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 behaviour.
15pub mod actions;
16mod blame_entry_tooltip;
17mod blink_manager;
18mod debounced_delay;
19pub mod display_map;
20mod editor_settings;
21mod element;
22mod git;
23mod highlight_matching_bracket;
24mod hover_links;
25mod hover_popover;
26mod hunk_diff;
27mod indent_guides;
28mod inlay_hint_cache;
29mod inline_completion_provider;
30pub mod items;
31mod linked_editing_ranges;
32mod mouse_context_menu;
33pub mod movement;
34mod persistence;
35mod rust_analyzer_ext;
36pub mod scroll;
37mod selections_collection;
38pub mod tasks;
39
40#[cfg(test)]
41mod editor_tests;
42#[cfg(any(test, feature = "test-support"))]
43pub mod test;
44use ::git::diff::{DiffHunk, DiffHunkStatus};
45use ::git::{parse_git_remote_url, BuildPermalinkParams, GitHostingProviderRegistry};
46pub(crate) use actions::*;
47use aho_corasick::AhoCorasick;
48use anyhow::{anyhow, Context as _, Result};
49use blink_manager::BlinkManager;
50use client::{Collaborator, ParticipantIndex};
51use clock::ReplicaId;
52use collections::{BTreeMap, Bound, HashMap, HashSet, VecDeque};
53use convert_case::{Case, Casing};
54use debounced_delay::DebouncedDelay;
55use display_map::*;
56pub use display_map::{DisplayPoint, FoldPlaceholder};
57pub use editor_settings::{CurrentLineHighlight, EditorSettings};
58use element::LineWithInvisibles;
59pub use element::{
60 CursorLayout, EditorElement, HighlightedRange, HighlightedRangeLine, PointForPosition,
61};
62use futures::FutureExt;
63use fuzzy::{StringMatch, StringMatchCandidate};
64use git::blame::GitBlame;
65use git::diff_hunk_to_display;
66use gpui::{
67 div, impl_actions, point, prelude::*, px, relative, size, uniform_list, Action, AnyElement,
68 AppContext, AsyncWindowContext, AvailableSpace, BackgroundExecutor, Bounds, ClipboardItem,
69 Context, DispatchPhase, ElementId, EventEmitter, FocusHandle, FocusOutEvent, FocusableView,
70 FontId, FontStyle, FontWeight, HighlightStyle, Hsla, InteractiveText, KeyContext,
71 ListSizingBehavior, Model, MouseButton, PaintQuad, ParentElement, Pixels, Render, SharedString,
72 Size, StrikethroughStyle, Styled, StyledText, Subscription, Task, TextStyle, UnderlineStyle,
73 UniformListScrollHandle, View, ViewContext, ViewInputHandler, VisualContext, WeakFocusHandle,
74 WeakView, WhiteSpace, WindowContext,
75};
76use highlight_matching_bracket::refresh_matching_bracket_highlights;
77use hover_popover::{hide_hover, HoverState};
78use hunk_diff::ExpandedHunks;
79pub(crate) use hunk_diff::HunkToExpand;
80use indent_guides::ActiveIndentGuidesState;
81use inlay_hint_cache::{InlayHintCache, InlaySplice, InvalidationStrategy};
82pub use inline_completion_provider::*;
83pub use items::MAX_TAB_TITLE_LEN;
84use itertools::Itertools;
85use language::{
86 char_kind,
87 language_settings::{self, all_language_settings, InlayHintSettings},
88 markdown, point_from_lsp, AutoindentMode, BracketPair, Buffer, Capability, CharKind, CodeLabel,
89 CursorShape, Diagnostic, Documentation, IndentKind, IndentSize, Language, OffsetRangeExt,
90 Point, Selection, SelectionGoal, TransactionId,
91};
92use language::{BufferRow, Runnable, RunnableRange};
93use linked_editing_ranges::refresh_linked_ranges;
94use task::{ResolvedTask, TaskTemplate, TaskVariables};
95
96use hover_links::{HoverLink, HoveredLinkState, InlayHighlight};
97pub use lsp::CompletionContext;
98use lsp::{CompletionTriggerKind, DiagnosticSeverity, LanguageServerId};
99use mouse_context_menu::MouseContextMenu;
100use movement::TextLayoutDetails;
101pub use multi_buffer::{
102 Anchor, AnchorRangeExt, ExcerptId, ExcerptRange, MultiBuffer, MultiBufferSnapshot, ToOffset,
103 ToPoint,
104};
105use multi_buffer::{ExpandExcerptDirection, MultiBufferPoint, MultiBufferRow, ToOffsetUtf16};
106use ordered_float::OrderedFloat;
107use parking_lot::{Mutex, RwLock};
108use project::project_settings::{GitGutterSetting, ProjectSettings};
109use project::{
110 CodeAction, Completion, FormatTrigger, Item, Location, Project, ProjectPath,
111 ProjectTransaction, TaskSourceKind, WorktreeId,
112};
113use rand::prelude::*;
114use rpc::{proto::*, ErrorExt};
115use scroll::{Autoscroll, OngoingScroll, ScrollAnchor, ScrollManager, ScrollbarAutoHide};
116use selections_collection::{resolve_multiple, MutableSelectionsCollection, SelectionsCollection};
117use serde::{Deserialize, Serialize};
118use settings::{update_settings_file, Settings, SettingsStore};
119use smallvec::SmallVec;
120use snippet::Snippet;
121use std::{
122 any::TypeId,
123 borrow::Cow,
124 cell::RefCell,
125 cmp::{self, Ordering, Reverse},
126 mem,
127 num::NonZeroU32,
128 ops::{ControlFlow, Deref, DerefMut, Not as _, Range, RangeInclusive},
129 path::Path,
130 rc::Rc,
131 sync::Arc,
132 time::{Duration, Instant},
133};
134pub use sum_tree::Bias;
135use sum_tree::TreeMap;
136use text::{BufferId, OffsetUtf16, Rope};
137use theme::{
138 observe_buffer_font_size_adjustment, ActiveTheme, PlayerColor, StatusColors, SyntaxTheme,
139 ThemeColors, ThemeSettings,
140};
141use ui::{
142 h_flex, prelude::*, ButtonSize, ButtonStyle, Disclosure, IconButton, IconName, IconSize,
143 ListItem, Popover, Tooltip,
144};
145use util::{defer, maybe, post_inc, RangeExt, ResultExt, TryFutureExt};
146use workspace::item::{ItemHandle, PreviewTabsSettings};
147use workspace::notifications::{DetachAndPromptErr, NotificationId};
148use workspace::{
149 searchable::SearchEvent, ItemNavHistory, SplitDirection, ViewId, Workspace, WorkspaceId,
150};
151use workspace::{OpenInTerminal, OpenTerminal, TabBarSettings, Toast};
152
153use crate::hover_links::find_url;
154
155pub const FILE_HEADER_HEIGHT: u8 = 1;
156pub const MULTI_BUFFER_EXCERPT_HEADER_HEIGHT: u8 = 1;
157pub const MULTI_BUFFER_EXCERPT_FOOTER_HEIGHT: u8 = 1;
158pub const DEFAULT_MULTIBUFFER_CONTEXT: u32 = 2;
159const CURSOR_BLINK_INTERVAL: Duration = Duration::from_millis(500);
160const MAX_LINE_LEN: usize = 1024;
161const MIN_NAVIGATION_HISTORY_ROW_DELTA: i64 = 10;
162const MAX_SELECTION_HISTORY_LEN: usize = 1024;
163pub(crate) const CURSORS_VISIBLE_FOR: Duration = Duration::from_millis(2000);
164#[doc(hidden)]
165pub const CODE_ACTIONS_DEBOUNCE_TIMEOUT: Duration = Duration::from_millis(250);
166#[doc(hidden)]
167pub const DOCUMENT_HIGHLIGHTS_DEBOUNCE_TIMEOUT: Duration = Duration::from_millis(75);
168
169pub(crate) const FORMAT_TIMEOUT: Duration = Duration::from_secs(2);
170
171pub fn render_parsed_markdown(
172 element_id: impl Into<ElementId>,
173 parsed: &language::ParsedMarkdown,
174 editor_style: &EditorStyle,
175 workspace: Option<WeakView<Workspace>>,
176 cx: &mut WindowContext,
177) -> InteractiveText {
178 let code_span_background_color = cx
179 .theme()
180 .colors()
181 .editor_document_highlight_read_background;
182
183 let highlights = gpui::combine_highlights(
184 parsed.highlights.iter().filter_map(|(range, highlight)| {
185 let highlight = highlight.to_highlight_style(&editor_style.syntax)?;
186 Some((range.clone(), highlight))
187 }),
188 parsed
189 .regions
190 .iter()
191 .zip(&parsed.region_ranges)
192 .filter_map(|(region, range)| {
193 if region.code {
194 Some((
195 range.clone(),
196 HighlightStyle {
197 background_color: Some(code_span_background_color),
198 ..Default::default()
199 },
200 ))
201 } else {
202 None
203 }
204 }),
205 );
206
207 let mut links = Vec::new();
208 let mut link_ranges = Vec::new();
209 for (range, region) in parsed.region_ranges.iter().zip(&parsed.regions) {
210 if let Some(link) = region.link.clone() {
211 links.push(link);
212 link_ranges.push(range.clone());
213 }
214 }
215
216 InteractiveText::new(
217 element_id,
218 StyledText::new(parsed.text.clone()).with_highlights(&editor_style.text, highlights),
219 )
220 .on_click(link_ranges, move |clicked_range_ix, cx| {
221 match &links[clicked_range_ix] {
222 markdown::Link::Web { url } => cx.open_url(url),
223 markdown::Link::Path { path } => {
224 if let Some(workspace) = &workspace {
225 _ = workspace.update(cx, |workspace, cx| {
226 workspace.open_abs_path(path.clone(), false, cx).detach();
227 });
228 }
229 }
230 }
231 })
232}
233
234#[derive(Clone, Copy, Debug, PartialEq, Eq, PartialOrd, Ord, Hash)]
235pub(crate) enum InlayId {
236 Suggestion(usize),
237 Hint(usize),
238}
239
240impl InlayId {
241 fn id(&self) -> usize {
242 match self {
243 Self::Suggestion(id) => *id,
244 Self::Hint(id) => *id,
245 }
246 }
247}
248
249enum DiffRowHighlight {}
250enum DocumentHighlightRead {}
251enum DocumentHighlightWrite {}
252enum InputComposition {}
253
254#[derive(Copy, Clone, PartialEq, Eq)]
255pub enum Direction {
256 Prev,
257 Next,
258}
259
260pub fn init_settings(cx: &mut AppContext) {
261 EditorSettings::register(cx);
262}
263
264pub fn init(cx: &mut AppContext) {
265 init_settings(cx);
266
267 workspace::register_project_item::<Editor>(cx);
268 workspace::register_followable_item::<Editor>(cx);
269 workspace::register_deserializable_item::<Editor>(cx);
270 cx.observe_new_views(
271 |workspace: &mut Workspace, _cx: &mut ViewContext<Workspace>| {
272 workspace.register_action(Editor::new_file);
273 workspace.register_action(Editor::new_file_in_direction);
274 },
275 )
276 .detach();
277
278 cx.on_action(move |_: &workspace::NewFile, cx| {
279 let app_state = workspace::AppState::global(cx);
280 if let Some(app_state) = app_state.upgrade() {
281 workspace::open_new(app_state, cx, |workspace, cx| {
282 Editor::new_file(workspace, &Default::default(), cx)
283 })
284 .detach();
285 }
286 });
287 cx.on_action(move |_: &workspace::NewWindow, cx| {
288 let app_state = workspace::AppState::global(cx);
289 if let Some(app_state) = app_state.upgrade() {
290 workspace::open_new(app_state, cx, |workspace, cx| {
291 Editor::new_file(workspace, &Default::default(), cx)
292 })
293 .detach();
294 }
295 });
296}
297
298pub struct SearchWithinRange;
299
300trait InvalidationRegion {
301 fn ranges(&self) -> &[Range<Anchor>];
302}
303
304#[derive(Clone, Debug, PartialEq)]
305pub enum SelectPhase {
306 Begin {
307 position: DisplayPoint,
308 add: bool,
309 click_count: usize,
310 },
311 BeginColumnar {
312 position: DisplayPoint,
313 reset: bool,
314 goal_column: u32,
315 },
316 Extend {
317 position: DisplayPoint,
318 click_count: usize,
319 },
320 Update {
321 position: DisplayPoint,
322 goal_column: u32,
323 scroll_delta: gpui::Point<f32>,
324 },
325 End,
326}
327
328#[derive(Clone, Debug)]
329pub enum SelectMode {
330 Character,
331 Word(Range<Anchor>),
332 Line(Range<Anchor>),
333 All,
334}
335
336#[derive(Copy, Clone, PartialEq, Eq, Debug)]
337pub enum EditorMode {
338 SingleLine { auto_width: bool },
339 AutoHeight { max_lines: usize },
340 Full,
341}
342
343#[derive(Clone, Debug)]
344pub enum SoftWrap {
345 None,
346 PreferLine,
347 EditorWidth,
348 Column(u32),
349}
350
351#[derive(Clone)]
352pub struct EditorStyle {
353 pub background: Hsla,
354 pub local_player: PlayerColor,
355 pub text: TextStyle,
356 pub scrollbar_width: Pixels,
357 pub syntax: Arc<SyntaxTheme>,
358 pub status: StatusColors,
359 pub inlay_hints_style: HighlightStyle,
360 pub suggestions_style: HighlightStyle,
361}
362
363impl Default for EditorStyle {
364 fn default() -> Self {
365 Self {
366 background: Hsla::default(),
367 local_player: PlayerColor::default(),
368 text: TextStyle::default(),
369 scrollbar_width: Pixels::default(),
370 syntax: Default::default(),
371 // HACK: Status colors don't have a real default.
372 // We should look into removing the status colors from the editor
373 // style and retrieve them directly from the theme.
374 status: StatusColors::dark(),
375 inlay_hints_style: HighlightStyle::default(),
376 suggestions_style: HighlightStyle::default(),
377 }
378 }
379}
380
381type CompletionId = usize;
382
383#[derive(Copy, Clone, Eq, PartialEq, PartialOrd, Ord, Debug, Default)]
384struct EditorActionId(usize);
385
386impl EditorActionId {
387 pub fn post_inc(&mut self) -> Self {
388 let answer = self.0;
389
390 *self = Self(answer + 1);
391
392 Self(answer)
393 }
394}
395
396// type GetFieldEditorTheme = dyn Fn(&theme::Theme) -> theme::FieldEditor;
397// type OverrideTextStyle = dyn Fn(&EditorStyle) -> Option<HighlightStyle>;
398
399type BackgroundHighlight = (fn(&ThemeColors) -> Hsla, Arc<[Range<Anchor>]>);
400type GutterHighlight = (fn(&AppContext) -> Hsla, Arc<[Range<Anchor>]>);
401
402struct ScrollbarMarkerState {
403 scrollbar_size: Size<Pixels>,
404 dirty: bool,
405 markers: Arc<[PaintQuad]>,
406 pending_refresh: Option<Task<Result<()>>>,
407}
408
409impl ScrollbarMarkerState {
410 fn should_refresh(&self, scrollbar_size: Size<Pixels>) -> bool {
411 self.pending_refresh.is_none() && (self.scrollbar_size != scrollbar_size || self.dirty)
412 }
413}
414
415impl Default for ScrollbarMarkerState {
416 fn default() -> Self {
417 Self {
418 scrollbar_size: Size::default(),
419 dirty: false,
420 markers: Arc::from([]),
421 pending_refresh: None,
422 }
423 }
424}
425
426#[derive(Clone, Debug)]
427struct RunnableTasks {
428 templates: Vec<(TaskSourceKind, TaskTemplate)>,
429 offset: MultiBufferOffset,
430 // We need the column at which the task context evaluation should take place (when we're spawning it via gutter).
431 column: u32,
432 // Values of all named captures, including those starting with '_'
433 extra_variables: HashMap<String, String>,
434 // Full range of the tagged region. We use it to determine which `extra_variables` to grab for context resolution in e.g. a modal.
435 context_range: Range<BufferOffset>,
436}
437
438#[derive(Clone)]
439struct ResolvedTasks {
440 templates: SmallVec<[(TaskSourceKind, ResolvedTask); 1]>,
441 position: Anchor,
442}
443#[derive(Copy, Clone, Debug)]
444struct MultiBufferOffset(usize);
445#[derive(Copy, Clone, Debug, PartialEq, PartialOrd)]
446struct BufferOffset(usize);
447/// Zed's primary text input `View`, allowing users to edit a [`MultiBuffer`]
448///
449/// See the [module level documentation](self) for more information.
450pub struct Editor {
451 focus_handle: FocusHandle,
452 last_focused_descendant: Option<WeakFocusHandle>,
453 /// The text buffer being edited
454 buffer: Model<MultiBuffer>,
455 /// Map of how text in the buffer should be displayed.
456 /// Handles soft wraps, folds, fake inlay text insertions, etc.
457 pub display_map: Model<DisplayMap>,
458 pub selections: SelectionsCollection,
459 pub scroll_manager: ScrollManager,
460 /// When inline assist editors are linked, they all render cursors because
461 /// typing enters text into each of them, even the ones that aren't focused.
462 pub(crate) show_cursor_when_unfocused: bool,
463 columnar_selection_tail: Option<Anchor>,
464 add_selections_state: Option<AddSelectionsState>,
465 select_next_state: Option<SelectNextState>,
466 select_prev_state: Option<SelectNextState>,
467 selection_history: SelectionHistory,
468 autoclose_regions: Vec<AutocloseRegion>,
469 snippet_stack: InvalidationStack<SnippetState>,
470 select_larger_syntax_node_stack: Vec<Box<[Selection<usize>]>>,
471 ime_transaction: Option<TransactionId>,
472 active_diagnostics: Option<ActiveDiagnosticGroup>,
473 soft_wrap_mode_override: Option<language_settings::SoftWrap>,
474 project: Option<Model<Project>>,
475 completion_provider: Option<Box<dyn CompletionProvider>>,
476 collaboration_hub: Option<Box<dyn CollaborationHub>>,
477 blink_manager: Model<BlinkManager>,
478 show_cursor_names: bool,
479 hovered_cursors: HashMap<HoveredCursor, Task<()>>,
480 pub show_local_selections: bool,
481 mode: EditorMode,
482 show_breadcrumbs: bool,
483 show_gutter: bool,
484 show_line_numbers: Option<bool>,
485 show_git_diff_gutter: Option<bool>,
486 show_code_actions: Option<bool>,
487 show_runnables: Option<bool>,
488 show_wrap_guides: Option<bool>,
489 show_indent_guides: Option<bool>,
490 placeholder_text: Option<Arc<str>>,
491 highlight_order: usize,
492 highlighted_rows: HashMap<TypeId, Vec<RowHighlight>>,
493 background_highlights: TreeMap<TypeId, BackgroundHighlight>,
494 gutter_highlights: TreeMap<TypeId, GutterHighlight>,
495 scrollbar_marker_state: ScrollbarMarkerState,
496 active_indent_guides_state: ActiveIndentGuidesState,
497 nav_history: Option<ItemNavHistory>,
498 context_menu: RwLock<Option<ContextMenu>>,
499 mouse_context_menu: Option<MouseContextMenu>,
500 completion_tasks: Vec<(CompletionId, Task<Option<()>>)>,
501 find_all_references_task_sources: Vec<Anchor>,
502 next_completion_id: CompletionId,
503 completion_documentation_pre_resolve_debounce: DebouncedDelay,
504 available_code_actions: Option<(Location, Arc<[CodeAction]>)>,
505 code_actions_task: Option<Task<()>>,
506 document_highlights_task: Option<Task<()>>,
507 linked_editing_range_task: Option<Task<Option<()>>>,
508 linked_edit_ranges: linked_editing_ranges::LinkedEditingRanges,
509 pending_rename: Option<RenameState>,
510 searchable: bool,
511 cursor_shape: CursorShape,
512 current_line_highlight: Option<CurrentLineHighlight>,
513 collapse_matches: bool,
514 autoindent_mode: Option<AutoindentMode>,
515 workspace: Option<(WeakView<Workspace>, Option<WorkspaceId>)>,
516 keymap_context_layers: BTreeMap<TypeId, KeyContext>,
517 input_enabled: bool,
518 use_modal_editing: bool,
519 read_only: bool,
520 leader_peer_id: Option<PeerId>,
521 remote_id: Option<ViewId>,
522 hover_state: HoverState,
523 gutter_hovered: bool,
524 hovered_link_state: Option<HoveredLinkState>,
525 inline_completion_provider: Option<RegisteredInlineCompletionProvider>,
526 active_inline_completion: Option<Inlay>,
527 show_inline_completions: bool,
528 inlay_hint_cache: InlayHintCache,
529 expanded_hunks: ExpandedHunks,
530 next_inlay_id: usize,
531 _subscriptions: Vec<Subscription>,
532 pixel_position_of_newest_cursor: Option<gpui::Point<Pixels>>,
533 gutter_dimensions: GutterDimensions,
534 pub vim_replace_map: HashMap<Range<usize>, String>,
535 style: Option<EditorStyle>,
536 next_editor_action_id: EditorActionId,
537 editor_actions: Rc<RefCell<BTreeMap<EditorActionId, Box<dyn Fn(&mut ViewContext<Self>)>>>>,
538 use_autoclose: bool,
539 use_auto_surround: bool,
540 auto_replace_emoji_shortcode: bool,
541 show_git_blame_gutter: bool,
542 show_git_blame_inline: bool,
543 show_git_blame_inline_delay_task: Option<Task<()>>,
544 git_blame_inline_enabled: bool,
545 show_selection_menu: Option<bool>,
546 blame: Option<Model<GitBlame>>,
547 blame_subscription: Option<Subscription>,
548 custom_context_menu: Option<
549 Box<
550 dyn 'static
551 + Fn(&mut Self, DisplayPoint, &mut ViewContext<Self>) -> Option<View<ui::ContextMenu>>,
552 >,
553 >,
554 last_bounds: Option<Bounds<Pixels>>,
555 expect_bounds_change: Option<Bounds<Pixels>>,
556 tasks: BTreeMap<(BufferId, BufferRow), RunnableTasks>,
557 tasks_update_task: Option<Task<()>>,
558 previous_search_ranges: Option<Arc<[Range<Anchor>]>>,
559 file_header_size: u8,
560 breadcrumb_header: Option<String>,
561}
562
563#[derive(Clone)]
564pub struct EditorSnapshot {
565 pub mode: EditorMode,
566 show_gutter: bool,
567 show_line_numbers: Option<bool>,
568 show_git_diff_gutter: Option<bool>,
569 show_code_actions: Option<bool>,
570 show_runnables: Option<bool>,
571 render_git_blame_gutter: bool,
572 pub display_snapshot: DisplaySnapshot,
573 pub placeholder_text: Option<Arc<str>>,
574 is_focused: bool,
575 scroll_anchor: ScrollAnchor,
576 ongoing_scroll: OngoingScroll,
577 current_line_highlight: CurrentLineHighlight,
578 gutter_hovered: bool,
579}
580
581const GIT_BLAME_GUTTER_WIDTH_CHARS: f32 = 53.;
582
583#[derive(Debug, Clone, Copy)]
584pub struct GutterDimensions {
585 pub left_padding: Pixels,
586 pub right_padding: Pixels,
587 pub width: Pixels,
588 pub margin: Pixels,
589 pub git_blame_entries_width: Option<Pixels>,
590}
591
592impl GutterDimensions {
593 /// The full width of the space taken up by the gutter.
594 pub fn full_width(&self) -> Pixels {
595 self.margin + self.width
596 }
597
598 /// The width of the space reserved for the fold indicators,
599 /// use alongside 'justify_end' and `gutter_width` to
600 /// right align content with the line numbers
601 pub fn fold_area_width(&self) -> Pixels {
602 self.margin + self.right_padding
603 }
604}
605
606impl Default for GutterDimensions {
607 fn default() -> Self {
608 Self {
609 left_padding: Pixels::ZERO,
610 right_padding: Pixels::ZERO,
611 width: Pixels::ZERO,
612 margin: Pixels::ZERO,
613 git_blame_entries_width: None,
614 }
615 }
616}
617
618#[derive(Debug)]
619pub struct RemoteSelection {
620 pub replica_id: ReplicaId,
621 pub selection: Selection<Anchor>,
622 pub cursor_shape: CursorShape,
623 pub peer_id: PeerId,
624 pub line_mode: bool,
625 pub participant_index: Option<ParticipantIndex>,
626 pub user_name: Option<SharedString>,
627}
628
629#[derive(Clone, Debug)]
630struct SelectionHistoryEntry {
631 selections: Arc<[Selection<Anchor>]>,
632 select_next_state: Option<SelectNextState>,
633 select_prev_state: Option<SelectNextState>,
634 add_selections_state: Option<AddSelectionsState>,
635}
636
637enum SelectionHistoryMode {
638 Normal,
639 Undoing,
640 Redoing,
641}
642
643#[derive(Clone, PartialEq, Eq, Hash)]
644struct HoveredCursor {
645 replica_id: u16,
646 selection_id: usize,
647}
648
649impl Default for SelectionHistoryMode {
650 fn default() -> Self {
651 Self::Normal
652 }
653}
654
655#[derive(Default)]
656struct SelectionHistory {
657 #[allow(clippy::type_complexity)]
658 selections_by_transaction:
659 HashMap<TransactionId, (Arc<[Selection<Anchor>]>, Option<Arc<[Selection<Anchor>]>>)>,
660 mode: SelectionHistoryMode,
661 undo_stack: VecDeque<SelectionHistoryEntry>,
662 redo_stack: VecDeque<SelectionHistoryEntry>,
663}
664
665impl SelectionHistory {
666 fn insert_transaction(
667 &mut self,
668 transaction_id: TransactionId,
669 selections: Arc<[Selection<Anchor>]>,
670 ) {
671 self.selections_by_transaction
672 .insert(transaction_id, (selections, None));
673 }
674
675 #[allow(clippy::type_complexity)]
676 fn transaction(
677 &self,
678 transaction_id: TransactionId,
679 ) -> Option<&(Arc<[Selection<Anchor>]>, Option<Arc<[Selection<Anchor>]>>)> {
680 self.selections_by_transaction.get(&transaction_id)
681 }
682
683 #[allow(clippy::type_complexity)]
684 fn transaction_mut(
685 &mut self,
686 transaction_id: TransactionId,
687 ) -> Option<&mut (Arc<[Selection<Anchor>]>, Option<Arc<[Selection<Anchor>]>>)> {
688 self.selections_by_transaction.get_mut(&transaction_id)
689 }
690
691 fn push(&mut self, entry: SelectionHistoryEntry) {
692 if !entry.selections.is_empty() {
693 match self.mode {
694 SelectionHistoryMode::Normal => {
695 self.push_undo(entry);
696 self.redo_stack.clear();
697 }
698 SelectionHistoryMode::Undoing => self.push_redo(entry),
699 SelectionHistoryMode::Redoing => self.push_undo(entry),
700 }
701 }
702 }
703
704 fn push_undo(&mut self, entry: SelectionHistoryEntry) {
705 if self
706 .undo_stack
707 .back()
708 .map_or(true, |e| e.selections != entry.selections)
709 {
710 self.undo_stack.push_back(entry);
711 if self.undo_stack.len() > MAX_SELECTION_HISTORY_LEN {
712 self.undo_stack.pop_front();
713 }
714 }
715 }
716
717 fn push_redo(&mut self, entry: SelectionHistoryEntry) {
718 if self
719 .redo_stack
720 .back()
721 .map_or(true, |e| e.selections != entry.selections)
722 {
723 self.redo_stack.push_back(entry);
724 if self.redo_stack.len() > MAX_SELECTION_HISTORY_LEN {
725 self.redo_stack.pop_front();
726 }
727 }
728 }
729}
730
731struct RowHighlight {
732 index: usize,
733 range: RangeInclusive<Anchor>,
734 color: Option<Hsla>,
735 should_autoscroll: bool,
736}
737
738#[derive(Clone, Debug)]
739struct AddSelectionsState {
740 above: bool,
741 stack: Vec<usize>,
742}
743
744#[derive(Clone)]
745struct SelectNextState {
746 query: AhoCorasick,
747 wordwise: bool,
748 done: bool,
749}
750
751impl std::fmt::Debug for SelectNextState {
752 fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
753 f.debug_struct(std::any::type_name::<Self>())
754 .field("wordwise", &self.wordwise)
755 .field("done", &self.done)
756 .finish()
757 }
758}
759
760#[derive(Debug)]
761struct AutocloseRegion {
762 selection_id: usize,
763 range: Range<Anchor>,
764 pair: BracketPair,
765}
766
767#[derive(Debug)]
768struct SnippetState {
769 ranges: Vec<Vec<Range<Anchor>>>,
770 active_index: usize,
771}
772
773#[doc(hidden)]
774pub struct RenameState {
775 pub range: Range<Anchor>,
776 pub old_name: Arc<str>,
777 pub editor: View<Editor>,
778 block_id: BlockId,
779}
780
781struct InvalidationStack<T>(Vec<T>);
782
783struct RegisteredInlineCompletionProvider {
784 provider: Arc<dyn InlineCompletionProviderHandle>,
785 _subscription: Subscription,
786}
787
788enum ContextMenu {
789 Completions(CompletionsMenu),
790 CodeActions(CodeActionsMenu),
791}
792
793impl ContextMenu {
794 fn select_first(
795 &mut self,
796 project: Option<&Model<Project>>,
797 cx: &mut ViewContext<Editor>,
798 ) -> bool {
799 if self.visible() {
800 match self {
801 ContextMenu::Completions(menu) => menu.select_first(project, cx),
802 ContextMenu::CodeActions(menu) => menu.select_first(cx),
803 }
804 true
805 } else {
806 false
807 }
808 }
809
810 fn select_prev(
811 &mut self,
812 project: Option<&Model<Project>>,
813 cx: &mut ViewContext<Editor>,
814 ) -> bool {
815 if self.visible() {
816 match self {
817 ContextMenu::Completions(menu) => menu.select_prev(project, cx),
818 ContextMenu::CodeActions(menu) => menu.select_prev(cx),
819 }
820 true
821 } else {
822 false
823 }
824 }
825
826 fn select_next(
827 &mut self,
828 project: Option<&Model<Project>>,
829 cx: &mut ViewContext<Editor>,
830 ) -> bool {
831 if self.visible() {
832 match self {
833 ContextMenu::Completions(menu) => menu.select_next(project, cx),
834 ContextMenu::CodeActions(menu) => menu.select_next(cx),
835 }
836 true
837 } else {
838 false
839 }
840 }
841
842 fn select_last(
843 &mut self,
844 project: Option<&Model<Project>>,
845 cx: &mut ViewContext<Editor>,
846 ) -> bool {
847 if self.visible() {
848 match self {
849 ContextMenu::Completions(menu) => menu.select_last(project, cx),
850 ContextMenu::CodeActions(menu) => menu.select_last(cx),
851 }
852 true
853 } else {
854 false
855 }
856 }
857
858 fn visible(&self) -> bool {
859 match self {
860 ContextMenu::Completions(menu) => menu.visible(),
861 ContextMenu::CodeActions(menu) => menu.visible(),
862 }
863 }
864
865 fn render(
866 &self,
867 cursor_position: DisplayPoint,
868 style: &EditorStyle,
869 max_height: Pixels,
870 workspace: Option<WeakView<Workspace>>,
871 cx: &mut ViewContext<Editor>,
872 ) -> (ContextMenuOrigin, AnyElement) {
873 match self {
874 ContextMenu::Completions(menu) => (
875 ContextMenuOrigin::EditorPoint(cursor_position),
876 menu.render(style, max_height, workspace, cx),
877 ),
878 ContextMenu::CodeActions(menu) => menu.render(cursor_position, style, max_height, cx),
879 }
880 }
881}
882
883enum ContextMenuOrigin {
884 EditorPoint(DisplayPoint),
885 GutterIndicator(DisplayRow),
886}
887
888#[derive(Clone)]
889struct CompletionsMenu {
890 id: CompletionId,
891 initial_position: Anchor,
892 buffer: Model<Buffer>,
893 completions: Arc<RwLock<Box<[Completion]>>>,
894 match_candidates: Arc<[StringMatchCandidate]>,
895 matches: Arc<[StringMatch]>,
896 selected_item: usize,
897 scroll_handle: UniformListScrollHandle,
898 selected_completion_documentation_resolve_debounce: Arc<Mutex<DebouncedDelay>>,
899}
900
901impl CompletionsMenu {
902 fn select_first(&mut self, project: Option<&Model<Project>>, cx: &mut ViewContext<Editor>) {
903 self.selected_item = 0;
904 self.scroll_handle.scroll_to_item(self.selected_item);
905 self.attempt_resolve_selected_completion_documentation(project, cx);
906 cx.notify();
907 }
908
909 fn select_prev(&mut self, project: Option<&Model<Project>>, cx: &mut ViewContext<Editor>) {
910 if self.selected_item > 0 {
911 self.selected_item -= 1;
912 } else {
913 self.selected_item = self.matches.len() - 1;
914 }
915 self.scroll_handle.scroll_to_item(self.selected_item);
916 self.attempt_resolve_selected_completion_documentation(project, cx);
917 cx.notify();
918 }
919
920 fn select_next(&mut self, project: Option<&Model<Project>>, cx: &mut ViewContext<Editor>) {
921 if self.selected_item + 1 < self.matches.len() {
922 self.selected_item += 1;
923 } else {
924 self.selected_item = 0;
925 }
926 self.scroll_handle.scroll_to_item(self.selected_item);
927 self.attempt_resolve_selected_completion_documentation(project, cx);
928 cx.notify();
929 }
930
931 fn select_last(&mut self, project: Option<&Model<Project>>, cx: &mut ViewContext<Editor>) {
932 self.selected_item = self.matches.len() - 1;
933 self.scroll_handle.scroll_to_item(self.selected_item);
934 self.attempt_resolve_selected_completion_documentation(project, cx);
935 cx.notify();
936 }
937
938 fn pre_resolve_completion_documentation(
939 buffer: Model<Buffer>,
940 completions: Arc<RwLock<Box<[Completion]>>>,
941 matches: Arc<[StringMatch]>,
942 editor: &Editor,
943 cx: &mut ViewContext<Editor>,
944 ) -> Task<()> {
945 let settings = EditorSettings::get_global(cx);
946 if !settings.show_completion_documentation {
947 return Task::ready(());
948 }
949
950 let Some(provider) = editor.completion_provider.as_ref() else {
951 return Task::ready(());
952 };
953
954 let resolve_task = provider.resolve_completions(
955 buffer,
956 matches.iter().map(|m| m.candidate_id).collect(),
957 completions.clone(),
958 cx,
959 );
960
961 return cx.spawn(move |this, mut cx| async move {
962 if let Some(true) = resolve_task.await.log_err() {
963 this.update(&mut cx, |_, cx| cx.notify()).ok();
964 }
965 });
966 }
967
968 fn attempt_resolve_selected_completion_documentation(
969 &mut self,
970 project: Option<&Model<Project>>,
971 cx: &mut ViewContext<Editor>,
972 ) {
973 let settings = EditorSettings::get_global(cx);
974 if !settings.show_completion_documentation {
975 return;
976 }
977
978 let completion_index = self.matches[self.selected_item].candidate_id;
979 let Some(project) = project else {
980 return;
981 };
982
983 let resolve_task = project.update(cx, |project, cx| {
984 project.resolve_completions(
985 self.buffer.clone(),
986 vec![completion_index],
987 self.completions.clone(),
988 cx,
989 )
990 });
991
992 let delay_ms =
993 EditorSettings::get_global(cx).completion_documentation_secondary_query_debounce;
994 let delay = Duration::from_millis(delay_ms);
995
996 self.selected_completion_documentation_resolve_debounce
997 .lock()
998 .fire_new(delay, cx, |_, cx| {
999 cx.spawn(move |this, mut cx| async move {
1000 if let Some(true) = resolve_task.await.log_err() {
1001 this.update(&mut cx, |_, cx| cx.notify()).ok();
1002 }
1003 })
1004 });
1005 }
1006
1007 fn visible(&self) -> bool {
1008 !self.matches.is_empty()
1009 }
1010
1011 fn render(
1012 &self,
1013 style: &EditorStyle,
1014 max_height: Pixels,
1015 workspace: Option<WeakView<Workspace>>,
1016 cx: &mut ViewContext<Editor>,
1017 ) -> AnyElement {
1018 let settings = EditorSettings::get_global(cx);
1019 let show_completion_documentation = settings.show_completion_documentation;
1020
1021 let widest_completion_ix = self
1022 .matches
1023 .iter()
1024 .enumerate()
1025 .max_by_key(|(_, mat)| {
1026 let completions = self.completions.read();
1027 let completion = &completions[mat.candidate_id];
1028 let documentation = &completion.documentation;
1029
1030 let mut len = completion.label.text.chars().count();
1031 if let Some(Documentation::SingleLine(text)) = documentation {
1032 if show_completion_documentation {
1033 len += text.chars().count();
1034 }
1035 }
1036
1037 len
1038 })
1039 .map(|(ix, _)| ix);
1040
1041 let completions = self.completions.clone();
1042 let matches = self.matches.clone();
1043 let selected_item = self.selected_item;
1044 let style = style.clone();
1045
1046 let multiline_docs = if show_completion_documentation {
1047 let mat = &self.matches[selected_item];
1048 let multiline_docs = match &self.completions.read()[mat.candidate_id].documentation {
1049 Some(Documentation::MultiLinePlainText(text)) => {
1050 Some(div().child(SharedString::from(text.clone())))
1051 }
1052 Some(Documentation::MultiLineMarkdown(parsed)) if !parsed.text.is_empty() => {
1053 Some(div().child(render_parsed_markdown(
1054 "completions_markdown",
1055 parsed,
1056 &style,
1057 workspace,
1058 cx,
1059 )))
1060 }
1061 _ => None,
1062 };
1063 multiline_docs.map(|div| {
1064 div.id("multiline_docs")
1065 .max_h(max_height)
1066 .flex_1()
1067 .px_1p5()
1068 .py_1()
1069 .min_w(px(260.))
1070 .max_w(px(640.))
1071 .w(px(500.))
1072 .overflow_y_scroll()
1073 .occlude()
1074 })
1075 } else {
1076 None
1077 };
1078
1079 let list = uniform_list(
1080 cx.view().clone(),
1081 "completions",
1082 matches.len(),
1083 move |_editor, range, cx| {
1084 let start_ix = range.start;
1085 let completions_guard = completions.read();
1086
1087 matches[range]
1088 .iter()
1089 .enumerate()
1090 .map(|(ix, mat)| {
1091 let item_ix = start_ix + ix;
1092 let candidate_id = mat.candidate_id;
1093 let completion = &completions_guard[candidate_id];
1094
1095 let documentation = if show_completion_documentation {
1096 &completion.documentation
1097 } else {
1098 &None
1099 };
1100
1101 let highlights = gpui::combine_highlights(
1102 mat.ranges().map(|range| (range, FontWeight::BOLD.into())),
1103 styled_runs_for_code_label(&completion.label, &style.syntax).map(
1104 |(range, mut highlight)| {
1105 // Ignore font weight for syntax highlighting, as we'll use it
1106 // for fuzzy matches.
1107 highlight.font_weight = None;
1108
1109 if completion.lsp_completion.deprecated.unwrap_or(false) {
1110 highlight.strikethrough = Some(StrikethroughStyle {
1111 thickness: 1.0.into(),
1112 ..Default::default()
1113 });
1114 highlight.color = Some(cx.theme().colors().text_muted);
1115 }
1116
1117 (range, highlight)
1118 },
1119 ),
1120 );
1121 let completion_label = StyledText::new(completion.label.text.clone())
1122 .with_highlights(&style.text, highlights);
1123 let documentation_label =
1124 if let Some(Documentation::SingleLine(text)) = documentation {
1125 if text.trim().is_empty() {
1126 None
1127 } else {
1128 Some(
1129 h_flex().ml_4().child(
1130 Label::new(text.clone())
1131 .size(LabelSize::Small)
1132 .color(Color::Muted),
1133 ),
1134 )
1135 }
1136 } else {
1137 None
1138 };
1139
1140 div().min_w(px(220.)).max_w(px(540.)).child(
1141 ListItem::new(mat.candidate_id)
1142 .inset(true)
1143 .selected(item_ix == selected_item)
1144 .on_click(cx.listener(move |editor, _event, cx| {
1145 cx.stop_propagation();
1146 if let Some(task) = editor.confirm_completion(
1147 &ConfirmCompletion {
1148 item_ix: Some(item_ix),
1149 },
1150 cx,
1151 ) {
1152 task.detach_and_log_err(cx)
1153 }
1154 }))
1155 .child(h_flex().overflow_hidden().child(completion_label))
1156 .end_slot::<Div>(documentation_label),
1157 )
1158 })
1159 .collect()
1160 },
1161 )
1162 .occlude()
1163 .max_h(max_height)
1164 .track_scroll(self.scroll_handle.clone())
1165 .with_width_from_item(widest_completion_ix)
1166 .with_sizing_behavior(ListSizingBehavior::Infer);
1167
1168 Popover::new()
1169 .child(list)
1170 .when_some(multiline_docs, |popover, multiline_docs| {
1171 popover.aside(multiline_docs)
1172 })
1173 .into_any_element()
1174 }
1175
1176 pub async fn filter(&mut self, query: Option<&str>, executor: BackgroundExecutor) {
1177 let mut matches = if let Some(query) = query {
1178 fuzzy::match_strings(
1179 &self.match_candidates,
1180 query,
1181 query.chars().any(|c| c.is_uppercase()),
1182 100,
1183 &Default::default(),
1184 executor,
1185 )
1186 .await
1187 } else {
1188 self.match_candidates
1189 .iter()
1190 .enumerate()
1191 .map(|(candidate_id, candidate)| StringMatch {
1192 candidate_id,
1193 score: Default::default(),
1194 positions: Default::default(),
1195 string: candidate.string.clone(),
1196 })
1197 .collect()
1198 };
1199
1200 // Remove all candidates where the query's start does not match the start of any word in the candidate
1201 if let Some(query) = query {
1202 if let Some(query_start) = query.chars().next() {
1203 matches.retain(|string_match| {
1204 split_words(&string_match.string).any(|word| {
1205 // Check that the first codepoint of the word as lowercase matches the first
1206 // codepoint of the query as lowercase
1207 word.chars()
1208 .flat_map(|codepoint| codepoint.to_lowercase())
1209 .zip(query_start.to_lowercase())
1210 .all(|(word_cp, query_cp)| word_cp == query_cp)
1211 })
1212 });
1213 }
1214 }
1215
1216 let completions = self.completions.read();
1217 matches.sort_unstable_by_key(|mat| {
1218 // We do want to strike a balance here between what the language server tells us
1219 // to sort by (the sort_text) and what are "obvious" good matches (i.e. when you type
1220 // `Creat` and there is a local variable called `CreateComponent`).
1221 // So what we do is: we bucket all matches into two buckets
1222 // - Strong matches
1223 // - Weak matches
1224 // Strong matches are the ones with a high fuzzy-matcher score (the "obvious" matches)
1225 // and the Weak matches are the rest.
1226 //
1227 // For the strong matches, we sort by the language-servers score first and for the weak
1228 // matches, we prefer our fuzzy finder first.
1229 //
1230 // The thinking behind that: it's useless to take the sort_text the language-server gives
1231 // us into account when it's obviously a bad match.
1232
1233 #[derive(PartialEq, Eq, PartialOrd, Ord)]
1234 enum MatchScore<'a> {
1235 Strong {
1236 sort_text: Option<&'a str>,
1237 score: Reverse<OrderedFloat<f64>>,
1238 sort_key: (usize, &'a str),
1239 },
1240 Weak {
1241 score: Reverse<OrderedFloat<f64>>,
1242 sort_text: Option<&'a str>,
1243 sort_key: (usize, &'a str),
1244 },
1245 }
1246
1247 let completion = &completions[mat.candidate_id];
1248 let sort_key = completion.sort_key();
1249 let sort_text = completion.lsp_completion.sort_text.as_deref();
1250 let score = Reverse(OrderedFloat(mat.score));
1251
1252 if mat.score >= 0.2 {
1253 MatchScore::Strong {
1254 sort_text,
1255 score,
1256 sort_key,
1257 }
1258 } else {
1259 MatchScore::Weak {
1260 score,
1261 sort_text,
1262 sort_key,
1263 }
1264 }
1265 });
1266
1267 for mat in &mut matches {
1268 let completion = &completions[mat.candidate_id];
1269 mat.string.clone_from(&completion.label.text);
1270 for position in &mut mat.positions {
1271 *position += completion.label.filter_range.start;
1272 }
1273 }
1274 drop(completions);
1275
1276 self.matches = matches.into();
1277 self.selected_item = 0;
1278 }
1279}
1280
1281#[derive(Clone)]
1282struct CodeActionContents {
1283 tasks: Option<Arc<ResolvedTasks>>,
1284 actions: Option<Arc<[CodeAction]>>,
1285}
1286
1287impl CodeActionContents {
1288 fn len(&self) -> usize {
1289 match (&self.tasks, &self.actions) {
1290 (Some(tasks), Some(actions)) => actions.len() + tasks.templates.len(),
1291 (Some(tasks), None) => tasks.templates.len(),
1292 (None, Some(actions)) => actions.len(),
1293 (None, None) => 0,
1294 }
1295 }
1296
1297 fn is_empty(&self) -> bool {
1298 match (&self.tasks, &self.actions) {
1299 (Some(tasks), Some(actions)) => actions.is_empty() && tasks.templates.is_empty(),
1300 (Some(tasks), None) => tasks.templates.is_empty(),
1301 (None, Some(actions)) => actions.is_empty(),
1302 (None, None) => true,
1303 }
1304 }
1305
1306 fn iter(&self) -> impl Iterator<Item = CodeActionsItem> + '_ {
1307 self.tasks
1308 .iter()
1309 .flat_map(|tasks| {
1310 tasks
1311 .templates
1312 .iter()
1313 .map(|(kind, task)| CodeActionsItem::Task(kind.clone(), task.clone()))
1314 })
1315 .chain(self.actions.iter().flat_map(|actions| {
1316 actions
1317 .iter()
1318 .map(|action| CodeActionsItem::CodeAction(action.clone()))
1319 }))
1320 }
1321 fn get(&self, index: usize) -> Option<CodeActionsItem> {
1322 match (&self.tasks, &self.actions) {
1323 (Some(tasks), Some(actions)) => {
1324 if index < tasks.templates.len() {
1325 tasks
1326 .templates
1327 .get(index)
1328 .cloned()
1329 .map(|(kind, task)| CodeActionsItem::Task(kind, task))
1330 } else {
1331 actions
1332 .get(index - tasks.templates.len())
1333 .cloned()
1334 .map(CodeActionsItem::CodeAction)
1335 }
1336 }
1337 (Some(tasks), None) => tasks
1338 .templates
1339 .get(index)
1340 .cloned()
1341 .map(|(kind, task)| CodeActionsItem::Task(kind, task)),
1342 (None, Some(actions)) => actions.get(index).cloned().map(CodeActionsItem::CodeAction),
1343 (None, None) => None,
1344 }
1345 }
1346}
1347
1348#[allow(clippy::large_enum_variant)]
1349#[derive(Clone)]
1350enum CodeActionsItem {
1351 Task(TaskSourceKind, ResolvedTask),
1352 CodeAction(CodeAction),
1353}
1354
1355impl CodeActionsItem {
1356 fn as_task(&self) -> Option<&ResolvedTask> {
1357 let Self::Task(_, task) = self else {
1358 return None;
1359 };
1360 Some(task)
1361 }
1362 fn as_code_action(&self) -> Option<&CodeAction> {
1363 let Self::CodeAction(action) = self else {
1364 return None;
1365 };
1366 Some(action)
1367 }
1368 fn label(&self) -> String {
1369 match self {
1370 Self::CodeAction(action) => action.lsp_action.title.clone(),
1371 Self::Task(_, task) => task.resolved_label.clone(),
1372 }
1373 }
1374}
1375
1376struct CodeActionsMenu {
1377 actions: CodeActionContents,
1378 buffer: Model<Buffer>,
1379 selected_item: usize,
1380 scroll_handle: UniformListScrollHandle,
1381 deployed_from_indicator: Option<DisplayRow>,
1382}
1383
1384impl CodeActionsMenu {
1385 fn select_first(&mut self, cx: &mut ViewContext<Editor>) {
1386 self.selected_item = 0;
1387 self.scroll_handle.scroll_to_item(self.selected_item);
1388 cx.notify()
1389 }
1390
1391 fn select_prev(&mut self, cx: &mut ViewContext<Editor>) {
1392 if self.selected_item > 0 {
1393 self.selected_item -= 1;
1394 } else {
1395 self.selected_item = self.actions.len() - 1;
1396 }
1397 self.scroll_handle.scroll_to_item(self.selected_item);
1398 cx.notify();
1399 }
1400
1401 fn select_next(&mut self, cx: &mut ViewContext<Editor>) {
1402 if self.selected_item + 1 < self.actions.len() {
1403 self.selected_item += 1;
1404 } else {
1405 self.selected_item = 0;
1406 }
1407 self.scroll_handle.scroll_to_item(self.selected_item);
1408 cx.notify();
1409 }
1410
1411 fn select_last(&mut self, cx: &mut ViewContext<Editor>) {
1412 self.selected_item = self.actions.len() - 1;
1413 self.scroll_handle.scroll_to_item(self.selected_item);
1414 cx.notify()
1415 }
1416
1417 fn visible(&self) -> bool {
1418 !self.actions.is_empty()
1419 }
1420
1421 fn render(
1422 &self,
1423 cursor_position: DisplayPoint,
1424 _style: &EditorStyle,
1425 max_height: Pixels,
1426 cx: &mut ViewContext<Editor>,
1427 ) -> (ContextMenuOrigin, AnyElement) {
1428 let actions = self.actions.clone();
1429 let selected_item = self.selected_item;
1430 let element = uniform_list(
1431 cx.view().clone(),
1432 "code_actions_menu",
1433 self.actions.len(),
1434 move |_this, range, cx| {
1435 actions
1436 .iter()
1437 .skip(range.start)
1438 .take(range.end - range.start)
1439 .enumerate()
1440 .map(|(ix, action)| {
1441 let item_ix = range.start + ix;
1442 let selected = selected_item == item_ix;
1443 let colors = cx.theme().colors();
1444 div()
1445 .px_2()
1446 .text_color(colors.text)
1447 .when(selected, |style| {
1448 style
1449 .bg(colors.element_active)
1450 .text_color(colors.text_accent)
1451 })
1452 .hover(|style| {
1453 style
1454 .bg(colors.element_hover)
1455 .text_color(colors.text_accent)
1456 })
1457 .whitespace_nowrap()
1458 .when_some(action.as_code_action(), |this, action| {
1459 this.on_mouse_down(
1460 MouseButton::Left,
1461 cx.listener(move |editor, _, cx| {
1462 cx.stop_propagation();
1463 if let Some(task) = editor.confirm_code_action(
1464 &ConfirmCodeAction {
1465 item_ix: Some(item_ix),
1466 },
1467 cx,
1468 ) {
1469 task.detach_and_log_err(cx)
1470 }
1471 }),
1472 )
1473 // TASK: It would be good to make lsp_action.title a SharedString to avoid allocating here.
