1pub mod display_map;
2mod element;
3mod hover_popover;
4pub mod items;
5pub mod movement;
6mod multi_buffer;
7pub mod selections_collection;
8
9#[cfg(any(test, feature = "test-support"))]
10pub mod test;
11
12use aho_corasick::AhoCorasick;
13use anyhow::Result;
14use clock::ReplicaId;
15use collections::{BTreeMap, Bound, HashMap, HashSet, VecDeque};
16pub use display_map::DisplayPoint;
17use display_map::*;
18pub use element::*;
19use fuzzy::{StringMatch, StringMatchCandidate};
20use gpui::{
21 actions,
22 color::Color,
23 elements::*,
24 executor,
25 fonts::{self, HighlightStyle, TextStyle},
26 geometry::vector::{vec2f, Vector2F},
27 impl_actions, impl_internal_actions,
28 platform::CursorStyle,
29 text_layout, AppContext, AsyncAppContext, ClipboardItem, Element, ElementBox, Entity,
30 ModelHandle, MutableAppContext, RenderContext, Task, View, ViewContext, ViewHandle,
31 WeakViewHandle,
32};
33use hover_popover::{hide_hover, HoverState};
34pub use language::{char_kind, CharKind};
35use language::{
36 BracketPair, Buffer, CodeAction, CodeLabel, Completion, Diagnostic, DiagnosticSeverity,
37 IndentKind, IndentSize, Language, OffsetRangeExt, Point, Selection, SelectionGoal,
38 TransactionId,
39};
40use multi_buffer::MultiBufferChunks;
41pub use multi_buffer::{
42 Anchor, AnchorRangeExt, ExcerptId, ExcerptRange, MultiBuffer, MultiBufferSnapshot, ToOffset,
43 ToPoint,
44};
45use ordered_float::OrderedFloat;
46use project::{HoverBlock, Project, ProjectPath, ProjectTransaction};
47use selections_collection::{resolve_multiple, MutableSelectionsCollection, SelectionsCollection};
48use serde::{Deserialize, Serialize};
49use settings::Settings;
50use smallvec::SmallVec;
51use smol::Timer;
52use snippet::Snippet;
53use std::{
54 any::TypeId,
55 borrow::Cow,
56 cmp::{self, Ordering, Reverse},
57 mem,
58 ops::{Deref, DerefMut, Range, RangeInclusive},
59 sync::Arc,
60 time::{Duration, Instant},
61};
62pub use sum_tree::Bias;
63use theme::{DiagnosticStyle, Theme};
64use util::{post_inc, ResultExt, TryFutureExt};
65use workspace::{ItemNavHistory, Workspace};
66
67const CURSOR_BLINK_INTERVAL: Duration = Duration::from_millis(500);
68const MAX_LINE_LEN: usize = 1024;
69const MIN_NAVIGATION_HISTORY_ROW_DELTA: i64 = 10;
70const MAX_SELECTION_HISTORY_LEN: usize = 1024;
71
72#[derive(Clone, Deserialize, PartialEq)]
73pub struct SelectNext {
74 #[serde(default)]
75 pub replace_newest: bool,
76}
77
78#[derive(Clone, PartialEq)]
79pub struct GoToDiagnostic(pub Direction);
80
81#[derive(Clone, PartialEq)]
82pub struct Scroll(pub Vector2F);
83
84#[derive(Clone, PartialEq)]
85pub struct Select(pub SelectPhase);
86
87#[derive(Clone, Debug, PartialEq)]
88pub struct Jump {
89 path: ProjectPath,
90 position: Point,
91 anchor: language::Anchor,
92}
93
94#[derive(Clone, Deserialize, PartialEq)]
95pub struct Input(pub String);
96
97#[derive(Clone, Deserialize, PartialEq)]
98pub struct SelectToBeginningOfLine {
99 #[serde(default)]
100 stop_at_soft_wraps: bool,
101}
102
103#[derive(Clone, Deserialize, PartialEq)]
104pub struct SelectToEndOfLine {
105 #[serde(default)]
106 stop_at_soft_wraps: bool,
107}
108
109#[derive(Clone, Deserialize, PartialEq)]
110pub struct ToggleCodeActions {
111 #[serde(default)]
112 pub deployed_from_indicator: bool,
113}
114
115#[derive(Clone, Default, Deserialize, PartialEq)]
116pub struct ConfirmCompletion {
117 #[serde(default)]
118 pub item_ix: Option<usize>,
119}
120
121#[derive(Clone, Default, Deserialize, PartialEq)]
122pub struct ConfirmCodeAction {
123 #[serde(default)]
124 pub item_ix: Option<usize>,
125}
126
127actions!(
128 editor,
129 [
130 Cancel,
131 Backspace,
132 Delete,
133 Newline,
134 GoToNextDiagnostic,
135 GoToPrevDiagnostic,
136 Indent,
137 Outdent,
138 DeleteLine,
139 DeleteToPreviousWordStart,
140 DeleteToPreviousSubwordStart,
141 DeleteToNextWordEnd,
142 DeleteToNextSubwordEnd,
143 DeleteToBeginningOfLine,
144 DeleteToEndOfLine,
145 CutToEndOfLine,
146 DuplicateLine,
147 MoveLineUp,
148 MoveLineDown,
149 Transpose,
150 Cut,
151 Copy,
152 Paste,
153 Undo,
154 Redo,
155 MoveUp,
156 MoveDown,
157 MoveLeft,
158 MoveRight,
159 MoveToPreviousWordStart,
160 MoveToPreviousSubwordStart,
161 MoveToNextWordEnd,
162 MoveToNextSubwordEnd,
163 MoveToBeginningOfLine,
164 MoveToEndOfLine,
165 MoveToBeginning,
166 MoveToEnd,
167 SelectUp,
168 SelectDown,
169 SelectLeft,
170 SelectRight,
171 SelectToPreviousWordStart,
172 SelectToPreviousSubwordStart,
173 SelectToNextWordEnd,
174 SelectToNextSubwordEnd,
175 SelectToBeginning,
176 SelectToEnd,
177 SelectAll,
178 SelectLine,
179 SplitSelectionIntoLines,
180 AddSelectionAbove,
181 AddSelectionBelow,
182 Tab,
183 TabPrev,
184 ToggleComments,
185 SelectLargerSyntaxNode,
186 SelectSmallerSyntaxNode,
187 GoToDefinition,
188 MoveToEnclosingBracket,
189 UndoSelection,
190 RedoSelection,
191 FindAllReferences,
192 Rename,
193 ConfirmRename,
194 PageUp,
195 PageDown,
196 Fold,
197 UnfoldLines,
198 FoldSelectedRanges,
199 ShowCompletions,
200 OpenExcerpts,
201 RestartLanguageServer,
202 Hover,
203 ]
204);
205
206impl_actions!(
207 editor,
208 [
209 Input,
210 SelectNext,
211 SelectToBeginningOfLine,
212 SelectToEndOfLine,
213 ToggleCodeActions,
214 ConfirmCompletion,
215 ConfirmCodeAction,
216 ]
217);
218
219impl_internal_actions!(editor, [Scroll, Select, Jump]);
220
221enum DocumentHighlightRead {}
222enum DocumentHighlightWrite {}
223
224#[derive(Copy, Clone, PartialEq, Eq)]
225pub enum Direction {
226 Prev,
227 Next,
228}
229
230pub fn init(cx: &mut MutableAppContext) {
231 cx.add_action(Editor::new_file);
232 cx.add_action(|this: &mut Editor, action: &Scroll, cx| this.set_scroll_position(action.0, cx));
233 cx.add_action(Editor::select);
234 cx.add_action(Editor::cancel);
235 cx.add_action(Editor::handle_input);
236 cx.add_action(Editor::newline);
237 cx.add_action(Editor::backspace);
238 cx.add_action(Editor::delete);
239 cx.add_action(Editor::tab);
240 cx.add_action(Editor::tab_prev);
241 cx.add_action(Editor::indent);
242 cx.add_action(Editor::outdent);
243 cx.add_action(Editor::delete_line);
244 cx.add_action(Editor::delete_to_previous_word_start);
245 cx.add_action(Editor::delete_to_previous_subword_start);
246 cx.add_action(Editor::delete_to_next_word_end);
247 cx.add_action(Editor::delete_to_next_subword_end);
248 cx.add_action(Editor::delete_to_beginning_of_line);
249 cx.add_action(Editor::delete_to_end_of_line);
250 cx.add_action(Editor::cut_to_end_of_line);
251 cx.add_action(Editor::duplicate_line);
252 cx.add_action(Editor::move_line_up);
253 cx.add_action(Editor::move_line_down);
254 cx.add_action(Editor::transpose);
255 cx.add_action(Editor::cut);
256 cx.add_action(Editor::copy);
257 cx.add_action(Editor::paste);
258 cx.add_action(Editor::undo);
259 cx.add_action(Editor::redo);
260 cx.add_action(Editor::move_up);
261 cx.add_action(Editor::move_down);
262 cx.add_action(Editor::move_left);
263 cx.add_action(Editor::move_right);
264 cx.add_action(Editor::move_to_previous_word_start);
265 cx.add_action(Editor::move_to_previous_subword_start);
266 cx.add_action(Editor::move_to_next_word_end);
267 cx.add_action(Editor::move_to_next_subword_end);
268 cx.add_action(Editor::move_to_beginning_of_line);
269 cx.add_action(Editor::move_to_end_of_line);
270 cx.add_action(Editor::move_to_beginning);
271 cx.add_action(Editor::move_to_end);
272 cx.add_action(Editor::select_up);
273 cx.add_action(Editor::select_down);
274 cx.add_action(Editor::select_left);
275 cx.add_action(Editor::select_right);
276 cx.add_action(Editor::select_to_previous_word_start);
277 cx.add_action(Editor::select_to_previous_subword_start);
278 cx.add_action(Editor::select_to_next_word_end);
279 cx.add_action(Editor::select_to_next_subword_end);
280 cx.add_action(Editor::select_to_beginning_of_line);
281 cx.add_action(Editor::select_to_end_of_line);
282 cx.add_action(Editor::select_to_beginning);
283 cx.add_action(Editor::select_to_end);
284 cx.add_action(Editor::select_all);
285 cx.add_action(Editor::select_line);
286 cx.add_action(Editor::split_selection_into_lines);
287 cx.add_action(Editor::add_selection_above);
288 cx.add_action(Editor::add_selection_below);
289 cx.add_action(Editor::select_next);
290 cx.add_action(Editor::toggle_comments);
291 cx.add_action(Editor::select_larger_syntax_node);
292 cx.add_action(Editor::select_smaller_syntax_node);
293 cx.add_action(Editor::move_to_enclosing_bracket);
294 cx.add_action(Editor::undo_selection);
295 cx.add_action(Editor::redo_selection);
296 cx.add_action(Editor::go_to_next_diagnostic);
297 cx.add_action(Editor::go_to_prev_diagnostic);
298 cx.add_action(Editor::go_to_definition);
299 cx.add_action(Editor::page_up);
300 cx.add_action(Editor::page_down);
301 cx.add_action(Editor::fold);
302 cx.add_action(Editor::unfold_lines);
303 cx.add_action(Editor::fold_selected_ranges);
304 cx.add_action(Editor::show_completions);
305 cx.add_action(Editor::toggle_code_actions);
306 cx.add_action(Editor::open_excerpts);
307 cx.add_action(Editor::jump);
308 cx.add_action(Editor::restart_language_server);
309 cx.add_async_action(Editor::confirm_completion);
310 cx.add_async_action(Editor::confirm_code_action);
311 cx.add_async_action(Editor::rename);
312 cx.add_async_action(Editor::confirm_rename);
313 cx.add_async_action(Editor::find_all_references);
314
315 hover_popover::init(cx);
316
317 workspace::register_project_item::<Editor>(cx);
318 workspace::register_followable_item::<Editor>(cx);
319}
320
321trait InvalidationRegion {
322 fn ranges(&self) -> &[Range<Anchor>];
323}
324
325#[derive(Clone, Debug, PartialEq)]
326pub enum SelectPhase {
327 Begin {
328 position: DisplayPoint,
329 add: bool,
330 click_count: usize,
331 },
332 BeginColumnar {
333 position: DisplayPoint,
334 overshoot: u32,
335 },
336 Extend {
337 position: DisplayPoint,
338 click_count: usize,
339 },
340 Update {
341 position: DisplayPoint,
342 overshoot: u32,
343 scroll_position: Vector2F,
344 },
345 End,
346}
347
348#[derive(Clone, Debug)]
349pub enum SelectMode {
350 Character,
351 Word(Range<Anchor>),
352 Line(Range<Anchor>),
353 All,
354}
355
356#[derive(PartialEq, Eq)]
357pub enum Autoscroll {
358 Fit,
359 Center,
360 Newest,
361}
362
363#[derive(Copy, Clone, PartialEq, Eq)]
364pub enum EditorMode {
365 SingleLine,
366 AutoHeight { max_lines: usize },
367 Full,
368}
369
370#[derive(Clone)]
371pub enum SoftWrap {
372 None,
373 EditorWidth,
374 Column(u32),
375}
376
377#[derive(Clone)]
378pub struct EditorStyle {
379 pub text: TextStyle,
380 pub placeholder_text: Option<TextStyle>,
381 pub theme: theme::Editor,
382}
383
384type CompletionId = usize;
385
386pub type GetFieldEditorTheme = fn(&theme::Theme) -> theme::FieldEditor;
387
388type OverrideTextStyle = dyn Fn(&EditorStyle) -> Option<HighlightStyle>;
389
390pub struct Editor {
391 handle: WeakViewHandle<Self>,
392 buffer: ModelHandle<MultiBuffer>,
393 display_map: ModelHandle<DisplayMap>,
394 pub selections: SelectionsCollection,
395 columnar_selection_tail: Option<Anchor>,
396 add_selections_state: Option<AddSelectionsState>,
397 select_next_state: Option<SelectNextState>,
398 selection_history: SelectionHistory,
399 autoclose_stack: InvalidationStack<BracketPairState>,
400 snippet_stack: InvalidationStack<SnippetState>,
401 select_larger_syntax_node_stack: Vec<Box<[Selection<usize>]>>,
402 active_diagnostics: Option<ActiveDiagnosticGroup>,
403 scroll_position: Vector2F,
404 scroll_top_anchor: Anchor,
405 autoscroll_request: Option<(Autoscroll, bool)>,
406 soft_wrap_mode_override: Option<settings::SoftWrap>,
407 get_field_editor_theme: Option<GetFieldEditorTheme>,
408 override_text_style: Option<Box<OverrideTextStyle>>,
409 project: Option<ModelHandle<Project>>,
410 focused: bool,
411 show_local_cursors: bool,
412 show_local_selections: bool,
413 blink_epoch: usize,
414 blinking_paused: bool,
415 mode: EditorMode,
416 vertical_scroll_margin: f32,
417 placeholder_text: Option<Arc<str>>,
418 highlighted_rows: Option<Range<u32>>,
419 background_highlights: BTreeMap<TypeId, (fn(&Theme) -> Color, Vec<Range<Anchor>>)>,
420 nav_history: Option<ItemNavHistory>,
421 context_menu: Option<ContextMenu>,
422 completion_tasks: Vec<(CompletionId, Task<Option<()>>)>,
423 next_completion_id: CompletionId,
424 available_code_actions: Option<(ModelHandle<Buffer>, Arc<[CodeAction]>)>,
425 code_actions_task: Option<Task<()>>,
426 document_highlights_task: Option<Task<()>>,
427 pending_rename: Option<RenameState>,
428 searchable: bool,
429 cursor_shape: CursorShape,
430 keymap_context_layers: BTreeMap<TypeId, gpui::keymap::Context>,
431 input_enabled: bool,
432 leader_replica_id: Option<u16>,
433 hover_state: HoverState,
434}
435
436pub struct EditorSnapshot {
437 pub mode: EditorMode,
438 pub display_snapshot: DisplaySnapshot,
439 pub placeholder_text: Option<Arc<str>>,
440 is_focused: bool,
441 scroll_position: Vector2F,
442 scroll_top_anchor: Anchor,
443}
444
445#[derive(Clone, Debug)]
446struct SelectionHistoryEntry {
447 selections: Arc<[Selection<Anchor>]>,
448 select_next_state: Option<SelectNextState>,
449 add_selections_state: Option<AddSelectionsState>,
450}
451
452enum SelectionHistoryMode {
453 Normal,
454 Undoing,
455 Redoing,
456}
457
458impl Default for SelectionHistoryMode {
459 fn default() -> Self {
460 Self::Normal
461 }
462}
463
464#[derive(Default)]
465struct SelectionHistory {
466 selections_by_transaction:
467 HashMap<TransactionId, (Arc<[Selection<Anchor>]>, Option<Arc<[Selection<Anchor>]>>)>,
468 mode: SelectionHistoryMode,
469 undo_stack: VecDeque<SelectionHistoryEntry>,
470 redo_stack: VecDeque<SelectionHistoryEntry>,
471}
472
473impl SelectionHistory {
474 fn insert_transaction(
475 &mut self,
476 transaction_id: TransactionId,
477 selections: Arc<[Selection<Anchor>]>,
478 ) {
479 self.selections_by_transaction
480 .insert(transaction_id, (selections, None));
481 }
482
483 fn transaction(
484 &self,
485 transaction_id: TransactionId,
486 ) -> Option<&(Arc<[Selection<Anchor>]>, Option<Arc<[Selection<Anchor>]>>)> {
487 self.selections_by_transaction.get(&transaction_id)
488 }
489
490 fn transaction_mut(
491 &mut self,
492 transaction_id: TransactionId,
493 ) -> Option<&mut (Arc<[Selection<Anchor>]>, Option<Arc<[Selection<Anchor>]>>)> {
494 self.selections_by_transaction.get_mut(&transaction_id)
495 }
496
497 fn push(&mut self, entry: SelectionHistoryEntry) {
498 if !entry.selections.is_empty() {
499 match self.mode {
500 SelectionHistoryMode::Normal => {
501 self.push_undo(entry);
502 self.redo_stack.clear();
503 }
504 SelectionHistoryMode::Undoing => self.push_redo(entry),
505 SelectionHistoryMode::Redoing => self.push_undo(entry),
506 }
507 }
508 }
509
510 fn push_undo(&mut self, entry: SelectionHistoryEntry) {
511 if self
512 .undo_stack
513 .back()
514 .map_or(true, |e| e.selections != entry.selections)
515 {
516 self.undo_stack.push_back(entry);
517 if self.undo_stack.len() > MAX_SELECTION_HISTORY_LEN {
518 self.undo_stack.pop_front();
519 }
520 }
521 }
522
523 fn push_redo(&mut self, entry: SelectionHistoryEntry) {
524 if self
525 .redo_stack
526 .back()
527 .map_or(true, |e| e.selections != entry.selections)
528 {
529 self.redo_stack.push_back(entry);
530 if self.redo_stack.len() > MAX_SELECTION_HISTORY_LEN {
531 self.redo_stack.pop_front();
532 }
533 }
534 }
535}
536
537#[derive(Clone, Debug)]
538struct AddSelectionsState {
539 above: bool,
540 stack: Vec<usize>,
541}
542
543#[derive(Clone, Debug)]
544struct SelectNextState {
545 query: AhoCorasick,
546 wordwise: bool,
547 done: bool,
548}
549
550struct BracketPairState {
551 ranges: Vec<Range<Anchor>>,
552 pair: BracketPair,
553}
554
555#[derive(Debug)]
556struct SnippetState {
557 ranges: Vec<Vec<Range<Anchor>>>,
558 active_index: usize,
559}
560
561pub struct RenameState {
562 pub range: Range<Anchor>,
563 pub old_name: Arc<str>,
564 pub editor: ViewHandle<Editor>,
565 block_id: BlockId,
566}
567
568struct InvalidationStack<T>(Vec<T>);
569
570enum ContextMenu {
571 Completions(CompletionsMenu),
572 CodeActions(CodeActionsMenu),
573}
574
575impl ContextMenu {
576 fn select_prev(&mut self, cx: &mut ViewContext<Editor>) -> bool {
577 if self.visible() {
578 match self {
579 ContextMenu::Completions(menu) => menu.select_prev(cx),
580 ContextMenu::CodeActions(menu) => menu.select_prev(cx),
581 }
582 true
583 } else {
584 false
585 }
586 }
587
588 fn select_next(&mut self, cx: &mut ViewContext<Editor>) -> bool {
589 if self.visible() {
590 match self {
591 ContextMenu::Completions(menu) => menu.select_next(cx),
592 ContextMenu::CodeActions(menu) => menu.select_next(cx),
593 }
594 true
595 } else {
596 false
597 }
598 }
599
600 fn visible(&self) -> bool {
601 match self {
602 ContextMenu::Completions(menu) => menu.visible(),
603 ContextMenu::CodeActions(menu) => menu.visible(),
604 }
605 }
606
607 fn render(
608 &self,
609 cursor_position: DisplayPoint,
610 style: EditorStyle,
611 cx: &mut RenderContext<Editor>,
612 ) -> (DisplayPoint, ElementBox) {
613 match self {
614 ContextMenu::Completions(menu) => (cursor_position, menu.render(style, cx)),
615 ContextMenu::CodeActions(menu) => menu.render(cursor_position, style, cx),
616 }
617 }
618}
619
620struct CompletionsMenu {
621 id: CompletionId,
622 initial_position: Anchor,
623 buffer: ModelHandle<Buffer>,
624 completions: Arc<[Completion]>,
625 match_candidates: Vec<StringMatchCandidate>,
626 matches: Arc<[StringMatch]>,
627 selected_item: usize,
628 list: UniformListState,
629}
630
631impl CompletionsMenu {
632 fn select_prev(&mut self, cx: &mut ViewContext<Editor>) {
633 if self.selected_item > 0 {
634 self.selected_item -= 1;
635 self.list.scroll_to(ScrollTarget::Show(self.selected_item));
636 }
637 cx.notify();
638 }
639
640 fn select_next(&mut self, cx: &mut ViewContext<Editor>) {
641 if self.selected_item + 1 < self.matches.len() {
642 self.selected_item += 1;
643 self.list.scroll_to(ScrollTarget::Show(self.selected_item));
644 }
645 cx.notify();
646 }
647
648 fn visible(&self) -> bool {
649 !self.matches.is_empty()
650 }
651
652 fn render(&self, style: EditorStyle, cx: &mut RenderContext<Editor>) -> ElementBox {
653 enum CompletionTag {}
654
655 let completions = self.completions.clone();
656 let matches = self.matches.clone();
657 let selected_item = self.selected_item;
658 let container_style = style.autocomplete.container;
659 UniformList::new(
660 self.list.clone(),
661 matches.len(),
662 cx,
663 move |_, range, items, cx| {
664 let start_ix = range.start;
665 for (ix, mat) in matches[range].iter().enumerate() {
666 let completion = &completions[mat.candidate_id];
667 let item_ix = start_ix + ix;
668 items.push(
669 MouseEventHandler::new::<CompletionTag, _, _>(
670 mat.candidate_id,
671 cx,
672 |state, _| {
673 let item_style = if item_ix == selected_item {
674 style.autocomplete.selected_item
675 } else if state.hovered {
676 style.autocomplete.hovered_item
677 } else {
678 style.autocomplete.item
679 };
680
681 Text::new(completion.label.text.clone(), style.text.clone())
682 .with_soft_wrap(false)
683 .with_highlights(combine_syntax_and_fuzzy_match_highlights(
684 &completion.label.text,
685 style.text.color.into(),
686 styled_runs_for_code_label(
687 &completion.label,
688 &style.syntax,
689 ),
690 &mat.positions,
691 ))
692 .contained()
693 .with_style(item_style)
694 .boxed()
695 },
696 )
697 .with_cursor_style(CursorStyle::PointingHand)
698 .on_mouse_down(move |_, cx| {
699 cx.dispatch_action(ConfirmCompletion {
700 item_ix: Some(item_ix),
701 });
702 })
703 .boxed(),
704 );
705 }
706 },
707 )
708 .with_width_from_item(
709 self.matches
710 .iter()
711 .enumerate()
712 .max_by_key(|(_, mat)| {
713 self.completions[mat.candidate_id]
714 .label
715 .text
716 .chars()
717 .count()
718 })
719 .map(|(ix, _)| ix),
720 )
721 .contained()
722 .with_style(container_style)
723 .boxed()
724 }
725
726 pub async fn filter(&mut self, query: Option<&str>, executor: Arc<executor::Background>) {
727 let mut matches = if let Some(query) = query {
728 fuzzy::match_strings(
729 &self.match_candidates,
730 query,
731 false,
732 100,
733 &Default::default(),
734 executor,
735 )
736 .await
737 } else {
738 self.match_candidates
739 .iter()
740 .enumerate()
741 .map(|(candidate_id, candidate)| StringMatch {
742 candidate_id,
743 score: Default::default(),
744 positions: Default::default(),
745 string: candidate.string.clone(),
746 })
747 .collect()
748 };
749 matches.sort_unstable_by_key(|mat| {
750 (
751 Reverse(OrderedFloat(mat.score)),
752 self.completions[mat.candidate_id].sort_key(),
753 )
754 });
755
756 for mat in &mut matches {
757 let filter_start = self.completions[mat.candidate_id].label.filter_range.start;
758 for position in &mut mat.positions {
759 *position += filter_start;
760 }
761 }
762
763 self.matches = matches.into();
764 }
765}
766
767#[derive(Clone)]
768struct CodeActionsMenu {
769 actions: Arc<[CodeAction]>,
770 buffer: ModelHandle<Buffer>,
771 selected_item: usize,
772 list: UniformListState,
773 deployed_from_indicator: bool,
774}
775
776impl CodeActionsMenu {
777 fn select_prev(&mut self, cx: &mut ViewContext<Editor>) {
778 if self.selected_item > 0 {
779 self.selected_item -= 1;
780 cx.notify()
781 }
782 }
783
784 fn select_next(&mut self, cx: &mut ViewContext<Editor>) {
785 if self.selected_item + 1 < self.actions.len() {
786 self.selected_item += 1;
787 cx.notify()
788 }
789 }
790
791 fn visible(&self) -> bool {
792 !self.actions.is_empty()
793 }
794
795 fn render(
796 &self,
797 mut cursor_position: DisplayPoint,
798 style: EditorStyle,
799 cx: &mut RenderContext<Editor>,
800 ) -> (DisplayPoint, ElementBox) {
801 enum ActionTag {}
802
803 let container_style = style.autocomplete.container;
804 let actions = self.actions.clone();
805 let selected_item = self.selected_item;
806 let element = UniformList::new(
807 self.list.clone(),
808 actions.len(),
809 cx,
810 move |_, range, items, cx| {
811 let start_ix = range.start;
812 for (ix, action) in actions[range].iter().enumerate() {
813 let item_ix = start_ix + ix;
814 items.push(
815 MouseEventHandler::new::<ActionTag, _, _>(item_ix, cx, |state, _| {
816 let item_style = if item_ix == selected_item {
817 style.autocomplete.selected_item
818 } else if state.hovered {
819 style.autocomplete.hovered_item
820 } else {
821 style.autocomplete.item
822 };
823
824 Text::new(action.lsp_action.title.clone(), style.text.clone())
825 .with_soft_wrap(false)
826 .contained()
827 .with_style(item_style)
828 .boxed()
829 })
830 .with_cursor_style(CursorStyle::PointingHand)
831 .on_mouse_down(move |_, cx| {
832 cx.dispatch_action(ConfirmCodeAction {
833 item_ix: Some(item_ix),
834 });
835 })
836 .boxed(),
837 );
838 }
839 },
840 )
841 .with_width_from_item(
842 self.actions
843 .iter()
844 .enumerate()
845 .max_by_key(|(_, action)| action.lsp_action.title.chars().count())
846 .map(|(ix, _)| ix),
847 )
848 .contained()
849 .with_style(container_style)
850 .boxed();
851
852 if self.deployed_from_indicator {
853 *cursor_position.column_mut() = 0;
854 }
855
856 (cursor_position, element)
857 }
858}
859
860#[derive(Debug)]
861struct ActiveDiagnosticGroup {
862 primary_range: Range<Anchor>,
863 primary_message: String,
864 blocks: HashMap<BlockId, Diagnostic>,
865 is_valid: bool,
866}
867
868#[derive(Serialize, Deserialize)]
869pub struct ClipboardSelection {
870 pub len: usize,
871 pub is_entire_line: bool,
872}
873
874#[derive(Debug)]
875pub struct NavigationData {
876 // Matching offsets for anchor and scroll_top_anchor allows us to recreate the anchor if the buffer
877 // has since been closed
878 cursor_anchor: Anchor,
879 cursor_position: Point,
880 scroll_position: Vector2F,
881 scroll_top_anchor: Anchor,
882 scroll_top_row: u32,
883}
884
885pub struct EditorCreated(pub ViewHandle<Editor>);
886
887impl Editor {
888 pub fn single_line(
889 field_editor_style: Option<GetFieldEditorTheme>,
890 cx: &mut ViewContext<Self>,
891 ) -> Self {
892 let buffer = cx.add_model(|cx| Buffer::new(0, String::new(), cx));
893 let buffer = cx.add_model(|cx| MultiBuffer::singleton(buffer, cx));
894 Self::new(
895 EditorMode::SingleLine,
896 buffer,
897 None,
898 field_editor_style,
899 None,
900 cx,
901 )
902 }
903
904 pub fn auto_height(
905 max_lines: usize,
906 field_editor_style: Option<GetFieldEditorTheme>,
907 cx: &mut ViewContext<Self>,
908 ) -> Self {
909 let buffer = cx.add_model(|cx| Buffer::new(0, String::new(), cx));
910 let buffer = cx.add_model(|cx| MultiBuffer::singleton(buffer, cx));
911 Self::new(
912 EditorMode::AutoHeight { max_lines },
913 buffer,
914 None,
915 field_editor_style,
916 None,
917 cx,
918 )
919 }
920
921 pub fn for_buffer(
922 buffer: ModelHandle<Buffer>,
923 project: Option<ModelHandle<Project>>,
924 cx: &mut ViewContext<Self>,
925 ) -> Self {
926 let buffer = cx.add_model(|cx| MultiBuffer::singleton(buffer, cx));
927 Self::new(EditorMode::Full, buffer, project, None, None, cx)
928 }
929
930 pub fn for_multibuffer(
931 buffer: ModelHandle<MultiBuffer>,
932 project: Option<ModelHandle<Project>>,
933 cx: &mut ViewContext<Self>,
934 ) -> Self {
935 Self::new(EditorMode::Full, buffer, project, None, None, cx)
936 }
937
938 pub fn clone(&self, cx: &mut ViewContext<Self>) -> Self {
939 let mut clone = Self::new(
940 self.mode,
941 self.buffer.clone(),
942 self.project.clone(),
943 self.get_field_editor_theme,
944 Some(self.selections.clone()),
945 cx,
946 );
947 clone.scroll_position = self.scroll_position;
948 clone.scroll_top_anchor = self.scroll_top_anchor.clone();
949 clone.searchable = self.searchable;
950 clone
951 }
952
953 fn new(
954 mode: EditorMode,
955 buffer: ModelHandle<MultiBuffer>,
956 project: Option<ModelHandle<Project>>,
957 get_field_editor_theme: Option<GetFieldEditorTheme>,
958 selections: Option<SelectionsCollection>,
959 cx: &mut ViewContext<Self>,
960 ) -> Self {
961 let display_map = cx.add_model(|cx| {
962 let settings = cx.global::<Settings>();
963 let style = build_style(&*settings, get_field_editor_theme, None, cx);
964 DisplayMap::new(
965 buffer.clone(),
966 style.text.font_id,
967 style.text.font_size,
968 None,
969 2,
970 1,
971 cx,
972 )
973 });
974 cx.observe(&buffer, Self::on_buffer_changed).detach();
975 cx.subscribe(&buffer, Self::on_buffer_event).detach();
976 cx.observe(&display_map, Self::on_display_map_changed)
977 .detach();
978
979 let selections = selections
980 .unwrap_or_else(|| SelectionsCollection::new(display_map.clone(), buffer.clone()));
981
982 let mut this = Self {
983 handle: cx.weak_handle(),
984 buffer,
985 display_map,
986 selections,
987 columnar_selection_tail: None,
988 add_selections_state: None,
989 select_next_state: None,
990 selection_history: Default::default(),
991 autoclose_stack: Default::default(),
992 snippet_stack: Default::default(),
993 select_larger_syntax_node_stack: Vec::new(),
994 active_diagnostics: None,
995 soft_wrap_mode_override: None,
996 get_field_editor_theme,
997 project,
998 scroll_position: Vector2F::zero(),
999 scroll_top_anchor: Anchor::min(),
1000 autoscroll_request: None,
1001 focused: false,
1002 show_local_cursors: false,
1003 show_local_selections: true,
1004 blink_epoch: 0,
1005 blinking_paused: false,
1006 mode,
1007 vertical_scroll_margin: 3.0,
1008 placeholder_text: None,
1009 highlighted_rows: None,
1010 background_highlights: Default::default(),
1011 nav_history: None,
1012 context_menu: None,
1013 completion_tasks: Default::default(),
1014 next_completion_id: 0,
1015 available_code_actions: Default::default(),
1016 code_actions_task: Default::default(),
1017
1018 document_highlights_task: Default::default(),
1019 pending_rename: Default::default(),
1020 searchable: true,
1021 override_text_style: None,
1022 cursor_shape: Default::default(),
1023 keymap_context_layers: Default::default(),
1024 input_enabled: true,
1025 leader_replica_id: None,
1026 hover_state: Default::default(),
1027 };
1028 this.end_selection(cx);
1029
1030 let editor_created_event = EditorCreated(cx.handle());
1031 cx.emit_global(editor_created_event);
1032
1033 this
1034 }
1035
1036 pub fn new_file(
1037 workspace: &mut Workspace,
1038 _: &workspace::NewFile,
1039 cx: &mut ViewContext<Workspace>,
1040 ) {
1041 let project = workspace.project().clone();
1042 if project.read(cx).is_remote() {
1043 cx.propagate_action();
1044 } else if let Some(buffer) = project
1045 .update(cx, |project, cx| project.create_buffer("", None, cx))
1046 .log_err()
1047 {
1048 workspace.add_item(
1049 Box::new(cx.add_view(|cx| Editor::for_buffer(buffer, Some(project.clone()), cx))),
1050 cx,
1051 );
1052 }
1053 }
1054
1055 pub fn replica_id(&self, cx: &AppContext) -> ReplicaId {
1056 self.buffer.read(cx).replica_id()
1057 }
1058
1059 pub fn leader_replica_id(&self) -> Option<ReplicaId> {
1060 self.leader_replica_id
1061 }
1062
