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::{point_to_lsp, 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::{
99 CompletionItemKind, CompletionTriggerKind, DiagnosticSeverity, InsertTextFormat,
100 LanguageServerId,
101};
102use mouse_context_menu::MouseContextMenu;
103use movement::TextLayoutDetails;
104pub use multi_buffer::{
105 Anchor, AnchorRangeExt, ExcerptId, ExcerptRange, MultiBuffer, MultiBufferSnapshot, ToOffset,
106 ToPoint,
107};
108use multi_buffer::{ExpandExcerptDirection, MultiBufferPoint, MultiBufferRow, ToOffsetUtf16};
109use ordered_float::OrderedFloat;
110use parking_lot::{Mutex, RwLock};
111use project::project_settings::{GitGutterSetting, ProjectSettings};
112use project::{
113 CodeAction, Completion, FormatTrigger, Item, Location, Project, ProjectPath,
114 ProjectTransaction, TaskSourceKind, WorktreeId,
115};
116use rand::prelude::*;
117use rpc::{proto::*, ErrorExt};
118use scroll::{Autoscroll, OngoingScroll, ScrollAnchor, ScrollManager, ScrollbarAutoHide};
119use selections_collection::{resolve_multiple, MutableSelectionsCollection, SelectionsCollection};
120use serde::{Deserialize, Serialize};
121use settings::{update_settings_file, Settings, SettingsStore};
122use smallvec::SmallVec;
123use snippet::Snippet;
124use std::{
125 any::TypeId,
126 borrow::Cow,
127 cell::RefCell,
128 cmp::{self, Ordering, Reverse},
129 mem,
130 num::NonZeroU32,
131 ops::{ControlFlow, Deref, DerefMut, Not as _, Range, RangeInclusive},
132 path::Path,
133 rc::Rc,
134 sync::Arc,
135 time::{Duration, Instant},
136};
137pub use sum_tree::Bias;
138use sum_tree::TreeMap;
139use text::{BufferId, OffsetUtf16, Rope};
140use theme::{
141 observe_buffer_font_size_adjustment, ActiveTheme, PlayerColor, StatusColors, SyntaxTheme,
142 ThemeColors, ThemeSettings,
143};
144use ui::{
145 h_flex, prelude::*, ButtonSize, ButtonStyle, Disclosure, IconButton, IconName, IconSize,
146 ListItem, Popover, Tooltip,
147};
148use util::{defer, maybe, post_inc, RangeExt, ResultExt, TryFutureExt};
149use workspace::item::{ItemHandle, PreviewTabsSettings};
150use workspace::notifications::{DetachAndPromptErr, NotificationId};
151use workspace::{
152 searchable::SearchEvent, ItemNavHistory, SplitDirection, ViewId, Workspace, WorkspaceId,
153};
154use workspace::{OpenInTerminal, OpenTerminal, TabBarSettings, Toast};
155
156use crate::hover_links::find_url;
157
158pub const FILE_HEADER_HEIGHT: u8 = 1;
159pub const MULTI_BUFFER_EXCERPT_HEADER_HEIGHT: u8 = 1;
160pub const MULTI_BUFFER_EXCERPT_FOOTER_HEIGHT: u8 = 1;
161pub const DEFAULT_MULTIBUFFER_CONTEXT: u32 = 2;
162const CURSOR_BLINK_INTERVAL: Duration = Duration::from_millis(500);
163const MAX_LINE_LEN: usize = 1024;
164const MIN_NAVIGATION_HISTORY_ROW_DELTA: i64 = 10;
165const MAX_SELECTION_HISTORY_LEN: usize = 1024;
166pub(crate) const CURSORS_VISIBLE_FOR: Duration = Duration::from_millis(2000);
167#[doc(hidden)]
168pub const CODE_ACTIONS_DEBOUNCE_TIMEOUT: Duration = Duration::from_millis(250);
169#[doc(hidden)]
170pub const DOCUMENT_HIGHLIGHTS_DEBOUNCE_TIMEOUT: Duration = Duration::from_millis(75);
171
172pub(crate) const FORMAT_TIMEOUT: Duration = Duration::from_secs(2);
173
174pub fn render_parsed_markdown(
175 element_id: impl Into<ElementId>,
176 parsed: &language::ParsedMarkdown,
177 editor_style: &EditorStyle,
178 workspace: Option<WeakView<Workspace>>,
179 cx: &mut WindowContext,
180) -> InteractiveText {
181 let code_span_background_color = cx
182 .theme()
183 .colors()
184 .editor_document_highlight_read_background;
185
186 let highlights = gpui::combine_highlights(
187 parsed.highlights.iter().filter_map(|(range, highlight)| {
188 let highlight = highlight.to_highlight_style(&editor_style.syntax)?;
189 Some((range.clone(), highlight))
190 }),
191 parsed
192 .regions
193 .iter()
194 .zip(&parsed.region_ranges)
195 .filter_map(|(region, range)| {
196 if region.code {
197 Some((
198 range.clone(),
199 HighlightStyle {
200 background_color: Some(code_span_background_color),
201 ..Default::default()
202 },
203 ))
204 } else {
205 None
206 }
207 }),
208 );
209
210 let mut links = Vec::new();
211 let mut link_ranges = Vec::new();
212 for (range, region) in parsed.region_ranges.iter().zip(&parsed.regions) {
213 if let Some(link) = region.link.clone() {
214 links.push(link);
215 link_ranges.push(range.clone());
216 }
217 }
218
219 InteractiveText::new(
220 element_id,
221 StyledText::new(parsed.text.clone()).with_highlights(&editor_style.text, highlights),
222 )
223 .on_click(link_ranges, move |clicked_range_ix, cx| {
224 match &links[clicked_range_ix] {
225 markdown::Link::Web { url } => cx.open_url(url),
226 markdown::Link::Path { path } => {
227 if let Some(workspace) = &workspace {
228 _ = workspace.update(cx, |workspace, cx| {
229 workspace.open_abs_path(path.clone(), false, cx).detach();
230 });
231 }
232 }
233 }
234 })
235}
236
237#[derive(Clone, Copy, Debug, PartialEq, Eq, PartialOrd, Ord, Hash)]
238pub(crate) enum InlayId {
239 Suggestion(usize),
240 Hint(usize),
241}
242
243impl InlayId {
244 fn id(&self) -> usize {
245 match self {
246 Self::Suggestion(id) => *id,
247 Self::Hint(id) => *id,
248 }
249 }
250}
251
252enum DiffRowHighlight {}
253enum DocumentHighlightRead {}
254enum DocumentHighlightWrite {}
255enum InputComposition {}
256
257#[derive(Copy, Clone, PartialEq, Eq)]
258pub enum Direction {
259 Prev,
260 Next,
261}
262
263pub fn init_settings(cx: &mut AppContext) {
264 EditorSettings::register(cx);
265}
266
267pub fn init(cx: &mut AppContext) {
268 init_settings(cx);
269
270 workspace::register_project_item::<Editor>(cx);
271 workspace::register_followable_item::<Editor>(cx);
272 workspace::register_deserializable_item::<Editor>(cx);
273 cx.observe_new_views(
274 |workspace: &mut Workspace, _cx: &mut ViewContext<Workspace>| {
275 workspace.register_action(Editor::new_file);
276 workspace.register_action(Editor::new_file_in_direction);
277 },
278 )
279 .detach();
280
281 cx.on_action(move |_: &workspace::NewFile, cx| {
282 let app_state = workspace::AppState::global(cx);
283 if let Some(app_state) = app_state.upgrade() {
284 workspace::open_new(app_state, cx, |workspace, cx| {
285 Editor::new_file(workspace, &Default::default(), cx)
286 })
287 .detach();
288 }
289 });
290 cx.on_action(move |_: &workspace::NewWindow, cx| {
291 let app_state = workspace::AppState::global(cx);
292 if let Some(app_state) = app_state.upgrade() {
293 workspace::open_new(app_state, cx, |workspace, cx| {
294 Editor::new_file(workspace, &Default::default(), cx)
295 })
296 .detach();
297 }
298 });
299}
300
301pub struct SearchWithinRange;
302
303trait InvalidationRegion {
304 fn ranges(&self) -> &[Range<Anchor>];
305}
306
307#[derive(Clone, Debug, PartialEq)]
308pub enum SelectPhase {
309 Begin {
310 position: DisplayPoint,
311 add: bool,
312 click_count: usize,
313 },
314 BeginColumnar {
315 position: DisplayPoint,
316 reset: bool,
317 goal_column: u32,
318 },
319 Extend {
320 position: DisplayPoint,
321 click_count: usize,
322 },
323 Update {
324 position: DisplayPoint,
325 goal_column: u32,
326 scroll_delta: gpui::Point<f32>,
327 },
328 End,
329}
330
331#[derive(Clone, Debug)]
332pub enum SelectMode {
333 Character,
334 Word(Range<Anchor>),
335 Line(Range<Anchor>),
336 All,
337}
338
339#[derive(Copy, Clone, PartialEq, Eq, Debug)]
340pub enum EditorMode {
341 SingleLine { auto_width: bool },
342 AutoHeight { max_lines: usize },
343 Full,
344}
345
346#[derive(Clone, Debug)]
347pub enum SoftWrap {
348 None,
349 PreferLine,
350 EditorWidth,
351 Column(u32),
352}
353
354#[derive(Clone)]
355pub struct EditorStyle {
356 pub background: Hsla,
357 pub local_player: PlayerColor,
358 pub text: TextStyle,
359 pub scrollbar_width: Pixels,
360 pub syntax: Arc<SyntaxTheme>,
361 pub status: StatusColors,
362 pub inlay_hints_style: HighlightStyle,
363 pub suggestions_style: HighlightStyle,
364}
365
366impl Default for EditorStyle {
367 fn default() -> Self {
368 Self {
369 background: Hsla::default(),
370 local_player: PlayerColor::default(),
371 text: TextStyle::default(),
372 scrollbar_width: Pixels::default(),
373 syntax: Default::default(),
374 // HACK: Status colors don't have a real default.
375 // We should look into removing the status colors from the editor
376 // style and retrieve them directly from the theme.
377 status: StatusColors::dark(),
378 inlay_hints_style: HighlightStyle::default(),
379 suggestions_style: HighlightStyle::default(),
380 }
381 }
382}
383
384type CompletionId = usize;
385
386#[derive(Copy, Clone, Eq, PartialEq, PartialOrd, Ord, Debug, Default)]
387struct EditorActionId(usize);
388
389impl EditorActionId {
390 pub fn post_inc(&mut self) -> Self {
391 let answer = self.0;
392
393 *self = Self(answer + 1);
394
395 Self(answer)
396 }
397}
398
399// type GetFieldEditorTheme = dyn Fn(&theme::Theme) -> theme::FieldEditor;
400// type OverrideTextStyle = dyn Fn(&EditorStyle) -> Option<HighlightStyle>;
401
402type BackgroundHighlight = (fn(&ThemeColors) -> Hsla, Arc<[Range<Anchor>]>);
403type GutterHighlight = (fn(&AppContext) -> Hsla, Arc<[Range<Anchor>]>);
404
405struct ScrollbarMarkerState {
406 scrollbar_size: Size<Pixels>,
407 dirty: bool,
408 markers: Arc<[PaintQuad]>,
409 pending_refresh: Option<Task<Result<()>>>,
410}
411
412impl ScrollbarMarkerState {
413 fn should_refresh(&self, scrollbar_size: Size<Pixels>) -> bool {
414 self.pending_refresh.is_none() && (self.scrollbar_size != scrollbar_size || self.dirty)
415 }
416}
417
418impl Default for ScrollbarMarkerState {
419 fn default() -> Self {
420 Self {
421 scrollbar_size: Size::default(),
422 dirty: false,
423 markers: Arc::from([]),
424 pending_refresh: None,
425 }
426 }
427}
428
429#[derive(Clone, Debug)]
430struct RunnableTasks {
431 templates: Vec<(TaskSourceKind, TaskTemplate)>,
432 offset: MultiBufferOffset,
433 // We need the column at which the task context evaluation should take place (when we're spawning it via gutter).
434 column: u32,
435 // Values of all named captures, including those starting with '_'
436 extra_variables: HashMap<String, String>,
437 // Full range of the tagged region. We use it to determine which `extra_variables` to grab for context resolution in e.g. a modal.
438 context_range: Range<BufferOffset>,
439}
440
441#[derive(Clone)]
442struct ResolvedTasks {
443 templates: SmallVec<[(TaskSourceKind, ResolvedTask); 1]>,
444 position: Anchor,
445}
446#[derive(Copy, Clone, Debug)]
447struct MultiBufferOffset(usize);
448#[derive(Copy, Clone, Debug, PartialEq, PartialOrd)]
449struct BufferOffset(usize);
450/// Zed's primary text input `View`, allowing users to edit a [`MultiBuffer`]
451///
452/// See the [module level documentation](self) for more information.
453pub struct Editor {
454 focus_handle: FocusHandle,
455 last_focused_descendant: Option<WeakFocusHandle>,
456 /// The text buffer being edited
457 buffer: Model<MultiBuffer>,
458 /// Map of how text in the buffer should be displayed.
459 /// Handles soft wraps, folds, fake inlay text insertions, etc.
460 pub display_map: Model<DisplayMap>,
461 pub selections: SelectionsCollection,
462 pub scroll_manager: ScrollManager,
463 /// When inline assist editors are linked, they all render cursors because
464 /// typing enters text into each of them, even the ones that aren't focused.
465 pub(crate) show_cursor_when_unfocused: bool,
466 columnar_selection_tail: Option<Anchor>,
467 add_selections_state: Option<AddSelectionsState>,
468 select_next_state: Option<SelectNextState>,
469 select_prev_state: Option<SelectNextState>,
470 selection_history: SelectionHistory,
471 autoclose_regions: Vec<AutocloseRegion>,
472 snippet_stack: InvalidationStack<SnippetState>,
473 select_larger_syntax_node_stack: Vec<Box<[Selection<usize>]>>,
474 ime_transaction: Option<TransactionId>,
475 active_diagnostics: Option<ActiveDiagnosticGroup>,
476 soft_wrap_mode_override: Option<language_settings::SoftWrap>,
477 project: Option<Model<Project>>,
478 completion_provider: Option<Box<dyn CompletionProvider>>,
479 collaboration_hub: Option<Box<dyn CollaborationHub>>,
480 blink_manager: Model<BlinkManager>,
481 show_cursor_names: bool,
482 hovered_cursors: HashMap<HoveredCursor, Task<()>>,
483 pub show_local_selections: bool,
484 mode: EditorMode,
485 show_breadcrumbs: bool,
486 show_gutter: bool,
487 show_line_numbers: Option<bool>,
488 show_git_diff_gutter: Option<bool>,
489 show_code_actions: Option<bool>,
490 show_runnables: Option<bool>,
491 show_wrap_guides: Option<bool>,
492 show_indent_guides: Option<bool>,
493 placeholder_text: Option<Arc<str>>,
494 highlight_order: usize,
495 highlighted_rows: HashMap<TypeId, Vec<RowHighlight>>,
496 background_highlights: TreeMap<TypeId, BackgroundHighlight>,
497 gutter_highlights: TreeMap<TypeId, GutterHighlight>,
498 scrollbar_marker_state: ScrollbarMarkerState,
499 active_indent_guides_state: ActiveIndentGuidesState,
500 nav_history: Option<ItemNavHistory>,
501 context_menu: RwLock<Option<ContextMenu>>,
502 mouse_context_menu: Option<MouseContextMenu>,
503 completion_tasks: Vec<(CompletionId, Task<Option<()>>)>,
504 find_all_references_task_sources: Vec<Anchor>,
505 next_completion_id: CompletionId,
506 completion_documentation_pre_resolve_debounce: DebouncedDelay,
507 available_code_actions: Option<(Location, Arc<[CodeAction]>)>,
508 code_actions_task: Option<Task<()>>,
509 document_highlights_task: Option<Task<()>>,
510 linked_editing_range_task: Option<Task<Option<()>>>,
511 linked_edit_ranges: linked_editing_ranges::LinkedEditingRanges,
512 pending_rename: Option<RenameState>,
513 searchable: bool,
514 cursor_shape: CursorShape,
515 current_line_highlight: Option<CurrentLineHighlight>,
516 collapse_matches: bool,
517 autoindent_mode: Option<AutoindentMode>,
518 workspace: Option<(WeakView<Workspace>, Option<WorkspaceId>)>,
519 keymap_context_layers: BTreeMap<TypeId, KeyContext>,
520 input_enabled: bool,
521 use_modal_editing: bool,
522 read_only: bool,
523 leader_peer_id: Option<PeerId>,
524 remote_id: Option<ViewId>,
525 hover_state: HoverState,
526 gutter_hovered: bool,
527 hovered_link_state: Option<HoveredLinkState>,
528 inline_completion_provider: Option<RegisteredInlineCompletionProvider>,
529 active_inline_completion: Option<Inlay>,
530 show_inline_completions: bool,
531 inlay_hint_cache: InlayHintCache,
532 expanded_hunks: ExpandedHunks,
533 next_inlay_id: usize,
534 _subscriptions: Vec<Subscription>,
535 pixel_position_of_newest_cursor: Option<gpui::Point<Pixels>>,
536 gutter_dimensions: GutterDimensions,
537 pub vim_replace_map: HashMap<Range<usize>, String>,
538 style: Option<EditorStyle>,
539 next_editor_action_id: EditorActionId,
540 editor_actions: Rc<RefCell<BTreeMap<EditorActionId, Box<dyn Fn(&mut ViewContext<Self>)>>>>,
541 use_autoclose: bool,
542 use_auto_surround: bool,
543 auto_replace_emoji_shortcode: bool,
544 show_git_blame_gutter: bool,
545 show_git_blame_inline: bool,
546 show_git_blame_inline_delay_task: Option<Task<()>>,
547 git_blame_inline_enabled: bool,
548 show_selection_menu: Option<bool>,
549 blame: Option<Model<GitBlame>>,
550 blame_subscription: Option<Subscription>,
551 custom_context_menu: Option<
552 Box<
553 dyn 'static
554 + Fn(&mut Self, DisplayPoint, &mut ViewContext<Self>) -> Option<View<ui::ContextMenu>>,
555 >,
556 >,
557 last_bounds: Option<Bounds<Pixels>>,
558 expect_bounds_change: Option<Bounds<Pixels>>,
559 tasks: BTreeMap<(BufferId, BufferRow), RunnableTasks>,
560 tasks_update_task: Option<Task<()>>,
561 previous_search_ranges: Option<Arc<[Range<Anchor>]>>,
562 file_header_size: u8,
563 breadcrumb_header: Option<String>,
564}
565
566#[derive(Clone)]
567pub struct EditorSnapshot {
568 pub mode: EditorMode,
569 show_gutter: bool,
570 show_line_numbers: Option<bool>,
571 show_git_diff_gutter: Option<bool>,
572 show_code_actions: Option<bool>,
573 show_runnables: Option<bool>,
574 render_git_blame_gutter: bool,
575 pub display_snapshot: DisplaySnapshot,
576 pub placeholder_text: Option<Arc<str>>,
577 is_focused: bool,
578 scroll_anchor: ScrollAnchor,
579 ongoing_scroll: OngoingScroll,
580 current_line_highlight: CurrentLineHighlight,
581 gutter_hovered: bool,
582}
583
584const GIT_BLAME_GUTTER_WIDTH_CHARS: f32 = 53.;
585
586#[derive(Debug, Clone, Copy)]
587pub struct GutterDimensions {
588 pub left_padding: Pixels,
589 pub right_padding: Pixels,
590 pub width: Pixels,
591 pub margin: Pixels,
592 pub git_blame_entries_width: Option<Pixels>,
593}
594
595impl GutterDimensions {
596 /// The full width of the space taken up by the gutter.
597 pub fn full_width(&self) -> Pixels {
598 self.margin + self.width
599 }
600
601 /// The width of the space reserved for the fold indicators,
602 /// use alongside 'justify_end' and `gutter_width` to
603 /// right align content with the line numbers
604 pub fn fold_area_width(&self) -> Pixels {
605 self.margin + self.right_padding
606 }
607}
608
609impl Default for GutterDimensions {
610 fn default() -> Self {
611 Self {
612 left_padding: Pixels::ZERO,
613 right_padding: Pixels::ZERO,
614 width: Pixels::ZERO,
615 margin: Pixels::ZERO,
616 git_blame_entries_width: None,
617 }
618 }
619}
620
621#[derive(Debug)]
622pub struct RemoteSelection {
623 pub replica_id: ReplicaId,
624 pub selection: Selection<Anchor>,
625 pub cursor_shape: CursorShape,
626 pub peer_id: PeerId,
627 pub line_mode: bool,
628 pub participant_index: Option<ParticipantIndex>,
629 pub user_name: Option<SharedString>,
630}
631
632#[derive(Clone, Debug)]
633struct SelectionHistoryEntry {
634 selections: Arc<[Selection<Anchor>]>,
635 select_next_state: Option<SelectNextState>,
636 select_prev_state: Option<SelectNextState>,
637 add_selections_state: Option<AddSelectionsState>,
638}
639
640enum SelectionHistoryMode {
641 Normal,
642 Undoing,
643 Redoing,
644}
645
646#[derive(Clone, PartialEq, Eq, Hash)]
647struct HoveredCursor {
648 replica_id: u16,
649 selection_id: usize,
650}
651
652impl Default for SelectionHistoryMode {
653 fn default() -> Self {
654 Self::Normal
655 }
656}
657
658#[derive(Default)]
659struct SelectionHistory {
660 #[allow(clippy::type_complexity)]
661 selections_by_transaction:
662 HashMap<TransactionId, (Arc<[Selection<Anchor>]>, Option<Arc<[Selection<Anchor>]>>)>,
663 mode: SelectionHistoryMode,
664 undo_stack: VecDeque<SelectionHistoryEntry>,
665 redo_stack: VecDeque<SelectionHistoryEntry>,
666}
667
668impl SelectionHistory {
669 fn insert_transaction(
670 &mut self,
671 transaction_id: TransactionId,
672 selections: Arc<[Selection<Anchor>]>,
673 ) {
674 self.selections_by_transaction
675 .insert(transaction_id, (selections, None));
676 }
677
678 #[allow(clippy::type_complexity)]
679 fn transaction(
680 &self,
681 transaction_id: TransactionId,
682 ) -> Option<&(Arc<[Selection<Anchor>]>, Option<Arc<[Selection<Anchor>]>>)> {
683 self.selections_by_transaction.get(&transaction_id)
684 }
685
686 #[allow(clippy::type_complexity)]
687 fn transaction_mut(
688 &mut self,
689 transaction_id: TransactionId,
690 ) -> Option<&mut (Arc<[Selection<Anchor>]>, Option<Arc<[Selection<Anchor>]>>)> {
691 self.selections_by_transaction.get_mut(&transaction_id)
692 }
693
694 fn push(&mut self, entry: SelectionHistoryEntry) {
695 if !entry.selections.is_empty() {
696 match self.mode {
697 SelectionHistoryMode::Normal => {
698 self.push_undo(entry);
699 self.redo_stack.clear();
700 }
701 SelectionHistoryMode::Undoing => self.push_redo(entry),
702 SelectionHistoryMode::Redoing => self.push_undo(entry),
703 }
704 }
705 }
706
707 fn push_undo(&mut self, entry: SelectionHistoryEntry) {
708 if self
709 .undo_stack
710 .back()
711 .map_or(true, |e| e.selections != entry.selections)
712 {
713 self.undo_stack.push_back(entry);
714 if self.undo_stack.len() > MAX_SELECTION_HISTORY_LEN {
715 self.undo_stack.pop_front();
716 }
717 }
718 }
719
720 fn push_redo(&mut self, entry: SelectionHistoryEntry) {
721 if self
722 .redo_stack
723 .back()
724 .map_or(true, |e| e.selections != entry.selections)
725 {
726 self.redo_stack.push_back(entry);
727 if self.redo_stack.len() > MAX_SELECTION_HISTORY_LEN {
728 self.redo_stack.pop_front();
729 }
730 }
731 }
732}
733
734struct RowHighlight {
735 index: usize,
736 range: RangeInclusive<Anchor>,
737 color: Option<Hsla>,
738 should_autoscroll: bool,
739}
740
741#[derive(Clone, Debug)]
742struct AddSelectionsState {
743 above: bool,
744 stack: Vec<usize>,
745}
746
747#[derive(Clone)]
748struct SelectNextState {
749 query: AhoCorasick,
750 wordwise: bool,
751 done: bool,
752}
753
754impl std::fmt::Debug for SelectNextState {
755 fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
756 f.debug_struct(std::any::type_name::<Self>())
757 .field("wordwise", &self.wordwise)
758 .field("done", &self.done)
759 .finish()
760 }
761}
762
763#[derive(Debug)]
764struct AutocloseRegion {
765 selection_id: usize,
766 range: Range<Anchor>,
767 pair: BracketPair,
768}
769
770#[derive(Debug)]
771struct SnippetState {
772 ranges: Vec<Vec<Range<Anchor>>>,
773 active_index: usize,
774}
775
776#[doc(hidden)]
777pub struct RenameState {
778 pub range: Range<Anchor>,
779 pub old_name: Arc<str>,
780 pub editor: View<Editor>,
781 block_id: BlockId,
782}
783
784struct InvalidationStack<T>(Vec<T>);
785
786struct RegisteredInlineCompletionProvider {
787 provider: Arc<dyn InlineCompletionProviderHandle>,
788 _subscription: Subscription,
789}
790
791enum ContextMenu {
792 Completions(CompletionsMenu),
793 CodeActions(CodeActionsMenu),
794}
795
796impl ContextMenu {
797 fn select_first(
798 &mut self,
799 project: Option<&Model<Project>>,
800 cx: &mut ViewContext<Editor>,
801 ) -> bool {
802 if self.visible() {
803 match self {
804 ContextMenu::Completions(menu) => menu.select_first(project, cx),
805 ContextMenu::CodeActions(menu) => menu.select_first(cx),
806 }
807 true
808 } else {
809 false
810 }
811 }
812
813 fn select_prev(
814 &mut self,
815 project: Option<&Model<Project>>,
816 cx: &mut ViewContext<Editor>,
817 ) -> bool {
818 if self.visible() {
819 match self {
820 ContextMenu::Completions(menu) => menu.select_prev(project, cx),
821 ContextMenu::CodeActions(menu) => menu.select_prev(cx),
822 }
823 true
824 } else {
825 false
826 }
827 }
828
829 fn select_next(
830 &mut self,
831 project: Option<&Model<Project>>,
832 cx: &mut ViewContext<Editor>,
833 ) -> bool {
834 if self.visible() {
835 match self {
836 ContextMenu::Completions(menu) => menu.select_next(project, cx),
837 ContextMenu::CodeActions(menu) => menu.select_next(cx),
838 }
839 true
840 } else {
841 false
842 }
843 }
844
845 fn select_last(
846 &mut self,
847 project: Option<&Model<Project>>,
848 cx: &mut ViewContext<Editor>,
849 ) -> bool {
850 if self.visible() {
851 match self {
852 ContextMenu::Completions(menu) => menu.select_last(project, cx),
853 ContextMenu::CodeActions(menu) => menu.select_last(cx),
854 }
855 true
856 } else {
857 false
858 }
859 }
860
861 fn visible(&self) -> bool {
862 match self {
863 ContextMenu::Completions(menu) => menu.visible(),
864 ContextMenu::CodeActions(menu) => menu.visible(),
865 }
866 }
867
868 fn render(
869 &self,
870 cursor_position: DisplayPoint,
871 style: &EditorStyle,
872 max_height: Pixels,
873 workspace: Option<WeakView<Workspace>>,
874 cx: &mut ViewContext<Editor>,
875 ) -> (ContextMenuOrigin, AnyElement) {
876 match self {
877 ContextMenu::Completions(menu) => (
878 ContextMenuOrigin::EditorPoint(cursor_position),
879 menu.render(style, max_height, workspace, cx),
880 ),
881 ContextMenu::CodeActions(menu) => menu.render(cursor_position, style, max_height, cx),
882 }
883 }
884}
885
886enum ContextMenuOrigin {
887 EditorPoint(DisplayPoint),
888 GutterIndicator(DisplayRow),
889}
890
891#[derive(Clone)]
892struct CompletionsMenu {
893 id: CompletionId,
894 initial_position: Anchor,
895 buffer: Model<Buffer>,
896 completions: Arc<RwLock<Box<[Completion]>>>,
897 match_candidates: Arc<[StringMatchCandidate]>,
898 matches: Arc<[StringMatch]>,
899 selected_item: usize,
900 scroll_handle: UniformListScrollHandle,
901 selected_completion_documentation_resolve_debounce: Arc<Mutex<DebouncedDelay>>,
902}
903
904impl CompletionsMenu {
905 fn select_first(&mut self, project: Option<&Model<Project>>, cx: &mut ViewContext<Editor>) {
906 self.selected_item = 0;
907 self.scroll_handle.scroll_to_item(self.selected_item);
908 self.attempt_resolve_selected_completion_documentation(project, cx);
909 cx.notify();
910 }
911
912 fn select_prev(&mut self, project: Option<&Model<Project>>, cx: &mut ViewContext<Editor>) {
913 if self.selected_item > 0 {
914 self.selected_item -= 1;
915 } else {
916 self.selected_item = self.matches.len() - 1;
917 }
918 self.scroll_handle.scroll_to_item(self.selected_item);
919 self.attempt_resolve_selected_completion_documentation(project, cx);
920 cx.notify();
921 }
922
923 fn select_next(&mut self, project: Option<&Model<Project>>, cx: &mut ViewContext<Editor>) {
924 if self.selected_item + 1 < self.matches.len() {
925 self.selected_item += 1;
926 } else {
927 self.selected_item = 0;
928 }
929 self.scroll_handle.scroll_to_item(self.selected_item);
930 self.attempt_resolve_selected_completion_documentation(project, cx);
931 cx.notify();
932 }
933
934 fn select_last(&mut self, project: Option<&Model<Project>>, cx: &mut ViewContext<Editor>) {
935 self.selected_item = self.matches.len() - 1;
936 self.scroll_handle.scroll_to_item(self.selected_item);
937 self.attempt_resolve_selected_completion_documentation(project, cx);
938 cx.notify();
939 }
940
941 fn pre_resolve_completion_documentation(
942 buffer: Model<Buffer>,
943 completions: Arc<RwLock<Box<[Completion]>>>,
944 matches: Arc<[StringMatch]>,
945 editor: &Editor,
946 cx: &mut ViewContext<Editor>,
947 ) -> Task<()> {
948 let settings = EditorSettings::get_global(cx);
949 if !settings.show_completion_documentation {
950 return Task::ready(());
951 }
952
953 let Some(provider) = editor.completion_provider.as_ref() else {
954 return Task::ready(());
955 };
956
957 let resolve_task = provider.resolve_completions(
958 buffer,
959 matches.iter().map(|m| m.candidate_id).collect(),
960 completions.clone(),
961 cx,
962 );
963
964 return cx.spawn(move |this, mut cx| async move {
965 if let Some(true) = resolve_task.await.log_err() {
966 this.update(&mut cx, |_, cx| cx.notify()).ok();
967 }
968 });
969 }
970
971 fn attempt_resolve_selected_completion_documentation(
972 &mut self,
973 project: Option<&Model<Project>>,
974 cx: &mut ViewContext<Editor>,
975 ) {
976 let settings = EditorSettings::get_global(cx);
977 if !settings.show_completion_documentation {
978 return;
979 }
980
981 let completion_index = self.matches[self.selected_item].candidate_id;
982 let Some(project) = project else {
983 return;
984 };
985
986 let resolve_task = project.update(cx, |project, cx| {
987 project.resolve_completions(
988 self.buffer.clone(),
989 vec![completion_index],
990 self.completions.clone(),
991 cx,
992 )
993 });
994
995 let delay_ms =
996 EditorSettings::get_global(cx).completion_documentation_secondary_query_debounce;
997 let delay = Duration::from_millis(delay_ms);
998
999 self.selected_completion_documentation_resolve_debounce
1000 .lock()
1001 .fire_new(delay, cx, |_, cx| {
1002 cx.spawn(move |this, mut cx| async move {
1003 if let Some(true) = resolve_task.await.log_err() {
1004 this.update(&mut cx, |_, cx| cx.notify()).ok();
1005 }
1006 })
1007 });
1008 }
1009
1010 fn visible(&self) -> bool {
1011 !self.matches.is_empty()
1012 }
1013
1014 fn render(
1015 &self,
1016 style: &EditorStyle,
1017 max_height: Pixels,
1018 workspace: Option<WeakView<Workspace>>,
1019 cx: &mut ViewContext<Editor>,
1020 ) -> AnyElement {
1021 let settings = EditorSettings::get_global(cx);
1022 let show_completion_documentation = settings.show_completion_documentation;
1023
1024 let widest_completion_ix = self
1025 .matches
1026 .iter()
1027 .enumerate()
1028 .max_by_key(|(_, mat)| {
1029 let completions = self.completions.read();
1030 let completion = &completions[mat.candidate_id];
1031 let documentation = &completion.documentation;
1032
1033 let mut len = completion.label.text.chars().count();
1034 if let Some(Documentation::SingleLine(text)) = documentation {
1035 if show_completion_documentation {
1036 len += text.chars().count();
1037 }
1038 }
1039
1040 len
1041 })
1042 .map(|(ix, _)| ix);
1043
1044 let completions = self.completions.clone();
1045 let matches = self.matches.clone();
1046 let selected_item = self.selected_item;
1047 let style = style.clone();
1048
1049 let multiline_docs = if show_completion_documentation {
1050 let mat = &self.matches[selected_item];
1051 let multiline_docs = match &self.completions.read()[mat.candidate_id].documentation {
1052 Some(Documentation::MultiLinePlainText(text)) => {
1053 Some(div().child(SharedString::from(text.clone())))
1054 }
1055 Some(Documentation::MultiLineMarkdown(parsed)) if !parsed.text.is_empty() => {
1056 Some(div().child(render_parsed_markdown(
1057 "completions_markdown",
1058 parsed,
1059 &style,
1060 workspace,
1061 cx,
1062 )))
1063 }
1064 _ => None,
1065 };
1066 multiline_docs.map(|div| {
1067 div.id("multiline_docs")
1068 .max_h(max_height)
1069 .flex_1()
1070 .px_1p5()
1071 .py_1()
1072 .min_w(px(260.))
1073 .max_w(px(640.))
1074 .w(px(500.))
1075 .overflow_y_scroll()
1076 .occlude()
1077 })
1078 } else {
1079 None
1080 };
1081
1082 let list = uniform_list(
1083 cx.view().clone(),
1084 "completions",
1085 matches.len(),
1086 move |_editor, range, cx| {
1087 let start_ix = range.start;
1088 let completions_guard = completions.read();
1089
1090 matches[range]
1091 .iter()
1092 .enumerate()
1093 .map(|(ix, mat)| {
1094 let item_ix = start_ix + ix;
1095 let candidate_id = mat.candidate_id;
1096 let completion = &completions_guard[candidate_id];
1097
1098 let documentation = if show_completion_documentation {
1099 &completion.documentation
1100 } else {
1101 &None
1102 };
1103
1104 let highlights = gpui::combine_highlights(
1105 mat.ranges().map(|range| (range, FontWeight::BOLD.into())),
1106 styled_runs_for_code_label(&completion.label, &style.syntax).map(
1107 |(range, mut highlight)| {
1108 // Ignore font weight for syntax highlighting, as we'll use it
1109 // for fuzzy matches.
1110 highlight.font_weight = None;
1111
1112 if completion.lsp_completion.deprecated.unwrap_or(false) {
1113 highlight.strikethrough = Some(StrikethroughStyle {
1114 thickness: 1.0.into(),
1115 ..Default::default()
1116 });
1117 highlight.color = Some(cx.theme().colors().text_muted);
1118 }
1119
1120 (range, highlight)
1121 },
1122 ),
1123 );
1124 let completion_label = StyledText::new(completion.label.text.clone())
1125 .with_highlights(&style.text, highlights);
1126 let documentation_label =
1127 if let Some(Documentation::SingleLine(text)) = documentation {
1128 if text.trim().is_empty() {
1129 None
1130 } else {
1131 Some(
1132 Label::new(text.clone())
1133 .ml_4()
1134 .size(LabelSize::Small)
1135 .color(Color::Muted),
1136 )
1137 }
1138 } else {
1139 None
1140 };
1141
1142 div().min_w(px(220.)).max_w(px(540.)).child(
1143 ListItem::new(mat.candidate_id)
1144 .inset(true)
1145 .selected(item_ix == selected_item)
1146 .on_click(cx.listener(move |editor, _event, cx| {
1147 cx.stop_propagation();
1148 if let Some(task) = editor.confirm_completion(
1149 &ConfirmCompletion {
1150 item_ix: Some(item_ix),
1151 },
1152 cx,
1153 ) {
1154 task.detach_and_log_err(cx)
1155 }
1156 }))
1157 .child(h_flex().overflow_hidden().child(completion_label))
1158 .end_slot::<Label>(documentation_label),
1159 )
1160 })
1161 .collect()
1162 },
1163 )
1164 .occlude()
1165 .max_h(max_height)
1166 .track_scroll(self.scroll_handle.clone())
1167 .with_width_from_item(widest_completion_ix)
1168 .with_sizing_behavior(ListSizingBehavior::Infer);
1169
1170 Popover::new()
1171 .child(list)
1172 .when_some(multiline_docs, |popover, multiline_docs| {
1173 popover.aside(multiline_docs)
1174 })
1175 .into_any_element()
1176 }
1177
1178 pub async fn filter(&mut self, query: Option<&str>, executor: BackgroundExecutor) {
1179 let mut matches = if let Some(query) = query {
1180 fuzzy::match_strings(
1181 &self.match_candidates,
1182 query,
1183 query.chars().any(|c| c.is_uppercase()),
1184 100,
1185 &Default::default(),
1186 executor,
1187 )
1188 .await
1189 } else {
1190 self.match_candidates
1191 .iter()
1192 .enumerate()
1193 .map(|(candidate_id, candidate)| StringMatch {
1194 candidate_id,
1195 score: Default::default(),
1196 positions: Default::default(),
1197 string: candidate.string.clone(),
1198 })
1199 .collect()
1200 };
1201
1202 // Remove all candidates where the query's start does not match the start of any word in the candidate
1203 if let Some(query) = query {
1204 if let Some(query_start) = query.chars().next() {
1205 matches.retain(|string_match| {
1206 split_words(&string_match.string).any(|word| {
1207 // Check that the first codepoint of the word as lowercase matches the first
1208 // codepoint of the query as lowercase
1209 word.chars()
1210 .flat_map(|codepoint| codepoint.to_lowercase())
1211 .zip(query_start.to_lowercase())
1212 .all(|(word_cp, query_cp)| word_cp == query_cp)
1213 })
1214 });
1215 }
1216 }
1217
1218 let completions = self.completions.read();
1219 matches.sort_unstable_by_key(|mat| {
1220 // We do want to strike a balance here between what the language server tells us
1221 // to sort by (the sort_text) and what are "obvious" good matches (i.e. when you type
1222 // `Creat` and there is a local variable called `CreateComponent`).
1223 // So what we do is: we bucket all matches into two buckets
1224 // - Strong matches
1225 // - Weak matches
1226 // Strong matches are the ones with a high fuzzy-matcher score (the "obvious" matches)
1227 // and the Weak matches are the rest.
1228 //
1229 // For the strong matches, we sort by the language-servers score first and for the weak
1230 // matches, we prefer our fuzzy finder first.
1231 //
1232 // The thinking behind that: it's useless to take the sort_text the language-server gives
1233 // us into account when it's obviously a bad match.
1234
1235 #[derive(PartialEq, Eq, PartialOrd, Ord)]
1236 enum MatchScore<'a> {
1237 Strong {
1238 sort_text: Option<&'a str>,
1239 score: Reverse<OrderedFloat<f64>>,
1240 sort_key: (usize, &'a str),
1241 },
1242 Weak {
1243 score: Reverse<OrderedFloat<f64>>,
1244 sort_text: Option<&'a str>,
1245 sort_key: (usize, &'a str),
1246 },
1247 }
1248
1249 let completion = &completions[mat.candidate_id];
1250 let sort_key = completion.sort_key();
1251 let sort_text = completion.lsp_completion.sort_text.as_deref();
1252 let score = Reverse(OrderedFloat(mat.score));
1253
1254 if mat.score >= 0.2 {
1255 MatchScore::Strong {
1256 sort_text,
1257 score,
1258 sort_key,
1259 }
1260 } else {
1261 MatchScore::Weak {
1262 score,
1263 sort_text,
1264 sort_key,
1265 }
1266 }
1267 });
1268
1269 for mat in &mut matches {
1270 let completion = &completions[mat.candidate_id];
1271 mat.string.clone_from(&completion.label.text);
1272 for position in &mut mat.positions {
1273 *position += completion.label.filter_range.start;
1274 }
1275 }
1276 drop(completions);
1277
1278 self.matches = matches.into();
1279 self.selected_item = 0;
1280 }
1281}
1282
1283#[derive(Clone)]
1284struct CodeActionContents {
1285 tasks: Option<Arc<ResolvedTasks>>,
1286 actions: Option<Arc<[CodeAction]>>,
1287}
1288
1289impl CodeActionContents {
1290 fn len(&self) -> usize {
1291 match (&self.tasks, &self.actions) {
1292 (Some(tasks), Some(actions)) => actions.len() + tasks.templates.len(),
1293 (Some(tasks), None) => tasks.templates.len(),
1294 (None, Some(actions)) => actions.len(),
1295 (None, None) => 0,
1296 }
1297 }
1298
1299 fn is_empty(&self) -> bool {
1300 match (&self.tasks, &self.actions) {
1301 (Some(tasks), Some(actions)) => actions.is_empty() && tasks.templates.is_empty(),
1302 (Some(tasks), None) => tasks.templates.is_empty(),
1303 (None, Some(actions)) => actions.is_empty(),
1304 (None, None) => true,
1305 }
1306 }
1307
1308 fn iter(&self) -> impl Iterator<Item = CodeActionsItem> + '_ {
1309 self.tasks
1310 .iter()
1311 .flat_map(|tasks| {
1312 tasks
1313 .templates
1314 .iter()
1315 .map(|(kind, task)| CodeActionsItem::Task(kind.clone(), task.clone()))
1316 })
1317 .chain(self.actions.iter().flat_map(|actions| {
1318 actions
1319 .iter()
1320 .map(|action| CodeActionsItem::CodeAction(action.clone()))
1321 }))
1322 }
1323 fn get(&self, index: usize) -> Option<CodeActionsItem> {
1324 match (&self.tasks, &self.actions) {
1325 (Some(tasks), Some(actions)) => {
1326 if index < tasks.templates.len() {
1327 tasks
1328 .templates
1329 .get(index)
1330 .cloned()
1331 .map(|(kind, task)| CodeActionsItem::Task(kind, task))
1332 } else {
1333 actions
1334 .get(index - tasks.templates.len())
1335 .cloned()
1336 .map(CodeActionsItem::CodeAction)
1337 }
1338 }
1339 (Some(tasks), None) => tasks
1340 .templates
1341 .get(index)
1342 .cloned()
1343 .map(|(kind, task)| CodeActionsItem::Task(kind, task)),
1344 (None, Some(actions)) => actions.get(index).cloned().map(CodeActionsItem::CodeAction),
1345 (None, None) => None,
1346 }
1347 }
1348}
1349
1350#[allow(clippy::large_enum_variant)]
1351#[derive(Clone)]
1352enum CodeActionsItem {
1353 Task(TaskSourceKind, ResolvedTask),
1354 CodeAction(CodeAction),
1355}
1356
1357impl CodeActionsItem {
1358 fn as_task(&self) -> Option<&ResolvedTask> {
1359 let Self::Task(_, task) = self else {
1360 return None;
1361 };
1362 Some(task)
1363 }
1364 fn as_code_action(&self) -> Option<&CodeAction> {
1365 let Self::CodeAction(action) = self else {
1366 return None;
1367 };
1368 Some(action)
1369 }
1370 fn label(&self) -> String {
1371 match self {
1372 Self::CodeAction(action) => action.lsp_action.title.clone(),
1373 Self::Task(_, task) => task.resolved_label.clone(),
1374 }
1375 }
1376}
1377
1378struct CodeActionsMenu {
1379 actions: CodeActionContents,
1380 buffer: Model<Buffer>,
1381 selected_item: usize,
1382 scroll_handle: UniformListScrollHandle,
1383 deployed_from_indicator: Option<DisplayRow>,
1384}
1385
1386impl CodeActionsMenu {
1387 fn select_first(&mut self, cx: &mut ViewContext<Editor>) {
1388 self.selected_item = 0;
1389 self.scroll_handle.scroll_to_item(self.selected_item);
1390 cx.notify()
1391 }
1392
1393 fn select_prev(&mut self, cx: &mut ViewContext<Editor>) {
1394 if self.selected_item > 0 {
1395 self.selected_item -= 1;
1396 } else {
1397 self.selected_item = self.actions.len() - 1;
1398 }
1399 self.scroll_handle.scroll_to_item(self.selected_item);
1400 cx.notify();
1401 }
1402
1403 fn select_next(&mut self, cx: &mut ViewContext<Editor>) {
1404 if self.selected_item + 1 < self.actions.len() {
1405 self.selected_item += 1;
1406 } else {
1407 self.selected_item = 0;
1408 }
1409 self.scroll_handle.scroll_to_item(self.selected_item);
1410 cx.notify();
1411 }
1412
1413 fn select_last(&mut self, cx: &mut ViewContext<Editor>) {
1414 self.selected_item = self.actions.len() - 1;
1415 self.scroll_handle.scroll_to_item(self.selected_item);
1416 cx.notify()
1417 }
1418
1419 fn visible(&self) -> bool {
1420 !self.actions.is_empty()
1421 }
1422
1423 fn render(
1424 &self,
1425 cursor_position: DisplayPoint,
1426 _style: &EditorStyle,
1427 max_height: Pixels,
1428 cx: &mut ViewContext<Editor>,
1429 ) -> (ContextMenuOrigin, AnyElement) {
1430 let actions = self.actions.clone();
1431 let selected_item = self.selected_item;
1432 let element = uniform_list(
1433 cx.view().clone(),
1434 "code_actions_menu",
1435 self.actions.len(),
1436 move |_this, range, cx| {
1437 actions
1438 .iter()
1439 .skip(range.start)
1440 .take(range.end - range.start)
1441 .enumerate()
1442 .map(|(ix, action)| {
1443 let item_ix = range.start + ix;
1444 let selected = selected_item == item_ix;
1445 let colors = cx.theme().colors();
1446 div()
1447 .px_2()
1448 .text_color(colors.text)
1449 .when(selected, |style| {
1450 style
1451 .bg(colors.element_active)
1452 .text_color(colors.text_accent)
1453 })
1454 .hover(|style| {
1455 style
1456 .bg(colors.element_hover)
1457 .text_color(colors.text_accent)
1458 })
1459 .whitespace_nowrap()
1460 .when_some(action.as_code_action(), |this, action| {
1461 this.on_mouse_down(
1462 MouseButton::Left,
1463 cx.listener(move |editor, _, cx| {
1464 cx.stop_propagation();
1465 if let Some(task) = editor.confirm_code_action(
1466 &ConfirmCodeAction {
1467 item_ix: Some(item_ix),
1468 },
1469 cx,
1470 ) {
1471 task.detach_and_log_err(cx)
1472 }
1473 }),
1474 )
1475 // TASK: It would be good to make lsp_action.title a SharedString to avoid allocating here.