1474 .child(SharedString::from(action.lsp_action.title.clone()))
1475 })
1476 .when_some(action.as_task(), |this, task| {
1477 this.on_mouse_down(
1478 MouseButton::Left,
1479 cx.listener(move |editor, _, cx| {
1480 cx.stop_propagation();
1481 if let Some(task) = editor.confirm_code_action(
1482 &ConfirmCodeAction {
1483 item_ix: Some(item_ix),
1484 },
1485 cx,
1486 ) {
1487 task.detach_and_log_err(cx)
1488 }
1489 }),
1490 )
1491 .child(SharedString::from(task.resolved_label.clone()))
1492 })
1493 })
1494 .collect()
1495 },
1496 )
1497 .elevation_1(cx)
1498 .px_2()
1499 .py_1()
1500 .max_h(max_height)
1501 .occlude()
1502 .track_scroll(self.scroll_handle.clone())
1503 .with_width_from_item(
1504 self.actions
1505 .iter()
1506 .enumerate()
1507 .max_by_key(|(_, action)| match action {
1508 CodeActionsItem::Task(_, task) => task.resolved_label.chars().count(),
1509 CodeActionsItem::CodeAction(action) => action.lsp_action.title.chars().count(),
1510 })
1511 .map(|(ix, _)| ix),
1512 )
1513 .with_sizing_behavior(ListSizingBehavior::Infer)
1514 .into_any_element();
1515
1516 let cursor_position = if let Some(row) = self.deployed_from_indicator {
1517 ContextMenuOrigin::GutterIndicator(row)
1518 } else {
1519 ContextMenuOrigin::EditorPoint(cursor_position)
1520 };
1521
1522 (cursor_position, element)
1523 }
1524}
1525
1526#[derive(Debug)]
1527struct ActiveDiagnosticGroup {
1528 primary_range: Range<Anchor>,
1529 primary_message: String,
1530 group_id: usize,
1531 blocks: HashMap<BlockId, Diagnostic>,
1532 is_valid: bool,
1533}
1534
1535#[derive(Serialize, Deserialize, Clone, Debug)]
1536pub struct ClipboardSelection {
1537 pub len: usize,
1538 pub is_entire_line: bool,
1539 pub first_line_indent: u32,
1540}
1541
1542#[derive(Debug)]
1543pub(crate) struct NavigationData {
1544 cursor_anchor: Anchor,
1545 cursor_position: Point,
1546 scroll_anchor: ScrollAnchor,
1547 scroll_top_row: u32,
1548}
1549
1550enum GotoDefinitionKind {
1551 Symbol,
1552 Type,
1553 Implementation,
1554}
1555
1556#[derive(Debug, Clone)]
1557enum InlayHintRefreshReason {
1558 Toggle(bool),
1559 SettingsChange(InlayHintSettings),
1560 NewLinesShown,
1561 BufferEdited(HashSet<Arc<Language>>),
1562 RefreshRequested,
1563 ExcerptsRemoved(Vec<ExcerptId>),
1564}
1565
1566impl InlayHintRefreshReason {
1567 fn description(&self) -> &'static str {
1568 match self {
1569 Self::Toggle(_) => "toggle",
1570 Self::SettingsChange(_) => "settings change",
1571 Self::NewLinesShown => "new lines shown",
1572 Self::BufferEdited(_) => "buffer edited",
1573 Self::RefreshRequested => "refresh requested",
1574 Self::ExcerptsRemoved(_) => "excerpts removed",
1575 }
1576 }
1577}
1578
1579impl Editor {
1580 pub fn single_line(cx: &mut ViewContext<Self>) -> Self {
1581 let buffer = cx.new_model(|cx| Buffer::local("", cx));
1582 let buffer = cx.new_model(|cx| MultiBuffer::singleton(buffer, cx));
1583 Self::new(
1584 EditorMode::SingleLine { auto_width: false },
1585 buffer,
1586 None,
1587 false,
1588 cx,
1589 )
1590 }
1591
1592 pub fn multi_line(cx: &mut ViewContext<Self>) -> Self {
1593 let buffer = cx.new_model(|cx| Buffer::local("", cx));
1594 let buffer = cx.new_model(|cx| MultiBuffer::singleton(buffer, cx));
1595 Self::new(EditorMode::Full, buffer, None, false, cx)
1596 }
1597
1598 pub fn auto_width(cx: &mut ViewContext<Self>) -> Self {
1599 let buffer = cx.new_model(|cx| Buffer::local("", cx));
1600 let buffer = cx.new_model(|cx| MultiBuffer::singleton(buffer, cx));
1601 Self::new(
1602 EditorMode::SingleLine { auto_width: true },
1603 buffer,
1604 None,
1605 false,
1606 cx,
1607 )
1608 }
1609
1610 pub fn auto_height(max_lines: usize, cx: &mut ViewContext<Self>) -> Self {
1611 let buffer = cx.new_model(|cx| Buffer::local("", cx));
1612 let buffer = cx.new_model(|cx| MultiBuffer::singleton(buffer, cx));
1613 Self::new(
1614 EditorMode::AutoHeight { max_lines },
1615 buffer,
1616 None,
1617 false,
1618 cx,
1619 )
1620 }
1621
1622 pub fn for_buffer(
1623 buffer: Model<Buffer>,
1624 project: Option<Model<Project>>,
1625 cx: &mut ViewContext<Self>,
1626 ) -> Self {
1627 let buffer = cx.new_model(|cx| MultiBuffer::singleton(buffer, cx));
1628 Self::new(EditorMode::Full, buffer, project, false, cx)
1629 }
1630
1631 pub fn for_multibuffer(
1632 buffer: Model<MultiBuffer>,
1633 project: Option<Model<Project>>,
1634 show_excerpt_controls: bool,
1635 cx: &mut ViewContext<Self>,
1636 ) -> Self {
1637 Self::new(EditorMode::Full, buffer, project, show_excerpt_controls, cx)
1638 }
1639
1640 pub fn clone(&self, cx: &mut ViewContext<Self>) -> Self {
1641 let show_excerpt_controls = self.display_map.read(cx).show_excerpt_controls();
1642 let mut clone = Self::new(
1643 self.mode,
1644 self.buffer.clone(),
1645 self.project.clone(),
1646 show_excerpt_controls,
1647 cx,
1648 );
1649 self.display_map.update(cx, |display_map, cx| {
1650 let snapshot = display_map.snapshot(cx);
1651 clone.display_map.update(cx, |display_map, cx| {
1652 display_map.set_state(&snapshot, cx);
1653 });
1654 });
1655 clone.selections.clone_state(&self.selections);
1656 clone.scroll_manager.clone_state(&self.scroll_manager);
1657 clone.searchable = self.searchable;
1658 clone
1659 }
1660
1661 pub fn new(
1662 mode: EditorMode,
1663 buffer: Model<MultiBuffer>,
1664 project: Option<Model<Project>>,
1665 show_excerpt_controls: bool,
1666 cx: &mut ViewContext<Self>,
1667 ) -> Self {
1668 let style = cx.text_style();
1669 let font_size = style.font_size.to_pixels(cx.rem_size());
1670 let editor = cx.view().downgrade();
1671 let fold_placeholder = FoldPlaceholder {
1672 constrain_width: true,
1673 render: Arc::new(move |fold_id, fold_range, cx| {
1674 let editor = editor.clone();
1675 div()
1676 .id(fold_id)
1677 .bg(cx.theme().colors().ghost_element_background)
1678 .hover(|style| style.bg(cx.theme().colors().ghost_element_hover))
1679 .active(|style| style.bg(cx.theme().colors().ghost_element_active))
1680 .rounded_sm()
1681 .size_full()
1682 .cursor_pointer()
1683 .child("⋯")
1684 .on_mouse_down(MouseButton::Left, |_, cx| cx.stop_propagation())
1685 .on_click(move |_, cx| {
1686 editor
1687 .update(cx, |editor, cx| {
1688 editor.unfold_ranges(
1689 [fold_range.start..fold_range.end],
1690 true,
1691 false,
1692 cx,
1693 );
1694 cx.stop_propagation();
1695 })
1696 .ok();
1697 })
1698 .into_any()
1699 }),
1700 merge_adjacent: true,
1701 };
1702 let file_header_size = if show_excerpt_controls { 3 } else { 2 };
1703 let display_map = cx.new_model(|cx| {
1704 DisplayMap::new(
1705 buffer.clone(),
1706 style.font(),
1707 font_size,
1708 None,
1709 show_excerpt_controls,
1710 file_header_size,
1711 MULTI_BUFFER_EXCERPT_HEADER_HEIGHT,
1712 MULTI_BUFFER_EXCERPT_FOOTER_HEIGHT,
1713 fold_placeholder,
1714 cx,
1715 )
1716 });
1717
1718 let selections = SelectionsCollection::new(display_map.clone(), buffer.clone());
1719
1720 let blink_manager = cx.new_model(|cx| BlinkManager::new(CURSOR_BLINK_INTERVAL, cx));
1721
1722 let soft_wrap_mode_override = matches!(mode, EditorMode::SingleLine { .. })
1723 .then(|| language_settings::SoftWrap::PreferLine);
1724
1725 let mut project_subscriptions = Vec::new();
1726 if mode == EditorMode::Full {
1727 if let Some(project) = project.as_ref() {
1728 if buffer.read(cx).is_singleton() {
1729 project_subscriptions.push(cx.observe(project, |_, _, cx| {
1730 cx.emit(EditorEvent::TitleChanged);
1731 }));
1732 }
1733 project_subscriptions.push(cx.subscribe(project, |editor, _, event, cx| {
1734 if let project::Event::RefreshInlayHints = event {
1735 editor.refresh_inlay_hints(InlayHintRefreshReason::RefreshRequested, cx);
1736 } else if let project::Event::SnippetEdit(id, snippet_edits) = event {
1737 if let Some(buffer) = editor.buffer.read(cx).buffer(*id) {
1738 let focus_handle = editor.focus_handle(cx);
1739 if focus_handle.is_focused(cx) {
1740 let snapshot = buffer.read(cx).snapshot();
1741 for (range, snippet) in snippet_edits {
1742 let editor_range =
1743 language::range_from_lsp(*range).to_offset(&snapshot);
1744 editor
1745 .insert_snippet(&[editor_range], snippet.clone(), cx)
1746 .ok();
1747 }
1748 }
1749 }
1750 }
1751 }));
1752 let task_inventory = project.read(cx).task_inventory().clone();
1753 project_subscriptions.push(cx.observe(&task_inventory, |editor, _, cx| {
1754 editor.tasks_update_task = Some(editor.refresh_runnables(cx));
1755 }));
1756 }
1757 }
1758
1759 let inlay_hint_settings = inlay_hint_settings(
1760 selections.newest_anchor().head(),
1761 &buffer.read(cx).snapshot(cx),
1762 cx,
1763 );
1764 let focus_handle = cx.focus_handle();
1765 cx.on_focus(&focus_handle, Self::handle_focus).detach();
1766 cx.on_focus_out(&focus_handle, Self::handle_focus_out)
1767 .detach();
1768 cx.on_blur(&focus_handle, Self::handle_blur).detach();
1769
1770 let show_indent_guides = if matches!(mode, EditorMode::SingleLine { .. }) {
1771 Some(false)
1772 } else {
1773 None
1774 };
1775
1776 let mut this = Self {
1777 focus_handle,
1778 show_cursor_when_unfocused: false,
1779 last_focused_descendant: None,
1780 buffer: buffer.clone(),
1781 display_map: display_map.clone(),
1782 selections,
1783 scroll_manager: ScrollManager::new(cx),
1784 columnar_selection_tail: None,
1785 add_selections_state: None,
1786 select_next_state: None,
1787 select_prev_state: None,
1788 selection_history: Default::default(),
1789 autoclose_regions: Default::default(),
1790 snippet_stack: Default::default(),
1791 select_larger_syntax_node_stack: Vec::new(),
1792 ime_transaction: Default::default(),
1793 active_diagnostics: None,
1794 soft_wrap_mode_override,
1795 completion_provider: project.clone().map(|project| Box::new(project) as _),
1796 collaboration_hub: project.clone().map(|project| Box::new(project) as _),
1797 project,
1798 blink_manager: blink_manager.clone(),
1799 show_local_selections: true,
1800 mode,
1801 show_breadcrumbs: EditorSettings::get_global(cx).toolbar.breadcrumbs,
1802 show_gutter: mode == EditorMode::Full,
1803 show_line_numbers: None,
1804 show_git_diff_gutter: None,
1805 show_code_actions: None,
1806 show_runnables: None,
1807 show_wrap_guides: None,
1808 show_indent_guides,
1809 placeholder_text: None,
1810 highlight_order: 0,
1811 highlighted_rows: HashMap::default(),
1812 background_highlights: Default::default(),
1813 gutter_highlights: TreeMap::default(),
1814 scrollbar_marker_state: ScrollbarMarkerState::default(),
1815 active_indent_guides_state: ActiveIndentGuidesState::default(),
1816 nav_history: None,
1817 context_menu: RwLock::new(None),
1818 mouse_context_menu: None,
1819 completion_tasks: Default::default(),
1820 find_all_references_task_sources: Vec::new(),
1821 next_completion_id: 0,
1822 completion_documentation_pre_resolve_debounce: DebouncedDelay::new(),
1823 next_inlay_id: 0,
1824 available_code_actions: Default::default(),
1825 code_actions_task: Default::default(),
1826 document_highlights_task: Default::default(),
1827 linked_editing_range_task: Default::default(),
1828 pending_rename: Default::default(),
1829 searchable: true,
1830 cursor_shape: Default::default(),
1831 current_line_highlight: None,
1832 autoindent_mode: Some(AutoindentMode::EachLine),
1833 collapse_matches: false,
1834 workspace: None,
1835 keymap_context_layers: Default::default(),
1836 input_enabled: true,
1837 use_modal_editing: mode == EditorMode::Full,
1838 read_only: false,
1839 use_autoclose: true,
1840 use_auto_surround: true,
1841 auto_replace_emoji_shortcode: false,
1842 leader_peer_id: None,
1843 remote_id: None,
1844 hover_state: Default::default(),
1845 hovered_link_state: Default::default(),
1846 inline_completion_provider: None,
1847 active_inline_completion: None,
1848 inlay_hint_cache: InlayHintCache::new(inlay_hint_settings),
1849 expanded_hunks: ExpandedHunks::default(),
1850 gutter_hovered: false,
1851 pixel_position_of_newest_cursor: None,
1852 last_bounds: None,
1853 expect_bounds_change: None,
1854 gutter_dimensions: GutterDimensions::default(),
1855 style: None,
1856 show_cursor_names: false,
1857 hovered_cursors: Default::default(),
1858 next_editor_action_id: EditorActionId::default(),
1859 editor_actions: Rc::default(),
1860 vim_replace_map: Default::default(),
1861 show_inline_completions: mode == EditorMode::Full,
1862 custom_context_menu: None,
1863 show_git_blame_gutter: false,
1864 show_git_blame_inline: false,
1865 show_selection_menu: None,
1866 show_git_blame_inline_delay_task: None,
1867 git_blame_inline_enabled: ProjectSettings::get_global(cx).git.inline_blame_enabled(),
1868 blame: None,
1869 blame_subscription: None,
1870 file_header_size,
1871 tasks: Default::default(),
1872 _subscriptions: vec![
1873 cx.observe(&buffer, Self::on_buffer_changed),
1874 cx.subscribe(&buffer, Self::on_buffer_event),
1875 cx.observe(&display_map, Self::on_display_map_changed),
1876 cx.observe(&blink_manager, |_, _, cx| cx.notify()),
1877 cx.observe_global::<SettingsStore>(Self::settings_changed),
1878 observe_buffer_font_size_adjustment(cx, |_, cx| cx.notify()),
1879 cx.observe_window_activation(|editor, cx| {
1880 let active = cx.is_window_active();
1881 editor.blink_manager.update(cx, |blink_manager, cx| {
1882 if active {
1883 blink_manager.enable(cx);
1884 } else {
1885 blink_manager.show_cursor(cx);
1886 blink_manager.disable(cx);
1887 }
1888 });
1889 }),
1890 ],
1891 tasks_update_task: None,
1892 linked_edit_ranges: Default::default(),
1893 previous_search_ranges: None,
1894 breadcrumb_header: None,
1895 };
1896 this.tasks_update_task = Some(this.refresh_runnables(cx));
1897 this._subscriptions.extend(project_subscriptions);
1898
1899 this.end_selection(cx);
1900 this.scroll_manager.show_scrollbar(cx);
1901
1902 if mode == EditorMode::Full {
1903 let should_auto_hide_scrollbars = cx.should_auto_hide_scrollbars();
1904 cx.set_global(ScrollbarAutoHide(should_auto_hide_scrollbars));
1905
1906 if this.git_blame_inline_enabled {
1907 this.git_blame_inline_enabled = true;
1908 this.start_git_blame_inline(false, cx);
1909 }
1910 }
1911
1912 this.report_editor_event("open", None, cx);
1913 this
1914 }
1915
1916 pub fn mouse_menu_is_focused(&self, cx: &mut WindowContext) -> bool {
1917 self.mouse_context_menu
1918 .as_ref()
1919 .is_some_and(|menu| menu.context_menu.focus_handle(cx).is_focused(cx))
1920 }
1921
1922 fn key_context(&self, cx: &AppContext) -> KeyContext {
1923 let mut key_context = KeyContext::new_with_defaults();
1924 key_context.add("Editor");
1925 let mode = match self.mode {
1926 EditorMode::SingleLine { .. } => "single_line",
1927 EditorMode::AutoHeight { .. } => "auto_height",
1928 EditorMode::Full => "full",
1929 };
1930 key_context.set("mode", mode);
1931 if self.pending_rename.is_some() {
1932 key_context.add("renaming");
1933 }
1934 if self.context_menu_visible() {
1935 match self.context_menu.read().as_ref() {
1936 Some(ContextMenu::Completions(_)) => {
1937 key_context.add("menu");
1938 key_context.add("showing_completions")
1939 }
1940 Some(ContextMenu::CodeActions(_)) => {
1941 key_context.add("menu");
1942 key_context.add("showing_code_actions")
1943 }
1944 None => {}
1945 }
1946 }
1947
1948 for layer in self.keymap_context_layers.values() {
1949 key_context.extend(layer);
1950 }
1951
1952 if let Some(extension) = self
1953 .buffer
1954 .read(cx)
1955 .as_singleton()
1956 .and_then(|buffer| buffer.read(cx).file()?.path().extension()?.to_str())
1957 {
1958 key_context.set("extension", extension.to_string());
1959 }
1960
1961 if self.has_active_inline_completion(cx) {
1962 key_context.add("copilot_suggestion");
1963 key_context.add("inline_completion");
1964 }
1965
1966 key_context
1967 }
1968
1969 pub fn new_file(
1970 workspace: &mut Workspace,
1971 _: &workspace::NewFile,
1972 cx: &mut ViewContext<Workspace>,
1973 ) {
1974 let project = workspace.project().clone();
1975 let create = project.update(cx, |project, cx| project.create_buffer(cx));
1976
1977 cx.spawn(|workspace, mut cx| async move {
1978 let buffer = create.await?;
1979 workspace.update(&mut cx, |workspace, cx| {
1980 workspace.add_item_to_active_pane(
1981 Box::new(
1982 cx.new_view(|cx| Editor::for_buffer(buffer, Some(project.clone()), cx)),
1983 ),
1984 None,
1985 cx,
1986 )
1987 })
1988 })
1989 .detach_and_prompt_err("Failed to create buffer", cx, |e, _| match e.error_code() {
1990 ErrorCode::RemoteUpgradeRequired => Some(format!(
1991 "The remote instance of Zed does not support this yet. It must be upgraded to {}",
1992 e.error_tag("required").unwrap_or("the latest version")
1993 )),
1994 _ => None,
1995 });
1996 }
1997
1998 pub fn new_file_in_direction(
1999 workspace: &mut Workspace,
2000 action: &workspace::NewFileInDirection,
2001 cx: &mut ViewContext<Workspace>,
2002 ) {
2003 let project = workspace.project().clone();
2004 let create = project.update(cx, |project, cx| project.create_buffer(cx));
2005 let direction = action.0;
2006
2007 cx.spawn(|workspace, mut cx| async move {
2008 let buffer = create.await?;
2009 workspace.update(&mut cx, move |workspace, cx| {
2010 workspace.split_item(
2011 direction,
2012 Box::new(
2013 cx.new_view(|cx| Editor::for_buffer(buffer, Some(project.clone()), cx)),
2014 ),
2015 cx,
2016 )
2017 })?;
2018 anyhow::Ok(())
2019 })
2020 .detach_and_prompt_err("Failed to create buffer", cx, |e, _| match e.error_code() {
2021 ErrorCode::RemoteUpgradeRequired => Some(format!(
2022 "The remote instance of Zed does not support this yet. It must be upgraded to {}",
2023 e.error_tag("required").unwrap_or("the latest version")
2024 )),
2025 _ => None,
2026 });
2027 }
2028
2029 pub fn replica_id(&self, cx: &AppContext) -> ReplicaId {
2030 self.buffer.read(cx).replica_id()
2031 }
2032
2033 pub fn leader_peer_id(&self) -> Option<PeerId> {
2034 self.leader_peer_id
2035 }
2036
2037 pub fn buffer(&self) -> &Model<MultiBuffer> {
2038 &self.buffer
2039 }
2040
2041 pub fn workspace(&self) -> Option<View<Workspace>> {
2042 self.workspace.as_ref()?.0.upgrade()
2043 }
2044
2045 pub fn title<'a>(&self, cx: &'a AppContext) -> Cow<'a, str> {
2046 self.buffer().read(cx).title(cx)
2047 }
2048
2049 pub fn snapshot(&mut self, cx: &mut WindowContext) -> EditorSnapshot {
2050 EditorSnapshot {
2051 mode: self.mode,
2052 show_gutter: self.show_gutter,
2053 show_line_numbers: self.show_line_numbers,
2054 show_git_diff_gutter: self.show_git_diff_gutter,
2055 show_code_actions: self.show_code_actions,
2056 show_runnables: self.show_runnables,
2057 render_git_blame_gutter: self.render_git_blame_gutter(cx),
2058 display_snapshot: self.display_map.update(cx, |map, cx| map.snapshot(cx)),
2059 scroll_anchor: self.scroll_manager.anchor(),
2060 ongoing_scroll: self.scroll_manager.ongoing_scroll(),
2061 placeholder_text: self.placeholder_text.clone(),
2062 is_focused: self.focus_handle.is_focused(cx),
2063 current_line_highlight: self
2064 .current_line_highlight
2065 .unwrap_or_else(|| EditorSettings::get_global(cx).current_line_highlight),
2066 gutter_hovered: self.gutter_hovered,
2067 }
2068 }
2069
2070 pub fn language_at<T: ToOffset>(&self, point: T, cx: &AppContext) -> Option<Arc<Language>> {
2071 self.buffer.read(cx).language_at(point, cx)
2072 }
2073
2074 pub fn file_at<T: ToOffset>(
2075 &self,
2076 point: T,
2077 cx: &AppContext,
2078 ) -> Option<Arc<dyn language::File>> {
2079 self.buffer.read(cx).read(cx).file_at(point).cloned()
2080 }
2081
2082 pub fn active_excerpt(
2083 &self,
2084 cx: &AppContext,
2085 ) -> Option<(ExcerptId, Model<Buffer>, Range<text::Anchor>)> {
2086 self.buffer
2087 .read(cx)
2088 .excerpt_containing(self.selections.newest_anchor().head(), cx)
2089 }
2090
2091 pub fn mode(&self) -> EditorMode {
2092 self.mode
2093 }
2094
2095 pub fn collaboration_hub(&self) -> Option<&dyn CollaborationHub> {
2096 self.collaboration_hub.as_deref()
2097 }
2098
2099 pub fn set_collaboration_hub(&mut self, hub: Box<dyn CollaborationHub>) {
2100 self.collaboration_hub = Some(hub);
2101 }
2102
2103 pub fn set_custom_context_menu(
2104 &mut self,
2105 f: impl 'static
2106 + Fn(&mut Self, DisplayPoint, &mut ViewContext<Self>) -> Option<View<ui::ContextMenu>>,
2107 ) {
2108 self.custom_context_menu = Some(Box::new(f))
2109 }
2110
2111 pub fn set_completion_provider(&mut self, provider: Box<dyn CompletionProvider>) {
2112 self.completion_provider = Some(provider);
2113 }
2114
2115 pub fn set_inline_completion_provider<T>(
2116 &mut self,
2117 provider: Option<Model<T>>,
2118 cx: &mut ViewContext<Self>,
2119 ) where
2120 T: InlineCompletionProvider,
2121 {
2122 self.inline_completion_provider =
2123 provider.map(|provider| RegisteredInlineCompletionProvider {
2124 _subscription: cx.observe(&provider, |this, _, cx| {
2125 if this.focus_handle.is_focused(cx) {
2126 this.update_visible_inline_completion(cx);
2127 }
2128 }),
2129 provider: Arc::new(provider),
2130 });
2131 self.refresh_inline_completion(false, cx);
2132 }
2133
2134 pub fn placeholder_text(&self, _cx: &mut WindowContext) -> Option<&str> {
2135 self.placeholder_text.as_deref()
2136 }
2137
2138 pub fn set_placeholder_text(
2139 &mut self,
2140 placeholder_text: impl Into<Arc<str>>,
2141 cx: &mut ViewContext<Self>,
2142 ) {
2143 let placeholder_text = Some(placeholder_text.into());
2144 if self.placeholder_text != placeholder_text {
2145 self.placeholder_text = placeholder_text;
2146 cx.notify();
2147 }
2148 }
2149
2150 pub fn set_cursor_shape(&mut self, cursor_shape: CursorShape, cx: &mut ViewContext<Self>) {
2151 self.cursor_shape = cursor_shape;
2152 cx.notify();
2153 }
2154
2155 pub fn set_current_line_highlight(
2156 &mut self,
2157 current_line_highlight: Option<CurrentLineHighlight>,
2158 ) {
2159 self.current_line_highlight = current_line_highlight;
2160 }
2161
2162 pub fn set_collapse_matches(&mut self, collapse_matches: bool) {
2163 self.collapse_matches = collapse_matches;
2164 }
2165
2166 pub fn range_for_match<T: std::marker::Copy>(&self, range: &Range<T>) -> Range<T> {
2167 if self.collapse_matches {
2168 return range.start..range.start;
2169 }
2170 range.clone()
2171 }
2172
2173 pub fn set_clip_at_line_ends(&mut self, clip: bool, cx: &mut ViewContext<Self>) {
2174 if self.display_map.read(cx).clip_at_line_ends != clip {
2175 self.display_map
2176 .update(cx, |map, _| map.clip_at_line_ends = clip);
2177 }
2178 }
2179
2180 pub fn set_keymap_context_layer<Tag: 'static>(
2181 &mut self,
2182 context: KeyContext,
2183 cx: &mut ViewContext<Self>,
2184 ) {
2185 self.keymap_context_layers
2186 .insert(TypeId::of::<Tag>(), context);
2187 cx.notify();
2188 }
2189
2190 pub fn remove_keymap_context_layer<Tag: 'static>(&mut self, cx: &mut ViewContext<Self>) {
2191 self.keymap_context_layers.remove(&TypeId::of::<Tag>());
2192 cx.notify();
2193 }
2194
2195 pub fn set_input_enabled(&mut self, input_enabled: bool) {
2196 self.input_enabled = input_enabled;
2197 }
2198
2199 pub fn set_autoindent(&mut self, autoindent: bool) {
2200 if autoindent {
2201 self.autoindent_mode = Some(AutoindentMode::EachLine);
2202 } else {
2203 self.autoindent_mode = None;
2204 }
2205 }
2206
2207 pub fn read_only(&self, cx: &AppContext) -> bool {
2208 self.read_only || self.buffer.read(cx).read_only()
2209 }
2210
2211 pub fn set_read_only(&mut self, read_only: bool) {
2212 self.read_only = read_only;
2213 }
2214
2215 pub fn set_use_autoclose(&mut self, autoclose: bool) {
2216 self.use_autoclose = autoclose;
2217 }
2218
2219 pub fn set_use_auto_surround(&mut self, auto_surround: bool) {
2220 self.use_auto_surround = auto_surround;
2221 }
2222
2223 pub fn set_auto_replace_emoji_shortcode(&mut self, auto_replace: bool) {
2224 self.auto_replace_emoji_shortcode = auto_replace;
2225 }
2226
2227 pub fn set_show_inline_completions(&mut self, show_inline_completions: bool) {
2228 self.show_inline_completions = show_inline_completions;
2229 }
2230
2231 pub fn set_use_modal_editing(&mut self, to: bool) {
2232 self.use_modal_editing = to;
2233 }
2234
2235 pub fn use_modal_editing(&self) -> bool {
2236 self.use_modal_editing
2237 }
2238
2239 fn selections_did_change(
2240 &mut self,
2241 local: bool,
2242 old_cursor_position: &Anchor,
2243 show_completions: bool,
2244 cx: &mut ViewContext<Self>,
2245 ) {
2246 // Copy selections to primary selection buffer
2247 #[cfg(target_os = "linux")]
2248 if local {
2249 let selections = self.selections.all::<usize>(cx);
2250 let buffer_handle = self.buffer.read(cx).read(cx);
2251
2252 let mut text = String::new();
2253 for (index, selection) in selections.iter().enumerate() {
2254 let text_for_selection = buffer_handle
2255 .text_for_range(selection.start..selection.end)
2256 .collect::<String>();
2257
2258 text.push_str(&text_for_selection);
2259 if index != selections.len() - 1 {
2260 text.push('\n');
2261 }
2262 }
2263
2264 if !text.is_empty() {
2265 cx.write_to_primary(ClipboardItem::new(text));
2266 }
2267 }
2268
2269 if self.focus_handle.is_focused(cx) && self.leader_peer_id.is_none() {
2270 self.buffer.update(cx, |buffer, cx| {
2271 buffer.set_active_selections(
2272 &self.selections.disjoint_anchors(),
2273 self.selections.line_mode,
2274 self.cursor_shape,
2275 cx,
2276 )
2277 });
2278 }
2279 let display_map = self
2280 .display_map
2281 .update(cx, |display_map, cx| display_map.snapshot(cx));
2282 let buffer = &display_map.buffer_snapshot;
2283 self.add_selections_state = None;
2284 self.select_next_state = None;
2285 self.select_prev_state = None;
2286 self.select_larger_syntax_node_stack.clear();
2287 self.invalidate_autoclose_regions(&self.selections.disjoint_anchors(), buffer);
2288 self.snippet_stack
2289 .invalidate(&self.selections.disjoint_anchors(), buffer);
2290 self.take_rename(false, cx);
2291
2292 let new_cursor_position = self.selections.newest_anchor().head();
2293
2294 self.push_to_nav_history(
2295 *old_cursor_position,
2296 Some(new_cursor_position.to_point(buffer)),
2297 cx,
2298 );
2299
2300 if local {
2301 let new_cursor_position = self.selections.newest_anchor().head();
2302 let mut context_menu = self.context_menu.write();
2303 let completion_menu = match context_menu.as_ref() {
2304 Some(ContextMenu::Completions(menu)) => Some(menu),
2305
2306 _ => {
2307 *context_menu = None;
2308 None
2309 }
2310 };
2311
2312 if let Some(completion_menu) = completion_menu {
2313 let cursor_position = new_cursor_position.to_offset(buffer);
2314 let (word_range, kind) = buffer.surrounding_word(completion_menu.initial_position);
2315 if kind == Some(CharKind::Word)
2316 && word_range.to_inclusive().contains(&cursor_position)
2317 {
2318 let mut completion_menu = completion_menu.clone();
2319 drop(context_menu);
2320
2321 let query = Self::completion_query(buffer, cursor_position);
2322 cx.spawn(move |this, mut cx| async move {
2323 completion_menu
2324 .filter(query.as_deref(), cx.background_executor().clone())
2325 .await;
2326
2327 this.update(&mut cx, |this, cx| {
2328 let mut context_menu = this.context_menu.write();
2329 let Some(ContextMenu::Completions(menu)) = context_menu.as_ref() else {
2330 return;
2331 };
2332
2333 if menu.id > completion_menu.id {
2334 return;
2335 }
2336
2337 *context_menu = Some(ContextMenu::Completions(completion_menu));
2338 drop(context_menu);
2339 cx.notify();
2340 })
2341 })
2342 .detach();
2343
2344 if show_completions {
2345 self.show_completions(&ShowCompletions { trigger: None }, cx);
2346 }
2347 } else {
2348 drop(context_menu);
2349 self.hide_context_menu(cx);
2350 }
2351 } else {
2352 drop(context_menu);
2353 }
2354
2355 hide_hover(self, cx);
2356
2357 if old_cursor_position.to_display_point(&display_map).row()
2358 != new_cursor_position.to_display_point(&display_map).row()
2359 {
2360 self.available_code_actions.take();
2361 }
2362 self.refresh_code_actions(cx);
2363 self.refresh_document_highlights(cx);
2364 refresh_matching_bracket_highlights(self, cx);
2365 self.discard_inline_completion(false, cx);
2366 linked_editing_ranges::refresh_linked_ranges(self, cx);
2367 if self.git_blame_inline_enabled {
2368 self.start_inline_blame_timer(cx);
2369 }
2370 }
2371
2372 self.blink_manager.update(cx, BlinkManager::pause_blinking);
2373 cx.emit(EditorEvent::SelectionsChanged { local });
2374
2375 if self.selections.disjoint_anchors().len() == 1 {
2376 cx.emit(SearchEvent::ActiveMatchChanged)
2377 }
2378 cx.notify();
2379 }
2380
2381 pub fn change_selections<R>(
2382 &mut self,
2383 autoscroll: Option<Autoscroll>,
2384 cx: &mut ViewContext<Self>,
2385 change: impl FnOnce(&mut MutableSelectionsCollection<'_>) -> R,
2386 ) -> R {
2387 self.change_selections_inner(autoscroll, true, cx, change)
2388 }
2389
2390 pub fn change_selections_inner<R>(
2391 &mut self,
2392 autoscroll: Option<Autoscroll>,
2393 request_completions: bool,
2394 cx: &mut ViewContext<Self>,
2395 change: impl FnOnce(&mut MutableSelectionsCollection<'_>) -> R,
2396 ) -> R {
2397 let old_cursor_position = self.selections.newest_anchor().head();
2398 self.push_to_selection_history();
2399
2400 let (changed, result) = self.selections.change_with(cx, change);
2401
2402 if changed {
2403 if let Some(autoscroll) = autoscroll {
2404 self.request_autoscroll(autoscroll, cx);
2405 }
2406 self.selections_did_change(true, &old_cursor_position, request_completions, cx);
2407 }
2408
2409 result
2410 }
2411
2412 pub fn edit<I, S, T>(&mut self, edits: I, cx: &mut ViewContext<Self>)
2413 where
2414 I: IntoIterator<Item = (Range<S>, T)>,
2415 S: ToOffset,
2416 T: Into<Arc<str>>,
2417 {
2418 if self.read_only(cx) {
2419 return;
2420 }
2421
2422 self.buffer
2423 .update(cx, |buffer, cx| buffer.edit(edits, None, cx));
2424 }
2425
2426 pub fn edit_with_autoindent<I, S, T>(&mut self, edits: I, cx: &mut ViewContext<Self>)
2427 where
2428 I: IntoIterator<Item = (Range<S>, T)>,
2429 S: ToOffset,
2430 T: Into<Arc<str>>,
2431 {
2432 if self.read_only(cx) {
2433 return;
2434 }
2435
2436 self.buffer.update(cx, |buffer, cx| {
2437 buffer.edit(edits, self.autoindent_mode.clone(), cx)
2438 });
2439 }
2440
2441 pub fn edit_with_block_indent<I, S, T>(
2442 &mut self,
2443 edits: I,
2444 original_indent_columns: Vec<u32>,
2445 cx: &mut ViewContext<Self>,
2446 ) where
2447 I: IntoIterator<Item = (Range<S>, T)>,
2448 S: ToOffset,
2449 T: Into<Arc<str>>,
2450 {
2451 if self.read_only(cx) {
2452 return;
2453 }
2454
2455 self.buffer.update(cx, |buffer, cx| {
2456 buffer.edit(
2457 edits,
2458 Some(AutoindentMode::Block {
2459 original_indent_columns,
2460 }),
2461 cx,
2462 )
2463 });
2464 }
2465
2466 fn select(&mut self, phase: SelectPhase, cx: &mut ViewContext<Self>) {
2467 self.hide_context_menu(cx);
2468
2469 match phase {
2470 SelectPhase::Begin {
2471 position,
2472 add,
2473 click_count,
2474 } => self.begin_selection(position, add, click_count, cx),
2475 SelectPhase::BeginColumnar {
2476 position,
2477 goal_column,
2478 reset,
2479 } => self.begin_columnar_selection(position, goal_column, reset, cx),
2480 SelectPhase::Extend {
2481 position,
2482 click_count,
2483 } => self.extend_selection(position, click_count, cx),
2484 SelectPhase::Update {
2485 position,
2486 goal_column,
2487 scroll_delta,
2488 } => self.update_selection(position, goal_column, scroll_delta, cx),
2489 SelectPhase::End => self.end_selection(cx),
2490 }
2491 }
2492
2493 fn extend_selection(
2494 &mut self,
2495 position: DisplayPoint,
2496 click_count: usize,
2497 cx: &mut ViewContext<Self>,
2498 ) {
2499 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
2500 let tail = self.selections.newest::<usize>(cx).tail();
2501 self.begin_selection(position, false, click_count, cx);
2502
2503 let position = position.to_offset(&display_map, Bias::Left);
2504 let tail_anchor = display_map.buffer_snapshot.anchor_before(tail);
2505
2506 let mut pending_selection = self
2507 .selections
2508 .pending_anchor()
2509 .expect("extend_selection not called with pending selection");
2510 if position >= tail {
2511 pending_selection.start = tail_anchor;
2512 } else {
2513 pending_selection.end = tail_anchor;
2514 pending_selection.reversed = true;
2515 }
2516
2517 let mut pending_mode = self.selections.pending_mode().unwrap();
2518 match &mut pending_mode {
2519 SelectMode::Word(range) | SelectMode::Line(range) => *range = tail_anchor..tail_anchor,
2520 _ => {}
2521 }
2522
2523 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
2524 s.set_pending(pending_selection, pending_mode)
2525 });
2526 }
2527
2528 fn begin_selection(
2529 &mut self,
2530 position: DisplayPoint,
2531 add: bool,
2532 click_count: usize,
2533 cx: &mut ViewContext<Self>,
2534 ) {
2535 if !self.focus_handle.is_focused(cx) {
2536 self.last_focused_descendant = None;
2537 cx.focus(&self.focus_handle);
2538 }
2539
2540 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
2541 let buffer = &display_map.buffer_snapshot;
2542 let newest_selection = self.selections.newest_anchor().clone();
2543 let position = display_map.clip_point(position, Bias::Left);
2544
2545 let start;
2546 let end;
2547 let mode;
2548 let auto_scroll;
2549 match click_count {
2550 1 => {
2551 start = buffer.anchor_before(position.to_point(&display_map));
2552 end = start;
2553 mode = SelectMode::Character;
2554 auto_scroll = true;
2555 }
2556 2 => {
2557 let range = movement::surrounding_word(&display_map, position);
2558 start = buffer.anchor_before(range.start.to_point(&display_map));
2559 end = buffer.anchor_before(range.end.to_point(&display_map));
2560 mode = SelectMode::Word(start..end);
2561 auto_scroll = true;
2562 }
2563 3 => {
2564 let position = display_map
2565 .clip_point(position, Bias::Left)
2566 .to_point(&display_map);
2567 let line_start = display_map.prev_line_boundary(position).0;
2568 let next_line_start = buffer.clip_point(
2569 display_map.next_line_boundary(position).0 + Point::new(1, 0),
2570 Bias::Left,
2571 );
2572 start = buffer.anchor_before(line_start);
2573 end = buffer.anchor_before(next_line_start);
2574 mode = SelectMode::Line(start..end);
2575 auto_scroll = true;
2576 }
2577 _ => {
2578 start = buffer.anchor_before(0);
2579 end = buffer.anchor_before(buffer.len());
2580 mode = SelectMode::All;
2581 auto_scroll = false;
2582 }
2583 }
2584
2585 let point_to_delete: Option<usize> = {
2586 let selected_points: Vec<Selection<Point>> =
2587 self.selections.disjoint_in_range(start..end, cx);
2588
2589 if !add || click_count > 1 {
2590 None
2591 } else if selected_points.len() > 0 {
2592 Some(selected_points[0].id)
2593 } else {
2594 let clicked_point_already_selected =
2595 self.selections.disjoint.iter().find(|selection| {
2596 selection.start.to_point(buffer) == start.to_point(buffer)
2597 || selection.end.to_point(buffer) == end.to_point(buffer)
2598 });
2599
2600 if let Some(selection) = clicked_point_already_selected {
2601 Some(selection.id)
2602 } else {
2603 None
2604 }
2605 }
2606 };
2607
2608 let selections_count = self.selections.count();
2609
2610 self.change_selections(auto_scroll.then(|| Autoscroll::newest()), cx, |s| {
2611 if let Some(point_to_delete) = point_to_delete {
2612 s.delete(point_to_delete);
2613
2614 if selections_count == 1 {
2615 s.set_pending_anchor_range(start..end, mode);
2616 }
2617 } else {
2618 if !add {
2619 s.clear_disjoint();
2620 } else if click_count > 1 {
2621 s.delete(newest_selection.id)
2622 }
2623
2624 s.set_pending_anchor_range(start..end, mode);
2625 }
2626 });
2627 }
2628
2629 fn begin_columnar_selection(
2630 &mut self,
2631 position: DisplayPoint,
2632 goal_column: u32,
2633 reset: bool,
2634 cx: &mut ViewContext<Self>,
2635 ) {
2636 if !self.focus_handle.is_focused(cx) {
2637 self.last_focused_descendant = None;
2638 cx.focus(&self.focus_handle);
2639 }
2640
2641 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
2642
2643 if reset {
2644 let pointer_position = display_map
2645 .buffer_snapshot
2646 .anchor_before(position.to_point(&display_map));
2647
2648 self.change_selections(Some(Autoscroll::newest()), cx, |s| {
2649 s.clear_disjoint();
2650 s.set_pending_anchor_range(
2651 pointer_position..pointer_position,
2652 SelectMode::Character,
2653 );
2654 });
2655 }
2656
2657 let tail = self.selections.newest::<Point>(cx).tail();
2658 self.columnar_selection_tail = Some(display_map.buffer_snapshot.anchor_before(tail));
2659
2660 if !reset {
2661 self.select_columns(
2662 tail.to_display_point(&display_map),
2663 position,
2664 goal_column,
2665 &display_map,
2666 cx,
2667 );
2668 }
2669 }
2670
2671 fn update_selection(
2672 &mut self,
2673 position: DisplayPoint,
2674 goal_column: u32,
2675 scroll_delta: gpui::Point<f32>,
2676 cx: &mut ViewContext<Self>,
2677 ) {
2678 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
2679
2680 if let Some(tail) = self.columnar_selection_tail.as_ref() {
2681 let tail = tail.to_display_point(&display_map);
2682 self.select_columns(tail, position, goal_column, &display_map, cx);
2683 } else if let Some(mut pending) = self.selections.pending_anchor() {
2684 let buffer = self.buffer.read(cx).snapshot(cx);
2685 let head;
2686 let tail;
2687 let mode = self.selections.pending_mode().unwrap();
2688 match &mode {
2689 SelectMode::Character => {
2690 head = position.to_point(&display_map);
2691 tail = pending.tail().to_point(&buffer);
2692 }
2693 SelectMode::Word(original_range) => {
2694 let original_display_range = original_range.start.to_display_point(&display_map)
2695 ..original_range.end.to_display_point(&display_map);
2696 let original_buffer_range = original_display_range.start.to_point(&display_map)
2697 ..original_display_range.end.to_point(&display_map);
2698 if movement::is_inside_word(&display_map, position)
2699 || original_display_range.contains(&position)
2700 {
2701 let word_range = movement::surrounding_word(&display_map, position);
2702 if word_range.start < original_display_range.start {
2703 head = word_range.start.to_point(&display_map);
2704 } else {
2705 head = word_range.end.to_point(&display_map);
2706 }
2707 } else {
2708 head = position.to_point(&display_map);
2709 }
2710
2711 if head <= original_buffer_range.start {
2712 tail = original_buffer_range.end;
2713 } else {
2714 tail = original_buffer_range.start;
2715 }
2716 }
2717 SelectMode::Line(original_range) => {
2718 let original_range = original_range.to_point(&display_map.buffer_snapshot);
2719
2720 let position = display_map
2721 .clip_point(position, Bias::Left)
2722 .to_point(&display_map);
2723 let line_start = display_map.prev_line_boundary(position).0;
2724 let next_line_start = buffer.clip_point(
2725 display_map.next_line_boundary(position).0 + Point::new(1, 0),
2726 Bias::Left,
2727 );
2728
2729 if line_start < original_range.start {
2730 head = line_start
2731 } else {
2732 head = next_line_start
2733 }
2734
2735 if head <= original_range.start {
2736 tail = original_range.end;
2737 } else {
2738 tail = original_range.start;
2739 }
2740 }
2741 SelectMode::All => {
2742 return;
2743 }
2744 };
2745
2746 if head < tail {
2747 pending.start = buffer.anchor_before(head);
2748 pending.end = buffer.anchor_before(tail);
2749 pending.reversed = true;
2750 } else {
2751 pending.start = buffer.anchor_before(tail);
2752 pending.end = buffer.anchor_before(head);
2753 pending.reversed = false;
2754 }
2755
2756 self.change_selections(None, cx, |s| {
2757 s.set_pending(pending, mode);
2758 });
2759 } else {
2760 log::error!("update_selection dispatched with no pending selection");
2761 return;
2762 }
2763
2764 self.apply_scroll_delta(scroll_delta, cx);
2765 cx.notify();
2766 }
2767
2768 fn end_selection(&mut self, cx: &mut ViewContext<Self>) {
2769 self.columnar_selection_tail.take();
2770 if self.selections.pending_anchor().is_some() {
2771 let selections = self.selections.all::<usize>(cx);
2772 self.change_selections(None, cx, |s| {
2773 s.select(selections);
2774 s.clear_pending();
2775 });
2776 }
2777 }
2778
2779 fn select_columns(
2780 &mut self,
2781 tail: DisplayPoint,
2782 head: DisplayPoint,
2783 goal_column: u32,
2784 display_map: &DisplaySnapshot,
2785 cx: &mut ViewContext<Self>,
2786 ) {
2787 let start_row = cmp::min(tail.row(), head.row());
2788 let end_row = cmp::max(tail.row(), head.row());
2789 let start_column = cmp::min(tail.column(), goal_column);
2790 let end_column = cmp::max(tail.column(), goal_column);
2791 let reversed = start_column < tail.column();
2792
2793 let selection_ranges = (start_row.0..=end_row.0)
2794 .map(DisplayRow)
2795 .filter_map(|row| {
2796 if start_column <= display_map.line_len(row) && !display_map.is_block_line(row) {
2797 let start = display_map
2798 .clip_point(DisplayPoint::new(row, start_column), Bias::Left)
2799 .to_point(display_map);
2800 let end = display_map
2801 .clip_point(DisplayPoint::new(row, end_column), Bias::Right)
2802 .to_point(display_map);
2803 if reversed {
2804 Some(end..start)
2805 } else {
2806 Some(start..end)
2807 }
2808 } else {
2809 None
2810 }
2811 })
2812 .collect::<Vec<_>>();
2813
2814 self.change_selections(None, cx, |s| {
2815 s.select_ranges(selection_ranges);
2816 });
2817 cx.notify();
2818 }
2819
2820 pub fn has_pending_nonempty_selection(&self) -> bool {
2821 let pending_nonempty_selection = match self.selections.pending_anchor() {
2822 Some(Selection { start, end, .. }) => start != end,
2823 None => false,
2824 };
2825
2826 pending_nonempty_selection
2827 || (self.columnar_selection_tail.is_some() && self.selections.disjoint.len() > 1)
2828 }
2829
2830 pub fn has_pending_selection(&self) -> bool {
2831 self.selections.pending_anchor().is_some() || self.columnar_selection_tail.is_some()
2832 }
2833
2834 pub fn cancel(&mut self, _: &Cancel, cx: &mut ViewContext<Self>) {
2835 self.clear_expanded_diff_hunks(cx);
2836 if self.dismiss_menus_and_popups(true, cx) {
2837 return;
2838 }
2839
2840 if self.mode == EditorMode::Full {
2841 if self.change_selections(Some(Autoscroll::fit()), cx, |s| s.try_cancel()) {
2842 return;
2843 }
2844 }
2845
2846 cx.propagate();
2847 }
2848
2849 pub fn dismiss_menus_and_popups(
2850 &mut self,
2851 should_report_inline_completion_event: bool,
2852 cx: &mut ViewContext<Self>,
2853 ) -> bool {
2854 if self.take_rename(false, cx).is_some() {
2855 return true;
2856 }
2857
2858 if hide_hover(self, cx) {
2859 return true;
2860 }
2861
2862 if self.hide_context_menu(cx).is_some() {
2863 return true;
2864 }
2865
2866 if self.discard_inline_completion(should_report_inline_completion_event, cx) {
2867 return true;
2868 }
2869
2870 if self.snippet_stack.pop().is_some() {
2871 return true;
2872 }
2873
2874 if self.mode == EditorMode::Full {
2875 if self.active_diagnostics.is_some() {
2876 self.dismiss_diagnostics(cx);
2877 return true;
2878 }
2879 }
2880
2881 false
2882 }
2883
2884 fn linked_editing_ranges_for(
2885 &self,
2886 selection: Range<text::Anchor>,
2887 cx: &AppContext,
2888 ) -> Option<HashMap<Model<Buffer>, Vec<Range<text::Anchor>>>> {
2889 if self.linked_edit_ranges.is_empty() {
2890 return None;
2891 }
2892 let ((base_range, linked_ranges), buffer_snapshot, buffer) =
2893 selection.end.buffer_id.and_then(|end_buffer_id| {
2894 if selection.start.buffer_id != Some(end_buffer_id) {
2895 return None;
2896 }
2897 let buffer = self.buffer.read(cx).buffer(end_buffer_id)?;
2898 let snapshot = buffer.read(cx).snapshot();
2899 self.linked_edit_ranges
2900 .get(end_buffer_id, selection.start..selection.end, &snapshot)
2901 .map(|ranges| (ranges, snapshot, buffer))
2902 })?;
2903 use text::ToOffset as TO;
2904 // find offset from the start of current range to current cursor position
2905 let start_byte_offset = TO::to_offset(&base_range.start, &buffer_snapshot);
2906
2907 let start_offset = TO::to_offset(&selection.start, &buffer_snapshot);
2908 let start_difference = start_offset - start_byte_offset;
2909 let end_offset = TO::to_offset(&selection.end, &buffer_snapshot);
2910 let end_difference = end_offset - start_byte_offset;
2911 // Current range has associated linked ranges.
2912 let mut linked_edits = HashMap::<_, Vec<_>>::default();
2913 for range in linked_ranges.iter() {
2914 let start_offset = TO::to_offset(&range.start, &buffer_snapshot);
2915 let end_offset = start_offset + end_difference;
2916 let start_offset = start_offset + start_difference;
2917 let start = buffer_snapshot.anchor_after(start_offset);
2918 let end = buffer_snapshot.anchor_after(end_offset);
2919 linked_edits
2920 .entry(buffer.clone())
2921 .or_default()
2922 .push(start..end);
2923 }
2924 Some(linked_edits)
2925 }
2926
2927 pub fn handle_input(&mut self, text: &str, cx: &mut ViewContext<Self>) {
2928 let text: Arc<str> = text.into();
2929
2930 if self.read_only(cx) {
2931 return;
2932 }
2933
2934 let selections = self.selections.all_adjusted(cx);
2935 let mut brace_inserted = false;
2936 let mut edits = Vec::new();
2937 let mut linked_edits = HashMap::<_, Vec<_>>::default();
2938 let mut new_selections = Vec::with_capacity(selections.len());
2939 let mut new_autoclose_regions = Vec::new();
2940 let snapshot = self.buffer.read(cx).read(cx);
2941
2942 for (selection, autoclose_region) in
2943 self.selections_with_autoclose_regions(selections, &snapshot)
2944 {
2945 if let Some(scope) = snapshot.language_scope_at(selection.head()) {
2946 // Determine if the inserted text matches the opening or closing
2947 // bracket of any of this language's bracket pairs.
2948 let mut bracket_pair = None;
2949 let mut is_bracket_pair_start = false;
2950 let mut is_bracket_pair_end = false;
2951 if !text.is_empty() {
2952 // `text` can be empty when a user is using IME (e.g. Chinese Wubi Simplified)
2953 // and they are removing the character that triggered IME popup.
2954 for (pair, enabled) in scope.brackets() {
2955 if !pair.close && !pair.surround {
2956 continue;
2957 }
2958
2959 if enabled && pair.start.ends_with(text.as_ref()) {
2960 bracket_pair = Some(pair.clone());
2961 is_bracket_pair_start = true;
2962 break;
2963 }
2964 if pair.end.as_str() == text.as_ref() {
2965 bracket_pair = Some(pair.clone());
2966 is_bracket_pair_end = true;
2967 break;
2968 }
2969 }
2970 }
2971
2972 if let Some(bracket_pair) = bracket_pair {
2973 let snapshot_settings = snapshot.settings_at(selection.start, cx);
2974 let autoclose = self.use_autoclose && snapshot_settings.use_autoclose;
2975 let auto_surround =
2976 self.use_auto_surround && snapshot_settings.use_auto_surround;
2977 if selection.is_empty() {
2978 if is_bracket_pair_start {
2979 let prefix_len = bracket_pair.start.len() - text.len();
2980
2981 // If the inserted text is a suffix of an opening bracket and the
2982 // selection is preceded by the rest of the opening bracket, then
2983 // insert the closing bracket.
2984 let following_text_allows_autoclose = snapshot
2985 .chars_at(selection.start)
2986 .next()
2987 .map_or(true, |c| scope.should_autoclose_before(c));
2988 let preceding_text_matches_prefix = prefix_len == 0
2989 || (selection.start.column >= (prefix_len as u32)
2990 && snapshot.contains_str_at(
2991 Point::new(
2992 selection.start.row,
2993 selection.start.column - (prefix_len as u32),
2994 ),
2995 &bracket_pair.start[..prefix_len],
2996 ));
2997 if autoclose
2998 && bracket_pair.close
2999 && following_text_allows_autoclose
3000 && preceding_text_matches_prefix
3001 {
3002 let anchor = snapshot.anchor_before(selection.end);
3003 new_selections.push((selection.map(|_| anchor), text.len()));
3004 new_autoclose_regions.push((
3005 anchor,
3006 text.len(),
3007 selection.id,
3008 bracket_pair.clone(),
3009 ));
3010 edits.push((
3011 selection.range(),
3012 format!("{}{}", text, bracket_pair.end).into(),
3013 ));
3014 brace_inserted = true;
3015 continue;
3016 }
3017 }
3018
3019 if let Some(region) = autoclose_region {
3020 // If the selection is followed by an auto-inserted closing bracket,
3021 // then don't insert that closing bracket again; just move the selection
3022 // past the closing bracket.
3023 let should_skip = selection.end == region.range.end.to_point(&snapshot)
3024 && text.as_ref() == region.pair.end.as_str();
3025 if should_skip {
3026 let anchor = snapshot.anchor_after(selection.end);
3027 new_selections
3028 .push((selection.map(|_| anchor), region.pair.end.len()));
3029 continue;
3030 }
3031 }
3032
3033 let always_treat_brackets_as_autoclosed = snapshot
3034 .settings_at(selection.start, cx)
3035 .always_treat_brackets_as_autoclosed;
3036 if always_treat_brackets_as_autoclosed
3037 && is_bracket_pair_end
3038 && snapshot.contains_str_at(selection.end, text.as_ref())
3039 {
3040 // Otherwise, when `always_treat_brackets_as_autoclosed` is set to `true
3041 // and the inserted text is a closing bracket and the selection is followed
3042 // by the closing bracket then move the selection past the closing bracket.
3043 let anchor = snapshot.anchor_after(selection.end);
3044 new_selections.push((selection.map(|_| anchor), text.len()));
3045 continue;
3046 }
3047 }
3048 // If an opening bracket is 1 character long and is typed while
3049 // text is selected, then surround that text with the bracket pair.
3050 else if auto_surround
3051 && bracket_pair.surround
3052 && is_bracket_pair_start
3053 && bracket_pair.start.chars().count() == 1
3054 {
3055 edits.push((selection.start..selection.start, text.clone()));
3056 edits.push((
3057 selection.end..selection.end,
3058 bracket_pair.end.as_str().into(),
3059 ));
3060 brace_inserted = true;
3061 new_selections.push((
3062 Selection {
3063 id: selection.id,
3064 start: snapshot.anchor_after(selection.start),
3065 end: snapshot.anchor_before(selection.end),
3066 reversed: selection.reversed,
3067 goal: selection.goal,
3068 },
3069 0,
3070 ));
3071 continue;
3072 }
3073 }
3074 }
3075
3076 if self.auto_replace_emoji_shortcode
3077 && selection.is_empty()
3078 && text.as_ref().ends_with(':')
3079 {
3080 if let Some(possible_emoji_short_code) =
3081 Self::find_possible_emoji_shortcode_at_position(&snapshot, selection.start)
3082 {
3083 if !possible_emoji_short_code.is_empty() {
3084 if let Some(emoji) = emojis::get_by_shortcode(&possible_emoji_short_code) {
3085 let emoji_shortcode_start = Point::new(
3086 selection.start.row,
3087 selection.start.column - possible_emoji_short_code.len() as u32 - 1,
3088 );
3089
3090 // Remove shortcode from buffer
3091 edits.push((
3092 emoji_shortcode_start..selection.start,
3093 "".to_string().into(),
3094 ));
3095 new_selections.push((
3096 Selection {
3097 id: selection.id,
3098 start: snapshot.anchor_after(emoji_shortcode_start),
3099 end: snapshot.anchor_before(selection.start),
3100 reversed: selection.reversed,
3101 goal: selection.goal,
3102 },
3103 0,
3104 ));
3105
3106 // Insert emoji
3107 let selection_start_anchor = snapshot.anchor_after(selection.start);
3108 new_selections.push((selection.map(|_| selection_start_anchor), 0));
3109 edits.push((selection.start..selection.end, emoji.to_string().into()));
3110
3111 continue;
3112 }
3113 }
3114 }
3115 }
3116
3117 // If not handling any auto-close operation, then just replace the selected
3118 // text with the given input and move the selection to the end of the
3119 // newly inserted text.
