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;
18pub mod display_map;
19mod editor_settings;
20mod element;
21mod hunk_diff;
22mod inlay_hint_cache;
23
24mod debounced_delay;
25mod git;
26mod highlight_matching_bracket;
27mod hover_links;
28mod hover_popover;
29mod inline_completion_provider;
30pub mod items;
31mod mouse_context_menu;
32pub mod movement;
33mod persistence;
34mod rust_analyzer_ext;
35pub mod scroll;
36mod selections_collection;
37pub mod tasks;
38
39#[cfg(test)]
40mod editor_tests;
41#[cfg(any(test, feature = "test-support"))]
42pub mod test;
43use ::git::diff::{DiffHunk, DiffHunkStatus};
44use ::git::{parse_git_remote_url, BuildPermalinkParams, GitHostingProviderRegistry};
45pub(crate) use actions::*;
46use aho_corasick::AhoCorasick;
47use anyhow::{anyhow, Context as _, Result};
48use blink_manager::BlinkManager;
49use client::{Collaborator, ParticipantIndex};
50use clock::ReplicaId;
51use collections::{hash_map, BTreeMap, Bound, HashMap, HashSet, VecDeque};
52use convert_case::{Case, Casing};
53use debounced_delay::DebouncedDelay;
54pub use display_map::DisplayPoint;
55use display_map::*;
56use editor_settings::CurrentLineHighlight;
57pub use editor_settings::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, FocusableView, FontId, FontStyle,
70 FontWeight, HighlightStyle, Hsla, InteractiveText, KeyContext, Model, MouseButton, PaintQuad,
71 ParentElement, Pixels, Render, SharedString, Size, StrikethroughStyle, Styled, StyledText,
72 Subscription, Task, TextStyle, UnderlineStyle, UniformListScrollHandle, View, ViewContext,
73 ViewInputHandler, VisualContext, WeakView, WhiteSpace, WindowContext,
74};
75use highlight_matching_bracket::refresh_matching_bracket_highlights;
76use hover_popover::{hide_hover, HoverState};
77use hunk_diff::ExpandedHunks;
78pub(crate) use hunk_diff::HunkToExpand;
79use inlay_hint_cache::{InlayHintCache, InlaySplice, InvalidationStrategy};
80pub use inline_completion_provider::*;
81pub use items::MAX_TAB_TITLE_LEN;
82use itertools::Itertools;
83use language::{
84 char_kind,
85 language_settings::{self, all_language_settings, InlayHintSettings},
86 markdown, point_from_lsp, AutoindentMode, BracketPair, Buffer, Capability, CharKind, CodeLabel,
87 CursorShape, Diagnostic, Documentation, IndentKind, IndentSize, Language, OffsetRangeExt,
88 Point, Selection, SelectionGoal, TransactionId,
89};
90use language::{BufferRow, Runnable, RunnableRange};
91use task::{ResolvedTask, TaskTemplate, TaskVariables};
92
93use hover_links::{HoverLink, HoveredLinkState, InlayHighlight};
94use lsp::{DiagnosticSeverity, LanguageServerId};
95use mouse_context_menu::MouseContextMenu;
96use movement::TextLayoutDetails;
97pub use multi_buffer::{
98 Anchor, AnchorRangeExt, ExcerptId, ExcerptRange, MultiBuffer, MultiBufferSnapshot, ToOffset,
99 ToPoint,
100};
101use multi_buffer::{MultiBufferPoint, MultiBufferRow, ToOffsetUtf16};
102use ordered_float::OrderedFloat;
103use parking_lot::{Mutex, RwLock};
104use project::project_settings::{GitGutterSetting, ProjectSettings};
105use project::{
106 CodeAction, Completion, FormatTrigger, Item, Location, Project, ProjectPath,
107 ProjectTransaction, TaskSourceKind, WorktreeId,
108};
109use rand::prelude::*;
110use rpc::{proto::*, ErrorExt};
111use scroll::{Autoscroll, OngoingScroll, ScrollAnchor, ScrollManager, ScrollbarAutoHide};
112use selections_collection::{resolve_multiple, MutableSelectionsCollection, SelectionsCollection};
113use serde::{Deserialize, Serialize};
114use settings::{Settings, SettingsStore};
115use smallvec::SmallVec;
116use snippet::Snippet;
117use std::ops::Not as _;
118use std::{
119 any::TypeId,
120 borrow::Cow,
121 cmp::{self, Ordering, Reverse},
122 mem,
123 num::NonZeroU32,
124 ops::{ControlFlow, Deref, DerefMut, Range, RangeInclusive},
125 path::Path,
126 sync::Arc,
127 time::{Duration, Instant},
128};
129pub use sum_tree::Bias;
130use sum_tree::TreeMap;
131use text::{BufferId, OffsetUtf16, Rope};
132use theme::{
133 observe_buffer_font_size_adjustment, ActiveTheme, PlayerColor, StatusColors, SyntaxTheme,
134 ThemeColors, ThemeSettings,
135};
136use ui::{
137 h_flex, prelude::*, ButtonSize, ButtonStyle, IconButton, IconName, IconSize, ListItem, Popover,
138 Tooltip,
139};
140use util::{defer, maybe, post_inc, RangeExt, ResultExt, TryFutureExt};
141use workspace::item::{ItemHandle, PreviewTabsSettings};
142use workspace::notifications::{DetachAndPromptErr, NotificationId};
143use workspace::{
144 searchable::SearchEvent, ItemNavHistory, SplitDirection, ViewId, Workspace, WorkspaceId,
145};
146use workspace::{OpenInTerminal, OpenTerminal, Toast};
147
148use crate::hover_links::find_url;
149
150pub const DEFAULT_MULTIBUFFER_CONTEXT: u32 = 2;
151const CURSOR_BLINK_INTERVAL: Duration = Duration::from_millis(500);
152const MAX_LINE_LEN: usize = 1024;
153const MIN_NAVIGATION_HISTORY_ROW_DELTA: i64 = 10;
154const MAX_SELECTION_HISTORY_LEN: usize = 1024;
155pub(crate) const CURSORS_VISIBLE_FOR: Duration = Duration::from_millis(2000);
156#[doc(hidden)]
157pub const CODE_ACTIONS_DEBOUNCE_TIMEOUT: Duration = Duration::from_millis(250);
158#[doc(hidden)]
159pub const DOCUMENT_HIGHLIGHTS_DEBOUNCE_TIMEOUT: Duration = Duration::from_millis(75);
160
161pub(crate) const FORMAT_TIMEOUT: Duration = Duration::from_secs(2);
162
163pub fn render_parsed_markdown(
164 element_id: impl Into<ElementId>,
165 parsed: &language::ParsedMarkdown,
166 editor_style: &EditorStyle,
167 workspace: Option<WeakView<Workspace>>,
168 cx: &mut WindowContext,
169) -> InteractiveText {
170 let code_span_background_color = cx
171 .theme()
172 .colors()
173 .editor_document_highlight_read_background;
174
175 let highlights = gpui::combine_highlights(
176 parsed.highlights.iter().filter_map(|(range, highlight)| {
177 let highlight = highlight.to_highlight_style(&editor_style.syntax)?;
178 Some((range.clone(), highlight))
179 }),
180 parsed
181 .regions
182 .iter()
183 .zip(&parsed.region_ranges)
184 .filter_map(|(region, range)| {
185 if region.code {
186 Some((
187 range.clone(),
188 HighlightStyle {
189 background_color: Some(code_span_background_color),
190 ..Default::default()
191 },
192 ))
193 } else {
194 None
195 }
196 }),
197 );
198
199 let mut links = Vec::new();
200 let mut link_ranges = Vec::new();
201 for (range, region) in parsed.region_ranges.iter().zip(&parsed.regions) {
202 if let Some(link) = region.link.clone() {
203 links.push(link);
204 link_ranges.push(range.clone());
205 }
206 }
207
208 InteractiveText::new(
209 element_id,
210 StyledText::new(parsed.text.clone()).with_highlights(&editor_style.text, highlights),
211 )
212 .on_click(link_ranges, move |clicked_range_ix, cx| {
213 match &links[clicked_range_ix] {
214 markdown::Link::Web { url } => cx.open_url(url),
215 markdown::Link::Path { path } => {
216 if let Some(workspace) = &workspace {
217 _ = workspace.update(cx, |workspace, cx| {
218 workspace.open_abs_path(path.clone(), false, cx).detach();
219 });
220 }
221 }
222 }
223 })
224}
225
226#[derive(Clone, Copy, Debug, PartialEq, Eq, PartialOrd, Ord, Hash)]
227pub(crate) enum InlayId {
228 Suggestion(usize),
229 Hint(usize),
230}
231
232impl InlayId {
233 fn id(&self) -> usize {
234 match self {
235 Self::Suggestion(id) => *id,
236 Self::Hint(id) => *id,
237 }
238 }
239}
240
241enum DiffRowHighlight {}
242enum DocumentHighlightRead {}
243enum DocumentHighlightWrite {}
244enum InputComposition {}
245
246#[derive(Copy, Clone, PartialEq, Eq)]
247pub enum Direction {
248 Prev,
249 Next,
250}
251
252pub fn init_settings(cx: &mut AppContext) {
253 EditorSettings::register(cx);
254}
255
256pub fn init(cx: &mut AppContext) {
257 init_settings(cx);
258
259 workspace::register_project_item::<Editor>(cx);
260 workspace::register_followable_item::<Editor>(cx);
261 workspace::register_deserializable_item::<Editor>(cx);
262 cx.observe_new_views(
263 |workspace: &mut Workspace, _cx: &mut ViewContext<Workspace>| {
264 workspace.register_action(Editor::new_file);
265 workspace.register_action(Editor::new_file_in_direction);
266 },
267 )
268 .detach();
269
270 cx.on_action(move |_: &workspace::NewFile, cx| {
271 let app_state = workspace::AppState::global(cx);
272 if let Some(app_state) = app_state.upgrade() {
273 workspace::open_new(app_state, cx, |workspace, cx| {
274 Editor::new_file(workspace, &Default::default(), cx)
275 })
276 .detach();
277 }
278 });
279 cx.on_action(move |_: &workspace::NewWindow, cx| {
280 let app_state = workspace::AppState::global(cx);
281 if let Some(app_state) = app_state.upgrade() {
282 workspace::open_new(app_state, cx, |workspace, cx| {
283 Editor::new_file(workspace, &Default::default(), cx)
284 })
285 .detach();
286 }
287 });
288}
289
290pub struct SearchWithinRange;
291
292trait InvalidationRegion {
293 fn ranges(&self) -> &[Range<Anchor>];
294}
295
296#[derive(Clone, Debug, PartialEq)]
297pub enum SelectPhase {
298 Begin {
299 position: DisplayPoint,
300 add: bool,
301 click_count: usize,
302 },
303 BeginColumnar {
304 position: DisplayPoint,
305 goal_column: u32,
306 },
307 Extend {
308 position: DisplayPoint,
309 click_count: usize,
310 },
311 Update {
312 position: DisplayPoint,
313 goal_column: u32,
314 scroll_delta: gpui::Point<f32>,
315 },
316 End,
317}
318
319#[derive(Clone, Debug)]
320pub enum SelectMode {
321 Character,
322 Word(Range<Anchor>),
323 Line(Range<Anchor>),
324 All,
325}
326
327#[derive(Copy, Clone, PartialEq, Eq, Debug)]
328pub enum EditorMode {
329 SingleLine,
330 AutoHeight { max_lines: usize },
331 Full,
332}
333
334#[derive(Clone, Debug)]
335pub enum SoftWrap {
336 None,
337 PreferLine,
338 EditorWidth,
339 Column(u32),
340}
341
342#[derive(Clone)]
343pub struct EditorStyle {
344 pub background: Hsla,
345 pub local_player: PlayerColor,
346 pub text: TextStyle,
347 pub scrollbar_width: Pixels,
348 pub syntax: Arc<SyntaxTheme>,
349 pub status: StatusColors,
350 pub inlay_hints_style: HighlightStyle,
351 pub suggestions_style: HighlightStyle,
352}
353
354impl Default for EditorStyle {
355 fn default() -> Self {
356 Self {
357 background: Hsla::default(),
358 local_player: PlayerColor::default(),
359 text: TextStyle::default(),
360 scrollbar_width: Pixels::default(),
361 syntax: Default::default(),
362 // HACK: Status colors don't have a real default.
363 // We should look into removing the status colors from the editor
364 // style and retrieve them directly from the theme.
365 status: StatusColors::dark(),
366 inlay_hints_style: HighlightStyle::default(),
367 suggestions_style: HighlightStyle::default(),
368 }
369 }
370}
371
372type CompletionId = usize;
373
374// type GetFieldEditorTheme = dyn Fn(&theme::Theme) -> theme::FieldEditor;
375// type OverrideTextStyle = dyn Fn(&EditorStyle) -> Option<HighlightStyle>;
376
377type BackgroundHighlight = (fn(&ThemeColors) -> Hsla, Arc<[Range<Anchor>]>);
378
379struct ScrollbarMarkerState {
380 scrollbar_size: Size<Pixels>,
381 dirty: bool,
382 markers: Arc<[PaintQuad]>,
383 pending_refresh: Option<Task<Result<()>>>,
384}
385
386impl ScrollbarMarkerState {
387 fn should_refresh(&self, scrollbar_size: Size<Pixels>) -> bool {
388 self.pending_refresh.is_none() && (self.scrollbar_size != scrollbar_size || self.dirty)
389 }
390}
391
392impl Default for ScrollbarMarkerState {
393 fn default() -> Self {
394 Self {
395 scrollbar_size: Size::default(),
396 dirty: false,
397 markers: Arc::from([]),
398 pending_refresh: None,
399 }
400 }
401}
402
403#[derive(Clone, Debug)]
404struct RunnableTasks {
405 templates: Vec<(TaskSourceKind, TaskTemplate)>,
406 // We need the column at which the task context evaluation should take place.
407 column: u32,
408 extra_variables: HashMap<String, String>,
409}
410
411#[derive(Clone)]
412struct ResolvedTasks {
413 templates: SmallVec<[(TaskSourceKind, ResolvedTask); 1]>,
414 position: Anchor,
415}
416
417/// Zed's primary text input `View`, allowing users to edit a [`MultiBuffer`]
418///
419/// See the [module level documentation](self) for more information.
420pub struct Editor {
421 focus_handle: FocusHandle,
422 /// The text buffer being edited
423 buffer: Model<MultiBuffer>,
424 /// Map of how text in the buffer should be displayed.
425 /// Handles soft wraps, folds, fake inlay text insertions, etc.
426 pub display_map: Model<DisplayMap>,
427 pub selections: SelectionsCollection,
428 pub scroll_manager: ScrollManager,
429 columnar_selection_tail: Option<Anchor>,
430 add_selections_state: Option<AddSelectionsState>,
431 select_next_state: Option<SelectNextState>,
432 select_prev_state: Option<SelectNextState>,
433 selection_history: SelectionHistory,
434 autoclose_regions: Vec<AutocloseRegion>,
435 snippet_stack: InvalidationStack<SnippetState>,
436 select_larger_syntax_node_stack: Vec<Box<[Selection<usize>]>>,
437 ime_transaction: Option<TransactionId>,
438 active_diagnostics: Option<ActiveDiagnosticGroup>,
439 soft_wrap_mode_override: Option<language_settings::SoftWrap>,
440 project: Option<Model<Project>>,
441 completion_provider: Option<Box<dyn CompletionProvider>>,
442 collaboration_hub: Option<Box<dyn CollaborationHub>>,
443 blink_manager: Model<BlinkManager>,
444 show_cursor_names: bool,
445 hovered_cursors: HashMap<HoveredCursor, Task<()>>,
446 pub show_local_selections: bool,
447 mode: EditorMode,
448 show_breadcrumbs: bool,
449 show_gutter: bool,
450 show_wrap_guides: Option<bool>,
451 placeholder_text: Option<Arc<str>>,
452 highlight_order: usize,
453 highlighted_rows: HashMap<TypeId, Vec<(usize, RangeInclusive<Anchor>, Option<Hsla>)>>,
454 background_highlights: TreeMap<TypeId, BackgroundHighlight>,
455 scrollbar_marker_state: ScrollbarMarkerState,
456 nav_history: Option<ItemNavHistory>,
457 context_menu: RwLock<Option<ContextMenu>>,
458 mouse_context_menu: Option<MouseContextMenu>,
459 completion_tasks: Vec<(CompletionId, Task<Option<()>>)>,
460 find_all_references_task_sources: Vec<Anchor>,
461 next_completion_id: CompletionId,
462 completion_documentation_pre_resolve_debounce: DebouncedDelay,
463 available_code_actions: Option<(Location, Arc<[CodeAction]>)>,
464 code_actions_task: Option<Task<()>>,
465 document_highlights_task: Option<Task<()>>,
466 pending_rename: Option<RenameState>,
467 searchable: bool,
468 cursor_shape: CursorShape,
469 current_line_highlight: CurrentLineHighlight,
470 collapse_matches: bool,
471 autoindent_mode: Option<AutoindentMode>,
472 workspace: Option<(WeakView<Workspace>, WorkspaceId)>,
473 keymap_context_layers: BTreeMap<TypeId, KeyContext>,
474 input_enabled: bool,
475 use_modal_editing: bool,
476 read_only: bool,
477 leader_peer_id: Option<PeerId>,
478 remote_id: Option<ViewId>,
479 hover_state: HoverState,
480 gutter_hovered: bool,
481 hovered_link_state: Option<HoveredLinkState>,
482 inline_completion_provider: Option<RegisteredInlineCompletionProvider>,
483 active_inline_completion: Option<Inlay>,
484 show_inline_completions: bool,
485 inlay_hint_cache: InlayHintCache,
486 expanded_hunks: ExpandedHunks,
487 next_inlay_id: usize,
488 _subscriptions: Vec<Subscription>,
489 pixel_position_of_newest_cursor: Option<gpui::Point<Pixels>>,
490 gutter_dimensions: GutterDimensions,
491 pub vim_replace_map: HashMap<Range<usize>, String>,
492 style: Option<EditorStyle>,
493 editor_actions: Vec<Box<dyn Fn(&mut ViewContext<Self>)>>,
494 use_autoclose: bool,
495 auto_replace_emoji_shortcode: bool,
496 show_git_blame_gutter: bool,
497 show_git_blame_inline: bool,
498 show_git_blame_inline_delay_task: Option<Task<()>>,
499 git_blame_inline_enabled: bool,
500 blame: Option<Model<GitBlame>>,
501 blame_subscription: Option<Subscription>,
502 custom_context_menu: Option<
503 Box<
504 dyn 'static
505 + Fn(&mut Self, DisplayPoint, &mut ViewContext<Self>) -> Option<View<ui::ContextMenu>>,
506 >,
507 >,
508 last_bounds: Option<Bounds<Pixels>>,
509 expect_bounds_change: Option<Bounds<Pixels>>,
510 tasks: HashMap<(BufferId, BufferRow), (usize, RunnableTasks)>,
511 tasks_update_task: Option<Task<()>>,
512}
513
514#[derive(Clone)]
515pub struct EditorSnapshot {
516 pub mode: EditorMode,
517 show_gutter: bool,
518 render_git_blame_gutter: bool,
519 pub display_snapshot: DisplaySnapshot,
520 pub placeholder_text: Option<Arc<str>>,
521 is_focused: bool,
522 scroll_anchor: ScrollAnchor,
523 ongoing_scroll: OngoingScroll,
524 current_line_highlight: CurrentLineHighlight,
525}
526
527const GIT_BLAME_GUTTER_WIDTH_CHARS: f32 = 53.;
528
529#[derive(Debug, Clone, Copy)]
530pub struct GutterDimensions {
531 pub left_padding: Pixels,
532 pub right_padding: Pixels,
533 pub width: Pixels,
534 pub margin: Pixels,
535 pub git_blame_entries_width: Option<Pixels>,
536}
537
538impl Default for GutterDimensions {
539 fn default() -> Self {
540 Self {
541 left_padding: Pixels::ZERO,
542 right_padding: Pixels::ZERO,
543 width: Pixels::ZERO,
544 margin: Pixels::ZERO,
545 git_blame_entries_width: None,
546 }
547 }
548}
549
550#[derive(Debug)]
551pub struct RemoteSelection {
552 pub replica_id: ReplicaId,
553 pub selection: Selection<Anchor>,
554 pub cursor_shape: CursorShape,
555 pub peer_id: PeerId,
556 pub line_mode: bool,
557 pub participant_index: Option<ParticipantIndex>,
558 pub user_name: Option<SharedString>,
559}
560
561#[derive(Clone, Debug)]
562struct SelectionHistoryEntry {
563 selections: Arc<[Selection<Anchor>]>,
564 select_next_state: Option<SelectNextState>,
565 select_prev_state: Option<SelectNextState>,
566 add_selections_state: Option<AddSelectionsState>,
567}
568
569enum SelectionHistoryMode {
570 Normal,
571 Undoing,
572 Redoing,
573}
574
575#[derive(Clone, PartialEq, Eq, Hash)]
576struct HoveredCursor {
577 replica_id: u16,
578 selection_id: usize,
579}
580
581impl Default for SelectionHistoryMode {
582 fn default() -> Self {
583 Self::Normal
584 }
585}
586
587#[derive(Default)]
588struct SelectionHistory {
589 #[allow(clippy::type_complexity)]
590 selections_by_transaction:
591 HashMap<TransactionId, (Arc<[Selection<Anchor>]>, Option<Arc<[Selection<Anchor>]>>)>,
592 mode: SelectionHistoryMode,
593 undo_stack: VecDeque<SelectionHistoryEntry>,
594 redo_stack: VecDeque<SelectionHistoryEntry>,
595}
596
597impl SelectionHistory {
598 fn insert_transaction(
599 &mut self,
600 transaction_id: TransactionId,
601 selections: Arc<[Selection<Anchor>]>,
602 ) {
603 self.selections_by_transaction
604 .insert(transaction_id, (selections, None));
605 }
606
607 #[allow(clippy::type_complexity)]
608 fn transaction(
609 &self,
610 transaction_id: TransactionId,
611 ) -> Option<&(Arc<[Selection<Anchor>]>, Option<Arc<[Selection<Anchor>]>>)> {
612 self.selections_by_transaction.get(&transaction_id)
613 }
614
615 #[allow(clippy::type_complexity)]
616 fn transaction_mut(
617 &mut self,
618 transaction_id: TransactionId,
619 ) -> Option<&mut (Arc<[Selection<Anchor>]>, Option<Arc<[Selection<Anchor>]>>)> {
620 self.selections_by_transaction.get_mut(&transaction_id)
621 }
622
623 fn push(&mut self, entry: SelectionHistoryEntry) {
624 if !entry.selections.is_empty() {
625 match self.mode {
626 SelectionHistoryMode::Normal => {
627 self.push_undo(entry);
628 self.redo_stack.clear();
629 }
630 SelectionHistoryMode::Undoing => self.push_redo(entry),
631 SelectionHistoryMode::Redoing => self.push_undo(entry),
632 }
633 }
634 }
635
636 fn push_undo(&mut self, entry: SelectionHistoryEntry) {
637 if self
638 .undo_stack
639 .back()
640 .map_or(true, |e| e.selections != entry.selections)
641 {
642 self.undo_stack.push_back(entry);
643 if self.undo_stack.len() > MAX_SELECTION_HISTORY_LEN {
644 self.undo_stack.pop_front();
645 }
646 }
647 }
648
649 fn push_redo(&mut self, entry: SelectionHistoryEntry) {
650 if self
651 .redo_stack
652 .back()
653 .map_or(true, |e| e.selections != entry.selections)
654 {
655 self.redo_stack.push_back(entry);
656 if self.redo_stack.len() > MAX_SELECTION_HISTORY_LEN {
657 self.redo_stack.pop_front();
658 }
659 }
660 }
661}
662
663#[derive(Clone, Debug)]
664struct AddSelectionsState {
665 above: bool,
666 stack: Vec<usize>,
667}
668
669#[derive(Clone)]
670struct SelectNextState {
671 query: AhoCorasick,
672 wordwise: bool,
673 done: bool,
674}
675
676impl std::fmt::Debug for SelectNextState {
677 fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
678 f.debug_struct(std::any::type_name::<Self>())
679 .field("wordwise", &self.wordwise)
680 .field("done", &self.done)
681 .finish()
682 }
683}
684
685#[derive(Debug)]
686struct AutocloseRegion {
687 selection_id: usize,
688 range: Range<Anchor>,
689 pair: BracketPair,
690}
691
692#[derive(Debug)]
693struct SnippetState {
694 ranges: Vec<Vec<Range<Anchor>>>,
695 active_index: usize,
696}
697
698#[doc(hidden)]
699pub struct RenameState {
700 pub range: Range<Anchor>,
701 pub old_name: Arc<str>,
702 pub editor: View<Editor>,
703 block_id: BlockId,
704}
705
706struct InvalidationStack<T>(Vec<T>);
707
708struct RegisteredInlineCompletionProvider {
709 provider: Arc<dyn InlineCompletionProviderHandle>,
710 _subscription: Subscription,
711}
712
713enum ContextMenu {
714 Completions(CompletionsMenu),
715 CodeActions(CodeActionsMenu),
716}
717
718impl ContextMenu {
719 fn select_first(
720 &mut self,
721 project: Option<&Model<Project>>,
722 cx: &mut ViewContext<Editor>,
723 ) -> bool {
724 if self.visible() {
725 match self {
726 ContextMenu::Completions(menu) => menu.select_first(project, cx),
727 ContextMenu::CodeActions(menu) => menu.select_first(cx),
728 }
729 true
730 } else {
731 false
732 }
733 }
734
735 fn select_prev(
736 &mut self,
737 project: Option<&Model<Project>>,
738 cx: &mut ViewContext<Editor>,
739 ) -> bool {
740 if self.visible() {
741 match self {
742 ContextMenu::Completions(menu) => menu.select_prev(project, cx),
743 ContextMenu::CodeActions(menu) => menu.select_prev(cx),
744 }
745 true
746 } else {
747 false
748 }
749 }
750
751 fn select_next(
752 &mut self,
753 project: Option<&Model<Project>>,
754 cx: &mut ViewContext<Editor>,
755 ) -> bool {
756 if self.visible() {
757 match self {
758 ContextMenu::Completions(menu) => menu.select_next(project, cx),
759 ContextMenu::CodeActions(menu) => menu.select_next(cx),
760 }
761 true
762 } else {
763 false
764 }
765 }
766
767 fn select_last(
768 &mut self,
769 project: Option<&Model<Project>>,
770 cx: &mut ViewContext<Editor>,
771 ) -> bool {
772 if self.visible() {
773 match self {
774 ContextMenu::Completions(menu) => menu.select_last(project, cx),
775 ContextMenu::CodeActions(menu) => menu.select_last(cx),
776 }
777 true
778 } else {
779 false
780 }
781 }
782
783 fn visible(&self) -> bool {
784 match self {
785 ContextMenu::Completions(menu) => menu.visible(),
786 ContextMenu::CodeActions(menu) => menu.visible(),
787 }
788 }
789
790 fn render(
791 &self,
792 cursor_position: DisplayPoint,
793 style: &EditorStyle,
794 max_height: Pixels,
795 workspace: Option<WeakView<Workspace>>,
796 cx: &mut ViewContext<Editor>,
797 ) -> (ContextMenuOrigin, AnyElement) {
798 match self {
799 ContextMenu::Completions(menu) => (
800 ContextMenuOrigin::EditorPoint(cursor_position),
801 menu.render(style, max_height, workspace, cx),
802 ),
803 ContextMenu::CodeActions(menu) => menu.render(cursor_position, style, max_height, cx),
804 }
805 }
806}
807
808enum ContextMenuOrigin {
809 EditorPoint(DisplayPoint),
810 GutterIndicator(DisplayRow),
811}
812
813#[derive(Clone)]
814struct CompletionsMenu {
815 id: CompletionId,
816 initial_position: Anchor,
817 buffer: Model<Buffer>,
818 completions: Arc<RwLock<Box<[Completion]>>>,
819 match_candidates: Arc<[StringMatchCandidate]>,
820 matches: Arc<[StringMatch]>,
821 selected_item: usize,
822 scroll_handle: UniformListScrollHandle,
823 selected_completion_documentation_resolve_debounce: Arc<Mutex<DebouncedDelay>>,
824}
825
826impl CompletionsMenu {
827 fn select_first(&mut self, project: Option<&Model<Project>>, cx: &mut ViewContext<Editor>) {
828 self.selected_item = 0;
829 self.scroll_handle.scroll_to_item(self.selected_item);
830 self.attempt_resolve_selected_completion_documentation(project, cx);
831 cx.notify();
832 }
833
834 fn select_prev(&mut self, project: Option<&Model<Project>>, cx: &mut ViewContext<Editor>) {
835 if self.selected_item > 0 {
836 self.selected_item -= 1;
837 } else {
838 self.selected_item = self.matches.len() - 1;
839 }
840 self.scroll_handle.scroll_to_item(self.selected_item);
841 self.attempt_resolve_selected_completion_documentation(project, cx);
842 cx.notify();
843 }
844
845 fn select_next(&mut self, project: Option<&Model<Project>>, cx: &mut ViewContext<Editor>) {
846 if self.selected_item + 1 < self.matches.len() {
847 self.selected_item += 1;
848 } else {
849 self.selected_item = 0;
850 }
851 self.scroll_handle.scroll_to_item(self.selected_item);
852 self.attempt_resolve_selected_completion_documentation(project, cx);
853 cx.notify();
854 }
855
856 fn select_last(&mut self, project: Option<&Model<Project>>, cx: &mut ViewContext<Editor>) {
857 self.selected_item = self.matches.len() - 1;
858 self.scroll_handle.scroll_to_item(self.selected_item);
859 self.attempt_resolve_selected_completion_documentation(project, cx);
860 cx.notify();
861 }
862
863 fn pre_resolve_completion_documentation(
864 buffer: Model<Buffer>,
865 completions: Arc<RwLock<Box<[Completion]>>>,
866 matches: Arc<[StringMatch]>,
867 editor: &Editor,
868 cx: &mut ViewContext<Editor>,
869 ) -> Task<()> {
870 let settings = EditorSettings::get_global(cx);
871 if !settings.show_completion_documentation {
872 return Task::ready(());
873 }
874
875 let Some(provider) = editor.completion_provider.as_ref() else {
876 return Task::ready(());
877 };
878
879 let resolve_task = provider.resolve_completions(
880 buffer,
881 matches.iter().map(|m| m.candidate_id).collect(),
882 completions.clone(),
883 cx,
884 );
885
886 return cx.spawn(move |this, mut cx| async move {
887 if let Some(true) = resolve_task.await.log_err() {
888 this.update(&mut cx, |_, cx| cx.notify()).ok();
889 }
890 });
891 }
892
893 fn attempt_resolve_selected_completion_documentation(
894 &mut self,
895 project: Option<&Model<Project>>,
896 cx: &mut ViewContext<Editor>,
897 ) {
898 let settings = EditorSettings::get_global(cx);
899 if !settings.show_completion_documentation {
900 return;
901 }
902
903 let completion_index = self.matches[self.selected_item].candidate_id;
904 let Some(project) = project else {
905 return;
906 };
907
908 let resolve_task = project.update(cx, |project, cx| {
909 project.resolve_completions(
910 self.buffer.clone(),
911 vec![completion_index],
912 self.completions.clone(),
913 cx,
914 )
915 });
916
917 let delay_ms =
918 EditorSettings::get_global(cx).completion_documentation_secondary_query_debounce;
919 let delay = Duration::from_millis(delay_ms);
920
921 self.selected_completion_documentation_resolve_debounce
922 .lock()
923 .fire_new(delay, cx, |_, cx| {
924 cx.spawn(move |this, mut cx| async move {
925 if let Some(true) = resolve_task.await.log_err() {
926 this.update(&mut cx, |_, cx| cx.notify()).ok();
927 }
928 })
929 });
930 }
931
932 fn visible(&self) -> bool {
933 !self.matches.is_empty()
934 }
935
936 fn render(
937 &self,
938 style: &EditorStyle,
939 max_height: Pixels,
940 workspace: Option<WeakView<Workspace>>,
941 cx: &mut ViewContext<Editor>,
942 ) -> AnyElement {
943 let settings = EditorSettings::get_global(cx);
944 let show_completion_documentation = settings.show_completion_documentation;
945
946 let widest_completion_ix = self
947 .matches
948 .iter()
949 .enumerate()
950 .max_by_key(|(_, mat)| {
951 let completions = self.completions.read();
952 let completion = &completions[mat.candidate_id];
953 let documentation = &completion.documentation;
954
955 let mut len = completion.label.text.chars().count();
956 if let Some(Documentation::SingleLine(text)) = documentation {
957 if show_completion_documentation {
958 len += text.chars().count();
959 }
960 }
961
962 len
963 })
964 .map(|(ix, _)| ix);
965
966 let completions = self.completions.clone();
967 let matches = self.matches.clone();
968 let selected_item = self.selected_item;
969 let style = style.clone();
970
971 let multiline_docs = if show_completion_documentation {
972 let mat = &self.matches[selected_item];
973 let multiline_docs = match &self.completions.read()[mat.candidate_id].documentation {
974 Some(Documentation::MultiLinePlainText(text)) => {
975 Some(div().child(SharedString::from(text.clone())))
976 }
977 Some(Documentation::MultiLineMarkdown(parsed)) if !parsed.text.is_empty() => {
978 Some(div().child(render_parsed_markdown(
979 "completions_markdown",
980 parsed,
981 &style,
982 workspace,
983 cx,
984 )))
985 }
986 _ => None,
987 };
988 multiline_docs.map(|div| {
989 div.id("multiline_docs")
990 .max_h(max_height)
991 .flex_1()
992 .px_1p5()
993 .py_1()
994 .min_w(px(260.))
995 .max_w(px(640.))
996 .w(px(500.))
997 .overflow_y_scroll()
998 .occlude()
999 })
1000 } else {
1001 None
1002 };
1003
1004 let list = uniform_list(
1005 cx.view().clone(),
1006 "completions",
1007 matches.len(),
1008 move |_editor, range, cx| {
1009 let start_ix = range.start;
1010 let completions_guard = completions.read();
1011
1012 matches[range]
1013 .iter()
1014 .enumerate()
1015 .map(|(ix, mat)| {
1016 let item_ix = start_ix + ix;
1017 let candidate_id = mat.candidate_id;
1018 let completion = &completions_guard[candidate_id];
1019
1020 let documentation = if show_completion_documentation {
1021 &completion.documentation
1022 } else {
1023 &None
1024 };
1025
1026 let highlights = gpui::combine_highlights(
1027 mat.ranges().map(|range| (range, FontWeight::BOLD.into())),
1028 styled_runs_for_code_label(&completion.label, &style.syntax).map(
1029 |(range, mut highlight)| {
1030 // Ignore font weight for syntax highlighting, as we'll use it
1031 // for fuzzy matches.
1032 highlight.font_weight = None;
1033
1034 if completion.lsp_completion.deprecated.unwrap_or(false) {
1035 highlight.strikethrough = Some(StrikethroughStyle {
1036 thickness: 1.0.into(),
1037 ..Default::default()
1038 });
1039 highlight.color = Some(cx.theme().colors().text_muted);
1040 }
1041
1042 (range, highlight)
1043 },
1044 ),
1045 );
1046 let completion_label = StyledText::new(completion.label.text.clone())
1047 .with_highlights(&style.text, highlights);
1048 let documentation_label =
1049 if let Some(Documentation::SingleLine(text)) = documentation {
1050 if text.trim().is_empty() {
1051 None
1052 } else {
1053 Some(
1054 h_flex().ml_4().child(
1055 Label::new(text.clone())
1056 .size(LabelSize::Small)
1057 .color(Color::Muted),
1058 ),
1059 )
1060 }
1061 } else {
1062 None
1063 };
1064
1065 div().min_w(px(220.)).max_w(px(540.)).child(
1066 ListItem::new(mat.candidate_id)
1067 .inset(true)
1068 .selected(item_ix == selected_item)
1069 .on_click(cx.listener(move |editor, _event, cx| {
1070 cx.stop_propagation();
1071 if let Some(task) = editor.confirm_completion(
1072 &ConfirmCompletion {
1073 item_ix: Some(item_ix),
1074 },
1075 cx,
1076 ) {
1077 task.detach_and_log_err(cx)
1078 }
1079 }))
1080 .child(h_flex().overflow_hidden().child(completion_label))
1081 .end_slot::<Div>(documentation_label),
1082 )
1083 })
1084 .collect()
1085 },
1086 )
1087 .occlude()
1088 .max_h(max_height)
1089 .track_scroll(self.scroll_handle.clone())
1090 .with_width_from_item(widest_completion_ix);
1091
1092 Popover::new()
1093 .child(list)
1094 .when_some(multiline_docs, |popover, multiline_docs| {
1095 popover.aside(multiline_docs)
1096 })
1097 .into_any_element()
1098 }
1099
1100 pub async fn filter(&mut self, query: Option<&str>, executor: BackgroundExecutor) {
1101 let mut matches = if let Some(query) = query {
1102 fuzzy::match_strings(
1103 &self.match_candidates,
1104 query,
1105 query.chars().any(|c| c.is_uppercase()),
1106 100,
1107 &Default::default(),
1108 executor,
1109 )
1110 .await
1111 } else {
1112 self.match_candidates
1113 .iter()
1114 .enumerate()
1115 .map(|(candidate_id, candidate)| StringMatch {
1116 candidate_id,
1117 score: Default::default(),
1118 positions: Default::default(),
1119 string: candidate.string.clone(),
1120 })
1121 .collect()
1122 };
1123
1124 // Remove all candidates where the query's start does not match the start of any word in the candidate
1125 if let Some(query) = query {
1126 if let Some(query_start) = query.chars().next() {
1127 matches.retain(|string_match| {
1128 split_words(&string_match.string).any(|word| {
1129 // Check that the first codepoint of the word as lowercase matches the first
1130 // codepoint of the query as lowercase
1131 word.chars()
1132 .flat_map(|codepoint| codepoint.to_lowercase())
1133 .zip(query_start.to_lowercase())
1134 .all(|(word_cp, query_cp)| word_cp == query_cp)
1135 })
1136 });
1137 }
1138 }
1139
1140 let completions = self.completions.read();
1141 matches.sort_unstable_by_key(|mat| {
1142 // We do want to strike a balance here between what the language server tells us
1143 // to sort by (the sort_text) and what are "obvious" good matches (i.e. when you type
1144 // `Creat` and there is a local variable called `CreateComponent`).
1145 // So what we do is: we bucket all matches into two buckets
1146 // - Strong matches
1147 // - Weak matches
1148 // Strong matches are the ones with a high fuzzy-matcher score (the "obvious" matches)
1149 // and the Weak matches are the rest.
1150 //
1151 // For the strong matches, we sort by the language-servers score first and for the weak
1152 // matches, we prefer our fuzzy finder first.
1153 //
1154 // The thinking behind that: it's useless to take the sort_text the language-server gives
1155 // us into account when it's obviously a bad match.
1156
1157 #[derive(PartialEq, Eq, PartialOrd, Ord)]
1158 enum MatchScore<'a> {
1159 Strong {
1160 sort_text: Option<&'a str>,
1161 score: Reverse<OrderedFloat<f64>>,
1162 sort_key: (usize, &'a str),
1163 },
1164 Weak {
1165 score: Reverse<OrderedFloat<f64>>,
1166 sort_text: Option<&'a str>,
1167 sort_key: (usize, &'a str),
1168 },
1169 }
1170
1171 let completion = &completions[mat.candidate_id];
1172 let sort_key = completion.sort_key();
1173 let sort_text = completion.lsp_completion.sort_text.as_deref();
1174 let score = Reverse(OrderedFloat(mat.score));
1175
1176 if mat.score >= 0.2 {
1177 MatchScore::Strong {
1178 sort_text,
1179 score,
1180 sort_key,
1181 }
1182 } else {
1183 MatchScore::Weak {
1184 score,
1185 sort_text,
1186 sort_key,
1187 }
1188 }
1189 });
1190
1191 for mat in &mut matches {
1192 let completion = &completions[mat.candidate_id];
1193 mat.string.clone_from(&completion.label.text);
1194 for position in &mut mat.positions {
1195 *position += completion.label.filter_range.start;
1196 }
1197 }
1198 drop(completions);
1199
1200 self.matches = matches.into();
1201 self.selected_item = 0;
1202 }
1203}
1204
1205#[derive(Clone)]
1206struct CodeActionContents {
1207 tasks: Option<Arc<ResolvedTasks>>,
1208 actions: Option<Arc<[CodeAction]>>,
1209}
1210
1211impl CodeActionContents {
1212 fn len(&self) -> usize {
1213 match (&self.tasks, &self.actions) {
1214 (Some(tasks), Some(actions)) => actions.len() + tasks.templates.len(),
1215 (Some(tasks), None) => tasks.templates.len(),
1216 (None, Some(actions)) => actions.len(),
1217 (None, None) => 0,
1218 }
1219 }
1220
1221 fn is_empty(&self) -> bool {
1222 match (&self.tasks, &self.actions) {
1223 (Some(tasks), Some(actions)) => actions.is_empty() && tasks.templates.is_empty(),
1224 (Some(tasks), None) => tasks.templates.is_empty(),
1225 (None, Some(actions)) => actions.is_empty(),
1226 (None, None) => true,
1227 }
1228 }
1229
1230 fn iter(&self) -> impl Iterator<Item = CodeActionsItem> + '_ {
1231 self.tasks
1232 .iter()
1233 .flat_map(|tasks| {
1234 tasks
1235 .templates
1236 .iter()
1237 .map(|(kind, task)| CodeActionsItem::Task(kind.clone(), task.clone()))
1238 })
1239 .chain(self.actions.iter().flat_map(|actions| {
1240 actions
1241 .iter()
1242 .map(|action| CodeActionsItem::CodeAction(action.clone()))
1243 }))
1244 }
1245 fn get(&self, index: usize) -> Option<CodeActionsItem> {
1246 match (&self.tasks, &self.actions) {
1247 (Some(tasks), Some(actions)) => {
1248 if index < tasks.templates.len() {
1249 tasks
1250 .templates
1251 .get(index)
1252 .cloned()
1253 .map(|(kind, task)| CodeActionsItem::Task(kind, task))
1254 } else {
1255 actions
1256 .get(index - tasks.templates.len())
1257 .cloned()
1258 .map(CodeActionsItem::CodeAction)
1259 }
1260 }
1261 (Some(tasks), None) => tasks
1262 .templates
1263 .get(index)
1264 .cloned()
1265 .map(|(kind, task)| CodeActionsItem::Task(kind, task)),
1266 (None, Some(actions)) => actions.get(index).cloned().map(CodeActionsItem::CodeAction),
1267 (None, None) => None,
1268 }
1269 }
1270}
1271
1272#[allow(clippy::large_enum_variant)]
1273#[derive(Clone)]
1274enum CodeActionsItem {
1275 Task(TaskSourceKind, ResolvedTask),
1276 CodeAction(CodeAction),
1277}
1278
1279impl CodeActionsItem {
1280 fn as_task(&self) -> Option<&ResolvedTask> {
1281 let Self::Task(_, task) = self else {
1282 return None;
1283 };
1284 Some(task)
1285 }
1286 fn as_code_action(&self) -> Option<&CodeAction> {
1287 let Self::CodeAction(action) = self else {
1288 return None;
1289 };
1290 Some(action)
1291 }
1292 fn label(&self) -> String {
1293 match self {
1294 Self::CodeAction(action) => action.lsp_action.title.clone(),
1295 Self::Task(_, task) => task.resolved_label.clone(),
1296 }
1297 }
1298}
1299
1300struct CodeActionsMenu {
1301 actions: CodeActionContents,
1302 buffer: Model<Buffer>,
1303 selected_item: usize,
1304 scroll_handle: UniformListScrollHandle,
1305 deployed_from_indicator: Option<DisplayRow>,
1306}
1307
1308impl CodeActionsMenu {
1309 fn select_first(&mut self, cx: &mut ViewContext<Editor>) {
1310 self.selected_item = 0;
1311 self.scroll_handle.scroll_to_item(self.selected_item);
1312 cx.notify()
1313 }
1314
1315 fn select_prev(&mut self, cx: &mut ViewContext<Editor>) {
1316 if self.selected_item > 0 {
1317 self.selected_item -= 1;
1318 } else {
1319 self.selected_item = self.actions.len() - 1;
1320 }
1321 self.scroll_handle.scroll_to_item(self.selected_item);
1322 cx.notify();
1323 }
1324
1325 fn select_next(&mut self, cx: &mut ViewContext<Editor>) {
1326 if self.selected_item + 1 < self.actions.len() {
1327 self.selected_item += 1;
1328 } else {
1329 self.selected_item = 0;
1330 }
1331 self.scroll_handle.scroll_to_item(self.selected_item);
1332 cx.notify();
1333 }
1334
1335 fn select_last(&mut self, cx: &mut ViewContext<Editor>) {
1336 self.selected_item = self.actions.len() - 1;
1337 self.scroll_handle.scroll_to_item(self.selected_item);
1338 cx.notify()
1339 }
1340
1341 fn visible(&self) -> bool {
1342 !self.actions.is_empty()
1343 }
1344
1345 fn render(
1346 &self,
1347 cursor_position: DisplayPoint,
1348 _style: &EditorStyle,
1349 max_height: Pixels,
1350 cx: &mut ViewContext<Editor>,
1351 ) -> (ContextMenuOrigin, AnyElement) {
1352 let actions = self.actions.clone();
1353 let selected_item = self.selected_item;
1354 let element = uniform_list(
1355 cx.view().clone(),
1356 "code_actions_menu",
1357 self.actions.len(),
1358 move |_this, range, cx| {
1359 actions
1360 .iter()
1361 .skip(range.start)
1362 .take(range.end - range.start)
1363 .enumerate()
1364 .map(|(ix, action)| {
1365 let item_ix = range.start + ix;
1366 let selected = selected_item == item_ix;
1367 let colors = cx.theme().colors();
1368 div()
1369 .px_2()
1370 .text_color(colors.text)
1371 .when(selected, |style| {
1372 style
1373 .bg(colors.element_active)
1374 .text_color(colors.text_accent)
1375 })
1376 .hover(|style| {
1377 style
1378 .bg(colors.element_hover)
1379 .text_color(colors.text_accent)
1380 })
1381 .whitespace_nowrap()
1382 .when_some(action.as_code_action(), |this, action| {
1383 this.on_mouse_down(
1384 MouseButton::Left,
1385 cx.listener(move |editor, _, cx| {
1386 cx.stop_propagation();
1387 if let Some(task) = editor.confirm_code_action(
1388 &ConfirmCodeAction {
1389 item_ix: Some(item_ix),
1390 },
1391 cx,
1392 ) {
1393 task.detach_and_log_err(cx)
1394 }
1395 }),
1396 )
1397 // TASK: It would be good to make lsp_action.title a SharedString to avoid allocating here.