1063 pub fn buffer(&self) -> &ModelHandle<MultiBuffer> {
1064 &self.buffer
1065 }
1066
1067 pub fn title(&self, cx: &AppContext) -> String {
1068 self.buffer().read(cx).title(cx)
1069 }
1070
1071 pub fn snapshot(&mut self, cx: &mut MutableAppContext) -> EditorSnapshot {
1072 EditorSnapshot {
1073 mode: self.mode,
1074 display_snapshot: self.display_map.update(cx, |map, cx| map.snapshot(cx)),
1075 scroll_position: self.scroll_position,
1076 scroll_top_anchor: self.scroll_top_anchor.clone(),
1077 placeholder_text: self.placeholder_text.clone(),
1078 is_focused: self
1079 .handle
1080 .upgrade(cx)
1081 .map_or(false, |handle| handle.is_focused(cx)),
1082 }
1083 }
1084
1085 pub fn language_at<'a, T: ToOffset>(
1086 &self,
1087 point: T,
1088 cx: &'a AppContext,
1089 ) -> Option<&'a Arc<Language>> {
1090 self.buffer.read(cx).language_at(point, cx)
1091 }
1092
1093 fn style(&self, cx: &AppContext) -> EditorStyle {
1094 build_style(
1095 cx.global::<Settings>(),
1096 self.get_field_editor_theme,
1097 self.override_text_style.as_deref(),
1098 cx,
1099 )
1100 }
1101
1102 pub fn mode(&self) -> EditorMode {
1103 self.mode
1104 }
1105
1106 pub fn set_placeholder_text(
1107 &mut self,
1108 placeholder_text: impl Into<Arc<str>>,
1109 cx: &mut ViewContext<Self>,
1110 ) {
1111 self.placeholder_text = Some(placeholder_text.into());
1112 cx.notify();
1113 }
1114
1115 pub fn set_vertical_scroll_margin(&mut self, margin_rows: usize, cx: &mut ViewContext<Self>) {
1116 self.vertical_scroll_margin = margin_rows as f32;
1117 cx.notify();
1118 }
1119
1120 pub fn set_scroll_position(&mut self, scroll_position: Vector2F, cx: &mut ViewContext<Self>) {
1121 self.set_scroll_position_internal(scroll_position, true, cx);
1122 }
1123
1124 fn set_scroll_position_internal(
1125 &mut self,
1126 scroll_position: Vector2F,
1127 local: bool,
1128 cx: &mut ViewContext<Self>,
1129 ) {
1130 let map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
1131
1132 if scroll_position.y() == 0. {
1133 self.scroll_top_anchor = Anchor::min();
1134 self.scroll_position = scroll_position;
1135 } else {
1136 let scroll_top_buffer_offset =
1137 DisplayPoint::new(scroll_position.y() as u32, 0).to_offset(&map, Bias::Right);
1138 let anchor = map
1139 .buffer_snapshot
1140 .anchor_at(scroll_top_buffer_offset, Bias::Right);
1141 self.scroll_position = vec2f(
1142 scroll_position.x(),
1143 scroll_position.y() - anchor.to_display_point(&map).row() as f32,
1144 );
1145 self.scroll_top_anchor = anchor;
1146 }
1147
1148 self.autoscroll_request.take();
1149 hide_hover(self, cx);
1150
1151 cx.emit(Event::ScrollPositionChanged { local });
1152 cx.notify();
1153 }
1154
1155 fn set_scroll_top_anchor(
1156 &mut self,
1157 anchor: Anchor,
1158 position: Vector2F,
1159 cx: &mut ViewContext<Self>,
1160 ) {
1161 self.scroll_top_anchor = anchor;
1162 self.scroll_position = position;
1163 cx.emit(Event::ScrollPositionChanged { local: false });
1164 cx.notify();
1165 }
1166
1167 pub fn set_cursor_shape(&mut self, cursor_shape: CursorShape, cx: &mut ViewContext<Self>) {
1168 self.cursor_shape = cursor_shape;
1169 cx.notify();
1170 }
1171
1172 pub fn set_clip_at_line_ends(&mut self, clip: bool, cx: &mut ViewContext<Self>) {
1173 if self.display_map.read(cx).clip_at_line_ends != clip {
1174 self.display_map
1175 .update(cx, |map, _| map.clip_at_line_ends = clip);
1176 }
1177 }
1178
1179 pub fn set_keymap_context_layer<Tag: 'static>(&mut self, context: gpui::keymap::Context) {
1180 self.keymap_context_layers
1181 .insert(TypeId::of::<Tag>(), context);
1182 }
1183
1184 pub fn remove_keymap_context_layer<Tag: 'static>(&mut self) {
1185 self.keymap_context_layers.remove(&TypeId::of::<Tag>());
1186 }
1187
1188 pub fn set_input_enabled(&mut self, input_enabled: bool) {
1189 self.input_enabled = input_enabled;
1190 }
1191
1192 pub fn scroll_position(&self, cx: &mut ViewContext<Self>) -> Vector2F {
1193 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
1194 compute_scroll_position(&display_map, self.scroll_position, &self.scroll_top_anchor)
1195 }
1196
1197 pub fn clamp_scroll_left(&mut self, max: f32) -> bool {
1198 if max < self.scroll_position.x() {
1199 self.scroll_position.set_x(max);
1200 true
1201 } else {
1202 false
1203 }
1204 }
1205
1206 pub fn autoscroll_vertically(
1207 &mut self,
1208 viewport_height: f32,
1209 line_height: f32,
1210 cx: &mut ViewContext<Self>,
1211 ) -> bool {
1212 let visible_lines = viewport_height / line_height;
1213 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
1214 let mut scroll_position =
1215 compute_scroll_position(&display_map, self.scroll_position, &self.scroll_top_anchor);
1216 let max_scroll_top = if matches!(self.mode, EditorMode::AutoHeight { .. }) {
1217 (display_map.max_point().row() as f32 - visible_lines + 1.).max(0.)
1218 } else {
1219 display_map.max_point().row().saturating_sub(1) as f32
1220 };
1221 if scroll_position.y() > max_scroll_top {
1222 scroll_position.set_y(max_scroll_top);
1223 self.set_scroll_position(scroll_position, cx);
1224 }
1225
1226 let (autoscroll, local) = if let Some(autoscroll) = self.autoscroll_request.take() {
1227 autoscroll
1228 } else {
1229 return false;
1230 };
1231
1232 let first_cursor_top;
1233 let last_cursor_bottom;
1234 if let Some(highlighted_rows) = &self.highlighted_rows {
1235 first_cursor_top = highlighted_rows.start as f32;
1236 last_cursor_bottom = first_cursor_top + 1.;
1237 } else if autoscroll == Autoscroll::Newest {
1238 let newest_selection = self.selections.newest::<Point>(cx);
1239 first_cursor_top = newest_selection.head().to_display_point(&display_map).row() as f32;
1240 last_cursor_bottom = first_cursor_top + 1.;
1241 } else {
1242 let selections = self.selections.all::<Point>(cx);
1243 first_cursor_top = selections
1244 .first()
1245 .unwrap()
1246 .head()
1247 .to_display_point(&display_map)
1248 .row() as f32;
1249 last_cursor_bottom = selections
1250 .last()
1251 .unwrap()
1252 .head()
1253 .to_display_point(&display_map)
1254 .row() as f32
1255 + 1.0;
1256 }
1257
1258 let margin = if matches!(self.mode, EditorMode::AutoHeight { .. }) {
1259 0.
1260 } else {
1261 ((visible_lines - (last_cursor_bottom - first_cursor_top)) / 2.0).floor()
1262 };
1263 if margin < 0.0 {
1264 return false;
1265 }
1266
1267 match autoscroll {
1268 Autoscroll::Fit | Autoscroll::Newest => {
1269 let margin = margin.min(self.vertical_scroll_margin);
1270 let target_top = (first_cursor_top - margin).max(0.0);
1271 let target_bottom = last_cursor_bottom + margin;
1272 let start_row = scroll_position.y();
1273 let end_row = start_row + visible_lines;
1274
1275 if target_top < start_row {
1276 scroll_position.set_y(target_top);
1277 self.set_scroll_position_internal(scroll_position, local, cx);
1278 } else if target_bottom >= end_row {
1279 scroll_position.set_y(target_bottom - visible_lines);
1280 self.set_scroll_position_internal(scroll_position, local, cx);
1281 }
1282 }
1283 Autoscroll::Center => {
1284 scroll_position.set_y((first_cursor_top - margin).max(0.0));
1285 self.set_scroll_position_internal(scroll_position, local, cx);
1286 }
1287 }
1288
1289 true
1290 }
1291
1292 pub fn autoscroll_horizontally(
1293 &mut self,
1294 start_row: u32,
1295 viewport_width: f32,
1296 scroll_width: f32,
1297 max_glyph_width: f32,
1298 layouts: &[text_layout::Line],
1299 cx: &mut ViewContext<Self>,
1300 ) -> bool {
1301 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
1302 let selections = self.selections.all::<Point>(cx);
1303
1304 let mut target_left;
1305 let mut target_right;
1306
1307 if self.highlighted_rows.is_some() {
1308 target_left = 0.0_f32;
1309 target_right = 0.0_f32;
1310 } else {
1311 target_left = std::f32::INFINITY;
1312 target_right = 0.0_f32;
1313 for selection in selections {
1314 let head = selection.head().to_display_point(&display_map);
1315 if head.row() >= start_row && head.row() < start_row + layouts.len() as u32 {
1316 let start_column = head.column().saturating_sub(3);
1317 let end_column = cmp::min(display_map.line_len(head.row()), head.column() + 3);
1318 target_left = target_left.min(
1319 layouts[(head.row() - start_row) as usize]
1320 .x_for_index(start_column as usize),
1321 );
1322 target_right = target_right.max(
1323 layouts[(head.row() - start_row) as usize].x_for_index(end_column as usize)
1324 + max_glyph_width,
1325 );
1326 }
1327 }
1328 }
1329
1330 target_right = target_right.min(scroll_width);
1331
1332 if target_right - target_left > viewport_width {
1333 return false;
1334 }
1335
1336 let scroll_left = self.scroll_position.x() * max_glyph_width;
1337 let scroll_right = scroll_left + viewport_width;
1338
1339 if target_left < scroll_left {
1340 self.scroll_position.set_x(target_left / max_glyph_width);
1341 true
1342 } else if target_right > scroll_right {
1343 self.scroll_position
1344 .set_x((target_right - viewport_width) / max_glyph_width);
1345 true
1346 } else {
1347 false
1348 }
1349 }
1350
1351 fn selections_did_change(
1352 &mut self,
1353 local: bool,
1354 old_cursor_position: &Anchor,
1355 cx: &mut ViewContext<Self>,
1356 ) {
1357 if self.focused && self.leader_replica_id.is_none() {
1358 self.buffer.update(cx, |buffer, cx| {
1359 buffer.set_active_selections(
1360 &self.selections.disjoint_anchors(),
1361 self.selections.line_mode,
1362 cx,
1363 )
1364 });
1365 }
1366
1367 let display_map = self
1368 .display_map
1369 .update(cx, |display_map, cx| display_map.snapshot(cx));
1370 let buffer = &display_map.buffer_snapshot;
1371 self.add_selections_state = None;
1372 self.select_next_state = None;
1373 self.select_larger_syntax_node_stack.clear();
1374 self.autoclose_stack
1375 .invalidate(&self.selections.disjoint_anchors(), buffer);
1376 self.snippet_stack
1377 .invalidate(&self.selections.disjoint_anchors(), buffer);
1378 self.take_rename(false, cx);
1379
1380 let new_cursor_position = self.selections.newest_anchor().head();
1381
1382 self.push_to_nav_history(
1383 old_cursor_position.clone(),
1384 Some(new_cursor_position.to_point(buffer)),
1385 cx,
1386 );
1387
1388 if local {
1389 let new_cursor_position = self.selections.newest_anchor().head();
1390 let completion_menu = match self.context_menu.as_mut() {
1391 Some(ContextMenu::Completions(menu)) => Some(menu),
1392 _ => {
1393 self.context_menu.take();
1394 None
1395 }
1396 };
1397
1398 if let Some(completion_menu) = completion_menu {
1399 let cursor_position = new_cursor_position.to_offset(buffer);
1400 let (word_range, kind) =
1401 buffer.surrounding_word(completion_menu.initial_position.clone());
1402 if kind == Some(CharKind::Word)
1403 && word_range.to_inclusive().contains(&cursor_position)
1404 {
1405 let query = Self::completion_query(buffer, cursor_position);
1406 cx.background()
1407 .block(completion_menu.filter(query.as_deref(), cx.background().clone()));
1408 self.show_completions(&ShowCompletions, cx);
1409 } else {
1410 self.hide_context_menu(cx);
1411 }
1412 }
1413
1414 hide_hover(self, cx);
1415
1416 if old_cursor_position.to_display_point(&display_map).row()
1417 != new_cursor_position.to_display_point(&display_map).row()
1418 {
1419 self.available_code_actions.take();
1420 }
1421 self.refresh_code_actions(cx);
1422 self.refresh_document_highlights(cx);
1423 }
1424
1425 self.pause_cursor_blinking(cx);
1426 cx.emit(Event::SelectionsChanged { local });
1427 cx.notify();
1428 }
1429
1430 pub fn change_selections<R>(
1431 &mut self,
1432 autoscroll: Option<Autoscroll>,
1433 cx: &mut ViewContext<Self>,
1434 change: impl FnOnce(&mut MutableSelectionsCollection<'_>) -> R,
1435 ) -> R {
1436 let old_cursor_position = self.selections.newest_anchor().head();
1437 self.push_to_selection_history();
1438
1439 let (changed, result) = self.selections.change_with(cx, change);
1440
1441 if changed {
1442 if let Some(autoscroll) = autoscroll {
1443 self.request_autoscroll(autoscroll, cx);
1444 }
1445 self.selections_did_change(true, &old_cursor_position, cx);
1446 }
1447
1448 result
1449 }
1450
1451 pub fn edit<I, S, T>(&mut self, edits: I, cx: &mut ViewContext<Self>)
1452 where
1453 I: IntoIterator<Item = (Range<S>, T)>,
1454 S: ToOffset,
1455 T: Into<Arc<str>>,
1456 {
1457 self.buffer.update(cx, |buffer, cx| buffer.edit(edits, cx));
1458 }
1459
1460 pub fn edit_with_autoindent<I, S, T>(&mut self, edits: I, cx: &mut ViewContext<Self>)
1461 where
1462 I: IntoIterator<Item = (Range<S>, T)>,
1463 S: ToOffset,
1464 T: Into<Arc<str>>,
1465 {
1466 self.buffer
1467 .update(cx, |buffer, cx| buffer.edit_with_autoindent(edits, cx));
1468 }
1469
1470 fn select(&mut self, Select(phase): &Select, cx: &mut ViewContext<Self>) {
1471 self.hide_context_menu(cx);
1472
1473 match phase {
1474 SelectPhase::Begin {
1475 position,
1476 add,
1477 click_count,
1478 } => self.begin_selection(*position, *add, *click_count, cx),
1479 SelectPhase::BeginColumnar {
1480 position,
1481 overshoot,
1482 } => self.begin_columnar_selection(*position, *overshoot, cx),
1483 SelectPhase::Extend {
1484 position,
1485 click_count,
1486 } => self.extend_selection(*position, *click_count, cx),
1487 SelectPhase::Update {
1488 position,
1489 overshoot,
1490 scroll_position,
1491 } => self.update_selection(*position, *overshoot, *scroll_position, cx),
1492 SelectPhase::End => self.end_selection(cx),
1493 }
1494 }
1495
1496 fn extend_selection(
1497 &mut self,
1498 position: DisplayPoint,
1499 click_count: usize,
1500 cx: &mut ViewContext<Self>,
1501 ) {
1502 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
1503 let tail = self.selections.newest::<usize>(cx).tail();
1504 self.begin_selection(position, false, click_count, cx);
1505
1506 let position = position.to_offset(&display_map, Bias::Left);
1507 let tail_anchor = display_map.buffer_snapshot.anchor_before(tail);
1508
1509 let mut pending_selection = self
1510 .selections
1511 .pending_anchor()
1512 .expect("extend_selection not called with pending selection");
1513 if position >= tail {
1514 pending_selection.start = tail_anchor.clone();
1515 } else {
1516 pending_selection.end = tail_anchor.clone();
1517 pending_selection.reversed = true;
1518 }
1519
1520 let mut pending_mode = self.selections.pending_mode().unwrap();
1521 match &mut pending_mode {
1522 SelectMode::Word(range) | SelectMode::Line(range) => {
1523 *range = tail_anchor.clone()..tail_anchor
1524 }
1525 _ => {}
1526 }
1527
1528 self.change_selections(Some(Autoscroll::Fit), cx, |s| {
1529 s.set_pending(pending_selection, pending_mode)
1530 });
1531 }
1532
1533 fn begin_selection(
1534 &mut self,
1535 position: DisplayPoint,
1536 add: bool,
1537 click_count: usize,
1538 cx: &mut ViewContext<Self>,
1539 ) {
1540 if !self.focused {
1541 cx.focus_self();
1542 cx.emit(Event::Activate);
1543 }
1544
1545 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
1546 let buffer = &display_map.buffer_snapshot;
1547 let newest_selection = self.selections.newest_anchor().clone();
1548 let position = display_map.clip_point(position, Bias::Left);
1549
1550 let start;
1551 let end;
1552 let mode;
1553 match click_count {
1554 1 => {
1555 start = buffer.anchor_before(position.to_point(&display_map));
1556 end = start.clone();
1557 mode = SelectMode::Character;
1558 }
1559 2 => {
1560 let range = movement::surrounding_word(&display_map, position);
1561 start = buffer.anchor_before(range.start.to_point(&display_map));
1562 end = buffer.anchor_before(range.end.to_point(&display_map));
1563 mode = SelectMode::Word(start.clone()..end.clone());
1564 }
1565 3 => {
1566 let position = display_map
1567 .clip_point(position, Bias::Left)
1568 .to_point(&display_map);
1569 let line_start = display_map.prev_line_boundary(position).0;
1570 let next_line_start = buffer.clip_point(
1571 display_map.next_line_boundary(position).0 + Point::new(1, 0),
1572 Bias::Left,
1573 );
1574 start = buffer.anchor_before(line_start);
1575 end = buffer.anchor_before(next_line_start);
1576 mode = SelectMode::Line(start.clone()..end.clone());
1577 }
1578 _ => {
1579 start = buffer.anchor_before(0);
1580 end = buffer.anchor_before(buffer.len());
1581 mode = SelectMode::All;
1582 }
1583 }
1584
1585 self.change_selections(Some(Autoscroll::Fit), cx, |s| {
1586 if !add {
1587 s.clear_disjoint();
1588 } else if click_count > 1 {
1589 s.delete(newest_selection.id)
1590 }
1591
1592 s.set_pending_range(start..end, mode);
1593 });
1594 }
1595
1596 fn begin_columnar_selection(
1597 &mut self,
1598 position: DisplayPoint,
1599 overshoot: u32,
1600 cx: &mut ViewContext<Self>,
1601 ) {
1602 if !self.focused {
1603 cx.focus_self();
1604 cx.emit(Event::Activate);
1605 }
1606
1607 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
1608 let tail = self.selections.newest::<Point>(cx).tail();
1609 self.columnar_selection_tail = Some(display_map.buffer_snapshot.anchor_before(tail));
1610
1611 self.select_columns(
1612 tail.to_display_point(&display_map),
1613 position,
1614 overshoot,
1615 &display_map,
1616 cx,
1617 );
1618 }
1619
1620 fn update_selection(
1621 &mut self,
1622 position: DisplayPoint,
1623 overshoot: u32,
1624 scroll_position: Vector2F,
1625 cx: &mut ViewContext<Self>,
1626 ) {
1627 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
1628
1629 if let Some(tail) = self.columnar_selection_tail.as_ref() {
1630 let tail = tail.to_display_point(&display_map);
1631 self.select_columns(tail, position, overshoot, &display_map, cx);
1632 } else if let Some(mut pending) = self.selections.pending_anchor().clone() {
1633 let buffer = self.buffer.read(cx).snapshot(cx);
1634 let head;
1635 let tail;
1636 let mode = self.selections.pending_mode().unwrap();
1637 match &mode {
1638 SelectMode::Character => {
1639 head = position.to_point(&display_map);
1640 tail = pending.tail().to_point(&buffer);
1641 }
1642 SelectMode::Word(original_range) => {
1643 let original_display_range = original_range.start.to_display_point(&display_map)
1644 ..original_range.end.to_display_point(&display_map);
1645 let original_buffer_range = original_display_range.start.to_point(&display_map)
1646 ..original_display_range.end.to_point(&display_map);
1647 if movement::is_inside_word(&display_map, position)
1648 || original_display_range.contains(&position)
1649 {
1650 let word_range = movement::surrounding_word(&display_map, position);
1651 if word_range.start < original_display_range.start {
1652 head = word_range.start.to_point(&display_map);
1653 } else {
1654 head = word_range.end.to_point(&display_map);
1655 }
1656 } else {
1657 head = position.to_point(&display_map);
1658 }
1659
1660 if head <= original_buffer_range.start {
1661 tail = original_buffer_range.end;
1662 } else {
1663 tail = original_buffer_range.start;
1664 }
1665 }
1666 SelectMode::Line(original_range) => {
1667 let original_range = original_range.to_point(&display_map.buffer_snapshot);
1668
1669 let position = display_map
1670 .clip_point(position, Bias::Left)
1671 .to_point(&display_map);
1672 let line_start = display_map.prev_line_boundary(position).0;
1673 let next_line_start = buffer.clip_point(
1674 display_map.next_line_boundary(position).0 + Point::new(1, 0),
1675 Bias::Left,
1676 );
1677
1678 if line_start < original_range.start {
1679 head = line_start
1680 } else {
1681 head = next_line_start
1682 }
1683
1684 if head <= original_range.start {
1685 tail = original_range.end;
1686 } else {
1687 tail = original_range.start;
1688 }
1689 }
1690 SelectMode::All => {
1691 return;
1692 }
1693 };
1694
1695 if head < tail {
1696 pending.start = buffer.anchor_before(head);
1697 pending.end = buffer.anchor_before(tail);
1698 pending.reversed = true;
1699 } else {
1700 pending.start = buffer.anchor_before(tail);
1701 pending.end = buffer.anchor_before(head);
1702 pending.reversed = false;
1703 }
1704
1705 self.change_selections(None, cx, |s| {
1706 s.set_pending(pending, mode);
1707 });
1708 } else {
1709 log::error!("update_selection dispatched with no pending selection");
1710 return;
1711 }
1712
1713 self.set_scroll_position(scroll_position, cx);
1714 cx.notify();
1715 }
1716
1717 fn end_selection(&mut self, cx: &mut ViewContext<Self>) {
1718 self.columnar_selection_tail.take();
1719 if self.selections.pending_anchor().is_some() {
1720 let selections = self.selections.all::<usize>(cx);
1721 self.change_selections(None, cx, |s| {
1722 s.select(selections);
1723 s.clear_pending();
1724 });
1725 }
1726 }
1727
1728 fn select_columns(
1729 &mut self,
1730 tail: DisplayPoint,
1731 head: DisplayPoint,
1732 overshoot: u32,
1733 display_map: &DisplaySnapshot,
1734 cx: &mut ViewContext<Self>,
1735 ) {
1736 let start_row = cmp::min(tail.row(), head.row());
1737 let end_row = cmp::max(tail.row(), head.row());
1738 let start_column = cmp::min(tail.column(), head.column() + overshoot);
1739 let end_column = cmp::max(tail.column(), head.column() + overshoot);
1740 let reversed = start_column < tail.column();
1741
1742 let selection_ranges = (start_row..=end_row)
1743 .filter_map(|row| {
1744 if start_column <= display_map.line_len(row) && !display_map.is_block_line(row) {
1745 let start = display_map
1746 .clip_point(DisplayPoint::new(row, start_column), Bias::Left)
1747 .to_point(&display_map);
1748 let end = display_map
1749 .clip_point(DisplayPoint::new(row, end_column), Bias::Right)
1750 .to_point(&display_map);
1751 if reversed {
1752 Some(end..start)
1753 } else {
1754 Some(start..end)
1755 }
1756 } else {
1757 None
1758 }
1759 })
1760 .collect::<Vec<_>>();
1761
1762 self.change_selections(None, cx, |s| {
1763 s.select_ranges(selection_ranges);
1764 });
1765 cx.notify();
1766 }
1767
1768 pub fn is_selecting(&self) -> bool {
1769 self.selections.pending_anchor().is_some() || self.columnar_selection_tail.is_some()
1770 }
1771
1772 pub fn cancel(&mut self, _: &Cancel, cx: &mut ViewContext<Self>) {
1773 if self.take_rename(false, cx).is_some() {
1774 return;
1775 }
1776
1777 if hide_hover(self, cx) {
1778 return;
1779 }
1780
1781 if self.hide_context_menu(cx).is_some() {
1782 return;
1783 }
1784
1785 if self.snippet_stack.pop().is_some() {
1786 return;
1787 }
1788
1789 if self.mode == EditorMode::Full {
1790 if self.active_diagnostics.is_some() {
1791 self.dismiss_diagnostics(cx);
1792 return;
1793 }
1794
1795 if self.change_selections(Some(Autoscroll::Fit), cx, |s| s.try_cancel()) {
1796 return;
1797 }
1798 }
1799
1800 cx.propagate_action();
1801 }
1802
1803 pub fn handle_input(&mut self, action: &Input, cx: &mut ViewContext<Self>) {
1804 if !self.input_enabled {
1805 cx.propagate_action();
1806 return;
1807 }
1808
1809 let text = action.0.as_ref();
1810 if !self.skip_autoclose_end(text, cx) {
1811 self.transact(cx, |this, cx| {
1812 if !this.surround_with_bracket_pair(text, cx) {
1813 this.insert(text, cx);
1814 this.autoclose_bracket_pairs(cx);
1815 }
1816 });
1817 self.trigger_completion_on_input(text, cx);
1818 }
1819 }
1820
1821 pub fn newline(&mut self, _: &Newline, cx: &mut ViewContext<Self>) {
1822 self.transact(cx, |this, cx| {
1823 let (edits, selection_fixup_info): (Vec<_>, Vec<_>) = {
1824 let selections = this.selections.all::<usize>(cx);
1825
1826 let buffer = this.buffer.read(cx).snapshot(cx);
1827 selections
1828 .iter()
1829 .map(|selection| {
1830 let start_point = selection.start.to_point(&buffer);
1831 let mut indent = buffer.indent_size_for_line(start_point.row);
1832 indent.len = cmp::min(indent.len, start_point.column);
1833 let start = selection.start;
1834 let end = selection.end;
1835
1836 let mut insert_extra_newline = false;
1837 if let Some(language) = buffer.language() {
1838 let leading_whitespace_len = buffer
1839 .reversed_chars_at(start)
1840 .take_while(|c| c.is_whitespace() && *c != '\n')
1841 .map(|c| c.len_utf8())
1842 .sum::<usize>();
1843
1844 let trailing_whitespace_len = buffer
1845 .chars_at(end)
1846 .take_while(|c| c.is_whitespace() && *c != '\n')
1847 .map(|c| c.len_utf8())
1848 .sum::<usize>();
1849
1850 insert_extra_newline = language.brackets().iter().any(|pair| {
1851 let pair_start = pair.start.trim_end();
1852 let pair_end = pair.end.trim_start();
1853
1854 pair.newline
1855 && buffer
1856 .contains_str_at(end + trailing_whitespace_len, pair_end)
1857 && buffer.contains_str_at(
1858 (start - leading_whitespace_len)
1859 .saturating_sub(pair_start.len()),
1860 pair_start,
1861 )
1862 });
1863 }
1864
1865 let mut new_text = String::with_capacity(1 + indent.len as usize);
1866 new_text.push('\n');
1867 new_text.extend(indent.chars());
1868 if insert_extra_newline {
1869 new_text = new_text.repeat(2);
1870 }
1871
1872 let anchor = buffer.anchor_after(end);
1873 let new_selection = selection.map(|_| anchor.clone());
1874 (
1875 (start..end, new_text),
1876 (insert_extra_newline, new_selection),
1877 )
1878 })
1879 .unzip()
1880 };
1881
1882 this.buffer.update(cx, |buffer, cx| {
1883 buffer.edit_with_autoindent(edits, cx);
1884 });
1885 let buffer = this.buffer.read(cx).snapshot(cx);
1886 let new_selections = selection_fixup_info
1887 .into_iter()
1888 .map(|(extra_newline_inserted, new_selection)| {
1889 let mut cursor = new_selection.end.to_point(&buffer);
1890 if extra_newline_inserted {
1891 cursor.row -= 1;
1892 cursor.column = buffer.line_len(cursor.row);
1893 }
1894 new_selection.map(|_| cursor.clone())
1895 })
1896 .collect();
1897
1898 this.change_selections(Some(Autoscroll::Fit), cx, |s| s.select(new_selections));
1899 });
1900 }
1901
1902 pub fn insert(&mut self, text: &str, cx: &mut ViewContext<Self>) {
1903 let text: Arc<str> = text.into();
1904 self.transact(cx, |this, cx| {
1905 let old_selections = this.selections.all_adjusted(cx);
1906 let selection_anchors = this.buffer.update(cx, |buffer, cx| {
1907 let anchors = {
1908 let snapshot = buffer.read(cx);
1909 old_selections
1910 .iter()
1911 .map(|s| {
1912 let anchor = snapshot.anchor_after(s.end);
1913 s.map(|_| anchor.clone())
1914 })
1915 .collect::<Vec<_>>()
1916 };
1917 buffer.edit_with_autoindent(
1918 old_selections
1919 .iter()
1920 .map(|s| (s.start..s.end, text.clone())),
1921 cx,
1922 );
1923 anchors
1924 });
1925
1926 this.change_selections(Some(Autoscroll::Fit), cx, |s| {
1927 s.select_anchors(selection_anchors);
1928 })
1929 });
1930 }
1931
1932 fn trigger_completion_on_input(&mut self, text: &str, cx: &mut ViewContext<Self>) {
1933 let selection = self.selections.newest_anchor();
1934 if self
1935 .buffer
1936 .read(cx)
1937 .is_completion_trigger(selection.head(), text, cx)
1938 {
1939 self.show_completions(&ShowCompletions, cx);
1940 } else {
1941 self.hide_context_menu(cx);
1942 }
1943 }
1944
1945 fn surround_with_bracket_pair(&mut self, text: &str, cx: &mut ViewContext<Self>) -> bool {
1946 let snapshot = self.buffer.read(cx).snapshot(cx);
1947 if let Some(pair) = snapshot
1948 .language()
1949 .and_then(|language| language.brackets().iter().find(|b| b.start == text))
1950 .cloned()
1951 {
1952 if self
1953 .selections
1954 .all::<usize>(cx)
1955 .iter()
1956 .any(|selection| selection.is_empty())
1957 {
1958 return false;
1959 }
1960
1961 let mut selections = self.selections.disjoint_anchors().to_vec();
1962 for selection in &mut selections {
1963 selection.end = selection.end.bias_left(&snapshot);
1964 }
1965 drop(snapshot);
1966
1967 self.buffer.update(cx, |buffer, cx| {
1968 let pair_start: Arc<str> = pair.start.clone().into();
1969 let pair_end: Arc<str> = pair.end.clone().into();
1970 buffer.edit(
1971 selections
1972 .iter()
1973 .map(|s| (s.start.clone()..s.start.clone(), pair_start.clone()))
1974 .chain(
1975 selections
1976 .iter()
1977 .map(|s| (s.end.clone()..s.end.clone(), pair_end.clone())),
1978 ),
1979 cx,
1980 );
1981 });
1982
1983 let snapshot = self.buffer.read(cx).read(cx);
1984 for selection in &mut selections {
1985 selection.end = selection.end.bias_right(&snapshot);
1986 }
1987 drop(snapshot);
1988
1989 self.change_selections(None, cx, |s| s.select_anchors(selections));
1990 true
1991 } else {
1992 false
1993 }
1994 }
1995
1996 fn autoclose_bracket_pairs(&mut self, cx: &mut ViewContext<Self>) {
1997 let selections = self.selections.all::<usize>(cx);
1998 let mut bracket_pair_state = None;
1999 let mut new_selections = None;
2000 self.buffer.update(cx, |buffer, cx| {
2001 let mut snapshot = buffer.snapshot(cx);
2002 let left_biased_selections = selections
2003 .iter()
2004 .map(|selection| selection.map(|p| snapshot.anchor_before(p)))
2005 .collect::<Vec<_>>();
2006
2007 let autoclose_pair = snapshot.language().and_then(|language| {
2008 let first_selection_start = selections.first().unwrap().start;
2009 let pair = language.brackets().iter().find(|pair| {
2010 snapshot.contains_str_at(
2011 first_selection_start.saturating_sub(pair.start.len()),
2012 &pair.start,
2013 )
2014 });
2015 pair.and_then(|pair| {
2016 let should_autoclose = selections.iter().all(|selection| {
2017 // Ensure all selections are parked at the end of a pair start.