3120 let anchor = snapshot.anchor_after(selection.end);
3121 if !self.linked_edit_ranges.is_empty() {
3122 let start_anchor = snapshot.anchor_before(selection.start);
3123 if let Some(ranges) =
3124 self.linked_editing_ranges_for(start_anchor.text_anchor..anchor.text_anchor, cx)
3125 {
3126 for (buffer, edits) in ranges {
3127 linked_edits
3128 .entry(buffer.clone())
3129 .or_default()
3130 .extend(edits.into_iter().map(|range| (range, text.clone())));
3131 }
3132 }
3133 }
3134
3135 new_selections.push((selection.map(|_| anchor), 0));
3136 edits.push((selection.start..selection.end, text.clone()));
3137 }
3138
3139 drop(snapshot);
3140
3141 self.transact(cx, |this, cx| {
3142 this.buffer.update(cx, |buffer, cx| {
3143 buffer.edit(edits, this.autoindent_mode.clone(), cx);
3144 });
3145 for (buffer, edits) in linked_edits {
3146 buffer.update(cx, |buffer, cx| {
3147 let snapshot = buffer.snapshot();
3148 let edits = edits
3149 .into_iter()
3150 .map(|(range, text)| {
3151 use text::ToPoint as TP;
3152 let end_point = TP::to_point(&range.end, &snapshot);
3153 let start_point = TP::to_point(&range.start, &snapshot);
3154 (start_point..end_point, text)
3155 })
3156 .sorted_by_key(|(range, _)| range.start)
3157 .collect::<Vec<_>>();
3158 buffer.edit(edits, None, cx);
3159 })
3160 }
3161 let new_anchor_selections = new_selections.iter().map(|e| &e.0);
3162 let new_selection_deltas = new_selections.iter().map(|e| e.1);
3163 let snapshot = this.buffer.read(cx).read(cx);
3164 let new_selections = resolve_multiple::<usize, _>(new_anchor_selections, &snapshot)
3165 .zip(new_selection_deltas)
3166 .map(|(selection, delta)| Selection {
3167 id: selection.id,
3168 start: selection.start + delta,
3169 end: selection.end + delta,
3170 reversed: selection.reversed,
3171 goal: SelectionGoal::None,
3172 })
3173 .collect::<Vec<_>>();
3174
3175 let mut i = 0;
3176 for (position, delta, selection_id, pair) in new_autoclose_regions {
3177 let position = position.to_offset(&snapshot) + delta;
3178 let start = snapshot.anchor_before(position);
3179 let end = snapshot.anchor_after(position);
3180 while let Some(existing_state) = this.autoclose_regions.get(i) {
3181 match existing_state.range.start.cmp(&start, &snapshot) {
3182 Ordering::Less => i += 1,
3183 Ordering::Greater => break,
3184 Ordering::Equal => match end.cmp(&existing_state.range.end, &snapshot) {
3185 Ordering::Less => i += 1,
3186 Ordering::Equal => break,
3187 Ordering::Greater => break,
3188 },
3189 }
3190 }
3191 this.autoclose_regions.insert(
3192 i,
3193 AutocloseRegion {
3194 selection_id,
3195 range: start..end,
3196 pair,
3197 },
3198 );
3199 }
3200
3201 drop(snapshot);
3202 let had_active_inline_completion = this.has_active_inline_completion(cx);
3203 this.change_selections_inner(Some(Autoscroll::fit()), false, cx, |s| {
3204 s.select(new_selections)
3205 });
3206
3207 if !brace_inserted && EditorSettings::get_global(cx).use_on_type_format {
3208 if let Some(on_type_format_task) =
3209 this.trigger_on_type_formatting(text.to_string(), cx)
3210 {
3211 on_type_format_task.detach_and_log_err(cx);
3212 }
3213 }
3214
3215 let trigger_in_words = !had_active_inline_completion;
3216 this.trigger_completion_on_input(&text, trigger_in_words, cx);
3217 linked_editing_ranges::refresh_linked_ranges(this, cx);
3218 this.refresh_inline_completion(true, cx);
3219 });
3220 }
3221
3222 fn find_possible_emoji_shortcode_at_position(
3223 snapshot: &MultiBufferSnapshot,
3224 position: Point,
3225 ) -> Option<String> {
3226 let mut chars = Vec::new();
3227 let mut found_colon = false;
3228 for char in snapshot.reversed_chars_at(position).take(100) {
3229 // Found a possible emoji shortcode in the middle of the buffer
3230 if found_colon {
3231 if char.is_whitespace() {
3232 chars.reverse();
3233 return Some(chars.iter().collect());
3234 }
3235 // If the previous character is not a whitespace, we are in the middle of a word
3236 // and we only want to complete the shortcode if the word is made up of other emojis
3237 let mut containing_word = String::new();
3238 for ch in snapshot
3239 .reversed_chars_at(position)
3240 .skip(chars.len() + 1)
3241 .take(100)
3242 {
3243 if ch.is_whitespace() {
3244 break;
3245 }
3246 containing_word.push(ch);
3247 }
3248 let containing_word = containing_word.chars().rev().collect::<String>();
3249 if util::word_consists_of_emojis(containing_word.as_str()) {
3250 chars.reverse();
3251 return Some(chars.iter().collect());
3252 }
3253 }
3254
3255 if char.is_whitespace() || !char.is_ascii() {
3256 return None;
3257 }
3258 if char == ':' {
3259 found_colon = true;
3260 } else {
3261 chars.push(char);
3262 }
3263 }
3264 // Found a possible emoji shortcode at the beginning of the buffer
3265 chars.reverse();
3266 Some(chars.iter().collect())
3267 }
3268
3269 pub fn newline(&mut self, _: &Newline, cx: &mut ViewContext<Self>) {
3270 self.transact(cx, |this, cx| {
3271 let (edits, selection_fixup_info): (Vec<_>, Vec<_>) = {
3272 let selections = this.selections.all::<usize>(cx);
3273 let multi_buffer = this.buffer.read(cx);
3274 let buffer = multi_buffer.snapshot(cx);
3275 selections
3276 .iter()
3277 .map(|selection| {
3278 let start_point = selection.start.to_point(&buffer);
3279 let mut indent =
3280 buffer.indent_size_for_line(MultiBufferRow(start_point.row));
3281 indent.len = cmp::min(indent.len, start_point.column);
3282 let start = selection.start;
3283 let end = selection.end;
3284 let selection_is_empty = start == end;
3285 let language_scope = buffer.language_scope_at(start);
3286 let (comment_delimiter, insert_extra_newline) = if let Some(language) =
3287 &language_scope
3288 {
3289 let leading_whitespace_len = buffer
3290 .reversed_chars_at(start)
3291 .take_while(|c| c.is_whitespace() && *c != '\n')
3292 .map(|c| c.len_utf8())
3293 .sum::<usize>();
3294
3295 let trailing_whitespace_len = buffer
3296 .chars_at(end)
3297 .take_while(|c| c.is_whitespace() && *c != '\n')
3298 .map(|c| c.len_utf8())
3299 .sum::<usize>();
3300
3301 let insert_extra_newline =
3302 language.brackets().any(|(pair, enabled)| {
3303 let pair_start = pair.start.trim_end();
3304 let pair_end = pair.end.trim_start();
3305
3306 enabled
3307 && pair.newline
3308 && buffer.contains_str_at(
3309 end + trailing_whitespace_len,
3310 pair_end,
3311 )
3312 && buffer.contains_str_at(
3313 (start - leading_whitespace_len)
3314 .saturating_sub(pair_start.len()),
3315 pair_start,
3316 )
3317 });
3318
3319 // Comment extension on newline is allowed only for cursor selections
3320 let comment_delimiter = maybe!({
3321 if !selection_is_empty {
3322 return None;
3323 }
3324
3325 if !multi_buffer.settings_at(0, cx).extend_comment_on_newline {
3326 return None;
3327 }
3328
3329 let delimiters = language.line_comment_prefixes();
3330 let max_len_of_delimiter =
3331 delimiters.iter().map(|delimiter| delimiter.len()).max()?;
3332 let (snapshot, range) =
3333 buffer.buffer_line_for_row(MultiBufferRow(start_point.row))?;
3334
3335 let mut index_of_first_non_whitespace = 0;
3336 let comment_candidate = snapshot
3337 .chars_for_range(range)
3338 .skip_while(|c| {
3339 let should_skip = c.is_whitespace();
3340 if should_skip {
3341 index_of_first_non_whitespace += 1;
3342 }
3343 should_skip
3344 })
3345 .take(max_len_of_delimiter)
3346 .collect::<String>();
3347 let comment_prefix = delimiters.iter().find(|comment_prefix| {
3348 comment_candidate.starts_with(comment_prefix.as_ref())
3349 })?;
3350 let cursor_is_placed_after_comment_marker =
3351 index_of_first_non_whitespace + comment_prefix.len()
3352 <= start_point.column as usize;
3353 if cursor_is_placed_after_comment_marker {
3354 Some(comment_prefix.clone())
3355 } else {
3356 None
3357 }
3358 });
3359 (comment_delimiter, insert_extra_newline)
3360 } else {
3361 (None, false)
3362 };
3363
3364 let capacity_for_delimiter = comment_delimiter
3365 .as_deref()
3366 .map(str::len)
3367 .unwrap_or_default();
3368 let mut new_text =
3369 String::with_capacity(1 + capacity_for_delimiter + indent.len as usize);
3370 new_text.push_str("\n");
3371 new_text.extend(indent.chars());
3372 if let Some(delimiter) = &comment_delimiter {
3373 new_text.push_str(&delimiter);
3374 }
3375 if insert_extra_newline {
3376 new_text = new_text.repeat(2);
3377 }
3378
3379 let anchor = buffer.anchor_after(end);
3380 let new_selection = selection.map(|_| anchor);
3381 (
3382 (start..end, new_text),
3383 (insert_extra_newline, new_selection),
3384 )
3385 })
3386 .unzip()
3387 };
3388
3389 this.edit_with_autoindent(edits, cx);
3390 let buffer = this.buffer.read(cx).snapshot(cx);
3391 let new_selections = selection_fixup_info
3392 .into_iter()
3393 .map(|(extra_newline_inserted, new_selection)| {
3394 let mut cursor = new_selection.end.to_point(&buffer);
3395 if extra_newline_inserted {
3396 cursor.row -= 1;
3397 cursor.column = buffer.line_len(MultiBufferRow(cursor.row));
3398 }
3399 new_selection.map(|_| cursor)
3400 })
3401 .collect();
3402
3403 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(new_selections));
3404 this.refresh_inline_completion(true, cx);
3405 });
3406 }
3407
3408 pub fn newline_above(&mut self, _: &NewlineAbove, cx: &mut ViewContext<Self>) {
3409 let buffer = self.buffer.read(cx);
3410 let snapshot = buffer.snapshot(cx);
3411
3412 let mut edits = Vec::new();
3413 let mut rows = Vec::new();
3414
3415 for (rows_inserted, selection) in self.selections.all_adjusted(cx).into_iter().enumerate() {
3416 let cursor = selection.head();
3417 let row = cursor.row;
3418
3419 let start_of_line = snapshot.clip_point(Point::new(row, 0), Bias::Left);
3420
3421 let newline = "\n".to_string();
3422 edits.push((start_of_line..start_of_line, newline));
3423
3424 rows.push(row + rows_inserted as u32);
3425 }
3426
3427 self.transact(cx, |editor, cx| {
3428 editor.edit(edits, cx);
3429
3430 editor.change_selections(Some(Autoscroll::fit()), cx, |s| {
3431 let mut index = 0;
3432 s.move_cursors_with(|map, _, _| {
3433 let row = rows[index];
3434 index += 1;
3435
3436 let point = Point::new(row, 0);
3437 let boundary = map.next_line_boundary(point).1;
3438 let clipped = map.clip_point(boundary, Bias::Left);
3439
3440 (clipped, SelectionGoal::None)
3441 });
3442 });
3443
3444 let mut indent_edits = Vec::new();
3445 let multibuffer_snapshot = editor.buffer.read(cx).snapshot(cx);
3446 for row in rows {
3447 let indents = multibuffer_snapshot.suggested_indents(row..row + 1, cx);
3448 for (row, indent) in indents {
3449 if indent.len == 0 {
3450 continue;
3451 }
3452
3453 let text = match indent.kind {
3454 IndentKind::Space => " ".repeat(indent.len as usize),
3455 IndentKind::Tab => "\t".repeat(indent.len as usize),
3456 };
3457 let point = Point::new(row.0, 0);
3458 indent_edits.push((point..point, text));
3459 }
3460 }
3461 editor.edit(indent_edits, cx);
3462 });
3463 }
3464
3465 pub fn newline_below(&mut self, _: &NewlineBelow, cx: &mut ViewContext<Self>) {
3466 let buffer = self.buffer.read(cx);
3467 let snapshot = buffer.snapshot(cx);
3468
3469 let mut edits = Vec::new();
3470 let mut rows = Vec::new();
3471 let mut rows_inserted = 0;
3472
3473 for selection in self.selections.all_adjusted(cx) {
3474 let cursor = selection.head();
3475 let row = cursor.row;
3476
3477 let point = Point::new(row + 1, 0);
3478 let start_of_line = snapshot.clip_point(point, Bias::Left);
3479
3480 let newline = "\n".to_string();
3481 edits.push((start_of_line..start_of_line, newline));
3482
3483 rows_inserted += 1;
3484 rows.push(row + rows_inserted);
3485 }
3486
3487 self.transact(cx, |editor, cx| {
3488 editor.edit(edits, cx);
3489
3490 editor.change_selections(Some(Autoscroll::fit()), cx, |s| {
3491 let mut index = 0;
3492 s.move_cursors_with(|map, _, _| {
3493 let row = rows[index];
3494 index += 1;
3495
3496 let point = Point::new(row, 0);
3497 let boundary = map.next_line_boundary(point).1;
3498 let clipped = map.clip_point(boundary, Bias::Left);
3499
3500 (clipped, SelectionGoal::None)
3501 });
3502 });
3503
3504 let mut indent_edits = Vec::new();
3505 let multibuffer_snapshot = editor.buffer.read(cx).snapshot(cx);
3506 for row in rows {
3507 let indents = multibuffer_snapshot.suggested_indents(row..row + 1, cx);
3508 for (row, indent) in indents {
3509 if indent.len == 0 {
3510 continue;
3511 }
3512
3513 let text = match indent.kind {
3514 IndentKind::Space => " ".repeat(indent.len as usize),
3515 IndentKind::Tab => "\t".repeat(indent.len as usize),
3516 };
3517 let point = Point::new(row.0, 0);
3518 indent_edits.push((point..point, text));
3519 }
3520 }
3521 editor.edit(indent_edits, cx);
3522 });
3523 }
3524
3525 pub fn insert(&mut self, text: &str, cx: &mut ViewContext<Self>) {
3526 let autoindent = text.is_empty().not().then(|| AutoindentMode::Block {
3527 original_indent_columns: Vec::new(),
3528 });
3529 self.insert_with_autoindent_mode(text, autoindent, cx);
3530 }
3531
3532 fn insert_with_autoindent_mode(
3533 &mut self,
3534 text: &str,
3535 autoindent_mode: Option<AutoindentMode>,
3536 cx: &mut ViewContext<Self>,
3537 ) {
3538 if self.read_only(cx) {
3539 return;
3540 }
3541
3542 let text: Arc<str> = text.into();
3543 self.transact(cx, |this, cx| {
3544 let old_selections = this.selections.all_adjusted(cx);
3545 let selection_anchors = this.buffer.update(cx, |buffer, cx| {
3546 let anchors = {
3547 let snapshot = buffer.read(cx);
3548 old_selections
3549 .iter()
3550 .map(|s| {
3551 let anchor = snapshot.anchor_after(s.head());
3552 s.map(|_| anchor)
3553 })
3554 .collect::<Vec<_>>()
3555 };
3556 buffer.edit(
3557 old_selections
3558 .iter()
3559 .map(|s| (s.start..s.end, text.clone())),
3560 autoindent_mode,
3561 cx,
3562 );
3563 anchors
3564 });
3565
3566 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
3567 s.select_anchors(selection_anchors);
3568 })
3569 });
3570 }
3571
3572 fn trigger_completion_on_input(
3573 &mut self,
3574 text: &str,
3575 trigger_in_words: bool,
3576 cx: &mut ViewContext<Self>,
3577 ) {
3578 if self.is_completion_trigger(text, trigger_in_words, cx) {
3579 self.show_completions(
3580 &ShowCompletions {
3581 trigger: text.chars().last(),
3582 },
3583 cx,
3584 );
3585 } else {
3586 self.hide_context_menu(cx);
3587 }
3588 }
3589
3590 fn is_completion_trigger(
3591 &self,
3592 text: &str,
3593 trigger_in_words: bool,
3594 cx: &mut ViewContext<Self>,
3595 ) -> bool {
3596 let position = self.selections.newest_anchor().head();
3597 let multibuffer = self.buffer.read(cx);
3598 let Some(buffer) = position
3599 .buffer_id
3600 .and_then(|buffer_id| multibuffer.buffer(buffer_id).clone())
3601 else {
3602 return false;
3603 };
3604
3605 if let Some(completion_provider) = &self.completion_provider {
3606 completion_provider.is_completion_trigger(
3607 &buffer,
3608 position.text_anchor,
3609 text,
3610 trigger_in_words,
3611 cx,
3612 )
3613 } else {
3614 false
3615 }
3616 }
3617
3618 /// If any empty selections is touching the start of its innermost containing autoclose
3619 /// region, expand it to select the brackets.
3620 fn select_autoclose_pair(&mut self, cx: &mut ViewContext<Self>) {
3621 let selections = self.selections.all::<usize>(cx);
3622 let buffer = self.buffer.read(cx).read(cx);
3623 let new_selections = self
3624 .selections_with_autoclose_regions(selections, &buffer)
3625 .map(|(mut selection, region)| {
3626 if !selection.is_empty() {
3627 return selection;
3628 }
3629
3630 if let Some(region) = region {
3631 let mut range = region.range.to_offset(&buffer);
3632 if selection.start == range.start && range.start >= region.pair.start.len() {
3633 range.start -= region.pair.start.len();
3634 if buffer.contains_str_at(range.start, ®ion.pair.start)
3635 && buffer.contains_str_at(range.end, ®ion.pair.end)
3636 {
3637 range.end += region.pair.end.len();
3638 selection.start = range.start;
3639 selection.end = range.end;
3640
3641 return selection;
3642 }
3643 }
3644 }
3645
3646 let always_treat_brackets_as_autoclosed = buffer
3647 .settings_at(selection.start, cx)
3648 .always_treat_brackets_as_autoclosed;
3649
3650 if !always_treat_brackets_as_autoclosed {
3651 return selection;
3652 }
3653
3654 if let Some(scope) = buffer.language_scope_at(selection.start) {
3655 for (pair, enabled) in scope.brackets() {
3656 if !enabled || !pair.close {
3657 continue;
3658 }
3659
3660 if buffer.contains_str_at(selection.start, &pair.end) {
3661 let pair_start_len = pair.start.len();
3662 if buffer.contains_str_at(selection.start - pair_start_len, &pair.start)
3663 {
3664 selection.start -= pair_start_len;
3665 selection.end += pair.end.len();
3666
3667 return selection;
3668 }
3669 }
3670 }
3671 }
3672
3673 selection
3674 })
3675 .collect();
3676
3677 drop(buffer);
3678 self.change_selections(None, cx, |selections| selections.select(new_selections));
3679 }
3680
3681 /// Iterate the given selections, and for each one, find the smallest surrounding
3682 /// autoclose region. This uses the ordering of the selections and the autoclose
3683 /// regions to avoid repeated comparisons.
3684 fn selections_with_autoclose_regions<'a, D: ToOffset + Clone>(
3685 &'a self,
3686 selections: impl IntoIterator<Item = Selection<D>>,
3687 buffer: &'a MultiBufferSnapshot,
3688 ) -> impl Iterator<Item = (Selection<D>, Option<&'a AutocloseRegion>)> {
3689 let mut i = 0;
3690 let mut regions = self.autoclose_regions.as_slice();
3691 selections.into_iter().map(move |selection| {
3692 let range = selection.start.to_offset(buffer)..selection.end.to_offset(buffer);
3693
3694 let mut enclosing = None;
3695 while let Some(pair_state) = regions.get(i) {
3696 if pair_state.range.end.to_offset(buffer) < range.start {
3697 regions = ®ions[i + 1..];
3698 i = 0;
3699 } else if pair_state.range.start.to_offset(buffer) > range.end {
3700 break;
3701 } else {
3702 if pair_state.selection_id == selection.id {
3703 enclosing = Some(pair_state);
3704 }
3705 i += 1;
3706 }
3707 }
3708
3709 (selection.clone(), enclosing)
3710 })
3711 }
3712
3713 /// Remove any autoclose regions that no longer contain their selection.
3714 fn invalidate_autoclose_regions(
3715 &mut self,
3716 mut selections: &[Selection<Anchor>],
3717 buffer: &MultiBufferSnapshot,
3718 ) {
3719 self.autoclose_regions.retain(|state| {
3720 let mut i = 0;
3721 while let Some(selection) = selections.get(i) {
3722 if selection.end.cmp(&state.range.start, buffer).is_lt() {
3723 selections = &selections[1..];
3724 continue;
3725 }
3726 if selection.start.cmp(&state.range.end, buffer).is_gt() {
3727 break;
3728 }
3729 if selection.id == state.selection_id {
3730 return true;
3731 } else {
3732 i += 1;
3733 }
3734 }
3735 false
3736 });
3737 }
3738
3739 fn completion_query(buffer: &MultiBufferSnapshot, position: impl ToOffset) -> Option<String> {
3740 let offset = position.to_offset(buffer);
3741 let (word_range, kind) = buffer.surrounding_word(offset);
3742 if offset > word_range.start && kind == Some(CharKind::Word) {
3743 Some(
3744 buffer
3745 .text_for_range(word_range.start..offset)
3746 .collect::<String>(),
3747 )
3748 } else {
3749 None
3750 }
3751 }
3752
3753 pub fn toggle_inlay_hints(&mut self, _: &ToggleInlayHints, cx: &mut ViewContext<Self>) {
3754 self.refresh_inlay_hints(
3755 InlayHintRefreshReason::Toggle(!self.inlay_hint_cache.enabled),
3756 cx,
3757 );
3758 }
3759
3760 pub fn inlay_hints_enabled(&self) -> bool {
3761 self.inlay_hint_cache.enabled
3762 }
3763
3764 fn refresh_inlay_hints(&mut self, reason: InlayHintRefreshReason, cx: &mut ViewContext<Self>) {
3765 if self.project.is_none() || self.mode != EditorMode::Full {
3766 return;
3767 }
3768
3769 let reason_description = reason.description();
3770 let ignore_debounce = matches!(
3771 reason,
3772 InlayHintRefreshReason::SettingsChange(_)
3773 | InlayHintRefreshReason::Toggle(_)
3774 | InlayHintRefreshReason::ExcerptsRemoved(_)
3775 );
3776 let (invalidate_cache, required_languages) = match reason {
3777 InlayHintRefreshReason::Toggle(enabled) => {
3778 self.inlay_hint_cache.enabled = enabled;
3779 if enabled {
3780 (InvalidationStrategy::RefreshRequested, None)
3781 } else {
3782 self.inlay_hint_cache.clear();
3783 self.splice_inlays(
3784 self.visible_inlay_hints(cx)
3785 .iter()
3786 .map(|inlay| inlay.id)
3787 .collect(),
3788 Vec::new(),
3789 cx,
3790 );
3791 return;
3792 }
3793 }
3794 InlayHintRefreshReason::SettingsChange(new_settings) => {
3795 match self.inlay_hint_cache.update_settings(
3796 &self.buffer,
3797 new_settings,
3798 self.visible_inlay_hints(cx),
3799 cx,
3800 ) {
3801 ControlFlow::Break(Some(InlaySplice {
3802 to_remove,
3803 to_insert,
3804 })) => {
3805 self.splice_inlays(to_remove, to_insert, cx);
3806 return;
3807 }
3808 ControlFlow::Break(None) => return,
3809 ControlFlow::Continue(()) => (InvalidationStrategy::RefreshRequested, None),
3810 }
3811 }
3812 InlayHintRefreshReason::ExcerptsRemoved(excerpts_removed) => {
3813 if let Some(InlaySplice {
3814 to_remove,
3815 to_insert,
3816 }) = self.inlay_hint_cache.remove_excerpts(excerpts_removed)
3817 {
3818 self.splice_inlays(to_remove, to_insert, cx);
3819 }
3820 return;
3821 }
3822 InlayHintRefreshReason::NewLinesShown => (InvalidationStrategy::None, None),
3823 InlayHintRefreshReason::BufferEdited(buffer_languages) => {
3824 (InvalidationStrategy::BufferEdited, Some(buffer_languages))
3825 }
3826 InlayHintRefreshReason::RefreshRequested => {
3827 (InvalidationStrategy::RefreshRequested, None)
3828 }
3829 };
3830
3831 if let Some(InlaySplice {
3832 to_remove,
3833 to_insert,
3834 }) = self.inlay_hint_cache.spawn_hint_refresh(
3835 reason_description,
3836 self.excerpts_for_inlay_hints_query(required_languages.as_ref(), cx),
3837 invalidate_cache,
3838 ignore_debounce,
3839 cx,
3840 ) {
3841 self.splice_inlays(to_remove, to_insert, cx);
3842 }
3843 }
3844
3845 fn visible_inlay_hints(&self, cx: &ViewContext<'_, Editor>) -> Vec<Inlay> {
3846 self.display_map
3847 .read(cx)
3848 .current_inlays()
3849 .filter(move |inlay| matches!(inlay.id, InlayId::Hint(_)))
3850 .cloned()
3851 .collect()
3852 }
3853
3854 pub fn excerpts_for_inlay_hints_query(
3855 &self,
3856 restrict_to_languages: Option<&HashSet<Arc<Language>>>,
3857 cx: &mut ViewContext<Editor>,
3858 ) -> HashMap<ExcerptId, (Model<Buffer>, clock::Global, Range<usize>)> {
3859 let Some(project) = self.project.as_ref() else {
3860 return HashMap::default();
3861 };
3862 let project = project.read(cx);
3863 let multi_buffer = self.buffer().read(cx);
3864 let multi_buffer_snapshot = multi_buffer.snapshot(cx);
3865 let multi_buffer_visible_start = self
3866 .scroll_manager
3867 .anchor()
3868 .anchor
3869 .to_point(&multi_buffer_snapshot);
3870 let multi_buffer_visible_end = multi_buffer_snapshot.clip_point(
3871 multi_buffer_visible_start
3872 + Point::new(self.visible_line_count().unwrap_or(0.).ceil() as u32, 0),
3873 Bias::Left,
3874 );
3875 let multi_buffer_visible_range = multi_buffer_visible_start..multi_buffer_visible_end;
3876 multi_buffer
3877 .range_to_buffer_ranges(multi_buffer_visible_range, cx)
3878 .into_iter()
3879 .filter(|(_, excerpt_visible_range, _)| !excerpt_visible_range.is_empty())
3880 .filter_map(|(buffer_handle, excerpt_visible_range, excerpt_id)| {
3881 let buffer = buffer_handle.read(cx);
3882 let buffer_file = project::File::from_dyn(buffer.file())?;
3883 let buffer_worktree = project.worktree_for_id(buffer_file.worktree_id(cx), cx)?;
3884 let worktree_entry = buffer_worktree
3885 .read(cx)
3886 .entry_for_id(buffer_file.project_entry_id(cx)?)?;
3887 if worktree_entry.is_ignored {
3888 return None;
3889 }
3890
3891 let language = buffer.language()?;
3892 if let Some(restrict_to_languages) = restrict_to_languages {
3893 if !restrict_to_languages.contains(language) {
3894 return None;
3895 }
3896 }
3897 Some((
3898 excerpt_id,
3899 (
3900 buffer_handle,
3901 buffer.version().clone(),
3902 excerpt_visible_range,
3903 ),
3904 ))
3905 })
3906 .collect()
3907 }
3908
3909 pub fn text_layout_details(&self, cx: &WindowContext) -> TextLayoutDetails {
3910 TextLayoutDetails {
3911 text_system: cx.text_system().clone(),
3912 editor_style: self.style.clone().unwrap(),
3913 rem_size: cx.rem_size(),
3914 scroll_anchor: self.scroll_manager.anchor(),
3915 visible_rows: self.visible_line_count(),
3916 vertical_scroll_margin: self.scroll_manager.vertical_scroll_margin,
3917 }
3918 }
3919
3920 fn splice_inlays(
3921 &self,
3922 to_remove: Vec<InlayId>,
3923 to_insert: Vec<Inlay>,
3924 cx: &mut ViewContext<Self>,
3925 ) {
3926 self.display_map.update(cx, |display_map, cx| {
3927 display_map.splice_inlays(to_remove, to_insert, cx);
3928 });
3929 cx.notify();
3930 }
3931
3932 fn trigger_on_type_formatting(
3933 &self,
3934 input: String,
3935 cx: &mut ViewContext<Self>,
3936 ) -> Option<Task<Result<()>>> {
3937 if input.len() != 1 {
3938 return None;
3939 }
3940
3941 let project = self.project.as_ref()?;
3942 let position = self.selections.newest_anchor().head();
3943 let (buffer, buffer_position) = self
3944 .buffer
3945 .read(cx)
3946 .text_anchor_for_position(position, cx)?;
3947
3948 // OnTypeFormatting returns a list of edits, no need to pass them between Zed instances,
3949 // hence we do LSP request & edit on host side only — add formats to host's history.
3950 let push_to_lsp_host_history = true;
3951 // If this is not the host, append its history with new edits.
3952 let push_to_client_history = project.read(cx).is_remote();
3953
3954 let on_type_formatting = project.update(cx, |project, cx| {
3955 project.on_type_format(
3956 buffer.clone(),
3957 buffer_position,
3958 input,
3959 push_to_lsp_host_history,
3960 cx,
3961 )
3962 });
3963 Some(cx.spawn(|editor, mut cx| async move {
3964 if let Some(transaction) = on_type_formatting.await? {
3965 if push_to_client_history {
3966 buffer
3967 .update(&mut cx, |buffer, _| {
3968 buffer.push_transaction(transaction, Instant::now());
3969 })
3970 .ok();
3971 }
3972 editor.update(&mut cx, |editor, cx| {
3973 editor.refresh_document_highlights(cx);
3974 })?;
3975 }
3976 Ok(())
3977 }))
3978 }
3979
3980 pub fn show_completions(&mut self, options: &ShowCompletions, cx: &mut ViewContext<Self>) {
3981 if self.pending_rename.is_some() {
3982 return;
3983 }
3984
3985 let Some(provider) = self.completion_provider.as_ref() else {
3986 return;
3987 };
3988
3989 let position = self.selections.newest_anchor().head();
3990 let (buffer, buffer_position) =
3991 if let Some(output) = self.buffer.read(cx).text_anchor_for_position(position, cx) {
3992 output
3993 } else {
3994 return;
3995 };
3996
3997 let query = Self::completion_query(&self.buffer.read(cx).read(cx), position);
3998 let is_followup_invoke = {
3999 let context_menu_state = self.context_menu.read();
4000 matches!(
4001 context_menu_state.deref(),
4002 Some(ContextMenu::Completions(_))
4003 )
4004 };
4005 let trigger_kind = match (options.trigger, is_followup_invoke) {
4006 (_, true) => CompletionTriggerKind::TRIGGER_FOR_INCOMPLETE_COMPLETIONS,
4007 (Some(_), _) => CompletionTriggerKind::TRIGGER_CHARACTER,
4008 _ => CompletionTriggerKind::INVOKED,
4009 };
4010 let completion_context = CompletionContext {
4011 trigger_character: options.trigger.and_then(|c| {
4012 if trigger_kind == CompletionTriggerKind::TRIGGER_CHARACTER {
4013 Some(String::from(c))
4014 } else {
4015 None
4016 }
4017 }),
4018 trigger_kind,
4019 };
4020 let completions = provider.completions(&buffer, buffer_position, completion_context, cx);
4021
4022 let id = post_inc(&mut self.next_completion_id);
4023 let task = cx.spawn(|this, mut cx| {
4024 async move {
4025 this.update(&mut cx, |this, _| {
4026 this.completion_tasks.retain(|(task_id, _)| *task_id >= id);
4027 })?;
4028 let completions = completions.await.log_err();
4029 let menu = if let Some(completions) = completions {
4030 let mut menu = CompletionsMenu {
4031 id,
4032 initial_position: position,
4033 match_candidates: completions
4034 .iter()
4035 .enumerate()
4036 .map(|(id, completion)| {
4037 StringMatchCandidate::new(
4038 id,
4039 completion.label.text[completion.label.filter_range.clone()]
4040 .into(),
4041 )
4042 })
4043 .collect(),
4044 buffer: buffer.clone(),
4045 completions: Arc::new(RwLock::new(completions.into())),
4046 matches: Vec::new().into(),
4047 selected_item: 0,
4048 scroll_handle: UniformListScrollHandle::new(),
4049 selected_completion_documentation_resolve_debounce: Arc::new(Mutex::new(
4050 DebouncedDelay::new(),
4051 )),
4052 };
4053 menu.filter(query.as_deref(), cx.background_executor().clone())
4054 .await;
4055
4056 if menu.matches.is_empty() {
4057 None
4058 } else {
4059 this.update(&mut cx, |editor, cx| {
4060 let completions = menu.completions.clone();
4061 let matches = menu.matches.clone();
4062
4063 let delay_ms = EditorSettings::get_global(cx)
4064 .completion_documentation_secondary_query_debounce;
4065 let delay = Duration::from_millis(delay_ms);
4066 editor
4067 .completion_documentation_pre_resolve_debounce
4068 .fire_new(delay, cx, |editor, cx| {
4069 CompletionsMenu::pre_resolve_completion_documentation(
4070 buffer,
4071 completions,
4072 matches,
4073 editor,
4074 cx,
4075 )
4076 });
4077 })
4078 .ok();
4079 Some(menu)
4080 }
4081 } else {
4082 None
4083 };
4084
4085 this.update(&mut cx, |this, cx| {
4086 let mut context_menu = this.context_menu.write();
4087 match context_menu.as_ref() {
4088 None => {}
4089
4090 Some(ContextMenu::Completions(prev_menu)) => {
4091 if prev_menu.id > id {
4092 return;
4093 }
4094 }
4095
4096 _ => return,
4097 }
4098
4099 if this.focus_handle.is_focused(cx) && menu.is_some() {
4100 let menu = menu.unwrap();
4101 *context_menu = Some(ContextMenu::Completions(menu));
4102 drop(context_menu);
4103 this.discard_inline_completion(false, cx);
4104 cx.notify();
4105 } else if this.completion_tasks.len() <= 1 {
4106 // If there are no more completion tasks and the last menu was
4107 // empty, we should hide it. If it was already hidden, we should
4108 // also show the copilot completion when available.
4109 drop(context_menu);
4110 if this.hide_context_menu(cx).is_none() {
4111 this.update_visible_inline_completion(cx);
4112 }
4113 }
4114 })?;
4115
4116 Ok::<_, anyhow::Error>(())
4117 }
4118 .log_err()
4119 });
4120
4121 self.completion_tasks.push((id, task));
4122 }
4123
4124 pub fn confirm_completion(
4125 &mut self,
4126 action: &ConfirmCompletion,
4127 cx: &mut ViewContext<Self>,
4128 ) -> Option<Task<Result<()>>> {
4129 use language::ToOffset as _;
4130
4131 let completions_menu = if let ContextMenu::Completions(menu) = self.hide_context_menu(cx)? {
4132 menu
4133 } else {
4134 return None;
4135 };
4136
4137 let mat = completions_menu
4138 .matches
4139 .get(action.item_ix.unwrap_or(completions_menu.selected_item))?;
4140 let buffer_handle = completions_menu.buffer;
4141 let completions = completions_menu.completions.read();
4142 let completion = completions.get(mat.candidate_id)?;
4143 cx.stop_propagation();
4144
4145 let snippet;
4146 let text;
4147
4148 if completion.is_snippet() {
4149 snippet = Some(Snippet::parse(&completion.new_text).log_err()?);
4150 text = snippet.as_ref().unwrap().text.clone();
4151 } else {
4152 snippet = None;
4153 text = completion.new_text.clone();
4154 };
4155 let selections = self.selections.all::<usize>(cx);
4156 let buffer = buffer_handle.read(cx);
4157 let old_range = completion.old_range.to_offset(buffer);
4158 let old_text = buffer.text_for_range(old_range.clone()).collect::<String>();
4159
4160 let newest_selection = self.selections.newest_anchor();
4161 if newest_selection.start.buffer_id != Some(buffer_handle.read(cx).remote_id()) {
4162 return None;
4163 }
4164
4165 let lookbehind = newest_selection
4166 .start
4167 .text_anchor
4168 .to_offset(buffer)
4169 .saturating_sub(old_range.start);
4170 let lookahead = old_range
4171 .end
4172 .saturating_sub(newest_selection.end.text_anchor.to_offset(buffer));
4173 let mut common_prefix_len = old_text
4174 .bytes()
4175 .zip(text.bytes())
4176 .take_while(|(a, b)| a == b)
4177 .count();
4178
4179 let snapshot = self.buffer.read(cx).snapshot(cx);
4180 let mut range_to_replace: Option<Range<isize>> = None;
4181 let mut ranges = Vec::new();
4182 let mut linked_edits = HashMap::<_, Vec<_>>::default();
4183 for selection in &selections {
4184 if snapshot.contains_str_at(selection.start.saturating_sub(lookbehind), &old_text) {
4185 let start = selection.start.saturating_sub(lookbehind);
4186 let end = selection.end + lookahead;
4187 if selection.id == newest_selection.id {
4188 range_to_replace = Some(
4189 ((start + common_prefix_len) as isize - selection.start as isize)
4190 ..(end as isize - selection.start as isize),
4191 );
4192 }
4193 ranges.push(start + common_prefix_len..end);
4194 } else {
4195 common_prefix_len = 0;
4196 ranges.clear();
4197 ranges.extend(selections.iter().map(|s| {
4198 if s.id == newest_selection.id {
4199 range_to_replace = Some(
4200 old_range.start.to_offset_utf16(&snapshot).0 as isize
4201 - selection.start as isize
4202 ..old_range.end.to_offset_utf16(&snapshot).0 as isize
4203 - selection.start as isize,
4204 );
4205 old_range.clone()
4206 } else {
4207 s.start..s.end
4208 }
4209 }));
4210 break;
4211 }
4212 if !self.linked_edit_ranges.is_empty() {
4213 let start_anchor = snapshot.anchor_before(selection.head());
4214 let end_anchor = snapshot.anchor_after(selection.tail());
4215 if let Some(ranges) = self
4216 .linked_editing_ranges_for(start_anchor.text_anchor..end_anchor.text_anchor, cx)
4217 {
4218 for (buffer, edits) in ranges {
4219 linked_edits.entry(buffer.clone()).or_default().extend(
4220 edits
4221 .into_iter()
4222 .map(|range| (range, text[common_prefix_len..].to_owned())),
4223 );
4224 }
4225 }
4226 }
4227 }
4228 let text = &text[common_prefix_len..];
4229
4230 cx.emit(EditorEvent::InputHandled {
4231 utf16_range_to_replace: range_to_replace,
4232 text: text.into(),
4233 });
4234
4235 self.transact(cx, |this, cx| {
4236 if let Some(mut snippet) = snippet {
4237 snippet.text = text.to_string();
4238 for tabstop in snippet.tabstops.iter_mut().flatten() {
4239 tabstop.start -= common_prefix_len as isize;
4240 tabstop.end -= common_prefix_len as isize;
4241 }
4242
4243 this.insert_snippet(&ranges, snippet, cx).log_err();
4244 } else {
4245 this.buffer.update(cx, |buffer, cx| {
4246 buffer.edit(
4247 ranges.iter().map(|range| (range.clone(), text)),
4248 this.autoindent_mode.clone(),
4249 cx,
4250 );
4251 });
4252 }
4253 for (buffer, edits) in linked_edits {
4254 buffer.update(cx, |buffer, cx| {
4255 let snapshot = buffer.snapshot();
4256 let edits = edits
4257 .into_iter()
4258 .map(|(range, text)| {
4259 use text::ToPoint as TP;
4260 let end_point = TP::to_point(&range.end, &snapshot);
4261 let start_point = TP::to_point(&range.start, &snapshot);
4262 (start_point..end_point, text)
4263 })
4264 .sorted_by_key(|(range, _)| range.start)
4265 .collect::<Vec<_>>();
4266 buffer.edit(edits, None, cx);
4267 })
4268 }
4269
4270 this.refresh_inline_completion(true, cx);
4271 });
4272
4273 if let Some(confirm) = completion.confirm.as_ref() {
4274 (confirm)(cx);
4275 }
4276
4277 if completion.show_new_completions_on_confirm {
4278 self.show_completions(&ShowCompletions { trigger: None }, cx);
4279 }
4280
4281 let provider = self.completion_provider.as_ref()?;
4282 let apply_edits = provider.apply_additional_edits_for_completion(
4283 buffer_handle,
4284 completion.clone(),
4285 true,
4286 cx,
4287 );
4288 Some(cx.foreground_executor().spawn(async move {
4289 apply_edits.await?;
4290 Ok(())
4291 }))
4292 }
4293
4294 pub fn toggle_code_actions(&mut self, action: &ToggleCodeActions, cx: &mut ViewContext<Self>) {
4295 let mut context_menu = self.context_menu.write();
4296 if let Some(ContextMenu::CodeActions(code_actions)) = context_menu.as_ref() {
4297 if code_actions.deployed_from_indicator == action.deployed_from_indicator {
4298 // Toggle if we're selecting the same one
4299 *context_menu = None;
4300 cx.notify();
4301 return;
4302 } else {
4303 // Otherwise, clear it and start a new one
4304 *context_menu = None;
4305 cx.notify();
4306 }
4307 }
4308 drop(context_menu);
4309 let snapshot = self.snapshot(cx);
4310 let deployed_from_indicator = action.deployed_from_indicator;
4311 let mut task = self.code_actions_task.take();
4312 let action = action.clone();
4313 cx.spawn(|editor, mut cx| async move {
4314 while let Some(prev_task) = task {
4315 prev_task.await;
4316 task = editor.update(&mut cx, |this, _| this.code_actions_task.take())?;
4317 }
4318
4319 let spawned_test_task = editor.update(&mut cx, |editor, cx| {
4320 if editor.focus_handle.is_focused(cx) {
4321 let multibuffer_point = action
4322 .deployed_from_indicator
4323 .map(|row| DisplayPoint::new(row, 0).to_point(&snapshot))
4324 .unwrap_or_else(|| editor.selections.newest::<Point>(cx).head());
4325 let (buffer, buffer_row) = snapshot
4326 .buffer_snapshot
4327 .buffer_line_for_row(MultiBufferRow(multibuffer_point.row))
4328 .and_then(|(buffer_snapshot, range)| {
4329 editor
4330 .buffer
4331 .read(cx)
4332 .buffer(buffer_snapshot.remote_id())
4333 .map(|buffer| (buffer, range.start.row))
4334 })?;
4335 let (_, code_actions) = editor
4336 .available_code_actions
4337 .clone()
4338 .and_then(|(location, code_actions)| {
4339 let snapshot = location.buffer.read(cx).snapshot();
4340 let point_range = location.range.to_point(&snapshot);
4341 let point_range = point_range.start.row..=point_range.end.row;
4342 if point_range.contains(&buffer_row) {
4343 Some((location, code_actions))
4344 } else {
4345 None
4346 }
4347 })
4348 .unzip();
4349 let buffer_id = buffer.read(cx).remote_id();
4350 let tasks = editor
4351 .tasks
4352 .get(&(buffer_id, buffer_row))
4353 .map(|t| Arc::new(t.to_owned()));
4354 if tasks.is_none() && code_actions.is_none() {
4355 return None;
4356 }
4357
4358 editor.completion_tasks.clear();
4359 editor.discard_inline_completion(false, cx);
4360 let task_context =
4361 tasks
4362 .as_ref()
4363 .zip(editor.project.clone())
4364 .map(|(tasks, project)| {
4365 let position = Point::new(buffer_row, tasks.column);
4366 let range_start = buffer.read(cx).anchor_at(position, Bias::Right);
4367 let location = Location {
4368 buffer: buffer.clone(),
4369 range: range_start..range_start,
4370 };
4371 // Fill in the environmental variables from the tree-sitter captures
4372 let mut captured_task_variables = TaskVariables::default();
4373 for (capture_name, value) in tasks.extra_variables.clone() {
4374 captured_task_variables.insert(
4375 task::VariableName::Custom(capture_name.into()),
4376 value.clone(),
4377 );
4378 }
4379 project.update(cx, |project, cx| {
4380 project.task_context_for_location(
4381 captured_task_variables,
4382 location,
4383 cx,
4384 )
4385 })
4386 });
4387
4388 Some(cx.spawn(|editor, mut cx| async move {
4389 let task_context = match task_context {
4390 Some(task_context) => task_context.await,
4391 None => None,
4392 };
4393 let resolved_tasks =
4394 tasks.zip(task_context).map(|(tasks, task_context)| {
4395 Arc::new(ResolvedTasks {
4396 templates: tasks
4397 .templates
4398 .iter()
4399 .filter_map(|(kind, template)| {
4400 template
4401 .resolve_task(&kind.to_id_base(), &task_context)
4402 .map(|task| (kind.clone(), task))
4403 })
4404 .collect(),
4405 position: snapshot.buffer_snapshot.anchor_before(Point::new(
4406 multibuffer_point.row,
4407 tasks.column,
4408 )),
4409 })
4410 });
4411 let spawn_straight_away = resolved_tasks
4412 .as_ref()
4413 .map_or(false, |tasks| tasks.templates.len() == 1)
4414 && code_actions
4415 .as_ref()
4416 .map_or(true, |actions| actions.is_empty());
4417 if let Some(task) = editor
4418 .update(&mut cx, |editor, cx| {
4419 *editor.context_menu.write() =
4420 Some(ContextMenu::CodeActions(CodeActionsMenu {
4421 buffer,
4422 actions: CodeActionContents {
4423 tasks: resolved_tasks,
4424 actions: code_actions,
4425 },
4426 selected_item: Default::default(),
4427 scroll_handle: UniformListScrollHandle::default(),
4428 deployed_from_indicator,
4429 }));
4430 if spawn_straight_away {
4431 if let Some(task) = editor.confirm_code_action(
4432 &ConfirmCodeAction { item_ix: Some(0) },
4433 cx,
4434 ) {
4435 cx.notify();
4436 return task;
4437 }
4438 }
4439 cx.notify();
4440 Task::ready(Ok(()))
4441 })
4442 .ok()
4443 {
4444 task.await
4445 } else {
4446 Ok(())
4447 }
4448 }))
4449 } else {
4450 Some(Task::ready(Ok(())))
4451 }
4452 })?;
4453 if let Some(task) = spawned_test_task {
4454 task.await?;
4455 }
4456
4457 Ok::<_, anyhow::Error>(())
4458 })
4459 .detach_and_log_err(cx);
4460 }
4461
4462 pub fn confirm_code_action(
4463 &mut self,
4464 action: &ConfirmCodeAction,
4465 cx: &mut ViewContext<Self>,
4466 ) -> Option<Task<Result<()>>> {
4467 let actions_menu = if let ContextMenu::CodeActions(menu) = self.hide_context_menu(cx)? {
4468 menu
4469 } else {
4470 return None;
4471 };
4472 let action_ix = action.item_ix.unwrap_or(actions_menu.selected_item);
4473 let action = actions_menu.actions.get(action_ix)?;
4474 let title = action.label();
4475 let buffer = actions_menu.buffer;
4476 let workspace = self.workspace()?;
4477
4478 match action {
4479 CodeActionsItem::Task(task_source_kind, resolved_task) => {
4480 workspace.update(cx, |workspace, cx| {
4481 workspace::tasks::schedule_resolved_task(
4482 workspace,
4483 task_source_kind,
4484 resolved_task,
4485 false,
4486 cx,
4487 );
4488
4489 Some(Task::ready(Ok(())))
4490 })
4491 }
4492 CodeActionsItem::CodeAction(action) => {
4493 let apply_code_actions = workspace
4494 .read(cx)
4495 .project()
4496 .clone()
4497 .update(cx, |project, cx| {
4498 project.apply_code_action(buffer, action, true, cx)
4499 });
4500 let workspace = workspace.downgrade();
4501 Some(cx.spawn(|editor, cx| async move {
4502 let project_transaction = apply_code_actions.await?;
4503 Self::open_project_transaction(
4504 &editor,
4505 workspace,
4506 project_transaction,
4507 title,
4508 cx,
4509 )
4510 .await
4511 }))
4512 }
4513 }
4514 }
4515
4516 pub async fn open_project_transaction(
4517 this: &WeakView<Editor>,
4518 workspace: WeakView<Workspace>,
4519 transaction: ProjectTransaction,
4520 title: String,
4521 mut cx: AsyncWindowContext,
4522 ) -> Result<()> {
4523 let replica_id = this.update(&mut cx, |this, cx| this.replica_id(cx))?;
4524
4525 let mut entries = transaction.0.into_iter().collect::<Vec<_>>();
4526 cx.update(|cx| {
4527 entries.sort_unstable_by_key(|(buffer, _)| {
4528 buffer.read(cx).file().map(|f| f.path().clone())
4529 });
4530 })?;
4531
4532 // If the project transaction's edits are all contained within this editor, then
4533 // avoid opening a new editor to display them.
4534
4535 if let Some((buffer, transaction)) = entries.first() {
4536 if entries.len() == 1 {
4537 let excerpt = this.update(&mut cx, |editor, cx| {
4538 editor
4539 .buffer()
4540 .read(cx)
4541 .excerpt_containing(editor.selections.newest_anchor().head(), cx)
4542 })?;
4543 if let Some((_, excerpted_buffer, excerpt_range)) = excerpt {
4544 if excerpted_buffer == *buffer {
4545 let all_edits_within_excerpt = buffer.read_with(&cx, |buffer, _| {
4546 let excerpt_range = excerpt_range.to_offset(buffer);
4547 buffer
4548 .edited_ranges_for_transaction::<usize>(transaction)
4549 .all(|range| {
4550 excerpt_range.start <= range.start
4551 && excerpt_range.end >= range.end
4552 })
4553 })?;
4554
4555 if all_edits_within_excerpt {
4556 return Ok(());
4557 }
4558 }
4559 }
4560 }
4561 } else {
4562 return Ok(());
4563 }
4564
4565 let mut ranges_to_highlight = Vec::new();
4566 let excerpt_buffer = cx.new_model(|cx| {
4567 let mut multibuffer =
4568 MultiBuffer::new(replica_id, Capability::ReadWrite).with_title(title);
4569 for (buffer_handle, transaction) in &entries {
4570 let buffer = buffer_handle.read(cx);
4571 ranges_to_highlight.extend(
4572 multibuffer.push_excerpts_with_context_lines(
4573 buffer_handle.clone(),
4574 buffer
4575 .edited_ranges_for_transaction::<usize>(transaction)
4576 .collect(),
4577 DEFAULT_MULTIBUFFER_CONTEXT,
4578 cx,
4579 ),
4580 );
4581 }
4582 multibuffer.push_transaction(entries.iter().map(|(b, t)| (b, t)), cx);
4583 multibuffer
4584 })?;
4585
4586 workspace.update(&mut cx, |workspace, cx| {
4587 let project = workspace.project().clone();
4588 let editor =
4589 cx.new_view(|cx| Editor::for_multibuffer(excerpt_buffer, Some(project), true, cx));
4590 workspace.add_item_to_active_pane(Box::new(editor.clone()), None, cx);
4591 editor.update(cx, |editor, cx| {
4592 editor.highlight_background::<Self>(
4593 &ranges_to_highlight,
4594 |theme| theme.editor_highlighted_line_background,
4595 cx,
4596 );
4597 });
4598 })?;
4599
4600 Ok(())
4601 }
4602
4603 fn refresh_code_actions(&mut self, cx: &mut ViewContext<Self>) -> Option<()> {
4604 let project = self.project.clone()?;
4605 let buffer = self.buffer.read(cx);
4606 let newest_selection = self.selections.newest_anchor().clone();
4607 let (start_buffer, start) = buffer.text_anchor_for_position(newest_selection.start, cx)?;
4608 let (end_buffer, end) = buffer.text_anchor_for_position(newest_selection.end, cx)?;
4609 if start_buffer != end_buffer {
4610 return None;
4611 }
4612
4613 self.code_actions_task = Some(cx.spawn(|this, mut cx| async move {
4614 cx.background_executor()
4615 .timer(CODE_ACTIONS_DEBOUNCE_TIMEOUT)
4616 .await;
4617
4618 let actions = if let Ok(code_actions) = project.update(&mut cx, |project, cx| {
4619 project.code_actions(&start_buffer, start..end, cx)
4620 }) {
4621 code_actions.await
4622 } else {
4623 Vec::new()
4624 };
4625
4626 this.update(&mut cx, |this, cx| {
4627 this.available_code_actions = if actions.is_empty() {
4628 None
4629 } else {
4630 Some((
4631 Location {
4632 buffer: start_buffer,
4633 range: start..end,
4634 },
4635 actions.into(),
4636 ))
4637 };
4638 cx.notify();
4639 })
4640 .log_err();
4641 }));
4642 None
4643 }
4644
4645 fn start_inline_blame_timer(&mut self, cx: &mut ViewContext<Self>) {
4646 if let Some(delay) = ProjectSettings::get_global(cx).git.inline_blame_delay() {
4647 self.show_git_blame_inline = false;
4648
4649 self.show_git_blame_inline_delay_task = Some(cx.spawn(|this, mut cx| async move {
4650 cx.background_executor().timer(delay).await;
4651
4652 this.update(&mut cx, |this, cx| {
4653 this.show_git_blame_inline = true;
4654 cx.notify();
4655 })
4656 .log_err();
4657 }));
4658 }
4659 }
4660
4661 fn refresh_document_highlights(&mut self, cx: &mut ViewContext<Self>) -> Option<()> {
4662 if self.pending_rename.is_some() {
4663 return None;
4664 }
4665
4666 let project = self.project.clone()?;
4667 let buffer = self.buffer.read(cx);
4668 let newest_selection = self.selections.newest_anchor().clone();
4669 let cursor_position = newest_selection.head();
4670 let (cursor_buffer, cursor_buffer_position) =
4671 buffer.text_anchor_for_position(cursor_position, cx)?;
4672 let (tail_buffer, _) = buffer.text_anchor_for_position(newest_selection.tail(), cx)?;
4673 if cursor_buffer != tail_buffer {
4674 return None;
4675 }
4676
4677 self.document_highlights_task = Some(cx.spawn(|this, mut cx| async move {
4678 cx.background_executor()
4679 .timer(DOCUMENT_HIGHLIGHTS_DEBOUNCE_TIMEOUT)
4680 .await;
4681
4682 let highlights = if let Some(highlights) = project
4683 .update(&mut cx, |project, cx| {
4684 project.document_highlights(&cursor_buffer, cursor_buffer_position, cx)
4685 })
4686 .log_err()
4687 {
4688 highlights.await.log_err()
4689 } else {
4690 None
4691 };
4692
4693 if let Some(highlights) = highlights {
4694 this.update(&mut cx, |this, cx| {
4695 if this.pending_rename.is_some() {
4696 return;
4697 }
4698
4699 let buffer_id = cursor_position.buffer_id;
4700 let buffer = this.buffer.read(cx);
4701 if !buffer
4702 .text_anchor_for_position(cursor_position, cx)
4703 .map_or(false, |(buffer, _)| buffer == cursor_buffer)
4704 {
4705 return;
4706 }
4707
4708 let cursor_buffer_snapshot = cursor_buffer.read(cx);
4709 let mut write_ranges = Vec::new();
4710 let mut read_ranges = Vec::new();
4711 for highlight in highlights {
4712 for (excerpt_id, excerpt_range) in
4713 buffer.excerpts_for_buffer(&cursor_buffer, cx)
4714 {
4715 let start = highlight
4716 .range
4717 .start
4718 .max(&excerpt_range.context.start, cursor_buffer_snapshot);
4719 let end = highlight
4720 .range
4721 .end
4722 .min(&excerpt_range.context.end, cursor_buffer_snapshot);
4723 if start.cmp(&end, cursor_buffer_snapshot).is_ge() {
4724 continue;
4725 }
4726
4727 let range = Anchor {
4728 buffer_id,
4729 excerpt_id: excerpt_id,
4730 text_anchor: start,
4731 }..Anchor {
4732 buffer_id,
4733 excerpt_id,
4734 text_anchor: end,
4735 };
4736 if highlight.kind == lsp::DocumentHighlightKind::WRITE {
4737 write_ranges.push(range);
4738 } else {
4739 read_ranges.push(range);
4740 }
4741 }
4742 }
4743
4744 this.highlight_background::<DocumentHighlightRead>(
4745 &read_ranges,
4746 |theme| theme.editor_document_highlight_read_background,
4747 cx,
4748 );
4749 this.highlight_background::<DocumentHighlightWrite>(
4750 &write_ranges,
4751 |theme| theme.editor_document_highlight_write_background,
4752 cx,
4753 );
4754 cx.notify();
4755 })
4756 .log_err();
4757 }
4758 }));
4759 None
4760 }
4761
4762 fn refresh_inline_completion(
4763 &mut self,
4764 debounce: bool,
4765 cx: &mut ViewContext<Self>,
4766 ) -> Option<()> {
4767 let provider = self.inline_completion_provider()?;
4768 let cursor = self.selections.newest_anchor().head();
4769 let (buffer, cursor_buffer_position) =
4770 self.buffer.read(cx).text_anchor_for_position(cursor, cx)?;
4771 if !self.show_inline_completions
4772 || !provider.is_enabled(&buffer, cursor_buffer_position, cx)
4773 {
4774 self.discard_inline_completion(false, cx);
4775 return None;
4776 }
4777
4778 self.update_visible_inline_completion(cx);
4779 provider.refresh(buffer, cursor_buffer_position, debounce, cx);
4780 Some(())
4781 }
4782
4783 fn cycle_inline_completion(
4784 &mut self,
4785 direction: Direction,
4786 cx: &mut ViewContext<Self>,
4787 ) -> Option<()> {
4788 let provider = self.inline_completion_provider()?;
4789 let cursor = self.selections.newest_anchor().head();
4790 let (buffer, cursor_buffer_position) =
4791 self.buffer.read(cx).text_anchor_for_position(cursor, cx)?;
4792 if !self.show_inline_completions
4793 || !provider.is_enabled(&buffer, cursor_buffer_position, cx)
4794 {
4795 return None;
4796 }
4797
4798 provider.cycle(buffer, cursor_buffer_position, direction, cx);
4799 self.update_visible_inline_completion(cx);
4800
4801 Some(())
4802 }
4803
4804 pub fn show_inline_completion(&mut self, _: &ShowInlineCompletion, cx: &mut ViewContext<Self>) {
4805 if !self.has_active_inline_completion(cx) {
4806 self.refresh_inline_completion(false, cx);
4807 return;
4808 }
4809
4810 self.update_visible_inline_completion(cx);
4811 }
4812
4813 pub fn display_cursor_names(&mut self, _: &DisplayCursorNames, cx: &mut ViewContext<Self>) {
4814 self.show_cursor_names(cx);
4815 }
4816
4817 fn show_cursor_names(&mut self, cx: &mut ViewContext<Self>) {
4818 self.show_cursor_names = true;
4819 cx.notify();
4820 cx.spawn(|this, mut cx| async move {
4821 cx.background_executor().timer(CURSORS_VISIBLE_FOR).await;
4822 this.update(&mut cx, |this, cx| {
4823 this.show_cursor_names = false;
4824 cx.notify()
4825 })
4826 .ok()
4827 })
4828 .detach();
4829 }
4830
4831 pub fn next_inline_completion(&mut self, _: &NextInlineCompletion, cx: &mut ViewContext<Self>) {
4832 if self.has_active_inline_completion(cx) {
4833 self.cycle_inline_completion(Direction::Next, cx);
4834 } else {
4835 let is_copilot_disabled = self.refresh_inline_completion(false, cx).is_none();
4836 if is_copilot_disabled {
4837 cx.propagate();
4838 }
4839 }
4840 }
4841
4842 pub fn previous_inline_completion(
4843 &mut self,
4844 _: &PreviousInlineCompletion,
4845 cx: &mut ViewContext<Self>,
4846 ) {
4847 if self.has_active_inline_completion(cx) {
4848 self.cycle_inline_completion(Direction::Prev, cx);
4849 } else {
4850 let is_copilot_disabled = self.refresh_inline_completion(false, cx).is_none();
4851 if is_copilot_disabled {
4852 cx.propagate();
4853 }
4854 }
4855 }
4856
4857 pub fn accept_inline_completion(
4858 &mut self,
4859 _: &AcceptInlineCompletion,
4860 cx: &mut ViewContext<Self>,
4861 ) {
4862 let Some(completion) = self.take_active_inline_completion(cx) else {
4863 return;
4864 };
4865 if let Some(provider) = self.inline_completion_provider() {
4866 provider.accept(cx);
4867 }
4868
4869 cx.emit(EditorEvent::InputHandled {
4870 utf16_range_to_replace: None,
4871 text: completion.text.to_string().into(),
4872 });
4873 self.insert_with_autoindent_mode(&completion.text.to_string(), None, cx);
4874 self.refresh_inline_completion(true, cx);
4875 cx.notify();
4876 }
4877
4878 pub fn accept_partial_inline_completion(
4879 &mut self,
4880 _: &AcceptPartialInlineCompletion,
4881 cx: &mut ViewContext<Self>,
4882 ) {
4883 if self.selections.count() == 1 && self.has_active_inline_completion(cx) {
4884 if let Some(completion) = self.take_active_inline_completion(cx) {
4885 let mut partial_completion = completion
4886 .text
4887 .chars()
4888 .by_ref()
4889 .take_while(|c| c.is_alphabetic())
4890 .collect::<String>();
4891 if partial_completion.is_empty() {
4892 partial_completion = completion
4893 .text
4894 .chars()
4895 .by_ref()
4896 .take_while(|c| c.is_whitespace() || !c.is_alphabetic())
4897 .collect::<String>();
4898 }
4899
4900 cx.emit(EditorEvent::InputHandled {
4901 utf16_range_to_replace: None,
4902 text: partial_completion.clone().into(),
4903 });
4904 self.insert_with_autoindent_mode(&partial_completion, None, cx);
4905 self.refresh_inline_completion(true, cx);
4906 cx.notify();
4907 }
4908 }
4909 }
4910
4911 fn discard_inline_completion(
4912 &mut self,
4913 should_report_inline_completion_event: bool,
4914 cx: &mut ViewContext<Self>,
4915 ) -> bool {
4916 if let Some(provider) = self.inline_completion_provider() {
4917 provider.discard(should_report_inline_completion_event, cx);
4918 }
4919
4920 self.take_active_inline_completion(cx).is_some()
4921 }
4922
4923 pub fn has_active_inline_completion(&self, cx: &AppContext) -> bool {
4924 if let Some(completion) = self.active_inline_completion.as_ref() {
4925 let buffer = self.buffer.read(cx).read(cx);
4926 completion.position.is_valid(&buffer)
4927 } else {
4928 false
4929 }
4930 }
4931
4932 fn take_active_inline_completion(&mut self, cx: &mut ViewContext<Self>) -> Option<Inlay> {
4933 let completion = self.active_inline_completion.take()?;
4934 self.display_map.update(cx, |map, cx| {
4935 map.splice_inlays(vec![completion.id], Default::default(), cx);
4936 });
4937 let buffer = self.buffer.read(cx).read(cx);
4938
4939 if completion.position.is_valid(&buffer) {
4940 Some(completion)
4941 } else {
4942 None
4943 }
4944 }
4945
4946 fn update_visible_inline_completion(&mut self, cx: &mut ViewContext<Self>) {
4947 let selection = self.selections.newest_anchor();
4948 let cursor = selection.head();
4949
4950 if self.context_menu.read().is_none()
4951 && self.completion_tasks.is_empty()
4952 && selection.start == selection.end
4953 {
4954 if let Some(provider) = self.inline_completion_provider() {
4955 if let Some((buffer, cursor_buffer_position)) =
4956 self.buffer.read(cx).text_anchor_for_position(cursor, cx)
4957 {
4958 if let Some(text) =
4959 provider.active_completion_text(&buffer, cursor_buffer_position, cx)
4960 {
4961 let text = Rope::from(text);
4962 let mut to_remove = Vec::new();
4963 if let Some(completion) = self.active_inline_completion.take() {
4964 to_remove.push(completion.id);
4965 }
4966
4967 let completion_inlay =
4968 Inlay::suggestion(post_inc(&mut self.next_inlay_id), cursor, text);
4969 self.active_inline_completion = Some(completion_inlay.clone());
4970 self.display_map.update(cx, move |map, cx| {
4971 map.splice_inlays(to_remove, vec![completion_inlay], cx)
4972 });
4973 cx.notify();
4974 return;
4975 }
4976 }
4977 }
4978 }
4979
4980 self.discard_inline_completion(false, cx);
4981 }
4982
4983 fn inline_completion_provider(&self) -> Option<Arc<dyn InlineCompletionProviderHandle>> {
4984 Some(self.inline_completion_provider.as_ref()?.provider.clone())
4985 }
4986
4987 fn render_code_actions_indicator(
4988 &self,
4989 _style: &EditorStyle,
4990 row: DisplayRow,
4991 is_active: bool,
4992 cx: &mut ViewContext<Self>,
4993 ) -> Option<IconButton> {
4994 if self.available_code_actions.is_some() {
4995 Some(
4996 IconButton::new("code_actions_indicator", ui::IconName::Bolt)
4997 .shape(ui::IconButtonShape::Square)
4998 .icon_size(IconSize::XSmall)
4999 .icon_color(Color::Muted)
5000 .selected(is_active)
5001 .on_click(cx.listener(move |editor, _e, cx| {
5002 editor.focus(cx);
5003 editor.toggle_code_actions(
5004 &ToggleCodeActions {
5005 deployed_from_indicator: Some(row),
5006 },
5007 cx,
5008 );
5009 })),
5010 )
5011 } else {
5012 None
5013 }
5014 }
5015
5016 fn clear_tasks(&mut self) {
5017 self.tasks.clear()
5018 }
5019
5020 fn insert_tasks(&mut self, key: (BufferId, BufferRow), value: RunnableTasks) {
5021 if let Some(_) = self.tasks.insert(key, value) {
5022 // This case should hopefully be rare, but just in case...