1398 .child(SharedString::from(action.lsp_action.title.clone()))
1399 })
1400 .when_some(action.as_task(), |this, task| {
1401 this.on_mouse_down(
1402 MouseButton::Left,
1403 cx.listener(move |editor, _, cx| {
1404 cx.stop_propagation();
1405 if let Some(task) = editor.confirm_code_action(
1406 &ConfirmCodeAction {
1407 item_ix: Some(item_ix),
1408 },
1409 cx,
1410 ) {
1411 task.detach_and_log_err(cx)
1412 }
1413 }),
1414 )
1415 .child(SharedString::from(task.resolved_label.clone()))
1416 })
1417 })
1418 .collect()
1419 },
1420 )
1421 .elevation_1(cx)
1422 .px_2()
1423 .py_1()
1424 .max_h(max_height)
1425 .occlude()
1426 .track_scroll(self.scroll_handle.clone())
1427 .with_width_from_item(
1428 self.actions
1429 .iter()
1430 .enumerate()
1431 .max_by_key(|(_, action)| match action {
1432 CodeActionsItem::Task(_, task) => task.resolved_label.chars().count(),
1433 CodeActionsItem::CodeAction(action) => action.lsp_action.title.chars().count(),
1434 })
1435 .map(|(ix, _)| ix),
1436 )
1437 .into_any_element();
1438
1439 let cursor_position = if let Some(row) = self.deployed_from_indicator {
1440 ContextMenuOrigin::GutterIndicator(row)
1441 } else {
1442 ContextMenuOrigin::EditorPoint(cursor_position)
1443 };
1444
1445 (cursor_position, element)
1446 }
1447}
1448
1449#[derive(Debug)]
1450struct ActiveDiagnosticGroup {
1451 primary_range: Range<Anchor>,
1452 primary_message: String,
1453 group_id: usize,
1454 blocks: HashMap<BlockId, Diagnostic>,
1455 is_valid: bool,
1456}
1457
1458#[derive(Serialize, Deserialize)]
1459pub struct ClipboardSelection {
1460 pub len: usize,
1461 pub is_entire_line: bool,
1462 pub first_line_indent: u32,
1463}
1464
1465#[derive(Debug)]
1466pub(crate) struct NavigationData {
1467 cursor_anchor: Anchor,
1468 cursor_position: Point,
1469 scroll_anchor: ScrollAnchor,
1470 scroll_top_row: u32,
1471}
1472
1473enum GotoDefinitionKind {
1474 Symbol,
1475 Type,
1476 Implementation,
1477}
1478
1479#[derive(Debug, Clone)]
1480enum InlayHintRefreshReason {
1481 Toggle(bool),
1482 SettingsChange(InlayHintSettings),
1483 NewLinesShown,
1484 BufferEdited(HashSet<Arc<Language>>),
1485 RefreshRequested,
1486 ExcerptsRemoved(Vec<ExcerptId>),
1487}
1488
1489impl InlayHintRefreshReason {
1490 fn description(&self) -> &'static str {
1491 match self {
1492 Self::Toggle(_) => "toggle",
1493 Self::SettingsChange(_) => "settings change",
1494 Self::NewLinesShown => "new lines shown",
1495 Self::BufferEdited(_) => "buffer edited",
1496 Self::RefreshRequested => "refresh requested",
1497 Self::ExcerptsRemoved(_) => "excerpts removed",
1498 }
1499 }
1500}
1501
1502impl Editor {
1503 pub fn single_line(cx: &mut ViewContext<Self>) -> Self {
1504 let buffer = cx.new_model(|cx| Buffer::local("", cx));
1505 let buffer = cx.new_model(|cx| MultiBuffer::singleton(buffer, cx));
1506 Self::new(EditorMode::SingleLine, buffer, None, cx)
1507 }
1508
1509 pub fn multi_line(cx: &mut ViewContext<Self>) -> Self {
1510 let buffer = cx.new_model(|cx| Buffer::local("", cx));
1511 let buffer = cx.new_model(|cx| MultiBuffer::singleton(buffer, cx));
1512 Self::new(EditorMode::Full, buffer, None, cx)
1513 }
1514
1515 pub fn auto_height(max_lines: usize, cx: &mut ViewContext<Self>) -> Self {
1516 let buffer = cx.new_model(|cx| Buffer::local("", cx));
1517 let buffer = cx.new_model(|cx| MultiBuffer::singleton(buffer, cx));
1518 Self::new(EditorMode::AutoHeight { max_lines }, buffer, None, cx)
1519 }
1520
1521 pub fn for_buffer(
1522 buffer: Model<Buffer>,
1523 project: Option<Model<Project>>,
1524 cx: &mut ViewContext<Self>,
1525 ) -> Self {
1526 let buffer = cx.new_model(|cx| MultiBuffer::singleton(buffer, cx));
1527 Self::new(EditorMode::Full, buffer, project, cx)
1528 }
1529
1530 pub fn for_multibuffer(
1531 buffer: Model<MultiBuffer>,
1532 project: Option<Model<Project>>,
1533 cx: &mut ViewContext<Self>,
1534 ) -> Self {
1535 Self::new(EditorMode::Full, buffer, project, cx)
1536 }
1537
1538 pub fn clone(&self, cx: &mut ViewContext<Self>) -> Self {
1539 let mut clone = Self::new(self.mode, self.buffer.clone(), self.project.clone(), cx);
1540 self.display_map.update(cx, |display_map, cx| {
1541 let snapshot = display_map.snapshot(cx);
1542 clone.display_map.update(cx, |display_map, cx| {
1543 display_map.set_state(&snapshot, cx);
1544 });
1545 });
1546 clone.selections.clone_state(&self.selections);
1547 clone.scroll_manager.clone_state(&self.scroll_manager);
1548 clone.searchable = self.searchable;
1549 clone
1550 }
1551
1552 fn new(
1553 mode: EditorMode,
1554 buffer: Model<MultiBuffer>,
1555 project: Option<Model<Project>>,
1556 cx: &mut ViewContext<Self>,
1557 ) -> Self {
1558 let style = cx.text_style();
1559 let font_size = style.font_size.to_pixels(cx.rem_size());
1560 let display_map = cx.new_model(|cx| {
1561 DisplayMap::new(buffer.clone(), style.font(), font_size, None, 2, 1, cx)
1562 });
1563
1564 let selections = SelectionsCollection::new(display_map.clone(), buffer.clone());
1565
1566 let blink_manager = cx.new_model(|cx| BlinkManager::new(CURSOR_BLINK_INTERVAL, cx));
1567
1568 let soft_wrap_mode_override =
1569 (mode == EditorMode::SingleLine).then(|| language_settings::SoftWrap::PreferLine);
1570
1571 let mut project_subscriptions = Vec::new();
1572 if mode == EditorMode::Full {
1573 if let Some(project) = project.as_ref() {
1574 if buffer.read(cx).is_singleton() {
1575 project_subscriptions.push(cx.observe(project, |_, _, cx| {
1576 cx.emit(EditorEvent::TitleChanged);
1577 }));
1578 }
1579 project_subscriptions.push(cx.subscribe(project, |editor, _, event, cx| {
1580 if let project::Event::RefreshInlayHints = event {
1581 editor.refresh_inlay_hints(InlayHintRefreshReason::RefreshRequested, cx);
1582 };
1583 }));
1584 }
1585 }
1586
1587 let inlay_hint_settings = inlay_hint_settings(
1588 selections.newest_anchor().head(),
1589 &buffer.read(cx).snapshot(cx),
1590 cx,
1591 );
1592
1593 let focus_handle = cx.focus_handle();
1594 cx.on_focus(&focus_handle, Self::handle_focus).detach();
1595 cx.on_blur(&focus_handle, Self::handle_blur).detach();
1596
1597 let mut this = Self {
1598 focus_handle,
1599 buffer: buffer.clone(),
1600 display_map: display_map.clone(),
1601 selections,
1602 scroll_manager: ScrollManager::new(cx),
1603 columnar_selection_tail: None,
1604 add_selections_state: None,
1605 select_next_state: None,
1606 select_prev_state: None,
1607 selection_history: Default::default(),
1608 autoclose_regions: Default::default(),
1609 snippet_stack: Default::default(),
1610 select_larger_syntax_node_stack: Vec::new(),
1611 ime_transaction: Default::default(),
1612 active_diagnostics: None,
1613 soft_wrap_mode_override,
1614 completion_provider: project.clone().map(|project| Box::new(project) as _),
1615 collaboration_hub: project.clone().map(|project| Box::new(project) as _),
1616 project,
1617 blink_manager: blink_manager.clone(),
1618 show_local_selections: true,
1619 mode,
1620 show_breadcrumbs: EditorSettings::get_global(cx).toolbar.breadcrumbs,
1621 show_gutter: mode == EditorMode::Full,
1622 show_wrap_guides: None,
1623 placeholder_text: None,
1624 highlight_order: 0,
1625 highlighted_rows: HashMap::default(),
1626 background_highlights: Default::default(),
1627 scrollbar_marker_state: ScrollbarMarkerState::default(),
1628 nav_history: None,
1629 context_menu: RwLock::new(None),
1630 mouse_context_menu: None,
1631 completion_tasks: Default::default(),
1632 find_all_references_task_sources: Vec::new(),
1633 next_completion_id: 0,
1634 completion_documentation_pre_resolve_debounce: DebouncedDelay::new(),
1635 next_inlay_id: 0,
1636 available_code_actions: Default::default(),
1637 code_actions_task: Default::default(),
1638 document_highlights_task: Default::default(),
1639 pending_rename: Default::default(),
1640 searchable: true,
1641 cursor_shape: Default::default(),
1642 current_line_highlight: EditorSettings::get_global(cx).current_line_highlight,
1643 autoindent_mode: Some(AutoindentMode::EachLine),
1644 collapse_matches: false,
1645 workspace: None,
1646 keymap_context_layers: Default::default(),
1647 input_enabled: true,
1648 use_modal_editing: mode == EditorMode::Full,
1649 read_only: false,
1650 use_autoclose: true,
1651 auto_replace_emoji_shortcode: false,
1652 leader_peer_id: None,
1653 remote_id: None,
1654 hover_state: Default::default(),
1655 hovered_link_state: Default::default(),
1656 inline_completion_provider: None,
1657 active_inline_completion: None,
1658 inlay_hint_cache: InlayHintCache::new(inlay_hint_settings),
1659 expanded_hunks: ExpandedHunks::default(),
1660 gutter_hovered: false,
1661 pixel_position_of_newest_cursor: None,
1662 last_bounds: None,
1663 expect_bounds_change: None,
1664 gutter_dimensions: GutterDimensions::default(),
1665 style: None,
1666 show_cursor_names: false,
1667 hovered_cursors: Default::default(),
1668 editor_actions: Default::default(),
1669 vim_replace_map: Default::default(),
1670 show_inline_completions: mode == EditorMode::Full,
1671 custom_context_menu: None,
1672 show_git_blame_gutter: false,
1673 show_git_blame_inline: false,
1674 show_git_blame_inline_delay_task: None,
1675 git_blame_inline_enabled: ProjectSettings::get_global(cx).git.inline_blame_enabled(),
1676 blame: None,
1677 blame_subscription: None,
1678 tasks: Default::default(),
1679 _subscriptions: vec![
1680 cx.observe(&buffer, Self::on_buffer_changed),
1681 cx.subscribe(&buffer, Self::on_buffer_event),
1682 cx.observe(&display_map, Self::on_display_map_changed),
1683 cx.observe(&blink_manager, |_, _, cx| cx.notify()),
1684 cx.observe_global::<SettingsStore>(Self::settings_changed),
1685 observe_buffer_font_size_adjustment(cx, |_, cx| cx.notify()),
1686 cx.observe_window_activation(|editor, cx| {
1687 let active = cx.is_window_active();
1688 editor.blink_manager.update(cx, |blink_manager, cx| {
1689 if active {
1690 blink_manager.enable(cx);
1691 } else {
1692 blink_manager.show_cursor(cx);
1693 blink_manager.disable(cx);
1694 }
1695 });
1696 }),
1697 ],
1698 tasks_update_task: None,
1699 };
1700 this.tasks_update_task = Some(this.refresh_runnables(cx));
1701 this._subscriptions.extend(project_subscriptions);
1702
1703 this.end_selection(cx);
1704 this.scroll_manager.show_scrollbar(cx);
1705
1706 if mode == EditorMode::Full {
1707 let should_auto_hide_scrollbars = cx.should_auto_hide_scrollbars();
1708 cx.set_global(ScrollbarAutoHide(should_auto_hide_scrollbars));
1709
1710 if this.git_blame_inline_enabled {
1711 this.git_blame_inline_enabled = true;
1712 this.start_git_blame_inline(false, cx);
1713 }
1714 }
1715
1716 this.report_editor_event("open", None, cx);
1717 this
1718 }
1719
1720 fn key_context(&self, cx: &AppContext) -> KeyContext {
1721 let mut key_context = KeyContext::new_with_defaults();
1722 key_context.add("Editor");
1723 let mode = match self.mode {
1724 EditorMode::SingleLine => "single_line",
1725 EditorMode::AutoHeight { .. } => "auto_height",
1726 EditorMode::Full => "full",
1727 };
1728 key_context.set("mode", mode);
1729 if self.pending_rename.is_some() {
1730 key_context.add("renaming");
1731 }
1732 if self.context_menu_visible() {
1733 match self.context_menu.read().as_ref() {
1734 Some(ContextMenu::Completions(_)) => {
1735 key_context.add("menu");
1736 key_context.add("showing_completions")
1737 }
1738 Some(ContextMenu::CodeActions(_)) => {
1739 key_context.add("menu");
1740 key_context.add("showing_code_actions")
1741 }
1742 None => {}
1743 }
1744 }
1745
1746 for layer in self.keymap_context_layers.values() {
1747 key_context.extend(layer);
1748 }
1749
1750 if let Some(extension) = self
1751 .buffer
1752 .read(cx)
1753 .as_singleton()
1754 .and_then(|buffer| buffer.read(cx).file()?.path().extension()?.to_str())
1755 {
1756 key_context.set("extension", extension.to_string());
1757 }
1758
1759 if self.has_active_inline_completion(cx) {
1760 key_context.add("copilot_suggestion");
1761 key_context.add("inline_completion");
1762 }
1763
1764 key_context
1765 }
1766
1767 pub fn new_file(
1768 workspace: &mut Workspace,
1769 _: &workspace::NewFile,
1770 cx: &mut ViewContext<Workspace>,
1771 ) {
1772 let project = workspace.project().clone();
1773 let create = project.update(cx, |project, cx| project.create_buffer(cx));
1774
1775 cx.spawn(|workspace, mut cx| async move {
1776 let buffer = create.await?;
1777 workspace.update(&mut cx, |workspace, cx| {
1778 workspace.add_item_to_active_pane(
1779 Box::new(
1780 cx.new_view(|cx| Editor::for_buffer(buffer, Some(project.clone()), cx)),
1781 ),
1782 None,
1783 cx,
1784 )
1785 })
1786 })
1787 .detach_and_prompt_err("Failed to create buffer", cx, |e, _| match e.error_code() {
1788 ErrorCode::RemoteUpgradeRequired => Some(format!(
1789 "The remote instance of Zed does not support this yet. It must be upgraded to {}",
1790 e.error_tag("required").unwrap_or("the latest version")
1791 )),
1792 _ => None,
1793 });
1794 }
1795
1796 pub fn new_file_in_direction(
1797 workspace: &mut Workspace,
1798 action: &workspace::NewFileInDirection,
1799 cx: &mut ViewContext<Workspace>,
1800 ) {
1801 let project = workspace.project().clone();
1802 let create = project.update(cx, |project, cx| project.create_buffer(cx));
1803 let direction = action.0;
1804
1805 cx.spawn(|workspace, mut cx| async move {
1806 let buffer = create.await?;
1807 workspace.update(&mut cx, move |workspace, cx| {
1808 workspace.split_item(
1809 direction,
1810 Box::new(
1811 cx.new_view(|cx| Editor::for_buffer(buffer, Some(project.clone()), cx)),
1812 ),
1813 cx,
1814 )
1815 })?;
1816 anyhow::Ok(())
1817 })
1818 .detach_and_prompt_err("Failed to create buffer", cx, |e, _| match e.error_code() {
1819 ErrorCode::RemoteUpgradeRequired => Some(format!(
1820 "The remote instance of Zed does not support this yet. It must be upgraded to {}",
1821 e.error_tag("required").unwrap_or("the latest version")
1822 )),
1823 _ => None,
1824 });
1825 }
1826
1827 pub fn replica_id(&self, cx: &AppContext) -> ReplicaId {
1828 self.buffer.read(cx).replica_id()
1829 }
1830
1831 pub fn leader_peer_id(&self) -> Option<PeerId> {
1832 self.leader_peer_id
1833 }
1834
1835 pub fn buffer(&self) -> &Model<MultiBuffer> {
1836 &self.buffer
1837 }
1838
1839 pub fn workspace(&self) -> Option<View<Workspace>> {
1840 self.workspace.as_ref()?.0.upgrade()
1841 }
1842
1843 pub fn title<'a>(&self, cx: &'a AppContext) -> Cow<'a, str> {
1844 self.buffer().read(cx).title(cx)
1845 }
1846
1847 pub fn snapshot(&mut self, cx: &mut WindowContext) -> EditorSnapshot {
1848 EditorSnapshot {
1849 mode: self.mode,
1850 show_gutter: self.show_gutter,
1851 render_git_blame_gutter: self.render_git_blame_gutter(cx),
1852 display_snapshot: self.display_map.update(cx, |map, cx| map.snapshot(cx)),
1853 scroll_anchor: self.scroll_manager.anchor(),
1854 ongoing_scroll: self.scroll_manager.ongoing_scroll(),
1855 placeholder_text: self.placeholder_text.clone(),
1856 is_focused: self.focus_handle.is_focused(cx),
1857 current_line_highlight: self.current_line_highlight,
1858 }
1859 }
1860
1861 pub fn language_at<T: ToOffset>(&self, point: T, cx: &AppContext) -> Option<Arc<Language>> {
1862 self.buffer.read(cx).language_at(point, cx)
1863 }
1864
1865 pub fn file_at<T: ToOffset>(
1866 &self,
1867 point: T,
1868 cx: &AppContext,
1869 ) -> Option<Arc<dyn language::File>> {
1870 self.buffer.read(cx).read(cx).file_at(point).cloned()
1871 }
1872
1873 pub fn active_excerpt(
1874 &self,
1875 cx: &AppContext,
1876 ) -> Option<(ExcerptId, Model<Buffer>, Range<text::Anchor>)> {
1877 self.buffer
1878 .read(cx)
1879 .excerpt_containing(self.selections.newest_anchor().head(), cx)
1880 }
1881
1882 pub fn mode(&self) -> EditorMode {
1883 self.mode
1884 }
1885
1886 pub fn collaboration_hub(&self) -> Option<&dyn CollaborationHub> {
1887 self.collaboration_hub.as_deref()
1888 }
1889
1890 pub fn set_collaboration_hub(&mut self, hub: Box<dyn CollaborationHub>) {
1891 self.collaboration_hub = Some(hub);
1892 }
1893
1894 pub fn set_custom_context_menu(
1895 &mut self,
1896 f: impl 'static
1897 + Fn(&mut Self, DisplayPoint, &mut ViewContext<Self>) -> Option<View<ui::ContextMenu>>,
1898 ) {
1899 self.custom_context_menu = Some(Box::new(f))
1900 }
1901
1902 pub fn set_completion_provider(&mut self, hub: Box<dyn CompletionProvider>) {
1903 self.completion_provider = Some(hub);
1904 }
1905
1906 pub fn set_inline_completion_provider<T>(
1907 &mut self,
1908 provider: Option<Model<T>>,
1909 cx: &mut ViewContext<Self>,
1910 ) where
1911 T: InlineCompletionProvider,
1912 {
1913 self.inline_completion_provider =
1914 provider.map(|provider| RegisteredInlineCompletionProvider {
1915 _subscription: cx.observe(&provider, |this, _, cx| {
1916 if this.focus_handle.is_focused(cx) {
1917 this.update_visible_inline_completion(cx);
1918 }
1919 }),
1920 provider: Arc::new(provider),
1921 });
1922 self.refresh_inline_completion(false, cx);
1923 }
1924
1925 pub fn placeholder_text(&self, _cx: &mut WindowContext) -> Option<&str> {
1926 self.placeholder_text.as_deref()
1927 }
1928
1929 pub fn set_placeholder_text(
1930 &mut self,
1931 placeholder_text: impl Into<Arc<str>>,
1932 cx: &mut ViewContext<Self>,
1933 ) {
1934 let placeholder_text = Some(placeholder_text.into());
1935 if self.placeholder_text != placeholder_text {
1936 self.placeholder_text = placeholder_text;
1937 cx.notify();
1938 }
1939 }
1940
1941 pub fn set_cursor_shape(&mut self, cursor_shape: CursorShape, cx: &mut ViewContext<Self>) {
1942 self.cursor_shape = cursor_shape;
1943 cx.notify();
1944 }
1945
1946 pub fn set_current_line_highlight(
1947 &mut self,
1948 current_line_highlight: CurrentLineHighlight,
1949 cx: &mut ViewContext<Self>,
1950 ) {
1951 self.current_line_highlight = current_line_highlight;
1952 cx.notify();
1953 }
1954
1955 pub fn set_collapse_matches(&mut self, collapse_matches: bool) {
1956 self.collapse_matches = collapse_matches;
1957 }
1958
1959 pub fn range_for_match<T: std::marker::Copy>(&self, range: &Range<T>) -> Range<T> {
1960 if self.collapse_matches {
1961 return range.start..range.start;
1962 }
1963 range.clone()
1964 }
1965
1966 pub fn set_clip_at_line_ends(&mut self, clip: bool, cx: &mut ViewContext<Self>) {
1967 if self.display_map.read(cx).clip_at_line_ends != clip {
1968 self.display_map
1969 .update(cx, |map, _| map.clip_at_line_ends = clip);
1970 }
1971 }
1972
1973 pub fn set_keymap_context_layer<Tag: 'static>(
1974 &mut self,
1975 context: KeyContext,
1976 cx: &mut ViewContext<Self>,
1977 ) {
1978 self.keymap_context_layers
1979 .insert(TypeId::of::<Tag>(), context);
1980 cx.notify();
1981 }
1982
1983 pub fn remove_keymap_context_layer<Tag: 'static>(&mut self, cx: &mut ViewContext<Self>) {
1984 self.keymap_context_layers.remove(&TypeId::of::<Tag>());
1985 cx.notify();
1986 }
1987
1988 pub fn set_input_enabled(&mut self, input_enabled: bool) {
1989 self.input_enabled = input_enabled;
1990 }
1991
1992 pub fn set_autoindent(&mut self, autoindent: bool) {
1993 if autoindent {
1994 self.autoindent_mode = Some(AutoindentMode::EachLine);
1995 } else {
1996 self.autoindent_mode = None;
1997 }
1998 }
1999
2000 pub fn read_only(&self, cx: &AppContext) -> bool {
2001 self.read_only || self.buffer.read(cx).read_only()
2002 }
2003
2004 pub fn set_read_only(&mut self, read_only: bool) {
2005 self.read_only = read_only;
2006 }
2007
2008 pub fn set_use_autoclose(&mut self, autoclose: bool) {
2009 self.use_autoclose = autoclose;
2010 }
2011
2012 pub fn set_auto_replace_emoji_shortcode(&mut self, auto_replace: bool) {
2013 self.auto_replace_emoji_shortcode = auto_replace;
2014 }
2015
2016 pub fn set_show_inline_completions(&mut self, show_inline_completions: bool) {
2017 self.show_inline_completions = show_inline_completions;
2018 }
2019
2020 pub fn set_use_modal_editing(&mut self, to: bool) {
2021 self.use_modal_editing = to;
2022 }
2023
2024 pub fn use_modal_editing(&self) -> bool {
2025 self.use_modal_editing
2026 }
2027
2028 fn selections_did_change(
2029 &mut self,
2030 local: bool,
2031 old_cursor_position: &Anchor,
2032 cx: &mut ViewContext<Self>,
2033 ) {
2034 // Copy selections to primary selection buffer
2035 #[cfg(target_os = "linux")]
2036 if local {
2037 let selections = self.selections.all::<usize>(cx);
2038 let buffer_handle = self.buffer.read(cx).read(cx);
2039
2040 let mut text = String::new();
2041 for (index, selection) in selections.iter().enumerate() {
2042 let text_for_selection = buffer_handle
2043 .text_for_range(selection.start..selection.end)
2044 .collect::<String>();
2045
2046 text.push_str(&text_for_selection);
2047 if index != selections.len() - 1 {
2048 text.push('\n');
2049 }
2050 }
2051
2052 if !text.is_empty() {
2053 cx.write_to_primary(ClipboardItem::new(text));
2054 }
2055 }
2056
2057 if self.focus_handle.is_focused(cx) && self.leader_peer_id.is_none() {
2058 self.buffer.update(cx, |buffer, cx| {
2059 buffer.set_active_selections(
2060 &self.selections.disjoint_anchors(),
2061 self.selections.line_mode,
2062 self.cursor_shape,
2063 cx,
2064 )
2065 });
2066 }
2067
2068 let display_map = self
2069 .display_map
2070 .update(cx, |display_map, cx| display_map.snapshot(cx));
2071 let buffer = &display_map.buffer_snapshot;
2072 self.add_selections_state = None;
2073 self.select_next_state = None;
2074 self.select_prev_state = None;
2075 self.select_larger_syntax_node_stack.clear();
2076 self.invalidate_autoclose_regions(&self.selections.disjoint_anchors(), buffer);
2077 self.snippet_stack
2078 .invalidate(&self.selections.disjoint_anchors(), buffer);
2079 self.take_rename(false, cx);
2080
2081 let new_cursor_position = self.selections.newest_anchor().head();
2082
2083 self.push_to_nav_history(
2084 *old_cursor_position,
2085 Some(new_cursor_position.to_point(buffer)),
2086 cx,
2087 );
2088
2089 if local {
2090 let new_cursor_position = self.selections.newest_anchor().head();
2091 let mut context_menu = self.context_menu.write();
2092 let completion_menu = match context_menu.as_ref() {
2093 Some(ContextMenu::Completions(menu)) => Some(menu),
2094
2095 _ => {
2096 *context_menu = None;
2097 None
2098 }
2099 };
2100
2101 if let Some(completion_menu) = completion_menu {
2102 let cursor_position = new_cursor_position.to_offset(buffer);
2103 let (word_range, kind) = buffer.surrounding_word(completion_menu.initial_position);
2104 if kind == Some(CharKind::Word)
2105 && word_range.to_inclusive().contains(&cursor_position)
2106 {
2107 let mut completion_menu = completion_menu.clone();
2108 drop(context_menu);
2109
2110 let query = Self::completion_query(buffer, cursor_position);
2111 cx.spawn(move |this, mut cx| async move {
2112 completion_menu
2113 .filter(query.as_deref(), cx.background_executor().clone())
2114 .await;
2115
2116 this.update(&mut cx, |this, cx| {
2117 let mut context_menu = this.context_menu.write();
2118 let Some(ContextMenu::Completions(menu)) = context_menu.as_ref() else {
2119 return;
2120 };
2121
2122 if menu.id > completion_menu.id {
2123 return;
2124 }
2125
2126 *context_menu = Some(ContextMenu::Completions(completion_menu));
2127 drop(context_menu);
2128 cx.notify();
2129 })
2130 })
2131 .detach();
2132
2133 self.show_completions(&ShowCompletions, cx);
2134 } else {
2135 drop(context_menu);
2136 self.hide_context_menu(cx);
2137 }
2138 } else {
2139 drop(context_menu);
2140 }
2141
2142 hide_hover(self, cx);
2143
2144 if old_cursor_position.to_display_point(&display_map).row()
2145 != new_cursor_position.to_display_point(&display_map).row()
2146 {
2147 self.available_code_actions.take();
2148 }
2149 self.refresh_code_actions(cx);
2150 self.refresh_document_highlights(cx);
2151 refresh_matching_bracket_highlights(self, cx);
2152 self.discard_inline_completion(cx);
2153 if self.git_blame_inline_enabled {
2154 self.start_inline_blame_timer(cx);
2155 }
2156 }
2157
2158 self.blink_manager.update(cx, BlinkManager::pause_blinking);
2159 cx.emit(EditorEvent::SelectionsChanged { local });
2160
2161 if self.selections.disjoint_anchors().len() == 1 {
2162 cx.emit(SearchEvent::ActiveMatchChanged)
2163 }
2164
2165 cx.notify();
2166 }
2167
2168 pub fn change_selections<R>(
2169 &mut self,
2170 autoscroll: Option<Autoscroll>,
2171 cx: &mut ViewContext<Self>,
2172 change: impl FnOnce(&mut MutableSelectionsCollection<'_>) -> R,
2173 ) -> R {
2174 let old_cursor_position = self.selections.newest_anchor().head();
2175 self.push_to_selection_history();
2176
2177 let (changed, result) = self.selections.change_with(cx, change);
2178
2179 if changed {
2180 if let Some(autoscroll) = autoscroll {
2181 self.request_autoscroll(autoscroll, cx);
2182 }
2183 self.selections_did_change(true, &old_cursor_position, cx);
2184 }
2185
2186 result
2187 }
2188
2189 pub fn edit<I, S, T>(&mut self, edits: I, cx: &mut ViewContext<Self>)
2190 where
2191 I: IntoIterator<Item = (Range<S>, T)>,
2192 S: ToOffset,
2193 T: Into<Arc<str>>,
2194 {
2195 if self.read_only(cx) {
2196 return;
2197 }
2198
2199 self.buffer
2200 .update(cx, |buffer, cx| buffer.edit(edits, None, cx));
2201 }
2202
2203 pub fn edit_with_autoindent<I, S, T>(&mut self, edits: I, cx: &mut ViewContext<Self>)
2204 where
2205 I: IntoIterator<Item = (Range<S>, T)>,
2206 S: ToOffset,
2207 T: Into<Arc<str>>,
2208 {
2209 if self.read_only(cx) {
2210 return;
2211 }
2212
2213 self.buffer.update(cx, |buffer, cx| {
2214 buffer.edit(edits, self.autoindent_mode.clone(), cx)
2215 });
2216 }
2217
2218 pub fn edit_with_block_indent<I, S, T>(
2219 &mut self,
2220 edits: I,
2221 original_indent_columns: Vec<u32>,
2222 cx: &mut ViewContext<Self>,
2223 ) where
2224 I: IntoIterator<Item = (Range<S>, T)>,
2225 S: ToOffset,
2226 T: Into<Arc<str>>,
2227 {
2228 if self.read_only(cx) {
2229 return;
2230 }
2231
2232 self.buffer.update(cx, |buffer, cx| {
2233 buffer.edit(
2234 edits,
2235 Some(AutoindentMode::Block {
2236 original_indent_columns,
2237 }),
2238 cx,
2239 )
2240 });
2241 }
2242
2243 fn select(&mut self, phase: SelectPhase, cx: &mut ViewContext<Self>) {
2244 self.hide_context_menu(cx);
2245
2246 match phase {
2247 SelectPhase::Begin {
2248 position,
2249 add,
2250 click_count,
2251 } => self.begin_selection(position, add, click_count, cx),
2252 SelectPhase::BeginColumnar {
2253 position,
2254 goal_column,
2255 } => self.begin_columnar_selection(position, goal_column, cx),
2256 SelectPhase::Extend {
2257 position,
2258 click_count,
2259 } => self.extend_selection(position, click_count, cx),
2260 SelectPhase::Update {
2261 position,
2262 goal_column,
2263 scroll_delta,
2264 } => self.update_selection(position, goal_column, scroll_delta, cx),
2265 SelectPhase::End => self.end_selection(cx),
2266 }
2267 }
2268
2269 fn extend_selection(
2270 &mut self,
2271 position: DisplayPoint,
2272 click_count: usize,
2273 cx: &mut ViewContext<Self>,
2274 ) {
2275 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
2276 let tail = self.selections.newest::<usize>(cx).tail();
2277 self.begin_selection(position, false, click_count, cx);
2278
2279 let position = position.to_offset(&display_map, Bias::Left);
2280 let tail_anchor = display_map.buffer_snapshot.anchor_before(tail);
2281
2282 let mut pending_selection = self
2283 .selections
2284 .pending_anchor()
2285 .expect("extend_selection not called with pending selection");
2286 if position >= tail {
2287 pending_selection.start = tail_anchor;
2288 } else {
2289 pending_selection.end = tail_anchor;
2290 pending_selection.reversed = true;
2291 }
2292
2293 let mut pending_mode = self.selections.pending_mode().unwrap();
2294 match &mut pending_mode {
2295 SelectMode::Word(range) | SelectMode::Line(range) => *range = tail_anchor..tail_anchor,
2296 _ => {}
2297 }
2298
2299 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
2300 s.set_pending(pending_selection, pending_mode)
2301 });
2302 }
2303
2304 fn begin_selection(
2305 &mut self,
2306 position: DisplayPoint,
2307 add: bool,
2308 click_count: usize,
2309 cx: &mut ViewContext<Self>,
2310 ) {
2311 if !self.focus_handle.is_focused(cx) {
2312 cx.focus(&self.focus_handle);
2313 }
2314
2315 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
2316 let buffer = &display_map.buffer_snapshot;
2317 let newest_selection = self.selections.newest_anchor().clone();
2318 let position = display_map.clip_point(position, Bias::Left);
2319
2320 let start;
2321 let end;
2322 let mode;
2323 let auto_scroll;
2324 match click_count {
2325 1 => {
2326 start = buffer.anchor_before(position.to_point(&display_map));
2327 end = start;
2328 mode = SelectMode::Character;
2329 auto_scroll = true;
2330 }
2331 2 => {
2332 let range = movement::surrounding_word(&display_map, position);
2333 start = buffer.anchor_before(range.start.to_point(&display_map));
2334 end = buffer.anchor_before(range.end.to_point(&display_map));
2335 mode = SelectMode::Word(start..end);
2336 auto_scroll = true;
2337 }
2338 3 => {
2339 let position = display_map
2340 .clip_point(position, Bias::Left)
2341 .to_point(&display_map);
2342 let line_start = display_map.prev_line_boundary(position).0;
2343 let next_line_start = buffer.clip_point(
2344 display_map.next_line_boundary(position).0 + Point::new(1, 0),
2345 Bias::Left,
2346 );
2347 start = buffer.anchor_before(line_start);
2348 end = buffer.anchor_before(next_line_start);
2349 mode = SelectMode::Line(start..end);
2350 auto_scroll = true;
2351 }
2352 _ => {
2353 start = buffer.anchor_before(0);
2354 end = buffer.anchor_before(buffer.len());
2355 mode = SelectMode::All;
2356 auto_scroll = false;
2357 }
2358 }
2359
2360 self.change_selections(auto_scroll.then(|| Autoscroll::newest()), cx, |s| {
2361 if !add {
2362 s.clear_disjoint();
2363 } else if click_count > 1 {
2364 s.delete(newest_selection.id)
2365 }
2366
2367 s.set_pending_anchor_range(start..end, mode);
2368 });
2369 }
2370
2371 fn begin_columnar_selection(
2372 &mut self,
2373 position: DisplayPoint,
2374 goal_column: u32,
2375 cx: &mut ViewContext<Self>,
2376 ) {
2377 if !self.focus_handle.is_focused(cx) {
2378 cx.focus(&self.focus_handle);
2379 }
2380
2381 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
2382 let tail = self.selections.newest::<Point>(cx).tail();
2383 self.columnar_selection_tail = Some(display_map.buffer_snapshot.anchor_before(tail));
2384
2385 self.select_columns(
2386 tail.to_display_point(&display_map),
2387 position,
2388 goal_column,
2389 &display_map,
2390 cx,
2391 );
2392 }
2393
2394 fn update_selection(
2395 &mut self,
2396 position: DisplayPoint,
2397 goal_column: u32,
2398 scroll_delta: gpui::Point<f32>,
2399 cx: &mut ViewContext<Self>,
2400 ) {
2401 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
2402
2403 if let Some(tail) = self.columnar_selection_tail.as_ref() {
2404 let tail = tail.to_display_point(&display_map);
2405 self.select_columns(tail, position, goal_column, &display_map, cx);
2406 } else if let Some(mut pending) = self.selections.pending_anchor() {
2407 let buffer = self.buffer.read(cx).snapshot(cx);
2408 let head;
2409 let tail;
2410 let mode = self.selections.pending_mode().unwrap();
2411 match &mode {
2412 SelectMode::Character => {
2413 head = position.to_point(&display_map);
2414 tail = pending.tail().to_point(&buffer);
2415 }
2416 SelectMode::Word(original_range) => {
2417 let original_display_range = original_range.start.to_display_point(&display_map)
2418 ..original_range.end.to_display_point(&display_map);
2419 let original_buffer_range = original_display_range.start.to_point(&display_map)
2420 ..original_display_range.end.to_point(&display_map);
2421 if movement::is_inside_word(&display_map, position)
2422 || original_display_range.contains(&position)
2423 {
2424 let word_range = movement::surrounding_word(&display_map, position);
2425 if word_range.start < original_display_range.start {
2426 head = word_range.start.to_point(&display_map);
2427 } else {
2428 head = word_range.end.to_point(&display_map);
2429 }
2430 } else {
2431 head = position.to_point(&display_map);
2432 }
2433
2434 if head <= original_buffer_range.start {
2435 tail = original_buffer_range.end;
2436 } else {
2437 tail = original_buffer_range.start;
2438 }
2439 }
2440 SelectMode::Line(original_range) => {
2441 let original_range = original_range.to_point(&display_map.buffer_snapshot);
2442
2443 let position = display_map
2444 .clip_point(position, Bias::Left)
2445 .to_point(&display_map);
2446 let line_start = display_map.prev_line_boundary(position).0;
2447 let next_line_start = buffer.clip_point(
2448 display_map.next_line_boundary(position).0 + Point::new(1, 0),
2449 Bias::Left,
2450 );
2451
2452 if line_start < original_range.start {
2453 head = line_start
2454 } else {
2455 head = next_line_start
2456 }
2457
2458 if head <= original_range.start {
2459 tail = original_range.end;
2460 } else {
2461 tail = original_range.start;
2462 }
2463 }
2464 SelectMode::All => {
2465 return;
2466 }
2467 };
2468
2469 if head < tail {
2470 pending.start = buffer.anchor_before(head);
2471 pending.end = buffer.anchor_before(tail);
2472 pending.reversed = true;
2473 } else {
2474 pending.start = buffer.anchor_before(tail);
2475 pending.end = buffer.anchor_before(head);
2476 pending.reversed = false;
2477 }
2478
2479 self.change_selections(None, cx, |s| {
2480 s.set_pending(pending, mode);
2481 });
2482 } else {
2483 log::error!("update_selection dispatched with no pending selection");
2484 return;
2485 }
2486
2487 self.apply_scroll_delta(scroll_delta, cx);
2488 cx.notify();
2489 }
2490
2491 fn end_selection(&mut self, cx: &mut ViewContext<Self>) {
2492 self.columnar_selection_tail.take();
2493 if self.selections.pending_anchor().is_some() {
2494 let selections = self.selections.all::<usize>(cx);
2495 self.change_selections(None, cx, |s| {
2496 s.select(selections);
2497 s.clear_pending();
2498 });
2499 }
2500 }
2501
2502 fn select_columns(
2503 &mut self,
2504 tail: DisplayPoint,
2505 head: DisplayPoint,
2506 goal_column: u32,
2507 display_map: &DisplaySnapshot,
2508 cx: &mut ViewContext<Self>,
2509 ) {
2510 let start_row = cmp::min(tail.row(), head.row());
2511 let end_row = cmp::max(tail.row(), head.row());
2512 let start_column = cmp::min(tail.column(), goal_column);
2513 let end_column = cmp::max(tail.column(), goal_column);
2514 let reversed = start_column < tail.column();
2515
2516 let selection_ranges = (start_row.0..=end_row.0)
2517 .map(DisplayRow)
2518 .filter_map(|row| {
2519 if start_column <= display_map.line_len(row) && !display_map.is_block_line(row) {
2520 let start = display_map
2521 .clip_point(DisplayPoint::new(row, start_column), Bias::Left)
2522 .to_point(display_map);
2523 let end = display_map
2524 .clip_point(DisplayPoint::new(row, end_column), Bias::Right)
2525 .to_point(display_map);
2526 if reversed {
2527 Some(end..start)
2528 } else {
2529 Some(start..end)
2530 }
2531 } else {
2532 None
2533 }
2534 })
2535 .collect::<Vec<_>>();
2536
2537 self.change_selections(None, cx, |s| {
2538 s.select_ranges(selection_ranges);
2539 });
2540 cx.notify();
2541 }
2542
2543 pub fn has_pending_nonempty_selection(&self) -> bool {
2544 let pending_nonempty_selection = match self.selections.pending_anchor() {
2545 Some(Selection { start, end, .. }) => start != end,
2546 None => false,
2547 };
2548 pending_nonempty_selection || self.columnar_selection_tail.is_some()
2549 }
2550
2551 pub fn has_pending_selection(&self) -> bool {
2552 self.selections.pending_anchor().is_some() || self.columnar_selection_tail.is_some()
2553 }
2554
2555 pub fn cancel(&mut self, _: &Cancel, cx: &mut ViewContext<Self>) {
2556 self.clear_expanded_diff_hunks(cx);
2557 if self.dismiss_menus_and_popups(cx) {
2558 return;
2559 }
2560
2561 if self.mode == EditorMode::Full {
2562 if self.change_selections(Some(Autoscroll::fit()), cx, |s| s.try_cancel()) {
2563 return;
2564 }
2565 }
2566
2567 cx.propagate();
2568 }
2569
2570 pub fn dismiss_menus_and_popups(&mut self, cx: &mut ViewContext<Self>) -> bool {
2571 if self.take_rename(false, cx).is_some() {
2572 return true;
2573 }
2574
2575 if hide_hover(self, cx) {
2576 return true;
2577 }
2578
2579 if self.hide_context_menu(cx).is_some() {
2580 return true;
2581 }
2582
2583 if self.discard_inline_completion(cx) {
2584 return true;
2585 }
2586
2587 if self.snippet_stack.pop().is_some() {
2588 return true;
2589 }
2590
2591 if self.mode == EditorMode::Full {
2592 if self.active_diagnostics.is_some() {
2593 self.dismiss_diagnostics(cx);
2594 return true;
2595 }
2596 }
2597
2598 false
2599 }
2600
2601 pub fn handle_input(&mut self, text: &str, cx: &mut ViewContext<Self>) {
2602 let text: Arc<str> = text.into();
2603
2604 if self.read_only(cx) {
2605 return;
2606 }
2607
2608 let selections = self.selections.all_adjusted(cx);
2609 let mut brace_inserted = false;
2610 let mut edits = Vec::new();
2611 let mut new_selections = Vec::with_capacity(selections.len());
2612 let mut new_autoclose_regions = Vec::new();
2613 let snapshot = self.buffer.read(cx).read(cx);
2614
2615 for (selection, autoclose_region) in
2616 self.selections_with_autoclose_regions(selections, &snapshot)
2617 {
2618 if let Some(scope) = snapshot.language_scope_at(selection.head()) {
2619 // Determine if the inserted text matches the opening or closing
2620 // bracket of any of this language's bracket pairs.
2621 let mut bracket_pair = None;
2622 let mut is_bracket_pair_start = false;
2623 let mut is_bracket_pair_end = false;
2624 if !text.is_empty() {
2625 // `text` can be empty when a user is using IME (e.g. Chinese Wubi Simplified)
2626 // and they are removing the character that triggered IME popup.
2627 for (pair, enabled) in scope.brackets() {
2628 if !pair.close {
2629 continue;
2630 }
2631
2632 if enabled && pair.start.ends_with(text.as_ref()) {
2633 bracket_pair = Some(pair.clone());
2634 is_bracket_pair_start = true;
2635 break;
2636 }
2637 if pair.end.as_str() == text.as_ref() {
2638 bracket_pair = Some(pair.clone());
2639 is_bracket_pair_end = true;
2640 break;
2641 }
2642 }
2643 }
2644
2645 if let Some(bracket_pair) = bracket_pair {
2646 if selection.is_empty() {
2647 if is_bracket_pair_start {
2648 let prefix_len = bracket_pair.start.len() - text.len();
2649
2650 // If the inserted text is a suffix of an opening bracket and the
2651 // selection is preceded by the rest of the opening bracket, then
2652 // insert the closing bracket.
2653 let following_text_allows_autoclose = snapshot
2654 .chars_at(selection.start)
2655 .next()
2656 .map_or(true, |c| scope.should_autoclose_before(c));
2657 let preceding_text_matches_prefix = prefix_len == 0
2658 || (selection.start.column >= (prefix_len as u32)
2659 && snapshot.contains_str_at(
2660 Point::new(
2661 selection.start.row,
2662 selection.start.column - (prefix_len as u32),
2663 ),
2664 &bracket_pair.start[..prefix_len],
2665 ));
2666 let autoclose = self.use_autoclose
2667 && snapshot.settings_at(selection.start, cx).use_autoclose;
2668 if autoclose
2669 && following_text_allows_autoclose
2670 && preceding_text_matches_prefix
2671 {
2672 let anchor = snapshot.anchor_before(selection.end);
2673 new_selections.push((selection.map(|_| anchor), text.len()));
2674 new_autoclose_regions.push((
2675 anchor,
2676 text.len(),
2677 selection.id,
2678 bracket_pair.clone(),
2679 ));
2680 edits.push((
2681 selection.range(),
2682 format!("{}{}", text, bracket_pair.end).into(),
2683 ));
2684 brace_inserted = true;
2685 continue;
2686 }
2687 }
2688
2689 if let Some(region) = autoclose_region {
2690 // If the selection is followed by an auto-inserted closing bracket,
2691 // then don't insert that closing bracket again; just move the selection
2692 // past the closing bracket.
2693 let should_skip = selection.end == region.range.end.to_point(&snapshot)
2694 && text.as_ref() == region.pair.end.as_str();
2695 if should_skip {
2696 let anchor = snapshot.anchor_after(selection.end);
2697 new_selections
2698 .push((selection.map(|_| anchor), region.pair.end.len()));
2699 continue;
2700 }
2701 }
2702
2703 let always_treat_brackets_as_autoclosed = snapshot
2704 .settings_at(selection.start, cx)
2705 .always_treat_brackets_as_autoclosed;
2706 if always_treat_brackets_as_autoclosed
2707 && is_bracket_pair_end
2708 && snapshot.contains_str_at(selection.end, text.as_ref())
2709 {
2710 // Otherwise, when `always_treat_brackets_as_autoclosed` is set to `true
2711 // and the inserted text is a closing bracket and the selection is followed
2712 // by the closing bracket then move the selection past the closing bracket.
2713 let anchor = snapshot.anchor_after(selection.end);
2714 new_selections.push((selection.map(|_| anchor), text.len()));
2715 continue;
2716 }
2717 }
2718 // If an opening bracket is 1 character long and is typed while
2719 // text is selected, then surround that text with the bracket pair.
2720 else if is_bracket_pair_start && bracket_pair.start.chars().count() == 1 {
2721 edits.push((selection.start..selection.start, text.clone()));
2722 edits.push((
2723 selection.end..selection.end,
2724 bracket_pair.end.as_str().into(),
2725 ));
2726 brace_inserted = true;
2727 new_selections.push((
2728 Selection {
2729 id: selection.id,
2730 start: snapshot.anchor_after(selection.start),
2731 end: snapshot.anchor_before(selection.end),
2732 reversed: selection.reversed,
2733 goal: selection.goal,
2734 },
2735 0,
2736 ));
2737 continue;
2738 }
2739 }
2740 }
2741
2742 if self.auto_replace_emoji_shortcode
2743 && selection.is_empty()
2744 && text.as_ref().ends_with(':')
2745 {
2746 if let Some(possible_emoji_short_code) =
2747 Self::find_possible_emoji_shortcode_at_position(&snapshot, selection.start)
2748 {
2749 if !possible_emoji_short_code.is_empty() {
2750 if let Some(emoji) = emojis::get_by_shortcode(&possible_emoji_short_code) {
2751 let emoji_shortcode_start = Point::new(
2752 selection.start.row,
2753 selection.start.column - possible_emoji_short_code.len() as u32 - 1,
2754 );
2755
2756 // Remove shortcode from buffer
2757 edits.push((
2758 emoji_shortcode_start..selection.start,
2759 "".to_string().into(),
2760 ));
2761 new_selections.push((
2762 Selection {
2763 id: selection.id,
2764 start: snapshot.anchor_after(emoji_shortcode_start),
2765 end: snapshot.anchor_before(selection.start),
2766 reversed: selection.reversed,
2767 goal: selection.goal,
2768 },
2769 0,
2770 ));
2771
2772 // Insert emoji
2773 let selection_start_anchor = snapshot.anchor_after(selection.start);
2774 new_selections.push((selection.map(|_| selection_start_anchor), 0));
2775 edits.push((selection.start..selection.end, emoji.to_string().into()));
2776
2777 continue;
2778 }
2779 }
2780 }
2781 }
2782
2783 // If not handling any auto-close operation, then just replace the selected
2784 // text with the given input and move the selection to the end of the
2785 // newly inserted text.
2786 let anchor = snapshot.anchor_after(selection.end);
2787 new_selections.push((selection.map(|_| anchor), 0));
2788 edits.push((selection.start..selection.end, text.clone()));
2789 }
2790
2791 drop(snapshot);
2792 self.transact(cx, |this, cx| {
2793 this.buffer.update(cx, |buffer, cx| {
2794 buffer.edit(edits, this.autoindent_mode.clone(), cx);
2795 });
2796
2797 let new_anchor_selections = new_selections.iter().map(|e| &e.0);
2798 let new_selection_deltas = new_selections.iter().map(|e| e.1);
2799 let snapshot = this.buffer.read(cx).read(cx);
2800 let new_selections = resolve_multiple::<usize, _>(new_anchor_selections, &snapshot)
2801 .zip(new_selection_deltas)
2802 .map(|(selection, delta)| Selection {
2803 id: selection.id,
2804 start: selection.start + delta,
2805 end: selection.end + delta,
2806 reversed: selection.reversed,
2807 goal: SelectionGoal::None,
2808 })
2809 .collect::<Vec<_>>();
2810
2811 let mut i = 0;
2812 for (position, delta, selection_id, pair) in new_autoclose_regions {
2813 let position = position.to_offset(&snapshot) + delta;
2814 let start = snapshot.anchor_before(position);
2815 let end = snapshot.anchor_after(position);
2816 while let Some(existing_state) = this.autoclose_regions.get(i) {
2817 match existing_state.range.start.cmp(&start, &snapshot) {
2818 Ordering::Less => i += 1,
2819 Ordering::Greater => break,
2820 Ordering::Equal => match end.cmp(&existing_state.range.end, &snapshot) {
2821 Ordering::Less => i += 1,
2822 Ordering::Equal => break,
2823 Ordering::Greater => break,
2824 },
2825 }
2826 }
2827 this.autoclose_regions.insert(
2828 i,
2829 AutocloseRegion {
2830 selection_id,
2831 range: start..end,
2832 pair,
2833 },
2834 );
2835 }
2836
2837 drop(snapshot);
2838 let had_active_inline_completion = this.has_active_inline_completion(cx);
2839 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(new_selections));
2840
2841 if brace_inserted {
2842 // If we inserted a brace while composing text (i.e. typing `"` on a
2843 // Brazilian keyboard), exit the composing state because most likely
2844 // the user wanted to surround the selection.