2018 if snapshot.contains_str_at(
2019 selection.start.saturating_sub(pair.start.len()),
2020 &pair.start,
2021 ) {
2022 snapshot
2023 .chars_at(selection.start)
2024 .next()
2025 .map_or(true, |c| language.should_autoclose_before(c))
2026 } else {
2027 false
2028 }
2029 });
2030
2031 if should_autoclose {
2032 Some(pair.clone())
2033 } else {
2034 None
2035 }
2036 })
2037 });
2038
2039 if let Some(pair) = autoclose_pair {
2040 let selection_ranges = selections
2041 .iter()
2042 .map(|selection| {
2043 let start = selection.start.to_offset(&snapshot);
2044 start..start
2045 })
2046 .collect::<SmallVec<[_; 32]>>();
2047
2048 let pair_end: Arc<str> = pair.end.clone().into();
2049 buffer.edit(
2050 selection_ranges
2051 .iter()
2052 .map(|range| (range.clone(), pair_end.clone())),
2053 cx,
2054 );
2055 snapshot = buffer.snapshot(cx);
2056
2057 new_selections = Some(
2058 resolve_multiple::<usize, _>(left_biased_selections.iter(), &snapshot)
2059 .collect::<Vec<_>>(),
2060 );
2061
2062 if pair.end.len() == 1 {
2063 let mut delta = 0;
2064 bracket_pair_state = Some(BracketPairState {
2065 ranges: selections
2066 .iter()
2067 .map(move |selection| {
2068 let offset = selection.start + delta;
2069 delta += 1;
2070 snapshot.anchor_before(offset)..snapshot.anchor_after(offset)
2071 })
2072 .collect(),
2073 pair,
2074 });
2075 }
2076 }
2077 });
2078
2079 if let Some(new_selections) = new_selections {
2080 self.change_selections(None, cx, |s| {
2081 s.select(new_selections);
2082 });
2083 }
2084 if let Some(bracket_pair_state) = bracket_pair_state {
2085 self.autoclose_stack.push(bracket_pair_state);
2086 }
2087 }
2088
2089 fn skip_autoclose_end(&mut self, text: &str, cx: &mut ViewContext<Self>) -> bool {
2090 let buffer = self.buffer.read(cx).snapshot(cx);
2091 let old_selections = self.selections.all::<usize>(cx);
2092 let autoclose_pair = if let Some(autoclose_pair) = self.autoclose_stack.last() {
2093 autoclose_pair
2094 } else {
2095 return false;
2096 };
2097 if text != autoclose_pair.pair.end {
2098 return false;
2099 }
2100
2101 debug_assert_eq!(old_selections.len(), autoclose_pair.ranges.len());
2102
2103 if old_selections
2104 .iter()
2105 .zip(autoclose_pair.ranges.iter().map(|r| r.to_offset(&buffer)))
2106 .all(|(selection, autoclose_range)| {
2107 let autoclose_range_end = autoclose_range.end.to_offset(&buffer);
2108 selection.is_empty() && selection.start == autoclose_range_end
2109 })
2110 {
2111 let new_selections = old_selections
2112 .into_iter()
2113 .map(|selection| {
2114 let cursor = selection.start + 1;
2115 Selection {
2116 id: selection.id,
2117 start: cursor,
2118 end: cursor,
2119 reversed: false,
2120 goal: SelectionGoal::None,
2121 }
2122 })
2123 .collect();
2124 self.autoclose_stack.pop();
2125 self.change_selections(Some(Autoscroll::Fit), cx, |s| {
2126 s.select(new_selections);
2127 });
2128 true
2129 } else {
2130 false
2131 }
2132 }
2133
2134 fn completion_query(buffer: &MultiBufferSnapshot, position: impl ToOffset) -> Option<String> {
2135 let offset = position.to_offset(buffer);
2136 let (word_range, kind) = buffer.surrounding_word(offset);
2137 if offset > word_range.start && kind == Some(CharKind::Word) {
2138 Some(
2139 buffer
2140 .text_for_range(word_range.start..offset)
2141 .collect::<String>(),
2142 )
2143 } else {
2144 None
2145 }
2146 }
2147
2148 fn show_completions(&mut self, _: &ShowCompletions, cx: &mut ViewContext<Self>) {
2149 if self.pending_rename.is_some() {
2150 return;
2151 }
2152
2153 let project = if let Some(project) = self.project.clone() {
2154 project
2155 } else {
2156 return;
2157 };
2158
2159 let position = self.selections.newest_anchor().head();
2160 let (buffer, buffer_position) = if let Some(output) = self
2161 .buffer
2162 .read(cx)
2163 .text_anchor_for_position(position.clone(), cx)
2164 {
2165 output
2166 } else {
2167 return;
2168 };
2169
2170 let query = Self::completion_query(&self.buffer.read(cx).read(cx), position.clone());
2171 let completions = project.update(cx, |project, cx| {
2172 project.completions(&buffer, buffer_position.clone(), cx)
2173 });
2174
2175 let id = post_inc(&mut self.next_completion_id);
2176 let task = cx.spawn_weak(|this, mut cx| {
2177 async move {
2178 let completions = completions.await?;
2179 if completions.is_empty() {
2180 return Ok(());
2181 }
2182
2183 let mut menu = CompletionsMenu {
2184 id,
2185 initial_position: position,
2186 match_candidates: completions
2187 .iter()
2188 .enumerate()
2189 .map(|(id, completion)| {
2190 StringMatchCandidate::new(
2191 id,
2192 completion.label.text[completion.label.filter_range.clone()].into(),
2193 )
2194 })
2195 .collect(),
2196 buffer,
2197 completions: completions.into(),
2198 matches: Vec::new().into(),
2199 selected_item: 0,
2200 list: Default::default(),
2201 };
2202
2203 menu.filter(query.as_deref(), cx.background()).await;
2204
2205 if let Some(this) = this.upgrade(&cx) {
2206 this.update(&mut cx, |this, cx| {
2207 match this.context_menu.as_ref() {
2208 None => {}
2209 Some(ContextMenu::Completions(prev_menu)) => {
2210 if prev_menu.id > menu.id {
2211 return;
2212 }
2213 }
2214 _ => return,
2215 }
2216
2217 this.completion_tasks.retain(|(id, _)| *id > menu.id);
2218 if this.focused {
2219 this.show_context_menu(ContextMenu::Completions(menu), cx);
2220 }
2221
2222 cx.notify();
2223 });
2224 }
2225 Ok::<_, anyhow::Error>(())
2226 }
2227 .log_err()
2228 });
2229 self.completion_tasks.push((id, task));
2230 }
2231
2232 pub fn confirm_completion(
2233 &mut self,
2234 action: &ConfirmCompletion,
2235 cx: &mut ViewContext<Self>,
2236 ) -> Option<Task<Result<()>>> {
2237 use language::ToOffset as _;
2238
2239 let completions_menu = if let ContextMenu::Completions(menu) = self.hide_context_menu(cx)? {
2240 menu
2241 } else {
2242 return None;
2243 };
2244
2245 let mat = completions_menu
2246 .matches
2247 .get(action.item_ix.unwrap_or(completions_menu.selected_item))?;
2248 let buffer_handle = completions_menu.buffer;
2249 let completion = completions_menu.completions.get(mat.candidate_id)?;
2250
2251 let snippet;
2252 let text;
2253 if completion.is_snippet() {
2254 snippet = Some(Snippet::parse(&completion.new_text).log_err()?);
2255 text = snippet.as_ref().unwrap().text.clone();
2256 } else {
2257 snippet = None;
2258 text = completion.new_text.clone();
2259 };
2260 let selections = self.selections.all::<usize>(cx);
2261 let buffer = buffer_handle.read(cx);
2262 let old_range = completion.old_range.to_offset(&buffer);
2263 let old_text = buffer.text_for_range(old_range.clone()).collect::<String>();
2264
2265 let newest_selection = self.selections.newest_anchor();
2266 if newest_selection.start.buffer_id != Some(buffer_handle.id()) {
2267 return None;
2268 }
2269
2270 let lookbehind = newest_selection
2271 .start
2272 .text_anchor
2273 .to_offset(buffer)
2274 .saturating_sub(old_range.start);
2275 let lookahead = old_range
2276 .end
2277 .saturating_sub(newest_selection.end.text_anchor.to_offset(buffer));
2278 let mut common_prefix_len = old_text
2279 .bytes()
2280 .zip(text.bytes())
2281 .take_while(|(a, b)| a == b)
2282 .count();
2283
2284 let snapshot = self.buffer.read(cx).snapshot(cx);
2285 let mut ranges = Vec::new();
2286 for selection in &selections {
2287 if snapshot.contains_str_at(selection.start.saturating_sub(lookbehind), &old_text) {
2288 let start = selection.start.saturating_sub(lookbehind);
2289 let end = selection.end + lookahead;
2290 ranges.push(start + common_prefix_len..end);
2291 } else {
2292 common_prefix_len = 0;
2293 ranges.clear();
2294 ranges.extend(selections.iter().map(|s| {
2295 if s.id == newest_selection.id {
2296 old_range.clone()
2297 } else {
2298 s.start..s.end
2299 }
2300 }));
2301 break;
2302 }
2303 }
2304 let text = &text[common_prefix_len..];
2305
2306 self.transact(cx, |this, cx| {
2307 if let Some(mut snippet) = snippet {
2308 snippet.text = text.to_string();
2309 for tabstop in snippet.tabstops.iter_mut().flatten() {
2310 tabstop.start -= common_prefix_len as isize;
2311 tabstop.end -= common_prefix_len as isize;
2312 }
2313
2314 this.insert_snippet(&ranges, snippet, cx).log_err();
2315 } else {
2316 this.buffer.update(cx, |buffer, cx| {
2317 buffer
2318 .edit_with_autoindent(ranges.iter().map(|range| (range.clone(), text)), cx);
2319 });
2320 }
2321 });
2322
2323 let project = self.project.clone()?;
2324 let apply_edits = project.update(cx, |project, cx| {
2325 project.apply_additional_edits_for_completion(
2326 buffer_handle,
2327 completion.clone(),
2328 true,
2329 cx,
2330 )
2331 });
2332 Some(cx.foreground().spawn(async move {
2333 apply_edits.await?;
2334 Ok(())
2335 }))
2336 }
2337
2338 pub fn toggle_code_actions(&mut self, action: &ToggleCodeActions, cx: &mut ViewContext<Self>) {
2339 if matches!(
2340 self.context_menu.as_ref(),
2341 Some(ContextMenu::CodeActions(_))
2342 ) {
2343 self.context_menu.take();
2344 cx.notify();
2345 return;
2346 }
2347
2348 let deployed_from_indicator = action.deployed_from_indicator;
2349 let mut task = self.code_actions_task.take();
2350 cx.spawn_weak(|this, mut cx| async move {
2351 while let Some(prev_task) = task {
2352 prev_task.await;
2353 task = this
2354 .upgrade(&cx)
2355 .and_then(|this| this.update(&mut cx, |this, _| this.code_actions_task.take()));
2356 }
2357
2358 if let Some(this) = this.upgrade(&cx) {
2359 this.update(&mut cx, |this, cx| {
2360 if this.focused {
2361 if let Some((buffer, actions)) = this.available_code_actions.clone() {
2362 this.show_context_menu(
2363 ContextMenu::CodeActions(CodeActionsMenu {
2364 buffer,
2365 actions,
2366 selected_item: Default::default(),
2367 list: Default::default(),
2368 deployed_from_indicator,
2369 }),
2370 cx,
2371 );
2372 }
2373 }
2374 })
2375 }
2376 Ok::<_, anyhow::Error>(())
2377 })
2378 .detach_and_log_err(cx);
2379 }
2380
2381 pub fn confirm_code_action(
2382 workspace: &mut Workspace,
2383 action: &ConfirmCodeAction,
2384 cx: &mut ViewContext<Workspace>,
2385 ) -> Option<Task<Result<()>>> {
2386 let editor = workspace.active_item(cx)?.act_as::<Editor>(cx)?;
2387 let actions_menu = if let ContextMenu::CodeActions(menu) =
2388 editor.update(cx, |editor, cx| editor.hide_context_menu(cx))?
2389 {
2390 menu
2391 } else {
2392 return None;
2393 };
2394 let action_ix = action.item_ix.unwrap_or(actions_menu.selected_item);
2395 let action = actions_menu.actions.get(action_ix)?.clone();
2396 let title = action.lsp_action.title.clone();
2397 let buffer = actions_menu.buffer;
2398
2399 let apply_code_actions = workspace.project().clone().update(cx, |project, cx| {
2400 project.apply_code_action(buffer, action, true, cx)
2401 });
2402 Some(cx.spawn(|workspace, cx| async move {
2403 let project_transaction = apply_code_actions.await?;
2404 Self::open_project_transaction(editor, workspace, project_transaction, title, cx).await
2405 }))
2406 }
2407
2408 async fn open_project_transaction(
2409 this: ViewHandle<Editor>,
2410 workspace: ViewHandle<Workspace>,
2411 transaction: ProjectTransaction,
2412 title: String,
2413 mut cx: AsyncAppContext,
2414 ) -> Result<()> {
2415 let replica_id = this.read_with(&cx, |this, cx| this.replica_id(cx));
2416
2417 let mut entries = transaction.0.into_iter().collect::<Vec<_>>();
2418 entries.sort_unstable_by_key(|(buffer, _)| {
2419 buffer.read_with(&cx, |buffer, _| buffer.file().map(|f| f.path().clone()))
2420 });
2421
2422 // If the project transaction's edits are all contained within this editor, then
2423 // avoid opening a new editor to display them.
2424
2425 if let Some((buffer, transaction)) = entries.first() {
2426 if entries.len() == 1 {
2427 let excerpt = this.read_with(&cx, |editor, cx| {
2428 editor
2429 .buffer()
2430 .read(cx)
2431 .excerpt_containing(editor.selections.newest_anchor().head(), cx)
2432 });
2433 if let Some((_, excerpted_buffer, excerpt_range)) = excerpt {
2434 if excerpted_buffer == *buffer {
2435 let snapshot = buffer.read_with(&cx, |buffer, _| buffer.snapshot());
2436 let excerpt_range = excerpt_range.to_offset(&snapshot);
2437 if snapshot
2438 .edited_ranges_for_transaction(transaction)
2439 .all(|range| {
2440 excerpt_range.start <= range.start && excerpt_range.end >= range.end
2441 })
2442 {
2443 return Ok(());
2444 }
2445 }
2446 }
2447 }
2448 } else {
2449 return Ok(());
2450 }
2451
2452 let mut ranges_to_highlight = Vec::new();
2453 let excerpt_buffer = cx.add_model(|cx| {
2454 let mut multibuffer = MultiBuffer::new(replica_id).with_title(title);
2455 for (buffer, transaction) in &entries {
2456 let snapshot = buffer.read(cx).snapshot();
2457 ranges_to_highlight.extend(
2458 multibuffer.push_excerpts_with_context_lines(
2459 buffer.clone(),
2460 snapshot
2461 .edited_ranges_for_transaction::<usize>(transaction)
2462 .collect(),
2463 1,
2464 cx,
2465 ),
2466 );
2467 }
2468 multibuffer.push_transaction(entries.iter().map(|(b, t)| (b, t)));
2469 multibuffer
2470 });
2471
2472 workspace.update(&mut cx, |workspace, cx| {
2473 let project = workspace.project().clone();
2474 let editor =
2475 cx.add_view(|cx| Editor::for_multibuffer(excerpt_buffer, Some(project), cx));
2476 workspace.add_item(Box::new(editor.clone()), cx);
2477 editor.update(cx, |editor, cx| {
2478 editor.highlight_background::<Self>(
2479 ranges_to_highlight,
2480 |theme| theme.editor.highlighted_line_background,
2481 cx,
2482 );
2483 });
2484 });
2485
2486 Ok(())
2487 }
2488
2489 fn refresh_code_actions(&mut self, cx: &mut ViewContext<Self>) -> Option<()> {
2490 let project = self.project.as_ref()?;
2491 let buffer = self.buffer.read(cx);
2492 let newest_selection = self.selections.newest_anchor().clone();
2493 let (start_buffer, start) = buffer.text_anchor_for_position(newest_selection.start, cx)?;
2494 let (end_buffer, end) = buffer.text_anchor_for_position(newest_selection.end, cx)?;
2495 if start_buffer != end_buffer {
2496 return None;
2497 }
2498
2499 let actions = project.update(cx, |project, cx| {
2500 project.code_actions(&start_buffer, start..end, cx)
2501 });
2502 self.code_actions_task = Some(cx.spawn_weak(|this, mut cx| async move {
2503 let actions = actions.await;
2504 if let Some(this) = this.upgrade(&cx) {
2505 this.update(&mut cx, |this, cx| {
2506 this.available_code_actions = actions.log_err().and_then(|actions| {
2507 if actions.is_empty() {
2508 None
2509 } else {
2510 Some((start_buffer, actions.into()))
2511 }
2512 });
2513 cx.notify();
2514 })
2515 }
2516 }));
2517 None
2518 }
2519
2520 fn refresh_document_highlights(&mut self, cx: &mut ViewContext<Self>) -> Option<()> {
2521 if self.pending_rename.is_some() {
2522 return None;
2523 }
2524
2525 let project = self.project.as_ref()?;
2526 let buffer = self.buffer.read(cx);
2527 let newest_selection = self.selections.newest_anchor().clone();
2528 let cursor_position = newest_selection.head();
2529 let (cursor_buffer, cursor_buffer_position) =
2530 buffer.text_anchor_for_position(cursor_position.clone(), cx)?;
2531 let (tail_buffer, _) = buffer.text_anchor_for_position(newest_selection.tail(), cx)?;
2532 if cursor_buffer != tail_buffer {
2533 return None;
2534 }
2535
2536 let highlights = project.update(cx, |project, cx| {
2537 project.document_highlights(&cursor_buffer, cursor_buffer_position, cx)
2538 });
2539
2540 self.document_highlights_task = Some(cx.spawn_weak(|this, mut cx| async move {
2541 let highlights = highlights.log_err().await;
2542 if let Some((this, highlights)) = this.upgrade(&cx).zip(highlights) {
2543 this.update(&mut cx, |this, cx| {
2544 if this.pending_rename.is_some() {
2545 return;
2546 }
2547
2548 let buffer_id = cursor_position.buffer_id;
2549 let buffer = this.buffer.read(cx);
2550 if !buffer
2551 .text_anchor_for_position(cursor_position, cx)
2552 .map_or(false, |(buffer, _)| buffer == cursor_buffer)
2553 {
2554 return;
2555 }
2556
2557 let cursor_buffer_snapshot = cursor_buffer.read(cx);
2558 let mut write_ranges = Vec::new();
2559 let mut read_ranges = Vec::new();
2560 for highlight in highlights {
2561 for (excerpt_id, excerpt_range) in
2562 buffer.excerpts_for_buffer(&cursor_buffer, cx)
2563 {
2564 let start = highlight
2565 .range
2566 .start
2567 .max(&excerpt_range.context.start, cursor_buffer_snapshot);
2568 let end = highlight
2569 .range
2570 .end
2571 .min(&excerpt_range.context.end, cursor_buffer_snapshot);
2572 if start.cmp(&end, cursor_buffer_snapshot).is_ge() {
2573 continue;
2574 }
2575
2576 let range = Anchor {
2577 buffer_id,
2578 excerpt_id: excerpt_id.clone(),
2579 text_anchor: start,
2580 }..Anchor {
2581 buffer_id,
2582 excerpt_id,
2583 text_anchor: end,
2584 };
2585 if highlight.kind == lsp::DocumentHighlightKind::WRITE {
2586 write_ranges.push(range);
2587 } else {
2588 read_ranges.push(range);
2589 }
2590 }
2591 }
2592
2593 this.highlight_background::<DocumentHighlightRead>(
2594 read_ranges,
2595 |theme| theme.editor.document_highlight_read_background,
2596 cx,
2597 );
2598 this.highlight_background::<DocumentHighlightWrite>(
2599 write_ranges,
2600 |theme| theme.editor.document_highlight_write_background,
2601 cx,
2602 );
2603 cx.notify();
2604 });
2605 }
2606 }));
2607 None
2608 }
2609
2610 pub fn render_code_actions_indicator(
2611 &self,
2612 style: &EditorStyle,
2613 cx: &mut RenderContext<Self>,
2614 ) -> Option<ElementBox> {
2615 if self.available_code_actions.is_some() {
2616 enum Tag {}
2617 Some(
2618 MouseEventHandler::new::<Tag, _, _>(0, cx, |_, _| {
2619 Svg::new("icons/zap.svg")
2620 .with_color(style.code_actions_indicator)
2621 .boxed()
2622 })
2623 .with_cursor_style(CursorStyle::PointingHand)
2624 .with_padding(Padding::uniform(3.))