5023 log::error!("multiple different run targets found on a single line, only the last target will be rendered")
5024 }
5025 }
5026
5027 fn render_run_indicator(
5028 &self,
5029 _style: &EditorStyle,
5030 is_active: bool,
5031 row: DisplayRow,
5032 cx: &mut ViewContext<Self>,
5033 ) -> IconButton {
5034 IconButton::new(("run_indicator", row.0 as usize), ui::IconName::Play)
5035 .shape(ui::IconButtonShape::Square)
5036 .icon_size(IconSize::XSmall)
5037 .icon_color(Color::Muted)
5038 .selected(is_active)
5039 .on_click(cx.listener(move |editor, _e, cx| {
5040 editor.focus(cx);
5041 editor.toggle_code_actions(
5042 &ToggleCodeActions {
5043 deployed_from_indicator: Some(row),
5044 },
5045 cx,
5046 );
5047 }))
5048 }
5049
5050 pub fn context_menu_visible(&self) -> bool {
5051 self.context_menu
5052 .read()
5053 .as_ref()
5054 .map_or(false, |menu| menu.visible())
5055 }
5056
5057 fn render_context_menu(
5058 &self,
5059 cursor_position: DisplayPoint,
5060 style: &EditorStyle,
5061 max_height: Pixels,
5062 cx: &mut ViewContext<Editor>,
5063 ) -> Option<(ContextMenuOrigin, AnyElement)> {
5064 self.context_menu.read().as_ref().map(|menu| {
5065 menu.render(
5066 cursor_position,
5067 style,
5068 max_height,
5069 self.workspace.as_ref().map(|(w, _)| w.clone()),
5070 cx,
5071 )
5072 })
5073 }
5074
5075 fn hide_context_menu(&mut self, cx: &mut ViewContext<Self>) -> Option<ContextMenu> {
5076 cx.notify();
5077 self.completion_tasks.clear();
5078 let context_menu = self.context_menu.write().take();
5079 if context_menu.is_some() {
5080 self.update_visible_inline_completion(cx);
5081 }
5082 context_menu
5083 }
5084
5085 pub fn insert_snippet(
5086 &mut self,
5087 insertion_ranges: &[Range<usize>],
5088 snippet: Snippet,
5089 cx: &mut ViewContext<Self>,
5090 ) -> Result<()> {
5091 struct Tabstop<T> {
5092 is_end_tabstop: bool,
5093 ranges: Vec<Range<T>>,
5094 }
5095
5096 let tabstops = self.buffer.update(cx, |buffer, cx| {
5097 let snippet_text: Arc<str> = snippet.text.clone().into();
5098 buffer.edit(
5099 insertion_ranges
5100 .iter()
5101 .cloned()
5102 .map(|range| (range, snippet_text.clone())),
5103 Some(AutoindentMode::EachLine),
5104 cx,
5105 );
5106
5107 let snapshot = &*buffer.read(cx);
5108 let snippet = &snippet;
5109 snippet
5110 .tabstops
5111 .iter()
5112 .map(|tabstop| {
5113 let is_end_tabstop = tabstop.first().map_or(false, |tabstop| {
5114 tabstop.is_empty() && tabstop.start == snippet.text.len() as isize
5115 });
5116 let mut tabstop_ranges = tabstop
5117 .iter()
5118 .flat_map(|tabstop_range| {
5119 let mut delta = 0_isize;
5120 insertion_ranges.iter().map(move |insertion_range| {
5121 let insertion_start = insertion_range.start as isize + delta;
5122 delta +=
5123 snippet.text.len() as isize - insertion_range.len() as isize;
5124
5125 let start = ((insertion_start + tabstop_range.start) as usize)
5126 .min(snapshot.len());
5127 let end = ((insertion_start + tabstop_range.end) as usize)
5128 .min(snapshot.len());
5129 snapshot.anchor_before(start)..snapshot.anchor_after(end)
5130 })
5131 })
5132 .collect::<Vec<_>>();
5133 tabstop_ranges.sort_unstable_by(|a, b| a.start.cmp(&b.start, snapshot));
5134
5135 Tabstop {
5136 is_end_tabstop,
5137 ranges: tabstop_ranges,
5138 }
5139 })
5140 .collect::<Vec<_>>()
5141 });
5142
5143 if let Some(tabstop) = tabstops.first() {
5144 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5145 s.select_ranges(tabstop.ranges.iter().cloned());
5146 });
5147
5148 // If we're already at the last tabstop and it's at the end of the snippet,
5149 // we're done, we don't need to keep the state around.
5150 if !tabstop.is_end_tabstop {
5151 let ranges = tabstops
5152 .into_iter()
5153 .map(|tabstop| tabstop.ranges)
5154 .collect::<Vec<_>>();
5155 self.snippet_stack.push(SnippetState {
5156 active_index: 0,
5157 ranges,
5158 });
5159 }
5160
5161 // Check whether the just-entered snippet ends with an auto-closable bracket.
5162 if self.autoclose_regions.is_empty() {
5163 let snapshot = self.buffer.read(cx).snapshot(cx);
5164 for selection in &mut self.selections.all::<Point>(cx) {
5165 let selection_head = selection.head();
5166 let Some(scope) = snapshot.language_scope_at(selection_head) else {
5167 continue;
5168 };
5169
5170 let mut bracket_pair = None;
5171 let next_chars = snapshot.chars_at(selection_head).collect::<String>();
5172 let prev_chars = snapshot
5173 .reversed_chars_at(selection_head)
5174 .collect::<String>();
5175 for (pair, enabled) in scope.brackets() {
5176 if enabled
5177 && pair.close
5178 && prev_chars.starts_with(pair.start.as_str())
5179 && next_chars.starts_with(pair.end.as_str())
5180 {
5181 bracket_pair = Some(pair.clone());
5182 break;
5183 }
5184 }
5185 if let Some(pair) = bracket_pair {
5186 let start = snapshot.anchor_after(selection_head);
5187 let end = snapshot.anchor_after(selection_head);
5188 self.autoclose_regions.push(AutocloseRegion {
5189 selection_id: selection.id,
5190 range: start..end,
5191 pair,
5192 });
5193 }
5194 }
5195 }
5196 }
5197 Ok(())
5198 }
5199
5200 pub fn move_to_next_snippet_tabstop(&mut self, cx: &mut ViewContext<Self>) -> bool {
5201 self.move_to_snippet_tabstop(Bias::Right, cx)
5202 }
5203
5204 pub fn move_to_prev_snippet_tabstop(&mut self, cx: &mut ViewContext<Self>) -> bool {
5205 self.move_to_snippet_tabstop(Bias::Left, cx)
5206 }
5207
5208 pub fn move_to_snippet_tabstop(&mut self, bias: Bias, cx: &mut ViewContext<Self>) -> bool {
5209 if let Some(mut snippet) = self.snippet_stack.pop() {
5210 match bias {
5211 Bias::Left => {
5212 if snippet.active_index > 0 {
5213 snippet.active_index -= 1;
5214 } else {
5215 self.snippet_stack.push(snippet);
5216 return false;
5217 }
5218 }
5219 Bias::Right => {
5220 if snippet.active_index + 1 < snippet.ranges.len() {
5221 snippet.active_index += 1;
5222 } else {
5223 self.snippet_stack.push(snippet);
5224 return false;
5225 }
5226 }
5227 }
5228 if let Some(current_ranges) = snippet.ranges.get(snippet.active_index) {
5229 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5230 s.select_anchor_ranges(current_ranges.iter().cloned())
5231 });
5232 // If snippet state is not at the last tabstop, push it back on the stack
5233 if snippet.active_index + 1 < snippet.ranges.len() {
5234 self.snippet_stack.push(snippet);
5235 }
5236 return true;
5237 }
5238 }
5239
5240 false
5241 }
5242
5243 pub fn clear(&mut self, cx: &mut ViewContext<Self>) {
5244 self.transact(cx, |this, cx| {
5245 this.select_all(&SelectAll, cx);
5246 this.insert("", cx);
5247 });
5248 }
5249
5250 pub fn backspace(&mut self, _: &Backspace, cx: &mut ViewContext<Self>) {
5251 self.transact(cx, |this, cx| {
5252 this.select_autoclose_pair(cx);
5253 let mut linked_ranges = HashMap::<_, Vec<_>>::default();
5254 if !this.linked_edit_ranges.is_empty() {
5255 let selections = this.selections.all::<MultiBufferPoint>(cx);
5256 let snapshot = this.buffer.read(cx).snapshot(cx);
5257
5258 for selection in selections.iter() {
5259 let selection_start = snapshot.anchor_before(selection.start).text_anchor;
5260 let selection_end = snapshot.anchor_after(selection.end).text_anchor;
5261 if selection_start.buffer_id != selection_end.buffer_id {
5262 continue;
5263 }
5264 if let Some(ranges) =
5265 this.linked_editing_ranges_for(selection_start..selection_end, cx)
5266 {
5267 for (buffer, entries) in ranges {
5268 linked_ranges.entry(buffer).or_default().extend(entries);
5269 }
5270 }
5271 }
5272 }
5273
5274 let mut selections = this.selections.all::<MultiBufferPoint>(cx);
5275 if !this.selections.line_mode {
5276 let display_map = this.display_map.update(cx, |map, cx| map.snapshot(cx));
5277 for selection in &mut selections {
5278 if selection.is_empty() {
5279 let old_head = selection.head();
5280 let mut new_head =
5281 movement::left(&display_map, old_head.to_display_point(&display_map))
5282 .to_point(&display_map);
5283 if let Some((buffer, line_buffer_range)) = display_map
5284 .buffer_snapshot
5285 .buffer_line_for_row(MultiBufferRow(old_head.row))
5286 {
5287 let indent_size =
5288 buffer.indent_size_for_line(line_buffer_range.start.row);
5289 let indent_len = match indent_size.kind {
5290 IndentKind::Space => {
5291 buffer.settings_at(line_buffer_range.start, cx).tab_size
5292 }
5293 IndentKind::Tab => NonZeroU32::new(1).unwrap(),
5294 };
5295 if old_head.column <= indent_size.len && old_head.column > 0 {
5296 let indent_len = indent_len.get();
5297 new_head = cmp::min(
5298 new_head,
5299 MultiBufferPoint::new(
5300 old_head.row,
5301 ((old_head.column - 1) / indent_len) * indent_len,
5302 ),
5303 );
5304 }
5305 }
5306
5307 selection.set_head(new_head, SelectionGoal::None);
5308 }
5309 }
5310 }
5311
5312 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
5313 this.insert("", cx);
5314 let empty_str: Arc<str> = Arc::from("");
5315 for (buffer, edits) in linked_ranges {
5316 let snapshot = buffer.read(cx).snapshot();
5317 use text::ToPoint as TP;
5318
5319 let edits = edits
5320 .into_iter()
5321 .map(|range| {
5322 let end_point = TP::to_point(&range.end, &snapshot);
5323 let mut start_point = TP::to_point(&range.start, &snapshot);
5324
5325 if end_point == start_point {
5326 let offset = text::ToOffset::to_offset(&range.start, &snapshot)
5327 .saturating_sub(1);
5328 start_point = TP::to_point(&offset, &snapshot);
5329 };
5330
5331 (start_point..end_point, empty_str.clone())
5332 })
5333 .sorted_by_key(|(range, _)| range.start)
5334 .collect::<Vec<_>>();
5335 buffer.update(cx, |this, cx| {
5336 this.edit(edits, None, cx);
5337 })
5338 }
5339 this.refresh_inline_completion(true, cx);
5340 linked_editing_ranges::refresh_linked_ranges(this, cx);
5341 });
5342 }
5343
5344 pub fn delete(&mut self, _: &Delete, cx: &mut ViewContext<Self>) {
5345 self.transact(cx, |this, cx| {
5346 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
5347 let line_mode = s.line_mode;
5348 s.move_with(|map, selection| {
5349 if selection.is_empty() && !line_mode {
5350 let cursor = movement::right(map, selection.head());
5351 selection.end = cursor;
5352 selection.reversed = true;
5353 selection.goal = SelectionGoal::None;
5354 }
5355 })
5356 });
5357 this.insert("", cx);
5358 this.refresh_inline_completion(true, cx);
5359 });
5360 }
5361
5362 pub fn tab_prev(&mut self, _: &TabPrev, cx: &mut ViewContext<Self>) {
5363 if self.move_to_prev_snippet_tabstop(cx) {
5364 return;
5365 }
5366
5367 self.outdent(&Outdent, cx);
5368 }
5369
5370 pub fn tab(&mut self, _: &Tab, cx: &mut ViewContext<Self>) {
5371 if self.move_to_next_snippet_tabstop(cx) || self.read_only(cx) {
5372 return;
5373 }
5374
5375 let mut selections = self.selections.all_adjusted(cx);
5376 let buffer = self.buffer.read(cx);
5377 let snapshot = buffer.snapshot(cx);
5378 let rows_iter = selections.iter().map(|s| s.head().row);
5379 let suggested_indents = snapshot.suggested_indents(rows_iter, cx);
5380
5381 let mut edits = Vec::new();
5382 let mut prev_edited_row = 0;
5383 let mut row_delta = 0;
5384 for selection in &mut selections {
5385 if selection.start.row != prev_edited_row {
5386 row_delta = 0;
5387 }
5388 prev_edited_row = selection.end.row;
5389
5390 // If the selection is non-empty, then increase the indentation of the selected lines.
5391 if !selection.is_empty() {
5392 row_delta =
5393 Self::indent_selection(buffer, &snapshot, selection, &mut edits, row_delta, cx);
5394 continue;
5395 }
5396
5397 // If the selection is empty and the cursor is in the leading whitespace before the
5398 // suggested indentation, then auto-indent the line.
5399 let cursor = selection.head();
5400 let current_indent = snapshot.indent_size_for_line(MultiBufferRow(cursor.row));
5401 if let Some(suggested_indent) =
5402 suggested_indents.get(&MultiBufferRow(cursor.row)).copied()
5403 {
5404 if cursor.column < suggested_indent.len
5405 && cursor.column <= current_indent.len
5406 && current_indent.len <= suggested_indent.len
5407 {
5408 selection.start = Point::new(cursor.row, suggested_indent.len);
5409 selection.end = selection.start;
5410 if row_delta == 0 {
5411 edits.extend(Buffer::edit_for_indent_size_adjustment(
5412 cursor.row,
5413 current_indent,
5414 suggested_indent,
5415 ));
5416 row_delta = suggested_indent.len - current_indent.len;
5417 }
5418 continue;
5419 }
5420 }
5421
5422 // Otherwise, insert a hard or soft tab.
5423 let settings = buffer.settings_at(cursor, cx);
5424 let tab_size = if settings.hard_tabs {
5425 IndentSize::tab()
5426 } else {
5427 let tab_size = settings.tab_size.get();
5428 let char_column = snapshot
5429 .text_for_range(Point::new(cursor.row, 0)..cursor)
5430 .flat_map(str::chars)
5431 .count()
5432 + row_delta as usize;
5433 let chars_to_next_tab_stop = tab_size - (char_column as u32 % tab_size);
5434 IndentSize::spaces(chars_to_next_tab_stop)
5435 };
5436 selection.start = Point::new(cursor.row, cursor.column + row_delta + tab_size.len);
5437 selection.end = selection.start;
5438 edits.push((cursor..cursor, tab_size.chars().collect::<String>()));
5439 row_delta += tab_size.len;
5440 }
5441
5442 self.transact(cx, |this, cx| {
5443 this.buffer.update(cx, |b, cx| b.edit(edits, None, cx));
5444 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
5445 this.refresh_inline_completion(true, cx);
5446 });
5447 }
5448
5449 pub fn indent(&mut self, _: &Indent, cx: &mut ViewContext<Self>) {
5450 if self.read_only(cx) {
5451 return;
5452 }
5453 let mut selections = self.selections.all::<Point>(cx);
5454 let mut prev_edited_row = 0;
5455 let mut row_delta = 0;
5456 let mut edits = Vec::new();
5457 let buffer = self.buffer.read(cx);
5458 let snapshot = buffer.snapshot(cx);
5459 for selection in &mut selections {
5460 if selection.start.row != prev_edited_row {
5461 row_delta = 0;
5462 }
5463 prev_edited_row = selection.end.row;
5464
5465 row_delta =
5466 Self::indent_selection(buffer, &snapshot, selection, &mut edits, row_delta, cx);
5467 }
5468
5469 self.transact(cx, |this, cx| {
5470 this.buffer.update(cx, |b, cx| b.edit(edits, None, cx));
5471 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
5472 });
5473 }
5474
5475 fn indent_selection(
5476 buffer: &MultiBuffer,
5477 snapshot: &MultiBufferSnapshot,
5478 selection: &mut Selection<Point>,
5479 edits: &mut Vec<(Range<Point>, String)>,
5480 delta_for_start_row: u32,
5481 cx: &AppContext,
5482 ) -> u32 {
5483 let settings = buffer.settings_at(selection.start, cx);
5484 let tab_size = settings.tab_size.get();
5485 let indent_kind = if settings.hard_tabs {
5486 IndentKind::Tab
5487 } else {
5488 IndentKind::Space
5489 };
5490 let mut start_row = selection.start.row;
5491 let mut end_row = selection.end.row + 1;
5492
5493 // If a selection ends at the beginning of a line, don't indent
5494 // that last line.
5495 if selection.end.column == 0 && selection.end.row > selection.start.row {
5496 end_row -= 1;
5497 }
5498
5499 // Avoid re-indenting a row that has already been indented by a
5500 // previous selection, but still update this selection's column
5501 // to reflect that indentation.
5502 if delta_for_start_row > 0 {
5503 start_row += 1;
5504 selection.start.column += delta_for_start_row;
5505 if selection.end.row == selection.start.row {
5506 selection.end.column += delta_for_start_row;
5507 }
5508 }
5509
5510 let mut delta_for_end_row = 0;
5511 let has_multiple_rows = start_row + 1 != end_row;
5512 for row in start_row..end_row {
5513 let current_indent = snapshot.indent_size_for_line(MultiBufferRow(row));
5514 let indent_delta = match (current_indent.kind, indent_kind) {
5515 (IndentKind::Space, IndentKind::Space) => {
5516 let columns_to_next_tab_stop = tab_size - (current_indent.len % tab_size);
5517 IndentSize::spaces(columns_to_next_tab_stop)
5518 }
5519 (IndentKind::Tab, IndentKind::Space) => IndentSize::spaces(tab_size),
5520 (_, IndentKind::Tab) => IndentSize::tab(),
5521 };
5522
5523 let start = if has_multiple_rows || current_indent.len < selection.start.column {
5524 0
5525 } else {
5526 selection.start.column
5527 };
5528 let row_start = Point::new(row, start);
5529 edits.push((
5530 row_start..row_start,
5531 indent_delta.chars().collect::<String>(),
5532 ));
5533
5534 // Update this selection's endpoints to reflect the indentation.
5535 if row == selection.start.row {
5536 selection.start.column += indent_delta.len;
5537 }
5538 if row == selection.end.row {
5539 selection.end.column += indent_delta.len;
5540 delta_for_end_row = indent_delta.len;
5541 }
5542 }
5543
5544 if selection.start.row == selection.end.row {
5545 delta_for_start_row + delta_for_end_row
5546 } else {
5547 delta_for_end_row
5548 }
5549 }
5550
5551 pub fn outdent(&mut self, _: &Outdent, cx: &mut ViewContext<Self>) {
5552 if self.read_only(cx) {
5553 return;
5554 }
5555 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
5556 let selections = self.selections.all::<Point>(cx);
5557 let mut deletion_ranges = Vec::new();
5558 let mut last_outdent = None;
5559 {
5560 let buffer = self.buffer.read(cx);
5561 let snapshot = buffer.snapshot(cx);
5562 for selection in &selections {
5563 let settings = buffer.settings_at(selection.start, cx);
5564 let tab_size = settings.tab_size.get();
5565 let mut rows = selection.spanned_rows(false, &display_map);
5566
5567 // Avoid re-outdenting a row that has already been outdented by a
5568 // previous selection.
5569 if let Some(last_row) = last_outdent {
5570 if last_row == rows.start {
5571 rows.start = rows.start.next_row();
5572 }
5573 }
5574 let has_multiple_rows = rows.len() > 1;
5575 for row in rows.iter_rows() {
5576 let indent_size = snapshot.indent_size_for_line(row);
5577 if indent_size.len > 0 {
5578 let deletion_len = match indent_size.kind {
5579 IndentKind::Space => {
5580 let columns_to_prev_tab_stop = indent_size.len % tab_size;
5581 if columns_to_prev_tab_stop == 0 {
5582 tab_size
5583 } else {
5584 columns_to_prev_tab_stop
5585 }
5586 }
5587 IndentKind::Tab => 1,
5588 };
5589 let start = if has_multiple_rows
5590 || deletion_len > selection.start.column
5591 || indent_size.len < selection.start.column
5592 {
5593 0
5594 } else {
5595 selection.start.column - deletion_len
5596 };
5597 deletion_ranges.push(
5598 Point::new(row.0, start)..Point::new(row.0, start + deletion_len),
5599 );
5600 last_outdent = Some(row);
5601 }
5602 }
5603 }
5604 }
5605
5606 self.transact(cx, |this, cx| {
5607 this.buffer.update(cx, |buffer, cx| {
5608 let empty_str: Arc<str> = "".into();
5609 buffer.edit(
5610 deletion_ranges
5611 .into_iter()
5612 .map(|range| (range, empty_str.clone())),
5613 None,
5614 cx,
5615 );
5616 });
5617 let selections = this.selections.all::<usize>(cx);
5618 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
5619 });
5620 }
5621
5622 pub fn delete_line(&mut self, _: &DeleteLine, cx: &mut ViewContext<Self>) {
5623 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
5624 let selections = self.selections.all::<Point>(cx);
5625
5626 let mut new_cursors = Vec::new();
5627 let mut edit_ranges = Vec::new();
5628 let mut selections = selections.iter().peekable();
5629 while let Some(selection) = selections.next() {
5630 let mut rows = selection.spanned_rows(false, &display_map);
5631 let goal_display_column = selection.head().to_display_point(&display_map).column();
5632
5633 // Accumulate contiguous regions of rows that we want to delete.
5634 while let Some(next_selection) = selections.peek() {
5635 let next_rows = next_selection.spanned_rows(false, &display_map);
5636 if next_rows.start <= rows.end {
5637 rows.end = next_rows.end;
5638 selections.next().unwrap();
5639 } else {
5640 break;
5641 }
5642 }
5643
5644 let buffer = &display_map.buffer_snapshot;
5645 let mut edit_start = Point::new(rows.start.0, 0).to_offset(buffer);
5646 let edit_end;
5647 let cursor_buffer_row;
5648 if buffer.max_point().row >= rows.end.0 {
5649 // If there's a line after the range, delete the \n from the end of the row range
5650 // and position the cursor on the next line.
5651 edit_end = Point::new(rows.end.0, 0).to_offset(buffer);
5652 cursor_buffer_row = rows.end;
5653 } else {
5654 // If there isn't a line after the range, delete the \n from the line before the
5655 // start of the row range and position the cursor there.
5656 edit_start = edit_start.saturating_sub(1);
5657 edit_end = buffer.len();
5658 cursor_buffer_row = rows.start.previous_row();
5659 }
5660
5661 let mut cursor = Point::new(cursor_buffer_row.0, 0).to_display_point(&display_map);
5662 *cursor.column_mut() =
5663 cmp::min(goal_display_column, display_map.line_len(cursor.row()));
5664
5665 new_cursors.push((
5666 selection.id,
5667 buffer.anchor_after(cursor.to_point(&display_map)),
5668 ));
5669 edit_ranges.push(edit_start..edit_end);
5670 }
5671
5672 self.transact(cx, |this, cx| {
5673 let buffer = this.buffer.update(cx, |buffer, cx| {
5674 let empty_str: Arc<str> = "".into();
5675 buffer.edit(
5676 edit_ranges
5677 .into_iter()
5678 .map(|range| (range, empty_str.clone())),
5679 None,
5680 cx,
5681 );
5682 buffer.snapshot(cx)
5683 });
5684 let new_selections = new_cursors
5685 .into_iter()
5686 .map(|(id, cursor)| {
5687 let cursor = cursor.to_point(&buffer);
5688 Selection {
5689 id,
5690 start: cursor,
5691 end: cursor,
5692 reversed: false,
5693 goal: SelectionGoal::None,
5694 }
5695 })
5696 .collect();
5697
5698 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
5699 s.select(new_selections);
5700 });
5701 });
5702 }
5703
5704 pub fn join_lines(&mut self, _: &JoinLines, cx: &mut ViewContext<Self>) {
5705 if self.read_only(cx) {
5706 return;
5707 }
5708 let mut row_ranges = Vec::<Range<MultiBufferRow>>::new();
5709 for selection in self.selections.all::<Point>(cx) {
5710 let start = MultiBufferRow(selection.start.row);
5711 let end = if selection.start.row == selection.end.row {
5712 MultiBufferRow(selection.start.row + 1)
5713 } else {
5714 MultiBufferRow(selection.end.row)
5715 };
5716
5717 if let Some(last_row_range) = row_ranges.last_mut() {
5718 if start <= last_row_range.end {
5719 last_row_range.end = end;
5720 continue;
5721 }
5722 }
5723 row_ranges.push(start..end);
5724 }
5725
5726 let snapshot = self.buffer.read(cx).snapshot(cx);
5727 let mut cursor_positions = Vec::new();
5728 for row_range in &row_ranges {
5729 let anchor = snapshot.anchor_before(Point::new(
5730 row_range.end.previous_row().0,
5731 snapshot.line_len(row_range.end.previous_row()),
5732 ));
5733 cursor_positions.push(anchor..anchor);
5734 }
5735
5736 self.transact(cx, |this, cx| {
5737 for row_range in row_ranges.into_iter().rev() {
5738 for row in row_range.iter_rows().rev() {
5739 let end_of_line = Point::new(row.0, snapshot.line_len(row));
5740 let next_line_row = row.next_row();
5741 let indent = snapshot.indent_size_for_line(next_line_row);
5742 let start_of_next_line = Point::new(next_line_row.0, indent.len);
5743
5744 let replace = if snapshot.line_len(next_line_row) > indent.len {
5745 " "
5746 } else {
5747 ""
5748 };
5749
5750 this.buffer.update(cx, |buffer, cx| {
5751 buffer.edit([(end_of_line..start_of_next_line, replace)], None, cx)
5752 });
5753 }
5754 }
5755
5756 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
5757 s.select_anchor_ranges(cursor_positions)
5758 });
5759 });
5760 }
5761
5762 pub fn sort_lines_case_sensitive(
5763 &mut self,
5764 _: &SortLinesCaseSensitive,
5765 cx: &mut ViewContext<Self>,
5766 ) {
5767 self.manipulate_lines(cx, |lines| lines.sort())
5768 }
5769
5770 pub fn sort_lines_case_insensitive(
5771 &mut self,
5772 _: &SortLinesCaseInsensitive,
5773 cx: &mut ViewContext<Self>,
5774 ) {
5775 self.manipulate_lines(cx, |lines| lines.sort_by_key(|line| line.to_lowercase()))
5776 }
5777
5778 pub fn unique_lines_case_insensitive(
5779 &mut self,
5780 _: &UniqueLinesCaseInsensitive,
5781 cx: &mut ViewContext<Self>,
5782 ) {
5783 self.manipulate_lines(cx, |lines| {
5784 let mut seen = HashSet::default();
5785 lines.retain(|line| seen.insert(line.to_lowercase()));
5786 })
5787 }
5788
5789 pub fn unique_lines_case_sensitive(
5790 &mut self,
5791 _: &UniqueLinesCaseSensitive,
5792 cx: &mut ViewContext<Self>,
5793 ) {
5794 self.manipulate_lines(cx, |lines| {
5795 let mut seen = HashSet::default();
5796 lines.retain(|line| seen.insert(*line));
5797 })
5798 }
5799
5800 pub fn revert_selected_hunks(&mut self, _: &RevertSelectedHunks, cx: &mut ViewContext<Self>) {
5801 let revert_changes = self.gather_revert_changes(&self.selections.disjoint_anchors(), cx);
5802 if !revert_changes.is_empty() {
5803 self.transact(cx, |editor, cx| {
5804 editor.buffer().update(cx, |multi_buffer, cx| {
5805 for (buffer_id, changes) in revert_changes {
5806 if let Some(buffer) = multi_buffer.buffer(buffer_id) {
5807 buffer.update(cx, |buffer, cx| {
5808 buffer.edit(
5809 changes.into_iter().map(|(range, text)| {
5810 (range, text.to_string().map(Arc::<str>::from))
5811 }),
5812 None,
5813 cx,
5814 );
5815 });
5816 }
5817 }
5818 });
5819 editor.change_selections(None, cx, |selections| selections.refresh());
5820 });
5821 }
5822 }
5823
5824 pub fn open_active_item_in_terminal(&mut self, _: &OpenInTerminal, cx: &mut ViewContext<Self>) {
5825 if let Some(working_directory) = self.active_excerpt(cx).and_then(|(_, buffer, _)| {
5826 let project_path = buffer.read(cx).project_path(cx)?;
5827 let project = self.project.as_ref()?.read(cx);
5828 let entry = project.entry_for_path(&project_path, cx)?;
5829 let abs_path = project.absolute_path(&project_path, cx)?;
5830 let parent = if entry.is_symlink {
5831 abs_path.canonicalize().ok()?
5832 } else {
5833 abs_path
5834 }
5835 .parent()?
5836 .to_path_buf();
5837 Some(parent)
5838 }) {
5839 cx.dispatch_action(OpenTerminal { working_directory }.boxed_clone());
5840 }
5841 }
5842
5843 fn gather_revert_changes(
5844 &mut self,
5845 selections: &[Selection<Anchor>],
5846 cx: &mut ViewContext<'_, Editor>,
5847 ) -> HashMap<BufferId, Vec<(Range<text::Anchor>, Rope)>> {
5848 let mut revert_changes = HashMap::default();
5849 self.buffer.update(cx, |multi_buffer, cx| {
5850 let multi_buffer_snapshot = multi_buffer.snapshot(cx);
5851 for hunk in hunks_for_selections(&multi_buffer_snapshot, selections) {
5852 Self::prepare_revert_change(&mut revert_changes, &multi_buffer, &hunk, cx);
5853 }
5854 });
5855 revert_changes
5856 }
5857
5858 fn prepare_revert_change(
5859 revert_changes: &mut HashMap<BufferId, Vec<(Range<text::Anchor>, Rope)>>,
5860 multi_buffer: &MultiBuffer,
5861 hunk: &DiffHunk<MultiBufferRow>,
5862 cx: &mut AppContext,
5863 ) -> Option<()> {
5864 let buffer = multi_buffer.buffer(hunk.buffer_id)?;
5865 let buffer = buffer.read(cx);
5866 let original_text = buffer.diff_base()?.slice(hunk.diff_base_byte_range.clone());
5867 let buffer_snapshot = buffer.snapshot();
5868 let buffer_revert_changes = revert_changes.entry(buffer.remote_id()).or_default();
5869 if let Err(i) = buffer_revert_changes.binary_search_by(|probe| {
5870 probe
5871 .0
5872 .start
5873 .cmp(&hunk.buffer_range.start, &buffer_snapshot)
5874 .then(probe.0.end.cmp(&hunk.buffer_range.end, &buffer_snapshot))
5875 }) {
5876 buffer_revert_changes.insert(i, (hunk.buffer_range.clone(), original_text));
5877 Some(())
5878 } else {
5879 None
5880 }
5881 }
5882
5883 pub fn reverse_lines(&mut self, _: &ReverseLines, cx: &mut ViewContext<Self>) {
5884 self.manipulate_lines(cx, |lines| lines.reverse())
5885 }
5886
5887 pub fn shuffle_lines(&mut self, _: &ShuffleLines, cx: &mut ViewContext<Self>) {
5888 self.manipulate_lines(cx, |lines| lines.shuffle(&mut thread_rng()))
5889 }
5890
5891 fn manipulate_lines<Fn>(&mut self, cx: &mut ViewContext<Self>, mut callback: Fn)
5892 where
5893 Fn: FnMut(&mut Vec<&str>),
5894 {
5895 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
5896 let buffer = self.buffer.read(cx).snapshot(cx);
5897
5898 let mut edits = Vec::new();
5899
5900 let selections = self.selections.all::<Point>(cx);
5901 let mut selections = selections.iter().peekable();
5902 let mut contiguous_row_selections = Vec::new();
5903 let mut new_selections = Vec::new();
5904 let mut added_lines = 0;
5905 let mut removed_lines = 0;
5906
5907 while let Some(selection) = selections.next() {
5908 let (start_row, end_row) = consume_contiguous_rows(
5909 &mut contiguous_row_selections,
5910 selection,
5911 &display_map,
5912 &mut selections,
5913 );
5914
5915 let start_point = Point::new(start_row.0, 0);
5916 let end_point = Point::new(
5917 end_row.previous_row().0,
5918 buffer.line_len(end_row.previous_row()),
5919 );
5920 let text = buffer
5921 .text_for_range(start_point..end_point)
5922 .collect::<String>();
5923
5924 let mut lines = text.split('\n').collect_vec();
5925
5926 let lines_before = lines.len();
5927 callback(&mut lines);
5928 let lines_after = lines.len();
5929
5930 edits.push((start_point..end_point, lines.join("\n")));
5931
5932 // Selections must change based on added and removed line count
5933 let start_row =
5934 MultiBufferRow(start_point.row + added_lines as u32 - removed_lines as u32);
5935 let end_row = MultiBufferRow(start_row.0 + lines_after.saturating_sub(1) as u32);
5936 new_selections.push(Selection {
5937 id: selection.id,
5938 start: start_row,
5939 end: end_row,
5940 goal: SelectionGoal::None,
5941 reversed: selection.reversed,
5942 });
5943
5944 if lines_after > lines_before {
5945 added_lines += lines_after - lines_before;
5946 } else if lines_before > lines_after {
5947 removed_lines += lines_before - lines_after;
5948 }
5949 }
5950
5951 self.transact(cx, |this, cx| {
5952 let buffer = this.buffer.update(cx, |buffer, cx| {
5953 buffer.edit(edits, None, cx);
5954 buffer.snapshot(cx)
5955 });
5956
5957 // Recalculate offsets on newly edited buffer
5958 let new_selections = new_selections
5959 .iter()
5960 .map(|s| {
5961 let start_point = Point::new(s.start.0, 0);
5962 let end_point = Point::new(s.end.0, buffer.line_len(s.end));
5963 Selection {
5964 id: s.id,
5965 start: buffer.point_to_offset(start_point),
5966 end: buffer.point_to_offset(end_point),
5967 goal: s.goal,
5968 reversed: s.reversed,
5969 }
5970 })
5971 .collect();
5972
5973 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
5974 s.select(new_selections);
5975 });
5976
5977 this.request_autoscroll(Autoscroll::fit(), cx);
5978 });
5979 }
5980
5981 pub fn convert_to_upper_case(&mut self, _: &ConvertToUpperCase, cx: &mut ViewContext<Self>) {
5982 self.manipulate_text(cx, |text| text.to_uppercase())
5983 }
5984
5985 pub fn convert_to_lower_case(&mut self, _: &ConvertToLowerCase, cx: &mut ViewContext<Self>) {
5986 self.manipulate_text(cx, |text| text.to_lowercase())
5987 }
5988
5989 pub fn convert_to_title_case(&mut self, _: &ConvertToTitleCase, cx: &mut ViewContext<Self>) {
5990 self.manipulate_text(cx, |text| {
5991 // Hack to get around the fact that to_case crate doesn't support '\n' as a word boundary
5992 // https://github.com/rutrum/convert-case/issues/16
5993 text.split('\n')
5994 .map(|line| line.to_case(Case::Title))
5995 .join("\n")
5996 })
5997 }
5998
5999 pub fn convert_to_snake_case(&mut self, _: &ConvertToSnakeCase, cx: &mut ViewContext<Self>) {
6000 self.manipulate_text(cx, |text| text.to_case(Case::Snake))
6001 }
6002
6003 pub fn convert_to_kebab_case(&mut self, _: &ConvertToKebabCase, cx: &mut ViewContext<Self>) {
6004 self.manipulate_text(cx, |text| text.to_case(Case::Kebab))
6005 }
6006
6007 pub fn convert_to_upper_camel_case(
6008 &mut self,
6009 _: &ConvertToUpperCamelCase,
6010 cx: &mut ViewContext<Self>,
6011 ) {
6012 self.manipulate_text(cx, |text| {
6013 // Hack to get around the fact that to_case crate doesn't support '\n' as a word boundary
6014 // https://github.com/rutrum/convert-case/issues/16
6015 text.split('\n')
6016 .map(|line| line.to_case(Case::UpperCamel))
6017 .join("\n")
6018 })
6019 }
6020
6021 pub fn convert_to_lower_camel_case(
6022 &mut self,
6023 _: &ConvertToLowerCamelCase,
6024 cx: &mut ViewContext<Self>,
6025 ) {
6026 self.manipulate_text(cx, |text| text.to_case(Case::Camel))
6027 }
6028
6029 pub fn convert_to_opposite_case(
6030 &mut self,
6031 _: &ConvertToOppositeCase,
6032 cx: &mut ViewContext<Self>,
6033 ) {
6034 self.manipulate_text(cx, |text| {
6035 text.chars()
6036 .fold(String::with_capacity(text.len()), |mut t, c| {
6037 if c.is_uppercase() {
6038 t.extend(c.to_lowercase());
6039 } else {
6040 t.extend(c.to_uppercase());
6041 }
6042 t
6043 })
6044 })
6045 }
6046
6047 fn manipulate_text<Fn>(&mut self, cx: &mut ViewContext<Self>, mut callback: Fn)
6048 where
6049 Fn: FnMut(&str) -> String,
6050 {
6051 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
6052 let buffer = self.buffer.read(cx).snapshot(cx);
6053
6054 let mut new_selections = Vec::new();
6055 let mut edits = Vec::new();
6056 let mut selection_adjustment = 0i32;
6057
6058 for selection in self.selections.all::<usize>(cx) {
6059 let selection_is_empty = selection.is_empty();
6060
6061 let (start, end) = if selection_is_empty {
6062 let word_range = movement::surrounding_word(
6063 &display_map,
6064 selection.start.to_display_point(&display_map),
6065 );
6066 let start = word_range.start.to_offset(&display_map, Bias::Left);
6067 let end = word_range.end.to_offset(&display_map, Bias::Left);
6068 (start, end)
6069 } else {
6070 (selection.start, selection.end)
6071 };
6072
6073 let text = buffer.text_for_range(start..end).collect::<String>();
6074 let old_length = text.len() as i32;
6075 let text = callback(&text);
6076
6077 new_selections.push(Selection {
6078 start: (start as i32 - selection_adjustment) as usize,
6079 end: ((start + text.len()) as i32 - selection_adjustment) as usize,
6080 goal: SelectionGoal::None,
6081 ..selection
6082 });
6083
6084 selection_adjustment += old_length - text.len() as i32;
6085
6086 edits.push((start..end, text));
6087 }
6088
6089 self.transact(cx, |this, cx| {
6090 this.buffer.update(cx, |buffer, cx| {
6091 buffer.edit(edits, None, cx);
6092 });
6093
6094 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6095 s.select(new_selections);
6096 });
6097
6098 this.request_autoscroll(Autoscroll::fit(), cx);
6099 });
6100 }
6101
6102 pub fn duplicate_line(&mut self, upwards: bool, cx: &mut ViewContext<Self>) {
6103 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
6104 let buffer = &display_map.buffer_snapshot;
6105 let selections = self.selections.all::<Point>(cx);
6106
6107 let mut edits = Vec::new();
6108 let mut selections_iter = selections.iter().peekable();
6109 while let Some(selection) = selections_iter.next() {
6110 // Avoid duplicating the same lines twice.
6111 let mut rows = selection.spanned_rows(false, &display_map);
6112
6113 while let Some(next_selection) = selections_iter.peek() {
6114 let next_rows = next_selection.spanned_rows(false, &display_map);
6115 if next_rows.start < rows.end {
6116 rows.end = next_rows.end;
6117 selections_iter.next().unwrap();
6118 } else {
6119 break;
6120 }
6121 }
6122
6123 // Copy the text from the selected row region and splice it either at the start
6124 // or end of the region.
6125 let start = Point::new(rows.start.0, 0);
6126 let end = Point::new(
6127 rows.end.previous_row().0,
6128 buffer.line_len(rows.end.previous_row()),
6129 );
6130 let text = buffer
6131 .text_for_range(start..end)
6132 .chain(Some("\n"))
6133 .collect::<String>();
6134 let insert_location = if upwards {
6135 Point::new(rows.end.0, 0)
6136 } else {
6137 start
6138 };
6139 edits.push((insert_location..insert_location, text));
6140 }
6141
6142 self.transact(cx, |this, cx| {
6143 this.buffer.update(cx, |buffer, cx| {
6144 buffer.edit(edits, None, cx);
6145 });
6146
6147 this.request_autoscroll(Autoscroll::fit(), cx);
6148 });
6149 }
6150
6151 pub fn duplicate_line_up(&mut self, _: &DuplicateLineUp, cx: &mut ViewContext<Self>) {
6152 self.duplicate_line(true, cx);
6153 }
6154
6155 pub fn duplicate_line_down(&mut self, _: &DuplicateLineDown, cx: &mut ViewContext<Self>) {
6156 self.duplicate_line(false, cx);
6157 }
6158
6159 pub fn move_line_up(&mut self, _: &MoveLineUp, cx: &mut ViewContext<Self>) {
6160 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
6161 let buffer = self.buffer.read(cx).snapshot(cx);
6162
6163 let mut edits = Vec::new();
6164 let mut unfold_ranges = Vec::new();
6165 let mut refold_ranges = Vec::new();
6166
6167 let selections = self.selections.all::<Point>(cx);
6168 let mut selections = selections.iter().peekable();
6169 let mut contiguous_row_selections = Vec::new();
6170 let mut new_selections = Vec::new();
6171
6172 while let Some(selection) = selections.next() {
6173 // Find all the selections that span a contiguous row range
6174 let (start_row, end_row) = consume_contiguous_rows(
6175 &mut contiguous_row_selections,
6176 selection,
6177 &display_map,
6178 &mut selections,
6179 );
6180
6181 // Move the text spanned by the row range to be before the line preceding the row range
6182 if start_row.0 > 0 {
6183 let range_to_move = Point::new(
6184 start_row.previous_row().0,
6185 buffer.line_len(start_row.previous_row()),
6186 )
6187 ..Point::new(
6188 end_row.previous_row().0,
6189 buffer.line_len(end_row.previous_row()),
6190 );
6191 let insertion_point = display_map
6192 .prev_line_boundary(Point::new(start_row.previous_row().0, 0))
6193 .0;
6194
6195 // Don't move lines across excerpts
6196 if buffer
6197 .excerpt_boundaries_in_range((
6198 Bound::Excluded(insertion_point),
6199 Bound::Included(range_to_move.end),
6200 ))
6201 .next()
6202 .is_none()
6203 {
6204 let text = buffer
6205 .text_for_range(range_to_move.clone())
6206 .flat_map(|s| s.chars())
6207 .skip(1)
6208 .chain(['\n'])
6209 .collect::<String>();
6210
6211 edits.push((
6212 buffer.anchor_after(range_to_move.start)
6213 ..buffer.anchor_before(range_to_move.end),
6214 String::new(),
6215 ));
6216 let insertion_anchor = buffer.anchor_after(insertion_point);
6217 edits.push((insertion_anchor..insertion_anchor, text));
6218
6219 let row_delta = range_to_move.start.row - insertion_point.row + 1;
6220
6221 // Move selections up
6222 new_selections.extend(contiguous_row_selections.drain(..).map(
6223 |mut selection| {
6224 selection.start.row -= row_delta;
6225 selection.end.row -= row_delta;
6226 selection
6227 },
6228 ));
6229
6230 // Move folds up
6231 unfold_ranges.push(range_to_move.clone());
6232 for fold in display_map.folds_in_range(
6233 buffer.anchor_before(range_to_move.start)
6234 ..buffer.anchor_after(range_to_move.end),
6235 ) {
6236 let mut start = fold.range.start.to_point(&buffer);
6237 let mut end = fold.range.end.to_point(&buffer);
6238 start.row -= row_delta;
6239 end.row -= row_delta;
6240 refold_ranges.push((start..end, fold.placeholder.clone()));
6241 }
6242 }
6243 }
6244
6245 // If we didn't move line(s), preserve the existing selections
6246 new_selections.append(&mut contiguous_row_selections);
6247 }
6248
6249 self.transact(cx, |this, cx| {
6250 this.unfold_ranges(unfold_ranges, true, true, cx);
6251 this.buffer.update(cx, |buffer, cx| {
6252 for (range, text) in edits {
6253 buffer.edit([(range, text)], None, cx);
6254 }
6255 });
6256 this.fold_ranges(refold_ranges, true, cx);
6257 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6258 s.select(new_selections);
6259 })
6260 });
6261 }
6262
6263 pub fn move_line_down(&mut self, _: &MoveLineDown, cx: &mut ViewContext<Self>) {
6264 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
6265 let buffer = self.buffer.read(cx).snapshot(cx);
6266
6267 let mut edits = Vec::new();
6268 let mut unfold_ranges = Vec::new();
6269 let mut refold_ranges = Vec::new();
6270
6271 let selections = self.selections.all::<Point>(cx);
6272 let mut selections = selections.iter().peekable();
6273 let mut contiguous_row_selections = Vec::new();
6274 let mut new_selections = Vec::new();
6275
6276 while let Some(selection) = selections.next() {
6277 // Find all the selections that span a contiguous row range
6278 let (start_row, end_row) = consume_contiguous_rows(
6279 &mut contiguous_row_selections,
6280 selection,
6281 &display_map,
6282 &mut selections,
6283 );
6284
6285 // Move the text spanned by the row range to be after the last line of the row range
6286 if end_row.0 <= buffer.max_point().row {
6287 let range_to_move =
6288 MultiBufferPoint::new(start_row.0, 0)..MultiBufferPoint::new(end_row.0, 0);
6289 let insertion_point = display_map
6290 .next_line_boundary(MultiBufferPoint::new(end_row.0, 0))
6291 .0;
6292
6293 // Don't move lines across excerpt boundaries
6294 if buffer
6295 .excerpt_boundaries_in_range((
6296 Bound::Excluded(range_to_move.start),
6297 Bound::Included(insertion_point),
6298 ))
6299 .next()
6300 .is_none()
6301 {
6302 let mut text = String::from("\n");
6303 text.extend(buffer.text_for_range(range_to_move.clone()));
6304 text.pop(); // Drop trailing newline
6305 edits.push((
6306 buffer.anchor_after(range_to_move.start)
6307 ..buffer.anchor_before(range_to_move.end),
6308 String::new(),
6309 ));
6310 let insertion_anchor = buffer.anchor_after(insertion_point);
6311 edits.push((insertion_anchor..insertion_anchor, text));
6312
6313 let row_delta = insertion_point.row - range_to_move.end.row + 1;
6314
6315 // Move selections down
6316 new_selections.extend(contiguous_row_selections.drain(..).map(
6317 |mut selection| {
6318 selection.start.row += row_delta;
6319 selection.end.row += row_delta;
6320 selection
6321 },
6322 ));
6323
6324 // Move folds down
6325 unfold_ranges.push(range_to_move.clone());
6326 for fold in display_map.folds_in_range(
6327 buffer.anchor_before(range_to_move.start)
6328 ..buffer.anchor_after(range_to_move.end),
6329 ) {
6330 let mut start = fold.range.start.to_point(&buffer);
6331 let mut end = fold.range.end.to_point(&buffer);
6332 start.row += row_delta;
6333 end.row += row_delta;
6334 refold_ranges.push((start..end, fold.placeholder.clone()));
6335 }
6336 }
6337 }
6338
6339 // If we didn't move line(s), preserve the existing selections
6340 new_selections.append(&mut contiguous_row_selections);
6341 }
6342
6343 self.transact(cx, |this, cx| {
6344 this.unfold_ranges(unfold_ranges, true, true, cx);
6345 this.buffer.update(cx, |buffer, cx| {
6346 for (range, text) in edits {
6347 buffer.edit([(range, text)], None, cx);
6348 }
6349 });
6350 this.fold_ranges(refold_ranges, true, cx);
6351 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(new_selections));
6352 });
6353 }
6354
6355 pub fn transpose(&mut self, _: &Transpose, cx: &mut ViewContext<Self>) {
6356 let text_layout_details = &self.text_layout_details(cx);
6357 self.transact(cx, |this, cx| {
6358 let edits = this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6359 let mut edits: Vec<(Range<usize>, String)> = Default::default();
6360 let line_mode = s.line_mode;
6361 s.move_with(|display_map, selection| {
6362 if !selection.is_empty() || line_mode {
6363 return;
6364 }
6365
6366 let mut head = selection.head();
6367 let mut transpose_offset = head.to_offset(display_map, Bias::Right);
6368 if head.column() == display_map.line_len(head.row()) {
6369 transpose_offset = display_map
6370 .buffer_snapshot
6371 .clip_offset(transpose_offset.saturating_sub(1), Bias::Left);
6372 }
6373
6374 if transpose_offset == 0 {
6375 return;
6376 }
6377
6378 *head.column_mut() += 1;
6379 head = display_map.clip_point(head, Bias::Right);
6380 let goal = SelectionGoal::HorizontalPosition(
6381 display_map
6382 .x_for_display_point(head, &text_layout_details)
6383 .into(),
6384 );
6385 selection.collapse_to(head, goal);
6386
6387 let transpose_start = display_map
6388 .buffer_snapshot
6389 .clip_offset(transpose_offset.saturating_sub(1), Bias::Left);
6390 if edits.last().map_or(true, |e| e.0.end <= transpose_start) {
6391 let transpose_end = display_map
6392 .buffer_snapshot
6393 .clip_offset(transpose_offset + 1, Bias::Right);
6394 if let Some(ch) =
6395 display_map.buffer_snapshot.chars_at(transpose_start).next()
6396 {
6397 edits.push((transpose_start..transpose_offset, String::new()));
6398 edits.push((transpose_end..transpose_end, ch.to_string()));
6399 }
6400 }
6401 });
6402 edits
6403 });
6404 this.buffer
6405 .update(cx, |buffer, cx| buffer.edit(edits, None, cx));
6406 let selections = this.selections.all::<usize>(cx);
6407 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6408 s.select(selections);
6409 });
6410 });
6411 }
6412
6413 pub fn cut(&mut self, _: &Cut, cx: &mut ViewContext<Self>) {
6414 let mut text = String::new();
6415 let buffer = self.buffer.read(cx).snapshot(cx);
6416 let mut selections = self.selections.all::<Point>(cx);
6417 let mut clipboard_selections = Vec::with_capacity(selections.len());
6418 {
6419 let max_point = buffer.max_point();
6420 let mut is_first = true;
6421 for selection in &mut selections {
6422 let is_entire_line = selection.is_empty() || self.selections.line_mode;
6423 if is_entire_line {
6424 selection.start = Point::new(selection.start.row, 0);
6425 selection.end = cmp::min(max_point, Point::new(selection.end.row + 1, 0));
6426 selection.goal = SelectionGoal::None;
6427 }
6428 if is_first {
6429 is_first = false;
6430 } else {
6431 text += "\n";
6432 }
6433 let mut len = 0;
6434 for chunk in buffer.text_for_range(selection.start..selection.end) {
6435 text.push_str(chunk);
6436 len += chunk.len();
6437 }
6438 clipboard_selections.push(ClipboardSelection {
6439 len,
6440 is_entire_line,
6441 first_line_indent: buffer
6442 .indent_size_for_line(MultiBufferRow(selection.start.row))
6443 .len,
6444 });
6445 }
6446 }
6447
6448 self.transact(cx, |this, cx| {
6449 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6450 s.select(selections);
6451 });
6452 this.insert("", cx);
6453 cx.write_to_clipboard(ClipboardItem::new(text).with_metadata(clipboard_selections));
6454 });
6455 }
6456
6457 pub fn copy(&mut self, _: &Copy, cx: &mut ViewContext<Self>) {
6458 let selections = self.selections.all::<Point>(cx);
6459 let buffer = self.buffer.read(cx).read(cx);
6460 let mut text = String::new();
6461
6462 let mut clipboard_selections = Vec::with_capacity(selections.len());
6463 {
6464 let max_point = buffer.max_point();
6465 let mut is_first = true;
6466 for selection in selections.iter() {
6467 let mut start = selection.start;
6468 let mut end = selection.end;
6469 let is_entire_line = selection.is_empty() || self.selections.line_mode;
6470 if is_entire_line {
6471 start = Point::new(start.row, 0);
6472 end = cmp::min(max_point, Point::new(end.row + 1, 0));
6473 }
6474 if is_first {
6475 is_first = false;
6476 } else {
6477 text += "\n";
6478 }
6479 let mut len = 0;
6480 for chunk in buffer.text_for_range(start..end) {
6481 text.push_str(chunk);
6482 len += chunk.len();
6483 }
6484 clipboard_selections.push(ClipboardSelection {
6485 len,
6486 is_entire_line,
6487 first_line_indent: buffer.indent_size_for_line(MultiBufferRow(start.row)).len,
6488 });
6489 }
6490 }
6491
6492 cx.write_to_clipboard(ClipboardItem::new(text).with_metadata(clipboard_selections));
6493 }
6494
6495 pub fn do_paste(
6496 &mut self,
6497 text: &String,
6498 clipboard_selections: Option<Vec<ClipboardSelection>>,
6499 handle_entire_lines: bool,
6500 cx: &mut ViewContext<Self>,
6501 ) {
6502 if self.read_only(cx) {
6503 return;
6504 }
6505
6506 let clipboard_text = Cow::Borrowed(text);
6507
6508 self.transact(cx, |this, cx| {
6509 if let Some(mut clipboard_selections) = clipboard_selections {
6510 let old_selections = this.selections.all::<usize>(cx);
6511 let all_selections_were_entire_line =
6512 clipboard_selections.iter().all(|s| s.is_entire_line);
6513 let first_selection_indent_column =
6514 clipboard_selections.first().map(|s| s.first_line_indent);
6515 if clipboard_selections.len() != old_selections.len() {
6516 clipboard_selections.drain(..);
6517 }
6518
6519 this.buffer.update(cx, |buffer, cx| {
6520 let snapshot = buffer.read(cx);
6521 let mut start_offset = 0;
6522 let mut edits = Vec::new();
6523 let mut original_indent_columns = Vec::new();
6524 for (ix, selection) in old_selections.iter().enumerate() {
6525 let to_insert;
6526 let entire_line;
6527 let original_indent_column;
6528 if let Some(clipboard_selection) = clipboard_selections.get(ix) {
6529 let end_offset = start_offset + clipboard_selection.len;
6530 to_insert = &clipboard_text[start_offset..end_offset];
6531 entire_line = clipboard_selection.is_entire_line;
6532 start_offset = end_offset + 1;
6533 original_indent_column = Some(clipboard_selection.first_line_indent);
6534 } else {
6535 to_insert = clipboard_text.as_str();
6536 entire_line = all_selections_were_entire_line;
6537 original_indent_column = first_selection_indent_column
6538 }
6539
6540 // If the corresponding selection was empty when this slice of the
6541 // clipboard text was written, then the entire line containing the
6542 // selection was copied. If this selection is also currently empty,
6543 // then paste the line before the current line of the buffer.
