1#![allow(rustdoc::private_intra_doc_links)]
2//! This is the place where everything editor-related is stored (data-wise) and displayed (ui-wise).
3//! The main point of interest in this crate is [`Editor`] type, which is used in every other Zed part as a user input element.
4//! It comes in different flavors: single line, multiline and a fixed height one.
5//!
6//! Editor contains of multiple large submodules:
7//! * [`element`] — the place where all rendering happens
8//! * [`display_map`] - chunks up text in the editor into the logical blocks, establishes coordinates and mapping between each of them.
9//! Contains all metadata related to text transformations (folds, fake inlay text insertions, soft wraps, tab markup, etc.).
10//! * [`inlay_hint_cache`] - is a storage of inlay hints out of LSP requests, responsible for querying LSP and updating `display_map`'s state accordingly.
11//!
12//! All other submodules and structs are mostly concerned with holding editor data about the way it displays current buffer region(s).
13//!
14//! If you're looking to improve Vim mode, you should check out Vim crate that wraps Editor and overrides its behaviour.
15pub mod actions;
16mod blame_entry_tooltip;
17mod blink_manager;
18mod debounced_delay;
19pub mod display_map;
20mod editor_settings;
21mod element;
22mod git;
23mod highlight_matching_bracket;
24mod hover_links;
25mod hover_popover;
26mod hunk_diff;
27mod indent_guides;
28mod inlay_hint_cache;
29mod inline_completion_provider;
30pub mod items;
31mod linked_editing_ranges;
32mod mouse_context_menu;
33pub mod movement;
34mod persistence;
35mod rust_analyzer_ext;
36pub mod scroll;
37mod selections_collection;
38pub mod tasks;
39
40#[cfg(test)]
41mod editor_tests;
42#[cfg(any(test, feature = "test-support"))]
43pub mod test;
44use ::git::diff::{DiffHunk, DiffHunkStatus};
45use ::git::{parse_git_remote_url, BuildPermalinkParams, GitHostingProviderRegistry};
46pub(crate) use actions::*;
47use aho_corasick::AhoCorasick;
48use anyhow::{anyhow, Context as _, Result};
49use blink_manager::BlinkManager;
50use client::{Collaborator, ParticipantIndex};
51use clock::ReplicaId;
52use collections::{BTreeMap, Bound, HashMap, HashSet, VecDeque};
53use convert_case::{Case, Casing};
54use debounced_delay::DebouncedDelay;
55use display_map::*;
56pub use display_map::{DisplayPoint, FoldPlaceholder};
57pub use editor_settings::{CurrentLineHighlight, EditorSettings};
58use element::LineWithInvisibles;
59pub use element::{
60 CursorLayout, EditorElement, HighlightedRange, HighlightedRangeLine, PointForPosition,
61};
62use futures::FutureExt;
63use fuzzy::{StringMatch, StringMatchCandidate};
64use git::blame::GitBlame;
65use git::diff_hunk_to_display;
66use gpui::{
67 div, impl_actions, point, prelude::*, px, relative, size, uniform_list, Action, AnyElement,
68 AppContext, AsyncWindowContext, AvailableSpace, BackgroundExecutor, Bounds, ClipboardItem,
69 Context, DispatchPhase, ElementId, EventEmitter, FocusHandle, FocusOutEvent, FocusableView,
70 FontId, FontStyle, FontWeight, HighlightStyle, Hsla, InteractiveText, KeyContext,
71 ListSizingBehavior, Model, MouseButton, PaintQuad, ParentElement, Pixels, Render, SharedString,
72 Size, StrikethroughStyle, Styled, StyledText, Subscription, Task, TextStyle, UnderlineStyle,
73 UniformListScrollHandle, View, ViewContext, ViewInputHandler, VisualContext, WeakFocusHandle,
74 WeakView, WhiteSpace, WindowContext,
75};
76use highlight_matching_bracket::refresh_matching_bracket_highlights;
77use hover_popover::{hide_hover, HoverState};
78use hunk_diff::ExpandedHunks;
79pub(crate) use hunk_diff::HunkToExpand;
80use indent_guides::ActiveIndentGuidesState;
81use inlay_hint_cache::{InlayHintCache, InlaySplice, InvalidationStrategy};
82pub use inline_completion_provider::*;
83pub use items::MAX_TAB_TITLE_LEN;
84use itertools::Itertools;
85use language::{
86 char_kind,
87 language_settings::{self, all_language_settings, InlayHintSettings},
88 markdown, point_from_lsp, AutoindentMode, BracketPair, Buffer, Capability, CharKind, CodeLabel,
89 CursorShape, Diagnostic, Documentation, IndentKind, IndentSize, Language, OffsetRangeExt,
90 Point, Selection, SelectionGoal, TransactionId,
91};
92use language::{BufferRow, Runnable, RunnableRange};
93use linked_editing_ranges::refresh_linked_ranges;
94use task::{ResolvedTask, TaskTemplate, TaskVariables};
95
96use hover_links::{HoverLink, HoveredLinkState, InlayHighlight};
97pub use lsp::CompletionContext;
98use lsp::{CompletionTriggerKind, DiagnosticSeverity, LanguageServerId};
99use mouse_context_menu::MouseContextMenu;
100use movement::TextLayoutDetails;
101pub use multi_buffer::{
102 Anchor, AnchorRangeExt, ExcerptId, ExcerptRange, MultiBuffer, MultiBufferSnapshot, ToOffset,
103 ToPoint,
104};
105use multi_buffer::{ExpandExcerptDirection, MultiBufferPoint, MultiBufferRow, ToOffsetUtf16};
106use ordered_float::OrderedFloat;
107use parking_lot::{Mutex, RwLock};
108use project::project_settings::{GitGutterSetting, ProjectSettings};
109use project::{
110 CodeAction, Completion, FormatTrigger, Item, Location, Project, ProjectPath,
111 ProjectTransaction, TaskSourceKind, WorktreeId,
112};
113use rand::prelude::*;
114use rpc::{proto::*, ErrorExt};
115use scroll::{Autoscroll, OngoingScroll, ScrollAnchor, ScrollManager, ScrollbarAutoHide};
116use selections_collection::{resolve_multiple, MutableSelectionsCollection, SelectionsCollection};
117use serde::{Deserialize, Serialize};
118use settings::{update_settings_file, Settings, SettingsStore};
119use smallvec::SmallVec;
120use snippet::Snippet;
121use std::{
122 any::TypeId,
123 borrow::Cow,
124 cell::RefCell,
125 cmp::{self, Ordering, Reverse},
126 mem,
127 num::NonZeroU32,
128 ops::{ControlFlow, Deref, DerefMut, Not as _, Range, RangeInclusive},
129 path::Path,
130 rc::Rc,
131 sync::Arc,
132 time::{Duration, Instant},
133};
134pub use sum_tree::Bias;
135use sum_tree::TreeMap;
136use text::{BufferId, OffsetUtf16, Rope};
137use theme::{
138 observe_buffer_font_size_adjustment, ActiveTheme, PlayerColor, StatusColors, SyntaxTheme,
139 ThemeColors, ThemeSettings,
140};
141use ui::{
142 h_flex, prelude::*, ButtonSize, ButtonStyle, Disclosure, IconButton, IconName, IconSize,
143 ListItem, Popover, Tooltip,
144};
145use util::{defer, maybe, post_inc, RangeExt, ResultExt, TryFutureExt};
146use workspace::item::{ItemHandle, PreviewTabsSettings};
147use workspace::notifications::{DetachAndPromptErr, NotificationId};
148use workspace::{
149 searchable::SearchEvent, ItemNavHistory, SplitDirection, ViewId, Workspace, WorkspaceId,
150};
151use workspace::{OpenInTerminal, OpenTerminal, TabBarSettings, Toast};
152
153use crate::hover_links::find_url;
154
155pub const FILE_HEADER_HEIGHT: u8 = 1;
156pub const MULTI_BUFFER_EXCERPT_HEADER_HEIGHT: u8 = 1;
157pub const MULTI_BUFFER_EXCERPT_FOOTER_HEIGHT: u8 = 1;
158pub const DEFAULT_MULTIBUFFER_CONTEXT: u32 = 2;
159const CURSOR_BLINK_INTERVAL: Duration = Duration::from_millis(500);
160const MAX_LINE_LEN: usize = 1024;
161const MIN_NAVIGATION_HISTORY_ROW_DELTA: i64 = 10;
162const MAX_SELECTION_HISTORY_LEN: usize = 1024;
163pub(crate) const CURSORS_VISIBLE_FOR: Duration = Duration::from_millis(2000);
164#[doc(hidden)]
165pub const CODE_ACTIONS_DEBOUNCE_TIMEOUT: Duration = Duration::from_millis(250);
166#[doc(hidden)]
167pub const DOCUMENT_HIGHLIGHTS_DEBOUNCE_TIMEOUT: Duration = Duration::from_millis(75);
168
169pub(crate) const FORMAT_TIMEOUT: Duration = Duration::from_secs(2);
170
171pub fn render_parsed_markdown(
172 element_id: impl Into<ElementId>,
173 parsed: &language::ParsedMarkdown,
174 editor_style: &EditorStyle,
175 workspace: Option<WeakView<Workspace>>,
176 cx: &mut WindowContext,
177) -> InteractiveText {
178 let code_span_background_color = cx
179 .theme()
180 .colors()
181 .editor_document_highlight_read_background;
182
183 let highlights = gpui::combine_highlights(
184 parsed.highlights.iter().filter_map(|(range, highlight)| {
185 let highlight = highlight.to_highlight_style(&editor_style.syntax)?;
186 Some((range.clone(), highlight))
187 }),
188 parsed
189 .regions
190 .iter()
191 .zip(&parsed.region_ranges)
192 .filter_map(|(region, range)| {
193 if region.code {
194 Some((
195 range.clone(),
196 HighlightStyle {
197 background_color: Some(code_span_background_color),
198 ..Default::default()
199 },
200 ))
201 } else {
202 None
203 }
204 }),
205 );
206
207 let mut links = Vec::new();
208 let mut link_ranges = Vec::new();
209 for (range, region) in parsed.region_ranges.iter().zip(&parsed.regions) {
210 if let Some(link) = region.link.clone() {
211 links.push(link);
212 link_ranges.push(range.clone());
213 }
214 }
215
216 InteractiveText::new(
217 element_id,
218 StyledText::new(parsed.text.clone()).with_highlights(&editor_style.text, highlights),
219 )
220 .on_click(link_ranges, move |clicked_range_ix, cx| {
221 match &links[clicked_range_ix] {
222 markdown::Link::Web { url } => cx.open_url(url),
223 markdown::Link::Path { path } => {
224 if let Some(workspace) = &workspace {
225 _ = workspace.update(cx, |workspace, cx| {
226 workspace.open_abs_path(path.clone(), false, cx).detach();
227 });
228 }
229 }
230 }
231 })
232}
233
234#[derive(Clone, Copy, Debug, PartialEq, Eq, PartialOrd, Ord, Hash)]
235pub(crate) enum InlayId {
236 Suggestion(usize),
237 Hint(usize),
238}
239
240impl InlayId {
241 fn id(&self) -> usize {
242 match self {
243 Self::Suggestion(id) => *id,
244 Self::Hint(id) => *id,
245 }
246 }
247}
248
249enum DiffRowHighlight {}
250enum DocumentHighlightRead {}
251enum DocumentHighlightWrite {}
252enum InputComposition {}
253
254#[derive(Copy, Clone, PartialEq, Eq)]
255pub enum Direction {
256 Prev,
257 Next,
258}
259
260pub fn init_settings(cx: &mut AppContext) {
261 EditorSettings::register(cx);
262}
263
264pub fn init(cx: &mut AppContext) {
265 init_settings(cx);
266
267 workspace::register_project_item::<Editor>(cx);
268 workspace::register_followable_item::<Editor>(cx);
269 workspace::register_deserializable_item::<Editor>(cx);
270 cx.observe_new_views(
271 |workspace: &mut Workspace, _cx: &mut ViewContext<Workspace>| {
272 workspace.register_action(Editor::new_file);
273 workspace.register_action(Editor::new_file_in_direction);
274 },
275 )
276 .detach();
277
278 cx.on_action(move |_: &workspace::NewFile, cx| {
279 let app_state = workspace::AppState::global(cx);
280 if let Some(app_state) = app_state.upgrade() {
281 workspace::open_new(app_state, cx, |workspace, cx| {
282 Editor::new_file(workspace, &Default::default(), cx)
283 })
284 .detach();
285 }
286 });
287 cx.on_action(move |_: &workspace::NewWindow, cx| {
288 let app_state = workspace::AppState::global(cx);
289 if let Some(app_state) = app_state.upgrade() {
290 workspace::open_new(app_state, cx, |workspace, cx| {
291 Editor::new_file(workspace, &Default::default(), cx)
292 })
293 .detach();
294 }
295 });
296}
297
298pub struct SearchWithinRange;
299
300trait InvalidationRegion {
301 fn ranges(&self) -> &[Range<Anchor>];
302}
303
304#[derive(Clone, Debug, PartialEq)]
305pub enum SelectPhase {
306 Begin {
307 position: DisplayPoint,
308 add: bool,
309 click_count: usize,
310 },
311 BeginColumnar {
312 position: DisplayPoint,
313 reset: bool,
314 goal_column: u32,
315 },
316 Extend {
317 position: DisplayPoint,
318 click_count: usize,
319 },
320 Update {
321 position: DisplayPoint,
322 goal_column: u32,
323 scroll_delta: gpui::Point<f32>,
324 },
325 End,
326}
327
328#[derive(Clone, Debug)]
329pub enum SelectMode {
330 Character,
331 Word(Range<Anchor>),
332 Line(Range<Anchor>),
333 All,
334}
335
336#[derive(Copy, Clone, PartialEq, Eq, Debug)]
337pub enum EditorMode {
338 SingleLine { auto_width: bool },
339 AutoHeight { max_lines: usize },
340 Full,
341}
342
343#[derive(Clone, Debug)]
344pub enum SoftWrap {
345 None,
346 PreferLine,
347 EditorWidth,
348 Column(u32),
349}
350
351#[derive(Clone)]
352pub struct EditorStyle {
353 pub background: Hsla,
354 pub local_player: PlayerColor,
355 pub text: TextStyle,
356 pub scrollbar_width: Pixels,
357 pub syntax: Arc<SyntaxTheme>,
358 pub status: StatusColors,
359 pub inlay_hints_style: HighlightStyle,
360 pub suggestions_style: HighlightStyle,
361}
362
363impl Default for EditorStyle {
364 fn default() -> Self {
365 Self {
366 background: Hsla::default(),
367 local_player: PlayerColor::default(),
368 text: TextStyle::default(),
369 scrollbar_width: Pixels::default(),
370 syntax: Default::default(),
371 // HACK: Status colors don't have a real default.
372 // We should look into removing the status colors from the editor
373 // style and retrieve them directly from the theme.
374 status: StatusColors::dark(),
375 inlay_hints_style: HighlightStyle::default(),
376 suggestions_style: HighlightStyle::default(),
377 }
378 }
379}
380
381type CompletionId = usize;
382
383#[derive(Copy, Clone, Eq, PartialEq, PartialOrd, Ord, Debug, Default)]
384struct EditorActionId(usize);
385
386impl EditorActionId {
387 pub fn post_inc(&mut self) -> Self {
388 let answer = self.0;
389
390 *self = Self(answer + 1);
391
392 Self(answer)
393 }
394}
395
396// type GetFieldEditorTheme = dyn Fn(&theme::Theme) -> theme::FieldEditor;
397// type OverrideTextStyle = dyn Fn(&EditorStyle) -> Option<HighlightStyle>;
398
399type BackgroundHighlight = (fn(&ThemeColors) -> Hsla, Arc<[Range<Anchor>]>);
400type GutterHighlight = (fn(&AppContext) -> Hsla, Arc<[Range<Anchor>]>);
401
402struct ScrollbarMarkerState {
403 scrollbar_size: Size<Pixels>,
404 dirty: bool,
405 markers: Arc<[PaintQuad]>,
406 pending_refresh: Option<Task<Result<()>>>,
407}
408
409impl ScrollbarMarkerState {
410 fn should_refresh(&self, scrollbar_size: Size<Pixels>) -> bool {
411 self.pending_refresh.is_none() && (self.scrollbar_size != scrollbar_size || self.dirty)
412 }
413}
414
415impl Default for ScrollbarMarkerState {
416 fn default() -> Self {
417 Self {
418 scrollbar_size: Size::default(),
419 dirty: false,
420 markers: Arc::from([]),
421 pending_refresh: None,
422 }
423 }
424}
425
426#[derive(Clone, Debug)]
427struct RunnableTasks {
428 templates: Vec<(TaskSourceKind, TaskTemplate)>,
429 offset: MultiBufferOffset,
430 // We need the column at which the task context evaluation should take place (when we're spawning it via gutter).
431 column: u32,
432 // Values of all named captures, including those starting with '_'
433 extra_variables: HashMap<String, String>,
434 // Full range of the tagged region. We use it to determine which `extra_variables` to grab for context resolution in e.g. a modal.
435 context_range: Range<BufferOffset>,
436}
437
438#[derive(Clone)]
439struct ResolvedTasks {
440 templates: SmallVec<[(TaskSourceKind, ResolvedTask); 1]>,
441 position: Anchor,
442}
443#[derive(Copy, Clone, Debug)]
444struct MultiBufferOffset(usize);
445#[derive(Copy, Clone, Debug, PartialEq, PartialOrd)]
446struct BufferOffset(usize);
447/// Zed's primary text input `View`, allowing users to edit a [`MultiBuffer`]
448///
449/// See the [module level documentation](self) for more information.
450pub struct Editor {
451 focus_handle: FocusHandle,
452 last_focused_descendant: Option<WeakFocusHandle>,
453 /// The text buffer being edited
454 buffer: Model<MultiBuffer>,
455 /// Map of how text in the buffer should be displayed.
456 /// Handles soft wraps, folds, fake inlay text insertions, etc.
457 pub display_map: Model<DisplayMap>,
458 pub selections: SelectionsCollection,
459 pub scroll_manager: ScrollManager,
460 /// When inline assist editors are linked, they all render cursors because
461 /// typing enters text into each of them, even the ones that aren't focused.
462 pub(crate) show_cursor_when_unfocused: bool,
463 columnar_selection_tail: Option<Anchor>,
464 add_selections_state: Option<AddSelectionsState>,
465 select_next_state: Option<SelectNextState>,
466 select_prev_state: Option<SelectNextState>,
467 selection_history: SelectionHistory,
468 autoclose_regions: Vec<AutocloseRegion>,
469 snippet_stack: InvalidationStack<SnippetState>,
470 select_larger_syntax_node_stack: Vec<Box<[Selection<usize>]>>,
471 ime_transaction: Option<TransactionId>,
472 active_diagnostics: Option<ActiveDiagnosticGroup>,
473 soft_wrap_mode_override: Option<language_settings::SoftWrap>,
474 project: Option<Model<Project>>,
475 completion_provider: Option<Box<dyn CompletionProvider>>,
476 collaboration_hub: Option<Box<dyn CollaborationHub>>,
477 blink_manager: Model<BlinkManager>,
478 show_cursor_names: bool,
479 hovered_cursors: HashMap<HoveredCursor, Task<()>>,
480 pub show_local_selections: bool,
481 mode: EditorMode,
482 show_breadcrumbs: bool,
483 show_gutter: bool,
484 show_line_numbers: Option<bool>,
485 show_git_diff_gutter: Option<bool>,
486 show_code_actions: Option<bool>,
487 show_runnables: Option<bool>,
488 show_wrap_guides: Option<bool>,
489 show_indent_guides: Option<bool>,
490 placeholder_text: Option<Arc<str>>,
491 highlight_order: usize,
492 highlighted_rows: HashMap<TypeId, Vec<RowHighlight>>,
493 background_highlights: TreeMap<TypeId, BackgroundHighlight>,
494 gutter_highlights: TreeMap<TypeId, GutterHighlight>,
495 scrollbar_marker_state: ScrollbarMarkerState,
496 active_indent_guides_state: ActiveIndentGuidesState,
497 nav_history: Option<ItemNavHistory>,
498 context_menu: RwLock<Option<ContextMenu>>,
499 mouse_context_menu: Option<MouseContextMenu>,
500 completion_tasks: Vec<(CompletionId, Task<Option<()>>)>,
501 find_all_references_task_sources: Vec<Anchor>,
502 next_completion_id: CompletionId,
503 completion_documentation_pre_resolve_debounce: DebouncedDelay,
504 available_code_actions: Option<(Location, Arc<[CodeAction]>)>,
505 code_actions_task: Option<Task<()>>,
506 document_highlights_task: Option<Task<()>>,
507 linked_editing_range_task: Option<Task<Option<()>>>,
508 linked_edit_ranges: linked_editing_ranges::LinkedEditingRanges,
509 pending_rename: Option<RenameState>,
510 searchable: bool,
511 cursor_shape: CursorShape,
512 current_line_highlight: Option<CurrentLineHighlight>,
513 collapse_matches: bool,
514 autoindent_mode: Option<AutoindentMode>,
515 workspace: Option<(WeakView<Workspace>, Option<WorkspaceId>)>,
516 keymap_context_layers: BTreeMap<TypeId, KeyContext>,
517 input_enabled: bool,
518 use_modal_editing: bool,
519 read_only: bool,
520 leader_peer_id: Option<PeerId>,
521 remote_id: Option<ViewId>,
522 hover_state: HoverState,
523 gutter_hovered: bool,
524 hovered_link_state: Option<HoveredLinkState>,
525 inline_completion_provider: Option<RegisteredInlineCompletionProvider>,
526 active_inline_completion: Option<Inlay>,
527 show_inline_completions: bool,
528 inlay_hint_cache: InlayHintCache,
529 expanded_hunks: ExpandedHunks,
530 next_inlay_id: usize,
531 _subscriptions: Vec<Subscription>,
532 pixel_position_of_newest_cursor: Option<gpui::Point<Pixels>>,
533 gutter_dimensions: GutterDimensions,
534 pub vim_replace_map: HashMap<Range<usize>, String>,
535 style: Option<EditorStyle>,
536 next_editor_action_id: EditorActionId,
537 editor_actions: Rc<RefCell<BTreeMap<EditorActionId, Box<dyn Fn(&mut ViewContext<Self>)>>>>,
538 use_autoclose: bool,
539 use_auto_surround: bool,
540 auto_replace_emoji_shortcode: bool,
541 show_git_blame_gutter: bool,
542 show_git_blame_inline: bool,
543 show_git_blame_inline_delay_task: Option<Task<()>>,
544 git_blame_inline_enabled: bool,
545 show_selection_menu: Option<bool>,
546 blame: Option<Model<GitBlame>>,
547 blame_subscription: Option<Subscription>,
548 custom_context_menu: Option<
549 Box<
550 dyn 'static
551 + Fn(&mut Self, DisplayPoint, &mut ViewContext<Self>) -> Option<View<ui::ContextMenu>>,
552 >,
553 >,
554 last_bounds: Option<Bounds<Pixels>>,
555 expect_bounds_change: Option<Bounds<Pixels>>,
556 tasks: BTreeMap<(BufferId, BufferRow), RunnableTasks>,
557 tasks_update_task: Option<Task<()>>,
558 previous_search_ranges: Option<Arc<[Range<Anchor>]>>,
559 file_header_size: u8,
560 breadcrumb_header: Option<String>,
561}
562
563#[derive(Clone)]
564pub struct EditorSnapshot {
565 pub mode: EditorMode,
566 show_gutter: bool,
567 show_line_numbers: Option<bool>,
568 show_git_diff_gutter: Option<bool>,
569 show_code_actions: Option<bool>,
570 show_runnables: Option<bool>,
571 render_git_blame_gutter: bool,
572 pub display_snapshot: DisplaySnapshot,
573 pub placeholder_text: Option<Arc<str>>,
574 is_focused: bool,
575 scroll_anchor: ScrollAnchor,
576 ongoing_scroll: OngoingScroll,
577 current_line_highlight: CurrentLineHighlight,
578 gutter_hovered: bool,
579}
580
581const GIT_BLAME_GUTTER_WIDTH_CHARS: f32 = 53.;
582
583#[derive(Debug, Clone, Copy)]
584pub struct GutterDimensions {
585 pub left_padding: Pixels,
586 pub right_padding: Pixels,
587 pub width: Pixels,
588 pub margin: Pixels,
589 pub git_blame_entries_width: Option<Pixels>,
590}
591
592impl GutterDimensions {
593 /// The full width of the space taken up by the gutter.
594 pub fn full_width(&self) -> Pixels {
595 self.margin + self.width
596 }
597
598 /// The width of the space reserved for the fold indicators,
599 /// use alongside 'justify_end' and `gutter_width` to
600 /// right align content with the line numbers
601 pub fn fold_area_width(&self) -> Pixels {
602 self.margin + self.right_padding
603 }
604}
605
606impl Default for GutterDimensions {
607 fn default() -> Self {
608 Self {
609 left_padding: Pixels::ZERO,
610 right_padding: Pixels::ZERO,
611 width: Pixels::ZERO,
612 margin: Pixels::ZERO,
613 git_blame_entries_width: None,
614 }
615 }
616}
617
618#[derive(Debug)]
619pub struct RemoteSelection {
620 pub replica_id: ReplicaId,
621 pub selection: Selection<Anchor>,
622 pub cursor_shape: CursorShape,
623 pub peer_id: PeerId,
624 pub line_mode: bool,
625 pub participant_index: Option<ParticipantIndex>,
626 pub user_name: Option<SharedString>,
627}
628
629#[derive(Clone, Debug)]
630struct SelectionHistoryEntry {
631 selections: Arc<[Selection<Anchor>]>,
632 select_next_state: Option<SelectNextState>,
633 select_prev_state: Option<SelectNextState>,
634 add_selections_state: Option<AddSelectionsState>,
635}
636
637enum SelectionHistoryMode {
638 Normal,
639 Undoing,
640 Redoing,
641}
642
643#[derive(Clone, PartialEq, Eq, Hash)]
644struct HoveredCursor {
645 replica_id: u16,
646 selection_id: usize,
647}
648
649impl Default for SelectionHistoryMode {
650 fn default() -> Self {
651 Self::Normal
652 }
653}
654
655#[derive(Default)]
656struct SelectionHistory {
657 #[allow(clippy::type_complexity)]
658 selections_by_transaction:
659 HashMap<TransactionId, (Arc<[Selection<Anchor>]>, Option<Arc<[Selection<Anchor>]>>)>,
660 mode: SelectionHistoryMode,
661 undo_stack: VecDeque<SelectionHistoryEntry>,
662 redo_stack: VecDeque<SelectionHistoryEntry>,
663}
664
665impl SelectionHistory {
666 fn insert_transaction(
667 &mut self,
668 transaction_id: TransactionId,
669 selections: Arc<[Selection<Anchor>]>,
670 ) {
671 self.selections_by_transaction
672 .insert(transaction_id, (selections, None));
673 }
674
675 #[allow(clippy::type_complexity)]
676 fn transaction(
677 &self,
678 transaction_id: TransactionId,
679 ) -> Option<&(Arc<[Selection<Anchor>]>, Option<Arc<[Selection<Anchor>]>>)> {
680 self.selections_by_transaction.get(&transaction_id)
681 }
682
683 #[allow(clippy::type_complexity)]
684 fn transaction_mut(
685 &mut self,
686 transaction_id: TransactionId,
687 ) -> Option<&mut (Arc<[Selection<Anchor>]>, Option<Arc<[Selection<Anchor>]>>)> {
688 self.selections_by_transaction.get_mut(&transaction_id)
689 }
690
691 fn push(&mut self, entry: SelectionHistoryEntry) {
692 if !entry.selections.is_empty() {
693 match self.mode {
694 SelectionHistoryMode::Normal => {
695 self.push_undo(entry);
696 self.redo_stack.clear();
697 }
698 SelectionHistoryMode::Undoing => self.push_redo(entry),
699 SelectionHistoryMode::Redoing => self.push_undo(entry),
700 }
701 }
702 }
703
704 fn push_undo(&mut self, entry: SelectionHistoryEntry) {
705 if self
706 .undo_stack
707 .back()
708 .map_or(true, |e| e.selections != entry.selections)
709 {
710 self.undo_stack.push_back(entry);
711 if self.undo_stack.len() > MAX_SELECTION_HISTORY_LEN {
712 self.undo_stack.pop_front();
713 }
714 }
715 }
716
717 fn push_redo(&mut self, entry: SelectionHistoryEntry) {
718 if self
719 .redo_stack
720 .back()
721 .map_or(true, |e| e.selections != entry.selections)
722 {
723 self.redo_stack.push_back(entry);
724 if self.redo_stack.len() > MAX_SELECTION_HISTORY_LEN {
725 self.redo_stack.pop_front();
726 }
727 }
728 }
729}
730
731struct RowHighlight {
732 index: usize,
733 range: RangeInclusive<Anchor>,
734 color: Option<Hsla>,
735 should_autoscroll: bool,
736}
737
738#[derive(Clone, Debug)]
739struct AddSelectionsState {
740 above: bool,
741 stack: Vec<usize>,
742}
743
744#[derive(Clone)]
745struct SelectNextState {
746 query: AhoCorasick,
747 wordwise: bool,
748 done: bool,
749}
750
751impl std::fmt::Debug for SelectNextState {
752 fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
753 f.debug_struct(std::any::type_name::<Self>())
754 .field("wordwise", &self.wordwise)
755 .field("done", &self.done)
756 .finish()
757 }
758}
759
760#[derive(Debug)]
761struct AutocloseRegion {
762 selection_id: usize,
763 range: Range<Anchor>,
764 pair: BracketPair,
765}
766
767#[derive(Debug)]
768struct SnippetState {
769 ranges: Vec<Vec<Range<Anchor>>>,
770 active_index: usize,
771}
772
773#[doc(hidden)]
774pub struct RenameState {
775 pub range: Range<Anchor>,
776 pub old_name: Arc<str>,
777 pub editor: View<Editor>,
778 block_id: BlockId,
779}
780
781struct InvalidationStack<T>(Vec<T>);
782
783struct RegisteredInlineCompletionProvider {
784 provider: Arc<dyn InlineCompletionProviderHandle>,
785 _subscription: Subscription,
786}
787
788enum ContextMenu {
789 Completions(CompletionsMenu),
790 CodeActions(CodeActionsMenu),
791}
792
793impl ContextMenu {
794 fn select_first(
795 &mut self,
796 project: Option<&Model<Project>>,
797 cx: &mut ViewContext<Editor>,
798 ) -> bool {
799 if self.visible() {
800 match self {
801 ContextMenu::Completions(menu) => menu.select_first(project, cx),
802 ContextMenu::CodeActions(menu) => menu.select_first(cx),
803 }
804 true
805 } else {
806 false
807 }
808 }
809
810 fn select_prev(
811 &mut self,
812 project: Option<&Model<Project>>,
813 cx: &mut ViewContext<Editor>,
814 ) -> bool {
815 if self.visible() {
816 match self {
817 ContextMenu::Completions(menu) => menu.select_prev(project, cx),
818 ContextMenu::CodeActions(menu) => menu.select_prev(cx),
819 }
820 true
821 } else {
822 false
823 }
824 }
825
826 fn select_next(
827 &mut self,
828 project: Option<&Model<Project>>,
829 cx: &mut ViewContext<Editor>,
830 ) -> bool {
831 if self.visible() {
832 match self {
833 ContextMenu::Completions(menu) => menu.select_next(project, cx),
834 ContextMenu::CodeActions(menu) => menu.select_next(cx),
835 }
836 true
837 } else {
838 false
839 }
840 }
841
842 fn select_last(
843 &mut self,
844 project: Option<&Model<Project>>,
845 cx: &mut ViewContext<Editor>,
846 ) -> bool {
847 if self.visible() {
848 match self {
849 ContextMenu::Completions(menu) => menu.select_last(project, cx),
850 ContextMenu::CodeActions(menu) => menu.select_last(cx),
851 }
852 true
853 } else {
854 false
855 }
856 }
857
858 fn visible(&self) -> bool {
859 match self {
860 ContextMenu::Completions(menu) => menu.visible(),
861 ContextMenu::CodeActions(menu) => menu.visible(),
862 }
863 }
864
865 fn render(
866 &self,
867 cursor_position: DisplayPoint,
868 style: &EditorStyle,
869 max_height: Pixels,
870 workspace: Option<WeakView<Workspace>>,
871 cx: &mut ViewContext<Editor>,
872 ) -> (ContextMenuOrigin, AnyElement) {
873 match self {
874 ContextMenu::Completions(menu) => (
875 ContextMenuOrigin::EditorPoint(cursor_position),
876 menu.render(style, max_height, workspace, cx),
877 ),
878 ContextMenu::CodeActions(menu) => menu.render(cursor_position, style, max_height, cx),
879 }
880 }
881}
882
883enum ContextMenuOrigin {
884 EditorPoint(DisplayPoint),
885 GutterIndicator(DisplayRow),
886}
887
888#[derive(Clone)]
889struct CompletionsMenu {
890 id: CompletionId,
891 initial_position: Anchor,
892 buffer: Model<Buffer>,
893 completions: Arc<RwLock<Box<[Completion]>>>,
894 match_candidates: Arc<[StringMatchCandidate]>,
895 matches: Arc<[StringMatch]>,
896 selected_item: usize,
897 scroll_handle: UniformListScrollHandle,
898 selected_completion_documentation_resolve_debounce: Arc<Mutex<DebouncedDelay>>,
899}
900
901impl CompletionsMenu {
902 fn select_first(&mut self, project: Option<&Model<Project>>, cx: &mut ViewContext<Editor>) {
903 self.selected_item = 0;
904 self.scroll_handle.scroll_to_item(self.selected_item);
905 self.attempt_resolve_selected_completion_documentation(project, cx);
906 cx.notify();
907 }
908
909 fn select_prev(&mut self, project: Option<&Model<Project>>, cx: &mut ViewContext<Editor>) {
910 if self.selected_item > 0 {
911 self.selected_item -= 1;
912 } else {
913 self.selected_item = self.matches.len() - 1;
914 }
915 self.scroll_handle.scroll_to_item(self.selected_item);
916 self.attempt_resolve_selected_completion_documentation(project, cx);
917 cx.notify();
918 }
919
920 fn select_next(&mut self, project: Option<&Model<Project>>, cx: &mut ViewContext<Editor>) {
921 if self.selected_item + 1 < self.matches.len() {
922 self.selected_item += 1;
923 } else {
924 self.selected_item = 0;
925 }
926 self.scroll_handle.scroll_to_item(self.selected_item);
927 self.attempt_resolve_selected_completion_documentation(project, cx);
928 cx.notify();
929 }
930
931 fn select_last(&mut self, project: Option<&Model<Project>>, cx: &mut ViewContext<Editor>) {
932 self.selected_item = self.matches.len() - 1;
933 self.scroll_handle.scroll_to_item(self.selected_item);
934 self.attempt_resolve_selected_completion_documentation(project, cx);
935 cx.notify();
936 }
937
938 fn pre_resolve_completion_documentation(
939 buffer: Model<Buffer>,
940 completions: Arc<RwLock<Box<[Completion]>>>,
941 matches: Arc<[StringMatch]>,
942 editor: &Editor,
943 cx: &mut ViewContext<Editor>,
944 ) -> Task<()> {
945 let settings = EditorSettings::get_global(cx);
946 if !settings.show_completion_documentation {
947 return Task::ready(());
948 }
949
950 let Some(provider) = editor.completion_provider.as_ref() else {
951 return Task::ready(());
952 };
953
954 let resolve_task = provider.resolve_completions(
955 buffer,
956 matches.iter().map(|m| m.candidate_id).collect(),
957 completions.clone(),
958 cx,
959 );
960
961 return cx.spawn(move |this, mut cx| async move {
962 if let Some(true) = resolve_task.await.log_err() {
963 this.update(&mut cx, |_, cx| cx.notify()).ok();
964 }
965 });
966 }
967
968 fn attempt_resolve_selected_completion_documentation(
969 &mut self,
970 project: Option<&Model<Project>>,
971 cx: &mut ViewContext<Editor>,
972 ) {
973 let settings = EditorSettings::get_global(cx);
974 if !settings.show_completion_documentation {
975 return;
976 }
977
978 let completion_index = self.matches[self.selected_item].candidate_id;
979 let Some(project) = project else {
980 return;
981 };
982
983 let resolve_task = project.update(cx, |project, cx| {
984 project.resolve_completions(
985 self.buffer.clone(),
986 vec![completion_index],
987 self.completions.clone(),
988 cx,
989 )
990 });
991
992 let delay_ms =
993 EditorSettings::get_global(cx).completion_documentation_secondary_query_debounce;
994 let delay = Duration::from_millis(delay_ms);
995
996 self.selected_completion_documentation_resolve_debounce
997 .lock()
998 .fire_new(delay, cx, |_, cx| {
999 cx.spawn(move |this, mut cx| async move {
1000 if let Some(true) = resolve_task.await.log_err() {
1001 this.update(&mut cx, |_, cx| cx.notify()).ok();
1002 }
1003 })
1004 });
1005 }
1006
1007 fn visible(&self) -> bool {
1008 !self.matches.is_empty()
1009 }
1010
1011 fn render(
1012 &self,
1013 style: &EditorStyle,
1014 max_height: Pixels,
1015 workspace: Option<WeakView<Workspace>>,
1016 cx: &mut ViewContext<Editor>,
1017 ) -> AnyElement {
1018 let settings = EditorSettings::get_global(cx);
1019 let show_completion_documentation = settings.show_completion_documentation;
1020
1021 let widest_completion_ix = self
1022 .matches
1023 .iter()
1024 .enumerate()
1025 .max_by_key(|(_, mat)| {
1026 let completions = self.completions.read();
1027 let completion = &completions[mat.candidate_id];
1028 let documentation = &completion.documentation;
1029
1030 let mut len = completion.label.text.chars().count();
1031 if let Some(Documentation::SingleLine(text)) = documentation {
1032 if show_completion_documentation {
1033 len += text.chars().count();
1034 }
1035 }
1036
1037 len
1038 })
1039 .map(|(ix, _)| ix);
1040
1041 let completions = self.completions.clone();
1042 let matches = self.matches.clone();
1043 let selected_item = self.selected_item;
1044 let style = style.clone();
1045
1046 let multiline_docs = if show_completion_documentation {
1047 let mat = &self.matches[selected_item];
1048 let multiline_docs = match &self.completions.read()[mat.candidate_id].documentation {
1049 Some(Documentation::MultiLinePlainText(text)) => {
1050 Some(div().child(SharedString::from(text.clone())))
1051 }
1052 Some(Documentation::MultiLineMarkdown(parsed)) if !parsed.text.is_empty() => {
1053 Some(div().child(render_parsed_markdown(
1054 "completions_markdown",
1055 parsed,
1056 &style,
1057 workspace,
1058 cx,
1059 )))
1060 }
1061 _ => None,
1062 };
1063 multiline_docs.map(|div| {
1064 div.id("multiline_docs")
1065 .max_h(max_height)
1066 .flex_1()
1067 .px_1p5()
1068 .py_1()
1069 .min_w(px(260.))
1070 .max_w(px(640.))
1071 .w(px(500.))
1072 .overflow_y_scroll()
1073 .occlude()
1074 })
1075 } else {
1076 None
1077 };
1078
1079 let list = uniform_list(
1080 cx.view().clone(),
1081 "completions",
1082 matches.len(),
1083 move |_editor, range, cx| {
1084 let start_ix = range.start;
1085 let completions_guard = completions.read();
1086
1087 matches[range]
1088 .iter()
1089 .enumerate()
1090 .map(|(ix, mat)| {
1091 let item_ix = start_ix + ix;
1092 let candidate_id = mat.candidate_id;
1093 let completion = &completions_guard[candidate_id];
1094
1095 let documentation = if show_completion_documentation {
1096 &completion.documentation
1097 } else {
1098 &None
1099 };
1100
1101 let highlights = gpui::combine_highlights(
1102 mat.ranges().map(|range| (range, FontWeight::BOLD.into())),
1103 styled_runs_for_code_label(&completion.label, &style.syntax).map(
1104 |(range, mut highlight)| {
1105 // Ignore font weight for syntax highlighting, as we'll use it
1106 // for fuzzy matches.
1107 highlight.font_weight = None;
1108
1109 if completion.lsp_completion.deprecated.unwrap_or(false) {
1110 highlight.strikethrough = Some(StrikethroughStyle {
1111 thickness: 1.0.into(),
1112 ..Default::default()
1113 });
1114 highlight.color = Some(cx.theme().colors().text_muted);
1115 }
1116
1117 (range, highlight)
1118 },
1119 ),
1120 );
1121 let completion_label = StyledText::new(completion.label.text.clone())
1122 .with_highlights(&style.text, highlights);
1123 let documentation_label =
1124 if let Some(Documentation::SingleLine(text)) = documentation {
1125 if text.trim().is_empty() {
1126 None
1127 } else {
1128 Some(
1129 h_flex().ml_4().child(
1130 Label::new(text.clone())
1131 .size(LabelSize::Small)
1132 .color(Color::Muted),
1133 ),
1134 )
1135 }
1136 } else {
1137 None
1138 };
1139
1140 div().min_w(px(220.)).max_w(px(540.)).child(
1141 ListItem::new(mat.candidate_id)
1142 .inset(true)
1143 .selected(item_ix == selected_item)
1144 .on_click(cx.listener(move |editor, _event, cx| {
1145 cx.stop_propagation();
1146 if let Some(task) = editor.confirm_completion(
1147 &ConfirmCompletion {
1148 item_ix: Some(item_ix),
1149 },
1150 cx,
1151 ) {
1152 task.detach_and_log_err(cx)
1153 }
1154 }))
1155 .child(h_flex().overflow_hidden().child(completion_label))
1156 .end_slot::<Div>(documentation_label),
1157 )
1158 })
1159 .collect()
1160 },
1161 )
1162 .occlude()
1163 .max_h(max_height)
1164 .track_scroll(self.scroll_handle.clone())
1165 .with_width_from_item(widest_completion_ix)
1166 .with_sizing_behavior(ListSizingBehavior::Infer);
1167
1168 Popover::new()
1169 .child(list)
1170 .when_some(multiline_docs, |popover, multiline_docs| {
1171 popover.aside(multiline_docs)
1172 })
1173 .into_any_element()
1174 }
1175
1176 pub async fn filter(&mut self, query: Option<&str>, executor: BackgroundExecutor) {
1177 let mut matches = if let Some(query) = query {
1178 fuzzy::match_strings(
1179 &self.match_candidates,
1180 query,
1181 query.chars().any(|c| c.is_uppercase()),
1182 100,
1183 &Default::default(),
1184 executor,
1185 )
1186 .await
1187 } else {
1188 self.match_candidates
1189 .iter()
1190 .enumerate()
1191 .map(|(candidate_id, candidate)| StringMatch {
1192 candidate_id,
1193 score: Default::default(),
1194 positions: Default::default(),
1195 string: candidate.string.clone(),
1196 })
1197 .collect()
1198 };
1199
1200 // Remove all candidates where the query's start does not match the start of any word in the candidate
1201 if let Some(query) = query {
1202 if let Some(query_start) = query.chars().next() {
1203 matches.retain(|string_match| {
1204 split_words(&string_match.string).any(|word| {
1205 // Check that the first codepoint of the word as lowercase matches the first
1206 // codepoint of the query as lowercase
1207 word.chars()
1208 .flat_map(|codepoint| codepoint.to_lowercase())
1209 .zip(query_start.to_lowercase())
1210 .all(|(word_cp, query_cp)| word_cp == query_cp)
1211 })
1212 });
1213 }
1214 }
1215
1216 let completions = self.completions.read();
1217 matches.sort_unstable_by_key(|mat| {
1218 // We do want to strike a balance here between what the language server tells us
1219 // to sort by (the sort_text) and what are "obvious" good matches (i.e. when you type
1220 // `Creat` and there is a local variable called `CreateComponent`).
1221 // So what we do is: we bucket all matches into two buckets
1222 // - Strong matches
1223 // - Weak matches
1224 // Strong matches are the ones with a high fuzzy-matcher score (the "obvious" matches)
1225 // and the Weak matches are the rest.
1226 //
1227 // For the strong matches, we sort by the language-servers score first and for the weak
1228 // matches, we prefer our fuzzy finder first.
1229 //
1230 // The thinking behind that: it's useless to take the sort_text the language-server gives
1231 // us into account when it's obviously a bad match.
1232
1233 #[derive(PartialEq, Eq, PartialOrd, Ord)]
1234 enum MatchScore<'a> {
1235 Strong {
1236 sort_text: Option<&'a str>,
1237 score: Reverse<OrderedFloat<f64>>,
1238 sort_key: (usize, &'a str),
1239 },
1240 Weak {
1241 score: Reverse<OrderedFloat<f64>>,
1242 sort_text: Option<&'a str>,
1243 sort_key: (usize, &'a str),
1244 },
1245 }
1246
1247 let completion = &completions[mat.candidate_id];
1248 let sort_key = completion.sort_key();
1249 let sort_text = completion.lsp_completion.sort_text.as_deref();
1250 let score = Reverse(OrderedFloat(mat.score));
1251
1252 if mat.score >= 0.2 {
1253 MatchScore::Strong {
1254 sort_text,
1255 score,
1256 sort_key,
1257 }
1258 } else {
1259 MatchScore::Weak {
1260 score,
1261 sort_text,
1262 sort_key,
1263 }
1264 }
1265 });
1266
1267 for mat in &mut matches {
1268 let completion = &completions[mat.candidate_id];
1269 mat.string.clone_from(&completion.label.text);
1270 for position in &mut mat.positions {
1271 *position += completion.label.filter_range.start;
1272 }
1273 }
1274 drop(completions);
1275
1276 self.matches = matches.into();
1277 self.selected_item = 0;
1278 }
1279}
1280
1281#[derive(Clone)]
1282struct CodeActionContents {
1283 tasks: Option<Arc<ResolvedTasks>>,
1284 actions: Option<Arc<[CodeAction]>>,
1285}
1286
1287impl CodeActionContents {
1288 fn len(&self) -> usize {
1289 match (&self.tasks, &self.actions) {
1290 (Some(tasks), Some(actions)) => actions.len() + tasks.templates.len(),
1291 (Some(tasks), None) => tasks.templates.len(),
1292 (None, Some(actions)) => actions.len(),
1293 (None, None) => 0,
1294 }
1295 }
1296
1297 fn is_empty(&self) -> bool {
1298 match (&self.tasks, &self.actions) {
1299 (Some(tasks), Some(actions)) => actions.is_empty() && tasks.templates.is_empty(),
1300 (Some(tasks), None) => tasks.templates.is_empty(),
1301 (None, Some(actions)) => actions.is_empty(),
1302 (None, None) => true,
1303 }
1304 }
1305
1306 fn iter(&self) -> impl Iterator<Item = CodeActionsItem> + '_ {
1307 self.tasks
1308 .iter()
1309 .flat_map(|tasks| {
1310 tasks
1311 .templates
1312 .iter()
1313 .map(|(kind, task)| CodeActionsItem::Task(kind.clone(), task.clone()))
1314 })
1315 .chain(self.actions.iter().flat_map(|actions| {
1316 actions
1317 .iter()
1318 .map(|action| CodeActionsItem::CodeAction(action.clone()))
1319 }))
1320 }
1321 fn get(&self, index: usize) -> Option<CodeActionsItem> {
1322 match (&self.tasks, &self.actions) {
1323 (Some(tasks), Some(actions)) => {
1324 if index < tasks.templates.len() {
1325 tasks
1326 .templates
1327 .get(index)
1328 .cloned()
1329 .map(|(kind, task)| CodeActionsItem::Task(kind, task))
1330 } else {
1331 actions
1332 .get(index - tasks.templates.len())
1333 .cloned()
1334 .map(CodeActionsItem::CodeAction)
1335 }
1336 }
1337 (Some(tasks), None) => tasks
1338 .templates
1339 .get(index)
1340 .cloned()
1341 .map(|(kind, task)| CodeActionsItem::Task(kind, task)),
1342 (None, Some(actions)) => actions.get(index).cloned().map(CodeActionsItem::CodeAction),
1343 (None, None) => None,
1344 }
1345 }
1346}
1347
1348#[allow(clippy::large_enum_variant)]
1349#[derive(Clone)]
1350enum CodeActionsItem {
1351 Task(TaskSourceKind, ResolvedTask),
1352 CodeAction(CodeAction),
1353}
1354
1355impl CodeActionsItem {
1356 fn as_task(&self) -> Option<&ResolvedTask> {
1357 let Self::Task(_, task) = self else {
1358 return None;
1359 };
1360 Some(task)
1361 }
1362 fn as_code_action(&self) -> Option<&CodeAction> {
1363 let Self::CodeAction(action) = self else {
1364 return None;
1365 };
1366 Some(action)
1367 }
1368 fn label(&self) -> String {
1369 match self {
1370 Self::CodeAction(action) => action.lsp_action.title.clone(),
1371 Self::Task(_, task) => task.resolved_label.clone(),
1372 }
1373 }
1374}
1375
1376struct CodeActionsMenu {
1377 actions: CodeActionContents,
1378 buffer: Model<Buffer>,
1379 selected_item: usize,
1380 scroll_handle: UniformListScrollHandle,
1381 deployed_from_indicator: Option<DisplayRow>,
1382}
1383
1384impl CodeActionsMenu {
1385 fn select_first(&mut self, cx: &mut ViewContext<Editor>) {
1386 self.selected_item = 0;
1387 self.scroll_handle.scroll_to_item(self.selected_item);
1388 cx.notify()
1389 }
1390
1391 fn select_prev(&mut self, cx: &mut ViewContext<Editor>) {
1392 if self.selected_item > 0 {
1393 self.selected_item -= 1;
1394 } else {
1395 self.selected_item = self.actions.len() - 1;
1396 }
1397 self.scroll_handle.scroll_to_item(self.selected_item);
1398 cx.notify();
1399 }
1400
1401 fn select_next(&mut self, cx: &mut ViewContext<Editor>) {
1402 if self.selected_item + 1 < self.actions.len() {
1403 self.selected_item += 1;
1404 } else {
1405 self.selected_item = 0;
1406 }
1407 self.scroll_handle.scroll_to_item(self.selected_item);
1408 cx.notify();
1409 }
1410
1411 fn select_last(&mut self, cx: &mut ViewContext<Editor>) {
1412 self.selected_item = self.actions.len() - 1;
1413 self.scroll_handle.scroll_to_item(self.selected_item);
1414 cx.notify()
1415 }
1416
1417 fn visible(&self) -> bool {
1418 !self.actions.is_empty()
1419 }
1420
1421 fn render(
1422 &self,
1423 cursor_position: DisplayPoint,
1424 _style: &EditorStyle,
1425 max_height: Pixels,
1426 cx: &mut ViewContext<Editor>,
1427 ) -> (ContextMenuOrigin, AnyElement) {
1428 let actions = self.actions.clone();
1429 let selected_item = self.selected_item;
1430 let element = uniform_list(
1431 cx.view().clone(),
1432 "code_actions_menu",
1433 self.actions.len(),
1434 move |_this, range, cx| {
1435 actions
1436 .iter()
1437 .skip(range.start)
1438 .take(range.end - range.start)
1439 .enumerate()
1440 .map(|(ix, action)| {
1441 let item_ix = range.start + ix;
1442 let selected = selected_item == item_ix;
1443 let colors = cx.theme().colors();
1444 div()
1445 .px_2()
1446 .text_color(colors.text)
1447 .when(selected, |style| {
1448 style
1449 .bg(colors.element_active)
1450 .text_color(colors.text_accent)
1451 })
1452 .hover(|style| {
1453 style
1454 .bg(colors.element_hover)
1455 .text_color(colors.text_accent)
1456 })
1457 .whitespace_nowrap()
1458 .when_some(action.as_code_action(), |this, action| {
1459 this.on_mouse_down(
1460 MouseButton::Left,
1461 cx.listener(move |editor, _, cx| {
1462 cx.stop_propagation();
1463 if let Some(task) = editor.confirm_code_action(
1464 &ConfirmCodeAction {
1465 item_ix: Some(item_ix),
1466 },
1467 cx,
1468 ) {
1469 task.detach_and_log_err(cx)
1470 }
1471 }),
1472 )
1473 // TASK: It would be good to make lsp_action.title a SharedString to avoid allocating here.