2625 .on_mouse_down(|_, cx| {
2626 cx.dispatch_action(ToggleCodeActions {
2627 deployed_from_indicator: true,
2628 });
2629 })
2630 .boxed(),
2631 )
2632 } else {
2633 None
2634 }
2635 }
2636
2637 pub fn context_menu_visible(&self) -> bool {
2638 self.context_menu
2639 .as_ref()
2640 .map_or(false, |menu| menu.visible())
2641 }
2642
2643 pub fn render_context_menu(
2644 &self,
2645 cursor_position: DisplayPoint,
2646 style: EditorStyle,
2647 cx: &mut RenderContext<Editor>,
2648 ) -> Option<(DisplayPoint, ElementBox)> {
2649 self.context_menu
2650 .as_ref()
2651 .map(|menu| menu.render(cursor_position, style, cx))
2652 }
2653
2654 fn show_context_menu(&mut self, menu: ContextMenu, cx: &mut ViewContext<Self>) {
2655 if !matches!(menu, ContextMenu::Completions(_)) {
2656 self.completion_tasks.clear();
2657 }
2658 self.context_menu = Some(menu);
2659 cx.notify();
2660 }
2661
2662 fn hide_context_menu(&mut self, cx: &mut ViewContext<Self>) -> Option<ContextMenu> {
2663 cx.notify();
2664 self.completion_tasks.clear();
2665 self.context_menu.take()
2666 }
2667
2668 pub fn insert_snippet(
2669 &mut self,
2670 insertion_ranges: &[Range<usize>],
2671 snippet: Snippet,
2672 cx: &mut ViewContext<Self>,
2673 ) -> Result<()> {
2674 let tabstops = self.buffer.update(cx, |buffer, cx| {
2675 let snippet_text: Arc<str> = snippet.text.clone().into();
2676 buffer.edit_with_autoindent(
2677 insertion_ranges
2678 .iter()
2679 .cloned()
2680 .map(|range| (range, snippet_text.clone())),
2681 cx,
2682 );
2683
2684 let snapshot = &*buffer.read(cx);
2685 let snippet = &snippet;
2686 snippet
2687 .tabstops
2688 .iter()
2689 .map(|tabstop| {
2690 let mut tabstop_ranges = tabstop
2691 .iter()
2692 .flat_map(|tabstop_range| {
2693 let mut delta = 0 as isize;
2694 insertion_ranges.iter().map(move |insertion_range| {
2695 let insertion_start = insertion_range.start as isize + delta;
2696 delta +=
2697 snippet.text.len() as isize - insertion_range.len() as isize;
2698
2699 let start = snapshot.anchor_before(
2700 (insertion_start + tabstop_range.start) as usize,
2701 );
2702 let end = snapshot
2703 .anchor_after((insertion_start + tabstop_range.end) as usize);
2704 start..end
2705 })
2706 })
2707 .collect::<Vec<_>>();
2708 tabstop_ranges.sort_unstable_by(|a, b| a.start.cmp(&b.start, snapshot));
2709 tabstop_ranges
2710 })
2711 .collect::<Vec<_>>()
2712 });
2713
2714 if let Some(tabstop) = tabstops.first() {
2715 self.change_selections(Some(Autoscroll::Fit), cx, |s| {
2716 s.select_ranges(tabstop.iter().cloned());
2717 });
2718 self.snippet_stack.push(SnippetState {
2719 active_index: 0,
2720 ranges: tabstops,
2721 });
2722 }
2723
2724 Ok(())
2725 }
2726
2727 pub fn move_to_next_snippet_tabstop(&mut self, cx: &mut ViewContext<Self>) -> bool {
2728 self.move_to_snippet_tabstop(Bias::Right, cx)
2729 }
2730
2731 pub fn move_to_prev_snippet_tabstop(&mut self, cx: &mut ViewContext<Self>) -> bool {
2732 self.move_to_snippet_tabstop(Bias::Left, cx)
2733 }
2734
2735 pub fn move_to_snippet_tabstop(&mut self, bias: Bias, cx: &mut ViewContext<Self>) -> bool {
2736 if let Some(mut snippet) = self.snippet_stack.pop() {
2737 match bias {
2738 Bias::Left => {
2739 if snippet.active_index > 0 {
2740 snippet.active_index -= 1;
2741 } else {
2742 self.snippet_stack.push(snippet);
2743 return false;
2744 }
2745 }
2746 Bias::Right => {
2747 if snippet.active_index + 1 < snippet.ranges.len() {
2748 snippet.active_index += 1;
2749 } else {
2750 self.snippet_stack.push(snippet);
2751 return false;
2752 }
2753 }
2754 }
2755 if let Some(current_ranges) = snippet.ranges.get(snippet.active_index) {
2756 self.change_selections(Some(Autoscroll::Fit), cx, |s| {
2757 s.select_anchor_ranges(current_ranges.into_iter().cloned())
2758 });
2759 // If snippet state is not at the last tabstop, push it back on the stack
2760 if snippet.active_index + 1 < snippet.ranges.len() {
2761 self.snippet_stack.push(snippet);
2762 }
2763 return true;
2764 }
2765 }
2766
2767 false
2768 }
2769
2770 pub fn clear(&mut self, cx: &mut ViewContext<Self>) {
2771 self.transact(cx, |this, cx| {
2772 this.select_all(&SelectAll, cx);
2773 this.insert("", cx);
2774 });
2775 }
2776
2777 pub fn backspace(&mut self, _: &Backspace, cx: &mut ViewContext<Self>) {
2778 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
2779 let mut selections = self.selections.all::<Point>(cx);
2780 if !self.selections.line_mode {
2781 for selection in &mut selections {
2782 if selection.is_empty() {
2783 let old_head = selection.head();
2784 let mut new_head =
2785 movement::left(&display_map, old_head.to_display_point(&display_map))
2786 .to_point(&display_map);
2787 if let Some((buffer, line_buffer_range)) = display_map
2788 .buffer_snapshot
2789 .buffer_line_for_row(old_head.row)
2790 {
2791 let indent_size = buffer.indent_size_for_line(line_buffer_range.start.row);
2792 let language_name = buffer.language().map(|language| language.name());
2793 let indent_len = match indent_size.kind {
2794 IndentKind::Space => {
2795 cx.global::<Settings>().tab_size(language_name.as_deref())
2796 }
2797 IndentKind::Tab => 1,
2798 };
2799 if old_head.column <= indent_size.len && old_head.column > 0 {
2800 new_head = cmp::min(
2801 new_head,
2802 Point::new(
2803 old_head.row,
2804 ((old_head.column - 1) / indent_len) * indent_len,
2805 ),
2806 );
2807 }
2808 }
2809
2810 selection.set_head(new_head, SelectionGoal::None);
2811 }
2812 }
2813 }
2814
2815 self.transact(cx, |this, cx| {
2816 this.change_selections(Some(Autoscroll::Fit), cx, |s| s.select(selections));
2817 this.insert("", cx);
2818 });
2819 }
2820
2821 pub fn delete(&mut self, _: &Delete, cx: &mut ViewContext<Self>) {
2822 self.transact(cx, |this, cx| {
2823 this.change_selections(Some(Autoscroll::Fit), cx, |s| {
2824 let line_mode = s.line_mode;
2825 s.move_with(|map, selection| {
2826 if selection.is_empty() && !line_mode {
2827 let cursor = movement::right(map, selection.head());
2828 selection.set_head(cursor, SelectionGoal::None);
2829 }
2830 })
2831 });
2832 this.insert(&"", cx);
2833 });
2834 }
2835
2836 pub fn tab_prev(&mut self, _: &TabPrev, cx: &mut ViewContext<Self>) {
2837 if self.move_to_prev_snippet_tabstop(cx) {
2838 return;
2839 }
2840
2841 self.outdent(&Outdent, cx);
2842 }
2843
2844 pub fn tab(&mut self, _: &Tab, cx: &mut ViewContext<Self>) {
2845 if self.move_to_next_snippet_tabstop(cx) {
2846 return;
2847 }
2848
2849 let mut selections = self.selections.all_adjusted(cx);
2850 if selections.iter().all(|s| s.is_empty()) {
2851 self.transact(cx, |this, cx| {
2852 this.buffer.update(cx, |buffer, cx| {
2853 for selection in &mut selections {
2854 let language_name =
2855 buffer.language_at(selection.start, cx).map(|l| l.name());
2856 let settings = cx.global::<Settings>();
2857 let tab_size = if settings.hard_tabs(language_name.as_deref()) {
2858 IndentSize::tab()
2859 } else {
2860 let tab_size = settings.tab_size(language_name.as_deref());
2861 let char_column = buffer
2862 .read(cx)
2863 .text_for_range(Point::new(selection.start.row, 0)..selection.start)
2864 .flat_map(str::chars)
2865 .count();
2866 let chars_to_next_tab_stop = tab_size - (char_column as u32 % tab_size);
2867 IndentSize::spaces(chars_to_next_tab_stop)
2868 };
2869 buffer.edit(
2870 [(
2871 selection.start..selection.start,
2872 tab_size.chars().collect::<String>(),
2873 )],
2874 cx,
2875 );
2876 selection.start.column += tab_size.len;
2877 selection.end = selection.start;
2878 }
2879 });
2880 this.change_selections(Some(Autoscroll::Fit), cx, |s| {
2881 s.select(selections);
2882 });
2883 });
2884 } else {
2885 self.indent(&Indent, cx);
2886 }
2887 }
2888
2889 pub fn indent(&mut self, _: &Indent, cx: &mut ViewContext<Self>) {
2890 let mut selections = self.selections.all::<Point>(cx);
2891 self.transact(cx, |this, cx| {
2892 let mut last_indent = None;
2893 this.buffer.update(cx, |buffer, cx| {
2894 let snapshot = buffer.snapshot(cx);
2895 for selection in &mut selections {
2896 let language_name = buffer.language_at(selection.start, cx).map(|l| l.name());
2897 let settings = &cx.global::<Settings>();
2898 let tab_size = settings.tab_size(language_name.as_deref());
2899 let indent_kind = if settings.hard_tabs(language_name.as_deref()) {
2900 IndentKind::Tab
2901 } else {
2902 IndentKind::Space
2903 };
2904
2905 let mut start_row = selection.start.row;
2906 let mut end_row = selection.end.row + 1;
2907
2908 // If a selection ends at the beginning of a line, don't indent
2909 // that last line.
2910 if selection.end.column == 0 {
2911 end_row -= 1;
2912 }
2913
2914 // Avoid re-indenting a row that has already been indented by a
2915 // previous selection, but still update this selection's column
2916 // to reflect that indentation.
2917 if let Some((last_indent_row, last_indent_len)) = last_indent {
2918 if last_indent_row == selection.start.row {
2919 selection.start.column += last_indent_len;
2920 start_row += 1;
2921 }
2922 if last_indent_row == selection.end.row {
2923 selection.end.column += last_indent_len;
2924 }
2925 }
2926
2927 for row in start_row..end_row {
2928 let current_indent = snapshot.indent_size_for_line(row);
2929 let indent_delta = match (current_indent.kind, indent_kind) {
2930 (IndentKind::Space, IndentKind::Space) => {
2931 let columns_to_next_tab_stop =
2932 tab_size - (current_indent.len % tab_size);
2933 IndentSize::spaces(columns_to_next_tab_stop)
2934 }
2935 (IndentKind::Tab, IndentKind::Space) => IndentSize::spaces(tab_size),
2936 (_, IndentKind::Tab) => IndentSize::tab(),
2937 };
2938
2939 let row_start = Point::new(row, 0);
2940 buffer.edit(
2941 [(
2942 row_start..row_start,
2943 indent_delta.chars().collect::<String>(),
2944 )],
2945 cx,
2946 );
2947
2948 // Update this selection's endpoints to reflect the indentation.
2949 if row == selection.start.row {
2950 selection.start.column += indent_delta.len;
2951 }
2952 if row == selection.end.row {
2953 selection.end.column += indent_delta.len as u32;
2954 }
2955
2956 last_indent = Some((row, indent_delta.len));
2957 }
2958 }
2959 });
2960
2961 this.change_selections(Some(Autoscroll::Fit), cx, |s| {
2962 s.select(selections);
2963 });
2964 });
2965 }
2966
2967 pub fn outdent(&mut self, _: &Outdent, cx: &mut ViewContext<Self>) {
2968 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
2969 let selections = self.selections.all::<Point>(cx);
2970 let mut deletion_ranges = Vec::new();
2971 let mut last_outdent = None;
2972 {
2973 let buffer = self.buffer.read(cx);
2974 let snapshot = buffer.snapshot(cx);
2975 for selection in &selections {
2976 let language_name = buffer.language_at(selection.start, cx).map(|l| l.name());
2977 let tab_size = cx.global::<Settings>().tab_size(language_name.as_deref());
2978 let mut rows = selection.spanned_rows(false, &display_map);
2979
2980 // Avoid re-outdenting a row that has already been outdented by a
2981 // previous selection.
2982 if let Some(last_row) = last_outdent {
2983 if last_row == rows.start {
2984 rows.start += 1;
2985 }
2986 }
2987
2988 for row in rows {
2989 let indent_size = snapshot.indent_size_for_line(row);
2990 if indent_size.len > 0 {
2991 let deletion_len = match indent_size.kind {
2992 IndentKind::Space => {
2993 let columns_to_prev_tab_stop = indent_size.len % tab_size;
2994 if columns_to_prev_tab_stop == 0 {
2995 tab_size
2996 } else {
2997 columns_to_prev_tab_stop
2998 }
2999 }
3000 IndentKind::Tab => 1,
3001 };
3002 deletion_ranges.push(Point::new(row, 0)..Point::new(row, deletion_len));
3003 last_outdent = Some(row);
3004 }
3005 }
3006 }
3007 }
3008
3009 self.transact(cx, |this, cx| {
3010 this.buffer.update(cx, |buffer, cx| {
3011 let empty_str: Arc<str> = "".into();
3012 buffer.edit(
3013 deletion_ranges
3014 .into_iter()
3015 .map(|range| (range, empty_str.clone())),
3016 cx,
3017 );
3018 });
3019 let selections = this.selections.all::<usize>(cx);
3020 this.change_selections(Some(Autoscroll::Fit), cx, |s| s.select(selections));
3021 });
3022 }
3023
3024 pub fn delete_line(&mut self, _: &DeleteLine, cx: &mut ViewContext<Self>) {
3025 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
3026 let selections = self.selections.all::<Point>(cx);
3027
3028 let mut new_cursors = Vec::new();
3029 let mut edit_ranges = Vec::new();
3030 let mut selections = selections.iter().peekable();
3031 while let Some(selection) = selections.next() {
3032 let mut rows = selection.spanned_rows(false, &display_map);
3033 let goal_display_column = selection.head().to_display_point(&display_map).column();
3034
3035 // Accumulate contiguous regions of rows that we want to delete.
3036 while let Some(next_selection) = selections.peek() {
3037 let next_rows = next_selection.spanned_rows(false, &display_map);
3038 if next_rows.start <= rows.end {
3039 rows.end = next_rows.end;
3040 selections.next().unwrap();
3041 } else {
3042 break;
3043 }
3044 }
3045
3046 let buffer = &display_map.buffer_snapshot;
3047 let mut edit_start = Point::new(rows.start, 0).to_offset(&buffer);
3048 let edit_end;
3049 let cursor_buffer_row;
3050 if buffer.max_point().row >= rows.end {
3051 // If there's a line after the range, delete the \n from the end of the row range
3052 // and position the cursor on the next line.
3053 edit_end = Point::new(rows.end, 0).to_offset(&buffer);
3054 cursor_buffer_row = rows.end;
3055 } else {
3056 // If there isn't a line after the range, delete the \n from the line before the
3057 // start of the row range and position the cursor there.
3058 edit_start = edit_start.saturating_sub(1);
3059 edit_end = buffer.len();
3060 cursor_buffer_row = rows.start.saturating_sub(1);
3061 }
3062
3063 let mut cursor = Point::new(cursor_buffer_row, 0).to_display_point(&display_map);
3064 *cursor.column_mut() =
3065 cmp::min(goal_display_column, display_map.line_len(cursor.row()));
3066
3067 new_cursors.push((
3068 selection.id,
3069 buffer.anchor_after(cursor.to_point(&display_map)),
3070 ));
3071 edit_ranges.push(edit_start..edit_end);
3072 }
3073
3074 self.transact(cx, |this, cx| {
3075 let buffer = this.buffer.update(cx, |buffer, cx| {
3076 let empty_str: Arc<str> = "".into();
3077 buffer.edit(
3078 edit_ranges
3079 .into_iter()
3080 .map(|range| (range, empty_str.clone())),
3081 cx,
3082 );
3083 buffer.snapshot(cx)
3084 });
3085 let new_selections = new_cursors
3086 .into_iter()
3087 .map(|(id, cursor)| {
3088 let cursor = cursor.to_point(&buffer);
3089 Selection {
3090 id,
3091 start: cursor,
3092 end: cursor,
3093 reversed: false,
3094 goal: SelectionGoal::None,
3095 }
3096 })
3097 .collect();
3098
3099 this.change_selections(Some(Autoscroll::Fit), cx, |s| {
3100 s.select(new_selections);
3101 });
3102 });
3103 }
3104
3105 pub fn duplicate_line(&mut self, _: &DuplicateLine, cx: &mut ViewContext<Self>) {
3106 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
3107 let buffer = &display_map.buffer_snapshot;
3108 let selections = self.selections.all::<Point>(cx);
3109
3110 let mut edits = Vec::new();
3111 let mut selections_iter = selections.iter().peekable();
3112 while let Some(selection) = selections_iter.next() {
3113 // Avoid duplicating the same lines twice.
3114 let mut rows = selection.spanned_rows(false, &display_map);
3115
3116 while let Some(next_selection) = selections_iter.peek() {
3117 let next_rows = next_selection.spanned_rows(false, &display_map);
3118 if next_rows.start <= rows.end - 1 {
3119 rows.end = next_rows.end;
3120 selections_iter.next().unwrap();
3121 } else {
3122 break;
3123 }
3124 }
3125
3126 // Copy the text from the selected row region and splice it at the start of the region.
3127 let start = Point::new(rows.start, 0);
3128 let end = Point::new(rows.end - 1, buffer.line_len(rows.end - 1));
3129 let text = buffer
3130 .text_for_range(start..end)
3131 .chain(Some("\n"))
3132 .collect::<String>();
3133 edits.push((start..start, text));
3134 }
3135
3136 self.transact(cx, |this, cx| {
3137 this.buffer.update(cx, |buffer, cx| {
3138 buffer.edit(edits, cx);
3139 });
3140
3141 this.request_autoscroll(Autoscroll::Fit, cx);
3142 });
3143 }
3144
3145 pub fn move_line_up(&mut self, _: &MoveLineUp, cx: &mut ViewContext<Self>) {
3146 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
3147 let buffer = self.buffer.read(cx).snapshot(cx);
3148
3149 let mut edits = Vec::new();
3150 let mut unfold_ranges = Vec::new();
3151 let mut refold_ranges = Vec::new();
3152
3153 let selections = self.selections.all::<Point>(cx);
3154 let mut selections = selections.iter().peekable();
3155 let mut contiguous_row_selections = Vec::new();
3156 let mut new_selections = Vec::new();
3157
3158 while let Some(selection) = selections.next() {
3159 // Find all the selections that span a contiguous row range
3160 contiguous_row_selections.push(selection.clone());
3161 let start_row = selection.start.row;
3162 let mut end_row = if selection.end.column > 0 || selection.is_empty() {
3163 display_map.next_line_boundary(selection.end).0.row + 1
3164 } else {
3165 selection.end.row
3166 };
3167
3168 while let Some(next_selection) = selections.peek() {
3169 if next_selection.start.row <= end_row {
3170 end_row = if next_selection.end.column > 0 || next_selection.is_empty() {
3171 display_map.next_line_boundary(next_selection.end).0.row + 1
3172 } else {
3173 next_selection.end.row
3174 };
3175 contiguous_row_selections.push(selections.next().unwrap().clone());
3176 } else {
3177 break;
3178 }
3179 }
3180
3181 // Move the text spanned by the row range to be before the line preceding the row range
3182 if start_row > 0 {
3183 let range_to_move = Point::new(start_row - 1, buffer.line_len(start_row - 1))
3184 ..Point::new(end_row - 1, buffer.line_len(end_row - 1));
3185 let insertion_point = display_map
3186 .prev_line_boundary(Point::new(start_row - 1, 0))
3187 .0;
3188
3189 // Don't move lines across excerpts
3190 if buffer
3191 .excerpt_boundaries_in_range((
3192 Bound::Excluded(insertion_point),
3193 Bound::Included(range_to_move.end),
3194 ))
3195 .next()
3196 .is_none()
3197 {
3198 let text = buffer
3199 .text_for_range(range_to_move.clone())
3200 .flat_map(|s| s.chars())
3201 .skip(1)
3202 .chain(['\n'])
3203 .collect::<String>();
3204
3205 edits.push((
3206 buffer.anchor_after(range_to_move.start)
3207 ..buffer.anchor_before(range_to_move.end),
3208 String::new(),
3209 ));
3210 let insertion_anchor = buffer.anchor_after(insertion_point);
3211 edits.push((insertion_anchor.clone()..insertion_anchor, text));
3212
3213 let row_delta = range_to_move.start.row - insertion_point.row + 1;
3214
3215 // Move selections up
3216 new_selections.extend(contiguous_row_selections.drain(..).map(
3217 |mut selection| {
3218 selection.start.row -= row_delta;
3219 selection.end.row -= row_delta;
3220 selection
3221 },
3222 ));
3223
3224 // Move folds up
3225 unfold_ranges.push(range_to_move.clone());
3226 for fold in display_map.folds_in_range(
3227 buffer.anchor_before(range_to_move.start)
3228 ..buffer.anchor_after(range_to_move.end),
3229 ) {
3230 let mut start = fold.start.to_point(&buffer);
3231 let mut end = fold.end.to_point(&buffer);
3232 start.row -= row_delta;
3233 end.row -= row_delta;
3234 refold_ranges.push(start..end);
3235 }
3236 }
3237 }
3238
3239 // If we didn't move line(s), preserve the existing selections
3240 new_selections.extend(contiguous_row_selections.drain(..));
3241 }
3242
3243 self.transact(cx, |this, cx| {
3244 this.unfold_ranges(unfold_ranges, true, cx);
3245 this.buffer.update(cx, |buffer, cx| {
3246 for (range, text) in edits {
3247 buffer.edit([(range, text)], cx);
3248 }
3249 });
3250 this.fold_ranges(refold_ranges, cx);
3251 this.change_selections(Some(Autoscroll::Fit), cx, |s| {
3252 s.select(new_selections);
3253 })
3254 });
3255 }
3256
3257 pub fn move_line_down(&mut self, _: &MoveLineDown, cx: &mut ViewContext<Self>) {
3258 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
3259 let buffer = self.buffer.read(cx).snapshot(cx);
3260
3261 let mut edits = Vec::new();
3262 let mut unfold_ranges = Vec::new();
3263 let mut refold_ranges = Vec::new();
3264
3265 let selections = self.selections.all::<Point>(cx);
3266 let mut selections = selections.iter().peekable();
3267 let mut contiguous_row_selections = Vec::new();
3268 let mut new_selections = Vec::new();
3269
3270 while let Some(selection) = selections.next() {
3271 // Find all the selections that span a contiguous row range
3272 contiguous_row_selections.push(selection.clone());
3273 let start_row = selection.start.row;
3274 let mut end_row = if selection.end.column > 0 || selection.is_empty() {
3275 display_map.next_line_boundary(selection.end).0.row + 1
3276 } else {
3277 selection.end.row
3278 };
3279
3280 while let Some(next_selection) = selections.peek() {
3281 if next_selection.start.row <= end_row {
3282 end_row = if next_selection.end.column > 0 || next_selection.is_empty() {
3283 display_map.next_line_boundary(next_selection.end).0.row + 1
3284 } else {
3285 next_selection.end.row
3286 };
3287 contiguous_row_selections.push(selections.next().unwrap().clone());
3288 } else {
3289 break;
3290 }
3291 }
3292
3293 // Move the text spanned by the row range to be after the last line of the row range
3294 if end_row <= buffer.max_point().row {
3295 let range_to_move = Point::new(start_row, 0)..Point::new(end_row, 0);
3296 let insertion_point = display_map.next_line_boundary(Point::new(end_row, 0)).0;
3297
3298 // Don't move lines across excerpt boundaries
3299 if buffer
3300 .excerpt_boundaries_in_range((
3301 Bound::Excluded(range_to_move.start),
3302 Bound::Included(insertion_point),
3303 ))
3304 .next()
3305 .is_none()
3306 {
3307 let mut text = String::from("\n");
3308 text.extend(buffer.text_for_range(range_to_move.clone()));
3309 text.pop(); // Drop trailing newline
3310 edits.push((
3311 buffer.anchor_after(range_to_move.start)
3312 ..buffer.anchor_before(range_to_move.end),
3313 String::new(),
3314 ));
3315 let insertion_anchor = buffer.anchor_after(insertion_point);
3316 edits.push((insertion_anchor.clone()..insertion_anchor, text));
3317
3318 let row_delta = insertion_point.row - range_to_move.end.row + 1;
3319
3320 // Move selections down
3321 new_selections.extend(contiguous_row_selections.drain(..).map(
3322 |mut selection| {
3323 selection.start.row += row_delta;
3324 selection.end.row += row_delta;
3325 selection
3326 },
3327 ));
3328
3329 // Move folds down
3330 unfold_ranges.push(range_to_move.clone());
3331 for fold in display_map.folds_in_range(
3332 buffer.anchor_before(range_to_move.start)
3333 ..buffer.anchor_after(range_to_move.end),
3334 ) {
3335 let mut start = fold.start.to_point(&buffer);
3336 let mut end = fold.end.to_point(&buffer);
3337 start.row += row_delta;
3338 end.row += row_delta;
3339 refold_ranges.push(start..end);
3340 }
3341 }
3342 }
3343
3344 // If we didn't move line(s), preserve the existing selections
3345 new_selections.extend(contiguous_row_selections.drain(..));
3346 }
3347
3348 self.transact(cx, |this, cx| {
3349 this.unfold_ranges(unfold_ranges, true, cx);
3350 this.buffer.update(cx, |buffer, cx| {
3351 for (range, text) in edits {
3352 buffer.edit([(range, text)], cx);
3353 }
3354 });
3355 this.fold_ranges(refold_ranges, cx);
3356 this.change_selections(Some(Autoscroll::Fit), cx, |s| s.select(new_selections));
3357 });
3358 }
3359
3360 pub fn transpose(&mut self, _: &Transpose, cx: &mut ViewContext<Self>) {
3361 self.transact(cx, |this, cx| {
3362 let edits = this.change_selections(Some(Autoscroll::Fit), cx, |s| {
3363 let mut edits: Vec<(Range<usize>, String)> = Default::default();
3364 let line_mode = s.line_mode;
3365 s.move_with(|display_map, selection| {
3366 if !selection.is_empty() || line_mode {
3367 return;
3368 }
3369
3370 let mut head = selection.head();
3371 let mut transpose_offset = head.to_offset(display_map, Bias::Right);
3372 if head.column() == display_map.line_len(head.row()) {
3373 transpose_offset = display_map
3374 .buffer_snapshot
3375 .clip_offset(transpose_offset.saturating_sub(1), Bias::Left);
3376 }
3377
3378 if transpose_offset == 0 {
3379 return;
3380 }
3381
3382 *head.column_mut() += 1;
3383 head = display_map.clip_point(head, Bias::Right);
3384 selection.collapse_to(head, SelectionGoal::Column(head.column()));
3385
3386 let transpose_start = display_map
3387 .buffer_snapshot
3388 .clip_offset(transpose_offset.saturating_sub(1), Bias::Left);
3389 if edits.last().map_or(true, |e| e.0.end <= transpose_start) {
3390 let transpose_end = display_map
3391 .buffer_snapshot
3392 .clip_offset(transpose_offset + 1, Bias::Right);
3393 if let Some(ch) =
3394 display_map.buffer_snapshot.chars_at(transpose_start).next()
3395 {
3396 edits.push((transpose_start..transpose_offset, String::new()));
3397 edits.push((transpose_end..transpose_end, ch.to_string()));
3398 }
3399 }
3400 });
3401 edits
3402 });
3403 this.buffer.update(cx, |buffer, cx| buffer.edit(edits, cx));
3404 let selections = this.selections.all::<usize>(cx);
3405 this.change_selections(Some(Autoscroll::Fit), cx, |s| {
3406 s.select(selections);
3407 });
3408 });
3409 }
3410
3411 pub fn cut(&mut self, _: &Cut, cx: &mut ViewContext<Self>) {
3412 let mut text = String::new();
3413 let buffer = self.buffer.read(cx).snapshot(cx);
3414 let mut selections = self.selections.all::<Point>(cx);
3415 let mut clipboard_selections = Vec::with_capacity(selections.len());
3416 {
3417 let max_point = buffer.max_point();
3418 for selection in &mut selections {
3419 let is_entire_line = selection.is_empty() || self.selections.line_mode;
3420 if is_entire_line {
3421 selection.start = Point::new(selection.start.row, 0);
3422 selection.end = cmp::min(max_point, Point::new(selection.end.row + 1, 0));
3423 selection.goal = SelectionGoal::None;
3424 }
3425 let mut len = 0;
3426 for chunk in buffer.text_for_range(selection.start..selection.end) {
3427 text.push_str(chunk);
3428 len += chunk.len();
3429 }
3430 clipboard_selections.push(ClipboardSelection {
3431 len,
3432 is_entire_line,
3433 });
3434 }
3435 }
3436
3437 self.transact(cx, |this, cx| {
3438 this.change_selections(Some(Autoscroll::Fit), cx, |s| {
3439 s.select(selections);
3440 });
3441 this.insert("", cx);
3442 cx.write_to_clipboard(ClipboardItem::new(text).with_metadata(clipboard_selections));
3443 });
3444 }
3445
3446 pub fn copy(&mut self, _: &Copy, cx: &mut ViewContext<Self>) {
3447 let selections = self.selections.all::<Point>(cx);
3448 let buffer = self.buffer.read(cx).read(cx);
3449 let mut text = String::new();
3450
3451 let mut clipboard_selections = Vec::with_capacity(selections.len());
3452 {
3453 let max_point = buffer.max_point();
3454 for selection in selections.iter() {
3455 let mut start = selection.start;
3456 let mut end = selection.end;
3457 let is_entire_line = selection.is_empty() || self.selections.line_mode;
3458 if is_entire_line {
3459 start = Point::new(start.row, 0);
3460 end = cmp::min(max_point, Point::new(end.row + 1, 0));
3461 }
3462 let mut len = 0;
3463 for chunk in buffer.text_for_range(start..end) {
3464 text.push_str(chunk);
3465 len += chunk.len();
3466 }
3467 clipboard_selections.push(ClipboardSelection {
3468 len,
3469 is_entire_line,
3470 });
3471 }
3472 }
3473
3474 cx.write_to_clipboard(ClipboardItem::new(text).with_metadata(clipboard_selections));
3475 }
3476
3477 pub fn paste(&mut self, _: &Paste, cx: &mut ViewContext<Self>) {
3478 self.transact(cx, |this, cx| {
3479 if let Some(item) = cx.as_mut().read_from_clipboard() {
3480 let mut clipboard_text = Cow::Borrowed(item.text());
3481 if let Some(mut clipboard_selections) = item.metadata::<Vec<ClipboardSelection>>() {
3482 let old_selections = this.selections.all::<usize>(cx);
3483 let all_selections_were_entire_line =
3484 clipboard_selections.iter().all(|s| s.is_entire_line);
3485 if clipboard_selections.len() != old_selections.len() {
3486 let mut newline_separated_text = String::new();
3487 let mut clipboard_selections = clipboard_selections.drain(..).peekable();
3488 let mut ix = 0;
3489 while let Some(clipboard_selection) = clipboard_selections.next() {
3490 newline_separated_text
3491 .push_str(&clipboard_text[ix..ix + clipboard_selection.len]);
3492 ix += clipboard_selection.len;
3493 if clipboard_selections.peek().is_some() {
3494 newline_separated_text.push('\n');
3495 }
3496 }
3497 clipboard_text = Cow::Owned(newline_separated_text);
3498 }
3499
3500 this.buffer.update(cx, |buffer, cx| {
3501 let snapshot = buffer.read(cx);
3502 let mut start_offset = 0;
3503 let mut edits = Vec::new();
3504 let line_mode = this.selections.line_mode;
3505 for (ix, selection) in old_selections.iter().enumerate() {
3506 let to_insert;
3507 let entire_line;
3508 if let Some(clipboard_selection) = clipboard_selections.get(ix) {
3509 let end_offset = start_offset + clipboard_selection.len;
3510 to_insert = &clipboard_text[start_offset..end_offset];
3511 entire_line = clipboard_selection.is_entire_line;
3512 start_offset = end_offset;
3513 } else {
3514 to_insert = clipboard_text.as_str();
3515 entire_line = all_selections_were_entire_line;
3516 }
3517
3518 // If the corresponding selection was empty when this slice of the
3519 // clipboard text was written, then the entire line containing the
3520 // selection was copied. If this selection is also currently empty,
3521 // then paste the line before the current line of the buffer.