2845 this.unmark_text(cx);
2846 } else if EditorSettings::get_global(cx).use_on_type_format {
2847 if let Some(on_type_format_task) =
2848 this.trigger_on_type_formatting(text.to_string(), cx)
2849 {
2850 on_type_format_task.detach_and_log_err(cx);
2851 }
2852 }
2853
2854 let trigger_in_words = !had_active_inline_completion;
2855 this.trigger_completion_on_input(&text, trigger_in_words, cx);
2856 this.refresh_inline_completion(true, cx);
2857 });
2858 }
2859
2860 fn find_possible_emoji_shortcode_at_position(
2861 snapshot: &MultiBufferSnapshot,
2862 position: Point,
2863 ) -> Option<String> {
2864 let mut chars = Vec::new();
2865 let mut found_colon = false;
2866 for char in snapshot.reversed_chars_at(position).take(100) {
2867 // Found a possible emoji shortcode in the middle of the buffer
2868 if found_colon {
2869 if char.is_whitespace() {
2870 chars.reverse();
2871 return Some(chars.iter().collect());
2872 }
2873 // If the previous character is not a whitespace, we are in the middle of a word
2874 // and we only want to complete the shortcode if the word is made up of other emojis
2875 let mut containing_word = String::new();
2876 for ch in snapshot
2877 .reversed_chars_at(position)
2878 .skip(chars.len() + 1)
2879 .take(100)
2880 {
2881 if ch.is_whitespace() {
2882 break;
2883 }
2884 containing_word.push(ch);
2885 }
2886 let containing_word = containing_word.chars().rev().collect::<String>();
2887 if util::word_consists_of_emojis(containing_word.as_str()) {
2888 chars.reverse();
2889 return Some(chars.iter().collect());
2890 }
2891 }
2892
2893 if char.is_whitespace() || !char.is_ascii() {
2894 return None;
2895 }
2896 if char == ':' {
2897 found_colon = true;
2898 } else {
2899 chars.push(char);
2900 }
2901 }
2902 // Found a possible emoji shortcode at the beginning of the buffer
2903 chars.reverse();
2904 Some(chars.iter().collect())
2905 }
2906
2907 pub fn newline(&mut self, _: &Newline, cx: &mut ViewContext<Self>) {
2908 self.transact(cx, |this, cx| {
2909 let (edits, selection_fixup_info): (Vec<_>, Vec<_>) = {
2910 let selections = this.selections.all::<usize>(cx);
2911 let multi_buffer = this.buffer.read(cx);
2912 let buffer = multi_buffer.snapshot(cx);
2913 selections
2914 .iter()
2915 .map(|selection| {
2916 let start_point = selection.start.to_point(&buffer);
2917 let mut indent =
2918 buffer.indent_size_for_line(MultiBufferRow(start_point.row));
2919 indent.len = cmp::min(indent.len, start_point.column);
2920 let start = selection.start;
2921 let end = selection.end;
2922 let selection_is_empty = start == end;
2923 let language_scope = buffer.language_scope_at(start);
2924 let (comment_delimiter, insert_extra_newline) = if let Some(language) =
2925 &language_scope
2926 {
2927 let leading_whitespace_len = buffer
2928 .reversed_chars_at(start)
2929 .take_while(|c| c.is_whitespace() && *c != '\n')
2930 .map(|c| c.len_utf8())
2931 .sum::<usize>();
2932
2933 let trailing_whitespace_len = buffer
2934 .chars_at(end)
2935 .take_while(|c| c.is_whitespace() && *c != '\n')
2936 .map(|c| c.len_utf8())
2937 .sum::<usize>();
2938
2939 let insert_extra_newline =
2940 language.brackets().any(|(pair, enabled)| {
2941 let pair_start = pair.start.trim_end();
2942 let pair_end = pair.end.trim_start();
2943
2944 enabled
2945 && pair.newline
2946 && buffer.contains_str_at(
2947 end + trailing_whitespace_len,
2948 pair_end,
2949 )
2950 && buffer.contains_str_at(
2951 (start - leading_whitespace_len)
2952 .saturating_sub(pair_start.len()),
2953 pair_start,
2954 )
2955 });
2956
2957 // Comment extension on newline is allowed only for cursor selections
2958 let comment_delimiter = maybe!({
2959 if !selection_is_empty {
2960 return None;
2961 }
2962
2963 if !multi_buffer.settings_at(0, cx).extend_comment_on_newline {
2964 return None;
2965 }
2966
2967 let delimiters = language.line_comment_prefixes();
2968 let max_len_of_delimiter =
2969 delimiters.iter().map(|delimiter| delimiter.len()).max()?;
2970 let (snapshot, range) =
2971 buffer.buffer_line_for_row(MultiBufferRow(start_point.row))?;
2972
2973 let mut index_of_first_non_whitespace = 0;
2974 let comment_candidate = snapshot
2975 .chars_for_range(range)
2976 .skip_while(|c| {
2977 let should_skip = c.is_whitespace();
2978 if should_skip {
2979 index_of_first_non_whitespace += 1;
2980 }
2981 should_skip
2982 })
2983 .take(max_len_of_delimiter)
2984 .collect::<String>();
2985 let comment_prefix = delimiters.iter().find(|comment_prefix| {
2986 comment_candidate.starts_with(comment_prefix.as_ref())
2987 })?;
2988 let cursor_is_placed_after_comment_marker =
2989 index_of_first_non_whitespace + comment_prefix.len()
2990 <= start_point.column as usize;
2991 if cursor_is_placed_after_comment_marker {
2992 Some(comment_prefix.clone())
2993 } else {
2994 None
2995 }
2996 });
2997 (comment_delimiter, insert_extra_newline)
2998 } else {
2999 (None, false)
3000 };
3001
3002 let capacity_for_delimiter = comment_delimiter
3003 .as_deref()
3004 .map(str::len)
3005 .unwrap_or_default();
3006 let mut new_text =
3007 String::with_capacity(1 + capacity_for_delimiter + indent.len as usize);
3008 new_text.push_str("\n");
3009 new_text.extend(indent.chars());
3010 if let Some(delimiter) = &comment_delimiter {
3011 new_text.push_str(&delimiter);
3012 }
3013 if insert_extra_newline {
3014 new_text = new_text.repeat(2);
3015 }
3016
3017 let anchor = buffer.anchor_after(end);
3018 let new_selection = selection.map(|_| anchor);
3019 (
3020 (start..end, new_text),
3021 (insert_extra_newline, new_selection),
3022 )
3023 })
3024 .unzip()
3025 };
3026
3027 this.edit_with_autoindent(edits, cx);
3028 let buffer = this.buffer.read(cx).snapshot(cx);
3029 let new_selections = selection_fixup_info
3030 .into_iter()
3031 .map(|(extra_newline_inserted, new_selection)| {
3032 let mut cursor = new_selection.end.to_point(&buffer);
3033 if extra_newline_inserted {
3034 cursor.row -= 1;
3035 cursor.column = buffer.line_len(MultiBufferRow(cursor.row));
3036 }
3037 new_selection.map(|_| cursor)
3038 })
3039 .collect();
3040
3041 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(new_selections));
3042 this.refresh_inline_completion(true, cx);
3043 });
3044 }
3045
3046 pub fn newline_above(&mut self, _: &NewlineAbove, cx: &mut ViewContext<Self>) {
3047 let buffer = self.buffer.read(cx);
3048 let snapshot = buffer.snapshot(cx);
3049
3050 let mut edits = Vec::new();
3051 let mut rows = Vec::new();
3052
3053 for (rows_inserted, selection) in self.selections.all_adjusted(cx).into_iter().enumerate() {
3054 let cursor = selection.head();
3055 let row = cursor.row;
3056
3057 let start_of_line = snapshot.clip_point(Point::new(row, 0), Bias::Left);
3058
3059 let newline = "\n".to_string();
3060 edits.push((start_of_line..start_of_line, newline));
3061
3062 rows.push(row + rows_inserted as u32);
3063 }
3064
3065 self.transact(cx, |editor, cx| {
3066 editor.edit(edits, cx);
3067
3068 editor.change_selections(Some(Autoscroll::fit()), cx, |s| {
3069 let mut index = 0;
3070 s.move_cursors_with(|map, _, _| {
3071 let row = rows[index];
3072 index += 1;
3073
3074 let point = Point::new(row, 0);
3075 let boundary = map.next_line_boundary(point).1;
3076 let clipped = map.clip_point(boundary, Bias::Left);
3077
3078 (clipped, SelectionGoal::None)
3079 });
3080 });
3081
3082 let mut indent_edits = Vec::new();
3083 let multibuffer_snapshot = editor.buffer.read(cx).snapshot(cx);
3084 for row in rows {
3085 let indents = multibuffer_snapshot.suggested_indents(row..row + 1, cx);
3086 for (row, indent) in indents {
3087 if indent.len == 0 {
3088 continue;
3089 }
3090
3091 let text = match indent.kind {
3092 IndentKind::Space => " ".repeat(indent.len as usize),
3093 IndentKind::Tab => "\t".repeat(indent.len as usize),
3094 };
3095 let point = Point::new(row.0, 0);
3096 indent_edits.push((point..point, text));
3097 }
3098 }
3099 editor.edit(indent_edits, cx);
3100 });
3101 }
3102
3103 pub fn newline_below(&mut self, _: &NewlineBelow, cx: &mut ViewContext<Self>) {
3104 let buffer = self.buffer.read(cx);
3105 let snapshot = buffer.snapshot(cx);
3106
3107 let mut edits = Vec::new();
3108 let mut rows = Vec::new();
3109 let mut rows_inserted = 0;
3110
3111 for selection in self.selections.all_adjusted(cx) {
3112 let cursor = selection.head();
3113 let row = cursor.row;
3114
3115 let point = Point::new(row + 1, 0);
3116 let start_of_line = snapshot.clip_point(point, Bias::Left);
3117
3118 let newline = "\n".to_string();
3119 edits.push((start_of_line..start_of_line, newline));
3120
3121 rows_inserted += 1;
3122 rows.push(row + rows_inserted);
3123 }
3124
3125 self.transact(cx, |editor, cx| {
3126 editor.edit(edits, cx);
3127
3128 editor.change_selections(Some(Autoscroll::fit()), cx, |s| {
3129 let mut index = 0;
3130 s.move_cursors_with(|map, _, _| {
3131 let row = rows[index];
3132 index += 1;
3133
3134 let point = Point::new(row, 0);
3135 let boundary = map.next_line_boundary(point).1;
3136 let clipped = map.clip_point(boundary, Bias::Left);
3137
3138 (clipped, SelectionGoal::None)
3139 });
3140 });
3141
3142 let mut indent_edits = Vec::new();
3143 let multibuffer_snapshot = editor.buffer.read(cx).snapshot(cx);
3144 for row in rows {
3145 let indents = multibuffer_snapshot.suggested_indents(row..row + 1, cx);
3146 for (row, indent) in indents {
3147 if indent.len == 0 {
3148 continue;
3149 }
3150
3151 let text = match indent.kind {
3152 IndentKind::Space => " ".repeat(indent.len as usize),
3153 IndentKind::Tab => "\t".repeat(indent.len as usize),
3154 };
3155 let point = Point::new(row.0, 0);
3156 indent_edits.push((point..point, text));
3157 }
3158 }
3159 editor.edit(indent_edits, cx);
3160 });
3161 }
3162
3163 pub fn insert(&mut self, text: &str, cx: &mut ViewContext<Self>) {
3164 let autoindent = text.is_empty().not().then(|| AutoindentMode::Block {
3165 original_indent_columns: Vec::new(),
3166 });
3167 self.insert_with_autoindent_mode(text, autoindent, cx);
3168 }
3169
3170 fn insert_with_autoindent_mode(
3171 &mut self,
3172 text: &str,
3173 autoindent_mode: Option<AutoindentMode>,
3174 cx: &mut ViewContext<Self>,
3175 ) {
3176 if self.read_only(cx) {
3177 return;
3178 }
3179
3180 let text: Arc<str> = text.into();
3181 self.transact(cx, |this, cx| {
3182 let old_selections = this.selections.all_adjusted(cx);
3183 let selection_anchors = this.buffer.update(cx, |buffer, cx| {
3184 let anchors = {
3185 let snapshot = buffer.read(cx);
3186 old_selections
3187 .iter()
3188 .map(|s| {
3189 let anchor = snapshot.anchor_after(s.head());
3190 s.map(|_| anchor)
3191 })
3192 .collect::<Vec<_>>()
3193 };
3194 buffer.edit(
3195 old_selections
3196 .iter()
3197 .map(|s| (s.start..s.end, text.clone())),
3198 autoindent_mode,
3199 cx,
3200 );
3201 anchors
3202 });
3203
3204 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
3205 s.select_anchors(selection_anchors);
3206 })
3207 });
3208 }
3209
3210 fn trigger_completion_on_input(
3211 &mut self,
3212 text: &str,
3213 trigger_in_words: bool,
3214 cx: &mut ViewContext<Self>,
3215 ) {
3216 if !EditorSettings::get_global(cx).show_completions_on_input {
3217 return;
3218 }
3219
3220 let selection = self.selections.newest_anchor();
3221 if self
3222 .buffer
3223 .read(cx)
3224 .is_completion_trigger(selection.head(), text, trigger_in_words, cx)
3225 {
3226 self.show_completions(&ShowCompletions, cx);
3227 } else {
3228 self.hide_context_menu(cx);
3229 }
3230 }
3231
3232 /// If any empty selections is touching the start of its innermost containing autoclose
3233 /// region, expand it to select the brackets.
3234 fn select_autoclose_pair(&mut self, cx: &mut ViewContext<Self>) {
3235 let selections = self.selections.all::<usize>(cx);
3236 let buffer = self.buffer.read(cx).read(cx);
3237 let new_selections = self
3238 .selections_with_autoclose_regions(selections, &buffer)
3239 .map(|(mut selection, region)| {
3240 if !selection.is_empty() {
3241 return selection;
3242 }
3243
3244 if let Some(region) = region {
3245 let mut range = region.range.to_offset(&buffer);
3246 if selection.start == range.start && range.start >= region.pair.start.len() {
3247 range.start -= region.pair.start.len();
3248 if buffer.contains_str_at(range.start, ®ion.pair.start)
3249 && buffer.contains_str_at(range.end, ®ion.pair.end)
3250 {
3251 range.end += region.pair.end.len();
3252 selection.start = range.start;
3253 selection.end = range.end;
3254
3255 return selection;
3256 }
3257 }
3258 }
3259
3260 let always_treat_brackets_as_autoclosed = buffer
3261 .settings_at(selection.start, cx)
3262 .always_treat_brackets_as_autoclosed;
3263
3264 if !always_treat_brackets_as_autoclosed {
3265 return selection;
3266 }
3267
3268 if let Some(scope) = buffer.language_scope_at(selection.start) {
3269 for (pair, enabled) in scope.brackets() {
3270 if !enabled || !pair.close {
3271 continue;
3272 }
3273
3274 if buffer.contains_str_at(selection.start, &pair.end) {
3275 let pair_start_len = pair.start.len();
3276 if buffer.contains_str_at(selection.start - pair_start_len, &pair.start)
3277 {
3278 selection.start -= pair_start_len;
3279 selection.end += pair.end.len();
3280
3281 return selection;
3282 }
3283 }
3284 }
3285 }
3286
3287 selection
3288 })
3289 .collect();
3290
3291 drop(buffer);
3292 self.change_selections(None, cx, |selections| selections.select(new_selections));
3293 }
3294
3295 /// Iterate the given selections, and for each one, find the smallest surrounding
3296 /// autoclose region. This uses the ordering of the selections and the autoclose
3297 /// regions to avoid repeated comparisons.
3298 fn selections_with_autoclose_regions<'a, D: ToOffset + Clone>(
3299 &'a self,
3300 selections: impl IntoIterator<Item = Selection<D>>,
3301 buffer: &'a MultiBufferSnapshot,
3302 ) -> impl Iterator<Item = (Selection<D>, Option<&'a AutocloseRegion>)> {
3303 let mut i = 0;
3304 let mut regions = self.autoclose_regions.as_slice();
3305 selections.into_iter().map(move |selection| {
3306 let range = selection.start.to_offset(buffer)..selection.end.to_offset(buffer);
3307
3308 let mut enclosing = None;
3309 while let Some(pair_state) = regions.get(i) {
3310 if pair_state.range.end.to_offset(buffer) < range.start {
3311 regions = ®ions[i + 1..];
3312 i = 0;
3313 } else if pair_state.range.start.to_offset(buffer) > range.end {
3314 break;
3315 } else {
3316 if pair_state.selection_id == selection.id {
3317 enclosing = Some(pair_state);
3318 }
3319 i += 1;
3320 }
3321 }
3322
3323 (selection.clone(), enclosing)
3324 })
3325 }
3326
3327 /// Remove any autoclose regions that no longer contain their selection.
3328 fn invalidate_autoclose_regions(
3329 &mut self,
3330 mut selections: &[Selection<Anchor>],
3331 buffer: &MultiBufferSnapshot,
3332 ) {
3333 self.autoclose_regions.retain(|state| {
3334 let mut i = 0;
3335 while let Some(selection) = selections.get(i) {
3336 if selection.end.cmp(&state.range.start, buffer).is_lt() {
3337 selections = &selections[1..];
3338 continue;
3339 }
3340 if selection.start.cmp(&state.range.end, buffer).is_gt() {
3341 break;
3342 }
3343 if selection.id == state.selection_id {
3344 return true;
3345 } else {
3346 i += 1;
3347 }
3348 }
3349 false
3350 });
3351 }
3352
3353 fn completion_query(buffer: &MultiBufferSnapshot, position: impl ToOffset) -> Option<String> {
3354 let offset = position.to_offset(buffer);
3355 let (word_range, kind) = buffer.surrounding_word(offset);
3356 if offset > word_range.start && kind == Some(CharKind::Word) {
3357 Some(
3358 buffer
3359 .text_for_range(word_range.start..offset)
3360 .collect::<String>(),
3361 )
3362 } else {
3363 None
3364 }
3365 }
3366
3367 pub fn toggle_inlay_hints(&mut self, _: &ToggleInlayHints, cx: &mut ViewContext<Self>) {
3368 self.refresh_inlay_hints(
3369 InlayHintRefreshReason::Toggle(!self.inlay_hint_cache.enabled),
3370 cx,
3371 );
3372 }
3373
3374 pub fn inlay_hints_enabled(&self) -> bool {
3375 self.inlay_hint_cache.enabled
3376 }
3377
3378 fn refresh_inlay_hints(&mut self, reason: InlayHintRefreshReason, cx: &mut ViewContext<Self>) {
3379 if self.project.is_none() || self.mode != EditorMode::Full {
3380 return;
3381 }
3382
3383 let reason_description = reason.description();
3384 let ignore_debounce = matches!(
3385 reason,
3386 InlayHintRefreshReason::SettingsChange(_)
3387 | InlayHintRefreshReason::Toggle(_)
3388 | InlayHintRefreshReason::ExcerptsRemoved(_)
3389 );
3390 let (invalidate_cache, required_languages) = match reason {
3391 InlayHintRefreshReason::Toggle(enabled) => {
3392 self.inlay_hint_cache.enabled = enabled;
3393 if enabled {
3394 (InvalidationStrategy::RefreshRequested, None)
3395 } else {
3396 self.inlay_hint_cache.clear();
3397 self.splice_inlays(
3398 self.visible_inlay_hints(cx)
3399 .iter()
3400 .map(|inlay| inlay.id)
3401 .collect(),
3402 Vec::new(),
3403 cx,
3404 );
3405 return;
3406 }
3407 }
3408 InlayHintRefreshReason::SettingsChange(new_settings) => {
3409 match self.inlay_hint_cache.update_settings(
3410 &self.buffer,
3411 new_settings,
3412 self.visible_inlay_hints(cx),
3413 cx,
3414 ) {
3415 ControlFlow::Break(Some(InlaySplice {
3416 to_remove,
3417 to_insert,
3418 })) => {
3419 self.splice_inlays(to_remove, to_insert, cx);
3420 return;
3421 }
3422 ControlFlow::Break(None) => return,
3423 ControlFlow::Continue(()) => (InvalidationStrategy::RefreshRequested, None),
3424 }
3425 }
3426 InlayHintRefreshReason::ExcerptsRemoved(excerpts_removed) => {
3427 if let Some(InlaySplice {
3428 to_remove,
3429 to_insert,
3430 }) = self.inlay_hint_cache.remove_excerpts(excerpts_removed)
3431 {
3432 self.splice_inlays(to_remove, to_insert, cx);
3433 }
3434 return;
3435 }
3436 InlayHintRefreshReason::NewLinesShown => (InvalidationStrategy::None, None),
3437 InlayHintRefreshReason::BufferEdited(buffer_languages) => {
3438 (InvalidationStrategy::BufferEdited, Some(buffer_languages))
3439 }
3440 InlayHintRefreshReason::RefreshRequested => {
3441 (InvalidationStrategy::RefreshRequested, None)
3442 }
3443 };
3444
3445 if let Some(InlaySplice {
3446 to_remove,
3447 to_insert,
3448 }) = self.inlay_hint_cache.spawn_hint_refresh(
3449 reason_description,
3450 self.excerpts_for_inlay_hints_query(required_languages.as_ref(), cx),
3451 invalidate_cache,
3452 ignore_debounce,
3453 cx,
3454 ) {
3455 self.splice_inlays(to_remove, to_insert, cx);
3456 }
3457 }
3458
3459 fn visible_inlay_hints(&self, cx: &ViewContext<'_, Editor>) -> Vec<Inlay> {
3460 self.display_map
3461 .read(cx)
3462 .current_inlays()
3463 .filter(move |inlay| matches!(inlay.id, InlayId::Hint(_)))
3464 .cloned()
3465 .collect()
3466 }
3467
3468 pub fn excerpts_for_inlay_hints_query(
3469 &self,
3470 restrict_to_languages: Option<&HashSet<Arc<Language>>>,
3471 cx: &mut ViewContext<Editor>,
3472 ) -> HashMap<ExcerptId, (Model<Buffer>, clock::Global, Range<usize>)> {
3473 let Some(project) = self.project.as_ref() else {
3474 return HashMap::default();
3475 };
3476 let project = project.read(cx);
3477 let multi_buffer = self.buffer().read(cx);
3478 let multi_buffer_snapshot = multi_buffer.snapshot(cx);
3479 let multi_buffer_visible_start = self
3480 .scroll_manager
3481 .anchor()
3482 .anchor
3483 .to_point(&multi_buffer_snapshot);
3484 let multi_buffer_visible_end = multi_buffer_snapshot.clip_point(
3485 multi_buffer_visible_start
3486 + Point::new(self.visible_line_count().unwrap_or(0.).ceil() as u32, 0),
3487 Bias::Left,
3488 );
3489 let multi_buffer_visible_range = multi_buffer_visible_start..multi_buffer_visible_end;
3490 multi_buffer
3491 .range_to_buffer_ranges(multi_buffer_visible_range, cx)
3492 .into_iter()
3493 .filter(|(_, excerpt_visible_range, _)| !excerpt_visible_range.is_empty())
3494 .filter_map(|(buffer_handle, excerpt_visible_range, excerpt_id)| {
3495 let buffer = buffer_handle.read(cx);
3496 let buffer_file = project::File::from_dyn(buffer.file())?;
3497 let buffer_worktree = project.worktree_for_id(buffer_file.worktree_id(cx), cx)?;
3498 let worktree_entry = buffer_worktree
3499 .read(cx)
3500 .entry_for_id(buffer_file.project_entry_id(cx)?)?;
3501 if worktree_entry.is_ignored {
3502 return None;
3503 }
3504
3505 let language = buffer.language()?;
3506 if let Some(restrict_to_languages) = restrict_to_languages {
3507 if !restrict_to_languages.contains(language) {
3508 return None;
3509 }
3510 }
3511 Some((
3512 excerpt_id,
3513 (
3514 buffer_handle,
3515 buffer.version().clone(),
3516 excerpt_visible_range,
3517 ),
3518 ))
3519 })
3520 .collect()
3521 }
3522
3523 pub fn text_layout_details(&self, cx: &WindowContext) -> TextLayoutDetails {
3524 TextLayoutDetails {
3525 text_system: cx.text_system().clone(),
3526 editor_style: self.style.clone().unwrap(),
3527 rem_size: cx.rem_size(),
3528 scroll_anchor: self.scroll_manager.anchor(),
3529 visible_rows: self.visible_line_count(),
3530 vertical_scroll_margin: self.scroll_manager.vertical_scroll_margin,
3531 }
3532 }
3533
3534 fn splice_inlays(
3535 &self,
3536 to_remove: Vec<InlayId>,
3537 to_insert: Vec<Inlay>,
3538 cx: &mut ViewContext<Self>,
3539 ) {
3540 self.display_map.update(cx, |display_map, cx| {
3541 display_map.splice_inlays(to_remove, to_insert, cx);
3542 });
3543 cx.notify();
3544 }
3545
3546 fn trigger_on_type_formatting(
3547 &self,
3548 input: String,
3549 cx: &mut ViewContext<Self>,
3550 ) -> Option<Task<Result<()>>> {
3551 if input.len() != 1 {
3552 return None;
3553 }
3554
3555 let project = self.project.as_ref()?;
3556 let position = self.selections.newest_anchor().head();
3557 let (buffer, buffer_position) = self
3558 .buffer
3559 .read(cx)
3560 .text_anchor_for_position(position, cx)?;
3561
3562 // OnTypeFormatting returns a list of edits, no need to pass them between Zed instances,
3563 // hence we do LSP request & edit on host side only — add formats to host's history.
3564 let push_to_lsp_host_history = true;
3565 // If this is not the host, append its history with new edits.
3566 let push_to_client_history = project.read(cx).is_remote();
3567
3568 let on_type_formatting = project.update(cx, |project, cx| {
3569 project.on_type_format(
3570 buffer.clone(),
3571 buffer_position,
3572 input,
3573 push_to_lsp_host_history,
3574 cx,
3575 )
3576 });
3577 Some(cx.spawn(|editor, mut cx| async move {
3578 if let Some(transaction) = on_type_formatting.await? {
3579 if push_to_client_history {
3580 buffer
3581 .update(&mut cx, |buffer, _| {
3582 buffer.push_transaction(transaction, Instant::now());
3583 })
3584 .ok();
3585 }
3586 editor.update(&mut cx, |editor, cx| {
3587 editor.refresh_document_highlights(cx);
3588 })?;
3589 }
3590 Ok(())
3591 }))
3592 }
3593
3594 fn show_completions(&mut self, _: &ShowCompletions, cx: &mut ViewContext<Self>) {
3595 if self.pending_rename.is_some() {
3596 return;
3597 }
3598
3599 let Some(provider) = self.completion_provider.as_ref() else {
3600 return;
3601 };
3602
3603 let position = self.selections.newest_anchor().head();
3604 let (buffer, buffer_position) =
3605 if let Some(output) = self.buffer.read(cx).text_anchor_for_position(position, cx) {
3606 output
3607 } else {
3608 return;
3609 };
3610
3611 let query = Self::completion_query(&self.buffer.read(cx).read(cx), position);
3612 let completions = provider.completions(&buffer, buffer_position, cx);
3613
3614 let id = post_inc(&mut self.next_completion_id);
3615 let task = cx.spawn(|this, mut cx| {
3616 async move {
3617 let completions = completions.await.log_err();
3618 let menu = if let Some(completions) = completions {
3619 let mut menu = CompletionsMenu {
3620 id,
3621 initial_position: position,
3622 match_candidates: completions
3623 .iter()
3624 .enumerate()
3625 .map(|(id, completion)| {
3626 StringMatchCandidate::new(
3627 id,
3628 completion.label.text[completion.label.filter_range.clone()]
3629 .into(),
3630 )
3631 })
3632 .collect(),
3633 buffer: buffer.clone(),
3634 completions: Arc::new(RwLock::new(completions.into())),
3635 matches: Vec::new().into(),
3636 selected_item: 0,
3637 scroll_handle: UniformListScrollHandle::new(),
3638 selected_completion_documentation_resolve_debounce: Arc::new(Mutex::new(
3639 DebouncedDelay::new(),
3640 )),
3641 };
3642 menu.filter(query.as_deref(), cx.background_executor().clone())
3643 .await;
3644
3645 if menu.matches.is_empty() {
3646 None
3647 } else {
3648 this.update(&mut cx, |editor, cx| {
3649 let completions = menu.completions.clone();
3650 let matches = menu.matches.clone();
3651
3652 let delay_ms = EditorSettings::get_global(cx)
3653 .completion_documentation_secondary_query_debounce;
3654 let delay = Duration::from_millis(delay_ms);
3655
3656 editor
3657 .completion_documentation_pre_resolve_debounce
3658 .fire_new(delay, cx, |editor, cx| {
3659 CompletionsMenu::pre_resolve_completion_documentation(
3660 buffer,
3661 completions,
3662 matches,
3663 editor,
3664 cx,
3665 )
3666 });
3667 })
3668 .ok();
3669 Some(menu)
3670 }
3671 } else {
3672 None
3673 };
3674
3675 this.update(&mut cx, |this, cx| {
3676 this.completion_tasks.retain(|(task_id, _)| *task_id >= id);
3677
3678 let mut context_menu = this.context_menu.write();
3679 match context_menu.as_ref() {
3680 None => {}
3681
3682 Some(ContextMenu::Completions(prev_menu)) => {
3683 if prev_menu.id > id {
3684 return;
3685 }
3686 }
3687
3688 _ => return,
3689 }
3690
3691 if this.focus_handle.is_focused(cx) && menu.is_some() {
3692 let menu = menu.unwrap();
3693 *context_menu = Some(ContextMenu::Completions(menu));
3694 drop(context_menu);
3695 this.discard_inline_completion(cx);
3696 cx.notify();
3697 } else if this.completion_tasks.len() <= 1 {
3698 // If there are no more completion tasks and the last menu was
3699 // empty, we should hide it. If it was already hidden, we should
3700 // also show the copilot completion when available.
3701 drop(context_menu);
3702 if this.hide_context_menu(cx).is_none() {
3703 this.update_visible_inline_completion(cx);
3704 }
3705 }
3706 })?;
3707
3708 Ok::<_, anyhow::Error>(())
3709 }
3710 .log_err()
3711 });
3712
3713 self.completion_tasks.push((id, task));
3714 }
3715
3716 pub fn confirm_completion(
3717 &mut self,
3718 action: &ConfirmCompletion,
3719 cx: &mut ViewContext<Self>,
3720 ) -> Option<Task<Result<()>>> {
3721 use language::ToOffset as _;
3722
3723 let completions_menu = if let ContextMenu::Completions(menu) = self.hide_context_menu(cx)? {
3724 menu
3725 } else {
3726 return None;
3727 };
3728
3729 let mat = completions_menu
3730 .matches
3731 .get(action.item_ix.unwrap_or(completions_menu.selected_item))?;
3732 let buffer_handle = completions_menu.buffer;
3733 let completions = completions_menu.completions.read();
3734 let completion = completions.get(mat.candidate_id)?;
3735 cx.stop_propagation();
3736
3737 let snippet;
3738 let text;
3739 if completion.is_snippet() {
3740 snippet = Some(Snippet::parse(&completion.new_text).log_err()?);
3741 text = snippet.as_ref().unwrap().text.clone();
3742 } else {
3743 snippet = None;
3744 text = completion.new_text.clone();
3745 };
3746 let selections = self.selections.all::<usize>(cx);
3747 let buffer = buffer_handle.read(cx);
3748 let old_range = completion.old_range.to_offset(buffer);
3749 let old_text = buffer.text_for_range(old_range.clone()).collect::<String>();
3750
3751 let newest_selection = self.selections.newest_anchor();
3752 if newest_selection.start.buffer_id != Some(buffer_handle.read(cx).remote_id()) {
3753 return None;
3754 }
3755
3756 let lookbehind = newest_selection
3757 .start
3758 .text_anchor
3759 .to_offset(buffer)
3760 .saturating_sub(old_range.start);
3761 let lookahead = old_range
3762 .end
3763 .saturating_sub(newest_selection.end.text_anchor.to_offset(buffer));
3764 let mut common_prefix_len = old_text
3765 .bytes()
3766 .zip(text.bytes())
3767 .take_while(|(a, b)| a == b)
3768 .count();
3769
3770 let snapshot = self.buffer.read(cx).snapshot(cx);
3771 let mut range_to_replace: Option<Range<isize>> = None;
3772 let mut ranges = Vec::new();
3773 for selection in &selections {
3774 if snapshot.contains_str_at(selection.start.saturating_sub(lookbehind), &old_text) {
3775 let start = selection.start.saturating_sub(lookbehind);
3776 let end = selection.end + lookahead;
3777 if selection.id == newest_selection.id {
3778 range_to_replace = Some(
3779 ((start + common_prefix_len) as isize - selection.start as isize)
3780 ..(end as isize - selection.start as isize),
3781 );
3782 }
3783 ranges.push(start + common_prefix_len..end);
3784 } else {
3785 common_prefix_len = 0;
3786 ranges.clear();
3787 ranges.extend(selections.iter().map(|s| {
3788 if s.id == newest_selection.id {
3789 range_to_replace = Some(
3790 old_range.start.to_offset_utf16(&snapshot).0 as isize
3791 - selection.start as isize
3792 ..old_range.end.to_offset_utf16(&snapshot).0 as isize
3793 - selection.start as isize,
3794 );
3795 old_range.clone()
3796 } else {
3797 s.start..s.end
3798 }
3799 }));
3800 break;
3801 }
3802 }
3803 let text = &text[common_prefix_len..];
3804
3805 cx.emit(EditorEvent::InputHandled {
3806 utf16_range_to_replace: range_to_replace,
3807 text: text.into(),
3808 });
3809
3810 self.transact(cx, |this, cx| {
3811 if let Some(mut snippet) = snippet {
3812 snippet.text = text.to_string();
3813 for tabstop in snippet.tabstops.iter_mut().flatten() {
3814 tabstop.start -= common_prefix_len as isize;
3815 tabstop.end -= common_prefix_len as isize;
3816 }
3817
3818 this.insert_snippet(&ranges, snippet, cx).log_err();
3819 } else {
3820 this.buffer.update(cx, |buffer, cx| {
3821 buffer.edit(
3822 ranges.iter().map(|range| (range.clone(), text)),
3823 this.autoindent_mode.clone(),
3824 cx,
3825 );
3826 });
3827 }
3828
3829 this.refresh_inline_completion(true, cx);
3830 });
3831
3832 let provider = self.completion_provider.as_ref()?;
3833 let apply_edits = provider.apply_additional_edits_for_completion(
3834 buffer_handle,
3835 completion.clone(),
3836 true,
3837 cx,
3838 );
3839 Some(cx.foreground_executor().spawn(async move {
3840 apply_edits.await?;
3841 Ok(())
3842 }))
3843 }
3844
3845 pub fn toggle_code_actions(&mut self, action: &ToggleCodeActions, cx: &mut ViewContext<Self>) {
3846 let mut context_menu = self.context_menu.write();
3847 if let Some(ContextMenu::CodeActions(code_actions)) = context_menu.as_ref() {
3848 if code_actions.deployed_from_indicator == action.deployed_from_indicator {
3849 // Toggle if we're selecting the same one
3850 *context_menu = None;
3851 cx.notify();
3852 return;
3853 } else {
3854 // Otherwise, clear it and start a new one
3855 *context_menu = None;
3856 cx.notify();
3857 }
3858 }
3859 drop(context_menu);
3860 let snapshot = self.snapshot(cx);
3861 let deployed_from_indicator = action.deployed_from_indicator;
3862 let mut task = self.code_actions_task.take();
3863 let action = action.clone();
3864 cx.spawn(|this, mut cx| async move {
3865 while let Some(prev_task) = task {
3866 prev_task.await;
3867 task = this.update(&mut cx, |this, _| this.code_actions_task.take())?;
3868 }
3869
3870 let spawned_test_task = this.update(&mut cx, |this, cx| {
3871 if this.focus_handle.is_focused(cx) {
3872 let multibuffer_point = action
3873 .deployed_from_indicator
3874 .map(|row| DisplayPoint::new(row, 0).to_point(&snapshot))
3875 .unwrap_or_else(|| this.selections.newest::<Point>(cx).head());
3876 let (buffer, buffer_row) = snapshot
3877 .buffer_snapshot
3878 .buffer_line_for_row(MultiBufferRow(multibuffer_point.row))
3879 .and_then(|(buffer_snapshot, range)| {
3880 this.buffer
3881 .read(cx)
3882 .buffer(buffer_snapshot.remote_id())
3883 .map(|buffer| (buffer, range.start.row))
3884 })?;
3885 let (_, code_actions) = this
3886 .available_code_actions
3887 .clone()
3888 .and_then(|(location, code_actions)| {
3889 let snapshot = location.buffer.read(cx).snapshot();
3890 let point_range = location.range.to_point(&snapshot);
3891 let point_range = point_range.start.row..=point_range.end.row;
3892 if point_range.contains(&buffer_row) {
3893 Some((location, code_actions))
3894 } else {
3895 None
3896 }
3897 })
3898 .unzip();
3899 let buffer_id = buffer.read(cx).remote_id();
3900 let tasks = this
3901 .tasks
3902 .get(&(buffer_id, buffer_row))
3903 .map(|t| Arc::new(t.to_owned()));
3904 if tasks.is_none() && code_actions.is_none() {
3905 return None;
3906 }
3907
3908 this.completion_tasks.clear();
3909 this.discard_inline_completion(cx);
3910 let task_context = tasks.as_ref().zip(this.workspace.clone()).and_then(
3911 |(tasks, (workspace, _))| {
3912 let position = Point::new(buffer_row, tasks.1.column);
3913 let range_start = buffer.read(cx).anchor_at(position, Bias::Right);
3914 let location = Location {
3915 buffer: buffer.clone(),
3916 range: range_start..range_start,
3917 };
3918 workspace
3919 .update(cx, |workspace, cx| {
3920 tasks::task_context_for_location(workspace, location, cx)
3921 })
3922 .ok()
3923 .flatten()
3924 },
3925 );
3926 let tasks = tasks.zip(task_context).map(|(tasks, mut task_context)| {
3927 // Fill in the environmental variables from the tree-sitter captures
3928 let mut additional_task_variables = TaskVariables::default();
3929 for (capture_name, value) in tasks.1.extra_variables.clone() {
3930 additional_task_variables.insert(
3931 task::VariableName::Custom(capture_name.into()),
3932 value.clone(),
3933 );
3934 }
3935 task_context
3936 .task_variables
3937 .extend(additional_task_variables);
3938
3939 Arc::new(ResolvedTasks {
3940 templates: tasks
3941 .1
3942 .templates
3943 .iter()
3944 .filter_map(|(kind, template)| {
3945 template
3946 .resolve_task(&kind.to_id_base(), &task_context)
3947 .map(|task| (kind.clone(), task))
3948 })
3949 .collect(),
3950 position: snapshot
3951 .buffer_snapshot
3952 .anchor_before(Point::new(multibuffer_point.row, tasks.1.column)),
3953 })
3954 });
3955 let spawn_straight_away = tasks
3956 .as_ref()
3957 .map_or(false, |tasks| tasks.templates.len() == 1)
3958 && code_actions
3959 .as_ref()
3960 .map_or(true, |actions| actions.is_empty());
3961 *this.context_menu.write() = Some(ContextMenu::CodeActions(CodeActionsMenu {
3962 buffer,
3963 actions: CodeActionContents {
3964 tasks,
3965 actions: code_actions,
3966 },
3967 selected_item: Default::default(),
3968 scroll_handle: UniformListScrollHandle::default(),
3969 deployed_from_indicator,
3970 }));
3971 if spawn_straight_away {
3972 if let Some(task) =
3973 this.confirm_code_action(&ConfirmCodeAction { item_ix: Some(0) }, cx)
3974 {
3975 cx.notify();
3976 return Some(task);
3977 }
3978 }
3979 cx.notify();
3980 }
3981 Some(Task::ready(Ok(())))
3982 })?;
3983 if let Some(task) = spawned_test_task {
3984 task.await?;
3985 }
3986
3987 Ok::<_, anyhow::Error>(())
3988 })
3989 .detach_and_log_err(cx);
3990 }
3991
3992 pub fn confirm_code_action(
3993 &mut self,
3994 action: &ConfirmCodeAction,
3995 cx: &mut ViewContext<Self>,
3996 ) -> Option<Task<Result<()>>> {
3997 let actions_menu = if let ContextMenu::CodeActions(menu) = self.hide_context_menu(cx)? {
3998 menu
3999 } else {
4000 return None;
4001 };
4002 let action_ix = action.item_ix.unwrap_or(actions_menu.selected_item);
4003 let action = actions_menu.actions.get(action_ix)?;
4004 let title = action.label();
4005 let buffer = actions_menu.buffer;
4006 let workspace = self.workspace()?;
4007
4008 match action {
4009 CodeActionsItem::Task(task_source_kind, resolved_task) => {
4010 workspace.update(cx, |workspace, cx| {
4011 workspace::tasks::schedule_resolved_task(
4012 workspace,
4013 task_source_kind,
4014 resolved_task,
4015 false,
4016 cx,
4017 );
4018
4019 Some(Task::ready(Ok(())))
4020 })
4021 }
4022 CodeActionsItem::CodeAction(action) => {
4023 let apply_code_actions = workspace
4024 .read(cx)
4025 .project()
4026 .clone()
4027 .update(cx, |project, cx| {
4028 project.apply_code_action(buffer, action, true, cx)
4029 });
4030 let workspace = workspace.downgrade();
4031 Some(cx.spawn(|editor, cx| async move {
4032 let project_transaction = apply_code_actions.await?;
4033 Self::open_project_transaction(
4034 &editor,
4035 workspace,
4036 project_transaction,
4037 title,
4038 cx,
4039 )
4040 .await
4041 }))
4042 }
4043 }
4044 }
4045
4046 async fn open_project_transaction(
4047 this: &WeakView<Editor>,
4048 workspace: WeakView<Workspace>,
4049 transaction: ProjectTransaction,
4050 title: String,
4051 mut cx: AsyncWindowContext,
4052 ) -> Result<()> {
4053 let replica_id = this.update(&mut cx, |this, cx| this.replica_id(cx))?;
4054
4055 let mut entries = transaction.0.into_iter().collect::<Vec<_>>();
4056 cx.update(|cx| {
4057 entries.sort_unstable_by_key(|(buffer, _)| {
4058 buffer.read(cx).file().map(|f| f.path().clone())
4059 });
4060 })?;
4061
4062 // If the project transaction's edits are all contained within this editor, then
4063 // avoid opening a new editor to display them.
4064
4065 if let Some((buffer, transaction)) = entries.first() {
4066 if entries.len() == 1 {
4067 let excerpt = this.update(&mut cx, |editor, cx| {
4068 editor
4069 .buffer()
4070 .read(cx)
4071 .excerpt_containing(editor.selections.newest_anchor().head(), cx)
4072 })?;
4073 if let Some((_, excerpted_buffer, excerpt_range)) = excerpt {
4074 if excerpted_buffer == *buffer {
4075 let all_edits_within_excerpt = buffer.read_with(&cx, |buffer, _| {
4076 let excerpt_range = excerpt_range.to_offset(buffer);
4077 buffer
4078 .edited_ranges_for_transaction::<usize>(transaction)
4079 .all(|range| {
4080 excerpt_range.start <= range.start
4081 && excerpt_range.end >= range.end
4082 })
4083 })?;
4084
4085 if all_edits_within_excerpt {
4086 return Ok(());
4087 }
4088 }
4089 }
4090 }
4091 } else {
4092 return Ok(());
4093 }
4094
4095 let mut ranges_to_highlight = Vec::new();
4096 let excerpt_buffer = cx.new_model(|cx| {
4097 let mut multibuffer =
4098 MultiBuffer::new(replica_id, Capability::ReadWrite).with_title(title);
4099 for (buffer_handle, transaction) in &entries {
4100 let buffer = buffer_handle.read(cx);
4101 ranges_to_highlight.extend(
4102 multibuffer.push_excerpts_with_context_lines(
4103 buffer_handle.clone(),
4104 buffer
4105 .edited_ranges_for_transaction::<usize>(transaction)
4106 .collect(),
4107 DEFAULT_MULTIBUFFER_CONTEXT,
4108 cx,
4109 ),
4110 );
4111 }
4112 multibuffer.push_transaction(entries.iter().map(|(b, t)| (b, t)), cx);
4113 multibuffer
4114 })?;
4115
4116 workspace.update(&mut cx, |workspace, cx| {
4117 let project = workspace.project().clone();
4118 let editor =
4119 cx.new_view(|cx| Editor::for_multibuffer(excerpt_buffer, Some(project), cx));
4120 workspace.add_item_to_active_pane(Box::new(editor.clone()), None, cx);
4121 editor.update(cx, |editor, cx| {
4122 editor.highlight_background::<Self>(
4123 &ranges_to_highlight,
4124 |theme| theme.editor_highlighted_line_background,
4125 cx,
4126 );
4127 });
4128 })?;
4129
4130 Ok(())
4131 }
4132
4133 fn refresh_code_actions(&mut self, cx: &mut ViewContext<Self>) -> Option<()> {
4134 let project = self.project.clone()?;
4135 let buffer = self.buffer.read(cx);
4136 let newest_selection = self.selections.newest_anchor().clone();
4137 let (start_buffer, start) = buffer.text_anchor_for_position(newest_selection.start, cx)?;
4138 let (end_buffer, end) = buffer.text_anchor_for_position(newest_selection.end, cx)?;
4139 if start_buffer != end_buffer {
4140 return None;
4141 }
4142
4143 self.code_actions_task = Some(cx.spawn(|this, mut cx| async move {
4144 cx.background_executor()
4145 .timer(CODE_ACTIONS_DEBOUNCE_TIMEOUT)
4146 .await;
4147
4148 let actions = if let Ok(code_actions) = project.update(&mut cx, |project, cx| {
4149 project.code_actions(&start_buffer, start..end, cx)
4150 }) {
4151 code_actions.await
4152 } else {
4153 Vec::new()
4154 };
4155
4156 this.update(&mut cx, |this, cx| {
4157 this.available_code_actions = if actions.is_empty() {
4158 None
4159 } else {
4160 Some((
4161 Location {
4162 buffer: start_buffer,
4163 range: start..end,
4164 },
4165 actions.into(),
4166 ))
4167 };
4168 cx.notify();
4169 })
4170 .log_err();
4171 }));
4172 None
4173 }
4174
4175 fn start_inline_blame_timer(&mut self, cx: &mut ViewContext<Self>) {
4176 if let Some(delay) = ProjectSettings::get_global(cx).git.inline_blame_delay() {
4177 self.show_git_blame_inline = false;
4178
4179 self.show_git_blame_inline_delay_task = Some(cx.spawn(|this, mut cx| async move {
4180 cx.background_executor().timer(delay).await;
4181
4182 this.update(&mut cx, |this, cx| {
4183 this.show_git_blame_inline = true;
4184 cx.notify();
4185 })
4186 .log_err();
4187 }));
4188 }
4189 }
4190
4191 fn refresh_document_highlights(&mut self, cx: &mut ViewContext<Self>) -> Option<()> {
4192 if self.pending_rename.is_some() {
4193 return None;
4194 }
4195
4196 let project = self.project.clone()?;
4197 let buffer = self.buffer.read(cx);
4198 let newest_selection = self.selections.newest_anchor().clone();
4199 let cursor_position = newest_selection.head();
4200 let (cursor_buffer, cursor_buffer_position) =
4201 buffer.text_anchor_for_position(cursor_position, cx)?;
4202 let (tail_buffer, _) = buffer.text_anchor_for_position(newest_selection.tail(), cx)?;
4203 if cursor_buffer != tail_buffer {
4204 return None;
4205 }
4206
4207 self.document_highlights_task = Some(cx.spawn(|this, mut cx| async move {
4208 cx.background_executor()
4209 .timer(DOCUMENT_HIGHLIGHTS_DEBOUNCE_TIMEOUT)
4210 .await;
4211
4212 let highlights = if let Some(highlights) = project
4213 .update(&mut cx, |project, cx| {
4214 project.document_highlights(&cursor_buffer, cursor_buffer_position, cx)
4215 })
4216 .log_err()
4217 {
4218 highlights.await.log_err()
4219 } else {
4220 None
4221 };
4222
4223 if let Some(highlights) = highlights {
4224 this.update(&mut cx, |this, cx| {
4225 if this.pending_rename.is_some() {
4226 return;
4227 }
4228
4229 let buffer_id = cursor_position.buffer_id;
4230 let buffer = this.buffer.read(cx);
4231 if !buffer
4232 .text_anchor_for_position(cursor_position, cx)
4233 .map_or(false, |(buffer, _)| buffer == cursor_buffer)
4234 {
4235 return;
4236 }
4237
4238 let cursor_buffer_snapshot = cursor_buffer.read(cx);
4239 let mut write_ranges = Vec::new();
4240 let mut read_ranges = Vec::new();
4241 for highlight in highlights {
4242 for (excerpt_id, excerpt_range) in
4243 buffer.excerpts_for_buffer(&cursor_buffer, cx)
4244 {
4245 let start = highlight
4246 .range
4247 .start
4248 .max(&excerpt_range.context.start, cursor_buffer_snapshot);
4249 let end = highlight
4250 .range
4251 .end
4252 .min(&excerpt_range.context.end, cursor_buffer_snapshot);
4253 if start.cmp(&end, cursor_buffer_snapshot).is_ge() {
4254 continue;
4255 }
4256
4257 let range = Anchor {
4258 buffer_id,
4259 excerpt_id: excerpt_id,
4260 text_anchor: start,
4261 }..Anchor {
4262 buffer_id,
4263 excerpt_id,
4264 text_anchor: end,
4265 };
4266 if highlight.kind == lsp::DocumentHighlightKind::WRITE {
4267 write_ranges.push(range);
4268 } else {
4269 read_ranges.push(range);
4270 }
4271 }
4272 }
4273
4274 this.highlight_background::<DocumentHighlightRead>(
4275 &read_ranges,
4276 |theme| theme.editor_document_highlight_read_background,
4277 cx,
4278 );
4279 this.highlight_background::<DocumentHighlightWrite>(
4280 &write_ranges,
4281 |theme| theme.editor_document_highlight_write_background,
4282 cx,
4283 );
4284 cx.notify();
4285 })
4286 .log_err();
4287 }
4288 }));
4289 None
4290 }
4291
4292 fn refresh_inline_completion(
4293 &mut self,
4294 debounce: bool,
4295 cx: &mut ViewContext<Self>,
4296 ) -> Option<()> {
4297 let provider = self.inline_completion_provider()?;
4298 let cursor = self.selections.newest_anchor().head();
4299 let (buffer, cursor_buffer_position) =
4300 self.buffer.read(cx).text_anchor_for_position(cursor, cx)?;
4301 if !self.show_inline_completions
4302 || !provider.is_enabled(&buffer, cursor_buffer_position, cx)
4303 {
4304 self.discard_inline_completion(cx);
4305 return None;
4306 }
4307
4308 self.update_visible_inline_completion(cx);
4309 provider.refresh(buffer, cursor_buffer_position, debounce, cx);
4310 Some(())
4311 }
4312
4313 fn cycle_inline_completion(
4314 &mut self,
4315 direction: Direction,
4316 cx: &mut ViewContext<Self>,
4317 ) -> Option<()> {
4318 let provider = self.inline_completion_provider()?;
4319 let cursor = self.selections.newest_anchor().head();
4320 let (buffer, cursor_buffer_position) =
4321 self.buffer.read(cx).text_anchor_for_position(cursor, cx)?;
4322 if !self.show_inline_completions
4323 || !provider.is_enabled(&buffer, cursor_buffer_position, cx)
4324 {
4325 return None;
4326 }
4327
4328 provider.cycle(buffer, cursor_buffer_position, direction, cx);
4329 self.update_visible_inline_completion(cx);
4330
4331 Some(())
4332 }
4333
4334 pub fn show_inline_completion(&mut self, _: &ShowInlineCompletion, cx: &mut ViewContext<Self>) {
4335 if !self.has_active_inline_completion(cx) {
4336 self.refresh_inline_completion(false, cx);
4337 return;
4338 }
4339
4340 self.update_visible_inline_completion(cx);
4341 }
4342
4343 pub fn display_cursor_names(&mut self, _: &DisplayCursorNames, cx: &mut ViewContext<Self>) {
4344 self.show_cursor_names(cx);
4345 }
4346
4347 fn show_cursor_names(&mut self, cx: &mut ViewContext<Self>) {
4348 self.show_cursor_names = true;
4349 cx.notify();
4350 cx.spawn(|this, mut cx| async move {
4351 cx.background_executor().timer(CURSORS_VISIBLE_FOR).await;
4352 this.update(&mut cx, |this, cx| {
4353 this.show_cursor_names = false;
4354 cx.notify()
4355 })
4356 .ok()
4357 })
4358 .detach();
4359 }
4360
4361 pub fn next_inline_completion(&mut self, _: &NextInlineCompletion, cx: &mut ViewContext<Self>) {
4362 if self.has_active_inline_completion(cx) {
4363 self.cycle_inline_completion(Direction::Next, cx);
4364 } else {
4365 let is_copilot_disabled = self.refresh_inline_completion(false, cx).is_none();
4366 if is_copilot_disabled {
4367 cx.propagate();
4368 }
4369 }
4370 }
4371
4372 pub fn previous_inline_completion(
4373 &mut self,
4374 _: &PreviousInlineCompletion,
4375 cx: &mut ViewContext<Self>,
4376 ) {
4377 if self.has_active_inline_completion(cx) {
4378 self.cycle_inline_completion(Direction::Prev, cx);
4379 } else {
4380 let is_copilot_disabled = self.refresh_inline_completion(false, cx).is_none();
4381 if is_copilot_disabled {
4382 cx.propagate();
4383 }
4384 }
4385 }
4386
4387 fn accept_inline_completion(&mut self, cx: &mut ViewContext<Self>) -> bool {
4388 if let Some(completion) = self.take_active_inline_completion(cx) {
4389 if let Some(provider) = self.inline_completion_provider() {
4390 provider.accept(cx);
4391 }
4392
4393 cx.emit(EditorEvent::InputHandled {
4394 utf16_range_to_replace: None,
4395 text: completion.text.to_string().into(),
4396 });
4397 self.insert_with_autoindent_mode(&completion.text.to_string(), None, cx);
4398 self.refresh_inline_completion(true, cx);
4399 cx.notify();
4400 true
4401 } else {
4402 false
4403 }
4404 }
4405
4406 pub fn accept_partial_inline_completion(
4407 &mut self,
4408 _: &AcceptPartialInlineCompletion,
4409 cx: &mut ViewContext<Self>,
4410 ) {
4411 if self.selections.count() == 1 && self.has_active_inline_completion(cx) {
4412 if let Some(completion) = self.take_active_inline_completion(cx) {
4413 let mut partial_completion = completion
4414 .text
4415 .chars()
4416 .by_ref()
4417 .take_while(|c| c.is_alphabetic())
4418 .collect::<String>();
4419 if partial_completion.is_empty() {
4420 partial_completion = completion
4421 .text
4422 .chars()
4423 .by_ref()
4424 .take_while(|c| c.is_whitespace() || !c.is_alphabetic())
4425 .collect::<String>();
4426 }
4427
4428 cx.emit(EditorEvent::InputHandled {
4429 utf16_range_to_replace: None,
4430 text: partial_completion.clone().into(),
4431 });
4432 self.insert_with_autoindent_mode(&partial_completion, None, cx);
4433 self.refresh_inline_completion(true, cx);
4434 cx.notify();
4435 }
4436 }
4437 }
4438
4439 fn discard_inline_completion(&mut self, cx: &mut ViewContext<Self>) -> bool {
4440 if let Some(provider) = self.inline_completion_provider() {
4441 provider.discard(cx);
4442 }
4443
4444 self.take_active_inline_completion(cx).is_some()
4445 }
4446
4447 pub fn has_active_inline_completion(&self, cx: &AppContext) -> bool {
4448 if let Some(completion) = self.active_inline_completion.as_ref() {
4449 let buffer = self.buffer.read(cx).read(cx);
4450 completion.position.is_valid(&buffer)
4451 } else {
4452 false
4453 }
4454 }
4455
4456 fn take_active_inline_completion(&mut self, cx: &mut ViewContext<Self>) -> Option<Inlay> {
4457 let completion = self.active_inline_completion.take()?;
4458 self.display_map.update(cx, |map, cx| {
4459 map.splice_inlays(vec![completion.id], Default::default(), cx);
4460 });
4461 let buffer = self.buffer.read(cx).read(cx);
4462
4463 if completion.position.is_valid(&buffer) {
4464 Some(completion)
4465 } else {
4466 None
4467 }
4468 }
4469
4470 fn update_visible_inline_completion(&mut self, cx: &mut ViewContext<Self>) {
4471 let selection = self.selections.newest_anchor();
4472 let cursor = selection.head();
4473
4474 if self.context_menu.read().is_none()
4475 && self.completion_tasks.is_empty()
4476 && selection.start == selection.end
4477 {
4478 if let Some(provider) = self.inline_completion_provider() {
4479 if let Some((buffer, cursor_buffer_position)) =
4480 self.buffer.read(cx).text_anchor_for_position(cursor, cx)
4481 {
4482 if let Some(text) =
4483 provider.active_completion_text(&buffer, cursor_buffer_position, cx)
4484 {
4485 let text = Rope::from(text);
4486 let mut to_remove = Vec::new();
4487 if let Some(completion) = self.active_inline_completion.take() {
4488 to_remove.push(completion.id);
4489 }
4490
4491 let completion_inlay =
4492 Inlay::suggestion(post_inc(&mut self.next_inlay_id), cursor, text);
4493 self.active_inline_completion = Some(completion_inlay.clone());
4494 self.display_map.update(cx, move |map, cx| {
4495 map.splice_inlays(to_remove, vec![completion_inlay], cx)
4496 });
4497 cx.notify();
4498 return;
4499 }
4500 }
4501 }
4502 }
4503
4504 self.discard_inline_completion(cx);
4505 }
4506
4507 fn inline_completion_provider(&self) -> Option<Arc<dyn InlineCompletionProviderHandle>> {
4508 Some(self.inline_completion_provider.as_ref()?.provider.clone())
4509 }
4510
4511 fn render_code_actions_indicator(
4512 &self,
4513 _style: &EditorStyle,
4514 row: DisplayRow,
4515 is_active: bool,
4516 cx: &mut ViewContext<Self>,
4517 ) -> Option<IconButton> {
4518 if self.available_code_actions.is_some() {
4519 Some(
4520 IconButton::new("code_actions_indicator", ui::IconName::Bolt)
4521 .icon_size(IconSize::XSmall)
4522 .size(ui::ButtonSize::None)
4523 .icon_color(Color::Muted)
4524 .selected(is_active)
4525 .on_click(cx.listener(move |editor, _e, cx| {
4526 editor.focus(cx);
4527 editor.toggle_code_actions(
4528 &ToggleCodeActions {
4529 deployed_from_indicator: Some(row),
4530 },
4531 cx,
4532 );
4533 })),
4534 )
4535 } else {
4536 None
4537 }
4538 }
4539
4540 fn clear_tasks(&mut self) {
4541 self.tasks.clear()
4542 }
4543
4544 fn insert_tasks(&mut self, key: (BufferId, BufferRow), value: (usize, RunnableTasks)) {
4545 if let Some(_) = self.tasks.insert(key, value) {
4546 // This case should hopefully be rare, but just in case...