1474 .child(SharedString::from(action.lsp_action.title.clone()))
1475 })
1476 .when_some(action.as_task(), |this, task| {
1477 this.on_mouse_down(
1478 MouseButton::Left,
1479 cx.listener(move |editor, _, cx| {
1480 cx.stop_propagation();
1481 if let Some(task) = editor.confirm_code_action(
1482 &ConfirmCodeAction {
1483 item_ix: Some(item_ix),
1484 },
1485 cx,
1486 ) {
1487 task.detach_and_log_err(cx)
1488 }
1489 }),
1490 )
1491 .child(SharedString::from(task.resolved_label.clone()))
1492 })
1493 })
1494 .collect()
1495 },
1496 )
1497 .elevation_1(cx)
1498 .px_2()
1499 .py_1()
1500 .max_h(max_height)
1501 .occlude()
1502 .track_scroll(self.scroll_handle.clone())
1503 .with_width_from_item(
1504 self.actions
1505 .iter()
1506 .enumerate()
1507 .max_by_key(|(_, action)| match action {
1508 CodeActionsItem::Task(_, task) => task.resolved_label.chars().count(),
1509 CodeActionsItem::CodeAction(action) => action.lsp_action.title.chars().count(),
1510 })
1511 .map(|(ix, _)| ix),
1512 )
1513 .with_sizing_behavior(ListSizingBehavior::Infer)
1514 .into_any_element();
1515
1516 let cursor_position = if let Some(row) = self.deployed_from_indicator {
1517 ContextMenuOrigin::GutterIndicator(row)
1518 } else {
1519 ContextMenuOrigin::EditorPoint(cursor_position)
1520 };
1521
1522 (cursor_position, element)
1523 }
1524}
1525
1526#[derive(Debug)]
1527struct ActiveDiagnosticGroup {
1528 primary_range: Range<Anchor>,
1529 primary_message: String,
1530 group_id: usize,
1531 blocks: HashMap<BlockId, Diagnostic>,
1532 is_valid: bool,
1533}
1534
1535#[derive(Serialize, Deserialize, Clone, Debug)]
1536pub struct ClipboardSelection {
1537 pub len: usize,
1538 pub is_entire_line: bool,
1539 pub first_line_indent: u32,
1540}
1541
1542#[derive(Debug)]
1543pub(crate) struct NavigationData {
1544 cursor_anchor: Anchor,
1545 cursor_position: Point,
1546 scroll_anchor: ScrollAnchor,
1547 scroll_top_row: u32,
1548}
1549
1550enum GotoDefinitionKind {
1551 Symbol,
1552 Type,
1553 Implementation,
1554}
1555
1556#[derive(Debug, Clone)]
1557enum InlayHintRefreshReason {
1558 Toggle(bool),
1559 SettingsChange(InlayHintSettings),
1560 NewLinesShown,
1561 BufferEdited(HashSet<Arc<Language>>),
1562 RefreshRequested,
1563 ExcerptsRemoved(Vec<ExcerptId>),
1564}
1565
1566impl InlayHintRefreshReason {
1567 fn description(&self) -> &'static str {
1568 match self {
1569 Self::Toggle(_) => "toggle",
1570 Self::SettingsChange(_) => "settings change",
1571 Self::NewLinesShown => "new lines shown",
1572 Self::BufferEdited(_) => "buffer edited",
1573 Self::RefreshRequested => "refresh requested",
1574 Self::ExcerptsRemoved(_) => "excerpts removed",
1575 }
1576 }
1577}
1578
1579impl Editor {
1580 pub fn single_line(cx: &mut ViewContext<Self>) -> Self {
1581 let buffer = cx.new_model(|cx| Buffer::local("", cx));
1582 let buffer = cx.new_model(|cx| MultiBuffer::singleton(buffer, cx));
1583 Self::new(
1584 EditorMode::SingleLine { auto_width: false },
1585 buffer,
1586 None,
1587 false,
1588 cx,
1589 )
1590 }
1591
1592 pub fn multi_line(cx: &mut ViewContext<Self>) -> Self {
1593 let buffer = cx.new_model(|cx| Buffer::local("", cx));
1594 let buffer = cx.new_model(|cx| MultiBuffer::singleton(buffer, cx));
1595 Self::new(EditorMode::Full, buffer, None, false, cx)
1596 }
1597
1598 pub fn auto_width(cx: &mut ViewContext<Self>) -> Self {
1599 let buffer = cx.new_model(|cx| Buffer::local("", cx));
1600 let buffer = cx.new_model(|cx| MultiBuffer::singleton(buffer, cx));
1601 Self::new(
1602 EditorMode::SingleLine { auto_width: true },
1603 buffer,
1604 None,
1605 false,
1606 cx,
1607 )
1608 }
1609
1610 pub fn auto_height(max_lines: usize, cx: &mut ViewContext<Self>) -> Self {
1611 let buffer = cx.new_model(|cx| Buffer::local("", cx));
1612 let buffer = cx.new_model(|cx| MultiBuffer::singleton(buffer, cx));
1613 Self::new(
1614 EditorMode::AutoHeight { max_lines },
1615 buffer,
1616 None,
1617 false,
1618 cx,
1619 )
1620 }
1621
1622 pub fn for_buffer(
1623 buffer: Model<Buffer>,
1624 project: Option<Model<Project>>,
1625 cx: &mut ViewContext<Self>,
1626 ) -> Self {
1627 let buffer = cx.new_model(|cx| MultiBuffer::singleton(buffer, cx));
1628 Self::new(EditorMode::Full, buffer, project, false, cx)
1629 }
1630
1631 pub fn for_multibuffer(
1632 buffer: Model<MultiBuffer>,
1633 project: Option<Model<Project>>,
1634 show_excerpt_controls: bool,
1635 cx: &mut ViewContext<Self>,
1636 ) -> Self {
1637 Self::new(EditorMode::Full, buffer, project, show_excerpt_controls, cx)
1638 }
1639
1640 pub fn clone(&self, cx: &mut ViewContext<Self>) -> Self {
1641 let show_excerpt_controls = self.display_map.read(cx).show_excerpt_controls();
1642 let mut clone = Self::new(
1643 self.mode,
1644 self.buffer.clone(),
1645 self.project.clone(),
1646 show_excerpt_controls,
1647 cx,
1648 );
1649 self.display_map.update(cx, |display_map, cx| {
1650 let snapshot = display_map.snapshot(cx);
1651 clone.display_map.update(cx, |display_map, cx| {
1652 display_map.set_state(&snapshot, cx);
1653 });
1654 });
1655 clone.selections.clone_state(&self.selections);
1656 clone.scroll_manager.clone_state(&self.scroll_manager);
1657 clone.searchable = self.searchable;
1658 clone
1659 }
1660
1661 pub fn new(
1662 mode: EditorMode,
1663 buffer: Model<MultiBuffer>,
1664 project: Option<Model<Project>>,
1665 show_excerpt_controls: bool,
1666 cx: &mut ViewContext<Self>,
1667 ) -> Self {
1668 let style = cx.text_style();
1669 let font_size = style.font_size.to_pixels(cx.rem_size());
1670 let editor = cx.view().downgrade();
1671 let fold_placeholder = FoldPlaceholder {
1672 constrain_width: true,
1673 render: Arc::new(move |fold_id, fold_range, cx| {
1674 let editor = editor.clone();
1675 div()
1676 .id(fold_id)
1677 .bg(cx.theme().colors().ghost_element_background)
1678 .hover(|style| style.bg(cx.theme().colors().ghost_element_hover))
1679 .active(|style| style.bg(cx.theme().colors().ghost_element_active))
1680 .rounded_sm()
1681 .size_full()
1682 .cursor_pointer()
1683 .child("⋯")
1684 .on_mouse_down(MouseButton::Left, |_, cx| cx.stop_propagation())
1685 .on_click(move |_, cx| {
1686 editor
1687 .update(cx, |editor, cx| {
1688 editor.unfold_ranges(
1689 [fold_range.start..fold_range.end],
1690 true,
1691 false,
1692 cx,
1693 );
1694 cx.stop_propagation();
1695 })
1696 .ok();
1697 })
1698 .into_any()
1699 }),
1700 merge_adjacent: true,
1701 };
1702 let file_header_size = if show_excerpt_controls { 3 } else { 2 };
1703 let display_map = cx.new_model(|cx| {
1704 DisplayMap::new(
1705 buffer.clone(),
1706 style.font(),
1707 font_size,
1708 None,
1709 show_excerpt_controls,
1710 file_header_size,
1711 MULTI_BUFFER_EXCERPT_HEADER_HEIGHT,
1712 MULTI_BUFFER_EXCERPT_FOOTER_HEIGHT,
1713 fold_placeholder,
1714 cx,
1715 )
1716 });
1717
1718 let selections = SelectionsCollection::new(display_map.clone(), buffer.clone());
1719
1720 let blink_manager = cx.new_model(|cx| BlinkManager::new(CURSOR_BLINK_INTERVAL, cx));
1721
1722 let soft_wrap_mode_override = matches!(mode, EditorMode::SingleLine { .. })
1723 .then(|| language_settings::SoftWrap::PreferLine);
1724
1725 let mut project_subscriptions = Vec::new();
1726 if mode == EditorMode::Full {
1727 if let Some(project) = project.as_ref() {
1728 if buffer.read(cx).is_singleton() {
1729 project_subscriptions.push(cx.observe(project, |_, _, cx| {
1730 cx.emit(EditorEvent::TitleChanged);
1731 }));
1732 }
1733 project_subscriptions.push(cx.subscribe(project, |editor, _, event, cx| {
1734 if let project::Event::RefreshInlayHints = event {
1735 editor.refresh_inlay_hints(InlayHintRefreshReason::RefreshRequested, cx);
1736 } else if let project::Event::SnippetEdit(id, snippet_edits) = event {
1737 if let Some(buffer) = editor.buffer.read(cx).buffer(*id) {
1738 let focus_handle = editor.focus_handle(cx);
1739 if focus_handle.is_focused(cx) {
1740 let snapshot = buffer.read(cx).snapshot();
1741 for (range, snippet) in snippet_edits {
1742 let editor_range =
1743 language::range_from_lsp(*range).to_offset(&snapshot);
1744 editor
1745 .insert_snippet(&[editor_range], snippet.clone(), cx)
1746 .ok();
1747 }
1748 }
1749 }
1750 }
1751 }));
1752 let task_inventory = project.read(cx).task_inventory().clone();
1753 project_subscriptions.push(cx.observe(&task_inventory, |editor, _, cx| {
1754 editor.tasks_update_task = Some(editor.refresh_runnables(cx));
1755 }));
1756 }
1757 }
1758
1759 let inlay_hint_settings = inlay_hint_settings(
1760 selections.newest_anchor().head(),
1761 &buffer.read(cx).snapshot(cx),
1762 cx,
1763 );
1764 let focus_handle = cx.focus_handle();
1765 cx.on_focus(&focus_handle, Self::handle_focus).detach();
1766 cx.on_focus_out(&focus_handle, Self::handle_focus_out)
1767 .detach();
1768 cx.on_blur(&focus_handle, Self::handle_blur).detach();
1769
1770 let show_indent_guides = if matches!(mode, EditorMode::SingleLine { .. }) {
1771 Some(false)
1772 } else {
1773 None
1774 };
1775
1776 let mut this = Self {
1777 focus_handle,
1778 show_cursor_when_unfocused: false,
1779 last_focused_descendant: None,
1780 buffer: buffer.clone(),
1781 display_map: display_map.clone(),
1782 selections,
1783 scroll_manager: ScrollManager::new(cx),
1784 columnar_selection_tail: None,
1785 add_selections_state: None,
1786 select_next_state: None,
1787 select_prev_state: None,
1788 selection_history: Default::default(),
1789 autoclose_regions: Default::default(),
1790 snippet_stack: Default::default(),
1791 select_larger_syntax_node_stack: Vec::new(),
1792 ime_transaction: Default::default(),
1793 active_diagnostics: None,
1794 soft_wrap_mode_override,
1795 completion_provider: project.clone().map(|project| Box::new(project) as _),
1796 collaboration_hub: project.clone().map(|project| Box::new(project) as _),
1797 project,
1798 blink_manager: blink_manager.clone(),
1799 show_local_selections: true,
1800 mode,
1801 show_breadcrumbs: EditorSettings::get_global(cx).toolbar.breadcrumbs,
1802 show_gutter: mode == EditorMode::Full,
1803 show_line_numbers: None,
1804 show_git_diff_gutter: None,
1805 show_code_actions: None,
1806 show_runnables: None,
1807 show_wrap_guides: None,
1808 show_indent_guides,
1809 placeholder_text: None,
1810 highlight_order: 0,
1811 highlighted_rows: HashMap::default(),
1812 background_highlights: Default::default(),
1813 gutter_highlights: TreeMap::default(),
1814 scrollbar_marker_state: ScrollbarMarkerState::default(),
1815 active_indent_guides_state: ActiveIndentGuidesState::default(),
1816 nav_history: None,
1817 context_menu: RwLock::new(None),
1818 mouse_context_menu: None,
1819 completion_tasks: Default::default(),
1820 find_all_references_task_sources: Vec::new(),
1821 next_completion_id: 0,
1822 completion_documentation_pre_resolve_debounce: DebouncedDelay::new(),
1823 next_inlay_id: 0,
1824 available_code_actions: Default::default(),
1825 code_actions_task: Default::default(),
1826 document_highlights_task: Default::default(),
1827 linked_editing_range_task: Default::default(),
1828 pending_rename: Default::default(),
1829 searchable: true,
1830 cursor_shape: Default::default(),
1831 current_line_highlight: None,
1832 autoindent_mode: Some(AutoindentMode::EachLine),
1833 collapse_matches: false,
1834 workspace: None,
1835 keymap_context_layers: Default::default(),
1836 input_enabled: true,
1837 use_modal_editing: mode == EditorMode::Full,
1838 read_only: false,
1839 use_autoclose: true,
1840 use_auto_surround: true,
1841 auto_replace_emoji_shortcode: false,
1842 leader_peer_id: None,
1843 remote_id: None,
1844 hover_state: Default::default(),
1845 hovered_link_state: Default::default(),
1846 inline_completion_provider: None,
1847 active_inline_completion: None,
1848 inlay_hint_cache: InlayHintCache::new(inlay_hint_settings),
1849 expanded_hunks: ExpandedHunks::default(),
1850 gutter_hovered: false,
1851 pixel_position_of_newest_cursor: None,
1852 last_bounds: None,
1853 expect_bounds_change: None,
1854 gutter_dimensions: GutterDimensions::default(),
1855 style: None,
1856 show_cursor_names: false,
1857 hovered_cursors: Default::default(),
1858 next_editor_action_id: EditorActionId::default(),
1859 editor_actions: Rc::default(),
1860 vim_replace_map: Default::default(),
1861 show_inline_completions: mode == EditorMode::Full,
1862 custom_context_menu: None,
1863 show_git_blame_gutter: false,
1864 show_git_blame_inline: false,
1865 show_selection_menu: None,
1866 show_git_blame_inline_delay_task: None,
1867 git_blame_inline_enabled: ProjectSettings::get_global(cx).git.inline_blame_enabled(),
1868 blame: None,
1869 blame_subscription: None,
1870 file_header_size,
1871 tasks: Default::default(),
1872 _subscriptions: vec![
1873 cx.observe(&buffer, Self::on_buffer_changed),
1874 cx.subscribe(&buffer, Self::on_buffer_event),
1875 cx.observe(&display_map, Self::on_display_map_changed),
1876 cx.observe(&blink_manager, |_, _, cx| cx.notify()),
1877 cx.observe_global::<SettingsStore>(Self::settings_changed),
1878 observe_buffer_font_size_adjustment(cx, |_, cx| cx.notify()),
1879 cx.observe_window_activation(|editor, cx| {
1880 let active = cx.is_window_active();
1881 editor.blink_manager.update(cx, |blink_manager, cx| {
1882 if active {
1883 blink_manager.enable(cx);
1884 } else {
1885 blink_manager.show_cursor(cx);
1886 blink_manager.disable(cx);
1887 }
1888 });
1889 }),
1890 ],
1891 tasks_update_task: None,
1892 linked_edit_ranges: Default::default(),
1893 previous_search_ranges: None,
1894 breadcrumb_header: None,
1895 };
1896 this.tasks_update_task = Some(this.refresh_runnables(cx));
1897 this._subscriptions.extend(project_subscriptions);
1898
1899 this.end_selection(cx);
1900 this.scroll_manager.show_scrollbar(cx);
1901
1902 if mode == EditorMode::Full {
1903 let should_auto_hide_scrollbars = cx.should_auto_hide_scrollbars();
1904 cx.set_global(ScrollbarAutoHide(should_auto_hide_scrollbars));
1905
1906 if this.git_blame_inline_enabled {
1907 this.git_blame_inline_enabled = true;
1908 this.start_git_blame_inline(false, cx);
1909 }
1910 }
1911
1912 this.report_editor_event("open", None, cx);
1913 this
1914 }
1915
1916 pub fn mouse_menu_is_focused(&self, cx: &mut WindowContext) -> bool {
1917 self.mouse_context_menu
1918 .as_ref()
1919 .is_some_and(|menu| menu.context_menu.focus_handle(cx).is_focused(cx))
1920 }
1921
1922 fn key_context(&self, cx: &AppContext) -> KeyContext {
1923 let mut key_context = KeyContext::new_with_defaults();
1924 key_context.add("Editor");
1925 let mode = match self.mode {
1926 EditorMode::SingleLine { .. } => "single_line",
1927 EditorMode::AutoHeight { .. } => "auto_height",
1928 EditorMode::Full => "full",
1929 };
1930 key_context.set("mode", mode);
1931 if self.pending_rename.is_some() {
1932 key_context.add("renaming");
1933 }
1934 if self.context_menu_visible() {
1935 match self.context_menu.read().as_ref() {
1936 Some(ContextMenu::Completions(_)) => {
1937 key_context.add("menu");
1938 key_context.add("showing_completions")
1939 }
1940 Some(ContextMenu::CodeActions(_)) => {
1941 key_context.add("menu");
1942 key_context.add("showing_code_actions")
1943 }
1944 None => {}
1945 }
1946 }
1947
1948 for layer in self.keymap_context_layers.values() {
1949 key_context.extend(layer);
1950 }
1951
1952 if let Some(extension) = self
1953 .buffer
1954 .read(cx)
1955 .as_singleton()
1956 .and_then(|buffer| buffer.read(cx).file()?.path().extension()?.to_str())
1957 {
1958 key_context.set("extension", extension.to_string());
1959 }
1960
1961 if self.has_active_inline_completion(cx) {
1962 key_context.add("copilot_suggestion");
1963 key_context.add("inline_completion");
1964 }
1965
1966 key_context
1967 }
1968
1969 pub fn new_file(
1970 workspace: &mut Workspace,
1971 _: &workspace::NewFile,
1972 cx: &mut ViewContext<Workspace>,
1973 ) {
1974 let project = workspace.project().clone();
1975 let create = project.update(cx, |project, cx| project.create_buffer(cx));
1976
1977 cx.spawn(|workspace, mut cx| async move {
1978 let buffer = create.await?;
1979 workspace.update(&mut cx, |workspace, cx| {
1980 workspace.add_item_to_active_pane(
1981 Box::new(
1982 cx.new_view(|cx| Editor::for_buffer(buffer, Some(project.clone()), cx)),
1983 ),
1984 None,
1985 cx,
1986 )
1987 })
1988 })
1989 .detach_and_prompt_err("Failed to create buffer", cx, |e, _| match e.error_code() {
1990 ErrorCode::RemoteUpgradeRequired => Some(format!(
1991 "The remote instance of Zed does not support this yet. It must be upgraded to {}",
1992 e.error_tag("required").unwrap_or("the latest version")
1993 )),
1994 _ => None,
1995 });
1996 }
1997
1998 pub fn new_file_in_direction(
1999 workspace: &mut Workspace,
2000 action: &workspace::NewFileInDirection,
2001 cx: &mut ViewContext<Workspace>,
2002 ) {
2003 let project = workspace.project().clone();
2004 let create = project.update(cx, |project, cx| project.create_buffer(cx));
2005 let direction = action.0;
2006
2007 cx.spawn(|workspace, mut cx| async move {
2008 let buffer = create.await?;
2009 workspace.update(&mut cx, move |workspace, cx| {
2010 workspace.split_item(
2011 direction,
2012 Box::new(
2013 cx.new_view(|cx| Editor::for_buffer(buffer, Some(project.clone()), cx)),
2014 ),
2015 cx,
2016 )
2017 })?;
2018 anyhow::Ok(())
2019 })
2020 .detach_and_prompt_err("Failed to create buffer", cx, |e, _| match e.error_code() {
2021 ErrorCode::RemoteUpgradeRequired => Some(format!(
2022 "The remote instance of Zed does not support this yet. It must be upgraded to {}",
2023 e.error_tag("required").unwrap_or("the latest version")
2024 )),
2025 _ => None,
2026 });
2027 }
2028
2029 pub fn replica_id(&self, cx: &AppContext) -> ReplicaId {
2030 self.buffer.read(cx).replica_id()
2031 }
2032
2033 pub fn leader_peer_id(&self) -> Option<PeerId> {
2034 self.leader_peer_id
2035 }
2036
2037 pub fn buffer(&self) -> &Model<MultiBuffer> {
2038 &self.buffer
2039 }
2040
2041 pub fn workspace(&self) -> Option<View<Workspace>> {
2042 self.workspace.as_ref()?.0.upgrade()
2043 }
2044
2045 pub fn title<'a>(&self, cx: &'a AppContext) -> Cow<'a, str> {
2046 self.buffer().read(cx).title(cx)
2047 }
2048
2049 pub fn snapshot(&mut self, cx: &mut WindowContext) -> EditorSnapshot {
2050 EditorSnapshot {
2051 mode: self.mode,
2052 show_gutter: self.show_gutter,
2053 show_line_numbers: self.show_line_numbers,
2054 show_git_diff_gutter: self.show_git_diff_gutter,
2055 show_code_actions: self.show_code_actions,
2056 show_runnables: self.show_runnables,
2057 render_git_blame_gutter: self.render_git_blame_gutter(cx),
2058 display_snapshot: self.display_map.update(cx, |map, cx| map.snapshot(cx)),
2059 scroll_anchor: self.scroll_manager.anchor(),
2060 ongoing_scroll: self.scroll_manager.ongoing_scroll(),
2061 placeholder_text: self.placeholder_text.clone(),
2062 is_focused: self.focus_handle.is_focused(cx),
2063 current_line_highlight: self
2064 .current_line_highlight
2065 .unwrap_or_else(|| EditorSettings::get_global(cx).current_line_highlight),
2066 gutter_hovered: self.gutter_hovered,
2067 }
2068 }
2069
2070 pub fn language_at<T: ToOffset>(&self, point: T, cx: &AppContext) -> Option<Arc<Language>> {
2071 self.buffer.read(cx).language_at(point, cx)
2072 }
2073
2074 pub fn file_at<T: ToOffset>(
2075 &self,
2076 point: T,
2077 cx: &AppContext,
2078 ) -> Option<Arc<dyn language::File>> {
2079 self.buffer.read(cx).read(cx).file_at(point).cloned()
2080 }
2081
2082 pub fn active_excerpt(
2083 &self,
2084 cx: &AppContext,
2085 ) -> Option<(ExcerptId, Model<Buffer>, Range<text::Anchor>)> {
2086 self.buffer
2087 .read(cx)
2088 .excerpt_containing(self.selections.newest_anchor().head(), cx)
2089 }
2090
2091 pub fn mode(&self) -> EditorMode {
2092 self.mode
2093 }
2094
2095 pub fn collaboration_hub(&self) -> Option<&dyn CollaborationHub> {
2096 self.collaboration_hub.as_deref()
2097 }
2098
2099 pub fn set_collaboration_hub(&mut self, hub: Box<dyn CollaborationHub>) {
2100 self.collaboration_hub = Some(hub);
2101 }
2102
2103 pub fn set_custom_context_menu(
2104 &mut self,
2105 f: impl 'static
2106 + Fn(&mut Self, DisplayPoint, &mut ViewContext<Self>) -> Option<View<ui::ContextMenu>>,
2107 ) {
2108 self.custom_context_menu = Some(Box::new(f))
2109 }
2110
2111 pub fn set_completion_provider(&mut self, provider: Box<dyn CompletionProvider>) {
2112 self.completion_provider = Some(provider);
2113 }
2114
2115 pub fn set_inline_completion_provider<T>(
2116 &mut self,
2117 provider: Option<Model<T>>,
2118 cx: &mut ViewContext<Self>,
2119 ) where
2120 T: InlineCompletionProvider,
2121 {
2122 self.inline_completion_provider =
2123 provider.map(|provider| RegisteredInlineCompletionProvider {
2124 _subscription: cx.observe(&provider, |this, _, cx| {
2125 if this.focus_handle.is_focused(cx) {
2126 this.update_visible_inline_completion(cx);
2127 }
2128 }),
2129 provider: Arc::new(provider),
2130 });
2131 self.refresh_inline_completion(false, cx);
2132 }
2133
2134 pub fn placeholder_text(&self, _cx: &WindowContext) -> Option<&str> {
2135 self.placeholder_text.as_deref()
2136 }
2137
2138 pub fn set_placeholder_text(
2139 &mut self,
2140 placeholder_text: impl Into<Arc<str>>,
2141 cx: &mut ViewContext<Self>,
2142 ) {
2143 let placeholder_text = Some(placeholder_text.into());
2144 if self.placeholder_text != placeholder_text {
2145 self.placeholder_text = placeholder_text;
2146 cx.notify();
2147 }
2148 }
2149
2150 pub fn set_cursor_shape(&mut self, cursor_shape: CursorShape, cx: &mut ViewContext<Self>) {
2151 self.cursor_shape = cursor_shape;
2152 cx.notify();
2153 }
2154
2155 pub fn set_current_line_highlight(
2156 &mut self,
2157 current_line_highlight: Option<CurrentLineHighlight>,
2158 ) {
2159 self.current_line_highlight = current_line_highlight;
2160 }
2161
2162 pub fn set_collapse_matches(&mut self, collapse_matches: bool) {
2163 self.collapse_matches = collapse_matches;
2164 }
2165
2166 pub fn range_for_match<T: std::marker::Copy>(&self, range: &Range<T>) -> Range<T> {
2167 if self.collapse_matches {
2168 return range.start..range.start;
2169 }
2170 range.clone()
2171 }
2172
2173 pub fn set_clip_at_line_ends(&mut self, clip: bool, cx: &mut ViewContext<Self>) {
2174 if self.display_map.read(cx).clip_at_line_ends != clip {
2175 self.display_map
2176 .update(cx, |map, _| map.clip_at_line_ends = clip);
2177 }
2178 }
2179
2180 pub fn set_keymap_context_layer<Tag: 'static>(
2181 &mut self,
2182 context: KeyContext,
2183 cx: &mut ViewContext<Self>,
2184 ) {
2185 self.keymap_context_layers
2186 .insert(TypeId::of::<Tag>(), context);
2187 cx.notify();
2188 }
2189
2190 pub fn remove_keymap_context_layer<Tag: 'static>(&mut self, cx: &mut ViewContext<Self>) {
2191 self.keymap_context_layers.remove(&TypeId::of::<Tag>());
2192 cx.notify();
2193 }
2194
2195 pub fn set_input_enabled(&mut self, input_enabled: bool) {
2196 self.input_enabled = input_enabled;
2197 }
2198
2199 pub fn set_autoindent(&mut self, autoindent: bool) {
2200 if autoindent {
2201 self.autoindent_mode = Some(AutoindentMode::EachLine);
2202 } else {
2203 self.autoindent_mode = None;
2204 }
2205 }
2206
2207 pub fn read_only(&self, cx: &AppContext) -> bool {
2208 self.read_only || self.buffer.read(cx).read_only()
2209 }
2210
2211 pub fn set_read_only(&mut self, read_only: bool) {
2212 self.read_only = read_only;
2213 }
2214
2215 pub fn set_use_autoclose(&mut self, autoclose: bool) {
2216 self.use_autoclose = autoclose;
2217 }
2218
2219 pub fn set_use_auto_surround(&mut self, auto_surround: bool) {
2220 self.use_auto_surround = auto_surround;
2221 }
2222
2223 pub fn set_auto_replace_emoji_shortcode(&mut self, auto_replace: bool) {
2224 self.auto_replace_emoji_shortcode = auto_replace;
2225 }
2226
2227 pub fn set_show_inline_completions(&mut self, show_inline_completions: bool) {
2228 self.show_inline_completions = show_inline_completions;
2229 }
2230
2231 pub fn set_use_modal_editing(&mut self, to: bool) {
2232 self.use_modal_editing = to;
2233 }
2234
2235 pub fn use_modal_editing(&self) -> bool {
2236 self.use_modal_editing
2237 }
2238
2239 fn selections_did_change(
2240 &mut self,
2241 local: bool,
2242 old_cursor_position: &Anchor,
2243 show_completions: bool,
2244 cx: &mut ViewContext<Self>,
2245 ) {
2246 // Copy selections to primary selection buffer
2247 #[cfg(target_os = "linux")]
2248 if local {
2249 let selections = self.selections.all::<usize>(cx);
2250 let buffer_handle = self.buffer.read(cx).read(cx);
2251
2252 let mut text = String::new();
2253 for (index, selection) in selections.iter().enumerate() {
2254 let text_for_selection = buffer_handle
2255 .text_for_range(selection.start..selection.end)
2256 .collect::<String>();
2257
2258 text.push_str(&text_for_selection);
2259 if index != selections.len() - 1 {
2260 text.push('\n');
2261 }
2262 }
2263
2264 if !text.is_empty() {
2265 cx.write_to_primary(ClipboardItem::new(text));
2266 }
2267 }
2268
2269 if self.focus_handle.is_focused(cx) && self.leader_peer_id.is_none() {
2270 self.buffer.update(cx, |buffer, cx| {
2271 buffer.set_active_selections(
2272 &self.selections.disjoint_anchors(),
2273 self.selections.line_mode,
2274 self.cursor_shape,
2275 cx,
2276 )
2277 });
2278 }
2279 let display_map = self
2280 .display_map
2281 .update(cx, |display_map, cx| display_map.snapshot(cx));
2282 let buffer = &display_map.buffer_snapshot;
2283 self.add_selections_state = None;
2284 self.select_next_state = None;
2285 self.select_prev_state = None;
2286 self.select_larger_syntax_node_stack.clear();
2287 self.invalidate_autoclose_regions(&self.selections.disjoint_anchors(), buffer);
2288 self.snippet_stack
2289 .invalidate(&self.selections.disjoint_anchors(), buffer);
2290 self.take_rename(false, cx);
2291
2292 let new_cursor_position = self.selections.newest_anchor().head();
2293
2294 self.push_to_nav_history(
2295 *old_cursor_position,
2296 Some(new_cursor_position.to_point(buffer)),
2297 cx,
2298 );
2299
2300 if local {
2301 let new_cursor_position = self.selections.newest_anchor().head();
2302 let mut context_menu = self.context_menu.write();
2303 let completion_menu = match context_menu.as_ref() {
2304 Some(ContextMenu::Completions(menu)) => Some(menu),
2305
2306 _ => {
2307 *context_menu = None;
2308 None
2309 }
2310 };
2311
2312 if let Some(completion_menu) = completion_menu {
2313 let cursor_position = new_cursor_position.to_offset(buffer);
2314 let (word_range, kind) = buffer.surrounding_word(completion_menu.initial_position);
2315 if kind == Some(CharKind::Word)
2316 && word_range.to_inclusive().contains(&cursor_position)
2317 {
2318 let mut completion_menu = completion_menu.clone();
2319 drop(context_menu);
2320
2321 let query = Self::completion_query(buffer, cursor_position);
2322 cx.spawn(move |this, mut cx| async move {
2323 completion_menu
2324 .filter(query.as_deref(), cx.background_executor().clone())
2325 .await;
2326
2327 this.update(&mut cx, |this, cx| {
2328 let mut context_menu = this.context_menu.write();
2329 let Some(ContextMenu::Completions(menu)) = context_menu.as_ref() else {
2330 return;
2331 };
2332
2333 if menu.id > completion_menu.id {
2334 return;
2335 }
2336
2337 *context_menu = Some(ContextMenu::Completions(completion_menu));
2338 drop(context_menu);
2339 cx.notify();
2340 })
2341 })
2342 .detach();
2343
2344 if show_completions {
2345 self.show_completions(&ShowCompletions { trigger: None }, cx);
2346 }
2347 } else {
2348 drop(context_menu);
2349 self.hide_context_menu(cx);
2350 }
2351 } else {
2352 drop(context_menu);
2353 }
2354
2355 hide_hover(self, cx);
2356
2357 if old_cursor_position.to_display_point(&display_map).row()
2358 != new_cursor_position.to_display_point(&display_map).row()
2359 {
2360 self.available_code_actions.take();
2361 }
2362 self.refresh_code_actions(cx);
2363 self.refresh_document_highlights(cx);
2364 refresh_matching_bracket_highlights(self, cx);
2365 self.discard_inline_completion(false, cx);
2366 linked_editing_ranges::refresh_linked_ranges(self, cx);
2367 if self.git_blame_inline_enabled {
2368 self.start_inline_blame_timer(cx);
2369 }
2370 }
2371
2372 self.blink_manager.update(cx, BlinkManager::pause_blinking);
2373 cx.emit(EditorEvent::SelectionsChanged { local });
2374
2375 if self.selections.disjoint_anchors().len() == 1 {
2376 cx.emit(SearchEvent::ActiveMatchChanged)
2377 }
2378 cx.notify();
2379 }
2380
2381 pub fn change_selections<R>(
2382 &mut self,
2383 autoscroll: Option<Autoscroll>,
2384 cx: &mut ViewContext<Self>,
2385 change: impl FnOnce(&mut MutableSelectionsCollection<'_>) -> R,
2386 ) -> R {
2387 self.change_selections_inner(autoscroll, true, cx, change)
2388 }
2389
2390 pub fn change_selections_inner<R>(
2391 &mut self,
2392 autoscroll: Option<Autoscroll>,
2393 request_completions: bool,
2394 cx: &mut ViewContext<Self>,
2395 change: impl FnOnce(&mut MutableSelectionsCollection<'_>) -> R,
2396 ) -> R {
2397 let old_cursor_position = self.selections.newest_anchor().head();
2398 self.push_to_selection_history();
2399
2400 let (changed, result) = self.selections.change_with(cx, change);
2401
2402 if changed {
2403 if let Some(autoscroll) = autoscroll {
2404 self.request_autoscroll(autoscroll, cx);
2405 }
2406 self.selections_did_change(true, &old_cursor_position, request_completions, cx);
2407 }
2408
2409 result
2410 }
2411
2412 pub fn edit<I, S, T>(&mut self, edits: I, cx: &mut ViewContext<Self>)
2413 where
2414 I: IntoIterator<Item = (Range<S>, T)>,
2415 S: ToOffset,
2416 T: Into<Arc<str>>,
2417 {
2418 if self.read_only(cx) {
2419 return;
2420 }
2421
2422 self.buffer
2423 .update(cx, |buffer, cx| buffer.edit(edits, None, cx));
2424 }
2425
2426 pub fn edit_with_autoindent<I, S, T>(&mut self, edits: I, cx: &mut ViewContext<Self>)
2427 where
2428 I: IntoIterator<Item = (Range<S>, T)>,
2429 S: ToOffset,
2430 T: Into<Arc<str>>,
2431 {
2432 if self.read_only(cx) {
2433 return;
2434 }
2435
2436 self.buffer.update(cx, |buffer, cx| {
2437 buffer.edit(edits, self.autoindent_mode.clone(), cx)
2438 });
2439 }
2440
2441 pub fn edit_with_block_indent<I, S, T>(
2442 &mut self,
2443 edits: I,
2444 original_indent_columns: Vec<u32>,
2445 cx: &mut ViewContext<Self>,
2446 ) where
2447 I: IntoIterator<Item = (Range<S>, T)>,
2448 S: ToOffset,
2449 T: Into<Arc<str>>,
2450 {
2451 if self.read_only(cx) {
2452 return;
2453 }
2454
2455 self.buffer.update(cx, |buffer, cx| {
2456 buffer.edit(
2457 edits,
2458 Some(AutoindentMode::Block {
2459 original_indent_columns,
2460 }),
2461 cx,
2462 )
2463 });
2464 }
2465
2466 fn select(&mut self, phase: SelectPhase, cx: &mut ViewContext<Self>) {
2467 self.hide_context_menu(cx);
2468
2469 match phase {
2470 SelectPhase::Begin {
2471 position,
2472 add,
2473 click_count,
2474 } => self.begin_selection(position, add, click_count, cx),
2475 SelectPhase::BeginColumnar {
2476 position,
2477 goal_column,
2478 reset,
2479 } => self.begin_columnar_selection(position, goal_column, reset, cx),
2480 SelectPhase::Extend {
2481 position,
2482 click_count,
2483 } => self.extend_selection(position, click_count, cx),
2484 SelectPhase::Update {
2485 position,
2486 goal_column,
2487 scroll_delta,
2488 } => self.update_selection(position, goal_column, scroll_delta, cx),
2489 SelectPhase::End => self.end_selection(cx),
2490 }
2491 }
2492
2493 fn extend_selection(
2494 &mut self,
2495 position: DisplayPoint,
2496 click_count: usize,
2497 cx: &mut ViewContext<Self>,
2498 ) {
2499 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
2500 let tail = self.selections.newest::<usize>(cx).tail();
2501 self.begin_selection(position, false, click_count, cx);
2502
2503 let position = position.to_offset(&display_map, Bias::Left);
2504 let tail_anchor = display_map.buffer_snapshot.anchor_before(tail);
2505
2506 let mut pending_selection = self
2507 .selections
2508 .pending_anchor()
2509 .expect("extend_selection not called with pending selection");
2510 if position >= tail {
2511 pending_selection.start = tail_anchor;
2512 } else {
2513 pending_selection.end = tail_anchor;
2514 pending_selection.reversed = true;
2515 }
2516
2517 let mut pending_mode = self.selections.pending_mode().unwrap();
2518 match &mut pending_mode {
2519 SelectMode::Word(range) | SelectMode::Line(range) => *range = tail_anchor..tail_anchor,
2520 _ => {}
2521 }
2522
2523 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
2524 s.set_pending(pending_selection, pending_mode)
2525 });
2526 }
2527
2528 fn begin_selection(
2529 &mut self,
2530 position: DisplayPoint,
2531 add: bool,
2532 click_count: usize,
2533 cx: &mut ViewContext<Self>,
2534 ) {
2535 if !self.focus_handle.is_focused(cx) {
2536 self.last_focused_descendant = None;
2537 cx.focus(&self.focus_handle);
2538 }
2539
2540 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
2541 let buffer = &display_map.buffer_snapshot;
2542 let newest_selection = self.selections.newest_anchor().clone();
2543 let position = display_map.clip_point(position, Bias::Left);
2544
2545 let start;
2546 let end;
2547 let mode;
2548 let auto_scroll;
2549 match click_count {
2550 1 => {
2551 start = buffer.anchor_before(position.to_point(&display_map));
2552 end = start;
2553 mode = SelectMode::Character;
2554 auto_scroll = true;
2555 }
2556 2 => {
2557 let range = movement::surrounding_word(&display_map, position);
2558 start = buffer.anchor_before(range.start.to_point(&display_map));
2559 end = buffer.anchor_before(range.end.to_point(&display_map));
2560 mode = SelectMode::Word(start..end);
2561 auto_scroll = true;
2562 }
2563 3 => {
2564 let position = display_map
2565 .clip_point(position, Bias::Left)
2566 .to_point(&display_map);
2567 let line_start = display_map.prev_line_boundary(position).0;
2568 let next_line_start = buffer.clip_point(
2569 display_map.next_line_boundary(position).0 + Point::new(1, 0),
2570 Bias::Left,
2571 );
2572 start = buffer.anchor_before(line_start);
2573 end = buffer.anchor_before(next_line_start);
2574 mode = SelectMode::Line(start..end);
2575 auto_scroll = true;
2576 }
2577 _ => {
2578 start = buffer.anchor_before(0);
2579 end = buffer.anchor_before(buffer.len());
2580 mode = SelectMode::All;
2581 auto_scroll = false;
2582 }
2583 }
2584
2585 let point_to_delete: Option<usize> = {
2586 let selected_points: Vec<Selection<Point>> =
2587 self.selections.disjoint_in_range(start..end, cx);
2588
2589 if !add || click_count > 1 {
2590 None
2591 } else if selected_points.len() > 0 {
2592 Some(selected_points[0].id)
2593 } else {
2594 let clicked_point_already_selected =
2595 self.selections.disjoint.iter().find(|selection| {
2596 selection.start.to_point(buffer) == start.to_point(buffer)
2597 || selection.end.to_point(buffer) == end.to_point(buffer)
2598 });
2599
2600 if let Some(selection) = clicked_point_already_selected {
2601 Some(selection.id)
2602 } else {
2603 None
2604 }
2605 }
2606 };
2607
2608 let selections_count = self.selections.count();
2609
2610 self.change_selections(auto_scroll.then(|| Autoscroll::newest()), cx, |s| {
2611 if let Some(point_to_delete) = point_to_delete {
2612 s.delete(point_to_delete);
2613
2614 if selections_count == 1 {
2615 s.set_pending_anchor_range(start..end, mode);
2616 }
2617 } else {
2618 if !add {
2619 s.clear_disjoint();
2620 } else if click_count > 1 {
2621 s.delete(newest_selection.id)
2622 }
2623
2624 s.set_pending_anchor_range(start..end, mode);
2625 }
2626 });
2627 }
2628
2629 fn begin_columnar_selection(
2630 &mut self,
2631 position: DisplayPoint,
2632 goal_column: u32,
2633 reset: bool,
2634 cx: &mut ViewContext<Self>,
2635 ) {
2636 if !self.focus_handle.is_focused(cx) {
2637 self.last_focused_descendant = None;
2638 cx.focus(&self.focus_handle);
2639 }
2640
2641 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
2642
2643 if reset {
2644 let pointer_position = display_map
2645 .buffer_snapshot
2646 .anchor_before(position.to_point(&display_map));
2647
2648 self.change_selections(Some(Autoscroll::newest()), cx, |s| {
2649 s.clear_disjoint();
2650 s.set_pending_anchor_range(
2651 pointer_position..pointer_position,
2652 SelectMode::Character,
2653 );
2654 });
2655 }
2656
2657 let tail = self.selections.newest::<Point>(cx).tail();
2658 self.columnar_selection_tail = Some(display_map.buffer_snapshot.anchor_before(tail));
2659
2660 if !reset {
2661 self.select_columns(
2662 tail.to_display_point(&display_map),
2663 position,
2664 goal_column,
2665 &display_map,
2666 cx,
2667 );
2668 }
2669 }
2670
2671 fn update_selection(
2672 &mut self,
2673 position: DisplayPoint,
2674 goal_column: u32,
2675 scroll_delta: gpui::Point<f32>,
2676 cx: &mut ViewContext<Self>,
2677 ) {
2678 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
2679
2680 if let Some(tail) = self.columnar_selection_tail.as_ref() {
2681 let tail = tail.to_display_point(&display_map);
2682 self.select_columns(tail, position, goal_column, &display_map, cx);
2683 } else if let Some(mut pending) = self.selections.pending_anchor() {
2684 let buffer = self.buffer.read(cx).snapshot(cx);
2685 let head;
2686 let tail;
2687 let mode = self.selections.pending_mode().unwrap();
2688 match &mode {
2689 SelectMode::Character => {
2690 head = position.to_point(&display_map);
2691 tail = pending.tail().to_point(&buffer);
2692 }
2693 SelectMode::Word(original_range) => {
2694 let original_display_range = original_range.start.to_display_point(&display_map)
2695 ..original_range.end.to_display_point(&display_map);
2696 let original_buffer_range = original_display_range.start.to_point(&display_map)
2697 ..original_display_range.end.to_point(&display_map);
2698 if movement::is_inside_word(&display_map, position)
2699 || original_display_range.contains(&position)
2700 {
2701 let word_range = movement::surrounding_word(&display_map, position);
2702 if word_range.start < original_display_range.start {
2703 head = word_range.start.to_point(&display_map);
2704 } else {
2705 head = word_range.end.to_point(&display_map);
2706 }
2707 } else {
2708 head = position.to_point(&display_map);
2709 }
2710
2711 if head <= original_buffer_range.start {
2712 tail = original_buffer_range.end;
2713 } else {
2714 tail = original_buffer_range.start;
2715 }
2716 }
2717 SelectMode::Line(original_range) => {
2718 let original_range = original_range.to_point(&display_map.buffer_snapshot);
2719
2720 let position = display_map
2721 .clip_point(position, Bias::Left)
2722 .to_point(&display_map);
2723 let line_start = display_map.prev_line_boundary(position).0;
2724 let next_line_start = buffer.clip_point(
2725 display_map.next_line_boundary(position).0 + Point::new(1, 0),
2726 Bias::Left,
2727 );
2728
2729 if line_start < original_range.start {
2730 head = line_start
2731 } else {
2732 head = next_line_start
2733 }
2734
2735 if head <= original_range.start {
2736 tail = original_range.end;
2737 } else {
2738 tail = original_range.start;
2739 }
2740 }
2741 SelectMode::All => {
2742 return;
2743 }
2744 };
2745
2746 if head < tail {
2747 pending.start = buffer.anchor_before(head);
2748 pending.end = buffer.anchor_before(tail);
2749 pending.reversed = true;
2750 } else {
2751 pending.start = buffer.anchor_before(tail);
2752 pending.end = buffer.anchor_before(head);
2753 pending.reversed = false;
2754 }
2755
2756 self.change_selections(None, cx, |s| {
2757 s.set_pending(pending, mode);
2758 });
2759 } else {
2760 log::error!("update_selection dispatched with no pending selection");
2761 return;
2762 }
2763
2764 self.apply_scroll_delta(scroll_delta, cx);
2765 cx.notify();
2766 }
2767
2768 fn end_selection(&mut self, cx: &mut ViewContext<Self>) {
2769 self.columnar_selection_tail.take();
2770 if self.selections.pending_anchor().is_some() {
2771 let selections = self.selections.all::<usize>(cx);
2772 self.change_selections(None, cx, |s| {
2773 s.select(selections);
2774 s.clear_pending();
2775 });
2776 }
2777 }
2778
2779 fn select_columns(
2780 &mut self,
2781 tail: DisplayPoint,
2782 head: DisplayPoint,
2783 goal_column: u32,
2784 display_map: &DisplaySnapshot,
2785 cx: &mut ViewContext<Self>,
2786 ) {
2787 let start_row = cmp::min(tail.row(), head.row());
2788 let end_row = cmp::max(tail.row(), head.row());
2789 let start_column = cmp::min(tail.column(), goal_column);
2790 let end_column = cmp::max(tail.column(), goal_column);
2791 let reversed = start_column < tail.column();
2792
2793 let selection_ranges = (start_row.0..=end_row.0)
2794 .map(DisplayRow)
2795 .filter_map(|row| {
2796 if start_column <= display_map.line_len(row) && !display_map.is_block_line(row) {
2797 let start = display_map
2798 .clip_point(DisplayPoint::new(row, start_column), Bias::Left)
2799 .to_point(display_map);
2800 let end = display_map
2801 .clip_point(DisplayPoint::new(row, end_column), Bias::Right)
2802 .to_point(display_map);
2803 if reversed {
2804 Some(end..start)
2805 } else {
2806 Some(start..end)
2807 }
2808 } else {
2809 None
2810 }
2811 })
2812 .collect::<Vec<_>>();
2813
2814 self.change_selections(None, cx, |s| {
2815 s.select_ranges(selection_ranges);
2816 });
2817 cx.notify();
2818 }
2819
2820 pub fn has_pending_nonempty_selection(&self) -> bool {
2821 let pending_nonempty_selection = match self.selections.pending_anchor() {
2822 Some(Selection { start, end, .. }) => start != end,
2823 None => false,
2824 };
2825
2826 pending_nonempty_selection
2827 || (self.columnar_selection_tail.is_some() && self.selections.disjoint.len() > 1)
2828 }
2829
2830 pub fn has_pending_selection(&self) -> bool {
2831 self.selections.pending_anchor().is_some() || self.columnar_selection_tail.is_some()
2832 }
2833
2834 pub fn cancel(&mut self, _: &Cancel, cx: &mut ViewContext<Self>) {
2835 self.clear_expanded_diff_hunks(cx);
2836 if self.dismiss_menus_and_popups(true, cx) {
2837 return;
2838 }
2839
2840 if self.mode == EditorMode::Full {
2841 if self.change_selections(Some(Autoscroll::fit()), cx, |s| s.try_cancel()) {
2842 return;
2843 }
2844 }
2845
2846 cx.propagate();
2847 }
2848
2849 pub fn dismiss_menus_and_popups(
2850 &mut self,
2851 should_report_inline_completion_event: bool,
2852 cx: &mut ViewContext<Self>,
2853 ) -> bool {
2854 if self.take_rename(false, cx).is_some() {
2855 return true;
2856 }
2857
2858 if hide_hover(self, cx) {
2859 return true;
2860 }
2861
2862 if self.hide_context_menu(cx).is_some() {
2863 return true;
2864 }
2865
2866 if self.discard_inline_completion(should_report_inline_completion_event, cx) {
2867 return true;
2868 }
2869
2870 if self.snippet_stack.pop().is_some() {
2871 return true;
2872 }
2873
2874 if self.mode == EditorMode::Full {
2875 if self.active_diagnostics.is_some() {
2876 self.dismiss_diagnostics(cx);
2877 return true;
2878 }
2879 }
2880
2881 false
2882 }
2883
2884 fn linked_editing_ranges_for(
2885 &self,
2886 selection: Range<text::Anchor>,
2887 cx: &AppContext,
2888 ) -> Option<HashMap<Model<Buffer>, Vec<Range<text::Anchor>>>> {
2889 if self.linked_edit_ranges.is_empty() {
2890 return None;
2891 }
2892 let ((base_range, linked_ranges), buffer_snapshot, buffer) =
2893 selection.end.buffer_id.and_then(|end_buffer_id| {
2894 if selection.start.buffer_id != Some(end_buffer_id) {
2895 return None;
2896 }
2897 let buffer = self.buffer.read(cx).buffer(end_buffer_id)?;
2898 let snapshot = buffer.read(cx).snapshot();
2899 self.linked_edit_ranges
2900 .get(end_buffer_id, selection.start..selection.end, &snapshot)
2901 .map(|ranges| (ranges, snapshot, buffer))
2902 })?;
2903 use text::ToOffset as TO;
2904 // find offset from the start of current range to current cursor position
2905 let start_byte_offset = TO::to_offset(&base_range.start, &buffer_snapshot);
2906
2907 let start_offset = TO::to_offset(&selection.start, &buffer_snapshot);
2908 let start_difference = start_offset - start_byte_offset;
2909 let end_offset = TO::to_offset(&selection.end, &buffer_snapshot);
2910 let end_difference = end_offset - start_byte_offset;
2911 // Current range has associated linked ranges.
2912 let mut linked_edits = HashMap::<_, Vec<_>>::default();
2913 for range in linked_ranges.iter() {
2914 let start_offset = TO::to_offset(&range.start, &buffer_snapshot);
2915 let end_offset = start_offset + end_difference;
2916 let start_offset = start_offset + start_difference;
2917 if start_offset > buffer_snapshot.len() || end_offset > buffer_snapshot.len() {
2918 continue;
2919 }
2920 let start = buffer_snapshot.anchor_after(start_offset);
2921 let end = buffer_snapshot.anchor_after(end_offset);
2922 linked_edits
2923 .entry(buffer.clone())
2924 .or_default()
2925 .push(start..end);
2926 }
2927 Some(linked_edits)
2928 }
2929
2930 pub fn handle_input(&mut self, text: &str, cx: &mut ViewContext<Self>) {
2931 let text: Arc<str> = text.into();
2932
2933 if self.read_only(cx) {
2934 return;
2935 }
2936
2937 let selections = self.selections.all_adjusted(cx);
2938 let mut brace_inserted = false;
2939 let mut edits = Vec::new();
2940 let mut linked_edits = HashMap::<_, Vec<_>>::default();
2941 let mut new_selections = Vec::with_capacity(selections.len());
2942 let mut new_autoclose_regions = Vec::new();
2943 let snapshot = self.buffer.read(cx).read(cx);
2944
2945 for (selection, autoclose_region) in
2946 self.selections_with_autoclose_regions(selections, &snapshot)
2947 {
2948 if let Some(scope) = snapshot.language_scope_at(selection.head()) {
2949 // Determine if the inserted text matches the opening or closing
2950 // bracket of any of this language's bracket pairs.
2951 let mut bracket_pair = None;
2952 let mut is_bracket_pair_start = false;
2953 let mut is_bracket_pair_end = false;
2954 if !text.is_empty() {
2955 // `text` can be empty when a user is using IME (e.g. Chinese Wubi Simplified)
2956 // and they are removing the character that triggered IME popup.
2957 for (pair, enabled) in scope.brackets() {
2958 if !pair.close && !pair.surround {
2959 continue;
2960 }
2961
2962 if enabled && pair.start.ends_with(text.as_ref()) {
2963 bracket_pair = Some(pair.clone());
2964 is_bracket_pair_start = true;
2965 break;
2966 }
2967 if pair.end.as_str() == text.as_ref() {
2968 bracket_pair = Some(pair.clone());
2969 is_bracket_pair_end = true;
2970 break;
2971 }
2972 }
2973 }
2974
2975 if let Some(bracket_pair) = bracket_pair {
2976 let snapshot_settings = snapshot.settings_at(selection.start, cx);
2977 let autoclose = self.use_autoclose && snapshot_settings.use_autoclose;
2978 let auto_surround =
2979 self.use_auto_surround && snapshot_settings.use_auto_surround;
2980 if selection.is_empty() {
2981 if is_bracket_pair_start {
2982 let prefix_len = bracket_pair.start.len() - text.len();
2983
2984 // If the inserted text is a suffix of an opening bracket and the
2985 // selection is preceded by the rest of the opening bracket, then
2986 // insert the closing bracket.
2987 let following_text_allows_autoclose = snapshot
2988 .chars_at(selection.start)
2989 .next()
2990 .map_or(true, |c| scope.should_autoclose_before(c));
2991 let preceding_text_matches_prefix = prefix_len == 0
2992 || (selection.start.column >= (prefix_len as u32)
2993 && snapshot.contains_str_at(
2994 Point::new(
2995 selection.start.row,
2996 selection.start.column - (prefix_len as u32),
2997 ),
2998 &bracket_pair.start[..prefix_len],
2999 ));
3000 if autoclose
3001 && bracket_pair.close
3002 && following_text_allows_autoclose
3003 && preceding_text_matches_prefix
3004 {
3005 let anchor = snapshot.anchor_before(selection.end);
3006 new_selections.push((selection.map(|_| anchor), text.len()));
3007 new_autoclose_regions.push((
3008 anchor,
3009 text.len(),
3010 selection.id,
3011 bracket_pair.clone(),
3012 ));
3013 edits.push((
3014 selection.range(),
3015 format!("{}{}", text, bracket_pair.end).into(),
3016 ));
3017 brace_inserted = true;
3018 continue;
3019 }
3020 }
3021
3022 if let Some(region) = autoclose_region {
3023 // If the selection is followed by an auto-inserted closing bracket,
3024 // then don't insert that closing bracket again; just move the selection
3025 // past the closing bracket.
3026 let should_skip = selection.end == region.range.end.to_point(&snapshot)
3027 && text.as_ref() == region.pair.end.as_str();
3028 if should_skip {
3029 let anchor = snapshot.anchor_after(selection.end);
3030 new_selections
3031 .push((selection.map(|_| anchor), region.pair.end.len()));
3032 continue;
3033 }
3034 }
3035
3036 let always_treat_brackets_as_autoclosed = snapshot
3037 .settings_at(selection.start, cx)
3038 .always_treat_brackets_as_autoclosed;
3039 if always_treat_brackets_as_autoclosed
3040 && is_bracket_pair_end
3041 && snapshot.contains_str_at(selection.end, text.as_ref())
3042 {
3043 // Otherwise, when `always_treat_brackets_as_autoclosed` is set to `true
3044 // and the inserted text is a closing bracket and the selection is followed
3045 // by the closing bracket then move the selection past the closing bracket.
3046 let anchor = snapshot.anchor_after(selection.end);
3047 new_selections.push((selection.map(|_| anchor), text.len()));
3048 continue;
3049 }
3050 }
3051 // If an opening bracket is 1 character long and is typed while
3052 // text is selected, then surround that text with the bracket pair.
3053 else if auto_surround
3054 && bracket_pair.surround
3055 && is_bracket_pair_start
3056 && bracket_pair.start.chars().count() == 1
3057 {
3058 edits.push((selection.start..selection.start, text.clone()));
3059 edits.push((
3060 selection.end..selection.end,
3061 bracket_pair.end.as_str().into(),
3062 ));
3063 brace_inserted = true;
3064 new_selections.push((
3065 Selection {
3066 id: selection.id,
3067 start: snapshot.anchor_after(selection.start),
3068 end: snapshot.anchor_before(selection.end),
3069 reversed: selection.reversed,
3070 goal: selection.goal,
3071 },
3072 0,
3073 ));
3074 continue;
3075 }
3076 }
3077 }
3078
3079 if self.auto_replace_emoji_shortcode
3080 && selection.is_empty()
3081 && text.as_ref().ends_with(':')
3082 {
3083 if let Some(possible_emoji_short_code) =
3084 Self::find_possible_emoji_shortcode_at_position(&snapshot, selection.start)
3085 {
3086 if !possible_emoji_short_code.is_empty() {
3087 if let Some(emoji) = emojis::get_by_shortcode(&possible_emoji_short_code) {
3088 let emoji_shortcode_start = Point::new(
3089 selection.start.row,
3090 selection.start.column - possible_emoji_short_code.len() as u32 - 1,
3091 );
3092
3093 // Remove shortcode from buffer
3094 edits.push((
3095 emoji_shortcode_start..selection.start,
3096 "".to_string().into(),
3097 ));
3098 new_selections.push((
3099 Selection {
3100 id: selection.id,
3101 start: snapshot.anchor_after(emoji_shortcode_start),
3102 end: snapshot.anchor_before(selection.start),
3103 reversed: selection.reversed,
3104 goal: selection.goal,
3105 },
3106 0,
3107 ));
3108
3109 // Insert emoji
3110 let selection_start_anchor = snapshot.anchor_after(selection.start);
3111 new_selections.push((selection.map(|_| selection_start_anchor), 0));
3112 edits.push((selection.start..selection.end, emoji.to_string().into()));
3113
3114 continue;
3115 }
3116 }
3117 }
3118 }
3119
3120 // If not handling any auto-close operation, then just replace the selected
3121 // text with the given input and move the selection to the end of the
3122 // newly inserted text.