1476 .child(SharedString::from(action.lsp_action.title.clone()))
1477 })
1478 .when_some(action.as_task(), |this, task| {
1479 this.on_mouse_down(
1480 MouseButton::Left,
1481 cx.listener(move |editor, _, cx| {
1482 cx.stop_propagation();
1483 if let Some(task) = editor.confirm_code_action(
1484 &ConfirmCodeAction {
1485 item_ix: Some(item_ix),
1486 },
1487 cx,
1488 ) {
1489 task.detach_and_log_err(cx)
1490 }
1491 }),
1492 )
1493 .child(SharedString::from(task.resolved_label.clone()))
1494 })
1495 })
1496 .collect()
1497 },
1498 )
1499 .elevation_1(cx)
1500 .px_2()
1501 .py_1()
1502 .max_h(max_height)
1503 .occlude()
1504 .track_scroll(self.scroll_handle.clone())
1505 .with_width_from_item(
1506 self.actions
1507 .iter()
1508 .enumerate()
1509 .max_by_key(|(_, action)| match action {
1510 CodeActionsItem::Task(_, task) => task.resolved_label.chars().count(),
1511 CodeActionsItem::CodeAction(action) => action.lsp_action.title.chars().count(),
1512 })
1513 .map(|(ix, _)| ix),
1514 )
1515 .with_sizing_behavior(ListSizingBehavior::Infer)
1516 .into_any_element();
1517
1518 let cursor_position = if let Some(row) = self.deployed_from_indicator {
1519 ContextMenuOrigin::GutterIndicator(row)
1520 } else {
1521 ContextMenuOrigin::EditorPoint(cursor_position)
1522 };
1523
1524 (cursor_position, element)
1525 }
1526}
1527
1528#[derive(Debug)]
1529struct ActiveDiagnosticGroup {
1530 primary_range: Range<Anchor>,
1531 primary_message: String,
1532 group_id: usize,
1533 blocks: HashMap<BlockId, Diagnostic>,
1534 is_valid: bool,
1535}
1536
1537#[derive(Serialize, Deserialize, Clone, Debug)]
1538pub struct ClipboardSelection {
1539 pub len: usize,
1540 pub is_entire_line: bool,
1541 pub first_line_indent: u32,
1542}
1543
1544#[derive(Debug)]
1545pub(crate) struct NavigationData {
1546 cursor_anchor: Anchor,
1547 cursor_position: Point,
1548 scroll_anchor: ScrollAnchor,
1549 scroll_top_row: u32,
1550}
1551
1552enum GotoDefinitionKind {
1553 Symbol,
1554 Type,
1555 Implementation,
1556}
1557
1558#[derive(Debug, Clone)]
1559enum InlayHintRefreshReason {
1560 Toggle(bool),
1561 SettingsChange(InlayHintSettings),
1562 NewLinesShown,
1563 BufferEdited(HashSet<Arc<Language>>),
1564 RefreshRequested,
1565 ExcerptsRemoved(Vec<ExcerptId>),
1566}
1567
1568impl InlayHintRefreshReason {
1569 fn description(&self) -> &'static str {
1570 match self {
1571 Self::Toggle(_) => "toggle",
1572 Self::SettingsChange(_) => "settings change",
1573 Self::NewLinesShown => "new lines shown",
1574 Self::BufferEdited(_) => "buffer edited",
1575 Self::RefreshRequested => "refresh requested",
1576 Self::ExcerptsRemoved(_) => "excerpts removed",
1577 }
1578 }
1579}
1580
1581impl Editor {
1582 pub fn single_line(cx: &mut ViewContext<Self>) -> Self {
1583 let buffer = cx.new_model(|cx| Buffer::local("", cx));
1584 let buffer = cx.new_model(|cx| MultiBuffer::singleton(buffer, cx));
1585 Self::new(
1586 EditorMode::SingleLine { auto_width: false },
1587 buffer,
1588 None,
1589 false,
1590 cx,
1591 )
1592 }
1593
1594 pub fn multi_line(cx: &mut ViewContext<Self>) -> Self {
1595 let buffer = cx.new_model(|cx| Buffer::local("", cx));
1596 let buffer = cx.new_model(|cx| MultiBuffer::singleton(buffer, cx));
1597 Self::new(EditorMode::Full, buffer, None, false, cx)
1598 }
1599
1600 pub fn auto_width(cx: &mut ViewContext<Self>) -> Self {
1601 let buffer = cx.new_model(|cx| Buffer::local("", cx));
1602 let buffer = cx.new_model(|cx| MultiBuffer::singleton(buffer, cx));
1603 Self::new(
1604 EditorMode::SingleLine { auto_width: true },
1605 buffer,
1606 None,
1607 false,
1608 cx,
1609 )
1610 }
1611
1612 pub fn auto_height(max_lines: usize, cx: &mut ViewContext<Self>) -> Self {
1613 let buffer = cx.new_model(|cx| Buffer::local("", cx));
1614 let buffer = cx.new_model(|cx| MultiBuffer::singleton(buffer, cx));
1615 Self::new(
1616 EditorMode::AutoHeight { max_lines },
1617 buffer,
1618 None,
1619 false,
1620 cx,
1621 )
1622 }
1623
1624 pub fn for_buffer(
1625 buffer: Model<Buffer>,
1626 project: Option<Model<Project>>,
1627 cx: &mut ViewContext<Self>,
1628 ) -> Self {
1629 let buffer = cx.new_model(|cx| MultiBuffer::singleton(buffer, cx));
1630 Self::new(EditorMode::Full, buffer, project, false, cx)
1631 }
1632
1633 pub fn for_multibuffer(
1634 buffer: Model<MultiBuffer>,
1635 project: Option<Model<Project>>,
1636 show_excerpt_controls: bool,
1637 cx: &mut ViewContext<Self>,
1638 ) -> Self {
1639 Self::new(EditorMode::Full, buffer, project, show_excerpt_controls, cx)
1640 }
1641
1642 pub fn clone(&self, cx: &mut ViewContext<Self>) -> Self {
1643 let show_excerpt_controls = self.display_map.read(cx).show_excerpt_controls();
1644 let mut clone = Self::new(
1645 self.mode,
1646 self.buffer.clone(),
1647 self.project.clone(),
1648 show_excerpt_controls,
1649 cx,
1650 );
1651 self.display_map.update(cx, |display_map, cx| {
1652 let snapshot = display_map.snapshot(cx);
1653 clone.display_map.update(cx, |display_map, cx| {
1654 display_map.set_state(&snapshot, cx);
1655 });
1656 });
1657 clone.selections.clone_state(&self.selections);
1658 clone.scroll_manager.clone_state(&self.scroll_manager);
1659 clone.searchable = self.searchable;
1660 clone
1661 }
1662
1663 pub fn new(
1664 mode: EditorMode,
1665 buffer: Model<MultiBuffer>,
1666 project: Option<Model<Project>>,
1667 show_excerpt_controls: bool,
1668 cx: &mut ViewContext<Self>,
1669 ) -> Self {
1670 let style = cx.text_style();
1671 let font_size = style.font_size.to_pixels(cx.rem_size());
1672 let editor = cx.view().downgrade();
1673 let fold_placeholder = FoldPlaceholder {
1674 constrain_width: true,
1675 render: Arc::new(move |fold_id, fold_range, cx| {
1676 let editor = editor.clone();
1677 div()
1678 .id(fold_id)
1679 .bg(cx.theme().colors().ghost_element_background)
1680 .hover(|style| style.bg(cx.theme().colors().ghost_element_hover))
1681 .active(|style| style.bg(cx.theme().colors().ghost_element_active))
1682 .rounded_sm()
1683 .size_full()
1684 .cursor_pointer()
1685 .child("⋯")
1686 .on_mouse_down(MouseButton::Left, |_, cx| cx.stop_propagation())
1687 .on_click(move |_, cx| {
1688 editor
1689 .update(cx, |editor, cx| {
1690 editor.unfold_ranges(
1691 [fold_range.start..fold_range.end],
1692 true,
1693 false,
1694 cx,
1695 );
1696 cx.stop_propagation();
1697 })
1698 .ok();
1699 })
1700 .into_any()
1701 }),
1702 merge_adjacent: true,
1703 };
1704 let file_header_size = if show_excerpt_controls { 3 } else { 2 };
1705 let display_map = cx.new_model(|cx| {
1706 DisplayMap::new(
1707 buffer.clone(),
1708 style.font(),
1709 font_size,
1710 None,
1711 show_excerpt_controls,
1712 file_header_size,
1713 MULTI_BUFFER_EXCERPT_HEADER_HEIGHT,
1714 MULTI_BUFFER_EXCERPT_FOOTER_HEIGHT,
1715 fold_placeholder,
1716 cx,
1717 )
1718 });
1719
1720 let selections = SelectionsCollection::new(display_map.clone(), buffer.clone());
1721
1722 let blink_manager = cx.new_model(|cx| BlinkManager::new(CURSOR_BLINK_INTERVAL, cx));
1723
1724 let soft_wrap_mode_override = matches!(mode, EditorMode::SingleLine { .. })
1725 .then(|| language_settings::SoftWrap::PreferLine);
1726
1727 let mut project_subscriptions = Vec::new();
1728 if mode == EditorMode::Full {
1729 if let Some(project) = project.as_ref() {
1730 if buffer.read(cx).is_singleton() {
1731 project_subscriptions.push(cx.observe(project, |_, _, cx| {
1732 cx.emit(EditorEvent::TitleChanged);
1733 }));
1734 }
1735 project_subscriptions.push(cx.subscribe(project, |editor, _, event, cx| {
1736 if let project::Event::RefreshInlayHints = event {
1737 editor.refresh_inlay_hints(InlayHintRefreshReason::RefreshRequested, cx);
1738 } else if let project::Event::SnippetEdit(id, snippet_edits) = event {
1739 if let Some(buffer) = editor.buffer.read(cx).buffer(*id) {
1740 let focus_handle = editor.focus_handle(cx);
1741 if focus_handle.is_focused(cx) {
1742 let snapshot = buffer.read(cx).snapshot();
1743 for (range, snippet) in snippet_edits {
1744 let editor_range =
1745 language::range_from_lsp(*range).to_offset(&snapshot);
1746 editor
1747 .insert_snippet(&[editor_range], snippet.clone(), cx)
1748 .ok();
1749 }
1750 }
1751 }
1752 }
1753 }));
1754 let task_inventory = project.read(cx).task_inventory().clone();
1755 project_subscriptions.push(cx.observe(&task_inventory, |editor, _, cx| {
1756 editor.tasks_update_task = Some(editor.refresh_runnables(cx));
1757 }));
1758 }
1759 }
1760
1761 let inlay_hint_settings = inlay_hint_settings(
1762 selections.newest_anchor().head(),
1763 &buffer.read(cx).snapshot(cx),
1764 cx,
1765 );
1766 let focus_handle = cx.focus_handle();
1767 cx.on_focus(&focus_handle, Self::handle_focus).detach();
1768 cx.on_focus_out(&focus_handle, Self::handle_focus_out)
1769 .detach();
1770 cx.on_blur(&focus_handle, Self::handle_blur).detach();
1771
1772 let show_indent_guides = if matches!(mode, EditorMode::SingleLine { .. }) {
1773 Some(false)
1774 } else {
1775 None
1776 };
1777
1778 let mut this = Self {
1779 focus_handle,
1780 show_cursor_when_unfocused: false,
1781 last_focused_descendant: None,
1782 buffer: buffer.clone(),
1783 display_map: display_map.clone(),
1784 selections,
1785 scroll_manager: ScrollManager::new(cx),
1786 columnar_selection_tail: None,
1787 add_selections_state: None,
1788 select_next_state: None,
1789 select_prev_state: None,
1790 selection_history: Default::default(),
1791 autoclose_regions: Default::default(),
1792 snippet_stack: Default::default(),
1793 select_larger_syntax_node_stack: Vec::new(),
1794 ime_transaction: Default::default(),
1795 active_diagnostics: None,
1796 soft_wrap_mode_override,
1797 completion_provider: project.clone().map(|project| Box::new(project) as _),
1798 collaboration_hub: project.clone().map(|project| Box::new(project) as _),
1799 project,
1800 blink_manager: blink_manager.clone(),
1801 show_local_selections: true,
1802 mode,
1803 show_breadcrumbs: EditorSettings::get_global(cx).toolbar.breadcrumbs,
1804 show_gutter: mode == EditorMode::Full,
1805 show_line_numbers: None,
1806 show_git_diff_gutter: None,
1807 show_code_actions: None,
1808 show_runnables: None,
1809 show_wrap_guides: None,
1810 show_indent_guides,
1811 placeholder_text: None,
1812 highlight_order: 0,
1813 highlighted_rows: HashMap::default(),
1814 background_highlights: Default::default(),
1815 gutter_highlights: TreeMap::default(),
1816 scrollbar_marker_state: ScrollbarMarkerState::default(),
1817 active_indent_guides_state: ActiveIndentGuidesState::default(),
1818 nav_history: None,
1819 context_menu: RwLock::new(None),
1820 mouse_context_menu: None,
1821 completion_tasks: Default::default(),
1822 find_all_references_task_sources: Vec::new(),
1823 next_completion_id: 0,
1824 completion_documentation_pre_resolve_debounce: DebouncedDelay::new(),
1825 next_inlay_id: 0,
1826 available_code_actions: Default::default(),
1827 code_actions_task: Default::default(),
1828 document_highlights_task: Default::default(),
1829 linked_editing_range_task: Default::default(),
1830 pending_rename: Default::default(),
1831 searchable: true,
1832 cursor_shape: Default::default(),
1833 current_line_highlight: None,
1834 autoindent_mode: Some(AutoindentMode::EachLine),
1835 collapse_matches: false,
1836 workspace: None,
1837 keymap_context_layers: Default::default(),
1838 input_enabled: true,
1839 use_modal_editing: mode == EditorMode::Full,
1840 read_only: false,
1841 use_autoclose: true,
1842 use_auto_surround: true,
1843 auto_replace_emoji_shortcode: false,
1844 leader_peer_id: None,
1845 remote_id: None,
1846 hover_state: Default::default(),
1847 hovered_link_state: Default::default(),
1848 inline_completion_provider: None,
1849 active_inline_completion: None,
1850 inlay_hint_cache: InlayHintCache::new(inlay_hint_settings),
1851 expanded_hunks: ExpandedHunks::default(),
1852 gutter_hovered: false,
1853 pixel_position_of_newest_cursor: None,
1854 last_bounds: None,
1855 expect_bounds_change: None,
1856 gutter_dimensions: GutterDimensions::default(),
1857 style: None,
1858 show_cursor_names: false,
1859 hovered_cursors: Default::default(),
1860 next_editor_action_id: EditorActionId::default(),
1861 editor_actions: Rc::default(),
1862 vim_replace_map: Default::default(),
1863 show_inline_completions: mode == EditorMode::Full,
1864 custom_context_menu: None,
1865 show_git_blame_gutter: false,
1866 show_git_blame_inline: false,
1867 show_selection_menu: None,
1868 show_git_blame_inline_delay_task: None,
1869 git_blame_inline_enabled: ProjectSettings::get_global(cx).git.inline_blame_enabled(),
1870 blame: None,
1871 blame_subscription: None,
1872 file_header_size,
1873 tasks: Default::default(),
1874 _subscriptions: vec![
1875 cx.observe(&buffer, Self::on_buffer_changed),
1876 cx.subscribe(&buffer, Self::on_buffer_event),
1877 cx.observe(&display_map, Self::on_display_map_changed),
1878 cx.observe(&blink_manager, |_, _, cx| cx.notify()),
1879 cx.observe_global::<SettingsStore>(Self::settings_changed),
1880 observe_buffer_font_size_adjustment(cx, |_, cx| cx.notify()),
1881 cx.observe_window_activation(|editor, cx| {
1882 let active = cx.is_window_active();
1883 editor.blink_manager.update(cx, |blink_manager, cx| {
1884 if active {
1885 blink_manager.enable(cx);
1886 } else {
1887 blink_manager.show_cursor(cx);
1888 blink_manager.disable(cx);
1889 }
1890 });
1891 }),
1892 ],
1893 tasks_update_task: None,
1894 linked_edit_ranges: Default::default(),
1895 previous_search_ranges: None,
1896 breadcrumb_header: None,
1897 };
1898 this.tasks_update_task = Some(this.refresh_runnables(cx));
1899 this._subscriptions.extend(project_subscriptions);
1900
1901 this.end_selection(cx);
1902 this.scroll_manager.show_scrollbar(cx);
1903
1904 if mode == EditorMode::Full {
1905 let should_auto_hide_scrollbars = cx.should_auto_hide_scrollbars();
1906 cx.set_global(ScrollbarAutoHide(should_auto_hide_scrollbars));
1907
1908 if this.git_blame_inline_enabled {
1909 this.git_blame_inline_enabled = true;
1910 this.start_git_blame_inline(false, cx);
1911 }
1912 }
1913
1914 this.report_editor_event("open", None, cx);
1915 this
1916 }
1917
1918 pub fn mouse_menu_is_focused(&self, cx: &mut WindowContext) -> bool {
1919 self.mouse_context_menu
1920 .as_ref()
1921 .is_some_and(|menu| menu.context_menu.focus_handle(cx).is_focused(cx))
1922 }
1923
1924 fn key_context(&self, cx: &AppContext) -> KeyContext {
1925 let mut key_context = KeyContext::new_with_defaults();
1926 key_context.add("Editor");
1927 let mode = match self.mode {
1928 EditorMode::SingleLine { .. } => "single_line",
1929 EditorMode::AutoHeight { .. } => "auto_height",
1930 EditorMode::Full => "full",
1931 };
1932
1933 if EditorSettings::get_global(cx).jupyter.enabled {
1934 key_context.add("jupyter");
1935 }
1936
1937 key_context.set("mode", mode);
1938 if self.pending_rename.is_some() {
1939 key_context.add("renaming");
1940 }
1941 if self.context_menu_visible() {
1942 match self.context_menu.read().as_ref() {
1943 Some(ContextMenu::Completions(_)) => {
1944 key_context.add("menu");
1945 key_context.add("showing_completions")
1946 }
1947 Some(ContextMenu::CodeActions(_)) => {
1948 key_context.add("menu");
1949 key_context.add("showing_code_actions")
1950 }
1951 None => {}
1952 }
1953 }
1954
1955 for layer in self.keymap_context_layers.values() {
1956 key_context.extend(layer);
1957 }
1958
1959 if let Some(extension) = self
1960 .buffer
1961 .read(cx)
1962 .as_singleton()
1963 .and_then(|buffer| buffer.read(cx).file()?.path().extension()?.to_str())
1964 {
1965 key_context.set("extension", extension.to_string());
1966 }
1967
1968 if self.has_active_inline_completion(cx) {
1969 key_context.add("copilot_suggestion");
1970 key_context.add("inline_completion");
1971 }
1972
1973 key_context
1974 }
1975
1976 pub fn new_file(
1977 workspace: &mut Workspace,
1978 _: &workspace::NewFile,
1979 cx: &mut ViewContext<Workspace>,
1980 ) {
1981 let project = workspace.project().clone();
1982 let create = project.update(cx, |project, cx| project.create_buffer(cx));
1983
1984 cx.spawn(|workspace, mut cx| async move {
1985 let buffer = create.await?;
1986 workspace.update(&mut cx, |workspace, cx| {
1987 workspace.add_item_to_active_pane(
1988 Box::new(
1989 cx.new_view(|cx| Editor::for_buffer(buffer, Some(project.clone()), cx)),
1990 ),
1991 None,
1992 cx,
1993 )
1994 })
1995 })
1996 .detach_and_prompt_err("Failed to create buffer", cx, |e, _| match e.error_code() {
1997 ErrorCode::RemoteUpgradeRequired => Some(format!(
1998 "The remote instance of Zed does not support this yet. It must be upgraded to {}",
1999 e.error_tag("required").unwrap_or("the latest version")
2000 )),
2001 _ => None,
2002 });
2003 }
2004
2005 pub fn new_file_in_direction(
2006 workspace: &mut Workspace,
2007 action: &workspace::NewFileInDirection,
2008 cx: &mut ViewContext<Workspace>,
2009 ) {
2010 let project = workspace.project().clone();
2011 let create = project.update(cx, |project, cx| project.create_buffer(cx));
2012 let direction = action.0;
2013
2014 cx.spawn(|workspace, mut cx| async move {
2015 let buffer = create.await?;
2016 workspace.update(&mut cx, move |workspace, cx| {
2017 workspace.split_item(
2018 direction,
2019 Box::new(
2020 cx.new_view(|cx| Editor::for_buffer(buffer, Some(project.clone()), cx)),
2021 ),
2022 cx,
2023 )
2024 })?;
2025 anyhow::Ok(())
2026 })
2027 .detach_and_prompt_err("Failed to create buffer", cx, |e, _| match e.error_code() {
2028 ErrorCode::RemoteUpgradeRequired => Some(format!(
2029 "The remote instance of Zed does not support this yet. It must be upgraded to {}",
2030 e.error_tag("required").unwrap_or("the latest version")
2031 )),
2032 _ => None,
2033 });
2034 }
2035
2036 pub fn replica_id(&self, cx: &AppContext) -> ReplicaId {
2037 self.buffer.read(cx).replica_id()
2038 }
2039
2040 pub fn leader_peer_id(&self) -> Option<PeerId> {
2041 self.leader_peer_id
2042 }
2043
2044 pub fn buffer(&self) -> &Model<MultiBuffer> {
2045 &self.buffer
2046 }
2047
2048 pub fn workspace(&self) -> Option<View<Workspace>> {
2049 self.workspace.as_ref()?.0.upgrade()
2050 }
2051
2052 pub fn title<'a>(&self, cx: &'a AppContext) -> Cow<'a, str> {
2053 self.buffer().read(cx).title(cx)
2054 }
2055
2056 pub fn snapshot(&mut self, cx: &mut WindowContext) -> EditorSnapshot {
2057 EditorSnapshot {
2058 mode: self.mode,
2059 show_gutter: self.show_gutter,
2060 show_line_numbers: self.show_line_numbers,
2061 show_git_diff_gutter: self.show_git_diff_gutter,
2062 show_code_actions: self.show_code_actions,
2063 show_runnables: self.show_runnables,
2064 render_git_blame_gutter: self.render_git_blame_gutter(cx),
2065 display_snapshot: self.display_map.update(cx, |map, cx| map.snapshot(cx)),
2066 scroll_anchor: self.scroll_manager.anchor(),
2067 ongoing_scroll: self.scroll_manager.ongoing_scroll(),
2068 placeholder_text: self.placeholder_text.clone(),
2069 is_focused: self.focus_handle.is_focused(cx),
2070 current_line_highlight: self
2071 .current_line_highlight
2072 .unwrap_or_else(|| EditorSettings::get_global(cx).current_line_highlight),
2073 gutter_hovered: self.gutter_hovered,
2074 }
2075 }
2076
2077 pub fn language_at<T: ToOffset>(&self, point: T, cx: &AppContext) -> Option<Arc<Language>> {
2078 self.buffer.read(cx).language_at(point, cx)
2079 }
2080
2081 pub fn file_at<T: ToOffset>(
2082 &self,
2083 point: T,
2084 cx: &AppContext,
2085 ) -> Option<Arc<dyn language::File>> {
2086 self.buffer.read(cx).read(cx).file_at(point).cloned()
2087 }
2088
2089 pub fn active_excerpt(
2090 &self,
2091 cx: &AppContext,
2092 ) -> Option<(ExcerptId, Model<Buffer>, Range<text::Anchor>)> {
2093 self.buffer
2094 .read(cx)
2095 .excerpt_containing(self.selections.newest_anchor().head(), cx)
2096 }
2097
2098 pub fn mode(&self) -> EditorMode {
2099 self.mode
2100 }
2101
2102 pub fn collaboration_hub(&self) -> Option<&dyn CollaborationHub> {
2103 self.collaboration_hub.as_deref()
2104 }
2105
2106 pub fn set_collaboration_hub(&mut self, hub: Box<dyn CollaborationHub>) {
2107 self.collaboration_hub = Some(hub);
2108 }
2109
2110 pub fn set_custom_context_menu(
2111 &mut self,
2112 f: impl 'static
2113 + Fn(&mut Self, DisplayPoint, &mut ViewContext<Self>) -> Option<View<ui::ContextMenu>>,
2114 ) {
2115 self.custom_context_menu = Some(Box::new(f))
2116 }
2117
2118 pub fn set_completion_provider(&mut self, provider: Box<dyn CompletionProvider>) {
2119 self.completion_provider = Some(provider);
2120 }
2121
2122 pub fn set_inline_completion_provider<T>(
2123 &mut self,
2124 provider: Option<Model<T>>,
2125 cx: &mut ViewContext<Self>,
2126 ) where
2127 T: InlineCompletionProvider,
2128 {
2129 self.inline_completion_provider =
2130 provider.map(|provider| RegisteredInlineCompletionProvider {
2131 _subscription: cx.observe(&provider, |this, _, cx| {
2132 if this.focus_handle.is_focused(cx) {
2133 this.update_visible_inline_completion(cx);
2134 }
2135 }),
2136 provider: Arc::new(provider),
2137 });
2138 self.refresh_inline_completion(false, cx);
2139 }
2140
2141 pub fn placeholder_text(&self, _cx: &WindowContext) -> Option<&str> {
2142 self.placeholder_text.as_deref()
2143 }
2144
2145 pub fn set_placeholder_text(
2146 &mut self,
2147 placeholder_text: impl Into<Arc<str>>,
2148 cx: &mut ViewContext<Self>,
2149 ) {
2150 let placeholder_text = Some(placeholder_text.into());
2151 if self.placeholder_text != placeholder_text {
2152 self.placeholder_text = placeholder_text;
2153 cx.notify();
2154 }
2155 }
2156
2157 pub fn set_cursor_shape(&mut self, cursor_shape: CursorShape, cx: &mut ViewContext<Self>) {
2158 self.cursor_shape = cursor_shape;
2159 cx.notify();
2160 }
2161
2162 pub fn set_current_line_highlight(
2163 &mut self,
2164 current_line_highlight: Option<CurrentLineHighlight>,
2165 ) {
2166 self.current_line_highlight = current_line_highlight;
2167 }
2168
2169 pub fn set_collapse_matches(&mut self, collapse_matches: bool) {
2170 self.collapse_matches = collapse_matches;
2171 }
2172
2173 pub fn range_for_match<T: std::marker::Copy>(&self, range: &Range<T>) -> Range<T> {
2174 if self.collapse_matches {
2175 return range.start..range.start;
2176 }
2177 range.clone()
2178 }
2179
2180 pub fn set_clip_at_line_ends(&mut self, clip: bool, cx: &mut ViewContext<Self>) {
2181 if self.display_map.read(cx).clip_at_line_ends != clip {
2182 self.display_map
2183 .update(cx, |map, _| map.clip_at_line_ends = clip);
2184 }
2185 }
2186
2187 pub fn set_keymap_context_layer<Tag: 'static>(
2188 &mut self,
2189 context: KeyContext,
2190 cx: &mut ViewContext<Self>,
2191 ) {
2192 self.keymap_context_layers
2193 .insert(TypeId::of::<Tag>(), context);
2194 cx.notify();
2195 }
2196
2197 pub fn remove_keymap_context_layer<Tag: 'static>(&mut self, cx: &mut ViewContext<Self>) {
2198 self.keymap_context_layers.remove(&TypeId::of::<Tag>());
2199 cx.notify();
2200 }
2201
2202 pub fn set_input_enabled(&mut self, input_enabled: bool) {
2203 self.input_enabled = input_enabled;
2204 }
2205
2206 pub fn set_autoindent(&mut self, autoindent: bool) {
2207 if autoindent {
2208 self.autoindent_mode = Some(AutoindentMode::EachLine);
2209 } else {
2210 self.autoindent_mode = None;
2211 }
2212 }
2213
2214 pub fn read_only(&self, cx: &AppContext) -> bool {
2215 self.read_only || self.buffer.read(cx).read_only()
2216 }
2217
2218 pub fn set_read_only(&mut self, read_only: bool) {
2219 self.read_only = read_only;
2220 }
2221
2222 pub fn set_use_autoclose(&mut self, autoclose: bool) {
2223 self.use_autoclose = autoclose;
2224 }
2225
2226 pub fn set_use_auto_surround(&mut self, auto_surround: bool) {
2227 self.use_auto_surround = auto_surround;
2228 }
2229
2230 pub fn set_auto_replace_emoji_shortcode(&mut self, auto_replace: bool) {
2231 self.auto_replace_emoji_shortcode = auto_replace;
2232 }
2233
2234 pub fn set_show_inline_completions(&mut self, show_inline_completions: bool) {
2235 self.show_inline_completions = show_inline_completions;
2236 }
2237
2238 pub fn set_use_modal_editing(&mut self, to: bool) {
2239 self.use_modal_editing = to;
2240 }
2241
2242 pub fn use_modal_editing(&self) -> bool {
2243 self.use_modal_editing
2244 }
2245
2246 fn selections_did_change(
2247 &mut self,
2248 local: bool,
2249 old_cursor_position: &Anchor,
2250 show_completions: bool,
2251 cx: &mut ViewContext<Self>,
2252 ) {
2253 // Copy selections to primary selection buffer
2254 #[cfg(target_os = "linux")]
2255 if local {
2256 let selections = self.selections.all::<usize>(cx);
2257 let buffer_handle = self.buffer.read(cx).read(cx);
2258
2259 let mut text = String::new();
2260 for (index, selection) in selections.iter().enumerate() {
2261 let text_for_selection = buffer_handle
2262 .text_for_range(selection.start..selection.end)
2263 .collect::<String>();
2264
2265 text.push_str(&text_for_selection);
2266 if index != selections.len() - 1 {
2267 text.push('\n');
2268 }
2269 }
2270
2271 if !text.is_empty() {
2272 cx.write_to_primary(ClipboardItem::new(text));
2273 }
2274 }
2275
2276 if self.focus_handle.is_focused(cx) && self.leader_peer_id.is_none() {
2277 self.buffer.update(cx, |buffer, cx| {
2278 buffer.set_active_selections(
2279 &self.selections.disjoint_anchors(),
2280 self.selections.line_mode,
2281 self.cursor_shape,
2282 cx,
2283 )
2284 });
2285 }
2286 let display_map = self
2287 .display_map
2288 .update(cx, |display_map, cx| display_map.snapshot(cx));
2289 let buffer = &display_map.buffer_snapshot;
2290 self.add_selections_state = None;
2291 self.select_next_state = None;
2292 self.select_prev_state = None;
2293 self.select_larger_syntax_node_stack.clear();
2294 self.invalidate_autoclose_regions(&self.selections.disjoint_anchors(), buffer);
2295 self.snippet_stack
2296 .invalidate(&self.selections.disjoint_anchors(), buffer);
2297 self.take_rename(false, cx);
2298
2299 let new_cursor_position = self.selections.newest_anchor().head();
2300
2301 self.push_to_nav_history(
2302 *old_cursor_position,
2303 Some(new_cursor_position.to_point(buffer)),
2304 cx,
2305 );
2306
2307 if local {
2308 let new_cursor_position = self.selections.newest_anchor().head();
2309 let mut context_menu = self.context_menu.write();
2310 let completion_menu = match context_menu.as_ref() {
2311 Some(ContextMenu::Completions(menu)) => Some(menu),
2312
2313 _ => {
2314 *context_menu = None;
2315 None
2316 }
2317 };
2318
2319 if let Some(completion_menu) = completion_menu {
2320 let cursor_position = new_cursor_position.to_offset(buffer);
2321 let (word_range, kind) = buffer.surrounding_word(completion_menu.initial_position);
2322 if kind == Some(CharKind::Word)
2323 && word_range.to_inclusive().contains(&cursor_position)
2324 {
2325 let mut completion_menu = completion_menu.clone();
2326 drop(context_menu);
2327
2328 let query = Self::completion_query(buffer, cursor_position);
2329 cx.spawn(move |this, mut cx| async move {
2330 completion_menu
2331 .filter(query.as_deref(), cx.background_executor().clone())
2332 .await;
2333
2334 this.update(&mut cx, |this, cx| {
2335 let mut context_menu = this.context_menu.write();
2336 let Some(ContextMenu::Completions(menu)) = context_menu.as_ref() else {
2337 return;
2338 };
2339
2340 if menu.id > completion_menu.id {
2341 return;
2342 }
2343
2344 *context_menu = Some(ContextMenu::Completions(completion_menu));
2345 drop(context_menu);
2346 cx.notify();
2347 })
2348 })
2349 .detach();
2350
2351 if show_completions {
2352 self.show_completions(&ShowCompletions { trigger: None }, cx);
2353 }
2354 } else {
2355 drop(context_menu);
2356 self.hide_context_menu(cx);
2357 }
2358 } else {
2359 drop(context_menu);
2360 }
2361
2362 hide_hover(self, cx);
2363
2364 if old_cursor_position.to_display_point(&display_map).row()
2365 != new_cursor_position.to_display_point(&display_map).row()
2366 {
2367 self.available_code_actions.take();
2368 }
2369 self.refresh_code_actions(cx);
2370 self.refresh_document_highlights(cx);
2371 refresh_matching_bracket_highlights(self, cx);
2372 self.discard_inline_completion(false, cx);
2373 linked_editing_ranges::refresh_linked_ranges(self, cx);
2374 if self.git_blame_inline_enabled {
2375 self.start_inline_blame_timer(cx);
2376 }
2377 }
2378
2379 self.blink_manager.update(cx, BlinkManager::pause_blinking);
2380 cx.emit(EditorEvent::SelectionsChanged { local });
2381
2382 if self.selections.disjoint_anchors().len() == 1 {
2383 cx.emit(SearchEvent::ActiveMatchChanged)
2384 }
2385 cx.notify();
2386 }
2387
2388 pub fn change_selections<R>(
2389 &mut self,
2390 autoscroll: Option<Autoscroll>,
2391 cx: &mut ViewContext<Self>,
2392 change: impl FnOnce(&mut MutableSelectionsCollection<'_>) -> R,
2393 ) -> R {
2394 self.change_selections_inner(autoscroll, true, cx, change)
2395 }
2396
2397 pub fn change_selections_inner<R>(
2398 &mut self,
2399 autoscroll: Option<Autoscroll>,
2400 request_completions: bool,
2401 cx: &mut ViewContext<Self>,
2402 change: impl FnOnce(&mut MutableSelectionsCollection<'_>) -> R,
2403 ) -> R {
2404 let old_cursor_position = self.selections.newest_anchor().head();
2405 self.push_to_selection_history();
2406
2407 let (changed, result) = self.selections.change_with(cx, change);
2408
2409 if changed {
2410 if let Some(autoscroll) = autoscroll {
2411 self.request_autoscroll(autoscroll, cx);
2412 }
2413 self.selections_did_change(true, &old_cursor_position, request_completions, cx);
2414 }
2415
2416 result
2417 }
2418
2419 pub fn edit<I, S, T>(&mut self, edits: I, cx: &mut ViewContext<Self>)
2420 where
2421 I: IntoIterator<Item = (Range<S>, T)>,
2422 S: ToOffset,
2423 T: Into<Arc<str>>,
2424 {
2425 if self.read_only(cx) {
2426 return;
2427 }
2428
2429 self.buffer
2430 .update(cx, |buffer, cx| buffer.edit(edits, None, cx));
2431 }
2432
2433 pub fn edit_with_autoindent<I, S, T>(&mut self, edits: I, cx: &mut ViewContext<Self>)
2434 where
2435 I: IntoIterator<Item = (Range<S>, T)>,
2436 S: ToOffset,
2437 T: Into<Arc<str>>,
2438 {
2439 if self.read_only(cx) {
2440 return;
2441 }
2442
2443 self.buffer.update(cx, |buffer, cx| {
2444 buffer.edit(edits, self.autoindent_mode.clone(), cx)
2445 });
2446 }
2447
2448 pub fn edit_with_block_indent<I, S, T>(
2449 &mut self,
2450 edits: I,
2451 original_indent_columns: Vec<u32>,
2452 cx: &mut ViewContext<Self>,
2453 ) where
2454 I: IntoIterator<Item = (Range<S>, T)>,
2455 S: ToOffset,
2456 T: Into<Arc<str>>,
2457 {
2458 if self.read_only(cx) {
2459 return;
2460 }
2461
2462 self.buffer.update(cx, |buffer, cx| {
2463 buffer.edit(
2464 edits,
2465 Some(AutoindentMode::Block {
2466 original_indent_columns,
2467 }),
2468 cx,
2469 )
2470 });
2471 }
2472
2473 fn select(&mut self, phase: SelectPhase, cx: &mut ViewContext<Self>) {
2474 self.hide_context_menu(cx);
2475
2476 match phase {
2477 SelectPhase::Begin {
2478 position,
2479 add,
2480 click_count,
2481 } => self.begin_selection(position, add, click_count, cx),
2482 SelectPhase::BeginColumnar {
2483 position,
2484 goal_column,
2485 reset,
2486 } => self.begin_columnar_selection(position, goal_column, reset, cx),
2487 SelectPhase::Extend {
2488 position,
2489 click_count,
2490 } => self.extend_selection(position, click_count, cx),
2491 SelectPhase::Update {
2492 position,
2493 goal_column,
2494 scroll_delta,
2495 } => self.update_selection(position, goal_column, scroll_delta, cx),
2496 SelectPhase::End => self.end_selection(cx),
2497 }
2498 }
2499
2500 fn extend_selection(
2501 &mut self,
2502 position: DisplayPoint,
2503 click_count: usize,
2504 cx: &mut ViewContext<Self>,
2505 ) {
2506 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
2507 let tail = self.selections.newest::<usize>(cx).tail();
2508 self.begin_selection(position, false, click_count, cx);
2509
2510 let position = position.to_offset(&display_map, Bias::Left);
2511 let tail_anchor = display_map.buffer_snapshot.anchor_before(tail);
2512
2513 let mut pending_selection = self
2514 .selections
2515 .pending_anchor()
2516 .expect("extend_selection not called with pending selection");
2517 if position >= tail {
2518 pending_selection.start = tail_anchor;
2519 } else {
2520 pending_selection.end = tail_anchor;
2521 pending_selection.reversed = true;
2522 }
2523
2524 let mut pending_mode = self.selections.pending_mode().unwrap();
2525 match &mut pending_mode {
2526 SelectMode::Word(range) | SelectMode::Line(range) => *range = tail_anchor..tail_anchor,
2527 _ => {}
2528 }
2529
2530 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
2531 s.set_pending(pending_selection, pending_mode)
2532 });
2533 }
2534
2535 fn begin_selection(
2536 &mut self,
2537 position: DisplayPoint,
2538 add: bool,
2539 click_count: usize,
2540 cx: &mut ViewContext<Self>,
2541 ) {
2542 if !self.focus_handle.is_focused(cx) {
2543 self.last_focused_descendant = None;
2544 cx.focus(&self.focus_handle);
2545 }
2546
2547 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
2548 let buffer = &display_map.buffer_snapshot;
2549 let newest_selection = self.selections.newest_anchor().clone();
2550 let position = display_map.clip_point(position, Bias::Left);
2551
2552 let start;
2553 let end;
2554 let mode;
2555 let auto_scroll;
2556 match click_count {
2557 1 => {
2558 start = buffer.anchor_before(position.to_point(&display_map));
2559 end = start;
2560 mode = SelectMode::Character;
2561 auto_scroll = true;
2562 }
2563 2 => {
2564 let range = movement::surrounding_word(&display_map, position);
2565 start = buffer.anchor_before(range.start.to_point(&display_map));
2566 end = buffer.anchor_before(range.end.to_point(&display_map));
2567 mode = SelectMode::Word(start..end);
2568 auto_scroll = true;
2569 }
2570 3 => {
2571 let position = display_map
2572 .clip_point(position, Bias::Left)
2573 .to_point(&display_map);
2574 let line_start = display_map.prev_line_boundary(position).0;
2575 let next_line_start = buffer.clip_point(
2576 display_map.next_line_boundary(position).0 + Point::new(1, 0),
2577 Bias::Left,
2578 );
2579 start = buffer.anchor_before(line_start);
2580 end = buffer.anchor_before(next_line_start);
2581 mode = SelectMode::Line(start..end);
2582 auto_scroll = true;
2583 }
2584 _ => {
2585 start = buffer.anchor_before(0);
2586 end = buffer.anchor_before(buffer.len());
2587 mode = SelectMode::All;
2588 auto_scroll = false;
2589 }
2590 }
2591
2592 let point_to_delete: Option<usize> = {
2593 let selected_points: Vec<Selection<Point>> =
2594 self.selections.disjoint_in_range(start..end, cx);
2595
2596 if !add || click_count > 1 {
2597 None
2598 } else if selected_points.len() > 0 {
2599 Some(selected_points[0].id)
2600 } else {
2601 let clicked_point_already_selected =
2602 self.selections.disjoint.iter().find(|selection| {
2603 selection.start.to_point(buffer) == start.to_point(buffer)
2604 || selection.end.to_point(buffer) == end.to_point(buffer)
2605 });
2606
2607 if let Some(selection) = clicked_point_already_selected {
2608 Some(selection.id)
2609 } else {
2610 None
2611 }
2612 }
2613 };
2614
2615 let selections_count = self.selections.count();
2616
2617 self.change_selections(auto_scroll.then(|| Autoscroll::newest()), cx, |s| {
2618 if let Some(point_to_delete) = point_to_delete {
2619 s.delete(point_to_delete);
2620
2621 if selections_count == 1 {
2622 s.set_pending_anchor_range(start..end, mode);
2623 }
2624 } else {
2625 if !add {
2626 s.clear_disjoint();
2627 } else if click_count > 1 {
2628 s.delete(newest_selection.id)
2629 }
2630
2631 s.set_pending_anchor_range(start..end, mode);
2632 }
2633 });
2634 }
2635
2636 fn begin_columnar_selection(
2637 &mut self,
2638 position: DisplayPoint,
2639 goal_column: u32,
2640 reset: bool,
2641 cx: &mut ViewContext<Self>,
2642 ) {
2643 if !self.focus_handle.is_focused(cx) {
2644 self.last_focused_descendant = None;
2645 cx.focus(&self.focus_handle);
2646 }
2647
2648 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
2649
2650 if reset {
2651 let pointer_position = display_map
2652 .buffer_snapshot
2653 .anchor_before(position.to_point(&display_map));
2654
2655 self.change_selections(Some(Autoscroll::newest()), cx, |s| {
2656 s.clear_disjoint();
2657 s.set_pending_anchor_range(
2658 pointer_position..pointer_position,
2659 SelectMode::Character,
2660 );
2661 });
2662 }
2663
2664 let tail = self.selections.newest::<Point>(cx).tail();
2665 self.columnar_selection_tail = Some(display_map.buffer_snapshot.anchor_before(tail));
2666
2667 if !reset {
2668 self.select_columns(
2669 tail.to_display_point(&display_map),
2670 position,
2671 goal_column,
2672 &display_map,
2673 cx,
2674 );
2675 }
2676 }
2677
2678 fn update_selection(
2679 &mut self,
2680 position: DisplayPoint,
2681 goal_column: u32,
2682 scroll_delta: gpui::Point<f32>,
2683 cx: &mut ViewContext<Self>,
2684 ) {
2685 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
2686
2687 if let Some(tail) = self.columnar_selection_tail.as_ref() {
2688 let tail = tail.to_display_point(&display_map);
2689 self.select_columns(tail, position, goal_column, &display_map, cx);
2690 } else if let Some(mut pending) = self.selections.pending_anchor() {
2691 let buffer = self.buffer.read(cx).snapshot(cx);
2692 let head;
2693 let tail;
2694 let mode = self.selections.pending_mode().unwrap();
2695 match &mode {
2696 SelectMode::Character => {
2697 head = position.to_point(&display_map);
2698 tail = pending.tail().to_point(&buffer);
2699 }
2700 SelectMode::Word(original_range) => {
2701 let original_display_range = original_range.start.to_display_point(&display_map)
2702 ..original_range.end.to_display_point(&display_map);
2703 let original_buffer_range = original_display_range.start.to_point(&display_map)
2704 ..original_display_range.end.to_point(&display_map);
2705 if movement::is_inside_word(&display_map, position)
2706 || original_display_range.contains(&position)
2707 {
2708 let word_range = movement::surrounding_word(&display_map, position);
2709 if word_range.start < original_display_range.start {
2710 head = word_range.start.to_point(&display_map);
2711 } else {
2712 head = word_range.end.to_point(&display_map);
2713 }
2714 } else {
2715 head = position.to_point(&display_map);
2716 }
2717
2718 if head <= original_buffer_range.start {
2719 tail = original_buffer_range.end;
2720 } else {
2721 tail = original_buffer_range.start;
2722 }
2723 }
2724 SelectMode::Line(original_range) => {
2725 let original_range = original_range.to_point(&display_map.buffer_snapshot);
2726
2727 let position = display_map
2728 .clip_point(position, Bias::Left)
2729 .to_point(&display_map);
2730 let line_start = display_map.prev_line_boundary(position).0;
2731 let next_line_start = buffer.clip_point(
2732 display_map.next_line_boundary(position).0 + Point::new(1, 0),
2733 Bias::Left,
2734 );
2735
2736 if line_start < original_range.start {
2737 head = line_start
2738 } else {
2739 head = next_line_start
2740 }
2741
2742 if head <= original_range.start {
2743 tail = original_range.end;
2744 } else {
2745 tail = original_range.start;
2746 }
2747 }
2748 SelectMode::All => {
2749 return;
2750 }
2751 };
2752
2753 if head < tail {
2754 pending.start = buffer.anchor_before(head);
2755 pending.end = buffer.anchor_before(tail);
2756 pending.reversed = true;
2757 } else {
2758 pending.start = buffer.anchor_before(tail);
2759 pending.end = buffer.anchor_before(head);
2760 pending.reversed = false;
2761 }
2762
2763 self.change_selections(None, cx, |s| {
2764 s.set_pending(pending, mode);
2765 });
2766 } else {
2767 log::error!("update_selection dispatched with no pending selection");
2768 return;
2769 }
2770
2771 self.apply_scroll_delta(scroll_delta, cx);
2772 cx.notify();
2773 }
2774
2775 fn end_selection(&mut self, cx: &mut ViewContext<Self>) {
2776 self.columnar_selection_tail.take();
2777 if self.selections.pending_anchor().is_some() {
2778 let selections = self.selections.all::<usize>(cx);
2779 self.change_selections(None, cx, |s| {
2780 s.select(selections);
2781 s.clear_pending();
2782 });
2783 }
2784 }
2785
2786 fn select_columns(
2787 &mut self,
2788 tail: DisplayPoint,
2789 head: DisplayPoint,
2790 goal_column: u32,
2791 display_map: &DisplaySnapshot,
2792 cx: &mut ViewContext<Self>,
2793 ) {
2794 let start_row = cmp::min(tail.row(), head.row());
2795 let end_row = cmp::max(tail.row(), head.row());
2796 let start_column = cmp::min(tail.column(), goal_column);
2797 let end_column = cmp::max(tail.column(), goal_column);
2798 let reversed = start_column < tail.column();
2799
2800 let selection_ranges = (start_row.0..=end_row.0)
2801 .map(DisplayRow)
2802 .filter_map(|row| {
2803 if start_column <= display_map.line_len(row) && !display_map.is_block_line(row) {
2804 let start = display_map
2805 .clip_point(DisplayPoint::new(row, start_column), Bias::Left)
2806 .to_point(display_map);
2807 let end = display_map
2808 .clip_point(DisplayPoint::new(row, end_column), Bias::Right)
2809 .to_point(display_map);
2810 if reversed {
2811 Some(end..start)
2812 } else {
2813 Some(start..end)
2814 }
2815 } else {
2816 None
2817 }
2818 })
2819 .collect::<Vec<_>>();
2820
2821 self.change_selections(None, cx, |s| {
2822 s.select_ranges(selection_ranges);
2823 });
2824 cx.notify();
2825 }
2826
2827 pub fn has_pending_nonempty_selection(&self) -> bool {
2828 let pending_nonempty_selection = match self.selections.pending_anchor() {
2829 Some(Selection { start, end, .. }) => start != end,
2830 None => false,
2831 };
2832
2833 pending_nonempty_selection
2834 || (self.columnar_selection_tail.is_some() && self.selections.disjoint.len() > 1)
2835 }
2836
2837 pub fn has_pending_selection(&self) -> bool {
2838 self.selections.pending_anchor().is_some() || self.columnar_selection_tail.is_some()
2839 }
2840
2841 pub fn cancel(&mut self, _: &Cancel, cx: &mut ViewContext<Self>) {
2842 self.clear_expanded_diff_hunks(cx);
2843 if self.dismiss_menus_and_popups(true, cx) {
2844 return;
2845 }
2846
2847 if self.mode == EditorMode::Full {
2848 if self.change_selections(Some(Autoscroll::fit()), cx, |s| s.try_cancel()) {
2849 return;
2850 }
2851 }
2852
2853 cx.propagate();
2854 }
2855
2856 pub fn dismiss_menus_and_popups(
2857 &mut self,
2858 should_report_inline_completion_event: bool,
2859 cx: &mut ViewContext<Self>,
2860 ) -> bool {
2861 if self.take_rename(false, cx).is_some() {
2862 return true;
2863 }
2864
2865 if hide_hover(self, cx) {
2866 return true;
2867 }
2868
2869 if self.hide_context_menu(cx).is_some() {
2870 return true;
2871 }
2872
2873 if self.discard_inline_completion(should_report_inline_completion_event, cx) {
2874 return true;
2875 }
2876
2877 if self.snippet_stack.pop().is_some() {
2878 return true;
2879 }
2880
2881 if self.mode == EditorMode::Full {
2882 if self.active_diagnostics.is_some() {
2883 self.dismiss_diagnostics(cx);
2884 return true;
2885 }
2886 }
2887
2888 false
2889 }
2890
2891 fn linked_editing_ranges_for(
2892 &self,
2893 selection: Range<text::Anchor>,
2894 cx: &AppContext,
2895 ) -> Option<HashMap<Model<Buffer>, Vec<Range<text::Anchor>>>> {
2896 if self.linked_edit_ranges.is_empty() {
2897 return None;
2898 }
2899 let ((base_range, linked_ranges), buffer_snapshot, buffer) =
2900 selection.end.buffer_id.and_then(|end_buffer_id| {
2901 if selection.start.buffer_id != Some(end_buffer_id) {
2902 return None;
2903 }
2904 let buffer = self.buffer.read(cx).buffer(end_buffer_id)?;
2905 let snapshot = buffer.read(cx).snapshot();
2906 self.linked_edit_ranges
2907 .get(end_buffer_id, selection.start..selection.end, &snapshot)
2908 .map(|ranges| (ranges, snapshot, buffer))
2909 })?;
2910 use text::ToOffset as TO;
2911 // find offset from the start of current range to current cursor position
2912 let start_byte_offset = TO::to_offset(&base_range.start, &buffer_snapshot);
2913
2914 let start_offset = TO::to_offset(&selection.start, &buffer_snapshot);
2915 let start_difference = start_offset - start_byte_offset;
2916 let end_offset = TO::to_offset(&selection.end, &buffer_snapshot);
2917 let end_difference = end_offset - start_byte_offset;
2918 // Current range has associated linked ranges.
2919 let mut linked_edits = HashMap::<_, Vec<_>>::default();
2920 for range in linked_ranges.iter() {
2921 let start_offset = TO::to_offset(&range.start, &buffer_snapshot);
2922 let end_offset = start_offset + end_difference;
2923 let start_offset = start_offset + start_difference;
2924 if start_offset > buffer_snapshot.len() || end_offset > buffer_snapshot.len() {
2925 continue;
2926 }
2927 let start = buffer_snapshot.anchor_after(start_offset);
2928 let end = buffer_snapshot.anchor_after(end_offset);
2929 linked_edits
2930 .entry(buffer.clone())
2931 .or_default()
2932 .push(start..end);
2933 }
2934 Some(linked_edits)
2935 }
2936
2937 pub fn handle_input(&mut self, text: &str, cx: &mut ViewContext<Self>) {
2938 let text: Arc<str> = text.into();
2939
2940 if self.read_only(cx) {
2941 return;
2942 }
2943
2944 let selections = self.selections.all_adjusted(cx);
2945 let mut brace_inserted = false;
2946 let mut edits = Vec::new();
2947 let mut linked_edits = HashMap::<_, Vec<_>>::default();
2948 let mut new_selections = Vec::with_capacity(selections.len());
2949 let mut new_autoclose_regions = Vec::new();
2950 let snapshot = self.buffer.read(cx).read(cx);
2951
2952 for (selection, autoclose_region) in
2953 self.selections_with_autoclose_regions(selections, &snapshot)
2954 {
2955 if let Some(scope) = snapshot.language_scope_at(selection.head()) {
2956 // Determine if the inserted text matches the opening or closing
2957 // bracket of any of this language's bracket pairs.
2958 let mut bracket_pair = None;
2959 let mut is_bracket_pair_start = false;
2960 let mut is_bracket_pair_end = false;
2961 if !text.is_empty() {
2962 // `text` can be empty when a user is using IME (e.g. Chinese Wubi Simplified)
2963 // and they are removing the character that triggered IME popup.
2964 for (pair, enabled) in scope.brackets() {
2965 if !pair.close && !pair.surround {
2966 continue;
2967 }
2968
2969 if enabled && pair.start.ends_with(text.as_ref()) {
2970 bracket_pair = Some(pair.clone());
2971 is_bracket_pair_start = true;
2972 break;
2973 }
2974 if pair.end.as_str() == text.as_ref() {
2975 bracket_pair = Some(pair.clone());
2976 is_bracket_pair_end = true;
2977 break;
2978 }
2979 }
2980 }
2981
2982 if let Some(bracket_pair) = bracket_pair {
2983 let snapshot_settings = snapshot.settings_at(selection.start, cx);
2984 let autoclose = self.use_autoclose && snapshot_settings.use_autoclose;
2985 let auto_surround =
2986 self.use_auto_surround && snapshot_settings.use_auto_surround;
2987 if selection.is_empty() {
2988 if is_bracket_pair_start {
2989 let prefix_len = bracket_pair.start.len() - text.len();
2990
2991 // If the inserted text is a suffix of an opening bracket and the
2992 // selection is preceded by the rest of the opening bracket, then
2993 // insert the closing bracket.
2994 let following_text_allows_autoclose = snapshot
2995 .chars_at(selection.start)
2996 .next()
2997 .map_or(true, |c| scope.should_autoclose_before(c));
2998 let preceding_text_matches_prefix = prefix_len == 0
2999 || (selection.start.column >= (prefix_len as u32)
3000 && snapshot.contains_str_at(
3001 Point::new(
3002 selection.start.row,
3003 selection.start.column - (prefix_len as u32),
3004 ),
3005 &bracket_pair.start[..prefix_len],
3006 ));
3007 if autoclose
3008 && bracket_pair.close
3009 && following_text_allows_autoclose
3010 && preceding_text_matches_prefix
3011 {
3012 let anchor = snapshot.anchor_before(selection.end);
3013 new_selections.push((selection.map(|_| anchor), text.len()));
3014 new_autoclose_regions.push((
3015 anchor,
3016 text.len(),
3017 selection.id,
3018 bracket_pair.clone(),
3019 ));
3020 edits.push((
3021 selection.range(),
3022 format!("{}{}", text, bracket_pair.end).into(),
3023 ));
3024 brace_inserted = true;
3025 continue;
3026 }
3027 }
3028
3029 if let Some(region) = autoclose_region {
3030 // If the selection is followed by an auto-inserted closing bracket,
3031 // then don't insert that closing bracket again; just move the selection
3032 // past the closing bracket.
3033 let should_skip = selection.end == region.range.end.to_point(&snapshot)
3034 && text.as_ref() == region.pair.end.as_str();
3035 if should_skip {
3036 let anchor = snapshot.anchor_after(selection.end);
3037 new_selections
3038 .push((selection.map(|_| anchor), region.pair.end.len()));
3039 continue;
3040 }
3041 }
3042
3043 let always_treat_brackets_as_autoclosed = snapshot
3044 .settings_at(selection.start, cx)
3045 .always_treat_brackets_as_autoclosed;
3046 if always_treat_brackets_as_autoclosed
3047 && is_bracket_pair_end
3048 && snapshot.contains_str_at(selection.end, text.as_ref())
3049 {
3050 // Otherwise, when `always_treat_brackets_as_autoclosed` is set to `true
3051 // and the inserted text is a closing bracket and the selection is followed
3052 // by the closing bracket then move the selection past the closing bracket.
3053 let anchor = snapshot.anchor_after(selection.end);
3054 new_selections.push((selection.map(|_| anchor), text.len()));
3055 continue;
3056 }
3057 }
3058 // If an opening bracket is 1 character long and is typed while
3059 // text is selected, then surround that text with the bracket pair.
3060 else if auto_surround
3061 && bracket_pair.surround
3062 && is_bracket_pair_start
3063 && bracket_pair.start.chars().count() == 1
3064 {
3065 edits.push((selection.start..selection.start, text.clone()));
3066 edits.push((
3067 selection.end..selection.end,
3068 bracket_pair.end.as_str().into(),
3069 ));
3070 brace_inserted = true;
3071 new_selections.push((
3072 Selection {
3073 id: selection.id,
3074 start: snapshot.anchor_after(selection.start),
3075 end: snapshot.anchor_before(selection.end),
3076 reversed: selection.reversed,
3077 goal: selection.goal,
3078 },
3079 0,
3080 ));
3081 continue;
3082 }
3083 }
3084 }
3085
3086 if self.auto_replace_emoji_shortcode
3087 && selection.is_empty()
3088 && text.as_ref().ends_with(':')
3089 {
3090 if let Some(possible_emoji_short_code) =
3091 Self::find_possible_emoji_shortcode_at_position(&snapshot, selection.start)
3092 {
3093 if !possible_emoji_short_code.is_empty() {
3094 if let Some(emoji) = emojis::get_by_shortcode(&possible_emoji_short_code) {
3095 let emoji_shortcode_start = Point::new(
3096 selection.start.row,
3097 selection.start.column - possible_emoji_short_code.len() as u32 - 1,
3098 );
3099
3100 // Remove shortcode from buffer
3101 edits.push((
3102 emoji_shortcode_start..selection.start,
3103 "".to_string().into(),
3104 ));
3105 new_selections.push((
3106 Selection {
3107 id: selection.id,
3108 start: snapshot.anchor_after(emoji_shortcode_start),
3109 end: snapshot.anchor_before(selection.start),
3110 reversed: selection.reversed,
3111 goal: selection.goal,
3112 },
3113 0,
3114 ));
3115
3116 // Insert emoji
3117 let selection_start_anchor = snapshot.anchor_after(selection.start);
3118 new_selections.push((selection.map(|_| selection_start_anchor), 0));
3119 edits.push((selection.start..selection.end, emoji.to_string().into()));
3120
3121 continue;
3122 }
3123 }
3124 }
3125 }
3126
3127 // If not handling any auto-close operation, then just replace the selected
3128 // text with the given input and move the selection to the end of the
3129 // newly inserted text.
