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::*;
56pub use editor_settings::EditorSettings;
57use element::LineWithInvisibles;
58pub use element::{
59 CursorLayout, EditorElement, HighlightedRange, HighlightedRangeLine, PointForPosition,
60};
61use futures::FutureExt;
62use fuzzy::{StringMatch, StringMatchCandidate};
63use git::blame::GitBlame;
64use git::diff_hunk_to_display;
65use gpui::{
66 div, impl_actions, point, prelude::*, px, relative, size, uniform_list, Action, AnyElement,
67 AppContext, AsyncWindowContext, AvailableSpace, BackgroundExecutor, Bounds, ClipboardItem,
68 Context, DispatchPhase, ElementId, EventEmitter, FocusHandle, FocusableView, FontId, FontStyle,
69 FontWeight, HighlightStyle, Hsla, InteractiveText, KeyContext, Model, MouseButton, PaintQuad,
70 ParentElement, Pixels, Render, SharedString, Size, StrikethroughStyle, Styled, StyledText,
71 Subscription, Task, TextStyle, UnderlineStyle, UniformListScrollHandle, View, ViewContext,
72 ViewInputHandler, VisualContext, WeakView, WhiteSpace, WindowContext,
73};
74use highlight_matching_bracket::refresh_matching_bracket_highlights;
75use hover_popover::{hide_hover, HoverState};
76use hunk_diff::ExpandedHunks;
77pub(crate) use hunk_diff::HunkToExpand;
78use inlay_hint_cache::{InlayHintCache, InlaySplice, InvalidationStrategy};
79pub use inline_completion_provider::*;
80pub use items::MAX_TAB_TITLE_LEN;
81use itertools::Itertools;
82use language::{
83 char_kind,
84 language_settings::{self, all_language_settings, InlayHintSettings},
85 markdown, point_from_lsp, AutoindentMode, BracketPair, Buffer, Capability, CharKind, CodeLabel,
86 CursorShape, Diagnostic, Documentation, IndentKind, IndentSize, Language, OffsetRangeExt,
87 Point, Selection, SelectionGoal, TransactionId,
88};
89use language::{BufferRow, Runnable, RunnableRange};
90use task::{ResolvedTask, TaskTemplate, TaskVariables};
91
92use hover_links::{HoverLink, HoveredLinkState, InlayHighlight};
93use lsp::{DiagnosticSeverity, LanguageServerId};
94use mouse_context_menu::MouseContextMenu;
95use movement::TextLayoutDetails;
96pub use multi_buffer::{
97 Anchor, AnchorRangeExt, ExcerptId, ExcerptRange, MultiBuffer, MultiBufferSnapshot, ToOffset,
98 ToPoint,
99};
100use multi_buffer::{MultiBufferPoint, MultiBufferRow, ToOffsetUtf16};
101use ordered_float::OrderedFloat;
102use parking_lot::{Mutex, RwLock};
103use project::project_settings::{GitGutterSetting, ProjectSettings};
104use project::{
105 CodeAction, Completion, FormatTrigger, Item, Location, Project, ProjectPath,
106 ProjectTransaction, TaskSourceKind, WorktreeId,
107};
108use rand::prelude::*;
109use rpc::{proto::*, ErrorExt};
110use scroll::{Autoscroll, OngoingScroll, ScrollAnchor, ScrollManager, ScrollbarAutoHide};
111use selections_collection::{resolve_multiple, MutableSelectionsCollection, SelectionsCollection};
112use serde::{Deserialize, Serialize};
113use settings::{Settings, SettingsStore};
114use smallvec::SmallVec;
115use snippet::Snippet;
116use std::ops::Not as _;
117use std::{
118 any::TypeId,
119 borrow::Cow,
120 cmp::{self, Ordering, Reverse},
121 mem,
122 num::NonZeroU32,
123 ops::{ControlFlow, Deref, DerefMut, Range, RangeInclusive},
124 path::Path,
125 sync::Arc,
126 time::{Duration, Instant},
127};
128pub use sum_tree::Bias;
129use sum_tree::TreeMap;
130use text::{BufferId, OffsetUtf16, Rope};
131use theme::{
132 observe_buffer_font_size_adjustment, ActiveTheme, PlayerColor, StatusColors, SyntaxTheme,
133 ThemeColors, ThemeSettings,
134};
135use ui::{
136 h_flex, prelude::*, ButtonSize, ButtonStyle, IconButton, IconName, IconSize, ListItem, Popover,
137 Tooltip,
138};
139use util::{defer, maybe, post_inc, RangeExt, ResultExt, TryFutureExt};
140use workspace::item::{ItemHandle, PreviewTabsSettings};
141use workspace::notifications::{DetachAndPromptErr, NotificationId};
142use workspace::{
143 searchable::SearchEvent, ItemNavHistory, SplitDirection, ViewId, Workspace, WorkspaceId,
144};
145use workspace::{OpenInTerminal, OpenTerminal, Toast};
146
147use crate::hover_links::find_url;
148
149pub const DEFAULT_MULTIBUFFER_CONTEXT: u32 = 2;
150const CURSOR_BLINK_INTERVAL: Duration = Duration::from_millis(500);
151const MAX_LINE_LEN: usize = 1024;
152const MIN_NAVIGATION_HISTORY_ROW_DELTA: i64 = 10;
153const MAX_SELECTION_HISTORY_LEN: usize = 1024;
154pub(crate) const CURSORS_VISIBLE_FOR: Duration = Duration::from_millis(2000);
155#[doc(hidden)]
156pub const CODE_ACTIONS_DEBOUNCE_TIMEOUT: Duration = Duration::from_millis(250);
157#[doc(hidden)]
158pub const DOCUMENT_HIGHLIGHTS_DEBOUNCE_TIMEOUT: Duration = Duration::from_millis(75);
159
160pub(crate) const FORMAT_TIMEOUT: Duration = Duration::from_secs(2);
161
162pub fn render_parsed_markdown(
163 element_id: impl Into<ElementId>,
164 parsed: &language::ParsedMarkdown,
165 editor_style: &EditorStyle,
166 workspace: Option<WeakView<Workspace>>,
167 cx: &mut WindowContext,
168) -> InteractiveText {
169 let code_span_background_color = cx
170 .theme()
171 .colors()
172 .editor_document_highlight_read_background;
173
174 let highlights = gpui::combine_highlights(
175 parsed.highlights.iter().filter_map(|(range, highlight)| {
176 let highlight = highlight.to_highlight_style(&editor_style.syntax)?;
177 Some((range.clone(), highlight))
178 }),
179 parsed
180 .regions
181 .iter()
182 .zip(&parsed.region_ranges)
183 .filter_map(|(region, range)| {
184 if region.code {
185 Some((
186 range.clone(),
187 HighlightStyle {
188 background_color: Some(code_span_background_color),
189 ..Default::default()
190 },
191 ))
192 } else {
193 None
194 }
195 }),
196 );
197
198 let mut links = Vec::new();
199 let mut link_ranges = Vec::new();
200 for (range, region) in parsed.region_ranges.iter().zip(&parsed.regions) {
201 if let Some(link) = region.link.clone() {
202 links.push(link);
203 link_ranges.push(range.clone());
204 }
205 }
206
207 InteractiveText::new(
208 element_id,
209 StyledText::new(parsed.text.clone()).with_highlights(&editor_style.text, highlights),
210 )
211 .on_click(link_ranges, move |clicked_range_ix, cx| {
212 match &links[clicked_range_ix] {
213 markdown::Link::Web { url } => cx.open_url(url),
214 markdown::Link::Path { path } => {
215 if let Some(workspace) = &workspace {
216 _ = workspace.update(cx, |workspace, cx| {
217 workspace.open_abs_path(path.clone(), false, cx).detach();
218 });
219 }
220 }
221 }
222 })
223}
224
225#[derive(Clone, Copy, Debug, PartialEq, Eq, PartialOrd, Ord, Hash)]
226pub(crate) enum InlayId {
227 Suggestion(usize),
228 Hint(usize),
229}
230
231impl InlayId {
232 fn id(&self) -> usize {
233 match self {
234 Self::Suggestion(id) => *id,
235 Self::Hint(id) => *id,
236 }
237 }
238}
239
240enum DiffRowHighlight {}
241enum DocumentHighlightRead {}
242enum DocumentHighlightWrite {}
243enum InputComposition {}
244
245#[derive(Copy, Clone, PartialEq, Eq)]
246pub enum Direction {
247 Prev,
248 Next,
249}
250
251pub fn init_settings(cx: &mut AppContext) {
252 EditorSettings::register(cx);
253}
254
255pub fn init(cx: &mut AppContext) {
256 init_settings(cx);
257
258 workspace::register_project_item::<Editor>(cx);
259 workspace::register_followable_item::<Editor>(cx);
260 workspace::register_deserializable_item::<Editor>(cx);
261 cx.observe_new_views(
262 |workspace: &mut Workspace, _cx: &mut ViewContext<Workspace>| {
263 workspace.register_action(Editor::new_file);
264 workspace.register_action(Editor::new_file_in_direction);
265 },
266 )
267 .detach();
268
269 cx.on_action(move |_: &workspace::NewFile, cx| {
270 let app_state = workspace::AppState::global(cx);
271 if let Some(app_state) = app_state.upgrade() {
272 workspace::open_new(app_state, cx, |workspace, cx| {
273 Editor::new_file(workspace, &Default::default(), cx)
274 })
275 .detach();
276 }
277 });
278 cx.on_action(move |_: &workspace::NewWindow, cx| {
279 let app_state = workspace::AppState::global(cx);
280 if let Some(app_state) = app_state.upgrade() {
281 workspace::open_new(app_state, cx, |workspace, cx| {
282 Editor::new_file(workspace, &Default::default(), cx)
283 })
284 .detach();
285 }
286 });
287}
288
289pub struct SearchWithinRange;
290
291trait InvalidationRegion {
292 fn ranges(&self) -> &[Range<Anchor>];
293}
294
295#[derive(Clone, Debug, PartialEq)]
296pub enum SelectPhase {
297 Begin {
298 position: DisplayPoint,
299 add: bool,
300 click_count: usize,
301 },
302 BeginColumnar {
303 position: DisplayPoint,
304 goal_column: u32,
305 },
306 Extend {
307 position: DisplayPoint,
308 click_count: usize,
309 },
310 Update {
311 position: DisplayPoint,
312 goal_column: u32,
313 scroll_delta: gpui::Point<f32>,
314 },
315 End,
316}
317
318#[derive(Clone, Debug)]
319pub enum SelectMode {
320 Character,
321 Word(Range<Anchor>),
322 Line(Range<Anchor>),
323 All,
324}
325
326#[derive(Copy, Clone, PartialEq, Eq, Debug)]
327pub enum EditorMode {
328 SingleLine,
329 AutoHeight { max_lines: usize },
330 Full,
331}
332
333#[derive(Clone, Debug)]
334pub enum SoftWrap {
335 None,
336 PreferLine,
337 EditorWidth,
338 Column(u32),
339}
340
341#[derive(Clone)]
342pub struct EditorStyle {
343 pub background: Hsla,
344 pub local_player: PlayerColor,
345 pub text: TextStyle,
346 pub scrollbar_width: Pixels,
347 pub syntax: Arc<SyntaxTheme>,
348 pub status: StatusColors,
349 pub inlay_hints_style: HighlightStyle,
350 pub suggestions_style: HighlightStyle,
351}
352
353impl Default for EditorStyle {
354 fn default() -> Self {
355 Self {
356 background: Hsla::default(),
357 local_player: PlayerColor::default(),
358 text: TextStyle::default(),
359 scrollbar_width: Pixels::default(),
360 syntax: Default::default(),
361 // HACK: Status colors don't have a real default.
362 // We should look into removing the status colors from the editor
363 // style and retrieve them directly from the theme.
364 status: StatusColors::dark(),
365 inlay_hints_style: HighlightStyle::default(),
366 suggestions_style: HighlightStyle::default(),
367 }
368 }
369}
370
371type CompletionId = usize;
372
373// type GetFieldEditorTheme = dyn Fn(&theme::Theme) -> theme::FieldEditor;
374// type OverrideTextStyle = dyn Fn(&EditorStyle) -> Option<HighlightStyle>;
375
376type BackgroundHighlight = (fn(&ThemeColors) -> Hsla, Arc<[Range<Anchor>]>);
377
378struct ScrollbarMarkerState {
379 scrollbar_size: Size<Pixels>,
380 dirty: bool,
381 markers: Arc<[PaintQuad]>,
382 pending_refresh: Option<Task<Result<()>>>,
383}
384
385impl ScrollbarMarkerState {
386 fn should_refresh(&self, scrollbar_size: Size<Pixels>) -> bool {
387 self.pending_refresh.is_none() && (self.scrollbar_size != scrollbar_size || self.dirty)
388 }
389}
390
391impl Default for ScrollbarMarkerState {
392 fn default() -> Self {
393 Self {
394 scrollbar_size: Size::default(),
395 dirty: false,
396 markers: Arc::from([]),
397 pending_refresh: None,
398 }
399 }
400}
401
402#[derive(Clone, Debug)]
403struct RunnableTasks {
404 templates: Vec<(TaskSourceKind, TaskTemplate)>,
405 // We need the column at which the task context evaluation should take place.
406 column: u32,
407 extra_variables: HashMap<String, String>,
408}
409
410#[derive(Clone)]
411struct ResolvedTasks {
412 templates: SmallVec<[(TaskSourceKind, ResolvedTask); 1]>,
413 position: Anchor,
414}
415
416/// Zed's primary text input `View`, allowing users to edit a [`MultiBuffer`]
417///
418/// See the [module level documentation](self) for more information.
419pub struct Editor {
420 focus_handle: FocusHandle,
421 /// The text buffer being edited
422 buffer: Model<MultiBuffer>,
423 /// Map of how text in the buffer should be displayed.
424 /// Handles soft wraps, folds, fake inlay text insertions, etc.
425 pub display_map: Model<DisplayMap>,
426 pub selections: SelectionsCollection,
427 pub scroll_manager: ScrollManager,
428 columnar_selection_tail: Option<Anchor>,
429 add_selections_state: Option<AddSelectionsState>,
430 select_next_state: Option<SelectNextState>,
431 select_prev_state: Option<SelectNextState>,
432 selection_history: SelectionHistory,
433 autoclose_regions: Vec<AutocloseRegion>,
434 snippet_stack: InvalidationStack<SnippetState>,
435 select_larger_syntax_node_stack: Vec<Box<[Selection<usize>]>>,
436 ime_transaction: Option<TransactionId>,
437 active_diagnostics: Option<ActiveDiagnosticGroup>,
438 soft_wrap_mode_override: Option<language_settings::SoftWrap>,
439 project: Option<Model<Project>>,
440 completion_provider: Option<Box<dyn CompletionProvider>>,
441 collaboration_hub: Option<Box<dyn CollaborationHub>>,
442 blink_manager: Model<BlinkManager>,
443 show_cursor_names: bool,
444 hovered_cursors: HashMap<HoveredCursor, Task<()>>,
445 pub show_local_selections: bool,
446 mode: EditorMode,
447 show_breadcrumbs: bool,
448 show_gutter: bool,
449 show_wrap_guides: Option<bool>,
450 placeholder_text: Option<Arc<str>>,
451 highlight_order: usize,
452 highlighted_rows: HashMap<TypeId, Vec<(usize, RangeInclusive<Anchor>, Option<Hsla>)>>,
453 background_highlights: TreeMap<TypeId, BackgroundHighlight>,
454 scrollbar_marker_state: ScrollbarMarkerState,
455 nav_history: Option<ItemNavHistory>,
456 context_menu: RwLock<Option<ContextMenu>>,
457 mouse_context_menu: Option<MouseContextMenu>,
458 completion_tasks: Vec<(CompletionId, Task<Option<()>>)>,
459 find_all_references_task_sources: Vec<Anchor>,
460 next_completion_id: CompletionId,
461 completion_documentation_pre_resolve_debounce: DebouncedDelay,
462 available_code_actions: Option<(Location, Arc<[CodeAction]>)>,
463 code_actions_task: Option<Task<()>>,
464 document_highlights_task: Option<Task<()>>,
465 pending_rename: Option<RenameState>,
466 searchable: bool,
467 cursor_shape: CursorShape,
468 collapse_matches: bool,
469 autoindent_mode: Option<AutoindentMode>,
470 workspace: Option<(WeakView<Workspace>, WorkspaceId)>,
471 keymap_context_layers: BTreeMap<TypeId, KeyContext>,
472 input_enabled: bool,
473 use_modal_editing: bool,
474 read_only: bool,
475 leader_peer_id: Option<PeerId>,
476 remote_id: Option<ViewId>,
477 hover_state: HoverState,
478 gutter_hovered: bool,
479 hovered_link_state: Option<HoveredLinkState>,
480 inline_completion_provider: Option<RegisteredInlineCompletionProvider>,
481 active_inline_completion: Option<Inlay>,
482 show_inline_completions: bool,
483 inlay_hint_cache: InlayHintCache,
484 expanded_hunks: ExpandedHunks,
485 next_inlay_id: usize,
486 _subscriptions: Vec<Subscription>,
487 pixel_position_of_newest_cursor: Option<gpui::Point<Pixels>>,
488 gutter_dimensions: GutterDimensions,
489 pub vim_replace_map: HashMap<Range<usize>, String>,
490 style: Option<EditorStyle>,
491 editor_actions: Vec<Box<dyn Fn(&mut ViewContext<Self>)>>,
492 use_autoclose: bool,
493 auto_replace_emoji_shortcode: bool,
494 show_git_blame_gutter: bool,
495 show_git_blame_inline: bool,
496 show_git_blame_inline_delay_task: Option<Task<()>>,
497 git_blame_inline_enabled: bool,
498 blame: Option<Model<GitBlame>>,
499 blame_subscription: Option<Subscription>,
500 custom_context_menu: Option<
501 Box<
502 dyn 'static
503 + Fn(&mut Self, DisplayPoint, &mut ViewContext<Self>) -> Option<View<ui::ContextMenu>>,
504 >,
505 >,
506 last_bounds: Option<Bounds<Pixels>>,
507 expect_bounds_change: Option<Bounds<Pixels>>,
508 tasks: HashMap<(BufferId, BufferRow), (usize, RunnableTasks)>,
509 tasks_update_task: Option<Task<()>>,
510}
511
512#[derive(Clone)]
513pub struct EditorSnapshot {
514 pub mode: EditorMode,
515 show_gutter: bool,
516 render_git_blame_gutter: bool,
517 pub display_snapshot: DisplaySnapshot,
518 pub placeholder_text: Option<Arc<str>>,
519 is_focused: bool,
520 scroll_anchor: ScrollAnchor,
521 ongoing_scroll: OngoingScroll,
522}
523
524const GIT_BLAME_GUTTER_WIDTH_CHARS: f32 = 53.;
525
526#[derive(Debug, Clone, Copy)]
527pub struct GutterDimensions {
528 pub left_padding: Pixels,
529 pub right_padding: Pixels,
530 pub width: Pixels,
531 pub margin: Pixels,
532 pub git_blame_entries_width: Option<Pixels>,
533}
534
535impl Default for GutterDimensions {
536 fn default() -> Self {
537 Self {
538 left_padding: Pixels::ZERO,
539 right_padding: Pixels::ZERO,
540 width: Pixels::ZERO,
541 margin: Pixels::ZERO,
542 git_blame_entries_width: None,
543 }
544 }
545}
546
547#[derive(Debug)]
548pub struct RemoteSelection {
549 pub replica_id: ReplicaId,
550 pub selection: Selection<Anchor>,
551 pub cursor_shape: CursorShape,
552 pub peer_id: PeerId,
553 pub line_mode: bool,
554 pub participant_index: Option<ParticipantIndex>,
555 pub user_name: Option<SharedString>,
556}
557
558#[derive(Clone, Debug)]
559struct SelectionHistoryEntry {
560 selections: Arc<[Selection<Anchor>]>,
561 select_next_state: Option<SelectNextState>,
562 select_prev_state: Option<SelectNextState>,
563 add_selections_state: Option<AddSelectionsState>,
564}
565
566enum SelectionHistoryMode {
567 Normal,
568 Undoing,
569 Redoing,
570}
571
572#[derive(Clone, PartialEq, Eq, Hash)]
573struct HoveredCursor {
574 replica_id: u16,
575 selection_id: usize,
576}
577
578impl Default for SelectionHistoryMode {
579 fn default() -> Self {
580 Self::Normal
581 }
582}
583
584#[derive(Default)]
585struct SelectionHistory {
586 #[allow(clippy::type_complexity)]
587 selections_by_transaction:
588 HashMap<TransactionId, (Arc<[Selection<Anchor>]>, Option<Arc<[Selection<Anchor>]>>)>,
589 mode: SelectionHistoryMode,
590 undo_stack: VecDeque<SelectionHistoryEntry>,
591 redo_stack: VecDeque<SelectionHistoryEntry>,
592}
593
594impl SelectionHistory {
595 fn insert_transaction(
596 &mut self,
597 transaction_id: TransactionId,
598 selections: Arc<[Selection<Anchor>]>,
599 ) {
600 self.selections_by_transaction
601 .insert(transaction_id, (selections, None));
602 }
603
604 #[allow(clippy::type_complexity)]
605 fn transaction(
606 &self,
607 transaction_id: TransactionId,
608 ) -> Option<&(Arc<[Selection<Anchor>]>, Option<Arc<[Selection<Anchor>]>>)> {
609 self.selections_by_transaction.get(&transaction_id)
610 }
611
612 #[allow(clippy::type_complexity)]
613 fn transaction_mut(
614 &mut self,
615 transaction_id: TransactionId,
616 ) -> Option<&mut (Arc<[Selection<Anchor>]>, Option<Arc<[Selection<Anchor>]>>)> {
617 self.selections_by_transaction.get_mut(&transaction_id)
618 }
619
620 fn push(&mut self, entry: SelectionHistoryEntry) {
621 if !entry.selections.is_empty() {
622 match self.mode {
623 SelectionHistoryMode::Normal => {
624 self.push_undo(entry);
625 self.redo_stack.clear();
626 }
627 SelectionHistoryMode::Undoing => self.push_redo(entry),
628 SelectionHistoryMode::Redoing => self.push_undo(entry),
629 }
630 }
631 }
632
633 fn push_undo(&mut self, entry: SelectionHistoryEntry) {
634 if self
635 .undo_stack
636 .back()
637 .map_or(true, |e| e.selections != entry.selections)
638 {
639 self.undo_stack.push_back(entry);
640 if self.undo_stack.len() > MAX_SELECTION_HISTORY_LEN {
641 self.undo_stack.pop_front();
642 }
643 }
644 }
645
646 fn push_redo(&mut self, entry: SelectionHistoryEntry) {
647 if self
648 .redo_stack
649 .back()
650 .map_or(true, |e| e.selections != entry.selections)
651 {
652 self.redo_stack.push_back(entry);
653 if self.redo_stack.len() > MAX_SELECTION_HISTORY_LEN {
654 self.redo_stack.pop_front();
655 }
656 }
657 }
658}
659
660#[derive(Clone, Debug)]
661struct AddSelectionsState {
662 above: bool,
663 stack: Vec<usize>,
664}
665
666#[derive(Clone)]
667struct SelectNextState {
668 query: AhoCorasick,
669 wordwise: bool,
670 done: bool,
671}
672
673impl std::fmt::Debug for SelectNextState {
674 fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
675 f.debug_struct(std::any::type_name::<Self>())
676 .field("wordwise", &self.wordwise)
677 .field("done", &self.done)
678 .finish()
679 }
680}
681
682#[derive(Debug)]
683struct AutocloseRegion {
684 selection_id: usize,
685 range: Range<Anchor>,
686 pair: BracketPair,
687}
688
689#[derive(Debug)]
690struct SnippetState {
691 ranges: Vec<Vec<Range<Anchor>>>,
692 active_index: usize,
693}
694
695#[doc(hidden)]
696pub struct RenameState {
697 pub range: Range<Anchor>,
698 pub old_name: Arc<str>,
699 pub editor: View<Editor>,
700 block_id: BlockId,
701}
702
703struct InvalidationStack<T>(Vec<T>);
704
705struct RegisteredInlineCompletionProvider {
706 provider: Arc<dyn InlineCompletionProviderHandle>,
707 _subscription: Subscription,
708}
709
710enum ContextMenu {
711 Completions(CompletionsMenu),
712 CodeActions(CodeActionsMenu),
713}
714
715impl ContextMenu {
716 fn select_first(
717 &mut self,
718 project: Option<&Model<Project>>,
719 cx: &mut ViewContext<Editor>,
720 ) -> bool {
721 if self.visible() {
722 match self {
723 ContextMenu::Completions(menu) => menu.select_first(project, cx),
724 ContextMenu::CodeActions(menu) => menu.select_first(cx),
725 }
726 true
727 } else {
728 false
729 }
730 }
731
732 fn select_prev(
733 &mut self,
734 project: Option<&Model<Project>>,
735 cx: &mut ViewContext<Editor>,
736 ) -> bool {
737 if self.visible() {
738 match self {
739 ContextMenu::Completions(menu) => menu.select_prev(project, cx),
740 ContextMenu::CodeActions(menu) => menu.select_prev(cx),
741 }
742 true
743 } else {
744 false
745 }
746 }
747
748 fn select_next(
749 &mut self,
750 project: Option<&Model<Project>>,
751 cx: &mut ViewContext<Editor>,
752 ) -> bool {
753 if self.visible() {
754 match self {
755 ContextMenu::Completions(menu) => menu.select_next(project, cx),
756 ContextMenu::CodeActions(menu) => menu.select_next(cx),
757 }
758 true
759 } else {
760 false
761 }
762 }
763
764 fn select_last(
765 &mut self,
766 project: Option<&Model<Project>>,
767 cx: &mut ViewContext<Editor>,
768 ) -> bool {
769 if self.visible() {
770 match self {
771 ContextMenu::Completions(menu) => menu.select_last(project, cx),
772 ContextMenu::CodeActions(menu) => menu.select_last(cx),
773 }
774 true
775 } else {
776 false
777 }
778 }
779
780 fn visible(&self) -> bool {
781 match self {
782 ContextMenu::Completions(menu) => menu.visible(),
783 ContextMenu::CodeActions(menu) => menu.visible(),
784 }
785 }
786
787 fn render(
788 &self,
789 cursor_position: DisplayPoint,
790 style: &EditorStyle,
791 max_height: Pixels,
792 workspace: Option<WeakView<Workspace>>,
793 cx: &mut ViewContext<Editor>,
794 ) -> (ContextMenuOrigin, AnyElement) {
795 match self {
796 ContextMenu::Completions(menu) => (
797 ContextMenuOrigin::EditorPoint(cursor_position),
798 menu.render(style, max_height, workspace, cx),
799 ),
800 ContextMenu::CodeActions(menu) => menu.render(cursor_position, style, max_height, cx),
801 }
802 }
803}
804
805enum ContextMenuOrigin {
806 EditorPoint(DisplayPoint),
807 GutterIndicator(DisplayRow),
808}
809
810#[derive(Clone)]
811struct CompletionsMenu {
812 id: CompletionId,
813 initial_position: Anchor,
814 buffer: Model<Buffer>,
815 completions: Arc<RwLock<Box<[Completion]>>>,
816 match_candidates: Arc<[StringMatchCandidate]>,
817 matches: Arc<[StringMatch]>,
818 selected_item: usize,
819 scroll_handle: UniformListScrollHandle,
820 selected_completion_documentation_resolve_debounce: Arc<Mutex<DebouncedDelay>>,
821}
822
823impl CompletionsMenu {
824 fn select_first(&mut self, project: Option<&Model<Project>>, cx: &mut ViewContext<Editor>) {
825 self.selected_item = 0;
826 self.scroll_handle.scroll_to_item(self.selected_item);
827 self.attempt_resolve_selected_completion_documentation(project, cx);
828 cx.notify();
829 }
830
831 fn select_prev(&mut self, project: Option<&Model<Project>>, cx: &mut ViewContext<Editor>) {
832 if self.selected_item > 0 {
833 self.selected_item -= 1;
834 } else {
835 self.selected_item = self.matches.len() - 1;
836 }
837 self.scroll_handle.scroll_to_item(self.selected_item);
838 self.attempt_resolve_selected_completion_documentation(project, cx);
839 cx.notify();
840 }
841
842 fn select_next(&mut self, project: Option<&Model<Project>>, cx: &mut ViewContext<Editor>) {
843 if self.selected_item + 1 < self.matches.len() {
844 self.selected_item += 1;
845 } else {
846 self.selected_item = 0;
847 }
848 self.scroll_handle.scroll_to_item(self.selected_item);
849 self.attempt_resolve_selected_completion_documentation(project, cx);
850 cx.notify();
851 }
852
853 fn select_last(&mut self, project: Option<&Model<Project>>, cx: &mut ViewContext<Editor>) {
854 self.selected_item = self.matches.len() - 1;
855 self.scroll_handle.scroll_to_item(self.selected_item);
856 self.attempt_resolve_selected_completion_documentation(project, cx);
857 cx.notify();
858 }
859
860 fn pre_resolve_completion_documentation(
861 buffer: Model<Buffer>,
862 completions: Arc<RwLock<Box<[Completion]>>>,
863 matches: Arc<[StringMatch]>,
864 editor: &Editor,
865 cx: &mut ViewContext<Editor>,
866 ) -> Task<()> {
867 let settings = EditorSettings::get_global(cx);
868 if !settings.show_completion_documentation {
869 return Task::ready(());
870 }
871
872 let Some(provider) = editor.completion_provider.as_ref() else {
873 return Task::ready(());
874 };
875
876 let resolve_task = provider.resolve_completions(
877 buffer,
878 matches.iter().map(|m| m.candidate_id).collect(),
879 completions.clone(),
880 cx,
881 );
882
883 return cx.spawn(move |this, mut cx| async move {
884 if let Some(true) = resolve_task.await.log_err() {
885 this.update(&mut cx, |_, cx| cx.notify()).ok();
886 }
887 });
888 }
889
890 fn attempt_resolve_selected_completion_documentation(
891 &mut self,
892 project: Option<&Model<Project>>,
893 cx: &mut ViewContext<Editor>,
894 ) {
895 let settings = EditorSettings::get_global(cx);
896 if !settings.show_completion_documentation {
897 return;
898 }
899
900 let completion_index = self.matches[self.selected_item].candidate_id;
901 let Some(project) = project else {
902 return;
903 };
904
905 let resolve_task = project.update(cx, |project, cx| {
906 project.resolve_completions(
907 self.buffer.clone(),
908 vec![completion_index],
909 self.completions.clone(),
910 cx,
911 )
912 });
913
914 let delay_ms =
915 EditorSettings::get_global(cx).completion_documentation_secondary_query_debounce;
916 let delay = Duration::from_millis(delay_ms);
917
918 self.selected_completion_documentation_resolve_debounce
919 .lock()
920 .fire_new(delay, cx, |_, cx| {
921 cx.spawn(move |this, mut cx| async move {
922 if let Some(true) = resolve_task.await.log_err() {
923 this.update(&mut cx, |_, cx| cx.notify()).ok();
924 }
925 })
926 });
927 }
928
929 fn visible(&self) -> bool {
930 !self.matches.is_empty()
931 }
932
933 fn render(
934 &self,
935 style: &EditorStyle,
936 max_height: Pixels,
937 workspace: Option<WeakView<Workspace>>,
938 cx: &mut ViewContext<Editor>,
939 ) -> AnyElement {
940 let settings = EditorSettings::get_global(cx);
941 let show_completion_documentation = settings.show_completion_documentation;
942
943 let widest_completion_ix = self
944 .matches
945 .iter()
946 .enumerate()
947 .max_by_key(|(_, mat)| {
948 let completions = self.completions.read();
949 let completion = &completions[mat.candidate_id];
950 let documentation = &completion.documentation;
951
952 let mut len = completion.label.text.chars().count();
953 if let Some(Documentation::SingleLine(text)) = documentation {
954 if show_completion_documentation {
955 len += text.chars().count();
956 }
957 }
958
959 len
960 })
961 .map(|(ix, _)| ix);
962
963 let completions = self.completions.clone();
964 let matches = self.matches.clone();
965 let selected_item = self.selected_item;
966 let style = style.clone();
967
968 let multiline_docs = if show_completion_documentation {
969 let mat = &self.matches[selected_item];
970 let multiline_docs = match &self.completions.read()[mat.candidate_id].documentation {
971 Some(Documentation::MultiLinePlainText(text)) => {
972 Some(div().child(SharedString::from(text.clone())))
973 }
974 Some(Documentation::MultiLineMarkdown(parsed)) if !parsed.text.is_empty() => {
975 Some(div().child(render_parsed_markdown(
976 "completions_markdown",
977 parsed,
978 &style,
979 workspace,
980 cx,
981 )))
982 }
983 _ => None,
984 };
985 multiline_docs.map(|div| {
986 div.id("multiline_docs")
987 .max_h(max_height)
988 .flex_1()
989 .px_1p5()
990 .py_1()
991 .min_w(px(260.))
992 .max_w(px(640.))
993 .w(px(500.))
994 .overflow_y_scroll()
995 .occlude()
996 })
997 } else {
998 None
999 };
1000
1001 let list = uniform_list(
1002 cx.view().clone(),
1003 "completions",
1004 matches.len(),
1005 move |_editor, range, cx| {
1006 let start_ix = range.start;
1007 let completions_guard = completions.read();
1008
1009 matches[range]
1010 .iter()
1011 .enumerate()
1012 .map(|(ix, mat)| {
1013 let item_ix = start_ix + ix;
1014 let candidate_id = mat.candidate_id;
1015 let completion = &completions_guard[candidate_id];
1016
1017 let documentation = if show_completion_documentation {
1018 &completion.documentation
1019 } else {
1020 &None
1021 };
1022
1023 let highlights = gpui::combine_highlights(
1024 mat.ranges().map(|range| (range, FontWeight::BOLD.into())),
1025 styled_runs_for_code_label(&completion.label, &style.syntax).map(
1026 |(range, mut highlight)| {
1027 // Ignore font weight for syntax highlighting, as we'll use it
1028 // for fuzzy matches.
1029 highlight.font_weight = None;
1030
1031 if completion.lsp_completion.deprecated.unwrap_or(false) {
1032 highlight.strikethrough = Some(StrikethroughStyle {
1033 thickness: 1.0.into(),
1034 ..Default::default()
1035 });
1036 highlight.color = Some(cx.theme().colors().text_muted);
1037 }
1038
1039 (range, highlight)
1040 },
1041 ),
1042 );
1043 let completion_label = StyledText::new(completion.label.text.clone())
1044 .with_highlights(&style.text, highlights);
1045 let documentation_label =
1046 if let Some(Documentation::SingleLine(text)) = documentation {
1047 if text.trim().is_empty() {
1048 None
1049 } else {
1050 Some(
1051 h_flex().ml_4().child(
1052 Label::new(text.clone())
1053 .size(LabelSize::Small)
1054 .color(Color::Muted),
1055 ),
1056 )
1057 }
1058 } else {
1059 None
1060 };
1061
1062 div().min_w(px(220.)).max_w(px(540.)).child(
1063 ListItem::new(mat.candidate_id)
1064 .inset(true)
1065 .selected(item_ix == selected_item)
1066 .on_click(cx.listener(move |editor, _event, cx| {
1067 cx.stop_propagation();
1068 if let Some(task) = editor.confirm_completion(
1069 &ConfirmCompletion {
1070 item_ix: Some(item_ix),
1071 },
1072 cx,
1073 ) {
1074 task.detach_and_log_err(cx)
1075 }
1076 }))
1077 .child(h_flex().overflow_hidden().child(completion_label))
1078 .end_slot::<Div>(documentation_label),
1079 )
1080 })
1081 .collect()
1082 },
1083 )
1084 .occlude()
1085 .max_h(max_height)
1086 .track_scroll(self.scroll_handle.clone())
1087 .with_width_from_item(widest_completion_ix);
1088
1089 Popover::new()
1090 .child(list)
1091 .when_some(multiline_docs, |popover, multiline_docs| {
1092 popover.aside(multiline_docs)
1093 })
1094 .into_any_element()
1095 }
1096
1097 pub async fn filter(&mut self, query: Option<&str>, executor: BackgroundExecutor) {
1098 let mut matches = if let Some(query) = query {
1099 fuzzy::match_strings(
1100 &self.match_candidates,
1101 query,
1102 query.chars().any(|c| c.is_uppercase()),
1103 100,
1104 &Default::default(),
1105 executor,
1106 )
1107 .await
1108 } else {
1109 self.match_candidates
1110 .iter()
1111 .enumerate()
1112 .map(|(candidate_id, candidate)| StringMatch {
1113 candidate_id,
1114 score: Default::default(),
1115 positions: Default::default(),
1116 string: candidate.string.clone(),
1117 })
1118 .collect()
1119 };
1120
1121 // Remove all candidates where the query's start does not match the start of any word in the candidate
1122 if let Some(query) = query {
1123 if let Some(query_start) = query.chars().next() {
1124 matches.retain(|string_match| {
1125 split_words(&string_match.string).any(|word| {
1126 // Check that the first codepoint of the word as lowercase matches the first
1127 // codepoint of the query as lowercase
1128 word.chars()
1129 .flat_map(|codepoint| codepoint.to_lowercase())
1130 .zip(query_start.to_lowercase())
1131 .all(|(word_cp, query_cp)| word_cp == query_cp)
1132 })
1133 });
1134 }
1135 }
1136
1137 let completions = self.completions.read();
1138 matches.sort_unstable_by_key(|mat| {
1139 // We do want to strike a balance here between what the language server tells us
1140 // to sort by (the sort_text) and what are "obvious" good matches (i.e. when you type
1141 // `Creat` and there is a local variable called `CreateComponent`).
1142 // So what we do is: we bucket all matches into two buckets
1143 // - Strong matches
1144 // - Weak matches
1145 // Strong matches are the ones with a high fuzzy-matcher score (the "obvious" matches)
1146 // and the Weak matches are the rest.
1147 //
1148 // For the strong matches, we sort by the language-servers score first and for the weak
1149 // matches, we prefer our fuzzy finder first.
1150 //
1151 // The thinking behind that: it's useless to take the sort_text the language-server gives
1152 // us into account when it's obviously a bad match.
1153
1154 #[derive(PartialEq, Eq, PartialOrd, Ord)]
1155 enum MatchScore<'a> {
1156 Strong {
1157 sort_text: Option<&'a str>,
1158 score: Reverse<OrderedFloat<f64>>,
1159 sort_key: (usize, &'a str),
1160 },
1161 Weak {
1162 score: Reverse<OrderedFloat<f64>>,
1163 sort_text: Option<&'a str>,
1164 sort_key: (usize, &'a str),
1165 },
1166 }
1167
1168 let completion = &completions[mat.candidate_id];
1169 let sort_key = completion.sort_key();
1170 let sort_text = completion.lsp_completion.sort_text.as_deref();
1171 let score = Reverse(OrderedFloat(mat.score));
1172
1173 if mat.score >= 0.2 {
1174 MatchScore::Strong {
1175 sort_text,
1176 score,
1177 sort_key,
1178 }
1179 } else {
1180 MatchScore::Weak {
1181 score,
1182 sort_text,
1183 sort_key,
1184 }
1185 }
1186 });
1187
1188 for mat in &mut matches {
1189 let completion = &completions[mat.candidate_id];
1190 mat.string.clone_from(&completion.label.text);
1191 for position in &mut mat.positions {
1192 *position += completion.label.filter_range.start;
1193 }
1194 }
1195 drop(completions);
1196
1197 self.matches = matches.into();
1198 self.selected_item = 0;
1199 }
1200}
1201
1202#[derive(Clone)]
1203struct CodeActionContents {
1204 tasks: Option<Arc<ResolvedTasks>>,
1205 actions: Option<Arc<[CodeAction]>>,
1206}
1207
1208impl CodeActionContents {
1209 fn len(&self) -> usize {
1210 match (&self.tasks, &self.actions) {
1211 (Some(tasks), Some(actions)) => actions.len() + tasks.templates.len(),
1212 (Some(tasks), None) => tasks.templates.len(),
1213 (None, Some(actions)) => actions.len(),
1214 (None, None) => 0,
1215 }
1216 }
1217
1218 fn is_empty(&self) -> bool {
1219 match (&self.tasks, &self.actions) {
1220 (Some(tasks), Some(actions)) => actions.is_empty() && tasks.templates.is_empty(),
1221 (Some(tasks), None) => tasks.templates.is_empty(),
1222 (None, Some(actions)) => actions.is_empty(),
1223 (None, None) => true,
1224 }
1225 }
1226
1227 fn iter(&self) -> impl Iterator<Item = CodeActionsItem> + '_ {
1228 self.tasks
1229 .iter()
1230 .flat_map(|tasks| {
1231 tasks
1232 .templates
1233 .iter()
1234 .map(|(kind, task)| CodeActionsItem::Task(kind.clone(), task.clone()))
1235 })
1236 .chain(self.actions.iter().flat_map(|actions| {
1237 actions
1238 .iter()
1239 .map(|action| CodeActionsItem::CodeAction(action.clone()))
1240 }))
1241 }
1242 fn get(&self, index: usize) -> Option<CodeActionsItem> {
1243 match (&self.tasks, &self.actions) {
1244 (Some(tasks), Some(actions)) => {
1245 if index < tasks.templates.len() {
1246 tasks
1247 .templates
1248 .get(index)
1249 .cloned()
1250 .map(|(kind, task)| CodeActionsItem::Task(kind, task))
1251 } else {
1252 actions
1253 .get(index - tasks.templates.len())
1254 .cloned()
1255 .map(CodeActionsItem::CodeAction)
1256 }
1257 }
1258 (Some(tasks), None) => tasks
1259 .templates
1260 .get(index)
1261 .cloned()
1262 .map(|(kind, task)| CodeActionsItem::Task(kind, task)),
1263 (None, Some(actions)) => actions.get(index).cloned().map(CodeActionsItem::CodeAction),
1264 (None, None) => None,
1265 }
1266 }
1267}
1268
1269#[allow(clippy::large_enum_variant)]
1270#[derive(Clone)]
1271enum CodeActionsItem {
1272 Task(TaskSourceKind, ResolvedTask),
1273 CodeAction(CodeAction),
1274}
1275
1276impl CodeActionsItem {
1277 fn as_task(&self) -> Option<&ResolvedTask> {
1278 let Self::Task(_, task) = self else {
1279 return None;
1280 };
1281 Some(task)
1282 }
1283 fn as_code_action(&self) -> Option<&CodeAction> {
1284 let Self::CodeAction(action) = self else {
1285 return None;
1286 };
1287 Some(action)
1288 }
1289 fn label(&self) -> String {
1290 match self {
1291 Self::CodeAction(action) => action.lsp_action.title.clone(),
1292 Self::Task(_, task) => task.resolved_label.clone(),
1293 }
1294 }
1295}
1296
1297struct CodeActionsMenu {
1298 actions: CodeActionContents,
1299 buffer: Model<Buffer>,
1300 selected_item: usize,
1301 scroll_handle: UniformListScrollHandle,
1302 deployed_from_indicator: Option<DisplayRow>,
1303}
1304
1305impl CodeActionsMenu {
1306 fn select_first(&mut self, cx: &mut ViewContext<Editor>) {
1307 self.selected_item = 0;
1308 self.scroll_handle.scroll_to_item(self.selected_item);
1309 cx.notify()
1310 }
1311
1312 fn select_prev(&mut self, cx: &mut ViewContext<Editor>) {
1313 if self.selected_item > 0 {
1314 self.selected_item -= 1;
1315 } else {
1316 self.selected_item = self.actions.len() - 1;
1317 }
1318 self.scroll_handle.scroll_to_item(self.selected_item);
1319 cx.notify();
1320 }
1321
1322 fn select_next(&mut self, cx: &mut ViewContext<Editor>) {
1323 if self.selected_item + 1 < self.actions.len() {
1324 self.selected_item += 1;
1325 } else {
1326 self.selected_item = 0;
1327 }
1328 self.scroll_handle.scroll_to_item(self.selected_item);
1329 cx.notify();
1330 }
1331
1332 fn select_last(&mut self, cx: &mut ViewContext<Editor>) {
1333 self.selected_item = self.actions.len() - 1;
1334 self.scroll_handle.scroll_to_item(self.selected_item);
1335 cx.notify()
1336 }
1337
1338 fn visible(&self) -> bool {
1339 !self.actions.is_empty()
1340 }
1341
1342 fn render(
1343 &self,
1344 cursor_position: DisplayPoint,
1345 _style: &EditorStyle,
1346 max_height: Pixels,
1347 cx: &mut ViewContext<Editor>,
1348 ) -> (ContextMenuOrigin, AnyElement) {
1349 let actions = self.actions.clone();
1350 let selected_item = self.selected_item;
1351 let element = uniform_list(
1352 cx.view().clone(),
1353 "code_actions_menu",
1354 self.actions.len(),
1355 move |_this, range, cx| {
1356 actions
1357 .iter()
1358 .skip(range.start)
1359 .take(range.end - range.start)
1360 .enumerate()
1361 .map(|(ix, action)| {
1362 let item_ix = range.start + ix;
1363 let selected = selected_item == item_ix;
1364 let colors = cx.theme().colors();
1365 div()
1366 .px_2()
1367 .text_color(colors.text)
1368 .when(selected, |style| {
1369 style
1370 .bg(colors.element_active)
1371 .text_color(colors.text_accent)
1372 })
1373 .hover(|style| {
1374 style
1375 .bg(colors.element_hover)
1376 .text_color(colors.text_accent)
1377 })
1378 .whitespace_nowrap()
1379 .when_some(action.as_code_action(), |this, action| {
1380 this.on_mouse_down(
1381 MouseButton::Left,
1382 cx.listener(move |editor, _, cx| {
1383 cx.stop_propagation();
1384 if let Some(task) = editor.confirm_code_action(
1385 &ConfirmCodeAction {
1386 item_ix: Some(item_ix),
1387 },
1388 cx,
1389 ) {
1390 task.detach_and_log_err(cx)
1391 }
1392 }),
1393 )
1394 // TASK: It would be good to make lsp_action.title a SharedString to avoid allocating here.