3123 let anchor = snapshot.anchor_after(selection.end);
3124 if !self.linked_edit_ranges.is_empty() {
3125 let start_anchor = snapshot.anchor_before(selection.start);
3126
3127 let is_word_char = text.chars().next().map_or(true, |char| {
3128 let scope = snapshot.language_scope_at(start_anchor.to_offset(&snapshot));
3129 let kind = char_kind(&scope, char);
3130
3131 kind == CharKind::Word
3132 });
3133
3134 if is_word_char {
3135 if let Some(ranges) = self
3136 .linked_editing_ranges_for(start_anchor.text_anchor..anchor.text_anchor, cx)
3137 {
3138 for (buffer, edits) in ranges {
3139 linked_edits
3140 .entry(buffer.clone())
3141 .or_default()
3142 .extend(edits.into_iter().map(|range| (range, text.clone())));
3143 }
3144 }
3145 }
3146 }
3147
3148 new_selections.push((selection.map(|_| anchor), 0));
3149 edits.push((selection.start..selection.end, text.clone()));
3150 }
3151
3152 drop(snapshot);
3153
3154 self.transact(cx, |this, cx| {
3155 this.buffer.update(cx, |buffer, cx| {
3156 buffer.edit(edits, this.autoindent_mode.clone(), cx);
3157 });
3158 for (buffer, edits) in linked_edits {
3159 buffer.update(cx, |buffer, cx| {
3160 let snapshot = buffer.snapshot();
3161 let edits = edits
3162 .into_iter()
3163 .map(|(range, text)| {
3164 use text::ToPoint as TP;
3165 let end_point = TP::to_point(&range.end, &snapshot);
3166 let start_point = TP::to_point(&range.start, &snapshot);
3167 (start_point..end_point, text)
3168 })
3169 .sorted_by_key(|(range, _)| range.start)
3170 .collect::<Vec<_>>();
3171 buffer.edit(edits, None, cx);
3172 })
3173 }
3174 let new_anchor_selections = new_selections.iter().map(|e| &e.0);
3175 let new_selection_deltas = new_selections.iter().map(|e| e.1);
3176 let snapshot = this.buffer.read(cx).read(cx);
3177 let new_selections = resolve_multiple::<usize, _>(new_anchor_selections, &snapshot)
3178 .zip(new_selection_deltas)
3179 .map(|(selection, delta)| Selection {
3180 id: selection.id,
3181 start: selection.start + delta,
3182 end: selection.end + delta,
3183 reversed: selection.reversed,
3184 goal: SelectionGoal::None,
3185 })
3186 .collect::<Vec<_>>();
3187
3188 let mut i = 0;
3189 for (position, delta, selection_id, pair) in new_autoclose_regions {
3190 let position = position.to_offset(&snapshot) + delta;
3191 let start = snapshot.anchor_before(position);
3192 let end = snapshot.anchor_after(position);
3193 while let Some(existing_state) = this.autoclose_regions.get(i) {
3194 match existing_state.range.start.cmp(&start, &snapshot) {
3195 Ordering::Less => i += 1,
3196 Ordering::Greater => break,
3197 Ordering::Equal => match end.cmp(&existing_state.range.end, &snapshot) {
3198 Ordering::Less => i += 1,
3199 Ordering::Equal => break,
3200 Ordering::Greater => break,
3201 },
3202 }
3203 }
3204 this.autoclose_regions.insert(
3205 i,
3206 AutocloseRegion {
3207 selection_id,
3208 range: start..end,
3209 pair,
3210 },
3211 );
3212 }
3213
3214 drop(snapshot);
3215 let had_active_inline_completion = this.has_active_inline_completion(cx);
3216 this.change_selections_inner(Some(Autoscroll::fit()), false, cx, |s| {
3217 s.select(new_selections)
3218 });
3219
3220 if !brace_inserted && EditorSettings::get_global(cx).use_on_type_format {
3221 if let Some(on_type_format_task) =
3222 this.trigger_on_type_formatting(text.to_string(), cx)
3223 {
3224 on_type_format_task.detach_and_log_err(cx);
3225 }
3226 }
3227
3228 let trigger_in_words = !had_active_inline_completion;
3229 this.trigger_completion_on_input(&text, trigger_in_words, cx);
3230 linked_editing_ranges::refresh_linked_ranges(this, cx);
3231 this.refresh_inline_completion(true, cx);
3232 });
3233 }
3234
3235 fn find_possible_emoji_shortcode_at_position(
3236 snapshot: &MultiBufferSnapshot,
3237 position: Point,
3238 ) -> Option<String> {
3239 let mut chars = Vec::new();
3240 let mut found_colon = false;
3241 for char in snapshot.reversed_chars_at(position).take(100) {
3242 // Found a possible emoji shortcode in the middle of the buffer
3243 if found_colon {
3244 if char.is_whitespace() {
3245 chars.reverse();
3246 return Some(chars.iter().collect());
3247 }
3248 // If the previous character is not a whitespace, we are in the middle of a word
3249 // and we only want to complete the shortcode if the word is made up of other emojis
3250 let mut containing_word = String::new();
3251 for ch in snapshot
3252 .reversed_chars_at(position)
3253 .skip(chars.len() + 1)
3254 .take(100)
3255 {
3256 if ch.is_whitespace() {
3257 break;
3258 }
3259 containing_word.push(ch);
3260 }
3261 let containing_word = containing_word.chars().rev().collect::<String>();
3262 if util::word_consists_of_emojis(containing_word.as_str()) {
3263 chars.reverse();
3264 return Some(chars.iter().collect());
3265 }
3266 }
3267
3268 if char.is_whitespace() || !char.is_ascii() {
3269 return None;
3270 }
3271 if char == ':' {
3272 found_colon = true;
3273 } else {
3274 chars.push(char);
3275 }
3276 }
3277 // Found a possible emoji shortcode at the beginning of the buffer
3278 chars.reverse();
3279 Some(chars.iter().collect())
3280 }
3281
3282 pub fn newline(&mut self, _: &Newline, cx: &mut ViewContext<Self>) {
3283 self.transact(cx, |this, cx| {
3284 let (edits, selection_fixup_info): (Vec<_>, Vec<_>) = {
3285 let selections = this.selections.all::<usize>(cx);
3286 let multi_buffer = this.buffer.read(cx);
3287 let buffer = multi_buffer.snapshot(cx);
3288 selections
3289 .iter()
3290 .map(|selection| {
3291 let start_point = selection.start.to_point(&buffer);
3292 let mut indent =
3293 buffer.indent_size_for_line(MultiBufferRow(start_point.row));
3294 indent.len = cmp::min(indent.len, start_point.column);
3295 let start = selection.start;
3296 let end = selection.end;
3297 let selection_is_empty = start == end;
3298 let language_scope = buffer.language_scope_at(start);
3299 let (comment_delimiter, insert_extra_newline) = if let Some(language) =
3300 &language_scope
3301 {
3302 let leading_whitespace_len = buffer
3303 .reversed_chars_at(start)
3304 .take_while(|c| c.is_whitespace() && *c != '\n')
3305 .map(|c| c.len_utf8())
3306 .sum::<usize>();
3307
3308 let trailing_whitespace_len = buffer
3309 .chars_at(end)
3310 .take_while(|c| c.is_whitespace() && *c != '\n')
3311 .map(|c| c.len_utf8())
3312 .sum::<usize>();
3313
3314 let insert_extra_newline =
3315 language.brackets().any(|(pair, enabled)| {
3316 let pair_start = pair.start.trim_end();
3317 let pair_end = pair.end.trim_start();
3318
3319 enabled
3320 && pair.newline
3321 && buffer.contains_str_at(
3322 end + trailing_whitespace_len,
3323 pair_end,
3324 )
3325 && buffer.contains_str_at(
3326 (start - leading_whitespace_len)
3327 .saturating_sub(pair_start.len()),
3328 pair_start,
3329 )
3330 });
3331
3332 // Comment extension on newline is allowed only for cursor selections
3333 let comment_delimiter = maybe!({
3334 if !selection_is_empty {
3335 return None;
3336 }
3337
3338 if !multi_buffer.settings_at(0, cx).extend_comment_on_newline {
3339 return None;
3340 }
3341
3342 let delimiters = language.line_comment_prefixes();
3343 let max_len_of_delimiter =
3344 delimiters.iter().map(|delimiter| delimiter.len()).max()?;
3345 let (snapshot, range) =
3346 buffer.buffer_line_for_row(MultiBufferRow(start_point.row))?;
3347
3348 let mut index_of_first_non_whitespace = 0;
3349 let comment_candidate = snapshot
3350 .chars_for_range(range)
3351 .skip_while(|c| {
3352 let should_skip = c.is_whitespace();
3353 if should_skip {
3354 index_of_first_non_whitespace += 1;
3355 }
3356 should_skip
3357 })
3358 .take(max_len_of_delimiter)
3359 .collect::<String>();
3360 let comment_prefix = delimiters.iter().find(|comment_prefix| {
3361 comment_candidate.starts_with(comment_prefix.as_ref())
3362 })?;
3363 let cursor_is_placed_after_comment_marker =
3364 index_of_first_non_whitespace + comment_prefix.len()
3365 <= start_point.column as usize;
3366 if cursor_is_placed_after_comment_marker {
3367 Some(comment_prefix.clone())
3368 } else {
3369 None
3370 }
3371 });
3372 (comment_delimiter, insert_extra_newline)
3373 } else {
3374 (None, false)
3375 };
3376
3377 let capacity_for_delimiter = comment_delimiter
3378 .as_deref()
3379 .map(str::len)
3380 .unwrap_or_default();
3381 let mut new_text =
3382 String::with_capacity(1 + capacity_for_delimiter + indent.len as usize);
3383 new_text.push_str("\n");
3384 new_text.extend(indent.chars());
3385 if let Some(delimiter) = &comment_delimiter {
3386 new_text.push_str(&delimiter);
3387 }
3388 if insert_extra_newline {
3389 new_text = new_text.repeat(2);
3390 }
3391
3392 let anchor = buffer.anchor_after(end);
3393 let new_selection = selection.map(|_| anchor);
3394 (
3395 (start..end, new_text),
3396 (insert_extra_newline, new_selection),
3397 )
3398 })
3399 .unzip()
3400 };
3401
3402 this.edit_with_autoindent(edits, cx);
3403 let buffer = this.buffer.read(cx).snapshot(cx);
3404 let new_selections = selection_fixup_info
3405 .into_iter()
3406 .map(|(extra_newline_inserted, new_selection)| {
3407 let mut cursor = new_selection.end.to_point(&buffer);
3408 if extra_newline_inserted {
3409 cursor.row -= 1;
3410 cursor.column = buffer.line_len(MultiBufferRow(cursor.row));
3411 }
3412 new_selection.map(|_| cursor)
3413 })
3414 .collect();
3415
3416 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(new_selections));
3417 this.refresh_inline_completion(true, cx);
3418 });
3419 }
3420
3421 pub fn newline_above(&mut self, _: &NewlineAbove, cx: &mut ViewContext<Self>) {
3422 let buffer = self.buffer.read(cx);
3423 let snapshot = buffer.snapshot(cx);
3424
3425 let mut edits = Vec::new();
3426 let mut rows = Vec::new();
3427
3428 for (rows_inserted, selection) in self.selections.all_adjusted(cx).into_iter().enumerate() {
3429 let cursor = selection.head();
3430 let row = cursor.row;
3431
3432 let start_of_line = snapshot.clip_point(Point::new(row, 0), Bias::Left);
3433
3434 let newline = "\n".to_string();
3435 edits.push((start_of_line..start_of_line, newline));
3436
3437 rows.push(row + rows_inserted as u32);
3438 }
3439
3440 self.transact(cx, |editor, cx| {
3441 editor.edit(edits, cx);
3442
3443 editor.change_selections(Some(Autoscroll::fit()), cx, |s| {
3444 let mut index = 0;
3445 s.move_cursors_with(|map, _, _| {
3446 let row = rows[index];
3447 index += 1;
3448
3449 let point = Point::new(row, 0);
3450 let boundary = map.next_line_boundary(point).1;
3451 let clipped = map.clip_point(boundary, Bias::Left);
3452
3453 (clipped, SelectionGoal::None)
3454 });
3455 });
3456
3457 let mut indent_edits = Vec::new();
3458 let multibuffer_snapshot = editor.buffer.read(cx).snapshot(cx);
3459 for row in rows {
3460 let indents = multibuffer_snapshot.suggested_indents(row..row + 1, cx);
3461 for (row, indent) in indents {
3462 if indent.len == 0 {
3463 continue;
3464 }
3465
3466 let text = match indent.kind {
3467 IndentKind::Space => " ".repeat(indent.len as usize),
3468 IndentKind::Tab => "\t".repeat(indent.len as usize),
3469 };
3470 let point = Point::new(row.0, 0);
3471 indent_edits.push((point..point, text));
3472 }
3473 }
3474 editor.edit(indent_edits, cx);
3475 });
3476 }
3477
3478 pub fn newline_below(&mut self, _: &NewlineBelow, cx: &mut ViewContext<Self>) {
3479 let buffer = self.buffer.read(cx);
3480 let snapshot = buffer.snapshot(cx);
3481
3482 let mut edits = Vec::new();
3483 let mut rows = Vec::new();
3484 let mut rows_inserted = 0;
3485
3486 for selection in self.selections.all_adjusted(cx) {
3487 let cursor = selection.head();
3488 let row = cursor.row;
3489
3490 let point = Point::new(row + 1, 0);
3491 let start_of_line = snapshot.clip_point(point, Bias::Left);
3492
3493 let newline = "\n".to_string();
3494 edits.push((start_of_line..start_of_line, newline));
3495
3496 rows_inserted += 1;
3497 rows.push(row + rows_inserted);
3498 }
3499
3500 self.transact(cx, |editor, cx| {
3501 editor.edit(edits, cx);
3502
3503 editor.change_selections(Some(Autoscroll::fit()), cx, |s| {
3504 let mut index = 0;
3505 s.move_cursors_with(|map, _, _| {
3506 let row = rows[index];
3507 index += 1;
3508
3509 let point = Point::new(row, 0);
3510 let boundary = map.next_line_boundary(point).1;
3511 let clipped = map.clip_point(boundary, Bias::Left);
3512
3513 (clipped, SelectionGoal::None)
3514 });
3515 });
3516
3517 let mut indent_edits = Vec::new();
3518 let multibuffer_snapshot = editor.buffer.read(cx).snapshot(cx);
3519 for row in rows {
3520 let indents = multibuffer_snapshot.suggested_indents(row..row + 1, cx);
3521 for (row, indent) in indents {
3522 if indent.len == 0 {
3523 continue;
3524 }
3525
3526 let text = match indent.kind {
3527 IndentKind::Space => " ".repeat(indent.len as usize),
3528 IndentKind::Tab => "\t".repeat(indent.len as usize),
3529 };
3530 let point = Point::new(row.0, 0);
3531 indent_edits.push((point..point, text));
3532 }
3533 }
3534 editor.edit(indent_edits, cx);
3535 });
3536 }
3537
3538 pub fn insert(&mut self, text: &str, cx: &mut ViewContext<Self>) {
3539 let autoindent = text.is_empty().not().then(|| AutoindentMode::Block {
3540 original_indent_columns: Vec::new(),
3541 });
3542 self.insert_with_autoindent_mode(text, autoindent, cx);
3543 }
3544
3545 fn insert_with_autoindent_mode(
3546 &mut self,
3547 text: &str,
3548 autoindent_mode: Option<AutoindentMode>,
3549 cx: &mut ViewContext<Self>,
3550 ) {
3551 if self.read_only(cx) {
3552 return;
3553 }
3554
3555 let text: Arc<str> = text.into();
3556 self.transact(cx, |this, cx| {
3557 let old_selections = this.selections.all_adjusted(cx);
3558 let selection_anchors = this.buffer.update(cx, |buffer, cx| {
3559 let anchors = {
3560 let snapshot = buffer.read(cx);
3561 old_selections
3562 .iter()
3563 .map(|s| {
3564 let anchor = snapshot.anchor_after(s.head());
3565 s.map(|_| anchor)
3566 })
3567 .collect::<Vec<_>>()
3568 };
3569 buffer.edit(
3570 old_selections
3571 .iter()
3572 .map(|s| (s.start..s.end, text.clone())),
3573 autoindent_mode,
3574 cx,
3575 );
3576 anchors
3577 });
3578
3579 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
3580 s.select_anchors(selection_anchors);
3581 })
3582 });
3583 }
3584
3585 fn trigger_completion_on_input(
3586 &mut self,
3587 text: &str,
3588 trigger_in_words: bool,
3589 cx: &mut ViewContext<Self>,
3590 ) {
3591 if self.is_completion_trigger(text, trigger_in_words, cx) {
3592 self.show_completions(
3593 &ShowCompletions {
3594 trigger: text.chars().last(),
3595 },
3596 cx,
3597 );
3598 } else {
3599 self.hide_context_menu(cx);
3600 }
3601 }
3602
3603 fn is_completion_trigger(
3604 &self,
3605 text: &str,
3606 trigger_in_words: bool,
3607 cx: &mut ViewContext<Self>,
3608 ) -> bool {
3609 let position = self.selections.newest_anchor().head();
3610 let multibuffer = self.buffer.read(cx);
3611 let Some(buffer) = position
3612 .buffer_id
3613 .and_then(|buffer_id| multibuffer.buffer(buffer_id).clone())
3614 else {
3615 return false;
3616 };
3617
3618 if let Some(completion_provider) = &self.completion_provider {
3619 completion_provider.is_completion_trigger(
3620 &buffer,
3621 position.text_anchor,
3622 text,
3623 trigger_in_words,
3624 cx,
3625 )
3626 } else {
3627 false
3628 }
3629 }
3630
3631 /// If any empty selections is touching the start of its innermost containing autoclose
3632 /// region, expand it to select the brackets.
3633 fn select_autoclose_pair(&mut self, cx: &mut ViewContext<Self>) {
3634 let selections = self.selections.all::<usize>(cx);
3635 let buffer = self.buffer.read(cx).read(cx);
3636 let new_selections = self
3637 .selections_with_autoclose_regions(selections, &buffer)
3638 .map(|(mut selection, region)| {
3639 if !selection.is_empty() {
3640 return selection;
3641 }
3642
3643 if let Some(region) = region {
3644 let mut range = region.range.to_offset(&buffer);
3645 if selection.start == range.start && range.start >= region.pair.start.len() {
3646 range.start -= region.pair.start.len();
3647 if buffer.contains_str_at(range.start, ®ion.pair.start)
3648 && buffer.contains_str_at(range.end, ®ion.pair.end)
3649 {
3650 range.end += region.pair.end.len();
3651 selection.start = range.start;
3652 selection.end = range.end;
3653
3654 return selection;
3655 }
3656 }
3657 }
3658
3659 let always_treat_brackets_as_autoclosed = buffer
3660 .settings_at(selection.start, cx)
3661 .always_treat_brackets_as_autoclosed;
3662
3663 if !always_treat_brackets_as_autoclosed {
3664 return selection;
3665 }
3666
3667 if let Some(scope) = buffer.language_scope_at(selection.start) {
3668 for (pair, enabled) in scope.brackets() {
3669 if !enabled || !pair.close {
3670 continue;
3671 }
3672
3673 if buffer.contains_str_at(selection.start, &pair.end) {
3674 let pair_start_len = pair.start.len();
3675 if buffer.contains_str_at(selection.start - pair_start_len, &pair.start)
3676 {
3677 selection.start -= pair_start_len;
3678 selection.end += pair.end.len();
3679
3680 return selection;
3681 }
3682 }
3683 }
3684 }
3685
3686 selection
3687 })
3688 .collect();
3689
3690 drop(buffer);
3691 self.change_selections(None, cx, |selections| selections.select(new_selections));
3692 }
3693
3694 /// Iterate the given selections, and for each one, find the smallest surrounding
3695 /// autoclose region. This uses the ordering of the selections and the autoclose
3696 /// regions to avoid repeated comparisons.
3697 fn selections_with_autoclose_regions<'a, D: ToOffset + Clone>(
3698 &'a self,
3699 selections: impl IntoIterator<Item = Selection<D>>,
3700 buffer: &'a MultiBufferSnapshot,
3701 ) -> impl Iterator<Item = (Selection<D>, Option<&'a AutocloseRegion>)> {
3702 let mut i = 0;
3703 let mut regions = self.autoclose_regions.as_slice();
3704 selections.into_iter().map(move |selection| {
3705 let range = selection.start.to_offset(buffer)..selection.end.to_offset(buffer);
3706
3707 let mut enclosing = None;
3708 while let Some(pair_state) = regions.get(i) {
3709 if pair_state.range.end.to_offset(buffer) < range.start {
3710 regions = ®ions[i + 1..];
3711 i = 0;
3712 } else if pair_state.range.start.to_offset(buffer) > range.end {
3713 break;
3714 } else {
3715 if pair_state.selection_id == selection.id {
3716 enclosing = Some(pair_state);
3717 }
3718 i += 1;
3719 }
3720 }
3721
3722 (selection.clone(), enclosing)
3723 })
3724 }
3725
3726 /// Remove any autoclose regions that no longer contain their selection.
3727 fn invalidate_autoclose_regions(
3728 &mut self,
3729 mut selections: &[Selection<Anchor>],
3730 buffer: &MultiBufferSnapshot,
3731 ) {
3732 self.autoclose_regions.retain(|state| {
3733 let mut i = 0;
3734 while let Some(selection) = selections.get(i) {
3735 if selection.end.cmp(&state.range.start, buffer).is_lt() {
3736 selections = &selections[1..];
3737 continue;
3738 }
3739 if selection.start.cmp(&state.range.end, buffer).is_gt() {
3740 break;
3741 }
3742 if selection.id == state.selection_id {
3743 return true;
3744 } else {
3745 i += 1;
3746 }
3747 }
3748 false
3749 });
3750 }
3751
3752 fn completion_query(buffer: &MultiBufferSnapshot, position: impl ToOffset) -> Option<String> {
3753 let offset = position.to_offset(buffer);
3754 let (word_range, kind) = buffer.surrounding_word(offset);
3755 if offset > word_range.start && kind == Some(CharKind::Word) {
3756 Some(
3757 buffer
3758 .text_for_range(word_range.start..offset)
3759 .collect::<String>(),
3760 )
3761 } else {
3762 None
3763 }
3764 }
3765
3766 pub fn toggle_inlay_hints(&mut self, _: &ToggleInlayHints, cx: &mut ViewContext<Self>) {
3767 self.refresh_inlay_hints(
3768 InlayHintRefreshReason::Toggle(!self.inlay_hint_cache.enabled),
3769 cx,
3770 );
3771 }
3772
3773 pub fn inlay_hints_enabled(&self) -> bool {
3774 self.inlay_hint_cache.enabled
3775 }
3776
3777 fn refresh_inlay_hints(&mut self, reason: InlayHintRefreshReason, cx: &mut ViewContext<Self>) {
3778 if self.project.is_none() || self.mode != EditorMode::Full {
3779 return;
3780 }
3781
3782 let reason_description = reason.description();
3783 let ignore_debounce = matches!(
3784 reason,
3785 InlayHintRefreshReason::SettingsChange(_)
3786 | InlayHintRefreshReason::Toggle(_)
3787 | InlayHintRefreshReason::ExcerptsRemoved(_)
3788 );
3789 let (invalidate_cache, required_languages) = match reason {
3790 InlayHintRefreshReason::Toggle(enabled) => {
3791 self.inlay_hint_cache.enabled = enabled;
3792 if enabled {
3793 (InvalidationStrategy::RefreshRequested, None)
3794 } else {
3795 self.inlay_hint_cache.clear();
3796 self.splice_inlays(
3797 self.visible_inlay_hints(cx)
3798 .iter()
3799 .map(|inlay| inlay.id)
3800 .collect(),
3801 Vec::new(),
3802 cx,
3803 );
3804 return;
3805 }
3806 }
3807 InlayHintRefreshReason::SettingsChange(new_settings) => {
3808 match self.inlay_hint_cache.update_settings(
3809 &self.buffer,
3810 new_settings,
3811 self.visible_inlay_hints(cx),
3812 cx,
3813 ) {
3814 ControlFlow::Break(Some(InlaySplice {
3815 to_remove,
3816 to_insert,
3817 })) => {
3818 self.splice_inlays(to_remove, to_insert, cx);
3819 return;
3820 }
3821 ControlFlow::Break(None) => return,
3822 ControlFlow::Continue(()) => (InvalidationStrategy::RefreshRequested, None),
3823 }
3824 }
3825 InlayHintRefreshReason::ExcerptsRemoved(excerpts_removed) => {
3826 if let Some(InlaySplice {
3827 to_remove,
3828 to_insert,
3829 }) = self.inlay_hint_cache.remove_excerpts(excerpts_removed)
3830 {
3831 self.splice_inlays(to_remove, to_insert, cx);
3832 }
3833 return;
3834 }
3835 InlayHintRefreshReason::NewLinesShown => (InvalidationStrategy::None, None),
3836 InlayHintRefreshReason::BufferEdited(buffer_languages) => {
3837 (InvalidationStrategy::BufferEdited, Some(buffer_languages))
3838 }
3839 InlayHintRefreshReason::RefreshRequested => {
3840 (InvalidationStrategy::RefreshRequested, None)
3841 }
3842 };
3843
3844 if let Some(InlaySplice {
3845 to_remove,
3846 to_insert,
3847 }) = self.inlay_hint_cache.spawn_hint_refresh(
3848 reason_description,
3849 self.excerpts_for_inlay_hints_query(required_languages.as_ref(), cx),
3850 invalidate_cache,
3851 ignore_debounce,
3852 cx,
3853 ) {
3854 self.splice_inlays(to_remove, to_insert, cx);
3855 }
3856 }
3857
3858 fn visible_inlay_hints(&self, cx: &ViewContext<'_, Editor>) -> Vec<Inlay> {
3859 self.display_map
3860 .read(cx)
3861 .current_inlays()
3862 .filter(move |inlay| matches!(inlay.id, InlayId::Hint(_)))
3863 .cloned()
3864 .collect()
3865 }
3866
3867 pub fn excerpts_for_inlay_hints_query(
3868 &self,
3869 restrict_to_languages: Option<&HashSet<Arc<Language>>>,
3870 cx: &mut ViewContext<Editor>,
3871 ) -> HashMap<ExcerptId, (Model<Buffer>, clock::Global, Range<usize>)> {
3872 let Some(project) = self.project.as_ref() else {
3873 return HashMap::default();
3874 };
3875 let project = project.read(cx);
3876 let multi_buffer = self.buffer().read(cx);
3877 let multi_buffer_snapshot = multi_buffer.snapshot(cx);
3878 let multi_buffer_visible_start = self
3879 .scroll_manager
3880 .anchor()
3881 .anchor
3882 .to_point(&multi_buffer_snapshot);
3883 let multi_buffer_visible_end = multi_buffer_snapshot.clip_point(
3884 multi_buffer_visible_start
3885 + Point::new(self.visible_line_count().unwrap_or(0.).ceil() as u32, 0),
3886 Bias::Left,
3887 );
3888 let multi_buffer_visible_range = multi_buffer_visible_start..multi_buffer_visible_end;
3889 multi_buffer
3890 .range_to_buffer_ranges(multi_buffer_visible_range, cx)
3891 .into_iter()
3892 .filter(|(_, excerpt_visible_range, _)| !excerpt_visible_range.is_empty())
3893 .filter_map(|(buffer_handle, excerpt_visible_range, excerpt_id)| {
3894 let buffer = buffer_handle.read(cx);
3895 let buffer_file = project::File::from_dyn(buffer.file())?;
3896 let buffer_worktree = project.worktree_for_id(buffer_file.worktree_id(cx), cx)?;
3897 let worktree_entry = buffer_worktree
3898 .read(cx)
3899 .entry_for_id(buffer_file.project_entry_id(cx)?)?;
3900 if worktree_entry.is_ignored {
3901 return None;
3902 }
3903
3904 let language = buffer.language()?;
3905 if let Some(restrict_to_languages) = restrict_to_languages {
3906 if !restrict_to_languages.contains(language) {
3907 return None;
3908 }
3909 }
3910 Some((
3911 excerpt_id,
3912 (
3913 buffer_handle,
3914 buffer.version().clone(),
3915 excerpt_visible_range,
3916 ),
3917 ))
3918 })
3919 .collect()
3920 }
3921
3922 pub fn text_layout_details(&self, cx: &WindowContext) -> TextLayoutDetails {
3923 TextLayoutDetails {
3924 text_system: cx.text_system().clone(),
3925 editor_style: self.style.clone().unwrap(),
3926 rem_size: cx.rem_size(),
3927 scroll_anchor: self.scroll_manager.anchor(),
3928 visible_rows: self.visible_line_count(),
3929 vertical_scroll_margin: self.scroll_manager.vertical_scroll_margin,
3930 }
3931 }
3932
3933 fn splice_inlays(
3934 &self,
3935 to_remove: Vec<InlayId>,
3936 to_insert: Vec<Inlay>,
3937 cx: &mut ViewContext<Self>,
3938 ) {
3939 self.display_map.update(cx, |display_map, cx| {
3940 display_map.splice_inlays(to_remove, to_insert, cx);
3941 });
3942 cx.notify();
3943 }
3944
3945 fn trigger_on_type_formatting(
3946 &self,
3947 input: String,
3948 cx: &mut ViewContext<Self>,
3949 ) -> Option<Task<Result<()>>> {
3950 if input.len() != 1 {
3951 return None;
3952 }
3953
3954 let project = self.project.as_ref()?;
3955 let position = self.selections.newest_anchor().head();
3956 let (buffer, buffer_position) = self
3957 .buffer
3958 .read(cx)
3959 .text_anchor_for_position(position, cx)?;
3960
3961 // OnTypeFormatting returns a list of edits, no need to pass them between Zed instances,
3962 // hence we do LSP request & edit on host side only — add formats to host's history.
3963 let push_to_lsp_host_history = true;
3964 // If this is not the host, append its history with new edits.
3965 let push_to_client_history = project.read(cx).is_remote();
3966
3967 let on_type_formatting = project.update(cx, |project, cx| {
3968 project.on_type_format(
3969 buffer.clone(),
3970 buffer_position,
3971 input,
3972 push_to_lsp_host_history,
3973 cx,
3974 )
3975 });
3976 Some(cx.spawn(|editor, mut cx| async move {
3977 if let Some(transaction) = on_type_formatting.await? {
3978 if push_to_client_history {
3979 buffer
3980 .update(&mut cx, |buffer, _| {
3981 buffer.push_transaction(transaction, Instant::now());
3982 })
3983 .ok();
3984 }
3985 editor.update(&mut cx, |editor, cx| {
3986 editor.refresh_document_highlights(cx);
3987 })?;
3988 }
3989 Ok(())
3990 }))
3991 }
3992
3993 pub fn show_completions(&mut self, options: &ShowCompletions, cx: &mut ViewContext<Self>) {
3994 if self.pending_rename.is_some() {
3995 return;
3996 }
3997
3998 let Some(provider) = self.completion_provider.as_ref() else {
3999 return;
4000 };
4001
4002 let position = self.selections.newest_anchor().head();
4003 let (buffer, buffer_position) =
4004 if let Some(output) = self.buffer.read(cx).text_anchor_for_position(position, cx) {
4005 output
4006 } else {
4007 return;
4008 };
4009
4010 let query = Self::completion_query(&self.buffer.read(cx).read(cx), position);
4011 let is_followup_invoke = {
4012 let context_menu_state = self.context_menu.read();
4013 matches!(
4014 context_menu_state.deref(),
4015 Some(ContextMenu::Completions(_))
4016 )
4017 };
4018 let trigger_kind = match (options.trigger, is_followup_invoke) {
4019 (_, true) => CompletionTriggerKind::TRIGGER_FOR_INCOMPLETE_COMPLETIONS,
4020 (Some(_), _) => CompletionTriggerKind::TRIGGER_CHARACTER,
4021 _ => CompletionTriggerKind::INVOKED,
4022 };
4023 let completion_context = CompletionContext {
4024 trigger_character: options.trigger.and_then(|c| {
4025 if trigger_kind == CompletionTriggerKind::TRIGGER_CHARACTER {
4026 Some(String::from(c))
4027 } else {
4028 None
4029 }
4030 }),
4031 trigger_kind,
4032 };
4033 let completions = provider.completions(&buffer, buffer_position, completion_context, cx);
4034
4035 let id = post_inc(&mut self.next_completion_id);
4036 let task = cx.spawn(|this, mut cx| {
4037 async move {
4038 this.update(&mut cx, |this, _| {
4039 this.completion_tasks.retain(|(task_id, _)| *task_id >= id);
4040 })?;
4041 let completions = completions.await.log_err();
4042 let menu = if let Some(completions) = completions {
4043 let mut menu = CompletionsMenu {
4044 id,
4045 initial_position: position,
4046 match_candidates: completions
4047 .iter()
4048 .enumerate()
4049 .map(|(id, completion)| {
4050 StringMatchCandidate::new(
4051 id,
4052 completion.label.text[completion.label.filter_range.clone()]
4053 .into(),
4054 )
4055 })
4056 .collect(),
4057 buffer: buffer.clone(),
4058 completions: Arc::new(RwLock::new(completions.into())),
4059 matches: Vec::new().into(),
4060 selected_item: 0,
4061 scroll_handle: UniformListScrollHandle::new(),
4062 selected_completion_documentation_resolve_debounce: Arc::new(Mutex::new(
4063 DebouncedDelay::new(),
4064 )),
4065 };
4066 menu.filter(query.as_deref(), cx.background_executor().clone())
4067 .await;
4068
4069 if menu.matches.is_empty() {
4070 None
4071 } else {
4072 this.update(&mut cx, |editor, cx| {
4073 let completions = menu.completions.clone();
4074 let matches = menu.matches.clone();
4075
4076 let delay_ms = EditorSettings::get_global(cx)
4077 .completion_documentation_secondary_query_debounce;
4078 let delay = Duration::from_millis(delay_ms);
4079 editor
4080 .completion_documentation_pre_resolve_debounce
4081 .fire_new(delay, cx, |editor, cx| {
4082 CompletionsMenu::pre_resolve_completion_documentation(
4083 buffer,
4084 completions,
4085 matches,
4086 editor,
4087 cx,
4088 )
4089 });
4090 })
4091 .ok();
4092 Some(menu)
4093 }
4094 } else {
4095 None
4096 };
4097
4098 this.update(&mut cx, |this, cx| {
4099 let mut context_menu = this.context_menu.write();
4100 match context_menu.as_ref() {
4101 None => {}
4102
4103 Some(ContextMenu::Completions(prev_menu)) => {
4104 if prev_menu.id > id {
4105 return;
4106 }
4107 }
4108
4109 _ => return,
4110 }
4111
4112 if this.focus_handle.is_focused(cx) && menu.is_some() {
4113 let menu = menu.unwrap();
4114 *context_menu = Some(ContextMenu::Completions(menu));
4115 drop(context_menu);
4116 this.discard_inline_completion(false, cx);
4117 cx.notify();
4118 } else if this.completion_tasks.len() <= 1 {
4119 // If there are no more completion tasks and the last menu was
4120 // empty, we should hide it. If it was already hidden, we should
4121 // also show the copilot completion when available.
4122 drop(context_menu);
4123 if this.hide_context_menu(cx).is_none() {
4124 this.update_visible_inline_completion(cx);
4125 }
4126 }
4127 })?;
4128
4129 Ok::<_, anyhow::Error>(())
4130 }
4131 .log_err()
4132 });
4133
4134 self.completion_tasks.push((id, task));
4135 }
4136
4137 pub fn confirm_completion(
4138 &mut self,
4139 action: &ConfirmCompletion,
4140 cx: &mut ViewContext<Self>,
4141 ) -> Option<Task<Result<()>>> {
4142 use language::ToOffset as _;
4143
4144 let completions_menu = if let ContextMenu::Completions(menu) = self.hide_context_menu(cx)? {
4145 menu
4146 } else {
4147 return None;
4148 };
4149
4150 let mat = completions_menu
4151 .matches
4152 .get(action.item_ix.unwrap_or(completions_menu.selected_item))?;
4153 let buffer_handle = completions_menu.buffer;
4154 let completions = completions_menu.completions.read();
4155 let completion = completions.get(mat.candidate_id)?;
4156 cx.stop_propagation();
4157
4158 let snippet;
4159 let text;
4160
4161 if completion.is_snippet() {
4162 snippet = Some(Snippet::parse(&completion.new_text).log_err()?);
4163 text = snippet.as_ref().unwrap().text.clone();
4164 } else {
4165 snippet = None;
4166 text = completion.new_text.clone();
4167 };
4168 let selections = self.selections.all::<usize>(cx);
4169 let buffer = buffer_handle.read(cx);
4170 let old_range = completion.old_range.to_offset(buffer);
4171 let old_text = buffer.text_for_range(old_range.clone()).collect::<String>();
4172
4173 let newest_selection = self.selections.newest_anchor();
4174 if newest_selection.start.buffer_id != Some(buffer_handle.read(cx).remote_id()) {
4175 return None;
4176 }
4177
4178 let lookbehind = newest_selection
4179 .start
4180 .text_anchor
4181 .to_offset(buffer)
4182 .saturating_sub(old_range.start);
4183 let lookahead = old_range
4184 .end
4185 .saturating_sub(newest_selection.end.text_anchor.to_offset(buffer));
4186 let mut common_prefix_len = old_text
4187 .bytes()
4188 .zip(text.bytes())
4189 .take_while(|(a, b)| a == b)
4190 .count();
4191
4192 let snapshot = self.buffer.read(cx).snapshot(cx);
4193 let mut range_to_replace: Option<Range<isize>> = None;
4194 let mut ranges = Vec::new();
4195 let mut linked_edits = HashMap::<_, Vec<_>>::default();
4196 for selection in &selections {
4197 if snapshot.contains_str_at(selection.start.saturating_sub(lookbehind), &old_text) {
4198 let start = selection.start.saturating_sub(lookbehind);
4199 let end = selection.end + lookahead;
4200 if selection.id == newest_selection.id {
4201 range_to_replace = Some(
4202 ((start + common_prefix_len) as isize - selection.start as isize)
4203 ..(end as isize - selection.start as isize),
4204 );
4205 }
4206 ranges.push(start + common_prefix_len..end);
4207 } else {
4208 common_prefix_len = 0;
4209 ranges.clear();
4210 ranges.extend(selections.iter().map(|s| {
4211 if s.id == newest_selection.id {
4212 range_to_replace = Some(
4213 old_range.start.to_offset_utf16(&snapshot).0 as isize
4214 - selection.start as isize
4215 ..old_range.end.to_offset_utf16(&snapshot).0 as isize
4216 - selection.start as isize,
4217 );
4218 old_range.clone()
4219 } else {
4220 s.start..s.end
4221 }
4222 }));
4223 break;
4224 }
4225 if !self.linked_edit_ranges.is_empty() {
4226 let start_anchor = snapshot.anchor_before(selection.head());
4227 let end_anchor = snapshot.anchor_after(selection.tail());
4228 if let Some(ranges) = self
4229 .linked_editing_ranges_for(start_anchor.text_anchor..end_anchor.text_anchor, cx)
4230 {
4231 for (buffer, edits) in ranges {
4232 linked_edits.entry(buffer.clone()).or_default().extend(
4233 edits
4234 .into_iter()
4235 .map(|range| (range, text[common_prefix_len..].to_owned())),
4236 );
4237 }
4238 }
4239 }
4240 }
4241 let text = &text[common_prefix_len..];
4242
4243 cx.emit(EditorEvent::InputHandled {
4244 utf16_range_to_replace: range_to_replace,
4245 text: text.into(),
4246 });
4247
4248 self.transact(cx, |this, cx| {
4249 if let Some(mut snippet) = snippet {
4250 snippet.text = text.to_string();
4251 for tabstop in snippet.tabstops.iter_mut().flatten() {
4252 tabstop.start -= common_prefix_len as isize;
4253 tabstop.end -= common_prefix_len as isize;
4254 }
4255
4256 this.insert_snippet(&ranges, snippet, cx).log_err();
4257 } else {
4258 this.buffer.update(cx, |buffer, cx| {
4259 buffer.edit(
4260 ranges.iter().map(|range| (range.clone(), text)),
4261 this.autoindent_mode.clone(),
4262 cx,
4263 );
4264 });
4265 }
4266 for (buffer, edits) in linked_edits {
4267 buffer.update(cx, |buffer, cx| {
4268 let snapshot = buffer.snapshot();
4269 let edits = edits
4270 .into_iter()
4271 .map(|(range, text)| {
4272 use text::ToPoint as TP;
4273 let end_point = TP::to_point(&range.end, &snapshot);
4274 let start_point = TP::to_point(&range.start, &snapshot);
4275 (start_point..end_point, text)
4276 })
4277 .sorted_by_key(|(range, _)| range.start)
4278 .collect::<Vec<_>>();
4279 buffer.edit(edits, None, cx);
4280 })
4281 }
4282
4283 this.refresh_inline_completion(true, cx);
4284 });
4285
4286 if let Some(confirm) = completion.confirm.as_ref() {
4287 (confirm)(cx);
4288 }
4289
4290 if completion.show_new_completions_on_confirm {
4291 self.show_completions(&ShowCompletions { trigger: None }, cx);
4292 }
4293
4294 let provider = self.completion_provider.as_ref()?;
4295 let apply_edits = provider.apply_additional_edits_for_completion(
4296 buffer_handle,
4297 completion.clone(),
4298 true,
4299 cx,
4300 );
4301 Some(cx.foreground_executor().spawn(async move {
4302 apply_edits.await?;
4303 Ok(())
4304 }))
4305 }
4306
4307 pub fn toggle_code_actions(&mut self, action: &ToggleCodeActions, cx: &mut ViewContext<Self>) {
4308 let mut context_menu = self.context_menu.write();
4309 if let Some(ContextMenu::CodeActions(code_actions)) = context_menu.as_ref() {
4310 if code_actions.deployed_from_indicator == action.deployed_from_indicator {
4311 // Toggle if we're selecting the same one
4312 *context_menu = None;
4313 cx.notify();
4314 return;
4315 } else {
4316 // Otherwise, clear it and start a new one
4317 *context_menu = None;
4318 cx.notify();
4319 }
4320 }
4321 drop(context_menu);
4322 let snapshot = self.snapshot(cx);
4323 let deployed_from_indicator = action.deployed_from_indicator;
4324 let mut task = self.code_actions_task.take();
4325 let action = action.clone();
4326 cx.spawn(|editor, mut cx| async move {
4327 while let Some(prev_task) = task {
4328 prev_task.await;
4329 task = editor.update(&mut cx, |this, _| this.code_actions_task.take())?;
4330 }
4331
4332 let spawned_test_task = editor.update(&mut cx, |editor, cx| {
4333 if editor.focus_handle.is_focused(cx) {
4334 let multibuffer_point = action
4335 .deployed_from_indicator
4336 .map(|row| DisplayPoint::new(row, 0).to_point(&snapshot))
4337 .unwrap_or_else(|| editor.selections.newest::<Point>(cx).head());
4338 let (buffer, buffer_row) = snapshot
4339 .buffer_snapshot
4340 .buffer_line_for_row(MultiBufferRow(multibuffer_point.row))
4341 .and_then(|(buffer_snapshot, range)| {
4342 editor
4343 .buffer
4344 .read(cx)
4345 .buffer(buffer_snapshot.remote_id())
4346 .map(|buffer| (buffer, range.start.row))
4347 })?;
4348 let (_, code_actions) = editor
4349 .available_code_actions
4350 .clone()
4351 .and_then(|(location, code_actions)| {
4352 let snapshot = location.buffer.read(cx).snapshot();
4353 let point_range = location.range.to_point(&snapshot);
4354 let point_range = point_range.start.row..=point_range.end.row;
4355 if point_range.contains(&buffer_row) {
4356 Some((location, code_actions))
4357 } else {
4358 None
4359 }
4360 })
4361 .unzip();
4362 let buffer_id = buffer.read(cx).remote_id();
4363 let tasks = editor
4364 .tasks
4365 .get(&(buffer_id, buffer_row))
4366 .map(|t| Arc::new(t.to_owned()));
4367 if tasks.is_none() && code_actions.is_none() {
4368 return None;
4369 }
4370
4371 editor.completion_tasks.clear();
4372 editor.discard_inline_completion(false, cx);
4373 let task_context =
4374 tasks
4375 .as_ref()
4376 .zip(editor.project.clone())
4377 .map(|(tasks, project)| {
4378 let position = Point::new(buffer_row, tasks.column);
4379 let range_start = buffer.read(cx).anchor_at(position, Bias::Right);
4380 let location = Location {
4381 buffer: buffer.clone(),
4382 range: range_start..range_start,
4383 };
4384 // Fill in the environmental variables from the tree-sitter captures
4385 let mut captured_task_variables = TaskVariables::default();
4386 for (capture_name, value) in tasks.extra_variables.clone() {
4387 captured_task_variables.insert(
4388 task::VariableName::Custom(capture_name.into()),
4389 value.clone(),
4390 );
4391 }
4392 project.update(cx, |project, cx| {
4393 project.task_context_for_location(
4394 captured_task_variables,
4395 location,
4396 cx,
4397 )
4398 })
4399 });
4400
4401 Some(cx.spawn(|editor, mut cx| async move {
4402 let task_context = match task_context {
4403 Some(task_context) => task_context.await,
4404 None => None,
4405 };
4406 let resolved_tasks =
4407 tasks.zip(task_context).map(|(tasks, task_context)| {
4408 Arc::new(ResolvedTasks {
4409 templates: tasks
4410 .templates
4411 .iter()
4412 .filter_map(|(kind, template)| {
4413 template
4414 .resolve_task(&kind.to_id_base(), &task_context)
4415 .map(|task| (kind.clone(), task))
4416 })
4417 .collect(),
4418 position: snapshot.buffer_snapshot.anchor_before(Point::new(
4419 multibuffer_point.row,
4420 tasks.column,
4421 )),
4422 })
4423 });
4424 let spawn_straight_away = resolved_tasks
4425 .as_ref()
4426 .map_or(false, |tasks| tasks.templates.len() == 1)
4427 && code_actions
4428 .as_ref()
4429 .map_or(true, |actions| actions.is_empty());
4430 if let Some(task) = editor
4431 .update(&mut cx, |editor, cx| {
4432 *editor.context_menu.write() =
4433 Some(ContextMenu::CodeActions(CodeActionsMenu {
4434 buffer,
4435 actions: CodeActionContents {
4436 tasks: resolved_tasks,
4437 actions: code_actions,
4438 },
4439 selected_item: Default::default(),
4440 scroll_handle: UniformListScrollHandle::default(),
4441 deployed_from_indicator,
4442 }));
4443 if spawn_straight_away {
4444 if let Some(task) = editor.confirm_code_action(
4445 &ConfirmCodeAction { item_ix: Some(0) },
4446 cx,
4447 ) {
4448 cx.notify();
4449 return task;
4450 }
4451 }
4452 cx.notify();
4453 Task::ready(Ok(()))
4454 })
4455 .ok()
4456 {
4457 task.await
4458 } else {
4459 Ok(())
4460 }
4461 }))
4462 } else {
4463 Some(Task::ready(Ok(())))
4464 }
4465 })?;
4466 if let Some(task) = spawned_test_task {
4467 task.await?;
4468 }
4469
4470 Ok::<_, anyhow::Error>(())
4471 })
4472 .detach_and_log_err(cx);
4473 }
4474
4475 pub fn confirm_code_action(
4476 &mut self,
4477 action: &ConfirmCodeAction,
4478 cx: &mut ViewContext<Self>,
4479 ) -> Option<Task<Result<()>>> {
4480 let actions_menu = if let ContextMenu::CodeActions(menu) = self.hide_context_menu(cx)? {
4481 menu
4482 } else {
4483 return None;
4484 };
4485 let action_ix = action.item_ix.unwrap_or(actions_menu.selected_item);
4486 let action = actions_menu.actions.get(action_ix)?;
4487 let title = action.label();
4488 let buffer = actions_menu.buffer;
4489 let workspace = self.workspace()?;
4490
4491 match action {
4492 CodeActionsItem::Task(task_source_kind, resolved_task) => {
4493 workspace.update(cx, |workspace, cx| {
4494 workspace::tasks::schedule_resolved_task(
4495 workspace,
4496 task_source_kind,
4497 resolved_task,
4498 false,
4499 cx,
4500 );
4501
4502 Some(Task::ready(Ok(())))
4503 })
4504 }
4505 CodeActionsItem::CodeAction(action) => {
4506 let apply_code_actions = workspace
4507 .read(cx)
4508 .project()
4509 .clone()
4510 .update(cx, |project, cx| {
4511 project.apply_code_action(buffer, action, true, cx)
4512 });
4513 let workspace = workspace.downgrade();
4514 Some(cx.spawn(|editor, cx| async move {
4515 let project_transaction = apply_code_actions.await?;
4516 Self::open_project_transaction(
4517 &editor,
4518 workspace,
4519 project_transaction,
4520 title,
4521 cx,
4522 )
4523 .await
4524 }))
4525 }
4526 }
4527 }
4528
4529 pub async fn open_project_transaction(
4530 this: &WeakView<Editor>,
4531 workspace: WeakView<Workspace>,
4532 transaction: ProjectTransaction,
4533 title: String,
4534 mut cx: AsyncWindowContext,
4535 ) -> Result<()> {
4536 let replica_id = this.update(&mut cx, |this, cx| this.replica_id(cx))?;
4537
4538 let mut entries = transaction.0.into_iter().collect::<Vec<_>>();
4539 cx.update(|cx| {
4540 entries.sort_unstable_by_key(|(buffer, _)| {
4541 buffer.read(cx).file().map(|f| f.path().clone())
4542 });
4543 })?;
4544
4545 // If the project transaction's edits are all contained within this editor, then
4546 // avoid opening a new editor to display them.
4547
4548 if let Some((buffer, transaction)) = entries.first() {
4549 if entries.len() == 1 {
4550 let excerpt = this.update(&mut cx, |editor, cx| {
4551 editor
4552 .buffer()
4553 .read(cx)
4554 .excerpt_containing(editor.selections.newest_anchor().head(), cx)
4555 })?;
4556 if let Some((_, excerpted_buffer, excerpt_range)) = excerpt {
4557 if excerpted_buffer == *buffer {
4558 let all_edits_within_excerpt = buffer.read_with(&cx, |buffer, _| {
4559 let excerpt_range = excerpt_range.to_offset(buffer);
4560 buffer
4561 .edited_ranges_for_transaction::<usize>(transaction)
4562 .all(|range| {
4563 excerpt_range.start <= range.start
4564 && excerpt_range.end >= range.end
4565 })
4566 })?;
4567
4568 if all_edits_within_excerpt {
4569 return Ok(());
4570 }
4571 }
4572 }
4573 }
4574 } else {
4575 return Ok(());
4576 }
4577
4578 let mut ranges_to_highlight = Vec::new();
4579 let excerpt_buffer = cx.new_model(|cx| {
4580 let mut multibuffer =
4581 MultiBuffer::new(replica_id, Capability::ReadWrite).with_title(title);
4582 for (buffer_handle, transaction) in &entries {
4583 let buffer = buffer_handle.read(cx);
4584 ranges_to_highlight.extend(
4585 multibuffer.push_excerpts_with_context_lines(
4586 buffer_handle.clone(),
4587 buffer
4588 .edited_ranges_for_transaction::<usize>(transaction)
4589 .collect(),
4590 DEFAULT_MULTIBUFFER_CONTEXT,
4591 cx,
4592 ),
4593 );
4594 }
4595 multibuffer.push_transaction(entries.iter().map(|(b, t)| (b, t)), cx);
4596 multibuffer
4597 })?;
4598
4599 workspace.update(&mut cx, |workspace, cx| {
4600 let project = workspace.project().clone();
4601 let editor =
4602 cx.new_view(|cx| Editor::for_multibuffer(excerpt_buffer, Some(project), true, cx));
4603 workspace.add_item_to_active_pane(Box::new(editor.clone()), None, cx);
4604 editor.update(cx, |editor, cx| {
4605 editor.highlight_background::<Self>(
4606 &ranges_to_highlight,
4607 |theme| theme.editor_highlighted_line_background,
4608 cx,
4609 );
4610 });
4611 })?;
4612
4613 Ok(())
4614 }
4615
4616 fn refresh_code_actions(&mut self, cx: &mut ViewContext<Self>) -> Option<()> {
4617 let project = self.project.clone()?;
4618 let buffer = self.buffer.read(cx);
4619 let newest_selection = self.selections.newest_anchor().clone();
4620 let (start_buffer, start) = buffer.text_anchor_for_position(newest_selection.start, cx)?;
4621 let (end_buffer, end) = buffer.text_anchor_for_position(newest_selection.end, cx)?;
4622 if start_buffer != end_buffer {
4623 return None;
4624 }
4625
4626 self.code_actions_task = Some(cx.spawn(|this, mut cx| async move {
4627 cx.background_executor()
4628 .timer(CODE_ACTIONS_DEBOUNCE_TIMEOUT)
4629 .await;
4630
4631 let actions = if let Ok(code_actions) = project.update(&mut cx, |project, cx| {
4632 project.code_actions(&start_buffer, start..end, cx)
4633 }) {
4634 code_actions.await
4635 } else {
4636 Vec::new()
4637 };
4638
4639 this.update(&mut cx, |this, cx| {
4640 this.available_code_actions = if actions.is_empty() {
4641 None
4642 } else {
4643 Some((
4644 Location {
4645 buffer: start_buffer,
4646 range: start..end,
4647 },
4648 actions.into(),
4649 ))
4650 };
4651 cx.notify();
4652 })
4653 .log_err();
4654 }));
4655 None
4656 }
4657
4658 fn start_inline_blame_timer(&mut self, cx: &mut ViewContext<Self>) {
4659 if let Some(delay) = ProjectSettings::get_global(cx).git.inline_blame_delay() {
4660 self.show_git_blame_inline = false;
4661
4662 self.show_git_blame_inline_delay_task = Some(cx.spawn(|this, mut cx| async move {
4663 cx.background_executor().timer(delay).await;
4664
4665 this.update(&mut cx, |this, cx| {
4666 this.show_git_blame_inline = true;
4667 cx.notify();
4668 })
4669 .log_err();
4670 }));
4671 }
4672 }
4673
4674 fn refresh_document_highlights(&mut self, cx: &mut ViewContext<Self>) -> Option<()> {
4675 if self.pending_rename.is_some() {
4676 return None;
4677 }
4678
4679 let project = self.project.clone()?;
4680 let buffer = self.buffer.read(cx);
4681 let newest_selection = self.selections.newest_anchor().clone();
4682 let cursor_position = newest_selection.head();
4683 let (cursor_buffer, cursor_buffer_position) =
4684 buffer.text_anchor_for_position(cursor_position, cx)?;
4685 let (tail_buffer, _) = buffer.text_anchor_for_position(newest_selection.tail(), cx)?;
4686 if cursor_buffer != tail_buffer {
4687 return None;
4688 }
4689
4690 self.document_highlights_task = Some(cx.spawn(|this, mut cx| async move {
4691 cx.background_executor()
4692 .timer(DOCUMENT_HIGHLIGHTS_DEBOUNCE_TIMEOUT)
4693 .await;
4694
4695 let highlights = if let Some(highlights) = project
4696 .update(&mut cx, |project, cx| {
4697 project.document_highlights(&cursor_buffer, cursor_buffer_position, cx)
4698 })
4699 .log_err()
4700 {
4701 highlights.await.log_err()
4702 } else {
4703 None
4704 };
4705
4706 if let Some(highlights) = highlights {
4707 this.update(&mut cx, |this, cx| {
4708 if this.pending_rename.is_some() {
4709 return;
4710 }
4711
4712 let buffer_id = cursor_position.buffer_id;
4713 let buffer = this.buffer.read(cx);
4714 if !buffer
4715 .text_anchor_for_position(cursor_position, cx)
4716 .map_or(false, |(buffer, _)| buffer == cursor_buffer)
4717 {
4718 return;
4719 }
4720
4721 let cursor_buffer_snapshot = cursor_buffer.read(cx);
4722 let mut write_ranges = Vec::new();
4723 let mut read_ranges = Vec::new();
4724 for highlight in highlights {
4725 for (excerpt_id, excerpt_range) in
4726 buffer.excerpts_for_buffer(&cursor_buffer, cx)
4727 {
4728 let start = highlight
4729 .range
4730 .start
4731 .max(&excerpt_range.context.start, cursor_buffer_snapshot);
4732 let end = highlight
4733 .range
4734 .end
4735 .min(&excerpt_range.context.end, cursor_buffer_snapshot);
4736 if start.cmp(&end, cursor_buffer_snapshot).is_ge() {
4737 continue;
4738 }
4739
4740 let range = Anchor {
4741 buffer_id,
4742 excerpt_id: excerpt_id,
4743 text_anchor: start,
4744 }..Anchor {
4745 buffer_id,
4746 excerpt_id,
4747 text_anchor: end,
4748 };
4749 if highlight.kind == lsp::DocumentHighlightKind::WRITE {
4750 write_ranges.push(range);
4751 } else {
4752 read_ranges.push(range);
4753 }
4754 }
4755 }
4756
4757 this.highlight_background::<DocumentHighlightRead>(
4758 &read_ranges,
4759 |theme| theme.editor_document_highlight_read_background,
4760 cx,
4761 );
4762 this.highlight_background::<DocumentHighlightWrite>(
4763 &write_ranges,
4764 |theme| theme.editor_document_highlight_write_background,
4765 cx,
4766 );
4767 cx.notify();
4768 })
4769 .log_err();
4770 }
4771 }));
4772 None
4773 }
4774
4775 fn refresh_inline_completion(
4776 &mut self,
4777 debounce: bool,
4778 cx: &mut ViewContext<Self>,
4779 ) -> Option<()> {
4780 let provider = self.inline_completion_provider()?;
4781 let cursor = self.selections.newest_anchor().head();
4782 let (buffer, cursor_buffer_position) =
4783 self.buffer.read(cx).text_anchor_for_position(cursor, cx)?;
4784 if !self.show_inline_completions
4785 || !provider.is_enabled(&buffer, cursor_buffer_position, cx)
4786 {
4787 self.discard_inline_completion(false, cx);
4788 return None;
4789 }
4790
4791 self.update_visible_inline_completion(cx);
4792 provider.refresh(buffer, cursor_buffer_position, debounce, cx);
4793 Some(())
4794 }
4795
4796 fn cycle_inline_completion(
4797 &mut self,
4798 direction: Direction,
4799 cx: &mut ViewContext<Self>,
4800 ) -> Option<()> {
4801 let provider = self.inline_completion_provider()?;
4802 let cursor = self.selections.newest_anchor().head();
4803 let (buffer, cursor_buffer_position) =
4804 self.buffer.read(cx).text_anchor_for_position(cursor, cx)?;
4805 if !self.show_inline_completions
4806 || !provider.is_enabled(&buffer, cursor_buffer_position, cx)
4807 {
4808 return None;
4809 }
4810
4811 provider.cycle(buffer, cursor_buffer_position, direction, cx);
4812 self.update_visible_inline_completion(cx);
4813
4814 Some(())
4815 }
4816
4817 pub fn show_inline_completion(&mut self, _: &ShowInlineCompletion, cx: &mut ViewContext<Self>) {
4818 if !self.has_active_inline_completion(cx) {
4819 self.refresh_inline_completion(false, cx);
4820 return;
4821 }
4822
4823 self.update_visible_inline_completion(cx);
4824 }
4825
4826 pub fn display_cursor_names(&mut self, _: &DisplayCursorNames, cx: &mut ViewContext<Self>) {
4827 self.show_cursor_names(cx);
4828 }
4829
4830 fn show_cursor_names(&mut self, cx: &mut ViewContext<Self>) {
4831 self.show_cursor_names = true;
4832 cx.notify();
4833 cx.spawn(|this, mut cx| async move {
4834 cx.background_executor().timer(CURSORS_VISIBLE_FOR).await;
4835 this.update(&mut cx, |this, cx| {
4836 this.show_cursor_names = false;
4837 cx.notify()
4838 })
4839 .ok()
4840 })
4841 .detach();
4842 }
4843
4844 pub fn next_inline_completion(&mut self, _: &NextInlineCompletion, cx: &mut ViewContext<Self>) {
4845 if self.has_active_inline_completion(cx) {
4846 self.cycle_inline_completion(Direction::Next, cx);
4847 } else {
4848 let is_copilot_disabled = self.refresh_inline_completion(false, cx).is_none();
4849 if is_copilot_disabled {
4850 cx.propagate();
4851 }
4852 }
4853 }
4854
4855 pub fn previous_inline_completion(
4856 &mut self,
4857 _: &PreviousInlineCompletion,
4858 cx: &mut ViewContext<Self>,
4859 ) {
4860 if self.has_active_inline_completion(cx) {
4861 self.cycle_inline_completion(Direction::Prev, cx);
4862 } else {
4863 let is_copilot_disabled = self.refresh_inline_completion(false, cx).is_none();
4864 if is_copilot_disabled {
4865 cx.propagate();
4866 }
4867 }
4868 }
4869
4870 pub fn accept_inline_completion(
4871 &mut self,
4872 _: &AcceptInlineCompletion,
4873 cx: &mut ViewContext<Self>,
4874 ) {
4875 let Some(completion) = self.take_active_inline_completion(cx) else {
4876 return;
4877 };
4878 if let Some(provider) = self.inline_completion_provider() {
4879 provider.accept(cx);
4880 }
4881
4882 cx.emit(EditorEvent::InputHandled {
4883 utf16_range_to_replace: None,
4884 text: completion.text.to_string().into(),
4885 });
4886 self.insert_with_autoindent_mode(&completion.text.to_string(), None, cx);
4887 self.refresh_inline_completion(true, cx);
4888 cx.notify();
4889 }
4890
4891 pub fn accept_partial_inline_completion(
4892 &mut self,
4893 _: &AcceptPartialInlineCompletion,
4894 cx: &mut ViewContext<Self>,
4895 ) {
4896 if self.selections.count() == 1 && self.has_active_inline_completion(cx) {
4897 if let Some(completion) = self.take_active_inline_completion(cx) {
4898 let mut partial_completion = completion
4899 .text
4900 .chars()
4901 .by_ref()
4902 .take_while(|c| c.is_alphabetic())
4903 .collect::<String>();
4904 if partial_completion.is_empty() {
4905 partial_completion = completion
4906 .text
4907 .chars()
4908 .by_ref()
4909 .take_while(|c| c.is_whitespace() || !c.is_alphabetic())
4910 .collect::<String>();
4911 }
4912
4913 cx.emit(EditorEvent::InputHandled {
4914 utf16_range_to_replace: None,
4915 text: partial_completion.clone().into(),
4916 });
4917 self.insert_with_autoindent_mode(&partial_completion, None, cx);
4918 self.refresh_inline_completion(true, cx);
4919 cx.notify();
4920 }
4921 }
4922 }
4923
4924 fn discard_inline_completion(
4925 &mut self,
4926 should_report_inline_completion_event: bool,
4927 cx: &mut ViewContext<Self>,
4928 ) -> bool {
4929 if let Some(provider) = self.inline_completion_provider() {
4930 provider.discard(should_report_inline_completion_event, cx);
4931 }
4932
4933 self.take_active_inline_completion(cx).is_some()
4934 }
4935
4936 pub fn has_active_inline_completion(&self, cx: &AppContext) -> bool {
4937 if let Some(completion) = self.active_inline_completion.as_ref() {
4938 let buffer = self.buffer.read(cx).read(cx);
4939 completion.position.is_valid(&buffer)
4940 } else {
4941 false
4942 }
4943 }
4944
4945 fn take_active_inline_completion(&mut self, cx: &mut ViewContext<Self>) -> Option<Inlay> {
4946 let completion = self.active_inline_completion.take()?;
4947 self.display_map.update(cx, |map, cx| {
4948 map.splice_inlays(vec![completion.id], Default::default(), cx);
4949 });
4950 let buffer = self.buffer.read(cx).read(cx);
4951
4952 if completion.position.is_valid(&buffer) {
4953 Some(completion)
4954 } else {
4955 None
4956 }
4957 }
4958
4959 fn update_visible_inline_completion(&mut self, cx: &mut ViewContext<Self>) {
4960 let selection = self.selections.newest_anchor();
4961 let cursor = selection.head();
4962
4963 if self.context_menu.read().is_none()
4964 && self.completion_tasks.is_empty()
4965 && selection.start == selection.end
4966 {
4967 if let Some(provider) = self.inline_completion_provider() {
4968 if let Some((buffer, cursor_buffer_position)) =
4969 self.buffer.read(cx).text_anchor_for_position(cursor, cx)
4970 {
4971 if let Some(text) =
4972 provider.active_completion_text(&buffer, cursor_buffer_position, cx)
4973 {
4974 let text = Rope::from(text);
4975 let mut to_remove = Vec::new();
4976 if let Some(completion) = self.active_inline_completion.take() {
4977 to_remove.push(completion.id);
4978 }
4979
4980 let completion_inlay =
4981 Inlay::suggestion(post_inc(&mut self.next_inlay_id), cursor, text);
4982 self.active_inline_completion = Some(completion_inlay.clone());
4983 self.display_map.update(cx, move |map, cx| {
4984 map.splice_inlays(to_remove, vec![completion_inlay], cx)
4985 });
4986 cx.notify();
4987 return;
4988 }
4989 }
4990 }
4991 }
4992
4993 self.discard_inline_completion(false, cx);
4994 }
4995
4996 fn inline_completion_provider(&self) -> Option<Arc<dyn InlineCompletionProviderHandle>> {
4997 Some(self.inline_completion_provider.as_ref()?.provider.clone())
4998 }
4999
5000 fn render_code_actions_indicator(
5001 &self,
5002 _style: &EditorStyle,
5003 row: DisplayRow,
5004 is_active: bool,
5005 cx: &mut ViewContext<Self>,
5006 ) -> Option<IconButton> {
5007 if self.available_code_actions.is_some() {
5008 Some(
5009 IconButton::new("code_actions_indicator", ui::IconName::Bolt)
5010 .shape(ui::IconButtonShape::Square)
5011 .icon_size(IconSize::XSmall)
5012 .icon_color(Color::Muted)
5013 .selected(is_active)
5014 .on_click(cx.listener(move |editor, _e, cx| {
5015 editor.focus(cx);
5016 editor.toggle_code_actions(
5017 &ToggleCodeActions {
5018 deployed_from_indicator: Some(row),
5019 },
5020 cx,
5021 );
5022 })),
5023 )
5024 } else {
5025 None
5026 }
5027 }
5028
5029 fn clear_tasks(&mut self) {
5030 self.tasks.clear()
5031 }
5032
5033 fn insert_tasks(&mut self, key: (BufferId, BufferRow), value: RunnableTasks) {
5034 if let Some(_) = self.tasks.insert(key, value) {
5035 // This case should hopefully be rare, but just in case...