3130 let anchor = snapshot.anchor_after(selection.end);
3131 if !self.linked_edit_ranges.is_empty() {
3132 let start_anchor = snapshot.anchor_before(selection.start);
3133
3134 let is_word_char = text.chars().next().map_or(true, |char| {
3135 let scope = snapshot.language_scope_at(start_anchor.to_offset(&snapshot));
3136 let kind = char_kind(&scope, char);
3137
3138 kind == CharKind::Word
3139 });
3140
3141 if is_word_char {
3142 if let Some(ranges) = self
3143 .linked_editing_ranges_for(start_anchor.text_anchor..anchor.text_anchor, cx)
3144 {
3145 for (buffer, edits) in ranges {
3146 linked_edits
3147 .entry(buffer.clone())
3148 .or_default()
3149 .extend(edits.into_iter().map(|range| (range, text.clone())));
3150 }
3151 }
3152 }
3153 }
3154
3155 new_selections.push((selection.map(|_| anchor), 0));
3156 edits.push((selection.start..selection.end, text.clone()));
3157 }
3158
3159 drop(snapshot);
3160
3161 self.transact(cx, |this, cx| {
3162 this.buffer.update(cx, |buffer, cx| {
3163 buffer.edit(edits, this.autoindent_mode.clone(), cx);
3164 });
3165 for (buffer, edits) in linked_edits {
3166 buffer.update(cx, |buffer, cx| {
3167 let snapshot = buffer.snapshot();
3168 let edits = edits
3169 .into_iter()
3170 .map(|(range, text)| {
3171 use text::ToPoint as TP;
3172 let end_point = TP::to_point(&range.end, &snapshot);
3173 let start_point = TP::to_point(&range.start, &snapshot);
3174 (start_point..end_point, text)
3175 })
3176 .sorted_by_key(|(range, _)| range.start)
3177 .collect::<Vec<_>>();
3178 buffer.edit(edits, None, cx);
3179 })
3180 }
3181 let new_anchor_selections = new_selections.iter().map(|e| &e.0);
3182 let new_selection_deltas = new_selections.iter().map(|e| e.1);
3183 let snapshot = this.buffer.read(cx).read(cx);
3184 let new_selections = resolve_multiple::<usize, _>(new_anchor_selections, &snapshot)
3185 .zip(new_selection_deltas)
3186 .map(|(selection, delta)| Selection {
3187 id: selection.id,
3188 start: selection.start + delta,
3189 end: selection.end + delta,
3190 reversed: selection.reversed,
3191 goal: SelectionGoal::None,
3192 })
3193 .collect::<Vec<_>>();
3194
3195 let mut i = 0;
3196 for (position, delta, selection_id, pair) in new_autoclose_regions {
3197 let position = position.to_offset(&snapshot) + delta;
3198 let start = snapshot.anchor_before(position);
3199 let end = snapshot.anchor_after(position);
3200 while let Some(existing_state) = this.autoclose_regions.get(i) {
3201 match existing_state.range.start.cmp(&start, &snapshot) {
3202 Ordering::Less => i += 1,
3203 Ordering::Greater => break,
3204 Ordering::Equal => match end.cmp(&existing_state.range.end, &snapshot) {
3205 Ordering::Less => i += 1,
3206 Ordering::Equal => break,
3207 Ordering::Greater => break,
3208 },
3209 }
3210 }
3211 this.autoclose_regions.insert(
3212 i,
3213 AutocloseRegion {
3214 selection_id,
3215 range: start..end,
3216 pair,
3217 },
3218 );
3219 }
3220
3221 drop(snapshot);
3222 let had_active_inline_completion = this.has_active_inline_completion(cx);
3223 this.change_selections_inner(Some(Autoscroll::fit()), false, cx, |s| {
3224 s.select(new_selections)
3225 });
3226
3227 if !brace_inserted && EditorSettings::get_global(cx).use_on_type_format {
3228 if let Some(on_type_format_task) =
3229 this.trigger_on_type_formatting(text.to_string(), cx)
3230 {
3231 on_type_format_task.detach_and_log_err(cx);
3232 }
3233 }
3234
3235 let trigger_in_words = !had_active_inline_completion;
3236 this.trigger_completion_on_input(&text, trigger_in_words, cx);
3237 linked_editing_ranges::refresh_linked_ranges(this, cx);
3238 this.refresh_inline_completion(true, cx);
3239 });
3240 }
3241
3242 fn find_possible_emoji_shortcode_at_position(
3243 snapshot: &MultiBufferSnapshot,
3244 position: Point,
3245 ) -> Option<String> {
3246 let mut chars = Vec::new();
3247 let mut found_colon = false;
3248 for char in snapshot.reversed_chars_at(position).take(100) {
3249 // Found a possible emoji shortcode in the middle of the buffer
3250 if found_colon {
3251 if char.is_whitespace() {
3252 chars.reverse();
3253 return Some(chars.iter().collect());
3254 }
3255 // If the previous character is not a whitespace, we are in the middle of a word
3256 // and we only want to complete the shortcode if the word is made up of other emojis
3257 let mut containing_word = String::new();
3258 for ch in snapshot
3259 .reversed_chars_at(position)
3260 .skip(chars.len() + 1)
3261 .take(100)
3262 {
3263 if ch.is_whitespace() {
3264 break;
3265 }
3266 containing_word.push(ch);
3267 }
3268 let containing_word = containing_word.chars().rev().collect::<String>();
3269 if util::word_consists_of_emojis(containing_word.as_str()) {
3270 chars.reverse();
3271 return Some(chars.iter().collect());
3272 }
3273 }
3274
3275 if char.is_whitespace() || !char.is_ascii() {
3276 return None;
3277 }
3278 if char == ':' {
3279 found_colon = true;
3280 } else {
3281 chars.push(char);
3282 }
3283 }
3284 // Found a possible emoji shortcode at the beginning of the buffer
3285 chars.reverse();
3286 Some(chars.iter().collect())
3287 }
3288
3289 pub fn newline(&mut self, _: &Newline, cx: &mut ViewContext<Self>) {
3290 self.transact(cx, |this, cx| {
3291 let (edits, selection_fixup_info): (Vec<_>, Vec<_>) = {
3292 let selections = this.selections.all::<usize>(cx);
3293 let multi_buffer = this.buffer.read(cx);
3294 let buffer = multi_buffer.snapshot(cx);
3295 selections
3296 .iter()
3297 .map(|selection| {
3298 let start_point = selection.start.to_point(&buffer);
3299 let mut indent =
3300 buffer.indent_size_for_line(MultiBufferRow(start_point.row));
3301 indent.len = cmp::min(indent.len, start_point.column);
3302 let start = selection.start;
3303 let end = selection.end;
3304 let selection_is_empty = start == end;
3305 let language_scope = buffer.language_scope_at(start);
3306 let (comment_delimiter, insert_extra_newline) = if let Some(language) =
3307 &language_scope
3308 {
3309 let leading_whitespace_len = buffer
3310 .reversed_chars_at(start)
3311 .take_while(|c| c.is_whitespace() && *c != '\n')
3312 .map(|c| c.len_utf8())
3313 .sum::<usize>();
3314
3315 let trailing_whitespace_len = buffer
3316 .chars_at(end)
3317 .take_while(|c| c.is_whitespace() && *c != '\n')
3318 .map(|c| c.len_utf8())
3319 .sum::<usize>();
3320
3321 let insert_extra_newline =
3322 language.brackets().any(|(pair, enabled)| {
3323 let pair_start = pair.start.trim_end();
3324 let pair_end = pair.end.trim_start();
3325
3326 enabled
3327 && pair.newline
3328 && buffer.contains_str_at(
3329 end + trailing_whitespace_len,
3330 pair_end,
3331 )
3332 && buffer.contains_str_at(
3333 (start - leading_whitespace_len)
3334 .saturating_sub(pair_start.len()),
3335 pair_start,
3336 )
3337 });
3338
3339 // Comment extension on newline is allowed only for cursor selections
3340 let comment_delimiter = maybe!({
3341 if !selection_is_empty {
3342 return None;
3343 }
3344
3345 if !multi_buffer.settings_at(0, cx).extend_comment_on_newline {
3346 return None;
3347 }
3348
3349 let delimiters = language.line_comment_prefixes();
3350 let max_len_of_delimiter =
3351 delimiters.iter().map(|delimiter| delimiter.len()).max()?;
3352 let (snapshot, range) =
3353 buffer.buffer_line_for_row(MultiBufferRow(start_point.row))?;
3354
3355 let mut index_of_first_non_whitespace = 0;
3356 let comment_candidate = snapshot
3357 .chars_for_range(range)
3358 .skip_while(|c| {
3359 let should_skip = c.is_whitespace();
3360 if should_skip {
3361 index_of_first_non_whitespace += 1;
3362 }
3363 should_skip
3364 })
3365 .take(max_len_of_delimiter)
3366 .collect::<String>();
3367 let comment_prefix = delimiters.iter().find(|comment_prefix| {
3368 comment_candidate.starts_with(comment_prefix.as_ref())
3369 })?;
3370 let cursor_is_placed_after_comment_marker =
3371 index_of_first_non_whitespace + comment_prefix.len()
3372 <= start_point.column as usize;
3373 if cursor_is_placed_after_comment_marker {
3374 Some(comment_prefix.clone())
3375 } else {
3376 None
3377 }
3378 });
3379 (comment_delimiter, insert_extra_newline)
3380 } else {
3381 (None, false)
3382 };
3383
3384 let capacity_for_delimiter = comment_delimiter
3385 .as_deref()
3386 .map(str::len)
3387 .unwrap_or_default();
3388 let mut new_text =
3389 String::with_capacity(1 + capacity_for_delimiter + indent.len as usize);
3390 new_text.push_str("\n");
3391 new_text.extend(indent.chars());
3392 if let Some(delimiter) = &comment_delimiter {
3393 new_text.push_str(&delimiter);
3394 }
3395 if insert_extra_newline {
3396 new_text = new_text.repeat(2);
3397 }
3398
3399 let anchor = buffer.anchor_after(end);
3400 let new_selection = selection.map(|_| anchor);
3401 (
3402 (start..end, new_text),
3403 (insert_extra_newline, new_selection),
3404 )
3405 })
3406 .unzip()
3407 };
3408
3409 this.edit_with_autoindent(edits, cx);
3410 let buffer = this.buffer.read(cx).snapshot(cx);
3411 let new_selections = selection_fixup_info
3412 .into_iter()
3413 .map(|(extra_newline_inserted, new_selection)| {
3414 let mut cursor = new_selection.end.to_point(&buffer);
3415 if extra_newline_inserted {
3416 cursor.row -= 1;
3417 cursor.column = buffer.line_len(MultiBufferRow(cursor.row));
3418 }
3419 new_selection.map(|_| cursor)
3420 })
3421 .collect();
3422
3423 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(new_selections));
3424 this.refresh_inline_completion(true, cx);
3425 });
3426 }
3427
3428 pub fn newline_above(&mut self, _: &NewlineAbove, cx: &mut ViewContext<Self>) {
3429 let buffer = self.buffer.read(cx);
3430 let snapshot = buffer.snapshot(cx);
3431
3432 let mut edits = Vec::new();
3433 let mut rows = Vec::new();
3434
3435 for (rows_inserted, selection) in self.selections.all_adjusted(cx).into_iter().enumerate() {
3436 let cursor = selection.head();
3437 let row = cursor.row;
3438
3439 let start_of_line = snapshot.clip_point(Point::new(row, 0), Bias::Left);
3440
3441 let newline = "\n".to_string();
3442 edits.push((start_of_line..start_of_line, newline));
3443
3444 rows.push(row + rows_inserted as u32);
3445 }
3446
3447 self.transact(cx, |editor, cx| {
3448 editor.edit(edits, cx);
3449
3450 editor.change_selections(Some(Autoscroll::fit()), cx, |s| {
3451 let mut index = 0;
3452 s.move_cursors_with(|map, _, _| {
3453 let row = rows[index];
3454 index += 1;
3455
3456 let point = Point::new(row, 0);
3457 let boundary = map.next_line_boundary(point).1;
3458 let clipped = map.clip_point(boundary, Bias::Left);
3459
3460 (clipped, SelectionGoal::None)
3461 });
3462 });
3463
3464 let mut indent_edits = Vec::new();
3465 let multibuffer_snapshot = editor.buffer.read(cx).snapshot(cx);
3466 for row in rows {
3467 let indents = multibuffer_snapshot.suggested_indents(row..row + 1, cx);
3468 for (row, indent) in indents {
3469 if indent.len == 0 {
3470 continue;
3471 }
3472
3473 let text = match indent.kind {
3474 IndentKind::Space => " ".repeat(indent.len as usize),
3475 IndentKind::Tab => "\t".repeat(indent.len as usize),
3476 };
3477 let point = Point::new(row.0, 0);
3478 indent_edits.push((point..point, text));
3479 }
3480 }
3481 editor.edit(indent_edits, cx);
3482 });
3483 }
3484
3485 pub fn newline_below(&mut self, _: &NewlineBelow, cx: &mut ViewContext<Self>) {
3486 let buffer = self.buffer.read(cx);
3487 let snapshot = buffer.snapshot(cx);
3488
3489 let mut edits = Vec::new();
3490 let mut rows = Vec::new();
3491 let mut rows_inserted = 0;
3492
3493 for selection in self.selections.all_adjusted(cx) {
3494 let cursor = selection.head();
3495 let row = cursor.row;
3496
3497 let point = Point::new(row + 1, 0);
3498 let start_of_line = snapshot.clip_point(point, Bias::Left);
3499
3500 let newline = "\n".to_string();
3501 edits.push((start_of_line..start_of_line, newline));
3502
3503 rows_inserted += 1;
3504 rows.push(row + rows_inserted);
3505 }
3506
3507 self.transact(cx, |editor, cx| {
3508 editor.edit(edits, cx);
3509
3510 editor.change_selections(Some(Autoscroll::fit()), cx, |s| {
3511 let mut index = 0;
3512 s.move_cursors_with(|map, _, _| {
3513 let row = rows[index];
3514 index += 1;
3515
3516 let point = Point::new(row, 0);
3517 let boundary = map.next_line_boundary(point).1;
3518 let clipped = map.clip_point(boundary, Bias::Left);
3519
3520 (clipped, SelectionGoal::None)
3521 });
3522 });
3523
3524 let mut indent_edits = Vec::new();
3525 let multibuffer_snapshot = editor.buffer.read(cx).snapshot(cx);
3526 for row in rows {
3527 let indents = multibuffer_snapshot.suggested_indents(row..row + 1, cx);
3528 for (row, indent) in indents {
3529 if indent.len == 0 {
3530 continue;
3531 }
3532
3533 let text = match indent.kind {
3534 IndentKind::Space => " ".repeat(indent.len as usize),
3535 IndentKind::Tab => "\t".repeat(indent.len as usize),
3536 };
3537 let point = Point::new(row.0, 0);
3538 indent_edits.push((point..point, text));
3539 }
3540 }
3541 editor.edit(indent_edits, cx);
3542 });
3543 }
3544
3545 pub fn insert(&mut self, text: &str, cx: &mut ViewContext<Self>) {
3546 let autoindent = text.is_empty().not().then(|| AutoindentMode::Block {
3547 original_indent_columns: Vec::new(),
3548 });
3549 self.insert_with_autoindent_mode(text, autoindent, cx);
3550 }
3551
3552 fn insert_with_autoindent_mode(
3553 &mut self,
3554 text: &str,
3555 autoindent_mode: Option<AutoindentMode>,
3556 cx: &mut ViewContext<Self>,
3557 ) {
3558 if self.read_only(cx) {
3559 return;
3560 }
3561
3562 let text: Arc<str> = text.into();
3563 self.transact(cx, |this, cx| {
3564 let old_selections = this.selections.all_adjusted(cx);
3565 let selection_anchors = this.buffer.update(cx, |buffer, cx| {
3566 let anchors = {
3567 let snapshot = buffer.read(cx);
3568 old_selections
3569 .iter()
3570 .map(|s| {
3571 let anchor = snapshot.anchor_after(s.head());
3572 s.map(|_| anchor)
3573 })
3574 .collect::<Vec<_>>()
3575 };
3576 buffer.edit(
3577 old_selections
3578 .iter()
3579 .map(|s| (s.start..s.end, text.clone())),
3580 autoindent_mode,
3581 cx,
3582 );
3583 anchors
3584 });
3585
3586 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
3587 s.select_anchors(selection_anchors);
3588 })
3589 });
3590 }
3591
3592 fn trigger_completion_on_input(
3593 &mut self,
3594 text: &str,
3595 trigger_in_words: bool,
3596 cx: &mut ViewContext<Self>,
3597 ) {
3598 if self.is_completion_trigger(text, trigger_in_words, cx) {
3599 self.show_completions(
3600 &ShowCompletions {
3601 trigger: text.chars().last(),
3602 },
3603 cx,
3604 );
3605 } else {
3606 self.hide_context_menu(cx);
3607 }
3608 }
3609
3610 fn is_completion_trigger(
3611 &self,
3612 text: &str,
3613 trigger_in_words: bool,
3614 cx: &mut ViewContext<Self>,
3615 ) -> bool {
3616 let position = self.selections.newest_anchor().head();
3617 let multibuffer = self.buffer.read(cx);
3618 let Some(buffer) = position
3619 .buffer_id
3620 .and_then(|buffer_id| multibuffer.buffer(buffer_id).clone())
3621 else {
3622 return false;
3623 };
3624
3625 if let Some(completion_provider) = &self.completion_provider {
3626 completion_provider.is_completion_trigger(
3627 &buffer,
3628 position.text_anchor,
3629 text,
3630 trigger_in_words,
3631 cx,
3632 )
3633 } else {
3634 false
3635 }
3636 }
3637
3638 /// If any empty selections is touching the start of its innermost containing autoclose
3639 /// region, expand it to select the brackets.
3640 fn select_autoclose_pair(&mut self, cx: &mut ViewContext<Self>) {
3641 let selections = self.selections.all::<usize>(cx);
3642 let buffer = self.buffer.read(cx).read(cx);
3643 let new_selections = self
3644 .selections_with_autoclose_regions(selections, &buffer)
3645 .map(|(mut selection, region)| {
3646 if !selection.is_empty() {
3647 return selection;
3648 }
3649
3650 if let Some(region) = region {
3651 let mut range = region.range.to_offset(&buffer);
3652 if selection.start == range.start && range.start >= region.pair.start.len() {
3653 range.start -= region.pair.start.len();
3654 if buffer.contains_str_at(range.start, ®ion.pair.start)
3655 && buffer.contains_str_at(range.end, ®ion.pair.end)
3656 {
3657 range.end += region.pair.end.len();
3658 selection.start = range.start;
3659 selection.end = range.end;
3660
3661 return selection;
3662 }
3663 }
3664 }
3665
3666 let always_treat_brackets_as_autoclosed = buffer
3667 .settings_at(selection.start, cx)
3668 .always_treat_brackets_as_autoclosed;
3669
3670 if !always_treat_brackets_as_autoclosed {
3671 return selection;
3672 }
3673
3674 if let Some(scope) = buffer.language_scope_at(selection.start) {
3675 for (pair, enabled) in scope.brackets() {
3676 if !enabled || !pair.close {
3677 continue;
3678 }
3679
3680 if buffer.contains_str_at(selection.start, &pair.end) {
3681 let pair_start_len = pair.start.len();
3682 if buffer.contains_str_at(selection.start - pair_start_len, &pair.start)
3683 {
3684 selection.start -= pair_start_len;
3685 selection.end += pair.end.len();
3686
3687 return selection;
3688 }
3689 }
3690 }
3691 }
3692
3693 selection
3694 })
3695 .collect();
3696
3697 drop(buffer);
3698 self.change_selections(None, cx, |selections| selections.select(new_selections));
3699 }
3700
3701 /// Iterate the given selections, and for each one, find the smallest surrounding
3702 /// autoclose region. This uses the ordering of the selections and the autoclose
3703 /// regions to avoid repeated comparisons.
3704 fn selections_with_autoclose_regions<'a, D: ToOffset + Clone>(
3705 &'a self,
3706 selections: impl IntoIterator<Item = Selection<D>>,
3707 buffer: &'a MultiBufferSnapshot,
3708 ) -> impl Iterator<Item = (Selection<D>, Option<&'a AutocloseRegion>)> {
3709 let mut i = 0;
3710 let mut regions = self.autoclose_regions.as_slice();
3711 selections.into_iter().map(move |selection| {
3712 let range = selection.start.to_offset(buffer)..selection.end.to_offset(buffer);
3713
3714 let mut enclosing = None;
3715 while let Some(pair_state) = regions.get(i) {
3716 if pair_state.range.end.to_offset(buffer) < range.start {
3717 regions = ®ions[i + 1..];
3718 i = 0;
3719 } else if pair_state.range.start.to_offset(buffer) > range.end {
3720 break;
3721 } else {
3722 if pair_state.selection_id == selection.id {
3723 enclosing = Some(pair_state);
3724 }
3725 i += 1;
3726 }
3727 }
3728
3729 (selection.clone(), enclosing)
3730 })
3731 }
3732
3733 /// Remove any autoclose regions that no longer contain their selection.
3734 fn invalidate_autoclose_regions(
3735 &mut self,
3736 mut selections: &[Selection<Anchor>],
3737 buffer: &MultiBufferSnapshot,
3738 ) {
3739 self.autoclose_regions.retain(|state| {
3740 let mut i = 0;
3741 while let Some(selection) = selections.get(i) {
3742 if selection.end.cmp(&state.range.start, buffer).is_lt() {
3743 selections = &selections[1..];
3744 continue;
3745 }
3746 if selection.start.cmp(&state.range.end, buffer).is_gt() {
3747 break;
3748 }
3749 if selection.id == state.selection_id {
3750 return true;
3751 } else {
3752 i += 1;
3753 }
3754 }
3755 false
3756 });
3757 }
3758
3759 fn completion_query(buffer: &MultiBufferSnapshot, position: impl ToOffset) -> Option<String> {
3760 let offset = position.to_offset(buffer);
3761 let (word_range, kind) = buffer.surrounding_word(offset);
3762 if offset > word_range.start && kind == Some(CharKind::Word) {
3763 Some(
3764 buffer
3765 .text_for_range(word_range.start..offset)
3766 .collect::<String>(),
3767 )
3768 } else {
3769 None
3770 }
3771 }
3772
3773 pub fn toggle_inlay_hints(&mut self, _: &ToggleInlayHints, cx: &mut ViewContext<Self>) {
3774 self.refresh_inlay_hints(
3775 InlayHintRefreshReason::Toggle(!self.inlay_hint_cache.enabled),
3776 cx,
3777 );
3778 }
3779
3780 pub fn inlay_hints_enabled(&self) -> bool {
3781 self.inlay_hint_cache.enabled
3782 }
3783
3784 fn refresh_inlay_hints(&mut self, reason: InlayHintRefreshReason, cx: &mut ViewContext<Self>) {
3785 if self.project.is_none() || self.mode != EditorMode::Full {
3786 return;
3787 }
3788
3789 let reason_description = reason.description();
3790 let ignore_debounce = matches!(
3791 reason,
3792 InlayHintRefreshReason::SettingsChange(_)
3793 | InlayHintRefreshReason::Toggle(_)
3794 | InlayHintRefreshReason::ExcerptsRemoved(_)
3795 );
3796 let (invalidate_cache, required_languages) = match reason {
3797 InlayHintRefreshReason::Toggle(enabled) => {
3798 self.inlay_hint_cache.enabled = enabled;
3799 if enabled {
3800 (InvalidationStrategy::RefreshRequested, None)
3801 } else {
3802 self.inlay_hint_cache.clear();
3803 self.splice_inlays(
3804 self.visible_inlay_hints(cx)
3805 .iter()
3806 .map(|inlay| inlay.id)
3807 .collect(),
3808 Vec::new(),
3809 cx,
3810 );
3811 return;
3812 }
3813 }
3814 InlayHintRefreshReason::SettingsChange(new_settings) => {
3815 match self.inlay_hint_cache.update_settings(
3816 &self.buffer,
3817 new_settings,
3818 self.visible_inlay_hints(cx),
3819 cx,
3820 ) {
3821 ControlFlow::Break(Some(InlaySplice {
3822 to_remove,
3823 to_insert,
3824 })) => {
3825 self.splice_inlays(to_remove, to_insert, cx);
3826 return;
3827 }
3828 ControlFlow::Break(None) => return,
3829 ControlFlow::Continue(()) => (InvalidationStrategy::RefreshRequested, None),
3830 }
3831 }
3832 InlayHintRefreshReason::ExcerptsRemoved(excerpts_removed) => {
3833 if let Some(InlaySplice {
3834 to_remove,
3835 to_insert,
3836 }) = self.inlay_hint_cache.remove_excerpts(excerpts_removed)
3837 {
3838 self.splice_inlays(to_remove, to_insert, cx);
3839 }
3840 return;
3841 }
3842 InlayHintRefreshReason::NewLinesShown => (InvalidationStrategy::None, None),
3843 InlayHintRefreshReason::BufferEdited(buffer_languages) => {
3844 (InvalidationStrategy::BufferEdited, Some(buffer_languages))
3845 }
3846 InlayHintRefreshReason::RefreshRequested => {
3847 (InvalidationStrategy::RefreshRequested, None)
3848 }
3849 };
3850
3851 if let Some(InlaySplice {
3852 to_remove,
3853 to_insert,
3854 }) = self.inlay_hint_cache.spawn_hint_refresh(
3855 reason_description,
3856 self.excerpts_for_inlay_hints_query(required_languages.as_ref(), cx),
3857 invalidate_cache,
3858 ignore_debounce,
3859 cx,
3860 ) {
3861 self.splice_inlays(to_remove, to_insert, cx);
3862 }
3863 }
3864
3865 fn visible_inlay_hints(&self, cx: &ViewContext<'_, Editor>) -> Vec<Inlay> {
3866 self.display_map
3867 .read(cx)
3868 .current_inlays()
3869 .filter(move |inlay| matches!(inlay.id, InlayId::Hint(_)))
3870 .cloned()
3871 .collect()
3872 }
3873
3874 pub fn excerpts_for_inlay_hints_query(
3875 &self,
3876 restrict_to_languages: Option<&HashSet<Arc<Language>>>,
3877 cx: &mut ViewContext<Editor>,
3878 ) -> HashMap<ExcerptId, (Model<Buffer>, clock::Global, Range<usize>)> {
3879 let Some(project) = self.project.as_ref() else {
3880 return HashMap::default();
3881 };
3882 let project = project.read(cx);
3883 let multi_buffer = self.buffer().read(cx);
3884 let multi_buffer_snapshot = multi_buffer.snapshot(cx);
3885 let multi_buffer_visible_start = self
3886 .scroll_manager
3887 .anchor()
3888 .anchor
3889 .to_point(&multi_buffer_snapshot);
3890 let multi_buffer_visible_end = multi_buffer_snapshot.clip_point(
3891 multi_buffer_visible_start
3892 + Point::new(self.visible_line_count().unwrap_or(0.).ceil() as u32, 0),
3893 Bias::Left,
3894 );
3895 let multi_buffer_visible_range = multi_buffer_visible_start..multi_buffer_visible_end;
3896 multi_buffer
3897 .range_to_buffer_ranges(multi_buffer_visible_range, cx)
3898 .into_iter()
3899 .filter(|(_, excerpt_visible_range, _)| !excerpt_visible_range.is_empty())
3900 .filter_map(|(buffer_handle, excerpt_visible_range, excerpt_id)| {
3901 let buffer = buffer_handle.read(cx);
3902 let buffer_file = project::File::from_dyn(buffer.file())?;
3903 let buffer_worktree = project.worktree_for_id(buffer_file.worktree_id(cx), cx)?;
3904 let worktree_entry = buffer_worktree
3905 .read(cx)
3906 .entry_for_id(buffer_file.project_entry_id(cx)?)?;
3907 if worktree_entry.is_ignored {
3908 return None;
3909 }
3910
3911 let language = buffer.language()?;
3912 if let Some(restrict_to_languages) = restrict_to_languages {
3913 if !restrict_to_languages.contains(language) {
3914 return None;
3915 }
3916 }
3917 Some((
3918 excerpt_id,
3919 (
3920 buffer_handle,
3921 buffer.version().clone(),
3922 excerpt_visible_range,
3923 ),
3924 ))
3925 })
3926 .collect()
3927 }
3928
3929 pub fn text_layout_details(&self, cx: &WindowContext) -> TextLayoutDetails {
3930 TextLayoutDetails {
3931 text_system: cx.text_system().clone(),
3932 editor_style: self.style.clone().unwrap(),
3933 rem_size: cx.rem_size(),
3934 scroll_anchor: self.scroll_manager.anchor(),
3935 visible_rows: self.visible_line_count(),
3936 vertical_scroll_margin: self.scroll_manager.vertical_scroll_margin,
3937 }
3938 }
3939
3940 fn splice_inlays(
3941 &self,
3942 to_remove: Vec<InlayId>,
3943 to_insert: Vec<Inlay>,
3944 cx: &mut ViewContext<Self>,
3945 ) {
3946 self.display_map.update(cx, |display_map, cx| {
3947 display_map.splice_inlays(to_remove, to_insert, cx);
3948 });
3949 cx.notify();
3950 }
3951
3952 fn trigger_on_type_formatting(
3953 &self,
3954 input: String,
3955 cx: &mut ViewContext<Self>,
3956 ) -> Option<Task<Result<()>>> {
3957 if input.len() != 1 {
3958 return None;
3959 }
3960
3961 let project = self.project.as_ref()?;
3962 let position = self.selections.newest_anchor().head();
3963 let (buffer, buffer_position) = self
3964 .buffer
3965 .read(cx)
3966 .text_anchor_for_position(position, cx)?;
3967
3968 // OnTypeFormatting returns a list of edits, no need to pass them between Zed instances,
3969 // hence we do LSP request & edit on host side only — add formats to host's history.
3970 let push_to_lsp_host_history = true;
3971 // If this is not the host, append its history with new edits.
3972 let push_to_client_history = project.read(cx).is_remote();
3973
3974 let on_type_formatting = project.update(cx, |project, cx| {
3975 project.on_type_format(
3976 buffer.clone(),
3977 buffer_position,
3978 input,
3979 push_to_lsp_host_history,
3980 cx,
3981 )
3982 });
3983 Some(cx.spawn(|editor, mut cx| async move {
3984 if let Some(transaction) = on_type_formatting.await? {
3985 if push_to_client_history {
3986 buffer
3987 .update(&mut cx, |buffer, _| {
3988 buffer.push_transaction(transaction, Instant::now());
3989 })
3990 .ok();
3991 }
3992 editor.update(&mut cx, |editor, cx| {
3993 editor.refresh_document_highlights(cx);
3994 })?;
3995 }
3996 Ok(())
3997 }))
3998 }
3999
4000 pub fn show_completions(&mut self, options: &ShowCompletions, cx: &mut ViewContext<Self>) {
4001 if self.pending_rename.is_some() {
4002 return;
4003 }
4004
4005 let Some(provider) = self.completion_provider.as_ref() else {
4006 return;
4007 };
4008
4009 let position = self.selections.newest_anchor().head();
4010 let (buffer, buffer_position) =
4011 if let Some(output) = self.buffer.read(cx).text_anchor_for_position(position, cx) {
4012 output
4013 } else {
4014 return;
4015 };
4016
4017 let query = Self::completion_query(&self.buffer.read(cx).read(cx), position);
4018 let is_followup_invoke = {
4019 let context_menu_state = self.context_menu.read();
4020 matches!(
4021 context_menu_state.deref(),
4022 Some(ContextMenu::Completions(_))
4023 )
4024 };
4025 let trigger_kind = match (options.trigger, is_followup_invoke) {
4026 (_, true) => CompletionTriggerKind::TRIGGER_FOR_INCOMPLETE_COMPLETIONS,
4027 (Some(_), _) => CompletionTriggerKind::TRIGGER_CHARACTER,
4028 _ => CompletionTriggerKind::INVOKED,
4029 };
4030 let completion_context = CompletionContext {
4031 trigger_character: options.trigger.and_then(|c| {
4032 if trigger_kind == CompletionTriggerKind::TRIGGER_CHARACTER {
4033 Some(String::from(c))
4034 } else {
4035 None
4036 }
4037 }),
4038 trigger_kind,
4039 };
4040 let completions = provider.completions(&buffer, buffer_position, completion_context, cx);
4041
4042 let id = post_inc(&mut self.next_completion_id);
4043 let task = cx.spawn(|this, mut cx| {
4044 async move {
4045 this.update(&mut cx, |this, _| {
4046 this.completion_tasks.retain(|(task_id, _)| *task_id >= id);
4047 })?;
4048 let completions = completions.await.log_err();
4049 let menu = if let Some(completions) = completions {
4050 let mut menu = CompletionsMenu {
4051 id,
4052 initial_position: position,
4053 match_candidates: completions
4054 .iter()
4055 .enumerate()
4056 .map(|(id, completion)| {
4057 StringMatchCandidate::new(
4058 id,
4059 completion.label.text[completion.label.filter_range.clone()]
4060 .into(),
4061 )
4062 })
4063 .collect(),
4064 buffer: buffer.clone(),
4065 completions: Arc::new(RwLock::new(completions.into())),
4066 matches: Vec::new().into(),
4067 selected_item: 0,
4068 scroll_handle: UniformListScrollHandle::new(),
4069 selected_completion_documentation_resolve_debounce: Arc::new(Mutex::new(
4070 DebouncedDelay::new(),
4071 )),
4072 };
4073 menu.filter(query.as_deref(), cx.background_executor().clone())
4074 .await;
4075
4076 if menu.matches.is_empty() {
4077 None
4078 } else {
4079 this.update(&mut cx, |editor, cx| {
4080 let completions = menu.completions.clone();
4081 let matches = menu.matches.clone();
4082
4083 let delay_ms = EditorSettings::get_global(cx)
4084 .completion_documentation_secondary_query_debounce;
4085 let delay = Duration::from_millis(delay_ms);
4086 editor
4087 .completion_documentation_pre_resolve_debounce
4088 .fire_new(delay, cx, |editor, cx| {
4089 CompletionsMenu::pre_resolve_completion_documentation(
4090 buffer,
4091 completions,
4092 matches,
4093 editor,
4094 cx,
4095 )
4096 });
4097 })
4098 .ok();
4099 Some(menu)
4100 }
4101 } else {
4102 None
4103 };
4104
4105 this.update(&mut cx, |this, cx| {
4106 let mut context_menu = this.context_menu.write();
4107 match context_menu.as_ref() {
4108 None => {}
4109
4110 Some(ContextMenu::Completions(prev_menu)) => {
4111 if prev_menu.id > id {
4112 return;
4113 }
4114 }
4115
4116 _ => return,
4117 }
4118
4119 if this.focus_handle.is_focused(cx) && menu.is_some() {
4120 let menu = menu.unwrap();
4121 *context_menu = Some(ContextMenu::Completions(menu));
4122 drop(context_menu);
4123 this.discard_inline_completion(false, cx);
4124 cx.notify();
4125 } else if this.completion_tasks.len() <= 1 {
4126 // If there are no more completion tasks and the last menu was
4127 // empty, we should hide it. If it was already hidden, we should
4128 // also show the copilot completion when available.
4129 drop(context_menu);
4130 if this.hide_context_menu(cx).is_none() {
4131 this.update_visible_inline_completion(cx);
4132 }
4133 }
4134 })?;
4135
4136 Ok::<_, anyhow::Error>(())
4137 }
4138 .log_err()
4139 });
4140
4141 self.completion_tasks.push((id, task));
4142 }
4143
4144 pub fn confirm_completion(
4145 &mut self,
4146 action: &ConfirmCompletion,
4147 cx: &mut ViewContext<Self>,
4148 ) -> Option<Task<Result<()>>> {
4149 use language::ToOffset as _;
4150
4151 let completions_menu = if let ContextMenu::Completions(menu) = self.hide_context_menu(cx)? {
4152 menu
4153 } else {
4154 return None;
4155 };
4156
4157 let mat = completions_menu
4158 .matches
4159 .get(action.item_ix.unwrap_or(completions_menu.selected_item))?;
4160 let buffer_handle = completions_menu.buffer;
4161 let completions = completions_menu.completions.read();
4162 let completion = completions.get(mat.candidate_id)?;
4163 cx.stop_propagation();
4164
4165 let snippet;
4166 let text;
4167
4168 if completion.is_snippet() {
4169 snippet = Some(Snippet::parse(&completion.new_text).log_err()?);
4170 text = snippet.as_ref().unwrap().text.clone();
4171 } else {
4172 snippet = None;
4173 text = completion.new_text.clone();
4174 };
4175 let selections = self.selections.all::<usize>(cx);
4176 let buffer = buffer_handle.read(cx);
4177 let old_range = completion.old_range.to_offset(buffer);
4178 let old_text = buffer.text_for_range(old_range.clone()).collect::<String>();
4179
4180 let newest_selection = self.selections.newest_anchor();
4181 if newest_selection.start.buffer_id != Some(buffer_handle.read(cx).remote_id()) {
4182 return None;
4183 }
4184
4185 let lookbehind = newest_selection
4186 .start
4187 .text_anchor
4188 .to_offset(buffer)
4189 .saturating_sub(old_range.start);
4190 let lookahead = old_range
4191 .end
4192 .saturating_sub(newest_selection.end.text_anchor.to_offset(buffer));
4193 let mut common_prefix_len = old_text
4194 .bytes()
4195 .zip(text.bytes())
4196 .take_while(|(a, b)| a == b)
4197 .count();
4198
4199 let snapshot = self.buffer.read(cx).snapshot(cx);
4200 let mut range_to_replace: Option<Range<isize>> = None;
4201 let mut ranges = Vec::new();
4202 let mut linked_edits = HashMap::<_, Vec<_>>::default();
4203 for selection in &selections {
4204 if snapshot.contains_str_at(selection.start.saturating_sub(lookbehind), &old_text) {
4205 let start = selection.start.saturating_sub(lookbehind);
4206 let end = selection.end + lookahead;
4207 if selection.id == newest_selection.id {
4208 range_to_replace = Some(
4209 ((start + common_prefix_len) as isize - selection.start as isize)
4210 ..(end as isize - selection.start as isize),
4211 );
4212 }
4213 ranges.push(start + common_prefix_len..end);
4214 } else {
4215 common_prefix_len = 0;
4216 ranges.clear();
4217 ranges.extend(selections.iter().map(|s| {
4218 if s.id == newest_selection.id {
4219 range_to_replace = Some(
4220 old_range.start.to_offset_utf16(&snapshot).0 as isize
4221 - selection.start as isize
4222 ..old_range.end.to_offset_utf16(&snapshot).0 as isize
4223 - selection.start as isize,
4224 );
4225 old_range.clone()
4226 } else {
4227 s.start..s.end
4228 }
4229 }));
4230 break;
4231 }
4232 if !self.linked_edit_ranges.is_empty() {
4233 let start_anchor = snapshot.anchor_before(selection.head());
4234 let end_anchor = snapshot.anchor_after(selection.tail());
4235 if let Some(ranges) = self
4236 .linked_editing_ranges_for(start_anchor.text_anchor..end_anchor.text_anchor, cx)
4237 {
4238 for (buffer, edits) in ranges {
4239 linked_edits.entry(buffer.clone()).or_default().extend(
4240 edits
4241 .into_iter()
4242 .map(|range| (range, text[common_prefix_len..].to_owned())),
4243 );
4244 }
4245 }
4246 }
4247 }
4248 let text = &text[common_prefix_len..];
4249
4250 cx.emit(EditorEvent::InputHandled {
4251 utf16_range_to_replace: range_to_replace,
4252 text: text.into(),
4253 });
4254
4255 self.transact(cx, |this, cx| {
4256 if let Some(mut snippet) = snippet {
4257 snippet.text = text.to_string();
4258 for tabstop in snippet.tabstops.iter_mut().flatten() {
4259 tabstop.start -= common_prefix_len as isize;
4260 tabstop.end -= common_prefix_len as isize;
4261 }
4262
4263 this.insert_snippet(&ranges, snippet, cx).log_err();
4264 } else {
4265 this.buffer.update(cx, |buffer, cx| {
4266 buffer.edit(
4267 ranges.iter().map(|range| (range.clone(), text)),
4268 this.autoindent_mode.clone(),
4269 cx,
4270 );
4271 });
4272 }
4273 for (buffer, edits) in linked_edits {
4274 buffer.update(cx, |buffer, cx| {
4275 let snapshot = buffer.snapshot();
4276 let edits = edits
4277 .into_iter()
4278 .map(|(range, text)| {
4279 use text::ToPoint as TP;
4280 let end_point = TP::to_point(&range.end, &snapshot);
4281 let start_point = TP::to_point(&range.start, &snapshot);
4282 (start_point..end_point, text)
4283 })
4284 .sorted_by_key(|(range, _)| range.start)
4285 .collect::<Vec<_>>();
4286 buffer.edit(edits, None, cx);
4287 })
4288 }
4289
4290 this.refresh_inline_completion(true, cx);
4291 });
4292
4293 if let Some(confirm) = completion.confirm.as_ref() {
4294 (confirm)(cx);
4295 }
4296
4297 if completion.show_new_completions_on_confirm {
4298 self.show_completions(&ShowCompletions { trigger: None }, cx);
4299 }
4300
4301 let provider = self.completion_provider.as_ref()?;
4302 let apply_edits = provider.apply_additional_edits_for_completion(
4303 buffer_handle,
4304 completion.clone(),
4305 true,
4306 cx,
4307 );
4308 Some(cx.foreground_executor().spawn(async move {
4309 apply_edits.await?;
4310 Ok(())
4311 }))
4312 }
4313
4314 pub fn toggle_code_actions(&mut self, action: &ToggleCodeActions, cx: &mut ViewContext<Self>) {
4315 let mut context_menu = self.context_menu.write();
4316 if let Some(ContextMenu::CodeActions(code_actions)) = context_menu.as_ref() {
4317 if code_actions.deployed_from_indicator == action.deployed_from_indicator {
4318 // Toggle if we're selecting the same one
4319 *context_menu = None;
4320 cx.notify();
4321 return;
4322 } else {
4323 // Otherwise, clear it and start a new one
4324 *context_menu = None;
4325 cx.notify();
4326 }
4327 }
4328 drop(context_menu);
4329 let snapshot = self.snapshot(cx);
4330 let deployed_from_indicator = action.deployed_from_indicator;
4331 let mut task = self.code_actions_task.take();
4332 let action = action.clone();
4333 cx.spawn(|editor, mut cx| async move {
4334 while let Some(prev_task) = task {
4335 prev_task.await;
4336 task = editor.update(&mut cx, |this, _| this.code_actions_task.take())?;
4337 }
4338
4339 let spawned_test_task = editor.update(&mut cx, |editor, cx| {
4340 if editor.focus_handle.is_focused(cx) {
4341 let multibuffer_point = action
4342 .deployed_from_indicator
4343 .map(|row| DisplayPoint::new(row, 0).to_point(&snapshot))
4344 .unwrap_or_else(|| editor.selections.newest::<Point>(cx).head());
4345 let (buffer, buffer_row) = snapshot
4346 .buffer_snapshot
4347 .buffer_line_for_row(MultiBufferRow(multibuffer_point.row))
4348 .and_then(|(buffer_snapshot, range)| {
4349 editor
4350 .buffer
4351 .read(cx)
4352 .buffer(buffer_snapshot.remote_id())
4353 .map(|buffer| (buffer, range.start.row))
4354 })?;
4355 let (_, code_actions) = editor
4356 .available_code_actions
4357 .clone()
4358 .and_then(|(location, code_actions)| {
4359 let snapshot = location.buffer.read(cx).snapshot();
4360 let point_range = location.range.to_point(&snapshot);
4361 let point_range = point_range.start.row..=point_range.end.row;
4362 if point_range.contains(&buffer_row) {
4363 Some((location, code_actions))
4364 } else {
4365 None
4366 }
4367 })
4368 .unzip();
4369 let buffer_id = buffer.read(cx).remote_id();
4370 let tasks = editor
4371 .tasks
4372 .get(&(buffer_id, buffer_row))
4373 .map(|t| Arc::new(t.to_owned()));
4374 if tasks.is_none() && code_actions.is_none() {
4375 return None;
4376 }
4377
4378 editor.completion_tasks.clear();
4379 editor.discard_inline_completion(false, cx);
4380 let task_context =
4381 tasks
4382 .as_ref()
4383 .zip(editor.project.clone())
4384 .map(|(tasks, project)| {
4385 let position = Point::new(buffer_row, tasks.column);
4386 let range_start = buffer.read(cx).anchor_at(position, Bias::Right);
4387 let location = Location {
4388 buffer: buffer.clone(),
4389 range: range_start..range_start,
4390 };
4391 // Fill in the environmental variables from the tree-sitter captures
4392 let mut captured_task_variables = TaskVariables::default();
4393 for (capture_name, value) in tasks.extra_variables.clone() {
4394 captured_task_variables.insert(
4395 task::VariableName::Custom(capture_name.into()),
4396 value.clone(),
4397 );
4398 }
4399 project.update(cx, |project, cx| {
4400 project.task_context_for_location(
4401 captured_task_variables,
4402 location,
4403 cx,
4404 )
4405 })
4406 });
4407
4408 Some(cx.spawn(|editor, mut cx| async move {
4409 let task_context = match task_context {
4410 Some(task_context) => task_context.await,
4411 None => None,
4412 };
4413 let resolved_tasks =
4414 tasks.zip(task_context).map(|(tasks, task_context)| {
4415 Arc::new(ResolvedTasks {
4416 templates: tasks
4417 .templates
4418 .iter()
4419 .filter_map(|(kind, template)| {
4420 template
4421 .resolve_task(&kind.to_id_base(), &task_context)
4422 .map(|task| (kind.clone(), task))
4423 })
4424 .collect(),
4425 position: snapshot.buffer_snapshot.anchor_before(Point::new(
4426 multibuffer_point.row,
4427 tasks.column,
4428 )),
4429 })
4430 });
4431 let spawn_straight_away = resolved_tasks
4432 .as_ref()
4433 .map_or(false, |tasks| tasks.templates.len() == 1)
4434 && code_actions
4435 .as_ref()
4436 .map_or(true, |actions| actions.is_empty());
4437 if let Some(task) = editor
4438 .update(&mut cx, |editor, cx| {
4439 *editor.context_menu.write() =
4440 Some(ContextMenu::CodeActions(CodeActionsMenu {
4441 buffer,
4442 actions: CodeActionContents {
4443 tasks: resolved_tasks,
4444 actions: code_actions,
4445 },
4446 selected_item: Default::default(),
4447 scroll_handle: UniformListScrollHandle::default(),
4448 deployed_from_indicator,
4449 }));
4450 if spawn_straight_away {
4451 if let Some(task) = editor.confirm_code_action(
4452 &ConfirmCodeAction { item_ix: Some(0) },
4453 cx,
4454 ) {
4455 cx.notify();
4456 return task;
4457 }
4458 }
4459 cx.notify();
4460 Task::ready(Ok(()))
4461 })
4462 .ok()
4463 {
4464 task.await
4465 } else {
4466 Ok(())
4467 }
4468 }))
4469 } else {
4470 Some(Task::ready(Ok(())))
4471 }
4472 })?;
4473 if let Some(task) = spawned_test_task {
4474 task.await?;
4475 }
4476
4477 Ok::<_, anyhow::Error>(())
4478 })
4479 .detach_and_log_err(cx);
4480 }
4481
4482 pub fn confirm_code_action(
4483 &mut self,
4484 action: &ConfirmCodeAction,
4485 cx: &mut ViewContext<Self>,
4486 ) -> Option<Task<Result<()>>> {
4487 let actions_menu = if let ContextMenu::CodeActions(menu) = self.hide_context_menu(cx)? {
4488 menu
4489 } else {
4490 return None;
4491 };
4492 let action_ix = action.item_ix.unwrap_or(actions_menu.selected_item);
4493 let action = actions_menu.actions.get(action_ix)?;
4494 let title = action.label();
4495 let buffer = actions_menu.buffer;
4496 let workspace = self.workspace()?;
4497
4498 match action {
4499 CodeActionsItem::Task(task_source_kind, resolved_task) => {
4500 workspace.update(cx, |workspace, cx| {
4501 workspace::tasks::schedule_resolved_task(
4502 workspace,
4503 task_source_kind,
4504 resolved_task,
4505 false,
4506 cx,
4507 );
4508
4509 Some(Task::ready(Ok(())))
4510 })
4511 }
4512 CodeActionsItem::CodeAction(action) => {
4513 let apply_code_actions = workspace
4514 .read(cx)
4515 .project()
4516 .clone()
4517 .update(cx, |project, cx| {
4518 project.apply_code_action(buffer, action, true, cx)
4519 });
4520 let workspace = workspace.downgrade();
4521 Some(cx.spawn(|editor, cx| async move {
4522 let project_transaction = apply_code_actions.await?;
4523 Self::open_project_transaction(
4524 &editor,
4525 workspace,
4526 project_transaction,
4527 title,
4528 cx,
4529 )
4530 .await
4531 }))
4532 }
4533 }
4534 }
4535
4536 pub async fn open_project_transaction(
4537 this: &WeakView<Editor>,
4538 workspace: WeakView<Workspace>,
4539 transaction: ProjectTransaction,
4540 title: String,
4541 mut cx: AsyncWindowContext,
4542 ) -> Result<()> {
4543 let replica_id = this.update(&mut cx, |this, cx| this.replica_id(cx))?;
4544
4545 let mut entries = transaction.0.into_iter().collect::<Vec<_>>();
4546 cx.update(|cx| {
4547 entries.sort_unstable_by_key(|(buffer, _)| {
4548 buffer.read(cx).file().map(|f| f.path().clone())
4549 });
4550 })?;
4551
4552 // If the project transaction's edits are all contained within this editor, then
4553 // avoid opening a new editor to display them.
4554
4555 if let Some((buffer, transaction)) = entries.first() {
4556 if entries.len() == 1 {
4557 let excerpt = this.update(&mut cx, |editor, cx| {
4558 editor
4559 .buffer()
4560 .read(cx)
4561 .excerpt_containing(editor.selections.newest_anchor().head(), cx)
4562 })?;
4563 if let Some((_, excerpted_buffer, excerpt_range)) = excerpt {
4564 if excerpted_buffer == *buffer {
4565 let all_edits_within_excerpt = buffer.read_with(&cx, |buffer, _| {
4566 let excerpt_range = excerpt_range.to_offset(buffer);
4567 buffer
4568 .edited_ranges_for_transaction::<usize>(transaction)
4569 .all(|range| {
4570 excerpt_range.start <= range.start
4571 && excerpt_range.end >= range.end
4572 })
4573 })?;
4574
4575 if all_edits_within_excerpt {
4576 return Ok(());
4577 }
4578 }
4579 }
4580 }
4581 } else {
4582 return Ok(());
4583 }
4584
4585 let mut ranges_to_highlight = Vec::new();
4586 let excerpt_buffer = cx.new_model(|cx| {
4587 let mut multibuffer =
4588 MultiBuffer::new(replica_id, Capability::ReadWrite).with_title(title);
4589 for (buffer_handle, transaction) in &entries {
4590 let buffer = buffer_handle.read(cx);
4591 ranges_to_highlight.extend(
4592 multibuffer.push_excerpts_with_context_lines(
4593 buffer_handle.clone(),
4594 buffer
4595 .edited_ranges_for_transaction::<usize>(transaction)
4596 .collect(),
4597 DEFAULT_MULTIBUFFER_CONTEXT,
4598 cx,
4599 ),
4600 );
4601 }
4602 multibuffer.push_transaction(entries.iter().map(|(b, t)| (b, t)), cx);
4603 multibuffer
4604 })?;
4605
4606 workspace.update(&mut cx, |workspace, cx| {
4607 let project = workspace.project().clone();
4608 let editor =
4609 cx.new_view(|cx| Editor::for_multibuffer(excerpt_buffer, Some(project), true, cx));
4610 workspace.add_item_to_active_pane(Box::new(editor.clone()), None, cx);
4611 editor.update(cx, |editor, cx| {
4612 editor.highlight_background::<Self>(
4613 &ranges_to_highlight,
4614 |theme| theme.editor_highlighted_line_background,
4615 cx,
4616 );
4617 });
4618 })?;
4619
4620 Ok(())
4621 }
4622
4623 fn refresh_code_actions(&mut self, cx: &mut ViewContext<Self>) -> Option<()> {
4624 let project = self.project.clone()?;
4625 let buffer = self.buffer.read(cx);
4626 let newest_selection = self.selections.newest_anchor().clone();
4627 let (start_buffer, start) = buffer.text_anchor_for_position(newest_selection.start, cx)?;
4628 let (end_buffer, end) = buffer.text_anchor_for_position(newest_selection.end, cx)?;
4629 if start_buffer != end_buffer {
4630 return None;
4631 }
4632
4633 self.code_actions_task = Some(cx.spawn(|this, mut cx| async move {
4634 cx.background_executor()
4635 .timer(CODE_ACTIONS_DEBOUNCE_TIMEOUT)
4636 .await;
4637
4638 let actions = if let Ok(code_actions) = project.update(&mut cx, |project, cx| {
4639 project.code_actions(&start_buffer, start..end, cx)
4640 }) {
4641 code_actions.await
4642 } else {
4643 Vec::new()
4644 };
4645
4646 this.update(&mut cx, |this, cx| {
4647 this.available_code_actions = if actions.is_empty() {
4648 None
4649 } else {
4650 Some((
4651 Location {
4652 buffer: start_buffer,
4653 range: start..end,
4654 },
4655 actions.into(),
4656 ))
4657 };
4658 cx.notify();
4659 })
4660 .log_err();
4661 }));
4662 None
4663 }
4664
4665 fn start_inline_blame_timer(&mut self, cx: &mut ViewContext<Self>) {
4666 if let Some(delay) = ProjectSettings::get_global(cx).git.inline_blame_delay() {
4667 self.show_git_blame_inline = false;
4668
4669 self.show_git_blame_inline_delay_task = Some(cx.spawn(|this, mut cx| async move {
4670 cx.background_executor().timer(delay).await;
4671
4672 this.update(&mut cx, |this, cx| {
4673 this.show_git_blame_inline = true;
4674 cx.notify();
4675 })
4676 .log_err();
4677 }));
4678 }
4679 }
4680
4681 fn refresh_document_highlights(&mut self, cx: &mut ViewContext<Self>) -> Option<()> {
4682 if self.pending_rename.is_some() {
4683 return None;
4684 }
4685
4686 let project = self.project.clone()?;
4687 let buffer = self.buffer.read(cx);
4688 let newest_selection = self.selections.newest_anchor().clone();
4689 let cursor_position = newest_selection.head();
4690 let (cursor_buffer, cursor_buffer_position) =
4691 buffer.text_anchor_for_position(cursor_position, cx)?;
4692 let (tail_buffer, _) = buffer.text_anchor_for_position(newest_selection.tail(), cx)?;
4693 if cursor_buffer != tail_buffer {
4694 return None;
4695 }
4696
4697 self.document_highlights_task = Some(cx.spawn(|this, mut cx| async move {
4698 cx.background_executor()
4699 .timer(DOCUMENT_HIGHLIGHTS_DEBOUNCE_TIMEOUT)
4700 .await;
4701
4702 let highlights = if let Some(highlights) = project
4703 .update(&mut cx, |project, cx| {
4704 project.document_highlights(&cursor_buffer, cursor_buffer_position, cx)
4705 })
4706 .log_err()
4707 {
4708 highlights.await.log_err()
4709 } else {
4710 None
4711 };
4712
4713 if let Some(highlights) = highlights {
4714 this.update(&mut cx, |this, cx| {
4715 if this.pending_rename.is_some() {
4716 return;
4717 }
4718
4719 let buffer_id = cursor_position.buffer_id;
4720 let buffer = this.buffer.read(cx);
4721 if !buffer
4722 .text_anchor_for_position(cursor_position, cx)
4723 .map_or(false, |(buffer, _)| buffer == cursor_buffer)
4724 {
4725 return;
4726 }
4727
4728 let cursor_buffer_snapshot = cursor_buffer.read(cx);
4729 let mut write_ranges = Vec::new();
4730 let mut read_ranges = Vec::new();
4731 for highlight in highlights {
4732 for (excerpt_id, excerpt_range) in
4733 buffer.excerpts_for_buffer(&cursor_buffer, cx)
4734 {
4735 let start = highlight
4736 .range
4737 .start
4738 .max(&excerpt_range.context.start, cursor_buffer_snapshot);
4739 let end = highlight
4740 .range
4741 .end
4742 .min(&excerpt_range.context.end, cursor_buffer_snapshot);
4743 if start.cmp(&end, cursor_buffer_snapshot).is_ge() {
4744 continue;
4745 }
4746
4747 let range = Anchor {
4748 buffer_id,
4749 excerpt_id: excerpt_id,
4750 text_anchor: start,
4751 }..Anchor {
4752 buffer_id,
4753 excerpt_id,
4754 text_anchor: end,
4755 };
4756 if highlight.kind == lsp::DocumentHighlightKind::WRITE {
4757 write_ranges.push(range);
4758 } else {
4759 read_ranges.push(range);
4760 }
4761 }
4762 }
4763
4764 this.highlight_background::<DocumentHighlightRead>(
4765 &read_ranges,
4766 |theme| theme.editor_document_highlight_read_background,
4767 cx,
4768 );
4769 this.highlight_background::<DocumentHighlightWrite>(
4770 &write_ranges,
4771 |theme| theme.editor_document_highlight_write_background,
4772 cx,
4773 );
4774 cx.notify();
4775 })
4776 .log_err();
4777 }
4778 }));
4779 None
4780 }
4781
4782 fn refresh_inline_completion(
4783 &mut self,
4784 debounce: bool,
4785 cx: &mut ViewContext<Self>,
4786 ) -> Option<()> {
4787 let provider = self.inline_completion_provider()?;
4788 let cursor = self.selections.newest_anchor().head();
4789 let (buffer, cursor_buffer_position) =
4790 self.buffer.read(cx).text_anchor_for_position(cursor, cx)?;
4791 if !self.show_inline_completions
4792 || !provider.is_enabled(&buffer, cursor_buffer_position, cx)
4793 {
4794 self.discard_inline_completion(false, cx);
4795 return None;
4796 }
4797
4798 self.update_visible_inline_completion(cx);
4799 provider.refresh(buffer, cursor_buffer_position, debounce, cx);
4800 Some(())
4801 }
4802
4803 fn cycle_inline_completion(
4804 &mut self,
4805 direction: Direction,
4806 cx: &mut ViewContext<Self>,
4807 ) -> Option<()> {
4808 let provider = self.inline_completion_provider()?;
4809 let cursor = self.selections.newest_anchor().head();
4810 let (buffer, cursor_buffer_position) =
4811 self.buffer.read(cx).text_anchor_for_position(cursor, cx)?;
4812 if !self.show_inline_completions
4813 || !provider.is_enabled(&buffer, cursor_buffer_position, cx)
4814 {
4815 return None;
4816 }
4817
4818 provider.cycle(buffer, cursor_buffer_position, direction, cx);
4819 self.update_visible_inline_completion(cx);
4820
4821 Some(())
4822 }
4823
4824 pub fn show_inline_completion(&mut self, _: &ShowInlineCompletion, cx: &mut ViewContext<Self>) {
4825 if !self.has_active_inline_completion(cx) {
4826 self.refresh_inline_completion(false, cx);
4827 return;
4828 }
4829
4830 self.update_visible_inline_completion(cx);
4831 }
4832
4833 pub fn display_cursor_names(&mut self, _: &DisplayCursorNames, cx: &mut ViewContext<Self>) {
4834 self.show_cursor_names(cx);
4835 }
4836
4837 fn show_cursor_names(&mut self, cx: &mut ViewContext<Self>) {
4838 self.show_cursor_names = true;
4839 cx.notify();
4840 cx.spawn(|this, mut cx| async move {
4841 cx.background_executor().timer(CURSORS_VISIBLE_FOR).await;
4842 this.update(&mut cx, |this, cx| {
4843 this.show_cursor_names = false;
4844 cx.notify()
4845 })
4846 .ok()
4847 })
4848 .detach();
4849 }
4850
4851 pub fn next_inline_completion(&mut self, _: &NextInlineCompletion, cx: &mut ViewContext<Self>) {
4852 if self.has_active_inline_completion(cx) {
4853 self.cycle_inline_completion(Direction::Next, cx);
4854 } else {
4855 let is_copilot_disabled = self.refresh_inline_completion(false, cx).is_none();
4856 if is_copilot_disabled {
4857 cx.propagate();
4858 }
4859 }
4860 }
4861
4862 pub fn previous_inline_completion(
4863 &mut self,
4864 _: &PreviousInlineCompletion,
4865 cx: &mut ViewContext<Self>,
4866 ) {
4867 if self.has_active_inline_completion(cx) {
4868 self.cycle_inline_completion(Direction::Prev, cx);
4869 } else {
4870 let is_copilot_disabled = self.refresh_inline_completion(false, cx).is_none();
4871 if is_copilot_disabled {
4872 cx.propagate();
4873 }
4874 }
4875 }
4876
4877 pub fn accept_inline_completion(
4878 &mut self,
4879 _: &AcceptInlineCompletion,
4880 cx: &mut ViewContext<Self>,
4881 ) {
4882 let Some(completion) = self.take_active_inline_completion(cx) else {
4883 return;
4884 };
4885 if let Some(provider) = self.inline_completion_provider() {
4886 provider.accept(cx);
4887 }
4888
4889 cx.emit(EditorEvent::InputHandled {
4890 utf16_range_to_replace: None,
4891 text: completion.text.to_string().into(),
4892 });
4893 self.insert_with_autoindent_mode(&completion.text.to_string(), None, cx);
4894 self.refresh_inline_completion(true, cx);
4895 cx.notify();
4896 }
4897
4898 pub fn accept_partial_inline_completion(
4899 &mut self,
4900 _: &AcceptPartialInlineCompletion,
4901 cx: &mut ViewContext<Self>,
4902 ) {
4903 if self.selections.count() == 1 && self.has_active_inline_completion(cx) {
4904 if let Some(completion) = self.take_active_inline_completion(cx) {
4905 let mut partial_completion = completion
4906 .text
4907 .chars()
4908 .by_ref()
4909 .take_while(|c| c.is_alphabetic())
4910 .collect::<String>();
4911 if partial_completion.is_empty() {
4912 partial_completion = completion
4913 .text
4914 .chars()
4915 .by_ref()
4916 .take_while(|c| c.is_whitespace() || !c.is_alphabetic())
4917 .collect::<String>();
4918 }
4919
4920 cx.emit(EditorEvent::InputHandled {
4921 utf16_range_to_replace: None,
4922 text: partial_completion.clone().into(),
4923 });
4924 self.insert_with_autoindent_mode(&partial_completion, None, cx);
4925 self.refresh_inline_completion(true, cx);
4926 cx.notify();
4927 }
4928 }
4929 }
4930
4931 fn discard_inline_completion(
4932 &mut self,
4933 should_report_inline_completion_event: bool,
4934 cx: &mut ViewContext<Self>,
4935 ) -> bool {
4936 if let Some(provider) = self.inline_completion_provider() {
4937 provider.discard(should_report_inline_completion_event, cx);
4938 }
4939
4940 self.take_active_inline_completion(cx).is_some()
4941 }
4942
4943 pub fn has_active_inline_completion(&self, cx: &AppContext) -> bool {
4944 if let Some(completion) = self.active_inline_completion.as_ref() {
4945 let buffer = self.buffer.read(cx).read(cx);
4946 completion.position.is_valid(&buffer)
4947 } else {
4948 false
4949 }
4950 }
4951
4952 fn take_active_inline_completion(&mut self, cx: &mut ViewContext<Self>) -> Option<Inlay> {
4953 let completion = self.active_inline_completion.take()?;
4954 self.display_map.update(cx, |map, cx| {
4955 map.splice_inlays(vec![completion.id], Default::default(), cx);
4956 });
4957 let buffer = self.buffer.read(cx).read(cx);
4958
4959 if completion.position.is_valid(&buffer) {
4960 Some(completion)
4961 } else {
4962 None
4963 }
4964 }
4965
4966 fn update_visible_inline_completion(&mut self, cx: &mut ViewContext<Self>) {
4967 let selection = self.selections.newest_anchor();
4968 let cursor = selection.head();
4969
4970 if self.context_menu.read().is_none()
4971 && self.completion_tasks.is_empty()
4972 && selection.start == selection.end
4973 {
4974 if let Some(provider) = self.inline_completion_provider() {
4975 if let Some((buffer, cursor_buffer_position)) =
4976 self.buffer.read(cx).text_anchor_for_position(cursor, cx)
4977 {
4978 if let Some(text) =
4979 provider.active_completion_text(&buffer, cursor_buffer_position, cx)
4980 {
4981 let text = Rope::from(text);
4982 let mut to_remove = Vec::new();
4983 if let Some(completion) = self.active_inline_completion.take() {
4984 to_remove.push(completion.id);
4985 }
4986
4987 let completion_inlay =
4988 Inlay::suggestion(post_inc(&mut self.next_inlay_id), cursor, text);
4989 self.active_inline_completion = Some(completion_inlay.clone());
4990 self.display_map.update(cx, move |map, cx| {
4991 map.splice_inlays(to_remove, vec![completion_inlay], cx)
4992 });
4993 cx.notify();
4994 return;
4995 }
4996 }
4997 }
4998 }
4999
5000 self.discard_inline_completion(false, cx);
5001 }
5002
5003 fn inline_completion_provider(&self) -> Option<Arc<dyn InlineCompletionProviderHandle>> {
5004 Some(self.inline_completion_provider.as_ref()?.provider.clone())
5005 }
5006
5007 fn render_code_actions_indicator(
5008 &self,
5009 _style: &EditorStyle,
5010 row: DisplayRow,
5011 is_active: bool,
5012 cx: &mut ViewContext<Self>,
5013 ) -> Option<IconButton> {
5014 if self.available_code_actions.is_some() {
5015 Some(
5016 IconButton::new("code_actions_indicator", ui::IconName::Bolt)
5017 .shape(ui::IconButtonShape::Square)
5018 .icon_size(IconSize::XSmall)
5019 .icon_color(Color::Muted)
5020 .selected(is_active)
5021 .on_click(cx.listener(move |editor, _e, cx| {
5022 editor.focus(cx);
5023 editor.toggle_code_actions(
5024 &ToggleCodeActions {
5025 deployed_from_indicator: Some(row),
5026 },
5027 cx,
5028 );
5029 })),
5030 )
5031 } else {
5032 None
5033 }
5034 }
5035
5036 fn clear_tasks(&mut self) {
5037 self.tasks.clear()
5038 }
5039
5040 fn insert_tasks(&mut self, key: (BufferId, BufferRow), value: RunnableTasks) {
5041 if let Some(_) = self.tasks.insert(key, value) {
5042 // This case should hopefully be rare, but just in case...