1395 .child(SharedString::from(action.lsp_action.title.clone()))
1396 })
1397 .when_some(action.as_task(), |this, task| {
1398 this.on_mouse_down(
1399 MouseButton::Left,
1400 cx.listener(move |editor, _, cx| {
1401 cx.stop_propagation();
1402 if let Some(task) = editor.confirm_code_action(
1403 &ConfirmCodeAction {
1404 item_ix: Some(item_ix),
1405 },
1406 cx,
1407 ) {
1408 task.detach_and_log_err(cx)
1409 }
1410 }),
1411 )
1412 .child(SharedString::from(task.resolved_label.clone()))
1413 })
1414 })
1415 .collect()
1416 },
1417 )
1418 .elevation_1(cx)
1419 .px_2()
1420 .py_1()
1421 .max_h(max_height)
1422 .occlude()
1423 .track_scroll(self.scroll_handle.clone())
1424 .with_width_from_item(
1425 self.actions
1426 .iter()
1427 .enumerate()
1428 .max_by_key(|(_, action)| match action {
1429 CodeActionsItem::Task(_, task) => task.resolved_label.chars().count(),
1430 CodeActionsItem::CodeAction(action) => action.lsp_action.title.chars().count(),
1431 })
1432 .map(|(ix, _)| ix),
1433 )
1434 .into_any_element();
1435
1436 let cursor_position = if let Some(row) = self.deployed_from_indicator {
1437 ContextMenuOrigin::GutterIndicator(row)
1438 } else {
1439 ContextMenuOrigin::EditorPoint(cursor_position)
1440 };
1441
1442 (cursor_position, element)
1443 }
1444}
1445
1446#[derive(Debug)]
1447struct ActiveDiagnosticGroup {
1448 primary_range: Range<Anchor>,
1449 primary_message: String,
1450 blocks: HashMap<BlockId, Diagnostic>,
1451 is_valid: bool,
1452}
1453
1454#[derive(Serialize, Deserialize)]
1455pub struct ClipboardSelection {
1456 pub len: usize,
1457 pub is_entire_line: bool,
1458 pub first_line_indent: u32,
1459}
1460
1461#[derive(Debug)]
1462pub(crate) struct NavigationData {
1463 cursor_anchor: Anchor,
1464 cursor_position: Point,
1465 scroll_anchor: ScrollAnchor,
1466 scroll_top_row: u32,
1467}
1468
1469enum GotoDefinitionKind {
1470 Symbol,
1471 Type,
1472 Implementation,
1473}
1474
1475#[derive(Debug, Clone)]
1476enum InlayHintRefreshReason {
1477 Toggle(bool),
1478 SettingsChange(InlayHintSettings),
1479 NewLinesShown,
1480 BufferEdited(HashSet<Arc<Language>>),
1481 RefreshRequested,
1482 ExcerptsRemoved(Vec<ExcerptId>),
1483}
1484
1485impl InlayHintRefreshReason {
1486 fn description(&self) -> &'static str {
1487 match self {
1488 Self::Toggle(_) => "toggle",
1489 Self::SettingsChange(_) => "settings change",
1490 Self::NewLinesShown => "new lines shown",
1491 Self::BufferEdited(_) => "buffer edited",
1492 Self::RefreshRequested => "refresh requested",
1493 Self::ExcerptsRemoved(_) => "excerpts removed",
1494 }
1495 }
1496}
1497
1498impl Editor {
1499 pub fn single_line(cx: &mut ViewContext<Self>) -> Self {
1500 let buffer = cx.new_model(|cx| Buffer::local("", cx));
1501 let buffer = cx.new_model(|cx| MultiBuffer::singleton(buffer, cx));
1502 Self::new(EditorMode::SingleLine, buffer, None, cx)
1503 }
1504
1505 pub fn multi_line(cx: &mut ViewContext<Self>) -> Self {
1506 let buffer = cx.new_model(|cx| Buffer::local("", cx));
1507 let buffer = cx.new_model(|cx| MultiBuffer::singleton(buffer, cx));
1508 Self::new(EditorMode::Full, buffer, None, cx)
1509 }
1510
1511 pub fn auto_height(max_lines: usize, cx: &mut ViewContext<Self>) -> Self {
1512 let buffer = cx.new_model(|cx| Buffer::local("", cx));
1513 let buffer = cx.new_model(|cx| MultiBuffer::singleton(buffer, cx));
1514 Self::new(EditorMode::AutoHeight { max_lines }, buffer, None, cx)
1515 }
1516
1517 pub fn for_buffer(
1518 buffer: Model<Buffer>,
1519 project: Option<Model<Project>>,
1520 cx: &mut ViewContext<Self>,
1521 ) -> Self {
1522 let buffer = cx.new_model(|cx| MultiBuffer::singleton(buffer, cx));
1523 Self::new(EditorMode::Full, buffer, project, cx)
1524 }
1525
1526 pub fn for_multibuffer(
1527 buffer: Model<MultiBuffer>,
1528 project: Option<Model<Project>>,
1529 cx: &mut ViewContext<Self>,
1530 ) -> Self {
1531 Self::new(EditorMode::Full, buffer, project, cx)
1532 }
1533
1534 pub fn clone(&self, cx: &mut ViewContext<Self>) -> Self {
1535 let mut clone = Self::new(self.mode, self.buffer.clone(), self.project.clone(), cx);
1536 self.display_map.update(cx, |display_map, cx| {
1537 let snapshot = display_map.snapshot(cx);
1538 clone.display_map.update(cx, |display_map, cx| {
1539 display_map.set_state(&snapshot, cx);
1540 });
1541 });
1542 clone.selections.clone_state(&self.selections);
1543 clone.scroll_manager.clone_state(&self.scroll_manager);
1544 clone.searchable = self.searchable;
1545 clone
1546 }
1547
1548 fn new(
1549 mode: EditorMode,
1550 buffer: Model<MultiBuffer>,
1551 project: Option<Model<Project>>,
1552 cx: &mut ViewContext<Self>,
1553 ) -> Self {
1554 let style = cx.text_style();
1555 let font_size = style.font_size.to_pixels(cx.rem_size());
1556 let display_map = cx.new_model(|cx| {
1557 DisplayMap::new(buffer.clone(), style.font(), font_size, None, 2, 1, cx)
1558 });
1559
1560 let selections = SelectionsCollection::new(display_map.clone(), buffer.clone());
1561
1562 let blink_manager = cx.new_model(|cx| BlinkManager::new(CURSOR_BLINK_INTERVAL, cx));
1563
1564 let soft_wrap_mode_override =
1565 (mode == EditorMode::SingleLine).then(|| language_settings::SoftWrap::PreferLine);
1566
1567 let mut project_subscriptions = Vec::new();
1568 if mode == EditorMode::Full {
1569 if let Some(project) = project.as_ref() {
1570 if buffer.read(cx).is_singleton() {
1571 project_subscriptions.push(cx.observe(project, |_, _, cx| {
1572 cx.emit(EditorEvent::TitleChanged);
1573 }));
1574 }
1575 project_subscriptions.push(cx.subscribe(project, |editor, _, event, cx| {
1576 if let project::Event::RefreshInlayHints = event {
1577 editor.refresh_inlay_hints(InlayHintRefreshReason::RefreshRequested, cx);
1578 };
1579 }));
1580 }
1581 }
1582
1583 let inlay_hint_settings = inlay_hint_settings(
1584 selections.newest_anchor().head(),
1585 &buffer.read(cx).snapshot(cx),
1586 cx,
1587 );
1588
1589 let focus_handle = cx.focus_handle();
1590 cx.on_focus(&focus_handle, Self::handle_focus).detach();
1591 cx.on_blur(&focus_handle, Self::handle_blur).detach();
1592
1593 let mut this = Self {
1594 focus_handle,
1595 buffer: buffer.clone(),
1596 display_map: display_map.clone(),
1597 selections,
1598 scroll_manager: ScrollManager::new(cx),
1599 columnar_selection_tail: None,
1600 add_selections_state: None,
1601 select_next_state: None,
1602 select_prev_state: None,
1603 selection_history: Default::default(),
1604 autoclose_regions: Default::default(),
1605 snippet_stack: Default::default(),
1606 select_larger_syntax_node_stack: Vec::new(),
1607 ime_transaction: Default::default(),
1608 active_diagnostics: None,
1609 soft_wrap_mode_override,
1610 completion_provider: project.clone().map(|project| Box::new(project) as _),
1611 collaboration_hub: project.clone().map(|project| Box::new(project) as _),
1612 project,
1613 blink_manager: blink_manager.clone(),
1614 show_local_selections: true,
1615 mode,
1616 show_breadcrumbs: EditorSettings::get_global(cx).toolbar.breadcrumbs,
1617 show_gutter: mode == EditorMode::Full,
1618 show_wrap_guides: None,
1619 placeholder_text: None,
1620 highlight_order: 0,
1621 highlighted_rows: HashMap::default(),
1622 background_highlights: Default::default(),
1623 scrollbar_marker_state: ScrollbarMarkerState::default(),
1624 nav_history: None,
1625 context_menu: RwLock::new(None),
1626 mouse_context_menu: None,
1627 completion_tasks: Default::default(),
1628 find_all_references_task_sources: Vec::new(),
1629 next_completion_id: 0,
1630 completion_documentation_pre_resolve_debounce: DebouncedDelay::new(),
1631 next_inlay_id: 0,
1632 available_code_actions: Default::default(),
1633 code_actions_task: Default::default(),
1634 document_highlights_task: Default::default(),
1635 pending_rename: Default::default(),
1636 searchable: true,
1637 cursor_shape: Default::default(),
1638 autoindent_mode: Some(AutoindentMode::EachLine),
1639 collapse_matches: false,
1640 workspace: None,
1641 keymap_context_layers: Default::default(),
1642 input_enabled: true,
1643 use_modal_editing: mode == EditorMode::Full,
1644 read_only: false,
1645 use_autoclose: true,
1646 auto_replace_emoji_shortcode: false,
1647 leader_peer_id: None,
1648 remote_id: None,
1649 hover_state: Default::default(),
1650 hovered_link_state: Default::default(),
1651 inline_completion_provider: None,
1652 active_inline_completion: None,
1653 inlay_hint_cache: InlayHintCache::new(inlay_hint_settings),
1654 expanded_hunks: ExpandedHunks::default(),
1655 gutter_hovered: false,
1656 pixel_position_of_newest_cursor: None,
1657 last_bounds: None,
1658 expect_bounds_change: None,
1659 gutter_dimensions: GutterDimensions::default(),
1660 style: None,
1661 show_cursor_names: false,
1662 hovered_cursors: Default::default(),
1663 editor_actions: Default::default(),
1664 vim_replace_map: Default::default(),
1665 show_inline_completions: mode == EditorMode::Full,
1666 custom_context_menu: None,
1667 show_git_blame_gutter: false,
1668 show_git_blame_inline: false,
1669 show_git_blame_inline_delay_task: None,
1670 git_blame_inline_enabled: ProjectSettings::get_global(cx).git.inline_blame_enabled(),
1671 blame: None,
1672 blame_subscription: None,
1673 tasks: Default::default(),
1674 _subscriptions: vec![
1675 cx.observe(&buffer, Self::on_buffer_changed),
1676 cx.subscribe(&buffer, Self::on_buffer_event),
1677 cx.observe(&display_map, Self::on_display_map_changed),
1678 cx.observe(&blink_manager, |_, _, cx| cx.notify()),
1679 cx.observe_global::<SettingsStore>(Self::settings_changed),
1680 observe_buffer_font_size_adjustment(cx, |_, cx| cx.notify()),
1681 cx.observe_window_activation(|editor, cx| {
1682 let active = cx.is_window_active();
1683 editor.blink_manager.update(cx, |blink_manager, cx| {
1684 if active {
1685 blink_manager.enable(cx);
1686 } else {
1687 blink_manager.show_cursor(cx);
1688 blink_manager.disable(cx);
1689 }
1690 });
1691 }),
1692 ],
1693 tasks_update_task: None,
1694 };
1695 this.tasks_update_task = Some(this.refresh_runnables(cx));
1696 this._subscriptions.extend(project_subscriptions);
1697
1698 this.end_selection(cx);
1699 this.scroll_manager.show_scrollbar(cx);
1700
1701 if mode == EditorMode::Full {
1702 let should_auto_hide_scrollbars = cx.should_auto_hide_scrollbars();
1703 cx.set_global(ScrollbarAutoHide(should_auto_hide_scrollbars));
1704
1705 if this.git_blame_inline_enabled {
1706 this.git_blame_inline_enabled = true;
1707 this.start_git_blame_inline(false, cx);
1708 }
1709 }
1710
1711 this.report_editor_event("open", None, cx);
1712 this
1713 }
1714
1715 fn key_context(&self, cx: &AppContext) -> KeyContext {
1716 let mut key_context = KeyContext::new_with_defaults();
1717 key_context.add("Editor");
1718 let mode = match self.mode {
1719 EditorMode::SingleLine => "single_line",
1720 EditorMode::AutoHeight { .. } => "auto_height",
1721 EditorMode::Full => "full",
1722 };
1723 key_context.set("mode", mode);
1724 if self.pending_rename.is_some() {
1725 key_context.add("renaming");
1726 }
1727 if self.context_menu_visible() {
1728 match self.context_menu.read().as_ref() {
1729 Some(ContextMenu::Completions(_)) => {
1730 key_context.add("menu");
1731 key_context.add("showing_completions")
1732 }
1733 Some(ContextMenu::CodeActions(_)) => {
1734 key_context.add("menu");
1735 key_context.add("showing_code_actions")
1736 }
1737 None => {}
1738 }
1739 }
1740
1741 for layer in self.keymap_context_layers.values() {
1742 key_context.extend(layer);
1743 }
1744
1745 if let Some(extension) = self
1746 .buffer
1747 .read(cx)
1748 .as_singleton()
1749 .and_then(|buffer| buffer.read(cx).file()?.path().extension()?.to_str())
1750 {
1751 key_context.set("extension", extension.to_string());
1752 }
1753
1754 if self.has_active_inline_completion(cx) {
1755 key_context.add("copilot_suggestion");
1756 key_context.add("inline_completion");
1757 }
1758
1759 key_context
1760 }
1761
1762 pub fn new_file(
1763 workspace: &mut Workspace,
1764 _: &workspace::NewFile,
1765 cx: &mut ViewContext<Workspace>,
1766 ) {
1767 let project = workspace.project().clone();
1768 let create = project.update(cx, |project, cx| project.create_buffer(cx));
1769
1770 cx.spawn(|workspace, mut cx| async move {
1771 let buffer = create.await?;
1772 workspace.update(&mut cx, |workspace, cx| {
1773 workspace.add_item_to_active_pane(
1774 Box::new(
1775 cx.new_view(|cx| Editor::for_buffer(buffer, Some(project.clone()), cx)),
1776 ),
1777 None,
1778 cx,
1779 )
1780 })
1781 })
1782 .detach_and_prompt_err("Failed to create buffer", cx, |e, _| match e.error_code() {
1783 ErrorCode::RemoteUpgradeRequired => Some(format!(
1784 "The remote instance of Zed does not support this yet. It must be upgraded to {}",
1785 e.error_tag("required").unwrap_or("the latest version")
1786 )),
1787 _ => None,
1788 });
1789 }
1790
1791 pub fn new_file_in_direction(
1792 workspace: &mut Workspace,
1793 action: &workspace::NewFileInDirection,
1794 cx: &mut ViewContext<Workspace>,
1795 ) {
1796 let project = workspace.project().clone();
1797 let create = project.update(cx, |project, cx| project.create_buffer(cx));
1798 let direction = action.0;
1799
1800 cx.spawn(|workspace, mut cx| async move {
1801 let buffer = create.await?;
1802 workspace.update(&mut cx, move |workspace, cx| {
1803 workspace.split_item(
1804 direction,
1805 Box::new(
1806 cx.new_view(|cx| Editor::for_buffer(buffer, Some(project.clone()), cx)),
1807 ),
1808 cx,
1809 )
1810 })?;
1811 anyhow::Ok(())
1812 })
1813 .detach_and_prompt_err("Failed to create buffer", cx, |e, _| match e.error_code() {
1814 ErrorCode::RemoteUpgradeRequired => Some(format!(
1815 "The remote instance of Zed does not support this yet. It must be upgraded to {}",
1816 e.error_tag("required").unwrap_or("the latest version")
1817 )),
1818 _ => None,
1819 });
1820 }
1821
1822 pub fn replica_id(&self, cx: &AppContext) -> ReplicaId {
1823 self.buffer.read(cx).replica_id()
1824 }
1825
1826 pub fn leader_peer_id(&self) -> Option<PeerId> {
1827 self.leader_peer_id
1828 }
1829
1830 pub fn buffer(&self) -> &Model<MultiBuffer> {
1831 &self.buffer
1832 }
1833
1834 pub fn workspace(&self) -> Option<View<Workspace>> {
1835 self.workspace.as_ref()?.0.upgrade()
1836 }
1837
1838 pub fn title<'a>(&self, cx: &'a AppContext) -> Cow<'a, str> {
1839 self.buffer().read(cx).title(cx)
1840 }
1841
1842 pub fn snapshot(&mut self, cx: &mut WindowContext) -> EditorSnapshot {
1843 EditorSnapshot {
1844 mode: self.mode,
1845 show_gutter: self.show_gutter,
1846 render_git_blame_gutter: self.render_git_blame_gutter(cx),
1847 display_snapshot: self.display_map.update(cx, |map, cx| map.snapshot(cx)),
1848 scroll_anchor: self.scroll_manager.anchor(),
1849 ongoing_scroll: self.scroll_manager.ongoing_scroll(),
1850 placeholder_text: self.placeholder_text.clone(),
1851 is_focused: self.focus_handle.is_focused(cx),
1852 }
1853 }
1854
1855 pub fn language_at<T: ToOffset>(&self, point: T, cx: &AppContext) -> Option<Arc<Language>> {
1856 self.buffer.read(cx).language_at(point, cx)
1857 }
1858
1859 pub fn file_at<T: ToOffset>(
1860 &self,
1861 point: T,
1862 cx: &AppContext,
1863 ) -> Option<Arc<dyn language::File>> {
1864 self.buffer.read(cx).read(cx).file_at(point).cloned()
1865 }
1866
1867 pub fn active_excerpt(
1868 &self,
1869 cx: &AppContext,
1870 ) -> Option<(ExcerptId, Model<Buffer>, Range<text::Anchor>)> {
1871 self.buffer
1872 .read(cx)
1873 .excerpt_containing(self.selections.newest_anchor().head(), cx)
1874 }
1875
1876 pub fn mode(&self) -> EditorMode {
1877 self.mode
1878 }
1879
1880 pub fn collaboration_hub(&self) -> Option<&dyn CollaborationHub> {
1881 self.collaboration_hub.as_deref()
1882 }
1883
1884 pub fn set_collaboration_hub(&mut self, hub: Box<dyn CollaborationHub>) {
1885 self.collaboration_hub = Some(hub);
1886 }
1887
1888 pub fn set_custom_context_menu(
1889 &mut self,
1890 f: impl 'static
1891 + Fn(&mut Self, DisplayPoint, &mut ViewContext<Self>) -> Option<View<ui::ContextMenu>>,
1892 ) {
1893 self.custom_context_menu = Some(Box::new(f))
1894 }
1895
1896 pub fn set_completion_provider(&mut self, hub: Box<dyn CompletionProvider>) {
1897 self.completion_provider = Some(hub);
1898 }
1899
1900 pub fn set_inline_completion_provider<T>(
1901 &mut self,
1902 provider: Option<Model<T>>,
1903 cx: &mut ViewContext<Self>,
1904 ) where
1905 T: InlineCompletionProvider,
1906 {
1907 self.inline_completion_provider =
1908 provider.map(|provider| RegisteredInlineCompletionProvider {
1909 _subscription: cx.observe(&provider, |this, _, cx| {
1910 if this.focus_handle.is_focused(cx) {
1911 this.update_visible_inline_completion(cx);
1912 }
1913 }),
1914 provider: Arc::new(provider),
1915 });
1916 self.refresh_inline_completion(false, cx);
1917 }
1918
1919 pub fn placeholder_text(&self, _cx: &mut WindowContext) -> Option<&str> {
1920 self.placeholder_text.as_deref()
1921 }
1922
1923 pub fn set_placeholder_text(
1924 &mut self,
1925 placeholder_text: impl Into<Arc<str>>,
1926 cx: &mut ViewContext<Self>,
1927 ) {
1928 let placeholder_text = Some(placeholder_text.into());
1929 if self.placeholder_text != placeholder_text {
1930 self.placeholder_text = placeholder_text;
1931 cx.notify();
1932 }
1933 }
1934
1935 pub fn set_cursor_shape(&mut self, cursor_shape: CursorShape, cx: &mut ViewContext<Self>) {
1936 self.cursor_shape = cursor_shape;
1937 cx.notify();
1938 }
1939
1940 pub fn set_collapse_matches(&mut self, collapse_matches: bool) {
1941 self.collapse_matches = collapse_matches;
1942 }
1943
1944 pub fn range_for_match<T: std::marker::Copy>(&self, range: &Range<T>) -> Range<T> {
1945 if self.collapse_matches {
1946 return range.start..range.start;
1947 }
1948 range.clone()
1949 }
1950
1951 pub fn set_clip_at_line_ends(&mut self, clip: bool, cx: &mut ViewContext<Self>) {
1952 if self.display_map.read(cx).clip_at_line_ends != clip {
1953 self.display_map
1954 .update(cx, |map, _| map.clip_at_line_ends = clip);
1955 }
1956 }
1957
1958 pub fn set_keymap_context_layer<Tag: 'static>(
1959 &mut self,
1960 context: KeyContext,
1961 cx: &mut ViewContext<Self>,
1962 ) {
1963 self.keymap_context_layers
1964 .insert(TypeId::of::<Tag>(), context);
1965 cx.notify();
1966 }
1967
1968 pub fn remove_keymap_context_layer<Tag: 'static>(&mut self, cx: &mut ViewContext<Self>) {
1969 self.keymap_context_layers.remove(&TypeId::of::<Tag>());
1970 cx.notify();
1971 }
1972
1973 pub fn set_input_enabled(&mut self, input_enabled: bool) {
1974 self.input_enabled = input_enabled;
1975 }
1976
1977 pub fn set_autoindent(&mut self, autoindent: bool) {
1978 if autoindent {
1979 self.autoindent_mode = Some(AutoindentMode::EachLine);
1980 } else {
1981 self.autoindent_mode = None;
1982 }
1983 }
1984
1985 pub fn read_only(&self, cx: &AppContext) -> bool {
1986 self.read_only || self.buffer.read(cx).read_only()
1987 }
1988
1989 pub fn set_read_only(&mut self, read_only: bool) {
1990 self.read_only = read_only;
1991 }
1992
1993 pub fn set_use_autoclose(&mut self, autoclose: bool) {
1994 self.use_autoclose = autoclose;
1995 }
1996
1997 pub fn set_auto_replace_emoji_shortcode(&mut self, auto_replace: bool) {
1998 self.auto_replace_emoji_shortcode = auto_replace;
1999 }
2000
2001 pub fn set_show_inline_completions(&mut self, show_inline_completions: bool) {
2002 self.show_inline_completions = show_inline_completions;
2003 }
2004
2005 pub fn set_use_modal_editing(&mut self, to: bool) {
2006 self.use_modal_editing = to;
2007 }
2008
2009 pub fn use_modal_editing(&self) -> bool {
2010 self.use_modal_editing
2011 }
2012
2013 fn selections_did_change(
2014 &mut self,
2015 local: bool,
2016 old_cursor_position: &Anchor,
2017 cx: &mut ViewContext<Self>,
2018 ) {
2019 // Copy selections to primary selection buffer
2020 #[cfg(target_os = "linux")]
2021 if local {
2022 let selections = self.selections.all::<usize>(cx);
2023 let buffer_handle = self.buffer.read(cx).read(cx);
2024
2025 let mut text = String::new();
2026 for (index, selection) in selections.iter().enumerate() {
2027 let text_for_selection = buffer_handle
2028 .text_for_range(selection.start..selection.end)
2029 .collect::<String>();
2030
2031 text.push_str(&text_for_selection);
2032 if index != selections.len() - 1 {
2033 text.push('\n');
2034 }
2035 }
2036
2037 if !text.is_empty() {
2038 cx.write_to_primary(ClipboardItem::new(text));
2039 }
2040 }
2041
2042 if self.focus_handle.is_focused(cx) && self.leader_peer_id.is_none() {
2043 self.buffer.update(cx, |buffer, cx| {
2044 buffer.set_active_selections(
2045 &self.selections.disjoint_anchors(),
2046 self.selections.line_mode,
2047 self.cursor_shape,
2048 cx,
2049 )
2050 });
2051 }
2052
2053 let display_map = self
2054 .display_map
2055 .update(cx, |display_map, cx| display_map.snapshot(cx));
2056 let buffer = &display_map.buffer_snapshot;
2057 self.add_selections_state = None;
2058 self.select_next_state = None;
2059 self.select_prev_state = None;
2060 self.select_larger_syntax_node_stack.clear();
2061 self.invalidate_autoclose_regions(&self.selections.disjoint_anchors(), buffer);
2062 self.snippet_stack
2063 .invalidate(&self.selections.disjoint_anchors(), buffer);
2064 self.take_rename(false, cx);
2065
2066 let new_cursor_position = self.selections.newest_anchor().head();
2067
2068 self.push_to_nav_history(
2069 *old_cursor_position,
2070 Some(new_cursor_position.to_point(buffer)),
2071 cx,
2072 );
2073
2074 if local {
2075 let new_cursor_position = self.selections.newest_anchor().head();
2076 let mut context_menu = self.context_menu.write();
2077 let completion_menu = match context_menu.as_ref() {
2078 Some(ContextMenu::Completions(menu)) => Some(menu),
2079
2080 _ => {
2081 *context_menu = None;
2082 None
2083 }
2084 };
2085
2086 if let Some(completion_menu) = completion_menu {
2087 let cursor_position = new_cursor_position.to_offset(buffer);
2088 let (word_range, kind) = buffer.surrounding_word(completion_menu.initial_position);
2089 if kind == Some(CharKind::Word)
2090 && word_range.to_inclusive().contains(&cursor_position)
2091 {
2092 let mut completion_menu = completion_menu.clone();
2093 drop(context_menu);
2094
2095 let query = Self::completion_query(buffer, cursor_position);
2096 cx.spawn(move |this, mut cx| async move {
2097 completion_menu
2098 .filter(query.as_deref(), cx.background_executor().clone())
2099 .await;
2100
2101 this.update(&mut cx, |this, cx| {
2102 let mut context_menu = this.context_menu.write();
2103 let Some(ContextMenu::Completions(menu)) = context_menu.as_ref() else {
2104 return;
2105 };
2106
2107 if menu.id > completion_menu.id {
2108 return;
2109 }
2110
2111 *context_menu = Some(ContextMenu::Completions(completion_menu));
2112 drop(context_menu);
2113 cx.notify();
2114 })
2115 })
2116 .detach();
2117
2118 self.show_completions(&ShowCompletions, cx);
2119 } else {
2120 drop(context_menu);
2121 self.hide_context_menu(cx);
2122 }
2123 } else {
2124 drop(context_menu);
2125 }
2126
2127 hide_hover(self, cx);
2128
2129 if old_cursor_position.to_display_point(&display_map).row()
2130 != new_cursor_position.to_display_point(&display_map).row()
2131 {
2132 self.available_code_actions.take();
2133 }
2134 self.refresh_code_actions(cx);
2135 self.refresh_document_highlights(cx);
2136 refresh_matching_bracket_highlights(self, cx);
2137 self.discard_inline_completion(cx);
2138 if self.git_blame_inline_enabled {
2139 self.start_inline_blame_timer(cx);
2140 }
2141 }
2142
2143 self.blink_manager.update(cx, BlinkManager::pause_blinking);
2144 cx.emit(EditorEvent::SelectionsChanged { local });
2145
2146 if self.selections.disjoint_anchors().len() == 1 {
2147 cx.emit(SearchEvent::ActiveMatchChanged)
2148 }
2149
2150 cx.notify();
2151 }
2152
2153 pub fn change_selections<R>(
2154 &mut self,
2155 autoscroll: Option<Autoscroll>,
2156 cx: &mut ViewContext<Self>,
2157 change: impl FnOnce(&mut MutableSelectionsCollection<'_>) -> R,
2158 ) -> R {
2159 let old_cursor_position = self.selections.newest_anchor().head();
2160 self.push_to_selection_history();
2161
2162 let (changed, result) = self.selections.change_with(cx, change);
2163
2164 if changed {
2165 if let Some(autoscroll) = autoscroll {
2166 self.request_autoscroll(autoscroll, cx);
2167 }
2168 self.selections_did_change(true, &old_cursor_position, cx);
2169 }
2170
2171 result
2172 }
2173
2174 pub fn edit<I, S, T>(&mut self, edits: I, cx: &mut ViewContext<Self>)
2175 where
2176 I: IntoIterator<Item = (Range<S>, T)>,
2177 S: ToOffset,
2178 T: Into<Arc<str>>,
2179 {
2180 if self.read_only(cx) {
2181 return;
2182 }
2183
2184 self.buffer
2185 .update(cx, |buffer, cx| buffer.edit(edits, None, cx));
2186 }
2187
2188 pub fn edit_with_autoindent<I, S, T>(&mut self, edits: I, cx: &mut ViewContext<Self>)
2189 where
2190 I: IntoIterator<Item = (Range<S>, T)>,
2191 S: ToOffset,
2192 T: Into<Arc<str>>,
2193 {
2194 if self.read_only(cx) {
2195 return;
2196 }
2197
2198 self.buffer.update(cx, |buffer, cx| {
2199 buffer.edit(edits, self.autoindent_mode.clone(), cx)
2200 });
2201 }
2202
2203 pub fn edit_with_block_indent<I, S, T>(
2204 &mut self,
2205 edits: I,
2206 original_indent_columns: Vec<u32>,
2207 cx: &mut ViewContext<Self>,
2208 ) where
2209 I: IntoIterator<Item = (Range<S>, T)>,
2210 S: ToOffset,
2211 T: Into<Arc<str>>,
2212 {
2213 if self.read_only(cx) {
2214 return;
2215 }
2216
2217 self.buffer.update(cx, |buffer, cx| {
2218 buffer.edit(
2219 edits,
2220 Some(AutoindentMode::Block {
2221 original_indent_columns,
2222 }),
2223 cx,
2224 )
2225 });
2226 }
2227
2228 fn select(&mut self, phase: SelectPhase, cx: &mut ViewContext<Self>) {
2229 self.hide_context_menu(cx);
2230
2231 match phase {
2232 SelectPhase::Begin {
2233 position,
2234 add,
2235 click_count,
2236 } => self.begin_selection(position, add, click_count, cx),
2237 SelectPhase::BeginColumnar {
2238 position,
2239 goal_column,
2240 } => self.begin_columnar_selection(position, goal_column, cx),
2241 SelectPhase::Extend {
2242 position,
2243 click_count,
2244 } => self.extend_selection(position, click_count, cx),
2245 SelectPhase::Update {
2246 position,
2247 goal_column,
2248 scroll_delta,
2249 } => self.update_selection(position, goal_column, scroll_delta, cx),
2250 SelectPhase::End => self.end_selection(cx),
2251 }
2252 }
2253
2254 fn extend_selection(
2255 &mut self,
2256 position: DisplayPoint,
2257 click_count: usize,
2258 cx: &mut ViewContext<Self>,
2259 ) {
2260 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
2261 let tail = self.selections.newest::<usize>(cx).tail();
2262 self.begin_selection(position, false, click_count, cx);
2263
2264 let position = position.to_offset(&display_map, Bias::Left);
2265 let tail_anchor = display_map.buffer_snapshot.anchor_before(tail);
2266
2267 let mut pending_selection = self
2268 .selections
2269 .pending_anchor()
2270 .expect("extend_selection not called with pending selection");
2271 if position >= tail {
2272 pending_selection.start = tail_anchor;
2273 } else {
2274 pending_selection.end = tail_anchor;
2275 pending_selection.reversed = true;
2276 }
2277
2278 let mut pending_mode = self.selections.pending_mode().unwrap();
2279 match &mut pending_mode {
2280 SelectMode::Word(range) | SelectMode::Line(range) => *range = tail_anchor..tail_anchor,
2281 _ => {}
2282 }
2283
2284 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
2285 s.set_pending(pending_selection, pending_mode)
2286 });
2287 }
2288
2289 fn begin_selection(
2290 &mut self,
2291 position: DisplayPoint,
2292 add: bool,
2293 click_count: usize,
2294 cx: &mut ViewContext<Self>,
2295 ) {
2296 if !self.focus_handle.is_focused(cx) {
2297 cx.focus(&self.focus_handle);
2298 }
2299
2300 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
2301 let buffer = &display_map.buffer_snapshot;
2302 let newest_selection = self.selections.newest_anchor().clone();
2303 let position = display_map.clip_point(position, Bias::Left);
2304
2305 let start;
2306 let end;
2307 let mode;
2308 let auto_scroll;
2309 match click_count {
2310 1 => {
2311 start = buffer.anchor_before(position.to_point(&display_map));
2312 end = start;
2313 mode = SelectMode::Character;
2314 auto_scroll = true;
2315 }
2316 2 => {
2317 let range = movement::surrounding_word(&display_map, position);
2318 start = buffer.anchor_before(range.start.to_point(&display_map));
2319 end = buffer.anchor_before(range.end.to_point(&display_map));
2320 mode = SelectMode::Word(start..end);
2321 auto_scroll = true;
2322 }
2323 3 => {
2324 let position = display_map
2325 .clip_point(position, Bias::Left)
2326 .to_point(&display_map);
2327 let line_start = display_map.prev_line_boundary(position).0;
2328 let next_line_start = buffer.clip_point(
2329 display_map.next_line_boundary(position).0 + Point::new(1, 0),
2330 Bias::Left,
2331 );
2332 start = buffer.anchor_before(line_start);
2333 end = buffer.anchor_before(next_line_start);
2334 mode = SelectMode::Line(start..end);
2335 auto_scroll = true;
2336 }
2337 _ => {
2338 start = buffer.anchor_before(0);
2339 end = buffer.anchor_before(buffer.len());
2340 mode = SelectMode::All;
2341 auto_scroll = false;
2342 }
2343 }
2344
2345 self.change_selections(auto_scroll.then(|| Autoscroll::newest()), cx, |s| {
2346 if !add {
2347 s.clear_disjoint();
2348 } else if click_count > 1 {
2349 s.delete(newest_selection.id)
2350 }
2351
2352 s.set_pending_anchor_range(start..end, mode);
2353 });
2354 }
2355
2356 fn begin_columnar_selection(
2357 &mut self,
2358 position: DisplayPoint,
2359 goal_column: u32,
2360 cx: &mut ViewContext<Self>,
2361 ) {
2362 if !self.focus_handle.is_focused(cx) {
2363 cx.focus(&self.focus_handle);
2364 }
2365
2366 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
2367 let tail = self.selections.newest::<Point>(cx).tail();
2368 self.columnar_selection_tail = Some(display_map.buffer_snapshot.anchor_before(tail));
2369
2370 self.select_columns(
2371 tail.to_display_point(&display_map),
2372 position,
2373 goal_column,
2374 &display_map,
2375 cx,
2376 );
2377 }
2378
2379 fn update_selection(
2380 &mut self,
2381 position: DisplayPoint,
2382 goal_column: u32,
2383 scroll_delta: gpui::Point<f32>,
2384 cx: &mut ViewContext<Self>,
2385 ) {
2386 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
2387
2388 if let Some(tail) = self.columnar_selection_tail.as_ref() {
2389 let tail = tail.to_display_point(&display_map);
2390 self.select_columns(tail, position, goal_column, &display_map, cx);
2391 } else if let Some(mut pending) = self.selections.pending_anchor() {
2392 let buffer = self.buffer.read(cx).snapshot(cx);
2393 let head;
2394 let tail;
2395 let mode = self.selections.pending_mode().unwrap();
2396 match &mode {
2397 SelectMode::Character => {
2398 head = position.to_point(&display_map);
2399 tail = pending.tail().to_point(&buffer);
2400 }
2401 SelectMode::Word(original_range) => {
2402 let original_display_range = original_range.start.to_display_point(&display_map)
2403 ..original_range.end.to_display_point(&display_map);
2404 let original_buffer_range = original_display_range.start.to_point(&display_map)
2405 ..original_display_range.end.to_point(&display_map);
2406 if movement::is_inside_word(&display_map, position)
2407 || original_display_range.contains(&position)
2408 {
2409 let word_range = movement::surrounding_word(&display_map, position);
2410 if word_range.start < original_display_range.start {
2411 head = word_range.start.to_point(&display_map);
2412 } else {
2413 head = word_range.end.to_point(&display_map);
2414 }
2415 } else {
2416 head = position.to_point(&display_map);
2417 }
2418
2419 if head <= original_buffer_range.start {
2420 tail = original_buffer_range.end;
2421 } else {
2422 tail = original_buffer_range.start;
2423 }
2424 }
2425 SelectMode::Line(original_range) => {
2426 let original_range = original_range.to_point(&display_map.buffer_snapshot);
2427
2428 let position = display_map
2429 .clip_point(position, Bias::Left)
2430 .to_point(&display_map);
2431 let line_start = display_map.prev_line_boundary(position).0;
2432 let next_line_start = buffer.clip_point(
2433 display_map.next_line_boundary(position).0 + Point::new(1, 0),
2434 Bias::Left,
2435 );
2436
2437 if line_start < original_range.start {
2438 head = line_start
2439 } else {
2440 head = next_line_start
2441 }
2442
2443 if head <= original_range.start {
2444 tail = original_range.end;
2445 } else {
2446 tail = original_range.start;
2447 }
2448 }
2449 SelectMode::All => {
2450 return;
2451 }
2452 };
2453
2454 if head < tail {
2455 pending.start = buffer.anchor_before(head);
2456 pending.end = buffer.anchor_before(tail);
2457 pending.reversed = true;
2458 } else {
2459 pending.start = buffer.anchor_before(tail);
2460 pending.end = buffer.anchor_before(head);
2461 pending.reversed = false;
2462 }
2463
2464 self.change_selections(None, cx, |s| {
2465 s.set_pending(pending, mode);
2466 });
2467 } else {
2468 log::error!("update_selection dispatched with no pending selection");
2469 return;
2470 }
2471
2472 self.apply_scroll_delta(scroll_delta, cx);
2473 cx.notify();
2474 }
2475
2476 fn end_selection(&mut self, cx: &mut ViewContext<Self>) {
2477 self.columnar_selection_tail.take();
2478 if self.selections.pending_anchor().is_some() {
2479 let selections = self.selections.all::<usize>(cx);
2480 self.change_selections(None, cx, |s| {
2481 s.select(selections);
2482 s.clear_pending();
2483 });
2484 }
2485 }
2486
2487 fn select_columns(
2488 &mut self,
2489 tail: DisplayPoint,
2490 head: DisplayPoint,
2491 goal_column: u32,
2492 display_map: &DisplaySnapshot,
2493 cx: &mut ViewContext<Self>,
2494 ) {
2495 let start_row = cmp::min(tail.row(), head.row());
2496 let end_row = cmp::max(tail.row(), head.row());
2497 let start_column = cmp::min(tail.column(), goal_column);
2498 let end_column = cmp::max(tail.column(), goal_column);
2499 let reversed = start_column < tail.column();
2500
2501 let selection_ranges = (start_row.0..=end_row.0)
2502 .map(DisplayRow)
2503 .filter_map(|row| {
2504 if start_column <= display_map.line_len(row) && !display_map.is_block_line(row) {
2505 let start = display_map
2506 .clip_point(DisplayPoint::new(row, start_column), Bias::Left)
2507 .to_point(display_map);
2508 let end = display_map
2509 .clip_point(DisplayPoint::new(row, end_column), Bias::Right)
2510 .to_point(display_map);
2511 if reversed {
2512 Some(end..start)
2513 } else {
2514 Some(start..end)
2515 }
2516 } else {
2517 None
2518 }
2519 })
2520 .collect::<Vec<_>>();
2521
2522 self.change_selections(None, cx, |s| {
2523 s.select_ranges(selection_ranges);
2524 });
2525 cx.notify();
2526 }
2527
2528 pub fn has_pending_nonempty_selection(&self) -> bool {
2529 let pending_nonempty_selection = match self.selections.pending_anchor() {
2530 Some(Selection { start, end, .. }) => start != end,
2531 None => false,
2532 };
2533 pending_nonempty_selection || self.columnar_selection_tail.is_some()
2534 }
2535
2536 pub fn has_pending_selection(&self) -> bool {
2537 self.selections.pending_anchor().is_some() || self.columnar_selection_tail.is_some()
2538 }
2539
2540 pub fn cancel(&mut self, _: &Cancel, cx: &mut ViewContext<Self>) {
2541 self.clear_expanded_diff_hunks(cx);
2542 if self.dismiss_menus_and_popups(cx) {
2543 return;
2544 }
2545
2546 if self.mode == EditorMode::Full {
2547 if self.change_selections(Some(Autoscroll::fit()), cx, |s| s.try_cancel()) {
2548 return;
2549 }
2550 }
2551
2552 cx.propagate();
2553 }
2554
2555 pub fn dismiss_menus_and_popups(&mut self, cx: &mut ViewContext<Self>) -> bool {
2556 if self.take_rename(false, cx).is_some() {
2557 return true;
2558 }
2559
2560 if hide_hover(self, cx) {
2561 return true;
2562 }
2563
2564 if self.hide_context_menu(cx).is_some() {
2565 return true;
2566 }
2567
2568 if self.discard_inline_completion(cx) {
2569 return true;
2570 }
2571
2572 if self.snippet_stack.pop().is_some() {
2573 return true;
2574 }
2575
2576 if self.mode == EditorMode::Full {
2577 if self.active_diagnostics.is_some() {
2578 self.dismiss_diagnostics(cx);
2579 return true;
2580 }
2581 }
2582
2583 false
2584 }
2585
2586 pub fn handle_input(&mut self, text: &str, cx: &mut ViewContext<Self>) {
2587 let text: Arc<str> = text.into();
2588
2589 if self.read_only(cx) {
2590 return;
2591 }
2592
2593 let selections = self.selections.all_adjusted(cx);
2594 let mut brace_inserted = false;
2595 let mut edits = Vec::new();
2596 let mut new_selections = Vec::with_capacity(selections.len());
2597 let mut new_autoclose_regions = Vec::new();
2598 let snapshot = self.buffer.read(cx).read(cx);
2599
2600 for (selection, autoclose_region) in
2601 self.selections_with_autoclose_regions(selections, &snapshot)
2602 {
2603 if let Some(scope) = snapshot.language_scope_at(selection.head()) {
2604 // Determine if the inserted text matches the opening or closing
2605 // bracket of any of this language's bracket pairs.
2606 let mut bracket_pair = None;
2607 let mut is_bracket_pair_start = false;
2608 let mut is_bracket_pair_end = false;
2609 if !text.is_empty() {
2610 // `text` can be empty when a user is using IME (e.g. Chinese Wubi Simplified)
2611 // and they are removing the character that triggered IME popup.
2612 for (pair, enabled) in scope.brackets() {
2613 if !pair.close {
2614 continue;
2615 }
2616
2617 if enabled && pair.start.ends_with(text.as_ref()) {
2618 bracket_pair = Some(pair.clone());
2619 is_bracket_pair_start = true;
2620 break;
2621 }
2622 if pair.end.as_str() == text.as_ref() {
2623 bracket_pair = Some(pair.clone());
2624 is_bracket_pair_end = true;
2625 break;
2626 }
2627 }
2628 }
2629
2630 if let Some(bracket_pair) = bracket_pair {
2631 if selection.is_empty() {
2632 if is_bracket_pair_start {
2633 let prefix_len = bracket_pair.start.len() - text.len();
2634
2635 // If the inserted text is a suffix of an opening bracket and the
2636 // selection is preceded by the rest of the opening bracket, then
2637 // insert the closing bracket.
2638 let following_text_allows_autoclose = snapshot
2639 .chars_at(selection.start)
2640 .next()
2641 .map_or(true, |c| scope.should_autoclose_before(c));
2642 let preceding_text_matches_prefix = prefix_len == 0
2643 || (selection.start.column >= (prefix_len as u32)
2644 && snapshot.contains_str_at(
2645 Point::new(
2646 selection.start.row,
2647 selection.start.column - (prefix_len as u32),
2648 ),
2649 &bracket_pair.start[..prefix_len],
2650 ));
2651 let autoclose = self.use_autoclose
2652 && snapshot.settings_at(selection.start, cx).use_autoclose;
2653 if autoclose
2654 && following_text_allows_autoclose
2655 && preceding_text_matches_prefix
2656 {
2657 let anchor = snapshot.anchor_before(selection.end);
2658 new_selections.push((selection.map(|_| anchor), text.len()));
2659 new_autoclose_regions.push((
2660 anchor,
2661 text.len(),
2662 selection.id,
2663 bracket_pair.clone(),
2664 ));
2665 edits.push((
2666 selection.range(),
2667 format!("{}{}", text, bracket_pair.end).into(),
2668 ));
2669 brace_inserted = true;
2670 continue;
2671 }
2672 }
2673
2674 if let Some(region) = autoclose_region {
2675 // If the selection is followed by an auto-inserted closing bracket,
2676 // then don't insert that closing bracket again; just move the selection
2677 // past the closing bracket.
2678 let should_skip = selection.end == region.range.end.to_point(&snapshot)
2679 && text.as_ref() == region.pair.end.as_str();
2680 if should_skip {
2681 let anchor = snapshot.anchor_after(selection.end);
2682 new_selections
2683 .push((selection.map(|_| anchor), region.pair.end.len()));
2684 continue;
2685 }
2686 }
2687
2688 let always_treat_brackets_as_autoclosed = snapshot
2689 .settings_at(selection.start, cx)
2690 .always_treat_brackets_as_autoclosed;
2691 if always_treat_brackets_as_autoclosed
2692 && is_bracket_pair_end
2693 && snapshot.contains_str_at(selection.end, text.as_ref())
2694 {
2695 // Otherwise, when `always_treat_brackets_as_autoclosed` is set to `true
2696 // and the inserted text is a closing bracket and the selection is followed
2697 // by the closing bracket then move the selection past the closing bracket.
2698 let anchor = snapshot.anchor_after(selection.end);
2699 new_selections.push((selection.map(|_| anchor), text.len()));
2700 continue;
2701 }
2702 }
2703 // If an opening bracket is 1 character long and is typed while
2704 // text is selected, then surround that text with the bracket pair.
2705 else if is_bracket_pair_start && bracket_pair.start.chars().count() == 1 {
2706 edits.push((selection.start..selection.start, text.clone()));
2707 edits.push((
2708 selection.end..selection.end,
2709 bracket_pair.end.as_str().into(),
2710 ));
2711 brace_inserted = true;
2712 new_selections.push((
2713 Selection {
2714 id: selection.id,
2715 start: snapshot.anchor_after(selection.start),
2716 end: snapshot.anchor_before(selection.end),
2717 reversed: selection.reversed,
2718 goal: selection.goal,
2719 },
2720 0,
2721 ));
2722 continue;
2723 }
2724 }
2725 }
2726
2727 if self.auto_replace_emoji_shortcode
2728 && selection.is_empty()
2729 && text.as_ref().ends_with(':')
2730 {
2731 if let Some(possible_emoji_short_code) =
2732 Self::find_possible_emoji_shortcode_at_position(&snapshot, selection.start)
2733 {
2734 if !possible_emoji_short_code.is_empty() {
2735 if let Some(emoji) = emojis::get_by_shortcode(&possible_emoji_short_code) {
2736 let emoji_shortcode_start = Point::new(
2737 selection.start.row,
2738 selection.start.column - possible_emoji_short_code.len() as u32 - 1,
2739 );
2740
2741 // Remove shortcode from buffer
2742 edits.push((
2743 emoji_shortcode_start..selection.start,
2744 "".to_string().into(),
2745 ));
2746 new_selections.push((
2747 Selection {
2748 id: selection.id,
2749 start: snapshot.anchor_after(emoji_shortcode_start),
2750 end: snapshot.anchor_before(selection.start),
2751 reversed: selection.reversed,
2752 goal: selection.goal,
2753 },
2754 0,
2755 ));
2756
2757 // Insert emoji
2758 let selection_start_anchor = snapshot.anchor_after(selection.start);
2759 new_selections.push((selection.map(|_| selection_start_anchor), 0));
2760 edits.push((selection.start..selection.end, emoji.to_string().into()));
2761
2762 continue;
2763 }
2764 }
2765 }
2766 }
2767
2768 // If not handling any auto-close operation, then just replace the selected
2769 // text with the given input and move the selection to the end of the
2770 // newly inserted text.
2771 let anchor = snapshot.anchor_after(selection.end);
2772 new_selections.push((selection.map(|_| anchor), 0));
2773 edits.push((selection.start..selection.end, text.clone()));
2774 }
2775
2776 drop(snapshot);
2777 self.transact(cx, |this, cx| {
2778 this.buffer.update(cx, |buffer, cx| {
2779 buffer.edit(edits, this.autoindent_mode.clone(), cx);
2780 });
2781
2782 let new_anchor_selections = new_selections.iter().map(|e| &e.0);
2783 let new_selection_deltas = new_selections.iter().map(|e| e.1);
2784 let snapshot = this.buffer.read(cx).read(cx);
2785 let new_selections = resolve_multiple::<usize, _>(new_anchor_selections, &snapshot)
2786 .zip(new_selection_deltas)
2787 .map(|(selection, delta)| Selection {
2788 id: selection.id,
2789 start: selection.start + delta,
2790 end: selection.end + delta,
2791 reversed: selection.reversed,
2792 goal: SelectionGoal::None,
2793 })
2794 .collect::<Vec<_>>();
2795
2796 let mut i = 0;
2797 for (position, delta, selection_id, pair) in new_autoclose_regions {
2798 let position = position.to_offset(&snapshot) + delta;
2799 let start = snapshot.anchor_before(position);
2800 let end = snapshot.anchor_after(position);
2801 while let Some(existing_state) = this.autoclose_regions.get(i) {
2802 match existing_state.range.start.cmp(&start, &snapshot) {
2803 Ordering::Less => i += 1,
2804 Ordering::Greater => break,
2805 Ordering::Equal => match end.cmp(&existing_state.range.end, &snapshot) {
2806 Ordering::Less => i += 1,
2807 Ordering::Equal => break,
2808 Ordering::Greater => break,
2809 },
2810 }
2811 }
2812 this.autoclose_regions.insert(
2813 i,
2814 AutocloseRegion {
2815 selection_id,
2816 range: start..end,
2817 pair,
2818 },
2819 );
2820 }
2821
2822 drop(snapshot);
2823 let had_active_inline_completion = this.has_active_inline_completion(cx);
2824 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(new_selections));
2825
2826 if brace_inserted {
2827 // If we inserted a brace while composing text (i.e. typing `"` on a
2828 // Brazilian keyboard), exit the composing state because most likely
2829 // the user wanted to surround the selection.