5036 log::error!("multiple different run targets found on a single line, only the last target will be rendered")
5037 }
5038 }
5039
5040 fn render_run_indicator(
5041 &self,
5042 _style: &EditorStyle,
5043 is_active: bool,
5044 row: DisplayRow,
5045 cx: &mut ViewContext<Self>,
5046 ) -> IconButton {
5047 IconButton::new(("run_indicator", row.0 as usize), ui::IconName::Play)
5048 .shape(ui::IconButtonShape::Square)
5049 .icon_size(IconSize::XSmall)
5050 .icon_color(Color::Muted)
5051 .selected(is_active)
5052 .on_click(cx.listener(move |editor, _e, cx| {
5053 editor.focus(cx);
5054 editor.toggle_code_actions(
5055 &ToggleCodeActions {
5056 deployed_from_indicator: Some(row),
5057 },
5058 cx,
5059 );
5060 }))
5061 }
5062
5063 pub fn context_menu_visible(&self) -> bool {
5064 self.context_menu
5065 .read()
5066 .as_ref()
5067 .map_or(false, |menu| menu.visible())
5068 }
5069
5070 fn render_context_menu(
5071 &self,
5072 cursor_position: DisplayPoint,
5073 style: &EditorStyle,
5074 max_height: Pixels,
5075 cx: &mut ViewContext<Editor>,
5076 ) -> Option<(ContextMenuOrigin, AnyElement)> {
5077 self.context_menu.read().as_ref().map(|menu| {
5078 menu.render(
5079 cursor_position,
5080 style,
5081 max_height,
5082 self.workspace.as_ref().map(|(w, _)| w.clone()),
5083 cx,
5084 )
5085 })
5086 }
5087
5088 fn hide_context_menu(&mut self, cx: &mut ViewContext<Self>) -> Option<ContextMenu> {
5089 cx.notify();
5090 self.completion_tasks.clear();
5091 let context_menu = self.context_menu.write().take();
5092 if context_menu.is_some() {
5093 self.update_visible_inline_completion(cx);
5094 }
5095 context_menu
5096 }
5097
5098 pub fn insert_snippet(
5099 &mut self,
5100 insertion_ranges: &[Range<usize>],
5101 snippet: Snippet,
5102 cx: &mut ViewContext<Self>,
5103 ) -> Result<()> {
5104 struct Tabstop<T> {
5105 is_end_tabstop: bool,
5106 ranges: Vec<Range<T>>,
5107 }
5108
5109 let tabstops = self.buffer.update(cx, |buffer, cx| {
5110 let snippet_text: Arc<str> = snippet.text.clone().into();
5111 buffer.edit(
5112 insertion_ranges
5113 .iter()
5114 .cloned()
5115 .map(|range| (range, snippet_text.clone())),
5116 Some(AutoindentMode::EachLine),
5117 cx,
5118 );
5119
5120 let snapshot = &*buffer.read(cx);
5121 let snippet = &snippet;
5122 snippet
5123 .tabstops
5124 .iter()
5125 .map(|tabstop| {
5126 let is_end_tabstop = tabstop.first().map_or(false, |tabstop| {
5127 tabstop.is_empty() && tabstop.start == snippet.text.len() as isize
5128 });
5129 let mut tabstop_ranges = tabstop
5130 .iter()
5131 .flat_map(|tabstop_range| {
5132 let mut delta = 0_isize;
5133 insertion_ranges.iter().map(move |insertion_range| {
5134 let insertion_start = insertion_range.start as isize + delta;
5135 delta +=
5136 snippet.text.len() as isize - insertion_range.len() as isize;
5137
5138 let start = ((insertion_start + tabstop_range.start) as usize)
5139 .min(snapshot.len());
5140 let end = ((insertion_start + tabstop_range.end) as usize)
5141 .min(snapshot.len());
5142 snapshot.anchor_before(start)..snapshot.anchor_after(end)
5143 })
5144 })
5145 .collect::<Vec<_>>();
5146 tabstop_ranges.sort_unstable_by(|a, b| a.start.cmp(&b.start, snapshot));
5147
5148 Tabstop {
5149 is_end_tabstop,
5150 ranges: tabstop_ranges,
5151 }
5152 })
5153 .collect::<Vec<_>>()
5154 });
5155
5156 if let Some(tabstop) = tabstops.first() {
5157 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5158 s.select_ranges(tabstop.ranges.iter().cloned());
5159 });
5160
5161 // If we're already at the last tabstop and it's at the end of the snippet,
5162 // we're done, we don't need to keep the state around.
5163 if !tabstop.is_end_tabstop {
5164 let ranges = tabstops
5165 .into_iter()
5166 .map(|tabstop| tabstop.ranges)
5167 .collect::<Vec<_>>();
5168 self.snippet_stack.push(SnippetState {
5169 active_index: 0,
5170 ranges,
5171 });
5172 }
5173
5174 // Check whether the just-entered snippet ends with an auto-closable bracket.
5175 if self.autoclose_regions.is_empty() {
5176 let snapshot = self.buffer.read(cx).snapshot(cx);
5177 for selection in &mut self.selections.all::<Point>(cx) {
5178 let selection_head = selection.head();
5179 let Some(scope) = snapshot.language_scope_at(selection_head) else {
5180 continue;
5181 };
5182
5183 let mut bracket_pair = None;
5184 let next_chars = snapshot.chars_at(selection_head).collect::<String>();
5185 let prev_chars = snapshot
5186 .reversed_chars_at(selection_head)
5187 .collect::<String>();
5188 for (pair, enabled) in scope.brackets() {
5189 if enabled
5190 && pair.close
5191 && prev_chars.starts_with(pair.start.as_str())
5192 && next_chars.starts_with(pair.end.as_str())
5193 {
5194 bracket_pair = Some(pair.clone());
5195 break;
5196 }
5197 }
5198 if let Some(pair) = bracket_pair {
5199 let start = snapshot.anchor_after(selection_head);
5200 let end = snapshot.anchor_after(selection_head);
5201 self.autoclose_regions.push(AutocloseRegion {
5202 selection_id: selection.id,
5203 range: start..end,
5204 pair,
5205 });
5206 }
5207 }
5208 }
5209 }
5210 Ok(())
5211 }
5212
5213 pub fn move_to_next_snippet_tabstop(&mut self, cx: &mut ViewContext<Self>) -> bool {
5214 self.move_to_snippet_tabstop(Bias::Right, cx)
5215 }
5216
5217 pub fn move_to_prev_snippet_tabstop(&mut self, cx: &mut ViewContext<Self>) -> bool {
5218 self.move_to_snippet_tabstop(Bias::Left, cx)
5219 }
5220
5221 pub fn move_to_snippet_tabstop(&mut self, bias: Bias, cx: &mut ViewContext<Self>) -> bool {
5222 if let Some(mut snippet) = self.snippet_stack.pop() {
5223 match bias {
5224 Bias::Left => {
5225 if snippet.active_index > 0 {
5226 snippet.active_index -= 1;
5227 } else {
5228 self.snippet_stack.push(snippet);
5229 return false;
5230 }
5231 }
5232 Bias::Right => {
5233 if snippet.active_index + 1 < snippet.ranges.len() {
5234 snippet.active_index += 1;
5235 } else {
5236 self.snippet_stack.push(snippet);
5237 return false;
5238 }
5239 }
5240 }
5241 if let Some(current_ranges) = snippet.ranges.get(snippet.active_index) {
5242 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5243 s.select_anchor_ranges(current_ranges.iter().cloned())
5244 });
5245 // If snippet state is not at the last tabstop, push it back on the stack
5246 if snippet.active_index + 1 < snippet.ranges.len() {
5247 self.snippet_stack.push(snippet);
5248 }
5249 return true;
5250 }
5251 }
5252
5253 false
5254 }
5255
5256 pub fn clear(&mut self, cx: &mut ViewContext<Self>) {
5257 self.transact(cx, |this, cx| {
5258 this.select_all(&SelectAll, cx);
5259 this.insert("", cx);
5260 });
5261 }
5262
5263 pub fn backspace(&mut self, _: &Backspace, cx: &mut ViewContext<Self>) {
5264 self.transact(cx, |this, cx| {
5265 this.select_autoclose_pair(cx);
5266 let mut linked_ranges = HashMap::<_, Vec<_>>::default();
5267 if !this.linked_edit_ranges.is_empty() {
5268 let selections = this.selections.all::<MultiBufferPoint>(cx);
5269 let snapshot = this.buffer.read(cx).snapshot(cx);
5270
5271 for selection in selections.iter() {
5272 let selection_start = snapshot.anchor_before(selection.start).text_anchor;
5273 let selection_end = snapshot.anchor_after(selection.end).text_anchor;
5274 if selection_start.buffer_id != selection_end.buffer_id {
5275 continue;
5276 }
5277 if let Some(ranges) =
5278 this.linked_editing_ranges_for(selection_start..selection_end, cx)
5279 {
5280 for (buffer, entries) in ranges {
5281 linked_ranges.entry(buffer).or_default().extend(entries);
5282 }
5283 }
5284 }
5285 }
5286
5287 let mut selections = this.selections.all::<MultiBufferPoint>(cx);
5288 if !this.selections.line_mode {
5289 let display_map = this.display_map.update(cx, |map, cx| map.snapshot(cx));
5290 for selection in &mut selections {
5291 if selection.is_empty() {
5292 let old_head = selection.head();
5293 let mut new_head =
5294 movement::left(&display_map, old_head.to_display_point(&display_map))
5295 .to_point(&display_map);
5296 if let Some((buffer, line_buffer_range)) = display_map
5297 .buffer_snapshot
5298 .buffer_line_for_row(MultiBufferRow(old_head.row))
5299 {
5300 let indent_size =
5301 buffer.indent_size_for_line(line_buffer_range.start.row);
5302 let indent_len = match indent_size.kind {
5303 IndentKind::Space => {
5304 buffer.settings_at(line_buffer_range.start, cx).tab_size
5305 }
5306 IndentKind::Tab => NonZeroU32::new(1).unwrap(),
5307 };
5308 if old_head.column <= indent_size.len && old_head.column > 0 {
5309 let indent_len = indent_len.get();
5310 new_head = cmp::min(
5311 new_head,
5312 MultiBufferPoint::new(
5313 old_head.row,
5314 ((old_head.column - 1) / indent_len) * indent_len,
5315 ),
5316 );
5317 }
5318 }
5319
5320 selection.set_head(new_head, SelectionGoal::None);
5321 }
5322 }
5323 }
5324
5325 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
5326 this.insert("", cx);
5327 let empty_str: Arc<str> = Arc::from("");
5328 for (buffer, edits) in linked_ranges {
5329 let snapshot = buffer.read(cx).snapshot();
5330 use text::ToPoint as TP;
5331
5332 let edits = edits
5333 .into_iter()
5334 .map(|range| {
5335 let end_point = TP::to_point(&range.end, &snapshot);
5336 let mut start_point = TP::to_point(&range.start, &snapshot);
5337
5338 if end_point == start_point {
5339 let offset = text::ToOffset::to_offset(&range.start, &snapshot)
5340 .saturating_sub(1);
5341 start_point = TP::to_point(&offset, &snapshot);
5342 };
5343
5344 (start_point..end_point, empty_str.clone())
5345 })
5346 .sorted_by_key(|(range, _)| range.start)
5347 .collect::<Vec<_>>();
5348 buffer.update(cx, |this, cx| {
5349 this.edit(edits, None, cx);
5350 })
5351 }
5352 this.refresh_inline_completion(true, cx);
5353 linked_editing_ranges::refresh_linked_ranges(this, cx);
5354 });
5355 }
5356
5357 pub fn delete(&mut self, _: &Delete, cx: &mut ViewContext<Self>) {
5358 self.transact(cx, |this, cx| {
5359 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
5360 let line_mode = s.line_mode;
5361 s.move_with(|map, selection| {
5362 if selection.is_empty() && !line_mode {
5363 let cursor = movement::right(map, selection.head());
5364 selection.end = cursor;
5365 selection.reversed = true;
5366 selection.goal = SelectionGoal::None;
5367 }
5368 })
5369 });
5370 this.insert("", cx);
5371 this.refresh_inline_completion(true, cx);
5372 });
5373 }
5374
5375 pub fn tab_prev(&mut self, _: &TabPrev, cx: &mut ViewContext<Self>) {
5376 if self.move_to_prev_snippet_tabstop(cx) {
5377 return;
5378 }
5379
5380 self.outdent(&Outdent, cx);
5381 }
5382
5383 pub fn tab(&mut self, _: &Tab, cx: &mut ViewContext<Self>) {
5384 if self.move_to_next_snippet_tabstop(cx) || self.read_only(cx) {
5385 return;
5386 }
5387
5388 let mut selections = self.selections.all_adjusted(cx);
5389 let buffer = self.buffer.read(cx);
5390 let snapshot = buffer.snapshot(cx);
5391 let rows_iter = selections.iter().map(|s| s.head().row);
5392 let suggested_indents = snapshot.suggested_indents(rows_iter, cx);
5393
5394 let mut edits = Vec::new();
5395 let mut prev_edited_row = 0;
5396 let mut row_delta = 0;
5397 for selection in &mut selections {
5398 if selection.start.row != prev_edited_row {
5399 row_delta = 0;
5400 }
5401 prev_edited_row = selection.end.row;
5402
5403 // If the selection is non-empty, then increase the indentation of the selected lines.
5404 if !selection.is_empty() {
5405 row_delta =
5406 Self::indent_selection(buffer, &snapshot, selection, &mut edits, row_delta, cx);
5407 continue;
5408 }
5409
5410 // If the selection is empty and the cursor is in the leading whitespace before the
5411 // suggested indentation, then auto-indent the line.
5412 let cursor = selection.head();
5413 let current_indent = snapshot.indent_size_for_line(MultiBufferRow(cursor.row));
5414 if let Some(suggested_indent) =
5415 suggested_indents.get(&MultiBufferRow(cursor.row)).copied()
5416 {
5417 if cursor.column < suggested_indent.len
5418 && cursor.column <= current_indent.len
5419 && current_indent.len <= suggested_indent.len
5420 {
5421 selection.start = Point::new(cursor.row, suggested_indent.len);
5422 selection.end = selection.start;
5423 if row_delta == 0 {
5424 edits.extend(Buffer::edit_for_indent_size_adjustment(
5425 cursor.row,
5426 current_indent,
5427 suggested_indent,
5428 ));
5429 row_delta = suggested_indent.len - current_indent.len;
5430 }
5431 continue;
5432 }
5433 }
5434
5435 // Otherwise, insert a hard or soft tab.
5436 let settings = buffer.settings_at(cursor, cx);
5437 let tab_size = if settings.hard_tabs {
5438 IndentSize::tab()
5439 } else {
5440 let tab_size = settings.tab_size.get();
5441 let char_column = snapshot
5442 .text_for_range(Point::new(cursor.row, 0)..cursor)
5443 .flat_map(str::chars)
5444 .count()
5445 + row_delta as usize;
5446 let chars_to_next_tab_stop = tab_size - (char_column as u32 % tab_size);
5447 IndentSize::spaces(chars_to_next_tab_stop)
5448 };
5449 selection.start = Point::new(cursor.row, cursor.column + row_delta + tab_size.len);
5450 selection.end = selection.start;
5451 edits.push((cursor..cursor, tab_size.chars().collect::<String>()));
5452 row_delta += tab_size.len;
5453 }
5454
5455 self.transact(cx, |this, cx| {
5456 this.buffer.update(cx, |b, cx| b.edit(edits, None, cx));
5457 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
5458 this.refresh_inline_completion(true, cx);
5459 });
5460 }
5461
5462 pub fn indent(&mut self, _: &Indent, cx: &mut ViewContext<Self>) {
5463 if self.read_only(cx) {
5464 return;
5465 }
5466 let mut selections = self.selections.all::<Point>(cx);
5467 let mut prev_edited_row = 0;
5468 let mut row_delta = 0;
5469 let mut edits = Vec::new();
5470 let buffer = self.buffer.read(cx);
5471 let snapshot = buffer.snapshot(cx);
5472 for selection in &mut selections {
5473 if selection.start.row != prev_edited_row {
5474 row_delta = 0;
5475 }
5476 prev_edited_row = selection.end.row;
5477
5478 row_delta =
5479 Self::indent_selection(buffer, &snapshot, selection, &mut edits, row_delta, cx);
5480 }
5481
5482 self.transact(cx, |this, cx| {
5483 this.buffer.update(cx, |b, cx| b.edit(edits, None, cx));
5484 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
5485 });
5486 }
5487
5488 fn indent_selection(
5489 buffer: &MultiBuffer,
5490 snapshot: &MultiBufferSnapshot,
5491 selection: &mut Selection<Point>,
5492 edits: &mut Vec<(Range<Point>, String)>,
5493 delta_for_start_row: u32,
5494 cx: &AppContext,
5495 ) -> u32 {
5496 let settings = buffer.settings_at(selection.start, cx);
5497 let tab_size = settings.tab_size.get();
5498 let indent_kind = if settings.hard_tabs {
5499 IndentKind::Tab
5500 } else {
5501 IndentKind::Space
5502 };
5503 let mut start_row = selection.start.row;
5504 let mut end_row = selection.end.row + 1;
5505
5506 // If a selection ends at the beginning of a line, don't indent
5507 // that last line.
5508 if selection.end.column == 0 && selection.end.row > selection.start.row {
5509 end_row -= 1;
5510 }
5511
5512 // Avoid re-indenting a row that has already been indented by a
5513 // previous selection, but still update this selection's column
5514 // to reflect that indentation.
5515 if delta_for_start_row > 0 {
5516 start_row += 1;
5517 selection.start.column += delta_for_start_row;
5518 if selection.end.row == selection.start.row {
5519 selection.end.column += delta_for_start_row;
5520 }
5521 }
5522
5523 let mut delta_for_end_row = 0;
5524 let has_multiple_rows = start_row + 1 != end_row;
5525 for row in start_row..end_row {
5526 let current_indent = snapshot.indent_size_for_line(MultiBufferRow(row));
5527 let indent_delta = match (current_indent.kind, indent_kind) {
5528 (IndentKind::Space, IndentKind::Space) => {
5529 let columns_to_next_tab_stop = tab_size - (current_indent.len % tab_size);
5530 IndentSize::spaces(columns_to_next_tab_stop)
5531 }
5532 (IndentKind::Tab, IndentKind::Space) => IndentSize::spaces(tab_size),
5533 (_, IndentKind::Tab) => IndentSize::tab(),
5534 };
5535
5536 let start = if has_multiple_rows || current_indent.len < selection.start.column {
5537 0
5538 } else {
5539 selection.start.column
5540 };
5541 let row_start = Point::new(row, start);
5542 edits.push((
5543 row_start..row_start,
5544 indent_delta.chars().collect::<String>(),
5545 ));
5546
5547 // Update this selection's endpoints to reflect the indentation.
5548 if row == selection.start.row {
5549 selection.start.column += indent_delta.len;
5550 }
5551 if row == selection.end.row {
5552 selection.end.column += indent_delta.len;
5553 delta_for_end_row = indent_delta.len;
5554 }
5555 }
5556
5557 if selection.start.row == selection.end.row {
5558 delta_for_start_row + delta_for_end_row
5559 } else {
5560 delta_for_end_row
5561 }
5562 }
5563
5564 pub fn outdent(&mut self, _: &Outdent, cx: &mut ViewContext<Self>) {
5565 if self.read_only(cx) {
5566 return;
5567 }
5568 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
5569 let selections = self.selections.all::<Point>(cx);
5570 let mut deletion_ranges = Vec::new();
5571 let mut last_outdent = None;
5572 {
5573 let buffer = self.buffer.read(cx);
5574 let snapshot = buffer.snapshot(cx);
5575 for selection in &selections {
5576 let settings = buffer.settings_at(selection.start, cx);
5577 let tab_size = settings.tab_size.get();
5578 let mut rows = selection.spanned_rows(false, &display_map);
5579
5580 // Avoid re-outdenting a row that has already been outdented by a
5581 // previous selection.
5582 if let Some(last_row) = last_outdent {
5583 if last_row == rows.start {
5584 rows.start = rows.start.next_row();
5585 }
5586 }
5587 let has_multiple_rows = rows.len() > 1;
5588 for row in rows.iter_rows() {
5589 let indent_size = snapshot.indent_size_for_line(row);
5590 if indent_size.len > 0 {
5591 let deletion_len = match indent_size.kind {
5592 IndentKind::Space => {
5593 let columns_to_prev_tab_stop = indent_size.len % tab_size;
5594 if columns_to_prev_tab_stop == 0 {
5595 tab_size
5596 } else {
5597 columns_to_prev_tab_stop
5598 }
5599 }
5600 IndentKind::Tab => 1,
5601 };
5602 let start = if has_multiple_rows
5603 || deletion_len > selection.start.column
5604 || indent_size.len < selection.start.column
5605 {
5606 0
5607 } else {
5608 selection.start.column - deletion_len
5609 };
5610 deletion_ranges.push(
5611 Point::new(row.0, start)..Point::new(row.0, start + deletion_len),
5612 );
5613 last_outdent = Some(row);
5614 }
5615 }
5616 }
5617 }
5618
5619 self.transact(cx, |this, cx| {
5620 this.buffer.update(cx, |buffer, cx| {
5621 let empty_str: Arc<str> = "".into();
5622 buffer.edit(
5623 deletion_ranges
5624 .into_iter()
5625 .map(|range| (range, empty_str.clone())),
5626 None,
5627 cx,
5628 );
5629 });
5630 let selections = this.selections.all::<usize>(cx);
5631 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
5632 });
5633 }
5634
5635 pub fn delete_line(&mut self, _: &DeleteLine, cx: &mut ViewContext<Self>) {
5636 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
5637 let selections = self.selections.all::<Point>(cx);
5638
5639 let mut new_cursors = Vec::new();
5640 let mut edit_ranges = Vec::new();
5641 let mut selections = selections.iter().peekable();
5642 while let Some(selection) = selections.next() {
5643 let mut rows = selection.spanned_rows(false, &display_map);
5644 let goal_display_column = selection.head().to_display_point(&display_map).column();
5645
5646 // Accumulate contiguous regions of rows that we want to delete.
5647 while let Some(next_selection) = selections.peek() {
5648 let next_rows = next_selection.spanned_rows(false, &display_map);
5649 if next_rows.start <= rows.end {
5650 rows.end = next_rows.end;
5651 selections.next().unwrap();
5652 } else {
5653 break;
5654 }
5655 }
5656
5657 let buffer = &display_map.buffer_snapshot;
5658 let mut edit_start = Point::new(rows.start.0, 0).to_offset(buffer);
5659 let edit_end;
5660 let cursor_buffer_row;
5661 if buffer.max_point().row >= rows.end.0 {
5662 // If there's a line after the range, delete the \n from the end of the row range
5663 // and position the cursor on the next line.
5664 edit_end = Point::new(rows.end.0, 0).to_offset(buffer);
5665 cursor_buffer_row = rows.end;
5666 } else {
5667 // If there isn't a line after the range, delete the \n from the line before the
5668 // start of the row range and position the cursor there.
5669 edit_start = edit_start.saturating_sub(1);
5670 edit_end = buffer.len();
5671 cursor_buffer_row = rows.start.previous_row();
5672 }
5673
5674 let mut cursor = Point::new(cursor_buffer_row.0, 0).to_display_point(&display_map);
5675 *cursor.column_mut() =
5676 cmp::min(goal_display_column, display_map.line_len(cursor.row()));
5677
5678 new_cursors.push((
5679 selection.id,
5680 buffer.anchor_after(cursor.to_point(&display_map)),
5681 ));
5682 edit_ranges.push(edit_start..edit_end);
5683 }
5684
5685 self.transact(cx, |this, cx| {
5686 let buffer = this.buffer.update(cx, |buffer, cx| {
5687 let empty_str: Arc<str> = "".into();
5688 buffer.edit(
5689 edit_ranges
5690 .into_iter()
5691 .map(|range| (range, empty_str.clone())),
5692 None,
5693 cx,
5694 );
5695 buffer.snapshot(cx)
5696 });
5697 let new_selections = new_cursors
5698 .into_iter()
5699 .map(|(id, cursor)| {
5700 let cursor = cursor.to_point(&buffer);
5701 Selection {
5702 id,
5703 start: cursor,
5704 end: cursor,
5705 reversed: false,
5706 goal: SelectionGoal::None,
5707 }
5708 })
5709 .collect();
5710
5711 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
5712 s.select(new_selections);
5713 });
5714 });
5715 }
5716
5717 pub fn join_lines(&mut self, _: &JoinLines, cx: &mut ViewContext<Self>) {
5718 if self.read_only(cx) {
5719 return;
5720 }
5721 let mut row_ranges = Vec::<Range<MultiBufferRow>>::new();
5722 for selection in self.selections.all::<Point>(cx) {
5723 let start = MultiBufferRow(selection.start.row);
5724 let end = if selection.start.row == selection.end.row {
5725 MultiBufferRow(selection.start.row + 1)
5726 } else {
5727 MultiBufferRow(selection.end.row)
5728 };
5729
5730 if let Some(last_row_range) = row_ranges.last_mut() {
5731 if start <= last_row_range.end {
5732 last_row_range.end = end;
5733 continue;
5734 }
5735 }
5736 row_ranges.push(start..end);
5737 }
5738
5739 let snapshot = self.buffer.read(cx).snapshot(cx);
5740 let mut cursor_positions = Vec::new();
5741 for row_range in &row_ranges {
5742 let anchor = snapshot.anchor_before(Point::new(
5743 row_range.end.previous_row().0,
5744 snapshot.line_len(row_range.end.previous_row()),
5745 ));
5746 cursor_positions.push(anchor..anchor);
5747 }
5748
5749 self.transact(cx, |this, cx| {
5750 for row_range in row_ranges.into_iter().rev() {
5751 for row in row_range.iter_rows().rev() {
5752 let end_of_line = Point::new(row.0, snapshot.line_len(row));
5753 let next_line_row = row.next_row();
5754 let indent = snapshot.indent_size_for_line(next_line_row);
5755 let start_of_next_line = Point::new(next_line_row.0, indent.len);
5756
5757 let replace = if snapshot.line_len(next_line_row) > indent.len {
5758 " "
5759 } else {
5760 ""
5761 };
5762
5763 this.buffer.update(cx, |buffer, cx| {
5764 buffer.edit([(end_of_line..start_of_next_line, replace)], None, cx)
5765 });
5766 }
5767 }
5768
5769 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
5770 s.select_anchor_ranges(cursor_positions)
5771 });
5772 });
5773 }
5774
5775 pub fn sort_lines_case_sensitive(
5776 &mut self,
5777 _: &SortLinesCaseSensitive,
5778 cx: &mut ViewContext<Self>,
5779 ) {
5780 self.manipulate_lines(cx, |lines| lines.sort())
5781 }
5782
5783 pub fn sort_lines_case_insensitive(
5784 &mut self,
5785 _: &SortLinesCaseInsensitive,
5786 cx: &mut ViewContext<Self>,
5787 ) {
5788 self.manipulate_lines(cx, |lines| lines.sort_by_key(|line| line.to_lowercase()))
5789 }
5790
5791 pub fn unique_lines_case_insensitive(
5792 &mut self,
5793 _: &UniqueLinesCaseInsensitive,
5794 cx: &mut ViewContext<Self>,
5795 ) {
5796 self.manipulate_lines(cx, |lines| {
5797 let mut seen = HashSet::default();
5798 lines.retain(|line| seen.insert(line.to_lowercase()));
5799 })
5800 }
5801
5802 pub fn unique_lines_case_sensitive(
5803 &mut self,
5804 _: &UniqueLinesCaseSensitive,
5805 cx: &mut ViewContext<Self>,
5806 ) {
5807 self.manipulate_lines(cx, |lines| {
5808 let mut seen = HashSet::default();
5809 lines.retain(|line| seen.insert(*line));
5810 })
5811 }
5812
5813 pub fn revert_selected_hunks(&mut self, _: &RevertSelectedHunks, cx: &mut ViewContext<Self>) {
5814 let revert_changes = self.gather_revert_changes(&self.selections.disjoint_anchors(), cx);
5815 if !revert_changes.is_empty() {
5816 self.transact(cx, |editor, cx| {
5817 editor.buffer().update(cx, |multi_buffer, cx| {
5818 for (buffer_id, changes) in revert_changes {
5819 if let Some(buffer) = multi_buffer.buffer(buffer_id) {
5820 buffer.update(cx, |buffer, cx| {
5821 buffer.edit(
5822 changes.into_iter().map(|(range, text)| {
5823 (range, text.to_string().map(Arc::<str>::from))
5824 }),
5825 None,
5826 cx,
5827 );
5828 });
5829 }
5830 }
5831 });
5832 editor.change_selections(None, cx, |selections| selections.refresh());
5833 });
5834 }
5835 }
5836
5837 pub fn open_active_item_in_terminal(&mut self, _: &OpenInTerminal, cx: &mut ViewContext<Self>) {
5838 if let Some(working_directory) = self.active_excerpt(cx).and_then(|(_, buffer, _)| {
5839 let project_path = buffer.read(cx).project_path(cx)?;
5840 let project = self.project.as_ref()?.read(cx);
5841 let entry = project.entry_for_path(&project_path, cx)?;
5842 let abs_path = project.absolute_path(&project_path, cx)?;
5843 let parent = if entry.is_symlink {
5844 abs_path.canonicalize().ok()?
5845 } else {
5846 abs_path
5847 }
5848 .parent()?
5849 .to_path_buf();
5850 Some(parent)
5851 }) {
5852 cx.dispatch_action(OpenTerminal { working_directory }.boxed_clone());
5853 }
5854 }
5855
5856 fn gather_revert_changes(
5857 &mut self,
5858 selections: &[Selection<Anchor>],
5859 cx: &mut ViewContext<'_, Editor>,
5860 ) -> HashMap<BufferId, Vec<(Range<text::Anchor>, Rope)>> {
5861 let mut revert_changes = HashMap::default();
5862 self.buffer.update(cx, |multi_buffer, cx| {
5863 let multi_buffer_snapshot = multi_buffer.snapshot(cx);
5864 for hunk in hunks_for_selections(&multi_buffer_snapshot, selections) {
5865 Self::prepare_revert_change(&mut revert_changes, &multi_buffer, &hunk, cx);
5866 }
5867 });
5868 revert_changes
5869 }
5870
5871 fn prepare_revert_change(
5872 revert_changes: &mut HashMap<BufferId, Vec<(Range<text::Anchor>, Rope)>>,
5873 multi_buffer: &MultiBuffer,
5874 hunk: &DiffHunk<MultiBufferRow>,
5875 cx: &mut AppContext,
5876 ) -> Option<()> {
5877 let buffer = multi_buffer.buffer(hunk.buffer_id)?;
5878 let buffer = buffer.read(cx);
5879 let original_text = buffer.diff_base()?.slice(hunk.diff_base_byte_range.clone());
5880 let buffer_snapshot = buffer.snapshot();
5881 let buffer_revert_changes = revert_changes.entry(buffer.remote_id()).or_default();
5882 if let Err(i) = buffer_revert_changes.binary_search_by(|probe| {
5883 probe
5884 .0
5885 .start
5886 .cmp(&hunk.buffer_range.start, &buffer_snapshot)
5887 .then(probe.0.end.cmp(&hunk.buffer_range.end, &buffer_snapshot))
5888 }) {
5889 buffer_revert_changes.insert(i, (hunk.buffer_range.clone(), original_text));
5890 Some(())
5891 } else {
5892 None
5893 }
5894 }
5895
5896 pub fn reverse_lines(&mut self, _: &ReverseLines, cx: &mut ViewContext<Self>) {
5897 self.manipulate_lines(cx, |lines| lines.reverse())
5898 }
5899
5900 pub fn shuffle_lines(&mut self, _: &ShuffleLines, cx: &mut ViewContext<Self>) {
5901 self.manipulate_lines(cx, |lines| lines.shuffle(&mut thread_rng()))
5902 }
5903
5904 fn manipulate_lines<Fn>(&mut self, cx: &mut ViewContext<Self>, mut callback: Fn)
5905 where
5906 Fn: FnMut(&mut Vec<&str>),
5907 {
5908 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
5909 let buffer = self.buffer.read(cx).snapshot(cx);
5910
5911 let mut edits = Vec::new();
5912
5913 let selections = self.selections.all::<Point>(cx);
5914 let mut selections = selections.iter().peekable();
5915 let mut contiguous_row_selections = Vec::new();
5916 let mut new_selections = Vec::new();
5917 let mut added_lines = 0;
5918 let mut removed_lines = 0;
5919
5920 while let Some(selection) = selections.next() {
5921 let (start_row, end_row) = consume_contiguous_rows(
5922 &mut contiguous_row_selections,
5923 selection,
5924 &display_map,
5925 &mut selections,
5926 );
5927
5928 let start_point = Point::new(start_row.0, 0);
5929 let end_point = Point::new(
5930 end_row.previous_row().0,
5931 buffer.line_len(end_row.previous_row()),
5932 );
5933 let text = buffer
5934 .text_for_range(start_point..end_point)
5935 .collect::<String>();
5936
5937 let mut lines = text.split('\n').collect_vec();
5938
5939 let lines_before = lines.len();
5940 callback(&mut lines);
5941 let lines_after = lines.len();
5942
5943 edits.push((start_point..end_point, lines.join("\n")));
5944
5945 // Selections must change based on added and removed line count
5946 let start_row =
5947 MultiBufferRow(start_point.row + added_lines as u32 - removed_lines as u32);
5948 let end_row = MultiBufferRow(start_row.0 + lines_after.saturating_sub(1) as u32);
5949 new_selections.push(Selection {
5950 id: selection.id,
5951 start: start_row,
5952 end: end_row,
5953 goal: SelectionGoal::None,
5954 reversed: selection.reversed,
5955 });
5956
5957 if lines_after > lines_before {
5958 added_lines += lines_after - lines_before;
5959 } else if lines_before > lines_after {
5960 removed_lines += lines_before - lines_after;
5961 }
5962 }
5963
5964 self.transact(cx, |this, cx| {
5965 let buffer = this.buffer.update(cx, |buffer, cx| {
5966 buffer.edit(edits, None, cx);
5967 buffer.snapshot(cx)
5968 });
5969
5970 // Recalculate offsets on newly edited buffer
5971 let new_selections = new_selections
5972 .iter()
5973 .map(|s| {
5974 let start_point = Point::new(s.start.0, 0);
5975 let end_point = Point::new(s.end.0, buffer.line_len(s.end));
5976 Selection {
5977 id: s.id,
5978 start: buffer.point_to_offset(start_point),
5979 end: buffer.point_to_offset(end_point),
5980 goal: s.goal,
5981 reversed: s.reversed,
5982 }
5983 })
5984 .collect();
5985
5986 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
5987 s.select(new_selections);
5988 });
5989
5990 this.request_autoscroll(Autoscroll::fit(), cx);
5991 });
5992 }
5993
5994 pub fn convert_to_upper_case(&mut self, _: &ConvertToUpperCase, cx: &mut ViewContext<Self>) {
5995 self.manipulate_text(cx, |text| text.to_uppercase())
5996 }
5997
5998 pub fn convert_to_lower_case(&mut self, _: &ConvertToLowerCase, cx: &mut ViewContext<Self>) {
5999 self.manipulate_text(cx, |text| text.to_lowercase())
6000 }
6001
6002 pub fn convert_to_title_case(&mut self, _: &ConvertToTitleCase, cx: &mut ViewContext<Self>) {
6003 self.manipulate_text(cx, |text| {
6004 // Hack to get around the fact that to_case crate doesn't support '\n' as a word boundary
6005 // https://github.com/rutrum/convert-case/issues/16
6006 text.split('\n')
6007 .map(|line| line.to_case(Case::Title))
6008 .join("\n")
6009 })
6010 }
6011
6012 pub fn convert_to_snake_case(&mut self, _: &ConvertToSnakeCase, cx: &mut ViewContext<Self>) {
6013 self.manipulate_text(cx, |text| text.to_case(Case::Snake))
6014 }
6015
6016 pub fn convert_to_kebab_case(&mut self, _: &ConvertToKebabCase, cx: &mut ViewContext<Self>) {
6017 self.manipulate_text(cx, |text| text.to_case(Case::Kebab))
6018 }
6019
6020 pub fn convert_to_upper_camel_case(
6021 &mut self,
6022 _: &ConvertToUpperCamelCase,
6023 cx: &mut ViewContext<Self>,
6024 ) {
6025 self.manipulate_text(cx, |text| {
6026 // Hack to get around the fact that to_case crate doesn't support '\n' as a word boundary
6027 // https://github.com/rutrum/convert-case/issues/16
6028 text.split('\n')
6029 .map(|line| line.to_case(Case::UpperCamel))
6030 .join("\n")
6031 })
6032 }
6033
6034 pub fn convert_to_lower_camel_case(
6035 &mut self,
6036 _: &ConvertToLowerCamelCase,
6037 cx: &mut ViewContext<Self>,
6038 ) {
6039 self.manipulate_text(cx, |text| text.to_case(Case::Camel))
6040 }
6041
6042 pub fn convert_to_opposite_case(
6043 &mut self,
6044 _: &ConvertToOppositeCase,
6045 cx: &mut ViewContext<Self>,
6046 ) {
6047 self.manipulate_text(cx, |text| {
6048 text.chars()
6049 .fold(String::with_capacity(text.len()), |mut t, c| {
6050 if c.is_uppercase() {
6051 t.extend(c.to_lowercase());
6052 } else {
6053 t.extend(c.to_uppercase());
6054 }
6055 t
6056 })
6057 })
6058 }
6059
6060 fn manipulate_text<Fn>(&mut self, cx: &mut ViewContext<Self>, mut callback: Fn)
6061 where
6062 Fn: FnMut(&str) -> String,
6063 {
6064 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
6065 let buffer = self.buffer.read(cx).snapshot(cx);
6066
6067 let mut new_selections = Vec::new();
6068 let mut edits = Vec::new();
6069 let mut selection_adjustment = 0i32;
6070
6071 for selection in self.selections.all::<usize>(cx) {
6072 let selection_is_empty = selection.is_empty();
6073
6074 let (start, end) = if selection_is_empty {
6075 let word_range = movement::surrounding_word(
6076 &display_map,
6077 selection.start.to_display_point(&display_map),
6078 );
6079 let start = word_range.start.to_offset(&display_map, Bias::Left);
6080 let end = word_range.end.to_offset(&display_map, Bias::Left);
6081 (start, end)
6082 } else {
6083 (selection.start, selection.end)
6084 };
6085
6086 let text = buffer.text_for_range(start..end).collect::<String>();
6087 let old_length = text.len() as i32;
6088 let text = callback(&text);
6089
6090 new_selections.push(Selection {
6091 start: (start as i32 - selection_adjustment) as usize,
6092 end: ((start + text.len()) as i32 - selection_adjustment) as usize,
6093 goal: SelectionGoal::None,
6094 ..selection
6095 });
6096
6097 selection_adjustment += old_length - text.len() as i32;
6098
6099 edits.push((start..end, text));
6100 }
6101
6102 self.transact(cx, |this, cx| {
6103 this.buffer.update(cx, |buffer, cx| {
6104 buffer.edit(edits, None, cx);
6105 });
6106
6107 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6108 s.select(new_selections);
6109 });
6110
6111 this.request_autoscroll(Autoscroll::fit(), cx);
6112 });
6113 }
6114
6115 pub fn duplicate_line(&mut self, upwards: bool, cx: &mut ViewContext<Self>) {
6116 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
6117 let buffer = &display_map.buffer_snapshot;
6118 let selections = self.selections.all::<Point>(cx);
6119
6120 let mut edits = Vec::new();
6121 let mut selections_iter = selections.iter().peekable();
6122 while let Some(selection) = selections_iter.next() {
6123 // Avoid duplicating the same lines twice.
6124 let mut rows = selection.spanned_rows(false, &display_map);
6125
6126 while let Some(next_selection) = selections_iter.peek() {
6127 let next_rows = next_selection.spanned_rows(false, &display_map);
6128 if next_rows.start < rows.end {
6129 rows.end = next_rows.end;
6130 selections_iter.next().unwrap();
6131 } else {
6132 break;
6133 }
6134 }
6135
6136 // Copy the text from the selected row region and splice it either at the start
6137 // or end of the region.
6138 let start = Point::new(rows.start.0, 0);
6139 let end = Point::new(
6140 rows.end.previous_row().0,
6141 buffer.line_len(rows.end.previous_row()),
6142 );
6143 let text = buffer
6144 .text_for_range(start..end)
6145 .chain(Some("\n"))
6146 .collect::<String>();
6147 let insert_location = if upwards {
6148 Point::new(rows.end.0, 0)
6149 } else {
6150 start
6151 };
6152 edits.push((insert_location..insert_location, text));
6153 }
6154
6155 self.transact(cx, |this, cx| {
6156 this.buffer.update(cx, |buffer, cx| {
6157 buffer.edit(edits, None, cx);
6158 });
6159
6160 this.request_autoscroll(Autoscroll::fit(), cx);
6161 });
6162 }
6163
6164 pub fn duplicate_line_up(&mut self, _: &DuplicateLineUp, cx: &mut ViewContext<Self>) {
6165 self.duplicate_line(true, cx);
6166 }
6167
6168 pub fn duplicate_line_down(&mut self, _: &DuplicateLineDown, cx: &mut ViewContext<Self>) {
6169 self.duplicate_line(false, cx);
6170 }
6171
6172 pub fn move_line_up(&mut self, _: &MoveLineUp, cx: &mut ViewContext<Self>) {
6173 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
6174 let buffer = self.buffer.read(cx).snapshot(cx);
6175
6176 let mut edits = Vec::new();
6177 let mut unfold_ranges = Vec::new();
6178 let mut refold_ranges = Vec::new();
6179
6180 let selections = self.selections.all::<Point>(cx);
6181 let mut selections = selections.iter().peekable();
6182 let mut contiguous_row_selections = Vec::new();
6183 let mut new_selections = Vec::new();
6184
6185 while let Some(selection) = selections.next() {
6186 // Find all the selections that span a contiguous row range
6187 let (start_row, end_row) = consume_contiguous_rows(
6188 &mut contiguous_row_selections,
6189 selection,
6190 &display_map,
6191 &mut selections,
6192 );
6193
6194 // Move the text spanned by the row range to be before the line preceding the row range
6195 if start_row.0 > 0 {
6196 let range_to_move = Point::new(
6197 start_row.previous_row().0,
6198 buffer.line_len(start_row.previous_row()),
6199 )
6200 ..Point::new(
6201 end_row.previous_row().0,
6202 buffer.line_len(end_row.previous_row()),
6203 );
6204 let insertion_point = display_map
6205 .prev_line_boundary(Point::new(start_row.previous_row().0, 0))
6206 .0;
6207
6208 // Don't move lines across excerpts
6209 if buffer
6210 .excerpt_boundaries_in_range((
6211 Bound::Excluded(insertion_point),
6212 Bound::Included(range_to_move.end),
6213 ))
6214 .next()
6215 .is_none()
6216 {
6217 let text = buffer
6218 .text_for_range(range_to_move.clone())
6219 .flat_map(|s| s.chars())
6220 .skip(1)
6221 .chain(['\n'])
6222 .collect::<String>();
6223
6224 edits.push((
6225 buffer.anchor_after(range_to_move.start)
6226 ..buffer.anchor_before(range_to_move.end),
6227 String::new(),
6228 ));
6229 let insertion_anchor = buffer.anchor_after(insertion_point);
6230 edits.push((insertion_anchor..insertion_anchor, text));
6231
6232 let row_delta = range_to_move.start.row - insertion_point.row + 1;
6233
6234 // Move selections up
6235 new_selections.extend(contiguous_row_selections.drain(..).map(
6236 |mut selection| {
6237 selection.start.row -= row_delta;
6238 selection.end.row -= row_delta;
6239 selection
6240 },
6241 ));
6242
6243 // Move folds up
6244 unfold_ranges.push(range_to_move.clone());
6245 for fold in display_map.folds_in_range(
6246 buffer.anchor_before(range_to_move.start)
6247 ..buffer.anchor_after(range_to_move.end),
6248 ) {
6249 let mut start = fold.range.start.to_point(&buffer);
6250 let mut end = fold.range.end.to_point(&buffer);
6251 start.row -= row_delta;
6252 end.row -= row_delta;
6253 refold_ranges.push((start..end, fold.placeholder.clone()));
6254 }
6255 }
6256 }
6257
6258 // If we didn't move line(s), preserve the existing selections
6259 new_selections.append(&mut contiguous_row_selections);
6260 }
6261
6262 self.transact(cx, |this, cx| {
6263 this.unfold_ranges(unfold_ranges, true, true, cx);
6264 this.buffer.update(cx, |buffer, cx| {
6265 for (range, text) in edits {
6266 buffer.edit([(range, text)], None, cx);
6267 }
6268 });
6269 this.fold_ranges(refold_ranges, true, cx);
6270 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6271 s.select(new_selections);
6272 })
6273 });
6274 }
6275
6276 pub fn move_line_down(&mut self, _: &MoveLineDown, cx: &mut ViewContext<Self>) {
6277 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
6278 let buffer = self.buffer.read(cx).snapshot(cx);
6279
6280 let mut edits = Vec::new();
6281 let mut unfold_ranges = Vec::new();
6282 let mut refold_ranges = Vec::new();
6283
6284 let selections = self.selections.all::<Point>(cx);
6285 let mut selections = selections.iter().peekable();
6286 let mut contiguous_row_selections = Vec::new();
6287 let mut new_selections = Vec::new();
6288
6289 while let Some(selection) = selections.next() {
6290 // Find all the selections that span a contiguous row range
6291 let (start_row, end_row) = consume_contiguous_rows(
6292 &mut contiguous_row_selections,
6293 selection,
6294 &display_map,
6295 &mut selections,
6296 );
6297
6298 // Move the text spanned by the row range to be after the last line of the row range
6299 if end_row.0 <= buffer.max_point().row {
6300 let range_to_move =
6301 MultiBufferPoint::new(start_row.0, 0)..MultiBufferPoint::new(end_row.0, 0);
6302 let insertion_point = display_map
6303 .next_line_boundary(MultiBufferPoint::new(end_row.0, 0))
6304 .0;
6305
6306 // Don't move lines across excerpt boundaries
6307 if buffer
6308 .excerpt_boundaries_in_range((
6309 Bound::Excluded(range_to_move.start),
6310 Bound::Included(insertion_point),
6311 ))
6312 .next()
6313 .is_none()
6314 {
6315 let mut text = String::from("\n");
6316 text.extend(buffer.text_for_range(range_to_move.clone()));
6317 text.pop(); // Drop trailing newline
6318 edits.push((
6319 buffer.anchor_after(range_to_move.start)
6320 ..buffer.anchor_before(range_to_move.end),
6321 String::new(),
6322 ));
6323 let insertion_anchor = buffer.anchor_after(insertion_point);
6324 edits.push((insertion_anchor..insertion_anchor, text));
6325
6326 let row_delta = insertion_point.row - range_to_move.end.row + 1;
6327
6328 // Move selections down
6329 new_selections.extend(contiguous_row_selections.drain(..).map(
6330 |mut selection| {
6331 selection.start.row += row_delta;
6332 selection.end.row += row_delta;
6333 selection
6334 },
6335 ));
6336
6337 // Move folds down
6338 unfold_ranges.push(range_to_move.clone());
6339 for fold in display_map.folds_in_range(
6340 buffer.anchor_before(range_to_move.start)
6341 ..buffer.anchor_after(range_to_move.end),
6342 ) {
6343 let mut start = fold.range.start.to_point(&buffer);
6344 let mut end = fold.range.end.to_point(&buffer);
6345 start.row += row_delta;
6346 end.row += row_delta;
6347 refold_ranges.push((start..end, fold.placeholder.clone()));
6348 }
6349 }
6350 }
6351
6352 // If we didn't move line(s), preserve the existing selections
6353 new_selections.append(&mut contiguous_row_selections);
6354 }
6355
6356 self.transact(cx, |this, cx| {
6357 this.unfold_ranges(unfold_ranges, true, true, cx);
6358 this.buffer.update(cx, |buffer, cx| {
6359 for (range, text) in edits {
6360 buffer.edit([(range, text)], None, cx);
6361 }
6362 });
6363 this.fold_ranges(refold_ranges, true, cx);
6364 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(new_selections));
6365 });
6366 }
6367
6368 pub fn transpose(&mut self, _: &Transpose, cx: &mut ViewContext<Self>) {
6369 let text_layout_details = &self.text_layout_details(cx);
6370 self.transact(cx, |this, cx| {
6371 let edits = this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6372 let mut edits: Vec<(Range<usize>, String)> = Default::default();
6373 let line_mode = s.line_mode;
6374 s.move_with(|display_map, selection| {
6375 if !selection.is_empty() || line_mode {
6376 return;
6377 }
6378
6379 let mut head = selection.head();
6380 let mut transpose_offset = head.to_offset(display_map, Bias::Right);
6381 if head.column() == display_map.line_len(head.row()) {
6382 transpose_offset = display_map
6383 .buffer_snapshot
6384 .clip_offset(transpose_offset.saturating_sub(1), Bias::Left);
6385 }
6386
6387 if transpose_offset == 0 {
6388 return;
6389 }
6390
6391 *head.column_mut() += 1;
6392 head = display_map.clip_point(head, Bias::Right);
6393 let goal = SelectionGoal::HorizontalPosition(
6394 display_map
6395 .x_for_display_point(head, &text_layout_details)
6396 .into(),
6397 );
6398 selection.collapse_to(head, goal);
6399
6400 let transpose_start = display_map
6401 .buffer_snapshot
6402 .clip_offset(transpose_offset.saturating_sub(1), Bias::Left);
6403 if edits.last().map_or(true, |e| e.0.end <= transpose_start) {
6404 let transpose_end = display_map
6405 .buffer_snapshot
6406 .clip_offset(transpose_offset + 1, Bias::Right);
6407 if let Some(ch) =
6408 display_map.buffer_snapshot.chars_at(transpose_start).next()
6409 {
6410 edits.push((transpose_start..transpose_offset, String::new()));
6411 edits.push((transpose_end..transpose_end, ch.to_string()));
6412 }
6413 }
6414 });
6415 edits
6416 });
6417 this.buffer
6418 .update(cx, |buffer, cx| buffer.edit(edits, None, cx));
6419 let selections = this.selections.all::<usize>(cx);
6420 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6421 s.select(selections);
6422 });
6423 });
6424 }
6425
6426 pub fn cut(&mut self, _: &Cut, cx: &mut ViewContext<Self>) {
6427 let mut text = String::new();
6428 let buffer = self.buffer.read(cx).snapshot(cx);
6429 let mut selections = self.selections.all::<Point>(cx);
6430 let mut clipboard_selections = Vec::with_capacity(selections.len());
6431 {
6432 let max_point = buffer.max_point();
6433 let mut is_first = true;
6434 for selection in &mut selections {
6435 let is_entire_line = selection.is_empty() || self.selections.line_mode;
6436 if is_entire_line {
6437 selection.start = Point::new(selection.start.row, 0);
6438 selection.end = cmp::min(max_point, Point::new(selection.end.row + 1, 0));
6439 selection.goal = SelectionGoal::None;
6440 }
6441 if is_first {
6442 is_first = false;
6443 } else {
6444 text += "\n";
6445 }
6446 let mut len = 0;
6447 for chunk in buffer.text_for_range(selection.start..selection.end) {
6448 text.push_str(chunk);
6449 len += chunk.len();
6450 }
6451 clipboard_selections.push(ClipboardSelection {
6452 len,
6453 is_entire_line,
6454 first_line_indent: buffer
6455 .indent_size_for_line(MultiBufferRow(selection.start.row))
6456 .len,
6457 });
6458 }
6459 }
6460
6461 self.transact(cx, |this, cx| {
6462 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6463 s.select(selections);
6464 });
6465 this.insert("", cx);
6466 cx.write_to_clipboard(ClipboardItem::new(text).with_metadata(clipboard_selections));
6467 });
6468 }
6469
6470 pub fn copy(&mut self, _: &Copy, cx: &mut ViewContext<Self>) {
6471 let selections = self.selections.all::<Point>(cx);
6472 let buffer = self.buffer.read(cx).read(cx);
6473 let mut text = String::new();
6474
6475 let mut clipboard_selections = Vec::with_capacity(selections.len());
6476 {
6477 let max_point = buffer.max_point();
6478 let mut is_first = true;
6479 for selection in selections.iter() {
6480 let mut start = selection.start;
6481 let mut end = selection.end;
6482 let is_entire_line = selection.is_empty() || self.selections.line_mode;
6483 if is_entire_line {
6484 start = Point::new(start.row, 0);
6485 end = cmp::min(max_point, Point::new(end.row + 1, 0));
6486 }
6487 if is_first {
6488 is_first = false;
6489 } else {
6490 text += "\n";
6491 }
6492 let mut len = 0;
6493 for chunk in buffer.text_for_range(start..end) {
6494 text.push_str(chunk);
6495 len += chunk.len();
6496 }
6497 clipboard_selections.push(ClipboardSelection {
6498 len,
6499 is_entire_line,
6500 first_line_indent: buffer.indent_size_for_line(MultiBufferRow(start.row)).len,
6501 });
6502 }
6503 }
6504
6505 cx.write_to_clipboard(ClipboardItem::new(text).with_metadata(clipboard_selections));
6506 }
6507
6508 pub fn do_paste(
6509 &mut self,
6510 text: &String,
6511 clipboard_selections: Option<Vec<ClipboardSelection>>,
6512 handle_entire_lines: bool,
6513 cx: &mut ViewContext<Self>,
6514 ) {
6515 if self.read_only(cx) {
6516 return;
6517 }
6518
6519 let clipboard_text = Cow::Borrowed(text);
6520
6521 self.transact(cx, |this, cx| {
6522 if let Some(mut clipboard_selections) = clipboard_selections {
6523 let old_selections = this.selections.all::<usize>(cx);
6524 let all_selections_were_entire_line =
6525 clipboard_selections.iter().all(|s| s.is_entire_line);
6526 let first_selection_indent_column =
6527 clipboard_selections.first().map(|s| s.first_line_indent);
6528 if clipboard_selections.len() != old_selections.len() {
6529 clipboard_selections.drain(..);
6530 }
6531
6532 this.buffer.update(cx, |buffer, cx| {
6533 let snapshot = buffer.read(cx);
6534 let mut start_offset = 0;
6535 let mut edits = Vec::new();
6536 let mut original_indent_columns = Vec::new();
6537 for (ix, selection) in old_selections.iter().enumerate() {
6538 let to_insert;
6539 let entire_line;
6540 let original_indent_column;
6541 if let Some(clipboard_selection) = clipboard_selections.get(ix) {
6542 let end_offset = start_offset + clipboard_selection.len;
6543 to_insert = &clipboard_text[start_offset..end_offset];
6544 entire_line = clipboard_selection.is_entire_line;
6545 start_offset = end_offset + 1;
6546 original_indent_column = Some(clipboard_selection.first_line_indent);
6547 } else {
6548 to_insert = clipboard_text.as_str();
6549 entire_line = all_selections_were_entire_line;
6550 original_indent_column = first_selection_indent_column
6551 }
6552
6553 // If the corresponding selection was empty when this slice of the
6554 // clipboard text was written, then the entire line containing the
6555 // selection was copied. If this selection is also currently empty,
6556 // then paste the line before the current line of the buffer.