5043 log::error!("multiple different run targets found on a single line, only the last target will be rendered")
5044 }
5045 }
5046
5047 fn render_run_indicator(
5048 &self,
5049 _style: &EditorStyle,
5050 is_active: bool,
5051 row: DisplayRow,
5052 cx: &mut ViewContext<Self>,
5053 ) -> IconButton {
5054 IconButton::new(("run_indicator", row.0 as usize), ui::IconName::Play)
5055 .shape(ui::IconButtonShape::Square)
5056 .icon_size(IconSize::XSmall)
5057 .icon_color(Color::Muted)
5058 .selected(is_active)
5059 .on_click(cx.listener(move |editor, _e, cx| {
5060 editor.focus(cx);
5061 editor.toggle_code_actions(
5062 &ToggleCodeActions {
5063 deployed_from_indicator: Some(row),
5064 },
5065 cx,
5066 );
5067 }))
5068 }
5069
5070 pub fn context_menu_visible(&self) -> bool {
5071 self.context_menu
5072 .read()
5073 .as_ref()
5074 .map_or(false, |menu| menu.visible())
5075 }
5076
5077 fn render_context_menu(
5078 &self,
5079 cursor_position: DisplayPoint,
5080 style: &EditorStyle,
5081 max_height: Pixels,
5082 cx: &mut ViewContext<Editor>,
5083 ) -> Option<(ContextMenuOrigin, AnyElement)> {
5084 self.context_menu.read().as_ref().map(|menu| {
5085 menu.render(
5086 cursor_position,
5087 style,
5088 max_height,
5089 self.workspace.as_ref().map(|(w, _)| w.clone()),
5090 cx,
5091 )
5092 })
5093 }
5094
5095 fn hide_context_menu(&mut self, cx: &mut ViewContext<Self>) -> Option<ContextMenu> {
5096 cx.notify();
5097 self.completion_tasks.clear();
5098 let context_menu = self.context_menu.write().take();
5099 if context_menu.is_some() {
5100 self.update_visible_inline_completion(cx);
5101 }
5102 context_menu
5103 }
5104
5105 pub fn insert_snippet(
5106 &mut self,
5107 insertion_ranges: &[Range<usize>],
5108 snippet: Snippet,
5109 cx: &mut ViewContext<Self>,
5110 ) -> Result<()> {
5111 struct Tabstop<T> {
5112 is_end_tabstop: bool,
5113 ranges: Vec<Range<T>>,
5114 }
5115
5116 let tabstops = self.buffer.update(cx, |buffer, cx| {
5117 let snippet_text: Arc<str> = snippet.text.clone().into();
5118 buffer.edit(
5119 insertion_ranges
5120 .iter()
5121 .cloned()
5122 .map(|range| (range, snippet_text.clone())),
5123 Some(AutoindentMode::EachLine),
5124 cx,
5125 );
5126
5127 let snapshot = &*buffer.read(cx);
5128 let snippet = &snippet;
5129 snippet
5130 .tabstops
5131 .iter()
5132 .map(|tabstop| {
5133 let is_end_tabstop = tabstop.first().map_or(false, |tabstop| {
5134 tabstop.is_empty() && tabstop.start == snippet.text.len() as isize
5135 });
5136 let mut tabstop_ranges = tabstop
5137 .iter()
5138 .flat_map(|tabstop_range| {
5139 let mut delta = 0_isize;
5140 insertion_ranges.iter().map(move |insertion_range| {
5141 let insertion_start = insertion_range.start as isize + delta;
5142 delta +=
5143 snippet.text.len() as isize - insertion_range.len() as isize;
5144
5145 let start = ((insertion_start + tabstop_range.start) as usize)
5146 .min(snapshot.len());
5147 let end = ((insertion_start + tabstop_range.end) as usize)
5148 .min(snapshot.len());
5149 snapshot.anchor_before(start)..snapshot.anchor_after(end)
5150 })
5151 })
5152 .collect::<Vec<_>>();
5153 tabstop_ranges.sort_unstable_by(|a, b| a.start.cmp(&b.start, snapshot));
5154
5155 Tabstop {
5156 is_end_tabstop,
5157 ranges: tabstop_ranges,
5158 }
5159 })
5160 .collect::<Vec<_>>()
5161 });
5162 if let Some(tabstop) = tabstops.first() {
5163 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5164 s.select_ranges(tabstop.ranges.iter().cloned());
5165 });
5166
5167 // If we're already at the last tabstop and it's at the end of the snippet,
5168 // we're done, we don't need to keep the state around.
5169 if !tabstop.is_end_tabstop {
5170 let ranges = tabstops
5171 .into_iter()
5172 .map(|tabstop| tabstop.ranges)
5173 .collect::<Vec<_>>();
5174 self.snippet_stack.push(SnippetState {
5175 active_index: 0,
5176 ranges,
5177 });
5178 }
5179
5180 // Check whether the just-entered snippet ends with an auto-closable bracket.
5181 if self.autoclose_regions.is_empty() {
5182 let snapshot = self.buffer.read(cx).snapshot(cx);
5183 for selection in &mut self.selections.all::<Point>(cx) {
5184 let selection_head = selection.head();
5185 let Some(scope) = snapshot.language_scope_at(selection_head) else {
5186 continue;
5187 };
5188
5189 let mut bracket_pair = None;
5190 let next_chars = snapshot.chars_at(selection_head).collect::<String>();
5191 let prev_chars = snapshot
5192 .reversed_chars_at(selection_head)
5193 .collect::<String>();
5194 for (pair, enabled) in scope.brackets() {
5195 if enabled
5196 && pair.close
5197 && prev_chars.starts_with(pair.start.as_str())
5198 && next_chars.starts_with(pair.end.as_str())
5199 {
5200 bracket_pair = Some(pair.clone());
5201 break;
5202 }
5203 }
5204 if let Some(pair) = bracket_pair {
5205 let start = snapshot.anchor_after(selection_head);
5206 let end = snapshot.anchor_after(selection_head);
5207 self.autoclose_regions.push(AutocloseRegion {
5208 selection_id: selection.id,
5209 range: start..end,
5210 pair,
5211 });
5212 }
5213 }
5214 }
5215 }
5216 Ok(())
5217 }
5218
5219 pub fn move_to_next_snippet_tabstop(&mut self, cx: &mut ViewContext<Self>) -> bool {
5220 self.move_to_snippet_tabstop(Bias::Right, cx)
5221 }
5222
5223 pub fn move_to_prev_snippet_tabstop(&mut self, cx: &mut ViewContext<Self>) -> bool {
5224 self.move_to_snippet_tabstop(Bias::Left, cx)
5225 }
5226
5227 pub fn move_to_snippet_tabstop(&mut self, bias: Bias, cx: &mut ViewContext<Self>) -> bool {
5228 if let Some(mut snippet) = self.snippet_stack.pop() {
5229 match bias {
5230 Bias::Left => {
5231 if snippet.active_index > 0 {
5232 snippet.active_index -= 1;
5233 } else {
5234 self.snippet_stack.push(snippet);
5235 return false;
5236 }
5237 }
5238 Bias::Right => {
5239 if snippet.active_index + 1 < snippet.ranges.len() {
5240 snippet.active_index += 1;
5241 } else {
5242 self.snippet_stack.push(snippet);
5243 return false;
5244 }
5245 }
5246 }
5247 if let Some(current_ranges) = snippet.ranges.get(snippet.active_index) {
5248 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5249 s.select_anchor_ranges(current_ranges.iter().cloned())
5250 });
5251 // If snippet state is not at the last tabstop, push it back on the stack
5252 if snippet.active_index + 1 < snippet.ranges.len() {
5253 self.snippet_stack.push(snippet);
5254 }
5255 return true;
5256 }
5257 }
5258
5259 false
5260 }
5261
5262 pub fn clear(&mut self, cx: &mut ViewContext<Self>) {
5263 self.transact(cx, |this, cx| {
5264 this.select_all(&SelectAll, cx);
5265 this.insert("", cx);
5266 });
5267 }
5268
5269 pub fn backspace(&mut self, _: &Backspace, cx: &mut ViewContext<Self>) {
5270 self.transact(cx, |this, cx| {
5271 this.select_autoclose_pair(cx);
5272 let mut linked_ranges = HashMap::<_, Vec<_>>::default();
5273 if !this.linked_edit_ranges.is_empty() {
5274 let selections = this.selections.all::<MultiBufferPoint>(cx);
5275 let snapshot = this.buffer.read(cx).snapshot(cx);
5276
5277 for selection in selections.iter() {
5278 let selection_start = snapshot.anchor_before(selection.start).text_anchor;
5279 let selection_end = snapshot.anchor_after(selection.end).text_anchor;
5280 if selection_start.buffer_id != selection_end.buffer_id {
5281 continue;
5282 }
5283 if let Some(ranges) =
5284 this.linked_editing_ranges_for(selection_start..selection_end, cx)
5285 {
5286 for (buffer, entries) in ranges {
5287 linked_ranges.entry(buffer).or_default().extend(entries);
5288 }
5289 }
5290 }
5291 }
5292
5293 let mut selections = this.selections.all::<MultiBufferPoint>(cx);
5294 if !this.selections.line_mode {
5295 let display_map = this.display_map.update(cx, |map, cx| map.snapshot(cx));
5296 for selection in &mut selections {
5297 if selection.is_empty() {
5298 let old_head = selection.head();
5299 let mut new_head =
5300 movement::left(&display_map, old_head.to_display_point(&display_map))
5301 .to_point(&display_map);
5302 if let Some((buffer, line_buffer_range)) = display_map
5303 .buffer_snapshot
5304 .buffer_line_for_row(MultiBufferRow(old_head.row))
5305 {
5306 let indent_size =
5307 buffer.indent_size_for_line(line_buffer_range.start.row);
5308 let indent_len = match indent_size.kind {
5309 IndentKind::Space => {
5310 buffer.settings_at(line_buffer_range.start, cx).tab_size
5311 }
5312 IndentKind::Tab => NonZeroU32::new(1).unwrap(),
5313 };
5314 if old_head.column <= indent_size.len && old_head.column > 0 {
5315 let indent_len = indent_len.get();
5316 new_head = cmp::min(
5317 new_head,
5318 MultiBufferPoint::new(
5319 old_head.row,
5320 ((old_head.column - 1) / indent_len) * indent_len,
5321 ),
5322 );
5323 }
5324 }
5325
5326 selection.set_head(new_head, SelectionGoal::None);
5327 }
5328 }
5329 }
5330
5331 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
5332 this.insert("", cx);
5333 let empty_str: Arc<str> = Arc::from("");
5334 for (buffer, edits) in linked_ranges {
5335 let snapshot = buffer.read(cx).snapshot();
5336 use text::ToPoint as TP;
5337
5338 let edits = edits
5339 .into_iter()
5340 .map(|range| {
5341 let end_point = TP::to_point(&range.end, &snapshot);
5342 let mut start_point = TP::to_point(&range.start, &snapshot);
5343
5344 if end_point == start_point {
5345 let offset = text::ToOffset::to_offset(&range.start, &snapshot)
5346 .saturating_sub(1);
5347 start_point = TP::to_point(&offset, &snapshot);
5348 };
5349
5350 (start_point..end_point, empty_str.clone())
5351 })
5352 .sorted_by_key(|(range, _)| range.start)
5353 .collect::<Vec<_>>();
5354 buffer.update(cx, |this, cx| {
5355 this.edit(edits, None, cx);
5356 })
5357 }
5358 this.refresh_inline_completion(true, cx);
5359 linked_editing_ranges::refresh_linked_ranges(this, cx);
5360 });
5361 }
5362
5363 pub fn delete(&mut self, _: &Delete, cx: &mut ViewContext<Self>) {
5364 self.transact(cx, |this, cx| {
5365 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
5366 let line_mode = s.line_mode;
5367 s.move_with(|map, selection| {
5368 if selection.is_empty() && !line_mode {
5369 let cursor = movement::right(map, selection.head());
5370 selection.end = cursor;
5371 selection.reversed = true;
5372 selection.goal = SelectionGoal::None;
5373 }
5374 })
5375 });
5376 this.insert("", cx);
5377 this.refresh_inline_completion(true, cx);
5378 });
5379 }
5380
5381 pub fn tab_prev(&mut self, _: &TabPrev, cx: &mut ViewContext<Self>) {
5382 if self.move_to_prev_snippet_tabstop(cx) {
5383 return;
5384 }
5385
5386 self.outdent(&Outdent, cx);
5387 }
5388
5389 pub fn tab(&mut self, _: &Tab, cx: &mut ViewContext<Self>) {
5390 if self.move_to_next_snippet_tabstop(cx) || self.read_only(cx) {
5391 return;
5392 }
5393
5394 let mut selections = self.selections.all_adjusted(cx);
5395 let buffer = self.buffer.read(cx);
5396 let snapshot = buffer.snapshot(cx);
5397 let rows_iter = selections.iter().map(|s| s.head().row);
5398 let suggested_indents = snapshot.suggested_indents(rows_iter, cx);
5399
5400 let mut edits = Vec::new();
5401 let mut prev_edited_row = 0;
5402 let mut row_delta = 0;
5403 for selection in &mut selections {
5404 if selection.start.row != prev_edited_row {
5405 row_delta = 0;
5406 }
5407 prev_edited_row = selection.end.row;
5408
5409 // If the selection is non-empty, then increase the indentation of the selected lines.
5410 if !selection.is_empty() {
5411 row_delta =
5412 Self::indent_selection(buffer, &snapshot, selection, &mut edits, row_delta, cx);
5413 continue;
5414 }
5415
5416 // If the selection is empty and the cursor is in the leading whitespace before the
5417 // suggested indentation, then auto-indent the line.
5418 let cursor = selection.head();
5419 let current_indent = snapshot.indent_size_for_line(MultiBufferRow(cursor.row));
5420 if let Some(suggested_indent) =
5421 suggested_indents.get(&MultiBufferRow(cursor.row)).copied()
5422 {
5423 if cursor.column < suggested_indent.len
5424 && cursor.column <= current_indent.len
5425 && current_indent.len <= suggested_indent.len
5426 {
5427 selection.start = Point::new(cursor.row, suggested_indent.len);
5428 selection.end = selection.start;
5429 if row_delta == 0 {
5430 edits.extend(Buffer::edit_for_indent_size_adjustment(
5431 cursor.row,
5432 current_indent,
5433 suggested_indent,
5434 ));
5435 row_delta = suggested_indent.len - current_indent.len;
5436 }
5437 continue;
5438 }
5439 }
5440
5441 // Otherwise, insert a hard or soft tab.
5442 let settings = buffer.settings_at(cursor, cx);
5443 let tab_size = if settings.hard_tabs {
5444 IndentSize::tab()
5445 } else {
5446 let tab_size = settings.tab_size.get();
5447 let char_column = snapshot
5448 .text_for_range(Point::new(cursor.row, 0)..cursor)
5449 .flat_map(str::chars)
5450 .count()
5451 + row_delta as usize;
5452 let chars_to_next_tab_stop = tab_size - (char_column as u32 % tab_size);
5453 IndentSize::spaces(chars_to_next_tab_stop)
5454 };
5455 selection.start = Point::new(cursor.row, cursor.column + row_delta + tab_size.len);
5456 selection.end = selection.start;
5457 edits.push((cursor..cursor, tab_size.chars().collect::<String>()));
5458 row_delta += tab_size.len;
5459 }
5460
5461 self.transact(cx, |this, cx| {
5462 this.buffer.update(cx, |b, cx| b.edit(edits, None, cx));
5463 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
5464 this.refresh_inline_completion(true, cx);
5465 });
5466 }
5467
5468 pub fn indent(&mut self, _: &Indent, cx: &mut ViewContext<Self>) {
5469 if self.read_only(cx) {
5470 return;
5471 }
5472 let mut selections = self.selections.all::<Point>(cx);
5473 let mut prev_edited_row = 0;
5474 let mut row_delta = 0;
5475 let mut edits = Vec::new();
5476 let buffer = self.buffer.read(cx);
5477 let snapshot = buffer.snapshot(cx);
5478 for selection in &mut selections {
5479 if selection.start.row != prev_edited_row {
5480 row_delta = 0;
5481 }
5482 prev_edited_row = selection.end.row;
5483
5484 row_delta =
5485 Self::indent_selection(buffer, &snapshot, selection, &mut edits, row_delta, cx);
5486 }
5487
5488 self.transact(cx, |this, cx| {
5489 this.buffer.update(cx, |b, cx| b.edit(edits, None, cx));
5490 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
5491 });
5492 }
5493
5494 fn indent_selection(
5495 buffer: &MultiBuffer,
5496 snapshot: &MultiBufferSnapshot,
5497 selection: &mut Selection<Point>,
5498 edits: &mut Vec<(Range<Point>, String)>,
5499 delta_for_start_row: u32,
5500 cx: &AppContext,
5501 ) -> u32 {
5502 let settings = buffer.settings_at(selection.start, cx);
5503 let tab_size = settings.tab_size.get();
5504 let indent_kind = if settings.hard_tabs {
5505 IndentKind::Tab
5506 } else {
5507 IndentKind::Space
5508 };
5509 let mut start_row = selection.start.row;
5510 let mut end_row = selection.end.row + 1;
5511
5512 // If a selection ends at the beginning of a line, don't indent
5513 // that last line.
5514 if selection.end.column == 0 && selection.end.row > selection.start.row {
5515 end_row -= 1;
5516 }
5517
5518 // Avoid re-indenting a row that has already been indented by a
5519 // previous selection, but still update this selection's column
5520 // to reflect that indentation.
5521 if delta_for_start_row > 0 {
5522 start_row += 1;
5523 selection.start.column += delta_for_start_row;
5524 if selection.end.row == selection.start.row {
5525 selection.end.column += delta_for_start_row;
5526 }
5527 }
5528
5529 let mut delta_for_end_row = 0;
5530 let has_multiple_rows = start_row + 1 != end_row;
5531 for row in start_row..end_row {
5532 let current_indent = snapshot.indent_size_for_line(MultiBufferRow(row));
5533 let indent_delta = match (current_indent.kind, indent_kind) {
5534 (IndentKind::Space, IndentKind::Space) => {
5535 let columns_to_next_tab_stop = tab_size - (current_indent.len % tab_size);
5536 IndentSize::spaces(columns_to_next_tab_stop)
5537 }
5538 (IndentKind::Tab, IndentKind::Space) => IndentSize::spaces(tab_size),
5539 (_, IndentKind::Tab) => IndentSize::tab(),
5540 };
5541
5542 let start = if has_multiple_rows || current_indent.len < selection.start.column {
5543 0
5544 } else {
5545 selection.start.column
5546 };
5547 let row_start = Point::new(row, start);
5548 edits.push((
5549 row_start..row_start,
5550 indent_delta.chars().collect::<String>(),
5551 ));
5552
5553 // Update this selection's endpoints to reflect the indentation.
5554 if row == selection.start.row {
5555 selection.start.column += indent_delta.len;
5556 }
5557 if row == selection.end.row {
5558 selection.end.column += indent_delta.len;
5559 delta_for_end_row = indent_delta.len;
5560 }
5561 }
5562
5563 if selection.start.row == selection.end.row {
5564 delta_for_start_row + delta_for_end_row
5565 } else {
5566 delta_for_end_row
5567 }
5568 }
5569
5570 pub fn outdent(&mut self, _: &Outdent, cx: &mut ViewContext<Self>) {
5571 if self.read_only(cx) {
5572 return;
5573 }
5574 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
5575 let selections = self.selections.all::<Point>(cx);
5576 let mut deletion_ranges = Vec::new();
5577 let mut last_outdent = None;
5578 {
5579 let buffer = self.buffer.read(cx);
5580 let snapshot = buffer.snapshot(cx);
5581 for selection in &selections {
5582 let settings = buffer.settings_at(selection.start, cx);
5583 let tab_size = settings.tab_size.get();
5584 let mut rows = selection.spanned_rows(false, &display_map);
5585
5586 // Avoid re-outdenting a row that has already been outdented by a
5587 // previous selection.
5588 if let Some(last_row) = last_outdent {
5589 if last_row == rows.start {
5590 rows.start = rows.start.next_row();
5591 }
5592 }
5593 let has_multiple_rows = rows.len() > 1;
5594 for row in rows.iter_rows() {
5595 let indent_size = snapshot.indent_size_for_line(row);
5596 if indent_size.len > 0 {
5597 let deletion_len = match indent_size.kind {
5598 IndentKind::Space => {
5599 let columns_to_prev_tab_stop = indent_size.len % tab_size;
5600 if columns_to_prev_tab_stop == 0 {
5601 tab_size
5602 } else {
5603 columns_to_prev_tab_stop
5604 }
5605 }
5606 IndentKind::Tab => 1,
5607 };
5608 let start = if has_multiple_rows
5609 || deletion_len > selection.start.column
5610 || indent_size.len < selection.start.column
5611 {
5612 0
5613 } else {
5614 selection.start.column - deletion_len
5615 };
5616 deletion_ranges.push(
5617 Point::new(row.0, start)..Point::new(row.0, start + deletion_len),
5618 );
5619 last_outdent = Some(row);
5620 }
5621 }
5622 }
5623 }
5624
5625 self.transact(cx, |this, cx| {
5626 this.buffer.update(cx, |buffer, cx| {
5627 let empty_str: Arc<str> = "".into();
5628 buffer.edit(
5629 deletion_ranges
5630 .into_iter()
5631 .map(|range| (range, empty_str.clone())),
5632 None,
5633 cx,
5634 );
5635 });
5636 let selections = this.selections.all::<usize>(cx);
5637 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
5638 });
5639 }
5640
5641 pub fn delete_line(&mut self, _: &DeleteLine, cx: &mut ViewContext<Self>) {
5642 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
5643 let selections = self.selections.all::<Point>(cx);
5644
5645 let mut new_cursors = Vec::new();
5646 let mut edit_ranges = Vec::new();
5647 let mut selections = selections.iter().peekable();
5648 while let Some(selection) = selections.next() {
5649 let mut rows = selection.spanned_rows(false, &display_map);
5650 let goal_display_column = selection.head().to_display_point(&display_map).column();
5651
5652 // Accumulate contiguous regions of rows that we want to delete.
5653 while let Some(next_selection) = selections.peek() {
5654 let next_rows = next_selection.spanned_rows(false, &display_map);
5655 if next_rows.start <= rows.end {
5656 rows.end = next_rows.end;
5657 selections.next().unwrap();
5658 } else {
5659 break;
5660 }
5661 }
5662
5663 let buffer = &display_map.buffer_snapshot;
5664 let mut edit_start = Point::new(rows.start.0, 0).to_offset(buffer);
5665 let edit_end;
5666 let cursor_buffer_row;
5667 if buffer.max_point().row >= rows.end.0 {
5668 // If there's a line after the range, delete the \n from the end of the row range
5669 // and position the cursor on the next line.
5670 edit_end = Point::new(rows.end.0, 0).to_offset(buffer);
5671 cursor_buffer_row = rows.end;
5672 } else {
5673 // If there isn't a line after the range, delete the \n from the line before the
5674 // start of the row range and position the cursor there.
5675 edit_start = edit_start.saturating_sub(1);
5676 edit_end = buffer.len();
5677 cursor_buffer_row = rows.start.previous_row();
5678 }
5679
5680 let mut cursor = Point::new(cursor_buffer_row.0, 0).to_display_point(&display_map);
5681 *cursor.column_mut() =
5682 cmp::min(goal_display_column, display_map.line_len(cursor.row()));
5683
5684 new_cursors.push((
5685 selection.id,
5686 buffer.anchor_after(cursor.to_point(&display_map)),
5687 ));
5688 edit_ranges.push(edit_start..edit_end);
5689 }
5690
5691 self.transact(cx, |this, cx| {
5692 let buffer = this.buffer.update(cx, |buffer, cx| {
5693 let empty_str: Arc<str> = "".into();
5694 buffer.edit(
5695 edit_ranges
5696 .into_iter()
5697 .map(|range| (range, empty_str.clone())),
5698 None,
5699 cx,
5700 );
5701 buffer.snapshot(cx)
5702 });
5703 let new_selections = new_cursors
5704 .into_iter()
5705 .map(|(id, cursor)| {
5706 let cursor = cursor.to_point(&buffer);
5707 Selection {
5708 id,
5709 start: cursor,
5710 end: cursor,
5711 reversed: false,
5712 goal: SelectionGoal::None,
5713 }
5714 })
5715 .collect();
5716
5717 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
5718 s.select(new_selections);
5719 });
5720 });
5721 }
5722
5723 pub fn join_lines(&mut self, _: &JoinLines, cx: &mut ViewContext<Self>) {
5724 if self.read_only(cx) {
5725 return;
5726 }
5727 let mut row_ranges = Vec::<Range<MultiBufferRow>>::new();
5728 for selection in self.selections.all::<Point>(cx) {
5729 let start = MultiBufferRow(selection.start.row);
5730 let end = if selection.start.row == selection.end.row {
5731 MultiBufferRow(selection.start.row + 1)
5732 } else {
5733 MultiBufferRow(selection.end.row)
5734 };
5735
5736 if let Some(last_row_range) = row_ranges.last_mut() {
5737 if start <= last_row_range.end {
5738 last_row_range.end = end;
5739 continue;
5740 }
5741 }
5742 row_ranges.push(start..end);
5743 }
5744
5745 let snapshot = self.buffer.read(cx).snapshot(cx);
5746 let mut cursor_positions = Vec::new();
5747 for row_range in &row_ranges {
5748 let anchor = snapshot.anchor_before(Point::new(
5749 row_range.end.previous_row().0,
5750 snapshot.line_len(row_range.end.previous_row()),
5751 ));
5752 cursor_positions.push(anchor..anchor);
5753 }
5754
5755 self.transact(cx, |this, cx| {
5756 for row_range in row_ranges.into_iter().rev() {
5757 for row in row_range.iter_rows().rev() {
5758 let end_of_line = Point::new(row.0, snapshot.line_len(row));
5759 let next_line_row = row.next_row();
5760 let indent = snapshot.indent_size_for_line(next_line_row);
5761 let start_of_next_line = Point::new(next_line_row.0, indent.len);
5762
5763 let replace = if snapshot.line_len(next_line_row) > indent.len {
5764 " "
5765 } else {
5766 ""
5767 };
5768
5769 this.buffer.update(cx, |buffer, cx| {
5770 buffer.edit([(end_of_line..start_of_next_line, replace)], None, cx)
5771 });
5772 }
5773 }
5774
5775 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
5776 s.select_anchor_ranges(cursor_positions)
5777 });
5778 });
5779 }
5780
5781 pub fn sort_lines_case_sensitive(
5782 &mut self,
5783 _: &SortLinesCaseSensitive,
5784 cx: &mut ViewContext<Self>,
5785 ) {
5786 self.manipulate_lines(cx, |lines| lines.sort())
5787 }
5788
5789 pub fn sort_lines_case_insensitive(
5790 &mut self,
5791 _: &SortLinesCaseInsensitive,
5792 cx: &mut ViewContext<Self>,
5793 ) {
5794 self.manipulate_lines(cx, |lines| lines.sort_by_key(|line| line.to_lowercase()))
5795 }
5796
5797 pub fn unique_lines_case_insensitive(
5798 &mut self,
5799 _: &UniqueLinesCaseInsensitive,
5800 cx: &mut ViewContext<Self>,
5801 ) {
5802 self.manipulate_lines(cx, |lines| {
5803 let mut seen = HashSet::default();
5804 lines.retain(|line| seen.insert(line.to_lowercase()));
5805 })
5806 }
5807
5808 pub fn unique_lines_case_sensitive(
5809 &mut self,
5810 _: &UniqueLinesCaseSensitive,
5811 cx: &mut ViewContext<Self>,
5812 ) {
5813 self.manipulate_lines(cx, |lines| {
5814 let mut seen = HashSet::default();
5815 lines.retain(|line| seen.insert(*line));
5816 })
5817 }
5818
5819 pub fn revert_selected_hunks(&mut self, _: &RevertSelectedHunks, cx: &mut ViewContext<Self>) {
5820 let revert_changes = self.gather_revert_changes(&self.selections.disjoint_anchors(), cx);
5821 if !revert_changes.is_empty() {
5822 self.transact(cx, |editor, cx| {
5823 editor.buffer().update(cx, |multi_buffer, cx| {
5824 for (buffer_id, changes) in revert_changes {
5825 if let Some(buffer) = multi_buffer.buffer(buffer_id) {
5826 buffer.update(cx, |buffer, cx| {
5827 buffer.edit(
5828 changes.into_iter().map(|(range, text)| {
5829 (range, text.to_string().map(Arc::<str>::from))
5830 }),
5831 None,
5832 cx,
5833 );
5834 });
5835 }
5836 }
5837 });
5838 editor.change_selections(None, cx, |selections| selections.refresh());
5839 });
5840 }
5841 }
5842
5843 pub fn open_active_item_in_terminal(&mut self, _: &OpenInTerminal, cx: &mut ViewContext<Self>) {
5844 if let Some(working_directory) = self.active_excerpt(cx).and_then(|(_, buffer, _)| {
5845 let project_path = buffer.read(cx).project_path(cx)?;
5846 let project = self.project.as_ref()?.read(cx);
5847 let entry = project.entry_for_path(&project_path, cx)?;
5848 let abs_path = project.absolute_path(&project_path, cx)?;
5849 let parent = if entry.is_symlink {
5850 abs_path.canonicalize().ok()?
5851 } else {
5852 abs_path
5853 }
5854 .parent()?
5855 .to_path_buf();
5856 Some(parent)
5857 }) {
5858 cx.dispatch_action(OpenTerminal { working_directory }.boxed_clone());
5859 }
5860 }
5861
5862 fn gather_revert_changes(
5863 &mut self,
5864 selections: &[Selection<Anchor>],
5865 cx: &mut ViewContext<'_, Editor>,
5866 ) -> HashMap<BufferId, Vec<(Range<text::Anchor>, Rope)>> {
5867 let mut revert_changes = HashMap::default();
5868 self.buffer.update(cx, |multi_buffer, cx| {
5869 let multi_buffer_snapshot = multi_buffer.snapshot(cx);
5870 for hunk in hunks_for_selections(&multi_buffer_snapshot, selections) {
5871 Self::prepare_revert_change(&mut revert_changes, &multi_buffer, &hunk, cx);
5872 }
5873 });
5874 revert_changes
5875 }
5876
5877 fn prepare_revert_change(
5878 revert_changes: &mut HashMap<BufferId, Vec<(Range<text::Anchor>, Rope)>>,
5879 multi_buffer: &MultiBuffer,
5880 hunk: &DiffHunk<MultiBufferRow>,
5881 cx: &mut AppContext,
5882 ) -> Option<()> {
5883 let buffer = multi_buffer.buffer(hunk.buffer_id)?;
5884 let buffer = buffer.read(cx);
5885 let original_text = buffer.diff_base()?.slice(hunk.diff_base_byte_range.clone());
5886 let buffer_snapshot = buffer.snapshot();
5887 let buffer_revert_changes = revert_changes.entry(buffer.remote_id()).or_default();
5888 if let Err(i) = buffer_revert_changes.binary_search_by(|probe| {
5889 probe
5890 .0
5891 .start
5892 .cmp(&hunk.buffer_range.start, &buffer_snapshot)
5893 .then(probe.0.end.cmp(&hunk.buffer_range.end, &buffer_snapshot))
5894 }) {
5895 buffer_revert_changes.insert(i, (hunk.buffer_range.clone(), original_text));
5896 Some(())
5897 } else {
5898 None
5899 }
5900 }
5901
5902 pub fn reverse_lines(&mut self, _: &ReverseLines, cx: &mut ViewContext<Self>) {
5903 self.manipulate_lines(cx, |lines| lines.reverse())
5904 }
5905
5906 pub fn shuffle_lines(&mut self, _: &ShuffleLines, cx: &mut ViewContext<Self>) {
5907 self.manipulate_lines(cx, |lines| lines.shuffle(&mut thread_rng()))
5908 }
5909
5910 fn manipulate_lines<Fn>(&mut self, cx: &mut ViewContext<Self>, mut callback: Fn)
5911 where
5912 Fn: FnMut(&mut Vec<&str>),
5913 {
5914 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
5915 let buffer = self.buffer.read(cx).snapshot(cx);
5916
5917 let mut edits = Vec::new();
5918
5919 let selections = self.selections.all::<Point>(cx);
5920 let mut selections = selections.iter().peekable();
5921 let mut contiguous_row_selections = Vec::new();
5922 let mut new_selections = Vec::new();
5923 let mut added_lines = 0;
5924 let mut removed_lines = 0;
5925
5926 while let Some(selection) = selections.next() {
5927 let (start_row, end_row) = consume_contiguous_rows(
5928 &mut contiguous_row_selections,
5929 selection,
5930 &display_map,
5931 &mut selections,
5932 );
5933
5934 let start_point = Point::new(start_row.0, 0);
5935 let end_point = Point::new(
5936 end_row.previous_row().0,
5937 buffer.line_len(end_row.previous_row()),
5938 );
5939 let text = buffer
5940 .text_for_range(start_point..end_point)
5941 .collect::<String>();
5942
5943 let mut lines = text.split('\n').collect_vec();
5944
5945 let lines_before = lines.len();
5946 callback(&mut lines);
5947 let lines_after = lines.len();
5948
5949 edits.push((start_point..end_point, lines.join("\n")));
5950
5951 // Selections must change based on added and removed line count
5952 let start_row =
5953 MultiBufferRow(start_point.row + added_lines as u32 - removed_lines as u32);
5954 let end_row = MultiBufferRow(start_row.0 + lines_after.saturating_sub(1) as u32);
5955 new_selections.push(Selection {
5956 id: selection.id,
5957 start: start_row,
5958 end: end_row,
5959 goal: SelectionGoal::None,
5960 reversed: selection.reversed,
5961 });
5962
5963 if lines_after > lines_before {
5964 added_lines += lines_after - lines_before;
5965 } else if lines_before > lines_after {
5966 removed_lines += lines_before - lines_after;
5967 }
5968 }
5969
5970 self.transact(cx, |this, cx| {
5971 let buffer = this.buffer.update(cx, |buffer, cx| {
5972 buffer.edit(edits, None, cx);
5973 buffer.snapshot(cx)
5974 });
5975
5976 // Recalculate offsets on newly edited buffer
5977 let new_selections = new_selections
5978 .iter()
5979 .map(|s| {
5980 let start_point = Point::new(s.start.0, 0);
5981 let end_point = Point::new(s.end.0, buffer.line_len(s.end));
5982 Selection {
5983 id: s.id,
5984 start: buffer.point_to_offset(start_point),
5985 end: buffer.point_to_offset(end_point),
5986 goal: s.goal,
5987 reversed: s.reversed,
5988 }
5989 })
5990 .collect();
5991
5992 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
5993 s.select(new_selections);
5994 });
5995
5996 this.request_autoscroll(Autoscroll::fit(), cx);
5997 });
5998 }
5999
6000 pub fn convert_to_upper_case(&mut self, _: &ConvertToUpperCase, cx: &mut ViewContext<Self>) {
6001 self.manipulate_text(cx, |text| text.to_uppercase())
6002 }
6003
6004 pub fn convert_to_lower_case(&mut self, _: &ConvertToLowerCase, cx: &mut ViewContext<Self>) {
6005 self.manipulate_text(cx, |text| text.to_lowercase())
6006 }
6007
6008 pub fn convert_to_title_case(&mut self, _: &ConvertToTitleCase, cx: &mut ViewContext<Self>) {
6009 self.manipulate_text(cx, |text| {
6010 // Hack to get around the fact that to_case crate doesn't support '\n' as a word boundary
6011 // https://github.com/rutrum/convert-case/issues/16
6012 text.split('\n')
6013 .map(|line| line.to_case(Case::Title))
6014 .join("\n")
6015 })
6016 }
6017
6018 pub fn convert_to_snake_case(&mut self, _: &ConvertToSnakeCase, cx: &mut ViewContext<Self>) {
6019 self.manipulate_text(cx, |text| text.to_case(Case::Snake))
6020 }
6021
6022 pub fn convert_to_kebab_case(&mut self, _: &ConvertToKebabCase, cx: &mut ViewContext<Self>) {
6023 self.manipulate_text(cx, |text| text.to_case(Case::Kebab))
6024 }
6025
6026 pub fn convert_to_upper_camel_case(
6027 &mut self,
6028 _: &ConvertToUpperCamelCase,
6029 cx: &mut ViewContext<Self>,
6030 ) {
6031 self.manipulate_text(cx, |text| {
6032 // Hack to get around the fact that to_case crate doesn't support '\n' as a word boundary
6033 // https://github.com/rutrum/convert-case/issues/16
6034 text.split('\n')
6035 .map(|line| line.to_case(Case::UpperCamel))
6036 .join("\n")
6037 })
6038 }
6039
6040 pub fn convert_to_lower_camel_case(
6041 &mut self,
6042 _: &ConvertToLowerCamelCase,
6043 cx: &mut ViewContext<Self>,
6044 ) {
6045 self.manipulate_text(cx, |text| text.to_case(Case::Camel))
6046 }
6047
6048 pub fn convert_to_opposite_case(
6049 &mut self,
6050 _: &ConvertToOppositeCase,
6051 cx: &mut ViewContext<Self>,
6052 ) {
6053 self.manipulate_text(cx, |text| {
6054 text.chars()
6055 .fold(String::with_capacity(text.len()), |mut t, c| {
6056 if c.is_uppercase() {
6057 t.extend(c.to_lowercase());
6058 } else {
6059 t.extend(c.to_uppercase());
6060 }
6061 t
6062 })
6063 })
6064 }
6065
6066 fn manipulate_text<Fn>(&mut self, cx: &mut ViewContext<Self>, mut callback: Fn)
6067 where
6068 Fn: FnMut(&str) -> String,
6069 {
6070 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
6071 let buffer = self.buffer.read(cx).snapshot(cx);
6072
6073 let mut new_selections = Vec::new();
6074 let mut edits = Vec::new();
6075 let mut selection_adjustment = 0i32;
6076
6077 for selection in self.selections.all::<usize>(cx) {
6078 let selection_is_empty = selection.is_empty();
6079
6080 let (start, end) = if selection_is_empty {
6081 let word_range = movement::surrounding_word(
6082 &display_map,
6083 selection.start.to_display_point(&display_map),
6084 );
6085 let start = word_range.start.to_offset(&display_map, Bias::Left);
6086 let end = word_range.end.to_offset(&display_map, Bias::Left);
6087 (start, end)
6088 } else {
6089 (selection.start, selection.end)
6090 };
6091
6092 let text = buffer.text_for_range(start..end).collect::<String>();
6093 let old_length = text.len() as i32;
6094 let text = callback(&text);
6095
6096 new_selections.push(Selection {
6097 start: (start as i32 - selection_adjustment) as usize,
6098 end: ((start + text.len()) as i32 - selection_adjustment) as usize,
6099 goal: SelectionGoal::None,
6100 ..selection
6101 });
6102
6103 selection_adjustment += old_length - text.len() as i32;
6104
6105 edits.push((start..end, text));
6106 }
6107
6108 self.transact(cx, |this, cx| {
6109 this.buffer.update(cx, |buffer, cx| {
6110 buffer.edit(edits, None, cx);
6111 });
6112
6113 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6114 s.select(new_selections);
6115 });
6116
6117 this.request_autoscroll(Autoscroll::fit(), cx);
6118 });
6119 }
6120
6121 pub fn duplicate_line(&mut self, upwards: bool, cx: &mut ViewContext<Self>) {
6122 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
6123 let buffer = &display_map.buffer_snapshot;
6124 let selections = self.selections.all::<Point>(cx);
6125
6126 let mut edits = Vec::new();
6127 let mut selections_iter = selections.iter().peekable();
6128 while let Some(selection) = selections_iter.next() {
6129 // Avoid duplicating the same lines twice.
6130 let mut rows = selection.spanned_rows(false, &display_map);
6131
6132 while let Some(next_selection) = selections_iter.peek() {
6133 let next_rows = next_selection.spanned_rows(false, &display_map);
6134 if next_rows.start < rows.end {
6135 rows.end = next_rows.end;
6136 selections_iter.next().unwrap();
6137 } else {
6138 break;
6139 }
6140 }
6141
6142 // Copy the text from the selected row region and splice it either at the start
6143 // or end of the region.
6144 let start = Point::new(rows.start.0, 0);
6145 let end = Point::new(
6146 rows.end.previous_row().0,
6147 buffer.line_len(rows.end.previous_row()),
6148 );
6149 let text = buffer
6150 .text_for_range(start..end)
6151 .chain(Some("\n"))
6152 .collect::<String>();
6153 let insert_location = if upwards {
6154 Point::new(rows.end.0, 0)
6155 } else {
6156 start
6157 };
6158 edits.push((insert_location..insert_location, text));
6159 }
6160
6161 self.transact(cx, |this, cx| {
6162 this.buffer.update(cx, |buffer, cx| {
6163 buffer.edit(edits, None, cx);
6164 });
6165
6166 this.request_autoscroll(Autoscroll::fit(), cx);
6167 });
6168 }
6169
6170 pub fn duplicate_line_up(&mut self, _: &DuplicateLineUp, cx: &mut ViewContext<Self>) {
6171 self.duplicate_line(true, cx);
6172 }
6173
6174 pub fn duplicate_line_down(&mut self, _: &DuplicateLineDown, cx: &mut ViewContext<Self>) {
6175 self.duplicate_line(false, cx);
6176 }
6177
6178 pub fn move_line_up(&mut self, _: &MoveLineUp, cx: &mut ViewContext<Self>) {
6179 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
6180 let buffer = self.buffer.read(cx).snapshot(cx);
6181
6182 let mut edits = Vec::new();
6183 let mut unfold_ranges = Vec::new();
6184 let mut refold_ranges = Vec::new();
6185
6186 let selections = self.selections.all::<Point>(cx);
6187 let mut selections = selections.iter().peekable();
6188 let mut contiguous_row_selections = Vec::new();
6189 let mut new_selections = Vec::new();
6190
6191 while let Some(selection) = selections.next() {
6192 // Find all the selections that span a contiguous row range
6193 let (start_row, end_row) = consume_contiguous_rows(
6194 &mut contiguous_row_selections,
6195 selection,
6196 &display_map,
6197 &mut selections,
6198 );
6199
6200 // Move the text spanned by the row range to be before the line preceding the row range
6201 if start_row.0 > 0 {
6202 let range_to_move = Point::new(
6203 start_row.previous_row().0,
6204 buffer.line_len(start_row.previous_row()),
6205 )
6206 ..Point::new(
6207 end_row.previous_row().0,
6208 buffer.line_len(end_row.previous_row()),
6209 );
6210 let insertion_point = display_map
6211 .prev_line_boundary(Point::new(start_row.previous_row().0, 0))
6212 .0;
6213
6214 // Don't move lines across excerpts
6215 if buffer
6216 .excerpt_boundaries_in_range((
6217 Bound::Excluded(insertion_point),
6218 Bound::Included(range_to_move.end),
6219 ))
6220 .next()
6221 .is_none()
6222 {
6223 let text = buffer
6224 .text_for_range(range_to_move.clone())
6225 .flat_map(|s| s.chars())
6226 .skip(1)
6227 .chain(['\n'])
6228 .collect::<String>();
6229
6230 edits.push((
6231 buffer.anchor_after(range_to_move.start)
6232 ..buffer.anchor_before(range_to_move.end),
6233 String::new(),
6234 ));
6235 let insertion_anchor = buffer.anchor_after(insertion_point);
6236 edits.push((insertion_anchor..insertion_anchor, text));
6237
6238 let row_delta = range_to_move.start.row - insertion_point.row + 1;
6239
6240 // Move selections up
6241 new_selections.extend(contiguous_row_selections.drain(..).map(
6242 |mut selection| {
6243 selection.start.row -= row_delta;
6244 selection.end.row -= row_delta;
6245 selection
6246 },
6247 ));
6248
6249 // Move folds up
6250 unfold_ranges.push(range_to_move.clone());
6251 for fold in display_map.folds_in_range(
6252 buffer.anchor_before(range_to_move.start)
6253 ..buffer.anchor_after(range_to_move.end),
6254 ) {
6255 let mut start = fold.range.start.to_point(&buffer);
6256 let mut end = fold.range.end.to_point(&buffer);
6257 start.row -= row_delta;
6258 end.row -= row_delta;
6259 refold_ranges.push((start..end, fold.placeholder.clone()));
6260 }
6261 }
6262 }
6263
6264 // If we didn't move line(s), preserve the existing selections
6265 new_selections.append(&mut contiguous_row_selections);
6266 }
6267
6268 self.transact(cx, |this, cx| {
6269 this.unfold_ranges(unfold_ranges, true, true, cx);
6270 this.buffer.update(cx, |buffer, cx| {
6271 for (range, text) in edits {
6272 buffer.edit([(range, text)], None, cx);
6273 }
6274 });
6275 this.fold_ranges(refold_ranges, true, cx);
6276 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6277 s.select(new_selections);
6278 })
6279 });
6280 }
6281
6282 pub fn move_line_down(&mut self, _: &MoveLineDown, cx: &mut ViewContext<Self>) {
6283 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
6284 let buffer = self.buffer.read(cx).snapshot(cx);
6285
6286 let mut edits = Vec::new();
6287 let mut unfold_ranges = Vec::new();
6288 let mut refold_ranges = Vec::new();
6289
6290 let selections = self.selections.all::<Point>(cx);
6291 let mut selections = selections.iter().peekable();
6292 let mut contiguous_row_selections = Vec::new();
6293 let mut new_selections = Vec::new();
6294
6295 while let Some(selection) = selections.next() {
6296 // Find all the selections that span a contiguous row range
6297 let (start_row, end_row) = consume_contiguous_rows(
6298 &mut contiguous_row_selections,
6299 selection,
6300 &display_map,
6301 &mut selections,
6302 );
6303
6304 // Move the text spanned by the row range to be after the last line of the row range
6305 if end_row.0 <= buffer.max_point().row {
6306 let range_to_move =
6307 MultiBufferPoint::new(start_row.0, 0)..MultiBufferPoint::new(end_row.0, 0);
6308 let insertion_point = display_map
6309 .next_line_boundary(MultiBufferPoint::new(end_row.0, 0))
6310 .0;
6311
6312 // Don't move lines across excerpt boundaries
6313 if buffer
6314 .excerpt_boundaries_in_range((
6315 Bound::Excluded(range_to_move.start),
6316 Bound::Included(insertion_point),
6317 ))
6318 .next()
6319 .is_none()
6320 {
6321 let mut text = String::from("\n");
6322 text.extend(buffer.text_for_range(range_to_move.clone()));
6323 text.pop(); // Drop trailing newline
6324 edits.push((
6325 buffer.anchor_after(range_to_move.start)
6326 ..buffer.anchor_before(range_to_move.end),
6327 String::new(),
6328 ));
6329 let insertion_anchor = buffer.anchor_after(insertion_point);
6330 edits.push((insertion_anchor..insertion_anchor, text));
6331
6332 let row_delta = insertion_point.row - range_to_move.end.row + 1;
6333
6334 // Move selections down
6335 new_selections.extend(contiguous_row_selections.drain(..).map(
6336 |mut selection| {
6337 selection.start.row += row_delta;
6338 selection.end.row += row_delta;
6339 selection
6340 },
6341 ));
6342
6343 // Move folds down
6344 unfold_ranges.push(range_to_move.clone());
6345 for fold in display_map.folds_in_range(
6346 buffer.anchor_before(range_to_move.start)
6347 ..buffer.anchor_after(range_to_move.end),
6348 ) {
6349 let mut start = fold.range.start.to_point(&buffer);
6350 let mut end = fold.range.end.to_point(&buffer);
6351 start.row += row_delta;
6352 end.row += row_delta;
6353 refold_ranges.push((start..end, fold.placeholder.clone()));
6354 }
6355 }
6356 }
6357
6358 // If we didn't move line(s), preserve the existing selections
6359 new_selections.append(&mut contiguous_row_selections);
6360 }
6361
6362 self.transact(cx, |this, cx| {
6363 this.unfold_ranges(unfold_ranges, true, true, cx);
6364 this.buffer.update(cx, |buffer, cx| {
6365 for (range, text) in edits {
6366 buffer.edit([(range, text)], None, cx);
6367 }
6368 });
6369 this.fold_ranges(refold_ranges, true, cx);
6370 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(new_selections));
6371 });
6372 }
6373
6374 pub fn transpose(&mut self, _: &Transpose, cx: &mut ViewContext<Self>) {
6375 let text_layout_details = &self.text_layout_details(cx);
6376 self.transact(cx, |this, cx| {
6377 let edits = this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6378 let mut edits: Vec<(Range<usize>, String)> = Default::default();
6379 let line_mode = s.line_mode;
6380 s.move_with(|display_map, selection| {
6381 if !selection.is_empty() || line_mode {
6382 return;
6383 }
6384
6385 let mut head = selection.head();
6386 let mut transpose_offset = head.to_offset(display_map, Bias::Right);
6387 if head.column() == display_map.line_len(head.row()) {
6388 transpose_offset = display_map
6389 .buffer_snapshot
6390 .clip_offset(transpose_offset.saturating_sub(1), Bias::Left);
6391 }
6392
6393 if transpose_offset == 0 {
6394 return;
6395 }
6396
6397 *head.column_mut() += 1;
6398 head = display_map.clip_point(head, Bias::Right);
6399 let goal = SelectionGoal::HorizontalPosition(
6400 display_map
6401 .x_for_display_point(head, &text_layout_details)
6402 .into(),
6403 );
6404 selection.collapse_to(head, goal);
6405
6406 let transpose_start = display_map
6407 .buffer_snapshot
6408 .clip_offset(transpose_offset.saturating_sub(1), Bias::Left);
6409 if edits.last().map_or(true, |e| e.0.end <= transpose_start) {
6410 let transpose_end = display_map
6411 .buffer_snapshot
6412 .clip_offset(transpose_offset + 1, Bias::Right);
6413 if let Some(ch) =
6414 display_map.buffer_snapshot.chars_at(transpose_start).next()
6415 {
6416 edits.push((transpose_start..transpose_offset, String::new()));
6417 edits.push((transpose_end..transpose_end, ch.to_string()));
6418 }
6419 }
6420 });
6421 edits
6422 });
6423 this.buffer
6424 .update(cx, |buffer, cx| buffer.edit(edits, None, cx));
6425 let selections = this.selections.all::<usize>(cx);
6426 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6427 s.select(selections);
6428 });
6429 });
6430 }
6431
6432 pub fn cut(&mut self, _: &Cut, cx: &mut ViewContext<Self>) {
6433 let mut text = String::new();
6434 let buffer = self.buffer.read(cx).snapshot(cx);
6435 let mut selections = self.selections.all::<Point>(cx);
6436 let mut clipboard_selections = Vec::with_capacity(selections.len());
6437 {
6438 let max_point = buffer.max_point();
6439 let mut is_first = true;
6440 for selection in &mut selections {
6441 let is_entire_line = selection.is_empty() || self.selections.line_mode;
6442 if is_entire_line {
6443 selection.start = Point::new(selection.start.row, 0);
6444 selection.end = cmp::min(max_point, Point::new(selection.end.row + 1, 0));
6445 selection.goal = SelectionGoal::None;
6446 }
6447 if is_first {
6448 is_first = false;
6449 } else {
6450 text += "\n";
6451 }
6452 let mut len = 0;
6453 for chunk in buffer.text_for_range(selection.start..selection.end) {
6454 text.push_str(chunk);
6455 len += chunk.len();
6456 }
6457 clipboard_selections.push(ClipboardSelection {
6458 len,
6459 is_entire_line,
6460 first_line_indent: buffer
6461 .indent_size_for_line(MultiBufferRow(selection.start.row))
6462 .len,
6463 });
6464 }
6465 }
6466
6467 self.transact(cx, |this, cx| {
6468 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6469 s.select(selections);
6470 });
6471 this.insert("", cx);
6472 cx.write_to_clipboard(ClipboardItem::new(text).with_metadata(clipboard_selections));
6473 });
6474 }
6475
6476 pub fn copy(&mut self, _: &Copy, cx: &mut ViewContext<Self>) {
6477 let selections = self.selections.all::<Point>(cx);
6478 let buffer = self.buffer.read(cx).read(cx);
6479 let mut text = String::new();
6480
6481 let mut clipboard_selections = Vec::with_capacity(selections.len());
6482 {
6483 let max_point = buffer.max_point();
6484 let mut is_first = true;
6485 for selection in selections.iter() {
6486 let mut start = selection.start;
6487 let mut end = selection.end;
6488 let is_entire_line = selection.is_empty() || self.selections.line_mode;
6489 if is_entire_line {
6490 start = Point::new(start.row, 0);
6491 end = cmp::min(max_point, Point::new(end.row + 1, 0));
6492 }
6493 if is_first {
6494 is_first = false;
6495 } else {
6496 text += "\n";
6497 }
6498 let mut len = 0;
6499 for chunk in buffer.text_for_range(start..end) {
6500 text.push_str(chunk);
6501 len += chunk.len();
6502 }
6503 clipboard_selections.push(ClipboardSelection {
6504 len,
6505 is_entire_line,
6506 first_line_indent: buffer.indent_size_for_line(MultiBufferRow(start.row)).len,
6507 });
6508 }
6509 }
6510
6511 cx.write_to_clipboard(ClipboardItem::new(text).with_metadata(clipboard_selections));
6512 }
6513
6514 pub fn do_paste(
6515 &mut self,
6516 text: &String,
6517 clipboard_selections: Option<Vec<ClipboardSelection>>,
6518 handle_entire_lines: bool,
6519 cx: &mut ViewContext<Self>,
6520 ) {
6521 if self.read_only(cx) {
6522 return;
6523 }
6524
6525 let clipboard_text = Cow::Borrowed(text);
6526
6527 self.transact(cx, |this, cx| {
6528 if let Some(mut clipboard_selections) = clipboard_selections {
6529 let old_selections = this.selections.all::<usize>(cx);
6530 let all_selections_were_entire_line =
6531 clipboard_selections.iter().all(|s| s.is_entire_line);
6532 let first_selection_indent_column =
6533 clipboard_selections.first().map(|s| s.first_line_indent);
6534 if clipboard_selections.len() != old_selections.len() {
6535 clipboard_selections.drain(..);
6536 }
6537
6538 this.buffer.update(cx, |buffer, cx| {
6539 let snapshot = buffer.read(cx);
6540 let mut start_offset = 0;
6541 let mut edits = Vec::new();
6542 let mut original_indent_columns = Vec::new();
6543 for (ix, selection) in old_selections.iter().enumerate() {
6544 let to_insert;
6545 let entire_line;
6546 let original_indent_column;
6547 if let Some(clipboard_selection) = clipboard_selections.get(ix) {
6548 let end_offset = start_offset + clipboard_selection.len;
6549 to_insert = &clipboard_text[start_offset..end_offset];
6550 entire_line = clipboard_selection.is_entire_line;
6551 start_offset = end_offset + 1;
6552 original_indent_column = Some(clipboard_selection.first_line_indent);
6553 } else {
6554 to_insert = clipboard_text.as_str();
6555 entire_line = all_selections_were_entire_line;
6556 original_indent_column = first_selection_indent_column
6557 }
6558
6559 // If the corresponding selection was empty when this slice of the
6560 // clipboard text was written, then the entire line containing the
6561 // selection was copied. If this selection is also currently empty,
6562 // then paste the line before the current line of the buffer.