6544 let range = if selection.is_empty() && handle_entire_lines && entire_line {
6545 let column = selection.start.to_point(&snapshot).column as usize;
6546 let line_start = selection.start - column;
6547 line_start..line_start
6548 } else {
6549 selection.range()
6550 };
6551
6552 edits.push((range, to_insert));
6553 original_indent_columns.extend(original_indent_column);
6554 }
6555 drop(snapshot);
6556
6557 buffer.edit(
6558 edits,
6559 Some(AutoindentMode::Block {
6560 original_indent_columns,
6561 }),
6562 cx,
6563 );
6564 });
6565
6566 let selections = this.selections.all::<usize>(cx);
6567 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
6568 } else {
6569 this.insert(&clipboard_text, cx);
6570 }
6571 });
6572 }
6573
6574 pub fn paste(&mut self, _: &Paste, cx: &mut ViewContext<Self>) {
6575 if let Some(item) = cx.read_from_clipboard() {
6576 self.do_paste(
6577 item.text(),
6578 item.metadata::<Vec<ClipboardSelection>>(),
6579 true,
6580 cx,
6581 )
6582 };
6583 }
6584
6585 pub fn undo(&mut self, _: &Undo, cx: &mut ViewContext<Self>) {
6586 if self.read_only(cx) {
6587 return;
6588 }
6589
6590 if let Some(transaction_id) = self.buffer.update(cx, |buffer, cx| buffer.undo(cx)) {
6591 if let Some((selections, _)) =
6592 self.selection_history.transaction(transaction_id).cloned()
6593 {
6594 self.change_selections(None, cx, |s| {
6595 s.select_anchors(selections.to_vec());
6596 });
6597 }
6598 self.request_autoscroll(Autoscroll::fit(), cx);
6599 self.unmark_text(cx);
6600 self.refresh_inline_completion(true, cx);
6601 cx.emit(EditorEvent::Edited { transaction_id });
6602 cx.emit(EditorEvent::TransactionUndone { transaction_id });
6603 }
6604 }
6605
6606 pub fn redo(&mut self, _: &Redo, cx: &mut ViewContext<Self>) {
6607 if self.read_only(cx) {
6608 return;
6609 }
6610
6611 if let Some(transaction_id) = self.buffer.update(cx, |buffer, cx| buffer.redo(cx)) {
6612 if let Some((_, Some(selections))) =
6613 self.selection_history.transaction(transaction_id).cloned()
6614 {
6615 self.change_selections(None, cx, |s| {
6616 s.select_anchors(selections.to_vec());
6617 });
6618 }
6619 self.request_autoscroll(Autoscroll::fit(), cx);
6620 self.unmark_text(cx);
6621 self.refresh_inline_completion(true, cx);
6622 cx.emit(EditorEvent::Edited { transaction_id });
6623 }
6624 }
6625
6626 pub fn finalize_last_transaction(&mut self, cx: &mut ViewContext<Self>) {
6627 self.buffer
6628 .update(cx, |buffer, cx| buffer.finalize_last_transaction(cx));
6629 }
6630
6631 pub fn group_until_transaction(&mut self, tx_id: TransactionId, cx: &mut ViewContext<Self>) {
6632 self.buffer
6633 .update(cx, |buffer, cx| buffer.group_until_transaction(tx_id, cx));
6634 }
6635
6636 pub fn move_left(&mut self, _: &MoveLeft, cx: &mut ViewContext<Self>) {
6637 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6638 let line_mode = s.line_mode;
6639 s.move_with(|map, selection| {
6640 let cursor = if selection.is_empty() && !line_mode {
6641 movement::left(map, selection.start)
6642 } else {
6643 selection.start
6644 };
6645 selection.collapse_to(cursor, SelectionGoal::None);
6646 });
6647 })
6648 }
6649
6650 pub fn select_left(&mut self, _: &SelectLeft, cx: &mut ViewContext<Self>) {
6651 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6652 s.move_heads_with(|map, head, _| (movement::left(map, head), SelectionGoal::None));
6653 })
6654 }
6655
6656 pub fn move_right(&mut self, _: &MoveRight, cx: &mut ViewContext<Self>) {
6657 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6658 let line_mode = s.line_mode;
6659 s.move_with(|map, selection| {
6660 let cursor = if selection.is_empty() && !line_mode {
6661 movement::right(map, selection.end)
6662 } else {
6663 selection.end
6664 };
6665 selection.collapse_to(cursor, SelectionGoal::None)
6666 });
6667 })
6668 }
6669
6670 pub fn select_right(&mut self, _: &SelectRight, cx: &mut ViewContext<Self>) {
6671 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6672 s.move_heads_with(|map, head, _| (movement::right(map, head), SelectionGoal::None));
6673 })
6674 }
6675
6676 pub fn move_up(&mut self, _: &MoveUp, cx: &mut ViewContext<Self>) {
6677 if self.take_rename(true, cx).is_some() {
6678 return;
6679 }
6680
6681 if matches!(self.mode, EditorMode::SingleLine { .. }) {
6682 cx.propagate();
6683 return;
6684 }
6685
6686 let text_layout_details = &self.text_layout_details(cx);
6687 let selection_count = self.selections.count();
6688 let first_selection = self.selections.first_anchor();
6689
6690 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6691 let line_mode = s.line_mode;
6692 s.move_with(|map, selection| {
6693 if !selection.is_empty() && !line_mode {
6694 selection.goal = SelectionGoal::None;
6695 }
6696 let (cursor, goal) = movement::up(
6697 map,
6698 selection.start,
6699 selection.goal,
6700 false,
6701 &text_layout_details,
6702 );
6703 selection.collapse_to(cursor, goal);
6704 });
6705 });
6706
6707 if selection_count == 1 && first_selection.range() == self.selections.first_anchor().range()
6708 {
6709 cx.propagate();
6710 }
6711 }
6712
6713 pub fn move_up_by_lines(&mut self, action: &MoveUpByLines, cx: &mut ViewContext<Self>) {
6714 if self.take_rename(true, cx).is_some() {
6715 return;
6716 }
6717
6718 if matches!(self.mode, EditorMode::SingleLine { .. }) {
6719 cx.propagate();
6720 return;
6721 }
6722
6723 let text_layout_details = &self.text_layout_details(cx);
6724
6725 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6726 let line_mode = s.line_mode;
6727 s.move_with(|map, selection| {
6728 if !selection.is_empty() && !line_mode {
6729 selection.goal = SelectionGoal::None;
6730 }
6731 let (cursor, goal) = movement::up_by_rows(
6732 map,
6733 selection.start,
6734 action.lines,
6735 selection.goal,
6736 false,
6737 &text_layout_details,
6738 );
6739 selection.collapse_to(cursor, goal);
6740 });
6741 })
6742 }
6743
6744 pub fn move_down_by_lines(&mut self, action: &MoveDownByLines, cx: &mut ViewContext<Self>) {
6745 if self.take_rename(true, cx).is_some() {
6746 return;
6747 }
6748
6749 if matches!(self.mode, EditorMode::SingleLine { .. }) {
6750 cx.propagate();
6751 return;
6752 }
6753
6754 let text_layout_details = &self.text_layout_details(cx);
6755
6756 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6757 let line_mode = s.line_mode;
6758 s.move_with(|map, selection| {
6759 if !selection.is_empty() && !line_mode {
6760 selection.goal = SelectionGoal::None;
6761 }
6762 let (cursor, goal) = movement::down_by_rows(
6763 map,
6764 selection.start,
6765 action.lines,
6766 selection.goal,
6767 false,
6768 &text_layout_details,
6769 );
6770 selection.collapse_to(cursor, goal);
6771 });
6772 })
6773 }
6774
6775 pub fn select_down_by_lines(&mut self, action: &SelectDownByLines, cx: &mut ViewContext<Self>) {
6776 let text_layout_details = &self.text_layout_details(cx);
6777 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6778 s.move_heads_with(|map, head, goal| {
6779 movement::down_by_rows(map, head, action.lines, goal, false, &text_layout_details)
6780 })
6781 })
6782 }
6783
6784 pub fn select_up_by_lines(&mut self, action: &SelectUpByLines, cx: &mut ViewContext<Self>) {
6785 let text_layout_details = &self.text_layout_details(cx);
6786 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6787 s.move_heads_with(|map, head, goal| {
6788 movement::up_by_rows(map, head, action.lines, goal, false, &text_layout_details)
6789 })
6790 })
6791 }
6792
6793 pub fn select_page_up(&mut self, _: &SelectPageUp, cx: &mut ViewContext<Self>) {
6794 let Some(row_count) = self.visible_row_count() else {
6795 return;
6796 };
6797
6798 let text_layout_details = &self.text_layout_details(cx);
6799
6800 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6801 s.move_heads_with(|map, head, goal| {
6802 movement::up_by_rows(map, head, row_count, goal, false, &text_layout_details)
6803 })
6804 })
6805 }
6806
6807 pub fn move_page_up(&mut self, action: &MovePageUp, cx: &mut ViewContext<Self>) {
6808 if self.take_rename(true, cx).is_some() {
6809 return;
6810 }
6811
6812 if matches!(self.mode, EditorMode::SingleLine { .. }) {
6813 cx.propagate();
6814 return;
6815 }
6816
6817 let Some(row_count) = self.visible_row_count() else {
6818 return;
6819 };
6820
6821 let autoscroll = if action.center_cursor {
6822 Autoscroll::center()
6823 } else {
6824 Autoscroll::fit()
6825 };
6826
6827 let text_layout_details = &self.text_layout_details(cx);
6828
6829 self.change_selections(Some(autoscroll), cx, |s| {
6830 let line_mode = s.line_mode;
6831 s.move_with(|map, selection| {
6832 if !selection.is_empty() && !line_mode {
6833 selection.goal = SelectionGoal::None;
6834 }
6835 let (cursor, goal) = movement::up_by_rows(
6836 map,
6837 selection.end,
6838 row_count,
6839 selection.goal,
6840 false,
6841 &text_layout_details,
6842 );
6843 selection.collapse_to(cursor, goal);
6844 });
6845 });
6846 }
6847
6848 pub fn select_up(&mut self, _: &SelectUp, cx: &mut ViewContext<Self>) {
6849 let text_layout_details = &self.text_layout_details(cx);
6850 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6851 s.move_heads_with(|map, head, goal| {
6852 movement::up(map, head, goal, false, &text_layout_details)
6853 })
6854 })
6855 }
6856
6857 pub fn move_down(&mut self, _: &MoveDown, cx: &mut ViewContext<Self>) {
6858 self.take_rename(true, cx);
6859
6860 if matches!(self.mode, EditorMode::SingleLine { .. }) {
6861 cx.propagate();
6862 return;
6863 }
6864
6865 let text_layout_details = &self.text_layout_details(cx);
6866 let selection_count = self.selections.count();
6867 let first_selection = self.selections.first_anchor();
6868
6869 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6870 let line_mode = s.line_mode;
6871 s.move_with(|map, selection| {
6872 if !selection.is_empty() && !line_mode {
6873 selection.goal = SelectionGoal::None;
6874 }
6875 let (cursor, goal) = movement::down(
6876 map,
6877 selection.end,
6878 selection.goal,
6879 false,
6880 &text_layout_details,
6881 );
6882 selection.collapse_to(cursor, goal);
6883 });
6884 });
6885
6886 if selection_count == 1 && first_selection.range() == self.selections.first_anchor().range()
6887 {
6888 cx.propagate();
6889 }
6890 }
6891
6892 pub fn select_page_down(&mut self, _: &SelectPageDown, cx: &mut ViewContext<Self>) {
6893 let Some(row_count) = self.visible_row_count() else {
6894 return;
6895 };
6896
6897 let text_layout_details = &self.text_layout_details(cx);
6898
6899 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6900 s.move_heads_with(|map, head, goal| {
6901 movement::down_by_rows(map, head, row_count, goal, false, &text_layout_details)
6902 })
6903 })
6904 }
6905
6906 pub fn move_page_down(&mut self, action: &MovePageDown, cx: &mut ViewContext<Self>) {
6907 if self.take_rename(true, cx).is_some() {
6908 return;
6909 }
6910
6911 if self
6912 .context_menu
6913 .write()
6914 .as_mut()
6915 .map(|menu| menu.select_last(self.project.as_ref(), cx))
6916 .unwrap_or(false)
6917 {
6918 return;
6919 }
6920
6921 if matches!(self.mode, EditorMode::SingleLine { .. }) {
6922 cx.propagate();
6923 return;
6924 }
6925
6926 let Some(row_count) = self.visible_row_count() else {
6927 return;
6928 };
6929
6930 let autoscroll = if action.center_cursor {
6931 Autoscroll::center()
6932 } else {
6933 Autoscroll::fit()
6934 };
6935
6936 let text_layout_details = &self.text_layout_details(cx);
6937 self.change_selections(Some(autoscroll), cx, |s| {
6938 let line_mode = s.line_mode;
6939 s.move_with(|map, selection| {
6940 if !selection.is_empty() && !line_mode {
6941 selection.goal = SelectionGoal::None;
6942 }
6943 let (cursor, goal) = movement::down_by_rows(
6944 map,
6945 selection.end,
6946 row_count,
6947 selection.goal,
6948 false,
6949 &text_layout_details,
6950 );
6951 selection.collapse_to(cursor, goal);
6952 });
6953 });
6954 }
6955
6956 pub fn select_down(&mut self, _: &SelectDown, cx: &mut ViewContext<Self>) {
6957 let text_layout_details = &self.text_layout_details(cx);
6958 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6959 s.move_heads_with(|map, head, goal| {
6960 movement::down(map, head, goal, false, &text_layout_details)
6961 })
6962 });
6963 }
6964
6965 pub fn context_menu_first(&mut self, _: &ContextMenuFirst, cx: &mut ViewContext<Self>) {
6966 if let Some(context_menu) = self.context_menu.write().as_mut() {
6967 context_menu.select_first(self.project.as_ref(), cx);
6968 }
6969 }
6970
6971 pub fn context_menu_prev(&mut self, _: &ContextMenuPrev, cx: &mut ViewContext<Self>) {
6972 if let Some(context_menu) = self.context_menu.write().as_mut() {
6973 context_menu.select_prev(self.project.as_ref(), cx);
6974 }
6975 }
6976
6977 pub fn context_menu_next(&mut self, _: &ContextMenuNext, cx: &mut ViewContext<Self>) {
6978 if let Some(context_menu) = self.context_menu.write().as_mut() {
6979 context_menu.select_next(self.project.as_ref(), cx);
6980 }
6981 }
6982
6983 pub fn context_menu_last(&mut self, _: &ContextMenuLast, cx: &mut ViewContext<Self>) {
6984 if let Some(context_menu) = self.context_menu.write().as_mut() {
6985 context_menu.select_last(self.project.as_ref(), cx);
6986 }
6987 }
6988
6989 pub fn move_to_previous_word_start(
6990 &mut self,
6991 _: &MoveToPreviousWordStart,
6992 cx: &mut ViewContext<Self>,
6993 ) {
6994 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6995 s.move_cursors_with(|map, head, _| {
6996 (
6997 movement::previous_word_start(map, head),
6998 SelectionGoal::None,
6999 )
7000 });
7001 })
7002 }
7003
7004 pub fn move_to_previous_subword_start(
7005 &mut self,
7006 _: &MoveToPreviousSubwordStart,
7007 cx: &mut ViewContext<Self>,
7008 ) {
7009 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7010 s.move_cursors_with(|map, head, _| {
7011 (
7012 movement::previous_subword_start(map, head),
7013 SelectionGoal::None,
7014 )
7015 });
7016 })
7017 }
7018
7019 pub fn select_to_previous_word_start(
7020 &mut self,
7021 _: &SelectToPreviousWordStart,
7022 cx: &mut ViewContext<Self>,
7023 ) {
7024 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7025 s.move_heads_with(|map, head, _| {
7026 (
7027 movement::previous_word_start(map, head),
7028 SelectionGoal::None,
7029 )
7030 });
7031 })
7032 }
7033
7034 pub fn select_to_previous_subword_start(
7035 &mut self,
7036 _: &SelectToPreviousSubwordStart,
7037 cx: &mut ViewContext<Self>,
7038 ) {
7039 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7040 s.move_heads_with(|map, head, _| {
7041 (
7042 movement::previous_subword_start(map, head),
7043 SelectionGoal::None,
7044 )
7045 });
7046 })
7047 }
7048
7049 pub fn delete_to_previous_word_start(
7050 &mut self,
7051 _: &DeleteToPreviousWordStart,
7052 cx: &mut ViewContext<Self>,
7053 ) {
7054 self.transact(cx, |this, cx| {
7055 this.select_autoclose_pair(cx);
7056 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
7057 let line_mode = s.line_mode;
7058 s.move_with(|map, selection| {
7059 if selection.is_empty() && !line_mode {
7060 let cursor = movement::previous_word_start(map, selection.head());
7061 selection.set_head(cursor, SelectionGoal::None);
7062 }
7063 });
7064 });
7065 this.insert("", cx);
7066 });
7067 }
7068
7069 pub fn delete_to_previous_subword_start(
7070 &mut self,
7071 _: &DeleteToPreviousSubwordStart,
7072 cx: &mut ViewContext<Self>,
7073 ) {
7074 self.transact(cx, |this, cx| {
7075 this.select_autoclose_pair(cx);
7076 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
7077 let line_mode = s.line_mode;
7078 s.move_with(|map, selection| {
7079 if selection.is_empty() && !line_mode {
7080 let cursor = movement::previous_subword_start(map, selection.head());
7081 selection.set_head(cursor, SelectionGoal::None);
7082 }
7083 });
7084 });
7085 this.insert("", cx);
7086 });
7087 }
7088
7089 pub fn move_to_next_word_end(&mut self, _: &MoveToNextWordEnd, cx: &mut ViewContext<Self>) {
7090 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7091 s.move_cursors_with(|map, head, _| {
7092 (movement::next_word_end(map, head), SelectionGoal::None)
7093 });
7094 })
7095 }
7096
7097 pub fn move_to_next_subword_end(
7098 &mut self,
7099 _: &MoveToNextSubwordEnd,
7100 cx: &mut ViewContext<Self>,
7101 ) {
7102 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7103 s.move_cursors_with(|map, head, _| {
7104 (movement::next_subword_end(map, head), SelectionGoal::None)
7105 });
7106 })
7107 }
7108
7109 pub fn select_to_next_word_end(&mut self, _: &SelectToNextWordEnd, cx: &mut ViewContext<Self>) {
7110 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7111 s.move_heads_with(|map, head, _| {
7112 (movement::next_word_end(map, head), SelectionGoal::None)
7113 });
7114 })
7115 }
7116
7117 pub fn select_to_next_subword_end(
7118 &mut self,
7119 _: &SelectToNextSubwordEnd,
7120 cx: &mut ViewContext<Self>,
7121 ) {
7122 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7123 s.move_heads_with(|map, head, _| {
7124 (movement::next_subword_end(map, head), SelectionGoal::None)
7125 });
7126 })
7127 }
7128
7129 pub fn delete_to_next_word_end(&mut self, _: &DeleteToNextWordEnd, cx: &mut ViewContext<Self>) {
7130 self.transact(cx, |this, cx| {
7131 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
7132 let line_mode = s.line_mode;
7133 s.move_with(|map, selection| {
7134 if selection.is_empty() && !line_mode {
7135 let cursor = movement::next_word_end(map, selection.head());
7136 selection.set_head(cursor, SelectionGoal::None);
7137 }
7138 });
7139 });
7140 this.insert("", cx);
7141 });
7142 }
7143
7144 pub fn delete_to_next_subword_end(
7145 &mut self,
7146 _: &DeleteToNextSubwordEnd,
7147 cx: &mut ViewContext<Self>,
7148 ) {
7149 self.transact(cx, |this, cx| {
7150 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
7151 s.move_with(|map, selection| {
7152 if selection.is_empty() {
7153 let cursor = movement::next_subword_end(map, selection.head());
7154 selection.set_head(cursor, SelectionGoal::None);
7155 }
7156 });
7157 });
7158 this.insert("", cx);
7159 });
7160 }
7161
7162 pub fn move_to_beginning_of_line(
7163 &mut self,
7164 action: &MoveToBeginningOfLine,
7165 cx: &mut ViewContext<Self>,
7166 ) {
7167 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7168 s.move_cursors_with(|map, head, _| {
7169 (
7170 movement::indented_line_beginning(map, head, action.stop_at_soft_wraps),
7171 SelectionGoal::None,
7172 )
7173 });
7174 })
7175 }
7176
7177 pub fn select_to_beginning_of_line(
7178 &mut self,
7179 action: &SelectToBeginningOfLine,
7180 cx: &mut ViewContext<Self>,
7181 ) {
7182 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7183 s.move_heads_with(|map, head, _| {
7184 (
7185 movement::indented_line_beginning(map, head, action.stop_at_soft_wraps),
7186 SelectionGoal::None,
7187 )
7188 });
7189 });
7190 }
7191
7192 pub fn delete_to_beginning_of_line(
7193 &mut self,
7194 _: &DeleteToBeginningOfLine,
7195 cx: &mut ViewContext<Self>,
7196 ) {
7197 self.transact(cx, |this, cx| {
7198 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
7199 s.move_with(|_, selection| {
7200 selection.reversed = true;
7201 });
7202 });
7203
7204 this.select_to_beginning_of_line(
7205 &SelectToBeginningOfLine {
7206 stop_at_soft_wraps: false,
7207 },
7208 cx,
7209 );
7210 this.backspace(&Backspace, cx);
7211 });
7212 }
7213
7214 pub fn move_to_end_of_line(&mut self, action: &MoveToEndOfLine, cx: &mut ViewContext<Self>) {
7215 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7216 s.move_cursors_with(|map, head, _| {
7217 (
7218 movement::line_end(map, head, action.stop_at_soft_wraps),
7219 SelectionGoal::None,
7220 )
7221 });
7222 })
7223 }
7224
7225 pub fn select_to_end_of_line(
7226 &mut self,
7227 action: &SelectToEndOfLine,
7228 cx: &mut ViewContext<Self>,
7229 ) {
7230 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7231 s.move_heads_with(|map, head, _| {
7232 (
7233 movement::line_end(map, head, action.stop_at_soft_wraps),
7234 SelectionGoal::None,
7235 )
7236 });
7237 })
7238 }
7239
7240 pub fn delete_to_end_of_line(&mut self, _: &DeleteToEndOfLine, cx: &mut ViewContext<Self>) {
7241 self.transact(cx, |this, cx| {
7242 this.select_to_end_of_line(
7243 &SelectToEndOfLine {
7244 stop_at_soft_wraps: false,
7245 },
7246 cx,
7247 );
7248 this.delete(&Delete, cx);
7249 });
7250 }
7251
7252 pub fn cut_to_end_of_line(&mut self, _: &CutToEndOfLine, cx: &mut ViewContext<Self>) {
7253 self.transact(cx, |this, cx| {
7254 this.select_to_end_of_line(
7255 &SelectToEndOfLine {
7256 stop_at_soft_wraps: false,
7257 },
7258 cx,
7259 );
7260 this.cut(&Cut, cx);
7261 });
7262 }
7263
7264 pub fn move_to_start_of_paragraph(
7265 &mut self,
7266 _: &MoveToStartOfParagraph,
7267 cx: &mut ViewContext<Self>,
7268 ) {
7269 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7270 cx.propagate();
7271 return;
7272 }
7273
7274 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7275 s.move_with(|map, selection| {
7276 selection.collapse_to(
7277 movement::start_of_paragraph(map, selection.head(), 1),
7278 SelectionGoal::None,
7279 )
7280 });
7281 })
7282 }
7283
7284 pub fn move_to_end_of_paragraph(
7285 &mut self,
7286 _: &MoveToEndOfParagraph,
7287 cx: &mut ViewContext<Self>,
7288 ) {
7289 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7290 cx.propagate();
7291 return;
7292 }
7293
7294 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7295 s.move_with(|map, selection| {
7296 selection.collapse_to(
7297 movement::end_of_paragraph(map, selection.head(), 1),
7298 SelectionGoal::None,
7299 )
7300 });
7301 })
7302 }
7303
7304 pub fn select_to_start_of_paragraph(
7305 &mut self,
7306 _: &SelectToStartOfParagraph,
7307 cx: &mut ViewContext<Self>,
7308 ) {
7309 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7310 cx.propagate();
7311 return;
7312 }
7313
7314 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7315 s.move_heads_with(|map, head, _| {
7316 (
7317 movement::start_of_paragraph(map, head, 1),
7318 SelectionGoal::None,
7319 )
7320 });
7321 })
7322 }
7323
7324 pub fn select_to_end_of_paragraph(
7325 &mut self,
7326 _: &SelectToEndOfParagraph,
7327 cx: &mut ViewContext<Self>,
7328 ) {
7329 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7330 cx.propagate();
7331 return;
7332 }
7333
7334 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7335 s.move_heads_with(|map, head, _| {
7336 (
7337 movement::end_of_paragraph(map, head, 1),
7338 SelectionGoal::None,
7339 )
7340 });
7341 })
7342 }
7343
7344 pub fn move_to_beginning(&mut self, _: &MoveToBeginning, cx: &mut ViewContext<Self>) {
7345 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7346 cx.propagate();
7347 return;
7348 }
7349
7350 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7351 s.select_ranges(vec![0..0]);
7352 });
7353 }
7354
7355 pub fn select_to_beginning(&mut self, _: &SelectToBeginning, cx: &mut ViewContext<Self>) {
7356 let mut selection = self.selections.last::<Point>(cx);
7357 selection.set_head(Point::zero(), SelectionGoal::None);
7358
7359 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7360 s.select(vec![selection]);
7361 });
7362 }
7363
7364 pub fn move_to_end(&mut self, _: &MoveToEnd, cx: &mut ViewContext<Self>) {
7365 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7366 cx.propagate();
7367 return;
7368 }
7369
7370 let cursor = self.buffer.read(cx).read(cx).len();
7371 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7372 s.select_ranges(vec![cursor..cursor])
7373 });
7374 }
7375
7376 pub fn set_nav_history(&mut self, nav_history: Option<ItemNavHistory>) {
7377 self.nav_history = nav_history;
7378 }
7379
7380 pub fn nav_history(&self) -> Option<&ItemNavHistory> {
7381 self.nav_history.as_ref()
7382 }
7383
7384 fn push_to_nav_history(
7385 &mut self,
7386 cursor_anchor: Anchor,
7387 new_position: Option<Point>,
7388 cx: &mut ViewContext<Self>,
7389 ) {
7390 if let Some(nav_history) = self.nav_history.as_mut() {
7391 let buffer = self.buffer.read(cx).read(cx);
7392 let cursor_position = cursor_anchor.to_point(&buffer);
7393 let scroll_state = self.scroll_manager.anchor();
7394 let scroll_top_row = scroll_state.top_row(&buffer);
7395 drop(buffer);
7396
7397 if let Some(new_position) = new_position {
7398 let row_delta = (new_position.row as i64 - cursor_position.row as i64).abs();
7399 if row_delta < MIN_NAVIGATION_HISTORY_ROW_DELTA {
7400 return;
7401 }
7402 }
7403
7404 nav_history.push(
7405 Some(NavigationData {
7406 cursor_anchor,
7407 cursor_position,
7408 scroll_anchor: scroll_state,
7409 scroll_top_row,
7410 }),
7411 cx,
7412 );
7413 }
7414 }
7415
7416 pub fn select_to_end(&mut self, _: &SelectToEnd, cx: &mut ViewContext<Self>) {
7417 let buffer = self.buffer.read(cx).snapshot(cx);
7418 let mut selection = self.selections.first::<usize>(cx);
7419 selection.set_head(buffer.len(), SelectionGoal::None);
7420 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7421 s.select(vec![selection]);
7422 });
7423 }
7424
7425 pub fn select_all(&mut self, _: &SelectAll, cx: &mut ViewContext<Self>) {
7426 let end = self.buffer.read(cx).read(cx).len();
7427 self.change_selections(None, cx, |s| {
7428 s.select_ranges(vec![0..end]);
7429 });
7430 }
7431
7432 pub fn select_line(&mut self, _: &SelectLine, cx: &mut ViewContext<Self>) {
7433 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
7434 let mut selections = self.selections.all::<Point>(cx);
7435 let max_point = display_map.buffer_snapshot.max_point();
7436 for selection in &mut selections {
7437 let rows = selection.spanned_rows(true, &display_map);
7438 selection.start = Point::new(rows.start.0, 0);
7439 selection.end = cmp::min(max_point, Point::new(rows.end.0, 0));
7440 selection.reversed = false;
7441 }
7442 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7443 s.select(selections);
7444 });
7445 }
7446
7447 pub fn split_selection_into_lines(
7448 &mut self,
7449 _: &SplitSelectionIntoLines,
7450 cx: &mut ViewContext<Self>,
7451 ) {
7452 let mut to_unfold = Vec::new();
7453 let mut new_selection_ranges = Vec::new();
7454 {
7455 let selections = self.selections.all::<Point>(cx);
7456 let buffer = self.buffer.read(cx).read(cx);
7457 for selection in selections {
7458 for row in selection.start.row..selection.end.row {
7459 let cursor = Point::new(row, buffer.line_len(MultiBufferRow(row)));
7460 new_selection_ranges.push(cursor..cursor);
7461 }
7462 new_selection_ranges.push(selection.end..selection.end);
7463 to_unfold.push(selection.start..selection.end);
7464 }
7465 }
7466 self.unfold_ranges(to_unfold, true, true, cx);
7467 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7468 s.select_ranges(new_selection_ranges);
7469 });
7470 }
7471
7472 pub fn add_selection_above(&mut self, _: &AddSelectionAbove, cx: &mut ViewContext<Self>) {
7473 self.add_selection(true, cx);
7474 }
7475
7476 pub fn add_selection_below(&mut self, _: &AddSelectionBelow, cx: &mut ViewContext<Self>) {
7477 self.add_selection(false, cx);
7478 }
7479
7480 fn add_selection(&mut self, above: bool, cx: &mut ViewContext<Self>) {
7481 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
7482 let mut selections = self.selections.all::<Point>(cx);
7483 let text_layout_details = self.text_layout_details(cx);
7484 let mut state = self.add_selections_state.take().unwrap_or_else(|| {
7485 let oldest_selection = selections.iter().min_by_key(|s| s.id).unwrap().clone();
7486 let range = oldest_selection.display_range(&display_map).sorted();
7487
7488 let start_x = display_map.x_for_display_point(range.start, &text_layout_details);
7489 let end_x = display_map.x_for_display_point(range.end, &text_layout_details);
7490 let positions = start_x.min(end_x)..start_x.max(end_x);
7491
7492 selections.clear();
7493 let mut stack = Vec::new();
7494 for row in range.start.row().0..=range.end.row().0 {
7495 if let Some(selection) = self.selections.build_columnar_selection(
7496 &display_map,
7497 DisplayRow(row),
7498 &positions,
7499 oldest_selection.reversed,
7500 &text_layout_details,
7501 ) {
7502 stack.push(selection.id);
7503 selections.push(selection);
7504 }
7505 }
7506
7507 if above {
7508 stack.reverse();
7509 }
7510
7511 AddSelectionsState { above, stack }
7512 });
7513
7514 let last_added_selection = *state.stack.last().unwrap();
7515 let mut new_selections = Vec::new();
7516 if above == state.above {
7517 let end_row = if above {
7518 DisplayRow(0)
7519 } else {
7520 display_map.max_point().row()
7521 };
7522
7523 'outer: for selection in selections {
7524 if selection.id == last_added_selection {
7525 let range = selection.display_range(&display_map).sorted();
7526 debug_assert_eq!(range.start.row(), range.end.row());
7527 let mut row = range.start.row();
7528 let positions =
7529 if let SelectionGoal::HorizontalRange { start, end } = selection.goal {
7530 px(start)..px(end)
7531 } else {
7532 let start_x =
7533 display_map.x_for_display_point(range.start, &text_layout_details);
7534 let end_x =
7535 display_map.x_for_display_point(range.end, &text_layout_details);
7536 start_x.min(end_x)..start_x.max(end_x)
7537 };
7538
7539 while row != end_row {
7540 if above {
7541 row.0 -= 1;
7542 } else {
7543 row.0 += 1;
7544 }
7545
7546 if let Some(new_selection) = self.selections.build_columnar_selection(
7547 &display_map,
7548 row,
7549 &positions,
7550 selection.reversed,
7551 &text_layout_details,
7552 ) {
7553 state.stack.push(new_selection.id);
7554 if above {
7555 new_selections.push(new_selection);
7556 new_selections.push(selection);
7557 } else {
7558 new_selections.push(selection);
7559 new_selections.push(new_selection);
7560 }
7561
7562 continue 'outer;
7563 }
7564 }
7565 }
7566
7567 new_selections.push(selection);
7568 }
7569 } else {
7570 new_selections = selections;
7571 new_selections.retain(|s| s.id != last_added_selection);
7572 state.stack.pop();
7573 }
7574
7575 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7576 s.select(new_selections);
7577 });
7578 if state.stack.len() > 1 {
7579 self.add_selections_state = Some(state);
7580 }
7581 }
7582
7583 pub fn select_next_match_internal(
7584 &mut self,
7585 display_map: &DisplaySnapshot,
7586 replace_newest: bool,
7587 autoscroll: Option<Autoscroll>,
7588 cx: &mut ViewContext<Self>,
7589 ) -> Result<()> {
7590 fn select_next_match_ranges(
7591 this: &mut Editor,
7592 range: Range<usize>,
7593 replace_newest: bool,
7594 auto_scroll: Option<Autoscroll>,
7595 cx: &mut ViewContext<Editor>,
7596 ) {
7597 this.unfold_ranges([range.clone()], false, true, cx);
7598 this.change_selections(auto_scroll, cx, |s| {
7599 if replace_newest {
7600 s.delete(s.newest_anchor().id);
7601 }
7602 s.insert_range(range.clone());
7603 });
7604 }
7605
7606 let buffer = &display_map.buffer_snapshot;
7607 let mut selections = self.selections.all::<usize>(cx);
7608 if let Some(mut select_next_state) = self.select_next_state.take() {
7609 let query = &select_next_state.query;
7610 if !select_next_state.done {
7611 let first_selection = selections.iter().min_by_key(|s| s.id).unwrap();
7612 let last_selection = selections.iter().max_by_key(|s| s.id).unwrap();
7613 let mut next_selected_range = None;
7614
7615 let bytes_after_last_selection =
7616 buffer.bytes_in_range(last_selection.end..buffer.len());
7617 let bytes_before_first_selection = buffer.bytes_in_range(0..first_selection.start);
7618 let query_matches = query
7619 .stream_find_iter(bytes_after_last_selection)
7620 .map(|result| (last_selection.end, result))
7621 .chain(
7622 query
7623 .stream_find_iter(bytes_before_first_selection)
7624 .map(|result| (0, result)),
7625 );
7626
7627 for (start_offset, query_match) in query_matches {
7628 let query_match = query_match.unwrap(); // can only fail due to I/O
7629 let offset_range =
7630 start_offset + query_match.start()..start_offset + query_match.end();
7631 let display_range = offset_range.start.to_display_point(&display_map)
7632 ..offset_range.end.to_display_point(&display_map);
7633
7634 if !select_next_state.wordwise
7635 || (!movement::is_inside_word(&display_map, display_range.start)
7636 && !movement::is_inside_word(&display_map, display_range.end))
7637 {
7638 // TODO: This is n^2, because we might check all the selections
7639 if !selections
7640 .iter()
7641 .any(|selection| selection.range().overlaps(&offset_range))
7642 {
7643 next_selected_range = Some(offset_range);
7644 break;
7645 }
7646 }
7647 }
7648
7649 if let Some(next_selected_range) = next_selected_range {
7650 select_next_match_ranges(
7651 self,
7652 next_selected_range,
7653 replace_newest,
7654 autoscroll,
7655 cx,
7656 );
7657 } else {
7658 select_next_state.done = true;
7659 }
7660 }
7661
7662 self.select_next_state = Some(select_next_state);
7663 } else {
7664 let mut only_carets = true;
7665 let mut same_text_selected = true;
7666 let mut selected_text = None;
7667
7668 let mut selections_iter = selections.iter().peekable();
7669 while let Some(selection) = selections_iter.next() {
7670 if selection.start != selection.end {
7671 only_carets = false;
7672 }
7673
7674 if same_text_selected {
7675 if selected_text.is_none() {
7676 selected_text =
7677 Some(buffer.text_for_range(selection.range()).collect::<String>());
7678 }
7679
7680 if let Some(next_selection) = selections_iter.peek() {
7681 if next_selection.range().len() == selection.range().len() {
7682 let next_selected_text = buffer
7683 .text_for_range(next_selection.range())
7684 .collect::<String>();
7685 if Some(next_selected_text) != selected_text {
7686 same_text_selected = false;
7687 selected_text = None;
7688 }
7689 } else {
7690 same_text_selected = false;
7691 selected_text = None;
7692 }
7693 }
7694 }
7695 }
7696
7697 if only_carets {
7698 for selection in &mut selections {
7699 let word_range = movement::surrounding_word(
7700 &display_map,
7701 selection.start.to_display_point(&display_map),
7702 );
7703 selection.start = word_range.start.to_offset(&display_map, Bias::Left);
7704 selection.end = word_range.end.to_offset(&display_map, Bias::Left);
7705 selection.goal = SelectionGoal::None;
7706 selection.reversed = false;
7707 select_next_match_ranges(
7708 self,
7709 selection.start..selection.end,
7710 replace_newest,
7711 autoscroll,
7712 cx,
7713 );
7714 }
7715
7716 if selections.len() == 1 {
7717 let selection = selections
7718 .last()
7719 .expect("ensured that there's only one selection");
7720 let query = buffer
7721 .text_for_range(selection.start..selection.end)
7722 .collect::<String>();
7723 let is_empty = query.is_empty();
7724 let select_state = SelectNextState {
7725 query: AhoCorasick::new(&[query])?,
7726 wordwise: true,
7727 done: is_empty,
7728 };
7729 self.select_next_state = Some(select_state);
7730 } else {
7731 self.select_next_state = None;
7732 }
7733 } else if let Some(selected_text) = selected_text {
7734 self.select_next_state = Some(SelectNextState {
7735 query: AhoCorasick::new(&[selected_text])?,
7736 wordwise: false,
7737 done: false,
7738 });
7739 self.select_next_match_internal(display_map, replace_newest, autoscroll, cx)?;
7740 }
7741 }
7742 Ok(())
7743 }
7744
7745 pub fn select_all_matches(
7746 &mut self,
7747 _action: &SelectAllMatches,
7748 cx: &mut ViewContext<Self>,
7749 ) -> Result<()> {
7750 self.push_to_selection_history();
7751 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
7752
7753 self.select_next_match_internal(&display_map, false, None, cx)?;
7754 let Some(select_next_state) = self.select_next_state.as_mut() else {
7755 return Ok(());
7756 };
7757 if select_next_state.done {
7758 return Ok(());
7759 }
7760
7761 let mut new_selections = self.selections.all::<usize>(cx);
7762
7763 let buffer = &display_map.buffer_snapshot;
7764 let query_matches = select_next_state
7765 .query
7766 .stream_find_iter(buffer.bytes_in_range(0..buffer.len()));
7767
7768 for query_match in query_matches {
7769 let query_match = query_match.unwrap(); // can only fail due to I/O
7770 let offset_range = query_match.start()..query_match.end();
7771 let display_range = offset_range.start.to_display_point(&display_map)
7772 ..offset_range.end.to_display_point(&display_map);
7773
7774 if !select_next_state.wordwise
7775 || (!movement::is_inside_word(&display_map, display_range.start)
7776 && !movement::is_inside_word(&display_map, display_range.end))
7777 {
7778 self.selections.change_with(cx, |selections| {
7779 new_selections.push(Selection {
7780 id: selections.new_selection_id(),
7781 start: offset_range.start,
7782 end: offset_range.end,
7783 reversed: false,
7784 goal: SelectionGoal::None,
7785 });
7786 });
7787 }
7788 }
7789
7790 new_selections.sort_by_key(|selection| selection.start);
7791 let mut ix = 0;
7792 while ix + 1 < new_selections.len() {
7793 let current_selection = &new_selections[ix];
7794 let next_selection = &new_selections[ix + 1];
7795 if current_selection.range().overlaps(&next_selection.range()) {
7796 if current_selection.id < next_selection.id {
7797 new_selections.remove(ix + 1);
7798 } else {
7799 new_selections.remove(ix);
7800 }
7801 } else {
7802 ix += 1;
7803 }
7804 }
7805
7806 select_next_state.done = true;
7807 self.unfold_ranges(
7808 new_selections.iter().map(|selection| selection.range()),
7809 false,
7810 false,
7811 cx,
7812 );
7813 self.change_selections(Some(Autoscroll::fit()), cx, |selections| {
7814 selections.select(new_selections)
7815 });
7816
7817 Ok(())
7818 }
7819
7820 pub fn select_next(&mut self, action: &SelectNext, cx: &mut ViewContext<Self>) -> Result<()> {
7821 self.push_to_selection_history();
7822 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
7823 self.select_next_match_internal(
7824 &display_map,
7825 action.replace_newest,
7826 Some(Autoscroll::newest()),
7827 cx,
7828 )?;
7829 Ok(())
7830 }
7831
7832 pub fn select_previous(
7833 &mut self,
7834 action: &SelectPrevious,
7835 cx: &mut ViewContext<Self>,
7836 ) -> Result<()> {
7837 self.push_to_selection_history();
7838 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
7839 let buffer = &display_map.buffer_snapshot;
7840 let mut selections = self.selections.all::<usize>(cx);
7841 if let Some(mut select_prev_state) = self.select_prev_state.take() {
7842 let query = &select_prev_state.query;
7843 if !select_prev_state.done {
7844 let first_selection = selections.iter().min_by_key(|s| s.id).unwrap();
7845 let last_selection = selections.iter().max_by_key(|s| s.id).unwrap();
7846 let mut next_selected_range = None;
7847 // When we're iterating matches backwards, the oldest match will actually be the furthest one in the buffer.
7848 let bytes_before_last_selection =
7849 buffer.reversed_bytes_in_range(0..last_selection.start);
7850 let bytes_after_first_selection =
7851 buffer.reversed_bytes_in_range(first_selection.end..buffer.len());
7852 let query_matches = query
7853 .stream_find_iter(bytes_before_last_selection)
7854 .map(|result| (last_selection.start, result))
7855 .chain(
7856 query
7857 .stream_find_iter(bytes_after_first_selection)
7858 .map(|result| (buffer.len(), result)),
7859 );
7860 for (end_offset, query_match) in query_matches {
7861 let query_match = query_match.unwrap(); // can only fail due to I/O
7862 let offset_range =
7863 end_offset - query_match.end()..end_offset - query_match.start();
7864 let display_range = offset_range.start.to_display_point(&display_map)
7865 ..offset_range.end.to_display_point(&display_map);
7866
7867 if !select_prev_state.wordwise
7868 || (!movement::is_inside_word(&display_map, display_range.start)
7869 && !movement::is_inside_word(&display_map, display_range.end))
7870 {
7871 next_selected_range = Some(offset_range);
7872 break;
7873 }
7874 }
7875
7876 if let Some(next_selected_range) = next_selected_range {
7877 self.unfold_ranges([next_selected_range.clone()], false, true, cx);
7878 self.change_selections(Some(Autoscroll::newest()), cx, |s| {
7879 if action.replace_newest {
7880 s.delete(s.newest_anchor().id);
7881 }
7882 s.insert_range(next_selected_range);
7883 });
7884 } else {
7885 select_prev_state.done = true;
7886 }
7887 }
7888
7889 self.select_prev_state = Some(select_prev_state);
7890 } else {
7891 let mut only_carets = true;
7892 let mut same_text_selected = true;
7893 let mut selected_text = None;
7894
7895 let mut selections_iter = selections.iter().peekable();
7896 while let Some(selection) = selections_iter.next() {
7897 if selection.start != selection.end {
7898 only_carets = false;
7899 }
7900
7901 if same_text_selected {
7902 if selected_text.is_none() {
7903 selected_text =
7904 Some(buffer.text_for_range(selection.range()).collect::<String>());
7905 }
7906
7907 if let Some(next_selection) = selections_iter.peek() {
7908 if next_selection.range().len() == selection.range().len() {
7909 let next_selected_text = buffer
7910 .text_for_range(next_selection.range())
7911 .collect::<String>();
7912 if Some(next_selected_text) != selected_text {
7913 same_text_selected = false;
7914 selected_text = None;
7915 }
7916 } else {
7917 same_text_selected = false;
7918 selected_text = None;
7919 }
7920 }
7921 }
7922 }
7923
7924 if only_carets {
7925 for selection in &mut selections {
7926 let word_range = movement::surrounding_word(
7927 &display_map,
7928 selection.start.to_display_point(&display_map),
7929 );
7930 selection.start = word_range.start.to_offset(&display_map, Bias::Left);
7931 selection.end = word_range.end.to_offset(&display_map, Bias::Left);
7932 selection.goal = SelectionGoal::None;
7933 selection.reversed = false;
7934 }
7935 if selections.len() == 1 {
7936 let selection = selections
7937 .last()
7938 .expect("ensured that there's only one selection");
7939 let query = buffer
7940 .text_for_range(selection.start..selection.end)
7941 .collect::<String>();
7942 let is_empty = query.is_empty();
7943 let select_state = SelectNextState {
7944 query: AhoCorasick::new(&[query.chars().rev().collect::<String>()])?,
7945 wordwise: true,
7946 done: is_empty,
7947 };
7948 self.select_prev_state = Some(select_state);
7949 } else {
7950 self.select_prev_state = None;
7951 }
7952
7953 self.unfold_ranges(
7954 selections.iter().map(|s| s.range()).collect::<Vec<_>>(),
7955 false,
7956 true,
7957 cx,
7958 );
7959 self.change_selections(Some(Autoscroll::newest()), cx, |s| {
7960 s.select(selections);
7961 });
7962 } else if let Some(selected_text) = selected_text {
7963 self.select_prev_state = Some(SelectNextState {
7964 query: AhoCorasick::new(&[selected_text.chars().rev().collect::<String>()])?,
7965 wordwise: false,
7966 done: false,
7967 });
7968 self.select_previous(action, cx)?;
7969 }
7970 }
7971 Ok(())
7972 }
7973
7974 pub fn toggle_comments(&mut self, action: &ToggleComments, cx: &mut ViewContext<Self>) {
7975 let text_layout_details = &self.text_layout_details(cx);
7976 self.transact(cx, |this, cx| {
7977 let mut selections = this.selections.all::<MultiBufferPoint>(cx);
7978 let mut edits = Vec::new();
7979 let mut selection_edit_ranges = Vec::new();
7980 let mut last_toggled_row = None;
7981 let snapshot = this.buffer.read(cx).read(cx);
7982 let empty_str: Arc<str> = "".into();
7983 let mut suffixes_inserted = Vec::new();
7984
7985 fn comment_prefix_range(
7986 snapshot: &MultiBufferSnapshot,
7987 row: MultiBufferRow,
7988 comment_prefix: &str,
7989 comment_prefix_whitespace: &str,
7990 ) -> Range<Point> {
7991 let start = Point::new(row.0, snapshot.indent_size_for_line(row).len);
7992
7993 let mut line_bytes = snapshot
7994 .bytes_in_range(start..snapshot.max_point())
7995 .flatten()
7996 .copied();
7997
7998 // If this line currently begins with the line comment prefix, then record
7999 // the range containing the prefix.
8000 if line_bytes
8001 .by_ref()
8002 .take(comment_prefix.len())
8003 .eq(comment_prefix.bytes())
8004 {
8005 // Include any whitespace that matches the comment prefix.
8006 let matching_whitespace_len = line_bytes
8007 .zip(comment_prefix_whitespace.bytes())
8008 .take_while(|(a, b)| a == b)
8009 .count() as u32;
8010 let end = Point::new(
8011 start.row,
8012 start.column + comment_prefix.len() as u32 + matching_whitespace_len,
8013 );
8014 start..end
8015 } else {
8016 start..start
8017 }
8018 }
8019
8020 fn comment_suffix_range(
8021 snapshot: &MultiBufferSnapshot,
8022 row: MultiBufferRow,
8023 comment_suffix: &str,
8024 comment_suffix_has_leading_space: bool,
8025 ) -> Range<Point> {
8026 let end = Point::new(row.0, snapshot.line_len(row));
8027 let suffix_start_column = end.column.saturating_sub(comment_suffix.len() as u32);
8028
8029 let mut line_end_bytes = snapshot
8030 .bytes_in_range(Point::new(end.row, suffix_start_column.saturating_sub(1))..end)
8031 .flatten()
8032 .copied();
8033
8034 let leading_space_len = if suffix_start_column > 0
8035 && line_end_bytes.next() == Some(b' ')
8036 && comment_suffix_has_leading_space
8037 {
8038 1
8039 } else {
8040 0
8041 };
8042
8043 // If this line currently begins with the line comment prefix, then record
8044 // the range containing the prefix.
8045 if line_end_bytes.by_ref().eq(comment_suffix.bytes()) {
8046 let start = Point::new(end.row, suffix_start_column - leading_space_len);
8047 start..end
8048 } else {
8049 end..end
8050 }
8051 }
8052
8053 // TODO: Handle selections that cross excerpts
8054 for selection in &mut selections {
8055 let start_column = snapshot
8056 .indent_size_for_line(MultiBufferRow(selection.start.row))
8057 .len;
8058 let language = if let Some(language) =
8059 snapshot.language_scope_at(Point::new(selection.start.row, start_column))
8060 {
8061 language
8062 } else {
8063 continue;
8064 };
8065
8066 selection_edit_ranges.clear();
8067
8068 // If multiple selections contain a given row, avoid processing that
8069 // row more than once.
8070 let mut start_row = MultiBufferRow(selection.start.row);
8071 if last_toggled_row == Some(start_row) {
8072 start_row = start_row.next_row();
8073 }
8074 let end_row =
8075 if selection.end.row > selection.start.row && selection.end.column == 0 {
8076 MultiBufferRow(selection.end.row - 1)
8077 } else {
8078 MultiBufferRow(selection.end.row)
8079 };
8080 last_toggled_row = Some(end_row);
8081
8082 if start_row > end_row {
8083 continue;
8084 }
8085
8086 // If the language has line comments, toggle those.