4547 log::error!("multiple different run targets found on a single line, only the last target will be rendered")
4548 }
4549 }
4550
4551 fn render_run_indicator(
4552 &self,
4553 _style: &EditorStyle,
4554 is_active: bool,
4555 row: DisplayRow,
4556 cx: &mut ViewContext<Self>,
4557 ) -> IconButton {
4558 IconButton::new("run_indicator", ui::IconName::Play)
4559 .icon_size(IconSize::XSmall)
4560 .size(ui::ButtonSize::None)
4561 .icon_color(Color::Muted)
4562 .selected(is_active)
4563 .on_click(cx.listener(move |editor, _e, cx| {
4564 editor.focus(cx);
4565 editor.toggle_code_actions(
4566 &ToggleCodeActions {
4567 deployed_from_indicator: Some(row),
4568 },
4569 cx,
4570 );
4571 }))
4572 }
4573
4574 pub fn render_fold_indicators(
4575 &mut self,
4576 fold_data: Vec<Option<(FoldStatus, MultiBufferRow, bool)>>,
4577 _style: &EditorStyle,
4578 gutter_hovered: bool,
4579 _line_height: Pixels,
4580 _gutter_margin: Pixels,
4581 cx: &mut ViewContext<Self>,
4582 ) -> Vec<Option<AnyElement>> {
4583 fold_data
4584 .iter()
4585 .enumerate()
4586 .map(|(ix, fold_data)| {
4587 fold_data
4588 .map(|(fold_status, buffer_row, active)| {
4589 (active || gutter_hovered || fold_status == FoldStatus::Folded).then(|| {
4590 IconButton::new(ix, ui::IconName::ChevronDown)
4591 .on_click(cx.listener(move |this, _e, cx| match fold_status {
4592 FoldStatus::Folded => {
4593 this.unfold_at(&UnfoldAt { buffer_row }, cx);
4594 }
4595 FoldStatus::Foldable => {
4596 this.fold_at(&FoldAt { buffer_row }, cx);
4597 }
4598 }))
4599 .icon_color(ui::Color::Muted)
4600 .icon_size(ui::IconSize::Small)
4601 .selected(fold_status == FoldStatus::Folded)
4602 .selected_icon(ui::IconName::ChevronRight)
4603 .size(ui::ButtonSize::None)
4604 .into_any_element()
4605 })
4606 })
4607 .flatten()
4608 })
4609 .collect()
4610 }
4611
4612 pub fn context_menu_visible(&self) -> bool {
4613 self.context_menu
4614 .read()
4615 .as_ref()
4616 .map_or(false, |menu| menu.visible())
4617 }
4618
4619 fn render_context_menu(
4620 &self,
4621 cursor_position: DisplayPoint,
4622 style: &EditorStyle,
4623 max_height: Pixels,
4624 cx: &mut ViewContext<Editor>,
4625 ) -> Option<(ContextMenuOrigin, AnyElement)> {
4626 self.context_menu.read().as_ref().map(|menu| {
4627 menu.render(
4628 cursor_position,
4629 style,
4630 max_height,
4631 self.workspace.as_ref().map(|(w, _)| w.clone()),
4632 cx,
4633 )
4634 })
4635 }
4636
4637 fn hide_context_menu(&mut self, cx: &mut ViewContext<Self>) -> Option<ContextMenu> {
4638 cx.notify();
4639 self.completion_tasks.clear();
4640 let context_menu = self.context_menu.write().take();
4641 if context_menu.is_some() {
4642 self.update_visible_inline_completion(cx);
4643 }
4644 context_menu
4645 }
4646
4647 pub fn insert_snippet(
4648 &mut self,
4649 insertion_ranges: &[Range<usize>],
4650 snippet: Snippet,
4651 cx: &mut ViewContext<Self>,
4652 ) -> Result<()> {
4653 struct Tabstop<T> {
4654 is_end_tabstop: bool,
4655 ranges: Vec<Range<T>>,
4656 }
4657
4658 let tabstops = self.buffer.update(cx, |buffer, cx| {
4659 let snippet_text: Arc<str> = snippet.text.clone().into();
4660 buffer.edit(
4661 insertion_ranges
4662 .iter()
4663 .cloned()
4664 .map(|range| (range, snippet_text.clone())),
4665 Some(AutoindentMode::EachLine),
4666 cx,
4667 );
4668
4669 let snapshot = &*buffer.read(cx);
4670 let snippet = &snippet;
4671 snippet
4672 .tabstops
4673 .iter()
4674 .map(|tabstop| {
4675 let is_end_tabstop = tabstop.first().map_or(false, |tabstop| {
4676 tabstop.is_empty() && tabstop.start == snippet.text.len() as isize
4677 });
4678 let mut tabstop_ranges = tabstop
4679 .iter()
4680 .flat_map(|tabstop_range| {
4681 let mut delta = 0_isize;
4682 insertion_ranges.iter().map(move |insertion_range| {
4683 let insertion_start = insertion_range.start as isize + delta;
4684 delta +=
4685 snippet.text.len() as isize - insertion_range.len() as isize;
4686
4687 let start = ((insertion_start + tabstop_range.start) as usize)
4688 .min(snapshot.len());
4689 let end = ((insertion_start + tabstop_range.end) as usize)
4690 .min(snapshot.len());
4691 snapshot.anchor_before(start)..snapshot.anchor_after(end)
4692 })
4693 })
4694 .collect::<Vec<_>>();
4695 tabstop_ranges.sort_unstable_by(|a, b| a.start.cmp(&b.start, snapshot));
4696
4697 Tabstop {
4698 is_end_tabstop,
4699 ranges: tabstop_ranges,
4700 }
4701 })
4702 .collect::<Vec<_>>()
4703 });
4704
4705 if let Some(tabstop) = tabstops.first() {
4706 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
4707 s.select_ranges(tabstop.ranges.iter().cloned());
4708 });
4709
4710 // If we're already at the last tabstop and it's at the end of the snippet,
4711 // we're done, we don't need to keep the state around.
4712 if !tabstop.is_end_tabstop {
4713 let ranges = tabstops
4714 .into_iter()
4715 .map(|tabstop| tabstop.ranges)
4716 .collect::<Vec<_>>();
4717 self.snippet_stack.push(SnippetState {
4718 active_index: 0,
4719 ranges,
4720 });
4721 }
4722
4723 // Check whether the just-entered snippet ends with an auto-closable bracket.
4724 if self.autoclose_regions.is_empty() {
4725 let snapshot = self.buffer.read(cx).snapshot(cx);
4726 for selection in &mut self.selections.all::<Point>(cx) {
4727 let selection_head = selection.head();
4728 let Some(scope) = snapshot.language_scope_at(selection_head) else {
4729 continue;
4730 };
4731
4732 let mut bracket_pair = None;
4733 let next_chars = snapshot.chars_at(selection_head).collect::<String>();
4734 let prev_chars = snapshot
4735 .reversed_chars_at(selection_head)
4736 .collect::<String>();
4737 for (pair, enabled) in scope.brackets() {
4738 if enabled
4739 && pair.close
4740 && prev_chars.starts_with(pair.start.as_str())
4741 && next_chars.starts_with(pair.end.as_str())
4742 {
4743 bracket_pair = Some(pair.clone());
4744 break;
4745 }
4746 }
4747 if let Some(pair) = bracket_pair {
4748 let start = snapshot.anchor_after(selection_head);
4749 let end = snapshot.anchor_after(selection_head);
4750 self.autoclose_regions.push(AutocloseRegion {
4751 selection_id: selection.id,
4752 range: start..end,
4753 pair,
4754 });
4755 }
4756 }
4757 }
4758 }
4759 Ok(())
4760 }
4761
4762 pub fn move_to_next_snippet_tabstop(&mut self, cx: &mut ViewContext<Self>) -> bool {
4763 self.move_to_snippet_tabstop(Bias::Right, cx)
4764 }
4765
4766 pub fn move_to_prev_snippet_tabstop(&mut self, cx: &mut ViewContext<Self>) -> bool {
4767 self.move_to_snippet_tabstop(Bias::Left, cx)
4768 }
4769
4770 pub fn move_to_snippet_tabstop(&mut self, bias: Bias, cx: &mut ViewContext<Self>) -> bool {
4771 if let Some(mut snippet) = self.snippet_stack.pop() {
4772 match bias {
4773 Bias::Left => {
4774 if snippet.active_index > 0 {
4775 snippet.active_index -= 1;
4776 } else {
4777 self.snippet_stack.push(snippet);
4778 return false;
4779 }
4780 }
4781 Bias::Right => {
4782 if snippet.active_index + 1 < snippet.ranges.len() {
4783 snippet.active_index += 1;
4784 } else {
4785 self.snippet_stack.push(snippet);
4786 return false;
4787 }
4788 }
4789 }
4790 if let Some(current_ranges) = snippet.ranges.get(snippet.active_index) {
4791 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
4792 s.select_anchor_ranges(current_ranges.iter().cloned())
4793 });
4794 // If snippet state is not at the last tabstop, push it back on the stack
4795 if snippet.active_index + 1 < snippet.ranges.len() {
4796 self.snippet_stack.push(snippet);
4797 }
4798 return true;
4799 }
4800 }
4801
4802 false
4803 }
4804
4805 pub fn clear(&mut self, cx: &mut ViewContext<Self>) {
4806 self.transact(cx, |this, cx| {
4807 this.select_all(&SelectAll, cx);
4808 this.insert("", cx);
4809 });
4810 }
4811
4812 pub fn backspace(&mut self, _: &Backspace, cx: &mut ViewContext<Self>) {
4813 self.transact(cx, |this, cx| {
4814 this.select_autoclose_pair(cx);
4815 let mut selections = this.selections.all::<MultiBufferPoint>(cx);
4816 if !this.selections.line_mode {
4817 let display_map = this.display_map.update(cx, |map, cx| map.snapshot(cx));
4818 for selection in &mut selections {
4819 if selection.is_empty() {
4820 let old_head = selection.head();
4821 let mut new_head =
4822 movement::left(&display_map, old_head.to_display_point(&display_map))
4823 .to_point(&display_map);
4824 if let Some((buffer, line_buffer_range)) = display_map
4825 .buffer_snapshot
4826 .buffer_line_for_row(MultiBufferRow(old_head.row))
4827 {
4828 let indent_size =
4829 buffer.indent_size_for_line(line_buffer_range.start.row);
4830 let indent_len = match indent_size.kind {
4831 IndentKind::Space => {
4832 buffer.settings_at(line_buffer_range.start, cx).tab_size
4833 }
4834 IndentKind::Tab => NonZeroU32::new(1).unwrap(),
4835 };
4836 if old_head.column <= indent_size.len && old_head.column > 0 {
4837 let indent_len = indent_len.get();
4838 new_head = cmp::min(
4839 new_head,
4840 MultiBufferPoint::new(
4841 old_head.row,
4842 ((old_head.column - 1) / indent_len) * indent_len,
4843 ),
4844 );
4845 }
4846 }
4847
4848 selection.set_head(new_head, SelectionGoal::None);
4849 }
4850 }
4851 }
4852
4853 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
4854 this.insert("", cx);
4855 this.refresh_inline_completion(true, cx);
4856 });
4857 }
4858
4859 pub fn delete(&mut self, _: &Delete, cx: &mut ViewContext<Self>) {
4860 self.transact(cx, |this, cx| {
4861 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
4862 let line_mode = s.line_mode;
4863 s.move_with(|map, selection| {
4864 if selection.is_empty() && !line_mode {
4865 let cursor = movement::right(map, selection.head());
4866 selection.end = cursor;
4867 selection.reversed = true;
4868 selection.goal = SelectionGoal::None;
4869 }
4870 })
4871 });
4872 this.insert("", cx);
4873 this.refresh_inline_completion(true, cx);
4874 });
4875 }
4876
4877 pub fn tab_prev(&mut self, _: &TabPrev, cx: &mut ViewContext<Self>) {
4878 if self.move_to_prev_snippet_tabstop(cx) {
4879 return;
4880 }
4881
4882 self.outdent(&Outdent, cx);
4883 }
4884
4885 pub fn tab(&mut self, _: &Tab, cx: &mut ViewContext<Self>) {
4886 if self.move_to_next_snippet_tabstop(cx) || self.read_only(cx) {
4887 return;
4888 }
4889
4890 let mut selections = self.selections.all_adjusted(cx);
4891 let buffer = self.buffer.read(cx);
4892 let snapshot = buffer.snapshot(cx);
4893 let rows_iter = selections.iter().map(|s| s.head().row);
4894 let suggested_indents = snapshot.suggested_indents(rows_iter, cx);
4895
4896 let mut edits = Vec::new();
4897 let mut prev_edited_row = 0;
4898 let mut row_delta = 0;
4899 for selection in &mut selections {
4900 if selection.start.row != prev_edited_row {
4901 row_delta = 0;
4902 }
4903 prev_edited_row = selection.end.row;
4904
4905 // If the selection is non-empty, then increase the indentation of the selected lines.
4906 if !selection.is_empty() {
4907 row_delta =
4908 Self::indent_selection(buffer, &snapshot, selection, &mut edits, row_delta, cx);
4909 continue;
4910 }
4911
4912 // If the selection is empty and the cursor is in the leading whitespace before the
4913 // suggested indentation, then auto-indent the line.
4914 let cursor = selection.head();
4915 let current_indent = snapshot.indent_size_for_line(MultiBufferRow(cursor.row));
4916 if let Some(suggested_indent) =
4917 suggested_indents.get(&MultiBufferRow(cursor.row)).copied()
4918 {
4919 if cursor.column < suggested_indent.len
4920 && cursor.column <= current_indent.len
4921 && current_indent.len <= suggested_indent.len
4922 {
4923 selection.start = Point::new(cursor.row, suggested_indent.len);
4924 selection.end = selection.start;
4925 if row_delta == 0 {
4926 edits.extend(Buffer::edit_for_indent_size_adjustment(
4927 cursor.row,
4928 current_indent,
4929 suggested_indent,
4930 ));
4931 row_delta = suggested_indent.len - current_indent.len;
4932 }
4933 continue;
4934 }
4935 }
4936
4937 // Accept copilot completion if there is only one selection and the cursor is not
4938 // in the leading whitespace.
4939 if self.selections.count() == 1
4940 && cursor.column >= current_indent.len
4941 && self.has_active_inline_completion(cx)
4942 {
4943 self.accept_inline_completion(cx);
4944 return;
4945 }
4946
4947 // Otherwise, insert a hard or soft tab.
4948 let settings = buffer.settings_at(cursor, cx);
4949 let tab_size = if settings.hard_tabs {
4950 IndentSize::tab()
4951 } else {
4952 let tab_size = settings.tab_size.get();
4953 let char_column = snapshot
4954 .text_for_range(Point::new(cursor.row, 0)..cursor)
4955 .flat_map(str::chars)
4956 .count()
4957 + row_delta as usize;
4958 let chars_to_next_tab_stop = tab_size - (char_column as u32 % tab_size);
4959 IndentSize::spaces(chars_to_next_tab_stop)
4960 };
4961 selection.start = Point::new(cursor.row, cursor.column + row_delta + tab_size.len);
4962 selection.end = selection.start;
4963 edits.push((cursor..cursor, tab_size.chars().collect::<String>()));
4964 row_delta += tab_size.len;
4965 }
4966
4967 self.transact(cx, |this, cx| {
4968 this.buffer.update(cx, |b, cx| b.edit(edits, None, cx));
4969 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
4970 this.refresh_inline_completion(true, cx);
4971 });
4972 }
4973
4974 pub fn indent(&mut self, _: &Indent, cx: &mut ViewContext<Self>) {
4975 if self.read_only(cx) {
4976 return;
4977 }
4978 let mut selections = self.selections.all::<Point>(cx);
4979 let mut prev_edited_row = 0;
4980 let mut row_delta = 0;
4981 let mut edits = Vec::new();
4982 let buffer = self.buffer.read(cx);
4983 let snapshot = buffer.snapshot(cx);
4984 for selection in &mut selections {
4985 if selection.start.row != prev_edited_row {
4986 row_delta = 0;
4987 }
4988 prev_edited_row = selection.end.row;
4989
4990 row_delta =
4991 Self::indent_selection(buffer, &snapshot, selection, &mut edits, row_delta, cx);
4992 }
4993
4994 self.transact(cx, |this, cx| {
4995 this.buffer.update(cx, |b, cx| b.edit(edits, None, cx));
4996 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
4997 });
4998 }
4999
5000 fn indent_selection(
5001 buffer: &MultiBuffer,
5002 snapshot: &MultiBufferSnapshot,
5003 selection: &mut Selection<Point>,
5004 edits: &mut Vec<(Range<Point>, String)>,
5005 delta_for_start_row: u32,
5006 cx: &AppContext,
5007 ) -> u32 {
5008 let settings = buffer.settings_at(selection.start, cx);
5009 let tab_size = settings.tab_size.get();
5010 let indent_kind = if settings.hard_tabs {
5011 IndentKind::Tab
5012 } else {
5013 IndentKind::Space
5014 };
5015 let mut start_row = selection.start.row;
5016 let mut end_row = selection.end.row + 1;
5017
5018 // If a selection ends at the beginning of a line, don't indent
5019 // that last line.
5020 if selection.end.column == 0 && selection.end.row > selection.start.row {
5021 end_row -= 1;
5022 }
5023
5024 // Avoid re-indenting a row that has already been indented by a
5025 // previous selection, but still update this selection's column
5026 // to reflect that indentation.
5027 if delta_for_start_row > 0 {
5028 start_row += 1;
5029 selection.start.column += delta_for_start_row;
5030 if selection.end.row == selection.start.row {
5031 selection.end.column += delta_for_start_row;
5032 }
5033 }
5034
5035 let mut delta_for_end_row = 0;
5036 let has_multiple_rows = start_row + 1 != end_row;
5037 for row in start_row..end_row {
5038 let current_indent = snapshot.indent_size_for_line(MultiBufferRow(row));
5039 let indent_delta = match (current_indent.kind, indent_kind) {
5040 (IndentKind::Space, IndentKind::Space) => {
5041 let columns_to_next_tab_stop = tab_size - (current_indent.len % tab_size);
5042 IndentSize::spaces(columns_to_next_tab_stop)
5043 }
5044 (IndentKind::Tab, IndentKind::Space) => IndentSize::spaces(tab_size),
5045 (_, IndentKind::Tab) => IndentSize::tab(),
5046 };
5047
5048 let start = if has_multiple_rows || current_indent.len < selection.start.column {
5049 0
5050 } else {
5051 selection.start.column
5052 };
5053 let row_start = Point::new(row, start);
5054 edits.push((
5055 row_start..row_start,
5056 indent_delta.chars().collect::<String>(),
5057 ));
5058
5059 // Update this selection's endpoints to reflect the indentation.
5060 if row == selection.start.row {
5061 selection.start.column += indent_delta.len;
5062 }
5063 if row == selection.end.row {
5064 selection.end.column += indent_delta.len;
5065 delta_for_end_row = indent_delta.len;
5066 }
5067 }
5068
5069 if selection.start.row == selection.end.row {
5070 delta_for_start_row + delta_for_end_row
5071 } else {
5072 delta_for_end_row
5073 }
5074 }
5075
5076 pub fn outdent(&mut self, _: &Outdent, cx: &mut ViewContext<Self>) {
5077 if self.read_only(cx) {
5078 return;
5079 }
5080 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
5081 let selections = self.selections.all::<Point>(cx);
5082 let mut deletion_ranges = Vec::new();
5083 let mut last_outdent = None;
5084 {
5085 let buffer = self.buffer.read(cx);
5086 let snapshot = buffer.snapshot(cx);
5087 for selection in &selections {
5088 let settings = buffer.settings_at(selection.start, cx);
5089 let tab_size = settings.tab_size.get();
5090 let mut rows = selection.spanned_rows(false, &display_map);
5091
5092 // Avoid re-outdenting a row that has already been outdented by a
5093 // previous selection.
5094 if let Some(last_row) = last_outdent {
5095 if last_row == rows.start {
5096 rows.start = rows.start.next_row();
5097 }
5098 }
5099 let has_multiple_rows = rows.len() > 1;
5100 for row in rows.iter_rows() {
5101 let indent_size = snapshot.indent_size_for_line(row);
5102 if indent_size.len > 0 {
5103 let deletion_len = match indent_size.kind {
5104 IndentKind::Space => {
5105 let columns_to_prev_tab_stop = indent_size.len % tab_size;
5106 if columns_to_prev_tab_stop == 0 {
5107 tab_size
5108 } else {
5109 columns_to_prev_tab_stop
5110 }
5111 }
5112 IndentKind::Tab => 1,
5113 };
5114 let start = if has_multiple_rows
5115 || deletion_len > selection.start.column
5116 || indent_size.len < selection.start.column
5117 {
5118 0
5119 } else {
5120 selection.start.column - deletion_len
5121 };
5122 deletion_ranges.push(
5123 Point::new(row.0, start)..Point::new(row.0, start + deletion_len),
5124 );
5125 last_outdent = Some(row);
5126 }
5127 }
5128 }
5129 }
5130
5131 self.transact(cx, |this, cx| {
5132 this.buffer.update(cx, |buffer, cx| {
5133 let empty_str: Arc<str> = "".into();
5134 buffer.edit(
5135 deletion_ranges
5136 .into_iter()
5137 .map(|range| (range, empty_str.clone())),
5138 None,
5139 cx,
5140 );
5141 });
5142 let selections = this.selections.all::<usize>(cx);
5143 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
5144 });
5145 }
5146
5147 pub fn delete_line(&mut self, _: &DeleteLine, cx: &mut ViewContext<Self>) {
5148 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
5149 let selections = self.selections.all::<Point>(cx);
5150
5151 let mut new_cursors = Vec::new();
5152 let mut edit_ranges = Vec::new();
5153 let mut selections = selections.iter().peekable();
5154 while let Some(selection) = selections.next() {
5155 let mut rows = selection.spanned_rows(false, &display_map);
5156 let goal_display_column = selection.head().to_display_point(&display_map).column();
5157
5158 // Accumulate contiguous regions of rows that we want to delete.
5159 while let Some(next_selection) = selections.peek() {
5160 let next_rows = next_selection.spanned_rows(false, &display_map);
5161 if next_rows.start <= rows.end {
5162 rows.end = next_rows.end;
5163 selections.next().unwrap();
5164 } else {
5165 break;
5166 }
5167 }
5168
5169 let buffer = &display_map.buffer_snapshot;
5170 let mut edit_start = Point::new(rows.start.0, 0).to_offset(buffer);
5171 let edit_end;
5172 let cursor_buffer_row;
5173 if buffer.max_point().row >= rows.end.0 {
5174 // If there's a line after the range, delete the \n from the end of the row range
5175 // and position the cursor on the next line.
5176 edit_end = Point::new(rows.end.0, 0).to_offset(buffer);
5177 cursor_buffer_row = rows.end;
5178 } else {
5179 // If there isn't a line after the range, delete the \n from the line before the
5180 // start of the row range and position the cursor there.
5181 edit_start = edit_start.saturating_sub(1);
5182 edit_end = buffer.len();
5183 cursor_buffer_row = rows.start.previous_row();
5184 }
5185
5186 let mut cursor = Point::new(cursor_buffer_row.0, 0).to_display_point(&display_map);
5187 *cursor.column_mut() =
5188 cmp::min(goal_display_column, display_map.line_len(cursor.row()));
5189
5190 new_cursors.push((
5191 selection.id,
5192 buffer.anchor_after(cursor.to_point(&display_map)),
5193 ));
5194 edit_ranges.push(edit_start..edit_end);
5195 }
5196
5197 self.transact(cx, |this, cx| {
5198 let buffer = this.buffer.update(cx, |buffer, cx| {
5199 let empty_str: Arc<str> = "".into();
5200 buffer.edit(
5201 edit_ranges
5202 .into_iter()
5203 .map(|range| (range, empty_str.clone())),
5204 None,
5205 cx,
5206 );
5207 buffer.snapshot(cx)
5208 });
5209 let new_selections = new_cursors
5210 .into_iter()
5211 .map(|(id, cursor)| {
5212 let cursor = cursor.to_point(&buffer);
5213 Selection {
5214 id,
5215 start: cursor,
5216 end: cursor,
5217 reversed: false,
5218 goal: SelectionGoal::None,
5219 }
5220 })
5221 .collect();
5222
5223 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
5224 s.select(new_selections);
5225 });
5226 });
5227 }
5228
5229 pub fn join_lines(&mut self, _: &JoinLines, cx: &mut ViewContext<Self>) {
5230 if self.read_only(cx) {
5231 return;
5232 }
5233 let mut row_ranges = Vec::<Range<MultiBufferRow>>::new();
5234 for selection in self.selections.all::<Point>(cx) {
5235 let start = MultiBufferRow(selection.start.row);
5236 let end = if selection.start.row == selection.end.row {
5237 MultiBufferRow(selection.start.row + 1)
5238 } else {
5239 MultiBufferRow(selection.end.row)
5240 };
5241
5242 if let Some(last_row_range) = row_ranges.last_mut() {
5243 if start <= last_row_range.end {
5244 last_row_range.end = end;
5245 continue;
5246 }
5247 }
5248 row_ranges.push(start..end);
5249 }
5250
5251 let snapshot = self.buffer.read(cx).snapshot(cx);
5252 let mut cursor_positions = Vec::new();
5253 for row_range in &row_ranges {
5254 let anchor = snapshot.anchor_before(Point::new(
5255 row_range.end.previous_row().0,
5256 snapshot.line_len(row_range.end.previous_row()),
5257 ));
5258 cursor_positions.push(anchor..anchor);
5259 }
5260
5261 self.transact(cx, |this, cx| {
5262 for row_range in row_ranges.into_iter().rev() {
5263 for row in row_range.iter_rows().rev() {
5264 let end_of_line = Point::new(row.0, snapshot.line_len(row));
5265 let next_line_row = row.next_row();
5266 let indent = snapshot.indent_size_for_line(next_line_row);
5267 let start_of_next_line = Point::new(next_line_row.0, indent.len);
5268
5269 let replace = if snapshot.line_len(next_line_row) > indent.len {
5270 " "
5271 } else {
5272 ""
5273 };
5274
5275 this.buffer.update(cx, |buffer, cx| {
5276 buffer.edit([(end_of_line..start_of_next_line, replace)], None, cx)
5277 });
5278 }
5279 }
5280
5281 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
5282 s.select_anchor_ranges(cursor_positions)
5283 });
5284 });
5285 }
5286
5287 pub fn sort_lines_case_sensitive(
5288 &mut self,
5289 _: &SortLinesCaseSensitive,
5290 cx: &mut ViewContext<Self>,
5291 ) {
5292 self.manipulate_lines(cx, |lines| lines.sort())
5293 }
5294
5295 pub fn sort_lines_case_insensitive(
5296 &mut self,
5297 _: &SortLinesCaseInsensitive,
5298 cx: &mut ViewContext<Self>,
5299 ) {
5300 self.manipulate_lines(cx, |lines| lines.sort_by_key(|line| line.to_lowercase()))
5301 }
5302
5303 pub fn unique_lines_case_insensitive(
5304 &mut self,
5305 _: &UniqueLinesCaseInsensitive,
5306 cx: &mut ViewContext<Self>,
5307 ) {
5308 self.manipulate_lines(cx, |lines| {
5309 let mut seen = HashSet::default();
5310 lines.retain(|line| seen.insert(line.to_lowercase()));
5311 })
5312 }
5313
5314 pub fn unique_lines_case_sensitive(
5315 &mut self,
5316 _: &UniqueLinesCaseSensitive,
5317 cx: &mut ViewContext<Self>,
5318 ) {
5319 self.manipulate_lines(cx, |lines| {
5320 let mut seen = HashSet::default();
5321 lines.retain(|line| seen.insert(*line));
5322 })
5323 }
5324
5325 pub fn revert_selected_hunks(&mut self, _: &RevertSelectedHunks, cx: &mut ViewContext<Self>) {
5326 let revert_changes = self.gather_revert_changes(&self.selections.disjoint_anchors(), cx);
5327 if !revert_changes.is_empty() {
5328 self.transact(cx, |editor, cx| {
5329 editor.buffer().update(cx, |multi_buffer, cx| {
5330 for (buffer_id, changes) in revert_changes {
5331 if let Some(buffer) = multi_buffer.buffer(buffer_id) {
5332 buffer.update(cx, |buffer, cx| {
5333 buffer.edit(
5334 changes.into_iter().map(|(range, text)| {
5335 (range, text.to_string().map(Arc::<str>::from))
5336 }),
5337 None,
5338 cx,
5339 );
5340 });
5341 }
5342 }
5343 });
5344 editor.change_selections(None, cx, |selections| selections.refresh());
5345 });
5346 }
5347 }
5348
5349 pub fn open_active_item_in_terminal(&mut self, _: &OpenInTerminal, cx: &mut ViewContext<Self>) {
5350 if let Some(working_directory) = self.active_excerpt(cx).and_then(|(_, buffer, _)| {
5351 let project_path = buffer.read(cx).project_path(cx)?;
5352 let project = self.project.as_ref()?.read(cx);
5353 let entry = project.entry_for_path(&project_path, cx)?;
5354 let abs_path = project.absolute_path(&project_path, cx)?;
5355 let parent = if entry.is_symlink {
5356 abs_path.canonicalize().ok()?
5357 } else {
5358 abs_path
5359 }
5360 .parent()?
5361 .to_path_buf();
5362 Some(parent)
5363 }) {
5364 cx.dispatch_action(OpenTerminal { working_directory }.boxed_clone());
5365 }
5366 }
5367
5368 fn gather_revert_changes(
5369 &mut self,
5370 selections: &[Selection<Anchor>],
5371 cx: &mut ViewContext<'_, Editor>,
5372 ) -> HashMap<BufferId, Vec<(Range<text::Anchor>, Rope)>> {
5373 let mut revert_changes = HashMap::default();
5374 self.buffer.update(cx, |multi_buffer, cx| {
5375 let multi_buffer_snapshot = multi_buffer.snapshot(cx);
5376 for hunk in hunks_for_selections(&multi_buffer_snapshot, selections) {
5377 Self::prepare_revert_change(&mut revert_changes, &multi_buffer, &hunk, cx);
5378 }
5379 });
5380 revert_changes
5381 }
5382
5383 fn prepare_revert_change(
5384 revert_changes: &mut HashMap<BufferId, Vec<(Range<text::Anchor>, Rope)>>,
5385 multi_buffer: &MultiBuffer,
5386 hunk: &DiffHunk<MultiBufferRow>,
5387 cx: &mut AppContext,
5388 ) -> Option<()> {
5389 let buffer = multi_buffer.buffer(hunk.buffer_id)?;
5390 let buffer = buffer.read(cx);
5391 let original_text = buffer.diff_base()?.slice(hunk.diff_base_byte_range.clone());
5392 let buffer_snapshot = buffer.snapshot();
5393 let buffer_revert_changes = revert_changes.entry(buffer.remote_id()).or_default();
5394 if let Err(i) = buffer_revert_changes.binary_search_by(|probe| {
5395 probe
5396 .0
5397 .start
5398 .cmp(&hunk.buffer_range.start, &buffer_snapshot)
5399 .then(probe.0.end.cmp(&hunk.buffer_range.end, &buffer_snapshot))
5400 }) {
5401 buffer_revert_changes.insert(i, (hunk.buffer_range.clone(), original_text));
5402 Some(())
5403 } else {
5404 None
5405 }
5406 }
5407
5408 pub fn reverse_lines(&mut self, _: &ReverseLines, cx: &mut ViewContext<Self>) {
5409 self.manipulate_lines(cx, |lines| lines.reverse())
5410 }
5411
5412 pub fn shuffle_lines(&mut self, _: &ShuffleLines, cx: &mut ViewContext<Self>) {
5413 self.manipulate_lines(cx, |lines| lines.shuffle(&mut thread_rng()))
5414 }
5415
5416 fn manipulate_lines<Fn>(&mut self, cx: &mut ViewContext<Self>, mut callback: Fn)
5417 where
5418 Fn: FnMut(&mut Vec<&str>),
5419 {
5420 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
5421 let buffer = self.buffer.read(cx).snapshot(cx);
5422
5423 let mut edits = Vec::new();
5424
5425 let selections = self.selections.all::<Point>(cx);
5426 let mut selections = selections.iter().peekable();
5427 let mut contiguous_row_selections = Vec::new();
5428 let mut new_selections = Vec::new();
5429 let mut added_lines = 0;
5430 let mut removed_lines = 0;
5431
5432 while let Some(selection) = selections.next() {
5433 let (start_row, end_row) = consume_contiguous_rows(
5434 &mut contiguous_row_selections,
5435 selection,
5436 &display_map,
5437 &mut selections,
5438 );
5439
5440 let start_point = Point::new(start_row.0, 0);
5441 let end_point = Point::new(
5442 end_row.previous_row().0,
5443 buffer.line_len(end_row.previous_row()),
5444 );
5445 let text = buffer
5446 .text_for_range(start_point..end_point)
5447 .collect::<String>();
5448
5449 let mut lines = text.split('\n').collect_vec();
5450
5451 let lines_before = lines.len();
5452 callback(&mut lines);
5453 let lines_after = lines.len();
5454
5455 edits.push((start_point..end_point, lines.join("\n")));
5456
5457 // Selections must change based on added and removed line count
5458 let start_row =
5459 MultiBufferRow(start_point.row + added_lines as u32 - removed_lines as u32);
5460 let end_row = MultiBufferRow(start_row.0 + lines_after.saturating_sub(1) as u32);
5461 new_selections.push(Selection {
5462 id: selection.id,
5463 start: start_row,
5464 end: end_row,
5465 goal: SelectionGoal::None,
5466 reversed: selection.reversed,
5467 });
5468
5469 if lines_after > lines_before {
5470 added_lines += lines_after - lines_before;
5471 } else if lines_before > lines_after {
5472 removed_lines += lines_before - lines_after;
5473 }
5474 }
5475
5476 self.transact(cx, |this, cx| {
5477 let buffer = this.buffer.update(cx, |buffer, cx| {
5478 buffer.edit(edits, None, cx);
5479 buffer.snapshot(cx)
5480 });
5481
5482 // Recalculate offsets on newly edited buffer
5483 let new_selections = new_selections
5484 .iter()
5485 .map(|s| {
5486 let start_point = Point::new(s.start.0, 0);
5487 let end_point = Point::new(s.end.0, buffer.line_len(s.end));
5488 Selection {
5489 id: s.id,
5490 start: buffer.point_to_offset(start_point),
5491 end: buffer.point_to_offset(end_point),
5492 goal: s.goal,
5493 reversed: s.reversed,
5494 }
5495 })
5496 .collect();
5497
5498 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
5499 s.select(new_selections);
5500 });
5501
5502 this.request_autoscroll(Autoscroll::fit(), cx);
5503 });
5504 }
5505
5506 pub fn convert_to_upper_case(&mut self, _: &ConvertToUpperCase, cx: &mut ViewContext<Self>) {
5507 self.manipulate_text(cx, |text| text.to_uppercase())
5508 }
5509
5510 pub fn convert_to_lower_case(&mut self, _: &ConvertToLowerCase, cx: &mut ViewContext<Self>) {
5511 self.manipulate_text(cx, |text| text.to_lowercase())
5512 }
5513
5514 pub fn convert_to_title_case(&mut self, _: &ConvertToTitleCase, cx: &mut ViewContext<Self>) {
5515 self.manipulate_text(cx, |text| {
5516 // Hack to get around the fact that to_case crate doesn't support '\n' as a word boundary
5517 // https://github.com/rutrum/convert-case/issues/16
5518 text.split('\n')
5519 .map(|line| line.to_case(Case::Title))
5520 .join("\n")
5521 })
5522 }
5523
5524 pub fn convert_to_snake_case(&mut self, _: &ConvertToSnakeCase, cx: &mut ViewContext<Self>) {
5525 self.manipulate_text(cx, |text| text.to_case(Case::Snake))
5526 }
5527
5528 pub fn convert_to_kebab_case(&mut self, _: &ConvertToKebabCase, cx: &mut ViewContext<Self>) {
5529 self.manipulate_text(cx, |text| text.to_case(Case::Kebab))
5530 }
5531
5532 pub fn convert_to_upper_camel_case(
5533 &mut self,
5534 _: &ConvertToUpperCamelCase,
5535 cx: &mut ViewContext<Self>,
5536 ) {
5537 self.manipulate_text(cx, |text| {
5538 // Hack to get around the fact that to_case crate doesn't support '\n' as a word boundary
5539 // https://github.com/rutrum/convert-case/issues/16
5540 text.split('\n')
5541 .map(|line| line.to_case(Case::UpperCamel))
5542 .join("\n")
5543 })
5544 }
5545
5546 pub fn convert_to_lower_camel_case(
5547 &mut self,
5548 _: &ConvertToLowerCamelCase,
5549 cx: &mut ViewContext<Self>,
5550 ) {
5551 self.manipulate_text(cx, |text| text.to_case(Case::Camel))
5552 }
5553
5554 pub fn convert_to_opposite_case(
5555 &mut self,
5556 _: &ConvertToOppositeCase,
5557 cx: &mut ViewContext<Self>,
5558 ) {
5559 self.manipulate_text(cx, |text| {
5560 text.chars()
5561 .fold(String::with_capacity(text.len()), |mut t, c| {
5562 if c.is_uppercase() {
5563 t.extend(c.to_lowercase());
5564 } else {
5565 t.extend(c.to_uppercase());
5566 }
5567 t
5568 })
5569 })
5570 }
5571
5572 fn manipulate_text<Fn>(&mut self, cx: &mut ViewContext<Self>, mut callback: Fn)
5573 where
5574 Fn: FnMut(&str) -> String,
5575 {
5576 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
5577 let buffer = self.buffer.read(cx).snapshot(cx);
5578
5579 let mut new_selections = Vec::new();
5580 let mut edits = Vec::new();
5581 let mut selection_adjustment = 0i32;
5582
5583 for selection in self.selections.all::<usize>(cx) {
5584 let selection_is_empty = selection.is_empty();
5585
5586 let (start, end) = if selection_is_empty {
5587 let word_range = movement::surrounding_word(
5588 &display_map,
5589 selection.start.to_display_point(&display_map),
5590 );
5591 let start = word_range.start.to_offset(&display_map, Bias::Left);
5592 let end = word_range.end.to_offset(&display_map, Bias::Left);
5593 (start, end)
5594 } else {
5595 (selection.start, selection.end)
5596 };
5597
5598 let text = buffer.text_for_range(start..end).collect::<String>();
5599 let old_length = text.len() as i32;
5600 let text = callback(&text);
5601
5602 new_selections.push(Selection {
5603 start: (start as i32 - selection_adjustment) as usize,
5604 end: ((start + text.len()) as i32 - selection_adjustment) as usize,
5605 goal: SelectionGoal::None,
5606 ..selection
5607 });
5608
5609 selection_adjustment += old_length - text.len() as i32;
5610
5611 edits.push((start..end, text));
5612 }
5613
5614 self.transact(cx, |this, cx| {
5615 this.buffer.update(cx, |buffer, cx| {
5616 buffer.edit(edits, None, cx);
5617 });
5618
5619 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
5620 s.select(new_selections);
5621 });
5622
5623 this.request_autoscroll(Autoscroll::fit(), cx);
5624 });
5625 }
5626
5627 pub fn duplicate_line(&mut self, upwards: bool, cx: &mut ViewContext<Self>) {
5628 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
5629 let buffer = &display_map.buffer_snapshot;
5630 let selections = self.selections.all::<Point>(cx);
5631
5632 let mut edits = Vec::new();
5633 let mut selections_iter = selections.iter().peekable();
5634 while let Some(selection) = selections_iter.next() {
5635 // Avoid duplicating the same lines twice.
5636 let mut rows = selection.spanned_rows(false, &display_map);
5637
5638 while let Some(next_selection) = selections_iter.peek() {
5639 let next_rows = next_selection.spanned_rows(false, &display_map);
5640 if next_rows.start < rows.end {
5641 rows.end = next_rows.end;
5642 selections_iter.next().unwrap();
5643 } else {
5644 break;
5645 }
5646 }
5647
5648 // Copy the text from the selected row region and splice it either at the start
5649 // or end of the region.
5650 let start = Point::new(rows.start.0, 0);
5651 let end = Point::new(
5652 rows.end.previous_row().0,
5653 buffer.line_len(rows.end.previous_row()),
5654 );
5655 let text = buffer
5656 .text_for_range(start..end)
5657 .chain(Some("\n"))
5658 .collect::<String>();
5659 let insert_location = if upwards {
5660 Point::new(rows.end.0, 0)
5661 } else {
5662 start
5663 };
5664 edits.push((insert_location..insert_location, text));
5665 }
5666
5667 self.transact(cx, |this, cx| {
5668 this.buffer.update(cx, |buffer, cx| {
5669 buffer.edit(edits, None, cx);
5670 });
5671
5672 this.request_autoscroll(Autoscroll::fit(), cx);
5673 });
5674 }
5675
5676 pub fn duplicate_line_up(&mut self, _: &DuplicateLineUp, cx: &mut ViewContext<Self>) {
5677 self.duplicate_line(true, cx);
5678 }
5679
5680 pub fn duplicate_line_down(&mut self, _: &DuplicateLineDown, cx: &mut ViewContext<Self>) {
5681 self.duplicate_line(false, cx);
5682 }
5683
5684 pub fn move_line_up(&mut self, _: &MoveLineUp, cx: &mut ViewContext<Self>) {
5685 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
5686 let buffer = self.buffer.read(cx).snapshot(cx);
5687
5688 let mut edits = Vec::new();
5689 let mut unfold_ranges = Vec::new();
5690 let mut refold_ranges = Vec::new();
5691
5692 let selections = self.selections.all::<Point>(cx);
5693 let mut selections = selections.iter().peekable();
5694 let mut contiguous_row_selections = Vec::new();
5695 let mut new_selections = Vec::new();
5696
5697 while let Some(selection) = selections.next() {
5698 // Find all the selections that span a contiguous row range
5699 let (start_row, end_row) = consume_contiguous_rows(
5700 &mut contiguous_row_selections,
5701 selection,
5702 &display_map,
5703 &mut selections,
5704 );
5705
5706 // Move the text spanned by the row range to be before the line preceding the row range
5707 if start_row.0 > 0 {
5708 let range_to_move = Point::new(
5709 start_row.previous_row().0,
5710 buffer.line_len(start_row.previous_row()),
5711 )
5712 ..Point::new(
5713 end_row.previous_row().0,
5714 buffer.line_len(end_row.previous_row()),
5715 );
5716 let insertion_point = display_map
5717 .prev_line_boundary(Point::new(start_row.previous_row().0, 0))
5718 .0;
5719
5720 // Don't move lines across excerpts
5721 if buffer
5722 .excerpt_boundaries_in_range((
5723 Bound::Excluded(insertion_point),
5724 Bound::Included(range_to_move.end),
5725 ))
5726 .next()
5727 .is_none()
5728 {
5729 let text = buffer
5730 .text_for_range(range_to_move.clone())
5731 .flat_map(|s| s.chars())
5732 .skip(1)
5733 .chain(['\n'])
5734 .collect::<String>();
5735
5736 edits.push((
5737 buffer.anchor_after(range_to_move.start)
5738 ..buffer.anchor_before(range_to_move.end),
5739 String::new(),
5740 ));
5741 let insertion_anchor = buffer.anchor_after(insertion_point);
5742 edits.push((insertion_anchor..insertion_anchor, text));
5743
5744 let row_delta = range_to_move.start.row - insertion_point.row + 1;
5745
5746 // Move selections up
5747 new_selections.extend(contiguous_row_selections.drain(..).map(
5748 |mut selection| {
5749 selection.start.row -= row_delta;
5750 selection.end.row -= row_delta;
5751 selection
5752 },
5753 ));
5754
5755 // Move folds up
5756 unfold_ranges.push(range_to_move.clone());
5757 for fold in display_map.folds_in_range(
5758 buffer.anchor_before(range_to_move.start)
5759 ..buffer.anchor_after(range_to_move.end),
5760 ) {
5761 let mut start = fold.range.start.to_point(&buffer);
5762 let mut end = fold.range.end.to_point(&buffer);
5763 start.row -= row_delta;
5764 end.row -= row_delta;
5765 refold_ranges.push(start..end);
5766 }
5767 }
5768 }
5769
5770 // If we didn't move line(s), preserve the existing selections
5771 new_selections.append(&mut contiguous_row_selections);
5772 }
5773
5774 self.transact(cx, |this, cx| {
5775 this.unfold_ranges(unfold_ranges, true, true, cx);
5776 this.buffer.update(cx, |buffer, cx| {
5777 for (range, text) in edits {
5778 buffer.edit([(range, text)], None, cx);
5779 }
5780 });
5781 this.fold_ranges(refold_ranges, true, cx);
5782 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
5783 s.select(new_selections);
5784 })
5785 });
5786 }
5787
5788 pub fn move_line_down(&mut self, _: &MoveLineDown, cx: &mut ViewContext<Self>) {
5789 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
5790 let buffer = self.buffer.read(cx).snapshot(cx);
5791
5792 let mut edits = Vec::new();
5793 let mut unfold_ranges = Vec::new();
5794 let mut refold_ranges = Vec::new();
5795
5796 let selections = self.selections.all::<Point>(cx);
5797 let mut selections = selections.iter().peekable();
5798 let mut contiguous_row_selections = Vec::new();
5799 let mut new_selections = Vec::new();
5800
5801 while let Some(selection) = selections.next() {
5802 // Find all the selections that span a contiguous row range
5803 let (start_row, end_row) = consume_contiguous_rows(
5804 &mut contiguous_row_selections,
5805 selection,
5806 &display_map,
5807 &mut selections,
5808 );
5809
5810 // Move the text spanned by the row range to be after the last line of the row range
5811 if end_row.0 <= buffer.max_point().row {
5812 let range_to_move =
5813 MultiBufferPoint::new(start_row.0, 0)..MultiBufferPoint::new(end_row.0, 0);
5814 let insertion_point = display_map
5815 .next_line_boundary(MultiBufferPoint::new(end_row.0, 0))
5816 .0;
5817
5818 // Don't move lines across excerpt boundaries
5819 if buffer
5820 .excerpt_boundaries_in_range((
5821 Bound::Excluded(range_to_move.start),
5822 Bound::Included(insertion_point),
5823 ))
5824 .next()
5825 .is_none()
5826 {
5827 let mut text = String::from("\n");
5828 text.extend(buffer.text_for_range(range_to_move.clone()));
5829 text.pop(); // Drop trailing newline
5830 edits.push((
5831 buffer.anchor_after(range_to_move.start)
5832 ..buffer.anchor_before(range_to_move.end),
5833 String::new(),
5834 ));
5835 let insertion_anchor = buffer.anchor_after(insertion_point);
5836 edits.push((insertion_anchor..insertion_anchor, text));
5837
5838 let row_delta = insertion_point.row - range_to_move.end.row + 1;
5839
5840 // Move selections down
5841 new_selections.extend(contiguous_row_selections.drain(..).map(
5842 |mut selection| {
5843 selection.start.row += row_delta;
5844 selection.end.row += row_delta;
5845 selection
5846 },
5847 ));
5848
5849 // Move folds down
5850 unfold_ranges.push(range_to_move.clone());
5851 for fold in display_map.folds_in_range(
5852 buffer.anchor_before(range_to_move.start)
5853 ..buffer.anchor_after(range_to_move.end),
5854 ) {
5855 let mut start = fold.range.start.to_point(&buffer);
5856 let mut end = fold.range.end.to_point(&buffer);
5857 start.row += row_delta;
5858 end.row += row_delta;
5859 refold_ranges.push(start..end);
5860 }
5861 }
5862 }
5863
5864 // If we didn't move line(s), preserve the existing selections
5865 new_selections.append(&mut contiguous_row_selections);
5866 }
5867
5868 self.transact(cx, |this, cx| {
5869 this.unfold_ranges(unfold_ranges, true, true, cx);
5870 this.buffer.update(cx, |buffer, cx| {
5871 for (range, text) in edits {
5872 buffer.edit([(range, text)], None, cx);
5873 }
5874 });
5875 this.fold_ranges(refold_ranges, true, cx);
5876 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(new_selections));
5877 });
5878 }
5879
5880 pub fn transpose(&mut self, _: &Transpose, cx: &mut ViewContext<Self>) {
5881 let text_layout_details = &self.text_layout_details(cx);
5882 self.transact(cx, |this, cx| {
5883 let edits = this.change_selections(Some(Autoscroll::fit()), cx, |s| {
5884 let mut edits: Vec<(Range<usize>, String)> = Default::default();
5885 let line_mode = s.line_mode;
5886 s.move_with(|display_map, selection| {
5887 if !selection.is_empty() || line_mode {
5888 return;
5889 }
5890
5891 let mut head = selection.head();
5892 let mut transpose_offset = head.to_offset(display_map, Bias::Right);
5893 if head.column() == display_map.line_len(head.row()) {
5894 transpose_offset = display_map
5895 .buffer_snapshot
5896 .clip_offset(transpose_offset.saturating_sub(1), Bias::Left);
5897 }
5898
5899 if transpose_offset == 0 {
5900 return;
5901 }
5902
5903 *head.column_mut() += 1;
5904 head = display_map.clip_point(head, Bias::Right);
5905 let goal = SelectionGoal::HorizontalPosition(
5906 display_map
5907 .x_for_display_point(head, &text_layout_details)
5908 .into(),
5909 );
5910 selection.collapse_to(head, goal);
5911
5912 let transpose_start = display_map
5913 .buffer_snapshot
5914 .clip_offset(transpose_offset.saturating_sub(1), Bias::Left);
5915 if edits.last().map_or(true, |e| e.0.end <= transpose_start) {
5916 let transpose_end = display_map
5917 .buffer_snapshot
5918 .clip_offset(transpose_offset + 1, Bias::Right);
5919 if let Some(ch) =
5920 display_map.buffer_snapshot.chars_at(transpose_start).next()
5921 {
5922 edits.push((transpose_start..transpose_offset, String::new()));
5923 edits.push((transpose_end..transpose_end, ch.to_string()));
5924 }
5925 }
5926 });
5927 edits
5928 });
5929 this.buffer
5930 .update(cx, |buffer, cx| buffer.edit(edits, None, cx));
5931 let selections = this.selections.all::<usize>(cx);
5932 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
5933 s.select(selections);
5934 });
5935 });
5936 }
5937
5938 pub fn cut(&mut self, _: &Cut, cx: &mut ViewContext<Self>) {
5939 let mut text = String::new();
5940 let buffer = self.buffer.read(cx).snapshot(cx);
5941 let mut selections = self.selections.all::<Point>(cx);
5942 let mut clipboard_selections = Vec::with_capacity(selections.len());
5943 {
5944 let max_point = buffer.max_point();
5945 let mut is_first = true;
5946 for selection in &mut selections {
5947 let is_entire_line = selection.is_empty() || self.selections.line_mode;
5948 if is_entire_line {
5949 selection.start = Point::new(selection.start.row, 0);
5950 selection.end = cmp::min(max_point, Point::new(selection.end.row + 1, 0));
5951 selection.goal = SelectionGoal::None;
5952 }
5953 if is_first {
5954 is_first = false;
5955 } else {
5956 text += "\n";
5957 }
5958 let mut len = 0;
5959 for chunk in buffer.text_for_range(selection.start..selection.end) {
5960 text.push_str(chunk);
5961 len += chunk.len();
5962 }
5963 clipboard_selections.push(ClipboardSelection {
5964 len,
5965 is_entire_line,
5966 first_line_indent: buffer
5967 .indent_size_for_line(MultiBufferRow(selection.start.row))
5968 .len,
5969 });
5970 }
5971 }
5972
5973 self.transact(cx, |this, cx| {
5974 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
5975 s.select(selections);
5976 });
5977 this.insert("", cx);
5978 cx.write_to_clipboard(ClipboardItem::new(text).with_metadata(clipboard_selections));
5979 });
5980 }
5981
5982 pub fn copy(&mut self, _: &Copy, cx: &mut ViewContext<Self>) {
5983 let selections = self.selections.all::<Point>(cx);
5984 let buffer = self.buffer.read(cx).read(cx);
5985 let mut text = String::new();
5986
5987 let mut clipboard_selections = Vec::with_capacity(selections.len());
5988 {
5989 let max_point = buffer.max_point();
5990 let mut is_first = true;
5991 for selection in selections.iter() {
5992 let mut start = selection.start;
5993 let mut end = selection.end;
5994 let is_entire_line = selection.is_empty() || self.selections.line_mode;
5995 if is_entire_line {
5996 start = Point::new(start.row, 0);
5997 end = cmp::min(max_point, Point::new(end.row + 1, 0));
5998 }
5999 if is_first {
6000 is_first = false;
6001 } else {
6002 text += "\n";
6003 }
6004 let mut len = 0;
6005 for chunk in buffer.text_for_range(start..end) {
6006 text.push_str(chunk);
6007 len += chunk.len();
6008 }
6009 clipboard_selections.push(ClipboardSelection {
6010 len,
6011 is_entire_line,
6012 first_line_indent: buffer.indent_size_for_line(MultiBufferRow(start.row)).len,
6013 });
6014 }
6015 }
6016
6017 cx.write_to_clipboard(ClipboardItem::new(text).with_metadata(clipboard_selections));
6018 }
6019
6020 pub fn paste(&mut self, _: &Paste, cx: &mut ViewContext<Self>) {
6021 if self.read_only(cx) {
6022 return;
6023 }
6024
6025 self.transact(cx, |this, cx| {
6026 if let Some(item) = cx.read_from_clipboard() {
6027 let clipboard_text = Cow::Borrowed(item.text());
6028 if let Some(mut clipboard_selections) = item.metadata::<Vec<ClipboardSelection>>() {
6029 let old_selections = this.selections.all::<usize>(cx);
6030 let all_selections_were_entire_line =
6031 clipboard_selections.iter().all(|s| s.is_entire_line);
6032 let first_selection_indent_column =
6033 clipboard_selections.first().map(|s| s.first_line_indent);
6034 if clipboard_selections.len() != old_selections.len() {
6035 clipboard_selections.drain(..);
6036 }
6037
6038 this.buffer.update(cx, |buffer, cx| {
6039 let snapshot = buffer.read(cx);
6040 let mut start_offset = 0;
6041 let mut edits = Vec::new();
6042 let mut original_indent_columns = Vec::new();
6043 let line_mode = this.selections.line_mode;
6044 for (ix, selection) in old_selections.iter().enumerate() {
6045 let to_insert;
6046 let entire_line;
6047 let original_indent_column;
6048 if let Some(clipboard_selection) = clipboard_selections.get(ix) {
6049 let end_offset = start_offset + clipboard_selection.len;
6050 to_insert = &clipboard_text[start_offset..end_offset];
6051 entire_line = clipboard_selection.is_entire_line;
6052 start_offset = end_offset + 1;
6053 original_indent_column =
6054 Some(clipboard_selection.first_line_indent);
6055 } else {
6056 to_insert = clipboard_text.as_str();
6057 entire_line = all_selections_were_entire_line;
6058 original_indent_column = first_selection_indent_column
6059 }
6060
6061 // If the corresponding selection was empty when this slice of the
6062 // clipboard text was written, then the entire line containing the
6063 // selection was copied. If this selection is also currently empty,
6064 // then paste the line before the current line of the buffer.