3522 let range = if selection.is_empty() && !line_mode && entire_line {
3523 let column = selection.start.to_point(&snapshot).column as usize;
3524 let line_start = selection.start - column;
3525 line_start..line_start
3526 } else {
3527 selection.range()
3528 };
3529
3530 edits.push((range, to_insert));
3531 }
3532 drop(snapshot);
3533 buffer.edit_with_autoindent(edits, cx);
3534 });
3535
3536 let selections = this.selections.all::<usize>(cx);
3537 this.change_selections(Some(Autoscroll::Fit), cx, |s| s.select(selections));
3538 } else {
3539 this.insert(&clipboard_text, cx);
3540 }
3541 }
3542 });
3543 }
3544
3545 pub fn undo(&mut self, _: &Undo, cx: &mut ViewContext<Self>) {
3546 if let Some(tx_id) = self.buffer.update(cx, |buffer, cx| buffer.undo(cx)) {
3547 if let Some((selections, _)) = self.selection_history.transaction(tx_id).cloned() {
3548 self.change_selections(None, cx, |s| {
3549 s.select_anchors(selections.to_vec());
3550 });
3551 }
3552 self.request_autoscroll(Autoscroll::Fit, cx);
3553 cx.emit(Event::Edited);
3554 }
3555 }
3556
3557 pub fn redo(&mut self, _: &Redo, cx: &mut ViewContext<Self>) {
3558 if let Some(tx_id) = self.buffer.update(cx, |buffer, cx| buffer.redo(cx)) {
3559 if let Some((_, Some(selections))) = self.selection_history.transaction(tx_id).cloned()
3560 {
3561 self.change_selections(None, cx, |s| {
3562 s.select_anchors(selections.to_vec());
3563 });
3564 }
3565 self.request_autoscroll(Autoscroll::Fit, cx);
3566 cx.emit(Event::Edited);
3567 }
3568 }
3569
3570 pub fn finalize_last_transaction(&mut self, cx: &mut ViewContext<Self>) {
3571 self.buffer
3572 .update(cx, |buffer, cx| buffer.finalize_last_transaction(cx));
3573 }
3574
3575 pub fn move_left(&mut self, _: &MoveLeft, cx: &mut ViewContext<Self>) {
3576 self.change_selections(Some(Autoscroll::Fit), cx, |s| {
3577 let line_mode = s.line_mode;
3578 s.move_with(|map, selection| {
3579 let cursor = if selection.is_empty() && !line_mode {
3580 movement::left(map, selection.start)
3581 } else {
3582 selection.start
3583 };
3584 selection.collapse_to(cursor, SelectionGoal::None);
3585 });
3586 })
3587 }
3588
3589 pub fn select_left(&mut self, _: &SelectLeft, cx: &mut ViewContext<Self>) {
3590 self.change_selections(Some(Autoscroll::Fit), cx, |s| {
3591 s.move_heads_with(|map, head, _| (movement::left(map, head), SelectionGoal::None));
3592 })
3593 }
3594
3595 pub fn move_right(&mut self, _: &MoveRight, cx: &mut ViewContext<Self>) {
3596 self.change_selections(Some(Autoscroll::Fit), cx, |s| {
3597 let line_mode = s.line_mode;
3598 s.move_with(|map, selection| {
3599 let cursor = if selection.is_empty() && !line_mode {
3600 movement::right(map, selection.end)
3601 } else {
3602 selection.end
3603 };
3604 selection.collapse_to(cursor, SelectionGoal::None)
3605 });
3606 })
3607 }
3608
3609 pub fn select_right(&mut self, _: &SelectRight, cx: &mut ViewContext<Self>) {
3610 self.change_selections(Some(Autoscroll::Fit), cx, |s| {
3611 s.move_heads_with(|map, head, _| (movement::right(map, head), SelectionGoal::None));
3612 })
3613 }
3614
3615 pub fn move_up(&mut self, _: &MoveUp, cx: &mut ViewContext<Self>) {
3616 if self.take_rename(true, cx).is_some() {
3617 return;
3618 }
3619
3620 if let Some(context_menu) = self.context_menu.as_mut() {
3621 if context_menu.select_prev(cx) {
3622 return;
3623 }
3624 }
3625
3626 if matches!(self.mode, EditorMode::SingleLine) {
3627 cx.propagate_action();
3628 return;
3629 }
3630
3631 self.change_selections(Some(Autoscroll::Fit), cx, |s| {
3632 let line_mode = s.line_mode;
3633 s.move_with(|map, selection| {
3634 if !selection.is_empty() && !line_mode {
3635 selection.goal = SelectionGoal::None;
3636 }
3637 let (cursor, goal) = movement::up(&map, selection.start, selection.goal, false);
3638 selection.collapse_to(cursor, goal);
3639 });
3640 })
3641 }
3642
3643 pub fn select_up(&mut self, _: &SelectUp, cx: &mut ViewContext<Self>) {
3644 self.change_selections(Some(Autoscroll::Fit), cx, |s| {
3645 s.move_heads_with(|map, head, goal| movement::up(map, head, goal, false))
3646 })
3647 }
3648
3649 pub fn move_down(&mut self, _: &MoveDown, cx: &mut ViewContext<Self>) {
3650 self.take_rename(true, cx);
3651
3652 if let Some(context_menu) = self.context_menu.as_mut() {
3653 if context_menu.select_next(cx) {
3654 return;
3655 }
3656 }
3657
3658 if matches!(self.mode, EditorMode::SingleLine) {
3659 cx.propagate_action();
3660 return;
3661 }
3662
3663 self.change_selections(Some(Autoscroll::Fit), cx, |s| {
3664 let line_mode = s.line_mode;
3665 s.move_with(|map, selection| {
3666 if !selection.is_empty() && !line_mode {
3667 selection.goal = SelectionGoal::None;
3668 }
3669 let (cursor, goal) = movement::down(&map, selection.end, selection.goal, false);
3670 selection.collapse_to(cursor, goal);
3671 });
3672 });
3673 }
3674
3675 pub fn select_down(&mut self, _: &SelectDown, cx: &mut ViewContext<Self>) {
3676 self.change_selections(Some(Autoscroll::Fit), cx, |s| {
3677 s.move_heads_with(|map, head, goal| movement::down(map, head, goal, false))
3678 });
3679 }
3680
3681 pub fn move_to_previous_word_start(
3682 &mut self,
3683 _: &MoveToPreviousWordStart,
3684 cx: &mut ViewContext<Self>,
3685 ) {
3686 self.change_selections(Some(Autoscroll::Fit), cx, |s| {
3687 s.move_cursors_with(|map, head, _| {
3688 (
3689 movement::previous_word_start(map, head),
3690 SelectionGoal::None,
3691 )
3692 });
3693 })
3694 }
3695
3696 pub fn move_to_previous_subword_start(
3697 &mut self,
3698 _: &MoveToPreviousSubwordStart,
3699 cx: &mut ViewContext<Self>,
3700 ) {
3701 self.change_selections(Some(Autoscroll::Fit), cx, |s| {
3702 s.move_cursors_with(|map, head, _| {
3703 (
3704 movement::previous_subword_start(map, head),
3705 SelectionGoal::None,
3706 )
3707 });
3708 })
3709 }
3710
3711 pub fn select_to_previous_word_start(
3712 &mut self,
3713 _: &SelectToPreviousWordStart,
3714 cx: &mut ViewContext<Self>,
3715 ) {
3716 self.change_selections(Some(Autoscroll::Fit), cx, |s| {
3717 s.move_heads_with(|map, head, _| {
3718 (
3719 movement::previous_word_start(map, head),
3720 SelectionGoal::None,
3721 )
3722 });
3723 })
3724 }
3725
3726 pub fn select_to_previous_subword_start(
3727 &mut self,
3728 _: &SelectToPreviousSubwordStart,
3729 cx: &mut ViewContext<Self>,
3730 ) {
3731 self.change_selections(Some(Autoscroll::Fit), cx, |s| {
3732 s.move_heads_with(|map, head, _| {
3733 (
3734 movement::previous_subword_start(map, head),
3735 SelectionGoal::None,
3736 )
3737 });
3738 })
3739 }
3740
3741 pub fn delete_to_previous_word_start(
3742 &mut self,
3743 _: &DeleteToPreviousWordStart,
3744 cx: &mut ViewContext<Self>,
3745 ) {
3746 self.transact(cx, |this, cx| {
3747 this.change_selections(Some(Autoscroll::Fit), cx, |s| {
3748 let line_mode = s.line_mode;
3749 s.move_with(|map, selection| {
3750 if selection.is_empty() && !line_mode {
3751 let cursor = movement::previous_word_start(map, selection.head());
3752 selection.set_head(cursor, SelectionGoal::None);
3753 }
3754 });
3755 });
3756 this.insert("", cx);
3757 });
3758 }
3759
3760 pub fn delete_to_previous_subword_start(
3761 &mut self,
3762 _: &DeleteToPreviousSubwordStart,
3763 cx: &mut ViewContext<Self>,
3764 ) {
3765 self.transact(cx, |this, cx| {
3766 this.change_selections(Some(Autoscroll::Fit), cx, |s| {
3767 let line_mode = s.line_mode;
3768 s.move_with(|map, selection| {
3769 if selection.is_empty() && !line_mode {
3770 let cursor = movement::previous_subword_start(map, selection.head());
3771 selection.set_head(cursor, SelectionGoal::None);
3772 }
3773 });
3774 });
3775 this.insert("", cx);
3776 });
3777 }
3778
3779 pub fn move_to_next_word_end(&mut self, _: &MoveToNextWordEnd, cx: &mut ViewContext<Self>) {
3780 self.change_selections(Some(Autoscroll::Fit), cx, |s| {
3781 s.move_cursors_with(|map, head, _| {
3782 (movement::next_word_end(map, head), SelectionGoal::None)
3783 });
3784 })
3785 }
3786
3787 pub fn move_to_next_subword_end(
3788 &mut self,
3789 _: &MoveToNextSubwordEnd,
3790 cx: &mut ViewContext<Self>,
3791 ) {
3792 self.change_selections(Some(Autoscroll::Fit), cx, |s| {
3793 s.move_cursors_with(|map, head, _| {
3794 (movement::next_subword_end(map, head), SelectionGoal::None)
3795 });
3796 })
3797 }
3798
3799 pub fn select_to_next_word_end(&mut self, _: &SelectToNextWordEnd, cx: &mut ViewContext<Self>) {
3800 self.change_selections(Some(Autoscroll::Fit), cx, |s| {
3801 s.move_heads_with(|map, head, _| {
3802 (movement::next_word_end(map, head), SelectionGoal::None)
3803 });
3804 })
3805 }
3806
3807 pub fn select_to_next_subword_end(
3808 &mut self,
3809 _: &SelectToNextSubwordEnd,
3810 cx: &mut ViewContext<Self>,
3811 ) {
3812 self.change_selections(Some(Autoscroll::Fit), cx, |s| {
3813 s.move_heads_with(|map, head, _| {
3814 (movement::next_subword_end(map, head), SelectionGoal::None)
3815 });
3816 })
3817 }
3818
3819 pub fn delete_to_next_word_end(&mut self, _: &DeleteToNextWordEnd, cx: &mut ViewContext<Self>) {
3820 self.transact(cx, |this, cx| {
3821 this.change_selections(Some(Autoscroll::Fit), cx, |s| {
3822 let line_mode = s.line_mode;
3823 s.move_with(|map, selection| {
3824 if selection.is_empty() && !line_mode {
3825 let cursor = movement::next_word_end(map, selection.head());
3826 selection.set_head(cursor, SelectionGoal::None);
3827 }
3828 });
3829 });
3830 this.insert("", cx);
3831 });
3832 }
3833
3834 pub fn delete_to_next_subword_end(
3835 &mut self,
3836 _: &DeleteToNextSubwordEnd,
3837 cx: &mut ViewContext<Self>,
3838 ) {
3839 self.transact(cx, |this, cx| {
3840 this.change_selections(Some(Autoscroll::Fit), cx, |s| {
3841 s.move_with(|map, selection| {
3842 if selection.is_empty() {
3843 let cursor = movement::next_subword_end(map, selection.head());
3844 selection.set_head(cursor, SelectionGoal::None);
3845 }
3846 });
3847 });
3848 this.insert("", cx);
3849 });
3850 }
3851
3852 pub fn move_to_beginning_of_line(
3853 &mut self,
3854 _: &MoveToBeginningOfLine,
3855 cx: &mut ViewContext<Self>,
3856 ) {
3857 self.change_selections(Some(Autoscroll::Fit), cx, |s| {
3858 s.move_cursors_with(|map, head, _| {
3859 (
3860 movement::line_beginning(map, head, true),
3861 SelectionGoal::None,
3862 )
3863 });
3864 })
3865 }
3866
3867 pub fn select_to_beginning_of_line(
3868 &mut self,
3869 action: &SelectToBeginningOfLine,
3870 cx: &mut ViewContext<Self>,
3871 ) {
3872 self.change_selections(Some(Autoscroll::Fit), cx, |s| {
3873 s.move_heads_with(|map, head, _| {
3874 (
3875 movement::line_beginning(map, head, action.stop_at_soft_wraps),
3876 SelectionGoal::None,
3877 )
3878 });
3879 });
3880 }
3881
3882 pub fn delete_to_beginning_of_line(
3883 &mut self,
3884 _: &DeleteToBeginningOfLine,
3885 cx: &mut ViewContext<Self>,
3886 ) {
3887 self.transact(cx, |this, cx| {
3888 this.change_selections(Some(Autoscroll::Fit), cx, |s| {
3889 s.move_with(|_, selection| {
3890 selection.reversed = true;
3891 });
3892 });
3893
3894 this.select_to_beginning_of_line(
3895 &SelectToBeginningOfLine {
3896 stop_at_soft_wraps: false,
3897 },
3898 cx,
3899 );
3900 this.backspace(&Backspace, cx);
3901 });
3902 }
3903
3904 pub fn move_to_end_of_line(&mut self, _: &MoveToEndOfLine, cx: &mut ViewContext<Self>) {
3905 self.change_selections(Some(Autoscroll::Fit), cx, |s| {
3906 s.move_cursors_with(|map, head, _| {
3907 (movement::line_end(map, head, true), SelectionGoal::None)
3908 });
3909 })
3910 }
3911
3912 pub fn select_to_end_of_line(
3913 &mut self,
3914 action: &SelectToEndOfLine,
3915 cx: &mut ViewContext<Self>,
3916 ) {
3917 self.change_selections(Some(Autoscroll::Fit), cx, |s| {
3918 s.move_heads_with(|map, head, _| {
3919 (
3920 movement::line_end(map, head, action.stop_at_soft_wraps),
3921 SelectionGoal::None,
3922 )
3923 });
3924 })
3925 }
3926
3927 pub fn delete_to_end_of_line(&mut self, _: &DeleteToEndOfLine, cx: &mut ViewContext<Self>) {
3928 self.transact(cx, |this, cx| {
3929 this.select_to_end_of_line(
3930 &SelectToEndOfLine {
3931 stop_at_soft_wraps: false,
3932 },
3933 cx,
3934 );
3935 this.delete(&Delete, cx);
3936 });
3937 }
3938
3939 pub fn cut_to_end_of_line(&mut self, _: &CutToEndOfLine, cx: &mut ViewContext<Self>) {
3940 self.transact(cx, |this, cx| {
3941 this.select_to_end_of_line(
3942 &SelectToEndOfLine {
3943 stop_at_soft_wraps: false,
3944 },
3945 cx,
3946 );
3947 this.cut(&Cut, cx);
3948 });
3949 }
3950
3951 pub fn move_to_beginning(&mut self, _: &MoveToBeginning, cx: &mut ViewContext<Self>) {
3952 if matches!(self.mode, EditorMode::SingleLine) {
3953 cx.propagate_action();
3954 return;
3955 }
3956
3957 self.change_selections(Some(Autoscroll::Fit), cx, |s| {
3958 s.select_ranges(vec![0..0]);
3959 });
3960 }
3961
3962 pub fn select_to_beginning(&mut self, _: &SelectToBeginning, cx: &mut ViewContext<Self>) {
3963 let mut selection = self.selections.last::<Point>(cx);
3964 selection.set_head(Point::zero(), SelectionGoal::None);
3965
3966 self.change_selections(Some(Autoscroll::Fit), cx, |s| {
3967 s.select(vec![selection]);
3968 });
3969 }
3970
3971 pub fn move_to_end(&mut self, _: &MoveToEnd, cx: &mut ViewContext<Self>) {
3972 if matches!(self.mode, EditorMode::SingleLine) {
3973 cx.propagate_action();
3974 return;
3975 }
3976
3977 let cursor = self.buffer.read(cx).read(cx).len();
3978 self.change_selections(Some(Autoscroll::Fit), cx, |s| {
3979 s.select_ranges(vec![cursor..cursor])
3980 });
3981 }
3982
3983 pub fn set_nav_history(&mut self, nav_history: Option<ItemNavHistory>) {
3984 self.nav_history = nav_history;
3985 }
3986
3987 pub fn nav_history(&self) -> Option<&ItemNavHistory> {
3988 self.nav_history.as_ref()
3989 }
3990
3991 fn push_to_nav_history(
3992 &self,
3993 position: Anchor,
3994 new_position: Option<Point>,
3995 cx: &mut ViewContext<Self>,
3996 ) {
3997 if let Some(nav_history) = &self.nav_history {
3998 let buffer = self.buffer.read(cx).read(cx);
3999 let point = position.to_point(&buffer);
4000 let scroll_top_row = self.scroll_top_anchor.to_point(&buffer).row;
4001 drop(buffer);
4002
4003 if let Some(new_position) = new_position {
4004 let row_delta = (new_position.row as i64 - point.row as i64).abs();
4005 if row_delta < MIN_NAVIGATION_HISTORY_ROW_DELTA {
4006 return;
4007 }
4008 }
4009
4010 nav_history.push(Some(NavigationData {
4011 cursor_anchor: position,
4012 cursor_position: point,
4013 scroll_position: self.scroll_position,
4014 scroll_top_anchor: self.scroll_top_anchor.clone(),
4015 scroll_top_row,
4016 }));
4017 }
4018 }
4019
4020 pub fn select_to_end(&mut self, _: &SelectToEnd, cx: &mut ViewContext<Self>) {
4021 let buffer = self.buffer.read(cx).snapshot(cx);
4022 let mut selection = self.selections.first::<usize>(cx);
4023 selection.set_head(buffer.len(), SelectionGoal::None);
4024 self.change_selections(Some(Autoscroll::Fit), cx, |s| {
4025 s.select(vec![selection]);
4026 });
4027 }
4028
4029 pub fn select_all(&mut self, _: &SelectAll, cx: &mut ViewContext<Self>) {
4030 let end = self.buffer.read(cx).read(cx).len();
4031 self.change_selections(Some(Autoscroll::Fit), cx, |s| {
4032 s.select_ranges(vec![0..end]);
4033 });
4034 }
4035
4036 pub fn select_line(&mut self, _: &SelectLine, cx: &mut ViewContext<Self>) {
4037 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
4038 let mut selections = self.selections.all::<Point>(cx);
4039 let max_point = display_map.buffer_snapshot.max_point();
4040 for selection in &mut selections {
4041 let rows = selection.spanned_rows(true, &display_map);
4042 selection.start = Point::new(rows.start, 0);
4043 selection.end = cmp::min(max_point, Point::new(rows.end, 0));
4044 selection.reversed = false;
4045 }
4046 self.change_selections(Some(Autoscroll::Fit), cx, |s| {
4047 s.select(selections);
4048 });
4049 }
4050
4051 pub fn split_selection_into_lines(
4052 &mut self,
4053 _: &SplitSelectionIntoLines,
4054 cx: &mut ViewContext<Self>,
4055 ) {
4056 let mut to_unfold = Vec::new();
4057 let mut new_selection_ranges = Vec::new();
4058 {
4059 let selections = self.selections.all::<Point>(cx);
4060 let buffer = self.buffer.read(cx).read(cx);
4061 for selection in selections {
4062 for row in selection.start.row..selection.end.row {
4063 let cursor = Point::new(row, buffer.line_len(row));
4064 new_selection_ranges.push(cursor..cursor);
4065 }
4066 new_selection_ranges.push(selection.end..selection.end);
4067 to_unfold.push(selection.start..selection.end);
4068 }
4069 }
4070 self.unfold_ranges(to_unfold, true, cx);
4071 self.change_selections(Some(Autoscroll::Fit), cx, |s| {
4072 s.select_ranges(new_selection_ranges);
4073 });
4074 }
4075
4076 pub fn add_selection_above(&mut self, _: &AddSelectionAbove, cx: &mut ViewContext<Self>) {
4077 self.add_selection(true, cx);
4078 }
4079
4080 pub fn add_selection_below(&mut self, _: &AddSelectionBelow, cx: &mut ViewContext<Self>) {
4081 self.add_selection(false, cx);
4082 }
4083
4084 fn add_selection(&mut self, above: bool, cx: &mut ViewContext<Self>) {
4085 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
4086 let mut selections = self.selections.all::<Point>(cx);
4087 let mut state = self.add_selections_state.take().unwrap_or_else(|| {
4088 let oldest_selection = selections.iter().min_by_key(|s| s.id).unwrap().clone();
4089 let range = oldest_selection.display_range(&display_map).sorted();
4090 let columns = cmp::min(range.start.column(), range.end.column())
4091 ..cmp::max(range.start.column(), range.end.column());
4092
4093 selections.clear();
4094 let mut stack = Vec::new();
4095 for row in range.start.row()..=range.end.row() {
4096 if let Some(selection) = self.selections.build_columnar_selection(
4097 &display_map,
4098 row,
4099 &columns,
4100 oldest_selection.reversed,
4101 ) {
4102 stack.push(selection.id);
4103 selections.push(selection);
4104 }
4105 }
4106
4107 if above {
4108 stack.reverse();
4109 }
4110
4111 AddSelectionsState { above, stack }
4112 });
4113
4114 let last_added_selection = *state.stack.last().unwrap();
4115 let mut new_selections = Vec::new();
4116 if above == state.above {
4117 let end_row = if above {
4118 0
4119 } else {
4120 display_map.max_point().row()
4121 };
4122
4123 'outer: for selection in selections {
4124 if selection.id == last_added_selection {
4125 let range = selection.display_range(&display_map).sorted();
4126 debug_assert_eq!(range.start.row(), range.end.row());
4127 let mut row = range.start.row();
4128 let columns = if let SelectionGoal::ColumnRange { start, end } = selection.goal
4129 {
4130 start..end
4131 } else {
4132 cmp::min(range.start.column(), range.end.column())
4133 ..cmp::max(range.start.column(), range.end.column())
4134 };
4135
4136 while row != end_row {
4137 if above {
4138 row -= 1;
4139 } else {
4140 row += 1;
4141 }
4142
4143 if let Some(new_selection) = self.selections.build_columnar_selection(
4144 &display_map,
4145 row,
4146 &columns,
4147 selection.reversed,
4148 ) {
4149 state.stack.push(new_selection.id);
4150 if above {
4151 new_selections.push(new_selection);
4152 new_selections.push(selection);
4153 } else {
4154 new_selections.push(selection);
4155 new_selections.push(new_selection);
4156 }
4157
4158 continue 'outer;
4159 }
4160 }
4161 }
4162
4163 new_selections.push(selection);
4164 }
4165 } else {
4166 new_selections = selections;
4167 new_selections.retain(|s| s.id != last_added_selection);
4168 state.stack.pop();
4169 }
4170
4171 self.change_selections(Some(Autoscroll::Fit), cx, |s| {
4172 s.select(new_selections);
4173 });
4174 if state.stack.len() > 1 {
4175 self.add_selections_state = Some(state);
4176 }
4177 }
4178
4179 pub fn select_next(&mut self, action: &SelectNext, cx: &mut ViewContext<Self>) {
4180 self.push_to_selection_history();
4181 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
4182 let buffer = &display_map.buffer_snapshot;
4183 let mut selections = self.selections.all::<usize>(cx);
4184 if let Some(mut select_next_state) = self.select_next_state.take() {
4185 let query = &select_next_state.query;
4186 if !select_next_state.done {
4187 let first_selection = selections.iter().min_by_key(|s| s.id).unwrap();
4188 let last_selection = selections.iter().max_by_key(|s| s.id).unwrap();
4189 let mut next_selected_range = None;
4190
4191 let bytes_after_last_selection =
4192 buffer.bytes_in_range(last_selection.end..buffer.len());
4193 let bytes_before_first_selection = buffer.bytes_in_range(0..first_selection.start);
4194 let query_matches = query
4195 .stream_find_iter(bytes_after_last_selection)
4196 .map(|result| (last_selection.end, result))
4197 .chain(
4198 query
4199 .stream_find_iter(bytes_before_first_selection)
4200 .map(|result| (0, result)),
4201 );
4202 for (start_offset, query_match) in query_matches {
4203 let query_match = query_match.unwrap(); // can only fail due to I/O
4204 let offset_range =
4205 start_offset + query_match.start()..start_offset + query_match.end();
4206 let display_range = offset_range.start.to_display_point(&display_map)
4207 ..offset_range.end.to_display_point(&display_map);
4208
4209 if !select_next_state.wordwise
4210 || (!movement::is_inside_word(&display_map, display_range.start)
4211 && !movement::is_inside_word(&display_map, display_range.end))
4212 {
4213 next_selected_range = Some(offset_range);
4214 break;
4215 }
4216 }
4217
4218 if let Some(next_selected_range) = next_selected_range {
4219 self.unfold_ranges([next_selected_range.clone()], false, cx);
4220 self.change_selections(Some(Autoscroll::Newest), cx, |s| {
4221 if action.replace_newest {
4222 s.delete(s.newest_anchor().id);
4223 }
4224 s.insert_range(next_selected_range);
4225 });
4226 } else {
4227 select_next_state.done = true;
4228 }
4229 }
4230
4231 self.select_next_state = Some(select_next_state);
4232 } else if selections.len() == 1 {
4233 let selection = selections.last_mut().unwrap();
4234 if selection.start == selection.end {
4235 let word_range = movement::surrounding_word(
4236 &display_map,
4237 selection.start.to_display_point(&display_map),
4238 );
4239 selection.start = word_range.start.to_offset(&display_map, Bias::Left);
4240 selection.end = word_range.end.to_offset(&display_map, Bias::Left);
4241 selection.goal = SelectionGoal::None;
4242 selection.reversed = false;
4243
4244 let query = buffer
4245 .text_for_range(selection.start..selection.end)
4246 .collect::<String>();
4247 let select_state = SelectNextState {
4248 query: AhoCorasick::new_auto_configured(&[query]),
4249 wordwise: true,
4250 done: false,
4251 };
4252 self.unfold_ranges([selection.start..selection.end], false, cx);
4253 self.change_selections(Some(Autoscroll::Newest), cx, |s| {
4254 s.select(selections);
4255 });
4256 self.select_next_state = Some(select_state);
4257 } else {
4258 let query = buffer
4259 .text_for_range(selection.start..selection.end)
4260 .collect::<String>();
4261 self.select_next_state = Some(SelectNextState {
4262 query: AhoCorasick::new_auto_configured(&[query]),
4263 wordwise: false,
4264 done: false,
4265 });
4266 self.select_next(action, cx);
4267 }
4268 }
4269 }
4270
4271 pub fn toggle_comments(&mut self, _: &ToggleComments, cx: &mut ViewContext<Self>) {
4272 self.transact(cx, |this, cx| {
4273 let mut selections = this.selections.all::<Point>(cx);
4274 let mut all_selection_lines_are_comments = true;
4275 let mut edit_ranges = Vec::new();
4276 let mut last_toggled_row = None;
4277 this.buffer.update(cx, |buffer, cx| {
4278 // TODO: Handle selections that cross excerpts
4279 for selection in &mut selections {
4280 // Get the line comment prefix. Split its trailing whitespace into a separate string,
4281 // as that portion won't be used for detecting if a line is a comment.