6563 let range = if selection.is_empty() && handle_entire_lines && entire_line {
6564 let column = selection.start.to_point(&snapshot).column as usize;
6565 let line_start = selection.start - column;
6566 line_start..line_start
6567 } else {
6568 selection.range()
6569 };
6570
6571 edits.push((range, to_insert));
6572 original_indent_columns.extend(original_indent_column);
6573 }
6574 drop(snapshot);
6575
6576 buffer.edit(
6577 edits,
6578 Some(AutoindentMode::Block {
6579 original_indent_columns,
6580 }),
6581 cx,
6582 );
6583 });
6584
6585 let selections = this.selections.all::<usize>(cx);
6586 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
6587 } else {
6588 this.insert(&clipboard_text, cx);
6589 }
6590 });
6591 }
6592
6593 pub fn paste(&mut self, _: &Paste, cx: &mut ViewContext<Self>) {
6594 if let Some(item) = cx.read_from_clipboard() {
6595 self.do_paste(
6596 item.text(),
6597 item.metadata::<Vec<ClipboardSelection>>(),
6598 true,
6599 cx,
6600 )
6601 };
6602 }
6603
6604 pub fn undo(&mut self, _: &Undo, cx: &mut ViewContext<Self>) {
6605 if self.read_only(cx) {
6606 return;
6607 }
6608
6609 if let Some(transaction_id) = self.buffer.update(cx, |buffer, cx| buffer.undo(cx)) {
6610 if let Some((selections, _)) =
6611 self.selection_history.transaction(transaction_id).cloned()
6612 {
6613 self.change_selections(None, cx, |s| {
6614 s.select_anchors(selections.to_vec());
6615 });
6616 }
6617 self.request_autoscroll(Autoscroll::fit(), cx);
6618 self.unmark_text(cx);
6619 self.refresh_inline_completion(true, cx);
6620 cx.emit(EditorEvent::Edited { transaction_id });
6621 cx.emit(EditorEvent::TransactionUndone { transaction_id });
6622 }
6623 }
6624
6625 pub fn redo(&mut self, _: &Redo, cx: &mut ViewContext<Self>) {
6626 if self.read_only(cx) {
6627 return;
6628 }
6629
6630 if let Some(transaction_id) = self.buffer.update(cx, |buffer, cx| buffer.redo(cx)) {
6631 if let Some((_, Some(selections))) =
6632 self.selection_history.transaction(transaction_id).cloned()
6633 {
6634 self.change_selections(None, cx, |s| {
6635 s.select_anchors(selections.to_vec());
6636 });
6637 }
6638 self.request_autoscroll(Autoscroll::fit(), cx);
6639 self.unmark_text(cx);
6640 self.refresh_inline_completion(true, cx);
6641 cx.emit(EditorEvent::Edited { transaction_id });
6642 }
6643 }
6644
6645 pub fn finalize_last_transaction(&mut self, cx: &mut ViewContext<Self>) {
6646 self.buffer
6647 .update(cx, |buffer, cx| buffer.finalize_last_transaction(cx));
6648 }
6649
6650 pub fn group_until_transaction(&mut self, tx_id: TransactionId, cx: &mut ViewContext<Self>) {
6651 self.buffer
6652 .update(cx, |buffer, cx| buffer.group_until_transaction(tx_id, cx));
6653 }
6654
6655 pub fn move_left(&mut self, _: &MoveLeft, cx: &mut ViewContext<Self>) {
6656 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6657 let line_mode = s.line_mode;
6658 s.move_with(|map, selection| {
6659 let cursor = if selection.is_empty() && !line_mode {
6660 movement::left(map, selection.start)
6661 } else {
6662 selection.start
6663 };
6664 selection.collapse_to(cursor, SelectionGoal::None);
6665 });
6666 })
6667 }
6668
6669 pub fn select_left(&mut self, _: &SelectLeft, cx: &mut ViewContext<Self>) {
6670 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6671 s.move_heads_with(|map, head, _| (movement::left(map, head), SelectionGoal::None));
6672 })
6673 }
6674
6675 pub fn move_right(&mut self, _: &MoveRight, cx: &mut ViewContext<Self>) {
6676 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6677 let line_mode = s.line_mode;
6678 s.move_with(|map, selection| {
6679 let cursor = if selection.is_empty() && !line_mode {
6680 movement::right(map, selection.end)
6681 } else {
6682 selection.end
6683 };
6684 selection.collapse_to(cursor, SelectionGoal::None)
6685 });
6686 })
6687 }
6688
6689 pub fn select_right(&mut self, _: &SelectRight, cx: &mut ViewContext<Self>) {
6690 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6691 s.move_heads_with(|map, head, _| (movement::right(map, head), SelectionGoal::None));
6692 })
6693 }
6694
6695 pub fn move_up(&mut self, _: &MoveUp, cx: &mut ViewContext<Self>) {
6696 if self.take_rename(true, cx).is_some() {
6697 return;
6698 }
6699
6700 if matches!(self.mode, EditorMode::SingleLine { .. }) {
6701 cx.propagate();
6702 return;
6703 }
6704
6705 let text_layout_details = &self.text_layout_details(cx);
6706 let selection_count = self.selections.count();
6707 let first_selection = self.selections.first_anchor();
6708
6709 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6710 let line_mode = s.line_mode;
6711 s.move_with(|map, selection| {
6712 if !selection.is_empty() && !line_mode {
6713 selection.goal = SelectionGoal::None;
6714 }
6715 let (cursor, goal) = movement::up(
6716 map,
6717 selection.start,
6718 selection.goal,
6719 false,
6720 &text_layout_details,
6721 );
6722 selection.collapse_to(cursor, goal);
6723 });
6724 });
6725
6726 if selection_count == 1 && first_selection.range() == self.selections.first_anchor().range()
6727 {
6728 cx.propagate();
6729 }
6730 }
6731
6732 pub fn move_up_by_lines(&mut self, action: &MoveUpByLines, cx: &mut ViewContext<Self>) {
6733 if self.take_rename(true, cx).is_some() {
6734 return;
6735 }
6736
6737 if matches!(self.mode, EditorMode::SingleLine { .. }) {
6738 cx.propagate();
6739 return;
6740 }
6741
6742 let text_layout_details = &self.text_layout_details(cx);
6743
6744 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6745 let line_mode = s.line_mode;
6746 s.move_with(|map, selection| {
6747 if !selection.is_empty() && !line_mode {
6748 selection.goal = SelectionGoal::None;
6749 }
6750 let (cursor, goal) = movement::up_by_rows(
6751 map,
6752 selection.start,
6753 action.lines,
6754 selection.goal,
6755 false,
6756 &text_layout_details,
6757 );
6758 selection.collapse_to(cursor, goal);
6759 });
6760 })
6761 }
6762
6763 pub fn move_down_by_lines(&mut self, action: &MoveDownByLines, cx: &mut ViewContext<Self>) {
6764 if self.take_rename(true, cx).is_some() {
6765 return;
6766 }
6767
6768 if matches!(self.mode, EditorMode::SingleLine { .. }) {
6769 cx.propagate();
6770 return;
6771 }
6772
6773 let text_layout_details = &self.text_layout_details(cx);
6774
6775 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6776 let line_mode = s.line_mode;
6777 s.move_with(|map, selection| {
6778 if !selection.is_empty() && !line_mode {
6779 selection.goal = SelectionGoal::None;
6780 }
6781 let (cursor, goal) = movement::down_by_rows(
6782 map,
6783 selection.start,
6784 action.lines,
6785 selection.goal,
6786 false,
6787 &text_layout_details,
6788 );
6789 selection.collapse_to(cursor, goal);
6790 });
6791 })
6792 }
6793
6794 pub fn select_down_by_lines(&mut self, action: &SelectDownByLines, cx: &mut ViewContext<Self>) {
6795 let text_layout_details = &self.text_layout_details(cx);
6796 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6797 s.move_heads_with(|map, head, goal| {
6798 movement::down_by_rows(map, head, action.lines, goal, false, &text_layout_details)
6799 })
6800 })
6801 }
6802
6803 pub fn select_up_by_lines(&mut self, action: &SelectUpByLines, cx: &mut ViewContext<Self>) {
6804 let text_layout_details = &self.text_layout_details(cx);
6805 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6806 s.move_heads_with(|map, head, goal| {
6807 movement::up_by_rows(map, head, action.lines, goal, false, &text_layout_details)
6808 })
6809 })
6810 }
6811
6812 pub fn select_page_up(&mut self, _: &SelectPageUp, cx: &mut ViewContext<Self>) {
6813 let Some(row_count) = self.visible_row_count() else {
6814 return;
6815 };
6816
6817 let text_layout_details = &self.text_layout_details(cx);
6818
6819 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6820 s.move_heads_with(|map, head, goal| {
6821 movement::up_by_rows(map, head, row_count, goal, false, &text_layout_details)
6822 })
6823 })
6824 }
6825
6826 pub fn move_page_up(&mut self, action: &MovePageUp, cx: &mut ViewContext<Self>) {
6827 if self.take_rename(true, cx).is_some() {
6828 return;
6829 }
6830
6831 if self
6832 .context_menu
6833 .write()
6834 .as_mut()
6835 .map(|menu| menu.select_first(self.project.as_ref(), cx))
6836 .unwrap_or(false)
6837 {
6838 return;
6839 }
6840
6841 if matches!(self.mode, EditorMode::SingleLine { .. }) {
6842 cx.propagate();
6843 return;
6844 }
6845
6846 let Some(row_count) = self.visible_row_count() else {
6847 return;
6848 };
6849
6850 let autoscroll = if action.center_cursor {
6851 Autoscroll::center()
6852 } else {
6853 Autoscroll::fit()
6854 };
6855
6856 let text_layout_details = &self.text_layout_details(cx);
6857
6858 self.change_selections(Some(autoscroll), cx, |s| {
6859 let line_mode = s.line_mode;
6860 s.move_with(|map, selection| {
6861 if !selection.is_empty() && !line_mode {
6862 selection.goal = SelectionGoal::None;
6863 }
6864 let (cursor, goal) = movement::up_by_rows(
6865 map,
6866 selection.end,
6867 row_count,
6868 selection.goal,
6869 false,
6870 &text_layout_details,
6871 );
6872 selection.collapse_to(cursor, goal);
6873 });
6874 });
6875 }
6876
6877 pub fn select_up(&mut self, _: &SelectUp, cx: &mut ViewContext<Self>) {
6878 let text_layout_details = &self.text_layout_details(cx);
6879 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6880 s.move_heads_with(|map, head, goal| {
6881 movement::up(map, head, goal, false, &text_layout_details)
6882 })
6883 })
6884 }
6885
6886 pub fn move_down(&mut self, _: &MoveDown, cx: &mut ViewContext<Self>) {
6887 self.take_rename(true, cx);
6888
6889 if matches!(self.mode, EditorMode::SingleLine { .. }) {
6890 cx.propagate();
6891 return;
6892 }
6893
6894 let text_layout_details = &self.text_layout_details(cx);
6895 let selection_count = self.selections.count();
6896 let first_selection = self.selections.first_anchor();
6897
6898 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6899 let line_mode = s.line_mode;
6900 s.move_with(|map, selection| {
6901 if !selection.is_empty() && !line_mode {
6902 selection.goal = SelectionGoal::None;
6903 }
6904 let (cursor, goal) = movement::down(
6905 map,
6906 selection.end,
6907 selection.goal,
6908 false,
6909 &text_layout_details,
6910 );
6911 selection.collapse_to(cursor, goal);
6912 });
6913 });
6914
6915 if selection_count == 1 && first_selection.range() == self.selections.first_anchor().range()
6916 {
6917 cx.propagate();
6918 }
6919 }
6920
6921 pub fn select_page_down(&mut self, _: &SelectPageDown, cx: &mut ViewContext<Self>) {
6922 let Some(row_count) = self.visible_row_count() else {
6923 return;
6924 };
6925
6926 let text_layout_details = &self.text_layout_details(cx);
6927
6928 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6929 s.move_heads_with(|map, head, goal| {
6930 movement::down_by_rows(map, head, row_count, goal, false, &text_layout_details)
6931 })
6932 })
6933 }
6934
6935 pub fn move_page_down(&mut self, action: &MovePageDown, cx: &mut ViewContext<Self>) {
6936 if self.take_rename(true, cx).is_some() {
6937 return;
6938 }
6939
6940 if self
6941 .context_menu
6942 .write()
6943 .as_mut()
6944 .map(|menu| menu.select_last(self.project.as_ref(), cx))
6945 .unwrap_or(false)
6946 {
6947 return;
6948 }
6949
6950 if matches!(self.mode, EditorMode::SingleLine { .. }) {
6951 cx.propagate();
6952 return;
6953 }
6954
6955 let Some(row_count) = self.visible_row_count() else {
6956 return;
6957 };
6958
6959 let autoscroll = if action.center_cursor {
6960 Autoscroll::center()
6961 } else {
6962 Autoscroll::fit()
6963 };
6964
6965 let text_layout_details = &self.text_layout_details(cx);
6966 self.change_selections(Some(autoscroll), cx, |s| {
6967 let line_mode = s.line_mode;
6968 s.move_with(|map, selection| {
6969 if !selection.is_empty() && !line_mode {
6970 selection.goal = SelectionGoal::None;
6971 }
6972 let (cursor, goal) = movement::down_by_rows(
6973 map,
6974 selection.end,
6975 row_count,
6976 selection.goal,
6977 false,
6978 &text_layout_details,
6979 );
6980 selection.collapse_to(cursor, goal);
6981 });
6982 });
6983 }
6984
6985 pub fn select_down(&mut self, _: &SelectDown, cx: &mut ViewContext<Self>) {
6986 let text_layout_details = &self.text_layout_details(cx);
6987 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6988 s.move_heads_with(|map, head, goal| {
6989 movement::down(map, head, goal, false, &text_layout_details)
6990 })
6991 });
6992 }
6993
6994 pub fn context_menu_first(&mut self, _: &ContextMenuFirst, cx: &mut ViewContext<Self>) {
6995 if let Some(context_menu) = self.context_menu.write().as_mut() {
6996 context_menu.select_first(self.project.as_ref(), cx);
6997 }
6998 }
6999
7000 pub fn context_menu_prev(&mut self, _: &ContextMenuPrev, cx: &mut ViewContext<Self>) {
7001 if let Some(context_menu) = self.context_menu.write().as_mut() {
7002 context_menu.select_prev(self.project.as_ref(), cx);
7003 }
7004 }
7005
7006 pub fn context_menu_next(&mut self, _: &ContextMenuNext, cx: &mut ViewContext<Self>) {
7007 if let Some(context_menu) = self.context_menu.write().as_mut() {
7008 context_menu.select_next(self.project.as_ref(), cx);
7009 }
7010 }
7011
7012 pub fn context_menu_last(&mut self, _: &ContextMenuLast, cx: &mut ViewContext<Self>) {
7013 if let Some(context_menu) = self.context_menu.write().as_mut() {
7014 context_menu.select_last(self.project.as_ref(), cx);
7015 }
7016 }
7017
7018 pub fn move_to_previous_word_start(
7019 &mut self,
7020 _: &MoveToPreviousWordStart,
7021 cx: &mut ViewContext<Self>,
7022 ) {
7023 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7024 s.move_cursors_with(|map, head, _| {
7025 (
7026 movement::previous_word_start(map, head),
7027 SelectionGoal::None,
7028 )
7029 });
7030 })
7031 }
7032
7033 pub fn move_to_previous_subword_start(
7034 &mut self,
7035 _: &MoveToPreviousSubwordStart,
7036 cx: &mut ViewContext<Self>,
7037 ) {
7038 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7039 s.move_cursors_with(|map, head, _| {
7040 (
7041 movement::previous_subword_start(map, head),
7042 SelectionGoal::None,
7043 )
7044 });
7045 })
7046 }
7047
7048 pub fn select_to_previous_word_start(
7049 &mut self,
7050 _: &SelectToPreviousWordStart,
7051 cx: &mut ViewContext<Self>,
7052 ) {
7053 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7054 s.move_heads_with(|map, head, _| {
7055 (
7056 movement::previous_word_start(map, head),
7057 SelectionGoal::None,
7058 )
7059 });
7060 })
7061 }
7062
7063 pub fn select_to_previous_subword_start(
7064 &mut self,
7065 _: &SelectToPreviousSubwordStart,
7066 cx: &mut ViewContext<Self>,
7067 ) {
7068 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7069 s.move_heads_with(|map, head, _| {
7070 (
7071 movement::previous_subword_start(map, head),
7072 SelectionGoal::None,
7073 )
7074 });
7075 })
7076 }
7077
7078 pub fn delete_to_previous_word_start(
7079 &mut self,
7080 _: &DeleteToPreviousWordStart,
7081 cx: &mut ViewContext<Self>,
7082 ) {
7083 self.transact(cx, |this, cx| {
7084 this.select_autoclose_pair(cx);
7085 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
7086 let line_mode = s.line_mode;
7087 s.move_with(|map, selection| {
7088 if selection.is_empty() && !line_mode {
7089 let cursor = movement::previous_word_start(map, selection.head());
7090 selection.set_head(cursor, SelectionGoal::None);
7091 }
7092 });
7093 });
7094 this.insert("", cx);
7095 });
7096 }
7097
7098 pub fn delete_to_previous_subword_start(
7099 &mut self,
7100 _: &DeleteToPreviousSubwordStart,
7101 cx: &mut ViewContext<Self>,
7102 ) {
7103 self.transact(cx, |this, cx| {
7104 this.select_autoclose_pair(cx);
7105 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
7106 let line_mode = s.line_mode;
7107 s.move_with(|map, selection| {
7108 if selection.is_empty() && !line_mode {
7109 let cursor = movement::previous_subword_start(map, selection.head());
7110 selection.set_head(cursor, SelectionGoal::None);
7111 }
7112 });
7113 });
7114 this.insert("", cx);
7115 });
7116 }
7117
7118 pub fn move_to_next_word_end(&mut self, _: &MoveToNextWordEnd, cx: &mut ViewContext<Self>) {
7119 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7120 s.move_cursors_with(|map, head, _| {
7121 (movement::next_word_end(map, head), SelectionGoal::None)
7122 });
7123 })
7124 }
7125
7126 pub fn move_to_next_subword_end(
7127 &mut self,
7128 _: &MoveToNextSubwordEnd,
7129 cx: &mut ViewContext<Self>,
7130 ) {
7131 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7132 s.move_cursors_with(|map, head, _| {
7133 (movement::next_subword_end(map, head), SelectionGoal::None)
7134 });
7135 })
7136 }
7137
7138 pub fn select_to_next_word_end(&mut self, _: &SelectToNextWordEnd, cx: &mut ViewContext<Self>) {
7139 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7140 s.move_heads_with(|map, head, _| {
7141 (movement::next_word_end(map, head), SelectionGoal::None)
7142 });
7143 })
7144 }
7145
7146 pub fn select_to_next_subword_end(
7147 &mut self,
7148 _: &SelectToNextSubwordEnd,
7149 cx: &mut ViewContext<Self>,
7150 ) {
7151 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7152 s.move_heads_with(|map, head, _| {
7153 (movement::next_subword_end(map, head), SelectionGoal::None)
7154 });
7155 })
7156 }
7157
7158 pub fn delete_to_next_word_end(&mut self, _: &DeleteToNextWordEnd, cx: &mut ViewContext<Self>) {
7159 self.transact(cx, |this, cx| {
7160 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
7161 let line_mode = s.line_mode;
7162 s.move_with(|map, selection| {
7163 if selection.is_empty() && !line_mode {
7164 let cursor = movement::next_word_end(map, selection.head());
7165 selection.set_head(cursor, SelectionGoal::None);
7166 }
7167 });
7168 });
7169 this.insert("", cx);
7170 });
7171 }
7172
7173 pub fn delete_to_next_subword_end(
7174 &mut self,
7175 _: &DeleteToNextSubwordEnd,
7176 cx: &mut ViewContext<Self>,
7177 ) {
7178 self.transact(cx, |this, cx| {
7179 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
7180 s.move_with(|map, selection| {
7181 if selection.is_empty() {
7182 let cursor = movement::next_subword_end(map, selection.head());
7183 selection.set_head(cursor, SelectionGoal::None);
7184 }
7185 });
7186 });
7187 this.insert("", cx);
7188 });
7189 }
7190
7191 pub fn move_to_beginning_of_line(
7192 &mut self,
7193 action: &MoveToBeginningOfLine,
7194 cx: &mut ViewContext<Self>,
7195 ) {
7196 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7197 s.move_cursors_with(|map, head, _| {
7198 (
7199 movement::indented_line_beginning(map, head, action.stop_at_soft_wraps),
7200 SelectionGoal::None,
7201 )
7202 });
7203 })
7204 }
7205
7206 pub fn select_to_beginning_of_line(
7207 &mut self,
7208 action: &SelectToBeginningOfLine,
7209 cx: &mut ViewContext<Self>,
7210 ) {
7211 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7212 s.move_heads_with(|map, head, _| {
7213 (
7214 movement::indented_line_beginning(map, head, action.stop_at_soft_wraps),
7215 SelectionGoal::None,
7216 )
7217 });
7218 });
7219 }
7220
7221 pub fn delete_to_beginning_of_line(
7222 &mut self,
7223 _: &DeleteToBeginningOfLine,
7224 cx: &mut ViewContext<Self>,
7225 ) {
7226 self.transact(cx, |this, cx| {
7227 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
7228 s.move_with(|_, selection| {
7229 selection.reversed = true;
7230 });
7231 });
7232
7233 this.select_to_beginning_of_line(
7234 &SelectToBeginningOfLine {
7235 stop_at_soft_wraps: false,
7236 },
7237 cx,
7238 );
7239 this.backspace(&Backspace, cx);
7240 });
7241 }
7242
7243 pub fn move_to_end_of_line(&mut self, action: &MoveToEndOfLine, cx: &mut ViewContext<Self>) {
7244 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7245 s.move_cursors_with(|map, head, _| {
7246 (
7247 movement::line_end(map, head, action.stop_at_soft_wraps),
7248 SelectionGoal::None,
7249 )
7250 });
7251 })
7252 }
7253
7254 pub fn select_to_end_of_line(
7255 &mut self,
7256 action: &SelectToEndOfLine,
7257 cx: &mut ViewContext<Self>,
7258 ) {
7259 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7260 s.move_heads_with(|map, head, _| {
7261 (
7262 movement::line_end(map, head, action.stop_at_soft_wraps),
7263 SelectionGoal::None,
7264 )
7265 });
7266 })
7267 }
7268
7269 pub fn delete_to_end_of_line(&mut self, _: &DeleteToEndOfLine, cx: &mut ViewContext<Self>) {
7270 self.transact(cx, |this, cx| {
7271 this.select_to_end_of_line(
7272 &SelectToEndOfLine {
7273 stop_at_soft_wraps: false,
7274 },
7275 cx,
7276 );
7277 this.delete(&Delete, cx);
7278 });
7279 }
7280
7281 pub fn cut_to_end_of_line(&mut self, _: &CutToEndOfLine, cx: &mut ViewContext<Self>) {
7282 self.transact(cx, |this, cx| {
7283 this.select_to_end_of_line(
7284 &SelectToEndOfLine {
7285 stop_at_soft_wraps: false,
7286 },
7287 cx,
7288 );
7289 this.cut(&Cut, cx);
7290 });
7291 }
7292
7293 pub fn move_to_start_of_paragraph(
7294 &mut self,
7295 _: &MoveToStartOfParagraph,
7296 cx: &mut ViewContext<Self>,
7297 ) {
7298 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7299 cx.propagate();
7300 return;
7301 }
7302
7303 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7304 s.move_with(|map, selection| {
7305 selection.collapse_to(
7306 movement::start_of_paragraph(map, selection.head(), 1),
7307 SelectionGoal::None,
7308 )
7309 });
7310 })
7311 }
7312
7313 pub fn move_to_end_of_paragraph(
7314 &mut self,
7315 _: &MoveToEndOfParagraph,
7316 cx: &mut ViewContext<Self>,
7317 ) {
7318 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7319 cx.propagate();
7320 return;
7321 }
7322
7323 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7324 s.move_with(|map, selection| {
7325 selection.collapse_to(
7326 movement::end_of_paragraph(map, selection.head(), 1),
7327 SelectionGoal::None,
7328 )
7329 });
7330 })
7331 }
7332
7333 pub fn select_to_start_of_paragraph(
7334 &mut self,
7335 _: &SelectToStartOfParagraph,
7336 cx: &mut ViewContext<Self>,
7337 ) {
7338 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7339 cx.propagate();
7340 return;
7341 }
7342
7343 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7344 s.move_heads_with(|map, head, _| {
7345 (
7346 movement::start_of_paragraph(map, head, 1),
7347 SelectionGoal::None,
7348 )
7349 });
7350 })
7351 }
7352
7353 pub fn select_to_end_of_paragraph(
7354 &mut self,
7355 _: &SelectToEndOfParagraph,
7356 cx: &mut ViewContext<Self>,
7357 ) {
7358 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7359 cx.propagate();
7360 return;
7361 }
7362
7363 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7364 s.move_heads_with(|map, head, _| {
7365 (
7366 movement::end_of_paragraph(map, head, 1),
7367 SelectionGoal::None,
7368 )
7369 });
7370 })
7371 }
7372
7373 pub fn move_to_beginning(&mut self, _: &MoveToBeginning, cx: &mut ViewContext<Self>) {
7374 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7375 cx.propagate();
7376 return;
7377 }
7378
7379 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7380 s.select_ranges(vec![0..0]);
7381 });
7382 }
7383
7384 pub fn select_to_beginning(&mut self, _: &SelectToBeginning, cx: &mut ViewContext<Self>) {
7385 let mut selection = self.selections.last::<Point>(cx);
7386 selection.set_head(Point::zero(), SelectionGoal::None);
7387
7388 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7389 s.select(vec![selection]);
7390 });
7391 }
7392
7393 pub fn move_to_end(&mut self, _: &MoveToEnd, cx: &mut ViewContext<Self>) {
7394 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7395 cx.propagate();
7396 return;
7397 }
7398
7399 let cursor = self.buffer.read(cx).read(cx).len();
7400 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7401 s.select_ranges(vec![cursor..cursor])
7402 });
7403 }
7404
7405 pub fn set_nav_history(&mut self, nav_history: Option<ItemNavHistory>) {
7406 self.nav_history = nav_history;
7407 }
7408
7409 pub fn nav_history(&self) -> Option<&ItemNavHistory> {
7410 self.nav_history.as_ref()
7411 }
7412
7413 fn push_to_nav_history(
7414 &mut self,
7415 cursor_anchor: Anchor,
7416 new_position: Option<Point>,
7417 cx: &mut ViewContext<Self>,
7418 ) {
7419 if let Some(nav_history) = self.nav_history.as_mut() {
7420 let buffer = self.buffer.read(cx).read(cx);
7421 let cursor_position = cursor_anchor.to_point(&buffer);
7422 let scroll_state = self.scroll_manager.anchor();
7423 let scroll_top_row = scroll_state.top_row(&buffer);
7424 drop(buffer);
7425
7426 if let Some(new_position) = new_position {
7427 let row_delta = (new_position.row as i64 - cursor_position.row as i64).abs();
7428 if row_delta < MIN_NAVIGATION_HISTORY_ROW_DELTA {
7429 return;
7430 }
7431 }
7432
7433 nav_history.push(
7434 Some(NavigationData {
7435 cursor_anchor,
7436 cursor_position,
7437 scroll_anchor: scroll_state,
7438 scroll_top_row,
7439 }),
7440 cx,
7441 );
7442 }
7443 }
7444
7445 pub fn select_to_end(&mut self, _: &SelectToEnd, cx: &mut ViewContext<Self>) {
7446 let buffer = self.buffer.read(cx).snapshot(cx);
7447 let mut selection = self.selections.first::<usize>(cx);
7448 selection.set_head(buffer.len(), SelectionGoal::None);
7449 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7450 s.select(vec![selection]);
7451 });
7452 }
7453
7454 pub fn select_all(&mut self, _: &SelectAll, cx: &mut ViewContext<Self>) {
7455 let end = self.buffer.read(cx).read(cx).len();
7456 self.change_selections(None, cx, |s| {
7457 s.select_ranges(vec![0..end]);
7458 });
7459 }
7460
7461 pub fn select_line(&mut self, _: &SelectLine, cx: &mut ViewContext<Self>) {
7462 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
7463 let mut selections = self.selections.all::<Point>(cx);
7464 let max_point = display_map.buffer_snapshot.max_point();
7465 for selection in &mut selections {
7466 let rows = selection.spanned_rows(true, &display_map);
7467 selection.start = Point::new(rows.start.0, 0);
7468 selection.end = cmp::min(max_point, Point::new(rows.end.0, 0));
7469 selection.reversed = false;
7470 }
7471 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7472 s.select(selections);
7473 });
7474 }
7475
7476 pub fn split_selection_into_lines(
7477 &mut self,
7478 _: &SplitSelectionIntoLines,
7479 cx: &mut ViewContext<Self>,
7480 ) {
7481 let mut to_unfold = Vec::new();
7482 let mut new_selection_ranges = Vec::new();
7483 {
7484 let selections = self.selections.all::<Point>(cx);
7485 let buffer = self.buffer.read(cx).read(cx);
7486 for selection in selections {
7487 for row in selection.start.row..selection.end.row {
7488 let cursor = Point::new(row, buffer.line_len(MultiBufferRow(row)));
7489 new_selection_ranges.push(cursor..cursor);
7490 }
7491 new_selection_ranges.push(selection.end..selection.end);
7492 to_unfold.push(selection.start..selection.end);
7493 }
7494 }
7495 self.unfold_ranges(to_unfold, true, true, cx);
7496 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7497 s.select_ranges(new_selection_ranges);
7498 });
7499 }
7500
7501 pub fn add_selection_above(&mut self, _: &AddSelectionAbove, cx: &mut ViewContext<Self>) {
7502 self.add_selection(true, cx);
7503 }
7504
7505 pub fn add_selection_below(&mut self, _: &AddSelectionBelow, cx: &mut ViewContext<Self>) {
7506 self.add_selection(false, cx);
7507 }
7508
7509 fn add_selection(&mut self, above: bool, cx: &mut ViewContext<Self>) {
7510 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
7511 let mut selections = self.selections.all::<Point>(cx);
7512 let text_layout_details = self.text_layout_details(cx);
7513 let mut state = self.add_selections_state.take().unwrap_or_else(|| {
7514 let oldest_selection = selections.iter().min_by_key(|s| s.id).unwrap().clone();
7515 let range = oldest_selection.display_range(&display_map).sorted();
7516
7517 let start_x = display_map.x_for_display_point(range.start, &text_layout_details);
7518 let end_x = display_map.x_for_display_point(range.end, &text_layout_details);
7519 let positions = start_x.min(end_x)..start_x.max(end_x);
7520
7521 selections.clear();
7522 let mut stack = Vec::new();
7523 for row in range.start.row().0..=range.end.row().0 {
7524 if let Some(selection) = self.selections.build_columnar_selection(
7525 &display_map,
7526 DisplayRow(row),
7527 &positions,
7528 oldest_selection.reversed,
7529 &text_layout_details,
7530 ) {
7531 stack.push(selection.id);
7532 selections.push(selection);
7533 }
7534 }
7535
7536 if above {
7537 stack.reverse();
7538 }
7539
7540 AddSelectionsState { above, stack }
7541 });
7542
7543 let last_added_selection = *state.stack.last().unwrap();
7544 let mut new_selections = Vec::new();
7545 if above == state.above {
7546 let end_row = if above {
7547 DisplayRow(0)
7548 } else {
7549 display_map.max_point().row()
7550 };
7551
7552 'outer: for selection in selections {
7553 if selection.id == last_added_selection {
7554 let range = selection.display_range(&display_map).sorted();
7555 debug_assert_eq!(range.start.row(), range.end.row());
7556 let mut row = range.start.row();
7557 let positions =
7558 if let SelectionGoal::HorizontalRange { start, end } = selection.goal {
7559 px(start)..px(end)
7560 } else {
7561 let start_x =
7562 display_map.x_for_display_point(range.start, &text_layout_details);
7563 let end_x =
7564 display_map.x_for_display_point(range.end, &text_layout_details);
7565 start_x.min(end_x)..start_x.max(end_x)
7566 };
7567
7568 while row != end_row {
7569 if above {
7570 row.0 -= 1;
7571 } else {
7572 row.0 += 1;
7573 }
7574
7575 if let Some(new_selection) = self.selections.build_columnar_selection(
7576 &display_map,
7577 row,
7578 &positions,
7579 selection.reversed,
7580 &text_layout_details,
7581 ) {
7582 state.stack.push(new_selection.id);
7583 if above {
7584 new_selections.push(new_selection);
7585 new_selections.push(selection);
7586 } else {
7587 new_selections.push(selection);
7588 new_selections.push(new_selection);
7589 }
7590
7591 continue 'outer;
7592 }
7593 }
7594 }
7595
7596 new_selections.push(selection);
7597 }
7598 } else {
7599 new_selections = selections;
7600 new_selections.retain(|s| s.id != last_added_selection);
7601 state.stack.pop();
7602 }
7603
7604 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7605 s.select(new_selections);
7606 });
7607 if state.stack.len() > 1 {
7608 self.add_selections_state = Some(state);
7609 }
7610 }
7611
7612 pub fn select_next_match_internal(
7613 &mut self,
7614 display_map: &DisplaySnapshot,
7615 replace_newest: bool,
7616 autoscroll: Option<Autoscroll>,
7617 cx: &mut ViewContext<Self>,
7618 ) -> Result<()> {
7619 fn select_next_match_ranges(
7620 this: &mut Editor,
7621 range: Range<usize>,
7622 replace_newest: bool,
7623 auto_scroll: Option<Autoscroll>,
7624 cx: &mut ViewContext<Editor>,
7625 ) {
7626 this.unfold_ranges([range.clone()], false, true, cx);
7627 this.change_selections(auto_scroll, cx, |s| {
7628 if replace_newest {
7629 s.delete(s.newest_anchor().id);
7630 }
7631 s.insert_range(range.clone());
7632 });
7633 }
7634
7635 let buffer = &display_map.buffer_snapshot;
7636 let mut selections = self.selections.all::<usize>(cx);
7637 if let Some(mut select_next_state) = self.select_next_state.take() {
7638 let query = &select_next_state.query;
7639 if !select_next_state.done {
7640 let first_selection = selections.iter().min_by_key(|s| s.id).unwrap();
7641 let last_selection = selections.iter().max_by_key(|s| s.id).unwrap();
7642 let mut next_selected_range = None;
7643
7644 let bytes_after_last_selection =
7645 buffer.bytes_in_range(last_selection.end..buffer.len());
7646 let bytes_before_first_selection = buffer.bytes_in_range(0..first_selection.start);
7647 let query_matches = query
7648 .stream_find_iter(bytes_after_last_selection)
7649 .map(|result| (last_selection.end, result))
7650 .chain(
7651 query
7652 .stream_find_iter(bytes_before_first_selection)
7653 .map(|result| (0, result)),
7654 );
7655
7656 for (start_offset, query_match) in query_matches {
7657 let query_match = query_match.unwrap(); // can only fail due to I/O
7658 let offset_range =
7659 start_offset + query_match.start()..start_offset + query_match.end();
7660 let display_range = offset_range.start.to_display_point(&display_map)
7661 ..offset_range.end.to_display_point(&display_map);
7662
7663 if !select_next_state.wordwise
7664 || (!movement::is_inside_word(&display_map, display_range.start)
7665 && !movement::is_inside_word(&display_map, display_range.end))
7666 {
7667 // TODO: This is n^2, because we might check all the selections
7668 if !selections
7669 .iter()
7670 .any(|selection| selection.range().overlaps(&offset_range))
7671 {
7672 next_selected_range = Some(offset_range);
7673 break;
7674 }
7675 }
7676 }
7677
7678 if let Some(next_selected_range) = next_selected_range {
7679 select_next_match_ranges(
7680 self,
7681 next_selected_range,
7682 replace_newest,
7683 autoscroll,
7684 cx,
7685 );
7686 } else {
7687 select_next_state.done = true;
7688 }
7689 }
7690
7691 self.select_next_state = Some(select_next_state);
7692 } else {
7693 let mut only_carets = true;
7694 let mut same_text_selected = true;
7695 let mut selected_text = None;
7696
7697 let mut selections_iter = selections.iter().peekable();
7698 while let Some(selection) = selections_iter.next() {
7699 if selection.start != selection.end {
7700 only_carets = false;
7701 }
7702
7703 if same_text_selected {
7704 if selected_text.is_none() {
7705 selected_text =
7706 Some(buffer.text_for_range(selection.range()).collect::<String>());
7707 }
7708
7709 if let Some(next_selection) = selections_iter.peek() {
7710 if next_selection.range().len() == selection.range().len() {
7711 let next_selected_text = buffer
7712 .text_for_range(next_selection.range())
7713 .collect::<String>();
7714 if Some(next_selected_text) != selected_text {
7715 same_text_selected = false;
7716 selected_text = None;
7717 }
7718 } else {
7719 same_text_selected = false;
7720 selected_text = None;
7721 }
7722 }
7723 }
7724 }
7725
7726 if only_carets {
7727 for selection in &mut selections {
7728 let word_range = movement::surrounding_word(
7729 &display_map,
7730 selection.start.to_display_point(&display_map),
7731 );
7732 selection.start = word_range.start.to_offset(&display_map, Bias::Left);
7733 selection.end = word_range.end.to_offset(&display_map, Bias::Left);
7734 selection.goal = SelectionGoal::None;
7735 selection.reversed = false;
7736 select_next_match_ranges(
7737 self,
7738 selection.start..selection.end,
7739 replace_newest,
7740 autoscroll,
7741 cx,
7742 );
7743 }
7744
7745 if selections.len() == 1 {
7746 let selection = selections
7747 .last()
7748 .expect("ensured that there's only one selection");
7749 let query = buffer
7750 .text_for_range(selection.start..selection.end)
7751 .collect::<String>();
7752 let is_empty = query.is_empty();
7753 let select_state = SelectNextState {
7754 query: AhoCorasick::new(&[query])?,
7755 wordwise: true,
7756 done: is_empty,
7757 };
7758 self.select_next_state = Some(select_state);
7759 } else {
7760 self.select_next_state = None;
7761 }
7762 } else if let Some(selected_text) = selected_text {
7763 self.select_next_state = Some(SelectNextState {
7764 query: AhoCorasick::new(&[selected_text])?,
7765 wordwise: false,
7766 done: false,
7767 });
7768 self.select_next_match_internal(display_map, replace_newest, autoscroll, cx)?;
7769 }
7770 }
7771 Ok(())
7772 }
7773
7774 pub fn select_all_matches(
7775 &mut self,
7776 _action: &SelectAllMatches,
7777 cx: &mut ViewContext<Self>,
7778 ) -> Result<()> {
7779 self.push_to_selection_history();
7780 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
7781
7782 self.select_next_match_internal(&display_map, false, None, cx)?;
7783 let Some(select_next_state) = self.select_next_state.as_mut() else {
7784 return Ok(());
7785 };
7786 if select_next_state.done {
7787 return Ok(());
7788 }
7789
7790 let mut new_selections = self.selections.all::<usize>(cx);
7791
7792 let buffer = &display_map.buffer_snapshot;
7793 let query_matches = select_next_state
7794 .query
7795 .stream_find_iter(buffer.bytes_in_range(0..buffer.len()));
7796
7797 for query_match in query_matches {
7798 let query_match = query_match.unwrap(); // can only fail due to I/O
7799 let offset_range = query_match.start()..query_match.end();
7800 let display_range = offset_range.start.to_display_point(&display_map)
7801 ..offset_range.end.to_display_point(&display_map);
7802
7803 if !select_next_state.wordwise
7804 || (!movement::is_inside_word(&display_map, display_range.start)
7805 && !movement::is_inside_word(&display_map, display_range.end))
7806 {
7807 self.selections.change_with(cx, |selections| {
7808 new_selections.push(Selection {
7809 id: selections.new_selection_id(),
7810 start: offset_range.start,
7811 end: offset_range.end,
7812 reversed: false,
7813 goal: SelectionGoal::None,
7814 });
7815 });
7816 }
7817 }
7818
7819 new_selections.sort_by_key(|selection| selection.start);
7820 let mut ix = 0;
7821 while ix + 1 < new_selections.len() {
7822 let current_selection = &new_selections[ix];
7823 let next_selection = &new_selections[ix + 1];
7824 if current_selection.range().overlaps(&next_selection.range()) {
7825 if current_selection.id < next_selection.id {
7826 new_selections.remove(ix + 1);
7827 } else {
7828 new_selections.remove(ix);
7829 }
7830 } else {
7831 ix += 1;
7832 }
7833 }
7834
7835 select_next_state.done = true;
7836 self.unfold_ranges(
7837 new_selections.iter().map(|selection| selection.range()),
7838 false,
7839 false,
7840 cx,
7841 );
7842 self.change_selections(Some(Autoscroll::fit()), cx, |selections| {
7843 selections.select(new_selections)
7844 });
7845
7846 Ok(())
7847 }
7848
7849 pub fn select_next(&mut self, action: &SelectNext, cx: &mut ViewContext<Self>) -> Result<()> {
7850 self.push_to_selection_history();
7851 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
7852 self.select_next_match_internal(
7853 &display_map,
7854 action.replace_newest,
7855 Some(Autoscroll::newest()),
7856 cx,
7857 )?;
7858 Ok(())
7859 }
7860
7861 pub fn select_previous(
7862 &mut self,
7863 action: &SelectPrevious,
7864 cx: &mut ViewContext<Self>,
7865 ) -> Result<()> {
7866 self.push_to_selection_history();
7867 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
7868 let buffer = &display_map.buffer_snapshot;
7869 let mut selections = self.selections.all::<usize>(cx);
7870 if let Some(mut select_prev_state) = self.select_prev_state.take() {
7871 let query = &select_prev_state.query;
7872 if !select_prev_state.done {
7873 let first_selection = selections.iter().min_by_key(|s| s.id).unwrap();
7874 let last_selection = selections.iter().max_by_key(|s| s.id).unwrap();
7875 let mut next_selected_range = None;
7876 // When we're iterating matches backwards, the oldest match will actually be the furthest one in the buffer.
7877 let bytes_before_last_selection =
7878 buffer.reversed_bytes_in_range(0..last_selection.start);
7879 let bytes_after_first_selection =
7880 buffer.reversed_bytes_in_range(first_selection.end..buffer.len());
7881 let query_matches = query
7882 .stream_find_iter(bytes_before_last_selection)
7883 .map(|result| (last_selection.start, result))
7884 .chain(
7885 query
7886 .stream_find_iter(bytes_after_first_selection)
7887 .map(|result| (buffer.len(), result)),
7888 );
7889 for (end_offset, query_match) in query_matches {
7890 let query_match = query_match.unwrap(); // can only fail due to I/O
7891 let offset_range =
7892 end_offset - query_match.end()..end_offset - query_match.start();
7893 let display_range = offset_range.start.to_display_point(&display_map)
7894 ..offset_range.end.to_display_point(&display_map);
7895
7896 if !select_prev_state.wordwise
7897 || (!movement::is_inside_word(&display_map, display_range.start)
7898 && !movement::is_inside_word(&display_map, display_range.end))
7899 {
7900 next_selected_range = Some(offset_range);
7901 break;
7902 }
7903 }
7904
7905 if let Some(next_selected_range) = next_selected_range {
7906 self.unfold_ranges([next_selected_range.clone()], false, true, cx);
7907 self.change_selections(Some(Autoscroll::newest()), cx, |s| {
7908 if action.replace_newest {
7909 s.delete(s.newest_anchor().id);
7910 }
7911 s.insert_range(next_selected_range);
7912 });
7913 } else {
7914 select_prev_state.done = true;
7915 }
7916 }
7917
7918 self.select_prev_state = Some(select_prev_state);
7919 } else {
7920 let mut only_carets = true;
7921 let mut same_text_selected = true;
7922 let mut selected_text = None;
7923
7924 let mut selections_iter = selections.iter().peekable();
7925 while let Some(selection) = selections_iter.next() {
7926 if selection.start != selection.end {
7927 only_carets = false;
7928 }
7929
7930 if same_text_selected {
7931 if selected_text.is_none() {
7932 selected_text =
7933 Some(buffer.text_for_range(selection.range()).collect::<String>());
7934 }
7935
7936 if let Some(next_selection) = selections_iter.peek() {
7937 if next_selection.range().len() == selection.range().len() {
7938 let next_selected_text = buffer
7939 .text_for_range(next_selection.range())
7940 .collect::<String>();
7941 if Some(next_selected_text) != selected_text {
7942 same_text_selected = false;
7943 selected_text = None;
7944 }
7945 } else {
7946 same_text_selected = false;
7947 selected_text = None;
7948 }
7949 }
7950 }
7951 }
7952
7953 if only_carets {
7954 for selection in &mut selections {
7955 let word_range = movement::surrounding_word(
7956 &display_map,
7957 selection.start.to_display_point(&display_map),
7958 );
7959 selection.start = word_range.start.to_offset(&display_map, Bias::Left);
7960 selection.end = word_range.end.to_offset(&display_map, Bias::Left);
7961 selection.goal = SelectionGoal::None;
7962 selection.reversed = false;
7963 }
7964 if selections.len() == 1 {
7965 let selection = selections
7966 .last()
7967 .expect("ensured that there's only one selection");
7968 let query = buffer
7969 .text_for_range(selection.start..selection.end)
7970 .collect::<String>();
7971 let is_empty = query.is_empty();
7972 let select_state = SelectNextState {
7973 query: AhoCorasick::new(&[query.chars().rev().collect::<String>()])?,
7974 wordwise: true,
7975 done: is_empty,
7976 };
7977 self.select_prev_state = Some(select_state);
7978 } else {
7979 self.select_prev_state = None;
7980 }
7981
7982 self.unfold_ranges(
7983 selections.iter().map(|s| s.range()).collect::<Vec<_>>(),
7984 false,
7985 true,
7986 cx,
7987 );
7988 self.change_selections(Some(Autoscroll::newest()), cx, |s| {
7989 s.select(selections);
7990 });
7991 } else if let Some(selected_text) = selected_text {
7992 self.select_prev_state = Some(SelectNextState {
7993 query: AhoCorasick::new(&[selected_text.chars().rev().collect::<String>()])?,
7994 wordwise: false,
7995 done: false,
7996 });
7997 self.select_previous(action, cx)?;
7998 }
7999 }
8000 Ok(())
8001 }
8002
8003 pub fn toggle_comments(&mut self, action: &ToggleComments, cx: &mut ViewContext<Self>) {
8004 let text_layout_details = &self.text_layout_details(cx);
8005 self.transact(cx, |this, cx| {
8006 let mut selections = this.selections.all::<MultiBufferPoint>(cx);
8007 let mut edits = Vec::new();
8008 let mut selection_edit_ranges = Vec::new();
8009 let mut last_toggled_row = None;
8010 let snapshot = this.buffer.read(cx).read(cx);
8011 let empty_str: Arc<str> = "".into();
8012 let mut suffixes_inserted = Vec::new();
8013
8014 fn comment_prefix_range(
8015 snapshot: &MultiBufferSnapshot,
8016 row: MultiBufferRow,
8017 comment_prefix: &str,
8018 comment_prefix_whitespace: &str,
8019 ) -> Range<Point> {
8020 let start = Point::new(row.0, snapshot.indent_size_for_line(row).len);
8021
8022 let mut line_bytes = snapshot
8023 .bytes_in_range(start..snapshot.max_point())
8024 .flatten()
8025 .copied();
8026
8027 // If this line currently begins with the line comment prefix, then record
8028 // the range containing the prefix.
8029 if line_bytes
8030 .by_ref()
8031 .take(comment_prefix.len())
8032 .eq(comment_prefix.bytes())
8033 {
8034 // Include any whitespace that matches the comment prefix.
8035 let matching_whitespace_len = line_bytes
8036 .zip(comment_prefix_whitespace.bytes())
8037 .take_while(|(a, b)| a == b)
8038 .count() as u32;
8039 let end = Point::new(
8040 start.row,
8041 start.column + comment_prefix.len() as u32 + matching_whitespace_len,
8042 );
8043 start..end
8044 } else {
8045 start..start
8046 }
8047 }
8048
8049 fn comment_suffix_range(
8050 snapshot: &MultiBufferSnapshot,
8051 row: MultiBufferRow,
8052 comment_suffix: &str,
8053 comment_suffix_has_leading_space: bool,
8054 ) -> Range<Point> {
8055 let end = Point::new(row.0, snapshot.line_len(row));
8056 let suffix_start_column = end.column.saturating_sub(comment_suffix.len() as u32);
8057
8058 let mut line_end_bytes = snapshot
8059 .bytes_in_range(Point::new(end.row, suffix_start_column.saturating_sub(1))..end)
8060 .flatten()
8061 .copied();
8062
8063 let leading_space_len = if suffix_start_column > 0
8064 && line_end_bytes.next() == Some(b' ')
8065 && comment_suffix_has_leading_space
8066 {
8067 1
8068 } else {
8069 0
8070 };
8071
8072 // If this line currently begins with the line comment prefix, then record
8073 // the range containing the prefix.
8074 if line_end_bytes.by_ref().eq(comment_suffix.bytes()) {
8075 let start = Point::new(end.row, suffix_start_column - leading_space_len);
8076 start..end
8077 } else {
8078 end..end
8079 }
8080 }
8081
8082 // TODO: Handle selections that cross excerpts
8083 for selection in &mut selections {
8084 let start_column = snapshot
8085 .indent_size_for_line(MultiBufferRow(selection.start.row))
8086 .len;
8087 let language = if let Some(language) =
8088 snapshot.language_scope_at(Point::new(selection.start.row, start_column))
8089 {
8090 language
8091 } else {
8092 continue;
8093 };
8094
8095 selection_edit_ranges.clear();
8096
8097 // If multiple selections contain a given row, avoid processing that
8098 // row more than once.
8099 let mut start_row = MultiBufferRow(selection.start.row);
8100 if last_toggled_row == Some(start_row) {
8101 start_row = start_row.next_row();
8102 }
8103 let end_row =
8104 if selection.end.row > selection.start.row && selection.end.column == 0 {
8105 MultiBufferRow(selection.end.row - 1)
8106 } else {
8107 MultiBufferRow(selection.end.row)
8108 };
8109 last_toggled_row = Some(end_row);
8110
8111 if start_row > end_row {
8112 continue;
8113 }
8114
8115 // If the language has line comments, toggle those.
8116 let full_comment_prefixes = language.line_comment_prefixes();
8117 if !full_comment_prefixes.is_empty() {
8118 let first_prefix = full_comment_prefixes
8119 .first()
8120 .expect("prefixes is non-empty");
8121 let prefix_trimmed_lengths = full_comment_prefixes
8122 .iter()
8123 .map(|p| p.trim_end_matches(' ').len())
8124 .collect::<SmallVec<[usize; 4]>>();
8125
8126 let mut all_selection_lines_are_comments = true;
8127
8128 for row in start_row.0..=end_row.0 {
8129 let row = MultiBufferRow(row);
8130 if start_row < end_row && snapshot.is_line_blank(row) {
8131 continue;
8132 }
8133
8134 let prefix_range = full_comment_prefixes
8135 .iter()
8136 .zip(prefix_trimmed_lengths.iter().copied())
8137 .map(|(prefix, trimmed_prefix_len)| {
8138 comment_prefix_range(
8139 snapshot.deref(),
8140 row,
8141 &prefix[..trimmed_prefix_len],
8142 &prefix[trimmed_prefix_len..],
8143 )
8144 })
8145 .max_by_key(|range| range.end.column - range.start.column)
8146 .expect("prefixes is non-empty");
8147
8148 if prefix_range.is_empty() {
8149 all_selection_lines_are_comments = false;
8150 }
8151
8152 selection_edit_ranges.push(prefix_range);
8153 }
8154
8155 if all_selection_lines_are_comments {
8156 edits.extend(
8157 selection_edit_ranges
8158 .iter()
8159 .cloned()
8160 .map(|range| (range, empty_str.clone())),
8161 );
8162 } else {
8163 let min_column = selection_edit_ranges
8164 .iter()
8165 .map(|range| range.start.column)
8166 .min()
8167 .unwrap_or(0);
8168 edits.extend(selection_edit_ranges.iter().map(|range| {
8169 let position = Point::new(range.start.row, min_column);
8170 (position..position, first_prefix.clone())
8171 }));
8172 }
8173 } else if let Some((full_comment_prefix, comment_suffix)) =
8174 language.block_comment_delimiters()
8175 {
8176 let comment_prefix = full_comment_prefix.trim_end_matches(' ');
8177 let comment_prefix_whitespace = &full_comment_prefix[comment_prefix.len()..];
8178 let prefix_range = comment_prefix_range(
8179 snapshot.deref(),
8180 start_row,
8181 comment_prefix,
8182 comment_prefix_whitespace,
8183 );
8184 let suffix_range = comment_suffix_range(
8185 snapshot.deref(),
8186 end_row,
8187 comment_suffix.trim_start_matches(' '),
8188 comment_suffix.starts_with(' '),
8189 );
8190
8191 if prefix_range.is_empty() || suffix_range.is_empty() {
8192 edits.push((
8193 prefix_range.start..prefix_range.start,
8194 full_comment_prefix.clone(),
8195 ));
8196 edits.push((suffix_range.end..suffix_range.end, comment_suffix.clone()));
8197 suffixes_inserted.push((end_row, comment_suffix.len()));
8198 } else {
8199 edits.push((prefix_range, empty_str.clone()));
8200 edits.push((suffix_range, empty_str.clone()));
8201 }
8202 } else {
8203 continue;
8204 }
8205 }
8206
8207 drop(snapshot);
8208 this.buffer.update(cx, |buffer, cx| {
8209 buffer.edit(edits, None, cx);
8210 });
8211
8212 // Adjust selections so that they end before any comment suffixes that
8213 // were inserted.