6065 let range = if selection.is_empty() && !line_mode && entire_line {
6066 let column = selection.start.to_point(&snapshot).column as usize;
6067 let line_start = selection.start - column;
6068 line_start..line_start
6069 } else {
6070 selection.range()
6071 };
6072
6073 edits.push((range, to_insert));
6074 original_indent_columns.extend(original_indent_column);
6075 }
6076 drop(snapshot);
6077
6078 buffer.edit(
6079 edits,
6080 Some(AutoindentMode::Block {
6081 original_indent_columns,
6082 }),
6083 cx,
6084 );
6085 });
6086
6087 let selections = this.selections.all::<usize>(cx);
6088 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
6089 } else {
6090 this.insert(&clipboard_text, cx);
6091 }
6092 }
6093 });
6094 }
6095
6096 pub fn undo(&mut self, _: &Undo, cx: &mut ViewContext<Self>) {
6097 if self.read_only(cx) {
6098 return;
6099 }
6100
6101 if let Some(tx_id) = self.buffer.update(cx, |buffer, cx| buffer.undo(cx)) {
6102 if let Some((selections, _)) = self.selection_history.transaction(tx_id).cloned() {
6103 self.change_selections(None, cx, |s| {
6104 s.select_anchors(selections.to_vec());
6105 });
6106 }
6107 self.request_autoscroll(Autoscroll::fit(), cx);
6108 self.unmark_text(cx);
6109 self.refresh_inline_completion(true, cx);
6110 cx.emit(EditorEvent::Edited);
6111 cx.emit(EditorEvent::TransactionUndone {
6112 transaction_id: tx_id,
6113 });
6114 }
6115 }
6116
6117 pub fn redo(&mut self, _: &Redo, cx: &mut ViewContext<Self>) {
6118 if self.read_only(cx) {
6119 return;
6120 }
6121
6122 if let Some(tx_id) = self.buffer.update(cx, |buffer, cx| buffer.redo(cx)) {
6123 if let Some((_, Some(selections))) = self.selection_history.transaction(tx_id).cloned()
6124 {
6125 self.change_selections(None, cx, |s| {
6126 s.select_anchors(selections.to_vec());
6127 });
6128 }
6129 self.request_autoscroll(Autoscroll::fit(), cx);
6130 self.unmark_text(cx);
6131 self.refresh_inline_completion(true, cx);
6132 cx.emit(EditorEvent::Edited);
6133 }
6134 }
6135
6136 pub fn finalize_last_transaction(&mut self, cx: &mut ViewContext<Self>) {
6137 self.buffer
6138 .update(cx, |buffer, cx| buffer.finalize_last_transaction(cx));
6139 }
6140
6141 pub fn group_until_transaction(&mut self, tx_id: TransactionId, cx: &mut ViewContext<Self>) {
6142 self.buffer
6143 .update(cx, |buffer, cx| buffer.group_until_transaction(tx_id, cx));
6144 }
6145
6146 pub fn move_left(&mut self, _: &MoveLeft, cx: &mut ViewContext<Self>) {
6147 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6148 let line_mode = s.line_mode;
6149 s.move_with(|map, selection| {
6150 let cursor = if selection.is_empty() && !line_mode {
6151 movement::left(map, selection.start)
6152 } else {
6153 selection.start
6154 };
6155 selection.collapse_to(cursor, SelectionGoal::None);
6156 });
6157 })
6158 }
6159
6160 pub fn select_left(&mut self, _: &SelectLeft, cx: &mut ViewContext<Self>) {
6161 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6162 s.move_heads_with(|map, head, _| (movement::left(map, head), SelectionGoal::None));
6163 })
6164 }
6165
6166 pub fn move_right(&mut self, _: &MoveRight, cx: &mut ViewContext<Self>) {
6167 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6168 let line_mode = s.line_mode;
6169 s.move_with(|map, selection| {
6170 let cursor = if selection.is_empty() && !line_mode {
6171 movement::right(map, selection.end)
6172 } else {
6173 selection.end
6174 };
6175 selection.collapse_to(cursor, SelectionGoal::None)
6176 });
6177 })
6178 }
6179
6180 pub fn select_right(&mut self, _: &SelectRight, cx: &mut ViewContext<Self>) {
6181 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6182 s.move_heads_with(|map, head, _| (movement::right(map, head), SelectionGoal::None));
6183 })
6184 }
6185
6186 pub fn move_up(&mut self, _: &MoveUp, cx: &mut ViewContext<Self>) {
6187 if self.take_rename(true, cx).is_some() {
6188 return;
6189 }
6190
6191 if matches!(self.mode, EditorMode::SingleLine) {
6192 cx.propagate();
6193 return;
6194 }
6195
6196 let text_layout_details = &self.text_layout_details(cx);
6197
6198 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6199 let line_mode = s.line_mode;
6200 s.move_with(|map, selection| {
6201 if !selection.is_empty() && !line_mode {
6202 selection.goal = SelectionGoal::None;
6203 }
6204 let (cursor, goal) = movement::up(
6205 map,
6206 selection.start,
6207 selection.goal,
6208 false,
6209 &text_layout_details,
6210 );
6211 selection.collapse_to(cursor, goal);
6212 });
6213 })
6214 }
6215
6216 pub fn move_up_by_lines(&mut self, action: &MoveUpByLines, cx: &mut ViewContext<Self>) {
6217 if self.take_rename(true, cx).is_some() {
6218 return;
6219 }
6220
6221 if matches!(self.mode, EditorMode::SingleLine) {
6222 cx.propagate();
6223 return;
6224 }
6225
6226 let text_layout_details = &self.text_layout_details(cx);
6227
6228 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6229 let line_mode = s.line_mode;
6230 s.move_with(|map, selection| {
6231 if !selection.is_empty() && !line_mode {
6232 selection.goal = SelectionGoal::None;
6233 }
6234 let (cursor, goal) = movement::up_by_rows(
6235 map,
6236 selection.start,
6237 action.lines,
6238 selection.goal,
6239 false,
6240 &text_layout_details,
6241 );
6242 selection.collapse_to(cursor, goal);
6243 });
6244 })
6245 }
6246
6247 pub fn move_down_by_lines(&mut self, action: &MoveDownByLines, cx: &mut ViewContext<Self>) {
6248 if self.take_rename(true, cx).is_some() {
6249 return;
6250 }
6251
6252 if matches!(self.mode, EditorMode::SingleLine) {
6253 cx.propagate();
6254 return;
6255 }
6256
6257 let text_layout_details = &self.text_layout_details(cx);
6258
6259 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6260 let line_mode = s.line_mode;
6261 s.move_with(|map, selection| {
6262 if !selection.is_empty() && !line_mode {
6263 selection.goal = SelectionGoal::None;
6264 }
6265 let (cursor, goal) = movement::down_by_rows(
6266 map,
6267 selection.start,
6268 action.lines,
6269 selection.goal,
6270 false,
6271 &text_layout_details,
6272 );
6273 selection.collapse_to(cursor, goal);
6274 });
6275 })
6276 }
6277
6278 pub fn select_down_by_lines(&mut self, action: &SelectDownByLines, cx: &mut ViewContext<Self>) {
6279 let text_layout_details = &self.text_layout_details(cx);
6280 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6281 s.move_heads_with(|map, head, goal| {
6282 movement::down_by_rows(map, head, action.lines, goal, false, &text_layout_details)
6283 })
6284 })
6285 }
6286
6287 pub fn select_up_by_lines(&mut self, action: &SelectUpByLines, cx: &mut ViewContext<Self>) {
6288 let text_layout_details = &self.text_layout_details(cx);
6289 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6290 s.move_heads_with(|map, head, goal| {
6291 movement::up_by_rows(map, head, action.lines, goal, false, &text_layout_details)
6292 })
6293 })
6294 }
6295
6296 pub fn move_page_up(&mut self, action: &MovePageUp, cx: &mut ViewContext<Self>) {
6297 if self.take_rename(true, cx).is_some() {
6298 return;
6299 }
6300
6301 if matches!(self.mode, EditorMode::SingleLine) {
6302 cx.propagate();
6303 return;
6304 }
6305
6306 let row_count = if let Some(row_count) = self.visible_line_count() {
6307 row_count as u32 - 1
6308 } else {
6309 return;
6310 };
6311
6312 let autoscroll = if action.center_cursor {
6313 Autoscroll::center()
6314 } else {
6315 Autoscroll::fit()
6316 };
6317
6318 let text_layout_details = &self.text_layout_details(cx);
6319
6320 self.change_selections(Some(autoscroll), cx, |s| {
6321 let line_mode = s.line_mode;
6322 s.move_with(|map, selection| {
6323 if !selection.is_empty() && !line_mode {
6324 selection.goal = SelectionGoal::None;
6325 }
6326 let (cursor, goal) = movement::up_by_rows(
6327 map,
6328 selection.end,
6329 row_count,
6330 selection.goal,
6331 false,
6332 &text_layout_details,
6333 );
6334 selection.collapse_to(cursor, goal);
6335 });
6336 });
6337 }
6338
6339 pub fn select_up(&mut self, _: &SelectUp, cx: &mut ViewContext<Self>) {
6340 let text_layout_details = &self.text_layout_details(cx);
6341 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6342 s.move_heads_with(|map, head, goal| {
6343 movement::up(map, head, goal, false, &text_layout_details)
6344 })
6345 })
6346 }
6347
6348 pub fn move_down(&mut self, _: &MoveDown, cx: &mut ViewContext<Self>) {
6349 self.take_rename(true, cx);
6350
6351 if self.mode == EditorMode::SingleLine {
6352 cx.propagate();
6353 return;
6354 }
6355
6356 let text_layout_details = &self.text_layout_details(cx);
6357 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6358 let line_mode = s.line_mode;
6359 s.move_with(|map, selection| {
6360 if !selection.is_empty() && !line_mode {
6361 selection.goal = SelectionGoal::None;
6362 }
6363 let (cursor, goal) = movement::down(
6364 map,
6365 selection.end,
6366 selection.goal,
6367 false,
6368 &text_layout_details,
6369 );
6370 selection.collapse_to(cursor, goal);
6371 });
6372 });
6373 }
6374
6375 pub fn move_page_down(&mut self, action: &MovePageDown, cx: &mut ViewContext<Self>) {
6376 if self.take_rename(true, cx).is_some() {
6377 return;
6378 }
6379
6380 if self
6381 .context_menu
6382 .write()
6383 .as_mut()
6384 .map(|menu| menu.select_last(self.project.as_ref(), cx))
6385 .unwrap_or(false)
6386 {
6387 return;
6388 }
6389
6390 if matches!(self.mode, EditorMode::SingleLine) {
6391 cx.propagate();
6392 return;
6393 }
6394
6395 let row_count = if let Some(row_count) = self.visible_line_count() {
6396 row_count as u32 - 1
6397 } else {
6398 return;
6399 };
6400
6401 let autoscroll = if action.center_cursor {
6402 Autoscroll::center()
6403 } else {
6404 Autoscroll::fit()
6405 };
6406
6407 let text_layout_details = &self.text_layout_details(cx);
6408 self.change_selections(Some(autoscroll), cx, |s| {
6409 let line_mode = s.line_mode;
6410 s.move_with(|map, selection| {
6411 if !selection.is_empty() && !line_mode {
6412 selection.goal = SelectionGoal::None;
6413 }
6414 let (cursor, goal) = movement::down_by_rows(
6415 map,
6416 selection.end,
6417 row_count,
6418 selection.goal,
6419 false,
6420 &text_layout_details,
6421 );
6422 selection.collapse_to(cursor, goal);
6423 });
6424 });
6425 }
6426
6427 pub fn select_down(&mut self, _: &SelectDown, cx: &mut ViewContext<Self>) {
6428 let text_layout_details = &self.text_layout_details(cx);
6429 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6430 s.move_heads_with(|map, head, goal| {
6431 movement::down(map, head, goal, false, &text_layout_details)
6432 })
6433 });
6434 }
6435
6436 pub fn context_menu_first(&mut self, _: &ContextMenuFirst, cx: &mut ViewContext<Self>) {
6437 if let Some(context_menu) = self.context_menu.write().as_mut() {
6438 context_menu.select_first(self.project.as_ref(), cx);
6439 }
6440 }
6441
6442 pub fn context_menu_prev(&mut self, _: &ContextMenuPrev, cx: &mut ViewContext<Self>) {
6443 if let Some(context_menu) = self.context_menu.write().as_mut() {
6444 context_menu.select_prev(self.project.as_ref(), cx);
6445 }
6446 }
6447
6448 pub fn context_menu_next(&mut self, _: &ContextMenuNext, cx: &mut ViewContext<Self>) {
6449 if let Some(context_menu) = self.context_menu.write().as_mut() {
6450 context_menu.select_next(self.project.as_ref(), cx);
6451 }
6452 }
6453
6454 pub fn context_menu_last(&mut self, _: &ContextMenuLast, cx: &mut ViewContext<Self>) {
6455 if let Some(context_menu) = self.context_menu.write().as_mut() {
6456 context_menu.select_last(self.project.as_ref(), cx);
6457 }
6458 }
6459
6460 pub fn move_to_previous_word_start(
6461 &mut self,
6462 _: &MoveToPreviousWordStart,
6463 cx: &mut ViewContext<Self>,
6464 ) {
6465 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6466 s.move_cursors_with(|map, head, _| {
6467 (
6468 movement::previous_word_start(map, head),
6469 SelectionGoal::None,
6470 )
6471 });
6472 })
6473 }
6474
6475 pub fn move_to_previous_subword_start(
6476 &mut self,
6477 _: &MoveToPreviousSubwordStart,
6478 cx: &mut ViewContext<Self>,
6479 ) {
6480 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6481 s.move_cursors_with(|map, head, _| {
6482 (
6483 movement::previous_subword_start(map, head),
6484 SelectionGoal::None,
6485 )
6486 });
6487 })
6488 }
6489
6490 pub fn select_to_previous_word_start(
6491 &mut self,
6492 _: &SelectToPreviousWordStart,
6493 cx: &mut ViewContext<Self>,
6494 ) {
6495 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6496 s.move_heads_with(|map, head, _| {
6497 (
6498 movement::previous_word_start(map, head),
6499 SelectionGoal::None,
6500 )
6501 });
6502 })
6503 }
6504
6505 pub fn select_to_previous_subword_start(
6506 &mut self,
6507 _: &SelectToPreviousSubwordStart,
6508 cx: &mut ViewContext<Self>,
6509 ) {
6510 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6511 s.move_heads_with(|map, head, _| {
6512 (
6513 movement::previous_subword_start(map, head),
6514 SelectionGoal::None,
6515 )
6516 });
6517 })
6518 }
6519
6520 pub fn delete_to_previous_word_start(
6521 &mut self,
6522 _: &DeleteToPreviousWordStart,
6523 cx: &mut ViewContext<Self>,
6524 ) {
6525 self.transact(cx, |this, cx| {
6526 this.select_autoclose_pair(cx);
6527 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6528 let line_mode = s.line_mode;
6529 s.move_with(|map, selection| {
6530 if selection.is_empty() && !line_mode {
6531 let cursor = movement::previous_word_start(map, selection.head());
6532 selection.set_head(cursor, SelectionGoal::None);
6533 }
6534 });
6535 });
6536 this.insert("", cx);
6537 });
6538 }
6539
6540 pub fn delete_to_previous_subword_start(
6541 &mut self,
6542 _: &DeleteToPreviousSubwordStart,
6543 cx: &mut ViewContext<Self>,
6544 ) {
6545 self.transact(cx, |this, cx| {
6546 this.select_autoclose_pair(cx);
6547 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6548 let line_mode = s.line_mode;
6549 s.move_with(|map, selection| {
6550 if selection.is_empty() && !line_mode {
6551 let cursor = movement::previous_subword_start(map, selection.head());
6552 selection.set_head(cursor, SelectionGoal::None);
6553 }
6554 });
6555 });
6556 this.insert("", cx);
6557 });
6558 }
6559
6560 pub fn move_to_next_word_end(&mut self, _: &MoveToNextWordEnd, cx: &mut ViewContext<Self>) {
6561 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6562 s.move_cursors_with(|map, head, _| {
6563 (movement::next_word_end(map, head), SelectionGoal::None)
6564 });
6565 })
6566 }
6567
6568 pub fn move_to_next_subword_end(
6569 &mut self,
6570 _: &MoveToNextSubwordEnd,
6571 cx: &mut ViewContext<Self>,
6572 ) {
6573 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6574 s.move_cursors_with(|map, head, _| {
6575 (movement::next_subword_end(map, head), SelectionGoal::None)
6576 });
6577 })
6578 }
6579
6580 pub fn select_to_next_word_end(&mut self, _: &SelectToNextWordEnd, cx: &mut ViewContext<Self>) {
6581 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6582 s.move_heads_with(|map, head, _| {
6583 (movement::next_word_end(map, head), SelectionGoal::None)
6584 });
6585 })
6586 }
6587
6588 pub fn select_to_next_subword_end(
6589 &mut self,
6590 _: &SelectToNextSubwordEnd,
6591 cx: &mut ViewContext<Self>,
6592 ) {
6593 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6594 s.move_heads_with(|map, head, _| {
6595 (movement::next_subword_end(map, head), SelectionGoal::None)
6596 });
6597 })
6598 }
6599
6600 pub fn delete_to_next_word_end(&mut self, _: &DeleteToNextWordEnd, cx: &mut ViewContext<Self>) {
6601 self.transact(cx, |this, cx| {
6602 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6603 let line_mode = s.line_mode;
6604 s.move_with(|map, selection| {
6605 if selection.is_empty() && !line_mode {
6606 let cursor = movement::next_word_end(map, selection.head());
6607 selection.set_head(cursor, SelectionGoal::None);
6608 }
6609 });
6610 });
6611 this.insert("", cx);
6612 });
6613 }
6614
6615 pub fn delete_to_next_subword_end(
6616 &mut self,
6617 _: &DeleteToNextSubwordEnd,
6618 cx: &mut ViewContext<Self>,
6619 ) {
6620 self.transact(cx, |this, cx| {
6621 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6622 s.move_with(|map, selection| {
6623 if selection.is_empty() {
6624 let cursor = movement::next_subword_end(map, selection.head());
6625 selection.set_head(cursor, SelectionGoal::None);
6626 }
6627 });
6628 });
6629 this.insert("", cx);
6630 });
6631 }
6632
6633 pub fn move_to_beginning_of_line(
6634 &mut self,
6635 action: &MoveToBeginningOfLine,
6636 cx: &mut ViewContext<Self>,
6637 ) {
6638 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6639 s.move_cursors_with(|map, head, _| {
6640 (
6641 movement::indented_line_beginning(map, head, action.stop_at_soft_wraps),
6642 SelectionGoal::None,
6643 )
6644 });
6645 })
6646 }
6647
6648 pub fn select_to_beginning_of_line(
6649 &mut self,
6650 action: &SelectToBeginningOfLine,
6651 cx: &mut ViewContext<Self>,
6652 ) {
6653 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6654 s.move_heads_with(|map, head, _| {
6655 (
6656 movement::indented_line_beginning(map, head, action.stop_at_soft_wraps),
6657 SelectionGoal::None,
6658 )
6659 });
6660 });
6661 }
6662
6663 pub fn delete_to_beginning_of_line(
6664 &mut self,
6665 _: &DeleteToBeginningOfLine,
6666 cx: &mut ViewContext<Self>,
6667 ) {
6668 self.transact(cx, |this, cx| {
6669 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6670 s.move_with(|_, selection| {
6671 selection.reversed = true;
6672 });
6673 });
6674
6675 this.select_to_beginning_of_line(
6676 &SelectToBeginningOfLine {
6677 stop_at_soft_wraps: false,
6678 },
6679 cx,
6680 );
6681 this.backspace(&Backspace, cx);
6682 });
6683 }
6684
6685 pub fn move_to_end_of_line(&mut self, action: &MoveToEndOfLine, cx: &mut ViewContext<Self>) {
6686 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6687 s.move_cursors_with(|map, head, _| {
6688 (
6689 movement::line_end(map, head, action.stop_at_soft_wraps),
6690 SelectionGoal::None,
6691 )
6692 });
6693 })
6694 }
6695
6696 pub fn select_to_end_of_line(
6697 &mut self,
6698 action: &SelectToEndOfLine,
6699 cx: &mut ViewContext<Self>,
6700 ) {
6701 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6702 s.move_heads_with(|map, head, _| {
6703 (
6704 movement::line_end(map, head, action.stop_at_soft_wraps),
6705 SelectionGoal::None,
6706 )
6707 });
6708 })
6709 }
6710
6711 pub fn delete_to_end_of_line(&mut self, _: &DeleteToEndOfLine, cx: &mut ViewContext<Self>) {
6712 self.transact(cx, |this, cx| {
6713 this.select_to_end_of_line(
6714 &SelectToEndOfLine {
6715 stop_at_soft_wraps: false,
6716 },
6717 cx,
6718 );
6719 this.delete(&Delete, cx);
6720 });
6721 }
6722
6723 pub fn cut_to_end_of_line(&mut self, _: &CutToEndOfLine, cx: &mut ViewContext<Self>) {
6724 self.transact(cx, |this, cx| {
6725 this.select_to_end_of_line(
6726 &SelectToEndOfLine {
6727 stop_at_soft_wraps: false,
6728 },
6729 cx,
6730 );
6731 this.cut(&Cut, cx);
6732 });
6733 }
6734
6735 pub fn move_to_start_of_paragraph(
6736 &mut self,
6737 _: &MoveToStartOfParagraph,
6738 cx: &mut ViewContext<Self>,
6739 ) {
6740 if matches!(self.mode, EditorMode::SingleLine) {
6741 cx.propagate();
6742 return;
6743 }
6744
6745 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6746 s.move_with(|map, selection| {
6747 selection.collapse_to(
6748 movement::start_of_paragraph(map, selection.head(), 1),
6749 SelectionGoal::None,
6750 )
6751 });
6752 })
6753 }
6754
6755 pub fn move_to_end_of_paragraph(
6756 &mut self,
6757 _: &MoveToEndOfParagraph,
6758 cx: &mut ViewContext<Self>,
6759 ) {
6760 if matches!(self.mode, EditorMode::SingleLine) {
6761 cx.propagate();
6762 return;
6763 }
6764
6765 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6766 s.move_with(|map, selection| {
6767 selection.collapse_to(
6768 movement::end_of_paragraph(map, selection.head(), 1),
6769 SelectionGoal::None,
6770 )
6771 });
6772 })
6773 }
6774
6775 pub fn select_to_start_of_paragraph(
6776 &mut self,
6777 _: &SelectToStartOfParagraph,
6778 cx: &mut ViewContext<Self>,
6779 ) {
6780 if matches!(self.mode, EditorMode::SingleLine) {
6781 cx.propagate();
6782 return;
6783 }
6784
6785 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6786 s.move_heads_with(|map, head, _| {
6787 (
6788 movement::start_of_paragraph(map, head, 1),
6789 SelectionGoal::None,
6790 )
6791 });
6792 })
6793 }
6794
6795 pub fn select_to_end_of_paragraph(
6796 &mut self,
6797 _: &SelectToEndOfParagraph,
6798 cx: &mut ViewContext<Self>,
6799 ) {
6800 if matches!(self.mode, EditorMode::SingleLine) {
6801 cx.propagate();
6802 return;
6803 }
6804
6805 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6806 s.move_heads_with(|map, head, _| {
6807 (
6808 movement::end_of_paragraph(map, head, 1),
6809 SelectionGoal::None,
6810 )
6811 });
6812 })
6813 }
6814
6815 pub fn move_to_beginning(&mut self, _: &MoveToBeginning, cx: &mut ViewContext<Self>) {
6816 if matches!(self.mode, EditorMode::SingleLine) {
6817 cx.propagate();
6818 return;
6819 }
6820
6821 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6822 s.select_ranges(vec![0..0]);
6823 });
6824 }
6825
6826 pub fn select_to_beginning(&mut self, _: &SelectToBeginning, cx: &mut ViewContext<Self>) {
6827 let mut selection = self.selections.last::<Point>(cx);
6828 selection.set_head(Point::zero(), SelectionGoal::None);
6829
6830 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6831 s.select(vec![selection]);
6832 });
6833 }
6834
6835 pub fn move_to_end(&mut self, _: &MoveToEnd, cx: &mut ViewContext<Self>) {
6836 if matches!(self.mode, EditorMode::SingleLine) {
6837 cx.propagate();
6838 return;
6839 }
6840
6841 let cursor = self.buffer.read(cx).read(cx).len();
6842 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6843 s.select_ranges(vec![cursor..cursor])
6844 });
6845 }
6846
6847 pub fn set_nav_history(&mut self, nav_history: Option<ItemNavHistory>) {
6848 self.nav_history = nav_history;
6849 }
6850
6851 pub fn nav_history(&self) -> Option<&ItemNavHistory> {
6852 self.nav_history.as_ref()
6853 }
6854
6855 fn push_to_nav_history(
6856 &mut self,
6857 cursor_anchor: Anchor,
6858 new_position: Option<Point>,
6859 cx: &mut ViewContext<Self>,
6860 ) {
6861 if let Some(nav_history) = self.nav_history.as_mut() {
6862 let buffer = self.buffer.read(cx).read(cx);
6863 let cursor_position = cursor_anchor.to_point(&buffer);
6864 let scroll_state = self.scroll_manager.anchor();
6865 let scroll_top_row = scroll_state.top_row(&buffer);
6866 drop(buffer);
6867
6868 if let Some(new_position) = new_position {
6869 let row_delta = (new_position.row as i64 - cursor_position.row as i64).abs();
6870 if row_delta < MIN_NAVIGATION_HISTORY_ROW_DELTA {
6871 return;
6872 }
6873 }
6874
6875 nav_history.push(
6876 Some(NavigationData {
6877 cursor_anchor,
6878 cursor_position,
6879 scroll_anchor: scroll_state,
6880 scroll_top_row,
6881 }),
6882 cx,
6883 );
6884 }
6885 }
6886
6887 pub fn select_to_end(&mut self, _: &SelectToEnd, cx: &mut ViewContext<Self>) {
6888 let buffer = self.buffer.read(cx).snapshot(cx);
6889 let mut selection = self.selections.first::<usize>(cx);
6890 selection.set_head(buffer.len(), SelectionGoal::None);
6891 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6892 s.select(vec![selection]);
6893 });
6894 }
6895
6896 pub fn select_all(&mut self, _: &SelectAll, cx: &mut ViewContext<Self>) {
6897 let end = self.buffer.read(cx).read(cx).len();
6898 self.change_selections(None, cx, |s| {
6899 s.select_ranges(vec![0..end]);
6900 });
6901 }
6902
6903 pub fn select_line(&mut self, _: &SelectLine, cx: &mut ViewContext<Self>) {
6904 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
6905 let mut selections = self.selections.all::<Point>(cx);
6906 let max_point = display_map.buffer_snapshot.max_point();
6907 for selection in &mut selections {
6908 let rows = selection.spanned_rows(true, &display_map);
6909 selection.start = Point::new(rows.start.0, 0);
6910 selection.end = cmp::min(max_point, Point::new(rows.end.0, 0));
6911 selection.reversed = false;
6912 }
6913 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6914 s.select(selections);
6915 });
6916 }
6917
6918 pub fn split_selection_into_lines(
6919 &mut self,
6920 _: &SplitSelectionIntoLines,
6921 cx: &mut ViewContext<Self>,
6922 ) {
6923 let mut to_unfold = Vec::new();
6924 let mut new_selection_ranges = Vec::new();
6925 {
6926 let selections = self.selections.all::<Point>(cx);
6927 let buffer = self.buffer.read(cx).read(cx);
6928 for selection in selections {
6929 for row in selection.start.row..selection.end.row {
6930 let cursor = Point::new(row, buffer.line_len(MultiBufferRow(row)));
6931 new_selection_ranges.push(cursor..cursor);
6932 }
6933 new_selection_ranges.push(selection.end..selection.end);
6934 to_unfold.push(selection.start..selection.end);
6935 }
6936 }
6937 self.unfold_ranges(to_unfold, true, true, cx);
6938 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6939 s.select_ranges(new_selection_ranges);
6940 });
6941 }
6942
6943 pub fn add_selection_above(&mut self, _: &AddSelectionAbove, cx: &mut ViewContext<Self>) {
6944 self.add_selection(true, cx);
6945 }
6946
6947 pub fn add_selection_below(&mut self, _: &AddSelectionBelow, cx: &mut ViewContext<Self>) {
6948 self.add_selection(false, cx);
6949 }
6950
6951 fn add_selection(&mut self, above: bool, cx: &mut ViewContext<Self>) {
6952 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
6953 let mut selections = self.selections.all::<Point>(cx);
6954 let text_layout_details = self.text_layout_details(cx);
6955 let mut state = self.add_selections_state.take().unwrap_or_else(|| {
6956 let oldest_selection = selections.iter().min_by_key(|s| s.id).unwrap().clone();
6957 let range = oldest_selection.display_range(&display_map).sorted();
6958
6959 let start_x = display_map.x_for_display_point(range.start, &text_layout_details);
6960 let end_x = display_map.x_for_display_point(range.end, &text_layout_details);
6961 let positions = start_x.min(end_x)..start_x.max(end_x);
6962
6963 selections.clear();
6964 let mut stack = Vec::new();
6965 for row in range.start.row().0..=range.end.row().0 {
6966 if let Some(selection) = self.selections.build_columnar_selection(
6967 &display_map,
6968 DisplayRow(row),
6969 &positions,
6970 oldest_selection.reversed,
6971 &text_layout_details,
6972 ) {
6973 stack.push(selection.id);
6974 selections.push(selection);
6975 }
6976 }
6977
6978 if above {
6979 stack.reverse();
6980 }
6981
6982 AddSelectionsState { above, stack }
6983 });
6984
6985 let last_added_selection = *state.stack.last().unwrap();
6986 let mut new_selections = Vec::new();
6987 if above == state.above {
6988 let end_row = if above {
6989 DisplayRow(0)
6990 } else {
6991 display_map.max_point().row()
6992 };
6993
6994 'outer: for selection in selections {
6995 if selection.id == last_added_selection {
6996 let range = selection.display_range(&display_map).sorted();
6997 debug_assert_eq!(range.start.row(), range.end.row());
6998 let mut row = range.start.row();
6999 let positions =
7000 if let SelectionGoal::HorizontalRange { start, end } = selection.goal {
7001 px(start)..px(end)
7002 } else {
7003 let start_x =
7004 display_map.x_for_display_point(range.start, &text_layout_details);
7005 let end_x =
7006 display_map.x_for_display_point(range.end, &text_layout_details);
7007 start_x.min(end_x)..start_x.max(end_x)
7008 };
7009
7010 while row != end_row {
7011 if above {
7012 row.0 -= 1;
7013 } else {
7014 row.0 += 1;
7015 }
7016
7017 if let Some(new_selection) = self.selections.build_columnar_selection(
7018 &display_map,
7019 row,
7020 &positions,
7021 selection.reversed,
7022 &text_layout_details,
7023 ) {
7024 state.stack.push(new_selection.id);
7025 if above {
7026 new_selections.push(new_selection);
7027 new_selections.push(selection);
7028 } else {
7029 new_selections.push(selection);
7030 new_selections.push(new_selection);
7031 }
7032
7033 continue 'outer;
7034 }
7035 }
7036 }
7037
7038 new_selections.push(selection);
7039 }
7040 } else {
7041 new_selections = selections;
7042 new_selections.retain(|s| s.id != last_added_selection);
7043 state.stack.pop();
7044 }
7045
7046 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7047 s.select(new_selections);
7048 });
7049 if state.stack.len() > 1 {
7050 self.add_selections_state = Some(state);
7051 }
7052 }
7053
7054 pub fn select_next_match_internal(
7055 &mut self,
7056 display_map: &DisplaySnapshot,
7057 replace_newest: bool,
7058 autoscroll: Option<Autoscroll>,
7059 cx: &mut ViewContext<Self>,
7060 ) -> Result<()> {
7061 fn select_next_match_ranges(
7062 this: &mut Editor,
7063 range: Range<usize>,
7064 replace_newest: bool,
7065 auto_scroll: Option<Autoscroll>,
7066 cx: &mut ViewContext<Editor>,
7067 ) {
7068 this.unfold_ranges([range.clone()], false, true, cx);
7069 this.change_selections(auto_scroll, cx, |s| {
7070 if replace_newest {
7071 s.delete(s.newest_anchor().id);
7072 }
7073 s.insert_range(range.clone());
7074 });
7075 }
7076
7077 let buffer = &display_map.buffer_snapshot;
7078 let mut selections = self.selections.all::<usize>(cx);
7079 if let Some(mut select_next_state) = self.select_next_state.take() {
7080 let query = &select_next_state.query;
7081 if !select_next_state.done {
7082 let first_selection = selections.iter().min_by_key(|s| s.id).unwrap();
7083 let last_selection = selections.iter().max_by_key(|s| s.id).unwrap();
7084 let mut next_selected_range = None;
7085
7086 let bytes_after_last_selection =
7087 buffer.bytes_in_range(last_selection.end..buffer.len());
7088 let bytes_before_first_selection = buffer.bytes_in_range(0..first_selection.start);
7089 let query_matches = query
7090 .stream_find_iter(bytes_after_last_selection)
7091 .map(|result| (last_selection.end, result))
7092 .chain(
7093 query
7094 .stream_find_iter(bytes_before_first_selection)
7095 .map(|result| (0, result)),
7096 );
7097
7098 for (start_offset, query_match) in query_matches {
7099 let query_match = query_match.unwrap(); // can only fail due to I/O
7100 let offset_range =
7101 start_offset + query_match.start()..start_offset + query_match.end();
7102 let display_range = offset_range.start.to_display_point(&display_map)
7103 ..offset_range.end.to_display_point(&display_map);
7104
7105 if !select_next_state.wordwise
7106 || (!movement::is_inside_word(&display_map, display_range.start)
7107 && !movement::is_inside_word(&display_map, display_range.end))
7108 {
7109 // TODO: This is n^2, because we might check all the selections
7110 if !selections
7111 .iter()
7112 .any(|selection| selection.range().overlaps(&offset_range))
7113 {
7114 next_selected_range = Some(offset_range);
7115 break;
7116 }
7117 }
7118 }
7119
7120 if let Some(next_selected_range) = next_selected_range {
7121 select_next_match_ranges(
7122 self,
7123 next_selected_range,
7124 replace_newest,
7125 autoscroll,
7126 cx,
7127 );
7128 } else {
7129 select_next_state.done = true;
7130 }
7131 }
7132
7133 self.select_next_state = Some(select_next_state);
7134 } else {
7135 let mut only_carets = true;
7136 let mut same_text_selected = true;
7137 let mut selected_text = None;
7138
7139 let mut selections_iter = selections.iter().peekable();
7140 while let Some(selection) = selections_iter.next() {
7141 if selection.start != selection.end {
7142 only_carets = false;
7143 }
7144
7145 if same_text_selected {
7146 if selected_text.is_none() {
7147 selected_text =
7148 Some(buffer.text_for_range(selection.range()).collect::<String>());
7149 }
7150
7151 if let Some(next_selection) = selections_iter.peek() {
7152 if next_selection.range().len() == selection.range().len() {
7153 let next_selected_text = buffer
7154 .text_for_range(next_selection.range())
7155 .collect::<String>();
7156 if Some(next_selected_text) != selected_text {
7157 same_text_selected = false;
7158 selected_text = None;
7159 }
7160 } else {
7161 same_text_selected = false;
7162 selected_text = None;
7163 }
7164 }
7165 }
7166 }
7167
7168 if only_carets {
7169 for selection in &mut selections {
7170 let word_range = movement::surrounding_word(
7171 &display_map,
7172 selection.start.to_display_point(&display_map),
7173 );
7174 selection.start = word_range.start.to_offset(&display_map, Bias::Left);
7175 selection.end = word_range.end.to_offset(&display_map, Bias::Left);
7176 selection.goal = SelectionGoal::None;
7177 selection.reversed = false;
7178 select_next_match_ranges(
7179 self,
7180 selection.start..selection.end,
7181 replace_newest,
7182 autoscroll,
7183 cx,
7184 );
7185 }
7186
7187 if selections.len() == 1 {
7188 let selection = selections
7189 .last()
7190 .expect("ensured that there's only one selection");
7191 let query = buffer
7192 .text_for_range(selection.start..selection.end)
7193 .collect::<String>();
7194 let is_empty = query.is_empty();
7195 let select_state = SelectNextState {
7196 query: AhoCorasick::new(&[query])?,
7197 wordwise: true,
7198 done: is_empty,
7199 };
7200 self.select_next_state = Some(select_state);
7201 } else {
7202 self.select_next_state = None;
7203 }
7204 } else if let Some(selected_text) = selected_text {
7205 self.select_next_state = Some(SelectNextState {
7206 query: AhoCorasick::new(&[selected_text])?,
7207 wordwise: false,
7208 done: false,
7209 });
7210 self.select_next_match_internal(display_map, replace_newest, autoscroll, cx)?;
7211 }
7212 }
7213 Ok(())
7214 }
7215
7216 pub fn select_all_matches(
7217 &mut self,
7218 _action: &SelectAllMatches,
7219 cx: &mut ViewContext<Self>,
7220 ) -> Result<()> {
7221 self.push_to_selection_history();
7222 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
7223
7224 self.select_next_match_internal(&display_map, false, None, cx)?;
7225 let Some(select_next_state) = self.select_next_state.as_mut() else {
7226 return Ok(());
7227 };
7228 if select_next_state.done {
7229 return Ok(());
7230 }
7231
7232 let mut new_selections = self.selections.all::<usize>(cx);
7233
7234 let buffer = &display_map.buffer_snapshot;
7235 let query_matches = select_next_state
7236 .query
7237 .stream_find_iter(buffer.bytes_in_range(0..buffer.len()));
7238
7239 for query_match in query_matches {
7240 let query_match = query_match.unwrap(); // can only fail due to I/O
7241 let offset_range = query_match.start()..query_match.end();
7242 let display_range = offset_range.start.to_display_point(&display_map)
7243 ..offset_range.end.to_display_point(&display_map);
7244
7245 if !select_next_state.wordwise
7246 || (!movement::is_inside_word(&display_map, display_range.start)
7247 && !movement::is_inside_word(&display_map, display_range.end))
7248 {
7249 self.selections.change_with(cx, |selections| {
7250 new_selections.push(Selection {
7251 id: selections.new_selection_id(),
7252 start: offset_range.start,
7253 end: offset_range.end,
7254 reversed: false,
7255 goal: SelectionGoal::None,
7256 });
7257 });
7258 }
7259 }
7260
7261 new_selections.sort_by_key(|selection| selection.start);
7262 let mut ix = 0;
7263 while ix + 1 < new_selections.len() {
7264 let current_selection = &new_selections[ix];
7265 let next_selection = &new_selections[ix + 1];
7266 if current_selection.range().overlaps(&next_selection.range()) {
7267 if current_selection.id < next_selection.id {
7268 new_selections.remove(ix + 1);
7269 } else {
7270 new_selections.remove(ix);
7271 }
7272 } else {
7273 ix += 1;
7274 }
7275 }
7276
7277 select_next_state.done = true;
7278 self.unfold_ranges(
7279 new_selections.iter().map(|selection| selection.range()),
7280 false,
7281 false,
7282 cx,
7283 );
7284 self.change_selections(Some(Autoscroll::fit()), cx, |selections| {
7285 selections.select(new_selections)
7286 });
7287
7288 Ok(())
7289 }
7290
7291 pub fn select_next(&mut self, action: &SelectNext, cx: &mut ViewContext<Self>) -> Result<()> {
7292 self.push_to_selection_history();
7293 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
7294 self.select_next_match_internal(
7295 &display_map,
7296 action.replace_newest,
7297 Some(Autoscroll::newest()),
7298 cx,
7299 )?;
7300 Ok(())
7301 }
7302
7303 pub fn select_previous(
7304 &mut self,
7305 action: &SelectPrevious,
7306 cx: &mut ViewContext<Self>,
7307 ) -> Result<()> {
7308 self.push_to_selection_history();
7309 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
7310 let buffer = &display_map.buffer_snapshot;
7311 let mut selections = self.selections.all::<usize>(cx);
7312 if let Some(mut select_prev_state) = self.select_prev_state.take() {
7313 let query = &select_prev_state.query;
7314 if !select_prev_state.done {
7315 let first_selection = selections.iter().min_by_key(|s| s.id).unwrap();
7316 let last_selection = selections.iter().max_by_key(|s| s.id).unwrap();
7317 let mut next_selected_range = None;
7318 // When we're iterating matches backwards, the oldest match will actually be the furthest one in the buffer.
7319 let bytes_before_last_selection =
7320 buffer.reversed_bytes_in_range(0..last_selection.start);
7321 let bytes_after_first_selection =
7322 buffer.reversed_bytes_in_range(first_selection.end..buffer.len());
7323 let query_matches = query
7324 .stream_find_iter(bytes_before_last_selection)
7325 .map(|result| (last_selection.start, result))
7326 .chain(
7327 query
7328 .stream_find_iter(bytes_after_first_selection)
7329 .map(|result| (buffer.len(), result)),
7330 );
7331 for (end_offset, query_match) in query_matches {
7332 let query_match = query_match.unwrap(); // can only fail due to I/O
7333 let offset_range =
7334 end_offset - query_match.end()..end_offset - query_match.start();
7335 let display_range = offset_range.start.to_display_point(&display_map)
7336 ..offset_range.end.to_display_point(&display_map);
7337
7338 if !select_prev_state.wordwise
7339 || (!movement::is_inside_word(&display_map, display_range.start)
7340 && !movement::is_inside_word(&display_map, display_range.end))
7341 {
7342 next_selected_range = Some(offset_range);
7343 break;
7344 }
7345 }
7346
7347 if let Some(next_selected_range) = next_selected_range {
7348 self.unfold_ranges([next_selected_range.clone()], false, true, cx);
7349 self.change_selections(Some(Autoscroll::newest()), cx, |s| {
7350 if action.replace_newest {
7351 s.delete(s.newest_anchor().id);
7352 }
7353 s.insert_range(next_selected_range);
7354 });
7355 } else {
7356 select_prev_state.done = true;
7357 }
7358 }
7359
7360 self.select_prev_state = Some(select_prev_state);
7361 } else {
7362 let mut only_carets = true;
7363 let mut same_text_selected = true;
7364 let mut selected_text = None;
7365
7366 let mut selections_iter = selections.iter().peekable();
7367 while let Some(selection) = selections_iter.next() {
7368 if selection.start != selection.end {
7369 only_carets = false;
7370 }
7371
7372 if same_text_selected {
7373 if selected_text.is_none() {
7374 selected_text =
7375 Some(buffer.text_for_range(selection.range()).collect::<String>());
7376 }
7377
7378 if let Some(next_selection) = selections_iter.peek() {
7379 if next_selection.range().len() == selection.range().len() {
7380 let next_selected_text = buffer
7381 .text_for_range(next_selection.range())
7382 .collect::<String>();
7383 if Some(next_selected_text) != selected_text {
7384 same_text_selected = false;
7385 selected_text = None;
7386 }
7387 } else {
7388 same_text_selected = false;
7389 selected_text = None;
7390 }
7391 }
7392 }
7393 }
7394
7395 if only_carets {
7396 for selection in &mut selections {
7397 let word_range = movement::surrounding_word(
7398 &display_map,
7399 selection.start.to_display_point(&display_map),
7400 );
7401 selection.start = word_range.start.to_offset(&display_map, Bias::Left);
7402 selection.end = word_range.end.to_offset(&display_map, Bias::Left);
7403 selection.goal = SelectionGoal::None;
7404 selection.reversed = false;
7405 }
7406 if selections.len() == 1 {
7407 let selection = selections
7408 .last()
7409 .expect("ensured that there's only one selection");
7410 let query = buffer
7411 .text_for_range(selection.start..selection.end)
7412 .collect::<String>();
7413 let is_empty = query.is_empty();
7414 let select_state = SelectNextState {
7415 query: AhoCorasick::new(&[query.chars().rev().collect::<String>()])?,
7416 wordwise: true,
7417 done: is_empty,
7418 };
7419 self.select_prev_state = Some(select_state);
7420 } else {
7421 self.select_prev_state = None;
7422 }
7423
7424 self.unfold_ranges(
7425 selections.iter().map(|s| s.range()).collect::<Vec<_>>(),
7426 false,
7427 true,
7428 cx,
7429 );
7430 self.change_selections(Some(Autoscroll::newest()), cx, |s| {
7431 s.select(selections);
7432 });
7433 } else if let Some(selected_text) = selected_text {
7434 self.select_prev_state = Some(SelectNextState {
7435 query: AhoCorasick::new(&[selected_text.chars().rev().collect::<String>()])?,
7436 wordwise: false,
7437 done: false,
7438 });
7439 self.select_previous(action, cx)?;
7440 }
7441 }
7442 Ok(())
7443 }
7444
7445 pub fn toggle_comments(&mut self, action: &ToggleComments, cx: &mut ViewContext<Self>) {
7446 let text_layout_details = &self.text_layout_details(cx);
7447 self.transact(cx, |this, cx| {
7448 let mut selections = this.selections.all::<MultiBufferPoint>(cx);
7449 let mut edits = Vec::new();
7450 let mut selection_edit_ranges = Vec::new();
7451 let mut last_toggled_row = None;
7452 let snapshot = this.buffer.read(cx).read(cx);
7453 let empty_str: Arc<str> = "".into();
7454 let mut suffixes_inserted = Vec::new();
7455
7456 fn comment_prefix_range(
7457 snapshot: &MultiBufferSnapshot,
7458 row: MultiBufferRow,
7459 comment_prefix: &str,
7460 comment_prefix_whitespace: &str,
7461 ) -> Range<Point> {
7462 let start = Point::new(row.0, snapshot.indent_size_for_line(row).len);
7463
7464 let mut line_bytes = snapshot
7465 .bytes_in_range(start..snapshot.max_point())
7466 .flatten()
7467 .copied();
7468
7469 // If this line currently begins with the line comment prefix, then record
7470 // the range containing the prefix.
7471 if line_bytes
7472 .by_ref()
7473 .take(comment_prefix.len())
7474 .eq(comment_prefix.bytes())
7475 {
7476 // Include any whitespace that matches the comment prefix.
7477 let matching_whitespace_len = line_bytes
7478 .zip(comment_prefix_whitespace.bytes())
7479 .take_while(|(a, b)| a == b)
7480 .count() as u32;
7481 let end = Point::new(
7482 start.row,
7483 start.column + comment_prefix.len() as u32 + matching_whitespace_len,
7484 );
7485 start..end
7486 } else {
7487 start..start
7488 }
7489 }
7490
7491 fn comment_suffix_range(
7492 snapshot: &MultiBufferSnapshot,
7493 row: MultiBufferRow,
7494 comment_suffix: &str,
7495 comment_suffix_has_leading_space: bool,
7496 ) -> Range<Point> {
7497 let end = Point::new(row.0, snapshot.line_len(row));
7498 let suffix_start_column = end.column.saturating_sub(comment_suffix.len() as u32);
7499
7500 let mut line_end_bytes = snapshot
7501 .bytes_in_range(Point::new(end.row, suffix_start_column.saturating_sub(1))..end)
7502 .flatten()
7503 .copied();
7504
7505 let leading_space_len = if suffix_start_column > 0
7506 && line_end_bytes.next() == Some(b' ')
7507 && comment_suffix_has_leading_space
7508 {
7509 1
7510 } else {
7511 0
7512 };
7513
7514 // If this line currently begins with the line comment prefix, then record
7515 // the range containing the prefix.