2830 this.unmark_text(cx);
2831 } else if EditorSettings::get_global(cx).use_on_type_format {
2832 if let Some(on_type_format_task) =
2833 this.trigger_on_type_formatting(text.to_string(), cx)
2834 {
2835 on_type_format_task.detach_and_log_err(cx);
2836 }
2837 }
2838
2839 let trigger_in_words = !had_active_inline_completion;
2840 this.trigger_completion_on_input(&text, trigger_in_words, cx);
2841 this.refresh_inline_completion(true, cx);
2842 });
2843 }
2844
2845 fn find_possible_emoji_shortcode_at_position(
2846 snapshot: &MultiBufferSnapshot,
2847 position: Point,
2848 ) -> Option<String> {
2849 let mut chars = Vec::new();
2850 let mut found_colon = false;
2851 for char in snapshot.reversed_chars_at(position).take(100) {
2852 // Found a possible emoji shortcode in the middle of the buffer
2853 if found_colon {
2854 if char.is_whitespace() {
2855 chars.reverse();
2856 return Some(chars.iter().collect());
2857 }
2858 // If the previous character is not a whitespace, we are in the middle of a word
2859 // and we only want to complete the shortcode if the word is made up of other emojis
2860 let mut containing_word = String::new();
2861 for ch in snapshot
2862 .reversed_chars_at(position)
2863 .skip(chars.len() + 1)
2864 .take(100)
2865 {
2866 if ch.is_whitespace() {
2867 break;
2868 }
2869 containing_word.push(ch);
2870 }
2871 let containing_word = containing_word.chars().rev().collect::<String>();
2872 if util::word_consists_of_emojis(containing_word.as_str()) {
2873 chars.reverse();
2874 return Some(chars.iter().collect());
2875 }
2876 }
2877
2878 if char.is_whitespace() || !char.is_ascii() {
2879 return None;
2880 }
2881 if char == ':' {
2882 found_colon = true;
2883 } else {
2884 chars.push(char);
2885 }
2886 }
2887 // Found a possible emoji shortcode at the beginning of the buffer
2888 chars.reverse();
2889 Some(chars.iter().collect())
2890 }
2891
2892 pub fn newline(&mut self, _: &Newline, cx: &mut ViewContext<Self>) {
2893 self.transact(cx, |this, cx| {
2894 let (edits, selection_fixup_info): (Vec<_>, Vec<_>) = {
2895 let selections = this.selections.all::<usize>(cx);
2896 let multi_buffer = this.buffer.read(cx);
2897 let buffer = multi_buffer.snapshot(cx);
2898 selections
2899 .iter()
2900 .map(|selection| {
2901 let start_point = selection.start.to_point(&buffer);
2902 let mut indent =
2903 buffer.indent_size_for_line(MultiBufferRow(start_point.row));
2904 indent.len = cmp::min(indent.len, start_point.column);
2905 let start = selection.start;
2906 let end = selection.end;
2907 let selection_is_empty = start == end;
2908 let language_scope = buffer.language_scope_at(start);
2909 let (comment_delimiter, insert_extra_newline) = if let Some(language) =
2910 &language_scope
2911 {
2912 let leading_whitespace_len = buffer
2913 .reversed_chars_at(start)
2914 .take_while(|c| c.is_whitespace() && *c != '\n')
2915 .map(|c| c.len_utf8())
2916 .sum::<usize>();
2917
2918 let trailing_whitespace_len = buffer
2919 .chars_at(end)
2920 .take_while(|c| c.is_whitespace() && *c != '\n')
2921 .map(|c| c.len_utf8())
2922 .sum::<usize>();
2923
2924 let insert_extra_newline =
2925 language.brackets().any(|(pair, enabled)| {
2926 let pair_start = pair.start.trim_end();
2927 let pair_end = pair.end.trim_start();
2928
2929 enabled
2930 && pair.newline
2931 && buffer.contains_str_at(
2932 end + trailing_whitespace_len,
2933 pair_end,
2934 )
2935 && buffer.contains_str_at(
2936 (start - leading_whitespace_len)
2937 .saturating_sub(pair_start.len()),
2938 pair_start,
2939 )
2940 });
2941
2942 // Comment extension on newline is allowed only for cursor selections
2943 let comment_delimiter = maybe!({
2944 if !selection_is_empty {
2945 return None;
2946 }
2947
2948 if !multi_buffer.settings_at(0, cx).extend_comment_on_newline {
2949 return None;
2950 }
2951
2952 let delimiters = language.line_comment_prefixes();
2953 let max_len_of_delimiter =
2954 delimiters.iter().map(|delimiter| delimiter.len()).max()?;
2955 let (snapshot, range) =
2956 buffer.buffer_line_for_row(MultiBufferRow(start_point.row))?;
2957
2958 let mut index_of_first_non_whitespace = 0;
2959 let comment_candidate = snapshot
2960 .chars_for_range(range)
2961 .skip_while(|c| {
2962 let should_skip = c.is_whitespace();
2963 if should_skip {
2964 index_of_first_non_whitespace += 1;
2965 }
2966 should_skip
2967 })
2968 .take(max_len_of_delimiter)
2969 .collect::<String>();
2970 let comment_prefix = delimiters.iter().find(|comment_prefix| {
2971 comment_candidate.starts_with(comment_prefix.as_ref())
2972 })?;
2973 let cursor_is_placed_after_comment_marker =
2974 index_of_first_non_whitespace + comment_prefix.len()
2975 <= start_point.column as usize;
2976 if cursor_is_placed_after_comment_marker {
2977 Some(comment_prefix.clone())
2978 } else {
2979 None
2980 }
2981 });
2982 (comment_delimiter, insert_extra_newline)
2983 } else {
2984 (None, false)
2985 };
2986
2987 let capacity_for_delimiter = comment_delimiter
2988 .as_deref()
2989 .map(str::len)
2990 .unwrap_or_default();
2991 let mut new_text =
2992 String::with_capacity(1 + capacity_for_delimiter + indent.len as usize);
2993 new_text.push_str("\n");
2994 new_text.extend(indent.chars());
2995 if let Some(delimiter) = &comment_delimiter {
2996 new_text.push_str(&delimiter);
2997 }
2998 if insert_extra_newline {
2999 new_text = new_text.repeat(2);
3000 }
3001
3002 let anchor = buffer.anchor_after(end);
3003 let new_selection = selection.map(|_| anchor);
3004 (
3005 (start..end, new_text),
3006 (insert_extra_newline, new_selection),
3007 )
3008 })
3009 .unzip()
3010 };
3011
3012 this.edit_with_autoindent(edits, cx);
3013 let buffer = this.buffer.read(cx).snapshot(cx);
3014 let new_selections = selection_fixup_info
3015 .into_iter()
3016 .map(|(extra_newline_inserted, new_selection)| {
3017 let mut cursor = new_selection.end.to_point(&buffer);
3018 if extra_newline_inserted {
3019 cursor.row -= 1;
3020 cursor.column = buffer.line_len(MultiBufferRow(cursor.row));
3021 }
3022 new_selection.map(|_| cursor)
3023 })
3024 .collect();
3025
3026 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(new_selections));
3027 this.refresh_inline_completion(true, cx);
3028 });
3029 }
3030
3031 pub fn newline_above(&mut self, _: &NewlineAbove, cx: &mut ViewContext<Self>) {
3032 let buffer = self.buffer.read(cx);
3033 let snapshot = buffer.snapshot(cx);
3034
3035 let mut edits = Vec::new();
3036 let mut rows = Vec::new();
3037
3038 for (rows_inserted, selection) in self.selections.all_adjusted(cx).into_iter().enumerate() {
3039 let cursor = selection.head();
3040 let row = cursor.row;
3041
3042 let start_of_line = snapshot.clip_point(Point::new(row, 0), Bias::Left);
3043
3044 let newline = "\n".to_string();
3045 edits.push((start_of_line..start_of_line, newline));
3046
3047 rows.push(row + rows_inserted as u32);
3048 }
3049
3050 self.transact(cx, |editor, cx| {
3051 editor.edit(edits, cx);
3052
3053 editor.change_selections(Some(Autoscroll::fit()), cx, |s| {
3054 let mut index = 0;
3055 s.move_cursors_with(|map, _, _| {
3056 let row = rows[index];
3057 index += 1;
3058
3059 let point = Point::new(row, 0);
3060 let boundary = map.next_line_boundary(point).1;
3061 let clipped = map.clip_point(boundary, Bias::Left);
3062
3063 (clipped, SelectionGoal::None)
3064 });
3065 });
3066
3067 let mut indent_edits = Vec::new();
3068 let multibuffer_snapshot = editor.buffer.read(cx).snapshot(cx);
3069 for row in rows {
3070 let indents = multibuffer_snapshot.suggested_indents(row..row + 1, cx);
3071 for (row, indent) in indents {
3072 if indent.len == 0 {
3073 continue;
3074 }
3075
3076 let text = match indent.kind {
3077 IndentKind::Space => " ".repeat(indent.len as usize),
3078 IndentKind::Tab => "\t".repeat(indent.len as usize),
3079 };
3080 let point = Point::new(row.0, 0);
3081 indent_edits.push((point..point, text));
3082 }
3083 }
3084 editor.edit(indent_edits, cx);
3085 });
3086 }
3087
3088 pub fn newline_below(&mut self, _: &NewlineBelow, cx: &mut ViewContext<Self>) {
3089 let buffer = self.buffer.read(cx);
3090 let snapshot = buffer.snapshot(cx);
3091
3092 let mut edits = Vec::new();
3093 let mut rows = Vec::new();
3094 let mut rows_inserted = 0;
3095
3096 for selection in self.selections.all_adjusted(cx) {
3097 let cursor = selection.head();
3098 let row = cursor.row;
3099
3100 let point = Point::new(row + 1, 0);
3101 let start_of_line = snapshot.clip_point(point, Bias::Left);
3102
3103 let newline = "\n".to_string();
3104 edits.push((start_of_line..start_of_line, newline));
3105
3106 rows_inserted += 1;
3107 rows.push(row + rows_inserted);
3108 }
3109
3110 self.transact(cx, |editor, cx| {
3111 editor.edit(edits, cx);
3112
3113 editor.change_selections(Some(Autoscroll::fit()), cx, |s| {
3114 let mut index = 0;
3115 s.move_cursors_with(|map, _, _| {
3116 let row = rows[index];
3117 index += 1;
3118
3119 let point = Point::new(row, 0);
3120 let boundary = map.next_line_boundary(point).1;
3121 let clipped = map.clip_point(boundary, Bias::Left);
3122
3123 (clipped, SelectionGoal::None)
3124 });
3125 });
3126
3127 let mut indent_edits = Vec::new();
3128 let multibuffer_snapshot = editor.buffer.read(cx).snapshot(cx);
3129 for row in rows {
3130 let indents = multibuffer_snapshot.suggested_indents(row..row + 1, cx);
3131 for (row, indent) in indents {
3132 if indent.len == 0 {
3133 continue;
3134 }
3135
3136 let text = match indent.kind {
3137 IndentKind::Space => " ".repeat(indent.len as usize),
3138 IndentKind::Tab => "\t".repeat(indent.len as usize),
3139 };
3140 let point = Point::new(row.0, 0);
3141 indent_edits.push((point..point, text));
3142 }
3143 }
3144 editor.edit(indent_edits, cx);
3145 });
3146 }
3147
3148 pub fn insert(&mut self, text: &str, cx: &mut ViewContext<Self>) {
3149 let autoindent = text.is_empty().not().then(|| AutoindentMode::Block {
3150 original_indent_columns: Vec::new(),
3151 });
3152 self.insert_with_autoindent_mode(text, autoindent, cx);
3153 }
3154
3155 fn insert_with_autoindent_mode(
3156 &mut self,
3157 text: &str,
3158 autoindent_mode: Option<AutoindentMode>,
3159 cx: &mut ViewContext<Self>,
3160 ) {
3161 if self.read_only(cx) {
3162 return;
3163 }
3164
3165 let text: Arc<str> = text.into();
3166 self.transact(cx, |this, cx| {
3167 let old_selections = this.selections.all_adjusted(cx);
3168 let selection_anchors = this.buffer.update(cx, |buffer, cx| {
3169 let anchors = {
3170 let snapshot = buffer.read(cx);
3171 old_selections
3172 .iter()
3173 .map(|s| {
3174 let anchor = snapshot.anchor_after(s.head());
3175 s.map(|_| anchor)
3176 })
3177 .collect::<Vec<_>>()
3178 };
3179 buffer.edit(
3180 old_selections
3181 .iter()
3182 .map(|s| (s.start..s.end, text.clone())),
3183 autoindent_mode,
3184 cx,
3185 );
3186 anchors
3187 });
3188
3189 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
3190 s.select_anchors(selection_anchors);
3191 })
3192 });
3193 }
3194
3195 fn trigger_completion_on_input(
3196 &mut self,
3197 text: &str,
3198 trigger_in_words: bool,
3199 cx: &mut ViewContext<Self>,
3200 ) {
3201 if !EditorSettings::get_global(cx).show_completions_on_input {
3202 return;
3203 }
3204
3205 let selection = self.selections.newest_anchor();
3206 if self
3207 .buffer
3208 .read(cx)
3209 .is_completion_trigger(selection.head(), text, trigger_in_words, cx)
3210 {
3211 self.show_completions(&ShowCompletions, cx);
3212 } else {
3213 self.hide_context_menu(cx);
3214 }
3215 }
3216
3217 /// If any empty selections is touching the start of its innermost containing autoclose
3218 /// region, expand it to select the brackets.
3219 fn select_autoclose_pair(&mut self, cx: &mut ViewContext<Self>) {
3220 let selections = self.selections.all::<usize>(cx);
3221 let buffer = self.buffer.read(cx).read(cx);
3222 let new_selections = self
3223 .selections_with_autoclose_regions(selections, &buffer)
3224 .map(|(mut selection, region)| {
3225 if !selection.is_empty() {
3226 return selection;
3227 }
3228
3229 if let Some(region) = region {
3230 let mut range = region.range.to_offset(&buffer);
3231 if selection.start == range.start && range.start >= region.pair.start.len() {
3232 range.start -= region.pair.start.len();
3233 if buffer.contains_str_at(range.start, ®ion.pair.start)
3234 && buffer.contains_str_at(range.end, ®ion.pair.end)
3235 {
3236 range.end += region.pair.end.len();
3237 selection.start = range.start;
3238 selection.end = range.end;
3239
3240 return selection;
3241 }
3242 }
3243 }
3244
3245 let always_treat_brackets_as_autoclosed = buffer
3246 .settings_at(selection.start, cx)
3247 .always_treat_brackets_as_autoclosed;
3248
3249 if !always_treat_brackets_as_autoclosed {
3250 return selection;
3251 }
3252
3253 if let Some(scope) = buffer.language_scope_at(selection.start) {
3254 for (pair, enabled) in scope.brackets() {
3255 if !enabled || !pair.close {
3256 continue;
3257 }
3258
3259 if buffer.contains_str_at(selection.start, &pair.end) {
3260 let pair_start_len = pair.start.len();
3261 if buffer.contains_str_at(selection.start - pair_start_len, &pair.start)
3262 {
3263 selection.start -= pair_start_len;
3264 selection.end += pair.end.len();
3265
3266 return selection;
3267 }
3268 }
3269 }
3270 }
3271
3272 selection
3273 })
3274 .collect();
3275
3276 drop(buffer);
3277 self.change_selections(None, cx, |selections| selections.select(new_selections));
3278 }
3279
3280 /// Iterate the given selections, and for each one, find the smallest surrounding
3281 /// autoclose region. This uses the ordering of the selections and the autoclose
3282 /// regions to avoid repeated comparisons.
3283 fn selections_with_autoclose_regions<'a, D: ToOffset + Clone>(
3284 &'a self,
3285 selections: impl IntoIterator<Item = Selection<D>>,
3286 buffer: &'a MultiBufferSnapshot,
3287 ) -> impl Iterator<Item = (Selection<D>, Option<&'a AutocloseRegion>)> {
3288 let mut i = 0;
3289 let mut regions = self.autoclose_regions.as_slice();
3290 selections.into_iter().map(move |selection| {
3291 let range = selection.start.to_offset(buffer)..selection.end.to_offset(buffer);
3292
3293 let mut enclosing = None;
3294 while let Some(pair_state) = regions.get(i) {
3295 if pair_state.range.end.to_offset(buffer) < range.start {
3296 regions = ®ions[i + 1..];
3297 i = 0;
3298 } else if pair_state.range.start.to_offset(buffer) > range.end {
3299 break;
3300 } else {
3301 if pair_state.selection_id == selection.id {
3302 enclosing = Some(pair_state);
3303 }
3304 i += 1;
3305 }
3306 }
3307
3308 (selection.clone(), enclosing)
3309 })
3310 }
3311
3312 /// Remove any autoclose regions that no longer contain their selection.
3313 fn invalidate_autoclose_regions(
3314 &mut self,
3315 mut selections: &[Selection<Anchor>],
3316 buffer: &MultiBufferSnapshot,
3317 ) {
3318 self.autoclose_regions.retain(|state| {
3319 let mut i = 0;
3320 while let Some(selection) = selections.get(i) {
3321 if selection.end.cmp(&state.range.start, buffer).is_lt() {
3322 selections = &selections[1..];
3323 continue;
3324 }
3325 if selection.start.cmp(&state.range.end, buffer).is_gt() {
3326 break;
3327 }
3328 if selection.id == state.selection_id {
3329 return true;
3330 } else {
3331 i += 1;
3332 }
3333 }
3334 false
3335 });
3336 }
3337
3338 fn completion_query(buffer: &MultiBufferSnapshot, position: impl ToOffset) -> Option<String> {
3339 let offset = position.to_offset(buffer);
3340 let (word_range, kind) = buffer.surrounding_word(offset);
3341 if offset > word_range.start && kind == Some(CharKind::Word) {
3342 Some(
3343 buffer
3344 .text_for_range(word_range.start..offset)
3345 .collect::<String>(),
3346 )
3347 } else {
3348 None
3349 }
3350 }
3351
3352 pub fn toggle_inlay_hints(&mut self, _: &ToggleInlayHints, cx: &mut ViewContext<Self>) {
3353 self.refresh_inlay_hints(
3354 InlayHintRefreshReason::Toggle(!self.inlay_hint_cache.enabled),
3355 cx,
3356 );
3357 }
3358
3359 pub fn inlay_hints_enabled(&self) -> bool {
3360 self.inlay_hint_cache.enabled
3361 }
3362
3363 fn refresh_inlay_hints(&mut self, reason: InlayHintRefreshReason, cx: &mut ViewContext<Self>) {
3364 if self.project.is_none() || self.mode != EditorMode::Full {
3365 return;
3366 }
3367
3368 let reason_description = reason.description();
3369 let ignore_debounce = matches!(
3370 reason,
3371 InlayHintRefreshReason::SettingsChange(_)
3372 | InlayHintRefreshReason::Toggle(_)
3373 | InlayHintRefreshReason::ExcerptsRemoved(_)
3374 );
3375 let (invalidate_cache, required_languages) = match reason {
3376 InlayHintRefreshReason::Toggle(enabled) => {
3377 self.inlay_hint_cache.enabled = enabled;
3378 if enabled {
3379 (InvalidationStrategy::RefreshRequested, None)
3380 } else {
3381 self.inlay_hint_cache.clear();
3382 self.splice_inlays(
3383 self.visible_inlay_hints(cx)
3384 .iter()
3385 .map(|inlay| inlay.id)
3386 .collect(),
3387 Vec::new(),
3388 cx,
3389 );
3390 return;
3391 }
3392 }
3393 InlayHintRefreshReason::SettingsChange(new_settings) => {
3394 match self.inlay_hint_cache.update_settings(
3395 &self.buffer,
3396 new_settings,
3397 self.visible_inlay_hints(cx),
3398 cx,
3399 ) {
3400 ControlFlow::Break(Some(InlaySplice {
3401 to_remove,
3402 to_insert,
3403 })) => {
3404 self.splice_inlays(to_remove, to_insert, cx);
3405 return;
3406 }
3407 ControlFlow::Break(None) => return,
3408 ControlFlow::Continue(()) => (InvalidationStrategy::RefreshRequested, None),
3409 }
3410 }
3411 InlayHintRefreshReason::ExcerptsRemoved(excerpts_removed) => {
3412 if let Some(InlaySplice {
3413 to_remove,
3414 to_insert,
3415 }) = self.inlay_hint_cache.remove_excerpts(excerpts_removed)
3416 {
3417 self.splice_inlays(to_remove, to_insert, cx);
3418 }
3419 return;
3420 }
3421 InlayHintRefreshReason::NewLinesShown => (InvalidationStrategy::None, None),
3422 InlayHintRefreshReason::BufferEdited(buffer_languages) => {
3423 (InvalidationStrategy::BufferEdited, Some(buffer_languages))
3424 }
3425 InlayHintRefreshReason::RefreshRequested => {
3426 (InvalidationStrategy::RefreshRequested, None)
3427 }
3428 };
3429
3430 if let Some(InlaySplice {
3431 to_remove,
3432 to_insert,
3433 }) = self.inlay_hint_cache.spawn_hint_refresh(
3434 reason_description,
3435 self.excerpts_for_inlay_hints_query(required_languages.as_ref(), cx),
3436 invalidate_cache,
3437 ignore_debounce,
3438 cx,
3439 ) {
3440 self.splice_inlays(to_remove, to_insert, cx);
3441 }
3442 }
3443
3444 fn visible_inlay_hints(&self, cx: &ViewContext<'_, Editor>) -> Vec<Inlay> {
3445 self.display_map
3446 .read(cx)
3447 .current_inlays()
3448 .filter(move |inlay| matches!(inlay.id, InlayId::Hint(_)))
3449 .cloned()
3450 .collect()
3451 }
3452
3453 pub fn excerpts_for_inlay_hints_query(
3454 &self,
3455 restrict_to_languages: Option<&HashSet<Arc<Language>>>,
3456 cx: &mut ViewContext<Editor>,
3457 ) -> HashMap<ExcerptId, (Model<Buffer>, clock::Global, Range<usize>)> {
3458 let Some(project) = self.project.as_ref() else {
3459 return HashMap::default();
3460 };
3461 let project = project.read(cx);
3462 let multi_buffer = self.buffer().read(cx);
3463 let multi_buffer_snapshot = multi_buffer.snapshot(cx);
3464 let multi_buffer_visible_start = self
3465 .scroll_manager
3466 .anchor()
3467 .anchor
3468 .to_point(&multi_buffer_snapshot);
3469 let multi_buffer_visible_end = multi_buffer_snapshot.clip_point(
3470 multi_buffer_visible_start
3471 + Point::new(self.visible_line_count().unwrap_or(0.).ceil() as u32, 0),
3472 Bias::Left,
3473 );
3474 let multi_buffer_visible_range = multi_buffer_visible_start..multi_buffer_visible_end;
3475 multi_buffer
3476 .range_to_buffer_ranges(multi_buffer_visible_range, cx)
3477 .into_iter()
3478 .filter(|(_, excerpt_visible_range, _)| !excerpt_visible_range.is_empty())
3479 .filter_map(|(buffer_handle, excerpt_visible_range, excerpt_id)| {
3480 let buffer = buffer_handle.read(cx);
3481 let buffer_file = project::File::from_dyn(buffer.file())?;
3482 let buffer_worktree = project.worktree_for_id(buffer_file.worktree_id(cx), cx)?;
3483 let worktree_entry = buffer_worktree
3484 .read(cx)
3485 .entry_for_id(buffer_file.project_entry_id(cx)?)?;
3486 if worktree_entry.is_ignored {
3487 return None;
3488 }
3489
3490 let language = buffer.language()?;
3491 if let Some(restrict_to_languages) = restrict_to_languages {
3492 if !restrict_to_languages.contains(language) {
3493 return None;
3494 }
3495 }
3496 Some((
3497 excerpt_id,
3498 (
3499 buffer_handle,
3500 buffer.version().clone(),
3501 excerpt_visible_range,
3502 ),
3503 ))
3504 })
3505 .collect()
3506 }
3507
3508 pub fn text_layout_details(&self, cx: &WindowContext) -> TextLayoutDetails {
3509 TextLayoutDetails {
3510 text_system: cx.text_system().clone(),
3511 editor_style: self.style.clone().unwrap(),
3512 rem_size: cx.rem_size(),
3513 scroll_anchor: self.scroll_manager.anchor(),
3514 visible_rows: self.visible_line_count(),
3515 vertical_scroll_margin: self.scroll_manager.vertical_scroll_margin,
3516 }
3517 }
3518
3519 fn splice_inlays(
3520 &self,
3521 to_remove: Vec<InlayId>,
3522 to_insert: Vec<Inlay>,
3523 cx: &mut ViewContext<Self>,
3524 ) {
3525 self.display_map.update(cx, |display_map, cx| {
3526 display_map.splice_inlays(to_remove, to_insert, cx);
3527 });
3528 cx.notify();
3529 }
3530
3531 fn trigger_on_type_formatting(
3532 &self,
3533 input: String,
3534 cx: &mut ViewContext<Self>,
3535 ) -> Option<Task<Result<()>>> {
3536 if input.len() != 1 {
3537 return None;
3538 }
3539
3540 let project = self.project.as_ref()?;
3541 let position = self.selections.newest_anchor().head();
3542 let (buffer, buffer_position) = self
3543 .buffer
3544 .read(cx)
3545 .text_anchor_for_position(position, cx)?;
3546
3547 // OnTypeFormatting returns a list of edits, no need to pass them between Zed instances,
3548 // hence we do LSP request & edit on host side only — add formats to host's history.
3549 let push_to_lsp_host_history = true;
3550 // If this is not the host, append its history with new edits.
3551 let push_to_client_history = project.read(cx).is_remote();
3552
3553 let on_type_formatting = project.update(cx, |project, cx| {
3554 project.on_type_format(
3555 buffer.clone(),
3556 buffer_position,
3557 input,
3558 push_to_lsp_host_history,
3559 cx,
3560 )
3561 });
3562 Some(cx.spawn(|editor, mut cx| async move {
3563 if let Some(transaction) = on_type_formatting.await? {
3564 if push_to_client_history {
3565 buffer
3566 .update(&mut cx, |buffer, _| {
3567 buffer.push_transaction(transaction, Instant::now());
3568 })
3569 .ok();
3570 }
3571 editor.update(&mut cx, |editor, cx| {
3572 editor.refresh_document_highlights(cx);
3573 })?;
3574 }
3575 Ok(())
3576 }))
3577 }
3578
3579 fn show_completions(&mut self, _: &ShowCompletions, cx: &mut ViewContext<Self>) {
3580 if self.pending_rename.is_some() {
3581 return;
3582 }
3583
3584 let Some(provider) = self.completion_provider.as_ref() else {
3585 return;
3586 };
3587
3588 let position = self.selections.newest_anchor().head();
3589 let (buffer, buffer_position) =
3590 if let Some(output) = self.buffer.read(cx).text_anchor_for_position(position, cx) {
3591 output
3592 } else {
3593 return;
3594 };
3595
3596 let query = Self::completion_query(&self.buffer.read(cx).read(cx), position);
3597 let completions = provider.completions(&buffer, buffer_position, cx);
3598
3599 let id = post_inc(&mut self.next_completion_id);
3600 let task = cx.spawn(|this, mut cx| {
3601 async move {
3602 let completions = completions.await.log_err();
3603 let menu = if let Some(completions) = completions {
3604 let mut menu = CompletionsMenu {
3605 id,
3606 initial_position: position,
3607 match_candidates: completions
3608 .iter()
3609 .enumerate()
3610 .map(|(id, completion)| {
3611 StringMatchCandidate::new(
3612 id,
3613 completion.label.text[completion.label.filter_range.clone()]
3614 .into(),
3615 )
3616 })
3617 .collect(),
3618 buffer: buffer.clone(),
3619 completions: Arc::new(RwLock::new(completions.into())),
3620 matches: Vec::new().into(),
3621 selected_item: 0,
3622 scroll_handle: UniformListScrollHandle::new(),
3623 selected_completion_documentation_resolve_debounce: Arc::new(Mutex::new(
3624 DebouncedDelay::new(),
3625 )),
3626 };
3627 menu.filter(query.as_deref(), cx.background_executor().clone())
3628 .await;
3629
3630 if menu.matches.is_empty() {
3631 None
3632 } else {
3633 this.update(&mut cx, |editor, cx| {
3634 let completions = menu.completions.clone();
3635 let matches = menu.matches.clone();
3636
3637 let delay_ms = EditorSettings::get_global(cx)
3638 .completion_documentation_secondary_query_debounce;
3639 let delay = Duration::from_millis(delay_ms);
3640
3641 editor
3642 .completion_documentation_pre_resolve_debounce
3643 .fire_new(delay, cx, |editor, cx| {
3644 CompletionsMenu::pre_resolve_completion_documentation(
3645 buffer,
3646 completions,
3647 matches,
3648 editor,
3649 cx,
3650 )
3651 });
3652 })
3653 .ok();
3654 Some(menu)
3655 }
3656 } else {
3657 None
3658 };
3659
3660 this.update(&mut cx, |this, cx| {
3661 this.completion_tasks.retain(|(task_id, _)| *task_id >= id);
3662
3663 let mut context_menu = this.context_menu.write();
3664 match context_menu.as_ref() {
3665 None => {}
3666
3667 Some(ContextMenu::Completions(prev_menu)) => {
3668 if prev_menu.id > id {
3669 return;
3670 }
3671 }
3672
3673 _ => return,
3674 }
3675
3676 if this.focus_handle.is_focused(cx) && menu.is_some() {
3677 let menu = menu.unwrap();
3678 *context_menu = Some(ContextMenu::Completions(menu));
3679 drop(context_menu);
3680 this.discard_inline_completion(cx);
3681 cx.notify();
3682 } else if this.completion_tasks.len() <= 1 {
3683 // If there are no more completion tasks and the last menu was
3684 // empty, we should hide it. If it was already hidden, we should
3685 // also show the copilot completion when available.
3686 drop(context_menu);
3687 if this.hide_context_menu(cx).is_none() {
3688 this.update_visible_inline_completion(cx);
3689 }
3690 }
3691 })?;
3692
3693 Ok::<_, anyhow::Error>(())
3694 }
3695 .log_err()
3696 });
3697
3698 self.completion_tasks.push((id, task));
3699 }
3700
3701 pub fn confirm_completion(
3702 &mut self,
3703 action: &ConfirmCompletion,
3704 cx: &mut ViewContext<Self>,
3705 ) -> Option<Task<Result<()>>> {
3706 use language::ToOffset as _;
3707
3708 let completions_menu = if let ContextMenu::Completions(menu) = self.hide_context_menu(cx)? {
3709 menu
3710 } else {
3711 return None;
3712 };
3713
3714 let mat = completions_menu
3715 .matches
3716 .get(action.item_ix.unwrap_or(completions_menu.selected_item))?;
3717 let buffer_handle = completions_menu.buffer;
3718 let completions = completions_menu.completions.read();
3719 let completion = completions.get(mat.candidate_id)?;
3720 cx.stop_propagation();
3721
3722 let snippet;
3723 let text;
3724 if completion.is_snippet() {
3725 snippet = Some(Snippet::parse(&completion.new_text).log_err()?);
3726 text = snippet.as_ref().unwrap().text.clone();
3727 } else {
3728 snippet = None;
3729 text = completion.new_text.clone();
3730 };
3731 let selections = self.selections.all::<usize>(cx);
3732 let buffer = buffer_handle.read(cx);
3733 let old_range = completion.old_range.to_offset(buffer);
3734 let old_text = buffer.text_for_range(old_range.clone()).collect::<String>();
3735
3736 let newest_selection = self.selections.newest_anchor();
3737 if newest_selection.start.buffer_id != Some(buffer_handle.read(cx).remote_id()) {
3738 return None;
3739 }
3740
3741 let lookbehind = newest_selection
3742 .start
3743 .text_anchor
3744 .to_offset(buffer)
3745 .saturating_sub(old_range.start);
3746 let lookahead = old_range
3747 .end
3748 .saturating_sub(newest_selection.end.text_anchor.to_offset(buffer));
3749 let mut common_prefix_len = old_text
3750 .bytes()
3751 .zip(text.bytes())
3752 .take_while(|(a, b)| a == b)
3753 .count();
3754
3755 let snapshot = self.buffer.read(cx).snapshot(cx);
3756 let mut range_to_replace: Option<Range<isize>> = None;
3757 let mut ranges = Vec::new();
3758 for selection in &selections {
3759 if snapshot.contains_str_at(selection.start.saturating_sub(lookbehind), &old_text) {
3760 let start = selection.start.saturating_sub(lookbehind);
3761 let end = selection.end + lookahead;
3762 if selection.id == newest_selection.id {
3763 range_to_replace = Some(
3764 ((start + common_prefix_len) as isize - selection.start as isize)
3765 ..(end as isize - selection.start as isize),
3766 );
3767 }
3768 ranges.push(start + common_prefix_len..end);
3769 } else {
3770 common_prefix_len = 0;
3771 ranges.clear();
3772 ranges.extend(selections.iter().map(|s| {
3773 if s.id == newest_selection.id {
3774 range_to_replace = Some(
3775 old_range.start.to_offset_utf16(&snapshot).0 as isize
3776 - selection.start as isize
3777 ..old_range.end.to_offset_utf16(&snapshot).0 as isize
3778 - selection.start as isize,
3779 );
3780 old_range.clone()
3781 } else {
3782 s.start..s.end
3783 }
3784 }));
3785 break;
3786 }
3787 }
3788 let text = &text[common_prefix_len..];
3789
3790 cx.emit(EditorEvent::InputHandled {
3791 utf16_range_to_replace: range_to_replace,
3792 text: text.into(),
3793 });
3794
3795 self.transact(cx, |this, cx| {
3796 if let Some(mut snippet) = snippet {
3797 snippet.text = text.to_string();
3798 for tabstop in snippet.tabstops.iter_mut().flatten() {
3799 tabstop.start -= common_prefix_len as isize;
3800 tabstop.end -= common_prefix_len as isize;
3801 }
3802
3803 this.insert_snippet(&ranges, snippet, cx).log_err();
3804 } else {
3805 this.buffer.update(cx, |buffer, cx| {
3806 buffer.edit(
3807 ranges.iter().map(|range| (range.clone(), text)),
3808 this.autoindent_mode.clone(),
3809 cx,
3810 );
3811 });
3812 }
3813
3814 this.refresh_inline_completion(true, cx);
3815 });
3816
3817 let provider = self.completion_provider.as_ref()?;
3818 let apply_edits = provider.apply_additional_edits_for_completion(
3819 buffer_handle,
3820 completion.clone(),
3821 true,
3822 cx,
3823 );
3824 Some(cx.foreground_executor().spawn(async move {
3825 apply_edits.await?;
3826 Ok(())
3827 }))
3828 }
3829
3830 pub fn toggle_code_actions(&mut self, action: &ToggleCodeActions, cx: &mut ViewContext<Self>) {
3831 let mut context_menu = self.context_menu.write();
3832 if let Some(ContextMenu::CodeActions(code_actions)) = context_menu.as_ref() {
3833 if code_actions.deployed_from_indicator == action.deployed_from_indicator {
3834 // Toggle if we're selecting the same one
3835 *context_menu = None;
3836 cx.notify();
3837 return;
3838 } else {
3839 // Otherwise, clear it and start a new one
3840 *context_menu = None;
3841 cx.notify();
3842 }
3843 }
3844 drop(context_menu);
3845 let snapshot = self.snapshot(cx);
3846 let deployed_from_indicator = action.deployed_from_indicator;
3847 let mut task = self.code_actions_task.take();
3848 let action = action.clone();
3849 cx.spawn(|this, mut cx| async move {
3850 while let Some(prev_task) = task {
3851 prev_task.await;
3852 task = this.update(&mut cx, |this, _| this.code_actions_task.take())?;
3853 }
3854
3855 let spawned_test_task = this.update(&mut cx, |this, cx| {
3856 if this.focus_handle.is_focused(cx) {
3857 let multibuffer_point = action
3858 .deployed_from_indicator
3859 .map(|row| DisplayPoint::new(row, 0).to_point(&snapshot))
3860 .unwrap_or_else(|| this.selections.newest::<Point>(cx).head());
3861 let (buffer, buffer_row) = snapshot
3862 .buffer_snapshot
3863 .buffer_line_for_row(MultiBufferRow(multibuffer_point.row))
3864 .and_then(|(buffer_snapshot, range)| {
3865 this.buffer
3866 .read(cx)
3867 .buffer(buffer_snapshot.remote_id())
3868 .map(|buffer| (buffer, range.start.row))
3869 })?;
3870 let (_, code_actions) = this
3871 .available_code_actions
3872 .clone()
3873 .and_then(|(location, code_actions)| {
3874 let snapshot = location.buffer.read(cx).snapshot();
3875 let point_range = location.range.to_point(&snapshot);
3876 let point_range = point_range.start.row..=point_range.end.row;
3877 if point_range.contains(&buffer_row) {
3878 Some((location, code_actions))
3879 } else {
3880 None
3881 }
3882 })
3883 .unzip();
3884 let buffer_id = buffer.read(cx).remote_id();
3885 let tasks = this
3886 .tasks
3887 .get(&(buffer_id, buffer_row))
3888 .map(|t| Arc::new(t.to_owned()));
3889 if tasks.is_none() && code_actions.is_none() {
3890 return None;
3891 }
3892
3893 this.completion_tasks.clear();
3894 this.discard_inline_completion(cx);
3895 let task_context = tasks.as_ref().zip(this.workspace.clone()).and_then(
3896 |(tasks, (workspace, _))| {
3897 let position = Point::new(buffer_row, tasks.1.column);
3898 let range_start = buffer.read(cx).anchor_at(position, Bias::Right);
3899 let location = Location {
3900 buffer: buffer.clone(),
3901 range: range_start..range_start,
3902 };
3903 workspace
3904 .update(cx, |workspace, cx| {
3905 tasks::task_context_for_location(workspace, location, cx)
3906 })
3907 .ok()
3908 .flatten()
3909 },
3910 );
3911 let tasks = tasks.zip(task_context).map(|(tasks, mut task_context)| {
3912 // Fill in the environmental variables from the tree-sitter captures
3913 let mut additional_task_variables = TaskVariables::default();
3914 for (capture_name, value) in tasks.1.extra_variables.clone() {
3915 additional_task_variables.insert(
3916 task::VariableName::Custom(capture_name.into()),
3917 value.clone(),
3918 );
3919 }
3920 task_context
3921 .task_variables
3922 .extend(additional_task_variables);
3923
3924 Arc::new(ResolvedTasks {
3925 templates: tasks
3926 .1
3927 .templates
3928 .iter()
3929 .filter_map(|(kind, template)| {
3930 template
3931 .resolve_task(&kind.to_id_base(), &task_context)
3932 .map(|task| (kind.clone(), task))
3933 })
3934 .collect(),
3935 position: snapshot
3936 .buffer_snapshot
3937 .anchor_before(Point::new(multibuffer_point.row, tasks.1.column)),
3938 })
3939 });
3940 let spawn_straight_away = tasks
3941 .as_ref()
3942 .map_or(false, |tasks| tasks.templates.len() == 1)
3943 && code_actions
3944 .as_ref()
3945 .map_or(true, |actions| actions.is_empty());
3946 *this.context_menu.write() = Some(ContextMenu::CodeActions(CodeActionsMenu {
3947 buffer,
3948 actions: CodeActionContents {
3949 tasks,
3950 actions: code_actions,
3951 },
3952 selected_item: Default::default(),
3953 scroll_handle: UniformListScrollHandle::default(),
3954 deployed_from_indicator,
3955 }));
3956 if spawn_straight_away {
3957 if let Some(task) =
3958 this.confirm_code_action(&ConfirmCodeAction { item_ix: Some(0) }, cx)
3959 {
3960 cx.notify();
3961 return Some(task);
3962 }
3963 }
3964 cx.notify();
3965 }
3966 Some(Task::ready(Ok(())))
3967 })?;
3968 if let Some(task) = spawned_test_task {
3969 task.await?;
3970 }
3971
3972 Ok::<_, anyhow::Error>(())
3973 })
3974 .detach_and_log_err(cx);
3975 }
3976
3977 pub fn confirm_code_action(
3978 &mut self,
3979 action: &ConfirmCodeAction,
3980 cx: &mut ViewContext<Self>,
3981 ) -> Option<Task<Result<()>>> {
3982 let actions_menu = if let ContextMenu::CodeActions(menu) = self.hide_context_menu(cx)? {
3983 menu
3984 } else {
3985 return None;
3986 };
3987 let action_ix = action.item_ix.unwrap_or(actions_menu.selected_item);
3988 let action = actions_menu.actions.get(action_ix)?;
3989 let title = action.label();
3990 let buffer = actions_menu.buffer;
3991 let workspace = self.workspace()?;
3992
3993 match action {
3994 CodeActionsItem::Task(task_source_kind, resolved_task) => {
3995 workspace.update(cx, |workspace, cx| {
3996 workspace::tasks::schedule_resolved_task(
3997 workspace,
3998 task_source_kind,
3999 resolved_task,
4000 false,
4001 cx,
4002 );
4003
4004 Some(Task::ready(Ok(())))
4005 })
4006 }
4007 CodeActionsItem::CodeAction(action) => {
4008 let apply_code_actions = workspace
4009 .read(cx)
4010 .project()
4011 .clone()
4012 .update(cx, |project, cx| {
4013 project.apply_code_action(buffer, action, true, cx)
4014 });
4015 let workspace = workspace.downgrade();
4016 Some(cx.spawn(|editor, cx| async move {
4017 let project_transaction = apply_code_actions.await?;
4018 Self::open_project_transaction(
4019 &editor,
4020 workspace,
4021 project_transaction,
4022 title,
4023 cx,
4024 )
4025 .await
4026 }))
4027 }
4028 }
4029 }
4030
4031 async fn open_project_transaction(
4032 this: &WeakView<Editor>,
4033 workspace: WeakView<Workspace>,
4034 transaction: ProjectTransaction,
4035 title: String,
4036 mut cx: AsyncWindowContext,
4037 ) -> Result<()> {
4038 let replica_id = this.update(&mut cx, |this, cx| this.replica_id(cx))?;
4039
4040 let mut entries = transaction.0.into_iter().collect::<Vec<_>>();
4041 cx.update(|cx| {
4042 entries.sort_unstable_by_key(|(buffer, _)| {
4043 buffer.read(cx).file().map(|f| f.path().clone())
4044 });
4045 })?;
4046
4047 // If the project transaction's edits are all contained within this editor, then
4048 // avoid opening a new editor to display them.
4049
4050 if let Some((buffer, transaction)) = entries.first() {
4051 if entries.len() == 1 {
4052 let excerpt = this.update(&mut cx, |editor, cx| {
4053 editor
4054 .buffer()
4055 .read(cx)
4056 .excerpt_containing(editor.selections.newest_anchor().head(), cx)
4057 })?;
4058 if let Some((_, excerpted_buffer, excerpt_range)) = excerpt {
4059 if excerpted_buffer == *buffer {
4060 let all_edits_within_excerpt = buffer.read_with(&cx, |buffer, _| {
4061 let excerpt_range = excerpt_range.to_offset(buffer);
4062 buffer
4063 .edited_ranges_for_transaction::<usize>(transaction)
4064 .all(|range| {
4065 excerpt_range.start <= range.start
4066 && excerpt_range.end >= range.end
4067 })
4068 })?;
4069
4070 if all_edits_within_excerpt {
4071 return Ok(());
4072 }
4073 }
4074 }
4075 }
4076 } else {
4077 return Ok(());
4078 }
4079
4080 let mut ranges_to_highlight = Vec::new();
4081 let excerpt_buffer = cx.new_model(|cx| {
4082 let mut multibuffer =
4083 MultiBuffer::new(replica_id, Capability::ReadWrite).with_title(title);
4084 for (buffer_handle, transaction) in &entries {
4085 let buffer = buffer_handle.read(cx);
4086 ranges_to_highlight.extend(
4087 multibuffer.push_excerpts_with_context_lines(
4088 buffer_handle.clone(),
4089 buffer
4090 .edited_ranges_for_transaction::<usize>(transaction)
4091 .collect(),
4092 DEFAULT_MULTIBUFFER_CONTEXT,
4093 cx,
4094 ),
4095 );
4096 }
4097 multibuffer.push_transaction(entries.iter().map(|(b, t)| (b, t)), cx);
4098 multibuffer
4099 })?;
4100
4101 workspace.update(&mut cx, |workspace, cx| {
4102 let project = workspace.project().clone();
4103 let editor =
4104 cx.new_view(|cx| Editor::for_multibuffer(excerpt_buffer, Some(project), cx));
4105 workspace.add_item_to_active_pane(Box::new(editor.clone()), None, cx);
4106 editor.update(cx, |editor, cx| {
4107 editor.highlight_background::<Self>(
4108 &ranges_to_highlight,
4109 |theme| theme.editor_highlighted_line_background,
4110 cx,
4111 );
4112 });
4113 })?;
4114
4115 Ok(())
4116 }
4117
4118 fn refresh_code_actions(&mut self, cx: &mut ViewContext<Self>) -> Option<()> {
4119 let project = self.project.clone()?;
4120 let buffer = self.buffer.read(cx);
4121 let newest_selection = self.selections.newest_anchor().clone();
4122 let (start_buffer, start) = buffer.text_anchor_for_position(newest_selection.start, cx)?;
4123 let (end_buffer, end) = buffer.text_anchor_for_position(newest_selection.end, cx)?;
4124 if start_buffer != end_buffer {
4125 return None;
4126 }
4127
4128 self.code_actions_task = Some(cx.spawn(|this, mut cx| async move {
4129 cx.background_executor()
4130 .timer(CODE_ACTIONS_DEBOUNCE_TIMEOUT)
4131 .await;
4132
4133 let actions = if let Ok(code_actions) = project.update(&mut cx, |project, cx| {
4134 project.code_actions(&start_buffer, start..end, cx)
4135 }) {
4136 code_actions.await
4137 } else {
4138 Vec::new()
4139 };
4140
4141 this.update(&mut cx, |this, cx| {
4142 this.available_code_actions = if actions.is_empty() {
4143 None
4144 } else {
4145 Some((
4146 Location {
4147 buffer: start_buffer,
4148 range: start..end,
4149 },
4150 actions.into(),
4151 ))
4152 };
4153 cx.notify();
4154 })
4155 .log_err();
4156 }));
4157 None
4158 }
4159
4160 fn start_inline_blame_timer(&mut self, cx: &mut ViewContext<Self>) {
4161 if let Some(delay) = ProjectSettings::get_global(cx).git.inline_blame_delay() {
4162 self.show_git_blame_inline = false;
4163
4164 self.show_git_blame_inline_delay_task = Some(cx.spawn(|this, mut cx| async move {
4165 cx.background_executor().timer(delay).await;
4166
4167 this.update(&mut cx, |this, cx| {
4168 this.show_git_blame_inline = true;
4169 cx.notify();
4170 })
4171 .log_err();
4172 }));
4173 }
4174 }
4175
4176 fn refresh_document_highlights(&mut self, cx: &mut ViewContext<Self>) -> Option<()> {
4177 if self.pending_rename.is_some() {
4178 return None;
4179 }
4180
4181 let project = self.project.clone()?;
4182 let buffer = self.buffer.read(cx);
4183 let newest_selection = self.selections.newest_anchor().clone();
4184 let cursor_position = newest_selection.head();
4185 let (cursor_buffer, cursor_buffer_position) =
4186 buffer.text_anchor_for_position(cursor_position, cx)?;
4187 let (tail_buffer, _) = buffer.text_anchor_for_position(newest_selection.tail(), cx)?;
4188 if cursor_buffer != tail_buffer {
4189 return None;
4190 }
4191
4192 self.document_highlights_task = Some(cx.spawn(|this, mut cx| async move {
4193 cx.background_executor()
4194 .timer(DOCUMENT_HIGHLIGHTS_DEBOUNCE_TIMEOUT)
4195 .await;
4196
4197 let highlights = if let Some(highlights) = project
4198 .update(&mut cx, |project, cx| {
4199 project.document_highlights(&cursor_buffer, cursor_buffer_position, cx)
4200 })
4201 .log_err()
4202 {
4203 highlights.await.log_err()
4204 } else {
4205 None
4206 };
4207
4208 if let Some(highlights) = highlights {
4209 this.update(&mut cx, |this, cx| {
4210 if this.pending_rename.is_some() {
4211 return;
4212 }
4213
4214 let buffer_id = cursor_position.buffer_id;
4215 let buffer = this.buffer.read(cx);
4216 if !buffer
4217 .text_anchor_for_position(cursor_position, cx)
4218 .map_or(false, |(buffer, _)| buffer == cursor_buffer)
4219 {
4220 return;
4221 }
4222
4223 let cursor_buffer_snapshot = cursor_buffer.read(cx);
4224 let mut write_ranges = Vec::new();
4225 let mut read_ranges = Vec::new();
4226 for highlight in highlights {
4227 for (excerpt_id, excerpt_range) in
4228 buffer.excerpts_for_buffer(&cursor_buffer, cx)
4229 {
4230 let start = highlight
4231 .range
4232 .start
4233 .max(&excerpt_range.context.start, cursor_buffer_snapshot);
4234 let end = highlight
4235 .range
4236 .end
4237 .min(&excerpt_range.context.end, cursor_buffer_snapshot);
4238 if start.cmp(&end, cursor_buffer_snapshot).is_ge() {
4239 continue;
4240 }
4241
4242 let range = Anchor {
4243 buffer_id,
4244 excerpt_id: excerpt_id,
4245 text_anchor: start,
4246 }..Anchor {
4247 buffer_id,
4248 excerpt_id,
4249 text_anchor: end,
4250 };
4251 if highlight.kind == lsp::DocumentHighlightKind::WRITE {
4252 write_ranges.push(range);
4253 } else {
4254 read_ranges.push(range);
4255 }
4256 }
4257 }
4258
4259 this.highlight_background::<DocumentHighlightRead>(
4260 &read_ranges,
4261 |theme| theme.editor_document_highlight_read_background,
4262 cx,
4263 );
4264 this.highlight_background::<DocumentHighlightWrite>(
4265 &write_ranges,
4266 |theme| theme.editor_document_highlight_write_background,
4267 cx,
4268 );
4269 cx.notify();
4270 })
4271 .log_err();
4272 }
4273 }));
4274 None
4275 }
4276
4277 fn refresh_inline_completion(
4278 &mut self,
4279 debounce: bool,
4280 cx: &mut ViewContext<Self>,
4281 ) -> Option<()> {
4282 let provider = self.inline_completion_provider()?;
4283 let cursor = self.selections.newest_anchor().head();
4284 let (buffer, cursor_buffer_position) =
4285 self.buffer.read(cx).text_anchor_for_position(cursor, cx)?;
4286 if !self.show_inline_completions
4287 || !provider.is_enabled(&buffer, cursor_buffer_position, cx)
4288 {
4289 self.discard_inline_completion(cx);
4290 return None;
4291 }
4292
4293 self.update_visible_inline_completion(cx);
4294 provider.refresh(buffer, cursor_buffer_position, debounce, cx);
4295 Some(())
4296 }
4297
4298 fn cycle_inline_completion(
4299 &mut self,
4300 direction: Direction,
4301 cx: &mut ViewContext<Self>,
4302 ) -> Option<()> {
4303 let provider = self.inline_completion_provider()?;
4304 let cursor = self.selections.newest_anchor().head();
4305 let (buffer, cursor_buffer_position) =
4306 self.buffer.read(cx).text_anchor_for_position(cursor, cx)?;
4307 if !self.show_inline_completions
4308 || !provider.is_enabled(&buffer, cursor_buffer_position, cx)
4309 {
4310 return None;
4311 }
4312
4313 provider.cycle(buffer, cursor_buffer_position, direction, cx);
4314 self.update_visible_inline_completion(cx);
4315
4316 Some(())
4317 }
4318
4319 pub fn show_inline_completion(&mut self, _: &ShowInlineCompletion, cx: &mut ViewContext<Self>) {
4320 if !self.has_active_inline_completion(cx) {
4321 self.refresh_inline_completion(false, cx);
4322 return;
4323 }
4324
4325 self.update_visible_inline_completion(cx);
4326 }
4327
4328 pub fn display_cursor_names(&mut self, _: &DisplayCursorNames, cx: &mut ViewContext<Self>) {
4329 self.show_cursor_names(cx);
4330 }
4331
4332 fn show_cursor_names(&mut self, cx: &mut ViewContext<Self>) {
4333 self.show_cursor_names = true;
4334 cx.notify();
4335 cx.spawn(|this, mut cx| async move {
4336 cx.background_executor().timer(CURSORS_VISIBLE_FOR).await;
4337 this.update(&mut cx, |this, cx| {
4338 this.show_cursor_names = false;
4339 cx.notify()
4340 })
4341 .ok()
4342 })
4343 .detach();
4344 }
4345
4346 pub fn next_inline_completion(&mut self, _: &NextInlineCompletion, cx: &mut ViewContext<Self>) {
4347 if self.has_active_inline_completion(cx) {
4348 self.cycle_inline_completion(Direction::Next, cx);
4349 } else {
4350 let is_copilot_disabled = self.refresh_inline_completion(false, cx).is_none();
4351 if is_copilot_disabled {
4352 cx.propagate();
4353 }
4354 }
4355 }
4356
4357 pub fn previous_inline_completion(
4358 &mut self,
4359 _: &PreviousInlineCompletion,
4360 cx: &mut ViewContext<Self>,
4361 ) {
4362 if self.has_active_inline_completion(cx) {
4363 self.cycle_inline_completion(Direction::Prev, 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 fn accept_inline_completion(&mut self, cx: &mut ViewContext<Self>) -> bool {
4373 if let Some(completion) = self.take_active_inline_completion(cx) {
4374 if let Some(provider) = self.inline_completion_provider() {
4375 provider.accept(cx);
4376 }
4377
4378 cx.emit(EditorEvent::InputHandled {
4379 utf16_range_to_replace: None,
4380 text: completion.text.to_string().into(),
4381 });
4382 self.insert_with_autoindent_mode(&completion.text.to_string(), None, cx);
4383 self.refresh_inline_completion(true, cx);
4384 cx.notify();
4385 true
4386 } else {
4387 false
4388 }
4389 }
4390
4391 pub fn accept_partial_inline_completion(
4392 &mut self,
4393 _: &AcceptPartialInlineCompletion,
4394 cx: &mut ViewContext<Self>,
4395 ) {
4396 if self.selections.count() == 1 && self.has_active_inline_completion(cx) {
4397 if let Some(completion) = self.take_active_inline_completion(cx) {
4398 let mut partial_completion = completion
4399 .text
4400 .chars()
4401 .by_ref()
4402 .take_while(|c| c.is_alphabetic())
4403 .collect::<String>();
4404 if partial_completion.is_empty() {
4405 partial_completion = completion
4406 .text
4407 .chars()
4408 .by_ref()
4409 .take_while(|c| c.is_whitespace() || !c.is_alphabetic())
4410 .collect::<String>();
4411 }
4412
4413 cx.emit(EditorEvent::InputHandled {
4414 utf16_range_to_replace: None,
4415 text: partial_completion.clone().into(),
4416 });
4417 self.insert_with_autoindent_mode(&partial_completion, None, cx);
4418 self.refresh_inline_completion(true, cx);
4419 cx.notify();
4420 }
4421 }
4422 }
4423
4424 fn discard_inline_completion(&mut self, cx: &mut ViewContext<Self>) -> bool {
4425 if let Some(provider) = self.inline_completion_provider() {
4426 provider.discard(cx);
4427 }
4428
4429 self.take_active_inline_completion(cx).is_some()
4430 }
4431
4432 pub fn has_active_inline_completion(&self, cx: &AppContext) -> bool {
4433 if let Some(completion) = self.active_inline_completion.as_ref() {
4434 let buffer = self.buffer.read(cx).read(cx);
4435 completion.position.is_valid(&buffer)
4436 } else {
4437 false
4438 }
4439 }
4440
4441 fn take_active_inline_completion(&mut self, cx: &mut ViewContext<Self>) -> Option<Inlay> {
4442 let completion = self.active_inline_completion.take()?;
4443 self.display_map.update(cx, |map, cx| {
4444 map.splice_inlays(vec![completion.id], Default::default(), cx);
4445 });
4446 let buffer = self.buffer.read(cx).read(cx);
4447
4448 if completion.position.is_valid(&buffer) {
4449 Some(completion)
4450 } else {
4451 None
4452 }
4453 }
4454
4455 fn update_visible_inline_completion(&mut self, cx: &mut ViewContext<Self>) {
4456 let selection = self.selections.newest_anchor();
4457 let cursor = selection.head();
4458
4459 if self.context_menu.read().is_none()
4460 && self.completion_tasks.is_empty()
4461 && selection.start == selection.end
4462 {
4463 if let Some(provider) = self.inline_completion_provider() {
4464 if let Some((buffer, cursor_buffer_position)) =
4465 self.buffer.read(cx).text_anchor_for_position(cursor, cx)
4466 {
4467 if let Some(text) =
4468 provider.active_completion_text(&buffer, cursor_buffer_position, cx)
4469 {
4470 let text = Rope::from(text);
4471 let mut to_remove = Vec::new();
4472 if let Some(completion) = self.active_inline_completion.take() {
4473 to_remove.push(completion.id);
4474 }
4475
4476 let completion_inlay =
4477 Inlay::suggestion(post_inc(&mut self.next_inlay_id), cursor, text);
4478 self.active_inline_completion = Some(completion_inlay.clone());
4479 self.display_map.update(cx, move |map, cx| {
4480 map.splice_inlays(to_remove, vec![completion_inlay], cx)
4481 });
4482 cx.notify();
4483 return;
4484 }
4485 }
4486 }
4487 }
4488
4489 self.discard_inline_completion(cx);
4490 }
4491
4492 fn inline_completion_provider(&self) -> Option<Arc<dyn InlineCompletionProviderHandle>> {
4493 Some(self.inline_completion_provider.as_ref()?.provider.clone())
4494 }
4495
4496 fn render_code_actions_indicator(
4497 &self,
4498 _style: &EditorStyle,
4499 row: DisplayRow,
4500 is_active: bool,
4501 cx: &mut ViewContext<Self>,
4502 ) -> Option<IconButton> {
4503 if self.available_code_actions.is_some() {
4504 Some(
4505 IconButton::new("code_actions_indicator", ui::IconName::Bolt)
4506 .icon_size(IconSize::XSmall)
4507 .size(ui::ButtonSize::None)
4508 .icon_color(Color::Muted)
4509 .selected(is_active)
4510 .on_click(cx.listener(move |editor, _e, cx| {
4511 editor.toggle_code_actions(
4512 &ToggleCodeActions {
4513 deployed_from_indicator: Some(row),
4514 },
4515 cx,
4516 );
4517 })),
4518 )
4519 } else {
4520 None
4521 }
4522 }
4523
4524 fn clear_tasks(&mut self) {
4525 self.tasks.clear()
4526 }
4527
4528 fn insert_tasks(&mut self, key: (BufferId, BufferRow), value: (usize, RunnableTasks)) {
4529 if let Some(_) = self.tasks.insert(key, value) {
4530 // This case should hopefully be rare, but just in case...