8214 let mut suffixes_inserted = suffixes_inserted.into_iter().peekable();
8215 let mut selections = this.selections.all::<Point>(cx);
8216 let snapshot = this.buffer.read(cx).read(cx);
8217 for selection in &mut selections {
8218 while let Some((row, suffix_len)) = suffixes_inserted.peek().copied() {
8219 match row.cmp(&MultiBufferRow(selection.end.row)) {
8220 Ordering::Less => {
8221 suffixes_inserted.next();
8222 continue;
8223 }
8224 Ordering::Greater => break,
8225 Ordering::Equal => {
8226 if selection.end.column == snapshot.line_len(row) {
8227 if selection.is_empty() {
8228 selection.start.column -= suffix_len as u32;
8229 }
8230 selection.end.column -= suffix_len as u32;
8231 }
8232 break;
8233 }
8234 }
8235 }
8236 }
8237
8238 drop(snapshot);
8239 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
8240
8241 let selections = this.selections.all::<Point>(cx);
8242 let selections_on_single_row = selections.windows(2).all(|selections| {
8243 selections[0].start.row == selections[1].start.row
8244 && selections[0].end.row == selections[1].end.row
8245 && selections[0].start.row == selections[0].end.row
8246 });
8247 let selections_selecting = selections
8248 .iter()
8249 .any(|selection| selection.start != selection.end);
8250 let advance_downwards = action.advance_downwards
8251 && selections_on_single_row
8252 && !selections_selecting
8253 && !matches!(this.mode, EditorMode::SingleLine { .. });
8254
8255 if advance_downwards {
8256 let snapshot = this.buffer.read(cx).snapshot(cx);
8257
8258 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
8259 s.move_cursors_with(|display_snapshot, display_point, _| {
8260 let mut point = display_point.to_point(display_snapshot);
8261 point.row += 1;
8262 point = snapshot.clip_point(point, Bias::Left);
8263 let display_point = point.to_display_point(display_snapshot);
8264 let goal = SelectionGoal::HorizontalPosition(
8265 display_snapshot
8266 .x_for_display_point(display_point, &text_layout_details)
8267 .into(),
8268 );
8269 (display_point, goal)
8270 })
8271 });
8272 }
8273 });
8274 }
8275
8276 pub fn select_enclosing_symbol(
8277 &mut self,
8278 _: &SelectEnclosingSymbol,
8279 cx: &mut ViewContext<Self>,
8280 ) {
8281 let buffer = self.buffer.read(cx).snapshot(cx);
8282 let old_selections = self.selections.all::<usize>(cx).into_boxed_slice();
8283
8284 fn update_selection(
8285 selection: &Selection<usize>,
8286 buffer_snap: &MultiBufferSnapshot,
8287 ) -> Option<Selection<usize>> {
8288 let cursor = selection.head();
8289 let (_buffer_id, symbols) = buffer_snap.symbols_containing(cursor, None)?;
8290 for symbol in symbols.iter().rev() {
8291 let start = symbol.range.start.to_offset(&buffer_snap);
8292 let end = symbol.range.end.to_offset(&buffer_snap);
8293 let new_range = start..end;
8294 if start < selection.start || end > selection.end {
8295 return Some(Selection {
8296 id: selection.id,
8297 start: new_range.start,
8298 end: new_range.end,
8299 goal: SelectionGoal::None,
8300 reversed: selection.reversed,
8301 });
8302 }
8303 }
8304 None
8305 }
8306
8307 let mut selected_larger_symbol = false;
8308 let new_selections = old_selections
8309 .iter()
8310 .map(|selection| match update_selection(selection, &buffer) {
8311 Some(new_selection) => {
8312 if new_selection.range() != selection.range() {
8313 selected_larger_symbol = true;
8314 }
8315 new_selection
8316 }
8317 None => selection.clone(),
8318 })
8319 .collect::<Vec<_>>();
8320
8321 if selected_larger_symbol {
8322 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8323 s.select(new_selections);
8324 });
8325 }
8326 }
8327
8328 pub fn select_larger_syntax_node(
8329 &mut self,
8330 _: &SelectLargerSyntaxNode,
8331 cx: &mut ViewContext<Self>,
8332 ) {
8333 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
8334 let buffer = self.buffer.read(cx).snapshot(cx);
8335 let old_selections = self.selections.all::<usize>(cx).into_boxed_slice();
8336
8337 let mut stack = mem::take(&mut self.select_larger_syntax_node_stack);
8338 let mut selected_larger_node = false;
8339 let new_selections = old_selections
8340 .iter()
8341 .map(|selection| {
8342 let old_range = selection.start..selection.end;
8343 let mut new_range = old_range.clone();
8344 while let Some(containing_range) =
8345 buffer.range_for_syntax_ancestor(new_range.clone())
8346 {
8347 new_range = containing_range;
8348 if !display_map.intersects_fold(new_range.start)
8349 && !display_map.intersects_fold(new_range.end)
8350 {
8351 break;
8352 }
8353 }
8354
8355 selected_larger_node |= new_range != old_range;
8356 Selection {
8357 id: selection.id,
8358 start: new_range.start,
8359 end: new_range.end,
8360 goal: SelectionGoal::None,
8361 reversed: selection.reversed,
8362 }
8363 })
8364 .collect::<Vec<_>>();
8365
8366 if selected_larger_node {
8367 stack.push(old_selections);
8368 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8369 s.select(new_selections);
8370 });
8371 }
8372 self.select_larger_syntax_node_stack = stack;
8373 }
8374
8375 pub fn select_smaller_syntax_node(
8376 &mut self,
8377 _: &SelectSmallerSyntaxNode,
8378 cx: &mut ViewContext<Self>,
8379 ) {
8380 let mut stack = mem::take(&mut self.select_larger_syntax_node_stack);
8381 if let Some(selections) = stack.pop() {
8382 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8383 s.select(selections.to_vec());
8384 });
8385 }
8386 self.select_larger_syntax_node_stack = stack;
8387 }
8388
8389 fn refresh_runnables(&mut self, cx: &mut ViewContext<Self>) -> Task<()> {
8390 if !EditorSettings::get_global(cx).gutter.runnables {
8391 self.clear_tasks();
8392 return Task::ready(());
8393 }
8394 let project = self.project.clone();
8395 cx.spawn(|this, mut cx| async move {
8396 let Ok(display_snapshot) = this.update(&mut cx, |this, cx| {
8397 this.display_map.update(cx, |map, cx| map.snapshot(cx))
8398 }) else {
8399 return;
8400 };
8401
8402 let Some(project) = project else {
8403 return;
8404 };
8405
8406 let hide_runnables = project
8407 .update(&mut cx, |project, cx| {
8408 // Do not display any test indicators in non-dev server remote projects.
8409 project.is_remote() && project.ssh_connection_string(cx).is_none()
8410 })
8411 .unwrap_or(true);
8412 if hide_runnables {
8413 return;
8414 }
8415 let new_rows =
8416 cx.background_executor()
8417 .spawn({
8418 let snapshot = display_snapshot.clone();
8419 async move {
8420 Self::fetch_runnable_ranges(&snapshot, Anchor::min()..Anchor::max())
8421 }
8422 })
8423 .await;
8424 let rows = Self::runnable_rows(project, display_snapshot, new_rows, cx.clone());
8425
8426 this.update(&mut cx, |this, _| {
8427 this.clear_tasks();
8428 for (key, value) in rows {
8429 this.insert_tasks(key, value);
8430 }
8431 })
8432 .ok();
8433 })
8434 }
8435 fn fetch_runnable_ranges(
8436 snapshot: &DisplaySnapshot,
8437 range: Range<Anchor>,
8438 ) -> Vec<language::RunnableRange> {
8439 snapshot.buffer_snapshot.runnable_ranges(range).collect()
8440 }
8441
8442 fn runnable_rows(
8443 project: Model<Project>,
8444 snapshot: DisplaySnapshot,
8445 runnable_ranges: Vec<RunnableRange>,
8446 mut cx: AsyncWindowContext,
8447 ) -> Vec<((BufferId, u32), RunnableTasks)> {
8448 runnable_ranges
8449 .into_iter()
8450 .filter_map(|mut runnable| {
8451 let tasks = cx
8452 .update(|cx| Self::templates_with_tags(&project, &mut runnable.runnable, cx))
8453 .ok()?;
8454 if tasks.is_empty() {
8455 return None;
8456 }
8457
8458 let point = runnable.run_range.start.to_point(&snapshot.buffer_snapshot);
8459
8460 let row = snapshot
8461 .buffer_snapshot
8462 .buffer_line_for_row(MultiBufferRow(point.row))?
8463 .1
8464 .start
8465 .row;
8466
8467 let context_range =
8468 BufferOffset(runnable.full_range.start)..BufferOffset(runnable.full_range.end);
8469 Some((
8470 (runnable.buffer_id, row),
8471 RunnableTasks {
8472 templates: tasks,
8473 offset: MultiBufferOffset(runnable.run_range.start),
8474 context_range,
8475 column: point.column,
8476 extra_variables: runnable.extra_captures,
8477 },
8478 ))
8479 })
8480 .collect()
8481 }
8482
8483 fn templates_with_tags(
8484 project: &Model<Project>,
8485 runnable: &mut Runnable,
8486 cx: &WindowContext<'_>,
8487 ) -> Vec<(TaskSourceKind, TaskTemplate)> {
8488 let (inventory, worktree_id, file) = project.read_with(cx, |project, cx| {
8489 let (worktree_id, file) = project
8490 .buffer_for_id(runnable.buffer)
8491 .and_then(|buffer| buffer.read(cx).file())
8492 .map(|file| (WorktreeId::from_usize(file.worktree_id()), file.clone()))
8493 .unzip();
8494
8495 (project.task_inventory().clone(), worktree_id, file)
8496 });
8497
8498 let inventory = inventory.read(cx);
8499 let tags = mem::take(&mut runnable.tags);
8500 let mut tags: Vec<_> = tags
8501 .into_iter()
8502 .flat_map(|tag| {
8503 let tag = tag.0.clone();
8504 inventory
8505 .list_tasks(
8506 file.clone(),
8507 Some(runnable.language.clone()),
8508 worktree_id,
8509 cx,
8510 )
8511 .into_iter()
8512 .filter(move |(_, template)| {
8513 template.tags.iter().any(|source_tag| source_tag == &tag)
8514 })
8515 })
8516 .sorted_by_key(|(kind, _)| kind.to_owned())
8517 .collect();
8518 if let Some((leading_tag_source, _)) = tags.first() {
8519 // Strongest source wins; if we have worktree tag binding, prefer that to
8520 // global and language bindings;
8521 // if we have a global binding, prefer that to language binding.
8522 let first_mismatch = tags
8523 .iter()
8524 .position(|(tag_source, _)| tag_source != leading_tag_source);
8525 if let Some(index) = first_mismatch {
8526 tags.truncate(index);
8527 }
8528 }
8529
8530 tags
8531 }
8532
8533 pub fn move_to_enclosing_bracket(
8534 &mut self,
8535 _: &MoveToEnclosingBracket,
8536 cx: &mut ViewContext<Self>,
8537 ) {
8538 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8539 s.move_offsets_with(|snapshot, selection| {
8540 let Some(enclosing_bracket_ranges) =
8541 snapshot.enclosing_bracket_ranges(selection.start..selection.end)
8542 else {
8543 return;
8544 };
8545
8546 let mut best_length = usize::MAX;
8547 let mut best_inside = false;
8548 let mut best_in_bracket_range = false;
8549 let mut best_destination = None;
8550 for (open, close) in enclosing_bracket_ranges {
8551 let close = close.to_inclusive();
8552 let length = close.end() - open.start;
8553 let inside = selection.start >= open.end && selection.end <= *close.start();
8554 let in_bracket_range = open.to_inclusive().contains(&selection.head())
8555 || close.contains(&selection.head());
8556
8557 // If best is next to a bracket and current isn't, skip
8558 if !in_bracket_range && best_in_bracket_range {
8559 continue;
8560 }
8561
8562 // Prefer smaller lengths unless best is inside and current isn't
8563 if length > best_length && (best_inside || !inside) {
8564 continue;
8565 }
8566
8567 best_length = length;
8568 best_inside = inside;
8569 best_in_bracket_range = in_bracket_range;
8570 best_destination = Some(
8571 if close.contains(&selection.start) && close.contains(&selection.end) {
8572 if inside {
8573 open.end
8574 } else {
8575 open.start
8576 }
8577 } else {
8578 if inside {
8579 *close.start()
8580 } else {
8581 *close.end()
8582 }
8583 },
8584 );
8585 }
8586
8587 if let Some(destination) = best_destination {
8588 selection.collapse_to(destination, SelectionGoal::None);
8589 }
8590 })
8591 });
8592 }
8593
8594 pub fn undo_selection(&mut self, _: &UndoSelection, cx: &mut ViewContext<Self>) {
8595 self.end_selection(cx);
8596 self.selection_history.mode = SelectionHistoryMode::Undoing;
8597 if let Some(entry) = self.selection_history.undo_stack.pop_back() {
8598 self.change_selections(None, cx, |s| s.select_anchors(entry.selections.to_vec()));
8599 self.select_next_state = entry.select_next_state;
8600 self.select_prev_state = entry.select_prev_state;
8601 self.add_selections_state = entry.add_selections_state;
8602 self.request_autoscroll(Autoscroll::newest(), cx);
8603 }
8604 self.selection_history.mode = SelectionHistoryMode::Normal;
8605 }
8606
8607 pub fn redo_selection(&mut self, _: &RedoSelection, cx: &mut ViewContext<Self>) {
8608 self.end_selection(cx);
8609 self.selection_history.mode = SelectionHistoryMode::Redoing;
8610 if let Some(entry) = self.selection_history.redo_stack.pop_back() {
8611 self.change_selections(None, cx, |s| s.select_anchors(entry.selections.to_vec()));
8612 self.select_next_state = entry.select_next_state;
8613 self.select_prev_state = entry.select_prev_state;
8614 self.add_selections_state = entry.add_selections_state;
8615 self.request_autoscroll(Autoscroll::newest(), cx);
8616 }
8617 self.selection_history.mode = SelectionHistoryMode::Normal;
8618 }
8619
8620 pub fn expand_excerpts(&mut self, action: &ExpandExcerpts, cx: &mut ViewContext<Self>) {
8621 self.expand_excerpts_for_direction(action.lines, ExpandExcerptDirection::UpAndDown, cx)
8622 }
8623
8624 pub fn expand_excerpts_down(
8625 &mut self,
8626 action: &ExpandExcerptsDown,
8627 cx: &mut ViewContext<Self>,
8628 ) {
8629 self.expand_excerpts_for_direction(action.lines, ExpandExcerptDirection::Down, cx)
8630 }
8631
8632 pub fn expand_excerpts_up(&mut self, action: &ExpandExcerptsUp, cx: &mut ViewContext<Self>) {
8633 self.expand_excerpts_for_direction(action.lines, ExpandExcerptDirection::Up, cx)
8634 }
8635
8636 pub fn expand_excerpts_for_direction(
8637 &mut self,
8638 lines: u32,
8639 direction: ExpandExcerptDirection,
8640 cx: &mut ViewContext<Self>,
8641 ) {
8642 let selections = self.selections.disjoint_anchors();
8643
8644 let lines = if lines == 0 {
8645 EditorSettings::get_global(cx).expand_excerpt_lines
8646 } else {
8647 lines
8648 };
8649
8650 self.buffer.update(cx, |buffer, cx| {
8651 buffer.expand_excerpts(
8652 selections
8653 .into_iter()
8654 .map(|selection| selection.head().excerpt_id)
8655 .dedup(),
8656 lines,
8657 direction,
8658 cx,
8659 )
8660 })
8661 }
8662
8663 pub fn expand_excerpt(
8664 &mut self,
8665 excerpt: ExcerptId,
8666 direction: ExpandExcerptDirection,
8667 cx: &mut ViewContext<Self>,
8668 ) {
8669 let lines = EditorSettings::get_global(cx).expand_excerpt_lines;
8670 self.buffer.update(cx, |buffer, cx| {
8671 buffer.expand_excerpts([excerpt], lines, direction, cx)
8672 })
8673 }
8674
8675 fn go_to_diagnostic(&mut self, _: &GoToDiagnostic, cx: &mut ViewContext<Self>) {
8676 self.go_to_diagnostic_impl(Direction::Next, cx)
8677 }
8678
8679 fn go_to_prev_diagnostic(&mut self, _: &GoToPrevDiagnostic, cx: &mut ViewContext<Self>) {
8680 self.go_to_diagnostic_impl(Direction::Prev, cx)
8681 }
8682
8683 pub fn go_to_diagnostic_impl(&mut self, direction: Direction, cx: &mut ViewContext<Self>) {
8684 let buffer = self.buffer.read(cx).snapshot(cx);
8685 let selection = self.selections.newest::<usize>(cx);
8686
8687 // If there is an active Diagnostic Popover jump to its diagnostic instead.
8688 if direction == Direction::Next {
8689 if let Some(popover) = self.hover_state.diagnostic_popover.as_ref() {
8690 let (group_id, jump_to) = popover.activation_info();
8691 if self.activate_diagnostics(group_id, cx) {
8692 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8693 let mut new_selection = s.newest_anchor().clone();
8694 new_selection.collapse_to(jump_to, SelectionGoal::None);
8695 s.select_anchors(vec![new_selection.clone()]);
8696 });
8697 }
8698 return;
8699 }
8700 }
8701
8702 let mut active_primary_range = self.active_diagnostics.as_ref().map(|active_diagnostics| {
8703 active_diagnostics
8704 .primary_range
8705 .to_offset(&buffer)
8706 .to_inclusive()
8707 });
8708 let mut search_start = if let Some(active_primary_range) = active_primary_range.as_ref() {
8709 if active_primary_range.contains(&selection.head()) {
8710 *active_primary_range.start()
8711 } else {
8712 selection.head()
8713 }
8714 } else {
8715 selection.head()
8716 };
8717 let snapshot = self.snapshot(cx);
8718 loop {
8719 let diagnostics = if direction == Direction::Prev {
8720 buffer.diagnostics_in_range::<_, usize>(0..search_start, true)
8721 } else {
8722 buffer.diagnostics_in_range::<_, usize>(search_start..buffer.len(), false)
8723 }
8724 .filter(|diagnostic| !snapshot.intersects_fold(diagnostic.range.start));
8725 let group = diagnostics
8726 // relies on diagnostics_in_range to return diagnostics with the same starting range to
8727 // be sorted in a stable way
8728 // skip until we are at current active diagnostic, if it exists
8729 .skip_while(|entry| {
8730 (match direction {
8731 Direction::Prev => entry.range.start >= search_start,
8732 Direction::Next => entry.range.start <= search_start,
8733 }) && self
8734 .active_diagnostics
8735 .as_ref()
8736 .is_some_and(|a| a.group_id != entry.diagnostic.group_id)
8737 })
8738 .find_map(|entry| {
8739 if entry.diagnostic.is_primary
8740 && entry.diagnostic.severity <= DiagnosticSeverity::WARNING
8741 && !entry.range.is_empty()
8742 // if we match with the active diagnostic, skip it
8743 && Some(entry.diagnostic.group_id)
8744 != self.active_diagnostics.as_ref().map(|d| d.group_id)
8745 {
8746 Some((entry.range, entry.diagnostic.group_id))
8747 } else {
8748 None
8749 }
8750 });
8751
8752 if let Some((primary_range, group_id)) = group {
8753 if self.activate_diagnostics(group_id, cx) {
8754 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8755 s.select(vec![Selection {
8756 id: selection.id,
8757 start: primary_range.start,
8758 end: primary_range.start,
8759 reversed: false,
8760 goal: SelectionGoal::None,
8761 }]);
8762 });
8763 }
8764 break;
8765 } else {
8766 // Cycle around to the start of the buffer, potentially moving back to the start of
8767 // the currently active diagnostic.
8768 active_primary_range.take();
8769 if direction == Direction::Prev {
8770 if search_start == buffer.len() {
8771 break;
8772 } else {
8773 search_start = buffer.len();
8774 }
8775 } else if search_start == 0 {
8776 break;
8777 } else {
8778 search_start = 0;
8779 }
8780 }
8781 }
8782 }
8783
8784 fn go_to_hunk(&mut self, _: &GoToHunk, cx: &mut ViewContext<Self>) {
8785 let snapshot = self
8786 .display_map
8787 .update(cx, |display_map, cx| display_map.snapshot(cx));
8788 let selection = self.selections.newest::<Point>(cx);
8789
8790 if !self.seek_in_direction(
8791 &snapshot,
8792 selection.head(),
8793 false,
8794 snapshot.buffer_snapshot.git_diff_hunks_in_range(
8795 MultiBufferRow(selection.head().row + 1)..MultiBufferRow::MAX,
8796 ),
8797 cx,
8798 ) {
8799 let wrapped_point = Point::zero();
8800 self.seek_in_direction(
8801 &snapshot,
8802 wrapped_point,
8803 true,
8804 snapshot.buffer_snapshot.git_diff_hunks_in_range(
8805 MultiBufferRow(wrapped_point.row + 1)..MultiBufferRow::MAX,
8806 ),
8807 cx,
8808 );
8809 }
8810 }
8811
8812 fn go_to_prev_hunk(&mut self, _: &GoToPrevHunk, cx: &mut ViewContext<Self>) {
8813 let snapshot = self
8814 .display_map
8815 .update(cx, |display_map, cx| display_map.snapshot(cx));
8816 let selection = self.selections.newest::<Point>(cx);
8817
8818 if !self.seek_in_direction(
8819 &snapshot,
8820 selection.head(),
8821 false,
8822 snapshot.buffer_snapshot.git_diff_hunks_in_range_rev(
8823 MultiBufferRow(0)..MultiBufferRow(selection.head().row),
8824 ),
8825 cx,
8826 ) {
8827 let wrapped_point = snapshot.buffer_snapshot.max_point();
8828 self.seek_in_direction(
8829 &snapshot,
8830 wrapped_point,
8831 true,
8832 snapshot.buffer_snapshot.git_diff_hunks_in_range_rev(
8833 MultiBufferRow(0)..MultiBufferRow(wrapped_point.row),
8834 ),
8835 cx,
8836 );
8837 }
8838 }
8839
8840 fn seek_in_direction(
8841 &mut self,
8842 snapshot: &DisplaySnapshot,
8843 initial_point: Point,
8844 is_wrapped: bool,
8845 hunks: impl Iterator<Item = DiffHunk<MultiBufferRow>>,
8846 cx: &mut ViewContext<Editor>,
8847 ) -> bool {
8848 let display_point = initial_point.to_display_point(snapshot);
8849 let mut hunks = hunks
8850 .map(|hunk| diff_hunk_to_display(&hunk, &snapshot))
8851 .filter(|hunk| is_wrapped || !hunk.contains_display_row(display_point.row()))
8852 .dedup();
8853
8854 if let Some(hunk) = hunks.next() {
8855 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8856 let row = hunk.start_display_row();
8857 let point = DisplayPoint::new(row, 0);
8858 s.select_display_ranges([point..point]);
8859 });
8860
8861 true
8862 } else {
8863 false
8864 }
8865 }
8866
8867 pub fn go_to_definition(
8868 &mut self,
8869 _: &GoToDefinition,
8870 cx: &mut ViewContext<Self>,
8871 ) -> Task<Result<bool>> {
8872 self.go_to_definition_of_kind(GotoDefinitionKind::Symbol, false, cx)
8873 }
8874
8875 pub fn go_to_implementation(
8876 &mut self,
8877 _: &GoToImplementation,
8878 cx: &mut ViewContext<Self>,
8879 ) -> Task<Result<bool>> {
8880 self.go_to_definition_of_kind(GotoDefinitionKind::Implementation, false, cx)
8881 }
8882
8883 pub fn go_to_implementation_split(
8884 &mut self,
8885 _: &GoToImplementationSplit,
8886 cx: &mut ViewContext<Self>,
8887 ) -> Task<Result<bool>> {
8888 self.go_to_definition_of_kind(GotoDefinitionKind::Implementation, true, cx)
8889 }
8890
8891 pub fn go_to_type_definition(
8892 &mut self,
8893 _: &GoToTypeDefinition,
8894 cx: &mut ViewContext<Self>,
8895 ) -> Task<Result<bool>> {
8896 self.go_to_definition_of_kind(GotoDefinitionKind::Type, false, cx)
8897 }
8898
8899 pub fn go_to_definition_split(
8900 &mut self,
8901 _: &GoToDefinitionSplit,
8902 cx: &mut ViewContext<Self>,
8903 ) -> Task<Result<bool>> {
8904 self.go_to_definition_of_kind(GotoDefinitionKind::Symbol, true, cx)
8905 }
8906
8907 pub fn go_to_type_definition_split(
8908 &mut self,
8909 _: &GoToTypeDefinitionSplit,
8910 cx: &mut ViewContext<Self>,
8911 ) -> Task<Result<bool>> {
8912 self.go_to_definition_of_kind(GotoDefinitionKind::Type, true, cx)
8913 }
8914
8915 fn go_to_definition_of_kind(
8916 &mut self,
8917 kind: GotoDefinitionKind,
8918 split: bool,
8919 cx: &mut ViewContext<Self>,
8920 ) -> Task<Result<bool>> {
8921 let Some(workspace) = self.workspace() else {
8922 return Task::ready(Ok(false));
8923 };
8924 let buffer = self.buffer.read(cx);
8925 let head = self.selections.newest::<usize>(cx).head();
8926 let (buffer, head) = if let Some(text_anchor) = buffer.text_anchor_for_position(head, cx) {
8927 text_anchor
8928 } else {
8929 return Task::ready(Ok(false));
8930 };
8931
8932 let project = workspace.read(cx).project().clone();
8933 let definitions = project.update(cx, |project, cx| match kind {
8934 GotoDefinitionKind::Symbol => project.definition(&buffer, head, cx),
8935 GotoDefinitionKind::Type => project.type_definition(&buffer, head, cx),
8936 GotoDefinitionKind::Implementation => project.implementation(&buffer, head, cx),
8937 });
8938
8939 cx.spawn(|editor, mut cx| async move {
8940 let definitions = definitions.await?;
8941 let navigated = editor
8942 .update(&mut cx, |editor, cx| {
8943 editor.navigate_to_hover_links(
8944 Some(kind),
8945 definitions
8946 .into_iter()
8947 .filter(|location| {
8948 hover_links::exclude_link_to_position(&buffer, &head, location, cx)
8949 })
8950 .map(HoverLink::Text)
8951 .collect::<Vec<_>>(),
8952 split,
8953 cx,
8954 )
8955 })?
8956 .await?;
8957 anyhow::Ok(navigated)
8958 })
8959 }
8960
8961 pub fn open_url(&mut self, _: &OpenUrl, cx: &mut ViewContext<Self>) {
8962 let position = self.selections.newest_anchor().head();
8963 let Some((buffer, buffer_position)) =
8964 self.buffer.read(cx).text_anchor_for_position(position, cx)
8965 else {
8966 return;
8967 };
8968
8969 cx.spawn(|editor, mut cx| async move {
8970 if let Some((_, url)) = find_url(&buffer, buffer_position, cx.clone()) {
8971 editor.update(&mut cx, |_, cx| {
8972 cx.open_url(&url);
8973 })
8974 } else {
8975 Ok(())
8976 }
8977 })
8978 .detach();
8979 }
8980
8981 pub(crate) fn navigate_to_hover_links(
8982 &mut self,
8983 kind: Option<GotoDefinitionKind>,
8984 mut definitions: Vec<HoverLink>,
8985 split: bool,
8986 cx: &mut ViewContext<Editor>,
8987 ) -> Task<Result<bool>> {
8988 // If there is one definition, just open it directly
8989 if definitions.len() == 1 {
8990 let definition = definitions.pop().unwrap();
8991 let target_task = match definition {
8992 HoverLink::Text(link) => Task::Ready(Some(Ok(Some(link.target)))),
8993 HoverLink::InlayHint(lsp_location, server_id) => {
8994 self.compute_target_location(lsp_location, server_id, cx)
8995 }
8996 HoverLink::Url(url) => {
8997 cx.open_url(&url);
8998 Task::ready(Ok(None))
8999 }
9000 };
9001 cx.spawn(|editor, mut cx| async move {
9002 let target = target_task.await.context("target resolution task")?;
9003 if let Some(target) = target {
9004 editor.update(&mut cx, |editor, cx| {
9005 let Some(workspace) = editor.workspace() else {
9006 return false;
9007 };
9008 let pane = workspace.read(cx).active_pane().clone();
9009
9010 let range = target.range.to_offset(target.buffer.read(cx));
9011 let range = editor.range_for_match(&range);
9012
9013 /// If select range has more than one line, we
9014 /// just point the cursor to range.start.
9015 fn check_multiline_range(
9016 buffer: &Buffer,
9017 range: Range<usize>,
9018 ) -> Range<usize> {
9019 if buffer.offset_to_point(range.start).row
9020 == buffer.offset_to_point(range.end).row
9021 {
9022 range
9023 } else {
9024 range.start..range.start
9025 }
9026 }
9027
9028 if Some(&target.buffer) == editor.buffer.read(cx).as_singleton().as_ref() {
9029 let buffer = target.buffer.read(cx);
9030 let range = check_multiline_range(buffer, range);
9031 editor.change_selections(Some(Autoscroll::focused()), cx, |s| {
9032 s.select_ranges([range]);
9033 });
9034 } else {
9035 cx.window_context().defer(move |cx| {
9036 let target_editor: View<Self> =
9037 workspace.update(cx, |workspace, cx| {
9038 let pane = if split {
9039 workspace.adjacent_pane(cx)
9040 } else {
9041 workspace.active_pane().clone()
9042 };
9043
9044 workspace.open_project_item(pane, target.buffer.clone(), cx)
9045 });
9046 target_editor.update(cx, |target_editor, cx| {
9047 // When selecting a definition in a different buffer, disable the nav history
9048 // to avoid creating a history entry at the previous cursor location.
9049 pane.update(cx, |pane, _| pane.disable_history());
9050 let buffer = target.buffer.read(cx);
9051 let range = check_multiline_range(buffer, range);
9052 target_editor.change_selections(
9053 Some(Autoscroll::focused()),
9054 cx,
9055 |s| {
9056 s.select_ranges([range]);
9057 },
9058 );
9059 pane.update(cx, |pane, _| pane.enable_history());
9060 });
9061 });
9062 }
9063 true
9064 })
9065 } else {
9066 Ok(false)
9067 }
9068 })
9069 } else if !definitions.is_empty() {
9070 let replica_id = self.replica_id(cx);
9071 cx.spawn(|editor, mut cx| async move {
9072 let (title, location_tasks, workspace) = editor
9073 .update(&mut cx, |editor, cx| {
9074 let tab_kind = match kind {
9075 Some(GotoDefinitionKind::Implementation) => "Implementations",
9076 _ => "Definitions",
9077 };
9078 let title = definitions
9079 .iter()
9080 .find_map(|definition| match definition {
9081 HoverLink::Text(link) => link.origin.as_ref().map(|origin| {
9082 let buffer = origin.buffer.read(cx);
9083 format!(
9084 "{} for {}",
9085 tab_kind,
9086 buffer
9087 .text_for_range(origin.range.clone())
9088 .collect::<String>()
9089 )
9090 }),
9091 HoverLink::InlayHint(_, _) => None,
9092 HoverLink::Url(_) => None,
9093 })
9094 .unwrap_or(tab_kind.to_string());
9095 let location_tasks = definitions
9096 .into_iter()
9097 .map(|definition| match definition {
9098 HoverLink::Text(link) => Task::Ready(Some(Ok(Some(link.target)))),
9099 HoverLink::InlayHint(lsp_location, server_id) => {
9100 editor.compute_target_location(lsp_location, server_id, cx)
9101 }
9102 HoverLink::Url(_) => Task::ready(Ok(None)),
9103 })
9104 .collect::<Vec<_>>();
9105 (title, location_tasks, editor.workspace().clone())
9106 })
9107 .context("location tasks preparation")?;
9108
9109 let locations = futures::future::join_all(location_tasks)
9110 .await
9111 .into_iter()
9112 .filter_map(|location| location.transpose())
9113 .collect::<Result<_>>()
9114 .context("location tasks")?;
9115
9116 let Some(workspace) = workspace else {
9117 return Ok(false);
9118 };
9119 let opened = workspace
9120 .update(&mut cx, |workspace, cx| {
9121 Self::open_locations_in_multibuffer(
9122 workspace, locations, replica_id, title, split, cx,
9123 )
9124 })
9125 .ok();
9126
9127 anyhow::Ok(opened.is_some())
9128 })
9129 } else {
9130 Task::ready(Ok(false))
9131 }
9132 }
9133
9134 fn compute_target_location(
9135 &self,
9136 lsp_location: lsp::Location,
9137 server_id: LanguageServerId,
9138 cx: &mut ViewContext<Editor>,
9139 ) -> Task<anyhow::Result<Option<Location>>> {
9140 let Some(project) = self.project.clone() else {
9141 return Task::Ready(Some(Ok(None)));
9142 };
9143
9144 cx.spawn(move |editor, mut cx| async move {
9145 let location_task = editor.update(&mut cx, |editor, cx| {
9146 project.update(cx, |project, cx| {
9147 let language_server_name =
9148 editor.buffer.read(cx).as_singleton().and_then(|buffer| {
9149 project
9150 .language_server_for_buffer(buffer.read(cx), server_id, cx)
9151 .map(|(lsp_adapter, _)| lsp_adapter.name.clone())
9152 });
9153 language_server_name.map(|language_server_name| {
9154 project.open_local_buffer_via_lsp(
9155 lsp_location.uri.clone(),
9156 server_id,
9157 language_server_name,
9158 cx,
9159 )
9160 })
9161 })
9162 })?;
9163 let location = match location_task {
9164 Some(task) => Some({
9165 let target_buffer_handle = task.await.context("open local buffer")?;
9166 let range = target_buffer_handle.update(&mut cx, |target_buffer, _| {
9167 let target_start = target_buffer
9168 .clip_point_utf16(point_from_lsp(lsp_location.range.start), Bias::Left);
9169 let target_end = target_buffer
9170 .clip_point_utf16(point_from_lsp(lsp_location.range.end), Bias::Left);
9171 target_buffer.anchor_after(target_start)
9172 ..target_buffer.anchor_before(target_end)
9173 })?;
9174 Location {
9175 buffer: target_buffer_handle,
9176 range,
9177 }
9178 }),
9179 None => None,
9180 };
9181 Ok(location)
9182 })
9183 }
9184
9185 pub fn find_all_references(
9186 &mut self,
9187 _: &FindAllReferences,
9188 cx: &mut ViewContext<Self>,
9189 ) -> Option<Task<Result<()>>> {
9190 let multi_buffer = self.buffer.read(cx);
9191 let selection = self.selections.newest::<usize>(cx);
9192 let head = selection.head();
9193
9194 let multi_buffer_snapshot = multi_buffer.snapshot(cx);
9195 let head_anchor = multi_buffer_snapshot.anchor_at(
9196 head,
9197 if head < selection.tail() {
9198 Bias::Right
9199 } else {
9200 Bias::Left
9201 },
9202 );
9203
9204 match self
9205 .find_all_references_task_sources
9206 .binary_search_by(|anchor| anchor.cmp(&head_anchor, &multi_buffer_snapshot))
9207 {
9208 Ok(_) => {
9209 log::info!(
9210 "Ignoring repeated FindAllReferences invocation with the position of already running task"
9211 );
9212 return None;
9213 }
9214 Err(i) => {
9215 self.find_all_references_task_sources.insert(i, head_anchor);
9216 }
9217 }
9218
9219 let (buffer, head) = multi_buffer.text_anchor_for_position(head, cx)?;
9220 let replica_id = self.replica_id(cx);
9221 let workspace = self.workspace()?;
9222 let project = workspace.read(cx).project().clone();
9223 let references = project.update(cx, |project, cx| project.references(&buffer, head, cx));
9224 Some(cx.spawn(|editor, mut cx| async move {
9225 let _cleanup = defer({
9226 let mut cx = cx.clone();
9227 move || {
9228 let _ = editor.update(&mut cx, |editor, _| {
9229 if let Ok(i) =
9230 editor
9231 .find_all_references_task_sources
9232 .binary_search_by(|anchor| {
9233 anchor.cmp(&head_anchor, &multi_buffer_snapshot)
9234 })
9235 {
9236 editor.find_all_references_task_sources.remove(i);
9237 }
9238 });
9239 }
9240 });
9241
9242 let locations = references.await?;
9243 if locations.is_empty() {
9244 return anyhow::Ok(());
9245 }
9246
9247 workspace.update(&mut cx, |workspace, cx| {
9248 let title = locations
9249 .first()
9250 .as_ref()
9251 .map(|location| {
9252 let buffer = location.buffer.read(cx);
9253 format!(
9254 "References to `{}`",
9255 buffer
9256 .text_for_range(location.range.clone())
9257 .collect::<String>()
9258 )
9259 })
9260 .unwrap();
9261 Self::open_locations_in_multibuffer(
9262 workspace, locations, replica_id, title, false, cx,
9263 );
9264 })
9265 }))
9266 }
9267
9268 /// Opens a multibuffer with the given project locations in it
9269 pub fn open_locations_in_multibuffer(
9270 workspace: &mut Workspace,
9271 mut locations: Vec<Location>,
9272 replica_id: ReplicaId,
9273 title: String,
9274 split: bool,
9275 cx: &mut ViewContext<Workspace>,
9276 ) {
9277 // If there are multiple definitions, open them in a multibuffer
9278 locations.sort_by_key(|location| location.buffer.read(cx).remote_id());
9279 let mut locations = locations.into_iter().peekable();
9280 let mut ranges_to_highlight = Vec::new();
9281 let capability = workspace.project().read(cx).capability();
9282
9283 let excerpt_buffer = cx.new_model(|cx| {
9284 let mut multibuffer = MultiBuffer::new(replica_id, capability);
9285 while let Some(location) = locations.next() {
9286 let buffer = location.buffer.read(cx);
9287 let mut ranges_for_buffer = Vec::new();
9288 let range = location.range.to_offset(buffer);
9289 ranges_for_buffer.push(range.clone());
9290
9291 while let Some(next_location) = locations.peek() {
9292 if next_location.buffer == location.buffer {
9293 ranges_for_buffer.push(next_location.range.to_offset(buffer));
9294 locations.next();
9295 } else {
9296 break;
9297 }
9298 }
9299
9300 ranges_for_buffer.sort_by_key(|range| (range.start, Reverse(range.end)));
9301 ranges_to_highlight.extend(multibuffer.push_excerpts_with_context_lines(
9302 location.buffer.clone(),
9303 ranges_for_buffer,
9304 DEFAULT_MULTIBUFFER_CONTEXT,
9305 cx,
9306 ))
9307 }
9308
9309 multibuffer.with_title(title)
9310 });
9311
9312 let editor = cx.new_view(|cx| {
9313 Editor::for_multibuffer(excerpt_buffer, Some(workspace.project().clone()), true, cx)
9314 });
9315 editor.update(cx, |editor, cx| {
9316 if let Some(first_range) = ranges_to_highlight.first() {
9317 editor.change_selections(None, cx, |selections| {
9318 selections.clear_disjoint();
9319 selections.select_anchor_ranges(std::iter::once(first_range.clone()));
9320 });
9321 }
9322 editor.highlight_background::<Self>(
9323 &ranges_to_highlight,
9324 |theme| theme.editor_highlighted_line_background,
9325 cx,
9326 );
9327 });
9328
9329 let item = Box::new(editor);
9330 let item_id = item.item_id();
9331
9332 if split {
9333 workspace.split_item(SplitDirection::Right, item.clone(), cx);
9334 } else {
9335 let destination_index = workspace.active_pane().update(cx, |pane, cx| {
9336 if PreviewTabsSettings::get_global(cx).enable_preview_from_code_navigation {
9337 pane.close_current_preview_item(cx)
9338 } else {
9339 None
9340 }
9341 });
9342 workspace.add_item_to_active_pane(item.clone(), destination_index, cx);
9343 }
9344 workspace.active_pane().update(cx, |pane, cx| {
9345 pane.set_preview_item_id(Some(item_id), cx);
9346 });
9347 }
9348
9349 pub fn rename(&mut self, _: &Rename, cx: &mut ViewContext<Self>) -> Option<Task<Result<()>>> {
9350 use language::ToOffset as _;
9351
9352 let project = self.project.clone()?;
9353 let selection = self.selections.newest_anchor().clone();
9354 let (cursor_buffer, cursor_buffer_position) = self
9355 .buffer
9356 .read(cx)
9357 .text_anchor_for_position(selection.head(), cx)?;
9358 let (tail_buffer, cursor_buffer_position_end) = self
9359 .buffer
9360 .read(cx)
9361 .text_anchor_for_position(selection.tail(), cx)?;
9362 if tail_buffer != cursor_buffer {
9363 return None;
9364 }
9365
9366 let snapshot = cursor_buffer.read(cx).snapshot();
9367 let cursor_buffer_offset = cursor_buffer_position.to_offset(&snapshot);
9368 let cursor_buffer_offset_end = cursor_buffer_position_end.to_offset(&snapshot);
9369 let prepare_rename = project.update(cx, |project, cx| {
9370 project.prepare_rename(cursor_buffer.clone(), cursor_buffer_offset, cx)
9371 });
9372 drop(snapshot);
9373
9374 Some(cx.spawn(|this, mut cx| async move {
9375 let rename_range = if let Some(range) = prepare_rename.await? {
9376 Some(range)
9377 } else {
9378 this.update(&mut cx, |this, cx| {
9379 let buffer = this.buffer.read(cx).snapshot(cx);
9380 let mut buffer_highlights = this
9381 .document_highlights_for_position(selection.head(), &buffer)
9382 .filter(|highlight| {
9383 highlight.start.excerpt_id == selection.head().excerpt_id
9384 && highlight.end.excerpt_id == selection.head().excerpt_id
9385 });
9386 buffer_highlights
9387 .next()
9388 .map(|highlight| highlight.start.text_anchor..highlight.end.text_anchor)
9389 })?
9390 };
9391 if let Some(rename_range) = rename_range {
9392 this.update(&mut cx, |this, cx| {
9393 let snapshot = cursor_buffer.read(cx).snapshot();
9394 let rename_buffer_range = rename_range.to_offset(&snapshot);
9395 let cursor_offset_in_rename_range =
9396 cursor_buffer_offset.saturating_sub(rename_buffer_range.start);
9397 let cursor_offset_in_rename_range_end =
9398 cursor_buffer_offset_end.saturating_sub(rename_buffer_range.start);
9399
9400 this.take_rename(false, cx);
9401 let buffer = this.buffer.read(cx).read(cx);
9402 let cursor_offset = selection.head().to_offset(&buffer);
9403 let rename_start = cursor_offset.saturating_sub(cursor_offset_in_rename_range);
9404 let rename_end = rename_start + rename_buffer_range.len();
9405 let range = buffer.anchor_before(rename_start)..buffer.anchor_after(rename_end);
9406 let mut old_highlight_id = None;
9407 let old_name: Arc<str> = buffer
9408 .chunks(rename_start..rename_end, true)
9409 .map(|chunk| {
9410 if old_highlight_id.is_none() {
9411 old_highlight_id = chunk.syntax_highlight_id;
9412 }
9413 chunk.text
9414 })
9415 .collect::<String>()
9416 .into();
9417
9418 drop(buffer);
9419
9420 // Position the selection in the rename editor so that it matches the current selection.
9421 this.show_local_selections = false;
9422 let rename_editor = cx.new_view(|cx| {
9423 let mut editor = Editor::single_line(cx);
9424 editor.buffer.update(cx, |buffer, cx| {
9425 buffer.edit([(0..0, old_name.clone())], None, cx)
9426 });
9427 let rename_selection_range = match cursor_offset_in_rename_range
9428 .cmp(&cursor_offset_in_rename_range_end)
9429 {
9430 Ordering::Equal => {
9431 editor.select_all(&SelectAll, cx);
9432 return editor;
9433 }
9434 Ordering::Less => {
9435 cursor_offset_in_rename_range..cursor_offset_in_rename_range_end
9436 }
9437 Ordering::Greater => {
9438 cursor_offset_in_rename_range_end..cursor_offset_in_rename_range
9439 }
9440 };
9441 if rename_selection_range.end > old_name.len() {
9442 editor.select_all(&SelectAll, cx);
9443 } else {
9444 editor.change_selections(Some(Autoscroll::fit()), cx, |s| {
9445 s.select_ranges([rename_selection_range]);
9446 });
9447 }
9448 editor
9449 });
9450
9451 let write_highlights =
9452 this.clear_background_highlights::<DocumentHighlightWrite>(cx);
9453 let read_highlights =
9454 this.clear_background_highlights::<DocumentHighlightRead>(cx);
9455 let ranges = write_highlights
9456 .iter()
9457 .flat_map(|(_, ranges)| ranges.iter())
9458 .chain(read_highlights.iter().flat_map(|(_, ranges)| ranges.iter()))
9459 .cloned()
9460 .collect();
9461
9462 this.highlight_text::<Rename>(
9463 ranges,
9464 HighlightStyle {
9465 fade_out: Some(0.6),
9466 ..Default::default()
9467 },
9468 cx,
9469 );
9470 let rename_focus_handle = rename_editor.focus_handle(cx);
9471 cx.focus(&rename_focus_handle);
9472 let block_id = this.insert_blocks(
9473 [BlockProperties {
9474 style: BlockStyle::Flex,
9475 position: range.start,
9476 height: 1,
9477 render: Box::new({
9478 let rename_editor = rename_editor.clone();
9479 move |cx: &mut BlockContext| {
9480 let mut text_style = cx.editor_style.text.clone();
9481 if let Some(highlight_style) = old_highlight_id
9482 .and_then(|h| h.style(&cx.editor_style.syntax))
9483 {
9484 text_style = text_style.highlight(highlight_style);
9485 }
9486 div()
9487 .pl(cx.anchor_x)
9488 .child(EditorElement::new(
9489 &rename_editor,
9490 EditorStyle {
9491 background: cx.theme().system().transparent,
9492 local_player: cx.editor_style.local_player,
9493 text: text_style,
9494 scrollbar_width: cx.editor_style.scrollbar_width,
9495 syntax: cx.editor_style.syntax.clone(),
9496 status: cx.editor_style.status.clone(),
9497 inlay_hints_style: HighlightStyle {
9498 color: Some(cx.theme().status().hint),
9499 font_weight: Some(FontWeight::BOLD),
9500 ..HighlightStyle::default()
9501 },
9502 suggestions_style: HighlightStyle {
9503 color: Some(cx.theme().status().predictive),
9504 ..HighlightStyle::default()
9505 },
9506 },
9507 ))
9508 .into_any_element()
9509 }
9510 }),
9511 disposition: BlockDisposition::Below,
9512 }],
9513 Some(Autoscroll::fit()),
9514 cx,
9515 )[0];
9516 this.pending_rename = Some(RenameState {
9517 range,
9518 old_name,
9519 editor: rename_editor,
9520 block_id,
9521 });
9522 })?;
9523 }
9524
9525 Ok(())
9526 }))
9527 }
9528
9529 pub fn confirm_rename(
9530 &mut self,
9531 _: &ConfirmRename,
9532 cx: &mut ViewContext<Self>,
9533 ) -> Option<Task<Result<()>>> {
9534 let rename = self.take_rename(false, cx)?;
9535 let workspace = self.workspace()?;
9536 let (start_buffer, start) = self
9537 .buffer
9538 .read(cx)
9539 .text_anchor_for_position(rename.range.start, cx)?;
9540 let (end_buffer, end) = self
9541 .buffer
9542 .read(cx)
9543 .text_anchor_for_position(rename.range.end, cx)?;
9544 if start_buffer != end_buffer {
9545 return None;
9546 }
9547
9548 let buffer = start_buffer;
9549 let range = start..end;
9550 let old_name = rename.old_name;
9551 let new_name = rename.editor.read(cx).text(cx);
9552
9553 let rename = workspace
9554 .read(cx)
9555 .project()
9556 .clone()
9557 .update(cx, |project, cx| {
9558 project.perform_rename(buffer.clone(), range.start, new_name.clone(), true, cx)
9559 });
9560 let workspace = workspace.downgrade();
9561
9562 Some(cx.spawn(|editor, mut cx| async move {
9563 let project_transaction = rename.await?;
9564 Self::open_project_transaction(
9565 &editor,
9566 workspace,
9567 project_transaction,
9568 format!("Rename: {} → {}", old_name, new_name),
9569 cx.clone(),
9570 )
9571 .await?;
9572
9573 editor.update(&mut cx, |editor, cx| {
9574 editor.refresh_document_highlights(cx);
9575 })?;
9576 Ok(())
9577 }))
9578 }
9579
9580 fn take_rename(
9581 &mut self,
9582 moving_cursor: bool,
9583 cx: &mut ViewContext<Self>,
9584 ) -> Option<RenameState> {
9585 let rename = self.pending_rename.take()?;
9586 if rename.editor.focus_handle(cx).is_focused(cx) {
9587 cx.focus(&self.focus_handle);
9588 }
9589
9590 self.remove_blocks(
9591 [rename.block_id].into_iter().collect(),
9592 Some(Autoscroll::fit()),
9593 cx,
9594 );
9595 self.clear_highlights::<Rename>(cx);
9596 self.show_local_selections = true;
9597
9598 if moving_cursor {
9599 let rename_editor = rename.editor.read(cx);
9600 let cursor_in_rename_editor = rename_editor.selections.newest::<usize>(cx).head();
9601
9602 // Update the selection to match the position of the selection inside
9603 // the rename editor.
9604 let snapshot = self.buffer.read(cx).read(cx);
9605 let rename_range = rename.range.to_offset(&snapshot);
9606 let cursor_in_editor = snapshot
9607 .clip_offset(rename_range.start + cursor_in_rename_editor, Bias::Left)
9608 .min(rename_range.end);
9609 drop(snapshot);
9610
9611 self.change_selections(None, cx, |s| {
9612 s.select_ranges(vec![cursor_in_editor..cursor_in_editor])
9613 });
9614 } else {
9615 self.refresh_document_highlights(cx);
9616 }
9617
9618 Some(rename)
9619 }
9620
9621 pub fn pending_rename(&self) -> Option<&RenameState> {
9622 self.pending_rename.as_ref()
9623 }
9624
9625 fn format(&mut self, _: &Format, cx: &mut ViewContext<Self>) -> Option<Task<Result<()>>> {
9626 let project = match &self.project {
9627 Some(project) => project.clone(),
9628 None => return None,
9629 };
9630
9631 Some(self.perform_format(project, FormatTrigger::Manual, cx))
9632 }
9633
9634 fn perform_format(
9635 &mut self,
9636 project: Model<Project>,
9637 trigger: FormatTrigger,
9638 cx: &mut ViewContext<Self>,
9639 ) -> Task<Result<()>> {
9640 let buffer = self.buffer().clone();
9641 let mut buffers = buffer.read(cx).all_buffers();
9642 if trigger == FormatTrigger::Save {
9643 buffers.retain(|buffer| buffer.read(cx).is_dirty());
9644 }
9645
9646 let mut timeout = cx.background_executor().timer(FORMAT_TIMEOUT).fuse();
9647 let format = project.update(cx, |project, cx| project.format(buffers, true, trigger, cx));
9648
9649 cx.spawn(|_, mut cx| async move {
9650 let transaction = futures::select_biased! {
9651 () = timeout => {
9652 log::warn!("timed out waiting for formatting");
9653 None
9654 }
9655 transaction = format.log_err().fuse() => transaction,
9656 };
9657
9658 buffer
9659 .update(&mut cx, |buffer, cx| {
9660 if let Some(transaction) = transaction {
9661 if !buffer.is_singleton() {
9662 buffer.push_transaction(&transaction.0, cx);
9663 }
9664 }
9665
9666 cx.notify();
9667 })
9668 .ok();
9669
9670 Ok(())
9671 })
9672 }
9673
9674 fn restart_language_server(&mut self, _: &RestartLanguageServer, cx: &mut ViewContext<Self>) {
9675 if let Some(project) = self.project.clone() {
9676 self.buffer.update(cx, |multi_buffer, cx| {
9677 project.update(cx, |project, cx| {
9678 project.restart_language_servers_for_buffers(multi_buffer.all_buffers(), cx);
9679 });
9680 })
9681 }
9682 }
9683
9684 fn cancel_language_server_work(
9685 &mut self,
9686 _: &CancelLanguageServerWork,
9687 cx: &mut ViewContext<Self>,
9688 ) {
9689 if let Some(project) = self.project.clone() {
9690 self.buffer.update(cx, |multi_buffer, cx| {
9691 project.update(cx, |project, cx| {
9692 project.cancel_language_server_work_for_buffers(multi_buffer.all_buffers(), cx);
9693 });
9694 })
9695 }
9696 }
9697
9698 fn show_character_palette(&mut self, _: &ShowCharacterPalette, cx: &mut ViewContext<Self>) {
9699 cx.show_character_palette();
9700 }
9701
9702 fn refresh_active_diagnostics(&mut self, cx: &mut ViewContext<Editor>) {
9703 if let Some(active_diagnostics) = self.active_diagnostics.as_mut() {
9704 let buffer = self.buffer.read(cx).snapshot(cx);
9705 let primary_range_start = active_diagnostics.primary_range.start.to_offset(&buffer);
9706 let is_valid = buffer
9707 .diagnostics_in_range::<_, usize>(active_diagnostics.primary_range.clone(), false)
9708 .any(|entry| {
9709 entry.diagnostic.is_primary
9710 && !entry.range.is_empty()
9711 && entry.range.start == primary_range_start
9712 && entry.diagnostic.message == active_diagnostics.primary_message
9713 });
9714
9715 if is_valid != active_diagnostics.is_valid {
9716 active_diagnostics.is_valid = is_valid;
9717 let mut new_styles = HashMap::default();
9718 for (block_id, diagnostic) in &active_diagnostics.blocks {
9719 new_styles.insert(
9720 *block_id,
9721 (
9722 None,
9723 diagnostic_block_renderer(diagnostic.clone(), is_valid),
9724 ),
9725 );
9726 }
9727 self.display_map.update(cx, |display_map, cx| {
9728 display_map.replace_blocks(new_styles, cx)
9729 });
9730 }
9731 }
9732 }
9733
9734 fn activate_diagnostics(&mut self, group_id: usize, cx: &mut ViewContext<Self>) -> bool {
9735 self.dismiss_diagnostics(cx);
9736 let snapshot = self.snapshot(cx);
9737 self.active_diagnostics = self.display_map.update(cx, |display_map, cx| {
9738 let buffer = self.buffer.read(cx).snapshot(cx);
9739
9740 let mut primary_range = None;
9741 let mut primary_message = None;
9742 let mut group_end = Point::zero();
9743 let diagnostic_group = buffer
9744 .diagnostic_group::<MultiBufferPoint>(group_id)
9745 .filter_map(|entry| {
9746 if snapshot.is_line_folded(MultiBufferRow(entry.range.start.row))
9747 && (entry.range.start.row == entry.range.end.row
9748 || snapshot.is_line_folded(MultiBufferRow(entry.range.end.row)))
9749 {
9750 return None;
9751 }
9752 if entry.range.end > group_end {
9753 group_end = entry.range.end;
9754 }
9755 if entry.diagnostic.is_primary {
9756 primary_range = Some(entry.range.clone());
9757 primary_message = Some(entry.diagnostic.message.clone());
9758 }
9759 Some(entry)
9760 })
9761 .collect::<Vec<_>>();
9762 let primary_range = primary_range?;
9763 let primary_message = primary_message?;
9764 let primary_range =
9765 buffer.anchor_after(primary_range.start)..buffer.anchor_before(primary_range.end);
9766
9767 let blocks = display_map
9768 .insert_blocks(
9769 diagnostic_group.iter().map(|entry| {
9770 let diagnostic = entry.diagnostic.clone();
9771 let message_height = diagnostic.message.matches('\n').count() as u8 + 1;
9772 BlockProperties {
9773 style: BlockStyle::Fixed,
9774 position: buffer.anchor_after(entry.range.start),
9775 height: message_height,
9776 render: diagnostic_block_renderer(diagnostic, true),
9777 disposition: BlockDisposition::Below,
9778 }
9779 }),
9780 cx,
9781 )
9782 .into_iter()
9783 .zip(diagnostic_group.into_iter().map(|entry| entry.diagnostic))
9784 .collect();
9785
9786 Some(ActiveDiagnosticGroup {
9787 primary_range,
9788 primary_message,
9789 group_id,
9790 blocks,
9791 is_valid: true,
9792 })
9793 });
9794 self.active_diagnostics.is_some()
9795 }
9796
9797 fn dismiss_diagnostics(&mut self, cx: &mut ViewContext<Self>) {
9798 if let Some(active_diagnostic_group) = self.active_diagnostics.take() {
9799 self.display_map.update(cx, |display_map, cx| {
9800 display_map.remove_blocks(active_diagnostic_group.blocks.into_keys().collect(), cx);
9801 });
9802 cx.notify();
9803 }
9804 }
9805
9806 pub fn set_selections_from_remote(
9807 &mut self,
9808 selections: Vec<Selection<Anchor>>,
9809 pending_selection: Option<Selection<Anchor>>,
9810 cx: &mut ViewContext<Self>,
9811 ) {
9812 let old_cursor_position = self.selections.newest_anchor().head();
9813 self.selections.change_with(cx, |s| {
9814 s.select_anchors(selections);
9815 if let Some(pending_selection) = pending_selection {
9816 s.set_pending(pending_selection, SelectMode::Character);
9817 } else {
9818 s.clear_pending();
9819 }
9820 });
9821 self.selections_did_change(false, &old_cursor_position, true, cx);
9822 }
9823
9824 fn push_to_selection_history(&mut self) {
9825 self.selection_history.push(SelectionHistoryEntry {
9826 selections: self.selections.disjoint_anchors(),
9827 select_next_state: self.select_next_state.clone(),
9828 select_prev_state: self.select_prev_state.clone(),
9829 add_selections_state: self.add_selections_state.clone(),
9830 });
9831 }
9832
9833 pub fn transact(
9834 &mut self,
9835 cx: &mut ViewContext<Self>,
9836 update: impl FnOnce(&mut Self, &mut ViewContext<Self>),
9837 ) -> Option<TransactionId> {
9838 self.start_transaction_at(Instant::now(), cx);
9839 update(self, cx);
9840 self.end_transaction_at(Instant::now(), cx)
9841 }
9842
9843 fn start_transaction_at(&mut self, now: Instant, cx: &mut ViewContext<Self>) {
9844 self.end_selection(cx);
9845 if let Some(tx_id) = self
9846 .buffer
9847 .update(cx, |buffer, cx| buffer.start_transaction_at(now, cx))
9848 {
9849 self.selection_history
9850 .insert_transaction(tx_id, self.selections.disjoint_anchors());
9851 cx.emit(EditorEvent::TransactionBegun {
9852 transaction_id: tx_id,
9853 })
9854 }
9855 }
9856
9857 fn end_transaction_at(
9858 &mut self,
9859 now: Instant,
9860 cx: &mut ViewContext<Self>,
9861 ) -> Option<TransactionId> {
9862 if let Some(transaction_id) = self
9863 .buffer
9864 .update(cx, |buffer, cx| buffer.end_transaction_at(now, cx))
9865 {
9866 if let Some((_, end_selections)) =
9867 self.selection_history.transaction_mut(transaction_id)
9868 {
9869 *end_selections = Some(self.selections.disjoint_anchors());
9870 } else {
9871 log::error!("unexpectedly ended a transaction that wasn't started by this editor");
9872 }
9873
9874 cx.emit(EditorEvent::Edited { transaction_id });
9875 Some(transaction_id)
9876 } else {
9877 None
9878 }
9879 }
9880
9881 pub fn fold(&mut self, _: &actions::Fold, cx: &mut ViewContext<Self>) {
9882 let mut fold_ranges = Vec::new();
9883
9884 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
9885
9886 let selections = self.selections.all_adjusted(cx);
9887 for selection in selections {
9888 let range = selection.range().sorted();
9889 let buffer_start_row = range.start.row;
9890
9891 for row in (0..=range.end.row).rev() {
9892 if let Some((foldable_range, fold_text)) =
9893 display_map.foldable_range(MultiBufferRow(row))
9894 {
9895 if foldable_range.end.row >= buffer_start_row {
9896 fold_ranges.push((foldable_range, fold_text));
9897 if row <= range.start.row {
9898 break;
9899 }
9900 }
9901 }
9902 }
9903 }
9904
9905 self.fold_ranges(fold_ranges, true, cx);
9906 }
9907
9908 pub fn fold_at(&mut self, fold_at: &FoldAt, cx: &mut ViewContext<Self>) {
9909 let buffer_row = fold_at.buffer_row;
9910 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
9911
9912 if let Some((fold_range, placeholder)) = display_map.foldable_range(buffer_row) {
9913 let autoscroll = self
9914 .selections
9915 .all::<Point>(cx)
9916 .iter()
9917 .any(|selection| fold_range.overlaps(&selection.range()));
9918
9919 self.fold_ranges([(fold_range, placeholder)], autoscroll, cx);
9920 }
9921 }
9922
9923 pub fn unfold_lines(&mut self, _: &UnfoldLines, cx: &mut ViewContext<Self>) {
9924 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
9925 let buffer = &display_map.buffer_snapshot;
9926 let selections = self.selections.all::<Point>(cx);
9927 let ranges = selections
9928 .iter()
9929 .map(|s| {
9930 let range = s.display_range(&display_map).sorted();
9931 let mut start = range.start.to_point(&display_map);
9932 let mut end = range.end.to_point(&display_map);
9933 start.column = 0;
9934 end.column = buffer.line_len(MultiBufferRow(end.row));
9935 start..end
9936 })
9937 .collect::<Vec<_>>();
9938
9939 self.unfold_ranges(ranges, true, true, cx);
9940 }
9941
9942 pub fn unfold_at(&mut self, unfold_at: &UnfoldAt, cx: &mut ViewContext<Self>) {
9943 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
9944
9945 let intersection_range = Point::new(unfold_at.buffer_row.0, 0)
9946 ..Point::new(
9947 unfold_at.buffer_row.0,
9948 display_map.buffer_snapshot.line_len(unfold_at.buffer_row),
9949 );
9950
9951 let autoscroll = self
9952 .selections
9953 .all::<Point>(cx)
9954 .iter()
9955 .any(|selection| selection.range().overlaps(&intersection_range));
9956
9957 self.unfold_ranges(std::iter::once(intersection_range), true, autoscroll, cx)
9958 }
9959
9960 pub fn fold_selected_ranges(&mut self, _: &FoldSelectedRanges, cx: &mut ViewContext<Self>) {
9961 let selections = self.selections.all::<Point>(cx);
9962 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
9963 let line_mode = self.selections.line_mode;
9964 let ranges = selections.into_iter().map(|s| {
9965 if line_mode {
9966 let start = Point::new(s.start.row, 0);
9967 let end = Point::new(
9968 s.end.row,
9969 display_map
9970 .buffer_snapshot
9971 .line_len(MultiBufferRow(s.end.row)),
9972 );
9973 (start..end, display_map.fold_placeholder.clone())
9974 } else {
9975 (s.start..s.end, display_map.fold_placeholder.clone())
9976 }
9977 });
9978 self.fold_ranges(ranges, true, cx);
9979 }
9980
9981 pub fn fold_ranges<T: ToOffset + Clone>(
9982 &mut self,
9983 ranges: impl IntoIterator<Item = (Range<T>, FoldPlaceholder)>,
9984 auto_scroll: bool,
9985 cx: &mut ViewContext<Self>,
9986 ) {
9987 let mut fold_ranges = Vec::new();
9988 let mut buffers_affected = HashMap::default();
9989 let multi_buffer = self.buffer().read(cx);
9990 for (fold_range, fold_text) in ranges {
9991 if let Some((_, buffer, _)) =
9992 multi_buffer.excerpt_containing(fold_range.start.clone(), cx)
9993 {
9994 buffers_affected.insert(buffer.read(cx).remote_id(), buffer);
9995 };
9996 fold_ranges.push((fold_range, fold_text));
9997 }
9998
9999 let mut ranges = fold_ranges.into_iter().peekable();
10000 if ranges.peek().is_some() {
10001 self.display_map.update(cx, |map, cx| map.fold(ranges, cx));
10002
10003 if auto_scroll {
10004 self.request_autoscroll(Autoscroll::fit(), cx);
10005 }
10006
10007 for buffer in buffers_affected.into_values() {
10008 self.sync_expanded_diff_hunks(buffer, cx);
10009 }
10010
10011 cx.notify();
10012
10013 if let Some(active_diagnostics) = self.active_diagnostics.take() {
10014 // Clear diagnostics block when folding a range that contains it.