7516 if line_end_bytes.by_ref().eq(comment_suffix.bytes()) {
7517 let start = Point::new(end.row, suffix_start_column - leading_space_len);
7518 start..end
7519 } else {
7520 end..end
7521 }
7522 }
7523
7524 // TODO: Handle selections that cross excerpts
7525 for selection in &mut selections {
7526 let start_column = snapshot
7527 .indent_size_for_line(MultiBufferRow(selection.start.row))
7528 .len;
7529 let language = if let Some(language) =
7530 snapshot.language_scope_at(Point::new(selection.start.row, start_column))
7531 {
7532 language
7533 } else {
7534 continue;
7535 };
7536
7537 selection_edit_ranges.clear();
7538
7539 // If multiple selections contain a given row, avoid processing that
7540 // row more than once.
7541 let mut start_row = MultiBufferRow(selection.start.row);
7542 if last_toggled_row == Some(start_row) {
7543 start_row = start_row.next_row();
7544 }
7545 let end_row =
7546 if selection.end.row > selection.start.row && selection.end.column == 0 {
7547 MultiBufferRow(selection.end.row - 1)
7548 } else {
7549 MultiBufferRow(selection.end.row)
7550 };
7551 last_toggled_row = Some(end_row);
7552
7553 if start_row > end_row {
7554 continue;
7555 }
7556
7557 // If the language has line comments, toggle those.
7558 let full_comment_prefixes = language.line_comment_prefixes();
7559 if !full_comment_prefixes.is_empty() {
7560 let first_prefix = full_comment_prefixes
7561 .first()
7562 .expect("prefixes is non-empty");
7563 let prefix_trimmed_lengths = full_comment_prefixes
7564 .iter()
7565 .map(|p| p.trim_end_matches(' ').len())
7566 .collect::<SmallVec<[usize; 4]>>();
7567
7568 let mut all_selection_lines_are_comments = true;
7569
7570 for row in start_row.0..=end_row.0 {
7571 let row = MultiBufferRow(row);
7572 if start_row < end_row && snapshot.is_line_blank(row) {
7573 continue;
7574 }
7575
7576 let prefix_range = full_comment_prefixes
7577 .iter()
7578 .zip(prefix_trimmed_lengths.iter().copied())
7579 .map(|(prefix, trimmed_prefix_len)| {
7580 comment_prefix_range(
7581 snapshot.deref(),
7582 row,
7583 &prefix[..trimmed_prefix_len],
7584 &prefix[trimmed_prefix_len..],
7585 )
7586 })
7587 .max_by_key(|range| range.end.column - range.start.column)
7588 .expect("prefixes is non-empty");
7589
7590 if prefix_range.is_empty() {
7591 all_selection_lines_are_comments = false;
7592 }
7593
7594 selection_edit_ranges.push(prefix_range);
7595 }
7596
7597 if all_selection_lines_are_comments {
7598 edits.extend(
7599 selection_edit_ranges
7600 .iter()
7601 .cloned()
7602 .map(|range| (range, empty_str.clone())),
7603 );
7604 } else {
7605 let min_column = selection_edit_ranges
7606 .iter()
7607 .map(|range| range.start.column)
7608 .min()
7609 .unwrap_or(0);
7610 edits.extend(selection_edit_ranges.iter().map(|range| {
7611 let position = Point::new(range.start.row, min_column);
7612 (position..position, first_prefix.clone())
7613 }));
7614 }
7615 } else if let Some((full_comment_prefix, comment_suffix)) =
7616 language.block_comment_delimiters()
7617 {
7618 let comment_prefix = full_comment_prefix.trim_end_matches(' ');
7619 let comment_prefix_whitespace = &full_comment_prefix[comment_prefix.len()..];
7620 let prefix_range = comment_prefix_range(
7621 snapshot.deref(),
7622 start_row,
7623 comment_prefix,
7624 comment_prefix_whitespace,
7625 );
7626 let suffix_range = comment_suffix_range(
7627 snapshot.deref(),
7628 end_row,
7629 comment_suffix.trim_start_matches(' '),
7630 comment_suffix.starts_with(' '),
7631 );
7632
7633 if prefix_range.is_empty() || suffix_range.is_empty() {
7634 edits.push((
7635 prefix_range.start..prefix_range.start,
7636 full_comment_prefix.clone(),
7637 ));
7638 edits.push((suffix_range.end..suffix_range.end, comment_suffix.clone()));
7639 suffixes_inserted.push((end_row, comment_suffix.len()));
7640 } else {
7641 edits.push((prefix_range, empty_str.clone()));
7642 edits.push((suffix_range, empty_str.clone()));
7643 }
7644 } else {
7645 continue;
7646 }
7647 }
7648
7649 drop(snapshot);
7650 this.buffer.update(cx, |buffer, cx| {
7651 buffer.edit(edits, None, cx);
7652 });
7653
7654 // Adjust selections so that they end before any comment suffixes that
7655 // were inserted.
7656 let mut suffixes_inserted = suffixes_inserted.into_iter().peekable();
7657 let mut selections = this.selections.all::<Point>(cx);
7658 let snapshot = this.buffer.read(cx).read(cx);
7659 for selection in &mut selections {
7660 while let Some((row, suffix_len)) = suffixes_inserted.peek().copied() {
7661 match row.cmp(&MultiBufferRow(selection.end.row)) {
7662 Ordering::Less => {
7663 suffixes_inserted.next();
7664 continue;
7665 }
7666 Ordering::Greater => break,
7667 Ordering::Equal => {
7668 if selection.end.column == snapshot.line_len(row) {
7669 if selection.is_empty() {
7670 selection.start.column -= suffix_len as u32;
7671 }
7672 selection.end.column -= suffix_len as u32;
7673 }
7674 break;
7675 }
7676 }
7677 }
7678 }
7679
7680 drop(snapshot);
7681 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
7682
7683 let selections = this.selections.all::<Point>(cx);
7684 let selections_on_single_row = selections.windows(2).all(|selections| {
7685 selections[0].start.row == selections[1].start.row
7686 && selections[0].end.row == selections[1].end.row
7687 && selections[0].start.row == selections[0].end.row
7688 });
7689 let selections_selecting = selections
7690 .iter()
7691 .any(|selection| selection.start != selection.end);
7692 let advance_downwards = action.advance_downwards
7693 && selections_on_single_row
7694 && !selections_selecting
7695 && this.mode != EditorMode::SingleLine;
7696
7697 if advance_downwards {
7698 let snapshot = this.buffer.read(cx).snapshot(cx);
7699
7700 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
7701 s.move_cursors_with(|display_snapshot, display_point, _| {
7702 let mut point = display_point.to_point(display_snapshot);
7703 point.row += 1;
7704 point = snapshot.clip_point(point, Bias::Left);
7705 let display_point = point.to_display_point(display_snapshot);
7706 let goal = SelectionGoal::HorizontalPosition(
7707 display_snapshot
7708 .x_for_display_point(display_point, &text_layout_details)
7709 .into(),
7710 );
7711 (display_point, goal)
7712 })
7713 });
7714 }
7715 });
7716 }
7717
7718 pub fn select_larger_syntax_node(
7719 &mut self,
7720 _: &SelectLargerSyntaxNode,
7721 cx: &mut ViewContext<Self>,
7722 ) {
7723 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
7724 let buffer = self.buffer.read(cx).snapshot(cx);
7725 let old_selections = self.selections.all::<usize>(cx).into_boxed_slice();
7726
7727 let mut stack = mem::take(&mut self.select_larger_syntax_node_stack);
7728 let mut selected_larger_node = false;
7729 let new_selections = old_selections
7730 .iter()
7731 .map(|selection| {
7732 let old_range = selection.start..selection.end;
7733 let mut new_range = old_range.clone();
7734 while let Some(containing_range) =
7735 buffer.range_for_syntax_ancestor(new_range.clone())
7736 {
7737 new_range = containing_range;
7738 if !display_map.intersects_fold(new_range.start)
7739 && !display_map.intersects_fold(new_range.end)
7740 {
7741 break;
7742 }
7743 }
7744
7745 selected_larger_node |= new_range != old_range;
7746 Selection {
7747 id: selection.id,
7748 start: new_range.start,
7749 end: new_range.end,
7750 goal: SelectionGoal::None,
7751 reversed: selection.reversed,
7752 }
7753 })
7754 .collect::<Vec<_>>();
7755
7756 if selected_larger_node {
7757 stack.push(old_selections);
7758 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7759 s.select(new_selections);
7760 });
7761 }
7762 self.select_larger_syntax_node_stack = stack;
7763 }
7764
7765 pub fn select_smaller_syntax_node(
7766 &mut self,
7767 _: &SelectSmallerSyntaxNode,
7768 cx: &mut ViewContext<Self>,
7769 ) {
7770 let mut stack = mem::take(&mut self.select_larger_syntax_node_stack);
7771 if let Some(selections) = stack.pop() {
7772 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7773 s.select(selections.to_vec());
7774 });
7775 }
7776 self.select_larger_syntax_node_stack = stack;
7777 }
7778
7779 fn refresh_runnables(&mut self, cx: &mut ViewContext<Self>) -> Task<()> {
7780 let project = self.project.clone();
7781 cx.spawn(|this, mut cx| async move {
7782 let Ok(display_snapshot) = this.update(&mut cx, |this, cx| {
7783 this.display_map.update(cx, |map, cx| map.snapshot(cx))
7784 }) else {
7785 return;
7786 };
7787
7788 let Some(project) = project else {
7789 return;
7790 };
7791 if project
7792 .update(&mut cx, |this, _| this.is_remote())
7793 .unwrap_or(true)
7794 {
7795 // Do not display any test indicators in remote projects.
7796 return;
7797 }
7798 let new_rows =
7799 cx.background_executor()
7800 .spawn({
7801 let snapshot = display_snapshot.clone();
7802 async move {
7803 Self::fetch_runnable_ranges(&snapshot, Anchor::min()..Anchor::max())
7804 }
7805 })
7806 .await;
7807 let rows = Self::runnable_rows(project, display_snapshot, new_rows, cx.clone());
7808
7809 this.update(&mut cx, |this, _| {
7810 this.clear_tasks();
7811 for (key, value) in rows {
7812 this.insert_tasks(key, value);
7813 }
7814 })
7815 .ok();
7816 })
7817 }
7818 fn fetch_runnable_ranges(
7819 snapshot: &DisplaySnapshot,
7820 range: Range<Anchor>,
7821 ) -> Vec<language::RunnableRange> {
7822 snapshot.buffer_snapshot.runnable_ranges(range).collect()
7823 }
7824
7825 fn runnable_rows(
7826 project: Model<Project>,
7827 snapshot: DisplaySnapshot,
7828 runnable_ranges: Vec<RunnableRange>,
7829 mut cx: AsyncWindowContext,
7830 ) -> Vec<((BufferId, u32), (usize, RunnableTasks))> {
7831 runnable_ranges
7832 .into_iter()
7833 .filter_map(|mut runnable| {
7834 let (tasks, _) = cx
7835 .update(|cx| {
7836 Self::resolve_runnable(project.clone(), &mut runnable.runnable, cx)
7837 })
7838 .ok()?;
7839 if tasks.is_empty() {
7840 return None;
7841 }
7842
7843 let point = runnable.run_range.start.to_point(&snapshot.buffer_snapshot);
7844
7845 let row = snapshot
7846 .buffer_snapshot
7847 .buffer_line_for_row(MultiBufferRow(point.row))?
7848 .1
7849 .start
7850 .row;
7851
7852 Some((
7853 (runnable.buffer_id, row),
7854 (
7855 runnable.run_range.start,
7856 RunnableTasks {
7857 templates: tasks,
7858 column: point.column,
7859 extra_variables: runnable.extra_captures,
7860 },
7861 ),
7862 ))
7863 })
7864 .collect()
7865 }
7866
7867 fn resolve_runnable(
7868 project: Model<Project>,
7869 runnable: &mut Runnable,
7870 cx: &WindowContext<'_>,
7871 ) -> (Vec<(TaskSourceKind, TaskTemplate)>, Option<WorktreeId>) {
7872 let (inventory, worktree_id) = project.read_with(cx, |project, cx| {
7873 let worktree_id = project
7874 .buffer_for_id(runnable.buffer)
7875 .and_then(|buffer| buffer.read(cx).file())
7876 .map(|file| WorktreeId::from_usize(file.worktree_id()));
7877
7878 (project.task_inventory().clone(), worktree_id)
7879 });
7880
7881 let inventory = inventory.read(cx);
7882 let tags = mem::take(&mut runnable.tags);
7883 let mut tags: Vec<_> = tags
7884 .into_iter()
7885 .flat_map(|tag| {
7886 let tag = tag.0.clone();
7887 inventory
7888 .list_tasks(Some(runnable.language.clone()), worktree_id)
7889 .into_iter()
7890 .filter(move |(_, template)| {
7891 template.tags.iter().any(|source_tag| source_tag == &tag)
7892 })
7893 })
7894 .sorted_by_key(|(kind, _)| kind.to_owned())
7895 .collect();
7896 if let Some((leading_tag_source, _)) = tags.first() {
7897 // Strongest source wins; if we have worktree tag binding, prefer that to
7898 // global and language bindings;
7899 // if we have a global binding, prefer that to language binding.
7900 let first_mismatch = tags
7901 .iter()
7902 .position(|(tag_source, _)| tag_source != leading_tag_source);
7903 if let Some(index) = first_mismatch {
7904 tags.truncate(index);
7905 }
7906 }
7907
7908 (tags, worktree_id)
7909 }
7910
7911 pub fn move_to_enclosing_bracket(
7912 &mut self,
7913 _: &MoveToEnclosingBracket,
7914 cx: &mut ViewContext<Self>,
7915 ) {
7916 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7917 s.move_offsets_with(|snapshot, selection| {
7918 let Some(enclosing_bracket_ranges) =
7919 snapshot.enclosing_bracket_ranges(selection.start..selection.end)
7920 else {
7921 return;
7922 };
7923
7924 let mut best_length = usize::MAX;
7925 let mut best_inside = false;
7926 let mut best_in_bracket_range = false;
7927 let mut best_destination = None;
7928 for (open, close) in enclosing_bracket_ranges {
7929 let close = close.to_inclusive();
7930 let length = close.end() - open.start;
7931 let inside = selection.start >= open.end && selection.end <= *close.start();
7932 let in_bracket_range = open.to_inclusive().contains(&selection.head())
7933 || close.contains(&selection.head());
7934
7935 // If best is next to a bracket and current isn't, skip
7936 if !in_bracket_range && best_in_bracket_range {
7937 continue;
7938 }
7939
7940 // Prefer smaller lengths unless best is inside and current isn't
7941 if length > best_length && (best_inside || !inside) {
7942 continue;
7943 }
7944
7945 best_length = length;
7946 best_inside = inside;
7947 best_in_bracket_range = in_bracket_range;
7948 best_destination = Some(
7949 if close.contains(&selection.start) && close.contains(&selection.end) {
7950 if inside {
7951 open.end
7952 } else {
7953 open.start
7954 }
7955 } else {
7956 if inside {
7957 *close.start()
7958 } else {
7959 *close.end()
7960 }
7961 },
7962 );
7963 }
7964
7965 if let Some(destination) = best_destination {
7966 selection.collapse_to(destination, SelectionGoal::None);
7967 }
7968 })
7969 });
7970 }
7971
7972 pub fn undo_selection(&mut self, _: &UndoSelection, cx: &mut ViewContext<Self>) {
7973 self.end_selection(cx);
7974 self.selection_history.mode = SelectionHistoryMode::Undoing;
7975 if let Some(entry) = self.selection_history.undo_stack.pop_back() {
7976 self.change_selections(None, cx, |s| s.select_anchors(entry.selections.to_vec()));
7977 self.select_next_state = entry.select_next_state;
7978 self.select_prev_state = entry.select_prev_state;
7979 self.add_selections_state = entry.add_selections_state;
7980 self.request_autoscroll(Autoscroll::newest(), cx);
7981 }
7982 self.selection_history.mode = SelectionHistoryMode::Normal;
7983 }
7984
7985 pub fn redo_selection(&mut self, _: &RedoSelection, cx: &mut ViewContext<Self>) {
7986 self.end_selection(cx);
7987 self.selection_history.mode = SelectionHistoryMode::Redoing;
7988 if let Some(entry) = self.selection_history.redo_stack.pop_back() {
7989 self.change_selections(None, cx, |s| s.select_anchors(entry.selections.to_vec()));
7990 self.select_next_state = entry.select_next_state;
7991 self.select_prev_state = entry.select_prev_state;
7992 self.add_selections_state = entry.add_selections_state;
7993 self.request_autoscroll(Autoscroll::newest(), cx);
7994 }
7995 self.selection_history.mode = SelectionHistoryMode::Normal;
7996 }
7997
7998 pub fn expand_excerpts(&mut self, action: &ExpandExcerpts, cx: &mut ViewContext<Self>) {
7999 let selections = self.selections.disjoint_anchors();
8000
8001 let lines = if action.lines == 0 { 3 } else { action.lines };
8002
8003 self.buffer.update(cx, |buffer, cx| {
8004 buffer.expand_excerpts(
8005 selections
8006 .into_iter()
8007 .map(|selection| selection.head().excerpt_id)
8008 .dedup(),
8009 lines,
8010 cx,
8011 )
8012 })
8013 }
8014
8015 pub fn expand_excerpt(&mut self, excerpt: ExcerptId, cx: &mut ViewContext<Self>) {
8016 self.buffer
8017 .update(cx, |buffer, cx| buffer.expand_excerpts([excerpt], 3, cx))
8018 }
8019
8020 fn go_to_diagnostic(&mut self, _: &GoToDiagnostic, cx: &mut ViewContext<Self>) {
8021 self.go_to_diagnostic_impl(Direction::Next, cx)
8022 }
8023
8024 fn go_to_prev_diagnostic(&mut self, _: &GoToPrevDiagnostic, cx: &mut ViewContext<Self>) {
8025 self.go_to_diagnostic_impl(Direction::Prev, cx)
8026 }
8027
8028 pub fn go_to_diagnostic_impl(&mut self, direction: Direction, cx: &mut ViewContext<Self>) {
8029 let buffer = self.buffer.read(cx).snapshot(cx);
8030 let selection = self.selections.newest::<usize>(cx);
8031
8032 // If there is an active Diagnostic Popover jump to its diagnostic instead.
8033 if direction == Direction::Next {
8034 if let Some(popover) = self.hover_state.diagnostic_popover.as_ref() {
8035 let (group_id, jump_to) = popover.activation_info();
8036 if self.activate_diagnostics(group_id, cx) {
8037 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8038 let mut new_selection = s.newest_anchor().clone();
8039 new_selection.collapse_to(jump_to, SelectionGoal::None);
8040 s.select_anchors(vec![new_selection.clone()]);
8041 });
8042 }
8043 return;
8044 }
8045 }
8046
8047 let mut active_primary_range = self.active_diagnostics.as_ref().map(|active_diagnostics| {
8048 active_diagnostics
8049 .primary_range
8050 .to_offset(&buffer)
8051 .to_inclusive()
8052 });
8053 let mut search_start = if let Some(active_primary_range) = active_primary_range.as_ref() {
8054 if active_primary_range.contains(&selection.head()) {
8055 *active_primary_range.start()
8056 } else {
8057 selection.head()
8058 }
8059 } else {
8060 selection.head()
8061 };
8062 let snapshot = self.snapshot(cx);
8063 loop {
8064 let diagnostics = if direction == Direction::Prev {
8065 buffer.diagnostics_in_range::<_, usize>(0..search_start, true)
8066 } else {
8067 buffer.diagnostics_in_range::<_, usize>(search_start..buffer.len(), false)
8068 }
8069 .filter(|diagnostic| !snapshot.intersects_fold(diagnostic.range.start));
8070 let group = diagnostics
8071 // relies on diagnostics_in_range to return diagnostics with the same starting range to
8072 // be sorted in a stable way
8073 // skip until we are at current active diagnostic, if it exists
8074 .skip_while(|entry| {
8075 (match direction {
8076 Direction::Prev => entry.range.start >= search_start,
8077 Direction::Next => entry.range.start <= search_start,
8078 }) && self
8079 .active_diagnostics
8080 .as_ref()
8081 .is_some_and(|a| a.group_id != entry.diagnostic.group_id)
8082 })
8083 .find_map(|entry| {
8084 if entry.diagnostic.is_primary
8085 && entry.diagnostic.severity <= DiagnosticSeverity::WARNING
8086 && !entry.range.is_empty()
8087 // if we match with the active diagnostic, skip it
8088 && Some(entry.diagnostic.group_id)
8089 != self.active_diagnostics.as_ref().map(|d| d.group_id)
8090 {
8091 Some((entry.range, entry.diagnostic.group_id))
8092 } else {
8093 None
8094 }
8095 });
8096
8097 if let Some((primary_range, group_id)) = group {
8098 if self.activate_diagnostics(group_id, cx) {
8099 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8100 s.select(vec![Selection {
8101 id: selection.id,
8102 start: primary_range.start,
8103 end: primary_range.start,
8104 reversed: false,
8105 goal: SelectionGoal::None,
8106 }]);
8107 });
8108 }
8109 break;
8110 } else {
8111 // Cycle around to the start of the buffer, potentially moving back to the start of
8112 // the currently active diagnostic.
8113 active_primary_range.take();
8114 if direction == Direction::Prev {
8115 if search_start == buffer.len() {
8116 break;
8117 } else {
8118 search_start = buffer.len();
8119 }
8120 } else if search_start == 0 {
8121 break;
8122 } else {
8123 search_start = 0;
8124 }
8125 }
8126 }
8127 }
8128
8129 fn go_to_hunk(&mut self, _: &GoToHunk, cx: &mut ViewContext<Self>) {
8130 let snapshot = self
8131 .display_map
8132 .update(cx, |display_map, cx| display_map.snapshot(cx));
8133 let selection = self.selections.newest::<Point>(cx);
8134
8135 if !self.seek_in_direction(
8136 &snapshot,
8137 selection.head(),
8138 false,
8139 snapshot.buffer_snapshot.git_diff_hunks_in_range(
8140 MultiBufferRow(selection.head().row + 1)..MultiBufferRow::MAX,
8141 ),
8142 cx,
8143 ) {
8144 let wrapped_point = Point::zero();
8145 self.seek_in_direction(
8146 &snapshot,
8147 wrapped_point,
8148 true,
8149 snapshot.buffer_snapshot.git_diff_hunks_in_range(
8150 MultiBufferRow(wrapped_point.row + 1)..MultiBufferRow::MAX,
8151 ),
8152 cx,
8153 );
8154 }
8155 }
8156
8157 fn go_to_prev_hunk(&mut self, _: &GoToPrevHunk, cx: &mut ViewContext<Self>) {
8158 let snapshot = self
8159 .display_map
8160 .update(cx, |display_map, cx| display_map.snapshot(cx));
8161 let selection = self.selections.newest::<Point>(cx);
8162
8163 if !self.seek_in_direction(
8164 &snapshot,
8165 selection.head(),
8166 false,
8167 snapshot.buffer_snapshot.git_diff_hunks_in_range_rev(
8168 MultiBufferRow(0)..MultiBufferRow(selection.head().row),
8169 ),
8170 cx,
8171 ) {
8172 let wrapped_point = snapshot.buffer_snapshot.max_point();
8173 self.seek_in_direction(
8174 &snapshot,
8175 wrapped_point,
8176 true,
8177 snapshot.buffer_snapshot.git_diff_hunks_in_range_rev(
8178 MultiBufferRow(0)..MultiBufferRow(wrapped_point.row),
8179 ),
8180 cx,
8181 );
8182 }
8183 }
8184
8185 fn seek_in_direction(
8186 &mut self,
8187 snapshot: &DisplaySnapshot,
8188 initial_point: Point,
8189 is_wrapped: bool,
8190 hunks: impl Iterator<Item = DiffHunk<MultiBufferRow>>,
8191 cx: &mut ViewContext<Editor>,
8192 ) -> bool {
8193 let display_point = initial_point.to_display_point(snapshot);
8194 let mut hunks = hunks
8195 .map(|hunk| diff_hunk_to_display(&hunk, &snapshot))
8196 .filter(|hunk| {
8197 if is_wrapped {
8198 true
8199 } else {
8200 !hunk.contains_display_row(display_point.row())
8201 }
8202 })
8203 .dedup();
8204
8205 if let Some(hunk) = hunks.next() {
8206 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8207 let row = hunk.start_display_row();
8208 let point = DisplayPoint::new(row, 0);
8209 s.select_display_ranges([point..point]);
8210 });
8211
8212 true
8213 } else {
8214 false
8215 }
8216 }
8217
8218 pub fn go_to_definition(
8219 &mut self,
8220 _: &GoToDefinition,
8221 cx: &mut ViewContext<Self>,
8222 ) -> Task<Result<bool>> {
8223 self.go_to_definition_of_kind(GotoDefinitionKind::Symbol, false, cx)
8224 }
8225
8226 pub fn go_to_implementation(
8227 &mut self,
8228 _: &GoToImplementation,
8229 cx: &mut ViewContext<Self>,
8230 ) -> Task<Result<bool>> {
8231 self.go_to_definition_of_kind(GotoDefinitionKind::Implementation, false, cx)
8232 }
8233
8234 pub fn go_to_implementation_split(
8235 &mut self,
8236 _: &GoToImplementationSplit,
8237 cx: &mut ViewContext<Self>,
8238 ) -> Task<Result<bool>> {
8239 self.go_to_definition_of_kind(GotoDefinitionKind::Implementation, true, cx)
8240 }
8241
8242 pub fn go_to_type_definition(
8243 &mut self,
8244 _: &GoToTypeDefinition,
8245 cx: &mut ViewContext<Self>,
8246 ) -> Task<Result<bool>> {
8247 self.go_to_definition_of_kind(GotoDefinitionKind::Type, false, cx)
8248 }
8249
8250 pub fn go_to_definition_split(
8251 &mut self,
8252 _: &GoToDefinitionSplit,
8253 cx: &mut ViewContext<Self>,
8254 ) -> Task<Result<bool>> {
8255 self.go_to_definition_of_kind(GotoDefinitionKind::Symbol, true, cx)
8256 }
8257
8258 pub fn go_to_type_definition_split(
8259 &mut self,
8260 _: &GoToTypeDefinitionSplit,
8261 cx: &mut ViewContext<Self>,
8262 ) -> Task<Result<bool>> {
8263 self.go_to_definition_of_kind(GotoDefinitionKind::Type, true, cx)
8264 }
8265
8266 fn go_to_definition_of_kind(
8267 &mut self,
8268 kind: GotoDefinitionKind,
8269 split: bool,
8270 cx: &mut ViewContext<Self>,
8271 ) -> Task<Result<bool>> {
8272 let Some(workspace) = self.workspace() else {
8273 return Task::ready(Ok(false));
8274 };
8275 let buffer = self.buffer.read(cx);
8276 let head = self.selections.newest::<usize>(cx).head();
8277 let (buffer, head) = if let Some(text_anchor) = buffer.text_anchor_for_position(head, cx) {
8278 text_anchor
8279 } else {
8280 return Task::ready(Ok(false));
8281 };
8282
8283 let project = workspace.read(cx).project().clone();
8284 let definitions = project.update(cx, |project, cx| match kind {
8285 GotoDefinitionKind::Symbol => project.definition(&buffer, head, cx),
8286 GotoDefinitionKind::Type => project.type_definition(&buffer, head, cx),
8287 GotoDefinitionKind::Implementation => project.implementation(&buffer, head, cx),
8288 });
8289
8290 cx.spawn(|editor, mut cx| async move {
8291 let definitions = definitions.await?;
8292 let navigated = editor
8293 .update(&mut cx, |editor, cx| {
8294 editor.navigate_to_hover_links(
8295 Some(kind),
8296 definitions
8297 .into_iter()
8298 .filter(|location| {
8299 hover_links::exclude_link_to_position(&buffer, &head, location, cx)
8300 })
8301 .map(HoverLink::Text)
8302 .collect::<Vec<_>>(),
8303 split,
8304 cx,
8305 )
8306 })?
8307 .await?;
8308 anyhow::Ok(navigated)
8309 })
8310 }
8311
8312 pub fn open_url(&mut self, _: &OpenUrl, cx: &mut ViewContext<Self>) {
8313 let position = self.selections.newest_anchor().head();
8314 let Some((buffer, buffer_position)) =
8315 self.buffer.read(cx).text_anchor_for_position(position, cx)
8316 else {
8317 return;
8318 };
8319
8320 cx.spawn(|editor, mut cx| async move {
8321 if let Some((_, url)) = find_url(&buffer, buffer_position, cx.clone()) {
8322 editor.update(&mut cx, |_, cx| {
8323 cx.open_url(&url);
8324 })
8325 } else {
8326 Ok(())
8327 }
8328 })
8329 .detach();
8330 }
8331
8332 pub(crate) fn navigate_to_hover_links(
8333 &mut self,
8334 kind: Option<GotoDefinitionKind>,
8335 mut definitions: Vec<HoverLink>,
8336 split: bool,
8337 cx: &mut ViewContext<Editor>,
8338 ) -> Task<Result<bool>> {
8339 // If there is one definition, just open it directly
8340 if definitions.len() == 1 {
8341 let definition = definitions.pop().unwrap();
8342 let target_task = match definition {
8343 HoverLink::Text(link) => Task::Ready(Some(Ok(Some(link.target)))),
8344 HoverLink::InlayHint(lsp_location, server_id) => {
8345 self.compute_target_location(lsp_location, server_id, cx)
8346 }
8347 HoverLink::Url(url) => {
8348 cx.open_url(&url);
8349 Task::ready(Ok(None))
8350 }
8351 };
8352 cx.spawn(|editor, mut cx| async move {
8353 let target = target_task.await.context("target resolution task")?;
8354 if let Some(target) = target {
8355 editor.update(&mut cx, |editor, cx| {
8356 let Some(workspace) = editor.workspace() else {
8357 return false;
8358 };
8359 let pane = workspace.read(cx).active_pane().clone();
8360
8361 let range = target.range.to_offset(target.buffer.read(cx));
8362 let range = editor.range_for_match(&range);
8363 if Some(&target.buffer) == editor.buffer.read(cx).as_singleton().as_ref() {
8364 editor.change_selections(Some(Autoscroll::focused()), cx, |s| {
8365 s.select_ranges([range]);
8366 });
8367 } else {
8368 cx.window_context().defer(move |cx| {
8369 let target_editor: View<Self> =
8370 workspace.update(cx, |workspace, cx| {
8371 let pane = if split {
8372 workspace.adjacent_pane(cx)
8373 } else {
8374 workspace.active_pane().clone()
8375 };
8376
8377 workspace.open_project_item(pane, target.buffer.clone(), cx)
8378 });
8379 target_editor.update(cx, |target_editor, cx| {
8380 // When selecting a definition in a different buffer, disable the nav history
8381 // to avoid creating a history entry at the previous cursor location.
8382 pane.update(cx, |pane, _| pane.disable_history());
8383 target_editor.change_selections(
8384 Some(Autoscroll::focused()),
8385 cx,
8386 |s| {
8387 s.select_ranges([range]);
8388 },
8389 );
8390 pane.update(cx, |pane, _| pane.enable_history());
8391 });
8392 });
8393 }
8394 true
8395 })
8396 } else {
8397 Ok(false)
8398 }
8399 })
8400 } else if !definitions.is_empty() {
8401 let replica_id = self.replica_id(cx);
8402 cx.spawn(|editor, mut cx| async move {
8403 let (title, location_tasks, workspace) = editor
8404 .update(&mut cx, |editor, cx| {
8405 let tab_kind = match kind {
8406 Some(GotoDefinitionKind::Implementation) => "Implementations",
8407 _ => "Definitions",
8408 };
8409 let title = definitions
8410 .iter()
8411 .find_map(|definition| match definition {
8412 HoverLink::Text(link) => link.origin.as_ref().map(|origin| {
8413 let buffer = origin.buffer.read(cx);
8414 format!(
8415 "{} for {}",
8416 tab_kind,
8417 buffer
8418 .text_for_range(origin.range.clone())
8419 .collect::<String>()
8420 )
8421 }),
8422 HoverLink::InlayHint(_, _) => None,
8423 HoverLink::Url(_) => None,
8424 })
8425 .unwrap_or(tab_kind.to_string());
8426 let location_tasks = definitions
8427 .into_iter()
8428 .map(|definition| match definition {
8429 HoverLink::Text(link) => Task::Ready(Some(Ok(Some(link.target)))),
8430 HoverLink::InlayHint(lsp_location, server_id) => {
8431 editor.compute_target_location(lsp_location, server_id, cx)
8432 }
8433 HoverLink::Url(_) => Task::ready(Ok(None)),
8434 })
8435 .collect::<Vec<_>>();
8436 (title, location_tasks, editor.workspace().clone())
8437 })
8438 .context("location tasks preparation")?;
8439
8440 let locations = futures::future::join_all(location_tasks)
8441 .await
8442 .into_iter()
8443 .filter_map(|location| location.transpose())
8444 .collect::<Result<_>>()
8445 .context("location tasks")?;
8446
8447 let Some(workspace) = workspace else {
8448 return Ok(false);
8449 };
8450 let opened = workspace
8451 .update(&mut cx, |workspace, cx| {
8452 Self::open_locations_in_multibuffer(
8453 workspace, locations, replica_id, title, split, cx,
8454 )
8455 })
8456 .ok();
8457
8458 anyhow::Ok(opened.is_some())
8459 })
8460 } else {
8461 Task::ready(Ok(false))
8462 }
8463 }
8464
8465 fn compute_target_location(
8466 &self,
8467 lsp_location: lsp::Location,
8468 server_id: LanguageServerId,
8469 cx: &mut ViewContext<Editor>,
8470 ) -> Task<anyhow::Result<Option<Location>>> {
8471 let Some(project) = self.project.clone() else {
8472 return Task::Ready(Some(Ok(None)));
8473 };
8474
8475 cx.spawn(move |editor, mut cx| async move {
8476 let location_task = editor.update(&mut cx, |editor, cx| {
8477 project.update(cx, |project, cx| {
8478 let language_server_name =
8479 editor.buffer.read(cx).as_singleton().and_then(|buffer| {
8480 project
8481 .language_server_for_buffer(buffer.read(cx), server_id, cx)
8482 .map(|(lsp_adapter, _)| lsp_adapter.name.clone())
8483 });
8484 language_server_name.map(|language_server_name| {
8485 project.open_local_buffer_via_lsp(
8486 lsp_location.uri.clone(),
8487 server_id,
8488 language_server_name,
8489 cx,
8490 )
8491 })
8492 })
8493 })?;
8494 let location = match location_task {
8495 Some(task) => Some({
8496 let target_buffer_handle = task.await.context("open local buffer")?;
8497 let range = target_buffer_handle.update(&mut cx, |target_buffer, _| {
8498 let target_start = target_buffer
8499 .clip_point_utf16(point_from_lsp(lsp_location.range.start), Bias::Left);
8500 let target_end = target_buffer
8501 .clip_point_utf16(point_from_lsp(lsp_location.range.end), Bias::Left);
8502 target_buffer.anchor_after(target_start)
8503 ..target_buffer.anchor_before(target_end)
8504 })?;
8505 Location {
8506 buffer: target_buffer_handle,
8507 range,
8508 }
8509 }),
8510 None => None,
8511 };
8512 Ok(location)
8513 })
8514 }
8515
8516 pub fn find_all_references(
8517 &mut self,
8518 _: &FindAllReferences,
8519 cx: &mut ViewContext<Self>,
8520 ) -> Option<Task<Result<()>>> {
8521 let multi_buffer = self.buffer.read(cx);
8522 let selection = self.selections.newest::<usize>(cx);
8523 let head = selection.head();
8524
8525 let multi_buffer_snapshot = multi_buffer.snapshot(cx);
8526 let head_anchor = multi_buffer_snapshot.anchor_at(
8527 head,
8528 if head < selection.tail() {
8529 Bias::Right
8530 } else {
8531 Bias::Left
8532 },
8533 );
8534
8535 match self
8536 .find_all_references_task_sources
8537 .binary_search_by(|anchor| anchor.cmp(&head_anchor, &multi_buffer_snapshot))
8538 {
8539 Ok(_) => {
8540 log::info!(
8541 "Ignoring repeated FindAllReferences invocation with the position of already running task"
8542 );
8543 return None;
8544 }
8545 Err(i) => {
8546 self.find_all_references_task_sources.insert(i, head_anchor);
8547 }
8548 }
8549
8550 let (buffer, head) = multi_buffer.text_anchor_for_position(head, cx)?;
8551 let replica_id = self.replica_id(cx);
8552 let workspace = self.workspace()?;
8553 let project = workspace.read(cx).project().clone();
8554 let references = project.update(cx, |project, cx| project.references(&buffer, head, cx));
8555 Some(cx.spawn(|editor, mut cx| async move {
8556 let _cleanup = defer({
8557 let mut cx = cx.clone();
8558 move || {
8559 let _ = editor.update(&mut cx, |editor, _| {
8560 if let Ok(i) =
8561 editor
8562 .find_all_references_task_sources
8563 .binary_search_by(|anchor| {
8564 anchor.cmp(&head_anchor, &multi_buffer_snapshot)
8565 })
8566 {
8567 editor.find_all_references_task_sources.remove(i);
8568 }
8569 });
8570 }
8571 });
8572
8573 let locations = references.await?;
8574 if locations.is_empty() {
8575 return anyhow::Ok(());
8576 }
8577
8578 workspace.update(&mut cx, |workspace, cx| {
8579 let title = locations
8580 .first()
8581 .as_ref()
8582 .map(|location| {
8583 let buffer = location.buffer.read(cx);
8584 format!(
8585 "References to `{}`",
8586 buffer
8587 .text_for_range(location.range.clone())
8588 .collect::<String>()
8589 )
8590 })
8591 .unwrap();
8592 Self::open_locations_in_multibuffer(
8593 workspace, locations, replica_id, title, false, cx,
8594 );
8595 })
8596 }))
8597 }
8598
8599 /// Opens a multibuffer with the given project locations in it
8600 pub fn open_locations_in_multibuffer(
8601 workspace: &mut Workspace,
8602 mut locations: Vec<Location>,
8603 replica_id: ReplicaId,
8604 title: String,
8605 split: bool,
8606 cx: &mut ViewContext<Workspace>,
8607 ) {
8608 // If there are multiple definitions, open them in a multibuffer
8609 locations.sort_by_key(|location| location.buffer.read(cx).remote_id());
8610 let mut locations = locations.into_iter().peekable();
8611 let mut ranges_to_highlight = Vec::new();
8612 let capability = workspace.project().read(cx).capability();
8613
8614 let excerpt_buffer = cx.new_model(|cx| {
8615 let mut multibuffer = MultiBuffer::new(replica_id, capability);
8616 while let Some(location) = locations.next() {
8617 let buffer = location.buffer.read(cx);
8618 let mut ranges_for_buffer = Vec::new();
8619 let range = location.range.to_offset(buffer);
8620 ranges_for_buffer.push(range.clone());
8621
8622 while let Some(next_location) = locations.peek() {
8623 if next_location.buffer == location.buffer {
8624 ranges_for_buffer.push(next_location.range.to_offset(buffer));
8625 locations.next();
8626 } else {
8627 break;
8628 }
8629 }
8630
8631 ranges_for_buffer.sort_by_key(|range| (range.start, Reverse(range.end)));
8632 ranges_to_highlight.extend(multibuffer.push_excerpts_with_context_lines(
8633 location.buffer.clone(),
8634 ranges_for_buffer,
8635 DEFAULT_MULTIBUFFER_CONTEXT,
8636 cx,
8637 ))
8638 }
8639
8640 multibuffer.with_title(title)
8641 });
8642
8643 let editor = cx.new_view(|cx| {
8644 Editor::for_multibuffer(excerpt_buffer, Some(workspace.project().clone()), cx)
8645 });
8646 editor.update(cx, |editor, cx| {
8647 editor.highlight_background::<Self>(
8648 &ranges_to_highlight,
8649 |theme| theme.editor_highlighted_line_background,
8650 cx,
8651 );
8652 });
8653
8654 let item = Box::new(editor);
8655 let item_id = item.item_id();
8656
8657 if split {
8658 workspace.split_item(SplitDirection::Right, item.clone(), cx);
8659 } else {
8660 let destination_index = workspace.active_pane().update(cx, |pane, cx| {
8661 if PreviewTabsSettings::get_global(cx).enable_preview_from_code_navigation {
8662 pane.close_current_preview_item(cx)
8663 } else {
8664 None
8665 }
8666 });
8667 workspace.add_item_to_active_pane(item.clone(), destination_index, cx);
8668 }
8669 workspace.active_pane().update(cx, |pane, cx| {
8670 pane.set_preview_item_id(Some(item_id), cx);
8671 });
8672 }
8673
8674 pub fn rename(&mut self, _: &Rename, cx: &mut ViewContext<Self>) -> Option<Task<Result<()>>> {
8675 use language::ToOffset as _;
8676
8677 let project = self.project.clone()?;
8678 let selection = self.selections.newest_anchor().clone();
8679 let (cursor_buffer, cursor_buffer_position) = self
8680 .buffer
8681 .read(cx)
8682 .text_anchor_for_position(selection.head(), cx)?;
8683 let (tail_buffer, cursor_buffer_position_end) = self
8684 .buffer
8685 .read(cx)
8686 .text_anchor_for_position(selection.tail(), cx)?;
8687 if tail_buffer != cursor_buffer {
8688 return None;
8689 }
8690
8691 let snapshot = cursor_buffer.read(cx).snapshot();
8692 let cursor_buffer_offset = cursor_buffer_position.to_offset(&snapshot);
8693 let cursor_buffer_offset_end = cursor_buffer_position_end.to_offset(&snapshot);
8694 let prepare_rename = project.update(cx, |project, cx| {
8695 project.prepare_rename(cursor_buffer.clone(), cursor_buffer_offset, cx)
8696 });
8697 drop(snapshot);
8698
8699 Some(cx.spawn(|this, mut cx| async move {
8700 let rename_range = if let Some(range) = prepare_rename.await? {
8701 Some(range)
8702 } else {
8703 this.update(&mut cx, |this, cx| {
8704 let buffer = this.buffer.read(cx).snapshot(cx);
8705 let mut buffer_highlights = this
8706 .document_highlights_for_position(selection.head(), &buffer)
8707 .filter(|highlight| {
8708 highlight.start.excerpt_id == selection.head().excerpt_id
8709 && highlight.end.excerpt_id == selection.head().excerpt_id
8710 });
8711 buffer_highlights
8712 .next()
8713 .map(|highlight| highlight.start.text_anchor..highlight.end.text_anchor)
8714 })?
8715 };
8716 if let Some(rename_range) = rename_range {
8717 this.update(&mut cx, |this, cx| {
8718 let snapshot = cursor_buffer.read(cx).snapshot();
8719 let rename_buffer_range = rename_range.to_offset(&snapshot);
8720 let cursor_offset_in_rename_range =
8721 cursor_buffer_offset.saturating_sub(rename_buffer_range.start);
8722 let cursor_offset_in_rename_range_end =
8723 cursor_buffer_offset_end.saturating_sub(rename_buffer_range.start);
8724
8725 this.take_rename(false, cx);
8726 let buffer = this.buffer.read(cx).read(cx);
8727 let cursor_offset = selection.head().to_offset(&buffer);
8728 let rename_start = cursor_offset.saturating_sub(cursor_offset_in_rename_range);
8729 let rename_end = rename_start + rename_buffer_range.len();
8730 let range = buffer.anchor_before(rename_start)..buffer.anchor_after(rename_end);
8731 let mut old_highlight_id = None;
8732 let old_name: Arc<str> = buffer
8733 .chunks(rename_start..rename_end, true)
8734 .map(|chunk| {
8735 if old_highlight_id.is_none() {
8736 old_highlight_id = chunk.syntax_highlight_id;
8737 }
8738 chunk.text
8739 })
8740 .collect::<String>()
8741 .into();
8742
8743 drop(buffer);
8744
8745 // Position the selection in the rename editor so that it matches the current selection.
8746 this.show_local_selections = false;
8747 let rename_editor = cx.new_view(|cx| {
8748 let mut editor = Editor::single_line(cx);
8749 editor.buffer.update(cx, |buffer, cx| {
8750 buffer.edit([(0..0, old_name.clone())], None, cx)
8751 });
8752 let rename_selection_range = match cursor_offset_in_rename_range
8753 .cmp(&cursor_offset_in_rename_range_end)
8754 {
8755 Ordering::Equal => {
8756 editor.select_all(&SelectAll, cx);
8757 return editor;
8758 }
8759 Ordering::Less => {
8760 cursor_offset_in_rename_range..cursor_offset_in_rename_range_end
8761 }
8762 Ordering::Greater => {
8763 cursor_offset_in_rename_range_end..cursor_offset_in_rename_range
8764 }
8765 };
8766 if rename_selection_range.end > old_name.len() {
8767 editor.select_all(&SelectAll, cx);
8768 } else {
8769 editor.change_selections(Some(Autoscroll::fit()), cx, |s| {
8770 s.select_ranges([rename_selection_range]);
8771 });
8772 }
8773 editor
8774 });
8775
8776 let write_highlights =
8777 this.clear_background_highlights::<DocumentHighlightWrite>(cx);
8778 let read_highlights =
8779 this.clear_background_highlights::<DocumentHighlightRead>(cx);
8780 let ranges = write_highlights
8781 .iter()
8782 .flat_map(|(_, ranges)| ranges.iter())
8783 .chain(read_highlights.iter().flat_map(|(_, ranges)| ranges.iter()))
8784 .cloned()
8785 .collect();
8786
8787 this.highlight_text::<Rename>(
8788 ranges,
8789 HighlightStyle {
8790 fade_out: Some(0.6),
8791 ..Default::default()
8792 },
8793 cx,
8794 );
8795 let rename_focus_handle = rename_editor.focus_handle(cx);
8796 cx.focus(&rename_focus_handle);
8797 let block_id = this.insert_blocks(
8798 [BlockProperties {
8799 style: BlockStyle::Flex,
8800 position: range.start,
8801 height: 1,
8802 render: Box::new({
8803 let rename_editor = rename_editor.clone();
8804 move |cx: &mut BlockContext| {
8805 let mut text_style = cx.editor_style.text.clone();
8806 if let Some(highlight_style) = old_highlight_id
8807 .and_then(|h| h.style(&cx.editor_style.syntax))
8808 {
8809 text_style = text_style.highlight(highlight_style);
8810 }
8811 div()
8812 .pl(cx.anchor_x)
8813 .child(EditorElement::new(
8814 &rename_editor,
8815 EditorStyle {
8816 background: cx.theme().system().transparent,
8817 local_player: cx.editor_style.local_player,
8818 text: text_style,
8819 scrollbar_width: cx.editor_style.scrollbar_width,
8820 syntax: cx.editor_style.syntax.clone(),
8821 status: cx.editor_style.status.clone(),
8822 inlay_hints_style: HighlightStyle {
8823 color: Some(cx.theme().status().hint),
8824 font_weight: Some(FontWeight::BOLD),
8825 ..HighlightStyle::default()
8826 },
8827 suggestions_style: HighlightStyle {
8828 color: Some(cx.theme().status().predictive),
8829 ..HighlightStyle::default()
8830 },
8831 },
8832 ))
8833 .into_any_element()
8834 }
8835 }),
8836 disposition: BlockDisposition::Below,
8837 }],
8838 Some(Autoscroll::fit()),
8839 cx,
8840 )[0];
8841 this.pending_rename = Some(RenameState {
8842 range,
8843 old_name,
8844 editor: rename_editor,
8845 block_id,
8846 });
8847 })?;
8848 }
8849
8850 Ok(())
8851 }))
8852 }
8853
8854 pub fn confirm_rename(
8855 &mut self,
8856 _: &ConfirmRename,
8857 cx: &mut ViewContext<Self>,
8858 ) -> Option<Task<Result<()>>> {
8859 let rename = self.take_rename(false, cx)?;
8860 let workspace = self.workspace()?;
8861 let (start_buffer, start) = self
8862 .buffer
8863 .read(cx)
8864 .text_anchor_for_position(rename.range.start, cx)?;
8865 let (end_buffer, end) = self
8866 .buffer
8867 .read(cx)
8868 .text_anchor_for_position(rename.range.end, cx)?;
8869 if start_buffer != end_buffer {
8870 return None;
8871 }
8872
8873 let buffer = start_buffer;
8874 let range = start..end;
8875 let old_name = rename.old_name;
8876 let new_name = rename.editor.read(cx).text(cx);
8877
8878 let rename = workspace
8879 .read(cx)
8880 .project()
8881 .clone()
8882 .update(cx, |project, cx| {
8883 project.perform_rename(buffer.clone(), range.start, new_name.clone(), true, cx)
8884 });
8885 let workspace = workspace.downgrade();
8886
8887 Some(cx.spawn(|editor, mut cx| async move {
8888 let project_transaction = rename.await?;
8889 Self::open_project_transaction(
8890 &editor,
8891 workspace,
8892 project_transaction,
8893 format!("Rename: {} → {}", old_name, new_name),
8894 cx.clone(),
8895 )
8896 .await?;
8897
8898 editor.update(&mut cx, |editor, cx| {
8899 editor.refresh_document_highlights(cx);
8900 })?;
8901 Ok(())
8902 }))
8903 }
8904
8905 fn take_rename(
8906 &mut self,
8907 moving_cursor: bool,
8908 cx: &mut ViewContext<Self>,
8909 ) -> Option<RenameState> {
8910 let rename = self.pending_rename.take()?;
8911 if rename.editor.focus_handle(cx).is_focused(cx) {
8912 cx.focus(&self.focus_handle);
8913 }
8914
8915 self.remove_blocks(
8916 [rename.block_id].into_iter().collect(),
8917 Some(Autoscroll::fit()),
8918 cx,
8919 );
8920 self.clear_highlights::<Rename>(cx);
8921 self.show_local_selections = true;
8922
8923 if moving_cursor {
8924 let rename_editor = rename.editor.read(cx);
8925 let cursor_in_rename_editor = rename_editor.selections.newest::<usize>(cx).head();
8926
8927 // Update the selection to match the position of the selection inside
8928 // the rename editor.