4531 log::error!("multiple different run targets found on a single line, only the last target will be rendered")
4532 }
4533 }
4534
4535 fn render_run_indicator(
4536 &self,
4537 _style: &EditorStyle,
4538 is_active: bool,
4539 row: DisplayRow,
4540 cx: &mut ViewContext<Self>,
4541 ) -> IconButton {
4542 IconButton::new("code_actions_indicator", ui::IconName::Play)
4543 .icon_size(IconSize::XSmall)
4544 .size(ui::ButtonSize::None)
4545 .icon_color(Color::Muted)
4546 .selected(is_active)
4547 .on_click(cx.listener(move |editor, _e, cx| {
4548 editor.toggle_code_actions(
4549 &ToggleCodeActions {
4550 deployed_from_indicator: Some(row),
4551 },
4552 cx,
4553 );
4554 }))
4555 }
4556
4557 pub fn render_fold_indicators(
4558 &mut self,
4559 fold_data: Vec<Option<(FoldStatus, MultiBufferRow, bool)>>,
4560 _style: &EditorStyle,
4561 gutter_hovered: bool,
4562 _line_height: Pixels,
4563 _gutter_margin: Pixels,
4564 cx: &mut ViewContext<Self>,
4565 ) -> Vec<Option<AnyElement>> {
4566 fold_data
4567 .iter()
4568 .enumerate()
4569 .map(|(ix, fold_data)| {
4570 fold_data
4571 .map(|(fold_status, buffer_row, active)| {
4572 (active || gutter_hovered || fold_status == FoldStatus::Folded).then(|| {
4573 IconButton::new(ix, ui::IconName::ChevronDown)
4574 .on_click(cx.listener(move |this, _e, cx| match fold_status {
4575 FoldStatus::Folded => {
4576 this.unfold_at(&UnfoldAt { buffer_row }, cx);
4577 }
4578 FoldStatus::Foldable => {
4579 this.fold_at(&FoldAt { buffer_row }, cx);
4580 }
4581 }))
4582 .icon_color(ui::Color::Muted)
4583 .icon_size(ui::IconSize::Small)
4584 .selected(fold_status == FoldStatus::Folded)
4585 .selected_icon(ui::IconName::ChevronRight)
4586 .size(ui::ButtonSize::None)
4587 .into_any_element()
4588 })
4589 })
4590 .flatten()
4591 })
4592 .collect()
4593 }
4594
4595 pub fn context_menu_visible(&self) -> bool {
4596 self.context_menu
4597 .read()
4598 .as_ref()
4599 .map_or(false, |menu| menu.visible())
4600 }
4601
4602 fn render_context_menu(
4603 &self,
4604 cursor_position: DisplayPoint,
4605 style: &EditorStyle,
4606 max_height: Pixels,
4607 cx: &mut ViewContext<Editor>,
4608 ) -> Option<(ContextMenuOrigin, AnyElement)> {
4609 self.context_menu.read().as_ref().map(|menu| {
4610 menu.render(
4611 cursor_position,
4612 style,
4613 max_height,
4614 self.workspace.as_ref().map(|(w, _)| w.clone()),
4615 cx,
4616 )
4617 })
4618 }
4619
4620 fn hide_context_menu(&mut self, cx: &mut ViewContext<Self>) -> Option<ContextMenu> {
4621 cx.notify();
4622 self.completion_tasks.clear();
4623 let context_menu = self.context_menu.write().take();
4624 if context_menu.is_some() {
4625 self.update_visible_inline_completion(cx);
4626 }
4627 context_menu
4628 }
4629
4630 pub fn insert_snippet(
4631 &mut self,
4632 insertion_ranges: &[Range<usize>],
4633 snippet: Snippet,
4634 cx: &mut ViewContext<Self>,
4635 ) -> Result<()> {
4636 let tabstops = self.buffer.update(cx, |buffer, cx| {
4637 let snippet_text: Arc<str> = snippet.text.clone().into();
4638 buffer.edit(
4639 insertion_ranges
4640 .iter()
4641 .cloned()
4642 .map(|range| (range, snippet_text.clone())),
4643 Some(AutoindentMode::EachLine),
4644 cx,
4645 );
4646
4647 let snapshot = &*buffer.read(cx);
4648 let snippet = &snippet;
4649 snippet
4650 .tabstops
4651 .iter()
4652 .map(|tabstop| {
4653 let mut tabstop_ranges = tabstop
4654 .iter()
4655 .flat_map(|tabstop_range| {
4656 let mut delta = 0_isize;
4657 insertion_ranges.iter().map(move |insertion_range| {
4658 let insertion_start = insertion_range.start as isize + delta;
4659 delta +=
4660 snippet.text.len() as isize - insertion_range.len() as isize;
4661
4662 let start = snapshot.anchor_before(
4663 (insertion_start + tabstop_range.start) as usize,
4664 );
4665 let end = snapshot
4666 .anchor_after((insertion_start + tabstop_range.end) as usize);
4667 start..end
4668 })
4669 })
4670 .collect::<Vec<_>>();
4671 tabstop_ranges.sort_unstable_by(|a, b| a.start.cmp(&b.start, snapshot));
4672 tabstop_ranges
4673 })
4674 .collect::<Vec<_>>()
4675 });
4676
4677 if let Some(tabstop) = tabstops.first() {
4678 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
4679 s.select_ranges(tabstop.iter().cloned());
4680 });
4681 self.snippet_stack.push(SnippetState {
4682 active_index: 0,
4683 ranges: tabstops,
4684 });
4685
4686 // Check whether the just-entered snippet ends with an auto-closable bracket.
4687 if self.autoclose_regions.is_empty() {
4688 let snapshot = self.buffer.read(cx).snapshot(cx);
4689 for selection in &mut self.selections.all::<Point>(cx) {
4690 let selection_head = selection.head();
4691 let Some(scope) = snapshot.language_scope_at(selection_head) else {
4692 continue;
4693 };
4694
4695 let mut bracket_pair = None;
4696 let next_chars = snapshot.chars_at(selection_head).collect::<String>();
4697 let prev_chars = snapshot
4698 .reversed_chars_at(selection_head)
4699 .collect::<String>();
4700 for (pair, enabled) in scope.brackets() {
4701 if enabled
4702 && pair.close
4703 && prev_chars.starts_with(pair.start.as_str())
4704 && next_chars.starts_with(pair.end.as_str())
4705 {
4706 bracket_pair = Some(pair.clone());
4707 break;
4708 }
4709 }
4710 if let Some(pair) = bracket_pair {
4711 let start = snapshot.anchor_after(selection_head);
4712 let end = snapshot.anchor_after(selection_head);
4713 self.autoclose_regions.push(AutocloseRegion {
4714 selection_id: selection.id,
4715 range: start..end,
4716 pair,
4717 });
4718 }
4719 }
4720 }
4721 }
4722 Ok(())
4723 }
4724
4725 pub fn move_to_next_snippet_tabstop(&mut self, cx: &mut ViewContext<Self>) -> bool {
4726 self.move_to_snippet_tabstop(Bias::Right, cx)
4727 }
4728
4729 pub fn move_to_prev_snippet_tabstop(&mut self, cx: &mut ViewContext<Self>) -> bool {
4730 self.move_to_snippet_tabstop(Bias::Left, cx)
4731 }
4732
4733 pub fn move_to_snippet_tabstop(&mut self, bias: Bias, cx: &mut ViewContext<Self>) -> bool {
4734 if let Some(mut snippet) = self.snippet_stack.pop() {
4735 match bias {
4736 Bias::Left => {
4737 if snippet.active_index > 0 {
4738 snippet.active_index -= 1;
4739 } else {
4740 self.snippet_stack.push(snippet);
4741 return false;
4742 }
4743 }
4744 Bias::Right => {
4745 if snippet.active_index + 1 < snippet.ranges.len() {
4746 snippet.active_index += 1;
4747 } else {
4748 self.snippet_stack.push(snippet);
4749 return false;
4750 }
4751 }
4752 }
4753 if let Some(current_ranges) = snippet.ranges.get(snippet.active_index) {
4754 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
4755 s.select_anchor_ranges(current_ranges.iter().cloned())
4756 });
4757 // If snippet state is not at the last tabstop, push it back on the stack
4758 if snippet.active_index + 1 < snippet.ranges.len() {
4759 self.snippet_stack.push(snippet);
4760 }
4761 return true;
4762 }
4763 }
4764
4765 false
4766 }
4767
4768 pub fn clear(&mut self, cx: &mut ViewContext<Self>) {
4769 self.transact(cx, |this, cx| {
4770 this.select_all(&SelectAll, cx);
4771 this.insert("", cx);
4772 });
4773 }
4774
4775 pub fn backspace(&mut self, _: &Backspace, cx: &mut ViewContext<Self>) {
4776 self.transact(cx, |this, cx| {
4777 this.select_autoclose_pair(cx);
4778 let mut selections = this.selections.all::<MultiBufferPoint>(cx);
4779 if !this.selections.line_mode {
4780 let display_map = this.display_map.update(cx, |map, cx| map.snapshot(cx));
4781 for selection in &mut selections {
4782 if selection.is_empty() {
4783 let old_head = selection.head();
4784 let mut new_head =
4785 movement::left(&display_map, old_head.to_display_point(&display_map))
4786 .to_point(&display_map);
4787 if let Some((buffer, line_buffer_range)) = display_map
4788 .buffer_snapshot
4789 .buffer_line_for_row(MultiBufferRow(old_head.row))
4790 {
4791 let indent_size =
4792 buffer.indent_size_for_line(line_buffer_range.start.row);
4793 let indent_len = match indent_size.kind {
4794 IndentKind::Space => {
4795 buffer.settings_at(line_buffer_range.start, cx).tab_size
4796 }
4797 IndentKind::Tab => NonZeroU32::new(1).unwrap(),
4798 };
4799 if old_head.column <= indent_size.len && old_head.column > 0 {
4800 let indent_len = indent_len.get();
4801 new_head = cmp::min(
4802 new_head,
4803 MultiBufferPoint::new(
4804 old_head.row,
4805 ((old_head.column - 1) / indent_len) * indent_len,
4806 ),
4807 );
4808 }
4809 }
4810
4811 selection.set_head(new_head, SelectionGoal::None);
4812 }
4813 }
4814 }
4815
4816 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
4817 this.insert("", cx);
4818 this.refresh_inline_completion(true, cx);
4819 });
4820 }
4821
4822 pub fn delete(&mut self, _: &Delete, cx: &mut ViewContext<Self>) {
4823 self.transact(cx, |this, cx| {
4824 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
4825 let line_mode = s.line_mode;
4826 s.move_with(|map, selection| {
4827 if selection.is_empty() && !line_mode {
4828 let cursor = movement::right(map, selection.head());
4829 selection.end = cursor;
4830 selection.reversed = true;
4831 selection.goal = SelectionGoal::None;
4832 }
4833 })
4834 });
4835 this.insert("", cx);
4836 this.refresh_inline_completion(true, cx);
4837 });
4838 }
4839
4840 pub fn tab_prev(&mut self, _: &TabPrev, cx: &mut ViewContext<Self>) {
4841 if self.move_to_prev_snippet_tabstop(cx) {
4842 return;
4843 }
4844
4845 self.outdent(&Outdent, cx);
4846 }
4847
4848 pub fn tab(&mut self, _: &Tab, cx: &mut ViewContext<Self>) {
4849 if self.move_to_next_snippet_tabstop(cx) || self.read_only(cx) {
4850 return;
4851 }
4852
4853 let mut selections = self.selections.all_adjusted(cx);
4854 let buffer = self.buffer.read(cx);
4855 let snapshot = buffer.snapshot(cx);
4856 let rows_iter = selections.iter().map(|s| s.head().row);
4857 let suggested_indents = snapshot.suggested_indents(rows_iter, cx);
4858
4859 let mut edits = Vec::new();
4860 let mut prev_edited_row = 0;
4861 let mut row_delta = 0;
4862 for selection in &mut selections {
4863 if selection.start.row != prev_edited_row {
4864 row_delta = 0;
4865 }
4866 prev_edited_row = selection.end.row;
4867
4868 // If the selection is non-empty, then increase the indentation of the selected lines.
4869 if !selection.is_empty() {
4870 row_delta =
4871 Self::indent_selection(buffer, &snapshot, selection, &mut edits, row_delta, cx);
4872 continue;
4873 }
4874
4875 // If the selection is empty and the cursor is in the leading whitespace before the
4876 // suggested indentation, then auto-indent the line.
4877 let cursor = selection.head();
4878 let current_indent = snapshot.indent_size_for_line(MultiBufferRow(cursor.row));
4879 if let Some(suggested_indent) =
4880 suggested_indents.get(&MultiBufferRow(cursor.row)).copied()
4881 {
4882 if cursor.column < suggested_indent.len
4883 && cursor.column <= current_indent.len
4884 && current_indent.len <= suggested_indent.len
4885 {
4886 selection.start = Point::new(cursor.row, suggested_indent.len);
4887 selection.end = selection.start;
4888 if row_delta == 0 {
4889 edits.extend(Buffer::edit_for_indent_size_adjustment(
4890 cursor.row,
4891 current_indent,
4892 suggested_indent,
4893 ));
4894 row_delta = suggested_indent.len - current_indent.len;
4895 }
4896 continue;
4897 }
4898 }
4899
4900 // Accept copilot completion if there is only one selection and the cursor is not
4901 // in the leading whitespace.
4902 if self.selections.count() == 1
4903 && cursor.column >= current_indent.len
4904 && self.has_active_inline_completion(cx)
4905 {
4906 self.accept_inline_completion(cx);
4907 return;
4908 }
4909
4910 // Otherwise, insert a hard or soft tab.
4911 let settings = buffer.settings_at(cursor, cx);
4912 let tab_size = if settings.hard_tabs {
4913 IndentSize::tab()
4914 } else {
4915 let tab_size = settings.tab_size.get();
4916 let char_column = snapshot
4917 .text_for_range(Point::new(cursor.row, 0)..cursor)
4918 .flat_map(str::chars)
4919 .count()
4920 + row_delta as usize;
4921 let chars_to_next_tab_stop = tab_size - (char_column as u32 % tab_size);
4922 IndentSize::spaces(chars_to_next_tab_stop)
4923 };
4924 selection.start = Point::new(cursor.row, cursor.column + row_delta + tab_size.len);
4925 selection.end = selection.start;
4926 edits.push((cursor..cursor, tab_size.chars().collect::<String>()));
4927 row_delta += tab_size.len;
4928 }
4929
4930 self.transact(cx, |this, cx| {
4931 this.buffer.update(cx, |b, cx| b.edit(edits, None, cx));
4932 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
4933 this.refresh_inline_completion(true, cx);
4934 });
4935 }
4936
4937 pub fn indent(&mut self, _: &Indent, cx: &mut ViewContext<Self>) {
4938 if self.read_only(cx) {
4939 return;
4940 }
4941 let mut selections = self.selections.all::<Point>(cx);
4942 let mut prev_edited_row = 0;
4943 let mut row_delta = 0;
4944 let mut edits = Vec::new();
4945 let buffer = self.buffer.read(cx);
4946 let snapshot = buffer.snapshot(cx);
4947 for selection in &mut selections {
4948 if selection.start.row != prev_edited_row {
4949 row_delta = 0;
4950 }
4951 prev_edited_row = selection.end.row;
4952
4953 row_delta =
4954 Self::indent_selection(buffer, &snapshot, selection, &mut edits, row_delta, cx);
4955 }
4956
4957 self.transact(cx, |this, cx| {
4958 this.buffer.update(cx, |b, cx| b.edit(edits, None, cx));
4959 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
4960 });
4961 }
4962
4963 fn indent_selection(
4964 buffer: &MultiBuffer,
4965 snapshot: &MultiBufferSnapshot,
4966 selection: &mut Selection<Point>,
4967 edits: &mut Vec<(Range<Point>, String)>,
4968 delta_for_start_row: u32,
4969 cx: &AppContext,
4970 ) -> u32 {
4971 let settings = buffer.settings_at(selection.start, cx);
4972 let tab_size = settings.tab_size.get();
4973 let indent_kind = if settings.hard_tabs {
4974 IndentKind::Tab
4975 } else {
4976 IndentKind::Space
4977 };
4978 let mut start_row = selection.start.row;
4979 let mut end_row = selection.end.row + 1;
4980
4981 // If a selection ends at the beginning of a line, don't indent
4982 // that last line.
4983 if selection.end.column == 0 && selection.end.row > selection.start.row {
4984 end_row -= 1;
4985 }
4986
4987 // Avoid re-indenting a row that has already been indented by a
4988 // previous selection, but still update this selection's column
4989 // to reflect that indentation.
4990 if delta_for_start_row > 0 {
4991 start_row += 1;
4992 selection.start.column += delta_for_start_row;
4993 if selection.end.row == selection.start.row {
4994 selection.end.column += delta_for_start_row;
4995 }
4996 }
4997
4998 let mut delta_for_end_row = 0;
4999 let has_multiple_rows = start_row + 1 != end_row;
5000 for row in start_row..end_row {
5001 let current_indent = snapshot.indent_size_for_line(MultiBufferRow(row));
5002 let indent_delta = match (current_indent.kind, indent_kind) {
5003 (IndentKind::Space, IndentKind::Space) => {
5004 let columns_to_next_tab_stop = tab_size - (current_indent.len % tab_size);
5005 IndentSize::spaces(columns_to_next_tab_stop)
5006 }
5007 (IndentKind::Tab, IndentKind::Space) => IndentSize::spaces(tab_size),
5008 (_, IndentKind::Tab) => IndentSize::tab(),
5009 };
5010
5011 let start = if has_multiple_rows || current_indent.len < selection.start.column {
5012 0
5013 } else {
5014 selection.start.column
5015 };
5016 let row_start = Point::new(row, start);
5017 edits.push((
5018 row_start..row_start,
5019 indent_delta.chars().collect::<String>(),
5020 ));
5021
5022 // Update this selection's endpoints to reflect the indentation.
5023 if row == selection.start.row {
5024 selection.start.column += indent_delta.len;
5025 }
5026 if row == selection.end.row {
5027 selection.end.column += indent_delta.len;
5028 delta_for_end_row = indent_delta.len;
5029 }
5030 }
5031
5032 if selection.start.row == selection.end.row {
5033 delta_for_start_row + delta_for_end_row
5034 } else {
5035 delta_for_end_row
5036 }
5037 }
5038
5039 pub fn outdent(&mut self, _: &Outdent, cx: &mut ViewContext<Self>) {
5040 if self.read_only(cx) {
5041 return;
5042 }
5043 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
5044 let selections = self.selections.all::<Point>(cx);
5045 let mut deletion_ranges = Vec::new();
5046 let mut last_outdent = None;
5047 {
5048 let buffer = self.buffer.read(cx);
5049 let snapshot = buffer.snapshot(cx);
5050 for selection in &selections {
5051 let settings = buffer.settings_at(selection.start, cx);
5052 let tab_size = settings.tab_size.get();
5053 let mut rows = selection.spanned_rows(false, &display_map);
5054
5055 // Avoid re-outdenting a row that has already been outdented by a
5056 // previous selection.
5057 if let Some(last_row) = last_outdent {
5058 if last_row == rows.start {
5059 rows.start = rows.start.next_row();
5060 }
5061 }
5062 let has_multiple_rows = rows.len() > 1;
5063 for row in rows.iter_rows() {
5064 let indent_size = snapshot.indent_size_for_line(row);
5065 if indent_size.len > 0 {
5066 let deletion_len = match indent_size.kind {
5067 IndentKind::Space => {
5068 let columns_to_prev_tab_stop = indent_size.len % tab_size;
5069 if columns_to_prev_tab_stop == 0 {
5070 tab_size
5071 } else {
5072 columns_to_prev_tab_stop
5073 }
5074 }
5075 IndentKind::Tab => 1,
5076 };
5077 let start = if has_multiple_rows
5078 || deletion_len > selection.start.column
5079 || indent_size.len < selection.start.column
5080 {
5081 0
5082 } else {
5083 selection.start.column - deletion_len
5084 };
5085 deletion_ranges.push(
5086 Point::new(row.0, start)..Point::new(row.0, start + deletion_len),
5087 );
5088 last_outdent = Some(row);
5089 }
5090 }
5091 }
5092 }
5093
5094 self.transact(cx, |this, cx| {
5095 this.buffer.update(cx, |buffer, cx| {
5096 let empty_str: Arc<str> = "".into();
5097 buffer.edit(
5098 deletion_ranges
5099 .into_iter()
5100 .map(|range| (range, empty_str.clone())),
5101 None,
5102 cx,
5103 );
5104 });
5105 let selections = this.selections.all::<usize>(cx);
5106 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
5107 });
5108 }
5109
5110 pub fn delete_line(&mut self, _: &DeleteLine, cx: &mut ViewContext<Self>) {
5111 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
5112 let selections = self.selections.all::<Point>(cx);
5113
5114 let mut new_cursors = Vec::new();
5115 let mut edit_ranges = Vec::new();
5116 let mut selections = selections.iter().peekable();
5117 while let Some(selection) = selections.next() {
5118 let mut rows = selection.spanned_rows(false, &display_map);
5119 let goal_display_column = selection.head().to_display_point(&display_map).column();
5120
5121 // Accumulate contiguous regions of rows that we want to delete.
5122 while let Some(next_selection) = selections.peek() {
5123 let next_rows = next_selection.spanned_rows(false, &display_map);
5124 if next_rows.start <= rows.end {
5125 rows.end = next_rows.end;
5126 selections.next().unwrap();
5127 } else {
5128 break;
5129 }
5130 }
5131
5132 let buffer = &display_map.buffer_snapshot;
5133 let mut edit_start = Point::new(rows.start.0, 0).to_offset(buffer);
5134 let edit_end;
5135 let cursor_buffer_row;
5136 if buffer.max_point().row >= rows.end.0 {
5137 // If there's a line after the range, delete the \n from the end of the row range
5138 // and position the cursor on the next line.
5139 edit_end = Point::new(rows.end.0, 0).to_offset(buffer);
5140 cursor_buffer_row = rows.end;
5141 } else {
5142 // If there isn't a line after the range, delete the \n from the line before the
5143 // start of the row range and position the cursor there.
5144 edit_start = edit_start.saturating_sub(1);
5145 edit_end = buffer.len();
5146 cursor_buffer_row = rows.start.previous_row();
5147 }
5148
5149 let mut cursor = Point::new(cursor_buffer_row.0, 0).to_display_point(&display_map);
5150 *cursor.column_mut() =
5151 cmp::min(goal_display_column, display_map.line_len(cursor.row()));
5152
5153 new_cursors.push((
5154 selection.id,
5155 buffer.anchor_after(cursor.to_point(&display_map)),
5156 ));
5157 edit_ranges.push(edit_start..edit_end);
5158 }
5159
5160 self.transact(cx, |this, cx| {
5161 let buffer = this.buffer.update(cx, |buffer, cx| {
5162 let empty_str: Arc<str> = "".into();
5163 buffer.edit(
5164 edit_ranges
5165 .into_iter()
5166 .map(|range| (range, empty_str.clone())),
5167 None,
5168 cx,
5169 );
5170 buffer.snapshot(cx)
5171 });
5172 let new_selections = new_cursors
5173 .into_iter()
5174 .map(|(id, cursor)| {
5175 let cursor = cursor.to_point(&buffer);
5176 Selection {
5177 id,
5178 start: cursor,
5179 end: cursor,
5180 reversed: false,
5181 goal: SelectionGoal::None,
5182 }
5183 })
5184 .collect();
5185
5186 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
5187 s.select(new_selections);
5188 });
5189 });
5190 }
5191
5192 pub fn join_lines(&mut self, _: &JoinLines, cx: &mut ViewContext<Self>) {
5193 if self.read_only(cx) {
5194 return;
5195 }
5196 let mut row_ranges = Vec::<Range<MultiBufferRow>>::new();
5197 for selection in self.selections.all::<Point>(cx) {
5198 let start = MultiBufferRow(selection.start.row);
5199 let end = if selection.start.row == selection.end.row {
5200 MultiBufferRow(selection.start.row + 1)
5201 } else {
5202 MultiBufferRow(selection.end.row)
5203 };
5204
5205 if let Some(last_row_range) = row_ranges.last_mut() {
5206 if start <= last_row_range.end {
5207 last_row_range.end = end;
5208 continue;
5209 }
5210 }
5211 row_ranges.push(start..end);
5212 }
5213
5214 let snapshot = self.buffer.read(cx).snapshot(cx);
5215 let mut cursor_positions = Vec::new();
5216 for row_range in &row_ranges {
5217 let anchor = snapshot.anchor_before(Point::new(
5218 row_range.end.previous_row().0,
5219 snapshot.line_len(row_range.end.previous_row()),
5220 ));
5221 cursor_positions.push(anchor..anchor);
5222 }
5223
5224 self.transact(cx, |this, cx| {
5225 for row_range in row_ranges.into_iter().rev() {
5226 for row in row_range.iter_rows().rev() {
5227 let end_of_line = Point::new(row.0, snapshot.line_len(row));
5228 let next_line_row = row.next_row();
5229 let indent = snapshot.indent_size_for_line(next_line_row);
5230 let start_of_next_line = Point::new(next_line_row.0, indent.len);
5231
5232 let replace = if snapshot.line_len(next_line_row) > indent.len {
5233 " "
5234 } else {
5235 ""
5236 };
5237
5238 this.buffer.update(cx, |buffer, cx| {
5239 buffer.edit([(end_of_line..start_of_next_line, replace)], None, cx)
5240 });
5241 }
5242 }
5243
5244 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
5245 s.select_anchor_ranges(cursor_positions)
5246 });
5247 });
5248 }
5249
5250 pub fn sort_lines_case_sensitive(
5251 &mut self,
5252 _: &SortLinesCaseSensitive,
5253 cx: &mut ViewContext<Self>,
5254 ) {
5255 self.manipulate_lines(cx, |lines| lines.sort())
5256 }
5257
5258 pub fn sort_lines_case_insensitive(
5259 &mut self,
5260 _: &SortLinesCaseInsensitive,
5261 cx: &mut ViewContext<Self>,
5262 ) {
5263 self.manipulate_lines(cx, |lines| lines.sort_by_key(|line| line.to_lowercase()))
5264 }
5265
5266 pub fn unique_lines_case_insensitive(
5267 &mut self,
5268 _: &UniqueLinesCaseInsensitive,
5269 cx: &mut ViewContext<Self>,
5270 ) {
5271 self.manipulate_lines(cx, |lines| {
5272 let mut seen = HashSet::default();
5273 lines.retain(|line| seen.insert(line.to_lowercase()));
5274 })
5275 }
5276
5277 pub fn unique_lines_case_sensitive(
5278 &mut self,
5279 _: &UniqueLinesCaseSensitive,
5280 cx: &mut ViewContext<Self>,
5281 ) {
5282 self.manipulate_lines(cx, |lines| {
5283 let mut seen = HashSet::default();
5284 lines.retain(|line| seen.insert(*line));
5285 })
5286 }
5287
5288 pub fn revert_selected_hunks(&mut self, _: &RevertSelectedHunks, cx: &mut ViewContext<Self>) {
5289 let revert_changes = self.gather_revert_changes(&self.selections.disjoint_anchors(), cx);
5290 if !revert_changes.is_empty() {
5291 self.transact(cx, |editor, cx| {
5292 editor.buffer().update(cx, |multi_buffer, cx| {
5293 for (buffer_id, changes) in revert_changes {
5294 if let Some(buffer) = multi_buffer.buffer(buffer_id) {
5295 buffer.update(cx, |buffer, cx| {
5296 buffer.edit(
5297 changes.into_iter().map(|(range, text)| {
5298 (range, text.to_string().map(Arc::<str>::from))
5299 }),
5300 None,
5301 cx,
5302 );
5303 });
5304 }
5305 }
5306 });
5307 editor.change_selections(None, cx, |selections| selections.refresh());
5308 });
5309 }
5310 }
5311
5312 pub fn open_active_item_in_terminal(&mut self, _: &OpenInTerminal, cx: &mut ViewContext<Self>) {
5313 if let Some(working_directory) = self.active_excerpt(cx).and_then(|(_, buffer, _)| {
5314 let project_path = buffer.read(cx).project_path(cx)?;
5315 let project = self.project.as_ref()?.read(cx);
5316 let entry = project.entry_for_path(&project_path, cx)?;
5317 let abs_path = project.absolute_path(&project_path, cx)?;
5318 let parent = if entry.is_symlink {
5319 abs_path.canonicalize().ok()?
5320 } else {
5321 abs_path
5322 }
5323 .parent()?
5324 .to_path_buf();
5325 Some(parent)
5326 }) {
5327 cx.dispatch_action(OpenTerminal { working_directory }.boxed_clone());
5328 }
5329 }
5330
5331 fn gather_revert_changes(
5332 &mut self,
5333 selections: &[Selection<Anchor>],
5334 cx: &mut ViewContext<'_, Editor>,
5335 ) -> HashMap<BufferId, Vec<(Range<text::Anchor>, Rope)>> {
5336 let mut revert_changes = HashMap::default();
5337 self.buffer.update(cx, |multi_buffer, cx| {
5338 let multi_buffer_snapshot = multi_buffer.snapshot(cx);
5339 for hunk in hunks_for_selections(&multi_buffer_snapshot, selections) {
5340 Self::prepare_revert_change(&mut revert_changes, &multi_buffer, &hunk, cx);
5341 }
5342 });
5343 revert_changes
5344 }
5345
5346 fn prepare_revert_change(
5347 revert_changes: &mut HashMap<BufferId, Vec<(Range<text::Anchor>, Rope)>>,
5348 multi_buffer: &MultiBuffer,
5349 hunk: &DiffHunk<MultiBufferRow>,
5350 cx: &mut AppContext,
5351 ) -> Option<()> {
5352 let buffer = multi_buffer.buffer(hunk.buffer_id)?;
5353 let buffer = buffer.read(cx);
5354 let original_text = buffer.diff_base()?.slice(hunk.diff_base_byte_range.clone());
5355 let buffer_snapshot = buffer.snapshot();
5356 let buffer_revert_changes = revert_changes.entry(buffer.remote_id()).or_default();
5357 if let Err(i) = buffer_revert_changes.binary_search_by(|probe| {
5358 probe
5359 .0
5360 .start
5361 .cmp(&hunk.buffer_range.start, &buffer_snapshot)
5362 .then(probe.0.end.cmp(&hunk.buffer_range.end, &buffer_snapshot))
5363 }) {
5364 buffer_revert_changes.insert(i, (hunk.buffer_range.clone(), original_text));
5365 Some(())
5366 } else {
5367 None
5368 }
5369 }
5370
5371 pub fn reverse_lines(&mut self, _: &ReverseLines, cx: &mut ViewContext<Self>) {
5372 self.manipulate_lines(cx, |lines| lines.reverse())
5373 }
5374
5375 pub fn shuffle_lines(&mut self, _: &ShuffleLines, cx: &mut ViewContext<Self>) {
5376 self.manipulate_lines(cx, |lines| lines.shuffle(&mut thread_rng()))
5377 }
5378
5379 fn manipulate_lines<Fn>(&mut self, cx: &mut ViewContext<Self>, mut callback: Fn)
5380 where
5381 Fn: FnMut(&mut Vec<&str>),
5382 {
5383 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
5384 let buffer = self.buffer.read(cx).snapshot(cx);
5385
5386 let mut edits = Vec::new();
5387
5388 let selections = self.selections.all::<Point>(cx);
5389 let mut selections = selections.iter().peekable();
5390 let mut contiguous_row_selections = Vec::new();
5391 let mut new_selections = Vec::new();
5392 let mut added_lines = 0;
5393 let mut removed_lines = 0;
5394
5395 while let Some(selection) = selections.next() {
5396 let (start_row, end_row) = consume_contiguous_rows(
5397 &mut contiguous_row_selections,
5398 selection,
5399 &display_map,
5400 &mut selections,
5401 );
5402
5403 let start_point = Point::new(start_row.0, 0);
5404 let end_point = Point::new(
5405 end_row.previous_row().0,
5406 buffer.line_len(end_row.previous_row()),
5407 );
5408 let text = buffer
5409 .text_for_range(start_point..end_point)
5410 .collect::<String>();
5411
5412 let mut lines = text.split('\n').collect_vec();
5413
5414 let lines_before = lines.len();
5415 callback(&mut lines);
5416 let lines_after = lines.len();
5417
5418 edits.push((start_point..end_point, lines.join("\n")));
5419
5420 // Selections must change based on added and removed line count
5421 let start_row =
5422 MultiBufferRow(start_point.row + added_lines as u32 - removed_lines as u32);
5423 let end_row = MultiBufferRow(start_row.0 + lines_after.saturating_sub(1) as u32);
5424 new_selections.push(Selection {
5425 id: selection.id,
5426 start: start_row,
5427 end: end_row,
5428 goal: SelectionGoal::None,
5429 reversed: selection.reversed,
5430 });
5431
5432 if lines_after > lines_before {
5433 added_lines += lines_after - lines_before;
5434 } else if lines_before > lines_after {
5435 removed_lines += lines_before - lines_after;
5436 }
5437 }
5438
5439 self.transact(cx, |this, cx| {
5440 let buffer = this.buffer.update(cx, |buffer, cx| {
5441 buffer.edit(edits, None, cx);
5442 buffer.snapshot(cx)
5443 });
5444
5445 // Recalculate offsets on newly edited buffer
5446 let new_selections = new_selections
5447 .iter()
5448 .map(|s| {
5449 let start_point = Point::new(s.start.0, 0);
5450 let end_point = Point::new(s.end.0, buffer.line_len(s.end));
5451 Selection {
5452 id: s.id,
5453 start: buffer.point_to_offset(start_point),
5454 end: buffer.point_to_offset(end_point),
5455 goal: s.goal,
5456 reversed: s.reversed,
5457 }
5458 })
5459 .collect();
5460
5461 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
5462 s.select(new_selections);
5463 });
5464
5465 this.request_autoscroll(Autoscroll::fit(), cx);
5466 });
5467 }
5468
5469 pub fn convert_to_upper_case(&mut self, _: &ConvertToUpperCase, cx: &mut ViewContext<Self>) {
5470 self.manipulate_text(cx, |text| text.to_uppercase())
5471 }
5472
5473 pub fn convert_to_lower_case(&mut self, _: &ConvertToLowerCase, cx: &mut ViewContext<Self>) {
5474 self.manipulate_text(cx, |text| text.to_lowercase())
5475 }
5476
5477 pub fn convert_to_title_case(&mut self, _: &ConvertToTitleCase, cx: &mut ViewContext<Self>) {
5478 self.manipulate_text(cx, |text| {
5479 // Hack to get around the fact that to_case crate doesn't support '\n' as a word boundary
5480 // https://github.com/rutrum/convert-case/issues/16
5481 text.split('\n')
5482 .map(|line| line.to_case(Case::Title))
5483 .join("\n")
5484 })
5485 }
5486
5487 pub fn convert_to_snake_case(&mut self, _: &ConvertToSnakeCase, cx: &mut ViewContext<Self>) {
5488 self.manipulate_text(cx, |text| text.to_case(Case::Snake))
5489 }
5490
5491 pub fn convert_to_kebab_case(&mut self, _: &ConvertToKebabCase, cx: &mut ViewContext<Self>) {
5492 self.manipulate_text(cx, |text| text.to_case(Case::Kebab))
5493 }
5494
5495 pub fn convert_to_upper_camel_case(
5496 &mut self,
5497 _: &ConvertToUpperCamelCase,
5498 cx: &mut ViewContext<Self>,
5499 ) {
5500 self.manipulate_text(cx, |text| {
5501 // Hack to get around the fact that to_case crate doesn't support '\n' as a word boundary
5502 // https://github.com/rutrum/convert-case/issues/16
5503 text.split('\n')
5504 .map(|line| line.to_case(Case::UpperCamel))
5505 .join("\n")
5506 })
5507 }
5508
5509 pub fn convert_to_lower_camel_case(
5510 &mut self,
5511 _: &ConvertToLowerCamelCase,
5512 cx: &mut ViewContext<Self>,
5513 ) {
5514 self.manipulate_text(cx, |text| text.to_case(Case::Camel))
5515 }
5516
5517 pub fn convert_to_opposite_case(
5518 &mut self,
5519 _: &ConvertToOppositeCase,
5520 cx: &mut ViewContext<Self>,
5521 ) {
5522 self.manipulate_text(cx, |text| {
5523 text.chars()
5524 .fold(String::with_capacity(text.len()), |mut t, c| {
5525 if c.is_uppercase() {
5526 t.extend(c.to_lowercase());
5527 } else {
5528 t.extend(c.to_uppercase());
5529 }
5530 t
5531 })
5532 })
5533 }
5534
5535 fn manipulate_text<Fn>(&mut self, cx: &mut ViewContext<Self>, mut callback: Fn)
5536 where
5537 Fn: FnMut(&str) -> String,
5538 {
5539 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
5540 let buffer = self.buffer.read(cx).snapshot(cx);
5541
5542 let mut new_selections = Vec::new();
5543 let mut edits = Vec::new();
5544 let mut selection_adjustment = 0i32;
5545
5546 for selection in self.selections.all::<usize>(cx) {
5547 let selection_is_empty = selection.is_empty();
5548
5549 let (start, end) = if selection_is_empty {
5550 let word_range = movement::surrounding_word(
5551 &display_map,
5552 selection.start.to_display_point(&display_map),
5553 );
5554 let start = word_range.start.to_offset(&display_map, Bias::Left);
5555 let end = word_range.end.to_offset(&display_map, Bias::Left);
5556 (start, end)
5557 } else {
5558 (selection.start, selection.end)
5559 };
5560
5561 let text = buffer.text_for_range(start..end).collect::<String>();
5562 let old_length = text.len() as i32;
5563 let text = callback(&text);
5564
5565 new_selections.push(Selection {
5566 start: (start as i32 - selection_adjustment) as usize,
5567 end: ((start + text.len()) as i32 - selection_adjustment) as usize,
5568 goal: SelectionGoal::None,
5569 ..selection
5570 });
5571
5572 selection_adjustment += old_length - text.len() as i32;
5573
5574 edits.push((start..end, text));
5575 }
5576
5577 self.transact(cx, |this, cx| {
5578 this.buffer.update(cx, |buffer, cx| {
5579 buffer.edit(edits, None, cx);
5580 });
5581
5582 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
5583 s.select(new_selections);
5584 });
5585
5586 this.request_autoscroll(Autoscroll::fit(), cx);
5587 });
5588 }
5589
5590 pub fn duplicate_line(&mut self, upwards: bool, cx: &mut ViewContext<Self>) {
5591 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
5592 let buffer = &display_map.buffer_snapshot;
5593 let selections = self.selections.all::<Point>(cx);
5594
5595 let mut edits = Vec::new();
5596 let mut selections_iter = selections.iter().peekable();
5597 while let Some(selection) = selections_iter.next() {
5598 // Avoid duplicating the same lines twice.
5599 let mut rows = selection.spanned_rows(false, &display_map);
5600
5601 while let Some(next_selection) = selections_iter.peek() {
5602 let next_rows = next_selection.spanned_rows(false, &display_map);
5603 if next_rows.start < rows.end {
5604 rows.end = next_rows.end;
5605 selections_iter.next().unwrap();
5606 } else {
5607 break;
5608 }
5609 }
5610
5611 // Copy the text from the selected row region and splice it either at the start
5612 // or end of the region.
5613 let start = Point::new(rows.start.0, 0);
5614 let end = Point::new(
5615 rows.end.previous_row().0,
5616 buffer.line_len(rows.end.previous_row()),
5617 );
5618 let text = buffer
5619 .text_for_range(start..end)
5620 .chain(Some("\n"))
5621 .collect::<String>();
5622 let insert_location = if upwards {
5623 Point::new(rows.end.0, 0)
5624 } else {
5625 start
5626 };
5627 edits.push((insert_location..insert_location, text));
5628 }
5629
5630 self.transact(cx, |this, cx| {
5631 this.buffer.update(cx, |buffer, cx| {
5632 buffer.edit(edits, None, cx);
5633 });
5634
5635 this.request_autoscroll(Autoscroll::fit(), cx);
5636 });
5637 }
5638
5639 pub fn duplicate_line_up(&mut self, _: &DuplicateLineUp, cx: &mut ViewContext<Self>) {
5640 self.duplicate_line(true, cx);
5641 }
5642
5643 pub fn duplicate_line_down(&mut self, _: &DuplicateLineDown, cx: &mut ViewContext<Self>) {
5644 self.duplicate_line(false, cx);
5645 }
5646
5647 pub fn move_line_up(&mut self, _: &MoveLineUp, cx: &mut ViewContext<Self>) {
5648 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
5649 let buffer = self.buffer.read(cx).snapshot(cx);
5650
5651 let mut edits = Vec::new();
5652 let mut unfold_ranges = Vec::new();
5653 let mut refold_ranges = Vec::new();
5654
5655 let selections = self.selections.all::<Point>(cx);
5656 let mut selections = selections.iter().peekable();
5657 let mut contiguous_row_selections = Vec::new();
5658 let mut new_selections = Vec::new();
5659
5660 while let Some(selection) = selections.next() {
5661 // Find all the selections that span a contiguous row range
5662 let (start_row, end_row) = consume_contiguous_rows(
5663 &mut contiguous_row_selections,
5664 selection,
5665 &display_map,
5666 &mut selections,
5667 );
5668
5669 // Move the text spanned by the row range to be before the line preceding the row range
5670 if start_row.0 > 0 {
5671 let range_to_move = Point::new(
5672 start_row.previous_row().0,
5673 buffer.line_len(start_row.previous_row()),
5674 )
5675 ..Point::new(
5676 end_row.previous_row().0,
5677 buffer.line_len(end_row.previous_row()),
5678 );
5679 let insertion_point = display_map
5680 .prev_line_boundary(Point::new(start_row.previous_row().0, 0))
5681 .0;
5682
5683 // Don't move lines across excerpts
5684 if buffer
5685 .excerpt_boundaries_in_range((
5686 Bound::Excluded(insertion_point),
5687 Bound::Included(range_to_move.end),
5688 ))
5689 .next()
5690 .is_none()
5691 {
5692 let text = buffer
5693 .text_for_range(range_to_move.clone())
5694 .flat_map(|s| s.chars())
5695 .skip(1)
5696 .chain(['\n'])
5697 .collect::<String>();
5698
5699 edits.push((
5700 buffer.anchor_after(range_to_move.start)
5701 ..buffer.anchor_before(range_to_move.end),
5702 String::new(),
5703 ));
5704 let insertion_anchor = buffer.anchor_after(insertion_point);
5705 edits.push((insertion_anchor..insertion_anchor, text));
5706
5707 let row_delta = range_to_move.start.row - insertion_point.row + 1;
5708
5709 // Move selections up
5710 new_selections.extend(contiguous_row_selections.drain(..).map(
5711 |mut selection| {
5712 selection.start.row -= row_delta;
5713 selection.end.row -= row_delta;
5714 selection
5715 },
5716 ));
5717
5718 // Move folds up
5719 unfold_ranges.push(range_to_move.clone());
5720 for fold in display_map.folds_in_range(
5721 buffer.anchor_before(range_to_move.start)
5722 ..buffer.anchor_after(range_to_move.end),
5723 ) {
5724 let mut start = fold.range.start.to_point(&buffer);
5725 let mut end = fold.range.end.to_point(&buffer);
5726 start.row -= row_delta;
5727 end.row -= row_delta;
5728 refold_ranges.push(start..end);
5729 }
5730 }
5731 }
5732
5733 // If we didn't move line(s), preserve the existing selections
5734 new_selections.append(&mut contiguous_row_selections);
5735 }
5736
5737 self.transact(cx, |this, cx| {
5738 this.unfold_ranges(unfold_ranges, true, true, cx);
5739 this.buffer.update(cx, |buffer, cx| {
5740 for (range, text) in edits {
5741 buffer.edit([(range, text)], None, cx);
5742 }
5743 });
5744 this.fold_ranges(refold_ranges, true, cx);
5745 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
5746 s.select(new_selections);
5747 })
5748 });
5749 }
5750
5751 pub fn move_line_down(&mut self, _: &MoveLineDown, cx: &mut ViewContext<Self>) {
5752 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
5753 let buffer = self.buffer.read(cx).snapshot(cx);
5754
5755 let mut edits = Vec::new();
5756 let mut unfold_ranges = Vec::new();
5757 let mut refold_ranges = Vec::new();
5758
5759 let selections = self.selections.all::<Point>(cx);
5760 let mut selections = selections.iter().peekable();
5761 let mut contiguous_row_selections = Vec::new();
5762 let mut new_selections = Vec::new();
5763
5764 while let Some(selection) = selections.next() {
5765 // Find all the selections that span a contiguous row range
5766 let (start_row, end_row) = consume_contiguous_rows(
5767 &mut contiguous_row_selections,
5768 selection,
5769 &display_map,
5770 &mut selections,
5771 );
5772
5773 // Move the text spanned by the row range to be after the last line of the row range
5774 if end_row.0 <= buffer.max_point().row {
5775 let range_to_move =
5776 MultiBufferPoint::new(start_row.0, 0)..MultiBufferPoint::new(end_row.0, 0);
5777 let insertion_point = display_map
5778 .next_line_boundary(MultiBufferPoint::new(end_row.0, 0))
5779 .0;
5780
5781 // Don't move lines across excerpt boundaries
5782 if buffer
5783 .excerpt_boundaries_in_range((
5784 Bound::Excluded(range_to_move.start),
5785 Bound::Included(insertion_point),
5786 ))
5787 .next()
5788 .is_none()
5789 {
5790 let mut text = String::from("\n");
5791 text.extend(buffer.text_for_range(range_to_move.clone()));
5792 text.pop(); // Drop trailing newline
5793 edits.push((
5794 buffer.anchor_after(range_to_move.start)
5795 ..buffer.anchor_before(range_to_move.end),
5796 String::new(),
5797 ));
5798 let insertion_anchor = buffer.anchor_after(insertion_point);
5799 edits.push((insertion_anchor..insertion_anchor, text));
5800
5801 let row_delta = insertion_point.row - range_to_move.end.row + 1;
5802
5803 // Move selections down
5804 new_selections.extend(contiguous_row_selections.drain(..).map(
5805 |mut selection| {
5806 selection.start.row += row_delta;
5807 selection.end.row += row_delta;
5808 selection
5809 },
5810 ));
5811
5812 // Move folds down
5813 unfold_ranges.push(range_to_move.clone());
5814 for fold in display_map.folds_in_range(
5815 buffer.anchor_before(range_to_move.start)
5816 ..buffer.anchor_after(range_to_move.end),
5817 ) {
5818 let mut start = fold.range.start.to_point(&buffer);
5819 let mut end = fold.range.end.to_point(&buffer);
5820 start.row += row_delta;
5821 end.row += row_delta;
5822 refold_ranges.push(start..end);
5823 }
5824 }
5825 }
5826
5827 // If we didn't move line(s), preserve the existing selections
5828 new_selections.append(&mut contiguous_row_selections);
5829 }
5830
5831 self.transact(cx, |this, cx| {
5832 this.unfold_ranges(unfold_ranges, true, true, cx);
5833 this.buffer.update(cx, |buffer, cx| {
5834 for (range, text) in edits {
5835 buffer.edit([(range, text)], None, cx);
5836 }
5837 });
5838 this.fold_ranges(refold_ranges, true, cx);
5839 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(new_selections));
5840 });
5841 }
5842
5843 pub fn transpose(&mut self, _: &Transpose, cx: &mut ViewContext<Self>) {
5844 let text_layout_details = &self.text_layout_details(cx);
5845 self.transact(cx, |this, cx| {
5846 let edits = this.change_selections(Some(Autoscroll::fit()), cx, |s| {
5847 let mut edits: Vec<(Range<usize>, String)> = Default::default();
5848 let line_mode = s.line_mode;
5849 s.move_with(|display_map, selection| {
5850 if !selection.is_empty() || line_mode {
5851 return;
5852 }
5853
5854 let mut head = selection.head();
5855 let mut transpose_offset = head.to_offset(display_map, Bias::Right);
5856 if head.column() == display_map.line_len(head.row()) {
5857 transpose_offset = display_map
5858 .buffer_snapshot
5859 .clip_offset(transpose_offset.saturating_sub(1), Bias::Left);
5860 }
5861
5862 if transpose_offset == 0 {
5863 return;
5864 }
5865
5866 *head.column_mut() += 1;
5867 head = display_map.clip_point(head, Bias::Right);
5868 let goal = SelectionGoal::HorizontalPosition(
5869 display_map
5870 .x_for_display_point(head, &text_layout_details)
5871 .into(),
5872 );
5873 selection.collapse_to(head, goal);
5874
5875 let transpose_start = display_map
5876 .buffer_snapshot
5877 .clip_offset(transpose_offset.saturating_sub(1), Bias::Left);
5878 if edits.last().map_or(true, |e| e.0.end <= transpose_start) {
5879 let transpose_end = display_map
5880 .buffer_snapshot
5881 .clip_offset(transpose_offset + 1, Bias::Right);
5882 if let Some(ch) =
5883 display_map.buffer_snapshot.chars_at(transpose_start).next()
5884 {
5885 edits.push((transpose_start..transpose_offset, String::new()));
5886 edits.push((transpose_end..transpose_end, ch.to_string()));
5887 }
5888 }
5889 });
5890 edits
5891 });
5892 this.buffer
5893 .update(cx, |buffer, cx| buffer.edit(edits, None, cx));
5894 let selections = this.selections.all::<usize>(cx);
5895 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
5896 s.select(selections);
5897 });
5898 });
5899 }
5900
5901 pub fn cut(&mut self, _: &Cut, cx: &mut ViewContext<Self>) {
5902 let mut text = String::new();
5903 let buffer = self.buffer.read(cx).snapshot(cx);
5904 let mut selections = self.selections.all::<Point>(cx);
5905 let mut clipboard_selections = Vec::with_capacity(selections.len());
5906 {
5907 let max_point = buffer.max_point();
5908 let mut is_first = true;
5909 for selection in &mut selections {
5910 let is_entire_line = selection.is_empty() || self.selections.line_mode;
5911 if is_entire_line {
5912 selection.start = Point::new(selection.start.row, 0);
5913 selection.end = cmp::min(max_point, Point::new(selection.end.row + 1, 0));
5914 selection.goal = SelectionGoal::None;
5915 }
5916 if is_first {
5917 is_first = false;
5918 } else {
5919 text += "\n";
5920 }
5921 let mut len = 0;
5922 for chunk in buffer.text_for_range(selection.start..selection.end) {
5923 text.push_str(chunk);
5924 len += chunk.len();
5925 }
5926 clipboard_selections.push(ClipboardSelection {
5927 len,
5928 is_entire_line,
5929 first_line_indent: buffer
5930 .indent_size_for_line(MultiBufferRow(selection.start.row))
5931 .len,
5932 });
5933 }
5934 }
5935
5936 self.transact(cx, |this, cx| {
5937 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
5938 s.select(selections);
5939 });
5940 this.insert("", cx);
5941 cx.write_to_clipboard(ClipboardItem::new(text).with_metadata(clipboard_selections));
5942 });
5943 }
5944
5945 pub fn copy(&mut self, _: &Copy, cx: &mut ViewContext<Self>) {
5946 let selections = self.selections.all::<Point>(cx);
5947 let buffer = self.buffer.read(cx).read(cx);
5948 let mut text = String::new();
5949
5950 let mut clipboard_selections = Vec::with_capacity(selections.len());
5951 {
5952 let max_point = buffer.max_point();
5953 let mut is_first = true;
5954 for selection in selections.iter() {
5955 let mut start = selection.start;
5956 let mut end = selection.end;
5957 let is_entire_line = selection.is_empty() || self.selections.line_mode;
5958 if is_entire_line {
5959 start = Point::new(start.row, 0);
5960 end = cmp::min(max_point, Point::new(end.row + 1, 0));
5961 }
5962 if is_first {
5963 is_first = false;
5964 } else {
5965 text += "\n";
5966 }
5967 let mut len = 0;
5968 for chunk in buffer.text_for_range(start..end) {
5969 text.push_str(chunk);
5970 len += chunk.len();
5971 }
5972 clipboard_selections.push(ClipboardSelection {
5973 len,
5974 is_entire_line,
5975 first_line_indent: buffer.indent_size_for_line(MultiBufferRow(start.row)).len,
5976 });
5977 }
5978 }
5979
5980 cx.write_to_clipboard(ClipboardItem::new(text).with_metadata(clipboard_selections));
5981 }
5982
5983 pub fn paste(&mut self, _: &Paste, cx: &mut ViewContext<Self>) {
5984 if self.read_only(cx) {
5985 return;
5986 }
5987
5988 self.transact(cx, |this, cx| {
5989 if let Some(item) = cx.read_from_clipboard() {
5990 let clipboard_text = Cow::Borrowed(item.text());
5991 if let Some(mut clipboard_selections) = item.metadata::<Vec<ClipboardSelection>>() {
5992 let old_selections = this.selections.all::<usize>(cx);
5993 let all_selections_were_entire_line =
5994 clipboard_selections.iter().all(|s| s.is_entire_line);
5995 let first_selection_indent_column =
5996 clipboard_selections.first().map(|s| s.first_line_indent);
5997 if clipboard_selections.len() != old_selections.len() {
5998 clipboard_selections.drain(..);
5999 }
6000
6001 this.buffer.update(cx, |buffer, cx| {
6002 let snapshot = buffer.read(cx);
6003 let mut start_offset = 0;
6004 let mut edits = Vec::new();
6005 let mut original_indent_columns = Vec::new();
6006 let line_mode = this.selections.line_mode;
6007 for (ix, selection) in old_selections.iter().enumerate() {
6008 let to_insert;
6009 let entire_line;
6010 let original_indent_column;
6011 if let Some(clipboard_selection) = clipboard_selections.get(ix) {
6012 let end_offset = start_offset + clipboard_selection.len;
6013 to_insert = &clipboard_text[start_offset..end_offset];
6014 entire_line = clipboard_selection.is_entire_line;
6015 start_offset = end_offset + 1;
6016 original_indent_column =
6017 Some(clipboard_selection.first_line_indent);
6018 } else {
6019 to_insert = clipboard_text.as_str();
6020 entire_line = all_selections_were_entire_line;
6021 original_indent_column = first_selection_indent_column
6022 }
6023
6024 // If the corresponding selection was empty when this slice of the
6025 // clipboard text was written, then the entire line containing the
6026 // selection was copied. If this selection is also currently empty,
6027 // then paste the line before the current line of the buffer.