4282 let full_comment_prefix: Arc<str> = if let Some(prefix) = buffer
4283 .language_at(selection.start, cx)
4284 .and_then(|l| l.line_comment_prefix())
4285 {
4286 prefix.into()
4287 } else {
4288 return;
4289 };
4290 let comment_prefix = full_comment_prefix.trim_end_matches(' ');
4291 let comment_prefix_whitespace = &full_comment_prefix[comment_prefix.len()..];
4292 edit_ranges.clear();
4293 let snapshot = buffer.snapshot(cx);
4294
4295 let end_row =
4296 if selection.end.row > selection.start.row && selection.end.column == 0 {
4297 selection.end.row
4298 } else {
4299 selection.end.row + 1
4300 };
4301
4302 for row in selection.start.row..end_row {
4303 // If multiple selections contain a given row, avoid processing that
4304 // row more than once.
4305 if last_toggled_row == Some(row) {
4306 continue;
4307 } else {
4308 last_toggled_row = Some(row);
4309 }
4310
4311 if snapshot.is_line_blank(row) {
4312 continue;
4313 }
4314
4315 let start = Point::new(row, snapshot.indent_size_for_line(row).len);
4316 let mut line_bytes = snapshot
4317 .bytes_in_range(start..snapshot.max_point())
4318 .flatten()
4319 .copied();
4320
4321 // If this line currently begins with the line comment prefix, then record
4322 // the range containing the prefix.
4323 if all_selection_lines_are_comments
4324 && line_bytes
4325 .by_ref()
4326 .take(comment_prefix.len())
4327 .eq(comment_prefix.bytes())
4328 {
4329 // Include any whitespace that matches the comment prefix.
4330 let matching_whitespace_len = line_bytes
4331 .zip(comment_prefix_whitespace.bytes())
4332 .take_while(|(a, b)| a == b)
4333 .count()
4334 as u32;
4335 let end = Point::new(
4336 row,
4337 start.column
4338 + comment_prefix.len() as u32
4339 + matching_whitespace_len,
4340 );
4341 edit_ranges.push(start..end);
4342 }
4343 // If this line does not begin with the line comment prefix, then record
4344 // the position where the prefix should be inserted.
4345 else {
4346 all_selection_lines_are_comments = false;
4347 edit_ranges.push(start..start);
4348 }
4349 }
4350
4351 if !edit_ranges.is_empty() {
4352 if all_selection_lines_are_comments {
4353 let empty_str: Arc<str> = "".into();
4354 buffer.edit(
4355 edit_ranges
4356 .iter()
4357 .cloned()
4358 .map(|range| (range, empty_str.clone())),
4359 cx,
4360 );
4361 } else {
4362 let min_column =
4363 edit_ranges.iter().map(|r| r.start.column).min().unwrap();
4364 let edits = edit_ranges.iter().map(|range| {
4365 let position = Point::new(range.start.row, min_column);
4366 (position..position, full_comment_prefix.clone())
4367 });
4368 buffer.edit(edits, cx);
4369 }
4370 }
4371 }
4372 });
4373
4374 let selections = this.selections.all::<usize>(cx);
4375 this.change_selections(Some(Autoscroll::Fit), cx, |s| s.select(selections));
4376 });
4377 }
4378
4379 pub fn select_larger_syntax_node(
4380 &mut self,
4381 _: &SelectLargerSyntaxNode,
4382 cx: &mut ViewContext<Self>,
4383 ) {
4384 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
4385 let buffer = self.buffer.read(cx).snapshot(cx);
4386 let old_selections = self.selections.all::<usize>(cx).into_boxed_slice();
4387
4388 let mut stack = mem::take(&mut self.select_larger_syntax_node_stack);
4389 let mut selected_larger_node = false;
4390 let new_selections = old_selections
4391 .iter()
4392 .map(|selection| {
4393 let old_range = selection.start..selection.end;
4394 let mut new_range = old_range.clone();
4395 while let Some(containing_range) =
4396 buffer.range_for_syntax_ancestor(new_range.clone())
4397 {
4398 new_range = containing_range;
4399 if !display_map.intersects_fold(new_range.start)
4400 && !display_map.intersects_fold(new_range.end)
4401 {
4402 break;
4403 }
4404 }
4405
4406 selected_larger_node |= new_range != old_range;
4407 Selection {
4408 id: selection.id,
4409 start: new_range.start,
4410 end: new_range.end,
4411 goal: SelectionGoal::None,
4412 reversed: selection.reversed,
4413 }
4414 })
4415 .collect::<Vec<_>>();
4416
4417 if selected_larger_node {
4418 stack.push(old_selections);
4419 self.change_selections(Some(Autoscroll::Fit), cx, |s| {
4420 s.select(new_selections);
4421 });
4422 }
4423 self.select_larger_syntax_node_stack = stack;
4424 }
4425
4426 pub fn select_smaller_syntax_node(
4427 &mut self,
4428 _: &SelectSmallerSyntaxNode,
4429 cx: &mut ViewContext<Self>,
4430 ) {
4431 let mut stack = mem::take(&mut self.select_larger_syntax_node_stack);
4432 if let Some(selections) = stack.pop() {
4433 self.change_selections(Some(Autoscroll::Fit), cx, |s| {
4434 s.select(selections.to_vec());
4435 });
4436 }
4437 self.select_larger_syntax_node_stack = stack;
4438 }
4439
4440 pub fn move_to_enclosing_bracket(
4441 &mut self,
4442 _: &MoveToEnclosingBracket,
4443 cx: &mut ViewContext<Self>,
4444 ) {
4445 let buffer = self.buffer.read(cx).snapshot(cx);
4446 let mut selections = self.selections.all::<usize>(cx);
4447 for selection in &mut selections {
4448 if let Some((open_range, close_range)) =
4449 buffer.enclosing_bracket_ranges(selection.start..selection.end)
4450 {
4451 let close_range = close_range.to_inclusive();
4452 let destination = if close_range.contains(&selection.start)
4453 && close_range.contains(&selection.end)
4454 {
4455 open_range.end
4456 } else {
4457 *close_range.start()
4458 };
4459 selection.start = destination;
4460 selection.end = destination;
4461 }
4462 }
4463
4464 self.change_selections(Some(Autoscroll::Fit), cx, |s| {
4465 s.select(selections);
4466 });
4467 }
4468
4469 pub fn undo_selection(&mut self, _: &UndoSelection, cx: &mut ViewContext<Self>) {
4470 self.end_selection(cx);
4471 self.selection_history.mode = SelectionHistoryMode::Undoing;
4472 if let Some(entry) = self.selection_history.undo_stack.pop_back() {
4473 self.change_selections(None, cx, |s| s.select_anchors(entry.selections.to_vec()));
4474 self.select_next_state = entry.select_next_state;
4475 self.add_selections_state = entry.add_selections_state;
4476 self.request_autoscroll(Autoscroll::Newest, cx);
4477 }
4478 self.selection_history.mode = SelectionHistoryMode::Normal;
4479 }
4480
4481 pub fn redo_selection(&mut self, _: &RedoSelection, cx: &mut ViewContext<Self>) {
4482 self.end_selection(cx);
4483 self.selection_history.mode = SelectionHistoryMode::Redoing;
4484 if let Some(entry) = self.selection_history.redo_stack.pop_back() {
4485 self.change_selections(None, cx, |s| s.select_anchors(entry.selections.to_vec()));
4486 self.select_next_state = entry.select_next_state;
4487 self.add_selections_state = entry.add_selections_state;
4488 self.request_autoscroll(Autoscroll::Newest, cx);
4489 }
4490 self.selection_history.mode = SelectionHistoryMode::Normal;
4491 }
4492
4493 fn go_to_next_diagnostic(&mut self, _: &GoToNextDiagnostic, cx: &mut ViewContext<Self>) {
4494 self.go_to_diagnostic(Direction::Next, cx)
4495 }
4496
4497 fn go_to_prev_diagnostic(&mut self, _: &GoToPrevDiagnostic, cx: &mut ViewContext<Self>) {
4498 self.go_to_diagnostic(Direction::Prev, cx)
4499 }
4500
4501 pub fn go_to_diagnostic(&mut self, direction: Direction, cx: &mut ViewContext<Self>) {
4502 let buffer = self.buffer.read(cx).snapshot(cx);
4503 let selection = self.selections.newest::<usize>(cx);
4504 let mut active_primary_range = self.active_diagnostics.as_ref().map(|active_diagnostics| {
4505 active_diagnostics
4506 .primary_range
4507 .to_offset(&buffer)
4508 .to_inclusive()
4509 });
4510 let mut search_start = if let Some(active_primary_range) = active_primary_range.as_ref() {
4511 if active_primary_range.contains(&selection.head()) {
4512 *active_primary_range.end()
4513 } else {
4514 selection.head()
4515 }
4516 } else {
4517 selection.head()
4518 };
4519
4520 loop {
4521 let mut diagnostics = if direction == Direction::Prev {
4522 buffer.diagnostics_in_range::<_, usize>(0..search_start, true)
4523 } else {
4524 buffer.diagnostics_in_range::<_, usize>(search_start..buffer.len(), false)
4525 };
4526 let group = diagnostics.find_map(|entry| {
4527 if entry.diagnostic.is_primary
4528 && entry.diagnostic.severity <= DiagnosticSeverity::WARNING
4529 && !entry.range.is_empty()
4530 && Some(entry.range.end) != active_primary_range.as_ref().map(|r| *r.end())
4531 {
4532 Some((entry.range, entry.diagnostic.group_id))
4533 } else {
4534 None
4535 }
4536 });
4537
4538 if let Some((primary_range, group_id)) = group {
4539 self.activate_diagnostics(group_id, cx);
4540 self.change_selections(Some(Autoscroll::Center), cx, |s| {
4541 s.select(vec![Selection {
4542 id: selection.id,
4543 start: primary_range.start,
4544 end: primary_range.start,
4545 reversed: false,
4546 goal: SelectionGoal::None,
4547 }]);
4548 });
4549 break;
4550 } else {
4551 // Cycle around to the start of the buffer, potentially moving back to the start of
4552 // the currently active diagnostic.
4553 active_primary_range.take();
4554 if direction == Direction::Prev {
4555 if search_start == buffer.len() {
4556 break;
4557 } else {
4558 search_start = buffer.len();
4559 }
4560 } else {
4561 if search_start == 0 {
4562 break;
4563 } else {
4564 search_start = 0;
4565 }
4566 }
4567 }
4568 }
4569 }
4570
4571 pub fn go_to_definition(
4572 workspace: &mut Workspace,
4573 _: &GoToDefinition,
4574 cx: &mut ViewContext<Workspace>,
4575 ) {
4576 let active_item = workspace.active_item(cx);
4577 let editor_handle = if let Some(editor) = active_item
4578 .as_ref()
4579 .and_then(|item| item.act_as::<Self>(cx))
4580 {
4581 editor
4582 } else {
4583 return;
4584 };
4585
4586 let editor = editor_handle.read(cx);
4587 let buffer = editor.buffer.read(cx);
4588 let head = editor.selections.newest::<usize>(cx).head();
4589 let (buffer, head) = if let Some(text_anchor) = buffer.text_anchor_for_position(head, cx) {
4590 text_anchor
4591 } else {
4592 return;
4593 };
4594
4595 let project = workspace.project().clone();
4596 let definitions = project.update(cx, |project, cx| project.definition(&buffer, head, cx));
4597 cx.spawn(|workspace, mut cx| async move {
4598 let definitions = definitions.await?;
4599 workspace.update(&mut cx, |workspace, cx| {
4600 let nav_history = workspace.active_pane().read(cx).nav_history().clone();
4601 for definition in definitions {
4602 let range = definition.range.to_offset(definition.buffer.read(cx));
4603
4604 let target_editor_handle = workspace.open_project_item(definition.buffer, cx);
4605 target_editor_handle.update(cx, |target_editor, cx| {
4606 // When selecting a definition in a different buffer, disable the nav history
4607 // to avoid creating a history entry at the previous cursor location.
4608 if editor_handle != target_editor_handle {
4609 nav_history.borrow_mut().disable();
4610 }
4611 target_editor.change_selections(Some(Autoscroll::Center), cx, |s| {
4612 s.select_ranges([range]);
4613 });
4614
4615 nav_history.borrow_mut().enable();
4616 });
4617 }
4618 });
4619
4620 Ok::<(), anyhow::Error>(())
4621 })
4622 .detach_and_log_err(cx);
4623 }
4624
4625 pub fn find_all_references(
4626 workspace: &mut Workspace,
4627 _: &FindAllReferences,
4628 cx: &mut ViewContext<Workspace>,
4629 ) -> Option<Task<Result<()>>> {
4630 let active_item = workspace.active_item(cx)?;
4631 let editor_handle = active_item.act_as::<Self>(cx)?;
4632
4633 let editor = editor_handle.read(cx);
4634 let buffer = editor.buffer.read(cx);
4635 let head = editor.selections.newest::<usize>(cx).head();
4636 let (buffer, head) = buffer.text_anchor_for_position(head, cx)?;
4637 let replica_id = editor.replica_id(cx);
4638
4639 let project = workspace.project().clone();
4640 let references = project.update(cx, |project, cx| project.references(&buffer, head, cx));
4641 Some(cx.spawn(|workspace, mut cx| async move {
4642 let mut locations = references.await?;
4643 if locations.is_empty() {
4644 return Ok(());
4645 }
4646
4647 locations.sort_by_key(|location| location.buffer.id());
4648 let mut locations = locations.into_iter().peekable();
4649 let mut ranges_to_highlight = Vec::new();
4650
4651 let excerpt_buffer = cx.add_model(|cx| {
4652 let mut symbol_name = None;
4653 let mut multibuffer = MultiBuffer::new(replica_id);
4654 while let Some(location) = locations.next() {
4655 let buffer = location.buffer.read(cx);
4656 let mut ranges_for_buffer = Vec::new();
4657 let range = location.range.to_offset(buffer);
4658 ranges_for_buffer.push(range.clone());
4659 if symbol_name.is_none() {
4660 symbol_name = Some(buffer.text_for_range(range).collect::<String>());
4661 }
4662
4663 while let Some(next_location) = locations.peek() {
4664 if next_location.buffer == location.buffer {
4665 ranges_for_buffer.push(next_location.range.to_offset(buffer));
4666 locations.next();
4667 } else {
4668 break;
4669 }
4670 }
4671
4672 ranges_for_buffer.sort_by_key(|range| (range.start, Reverse(range.end)));
4673 ranges_to_highlight.extend(multibuffer.push_excerpts_with_context_lines(
4674 location.buffer.clone(),
4675 ranges_for_buffer,
4676 1,
4677 cx,
4678 ));
4679 }
4680 multibuffer.with_title(format!("References to `{}`", symbol_name.unwrap()))
4681 });
4682
4683 workspace.update(&mut cx, |workspace, cx| {
4684 let editor =
4685 cx.add_view(|cx| Editor::for_multibuffer(excerpt_buffer, Some(project), cx));
4686 editor.update(cx, |editor, cx| {
4687 editor.highlight_background::<Self>(
4688 ranges_to_highlight,
4689 |theme| theme.editor.highlighted_line_background,
4690 cx,
4691 );
4692 });
4693 workspace.add_item(Box::new(editor), cx);
4694 });
4695
4696 Ok(())
4697 }))
4698 }
4699
4700 pub fn rename(&mut self, _: &Rename, cx: &mut ViewContext<Self>) -> Option<Task<Result<()>>> {
4701 use language::ToOffset as _;
4702
4703 let project = self.project.clone()?;
4704 let selection = self.selections.newest_anchor().clone();
4705 let (cursor_buffer, cursor_buffer_position) = self
4706 .buffer
4707 .read(cx)
4708 .text_anchor_for_position(selection.head(), cx)?;
4709 let (tail_buffer, _) = self
4710 .buffer
4711 .read(cx)
4712 .text_anchor_for_position(selection.tail(), cx)?;
4713 if tail_buffer != cursor_buffer {
4714 return None;
4715 }
4716
4717 let snapshot = cursor_buffer.read(cx).snapshot();
4718 let cursor_buffer_offset = cursor_buffer_position.to_offset(&snapshot);
4719 let prepare_rename = project.update(cx, |project, cx| {
4720 project.prepare_rename(cursor_buffer, cursor_buffer_offset, cx)
4721 });
4722
4723 Some(cx.spawn(|this, mut cx| async move {
4724 let rename_range = if let Some(range) = prepare_rename.await? {
4725 Some(range)
4726 } else {
4727 this.read_with(&cx, |this, cx| {
4728 let buffer = this.buffer.read(cx).snapshot(cx);
4729 let mut buffer_highlights = this
4730 .document_highlights_for_position(selection.head(), &buffer)
4731 .filter(|highlight| {
4732 highlight.start.excerpt_id() == selection.head().excerpt_id()
4733 && highlight.end.excerpt_id() == selection.head().excerpt_id()
4734 });
4735 buffer_highlights
4736 .next()
4737 .map(|highlight| highlight.start.text_anchor..highlight.end.text_anchor)
4738 })
4739 };
4740 if let Some(rename_range) = rename_range {
4741 let rename_buffer_range = rename_range.to_offset(&snapshot);
4742 let cursor_offset_in_rename_range =
4743 cursor_buffer_offset.saturating_sub(rename_buffer_range.start);
4744
4745 this.update(&mut cx, |this, cx| {
4746 this.take_rename(false, cx);
4747 let style = this.style(cx);
4748 let buffer = this.buffer.read(cx).read(cx);
4749 let cursor_offset = selection.head().to_offset(&buffer);
4750 let rename_start = cursor_offset.saturating_sub(cursor_offset_in_rename_range);
4751 let rename_end = rename_start + rename_buffer_range.len();
4752 let range = buffer.anchor_before(rename_start)..buffer.anchor_after(rename_end);
4753 let mut old_highlight_id = None;
4754 let old_name: Arc<str> = buffer
4755 .chunks(rename_start..rename_end, true)
4756 .map(|chunk| {
4757 if old_highlight_id.is_none() {
4758 old_highlight_id = chunk.syntax_highlight_id;
4759 }
4760 chunk.text
4761 })
4762 .collect::<String>()
4763 .into();
4764
4765 drop(buffer);
4766
4767 // Position the selection in the rename editor so that it matches the current selection.
4768 this.show_local_selections = false;
4769 let rename_editor = cx.add_view(|cx| {
4770 let mut editor = Editor::single_line(None, cx);
4771 if let Some(old_highlight_id) = old_highlight_id {
4772 editor.override_text_style =
4773 Some(Box::new(move |style| old_highlight_id.style(&style.syntax)));
4774 }
4775 editor
4776 .buffer
4777 .update(cx, |buffer, cx| buffer.edit([(0..0, old_name.clone())], cx));
4778 editor.select_all(&SelectAll, cx);
4779 editor
4780 });
4781
4782 let ranges = this
4783 .clear_background_highlights::<DocumentHighlightWrite>(cx)
4784 .into_iter()
4785 .flat_map(|(_, ranges)| ranges)
4786 .chain(
4787 this.clear_background_highlights::<DocumentHighlightRead>(cx)
4788 .into_iter()
4789 .flat_map(|(_, ranges)| ranges),
4790 )
4791 .collect();
4792
4793 this.highlight_text::<Rename>(
4794 ranges,
4795 HighlightStyle {
4796 fade_out: Some(style.rename_fade),
4797 ..Default::default()
4798 },
4799 cx,
4800 );
4801 cx.focus(&rename_editor);
4802 let block_id = this.insert_blocks(
4803 [BlockProperties {
4804 position: range.start.clone(),
4805 height: 1,
4806 render: Arc::new({
4807 let editor = rename_editor.clone();
4808 move |cx: &mut BlockContext| {
4809 ChildView::new(editor.clone())
4810 .contained()
4811 .with_padding_left(cx.anchor_x)
4812 .boxed()
4813 }
4814 }),
4815 disposition: BlockDisposition::Below,
4816 }],
4817 cx,
4818 )[0];
4819 this.pending_rename = Some(RenameState {
4820 range,
4821 old_name,
4822 editor: rename_editor,
4823 block_id,
4824 });
4825 });
4826 }
4827
4828 Ok(())
4829 }))
4830 }
4831
4832 pub fn confirm_rename(
4833 workspace: &mut Workspace,
4834 _: &ConfirmRename,
4835 cx: &mut ViewContext<Workspace>,
4836 ) -> Option<Task<Result<()>>> {
4837 let editor = workspace.active_item(cx)?.act_as::<Editor>(cx)?;
4838
4839 let (buffer, range, old_name, new_name) = editor.update(cx, |editor, cx| {
4840 let rename = editor.take_rename(false, cx)?;
4841 let buffer = editor.buffer.read(cx);
4842 let (start_buffer, start) =
4843 buffer.text_anchor_for_position(rename.range.start.clone(), cx)?;
4844 let (end_buffer, end) =
4845 buffer.text_anchor_for_position(rename.range.end.clone(), cx)?;
4846 if start_buffer == end_buffer {
4847 let new_name = rename.editor.read(cx).text(cx);
4848 Some((start_buffer, start..end, rename.old_name, new_name))
4849 } else {
4850 None
4851 }
4852 })?;
4853
4854 let rename = workspace.project().clone().update(cx, |project, cx| {
4855 project.perform_rename(
4856 buffer.clone(),
4857 range.start.clone(),
4858 new_name.clone(),
4859 true,
4860 cx,
4861 )
4862 });
4863
4864 Some(cx.spawn(|workspace, mut cx| async move {
4865 let project_transaction = rename.await?;
4866 Self::open_project_transaction(
4867 editor.clone(),
4868 workspace,
4869 project_transaction,
4870 format!("Rename: {} → {}", old_name, new_name),
4871 cx.clone(),
4872 )
4873 .await?;
4874
4875 editor.update(&mut cx, |editor, cx| {
4876 editor.refresh_document_highlights(cx);
4877 });
4878 Ok(())
4879 }))
4880 }
4881
4882 fn take_rename(
4883 &mut self,
4884 moving_cursor: bool,
4885 cx: &mut ViewContext<Self>,
4886 ) -> Option<RenameState> {
4887 let rename = self.pending_rename.take()?;
4888 self.remove_blocks([rename.block_id].into_iter().collect(), cx);
4889 self.clear_text_highlights::<Rename>(cx);
4890 self.show_local_selections = true;
4891
4892 if moving_cursor {
4893 let rename_editor = rename.editor.read(cx);
4894 let cursor_in_rename_editor = rename_editor.selections.newest::<usize>(cx).head();
4895
4896 // Update the selection to match the position of the selection inside
4897 // the rename editor.