8087 let full_comment_prefixes = language.line_comment_prefixes();
8088 if !full_comment_prefixes.is_empty() {
8089 let first_prefix = full_comment_prefixes
8090 .first()
8091 .expect("prefixes is non-empty");
8092 let prefix_trimmed_lengths = full_comment_prefixes
8093 .iter()
8094 .map(|p| p.trim_end_matches(' ').len())
8095 .collect::<SmallVec<[usize; 4]>>();
8096
8097 let mut all_selection_lines_are_comments = true;
8098
8099 for row in start_row.0..=end_row.0 {
8100 let row = MultiBufferRow(row);
8101 if start_row < end_row && snapshot.is_line_blank(row) {
8102 continue;
8103 }
8104
8105 let prefix_range = full_comment_prefixes
8106 .iter()
8107 .zip(prefix_trimmed_lengths.iter().copied())
8108 .map(|(prefix, trimmed_prefix_len)| {
8109 comment_prefix_range(
8110 snapshot.deref(),
8111 row,
8112 &prefix[..trimmed_prefix_len],
8113 &prefix[trimmed_prefix_len..],
8114 )
8115 })
8116 .max_by_key(|range| range.end.column - range.start.column)
8117 .expect("prefixes is non-empty");
8118
8119 if prefix_range.is_empty() {
8120 all_selection_lines_are_comments = false;
8121 }
8122
8123 selection_edit_ranges.push(prefix_range);
8124 }
8125
8126 if all_selection_lines_are_comments {
8127 edits.extend(
8128 selection_edit_ranges
8129 .iter()
8130 .cloned()
8131 .map(|range| (range, empty_str.clone())),
8132 );
8133 } else {
8134 let min_column = selection_edit_ranges
8135 .iter()
8136 .map(|range| range.start.column)
8137 .min()
8138 .unwrap_or(0);
8139 edits.extend(selection_edit_ranges.iter().map(|range| {
8140 let position = Point::new(range.start.row, min_column);
8141 (position..position, first_prefix.clone())
8142 }));
8143 }
8144 } else if let Some((full_comment_prefix, comment_suffix)) =
8145 language.block_comment_delimiters()
8146 {
8147 let comment_prefix = full_comment_prefix.trim_end_matches(' ');
8148 let comment_prefix_whitespace = &full_comment_prefix[comment_prefix.len()..];
8149 let prefix_range = comment_prefix_range(
8150 snapshot.deref(),
8151 start_row,
8152 comment_prefix,
8153 comment_prefix_whitespace,
8154 );
8155 let suffix_range = comment_suffix_range(
8156 snapshot.deref(),
8157 end_row,
8158 comment_suffix.trim_start_matches(' '),
8159 comment_suffix.starts_with(' '),
8160 );
8161
8162 if prefix_range.is_empty() || suffix_range.is_empty() {
8163 edits.push((
8164 prefix_range.start..prefix_range.start,
8165 full_comment_prefix.clone(),
8166 ));
8167 edits.push((suffix_range.end..suffix_range.end, comment_suffix.clone()));
8168 suffixes_inserted.push((end_row, comment_suffix.len()));
8169 } else {
8170 edits.push((prefix_range, empty_str.clone()));
8171 edits.push((suffix_range, empty_str.clone()));
8172 }
8173 } else {
8174 continue;
8175 }
8176 }
8177
8178 drop(snapshot);
8179 this.buffer.update(cx, |buffer, cx| {
8180 buffer.edit(edits, None, cx);
8181 });
8182
8183 // Adjust selections so that they end before any comment suffixes that
8184 // were inserted.
8185 let mut suffixes_inserted = suffixes_inserted.into_iter().peekable();
8186 let mut selections = this.selections.all::<Point>(cx);
8187 let snapshot = this.buffer.read(cx).read(cx);
8188 for selection in &mut selections {
8189 while let Some((row, suffix_len)) = suffixes_inserted.peek().copied() {
8190 match row.cmp(&MultiBufferRow(selection.end.row)) {
8191 Ordering::Less => {
8192 suffixes_inserted.next();
8193 continue;
8194 }
8195 Ordering::Greater => break,
8196 Ordering::Equal => {
8197 if selection.end.column == snapshot.line_len(row) {
8198 if selection.is_empty() {
8199 selection.start.column -= suffix_len as u32;
8200 }
8201 selection.end.column -= suffix_len as u32;
8202 }
8203 break;
8204 }
8205 }
8206 }
8207 }
8208
8209 drop(snapshot);
8210 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
8211
8212 let selections = this.selections.all::<Point>(cx);
8213 let selections_on_single_row = selections.windows(2).all(|selections| {
8214 selections[0].start.row == selections[1].start.row
8215 && selections[0].end.row == selections[1].end.row
8216 && selections[0].start.row == selections[0].end.row
8217 });
8218 let selections_selecting = selections
8219 .iter()
8220 .any(|selection| selection.start != selection.end);
8221 let advance_downwards = action.advance_downwards
8222 && selections_on_single_row
8223 && !selections_selecting
8224 && !matches!(this.mode, EditorMode::SingleLine { .. });
8225
8226 if advance_downwards {
8227 let snapshot = this.buffer.read(cx).snapshot(cx);
8228
8229 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
8230 s.move_cursors_with(|display_snapshot, display_point, _| {
8231 let mut point = display_point.to_point(display_snapshot);
8232 point.row += 1;
8233 point = snapshot.clip_point(point, Bias::Left);
8234 let display_point = point.to_display_point(display_snapshot);
8235 let goal = SelectionGoal::HorizontalPosition(
8236 display_snapshot
8237 .x_for_display_point(display_point, &text_layout_details)
8238 .into(),
8239 );
8240 (display_point, goal)
8241 })
8242 });
8243 }
8244 });
8245 }
8246
8247 pub fn select_enclosing_symbol(
8248 &mut self,
8249 _: &SelectEnclosingSymbol,
8250 cx: &mut ViewContext<Self>,
8251 ) {
8252 let buffer = self.buffer.read(cx).snapshot(cx);
8253 let old_selections = self.selections.all::<usize>(cx).into_boxed_slice();
8254
8255 fn update_selection(
8256 selection: &Selection<usize>,
8257 buffer_snap: &MultiBufferSnapshot,
8258 ) -> Option<Selection<usize>> {
8259 let cursor = selection.head();
8260 let (_buffer_id, symbols) = buffer_snap.symbols_containing(cursor, None)?;
8261 for symbol in symbols.iter().rev() {
8262 let start = symbol.range.start.to_offset(&buffer_snap);
8263 let end = symbol.range.end.to_offset(&buffer_snap);
8264 let new_range = start..end;
8265 if start < selection.start || end > selection.end {
8266 return Some(Selection {
8267 id: selection.id,
8268 start: new_range.start,
8269 end: new_range.end,
8270 goal: SelectionGoal::None,
8271 reversed: selection.reversed,
8272 });
8273 }
8274 }
8275 None
8276 }
8277
8278 let mut selected_larger_symbol = false;
8279 let new_selections = old_selections
8280 .iter()
8281 .map(|selection| match update_selection(selection, &buffer) {
8282 Some(new_selection) => {
8283 if new_selection.range() != selection.range() {
8284 selected_larger_symbol = true;
8285 }
8286 new_selection
8287 }
8288 None => selection.clone(),
8289 })
8290 .collect::<Vec<_>>();
8291
8292 if selected_larger_symbol {
8293 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8294 s.select(new_selections);
8295 });
8296 }
8297 }
8298
8299 pub fn select_larger_syntax_node(
8300 &mut self,
8301 _: &SelectLargerSyntaxNode,
8302 cx: &mut ViewContext<Self>,
8303 ) {
8304 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
8305 let buffer = self.buffer.read(cx).snapshot(cx);
8306 let old_selections = self.selections.all::<usize>(cx).into_boxed_slice();
8307
8308 let mut stack = mem::take(&mut self.select_larger_syntax_node_stack);
8309 let mut selected_larger_node = false;
8310 let new_selections = old_selections
8311 .iter()
8312 .map(|selection| {
8313 let old_range = selection.start..selection.end;
8314 let mut new_range = old_range.clone();
8315 while let Some(containing_range) =
8316 buffer.range_for_syntax_ancestor(new_range.clone())
8317 {
8318 new_range = containing_range;
8319 if !display_map.intersects_fold(new_range.start)
8320 && !display_map.intersects_fold(new_range.end)
8321 {
8322 break;
8323 }
8324 }
8325
8326 selected_larger_node |= new_range != old_range;
8327 Selection {
8328 id: selection.id,
8329 start: new_range.start,
8330 end: new_range.end,
8331 goal: SelectionGoal::None,
8332 reversed: selection.reversed,
8333 }
8334 })
8335 .collect::<Vec<_>>();
8336
8337 if selected_larger_node {
8338 stack.push(old_selections);
8339 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8340 s.select(new_selections);
8341 });
8342 }
8343 self.select_larger_syntax_node_stack = stack;
8344 }
8345
8346 pub fn select_smaller_syntax_node(
8347 &mut self,
8348 _: &SelectSmallerSyntaxNode,
8349 cx: &mut ViewContext<Self>,
8350 ) {
8351 let mut stack = mem::take(&mut self.select_larger_syntax_node_stack);
8352 if let Some(selections) = stack.pop() {
8353 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8354 s.select(selections.to_vec());
8355 });
8356 }
8357 self.select_larger_syntax_node_stack = stack;
8358 }
8359
8360 fn refresh_runnables(&mut self, cx: &mut ViewContext<Self>) -> Task<()> {
8361 if !EditorSettings::get_global(cx).gutter.runnables {
8362 self.clear_tasks();
8363 return Task::ready(());
8364 }
8365 let project = self.project.clone();
8366 cx.spawn(|this, mut cx| async move {
8367 let Ok(display_snapshot) = this.update(&mut cx, |this, cx| {
8368 this.display_map.update(cx, |map, cx| map.snapshot(cx))
8369 }) else {
8370 return;
8371 };
8372
8373 let Some(project) = project else {
8374 return;
8375 };
8376
8377 let hide_runnables = project
8378 .update(&mut cx, |project, cx| {
8379 // Do not display any test indicators in non-dev server remote projects.
8380 project.is_remote() && project.ssh_connection_string(cx).is_none()
8381 })
8382 .unwrap_or(true);
8383 if hide_runnables {
8384 return;
8385 }
8386 let new_rows =
8387 cx.background_executor()
8388 .spawn({
8389 let snapshot = display_snapshot.clone();
8390 async move {
8391 Self::fetch_runnable_ranges(&snapshot, Anchor::min()..Anchor::max())
8392 }
8393 })
8394 .await;
8395 let rows = Self::runnable_rows(project, display_snapshot, new_rows, cx.clone());
8396
8397 this.update(&mut cx, |this, _| {
8398 this.clear_tasks();
8399 for (key, value) in rows {
8400 this.insert_tasks(key, value);
8401 }
8402 })
8403 .ok();
8404 })
8405 }
8406 fn fetch_runnable_ranges(
8407 snapshot: &DisplaySnapshot,
8408 range: Range<Anchor>,
8409 ) -> Vec<language::RunnableRange> {
8410 snapshot.buffer_snapshot.runnable_ranges(range).collect()
8411 }
8412
8413 fn runnable_rows(
8414 project: Model<Project>,
8415 snapshot: DisplaySnapshot,
8416 runnable_ranges: Vec<RunnableRange>,
8417 mut cx: AsyncWindowContext,
8418 ) -> Vec<((BufferId, u32), RunnableTasks)> {
8419 runnable_ranges
8420 .into_iter()
8421 .filter_map(|mut runnable| {
8422 let tasks = cx
8423 .update(|cx| Self::templates_with_tags(&project, &mut runnable.runnable, cx))
8424 .ok()?;
8425 if tasks.is_empty() {
8426 return None;
8427 }
8428
8429 let point = runnable.run_range.start.to_point(&snapshot.buffer_snapshot);
8430
8431 let row = snapshot
8432 .buffer_snapshot
8433 .buffer_line_for_row(MultiBufferRow(point.row))?
8434 .1
8435 .start
8436 .row;
8437
8438 let context_range =
8439 BufferOffset(runnable.full_range.start)..BufferOffset(runnable.full_range.end);
8440 Some((
8441 (runnable.buffer_id, row),
8442 RunnableTasks {
8443 templates: tasks,
8444 offset: MultiBufferOffset(runnable.run_range.start),
8445 context_range,
8446 column: point.column,
8447 extra_variables: runnable.extra_captures,
8448 },
8449 ))
8450 })
8451 .collect()
8452 }
8453
8454 fn templates_with_tags(
8455 project: &Model<Project>,
8456 runnable: &mut Runnable,
8457 cx: &WindowContext<'_>,
8458 ) -> Vec<(TaskSourceKind, TaskTemplate)> {
8459 let (inventory, worktree_id) = project.read_with(cx, |project, cx| {
8460 let worktree_id = project
8461 .buffer_for_id(runnable.buffer)
8462 .and_then(|buffer| buffer.read(cx).file())
8463 .map(|file| WorktreeId::from_usize(file.worktree_id()));
8464
8465 (project.task_inventory().clone(), worktree_id)
8466 });
8467
8468 let inventory = inventory.read(cx);
8469 let tags = mem::take(&mut runnable.tags);
8470 let mut tags: Vec<_> = tags
8471 .into_iter()
8472 .flat_map(|tag| {
8473 let tag = tag.0.clone();
8474 inventory
8475 .list_tasks(Some(runnable.language.clone()), worktree_id)
8476 .into_iter()
8477 .filter(move |(_, template)| {
8478 template.tags.iter().any(|source_tag| source_tag == &tag)
8479 })
8480 })
8481 .sorted_by_key(|(kind, _)| kind.to_owned())
8482 .collect();
8483 if let Some((leading_tag_source, _)) = tags.first() {
8484 // Strongest source wins; if we have worktree tag binding, prefer that to
8485 // global and language bindings;
8486 // if we have a global binding, prefer that to language binding.
8487 let first_mismatch = tags
8488 .iter()
8489 .position(|(tag_source, _)| tag_source != leading_tag_source);
8490 if let Some(index) = first_mismatch {
8491 tags.truncate(index);
8492 }
8493 }
8494
8495 tags
8496 }
8497
8498 pub fn move_to_enclosing_bracket(
8499 &mut self,
8500 _: &MoveToEnclosingBracket,
8501 cx: &mut ViewContext<Self>,
8502 ) {
8503 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8504 s.move_offsets_with(|snapshot, selection| {
8505 let Some(enclosing_bracket_ranges) =
8506 snapshot.enclosing_bracket_ranges(selection.start..selection.end)
8507 else {
8508 return;
8509 };
8510
8511 let mut best_length = usize::MAX;
8512 let mut best_inside = false;
8513 let mut best_in_bracket_range = false;
8514 let mut best_destination = None;
8515 for (open, close) in enclosing_bracket_ranges {
8516 let close = close.to_inclusive();
8517 let length = close.end() - open.start;
8518 let inside = selection.start >= open.end && selection.end <= *close.start();
8519 let in_bracket_range = open.to_inclusive().contains(&selection.head())
8520 || close.contains(&selection.head());
8521
8522 // If best is next to a bracket and current isn't, skip
8523 if !in_bracket_range && best_in_bracket_range {
8524 continue;
8525 }
8526
8527 // Prefer smaller lengths unless best is inside and current isn't
8528 if length > best_length && (best_inside || !inside) {
8529 continue;
8530 }
8531
8532 best_length = length;
8533 best_inside = inside;
8534 best_in_bracket_range = in_bracket_range;
8535 best_destination = Some(
8536 if close.contains(&selection.start) && close.contains(&selection.end) {
8537 if inside {
8538 open.end
8539 } else {
8540 open.start
8541 }
8542 } else {
8543 if inside {
8544 *close.start()
8545 } else {
8546 *close.end()
8547 }
8548 },
8549 );
8550 }
8551
8552 if let Some(destination) = best_destination {
8553 selection.collapse_to(destination, SelectionGoal::None);
8554 }
8555 })
8556 });
8557 }
8558
8559 pub fn undo_selection(&mut self, _: &UndoSelection, cx: &mut ViewContext<Self>) {
8560 self.end_selection(cx);
8561 self.selection_history.mode = SelectionHistoryMode::Undoing;
8562 if let Some(entry) = self.selection_history.undo_stack.pop_back() {
8563 self.change_selections(None, cx, |s| s.select_anchors(entry.selections.to_vec()));
8564 self.select_next_state = entry.select_next_state;
8565 self.select_prev_state = entry.select_prev_state;
8566 self.add_selections_state = entry.add_selections_state;
8567 self.request_autoscroll(Autoscroll::newest(), cx);
8568 }
8569 self.selection_history.mode = SelectionHistoryMode::Normal;
8570 }
8571
8572 pub fn redo_selection(&mut self, _: &RedoSelection, cx: &mut ViewContext<Self>) {
8573 self.end_selection(cx);
8574 self.selection_history.mode = SelectionHistoryMode::Redoing;
8575 if let Some(entry) = self.selection_history.redo_stack.pop_back() {
8576 self.change_selections(None, cx, |s| s.select_anchors(entry.selections.to_vec()));
8577 self.select_next_state = entry.select_next_state;
8578 self.select_prev_state = entry.select_prev_state;
8579 self.add_selections_state = entry.add_selections_state;
8580 self.request_autoscroll(Autoscroll::newest(), cx);
8581 }
8582 self.selection_history.mode = SelectionHistoryMode::Normal;
8583 }
8584
8585 pub fn expand_excerpts(&mut self, action: &ExpandExcerpts, cx: &mut ViewContext<Self>) {
8586 self.expand_excerpts_for_direction(action.lines, ExpandExcerptDirection::UpAndDown, cx)
8587 }
8588
8589 pub fn expand_excerpts_down(
8590 &mut self,
8591 action: &ExpandExcerptsDown,
8592 cx: &mut ViewContext<Self>,
8593 ) {
8594 self.expand_excerpts_for_direction(action.lines, ExpandExcerptDirection::Down, cx)
8595 }
8596
8597 pub fn expand_excerpts_up(&mut self, action: &ExpandExcerptsUp, cx: &mut ViewContext<Self>) {
8598 self.expand_excerpts_for_direction(action.lines, ExpandExcerptDirection::Up, cx)
8599 }
8600
8601 pub fn expand_excerpts_for_direction(
8602 &mut self,
8603 lines: u32,
8604 direction: ExpandExcerptDirection,
8605 cx: &mut ViewContext<Self>,
8606 ) {
8607 let selections = self.selections.disjoint_anchors();
8608
8609 let lines = if lines == 0 {
8610 EditorSettings::get_global(cx).expand_excerpt_lines
8611 } else {
8612 lines
8613 };
8614
8615 self.buffer.update(cx, |buffer, cx| {
8616 buffer.expand_excerpts(
8617 selections
8618 .into_iter()
8619 .map(|selection| selection.head().excerpt_id)
8620 .dedup(),
8621 lines,
8622 direction,
8623 cx,
8624 )
8625 })
8626 }
8627
8628 pub fn expand_excerpt(
8629 &mut self,
8630 excerpt: ExcerptId,
8631 direction: ExpandExcerptDirection,
8632 cx: &mut ViewContext<Self>,
8633 ) {
8634 let lines = EditorSettings::get_global(cx).expand_excerpt_lines;
8635 self.buffer.update(cx, |buffer, cx| {
8636 buffer.expand_excerpts([excerpt], lines, direction, cx)
8637 })
8638 }
8639
8640 fn go_to_diagnostic(&mut self, _: &GoToDiagnostic, cx: &mut ViewContext<Self>) {
8641 self.go_to_diagnostic_impl(Direction::Next, cx)
8642 }
8643
8644 fn go_to_prev_diagnostic(&mut self, _: &GoToPrevDiagnostic, cx: &mut ViewContext<Self>) {
8645 self.go_to_diagnostic_impl(Direction::Prev, cx)
8646 }
8647
8648 pub fn go_to_diagnostic_impl(&mut self, direction: Direction, cx: &mut ViewContext<Self>) {
8649 let buffer = self.buffer.read(cx).snapshot(cx);
8650 let selection = self.selections.newest::<usize>(cx);
8651
8652 // If there is an active Diagnostic Popover jump to its diagnostic instead.
8653 if direction == Direction::Next {
8654 if let Some(popover) = self.hover_state.diagnostic_popover.as_ref() {
8655 let (group_id, jump_to) = popover.activation_info();
8656 if self.activate_diagnostics(group_id, cx) {
8657 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8658 let mut new_selection = s.newest_anchor().clone();
8659 new_selection.collapse_to(jump_to, SelectionGoal::None);
8660 s.select_anchors(vec![new_selection.clone()]);
8661 });
8662 }
8663 return;
8664 }
8665 }
8666
8667 let mut active_primary_range = self.active_diagnostics.as_ref().map(|active_diagnostics| {
8668 active_diagnostics
8669 .primary_range
8670 .to_offset(&buffer)
8671 .to_inclusive()
8672 });
8673 let mut search_start = if let Some(active_primary_range) = active_primary_range.as_ref() {
8674 if active_primary_range.contains(&selection.head()) {
8675 *active_primary_range.start()
8676 } else {
8677 selection.head()
8678 }
8679 } else {
8680 selection.head()
8681 };
8682 let snapshot = self.snapshot(cx);
8683 loop {
8684 let diagnostics = if direction == Direction::Prev {
8685 buffer.diagnostics_in_range::<_, usize>(0..search_start, true)
8686 } else {
8687 buffer.diagnostics_in_range::<_, usize>(search_start..buffer.len(), false)
8688 }
8689 .filter(|diagnostic| !snapshot.intersects_fold(diagnostic.range.start));
8690 let group = diagnostics
8691 // relies on diagnostics_in_range to return diagnostics with the same starting range to
8692 // be sorted in a stable way
8693 // skip until we are at current active diagnostic, if it exists
8694 .skip_while(|entry| {
8695 (match direction {
8696 Direction::Prev => entry.range.start >= search_start,
8697 Direction::Next => entry.range.start <= search_start,
8698 }) && self
8699 .active_diagnostics
8700 .as_ref()
8701 .is_some_and(|a| a.group_id != entry.diagnostic.group_id)
8702 })
8703 .find_map(|entry| {
8704 if entry.diagnostic.is_primary
8705 && entry.diagnostic.severity <= DiagnosticSeverity::WARNING
8706 && !entry.range.is_empty()
8707 // if we match with the active diagnostic, skip it
8708 && Some(entry.diagnostic.group_id)
8709 != self.active_diagnostics.as_ref().map(|d| d.group_id)
8710 {
8711 Some((entry.range, entry.diagnostic.group_id))
8712 } else {
8713 None
8714 }
8715 });
8716
8717 if let Some((primary_range, group_id)) = group {
8718 if self.activate_diagnostics(group_id, cx) {
8719 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8720 s.select(vec![Selection {
8721 id: selection.id,
8722 start: primary_range.start,
8723 end: primary_range.start,
8724 reversed: false,
8725 goal: SelectionGoal::None,
8726 }]);
8727 });
8728 }
8729 break;
8730 } else {
8731 // Cycle around to the start of the buffer, potentially moving back to the start of
8732 // the currently active diagnostic.
8733 active_primary_range.take();
8734 if direction == Direction::Prev {
8735 if search_start == buffer.len() {
8736 break;
8737 } else {
8738 search_start = buffer.len();
8739 }
8740 } else if search_start == 0 {
8741 break;
8742 } else {
8743 search_start = 0;
8744 }
8745 }
8746 }
8747 }
8748
8749 fn go_to_hunk(&mut self, _: &GoToHunk, cx: &mut ViewContext<Self>) {
8750 let snapshot = self
8751 .display_map
8752 .update(cx, |display_map, cx| display_map.snapshot(cx));
8753 let selection = self.selections.newest::<Point>(cx);
8754
8755 if !self.seek_in_direction(
8756 &snapshot,
8757 selection.head(),
8758 false,
8759 snapshot.buffer_snapshot.git_diff_hunks_in_range(
8760 MultiBufferRow(selection.head().row + 1)..MultiBufferRow::MAX,
8761 ),
8762 cx,
8763 ) {
8764 let wrapped_point = Point::zero();
8765 self.seek_in_direction(
8766 &snapshot,
8767 wrapped_point,
8768 true,
8769 snapshot.buffer_snapshot.git_diff_hunks_in_range(
8770 MultiBufferRow(wrapped_point.row + 1)..MultiBufferRow::MAX,
8771 ),
8772 cx,
8773 );
8774 }
8775 }
8776
8777 fn go_to_prev_hunk(&mut self, _: &GoToPrevHunk, cx: &mut ViewContext<Self>) {
8778 let snapshot = self
8779 .display_map
8780 .update(cx, |display_map, cx| display_map.snapshot(cx));
8781 let selection = self.selections.newest::<Point>(cx);
8782
8783 if !self.seek_in_direction(
8784 &snapshot,
8785 selection.head(),
8786 false,
8787 snapshot.buffer_snapshot.git_diff_hunks_in_range_rev(
8788 MultiBufferRow(0)..MultiBufferRow(selection.head().row),
8789 ),
8790 cx,
8791 ) {
8792 let wrapped_point = snapshot.buffer_snapshot.max_point();
8793 self.seek_in_direction(
8794 &snapshot,
8795 wrapped_point,
8796 true,
8797 snapshot.buffer_snapshot.git_diff_hunks_in_range_rev(
8798 MultiBufferRow(0)..MultiBufferRow(wrapped_point.row),
8799 ),
8800 cx,
8801 );
8802 }
8803 }
8804
8805 fn seek_in_direction(
8806 &mut self,
8807 snapshot: &DisplaySnapshot,
8808 initial_point: Point,
8809 is_wrapped: bool,
8810 hunks: impl Iterator<Item = DiffHunk<MultiBufferRow>>,
8811 cx: &mut ViewContext<Editor>,
8812 ) -> bool {
8813 let display_point = initial_point.to_display_point(snapshot);
8814 let mut hunks = hunks
8815 .map(|hunk| diff_hunk_to_display(&hunk, &snapshot))
8816 .filter(|hunk| {
8817 if is_wrapped {
8818 true
8819 } else {
8820 !hunk.contains_display_row(display_point.row())
8821 }
8822 })
8823 .dedup();
8824
8825 if let Some(hunk) = hunks.next() {
8826 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8827 let row = hunk.start_display_row();
8828 let point = DisplayPoint::new(row, 0);
8829 s.select_display_ranges([point..point]);
8830 });
8831
8832 true
8833 } else {
8834 false
8835 }
8836 }
8837
8838 pub fn go_to_definition(
8839 &mut self,
8840 _: &GoToDefinition,
8841 cx: &mut ViewContext<Self>,
8842 ) -> Task<Result<bool>> {
8843 self.go_to_definition_of_kind(GotoDefinitionKind::Symbol, false, cx)
8844 }
8845
8846 pub fn go_to_implementation(
8847 &mut self,
8848 _: &GoToImplementation,
8849 cx: &mut ViewContext<Self>,
8850 ) -> Task<Result<bool>> {
8851 self.go_to_definition_of_kind(GotoDefinitionKind::Implementation, false, cx)
8852 }
8853
8854 pub fn go_to_implementation_split(
8855 &mut self,
8856 _: &GoToImplementationSplit,
8857 cx: &mut ViewContext<Self>,
8858 ) -> Task<Result<bool>> {
8859 self.go_to_definition_of_kind(GotoDefinitionKind::Implementation, true, cx)
8860 }
8861
8862 pub fn go_to_type_definition(
8863 &mut self,
8864 _: &GoToTypeDefinition,
8865 cx: &mut ViewContext<Self>,
8866 ) -> Task<Result<bool>> {
8867 self.go_to_definition_of_kind(GotoDefinitionKind::Type, false, cx)
8868 }
8869
8870 pub fn go_to_definition_split(
8871 &mut self,
8872 _: &GoToDefinitionSplit,
8873 cx: &mut ViewContext<Self>,
8874 ) -> Task<Result<bool>> {
8875 self.go_to_definition_of_kind(GotoDefinitionKind::Symbol, true, cx)
8876 }
8877
8878 pub fn go_to_type_definition_split(
8879 &mut self,
8880 _: &GoToTypeDefinitionSplit,
8881 cx: &mut ViewContext<Self>,
8882 ) -> Task<Result<bool>> {
8883 self.go_to_definition_of_kind(GotoDefinitionKind::Type, true, cx)
8884 }
8885
8886 fn go_to_definition_of_kind(
8887 &mut self,
8888 kind: GotoDefinitionKind,
8889 split: bool,
8890 cx: &mut ViewContext<Self>,
8891 ) -> Task<Result<bool>> {
8892 let Some(workspace) = self.workspace() else {
8893 return Task::ready(Ok(false));
8894 };
8895 let buffer = self.buffer.read(cx);
8896 let head = self.selections.newest::<usize>(cx).head();
8897 let (buffer, head) = if let Some(text_anchor) = buffer.text_anchor_for_position(head, cx) {
8898 text_anchor
8899 } else {
8900 return Task::ready(Ok(false));
8901 };
8902
8903 let project = workspace.read(cx).project().clone();
8904 let definitions = project.update(cx, |project, cx| match kind {
8905 GotoDefinitionKind::Symbol => project.definition(&buffer, head, cx),
8906 GotoDefinitionKind::Type => project.type_definition(&buffer, head, cx),
8907 GotoDefinitionKind::Implementation => project.implementation(&buffer, head, cx),
8908 });
8909
8910 cx.spawn(|editor, mut cx| async move {
8911 let definitions = definitions.await?;
8912 let navigated = editor
8913 .update(&mut cx, |editor, cx| {
8914 editor.navigate_to_hover_links(
8915 Some(kind),
8916 definitions
8917 .into_iter()
8918 .filter(|location| {
8919 hover_links::exclude_link_to_position(&buffer, &head, location, cx)
8920 })
8921 .map(HoverLink::Text)
8922 .collect::<Vec<_>>(),
8923 split,
8924 cx,
8925 )
8926 })?
8927 .await?;
8928 anyhow::Ok(navigated)
8929 })
8930 }
8931
8932 pub fn open_url(&mut self, _: &OpenUrl, cx: &mut ViewContext<Self>) {
8933 let position = self.selections.newest_anchor().head();
8934 let Some((buffer, buffer_position)) =
8935 self.buffer.read(cx).text_anchor_for_position(position, cx)
8936 else {
8937 return;
8938 };
8939
8940 cx.spawn(|editor, mut cx| async move {
8941 if let Some((_, url)) = find_url(&buffer, buffer_position, cx.clone()) {
8942 editor.update(&mut cx, |_, cx| {
8943 cx.open_url(&url);
8944 })
8945 } else {
8946 Ok(())
8947 }
8948 })
8949 .detach();
8950 }
8951
8952 pub(crate) fn navigate_to_hover_links(
8953 &mut self,
8954 kind: Option<GotoDefinitionKind>,
8955 mut definitions: Vec<HoverLink>,
8956 split: bool,
8957 cx: &mut ViewContext<Editor>,
8958 ) -> Task<Result<bool>> {
8959 // If there is one definition, just open it directly
8960 if definitions.len() == 1 {
8961 let definition = definitions.pop().unwrap();
8962 let target_task = match definition {
8963 HoverLink::Text(link) => Task::Ready(Some(Ok(Some(link.target)))),
8964 HoverLink::InlayHint(lsp_location, server_id) => {
8965 self.compute_target_location(lsp_location, server_id, cx)
8966 }
8967 HoverLink::Url(url) => {
8968 cx.open_url(&url);
8969 Task::ready(Ok(None))
8970 }
8971 };
8972 cx.spawn(|editor, mut cx| async move {
8973 let target = target_task.await.context("target resolution task")?;
8974 if let Some(target) = target {
8975 editor.update(&mut cx, |editor, cx| {
8976 let Some(workspace) = editor.workspace() else {
8977 return false;
8978 };
8979 let pane = workspace.read(cx).active_pane().clone();
8980
8981 let range = target.range.to_offset(target.buffer.read(cx));
8982 let range = editor.range_for_match(&range);
8983
8984 /// If select range has more than one line, we
8985 /// just point the cursor to range.start.
8986 fn check_multiline_range(
8987 buffer: &Buffer,
8988 range: Range<usize>,
8989 ) -> Range<usize> {
8990 if buffer.offset_to_point(range.start).row
8991 == buffer.offset_to_point(range.end).row
8992 {
8993 range
8994 } else {
8995 range.start..range.start
8996 }
8997 }
8998
8999 if Some(&target.buffer) == editor.buffer.read(cx).as_singleton().as_ref() {
9000 let buffer = target.buffer.read(cx);
9001 let range = check_multiline_range(buffer, range);
9002 editor.change_selections(Some(Autoscroll::focused()), cx, |s| {
9003 s.select_ranges([range]);
9004 });
9005 } else {
9006 cx.window_context().defer(move |cx| {
9007 let target_editor: View<Self> =
9008 workspace.update(cx, |workspace, cx| {
9009 let pane = if split {
9010 workspace.adjacent_pane(cx)
9011 } else {
9012 workspace.active_pane().clone()
9013 };
9014
9015 workspace.open_project_item(pane, target.buffer.clone(), cx)
9016 });
9017 target_editor.update(cx, |target_editor, cx| {
9018 // When selecting a definition in a different buffer, disable the nav history
9019 // to avoid creating a history entry at the previous cursor location.
9020 pane.update(cx, |pane, _| pane.disable_history());
9021 let buffer = target.buffer.read(cx);
9022 let range = check_multiline_range(buffer, range);
9023 target_editor.change_selections(
9024 Some(Autoscroll::focused()),
9025 cx,
9026 |s| {
9027 s.select_ranges([range]);
9028 },
9029 );
9030 pane.update(cx, |pane, _| pane.enable_history());
9031 });
9032 });
9033 }
9034 true
9035 })
9036 } else {
9037 Ok(false)
9038 }
9039 })
9040 } else if !definitions.is_empty() {
9041 let replica_id = self.replica_id(cx);
9042 cx.spawn(|editor, mut cx| async move {
9043 let (title, location_tasks, workspace) = editor
9044 .update(&mut cx, |editor, cx| {
9045 let tab_kind = match kind {
9046 Some(GotoDefinitionKind::Implementation) => "Implementations",
9047 _ => "Definitions",
9048 };
9049 let title = definitions
9050 .iter()
9051 .find_map(|definition| match definition {
9052 HoverLink::Text(link) => link.origin.as_ref().map(|origin| {
9053 let buffer = origin.buffer.read(cx);
9054 format!(
9055 "{} for {}",
9056 tab_kind,
9057 buffer
9058 .text_for_range(origin.range.clone())
9059 .collect::<String>()
9060 )
9061 }),
9062 HoverLink::InlayHint(_, _) => None,
9063 HoverLink::Url(_) => None,
9064 })
9065 .unwrap_or(tab_kind.to_string());
9066 let location_tasks = definitions
9067 .into_iter()
9068 .map(|definition| match definition {
9069 HoverLink::Text(link) => Task::Ready(Some(Ok(Some(link.target)))),
9070 HoverLink::InlayHint(lsp_location, server_id) => {
9071 editor.compute_target_location(lsp_location, server_id, cx)
9072 }
9073 HoverLink::Url(_) => Task::ready(Ok(None)),
9074 })
9075 .collect::<Vec<_>>();
9076 (title, location_tasks, editor.workspace().clone())
9077 })
9078 .context("location tasks preparation")?;
9079
9080 let locations = futures::future::join_all(location_tasks)
9081 .await
9082 .into_iter()
9083 .filter_map(|location| location.transpose())
9084 .collect::<Result<_>>()
9085 .context("location tasks")?;
9086
9087 let Some(workspace) = workspace else {
9088 return Ok(false);
9089 };
9090 let opened = workspace
9091 .update(&mut cx, |workspace, cx| {
9092 Self::open_locations_in_multibuffer(
9093 workspace, locations, replica_id, title, split, cx,
9094 )
9095 })
9096 .ok();
9097
9098 anyhow::Ok(opened.is_some())
9099 })
9100 } else {
9101 Task::ready(Ok(false))
9102 }
9103 }
9104
9105 fn compute_target_location(
9106 &self,
9107 lsp_location: lsp::Location,
9108 server_id: LanguageServerId,
9109 cx: &mut ViewContext<Editor>,
9110 ) -> Task<anyhow::Result<Option<Location>>> {
9111 let Some(project) = self.project.clone() else {
9112 return Task::Ready(Some(Ok(None)));
9113 };
9114
9115 cx.spawn(move |editor, mut cx| async move {
9116 let location_task = editor.update(&mut cx, |editor, cx| {
9117 project.update(cx, |project, cx| {
9118 let language_server_name =
9119 editor.buffer.read(cx).as_singleton().and_then(|buffer| {
9120 project
9121 .language_server_for_buffer(buffer.read(cx), server_id, cx)
9122 .map(|(lsp_adapter, _)| lsp_adapter.name.clone())
9123 });
9124 language_server_name.map(|language_server_name| {
9125 project.open_local_buffer_via_lsp(
9126 lsp_location.uri.clone(),
9127 server_id,
9128 language_server_name,
9129 cx,
9130 )
9131 })
9132 })
9133 })?;
9134 let location = match location_task {
9135 Some(task) => Some({
9136 let target_buffer_handle = task.await.context("open local buffer")?;
9137 let range = target_buffer_handle.update(&mut cx, |target_buffer, _| {
9138 let target_start = target_buffer
9139 .clip_point_utf16(point_from_lsp(lsp_location.range.start), Bias::Left);
9140 let target_end = target_buffer
9141 .clip_point_utf16(point_from_lsp(lsp_location.range.end), Bias::Left);
9142 target_buffer.anchor_after(target_start)
9143 ..target_buffer.anchor_before(target_end)
9144 })?;
9145 Location {
9146 buffer: target_buffer_handle,
9147 range,
9148 }
9149 }),
9150 None => None,
9151 };
9152 Ok(location)
9153 })
9154 }
9155
9156 pub fn find_all_references(
9157 &mut self,
9158 _: &FindAllReferences,
9159 cx: &mut ViewContext<Self>,
9160 ) -> Option<Task<Result<()>>> {
9161 let multi_buffer = self.buffer.read(cx);
9162 let selection = self.selections.newest::<usize>(cx);
9163 let head = selection.head();
9164
9165 let multi_buffer_snapshot = multi_buffer.snapshot(cx);
9166 let head_anchor = multi_buffer_snapshot.anchor_at(
9167 head,
9168 if head < selection.tail() {
9169 Bias::Right
9170 } else {
9171 Bias::Left
9172 },
9173 );
9174
9175 match self
9176 .find_all_references_task_sources
9177 .binary_search_by(|anchor| anchor.cmp(&head_anchor, &multi_buffer_snapshot))
9178 {
9179 Ok(_) => {
9180 log::info!(
9181 "Ignoring repeated FindAllReferences invocation with the position of already running task"
9182 );
9183 return None;
9184 }
9185 Err(i) => {
9186 self.find_all_references_task_sources.insert(i, head_anchor);
9187 }
9188 }
9189
9190 let (buffer, head) = multi_buffer.text_anchor_for_position(head, cx)?;
9191 let replica_id = self.replica_id(cx);
9192 let workspace = self.workspace()?;
9193 let project = workspace.read(cx).project().clone();
9194 let references = project.update(cx, |project, cx| project.references(&buffer, head, cx));
9195 Some(cx.spawn(|editor, mut cx| async move {
9196 let _cleanup = defer({
9197 let mut cx = cx.clone();
9198 move || {
9199 let _ = editor.update(&mut cx, |editor, _| {
9200 if let Ok(i) =
9201 editor
9202 .find_all_references_task_sources
9203 .binary_search_by(|anchor| {
9204 anchor.cmp(&head_anchor, &multi_buffer_snapshot)
9205 })
9206 {
9207 editor.find_all_references_task_sources.remove(i);
9208 }
9209 });
9210 }
9211 });
9212
9213 let locations = references.await?;
9214 if locations.is_empty() {
9215 return anyhow::Ok(());
9216 }
9217
9218 workspace.update(&mut cx, |workspace, cx| {
9219 let title = locations
9220 .first()
9221 .as_ref()
9222 .map(|location| {
9223 let buffer = location.buffer.read(cx);
9224 format!(
9225 "References to `{}`",
9226 buffer
9227 .text_for_range(location.range.clone())
9228 .collect::<String>()
9229 )
9230 })
9231 .unwrap();
9232 Self::open_locations_in_multibuffer(
9233 workspace, locations, replica_id, title, false, cx,
9234 );
9235 })
9236 }))
9237 }
9238
9239 /// Opens a multibuffer with the given project locations in it
9240 pub fn open_locations_in_multibuffer(
9241 workspace: &mut Workspace,
9242 mut locations: Vec<Location>,
9243 replica_id: ReplicaId,
9244 title: String,
9245 split: bool,
9246 cx: &mut ViewContext<Workspace>,
9247 ) {
9248 // If there are multiple definitions, open them in a multibuffer
9249 locations.sort_by_key(|location| location.buffer.read(cx).remote_id());
9250 let mut locations = locations.into_iter().peekable();
9251 let mut ranges_to_highlight = Vec::new();
9252 let capability = workspace.project().read(cx).capability();
9253
9254 let excerpt_buffer = cx.new_model(|cx| {
9255 let mut multibuffer = MultiBuffer::new(replica_id, capability);
9256 while let Some(location) = locations.next() {
9257 let buffer = location.buffer.read(cx);
9258 let mut ranges_for_buffer = Vec::new();
9259 let range = location.range.to_offset(buffer);
9260 ranges_for_buffer.push(range.clone());
9261
9262 while let Some(next_location) = locations.peek() {
9263 if next_location.buffer == location.buffer {
9264 ranges_for_buffer.push(next_location.range.to_offset(buffer));
9265 locations.next();
9266 } else {
9267 break;
9268 }
9269 }
9270
9271 ranges_for_buffer.sort_by_key(|range| (range.start, Reverse(range.end)));
9272 ranges_to_highlight.extend(multibuffer.push_excerpts_with_context_lines(
9273 location.buffer.clone(),
9274 ranges_for_buffer,
9275 DEFAULT_MULTIBUFFER_CONTEXT,
9276 cx,
9277 ))
9278 }
9279
9280 multibuffer.with_title(title)
9281 });
9282
9283 let editor = cx.new_view(|cx| {
9284 Editor::for_multibuffer(excerpt_buffer, Some(workspace.project().clone()), true, cx)
9285 });
9286 editor.update(cx, |editor, cx| {
9287 if let Some(first_range) = ranges_to_highlight.first() {
9288 editor.change_selections(None, cx, |selections| {
9289 selections.clear_disjoint();
9290 selections.select_anchor_ranges(std::iter::once(first_range.clone()));
9291 });
9292 }
9293 editor.highlight_background::<Self>(
9294 &ranges_to_highlight,
9295 |theme| theme.editor_highlighted_line_background,
9296 cx,
9297 );
9298 });
9299
9300 let item = Box::new(editor);
9301 let item_id = item.item_id();
9302
9303 if split {
9304 workspace.split_item(SplitDirection::Right, item.clone(), cx);
9305 } else {
9306 let destination_index = workspace.active_pane().update(cx, |pane, cx| {
9307 if PreviewTabsSettings::get_global(cx).enable_preview_from_code_navigation {
9308 pane.close_current_preview_item(cx)
9309 } else {
9310 None
9311 }
9312 });
9313 workspace.add_item_to_active_pane(item.clone(), destination_index, cx);
9314 }
9315 workspace.active_pane().update(cx, |pane, cx| {
9316 pane.set_preview_item_id(Some(item_id), cx);
9317 });
9318 }
9319
9320 pub fn rename(&mut self, _: &Rename, cx: &mut ViewContext<Self>) -> Option<Task<Result<()>>> {
9321 use language::ToOffset as _;
9322
9323 let project = self.project.clone()?;
9324 let selection = self.selections.newest_anchor().clone();
9325 let (cursor_buffer, cursor_buffer_position) = self
9326 .buffer
9327 .read(cx)
9328 .text_anchor_for_position(selection.head(), cx)?;
9329 let (tail_buffer, cursor_buffer_position_end) = self
9330 .buffer
9331 .read(cx)
9332 .text_anchor_for_position(selection.tail(), cx)?;
9333 if tail_buffer != cursor_buffer {
9334 return None;
9335 }
9336
9337 let snapshot = cursor_buffer.read(cx).snapshot();
9338 let cursor_buffer_offset = cursor_buffer_position.to_offset(&snapshot);
9339 let cursor_buffer_offset_end = cursor_buffer_position_end.to_offset(&snapshot);
9340 let prepare_rename = project.update(cx, |project, cx| {
9341 project.prepare_rename(cursor_buffer.clone(), cursor_buffer_offset, cx)
9342 });
9343 drop(snapshot);
9344
9345 Some(cx.spawn(|this, mut cx| async move {
9346 let rename_range = if let Some(range) = prepare_rename.await? {
9347 Some(range)
9348 } else {
9349 this.update(&mut cx, |this, cx| {
9350 let buffer = this.buffer.read(cx).snapshot(cx);
9351 let mut buffer_highlights = this
9352 .document_highlights_for_position(selection.head(), &buffer)
9353 .filter(|highlight| {
9354 highlight.start.excerpt_id == selection.head().excerpt_id
9355 && highlight.end.excerpt_id == selection.head().excerpt_id
9356 });
9357 buffer_highlights
9358 .next()
9359 .map(|highlight| highlight.start.text_anchor..highlight.end.text_anchor)
9360 })?
9361 };
9362 if let Some(rename_range) = rename_range {
9363 this.update(&mut cx, |this, cx| {
9364 let snapshot = cursor_buffer.read(cx).snapshot();
9365 let rename_buffer_range = rename_range.to_offset(&snapshot);
9366 let cursor_offset_in_rename_range =
9367 cursor_buffer_offset.saturating_sub(rename_buffer_range.start);
9368 let cursor_offset_in_rename_range_end =
9369 cursor_buffer_offset_end.saturating_sub(rename_buffer_range.start);
9370
9371 this.take_rename(false, cx);
9372 let buffer = this.buffer.read(cx).read(cx);
9373 let cursor_offset = selection.head().to_offset(&buffer);
9374 let rename_start = cursor_offset.saturating_sub(cursor_offset_in_rename_range);
9375 let rename_end = rename_start + rename_buffer_range.len();
9376 let range = buffer.anchor_before(rename_start)..buffer.anchor_after(rename_end);
9377 let mut old_highlight_id = None;
9378 let old_name: Arc<str> = buffer
9379 .chunks(rename_start..rename_end, true)
9380 .map(|chunk| {
9381 if old_highlight_id.is_none() {
9382 old_highlight_id = chunk.syntax_highlight_id;
9383 }
9384 chunk.text
9385 })
9386 .collect::<String>()
9387 .into();
9388
9389 drop(buffer);
9390
9391 // Position the selection in the rename editor so that it matches the current selection.
9392 this.show_local_selections = false;
9393 let rename_editor = cx.new_view(|cx| {
9394 let mut editor = Editor::single_line(cx);
9395 editor.buffer.update(cx, |buffer, cx| {
9396 buffer.edit([(0..0, old_name.clone())], None, cx)
9397 });
9398 let rename_selection_range = match cursor_offset_in_rename_range
9399 .cmp(&cursor_offset_in_rename_range_end)
9400 {
9401 Ordering::Equal => {
9402 editor.select_all(&SelectAll, cx);
9403 return editor;
9404 }
9405 Ordering::Less => {
9406 cursor_offset_in_rename_range..cursor_offset_in_rename_range_end
9407 }
9408 Ordering::Greater => {
9409 cursor_offset_in_rename_range_end..cursor_offset_in_rename_range
9410 }
9411 };
9412 if rename_selection_range.end > old_name.len() {
9413 editor.select_all(&SelectAll, cx);
9414 } else {
9415 editor.change_selections(Some(Autoscroll::fit()), cx, |s| {
9416 s.select_ranges([rename_selection_range]);
9417 });
9418 }
9419 editor
9420 });
9421
9422 let write_highlights =
9423 this.clear_background_highlights::<DocumentHighlightWrite>(cx);
9424 let read_highlights =
9425 this.clear_background_highlights::<DocumentHighlightRead>(cx);
9426 let ranges = write_highlights
9427 .iter()
9428 .flat_map(|(_, ranges)| ranges.iter())
9429 .chain(read_highlights.iter().flat_map(|(_, ranges)| ranges.iter()))
9430 .cloned()
9431 .collect();
9432
9433 this.highlight_text::<Rename>(
9434 ranges,
9435 HighlightStyle {
9436 fade_out: Some(0.6),
9437 ..Default::default()
9438 },
9439 cx,
9440 );
9441 let rename_focus_handle = rename_editor.focus_handle(cx);
9442 cx.focus(&rename_focus_handle);
9443 let block_id = this.insert_blocks(
9444 [BlockProperties {
9445 style: BlockStyle::Flex,
9446 position: range.start,
9447 height: 1,
9448 render: Box::new({
9449 let rename_editor = rename_editor.clone();
9450 move |cx: &mut BlockContext| {
9451 let mut text_style = cx.editor_style.text.clone();
9452 if let Some(highlight_style) = old_highlight_id
9453 .and_then(|h| h.style(&cx.editor_style.syntax))
9454 {
9455 text_style = text_style.highlight(highlight_style);
9456 }
9457 div()
9458 .pl(cx.anchor_x)
9459 .child(EditorElement::new(
9460 &rename_editor,
9461 EditorStyle {
9462 background: cx.theme().system().transparent,
9463 local_player: cx.editor_style.local_player,
9464 text: text_style,
9465 scrollbar_width: cx.editor_style.scrollbar_width,
9466 syntax: cx.editor_style.syntax.clone(),
9467 status: cx.editor_style.status.clone(),
9468 inlay_hints_style: HighlightStyle {
9469 color: Some(cx.theme().status().hint),
9470 font_weight: Some(FontWeight::BOLD),
9471 ..HighlightStyle::default()
9472 },
9473 suggestions_style: HighlightStyle {
9474 color: Some(cx.theme().status().predictive),
9475 ..HighlightStyle::default()
9476 },
9477 },
9478 ))
9479 .into_any_element()
9480 }
9481 }),
9482 disposition: BlockDisposition::Below,
9483 }],
9484 Some(Autoscroll::fit()),
9485 cx,
9486 )[0];
9487 this.pending_rename = Some(RenameState {
9488 range,
9489 old_name,
9490 editor: rename_editor,
9491 block_id,
9492 });
9493 })?;
9494 }
9495
9496 Ok(())
9497 }))
9498 }
9499
9500 pub fn confirm_rename(
9501 &mut self,
9502 _: &ConfirmRename,
9503 cx: &mut ViewContext<Self>,
9504 ) -> Option<Task<Result<()>>> {
9505 let rename = self.take_rename(false, cx)?;
9506 let workspace = self.workspace()?;
9507 let (start_buffer, start) = self
9508 .buffer
9509 .read(cx)
9510 .text_anchor_for_position(rename.range.start, cx)?;
9511 let (end_buffer, end) = self
9512 .buffer
9513 .read(cx)
9514 .text_anchor_for_position(rename.range.end, cx)?;
9515 if start_buffer != end_buffer {
9516 return None;
9517 }
9518
9519 let buffer = start_buffer;
9520 let range = start..end;
9521 let old_name = rename.old_name;
9522 let new_name = rename.editor.read(cx).text(cx);
9523
9524 let rename = workspace
9525 .read(cx)
9526 .project()
9527 .clone()
9528 .update(cx, |project, cx| {
9529 project.perform_rename(buffer.clone(), range.start, new_name.clone(), true, cx)
9530 });
9531 let workspace = workspace.downgrade();
9532
9533 Some(cx.spawn(|editor, mut cx| async move {
9534 let project_transaction = rename.await?;
9535 Self::open_project_transaction(
9536 &editor,
9537 workspace,
9538 project_transaction,
9539 format!("Rename: {} → {}", old_name, new_name),
9540 cx.clone(),
9541 )
9542 .await?;
9543
9544 editor.update(&mut cx, |editor, cx| {
9545 editor.refresh_document_highlights(cx);
9546 })?;
9547 Ok(())
9548 }))
9549 }
9550
9551 fn take_rename(
9552 &mut self,
9553 moving_cursor: bool,
9554 cx: &mut ViewContext<Self>,
9555 ) -> Option<RenameState> {
9556 let rename = self.pending_rename.take()?;
9557 if rename.editor.focus_handle(cx).is_focused(cx) {
9558 cx.focus(&self.focus_handle);
9559 }
9560
9561 self.remove_blocks(
9562 [rename.block_id].into_iter().collect(),
9563 Some(Autoscroll::fit()),
9564 cx,
9565 );
9566 self.clear_highlights::<Rename>(cx);
9567 self.show_local_selections = true;
9568
9569 if moving_cursor {
9570 let rename_editor = rename.editor.read(cx);
9571 let cursor_in_rename_editor = rename_editor.selections.newest::<usize>(cx).head();
9572
9573 // Update the selection to match the position of the selection inside
9574 // the rename editor.