6028 let range = if selection.is_empty() && !line_mode && entire_line {
6029 let column = selection.start.to_point(&snapshot).column as usize;
6030 let line_start = selection.start - column;
6031 line_start..line_start
6032 } else {
6033 selection.range()
6034 };
6035
6036 edits.push((range, to_insert));
6037 original_indent_columns.extend(original_indent_column);
6038 }
6039 drop(snapshot);
6040
6041 buffer.edit(
6042 edits,
6043 Some(AutoindentMode::Block {
6044 original_indent_columns,
6045 }),
6046 cx,
6047 );
6048 });
6049
6050 let selections = this.selections.all::<usize>(cx);
6051 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
6052 } else {
6053 this.insert(&clipboard_text, cx);
6054 }
6055 }
6056 });
6057 }
6058
6059 pub fn undo(&mut self, _: &Undo, cx: &mut ViewContext<Self>) {
6060 if self.read_only(cx) {
6061 return;
6062 }
6063
6064 if let Some(tx_id) = self.buffer.update(cx, |buffer, cx| buffer.undo(cx)) {
6065 if let Some((selections, _)) = self.selection_history.transaction(tx_id).cloned() {
6066 self.change_selections(None, cx, |s| {
6067 s.select_anchors(selections.to_vec());
6068 });
6069 }
6070 self.request_autoscroll(Autoscroll::fit(), cx);
6071 self.unmark_text(cx);
6072 self.refresh_inline_completion(true, cx);
6073 cx.emit(EditorEvent::Edited);
6074 cx.emit(EditorEvent::TransactionUndone {
6075 transaction_id: tx_id,
6076 });
6077 }
6078 }
6079
6080 pub fn redo(&mut self, _: &Redo, cx: &mut ViewContext<Self>) {
6081 if self.read_only(cx) {
6082 return;
6083 }
6084
6085 if let Some(tx_id) = self.buffer.update(cx, |buffer, cx| buffer.redo(cx)) {
6086 if let Some((_, Some(selections))) = self.selection_history.transaction(tx_id).cloned()
6087 {
6088 self.change_selections(None, cx, |s| {
6089 s.select_anchors(selections.to_vec());
6090 });
6091 }
6092 self.request_autoscroll(Autoscroll::fit(), cx);
6093 self.unmark_text(cx);
6094 self.refresh_inline_completion(true, cx);
6095 cx.emit(EditorEvent::Edited);
6096 }
6097 }
6098
6099 pub fn finalize_last_transaction(&mut self, cx: &mut ViewContext<Self>) {
6100 self.buffer
6101 .update(cx, |buffer, cx| buffer.finalize_last_transaction(cx));
6102 }
6103
6104 pub fn group_until_transaction(&mut self, tx_id: TransactionId, cx: &mut ViewContext<Self>) {
6105 self.buffer
6106 .update(cx, |buffer, cx| buffer.group_until_transaction(tx_id, cx));
6107 }
6108
6109 pub fn move_left(&mut self, _: &MoveLeft, cx: &mut ViewContext<Self>) {
6110 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6111 let line_mode = s.line_mode;
6112 s.move_with(|map, selection| {
6113 let cursor = if selection.is_empty() && !line_mode {
6114 movement::left(map, selection.start)
6115 } else {
6116 selection.start
6117 };
6118 selection.collapse_to(cursor, SelectionGoal::None);
6119 });
6120 })
6121 }
6122
6123 pub fn select_left(&mut self, _: &SelectLeft, cx: &mut ViewContext<Self>) {
6124 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6125 s.move_heads_with(|map, head, _| (movement::left(map, head), SelectionGoal::None));
6126 })
6127 }
6128
6129 pub fn move_right(&mut self, _: &MoveRight, cx: &mut ViewContext<Self>) {
6130 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6131 let line_mode = s.line_mode;
6132 s.move_with(|map, selection| {
6133 let cursor = if selection.is_empty() && !line_mode {
6134 movement::right(map, selection.end)
6135 } else {
6136 selection.end
6137 };
6138 selection.collapse_to(cursor, SelectionGoal::None)
6139 });
6140 })
6141 }
6142
6143 pub fn select_right(&mut self, _: &SelectRight, cx: &mut ViewContext<Self>) {
6144 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6145 s.move_heads_with(|map, head, _| (movement::right(map, head), SelectionGoal::None));
6146 })
6147 }
6148
6149 pub fn move_up(&mut self, _: &MoveUp, cx: &mut ViewContext<Self>) {
6150 if self.take_rename(true, cx).is_some() {
6151 return;
6152 }
6153
6154 if matches!(self.mode, EditorMode::SingleLine) {
6155 cx.propagate();
6156 return;
6157 }
6158
6159 let text_layout_details = &self.text_layout_details(cx);
6160
6161 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6162 let line_mode = s.line_mode;
6163 s.move_with(|map, selection| {
6164 if !selection.is_empty() && !line_mode {
6165 selection.goal = SelectionGoal::None;
6166 }
6167 let (cursor, goal) = movement::up(
6168 map,
6169 selection.start,
6170 selection.goal,
6171 false,
6172 &text_layout_details,
6173 );
6174 selection.collapse_to(cursor, goal);
6175 });
6176 })
6177 }
6178
6179 pub fn move_up_by_lines(&mut self, action: &MoveUpByLines, cx: &mut ViewContext<Self>) {
6180 if self.take_rename(true, cx).is_some() {
6181 return;
6182 }
6183
6184 if matches!(self.mode, EditorMode::SingleLine) {
6185 cx.propagate();
6186 return;
6187 }
6188
6189 let text_layout_details = &self.text_layout_details(cx);
6190
6191 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6192 let line_mode = s.line_mode;
6193 s.move_with(|map, selection| {
6194 if !selection.is_empty() && !line_mode {
6195 selection.goal = SelectionGoal::None;
6196 }
6197 let (cursor, goal) = movement::up_by_rows(
6198 map,
6199 selection.start,
6200 action.lines,
6201 selection.goal,
6202 false,
6203 &text_layout_details,
6204 );
6205 selection.collapse_to(cursor, goal);
6206 });
6207 })
6208 }
6209
6210 pub fn move_down_by_lines(&mut self, action: &MoveDownByLines, cx: &mut ViewContext<Self>) {
6211 if self.take_rename(true, cx).is_some() {
6212 return;
6213 }
6214
6215 if matches!(self.mode, EditorMode::SingleLine) {
6216 cx.propagate();
6217 return;
6218 }
6219
6220 let text_layout_details = &self.text_layout_details(cx);
6221
6222 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6223 let line_mode = s.line_mode;
6224 s.move_with(|map, selection| {
6225 if !selection.is_empty() && !line_mode {
6226 selection.goal = SelectionGoal::None;
6227 }
6228 let (cursor, goal) = movement::down_by_rows(
6229 map,
6230 selection.start,
6231 action.lines,
6232 selection.goal,
6233 false,
6234 &text_layout_details,
6235 );
6236 selection.collapse_to(cursor, goal);
6237 });
6238 })
6239 }
6240
6241 pub fn select_down_by_lines(&mut self, action: &SelectDownByLines, cx: &mut ViewContext<Self>) {
6242 let text_layout_details = &self.text_layout_details(cx);
6243 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6244 s.move_heads_with(|map, head, goal| {
6245 movement::down_by_rows(map, head, action.lines, goal, false, &text_layout_details)
6246 })
6247 })
6248 }
6249
6250 pub fn select_up_by_lines(&mut self, action: &SelectUpByLines, cx: &mut ViewContext<Self>) {
6251 let text_layout_details = &self.text_layout_details(cx);
6252 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6253 s.move_heads_with(|map, head, goal| {
6254 movement::up_by_rows(map, head, action.lines, goal, false, &text_layout_details)
6255 })
6256 })
6257 }
6258
6259 pub fn move_page_up(&mut self, action: &MovePageUp, cx: &mut ViewContext<Self>) {
6260 if self.take_rename(true, cx).is_some() {
6261 return;
6262 }
6263
6264 if matches!(self.mode, EditorMode::SingleLine) {
6265 cx.propagate();
6266 return;
6267 }
6268
6269 let row_count = if let Some(row_count) = self.visible_line_count() {
6270 row_count as u32 - 1
6271 } else {
6272 return;
6273 };
6274
6275 let autoscroll = if action.center_cursor {
6276 Autoscroll::center()
6277 } else {
6278 Autoscroll::fit()
6279 };
6280
6281 let text_layout_details = &self.text_layout_details(cx);
6282
6283 self.change_selections(Some(autoscroll), cx, |s| {
6284 let line_mode = s.line_mode;
6285 s.move_with(|map, selection| {
6286 if !selection.is_empty() && !line_mode {
6287 selection.goal = SelectionGoal::None;
6288 }
6289 let (cursor, goal) = movement::up_by_rows(
6290 map,
6291 selection.end,
6292 row_count,
6293 selection.goal,
6294 false,
6295 &text_layout_details,
6296 );
6297 selection.collapse_to(cursor, goal);
6298 });
6299 });
6300 }
6301
6302 pub fn select_up(&mut self, _: &SelectUp, cx: &mut ViewContext<Self>) {
6303 let text_layout_details = &self.text_layout_details(cx);
6304 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6305 s.move_heads_with(|map, head, goal| {
6306 movement::up(map, head, goal, false, &text_layout_details)
6307 })
6308 })
6309 }
6310
6311 pub fn move_down(&mut self, _: &MoveDown, cx: &mut ViewContext<Self>) {
6312 self.take_rename(true, cx);
6313
6314 if self.mode == EditorMode::SingleLine {
6315 cx.propagate();
6316 return;
6317 }
6318
6319 let text_layout_details = &self.text_layout_details(cx);
6320 self.change_selections(Some(Autoscroll::fit()), 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::down(
6327 map,
6328 selection.end,
6329 selection.goal,
6330 false,
6331 &text_layout_details,
6332 );
6333 selection.collapse_to(cursor, goal);
6334 });
6335 });
6336 }
6337
6338 pub fn move_page_down(&mut self, action: &MovePageDown, cx: &mut ViewContext<Self>) {
6339 if self.take_rename(true, cx).is_some() {
6340 return;
6341 }
6342
6343 if self
6344 .context_menu
6345 .write()
6346 .as_mut()
6347 .map(|menu| menu.select_last(self.project.as_ref(), cx))
6348 .unwrap_or(false)
6349 {
6350 return;
6351 }
6352
6353 if matches!(self.mode, EditorMode::SingleLine) {
6354 cx.propagate();
6355 return;
6356 }
6357
6358 let row_count = if let Some(row_count) = self.visible_line_count() {
6359 row_count as u32 - 1
6360 } else {
6361 return;
6362 };
6363
6364 let autoscroll = if action.center_cursor {
6365 Autoscroll::center()
6366 } else {
6367 Autoscroll::fit()
6368 };
6369
6370 let text_layout_details = &self.text_layout_details(cx);
6371 self.change_selections(Some(autoscroll), cx, |s| {
6372 let line_mode = s.line_mode;
6373 s.move_with(|map, selection| {
6374 if !selection.is_empty() && !line_mode {
6375 selection.goal = SelectionGoal::None;
6376 }
6377 let (cursor, goal) = movement::down_by_rows(
6378 map,
6379 selection.end,
6380 row_count,
6381 selection.goal,
6382 false,
6383 &text_layout_details,
6384 );
6385 selection.collapse_to(cursor, goal);
6386 });
6387 });
6388 }
6389
6390 pub fn select_down(&mut self, _: &SelectDown, cx: &mut ViewContext<Self>) {
6391 let text_layout_details = &self.text_layout_details(cx);
6392 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6393 s.move_heads_with(|map, head, goal| {
6394 movement::down(map, head, goal, false, &text_layout_details)
6395 })
6396 });
6397 }
6398
6399 pub fn context_menu_first(&mut self, _: &ContextMenuFirst, cx: &mut ViewContext<Self>) {
6400 if let Some(context_menu) = self.context_menu.write().as_mut() {
6401 context_menu.select_first(self.project.as_ref(), cx);
6402 }
6403 }
6404
6405 pub fn context_menu_prev(&mut self, _: &ContextMenuPrev, cx: &mut ViewContext<Self>) {
6406 if let Some(context_menu) = self.context_menu.write().as_mut() {
6407 context_menu.select_prev(self.project.as_ref(), cx);
6408 }
6409 }
6410
6411 pub fn context_menu_next(&mut self, _: &ContextMenuNext, cx: &mut ViewContext<Self>) {
6412 if let Some(context_menu) = self.context_menu.write().as_mut() {
6413 context_menu.select_next(self.project.as_ref(), cx);
6414 }
6415 }
6416
6417 pub fn context_menu_last(&mut self, _: &ContextMenuLast, cx: &mut ViewContext<Self>) {
6418 if let Some(context_menu) = self.context_menu.write().as_mut() {
6419 context_menu.select_last(self.project.as_ref(), cx);
6420 }
6421 }
6422
6423 pub fn move_to_previous_word_start(
6424 &mut self,
6425 _: &MoveToPreviousWordStart,
6426 cx: &mut ViewContext<Self>,
6427 ) {
6428 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6429 s.move_cursors_with(|map, head, _| {
6430 (
6431 movement::previous_word_start(map, head),
6432 SelectionGoal::None,
6433 )
6434 });
6435 })
6436 }
6437
6438 pub fn move_to_previous_subword_start(
6439 &mut self,
6440 _: &MoveToPreviousSubwordStart,
6441 cx: &mut ViewContext<Self>,
6442 ) {
6443 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6444 s.move_cursors_with(|map, head, _| {
6445 (
6446 movement::previous_subword_start(map, head),
6447 SelectionGoal::None,
6448 )
6449 });
6450 })
6451 }
6452
6453 pub fn select_to_previous_word_start(
6454 &mut self,
6455 _: &SelectToPreviousWordStart,
6456 cx: &mut ViewContext<Self>,
6457 ) {
6458 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6459 s.move_heads_with(|map, head, _| {
6460 (
6461 movement::previous_word_start(map, head),
6462 SelectionGoal::None,
6463 )
6464 });
6465 })
6466 }
6467
6468 pub fn select_to_previous_subword_start(
6469 &mut self,
6470 _: &SelectToPreviousSubwordStart,
6471 cx: &mut ViewContext<Self>,
6472 ) {
6473 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6474 s.move_heads_with(|map, head, _| {
6475 (
6476 movement::previous_subword_start(map, head),
6477 SelectionGoal::None,
6478 )
6479 });
6480 })
6481 }
6482
6483 pub fn delete_to_previous_word_start(
6484 &mut self,
6485 _: &DeleteToPreviousWordStart,
6486 cx: &mut ViewContext<Self>,
6487 ) {
6488 self.transact(cx, |this, cx| {
6489 this.select_autoclose_pair(cx);
6490 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6491 let line_mode = s.line_mode;
6492 s.move_with(|map, selection| {
6493 if selection.is_empty() && !line_mode {
6494 let cursor = movement::previous_word_start(map, selection.head());
6495 selection.set_head(cursor, SelectionGoal::None);
6496 }
6497 });
6498 });
6499 this.insert("", cx);
6500 });
6501 }
6502
6503 pub fn delete_to_previous_subword_start(
6504 &mut self,
6505 _: &DeleteToPreviousSubwordStart,
6506 cx: &mut ViewContext<Self>,
6507 ) {
6508 self.transact(cx, |this, cx| {
6509 this.select_autoclose_pair(cx);
6510 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6511 let line_mode = s.line_mode;
6512 s.move_with(|map, selection| {
6513 if selection.is_empty() && !line_mode {
6514 let cursor = movement::previous_subword_start(map, selection.head());
6515 selection.set_head(cursor, SelectionGoal::None);
6516 }
6517 });
6518 });
6519 this.insert("", cx);
6520 });
6521 }
6522
6523 pub fn move_to_next_word_end(&mut self, _: &MoveToNextWordEnd, cx: &mut ViewContext<Self>) {
6524 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6525 s.move_cursors_with(|map, head, _| {
6526 (movement::next_word_end(map, head), SelectionGoal::None)
6527 });
6528 })
6529 }
6530
6531 pub fn move_to_next_subword_end(
6532 &mut self,
6533 _: &MoveToNextSubwordEnd,
6534 cx: &mut ViewContext<Self>,
6535 ) {
6536 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6537 s.move_cursors_with(|map, head, _| {
6538 (movement::next_subword_end(map, head), SelectionGoal::None)
6539 });
6540 })
6541 }
6542
6543 pub fn select_to_next_word_end(&mut self, _: &SelectToNextWordEnd, cx: &mut ViewContext<Self>) {
6544 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6545 s.move_heads_with(|map, head, _| {
6546 (movement::next_word_end(map, head), SelectionGoal::None)
6547 });
6548 })
6549 }
6550
6551 pub fn select_to_next_subword_end(
6552 &mut self,
6553 _: &SelectToNextSubwordEnd,
6554 cx: &mut ViewContext<Self>,
6555 ) {
6556 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6557 s.move_heads_with(|map, head, _| {
6558 (movement::next_subword_end(map, head), SelectionGoal::None)
6559 });
6560 })
6561 }
6562
6563 pub fn delete_to_next_word_end(&mut self, _: &DeleteToNextWordEnd, cx: &mut ViewContext<Self>) {
6564 self.transact(cx, |this, cx| {
6565 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6566 let line_mode = s.line_mode;
6567 s.move_with(|map, selection| {
6568 if selection.is_empty() && !line_mode {
6569 let cursor = movement::next_word_end(map, selection.head());
6570 selection.set_head(cursor, SelectionGoal::None);
6571 }
6572 });
6573 });
6574 this.insert("", cx);
6575 });
6576 }
6577
6578 pub fn delete_to_next_subword_end(
6579 &mut self,
6580 _: &DeleteToNextSubwordEnd,
6581 cx: &mut ViewContext<Self>,
6582 ) {
6583 self.transact(cx, |this, cx| {
6584 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6585 s.move_with(|map, selection| {
6586 if selection.is_empty() {
6587 let cursor = movement::next_subword_end(map, selection.head());
6588 selection.set_head(cursor, SelectionGoal::None);
6589 }
6590 });
6591 });
6592 this.insert("", cx);
6593 });
6594 }
6595
6596 pub fn move_to_beginning_of_line(
6597 &mut self,
6598 action: &MoveToBeginningOfLine,
6599 cx: &mut ViewContext<Self>,
6600 ) {
6601 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6602 s.move_cursors_with(|map, head, _| {
6603 (
6604 movement::indented_line_beginning(map, head, action.stop_at_soft_wraps),
6605 SelectionGoal::None,
6606 )
6607 });
6608 })
6609 }
6610
6611 pub fn select_to_beginning_of_line(
6612 &mut self,
6613 action: &SelectToBeginningOfLine,
6614 cx: &mut ViewContext<Self>,
6615 ) {
6616 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6617 s.move_heads_with(|map, head, _| {
6618 (
6619 movement::indented_line_beginning(map, head, action.stop_at_soft_wraps),
6620 SelectionGoal::None,
6621 )
6622 });
6623 });
6624 }
6625
6626 pub fn delete_to_beginning_of_line(
6627 &mut self,
6628 _: &DeleteToBeginningOfLine,
6629 cx: &mut ViewContext<Self>,
6630 ) {
6631 self.transact(cx, |this, cx| {
6632 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6633 s.move_with(|_, selection| {
6634 selection.reversed = true;
6635 });
6636 });
6637
6638 this.select_to_beginning_of_line(
6639 &SelectToBeginningOfLine {
6640 stop_at_soft_wraps: false,
6641 },
6642 cx,
6643 );
6644 this.backspace(&Backspace, cx);
6645 });
6646 }
6647
6648 pub fn move_to_end_of_line(&mut self, action: &MoveToEndOfLine, cx: &mut ViewContext<Self>) {
6649 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6650 s.move_cursors_with(|map, head, _| {
6651 (
6652 movement::line_end(map, head, action.stop_at_soft_wraps),
6653 SelectionGoal::None,
6654 )
6655 });
6656 })
6657 }
6658
6659 pub fn select_to_end_of_line(
6660 &mut self,
6661 action: &SelectToEndOfLine,
6662 cx: &mut ViewContext<Self>,
6663 ) {
6664 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6665 s.move_heads_with(|map, head, _| {
6666 (
6667 movement::line_end(map, head, action.stop_at_soft_wraps),
6668 SelectionGoal::None,
6669 )
6670 });
6671 })
6672 }
6673
6674 pub fn delete_to_end_of_line(&mut self, _: &DeleteToEndOfLine, cx: &mut ViewContext<Self>) {
6675 self.transact(cx, |this, cx| {
6676 this.select_to_end_of_line(
6677 &SelectToEndOfLine {
6678 stop_at_soft_wraps: false,
6679 },
6680 cx,
6681 );
6682 this.delete(&Delete, cx);
6683 });
6684 }
6685
6686 pub fn cut_to_end_of_line(&mut self, _: &CutToEndOfLine, cx: &mut ViewContext<Self>) {
6687 self.transact(cx, |this, cx| {
6688 this.select_to_end_of_line(
6689 &SelectToEndOfLine {
6690 stop_at_soft_wraps: false,
6691 },
6692 cx,
6693 );
6694 this.cut(&Cut, cx);
6695 });
6696 }
6697
6698 pub fn move_to_start_of_paragraph(
6699 &mut self,
6700 _: &MoveToStartOfParagraph,
6701 cx: &mut ViewContext<Self>,
6702 ) {
6703 if matches!(self.mode, EditorMode::SingleLine) {
6704 cx.propagate();
6705 return;
6706 }
6707
6708 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6709 s.move_with(|map, selection| {
6710 selection.collapse_to(
6711 movement::start_of_paragraph(map, selection.head(), 1),
6712 SelectionGoal::None,
6713 )
6714 });
6715 })
6716 }
6717
6718 pub fn move_to_end_of_paragraph(
6719 &mut self,
6720 _: &MoveToEndOfParagraph,
6721 cx: &mut ViewContext<Self>,
6722 ) {
6723 if matches!(self.mode, EditorMode::SingleLine) {
6724 cx.propagate();
6725 return;
6726 }
6727
6728 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6729 s.move_with(|map, selection| {
6730 selection.collapse_to(
6731 movement::end_of_paragraph(map, selection.head(), 1),
6732 SelectionGoal::None,
6733 )
6734 });
6735 })
6736 }
6737
6738 pub fn select_to_start_of_paragraph(
6739 &mut self,
6740 _: &SelectToStartOfParagraph,
6741 cx: &mut ViewContext<Self>,
6742 ) {
6743 if matches!(self.mode, EditorMode::SingleLine) {
6744 cx.propagate();
6745 return;
6746 }
6747
6748 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6749 s.move_heads_with(|map, head, _| {
6750 (
6751 movement::start_of_paragraph(map, head, 1),
6752 SelectionGoal::None,
6753 )
6754 });
6755 })
6756 }
6757
6758 pub fn select_to_end_of_paragraph(
6759 &mut self,
6760 _: &SelectToEndOfParagraph,
6761 cx: &mut ViewContext<Self>,
6762 ) {
6763 if matches!(self.mode, EditorMode::SingleLine) {
6764 cx.propagate();
6765 return;
6766 }
6767
6768 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6769 s.move_heads_with(|map, head, _| {
6770 (
6771 movement::end_of_paragraph(map, head, 1),
6772 SelectionGoal::None,
6773 )
6774 });
6775 })
6776 }
6777
6778 pub fn move_to_beginning(&mut self, _: &MoveToBeginning, cx: &mut ViewContext<Self>) {
6779 if matches!(self.mode, EditorMode::SingleLine) {
6780 cx.propagate();
6781 return;
6782 }
6783
6784 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6785 s.select_ranges(vec![0..0]);
6786 });
6787 }
6788
6789 pub fn select_to_beginning(&mut self, _: &SelectToBeginning, cx: &mut ViewContext<Self>) {
6790 let mut selection = self.selections.last::<Point>(cx);
6791 selection.set_head(Point::zero(), SelectionGoal::None);
6792
6793 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6794 s.select(vec![selection]);
6795 });
6796 }
6797
6798 pub fn move_to_end(&mut self, _: &MoveToEnd, cx: &mut ViewContext<Self>) {
6799 if matches!(self.mode, EditorMode::SingleLine) {
6800 cx.propagate();
6801 return;
6802 }
6803
6804 let cursor = self.buffer.read(cx).read(cx).len();
6805 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6806 s.select_ranges(vec![cursor..cursor])
6807 });
6808 }
6809
6810 pub fn set_nav_history(&mut self, nav_history: Option<ItemNavHistory>) {
6811 self.nav_history = nav_history;
6812 }
6813
6814 pub fn nav_history(&self) -> Option<&ItemNavHistory> {
6815 self.nav_history.as_ref()
6816 }
6817
6818 fn push_to_nav_history(
6819 &mut self,
6820 cursor_anchor: Anchor,
6821 new_position: Option<Point>,
6822 cx: &mut ViewContext<Self>,
6823 ) {
6824 if let Some(nav_history) = self.nav_history.as_mut() {
6825 let buffer = self.buffer.read(cx).read(cx);
6826 let cursor_position = cursor_anchor.to_point(&buffer);
6827 let scroll_state = self.scroll_manager.anchor();
6828 let scroll_top_row = scroll_state.top_row(&buffer);
6829 drop(buffer);
6830
6831 if let Some(new_position) = new_position {
6832 let row_delta = (new_position.row as i64 - cursor_position.row as i64).abs();
6833 if row_delta < MIN_NAVIGATION_HISTORY_ROW_DELTA {
6834 return;
6835 }
6836 }
6837
6838 nav_history.push(
6839 Some(NavigationData {
6840 cursor_anchor,
6841 cursor_position,
6842 scroll_anchor: scroll_state,
6843 scroll_top_row,
6844 }),
6845 cx,
6846 );
6847 }
6848 }
6849
6850 pub fn select_to_end(&mut self, _: &SelectToEnd, cx: &mut ViewContext<Self>) {
6851 let buffer = self.buffer.read(cx).snapshot(cx);
6852 let mut selection = self.selections.first::<usize>(cx);
6853 selection.set_head(buffer.len(), SelectionGoal::None);
6854 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6855 s.select(vec![selection]);
6856 });
6857 }
6858
6859 pub fn select_all(&mut self, _: &SelectAll, cx: &mut ViewContext<Self>) {
6860 let end = self.buffer.read(cx).read(cx).len();
6861 self.change_selections(None, cx, |s| {
6862 s.select_ranges(vec![0..end]);
6863 });
6864 }
6865
6866 pub fn select_line(&mut self, _: &SelectLine, cx: &mut ViewContext<Self>) {
6867 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
6868 let mut selections = self.selections.all::<Point>(cx);
6869 let max_point = display_map.buffer_snapshot.max_point();
6870 for selection in &mut selections {
6871 let rows = selection.spanned_rows(true, &display_map);
6872 selection.start = Point::new(rows.start.0, 0);
6873 selection.end = cmp::min(max_point, Point::new(rows.end.0, 0));
6874 selection.reversed = false;
6875 }
6876 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6877 s.select(selections);
6878 });
6879 }
6880
6881 pub fn split_selection_into_lines(
6882 &mut self,
6883 _: &SplitSelectionIntoLines,
6884 cx: &mut ViewContext<Self>,
6885 ) {
6886 let mut to_unfold = Vec::new();
6887 let mut new_selection_ranges = Vec::new();
6888 {
6889 let selections = self.selections.all::<Point>(cx);
6890 let buffer = self.buffer.read(cx).read(cx);
6891 for selection in selections {
6892 for row in selection.start.row..selection.end.row {
6893 let cursor = Point::new(row, buffer.line_len(MultiBufferRow(row)));
6894 new_selection_ranges.push(cursor..cursor);
6895 }
6896 new_selection_ranges.push(selection.end..selection.end);
6897 to_unfold.push(selection.start..selection.end);
6898 }
6899 }
6900 self.unfold_ranges(to_unfold, true, true, cx);
6901 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6902 s.select_ranges(new_selection_ranges);
6903 });
6904 }
6905
6906 pub fn add_selection_above(&mut self, _: &AddSelectionAbove, cx: &mut ViewContext<Self>) {
6907 self.add_selection(true, cx);
6908 }
6909
6910 pub fn add_selection_below(&mut self, _: &AddSelectionBelow, cx: &mut ViewContext<Self>) {
6911 self.add_selection(false, cx);
6912 }
6913
6914 fn add_selection(&mut self, above: bool, cx: &mut ViewContext<Self>) {
6915 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
6916 let mut selections = self.selections.all::<Point>(cx);
6917 let text_layout_details = self.text_layout_details(cx);
6918 let mut state = self.add_selections_state.take().unwrap_or_else(|| {
6919 let oldest_selection = selections.iter().min_by_key(|s| s.id).unwrap().clone();
6920 let range = oldest_selection.display_range(&display_map).sorted();
6921
6922 let start_x = display_map.x_for_display_point(range.start, &text_layout_details);
6923 let end_x = display_map.x_for_display_point(range.end, &text_layout_details);
6924 let positions = start_x.min(end_x)..start_x.max(end_x);
6925
6926 selections.clear();
6927 let mut stack = Vec::new();
6928 for row in range.start.row().0..=range.end.row().0 {
6929 if let Some(selection) = self.selections.build_columnar_selection(
6930 &display_map,
6931 DisplayRow(row),
6932 &positions,
6933 oldest_selection.reversed,
6934 &text_layout_details,
6935 ) {
6936 stack.push(selection.id);
6937 selections.push(selection);
6938 }
6939 }
6940
6941 if above {
6942 stack.reverse();
6943 }
6944
6945 AddSelectionsState { above, stack }
6946 });
6947
6948 let last_added_selection = *state.stack.last().unwrap();
6949 let mut new_selections = Vec::new();
6950 if above == state.above {
6951 let end_row = if above {
6952 DisplayRow(0)
6953 } else {
6954 display_map.max_point().row()
6955 };
6956
6957 'outer: for selection in selections {
6958 if selection.id == last_added_selection {
6959 let range = selection.display_range(&display_map).sorted();
6960 debug_assert_eq!(range.start.row(), range.end.row());
6961 let mut row = range.start.row();
6962 let positions =
6963 if let SelectionGoal::HorizontalRange { start, end } = selection.goal {
6964 px(start)..px(end)
6965 } else {
6966 let start_x =
6967 display_map.x_for_display_point(range.start, &text_layout_details);
6968 let end_x =
6969 display_map.x_for_display_point(range.end, &text_layout_details);
6970 start_x.min(end_x)..start_x.max(end_x)
6971 };
6972
6973 while row != end_row {
6974 if above {
6975 row.0 -= 1;
6976 } else {
6977 row.0 += 1;
6978 }
6979
6980 if let Some(new_selection) = self.selections.build_columnar_selection(
6981 &display_map,
6982 row,
6983 &positions,
6984 selection.reversed,
6985 &text_layout_details,
6986 ) {
6987 state.stack.push(new_selection.id);
6988 if above {
6989 new_selections.push(new_selection);
6990 new_selections.push(selection);
6991 } else {
6992 new_selections.push(selection);
6993 new_selections.push(new_selection);
6994 }
6995
6996 continue 'outer;
6997 }
6998 }
6999 }
7000
7001 new_selections.push(selection);
7002 }
7003 } else {
7004 new_selections = selections;
7005 new_selections.retain(|s| s.id != last_added_selection);
7006 state.stack.pop();
7007 }
7008
7009 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7010 s.select(new_selections);
7011 });
7012 if state.stack.len() > 1 {
7013 self.add_selections_state = Some(state);
7014 }
7015 }
7016
7017 pub fn select_next_match_internal(
7018 &mut self,
7019 display_map: &DisplaySnapshot,
7020 replace_newest: bool,
7021 autoscroll: Option<Autoscroll>,
7022 cx: &mut ViewContext<Self>,
7023 ) -> Result<()> {
7024 fn select_next_match_ranges(
7025 this: &mut Editor,
7026 range: Range<usize>,
7027 replace_newest: bool,
7028 auto_scroll: Option<Autoscroll>,
7029 cx: &mut ViewContext<Editor>,
7030 ) {
7031 this.unfold_ranges([range.clone()], false, true, cx);
7032 this.change_selections(auto_scroll, cx, |s| {
7033 if replace_newest {
7034 s.delete(s.newest_anchor().id);
7035 }
7036 s.insert_range(range.clone());
7037 });
7038 }
7039
7040 let buffer = &display_map.buffer_snapshot;
7041 let mut selections = self.selections.all::<usize>(cx);
7042 if let Some(mut select_next_state) = self.select_next_state.take() {
7043 let query = &select_next_state.query;
7044 if !select_next_state.done {
7045 let first_selection = selections.iter().min_by_key(|s| s.id).unwrap();
7046 let last_selection = selections.iter().max_by_key(|s| s.id).unwrap();
7047 let mut next_selected_range = None;
7048
7049 let bytes_after_last_selection =
7050 buffer.bytes_in_range(last_selection.end..buffer.len());
7051 let bytes_before_first_selection = buffer.bytes_in_range(0..first_selection.start);
7052 let query_matches = query
7053 .stream_find_iter(bytes_after_last_selection)
7054 .map(|result| (last_selection.end, result))
7055 .chain(
7056 query
7057 .stream_find_iter(bytes_before_first_selection)
7058 .map(|result| (0, result)),
7059 );
7060
7061 for (start_offset, query_match) in query_matches {
7062 let query_match = query_match.unwrap(); // can only fail due to I/O
7063 let offset_range =
7064 start_offset + query_match.start()..start_offset + query_match.end();
7065 let display_range = offset_range.start.to_display_point(&display_map)
7066 ..offset_range.end.to_display_point(&display_map);
7067
7068 if !select_next_state.wordwise
7069 || (!movement::is_inside_word(&display_map, display_range.start)
7070 && !movement::is_inside_word(&display_map, display_range.end))
7071 {
7072 // TODO: This is n^2, because we might check all the selections
7073 if !selections
7074 .iter()
7075 .any(|selection| selection.range().overlaps(&offset_range))
7076 {
7077 next_selected_range = Some(offset_range);
7078 break;
7079 }
7080 }
7081 }
7082
7083 if let Some(next_selected_range) = next_selected_range {
7084 select_next_match_ranges(
7085 self,
7086 next_selected_range,
7087 replace_newest,
7088 autoscroll,
7089 cx,
7090 );
7091 } else {
7092 select_next_state.done = true;
7093 }
7094 }
7095
7096 self.select_next_state = Some(select_next_state);
7097 } else {
7098 let mut only_carets = true;
7099 let mut same_text_selected = true;
7100 let mut selected_text = None;
7101
7102 let mut selections_iter = selections.iter().peekable();
7103 while let Some(selection) = selections_iter.next() {
7104 if selection.start != selection.end {
7105 only_carets = false;
7106 }
7107
7108 if same_text_selected {
7109 if selected_text.is_none() {
7110 selected_text =
7111 Some(buffer.text_for_range(selection.range()).collect::<String>());
7112 }
7113
7114 if let Some(next_selection) = selections_iter.peek() {
7115 if next_selection.range().len() == selection.range().len() {
7116 let next_selected_text = buffer
7117 .text_for_range(next_selection.range())
7118 .collect::<String>();
7119 if Some(next_selected_text) != selected_text {
7120 same_text_selected = false;
7121 selected_text = None;
7122 }
7123 } else {
7124 same_text_selected = false;
7125 selected_text = None;
7126 }
7127 }
7128 }
7129 }
7130
7131 if only_carets {
7132 for selection in &mut selections {
7133 let word_range = movement::surrounding_word(
7134 &display_map,
7135 selection.start.to_display_point(&display_map),
7136 );
7137 selection.start = word_range.start.to_offset(&display_map, Bias::Left);
7138 selection.end = word_range.end.to_offset(&display_map, Bias::Left);
7139 selection.goal = SelectionGoal::None;
7140 selection.reversed = false;
7141 select_next_match_ranges(
7142 self,
7143 selection.start..selection.end,
7144 replace_newest,
7145 autoscroll,
7146 cx,
7147 );
7148 }
7149
7150 if selections.len() == 1 {
7151 let selection = selections
7152 .last()
7153 .expect("ensured that there's only one selection");
7154 let query = buffer
7155 .text_for_range(selection.start..selection.end)
7156 .collect::<String>();
7157 let is_empty = query.is_empty();
7158 let select_state = SelectNextState {
7159 query: AhoCorasick::new(&[query])?,
7160 wordwise: true,
7161 done: is_empty,
7162 };
7163 self.select_next_state = Some(select_state);
7164 } else {
7165 self.select_next_state = None;
7166 }
7167 } else if let Some(selected_text) = selected_text {
7168 self.select_next_state = Some(SelectNextState {
7169 query: AhoCorasick::new(&[selected_text])?,
7170 wordwise: false,
7171 done: false,
7172 });
7173 self.select_next_match_internal(display_map, replace_newest, autoscroll, cx)?;
7174 }
7175 }
7176 Ok(())
7177 }
7178
7179 pub fn select_all_matches(
7180 &mut self,
7181 _action: &SelectAllMatches,
7182 cx: &mut ViewContext<Self>,
7183 ) -> Result<()> {
7184 self.push_to_selection_history();
7185 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
7186
7187 self.select_next_match_internal(&display_map, false, None, cx)?;
7188 let Some(select_next_state) = self.select_next_state.as_mut() else {
7189 return Ok(());
7190 };
7191 if select_next_state.done {
7192 return Ok(());
7193 }
7194
7195 let mut new_selections = self.selections.all::<usize>(cx);
7196
7197 let buffer = &display_map.buffer_snapshot;
7198 let query_matches = select_next_state
7199 .query
7200 .stream_find_iter(buffer.bytes_in_range(0..buffer.len()));
7201
7202 for query_match in query_matches {
7203 let query_match = query_match.unwrap(); // can only fail due to I/O
7204 let offset_range = query_match.start()..query_match.end();
7205 let display_range = offset_range.start.to_display_point(&display_map)
7206 ..offset_range.end.to_display_point(&display_map);
7207
7208 if !select_next_state.wordwise
7209 || (!movement::is_inside_word(&display_map, display_range.start)
7210 && !movement::is_inside_word(&display_map, display_range.end))
7211 {
7212 self.selections.change_with(cx, |selections| {
7213 new_selections.push(Selection {
7214 id: selections.new_selection_id(),
7215 start: offset_range.start,
7216 end: offset_range.end,
7217 reversed: false,
7218 goal: SelectionGoal::None,
7219 });
7220 });
7221 }
7222 }
7223
7224 new_selections.sort_by_key(|selection| selection.start);
7225 let mut ix = 0;
7226 while ix + 1 < new_selections.len() {
7227 let current_selection = &new_selections[ix];
7228 let next_selection = &new_selections[ix + 1];
7229 if current_selection.range().overlaps(&next_selection.range()) {
7230 if current_selection.id < next_selection.id {
7231 new_selections.remove(ix + 1);
7232 } else {
7233 new_selections.remove(ix);
7234 }
7235 } else {
7236 ix += 1;
7237 }
7238 }
7239
7240 select_next_state.done = true;
7241 self.unfold_ranges(
7242 new_selections.iter().map(|selection| selection.range()),
7243 false,
7244 false,
7245 cx,
7246 );
7247 self.change_selections(Some(Autoscroll::fit()), cx, |selections| {
7248 selections.select(new_selections)
7249 });
7250
7251 Ok(())
7252 }
7253
7254 pub fn select_next(&mut self, action: &SelectNext, cx: &mut ViewContext<Self>) -> Result<()> {
7255 self.push_to_selection_history();
7256 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
7257 self.select_next_match_internal(
7258 &display_map,
7259 action.replace_newest,
7260 Some(Autoscroll::newest()),
7261 cx,
7262 )?;
7263 Ok(())
7264 }
7265
7266 pub fn select_previous(
7267 &mut self,
7268 action: &SelectPrevious,
7269 cx: &mut ViewContext<Self>,
7270 ) -> Result<()> {
7271 self.push_to_selection_history();
7272 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
7273 let buffer = &display_map.buffer_snapshot;
7274 let mut selections = self.selections.all::<usize>(cx);
7275 if let Some(mut select_prev_state) = self.select_prev_state.take() {
7276 let query = &select_prev_state.query;
7277 if !select_prev_state.done {
7278 let first_selection = selections.iter().min_by_key(|s| s.id).unwrap();
7279 let last_selection = selections.iter().max_by_key(|s| s.id).unwrap();
7280 let mut next_selected_range = None;
7281 // When we're iterating matches backwards, the oldest match will actually be the furthest one in the buffer.
7282 let bytes_before_last_selection =
7283 buffer.reversed_bytes_in_range(0..last_selection.start);
7284 let bytes_after_first_selection =
7285 buffer.reversed_bytes_in_range(first_selection.end..buffer.len());
7286 let query_matches = query
7287 .stream_find_iter(bytes_before_last_selection)
7288 .map(|result| (last_selection.start, result))
7289 .chain(
7290 query
7291 .stream_find_iter(bytes_after_first_selection)
7292 .map(|result| (buffer.len(), result)),
7293 );
7294 for (end_offset, query_match) in query_matches {
7295 let query_match = query_match.unwrap(); // can only fail due to I/O
7296 let offset_range =
7297 end_offset - query_match.end()..end_offset - query_match.start();
7298 let display_range = offset_range.start.to_display_point(&display_map)
7299 ..offset_range.end.to_display_point(&display_map);
7300
7301 if !select_prev_state.wordwise
7302 || (!movement::is_inside_word(&display_map, display_range.start)
7303 && !movement::is_inside_word(&display_map, display_range.end))
7304 {
7305 next_selected_range = Some(offset_range);
7306 break;
7307 }
7308 }
7309
7310 if let Some(next_selected_range) = next_selected_range {
7311 self.unfold_ranges([next_selected_range.clone()], false, true, cx);
7312 self.change_selections(Some(Autoscroll::newest()), cx, |s| {
7313 if action.replace_newest {
7314 s.delete(s.newest_anchor().id);
7315 }
7316 s.insert_range(next_selected_range);
7317 });
7318 } else {
7319 select_prev_state.done = true;
7320 }
7321 }
7322
7323 self.select_prev_state = Some(select_prev_state);
7324 } else {
7325 let mut only_carets = true;
7326 let mut same_text_selected = true;
7327 let mut selected_text = None;
7328
7329 let mut selections_iter = selections.iter().peekable();
7330 while let Some(selection) = selections_iter.next() {
7331 if selection.start != selection.end {
7332 only_carets = false;
7333 }
7334
7335 if same_text_selected {
7336 if selected_text.is_none() {
7337 selected_text =
7338 Some(buffer.text_for_range(selection.range()).collect::<String>());
7339 }
7340
7341 if let Some(next_selection) = selections_iter.peek() {
7342 if next_selection.range().len() == selection.range().len() {
7343 let next_selected_text = buffer
7344 .text_for_range(next_selection.range())
7345 .collect::<String>();
7346 if Some(next_selected_text) != selected_text {
7347 same_text_selected = false;
7348 selected_text = None;
7349 }
7350 } else {
7351 same_text_selected = false;
7352 selected_text = None;
7353 }
7354 }
7355 }
7356 }
7357
7358 if only_carets {
7359 for selection in &mut selections {
7360 let word_range = movement::surrounding_word(
7361 &display_map,
7362 selection.start.to_display_point(&display_map),
7363 );
7364 selection.start = word_range.start.to_offset(&display_map, Bias::Left);
7365 selection.end = word_range.end.to_offset(&display_map, Bias::Left);
7366 selection.goal = SelectionGoal::None;
7367 selection.reversed = false;
7368 }
7369 if selections.len() == 1 {
7370 let selection = selections
7371 .last()
7372 .expect("ensured that there's only one selection");
7373 let query = buffer
7374 .text_for_range(selection.start..selection.end)
7375 .collect::<String>();
7376 let is_empty = query.is_empty();
7377 let select_state = SelectNextState {
7378 query: AhoCorasick::new(&[query.chars().rev().collect::<String>()])?,
7379 wordwise: true,
7380 done: is_empty,
7381 };
7382 self.select_prev_state = Some(select_state);
7383 } else {
7384 self.select_prev_state = None;
7385 }
7386
7387 self.unfold_ranges(
7388 selections.iter().map(|s| s.range()).collect::<Vec<_>>(),
7389 false,
7390 true,
7391 cx,
7392 );
7393 self.change_selections(Some(Autoscroll::newest()), cx, |s| {
7394 s.select(selections);
7395 });
7396 } else if let Some(selected_text) = selected_text {
7397 self.select_prev_state = Some(SelectNextState {
7398 query: AhoCorasick::new(&[selected_text.chars().rev().collect::<String>()])?,
7399 wordwise: false,
7400 done: false,
7401 });
7402 self.select_previous(action, cx)?;
7403 }
7404 }
7405 Ok(())
7406 }
7407
7408 pub fn toggle_comments(&mut self, action: &ToggleComments, cx: &mut ViewContext<Self>) {
7409 let text_layout_details = &self.text_layout_details(cx);
7410 self.transact(cx, |this, cx| {
7411 let mut selections = this.selections.all::<MultiBufferPoint>(cx);
7412 let mut edits = Vec::new();
7413 let mut selection_edit_ranges = Vec::new();
7414 let mut last_toggled_row = None;
7415 let snapshot = this.buffer.read(cx).read(cx);
7416 let empty_str: Arc<str> = "".into();
7417 let mut suffixes_inserted = Vec::new();
7418
7419 fn comment_prefix_range(
7420 snapshot: &MultiBufferSnapshot,
7421 row: MultiBufferRow,
7422 comment_prefix: &str,
7423 comment_prefix_whitespace: &str,
7424 ) -> Range<Point> {
7425 let start = Point::new(row.0, snapshot.indent_size_for_line(row).len);
7426
7427 let mut line_bytes = snapshot
7428 .bytes_in_range(start..snapshot.max_point())
7429 .flatten()
7430 .copied();
7431
7432 // If this line currently begins with the line comment prefix, then record
7433 // the range containing the prefix.
7434 if line_bytes
7435 .by_ref()
7436 .take(comment_prefix.len())
7437 .eq(comment_prefix.bytes())
7438 {
7439 // Include any whitespace that matches the comment prefix.
7440 let matching_whitespace_len = line_bytes
7441 .zip(comment_prefix_whitespace.bytes())
7442 .take_while(|(a, b)| a == b)
7443 .count() as u32;
7444 let end = Point::new(
7445 start.row,
7446 start.column + comment_prefix.len() as u32 + matching_whitespace_len,
7447 );
7448 start..end
7449 } else {
7450 start..start
7451 }
7452 }
7453
7454 fn comment_suffix_range(
7455 snapshot: &MultiBufferSnapshot,
7456 row: MultiBufferRow,
7457 comment_suffix: &str,
7458 comment_suffix_has_leading_space: bool,
7459 ) -> Range<Point> {
7460 let end = Point::new(row.0, snapshot.line_len(row));
7461 let suffix_start_column = end.column.saturating_sub(comment_suffix.len() as u32);
7462
7463 let mut line_end_bytes = snapshot
7464 .bytes_in_range(Point::new(end.row, suffix_start_column.saturating_sub(1))..end)
7465 .flatten()
7466 .copied();
7467
7468 let leading_space_len = if suffix_start_column > 0
7469 && line_end_bytes.next() == Some(b' ')
7470 && comment_suffix_has_leading_space
7471 {
7472 1
7473 } else {
7474 0
7475 };
7476
7477 // If this line currently begins with the line comment prefix, then record
7478 // the range containing the prefix.