6557 let range = if selection.is_empty() && handle_entire_lines && entire_line {
6558 let column = selection.start.to_point(&snapshot).column as usize;
6559 let line_start = selection.start - column;
6560 line_start..line_start
6561 } else {
6562 selection.range()
6563 };
6564
6565 edits.push((range, to_insert));
6566 original_indent_columns.extend(original_indent_column);
6567 }
6568 drop(snapshot);
6569
6570 buffer.edit(
6571 edits,
6572 Some(AutoindentMode::Block {
6573 original_indent_columns,
6574 }),
6575 cx,
6576 );
6577 });
6578
6579 let selections = this.selections.all::<usize>(cx);
6580 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
6581 } else {
6582 this.insert(&clipboard_text, cx);
6583 }
6584 });
6585 }
6586
6587 pub fn paste(&mut self, _: &Paste, cx: &mut ViewContext<Self>) {
6588 if let Some(item) = cx.read_from_clipboard() {
6589 self.do_paste(
6590 item.text(),
6591 item.metadata::<Vec<ClipboardSelection>>(),
6592 true,
6593 cx,
6594 )
6595 };
6596 }
6597
6598 pub fn undo(&mut self, _: &Undo, cx: &mut ViewContext<Self>) {
6599 if self.read_only(cx) {
6600 return;
6601 }
6602
6603 if let Some(transaction_id) = self.buffer.update(cx, |buffer, cx| buffer.undo(cx)) {
6604 if let Some((selections, _)) =
6605 self.selection_history.transaction(transaction_id).cloned()
6606 {
6607 self.change_selections(None, cx, |s| {
6608 s.select_anchors(selections.to_vec());
6609 });
6610 }
6611 self.request_autoscroll(Autoscroll::fit(), cx);
6612 self.unmark_text(cx);
6613 self.refresh_inline_completion(true, cx);
6614 cx.emit(EditorEvent::Edited { transaction_id });
6615 cx.emit(EditorEvent::TransactionUndone { transaction_id });
6616 }
6617 }
6618
6619 pub fn redo(&mut self, _: &Redo, cx: &mut ViewContext<Self>) {
6620 if self.read_only(cx) {
6621 return;
6622 }
6623
6624 if let Some(transaction_id) = self.buffer.update(cx, |buffer, cx| buffer.redo(cx)) {
6625 if let Some((_, Some(selections))) =
6626 self.selection_history.transaction(transaction_id).cloned()
6627 {
6628 self.change_selections(None, cx, |s| {
6629 s.select_anchors(selections.to_vec());
6630 });
6631 }
6632 self.request_autoscroll(Autoscroll::fit(), cx);
6633 self.unmark_text(cx);
6634 self.refresh_inline_completion(true, cx);
6635 cx.emit(EditorEvent::Edited { transaction_id });
6636 }
6637 }
6638
6639 pub fn finalize_last_transaction(&mut self, cx: &mut ViewContext<Self>) {
6640 self.buffer
6641 .update(cx, |buffer, cx| buffer.finalize_last_transaction(cx));
6642 }
6643
6644 pub fn group_until_transaction(&mut self, tx_id: TransactionId, cx: &mut ViewContext<Self>) {
6645 self.buffer
6646 .update(cx, |buffer, cx| buffer.group_until_transaction(tx_id, cx));
6647 }
6648
6649 pub fn move_left(&mut self, _: &MoveLeft, cx: &mut ViewContext<Self>) {
6650 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6651 let line_mode = s.line_mode;
6652 s.move_with(|map, selection| {
6653 let cursor = if selection.is_empty() && !line_mode {
6654 movement::left(map, selection.start)
6655 } else {
6656 selection.start
6657 };
6658 selection.collapse_to(cursor, SelectionGoal::None);
6659 });
6660 })
6661 }
6662
6663 pub fn select_left(&mut self, _: &SelectLeft, cx: &mut ViewContext<Self>) {
6664 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6665 s.move_heads_with(|map, head, _| (movement::left(map, head), SelectionGoal::None));
6666 })
6667 }
6668
6669 pub fn move_right(&mut self, _: &MoveRight, cx: &mut ViewContext<Self>) {
6670 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6671 let line_mode = s.line_mode;
6672 s.move_with(|map, selection| {
6673 let cursor = if selection.is_empty() && !line_mode {
6674 movement::right(map, selection.end)
6675 } else {
6676 selection.end
6677 };
6678 selection.collapse_to(cursor, SelectionGoal::None)
6679 });
6680 })
6681 }
6682
6683 pub fn select_right(&mut self, _: &SelectRight, cx: &mut ViewContext<Self>) {
6684 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6685 s.move_heads_with(|map, head, _| (movement::right(map, head), SelectionGoal::None));
6686 })
6687 }
6688
6689 pub fn move_up(&mut self, _: &MoveUp, cx: &mut ViewContext<Self>) {
6690 if self.take_rename(true, cx).is_some() {
6691 return;
6692 }
6693
6694 if matches!(self.mode, EditorMode::SingleLine { .. }) {
6695 cx.propagate();
6696 return;
6697 }
6698
6699 let text_layout_details = &self.text_layout_details(cx);
6700 let selection_count = self.selections.count();
6701 let first_selection = self.selections.first_anchor();
6702
6703 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6704 let line_mode = s.line_mode;
6705 s.move_with(|map, selection| {
6706 if !selection.is_empty() && !line_mode {
6707 selection.goal = SelectionGoal::None;
6708 }
6709 let (cursor, goal) = movement::up(
6710 map,
6711 selection.start,
6712 selection.goal,
6713 false,
6714 &text_layout_details,
6715 );
6716 selection.collapse_to(cursor, goal);
6717 });
6718 });
6719
6720 if selection_count == 1 && first_selection.range() == self.selections.first_anchor().range()
6721 {
6722 cx.propagate();
6723 }
6724 }
6725
6726 pub fn move_up_by_lines(&mut self, action: &MoveUpByLines, cx: &mut ViewContext<Self>) {
6727 if self.take_rename(true, cx).is_some() {
6728 return;
6729 }
6730
6731 if matches!(self.mode, EditorMode::SingleLine { .. }) {
6732 cx.propagate();
6733 return;
6734 }
6735
6736 let text_layout_details = &self.text_layout_details(cx);
6737
6738 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6739 let line_mode = s.line_mode;
6740 s.move_with(|map, selection| {
6741 if !selection.is_empty() && !line_mode {
6742 selection.goal = SelectionGoal::None;
6743 }
6744 let (cursor, goal) = movement::up_by_rows(
6745 map,
6746 selection.start,
6747 action.lines,
6748 selection.goal,
6749 false,
6750 &text_layout_details,
6751 );
6752 selection.collapse_to(cursor, goal);
6753 });
6754 })
6755 }
6756
6757 pub fn move_down_by_lines(&mut self, action: &MoveDownByLines, cx: &mut ViewContext<Self>) {
6758 if self.take_rename(true, cx).is_some() {
6759 return;
6760 }
6761
6762 if matches!(self.mode, EditorMode::SingleLine { .. }) {
6763 cx.propagate();
6764 return;
6765 }
6766
6767 let text_layout_details = &self.text_layout_details(cx);
6768
6769 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6770 let line_mode = s.line_mode;
6771 s.move_with(|map, selection| {
6772 if !selection.is_empty() && !line_mode {
6773 selection.goal = SelectionGoal::None;
6774 }
6775 let (cursor, goal) = movement::down_by_rows(
6776 map,
6777 selection.start,
6778 action.lines,
6779 selection.goal,
6780 false,
6781 &text_layout_details,
6782 );
6783 selection.collapse_to(cursor, goal);
6784 });
6785 })
6786 }
6787
6788 pub fn select_down_by_lines(&mut self, action: &SelectDownByLines, cx: &mut ViewContext<Self>) {
6789 let text_layout_details = &self.text_layout_details(cx);
6790 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6791 s.move_heads_with(|map, head, goal| {
6792 movement::down_by_rows(map, head, action.lines, goal, false, &text_layout_details)
6793 })
6794 })
6795 }
6796
6797 pub fn select_up_by_lines(&mut self, action: &SelectUpByLines, cx: &mut ViewContext<Self>) {
6798 let text_layout_details = &self.text_layout_details(cx);
6799 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6800 s.move_heads_with(|map, head, goal| {
6801 movement::up_by_rows(map, head, action.lines, goal, false, &text_layout_details)
6802 })
6803 })
6804 }
6805
6806 pub fn select_page_up(&mut self, _: &SelectPageUp, cx: &mut ViewContext<Self>) {
6807 let Some(row_count) = self.visible_row_count() else {
6808 return;
6809 };
6810
6811 let text_layout_details = &self.text_layout_details(cx);
6812
6813 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6814 s.move_heads_with(|map, head, goal| {
6815 movement::up_by_rows(map, head, row_count, goal, false, &text_layout_details)
6816 })
6817 })
6818 }
6819
6820 pub fn move_page_up(&mut self, action: &MovePageUp, cx: &mut ViewContext<Self>) {
6821 if self.take_rename(true, cx).is_some() {
6822 return;
6823 }
6824
6825 if self
6826 .context_menu
6827 .write()
6828 .as_mut()
6829 .map(|menu| menu.select_first(self.project.as_ref(), cx))
6830 .unwrap_or(false)
6831 {
6832 return;
6833 }
6834
6835 if matches!(self.mode, EditorMode::SingleLine { .. }) {
6836 cx.propagate();
6837 return;
6838 }
6839
6840 let Some(row_count) = self.visible_row_count() else {
6841 return;
6842 };
6843
6844 let autoscroll = if action.center_cursor {
6845 Autoscroll::center()
6846 } else {
6847 Autoscroll::fit()
6848 };
6849
6850 let text_layout_details = &self.text_layout_details(cx);
6851
6852 self.change_selections(Some(autoscroll), cx, |s| {
6853 let line_mode = s.line_mode;
6854 s.move_with(|map, selection| {
6855 if !selection.is_empty() && !line_mode {
6856 selection.goal = SelectionGoal::None;
6857 }
6858 let (cursor, goal) = movement::up_by_rows(
6859 map,
6860 selection.end,
6861 row_count,
6862 selection.goal,
6863 false,
6864 &text_layout_details,
6865 );
6866 selection.collapse_to(cursor, goal);
6867 });
6868 });
6869 }
6870
6871 pub fn select_up(&mut self, _: &SelectUp, cx: &mut ViewContext<Self>) {
6872 let text_layout_details = &self.text_layout_details(cx);
6873 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6874 s.move_heads_with(|map, head, goal| {
6875 movement::up(map, head, goal, false, &text_layout_details)
6876 })
6877 })
6878 }
6879
6880 pub fn move_down(&mut self, _: &MoveDown, cx: &mut ViewContext<Self>) {
6881 self.take_rename(true, cx);
6882
6883 if matches!(self.mode, EditorMode::SingleLine { .. }) {
6884 cx.propagate();
6885 return;
6886 }
6887
6888 let text_layout_details = &self.text_layout_details(cx);
6889 let selection_count = self.selections.count();
6890 let first_selection = self.selections.first_anchor();
6891
6892 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6893 let line_mode = s.line_mode;
6894 s.move_with(|map, selection| {
6895 if !selection.is_empty() && !line_mode {
6896 selection.goal = SelectionGoal::None;
6897 }
6898 let (cursor, goal) = movement::down(
6899 map,
6900 selection.end,
6901 selection.goal,
6902 false,
6903 &text_layout_details,
6904 );
6905 selection.collapse_to(cursor, goal);
6906 });
6907 });
6908
6909 if selection_count == 1 && first_selection.range() == self.selections.first_anchor().range()
6910 {
6911 cx.propagate();
6912 }
6913 }
6914
6915 pub fn select_page_down(&mut self, _: &SelectPageDown, cx: &mut ViewContext<Self>) {
6916 let Some(row_count) = self.visible_row_count() else {
6917 return;
6918 };
6919
6920 let text_layout_details = &self.text_layout_details(cx);
6921
6922 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6923 s.move_heads_with(|map, head, goal| {
6924 movement::down_by_rows(map, head, row_count, goal, false, &text_layout_details)
6925 })
6926 })
6927 }
6928
6929 pub fn move_page_down(&mut self, action: &MovePageDown, cx: &mut ViewContext<Self>) {
6930 if self.take_rename(true, cx).is_some() {
6931 return;
6932 }
6933
6934 if self
6935 .context_menu
6936 .write()
6937 .as_mut()
6938 .map(|menu| menu.select_last(self.project.as_ref(), cx))
6939 .unwrap_or(false)
6940 {
6941 return;
6942 }
6943
6944 if matches!(self.mode, EditorMode::SingleLine { .. }) {
6945 cx.propagate();
6946 return;
6947 }
6948
6949 let Some(row_count) = self.visible_row_count() else {
6950 return;
6951 };
6952
6953 let autoscroll = if action.center_cursor {
6954 Autoscroll::center()
6955 } else {
6956 Autoscroll::fit()
6957 };
6958
6959 let text_layout_details = &self.text_layout_details(cx);
6960 self.change_selections(Some(autoscroll), cx, |s| {
6961 let line_mode = s.line_mode;
6962 s.move_with(|map, selection| {
6963 if !selection.is_empty() && !line_mode {
6964 selection.goal = SelectionGoal::None;
6965 }
6966 let (cursor, goal) = movement::down_by_rows(
6967 map,
6968 selection.end,
6969 row_count,
6970 selection.goal,
6971 false,
6972 &text_layout_details,
6973 );
6974 selection.collapse_to(cursor, goal);
6975 });
6976 });
6977 }
6978
6979 pub fn select_down(&mut self, _: &SelectDown, cx: &mut ViewContext<Self>) {
6980 let text_layout_details = &self.text_layout_details(cx);
6981 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6982 s.move_heads_with(|map, head, goal| {
6983 movement::down(map, head, goal, false, &text_layout_details)
6984 })
6985 });
6986 }
6987
6988 pub fn context_menu_first(&mut self, _: &ContextMenuFirst, cx: &mut ViewContext<Self>) {
6989 if let Some(context_menu) = self.context_menu.write().as_mut() {
6990 context_menu.select_first(self.project.as_ref(), cx);
6991 }
6992 }
6993
6994 pub fn context_menu_prev(&mut self, _: &ContextMenuPrev, cx: &mut ViewContext<Self>) {
6995 if let Some(context_menu) = self.context_menu.write().as_mut() {
6996 context_menu.select_prev(self.project.as_ref(), cx);
6997 }
6998 }
6999
7000 pub fn context_menu_next(&mut self, _: &ContextMenuNext, cx: &mut ViewContext<Self>) {
7001 if let Some(context_menu) = self.context_menu.write().as_mut() {
7002 context_menu.select_next(self.project.as_ref(), cx);
7003 }
7004 }
7005
7006 pub fn context_menu_last(&mut self, _: &ContextMenuLast, cx: &mut ViewContext<Self>) {
7007 if let Some(context_menu) = self.context_menu.write().as_mut() {
7008 context_menu.select_last(self.project.as_ref(), cx);
7009 }
7010 }
7011
7012 pub fn move_to_previous_word_start(
7013 &mut self,
7014 _: &MoveToPreviousWordStart,
7015 cx: &mut ViewContext<Self>,
7016 ) {
7017 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7018 s.move_cursors_with(|map, head, _| {
7019 (
7020 movement::previous_word_start(map, head),
7021 SelectionGoal::None,
7022 )
7023 });
7024 })
7025 }
7026
7027 pub fn move_to_previous_subword_start(
7028 &mut self,
7029 _: &MoveToPreviousSubwordStart,
7030 cx: &mut ViewContext<Self>,
7031 ) {
7032 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7033 s.move_cursors_with(|map, head, _| {
7034 (
7035 movement::previous_subword_start(map, head),
7036 SelectionGoal::None,
7037 )
7038 });
7039 })
7040 }
7041
7042 pub fn select_to_previous_word_start(
7043 &mut self,
7044 _: &SelectToPreviousWordStart,
7045 cx: &mut ViewContext<Self>,
7046 ) {
7047 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7048 s.move_heads_with(|map, head, _| {
7049 (
7050 movement::previous_word_start(map, head),
7051 SelectionGoal::None,
7052 )
7053 });
7054 })
7055 }
7056
7057 pub fn select_to_previous_subword_start(
7058 &mut self,
7059 _: &SelectToPreviousSubwordStart,
7060 cx: &mut ViewContext<Self>,
7061 ) {
7062 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7063 s.move_heads_with(|map, head, _| {
7064 (
7065 movement::previous_subword_start(map, head),
7066 SelectionGoal::None,
7067 )
7068 });
7069 })
7070 }
7071
7072 pub fn delete_to_previous_word_start(
7073 &mut self,
7074 _: &DeleteToPreviousWordStart,
7075 cx: &mut ViewContext<Self>,
7076 ) {
7077 self.transact(cx, |this, cx| {
7078 this.select_autoclose_pair(cx);
7079 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
7080 let line_mode = s.line_mode;
7081 s.move_with(|map, selection| {
7082 if selection.is_empty() && !line_mode {
7083 let cursor = movement::previous_word_start(map, selection.head());
7084 selection.set_head(cursor, SelectionGoal::None);
7085 }
7086 });
7087 });
7088 this.insert("", cx);
7089 });
7090 }
7091
7092 pub fn delete_to_previous_subword_start(
7093 &mut self,
7094 _: &DeleteToPreviousSubwordStart,
7095 cx: &mut ViewContext<Self>,
7096 ) {
7097 self.transact(cx, |this, cx| {
7098 this.select_autoclose_pair(cx);
7099 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
7100 let line_mode = s.line_mode;
7101 s.move_with(|map, selection| {
7102 if selection.is_empty() && !line_mode {
7103 let cursor = movement::previous_subword_start(map, selection.head());
7104 selection.set_head(cursor, SelectionGoal::None);
7105 }
7106 });
7107 });
7108 this.insert("", cx);
7109 });
7110 }
7111
7112 pub fn move_to_next_word_end(&mut self, _: &MoveToNextWordEnd, cx: &mut ViewContext<Self>) {
7113 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7114 s.move_cursors_with(|map, head, _| {
7115 (movement::next_word_end(map, head), SelectionGoal::None)
7116 });
7117 })
7118 }
7119
7120 pub fn move_to_next_subword_end(
7121 &mut self,
7122 _: &MoveToNextSubwordEnd,
7123 cx: &mut ViewContext<Self>,
7124 ) {
7125 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7126 s.move_cursors_with(|map, head, _| {
7127 (movement::next_subword_end(map, head), SelectionGoal::None)
7128 });
7129 })
7130 }
7131
7132 pub fn select_to_next_word_end(&mut self, _: &SelectToNextWordEnd, cx: &mut ViewContext<Self>) {
7133 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7134 s.move_heads_with(|map, head, _| {
7135 (movement::next_word_end(map, head), SelectionGoal::None)
7136 });
7137 })
7138 }
7139
7140 pub fn select_to_next_subword_end(
7141 &mut self,
7142 _: &SelectToNextSubwordEnd,
7143 cx: &mut ViewContext<Self>,
7144 ) {
7145 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7146 s.move_heads_with(|map, head, _| {
7147 (movement::next_subword_end(map, head), SelectionGoal::None)
7148 });
7149 })
7150 }
7151
7152 pub fn delete_to_next_word_end(&mut self, _: &DeleteToNextWordEnd, cx: &mut ViewContext<Self>) {
7153 self.transact(cx, |this, cx| {
7154 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
7155 let line_mode = s.line_mode;
7156 s.move_with(|map, selection| {
7157 if selection.is_empty() && !line_mode {
7158 let cursor = movement::next_word_end(map, selection.head());
7159 selection.set_head(cursor, SelectionGoal::None);
7160 }
7161 });
7162 });
7163 this.insert("", cx);
7164 });
7165 }
7166
7167 pub fn delete_to_next_subword_end(
7168 &mut self,
7169 _: &DeleteToNextSubwordEnd,
7170 cx: &mut ViewContext<Self>,
7171 ) {
7172 self.transact(cx, |this, cx| {
7173 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
7174 s.move_with(|map, selection| {
7175 if selection.is_empty() {
7176 let cursor = movement::next_subword_end(map, selection.head());
7177 selection.set_head(cursor, SelectionGoal::None);
7178 }
7179 });
7180 });
7181 this.insert("", cx);
7182 });
7183 }
7184
7185 pub fn move_to_beginning_of_line(
7186 &mut self,
7187 action: &MoveToBeginningOfLine,
7188 cx: &mut ViewContext<Self>,
7189 ) {
7190 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7191 s.move_cursors_with(|map, head, _| {
7192 (
7193 movement::indented_line_beginning(map, head, action.stop_at_soft_wraps),
7194 SelectionGoal::None,
7195 )
7196 });
7197 })
7198 }
7199
7200 pub fn select_to_beginning_of_line(
7201 &mut self,
7202 action: &SelectToBeginningOfLine,
7203 cx: &mut ViewContext<Self>,
7204 ) {
7205 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7206 s.move_heads_with(|map, head, _| {
7207 (
7208 movement::indented_line_beginning(map, head, action.stop_at_soft_wraps),
7209 SelectionGoal::None,
7210 )
7211 });
7212 });
7213 }
7214
7215 pub fn delete_to_beginning_of_line(
7216 &mut self,
7217 _: &DeleteToBeginningOfLine,
7218 cx: &mut ViewContext<Self>,
7219 ) {
7220 self.transact(cx, |this, cx| {
7221 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
7222 s.move_with(|_, selection| {
7223 selection.reversed = true;
7224 });
7225 });
7226
7227 this.select_to_beginning_of_line(
7228 &SelectToBeginningOfLine {
7229 stop_at_soft_wraps: false,
7230 },
7231 cx,
7232 );
7233 this.backspace(&Backspace, cx);
7234 });
7235 }
7236
7237 pub fn move_to_end_of_line(&mut self, action: &MoveToEndOfLine, cx: &mut ViewContext<Self>) {
7238 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7239 s.move_cursors_with(|map, head, _| {
7240 (
7241 movement::line_end(map, head, action.stop_at_soft_wraps),
7242 SelectionGoal::None,
7243 )
7244 });
7245 })
7246 }
7247
7248 pub fn select_to_end_of_line(
7249 &mut self,
7250 action: &SelectToEndOfLine,
7251 cx: &mut ViewContext<Self>,
7252 ) {
7253 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7254 s.move_heads_with(|map, head, _| {
7255 (
7256 movement::line_end(map, head, action.stop_at_soft_wraps),
7257 SelectionGoal::None,
7258 )
7259 });
7260 })
7261 }
7262
7263 pub fn delete_to_end_of_line(&mut self, _: &DeleteToEndOfLine, cx: &mut ViewContext<Self>) {
7264 self.transact(cx, |this, cx| {
7265 this.select_to_end_of_line(
7266 &SelectToEndOfLine {
7267 stop_at_soft_wraps: false,
7268 },
7269 cx,
7270 );
7271 this.delete(&Delete, cx);
7272 });
7273 }
7274
7275 pub fn cut_to_end_of_line(&mut self, _: &CutToEndOfLine, cx: &mut ViewContext<Self>) {
7276 self.transact(cx, |this, cx| {
7277 this.select_to_end_of_line(
7278 &SelectToEndOfLine {
7279 stop_at_soft_wraps: false,
7280 },
7281 cx,
7282 );
7283 this.cut(&Cut, cx);
7284 });
7285 }
7286
7287 pub fn move_to_start_of_paragraph(
7288 &mut self,
7289 _: &MoveToStartOfParagraph,
7290 cx: &mut ViewContext<Self>,
7291 ) {
7292 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7293 cx.propagate();
7294 return;
7295 }
7296
7297 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7298 s.move_with(|map, selection| {
7299 selection.collapse_to(
7300 movement::start_of_paragraph(map, selection.head(), 1),
7301 SelectionGoal::None,
7302 )
7303 });
7304 })
7305 }
7306
7307 pub fn move_to_end_of_paragraph(
7308 &mut self,
7309 _: &MoveToEndOfParagraph,
7310 cx: &mut ViewContext<Self>,
7311 ) {
7312 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7313 cx.propagate();
7314 return;
7315 }
7316
7317 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7318 s.move_with(|map, selection| {
7319 selection.collapse_to(
7320 movement::end_of_paragraph(map, selection.head(), 1),
7321 SelectionGoal::None,
7322 )
7323 });
7324 })
7325 }
7326
7327 pub fn select_to_start_of_paragraph(
7328 &mut self,
7329 _: &SelectToStartOfParagraph,
7330 cx: &mut ViewContext<Self>,
7331 ) {
7332 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7333 cx.propagate();
7334 return;
7335 }
7336
7337 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7338 s.move_heads_with(|map, head, _| {
7339 (
7340 movement::start_of_paragraph(map, head, 1),
7341 SelectionGoal::None,
7342 )
7343 });
7344 })
7345 }
7346
7347 pub fn select_to_end_of_paragraph(
7348 &mut self,
7349 _: &SelectToEndOfParagraph,
7350 cx: &mut ViewContext<Self>,
7351 ) {
7352 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7353 cx.propagate();
7354 return;
7355 }
7356
7357 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7358 s.move_heads_with(|map, head, _| {
7359 (
7360 movement::end_of_paragraph(map, head, 1),
7361 SelectionGoal::None,
7362 )
7363 });
7364 })
7365 }
7366
7367 pub fn move_to_beginning(&mut self, _: &MoveToBeginning, cx: &mut ViewContext<Self>) {
7368 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7369 cx.propagate();
7370 return;
7371 }
7372
7373 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7374 s.select_ranges(vec![0..0]);
7375 });
7376 }
7377
7378 pub fn select_to_beginning(&mut self, _: &SelectToBeginning, cx: &mut ViewContext<Self>) {
7379 let mut selection = self.selections.last::<Point>(cx);
7380 selection.set_head(Point::zero(), SelectionGoal::None);
7381
7382 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7383 s.select(vec![selection]);
7384 });
7385 }
7386
7387 pub fn move_to_end(&mut self, _: &MoveToEnd, cx: &mut ViewContext<Self>) {
7388 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7389 cx.propagate();
7390 return;
7391 }
7392
7393 let cursor = self.buffer.read(cx).read(cx).len();
7394 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7395 s.select_ranges(vec![cursor..cursor])
7396 });
7397 }
7398
7399 pub fn set_nav_history(&mut self, nav_history: Option<ItemNavHistory>) {
7400 self.nav_history = nav_history;
7401 }
7402
7403 pub fn nav_history(&self) -> Option<&ItemNavHistory> {
7404 self.nav_history.as_ref()
7405 }
7406
7407 fn push_to_nav_history(
7408 &mut self,
7409 cursor_anchor: Anchor,
7410 new_position: Option<Point>,
7411 cx: &mut ViewContext<Self>,
7412 ) {
7413 if let Some(nav_history) = self.nav_history.as_mut() {
7414 let buffer = self.buffer.read(cx).read(cx);
7415 let cursor_position = cursor_anchor.to_point(&buffer);
7416 let scroll_state = self.scroll_manager.anchor();
7417 let scroll_top_row = scroll_state.top_row(&buffer);
7418 drop(buffer);
7419
7420 if let Some(new_position) = new_position {
7421 let row_delta = (new_position.row as i64 - cursor_position.row as i64).abs();
7422 if row_delta < MIN_NAVIGATION_HISTORY_ROW_DELTA {
7423 return;
7424 }
7425 }
7426
7427 nav_history.push(
7428 Some(NavigationData {
7429 cursor_anchor,
7430 cursor_position,
7431 scroll_anchor: scroll_state,
7432 scroll_top_row,
7433 }),
7434 cx,
7435 );
7436 }
7437 }
7438
7439 pub fn select_to_end(&mut self, _: &SelectToEnd, cx: &mut ViewContext<Self>) {
7440 let buffer = self.buffer.read(cx).snapshot(cx);
7441 let mut selection = self.selections.first::<usize>(cx);
7442 selection.set_head(buffer.len(), SelectionGoal::None);
7443 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7444 s.select(vec![selection]);
7445 });
7446 }
7447
7448 pub fn select_all(&mut self, _: &SelectAll, cx: &mut ViewContext<Self>) {
7449 let end = self.buffer.read(cx).read(cx).len();
7450 self.change_selections(None, cx, |s| {
7451 s.select_ranges(vec![0..end]);
7452 });
7453 }
7454
7455 pub fn select_line(&mut self, _: &SelectLine, cx: &mut ViewContext<Self>) {
7456 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
7457 let mut selections = self.selections.all::<Point>(cx);
7458 let max_point = display_map.buffer_snapshot.max_point();
7459 for selection in &mut selections {
7460 let rows = selection.spanned_rows(true, &display_map);
7461 selection.start = Point::new(rows.start.0, 0);
7462 selection.end = cmp::min(max_point, Point::new(rows.end.0, 0));
7463 selection.reversed = false;
7464 }
7465 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7466 s.select(selections);
7467 });
7468 }
7469
7470 pub fn split_selection_into_lines(
7471 &mut self,
7472 _: &SplitSelectionIntoLines,
7473 cx: &mut ViewContext<Self>,
7474 ) {
7475 let mut to_unfold = Vec::new();
7476 let mut new_selection_ranges = Vec::new();
7477 {
7478 let selections = self.selections.all::<Point>(cx);
7479 let buffer = self.buffer.read(cx).read(cx);
7480 for selection in selections {
7481 for row in selection.start.row..selection.end.row {
7482 let cursor = Point::new(row, buffer.line_len(MultiBufferRow(row)));
7483 new_selection_ranges.push(cursor..cursor);
7484 }
7485 new_selection_ranges.push(selection.end..selection.end);
7486 to_unfold.push(selection.start..selection.end);
7487 }
7488 }
7489 self.unfold_ranges(to_unfold, true, true, cx);
7490 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7491 s.select_ranges(new_selection_ranges);
7492 });
7493 }
7494
7495 pub fn add_selection_above(&mut self, _: &AddSelectionAbove, cx: &mut ViewContext<Self>) {
7496 self.add_selection(true, cx);
7497 }
7498
7499 pub fn add_selection_below(&mut self, _: &AddSelectionBelow, cx: &mut ViewContext<Self>) {
7500 self.add_selection(false, cx);
7501 }
7502
7503 fn add_selection(&mut self, above: bool, cx: &mut ViewContext<Self>) {
7504 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
7505 let mut selections = self.selections.all::<Point>(cx);
7506 let text_layout_details = self.text_layout_details(cx);
7507 let mut state = self.add_selections_state.take().unwrap_or_else(|| {
7508 let oldest_selection = selections.iter().min_by_key(|s| s.id).unwrap().clone();
7509 let range = oldest_selection.display_range(&display_map).sorted();
7510
7511 let start_x = display_map.x_for_display_point(range.start, &text_layout_details);
7512 let end_x = display_map.x_for_display_point(range.end, &text_layout_details);
7513 let positions = start_x.min(end_x)..start_x.max(end_x);
7514
7515 selections.clear();
7516 let mut stack = Vec::new();
7517 for row in range.start.row().0..=range.end.row().0 {
7518 if let Some(selection) = self.selections.build_columnar_selection(
7519 &display_map,
7520 DisplayRow(row),
7521 &positions,
7522 oldest_selection.reversed,
7523 &text_layout_details,
7524 ) {
7525 stack.push(selection.id);
7526 selections.push(selection);
7527 }
7528 }
7529
7530 if above {
7531 stack.reverse();
7532 }
7533
7534 AddSelectionsState { above, stack }
7535 });
7536
7537 let last_added_selection = *state.stack.last().unwrap();
7538 let mut new_selections = Vec::new();
7539 if above == state.above {
7540 let end_row = if above {
7541 DisplayRow(0)
7542 } else {
7543 display_map.max_point().row()
7544 };
7545
7546 'outer: for selection in selections {
7547 if selection.id == last_added_selection {
7548 let range = selection.display_range(&display_map).sorted();
7549 debug_assert_eq!(range.start.row(), range.end.row());
7550 let mut row = range.start.row();
7551 let positions =
7552 if let SelectionGoal::HorizontalRange { start, end } = selection.goal {
7553 px(start)..px(end)
7554 } else {
7555 let start_x =
7556 display_map.x_for_display_point(range.start, &text_layout_details);
7557 let end_x =
7558 display_map.x_for_display_point(range.end, &text_layout_details);
7559 start_x.min(end_x)..start_x.max(end_x)
7560 };
7561
7562 while row != end_row {
7563 if above {
7564 row.0 -= 1;
7565 } else {
7566 row.0 += 1;
7567 }
7568
7569 if let Some(new_selection) = self.selections.build_columnar_selection(
7570 &display_map,
7571 row,
7572 &positions,
7573 selection.reversed,
7574 &text_layout_details,
7575 ) {
7576 state.stack.push(new_selection.id);
7577 if above {
7578 new_selections.push(new_selection);
7579 new_selections.push(selection);
7580 } else {
7581 new_selections.push(selection);
7582 new_selections.push(new_selection);
7583 }
7584
7585 continue 'outer;
7586 }
7587 }
7588 }
7589
7590 new_selections.push(selection);
7591 }
7592 } else {
7593 new_selections = selections;
7594 new_selections.retain(|s| s.id != last_added_selection);
7595 state.stack.pop();
7596 }
7597
7598 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7599 s.select(new_selections);
7600 });
7601 if state.stack.len() > 1 {
7602 self.add_selections_state = Some(state);
7603 }
7604 }
7605
7606 pub fn select_next_match_internal(
7607 &mut self,
7608 display_map: &DisplaySnapshot,
7609 replace_newest: bool,
7610 autoscroll: Option<Autoscroll>,
7611 cx: &mut ViewContext<Self>,
7612 ) -> Result<()> {
7613 fn select_next_match_ranges(
7614 this: &mut Editor,
7615 range: Range<usize>,
7616 replace_newest: bool,
7617 auto_scroll: Option<Autoscroll>,
7618 cx: &mut ViewContext<Editor>,
7619 ) {
7620 this.unfold_ranges([range.clone()], false, true, cx);
7621 this.change_selections(auto_scroll, cx, |s| {
7622 if replace_newest {
7623 s.delete(s.newest_anchor().id);
7624 }
7625 s.insert_range(range.clone());
7626 });
7627 }
7628
7629 let buffer = &display_map.buffer_snapshot;
7630 let mut selections = self.selections.all::<usize>(cx);
7631 if let Some(mut select_next_state) = self.select_next_state.take() {
7632 let query = &select_next_state.query;
7633 if !select_next_state.done {
7634 let first_selection = selections.iter().min_by_key(|s| s.id).unwrap();
7635 let last_selection = selections.iter().max_by_key(|s| s.id).unwrap();
7636 let mut next_selected_range = None;
7637
7638 let bytes_after_last_selection =
7639 buffer.bytes_in_range(last_selection.end..buffer.len());
7640 let bytes_before_first_selection = buffer.bytes_in_range(0..first_selection.start);
7641 let query_matches = query
7642 .stream_find_iter(bytes_after_last_selection)
7643 .map(|result| (last_selection.end, result))
7644 .chain(
7645 query
7646 .stream_find_iter(bytes_before_first_selection)
7647 .map(|result| (0, result)),
7648 );
7649
7650 for (start_offset, query_match) in query_matches {
7651 let query_match = query_match.unwrap(); // can only fail due to I/O
7652 let offset_range =
7653 start_offset + query_match.start()..start_offset + query_match.end();
7654 let display_range = offset_range.start.to_display_point(&display_map)
7655 ..offset_range.end.to_display_point(&display_map);
7656
7657 if !select_next_state.wordwise
7658 || (!movement::is_inside_word(&display_map, display_range.start)
7659 && !movement::is_inside_word(&display_map, display_range.end))
7660 {
7661 // TODO: This is n^2, because we might check all the selections
7662 if !selections
7663 .iter()
7664 .any(|selection| selection.range().overlaps(&offset_range))
7665 {
7666 next_selected_range = Some(offset_range);
7667 break;
7668 }
7669 }
7670 }
7671
7672 if let Some(next_selected_range) = next_selected_range {
7673 select_next_match_ranges(
7674 self,
7675 next_selected_range,
7676 replace_newest,
7677 autoscroll,
7678 cx,
7679 );
7680 } else {
7681 select_next_state.done = true;
7682 }
7683 }
7684
7685 self.select_next_state = Some(select_next_state);
7686 } else {
7687 let mut only_carets = true;
7688 let mut same_text_selected = true;
7689 let mut selected_text = None;
7690
7691 let mut selections_iter = selections.iter().peekable();
7692 while let Some(selection) = selections_iter.next() {
7693 if selection.start != selection.end {
7694 only_carets = false;
7695 }
7696
7697 if same_text_selected {
7698 if selected_text.is_none() {
7699 selected_text =
7700 Some(buffer.text_for_range(selection.range()).collect::<String>());
7701 }
7702
7703 if let Some(next_selection) = selections_iter.peek() {
7704 if next_selection.range().len() == selection.range().len() {
7705 let next_selected_text = buffer
7706 .text_for_range(next_selection.range())
7707 .collect::<String>();
7708 if Some(next_selected_text) != selected_text {
7709 same_text_selected = false;
7710 selected_text = None;
7711 }
7712 } else {
7713 same_text_selected = false;
7714 selected_text = None;
7715 }
7716 }
7717 }
7718 }
7719
7720 if only_carets {
7721 for selection in &mut selections {
7722 let word_range = movement::surrounding_word(
7723 &display_map,
7724 selection.start.to_display_point(&display_map),
7725 );
7726 selection.start = word_range.start.to_offset(&display_map, Bias::Left);
7727 selection.end = word_range.end.to_offset(&display_map, Bias::Left);
7728 selection.goal = SelectionGoal::None;
7729 selection.reversed = false;
7730 select_next_match_ranges(
7731 self,
7732 selection.start..selection.end,
7733 replace_newest,
7734 autoscroll,
7735 cx,
7736 );
7737 }
7738
7739 if selections.len() == 1 {
7740 let selection = selections
7741 .last()
7742 .expect("ensured that there's only one selection");
7743 let query = buffer
7744 .text_for_range(selection.start..selection.end)
7745 .collect::<String>();
7746 let is_empty = query.is_empty();
7747 let select_state = SelectNextState {
7748 query: AhoCorasick::new(&[query])?,
7749 wordwise: true,
7750 done: is_empty,
7751 };
7752 self.select_next_state = Some(select_state);
7753 } else {
7754 self.select_next_state = None;
7755 }
7756 } else if let Some(selected_text) = selected_text {
7757 self.select_next_state = Some(SelectNextState {
7758 query: AhoCorasick::new(&[selected_text])?,
7759 wordwise: false,
7760 done: false,
7761 });
7762 self.select_next_match_internal(display_map, replace_newest, autoscroll, cx)?;
7763 }
7764 }
7765 Ok(())
7766 }
7767
7768 pub fn select_all_matches(
7769 &mut self,
7770 _action: &SelectAllMatches,
7771 cx: &mut ViewContext<Self>,
7772 ) -> Result<()> {
7773 self.push_to_selection_history();
7774 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
7775
7776 self.select_next_match_internal(&display_map, false, None, cx)?;
7777 let Some(select_next_state) = self.select_next_state.as_mut() else {
7778 return Ok(());
7779 };
7780 if select_next_state.done {
7781 return Ok(());
7782 }
7783
7784 let mut new_selections = self.selections.all::<usize>(cx);
7785
7786 let buffer = &display_map.buffer_snapshot;
7787 let query_matches = select_next_state
7788 .query
7789 .stream_find_iter(buffer.bytes_in_range(0..buffer.len()));
7790
7791 for query_match in query_matches {
7792 let query_match = query_match.unwrap(); // can only fail due to I/O
7793 let offset_range = query_match.start()..query_match.end();
7794 let display_range = offset_range.start.to_display_point(&display_map)
7795 ..offset_range.end.to_display_point(&display_map);
7796
7797 if !select_next_state.wordwise
7798 || (!movement::is_inside_word(&display_map, display_range.start)
7799 && !movement::is_inside_word(&display_map, display_range.end))
7800 {
7801 self.selections.change_with(cx, |selections| {
7802 new_selections.push(Selection {
7803 id: selections.new_selection_id(),
7804 start: offset_range.start,
7805 end: offset_range.end,
7806 reversed: false,
7807 goal: SelectionGoal::None,
7808 });
7809 });
7810 }
7811 }
7812
7813 new_selections.sort_by_key(|selection| selection.start);
7814 let mut ix = 0;
7815 while ix + 1 < new_selections.len() {
7816 let current_selection = &new_selections[ix];
7817 let next_selection = &new_selections[ix + 1];
7818 if current_selection.range().overlaps(&next_selection.range()) {
7819 if current_selection.id < next_selection.id {
7820 new_selections.remove(ix + 1);
7821 } else {
7822 new_selections.remove(ix);
7823 }
7824 } else {
7825 ix += 1;
7826 }
7827 }
7828
7829 select_next_state.done = true;
7830 self.unfold_ranges(
7831 new_selections.iter().map(|selection| selection.range()),
7832 false,
7833 false,
7834 cx,
7835 );
7836 self.change_selections(Some(Autoscroll::fit()), cx, |selections| {
7837 selections.select(new_selections)
7838 });
7839
7840 Ok(())
7841 }
7842
7843 pub fn select_next(&mut self, action: &SelectNext, cx: &mut ViewContext<Self>) -> Result<()> {
7844 self.push_to_selection_history();
7845 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
7846 self.select_next_match_internal(
7847 &display_map,
7848 action.replace_newest,
7849 Some(Autoscroll::newest()),
7850 cx,
7851 )?;
7852 Ok(())
7853 }
7854
7855 pub fn select_previous(
7856 &mut self,
7857 action: &SelectPrevious,
7858 cx: &mut ViewContext<Self>,
7859 ) -> Result<()> {
7860 self.push_to_selection_history();
7861 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
7862 let buffer = &display_map.buffer_snapshot;
7863 let mut selections = self.selections.all::<usize>(cx);
7864 if let Some(mut select_prev_state) = self.select_prev_state.take() {
7865 let query = &select_prev_state.query;
7866 if !select_prev_state.done {
7867 let first_selection = selections.iter().min_by_key(|s| s.id).unwrap();
7868 let last_selection = selections.iter().max_by_key(|s| s.id).unwrap();
7869 let mut next_selected_range = None;
7870 // When we're iterating matches backwards, the oldest match will actually be the furthest one in the buffer.
7871 let bytes_before_last_selection =
7872 buffer.reversed_bytes_in_range(0..last_selection.start);
7873 let bytes_after_first_selection =
7874 buffer.reversed_bytes_in_range(first_selection.end..buffer.len());
7875 let query_matches = query
7876 .stream_find_iter(bytes_before_last_selection)
7877 .map(|result| (last_selection.start, result))
7878 .chain(
7879 query
7880 .stream_find_iter(bytes_after_first_selection)
7881 .map(|result| (buffer.len(), result)),
7882 );
7883 for (end_offset, query_match) in query_matches {
7884 let query_match = query_match.unwrap(); // can only fail due to I/O
7885 let offset_range =
7886 end_offset - query_match.end()..end_offset - query_match.start();
7887 let display_range = offset_range.start.to_display_point(&display_map)
7888 ..offset_range.end.to_display_point(&display_map);
7889
7890 if !select_prev_state.wordwise
7891 || (!movement::is_inside_word(&display_map, display_range.start)
7892 && !movement::is_inside_word(&display_map, display_range.end))
7893 {
7894 next_selected_range = Some(offset_range);
7895 break;
7896 }
7897 }
7898
7899 if let Some(next_selected_range) = next_selected_range {
7900 self.unfold_ranges([next_selected_range.clone()], false, true, cx);
7901 self.change_selections(Some(Autoscroll::newest()), cx, |s| {
7902 if action.replace_newest {
7903 s.delete(s.newest_anchor().id);
7904 }
7905 s.insert_range(next_selected_range);
7906 });
7907 } else {
7908 select_prev_state.done = true;
7909 }
7910 }
7911
7912 self.select_prev_state = Some(select_prev_state);
7913 } else {
7914 let mut only_carets = true;
7915 let mut same_text_selected = true;
7916 let mut selected_text = None;
7917
7918 let mut selections_iter = selections.iter().peekable();
7919 while let Some(selection) = selections_iter.next() {
7920 if selection.start != selection.end {
7921 only_carets = false;
7922 }
7923
7924 if same_text_selected {
7925 if selected_text.is_none() {
7926 selected_text =
7927 Some(buffer.text_for_range(selection.range()).collect::<String>());
7928 }
7929
7930 if let Some(next_selection) = selections_iter.peek() {
7931 if next_selection.range().len() == selection.range().len() {
7932 let next_selected_text = buffer
7933 .text_for_range(next_selection.range())
7934 .collect::<String>();
7935 if Some(next_selected_text) != selected_text {
7936 same_text_selected = false;
7937 selected_text = None;
7938 }
7939 } else {
7940 same_text_selected = false;
7941 selected_text = None;
7942 }
7943 }
7944 }
7945 }
7946
7947 if only_carets {
7948 for selection in &mut selections {
7949 let word_range = movement::surrounding_word(
7950 &display_map,
7951 selection.start.to_display_point(&display_map),
7952 );
7953 selection.start = word_range.start.to_offset(&display_map, Bias::Left);
7954 selection.end = word_range.end.to_offset(&display_map, Bias::Left);
7955 selection.goal = SelectionGoal::None;
7956 selection.reversed = false;
7957 }
7958 if selections.len() == 1 {
7959 let selection = selections
7960 .last()
7961 .expect("ensured that there's only one selection");
7962 let query = buffer
7963 .text_for_range(selection.start..selection.end)
7964 .collect::<String>();
7965 let is_empty = query.is_empty();
7966 let select_state = SelectNextState {
7967 query: AhoCorasick::new(&[query.chars().rev().collect::<String>()])?,
7968 wordwise: true,
7969 done: is_empty,
7970 };
7971 self.select_prev_state = Some(select_state);
7972 } else {
7973 self.select_prev_state = None;
7974 }
7975
7976 self.unfold_ranges(
7977 selections.iter().map(|s| s.range()).collect::<Vec<_>>(),
7978 false,
7979 true,
7980 cx,
7981 );
7982 self.change_selections(Some(Autoscroll::newest()), cx, |s| {
7983 s.select(selections);
7984 });
7985 } else if let Some(selected_text) = selected_text {
7986 self.select_prev_state = Some(SelectNextState {
7987 query: AhoCorasick::new(&[selected_text.chars().rev().collect::<String>()])?,
7988 wordwise: false,
7989 done: false,
7990 });
7991 self.select_previous(action, cx)?;
7992 }
7993 }
7994 Ok(())
7995 }
7996
7997 pub fn toggle_comments(&mut self, action: &ToggleComments, cx: &mut ViewContext<Self>) {
7998 let text_layout_details = &self.text_layout_details(cx);
7999 self.transact(cx, |this, cx| {
8000 let mut selections = this.selections.all::<MultiBufferPoint>(cx);
8001 let mut edits = Vec::new();
8002 let mut selection_edit_ranges = Vec::new();
8003 let mut last_toggled_row = None;
8004 let snapshot = this.buffer.read(cx).read(cx);
8005 let empty_str: Arc<str> = "".into();
8006 let mut suffixes_inserted = Vec::new();
8007
8008 fn comment_prefix_range(
8009 snapshot: &MultiBufferSnapshot,
8010 row: MultiBufferRow,
8011 comment_prefix: &str,
8012 comment_prefix_whitespace: &str,
8013 ) -> Range<Point> {
8014 let start = Point::new(row.0, snapshot.indent_size_for_line(row).len);
8015
8016 let mut line_bytes = snapshot
8017 .bytes_in_range(start..snapshot.max_point())
8018 .flatten()
8019 .copied();
8020
8021 // If this line currently begins with the line comment prefix, then record
8022 // the range containing the prefix.
8023 if line_bytes
8024 .by_ref()
8025 .take(comment_prefix.len())
8026 .eq(comment_prefix.bytes())
8027 {
8028 // Include any whitespace that matches the comment prefix.
8029 let matching_whitespace_len = line_bytes
8030 .zip(comment_prefix_whitespace.bytes())
8031 .take_while(|(a, b)| a == b)
8032 .count() as u32;
8033 let end = Point::new(
8034 start.row,
8035 start.column + comment_prefix.len() as u32 + matching_whitespace_len,
8036 );
8037 start..end
8038 } else {
8039 start..start
8040 }
8041 }
8042
8043 fn comment_suffix_range(
8044 snapshot: &MultiBufferSnapshot,
8045 row: MultiBufferRow,
8046 comment_suffix: &str,
8047 comment_suffix_has_leading_space: bool,
8048 ) -> Range<Point> {
8049 let end = Point::new(row.0, snapshot.line_len(row));
8050 let suffix_start_column = end.column.saturating_sub(comment_suffix.len() as u32);
8051
8052 let mut line_end_bytes = snapshot
8053 .bytes_in_range(Point::new(end.row, suffix_start_column.saturating_sub(1))..end)
8054 .flatten()
8055 .copied();
8056
8057 let leading_space_len = if suffix_start_column > 0
8058 && line_end_bytes.next() == Some(b' ')
8059 && comment_suffix_has_leading_space
8060 {
8061 1
8062 } else {
8063 0
8064 };
8065
8066 // If this line currently begins with the line comment prefix, then record
8067 // the range containing the prefix.
8068 if line_end_bytes.by_ref().eq(comment_suffix.bytes()) {
8069 let start = Point::new(end.row, suffix_start_column - leading_space_len);
8070 start..end
8071 } else {
8072 end..end
8073 }
8074 }
8075
8076 // TODO: Handle selections that cross excerpts
8077 for selection in &mut selections {
8078 let start_column = snapshot
8079 .indent_size_for_line(MultiBufferRow(selection.start.row))
8080 .len;
8081 let language = if let Some(language) =
8082 snapshot.language_scope_at(Point::new(selection.start.row, start_column))
8083 {
8084 language
8085 } else {
8086 continue;
8087 };
8088
8089 selection_edit_ranges.clear();
8090
8091 // If multiple selections contain a given row, avoid processing that
8092 // row more than once.
8093 let mut start_row = MultiBufferRow(selection.start.row);
8094 if last_toggled_row == Some(start_row) {
8095 start_row = start_row.next_row();
8096 }
8097 let end_row =
8098 if selection.end.row > selection.start.row && selection.end.column == 0 {
8099 MultiBufferRow(selection.end.row - 1)
8100 } else {
8101 MultiBufferRow(selection.end.row)
8102 };
8103 last_toggled_row = Some(end_row);
8104
8105 if start_row > end_row {
8106 continue;
8107 }
8108
8109 // If the language has line comments, toggle those.