4898 let snapshot = self.buffer.read(cx).read(cx);
4899 let rename_range = rename.range.to_offset(&snapshot);
4900 let cursor_in_editor = snapshot
4901 .clip_offset(rename_range.start + cursor_in_rename_editor, Bias::Left)
4902 .min(rename_range.end);
4903 drop(snapshot);
4904
4905 self.change_selections(None, cx, |s| {
4906 s.select_ranges(vec![cursor_in_editor..cursor_in_editor])
4907 });
4908 }
4909
4910 Some(rename)
4911 }
4912
4913 #[cfg(any(test, feature = "test-support"))]
4914 pub fn pending_rename(&self) -> Option<&RenameState> {
4915 self.pending_rename.as_ref()
4916 }
4917
4918 fn restart_language_server(&mut self, _: &RestartLanguageServer, cx: &mut ViewContext<Self>) {
4919 if let Some(project) = self.project.clone() {
4920 self.buffer.update(cx, |multi_buffer, cx| {
4921 project.update(cx, |project, cx| {
4922 project.restart_language_servers_for_buffers(multi_buffer.all_buffers(), cx);
4923 });
4924 })
4925 }
4926 }
4927
4928 fn refresh_active_diagnostics(&mut self, cx: &mut ViewContext<Editor>) {
4929 if let Some(active_diagnostics) = self.active_diagnostics.as_mut() {
4930 let buffer = self.buffer.read(cx).snapshot(cx);
4931 let primary_range_start = active_diagnostics.primary_range.start.to_offset(&buffer);
4932 let is_valid = buffer
4933 .diagnostics_in_range::<_, usize>(active_diagnostics.primary_range.clone(), false)
4934 .any(|entry| {
4935 entry.diagnostic.is_primary
4936 && !entry.range.is_empty()
4937 && entry.range.start == primary_range_start
4938 && entry.diagnostic.message == active_diagnostics.primary_message
4939 });
4940
4941 if is_valid != active_diagnostics.is_valid {
4942 active_diagnostics.is_valid = is_valid;
4943 let mut new_styles = HashMap::default();
4944 for (block_id, diagnostic) in &active_diagnostics.blocks {
4945 new_styles.insert(
4946 *block_id,
4947 diagnostic_block_renderer(diagnostic.clone(), is_valid),
4948 );
4949 }
4950 self.display_map
4951 .update(cx, |display_map, _| display_map.replace_blocks(new_styles));
4952 }
4953 }
4954 }
4955
4956 fn activate_diagnostics(&mut self, group_id: usize, cx: &mut ViewContext<Self>) {
4957 self.dismiss_diagnostics(cx);
4958 self.active_diagnostics = self.display_map.update(cx, |display_map, cx| {
4959 let buffer = self.buffer.read(cx).snapshot(cx);
4960
4961 let mut primary_range = None;
4962 let mut primary_message = None;
4963 let mut group_end = Point::zero();
4964 let diagnostic_group = buffer
4965 .diagnostic_group::<Point>(group_id)
4966 .map(|entry| {
4967 if entry.range.end > group_end {
4968 group_end = entry.range.end;
4969 }
4970 if entry.diagnostic.is_primary {
4971 primary_range = Some(entry.range.clone());
4972 primary_message = Some(entry.diagnostic.message.clone());
4973 }
4974 entry
4975 })
4976 .collect::<Vec<_>>();
4977 let primary_range = primary_range.unwrap();
4978 let primary_message = primary_message.unwrap();
4979 let primary_range =
4980 buffer.anchor_after(primary_range.start)..buffer.anchor_before(primary_range.end);
4981
4982 let blocks = display_map
4983 .insert_blocks(
4984 diagnostic_group.iter().map(|entry| {
4985 let diagnostic = entry.diagnostic.clone();
4986 let message_height = diagnostic.message.lines().count() as u8;
4987 BlockProperties {
4988 position: buffer.anchor_after(entry.range.start),
4989 height: message_height,
4990 render: diagnostic_block_renderer(diagnostic, true),
4991 disposition: BlockDisposition::Below,
4992 }
4993 }),
4994 cx,
4995 )
4996 .into_iter()
4997 .zip(diagnostic_group.into_iter().map(|entry| entry.diagnostic))
4998 .collect();
4999
5000 Some(ActiveDiagnosticGroup {
5001 primary_range,
5002 primary_message,
5003 blocks,
5004 is_valid: true,
5005 })
5006 });
5007 }
5008
5009 fn dismiss_diagnostics(&mut self, cx: &mut ViewContext<Self>) {
5010 if let Some(active_diagnostic_group) = self.active_diagnostics.take() {
5011 self.display_map.update(cx, |display_map, cx| {
5012 display_map.remove_blocks(active_diagnostic_group.blocks.into_keys().collect(), cx);
5013 });
5014 cx.notify();
5015 }
5016 }
5017
5018 pub fn set_selections_from_remote(
5019 &mut self,
5020 selections: Vec<Selection<Anchor>>,
5021 cx: &mut ViewContext<Self>,
5022 ) {
5023 let old_cursor_position = self.selections.newest_anchor().head();
5024 self.selections.change_with(cx, |s| {
5025 s.select_anchors(selections);
5026 });
5027 self.selections_did_change(false, &old_cursor_position, cx);
5028 }
5029
5030 fn push_to_selection_history(&mut self) {
5031 self.selection_history.push(SelectionHistoryEntry {
5032 selections: self.selections.disjoint_anchors().clone(),
5033 select_next_state: self.select_next_state.clone(),
5034 add_selections_state: self.add_selections_state.clone(),
5035 });
5036 }
5037
5038 pub fn request_autoscroll(&mut self, autoscroll: Autoscroll, cx: &mut ViewContext<Self>) {
5039 self.autoscroll_request = Some((autoscroll, true));
5040 cx.notify();
5041 }
5042
5043 fn request_autoscroll_remotely(&mut self, autoscroll: Autoscroll, cx: &mut ViewContext<Self>) {
5044 self.autoscroll_request = Some((autoscroll, false));
5045 cx.notify();
5046 }
5047
5048 pub fn transact(
5049 &mut self,
5050 cx: &mut ViewContext<Self>,
5051 update: impl FnOnce(&mut Self, &mut ViewContext<Self>),
5052 ) {
5053 self.start_transaction_at(Instant::now(), cx);
5054 update(self, cx);
5055 self.end_transaction_at(Instant::now(), cx);
5056 }
5057
5058 fn start_transaction_at(&mut self, now: Instant, cx: &mut ViewContext<Self>) {
5059 self.end_selection(cx);
5060 if let Some(tx_id) = self
5061 .buffer
5062 .update(cx, |buffer, cx| buffer.start_transaction_at(now, cx))
5063 {
5064 self.selection_history
5065 .insert_transaction(tx_id, self.selections.disjoint_anchors().clone());
5066 }
5067 }
5068
5069 fn end_transaction_at(&mut self, now: Instant, cx: &mut ViewContext<Self>) {
5070 if let Some(tx_id) = self
5071 .buffer
5072 .update(cx, |buffer, cx| buffer.end_transaction_at(now, cx))
5073 {
5074 if let Some((_, end_selections)) = self.selection_history.transaction_mut(tx_id) {
5075 *end_selections = Some(self.selections.disjoint_anchors().clone());
5076 } else {
5077 log::error!("unexpectedly ended a transaction that wasn't started by this editor");
5078 }
5079
5080 cx.emit(Event::Edited);
5081 }
5082 }
5083
5084 pub fn page_up(&mut self, _: &PageUp, _: &mut ViewContext<Self>) {
5085 log::info!("Editor::page_up");
5086 }
5087
5088 pub fn page_down(&mut self, _: &PageDown, _: &mut ViewContext<Self>) {
5089 log::info!("Editor::page_down");
5090 }
5091
5092 pub fn fold(&mut self, _: &Fold, cx: &mut ViewContext<Self>) {
5093 let mut fold_ranges = Vec::new();
5094
5095 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
5096 let selections = self.selections.all::<Point>(cx);
5097 for selection in selections {
5098 let range = selection.display_range(&display_map).sorted();
5099 let buffer_start_row = range.start.to_point(&display_map).row;
5100
5101 for row in (0..=range.end.row()).rev() {
5102 if self.is_line_foldable(&display_map, row) && !display_map.is_line_folded(row) {
5103 let fold_range = self.foldable_range_for_line(&display_map, row);
5104 if fold_range.end.row >= buffer_start_row {
5105 fold_ranges.push(fold_range);
5106 if row <= range.start.row() {
5107 break;
5108 }
5109 }
5110 }
5111 }
5112 }
5113
5114 self.fold_ranges(fold_ranges, cx);
5115 }
5116
5117 pub fn unfold_lines(&mut self, _: &UnfoldLines, cx: &mut ViewContext<Self>) {
5118 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
5119 let buffer = &display_map.buffer_snapshot;
5120 let selections = self.selections.all::<Point>(cx);
5121 let ranges = selections
5122 .iter()
5123 .map(|s| {
5124 let range = s.display_range(&display_map).sorted();
5125 let mut start = range.start.to_point(&display_map);
5126 let mut end = range.end.to_point(&display_map);
5127 start.column = 0;
5128 end.column = buffer.line_len(end.row);
5129 start..end
5130 })
5131 .collect::<Vec<_>>();
5132 self.unfold_ranges(ranges, true, cx);
5133 }
5134
5135 fn is_line_foldable(&self, display_map: &DisplaySnapshot, display_row: u32) -> bool {
5136 let max_point = display_map.max_point();
5137 if display_row >= max_point.row() {
5138 false
5139 } else {
5140 let (start_indent, is_blank) = display_map.line_indent(display_row);
5141 if is_blank {
5142 false
5143 } else {
5144 for display_row in display_row + 1..=max_point.row() {
5145 let (indent, is_blank) = display_map.line_indent(display_row);
5146 if !is_blank {
5147 return indent > start_indent;
5148 }
5149 }
5150 false
5151 }
5152 }
5153 }
5154
5155 fn foldable_range_for_line(
5156 &self,
5157 display_map: &DisplaySnapshot,
5158 start_row: u32,
5159 ) -> Range<Point> {
5160 let max_point = display_map.max_point();
5161
5162 let (start_indent, _) = display_map.line_indent(start_row);
5163 let start = DisplayPoint::new(start_row, display_map.line_len(start_row));
5164 let mut end = None;
5165 for row in start_row + 1..=max_point.row() {
5166 let (indent, is_blank) = display_map.line_indent(row);
5167 if !is_blank && indent <= start_indent {
5168 end = Some(DisplayPoint::new(row - 1, display_map.line_len(row - 1)));
5169 break;
5170 }
5171 }
5172
5173 let end = end.unwrap_or(max_point);
5174 return start.to_point(display_map)..end.to_point(display_map);
5175 }
5176
5177 pub fn fold_selected_ranges(&mut self, _: &FoldSelectedRanges, cx: &mut ViewContext<Self>) {
5178 let selections = self.selections.all::<Point>(cx);
5179 let ranges = selections.into_iter().map(|s| s.start..s.end);
5180 self.fold_ranges(ranges, cx);
5181 }
5182
5183 pub fn fold_ranges<T: ToOffset>(
5184 &mut self,
5185 ranges: impl IntoIterator<Item = Range<T>>,
5186 cx: &mut ViewContext<Self>,
5187 ) {
5188 let mut ranges = ranges.into_iter().peekable();
5189 if ranges.peek().is_some() {
5190 self.display_map.update(cx, |map, cx| map.fold(ranges, cx));
5191 self.request_autoscroll(Autoscroll::Fit, cx);
5192 cx.notify();
5193 }
5194 }
5195
5196 pub fn unfold_ranges<T: ToOffset>(
5197 &mut self,
5198 ranges: impl IntoIterator<Item = Range<T>>,
5199 inclusive: bool,
5200 cx: &mut ViewContext<Self>,
5201 ) {
5202 let mut ranges = ranges.into_iter().peekable();
5203 if ranges.peek().is_some() {
5204 self.display_map
5205 .update(cx, |map, cx| map.unfold(ranges, inclusive, cx));
5206 self.request_autoscroll(Autoscroll::Fit, cx);
5207 cx.notify();
5208 }
5209 }
5210
5211 pub fn insert_blocks(
5212 &mut self,
5213 blocks: impl IntoIterator<Item = BlockProperties<Anchor>>,
5214 cx: &mut ViewContext<Self>,
5215 ) -> Vec<BlockId> {
5216 let blocks = self
5217 .display_map
5218 .update(cx, |display_map, cx| display_map.insert_blocks(blocks, cx));
5219 self.request_autoscroll(Autoscroll::Fit, cx);
5220 blocks
5221 }
5222
5223 pub fn replace_blocks(
5224 &mut self,
5225 blocks: HashMap<BlockId, RenderBlock>,
5226 cx: &mut ViewContext<Self>,
5227 ) {
5228 self.display_map
5229 .update(cx, |display_map, _| display_map.replace_blocks(blocks));
5230 self.request_autoscroll(Autoscroll::Fit, cx);
5231 }
5232
5233 pub fn remove_blocks(&mut self, block_ids: HashSet<BlockId>, cx: &mut ViewContext<Self>) {
5234 self.display_map.update(cx, |display_map, cx| {
5235 display_map.remove_blocks(block_ids, cx)
5236 });
5237 }
5238
5239 pub fn longest_row(&self, cx: &mut MutableAppContext) -> u32 {
5240 self.display_map
5241 .update(cx, |map, cx| map.snapshot(cx))
5242 .longest_row()
5243 }
5244
5245 pub fn max_point(&self, cx: &mut MutableAppContext) -> DisplayPoint {
5246 self.display_map
5247 .update(cx, |map, cx| map.snapshot(cx))
5248 .max_point()
5249 }
5250
5251 pub fn text(&self, cx: &AppContext) -> String {
5252 self.buffer.read(cx).read(cx).text()
5253 }
5254
5255 pub fn set_text(&mut self, text: impl Into<Arc<str>>, cx: &mut ViewContext<Self>) {
5256 self.transact(cx, |this, cx| {
5257 this.buffer
5258 .read(cx)
5259 .as_singleton()
5260 .expect("you can only call set_text on editors for singleton buffers")
5261 .update(cx, |buffer, cx| buffer.set_text(text, cx));
5262 });
5263 }
5264
5265 pub fn display_text(&self, cx: &mut MutableAppContext) -> String {
5266 self.display_map
5267 .update(cx, |map, cx| map.snapshot(cx))
5268 .text()
5269 }
5270
5271 pub fn soft_wrap_mode(&self, cx: &AppContext) -> SoftWrap {
5272 let language_name = self
5273 .buffer
5274 .read(cx)
5275 .as_singleton()
5276 .and_then(|singleton_buffer| singleton_buffer.read(cx).language())
5277 .map(|l| l.name());
5278
5279 let settings = cx.global::<Settings>();
5280 let mode = self
5281 .soft_wrap_mode_override
5282 .unwrap_or_else(|| settings.soft_wrap(language_name.as_deref()));
5283 match mode {
5284 settings::SoftWrap::None => SoftWrap::None,
5285 settings::SoftWrap::EditorWidth => SoftWrap::EditorWidth,
5286 settings::SoftWrap::PreferredLineLength => {
5287 SoftWrap::Column(settings.preferred_line_length(language_name.as_deref()))
5288 }
5289 }
5290 }
5291
5292 pub fn set_soft_wrap_mode(&mut self, mode: settings::SoftWrap, cx: &mut ViewContext<Self>) {
5293 self.soft_wrap_mode_override = Some(mode);
5294 cx.notify();
5295 }
5296
5297 pub fn set_wrap_width(&self, width: Option<f32>, cx: &mut MutableAppContext) -> bool {
5298 self.display_map
5299 .update(cx, |map, cx| map.set_wrap_width(width, cx))
5300 }
5301
5302 pub fn highlight_rows(&mut self, rows: Option<Range<u32>>) {
5303 self.highlighted_rows = rows;
5304 }
5305
5306 pub fn highlighted_rows(&self) -> Option<Range<u32>> {
5307 self.highlighted_rows.clone()
5308 }
5309
5310 pub fn highlight_background<T: 'static>(
5311 &mut self,
5312 ranges: Vec<Range<Anchor>>,
5313 color_fetcher: fn(&Theme) -> Color,
5314 cx: &mut ViewContext<Self>,
5315 ) {
5316 self.background_highlights
5317 .insert(TypeId::of::<T>(), (color_fetcher, ranges));
5318 cx.notify();
5319 }
5320
5321 pub fn clear_background_highlights<T: 'static>(
5322 &mut self,
5323 cx: &mut ViewContext<Self>,
5324 ) -> Option<(fn(&Theme) -> Color, Vec<Range<Anchor>>)> {
5325 cx.notify();
5326 self.background_highlights.remove(&TypeId::of::<T>())
5327 }
5328
5329 #[cfg(feature = "test-support")]
5330 pub fn all_background_highlights(
5331 &mut self,
5332 cx: &mut ViewContext<Self>,
5333 ) -> Vec<(Range<DisplayPoint>, Color)> {
5334 let snapshot = self.snapshot(cx);
5335 let buffer = &snapshot.buffer_snapshot;
5336 let start = buffer.anchor_before(0);
5337 let end = buffer.anchor_after(buffer.len());
5338 let theme = cx.global::<Settings>().theme.as_ref();
5339 self.background_highlights_in_range(start..end, &snapshot, theme)
5340 }
5341
5342 fn document_highlights_for_position<'a>(
5343 &'a self,
5344 position: Anchor,
5345 buffer: &'a MultiBufferSnapshot,
5346 ) -> impl 'a + Iterator<Item = &Range<Anchor>> {
5347 let read_highlights = self
5348 .background_highlights
5349 .get(&TypeId::of::<DocumentHighlightRead>())
5350 .map(|h| &h.1);
5351 let write_highlights = self
5352 .background_highlights
5353 .get(&TypeId::of::<DocumentHighlightRead>())
5354 .map(|h| &h.1);
5355 let left_position = position.bias_left(buffer);
5356 let right_position = position.bias_right(buffer);
5357 read_highlights
5358 .into_iter()
5359 .chain(write_highlights)
5360 .flat_map(move |ranges| {
5361 let start_ix = match ranges.binary_search_by(|probe| {
5362 let cmp = probe.end.cmp(&left_position, &buffer);
5363 if cmp.is_ge() {
5364 Ordering::Greater
5365 } else {
5366 Ordering::Less
5367 }
5368 }) {
5369 Ok(i) | Err(i) => i,
5370 };
5371
5372 let right_position = right_position.clone();
5373 ranges[start_ix..]
5374 .iter()
5375 .take_while(move |range| range.start.cmp(&right_position, &buffer).is_le())
5376 })
5377 }
5378
5379 pub fn background_highlights_in_range(
5380 &self,
5381 search_range: Range<Anchor>,
5382 display_snapshot: &DisplaySnapshot,
5383 theme: &Theme,
5384 ) -> Vec<(Range<DisplayPoint>, Color)> {
5385 let mut results = Vec::new();
5386 let buffer = &display_snapshot.buffer_snapshot;
5387 for (color_fetcher, ranges) in self.background_highlights.values() {
5388 let color = color_fetcher(theme);
5389 let start_ix = match ranges.binary_search_by(|probe| {
5390 let cmp = probe.end.cmp(&search_range.start, &buffer);
5391 if cmp.is_gt() {
5392 Ordering::Greater
5393 } else {
5394 Ordering::Less
5395 }
5396 }) {
5397 Ok(i) | Err(i) => i,
5398 };
5399 for range in &ranges[start_ix..] {
5400 if range.start.cmp(&search_range.end, &buffer).is_ge() {
5401 break;
5402 }
5403 let start = range
5404 .start
5405 .to_point(buffer)
5406 .to_display_point(display_snapshot);
5407 let end = range
5408 .end
5409 .to_point(buffer)
5410 .to_display_point(display_snapshot);
5411 results.push((start..end, color))
5412 }
5413 }
5414 results
5415 }
5416
5417 pub fn highlight_text<T: 'static>(
5418 &mut self,
5419 ranges: Vec<Range<Anchor>>,
5420 style: HighlightStyle,
5421 cx: &mut ViewContext<Self>,
5422 ) {
5423 self.display_map.update(cx, |map, _| {
5424 map.highlight_text(TypeId::of::<T>(), ranges, style)
5425 });
5426 cx.notify();
5427 }
5428
5429 pub fn clear_text_highlights<T: 'static>(
5430 &mut self,
5431 cx: &mut ViewContext<Self>,
5432 ) -> Option<Arc<(HighlightStyle, Vec<Range<Anchor>>)>> {
5433 cx.notify();
5434 self.display_map
5435 .update(cx, |map, _| map.clear_text_highlights(TypeId::of::<T>()))
5436 }
5437
5438 fn next_blink_epoch(&mut self) -> usize {
5439 self.blink_epoch += 1;
5440 self.blink_epoch
5441 }
5442
5443 fn pause_cursor_blinking(&mut self, cx: &mut ViewContext<Self>) {
5444 if !self.focused {
5445 return;
5446 }
5447
5448 self.show_local_cursors = true;
5449 cx.notify();
5450
5451 let epoch = self.next_blink_epoch();
5452 cx.spawn(|this, mut cx| {
5453 let this = this.downgrade();
5454 async move {
5455 Timer::after(CURSOR_BLINK_INTERVAL).await;
5456 if let Some(this) = this.upgrade(&cx) {
5457 this.update(&mut cx, |this, cx| this.resume_cursor_blinking(epoch, cx))
5458 }
5459 }
5460 })
5461 .detach();
5462 }
5463
5464 fn resume_cursor_blinking(&mut self, epoch: usize, cx: &mut ViewContext<Self>) {
5465 if epoch == self.blink_epoch {
5466 self.blinking_paused = false;
5467 self.blink_cursors(epoch, cx);
5468 }
5469 }
5470
5471 fn blink_cursors(&mut self, epoch: usize, cx: &mut ViewContext<Self>) {
5472 if epoch == self.blink_epoch && self.focused && !self.blinking_paused {
5473 self.show_local_cursors = !self.show_local_cursors;
5474 cx.notify();
5475
5476 let epoch = self.next_blink_epoch();
5477 cx.spawn(|this, mut cx| {
5478 let this = this.downgrade();
5479 async move {
5480 Timer::after(CURSOR_BLINK_INTERVAL).await;
5481 if let Some(this) = this.upgrade(&cx) {
5482 this.update(&mut cx, |this, cx| this.blink_cursors(epoch, cx));
5483 }
5484 }
5485 })
5486 .detach();
5487 }
5488 }
5489
5490 pub fn show_local_cursors(&self) -> bool {
5491 self.show_local_cursors && self.focused
5492 }
5493
5494 fn on_buffer_changed(&mut self, _: ModelHandle<MultiBuffer>, cx: &mut ViewContext<Self>) {
5495 cx.notify();
5496 }
5497
5498 fn on_buffer_event(
5499 &mut self,
5500 _: ModelHandle<MultiBuffer>,
5501 event: &language::Event,
5502 cx: &mut ViewContext<Self>,
5503 ) {
5504 match event {
5505 language::Event::Edited => {
5506 self.refresh_active_diagnostics(cx);
5507 self.refresh_code_actions(cx);
5508 cx.emit(Event::BufferEdited);
5509 }
5510 language::Event::Reparsed => cx.emit(Event::Reparsed),
5511 language::Event::Dirtied => cx.emit(Event::Dirtied),
5512 language::Event::Saved => cx.emit(Event::Saved),
5513 language::Event::FileHandleChanged => cx.emit(Event::TitleChanged),
5514 language::Event::Reloaded => cx.emit(Event::TitleChanged),
5515 language::Event::Closed => cx.emit(Event::Closed),
5516 language::Event::DiagnosticsUpdated => {
5517 self.refresh_active_diagnostics(cx);
5518 }
5519 _ => {}
5520 }
5521 }
5522
5523 fn on_display_map_changed(&mut self, _: ModelHandle<DisplayMap>, cx: &mut ViewContext<Self>) {
5524 cx.notify();
5525 }
5526
5527 pub fn set_searchable(&mut self, searchable: bool) {
5528 self.searchable = searchable;
5529 }
5530
5531 pub fn searchable(&self) -> bool {
5532 self.searchable
5533 }
5534
5535 fn open_excerpts(workspace: &mut Workspace, _: &OpenExcerpts, cx: &mut ViewContext<Workspace>) {
5536 let active_item = workspace.active_item(cx);
5537 let editor_handle = if let Some(editor) = active_item
5538 .as_ref()
5539 .and_then(|item| item.act_as::<Self>(cx))
5540 {
5541 editor
5542 } else {
5543 cx.propagate_action();
5544 return;
5545 };
5546
5547 let editor = editor_handle.read(cx);
5548 let buffer = editor.buffer.read(cx);
5549 if buffer.is_singleton() {
5550 cx.propagate_action();
5551 return;
5552 }
5553
5554 let mut new_selections_by_buffer = HashMap::default();
5555 for selection in editor.selections.all::<usize>(cx) {
5556 for (buffer, mut range) in
5557 buffer.range_to_buffer_ranges(selection.start..selection.end, cx)
5558 {
5559 if selection.reversed {
5560 mem::swap(&mut range.start, &mut range.end);
5561 }
5562 new_selections_by_buffer
5563 .entry(buffer)
5564 .or_insert(Vec::new())
5565 .push(range)
5566 }
5567 }
5568
5569 editor_handle.update(cx, |editor, cx| {
5570 editor.push_to_nav_history(editor.selections.newest_anchor().head(), None, cx);
5571 });
5572 let nav_history = workspace.active_pane().read(cx).nav_history().clone();
5573 nav_history.borrow_mut().disable();
5574
5575 // We defer the pane interaction because we ourselves are a workspace item
5576 // and activating a new item causes the pane to call a method on us reentrantly,
5577 // which panics if we're on the stack.
5578 cx.defer(move |workspace, cx| {
5579 for (buffer, ranges) in new_selections_by_buffer.into_iter() {
5580 let editor = workspace.open_project_item::<Self>(buffer, cx);
5581 editor.update(cx, |editor, cx| {
5582 editor.change_selections(Some(Autoscroll::Newest), cx, |s| {
5583 s.select_ranges(ranges);
5584 });
5585 });
5586 }
5587
5588 nav_history.borrow_mut().enable();
5589 });
5590 }
5591
5592 fn jump(workspace: &mut Workspace, action: &Jump, cx: &mut ViewContext<Workspace>) {
5593 let editor = workspace.open_path(action.path.clone(), true, cx);
5594 let position = action.position;
5595 let anchor = action.anchor;
5596 cx.spawn_weak(|_, mut cx| async move {
5597 let editor = editor.await.log_err()?.downcast::<Editor>()?;
5598 editor.update(&mut cx, |editor, cx| {
5599 let buffer = editor.buffer().read(cx).as_singleton()?;
5600 let buffer = buffer.read(cx);
5601 let cursor = if buffer.can_resolve(&anchor) {
5602 language::ToPoint::to_point(&anchor, buffer)
5603 } else {
5604 buffer.clip_point(position, Bias::Left)
5605 };
5606
5607 let nav_history = editor.nav_history.take();
5608 editor.change_selections(Some(Autoscroll::Newest), cx, |s| {
5609 s.select_ranges([cursor..cursor]);
5610 });
5611 editor.nav_history = nav_history;
5612
5613 Some(())
5614 })?;
5615 Some(())
5616 })
5617 .detach()
5618 }
5619}
5620
5621impl EditorSnapshot {
5622 pub fn is_focused(&self) -> bool {
5623 self.is_focused
5624 }
5625
5626 pub fn placeholder_text(&self) -> Option<&Arc<str>> {
5627 self.placeholder_text.as_ref()
5628 }
5629
5630 pub fn scroll_position(&self) -> Vector2F {
5631 compute_scroll_position(
5632 &self.display_snapshot,
5633 self.scroll_position,
5634 &self.scroll_top_anchor,
5635 )
5636 }
5637}
5638
5639impl Deref for EditorSnapshot {
5640 type Target = DisplaySnapshot;
5641
5642 fn deref(&self) -> &Self::Target {
5643 &self.display_snapshot
5644 }
5645}
5646
5647fn compute_scroll_position(
5648 snapshot: &DisplaySnapshot,
5649 mut scroll_position: Vector2F,
5650 scroll_top_anchor: &Anchor,
5651) -> Vector2F {
5652 if *scroll_top_anchor != Anchor::min() {
5653 let scroll_top = scroll_top_anchor.to_display_point(snapshot).row() as f32;
5654 scroll_position.set_y(scroll_top + scroll_position.y());
5655 } else {
5656 scroll_position.set_y(0.);
5657 }
5658 scroll_position
5659}
5660
5661#[derive(Copy, Clone, Debug, PartialEq, Eq)]
5662pub enum Event {
5663 Activate,
5664 BufferEdited,
5665 Edited,
5666 Reparsed,
5667 Blurred,
5668 Dirtied,
5669 Saved,
5670 TitleChanged,
5671 SelectionsChanged { local: bool },
5672 ScrollPositionChanged { local: bool },
5673 Closed,
5674}
5675
5676pub struct EditorFocused(pub ViewHandle<Editor>);
5677pub struct EditorBlurred(pub ViewHandle<Editor>);
5678pub struct EditorReleased(pub WeakViewHandle<Editor>);
5679
5680impl Entity for Editor {
5681 type Event = Event;
5682
5683 fn release(&mut self, cx: &mut MutableAppContext) {
5684 cx.emit_global(EditorReleased(self.handle.clone()));
5685 }
5686}
5687
5688impl View for Editor {
5689 fn render(&mut self, cx: &mut RenderContext<Self>) -> ElementBox {
5690 let style = self.style(cx);
5691 let font_changed = self.display_map.update(cx, |map, cx| {
5692 map.set_font(style.text.font_id, style.text.font_size, cx)
5693 });
5694
5695 // If the
5696 if font_changed {
5697 let handle = self.handle.clone();
5698 cx.defer(move |cx| {
5699 if let Some(editor) = handle.upgrade(cx) {
5700 editor.update(cx, |editor, cx| {
5701 hide_hover(editor, cx);
5702 })
5703 }
5704 });
5705 }
5706
5707 EditorElement::new(self.handle.clone(), style.clone(), self.cursor_shape).boxed()
5708 }
5709
5710 fn ui_name() -> &'static str {
5711 "Editor"
5712 }
5713
5714 fn on_focus(&mut self, cx: &mut ViewContext<Self>) {
5715 let focused_event = EditorFocused(cx.handle());
5716 cx.emit_global(focused_event);
5717 if let Some(rename) = self.pending_rename.as_ref() {
5718 cx.focus(&rename.editor);
5719 } else {
5720 self.focused = true;
5721 self.blink_cursors(self.blink_epoch, cx);
5722 self.buffer.update(cx, |buffer, cx| {
5723 buffer.finalize_last_transaction(cx);
5724 if self.leader_replica_id.is_none() {
5725 buffer.set_active_selections(
5726 &self.selections.disjoint_anchors(),
5727 self.selections.line_mode,
5728 cx,
5729 );
5730 }
5731 });
5732 }
5733 }
5734
5735 fn on_blur(&mut self, cx: &mut ViewContext<Self>) {
5736 let blurred_event = EditorBlurred(cx.handle());
5737 cx.emit_global(blurred_event);
5738 self.focused = false;
5739 self.buffer
5740 .update(cx, |buffer, cx| buffer.remove_active_selections(cx));
5741 self.hide_context_menu(cx);
5742 cx.emit(Event::Blurred);
5743 cx.notify();
5744 }
5745
5746 fn keymap_context(&self, _: &AppContext) -> gpui::keymap::Context {
5747 let mut context = Self::default_keymap_context();
5748 let mode = match self.mode {
5749 EditorMode::SingleLine => "single_line",
5750 EditorMode::AutoHeight { .. } => "auto_height",
5751 EditorMode::Full => "full",
5752 };
5753 context.map.insert("mode".into(), mode.into());
5754 if self.pending_rename.is_some() {
5755 context.set.insert("renaming".into());
5756 }
5757 match self.context_menu.as_ref() {
5758 Some(ContextMenu::Completions(_)) => {
5759 context.set.insert("showing_completions".into());
5760 }
5761 Some(ContextMenu::CodeActions(_)) => {
5762 context.set.insert("showing_code_actions".into());
5763 }
5764 None => {}
5765 }
5766
5767 for layer in self.keymap_context_layers.values() {
5768 context.extend(layer);
5769 }
5770
5771 context
5772 }
5773}
5774
5775fn build_style(
5776 settings: &Settings,
5777 get_field_editor_theme: Option<GetFieldEditorTheme>,
5778 override_text_style: Option<&OverrideTextStyle>,
5779 cx: &AppContext,
5780) -> EditorStyle {
5781 let font_cache = cx.font_cache();
5782
5783 let mut theme = settings.theme.editor.clone();
5784 let mut style = if let Some(get_field_editor_theme) = get_field_editor_theme {
5785 let field_editor_theme = get_field_editor_theme(&settings.theme);
5786 theme.text_color = field_editor_theme.text.color;
5787 theme.selection = field_editor_theme.selection;
5788 theme.background = field_editor_theme
5789 .container
5790 .background_color
5791 .unwrap_or_default();
5792 EditorStyle {
5793 text: field_editor_theme.text,
5794 placeholder_text: field_editor_theme.placeholder_text,
5795 theme,
5796 }
5797 } else {
5798 let font_family_id = settings.buffer_font_family;
5799 let font_family_name = cx.font_cache().family_name(font_family_id).unwrap();
5800 let font_properties = Default::default();
5801 let font_id = font_cache
5802 .select_font(font_family_id, &font_properties)
5803 .unwrap();
5804 let font_size = settings.buffer_font_size;
5805 EditorStyle {
5806 text: TextStyle {
5807 color: settings.theme.editor.text_color,
5808 font_family_name,
5809 font_family_id,
5810 font_id,
5811 font_size,
5812 font_properties,
5813 underline: Default::default(),
5814 },
5815 placeholder_text: None,
5816 theme,
5817 }
5818 };
5819
5820 if let Some(highlight_style) = override_text_style.and_then(|build_style| build_style(&style)) {
5821 if let Some(highlighted) = style
5822 .text
5823 .clone()
5824 .highlight(highlight_style, font_cache)
5825 .log_err()
5826 {
5827 style.text = highlighted;
5828 }
5829 }
5830
5831 style
5832}
5833
5834trait SelectionExt {
5835 fn offset_range(&self, buffer: &MultiBufferSnapshot) -> Range<usize>;
5836 fn point_range(&self, buffer: &MultiBufferSnapshot) -> Range<Point>;
5837 fn display_range(&self, map: &DisplaySnapshot) -> Range<DisplayPoint>;
5838 fn spanned_rows(&self, include_end_if_at_line_start: bool, map: &DisplaySnapshot)
5839 -> Range<u32>;
5840}
5841
5842impl<T: ToPoint + ToOffset> SelectionExt for Selection<T> {
5843 fn point_range(&self, buffer: &MultiBufferSnapshot) -> Range<Point> {
5844 let start = self.start.to_point(buffer);
5845 let end = self.end.to_point(buffer);
5846 if self.reversed {
5847 end..start
5848 } else {
5849 start..end
5850 }
5851 }
5852
5853 fn offset_range(&self, buffer: &MultiBufferSnapshot) -> Range<usize> {
5854 let start = self.start.to_offset(buffer);
5855 let end = self.end.to_offset(buffer);
5856 if self.reversed {
5857 end..start
5858 } else {
5859 start..end
5860 }
5861 }
5862
5863 fn display_range(&self, map: &DisplaySnapshot) -> Range<DisplayPoint> {
5864 let start = self
5865 .start
5866 .to_point(&map.buffer_snapshot)
5867 .to_display_point(map);
5868 let end = self
5869 .end
5870 .to_point(&map.buffer_snapshot)
5871 .to_display_point(map);
5872 if self.reversed {
5873 end..start
5874 } else {
5875 start..end
5876 }
5877 }
5878
5879 fn spanned_rows(
5880 &self,
5881 include_end_if_at_line_start: bool,
5882 map: &DisplaySnapshot,
5883 ) -> Range<u32> {
5884 let start = self.start.to_point(&map.buffer_snapshot);
5885 let mut end = self.end.to_point(&map.buffer_snapshot);
5886 if !include_end_if_at_line_start && start.row != end.row && end.column == 0 {
5887 end.row -= 1;
5888 }
5889
5890 let buffer_start = map.prev_line_boundary(start).0;
5891 let buffer_end = map.next_line_boundary(end).0;
5892 buffer_start.row..buffer_end.row + 1
5893 }
5894}
5895
5896impl<T: InvalidationRegion> InvalidationStack<T> {
5897 fn invalidate<S>(&mut self, selections: &[Selection<S>], buffer: &MultiBufferSnapshot)
5898 where
5899 S: Clone + ToOffset,
5900 {
5901 while let Some(region) = self.last() {
5902 let all_selections_inside_invalidation_ranges =
5903 if selections.len() == region.ranges().len() {
5904 selections
5905 .iter()
5906 .zip(region.ranges().iter().map(|r| r.to_offset(&buffer)))
5907 .all(|(selection, invalidation_range)| {
5908 let head = selection.head().to_offset(&buffer);
5909 invalidation_range.start <= head && invalidation_range.end >= head
5910 })
5911 } else {
5912 false
5913 };
5914
5915 if all_selections_inside_invalidation_ranges {
5916 break;
5917 } else {
5918 self.pop();
5919 }
5920 }
5921 }
5922}
5923
5924impl<T> Default for InvalidationStack<T> {
5925 fn default() -> Self {
5926 Self(Default::default())
5927 }
5928}
5929
5930impl<T> Deref for InvalidationStack<T> {
5931 type Target = Vec<T>;
5932
5933 fn deref(&self) -> &Self::Target {
5934 &self.0
5935 }
5936}
5937
5938impl<T> DerefMut for InvalidationStack<T> {
5939 fn deref_mut(&mut self) -> &mut Self::Target {
5940 &mut self.0
5941 }
5942}
5943
5944impl InvalidationRegion for BracketPairState {
5945 fn ranges(&self) -> &[Range<Anchor>] {
5946 &self.ranges
5947 }
5948}
5949
5950impl InvalidationRegion for SnippetState {
5951 fn ranges(&self) -> &[Range<Anchor>] {
5952 &self.ranges[self.active_index]
5953 }
5954}
5955
5956impl Deref for EditorStyle {
5957 type Target = theme::Editor;
5958
5959 fn deref(&self) -> &Self::Target {
5960 &self.theme
5961 }
5962}
5963
5964pub fn diagnostic_block_renderer(diagnostic: Diagnostic, is_valid: bool) -> RenderBlock {
5965 let mut highlighted_lines = Vec::new();
5966 for line in diagnostic.message.lines() {
5967 highlighted_lines.push(highlight_diagnostic_message(line));
5968 }
5969
5970 Arc::new(move |cx: &mut BlockContext| {
5971 let settings = cx.global::<Settings>();
5972 let theme = &settings.theme.editor;
5973 let style = diagnostic_style(diagnostic.severity, is_valid, theme);
5974 let font_size = (style.text_scale_factor * settings.buffer_font_size).round();
5975 Flex::column()
5976 .with_children(highlighted_lines.iter().map(|(line, highlights)| {
5977 Label::new(
5978 line.clone(),
5979 style.message.clone().with_font_size(font_size),
5980 )
5981 .with_highlights(highlights.clone())
5982 .contained()
5983 .with_margin_left(cx.anchor_x)
5984 .boxed()
5985 }))
5986 .aligned()
5987 .left()
5988 .boxed()
5989 })
5990}
5991
5992pub fn highlight_diagnostic_message(message: &str) -> (String, Vec<usize>) {
5993 let mut message_without_backticks = String::new();
5994 let mut prev_offset = 0;
5995 let mut inside_block = false;
5996 let mut highlights = Vec::new();
5997 for (match_ix, (offset, _)) in message
5998 .match_indices('`')
5999 .chain([(message.len(), "")])
6000 .enumerate()
6001 {
6002 message_without_backticks.push_str(&message[prev_offset..offset]);
6003 if inside_block {
6004 highlights.extend(prev_offset - match_ix..offset - match_ix);
6005 }
6006
6007 inside_block = !inside_block;
6008 prev_offset = offset + 1;
6009 }
6010
6011 (message_without_backticks, highlights)
6012}
6013
6014pub fn diagnostic_style(
6015 severity: DiagnosticSeverity,
6016 valid: bool,
6017 theme: &theme::Editor,
6018) -> DiagnosticStyle {
6019 match (severity, valid) {
6020 (DiagnosticSeverity::ERROR, true) => theme.error_diagnostic.clone(),
6021 (DiagnosticSeverity::ERROR, false) => theme.invalid_error_diagnostic.clone(),
6022 (DiagnosticSeverity::WARNING, true) => theme.warning_diagnostic.clone(),
6023 (DiagnosticSeverity::WARNING, false) => theme.invalid_warning_diagnostic.clone(),
6024 (DiagnosticSeverity::INFORMATION, true) => theme.information_diagnostic.clone(),
6025 (DiagnosticSeverity::INFORMATION, false) => theme.invalid_information_diagnostic.clone(),
6026 (DiagnosticSeverity::HINT, true) => theme.hint_diagnostic.clone(),
6027 (DiagnosticSeverity::HINT, false) => theme.invalid_hint_diagnostic.clone(),
6028 _ => theme.invalid_hint_diagnostic.clone(),
6029 }
6030}
6031
6032pub fn combine_syntax_and_fuzzy_match_highlights(
6033 text: &str,
6034 default_style: HighlightStyle,
6035 syntax_ranges: impl Iterator<Item = (Range<usize>, HighlightStyle)>,
6036 match_indices: &[usize],
6037) -> Vec<(Range<usize>, HighlightStyle)> {
6038 let mut result = Vec::new();
6039 let mut match_indices = match_indices.iter().copied().peekable();
6040
6041 for (range, mut syntax_highlight) in syntax_ranges.chain([(usize::MAX..0, Default::default())])
6042 {
6043 syntax_highlight.weight = None;
6044
6045 // Add highlights for any fuzzy match characters before the next
6046 // syntax highlight range.