8929 let snapshot = self.buffer.read(cx).read(cx);
8930 let rename_range = rename.range.to_offset(&snapshot);
8931 let cursor_in_editor = snapshot
8932 .clip_offset(rename_range.start + cursor_in_rename_editor, Bias::Left)
8933 .min(rename_range.end);
8934 drop(snapshot);
8935
8936 self.change_selections(None, cx, |s| {
8937 s.select_ranges(vec![cursor_in_editor..cursor_in_editor])
8938 });
8939 } else {
8940 self.refresh_document_highlights(cx);
8941 }
8942
8943 Some(rename)
8944 }
8945
8946 pub fn pending_rename(&self) -> Option<&RenameState> {
8947 self.pending_rename.as_ref()
8948 }
8949
8950 fn format(&mut self, _: &Format, cx: &mut ViewContext<Self>) -> Option<Task<Result<()>>> {
8951 let project = match &self.project {
8952 Some(project) => project.clone(),
8953 None => return None,
8954 };
8955
8956 Some(self.perform_format(project, FormatTrigger::Manual, cx))
8957 }
8958
8959 fn perform_format(
8960 &mut self,
8961 project: Model<Project>,
8962 trigger: FormatTrigger,
8963 cx: &mut ViewContext<Self>,
8964 ) -> Task<Result<()>> {
8965 let buffer = self.buffer().clone();
8966 let mut buffers = buffer.read(cx).all_buffers();
8967 if trigger == FormatTrigger::Save {
8968 buffers.retain(|buffer| buffer.read(cx).is_dirty());
8969 }
8970
8971 let mut timeout = cx.background_executor().timer(FORMAT_TIMEOUT).fuse();
8972 let format = project.update(cx, |project, cx| project.format(buffers, true, trigger, cx));
8973
8974 cx.spawn(|_, mut cx| async move {
8975 let transaction = futures::select_biased! {
8976 () = timeout => {
8977 log::warn!("timed out waiting for formatting");
8978 None
8979 }
8980 transaction = format.log_err().fuse() => transaction,
8981 };
8982
8983 buffer
8984 .update(&mut cx, |buffer, cx| {
8985 if let Some(transaction) = transaction {
8986 if !buffer.is_singleton() {
8987 buffer.push_transaction(&transaction.0, cx);
8988 }
8989 }
8990
8991 cx.notify();
8992 })
8993 .ok();
8994
8995 Ok(())
8996 })
8997 }
8998
8999 fn restart_language_server(&mut self, _: &RestartLanguageServer, cx: &mut ViewContext<Self>) {
9000 if let Some(project) = self.project.clone() {
9001 self.buffer.update(cx, |multi_buffer, cx| {
9002 project.update(cx, |project, cx| {
9003 project.restart_language_servers_for_buffers(multi_buffer.all_buffers(), cx);
9004 });
9005 })
9006 }
9007 }
9008
9009 fn show_character_palette(&mut self, _: &ShowCharacterPalette, cx: &mut ViewContext<Self>) {
9010 cx.show_character_palette();
9011 }
9012
9013 fn refresh_active_diagnostics(&mut self, cx: &mut ViewContext<Editor>) {
9014 if let Some(active_diagnostics) = self.active_diagnostics.as_mut() {
9015 let buffer = self.buffer.read(cx).snapshot(cx);
9016 let primary_range_start = active_diagnostics.primary_range.start.to_offset(&buffer);
9017 let is_valid = buffer
9018 .diagnostics_in_range::<_, usize>(active_diagnostics.primary_range.clone(), false)
9019 .any(|entry| {
9020 entry.diagnostic.is_primary
9021 && !entry.range.is_empty()
9022 && entry.range.start == primary_range_start
9023 && entry.diagnostic.message == active_diagnostics.primary_message
9024 });
9025
9026 if is_valid != active_diagnostics.is_valid {
9027 active_diagnostics.is_valid = is_valid;
9028 let mut new_styles = HashMap::default();
9029 for (block_id, diagnostic) in &active_diagnostics.blocks {
9030 new_styles.insert(
9031 *block_id,
9032 diagnostic_block_renderer(diagnostic.clone(), is_valid),
9033 );
9034 }
9035 self.display_map
9036 .update(cx, |display_map, _| display_map.replace_blocks(new_styles));
9037 }
9038 }
9039 }
9040
9041 fn activate_diagnostics(&mut self, group_id: usize, cx: &mut ViewContext<Self>) -> bool {
9042 self.dismiss_diagnostics(cx);
9043 let snapshot = self.snapshot(cx);
9044 self.active_diagnostics = self.display_map.update(cx, |display_map, cx| {
9045 let buffer = self.buffer.read(cx).snapshot(cx);
9046
9047 let mut primary_range = None;
9048 let mut primary_message = None;
9049 let mut group_end = Point::zero();
9050 let diagnostic_group = buffer
9051 .diagnostic_group::<MultiBufferPoint>(group_id)
9052 .filter_map(|entry| {
9053 if snapshot.is_line_folded(MultiBufferRow(entry.range.start.row))
9054 && (entry.range.start.row == entry.range.end.row
9055 || snapshot.is_line_folded(MultiBufferRow(entry.range.end.row)))
9056 {
9057 return None;
9058 }
9059 if entry.range.end > group_end {
9060 group_end = entry.range.end;
9061 }
9062 if entry.diagnostic.is_primary {
9063 primary_range = Some(entry.range.clone());
9064 primary_message = Some(entry.diagnostic.message.clone());
9065 }
9066 Some(entry)
9067 })
9068 .collect::<Vec<_>>();
9069 let primary_range = primary_range?;
9070 let primary_message = primary_message?;
9071 let primary_range =
9072 buffer.anchor_after(primary_range.start)..buffer.anchor_before(primary_range.end);
9073
9074 let blocks = display_map
9075 .insert_blocks(
9076 diagnostic_group.iter().map(|entry| {
9077 let diagnostic = entry.diagnostic.clone();
9078 let message_height = diagnostic.message.matches('\n').count() as u8 + 1;
9079 BlockProperties {
9080 style: BlockStyle::Fixed,
9081 position: buffer.anchor_after(entry.range.start),
9082 height: message_height,
9083 render: diagnostic_block_renderer(diagnostic, true),
9084 disposition: BlockDisposition::Below,
9085 }
9086 }),
9087 cx,
9088 )
9089 .into_iter()
9090 .zip(diagnostic_group.into_iter().map(|entry| entry.diagnostic))
9091 .collect();
9092
9093 Some(ActiveDiagnosticGroup {
9094 primary_range,
9095 primary_message,
9096 group_id,
9097 blocks,
9098 is_valid: true,
9099 })
9100 });
9101 self.active_diagnostics.is_some()
9102 }
9103
9104 fn dismiss_diagnostics(&mut self, cx: &mut ViewContext<Self>) {
9105 if let Some(active_diagnostic_group) = self.active_diagnostics.take() {
9106 self.display_map.update(cx, |display_map, cx| {
9107 display_map.remove_blocks(active_diagnostic_group.blocks.into_keys().collect(), cx);
9108 });
9109 cx.notify();
9110 }
9111 }
9112
9113 pub fn set_selections_from_remote(
9114 &mut self,
9115 selections: Vec<Selection<Anchor>>,
9116 pending_selection: Option<Selection<Anchor>>,
9117 cx: &mut ViewContext<Self>,
9118 ) {
9119 let old_cursor_position = self.selections.newest_anchor().head();
9120 self.selections.change_with(cx, |s| {
9121 s.select_anchors(selections);
9122 if let Some(pending_selection) = pending_selection {
9123 s.set_pending(pending_selection, SelectMode::Character);
9124 } else {
9125 s.clear_pending();
9126 }
9127 });
9128 self.selections_did_change(false, &old_cursor_position, cx);
9129 }
9130
9131 fn push_to_selection_history(&mut self) {
9132 self.selection_history.push(SelectionHistoryEntry {
9133 selections: self.selections.disjoint_anchors(),
9134 select_next_state: self.select_next_state.clone(),
9135 select_prev_state: self.select_prev_state.clone(),
9136 add_selections_state: self.add_selections_state.clone(),
9137 });
9138 }
9139
9140 pub fn transact(
9141 &mut self,
9142 cx: &mut ViewContext<Self>,
9143 update: impl FnOnce(&mut Self, &mut ViewContext<Self>),
9144 ) -> Option<TransactionId> {
9145 self.start_transaction_at(Instant::now(), cx);
9146 update(self, cx);
9147 self.end_transaction_at(Instant::now(), cx)
9148 }
9149
9150 fn start_transaction_at(&mut self, now: Instant, cx: &mut ViewContext<Self>) {
9151 self.end_selection(cx);
9152 if let Some(tx_id) = self
9153 .buffer
9154 .update(cx, |buffer, cx| buffer.start_transaction_at(now, cx))
9155 {
9156 self.selection_history
9157 .insert_transaction(tx_id, self.selections.disjoint_anchors());
9158 cx.emit(EditorEvent::TransactionBegun {
9159 transaction_id: tx_id,
9160 })
9161 }
9162 }
9163
9164 fn end_transaction_at(
9165 &mut self,
9166 now: Instant,
9167 cx: &mut ViewContext<Self>,
9168 ) -> Option<TransactionId> {
9169 if let Some(tx_id) = self
9170 .buffer
9171 .update(cx, |buffer, cx| buffer.end_transaction_at(now, cx))
9172 {
9173 if let Some((_, end_selections)) = self.selection_history.transaction_mut(tx_id) {
9174 *end_selections = Some(self.selections.disjoint_anchors());
9175 } else {
9176 log::error!("unexpectedly ended a transaction that wasn't started by this editor");
9177 }
9178
9179 cx.emit(EditorEvent::Edited);
9180 Some(tx_id)
9181 } else {
9182 None
9183 }
9184 }
9185
9186 pub fn fold(&mut self, _: &actions::Fold, cx: &mut ViewContext<Self>) {
9187 let mut fold_ranges = Vec::new();
9188
9189 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
9190
9191 let selections = self.selections.all_adjusted(cx);
9192 for selection in selections {
9193 let range = selection.range().sorted();
9194 let buffer_start_row = range.start.row;
9195
9196 for row in (0..=range.end.row).rev() {
9197 let fold_range = display_map.foldable_range(MultiBufferRow(row));
9198
9199 if let Some(fold_range) = fold_range {
9200 if fold_range.end.row >= buffer_start_row {
9201 fold_ranges.push(fold_range);
9202 if row <= range.start.row {
9203 break;
9204 }
9205 }
9206 }
9207 }
9208 }
9209
9210 self.fold_ranges(fold_ranges, true, cx);
9211 }
9212
9213 pub fn fold_at(&mut self, fold_at: &FoldAt, cx: &mut ViewContext<Self>) {
9214 let buffer_row = fold_at.buffer_row;
9215 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
9216
9217 if let Some(fold_range) = display_map.foldable_range(buffer_row) {
9218 let autoscroll = self
9219 .selections
9220 .all::<Point>(cx)
9221 .iter()
9222 .any(|selection| fold_range.overlaps(&selection.range()));
9223
9224 self.fold_ranges(std::iter::once(fold_range), autoscroll, cx);
9225 }
9226 }
9227
9228 pub fn unfold_lines(&mut self, _: &UnfoldLines, cx: &mut ViewContext<Self>) {
9229 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
9230 let buffer = &display_map.buffer_snapshot;
9231 let selections = self.selections.all::<Point>(cx);
9232 let ranges = selections
9233 .iter()
9234 .map(|s| {
9235 let range = s.display_range(&display_map).sorted();
9236 let mut start = range.start.to_point(&display_map);
9237 let mut end = range.end.to_point(&display_map);
9238 start.column = 0;
9239 end.column = buffer.line_len(MultiBufferRow(end.row));
9240 start..end
9241 })
9242 .collect::<Vec<_>>();
9243
9244 self.unfold_ranges(ranges, true, true, cx);
9245 }
9246
9247 pub fn unfold_at(&mut self, unfold_at: &UnfoldAt, cx: &mut ViewContext<Self>) {
9248 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
9249
9250 let intersection_range = Point::new(unfold_at.buffer_row.0, 0)
9251 ..Point::new(
9252 unfold_at.buffer_row.0,
9253 display_map.buffer_snapshot.line_len(unfold_at.buffer_row),
9254 );
9255
9256 let autoscroll = self
9257 .selections
9258 .all::<Point>(cx)
9259 .iter()
9260 .any(|selection| selection.range().overlaps(&intersection_range));
9261
9262 self.unfold_ranges(std::iter::once(intersection_range), true, autoscroll, cx)
9263 }
9264
9265 pub fn fold_selected_ranges(&mut self, _: &FoldSelectedRanges, cx: &mut ViewContext<Self>) {
9266 let selections = self.selections.all::<Point>(cx);
9267 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
9268 let line_mode = self.selections.line_mode;
9269 let ranges = selections.into_iter().map(|s| {
9270 if line_mode {
9271 let start = Point::new(s.start.row, 0);
9272 let end = Point::new(
9273 s.end.row,
9274 display_map
9275 .buffer_snapshot
9276 .line_len(MultiBufferRow(s.end.row)),
9277 );
9278 start..end
9279 } else {
9280 s.start..s.end
9281 }
9282 });
9283 self.fold_ranges(ranges, true, cx);
9284 }
9285
9286 pub fn fold_ranges<T: ToOffset + Clone>(
9287 &mut self,
9288 ranges: impl IntoIterator<Item = Range<T>>,
9289 auto_scroll: bool,
9290 cx: &mut ViewContext<Self>,
9291 ) {
9292 let mut fold_ranges = Vec::new();
9293 let mut buffers_affected = HashMap::default();
9294 let multi_buffer = self.buffer().read(cx);
9295 for range in ranges {
9296 if let Some((_, buffer, _)) = multi_buffer.excerpt_containing(range.start.clone(), cx) {
9297 buffers_affected.insert(buffer.read(cx).remote_id(), buffer);
9298 };
9299 fold_ranges.push(range);
9300 }
9301
9302 let mut ranges = fold_ranges.into_iter().peekable();
9303 if ranges.peek().is_some() {
9304 self.display_map.update(cx, |map, cx| map.fold(ranges, cx));
9305
9306 if auto_scroll {
9307 self.request_autoscroll(Autoscroll::fit(), cx);
9308 }
9309
9310 for buffer in buffers_affected.into_values() {
9311 self.sync_expanded_diff_hunks(buffer, cx);
9312 }
9313
9314 cx.notify();
9315
9316 if let Some(active_diagnostics) = self.active_diagnostics.take() {
9317 // Clear diagnostics block when folding a range that contains it.
9318 let snapshot = self.snapshot(cx);
9319 if snapshot.intersects_fold(active_diagnostics.primary_range.start) {
9320 drop(snapshot);
9321 self.active_diagnostics = Some(active_diagnostics);
9322 self.dismiss_diagnostics(cx);
9323 } else {
9324 self.active_diagnostics = Some(active_diagnostics);
9325 }
9326 }
9327
9328 self.scrollbar_marker_state.dirty = true;
9329 }
9330 }
9331
9332 pub fn unfold_ranges<T: ToOffset + Clone>(
9333 &mut self,
9334 ranges: impl IntoIterator<Item = Range<T>>,
9335 inclusive: bool,
9336 auto_scroll: bool,
9337 cx: &mut ViewContext<Self>,
9338 ) {
9339 let mut unfold_ranges = Vec::new();
9340 let mut buffers_affected = HashMap::default();
9341 let multi_buffer = self.buffer().read(cx);
9342 for range in ranges {
9343 if let Some((_, buffer, _)) = multi_buffer.excerpt_containing(range.start.clone(), cx) {
9344 buffers_affected.insert(buffer.read(cx).remote_id(), buffer);
9345 };
9346 unfold_ranges.push(range);
9347 }
9348
9349 let mut ranges = unfold_ranges.into_iter().peekable();
9350 if ranges.peek().is_some() {
9351 self.display_map
9352 .update(cx, |map, cx| map.unfold(ranges, inclusive, cx));
9353 if auto_scroll {
9354 self.request_autoscroll(Autoscroll::fit(), cx);
9355 }
9356
9357 for buffer in buffers_affected.into_values() {
9358 self.sync_expanded_diff_hunks(buffer, cx);
9359 }
9360
9361 cx.notify();
9362 self.scrollbar_marker_state.dirty = true;
9363 }
9364 }
9365
9366 pub fn set_gutter_hovered(&mut self, hovered: bool, cx: &mut ViewContext<Self>) {
9367 if hovered != self.gutter_hovered {
9368 self.gutter_hovered = hovered;
9369 cx.notify();
9370 }
9371 }
9372
9373 pub fn insert_blocks(
9374 &mut self,
9375 blocks: impl IntoIterator<Item = BlockProperties<Anchor>>,
9376 autoscroll: Option<Autoscroll>,
9377 cx: &mut ViewContext<Self>,
9378 ) -> Vec<BlockId> {
9379 let blocks = self
9380 .display_map
9381 .update(cx, |display_map, cx| display_map.insert_blocks(blocks, cx));
9382 if let Some(autoscroll) = autoscroll {
9383 self.request_autoscroll(autoscroll, cx);
9384 }
9385 blocks
9386 }
9387
9388 pub fn replace_blocks(
9389 &mut self,
9390 blocks: HashMap<BlockId, RenderBlock>,
9391 autoscroll: Option<Autoscroll>,
9392 cx: &mut ViewContext<Self>,
9393 ) {
9394 self.display_map
9395 .update(cx, |display_map, _| display_map.replace_blocks(blocks));
9396 if let Some(autoscroll) = autoscroll {
9397 self.request_autoscroll(autoscroll, cx);
9398 }
9399 }
9400
9401 pub fn remove_blocks(
9402 &mut self,
9403 block_ids: HashSet<BlockId>,
9404 autoscroll: Option<Autoscroll>,
9405 cx: &mut ViewContext<Self>,
9406 ) {
9407 self.display_map.update(cx, |display_map, cx| {
9408 display_map.remove_blocks(block_ids, cx)
9409 });
9410 if let Some(autoscroll) = autoscroll {
9411 self.request_autoscroll(autoscroll, cx);
9412 }
9413 }
9414
9415 pub fn longest_row(&self, cx: &mut AppContext) -> DisplayRow {
9416 self.display_map
9417 .update(cx, |map, cx| map.snapshot(cx))
9418 .longest_row()
9419 }
9420
9421 pub fn max_point(&self, cx: &mut AppContext) -> DisplayPoint {
9422 self.display_map
9423 .update(cx, |map, cx| map.snapshot(cx))
9424 .max_point()
9425 }
9426
9427 pub fn text(&self, cx: &AppContext) -> String {
9428 self.buffer.read(cx).read(cx).text()
9429 }
9430
9431 pub fn text_option(&self, cx: &AppContext) -> Option<String> {
9432 let text = self.text(cx);
9433 let text = text.trim();
9434
9435 if text.is_empty() {
9436 return None;
9437 }
9438
9439 Some(text.to_string())
9440 }
9441
9442 pub fn set_text(&mut self, text: impl Into<Arc<str>>, cx: &mut ViewContext<Self>) {
9443 self.transact(cx, |this, cx| {
9444 this.buffer
9445 .read(cx)
9446 .as_singleton()
9447 .expect("you can only call set_text on editors for singleton buffers")
9448 .update(cx, |buffer, cx| buffer.set_text(text, cx));
9449 });
9450 }
9451
9452 pub fn display_text(&self, cx: &mut AppContext) -> String {
9453 self.display_map
9454 .update(cx, |map, cx| map.snapshot(cx))
9455 .text()
9456 }
9457
9458 pub fn wrap_guides(&self, cx: &AppContext) -> SmallVec<[(usize, bool); 2]> {
9459 let mut wrap_guides = smallvec::smallvec![];
9460
9461 if self.show_wrap_guides == Some(false) {
9462 return wrap_guides;
9463 }
9464
9465 let settings = self.buffer.read(cx).settings_at(0, cx);
9466 if settings.show_wrap_guides {
9467 if let SoftWrap::Column(soft_wrap) = self.soft_wrap_mode(cx) {
9468 wrap_guides.push((soft_wrap as usize, true));
9469 }
9470 wrap_guides.extend(settings.wrap_guides.iter().map(|guide| (*guide, false)))
9471 }
9472
9473 wrap_guides
9474 }
9475
9476 pub fn soft_wrap_mode(&self, cx: &AppContext) -> SoftWrap {
9477 let settings = self.buffer.read(cx).settings_at(0, cx);
9478 let mode = self
9479 .soft_wrap_mode_override
9480 .unwrap_or_else(|| settings.soft_wrap);
9481 match mode {
9482 language_settings::SoftWrap::None => SoftWrap::None,
9483 language_settings::SoftWrap::PreferLine => SoftWrap::PreferLine,
9484 language_settings::SoftWrap::EditorWidth => SoftWrap::EditorWidth,
9485 language_settings::SoftWrap::PreferredLineLength => {
9486 SoftWrap::Column(settings.preferred_line_length)
9487 }
9488 }
9489 }
9490
9491 pub fn set_soft_wrap_mode(
9492 &mut self,
9493 mode: language_settings::SoftWrap,
9494 cx: &mut ViewContext<Self>,
9495 ) {
9496 self.soft_wrap_mode_override = Some(mode);
9497 cx.notify();
9498 }
9499
9500 pub fn set_style(&mut self, style: EditorStyle, cx: &mut ViewContext<Self>) {
9501 let rem_size = cx.rem_size();
9502 self.display_map.update(cx, |map, cx| {
9503 map.set_font(
9504 style.text.font(),
9505 style.text.font_size.to_pixels(rem_size),
9506 cx,
9507 )
9508 });
9509 self.style = Some(style);
9510 }
9511
9512 pub fn style(&self) -> Option<&EditorStyle> {
9513 self.style.as_ref()
9514 }
9515
9516 // Called by the element. This method is not designed to be called outside of the editor
9517 // element's layout code because it does not notify when rewrapping is computed synchronously.
9518 pub(crate) fn set_wrap_width(&self, width: Option<Pixels>, cx: &mut AppContext) -> bool {
9519 self.display_map
9520 .update(cx, |map, cx| map.set_wrap_width(width, cx))
9521 }
9522
9523 pub fn toggle_soft_wrap(&mut self, _: &ToggleSoftWrap, cx: &mut ViewContext<Self>) {
9524 if self.soft_wrap_mode_override.is_some() {
9525 self.soft_wrap_mode_override.take();
9526 } else {
9527 let soft_wrap = match self.soft_wrap_mode(cx) {
9528 SoftWrap::None | SoftWrap::PreferLine => language_settings::SoftWrap::EditorWidth,
9529 SoftWrap::EditorWidth | SoftWrap::Column(_) => {
9530 language_settings::SoftWrap::PreferLine
9531 }
9532 };
9533 self.soft_wrap_mode_override = Some(soft_wrap);
9534 }
9535 cx.notify();
9536 }
9537
9538 pub fn toggle_line_numbers(&mut self, _: &ToggleLineNumbers, cx: &mut ViewContext<Self>) {
9539 let mut editor_settings = EditorSettings::get_global(cx).clone();
9540 editor_settings.gutter.line_numbers = !editor_settings.gutter.line_numbers;
9541 EditorSettings::override_global(editor_settings, cx);
9542 }
9543
9544 pub fn set_show_gutter(&mut self, show_gutter: bool, cx: &mut ViewContext<Self>) {
9545 self.show_gutter = show_gutter;
9546 cx.notify();
9547 }
9548
9549 pub fn set_show_wrap_guides(&mut self, show_gutter: bool, cx: &mut ViewContext<Self>) {
9550 self.show_wrap_guides = Some(show_gutter);
9551 cx.notify();
9552 }
9553
9554 pub fn reveal_in_finder(&mut self, _: &RevealInFinder, cx: &mut ViewContext<Self>) {
9555 if let Some(buffer) = self.buffer().read(cx).as_singleton() {
9556 if let Some(file) = buffer.read(cx).file().and_then(|f| f.as_local()) {
9557 cx.reveal_path(&file.abs_path(cx));
9558 }
9559 }
9560 }
9561
9562 pub fn copy_path(&mut self, _: &CopyPath, cx: &mut ViewContext<Self>) {
9563 if let Some(buffer) = self.buffer().read(cx).as_singleton() {
9564 if let Some(file) = buffer.read(cx).file().and_then(|f| f.as_local()) {
9565 if let Some(path) = file.abs_path(cx).to_str() {
9566 cx.write_to_clipboard(ClipboardItem::new(path.to_string()));
9567 }
9568 }
9569 }
9570 }
9571
9572 pub fn copy_relative_path(&mut self, _: &CopyRelativePath, cx: &mut ViewContext<Self>) {
9573 if let Some(buffer) = self.buffer().read(cx).as_singleton() {
9574 if let Some(file) = buffer.read(cx).file().and_then(|f| f.as_local()) {
9575 if let Some(path) = file.path().to_str() {
9576 cx.write_to_clipboard(ClipboardItem::new(path.to_string()));
9577 }
9578 }
9579 }
9580 }
9581
9582 pub fn toggle_git_blame(&mut self, _: &ToggleGitBlame, cx: &mut ViewContext<Self>) {
9583 self.show_git_blame_gutter = !self.show_git_blame_gutter;
9584
9585 if self.show_git_blame_gutter && !self.has_blame_entries(cx) {
9586 self.start_git_blame(true, cx);
9587 }
9588
9589 cx.notify();
9590 }
9591
9592 pub fn toggle_git_blame_inline(
9593 &mut self,
9594 _: &ToggleGitBlameInline,
9595 cx: &mut ViewContext<Self>,
9596 ) {
9597 self.toggle_git_blame_inline_internal(true, cx);
9598 cx.notify();
9599 }
9600
9601 pub fn git_blame_inline_enabled(&self) -> bool {
9602 self.git_blame_inline_enabled
9603 }
9604
9605 fn start_git_blame(&mut self, user_triggered: bool, cx: &mut ViewContext<Self>) {
9606 if let Some(project) = self.project.as_ref() {
9607 let Some(buffer) = self.buffer().read(cx).as_singleton() else {
9608 return;
9609 };
9610
9611 if buffer.read(cx).file().is_none() {
9612 return;
9613 }
9614
9615 let focused = self.focus_handle(cx).contains_focused(cx);
9616
9617 let project = project.clone();
9618 let blame =
9619 cx.new_model(|cx| GitBlame::new(buffer, project, user_triggered, focused, cx));
9620 self.blame_subscription = Some(cx.observe(&blame, |_, _, cx| cx.notify()));
9621 self.blame = Some(blame);
9622 }
9623 }
9624
9625 fn toggle_git_blame_inline_internal(
9626 &mut self,
9627 user_triggered: bool,
9628 cx: &mut ViewContext<Self>,
9629 ) {
9630 if self.git_blame_inline_enabled {
9631 self.git_blame_inline_enabled = false;
9632 self.show_git_blame_inline = false;
9633 self.show_git_blame_inline_delay_task.take();
9634 } else {
9635 self.git_blame_inline_enabled = true;
9636 self.start_git_blame_inline(user_triggered, cx);
9637 }
9638
9639 cx.notify();
9640 }
9641
9642 fn start_git_blame_inline(&mut self, user_triggered: bool, cx: &mut ViewContext<Self>) {
9643 self.start_git_blame(user_triggered, cx);
9644
9645 if ProjectSettings::get_global(cx)
9646 .git
9647 .inline_blame_delay()
9648 .is_some()
9649 {
9650 self.start_inline_blame_timer(cx);
9651 } else {
9652 self.show_git_blame_inline = true
9653 }
9654 }
9655
9656 pub fn blame(&self) -> Option<&Model<GitBlame>> {
9657 self.blame.as_ref()
9658 }
9659
9660 pub fn render_git_blame_gutter(&mut self, cx: &mut WindowContext) -> bool {
9661 self.show_git_blame_gutter && self.has_blame_entries(cx)
9662 }
9663
9664 pub fn render_git_blame_inline(&mut self, cx: &mut WindowContext) -> bool {
9665 self.show_git_blame_inline
9666 && self.focus_handle.is_focused(cx)
9667 && !self.newest_selection_head_on_empty_line(cx)
9668 && self.has_blame_entries(cx)
9669 }
9670
9671 fn has_blame_entries(&self, cx: &mut WindowContext) -> bool {
9672 self.blame()
9673 .map_or(false, |blame| blame.read(cx).has_generated_entries())
9674 }
9675
9676 fn newest_selection_head_on_empty_line(&mut self, cx: &mut WindowContext) -> bool {
9677 let cursor_anchor = self.selections.newest_anchor().head();
9678
9679 let snapshot = self.buffer.read(cx).snapshot(cx);
9680 let buffer_row = MultiBufferRow(cursor_anchor.to_point(&snapshot).row);
9681
9682 snapshot.line_len(buffer_row) == 0
9683 }
9684
9685 fn get_permalink_to_line(&mut self, cx: &mut ViewContext<Self>) -> Result<url::Url> {
9686 let (path, repo) = maybe!({
9687 let project_handle = self.project.as_ref()?.clone();
9688 let project = project_handle.read(cx);
9689 let buffer = self.buffer().read(cx).as_singleton()?;
9690 let path = buffer
9691 .read(cx)
9692 .file()?
9693 .as_local()?
9694 .path()
9695 .to_str()?
9696 .to_string();
9697 let repo = project.get_repo(&buffer.read(cx).project_path(cx)?, cx)?;
9698 Some((path, repo))
9699 })
9700 .ok_or_else(|| anyhow!("unable to open git repository"))?;
9701
9702 const REMOTE_NAME: &str = "origin";
9703 let origin_url = repo
9704 .lock()
9705 .remote_url(REMOTE_NAME)
9706 .ok_or_else(|| anyhow!("remote \"{REMOTE_NAME}\" not found"))?;
9707 let sha = repo
9708 .lock()
9709 .head_sha()
9710 .ok_or_else(|| anyhow!("failed to read HEAD SHA"))?;
9711 let selections = self.selections.all::<Point>(cx);
9712 let selection = selections.iter().peekable().next();
9713
9714 let (provider, remote) =
9715 parse_git_remote_url(GitHostingProviderRegistry::default_global(cx), &origin_url)
9716 .ok_or_else(|| anyhow!("failed to parse Git remote URL"))?;
9717
9718 Ok(provider.build_permalink(
9719 remote,
9720 BuildPermalinkParams {
9721 sha: &sha,
9722 path: &path,
9723 selection: selection.map(|selection| {
9724 let range = selection.range();
9725 let start = range.start.row;
9726 let end = range.end.row;
9727 start..end
9728 }),
9729 },
9730 ))
9731 }
9732
9733 pub fn copy_permalink_to_line(&mut self, _: &CopyPermalinkToLine, cx: &mut ViewContext<Self>) {
9734 let permalink = self.get_permalink_to_line(cx);
9735
9736 match permalink {
9737 Ok(permalink) => {
9738 cx.write_to_clipboard(ClipboardItem::new(permalink.to_string()));
9739 }
9740 Err(err) => {
9741 let message = format!("Failed to copy permalink: {err}");
9742
9743 Err::<(), anyhow::Error>(err).log_err();
9744
9745 if let Some(workspace) = self.workspace() {
9746 workspace.update(cx, |workspace, cx| {
9747 struct CopyPermalinkToLine;
9748
9749 workspace.show_toast(
9750 Toast::new(NotificationId::unique::<CopyPermalinkToLine>(), message),
9751 cx,
9752 )
9753 })
9754 }
9755 }
9756 }
9757 }
9758
9759 pub fn open_permalink_to_line(&mut self, _: &OpenPermalinkToLine, cx: &mut ViewContext<Self>) {
9760 let permalink = self.get_permalink_to_line(cx);
9761
9762 match permalink {
9763 Ok(permalink) => {
9764 cx.open_url(permalink.as_ref());
9765 }
9766 Err(err) => {
9767 let message = format!("Failed to open permalink: {err}");
9768
9769 Err::<(), anyhow::Error>(err).log_err();
9770
9771 if let Some(workspace) = self.workspace() {
9772 workspace.update(cx, |workspace, cx| {
9773 struct OpenPermalinkToLine;
9774
9775 workspace.show_toast(
9776 Toast::new(NotificationId::unique::<OpenPermalinkToLine>(), message),
9777 cx,
9778 )
9779 })
9780 }
9781 }
9782 }
9783 }
9784
9785 /// Adds or removes (on `None` color) a highlight for the rows corresponding to the anchor range given.
9786 /// On matching anchor range, replaces the old highlight; does not clear the other existing highlights.
9787 /// If multiple anchor ranges will produce highlights for the same row, the last range added will be used.
9788 pub fn highlight_rows<T: 'static>(
9789 &mut self,
9790 rows: RangeInclusive<Anchor>,
9791 color: Option<Hsla>,
9792 cx: &mut ViewContext<Self>,
9793 ) {
9794 let multi_buffer_snapshot = self.buffer().read(cx).snapshot(cx);
9795 match self.highlighted_rows.entry(TypeId::of::<T>()) {
9796 hash_map::Entry::Occupied(o) => {
9797 let row_highlights = o.into_mut();
9798 let existing_highlight_index =
9799 row_highlights.binary_search_by(|(_, highlight_range, _)| {
9800 highlight_range
9801 .start()
9802 .cmp(&rows.start(), &multi_buffer_snapshot)
9803 .then(
9804 highlight_range
9805 .end()
9806 .cmp(&rows.end(), &multi_buffer_snapshot),
9807 )
9808 });
9809 match color {
9810 Some(color) => {
9811 let insert_index = match existing_highlight_index {
9812 Ok(i) => i,
9813 Err(i) => i,
9814 };
9815 row_highlights.insert(
9816 insert_index,
9817 (post_inc(&mut self.highlight_order), rows, Some(color)),
9818 );
9819 }
9820 None => match existing_highlight_index {
9821 Ok(i) => {
9822 row_highlights.remove(i);
9823 }
9824 Err(i) => {
9825 row_highlights
9826 .insert(i, (post_inc(&mut self.highlight_order), rows, None));
9827 }
9828 },
9829 }
9830 }
9831 hash_map::Entry::Vacant(v) => {
9832 v.insert(vec![(post_inc(&mut self.highlight_order), rows, color)]);
9833 }
9834 }
9835 }
9836
9837 /// Clear all anchor ranges for a certain highlight context type, so no corresponding rows will be highlighted.
9838 pub fn clear_row_highlights<T: 'static>(&mut self) {
9839 self.highlighted_rows.remove(&TypeId::of::<T>());
9840 }
9841
9842 /// For a highlight given context type, gets all anchor ranges that will be used for row highlighting.
9843 pub fn highlighted_rows<T: 'static>(
9844 &self,
9845 ) -> Option<impl Iterator<Item = (&RangeInclusive<Anchor>, Option<&Hsla>)>> {
9846 Some(
9847 self.highlighted_rows
9848 .get(&TypeId::of::<T>())?
9849 .iter()
9850 .map(|(_, range, color)| (range, color.as_ref())),
9851 )
9852 }
9853
9854 /// Merges all anchor ranges for all context types ever set, picking the last highlight added in case of a row conflict.
9855 /// Rerturns a map of display rows that are highlighted and their corresponding highlight color.
9856 /// Allows to ignore certain kinds of highlights.
9857 pub fn highlighted_display_rows(
9858 &mut self,
9859 exclude_highlights: HashSet<TypeId>,
9860 cx: &mut WindowContext,
9861 ) -> BTreeMap<DisplayRow, Hsla> {
9862 let snapshot = self.snapshot(cx);
9863 let mut used_highlight_orders = HashMap::default();
9864 self.highlighted_rows
9865 .iter()
9866 .filter(|(type_id, _)| !exclude_highlights.contains(type_id))
9867 .flat_map(|(_, highlighted_rows)| highlighted_rows.iter())
9868 .fold(
9869 BTreeMap::<DisplayRow, Hsla>::new(),
9870 |mut unique_rows, (highlight_order, anchor_range, hsla)| {
9871 let start_row = anchor_range.start().to_display_point(&snapshot).row();
9872 let end_row = anchor_range.end().to_display_point(&snapshot).row();
9873 for row in start_row.0..=end_row.0 {
9874 let used_index =
9875 used_highlight_orders.entry(row).or_insert(*highlight_order);
9876 if highlight_order >= used_index {
9877 *used_index = *highlight_order;
9878 match hsla {
9879 Some(hsla) => {
9880 unique_rows.insert(DisplayRow(row), *hsla);
9881 }
9882 None => {
9883 unique_rows.remove(&DisplayRow(row));
9884 }
9885 }
9886 }
9887 }
9888 unique_rows
9889 },
9890 )
9891 }
9892
9893 pub fn set_search_within_ranges(
9894 &mut self,
9895 ranges: &[Range<Anchor>],
9896 cx: &mut ViewContext<Self>,
9897 ) {
9898 self.highlight_background::<SearchWithinRange>(
9899 ranges,
9900 |colors| colors.editor_document_highlight_read_background,
9901 cx,
9902 )
9903 }
9904
9905 pub fn highlight_background<T: 'static>(
9906 &mut self,
9907 ranges: &[Range<Anchor>],
9908 color_fetcher: fn(&ThemeColors) -> Hsla,
9909 cx: &mut ViewContext<Self>,
9910 ) {
9911 let snapshot = self.snapshot(cx);
9912 // this is to try and catch a panic sooner
9913 for range in ranges {
9914 snapshot
9915 .buffer_snapshot
9916 .summary_for_anchor::<usize>(&range.start);
9917 snapshot
9918 .buffer_snapshot
9919 .summary_for_anchor::<usize>(&range.end);
9920 }
9921
9922 self.background_highlights
9923 .insert(TypeId::of::<T>(), (color_fetcher, Arc::from(ranges)));
9924 self.scrollbar_marker_state.dirty = true;
9925 cx.notify();
9926 }
9927
9928 pub fn clear_background_highlights<T: 'static>(
9929 &mut self,
9930 cx: &mut ViewContext<Self>,
9931 ) -> Option<BackgroundHighlight> {
9932 let text_highlights = self.background_highlights.remove(&TypeId::of::<T>())?;
9933 if !text_highlights.1.is_empty() {
9934 self.scrollbar_marker_state.dirty = true;
9935 cx.notify();
9936 }
9937 Some(text_highlights)
9938 }
9939
9940 #[cfg(feature = "test-support")]
9941 pub fn all_text_background_highlights(
9942 &mut self,
9943 cx: &mut ViewContext<Self>,
9944 ) -> Vec<(Range<DisplayPoint>, Hsla)> {
9945 let snapshot = self.snapshot(cx);
9946 let buffer = &snapshot.buffer_snapshot;
9947 let start = buffer.anchor_before(0);
9948 let end = buffer.anchor_after(buffer.len());
9949 let theme = cx.theme().colors();
9950 self.background_highlights_in_range(start..end, &snapshot, theme)
9951 }
9952
9953 fn document_highlights_for_position<'a>(
9954 &'a self,
9955 position: Anchor,
9956 buffer: &'a MultiBufferSnapshot,
9957 ) -> impl 'a + Iterator<Item = &Range<Anchor>> {
9958 let read_highlights = self
9959 .background_highlights
9960 .get(&TypeId::of::<DocumentHighlightRead>())
9961 .map(|h| &h.1);
9962 let write_highlights = self
9963 .background_highlights
9964 .get(&TypeId::of::<DocumentHighlightWrite>())
9965 .map(|h| &h.1);
9966 let left_position = position.bias_left(buffer);
9967 let right_position = position.bias_right(buffer);
9968 read_highlights
9969 .into_iter()
9970 .chain(write_highlights)
9971 .flat_map(move |ranges| {
9972 let start_ix = match ranges.binary_search_by(|probe| {
9973 let cmp = probe.end.cmp(&left_position, buffer);
9974 if cmp.is_ge() {
9975 Ordering::Greater
9976 } else {
9977 Ordering::Less
9978 }
9979 }) {
9980 Ok(i) | Err(i) => i,
9981 };
9982
9983 ranges[start_ix..]
9984 .iter()
9985 .take_while(move |range| range.start.cmp(&right_position, buffer).is_le())
9986 })
9987 }
9988
9989 pub fn has_background_highlights<T: 'static>(&self) -> bool {
9990 self.background_highlights
9991 .get(&TypeId::of::<T>())
9992 .map_or(false, |(_, highlights)| !highlights.is_empty())
9993 }
9994
9995 pub fn background_highlights_in_range(
9996 &self,
9997 search_range: Range<Anchor>,
9998 display_snapshot: &DisplaySnapshot,
9999 theme: &ThemeColors,
10000 ) -> Vec<(Range<DisplayPoint>, Hsla)> {
10001 let mut results = Vec::new();
10002 for (color_fetcher, ranges) in self.background_highlights.values() {
10003 let color = color_fetcher(theme);
10004 let start_ix = match ranges.binary_search_by(|probe| {
10005 let cmp = probe
10006 .end
10007 .cmp(&search_range.start, &display_snapshot.buffer_snapshot);
10008 if cmp.is_gt() {
10009 Ordering::Greater
10010 } else {
10011 Ordering::Less
10012 }
10013 }) {
10014 Ok(i) | Err(i) => i,
10015 };
10016 for range in &ranges[start_ix..] {
10017 if range
10018 .start
10019 .cmp(&search_range.end, &display_snapshot.buffer_snapshot)
10020 .is_ge()
10021 {
10022 break;
10023 }
10024
10025 let start = range.start.to_display_point(&display_snapshot);
10026 let end = range.end.to_display_point(&display_snapshot);
10027 results.push((start..end, color))
10028 }
10029 }
10030 results
10031 }
10032
10033 pub fn background_highlight_row_ranges<T: 'static>(
10034 &self,
10035 search_range: Range<Anchor>,
10036 display_snapshot: &DisplaySnapshot,
10037 count: usize,
10038 ) -> Vec<RangeInclusive<DisplayPoint>> {
10039 let mut results = Vec::new();
10040 let Some((_, ranges)) = self.background_highlights.get(&TypeId::of::<T>()) else {
10041 return vec![];
10042 };
10043
10044 let start_ix = match ranges.binary_search_by(|probe| {
10045 let cmp = probe
10046 .end
10047 .cmp(&search_range.start, &display_snapshot.buffer_snapshot);
10048 if cmp.is_gt() {
10049 Ordering::Greater
10050 } else {
10051 Ordering::Less
10052 }
10053 }) {
10054 Ok(i) | Err(i) => i,
10055 };
10056 let mut push_region = |start: Option<Point>, end: Option<Point>| {
10057 if let (Some(start_display), Some(end_display)) = (start, end) {
10058 results.push(
10059 start_display.to_display_point(display_snapshot)
10060 ..=end_display.to_display_point(display_snapshot),
10061 );
10062 }
10063 };
10064 let mut start_row: Option<Point> = None;
10065 let mut end_row: Option<Point> = None;
10066 if ranges.len() > count {
10067 return Vec::new();
10068 }
10069 for range in &ranges[start_ix..] {
10070 if range
10071 .start
10072 .cmp(&search_range.end, &display_snapshot.buffer_snapshot)
10073 .is_ge()
10074 {
10075 break;
10076 }
10077 let end = range.end.to_point(&display_snapshot.buffer_snapshot);
10078 if let Some(current_row) = &end_row {
10079 if end.row == current_row.row {
10080 continue;
10081 }
10082 }
10083 let start = range.start.to_point(&display_snapshot.buffer_snapshot);
10084 if start_row.is_none() {
10085 assert_eq!(end_row, None);
10086 start_row = Some(start);
10087 end_row = Some(end);
10088 continue;
10089 }
10090 if let Some(current_end) = end_row.as_mut() {
10091 if start.row > current_end.row + 1 {
10092 push_region(start_row, end_row);
10093 start_row = Some(start);
10094 end_row = Some(end);
10095 } else {
10096 // Merge two hunks.
10097 *current_end = end;
10098 }
10099 } else {
10100 unreachable!();
10101 }
10102 }
10103 // We might still have a hunk that was not rendered (if there was a search hit on the last line)
10104 push_region(start_row, end_row);
10105 results
10106 }
10107
10108 /// Get the text ranges corresponding to the redaction query
10109 pub fn redacted_ranges(
10110 &self,
10111 search_range: Range<Anchor>,
10112 display_snapshot: &DisplaySnapshot,
10113 cx: &WindowContext,
10114 ) -> Vec<Range<DisplayPoint>> {
10115 display_snapshot
10116 .buffer_snapshot
10117 .redacted_ranges(search_range, |file| {
10118 if let Some(file) = file {
10119 file.is_private()
10120 && EditorSettings::get(Some(file.as_ref().into()), cx).redact_private_values
10121 } else {
10122 false
10123 }
10124 })
10125 .map(|range| {
10126 range.start.to_display_point(display_snapshot)
10127 ..range.end.to_display_point(display_snapshot)
10128 })
10129 .collect()
10130 }
10131
10132 pub fn highlight_text<T: 'static>(
10133 &mut self,
10134 ranges: Vec<Range<Anchor>>,
10135 style: HighlightStyle,
10136 cx: &mut ViewContext<Self>,
10137 ) {
10138 self.display_map.update(cx, |map, _| {
10139 map.highlight_text(TypeId::of::<T>(), ranges, style)
10140 });
10141 cx.notify();
10142 }
10143
10144 pub(crate) fn highlight_inlays<T: 'static>(
10145 &mut self,
10146 highlights: Vec<InlayHighlight>,
10147 style: HighlightStyle,
10148 cx: &mut ViewContext<Self>,
10149 ) {
10150 self.display_map.update(cx, |map, _| {
10151 map.highlight_inlays(TypeId::of::<T>(), highlights, style)
10152 });
10153 cx.notify();
10154 }
10155
10156 pub fn text_highlights<'a, T: 'static>(
10157 &'a self,
10158 cx: &'a AppContext,
10159 ) -> Option<(HighlightStyle, &'a [Range<Anchor>])> {
10160 self.display_map.read(cx).text_highlights(TypeId::of::<T>())
10161 }
10162
10163 pub fn clear_highlights<T: 'static>(&mut self, cx: &mut ViewContext<Self>) {
10164 let cleared = self
10165 .display_map
10166 .update(cx, |map, _| map.clear_highlights(TypeId::of::<T>()));
10167 if cleared {
10168 cx.notify();
10169 }
10170 }
10171
10172 pub fn show_local_cursors(&self, cx: &WindowContext) -> bool {
10173 (self.read_only(cx) || self.blink_manager.read(cx).visible())
10174 && self.focus_handle.is_focused(cx)
10175 }
10176
10177 fn on_buffer_changed(&mut self, _: Model<MultiBuffer>, cx: &mut ViewContext<Self>) {
10178 cx.notify();
10179 }
10180
10181 fn on_buffer_event(
10182 &mut self,
10183 multibuffer: Model<MultiBuffer>,
10184 event: &multi_buffer::Event,
10185 cx: &mut ViewContext<Self>,
10186 ) {
10187 match event {
10188 multi_buffer::Event::Edited {
10189 singleton_buffer_edited,
10190 } => {
10191 self.scrollbar_marker_state.dirty = true;
10192 self.refresh_active_diagnostics(cx);
10193 self.refresh_code_actions(cx);
10194 if self.has_active_inline_completion(cx) {
10195 self.update_visible_inline_completion(cx);
10196 }
10197 cx.emit(EditorEvent::BufferEdited);
10198 cx.emit(SearchEvent::MatchesInvalidated);
10199
10200 if *singleton_buffer_edited {
10201 if let Some(project) = &self.project {
10202 let project = project.read(cx);
10203 let languages_affected = multibuffer
10204 .read(cx)
10205 .all_buffers()
10206 .into_iter()
10207 .filter_map(|buffer| {
10208 let buffer = buffer.read(cx);
10209 let language = buffer.language()?;
10210 if project.is_local()
10211 && project.language_servers_for_buffer(buffer, cx).count() == 0
10212 {
10213 None
10214 } else {
10215 Some(language)
10216 }
10217 })
10218 .cloned()
10219 .collect::<HashSet<_>>();
10220 if !languages_affected.is_empty() {
10221 self.refresh_inlay_hints(
10222 InlayHintRefreshReason::BufferEdited(languages_affected),
10223 cx,
10224 );
10225 }
10226 }
10227 }
10228
10229 let Some(project) = &self.project else { return };
10230 let telemetry = project.read(cx).client().telemetry().clone();
10231 telemetry.log_edit_event("editor");
10232 }
10233 multi_buffer::Event::ExcerptsAdded {
10234 buffer,
10235 predecessor,
10236 excerpts,
10237 } => {
10238 self.tasks_update_task = Some(self.refresh_runnables(cx));
10239 cx.emit(EditorEvent::ExcerptsAdded {
10240 buffer: buffer.clone(),
10241 predecessor: *predecessor,
10242 excerpts: excerpts.clone(),
10243 });
10244 self.refresh_inlay_hints(InlayHintRefreshReason::NewLinesShown, cx);
10245 }
10246 multi_buffer::Event::ExcerptsRemoved { ids } => {
10247 self.refresh_inlay_hints(InlayHintRefreshReason::ExcerptsRemoved(ids.clone()), cx);
10248 cx.emit(EditorEvent::ExcerptsRemoved { ids: ids.clone() })
10249 }
10250 multi_buffer::Event::Reparsed => {
10251 self.tasks_update_task = Some(self.refresh_runnables(cx));
10252
10253 cx.emit(EditorEvent::Reparsed);
10254 }
10255 multi_buffer::Event::LanguageChanged => {
10256 cx.emit(EditorEvent::Reparsed);
10257 cx.notify();
10258 }
10259 multi_buffer::Event::DirtyChanged => cx.emit(EditorEvent::DirtyChanged),
10260 multi_buffer::Event::Saved => cx.emit(EditorEvent::Saved),
10261 multi_buffer::Event::FileHandleChanged | multi_buffer::Event::Reloaded => {
10262 cx.emit(EditorEvent::TitleChanged)
10263 }
10264 multi_buffer::Event::DiffBaseChanged => {
10265 self.scrollbar_marker_state.dirty = true;
10266 cx.emit(EditorEvent::DiffBaseChanged);
10267 cx.notify();
10268 }
10269 multi_buffer::Event::DiffUpdated { buffer } => {
10270 self.sync_expanded_diff_hunks(buffer.clone(), cx);
10271 cx.notify();
10272 }
10273 multi_buffer::Event::Closed => cx.emit(EditorEvent::Closed),
10274 multi_buffer::Event::DiagnosticsUpdated => {
10275 self.refresh_active_diagnostics(cx);
10276 self.scrollbar_marker_state.dirty = true;
10277 cx.notify();
10278 }
10279 _ => {}
10280 };
10281 }
10282
10283 fn on_display_map_changed(&mut self, _: Model<DisplayMap>, cx: &mut ViewContext<Self>) {
10284 cx.notify();
10285 }
10286
10287 fn settings_changed(&mut self, cx: &mut ViewContext<Self>) {
10288 self.refresh_inline_completion(true, cx);
10289 self.refresh_inlay_hints(
10290 InlayHintRefreshReason::SettingsChange(inlay_hint_settings(
10291 self.selections.newest_anchor().head(),
10292 &self.buffer.read(cx).snapshot(cx),
10293 cx,
10294 )),
10295 cx,
10296 );
10297 let editor_settings = EditorSettings::get_global(cx);
10298 self.scroll_manager.vertical_scroll_margin = editor_settings.vertical_scroll_margin;
10299 self.show_breadcrumbs = editor_settings.toolbar.breadcrumbs;
10300 self.current_line_highlight = editor_settings.current_line_highlight;
10301
10302 if self.mode == EditorMode::Full {
10303 let inline_blame_enabled = ProjectSettings::get_global(cx).git.inline_blame_enabled();
10304 if self.git_blame_inline_enabled != inline_blame_enabled {
10305 self.toggle_git_blame_inline_internal(false, cx);
10306 }
10307 }
10308
10309 cx.notify();
10310 }
10311
10312 pub fn set_searchable(&mut self, searchable: bool) {
10313 self.searchable = searchable;
10314 }
10315
10316 pub fn searchable(&self) -> bool {
10317 self.searchable
10318 }
10319
10320 fn open_excerpts_in_split(&mut self, _: &OpenExcerptsSplit, cx: &mut ViewContext<Self>) {
10321 self.open_excerpts_common(true, cx)
10322 }
10323
10324 fn open_excerpts(&mut self, _: &OpenExcerpts, cx: &mut ViewContext<Self>) {
10325 self.open_excerpts_common(false, cx)
10326 }
10327
10328 fn open_excerpts_common(&mut self, split: bool, cx: &mut ViewContext<Self>) {
10329 let buffer = self.buffer.read(cx);
10330 if buffer.is_singleton() {
10331 cx.propagate();
10332 return;
10333 }
10334
10335 let Some(workspace) = self.workspace() else {
10336 cx.propagate();
10337 return;
10338 };
10339
10340 let mut new_selections_by_buffer = HashMap::default();
10341 for selection in self.selections.all::<usize>(cx) {
10342 for (buffer, mut range, _) in
10343 buffer.range_to_buffer_ranges(selection.start..selection.end, cx)
10344 {
10345 if selection.reversed {
10346 mem::swap(&mut range.start, &mut range.end);
10347 }
10348 new_selections_by_buffer
10349 .entry(buffer)
10350 .or_insert(Vec::new())
10351 .push(range)
10352 }
10353 }
10354
10355 // We defer the pane interaction because we ourselves are a workspace item
10356 // and activating a new item causes the pane to call a method on us reentrantly,
10357 // which panics if we're on the stack.