8110 let full_comment_prefixes = language.line_comment_prefixes();
8111 if !full_comment_prefixes.is_empty() {
8112 let first_prefix = full_comment_prefixes
8113 .first()
8114 .expect("prefixes is non-empty");
8115 let prefix_trimmed_lengths = full_comment_prefixes
8116 .iter()
8117 .map(|p| p.trim_end_matches(' ').len())
8118 .collect::<SmallVec<[usize; 4]>>();
8119
8120 let mut all_selection_lines_are_comments = true;
8121
8122 for row in start_row.0..=end_row.0 {
8123 let row = MultiBufferRow(row);
8124 if start_row < end_row && snapshot.is_line_blank(row) {
8125 continue;
8126 }
8127
8128 let prefix_range = full_comment_prefixes
8129 .iter()
8130 .zip(prefix_trimmed_lengths.iter().copied())
8131 .map(|(prefix, trimmed_prefix_len)| {
8132 comment_prefix_range(
8133 snapshot.deref(),
8134 row,
8135 &prefix[..trimmed_prefix_len],
8136 &prefix[trimmed_prefix_len..],
8137 )
8138 })
8139 .max_by_key(|range| range.end.column - range.start.column)
8140 .expect("prefixes is non-empty");
8141
8142 if prefix_range.is_empty() {
8143 all_selection_lines_are_comments = false;
8144 }
8145
8146 selection_edit_ranges.push(prefix_range);
8147 }
8148
8149 if all_selection_lines_are_comments {
8150 edits.extend(
8151 selection_edit_ranges
8152 .iter()
8153 .cloned()
8154 .map(|range| (range, empty_str.clone())),
8155 );
8156 } else {
8157 let min_column = selection_edit_ranges
8158 .iter()
8159 .map(|range| range.start.column)
8160 .min()
8161 .unwrap_or(0);
8162 edits.extend(selection_edit_ranges.iter().map(|range| {
8163 let position = Point::new(range.start.row, min_column);
8164 (position..position, first_prefix.clone())
8165 }));
8166 }
8167 } else if let Some((full_comment_prefix, comment_suffix)) =
8168 language.block_comment_delimiters()
8169 {
8170 let comment_prefix = full_comment_prefix.trim_end_matches(' ');
8171 let comment_prefix_whitespace = &full_comment_prefix[comment_prefix.len()..];
8172 let prefix_range = comment_prefix_range(
8173 snapshot.deref(),
8174 start_row,
8175 comment_prefix,
8176 comment_prefix_whitespace,
8177 );
8178 let suffix_range = comment_suffix_range(
8179 snapshot.deref(),
8180 end_row,
8181 comment_suffix.trim_start_matches(' '),
8182 comment_suffix.starts_with(' '),
8183 );
8184
8185 if prefix_range.is_empty() || suffix_range.is_empty() {
8186 edits.push((
8187 prefix_range.start..prefix_range.start,
8188 full_comment_prefix.clone(),
8189 ));
8190 edits.push((suffix_range.end..suffix_range.end, comment_suffix.clone()));
8191 suffixes_inserted.push((end_row, comment_suffix.len()));
8192 } else {
8193 edits.push((prefix_range, empty_str.clone()));
8194 edits.push((suffix_range, empty_str.clone()));
8195 }
8196 } else {
8197 continue;
8198 }
8199 }
8200
8201 drop(snapshot);
8202 this.buffer.update(cx, |buffer, cx| {
8203 buffer.edit(edits, None, cx);
8204 });
8205
8206 // Adjust selections so that they end before any comment suffixes that
8207 // were inserted.
8208 let mut suffixes_inserted = suffixes_inserted.into_iter().peekable();
8209 let mut selections = this.selections.all::<Point>(cx);
8210 let snapshot = this.buffer.read(cx).read(cx);
8211 for selection in &mut selections {
8212 while let Some((row, suffix_len)) = suffixes_inserted.peek().copied() {
8213 match row.cmp(&MultiBufferRow(selection.end.row)) {
8214 Ordering::Less => {
8215 suffixes_inserted.next();
8216 continue;
8217 }
8218 Ordering::Greater => break,
8219 Ordering::Equal => {
8220 if selection.end.column == snapshot.line_len(row) {
8221 if selection.is_empty() {
8222 selection.start.column -= suffix_len as u32;
8223 }
8224 selection.end.column -= suffix_len as u32;
8225 }
8226 break;
8227 }
8228 }
8229 }
8230 }
8231
8232 drop(snapshot);
8233 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
8234
8235 let selections = this.selections.all::<Point>(cx);
8236 let selections_on_single_row = selections.windows(2).all(|selections| {
8237 selections[0].start.row == selections[1].start.row
8238 && selections[0].end.row == selections[1].end.row
8239 && selections[0].start.row == selections[0].end.row
8240 });
8241 let selections_selecting = selections
8242 .iter()
8243 .any(|selection| selection.start != selection.end);
8244 let advance_downwards = action.advance_downwards
8245 && selections_on_single_row
8246 && !selections_selecting
8247 && !matches!(this.mode, EditorMode::SingleLine { .. });
8248
8249 if advance_downwards {
8250 let snapshot = this.buffer.read(cx).snapshot(cx);
8251
8252 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
8253 s.move_cursors_with(|display_snapshot, display_point, _| {
8254 let mut point = display_point.to_point(display_snapshot);
8255 point.row += 1;
8256 point = snapshot.clip_point(point, Bias::Left);
8257 let display_point = point.to_display_point(display_snapshot);
8258 let goal = SelectionGoal::HorizontalPosition(
8259 display_snapshot
8260 .x_for_display_point(display_point, &text_layout_details)
8261 .into(),
8262 );
8263 (display_point, goal)
8264 })
8265 });
8266 }
8267 });
8268 }
8269
8270 pub fn select_enclosing_symbol(
8271 &mut self,
8272 _: &SelectEnclosingSymbol,
8273 cx: &mut ViewContext<Self>,
8274 ) {
8275 let buffer = self.buffer.read(cx).snapshot(cx);
8276 let old_selections = self.selections.all::<usize>(cx).into_boxed_slice();
8277
8278 fn update_selection(
8279 selection: &Selection<usize>,
8280 buffer_snap: &MultiBufferSnapshot,
8281 ) -> Option<Selection<usize>> {
8282 let cursor = selection.head();
8283 let (_buffer_id, symbols) = buffer_snap.symbols_containing(cursor, None)?;
8284 for symbol in symbols.iter().rev() {
8285 let start = symbol.range.start.to_offset(&buffer_snap);
8286 let end = symbol.range.end.to_offset(&buffer_snap);
8287 let new_range = start..end;
8288 if start < selection.start || end > selection.end {
8289 return Some(Selection {
8290 id: selection.id,
8291 start: new_range.start,
8292 end: new_range.end,
8293 goal: SelectionGoal::None,
8294 reversed: selection.reversed,
8295 });
8296 }
8297 }
8298 None
8299 }
8300
8301 let mut selected_larger_symbol = false;
8302 let new_selections = old_selections
8303 .iter()
8304 .map(|selection| match update_selection(selection, &buffer) {
8305 Some(new_selection) => {
8306 if new_selection.range() != selection.range() {
8307 selected_larger_symbol = true;
8308 }
8309 new_selection
8310 }
8311 None => selection.clone(),
8312 })
8313 .collect::<Vec<_>>();
8314
8315 if selected_larger_symbol {
8316 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8317 s.select(new_selections);
8318 });
8319 }
8320 }
8321
8322 pub fn select_larger_syntax_node(
8323 &mut self,
8324 _: &SelectLargerSyntaxNode,
8325 cx: &mut ViewContext<Self>,
8326 ) {
8327 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
8328 let buffer = self.buffer.read(cx).snapshot(cx);
8329 let old_selections = self.selections.all::<usize>(cx).into_boxed_slice();
8330
8331 let mut stack = mem::take(&mut self.select_larger_syntax_node_stack);
8332 let mut selected_larger_node = false;
8333 let new_selections = old_selections
8334 .iter()
8335 .map(|selection| {
8336 let old_range = selection.start..selection.end;
8337 let mut new_range = old_range.clone();
8338 while let Some(containing_range) =
8339 buffer.range_for_syntax_ancestor(new_range.clone())
8340 {
8341 new_range = containing_range;
8342 if !display_map.intersects_fold(new_range.start)
8343 && !display_map.intersects_fold(new_range.end)
8344 {
8345 break;
8346 }
8347 }
8348
8349 selected_larger_node |= new_range != old_range;
8350 Selection {
8351 id: selection.id,
8352 start: new_range.start,
8353 end: new_range.end,
8354 goal: SelectionGoal::None,
8355 reversed: selection.reversed,
8356 }
8357 })
8358 .collect::<Vec<_>>();
8359
8360 if selected_larger_node {
8361 stack.push(old_selections);
8362 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8363 s.select(new_selections);
8364 });
8365 }
8366 self.select_larger_syntax_node_stack = stack;
8367 }
8368
8369 pub fn select_smaller_syntax_node(
8370 &mut self,
8371 _: &SelectSmallerSyntaxNode,
8372 cx: &mut ViewContext<Self>,
8373 ) {
8374 let mut stack = mem::take(&mut self.select_larger_syntax_node_stack);
8375 if let Some(selections) = stack.pop() {
8376 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8377 s.select(selections.to_vec());
8378 });
8379 }
8380 self.select_larger_syntax_node_stack = stack;
8381 }
8382
8383 fn refresh_runnables(&mut self, cx: &mut ViewContext<Self>) -> Task<()> {
8384 if !EditorSettings::get_global(cx).gutter.runnables {
8385 self.clear_tasks();
8386 return Task::ready(());
8387 }
8388 let project = self.project.clone();
8389 cx.spawn(|this, mut cx| async move {
8390 let Ok(display_snapshot) = this.update(&mut cx, |this, cx| {
8391 this.display_map.update(cx, |map, cx| map.snapshot(cx))
8392 }) else {
8393 return;
8394 };
8395
8396 let Some(project) = project else {
8397 return;
8398 };
8399
8400 let hide_runnables = project
8401 .update(&mut cx, |project, cx| {
8402 // Do not display any test indicators in non-dev server remote projects.
8403 project.is_remote() && project.ssh_connection_string(cx).is_none()
8404 })
8405 .unwrap_or(true);
8406 if hide_runnables {
8407 return;
8408 }
8409 let new_rows =
8410 cx.background_executor()
8411 .spawn({
8412 let snapshot = display_snapshot.clone();
8413 async move {
8414 Self::fetch_runnable_ranges(&snapshot, Anchor::min()..Anchor::max())
8415 }
8416 })
8417 .await;
8418 let rows = Self::runnable_rows(project, display_snapshot, new_rows, cx.clone());
8419
8420 this.update(&mut cx, |this, _| {
8421 this.clear_tasks();
8422 for (key, value) in rows {
8423 this.insert_tasks(key, value);
8424 }
8425 })
8426 .ok();
8427 })
8428 }
8429 fn fetch_runnable_ranges(
8430 snapshot: &DisplaySnapshot,
8431 range: Range<Anchor>,
8432 ) -> Vec<language::RunnableRange> {
8433 snapshot.buffer_snapshot.runnable_ranges(range).collect()
8434 }
8435
8436 fn runnable_rows(
8437 project: Model<Project>,
8438 snapshot: DisplaySnapshot,
8439 runnable_ranges: Vec<RunnableRange>,
8440 mut cx: AsyncWindowContext,
8441 ) -> Vec<((BufferId, u32), RunnableTasks)> {
8442 runnable_ranges
8443 .into_iter()
8444 .filter_map(|mut runnable| {
8445 let tasks = cx
8446 .update(|cx| Self::templates_with_tags(&project, &mut runnable.runnable, cx))
8447 .ok()?;
8448 if tasks.is_empty() {
8449 return None;
8450 }
8451
8452 let point = runnable.run_range.start.to_point(&snapshot.buffer_snapshot);
8453
8454 let row = snapshot
8455 .buffer_snapshot
8456 .buffer_line_for_row(MultiBufferRow(point.row))?
8457 .1
8458 .start
8459 .row;
8460
8461 let context_range =
8462 BufferOffset(runnable.full_range.start)..BufferOffset(runnable.full_range.end);
8463 Some((
8464 (runnable.buffer_id, row),
8465 RunnableTasks {
8466 templates: tasks,
8467 offset: MultiBufferOffset(runnable.run_range.start),
8468 context_range,
8469 column: point.column,
8470 extra_variables: runnable.extra_captures,
8471 },
8472 ))
8473 })
8474 .collect()
8475 }
8476
8477 fn templates_with_tags(
8478 project: &Model<Project>,
8479 runnable: &mut Runnable,
8480 cx: &WindowContext<'_>,
8481 ) -> Vec<(TaskSourceKind, TaskTemplate)> {
8482 let (inventory, worktree_id, file) = project.read_with(cx, |project, cx| {
8483 let (worktree_id, file) = project
8484 .buffer_for_id(runnable.buffer)
8485 .and_then(|buffer| buffer.read(cx).file())
8486 .map(|file| (WorktreeId::from_usize(file.worktree_id()), file.clone()))
8487 .unzip();
8488
8489 (project.task_inventory().clone(), worktree_id, file)
8490 });
8491
8492 let inventory = inventory.read(cx);
8493 let tags = mem::take(&mut runnable.tags);
8494 let mut tags: Vec<_> = tags
8495 .into_iter()
8496 .flat_map(|tag| {
8497 let tag = tag.0.clone();
8498 inventory
8499 .list_tasks(
8500 file.clone(),
8501 Some(runnable.language.clone()),
8502 worktree_id,
8503 cx,
8504 )
8505 .into_iter()
8506 .filter(move |(_, template)| {
8507 template.tags.iter().any(|source_tag| source_tag == &tag)
8508 })
8509 })
8510 .sorted_by_key(|(kind, _)| kind.to_owned())
8511 .collect();
8512 if let Some((leading_tag_source, _)) = tags.first() {
8513 // Strongest source wins; if we have worktree tag binding, prefer that to
8514 // global and language bindings;
8515 // if we have a global binding, prefer that to language binding.
8516 let first_mismatch = tags
8517 .iter()
8518 .position(|(tag_source, _)| tag_source != leading_tag_source);
8519 if let Some(index) = first_mismatch {
8520 tags.truncate(index);
8521 }
8522 }
8523
8524 tags
8525 }
8526
8527 pub fn move_to_enclosing_bracket(
8528 &mut self,
8529 _: &MoveToEnclosingBracket,
8530 cx: &mut ViewContext<Self>,
8531 ) {
8532 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8533 s.move_offsets_with(|snapshot, selection| {
8534 let Some(enclosing_bracket_ranges) =
8535 snapshot.enclosing_bracket_ranges(selection.start..selection.end)
8536 else {
8537 return;
8538 };
8539
8540 let mut best_length = usize::MAX;
8541 let mut best_inside = false;
8542 let mut best_in_bracket_range = false;
8543 let mut best_destination = None;
8544 for (open, close) in enclosing_bracket_ranges {
8545 let close = close.to_inclusive();
8546 let length = close.end() - open.start;
8547 let inside = selection.start >= open.end && selection.end <= *close.start();
8548 let in_bracket_range = open.to_inclusive().contains(&selection.head())
8549 || close.contains(&selection.head());
8550
8551 // If best is next to a bracket and current isn't, skip
8552 if !in_bracket_range && best_in_bracket_range {
8553 continue;
8554 }
8555
8556 // Prefer smaller lengths unless best is inside and current isn't
8557 if length > best_length && (best_inside || !inside) {
8558 continue;
8559 }
8560
8561 best_length = length;
8562 best_inside = inside;
8563 best_in_bracket_range = in_bracket_range;
8564 best_destination = Some(
8565 if close.contains(&selection.start) && close.contains(&selection.end) {
8566 if inside {
8567 open.end
8568 } else {
8569 open.start
8570 }
8571 } else {
8572 if inside {
8573 *close.start()
8574 } else {
8575 *close.end()
8576 }
8577 },
8578 );
8579 }
8580
8581 if let Some(destination) = best_destination {
8582 selection.collapse_to(destination, SelectionGoal::None);
8583 }
8584 })
8585 });
8586 }
8587
8588 pub fn undo_selection(&mut self, _: &UndoSelection, cx: &mut ViewContext<Self>) {
8589 self.end_selection(cx);
8590 self.selection_history.mode = SelectionHistoryMode::Undoing;
8591 if let Some(entry) = self.selection_history.undo_stack.pop_back() {
8592 self.change_selections(None, cx, |s| s.select_anchors(entry.selections.to_vec()));
8593 self.select_next_state = entry.select_next_state;
8594 self.select_prev_state = entry.select_prev_state;
8595 self.add_selections_state = entry.add_selections_state;
8596 self.request_autoscroll(Autoscroll::newest(), cx);
8597 }
8598 self.selection_history.mode = SelectionHistoryMode::Normal;
8599 }
8600
8601 pub fn redo_selection(&mut self, _: &RedoSelection, cx: &mut ViewContext<Self>) {
8602 self.end_selection(cx);
8603 self.selection_history.mode = SelectionHistoryMode::Redoing;
8604 if let Some(entry) = self.selection_history.redo_stack.pop_back() {
8605 self.change_selections(None, cx, |s| s.select_anchors(entry.selections.to_vec()));
8606 self.select_next_state = entry.select_next_state;
8607 self.select_prev_state = entry.select_prev_state;
8608 self.add_selections_state = entry.add_selections_state;
8609 self.request_autoscroll(Autoscroll::newest(), cx);
8610 }
8611 self.selection_history.mode = SelectionHistoryMode::Normal;
8612 }
8613
8614 pub fn expand_excerpts(&mut self, action: &ExpandExcerpts, cx: &mut ViewContext<Self>) {
8615 self.expand_excerpts_for_direction(action.lines, ExpandExcerptDirection::UpAndDown, cx)
8616 }
8617
8618 pub fn expand_excerpts_down(
8619 &mut self,
8620 action: &ExpandExcerptsDown,
8621 cx: &mut ViewContext<Self>,
8622 ) {
8623 self.expand_excerpts_for_direction(action.lines, ExpandExcerptDirection::Down, cx)
8624 }
8625
8626 pub fn expand_excerpts_up(&mut self, action: &ExpandExcerptsUp, cx: &mut ViewContext<Self>) {
8627 self.expand_excerpts_for_direction(action.lines, ExpandExcerptDirection::Up, cx)
8628 }
8629
8630 pub fn expand_excerpts_for_direction(
8631 &mut self,
8632 lines: u32,
8633 direction: ExpandExcerptDirection,
8634 cx: &mut ViewContext<Self>,
8635 ) {
8636 let selections = self.selections.disjoint_anchors();
8637
8638 let lines = if lines == 0 {
8639 EditorSettings::get_global(cx).expand_excerpt_lines
8640 } else {
8641 lines
8642 };
8643
8644 self.buffer.update(cx, |buffer, cx| {
8645 buffer.expand_excerpts(
8646 selections
8647 .into_iter()
8648 .map(|selection| selection.head().excerpt_id)
8649 .dedup(),
8650 lines,
8651 direction,
8652 cx,
8653 )
8654 })
8655 }
8656
8657 pub fn expand_excerpt(
8658 &mut self,
8659 excerpt: ExcerptId,
8660 direction: ExpandExcerptDirection,
8661 cx: &mut ViewContext<Self>,
8662 ) {
8663 let lines = EditorSettings::get_global(cx).expand_excerpt_lines;
8664 self.buffer.update(cx, |buffer, cx| {
8665 buffer.expand_excerpts([excerpt], lines, direction, cx)
8666 })
8667 }
8668
8669 fn go_to_diagnostic(&mut self, _: &GoToDiagnostic, cx: &mut ViewContext<Self>) {
8670 self.go_to_diagnostic_impl(Direction::Next, cx)
8671 }
8672
8673 fn go_to_prev_diagnostic(&mut self, _: &GoToPrevDiagnostic, cx: &mut ViewContext<Self>) {
8674 self.go_to_diagnostic_impl(Direction::Prev, cx)
8675 }
8676
8677 pub fn go_to_diagnostic_impl(&mut self, direction: Direction, cx: &mut ViewContext<Self>) {
8678 let buffer = self.buffer.read(cx).snapshot(cx);
8679 let selection = self.selections.newest::<usize>(cx);
8680
8681 // If there is an active Diagnostic Popover jump to its diagnostic instead.
8682 if direction == Direction::Next {
8683 if let Some(popover) = self.hover_state.diagnostic_popover.as_ref() {
8684 let (group_id, jump_to) = popover.activation_info();
8685 if self.activate_diagnostics(group_id, cx) {
8686 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8687 let mut new_selection = s.newest_anchor().clone();
8688 new_selection.collapse_to(jump_to, SelectionGoal::None);
8689 s.select_anchors(vec![new_selection.clone()]);
8690 });
8691 }
8692 return;
8693 }
8694 }
8695
8696 let mut active_primary_range = self.active_diagnostics.as_ref().map(|active_diagnostics| {
8697 active_diagnostics
8698 .primary_range
8699 .to_offset(&buffer)
8700 .to_inclusive()
8701 });
8702 let mut search_start = if let Some(active_primary_range) = active_primary_range.as_ref() {
8703 if active_primary_range.contains(&selection.head()) {
8704 *active_primary_range.start()
8705 } else {
8706 selection.head()
8707 }
8708 } else {
8709 selection.head()
8710 };
8711 let snapshot = self.snapshot(cx);
8712 loop {
8713 let diagnostics = if direction == Direction::Prev {
8714 buffer.diagnostics_in_range::<_, usize>(0..search_start, true)
8715 } else {
8716 buffer.diagnostics_in_range::<_, usize>(search_start..buffer.len(), false)
8717 }
8718 .filter(|diagnostic| !snapshot.intersects_fold(diagnostic.range.start));
8719 let group = diagnostics
8720 // relies on diagnostics_in_range to return diagnostics with the same starting range to
8721 // be sorted in a stable way
8722 // skip until we are at current active diagnostic, if it exists
8723 .skip_while(|entry| {
8724 (match direction {
8725 Direction::Prev => entry.range.start >= search_start,
8726 Direction::Next => entry.range.start <= search_start,
8727 }) && self
8728 .active_diagnostics
8729 .as_ref()
8730 .is_some_and(|a| a.group_id != entry.diagnostic.group_id)
8731 })
8732 .find_map(|entry| {
8733 if entry.diagnostic.is_primary
8734 && entry.diagnostic.severity <= DiagnosticSeverity::WARNING
8735 && !entry.range.is_empty()
8736 // if we match with the active diagnostic, skip it
8737 && Some(entry.diagnostic.group_id)
8738 != self.active_diagnostics.as_ref().map(|d| d.group_id)
8739 {
8740 Some((entry.range, entry.diagnostic.group_id))
8741 } else {
8742 None
8743 }
8744 });
8745
8746 if let Some((primary_range, group_id)) = group {
8747 if self.activate_diagnostics(group_id, cx) {
8748 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8749 s.select(vec![Selection {
8750 id: selection.id,
8751 start: primary_range.start,
8752 end: primary_range.start,
8753 reversed: false,
8754 goal: SelectionGoal::None,
8755 }]);
8756 });
8757 }
8758 break;
8759 } else {
8760 // Cycle around to the start of the buffer, potentially moving back to the start of
8761 // the currently active diagnostic.
8762 active_primary_range.take();
8763 if direction == Direction::Prev {
8764 if search_start == buffer.len() {
8765 break;
8766 } else {
8767 search_start = buffer.len();
8768 }
8769 } else if search_start == 0 {
8770 break;
8771 } else {
8772 search_start = 0;
8773 }
8774 }
8775 }
8776 }
8777
8778 fn go_to_hunk(&mut self, _: &GoToHunk, cx: &mut ViewContext<Self>) {
8779 let snapshot = self
8780 .display_map
8781 .update(cx, |display_map, cx| display_map.snapshot(cx));
8782 let selection = self.selections.newest::<Point>(cx);
8783
8784 if !self.seek_in_direction(
8785 &snapshot,
8786 selection.head(),
8787 false,
8788 snapshot.buffer_snapshot.git_diff_hunks_in_range(
8789 MultiBufferRow(selection.head().row + 1)..MultiBufferRow::MAX,
8790 ),
8791 cx,
8792 ) {
8793 let wrapped_point = Point::zero();
8794 self.seek_in_direction(
8795 &snapshot,
8796 wrapped_point,
8797 true,
8798 snapshot.buffer_snapshot.git_diff_hunks_in_range(
8799 MultiBufferRow(wrapped_point.row + 1)..MultiBufferRow::MAX,
8800 ),
8801 cx,
8802 );
8803 }
8804 }
8805
8806 fn go_to_prev_hunk(&mut self, _: &GoToPrevHunk, cx: &mut ViewContext<Self>) {
8807 let snapshot = self
8808 .display_map
8809 .update(cx, |display_map, cx| display_map.snapshot(cx));
8810 let selection = self.selections.newest::<Point>(cx);
8811
8812 if !self.seek_in_direction(
8813 &snapshot,
8814 selection.head(),
8815 false,
8816 snapshot.buffer_snapshot.git_diff_hunks_in_range_rev(
8817 MultiBufferRow(0)..MultiBufferRow(selection.head().row),
8818 ),
8819 cx,
8820 ) {
8821 let wrapped_point = snapshot.buffer_snapshot.max_point();
8822 self.seek_in_direction(
8823 &snapshot,
8824 wrapped_point,
8825 true,
8826 snapshot.buffer_snapshot.git_diff_hunks_in_range_rev(
8827 MultiBufferRow(0)..MultiBufferRow(wrapped_point.row),
8828 ),
8829 cx,
8830 );
8831 }
8832 }
8833
8834 fn seek_in_direction(
8835 &mut self,
8836 snapshot: &DisplaySnapshot,
8837 initial_point: Point,
8838 is_wrapped: bool,
8839 hunks: impl Iterator<Item = DiffHunk<MultiBufferRow>>,
8840 cx: &mut ViewContext<Editor>,
8841 ) -> bool {
8842 let display_point = initial_point.to_display_point(snapshot);
8843 let mut hunks = hunks
8844 .map(|hunk| diff_hunk_to_display(&hunk, &snapshot))
8845 .filter(|hunk| is_wrapped || !hunk.contains_display_row(display_point.row()))
8846 .dedup();
8847
8848 if let Some(hunk) = hunks.next() {
8849 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8850 let row = hunk.start_display_row();
8851 let point = DisplayPoint::new(row, 0);
8852 s.select_display_ranges([point..point]);
8853 });
8854
8855 true
8856 } else {
8857 false
8858 }
8859 }
8860
8861 pub fn go_to_definition(
8862 &mut self,
8863 _: &GoToDefinition,
8864 cx: &mut ViewContext<Self>,
8865 ) -> Task<Result<bool>> {
8866 self.go_to_definition_of_kind(GotoDefinitionKind::Symbol, false, cx)
8867 }
8868
8869 pub fn go_to_implementation(
8870 &mut self,
8871 _: &GoToImplementation,
8872 cx: &mut ViewContext<Self>,
8873 ) -> Task<Result<bool>> {
8874 self.go_to_definition_of_kind(GotoDefinitionKind::Implementation, false, cx)
8875 }
8876
8877 pub fn go_to_implementation_split(
8878 &mut self,
8879 _: &GoToImplementationSplit,
8880 cx: &mut ViewContext<Self>,
8881 ) -> Task<Result<bool>> {
8882 self.go_to_definition_of_kind(GotoDefinitionKind::Implementation, true, cx)
8883 }
8884
8885 pub fn go_to_type_definition(
8886 &mut self,
8887 _: &GoToTypeDefinition,
8888 cx: &mut ViewContext<Self>,
8889 ) -> Task<Result<bool>> {
8890 self.go_to_definition_of_kind(GotoDefinitionKind::Type, false, cx)
8891 }
8892
8893 pub fn go_to_definition_split(
8894 &mut self,
8895 _: &GoToDefinitionSplit,
8896 cx: &mut ViewContext<Self>,
8897 ) -> Task<Result<bool>> {
8898 self.go_to_definition_of_kind(GotoDefinitionKind::Symbol, true, cx)
8899 }
8900
8901 pub fn go_to_type_definition_split(
8902 &mut self,
8903 _: &GoToTypeDefinitionSplit,
8904 cx: &mut ViewContext<Self>,
8905 ) -> Task<Result<bool>> {
8906 self.go_to_definition_of_kind(GotoDefinitionKind::Type, true, cx)
8907 }
8908
8909 fn go_to_definition_of_kind(
8910 &mut self,
8911 kind: GotoDefinitionKind,
8912 split: bool,
8913 cx: &mut ViewContext<Self>,
8914 ) -> Task<Result<bool>> {
8915 let Some(workspace) = self.workspace() else {
8916 return Task::ready(Ok(false));
8917 };
8918 let buffer = self.buffer.read(cx);
8919 let head = self.selections.newest::<usize>(cx).head();
8920 let (buffer, head) = if let Some(text_anchor) = buffer.text_anchor_for_position(head, cx) {
8921 text_anchor
8922 } else {
8923 return Task::ready(Ok(false));
8924 };
8925
8926 let project = workspace.read(cx).project().clone();
8927 let definitions = project.update(cx, |project, cx| match kind {
8928 GotoDefinitionKind::Symbol => project.definition(&buffer, head, cx),
8929 GotoDefinitionKind::Type => project.type_definition(&buffer, head, cx),
8930 GotoDefinitionKind::Implementation => project.implementation(&buffer, head, cx),
8931 });
8932
8933 cx.spawn(|editor, mut cx| async move {
8934 let definitions = definitions.await?;
8935 let navigated = editor
8936 .update(&mut cx, |editor, cx| {
8937 editor.navigate_to_hover_links(
8938 Some(kind),
8939 definitions
8940 .into_iter()
8941 .filter(|location| {
8942 hover_links::exclude_link_to_position(&buffer, &head, location, cx)
8943 })
8944 .map(HoverLink::Text)
8945 .collect::<Vec<_>>(),
8946 split,
8947 cx,
8948 )
8949 })?
8950 .await?;
8951 anyhow::Ok(navigated)
8952 })
8953 }
8954
8955 pub fn open_url(&mut self, _: &OpenUrl, cx: &mut ViewContext<Self>) {
8956 let position = self.selections.newest_anchor().head();
8957 let Some((buffer, buffer_position)) =
8958 self.buffer.read(cx).text_anchor_for_position(position, cx)
8959 else {
8960 return;
8961 };
8962
8963 cx.spawn(|editor, mut cx| async move {
8964 if let Some((_, url)) = find_url(&buffer, buffer_position, cx.clone()) {
8965 editor.update(&mut cx, |_, cx| {
8966 cx.open_url(&url);
8967 })
8968 } else {
8969 Ok(())
8970 }
8971 })
8972 .detach();
8973 }
8974
8975 pub(crate) fn navigate_to_hover_links(
8976 &mut self,
8977 kind: Option<GotoDefinitionKind>,
8978 mut definitions: Vec<HoverLink>,
8979 split: bool,
8980 cx: &mut ViewContext<Editor>,
8981 ) -> Task<Result<bool>> {
8982 // If there is one definition, just open it directly
8983 if definitions.len() == 1 {
8984 let definition = definitions.pop().unwrap();
8985 let target_task = match definition {
8986 HoverLink::Text(link) => Task::Ready(Some(Ok(Some(link.target)))),
8987 HoverLink::InlayHint(lsp_location, server_id) => {
8988 self.compute_target_location(lsp_location, server_id, cx)
8989 }
8990 HoverLink::Url(url) => {
8991 cx.open_url(&url);
8992 Task::ready(Ok(None))
8993 }
8994 };
8995 cx.spawn(|editor, mut cx| async move {
8996 let target = target_task.await.context("target resolution task")?;
8997 if let Some(target) = target {
8998 editor.update(&mut cx, |editor, cx| {
8999 let Some(workspace) = editor.workspace() else {
9000 return false;
9001 };
9002 let pane = workspace.read(cx).active_pane().clone();
9003
9004 let range = target.range.to_offset(target.buffer.read(cx));
9005 let range = editor.range_for_match(&range);
9006
9007 /// If select range has more than one line, we
9008 /// just point the cursor to range.start.
9009 fn check_multiline_range(
9010 buffer: &Buffer,
9011 range: Range<usize>,
9012 ) -> Range<usize> {
9013 if buffer.offset_to_point(range.start).row
9014 == buffer.offset_to_point(range.end).row
9015 {
9016 range
9017 } else {
9018 range.start..range.start
9019 }
9020 }
9021
9022 if Some(&target.buffer) == editor.buffer.read(cx).as_singleton().as_ref() {
9023 let buffer = target.buffer.read(cx);
9024 let range = check_multiline_range(buffer, range);
9025 editor.change_selections(Some(Autoscroll::focused()), cx, |s| {
9026 s.select_ranges([range]);
9027 });
9028 } else {
9029 cx.window_context().defer(move |cx| {
9030 let target_editor: View<Self> =
9031 workspace.update(cx, |workspace, cx| {
9032 let pane = if split {
9033 workspace.adjacent_pane(cx)
9034 } else {
9035 workspace.active_pane().clone()
9036 };
9037
9038 workspace.open_project_item(pane, target.buffer.clone(), cx)
9039 });
9040 target_editor.update(cx, |target_editor, cx| {
9041 // When selecting a definition in a different buffer, disable the nav history
9042 // to avoid creating a history entry at the previous cursor location.
9043 pane.update(cx, |pane, _| pane.disable_history());
9044 let buffer = target.buffer.read(cx);
9045 let range = check_multiline_range(buffer, range);
9046 target_editor.change_selections(
9047 Some(Autoscroll::focused()),
9048 cx,
9049 |s| {
9050 s.select_ranges([range]);
9051 },
9052 );
9053 pane.update(cx, |pane, _| pane.enable_history());
9054 });
9055 });
9056 }
9057 true
9058 })
9059 } else {
9060 Ok(false)
9061 }
9062 })
9063 } else if !definitions.is_empty() {
9064 let replica_id = self.replica_id(cx);
9065 cx.spawn(|editor, mut cx| async move {
9066 let (title, location_tasks, workspace) = editor
9067 .update(&mut cx, |editor, cx| {
9068 let tab_kind = match kind {
9069 Some(GotoDefinitionKind::Implementation) => "Implementations",
9070 _ => "Definitions",
9071 };
9072 let title = definitions
9073 .iter()
9074 .find_map(|definition| match definition {
9075 HoverLink::Text(link) => link.origin.as_ref().map(|origin| {
9076 let buffer = origin.buffer.read(cx);
9077 format!(
9078 "{} for {}",
9079 tab_kind,
9080 buffer
9081 .text_for_range(origin.range.clone())
9082 .collect::<String>()
9083 )
9084 }),
9085 HoverLink::InlayHint(_, _) => None,
9086 HoverLink::Url(_) => None,
9087 })
9088 .unwrap_or(tab_kind.to_string());
9089 let location_tasks = definitions
9090 .into_iter()
9091 .map(|definition| match definition {
9092 HoverLink::Text(link) => Task::Ready(Some(Ok(Some(link.target)))),
9093 HoverLink::InlayHint(lsp_location, server_id) => {
9094 editor.compute_target_location(lsp_location, server_id, cx)
9095 }
9096 HoverLink::Url(_) => Task::ready(Ok(None)),
9097 })
9098 .collect::<Vec<_>>();
9099 (title, location_tasks, editor.workspace().clone())
9100 })
9101 .context("location tasks preparation")?;
9102
9103 let locations = futures::future::join_all(location_tasks)
9104 .await
9105 .into_iter()
9106 .filter_map(|location| location.transpose())
9107 .collect::<Result<_>>()
9108 .context("location tasks")?;
9109
9110 let Some(workspace) = workspace else {
9111 return Ok(false);
9112 };
9113 let opened = workspace
9114 .update(&mut cx, |workspace, cx| {
9115 Self::open_locations_in_multibuffer(
9116 workspace, locations, replica_id, title, split, cx,
9117 )
9118 })
9119 .ok();
9120
9121 anyhow::Ok(opened.is_some())
9122 })
9123 } else {
9124 Task::ready(Ok(false))
9125 }
9126 }
9127
9128 fn compute_target_location(
9129 &self,
9130 lsp_location: lsp::Location,
9131 server_id: LanguageServerId,
9132 cx: &mut ViewContext<Editor>,
9133 ) -> Task<anyhow::Result<Option<Location>>> {
9134 let Some(project) = self.project.clone() else {
9135 return Task::Ready(Some(Ok(None)));
9136 };
9137
9138 cx.spawn(move |editor, mut cx| async move {
9139 let location_task = editor.update(&mut cx, |editor, cx| {
9140 project.update(cx, |project, cx| {
9141 let language_server_name =
9142 editor.buffer.read(cx).as_singleton().and_then(|buffer| {
9143 project
9144 .language_server_for_buffer(buffer.read(cx), server_id, cx)
9145 .map(|(lsp_adapter, _)| lsp_adapter.name.clone())
9146 });
9147 language_server_name.map(|language_server_name| {
9148 project.open_local_buffer_via_lsp(
9149 lsp_location.uri.clone(),
9150 server_id,
9151 language_server_name,
9152 cx,
9153 )
9154 })
9155 })
9156 })?;
9157 let location = match location_task {
9158 Some(task) => Some({
9159 let target_buffer_handle = task.await.context("open local buffer")?;
9160 let range = target_buffer_handle.update(&mut cx, |target_buffer, _| {
9161 let target_start = target_buffer
9162 .clip_point_utf16(point_from_lsp(lsp_location.range.start), Bias::Left);
9163 let target_end = target_buffer
9164 .clip_point_utf16(point_from_lsp(lsp_location.range.end), Bias::Left);
9165 target_buffer.anchor_after(target_start)
9166 ..target_buffer.anchor_before(target_end)
9167 })?;
9168 Location {
9169 buffer: target_buffer_handle,
9170 range,
9171 }
9172 }),
9173 None => None,
9174 };
9175 Ok(location)
9176 })
9177 }
9178
9179 pub fn find_all_references(
9180 &mut self,
9181 _: &FindAllReferences,
9182 cx: &mut ViewContext<Self>,
9183 ) -> Option<Task<Result<()>>> {
9184 let multi_buffer = self.buffer.read(cx);
9185 let selection = self.selections.newest::<usize>(cx);
9186 let head = selection.head();
9187
9188 let multi_buffer_snapshot = multi_buffer.snapshot(cx);
9189 let head_anchor = multi_buffer_snapshot.anchor_at(
9190 head,
9191 if head < selection.tail() {
9192 Bias::Right
9193 } else {
9194 Bias::Left
9195 },
9196 );
9197
9198 match self
9199 .find_all_references_task_sources
9200 .binary_search_by(|anchor| anchor.cmp(&head_anchor, &multi_buffer_snapshot))
9201 {
9202 Ok(_) => {
9203 log::info!(
9204 "Ignoring repeated FindAllReferences invocation with the position of already running task"
9205 );
9206 return None;
9207 }
9208 Err(i) => {
9209 self.find_all_references_task_sources.insert(i, head_anchor);
9210 }
9211 }
9212
9213 let (buffer, head) = multi_buffer.text_anchor_for_position(head, cx)?;
9214 let replica_id = self.replica_id(cx);
9215 let workspace = self.workspace()?;
9216 let project = workspace.read(cx).project().clone();
9217 let references = project.update(cx, |project, cx| project.references(&buffer, head, cx));
9218 Some(cx.spawn(|editor, mut cx| async move {
9219 let _cleanup = defer({
9220 let mut cx = cx.clone();
9221 move || {
9222 let _ = editor.update(&mut cx, |editor, _| {
9223 if let Ok(i) =
9224 editor
9225 .find_all_references_task_sources
9226 .binary_search_by(|anchor| {
9227 anchor.cmp(&head_anchor, &multi_buffer_snapshot)
9228 })
9229 {
9230 editor.find_all_references_task_sources.remove(i);
9231 }
9232 });
9233 }
9234 });
9235
9236 let locations = references.await?;
9237 if locations.is_empty() {
9238 return anyhow::Ok(());
9239 }
9240
9241 workspace.update(&mut cx, |workspace, cx| {
9242 let title = locations
9243 .first()
9244 .as_ref()
9245 .map(|location| {
9246 let buffer = location.buffer.read(cx);
9247 format!(
9248 "References to `{}`",
9249 buffer
9250 .text_for_range(location.range.clone())
9251 .collect::<String>()
9252 )
9253 })
9254 .unwrap();
9255 Self::open_locations_in_multibuffer(
9256 workspace, locations, replica_id, title, false, cx,
9257 );
9258 })
9259 }))
9260 }
9261
9262 /// Opens a multibuffer with the given project locations in it
9263 pub fn open_locations_in_multibuffer(
9264 workspace: &mut Workspace,
9265 mut locations: Vec<Location>,
9266 replica_id: ReplicaId,
9267 title: String,
9268 split: bool,
9269 cx: &mut ViewContext<Workspace>,
9270 ) {
9271 // If there are multiple definitions, open them in a multibuffer
9272 locations.sort_by_key(|location| location.buffer.read(cx).remote_id());
9273 let mut locations = locations.into_iter().peekable();
9274 let mut ranges_to_highlight = Vec::new();
9275 let capability = workspace.project().read(cx).capability();
9276
9277 let excerpt_buffer = cx.new_model(|cx| {
9278 let mut multibuffer = MultiBuffer::new(replica_id, capability);
9279 while let Some(location) = locations.next() {
9280 let buffer = location.buffer.read(cx);
9281 let mut ranges_for_buffer = Vec::new();
9282 let range = location.range.to_offset(buffer);
9283 ranges_for_buffer.push(range.clone());
9284
9285 while let Some(next_location) = locations.peek() {
9286 if next_location.buffer == location.buffer {
9287 ranges_for_buffer.push(next_location.range.to_offset(buffer));
9288 locations.next();
9289 } else {
9290 break;
9291 }
9292 }
9293
9294 ranges_for_buffer.sort_by_key(|range| (range.start, Reverse(range.end)));
9295 ranges_to_highlight.extend(multibuffer.push_excerpts_with_context_lines(
9296 location.buffer.clone(),
9297 ranges_for_buffer,
9298 DEFAULT_MULTIBUFFER_CONTEXT,
9299 cx,
9300 ))
9301 }
9302
9303 multibuffer.with_title(title)
9304 });
9305
9306 let editor = cx.new_view(|cx| {
9307 Editor::for_multibuffer(excerpt_buffer, Some(workspace.project().clone()), true, cx)
9308 });
9309 editor.update(cx, |editor, cx| {
9310 if let Some(first_range) = ranges_to_highlight.first() {
9311 editor.change_selections(None, cx, |selections| {
9312 selections.clear_disjoint();
9313 selections.select_anchor_ranges(std::iter::once(first_range.clone()));
9314 });
9315 }
9316 editor.highlight_background::<Self>(
9317 &ranges_to_highlight,
9318 |theme| theme.editor_highlighted_line_background,
9319 cx,
9320 );
9321 });
9322
9323 let item = Box::new(editor);
9324 let item_id = item.item_id();
9325
9326 if split {
9327 workspace.split_item(SplitDirection::Right, item.clone(), cx);
9328 } else {
9329 let destination_index = workspace.active_pane().update(cx, |pane, cx| {
9330 if PreviewTabsSettings::get_global(cx).enable_preview_from_code_navigation {
9331 pane.close_current_preview_item(cx)
9332 } else {
9333 None
9334 }
9335 });
9336 workspace.add_item_to_active_pane(item.clone(), destination_index, cx);
9337 }
9338 workspace.active_pane().update(cx, |pane, cx| {
9339 pane.set_preview_item_id(Some(item_id), cx);
9340 });
9341 }
9342
9343 pub fn rename(&mut self, _: &Rename, cx: &mut ViewContext<Self>) -> Option<Task<Result<()>>> {
9344 use language::ToOffset as _;
9345
9346 let project = self.project.clone()?;
9347 let selection = self.selections.newest_anchor().clone();
9348 let (cursor_buffer, cursor_buffer_position) = self
9349 .buffer
9350 .read(cx)
9351 .text_anchor_for_position(selection.head(), cx)?;
9352 let (tail_buffer, cursor_buffer_position_end) = self
9353 .buffer
9354 .read(cx)
9355 .text_anchor_for_position(selection.tail(), cx)?;
9356 if tail_buffer != cursor_buffer {
9357 return None;
9358 }
9359
9360 let snapshot = cursor_buffer.read(cx).snapshot();
9361 let cursor_buffer_offset = cursor_buffer_position.to_offset(&snapshot);
9362 let cursor_buffer_offset_end = cursor_buffer_position_end.to_offset(&snapshot);
9363 let prepare_rename = project.update(cx, |project, cx| {
9364 project.prepare_rename(cursor_buffer.clone(), cursor_buffer_offset, cx)
9365 });
9366 drop(snapshot);
9367
9368 Some(cx.spawn(|this, mut cx| async move {
9369 let rename_range = if let Some(range) = prepare_rename.await? {
9370 Some(range)
9371 } else {
9372 this.update(&mut cx, |this, cx| {
9373 let buffer = this.buffer.read(cx).snapshot(cx);
9374 let mut buffer_highlights = this
9375 .document_highlights_for_position(selection.head(), &buffer)
9376 .filter(|highlight| {
9377 highlight.start.excerpt_id == selection.head().excerpt_id
9378 && highlight.end.excerpt_id == selection.head().excerpt_id
9379 });
9380 buffer_highlights
9381 .next()
9382 .map(|highlight| highlight.start.text_anchor..highlight.end.text_anchor)
9383 })?
9384 };
9385 if let Some(rename_range) = rename_range {
9386 this.update(&mut cx, |this, cx| {
9387 let snapshot = cursor_buffer.read(cx).snapshot();
9388 let rename_buffer_range = rename_range.to_offset(&snapshot);
9389 let cursor_offset_in_rename_range =
9390 cursor_buffer_offset.saturating_sub(rename_buffer_range.start);
9391 let cursor_offset_in_rename_range_end =
9392 cursor_buffer_offset_end.saturating_sub(rename_buffer_range.start);
9393
9394 this.take_rename(false, cx);
9395 let buffer = this.buffer.read(cx).read(cx);
9396 let cursor_offset = selection.head().to_offset(&buffer);
9397 let rename_start = cursor_offset.saturating_sub(cursor_offset_in_rename_range);
9398 let rename_end = rename_start + rename_buffer_range.len();
9399 let range = buffer.anchor_before(rename_start)..buffer.anchor_after(rename_end);
9400 let mut old_highlight_id = None;
9401 let old_name: Arc<str> = buffer
9402 .chunks(rename_start..rename_end, true)
9403 .map(|chunk| {
9404 if old_highlight_id.is_none() {
9405 old_highlight_id = chunk.syntax_highlight_id;
9406 }
9407 chunk.text
9408 })
9409 .collect::<String>()
9410 .into();
9411
9412 drop(buffer);
9413
9414 // Position the selection in the rename editor so that it matches the current selection.
9415 this.show_local_selections = false;
9416 let rename_editor = cx.new_view(|cx| {
9417 let mut editor = Editor::single_line(cx);
9418 editor.buffer.update(cx, |buffer, cx| {
9419 buffer.edit([(0..0, old_name.clone())], None, cx)
9420 });
9421 let rename_selection_range = match cursor_offset_in_rename_range
9422 .cmp(&cursor_offset_in_rename_range_end)
9423 {
9424 Ordering::Equal => {
9425 editor.select_all(&SelectAll, cx);
9426 return editor;
9427 }
9428 Ordering::Less => {
9429 cursor_offset_in_rename_range..cursor_offset_in_rename_range_end
9430 }
9431 Ordering::Greater => {
9432 cursor_offset_in_rename_range_end..cursor_offset_in_rename_range
9433 }
9434 };
9435 if rename_selection_range.end > old_name.len() {
9436 editor.select_all(&SelectAll, cx);
9437 } else {
9438 editor.change_selections(Some(Autoscroll::fit()), cx, |s| {
9439 s.select_ranges([rename_selection_range]);
9440 });
9441 }
9442 editor
9443 });
9444
9445 let write_highlights =
9446 this.clear_background_highlights::<DocumentHighlightWrite>(cx);
9447 let read_highlights =
9448 this.clear_background_highlights::<DocumentHighlightRead>(cx);
9449 let ranges = write_highlights
9450 .iter()
9451 .flat_map(|(_, ranges)| ranges.iter())
9452 .chain(read_highlights.iter().flat_map(|(_, ranges)| ranges.iter()))
9453 .cloned()
9454 .collect();
9455
9456 this.highlight_text::<Rename>(
9457 ranges,
9458 HighlightStyle {
9459 fade_out: Some(0.6),
9460 ..Default::default()
9461 },
9462 cx,
9463 );
9464 let rename_focus_handle = rename_editor.focus_handle(cx);
9465 cx.focus(&rename_focus_handle);
9466 let block_id = this.insert_blocks(
9467 [BlockProperties {
9468 style: BlockStyle::Flex,
9469 position: range.start,
9470 height: 1,
9471 render: Box::new({
9472 let rename_editor = rename_editor.clone();
9473 move |cx: &mut BlockContext| {
9474 let mut text_style = cx.editor_style.text.clone();
9475 if let Some(highlight_style) = old_highlight_id
9476 .and_then(|h| h.style(&cx.editor_style.syntax))
9477 {
9478 text_style = text_style.highlight(highlight_style);
9479 }
9480 div()
9481 .pl(cx.anchor_x)
9482 .child(EditorElement::new(
9483 &rename_editor,
9484 EditorStyle {
9485 background: cx.theme().system().transparent,
9486 local_player: cx.editor_style.local_player,
9487 text: text_style,
9488 scrollbar_width: cx.editor_style.scrollbar_width,
9489 syntax: cx.editor_style.syntax.clone(),
9490 status: cx.editor_style.status.clone(),
9491 inlay_hints_style: HighlightStyle {
9492 color: Some(cx.theme().status().hint),
9493 font_weight: Some(FontWeight::BOLD),
9494 ..HighlightStyle::default()
9495 },
9496 suggestions_style: HighlightStyle {
9497 color: Some(cx.theme().status().predictive),
9498 ..HighlightStyle::default()
9499 },
9500 },
9501 ))
9502 .into_any_element()
9503 }
9504 }),
9505 disposition: BlockDisposition::Below,
9506 }],
9507 Some(Autoscroll::fit()),
9508 cx,
9509 )[0];
9510 this.pending_rename = Some(RenameState {
9511 range,
9512 old_name,
9513 editor: rename_editor,
9514 block_id,
9515 });
9516 })?;
9517 }
9518
9519 Ok(())
9520 }))
9521 }
9522
9523 pub fn confirm_rename(
9524 &mut self,
9525 _: &ConfirmRename,
9526 cx: &mut ViewContext<Self>,
9527 ) -> Option<Task<Result<()>>> {
9528 let rename = self.take_rename(false, cx)?;
9529 let workspace = self.workspace()?;
9530 let (start_buffer, start) = self
9531 .buffer
9532 .read(cx)
9533 .text_anchor_for_position(rename.range.start, cx)?;
9534 let (end_buffer, end) = self
9535 .buffer
9536 .read(cx)
9537 .text_anchor_for_position(rename.range.end, cx)?;
9538 if start_buffer != end_buffer {
9539 return None;
9540 }
9541
9542 let buffer = start_buffer;
9543 let range = start..end;
9544 let old_name = rename.old_name;
9545 let new_name = rename.editor.read(cx).text(cx);
9546
9547 let rename = workspace
9548 .read(cx)
9549 .project()
9550 .clone()
9551 .update(cx, |project, cx| {
9552 project.perform_rename(buffer.clone(), range.start, new_name.clone(), true, cx)
9553 });
9554 let workspace = workspace.downgrade();
9555
9556 Some(cx.spawn(|editor, mut cx| async move {
9557 let project_transaction = rename.await?;
9558 Self::open_project_transaction(
9559 &editor,
9560 workspace,
9561 project_transaction,
9562 format!("Rename: {} → {}", old_name, new_name),
9563 cx.clone(),
9564 )
9565 .await?;
9566
9567 editor.update(&mut cx, |editor, cx| {
9568 editor.refresh_document_highlights(cx);
9569 })?;
9570 Ok(())
9571 }))
9572 }
9573
9574 fn take_rename(
9575 &mut self,
9576 moving_cursor: bool,
9577 cx: &mut ViewContext<Self>,
9578 ) -> Option<RenameState> {
9579 let rename = self.pending_rename.take()?;
9580 if rename.editor.focus_handle(cx).is_focused(cx) {
9581 cx.focus(&self.focus_handle);
9582 }
9583
9584 self.remove_blocks(
9585 [rename.block_id].into_iter().collect(),
9586 Some(Autoscroll::fit()),
9587 cx,
9588 );
9589 self.clear_highlights::<Rename>(cx);
9590 self.show_local_selections = true;
9591
9592 if moving_cursor {
9593 let rename_editor = rename.editor.read(cx);
9594 let cursor_in_rename_editor = rename_editor.selections.newest::<usize>(cx).head();
9595
9596 // Update the selection to match the position of the selection inside
9597 // the rename editor.