9575 let snapshot = self.buffer.read(cx).read(cx);
9576 let rename_range = rename.range.to_offset(&snapshot);
9577 let cursor_in_editor = snapshot
9578 .clip_offset(rename_range.start + cursor_in_rename_editor, Bias::Left)
9579 .min(rename_range.end);
9580 drop(snapshot);
9581
9582 self.change_selections(None, cx, |s| {
9583 s.select_ranges(vec![cursor_in_editor..cursor_in_editor])
9584 });
9585 } else {
9586 self.refresh_document_highlights(cx);
9587 }
9588
9589 Some(rename)
9590 }
9591
9592 pub fn pending_rename(&self) -> Option<&RenameState> {
9593 self.pending_rename.as_ref()
9594 }
9595
9596 fn format(&mut self, _: &Format, cx: &mut ViewContext<Self>) -> Option<Task<Result<()>>> {
9597 let project = match &self.project {
9598 Some(project) => project.clone(),
9599 None => return None,
9600 };
9601
9602 Some(self.perform_format(project, FormatTrigger::Manual, cx))
9603 }
9604
9605 fn perform_format(
9606 &mut self,
9607 project: Model<Project>,
9608 trigger: FormatTrigger,
9609 cx: &mut ViewContext<Self>,
9610 ) -> Task<Result<()>> {
9611 let buffer = self.buffer().clone();
9612 let mut buffers = buffer.read(cx).all_buffers();
9613 if trigger == FormatTrigger::Save {
9614 buffers.retain(|buffer| buffer.read(cx).is_dirty());
9615 }
9616
9617 let mut timeout = cx.background_executor().timer(FORMAT_TIMEOUT).fuse();
9618 let format = project.update(cx, |project, cx| project.format(buffers, true, trigger, cx));
9619
9620 cx.spawn(|_, mut cx| async move {
9621 let transaction = futures::select_biased! {
9622 () = timeout => {
9623 log::warn!("timed out waiting for formatting");
9624 None
9625 }
9626 transaction = format.log_err().fuse() => transaction,
9627 };
9628
9629 buffer
9630 .update(&mut cx, |buffer, cx| {
9631 if let Some(transaction) = transaction {
9632 if !buffer.is_singleton() {
9633 buffer.push_transaction(&transaction.0, cx);
9634 }
9635 }
9636
9637 cx.notify();
9638 })
9639 .ok();
9640
9641 Ok(())
9642 })
9643 }
9644
9645 fn restart_language_server(&mut self, _: &RestartLanguageServer, cx: &mut ViewContext<Self>) {
9646 if let Some(project) = self.project.clone() {
9647 self.buffer.update(cx, |multi_buffer, cx| {
9648 project.update(cx, |project, cx| {
9649 project.restart_language_servers_for_buffers(multi_buffer.all_buffers(), cx);
9650 });
9651 })
9652 }
9653 }
9654
9655 fn cancel_language_server_work(
9656 &mut self,
9657 _: &CancelLanguageServerWork,
9658 cx: &mut ViewContext<Self>,
9659 ) {
9660 if let Some(project) = self.project.clone() {
9661 self.buffer.update(cx, |multi_buffer, cx| {
9662 project.update(cx, |project, cx| {
9663 project.cancel_language_server_work_for_buffers(multi_buffer.all_buffers(), cx);
9664 });
9665 })
9666 }
9667 }
9668
9669 fn show_character_palette(&mut self, _: &ShowCharacterPalette, cx: &mut ViewContext<Self>) {
9670 cx.show_character_palette();
9671 }
9672
9673 fn refresh_active_diagnostics(&mut self, cx: &mut ViewContext<Editor>) {
9674 if let Some(active_diagnostics) = self.active_diagnostics.as_mut() {
9675 let buffer = self.buffer.read(cx).snapshot(cx);
9676 let primary_range_start = active_diagnostics.primary_range.start.to_offset(&buffer);
9677 let is_valid = buffer
9678 .diagnostics_in_range::<_, usize>(active_diagnostics.primary_range.clone(), false)
9679 .any(|entry| {
9680 entry.diagnostic.is_primary
9681 && !entry.range.is_empty()
9682 && entry.range.start == primary_range_start
9683 && entry.diagnostic.message == active_diagnostics.primary_message
9684 });
9685
9686 if is_valid != active_diagnostics.is_valid {
9687 active_diagnostics.is_valid = is_valid;
9688 let mut new_styles = HashMap::default();
9689 for (block_id, diagnostic) in &active_diagnostics.blocks {
9690 new_styles.insert(
9691 *block_id,
9692 (
9693 None,
9694 diagnostic_block_renderer(diagnostic.clone(), is_valid),
9695 ),
9696 );
9697 }
9698 self.display_map.update(cx, |display_map, cx| {
9699 display_map.replace_blocks(new_styles, cx)
9700 });
9701 }
9702 }
9703 }
9704
9705 fn activate_diagnostics(&mut self, group_id: usize, cx: &mut ViewContext<Self>) -> bool {
9706 self.dismiss_diagnostics(cx);
9707 let snapshot = self.snapshot(cx);
9708 self.active_diagnostics = self.display_map.update(cx, |display_map, cx| {
9709 let buffer = self.buffer.read(cx).snapshot(cx);
9710
9711 let mut primary_range = None;
9712 let mut primary_message = None;
9713 let mut group_end = Point::zero();
9714 let diagnostic_group = buffer
9715 .diagnostic_group::<MultiBufferPoint>(group_id)
9716 .filter_map(|entry| {
9717 if snapshot.is_line_folded(MultiBufferRow(entry.range.start.row))
9718 && (entry.range.start.row == entry.range.end.row
9719 || snapshot.is_line_folded(MultiBufferRow(entry.range.end.row)))
9720 {
9721 return None;
9722 }
9723 if entry.range.end > group_end {
9724 group_end = entry.range.end;
9725 }
9726 if entry.diagnostic.is_primary {
9727 primary_range = Some(entry.range.clone());
9728 primary_message = Some(entry.diagnostic.message.clone());
9729 }
9730 Some(entry)
9731 })
9732 .collect::<Vec<_>>();
9733 let primary_range = primary_range?;
9734 let primary_message = primary_message?;
9735 let primary_range =
9736 buffer.anchor_after(primary_range.start)..buffer.anchor_before(primary_range.end);
9737
9738 let blocks = display_map
9739 .insert_blocks(
9740 diagnostic_group.iter().map(|entry| {
9741 let diagnostic = entry.diagnostic.clone();
9742 let message_height = diagnostic.message.matches('\n').count() as u8 + 1;
9743 BlockProperties {
9744 style: BlockStyle::Fixed,
9745 position: buffer.anchor_after(entry.range.start),
9746 height: message_height,
9747 render: diagnostic_block_renderer(diagnostic, true),
9748 disposition: BlockDisposition::Below,
9749 }
9750 }),
9751 cx,
9752 )
9753 .into_iter()
9754 .zip(diagnostic_group.into_iter().map(|entry| entry.diagnostic))
9755 .collect();
9756
9757 Some(ActiveDiagnosticGroup {
9758 primary_range,
9759 primary_message,
9760 group_id,
9761 blocks,
9762 is_valid: true,
9763 })
9764 });
9765 self.active_diagnostics.is_some()
9766 }
9767
9768 fn dismiss_diagnostics(&mut self, cx: &mut ViewContext<Self>) {
9769 if let Some(active_diagnostic_group) = self.active_diagnostics.take() {
9770 self.display_map.update(cx, |display_map, cx| {
9771 display_map.remove_blocks(active_diagnostic_group.blocks.into_keys().collect(), cx);
9772 });
9773 cx.notify();
9774 }
9775 }
9776
9777 pub fn set_selections_from_remote(
9778 &mut self,
9779 selections: Vec<Selection<Anchor>>,
9780 pending_selection: Option<Selection<Anchor>>,
9781 cx: &mut ViewContext<Self>,
9782 ) {
9783 let old_cursor_position = self.selections.newest_anchor().head();
9784 self.selections.change_with(cx, |s| {
9785 s.select_anchors(selections);
9786 if let Some(pending_selection) = pending_selection {
9787 s.set_pending(pending_selection, SelectMode::Character);
9788 } else {
9789 s.clear_pending();
9790 }
9791 });
9792 self.selections_did_change(false, &old_cursor_position, true, cx);
9793 }
9794
9795 fn push_to_selection_history(&mut self) {
9796 self.selection_history.push(SelectionHistoryEntry {
9797 selections: self.selections.disjoint_anchors(),
9798 select_next_state: self.select_next_state.clone(),
9799 select_prev_state: self.select_prev_state.clone(),
9800 add_selections_state: self.add_selections_state.clone(),
9801 });
9802 }
9803
9804 pub fn transact(
9805 &mut self,
9806 cx: &mut ViewContext<Self>,
9807 update: impl FnOnce(&mut Self, &mut ViewContext<Self>),
9808 ) -> Option<TransactionId> {
9809 self.start_transaction_at(Instant::now(), cx);
9810 update(self, cx);
9811 self.end_transaction_at(Instant::now(), cx)
9812 }
9813
9814 fn start_transaction_at(&mut self, now: Instant, cx: &mut ViewContext<Self>) {
9815 self.end_selection(cx);
9816 if let Some(tx_id) = self
9817 .buffer
9818 .update(cx, |buffer, cx| buffer.start_transaction_at(now, cx))
9819 {
9820 self.selection_history
9821 .insert_transaction(tx_id, self.selections.disjoint_anchors());
9822 cx.emit(EditorEvent::TransactionBegun {
9823 transaction_id: tx_id,
9824 })
9825 }
9826 }
9827
9828 fn end_transaction_at(
9829 &mut self,
9830 now: Instant,
9831 cx: &mut ViewContext<Self>,
9832 ) -> Option<TransactionId> {
9833 if let Some(transaction_id) = self
9834 .buffer
9835 .update(cx, |buffer, cx| buffer.end_transaction_at(now, cx))
9836 {
9837 if let Some((_, end_selections)) =
9838 self.selection_history.transaction_mut(transaction_id)
9839 {
9840 *end_selections = Some(self.selections.disjoint_anchors());
9841 } else {
9842 log::error!("unexpectedly ended a transaction that wasn't started by this editor");
9843 }
9844
9845 cx.emit(EditorEvent::Edited { transaction_id });
9846 Some(transaction_id)
9847 } else {
9848 None
9849 }
9850 }
9851
9852 pub fn fold(&mut self, _: &actions::Fold, cx: &mut ViewContext<Self>) {
9853 let mut fold_ranges = Vec::new();
9854
9855 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
9856
9857 let selections = self.selections.all_adjusted(cx);
9858 for selection in selections {
9859 let range = selection.range().sorted();
9860 let buffer_start_row = range.start.row;
9861
9862 for row in (0..=range.end.row).rev() {
9863 if let Some((foldable_range, fold_text)) =
9864 display_map.foldable_range(MultiBufferRow(row))
9865 {
9866 if foldable_range.end.row >= buffer_start_row {
9867 fold_ranges.push((foldable_range, fold_text));
9868 if row <= range.start.row {
9869 break;
9870 }
9871 }
9872 }
9873 }
9874 }
9875
9876 self.fold_ranges(fold_ranges, true, cx);
9877 }
9878
9879 pub fn fold_at(&mut self, fold_at: &FoldAt, cx: &mut ViewContext<Self>) {
9880 let buffer_row = fold_at.buffer_row;
9881 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
9882
9883 if let Some((fold_range, placeholder)) = display_map.foldable_range(buffer_row) {
9884 let autoscroll = self
9885 .selections
9886 .all::<Point>(cx)
9887 .iter()
9888 .any(|selection| fold_range.overlaps(&selection.range()));
9889
9890 self.fold_ranges([(fold_range, placeholder)], autoscroll, cx);
9891 }
9892 }
9893
9894 pub fn unfold_lines(&mut self, _: &UnfoldLines, cx: &mut ViewContext<Self>) {
9895 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
9896 let buffer = &display_map.buffer_snapshot;
9897 let selections = self.selections.all::<Point>(cx);
9898 let ranges = selections
9899 .iter()
9900 .map(|s| {
9901 let range = s.display_range(&display_map).sorted();
9902 let mut start = range.start.to_point(&display_map);
9903 let mut end = range.end.to_point(&display_map);
9904 start.column = 0;
9905 end.column = buffer.line_len(MultiBufferRow(end.row));
9906 start..end
9907 })
9908 .collect::<Vec<_>>();
9909
9910 self.unfold_ranges(ranges, true, true, cx);
9911 }
9912
9913 pub fn unfold_at(&mut self, unfold_at: &UnfoldAt, cx: &mut ViewContext<Self>) {
9914 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
9915
9916 let intersection_range = Point::new(unfold_at.buffer_row.0, 0)
9917 ..Point::new(
9918 unfold_at.buffer_row.0,
9919 display_map.buffer_snapshot.line_len(unfold_at.buffer_row),
9920 );
9921
9922 let autoscroll = self
9923 .selections
9924 .all::<Point>(cx)
9925 .iter()
9926 .any(|selection| selection.range().overlaps(&intersection_range));
9927
9928 self.unfold_ranges(std::iter::once(intersection_range), true, autoscroll, cx)
9929 }
9930
9931 pub fn fold_selected_ranges(&mut self, _: &FoldSelectedRanges, cx: &mut ViewContext<Self>) {
9932 let selections = self.selections.all::<Point>(cx);
9933 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
9934 let line_mode = self.selections.line_mode;
9935 let ranges = selections.into_iter().map(|s| {
9936 if line_mode {
9937 let start = Point::new(s.start.row, 0);
9938 let end = Point::new(
9939 s.end.row,
9940 display_map
9941 .buffer_snapshot
9942 .line_len(MultiBufferRow(s.end.row)),
9943 );
9944 (start..end, display_map.fold_placeholder.clone())
9945 } else {
9946 (s.start..s.end, display_map.fold_placeholder.clone())
9947 }
9948 });
9949 self.fold_ranges(ranges, true, cx);
9950 }
9951
9952 pub fn fold_ranges<T: ToOffset + Clone>(
9953 &mut self,
9954 ranges: impl IntoIterator<Item = (Range<T>, FoldPlaceholder)>,
9955 auto_scroll: bool,
9956 cx: &mut ViewContext<Self>,
9957 ) {
9958 let mut fold_ranges = Vec::new();
9959 let mut buffers_affected = HashMap::default();
9960 let multi_buffer = self.buffer().read(cx);
9961 for (fold_range, fold_text) in ranges {
9962 if let Some((_, buffer, _)) =
9963 multi_buffer.excerpt_containing(fold_range.start.clone(), cx)
9964 {
9965 buffers_affected.insert(buffer.read(cx).remote_id(), buffer);
9966 };
9967 fold_ranges.push((fold_range, fold_text));
9968 }
9969
9970 let mut ranges = fold_ranges.into_iter().peekable();
9971 if ranges.peek().is_some() {
9972 self.display_map.update(cx, |map, cx| map.fold(ranges, cx));
9973
9974 if auto_scroll {
9975 self.request_autoscroll(Autoscroll::fit(), cx);
9976 }
9977
9978 for buffer in buffers_affected.into_values() {
9979 self.sync_expanded_diff_hunks(buffer, cx);
9980 }
9981
9982 cx.notify();
9983
9984 if let Some(active_diagnostics) = self.active_diagnostics.take() {
9985 // Clear diagnostics block when folding a range that contains it.
9986 let snapshot = self.snapshot(cx);
9987 if snapshot.intersects_fold(active_diagnostics.primary_range.start) {
9988 drop(snapshot);
9989 self.active_diagnostics = Some(active_diagnostics);
9990 self.dismiss_diagnostics(cx);
9991 } else {
9992 self.active_diagnostics = Some(active_diagnostics);
9993 }
9994 }
9995
9996 self.scrollbar_marker_state.dirty = true;
9997 }
9998 }
9999
10000 pub fn unfold_ranges<T: ToOffset + Clone>(
10001 &mut self,
10002 ranges: impl IntoIterator<Item = Range<T>>,
10003 inclusive: bool,
10004 auto_scroll: bool,
10005 cx: &mut ViewContext<Self>,
10006 ) {
10007 let mut unfold_ranges = Vec::new();
10008 let mut buffers_affected = HashMap::default();
10009 let multi_buffer = self.buffer().read(cx);
10010 for range in ranges {
10011 if let Some((_, buffer, _)) = multi_buffer.excerpt_containing(range.start.clone(), cx) {
10012 buffers_affected.insert(buffer.read(cx).remote_id(), buffer);
10013 };
10014 unfold_ranges.push(range);
10015 }
10016
10017 let mut ranges = unfold_ranges.into_iter().peekable();
10018 if ranges.peek().is_some() {
10019 self.display_map
10020 .update(cx, |map, cx| map.unfold(ranges, inclusive, cx));
10021 if auto_scroll {
10022 self.request_autoscroll(Autoscroll::fit(), cx);
10023 }
10024
10025 for buffer in buffers_affected.into_values() {
10026 self.sync_expanded_diff_hunks(buffer, cx);
10027 }
10028
10029 cx.notify();
10030 self.scrollbar_marker_state.dirty = true;
10031 self.active_indent_guides_state.dirty = true;
10032 }
10033 }
10034
10035 pub fn set_gutter_hovered(&mut self, hovered: bool, cx: &mut ViewContext<Self>) {
10036 if hovered != self.gutter_hovered {
10037 self.gutter_hovered = hovered;
10038 cx.notify();
10039 }
10040 }
10041
10042 pub fn insert_blocks(
10043 &mut self,
10044 blocks: impl IntoIterator<Item = BlockProperties<Anchor>>,
10045 autoscroll: Option<Autoscroll>,
10046 cx: &mut ViewContext<Self>,
10047 ) -> Vec<BlockId> {
10048 let blocks = self
10049 .display_map
10050 .update(cx, |display_map, cx| display_map.insert_blocks(blocks, cx));
10051 if let Some(autoscroll) = autoscroll {
10052 self.request_autoscroll(autoscroll, cx);
10053 }
10054 blocks
10055 }
10056
10057 pub fn replace_blocks(
10058 &mut self,
10059 blocks: HashMap<BlockId, (Option<u8>, RenderBlock)>,
10060 autoscroll: Option<Autoscroll>,
10061 cx: &mut ViewContext<Self>,
10062 ) {
10063 self.display_map
10064 .update(cx, |display_map, cx| display_map.replace_blocks(blocks, cx));
10065 if let Some(autoscroll) = autoscroll {
10066 self.request_autoscroll(autoscroll, cx);
10067 }
10068 }
10069
10070 pub fn remove_blocks(
10071 &mut self,
10072 block_ids: HashSet<BlockId>,
10073 autoscroll: Option<Autoscroll>,
10074 cx: &mut ViewContext<Self>,
10075 ) {
10076 self.display_map.update(cx, |display_map, cx| {
10077 display_map.remove_blocks(block_ids, cx)
10078 });
10079 if let Some(autoscroll) = autoscroll {
10080 self.request_autoscroll(autoscroll, cx);
10081 }
10082 }
10083
10084 pub fn row_for_block(
10085 &self,
10086 block_id: BlockId,
10087 cx: &mut ViewContext<Self>,
10088 ) -> Option<DisplayRow> {
10089 self.display_map
10090 .update(cx, |map, cx| map.row_for_block(block_id, cx))
10091 }
10092
10093 pub fn insert_creases(
10094 &mut self,
10095 creases: impl IntoIterator<Item = Crease>,
10096 cx: &mut ViewContext<Self>,
10097 ) -> Vec<CreaseId> {
10098 self.display_map
10099 .update(cx, |map, cx| map.insert_creases(creases, cx))
10100 }
10101
10102 pub fn remove_creases(
10103 &mut self,
10104 ids: impl IntoIterator<Item = CreaseId>,
10105 cx: &mut ViewContext<Self>,
10106 ) {
10107 self.display_map
10108 .update(cx, |map, cx| map.remove_creases(ids, cx));
10109 }
10110
10111 pub fn longest_row(&self, cx: &mut AppContext) -> DisplayRow {
10112 self.display_map
10113 .update(cx, |map, cx| map.snapshot(cx))
10114 .longest_row()
10115 }
10116
10117 pub fn max_point(&self, cx: &mut AppContext) -> DisplayPoint {
10118 self.display_map
10119 .update(cx, |map, cx| map.snapshot(cx))
10120 .max_point()
10121 }
10122
10123 pub fn text(&self, cx: &AppContext) -> String {
10124 self.buffer.read(cx).read(cx).text()
10125 }
10126
10127 pub fn text_option(&self, cx: &AppContext) -> Option<String> {
10128 let text = self.text(cx);
10129 let text = text.trim();
10130
10131 if text.is_empty() {
10132 return None;
10133 }
10134
10135 Some(text.to_string())
10136 }
10137
10138 pub fn set_text(&mut self, text: impl Into<Arc<str>>, cx: &mut ViewContext<Self>) {
10139 self.transact(cx, |this, cx| {
10140 this.buffer
10141 .read(cx)
10142 .as_singleton()
10143 .expect("you can only call set_text on editors for singleton buffers")
10144 .update(cx, |buffer, cx| buffer.set_text(text, cx));
10145 });
10146 }
10147
10148 pub fn display_text(&self, cx: &mut AppContext) -> String {
10149 self.display_map
10150 .update(cx, |map, cx| map.snapshot(cx))
10151 .text()
10152 }
10153
10154 pub fn wrap_guides(&self, cx: &AppContext) -> SmallVec<[(usize, bool); 2]> {
10155 let mut wrap_guides = smallvec::smallvec![];
10156
10157 if self.show_wrap_guides == Some(false) {
10158 return wrap_guides;
10159 }
10160
10161 let settings = self.buffer.read(cx).settings_at(0, cx);
10162 if settings.show_wrap_guides {
10163 if let SoftWrap::Column(soft_wrap) = self.soft_wrap_mode(cx) {
10164 wrap_guides.push((soft_wrap as usize, true));
10165 }
10166 wrap_guides.extend(settings.wrap_guides.iter().map(|guide| (*guide, false)))
10167 }
10168
10169 wrap_guides
10170 }
10171
10172 pub fn soft_wrap_mode(&self, cx: &AppContext) -> SoftWrap {
10173 let settings = self.buffer.read(cx).settings_at(0, cx);
10174 let mode = self
10175 .soft_wrap_mode_override
10176 .unwrap_or_else(|| settings.soft_wrap);
10177 match mode {
10178 language_settings::SoftWrap::None => SoftWrap::None,
10179 language_settings::SoftWrap::PreferLine => SoftWrap::PreferLine,
10180 language_settings::SoftWrap::EditorWidth => SoftWrap::EditorWidth,
10181 language_settings::SoftWrap::PreferredLineLength => {
10182 SoftWrap::Column(settings.preferred_line_length)
10183 }
10184 }
10185 }
10186
10187 pub fn set_soft_wrap_mode(
10188 &mut self,
10189 mode: language_settings::SoftWrap,
10190 cx: &mut ViewContext<Self>,
10191 ) {
10192 self.soft_wrap_mode_override = Some(mode);
10193 cx.notify();
10194 }
10195
10196 pub fn set_style(&mut self, style: EditorStyle, cx: &mut ViewContext<Self>) {
10197 let rem_size = cx.rem_size();
10198 self.display_map.update(cx, |map, cx| {
10199 map.set_font(
10200 style.text.font(),
10201 style.text.font_size.to_pixels(rem_size),
10202 cx,
10203 )
10204 });
10205 self.style = Some(style);
10206 }
10207
10208 pub fn style(&self) -> Option<&EditorStyle> {
10209 self.style.as_ref()
10210 }
10211
10212 // Called by the element. This method is not designed to be called outside of the editor
10213 // element's layout code because it does not notify when rewrapping is computed synchronously.
10214 pub(crate) fn set_wrap_width(&self, width: Option<Pixels>, cx: &mut AppContext) -> bool {
10215 self.display_map
10216 .update(cx, |map, cx| map.set_wrap_width(width, cx))
10217 }
10218
10219 pub fn toggle_soft_wrap(&mut self, _: &ToggleSoftWrap, cx: &mut ViewContext<Self>) {
10220 if self.soft_wrap_mode_override.is_some() {
10221 self.soft_wrap_mode_override.take();
10222 } else {
10223 let soft_wrap = match self.soft_wrap_mode(cx) {
10224 SoftWrap::None | SoftWrap::PreferLine => language_settings::SoftWrap::EditorWidth,
10225 SoftWrap::EditorWidth | SoftWrap::Column(_) => {
10226 language_settings::SoftWrap::PreferLine
10227 }
10228 };
10229 self.soft_wrap_mode_override = Some(soft_wrap);
10230 }
10231 cx.notify();
10232 }
10233
10234 pub fn toggle_tab_bar(&mut self, _: &ToggleTabBar, cx: &mut ViewContext<Self>) {
10235 let Some(workspace) = self.workspace() else {
10236 return;
10237 };
10238 let fs = workspace.read(cx).app_state().fs.clone();
10239 let current_show = TabBarSettings::get_global(cx).show;
10240 update_settings_file::<TabBarSettings>(fs, cx, move |setting| {
10241 setting.show = Some(!current_show);
10242 });
10243 }
10244
10245 pub fn toggle_indent_guides(&mut self, _: &ToggleIndentGuides, cx: &mut ViewContext<Self>) {
10246 let currently_enabled = self.should_show_indent_guides().unwrap_or_else(|| {
10247 self.buffer
10248 .read(cx)
10249 .settings_at(0, cx)
10250 .indent_guides
10251 .enabled
10252 });
10253 self.show_indent_guides = Some(!currently_enabled);
10254 cx.notify();
10255 }
10256
10257 fn should_show_indent_guides(&self) -> Option<bool> {
10258 self.show_indent_guides
10259 }
10260
10261 pub fn toggle_line_numbers(&mut self, _: &ToggleLineNumbers, cx: &mut ViewContext<Self>) {
10262 let mut editor_settings = EditorSettings::get_global(cx).clone();
10263 editor_settings.gutter.line_numbers = !editor_settings.gutter.line_numbers;
10264 EditorSettings::override_global(editor_settings, cx);
10265 }
10266
10267 pub fn set_show_gutter(&mut self, show_gutter: bool, cx: &mut ViewContext<Self>) {
10268 self.show_gutter = show_gutter;
10269 cx.notify();
10270 }
10271
10272 pub fn set_show_line_numbers(&mut self, show_line_numbers: bool, cx: &mut ViewContext<Self>) {
10273 self.show_line_numbers = Some(show_line_numbers);
10274 cx.notify();
10275 }
10276
10277 pub fn set_show_git_diff_gutter(
10278 &mut self,
10279 show_git_diff_gutter: bool,
10280 cx: &mut ViewContext<Self>,
10281 ) {
10282 self.show_git_diff_gutter = Some(show_git_diff_gutter);
10283 cx.notify();
10284 }
10285
10286 pub fn set_show_code_actions(&mut self, show_code_actions: bool, cx: &mut ViewContext<Self>) {
10287 self.show_code_actions = Some(show_code_actions);
10288 cx.notify();
10289 }
10290
10291 pub fn set_show_runnables(&mut self, show_runnables: bool, cx: &mut ViewContext<Self>) {
10292 self.show_runnables = Some(show_runnables);
10293 cx.notify();
10294 }
10295
10296 pub fn set_show_wrap_guides(&mut self, show_wrap_guides: bool, cx: &mut ViewContext<Self>) {
10297 self.show_wrap_guides = Some(show_wrap_guides);
10298 cx.notify();
10299 }
10300
10301 pub fn set_show_indent_guides(&mut self, show_indent_guides: bool, cx: &mut ViewContext<Self>) {
10302 self.show_indent_guides = Some(show_indent_guides);
10303 cx.notify();
10304 }
10305
10306 pub fn reveal_in_finder(&mut self, _: &RevealInFinder, cx: &mut ViewContext<Self>) {
10307 if let Some(buffer) = self.buffer().read(cx).as_singleton() {
10308 if let Some(file) = buffer.read(cx).file().and_then(|f| f.as_local()) {
10309 cx.reveal_path(&file.abs_path(cx));
10310 }
10311 }
10312 }
10313
10314 pub fn copy_path(&mut self, _: &CopyPath, cx: &mut ViewContext<Self>) {
10315 if let Some(buffer) = self.buffer().read(cx).as_singleton() {
10316 if let Some(file) = buffer.read(cx).file().and_then(|f| f.as_local()) {
10317 if let Some(path) = file.abs_path(cx).to_str() {
10318 cx.write_to_clipboard(ClipboardItem::new(path.to_string()));
10319 }
10320 }
10321 }
10322 }
10323
10324 pub fn copy_relative_path(&mut self, _: &CopyRelativePath, cx: &mut ViewContext<Self>) {
10325 if let Some(buffer) = self.buffer().read(cx).as_singleton() {
10326 if let Some(file) = buffer.read(cx).file().and_then(|f| f.as_local()) {
10327 if let Some(path) = file.path().to_str() {
10328 cx.write_to_clipboard(ClipboardItem::new(path.to_string()));
10329 }
10330 }
10331 }
10332 }
10333
10334 pub fn toggle_git_blame(&mut self, _: &ToggleGitBlame, cx: &mut ViewContext<Self>) {
10335 self.show_git_blame_gutter = !self.show_git_blame_gutter;
10336
10337 if self.show_git_blame_gutter && !self.has_blame_entries(cx) {
10338 self.start_git_blame(true, cx);
10339 }
10340
10341 cx.notify();
10342 }
10343
10344 pub fn toggle_git_blame_inline(
10345 &mut self,
10346 _: &ToggleGitBlameInline,
10347 cx: &mut ViewContext<Self>,
10348 ) {
10349 self.toggle_git_blame_inline_internal(true, cx);
10350 cx.notify();
10351 }
10352
10353 pub fn git_blame_inline_enabled(&self) -> bool {
10354 self.git_blame_inline_enabled
10355 }
10356
10357 pub fn toggle_selection_menu(&mut self, _: &ToggleSelectionMenu, cx: &mut ViewContext<Self>) {
10358 self.show_selection_menu = self
10359 .show_selection_menu
10360 .map(|show_selections_menu| !show_selections_menu)
10361 .or_else(|| Some(!EditorSettings::get_global(cx).toolbar.selections_menu));
10362
10363 cx.notify();
10364 }
10365
10366 pub fn selection_menu_enabled(&self, cx: &AppContext) -> bool {
10367 self.show_selection_menu
10368 .unwrap_or_else(|| EditorSettings::get_global(cx).toolbar.selections_menu)
10369 }
10370
10371 fn start_git_blame(&mut self, user_triggered: bool, cx: &mut ViewContext<Self>) {
10372 if let Some(project) = self.project.as_ref() {
10373 let Some(buffer) = self.buffer().read(cx).as_singleton() else {
10374 return;
10375 };
10376
10377 if buffer.read(cx).file().is_none() {
10378 return;
10379 }
10380
10381 let focused = self.focus_handle(cx).contains_focused(cx);
10382
10383 let project = project.clone();
10384 let blame =
10385 cx.new_model(|cx| GitBlame::new(buffer, project, user_triggered, focused, cx));
10386 self.blame_subscription = Some(cx.observe(&blame, |_, _, cx| cx.notify()));
10387 self.blame = Some(blame);
10388 }
10389 }
10390
10391 fn toggle_git_blame_inline_internal(
10392 &mut self,
10393 user_triggered: bool,
10394 cx: &mut ViewContext<Self>,
10395 ) {
10396 if self.git_blame_inline_enabled {
10397 self.git_blame_inline_enabled = false;
10398 self.show_git_blame_inline = false;
10399 self.show_git_blame_inline_delay_task.take();
10400 } else {
10401 self.git_blame_inline_enabled = true;
10402 self.start_git_blame_inline(user_triggered, cx);
10403 }
10404
10405 cx.notify();
10406 }
10407
10408 fn start_git_blame_inline(&mut self, user_triggered: bool, cx: &mut ViewContext<Self>) {
10409 self.start_git_blame(user_triggered, cx);
10410
10411 if ProjectSettings::get_global(cx)
10412 .git
10413 .inline_blame_delay()
10414 .is_some()
10415 {
10416 self.start_inline_blame_timer(cx);
10417 } else {
10418 self.show_git_blame_inline = true
10419 }
10420 }
10421
10422 pub fn blame(&self) -> Option<&Model<GitBlame>> {
10423 self.blame.as_ref()
10424 }
10425
10426 pub fn render_git_blame_gutter(&mut self, cx: &mut WindowContext) -> bool {
10427 self.show_git_blame_gutter && self.has_blame_entries(cx)
10428 }
10429
10430 pub fn render_git_blame_inline(&mut self, cx: &mut WindowContext) -> bool {
10431 self.show_git_blame_inline
10432 && self.focus_handle.is_focused(cx)
10433 && !self.newest_selection_head_on_empty_line(cx)
10434 && self.has_blame_entries(cx)
10435 }
10436
10437 fn has_blame_entries(&self, cx: &mut WindowContext) -> bool {
10438 self.blame()
10439 .map_or(false, |blame| blame.read(cx).has_generated_entries())
10440 }
10441
10442 fn newest_selection_head_on_empty_line(&mut self, cx: &mut WindowContext) -> bool {
10443 let cursor_anchor = self.selections.newest_anchor().head();
10444
10445 let snapshot = self.buffer.read(cx).snapshot(cx);
10446 let buffer_row = MultiBufferRow(cursor_anchor.to_point(&snapshot).row);
10447
10448 snapshot.line_len(buffer_row) == 0
10449 }
10450
10451 fn get_permalink_to_line(&mut self, cx: &mut ViewContext<Self>) -> Result<url::Url> {
10452 let (path, selection, repo) = maybe!({
10453 let project_handle = self.project.as_ref()?.clone();
10454 let project = project_handle.read(cx);
10455
10456 let selection = self.selections.newest::<Point>(cx);
10457 let selection_range = selection.range();
10458
10459 let (buffer, selection) = if let Some(buffer) = self.buffer().read(cx).as_singleton() {
10460 (buffer, selection_range.start.row..selection_range.end.row)
10461 } else {
10462 let buffer_ranges = self
10463 .buffer()
10464 .read(cx)
10465 .range_to_buffer_ranges(selection_range, cx);
10466
10467 let (buffer, range, _) = if selection.reversed {
10468 buffer_ranges.first()
10469 } else {
10470 buffer_ranges.last()
10471 }?;
10472
10473 let snapshot = buffer.read(cx).snapshot();
10474 let selection = text::ToPoint::to_point(&range.start, &snapshot).row
10475 ..text::ToPoint::to_point(&range.end, &snapshot).row;
10476 (buffer.clone(), selection)
10477 };
10478
10479 let path = buffer
10480 .read(cx)
10481 .file()?
10482 .as_local()?
10483 .path()
10484 .to_str()?
10485 .to_string();
10486 let repo = project.get_repo(&buffer.read(cx).project_path(cx)?, cx)?;
10487 Some((path, selection, repo))
10488 })
10489 .ok_or_else(|| anyhow!("unable to open git repository"))?;
10490
10491 const REMOTE_NAME: &str = "origin";
10492 let origin_url = repo
10493 .remote_url(REMOTE_NAME)
10494 .ok_or_else(|| anyhow!("remote \"{REMOTE_NAME}\" not found"))?;
10495 let sha = repo
10496 .head_sha()
10497 .ok_or_else(|| anyhow!("failed to read HEAD SHA"))?;
10498
10499 let (provider, remote) =
10500 parse_git_remote_url(GitHostingProviderRegistry::default_global(cx), &origin_url)
10501 .ok_or_else(|| anyhow!("failed to parse Git remote URL"))?;
10502
10503 Ok(provider.build_permalink(
10504 remote,
10505 BuildPermalinkParams {
10506 sha: &sha,
10507 path: &path,
10508 selection: Some(selection),
10509 },
10510 ))
10511 }
10512
10513 pub fn copy_permalink_to_line(&mut self, _: &CopyPermalinkToLine, cx: &mut ViewContext<Self>) {
10514 let permalink = self.get_permalink_to_line(cx);
10515
10516 match permalink {
10517 Ok(permalink) => {
10518 cx.write_to_clipboard(ClipboardItem::new(permalink.to_string()));
10519 }
10520 Err(err) => {
10521 let message = format!("Failed to copy permalink: {err}");
10522
10523 Err::<(), anyhow::Error>(err).log_err();
10524
10525 if let Some(workspace) = self.workspace() {
10526 workspace.update(cx, |workspace, cx| {
10527 struct CopyPermalinkToLine;
10528
10529 workspace.show_toast(
10530 Toast::new(NotificationId::unique::<CopyPermalinkToLine>(), message),
10531 cx,
10532 )
10533 })
10534 }
10535 }
10536 }
10537 }
10538
10539 pub fn open_permalink_to_line(&mut self, _: &OpenPermalinkToLine, cx: &mut ViewContext<Self>) {
10540 let permalink = self.get_permalink_to_line(cx);
10541
10542 match permalink {
10543 Ok(permalink) => {
10544 cx.open_url(permalink.as_ref());
10545 }
10546 Err(err) => {
10547 let message = format!("Failed to open permalink: {err}");
10548
10549 Err::<(), anyhow::Error>(err).log_err();
10550
10551 if let Some(workspace) = self.workspace() {
10552 workspace.update(cx, |workspace, cx| {
10553 struct OpenPermalinkToLine;
10554
10555 workspace.show_toast(
10556 Toast::new(NotificationId::unique::<OpenPermalinkToLine>(), message),
10557 cx,
10558 )
10559 })
10560 }
10561 }
10562 }
10563 }
10564
10565 /// Adds or removes (on `None` color) a highlight for the rows corresponding to the anchor range given.
10566 /// On matching anchor range, replaces the old highlight; does not clear the other existing highlights.
10567 /// If multiple anchor ranges will produce highlights for the same row, the last range added will be used.
10568 pub fn highlight_rows<T: 'static>(
10569 &mut self,
10570 rows: RangeInclusive<Anchor>,
10571 color: Option<Hsla>,
10572 should_autoscroll: bool,
10573 cx: &mut ViewContext<Self>,
10574 ) {
10575 let snapshot = self.buffer().read(cx).snapshot(cx);
10576 let row_highlights = self.highlighted_rows.entry(TypeId::of::<T>()).or_default();
10577 let existing_highlight_index = row_highlights.binary_search_by(|highlight| {
10578 highlight
10579 .range
10580 .start()
10581 .cmp(&rows.start(), &snapshot)
10582 .then(highlight.range.end().cmp(&rows.end(), &snapshot))
10583 });
10584 match (color, existing_highlight_index) {
10585 (Some(_), Ok(ix)) | (_, Err(ix)) => row_highlights.insert(
10586 ix,
10587 RowHighlight {
10588 index: post_inc(&mut self.highlight_order),
10589 range: rows,
10590 should_autoscroll,
10591 color,
10592 },
10593 ),
10594 (None, Ok(i)) => {
10595 row_highlights.remove(i);
10596 }
10597 }
10598 }
10599
10600 /// Clear all anchor ranges for a certain highlight context type, so no corresponding rows will be highlighted.
10601 pub fn clear_row_highlights<T: 'static>(&mut self) {
10602 self.highlighted_rows.remove(&TypeId::of::<T>());
10603 }
10604
10605 /// For a highlight given context type, gets all anchor ranges that will be used for row highlighting.
10606 pub fn highlighted_rows<T: 'static>(
10607 &self,
10608 ) -> Option<impl Iterator<Item = (&RangeInclusive<Anchor>, Option<&Hsla>)>> {
10609 Some(
10610 self.highlighted_rows
10611 .get(&TypeId::of::<T>())?
10612 .iter()
10613 .map(|highlight| (&highlight.range, highlight.color.as_ref())),
10614 )
10615 }
10616
10617 /// Merges all anchor ranges for all context types ever set, picking the last highlight added in case of a row conflict.
10618 /// Rerturns a map of display rows that are highlighted and their corresponding highlight color.
10619 /// Allows to ignore certain kinds of highlights.
10620 pub fn highlighted_display_rows(
10621 &mut self,
10622 cx: &mut WindowContext,
10623 ) -> BTreeMap<DisplayRow, Hsla> {
10624 let snapshot = self.snapshot(cx);
10625 let mut used_highlight_orders = HashMap::default();
10626 self.highlighted_rows
10627 .iter()
10628 .flat_map(|(_, highlighted_rows)| highlighted_rows.iter())
10629 .fold(
10630 BTreeMap::<DisplayRow, Hsla>::new(),
10631 |mut unique_rows, highlight| {
10632 let start_row = highlight.range.start().to_display_point(&snapshot).row();
10633 let end_row = highlight.range.end().to_display_point(&snapshot).row();
10634 for row in start_row.0..=end_row.0 {
10635 let used_index =
10636 used_highlight_orders.entry(row).or_insert(highlight.index);
10637 if highlight.index >= *used_index {
10638 *used_index = highlight.index;
10639 match highlight.color {
10640 Some(hsla) => unique_rows.insert(DisplayRow(row), hsla),
10641 None => unique_rows.remove(&DisplayRow(row)),
10642 };
10643 }
10644 }
10645 unique_rows
10646 },
10647 )
10648 }
10649
10650 pub fn highlighted_display_row_for_autoscroll(
10651 &self,
10652 snapshot: &DisplaySnapshot,
10653 ) -> Option<DisplayRow> {
10654 self.highlighted_rows
10655 .values()
10656 .flat_map(|highlighted_rows| highlighted_rows.iter())
10657 .filter_map(|highlight| {
10658 if highlight.color.is_none() || !highlight.should_autoscroll {
10659 return None;
10660 }
10661 Some(highlight.range.start().to_display_point(&snapshot).row())
10662 })
10663 .min()
10664 }
10665
10666 pub fn set_search_within_ranges(
10667 &mut self,
10668 ranges: &[Range<Anchor>],
10669 cx: &mut ViewContext<Self>,
10670 ) {
10671 self.highlight_background::<SearchWithinRange>(
10672 ranges,
10673 |colors| colors.editor_document_highlight_read_background,
10674 cx,
10675 )
10676 }
10677
10678 pub fn set_breadcrumb_header(&mut self, new_header: String) {
10679 self.breadcrumb_header = Some(new_header);
10680 }
10681
10682 pub fn clear_search_within_ranges(&mut self, cx: &mut ViewContext<Self>) {
10683 self.clear_background_highlights::<SearchWithinRange>(cx);
10684 }
10685
10686 pub fn highlight_background<T: 'static>(
10687 &mut self,
10688 ranges: &[Range<Anchor>],
10689 color_fetcher: fn(&ThemeColors) -> Hsla,
10690 cx: &mut ViewContext<Self>,
10691 ) {
10692 let snapshot = self.snapshot(cx);
10693 // this is to try and catch a panic sooner
10694 for range in ranges {
10695 snapshot
10696 .buffer_snapshot
10697 .summary_for_anchor::<usize>(&range.start);
10698 snapshot
10699 .buffer_snapshot
10700 .summary_for_anchor::<usize>(&range.end);
10701 }
10702
10703 self.background_highlights
10704 .insert(TypeId::of::<T>(), (color_fetcher, Arc::from(ranges)));
10705 self.scrollbar_marker_state.dirty = true;
10706 cx.notify();
10707 }
10708
10709 pub fn clear_background_highlights<T: 'static>(
10710 &mut self,
10711 cx: &mut ViewContext<Self>,
10712 ) -> Option<BackgroundHighlight> {
10713 let text_highlights = self.background_highlights.remove(&TypeId::of::<T>())?;
10714 if !text_highlights.1.is_empty() {
10715 self.scrollbar_marker_state.dirty = true;
10716 cx.notify();
10717 }
10718 Some(text_highlights)
10719 }
10720
10721 pub fn highlight_gutter<T: 'static>(
10722 &mut self,
10723 ranges: &[Range<Anchor>],
10724 color_fetcher: fn(&AppContext) -> Hsla,
10725 cx: &mut ViewContext<Self>,
10726 ) {
10727 self.gutter_highlights
10728 .insert(TypeId::of::<T>(), (color_fetcher, Arc::from(ranges)));
10729 cx.notify();
10730 }
10731
10732 pub fn clear_gutter_highlights<T: 'static>(
10733 &mut self,
10734 cx: &mut ViewContext<Self>,
10735 ) -> Option<GutterHighlight> {
10736 cx.notify();
10737 self.gutter_highlights.remove(&TypeId::of::<T>())
10738 }
10739
10740 #[cfg(feature = "test-support")]
10741 pub fn all_text_background_highlights(
10742 &mut self,
10743 cx: &mut ViewContext<Self>,
10744 ) -> Vec<(Range<DisplayPoint>, Hsla)> {
10745 let snapshot = self.snapshot(cx);
10746 let buffer = &snapshot.buffer_snapshot;
10747 let start = buffer.anchor_before(0);
10748 let end = buffer.anchor_after(buffer.len());
10749 let theme = cx.theme().colors();
10750 self.background_highlights_in_range(start..end, &snapshot, theme)
10751 }
10752
10753 #[cfg(feature = "test-support")]
10754 pub fn search_background_highlights(
10755 &mut self,
10756 cx: &mut ViewContext<Self>,
10757 ) -> Vec<Range<Point>> {
10758 let snapshot = self.buffer().read(cx).snapshot(cx);
10759
10760 let highlights = self
10761 .background_highlights
10762 .get(&TypeId::of::<items::BufferSearchHighlights>());
10763
10764 if let Some((_color, ranges)) = highlights {
10765 ranges
10766 .iter()
10767 .map(|range| range.start.to_point(&snapshot)..range.end.to_point(&snapshot))
10768 .collect_vec()
10769 } else {
10770 vec![]
10771 }
10772 }
10773
10774 fn document_highlights_for_position<'a>(
10775 &'a self,
10776 position: Anchor,
10777 buffer: &'a MultiBufferSnapshot,
10778 ) -> impl 'a + Iterator<Item = &Range<Anchor>> {
10779 let read_highlights = self
10780 .background_highlights
10781 .get(&TypeId::of::<DocumentHighlightRead>())
10782 .map(|h| &h.1);
10783 let write_highlights = self
10784 .background_highlights
10785 .get(&TypeId::of::<DocumentHighlightWrite>())
10786 .map(|h| &h.1);
10787 let left_position = position.bias_left(buffer);
10788 let right_position = position.bias_right(buffer);
10789 read_highlights
10790 .into_iter()
10791 .chain(write_highlights)
10792 .flat_map(move |ranges| {
10793 let start_ix = match ranges.binary_search_by(|probe| {
10794 let cmp = probe.end.cmp(&left_position, buffer);
10795 if cmp.is_ge() {
10796 Ordering::Greater
10797 } else {
10798 Ordering::Less
10799 }
10800 }) {
10801 Ok(i) | Err(i) => i,
10802 };
10803
10804 ranges[start_ix..]
10805 .iter()
10806 .take_while(move |range| range.start.cmp(&right_position, buffer).is_le())
10807 })
10808 }
10809
10810 pub fn has_background_highlights<T: 'static>(&self) -> bool {
10811 self.background_highlights
10812 .get(&TypeId::of::<T>())
10813 .map_or(false, |(_, highlights)| !highlights.is_empty())
10814 }
10815
10816 pub fn background_highlights_in_range(
10817 &self,
10818 search_range: Range<Anchor>,
10819 display_snapshot: &DisplaySnapshot,
10820 theme: &ThemeColors,
10821 ) -> Vec<(Range<DisplayPoint>, Hsla)> {
10822 let mut results = Vec::new();
10823 for (color_fetcher, ranges) in self.background_highlights.values() {
10824 let color = color_fetcher(theme);
10825 let start_ix = match ranges.binary_search_by(|probe| {
10826 let cmp = probe
10827 .end
10828 .cmp(&search_range.start, &display_snapshot.buffer_snapshot);
10829 if cmp.is_gt() {
10830 Ordering::Greater
10831 } else {
10832 Ordering::Less
10833 }
10834 }) {
10835 Ok(i) | Err(i) => i,
10836 };
10837 for range in &ranges[start_ix..] {
10838 if range
10839 .start
10840 .cmp(&search_range.end, &display_snapshot.buffer_snapshot)
10841 .is_ge()
10842 {
10843 break;
10844 }
10845
10846 let start = range.start.to_display_point(&display_snapshot);
10847 let end = range.end.to_display_point(&display_snapshot);
10848 results.push((start..end, color))
10849 }
10850 }
10851 results
10852 }
10853
10854 pub fn background_highlight_row_ranges<T: 'static>(
10855 &self,
10856 search_range: Range<Anchor>,
10857 display_snapshot: &DisplaySnapshot,
10858 count: usize,
10859 ) -> Vec<RangeInclusive<DisplayPoint>> {
10860 let mut results = Vec::new();
10861 let Some((_, ranges)) = self.background_highlights.get(&TypeId::of::<T>()) else {
10862 return vec![];
10863 };
10864
10865 let start_ix = match ranges.binary_search_by(|probe| {
10866 let cmp = probe
10867 .end
10868 .cmp(&search_range.start, &display_snapshot.buffer_snapshot);
10869 if cmp.is_gt() {
10870 Ordering::Greater
10871 } else {
10872 Ordering::Less
10873 }
10874 }) {
10875 Ok(i) | Err(i) => i,
10876 };
10877 let mut push_region = |start: Option<Point>, end: Option<Point>| {
10878 if let (Some(start_display), Some(end_display)) = (start, end) {
10879 results.push(
10880 start_display.to_display_point(display_snapshot)
10881 ..=end_display.to_display_point(display_snapshot),
10882 );
10883 }
10884 };
10885 let mut start_row: Option<Point> = None;
10886 let mut end_row: Option<Point> = None;
10887 if ranges.len() > count {
10888 return Vec::new();
10889 }
10890 for range in &ranges[start_ix..] {
10891 if range
10892 .start
10893 .cmp(&search_range.end, &display_snapshot.buffer_snapshot)
10894 .is_ge()
10895 {
10896 break;
10897 }
10898 let end = range.end.to_point(&display_snapshot.buffer_snapshot);
10899 if let Some(current_row) = &end_row {
10900 if end.row == current_row.row {
10901 continue;
10902 }
10903 }
10904 let start = range.start.to_point(&display_snapshot.buffer_snapshot);
10905 if start_row.is_none() {
10906 assert_eq!(end_row, None);
10907 start_row = Some(start);
10908 end_row = Some(end);
10909 continue;
10910 }
10911 if let Some(current_end) = end_row.as_mut() {
10912 if start.row > current_end.row + 1 {
10913 push_region(start_row, end_row);
10914 start_row = Some(start);
10915 end_row = Some(end);
10916 } else {
10917 // Merge two hunks.
10918 *current_end = end;
10919 }
10920 } else {
10921 unreachable!();
10922 }
10923 }
10924 // We might still have a hunk that was not rendered (if there was a search hit on the last line)
10925 push_region(start_row, end_row);
10926 results
10927 }
10928
10929 pub fn gutter_highlights_in_range(
10930 &self,
10931 search_range: Range<Anchor>,
10932 display_snapshot: &DisplaySnapshot,
10933 cx: &AppContext,
10934 ) -> Vec<(Range<DisplayPoint>, Hsla)> {
10935 let mut results = Vec::new();
10936 for (color_fetcher, ranges) in self.gutter_highlights.values() {
10937 let color = color_fetcher(cx);
10938 let start_ix = match ranges.binary_search_by(|probe| {
10939 let cmp = probe
10940 .end
10941 .cmp(&search_range.start, &display_snapshot.buffer_snapshot);
10942 if cmp.is_gt() {
10943 Ordering::Greater
10944 } else {
10945 Ordering::Less
10946 }
10947 }) {
10948 Ok(i) | Err(i) => i,
10949 };
10950 for range in &ranges[start_ix..] {
10951 if range
10952 .start
10953 .cmp(&search_range.end, &display_snapshot.buffer_snapshot)
10954 .is_ge()
10955 {
10956 break;
10957 }
10958
10959 let start = range.start.to_display_point(&display_snapshot);
10960 let end = range.end.to_display_point(&display_snapshot);
10961 results.push((start..end, color))
10962 }
10963 }
10964 results
10965 }
10966
10967 /// Get the text ranges corresponding to the redaction query
10968 pub fn redacted_ranges(
10969 &self,
10970 search_range: Range<Anchor>,
10971 display_snapshot: &DisplaySnapshot,
10972 cx: &WindowContext,
10973 ) -> Vec<Range<DisplayPoint>> {
10974 display_snapshot
10975 .buffer_snapshot
10976 .redacted_ranges(search_range, |file| {
10977 if let Some(file) = file {
10978 file.is_private()
10979 && EditorSettings::get(Some(file.as_ref().into()), cx).redact_private_values
10980 } else {
10981 false
10982 }
10983 })
10984 .map(|range| {
10985 range.start.to_display_point(display_snapshot)
10986 ..range.end.to_display_point(display_snapshot)
10987 })
10988 .collect()
10989 }
10990
10991 pub fn highlight_text<T: 'static>(
10992 &mut self,
10993 ranges: Vec<Range<Anchor>>,
10994 style: HighlightStyle,
10995 cx: &mut ViewContext<Self>,
10996 ) {
10997 self.display_map.update(cx, |map, _| {
10998 map.highlight_text(TypeId::of::<T>(), ranges, style)
10999 });
11000 cx.notify();
11001 }
11002
11003 pub(crate) fn highlight_inlays<T: 'static>(
11004 &mut self,
11005 highlights: Vec<InlayHighlight>,
11006 style: HighlightStyle,
11007 cx: &mut ViewContext<Self>,
11008 ) {
11009 self.display_map.update(cx, |map, _| {
11010 map.highlight_inlays(TypeId::of::<T>(), highlights, style)
11011 });
11012 cx.notify();
11013 }
11014
11015 pub fn text_highlights<'a, T: 'static>(
11016 &'a self,
11017 cx: &'a AppContext,
11018 ) -> Option<(HighlightStyle, &'a [Range<Anchor>])> {
11019 self.display_map.read(cx).text_highlights(TypeId::of::<T>())
11020 }
11021
11022 pub fn clear_highlights<T: 'static>(&mut self, cx: &mut ViewContext<Self>) {
11023 let cleared = self
11024 .display_map
11025 .update(cx, |map, _| map.clear_highlights(TypeId::of::<T>()));
11026 if cleared {
11027 cx.notify();
11028 }
11029 }
11030
11031 pub fn show_local_cursors(&self, cx: &WindowContext) -> bool {
11032 (self.read_only(cx) || self.blink_manager.read(cx).visible())
11033 && self.focus_handle.is_focused(cx)
11034 }
11035
11036 pub fn set_show_cursor_when_unfocused(&mut self, is_enabled: bool, cx: &mut ViewContext<Self>) {
11037 self.show_cursor_when_unfocused = is_enabled;
11038 cx.notify();
11039 }
11040
11041 fn on_buffer_changed(&mut self, _: Model<MultiBuffer>, cx: &mut ViewContext<Self>) {
11042 cx.notify();
11043 }
11044
11045 fn on_buffer_event(
11046 &mut self,
11047 multibuffer: Model<MultiBuffer>,
11048 event: &multi_buffer::Event,
11049 cx: &mut ViewContext<Self>,
11050 ) {
11051 match event {
11052 multi_buffer::Event::Edited {
11053 singleton_buffer_edited,
11054 } => {
11055 self.scrollbar_marker_state.dirty = true;
11056 self.active_indent_guides_state.dirty = true;
11057 self.refresh_active_diagnostics(cx);
11058 self.refresh_code_actions(cx);
11059 if self.has_active_inline_completion(cx) {
11060 self.update_visible_inline_completion(cx);
11061 }
11062 cx.emit(EditorEvent::BufferEdited);
11063 cx.emit(SearchEvent::MatchesInvalidated);
11064 if *singleton_buffer_edited {
11065 if let Some(project) = &self.project {
11066 let project = project.read(cx);
11067 let languages_affected = multibuffer
11068 .read(cx)
11069 .all_buffers()
11070 .into_iter()
11071 .filter_map(|buffer| {
11072 let buffer = buffer.read(cx);
11073 let language = buffer.language()?;
11074 if project.is_local()
11075 && project.language_servers_for_buffer(buffer, cx).count() == 0
11076 {
11077 None
11078 } else {
11079 Some(language)
11080 }
11081 })
11082 .cloned()
11083 .collect::<HashSet<_>>();
11084 if !languages_affected.is_empty() {
11085 self.refresh_inlay_hints(
11086 InlayHintRefreshReason::BufferEdited(languages_affected),
11087 cx,
11088 );
11089 }
11090 }
11091 }
11092
11093 let Some(project) = &self.project else { return };
11094 let telemetry = project.read(cx).client().telemetry().clone();
11095 refresh_linked_ranges(self, cx);
11096 telemetry.log_edit_event("editor");
11097 }
11098 multi_buffer::Event::ExcerptsAdded {
11099 buffer,
11100 predecessor,
11101 excerpts,
11102 } => {
11103 self.tasks_update_task = Some(self.refresh_runnables(cx));
11104 cx.emit(EditorEvent::ExcerptsAdded {
11105 buffer: buffer.clone(),
11106 predecessor: *predecessor,
11107 excerpts: excerpts.clone(),
11108 });
11109 self.refresh_inlay_hints(InlayHintRefreshReason::NewLinesShown, cx);
11110 }
11111 multi_buffer::Event::ExcerptsRemoved { ids } => {
11112 self.refresh_inlay_hints(InlayHintRefreshReason::ExcerptsRemoved(ids.clone()), cx);
11113 cx.emit(EditorEvent::ExcerptsRemoved { ids: ids.clone() })
11114 }
11115 multi_buffer::Event::ExcerptsEdited { ids } => {
11116 cx.emit(EditorEvent::ExcerptsEdited { ids: ids.clone() })
11117 }
11118 multi_buffer::Event::ExcerptsExpanded { ids } => {
11119 cx.emit(EditorEvent::ExcerptsExpanded { ids: ids.clone() })
11120 }
11121 multi_buffer::Event::Reparsed(buffer_id) => {
11122 self.tasks_update_task = Some(self.refresh_runnables(cx));
11123
11124 cx.emit(EditorEvent::Reparsed(*buffer_id));
11125 }
11126 multi_buffer::Event::LanguageChanged(buffer_id) => {
11127 linked_editing_ranges::refresh_linked_ranges(self, cx);
11128 cx.emit(EditorEvent::Reparsed(*buffer_id));
11129 cx.notify();
11130 }
11131 multi_buffer::Event::DirtyChanged => cx.emit(EditorEvent::DirtyChanged),
11132 multi_buffer::Event::Saved => cx.emit(EditorEvent::Saved),
11133 multi_buffer::Event::FileHandleChanged | multi_buffer::Event::Reloaded => {
11134 cx.emit(EditorEvent::TitleChanged)
11135 }
11136 multi_buffer::Event::DiffBaseChanged => {
11137 self.scrollbar_marker_state.dirty = true;
11138 cx.emit(EditorEvent::DiffBaseChanged);
11139 cx.notify();
11140 }
11141 multi_buffer::Event::DiffUpdated { buffer } => {
11142 self.sync_expanded_diff_hunks(buffer.clone(), cx);
11143 cx.notify();
11144 }
11145 multi_buffer::Event::Closed => cx.emit(EditorEvent::Closed),
11146 multi_buffer::Event::DiagnosticsUpdated => {
11147 self.refresh_active_diagnostics(cx);
11148 self.scrollbar_marker_state.dirty = true;
11149 cx.notify();
11150 }
11151 _ => {}
11152 };
11153 }
11154
11155 fn on_display_map_changed(&mut self, _: Model<DisplayMap>, cx: &mut ViewContext<Self>) {
11156 cx.notify();
11157 }
11158
11159 fn settings_changed(&mut self, cx: &mut ViewContext<Self>) {
11160 self.tasks_update_task = Some(self.refresh_runnables(cx));
11161 self.refresh_inline_completion(true, cx);
11162 self.refresh_inlay_hints(
11163 InlayHintRefreshReason::SettingsChange(inlay_hint_settings(
11164 self.selections.newest_anchor().head(),
11165 &self.buffer.read(cx).snapshot(cx),
11166 cx,
11167 )),
11168 cx,
11169 );
11170 let editor_settings = EditorSettings::get_global(cx);
11171 self.scroll_manager.vertical_scroll_margin = editor_settings.vertical_scroll_margin;
11172 self.show_breadcrumbs = editor_settings.toolbar.breadcrumbs;
11173
11174 if self.mode == EditorMode::Full {
11175 let inline_blame_enabled = ProjectSettings::get_global(cx).git.inline_blame_enabled();
11176 if self.git_blame_inline_enabled != inline_blame_enabled {
11177 self.toggle_git_blame_inline_internal(false, cx);
11178 }
11179 }
11180
11181 cx.notify();
11182 }
11183
11184 pub fn set_searchable(&mut self, searchable: bool) {
11185 self.searchable = searchable;
11186 }
11187
11188 pub fn searchable(&self) -> bool {
11189 self.searchable
11190 }
11191
11192 fn open_excerpts_in_split(&mut self, _: &OpenExcerptsSplit, cx: &mut ViewContext<Self>) {
11193 self.open_excerpts_common(true, cx)
11194 }
11195
11196 fn open_excerpts(&mut self, _: &OpenExcerpts, cx: &mut ViewContext<Self>) {
11197 self.open_excerpts_common(false, cx)
11198 }
11199
11200 fn open_excerpts_common(&mut self, split: bool, cx: &mut ViewContext<Self>) {
11201 let buffer = self.buffer.read(cx);
11202 if buffer.is_singleton() {
11203 cx.propagate();
11204 return;
11205 }
11206
11207 let Some(workspace) = self.workspace() else {
11208 cx.propagate();
11209 return;
11210 };
11211
11212 let mut new_selections_by_buffer = HashMap::default();
11213 for selection in self.selections.all::<usize>(cx) {
11214 for (buffer, mut range, _) in
11215 buffer.range_to_buffer_ranges(selection.start..selection.end, cx)
11216 {
11217 if selection.reversed {
11218 mem::swap(&mut range.start, &mut range.end);
11219 }
11220 new_selections_by_buffer
11221 .entry(buffer)
11222 .or_insert(Vec::new())
11223 .push(range)
11224 }
11225 }
11226
11227 // We defer the pane interaction because we ourselves are a workspace item
11228 // and activating a new item causes the pane to call a method on us reentrantly,
11229 // which panics if we're on the stack.