7479 if line_end_bytes.by_ref().eq(comment_suffix.bytes()) {
7480 let start = Point::new(end.row, suffix_start_column - leading_space_len);
7481 start..end
7482 } else {
7483 end..end
7484 }
7485 }
7486
7487 // TODO: Handle selections that cross excerpts
7488 for selection in &mut selections {
7489 let start_column = snapshot
7490 .indent_size_for_line(MultiBufferRow(selection.start.row))
7491 .len;
7492 let language = if let Some(language) =
7493 snapshot.language_scope_at(Point::new(selection.start.row, start_column))
7494 {
7495 language
7496 } else {
7497 continue;
7498 };
7499
7500 selection_edit_ranges.clear();
7501
7502 // If multiple selections contain a given row, avoid processing that
7503 // row more than once.
7504 let mut start_row = MultiBufferRow(selection.start.row);
7505 if last_toggled_row == Some(start_row) {
7506 start_row = start_row.next_row();
7507 }
7508 let end_row =
7509 if selection.end.row > selection.start.row && selection.end.column == 0 {
7510 MultiBufferRow(selection.end.row - 1)
7511 } else {
7512 MultiBufferRow(selection.end.row)
7513 };
7514 last_toggled_row = Some(end_row);
7515
7516 if start_row > end_row {
7517 continue;
7518 }
7519
7520 // If the language has line comments, toggle those.
7521 let full_comment_prefixes = language.line_comment_prefixes();
7522 if !full_comment_prefixes.is_empty() {
7523 let first_prefix = full_comment_prefixes
7524 .first()
7525 .expect("prefixes is non-empty");
7526 let prefix_trimmed_lengths = full_comment_prefixes
7527 .iter()
7528 .map(|p| p.trim_end_matches(' ').len())
7529 .collect::<SmallVec<[usize; 4]>>();
7530
7531 let mut all_selection_lines_are_comments = true;
7532
7533 for row in start_row.0..=end_row.0 {
7534 let row = MultiBufferRow(row);
7535 if start_row < end_row && snapshot.is_line_blank(row) {
7536 continue;
7537 }
7538
7539 let prefix_range = full_comment_prefixes
7540 .iter()
7541 .zip(prefix_trimmed_lengths.iter().copied())
7542 .map(|(prefix, trimmed_prefix_len)| {
7543 comment_prefix_range(
7544 snapshot.deref(),
7545 row,
7546 &prefix[..trimmed_prefix_len],
7547 &prefix[trimmed_prefix_len..],
7548 )
7549 })
7550 .max_by_key(|range| range.end.column - range.start.column)
7551 .expect("prefixes is non-empty");
7552
7553 if prefix_range.is_empty() {
7554 all_selection_lines_are_comments = false;
7555 }
7556
7557 selection_edit_ranges.push(prefix_range);
7558 }
7559
7560 if all_selection_lines_are_comments {
7561 edits.extend(
7562 selection_edit_ranges
7563 .iter()
7564 .cloned()
7565 .map(|range| (range, empty_str.clone())),
7566 );
7567 } else {
7568 let min_column = selection_edit_ranges
7569 .iter()
7570 .map(|range| range.start.column)
7571 .min()
7572 .unwrap_or(0);
7573 edits.extend(selection_edit_ranges.iter().map(|range| {
7574 let position = Point::new(range.start.row, min_column);
7575 (position..position, first_prefix.clone())
7576 }));
7577 }
7578 } else if let Some((full_comment_prefix, comment_suffix)) =
7579 language.block_comment_delimiters()
7580 {
7581 let comment_prefix = full_comment_prefix.trim_end_matches(' ');
7582 let comment_prefix_whitespace = &full_comment_prefix[comment_prefix.len()..];
7583 let prefix_range = comment_prefix_range(
7584 snapshot.deref(),
7585 start_row,
7586 comment_prefix,
7587 comment_prefix_whitespace,
7588 );
7589 let suffix_range = comment_suffix_range(
7590 snapshot.deref(),
7591 end_row,
7592 comment_suffix.trim_start_matches(' '),
7593 comment_suffix.starts_with(' '),
7594 );
7595
7596 if prefix_range.is_empty() || suffix_range.is_empty() {
7597 edits.push((
7598 prefix_range.start..prefix_range.start,
7599 full_comment_prefix.clone(),
7600 ));
7601 edits.push((suffix_range.end..suffix_range.end, comment_suffix.clone()));
7602 suffixes_inserted.push((end_row, comment_suffix.len()));
7603 } else {
7604 edits.push((prefix_range, empty_str.clone()));
7605 edits.push((suffix_range, empty_str.clone()));
7606 }
7607 } else {
7608 continue;
7609 }
7610 }
7611
7612 drop(snapshot);
7613 this.buffer.update(cx, |buffer, cx| {
7614 buffer.edit(edits, None, cx);
7615 });
7616
7617 // Adjust selections so that they end before any comment suffixes that
7618 // were inserted.
7619 let mut suffixes_inserted = suffixes_inserted.into_iter().peekable();
7620 let mut selections = this.selections.all::<Point>(cx);
7621 let snapshot = this.buffer.read(cx).read(cx);
7622 for selection in &mut selections {
7623 while let Some((row, suffix_len)) = suffixes_inserted.peek().copied() {
7624 match row.cmp(&MultiBufferRow(selection.end.row)) {
7625 Ordering::Less => {
7626 suffixes_inserted.next();
7627 continue;
7628 }
7629 Ordering::Greater => break,
7630 Ordering::Equal => {
7631 if selection.end.column == snapshot.line_len(row) {
7632 if selection.is_empty() {
7633 selection.start.column -= suffix_len as u32;
7634 }
7635 selection.end.column -= suffix_len as u32;
7636 }
7637 break;
7638 }
7639 }
7640 }
7641 }
7642
7643 drop(snapshot);
7644 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
7645
7646 let selections = this.selections.all::<Point>(cx);
7647 let selections_on_single_row = selections.windows(2).all(|selections| {
7648 selections[0].start.row == selections[1].start.row
7649 && selections[0].end.row == selections[1].end.row
7650 && selections[0].start.row == selections[0].end.row
7651 });
7652 let selections_selecting = selections
7653 .iter()
7654 .any(|selection| selection.start != selection.end);
7655 let advance_downwards = action.advance_downwards
7656 && selections_on_single_row
7657 && !selections_selecting
7658 && this.mode != EditorMode::SingleLine;
7659
7660 if advance_downwards {
7661 let snapshot = this.buffer.read(cx).snapshot(cx);
7662
7663 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
7664 s.move_cursors_with(|display_snapshot, display_point, _| {
7665 let mut point = display_point.to_point(display_snapshot);
7666 point.row += 1;
7667 point = snapshot.clip_point(point, Bias::Left);
7668 let display_point = point.to_display_point(display_snapshot);
7669 let goal = SelectionGoal::HorizontalPosition(
7670 display_snapshot
7671 .x_for_display_point(display_point, &text_layout_details)
7672 .into(),
7673 );
7674 (display_point, goal)
7675 })
7676 });
7677 }
7678 });
7679 }
7680
7681 pub fn select_larger_syntax_node(
7682 &mut self,
7683 _: &SelectLargerSyntaxNode,
7684 cx: &mut ViewContext<Self>,
7685 ) {
7686 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
7687 let buffer = self.buffer.read(cx).snapshot(cx);
7688 let old_selections = self.selections.all::<usize>(cx).into_boxed_slice();
7689
7690 let mut stack = mem::take(&mut self.select_larger_syntax_node_stack);
7691 let mut selected_larger_node = false;
7692 let new_selections = old_selections
7693 .iter()
7694 .map(|selection| {
7695 let old_range = selection.start..selection.end;
7696 let mut new_range = old_range.clone();
7697 while let Some(containing_range) =
7698 buffer.range_for_syntax_ancestor(new_range.clone())
7699 {
7700 new_range = containing_range;
7701 if !display_map.intersects_fold(new_range.start)
7702 && !display_map.intersects_fold(new_range.end)
7703 {
7704 break;
7705 }
7706 }
7707
7708 selected_larger_node |= new_range != old_range;
7709 Selection {
7710 id: selection.id,
7711 start: new_range.start,
7712 end: new_range.end,
7713 goal: SelectionGoal::None,
7714 reversed: selection.reversed,
7715 }
7716 })
7717 .collect::<Vec<_>>();
7718
7719 if selected_larger_node {
7720 stack.push(old_selections);
7721 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7722 s.select(new_selections);
7723 });
7724 }
7725 self.select_larger_syntax_node_stack = stack;
7726 }
7727
7728 pub fn select_smaller_syntax_node(
7729 &mut self,
7730 _: &SelectSmallerSyntaxNode,
7731 cx: &mut ViewContext<Self>,
7732 ) {
7733 let mut stack = mem::take(&mut self.select_larger_syntax_node_stack);
7734 if let Some(selections) = stack.pop() {
7735 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7736 s.select(selections.to_vec());
7737 });
7738 }
7739 self.select_larger_syntax_node_stack = stack;
7740 }
7741
7742 fn refresh_runnables(&mut self, cx: &mut ViewContext<Self>) -> Task<()> {
7743 let project = self.project.clone();
7744 cx.spawn(|this, mut cx| async move {
7745 let Ok(display_snapshot) = this.update(&mut cx, |this, cx| {
7746 this.display_map.update(cx, |map, cx| map.snapshot(cx))
7747 }) else {
7748 return;
7749 };
7750
7751 let Some(project) = project else {
7752 return;
7753 };
7754 if project
7755 .update(&mut cx, |this, _| this.is_remote())
7756 .unwrap_or(true)
7757 {
7758 // Do not display any test indicators in remote projects.
7759 return;
7760 }
7761 let new_rows =
7762 cx.background_executor()
7763 .spawn({
7764 let snapshot = display_snapshot.clone();
7765 async move {
7766 Self::fetch_runnable_ranges(&snapshot, Anchor::min()..Anchor::max())
7767 }
7768 })
7769 .await;
7770 let rows = Self::runnable_rows(project, display_snapshot, new_rows, cx.clone());
7771
7772 this.update(&mut cx, |this, _| {
7773 this.clear_tasks();
7774 for (key, value) in rows {
7775 this.insert_tasks(key, value);
7776 }
7777 })
7778 .ok();
7779 })
7780 }
7781 fn fetch_runnable_ranges(
7782 snapshot: &DisplaySnapshot,
7783 range: Range<Anchor>,
7784 ) -> Vec<language::RunnableRange> {
7785 snapshot.buffer_snapshot.runnable_ranges(range).collect()
7786 }
7787
7788 fn runnable_rows(
7789 project: Model<Project>,
7790 snapshot: DisplaySnapshot,
7791 runnable_ranges: Vec<RunnableRange>,
7792 mut cx: AsyncWindowContext,
7793 ) -> Vec<((BufferId, u32), (usize, RunnableTasks))> {
7794 runnable_ranges
7795 .into_iter()
7796 .filter_map(|mut runnable| {
7797 let (tasks, _) = cx
7798 .update(|cx| {
7799 Self::resolve_runnable(project.clone(), &mut runnable.runnable, cx)
7800 })
7801 .ok()?;
7802 if tasks.is_empty() {
7803 return None;
7804 }
7805
7806 let point = runnable.run_range.start.to_point(&snapshot.buffer_snapshot);
7807
7808 let row = snapshot
7809 .buffer_snapshot
7810 .buffer_line_for_row(MultiBufferRow(point.row))?
7811 .1
7812 .start
7813 .row;
7814
7815 Some((
7816 (runnable.buffer_id, row),
7817 (
7818 runnable.run_range.start,
7819 RunnableTasks {
7820 templates: tasks,
7821 column: point.column,
7822 extra_variables: runnable.extra_captures,
7823 },
7824 ),
7825 ))
7826 })
7827 .collect()
7828 }
7829
7830 fn resolve_runnable(
7831 project: Model<Project>,
7832 runnable: &mut Runnable,
7833 cx: &WindowContext<'_>,
7834 ) -> (Vec<(TaskSourceKind, TaskTemplate)>, Option<WorktreeId>) {
7835 let (inventory, worktree_id) = project.read_with(cx, |project, cx| {
7836 let worktree_id = project
7837 .buffer_for_id(runnable.buffer)
7838 .and_then(|buffer| buffer.read(cx).file())
7839 .map(|file| WorktreeId::from_usize(file.worktree_id()));
7840
7841 (project.task_inventory().clone(), worktree_id)
7842 });
7843
7844 let inventory = inventory.read(cx);
7845 let tags = mem::take(&mut runnable.tags);
7846 let mut tags: Vec<_> = tags
7847 .into_iter()
7848 .flat_map(|tag| {
7849 let tag = tag.0.clone();
7850 inventory
7851 .list_tasks(Some(runnable.language.clone()), worktree_id)
7852 .into_iter()
7853 .filter(move |(_, template)| {
7854 template.tags.iter().any(|source_tag| source_tag == &tag)
7855 })
7856 })
7857 .sorted_by_key(|(kind, _)| kind.to_owned())
7858 .collect();
7859 if let Some((leading_tag_source, _)) = tags.first() {
7860 // Strongest source wins; if we have worktree tag binding, prefer that to
7861 // global and language bindings;
7862 // if we have a global binding, prefer that to language binding.
7863 let first_mismatch = tags
7864 .iter()
7865 .position(|(tag_source, _)| tag_source != leading_tag_source);
7866 if let Some(index) = first_mismatch {
7867 tags.truncate(index);
7868 }
7869 }
7870
7871 (tags, worktree_id)
7872 }
7873
7874 pub fn move_to_enclosing_bracket(
7875 &mut self,
7876 _: &MoveToEnclosingBracket,
7877 cx: &mut ViewContext<Self>,
7878 ) {
7879 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7880 s.move_offsets_with(|snapshot, selection| {
7881 let Some(enclosing_bracket_ranges) =
7882 snapshot.enclosing_bracket_ranges(selection.start..selection.end)
7883 else {
7884 return;
7885 };
7886
7887 let mut best_length = usize::MAX;
7888 let mut best_inside = false;
7889 let mut best_in_bracket_range = false;
7890 let mut best_destination = None;
7891 for (open, close) in enclosing_bracket_ranges {
7892 let close = close.to_inclusive();
7893 let length = close.end() - open.start;
7894 let inside = selection.start >= open.end && selection.end <= *close.start();
7895 let in_bracket_range = open.to_inclusive().contains(&selection.head())
7896 || close.contains(&selection.head());
7897
7898 // If best is next to a bracket and current isn't, skip
7899 if !in_bracket_range && best_in_bracket_range {
7900 continue;
7901 }
7902
7903 // Prefer smaller lengths unless best is inside and current isn't
7904 if length > best_length && (best_inside || !inside) {
7905 continue;
7906 }
7907
7908 best_length = length;
7909 best_inside = inside;
7910 best_in_bracket_range = in_bracket_range;
7911 best_destination = Some(
7912 if close.contains(&selection.start) && close.contains(&selection.end) {
7913 if inside {
7914 open.end
7915 } else {
7916 open.start
7917 }
7918 } else {
7919 if inside {
7920 *close.start()
7921 } else {
7922 *close.end()
7923 }
7924 },
7925 );
7926 }
7927
7928 if let Some(destination) = best_destination {
7929 selection.collapse_to(destination, SelectionGoal::None);
7930 }
7931 })
7932 });
7933 }
7934
7935 pub fn undo_selection(&mut self, _: &UndoSelection, cx: &mut ViewContext<Self>) {
7936 self.end_selection(cx);
7937 self.selection_history.mode = SelectionHistoryMode::Undoing;
7938 if let Some(entry) = self.selection_history.undo_stack.pop_back() {
7939 self.change_selections(None, cx, |s| s.select_anchors(entry.selections.to_vec()));
7940 self.select_next_state = entry.select_next_state;
7941 self.select_prev_state = entry.select_prev_state;
7942 self.add_selections_state = entry.add_selections_state;
7943 self.request_autoscroll(Autoscroll::newest(), cx);
7944 }
7945 self.selection_history.mode = SelectionHistoryMode::Normal;
7946 }
7947
7948 pub fn redo_selection(&mut self, _: &RedoSelection, cx: &mut ViewContext<Self>) {
7949 self.end_selection(cx);
7950 self.selection_history.mode = SelectionHistoryMode::Redoing;
7951 if let Some(entry) = self.selection_history.redo_stack.pop_back() {
7952 self.change_selections(None, cx, |s| s.select_anchors(entry.selections.to_vec()));
7953 self.select_next_state = entry.select_next_state;
7954 self.select_prev_state = entry.select_prev_state;
7955 self.add_selections_state = entry.add_selections_state;
7956 self.request_autoscroll(Autoscroll::newest(), cx);
7957 }
7958 self.selection_history.mode = SelectionHistoryMode::Normal;
7959 }
7960
7961 pub fn expand_excerpts(&mut self, action: &ExpandExcerpts, cx: &mut ViewContext<Self>) {
7962 let selections = self.selections.disjoint_anchors();
7963
7964 let lines = if action.lines == 0 { 3 } else { action.lines };
7965
7966 self.buffer.update(cx, |buffer, cx| {
7967 buffer.expand_excerpts(
7968 selections
7969 .into_iter()
7970 .map(|selection| selection.head().excerpt_id)
7971 .dedup(),
7972 lines,
7973 cx,
7974 )
7975 })
7976 }
7977
7978 pub fn expand_excerpt(&mut self, excerpt: ExcerptId, cx: &mut ViewContext<Self>) {
7979 self.buffer
7980 .update(cx, |buffer, cx| buffer.expand_excerpts([excerpt], 3, cx))
7981 }
7982
7983 fn go_to_diagnostic(&mut self, _: &GoToDiagnostic, cx: &mut ViewContext<Self>) {
7984 self.go_to_diagnostic_impl(Direction::Next, cx)
7985 }
7986
7987 fn go_to_prev_diagnostic(&mut self, _: &GoToPrevDiagnostic, cx: &mut ViewContext<Self>) {
7988 self.go_to_diagnostic_impl(Direction::Prev, cx)
7989 }
7990
7991 pub fn go_to_diagnostic_impl(&mut self, direction: Direction, cx: &mut ViewContext<Self>) {
7992 let buffer = self.buffer.read(cx).snapshot(cx);
7993 let selection = self.selections.newest::<usize>(cx);
7994
7995 // If there is an active Diagnostic Popover jump to its diagnostic instead.
7996 if direction == Direction::Next {
7997 if let Some(popover) = self.hover_state.diagnostic_popover.as_ref() {
7998 let (group_id, jump_to) = popover.activation_info();
7999 if self.activate_diagnostics(group_id, cx) {
8000 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8001 let mut new_selection = s.newest_anchor().clone();
8002 new_selection.collapse_to(jump_to, SelectionGoal::None);
8003 s.select_anchors(vec![new_selection.clone()]);
8004 });
8005 }
8006 return;
8007 }
8008 }
8009
8010 let mut active_primary_range = self.active_diagnostics.as_ref().map(|active_diagnostics| {
8011 active_diagnostics
8012 .primary_range
8013 .to_offset(&buffer)
8014 .to_inclusive()
8015 });
8016 let mut search_start = if let Some(active_primary_range) = active_primary_range.as_ref() {
8017 if active_primary_range.contains(&selection.head()) {
8018 *active_primary_range.end()
8019 } else {
8020 selection.head()
8021 }
8022 } else {
8023 selection.head()
8024 };
8025 let snapshot = self.snapshot(cx);
8026 loop {
8027 let mut diagnostics = if direction == Direction::Prev {
8028 buffer.diagnostics_in_range::<_, usize>(0..search_start, true)
8029 } else {
8030 buffer.diagnostics_in_range::<_, usize>(search_start..buffer.len(), false)
8031 }
8032 .filter(|diagnostic| !snapshot.intersects_fold(diagnostic.range.start));
8033 let group = diagnostics.find_map(|entry| {
8034 if entry.diagnostic.is_primary
8035 && entry.diagnostic.severity <= DiagnosticSeverity::WARNING
8036 && !entry.range.is_empty()
8037 && Some(entry.range.end) != active_primary_range.as_ref().map(|r| *r.end())
8038 && !entry.range.contains(&search_start)
8039 {
8040 Some((entry.range, entry.diagnostic.group_id))
8041 } else {
8042 None
8043 }
8044 });
8045
8046 if let Some((primary_range, group_id)) = group {
8047 if self.activate_diagnostics(group_id, cx) {
8048 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8049 s.select(vec![Selection {
8050 id: selection.id,
8051 start: primary_range.start,
8052 end: primary_range.start,
8053 reversed: false,
8054 goal: SelectionGoal::None,
8055 }]);
8056 });
8057 }
8058 break;
8059 } else {
8060 // Cycle around to the start of the buffer, potentially moving back to the start of
8061 // the currently active diagnostic.
8062 active_primary_range.take();
8063 if direction == Direction::Prev {
8064 if search_start == buffer.len() {
8065 break;
8066 } else {
8067 search_start = buffer.len();
8068 }
8069 } else if search_start == 0 {
8070 break;
8071 } else {
8072 search_start = 0;
8073 }
8074 }
8075 }
8076 }
8077
8078 fn go_to_hunk(&mut self, _: &GoToHunk, cx: &mut ViewContext<Self>) {
8079 let snapshot = self
8080 .display_map
8081 .update(cx, |display_map, cx| display_map.snapshot(cx));
8082 let selection = self.selections.newest::<Point>(cx);
8083
8084 if !self.seek_in_direction(
8085 &snapshot,
8086 selection.head(),
8087 false,
8088 snapshot.buffer_snapshot.git_diff_hunks_in_range(
8089 MultiBufferRow(selection.head().row + 1)..MultiBufferRow::MAX,
8090 ),
8091 cx,
8092 ) {
8093 let wrapped_point = Point::zero();
8094 self.seek_in_direction(
8095 &snapshot,
8096 wrapped_point,
8097 true,
8098 snapshot.buffer_snapshot.git_diff_hunks_in_range(
8099 MultiBufferRow(wrapped_point.row + 1)..MultiBufferRow::MAX,
8100 ),
8101 cx,
8102 );
8103 }
8104 }
8105
8106 fn go_to_prev_hunk(&mut self, _: &GoToPrevHunk, cx: &mut ViewContext<Self>) {
8107 let snapshot = self
8108 .display_map
8109 .update(cx, |display_map, cx| display_map.snapshot(cx));
8110 let selection = self.selections.newest::<Point>(cx);
8111
8112 if !self.seek_in_direction(
8113 &snapshot,
8114 selection.head(),
8115 false,
8116 snapshot.buffer_snapshot.git_diff_hunks_in_range_rev(
8117 MultiBufferRow(0)..MultiBufferRow(selection.head().row),
8118 ),
8119 cx,
8120 ) {
8121 let wrapped_point = snapshot.buffer_snapshot.max_point();
8122 self.seek_in_direction(
8123 &snapshot,
8124 wrapped_point,
8125 true,
8126 snapshot.buffer_snapshot.git_diff_hunks_in_range_rev(
8127 MultiBufferRow(0)..MultiBufferRow(wrapped_point.row),
8128 ),
8129 cx,
8130 );
8131 }
8132 }
8133
8134 fn seek_in_direction(
8135 &mut self,
8136 snapshot: &DisplaySnapshot,
8137 initial_point: Point,
8138 is_wrapped: bool,
8139 hunks: impl Iterator<Item = DiffHunk<MultiBufferRow>>,
8140 cx: &mut ViewContext<Editor>,
8141 ) -> bool {
8142 let display_point = initial_point.to_display_point(snapshot);
8143 let mut hunks = hunks
8144 .map(|hunk| diff_hunk_to_display(&hunk, &snapshot))
8145 .filter(|hunk| {
8146 if is_wrapped {
8147 true
8148 } else {
8149 !hunk.contains_display_row(display_point.row())
8150 }
8151 })
8152 .dedup();
8153
8154 if let Some(hunk) = hunks.next() {
8155 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8156 let row = hunk.start_display_row();
8157 let point = DisplayPoint::new(row, 0);
8158 s.select_display_ranges([point..point]);
8159 });
8160
8161 true
8162 } else {
8163 false
8164 }
8165 }
8166
8167 pub fn go_to_definition(
8168 &mut self,
8169 _: &GoToDefinition,
8170 cx: &mut ViewContext<Self>,
8171 ) -> Task<Result<bool>> {
8172 self.go_to_definition_of_kind(GotoDefinitionKind::Symbol, false, cx)
8173 }
8174
8175 pub fn go_to_implementation(
8176 &mut self,
8177 _: &GoToImplementation,
8178 cx: &mut ViewContext<Self>,
8179 ) -> Task<Result<bool>> {
8180 self.go_to_definition_of_kind(GotoDefinitionKind::Implementation, false, cx)
8181 }
8182
8183 pub fn go_to_implementation_split(
8184 &mut self,
8185 _: &GoToImplementationSplit,
8186 cx: &mut ViewContext<Self>,
8187 ) -> Task<Result<bool>> {
8188 self.go_to_definition_of_kind(GotoDefinitionKind::Implementation, true, cx)
8189 }
8190
8191 pub fn go_to_type_definition(
8192 &mut self,
8193 _: &GoToTypeDefinition,
8194 cx: &mut ViewContext<Self>,
8195 ) -> Task<Result<bool>> {
8196 self.go_to_definition_of_kind(GotoDefinitionKind::Type, false, cx)
8197 }
8198
8199 pub fn go_to_definition_split(
8200 &mut self,
8201 _: &GoToDefinitionSplit,
8202 cx: &mut ViewContext<Self>,
8203 ) -> Task<Result<bool>> {
8204 self.go_to_definition_of_kind(GotoDefinitionKind::Symbol, true, cx)
8205 }
8206
8207 pub fn go_to_type_definition_split(
8208 &mut self,
8209 _: &GoToTypeDefinitionSplit,
8210 cx: &mut ViewContext<Self>,
8211 ) -> Task<Result<bool>> {
8212 self.go_to_definition_of_kind(GotoDefinitionKind::Type, true, cx)
8213 }
8214
8215 fn go_to_definition_of_kind(
8216 &mut self,
8217 kind: GotoDefinitionKind,
8218 split: bool,
8219 cx: &mut ViewContext<Self>,
8220 ) -> Task<Result<bool>> {
8221 let Some(workspace) = self.workspace() else {
8222 return Task::ready(Ok(false));
8223 };
8224 let buffer = self.buffer.read(cx);
8225 let head = self.selections.newest::<usize>(cx).head();
8226 let (buffer, head) = if let Some(text_anchor) = buffer.text_anchor_for_position(head, cx) {
8227 text_anchor
8228 } else {
8229 return Task::ready(Ok(false));
8230 };
8231
8232 let project = workspace.read(cx).project().clone();
8233 let definitions = project.update(cx, |project, cx| match kind {
8234 GotoDefinitionKind::Symbol => project.definition(&buffer, head, cx),
8235 GotoDefinitionKind::Type => project.type_definition(&buffer, head, cx),
8236 GotoDefinitionKind::Implementation => project.implementation(&buffer, head, cx),
8237 });
8238
8239 cx.spawn(|editor, mut cx| async move {
8240 let definitions = definitions.await?;
8241 let navigated = editor
8242 .update(&mut cx, |editor, cx| {
8243 editor.navigate_to_hover_links(
8244 Some(kind),
8245 definitions
8246 .into_iter()
8247 .filter(|location| {
8248 hover_links::exclude_link_to_position(&buffer, &head, location, cx)
8249 })
8250 .map(HoverLink::Text)
8251 .collect::<Vec<_>>(),
8252 split,
8253 cx,
8254 )
8255 })?
8256 .await?;
8257 anyhow::Ok(navigated)
8258 })
8259 }
8260
8261 pub fn open_url(&mut self, _: &OpenUrl, cx: &mut ViewContext<Self>) {
8262 let position = self.selections.newest_anchor().head();
8263 let Some((buffer, buffer_position)) =
8264 self.buffer.read(cx).text_anchor_for_position(position, cx)
8265 else {
8266 return;
8267 };
8268
8269 cx.spawn(|editor, mut cx| async move {
8270 if let Some((_, url)) = find_url(&buffer, buffer_position, cx.clone()) {
8271 editor.update(&mut cx, |_, cx| {
8272 cx.open_url(&url);
8273 })
8274 } else {
8275 Ok(())
8276 }
8277 })
8278 .detach();
8279 }
8280
8281 pub(crate) fn navigate_to_hover_links(
8282 &mut self,
8283 kind: Option<GotoDefinitionKind>,
8284 mut definitions: Vec<HoverLink>,
8285 split: bool,
8286 cx: &mut ViewContext<Editor>,
8287 ) -> Task<Result<bool>> {
8288 // If there is one definition, just open it directly
8289 if definitions.len() == 1 {
8290 let definition = definitions.pop().unwrap();
8291 let target_task = match definition {
8292 HoverLink::Text(link) => Task::Ready(Some(Ok(Some(link.target)))),
8293 HoverLink::InlayHint(lsp_location, server_id) => {
8294 self.compute_target_location(lsp_location, server_id, cx)
8295 }
8296 HoverLink::Url(url) => {
8297 cx.open_url(&url);
8298 Task::ready(Ok(None))
8299 }
8300 };
8301 cx.spawn(|editor, mut cx| async move {
8302 let target = target_task.await.context("target resolution task")?;
8303 if let Some(target) = target {
8304 editor.update(&mut cx, |editor, cx| {
8305 let Some(workspace) = editor.workspace() else {
8306 return false;
8307 };
8308 let pane = workspace.read(cx).active_pane().clone();
8309
8310 let range = target.range.to_offset(target.buffer.read(cx));
8311 let range = editor.range_for_match(&range);
8312 if Some(&target.buffer) == editor.buffer.read(cx).as_singleton().as_ref() {
8313 editor.change_selections(Some(Autoscroll::focused()), cx, |s| {
8314 s.select_ranges([range]);
8315 });
8316 } else {
8317 cx.window_context().defer(move |cx| {
8318 let target_editor: View<Self> =
8319 workspace.update(cx, |workspace, cx| {
8320 let pane = if split {
8321 workspace.adjacent_pane(cx)
8322 } else {
8323 workspace.active_pane().clone()
8324 };
8325
8326 workspace.open_project_item(pane, target.buffer.clone(), cx)
8327 });
8328 target_editor.update(cx, |target_editor, cx| {
8329 // When selecting a definition in a different buffer, disable the nav history
8330 // to avoid creating a history entry at the previous cursor location.
8331 pane.update(cx, |pane, _| pane.disable_history());
8332 target_editor.change_selections(
8333 Some(Autoscroll::focused()),
8334 cx,
8335 |s| {
8336 s.select_ranges([range]);
8337 },
8338 );
8339 pane.update(cx, |pane, _| pane.enable_history());
8340 });
8341 });
8342 }
8343 true
8344 })
8345 } else {
8346 Ok(false)
8347 }
8348 })
8349 } else if !definitions.is_empty() {
8350 let replica_id = self.replica_id(cx);
8351 cx.spawn(|editor, mut cx| async move {
8352 let (title, location_tasks, workspace) = editor
8353 .update(&mut cx, |editor, cx| {
8354 let tab_kind = match kind {
8355 Some(GotoDefinitionKind::Implementation) => "Implementations",
8356 _ => "Definitions",
8357 };
8358 let title = definitions
8359 .iter()
8360 .find_map(|definition| match definition {
8361 HoverLink::Text(link) => link.origin.as_ref().map(|origin| {
8362 let buffer = origin.buffer.read(cx);
8363 format!(
8364 "{} for {}",
8365 tab_kind,
8366 buffer
8367 .text_for_range(origin.range.clone())
8368 .collect::<String>()
8369 )
8370 }),
8371 HoverLink::InlayHint(_, _) => None,
8372 HoverLink::Url(_) => None,
8373 })
8374 .unwrap_or(tab_kind.to_string());
8375 let location_tasks = definitions
8376 .into_iter()
8377 .map(|definition| match definition {
8378 HoverLink::Text(link) => Task::Ready(Some(Ok(Some(link.target)))),
8379 HoverLink::InlayHint(lsp_location, server_id) => {
8380 editor.compute_target_location(lsp_location, server_id, cx)
8381 }
8382 HoverLink::Url(_) => Task::ready(Ok(None)),
8383 })
8384 .collect::<Vec<_>>();
8385 (title, location_tasks, editor.workspace().clone())
8386 })
8387 .context("location tasks preparation")?;
8388
8389 let locations = futures::future::join_all(location_tasks)
8390 .await
8391 .into_iter()
8392 .filter_map(|location| location.transpose())
8393 .collect::<Result<_>>()
8394 .context("location tasks")?;
8395
8396 let Some(workspace) = workspace else {
8397 return Ok(false);
8398 };
8399 let opened = workspace
8400 .update(&mut cx, |workspace, cx| {
8401 Self::open_locations_in_multibuffer(
8402 workspace, locations, replica_id, title, split, cx,
8403 )
8404 })
8405 .ok();
8406
8407 anyhow::Ok(opened.is_some())
8408 })
8409 } else {
8410 Task::ready(Ok(false))
8411 }
8412 }
8413
8414 fn compute_target_location(
8415 &self,
8416 lsp_location: lsp::Location,
8417 server_id: LanguageServerId,
8418 cx: &mut ViewContext<Editor>,
8419 ) -> Task<anyhow::Result<Option<Location>>> {
8420 let Some(project) = self.project.clone() else {
8421 return Task::Ready(Some(Ok(None)));
8422 };
8423
8424 cx.spawn(move |editor, mut cx| async move {
8425 let location_task = editor.update(&mut cx, |editor, cx| {
8426 project.update(cx, |project, cx| {
8427 let language_server_name =
8428 editor.buffer.read(cx).as_singleton().and_then(|buffer| {
8429 project
8430 .language_server_for_buffer(buffer.read(cx), server_id, cx)
8431 .map(|(lsp_adapter, _)| lsp_adapter.name.clone())
8432 });
8433 language_server_name.map(|language_server_name| {
8434 project.open_local_buffer_via_lsp(
8435 lsp_location.uri.clone(),
8436 server_id,
8437 language_server_name,
8438 cx,
8439 )
8440 })
8441 })
8442 })?;
8443 let location = match location_task {
8444 Some(task) => Some({
8445 let target_buffer_handle = task.await.context("open local buffer")?;
8446 let range = target_buffer_handle.update(&mut cx, |target_buffer, _| {
8447 let target_start = target_buffer
8448 .clip_point_utf16(point_from_lsp(lsp_location.range.start), Bias::Left);
8449 let target_end = target_buffer
8450 .clip_point_utf16(point_from_lsp(lsp_location.range.end), Bias::Left);
8451 target_buffer.anchor_after(target_start)
8452 ..target_buffer.anchor_before(target_end)
8453 })?;
8454 Location {
8455 buffer: target_buffer_handle,
8456 range,
8457 }
8458 }),
8459 None => None,
8460 };
8461 Ok(location)
8462 })
8463 }
8464
8465 pub fn find_all_references(
8466 &mut self,
8467 _: &FindAllReferences,
8468 cx: &mut ViewContext<Self>,
8469 ) -> Option<Task<Result<()>>> {
8470 let multi_buffer = self.buffer.read(cx);
8471 let selection = self.selections.newest::<usize>(cx);
8472 let head = selection.head();
8473
8474 let multi_buffer_snapshot = multi_buffer.snapshot(cx);
8475 let head_anchor = multi_buffer_snapshot.anchor_at(
8476 head,
8477 if head < selection.tail() {
8478 Bias::Right
8479 } else {
8480 Bias::Left
8481 },
8482 );
8483
8484 match self
8485 .find_all_references_task_sources
8486 .binary_search_by(|anchor| anchor.cmp(&head_anchor, &multi_buffer_snapshot))
8487 {
8488 Ok(_) => {
8489 log::info!(
8490 "Ignoring repeated FindAllReferences invocation with the position of already running task"
8491 );
8492 return None;
8493 }
8494 Err(i) => {
8495 self.find_all_references_task_sources.insert(i, head_anchor);
8496 }
8497 }
8498
8499 let (buffer, head) = multi_buffer.text_anchor_for_position(head, cx)?;
8500 let replica_id = self.replica_id(cx);
8501 let workspace = self.workspace()?;
8502 let project = workspace.read(cx).project().clone();
8503 let references = project.update(cx, |project, cx| project.references(&buffer, head, cx));
8504 Some(cx.spawn(|editor, mut cx| async move {
8505 let _cleanup = defer({
8506 let mut cx = cx.clone();
8507 move || {
8508 let _ = editor.update(&mut cx, |editor, _| {
8509 if let Ok(i) =
8510 editor
8511 .find_all_references_task_sources
8512 .binary_search_by(|anchor| {
8513 anchor.cmp(&head_anchor, &multi_buffer_snapshot)
8514 })
8515 {
8516 editor.find_all_references_task_sources.remove(i);
8517 }
8518 });
8519 }
8520 });
8521
8522 let locations = references.await?;
8523 if locations.is_empty() {
8524 return anyhow::Ok(());
8525 }
8526
8527 workspace.update(&mut cx, |workspace, cx| {
8528 let title = locations
8529 .first()
8530 .as_ref()
8531 .map(|location| {
8532 let buffer = location.buffer.read(cx);
8533 format!(
8534 "References to `{}`",
8535 buffer
8536 .text_for_range(location.range.clone())
8537 .collect::<String>()
8538 )
8539 })
8540 .unwrap();
8541 Self::open_locations_in_multibuffer(
8542 workspace, locations, replica_id, title, false, cx,
8543 );
8544 })
8545 }))
8546 }
8547
8548 /// Opens a multibuffer with the given project locations in it
8549 pub fn open_locations_in_multibuffer(
8550 workspace: &mut Workspace,
8551 mut locations: Vec<Location>,
8552 replica_id: ReplicaId,
8553 title: String,
8554 split: bool,
8555 cx: &mut ViewContext<Workspace>,
8556 ) {
8557 // If there are multiple definitions, open them in a multibuffer
8558 locations.sort_by_key(|location| location.buffer.read(cx).remote_id());
8559 let mut locations = locations.into_iter().peekable();
8560 let mut ranges_to_highlight = Vec::new();
8561 let capability = workspace.project().read(cx).capability();
8562
8563 let excerpt_buffer = cx.new_model(|cx| {
8564 let mut multibuffer = MultiBuffer::new(replica_id, capability);
8565 while let Some(location) = locations.next() {
8566 let buffer = location.buffer.read(cx);
8567 let mut ranges_for_buffer = Vec::new();
8568 let range = location.range.to_offset(buffer);
8569 ranges_for_buffer.push(range.clone());
8570
8571 while let Some(next_location) = locations.peek() {
8572 if next_location.buffer == location.buffer {
8573 ranges_for_buffer.push(next_location.range.to_offset(buffer));
8574 locations.next();
8575 } else {
8576 break;
8577 }
8578 }
8579
8580 ranges_for_buffer.sort_by_key(|range| (range.start, Reverse(range.end)));
8581 ranges_to_highlight.extend(multibuffer.push_excerpts_with_context_lines(
8582 location.buffer.clone(),
8583 ranges_for_buffer,
8584 DEFAULT_MULTIBUFFER_CONTEXT,
8585 cx,
8586 ))
8587 }
8588
8589 multibuffer.with_title(title)
8590 });
8591
8592 let editor = cx.new_view(|cx| {
8593 Editor::for_multibuffer(excerpt_buffer, Some(workspace.project().clone()), cx)
8594 });
8595 editor.update(cx, |editor, cx| {
8596 editor.highlight_background::<Self>(
8597 &ranges_to_highlight,
8598 |theme| theme.editor_highlighted_line_background,
8599 cx,
8600 );
8601 });
8602
8603 let item = Box::new(editor);
8604 let item_id = item.item_id();
8605
8606 if split {
8607 workspace.split_item(SplitDirection::Right, item.clone(), cx);
8608 } else {
8609 let destination_index = workspace.active_pane().update(cx, |pane, cx| {
8610 if PreviewTabsSettings::get_global(cx).enable_preview_from_code_navigation {
8611 pane.close_current_preview_item(cx)
8612 } else {
8613 None
8614 }
8615 });
8616 workspace.add_item_to_active_pane(item.clone(), destination_index, cx);
8617 }
8618 workspace.active_pane().update(cx, |pane, cx| {
8619 pane.set_preview_item_id(Some(item_id), cx);
8620 });
8621 }
8622
8623 pub fn rename(&mut self, _: &Rename, cx: &mut ViewContext<Self>) -> Option<Task<Result<()>>> {
8624 use language::ToOffset as _;
8625
8626 let project = self.project.clone()?;
8627 let selection = self.selections.newest_anchor().clone();
8628 let (cursor_buffer, cursor_buffer_position) = self
8629 .buffer
8630 .read(cx)
8631 .text_anchor_for_position(selection.head(), cx)?;
8632 let (tail_buffer, cursor_buffer_position_end) = self
8633 .buffer
8634 .read(cx)
8635 .text_anchor_for_position(selection.tail(), cx)?;
8636 if tail_buffer != cursor_buffer {
8637 return None;
8638 }
8639
8640 let snapshot = cursor_buffer.read(cx).snapshot();
8641 let cursor_buffer_offset = cursor_buffer_position.to_offset(&snapshot);
8642 let cursor_buffer_offset_end = cursor_buffer_position_end.to_offset(&snapshot);
8643 let prepare_rename = project.update(cx, |project, cx| {
8644 project.prepare_rename(cursor_buffer.clone(), cursor_buffer_offset, cx)
8645 });
8646 drop(snapshot);
8647
8648 Some(cx.spawn(|this, mut cx| async move {
8649 let rename_range = if let Some(range) = prepare_rename.await? {
8650 Some(range)
8651 } else {
8652 this.update(&mut cx, |this, cx| {
8653 let buffer = this.buffer.read(cx).snapshot(cx);
8654 let mut buffer_highlights = this
8655 .document_highlights_for_position(selection.head(), &buffer)
8656 .filter(|highlight| {
8657 highlight.start.excerpt_id == selection.head().excerpt_id
8658 && highlight.end.excerpt_id == selection.head().excerpt_id
8659 });
8660 buffer_highlights
8661 .next()
8662 .map(|highlight| highlight.start.text_anchor..highlight.end.text_anchor)
8663 })?
8664 };
8665 if let Some(rename_range) = rename_range {
8666 this.update(&mut cx, |this, cx| {
8667 let snapshot = cursor_buffer.read(cx).snapshot();
8668 let rename_buffer_range = rename_range.to_offset(&snapshot);
8669 let cursor_offset_in_rename_range =
8670 cursor_buffer_offset.saturating_sub(rename_buffer_range.start);
8671 let cursor_offset_in_rename_range_end =
8672 cursor_buffer_offset_end.saturating_sub(rename_buffer_range.start);
8673
8674 this.take_rename(false, cx);
8675 let buffer = this.buffer.read(cx).read(cx);
8676 let cursor_offset = selection.head().to_offset(&buffer);
8677 let rename_start = cursor_offset.saturating_sub(cursor_offset_in_rename_range);
8678 let rename_end = rename_start + rename_buffer_range.len();
8679 let range = buffer.anchor_before(rename_start)..buffer.anchor_after(rename_end);
8680 let mut old_highlight_id = None;
8681 let old_name: Arc<str> = buffer
8682 .chunks(rename_start..rename_end, true)
8683 .map(|chunk| {
8684 if old_highlight_id.is_none() {
8685 old_highlight_id = chunk.syntax_highlight_id;
8686 }
8687 chunk.text
8688 })
8689 .collect::<String>()
8690 .into();
8691
8692 drop(buffer);
8693
8694 // Position the selection in the rename editor so that it matches the current selection.
8695 this.show_local_selections = false;
8696 let rename_editor = cx.new_view(|cx| {
8697 let mut editor = Editor::single_line(cx);
8698 editor.buffer.update(cx, |buffer, cx| {
8699 buffer.edit([(0..0, old_name.clone())], None, cx)
8700 });
8701 let rename_selection_range = match cursor_offset_in_rename_range
8702 .cmp(&cursor_offset_in_rename_range_end)
8703 {
8704 Ordering::Equal => {
8705 editor.select_all(&SelectAll, cx);
8706 return editor;
8707 }
8708 Ordering::Less => {
8709 cursor_offset_in_rename_range..cursor_offset_in_rename_range_end
8710 }
8711 Ordering::Greater => {
8712 cursor_offset_in_rename_range_end..cursor_offset_in_rename_range
8713 }
8714 };
8715 if rename_selection_range.end > old_name.len() {
8716 editor.select_all(&SelectAll, cx);
8717 } else {
8718 editor.change_selections(Some(Autoscroll::fit()), cx, |s| {
8719 s.select_ranges([rename_selection_range]);
8720 });
8721 }
8722 editor
8723 });
8724
8725 let write_highlights =
8726 this.clear_background_highlights::<DocumentHighlightWrite>(cx);
8727 let read_highlights =
8728 this.clear_background_highlights::<DocumentHighlightRead>(cx);
8729 let ranges = write_highlights
8730 .iter()
8731 .flat_map(|(_, ranges)| ranges.iter())
8732 .chain(read_highlights.iter().flat_map(|(_, ranges)| ranges.iter()))
8733 .cloned()
8734 .collect();
8735
8736 this.highlight_text::<Rename>(
8737 ranges,
8738 HighlightStyle {
8739 fade_out: Some(0.6),
8740 ..Default::default()
8741 },
8742 cx,
8743 );
8744 let rename_focus_handle = rename_editor.focus_handle(cx);
8745 cx.focus(&rename_focus_handle);
8746 let block_id = this.insert_blocks(
8747 [BlockProperties {
8748 style: BlockStyle::Flex,
8749 position: range.start,
8750 height: 1,
8751 render: Box::new({
8752 let rename_editor = rename_editor.clone();
8753 move |cx: &mut BlockContext| {
8754 let mut text_style = cx.editor_style.text.clone();
8755 if let Some(highlight_style) = old_highlight_id
8756 .and_then(|h| h.style(&cx.editor_style.syntax))
8757 {
8758 text_style = text_style.highlight(highlight_style);
8759 }
8760 div()
8761 .pl(cx.anchor_x)
8762 .child(EditorElement::new(
8763 &rename_editor,
8764 EditorStyle {
8765 background: cx.theme().system().transparent,
8766 local_player: cx.editor_style.local_player,
8767 text: text_style,
8768 scrollbar_width: cx.editor_style.scrollbar_width,
8769 syntax: cx.editor_style.syntax.clone(),
8770 status: cx.editor_style.status.clone(),
8771 inlay_hints_style: HighlightStyle {
8772 color: Some(cx.theme().status().hint),
8773 font_weight: Some(FontWeight::BOLD),
8774 ..HighlightStyle::default()
8775 },
8776 suggestions_style: HighlightStyle {
8777 color: Some(cx.theme().status().predictive),
8778 ..HighlightStyle::default()
8779 },
8780 },
8781 ))
8782 .into_any_element()
8783 }
8784 }),
8785 disposition: BlockDisposition::Below,
8786 }],
8787 Some(Autoscroll::fit()),
8788 cx,
8789 )[0];
8790 this.pending_rename = Some(RenameState {
8791 range,
8792 old_name,
8793 editor: rename_editor,
8794 block_id,
8795 });
8796 })?;
8797 }
8798
8799 Ok(())
8800 }))
8801 }
8802
8803 pub fn confirm_rename(
8804 &mut self,
8805 _: &ConfirmRename,
8806 cx: &mut ViewContext<Self>,
8807 ) -> Option<Task<Result<()>>> {
8808 let rename = self.take_rename(false, cx)?;
8809 let workspace = self.workspace()?;
8810 let (start_buffer, start) = self
8811 .buffer
8812 .read(cx)
8813 .text_anchor_for_position(rename.range.start, cx)?;
8814 let (end_buffer, end) = self
8815 .buffer
8816 .read(cx)
8817 .text_anchor_for_position(rename.range.end, cx)?;
8818 if start_buffer != end_buffer {
8819 return None;
8820 }
8821
8822 let buffer = start_buffer;
8823 let range = start..end;
8824 let old_name = rename.old_name;
8825 let new_name = rename.editor.read(cx).text(cx);
8826
8827 let rename = workspace
8828 .read(cx)
8829 .project()
8830 .clone()
8831 .update(cx, |project, cx| {
8832 project.perform_rename(buffer.clone(), range.start, new_name.clone(), true, cx)
8833 });
8834 let workspace = workspace.downgrade();
8835
8836 Some(cx.spawn(|editor, mut cx| async move {
8837 let project_transaction = rename.await?;
8838 Self::open_project_transaction(
8839 &editor,
8840 workspace,
8841 project_transaction,
8842 format!("Rename: {} → {}", old_name, new_name),
8843 cx.clone(),
8844 )
8845 .await?;
8846
8847 editor.update(&mut cx, |editor, cx| {
8848 editor.refresh_document_highlights(cx);
8849 })?;
8850 Ok(())
8851 }))
8852 }
8853
8854 fn take_rename(
8855 &mut self,
8856 moving_cursor: bool,
8857 cx: &mut ViewContext<Self>,
8858 ) -> Option<RenameState> {
8859 let rename = self.pending_rename.take()?;
8860 if rename.editor.focus_handle(cx).is_focused(cx) {
8861 cx.focus(&self.focus_handle);
8862 }
8863
8864 self.remove_blocks(
8865 [rename.block_id].into_iter().collect(),
8866 Some(Autoscroll::fit()),
8867 cx,
8868 );
8869 self.clear_highlights::<Rename>(cx);
8870 self.show_local_selections = true;
8871
8872 if moving_cursor {
8873 let rename_editor = rename.editor.read(cx);
8874 let cursor_in_rename_editor = rename_editor.selections.newest::<usize>(cx).head();
8875
8876 // Update the selection to match the position of the selection inside
8877 // the rename editor.