9598 let snapshot = self.buffer.read(cx).read(cx);
9599 let rename_range = rename.range.to_offset(&snapshot);
9600 let cursor_in_editor = snapshot
9601 .clip_offset(rename_range.start + cursor_in_rename_editor, Bias::Left)
9602 .min(rename_range.end);
9603 drop(snapshot);
9604
9605 self.change_selections(None, cx, |s| {
9606 s.select_ranges(vec![cursor_in_editor..cursor_in_editor])
9607 });
9608 } else {
9609 self.refresh_document_highlights(cx);
9610 }
9611
9612 Some(rename)
9613 }
9614
9615 pub fn pending_rename(&self) -> Option<&RenameState> {
9616 self.pending_rename.as_ref()
9617 }
9618
9619 fn format(&mut self, _: &Format, cx: &mut ViewContext<Self>) -> Option<Task<Result<()>>> {
9620 let project = match &self.project {
9621 Some(project) => project.clone(),
9622 None => return None,
9623 };
9624
9625 Some(self.perform_format(project, FormatTrigger::Manual, cx))
9626 }
9627
9628 fn perform_format(
9629 &mut self,
9630 project: Model<Project>,
9631 trigger: FormatTrigger,
9632 cx: &mut ViewContext<Self>,
9633 ) -> Task<Result<()>> {
9634 let buffer = self.buffer().clone();
9635 let mut buffers = buffer.read(cx).all_buffers();
9636 if trigger == FormatTrigger::Save {
9637 buffers.retain(|buffer| buffer.read(cx).is_dirty());
9638 }
9639
9640 let mut timeout = cx.background_executor().timer(FORMAT_TIMEOUT).fuse();
9641 let format = project.update(cx, |project, cx| project.format(buffers, true, trigger, cx));
9642
9643 cx.spawn(|_, mut cx| async move {
9644 let transaction = futures::select_biased! {
9645 () = timeout => {
9646 log::warn!("timed out waiting for formatting");
9647 None
9648 }
9649 transaction = format.log_err().fuse() => transaction,
9650 };
9651
9652 buffer
9653 .update(&mut cx, |buffer, cx| {
9654 if let Some(transaction) = transaction {
9655 if !buffer.is_singleton() {
9656 buffer.push_transaction(&transaction.0, cx);
9657 }
9658 }
9659
9660 cx.notify();
9661 })
9662 .ok();
9663
9664 Ok(())
9665 })
9666 }
9667
9668 fn restart_language_server(&mut self, _: &RestartLanguageServer, cx: &mut ViewContext<Self>) {
9669 if let Some(project) = self.project.clone() {
9670 self.buffer.update(cx, |multi_buffer, cx| {
9671 project.update(cx, |project, cx| {
9672 project.restart_language_servers_for_buffers(multi_buffer.all_buffers(), cx);
9673 });
9674 })
9675 }
9676 }
9677
9678 fn cancel_language_server_work(
9679 &mut self,
9680 _: &CancelLanguageServerWork,
9681 cx: &mut ViewContext<Self>,
9682 ) {
9683 if let Some(project) = self.project.clone() {
9684 self.buffer.update(cx, |multi_buffer, cx| {
9685 project.update(cx, |project, cx| {
9686 project.cancel_language_server_work_for_buffers(multi_buffer.all_buffers(), cx);
9687 });
9688 })
9689 }
9690 }
9691
9692 fn show_character_palette(&mut self, _: &ShowCharacterPalette, cx: &mut ViewContext<Self>) {
9693 cx.show_character_palette();
9694 }
9695
9696 fn refresh_active_diagnostics(&mut self, cx: &mut ViewContext<Editor>) {
9697 if let Some(active_diagnostics) = self.active_diagnostics.as_mut() {
9698 let buffer = self.buffer.read(cx).snapshot(cx);
9699 let primary_range_start = active_diagnostics.primary_range.start.to_offset(&buffer);
9700 let is_valid = buffer
9701 .diagnostics_in_range::<_, usize>(active_diagnostics.primary_range.clone(), false)
9702 .any(|entry| {
9703 entry.diagnostic.is_primary
9704 && !entry.range.is_empty()
9705 && entry.range.start == primary_range_start
9706 && entry.diagnostic.message == active_diagnostics.primary_message
9707 });
9708
9709 if is_valid != active_diagnostics.is_valid {
9710 active_diagnostics.is_valid = is_valid;
9711 let mut new_styles = HashMap::default();
9712 for (block_id, diagnostic) in &active_diagnostics.blocks {
9713 new_styles.insert(
9714 *block_id,
9715 (
9716 None,
9717 diagnostic_block_renderer(diagnostic.clone(), is_valid),
9718 ),
9719 );
9720 }
9721 self.display_map.update(cx, |display_map, cx| {
9722 display_map.replace_blocks(new_styles, cx)
9723 });
9724 }
9725 }
9726 }
9727
9728 fn activate_diagnostics(&mut self, group_id: usize, cx: &mut ViewContext<Self>) -> bool {
9729 self.dismiss_diagnostics(cx);
9730 let snapshot = self.snapshot(cx);
9731 self.active_diagnostics = self.display_map.update(cx, |display_map, cx| {
9732 let buffer = self.buffer.read(cx).snapshot(cx);
9733
9734 let mut primary_range = None;
9735 let mut primary_message = None;
9736 let mut group_end = Point::zero();
9737 let diagnostic_group = buffer
9738 .diagnostic_group::<MultiBufferPoint>(group_id)
9739 .filter_map(|entry| {
9740 if snapshot.is_line_folded(MultiBufferRow(entry.range.start.row))
9741 && (entry.range.start.row == entry.range.end.row
9742 || snapshot.is_line_folded(MultiBufferRow(entry.range.end.row)))
9743 {
9744 return None;
9745 }
9746 if entry.range.end > group_end {
9747 group_end = entry.range.end;
9748 }
9749 if entry.diagnostic.is_primary {
9750 primary_range = Some(entry.range.clone());
9751 primary_message = Some(entry.diagnostic.message.clone());
9752 }
9753 Some(entry)
9754 })
9755 .collect::<Vec<_>>();
9756 let primary_range = primary_range?;
9757 let primary_message = primary_message?;
9758 let primary_range =
9759 buffer.anchor_after(primary_range.start)..buffer.anchor_before(primary_range.end);
9760
9761 let blocks = display_map
9762 .insert_blocks(
9763 diagnostic_group.iter().map(|entry| {
9764 let diagnostic = entry.diagnostic.clone();
9765 let message_height = diagnostic.message.matches('\n').count() as u8 + 1;
9766 BlockProperties {
9767 style: BlockStyle::Fixed,
9768 position: buffer.anchor_after(entry.range.start),
9769 height: message_height,
9770 render: diagnostic_block_renderer(diagnostic, true),
9771 disposition: BlockDisposition::Below,
9772 }
9773 }),
9774 cx,
9775 )
9776 .into_iter()
9777 .zip(diagnostic_group.into_iter().map(|entry| entry.diagnostic))
9778 .collect();
9779
9780 Some(ActiveDiagnosticGroup {
9781 primary_range,
9782 primary_message,
9783 group_id,
9784 blocks,
9785 is_valid: true,
9786 })
9787 });
9788 self.active_diagnostics.is_some()
9789 }
9790
9791 fn dismiss_diagnostics(&mut self, cx: &mut ViewContext<Self>) {
9792 if let Some(active_diagnostic_group) = self.active_diagnostics.take() {
9793 self.display_map.update(cx, |display_map, cx| {
9794 display_map.remove_blocks(active_diagnostic_group.blocks.into_keys().collect(), cx);
9795 });
9796 cx.notify();
9797 }
9798 }
9799
9800 pub fn set_selections_from_remote(
9801 &mut self,
9802 selections: Vec<Selection<Anchor>>,
9803 pending_selection: Option<Selection<Anchor>>,
9804 cx: &mut ViewContext<Self>,
9805 ) {
9806 let old_cursor_position = self.selections.newest_anchor().head();
9807 self.selections.change_with(cx, |s| {
9808 s.select_anchors(selections);
9809 if let Some(pending_selection) = pending_selection {
9810 s.set_pending(pending_selection, SelectMode::Character);
9811 } else {
9812 s.clear_pending();
9813 }
9814 });
9815 self.selections_did_change(false, &old_cursor_position, true, cx);
9816 }
9817
9818 fn push_to_selection_history(&mut self) {
9819 self.selection_history.push(SelectionHistoryEntry {
9820 selections: self.selections.disjoint_anchors(),
9821 select_next_state: self.select_next_state.clone(),
9822 select_prev_state: self.select_prev_state.clone(),
9823 add_selections_state: self.add_selections_state.clone(),
9824 });
9825 }
9826
9827 pub fn transact(
9828 &mut self,
9829 cx: &mut ViewContext<Self>,
9830 update: impl FnOnce(&mut Self, &mut ViewContext<Self>),
9831 ) -> Option<TransactionId> {
9832 self.start_transaction_at(Instant::now(), cx);
9833 update(self, cx);
9834 self.end_transaction_at(Instant::now(), cx)
9835 }
9836
9837 fn start_transaction_at(&mut self, now: Instant, cx: &mut ViewContext<Self>) {
9838 self.end_selection(cx);
9839 if let Some(tx_id) = self
9840 .buffer
9841 .update(cx, |buffer, cx| buffer.start_transaction_at(now, cx))
9842 {
9843 self.selection_history
9844 .insert_transaction(tx_id, self.selections.disjoint_anchors());
9845 cx.emit(EditorEvent::TransactionBegun {
9846 transaction_id: tx_id,
9847 })
9848 }
9849 }
9850
9851 fn end_transaction_at(
9852 &mut self,
9853 now: Instant,
9854 cx: &mut ViewContext<Self>,
9855 ) -> Option<TransactionId> {
9856 if let Some(transaction_id) = self
9857 .buffer
9858 .update(cx, |buffer, cx| buffer.end_transaction_at(now, cx))
9859 {
9860 if let Some((_, end_selections)) =
9861 self.selection_history.transaction_mut(transaction_id)
9862 {
9863 *end_selections = Some(self.selections.disjoint_anchors());
9864 } else {
9865 log::error!("unexpectedly ended a transaction that wasn't started by this editor");
9866 }
9867
9868 cx.emit(EditorEvent::Edited { transaction_id });
9869 Some(transaction_id)
9870 } else {
9871 None
9872 }
9873 }
9874
9875 pub fn fold(&mut self, _: &actions::Fold, cx: &mut ViewContext<Self>) {
9876 let mut fold_ranges = Vec::new();
9877
9878 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
9879
9880 let selections = self.selections.all_adjusted(cx);
9881 for selection in selections {
9882 let range = selection.range().sorted();
9883 let buffer_start_row = range.start.row;
9884
9885 for row in (0..=range.end.row).rev() {
9886 if let Some((foldable_range, fold_text)) =
9887 display_map.foldable_range(MultiBufferRow(row))
9888 {
9889 if foldable_range.end.row >= buffer_start_row {
9890 fold_ranges.push((foldable_range, fold_text));
9891 if row <= range.start.row {
9892 break;
9893 }
9894 }
9895 }
9896 }
9897 }
9898
9899 self.fold_ranges(fold_ranges, true, cx);
9900 }
9901
9902 pub fn fold_at(&mut self, fold_at: &FoldAt, cx: &mut ViewContext<Self>) {
9903 let buffer_row = fold_at.buffer_row;
9904 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
9905
9906 if let Some((fold_range, placeholder)) = display_map.foldable_range(buffer_row) {
9907 let autoscroll = self
9908 .selections
9909 .all::<Point>(cx)
9910 .iter()
9911 .any(|selection| fold_range.overlaps(&selection.range()));
9912
9913 self.fold_ranges([(fold_range, placeholder)], autoscroll, cx);
9914 }
9915 }
9916
9917 pub fn unfold_lines(&mut self, _: &UnfoldLines, cx: &mut ViewContext<Self>) {
9918 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
9919 let buffer = &display_map.buffer_snapshot;
9920 let selections = self.selections.all::<Point>(cx);
9921 let ranges = selections
9922 .iter()
9923 .map(|s| {
9924 let range = s.display_range(&display_map).sorted();
9925 let mut start = range.start.to_point(&display_map);
9926 let mut end = range.end.to_point(&display_map);
9927 start.column = 0;
9928 end.column = buffer.line_len(MultiBufferRow(end.row));
9929 start..end
9930 })
9931 .collect::<Vec<_>>();
9932
9933 self.unfold_ranges(ranges, true, true, cx);
9934 }
9935
9936 pub fn unfold_at(&mut self, unfold_at: &UnfoldAt, cx: &mut ViewContext<Self>) {
9937 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
9938
9939 let intersection_range = Point::new(unfold_at.buffer_row.0, 0)
9940 ..Point::new(
9941 unfold_at.buffer_row.0,
9942 display_map.buffer_snapshot.line_len(unfold_at.buffer_row),
9943 );
9944
9945 let autoscroll = self
9946 .selections
9947 .all::<Point>(cx)
9948 .iter()
9949 .any(|selection| selection.range().overlaps(&intersection_range));
9950
9951 self.unfold_ranges(std::iter::once(intersection_range), true, autoscroll, cx)
9952 }
9953
9954 pub fn fold_selected_ranges(&mut self, _: &FoldSelectedRanges, cx: &mut ViewContext<Self>) {
9955 let selections = self.selections.all::<Point>(cx);
9956 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
9957 let line_mode = self.selections.line_mode;
9958 let ranges = selections.into_iter().map(|s| {
9959 if line_mode {
9960 let start = Point::new(s.start.row, 0);
9961 let end = Point::new(
9962 s.end.row,
9963 display_map
9964 .buffer_snapshot
9965 .line_len(MultiBufferRow(s.end.row)),
9966 );
9967 (start..end, display_map.fold_placeholder.clone())
9968 } else {
9969 (s.start..s.end, display_map.fold_placeholder.clone())
9970 }
9971 });
9972 self.fold_ranges(ranges, true, cx);
9973 }
9974
9975 pub fn fold_ranges<T: ToOffset + Clone>(
9976 &mut self,
9977 ranges: impl IntoIterator<Item = (Range<T>, FoldPlaceholder)>,
9978 auto_scroll: bool,
9979 cx: &mut ViewContext<Self>,
9980 ) {
9981 let mut fold_ranges = Vec::new();
9982 let mut buffers_affected = HashMap::default();
9983 let multi_buffer = self.buffer().read(cx);
9984 for (fold_range, fold_text) in ranges {
9985 if let Some((_, buffer, _)) =
9986 multi_buffer.excerpt_containing(fold_range.start.clone(), cx)
9987 {
9988 buffers_affected.insert(buffer.read(cx).remote_id(), buffer);
9989 };
9990 fold_ranges.push((fold_range, fold_text));
9991 }
9992
9993 let mut ranges = fold_ranges.into_iter().peekable();
9994 if ranges.peek().is_some() {
9995 self.display_map.update(cx, |map, cx| map.fold(ranges, cx));
9996
9997 if auto_scroll {
9998 self.request_autoscroll(Autoscroll::fit(), cx);
9999 }
10000
10001 for buffer in buffers_affected.into_values() {
10002 self.sync_expanded_diff_hunks(buffer, cx);
10003 }
10004
10005 cx.notify();
10006
10007 if let Some(active_diagnostics) = self.active_diagnostics.take() {
10008 // Clear diagnostics block when folding a range that contains it.
10009 let snapshot = self.snapshot(cx);
10010 if snapshot.intersects_fold(active_diagnostics.primary_range.start) {
10011 drop(snapshot);
10012 self.active_diagnostics = Some(active_diagnostics);
10013 self.dismiss_diagnostics(cx);
10014 } else {
10015 self.active_diagnostics = Some(active_diagnostics);
10016 }
10017 }
10018
10019 self.scrollbar_marker_state.dirty = true;
10020 }
10021 }
10022
10023 pub fn unfold_ranges<T: ToOffset + Clone>(
10024 &mut self,
10025 ranges: impl IntoIterator<Item = Range<T>>,
10026 inclusive: bool,
10027 auto_scroll: bool,
10028 cx: &mut ViewContext<Self>,
10029 ) {
10030 let mut unfold_ranges = Vec::new();
10031 let mut buffers_affected = HashMap::default();
10032 let multi_buffer = self.buffer().read(cx);
10033 for range in ranges {
10034 if let Some((_, buffer, _)) = multi_buffer.excerpt_containing(range.start.clone(), cx) {
10035 buffers_affected.insert(buffer.read(cx).remote_id(), buffer);
10036 };
10037 unfold_ranges.push(range);
10038 }
10039
10040 let mut ranges = unfold_ranges.into_iter().peekable();
10041 if ranges.peek().is_some() {
10042 self.display_map
10043 .update(cx, |map, cx| map.unfold(ranges, inclusive, cx));
10044 if auto_scroll {
10045 self.request_autoscroll(Autoscroll::fit(), cx);
10046 }
10047
10048 for buffer in buffers_affected.into_values() {
10049 self.sync_expanded_diff_hunks(buffer, cx);
10050 }
10051
10052 cx.notify();
10053 self.scrollbar_marker_state.dirty = true;
10054 self.active_indent_guides_state.dirty = true;
10055 }
10056 }
10057
10058 pub fn set_gutter_hovered(&mut self, hovered: bool, cx: &mut ViewContext<Self>) {
10059 if hovered != self.gutter_hovered {
10060 self.gutter_hovered = hovered;
10061 cx.notify();
10062 }
10063 }
10064
10065 pub fn insert_blocks(
10066 &mut self,
10067 blocks: impl IntoIterator<Item = BlockProperties<Anchor>>,
10068 autoscroll: Option<Autoscroll>,
10069 cx: &mut ViewContext<Self>,
10070 ) -> Vec<BlockId> {
10071 let blocks = self
10072 .display_map
10073 .update(cx, |display_map, cx| display_map.insert_blocks(blocks, cx));
10074 if let Some(autoscroll) = autoscroll {
10075 self.request_autoscroll(autoscroll, cx);
10076 }
10077 blocks
10078 }
10079
10080 pub fn replace_blocks(
10081 &mut self,
10082 blocks: HashMap<BlockId, (Option<u8>, RenderBlock)>,
10083 autoscroll: Option<Autoscroll>,
10084 cx: &mut ViewContext<Self>,
10085 ) {
10086 self.display_map
10087 .update(cx, |display_map, cx| display_map.replace_blocks(blocks, cx));
10088 if let Some(autoscroll) = autoscroll {
10089 self.request_autoscroll(autoscroll, cx);
10090 }
10091 }
10092
10093 pub fn remove_blocks(
10094 &mut self,
10095 block_ids: HashSet<BlockId>,
10096 autoscroll: Option<Autoscroll>,
10097 cx: &mut ViewContext<Self>,
10098 ) {
10099 self.display_map.update(cx, |display_map, cx| {
10100 display_map.remove_blocks(block_ids, cx)
10101 });
10102 if let Some(autoscroll) = autoscroll {
10103 self.request_autoscroll(autoscroll, cx);
10104 }
10105 }
10106
10107 pub fn row_for_block(
10108 &self,
10109 block_id: BlockId,
10110 cx: &mut ViewContext<Self>,
10111 ) -> Option<DisplayRow> {
10112 self.display_map
10113 .update(cx, |map, cx| map.row_for_block(block_id, cx))
10114 }
10115
10116 pub fn insert_creases(
10117 &mut self,
10118 creases: impl IntoIterator<Item = Crease>,
10119 cx: &mut ViewContext<Self>,
10120 ) -> Vec<CreaseId> {
10121 self.display_map
10122 .update(cx, |map, cx| map.insert_creases(creases, cx))
10123 }
10124
10125 pub fn remove_creases(
10126 &mut self,
10127 ids: impl IntoIterator<Item = CreaseId>,
10128 cx: &mut ViewContext<Self>,
10129 ) {
10130 self.display_map
10131 .update(cx, |map, cx| map.remove_creases(ids, cx));
10132 }
10133
10134 pub fn longest_row(&self, cx: &mut AppContext) -> DisplayRow {
10135 self.display_map
10136 .update(cx, |map, cx| map.snapshot(cx))
10137 .longest_row()
10138 }
10139
10140 pub fn max_point(&self, cx: &mut AppContext) -> DisplayPoint {
10141 self.display_map
10142 .update(cx, |map, cx| map.snapshot(cx))
10143 .max_point()
10144 }
10145
10146 pub fn text(&self, cx: &AppContext) -> String {
10147 self.buffer.read(cx).read(cx).text()
10148 }
10149
10150 pub fn text_option(&self, cx: &AppContext) -> Option<String> {
10151 let text = self.text(cx);
10152 let text = text.trim();
10153
10154 if text.is_empty() {
10155 return None;
10156 }
10157
10158 Some(text.to_string())
10159 }
10160
10161 pub fn set_text(&mut self, text: impl Into<Arc<str>>, cx: &mut ViewContext<Self>) {
10162 self.transact(cx, |this, cx| {
10163 this.buffer
10164 .read(cx)
10165 .as_singleton()
10166 .expect("you can only call set_text on editors for singleton buffers")
10167 .update(cx, |buffer, cx| buffer.set_text(text, cx));
10168 });
10169 }
10170
10171 pub fn display_text(&self, cx: &mut AppContext) -> String {
10172 self.display_map
10173 .update(cx, |map, cx| map.snapshot(cx))
10174 .text()
10175 }
10176
10177 pub fn wrap_guides(&self, cx: &AppContext) -> SmallVec<[(usize, bool); 2]> {
10178 let mut wrap_guides = smallvec::smallvec![];
10179
10180 if self.show_wrap_guides == Some(false) {
10181 return wrap_guides;
10182 }
10183
10184 let settings = self.buffer.read(cx).settings_at(0, cx);
10185 if settings.show_wrap_guides {
10186 if let SoftWrap::Column(soft_wrap) = self.soft_wrap_mode(cx) {
10187 wrap_guides.push((soft_wrap as usize, true));
10188 }
10189 wrap_guides.extend(settings.wrap_guides.iter().map(|guide| (*guide, false)))
10190 }
10191
10192 wrap_guides
10193 }
10194
10195 pub fn soft_wrap_mode(&self, cx: &AppContext) -> SoftWrap {
10196 let settings = self.buffer.read(cx).settings_at(0, cx);
10197 let mode = self
10198 .soft_wrap_mode_override
10199 .unwrap_or_else(|| settings.soft_wrap);
10200 match mode {
10201 language_settings::SoftWrap::None => SoftWrap::None,
10202 language_settings::SoftWrap::PreferLine => SoftWrap::PreferLine,
10203 language_settings::SoftWrap::EditorWidth => SoftWrap::EditorWidth,
10204 language_settings::SoftWrap::PreferredLineLength => {
10205 SoftWrap::Column(settings.preferred_line_length)
10206 }
10207 }
10208 }
10209
10210 pub fn set_soft_wrap_mode(
10211 &mut self,
10212 mode: language_settings::SoftWrap,
10213 cx: &mut ViewContext<Self>,
10214 ) {
10215 self.soft_wrap_mode_override = Some(mode);
10216 cx.notify();
10217 }
10218
10219 pub fn set_style(&mut self, style: EditorStyle, cx: &mut ViewContext<Self>) {
10220 let rem_size = cx.rem_size();
10221 self.display_map.update(cx, |map, cx| {
10222 map.set_font(
10223 style.text.font(),
10224 style.text.font_size.to_pixels(rem_size),
10225 cx,
10226 )
10227 });
10228 self.style = Some(style);
10229 }
10230
10231 pub fn style(&self) -> Option<&EditorStyle> {
10232 self.style.as_ref()
10233 }
10234
10235 // Called by the element. This method is not designed to be called outside of the editor
10236 // element's layout code because it does not notify when rewrapping is computed synchronously.
10237 pub(crate) fn set_wrap_width(&self, width: Option<Pixels>, cx: &mut AppContext) -> bool {
10238 self.display_map
10239 .update(cx, |map, cx| map.set_wrap_width(width, cx))
10240 }
10241
10242 pub fn toggle_soft_wrap(&mut self, _: &ToggleSoftWrap, cx: &mut ViewContext<Self>) {
10243 if self.soft_wrap_mode_override.is_some() {
10244 self.soft_wrap_mode_override.take();
10245 } else {
10246 let soft_wrap = match self.soft_wrap_mode(cx) {
10247 SoftWrap::None | SoftWrap::PreferLine => language_settings::SoftWrap::EditorWidth,
10248 SoftWrap::EditorWidth | SoftWrap::Column(_) => {
10249 language_settings::SoftWrap::PreferLine
10250 }
10251 };
10252 self.soft_wrap_mode_override = Some(soft_wrap);
10253 }
10254 cx.notify();
10255 }
10256
10257 pub fn toggle_tab_bar(&mut self, _: &ToggleTabBar, cx: &mut ViewContext<Self>) {
10258 let Some(workspace) = self.workspace() else {
10259 return;
10260 };
10261 let fs = workspace.read(cx).app_state().fs.clone();
10262 let current_show = TabBarSettings::get_global(cx).show;
10263 update_settings_file::<TabBarSettings>(fs, cx, move |setting| {
10264 setting.show = Some(!current_show);
10265 });
10266 }
10267
10268 pub fn toggle_indent_guides(&mut self, _: &ToggleIndentGuides, cx: &mut ViewContext<Self>) {
10269 let currently_enabled = self.should_show_indent_guides().unwrap_or_else(|| {
10270 self.buffer
10271 .read(cx)
10272 .settings_at(0, cx)
10273 .indent_guides
10274 .enabled
10275 });
10276 self.show_indent_guides = Some(!currently_enabled);
10277 cx.notify();
10278 }
10279
10280 fn should_show_indent_guides(&self) -> Option<bool> {
10281 self.show_indent_guides
10282 }
10283
10284 pub fn toggle_line_numbers(&mut self, _: &ToggleLineNumbers, cx: &mut ViewContext<Self>) {
10285 let mut editor_settings = EditorSettings::get_global(cx).clone();
10286 editor_settings.gutter.line_numbers = !editor_settings.gutter.line_numbers;
10287 EditorSettings::override_global(editor_settings, cx);
10288 }
10289
10290 pub fn set_show_gutter(&mut self, show_gutter: bool, cx: &mut ViewContext<Self>) {
10291 self.show_gutter = show_gutter;
10292 cx.notify();
10293 }
10294
10295 pub fn set_show_line_numbers(&mut self, show_line_numbers: bool, cx: &mut ViewContext<Self>) {
10296 self.show_line_numbers = Some(show_line_numbers);
10297 cx.notify();
10298 }
10299
10300 pub fn set_show_git_diff_gutter(
10301 &mut self,
10302 show_git_diff_gutter: bool,
10303 cx: &mut ViewContext<Self>,
10304 ) {
10305 self.show_git_diff_gutter = Some(show_git_diff_gutter);
10306 cx.notify();
10307 }
10308
10309 pub fn set_show_code_actions(&mut self, show_code_actions: bool, cx: &mut ViewContext<Self>) {
10310 self.show_code_actions = Some(show_code_actions);
10311 cx.notify();
10312 }
10313
10314 pub fn set_show_runnables(&mut self, show_runnables: bool, cx: &mut ViewContext<Self>) {
10315 self.show_runnables = Some(show_runnables);
10316 cx.notify();
10317 }
10318
10319 pub fn set_show_wrap_guides(&mut self, show_wrap_guides: bool, cx: &mut ViewContext<Self>) {
10320 self.show_wrap_guides = Some(show_wrap_guides);
10321 cx.notify();
10322 }
10323
10324 pub fn set_show_indent_guides(&mut self, show_indent_guides: bool, cx: &mut ViewContext<Self>) {
10325 self.show_indent_guides = Some(show_indent_guides);
10326 cx.notify();
10327 }
10328
10329 pub fn reveal_in_finder(&mut self, _: &RevealInFinder, cx: &mut ViewContext<Self>) {
10330 if let Some(buffer) = self.buffer().read(cx).as_singleton() {
10331 if let Some(file) = buffer.read(cx).file().and_then(|f| f.as_local()) {
10332 cx.reveal_path(&file.abs_path(cx));
10333 }
10334 }
10335 }
10336
10337 pub fn copy_path(&mut self, _: &CopyPath, cx: &mut ViewContext<Self>) {
10338 if let Some(buffer) = self.buffer().read(cx).as_singleton() {
10339 if let Some(file) = buffer.read(cx).file().and_then(|f| f.as_local()) {
10340 if let Some(path) = file.abs_path(cx).to_str() {
10341 cx.write_to_clipboard(ClipboardItem::new(path.to_string()));
10342 }
10343 }
10344 }
10345 }
10346
10347 pub fn copy_relative_path(&mut self, _: &CopyRelativePath, cx: &mut ViewContext<Self>) {
10348 if let Some(buffer) = self.buffer().read(cx).as_singleton() {
10349 if let Some(file) = buffer.read(cx).file().and_then(|f| f.as_local()) {
10350 if let Some(path) = file.path().to_str() {
10351 cx.write_to_clipboard(ClipboardItem::new(path.to_string()));
10352 }
10353 }
10354 }
10355 }
10356
10357 pub fn toggle_git_blame(&mut self, _: &ToggleGitBlame, cx: &mut ViewContext<Self>) {
10358 self.show_git_blame_gutter = !self.show_git_blame_gutter;
10359
10360 if self.show_git_blame_gutter && !self.has_blame_entries(cx) {
10361 self.start_git_blame(true, cx);
10362 }
10363
10364 cx.notify();
10365 }
10366
10367 pub fn toggle_git_blame_inline(
10368 &mut self,
10369 _: &ToggleGitBlameInline,
10370 cx: &mut ViewContext<Self>,
10371 ) {
10372 self.toggle_git_blame_inline_internal(true, cx);
10373 cx.notify();
10374 }
10375
10376 pub fn git_blame_inline_enabled(&self) -> bool {
10377 self.git_blame_inline_enabled
10378 }
10379
10380 pub fn toggle_selection_menu(&mut self, _: &ToggleSelectionMenu, cx: &mut ViewContext<Self>) {
10381 self.show_selection_menu = self
10382 .show_selection_menu
10383 .map(|show_selections_menu| !show_selections_menu)
10384 .or_else(|| Some(!EditorSettings::get_global(cx).toolbar.selections_menu));
10385
10386 cx.notify();
10387 }
10388
10389 pub fn selection_menu_enabled(&self, cx: &AppContext) -> bool {
10390 self.show_selection_menu
10391 .unwrap_or_else(|| EditorSettings::get_global(cx).toolbar.selections_menu)
10392 }
10393
10394 fn start_git_blame(&mut self, user_triggered: bool, cx: &mut ViewContext<Self>) {
10395 if let Some(project) = self.project.as_ref() {
10396 let Some(buffer) = self.buffer().read(cx).as_singleton() else {
10397 return;
10398 };
10399
10400 if buffer.read(cx).file().is_none() {
10401 return;
10402 }
10403
10404 let focused = self.focus_handle(cx).contains_focused(cx);
10405
10406 let project = project.clone();
10407 let blame =
10408 cx.new_model(|cx| GitBlame::new(buffer, project, user_triggered, focused, cx));
10409 self.blame_subscription = Some(cx.observe(&blame, |_, _, cx| cx.notify()));
10410 self.blame = Some(blame);
10411 }
10412 }
10413
10414 fn toggle_git_blame_inline_internal(
10415 &mut self,
10416 user_triggered: bool,
10417 cx: &mut ViewContext<Self>,
10418 ) {
10419 if self.git_blame_inline_enabled {
10420 self.git_blame_inline_enabled = false;
10421 self.show_git_blame_inline = false;
10422 self.show_git_blame_inline_delay_task.take();
10423 } else {
10424 self.git_blame_inline_enabled = true;
10425 self.start_git_blame_inline(user_triggered, cx);
10426 }
10427
10428 cx.notify();
10429 }
10430
10431 fn start_git_blame_inline(&mut self, user_triggered: bool, cx: &mut ViewContext<Self>) {
10432 self.start_git_blame(user_triggered, cx);
10433
10434 if ProjectSettings::get_global(cx)
10435 .git
10436 .inline_blame_delay()
10437 .is_some()
10438 {
10439 self.start_inline_blame_timer(cx);
10440 } else {
10441 self.show_git_blame_inline = true
10442 }
10443 }
10444
10445 pub fn blame(&self) -> Option<&Model<GitBlame>> {
10446 self.blame.as_ref()
10447 }
10448
10449 pub fn render_git_blame_gutter(&mut self, cx: &mut WindowContext) -> bool {
10450 self.show_git_blame_gutter && self.has_blame_entries(cx)
10451 }
10452
10453 pub fn render_git_blame_inline(&mut self, cx: &mut WindowContext) -> bool {
10454 self.show_git_blame_inline
10455 && self.focus_handle.is_focused(cx)
10456 && !self.newest_selection_head_on_empty_line(cx)
10457 && self.has_blame_entries(cx)
10458 }
10459
10460 fn has_blame_entries(&self, cx: &mut WindowContext) -> bool {
10461 self.blame()
10462 .map_or(false, |blame| blame.read(cx).has_generated_entries())
10463 }
10464
10465 fn newest_selection_head_on_empty_line(&mut self, cx: &mut WindowContext) -> bool {
10466 let cursor_anchor = self.selections.newest_anchor().head();
10467
10468 let snapshot = self.buffer.read(cx).snapshot(cx);
10469 let buffer_row = MultiBufferRow(cursor_anchor.to_point(&snapshot).row);
10470
10471 snapshot.line_len(buffer_row) == 0
10472 }
10473
10474 fn get_permalink_to_line(&mut self, cx: &mut ViewContext<Self>) -> Result<url::Url> {
10475 let (path, selection, repo) = maybe!({
10476 let project_handle = self.project.as_ref()?.clone();
10477 let project = project_handle.read(cx);
10478
10479 let selection = self.selections.newest::<Point>(cx);
10480 let selection_range = selection.range();
10481
10482 let (buffer, selection) = if let Some(buffer) = self.buffer().read(cx).as_singleton() {
10483 (buffer, selection_range.start.row..selection_range.end.row)
10484 } else {
10485 let buffer_ranges = self
10486 .buffer()
10487 .read(cx)
10488 .range_to_buffer_ranges(selection_range, cx);
10489
10490 let (buffer, range, _) = if selection.reversed {
10491 buffer_ranges.first()
10492 } else {
10493 buffer_ranges.last()
10494 }?;
10495
10496 let snapshot = buffer.read(cx).snapshot();
10497 let selection = text::ToPoint::to_point(&range.start, &snapshot).row
10498 ..text::ToPoint::to_point(&range.end, &snapshot).row;
10499 (buffer.clone(), selection)
10500 };
10501
10502 let path = buffer
10503 .read(cx)
10504 .file()?
10505 .as_local()?
10506 .path()
10507 .to_str()?
10508 .to_string();
10509 let repo = project.get_repo(&buffer.read(cx).project_path(cx)?, cx)?;
10510 Some((path, selection, repo))
10511 })
10512 .ok_or_else(|| anyhow!("unable to open git repository"))?;
10513
10514 const REMOTE_NAME: &str = "origin";
10515 let origin_url = repo
10516 .remote_url(REMOTE_NAME)
10517 .ok_or_else(|| anyhow!("remote \"{REMOTE_NAME}\" not found"))?;
10518 let sha = repo
10519 .head_sha()
10520 .ok_or_else(|| anyhow!("failed to read HEAD SHA"))?;
10521
10522 let (provider, remote) =
10523 parse_git_remote_url(GitHostingProviderRegistry::default_global(cx), &origin_url)
10524 .ok_or_else(|| anyhow!("failed to parse Git remote URL"))?;
10525
10526 Ok(provider.build_permalink(
10527 remote,
10528 BuildPermalinkParams {
10529 sha: &sha,
10530 path: &path,
10531 selection: Some(selection),
10532 },
10533 ))
10534 }
10535
10536 pub fn copy_permalink_to_line(&mut self, _: &CopyPermalinkToLine, cx: &mut ViewContext<Self>) {
10537 let permalink = self.get_permalink_to_line(cx);
10538
10539 match permalink {
10540 Ok(permalink) => {
10541 cx.write_to_clipboard(ClipboardItem::new(permalink.to_string()));
10542 }
10543 Err(err) => {
10544 let message = format!("Failed to copy permalink: {err}");
10545
10546 Err::<(), anyhow::Error>(err).log_err();
10547
10548 if let Some(workspace) = self.workspace() {
10549 workspace.update(cx, |workspace, cx| {
10550 struct CopyPermalinkToLine;
10551
10552 workspace.show_toast(
10553 Toast::new(NotificationId::unique::<CopyPermalinkToLine>(), message),
10554 cx,
10555 )
10556 })
10557 }
10558 }
10559 }
10560 }
10561
10562 pub fn open_permalink_to_line(&mut self, _: &OpenPermalinkToLine, cx: &mut ViewContext<Self>) {
10563 let permalink = self.get_permalink_to_line(cx);
10564
10565 match permalink {
10566 Ok(permalink) => {
10567 cx.open_url(permalink.as_ref());
10568 }
10569 Err(err) => {
10570 let message = format!("Failed to open permalink: {err}");
10571
10572 Err::<(), anyhow::Error>(err).log_err();
10573
10574 if let Some(workspace) = self.workspace() {
10575 workspace.update(cx, |workspace, cx| {
10576 struct OpenPermalinkToLine;
10577
10578 workspace.show_toast(
10579 Toast::new(NotificationId::unique::<OpenPermalinkToLine>(), message),
10580 cx,
10581 )
10582 })
10583 }
10584 }
10585 }
10586 }
10587
10588 /// Adds or removes (on `None` color) a highlight for the rows corresponding to the anchor range given.
10589 /// On matching anchor range, replaces the old highlight; does not clear the other existing highlights.
10590 /// If multiple anchor ranges will produce highlights for the same row, the last range added will be used.
10591 pub fn highlight_rows<T: 'static>(
10592 &mut self,
10593 rows: RangeInclusive<Anchor>,
10594 color: Option<Hsla>,
10595 should_autoscroll: bool,
10596 cx: &mut ViewContext<Self>,
10597 ) {
10598 let snapshot = self.buffer().read(cx).snapshot(cx);
10599 let row_highlights = self.highlighted_rows.entry(TypeId::of::<T>()).or_default();
10600 let existing_highlight_index = row_highlights.binary_search_by(|highlight| {
10601 highlight
10602 .range
10603 .start()
10604 .cmp(&rows.start(), &snapshot)
10605 .then(highlight.range.end().cmp(&rows.end(), &snapshot))
10606 });
10607 match (color, existing_highlight_index) {
10608 (Some(_), Ok(ix)) | (_, Err(ix)) => row_highlights.insert(
10609 ix,
10610 RowHighlight {
10611 index: post_inc(&mut self.highlight_order),
10612 range: rows,
10613 should_autoscroll,
10614 color,
10615 },
10616 ),
10617 (None, Ok(i)) => {
10618 row_highlights.remove(i);
10619 }
10620 }
10621 }
10622
10623 /// Clear all anchor ranges for a certain highlight context type, so no corresponding rows will be highlighted.
10624 pub fn clear_row_highlights<T: 'static>(&mut self) {
10625 self.highlighted_rows.remove(&TypeId::of::<T>());
10626 }
10627
10628 /// For a highlight given context type, gets all anchor ranges that will be used for row highlighting.
10629 pub fn highlighted_rows<T: 'static>(
10630 &self,
10631 ) -> Option<impl Iterator<Item = (&RangeInclusive<Anchor>, Option<&Hsla>)>> {
10632 Some(
10633 self.highlighted_rows
10634 .get(&TypeId::of::<T>())?
10635 .iter()
10636 .map(|highlight| (&highlight.range, highlight.color.as_ref())),
10637 )
10638 }
10639
10640 /// Merges all anchor ranges for all context types ever set, picking the last highlight added in case of a row conflict.
10641 /// Rerturns a map of display rows that are highlighted and their corresponding highlight color.
10642 /// Allows to ignore certain kinds of highlights.
10643 pub fn highlighted_display_rows(
10644 &mut self,
10645 cx: &mut WindowContext,
10646 ) -> BTreeMap<DisplayRow, Hsla> {
10647 let snapshot = self.snapshot(cx);
10648 let mut used_highlight_orders = HashMap::default();
10649 self.highlighted_rows
10650 .iter()
10651 .flat_map(|(_, highlighted_rows)| highlighted_rows.iter())
10652 .fold(
10653 BTreeMap::<DisplayRow, Hsla>::new(),
10654 |mut unique_rows, highlight| {
10655 let start_row = highlight.range.start().to_display_point(&snapshot).row();
10656 let end_row = highlight.range.end().to_display_point(&snapshot).row();
10657 for row in start_row.0..=end_row.0 {
10658 let used_index =
10659 used_highlight_orders.entry(row).or_insert(highlight.index);
10660 if highlight.index >= *used_index {
10661 *used_index = highlight.index;
10662 match highlight.color {
10663 Some(hsla) => unique_rows.insert(DisplayRow(row), hsla),
10664 None => unique_rows.remove(&DisplayRow(row)),
10665 };
10666 }
10667 }
10668 unique_rows
10669 },
10670 )
10671 }
10672
10673 pub fn highlighted_display_row_for_autoscroll(
10674 &self,
10675 snapshot: &DisplaySnapshot,
10676 ) -> Option<DisplayRow> {
10677 self.highlighted_rows
10678 .values()
10679 .flat_map(|highlighted_rows| highlighted_rows.iter())
10680 .filter_map(|highlight| {
10681 if highlight.color.is_none() || !highlight.should_autoscroll {
10682 return None;
10683 }
10684 Some(highlight.range.start().to_display_point(&snapshot).row())
10685 })
10686 .min()
10687 }
10688
10689 pub fn set_search_within_ranges(
10690 &mut self,
10691 ranges: &[Range<Anchor>],
10692 cx: &mut ViewContext<Self>,
10693 ) {
10694 self.highlight_background::<SearchWithinRange>(
10695 ranges,
10696 |colors| colors.editor_document_highlight_read_background,
10697 cx,
10698 )
10699 }
10700
10701 pub fn set_breadcrumb_header(&mut self, new_header: String) {
10702 self.breadcrumb_header = Some(new_header);
10703 }
10704
10705 pub fn clear_search_within_ranges(&mut self, cx: &mut ViewContext<Self>) {
10706 self.clear_background_highlights::<SearchWithinRange>(cx);
10707 }
10708
10709 pub fn highlight_background<T: 'static>(
10710 &mut self,
10711 ranges: &[Range<Anchor>],
10712 color_fetcher: fn(&ThemeColors) -> Hsla,
10713 cx: &mut ViewContext<Self>,
10714 ) {
10715 let snapshot = self.snapshot(cx);
10716 // this is to try and catch a panic sooner
10717 for range in ranges {
10718 snapshot
10719 .buffer_snapshot
10720 .summary_for_anchor::<usize>(&range.start);
10721 snapshot
10722 .buffer_snapshot
10723 .summary_for_anchor::<usize>(&range.end);
10724 }
10725
10726 self.background_highlights
10727 .insert(TypeId::of::<T>(), (color_fetcher, Arc::from(ranges)));
10728 self.scrollbar_marker_state.dirty = true;
10729 cx.notify();
10730 }
10731
10732 pub fn clear_background_highlights<T: 'static>(
10733 &mut self,
10734 cx: &mut ViewContext<Self>,
10735 ) -> Option<BackgroundHighlight> {
10736 let text_highlights = self.background_highlights.remove(&TypeId::of::<T>())?;
10737 if !text_highlights.1.is_empty() {
10738 self.scrollbar_marker_state.dirty = true;
10739 cx.notify();
10740 }
10741 Some(text_highlights)
10742 }
10743
10744 pub fn highlight_gutter<T: 'static>(
10745 &mut self,
10746 ranges: &[Range<Anchor>],
10747 color_fetcher: fn(&AppContext) -> Hsla,
10748 cx: &mut ViewContext<Self>,
10749 ) {
10750 self.gutter_highlights
10751 .insert(TypeId::of::<T>(), (color_fetcher, Arc::from(ranges)));
10752 cx.notify();
10753 }
10754
10755 pub fn clear_gutter_highlights<T: 'static>(
10756 &mut self,
10757 cx: &mut ViewContext<Self>,
10758 ) -> Option<GutterHighlight> {
10759 cx.notify();
10760 self.gutter_highlights.remove(&TypeId::of::<T>())
10761 }
10762
10763 #[cfg(feature = "test-support")]
10764 pub fn all_text_background_highlights(
10765 &mut self,
10766 cx: &mut ViewContext<Self>,
10767 ) -> Vec<(Range<DisplayPoint>, Hsla)> {
10768 let snapshot = self.snapshot(cx);
10769 let buffer = &snapshot.buffer_snapshot;
10770 let start = buffer.anchor_before(0);
10771 let end = buffer.anchor_after(buffer.len());
10772 let theme = cx.theme().colors();
10773 self.background_highlights_in_range(start..end, &snapshot, theme)
10774 }
10775
10776 #[cfg(feature = "test-support")]
10777 pub fn search_background_highlights(
10778 &mut self,
10779 cx: &mut ViewContext<Self>,
10780 ) -> Vec<Range<Point>> {
10781 let snapshot = self.buffer().read(cx).snapshot(cx);
10782
10783 let highlights = self
10784 .background_highlights
10785 .get(&TypeId::of::<items::BufferSearchHighlights>());
10786
10787 if let Some((_color, ranges)) = highlights {
10788 ranges
10789 .iter()
10790 .map(|range| range.start.to_point(&snapshot)..range.end.to_point(&snapshot))
10791 .collect_vec()
10792 } else {
10793 vec![]
10794 }
10795 }
10796
10797 fn document_highlights_for_position<'a>(
10798 &'a self,
10799 position: Anchor,
10800 buffer: &'a MultiBufferSnapshot,
10801 ) -> impl 'a + Iterator<Item = &Range<Anchor>> {
10802 let read_highlights = self
10803 .background_highlights
10804 .get(&TypeId::of::<DocumentHighlightRead>())
10805 .map(|h| &h.1);
10806 let write_highlights = self
10807 .background_highlights
10808 .get(&TypeId::of::<DocumentHighlightWrite>())
10809 .map(|h| &h.1);
10810 let left_position = position.bias_left(buffer);
10811 let right_position = position.bias_right(buffer);
10812 read_highlights
10813 .into_iter()
10814 .chain(write_highlights)
10815 .flat_map(move |ranges| {
10816 let start_ix = match ranges.binary_search_by(|probe| {
10817 let cmp = probe.end.cmp(&left_position, buffer);
10818 if cmp.is_ge() {
10819 Ordering::Greater
10820 } else {
10821 Ordering::Less
10822 }
10823 }) {
10824 Ok(i) | Err(i) => i,
10825 };
10826
10827 ranges[start_ix..]
10828 .iter()
10829 .take_while(move |range| range.start.cmp(&right_position, buffer).is_le())
10830 })
10831 }
10832
10833 pub fn has_background_highlights<T: 'static>(&self) -> bool {
10834 self.background_highlights
10835 .get(&TypeId::of::<T>())
10836 .map_or(false, |(_, highlights)| !highlights.is_empty())
10837 }
10838
10839 pub fn background_highlights_in_range(
10840 &self,
10841 search_range: Range<Anchor>,
10842 display_snapshot: &DisplaySnapshot,
10843 theme: &ThemeColors,
10844 ) -> Vec<(Range<DisplayPoint>, Hsla)> {
10845 let mut results = Vec::new();
10846 for (color_fetcher, ranges) in self.background_highlights.values() {
10847 let color = color_fetcher(theme);
10848 let start_ix = match ranges.binary_search_by(|probe| {
10849 let cmp = probe
10850 .end
10851 .cmp(&search_range.start, &display_snapshot.buffer_snapshot);
10852 if cmp.is_gt() {
10853 Ordering::Greater
10854 } else {
10855 Ordering::Less
10856 }
10857 }) {
10858 Ok(i) | Err(i) => i,
10859 };
10860 for range in &ranges[start_ix..] {
10861 if range
10862 .start
10863 .cmp(&search_range.end, &display_snapshot.buffer_snapshot)
10864 .is_ge()
10865 {
10866 break;
10867 }
10868
10869 let start = range.start.to_display_point(&display_snapshot);
10870 let end = range.end.to_display_point(&display_snapshot);
10871 results.push((start..end, color))
10872 }
10873 }
10874 results
10875 }
10876
10877 pub fn background_highlight_row_ranges<T: 'static>(
10878 &self,
10879 search_range: Range<Anchor>,
10880 display_snapshot: &DisplaySnapshot,
10881 count: usize,
10882 ) -> Vec<RangeInclusive<DisplayPoint>> {
10883 let mut results = Vec::new();
10884 let Some((_, ranges)) = self.background_highlights.get(&TypeId::of::<T>()) else {
10885 return vec![];
10886 };
10887
10888 let start_ix = match ranges.binary_search_by(|probe| {
10889 let cmp = probe
10890 .end
10891 .cmp(&search_range.start, &display_snapshot.buffer_snapshot);
10892 if cmp.is_gt() {
10893 Ordering::Greater
10894 } else {
10895 Ordering::Less
10896 }
10897 }) {
10898 Ok(i) | Err(i) => i,
10899 };
10900 let mut push_region = |start: Option<Point>, end: Option<Point>| {
10901 if let (Some(start_display), Some(end_display)) = (start, end) {
10902 results.push(
10903 start_display.to_display_point(display_snapshot)
10904 ..=end_display.to_display_point(display_snapshot),
10905 );
10906 }
10907 };
10908 let mut start_row: Option<Point> = None;
10909 let mut end_row: Option<Point> = None;
10910 if ranges.len() > count {
10911 return Vec::new();
10912 }
10913 for range in &ranges[start_ix..] {
10914 if range
10915 .start
10916 .cmp(&search_range.end, &display_snapshot.buffer_snapshot)
10917 .is_ge()
10918 {
10919 break;
10920 }
10921 let end = range.end.to_point(&display_snapshot.buffer_snapshot);
10922 if let Some(current_row) = &end_row {
10923 if end.row == current_row.row {
10924 continue;
10925 }
10926 }
10927 let start = range.start.to_point(&display_snapshot.buffer_snapshot);
10928 if start_row.is_none() {
10929 assert_eq!(end_row, None);
10930 start_row = Some(start);
10931 end_row = Some(end);
10932 continue;
10933 }
10934 if let Some(current_end) = end_row.as_mut() {
10935 if start.row > current_end.row + 1 {
10936 push_region(start_row, end_row);
10937 start_row = Some(start);
10938 end_row = Some(end);
10939 } else {
10940 // Merge two hunks.
10941 *current_end = end;
10942 }
10943 } else {
10944 unreachable!();
10945 }
10946 }
10947 // We might still have a hunk that was not rendered (if there was a search hit on the last line)
10948 push_region(start_row, end_row);
10949 results
10950 }
10951
10952 pub fn gutter_highlights_in_range(
10953 &self,
10954 search_range: Range<Anchor>,
10955 display_snapshot: &DisplaySnapshot,
10956 cx: &AppContext,
10957 ) -> Vec<(Range<DisplayPoint>, Hsla)> {
10958 let mut results = Vec::new();
10959 for (color_fetcher, ranges) in self.gutter_highlights.values() {
10960 let color = color_fetcher(cx);
10961 let start_ix = match ranges.binary_search_by(|probe| {
10962 let cmp = probe
10963 .end
10964 .cmp(&search_range.start, &display_snapshot.buffer_snapshot);
10965 if cmp.is_gt() {
10966 Ordering::Greater
10967 } else {
10968 Ordering::Less
10969 }
10970 }) {
10971 Ok(i) | Err(i) => i,
10972 };
10973 for range in &ranges[start_ix..] {
10974 if range
10975 .start
10976 .cmp(&search_range.end, &display_snapshot.buffer_snapshot)
10977 .is_ge()
10978 {
10979 break;
10980 }
10981
10982 let start = range.start.to_display_point(&display_snapshot);
10983 let end = range.end.to_display_point(&display_snapshot);
10984 results.push((start..end, color))
10985 }
10986 }
10987 results
10988 }
10989
10990 /// Get the text ranges corresponding to the redaction query
10991 pub fn redacted_ranges(
10992 &self,
10993 search_range: Range<Anchor>,
10994 display_snapshot: &DisplaySnapshot,
10995 cx: &WindowContext,
10996 ) -> Vec<Range<DisplayPoint>> {
10997 display_snapshot
10998 .buffer_snapshot
10999 .redacted_ranges(search_range, |file| {
11000 if let Some(file) = file {
11001 file.is_private()
11002 && EditorSettings::get(Some(file.as_ref().into()), cx).redact_private_values
11003 } else {
11004 false
11005 }
11006 })
11007 .map(|range| {
11008 range.start.to_display_point(display_snapshot)
11009 ..range.end.to_display_point(display_snapshot)
11010 })
11011 .collect()
11012 }
11013
11014 pub fn highlight_text<T: 'static>(
11015 &mut self,
11016 ranges: Vec<Range<Anchor>>,
11017 style: HighlightStyle,
11018 cx: &mut ViewContext<Self>,
11019 ) {
11020 self.display_map.update(cx, |map, _| {
11021 map.highlight_text(TypeId::of::<T>(), ranges, style)
11022 });
11023 cx.notify();
11024 }
11025
11026 pub(crate) fn highlight_inlays<T: 'static>(
11027 &mut self,
11028 highlights: Vec<InlayHighlight>,
11029 style: HighlightStyle,
11030 cx: &mut ViewContext<Self>,
11031 ) {
11032 self.display_map.update(cx, |map, _| {
11033 map.highlight_inlays(TypeId::of::<T>(), highlights, style)
11034 });
11035 cx.notify();
11036 }
11037
11038 pub fn text_highlights<'a, T: 'static>(
11039 &'a self,
11040 cx: &'a AppContext,
11041 ) -> Option<(HighlightStyle, &'a [Range<Anchor>])> {
11042 self.display_map.read(cx).text_highlights(TypeId::of::<T>())
11043 }
11044
11045 pub fn clear_highlights<T: 'static>(&mut self, cx: &mut ViewContext<Self>) {
11046 let cleared = self
11047 .display_map
11048 .update(cx, |map, _| map.clear_highlights(TypeId::of::<T>()));
11049 if cleared {
11050 cx.notify();
11051 }
11052 }
11053
11054 pub fn show_local_cursors(&self, cx: &WindowContext) -> bool {
11055 (self.read_only(cx) || self.blink_manager.read(cx).visible())
11056 && self.focus_handle.is_focused(cx)
11057 }
11058
11059 pub fn set_show_cursor_when_unfocused(&mut self, is_enabled: bool, cx: &mut ViewContext<Self>) {
11060 self.show_cursor_when_unfocused = is_enabled;
11061 cx.notify();
11062 }
11063
11064 fn on_buffer_changed(&mut self, _: Model<MultiBuffer>, cx: &mut ViewContext<Self>) {
11065 cx.notify();
11066 }
11067
11068 fn on_buffer_event(
11069 &mut self,
11070 multibuffer: Model<MultiBuffer>,
11071 event: &multi_buffer::Event,
11072 cx: &mut ViewContext<Self>,
11073 ) {
11074 match event {
11075 multi_buffer::Event::Edited {
11076 singleton_buffer_edited,
11077 } => {
11078 self.scrollbar_marker_state.dirty = true;
11079 self.active_indent_guides_state.dirty = true;
11080 self.refresh_active_diagnostics(cx);
11081 self.refresh_code_actions(cx);
11082 if self.has_active_inline_completion(cx) {
11083 self.update_visible_inline_completion(cx);
11084 }
11085 cx.emit(EditorEvent::BufferEdited);
11086 cx.emit(SearchEvent::MatchesInvalidated);
11087 if *singleton_buffer_edited {
11088 if let Some(project) = &self.project {
11089 let project = project.read(cx);
11090 let languages_affected = multibuffer
11091 .read(cx)
11092 .all_buffers()
11093 .into_iter()
11094 .filter_map(|buffer| {
11095 let buffer = buffer.read(cx);
11096 let language = buffer.language()?;
11097 if project.is_local()
11098 && project.language_servers_for_buffer(buffer, cx).count() == 0
11099 {
11100 None
11101 } else {
11102 Some(language)
11103 }
11104 })
11105 .cloned()
11106 .collect::<HashSet<_>>();
11107 if !languages_affected.is_empty() {
11108 self.refresh_inlay_hints(
11109 InlayHintRefreshReason::BufferEdited(languages_affected),
11110 cx,
11111 );
11112 }
11113 }
11114 }
11115
11116 let Some(project) = &self.project else { return };
11117 let telemetry = project.read(cx).client().telemetry().clone();
11118 refresh_linked_ranges(self, cx);
11119 telemetry.log_edit_event("editor");
11120 }
11121 multi_buffer::Event::ExcerptsAdded {
11122 buffer,
11123 predecessor,
11124 excerpts,
11125 } => {
11126 self.tasks_update_task = Some(self.refresh_runnables(cx));
11127 cx.emit(EditorEvent::ExcerptsAdded {
11128 buffer: buffer.clone(),
11129 predecessor: *predecessor,
11130 excerpts: excerpts.clone(),
11131 });
11132 self.refresh_inlay_hints(InlayHintRefreshReason::NewLinesShown, cx);
11133 }
11134 multi_buffer::Event::ExcerptsRemoved { ids } => {
11135 self.refresh_inlay_hints(InlayHintRefreshReason::ExcerptsRemoved(ids.clone()), cx);
11136 cx.emit(EditorEvent::ExcerptsRemoved { ids: ids.clone() })
11137 }
11138 multi_buffer::Event::ExcerptsEdited { ids } => {
11139 cx.emit(EditorEvent::ExcerptsEdited { ids: ids.clone() })
11140 }
11141 multi_buffer::Event::ExcerptsExpanded { ids } => {
11142 cx.emit(EditorEvent::ExcerptsExpanded { ids: ids.clone() })
11143 }
11144 multi_buffer::Event::Reparsed(buffer_id) => {
11145 self.tasks_update_task = Some(self.refresh_runnables(cx));
11146
11147 cx.emit(EditorEvent::Reparsed(*buffer_id));
11148 }
11149 multi_buffer::Event::LanguageChanged(buffer_id) => {
11150 linked_editing_ranges::refresh_linked_ranges(self, cx);
11151 cx.emit(EditorEvent::Reparsed(*buffer_id));
11152 cx.notify();
11153 }
11154 multi_buffer::Event::DirtyChanged => cx.emit(EditorEvent::DirtyChanged),
11155 multi_buffer::Event::Saved => cx.emit(EditorEvent::Saved),
11156 multi_buffer::Event::FileHandleChanged | multi_buffer::Event::Reloaded => {
11157 cx.emit(EditorEvent::TitleChanged)
11158 }
11159 multi_buffer::Event::DiffBaseChanged => {
11160 self.scrollbar_marker_state.dirty = true;
11161 cx.emit(EditorEvent::DiffBaseChanged);
11162 cx.notify();
11163 }
11164 multi_buffer::Event::DiffUpdated { buffer } => {
11165 self.sync_expanded_diff_hunks(buffer.clone(), cx);
11166 cx.notify();
11167 }
11168 multi_buffer::Event::Closed => cx.emit(EditorEvent::Closed),
11169 multi_buffer::Event::DiagnosticsUpdated => {
11170 self.refresh_active_diagnostics(cx);
11171 self.scrollbar_marker_state.dirty = true;
11172 cx.notify();
11173 }
11174 _ => {}
11175 };
11176 }
11177
11178 fn on_display_map_changed(&mut self, _: Model<DisplayMap>, cx: &mut ViewContext<Self>) {
11179 cx.notify();
11180 }
11181
11182 fn settings_changed(&mut self, cx: &mut ViewContext<Self>) {
11183 self.tasks_update_task = Some(self.refresh_runnables(cx));
11184 self.refresh_inline_completion(true, cx);
11185 self.refresh_inlay_hints(
11186 InlayHintRefreshReason::SettingsChange(inlay_hint_settings(
11187 self.selections.newest_anchor().head(),
11188 &self.buffer.read(cx).snapshot(cx),
11189 cx,
11190 )),
11191 cx,
11192 );
11193 let editor_settings = EditorSettings::get_global(cx);
11194 self.scroll_manager.vertical_scroll_margin = editor_settings.vertical_scroll_margin;
11195 self.show_breadcrumbs = editor_settings.toolbar.breadcrumbs;
11196
11197 if self.mode == EditorMode::Full {
11198 let inline_blame_enabled = ProjectSettings::get_global(cx).git.inline_blame_enabled();
11199 if self.git_blame_inline_enabled != inline_blame_enabled {
11200 self.toggle_git_blame_inline_internal(false, cx);
11201 }
11202 }
11203
11204 cx.notify();
11205 }
11206
11207 pub fn set_searchable(&mut self, searchable: bool) {
11208 self.searchable = searchable;
11209 }
11210
11211 pub fn searchable(&self) -> bool {
11212 self.searchable
11213 }
11214
11215 fn open_excerpts_in_split(&mut self, _: &OpenExcerptsSplit, cx: &mut ViewContext<Self>) {
11216 self.open_excerpts_common(true, cx)
11217 }
11218
11219 fn open_excerpts(&mut self, _: &OpenExcerpts, cx: &mut ViewContext<Self>) {
11220 self.open_excerpts_common(false, cx)
11221 }
11222
11223 fn open_excerpts_common(&mut self, split: bool, cx: &mut ViewContext<Self>) {
11224 let buffer = self.buffer.read(cx);
11225 if buffer.is_singleton() {
11226 cx.propagate();
11227 return;
11228 }
11229
11230 let Some(workspace) = self.workspace() else {
11231 cx.propagate();
11232 return;
11233 };
11234
11235 let mut new_selections_by_buffer = HashMap::default();
11236 for selection in self.selections.all::<usize>(cx) {
11237 for (buffer, mut range, _) in
11238 buffer.range_to_buffer_ranges(selection.start..selection.end, cx)
11239 {
11240 if selection.reversed {
11241 mem::swap(&mut range.start, &mut range.end);
11242 }
11243 new_selections_by_buffer
11244 .entry(buffer)
11245 .or_insert(Vec::new())
11246 .push(range)
11247 }
11248 }
11249
11250 // We defer the pane interaction because we ourselves are a workspace item
11251 // and activating a new item causes the pane to call a method on us reentrantly,
11252 // which panics if we're on the stack.