10015 let snapshot = self.snapshot(cx);
10016 if snapshot.intersects_fold(active_diagnostics.primary_range.start) {
10017 drop(snapshot);
10018 self.active_diagnostics = Some(active_diagnostics);
10019 self.dismiss_diagnostics(cx);
10020 } else {
10021 self.active_diagnostics = Some(active_diagnostics);
10022 }
10023 }
10024
10025 self.scrollbar_marker_state.dirty = true;
10026 }
10027 }
10028
10029 pub fn unfold_ranges<T: ToOffset + Clone>(
10030 &mut self,
10031 ranges: impl IntoIterator<Item = Range<T>>,
10032 inclusive: bool,
10033 auto_scroll: bool,
10034 cx: &mut ViewContext<Self>,
10035 ) {
10036 let mut unfold_ranges = Vec::new();
10037 let mut buffers_affected = HashMap::default();
10038 let multi_buffer = self.buffer().read(cx);
10039 for range in ranges {
10040 if let Some((_, buffer, _)) = multi_buffer.excerpt_containing(range.start.clone(), cx) {
10041 buffers_affected.insert(buffer.read(cx).remote_id(), buffer);
10042 };
10043 unfold_ranges.push(range);
10044 }
10045
10046 let mut ranges = unfold_ranges.into_iter().peekable();
10047 if ranges.peek().is_some() {
10048 self.display_map
10049 .update(cx, |map, cx| map.unfold(ranges, inclusive, cx));
10050 if auto_scroll {
10051 self.request_autoscroll(Autoscroll::fit(), cx);
10052 }
10053
10054 for buffer in buffers_affected.into_values() {
10055 self.sync_expanded_diff_hunks(buffer, cx);
10056 }
10057
10058 cx.notify();
10059 self.scrollbar_marker_state.dirty = true;
10060 self.active_indent_guides_state.dirty = true;
10061 }
10062 }
10063
10064 pub fn set_gutter_hovered(&mut self, hovered: bool, cx: &mut ViewContext<Self>) {
10065 if hovered != self.gutter_hovered {
10066 self.gutter_hovered = hovered;
10067 cx.notify();
10068 }
10069 }
10070
10071 pub fn insert_blocks(
10072 &mut self,
10073 blocks: impl IntoIterator<Item = BlockProperties<Anchor>>,
10074 autoscroll: Option<Autoscroll>,
10075 cx: &mut ViewContext<Self>,
10076 ) -> Vec<BlockId> {
10077 let blocks = self
10078 .display_map
10079 .update(cx, |display_map, cx| display_map.insert_blocks(blocks, cx));
10080 if let Some(autoscroll) = autoscroll {
10081 self.request_autoscroll(autoscroll, cx);
10082 }
10083 blocks
10084 }
10085
10086 pub fn replace_blocks(
10087 &mut self,
10088 blocks: HashMap<BlockId, (Option<u8>, RenderBlock)>,
10089 autoscroll: Option<Autoscroll>,
10090 cx: &mut ViewContext<Self>,
10091 ) {
10092 self.display_map
10093 .update(cx, |display_map, cx| display_map.replace_blocks(blocks, cx));
10094 if let Some(autoscroll) = autoscroll {
10095 self.request_autoscroll(autoscroll, cx);
10096 }
10097 }
10098
10099 pub fn remove_blocks(
10100 &mut self,
10101 block_ids: HashSet<BlockId>,
10102 autoscroll: Option<Autoscroll>,
10103 cx: &mut ViewContext<Self>,
10104 ) {
10105 self.display_map.update(cx, |display_map, cx| {
10106 display_map.remove_blocks(block_ids, cx)
10107 });
10108 if let Some(autoscroll) = autoscroll {
10109 self.request_autoscroll(autoscroll, cx);
10110 }
10111 }
10112
10113 pub fn row_for_block(
10114 &self,
10115 block_id: BlockId,
10116 cx: &mut ViewContext<Self>,
10117 ) -> Option<DisplayRow> {
10118 self.display_map
10119 .update(cx, |map, cx| map.row_for_block(block_id, cx))
10120 }
10121
10122 pub fn insert_creases(
10123 &mut self,
10124 creases: impl IntoIterator<Item = Crease>,
10125 cx: &mut ViewContext<Self>,
10126 ) -> Vec<CreaseId> {
10127 self.display_map
10128 .update(cx, |map, cx| map.insert_creases(creases, cx))
10129 }
10130
10131 pub fn remove_creases(
10132 &mut self,
10133 ids: impl IntoIterator<Item = CreaseId>,
10134 cx: &mut ViewContext<Self>,
10135 ) {
10136 self.display_map
10137 .update(cx, |map, cx| map.remove_creases(ids, cx));
10138 }
10139
10140 pub fn longest_row(&self, cx: &mut AppContext) -> DisplayRow {
10141 self.display_map
10142 .update(cx, |map, cx| map.snapshot(cx))
10143 .longest_row()
10144 }
10145
10146 pub fn max_point(&self, cx: &mut AppContext) -> DisplayPoint {
10147 self.display_map
10148 .update(cx, |map, cx| map.snapshot(cx))
10149 .max_point()
10150 }
10151
10152 pub fn text(&self, cx: &AppContext) -> String {
10153 self.buffer.read(cx).read(cx).text()
10154 }
10155
10156 pub fn text_option(&self, cx: &AppContext) -> Option<String> {
10157 let text = self.text(cx);
10158 let text = text.trim();
10159
10160 if text.is_empty() {
10161 return None;
10162 }
10163
10164 Some(text.to_string())
10165 }
10166
10167 pub fn set_text(&mut self, text: impl Into<Arc<str>>, cx: &mut ViewContext<Self>) {
10168 self.transact(cx, |this, cx| {
10169 this.buffer
10170 .read(cx)
10171 .as_singleton()
10172 .expect("you can only call set_text on editors for singleton buffers")
10173 .update(cx, |buffer, cx| buffer.set_text(text, cx));
10174 });
10175 }
10176
10177 pub fn display_text(&self, cx: &mut AppContext) -> String {
10178 self.display_map
10179 .update(cx, |map, cx| map.snapshot(cx))
10180 .text()
10181 }
10182
10183 pub fn wrap_guides(&self, cx: &AppContext) -> SmallVec<[(usize, bool); 2]> {
10184 let mut wrap_guides = smallvec::smallvec![];
10185
10186 if self.show_wrap_guides == Some(false) {
10187 return wrap_guides;
10188 }
10189
10190 let settings = self.buffer.read(cx).settings_at(0, cx);
10191 if settings.show_wrap_guides {
10192 if let SoftWrap::Column(soft_wrap) = self.soft_wrap_mode(cx) {
10193 wrap_guides.push((soft_wrap as usize, true));
10194 }
10195 wrap_guides.extend(settings.wrap_guides.iter().map(|guide| (*guide, false)))
10196 }
10197
10198 wrap_guides
10199 }
10200
10201 pub fn soft_wrap_mode(&self, cx: &AppContext) -> SoftWrap {
10202 let settings = self.buffer.read(cx).settings_at(0, cx);
10203 let mode = self
10204 .soft_wrap_mode_override
10205 .unwrap_or_else(|| settings.soft_wrap);
10206 match mode {
10207 language_settings::SoftWrap::None => SoftWrap::None,
10208 language_settings::SoftWrap::PreferLine => SoftWrap::PreferLine,
10209 language_settings::SoftWrap::EditorWidth => SoftWrap::EditorWidth,
10210 language_settings::SoftWrap::PreferredLineLength => {
10211 SoftWrap::Column(settings.preferred_line_length)
10212 }
10213 }
10214 }
10215
10216 pub fn set_soft_wrap_mode(
10217 &mut self,
10218 mode: language_settings::SoftWrap,
10219 cx: &mut ViewContext<Self>,
10220 ) {
10221 self.soft_wrap_mode_override = Some(mode);
10222 cx.notify();
10223 }
10224
10225 pub fn set_style(&mut self, style: EditorStyle, cx: &mut ViewContext<Self>) {
10226 let rem_size = cx.rem_size();
10227 self.display_map.update(cx, |map, cx| {
10228 map.set_font(
10229 style.text.font(),
10230 style.text.font_size.to_pixels(rem_size),
10231 cx,
10232 )
10233 });
10234 self.style = Some(style);
10235 }
10236
10237 pub fn style(&self) -> Option<&EditorStyle> {
10238 self.style.as_ref()
10239 }
10240
10241 // Called by the element. This method is not designed to be called outside of the editor
10242 // element's layout code because it does not notify when rewrapping is computed synchronously.
10243 pub(crate) fn set_wrap_width(&self, width: Option<Pixels>, cx: &mut AppContext) -> bool {
10244 self.display_map
10245 .update(cx, |map, cx| map.set_wrap_width(width, cx))
10246 }
10247
10248 pub fn toggle_soft_wrap(&mut self, _: &ToggleSoftWrap, cx: &mut ViewContext<Self>) {
10249 if self.soft_wrap_mode_override.is_some() {
10250 self.soft_wrap_mode_override.take();
10251 } else {
10252 let soft_wrap = match self.soft_wrap_mode(cx) {
10253 SoftWrap::None | SoftWrap::PreferLine => language_settings::SoftWrap::EditorWidth,
10254 SoftWrap::EditorWidth | SoftWrap::Column(_) => {
10255 language_settings::SoftWrap::PreferLine
10256 }
10257 };
10258 self.soft_wrap_mode_override = Some(soft_wrap);
10259 }
10260 cx.notify();
10261 }
10262
10263 pub fn toggle_tab_bar(&mut self, _: &ToggleTabBar, cx: &mut ViewContext<Self>) {
10264 let Some(workspace) = self.workspace() else {
10265 return;
10266 };
10267 let fs = workspace.read(cx).app_state().fs.clone();
10268 let current_show = TabBarSettings::get_global(cx).show;
10269 update_settings_file::<TabBarSettings>(fs, cx, move |setting| {
10270 setting.show = Some(!current_show);
10271 });
10272 }
10273
10274 pub fn toggle_indent_guides(&mut self, _: &ToggleIndentGuides, cx: &mut ViewContext<Self>) {
10275 let currently_enabled = self.should_show_indent_guides().unwrap_or_else(|| {
10276 self.buffer
10277 .read(cx)
10278 .settings_at(0, cx)
10279 .indent_guides
10280 .enabled
10281 });
10282 self.show_indent_guides = Some(!currently_enabled);
10283 cx.notify();
10284 }
10285
10286 fn should_show_indent_guides(&self) -> Option<bool> {
10287 self.show_indent_guides
10288 }
10289
10290 pub fn toggle_line_numbers(&mut self, _: &ToggleLineNumbers, cx: &mut ViewContext<Self>) {
10291 let mut editor_settings = EditorSettings::get_global(cx).clone();
10292 editor_settings.gutter.line_numbers = !editor_settings.gutter.line_numbers;
10293 EditorSettings::override_global(editor_settings, cx);
10294 }
10295
10296 pub fn set_show_gutter(&mut self, show_gutter: bool, cx: &mut ViewContext<Self>) {
10297 self.show_gutter = show_gutter;
10298 cx.notify();
10299 }
10300
10301 pub fn set_show_line_numbers(&mut self, show_line_numbers: bool, cx: &mut ViewContext<Self>) {
10302 self.show_line_numbers = Some(show_line_numbers);
10303 cx.notify();
10304 }
10305
10306 pub fn set_show_git_diff_gutter(
10307 &mut self,
10308 show_git_diff_gutter: bool,
10309 cx: &mut ViewContext<Self>,
10310 ) {
10311 self.show_git_diff_gutter = Some(show_git_diff_gutter);
10312 cx.notify();
10313 }
10314
10315 pub fn set_show_code_actions(&mut self, show_code_actions: bool, cx: &mut ViewContext<Self>) {
10316 self.show_code_actions = Some(show_code_actions);
10317 cx.notify();
10318 }
10319
10320 pub fn set_show_runnables(&mut self, show_runnables: bool, cx: &mut ViewContext<Self>) {
10321 self.show_runnables = Some(show_runnables);
10322 cx.notify();
10323 }
10324
10325 pub fn set_show_wrap_guides(&mut self, show_wrap_guides: bool, cx: &mut ViewContext<Self>) {
10326 self.show_wrap_guides = Some(show_wrap_guides);
10327 cx.notify();
10328 }
10329
10330 pub fn set_show_indent_guides(&mut self, show_indent_guides: bool, cx: &mut ViewContext<Self>) {
10331 self.show_indent_guides = Some(show_indent_guides);
10332 cx.notify();
10333 }
10334
10335 pub fn reveal_in_finder(&mut self, _: &RevealInFileManager, cx: &mut ViewContext<Self>) {
10336 if let Some(buffer) = self.buffer().read(cx).as_singleton() {
10337 if let Some(file) = buffer.read(cx).file().and_then(|f| f.as_local()) {
10338 cx.reveal_path(&file.abs_path(cx));
10339 }
10340 }
10341 }
10342
10343 pub fn copy_path(&mut self, _: &CopyPath, cx: &mut ViewContext<Self>) {
10344 if let Some(buffer) = self.buffer().read(cx).as_singleton() {
10345 if let Some(file) = buffer.read(cx).file().and_then(|f| f.as_local()) {
10346 if let Some(path) = file.abs_path(cx).to_str() {
10347 cx.write_to_clipboard(ClipboardItem::new(path.to_string()));
10348 }
10349 }
10350 }
10351 }
10352
10353 pub fn copy_relative_path(&mut self, _: &CopyRelativePath, cx: &mut ViewContext<Self>) {
10354 if let Some(buffer) = self.buffer().read(cx).as_singleton() {
10355 if let Some(file) = buffer.read(cx).file().and_then(|f| f.as_local()) {
10356 if let Some(path) = file.path().to_str() {
10357 cx.write_to_clipboard(ClipboardItem::new(path.to_string()));
10358 }
10359 }
10360 }
10361 }
10362
10363 pub fn toggle_git_blame(&mut self, _: &ToggleGitBlame, cx: &mut ViewContext<Self>) {
10364 self.show_git_blame_gutter = !self.show_git_blame_gutter;
10365
10366 if self.show_git_blame_gutter && !self.has_blame_entries(cx) {
10367 self.start_git_blame(true, cx);
10368 }
10369
10370 cx.notify();
10371 }
10372
10373 pub fn toggle_git_blame_inline(
10374 &mut self,
10375 _: &ToggleGitBlameInline,
10376 cx: &mut ViewContext<Self>,
10377 ) {
10378 self.toggle_git_blame_inline_internal(true, cx);
10379 cx.notify();
10380 }
10381
10382 pub fn git_blame_inline_enabled(&self) -> bool {
10383 self.git_blame_inline_enabled
10384 }
10385
10386 pub fn toggle_selection_menu(&mut self, _: &ToggleSelectionMenu, cx: &mut ViewContext<Self>) {
10387 self.show_selection_menu = self
10388 .show_selection_menu
10389 .map(|show_selections_menu| !show_selections_menu)
10390 .or_else(|| Some(!EditorSettings::get_global(cx).toolbar.selections_menu));
10391
10392 cx.notify();
10393 }
10394
10395 pub fn selection_menu_enabled(&self, cx: &AppContext) -> bool {
10396 self.show_selection_menu
10397 .unwrap_or_else(|| EditorSettings::get_global(cx).toolbar.selections_menu)
10398 }
10399
10400 fn start_git_blame(&mut self, user_triggered: bool, cx: &mut ViewContext<Self>) {
10401 if let Some(project) = self.project.as_ref() {
10402 let Some(buffer) = self.buffer().read(cx).as_singleton() else {
10403 return;
10404 };
10405
10406 if buffer.read(cx).file().is_none() {
10407 return;
10408 }
10409
10410 let focused = self.focus_handle(cx).contains_focused(cx);
10411
10412 let project = project.clone();
10413 let blame =
10414 cx.new_model(|cx| GitBlame::new(buffer, project, user_triggered, focused, cx));
10415 self.blame_subscription = Some(cx.observe(&blame, |_, _, cx| cx.notify()));
10416 self.blame = Some(blame);
10417 }
10418 }
10419
10420 fn toggle_git_blame_inline_internal(
10421 &mut self,
10422 user_triggered: bool,
10423 cx: &mut ViewContext<Self>,
10424 ) {
10425 if self.git_blame_inline_enabled {
10426 self.git_blame_inline_enabled = false;
10427 self.show_git_blame_inline = false;
10428 self.show_git_blame_inline_delay_task.take();
10429 } else {
10430 self.git_blame_inline_enabled = true;
10431 self.start_git_blame_inline(user_triggered, cx);
10432 }
10433
10434 cx.notify();
10435 }
10436
10437 fn start_git_blame_inline(&mut self, user_triggered: bool, cx: &mut ViewContext<Self>) {
10438 self.start_git_blame(user_triggered, cx);
10439
10440 if ProjectSettings::get_global(cx)
10441 .git
10442 .inline_blame_delay()
10443 .is_some()
10444 {
10445 self.start_inline_blame_timer(cx);
10446 } else {
10447 self.show_git_blame_inline = true
10448 }
10449 }
10450
10451 pub fn blame(&self) -> Option<&Model<GitBlame>> {
10452 self.blame.as_ref()
10453 }
10454
10455 pub fn render_git_blame_gutter(&mut self, cx: &mut WindowContext) -> bool {
10456 self.show_git_blame_gutter && self.has_blame_entries(cx)
10457 }
10458
10459 pub fn render_git_blame_inline(&mut self, cx: &mut WindowContext) -> bool {
10460 self.show_git_blame_inline
10461 && self.focus_handle.is_focused(cx)
10462 && !self.newest_selection_head_on_empty_line(cx)
10463 && self.has_blame_entries(cx)
10464 }
10465
10466 fn has_blame_entries(&self, cx: &mut WindowContext) -> bool {
10467 self.blame()
10468 .map_or(false, |blame| blame.read(cx).has_generated_entries())
10469 }
10470
10471 fn newest_selection_head_on_empty_line(&mut self, cx: &mut WindowContext) -> bool {
10472 let cursor_anchor = self.selections.newest_anchor().head();
10473
10474 let snapshot = self.buffer.read(cx).snapshot(cx);
10475 let buffer_row = MultiBufferRow(cursor_anchor.to_point(&snapshot).row);
10476
10477 snapshot.line_len(buffer_row) == 0
10478 }
10479
10480 fn get_permalink_to_line(&mut self, cx: &mut ViewContext<Self>) -> Result<url::Url> {
10481 let (path, selection, repo) = maybe!({
10482 let project_handle = self.project.as_ref()?.clone();
10483 let project = project_handle.read(cx);
10484
10485 let selection = self.selections.newest::<Point>(cx);
10486 let selection_range = selection.range();
10487
10488 let (buffer, selection) = if let Some(buffer) = self.buffer().read(cx).as_singleton() {
10489 (buffer, selection_range.start.row..selection_range.end.row)
10490 } else {
10491 let buffer_ranges = self
10492 .buffer()
10493 .read(cx)
10494 .range_to_buffer_ranges(selection_range, cx);
10495
10496 let (buffer, range, _) = if selection.reversed {
10497 buffer_ranges.first()
10498 } else {
10499 buffer_ranges.last()
10500 }?;
10501
10502 let snapshot = buffer.read(cx).snapshot();
10503 let selection = text::ToPoint::to_point(&range.start, &snapshot).row
10504 ..text::ToPoint::to_point(&range.end, &snapshot).row;
10505 (buffer.clone(), selection)
10506 };
10507
10508 let path = buffer
10509 .read(cx)
10510 .file()?
10511 .as_local()?
10512 .path()
10513 .to_str()?
10514 .to_string();
10515 let repo = project.get_repo(&buffer.read(cx).project_path(cx)?, cx)?;
10516 Some((path, selection, repo))
10517 })
10518 .ok_or_else(|| anyhow!("unable to open git repository"))?;
10519
10520 const REMOTE_NAME: &str = "origin";
10521 let origin_url = repo
10522 .remote_url(REMOTE_NAME)
10523 .ok_or_else(|| anyhow!("remote \"{REMOTE_NAME}\" not found"))?;
10524 let sha = repo
10525 .head_sha()
10526 .ok_or_else(|| anyhow!("failed to read HEAD SHA"))?;
10527
10528 let (provider, remote) =
10529 parse_git_remote_url(GitHostingProviderRegistry::default_global(cx), &origin_url)
10530 .ok_or_else(|| anyhow!("failed to parse Git remote URL"))?;
10531
10532 Ok(provider.build_permalink(
10533 remote,
10534 BuildPermalinkParams {
10535 sha: &sha,
10536 path: &path,
10537 selection: Some(selection),
10538 },
10539 ))
10540 }
10541
10542 pub fn copy_permalink_to_line(&mut self, _: &CopyPermalinkToLine, cx: &mut ViewContext<Self>) {
10543 let permalink = self.get_permalink_to_line(cx);
10544
10545 match permalink {
10546 Ok(permalink) => {
10547 cx.write_to_clipboard(ClipboardItem::new(permalink.to_string()));
10548 }
10549 Err(err) => {
10550 let message = format!("Failed to copy permalink: {err}");
10551
10552 Err::<(), anyhow::Error>(err).log_err();
10553
10554 if let Some(workspace) = self.workspace() {
10555 workspace.update(cx, |workspace, cx| {
10556 struct CopyPermalinkToLine;
10557
10558 workspace.show_toast(
10559 Toast::new(NotificationId::unique::<CopyPermalinkToLine>(), message),
10560 cx,
10561 )
10562 })
10563 }
10564 }
10565 }
10566 }
10567
10568 pub fn open_permalink_to_line(&mut self, _: &OpenPermalinkToLine, cx: &mut ViewContext<Self>) {
10569 let permalink = self.get_permalink_to_line(cx);
10570
10571 match permalink {
10572 Ok(permalink) => {
10573 cx.open_url(permalink.as_ref());
10574 }
10575 Err(err) => {
10576 let message = format!("Failed to open permalink: {err}");
10577
10578 Err::<(), anyhow::Error>(err).log_err();
10579
10580 if let Some(workspace) = self.workspace() {
10581 workspace.update(cx, |workspace, cx| {
10582 struct OpenPermalinkToLine;
10583
10584 workspace.show_toast(
10585 Toast::new(NotificationId::unique::<OpenPermalinkToLine>(), message),
10586 cx,
10587 )
10588 })
10589 }
10590 }
10591 }
10592 }
10593
10594 /// Adds or removes (on `None` color) a highlight for the rows corresponding to the anchor range given.
10595 /// On matching anchor range, replaces the old highlight; does not clear the other existing highlights.
10596 /// If multiple anchor ranges will produce highlights for the same row, the last range added will be used.
10597 pub fn highlight_rows<T: 'static>(
10598 &mut self,
10599 rows: RangeInclusive<Anchor>,
10600 color: Option<Hsla>,
10601 should_autoscroll: bool,
10602 cx: &mut ViewContext<Self>,
10603 ) {
10604 let snapshot = self.buffer().read(cx).snapshot(cx);
10605 let row_highlights = self.highlighted_rows.entry(TypeId::of::<T>()).or_default();
10606 let existing_highlight_index = row_highlights.binary_search_by(|highlight| {
10607 highlight
10608 .range
10609 .start()
10610 .cmp(&rows.start(), &snapshot)
10611 .then(highlight.range.end().cmp(&rows.end(), &snapshot))
10612 });
10613 match (color, existing_highlight_index) {
10614 (Some(_), Ok(ix)) | (_, Err(ix)) => row_highlights.insert(
10615 ix,
10616 RowHighlight {
10617 index: post_inc(&mut self.highlight_order),
10618 range: rows,
10619 should_autoscroll,
10620 color,
10621 },
10622 ),
10623 (None, Ok(i)) => {
10624 row_highlights.remove(i);
10625 }
10626 }
10627 }
10628
10629 /// Clear all anchor ranges for a certain highlight context type, so no corresponding rows will be highlighted.
10630 pub fn clear_row_highlights<T: 'static>(&mut self) {
10631 self.highlighted_rows.remove(&TypeId::of::<T>());
10632 }
10633
10634 /// For a highlight given context type, gets all anchor ranges that will be used for row highlighting.
10635 pub fn highlighted_rows<T: 'static>(
10636 &self,
10637 ) -> Option<impl Iterator<Item = (&RangeInclusive<Anchor>, Option<&Hsla>)>> {
10638 Some(
10639 self.highlighted_rows
10640 .get(&TypeId::of::<T>())?
10641 .iter()
10642 .map(|highlight| (&highlight.range, highlight.color.as_ref())),
10643 )
10644 }
10645
10646 /// Merges all anchor ranges for all context types ever set, picking the last highlight added in case of a row conflict.
10647 /// Rerturns a map of display rows that are highlighted and their corresponding highlight color.
10648 /// Allows to ignore certain kinds of highlights.
10649 pub fn highlighted_display_rows(
10650 &mut self,
10651 cx: &mut WindowContext,
10652 ) -> BTreeMap<DisplayRow, Hsla> {
10653 let snapshot = self.snapshot(cx);
10654 let mut used_highlight_orders = HashMap::default();
10655 self.highlighted_rows
10656 .iter()
10657 .flat_map(|(_, highlighted_rows)| highlighted_rows.iter())
10658 .fold(
10659 BTreeMap::<DisplayRow, Hsla>::new(),
10660 |mut unique_rows, highlight| {
10661 let start_row = highlight.range.start().to_display_point(&snapshot).row();
10662 let end_row = highlight.range.end().to_display_point(&snapshot).row();
10663 for row in start_row.0..=end_row.0 {
10664 let used_index =
10665 used_highlight_orders.entry(row).or_insert(highlight.index);
10666 if highlight.index >= *used_index {
10667 *used_index = highlight.index;
10668 match highlight.color {
10669 Some(hsla) => unique_rows.insert(DisplayRow(row), hsla),
10670 None => unique_rows.remove(&DisplayRow(row)),
10671 };
10672 }
10673 }
10674 unique_rows
10675 },
10676 )
10677 }
10678
10679 pub fn highlighted_display_row_for_autoscroll(
10680 &self,
10681 snapshot: &DisplaySnapshot,
10682 ) -> Option<DisplayRow> {
10683 self.highlighted_rows
10684 .values()
10685 .flat_map(|highlighted_rows| highlighted_rows.iter())
10686 .filter_map(|highlight| {
10687 if highlight.color.is_none() || !highlight.should_autoscroll {
10688 return None;
10689 }
10690 Some(highlight.range.start().to_display_point(&snapshot).row())
10691 })
10692 .min()
10693 }
10694
10695 pub fn set_search_within_ranges(
10696 &mut self,
10697 ranges: &[Range<Anchor>],
10698 cx: &mut ViewContext<Self>,
10699 ) {
10700 self.highlight_background::<SearchWithinRange>(
10701 ranges,
10702 |colors| colors.editor_document_highlight_read_background,
10703 cx,
10704 )
10705 }
10706
10707 pub fn set_breadcrumb_header(&mut self, new_header: String) {
10708 self.breadcrumb_header = Some(new_header);
10709 }
10710
10711 pub fn clear_search_within_ranges(&mut self, cx: &mut ViewContext<Self>) {
10712 self.clear_background_highlights::<SearchWithinRange>(cx);
10713 }
10714
10715 pub fn highlight_background<T: 'static>(
10716 &mut self,
10717 ranges: &[Range<Anchor>],
10718 color_fetcher: fn(&ThemeColors) -> Hsla,
10719 cx: &mut ViewContext<Self>,
10720 ) {
10721 let snapshot = self.snapshot(cx);
10722 // this is to try and catch a panic sooner
10723 for range in ranges {
10724 snapshot
10725 .buffer_snapshot
10726 .summary_for_anchor::<usize>(&range.start);
10727 snapshot
10728 .buffer_snapshot
10729 .summary_for_anchor::<usize>(&range.end);
10730 }
10731
10732 self.background_highlights
10733 .insert(TypeId::of::<T>(), (color_fetcher, Arc::from(ranges)));
10734 self.scrollbar_marker_state.dirty = true;
10735 cx.notify();
10736 }
10737
10738 pub fn clear_background_highlights<T: 'static>(
10739 &mut self,
10740 cx: &mut ViewContext<Self>,
10741 ) -> Option<BackgroundHighlight> {
10742 let text_highlights = self.background_highlights.remove(&TypeId::of::<T>())?;
10743 if !text_highlights.1.is_empty() {
10744 self.scrollbar_marker_state.dirty = true;
10745 cx.notify();
10746 }
10747 Some(text_highlights)
10748 }
10749
10750 pub fn highlight_gutter<T: 'static>(
10751 &mut self,
10752 ranges: &[Range<Anchor>],
10753 color_fetcher: fn(&AppContext) -> Hsla,
10754 cx: &mut ViewContext<Self>,
10755 ) {
10756 self.gutter_highlights
10757 .insert(TypeId::of::<T>(), (color_fetcher, Arc::from(ranges)));
10758 cx.notify();
10759 }
10760
10761 pub fn clear_gutter_highlights<T: 'static>(
10762 &mut self,
10763 cx: &mut ViewContext<Self>,
10764 ) -> Option<GutterHighlight> {
10765 cx.notify();
10766 self.gutter_highlights.remove(&TypeId::of::<T>())
10767 }
10768
10769 #[cfg(feature = "test-support")]
10770 pub fn all_text_background_highlights(
10771 &mut self,
10772 cx: &mut ViewContext<Self>,
10773 ) -> Vec<(Range<DisplayPoint>, Hsla)> {
10774 let snapshot = self.snapshot(cx);
10775 let buffer = &snapshot.buffer_snapshot;
10776 let start = buffer.anchor_before(0);
10777 let end = buffer.anchor_after(buffer.len());
10778 let theme = cx.theme().colors();
10779 self.background_highlights_in_range(start..end, &snapshot, theme)
10780 }
10781
10782 #[cfg(feature = "test-support")]
10783 pub fn search_background_highlights(
10784 &mut self,
10785 cx: &mut ViewContext<Self>,
10786 ) -> Vec<Range<Point>> {
10787 let snapshot = self.buffer().read(cx).snapshot(cx);
10788
10789 let highlights = self
10790 .background_highlights
10791 .get(&TypeId::of::<items::BufferSearchHighlights>());
10792
10793 if let Some((_color, ranges)) = highlights {
10794 ranges
10795 .iter()
10796 .map(|range| range.start.to_point(&snapshot)..range.end.to_point(&snapshot))
10797 .collect_vec()
10798 } else {
10799 vec![]
10800 }
10801 }
10802
10803 fn document_highlights_for_position<'a>(
10804 &'a self,
10805 position: Anchor,
10806 buffer: &'a MultiBufferSnapshot,
10807 ) -> impl 'a + Iterator<Item = &Range<Anchor>> {
10808 let read_highlights = self
10809 .background_highlights
10810 .get(&TypeId::of::<DocumentHighlightRead>())
10811 .map(|h| &h.1);
10812 let write_highlights = self
10813 .background_highlights
10814 .get(&TypeId::of::<DocumentHighlightWrite>())
10815 .map(|h| &h.1);
10816 let left_position = position.bias_left(buffer);
10817 let right_position = position.bias_right(buffer);
10818 read_highlights
10819 .into_iter()
10820 .chain(write_highlights)
10821 .flat_map(move |ranges| {
10822 let start_ix = match ranges.binary_search_by(|probe| {
10823 let cmp = probe.end.cmp(&left_position, buffer);
10824 if cmp.is_ge() {
10825 Ordering::Greater
10826 } else {
10827 Ordering::Less
10828 }
10829 }) {
10830 Ok(i) | Err(i) => i,
10831 };
10832
10833 ranges[start_ix..]
10834 .iter()
10835 .take_while(move |range| range.start.cmp(&right_position, buffer).is_le())
10836 })
10837 }
10838
10839 pub fn has_background_highlights<T: 'static>(&self) -> bool {
10840 self.background_highlights
10841 .get(&TypeId::of::<T>())
10842 .map_or(false, |(_, highlights)| !highlights.is_empty())
10843 }
10844
10845 pub fn background_highlights_in_range(
10846 &self,
10847 search_range: Range<Anchor>,
10848 display_snapshot: &DisplaySnapshot,
10849 theme: &ThemeColors,
10850 ) -> Vec<(Range<DisplayPoint>, Hsla)> {
10851 let mut results = Vec::new();
10852 for (color_fetcher, ranges) in self.background_highlights.values() {
10853 let color = color_fetcher(theme);
10854 let start_ix = match ranges.binary_search_by(|probe| {
10855 let cmp = probe
10856 .end
10857 .cmp(&search_range.start, &display_snapshot.buffer_snapshot);
10858 if cmp.is_gt() {
10859 Ordering::Greater
10860 } else {
10861 Ordering::Less
10862 }
10863 }) {
10864 Ok(i) | Err(i) => i,
10865 };
10866 for range in &ranges[start_ix..] {
10867 if range
10868 .start
10869 .cmp(&search_range.end, &display_snapshot.buffer_snapshot)
10870 .is_ge()
10871 {
10872 break;
10873 }
10874
10875 let start = range.start.to_display_point(&display_snapshot);
10876 let end = range.end.to_display_point(&display_snapshot);
10877 results.push((start..end, color))
10878 }
10879 }
10880 results
10881 }
10882
10883 pub fn background_highlight_row_ranges<T: 'static>(
10884 &self,
10885 search_range: Range<Anchor>,
10886 display_snapshot: &DisplaySnapshot,
10887 count: usize,
10888 ) -> Vec<RangeInclusive<DisplayPoint>> {
10889 let mut results = Vec::new();
10890 let Some((_, ranges)) = self.background_highlights.get(&TypeId::of::<T>()) else {
10891 return vec![];
10892 };
10893
10894 let start_ix = match ranges.binary_search_by(|probe| {
10895 let cmp = probe
10896 .end
10897 .cmp(&search_range.start, &display_snapshot.buffer_snapshot);
10898 if cmp.is_gt() {
10899 Ordering::Greater
10900 } else {
10901 Ordering::Less
10902 }
10903 }) {
10904 Ok(i) | Err(i) => i,
10905 };
10906 let mut push_region = |start: Option<Point>, end: Option<Point>| {
10907 if let (Some(start_display), Some(end_display)) = (start, end) {
10908 results.push(
10909 start_display.to_display_point(display_snapshot)
10910 ..=end_display.to_display_point(display_snapshot),
10911 );
10912 }
10913 };
10914 let mut start_row: Option<Point> = None;
10915 let mut end_row: Option<Point> = None;
10916 if ranges.len() > count {
10917 return Vec::new();
10918 }
10919 for range in &ranges[start_ix..] {
10920 if range
10921 .start
10922 .cmp(&search_range.end, &display_snapshot.buffer_snapshot)
10923 .is_ge()
10924 {
10925 break;
10926 }
10927 let end = range.end.to_point(&display_snapshot.buffer_snapshot);
10928 if let Some(current_row) = &end_row {
10929 if end.row == current_row.row {
10930 continue;
10931 }
10932 }
10933 let start = range.start.to_point(&display_snapshot.buffer_snapshot);
10934 if start_row.is_none() {
10935 assert_eq!(end_row, None);
10936 start_row = Some(start);
10937 end_row = Some(end);
10938 continue;
10939 }
10940 if let Some(current_end) = end_row.as_mut() {
10941 if start.row > current_end.row + 1 {
10942 push_region(start_row, end_row);
10943 start_row = Some(start);
10944 end_row = Some(end);
10945 } else {
10946 // Merge two hunks.
10947 *current_end = end;
10948 }
10949 } else {
10950 unreachable!();
10951 }
10952 }
10953 // We might still have a hunk that was not rendered (if there was a search hit on the last line)
10954 push_region(start_row, end_row);
10955 results
10956 }
10957
10958 pub fn gutter_highlights_in_range(
10959 &self,
10960 search_range: Range<Anchor>,
10961 display_snapshot: &DisplaySnapshot,
10962 cx: &AppContext,
10963 ) -> Vec<(Range<DisplayPoint>, Hsla)> {
10964 let mut results = Vec::new();
10965 for (color_fetcher, ranges) in self.gutter_highlights.values() {
10966 let color = color_fetcher(cx);
10967 let start_ix = match ranges.binary_search_by(|probe| {
10968 let cmp = probe
10969 .end
10970 .cmp(&search_range.start, &display_snapshot.buffer_snapshot);
10971 if cmp.is_gt() {
10972 Ordering::Greater
10973 } else {
10974 Ordering::Less
10975 }
10976 }) {
10977 Ok(i) | Err(i) => i,
10978 };
10979 for range in &ranges[start_ix..] {
10980 if range
10981 .start
10982 .cmp(&search_range.end, &display_snapshot.buffer_snapshot)
10983 .is_ge()
10984 {
10985 break;
10986 }
10987
10988 let start = range.start.to_display_point(&display_snapshot);
10989 let end = range.end.to_display_point(&display_snapshot);
10990 results.push((start..end, color))
10991 }
10992 }
10993 results
10994 }
10995
10996 /// Get the text ranges corresponding to the redaction query
10997 pub fn redacted_ranges(
10998 &self,
10999 search_range: Range<Anchor>,
11000 display_snapshot: &DisplaySnapshot,
11001 cx: &WindowContext,
11002 ) -> Vec<Range<DisplayPoint>> {
11003 display_snapshot
11004 .buffer_snapshot
11005 .redacted_ranges(search_range, |file| {
11006 if let Some(file) = file {
11007 file.is_private()
11008 && EditorSettings::get(Some(file.as_ref().into()), cx).redact_private_values
11009 } else {
11010 false
11011 }
11012 })
11013 .map(|range| {
11014 range.start.to_display_point(display_snapshot)
11015 ..range.end.to_display_point(display_snapshot)
11016 })
11017 .collect()
11018 }
11019
11020 pub fn highlight_text<T: 'static>(
11021 &mut self,
11022 ranges: Vec<Range<Anchor>>,
11023 style: HighlightStyle,
11024 cx: &mut ViewContext<Self>,
11025 ) {
11026 self.display_map.update(cx, |map, _| {
11027 map.highlight_text(TypeId::of::<T>(), ranges, style)
11028 });
11029 cx.notify();
11030 }
11031
11032 pub(crate) fn highlight_inlays<T: 'static>(
11033 &mut self,
11034 highlights: Vec<InlayHighlight>,
11035 style: HighlightStyle,
11036 cx: &mut ViewContext<Self>,
11037 ) {
11038 self.display_map.update(cx, |map, _| {
11039 map.highlight_inlays(TypeId::of::<T>(), highlights, style)
11040 });
11041 cx.notify();
11042 }
11043
11044 pub fn text_highlights<'a, T: 'static>(
11045 &'a self,
11046 cx: &'a AppContext,
11047 ) -> Option<(HighlightStyle, &'a [Range<Anchor>])> {
11048 self.display_map.read(cx).text_highlights(TypeId::of::<T>())
11049 }
11050
11051 pub fn clear_highlights<T: 'static>(&mut self, cx: &mut ViewContext<Self>) {
11052 let cleared = self
11053 .display_map
11054 .update(cx, |map, _| map.clear_highlights(TypeId::of::<T>()));
11055 if cleared {
11056 cx.notify();
11057 }
11058 }
11059
11060 pub fn show_local_cursors(&self, cx: &WindowContext) -> bool {
11061 (self.read_only(cx) || self.blink_manager.read(cx).visible())
11062 && self.focus_handle.is_focused(cx)
11063 }
11064
11065 pub fn set_show_cursor_when_unfocused(&mut self, is_enabled: bool, cx: &mut ViewContext<Self>) {
11066 self.show_cursor_when_unfocused = is_enabled;
11067 cx.notify();
11068 }
11069
11070 fn on_buffer_changed(&mut self, _: Model<MultiBuffer>, cx: &mut ViewContext<Self>) {
11071 cx.notify();
11072 }
11073
11074 fn on_buffer_event(
11075 &mut self,
11076 multibuffer: Model<MultiBuffer>,
11077 event: &multi_buffer::Event,
11078 cx: &mut ViewContext<Self>,
11079 ) {
11080 match event {
11081 multi_buffer::Event::Edited {
11082 singleton_buffer_edited,
11083 } => {
11084 self.scrollbar_marker_state.dirty = true;
11085 self.active_indent_guides_state.dirty = true;
11086 self.refresh_active_diagnostics(cx);
11087 self.refresh_code_actions(cx);
11088 if self.has_active_inline_completion(cx) {
11089 self.update_visible_inline_completion(cx);
11090 }
11091 cx.emit(EditorEvent::BufferEdited);
11092 cx.emit(SearchEvent::MatchesInvalidated);
11093 if *singleton_buffer_edited {
11094 if let Some(project) = &self.project {
11095 let project = project.read(cx);
11096 let languages_affected = multibuffer
11097 .read(cx)
11098 .all_buffers()
11099 .into_iter()
11100 .filter_map(|buffer| {
11101 let buffer = buffer.read(cx);
11102 let language = buffer.language()?;
11103 if project.is_local()
11104 && project.language_servers_for_buffer(buffer, cx).count() == 0
11105 {
11106 None
11107 } else {
11108 Some(language)
11109 }
11110 })
11111 .cloned()
11112 .collect::<HashSet<_>>();
11113 if !languages_affected.is_empty() {
11114 self.refresh_inlay_hints(
11115 InlayHintRefreshReason::BufferEdited(languages_affected),
11116 cx,
11117 );
11118 }
11119 }
11120 }
11121
11122 let Some(project) = &self.project else { return };
11123 let telemetry = project.read(cx).client().telemetry().clone();
11124 refresh_linked_ranges(self, cx);
11125 telemetry.log_edit_event("editor");
11126 }
11127 multi_buffer::Event::ExcerptsAdded {
11128 buffer,
11129 predecessor,
11130 excerpts,
11131 } => {
11132 self.tasks_update_task = Some(self.refresh_runnables(cx));
11133 cx.emit(EditorEvent::ExcerptsAdded {
11134 buffer: buffer.clone(),
11135 predecessor: *predecessor,
11136 excerpts: excerpts.clone(),
11137 });
11138 self.refresh_inlay_hints(InlayHintRefreshReason::NewLinesShown, cx);
11139 }
11140 multi_buffer::Event::ExcerptsRemoved { ids } => {
11141 self.refresh_inlay_hints(InlayHintRefreshReason::ExcerptsRemoved(ids.clone()), cx);
11142 cx.emit(EditorEvent::ExcerptsRemoved { ids: ids.clone() })
11143 }
11144 multi_buffer::Event::ExcerptsEdited { ids } => {
11145 cx.emit(EditorEvent::ExcerptsEdited { ids: ids.clone() })
11146 }
11147 multi_buffer::Event::ExcerptsExpanded { ids } => {
11148 cx.emit(EditorEvent::ExcerptsExpanded { ids: ids.clone() })
11149 }
11150 multi_buffer::Event::Reparsed(buffer_id) => {
11151 self.tasks_update_task = Some(self.refresh_runnables(cx));
11152
11153 cx.emit(EditorEvent::Reparsed(*buffer_id));
11154 }
11155 multi_buffer::Event::LanguageChanged(buffer_id) => {
11156 linked_editing_ranges::refresh_linked_ranges(self, cx);
11157 cx.emit(EditorEvent::Reparsed(*buffer_id));
11158 cx.notify();
11159 }
11160 multi_buffer::Event::DirtyChanged => cx.emit(EditorEvent::DirtyChanged),
11161 multi_buffer::Event::Saved => cx.emit(EditorEvent::Saved),
11162 multi_buffer::Event::FileHandleChanged | multi_buffer::Event::Reloaded => {
11163 cx.emit(EditorEvent::TitleChanged)
11164 }
11165 multi_buffer::Event::DiffBaseChanged => {
11166 self.scrollbar_marker_state.dirty = true;
11167 cx.emit(EditorEvent::DiffBaseChanged);
11168 cx.notify();
11169 }
11170 multi_buffer::Event::DiffUpdated { buffer } => {
11171 self.sync_expanded_diff_hunks(buffer.clone(), cx);
11172 cx.notify();
11173 }
11174 multi_buffer::Event::Closed => cx.emit(EditorEvent::Closed),
11175 multi_buffer::Event::DiagnosticsUpdated => {
11176 self.refresh_active_diagnostics(cx);
11177 self.scrollbar_marker_state.dirty = true;
11178 cx.notify();
11179 }
11180 _ => {}
11181 };
11182 }
11183
11184 fn on_display_map_changed(&mut self, _: Model<DisplayMap>, cx: &mut ViewContext<Self>) {
11185 cx.notify();
11186 }
11187
11188 fn settings_changed(&mut self, cx: &mut ViewContext<Self>) {
11189 self.tasks_update_task = Some(self.refresh_runnables(cx));
11190 self.refresh_inline_completion(true, cx);
11191 self.refresh_inlay_hints(
11192 InlayHintRefreshReason::SettingsChange(inlay_hint_settings(
11193 self.selections.newest_anchor().head(),
11194 &self.buffer.read(cx).snapshot(cx),
11195 cx,
11196 )),
11197 cx,
11198 );
11199 let editor_settings = EditorSettings::get_global(cx);
11200 self.scroll_manager.vertical_scroll_margin = editor_settings.vertical_scroll_margin;
11201 self.show_breadcrumbs = editor_settings.toolbar.breadcrumbs;
11202
11203 if self.mode == EditorMode::Full {
11204 let inline_blame_enabled = ProjectSettings::get_global(cx).git.inline_blame_enabled();
11205 if self.git_blame_inline_enabled != inline_blame_enabled {
11206 self.toggle_git_blame_inline_internal(false, cx);
11207 }
11208 }
11209
11210 cx.notify();
11211 }
11212
11213 pub fn set_searchable(&mut self, searchable: bool) {
11214 self.searchable = searchable;
11215 }
11216
11217 pub fn searchable(&self) -> bool {
11218 self.searchable
11219 }
11220
11221 fn open_excerpts_in_split(&mut self, _: &OpenExcerptsSplit, cx: &mut ViewContext<Self>) {
11222 self.open_excerpts_common(true, cx)
11223 }
11224
11225 fn open_excerpts(&mut self, _: &OpenExcerpts, cx: &mut ViewContext<Self>) {
11226 self.open_excerpts_common(false, cx)
11227 }
11228
11229 fn open_excerpts_common(&mut self, split: bool, cx: &mut ViewContext<Self>) {
11230 let buffer = self.buffer.read(cx);
11231 if buffer.is_singleton() {
11232 cx.propagate();
11233 return;
11234 }
11235
11236 let Some(workspace) = self.workspace() else {
11237 cx.propagate();
11238 return;
11239 };
11240
11241 let mut new_selections_by_buffer = HashMap::default();
11242 for selection in self.selections.all::<usize>(cx) {
11243 for (buffer, mut range, _) in
11244 buffer.range_to_buffer_ranges(selection.start..selection.end, cx)
11245 {
11246 if selection.reversed {
11247 mem::swap(&mut range.start, &mut range.end);
11248 }
11249 new_selections_by_buffer
11250 .entry(buffer)
11251 .or_insert(Vec::new())
11252 .push(range)
11253 }
11254 }
11255
11256 // We defer the pane interaction because we ourselves are a workspace item
11257 // and activating a new item causes the pane to call a method on us reentrantly,
11258 // which panics if we're on the stack.
11259 cx.window_context().defer(move |cx| {
11260 workspace.update(cx, |workspace, cx| {
11261 let pane = if split {
11262 workspace.adjacent_pane(cx)
11263 } else {
11264 workspace.active_pane().clone()
11265 };
11266
11267 for (buffer, ranges) in new_selections_by_buffer {
11268 let editor = workspace.open_project_item::<Self>(pane.clone(), buffer, cx);
11269 editor.update(cx, |editor, cx| {
11270 editor.change_selections(Some(Autoscroll::newest()), cx, |s| {
11271 s.select_ranges(ranges);
11272 });
11273 });
11274 }
11275 })
11276 });
11277 }
11278
11279 fn jump(
11280 &mut self,
11281 path: ProjectPath,
11282 position: Point,
11283 anchor: language::Anchor,
11284 offset_from_top: u32,
11285 cx: &mut ViewContext<Self>,
11286 ) {
11287 let workspace = self.workspace();
11288 cx.spawn(|_, mut cx| async move {
11289 let workspace = workspace.ok_or_else(|| anyhow!("cannot jump without workspace"))?;
11290 let editor = workspace.update(&mut cx, |workspace, cx| {
11291 // Reset the preview item id before opening the new item
11292 workspace.active_pane().update(cx, |pane, cx| {
11293 pane.set_preview_item_id(None, cx);
11294 });
11295 workspace.open_path_preview(path, None, true, true, cx)
11296 })?;
11297 let editor = editor
11298 .await?
11299 .downcast::<Editor>()
11300 .ok_or_else(|| anyhow!("opened item was not an editor"))?