8878 let snapshot = self.buffer.read(cx).read(cx);
8879 let rename_range = rename.range.to_offset(&snapshot);
8880 let cursor_in_editor = snapshot
8881 .clip_offset(rename_range.start + cursor_in_rename_editor, Bias::Left)
8882 .min(rename_range.end);
8883 drop(snapshot);
8884
8885 self.change_selections(None, cx, |s| {
8886 s.select_ranges(vec![cursor_in_editor..cursor_in_editor])
8887 });
8888 } else {
8889 self.refresh_document_highlights(cx);
8890 }
8891
8892 Some(rename)
8893 }
8894
8895 pub fn pending_rename(&self) -> Option<&RenameState> {
8896 self.pending_rename.as_ref()
8897 }
8898
8899 fn format(&mut self, _: &Format, cx: &mut ViewContext<Self>) -> Option<Task<Result<()>>> {
8900 let project = match &self.project {
8901 Some(project) => project.clone(),
8902 None => return None,
8903 };
8904
8905 Some(self.perform_format(project, FormatTrigger::Manual, cx))
8906 }
8907
8908 fn perform_format(
8909 &mut self,
8910 project: Model<Project>,
8911 trigger: FormatTrigger,
8912 cx: &mut ViewContext<Self>,
8913 ) -> Task<Result<()>> {
8914 let buffer = self.buffer().clone();
8915 let mut buffers = buffer.read(cx).all_buffers();
8916 if trigger == FormatTrigger::Save {
8917 buffers.retain(|buffer| buffer.read(cx).is_dirty());
8918 }
8919
8920 let mut timeout = cx.background_executor().timer(FORMAT_TIMEOUT).fuse();
8921 let format = project.update(cx, |project, cx| project.format(buffers, true, trigger, cx));
8922
8923 cx.spawn(|_, mut cx| async move {
8924 let transaction = futures::select_biased! {
8925 () = timeout => {
8926 log::warn!("timed out waiting for formatting");
8927 None
8928 }
8929 transaction = format.log_err().fuse() => transaction,
8930 };
8931
8932 buffer
8933 .update(&mut cx, |buffer, cx| {
8934 if let Some(transaction) = transaction {
8935 if !buffer.is_singleton() {
8936 buffer.push_transaction(&transaction.0, cx);
8937 }
8938 }
8939
8940 cx.notify();
8941 })
8942 .ok();
8943
8944 Ok(())
8945 })
8946 }
8947
8948 fn restart_language_server(&mut self, _: &RestartLanguageServer, cx: &mut ViewContext<Self>) {
8949 if let Some(project) = self.project.clone() {
8950 self.buffer.update(cx, |multi_buffer, cx| {
8951 project.update(cx, |project, cx| {
8952 project.restart_language_servers_for_buffers(multi_buffer.all_buffers(), cx);
8953 });
8954 })
8955 }
8956 }
8957
8958 fn show_character_palette(&mut self, _: &ShowCharacterPalette, cx: &mut ViewContext<Self>) {
8959 cx.show_character_palette();
8960 }
8961
8962 fn refresh_active_diagnostics(&mut self, cx: &mut ViewContext<Editor>) {
8963 if let Some(active_diagnostics) = self.active_diagnostics.as_mut() {
8964 let buffer = self.buffer.read(cx).snapshot(cx);
8965 let primary_range_start = active_diagnostics.primary_range.start.to_offset(&buffer);
8966 let is_valid = buffer
8967 .diagnostics_in_range::<_, usize>(active_diagnostics.primary_range.clone(), false)
8968 .any(|entry| {
8969 entry.diagnostic.is_primary
8970 && !entry.range.is_empty()
8971 && entry.range.start == primary_range_start
8972 && entry.diagnostic.message == active_diagnostics.primary_message
8973 });
8974
8975 if is_valid != active_diagnostics.is_valid {
8976 active_diagnostics.is_valid = is_valid;
8977 let mut new_styles = HashMap::default();
8978 for (block_id, diagnostic) in &active_diagnostics.blocks {
8979 new_styles.insert(
8980 *block_id,
8981 diagnostic_block_renderer(diagnostic.clone(), is_valid),
8982 );
8983 }
8984 self.display_map
8985 .update(cx, |display_map, _| display_map.replace_blocks(new_styles));
8986 }
8987 }
8988 }
8989
8990 fn activate_diagnostics(&mut self, group_id: usize, cx: &mut ViewContext<Self>) -> bool {
8991 self.dismiss_diagnostics(cx);
8992 let snapshot = self.snapshot(cx);
8993 self.active_diagnostics = self.display_map.update(cx, |display_map, cx| {
8994 let buffer = self.buffer.read(cx).snapshot(cx);
8995
8996 let mut primary_range = None;
8997 let mut primary_message = None;
8998 let mut group_end = Point::zero();
8999 let diagnostic_group = buffer
9000 .diagnostic_group::<MultiBufferPoint>(group_id)
9001 .filter_map(|entry| {
9002 if snapshot.is_line_folded(MultiBufferRow(entry.range.start.row))
9003 && (entry.range.start.row == entry.range.end.row
9004 || snapshot.is_line_folded(MultiBufferRow(entry.range.end.row)))
9005 {
9006 return None;
9007 }
9008 if entry.range.end > group_end {
9009 group_end = entry.range.end;
9010 }
9011 if entry.diagnostic.is_primary {
9012 primary_range = Some(entry.range.clone());
9013 primary_message = Some(entry.diagnostic.message.clone());
9014 }
9015 Some(entry)
9016 })
9017 .collect::<Vec<_>>();
9018 let primary_range = primary_range?;
9019 let primary_message = primary_message?;
9020 let primary_range =
9021 buffer.anchor_after(primary_range.start)..buffer.anchor_before(primary_range.end);
9022
9023 let blocks = display_map
9024 .insert_blocks(
9025 diagnostic_group.iter().map(|entry| {
9026 let diagnostic = entry.diagnostic.clone();
9027 let message_height = diagnostic.message.matches('\n').count() as u8 + 1;
9028 BlockProperties {
9029 style: BlockStyle::Fixed,
9030 position: buffer.anchor_after(entry.range.start),
9031 height: message_height,
9032 render: diagnostic_block_renderer(diagnostic, true),
9033 disposition: BlockDisposition::Below,
9034 }
9035 }),
9036 cx,
9037 )
9038 .into_iter()
9039 .zip(diagnostic_group.into_iter().map(|entry| entry.diagnostic))
9040 .collect();
9041
9042 Some(ActiveDiagnosticGroup {
9043 primary_range,
9044 primary_message,
9045 blocks,
9046 is_valid: true,
9047 })
9048 });
9049 self.active_diagnostics.is_some()
9050 }
9051
9052 fn dismiss_diagnostics(&mut self, cx: &mut ViewContext<Self>) {
9053 if let Some(active_diagnostic_group) = self.active_diagnostics.take() {
9054 self.display_map.update(cx, |display_map, cx| {
9055 display_map.remove_blocks(active_diagnostic_group.blocks.into_keys().collect(), cx);
9056 });
9057 cx.notify();
9058 }
9059 }
9060
9061 pub fn set_selections_from_remote(
9062 &mut self,
9063 selections: Vec<Selection<Anchor>>,
9064 pending_selection: Option<Selection<Anchor>>,
9065 cx: &mut ViewContext<Self>,
9066 ) {
9067 let old_cursor_position = self.selections.newest_anchor().head();
9068 self.selections.change_with(cx, |s| {
9069 s.select_anchors(selections);
9070 if let Some(pending_selection) = pending_selection {
9071 s.set_pending(pending_selection, SelectMode::Character);
9072 } else {
9073 s.clear_pending();
9074 }
9075 });
9076 self.selections_did_change(false, &old_cursor_position, cx);
9077 }
9078
9079 fn push_to_selection_history(&mut self) {
9080 self.selection_history.push(SelectionHistoryEntry {
9081 selections: self.selections.disjoint_anchors(),
9082 select_next_state: self.select_next_state.clone(),
9083 select_prev_state: self.select_prev_state.clone(),
9084 add_selections_state: self.add_selections_state.clone(),
9085 });
9086 }
9087
9088 pub fn transact(
9089 &mut self,
9090 cx: &mut ViewContext<Self>,
9091 update: impl FnOnce(&mut Self, &mut ViewContext<Self>),
9092 ) -> Option<TransactionId> {
9093 self.start_transaction_at(Instant::now(), cx);
9094 update(self, cx);
9095 self.end_transaction_at(Instant::now(), cx)
9096 }
9097
9098 fn start_transaction_at(&mut self, now: Instant, cx: &mut ViewContext<Self>) {
9099 self.end_selection(cx);
9100 if let Some(tx_id) = self
9101 .buffer
9102 .update(cx, |buffer, cx| buffer.start_transaction_at(now, cx))
9103 {
9104 self.selection_history
9105 .insert_transaction(tx_id, self.selections.disjoint_anchors());
9106 cx.emit(EditorEvent::TransactionBegun {
9107 transaction_id: tx_id,
9108 })
9109 }
9110 }
9111
9112 fn end_transaction_at(
9113 &mut self,
9114 now: Instant,
9115 cx: &mut ViewContext<Self>,
9116 ) -> Option<TransactionId> {
9117 if let Some(tx_id) = self
9118 .buffer
9119 .update(cx, |buffer, cx| buffer.end_transaction_at(now, cx))
9120 {
9121 if let Some((_, end_selections)) = self.selection_history.transaction_mut(tx_id) {
9122 *end_selections = Some(self.selections.disjoint_anchors());
9123 } else {
9124 log::error!("unexpectedly ended a transaction that wasn't started by this editor");
9125 }
9126
9127 cx.emit(EditorEvent::Edited);
9128 Some(tx_id)
9129 } else {
9130 None
9131 }
9132 }
9133
9134 pub fn fold(&mut self, _: &actions::Fold, cx: &mut ViewContext<Self>) {
9135 let mut fold_ranges = Vec::new();
9136
9137 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
9138
9139 let selections = self.selections.all_adjusted(cx);
9140 for selection in selections {
9141 let range = selection.range().sorted();
9142 let buffer_start_row = range.start.row;
9143
9144 for row in (0..=range.end.row).rev() {
9145 let fold_range = display_map.foldable_range(MultiBufferRow(row));
9146
9147 if let Some(fold_range) = fold_range {
9148 if fold_range.end.row >= buffer_start_row {
9149 fold_ranges.push(fold_range);
9150 if row <= range.start.row {
9151 break;
9152 }
9153 }
9154 }
9155 }
9156 }
9157
9158 self.fold_ranges(fold_ranges, true, cx);
9159 }
9160
9161 pub fn fold_at(&mut self, fold_at: &FoldAt, cx: &mut ViewContext<Self>) {
9162 let buffer_row = fold_at.buffer_row;
9163 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
9164
9165 if let Some(fold_range) = display_map.foldable_range(buffer_row) {
9166 let autoscroll = self
9167 .selections
9168 .all::<Point>(cx)
9169 .iter()
9170 .any(|selection| fold_range.overlaps(&selection.range()));
9171
9172 self.fold_ranges(std::iter::once(fold_range), autoscroll, cx);
9173 }
9174 }
9175
9176 pub fn unfold_lines(&mut self, _: &UnfoldLines, cx: &mut ViewContext<Self>) {
9177 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
9178 let buffer = &display_map.buffer_snapshot;
9179 let selections = self.selections.all::<Point>(cx);
9180 let ranges = selections
9181 .iter()
9182 .map(|s| {
9183 let range = s.display_range(&display_map).sorted();
9184 let mut start = range.start.to_point(&display_map);
9185 let mut end = range.end.to_point(&display_map);
9186 start.column = 0;
9187 end.column = buffer.line_len(MultiBufferRow(end.row));
9188 start..end
9189 })
9190 .collect::<Vec<_>>();
9191
9192 self.unfold_ranges(ranges, true, true, cx);
9193 }
9194
9195 pub fn unfold_at(&mut self, unfold_at: &UnfoldAt, cx: &mut ViewContext<Self>) {
9196 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
9197
9198 let intersection_range = Point::new(unfold_at.buffer_row.0, 0)
9199 ..Point::new(
9200 unfold_at.buffer_row.0,
9201 display_map.buffer_snapshot.line_len(unfold_at.buffer_row),
9202 );
9203
9204 let autoscroll = self
9205 .selections
9206 .all::<Point>(cx)
9207 .iter()
9208 .any(|selection| selection.range().overlaps(&intersection_range));
9209
9210 self.unfold_ranges(std::iter::once(intersection_range), true, autoscroll, cx)
9211 }
9212
9213 pub fn fold_selected_ranges(&mut self, _: &FoldSelectedRanges, cx: &mut ViewContext<Self>) {
9214 let selections = self.selections.all::<Point>(cx);
9215 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
9216 let line_mode = self.selections.line_mode;
9217 let ranges = selections.into_iter().map(|s| {
9218 if line_mode {
9219 let start = Point::new(s.start.row, 0);
9220 let end = Point::new(
9221 s.end.row,
9222 display_map
9223 .buffer_snapshot
9224 .line_len(MultiBufferRow(s.end.row)),
9225 );
9226 start..end
9227 } else {
9228 s.start..s.end
9229 }
9230 });
9231 self.fold_ranges(ranges, true, cx);
9232 }
9233
9234 pub fn fold_ranges<T: ToOffset + Clone>(
9235 &mut self,
9236 ranges: impl IntoIterator<Item = Range<T>>,
9237 auto_scroll: bool,
9238 cx: &mut ViewContext<Self>,
9239 ) {
9240 let mut fold_ranges = Vec::new();
9241 let mut buffers_affected = HashMap::default();
9242 let multi_buffer = self.buffer().read(cx);
9243 for range in ranges {
9244 if let Some((_, buffer, _)) = multi_buffer.excerpt_containing(range.start.clone(), cx) {
9245 buffers_affected.insert(buffer.read(cx).remote_id(), buffer);
9246 };
9247 fold_ranges.push(range);
9248 }
9249
9250 let mut ranges = fold_ranges.into_iter().peekable();
9251 if ranges.peek().is_some() {
9252 self.display_map.update(cx, |map, cx| map.fold(ranges, cx));
9253
9254 if auto_scroll {
9255 self.request_autoscroll(Autoscroll::fit(), cx);
9256 }
9257
9258 for buffer in buffers_affected.into_values() {
9259 self.sync_expanded_diff_hunks(buffer, cx);
9260 }
9261
9262 cx.notify();
9263
9264 if let Some(active_diagnostics) = self.active_diagnostics.take() {
9265 // Clear diagnostics block when folding a range that contains it.
9266 let snapshot = self.snapshot(cx);
9267 if snapshot.intersects_fold(active_diagnostics.primary_range.start) {
9268 drop(snapshot);
9269 self.active_diagnostics = Some(active_diagnostics);
9270 self.dismiss_diagnostics(cx);
9271 } else {
9272 self.active_diagnostics = Some(active_diagnostics);
9273 }
9274 }
9275
9276 self.scrollbar_marker_state.dirty = true;
9277 }
9278 }
9279
9280 pub fn unfold_ranges<T: ToOffset + Clone>(
9281 &mut self,
9282 ranges: impl IntoIterator<Item = Range<T>>,
9283 inclusive: bool,
9284 auto_scroll: bool,
9285 cx: &mut ViewContext<Self>,
9286 ) {
9287 let mut unfold_ranges = Vec::new();
9288 let mut buffers_affected = HashMap::default();
9289 let multi_buffer = self.buffer().read(cx);
9290 for range in ranges {
9291 if let Some((_, buffer, _)) = multi_buffer.excerpt_containing(range.start.clone(), cx) {
9292 buffers_affected.insert(buffer.read(cx).remote_id(), buffer);
9293 };
9294 unfold_ranges.push(range);
9295 }
9296
9297 let mut ranges = unfold_ranges.into_iter().peekable();
9298 if ranges.peek().is_some() {
9299 self.display_map
9300 .update(cx, |map, cx| map.unfold(ranges, inclusive, cx));
9301 if auto_scroll {
9302 self.request_autoscroll(Autoscroll::fit(), cx);
9303 }
9304
9305 for buffer in buffers_affected.into_values() {
9306 self.sync_expanded_diff_hunks(buffer, cx);
9307 }
9308
9309 cx.notify();
9310 self.scrollbar_marker_state.dirty = true;
9311 }
9312 }
9313
9314 pub fn set_gutter_hovered(&mut self, hovered: bool, cx: &mut ViewContext<Self>) {
9315 if hovered != self.gutter_hovered {
9316 self.gutter_hovered = hovered;
9317 cx.notify();
9318 }
9319 }
9320
9321 pub fn insert_blocks(
9322 &mut self,
9323 blocks: impl IntoIterator<Item = BlockProperties<Anchor>>,
9324 autoscroll: Option<Autoscroll>,
9325 cx: &mut ViewContext<Self>,
9326 ) -> Vec<BlockId> {
9327 let blocks = self
9328 .display_map
9329 .update(cx, |display_map, cx| display_map.insert_blocks(blocks, cx));
9330 if let Some(autoscroll) = autoscroll {
9331 self.request_autoscroll(autoscroll, cx);
9332 }
9333 blocks
9334 }
9335
9336 pub fn replace_blocks(
9337 &mut self,
9338 blocks: HashMap<BlockId, RenderBlock>,
9339 autoscroll: Option<Autoscroll>,
9340 cx: &mut ViewContext<Self>,
9341 ) {
9342 self.display_map
9343 .update(cx, |display_map, _| display_map.replace_blocks(blocks));
9344 if let Some(autoscroll) = autoscroll {
9345 self.request_autoscroll(autoscroll, cx);
9346 }
9347 }
9348
9349 pub fn remove_blocks(
9350 &mut self,
9351 block_ids: HashSet<BlockId>,
9352 autoscroll: Option<Autoscroll>,
9353 cx: &mut ViewContext<Self>,
9354 ) {
9355 self.display_map.update(cx, |display_map, cx| {
9356 display_map.remove_blocks(block_ids, cx)
9357 });
9358 if let Some(autoscroll) = autoscroll {
9359 self.request_autoscroll(autoscroll, cx);
9360 }
9361 }
9362
9363 pub fn longest_row(&self, cx: &mut AppContext) -> DisplayRow {
9364 self.display_map
9365 .update(cx, |map, cx| map.snapshot(cx))
9366 .longest_row()
9367 }
9368
9369 pub fn max_point(&self, cx: &mut AppContext) -> DisplayPoint {
9370 self.display_map
9371 .update(cx, |map, cx| map.snapshot(cx))
9372 .max_point()
9373 }
9374
9375 pub fn text(&self, cx: &AppContext) -> String {
9376 self.buffer.read(cx).read(cx).text()
9377 }
9378
9379 pub fn text_option(&self, cx: &AppContext) -> Option<String> {
9380 let text = self.text(cx);
9381 let text = text.trim();
9382
9383 if text.is_empty() {
9384 return None;
9385 }
9386
9387 Some(text.to_string())
9388 }
9389
9390 pub fn set_text(&mut self, text: impl Into<Arc<str>>, cx: &mut ViewContext<Self>) {
9391 self.transact(cx, |this, cx| {
9392 this.buffer
9393 .read(cx)
9394 .as_singleton()
9395 .expect("you can only call set_text on editors for singleton buffers")
9396 .update(cx, |buffer, cx| buffer.set_text(text, cx));
9397 });
9398 }
9399
9400 pub fn display_text(&self, cx: &mut AppContext) -> String {
9401 self.display_map
9402 .update(cx, |map, cx| map.snapshot(cx))
9403 .text()
9404 }
9405
9406 pub fn wrap_guides(&self, cx: &AppContext) -> SmallVec<[(usize, bool); 2]> {
9407 let mut wrap_guides = smallvec::smallvec![];
9408
9409 if self.show_wrap_guides == Some(false) {
9410 return wrap_guides;
9411 }
9412
9413 let settings = self.buffer.read(cx).settings_at(0, cx);
9414 if settings.show_wrap_guides {
9415 if let SoftWrap::Column(soft_wrap) = self.soft_wrap_mode(cx) {
9416 wrap_guides.push((soft_wrap as usize, true));
9417 }
9418 wrap_guides.extend(settings.wrap_guides.iter().map(|guide| (*guide, false)))
9419 }
9420
9421 wrap_guides
9422 }
9423
9424 pub fn soft_wrap_mode(&self, cx: &AppContext) -> SoftWrap {
9425 let settings = self.buffer.read(cx).settings_at(0, cx);
9426 let mode = self
9427 .soft_wrap_mode_override
9428 .unwrap_or_else(|| settings.soft_wrap);
9429 match mode {
9430 language_settings::SoftWrap::None => SoftWrap::None,
9431 language_settings::SoftWrap::PreferLine => SoftWrap::PreferLine,
9432 language_settings::SoftWrap::EditorWidth => SoftWrap::EditorWidth,
9433 language_settings::SoftWrap::PreferredLineLength => {
9434 SoftWrap::Column(settings.preferred_line_length)
9435 }
9436 }
9437 }
9438
9439 pub fn set_soft_wrap_mode(
9440 &mut self,
9441 mode: language_settings::SoftWrap,
9442 cx: &mut ViewContext<Self>,
9443 ) {
9444 self.soft_wrap_mode_override = Some(mode);
9445 cx.notify();
9446 }
9447
9448 pub fn set_style(&mut self, style: EditorStyle, cx: &mut ViewContext<Self>) {
9449 let rem_size = cx.rem_size();
9450 self.display_map.update(cx, |map, cx| {
9451 map.set_font(
9452 style.text.font(),
9453 style.text.font_size.to_pixels(rem_size),
9454 cx,
9455 )
9456 });
9457 self.style = Some(style);
9458 }
9459
9460 pub fn style(&self) -> Option<&EditorStyle> {
9461 self.style.as_ref()
9462 }
9463
9464 // Called by the element. This method is not designed to be called outside of the editor
9465 // element's layout code because it does not notify when rewrapping is computed synchronously.
9466 pub(crate) fn set_wrap_width(&self, width: Option<Pixels>, cx: &mut AppContext) -> bool {
9467 self.display_map
9468 .update(cx, |map, cx| map.set_wrap_width(width, cx))
9469 }
9470
9471 pub fn toggle_soft_wrap(&mut self, _: &ToggleSoftWrap, cx: &mut ViewContext<Self>) {
9472 if self.soft_wrap_mode_override.is_some() {
9473 self.soft_wrap_mode_override.take();
9474 } else {
9475 let soft_wrap = match self.soft_wrap_mode(cx) {
9476 SoftWrap::None | SoftWrap::PreferLine => language_settings::SoftWrap::EditorWidth,
9477 SoftWrap::EditorWidth | SoftWrap::Column(_) => {
9478 language_settings::SoftWrap::PreferLine
9479 }
9480 };
9481 self.soft_wrap_mode_override = Some(soft_wrap);
9482 }
9483 cx.notify();
9484 }
9485
9486 pub fn toggle_line_numbers(&mut self, _: &ToggleLineNumbers, cx: &mut ViewContext<Self>) {
9487 let mut editor_settings = EditorSettings::get_global(cx).clone();
9488 editor_settings.gutter.line_numbers = !editor_settings.gutter.line_numbers;
9489 EditorSettings::override_global(editor_settings, cx);
9490 }
9491
9492 pub fn set_show_gutter(&mut self, show_gutter: bool, cx: &mut ViewContext<Self>) {
9493 self.show_gutter = show_gutter;
9494 cx.notify();
9495 }
9496
9497 pub fn set_show_wrap_guides(&mut self, show_gutter: bool, cx: &mut ViewContext<Self>) {
9498 self.show_wrap_guides = Some(show_gutter);
9499 cx.notify();
9500 }
9501
9502 pub fn reveal_in_finder(&mut self, _: &RevealInFinder, cx: &mut ViewContext<Self>) {
9503 if let Some(buffer) = self.buffer().read(cx).as_singleton() {
9504 if let Some(file) = buffer.read(cx).file().and_then(|f| f.as_local()) {
9505 cx.reveal_path(&file.abs_path(cx));
9506 }
9507 }
9508 }
9509
9510 pub fn copy_path(&mut self, _: &CopyPath, cx: &mut ViewContext<Self>) {
9511 if let Some(buffer) = self.buffer().read(cx).as_singleton() {
9512 if let Some(file) = buffer.read(cx).file().and_then(|f| f.as_local()) {
9513 if let Some(path) = file.abs_path(cx).to_str() {
9514 cx.write_to_clipboard(ClipboardItem::new(path.to_string()));
9515 }
9516 }
9517 }
9518 }
9519
9520 pub fn copy_relative_path(&mut self, _: &CopyRelativePath, cx: &mut ViewContext<Self>) {
9521 if let Some(buffer) = self.buffer().read(cx).as_singleton() {
9522 if let Some(file) = buffer.read(cx).file().and_then(|f| f.as_local()) {
9523 if let Some(path) = file.path().to_str() {
9524 cx.write_to_clipboard(ClipboardItem::new(path.to_string()));
9525 }
9526 }
9527 }
9528 }
9529
9530 pub fn toggle_git_blame(&mut self, _: &ToggleGitBlame, cx: &mut ViewContext<Self>) {
9531 self.show_git_blame_gutter = !self.show_git_blame_gutter;
9532
9533 if self.show_git_blame_gutter && !self.has_blame_entries(cx) {
9534 self.start_git_blame(true, cx);
9535 }
9536
9537 cx.notify();
9538 }
9539
9540 pub fn toggle_git_blame_inline(
9541 &mut self,
9542 _: &ToggleGitBlameInline,
9543 cx: &mut ViewContext<Self>,
9544 ) {
9545 self.toggle_git_blame_inline_internal(true, cx);
9546 cx.notify();
9547 }
9548
9549 pub fn git_blame_inline_enabled(&self) -> bool {
9550 self.git_blame_inline_enabled
9551 }
9552
9553 fn start_git_blame(&mut self, user_triggered: bool, cx: &mut ViewContext<Self>) {
9554 if let Some(project) = self.project.as_ref() {
9555 let Some(buffer) = self.buffer().read(cx).as_singleton() else {
9556 return;
9557 };
9558
9559 if buffer.read(cx).file().is_none() {
9560 return;
9561 }
9562
9563 let focused = self.focus_handle(cx).contains_focused(cx);
9564
9565 let project = project.clone();
9566 let blame =
9567 cx.new_model(|cx| GitBlame::new(buffer, project, user_triggered, focused, cx));
9568 self.blame_subscription = Some(cx.observe(&blame, |_, _, cx| cx.notify()));
9569 self.blame = Some(blame);
9570 }
9571 }
9572
9573 fn toggle_git_blame_inline_internal(
9574 &mut self,
9575 user_triggered: bool,
9576 cx: &mut ViewContext<Self>,
9577 ) {
9578 if self.git_blame_inline_enabled {
9579 self.git_blame_inline_enabled = false;
9580 self.show_git_blame_inline = false;
9581 self.show_git_blame_inline_delay_task.take();
9582 } else {
9583 self.git_blame_inline_enabled = true;
9584 self.start_git_blame_inline(user_triggered, cx);
9585 }
9586
9587 cx.notify();
9588 }
9589
9590 fn start_git_blame_inline(&mut self, user_triggered: bool, cx: &mut ViewContext<Self>) {
9591 self.start_git_blame(user_triggered, cx);
9592
9593 if ProjectSettings::get_global(cx)
9594 .git
9595 .inline_blame_delay()
9596 .is_some()
9597 {
9598 self.start_inline_blame_timer(cx);
9599 } else {
9600 self.show_git_blame_inline = true
9601 }
9602 }
9603
9604 pub fn blame(&self) -> Option<&Model<GitBlame>> {
9605 self.blame.as_ref()
9606 }
9607
9608 pub fn render_git_blame_gutter(&mut self, cx: &mut WindowContext) -> bool {
9609 self.show_git_blame_gutter && self.has_blame_entries(cx)
9610 }
9611
9612 pub fn render_git_blame_inline(&mut self, cx: &mut WindowContext) -> bool {
9613 self.show_git_blame_inline
9614 && self.focus_handle.is_focused(cx)
9615 && !self.newest_selection_head_on_empty_line(cx)
9616 && self.has_blame_entries(cx)
9617 }
9618
9619 fn has_blame_entries(&self, cx: &mut WindowContext) -> bool {
9620 self.blame()
9621 .map_or(false, |blame| blame.read(cx).has_generated_entries())
9622 }
9623
9624 fn newest_selection_head_on_empty_line(&mut self, cx: &mut WindowContext) -> bool {
9625 let cursor_anchor = self.selections.newest_anchor().head();
9626
9627 let snapshot = self.buffer.read(cx).snapshot(cx);
9628 let buffer_row = MultiBufferRow(cursor_anchor.to_point(&snapshot).row);
9629
9630 snapshot.line_len(buffer_row) == 0
9631 }
9632
9633 fn get_permalink_to_line(&mut self, cx: &mut ViewContext<Self>) -> Result<url::Url> {
9634 let (path, repo) = maybe!({
9635 let project_handle = self.project.as_ref()?.clone();
9636 let project = project_handle.read(cx);
9637 let buffer = self.buffer().read(cx).as_singleton()?;
9638 let path = buffer
9639 .read(cx)
9640 .file()?
9641 .as_local()?
9642 .path()
9643 .to_str()?
9644 .to_string();
9645 let repo = project.get_repo(&buffer.read(cx).project_path(cx)?, cx)?;
9646 Some((path, repo))
9647 })
9648 .ok_or_else(|| anyhow!("unable to open git repository"))?;
9649
9650 const REMOTE_NAME: &str = "origin";
9651 let origin_url = repo
9652 .lock()
9653 .remote_url(REMOTE_NAME)
9654 .ok_or_else(|| anyhow!("remote \"{REMOTE_NAME}\" not found"))?;
9655 let sha = repo
9656 .lock()
9657 .head_sha()
9658 .ok_or_else(|| anyhow!("failed to read HEAD SHA"))?;
9659 let selections = self.selections.all::<Point>(cx);
9660 let selection = selections.iter().peekable().next();
9661
9662 let (provider, remote) =
9663 parse_git_remote_url(GitHostingProviderRegistry::default_global(cx), &origin_url)
9664 .ok_or_else(|| anyhow!("failed to parse Git remote URL"))?;
9665
9666 Ok(provider.build_permalink(
9667 remote,
9668 BuildPermalinkParams {
9669 sha: &sha,
9670 path: &path,
9671 selection: selection.map(|selection| {
9672 let range = selection.range();
9673 let start = range.start.row;
9674 let end = range.end.row;
9675 start..end
9676 }),
9677 },
9678 ))
9679 }
9680
9681 pub fn copy_permalink_to_line(&mut self, _: &CopyPermalinkToLine, cx: &mut ViewContext<Self>) {
9682 let permalink = self.get_permalink_to_line(cx);
9683
9684 match permalink {
9685 Ok(permalink) => {
9686 cx.write_to_clipboard(ClipboardItem::new(permalink.to_string()));
9687 }
9688 Err(err) => {
9689 let message = format!("Failed to copy permalink: {err}");
9690
9691 Err::<(), anyhow::Error>(err).log_err();
9692
9693 if let Some(workspace) = self.workspace() {
9694 workspace.update(cx, |workspace, cx| {
9695 struct CopyPermalinkToLine;
9696
9697 workspace.show_toast(
9698 Toast::new(NotificationId::unique::<CopyPermalinkToLine>(), message),
9699 cx,
9700 )
9701 })
9702 }
9703 }
9704 }
9705 }
9706
9707 pub fn open_permalink_to_line(&mut self, _: &OpenPermalinkToLine, cx: &mut ViewContext<Self>) {
9708 let permalink = self.get_permalink_to_line(cx);
9709
9710 match permalink {
9711 Ok(permalink) => {
9712 cx.open_url(permalink.as_ref());
9713 }
9714 Err(err) => {
9715 let message = format!("Failed to open permalink: {err}");
9716
9717 Err::<(), anyhow::Error>(err).log_err();
9718
9719 if let Some(workspace) = self.workspace() {
9720 workspace.update(cx, |workspace, cx| {
9721 struct OpenPermalinkToLine;
9722
9723 workspace.show_toast(
9724 Toast::new(NotificationId::unique::<OpenPermalinkToLine>(), message),
9725 cx,
9726 )
9727 })
9728 }
9729 }
9730 }
9731 }
9732
9733 /// Adds or removes (on `None` color) a highlight for the rows corresponding to the anchor range given.
9734 /// On matching anchor range, replaces the old highlight; does not clear the other existing highlights.
9735 /// If multiple anchor ranges will produce highlights for the same row, the last range added will be used.
9736 pub fn highlight_rows<T: 'static>(
9737 &mut self,
9738 rows: RangeInclusive<Anchor>,
9739 color: Option<Hsla>,
9740 cx: &mut ViewContext<Self>,
9741 ) {
9742 let multi_buffer_snapshot = self.buffer().read(cx).snapshot(cx);
9743 match self.highlighted_rows.entry(TypeId::of::<T>()) {
9744 hash_map::Entry::Occupied(o) => {
9745 let row_highlights = o.into_mut();
9746 let existing_highlight_index =
9747 row_highlights.binary_search_by(|(_, highlight_range, _)| {
9748 highlight_range
9749 .start()
9750 .cmp(&rows.start(), &multi_buffer_snapshot)
9751 .then(
9752 highlight_range
9753 .end()
9754 .cmp(&rows.end(), &multi_buffer_snapshot),
9755 )
9756 });
9757 match color {
9758 Some(color) => {
9759 let insert_index = match existing_highlight_index {
9760 Ok(i) => i,
9761 Err(i) => i,
9762 };
9763 row_highlights.insert(
9764 insert_index,
9765 (post_inc(&mut self.highlight_order), rows, Some(color)),
9766 );
9767 }
9768 None => match existing_highlight_index {
9769 Ok(i) => {
9770 row_highlights.remove(i);
9771 }
9772 Err(i) => {
9773 row_highlights
9774 .insert(i, (post_inc(&mut self.highlight_order), rows, None));
9775 }
9776 },
9777 }
9778 }
9779 hash_map::Entry::Vacant(v) => {
9780 v.insert(vec![(post_inc(&mut self.highlight_order), rows, color)]);
9781 }
9782 }
9783 }
9784
9785 /// Clear all anchor ranges for a certain highlight context type, so no corresponding rows will be highlighted.
9786 pub fn clear_row_highlights<T: 'static>(&mut self) {
9787 self.highlighted_rows.remove(&TypeId::of::<T>());
9788 }
9789
9790 /// For a highlight given context type, gets all anchor ranges that will be used for row highlighting.
9791 pub fn highlighted_rows<T: 'static>(
9792 &self,
9793 ) -> Option<impl Iterator<Item = (&RangeInclusive<Anchor>, Option<&Hsla>)>> {
9794 Some(
9795 self.highlighted_rows
9796 .get(&TypeId::of::<T>())?
9797 .iter()
9798 .map(|(_, range, color)| (range, color.as_ref())),
9799 )
9800 }
9801
9802 /// Merges all anchor ranges for all context types ever set, picking the last highlight added in case of a row conflict.
9803 /// Rerturns a map of display rows that are highlighted and their corresponding highlight color.
9804 /// Allows to ignore certain kinds of highlights.
9805 pub fn highlighted_display_rows(
9806 &mut self,
9807 exclude_highlights: HashSet<TypeId>,
9808 cx: &mut WindowContext,
9809 ) -> BTreeMap<DisplayRow, Hsla> {
9810 let snapshot = self.snapshot(cx);
9811 let mut used_highlight_orders = HashMap::default();
9812 self.highlighted_rows
9813 .iter()
9814 .filter(|(type_id, _)| !exclude_highlights.contains(type_id))
9815 .flat_map(|(_, highlighted_rows)| highlighted_rows.iter())
9816 .fold(
9817 BTreeMap::<DisplayRow, Hsla>::new(),
9818 |mut unique_rows, (highlight_order, anchor_range, hsla)| {
9819 let start_row = anchor_range.start().to_display_point(&snapshot).row();
9820 let end_row = anchor_range.end().to_display_point(&snapshot).row();
9821 for row in start_row.0..=end_row.0 {
9822 let used_index =
9823 used_highlight_orders.entry(row).or_insert(*highlight_order);
9824 if highlight_order >= used_index {
9825 *used_index = *highlight_order;
9826 match hsla {
9827 Some(hsla) => {
9828 unique_rows.insert(DisplayRow(row), *hsla);
9829 }
9830 None => {
9831 unique_rows.remove(&DisplayRow(row));
9832 }
9833 }
9834 }
9835 }
9836 unique_rows
9837 },
9838 )
9839 }
9840
9841 pub fn set_search_within_ranges(
9842 &mut self,
9843 ranges: &[Range<Anchor>],
9844 cx: &mut ViewContext<Self>,
9845 ) {
9846 self.highlight_background::<SearchWithinRange>(
9847 ranges,
9848 |colors| colors.editor_document_highlight_read_background,
9849 cx,
9850 )
9851 }
9852
9853 pub fn highlight_background<T: 'static>(
9854 &mut self,
9855 ranges: &[Range<Anchor>],
9856 color_fetcher: fn(&ThemeColors) -> Hsla,
9857 cx: &mut ViewContext<Self>,
9858 ) {
9859 let snapshot = self.snapshot(cx);
9860 // this is to try and catch a panic sooner
9861 for range in ranges {
9862 snapshot
9863 .buffer_snapshot
9864 .summary_for_anchor::<usize>(&range.start);
9865 snapshot
9866 .buffer_snapshot
9867 .summary_for_anchor::<usize>(&range.end);
9868 }
9869
9870 self.background_highlights
9871 .insert(TypeId::of::<T>(), (color_fetcher, Arc::from(ranges)));
9872 self.scrollbar_marker_state.dirty = true;
9873 cx.notify();
9874 }
9875
9876 pub fn clear_background_highlights<T: 'static>(
9877 &mut self,
9878 cx: &mut ViewContext<Self>,
9879 ) -> Option<BackgroundHighlight> {
9880 let text_highlights = self.background_highlights.remove(&TypeId::of::<T>())?;
9881 if !text_highlights.1.is_empty() {
9882 self.scrollbar_marker_state.dirty = true;
9883 cx.notify();
9884 }
9885 Some(text_highlights)
9886 }
9887
9888 #[cfg(feature = "test-support")]
9889 pub fn all_text_background_highlights(
9890 &mut self,
9891 cx: &mut ViewContext<Self>,
9892 ) -> Vec<(Range<DisplayPoint>, Hsla)> {
9893 let snapshot = self.snapshot(cx);
9894 let buffer = &snapshot.buffer_snapshot;
9895 let start = buffer.anchor_before(0);
9896 let end = buffer.anchor_after(buffer.len());
9897 let theme = cx.theme().colors();
9898 self.background_highlights_in_range(start..end, &snapshot, theme)
9899 }
9900
9901 fn document_highlights_for_position<'a>(
9902 &'a self,
9903 position: Anchor,
9904 buffer: &'a MultiBufferSnapshot,
9905 ) -> impl 'a + Iterator<Item = &Range<Anchor>> {
9906 let read_highlights = self
9907 .background_highlights
9908 .get(&TypeId::of::<DocumentHighlightRead>())
9909 .map(|h| &h.1);
9910 let write_highlights = self
9911 .background_highlights
9912 .get(&TypeId::of::<DocumentHighlightWrite>())
9913 .map(|h| &h.1);
9914 let left_position = position.bias_left(buffer);
9915 let right_position = position.bias_right(buffer);
9916 read_highlights
9917 .into_iter()
9918 .chain(write_highlights)
9919 .flat_map(move |ranges| {
9920 let start_ix = match ranges.binary_search_by(|probe| {
9921 let cmp = probe.end.cmp(&left_position, buffer);
9922 if cmp.is_ge() {
9923 Ordering::Greater
9924 } else {
9925 Ordering::Less
9926 }
9927 }) {
9928 Ok(i) | Err(i) => i,
9929 };
9930
9931 ranges[start_ix..]
9932 .iter()
9933 .take_while(move |range| range.start.cmp(&right_position, buffer).is_le())
9934 })
9935 }
9936
9937 pub fn has_background_highlights<T: 'static>(&self) -> bool {
9938 self.background_highlights
9939 .get(&TypeId::of::<T>())
9940 .map_or(false, |(_, highlights)| !highlights.is_empty())
9941 }
9942
9943 pub fn background_highlights_in_range(
9944 &self,
9945 search_range: Range<Anchor>,
9946 display_snapshot: &DisplaySnapshot,
9947 theme: &ThemeColors,
9948 ) -> Vec<(Range<DisplayPoint>, Hsla)> {
9949 let mut results = Vec::new();
9950 for (color_fetcher, ranges) in self.background_highlights.values() {
9951 let color = color_fetcher(theme);
9952 let start_ix = match ranges.binary_search_by(|probe| {
9953 let cmp = probe
9954 .end
9955 .cmp(&search_range.start, &display_snapshot.buffer_snapshot);
9956 if cmp.is_gt() {
9957 Ordering::Greater
9958 } else {
9959 Ordering::Less
9960 }
9961 }) {
9962 Ok(i) | Err(i) => i,
9963 };
9964 for range in &ranges[start_ix..] {
9965 if range
9966 .start
9967 .cmp(&search_range.end, &display_snapshot.buffer_snapshot)
9968 .is_ge()
9969 {
9970 break;
9971 }
9972
9973 let start = range.start.to_display_point(&display_snapshot);
9974 let end = range.end.to_display_point(&display_snapshot);
9975 results.push((start..end, color))
9976 }
9977 }
9978 results
9979 }
9980
9981 pub fn background_highlight_row_ranges<T: 'static>(
9982 &self,
9983 search_range: Range<Anchor>,
9984 display_snapshot: &DisplaySnapshot,
9985 count: usize,
9986 ) -> Vec<RangeInclusive<DisplayPoint>> {
9987 let mut results = Vec::new();
9988 let Some((_, ranges)) = self.background_highlights.get(&TypeId::of::<T>()) else {
9989 return vec![];
9990 };
9991
9992 let start_ix = match ranges.binary_search_by(|probe| {
9993 let cmp = probe
9994 .end
9995 .cmp(&search_range.start, &display_snapshot.buffer_snapshot);
9996 if cmp.is_gt() {
9997 Ordering::Greater
9998 } else {
9999 Ordering::Less
10000 }
10001 }) {
10002 Ok(i) | Err(i) => i,
10003 };
10004 let mut push_region = |start: Option<Point>, end: Option<Point>| {
10005 if let (Some(start_display), Some(end_display)) = (start, end) {
10006 results.push(
10007 start_display.to_display_point(display_snapshot)
10008 ..=end_display.to_display_point(display_snapshot),
10009 );
10010 }
10011 };
10012 let mut start_row: Option<Point> = None;
10013 let mut end_row: Option<Point> = None;
10014 if ranges.len() > count {
10015 return Vec::new();
10016 }
10017 for range in &ranges[start_ix..] {
10018 if range
10019 .start
10020 .cmp(&search_range.end, &display_snapshot.buffer_snapshot)
10021 .is_ge()
10022 {
10023 break;
10024 }
10025 let end = range.end.to_point(&display_snapshot.buffer_snapshot);
10026 if let Some(current_row) = &end_row {
10027 if end.row == current_row.row {
10028 continue;
10029 }
10030 }
10031 let start = range.start.to_point(&display_snapshot.buffer_snapshot);
10032 if start_row.is_none() {
10033 assert_eq!(end_row, None);
10034 start_row = Some(start);
10035 end_row = Some(end);
10036 continue;
10037 }
10038 if let Some(current_end) = end_row.as_mut() {
10039 if start.row > current_end.row + 1 {
10040 push_region(start_row, end_row);
10041 start_row = Some(start);
10042 end_row = Some(end);
10043 } else {
10044 // Merge two hunks.
10045 *current_end = end;
10046 }
10047 } else {
10048 unreachable!();
10049 }
10050 }
10051 // We might still have a hunk that was not rendered (if there was a search hit on the last line)
10052 push_region(start_row, end_row);
10053 results
10054 }
10055
10056 /// Get the text ranges corresponding to the redaction query
10057 pub fn redacted_ranges(
10058 &self,
10059 search_range: Range<Anchor>,
10060 display_snapshot: &DisplaySnapshot,
10061 cx: &WindowContext,
10062 ) -> Vec<Range<DisplayPoint>> {
10063 display_snapshot
10064 .buffer_snapshot
10065 .redacted_ranges(search_range, |file| {
10066 if let Some(file) = file {
10067 file.is_private()
10068 && EditorSettings::get(Some(file.as_ref().into()), cx).redact_private_values
10069 } else {
10070 false
10071 }
10072 })
10073 .map(|range| {
10074 range.start.to_display_point(display_snapshot)
10075 ..range.end.to_display_point(display_snapshot)
10076 })
10077 .collect()
10078 }
10079
10080 pub fn highlight_text<T: 'static>(
10081 &mut self,
10082 ranges: Vec<Range<Anchor>>,
10083 style: HighlightStyle,
10084 cx: &mut ViewContext<Self>,
10085 ) {
10086 self.display_map.update(cx, |map, _| {
10087 map.highlight_text(TypeId::of::<T>(), ranges, style)
10088 });
10089 cx.notify();
10090 }
10091
10092 pub(crate) fn highlight_inlays<T: 'static>(
10093 &mut self,
10094 highlights: Vec<InlayHighlight>,
10095 style: HighlightStyle,
10096 cx: &mut ViewContext<Self>,
10097 ) {
10098 self.display_map.update(cx, |map, _| {
10099 map.highlight_inlays(TypeId::of::<T>(), highlights, style)
10100 });
10101 cx.notify();
10102 }
10103
10104 pub fn text_highlights<'a, T: 'static>(
10105 &'a self,
10106 cx: &'a AppContext,
10107 ) -> Option<(HighlightStyle, &'a [Range<Anchor>])> {
10108 self.display_map.read(cx).text_highlights(TypeId::of::<T>())
10109 }
10110
10111 pub fn clear_highlights<T: 'static>(&mut self, cx: &mut ViewContext<Self>) {
10112 let cleared = self
10113 .display_map
10114 .update(cx, |map, _| map.clear_highlights(TypeId::of::<T>()));
10115 if cleared {
10116 cx.notify();
10117 }
10118 }
10119
10120 pub fn show_local_cursors(&self, cx: &WindowContext) -> bool {
10121 (self.read_only(cx) || self.blink_manager.read(cx).visible())
10122 && self.focus_handle.is_focused(cx)
10123 }
10124
10125 fn on_buffer_changed(&mut self, _: Model<MultiBuffer>, cx: &mut ViewContext<Self>) {
10126 cx.notify();
10127 }
10128
10129 fn on_buffer_event(
10130 &mut self,
10131 multibuffer: Model<MultiBuffer>,
10132 event: &multi_buffer::Event,
10133 cx: &mut ViewContext<Self>,
10134 ) {
10135 match event {
10136 multi_buffer::Event::Edited {
10137 singleton_buffer_edited,
10138 } => {
10139 self.scrollbar_marker_state.dirty = true;
10140 self.refresh_active_diagnostics(cx);
10141 self.refresh_code_actions(cx);
10142 if self.has_active_inline_completion(cx) {
10143 self.update_visible_inline_completion(cx);
10144 }
10145 cx.emit(EditorEvent::BufferEdited);
10146 cx.emit(SearchEvent::MatchesInvalidated);
10147
10148 if *singleton_buffer_edited {
10149 if let Some(project) = &self.project {
10150 let project = project.read(cx);
10151 let languages_affected = multibuffer
10152 .read(cx)
10153 .all_buffers()
10154 .into_iter()
10155 .filter_map(|buffer| {
10156 let buffer = buffer.read(cx);
10157 let language = buffer.language()?;
10158 if project.is_local()
10159 && project.language_servers_for_buffer(buffer, cx).count() == 0
10160 {
10161 None
10162 } else {
10163 Some(language)
10164 }
10165 })
10166 .cloned()
10167 .collect::<HashSet<_>>();
10168 if !languages_affected.is_empty() {
10169 self.refresh_inlay_hints(
10170 InlayHintRefreshReason::BufferEdited(languages_affected),
10171 cx,
10172 );
10173 }
10174 }
10175 }
10176
10177 let Some(project) = &self.project else { return };
10178 let telemetry = project.read(cx).client().telemetry().clone();
10179 telemetry.log_edit_event("editor");
10180 }
10181 multi_buffer::Event::ExcerptsAdded {
10182 buffer,
10183 predecessor,
10184 excerpts,
10185 } => {
10186 self.tasks_update_task = Some(self.refresh_runnables(cx));
10187 cx.emit(EditorEvent::ExcerptsAdded {
10188 buffer: buffer.clone(),
10189 predecessor: *predecessor,
10190 excerpts: excerpts.clone(),
10191 });
10192 self.refresh_inlay_hints(InlayHintRefreshReason::NewLinesShown, cx);
10193 }
10194 multi_buffer::Event::ExcerptsRemoved { ids } => {
10195 self.refresh_inlay_hints(InlayHintRefreshReason::ExcerptsRemoved(ids.clone()), cx);
10196 cx.emit(EditorEvent::ExcerptsRemoved { ids: ids.clone() })
10197 }
10198 multi_buffer::Event::Reparsed => {
10199 self.tasks_update_task = Some(self.refresh_runnables(cx));
10200
10201 cx.emit(EditorEvent::Reparsed);
10202 }
10203 multi_buffer::Event::LanguageChanged => {
10204 cx.emit(EditorEvent::Reparsed);
10205 cx.notify();
10206 }
10207 multi_buffer::Event::DirtyChanged => cx.emit(EditorEvent::DirtyChanged),
10208 multi_buffer::Event::Saved => cx.emit(EditorEvent::Saved),
10209 multi_buffer::Event::FileHandleChanged | multi_buffer::Event::Reloaded => {
10210 cx.emit(EditorEvent::TitleChanged)
10211 }
10212 multi_buffer::Event::DiffBaseChanged => {
10213 self.scrollbar_marker_state.dirty = true;
10214 cx.emit(EditorEvent::DiffBaseChanged);
10215 cx.notify();
10216 }
10217 multi_buffer::Event::DiffUpdated { buffer } => {
10218 self.sync_expanded_diff_hunks(buffer.clone(), cx);
10219 cx.notify();
10220 }
10221 multi_buffer::Event::Closed => cx.emit(EditorEvent::Closed),
10222 multi_buffer::Event::DiagnosticsUpdated => {
10223 self.refresh_active_diagnostics(cx);
10224 self.scrollbar_marker_state.dirty = true;
10225 cx.notify();
10226 }
10227 _ => {}
10228 };
10229 }
10230
10231 fn on_display_map_changed(&mut self, _: Model<DisplayMap>, cx: &mut ViewContext<Self>) {
10232 cx.notify();
10233 }
10234
10235 fn settings_changed(&mut self, cx: &mut ViewContext<Self>) {
10236 self.refresh_inline_completion(true, cx);
10237 self.refresh_inlay_hints(
10238 InlayHintRefreshReason::SettingsChange(inlay_hint_settings(
10239 self.selections.newest_anchor().head(),
10240 &self.buffer.read(cx).snapshot(cx),
10241 cx,
10242 )),
10243 cx,
10244 );
10245 let editor_settings = EditorSettings::get_global(cx);
10246 self.scroll_manager.vertical_scroll_margin = editor_settings.vertical_scroll_margin;
10247 self.show_breadcrumbs = editor_settings.toolbar.breadcrumbs;
10248
10249 if self.mode == EditorMode::Full {
10250 let inline_blame_enabled = ProjectSettings::get_global(cx).git.inline_blame_enabled();
10251 if self.git_blame_inline_enabled != inline_blame_enabled {
10252 self.toggle_git_blame_inline_internal(false, cx);
10253 }
10254 }
10255
10256 cx.notify();
10257 }
10258
10259 pub fn set_searchable(&mut self, searchable: bool) {
10260 self.searchable = searchable;
10261 }
10262
10263 pub fn searchable(&self) -> bool {
10264 self.searchable
10265 }
10266
10267 fn open_excerpts_in_split(&mut self, _: &OpenExcerptsSplit, cx: &mut ViewContext<Self>) {
10268 self.open_excerpts_common(true, cx)
10269 }
10270
10271 fn open_excerpts(&mut self, _: &OpenExcerpts, cx: &mut ViewContext<Self>) {
10272 self.open_excerpts_common(false, cx)
10273 }
10274
10275 fn open_excerpts_common(&mut self, split: bool, cx: &mut ViewContext<Self>) {
10276 let buffer = self.buffer.read(cx);
10277 if buffer.is_singleton() {
10278 cx.propagate();
10279 return;
10280 }
10281
10282 let Some(workspace) = self.workspace() else {
10283 cx.propagate();
10284 return;
10285 };
10286
10287 let mut new_selections_by_buffer = HashMap::default();
10288 for selection in self.selections.all::<usize>(cx) {
10289 for (buffer, mut range, _) in
10290 buffer.range_to_buffer_ranges(selection.start..selection.end, cx)
10291 {
10292 if selection.reversed {
10293 mem::swap(&mut range.start, &mut range.end);
10294 }
10295 new_selections_by_buffer
10296 .entry(buffer)
10297 .or_insert(Vec::new())
10298 .push(range)
10299 }
10300 }
10301
10302 // We defer the pane interaction because we ourselves are a workspace item
10303 // and activating a new item causes the pane to call a method on us reentrantly,
10304 // which panics if we're on the stack.