11253 cx.window_context().defer(move |cx| {
11254 workspace.update(cx, |workspace, cx| {
11255 let pane = if split {
11256 workspace.adjacent_pane(cx)
11257 } else {
11258 workspace.active_pane().clone()
11259 };
11260
11261 for (buffer, ranges) in new_selections_by_buffer {
11262 let editor = workspace.open_project_item::<Self>(pane.clone(), buffer, cx);
11263 editor.update(cx, |editor, cx| {
11264 editor.change_selections(Some(Autoscroll::newest()), cx, |s| {
11265 s.select_ranges(ranges);
11266 });
11267 });
11268 }
11269 })
11270 });
11271 }
11272
11273 fn jump(
11274 &mut self,
11275 path: ProjectPath,
11276 position: Point,
11277 anchor: language::Anchor,
11278 offset_from_top: u32,
11279 cx: &mut ViewContext<Self>,
11280 ) {
11281 let workspace = self.workspace();
11282 cx.spawn(|_, mut cx| async move {
11283 let workspace = workspace.ok_or_else(|| anyhow!("cannot jump without workspace"))?;
11284 let editor = workspace.update(&mut cx, |workspace, cx| {
11285 // Reset the preview item id before opening the new item
11286 workspace.active_pane().update(cx, |pane, cx| {
11287 pane.set_preview_item_id(None, cx);
11288 });
11289 workspace.open_path_preview(path, None, true, true, cx)
11290 })?;
11291 let editor = editor
11292 .await?
11293 .downcast::<Editor>()
11294 .ok_or_else(|| anyhow!("opened item was not an editor"))?
11295 .downgrade();
11296 editor.update(&mut cx, |editor, cx| {
11297 let buffer = editor
11298 .buffer()
11299 .read(cx)
11300 .as_singleton()
11301 .ok_or_else(|| anyhow!("cannot jump in a multi-buffer"))?;
11302 let buffer = buffer.read(cx);
11303 let cursor = if buffer.can_resolve(&anchor) {
11304 language::ToPoint::to_point(&anchor, buffer)
11305 } else {
11306 buffer.clip_point(position, Bias::Left)
11307 };
11308
11309 let nav_history = editor.nav_history.take();
11310 editor.change_selections(
11311 Some(Autoscroll::top_relative(offset_from_top as usize)),
11312 cx,
11313 |s| {
11314 s.select_ranges([cursor..cursor]);
11315 },
11316 );
11317 editor.nav_history = nav_history;
11318
11319 anyhow::Ok(())
11320 })??;
11321
11322 anyhow::Ok(())
11323 })
11324 .detach_and_log_err(cx);
11325 }
11326
11327 fn marked_text_ranges(&self, cx: &AppContext) -> Option<Vec<Range<OffsetUtf16>>> {
11328 let snapshot = self.buffer.read(cx).read(cx);
11329 let (_, ranges) = self.text_highlights::<InputComposition>(cx)?;
11330 Some(
11331 ranges
11332 .iter()
11333 .map(move |range| {
11334 range.start.to_offset_utf16(&snapshot)..range.end.to_offset_utf16(&snapshot)
11335 })
11336 .collect(),
11337 )
11338 }
11339
11340 fn selection_replacement_ranges(
11341 &self,
11342 range: Range<OffsetUtf16>,
11343 cx: &AppContext,
11344 ) -> Vec<Range<OffsetUtf16>> {
11345 let selections = self.selections.all::<OffsetUtf16>(cx);
11346 let newest_selection = selections
11347 .iter()
11348 .max_by_key(|selection| selection.id)
11349 .unwrap();
11350 let start_delta = range.start.0 as isize - newest_selection.start.0 as isize;
11351 let end_delta = range.end.0 as isize - newest_selection.end.0 as isize;
11352 let snapshot = self.buffer.read(cx).read(cx);
11353 selections
11354 .into_iter()
11355 .map(|mut selection| {
11356 selection.start.0 =
11357 (selection.start.0 as isize).saturating_add(start_delta) as usize;
11358 selection.end.0 = (selection.end.0 as isize).saturating_add(end_delta) as usize;
11359 snapshot.clip_offset_utf16(selection.start, Bias::Left)
11360 ..snapshot.clip_offset_utf16(selection.end, Bias::Right)
11361 })
11362 .collect()
11363 }
11364
11365 fn report_editor_event(
11366 &self,
11367 operation: &'static str,
11368 file_extension: Option<String>,
11369 cx: &AppContext,
11370 ) {
11371 if cfg!(any(test, feature = "test-support")) {
11372 return;
11373 }
11374
11375 let Some(project) = &self.project else { return };
11376
11377 // If None, we are in a file without an extension
11378 let file = self
11379 .buffer
11380 .read(cx)
11381 .as_singleton()
11382 .and_then(|b| b.read(cx).file());
11383 let file_extension = file_extension.or(file
11384 .as_ref()
11385 .and_then(|file| Path::new(file.file_name(cx)).extension())
11386 .and_then(|e| e.to_str())
11387 .map(|a| a.to_string()));
11388
11389 let vim_mode = cx
11390 .global::<SettingsStore>()
11391 .raw_user_settings()
11392 .get("vim_mode")
11393 == Some(&serde_json::Value::Bool(true));
11394
11395 let copilot_enabled = all_language_settings(file, cx).inline_completions.provider
11396 == language::language_settings::InlineCompletionProvider::Copilot;
11397 let copilot_enabled_for_language = self
11398 .buffer
11399 .read(cx)
11400 .settings_at(0, cx)
11401 .show_inline_completions;
11402
11403 let telemetry = project.read(cx).client().telemetry().clone();
11404 telemetry.report_editor_event(
11405 file_extension,
11406 vim_mode,
11407 operation,
11408 copilot_enabled,
11409 copilot_enabled_for_language,
11410 )
11411 }
11412
11413 /// Copy the highlighted chunks to the clipboard as JSON. The format is an array of lines,
11414 /// with each line being an array of {text, highlight} objects.
11415 fn copy_highlight_json(&mut self, _: &CopyHighlightJson, cx: &mut ViewContext<Self>) {
11416 let Some(buffer) = self.buffer.read(cx).as_singleton() else {
11417 return;
11418 };
11419
11420 #[derive(Serialize)]
11421 struct Chunk<'a> {
11422 text: String,
11423 highlight: Option<&'a str>,
11424 }
11425
11426 let snapshot = buffer.read(cx).snapshot();
11427 let range = self
11428 .selected_text_range(cx)
11429 .and_then(|selected_range| {
11430 if selected_range.is_empty() {
11431 None
11432 } else {
11433 Some(selected_range)
11434 }
11435 })
11436 .unwrap_or_else(|| 0..snapshot.len());
11437
11438 let chunks = snapshot.chunks(range, true);
11439 let mut lines = Vec::new();
11440 let mut line: VecDeque<Chunk> = VecDeque::new();
11441
11442 let Some(style) = self.style.as_ref() else {
11443 return;
11444 };
11445
11446 for chunk in chunks {
11447 let highlight = chunk
11448 .syntax_highlight_id
11449 .and_then(|id| id.name(&style.syntax));
11450 let mut chunk_lines = chunk.text.split('\n').peekable();
11451 while let Some(text) = chunk_lines.next() {
11452 let mut merged_with_last_token = false;
11453 if let Some(last_token) = line.back_mut() {
11454 if last_token.highlight == highlight {
11455 last_token.text.push_str(text);
11456 merged_with_last_token = true;
11457 }
11458 }
11459
11460 if !merged_with_last_token {
11461 line.push_back(Chunk {
11462 text: text.into(),
11463 highlight,
11464 });
11465 }
11466
11467 if chunk_lines.peek().is_some() {
11468 if line.len() > 1 && line.front().unwrap().text.is_empty() {
11469 line.pop_front();
11470 }
11471 if line.len() > 1 && line.back().unwrap().text.is_empty() {
11472 line.pop_back();
11473 }
11474
11475 lines.push(mem::take(&mut line));
11476 }
11477 }
11478 }
11479
11480 let Some(lines) = serde_json::to_string_pretty(&lines).log_err() else {
11481 return;
11482 };
11483 cx.write_to_clipboard(ClipboardItem::new(lines));
11484 }
11485
11486 pub fn inlay_hint_cache(&self) -> &InlayHintCache {
11487 &self.inlay_hint_cache
11488 }
11489
11490 pub fn replay_insert_event(
11491 &mut self,
11492 text: &str,
11493 relative_utf16_range: Option<Range<isize>>,
11494 cx: &mut ViewContext<Self>,
11495 ) {
11496 if !self.input_enabled {
11497 cx.emit(EditorEvent::InputIgnored { text: text.into() });
11498 return;
11499 }
11500 if let Some(relative_utf16_range) = relative_utf16_range {
11501 let selections = self.selections.all::<OffsetUtf16>(cx);
11502 self.change_selections(None, cx, |s| {
11503 let new_ranges = selections.into_iter().map(|range| {
11504 let start = OffsetUtf16(
11505 range
11506 .head()
11507 .0
11508 .saturating_add_signed(relative_utf16_range.start),
11509 );
11510 let end = OffsetUtf16(
11511 range
11512 .head()
11513 .0
11514 .saturating_add_signed(relative_utf16_range.end),
11515 );
11516 start..end
11517 });
11518 s.select_ranges(new_ranges);
11519 });
11520 }
11521
11522 self.handle_input(text, cx);
11523 }
11524
11525 pub fn supports_inlay_hints(&self, cx: &AppContext) -> bool {
11526 let Some(project) = self.project.as_ref() else {
11527 return false;
11528 };
11529 let project = project.read(cx);
11530
11531 let mut supports = false;
11532 self.buffer().read(cx).for_each_buffer(|buffer| {
11533 if !supports {
11534 supports = project
11535 .language_servers_for_buffer(buffer.read(cx), cx)
11536 .any(
11537 |(_, server)| match server.capabilities().inlay_hint_provider {
11538 Some(lsp::OneOf::Left(enabled)) => enabled,
11539 Some(lsp::OneOf::Right(_)) => true,
11540 None => false,
11541 },
11542 )
11543 }
11544 });
11545 supports
11546 }
11547
11548 pub fn focus(&self, cx: &mut WindowContext) {
11549 cx.focus(&self.focus_handle)
11550 }
11551
11552 pub fn is_focused(&self, cx: &WindowContext) -> bool {
11553 self.focus_handle.is_focused(cx)
11554 }
11555
11556 fn handle_focus(&mut self, cx: &mut ViewContext<Self>) {
11557 cx.emit(EditorEvent::Focused);
11558
11559 if let Some(descendant) = self
11560 .last_focused_descendant
11561 .take()
11562 .and_then(|descendant| descendant.upgrade())
11563 {
11564 cx.focus(&descendant);
11565 } else {
11566 if let Some(blame) = self.blame.as_ref() {
11567 blame.update(cx, GitBlame::focus)
11568 }
11569
11570 self.blink_manager.update(cx, BlinkManager::enable);
11571 self.show_cursor_names(cx);
11572 self.buffer.update(cx, |buffer, cx| {
11573 buffer.finalize_last_transaction(cx);
11574 if self.leader_peer_id.is_none() {
11575 buffer.set_active_selections(
11576 &self.selections.disjoint_anchors(),
11577 self.selections.line_mode,
11578 self.cursor_shape,
11579 cx,
11580 );
11581 }
11582 });
11583 }
11584 }
11585
11586 fn handle_focus_out(&mut self, event: FocusOutEvent, _cx: &mut ViewContext<Self>) {
11587 if event.blurred != self.focus_handle {
11588 self.last_focused_descendant = Some(event.blurred);
11589 }
11590 }
11591
11592 pub fn handle_blur(&mut self, cx: &mut ViewContext<Self>) {
11593 self.blink_manager.update(cx, BlinkManager::disable);
11594 self.buffer
11595 .update(cx, |buffer, cx| buffer.remove_active_selections(cx));
11596
11597 if let Some(blame) = self.blame.as_ref() {
11598 blame.update(cx, GitBlame::blur)
11599 }
11600 self.hide_context_menu(cx);
11601 hide_hover(self, cx);
11602 cx.emit(EditorEvent::Blurred);
11603 cx.notify();
11604 }
11605
11606 pub fn register_action<A: Action>(
11607 &mut self,
11608 listener: impl Fn(&A, &mut WindowContext) + 'static,
11609 ) -> Subscription {
11610 let id = self.next_editor_action_id.post_inc();
11611 let listener = Arc::new(listener);
11612 self.editor_actions.borrow_mut().insert(
11613 id,
11614 Box::new(move |cx| {
11615 let _view = cx.view().clone();
11616 let cx = cx.window_context();
11617 let listener = listener.clone();
11618 cx.on_action(TypeId::of::<A>(), move |action, phase, cx| {
11619 let action = action.downcast_ref().unwrap();
11620 if phase == DispatchPhase::Bubble {
11621 listener(action, cx)
11622 }
11623 })
11624 }),
11625 );
11626
11627 let editor_actions = self.editor_actions.clone();
11628 Subscription::new(move || {
11629 editor_actions.borrow_mut().remove(&id);
11630 })
11631 }
11632
11633 pub fn file_header_size(&self) -> u8 {
11634 self.file_header_size
11635 }
11636}
11637
11638fn hunks_for_selections(
11639 multi_buffer_snapshot: &MultiBufferSnapshot,
11640 selections: &[Selection<Anchor>],
11641) -> Vec<DiffHunk<MultiBufferRow>> {
11642 let mut hunks = Vec::with_capacity(selections.len());
11643 let mut processed_buffer_rows: HashMap<BufferId, HashSet<Range<text::Anchor>>> =
11644 HashMap::default();
11645 let buffer_rows_for_selections = selections.iter().map(|selection| {
11646 let head = selection.head();
11647 let tail = selection.tail();
11648 let start = MultiBufferRow(tail.to_point(&multi_buffer_snapshot).row);
11649 let end = MultiBufferRow(head.to_point(&multi_buffer_snapshot).row);
11650 if start > end {
11651 end..start
11652 } else {
11653 start..end
11654 }
11655 });
11656
11657 for selected_multi_buffer_rows in buffer_rows_for_selections {
11658 let query_rows =
11659 selected_multi_buffer_rows.start..selected_multi_buffer_rows.end.next_row();
11660 for hunk in multi_buffer_snapshot.git_diff_hunks_in_range(query_rows.clone()) {
11661 // Deleted hunk is an empty row range, no caret can be placed there and Zed allows to revert it
11662 // when the caret is just above or just below the deleted hunk.
11663 let allow_adjacent = hunk_status(&hunk) == DiffHunkStatus::Removed;
11664 let related_to_selection = if allow_adjacent {
11665 hunk.associated_range.overlaps(&query_rows)
11666 || hunk.associated_range.start == query_rows.end
11667 || hunk.associated_range.end == query_rows.start
11668 } else {
11669 // `selected_multi_buffer_rows` are inclusive (e.g. [2..2] means 2nd row is selected)
11670 // `hunk.associated_range` is exclusive (e.g. [2..3] means 2nd row is selected)
11671 hunk.associated_range.overlaps(&selected_multi_buffer_rows)
11672 || selected_multi_buffer_rows.end == hunk.associated_range.start
11673 };
11674 if related_to_selection {
11675 if !processed_buffer_rows
11676 .entry(hunk.buffer_id)
11677 .or_default()
11678 .insert(hunk.buffer_range.start..hunk.buffer_range.end)
11679 {
11680 continue;
11681 }
11682 hunks.push(hunk);
11683 }
11684 }
11685 }
11686
11687 hunks
11688}
11689
11690pub trait CollaborationHub {
11691 fn collaborators<'a>(&self, cx: &'a AppContext) -> &'a HashMap<PeerId, Collaborator>;
11692 fn user_participant_indices<'a>(
11693 &self,
11694 cx: &'a AppContext,
11695 ) -> &'a HashMap<u64, ParticipantIndex>;
11696 fn user_names(&self, cx: &AppContext) -> HashMap<u64, SharedString>;
11697}
11698
11699impl CollaborationHub for Model<Project> {
11700 fn collaborators<'a>(&self, cx: &'a AppContext) -> &'a HashMap<PeerId, Collaborator> {
11701 self.read(cx).collaborators()
11702 }
11703
11704 fn user_participant_indices<'a>(
11705 &self,
11706 cx: &'a AppContext,
11707 ) -> &'a HashMap<u64, ParticipantIndex> {
11708 self.read(cx).user_store().read(cx).participant_indices()
11709 }
11710
11711 fn user_names(&self, cx: &AppContext) -> HashMap<u64, SharedString> {
11712 let this = self.read(cx);
11713 let user_ids = this.collaborators().values().map(|c| c.user_id);
11714 this.user_store().read_with(cx, |user_store, cx| {
11715 user_store.participant_names(user_ids, cx)
11716 })
11717 }
11718}
11719
11720pub trait CompletionProvider {
11721 fn completions(
11722 &self,
11723 buffer: &Model<Buffer>,
11724 buffer_position: text::Anchor,
11725 trigger: CompletionContext,
11726 cx: &mut ViewContext<Editor>,
11727 ) -> Task<Result<Vec<Completion>>>;
11728
11729 fn resolve_completions(
11730 &self,
11731 buffer: Model<Buffer>,
11732 completion_indices: Vec<usize>,
11733 completions: Arc<RwLock<Box<[Completion]>>>,
11734 cx: &mut ViewContext<Editor>,
11735 ) -> Task<Result<bool>>;
11736
11737 fn apply_additional_edits_for_completion(
11738 &self,
11739 buffer: Model<Buffer>,
11740 completion: Completion,
11741 push_to_history: bool,
11742 cx: &mut ViewContext<Editor>,
11743 ) -> Task<Result<Option<language::Transaction>>>;
11744
11745 fn is_completion_trigger(
11746 &self,
11747 buffer: &Model<Buffer>,
11748 position: language::Anchor,
11749 text: &str,
11750 trigger_in_words: bool,
11751 cx: &mut ViewContext<Editor>,
11752 ) -> bool;
11753}
11754
11755impl CompletionProvider for Model<Project> {
11756 fn completions(
11757 &self,
11758 buffer: &Model<Buffer>,
11759 buffer_position: text::Anchor,
11760 options: CompletionContext,
11761 cx: &mut ViewContext<Editor>,
11762 ) -> Task<Result<Vec<Completion>>> {
11763 self.update(cx, |project, cx| {
11764 project.completions(&buffer, buffer_position, options, cx)
11765 })
11766 }
11767
11768 fn resolve_completions(
11769 &self,
11770 buffer: Model<Buffer>,
11771 completion_indices: Vec<usize>,
11772 completions: Arc<RwLock<Box<[Completion]>>>,
11773 cx: &mut ViewContext<Editor>,
11774 ) -> Task<Result<bool>> {
11775 self.update(cx, |project, cx| {
11776 project.resolve_completions(buffer, completion_indices, completions, cx)
11777 })
11778 }
11779
11780 fn apply_additional_edits_for_completion(
11781 &self,
11782 buffer: Model<Buffer>,
11783 completion: Completion,
11784 push_to_history: bool,
11785 cx: &mut ViewContext<Editor>,
11786 ) -> Task<Result<Option<language::Transaction>>> {
11787 self.update(cx, |project, cx| {
11788 project.apply_additional_edits_for_completion(buffer, completion, push_to_history, cx)
11789 })
11790 }
11791
11792 fn is_completion_trigger(
11793 &self,
11794 buffer: &Model<Buffer>,
11795 position: language::Anchor,
11796 text: &str,
11797 trigger_in_words: bool,
11798 cx: &mut ViewContext<Editor>,
11799 ) -> bool {
11800 if !EditorSettings::get_global(cx).show_completions_on_input {
11801 return false;
11802 }
11803
11804 let mut chars = text.chars();
11805 let char = if let Some(char) = chars.next() {
11806 char
11807 } else {
11808 return false;
11809 };
11810 if chars.next().is_some() {
11811 return false;
11812 }
11813
11814 let buffer = buffer.read(cx);
11815 let scope = buffer.snapshot().language_scope_at(position);
11816 if trigger_in_words && char_kind(&scope, char) == CharKind::Word {
11817 return true;
11818 }
11819
11820 buffer
11821 .completion_triggers()
11822 .iter()
11823 .any(|string| string == text)
11824 }
11825}
11826
11827fn inlay_hint_settings(
11828 location: Anchor,
11829 snapshot: &MultiBufferSnapshot,
11830 cx: &mut ViewContext<'_, Editor>,
11831) -> InlayHintSettings {
11832 let file = snapshot.file_at(location);
11833 let language = snapshot.language_at(location);
11834 let settings = all_language_settings(file, cx);
11835 settings
11836 .language(language.map(|l| l.name()).as_deref())
11837 .inlay_hints
11838}
11839
11840fn consume_contiguous_rows(
11841 contiguous_row_selections: &mut Vec<Selection<Point>>,
11842 selection: &Selection<Point>,
11843 display_map: &DisplaySnapshot,
11844 selections: &mut std::iter::Peekable<std::slice::Iter<Selection<Point>>>,
11845) -> (MultiBufferRow, MultiBufferRow) {
11846 contiguous_row_selections.push(selection.clone());
11847 let start_row = MultiBufferRow(selection.start.row);
11848 let mut end_row = ending_row(selection, display_map);
11849
11850 while let Some(next_selection) = selections.peek() {
11851 if next_selection.start.row <= end_row.0 {
11852 end_row = ending_row(next_selection, display_map);
11853 contiguous_row_selections.push(selections.next().unwrap().clone());
11854 } else {
11855 break;
11856 }
11857 }
11858 (start_row, end_row)
11859}
11860
11861fn ending_row(next_selection: &Selection<Point>, display_map: &DisplaySnapshot) -> MultiBufferRow {
11862 if next_selection.end.column > 0 || next_selection.is_empty() {
11863 MultiBufferRow(display_map.next_line_boundary(next_selection.end).0.row + 1)
11864 } else {
11865 MultiBufferRow(next_selection.end.row)
11866 }
11867}
11868
11869impl EditorSnapshot {
11870 pub fn remote_selections_in_range<'a>(
11871 &'a self,
11872 range: &'a Range<Anchor>,
11873 collaboration_hub: &dyn CollaborationHub,
11874 cx: &'a AppContext,
11875 ) -> impl 'a + Iterator<Item = RemoteSelection> {
11876 let participant_names = collaboration_hub.user_names(cx);
11877 let participant_indices = collaboration_hub.user_participant_indices(cx);
11878 let collaborators_by_peer_id = collaboration_hub.collaborators(cx);
11879 let collaborators_by_replica_id = collaborators_by_peer_id
11880 .iter()
11881 .map(|(_, collaborator)| (collaborator.replica_id, collaborator))
11882 .collect::<HashMap<_, _>>();
11883 self.buffer_snapshot
11884 .selections_in_range(range, false)
11885 .filter_map(move |(replica_id, line_mode, cursor_shape, selection)| {
11886 let collaborator = collaborators_by_replica_id.get(&replica_id)?;
11887 let participant_index = participant_indices.get(&collaborator.user_id).copied();
11888 let user_name = participant_names.get(&collaborator.user_id).cloned();
11889 Some(RemoteSelection {
11890 replica_id,
11891 selection,
11892 cursor_shape,
11893 line_mode,
11894 participant_index,
11895 peer_id: collaborator.peer_id,
11896 user_name,
11897 })
11898 })
11899 }
11900
11901 pub fn language_at<T: ToOffset>(&self, position: T) -> Option<&Arc<Language>> {
11902 self.display_snapshot.buffer_snapshot.language_at(position)
11903 }
11904
11905 pub fn is_focused(&self) -> bool {
11906 self.is_focused
11907 }
11908
11909 pub fn placeholder_text(&self) -> Option<&Arc<str>> {
11910 self.placeholder_text.as_ref()
11911 }
11912
11913 pub fn scroll_position(&self) -> gpui::Point<f32> {
11914 self.scroll_anchor.scroll_position(&self.display_snapshot)
11915 }
11916
11917 pub fn gutter_dimensions(
11918 &self,
11919 font_id: FontId,
11920 font_size: Pixels,
11921 em_width: Pixels,
11922 max_line_number_width: Pixels,
11923 cx: &AppContext,
11924 ) -> GutterDimensions {
11925 if !self.show_gutter {
11926 return GutterDimensions::default();
11927 }
11928 let descent = cx.text_system().descent(font_id, font_size);
11929
11930 let show_git_gutter = self.show_git_diff_gutter.unwrap_or_else(|| {
11931 matches!(
11932 ProjectSettings::get_global(cx).git.git_gutter,
11933 Some(GitGutterSetting::TrackedFiles)
11934 )
11935 });
11936 let gutter_settings = EditorSettings::get_global(cx).gutter;
11937 let show_line_numbers = self
11938 .show_line_numbers
11939 .unwrap_or(gutter_settings.line_numbers);
11940 let line_gutter_width = if show_line_numbers {
11941 // Avoid flicker-like gutter resizes when the line number gains another digit and only resize the gutter on files with N*10^5 lines.
11942 let min_width_for_number_on_gutter = em_width * 4.0;
11943 max_line_number_width.max(min_width_for_number_on_gutter)
11944 } else {
11945 0.0.into()
11946 };
11947
11948 let show_code_actions = self
11949 .show_code_actions
11950 .unwrap_or(gutter_settings.code_actions);
11951
11952 let show_runnables = self.show_runnables.unwrap_or(gutter_settings.runnables);
11953
11954 let git_blame_entries_width = self
11955 .render_git_blame_gutter
11956 .then_some(em_width * GIT_BLAME_GUTTER_WIDTH_CHARS);
11957
11958 let mut left_padding = git_blame_entries_width.unwrap_or(Pixels::ZERO);
11959 left_padding += if show_code_actions || show_runnables {
11960 em_width * 3.0
11961 } else if show_git_gutter && show_line_numbers {
11962 em_width * 2.0
11963 } else if show_git_gutter || show_line_numbers {
11964 em_width
11965 } else {
11966 px(0.)
11967 };
11968
11969 let right_padding = if gutter_settings.folds && show_line_numbers {
11970 em_width * 4.0
11971 } else if gutter_settings.folds {
11972 em_width * 3.0
11973 } else if show_line_numbers {
11974 em_width
11975 } else {
11976 px(0.)
11977 };
11978
11979 GutterDimensions {
11980 left_padding,
11981 right_padding,
11982 width: line_gutter_width + left_padding + right_padding,
11983 margin: -descent,
11984 git_blame_entries_width,
11985 }
11986 }
11987
11988 pub fn render_fold_toggle(
11989 &self,
11990 buffer_row: MultiBufferRow,
11991 row_contains_cursor: bool,
11992 editor: View<Editor>,
11993 cx: &mut WindowContext,
11994 ) -> Option<AnyElement> {
11995 let folded = self.is_line_folded(buffer_row);
11996
11997 if let Some(crease) = self
11998 .crease_snapshot
11999 .query_row(buffer_row, &self.buffer_snapshot)
12000 {
12001 let toggle_callback = Arc::new(move |folded, cx: &mut WindowContext| {
12002 if folded {
12003 editor.update(cx, |editor, cx| {
12004 editor.fold_at(&crate::FoldAt { buffer_row }, cx)
12005 });
12006 } else {
12007 editor.update(cx, |editor, cx| {
12008 editor.unfold_at(&crate::UnfoldAt { buffer_row }, cx)
12009 });
12010 }
12011 });
12012
12013 Some((crease.render_toggle)(
12014 buffer_row,
12015 folded,
12016 toggle_callback,
12017 cx,
12018 ))
12019 } else if folded
12020 || (self.starts_indent(buffer_row) && (row_contains_cursor || self.gutter_hovered))
12021 {
12022 Some(
12023 Disclosure::new(("indent-fold-indicator", buffer_row.0), !folded)
12024 .selected(folded)
12025 .on_click(cx.listener_for(&editor, move |this, _e, cx| {
12026 if folded {
12027 this.unfold_at(&UnfoldAt { buffer_row }, cx);
12028 } else {
12029 this.fold_at(&FoldAt { buffer_row }, cx);
12030 }
12031 }))
12032 .into_any_element(),
12033 )
12034 } else {
12035 None
12036 }
12037 }
12038
12039 pub fn render_crease_trailer(
12040 &self,
12041 buffer_row: MultiBufferRow,
12042 cx: &mut WindowContext,
12043 ) -> Option<AnyElement> {
12044 let folded = self.is_line_folded(buffer_row);
12045 let crease = self
12046 .crease_snapshot
12047 .query_row(buffer_row, &self.buffer_snapshot)?;
12048 Some((crease.render_trailer)(buffer_row, folded, cx))
12049 }
12050}
12051
12052impl Deref for EditorSnapshot {
12053 type Target = DisplaySnapshot;
12054
12055 fn deref(&self) -> &Self::Target {
12056 &self.display_snapshot
12057 }
12058}
12059
12060#[derive(Clone, Debug, PartialEq, Eq)]
12061pub enum EditorEvent {
12062 InputIgnored {
12063 text: Arc<str>,
12064 },
12065 InputHandled {
12066 utf16_range_to_replace: Option<Range<isize>>,
12067 text: Arc<str>,
12068 },
12069 ExcerptsAdded {
12070 buffer: Model<Buffer>,
12071 predecessor: ExcerptId,
12072 excerpts: Vec<(ExcerptId, ExcerptRange<language::Anchor>)>,
12073 },
12074 ExcerptsRemoved {
12075 ids: Vec<ExcerptId>,
12076 },
12077 ExcerptsEdited {
12078 ids: Vec<ExcerptId>,
12079 },
12080 ExcerptsExpanded {
12081 ids: Vec<ExcerptId>,
12082 },
12083 BufferEdited,
12084 Edited {
12085 transaction_id: clock::Lamport,
12086 },
12087 Reparsed(BufferId),
12088 Focused,
12089 Blurred,
12090 DirtyChanged,
12091 Saved,
12092 TitleChanged,
12093 DiffBaseChanged,
12094 SelectionsChanged {
12095 local: bool,
12096 },
12097 ScrollPositionChanged {
12098 local: bool,
12099 autoscroll: bool,
12100 },
12101 Closed,
12102 TransactionUndone {
12103 transaction_id: clock::Lamport,
12104 },
12105 TransactionBegun {
12106 transaction_id: clock::Lamport,
12107 },
12108}
12109
12110impl EventEmitter<EditorEvent> for Editor {}
12111
12112impl FocusableView for Editor {
12113 fn focus_handle(&self, _cx: &AppContext) -> FocusHandle {
12114 self.focus_handle.clone()
12115 }
12116}
12117
12118impl Render for Editor {
12119 fn render<'a>(&mut self, cx: &mut ViewContext<'a, Self>) -> impl IntoElement {
12120 let settings = ThemeSettings::get_global(cx);
12121
12122 let text_style = match self.mode {
12123 EditorMode::SingleLine { .. } | EditorMode::AutoHeight { .. } => TextStyle {
12124 color: cx.theme().colors().editor_foreground,
12125 font_family: settings.ui_font.family.clone(),
12126 font_features: settings.ui_font.features.clone(),
12127 font_size: rems(0.875).into(),
12128 font_weight: settings.ui_font.weight,
12129 font_style: FontStyle::Normal,
12130 line_height: relative(settings.buffer_line_height.value()),
12131 background_color: None,
12132 underline: None,
12133 strikethrough: None,
12134 white_space: WhiteSpace::Normal,
12135 },
12136 EditorMode::Full => TextStyle {
12137 color: cx.theme().colors().editor_foreground,
12138 font_family: settings.buffer_font.family.clone(),
12139 font_features: settings.buffer_font.features.clone(),
12140 font_size: settings.buffer_font_size(cx).into(),
12141 font_weight: settings.buffer_font.weight,
12142 font_style: FontStyle::Normal,
12143 line_height: relative(settings.buffer_line_height.value()),
12144 background_color: None,
12145 underline: None,
12146 strikethrough: None,
12147 white_space: WhiteSpace::Normal,
12148 },
12149 };
12150
12151 let background = match self.mode {
12152 EditorMode::SingleLine { .. } => cx.theme().system().transparent,
12153 EditorMode::AutoHeight { max_lines: _ } => cx.theme().system().transparent,
12154 EditorMode::Full => cx.theme().colors().editor_background,
12155 };
12156
12157 EditorElement::new(
12158 cx.view(),
12159 EditorStyle {
12160 background,
12161 local_player: cx.theme().players().local(),
12162 text: text_style,
12163 scrollbar_width: EditorElement::SCROLLBAR_WIDTH,
12164 syntax: cx.theme().syntax().clone(),
12165 status: cx.theme().status().clone(),
12166 inlay_hints_style: HighlightStyle {
12167 color: Some(cx.theme().status().hint),
12168 ..HighlightStyle::default()
12169 },
12170 suggestions_style: HighlightStyle {
12171 color: Some(cx.theme().status().predictive),
12172 ..HighlightStyle::default()
12173 },
12174 },
12175 )
12176 }
12177}
12178
12179impl ViewInputHandler for Editor {
12180 fn text_for_range(
12181 &mut self,
12182 range_utf16: Range<usize>,
12183 cx: &mut ViewContext<Self>,
12184 ) -> Option<String> {
12185 Some(
12186 self.buffer
12187 .read(cx)
12188 .read(cx)
12189 .text_for_range(OffsetUtf16(range_utf16.start)..OffsetUtf16(range_utf16.end))
12190 .collect(),
12191 )
12192 }
12193
12194 fn selected_text_range(&mut self, cx: &mut ViewContext<Self>) -> Option<Range<usize>> {
12195 // Prevent the IME menu from appearing when holding down an alphabetic key
12196 // while input is disabled.
12197 if !self.input_enabled {
12198 return None;
12199 }
12200
12201 let range = self.selections.newest::<OffsetUtf16>(cx).range();
12202 Some(range.start.0..range.end.0)
12203 }
12204
12205 fn marked_text_range(&self, cx: &mut ViewContext<Self>) -> Option<Range<usize>> {
12206 let snapshot = self.buffer.read(cx).read(cx);
12207 let range = self.text_highlights::<InputComposition>(cx)?.1.get(0)?;
12208 Some(range.start.to_offset_utf16(&snapshot).0..range.end.to_offset_utf16(&snapshot).0)
12209 }
12210
12211 fn unmark_text(&mut self, cx: &mut ViewContext<Self>) {
12212 self.clear_highlights::<InputComposition>(cx);
12213 self.ime_transaction.take();
12214 }
12215
12216 fn replace_text_in_range(
12217 &mut self,
12218 range_utf16: Option<Range<usize>>,
12219 text: &str,
12220 cx: &mut ViewContext<Self>,
12221 ) {
12222 if !self.input_enabled {
12223 cx.emit(EditorEvent::InputIgnored { text: text.into() });
12224 return;
12225 }
12226
12227 self.transact(cx, |this, cx| {
12228 let new_selected_ranges = if let Some(range_utf16) = range_utf16 {
12229 let range_utf16 = OffsetUtf16(range_utf16.start)..OffsetUtf16(range_utf16.end);
12230 Some(this.selection_replacement_ranges(range_utf16, cx))
12231 } else {
12232 this.marked_text_ranges(cx)
12233 };
12234
12235 let range_to_replace = new_selected_ranges.as_ref().and_then(|ranges_to_replace| {
12236 let newest_selection_id = this.selections.newest_anchor().id;
12237 this.selections
12238 .all::<OffsetUtf16>(cx)
12239 .iter()
12240 .zip(ranges_to_replace.iter())
12241 .find_map(|(selection, range)| {
12242 if selection.id == newest_selection_id {
12243 Some(
12244 (range.start.0 as isize - selection.head().0 as isize)
12245 ..(range.end.0 as isize - selection.head().0 as isize),
12246 )
12247 } else {
12248 None
12249 }
12250 })
12251 });
12252
12253 cx.emit(EditorEvent::InputHandled {
12254 utf16_range_to_replace: range_to_replace,
12255 text: text.into(),
12256 });
12257
12258 if let Some(new_selected_ranges) = new_selected_ranges {
12259 this.change_selections(None, cx, |selections| {
12260 selections.select_ranges(new_selected_ranges)
12261 });
12262 this.backspace(&Default::default(), cx);
12263 }
12264
12265 this.handle_input(text, cx);
12266 });
12267
12268 if let Some(transaction) = self.ime_transaction {
12269 self.buffer.update(cx, |buffer, cx| {
12270 buffer.group_until_transaction(transaction, cx);
12271 });
12272 }
12273
12274 self.unmark_text(cx);
12275 }
12276
12277 fn replace_and_mark_text_in_range(
12278 &mut self,
12279 range_utf16: Option<Range<usize>>,
12280 text: &str,
12281 new_selected_range_utf16: Option<Range<usize>>,
12282 cx: &mut ViewContext<Self>,
12283 ) {
12284 if !self.input_enabled {
12285 return;
12286 }
12287
12288 let transaction = self.transact(cx, |this, cx| {
12289 let ranges_to_replace = if let Some(mut marked_ranges) = this.marked_text_ranges(cx) {
12290 let snapshot = this.buffer.read(cx).read(cx);
12291 if let Some(relative_range_utf16) = range_utf16.as_ref() {
12292 for marked_range in &mut marked_ranges {
12293 marked_range.end.0 = marked_range.start.0 + relative_range_utf16.end;
12294 marked_range.start.0 += relative_range_utf16.start;
12295 marked_range.start =
12296 snapshot.clip_offset_utf16(marked_range.start, Bias::Left);
12297 marked_range.end =
12298 snapshot.clip_offset_utf16(marked_range.end, Bias::Right);
12299 }
12300 }
12301 Some(marked_ranges)
12302 } else if let Some(range_utf16) = range_utf16 {
12303 let range_utf16 = OffsetUtf16(range_utf16.start)..OffsetUtf16(range_utf16.end);
12304 Some(this.selection_replacement_ranges(range_utf16, cx))
12305 } else {
12306 None
12307 };
12308
12309 let range_to_replace = ranges_to_replace.as_ref().and_then(|ranges_to_replace| {
12310 let newest_selection_id = this.selections.newest_anchor().id;
12311 this.selections
12312 .all::<OffsetUtf16>(cx)
12313 .iter()
12314 .zip(ranges_to_replace.iter())
12315 .find_map(|(selection, range)| {
12316 if selection.id == newest_selection_id {
12317 Some(
12318 (range.start.0 as isize - selection.head().0 as isize)
12319 ..(range.end.0 as isize - selection.head().0 as isize),
12320 )
12321 } else {
12322 None
12323 }
12324 })
12325 });
12326
12327 cx.emit(EditorEvent::InputHandled {
12328 utf16_range_to_replace: range_to_replace,
12329 text: text.into(),
12330 });
12331
12332 if let Some(ranges) = ranges_to_replace {
12333 this.change_selections(None, cx, |s| s.select_ranges(ranges));
12334 }
12335
12336 let marked_ranges = {
12337 let snapshot = this.buffer.read(cx).read(cx);
12338 this.selections
12339 .disjoint_anchors()
12340 .iter()
12341 .map(|selection| {
12342 selection.start.bias_left(&snapshot)..selection.end.bias_right(&snapshot)
12343 })
12344 .collect::<Vec<_>>()
12345 };
12346
12347 if text.is_empty() {
12348 this.unmark_text(cx);
12349 } else {
12350 this.highlight_text::<InputComposition>(
12351 marked_ranges.clone(),
12352 HighlightStyle {
12353 underline: Some(UnderlineStyle {
12354 thickness: px(1.),
12355 color: None,
12356 wavy: false,
12357 }),
12358 ..Default::default()
12359 },
12360 cx,
12361 );
12362 }
12363
12364 // Disable auto-closing when composing text (i.e. typing a `"` on a Brazilian keyboard)
12365 let use_autoclose = this.use_autoclose;
12366 let use_auto_surround = this.use_auto_surround;
12367 this.set_use_autoclose(false);
12368 this.set_use_auto_surround(false);
12369 this.handle_input(text, cx);
12370 this.set_use_autoclose(use_autoclose);
12371 this.set_use_auto_surround(use_auto_surround);
12372
12373 if let Some(new_selected_range) = new_selected_range_utf16 {
12374 let snapshot = this.buffer.read(cx).read(cx);
12375 let new_selected_ranges = marked_ranges
12376 .into_iter()
12377 .map(|marked_range| {
12378 let insertion_start = marked_range.start.to_offset_utf16(&snapshot).0;
12379 let new_start = OffsetUtf16(new_selected_range.start + insertion_start);
12380 let new_end = OffsetUtf16(new_selected_range.end + insertion_start);
12381 snapshot.clip_offset_utf16(new_start, Bias::Left)
12382 ..snapshot.clip_offset_utf16(new_end, Bias::Right)
12383 })
12384 .collect::<Vec<_>>();
12385
12386 drop(snapshot);
12387 this.change_selections(None, cx, |selections| {
12388 selections.select_ranges(new_selected_ranges)
12389 });
12390 }
12391 });
12392
12393 self.ime_transaction = self.ime_transaction.or(transaction);
12394 if let Some(transaction) = self.ime_transaction {
12395 self.buffer.update(cx, |buffer, cx| {
12396 buffer.group_until_transaction(transaction, cx);
12397 });
12398 }
12399
12400 if self.text_highlights::<InputComposition>(cx).is_none() {
12401 self.ime_transaction.take();
12402 }
12403 }
12404
12405 fn bounds_for_range(
12406 &mut self,
12407 range_utf16: Range<usize>,
12408 element_bounds: gpui::Bounds<Pixels>,
12409 cx: &mut ViewContext<Self>,
12410 ) -> Option<gpui::Bounds<Pixels>> {
12411 let text_layout_details = self.text_layout_details(cx);
12412 let style = &text_layout_details.editor_style;
12413 let font_id = cx.text_system().resolve_font(&style.text.font());
12414 let font_size = style.text.font_size.to_pixels(cx.rem_size());
12415 let line_height = style.text.line_height_in_pixels(cx.rem_size());
12416
12417 let em_width = cx
12418 .text_system()
12419 .typographic_bounds(font_id, font_size, 'm')
12420 .unwrap()
12421 .size
12422 .width;
12423
12424 let snapshot = self.snapshot(cx);
12425 let scroll_position = snapshot.scroll_position();
12426 let scroll_left = scroll_position.x * em_width;
12427
12428 let start = OffsetUtf16(range_utf16.start).to_display_point(&snapshot);
12429 let x = snapshot.x_for_display_point(start, &text_layout_details) - scroll_left
12430 + self.gutter_dimensions.width;
12431 let y = line_height * (start.row().as_f32() - scroll_position.y);
12432
12433 Some(Bounds {
12434 origin: element_bounds.origin + point(x, y),
12435 size: size(em_width, line_height),
12436 })
12437 }
12438}
12439
12440trait SelectionExt {
12441 fn display_range(&self, map: &DisplaySnapshot) -> Range<DisplayPoint>;
12442 fn spanned_rows(
12443 &self,
12444 include_end_if_at_line_start: bool,
12445 map: &DisplaySnapshot,
12446 ) -> Range<MultiBufferRow>;
12447}
12448
12449impl<T: ToPoint + ToOffset> SelectionExt for Selection<T> {
12450 fn display_range(&self, map: &DisplaySnapshot) -> Range<DisplayPoint> {
12451 let start = self
12452 .start
12453 .to_point(&map.buffer_snapshot)
12454 .to_display_point(map);
12455 let end = self
12456 .end
12457 .to_point(&map.buffer_snapshot)
12458 .to_display_point(map);
12459 if self.reversed {
12460 end..start
12461 } else {
12462 start..end
12463 }
12464 }
12465
12466 fn spanned_rows(
12467 &self,
12468 include_end_if_at_line_start: bool,
12469 map: &DisplaySnapshot,
12470 ) -> Range<MultiBufferRow> {
12471 let start = self.start.to_point(&map.buffer_snapshot);
12472 let mut end = self.end.to_point(&map.buffer_snapshot);
12473 if !include_end_if_at_line_start && start.row != end.row && end.column == 0 {
12474 end.row -= 1;
12475 }
12476
12477 let buffer_start = map.prev_line_boundary(start).0;
12478 let buffer_end = map.next_line_boundary(end).0;
12479 MultiBufferRow(buffer_start.row)..MultiBufferRow(buffer_end.row + 1)
12480 }
12481}
12482
12483impl<T: InvalidationRegion> InvalidationStack<T> {
12484 fn invalidate<S>(&mut self, selections: &[Selection<S>], buffer: &MultiBufferSnapshot)
12485 where
12486 S: Clone + ToOffset,
12487 {
12488 while let Some(region) = self.last() {
12489 let all_selections_inside_invalidation_ranges =
12490 if selections.len() == region.ranges().len() {
12491 selections
12492 .iter()
12493 .zip(region.ranges().iter().map(|r| r.to_offset(buffer)))
12494 .all(|(selection, invalidation_range)| {
12495 let head = selection.head().to_offset(buffer);
12496 invalidation_range.start <= head && invalidation_range.end >= head
12497 })
12498 } else {
12499 false
12500 };
12501
12502 if all_selections_inside_invalidation_ranges {
12503 break;
12504 } else {
12505 self.pop();
12506 }
12507 }
12508 }
12509}
12510
12511impl<T> Default for InvalidationStack<T> {
12512 fn default() -> Self {
12513 Self(Default::default())
12514 }
12515}
12516
12517impl<T> Deref for InvalidationStack<T> {
12518 type Target = Vec<T>;
12519
12520 fn deref(&self) -> &Self::Target {
12521 &self.0
12522 }
12523}
12524
12525impl<T> DerefMut for InvalidationStack<T> {
12526 fn deref_mut(&mut self) -> &mut Self::Target {
12527 &mut self.0
12528 }
12529}
12530
12531impl InvalidationRegion for SnippetState {
12532 fn ranges(&self) -> &[Range<Anchor>] {
12533 &self.ranges[self.active_index]
12534 }
12535}
12536
12537pub fn diagnostic_block_renderer(diagnostic: Diagnostic, _is_valid: bool) -> RenderBlock {
12538 let (text_without_backticks, code_ranges) = highlight_diagnostic_message(&diagnostic);
12539
12540 Box::new(move |cx: &mut BlockContext| {
12541 let group_id: SharedString = cx.block_id.to_string().into();
12542
12543 let mut text_style = cx.text_style().clone();
12544 text_style.color = diagnostic_style(diagnostic.severity, cx.theme().status());
12545 let theme_settings = ThemeSettings::get_global(cx);
12546 text_style.font_family = theme_settings.buffer_font.family.clone();
12547 text_style.font_style = theme_settings.buffer_font.style;
12548 text_style.font_features = theme_settings.buffer_font.features.clone();
12549 text_style.font_weight = theme_settings.buffer_font.weight;
12550
12551 let multi_line_diagnostic = diagnostic.message.contains('\n');
12552
12553 let buttons = |diagnostic: &Diagnostic, block_id: usize| {
12554 if multi_line_diagnostic {
12555 v_flex()
12556 } else {
12557 h_flex()
12558 }
12559 .children(diagnostic.is_primary.then(|| {
12560 IconButton::new(("close-block", block_id), IconName::XCircle)
12561 .icon_color(Color::Muted)
12562 .size(ButtonSize::Compact)
12563 .style(ButtonStyle::Transparent)
12564 .visible_on_hover(group_id.clone())
12565 .on_click(move |_click, cx| cx.dispatch_action(Box::new(Cancel)))
12566 .tooltip(|cx| Tooltip::for_action("Close Diagnostics", &Cancel, cx))
12567 }))
12568 .child(
12569 IconButton::new(("copy-block", block_id), IconName::Copy)
12570 .icon_color(Color::Muted)
12571 .size(ButtonSize::Compact)
12572 .style(ButtonStyle::Transparent)
12573 .visible_on_hover(group_id.clone())
12574 .on_click({
12575 let message = diagnostic.message.clone();
12576 move |_click, cx| cx.write_to_clipboard(ClipboardItem::new(message.clone()))
12577 })
12578 .tooltip(|cx| Tooltip::text("Copy diagnostic message", cx)),
12579 )
12580 };
12581
12582 let icon_size = buttons(&diagnostic, cx.block_id)
12583 .into_any_element()
12584 .layout_as_root(AvailableSpace::min_size(), cx);
12585
12586 h_flex()
12587 .id(cx.block_id)
12588 .group(group_id.clone())
12589 .relative()
12590 .size_full()
12591 .pl(cx.gutter_dimensions.width)
12592 .w(cx.max_width + cx.gutter_dimensions.width)
12593 .child(
12594 div()
12595 .flex()
12596 .w(cx.anchor_x - cx.gutter_dimensions.width - icon_size.width)
12597 .flex_shrink(),
12598 )
12599 .child(buttons(&diagnostic, cx.block_id))
12600 .child(div().flex().flex_shrink_0().child(
12601 StyledText::new(text_without_backticks.clone()).with_highlights(
12602 &text_style,
12603 code_ranges.iter().map(|range| {
12604 (
12605 range.clone(),
12606 HighlightStyle {
12607 font_weight: Some(FontWeight::BOLD),
12608 ..Default::default()
12609 },
12610 )
12611 }),
12612 ),
12613 ))
12614 .into_any_element()
12615 })
12616}
12617
12618pub fn highlight_diagnostic_message(diagnostic: &Diagnostic) -> (SharedString, Vec<Range<usize>>) {
12619 let mut text_without_backticks = String::new();
12620 let mut code_ranges = Vec::new();
12621
12622 if let Some(source) = &diagnostic.source {
12623 text_without_backticks.push_str(&source);
12624 code_ranges.push(0..source.len());
12625 text_without_backticks.push_str(": ");
12626 }
12627
12628 let mut prev_offset = 0;
12629 let mut in_code_block = false;
12630 for (ix, _) in diagnostic
12631 .message
12632 .match_indices('`')
12633 .chain([(diagnostic.message.len(), "")])
12634 {
12635 let prev_len = text_without_backticks.len();
12636 text_without_backticks.push_str(&diagnostic.message[prev_offset..ix]);
12637 prev_offset = ix + 1;
12638 if in_code_block {
12639 code_ranges.push(prev_len..text_without_backticks.len());
12640 }
12641 in_code_block = !in_code_block;
12642 }
12643
12644 (text_without_backticks.into(), code_ranges)
12645}
12646
12647fn diagnostic_style(severity: DiagnosticSeverity, colors: &StatusColors) -> Hsla {
12648 match severity {
12649 DiagnosticSeverity::ERROR => colors.error,
12650 DiagnosticSeverity::WARNING => colors.warning,
12651 DiagnosticSeverity::INFORMATION => colors.info,
12652 DiagnosticSeverity::HINT => colors.info,
12653 _ => colors.ignored,
12654 }
12655}
12656
12657pub fn styled_runs_for_code_label<'a>(
12658 label: &'a CodeLabel,
12659 syntax_theme: &'a theme::SyntaxTheme,
12660) -> impl 'a + Iterator<Item = (Range<usize>, HighlightStyle)> {
12661 let fade_out = HighlightStyle {
12662 fade_out: Some(0.35),
12663 ..Default::default()
12664 };
12665
12666 let mut prev_end = label.filter_range.end;
12667 label
12668 .runs
12669 .iter()
12670 .enumerate()
12671 .flat_map(move |(ix, (range, highlight_id))| {
12672 let style = if let Some(style) = highlight_id.style(syntax_theme) {
12673 style
12674 } else {
12675 return Default::default();
12676 };
12677 let mut muted_style = style;
12678 muted_style.highlight(fade_out);
12679
12680 let mut runs = SmallVec::<[(Range<usize>, HighlightStyle); 3]>::new();
12681 if range.start >= label.filter_range.end {
12682 if range.start > prev_end {
12683 runs.push((prev_end..range.start, fade_out));
12684 }
12685 runs.push((range.clone(), muted_style));
12686 } else if range.end <= label.filter_range.end {
12687 runs.push((range.clone(), style));
12688 } else {
12689 runs.push((range.start..label.filter_range.end, style));
12690 runs.push((label.filter_range.end..range.end, muted_style));
12691 }
12692 prev_end = cmp::max(prev_end, range.end);
12693
12694 if ix + 1 == label.runs.len() && label.text.len() > prev_end {
12695 runs.push((prev_end..label.text.len(), fade_out));
12696 }
12697
12698 runs
12699 })
12700}
12701
12702pub(crate) fn split_words(text: &str) -> impl std::iter::Iterator<Item = &str> + '_ {
12703 let mut prev_index = 0;
12704 let mut prev_codepoint: Option<char> = None;
12705 text.char_indices()
12706 .chain([(text.len(), '\0')])
12707 .filter_map(move |(index, codepoint)| {
12708 let prev_codepoint = prev_codepoint.replace(codepoint)?;
12709 let is_boundary = index == text.len()
12710 || !prev_codepoint.is_uppercase() && codepoint.is_uppercase()
12711 || !prev_codepoint.is_alphanumeric() && codepoint.is_alphanumeric();
12712 if is_boundary {
12713 let chunk = &text[prev_index..index];
12714 prev_index = index;
12715 Some(chunk)
12716 } else {
12717 None
12718 }
12719 })
12720}
12721
12722trait RangeToAnchorExt {
12723 fn to_anchors(self, snapshot: &MultiBufferSnapshot) -> Range<Anchor>;
12724}
12725
12726impl<T: ToOffset> RangeToAnchorExt for Range<T> {
12727 fn to_anchors(self, snapshot: &MultiBufferSnapshot) -> Range<Anchor> {
12728 let start_offset = self.start.to_offset(snapshot);
12729 let end_offset = self.end.to_offset(snapshot);
12730 if start_offset == end_offset {
12731 snapshot.anchor_before(start_offset)..snapshot.anchor_before(end_offset)
12732 } else {
12733 snapshot.anchor_after(self.start)..snapshot.anchor_before(self.end)
12734 }
12735 }
12736}
12737
12738pub trait RowExt {
12739 fn as_f32(&self) -> f32;
12740
12741 fn next_row(&self) -> Self;
12742
12743 fn previous_row(&self) -> Self;
12744
12745 fn minus(&self, other: Self) -> u32;
12746}
12747
12748impl RowExt for DisplayRow {
12749 fn as_f32(&self) -> f32 {
12750 self.0 as f32
12751 }
12752
12753 fn next_row(&self) -> Self {
12754 Self(self.0 + 1)
12755 }
12756
12757 fn previous_row(&self) -> Self {
12758 Self(self.0.saturating_sub(1))
12759 }
12760
12761 fn minus(&self, other: Self) -> u32 {
12762 self.0 - other.0
12763 }
12764}
12765
12766impl RowExt for MultiBufferRow {
12767 fn as_f32(&self) -> f32 {
12768 self.0 as f32
12769 }
12770
12771 fn next_row(&self) -> Self {
12772 Self(self.0 + 1)
12773 }
12774
12775 fn previous_row(&self) -> Self {
12776 Self(self.0.saturating_sub(1))
12777 }
12778
12779 fn minus(&self, other: Self) -> u32 {
12780 self.0 - other.0
12781 }
12782}
12783
12784trait RowRangeExt {
12785 type Row;
12786
12787 fn len(&self) -> usize;
12788
12789 fn iter_rows(&self) -> impl DoubleEndedIterator<Item = Self::Row>;
12790}
12791
12792impl RowRangeExt for Range<MultiBufferRow> {
12793 type Row = MultiBufferRow;
12794
12795 fn len(&self) -> usize {
12796 (self.end.0 - self.start.0) as usize
12797 }
12798
12799 fn iter_rows(&self) -> impl DoubleEndedIterator<Item = MultiBufferRow> {
12800 (self.start.0..self.end.0).map(MultiBufferRow)
12801 }
12802}
12803
12804impl RowRangeExt for Range<DisplayRow> {
12805 type Row = DisplayRow;
12806
12807 fn len(&self) -> usize {
12808 (self.end.0 - self.start.0) as usize
12809 }
12810
12811 fn iter_rows(&self) -> impl DoubleEndedIterator<Item = DisplayRow> {
12812 (self.start.0..self.end.0).map(DisplayRow)
12813 }
12814}
12815
12816fn hunk_status(hunk: &DiffHunk<MultiBufferRow>) -> DiffHunkStatus {
12817 if hunk.diff_base_byte_range.is_empty() {
12818 DiffHunkStatus::Added
12819 } else if hunk.associated_range.is_empty() {
12820 DiffHunkStatus::Removed
12821 } else {
12822 DiffHunkStatus::Modified
12823 }
12824}