11301 .downgrade();
11302 editor.update(&mut cx, |editor, cx| {
11303 let buffer = editor
11304 .buffer()
11305 .read(cx)
11306 .as_singleton()
11307 .ok_or_else(|| anyhow!("cannot jump in a multi-buffer"))?;
11308 let buffer = buffer.read(cx);
11309 let cursor = if buffer.can_resolve(&anchor) {
11310 language::ToPoint::to_point(&anchor, buffer)
11311 } else {
11312 buffer.clip_point(position, Bias::Left)
11313 };
11314
11315 let nav_history = editor.nav_history.take();
11316 editor.change_selections(
11317 Some(Autoscroll::top_relative(offset_from_top as usize)),
11318 cx,
11319 |s| {
11320 s.select_ranges([cursor..cursor]);
11321 },
11322 );
11323 editor.nav_history = nav_history;
11324
11325 anyhow::Ok(())
11326 })??;
11327
11328 anyhow::Ok(())
11329 })
11330 .detach_and_log_err(cx);
11331 }
11332
11333 fn marked_text_ranges(&self, cx: &AppContext) -> Option<Vec<Range<OffsetUtf16>>> {
11334 let snapshot = self.buffer.read(cx).read(cx);
11335 let (_, ranges) = self.text_highlights::<InputComposition>(cx)?;
11336 Some(
11337 ranges
11338 .iter()
11339 .map(move |range| {
11340 range.start.to_offset_utf16(&snapshot)..range.end.to_offset_utf16(&snapshot)
11341 })
11342 .collect(),
11343 )
11344 }
11345
11346 fn selection_replacement_ranges(
11347 &self,
11348 range: Range<OffsetUtf16>,
11349 cx: &AppContext,
11350 ) -> Vec<Range<OffsetUtf16>> {
11351 let selections = self.selections.all::<OffsetUtf16>(cx);
11352 let newest_selection = selections
11353 .iter()
11354 .max_by_key(|selection| selection.id)
11355 .unwrap();
11356 let start_delta = range.start.0 as isize - newest_selection.start.0 as isize;
11357 let end_delta = range.end.0 as isize - newest_selection.end.0 as isize;
11358 let snapshot = self.buffer.read(cx).read(cx);
11359 selections
11360 .into_iter()
11361 .map(|mut selection| {
11362 selection.start.0 =
11363 (selection.start.0 as isize).saturating_add(start_delta) as usize;
11364 selection.end.0 = (selection.end.0 as isize).saturating_add(end_delta) as usize;
11365 snapshot.clip_offset_utf16(selection.start, Bias::Left)
11366 ..snapshot.clip_offset_utf16(selection.end, Bias::Right)
11367 })
11368 .collect()
11369 }
11370
11371 fn report_editor_event(
11372 &self,
11373 operation: &'static str,
11374 file_extension: Option<String>,
11375 cx: &AppContext,
11376 ) {
11377 if cfg!(any(test, feature = "test-support")) {
11378 return;
11379 }
11380
11381 let Some(project) = &self.project else { return };
11382
11383 // If None, we are in a file without an extension
11384 let file = self
11385 .buffer
11386 .read(cx)
11387 .as_singleton()
11388 .and_then(|b| b.read(cx).file());
11389 let file_extension = file_extension.or(file
11390 .as_ref()
11391 .and_then(|file| Path::new(file.file_name(cx)).extension())
11392 .and_then(|e| e.to_str())
11393 .map(|a| a.to_string()));
11394
11395 let vim_mode = cx
11396 .global::<SettingsStore>()
11397 .raw_user_settings()
11398 .get("vim_mode")
11399 == Some(&serde_json::Value::Bool(true));
11400
11401 let copilot_enabled = all_language_settings(file, cx).inline_completions.provider
11402 == language::language_settings::InlineCompletionProvider::Copilot;
11403 let copilot_enabled_for_language = self
11404 .buffer
11405 .read(cx)
11406 .settings_at(0, cx)
11407 .show_inline_completions;
11408
11409 let telemetry = project.read(cx).client().telemetry().clone();
11410 telemetry.report_editor_event(
11411 file_extension,
11412 vim_mode,
11413 operation,
11414 copilot_enabled,
11415 copilot_enabled_for_language,
11416 )
11417 }
11418
11419 /// Copy the highlighted chunks to the clipboard as JSON. The format is an array of lines,
11420 /// with each line being an array of {text, highlight} objects.
11421 fn copy_highlight_json(&mut self, _: &CopyHighlightJson, cx: &mut ViewContext<Self>) {
11422 let Some(buffer) = self.buffer.read(cx).as_singleton() else {
11423 return;
11424 };
11425
11426 #[derive(Serialize)]
11427 struct Chunk<'a> {
11428 text: String,
11429 highlight: Option<&'a str>,
11430 }
11431
11432 let snapshot = buffer.read(cx).snapshot();
11433 let range = self
11434 .selected_text_range(cx)
11435 .and_then(|selected_range| {
11436 if selected_range.is_empty() {
11437 None
11438 } else {
11439 Some(selected_range)
11440 }
11441 })
11442 .unwrap_or_else(|| 0..snapshot.len());
11443
11444 let chunks = snapshot.chunks(range, true);
11445 let mut lines = Vec::new();
11446 let mut line: VecDeque<Chunk> = VecDeque::new();
11447
11448 let Some(style) = self.style.as_ref() else {
11449 return;
11450 };
11451
11452 for chunk in chunks {
11453 let highlight = chunk
11454 .syntax_highlight_id
11455 .and_then(|id| id.name(&style.syntax));
11456 let mut chunk_lines = chunk.text.split('\n').peekable();
11457 while let Some(text) = chunk_lines.next() {
11458 let mut merged_with_last_token = false;
11459 if let Some(last_token) = line.back_mut() {
11460 if last_token.highlight == highlight {
11461 last_token.text.push_str(text);
11462 merged_with_last_token = true;
11463 }
11464 }
11465
11466 if !merged_with_last_token {
11467 line.push_back(Chunk {
11468 text: text.into(),
11469 highlight,
11470 });
11471 }
11472
11473 if chunk_lines.peek().is_some() {
11474 if line.len() > 1 && line.front().unwrap().text.is_empty() {
11475 line.pop_front();
11476 }
11477 if line.len() > 1 && line.back().unwrap().text.is_empty() {
11478 line.pop_back();
11479 }
11480
11481 lines.push(mem::take(&mut line));
11482 }
11483 }
11484 }
11485
11486 let Some(lines) = serde_json::to_string_pretty(&lines).log_err() else {
11487 return;
11488 };
11489 cx.write_to_clipboard(ClipboardItem::new(lines));
11490 }
11491
11492 pub fn inlay_hint_cache(&self) -> &InlayHintCache {
11493 &self.inlay_hint_cache
11494 }
11495
11496 pub fn replay_insert_event(
11497 &mut self,
11498 text: &str,
11499 relative_utf16_range: Option<Range<isize>>,
11500 cx: &mut ViewContext<Self>,
11501 ) {
11502 if !self.input_enabled {
11503 cx.emit(EditorEvent::InputIgnored { text: text.into() });
11504 return;
11505 }
11506 if let Some(relative_utf16_range) = relative_utf16_range {
11507 let selections = self.selections.all::<OffsetUtf16>(cx);
11508 self.change_selections(None, cx, |s| {
11509 let new_ranges = selections.into_iter().map(|range| {
11510 let start = OffsetUtf16(
11511 range
11512 .head()
11513 .0
11514 .saturating_add_signed(relative_utf16_range.start),
11515 );
11516 let end = OffsetUtf16(
11517 range
11518 .head()
11519 .0
11520 .saturating_add_signed(relative_utf16_range.end),
11521 );
11522 start..end
11523 });
11524 s.select_ranges(new_ranges);
11525 });
11526 }
11527
11528 self.handle_input(text, cx);
11529 }
11530
11531 pub fn supports_inlay_hints(&self, cx: &AppContext) -> bool {
11532 let Some(project) = self.project.as_ref() else {
11533 return false;
11534 };
11535 let project = project.read(cx);
11536
11537 let mut supports = false;
11538 self.buffer().read(cx).for_each_buffer(|buffer| {
11539 if !supports {
11540 supports = project
11541 .language_servers_for_buffer(buffer.read(cx), cx)
11542 .any(
11543 |(_, server)| match server.capabilities().inlay_hint_provider {
11544 Some(lsp::OneOf::Left(enabled)) => enabled,
11545 Some(lsp::OneOf::Right(_)) => true,
11546 None => false,
11547 },
11548 )
11549 }
11550 });
11551 supports
11552 }
11553
11554 pub fn focus(&self, cx: &mut WindowContext) {
11555 cx.focus(&self.focus_handle)
11556 }
11557
11558 pub fn is_focused(&self, cx: &WindowContext) -> bool {
11559 self.focus_handle.is_focused(cx)
11560 }
11561
11562 fn handle_focus(&mut self, cx: &mut ViewContext<Self>) {
11563 cx.emit(EditorEvent::Focused);
11564
11565 if let Some(descendant) = self
11566 .last_focused_descendant
11567 .take()
11568 .and_then(|descendant| descendant.upgrade())
11569 {
11570 cx.focus(&descendant);
11571 } else {
11572 if let Some(blame) = self.blame.as_ref() {
11573 blame.update(cx, GitBlame::focus)
11574 }
11575
11576 self.blink_manager.update(cx, BlinkManager::enable);
11577 self.show_cursor_names(cx);
11578 self.buffer.update(cx, |buffer, cx| {
11579 buffer.finalize_last_transaction(cx);
11580 if self.leader_peer_id.is_none() {
11581 buffer.set_active_selections(
11582 &self.selections.disjoint_anchors(),
11583 self.selections.line_mode,
11584 self.cursor_shape,
11585 cx,
11586 );
11587 }
11588 });
11589 }
11590 }
11591
11592 fn handle_focus_out(&mut self, event: FocusOutEvent, _cx: &mut ViewContext<Self>) {
11593 if event.blurred != self.focus_handle {
11594 self.last_focused_descendant = Some(event.blurred);
11595 }
11596 }
11597
11598 pub fn handle_blur(&mut self, cx: &mut ViewContext<Self>) {
11599 self.blink_manager.update(cx, BlinkManager::disable);
11600 self.buffer
11601 .update(cx, |buffer, cx| buffer.remove_active_selections(cx));
11602
11603 if let Some(blame) = self.blame.as_ref() {
11604 blame.update(cx, GitBlame::blur)
11605 }
11606 self.hide_context_menu(cx);
11607 hide_hover(self, cx);
11608 cx.emit(EditorEvent::Blurred);
11609 cx.notify();
11610 }
11611
11612 pub fn register_action<A: Action>(
11613 &mut self,
11614 listener: impl Fn(&A, &mut WindowContext) + 'static,
11615 ) -> Subscription {
11616 let id = self.next_editor_action_id.post_inc();
11617 let listener = Arc::new(listener);
11618 self.editor_actions.borrow_mut().insert(
11619 id,
11620 Box::new(move |cx| {
11621 let _view = cx.view().clone();
11622 let cx = cx.window_context();
11623 let listener = listener.clone();
11624 cx.on_action(TypeId::of::<A>(), move |action, phase, cx| {
11625 let action = action.downcast_ref().unwrap();
11626 if phase == DispatchPhase::Bubble {
11627 listener(action, cx)
11628 }
11629 })
11630 }),
11631 );
11632
11633 let editor_actions = self.editor_actions.clone();
11634 Subscription::new(move || {
11635 editor_actions.borrow_mut().remove(&id);
11636 })
11637 }
11638
11639 pub fn file_header_size(&self) -> u8 {
11640 self.file_header_size
11641 }
11642}
11643
11644fn hunks_for_selections(
11645 multi_buffer_snapshot: &MultiBufferSnapshot,
11646 selections: &[Selection<Anchor>],
11647) -> Vec<DiffHunk<MultiBufferRow>> {
11648 let mut hunks = Vec::with_capacity(selections.len());
11649 let mut processed_buffer_rows: HashMap<BufferId, HashSet<Range<text::Anchor>>> =
11650 HashMap::default();
11651 let buffer_rows_for_selections = selections.iter().map(|selection| {
11652 let head = selection.head();
11653 let tail = selection.tail();
11654 let start = MultiBufferRow(tail.to_point(&multi_buffer_snapshot).row);
11655 let end = MultiBufferRow(head.to_point(&multi_buffer_snapshot).row);
11656 if start > end {
11657 end..start
11658 } else {
11659 start..end
11660 }
11661 });
11662
11663 for selected_multi_buffer_rows in buffer_rows_for_selections {
11664 let query_rows =
11665 selected_multi_buffer_rows.start..selected_multi_buffer_rows.end.next_row();
11666 for hunk in multi_buffer_snapshot.git_diff_hunks_in_range(query_rows.clone()) {
11667 // Deleted hunk is an empty row range, no caret can be placed there and Zed allows to revert it
11668 // when the caret is just above or just below the deleted hunk.
11669 let allow_adjacent = hunk_status(&hunk) == DiffHunkStatus::Removed;
11670 let related_to_selection = if allow_adjacent {
11671 hunk.associated_range.overlaps(&query_rows)
11672 || hunk.associated_range.start == query_rows.end
11673 || hunk.associated_range.end == query_rows.start
11674 } else {
11675 // `selected_multi_buffer_rows` are inclusive (e.g. [2..2] means 2nd row is selected)
11676 // `hunk.associated_range` is exclusive (e.g. [2..3] means 2nd row is selected)
11677 hunk.associated_range.overlaps(&selected_multi_buffer_rows)
11678 || selected_multi_buffer_rows.end == hunk.associated_range.start
11679 };
11680 if related_to_selection {
11681 if !processed_buffer_rows
11682 .entry(hunk.buffer_id)
11683 .or_default()
11684 .insert(hunk.buffer_range.start..hunk.buffer_range.end)
11685 {
11686 continue;
11687 }
11688 hunks.push(hunk);
11689 }
11690 }
11691 }
11692
11693 hunks
11694}
11695
11696pub trait CollaborationHub {
11697 fn collaborators<'a>(&self, cx: &'a AppContext) -> &'a HashMap<PeerId, Collaborator>;
11698 fn user_participant_indices<'a>(
11699 &self,
11700 cx: &'a AppContext,
11701 ) -> &'a HashMap<u64, ParticipantIndex>;
11702 fn user_names(&self, cx: &AppContext) -> HashMap<u64, SharedString>;
11703}
11704
11705impl CollaborationHub for Model<Project> {
11706 fn collaborators<'a>(&self, cx: &'a AppContext) -> &'a HashMap<PeerId, Collaborator> {
11707 self.read(cx).collaborators()
11708 }
11709
11710 fn user_participant_indices<'a>(
11711 &self,
11712 cx: &'a AppContext,
11713 ) -> &'a HashMap<u64, ParticipantIndex> {
11714 self.read(cx).user_store().read(cx).participant_indices()
11715 }
11716
11717 fn user_names(&self, cx: &AppContext) -> HashMap<u64, SharedString> {
11718 let this = self.read(cx);
11719 let user_ids = this.collaborators().values().map(|c| c.user_id);
11720 this.user_store().read_with(cx, |user_store, cx| {
11721 user_store.participant_names(user_ids, cx)
11722 })
11723 }
11724}
11725
11726pub trait CompletionProvider {
11727 fn completions(
11728 &self,
11729 buffer: &Model<Buffer>,
11730 buffer_position: text::Anchor,
11731 trigger: CompletionContext,
11732 cx: &mut ViewContext<Editor>,
11733 ) -> Task<Result<Vec<Completion>>>;
11734
11735 fn resolve_completions(
11736 &self,
11737 buffer: Model<Buffer>,
11738 completion_indices: Vec<usize>,
11739 completions: Arc<RwLock<Box<[Completion]>>>,
11740 cx: &mut ViewContext<Editor>,
11741 ) -> Task<Result<bool>>;
11742
11743 fn apply_additional_edits_for_completion(
11744 &self,
11745 buffer: Model<Buffer>,
11746 completion: Completion,
11747 push_to_history: bool,
11748 cx: &mut ViewContext<Editor>,
11749 ) -> Task<Result<Option<language::Transaction>>>;
11750
11751 fn is_completion_trigger(
11752 &self,
11753 buffer: &Model<Buffer>,
11754 position: language::Anchor,
11755 text: &str,
11756 trigger_in_words: bool,
11757 cx: &mut ViewContext<Editor>,
11758 ) -> bool;
11759}
11760
11761fn snippet_completions(
11762 project: &Project,
11763 buffer: &Model<Buffer>,
11764 buffer_position: text::Anchor,
11765 cx: &mut AppContext,
11766) -> Vec<Completion> {
11767 let language = buffer.read(cx).language_at(buffer_position);
11768 let language_name = language.as_ref().map(|language| language.lsp_id());
11769 let snippet_store = project.snippets().read(cx);
11770 let snippets = snippet_store.snippets_for(language_name, cx);
11771
11772 if snippets.is_empty() {
11773 return vec![];
11774 }
11775 let snapshot = buffer.read(cx).text_snapshot();
11776 let chunks = snapshot.reversed_chunks_in_range(text::Anchor::MIN..buffer_position);
11777
11778 let mut lines = chunks.lines();
11779 let Some(line_at) = lines.next().filter(|line| !line.is_empty()) else {
11780 return vec![];
11781 };
11782
11783 let scope = language.map(|language| language.default_scope());
11784 let mut last_word = line_at
11785 .chars()
11786 .rev()
11787 .take_while(|c| char_kind(&scope, *c) == CharKind::Word)
11788 .collect::<String>();
11789 last_word = last_word.chars().rev().collect();
11790 let as_offset = text::ToOffset::to_offset(&buffer_position, &snapshot);
11791 let to_lsp = |point: &text::Anchor| {
11792 let end = text::ToPointUtf16::to_point_utf16(point, &snapshot);
11793 point_to_lsp(end)
11794 };
11795 let lsp_end = to_lsp(&buffer_position);
11796 snippets
11797 .into_iter()
11798 .filter_map(|snippet| {
11799 let matching_prefix = snippet
11800 .prefix
11801 .iter()
11802 .find(|prefix| prefix.starts_with(&last_word))?;
11803 let start = as_offset - last_word.len();
11804 let start = snapshot.anchor_before(start);
11805 let range = start..buffer_position;
11806 let lsp_start = to_lsp(&start);
11807 let lsp_range = lsp::Range {
11808 start: lsp_start,
11809 end: lsp_end,
11810 };
11811 Some(Completion {
11812 old_range: range,
11813 new_text: snippet.body.clone(),
11814 label: CodeLabel {
11815 text: matching_prefix.clone(),
11816 runs: vec![],
11817 filter_range: 0..matching_prefix.len(),
11818 },
11819 server_id: LanguageServerId(usize::MAX),
11820 documentation: snippet
11821 .description
11822 .clone()
11823 .map(|description| Documentation::SingleLine(description)),
11824 lsp_completion: lsp::CompletionItem {
11825 label: snippet.prefix.first().unwrap().clone(),
11826 kind: Some(CompletionItemKind::SNIPPET),
11827 label_details: snippet.description.as_ref().map(|description| {
11828 lsp::CompletionItemLabelDetails {
11829 detail: Some(description.clone()),
11830 description: None,
11831 }
11832 }),
11833 insert_text_format: Some(InsertTextFormat::SNIPPET),
11834 text_edit: Some(lsp::CompletionTextEdit::InsertAndReplace(
11835 lsp::InsertReplaceEdit {
11836 new_text: snippet.body.clone(),
11837 insert: lsp_range,
11838 replace: lsp_range,
11839 },
11840 )),
11841 filter_text: Some(snippet.body.clone()),
11842 sort_text: Some(char::MAX.to_string()),
11843 ..Default::default()
11844 },
11845 confirm: None,
11846 show_new_completions_on_confirm: false,
11847 })
11848 })
11849 .collect()
11850}
11851
11852impl CompletionProvider for Model<Project> {
11853 fn completions(
11854 &self,
11855 buffer: &Model<Buffer>,
11856 buffer_position: text::Anchor,
11857 options: CompletionContext,
11858 cx: &mut ViewContext<Editor>,
11859 ) -> Task<Result<Vec<Completion>>> {
11860 self.update(cx, |project, cx| {
11861 let snippets = snippet_completions(project, buffer, buffer_position, cx);
11862 let project_completions = project.completions(&buffer, buffer_position, options, cx);
11863 cx.background_executor().spawn(async move {
11864 let mut completions = project_completions.await?;
11865 //let snippets = snippets.into_iter().;
11866 completions.extend(snippets);
11867 Ok(completions)
11868 })
11869 })
11870 }
11871
11872 fn resolve_completions(
11873 &self,
11874 buffer: Model<Buffer>,
11875 completion_indices: Vec<usize>,
11876 completions: Arc<RwLock<Box<[Completion]>>>,
11877 cx: &mut ViewContext<Editor>,
11878 ) -> Task<Result<bool>> {
11879 self.update(cx, |project, cx| {
11880 project.resolve_completions(buffer, completion_indices, completions, cx)
11881 })
11882 }
11883
11884 fn apply_additional_edits_for_completion(
11885 &self,
11886 buffer: Model<Buffer>,
11887 completion: Completion,
11888 push_to_history: bool,
11889 cx: &mut ViewContext<Editor>,
11890 ) -> Task<Result<Option<language::Transaction>>> {
11891 self.update(cx, |project, cx| {
11892 project.apply_additional_edits_for_completion(buffer, completion, push_to_history, cx)
11893 })
11894 }
11895
11896 fn is_completion_trigger(
11897 &self,
11898 buffer: &Model<Buffer>,
11899 position: language::Anchor,
11900 text: &str,
11901 trigger_in_words: bool,
11902 cx: &mut ViewContext<Editor>,
11903 ) -> bool {
11904 if !EditorSettings::get_global(cx).show_completions_on_input {
11905 return false;
11906 }
11907
11908 let mut chars = text.chars();
11909 let char = if let Some(char) = chars.next() {
11910 char
11911 } else {
11912 return false;
11913 };
11914 if chars.next().is_some() {
11915 return false;
11916 }
11917
11918 let buffer = buffer.read(cx);
11919 let scope = buffer.snapshot().language_scope_at(position);
11920 if trigger_in_words && char_kind(&scope, char) == CharKind::Word {
11921 return true;
11922 }
11923
11924 buffer
11925 .completion_triggers()
11926 .iter()
11927 .any(|string| string == text)
11928 }
11929}
11930
11931fn inlay_hint_settings(
11932 location: Anchor,
11933 snapshot: &MultiBufferSnapshot,
11934 cx: &mut ViewContext<'_, Editor>,
11935) -> InlayHintSettings {
11936 let file = snapshot.file_at(location);
11937 let language = snapshot.language_at(location);
11938 let settings = all_language_settings(file, cx);
11939 settings
11940 .language(language.map(|l| l.name()).as_deref())
11941 .inlay_hints
11942}
11943
11944fn consume_contiguous_rows(
11945 contiguous_row_selections: &mut Vec<Selection<Point>>,
11946 selection: &Selection<Point>,
11947 display_map: &DisplaySnapshot,
11948 selections: &mut std::iter::Peekable<std::slice::Iter<Selection<Point>>>,
11949) -> (MultiBufferRow, MultiBufferRow) {
11950 contiguous_row_selections.push(selection.clone());
11951 let start_row = MultiBufferRow(selection.start.row);
11952 let mut end_row = ending_row(selection, display_map);
11953
11954 while let Some(next_selection) = selections.peek() {
11955 if next_selection.start.row <= end_row.0 {
11956 end_row = ending_row(next_selection, display_map);
11957 contiguous_row_selections.push(selections.next().unwrap().clone());
11958 } else {
11959 break;
11960 }
11961 }
11962 (start_row, end_row)
11963}
11964
11965fn ending_row(next_selection: &Selection<Point>, display_map: &DisplaySnapshot) -> MultiBufferRow {
11966 if next_selection.end.column > 0 || next_selection.is_empty() {
11967 MultiBufferRow(display_map.next_line_boundary(next_selection.end).0.row + 1)
11968 } else {
11969 MultiBufferRow(next_selection.end.row)
11970 }
11971}
11972
11973impl EditorSnapshot {
11974 pub fn remote_selections_in_range<'a>(
11975 &'a self,
11976 range: &'a Range<Anchor>,
11977 collaboration_hub: &dyn CollaborationHub,
11978 cx: &'a AppContext,
11979 ) -> impl 'a + Iterator<Item = RemoteSelection> {
11980 let participant_names = collaboration_hub.user_names(cx);
11981 let participant_indices = collaboration_hub.user_participant_indices(cx);
11982 let collaborators_by_peer_id = collaboration_hub.collaborators(cx);
11983 let collaborators_by_replica_id = collaborators_by_peer_id
11984 .iter()
11985 .map(|(_, collaborator)| (collaborator.replica_id, collaborator))
11986 .collect::<HashMap<_, _>>();
11987 self.buffer_snapshot
11988 .selections_in_range(range, false)
11989 .filter_map(move |(replica_id, line_mode, cursor_shape, selection)| {
11990 let collaborator = collaborators_by_replica_id.get(&replica_id)?;
11991 let participant_index = participant_indices.get(&collaborator.user_id).copied();
11992 let user_name = participant_names.get(&collaborator.user_id).cloned();
11993 Some(RemoteSelection {
11994 replica_id,
11995 selection,
11996 cursor_shape,
11997 line_mode,
11998 participant_index,
11999 peer_id: collaborator.peer_id,
12000 user_name,
12001 })
12002 })
12003 }
12004
12005 pub fn language_at<T: ToOffset>(&self, position: T) -> Option<&Arc<Language>> {
12006 self.display_snapshot.buffer_snapshot.language_at(position)
12007 }
12008
12009 pub fn is_focused(&self) -> bool {
12010 self.is_focused
12011 }
12012
12013 pub fn placeholder_text(&self) -> Option<&Arc<str>> {
12014 self.placeholder_text.as_ref()
12015 }
12016
12017 pub fn scroll_position(&self) -> gpui::Point<f32> {
12018 self.scroll_anchor.scroll_position(&self.display_snapshot)
12019 }
12020
12021 pub fn gutter_dimensions(
12022 &self,
12023 font_id: FontId,
12024 font_size: Pixels,
12025 em_width: Pixels,
12026 max_line_number_width: Pixels,
12027 cx: &AppContext,
12028 ) -> GutterDimensions {
12029 if !self.show_gutter {
12030 return GutterDimensions::default();
12031 }
12032 let descent = cx.text_system().descent(font_id, font_size);
12033
12034 let show_git_gutter = self.show_git_diff_gutter.unwrap_or_else(|| {
12035 matches!(
12036 ProjectSettings::get_global(cx).git.git_gutter,
12037 Some(GitGutterSetting::TrackedFiles)
12038 )
12039 });
12040 let gutter_settings = EditorSettings::get_global(cx).gutter;
12041 let show_line_numbers = self
12042 .show_line_numbers
12043 .unwrap_or(gutter_settings.line_numbers);
12044 let line_gutter_width = if show_line_numbers {
12045 // Avoid flicker-like gutter resizes when the line number gains another digit and only resize the gutter on files with N*10^5 lines.
12046 let min_width_for_number_on_gutter = em_width * 4.0;
12047 max_line_number_width.max(min_width_for_number_on_gutter)
12048 } else {
12049 0.0.into()
12050 };
12051
12052 let show_code_actions = self
12053 .show_code_actions
12054 .unwrap_or(gutter_settings.code_actions);
12055
12056 let show_runnables = self.show_runnables.unwrap_or(gutter_settings.runnables);
12057
12058 let git_blame_entries_width = self
12059 .render_git_blame_gutter
12060 .then_some(em_width * GIT_BLAME_GUTTER_WIDTH_CHARS);
12061
12062 let mut left_padding = git_blame_entries_width.unwrap_or(Pixels::ZERO);
12063 left_padding += if show_code_actions || show_runnables {
12064 em_width * 3.0
12065 } else if show_git_gutter && show_line_numbers {
12066 em_width * 2.0
12067 } else if show_git_gutter || show_line_numbers {
12068 em_width
12069 } else {
12070 px(0.)
12071 };
12072
12073 let right_padding = if gutter_settings.folds && show_line_numbers {
12074 em_width * 4.0
12075 } else if gutter_settings.folds {
12076 em_width * 3.0
12077 } else if show_line_numbers {
12078 em_width
12079 } else {
12080 px(0.)
12081 };
12082
12083 GutterDimensions {
12084 left_padding,
12085 right_padding,
12086 width: line_gutter_width + left_padding + right_padding,
12087 margin: -descent,
12088 git_blame_entries_width,
12089 }
12090 }
12091
12092 pub fn render_fold_toggle(
12093 &self,
12094 buffer_row: MultiBufferRow,
12095 row_contains_cursor: bool,
12096 editor: View<Editor>,
12097 cx: &mut WindowContext,
12098 ) -> Option<AnyElement> {
12099 let folded = self.is_line_folded(buffer_row);
12100
12101 if let Some(crease) = self
12102 .crease_snapshot
12103 .query_row(buffer_row, &self.buffer_snapshot)
12104 {
12105 let toggle_callback = Arc::new(move |folded, cx: &mut WindowContext| {
12106 if folded {
12107 editor.update(cx, |editor, cx| {
12108 editor.fold_at(&crate::FoldAt { buffer_row }, cx)
12109 });
12110 } else {
12111 editor.update(cx, |editor, cx| {
12112 editor.unfold_at(&crate::UnfoldAt { buffer_row }, cx)
12113 });
12114 }
12115 });
12116
12117 Some((crease.render_toggle)(
12118 buffer_row,
12119 folded,
12120 toggle_callback,
12121 cx,
12122 ))
12123 } else if folded
12124 || (self.starts_indent(buffer_row) && (row_contains_cursor || self.gutter_hovered))
12125 {
12126 Some(
12127 Disclosure::new(("indent-fold-indicator", buffer_row.0), !folded)
12128 .selected(folded)
12129 .on_click(cx.listener_for(&editor, move |this, _e, cx| {
12130 if folded {
12131 this.unfold_at(&UnfoldAt { buffer_row }, cx);
12132 } else {
12133 this.fold_at(&FoldAt { buffer_row }, cx);
12134 }
12135 }))
12136 .into_any_element(),
12137 )
12138 } else {
12139 None
12140 }
12141 }
12142
12143 pub fn render_crease_trailer(
12144 &self,
12145 buffer_row: MultiBufferRow,
12146 cx: &mut WindowContext,
12147 ) -> Option<AnyElement> {
12148 let folded = self.is_line_folded(buffer_row);
12149 let crease = self
12150 .crease_snapshot
12151 .query_row(buffer_row, &self.buffer_snapshot)?;
12152 Some((crease.render_trailer)(buffer_row, folded, cx))
12153 }
12154}
12155
12156impl Deref for EditorSnapshot {
12157 type Target = DisplaySnapshot;
12158
12159 fn deref(&self) -> &Self::Target {
12160 &self.display_snapshot
12161 }
12162}
12163
12164#[derive(Clone, Debug, PartialEq, Eq)]
12165pub enum EditorEvent {
12166 InputIgnored {
12167 text: Arc<str>,
12168 },
12169 InputHandled {
12170 utf16_range_to_replace: Option<Range<isize>>,
12171 text: Arc<str>,
12172 },
12173 ExcerptsAdded {
12174 buffer: Model<Buffer>,
12175 predecessor: ExcerptId,
12176 excerpts: Vec<(ExcerptId, ExcerptRange<language::Anchor>)>,
12177 },
12178 ExcerptsRemoved {
12179 ids: Vec<ExcerptId>,
12180 },
12181 ExcerptsEdited {
12182 ids: Vec<ExcerptId>,
12183 },
12184 ExcerptsExpanded {
12185 ids: Vec<ExcerptId>,
12186 },
12187 BufferEdited,
12188 Edited {
12189 transaction_id: clock::Lamport,
12190 },
12191 Reparsed(BufferId),
12192 Focused,
12193 Blurred,
12194 DirtyChanged,
12195 Saved,
12196 TitleChanged,
12197 DiffBaseChanged,
12198 SelectionsChanged {
12199 local: bool,
12200 },
12201 ScrollPositionChanged {
12202 local: bool,
12203 autoscroll: bool,
12204 },
12205 Closed,
12206 TransactionUndone {
12207 transaction_id: clock::Lamport,
12208 },
12209 TransactionBegun {
12210 transaction_id: clock::Lamport,
12211 },
12212}
12213
12214impl EventEmitter<EditorEvent> for Editor {}
12215
12216impl FocusableView for Editor {
12217 fn focus_handle(&self, _cx: &AppContext) -> FocusHandle {
12218 self.focus_handle.clone()
12219 }
12220}
12221
12222impl Render for Editor {
12223 fn render<'a>(&mut self, cx: &mut ViewContext<'a, Self>) -> impl IntoElement {
12224 let settings = ThemeSettings::get_global(cx);
12225
12226 let text_style = match self.mode {
12227 EditorMode::SingleLine { .. } | EditorMode::AutoHeight { .. } => TextStyle {
12228 color: cx.theme().colors().editor_foreground,
12229 font_family: settings.ui_font.family.clone(),
12230 font_features: settings.ui_font.features.clone(),
12231 font_size: rems(0.875).into(),
12232 font_weight: settings.ui_font.weight,
12233 font_style: FontStyle::Normal,
12234 line_height: relative(settings.buffer_line_height.value()),
12235 background_color: None,
12236 underline: None,
12237 strikethrough: None,
12238 white_space: WhiteSpace::Normal,
12239 },
12240 EditorMode::Full => TextStyle {
12241 color: cx.theme().colors().editor_foreground,
12242 font_family: settings.buffer_font.family.clone(),
12243 font_features: settings.buffer_font.features.clone(),
12244 font_size: settings.buffer_font_size(cx).into(),
12245 font_weight: settings.buffer_font.weight,
12246 font_style: FontStyle::Normal,
12247 line_height: relative(settings.buffer_line_height.value()),
12248 background_color: None,
12249 underline: None,
12250 strikethrough: None,
12251 white_space: WhiteSpace::Normal,
12252 },
12253 };
12254
12255 let background = match self.mode {
12256 EditorMode::SingleLine { .. } => cx.theme().system().transparent,
12257 EditorMode::AutoHeight { max_lines: _ } => cx.theme().system().transparent,
12258 EditorMode::Full => cx.theme().colors().editor_background,
12259 };
12260
12261 EditorElement::new(
12262 cx.view(),
12263 EditorStyle {
12264 background,
12265 local_player: cx.theme().players().local(),
12266 text: text_style,
12267 scrollbar_width: EditorElement::SCROLLBAR_WIDTH,
12268 syntax: cx.theme().syntax().clone(),
12269 status: cx.theme().status().clone(),
12270 inlay_hints_style: HighlightStyle {
12271 color: Some(cx.theme().status().hint),
12272 ..HighlightStyle::default()
12273 },
12274 suggestions_style: HighlightStyle {
12275 color: Some(cx.theme().status().predictive),
12276 ..HighlightStyle::default()
12277 },
12278 },
12279 )
12280 }
12281}
12282
12283impl ViewInputHandler for Editor {
12284 fn text_for_range(
12285 &mut self,
12286 range_utf16: Range<usize>,
12287 cx: &mut ViewContext<Self>,
12288 ) -> Option<String> {
12289 Some(
12290 self.buffer
12291 .read(cx)
12292 .read(cx)
12293 .text_for_range(OffsetUtf16(range_utf16.start)..OffsetUtf16(range_utf16.end))
12294 .collect(),
12295 )
12296 }
12297
12298 fn selected_text_range(&mut self, cx: &mut ViewContext<Self>) -> Option<Range<usize>> {
12299 // Prevent the IME menu from appearing when holding down an alphabetic key
12300 // while input is disabled.
12301 if !self.input_enabled {
12302 return None;
12303 }
12304
12305 let range = self.selections.newest::<OffsetUtf16>(cx).range();
12306 Some(range.start.0..range.end.0)
12307 }
12308
12309 fn marked_text_range(&self, cx: &mut ViewContext<Self>) -> Option<Range<usize>> {
12310 let snapshot = self.buffer.read(cx).read(cx);
12311 let range = self.text_highlights::<InputComposition>(cx)?.1.get(0)?;
12312 Some(range.start.to_offset_utf16(&snapshot).0..range.end.to_offset_utf16(&snapshot).0)
12313 }
12314
12315 fn unmark_text(&mut self, cx: &mut ViewContext<Self>) {
12316 self.clear_highlights::<InputComposition>(cx);
12317 self.ime_transaction.take();
12318 }
12319
12320 fn replace_text_in_range(
12321 &mut self,
12322 range_utf16: Option<Range<usize>>,
12323 text: &str,
12324 cx: &mut ViewContext<Self>,
12325 ) {
12326 if !self.input_enabled {
12327 cx.emit(EditorEvent::InputIgnored { text: text.into() });
12328 return;
12329 }
12330
12331 self.transact(cx, |this, cx| {
12332 let new_selected_ranges = if let Some(range_utf16) = range_utf16 {
12333 let range_utf16 = OffsetUtf16(range_utf16.start)..OffsetUtf16(range_utf16.end);
12334 Some(this.selection_replacement_ranges(range_utf16, cx))
12335 } else {
12336 this.marked_text_ranges(cx)
12337 };
12338
12339 let range_to_replace = new_selected_ranges.as_ref().and_then(|ranges_to_replace| {
12340 let newest_selection_id = this.selections.newest_anchor().id;
12341 this.selections
12342 .all::<OffsetUtf16>(cx)
12343 .iter()
12344 .zip(ranges_to_replace.iter())
12345 .find_map(|(selection, range)| {
12346 if selection.id == newest_selection_id {
12347 Some(
12348 (range.start.0 as isize - selection.head().0 as isize)
12349 ..(range.end.0 as isize - selection.head().0 as isize),
12350 )
12351 } else {
12352 None
12353 }
12354 })
12355 });
12356
12357 cx.emit(EditorEvent::InputHandled {
12358 utf16_range_to_replace: range_to_replace,
12359 text: text.into(),
12360 });
12361
12362 if let Some(new_selected_ranges) = new_selected_ranges {
12363 this.change_selections(None, cx, |selections| {
12364 selections.select_ranges(new_selected_ranges)
12365 });
12366 this.backspace(&Default::default(), cx);
12367 }
12368
12369 this.handle_input(text, cx);
12370 });
12371
12372 if let Some(transaction) = self.ime_transaction {
12373 self.buffer.update(cx, |buffer, cx| {
12374 buffer.group_until_transaction(transaction, cx);
12375 });
12376 }
12377
12378 self.unmark_text(cx);
12379 }
12380
12381 fn replace_and_mark_text_in_range(
12382 &mut self,
12383 range_utf16: Option<Range<usize>>,
12384 text: &str,
12385 new_selected_range_utf16: Option<Range<usize>>,
12386 cx: &mut ViewContext<Self>,
12387 ) {
12388 if !self.input_enabled {
12389 return;
12390 }
12391
12392 let transaction = self.transact(cx, |this, cx| {
12393 let ranges_to_replace = if let Some(mut marked_ranges) = this.marked_text_ranges(cx) {
12394 let snapshot = this.buffer.read(cx).read(cx);
12395 if let Some(relative_range_utf16) = range_utf16.as_ref() {
12396 for marked_range in &mut marked_ranges {
12397 marked_range.end.0 = marked_range.start.0 + relative_range_utf16.end;
12398 marked_range.start.0 += relative_range_utf16.start;
12399 marked_range.start =
12400 snapshot.clip_offset_utf16(marked_range.start, Bias::Left);
12401 marked_range.end =
12402 snapshot.clip_offset_utf16(marked_range.end, Bias::Right);
12403 }
12404 }
12405 Some(marked_ranges)
12406 } else if let Some(range_utf16) = range_utf16 {
12407 let range_utf16 = OffsetUtf16(range_utf16.start)..OffsetUtf16(range_utf16.end);
12408 Some(this.selection_replacement_ranges(range_utf16, cx))
12409 } else {
12410 None
12411 };
12412
12413 let range_to_replace = ranges_to_replace.as_ref().and_then(|ranges_to_replace| {
12414 let newest_selection_id = this.selections.newest_anchor().id;
12415 this.selections
12416 .all::<OffsetUtf16>(cx)
12417 .iter()
12418 .zip(ranges_to_replace.iter())
12419 .find_map(|(selection, range)| {
12420 if selection.id == newest_selection_id {
12421 Some(
12422 (range.start.0 as isize - selection.head().0 as isize)
12423 ..(range.end.0 as isize - selection.head().0 as isize),
12424 )
12425 } else {
12426 None
12427 }
12428 })
12429 });
12430
12431 cx.emit(EditorEvent::InputHandled {
12432 utf16_range_to_replace: range_to_replace,
12433 text: text.into(),
12434 });
12435
12436 if let Some(ranges) = ranges_to_replace {
12437 this.change_selections(None, cx, |s| s.select_ranges(ranges));
12438 }
12439
12440 let marked_ranges = {
12441 let snapshot = this.buffer.read(cx).read(cx);
12442 this.selections
12443 .disjoint_anchors()
12444 .iter()
12445 .map(|selection| {
12446 selection.start.bias_left(&snapshot)..selection.end.bias_right(&snapshot)
12447 })
12448 .collect::<Vec<_>>()
12449 };
12450
12451 if text.is_empty() {
12452 this.unmark_text(cx);
12453 } else {
12454 this.highlight_text::<InputComposition>(
12455 marked_ranges.clone(),
12456 HighlightStyle {
12457 underline: Some(UnderlineStyle {
12458 thickness: px(1.),
12459 color: None,
12460 wavy: false,
12461 }),
12462 ..Default::default()
12463 },
12464 cx,
12465 );
12466 }
12467
12468 // Disable auto-closing when composing text (i.e. typing a `"` on a Brazilian keyboard)
12469 let use_autoclose = this.use_autoclose;
12470 let use_auto_surround = this.use_auto_surround;
12471 this.set_use_autoclose(false);
12472 this.set_use_auto_surround(false);
12473 this.handle_input(text, cx);
12474 this.set_use_autoclose(use_autoclose);
12475 this.set_use_auto_surround(use_auto_surround);
12476
12477 if let Some(new_selected_range) = new_selected_range_utf16 {
12478 let snapshot = this.buffer.read(cx).read(cx);
12479 let new_selected_ranges = marked_ranges
12480 .into_iter()
12481 .map(|marked_range| {
12482 let insertion_start = marked_range.start.to_offset_utf16(&snapshot).0;
12483 let new_start = OffsetUtf16(new_selected_range.start + insertion_start);
12484 let new_end = OffsetUtf16(new_selected_range.end + insertion_start);
12485 snapshot.clip_offset_utf16(new_start, Bias::Left)
12486 ..snapshot.clip_offset_utf16(new_end, Bias::Right)
12487 })
12488 .collect::<Vec<_>>();
12489
12490 drop(snapshot);
12491 this.change_selections(None, cx, |selections| {
12492 selections.select_ranges(new_selected_ranges)
12493 });
12494 }
12495 });
12496
12497 self.ime_transaction = self.ime_transaction.or(transaction);
12498 if let Some(transaction) = self.ime_transaction {
12499 self.buffer.update(cx, |buffer, cx| {
12500 buffer.group_until_transaction(transaction, cx);
12501 });
12502 }
12503
12504 if self.text_highlights::<InputComposition>(cx).is_none() {
12505 self.ime_transaction.take();
12506 }
12507 }
12508
12509 fn bounds_for_range(
12510 &mut self,
12511 range_utf16: Range<usize>,
12512 element_bounds: gpui::Bounds<Pixels>,
12513 cx: &mut ViewContext<Self>,
12514 ) -> Option<gpui::Bounds<Pixels>> {
12515 let text_layout_details = self.text_layout_details(cx);
12516 let style = &text_layout_details.editor_style;
12517 let font_id = cx.text_system().resolve_font(&style.text.font());
12518 let font_size = style.text.font_size.to_pixels(cx.rem_size());
12519 let line_height = style.text.line_height_in_pixels(cx.rem_size());
12520
12521 let em_width = cx
12522 .text_system()
12523 .typographic_bounds(font_id, font_size, 'm')
12524 .unwrap()
12525 .size
12526 .width;
12527
12528 let snapshot = self.snapshot(cx);
12529 let scroll_position = snapshot.scroll_position();
12530 let scroll_left = scroll_position.x * em_width;
12531
12532 let start = OffsetUtf16(range_utf16.start).to_display_point(&snapshot);
12533 let x = snapshot.x_for_display_point(start, &text_layout_details) - scroll_left
12534 + self.gutter_dimensions.width;
12535 let y = line_height * (start.row().as_f32() - scroll_position.y);
12536
12537 Some(Bounds {
12538 origin: element_bounds.origin + point(x, y),
12539 size: size(em_width, line_height),
12540 })
12541 }
12542}
12543
12544trait SelectionExt {
12545 fn display_range(&self, map: &DisplaySnapshot) -> Range<DisplayPoint>;
12546 fn spanned_rows(
12547 &self,
12548 include_end_if_at_line_start: bool,
12549 map: &DisplaySnapshot,
12550 ) -> Range<MultiBufferRow>;
12551}
12552
12553impl<T: ToPoint + ToOffset> SelectionExt for Selection<T> {
12554 fn display_range(&self, map: &DisplaySnapshot) -> Range<DisplayPoint> {
12555 let start = self
12556 .start
12557 .to_point(&map.buffer_snapshot)
12558 .to_display_point(map);
12559 let end = self
12560 .end
12561 .to_point(&map.buffer_snapshot)
12562 .to_display_point(map);
12563 if self.reversed {
12564 end..start
12565 } else {
12566 start..end
12567 }
12568 }
12569
12570 fn spanned_rows(
12571 &self,
12572 include_end_if_at_line_start: bool,
12573 map: &DisplaySnapshot,
12574 ) -> Range<MultiBufferRow> {
12575 let start = self.start.to_point(&map.buffer_snapshot);
12576 let mut end = self.end.to_point(&map.buffer_snapshot);
12577 if !include_end_if_at_line_start && start.row != end.row && end.column == 0 {
12578 end.row -= 1;
12579 }
12580
12581 let buffer_start = map.prev_line_boundary(start).0;
12582 let buffer_end = map.next_line_boundary(end).0;
12583 MultiBufferRow(buffer_start.row)..MultiBufferRow(buffer_end.row + 1)
12584 }
12585}
12586
12587impl<T: InvalidationRegion> InvalidationStack<T> {
12588 fn invalidate<S>(&mut self, selections: &[Selection<S>], buffer: &MultiBufferSnapshot)
12589 where
12590 S: Clone + ToOffset,
12591 {
12592 while let Some(region) = self.last() {
12593 let all_selections_inside_invalidation_ranges =
12594 if selections.len() == region.ranges().len() {
12595 selections
12596 .iter()
12597 .zip(region.ranges().iter().map(|r| r.to_offset(buffer)))
12598 .all(|(selection, invalidation_range)| {
12599 let head = selection.head().to_offset(buffer);
12600 invalidation_range.start <= head && invalidation_range.end >= head
12601 })
12602 } else {
12603 false
12604 };
12605
12606 if all_selections_inside_invalidation_ranges {
12607 break;
12608 } else {
12609 self.pop();
12610 }
12611 }
12612 }
12613}
12614
12615impl<T> Default for InvalidationStack<T> {
12616 fn default() -> Self {
12617 Self(Default::default())
12618 }
12619}
12620
12621impl<T> Deref for InvalidationStack<T> {
12622 type Target = Vec<T>;
12623
12624 fn deref(&self) -> &Self::Target {
12625 &self.0
12626 }
12627}
12628
12629impl<T> DerefMut for InvalidationStack<T> {
12630 fn deref_mut(&mut self) -> &mut Self::Target {
12631 &mut self.0
12632 }
12633}
12634
12635impl InvalidationRegion for SnippetState {
12636 fn ranges(&self) -> &[Range<Anchor>] {
12637 &self.ranges[self.active_index]
12638 }
12639}
12640
12641pub fn diagnostic_block_renderer(diagnostic: Diagnostic, _is_valid: bool) -> RenderBlock {
12642 let (text_without_backticks, code_ranges) = highlight_diagnostic_message(&diagnostic);
12643
12644 Box::new(move |cx: &mut BlockContext| {
12645 let group_id: SharedString = cx.block_id.to_string().into();
12646
12647 let mut text_style = cx.text_style().clone();
12648 text_style.color = diagnostic_style(diagnostic.severity, cx.theme().status());
12649 let theme_settings = ThemeSettings::get_global(cx);
12650 text_style.font_family = theme_settings.buffer_font.family.clone();
12651 text_style.font_style = theme_settings.buffer_font.style;
12652 text_style.font_features = theme_settings.buffer_font.features.clone();
12653 text_style.font_weight = theme_settings.buffer_font.weight;
12654
12655 let multi_line_diagnostic = diagnostic.message.contains('\n');
12656
12657 let buttons = |diagnostic: &Diagnostic, block_id: usize| {
12658 if multi_line_diagnostic {
12659 v_flex()
12660 } else {
12661 h_flex()
12662 }
12663 .children(diagnostic.is_primary.then(|| {
12664 IconButton::new(("close-block", block_id), IconName::XCircle)
12665 .icon_color(Color::Muted)
12666 .size(ButtonSize::Compact)
12667 .style(ButtonStyle::Transparent)
12668 .visible_on_hover(group_id.clone())
12669 .on_click(move |_click, cx| cx.dispatch_action(Box::new(Cancel)))
12670 .tooltip(|cx| Tooltip::for_action("Close Diagnostics", &Cancel, cx))
12671 }))
12672 .child(
12673 IconButton::new(("copy-block", block_id), IconName::Copy)
12674 .icon_color(Color::Muted)
12675 .size(ButtonSize::Compact)
12676 .style(ButtonStyle::Transparent)
12677 .visible_on_hover(group_id.clone())
12678 .on_click({
12679 let message = diagnostic.message.clone();
12680 move |_click, cx| cx.write_to_clipboard(ClipboardItem::new(message.clone()))
12681 })
12682 .tooltip(|cx| Tooltip::text("Copy diagnostic message", cx)),
12683 )
12684 };
12685
12686 let icon_size = buttons(&diagnostic, cx.block_id)
12687 .into_any_element()
12688 .layout_as_root(AvailableSpace::min_size(), cx);
12689
12690 h_flex()
12691 .id(cx.block_id)
12692 .group(group_id.clone())
12693 .relative()
12694 .size_full()
12695 .pl(cx.gutter_dimensions.width)
12696 .w(cx.max_width + cx.gutter_dimensions.width)
12697 .child(
12698 div()
12699 .flex()
12700 .w(cx.anchor_x - cx.gutter_dimensions.width - icon_size.width)
12701 .flex_shrink(),
12702 )
12703 .child(buttons(&diagnostic, cx.block_id))
12704 .child(div().flex().flex_shrink_0().child(
12705 StyledText::new(text_without_backticks.clone()).with_highlights(
12706 &text_style,
12707 code_ranges.iter().map(|range| {
12708 (
12709 range.clone(),
12710 HighlightStyle {
12711 font_weight: Some(FontWeight::BOLD),
12712 ..Default::default()
12713 },
12714 )
12715 }),
12716 ),
12717 ))
12718 .into_any_element()
12719 })
12720}
12721
12722pub fn highlight_diagnostic_message(diagnostic: &Diagnostic) -> (SharedString, Vec<Range<usize>>) {
12723 let mut text_without_backticks = String::new();
12724 let mut code_ranges = Vec::new();
12725
12726 if let Some(source) = &diagnostic.source {
12727 text_without_backticks.push_str(&source);
12728 code_ranges.push(0..source.len());
12729 text_without_backticks.push_str(": ");
12730 }
12731
12732 let mut prev_offset = 0;
12733 let mut in_code_block = false;
12734 for (ix, _) in diagnostic
12735 .message
12736 .match_indices('`')
12737 .chain([(diagnostic.message.len(), "")])
12738 {
12739 let prev_len = text_without_backticks.len();
12740 text_without_backticks.push_str(&diagnostic.message[prev_offset..ix]);
12741 prev_offset = ix + 1;
12742 if in_code_block {
12743 code_ranges.push(prev_len..text_without_backticks.len());
12744 }
12745 in_code_block = !in_code_block;
12746 }
12747
12748 (text_without_backticks.into(), code_ranges)
12749}
12750
12751fn diagnostic_style(severity: DiagnosticSeverity, colors: &StatusColors) -> Hsla {
12752 match severity {
12753 DiagnosticSeverity::ERROR => colors.error,
12754 DiagnosticSeverity::WARNING => colors.warning,
12755 DiagnosticSeverity::INFORMATION => colors.info,
12756 DiagnosticSeverity::HINT => colors.info,
12757 _ => colors.ignored,
12758 }
12759}
12760
12761pub fn styled_runs_for_code_label<'a>(
12762 label: &'a CodeLabel,
12763 syntax_theme: &'a theme::SyntaxTheme,
12764) -> impl 'a + Iterator<Item = (Range<usize>, HighlightStyle)> {
12765 let fade_out = HighlightStyle {
12766 fade_out: Some(0.35),
12767 ..Default::default()
12768 };
12769
12770 let mut prev_end = label.filter_range.end;
12771 label
12772 .runs
12773 .iter()
12774 .enumerate()
12775 .flat_map(move |(ix, (range, highlight_id))| {
12776 let style = if let Some(style) = highlight_id.style(syntax_theme) {
12777 style
12778 } else {
12779 return Default::default();
12780 };
12781 let mut muted_style = style;
12782 muted_style.highlight(fade_out);
12783
12784 let mut runs = SmallVec::<[(Range<usize>, HighlightStyle); 3]>::new();
12785 if range.start >= label.filter_range.end {
12786 if range.start > prev_end {
12787 runs.push((prev_end..range.start, fade_out));
12788 }
12789 runs.push((range.clone(), muted_style));
12790 } else if range.end <= label.filter_range.end {
12791 runs.push((range.clone(), style));
12792 } else {
12793 runs.push((range.start..label.filter_range.end, style));
12794 runs.push((label.filter_range.end..range.end, muted_style));
12795 }
12796 prev_end = cmp::max(prev_end, range.end);
12797
12798 if ix + 1 == label.runs.len() && label.text.len() > prev_end {
12799 runs.push((prev_end..label.text.len(), fade_out));
12800 }
12801
12802 runs
12803 })
12804}
12805
12806pub(crate) fn split_words(text: &str) -> impl std::iter::Iterator<Item = &str> + '_ {
12807 let mut prev_index = 0;
12808 let mut prev_codepoint: Option<char> = None;
12809 text.char_indices()
12810 .chain([(text.len(), '\0')])
12811 .filter_map(move |(index, codepoint)| {
12812 let prev_codepoint = prev_codepoint.replace(codepoint)?;
12813 let is_boundary = index == text.len()
12814 || !prev_codepoint.is_uppercase() && codepoint.is_uppercase()
12815 || !prev_codepoint.is_alphanumeric() && codepoint.is_alphanumeric();
12816 if is_boundary {
12817 let chunk = &text[prev_index..index];
12818 prev_index = index;
12819 Some(chunk)
12820 } else {
12821 None
12822 }
12823 })
12824}
12825
12826pub trait RangeToAnchorExt {
12827 fn to_anchors(self, snapshot: &MultiBufferSnapshot) -> Range<Anchor>;
12828}
12829
12830impl<T: ToOffset> RangeToAnchorExt for Range<T> {
12831 fn to_anchors(self, snapshot: &MultiBufferSnapshot) -> Range<Anchor> {
12832 let start_offset = self.start.to_offset(snapshot);
12833 let end_offset = self.end.to_offset(snapshot);
12834 if start_offset == end_offset {
12835 snapshot.anchor_before(start_offset)..snapshot.anchor_before(end_offset)
12836 } else {
12837 snapshot.anchor_after(self.start)..snapshot.anchor_before(self.end)
12838 }
12839 }
12840}
12841
12842pub trait RowExt {
12843 fn as_f32(&self) -> f32;
12844
12845 fn next_row(&self) -> Self;
12846
12847 fn previous_row(&self) -> Self;
12848
12849 fn minus(&self, other: Self) -> u32;
12850}
12851
12852impl RowExt for DisplayRow {
12853 fn as_f32(&self) -> f32 {
12854 self.0 as f32
12855 }
12856
12857 fn next_row(&self) -> Self {
12858 Self(self.0 + 1)
12859 }
12860
12861 fn previous_row(&self) -> Self {
12862 Self(self.0.saturating_sub(1))
12863 }
12864
12865 fn minus(&self, other: Self) -> u32 {
12866 self.0 - other.0
12867 }
12868}
12869
12870impl RowExt for MultiBufferRow {
12871 fn as_f32(&self) -> f32 {
12872 self.0 as f32
12873 }
12874
12875 fn next_row(&self) -> Self {
12876 Self(self.0 + 1)
12877 }
12878
12879 fn previous_row(&self) -> Self {
12880 Self(self.0.saturating_sub(1))
12881 }
12882
12883 fn minus(&self, other: Self) -> u32 {
12884 self.0 - other.0
12885 }
12886}
12887
12888trait RowRangeExt {
12889 type Row;
12890
12891 fn len(&self) -> usize;
12892
12893 fn iter_rows(&self) -> impl DoubleEndedIterator<Item = Self::Row>;
12894}
12895
12896impl RowRangeExt for Range<MultiBufferRow> {
12897 type Row = MultiBufferRow;
12898
12899 fn len(&self) -> usize {
12900 (self.end.0 - self.start.0) as usize
12901 }
12902
12903 fn iter_rows(&self) -> impl DoubleEndedIterator<Item = MultiBufferRow> {
12904 (self.start.0..self.end.0).map(MultiBufferRow)
12905 }
12906}
12907
12908impl RowRangeExt for Range<DisplayRow> {
12909 type Row = DisplayRow;
12910
12911 fn len(&self) -> usize {
12912 (self.end.0 - self.start.0) as usize
12913 }
12914
12915 fn iter_rows(&self) -> impl DoubleEndedIterator<Item = DisplayRow> {
12916 (self.start.0..self.end.0).map(DisplayRow)
12917 }
12918}
12919
12920fn hunk_status(hunk: &DiffHunk<MultiBufferRow>) -> DiffHunkStatus {
12921 if hunk.diff_base_byte_range.is_empty() {
12922 DiffHunkStatus::Added
12923 } else if hunk.associated_range.is_empty() {
12924 DiffHunkStatus::Removed
12925 } else {
12926 DiffHunkStatus::Modified
12927 }
12928}