10358 cx.window_context().defer(move |cx| {
10359 workspace.update(cx, |workspace, cx| {
10360 let pane = if split {
10361 workspace.adjacent_pane(cx)
10362 } else {
10363 workspace.active_pane().clone()
10364 };
10365
10366 for (buffer, ranges) in new_selections_by_buffer {
10367 let editor = workspace.open_project_item::<Self>(pane.clone(), buffer, cx);
10368 editor.update(cx, |editor, cx| {
10369 editor.change_selections(Some(Autoscroll::newest()), cx, |s| {
10370 s.select_ranges(ranges);
10371 });
10372 });
10373 }
10374 })
10375 });
10376 }
10377
10378 fn jump(
10379 &mut self,
10380 path: ProjectPath,
10381 position: Point,
10382 anchor: language::Anchor,
10383 offset_from_top: u32,
10384 cx: &mut ViewContext<Self>,
10385 ) {
10386 let workspace = self.workspace();
10387 cx.spawn(|_, mut cx| async move {
10388 let workspace = workspace.ok_or_else(|| anyhow!("cannot jump without workspace"))?;
10389 let editor = workspace.update(&mut cx, |workspace, cx| {
10390 // Reset the preview item id before opening the new item
10391 workspace.active_pane().update(cx, |pane, cx| {
10392 pane.set_preview_item_id(None, cx);
10393 });
10394 workspace.open_path_preview(path, None, true, true, cx)
10395 })?;
10396 let editor = editor
10397 .await?
10398 .downcast::<Editor>()
10399 .ok_or_else(|| anyhow!("opened item was not an editor"))?
10400 .downgrade();
10401 editor.update(&mut cx, |editor, cx| {
10402 let buffer = editor
10403 .buffer()
10404 .read(cx)
10405 .as_singleton()
10406 .ok_or_else(|| anyhow!("cannot jump in a multi-buffer"))?;
10407 let buffer = buffer.read(cx);
10408 let cursor = if buffer.can_resolve(&anchor) {
10409 language::ToPoint::to_point(&anchor, buffer)
10410 } else {
10411 buffer.clip_point(position, Bias::Left)
10412 };
10413
10414 let nav_history = editor.nav_history.take();
10415 editor.change_selections(
10416 Some(Autoscroll::top_relative(offset_from_top as usize)),
10417 cx,
10418 |s| {
10419 s.select_ranges([cursor..cursor]);
10420 },
10421 );
10422 editor.nav_history = nav_history;
10423
10424 anyhow::Ok(())
10425 })??;
10426
10427 anyhow::Ok(())
10428 })
10429 .detach_and_log_err(cx);
10430 }
10431
10432 fn marked_text_ranges(&self, cx: &AppContext) -> Option<Vec<Range<OffsetUtf16>>> {
10433 let snapshot = self.buffer.read(cx).read(cx);
10434 let (_, ranges) = self.text_highlights::<InputComposition>(cx)?;
10435 Some(
10436 ranges
10437 .iter()
10438 .map(move |range| {
10439 range.start.to_offset_utf16(&snapshot)..range.end.to_offset_utf16(&snapshot)
10440 })
10441 .collect(),
10442 )
10443 }
10444
10445 fn selection_replacement_ranges(
10446 &self,
10447 range: Range<OffsetUtf16>,
10448 cx: &AppContext,
10449 ) -> Vec<Range<OffsetUtf16>> {
10450 let selections = self.selections.all::<OffsetUtf16>(cx);
10451 let newest_selection = selections
10452 .iter()
10453 .max_by_key(|selection| selection.id)
10454 .unwrap();
10455 let start_delta = range.start.0 as isize - newest_selection.start.0 as isize;
10456 let end_delta = range.end.0 as isize - newest_selection.end.0 as isize;
10457 let snapshot = self.buffer.read(cx).read(cx);
10458 selections
10459 .into_iter()
10460 .map(|mut selection| {
10461 selection.start.0 =
10462 (selection.start.0 as isize).saturating_add(start_delta) as usize;
10463 selection.end.0 = (selection.end.0 as isize).saturating_add(end_delta) as usize;
10464 snapshot.clip_offset_utf16(selection.start, Bias::Left)
10465 ..snapshot.clip_offset_utf16(selection.end, Bias::Right)
10466 })
10467 .collect()
10468 }
10469
10470 fn report_editor_event(
10471 &self,
10472 operation: &'static str,
10473 file_extension: Option<String>,
10474 cx: &AppContext,
10475 ) {
10476 if cfg!(any(test, feature = "test-support")) {
10477 return;
10478 }
10479
10480 let Some(project) = &self.project else { return };
10481
10482 // If None, we are in a file without an extension
10483 let file = self
10484 .buffer
10485 .read(cx)
10486 .as_singleton()
10487 .and_then(|b| b.read(cx).file());
10488 let file_extension = file_extension.or(file
10489 .as_ref()
10490 .and_then(|file| Path::new(file.file_name(cx)).extension())
10491 .and_then(|e| e.to_str())
10492 .map(|a| a.to_string()));
10493
10494 let vim_mode = cx
10495 .global::<SettingsStore>()
10496 .raw_user_settings()
10497 .get("vim_mode")
10498 == Some(&serde_json::Value::Bool(true));
10499
10500 let copilot_enabled = all_language_settings(file, cx).inline_completions.provider
10501 == language::language_settings::InlineCompletionProvider::Copilot;
10502 let copilot_enabled_for_language = self
10503 .buffer
10504 .read(cx)
10505 .settings_at(0, cx)
10506 .show_inline_completions;
10507
10508 let telemetry = project.read(cx).client().telemetry().clone();
10509 telemetry.report_editor_event(
10510 file_extension,
10511 vim_mode,
10512 operation,
10513 copilot_enabled,
10514 copilot_enabled_for_language,
10515 )
10516 }
10517
10518 /// Copy the highlighted chunks to the clipboard as JSON. The format is an array of lines,
10519 /// with each line being an array of {text, highlight} objects.
10520 fn copy_highlight_json(&mut self, _: &CopyHighlightJson, cx: &mut ViewContext<Self>) {
10521 let Some(buffer) = self.buffer.read(cx).as_singleton() else {
10522 return;
10523 };
10524
10525 #[derive(Serialize)]
10526 struct Chunk<'a> {
10527 text: String,
10528 highlight: Option<&'a str>,
10529 }
10530
10531 let snapshot = buffer.read(cx).snapshot();
10532 let range = self
10533 .selected_text_range(cx)
10534 .and_then(|selected_range| {
10535 if selected_range.is_empty() {
10536 None
10537 } else {
10538 Some(selected_range)
10539 }
10540 })
10541 .unwrap_or_else(|| 0..snapshot.len());
10542
10543 let chunks = snapshot.chunks(range, true);
10544 let mut lines = Vec::new();
10545 let mut line: VecDeque<Chunk> = VecDeque::new();
10546
10547 let Some(style) = self.style.as_ref() else {
10548 return;
10549 };
10550
10551 for chunk in chunks {
10552 let highlight = chunk
10553 .syntax_highlight_id
10554 .and_then(|id| id.name(&style.syntax));
10555 let mut chunk_lines = chunk.text.split('\n').peekable();
10556 while let Some(text) = chunk_lines.next() {
10557 let mut merged_with_last_token = false;
10558 if let Some(last_token) = line.back_mut() {
10559 if last_token.highlight == highlight {
10560 last_token.text.push_str(text);
10561 merged_with_last_token = true;
10562 }
10563 }
10564
10565 if !merged_with_last_token {
10566 line.push_back(Chunk {
10567 text: text.into(),
10568 highlight,
10569 });
10570 }
10571
10572 if chunk_lines.peek().is_some() {
10573 if line.len() > 1 && line.front().unwrap().text.is_empty() {
10574 line.pop_front();
10575 }
10576 if line.len() > 1 && line.back().unwrap().text.is_empty() {
10577 line.pop_back();
10578 }
10579
10580 lines.push(mem::take(&mut line));
10581 }
10582 }
10583 }
10584
10585 let Some(lines) = serde_json::to_string_pretty(&lines).log_err() else {
10586 return;
10587 };
10588 cx.write_to_clipboard(ClipboardItem::new(lines));
10589 }
10590
10591 pub fn inlay_hint_cache(&self) -> &InlayHintCache {
10592 &self.inlay_hint_cache
10593 }
10594
10595 pub fn replay_insert_event(
10596 &mut self,
10597 text: &str,
10598 relative_utf16_range: Option<Range<isize>>,
10599 cx: &mut ViewContext<Self>,
10600 ) {
10601 if !self.input_enabled {
10602 cx.emit(EditorEvent::InputIgnored { text: text.into() });
10603 return;
10604 }
10605 if let Some(relative_utf16_range) = relative_utf16_range {
10606 let selections = self.selections.all::<OffsetUtf16>(cx);
10607 self.change_selections(None, cx, |s| {
10608 let new_ranges = selections.into_iter().map(|range| {
10609 let start = OffsetUtf16(
10610 range
10611 .head()
10612 .0
10613 .saturating_add_signed(relative_utf16_range.start),
10614 );
10615 let end = OffsetUtf16(
10616 range
10617 .head()
10618 .0
10619 .saturating_add_signed(relative_utf16_range.end),
10620 );
10621 start..end
10622 });
10623 s.select_ranges(new_ranges);
10624 });
10625 }
10626
10627 self.handle_input(text, cx);
10628 }
10629
10630 pub fn supports_inlay_hints(&self, cx: &AppContext) -> bool {
10631 let Some(project) = self.project.as_ref() else {
10632 return false;
10633 };
10634 let project = project.read(cx);
10635
10636 let mut supports = false;
10637 self.buffer().read(cx).for_each_buffer(|buffer| {
10638 if !supports {
10639 supports = project
10640 .language_servers_for_buffer(buffer.read(cx), cx)
10641 .any(
10642 |(_, server)| match server.capabilities().inlay_hint_provider {
10643 Some(lsp::OneOf::Left(enabled)) => enabled,
10644 Some(lsp::OneOf::Right(_)) => true,
10645 None => false,
10646 },
10647 )
10648 }
10649 });
10650 supports
10651 }
10652
10653 pub fn focus(&self, cx: &mut WindowContext) {
10654 cx.focus(&self.focus_handle)
10655 }
10656
10657 pub fn is_focused(&self, cx: &WindowContext) -> bool {
10658 self.focus_handle.is_focused(cx)
10659 }
10660
10661 fn handle_focus(&mut self, cx: &mut ViewContext<Self>) {
10662 cx.emit(EditorEvent::Focused);
10663
10664 if let Some(rename) = self.pending_rename.as_ref() {
10665 let rename_editor_focus_handle = rename.editor.read(cx).focus_handle.clone();
10666 cx.focus(&rename_editor_focus_handle);
10667 } else {
10668 if let Some(blame) = self.blame.as_ref() {
10669 blame.update(cx, GitBlame::focus)
10670 }
10671
10672 self.blink_manager.update(cx, BlinkManager::enable);
10673 self.show_cursor_names(cx);
10674 self.buffer.update(cx, |buffer, cx| {
10675 buffer.finalize_last_transaction(cx);
10676 if self.leader_peer_id.is_none() {
10677 buffer.set_active_selections(
10678 &self.selections.disjoint_anchors(),
10679 self.selections.line_mode,
10680 self.cursor_shape,
10681 cx,
10682 );
10683 }
10684 });
10685 }
10686 }
10687
10688 pub fn handle_blur(&mut self, cx: &mut ViewContext<Self>) {
10689 self.blink_manager.update(cx, BlinkManager::disable);
10690 self.buffer
10691 .update(cx, |buffer, cx| buffer.remove_active_selections(cx));
10692
10693 if let Some(blame) = self.blame.as_ref() {
10694 blame.update(cx, GitBlame::blur)
10695 }
10696 self.hide_context_menu(cx);
10697 hide_hover(self, cx);
10698 cx.emit(EditorEvent::Blurred);
10699 cx.notify();
10700 }
10701
10702 pub fn register_action<A: Action>(
10703 &mut self,
10704 listener: impl Fn(&A, &mut WindowContext) + 'static,
10705 ) -> &mut Self {
10706 let listener = Arc::new(listener);
10707
10708 self.editor_actions.push(Box::new(move |cx| {
10709 let _view = cx.view().clone();
10710 let cx = cx.window_context();
10711 let listener = listener.clone();
10712 cx.on_action(TypeId::of::<A>(), move |action, phase, cx| {
10713 let action = action.downcast_ref().unwrap();
10714 if phase == DispatchPhase::Bubble {
10715 listener(action, cx)
10716 }
10717 })
10718 }));
10719 self
10720 }
10721}
10722
10723fn hunks_for_selections(
10724 multi_buffer_snapshot: &MultiBufferSnapshot,
10725 selections: &[Selection<Anchor>],
10726) -> Vec<DiffHunk<MultiBufferRow>> {
10727 let mut hunks = Vec::with_capacity(selections.len());
10728 let mut processed_buffer_rows: HashMap<BufferId, HashSet<Range<text::Anchor>>> =
10729 HashMap::default();
10730 let buffer_rows_for_selections = selections.iter().map(|selection| {
10731 let head = selection.head();
10732 let tail = selection.tail();
10733 let start = MultiBufferRow(tail.to_point(&multi_buffer_snapshot).row);
10734 let end = MultiBufferRow(head.to_point(&multi_buffer_snapshot).row);
10735 if start > end {
10736 end..start
10737 } else {
10738 start..end
10739 }
10740 });
10741
10742 for selected_multi_buffer_rows in buffer_rows_for_selections {
10743 let query_rows =
10744 selected_multi_buffer_rows.start..selected_multi_buffer_rows.end.next_row();
10745 for hunk in multi_buffer_snapshot.git_diff_hunks_in_range(query_rows.clone()) {
10746 // Deleted hunk is an empty row range, no caret can be placed there and Zed allows to revert it
10747 // when the caret is just above or just below the deleted hunk.
10748 let allow_adjacent = hunk_status(&hunk) == DiffHunkStatus::Removed;
10749 let related_to_selection = if allow_adjacent {
10750 hunk.associated_range.overlaps(&query_rows)
10751 || hunk.associated_range.start == query_rows.end
10752 || hunk.associated_range.end == query_rows.start
10753 } else {
10754 // `selected_multi_buffer_rows` are inclusive (e.g. [2..2] means 2nd row is selected)
10755 // `hunk.associated_range` is exclusive (e.g. [2..3] means 2nd row is selected)
10756 hunk.associated_range.overlaps(&selected_multi_buffer_rows)
10757 || selected_multi_buffer_rows.end == hunk.associated_range.start
10758 };
10759 if related_to_selection {
10760 if !processed_buffer_rows
10761 .entry(hunk.buffer_id)
10762 .or_default()
10763 .insert(hunk.buffer_range.start..hunk.buffer_range.end)
10764 {
10765 continue;
10766 }
10767 hunks.push(hunk);
10768 }
10769 }
10770 }
10771
10772 hunks
10773}
10774
10775pub trait CollaborationHub {
10776 fn collaborators<'a>(&self, cx: &'a AppContext) -> &'a HashMap<PeerId, Collaborator>;
10777 fn user_participant_indices<'a>(
10778 &self,
10779 cx: &'a AppContext,
10780 ) -> &'a HashMap<u64, ParticipantIndex>;
10781 fn user_names(&self, cx: &AppContext) -> HashMap<u64, SharedString>;
10782}
10783
10784impl CollaborationHub for Model<Project> {
10785 fn collaborators<'a>(&self, cx: &'a AppContext) -> &'a HashMap<PeerId, Collaborator> {
10786 self.read(cx).collaborators()
10787 }
10788
10789 fn user_participant_indices<'a>(
10790 &self,
10791 cx: &'a AppContext,
10792 ) -> &'a HashMap<u64, ParticipantIndex> {
10793 self.read(cx).user_store().read(cx).participant_indices()
10794 }
10795
10796 fn user_names(&self, cx: &AppContext) -> HashMap<u64, SharedString> {
10797 let this = self.read(cx);
10798 let user_ids = this.collaborators().values().map(|c| c.user_id);
10799 this.user_store().read_with(cx, |user_store, cx| {
10800 user_store.participant_names(user_ids, cx)
10801 })
10802 }
10803}
10804
10805pub trait CompletionProvider {
10806 fn completions(
10807 &self,
10808 buffer: &Model<Buffer>,
10809 buffer_position: text::Anchor,
10810 cx: &mut ViewContext<Editor>,
10811 ) -> Task<Result<Vec<Completion>>>;
10812
10813 fn resolve_completions(
10814 &self,
10815 buffer: Model<Buffer>,
10816 completion_indices: Vec<usize>,
10817 completions: Arc<RwLock<Box<[Completion]>>>,
10818 cx: &mut ViewContext<Editor>,
10819 ) -> Task<Result<bool>>;
10820
10821 fn apply_additional_edits_for_completion(
10822 &self,
10823 buffer: Model<Buffer>,
10824 completion: Completion,
10825 push_to_history: bool,
10826 cx: &mut ViewContext<Editor>,
10827 ) -> Task<Result<Option<language::Transaction>>>;
10828}
10829
10830impl CompletionProvider for Model<Project> {
10831 fn completions(
10832 &self,
10833 buffer: &Model<Buffer>,
10834 buffer_position: text::Anchor,
10835 cx: &mut ViewContext<Editor>,
10836 ) -> Task<Result<Vec<Completion>>> {
10837 self.update(cx, |project, cx| {
10838 project.completions(&buffer, buffer_position, cx)
10839 })
10840 }
10841
10842 fn resolve_completions(
10843 &self,
10844 buffer: Model<Buffer>,
10845 completion_indices: Vec<usize>,
10846 completions: Arc<RwLock<Box<[Completion]>>>,
10847 cx: &mut ViewContext<Editor>,
10848 ) -> Task<Result<bool>> {
10849 self.update(cx, |project, cx| {
10850 project.resolve_completions(buffer, completion_indices, completions, cx)
10851 })
10852 }
10853
10854 fn apply_additional_edits_for_completion(
10855 &self,
10856 buffer: Model<Buffer>,
10857 completion: Completion,
10858 push_to_history: bool,
10859 cx: &mut ViewContext<Editor>,
10860 ) -> Task<Result<Option<language::Transaction>>> {
10861 self.update(cx, |project, cx| {
10862 project.apply_additional_edits_for_completion(buffer, completion, push_to_history, cx)
10863 })
10864 }
10865}
10866
10867fn inlay_hint_settings(
10868 location: Anchor,
10869 snapshot: &MultiBufferSnapshot,
10870 cx: &mut ViewContext<'_, Editor>,
10871) -> InlayHintSettings {
10872 let file = snapshot.file_at(location);
10873 let language = snapshot.language_at(location);
10874 let settings = all_language_settings(file, cx);
10875 settings
10876 .language(language.map(|l| l.name()).as_deref())
10877 .inlay_hints
10878}
10879
10880fn consume_contiguous_rows(
10881 contiguous_row_selections: &mut Vec<Selection<Point>>,
10882 selection: &Selection<Point>,
10883 display_map: &DisplaySnapshot,
10884 selections: &mut std::iter::Peekable<std::slice::Iter<Selection<Point>>>,
10885) -> (MultiBufferRow, MultiBufferRow) {
10886 contiguous_row_selections.push(selection.clone());
10887 let start_row = MultiBufferRow(selection.start.row);
10888 let mut end_row = ending_row(selection, display_map);
10889
10890 while let Some(next_selection) = selections.peek() {
10891 if next_selection.start.row <= end_row.0 {
10892 end_row = ending_row(next_selection, display_map);
10893 contiguous_row_selections.push(selections.next().unwrap().clone());
10894 } else {
10895 break;
10896 }
10897 }
10898 (start_row, end_row)
10899}
10900
10901fn ending_row(next_selection: &Selection<Point>, display_map: &DisplaySnapshot) -> MultiBufferRow {
10902 if next_selection.end.column > 0 || next_selection.is_empty() {
10903 MultiBufferRow(display_map.next_line_boundary(next_selection.end).0.row + 1)
10904 } else {
10905 MultiBufferRow(next_selection.end.row)
10906 }
10907}
10908
10909impl EditorSnapshot {
10910 pub fn remote_selections_in_range<'a>(
10911 &'a self,
10912 range: &'a Range<Anchor>,
10913 collaboration_hub: &dyn CollaborationHub,
10914 cx: &'a AppContext,
10915 ) -> impl 'a + Iterator<Item = RemoteSelection> {
10916 let participant_names = collaboration_hub.user_names(cx);
10917 let participant_indices = collaboration_hub.user_participant_indices(cx);
10918 let collaborators_by_peer_id = collaboration_hub.collaborators(cx);
10919 let collaborators_by_replica_id = collaborators_by_peer_id
10920 .iter()
10921 .map(|(_, collaborator)| (collaborator.replica_id, collaborator))
10922 .collect::<HashMap<_, _>>();
10923 self.buffer_snapshot
10924 .remote_selections_in_range(range)
10925 .filter_map(move |(replica_id, line_mode, cursor_shape, selection)| {
10926 let collaborator = collaborators_by_replica_id.get(&replica_id)?;
10927 let participant_index = participant_indices.get(&collaborator.user_id).copied();
10928 let user_name = participant_names.get(&collaborator.user_id).cloned();
10929 Some(RemoteSelection {
10930 replica_id,
10931 selection,
10932 cursor_shape,
10933 line_mode,
10934 participant_index,
10935 peer_id: collaborator.peer_id,
10936 user_name,
10937 })
10938 })
10939 }
10940
10941 pub fn language_at<T: ToOffset>(&self, position: T) -> Option<&Arc<Language>> {
10942 self.display_snapshot.buffer_snapshot.language_at(position)
10943 }
10944
10945 pub fn is_focused(&self) -> bool {
10946 self.is_focused
10947 }
10948
10949 pub fn placeholder_text(&self) -> Option<&Arc<str>> {
10950 self.placeholder_text.as_ref()
10951 }
10952
10953 pub fn scroll_position(&self) -> gpui::Point<f32> {
10954 self.scroll_anchor.scroll_position(&self.display_snapshot)
10955 }
10956
10957 pub fn gutter_dimensions(
10958 &self,
10959 font_id: FontId,
10960 font_size: Pixels,
10961 em_width: Pixels,
10962 max_line_number_width: Pixels,
10963 cx: &AppContext,
10964 ) -> GutterDimensions {
10965 if !self.show_gutter {
10966 return GutterDimensions::default();
10967 }
10968 let descent = cx.text_system().descent(font_id, font_size);
10969
10970 let show_git_gutter = matches!(
10971 ProjectSettings::get_global(cx).git.git_gutter,
10972 Some(GitGutterSetting::TrackedFiles)
10973 );
10974 let gutter_settings = EditorSettings::get_global(cx).gutter;
10975 let gutter_lines_enabled = gutter_settings.line_numbers;
10976 let line_gutter_width = if gutter_lines_enabled {
10977 // Avoid flicker-like gutter resizes when the line number gains another digit and only resize the gutter on files with N*10^5 lines.
10978 let min_width_for_number_on_gutter = em_width * 4.0;
10979 max_line_number_width.max(min_width_for_number_on_gutter)
10980 } else {
10981 0.0.into()
10982 };
10983
10984 let git_blame_entries_width = self
10985 .render_git_blame_gutter
10986 .then_some(em_width * GIT_BLAME_GUTTER_WIDTH_CHARS);
10987
10988 let mut left_padding = git_blame_entries_width.unwrap_or(Pixels::ZERO);
10989 left_padding += if gutter_settings.code_actions {
10990 em_width * 3.0
10991 } else if show_git_gutter && gutter_lines_enabled {
10992 em_width * 2.0
10993 } else if show_git_gutter || gutter_lines_enabled {
10994 em_width
10995 } else {
10996 px(0.)
10997 };
10998
10999 let right_padding = if gutter_settings.folds && gutter_lines_enabled {
11000 em_width * 4.0
11001 } else if gutter_settings.folds {
11002 em_width * 3.0
11003 } else if gutter_lines_enabled {
11004 em_width
11005 } else {
11006 px(0.)
11007 };
11008
11009 GutterDimensions {
11010 left_padding,
11011 right_padding,
11012 width: line_gutter_width + left_padding + right_padding,
11013 margin: -descent,
11014 git_blame_entries_width,
11015 }
11016 }
11017}
11018
11019impl Deref for EditorSnapshot {
11020 type Target = DisplaySnapshot;
11021
11022 fn deref(&self) -> &Self::Target {
11023 &self.display_snapshot
11024 }
11025}
11026
11027#[derive(Clone, Debug, PartialEq, Eq)]
11028pub enum EditorEvent {
11029 InputIgnored {
11030 text: Arc<str>,
11031 },
11032 InputHandled {
11033 utf16_range_to_replace: Option<Range<isize>>,
11034 text: Arc<str>,
11035 },
11036 ExcerptsAdded {
11037 buffer: Model<Buffer>,
11038 predecessor: ExcerptId,
11039 excerpts: Vec<(ExcerptId, ExcerptRange<language::Anchor>)>,
11040 },
11041 ExcerptsRemoved {
11042 ids: Vec<ExcerptId>,
11043 },
11044 BufferEdited,
11045 Edited,
11046 Reparsed,
11047 Focused,
11048 Blurred,
11049 DirtyChanged,
11050 Saved,
11051 TitleChanged,
11052 DiffBaseChanged,
11053 SelectionsChanged {
11054 local: bool,
11055 },
11056 ScrollPositionChanged {
11057 local: bool,
11058 autoscroll: bool,
11059 },
11060 Closed,
11061 TransactionUndone {
11062 transaction_id: clock::Lamport,
11063 },
11064 TransactionBegun {
11065 transaction_id: clock::Lamport,
11066 },
11067}
11068
11069impl EventEmitter<EditorEvent> for Editor {}
11070
11071impl FocusableView for Editor {
11072 fn focus_handle(&self, _cx: &AppContext) -> FocusHandle {
11073 self.focus_handle.clone()
11074 }
11075}
11076
11077impl Render for Editor {
11078 fn render<'a>(&mut self, cx: &mut ViewContext<'a, Self>) -> impl IntoElement {
11079 let settings = ThemeSettings::get_global(cx);
11080
11081 let text_style = match self.mode {
11082 EditorMode::SingleLine | EditorMode::AutoHeight { .. } => TextStyle {
11083 color: cx.theme().colors().editor_foreground,
11084 font_family: settings.ui_font.family.clone(),
11085 font_features: settings.ui_font.features.clone(),
11086 font_size: rems(0.875).into(),
11087 font_weight: FontWeight::NORMAL,
11088 font_style: FontStyle::Normal,
11089 line_height: relative(settings.buffer_line_height.value()),
11090 background_color: None,
11091 underline: None,
11092 strikethrough: None,
11093 white_space: WhiteSpace::Normal,
11094 },
11095 EditorMode::Full => TextStyle {
11096 color: cx.theme().colors().editor_foreground,
11097 font_family: settings.buffer_font.family.clone(),
11098 font_features: settings.buffer_font.features.clone(),
11099 font_size: settings.buffer_font_size(cx).into(),
11100 font_weight: FontWeight::NORMAL,
11101 font_style: FontStyle::Normal,
11102 line_height: relative(settings.buffer_line_height.value()),
11103 background_color: None,
11104 underline: None,
11105 strikethrough: None,
11106 white_space: WhiteSpace::Normal,
11107 },
11108 };
11109
11110 let background = match self.mode {
11111 EditorMode::SingleLine => cx.theme().system().transparent,
11112 EditorMode::AutoHeight { max_lines: _ } => cx.theme().system().transparent,
11113 EditorMode::Full => cx.theme().colors().editor_background,
11114 };
11115
11116 EditorElement::new(
11117 cx.view(),
11118 EditorStyle {
11119 background,
11120 local_player: cx.theme().players().local(),
11121 text: text_style,
11122 scrollbar_width: EditorElement::SCROLLBAR_WIDTH,
11123 syntax: cx.theme().syntax().clone(),
11124 status: cx.theme().status().clone(),
11125 inlay_hints_style: HighlightStyle {
11126 color: Some(cx.theme().status().hint),
11127 ..HighlightStyle::default()
11128 },
11129 suggestions_style: HighlightStyle {
11130 color: Some(cx.theme().status().predictive),
11131 ..HighlightStyle::default()
11132 },
11133 },
11134 )
11135 }
11136}
11137
11138impl ViewInputHandler for Editor {
11139 fn text_for_range(
11140 &mut self,
11141 range_utf16: Range<usize>,
11142 cx: &mut ViewContext<Self>,
11143 ) -> Option<String> {
11144 Some(
11145 self.buffer
11146 .read(cx)
11147 .read(cx)
11148 .text_for_range(OffsetUtf16(range_utf16.start)..OffsetUtf16(range_utf16.end))
11149 .collect(),
11150 )
11151 }
11152
11153 fn selected_text_range(&mut self, cx: &mut ViewContext<Self>) -> Option<Range<usize>> {
11154 // Prevent the IME menu from appearing when holding down an alphabetic key
11155 // while input is disabled.
11156 if !self.input_enabled {
11157 return None;
11158 }
11159
11160 let range = self.selections.newest::<OffsetUtf16>(cx).range();
11161 Some(range.start.0..range.end.0)
11162 }
11163
11164 fn marked_text_range(&self, cx: &mut ViewContext<Self>) -> Option<Range<usize>> {
11165 let snapshot = self.buffer.read(cx).read(cx);
11166 let range = self.text_highlights::<InputComposition>(cx)?.1.get(0)?;
11167 Some(range.start.to_offset_utf16(&snapshot).0..range.end.to_offset_utf16(&snapshot).0)
11168 }
11169
11170 fn unmark_text(&mut self, cx: &mut ViewContext<Self>) {
11171 self.clear_highlights::<InputComposition>(cx);
11172 self.ime_transaction.take();
11173 }
11174
11175 fn replace_text_in_range(
11176 &mut self,
11177 range_utf16: Option<Range<usize>>,
11178 text: &str,
11179 cx: &mut ViewContext<Self>,
11180 ) {
11181 if !self.input_enabled {
11182 cx.emit(EditorEvent::InputIgnored { text: text.into() });
11183 return;
11184 }
11185
11186 self.transact(cx, |this, cx| {
11187 let new_selected_ranges = if let Some(range_utf16) = range_utf16 {
11188 let range_utf16 = OffsetUtf16(range_utf16.start)..OffsetUtf16(range_utf16.end);
11189 Some(this.selection_replacement_ranges(range_utf16, cx))
11190 } else {
11191 this.marked_text_ranges(cx)
11192 };
11193
11194 let range_to_replace = new_selected_ranges.as_ref().and_then(|ranges_to_replace| {
11195 let newest_selection_id = this.selections.newest_anchor().id;
11196 this.selections
11197 .all::<OffsetUtf16>(cx)
11198 .iter()
11199 .zip(ranges_to_replace.iter())
11200 .find_map(|(selection, range)| {
11201 if selection.id == newest_selection_id {
11202 Some(
11203 (range.start.0 as isize - selection.head().0 as isize)
11204 ..(range.end.0 as isize - selection.head().0 as isize),
11205 )
11206 } else {
11207 None
11208 }
11209 })
11210 });
11211
11212 cx.emit(EditorEvent::InputHandled {
11213 utf16_range_to_replace: range_to_replace,
11214 text: text.into(),
11215 });
11216
11217 if let Some(new_selected_ranges) = new_selected_ranges {
11218 this.change_selections(None, cx, |selections| {
11219 selections.select_ranges(new_selected_ranges)
11220 });
11221 this.backspace(&Default::default(), cx);
11222 }
11223
11224 this.handle_input(text, cx);
11225 });
11226
11227 if let Some(transaction) = self.ime_transaction {
11228 self.buffer.update(cx, |buffer, cx| {
11229 buffer.group_until_transaction(transaction, cx);
11230 });
11231 }
11232
11233 self.unmark_text(cx);
11234 }
11235
11236 fn replace_and_mark_text_in_range(
11237 &mut self,
11238 range_utf16: Option<Range<usize>>,
11239 text: &str,
11240 new_selected_range_utf16: Option<Range<usize>>,
11241 cx: &mut ViewContext<Self>,
11242 ) {
11243 if !self.input_enabled {
11244 cx.emit(EditorEvent::InputIgnored { text: text.into() });
11245 return;
11246 }
11247
11248 let transaction = self.transact(cx, |this, cx| {
11249 let ranges_to_replace = if let Some(mut marked_ranges) = this.marked_text_ranges(cx) {
11250 let snapshot = this.buffer.read(cx).read(cx);
11251 if let Some(relative_range_utf16) = range_utf16.as_ref() {
11252 for marked_range in &mut marked_ranges {
11253 marked_range.end.0 = marked_range.start.0 + relative_range_utf16.end;
11254 marked_range.start.0 += relative_range_utf16.start;
11255 marked_range.start =
11256 snapshot.clip_offset_utf16(marked_range.start, Bias::Left);
11257 marked_range.end =
11258 snapshot.clip_offset_utf16(marked_range.end, Bias::Right);
11259 }
11260 }
11261 Some(marked_ranges)
11262 } else if let Some(range_utf16) = range_utf16 {
11263 let range_utf16 = OffsetUtf16(range_utf16.start)..OffsetUtf16(range_utf16.end);
11264 Some(this.selection_replacement_ranges(range_utf16, cx))
11265 } else {
11266 None
11267 };
11268
11269 let range_to_replace = ranges_to_replace.as_ref().and_then(|ranges_to_replace| {
11270 let newest_selection_id = this.selections.newest_anchor().id;
11271 this.selections
11272 .all::<OffsetUtf16>(cx)
11273 .iter()
11274 .zip(ranges_to_replace.iter())
11275 .find_map(|(selection, range)| {
11276 if selection.id == newest_selection_id {
11277 Some(
11278 (range.start.0 as isize - selection.head().0 as isize)
11279 ..(range.end.0 as isize - selection.head().0 as isize),
11280 )
11281 } else {
11282 None
11283 }
11284 })
11285 });
11286
11287 cx.emit(EditorEvent::InputHandled {
11288 utf16_range_to_replace: range_to_replace,
11289 text: text.into(),
11290 });
11291
11292 if let Some(ranges) = ranges_to_replace {
11293 this.change_selections(None, cx, |s| s.select_ranges(ranges));
11294 }
11295
11296 let marked_ranges = {
11297 let snapshot = this.buffer.read(cx).read(cx);
11298 this.selections
11299 .disjoint_anchors()
11300 .iter()
11301 .map(|selection| {
11302 selection.start.bias_left(&snapshot)..selection.end.bias_right(&snapshot)
11303 })
11304 .collect::<Vec<_>>()
11305 };
11306
11307 if text.is_empty() {
11308 this.unmark_text(cx);
11309 } else {
11310 this.highlight_text::<InputComposition>(
11311 marked_ranges.clone(),
11312 HighlightStyle {
11313 underline: Some(UnderlineStyle {
11314 thickness: px(1.),
11315 color: None,
11316 wavy: false,
11317 }),
11318 ..Default::default()
11319 },
11320 cx,
11321 );
11322 }
11323
11324 // Disable auto-closing when composing text (i.e. typing a `"` on a Brazilian keyboard)
11325 let use_autoclose = this.use_autoclose;
11326 this.set_use_autoclose(false);
11327 this.handle_input(text, cx);
11328 this.set_use_autoclose(use_autoclose);
11329
11330 if let Some(new_selected_range) = new_selected_range_utf16 {
11331 let snapshot = this.buffer.read(cx).read(cx);
11332 let new_selected_ranges = marked_ranges
11333 .into_iter()
11334 .map(|marked_range| {
11335 let insertion_start = marked_range.start.to_offset_utf16(&snapshot).0;
11336 let new_start = OffsetUtf16(new_selected_range.start + insertion_start);
11337 let new_end = OffsetUtf16(new_selected_range.end + insertion_start);
11338 snapshot.clip_offset_utf16(new_start, Bias::Left)
11339 ..snapshot.clip_offset_utf16(new_end, Bias::Right)
11340 })
11341 .collect::<Vec<_>>();
11342
11343 drop(snapshot);
11344 this.change_selections(None, cx, |selections| {
11345 selections.select_ranges(new_selected_ranges)
11346 });
11347 }
11348 });
11349
11350 self.ime_transaction = self.ime_transaction.or(transaction);
11351 if let Some(transaction) = self.ime_transaction {
11352 self.buffer.update(cx, |buffer, cx| {
11353 buffer.group_until_transaction(transaction, cx);
11354 });
11355 }
11356
11357 if self.text_highlights::<InputComposition>(cx).is_none() {
11358 self.ime_transaction.take();
11359 }
11360 }
11361
11362 fn bounds_for_range(
11363 &mut self,
11364 range_utf16: Range<usize>,
11365 element_bounds: gpui::Bounds<Pixels>,
11366 cx: &mut ViewContext<Self>,
11367 ) -> Option<gpui::Bounds<Pixels>> {
11368 let text_layout_details = self.text_layout_details(cx);
11369 let style = &text_layout_details.editor_style;
11370 let font_id = cx.text_system().resolve_font(&style.text.font());
11371 let font_size = style.text.font_size.to_pixels(cx.rem_size());
11372 let line_height = style.text.line_height_in_pixels(cx.rem_size());
11373 let em_width = cx
11374 .text_system()
11375 .typographic_bounds(font_id, font_size, 'm')
11376 .unwrap()
11377 .size
11378 .width;
11379
11380 let snapshot = self.snapshot(cx);
11381 let scroll_position = snapshot.scroll_position();
11382 let scroll_left = scroll_position.x * em_width;
11383
11384 let start = OffsetUtf16(range_utf16.start).to_display_point(&snapshot);
11385 let x = snapshot.x_for_display_point(start, &text_layout_details) - scroll_left
11386 + self.gutter_dimensions.width;
11387 let y = line_height * (start.row().as_f32() - scroll_position.y);
11388
11389 Some(Bounds {
11390 origin: element_bounds.origin + point(x, y),
11391 size: size(em_width, line_height),
11392 })
11393 }
11394}
11395
11396trait SelectionExt {
11397 fn display_range(&self, map: &DisplaySnapshot) -> Range<DisplayPoint>;
11398 fn spanned_rows(
11399 &self,
11400 include_end_if_at_line_start: bool,
11401 map: &DisplaySnapshot,
11402 ) -> Range<MultiBufferRow>;
11403}
11404
11405impl<T: ToPoint + ToOffset> SelectionExt for Selection<T> {
11406 fn display_range(&self, map: &DisplaySnapshot) -> Range<DisplayPoint> {
11407 let start = self
11408 .start
11409 .to_point(&map.buffer_snapshot)
11410 .to_display_point(map);
11411 let end = self
11412 .end
11413 .to_point(&map.buffer_snapshot)
11414 .to_display_point(map);
11415 if self.reversed {
11416 end..start
11417 } else {
11418 start..end
11419 }
11420 }
11421
11422 fn spanned_rows(
11423 &self,
11424 include_end_if_at_line_start: bool,
11425 map: &DisplaySnapshot,
11426 ) -> Range<MultiBufferRow> {
11427 let start = self.start.to_point(&map.buffer_snapshot);
11428 let mut end = self.end.to_point(&map.buffer_snapshot);
11429 if !include_end_if_at_line_start && start.row != end.row && end.column == 0 {
11430 end.row -= 1;
11431 }
11432
11433 let buffer_start = map.prev_line_boundary(start).0;
11434 let buffer_end = map.next_line_boundary(end).0;
11435 MultiBufferRow(buffer_start.row)..MultiBufferRow(buffer_end.row + 1)
11436 }
11437}
11438
11439impl<T: InvalidationRegion> InvalidationStack<T> {
11440 fn invalidate<S>(&mut self, selections: &[Selection<S>], buffer: &MultiBufferSnapshot)
11441 where
11442 S: Clone + ToOffset,
11443 {
11444 while let Some(region) = self.last() {
11445 let all_selections_inside_invalidation_ranges =
11446 if selections.len() == region.ranges().len() {
11447 selections
11448 .iter()
11449 .zip(region.ranges().iter().map(|r| r.to_offset(buffer)))
11450 .all(|(selection, invalidation_range)| {
11451 let head = selection.head().to_offset(buffer);
11452 invalidation_range.start <= head && invalidation_range.end >= head
11453 })
11454 } else {
11455 false
11456 };
11457
11458 if all_selections_inside_invalidation_ranges {
11459 break;
11460 } else {
11461 self.pop();
11462 }
11463 }
11464 }
11465}
11466
11467impl<T> Default for InvalidationStack<T> {
11468 fn default() -> Self {
11469 Self(Default::default())
11470 }
11471}
11472
11473impl<T> Deref for InvalidationStack<T> {
11474 type Target = Vec<T>;
11475
11476 fn deref(&self) -> &Self::Target {
11477 &self.0
11478 }
11479}
11480
11481impl<T> DerefMut for InvalidationStack<T> {
11482 fn deref_mut(&mut self) -> &mut Self::Target {
11483 &mut self.0
11484 }
11485}
11486
11487impl InvalidationRegion for SnippetState {
11488 fn ranges(&self) -> &[Range<Anchor>] {
11489 &self.ranges[self.active_index]
11490 }
11491}
11492
11493pub fn diagnostic_block_renderer(diagnostic: Diagnostic, _is_valid: bool) -> RenderBlock {
11494 let (text_without_backticks, code_ranges) = highlight_diagnostic_message(&diagnostic);
11495
11496 Box::new(move |cx: &mut BlockContext| {
11497 let group_id: SharedString = cx.block_id.to_string().into();
11498
11499 let mut text_style = cx.text_style().clone();
11500 text_style.color = diagnostic_style(diagnostic.severity, true, cx.theme().status());
11501 let theme_settings = ThemeSettings::get_global(cx);
11502 text_style.font_family = theme_settings.buffer_font.family.clone();
11503 text_style.font_style = theme_settings.buffer_font.style;
11504 text_style.font_features = theme_settings.buffer_font.features.clone();
11505 text_style.font_weight = theme_settings.buffer_font.weight;
11506
11507 let multi_line_diagnostic = diagnostic.message.contains('\n');
11508
11509 let buttons = |diagnostic: &Diagnostic, block_id: usize| {
11510 if multi_line_diagnostic {
11511 v_flex()
11512 } else {
11513 h_flex()
11514 }
11515 .children(diagnostic.is_primary.then(|| {
11516 IconButton::new(("close-block", block_id), IconName::XCircle)
11517 .icon_color(Color::Muted)
11518 .size(ButtonSize::Compact)
11519 .style(ButtonStyle::Transparent)
11520 .visible_on_hover(group_id.clone())
11521 .on_click(move |_click, cx| cx.dispatch_action(Box::new(Cancel)))
11522 .tooltip(|cx| Tooltip::for_action("Close Diagnostics", &Cancel, cx))
11523 }))
11524 .child(
11525 IconButton::new(("copy-block", block_id), IconName::Copy)
11526 .icon_color(Color::Muted)
11527 .size(ButtonSize::Compact)
11528 .style(ButtonStyle::Transparent)
11529 .visible_on_hover(group_id.clone())
11530 .on_click({
11531 let message = diagnostic.message.clone();
11532 move |_click, cx| cx.write_to_clipboard(ClipboardItem::new(message.clone()))
11533 })
11534 .tooltip(|cx| Tooltip::text("Copy diagnostic message", cx)),
11535 )
11536 };
11537
11538 let icon_size = buttons(&diagnostic, cx.block_id)
11539 .into_any_element()
11540 .layout_as_root(AvailableSpace::min_size(), cx);
11541
11542 h_flex()
11543 .id(cx.block_id)
11544 .group(group_id.clone())
11545 .relative()
11546 .size_full()
11547 .pl(cx.gutter_dimensions.width)
11548 .w(cx.max_width + cx.gutter_dimensions.width)
11549 .child(
11550 div()
11551 .flex()
11552 .w(cx.anchor_x - cx.gutter_dimensions.width - icon_size.width)
11553 .flex_shrink(),
11554 )
11555 .child(buttons(&diagnostic, cx.block_id))
11556 .child(div().flex().flex_shrink_0().child(
11557 StyledText::new(text_without_backticks.clone()).with_highlights(
11558 &text_style,
11559 code_ranges.iter().map(|range| {
11560 (
11561 range.clone(),
11562 HighlightStyle {
11563 font_weight: Some(FontWeight::BOLD),
11564 ..Default::default()
11565 },
11566 )
11567 }),
11568 ),
11569 ))
11570 .into_any_element()
11571 })
11572}
11573
11574pub fn highlight_diagnostic_message(diagnostic: &Diagnostic) -> (SharedString, Vec<Range<usize>>) {
11575 let mut text_without_backticks = String::new();
11576 let mut code_ranges = Vec::new();
11577
11578 if let Some(source) = &diagnostic.source {
11579 text_without_backticks.push_str(&source);
11580 code_ranges.push(0..source.len());
11581 text_without_backticks.push_str(": ");
11582 }
11583
11584 let mut prev_offset = 0;
11585 let mut in_code_block = false;
11586 for (ix, _) in diagnostic
11587 .message
11588 .match_indices('`')
11589 .chain([(diagnostic.message.len(), "")])
11590 {
11591 let prev_len = text_without_backticks.len();
11592 text_without_backticks.push_str(&diagnostic.message[prev_offset..ix]);
11593 prev_offset = ix + 1;
11594 if in_code_block {
11595 code_ranges.push(prev_len..text_without_backticks.len());
11596 in_code_block = false;
11597 } else {
11598 in_code_block = true;
11599 }
11600 }
11601
11602 (text_without_backticks.into(), code_ranges)
11603}
11604
11605fn diagnostic_style(severity: DiagnosticSeverity, valid: bool, colors: &StatusColors) -> Hsla {
11606 match (severity, valid) {
11607 (DiagnosticSeverity::ERROR, true) => colors.error,
11608 (DiagnosticSeverity::ERROR, false) => colors.error,
11609 (DiagnosticSeverity::WARNING, true) => colors.warning,
11610 (DiagnosticSeverity::WARNING, false) => colors.warning,
11611 (DiagnosticSeverity::INFORMATION, true) => colors.info,
11612 (DiagnosticSeverity::INFORMATION, false) => colors.info,
11613 (DiagnosticSeverity::HINT, true) => colors.info,
11614 (DiagnosticSeverity::HINT, false) => colors.info,
11615 _ => colors.ignored,
11616 }
11617}
11618
11619pub fn styled_runs_for_code_label<'a>(
11620 label: &'a CodeLabel,
11621 syntax_theme: &'a theme::SyntaxTheme,
11622) -> impl 'a + Iterator<Item = (Range<usize>, HighlightStyle)> {
11623 let fade_out = HighlightStyle {
11624 fade_out: Some(0.35),
11625 ..Default::default()
11626 };
11627
11628 let mut prev_end = label.filter_range.end;
11629 label
11630 .runs
11631 .iter()
11632 .enumerate()
11633 .flat_map(move |(ix, (range, highlight_id))| {
11634 let style = if let Some(style) = highlight_id.style(syntax_theme) {
11635 style
11636 } else {
11637 return Default::default();
11638 };
11639 let mut muted_style = style;
11640 muted_style.highlight(fade_out);
11641
11642 let mut runs = SmallVec::<[(Range<usize>, HighlightStyle); 3]>::new();
11643 if range.start >= label.filter_range.end {
11644 if range.start > prev_end {
11645 runs.push((prev_end..range.start, fade_out));
11646 }
11647 runs.push((range.clone(), muted_style));
11648 } else if range.end <= label.filter_range.end {
11649 runs.push((range.clone(), style));
11650 } else {
11651 runs.push((range.start..label.filter_range.end, style));
11652 runs.push((label.filter_range.end..range.end, muted_style));
11653 }
11654 prev_end = cmp::max(prev_end, range.end);
11655
11656 if ix + 1 == label.runs.len() && label.text.len() > prev_end {
11657 runs.push((prev_end..label.text.len(), fade_out));
11658 }
11659
11660 runs
11661 })
11662}
11663
11664pub(crate) fn split_words(text: &str) -> impl std::iter::Iterator<Item = &str> + '_ {
11665 let mut prev_index = 0;
11666 let mut prev_codepoint: Option<char> = None;
11667 text.char_indices()
11668 .chain([(text.len(), '\0')])
11669 .filter_map(move |(index, codepoint)| {
11670 let prev_codepoint = prev_codepoint.replace(codepoint)?;
11671 let is_boundary = index == text.len()
11672 || !prev_codepoint.is_uppercase() && codepoint.is_uppercase()
11673 || !prev_codepoint.is_alphanumeric() && codepoint.is_alphanumeric();
11674 if is_boundary {
11675 let chunk = &text[prev_index..index];
11676 prev_index = index;
11677 Some(chunk)
11678 } else {
11679 None
11680 }
11681 })
11682}
11683
11684trait RangeToAnchorExt {
11685 fn to_anchors(self, snapshot: &MultiBufferSnapshot) -> Range<Anchor>;
11686}
11687
11688impl<T: ToOffset> RangeToAnchorExt for Range<T> {
11689 fn to_anchors(self, snapshot: &MultiBufferSnapshot) -> Range<Anchor> {
11690 let start_offset = self.start.to_offset(snapshot);
11691 let end_offset = self.end.to_offset(snapshot);
11692 if start_offset == end_offset {
11693 snapshot.anchor_before(start_offset)..snapshot.anchor_before(end_offset)
11694 } else {
11695 snapshot.anchor_after(self.start)..snapshot.anchor_before(self.end)
11696 }
11697 }
11698}
11699
11700pub trait RowExt {
11701 fn as_f32(&self) -> f32;
11702
11703 fn next_row(&self) -> Self;
11704
11705 fn previous_row(&self) -> Self;
11706
11707 fn minus(&self, other: Self) -> u32;
11708}
11709
11710impl RowExt for DisplayRow {
11711 fn as_f32(&self) -> f32 {
11712 self.0 as f32
11713 }
11714
11715 fn next_row(&self) -> Self {
11716 Self(self.0 + 1)
11717 }
11718
11719 fn previous_row(&self) -> Self {
11720 Self(self.0.saturating_sub(1))
11721 }
11722
11723 fn minus(&self, other: Self) -> u32 {
11724 self.0 - other.0
11725 }
11726}
11727
11728impl RowExt for MultiBufferRow {
11729 fn as_f32(&self) -> f32 {
11730 self.0 as f32
11731 }
11732
11733 fn next_row(&self) -> Self {
11734 Self(self.0 + 1)
11735 }
11736
11737 fn previous_row(&self) -> Self {
11738 Self(self.0.saturating_sub(1))
11739 }
11740
11741 fn minus(&self, other: Self) -> u32 {
11742 self.0 - other.0
11743 }
11744}
11745
11746trait RowRangeExt {
11747 type Row;
11748
11749 fn len(&self) -> usize;
11750
11751 fn iter_rows(&self) -> impl DoubleEndedIterator<Item = Self::Row>;
11752}
11753
11754impl RowRangeExt for Range<MultiBufferRow> {
11755 type Row = MultiBufferRow;
11756
11757 fn len(&self) -> usize {
11758 (self.end.0 - self.start.0) as usize
11759 }
11760
11761 fn iter_rows(&self) -> impl DoubleEndedIterator<Item = MultiBufferRow> {
11762 (self.start.0..self.end.0).map(MultiBufferRow)
11763 }
11764}
11765
11766impl RowRangeExt for Range<DisplayRow> {
11767 type Row = DisplayRow;
11768
11769 fn len(&self) -> usize {
11770 (self.end.0 - self.start.0) as usize
11771 }
11772
11773 fn iter_rows(&self) -> impl DoubleEndedIterator<Item = DisplayRow> {
11774 (self.start.0..self.end.0).map(DisplayRow)
11775 }
11776}
11777
11778fn hunk_status(hunk: &DiffHunk<MultiBufferRow>) -> DiffHunkStatus {
11779 if hunk.diff_base_byte_range.is_empty() {
11780 DiffHunkStatus::Added
11781 } else if hunk.associated_range.is_empty() {
11782 DiffHunkStatus::Removed
11783 } else {
11784 DiffHunkStatus::Modified
11785 }
11786}