11230 cx.window_context().defer(move |cx| {
11231 workspace.update(cx, |workspace, cx| {
11232 let pane = if split {
11233 workspace.adjacent_pane(cx)
11234 } else {
11235 workspace.active_pane().clone()
11236 };
11237
11238 for (buffer, ranges) in new_selections_by_buffer {
11239 let editor = workspace.open_project_item::<Self>(pane.clone(), buffer, cx);
11240 editor.update(cx, |editor, cx| {
11241 editor.change_selections(Some(Autoscroll::newest()), cx, |s| {
11242 s.select_ranges(ranges);
11243 });
11244 });
11245 }
11246 })
11247 });
11248 }
11249
11250 fn jump(
11251 &mut self,
11252 path: ProjectPath,
11253 position: Point,
11254 anchor: language::Anchor,
11255 offset_from_top: u32,
11256 cx: &mut ViewContext<Self>,
11257 ) {
11258 let workspace = self.workspace();
11259 cx.spawn(|_, mut cx| async move {
11260 let workspace = workspace.ok_or_else(|| anyhow!("cannot jump without workspace"))?;
11261 let editor = workspace.update(&mut cx, |workspace, cx| {
11262 // Reset the preview item id before opening the new item
11263 workspace.active_pane().update(cx, |pane, cx| {
11264 pane.set_preview_item_id(None, cx);
11265 });
11266 workspace.open_path_preview(path, None, true, true, cx)
11267 })?;
11268 let editor = editor
11269 .await?
11270 .downcast::<Editor>()
11271 .ok_or_else(|| anyhow!("opened item was not an editor"))?
11272 .downgrade();
11273 editor.update(&mut cx, |editor, cx| {
11274 let buffer = editor
11275 .buffer()
11276 .read(cx)
11277 .as_singleton()
11278 .ok_or_else(|| anyhow!("cannot jump in a multi-buffer"))?;
11279 let buffer = buffer.read(cx);
11280 let cursor = if buffer.can_resolve(&anchor) {
11281 language::ToPoint::to_point(&anchor, buffer)
11282 } else {
11283 buffer.clip_point(position, Bias::Left)
11284 };
11285
11286 let nav_history = editor.nav_history.take();
11287 editor.change_selections(
11288 Some(Autoscroll::top_relative(offset_from_top as usize)),
11289 cx,
11290 |s| {
11291 s.select_ranges([cursor..cursor]);
11292 },
11293 );
11294 editor.nav_history = nav_history;
11295
11296 anyhow::Ok(())
11297 })??;
11298
11299 anyhow::Ok(())
11300 })
11301 .detach_and_log_err(cx);
11302 }
11303
11304 fn marked_text_ranges(&self, cx: &AppContext) -> Option<Vec<Range<OffsetUtf16>>> {
11305 let snapshot = self.buffer.read(cx).read(cx);
11306 let (_, ranges) = self.text_highlights::<InputComposition>(cx)?;
11307 Some(
11308 ranges
11309 .iter()
11310 .map(move |range| {
11311 range.start.to_offset_utf16(&snapshot)..range.end.to_offset_utf16(&snapshot)
11312 })
11313 .collect(),
11314 )
11315 }
11316
11317 fn selection_replacement_ranges(
11318 &self,
11319 range: Range<OffsetUtf16>,
11320 cx: &AppContext,
11321 ) -> Vec<Range<OffsetUtf16>> {
11322 let selections = self.selections.all::<OffsetUtf16>(cx);
11323 let newest_selection = selections
11324 .iter()
11325 .max_by_key(|selection| selection.id)
11326 .unwrap();
11327 let start_delta = range.start.0 as isize - newest_selection.start.0 as isize;
11328 let end_delta = range.end.0 as isize - newest_selection.end.0 as isize;
11329 let snapshot = self.buffer.read(cx).read(cx);
11330 selections
11331 .into_iter()
11332 .map(|mut selection| {
11333 selection.start.0 =
11334 (selection.start.0 as isize).saturating_add(start_delta) as usize;
11335 selection.end.0 = (selection.end.0 as isize).saturating_add(end_delta) as usize;
11336 snapshot.clip_offset_utf16(selection.start, Bias::Left)
11337 ..snapshot.clip_offset_utf16(selection.end, Bias::Right)
11338 })
11339 .collect()
11340 }
11341
11342 fn report_editor_event(
11343 &self,
11344 operation: &'static str,
11345 file_extension: Option<String>,
11346 cx: &AppContext,
11347 ) {
11348 if cfg!(any(test, feature = "test-support")) {
11349 return;
11350 }
11351
11352 let Some(project) = &self.project else { return };
11353
11354 // If None, we are in a file without an extension
11355 let file = self
11356 .buffer
11357 .read(cx)
11358 .as_singleton()
11359 .and_then(|b| b.read(cx).file());
11360 let file_extension = file_extension.or(file
11361 .as_ref()
11362 .and_then(|file| Path::new(file.file_name(cx)).extension())
11363 .and_then(|e| e.to_str())
11364 .map(|a| a.to_string()));
11365
11366 let vim_mode = cx
11367 .global::<SettingsStore>()
11368 .raw_user_settings()
11369 .get("vim_mode")
11370 == Some(&serde_json::Value::Bool(true));
11371
11372 let copilot_enabled = all_language_settings(file, cx).inline_completions.provider
11373 == language::language_settings::InlineCompletionProvider::Copilot;
11374 let copilot_enabled_for_language = self
11375 .buffer
11376 .read(cx)
11377 .settings_at(0, cx)
11378 .show_inline_completions;
11379
11380 let telemetry = project.read(cx).client().telemetry().clone();
11381 telemetry.report_editor_event(
11382 file_extension,
11383 vim_mode,
11384 operation,
11385 copilot_enabled,
11386 copilot_enabled_for_language,
11387 )
11388 }
11389
11390 /// Copy the highlighted chunks to the clipboard as JSON. The format is an array of lines,
11391 /// with each line being an array of {text, highlight} objects.
11392 fn copy_highlight_json(&mut self, _: &CopyHighlightJson, cx: &mut ViewContext<Self>) {
11393 let Some(buffer) = self.buffer.read(cx).as_singleton() else {
11394 return;
11395 };
11396
11397 #[derive(Serialize)]
11398 struct Chunk<'a> {
11399 text: String,
11400 highlight: Option<&'a str>,
11401 }
11402
11403 let snapshot = buffer.read(cx).snapshot();
11404 let range = self
11405 .selected_text_range(cx)
11406 .and_then(|selected_range| {
11407 if selected_range.is_empty() {
11408 None
11409 } else {
11410 Some(selected_range)
11411 }
11412 })
11413 .unwrap_or_else(|| 0..snapshot.len());
11414
11415 let chunks = snapshot.chunks(range, true);
11416 let mut lines = Vec::new();
11417 let mut line: VecDeque<Chunk> = VecDeque::new();
11418
11419 let Some(style) = self.style.as_ref() else {
11420 return;
11421 };
11422
11423 for chunk in chunks {
11424 let highlight = chunk
11425 .syntax_highlight_id
11426 .and_then(|id| id.name(&style.syntax));
11427 let mut chunk_lines = chunk.text.split('\n').peekable();
11428 while let Some(text) = chunk_lines.next() {
11429 let mut merged_with_last_token = false;
11430 if let Some(last_token) = line.back_mut() {
11431 if last_token.highlight == highlight {
11432 last_token.text.push_str(text);
11433 merged_with_last_token = true;
11434 }
11435 }
11436
11437 if !merged_with_last_token {
11438 line.push_back(Chunk {
11439 text: text.into(),
11440 highlight,
11441 });
11442 }
11443
11444 if chunk_lines.peek().is_some() {
11445 if line.len() > 1 && line.front().unwrap().text.is_empty() {
11446 line.pop_front();
11447 }
11448 if line.len() > 1 && line.back().unwrap().text.is_empty() {
11449 line.pop_back();
11450 }
11451
11452 lines.push(mem::take(&mut line));
11453 }
11454 }
11455 }
11456
11457 let Some(lines) = serde_json::to_string_pretty(&lines).log_err() else {
11458 return;
11459 };
11460 cx.write_to_clipboard(ClipboardItem::new(lines));
11461 }
11462
11463 pub fn inlay_hint_cache(&self) -> &InlayHintCache {
11464 &self.inlay_hint_cache
11465 }
11466
11467 pub fn replay_insert_event(
11468 &mut self,
11469 text: &str,
11470 relative_utf16_range: Option<Range<isize>>,
11471 cx: &mut ViewContext<Self>,
11472 ) {
11473 if !self.input_enabled {
11474 cx.emit(EditorEvent::InputIgnored { text: text.into() });
11475 return;
11476 }
11477 if let Some(relative_utf16_range) = relative_utf16_range {
11478 let selections = self.selections.all::<OffsetUtf16>(cx);
11479 self.change_selections(None, cx, |s| {
11480 let new_ranges = selections.into_iter().map(|range| {
11481 let start = OffsetUtf16(
11482 range
11483 .head()
11484 .0
11485 .saturating_add_signed(relative_utf16_range.start),
11486 );
11487 let end = OffsetUtf16(
11488 range
11489 .head()
11490 .0
11491 .saturating_add_signed(relative_utf16_range.end),
11492 );
11493 start..end
11494 });
11495 s.select_ranges(new_ranges);
11496 });
11497 }
11498
11499 self.handle_input(text, cx);
11500 }
11501
11502 pub fn supports_inlay_hints(&self, cx: &AppContext) -> bool {
11503 let Some(project) = self.project.as_ref() else {
11504 return false;
11505 };
11506 let project = project.read(cx);
11507
11508 let mut supports = false;
11509 self.buffer().read(cx).for_each_buffer(|buffer| {
11510 if !supports {
11511 supports = project
11512 .language_servers_for_buffer(buffer.read(cx), cx)
11513 .any(
11514 |(_, server)| match server.capabilities().inlay_hint_provider {
11515 Some(lsp::OneOf::Left(enabled)) => enabled,
11516 Some(lsp::OneOf::Right(_)) => true,
11517 None => false,
11518 },
11519 )
11520 }
11521 });
11522 supports
11523 }
11524
11525 pub fn focus(&self, cx: &mut WindowContext) {
11526 cx.focus(&self.focus_handle)
11527 }
11528
11529 pub fn is_focused(&self, cx: &WindowContext) -> bool {
11530 self.focus_handle.is_focused(cx)
11531 }
11532
11533 fn handle_focus(&mut self, cx: &mut ViewContext<Self>) {
11534 cx.emit(EditorEvent::Focused);
11535
11536 if let Some(descendant) = self
11537 .last_focused_descendant
11538 .take()
11539 .and_then(|descendant| descendant.upgrade())
11540 {
11541 cx.focus(&descendant);
11542 } else {
11543 if let Some(blame) = self.blame.as_ref() {
11544 blame.update(cx, GitBlame::focus)
11545 }
11546
11547 self.blink_manager.update(cx, BlinkManager::enable);
11548 self.show_cursor_names(cx);
11549 self.buffer.update(cx, |buffer, cx| {
11550 buffer.finalize_last_transaction(cx);
11551 if self.leader_peer_id.is_none() {
11552 buffer.set_active_selections(
11553 &self.selections.disjoint_anchors(),
11554 self.selections.line_mode,
11555 self.cursor_shape,
11556 cx,
11557 );
11558 }
11559 });
11560 }
11561 }
11562
11563 fn handle_focus_out(&mut self, event: FocusOutEvent, _cx: &mut ViewContext<Self>) {
11564 if event.blurred != self.focus_handle {
11565 self.last_focused_descendant = Some(event.blurred);
11566 }
11567 }
11568
11569 pub fn handle_blur(&mut self, cx: &mut ViewContext<Self>) {
11570 self.blink_manager.update(cx, BlinkManager::disable);
11571 self.buffer
11572 .update(cx, |buffer, cx| buffer.remove_active_selections(cx));
11573
11574 if let Some(blame) = self.blame.as_ref() {
11575 blame.update(cx, GitBlame::blur)
11576 }
11577 self.hide_context_menu(cx);
11578 hide_hover(self, cx);
11579 cx.emit(EditorEvent::Blurred);
11580 cx.notify();
11581 }
11582
11583 pub fn register_action<A: Action>(
11584 &mut self,
11585 listener: impl Fn(&A, &mut WindowContext) + 'static,
11586 ) -> Subscription {
11587 let id = self.next_editor_action_id.post_inc();
11588 let listener = Arc::new(listener);
11589 self.editor_actions.borrow_mut().insert(
11590 id,
11591 Box::new(move |cx| {
11592 let _view = cx.view().clone();
11593 let cx = cx.window_context();
11594 let listener = listener.clone();
11595 cx.on_action(TypeId::of::<A>(), move |action, phase, cx| {
11596 let action = action.downcast_ref().unwrap();
11597 if phase == DispatchPhase::Bubble {
11598 listener(action, cx)
11599 }
11600 })
11601 }),
11602 );
11603
11604 let editor_actions = self.editor_actions.clone();
11605 Subscription::new(move || {
11606 editor_actions.borrow_mut().remove(&id);
11607 })
11608 }
11609
11610 pub fn file_header_size(&self) -> u8 {
11611 self.file_header_size
11612 }
11613}
11614
11615fn hunks_for_selections(
11616 multi_buffer_snapshot: &MultiBufferSnapshot,
11617 selections: &[Selection<Anchor>],
11618) -> Vec<DiffHunk<MultiBufferRow>> {
11619 let mut hunks = Vec::with_capacity(selections.len());
11620 let mut processed_buffer_rows: HashMap<BufferId, HashSet<Range<text::Anchor>>> =
11621 HashMap::default();
11622 let buffer_rows_for_selections = selections.iter().map(|selection| {
11623 let head = selection.head();
11624 let tail = selection.tail();
11625 let start = MultiBufferRow(tail.to_point(&multi_buffer_snapshot).row);
11626 let end = MultiBufferRow(head.to_point(&multi_buffer_snapshot).row);
11627 if start > end {
11628 end..start
11629 } else {
11630 start..end
11631 }
11632 });
11633
11634 for selected_multi_buffer_rows in buffer_rows_for_selections {
11635 let query_rows =
11636 selected_multi_buffer_rows.start..selected_multi_buffer_rows.end.next_row();
11637 for hunk in multi_buffer_snapshot.git_diff_hunks_in_range(query_rows.clone()) {
11638 // Deleted hunk is an empty row range, no caret can be placed there and Zed allows to revert it
11639 // when the caret is just above or just below the deleted hunk.
11640 let allow_adjacent = hunk_status(&hunk) == DiffHunkStatus::Removed;
11641 let related_to_selection = if allow_adjacent {
11642 hunk.associated_range.overlaps(&query_rows)
11643 || hunk.associated_range.start == query_rows.end
11644 || hunk.associated_range.end == query_rows.start
11645 } else {
11646 // `selected_multi_buffer_rows` are inclusive (e.g. [2..2] means 2nd row is selected)
11647 // `hunk.associated_range` is exclusive (e.g. [2..3] means 2nd row is selected)
11648 hunk.associated_range.overlaps(&selected_multi_buffer_rows)
11649 || selected_multi_buffer_rows.end == hunk.associated_range.start
11650 };
11651 if related_to_selection {
11652 if !processed_buffer_rows
11653 .entry(hunk.buffer_id)
11654 .or_default()
11655 .insert(hunk.buffer_range.start..hunk.buffer_range.end)
11656 {
11657 continue;
11658 }
11659 hunks.push(hunk);
11660 }
11661 }
11662 }
11663
11664 hunks
11665}
11666
11667pub trait CollaborationHub {
11668 fn collaborators<'a>(&self, cx: &'a AppContext) -> &'a HashMap<PeerId, Collaborator>;
11669 fn user_participant_indices<'a>(
11670 &self,
11671 cx: &'a AppContext,
11672 ) -> &'a HashMap<u64, ParticipantIndex>;
11673 fn user_names(&self, cx: &AppContext) -> HashMap<u64, SharedString>;
11674}
11675
11676impl CollaborationHub for Model<Project> {
11677 fn collaborators<'a>(&self, cx: &'a AppContext) -> &'a HashMap<PeerId, Collaborator> {
11678 self.read(cx).collaborators()
11679 }
11680
11681 fn user_participant_indices<'a>(
11682 &self,
11683 cx: &'a AppContext,
11684 ) -> &'a HashMap<u64, ParticipantIndex> {
11685 self.read(cx).user_store().read(cx).participant_indices()
11686 }
11687
11688 fn user_names(&self, cx: &AppContext) -> HashMap<u64, SharedString> {
11689 let this = self.read(cx);
11690 let user_ids = this.collaborators().values().map(|c| c.user_id);
11691 this.user_store().read_with(cx, |user_store, cx| {
11692 user_store.participant_names(user_ids, cx)
11693 })
11694 }
11695}
11696
11697pub trait CompletionProvider {
11698 fn completions(
11699 &self,
11700 buffer: &Model<Buffer>,
11701 buffer_position: text::Anchor,
11702 trigger: CompletionContext,
11703 cx: &mut ViewContext<Editor>,
11704 ) -> Task<Result<Vec<Completion>>>;
11705
11706 fn resolve_completions(
11707 &self,
11708 buffer: Model<Buffer>,
11709 completion_indices: Vec<usize>,
11710 completions: Arc<RwLock<Box<[Completion]>>>,
11711 cx: &mut ViewContext<Editor>,
11712 ) -> Task<Result<bool>>;
11713
11714 fn apply_additional_edits_for_completion(
11715 &self,
11716 buffer: Model<Buffer>,
11717 completion: Completion,
11718 push_to_history: bool,
11719 cx: &mut ViewContext<Editor>,
11720 ) -> Task<Result<Option<language::Transaction>>>;
11721
11722 fn is_completion_trigger(
11723 &self,
11724 buffer: &Model<Buffer>,
11725 position: language::Anchor,
11726 text: &str,
11727 trigger_in_words: bool,
11728 cx: &mut ViewContext<Editor>,
11729 ) -> bool;
11730}
11731
11732impl CompletionProvider for Model<Project> {
11733 fn completions(
11734 &self,
11735 buffer: &Model<Buffer>,
11736 buffer_position: text::Anchor,
11737 options: CompletionContext,
11738 cx: &mut ViewContext<Editor>,
11739 ) -> Task<Result<Vec<Completion>>> {
11740 self.update(cx, |project, cx| {
11741 project.completions(&buffer, buffer_position, options, cx)
11742 })
11743 }
11744
11745 fn resolve_completions(
11746 &self,
11747 buffer: Model<Buffer>,
11748 completion_indices: Vec<usize>,
11749 completions: Arc<RwLock<Box<[Completion]>>>,
11750 cx: &mut ViewContext<Editor>,
11751 ) -> Task<Result<bool>> {
11752 self.update(cx, |project, cx| {
11753 project.resolve_completions(buffer, completion_indices, completions, cx)
11754 })
11755 }
11756
11757 fn apply_additional_edits_for_completion(
11758 &self,
11759 buffer: Model<Buffer>,
11760 completion: Completion,
11761 push_to_history: bool,
11762 cx: &mut ViewContext<Editor>,
11763 ) -> Task<Result<Option<language::Transaction>>> {
11764 self.update(cx, |project, cx| {
11765 project.apply_additional_edits_for_completion(buffer, completion, push_to_history, cx)
11766 })
11767 }
11768
11769 fn is_completion_trigger(
11770 &self,
11771 buffer: &Model<Buffer>,
11772 position: language::Anchor,
11773 text: &str,
11774 trigger_in_words: bool,
11775 cx: &mut ViewContext<Editor>,
11776 ) -> bool {
11777 if !EditorSettings::get_global(cx).show_completions_on_input {
11778 return false;
11779 }
11780
11781 let mut chars = text.chars();
11782 let char = if let Some(char) = chars.next() {
11783 char
11784 } else {
11785 return false;
11786 };
11787 if chars.next().is_some() {
11788 return false;
11789 }
11790
11791 let buffer = buffer.read(cx);
11792 let scope = buffer.snapshot().language_scope_at(position);
11793 if trigger_in_words && char_kind(&scope, char) == CharKind::Word {
11794 return true;
11795 }
11796
11797 buffer
11798 .completion_triggers()
11799 .iter()
11800 .any(|string| string == text)
11801 }
11802}
11803
11804fn inlay_hint_settings(
11805 location: Anchor,
11806 snapshot: &MultiBufferSnapshot,
11807 cx: &mut ViewContext<'_, Editor>,
11808) -> InlayHintSettings {
11809 let file = snapshot.file_at(location);
11810 let language = snapshot.language_at(location);
11811 let settings = all_language_settings(file, cx);
11812 settings
11813 .language(language.map(|l| l.name()).as_deref())
11814 .inlay_hints
11815}
11816
11817fn consume_contiguous_rows(
11818 contiguous_row_selections: &mut Vec<Selection<Point>>,
11819 selection: &Selection<Point>,
11820 display_map: &DisplaySnapshot,
11821 selections: &mut std::iter::Peekable<std::slice::Iter<Selection<Point>>>,
11822) -> (MultiBufferRow, MultiBufferRow) {
11823 contiguous_row_selections.push(selection.clone());
11824 let start_row = MultiBufferRow(selection.start.row);
11825 let mut end_row = ending_row(selection, display_map);
11826
11827 while let Some(next_selection) = selections.peek() {
11828 if next_selection.start.row <= end_row.0 {
11829 end_row = ending_row(next_selection, display_map);
11830 contiguous_row_selections.push(selections.next().unwrap().clone());
11831 } else {
11832 break;
11833 }
11834 }
11835 (start_row, end_row)
11836}
11837
11838fn ending_row(next_selection: &Selection<Point>, display_map: &DisplaySnapshot) -> MultiBufferRow {
11839 if next_selection.end.column > 0 || next_selection.is_empty() {
11840 MultiBufferRow(display_map.next_line_boundary(next_selection.end).0.row + 1)
11841 } else {
11842 MultiBufferRow(next_selection.end.row)
11843 }
11844}
11845
11846impl EditorSnapshot {
11847 pub fn remote_selections_in_range<'a>(
11848 &'a self,
11849 range: &'a Range<Anchor>,
11850 collaboration_hub: &dyn CollaborationHub,
11851 cx: &'a AppContext,
11852 ) -> impl 'a + Iterator<Item = RemoteSelection> {
11853 let participant_names = collaboration_hub.user_names(cx);
11854 let participant_indices = collaboration_hub.user_participant_indices(cx);
11855 let collaborators_by_peer_id = collaboration_hub.collaborators(cx);
11856 let collaborators_by_replica_id = collaborators_by_peer_id
11857 .iter()
11858 .map(|(_, collaborator)| (collaborator.replica_id, collaborator))
11859 .collect::<HashMap<_, _>>();
11860 self.buffer_snapshot
11861 .selections_in_range(range, false)
11862 .filter_map(move |(replica_id, line_mode, cursor_shape, selection)| {
11863 let collaborator = collaborators_by_replica_id.get(&replica_id)?;
11864 let participant_index = participant_indices.get(&collaborator.user_id).copied();
11865 let user_name = participant_names.get(&collaborator.user_id).cloned();
11866 Some(RemoteSelection {
11867 replica_id,
11868 selection,
11869 cursor_shape,
11870 line_mode,
11871 participant_index,
11872 peer_id: collaborator.peer_id,
11873 user_name,
11874 })
11875 })
11876 }
11877
11878 pub fn language_at<T: ToOffset>(&self, position: T) -> Option<&Arc<Language>> {
11879 self.display_snapshot.buffer_snapshot.language_at(position)
11880 }
11881
11882 pub fn is_focused(&self) -> bool {
11883 self.is_focused
11884 }
11885
11886 pub fn placeholder_text(&self) -> Option<&Arc<str>> {
11887 self.placeholder_text.as_ref()
11888 }
11889
11890 pub fn scroll_position(&self) -> gpui::Point<f32> {
11891 self.scroll_anchor.scroll_position(&self.display_snapshot)
11892 }
11893
11894 pub fn gutter_dimensions(
11895 &self,
11896 font_id: FontId,
11897 font_size: Pixels,
11898 em_width: Pixels,
11899 max_line_number_width: Pixels,
11900 cx: &AppContext,
11901 ) -> GutterDimensions {
11902 if !self.show_gutter {
11903 return GutterDimensions::default();
11904 }
11905 let descent = cx.text_system().descent(font_id, font_size);
11906
11907 let show_git_gutter = self.show_git_diff_gutter.unwrap_or_else(|| {
11908 matches!(
11909 ProjectSettings::get_global(cx).git.git_gutter,
11910 Some(GitGutterSetting::TrackedFiles)
11911 )
11912 });
11913 let gutter_settings = EditorSettings::get_global(cx).gutter;
11914 let show_line_numbers = self
11915 .show_line_numbers
11916 .unwrap_or(gutter_settings.line_numbers);
11917 let line_gutter_width = if show_line_numbers {
11918 // Avoid flicker-like gutter resizes when the line number gains another digit and only resize the gutter on files with N*10^5 lines.
11919 let min_width_for_number_on_gutter = em_width * 4.0;
11920 max_line_number_width.max(min_width_for_number_on_gutter)
11921 } else {
11922 0.0.into()
11923 };
11924
11925 let show_code_actions = self
11926 .show_code_actions
11927 .unwrap_or(gutter_settings.code_actions);
11928
11929 let show_runnables = self.show_runnables.unwrap_or(gutter_settings.runnables);
11930
11931 let git_blame_entries_width = self
11932 .render_git_blame_gutter
11933 .then_some(em_width * GIT_BLAME_GUTTER_WIDTH_CHARS);
11934
11935 let mut left_padding = git_blame_entries_width.unwrap_or(Pixels::ZERO);
11936 left_padding += if show_code_actions || show_runnables {
11937 em_width * 3.0
11938 } else if show_git_gutter && show_line_numbers {
11939 em_width * 2.0
11940 } else if show_git_gutter || show_line_numbers {
11941 em_width
11942 } else {
11943 px(0.)
11944 };
11945
11946 let right_padding = if gutter_settings.folds && show_line_numbers {
11947 em_width * 4.0
11948 } else if gutter_settings.folds {
11949 em_width * 3.0
11950 } else if show_line_numbers {
11951 em_width
11952 } else {
11953 px(0.)
11954 };
11955
11956 GutterDimensions {
11957 left_padding,
11958 right_padding,
11959 width: line_gutter_width + left_padding + right_padding,
11960 margin: -descent,
11961 git_blame_entries_width,
11962 }
11963 }
11964
11965 pub fn render_fold_toggle(
11966 &self,
11967 buffer_row: MultiBufferRow,
11968 row_contains_cursor: bool,
11969 editor: View<Editor>,
11970 cx: &mut WindowContext,
11971 ) -> Option<AnyElement> {
11972 let folded = self.is_line_folded(buffer_row);
11973
11974 if let Some(crease) = self
11975 .crease_snapshot
11976 .query_row(buffer_row, &self.buffer_snapshot)
11977 {
11978 let toggle_callback = Arc::new(move |folded, cx: &mut WindowContext| {
11979 if folded {
11980 editor.update(cx, |editor, cx| {
11981 editor.fold_at(&crate::FoldAt { buffer_row }, cx)
11982 });
11983 } else {
11984 editor.update(cx, |editor, cx| {
11985 editor.unfold_at(&crate::UnfoldAt { buffer_row }, cx)
11986 });
11987 }
11988 });
11989
11990 Some((crease.render_toggle)(
11991 buffer_row,
11992 folded,
11993 toggle_callback,
11994 cx,
11995 ))
11996 } else if folded
11997 || (self.starts_indent(buffer_row) && (row_contains_cursor || self.gutter_hovered))
11998 {
11999 Some(
12000 Disclosure::new(("indent-fold-indicator", buffer_row.0), !folded)
12001 .selected(folded)
12002 .on_click(cx.listener_for(&editor, move |this, _e, cx| {
12003 if folded {
12004 this.unfold_at(&UnfoldAt { buffer_row }, cx);
12005 } else {
12006 this.fold_at(&FoldAt { buffer_row }, cx);
12007 }
12008 }))
12009 .into_any_element(),
12010 )
12011 } else {
12012 None
12013 }
12014 }
12015
12016 pub fn render_crease_trailer(
12017 &self,
12018 buffer_row: MultiBufferRow,
12019 cx: &mut WindowContext,
12020 ) -> Option<AnyElement> {
12021 let folded = self.is_line_folded(buffer_row);
12022 let crease = self
12023 .crease_snapshot
12024 .query_row(buffer_row, &self.buffer_snapshot)?;
12025 Some((crease.render_trailer)(buffer_row, folded, cx))
12026 }
12027}
12028
12029impl Deref for EditorSnapshot {
12030 type Target = DisplaySnapshot;
12031
12032 fn deref(&self) -> &Self::Target {
12033 &self.display_snapshot
12034 }
12035}
12036
12037#[derive(Clone, Debug, PartialEq, Eq)]
12038pub enum EditorEvent {
12039 InputIgnored {
12040 text: Arc<str>,
12041 },
12042 InputHandled {
12043 utf16_range_to_replace: Option<Range<isize>>,
12044 text: Arc<str>,
12045 },
12046 ExcerptsAdded {
12047 buffer: Model<Buffer>,
12048 predecessor: ExcerptId,
12049 excerpts: Vec<(ExcerptId, ExcerptRange<language::Anchor>)>,
12050 },
12051 ExcerptsRemoved {
12052 ids: Vec<ExcerptId>,
12053 },
12054 ExcerptsEdited {
12055 ids: Vec<ExcerptId>,
12056 },
12057 ExcerptsExpanded {
12058 ids: Vec<ExcerptId>,
12059 },
12060 BufferEdited,
12061 Edited {
12062 transaction_id: clock::Lamport,
12063 },
12064 Reparsed(BufferId),
12065 Focused,
12066 Blurred,
12067 DirtyChanged,
12068 Saved,
12069 TitleChanged,
12070 DiffBaseChanged,
12071 SelectionsChanged {
12072 local: bool,
12073 },
12074 ScrollPositionChanged {
12075 local: bool,
12076 autoscroll: bool,
12077 },
12078 Closed,
12079 TransactionUndone {
12080 transaction_id: clock::Lamport,
12081 },
12082 TransactionBegun {
12083 transaction_id: clock::Lamport,
12084 },
12085}
12086
12087impl EventEmitter<EditorEvent> for Editor {}
12088
12089impl FocusableView for Editor {
12090 fn focus_handle(&self, _cx: &AppContext) -> FocusHandle {
12091 self.focus_handle.clone()
12092 }
12093}
12094
12095impl Render for Editor {
12096 fn render<'a>(&mut self, cx: &mut ViewContext<'a, Self>) -> impl IntoElement {
12097 let settings = ThemeSettings::get_global(cx);
12098
12099 let text_style = match self.mode {
12100 EditorMode::SingleLine { .. } | EditorMode::AutoHeight { .. } => TextStyle {
12101 color: cx.theme().colors().editor_foreground,
12102 font_family: settings.ui_font.family.clone(),
12103 font_features: settings.ui_font.features.clone(),
12104 font_size: rems(0.875).into(),
12105 font_weight: settings.ui_font.weight,
12106 font_style: FontStyle::Normal,
12107 line_height: relative(settings.buffer_line_height.value()),
12108 background_color: None,
12109 underline: None,
12110 strikethrough: None,
12111 white_space: WhiteSpace::Normal,
12112 },
12113 EditorMode::Full => TextStyle {
12114 color: cx.theme().colors().editor_foreground,
12115 font_family: settings.buffer_font.family.clone(),
12116 font_features: settings.buffer_font.features.clone(),
12117 font_size: settings.buffer_font_size(cx).into(),
12118 font_weight: settings.buffer_font.weight,
12119 font_style: FontStyle::Normal,
12120 line_height: relative(settings.buffer_line_height.value()),
12121 background_color: None,
12122 underline: None,
12123 strikethrough: None,
12124 white_space: WhiteSpace::Normal,
12125 },
12126 };
12127
12128 let background = match self.mode {
12129 EditorMode::SingleLine { .. } => cx.theme().system().transparent,
12130 EditorMode::AutoHeight { max_lines: _ } => cx.theme().system().transparent,
12131 EditorMode::Full => cx.theme().colors().editor_background,
12132 };
12133
12134 EditorElement::new(
12135 cx.view(),
12136 EditorStyle {
12137 background,
12138 local_player: cx.theme().players().local(),
12139 text: text_style,
12140 scrollbar_width: EditorElement::SCROLLBAR_WIDTH,
12141 syntax: cx.theme().syntax().clone(),
12142 status: cx.theme().status().clone(),
12143 inlay_hints_style: HighlightStyle {
12144 color: Some(cx.theme().status().hint),
12145 ..HighlightStyle::default()
12146 },
12147 suggestions_style: HighlightStyle {
12148 color: Some(cx.theme().status().predictive),
12149 ..HighlightStyle::default()
12150 },
12151 },
12152 )
12153 }
12154}
12155
12156impl ViewInputHandler for Editor {
12157 fn text_for_range(
12158 &mut self,
12159 range_utf16: Range<usize>,
12160 cx: &mut ViewContext<Self>,
12161 ) -> Option<String> {
12162 Some(
12163 self.buffer
12164 .read(cx)
12165 .read(cx)
12166 .text_for_range(OffsetUtf16(range_utf16.start)..OffsetUtf16(range_utf16.end))
12167 .collect(),
12168 )
12169 }
12170
12171 fn selected_text_range(&mut self, cx: &mut ViewContext<Self>) -> Option<Range<usize>> {
12172 // Prevent the IME menu from appearing when holding down an alphabetic key
12173 // while input is disabled.
12174 if !self.input_enabled {
12175 return None;
12176 }
12177
12178 let range = self.selections.newest::<OffsetUtf16>(cx).range();
12179 Some(range.start.0..range.end.0)
12180 }
12181
12182 fn marked_text_range(&self, cx: &mut ViewContext<Self>) -> Option<Range<usize>> {
12183 let snapshot = self.buffer.read(cx).read(cx);
12184 let range = self.text_highlights::<InputComposition>(cx)?.1.get(0)?;
12185 Some(range.start.to_offset_utf16(&snapshot).0..range.end.to_offset_utf16(&snapshot).0)
12186 }
12187
12188 fn unmark_text(&mut self, cx: &mut ViewContext<Self>) {
12189 self.clear_highlights::<InputComposition>(cx);
12190 self.ime_transaction.take();
12191 }
12192
12193 fn replace_text_in_range(
12194 &mut self,
12195 range_utf16: Option<Range<usize>>,
12196 text: &str,
12197 cx: &mut ViewContext<Self>,
12198 ) {
12199 if !self.input_enabled {
12200 cx.emit(EditorEvent::InputIgnored { text: text.into() });
12201 return;
12202 }
12203
12204 self.transact(cx, |this, cx| {
12205 let new_selected_ranges = if let Some(range_utf16) = range_utf16 {
12206 let range_utf16 = OffsetUtf16(range_utf16.start)..OffsetUtf16(range_utf16.end);
12207 Some(this.selection_replacement_ranges(range_utf16, cx))
12208 } else {
12209 this.marked_text_ranges(cx)
12210 };
12211
12212 let range_to_replace = new_selected_ranges.as_ref().and_then(|ranges_to_replace| {
12213 let newest_selection_id = this.selections.newest_anchor().id;
12214 this.selections
12215 .all::<OffsetUtf16>(cx)
12216 .iter()
12217 .zip(ranges_to_replace.iter())
12218 .find_map(|(selection, range)| {
12219 if selection.id == newest_selection_id {
12220 Some(
12221 (range.start.0 as isize - selection.head().0 as isize)
12222 ..(range.end.0 as isize - selection.head().0 as isize),
12223 )
12224 } else {
12225 None
12226 }
12227 })
12228 });
12229
12230 cx.emit(EditorEvent::InputHandled {
12231 utf16_range_to_replace: range_to_replace,
12232 text: text.into(),
12233 });
12234
12235 if let Some(new_selected_ranges) = new_selected_ranges {
12236 this.change_selections(None, cx, |selections| {
12237 selections.select_ranges(new_selected_ranges)
12238 });
12239 this.backspace(&Default::default(), cx);
12240 }
12241
12242 this.handle_input(text, cx);
12243 });
12244
12245 if let Some(transaction) = self.ime_transaction {
12246 self.buffer.update(cx, |buffer, cx| {
12247 buffer.group_until_transaction(transaction, cx);
12248 });
12249 }
12250
12251 self.unmark_text(cx);
12252 }
12253
12254 fn replace_and_mark_text_in_range(
12255 &mut self,
12256 range_utf16: Option<Range<usize>>,
12257 text: &str,
12258 new_selected_range_utf16: Option<Range<usize>>,
12259 cx: &mut ViewContext<Self>,
12260 ) {
12261 if !self.input_enabled {
12262 return;
12263 }
12264
12265 let transaction = self.transact(cx, |this, cx| {
12266 let ranges_to_replace = if let Some(mut marked_ranges) = this.marked_text_ranges(cx) {
12267 let snapshot = this.buffer.read(cx).read(cx);
12268 if let Some(relative_range_utf16) = range_utf16.as_ref() {
12269 for marked_range in &mut marked_ranges {
12270 marked_range.end.0 = marked_range.start.0 + relative_range_utf16.end;
12271 marked_range.start.0 += relative_range_utf16.start;
12272 marked_range.start =
12273 snapshot.clip_offset_utf16(marked_range.start, Bias::Left);
12274 marked_range.end =
12275 snapshot.clip_offset_utf16(marked_range.end, Bias::Right);
12276 }
12277 }
12278 Some(marked_ranges)
12279 } else if let Some(range_utf16) = range_utf16 {
12280 let range_utf16 = OffsetUtf16(range_utf16.start)..OffsetUtf16(range_utf16.end);
12281 Some(this.selection_replacement_ranges(range_utf16, cx))
12282 } else {
12283 None
12284 };
12285
12286 let range_to_replace = ranges_to_replace.as_ref().and_then(|ranges_to_replace| {
12287 let newest_selection_id = this.selections.newest_anchor().id;
12288 this.selections
12289 .all::<OffsetUtf16>(cx)
12290 .iter()
12291 .zip(ranges_to_replace.iter())
12292 .find_map(|(selection, range)| {
12293 if selection.id == newest_selection_id {
12294 Some(
12295 (range.start.0 as isize - selection.head().0 as isize)
12296 ..(range.end.0 as isize - selection.head().0 as isize),
12297 )
12298 } else {
12299 None
12300 }
12301 })
12302 });
12303
12304 cx.emit(EditorEvent::InputHandled {
12305 utf16_range_to_replace: range_to_replace,
12306 text: text.into(),
12307 });
12308
12309 if let Some(ranges) = ranges_to_replace {
12310 this.change_selections(None, cx, |s| s.select_ranges(ranges));
12311 }
12312
12313 let marked_ranges = {
12314 let snapshot = this.buffer.read(cx).read(cx);
12315 this.selections
12316 .disjoint_anchors()
12317 .iter()
12318 .map(|selection| {
12319 selection.start.bias_left(&snapshot)..selection.end.bias_right(&snapshot)
12320 })
12321 .collect::<Vec<_>>()
12322 };
12323
12324 if text.is_empty() {
12325 this.unmark_text(cx);
12326 } else {
12327 this.highlight_text::<InputComposition>(
12328 marked_ranges.clone(),
12329 HighlightStyle {
12330 underline: Some(UnderlineStyle {
12331 thickness: px(1.),
12332 color: None,
12333 wavy: false,
12334 }),
12335 ..Default::default()
12336 },
12337 cx,
12338 );
12339 }
12340
12341 // Disable auto-closing when composing text (i.e. typing a `"` on a Brazilian keyboard)
12342 let use_autoclose = this.use_autoclose;
12343 let use_auto_surround = this.use_auto_surround;
12344 this.set_use_autoclose(false);
12345 this.set_use_auto_surround(false);
12346 this.handle_input(text, cx);
12347 this.set_use_autoclose(use_autoclose);
12348 this.set_use_auto_surround(use_auto_surround);
12349
12350 if let Some(new_selected_range) = new_selected_range_utf16 {
12351 let snapshot = this.buffer.read(cx).read(cx);
12352 let new_selected_ranges = marked_ranges
12353 .into_iter()
12354 .map(|marked_range| {
12355 let insertion_start = marked_range.start.to_offset_utf16(&snapshot).0;
12356 let new_start = OffsetUtf16(new_selected_range.start + insertion_start);
12357 let new_end = OffsetUtf16(new_selected_range.end + insertion_start);
12358 snapshot.clip_offset_utf16(new_start, Bias::Left)
12359 ..snapshot.clip_offset_utf16(new_end, Bias::Right)
12360 })
12361 .collect::<Vec<_>>();
12362
12363 drop(snapshot);
12364 this.change_selections(None, cx, |selections| {
12365 selections.select_ranges(new_selected_ranges)
12366 });
12367 }
12368 });
12369
12370 self.ime_transaction = self.ime_transaction.or(transaction);
12371 if let Some(transaction) = self.ime_transaction {
12372 self.buffer.update(cx, |buffer, cx| {
12373 buffer.group_until_transaction(transaction, cx);
12374 });
12375 }
12376
12377 if self.text_highlights::<InputComposition>(cx).is_none() {
12378 self.ime_transaction.take();
12379 }
12380 }
12381
12382 fn bounds_for_range(
12383 &mut self,
12384 range_utf16: Range<usize>,
12385 element_bounds: gpui::Bounds<Pixels>,
12386 cx: &mut ViewContext<Self>,
12387 ) -> Option<gpui::Bounds<Pixels>> {
12388 let text_layout_details = self.text_layout_details(cx);
12389 let style = &text_layout_details.editor_style;
12390 let font_id = cx.text_system().resolve_font(&style.text.font());
12391 let font_size = style.text.font_size.to_pixels(cx.rem_size());
12392 let line_height = style.text.line_height_in_pixels(cx.rem_size());
12393
12394 let em_width = cx
12395 .text_system()
12396 .typographic_bounds(font_id, font_size, 'm')
12397 .unwrap()
12398 .size
12399 .width;
12400
12401 let snapshot = self.snapshot(cx);
12402 let scroll_position = snapshot.scroll_position();
12403 let scroll_left = scroll_position.x * em_width;
12404
12405 let start = OffsetUtf16(range_utf16.start).to_display_point(&snapshot);
12406 let x = snapshot.x_for_display_point(start, &text_layout_details) - scroll_left
12407 + self.gutter_dimensions.width;
12408 let y = line_height * (start.row().as_f32() - scroll_position.y);
12409
12410 Some(Bounds {
12411 origin: element_bounds.origin + point(x, y),
12412 size: size(em_width, line_height),
12413 })
12414 }
12415}
12416
12417trait SelectionExt {
12418 fn display_range(&self, map: &DisplaySnapshot) -> Range<DisplayPoint>;
12419 fn spanned_rows(
12420 &self,
12421 include_end_if_at_line_start: bool,
12422 map: &DisplaySnapshot,
12423 ) -> Range<MultiBufferRow>;
12424}
12425
12426impl<T: ToPoint + ToOffset> SelectionExt for Selection<T> {
12427 fn display_range(&self, map: &DisplaySnapshot) -> Range<DisplayPoint> {
12428 let start = self
12429 .start
12430 .to_point(&map.buffer_snapshot)
12431 .to_display_point(map);
12432 let end = self
12433 .end
12434 .to_point(&map.buffer_snapshot)
12435 .to_display_point(map);
12436 if self.reversed {
12437 end..start
12438 } else {
12439 start..end
12440 }
12441 }
12442
12443 fn spanned_rows(
12444 &self,
12445 include_end_if_at_line_start: bool,
12446 map: &DisplaySnapshot,
12447 ) -> Range<MultiBufferRow> {
12448 let start = self.start.to_point(&map.buffer_snapshot);
12449 let mut end = self.end.to_point(&map.buffer_snapshot);
12450 if !include_end_if_at_line_start && start.row != end.row && end.column == 0 {
12451 end.row -= 1;
12452 }
12453
12454 let buffer_start = map.prev_line_boundary(start).0;
12455 let buffer_end = map.next_line_boundary(end).0;
12456 MultiBufferRow(buffer_start.row)..MultiBufferRow(buffer_end.row + 1)
12457 }
12458}
12459
12460impl<T: InvalidationRegion> InvalidationStack<T> {
12461 fn invalidate<S>(&mut self, selections: &[Selection<S>], buffer: &MultiBufferSnapshot)
12462 where
12463 S: Clone + ToOffset,
12464 {
12465 while let Some(region) = self.last() {
12466 let all_selections_inside_invalidation_ranges =
12467 if selections.len() == region.ranges().len() {
12468 selections
12469 .iter()
12470 .zip(region.ranges().iter().map(|r| r.to_offset(buffer)))
12471 .all(|(selection, invalidation_range)| {
12472 let head = selection.head().to_offset(buffer);
12473 invalidation_range.start <= head && invalidation_range.end >= head
12474 })
12475 } else {
12476 false
12477 };
12478
12479 if all_selections_inside_invalidation_ranges {
12480 break;
12481 } else {
12482 self.pop();
12483 }
12484 }
12485 }
12486}
12487
12488impl<T> Default for InvalidationStack<T> {
12489 fn default() -> Self {
12490 Self(Default::default())
12491 }
12492}
12493
12494impl<T> Deref for InvalidationStack<T> {
12495 type Target = Vec<T>;
12496
12497 fn deref(&self) -> &Self::Target {
12498 &self.0
12499 }
12500}
12501
12502impl<T> DerefMut for InvalidationStack<T> {
12503 fn deref_mut(&mut self) -> &mut Self::Target {
12504 &mut self.0
12505 }
12506}
12507
12508impl InvalidationRegion for SnippetState {
12509 fn ranges(&self) -> &[Range<Anchor>] {
12510 &self.ranges[self.active_index]
12511 }
12512}
12513
12514pub fn diagnostic_block_renderer(diagnostic: Diagnostic, _is_valid: bool) -> RenderBlock {
12515 let (text_without_backticks, code_ranges) = highlight_diagnostic_message(&diagnostic);
12516
12517 Box::new(move |cx: &mut BlockContext| {
12518 let group_id: SharedString = cx.block_id.to_string().into();
12519
12520 let mut text_style = cx.text_style().clone();
12521 text_style.color = diagnostic_style(diagnostic.severity, true, cx.theme().status());
12522 let theme_settings = ThemeSettings::get_global(cx);
12523 text_style.font_family = theme_settings.buffer_font.family.clone();
12524 text_style.font_style = theme_settings.buffer_font.style;
12525 text_style.font_features = theme_settings.buffer_font.features.clone();
12526 text_style.font_weight = theme_settings.buffer_font.weight;
12527
12528 let multi_line_diagnostic = diagnostic.message.contains('\n');
12529
12530 let buttons = |diagnostic: &Diagnostic, block_id: usize| {
12531 if multi_line_diagnostic {
12532 v_flex()
12533 } else {
12534 h_flex()
12535 }
12536 .children(diagnostic.is_primary.then(|| {
12537 IconButton::new(("close-block", block_id), IconName::XCircle)
12538 .icon_color(Color::Muted)
12539 .size(ButtonSize::Compact)
12540 .style(ButtonStyle::Transparent)
12541 .visible_on_hover(group_id.clone())
12542 .on_click(move |_click, cx| cx.dispatch_action(Box::new(Cancel)))
12543 .tooltip(|cx| Tooltip::for_action("Close Diagnostics", &Cancel, cx))
12544 }))
12545 .child(
12546 IconButton::new(("copy-block", block_id), IconName::Copy)
12547 .icon_color(Color::Muted)
12548 .size(ButtonSize::Compact)
12549 .style(ButtonStyle::Transparent)
12550 .visible_on_hover(group_id.clone())
12551 .on_click({
12552 let message = diagnostic.message.clone();
12553 move |_click, cx| cx.write_to_clipboard(ClipboardItem::new(message.clone()))
12554 })
12555 .tooltip(|cx| Tooltip::text("Copy diagnostic message", cx)),
12556 )
12557 };
12558
12559 let icon_size = buttons(&diagnostic, cx.block_id)
12560 .into_any_element()
12561 .layout_as_root(AvailableSpace::min_size(), cx);
12562
12563 h_flex()
12564 .id(cx.block_id)
12565 .group(group_id.clone())
12566 .relative()
12567 .size_full()
12568 .pl(cx.gutter_dimensions.width)
12569 .w(cx.max_width + cx.gutter_dimensions.width)
12570 .child(
12571 div()
12572 .flex()
12573 .w(cx.anchor_x - cx.gutter_dimensions.width - icon_size.width)
12574 .flex_shrink(),
12575 )
12576 .child(buttons(&diagnostic, cx.block_id))
12577 .child(div().flex().flex_shrink_0().child(
12578 StyledText::new(text_without_backticks.clone()).with_highlights(
12579 &text_style,
12580 code_ranges.iter().map(|range| {
12581 (
12582 range.clone(),
12583 HighlightStyle {
12584 font_weight: Some(FontWeight::BOLD),
12585 ..Default::default()
12586 },
12587 )
12588 }),
12589 ),
12590 ))
12591 .into_any_element()
12592 })
12593}
12594
12595pub fn highlight_diagnostic_message(diagnostic: &Diagnostic) -> (SharedString, Vec<Range<usize>>) {
12596 let mut text_without_backticks = String::new();
12597 let mut code_ranges = Vec::new();
12598
12599 if let Some(source) = &diagnostic.source {
12600 text_without_backticks.push_str(&source);
12601 code_ranges.push(0..source.len());
12602 text_without_backticks.push_str(": ");
12603 }
12604
12605 let mut prev_offset = 0;
12606 let mut in_code_block = false;
12607 for (ix, _) in diagnostic
12608 .message
12609 .match_indices('`')
12610 .chain([(diagnostic.message.len(), "")])
12611 {
12612 let prev_len = text_without_backticks.len();
12613 text_without_backticks.push_str(&diagnostic.message[prev_offset..ix]);
12614 prev_offset = ix + 1;
12615 if in_code_block {
12616 code_ranges.push(prev_len..text_without_backticks.len());
12617 in_code_block = false;
12618 } else {
12619 in_code_block = true;
12620 }
12621 }
12622
12623 (text_without_backticks.into(), code_ranges)
12624}
12625
12626fn diagnostic_style(severity: DiagnosticSeverity, valid: bool, colors: &StatusColors) -> Hsla {
12627 match (severity, valid) {
12628 (DiagnosticSeverity::ERROR, true) => colors.error,
12629 (DiagnosticSeverity::ERROR, false) => colors.error,
12630 (DiagnosticSeverity::WARNING, true) => colors.warning,
12631 (DiagnosticSeverity::WARNING, false) => colors.warning,
12632 (DiagnosticSeverity::INFORMATION, true) => colors.info,
12633 (DiagnosticSeverity::INFORMATION, false) => colors.info,
12634 (DiagnosticSeverity::HINT, true) => colors.info,
12635 (DiagnosticSeverity::HINT, false) => colors.info,
12636 _ => colors.ignored,
12637 }
12638}
12639
12640pub fn styled_runs_for_code_label<'a>(
12641 label: &'a CodeLabel,
12642 syntax_theme: &'a theme::SyntaxTheme,
12643) -> impl 'a + Iterator<Item = (Range<usize>, HighlightStyle)> {
12644 let fade_out = HighlightStyle {
12645 fade_out: Some(0.35),
12646 ..Default::default()
12647 };
12648
12649 let mut prev_end = label.filter_range.end;
12650 label
12651 .runs
12652 .iter()
12653 .enumerate()
12654 .flat_map(move |(ix, (range, highlight_id))| {
12655 let style = if let Some(style) = highlight_id.style(syntax_theme) {
12656 style
12657 } else {
12658 return Default::default();
12659 };
12660 let mut muted_style = style;
12661 muted_style.highlight(fade_out);
12662
12663 let mut runs = SmallVec::<[(Range<usize>, HighlightStyle); 3]>::new();
12664 if range.start >= label.filter_range.end {
12665 if range.start > prev_end {
12666 runs.push((prev_end..range.start, fade_out));
12667 }
12668 runs.push((range.clone(), muted_style));
12669 } else if range.end <= label.filter_range.end {
12670 runs.push((range.clone(), style));
12671 } else {
12672 runs.push((range.start..label.filter_range.end, style));
12673 runs.push((label.filter_range.end..range.end, muted_style));
12674 }
12675 prev_end = cmp::max(prev_end, range.end);
12676
12677 if ix + 1 == label.runs.len() && label.text.len() > prev_end {
12678 runs.push((prev_end..label.text.len(), fade_out));
12679 }
12680
12681 runs
12682 })
12683}
12684
12685pub(crate) fn split_words(text: &str) -> impl std::iter::Iterator<Item = &str> + '_ {
12686 let mut prev_index = 0;
12687 let mut prev_codepoint: Option<char> = None;
12688 text.char_indices()
12689 .chain([(text.len(), '\0')])
12690 .filter_map(move |(index, codepoint)| {
12691 let prev_codepoint = prev_codepoint.replace(codepoint)?;
12692 let is_boundary = index == text.len()
12693 || !prev_codepoint.is_uppercase() && codepoint.is_uppercase()
12694 || !prev_codepoint.is_alphanumeric() && codepoint.is_alphanumeric();
12695 if is_boundary {
12696 let chunk = &text[prev_index..index];
12697 prev_index = index;
12698 Some(chunk)
12699 } else {
12700 None
12701 }
12702 })
12703}
12704
12705trait RangeToAnchorExt {
12706 fn to_anchors(self, snapshot: &MultiBufferSnapshot) -> Range<Anchor>;
12707}
12708
12709impl<T: ToOffset> RangeToAnchorExt for Range<T> {
12710 fn to_anchors(self, snapshot: &MultiBufferSnapshot) -> Range<Anchor> {
12711 let start_offset = self.start.to_offset(snapshot);
12712 let end_offset = self.end.to_offset(snapshot);
12713 if start_offset == end_offset {
12714 snapshot.anchor_before(start_offset)..snapshot.anchor_before(end_offset)
12715 } else {
12716 snapshot.anchor_after(self.start)..snapshot.anchor_before(self.end)
12717 }
12718 }
12719}
12720
12721pub trait RowExt {
12722 fn as_f32(&self) -> f32;
12723
12724 fn next_row(&self) -> Self;
12725
12726 fn previous_row(&self) -> Self;
12727
12728 fn minus(&self, other: Self) -> u32;
12729}
12730
12731impl RowExt for DisplayRow {
12732 fn as_f32(&self) -> f32 {
12733 self.0 as f32
12734 }
12735
12736 fn next_row(&self) -> Self {
12737 Self(self.0 + 1)
12738 }
12739
12740 fn previous_row(&self) -> Self {
12741 Self(self.0.saturating_sub(1))
12742 }
12743
12744 fn minus(&self, other: Self) -> u32 {
12745 self.0 - other.0
12746 }
12747}
12748
12749impl RowExt for MultiBufferRow {
12750 fn as_f32(&self) -> f32 {
12751 self.0 as f32
12752 }
12753
12754 fn next_row(&self) -> Self {
12755 Self(self.0 + 1)
12756 }
12757
12758 fn previous_row(&self) -> Self {
12759 Self(self.0.saturating_sub(1))
12760 }
12761
12762 fn minus(&self, other: Self) -> u32 {
12763 self.0 - other.0
12764 }
12765}
12766
12767trait RowRangeExt {
12768 type Row;
12769
12770 fn len(&self) -> usize;
12771
12772 fn iter_rows(&self) -> impl DoubleEndedIterator<Item = Self::Row>;
12773}
12774
12775impl RowRangeExt for Range<MultiBufferRow> {
12776 type Row = MultiBufferRow;
12777
12778 fn len(&self) -> usize {
12779 (self.end.0 - self.start.0) as usize
12780 }
12781
12782 fn iter_rows(&self) -> impl DoubleEndedIterator<Item = MultiBufferRow> {
12783 (self.start.0..self.end.0).map(MultiBufferRow)
12784 }
12785}
12786
12787impl RowRangeExt for Range<DisplayRow> {
12788 type Row = DisplayRow;
12789
12790 fn len(&self) -> usize {
12791 (self.end.0 - self.start.0) as usize
12792 }
12793
12794 fn iter_rows(&self) -> impl DoubleEndedIterator<Item = DisplayRow> {
12795 (self.start.0..self.end.0).map(DisplayRow)
12796 }
12797}
12798
12799fn hunk_status(hunk: &DiffHunk<MultiBufferRow>) -> DiffHunkStatus {
12800 if hunk.diff_base_byte_range.is_empty() {
12801 DiffHunkStatus::Added
12802 } else if hunk.associated_range.is_empty() {
12803 DiffHunkStatus::Removed
12804 } else {
12805 DiffHunkStatus::Modified
12806 }
12807}