10305 cx.window_context().defer(move |cx| {
10306 workspace.update(cx, |workspace, cx| {
10307 let pane = if split {
10308 workspace.adjacent_pane(cx)
10309 } else {
10310 workspace.active_pane().clone()
10311 };
10312
10313 for (buffer, ranges) in new_selections_by_buffer {
10314 let editor = workspace.open_project_item::<Self>(pane.clone(), buffer, cx);
10315 editor.update(cx, |editor, cx| {
10316 editor.change_selections(Some(Autoscroll::newest()), cx, |s| {
10317 s.select_ranges(ranges);
10318 });
10319 });
10320 }
10321 })
10322 });
10323 }
10324
10325 fn jump(
10326 &mut self,
10327 path: ProjectPath,
10328 position: Point,
10329 anchor: language::Anchor,
10330 offset_from_top: u32,
10331 cx: &mut ViewContext<Self>,
10332 ) {
10333 let workspace = self.workspace();
10334 cx.spawn(|_, mut cx| async move {
10335 let workspace = workspace.ok_or_else(|| anyhow!("cannot jump without workspace"))?;
10336 let editor = workspace.update(&mut cx, |workspace, cx| {
10337 // Reset the preview item id before opening the new item
10338 workspace.active_pane().update(cx, |pane, cx| {
10339 pane.set_preview_item_id(None, cx);
10340 });
10341 workspace.open_path_preview(path, None, true, true, cx)
10342 })?;
10343 let editor = editor
10344 .await?
10345 .downcast::<Editor>()
10346 .ok_or_else(|| anyhow!("opened item was not an editor"))?
10347 .downgrade();
10348 editor.update(&mut cx, |editor, cx| {
10349 let buffer = editor
10350 .buffer()
10351 .read(cx)
10352 .as_singleton()
10353 .ok_or_else(|| anyhow!("cannot jump in a multi-buffer"))?;
10354 let buffer = buffer.read(cx);
10355 let cursor = if buffer.can_resolve(&anchor) {
10356 language::ToPoint::to_point(&anchor, buffer)
10357 } else {
10358 buffer.clip_point(position, Bias::Left)
10359 };
10360
10361 let nav_history = editor.nav_history.take();
10362 editor.change_selections(
10363 Some(Autoscroll::top_relative(offset_from_top as usize)),
10364 cx,
10365 |s| {
10366 s.select_ranges([cursor..cursor]);
10367 },
10368 );
10369 editor.nav_history = nav_history;
10370
10371 anyhow::Ok(())
10372 })??;
10373
10374 anyhow::Ok(())
10375 })
10376 .detach_and_log_err(cx);
10377 }
10378
10379 fn marked_text_ranges(&self, cx: &AppContext) -> Option<Vec<Range<OffsetUtf16>>> {
10380 let snapshot = self.buffer.read(cx).read(cx);
10381 let (_, ranges) = self.text_highlights::<InputComposition>(cx)?;
10382 Some(
10383 ranges
10384 .iter()
10385 .map(move |range| {
10386 range.start.to_offset_utf16(&snapshot)..range.end.to_offset_utf16(&snapshot)
10387 })
10388 .collect(),
10389 )
10390 }
10391
10392 fn selection_replacement_ranges(
10393 &self,
10394 range: Range<OffsetUtf16>,
10395 cx: &AppContext,
10396 ) -> Vec<Range<OffsetUtf16>> {
10397 let selections = self.selections.all::<OffsetUtf16>(cx);
10398 let newest_selection = selections
10399 .iter()
10400 .max_by_key(|selection| selection.id)
10401 .unwrap();
10402 let start_delta = range.start.0 as isize - newest_selection.start.0 as isize;
10403 let end_delta = range.end.0 as isize - newest_selection.end.0 as isize;
10404 let snapshot = self.buffer.read(cx).read(cx);
10405 selections
10406 .into_iter()
10407 .map(|mut selection| {
10408 selection.start.0 =
10409 (selection.start.0 as isize).saturating_add(start_delta) as usize;
10410 selection.end.0 = (selection.end.0 as isize).saturating_add(end_delta) as usize;
10411 snapshot.clip_offset_utf16(selection.start, Bias::Left)
10412 ..snapshot.clip_offset_utf16(selection.end, Bias::Right)
10413 })
10414 .collect()
10415 }
10416
10417 fn report_editor_event(
10418 &self,
10419 operation: &'static str,
10420 file_extension: Option<String>,
10421 cx: &AppContext,
10422 ) {
10423 if cfg!(any(test, feature = "test-support")) {
10424 return;
10425 }
10426
10427 let Some(project) = &self.project else { return };
10428
10429 // If None, we are in a file without an extension
10430 let file = self
10431 .buffer
10432 .read(cx)
10433 .as_singleton()
10434 .and_then(|b| b.read(cx).file());
10435 let file_extension = file_extension.or(file
10436 .as_ref()
10437 .and_then(|file| Path::new(file.file_name(cx)).extension())
10438 .and_then(|e| e.to_str())
10439 .map(|a| a.to_string()));
10440
10441 let vim_mode = cx
10442 .global::<SettingsStore>()
10443 .raw_user_settings()
10444 .get("vim_mode")
10445 == Some(&serde_json::Value::Bool(true));
10446
10447 let copilot_enabled = all_language_settings(file, cx).inline_completions.provider
10448 == language::language_settings::InlineCompletionProvider::Copilot;
10449 let copilot_enabled_for_language = self
10450 .buffer
10451 .read(cx)
10452 .settings_at(0, cx)
10453 .show_inline_completions;
10454
10455 let telemetry = project.read(cx).client().telemetry().clone();
10456 telemetry.report_editor_event(
10457 file_extension,
10458 vim_mode,
10459 operation,
10460 copilot_enabled,
10461 copilot_enabled_for_language,
10462 )
10463 }
10464
10465 /// Copy the highlighted chunks to the clipboard as JSON. The format is an array of lines,
10466 /// with each line being an array of {text, highlight} objects.
10467 fn copy_highlight_json(&mut self, _: &CopyHighlightJson, cx: &mut ViewContext<Self>) {
10468 let Some(buffer) = self.buffer.read(cx).as_singleton() else {
10469 return;
10470 };
10471
10472 #[derive(Serialize)]
10473 struct Chunk<'a> {
10474 text: String,
10475 highlight: Option<&'a str>,
10476 }
10477
10478 let snapshot = buffer.read(cx).snapshot();
10479 let range = self
10480 .selected_text_range(cx)
10481 .and_then(|selected_range| {
10482 if selected_range.is_empty() {
10483 None
10484 } else {
10485 Some(selected_range)
10486 }
10487 })
10488 .unwrap_or_else(|| 0..snapshot.len());
10489
10490 let chunks = snapshot.chunks(range, true);
10491 let mut lines = Vec::new();
10492 let mut line: VecDeque<Chunk> = VecDeque::new();
10493
10494 let Some(style) = self.style.as_ref() else {
10495 return;
10496 };
10497
10498 for chunk in chunks {
10499 let highlight = chunk
10500 .syntax_highlight_id
10501 .and_then(|id| id.name(&style.syntax));
10502 let mut chunk_lines = chunk.text.split('\n').peekable();
10503 while let Some(text) = chunk_lines.next() {
10504 let mut merged_with_last_token = false;
10505 if let Some(last_token) = line.back_mut() {
10506 if last_token.highlight == highlight {
10507 last_token.text.push_str(text);
10508 merged_with_last_token = true;
10509 }
10510 }
10511
10512 if !merged_with_last_token {
10513 line.push_back(Chunk {
10514 text: text.into(),
10515 highlight,
10516 });
10517 }
10518
10519 if chunk_lines.peek().is_some() {
10520 if line.len() > 1 && line.front().unwrap().text.is_empty() {
10521 line.pop_front();
10522 }
10523 if line.len() > 1 && line.back().unwrap().text.is_empty() {
10524 line.pop_back();
10525 }
10526
10527 lines.push(mem::take(&mut line));
10528 }
10529 }
10530 }
10531
10532 let Some(lines) = serde_json::to_string_pretty(&lines).log_err() else {
10533 return;
10534 };
10535 cx.write_to_clipboard(ClipboardItem::new(lines));
10536 }
10537
10538 pub fn inlay_hint_cache(&self) -> &InlayHintCache {
10539 &self.inlay_hint_cache
10540 }
10541
10542 pub fn replay_insert_event(
10543 &mut self,
10544 text: &str,
10545 relative_utf16_range: Option<Range<isize>>,
10546 cx: &mut ViewContext<Self>,
10547 ) {
10548 if !self.input_enabled {
10549 cx.emit(EditorEvent::InputIgnored { text: text.into() });
10550 return;
10551 }
10552 if let Some(relative_utf16_range) = relative_utf16_range {
10553 let selections = self.selections.all::<OffsetUtf16>(cx);
10554 self.change_selections(None, cx, |s| {
10555 let new_ranges = selections.into_iter().map(|range| {
10556 let start = OffsetUtf16(
10557 range
10558 .head()
10559 .0
10560 .saturating_add_signed(relative_utf16_range.start),
10561 );
10562 let end = OffsetUtf16(
10563 range
10564 .head()
10565 .0
10566 .saturating_add_signed(relative_utf16_range.end),
10567 );
10568 start..end
10569 });
10570 s.select_ranges(new_ranges);
10571 });
10572 }
10573
10574 self.handle_input(text, cx);
10575 }
10576
10577 pub fn supports_inlay_hints(&self, cx: &AppContext) -> bool {
10578 let Some(project) = self.project.as_ref() else {
10579 return false;
10580 };
10581 let project = project.read(cx);
10582
10583 let mut supports = false;
10584 self.buffer().read(cx).for_each_buffer(|buffer| {
10585 if !supports {
10586 supports = project
10587 .language_servers_for_buffer(buffer.read(cx), cx)
10588 .any(
10589 |(_, server)| match server.capabilities().inlay_hint_provider {
10590 Some(lsp::OneOf::Left(enabled)) => enabled,
10591 Some(lsp::OneOf::Right(_)) => true,
10592 None => false,
10593 },
10594 )
10595 }
10596 });
10597 supports
10598 }
10599
10600 pub fn focus(&self, cx: &mut WindowContext) {
10601 cx.focus(&self.focus_handle)
10602 }
10603
10604 pub fn is_focused(&self, cx: &WindowContext) -> bool {
10605 self.focus_handle.is_focused(cx)
10606 }
10607
10608 fn handle_focus(&mut self, cx: &mut ViewContext<Self>) {
10609 cx.emit(EditorEvent::Focused);
10610
10611 if let Some(rename) = self.pending_rename.as_ref() {
10612 let rename_editor_focus_handle = rename.editor.read(cx).focus_handle.clone();
10613 cx.focus(&rename_editor_focus_handle);
10614 } else {
10615 if let Some(blame) = self.blame.as_ref() {
10616 blame.update(cx, GitBlame::focus)
10617 }
10618
10619 self.blink_manager.update(cx, BlinkManager::enable);
10620 self.show_cursor_names(cx);
10621 self.buffer.update(cx, |buffer, cx| {
10622 buffer.finalize_last_transaction(cx);
10623 if self.leader_peer_id.is_none() {
10624 buffer.set_active_selections(
10625 &self.selections.disjoint_anchors(),
10626 self.selections.line_mode,
10627 self.cursor_shape,
10628 cx,
10629 );
10630 }
10631 });
10632 }
10633 }
10634
10635 pub fn handle_blur(&mut self, cx: &mut ViewContext<Self>) {
10636 self.blink_manager.update(cx, BlinkManager::disable);
10637 self.buffer
10638 .update(cx, |buffer, cx| buffer.remove_active_selections(cx));
10639
10640 if let Some(blame) = self.blame.as_ref() {
10641 blame.update(cx, GitBlame::blur)
10642 }
10643 self.hide_context_menu(cx);
10644 hide_hover(self, cx);
10645 cx.emit(EditorEvent::Blurred);
10646 cx.notify();
10647 }
10648
10649 pub fn register_action<A: Action>(
10650 &mut self,
10651 listener: impl Fn(&A, &mut WindowContext) + 'static,
10652 ) -> &mut Self {
10653 let listener = Arc::new(listener);
10654
10655 self.editor_actions.push(Box::new(move |cx| {
10656 let _view = cx.view().clone();
10657 let cx = cx.window_context();
10658 let listener = listener.clone();
10659 cx.on_action(TypeId::of::<A>(), move |action, phase, cx| {
10660 let action = action.downcast_ref().unwrap();
10661 if phase == DispatchPhase::Bubble {
10662 listener(action, cx)
10663 }
10664 })
10665 }));
10666 self
10667 }
10668}
10669
10670fn hunks_for_selections(
10671 multi_buffer_snapshot: &MultiBufferSnapshot,
10672 selections: &[Selection<Anchor>],
10673) -> Vec<DiffHunk<MultiBufferRow>> {
10674 let mut hunks = Vec::with_capacity(selections.len());
10675 let mut processed_buffer_rows: HashMap<BufferId, HashSet<Range<text::Anchor>>> =
10676 HashMap::default();
10677 let buffer_rows_for_selections = selections.iter().map(|selection| {
10678 let head = selection.head();
10679 let tail = selection.tail();
10680 let start = MultiBufferRow(tail.to_point(&multi_buffer_snapshot).row);
10681 let end = MultiBufferRow(head.to_point(&multi_buffer_snapshot).row);
10682 if start > end {
10683 end..start
10684 } else {
10685 start..end
10686 }
10687 });
10688
10689 for selected_multi_buffer_rows in buffer_rows_for_selections {
10690 let query_rows =
10691 selected_multi_buffer_rows.start..selected_multi_buffer_rows.end.next_row();
10692 for hunk in multi_buffer_snapshot.git_diff_hunks_in_range(query_rows.clone()) {
10693 // Deleted hunk is an empty row range, no caret can be placed there and Zed allows to revert it
10694 // when the caret is just above or just below the deleted hunk.
10695 let allow_adjacent = hunk_status(&hunk) == DiffHunkStatus::Removed;
10696 let related_to_selection = if allow_adjacent {
10697 hunk.associated_range.overlaps(&query_rows)
10698 || hunk.associated_range.start == query_rows.end
10699 || hunk.associated_range.end == query_rows.start
10700 } else {
10701 // `selected_multi_buffer_rows` are inclusive (e.g. [2..2] means 2nd row is selected)
10702 // `hunk.associated_range` is exclusive (e.g. [2..3] means 2nd row is selected)
10703 hunk.associated_range.overlaps(&selected_multi_buffer_rows)
10704 || selected_multi_buffer_rows.end == hunk.associated_range.start
10705 };
10706 if related_to_selection {
10707 if !processed_buffer_rows
10708 .entry(hunk.buffer_id)
10709 .or_default()
10710 .insert(hunk.buffer_range.start..hunk.buffer_range.end)
10711 {
10712 continue;
10713 }
10714 hunks.push(hunk);
10715 }
10716 }
10717 }
10718
10719 hunks
10720}
10721
10722pub trait CollaborationHub {
10723 fn collaborators<'a>(&self, cx: &'a AppContext) -> &'a HashMap<PeerId, Collaborator>;
10724 fn user_participant_indices<'a>(
10725 &self,
10726 cx: &'a AppContext,
10727 ) -> &'a HashMap<u64, ParticipantIndex>;
10728 fn user_names(&self, cx: &AppContext) -> HashMap<u64, SharedString>;
10729}
10730
10731impl CollaborationHub for Model<Project> {
10732 fn collaborators<'a>(&self, cx: &'a AppContext) -> &'a HashMap<PeerId, Collaborator> {
10733 self.read(cx).collaborators()
10734 }
10735
10736 fn user_participant_indices<'a>(
10737 &self,
10738 cx: &'a AppContext,
10739 ) -> &'a HashMap<u64, ParticipantIndex> {
10740 self.read(cx).user_store().read(cx).participant_indices()
10741 }
10742
10743 fn user_names(&self, cx: &AppContext) -> HashMap<u64, SharedString> {
10744 let this = self.read(cx);
10745 let user_ids = this.collaborators().values().map(|c| c.user_id);
10746 this.user_store().read_with(cx, |user_store, cx| {
10747 user_store.participant_names(user_ids, cx)
10748 })
10749 }
10750}
10751
10752pub trait CompletionProvider {
10753 fn completions(
10754 &self,
10755 buffer: &Model<Buffer>,
10756 buffer_position: text::Anchor,
10757 cx: &mut ViewContext<Editor>,
10758 ) -> Task<Result<Vec<Completion>>>;
10759
10760 fn resolve_completions(
10761 &self,
10762 buffer: Model<Buffer>,
10763 completion_indices: Vec<usize>,
10764 completions: Arc<RwLock<Box<[Completion]>>>,
10765 cx: &mut ViewContext<Editor>,
10766 ) -> Task<Result<bool>>;
10767
10768 fn apply_additional_edits_for_completion(
10769 &self,
10770 buffer: Model<Buffer>,
10771 completion: Completion,
10772 push_to_history: bool,
10773 cx: &mut ViewContext<Editor>,
10774 ) -> Task<Result<Option<language::Transaction>>>;
10775}
10776
10777impl CompletionProvider for Model<Project> {
10778 fn completions(
10779 &self,
10780 buffer: &Model<Buffer>,
10781 buffer_position: text::Anchor,
10782 cx: &mut ViewContext<Editor>,
10783 ) -> Task<Result<Vec<Completion>>> {
10784 self.update(cx, |project, cx| {
10785 project.completions(&buffer, buffer_position, cx)
10786 })
10787 }
10788
10789 fn resolve_completions(
10790 &self,
10791 buffer: Model<Buffer>,
10792 completion_indices: Vec<usize>,
10793 completions: Arc<RwLock<Box<[Completion]>>>,
10794 cx: &mut ViewContext<Editor>,
10795 ) -> Task<Result<bool>> {
10796 self.update(cx, |project, cx| {
10797 project.resolve_completions(buffer, completion_indices, completions, cx)
10798 })
10799 }
10800
10801 fn apply_additional_edits_for_completion(
10802 &self,
10803 buffer: Model<Buffer>,
10804 completion: Completion,
10805 push_to_history: bool,
10806 cx: &mut ViewContext<Editor>,
10807 ) -> Task<Result<Option<language::Transaction>>> {
10808 self.update(cx, |project, cx| {
10809 project.apply_additional_edits_for_completion(buffer, completion, push_to_history, cx)
10810 })
10811 }
10812}
10813
10814fn inlay_hint_settings(
10815 location: Anchor,
10816 snapshot: &MultiBufferSnapshot,
10817 cx: &mut ViewContext<'_, Editor>,
10818) -> InlayHintSettings {
10819 let file = snapshot.file_at(location);
10820 let language = snapshot.language_at(location);
10821 let settings = all_language_settings(file, cx);
10822 settings
10823 .language(language.map(|l| l.name()).as_deref())
10824 .inlay_hints
10825}
10826
10827fn consume_contiguous_rows(
10828 contiguous_row_selections: &mut Vec<Selection<Point>>,
10829 selection: &Selection<Point>,
10830 display_map: &DisplaySnapshot,
10831 selections: &mut std::iter::Peekable<std::slice::Iter<Selection<Point>>>,
10832) -> (MultiBufferRow, MultiBufferRow) {
10833 contiguous_row_selections.push(selection.clone());
10834 let start_row = MultiBufferRow(selection.start.row);
10835 let mut end_row = ending_row(selection, display_map);
10836
10837 while let Some(next_selection) = selections.peek() {
10838 if next_selection.start.row <= end_row.0 {
10839 end_row = ending_row(next_selection, display_map);
10840 contiguous_row_selections.push(selections.next().unwrap().clone());
10841 } else {
10842 break;
10843 }
10844 }
10845 (start_row, end_row)
10846}
10847
10848fn ending_row(next_selection: &Selection<Point>, display_map: &DisplaySnapshot) -> MultiBufferRow {
10849 if next_selection.end.column > 0 || next_selection.is_empty() {
10850 MultiBufferRow(display_map.next_line_boundary(next_selection.end).0.row + 1)
10851 } else {
10852 MultiBufferRow(next_selection.end.row)
10853 }
10854}
10855
10856impl EditorSnapshot {
10857 pub fn remote_selections_in_range<'a>(
10858 &'a self,
10859 range: &'a Range<Anchor>,
10860 collaboration_hub: &dyn CollaborationHub,
10861 cx: &'a AppContext,
10862 ) -> impl 'a + Iterator<Item = RemoteSelection> {
10863 let participant_names = collaboration_hub.user_names(cx);
10864 let participant_indices = collaboration_hub.user_participant_indices(cx);
10865 let collaborators_by_peer_id = collaboration_hub.collaborators(cx);
10866 let collaborators_by_replica_id = collaborators_by_peer_id
10867 .iter()
10868 .map(|(_, collaborator)| (collaborator.replica_id, collaborator))
10869 .collect::<HashMap<_, _>>();
10870 self.buffer_snapshot
10871 .remote_selections_in_range(range)
10872 .filter_map(move |(replica_id, line_mode, cursor_shape, selection)| {
10873 let collaborator = collaborators_by_replica_id.get(&replica_id)?;
10874 let participant_index = participant_indices.get(&collaborator.user_id).copied();
10875 let user_name = participant_names.get(&collaborator.user_id).cloned();
10876 Some(RemoteSelection {
10877 replica_id,
10878 selection,
10879 cursor_shape,
10880 line_mode,
10881 participant_index,
10882 peer_id: collaborator.peer_id,
10883 user_name,
10884 })
10885 })
10886 }
10887
10888 pub fn language_at<T: ToOffset>(&self, position: T) -> Option<&Arc<Language>> {
10889 self.display_snapshot.buffer_snapshot.language_at(position)
10890 }
10891
10892 pub fn is_focused(&self) -> bool {
10893 self.is_focused
10894 }
10895
10896 pub fn placeholder_text(&self) -> Option<&Arc<str>> {
10897 self.placeholder_text.as_ref()
10898 }
10899
10900 pub fn scroll_position(&self) -> gpui::Point<f32> {
10901 self.scroll_anchor.scroll_position(&self.display_snapshot)
10902 }
10903
10904 pub fn gutter_dimensions(
10905 &self,
10906 font_id: FontId,
10907 font_size: Pixels,
10908 em_width: Pixels,
10909 max_line_number_width: Pixels,
10910 cx: &AppContext,
10911 ) -> GutterDimensions {
10912 if !self.show_gutter {
10913 return GutterDimensions::default();
10914 }
10915 let descent = cx.text_system().descent(font_id, font_size);
10916
10917 let show_git_gutter = matches!(
10918 ProjectSettings::get_global(cx).git.git_gutter,
10919 Some(GitGutterSetting::TrackedFiles)
10920 );
10921 let gutter_settings = EditorSettings::get_global(cx).gutter;
10922 let gutter_lines_enabled = gutter_settings.line_numbers;
10923 let line_gutter_width = if gutter_lines_enabled {
10924 // Avoid flicker-like gutter resizes when the line number gains another digit and only resize the gutter on files with N*10^5 lines.
10925 let min_width_for_number_on_gutter = em_width * 4.0;
10926 max_line_number_width.max(min_width_for_number_on_gutter)
10927 } else {
10928 0.0.into()
10929 };
10930
10931 let git_blame_entries_width = self
10932 .render_git_blame_gutter
10933 .then_some(em_width * GIT_BLAME_GUTTER_WIDTH_CHARS);
10934
10935 let mut left_padding = git_blame_entries_width.unwrap_or(Pixels::ZERO);
10936 left_padding += if gutter_settings.code_actions {
10937 em_width * 3.0
10938 } else if show_git_gutter && gutter_lines_enabled {
10939 em_width * 2.0
10940 } else if show_git_gutter || gutter_lines_enabled {
10941 em_width
10942 } else {
10943 px(0.)
10944 };
10945
10946 let right_padding = if gutter_settings.folds && gutter_lines_enabled {
10947 em_width * 4.0
10948 } else if gutter_settings.folds {
10949 em_width * 3.0
10950 } else if gutter_lines_enabled {
10951 em_width
10952 } else {
10953 px(0.)
10954 };
10955
10956 GutterDimensions {
10957 left_padding,
10958 right_padding,
10959 width: line_gutter_width + left_padding + right_padding,
10960 margin: -descent,
10961 git_blame_entries_width,
10962 }
10963 }
10964}
10965
10966impl Deref for EditorSnapshot {
10967 type Target = DisplaySnapshot;
10968
10969 fn deref(&self) -> &Self::Target {
10970 &self.display_snapshot
10971 }
10972}
10973
10974#[derive(Clone, Debug, PartialEq, Eq)]
10975pub enum EditorEvent {
10976 InputIgnored {
10977 text: Arc<str>,
10978 },
10979 InputHandled {
10980 utf16_range_to_replace: Option<Range<isize>>,
10981 text: Arc<str>,
10982 },
10983 ExcerptsAdded {
10984 buffer: Model<Buffer>,
10985 predecessor: ExcerptId,
10986 excerpts: Vec<(ExcerptId, ExcerptRange<language::Anchor>)>,
10987 },
10988 ExcerptsRemoved {
10989 ids: Vec<ExcerptId>,
10990 },
10991 BufferEdited,
10992 Edited,
10993 Reparsed,
10994 Focused,
10995 Blurred,
10996 DirtyChanged,
10997 Saved,
10998 TitleChanged,
10999 DiffBaseChanged,
11000 SelectionsChanged {
11001 local: bool,
11002 },
11003 ScrollPositionChanged {
11004 local: bool,
11005 autoscroll: bool,
11006 },
11007 Closed,
11008 TransactionUndone {
11009 transaction_id: clock::Lamport,
11010 },
11011 TransactionBegun {
11012 transaction_id: clock::Lamport,
11013 },
11014}
11015
11016impl EventEmitter<EditorEvent> for Editor {}
11017
11018impl FocusableView for Editor {
11019 fn focus_handle(&self, _cx: &AppContext) -> FocusHandle {
11020 self.focus_handle.clone()
11021 }
11022}
11023
11024impl Render for Editor {
11025 fn render<'a>(&mut self, cx: &mut ViewContext<'a, Self>) -> impl IntoElement {
11026 let settings = ThemeSettings::get_global(cx);
11027
11028 let text_style = match self.mode {
11029 EditorMode::SingleLine | EditorMode::AutoHeight { .. } => TextStyle {
11030 color: cx.theme().colors().editor_foreground,
11031 font_family: settings.ui_font.family.clone(),
11032 font_features: settings.ui_font.features.clone(),
11033 font_size: rems(0.875).into(),
11034 font_weight: FontWeight::NORMAL,
11035 font_style: FontStyle::Normal,
11036 line_height: relative(settings.buffer_line_height.value()),
11037 background_color: None,
11038 underline: None,
11039 strikethrough: None,
11040 white_space: WhiteSpace::Normal,
11041 },
11042 EditorMode::Full => TextStyle {
11043 color: cx.theme().colors().editor_foreground,
11044 font_family: settings.buffer_font.family.clone(),
11045 font_features: settings.buffer_font.features.clone(),
11046 font_size: settings.buffer_font_size(cx).into(),
11047 font_weight: FontWeight::NORMAL,
11048 font_style: FontStyle::Normal,
11049 line_height: relative(settings.buffer_line_height.value()),
11050 background_color: None,
11051 underline: None,
11052 strikethrough: None,
11053 white_space: WhiteSpace::Normal,
11054 },
11055 };
11056
11057 let background = match self.mode {
11058 EditorMode::SingleLine => cx.theme().system().transparent,
11059 EditorMode::AutoHeight { max_lines: _ } => cx.theme().system().transparent,
11060 EditorMode::Full => cx.theme().colors().editor_background,
11061 };
11062
11063 EditorElement::new(
11064 cx.view(),
11065 EditorStyle {
11066 background,
11067 local_player: cx.theme().players().local(),
11068 text: text_style,
11069 scrollbar_width: px(13.),
11070 syntax: cx.theme().syntax().clone(),
11071 status: cx.theme().status().clone(),
11072 inlay_hints_style: HighlightStyle {
11073 color: Some(cx.theme().status().hint),
11074 ..HighlightStyle::default()
11075 },
11076 suggestions_style: HighlightStyle {
11077 color: Some(cx.theme().status().predictive),
11078 ..HighlightStyle::default()
11079 },
11080 },
11081 )
11082 }
11083}
11084
11085impl ViewInputHandler for Editor {
11086 fn text_for_range(
11087 &mut self,
11088 range_utf16: Range<usize>,
11089 cx: &mut ViewContext<Self>,
11090 ) -> Option<String> {
11091 Some(
11092 self.buffer
11093 .read(cx)
11094 .read(cx)
11095 .text_for_range(OffsetUtf16(range_utf16.start)..OffsetUtf16(range_utf16.end))
11096 .collect(),
11097 )
11098 }
11099
11100 fn selected_text_range(&mut self, cx: &mut ViewContext<Self>) -> Option<Range<usize>> {
11101 // Prevent the IME menu from appearing when holding down an alphabetic key
11102 // while input is disabled.
11103 if !self.input_enabled {
11104 return None;
11105 }
11106
11107 let range = self.selections.newest::<OffsetUtf16>(cx).range();
11108 Some(range.start.0..range.end.0)
11109 }
11110
11111 fn marked_text_range(&self, cx: &mut ViewContext<Self>) -> Option<Range<usize>> {
11112 let snapshot = self.buffer.read(cx).read(cx);
11113 let range = self.text_highlights::<InputComposition>(cx)?.1.get(0)?;
11114 Some(range.start.to_offset_utf16(&snapshot).0..range.end.to_offset_utf16(&snapshot).0)
11115 }
11116
11117 fn unmark_text(&mut self, cx: &mut ViewContext<Self>) {
11118 self.clear_highlights::<InputComposition>(cx);
11119 self.ime_transaction.take();
11120 }
11121
11122 fn replace_text_in_range(
11123 &mut self,
11124 range_utf16: Option<Range<usize>>,
11125 text: &str,
11126 cx: &mut ViewContext<Self>,
11127 ) {
11128 if !self.input_enabled {
11129 cx.emit(EditorEvent::InputIgnored { text: text.into() });
11130 return;
11131 }
11132
11133 self.transact(cx, |this, cx| {
11134 let new_selected_ranges = if let Some(range_utf16) = range_utf16 {
11135 let range_utf16 = OffsetUtf16(range_utf16.start)..OffsetUtf16(range_utf16.end);
11136 Some(this.selection_replacement_ranges(range_utf16, cx))
11137 } else {
11138 this.marked_text_ranges(cx)
11139 };
11140
11141 let range_to_replace = new_selected_ranges.as_ref().and_then(|ranges_to_replace| {
11142 let newest_selection_id = this.selections.newest_anchor().id;
11143 this.selections
11144 .all::<OffsetUtf16>(cx)
11145 .iter()
11146 .zip(ranges_to_replace.iter())
11147 .find_map(|(selection, range)| {
11148 if selection.id == newest_selection_id {
11149 Some(
11150 (range.start.0 as isize - selection.head().0 as isize)
11151 ..(range.end.0 as isize - selection.head().0 as isize),
11152 )
11153 } else {
11154 None
11155 }
11156 })
11157 });
11158
11159 cx.emit(EditorEvent::InputHandled {
11160 utf16_range_to_replace: range_to_replace,
11161 text: text.into(),
11162 });
11163
11164 if let Some(new_selected_ranges) = new_selected_ranges {
11165 this.change_selections(None, cx, |selections| {
11166 selections.select_ranges(new_selected_ranges)
11167 });
11168 this.backspace(&Default::default(), cx);
11169 }
11170
11171 this.handle_input(text, cx);
11172 });
11173
11174 if let Some(transaction) = self.ime_transaction {
11175 self.buffer.update(cx, |buffer, cx| {
11176 buffer.group_until_transaction(transaction, cx);
11177 });
11178 }
11179
11180 self.unmark_text(cx);
11181 }
11182
11183 fn replace_and_mark_text_in_range(
11184 &mut self,
11185 range_utf16: Option<Range<usize>>,
11186 text: &str,
11187 new_selected_range_utf16: Option<Range<usize>>,
11188 cx: &mut ViewContext<Self>,
11189 ) {
11190 if !self.input_enabled {
11191 cx.emit(EditorEvent::InputIgnored { text: text.into() });
11192 return;
11193 }
11194
11195 let transaction = self.transact(cx, |this, cx| {
11196 let ranges_to_replace = if let Some(mut marked_ranges) = this.marked_text_ranges(cx) {
11197 let snapshot = this.buffer.read(cx).read(cx);
11198 if let Some(relative_range_utf16) = range_utf16.as_ref() {
11199 for marked_range in &mut marked_ranges {
11200 marked_range.end.0 = marked_range.start.0 + relative_range_utf16.end;
11201 marked_range.start.0 += relative_range_utf16.start;
11202 marked_range.start =
11203 snapshot.clip_offset_utf16(marked_range.start, Bias::Left);
11204 marked_range.end =
11205 snapshot.clip_offset_utf16(marked_range.end, Bias::Right);
11206 }
11207 }
11208 Some(marked_ranges)
11209 } else if let Some(range_utf16) = range_utf16 {
11210 let range_utf16 = OffsetUtf16(range_utf16.start)..OffsetUtf16(range_utf16.end);
11211 Some(this.selection_replacement_ranges(range_utf16, cx))
11212 } else {
11213 None
11214 };
11215
11216 let range_to_replace = ranges_to_replace.as_ref().and_then(|ranges_to_replace| {
11217 let newest_selection_id = this.selections.newest_anchor().id;
11218 this.selections
11219 .all::<OffsetUtf16>(cx)
11220 .iter()
11221 .zip(ranges_to_replace.iter())
11222 .find_map(|(selection, range)| {
11223 if selection.id == newest_selection_id {
11224 Some(
11225 (range.start.0 as isize - selection.head().0 as isize)
11226 ..(range.end.0 as isize - selection.head().0 as isize),
11227 )
11228 } else {
11229 None
11230 }
11231 })
11232 });
11233
11234 cx.emit(EditorEvent::InputHandled {
11235 utf16_range_to_replace: range_to_replace,
11236 text: text.into(),
11237 });
11238
11239 if let Some(ranges) = ranges_to_replace {
11240 this.change_selections(None, cx, |s| s.select_ranges(ranges));
11241 }
11242
11243 let marked_ranges = {
11244 let snapshot = this.buffer.read(cx).read(cx);
11245 this.selections
11246 .disjoint_anchors()
11247 .iter()
11248 .map(|selection| {
11249 selection.start.bias_left(&snapshot)..selection.end.bias_right(&snapshot)
11250 })
11251 .collect::<Vec<_>>()
11252 };
11253
11254 if text.is_empty() {
11255 this.unmark_text(cx);
11256 } else {
11257 this.highlight_text::<InputComposition>(
11258 marked_ranges.clone(),
11259 HighlightStyle {
11260 underline: Some(UnderlineStyle {
11261 thickness: px(1.),
11262 color: None,
11263 wavy: false,
11264 }),
11265 ..Default::default()
11266 },
11267 cx,
11268 );
11269 }
11270
11271 // Disable auto-closing when composing text (i.e. typing a `"` on a Brazilian keyboard)
11272 let use_autoclose = this.use_autoclose;
11273 this.set_use_autoclose(false);
11274 this.handle_input(text, cx);
11275 this.set_use_autoclose(use_autoclose);
11276
11277 if let Some(new_selected_range) = new_selected_range_utf16 {
11278 let snapshot = this.buffer.read(cx).read(cx);
11279 let new_selected_ranges = marked_ranges
11280 .into_iter()
11281 .map(|marked_range| {
11282 let insertion_start = marked_range.start.to_offset_utf16(&snapshot).0;
11283 let new_start = OffsetUtf16(new_selected_range.start + insertion_start);
11284 let new_end = OffsetUtf16(new_selected_range.end + insertion_start);
11285 snapshot.clip_offset_utf16(new_start, Bias::Left)
11286 ..snapshot.clip_offset_utf16(new_end, Bias::Right)
11287 })
11288 .collect::<Vec<_>>();
11289
11290 drop(snapshot);
11291 this.change_selections(None, cx, |selections| {
11292 selections.select_ranges(new_selected_ranges)
11293 });
11294 }
11295 });
11296
11297 self.ime_transaction = self.ime_transaction.or(transaction);
11298 if let Some(transaction) = self.ime_transaction {
11299 self.buffer.update(cx, |buffer, cx| {
11300 buffer.group_until_transaction(transaction, cx);
11301 });
11302 }
11303
11304 if self.text_highlights::<InputComposition>(cx).is_none() {
11305 self.ime_transaction.take();
11306 }
11307 }
11308
11309 fn bounds_for_range(
11310 &mut self,
11311 range_utf16: Range<usize>,
11312 element_bounds: gpui::Bounds<Pixels>,
11313 cx: &mut ViewContext<Self>,
11314 ) -> Option<gpui::Bounds<Pixels>> {
11315 let text_layout_details = self.text_layout_details(cx);
11316 let style = &text_layout_details.editor_style;
11317 let font_id = cx.text_system().resolve_font(&style.text.font());
11318 let font_size = style.text.font_size.to_pixels(cx.rem_size());
11319 let line_height = style.text.line_height_in_pixels(cx.rem_size());
11320 let em_width = cx
11321 .text_system()
11322 .typographic_bounds(font_id, font_size, 'm')
11323 .unwrap()
11324 .size
11325 .width;
11326
11327 let snapshot = self.snapshot(cx);
11328 let scroll_position = snapshot.scroll_position();
11329 let scroll_left = scroll_position.x * em_width;
11330
11331 let start = OffsetUtf16(range_utf16.start).to_display_point(&snapshot);
11332 let x = snapshot.x_for_display_point(start, &text_layout_details) - scroll_left
11333 + self.gutter_dimensions.width;
11334 let y = line_height * (start.row().as_f32() - scroll_position.y);
11335
11336 Some(Bounds {
11337 origin: element_bounds.origin + point(x, y),
11338 size: size(em_width, line_height),
11339 })
11340 }
11341}
11342
11343trait SelectionExt {
11344 fn display_range(&self, map: &DisplaySnapshot) -> Range<DisplayPoint>;
11345 fn spanned_rows(
11346 &self,
11347 include_end_if_at_line_start: bool,
11348 map: &DisplaySnapshot,
11349 ) -> Range<MultiBufferRow>;
11350}
11351
11352impl<T: ToPoint + ToOffset> SelectionExt for Selection<T> {
11353 fn display_range(&self, map: &DisplaySnapshot) -> Range<DisplayPoint> {
11354 let start = self
11355 .start
11356 .to_point(&map.buffer_snapshot)
11357 .to_display_point(map);
11358 let end = self
11359 .end
11360 .to_point(&map.buffer_snapshot)
11361 .to_display_point(map);
11362 if self.reversed {
11363 end..start
11364 } else {
11365 start..end
11366 }
11367 }
11368
11369 fn spanned_rows(
11370 &self,
11371 include_end_if_at_line_start: bool,
11372 map: &DisplaySnapshot,
11373 ) -> Range<MultiBufferRow> {
11374 let start = self.start.to_point(&map.buffer_snapshot);
11375 let mut end = self.end.to_point(&map.buffer_snapshot);
11376 if !include_end_if_at_line_start && start.row != end.row && end.column == 0 {
11377 end.row -= 1;
11378 }
11379
11380 let buffer_start = map.prev_line_boundary(start).0;
11381 let buffer_end = map.next_line_boundary(end).0;
11382 MultiBufferRow(buffer_start.row)..MultiBufferRow(buffer_end.row + 1)
11383 }
11384}
11385
11386impl<T: InvalidationRegion> InvalidationStack<T> {
11387 fn invalidate<S>(&mut self, selections: &[Selection<S>], buffer: &MultiBufferSnapshot)
11388 where
11389 S: Clone + ToOffset,
11390 {
11391 while let Some(region) = self.last() {
11392 let all_selections_inside_invalidation_ranges =
11393 if selections.len() == region.ranges().len() {
11394 selections
11395 .iter()
11396 .zip(region.ranges().iter().map(|r| r.to_offset(buffer)))
11397 .all(|(selection, invalidation_range)| {
11398 let head = selection.head().to_offset(buffer);
11399 invalidation_range.start <= head && invalidation_range.end >= head
11400 })
11401 } else {
11402 false
11403 };
11404
11405 if all_selections_inside_invalidation_ranges {
11406 break;
11407 } else {
11408 self.pop();
11409 }
11410 }
11411 }
11412}
11413
11414impl<T> Default for InvalidationStack<T> {
11415 fn default() -> Self {
11416 Self(Default::default())
11417 }
11418}
11419
11420impl<T> Deref for InvalidationStack<T> {
11421 type Target = Vec<T>;
11422
11423 fn deref(&self) -> &Self::Target {
11424 &self.0
11425 }
11426}
11427
11428impl<T> DerefMut for InvalidationStack<T> {
11429 fn deref_mut(&mut self) -> &mut Self::Target {
11430 &mut self.0
11431 }
11432}
11433
11434impl InvalidationRegion for SnippetState {
11435 fn ranges(&self) -> &[Range<Anchor>] {
11436 &self.ranges[self.active_index]
11437 }
11438}
11439
11440pub fn diagnostic_block_renderer(diagnostic: Diagnostic, _is_valid: bool) -> RenderBlock {
11441 let (text_without_backticks, code_ranges) = highlight_diagnostic_message(&diagnostic);
11442
11443 Box::new(move |cx: &mut BlockContext| {
11444 let group_id: SharedString = cx.block_id.to_string().into();
11445
11446 let mut text_style = cx.text_style().clone();
11447 text_style.color = diagnostic_style(diagnostic.severity, true, cx.theme().status());
11448 let theme_settings = ThemeSettings::get_global(cx);
11449 text_style.font_family = theme_settings.buffer_font.family.clone();
11450 text_style.font_style = theme_settings.buffer_font.style;
11451 text_style.font_features = theme_settings.buffer_font.features.clone();
11452 text_style.font_weight = theme_settings.buffer_font.weight;
11453
11454 let multi_line_diagnostic = diagnostic.message.contains('\n');
11455
11456 let buttons = |diagnostic: &Diagnostic, block_id: usize| {
11457 if multi_line_diagnostic {
11458 v_flex()
11459 } else {
11460 h_flex()
11461 }
11462 .children(diagnostic.is_primary.then(|| {
11463 IconButton::new(("close-block", block_id), IconName::XCircle)
11464 .icon_color(Color::Muted)
11465 .size(ButtonSize::Compact)
11466 .style(ButtonStyle::Transparent)
11467 .visible_on_hover(group_id.clone())
11468 .on_click(move |_click, cx| cx.dispatch_action(Box::new(Cancel)))
11469 .tooltip(|cx| Tooltip::for_action("Close Diagnostics", &Cancel, cx))
11470 }))
11471 .child(
11472 IconButton::new(("copy-block", block_id), IconName::Copy)
11473 .icon_color(Color::Muted)
11474 .size(ButtonSize::Compact)
11475 .style(ButtonStyle::Transparent)
11476 .visible_on_hover(group_id.clone())
11477 .on_click({
11478 let message = diagnostic.message.clone();
11479 move |_click, cx| cx.write_to_clipboard(ClipboardItem::new(message.clone()))
11480 })
11481 .tooltip(|cx| Tooltip::text("Copy diagnostic message", cx)),
11482 )
11483 };
11484
11485 let icon_size = buttons(&diagnostic, cx.block_id)
11486 .into_any_element()
11487 .layout_as_root(AvailableSpace::min_size(), cx);
11488
11489 h_flex()
11490 .id(cx.block_id)
11491 .group(group_id.clone())
11492 .relative()
11493 .size_full()
11494 .pl(cx.gutter_dimensions.width)
11495 .w(cx.max_width + cx.gutter_dimensions.width)
11496 .child(
11497 div()
11498 .flex()
11499 .w(cx.anchor_x - cx.gutter_dimensions.width - icon_size.width)
11500 .flex_shrink(),
11501 )
11502 .child(buttons(&diagnostic, cx.block_id))
11503 .child(div().flex().flex_shrink_0().child(
11504 StyledText::new(text_without_backticks.clone()).with_highlights(
11505 &text_style,
11506 code_ranges.iter().map(|range| {
11507 (
11508 range.clone(),
11509 HighlightStyle {
11510 font_weight: Some(FontWeight::BOLD),
11511 ..Default::default()
11512 },
11513 )
11514 }),
11515 ),
11516 ))
11517 .into_any_element()
11518 })
11519}
11520
11521pub fn highlight_diagnostic_message(diagnostic: &Diagnostic) -> (SharedString, Vec<Range<usize>>) {
11522 let mut text_without_backticks = String::new();
11523 let mut code_ranges = Vec::new();
11524
11525 if let Some(source) = &diagnostic.source {
11526 text_without_backticks.push_str(&source);
11527 code_ranges.push(0..source.len());
11528 text_without_backticks.push_str(": ");
11529 }
11530
11531 let mut prev_offset = 0;
11532 let mut in_code_block = false;
11533 for (ix, _) in diagnostic
11534 .message
11535 .match_indices('`')
11536 .chain([(diagnostic.message.len(), "")])
11537 {
11538 let prev_len = text_without_backticks.len();
11539 text_without_backticks.push_str(&diagnostic.message[prev_offset..ix]);
11540 prev_offset = ix + 1;
11541 if in_code_block {
11542 code_ranges.push(prev_len..text_without_backticks.len());
11543 in_code_block = false;
11544 } else {
11545 in_code_block = true;
11546 }
11547 }
11548
11549 (text_without_backticks.into(), code_ranges)
11550}
11551
11552fn diagnostic_style(severity: DiagnosticSeverity, valid: bool, colors: &StatusColors) -> Hsla {
11553 match (severity, valid) {
11554 (DiagnosticSeverity::ERROR, true) => colors.error,
11555 (DiagnosticSeverity::ERROR, false) => colors.error,
11556 (DiagnosticSeverity::WARNING, true) => colors.warning,
11557 (DiagnosticSeverity::WARNING, false) => colors.warning,
11558 (DiagnosticSeverity::INFORMATION, true) => colors.info,
11559 (DiagnosticSeverity::INFORMATION, false) => colors.info,
11560 (DiagnosticSeverity::HINT, true) => colors.info,
11561 (DiagnosticSeverity::HINT, false) => colors.info,
11562 _ => colors.ignored,
11563 }
11564}
11565
11566pub fn styled_runs_for_code_label<'a>(
11567 label: &'a CodeLabel,
11568 syntax_theme: &'a theme::SyntaxTheme,
11569) -> impl 'a + Iterator<Item = (Range<usize>, HighlightStyle)> {
11570 let fade_out = HighlightStyle {
11571 fade_out: Some(0.35),
11572 ..Default::default()
11573 };
11574
11575 let mut prev_end = label.filter_range.end;
11576 label
11577 .runs
11578 .iter()
11579 .enumerate()
11580 .flat_map(move |(ix, (range, highlight_id))| {
11581 let style = if let Some(style) = highlight_id.style(syntax_theme) {
11582 style
11583 } else {
11584 return Default::default();
11585 };
11586 let mut muted_style = style;
11587 muted_style.highlight(fade_out);
11588
11589 let mut runs = SmallVec::<[(Range<usize>, HighlightStyle); 3]>::new();
11590 if range.start >= label.filter_range.end {
11591 if range.start > prev_end {
11592 runs.push((prev_end..range.start, fade_out));
11593 }
11594 runs.push((range.clone(), muted_style));
11595 } else if range.end <= label.filter_range.end {
11596 runs.push((range.clone(), style));
11597 } else {
11598 runs.push((range.start..label.filter_range.end, style));
11599 runs.push((label.filter_range.end..range.end, muted_style));
11600 }
11601 prev_end = cmp::max(prev_end, range.end);
11602
11603 if ix + 1 == label.runs.len() && label.text.len() > prev_end {
11604 runs.push((prev_end..label.text.len(), fade_out));
11605 }
11606
11607 runs
11608 })
11609}
11610
11611pub(crate) fn split_words(text: &str) -> impl std::iter::Iterator<Item = &str> + '_ {
11612 let mut prev_index = 0;
11613 let mut prev_codepoint: Option<char> = None;
11614 text.char_indices()
11615 .chain([(text.len(), '\0')])
11616 .filter_map(move |(index, codepoint)| {
11617 let prev_codepoint = prev_codepoint.replace(codepoint)?;
11618 let is_boundary = index == text.len()
11619 || !prev_codepoint.is_uppercase() && codepoint.is_uppercase()
11620 || !prev_codepoint.is_alphanumeric() && codepoint.is_alphanumeric();
11621 if is_boundary {
11622 let chunk = &text[prev_index..index];
11623 prev_index = index;
11624 Some(chunk)
11625 } else {
11626 None
11627 }
11628 })
11629}
11630
11631trait RangeToAnchorExt {
11632 fn to_anchors(self, snapshot: &MultiBufferSnapshot) -> Range<Anchor>;
11633}
11634
11635impl<T: ToOffset> RangeToAnchorExt for Range<T> {
11636 fn to_anchors(self, snapshot: &MultiBufferSnapshot) -> Range<Anchor> {
11637 let start_offset = self.start.to_offset(snapshot);
11638 let end_offset = self.end.to_offset(snapshot);
11639 if start_offset == end_offset {
11640 snapshot.anchor_before(start_offset)..snapshot.anchor_before(end_offset)
11641 } else {
11642 snapshot.anchor_after(self.start)..snapshot.anchor_before(self.end)
11643 }
11644 }
11645}
11646
11647pub trait RowExt {
11648 fn as_f32(&self) -> f32;
11649
11650 fn next_row(&self) -> Self;
11651
11652 fn previous_row(&self) -> Self;
11653
11654 fn minus(&self, other: Self) -> u32;
11655}
11656
11657impl RowExt for DisplayRow {
11658 fn as_f32(&self) -> f32 {
11659 self.0 as f32
11660 }
11661
11662 fn next_row(&self) -> Self {
11663 Self(self.0 + 1)
11664 }
11665
11666 fn previous_row(&self) -> Self {
11667 Self(self.0.saturating_sub(1))
11668 }
11669
11670 fn minus(&self, other: Self) -> u32 {
11671 self.0 - other.0
11672 }
11673}
11674
11675impl RowExt for MultiBufferRow {
11676 fn as_f32(&self) -> f32 {
11677 self.0 as f32
11678 }
11679
11680 fn next_row(&self) -> Self {
11681 Self(self.0 + 1)
11682 }
11683
11684 fn previous_row(&self) -> Self {
11685 Self(self.0.saturating_sub(1))
11686 }
11687
11688 fn minus(&self, other: Self) -> u32 {
11689 self.0 - other.0
11690 }
11691}
11692
11693trait RowRangeExt {
11694 type Row;
11695
11696 fn len(&self) -> usize;
11697
11698 fn iter_rows(&self) -> impl DoubleEndedIterator<Item = Self::Row>;
11699}
11700
11701impl RowRangeExt for Range<MultiBufferRow> {
11702 type Row = MultiBufferRow;
11703
11704 fn len(&self) -> usize {
11705 (self.end.0 - self.start.0) as usize
11706 }
11707
11708 fn iter_rows(&self) -> impl DoubleEndedIterator<Item = MultiBufferRow> {
11709 (self.start.0..self.end.0).map(MultiBufferRow)
11710 }
11711}
11712
11713impl RowRangeExt for Range<DisplayRow> {
11714 type Row = DisplayRow;
11715
11716 fn len(&self) -> usize {
11717 (self.end.0 - self.start.0) as usize
11718 }
11719
11720 fn iter_rows(&self) -> impl DoubleEndedIterator<Item = DisplayRow> {
11721 (self.start.0..self.end.0).map(DisplayRow)
11722 }
11723}
11724
11725fn hunk_status(hunk: &DiffHunk<MultiBufferRow>) -> DiffHunkStatus {
11726 if hunk.diff_base_byte_range.is_empty() {
11727 DiffHunkStatus::Added
11728 } else if hunk.associated_range.is_empty() {
11729 DiffHunkStatus::Removed
11730 } else {
11731 DiffHunkStatus::Modified
11732 }
11733}