6047 while let Some(&match_index) = match_indices.peek() {
6048 if match_index >= range.start {
6049 break;
6050 }
6051 match_indices.next();
6052 let end_index = char_ix_after(match_index, text);
6053 let mut match_style = default_style;
6054 match_style.weight = Some(fonts::Weight::BOLD);
6055 result.push((match_index..end_index, match_style));
6056 }
6057
6058 if range.start == usize::MAX {
6059 break;
6060 }
6061
6062 // Add highlights for any fuzzy match characters within the
6063 // syntax highlight range.
6064 let mut offset = range.start;
6065 while let Some(&match_index) = match_indices.peek() {
6066 if match_index >= range.end {
6067 break;
6068 }
6069
6070 match_indices.next();
6071 if match_index > offset {
6072 result.push((offset..match_index, syntax_highlight));
6073 }
6074
6075 let mut end_index = char_ix_after(match_index, text);
6076 while let Some(&next_match_index) = match_indices.peek() {
6077 if next_match_index == end_index && next_match_index < range.end {
6078 end_index = char_ix_after(next_match_index, text);
6079 match_indices.next();
6080 } else {
6081 break;
6082 }
6083 }
6084
6085 let mut match_style = syntax_highlight;
6086 match_style.weight = Some(fonts::Weight::BOLD);
6087 result.push((match_index..end_index, match_style));
6088 offset = end_index;
6089 }
6090
6091 if offset < range.end {
6092 result.push((offset..range.end, syntax_highlight));
6093 }
6094 }
6095
6096 fn char_ix_after(ix: usize, text: &str) -> usize {
6097 ix + text[ix..].chars().next().unwrap().len_utf8()
6098 }
6099
6100 result
6101}
6102
6103pub fn styled_runs_for_code_label<'a>(
6104 label: &'a CodeLabel,
6105 syntax_theme: &'a theme::SyntaxTheme,
6106) -> impl 'a + Iterator<Item = (Range<usize>, HighlightStyle)> {
6107 let fade_out = HighlightStyle {
6108 fade_out: Some(0.35),
6109 ..Default::default()
6110 };
6111
6112 let mut prev_end = label.filter_range.end;
6113 label
6114 .runs
6115 .iter()
6116 .enumerate()
6117 .flat_map(move |(ix, (range, highlight_id))| {
6118 let style = if let Some(style) = highlight_id.style(syntax_theme) {
6119 style
6120 } else {
6121 return Default::default();
6122 };
6123 let mut muted_style = style.clone();
6124 muted_style.highlight(fade_out);
6125
6126 let mut runs = SmallVec::<[(Range<usize>, HighlightStyle); 3]>::new();
6127 if range.start >= label.filter_range.end {
6128 if range.start > prev_end {
6129 runs.push((prev_end..range.start, fade_out));
6130 }
6131 runs.push((range.clone(), muted_style));
6132 } else if range.end <= label.filter_range.end {
6133 runs.push((range.clone(), style));
6134 } else {
6135 runs.push((range.start..label.filter_range.end, style));
6136 runs.push((label.filter_range.end..range.end, muted_style));
6137 }
6138 prev_end = cmp::max(prev_end, range.end);
6139
6140 if ix + 1 == label.runs.len() && label.text.len() > prev_end {
6141 runs.push((prev_end..label.text.len(), fade_out));
6142 }
6143
6144 runs
6145 })
6146}
6147
6148#[cfg(test)]
6149mod tests {
6150 use crate::{
6151 hover_popover::{
6152 hover, hover_at, HoverAt, HOVER_DELAY_MILLIS, HOVER_GRACE_MILLIS,
6153 HOVER_REQUEST_DELAY_MILLIS,
6154 },
6155 test::{
6156 assert_text_with_selections, build_editor, select_ranges, EditorLspTestContext,
6157 EditorTestContext,
6158 },
6159 };
6160
6161 use super::*;
6162 use gpui::{
6163 geometry::rect::RectF,
6164 platform::{WindowBounds, WindowOptions},
6165 };
6166 use indoc::indoc;
6167 use language::{FakeLspAdapter, LanguageConfig};
6168 use lsp::FakeLanguageServer;
6169 use project::{FakeFs, HoverBlock};
6170 use settings::LanguageOverride;
6171 use smol::stream::StreamExt;
6172 use std::{cell::RefCell, rc::Rc, time::Instant};
6173 use text::Point;
6174 use unindent::Unindent;
6175 use util::{
6176 assert_set_eq,
6177 test::{marked_text_by, marked_text_ranges, marked_text_ranges_by, sample_text},
6178 };
6179 use workspace::{FollowableItem, ItemHandle};
6180
6181 #[gpui::test]
6182 fn test_edit_events(cx: &mut MutableAppContext) {
6183 cx.set_global(Settings::test(cx));
6184 let buffer = cx.add_model(|cx| language::Buffer::new(0, "123456", cx));
6185
6186 let events = Rc::new(RefCell::new(Vec::new()));
6187 let (_, editor1) = cx.add_window(Default::default(), {
6188 let events = events.clone();
6189 |cx| {
6190 cx.subscribe(&cx.handle(), move |_, _, event, _| {
6191 if matches!(event, Event::Edited | Event::BufferEdited | Event::Dirtied) {
6192 events.borrow_mut().push(("editor1", *event));
6193 }
6194 })
6195 .detach();
6196 Editor::for_buffer(buffer.clone(), None, cx)
6197 }
6198 });
6199 let (_, editor2) = cx.add_window(Default::default(), {
6200 let events = events.clone();
6201 |cx| {
6202 cx.subscribe(&cx.handle(), move |_, _, event, _| {
6203 if matches!(event, Event::Edited | Event::BufferEdited | Event::Dirtied) {
6204 events.borrow_mut().push(("editor2", *event));
6205 }
6206 })
6207 .detach();
6208 Editor::for_buffer(buffer.clone(), None, cx)
6209 }
6210 });
6211 assert_eq!(mem::take(&mut *events.borrow_mut()), []);
6212
6213 // Mutating editor 1 will emit an `Edited` event only for that editor.
6214 editor1.update(cx, |editor, cx| editor.insert("X", cx));
6215 assert_eq!(
6216 mem::take(&mut *events.borrow_mut()),
6217 [
6218 ("editor1", Event::Edited),
6219 ("editor1", Event::BufferEdited),
6220 ("editor2", Event::BufferEdited),
6221 ("editor1", Event::Dirtied),
6222 ("editor2", Event::Dirtied)
6223 ]
6224 );
6225
6226 // Mutating editor 2 will emit an `Edited` event only for that editor.
6227 editor2.update(cx, |editor, cx| editor.delete(&Delete, cx));
6228 assert_eq!(
6229 mem::take(&mut *events.borrow_mut()),
6230 [
6231 ("editor2", Event::Edited),
6232 ("editor1", Event::BufferEdited),
6233 ("editor2", Event::BufferEdited),
6234 ]
6235 );
6236
6237 // Undoing on editor 1 will emit an `Edited` event only for that editor.
6238 editor1.update(cx, |editor, cx| editor.undo(&Undo, cx));
6239 assert_eq!(
6240 mem::take(&mut *events.borrow_mut()),
6241 [
6242 ("editor1", Event::Edited),
6243 ("editor1", Event::BufferEdited),
6244 ("editor2", Event::BufferEdited),
6245 ]
6246 );
6247
6248 // Redoing on editor 1 will emit an `Edited` event only for that editor.
6249 editor1.update(cx, |editor, cx| editor.redo(&Redo, cx));
6250 assert_eq!(
6251 mem::take(&mut *events.borrow_mut()),
6252 [
6253 ("editor1", Event::Edited),
6254 ("editor1", Event::BufferEdited),
6255 ("editor2", Event::BufferEdited),
6256 ]
6257 );
6258
6259 // Undoing on editor 2 will emit an `Edited` event only for that editor.
6260 editor2.update(cx, |editor, cx| editor.undo(&Undo, cx));
6261 assert_eq!(
6262 mem::take(&mut *events.borrow_mut()),
6263 [
6264 ("editor2", Event::Edited),
6265 ("editor1", Event::BufferEdited),
6266 ("editor2", Event::BufferEdited),
6267 ]
6268 );
6269
6270 // Redoing on editor 2 will emit an `Edited` event only for that editor.
6271 editor2.update(cx, |editor, cx| editor.redo(&Redo, cx));
6272 assert_eq!(
6273 mem::take(&mut *events.borrow_mut()),
6274 [
6275 ("editor2", Event::Edited),
6276 ("editor1", Event::BufferEdited),
6277 ("editor2", Event::BufferEdited),
6278 ]
6279 );
6280
6281 // No event is emitted when the mutation is a no-op.
6282 editor2.update(cx, |editor, cx| {
6283 editor.change_selections(None, cx, |s| s.select_ranges([0..0]));
6284
6285 editor.backspace(&Backspace, cx);
6286 });
6287 assert_eq!(mem::take(&mut *events.borrow_mut()), []);
6288 }
6289
6290 #[gpui::test]
6291 fn test_undo_redo_with_selection_restoration(cx: &mut MutableAppContext) {
6292 cx.set_global(Settings::test(cx));
6293 let mut now = Instant::now();
6294 let buffer = cx.add_model(|cx| language::Buffer::new(0, "123456", cx));
6295 let group_interval = buffer.read(cx).transaction_group_interval();
6296 let buffer = cx.add_model(|cx| MultiBuffer::singleton(buffer, cx));
6297 let (_, editor) = cx.add_window(Default::default(), |cx| build_editor(buffer.clone(), cx));
6298
6299 editor.update(cx, |editor, cx| {
6300 editor.start_transaction_at(now, cx);
6301 editor.change_selections(None, cx, |s| s.select_ranges([2..4]));
6302
6303 editor.insert("cd", cx);
6304 editor.end_transaction_at(now, cx);
6305 assert_eq!(editor.text(cx), "12cd56");
6306 assert_eq!(editor.selections.ranges(cx), vec![4..4]);
6307
6308 editor.start_transaction_at(now, cx);
6309 editor.change_selections(None, cx, |s| s.select_ranges([4..5]));
6310 editor.insert("e", cx);
6311 editor.end_transaction_at(now, cx);
6312 assert_eq!(editor.text(cx), "12cde6");
6313 assert_eq!(editor.selections.ranges(cx), vec![5..5]);
6314
6315 now += group_interval + Duration::from_millis(1);
6316 editor.change_selections(None, cx, |s| s.select_ranges([2..2]));
6317
6318 // Simulate an edit in another editor
6319 buffer.update(cx, |buffer, cx| {
6320 buffer.start_transaction_at(now, cx);
6321 buffer.edit([(0..1, "a")], cx);
6322 buffer.edit([(1..1, "b")], cx);
6323 buffer.end_transaction_at(now, cx);
6324 });
6325
6326 assert_eq!(editor.text(cx), "ab2cde6");
6327 assert_eq!(editor.selections.ranges(cx), vec![3..3]);
6328
6329 // Last transaction happened past the group interval in a different editor.
6330 // Undo it individually and don't restore selections.
6331 editor.undo(&Undo, cx);
6332 assert_eq!(editor.text(cx), "12cde6");
6333 assert_eq!(editor.selections.ranges(cx), vec![2..2]);
6334
6335 // First two transactions happened within the group interval in this editor.
6336 // Undo them together and restore selections.
6337 editor.undo(&Undo, cx);
6338 editor.undo(&Undo, cx); // Undo stack is empty here, so this is a no-op.
6339 assert_eq!(editor.text(cx), "123456");
6340 assert_eq!(editor.selections.ranges(cx), vec![0..0]);
6341
6342 // Redo the first two transactions together.
6343 editor.redo(&Redo, cx);
6344 assert_eq!(editor.text(cx), "12cde6");
6345 assert_eq!(editor.selections.ranges(cx), vec![5..5]);
6346
6347 // Redo the last transaction on its own.
6348 editor.redo(&Redo, cx);
6349 assert_eq!(editor.text(cx), "ab2cde6");
6350 assert_eq!(editor.selections.ranges(cx), vec![6..6]);
6351
6352 // Test empty transactions.
6353 editor.start_transaction_at(now, cx);
6354 editor.end_transaction_at(now, cx);
6355 editor.undo(&Undo, cx);
6356 assert_eq!(editor.text(cx), "12cde6");
6357 });
6358 }
6359
6360 #[gpui::test]
6361 fn test_selection_with_mouse(cx: &mut gpui::MutableAppContext) {
6362 cx.set_global(Settings::test(cx));
6363
6364 let buffer = MultiBuffer::build_simple("aaaaaa\nbbbbbb\ncccccc\nddddddd\n", cx);
6365 let (_, editor) = cx.add_window(Default::default(), |cx| build_editor(buffer, cx));
6366 editor.update(cx, |view, cx| {
6367 view.begin_selection(DisplayPoint::new(2, 2), false, 1, cx);
6368 });
6369 assert_eq!(
6370 editor.update(cx, |view, cx| view.selections.display_ranges(cx)),
6371 [DisplayPoint::new(2, 2)..DisplayPoint::new(2, 2)]
6372 );
6373
6374 editor.update(cx, |view, cx| {
6375 view.update_selection(DisplayPoint::new(3, 3), 0, Vector2F::zero(), cx);
6376 });
6377
6378 assert_eq!(
6379 editor.update(cx, |view, cx| view.selections.display_ranges(cx)),
6380 [DisplayPoint::new(2, 2)..DisplayPoint::new(3, 3)]
6381 );
6382
6383 editor.update(cx, |view, cx| {
6384 view.update_selection(DisplayPoint::new(1, 1), 0, Vector2F::zero(), cx);
6385 });
6386
6387 assert_eq!(
6388 editor.update(cx, |view, cx| view.selections.display_ranges(cx)),
6389 [DisplayPoint::new(2, 2)..DisplayPoint::new(1, 1)]
6390 );
6391
6392 editor.update(cx, |view, cx| {
6393 view.end_selection(cx);
6394 view.update_selection(DisplayPoint::new(3, 3), 0, Vector2F::zero(), cx);
6395 });
6396
6397 assert_eq!(
6398 editor.update(cx, |view, cx| view.selections.display_ranges(cx)),
6399 [DisplayPoint::new(2, 2)..DisplayPoint::new(1, 1)]
6400 );
6401
6402 editor.update(cx, |view, cx| {
6403 view.begin_selection(DisplayPoint::new(3, 3), true, 1, cx);
6404 view.update_selection(DisplayPoint::new(0, 0), 0, Vector2F::zero(), cx);
6405 });
6406
6407 assert_eq!(
6408 editor.update(cx, |view, cx| view.selections.display_ranges(cx)),
6409 [
6410 DisplayPoint::new(2, 2)..DisplayPoint::new(1, 1),
6411 DisplayPoint::new(3, 3)..DisplayPoint::new(0, 0)
6412 ]
6413 );
6414
6415 editor.update(cx, |view, cx| {
6416 view.end_selection(cx);
6417 });
6418
6419 assert_eq!(
6420 editor.update(cx, |view, cx| view.selections.display_ranges(cx)),
6421 [DisplayPoint::new(3, 3)..DisplayPoint::new(0, 0)]
6422 );
6423 }
6424
6425 #[gpui::test]
6426 fn test_canceling_pending_selection(cx: &mut gpui::MutableAppContext) {
6427 cx.set_global(Settings::test(cx));
6428 let buffer = MultiBuffer::build_simple("aaaaaa\nbbbbbb\ncccccc\ndddddd\n", cx);
6429 let (_, view) = cx.add_window(Default::default(), |cx| build_editor(buffer, cx));
6430
6431 view.update(cx, |view, cx| {
6432 view.begin_selection(DisplayPoint::new(2, 2), false, 1, cx);
6433 assert_eq!(
6434 view.selections.display_ranges(cx),
6435 [DisplayPoint::new(2, 2)..DisplayPoint::new(2, 2)]
6436 );
6437 });
6438
6439 view.update(cx, |view, cx| {
6440 view.update_selection(DisplayPoint::new(3, 3), 0, Vector2F::zero(), cx);
6441 assert_eq!(
6442 view.selections.display_ranges(cx),
6443 [DisplayPoint::new(2, 2)..DisplayPoint::new(3, 3)]
6444 );
6445 });
6446
6447 view.update(cx, |view, cx| {
6448 view.cancel(&Cancel, cx);
6449 view.update_selection(DisplayPoint::new(1, 1), 0, Vector2F::zero(), cx);
6450 assert_eq!(
6451 view.selections.display_ranges(cx),
6452 [DisplayPoint::new(2, 2)..DisplayPoint::new(3, 3)]
6453 );
6454 });
6455 }
6456
6457 #[gpui::test]
6458 fn test_clone_with_selections(cx: &mut gpui::MutableAppContext) {
6459 let (text, selection_ranges) = marked_text_ranges(indoc! {"
6460 The qu[ick brown
6461 fox jum]ps over
6462 the lazy dog
6463 "});
6464 cx.set_global(Settings::test(cx));
6465 let buffer = MultiBuffer::build_simple(&text, cx);
6466
6467 let (_, view) = cx.add_window(Default::default(), |cx| build_editor(buffer, cx));
6468
6469 let cloned_editor = view.update(cx, |view, cx| {
6470 view.change_selections(None, cx, |s| s.select_ranges(selection_ranges.clone()));
6471 view.clone(cx)
6472 });
6473
6474 assert_set_eq!(cloned_editor.selections.ranges(cx), selection_ranges);
6475 }
6476
6477 #[gpui::test]
6478 fn test_navigation_history(cx: &mut gpui::MutableAppContext) {
6479 cx.set_global(Settings::test(cx));
6480 use workspace::Item;
6481 let nav_history = Rc::new(RefCell::new(workspace::NavHistory::default()));
6482 let buffer = MultiBuffer::build_simple(&sample_text(300, 5, 'a'), cx);
6483
6484 cx.add_window(Default::default(), |cx| {
6485 let mut editor = build_editor(buffer.clone(), cx);
6486 editor.nav_history = Some(ItemNavHistory::new(nav_history.clone(), &cx.handle()));
6487
6488 // Move the cursor a small distance.
6489 // Nothing is added to the navigation history.
6490 editor.change_selections(None, cx, |s| {
6491 s.select_display_ranges([DisplayPoint::new(1, 0)..DisplayPoint::new(1, 0)])
6492 });
6493 editor.change_selections(None, cx, |s| {
6494 s.select_display_ranges([DisplayPoint::new(3, 0)..DisplayPoint::new(3, 0)])
6495 });
6496 assert!(nav_history.borrow_mut().pop_backward().is_none());
6497
6498 // Move the cursor a large distance.
6499 // The history can jump back to the previous position.
6500 editor.change_selections(None, cx, |s| {
6501 s.select_display_ranges([DisplayPoint::new(13, 0)..DisplayPoint::new(13, 3)])
6502 });
6503 let nav_entry = nav_history.borrow_mut().pop_backward().unwrap();
6504 editor.navigate(nav_entry.data.unwrap(), cx);
6505 assert_eq!(nav_entry.item.id(), cx.view_id());
6506 assert_eq!(
6507 editor.selections.display_ranges(cx),
6508 &[DisplayPoint::new(3, 0)..DisplayPoint::new(3, 0)]
6509 );
6510 assert!(nav_history.borrow_mut().pop_backward().is_none());
6511
6512 // Move the cursor a small distance via the mouse.
6513 // Nothing is added to the navigation history.
6514 editor.begin_selection(DisplayPoint::new(5, 0), false, 1, cx);
6515 editor.end_selection(cx);
6516 assert_eq!(
6517 editor.selections.display_ranges(cx),
6518 &[DisplayPoint::new(5, 0)..DisplayPoint::new(5, 0)]
6519 );
6520 assert!(nav_history.borrow_mut().pop_backward().is_none());
6521
6522 // Move the cursor a large distance via the mouse.
6523 // The history can jump back to the previous position.
6524 editor.begin_selection(DisplayPoint::new(15, 0), false, 1, cx);
6525 editor.end_selection(cx);
6526 assert_eq!(
6527 editor.selections.display_ranges(cx),
6528 &[DisplayPoint::new(15, 0)..DisplayPoint::new(15, 0)]
6529 );
6530 let nav_entry = nav_history.borrow_mut().pop_backward().unwrap();
6531 editor.navigate(nav_entry.data.unwrap(), cx);
6532 assert_eq!(nav_entry.item.id(), cx.view_id());
6533 assert_eq!(
6534 editor.selections.display_ranges(cx),
6535 &[DisplayPoint::new(5, 0)..DisplayPoint::new(5, 0)]
6536 );
6537 assert!(nav_history.borrow_mut().pop_backward().is_none());
6538
6539 // Set scroll position to check later
6540 editor.set_scroll_position(Vector2F::new(5.5, 5.5), cx);
6541 let original_scroll_position = editor.scroll_position;
6542 let original_scroll_top_anchor = editor.scroll_top_anchor.clone();
6543
6544 // Jump to the end of the document and adjust scroll
6545 editor.move_to_end(&MoveToEnd, cx);
6546 editor.set_scroll_position(Vector2F::new(-2.5, -0.5), cx);
6547 assert_ne!(editor.scroll_position, original_scroll_position);
6548 assert_ne!(editor.scroll_top_anchor, original_scroll_top_anchor);
6549
6550 let nav_entry = nav_history.borrow_mut().pop_backward().unwrap();
6551 editor.navigate(nav_entry.data.unwrap(), cx);
6552 assert_eq!(editor.scroll_position, original_scroll_position);
6553 assert_eq!(editor.scroll_top_anchor, original_scroll_top_anchor);
6554
6555 // Ensure we don't panic when navigation data contains invalid anchors *and* points.
6556 let mut invalid_anchor = editor.scroll_top_anchor.clone();
6557 invalid_anchor.text_anchor.buffer_id = Some(999);
6558 let invalid_point = Point::new(9999, 0);
6559 editor.navigate(
6560 Box::new(NavigationData {
6561 cursor_anchor: invalid_anchor.clone(),
6562 cursor_position: invalid_point,
6563 scroll_top_anchor: invalid_anchor.clone(),
6564 scroll_top_row: invalid_point.row,
6565 scroll_position: Default::default(),
6566 }),
6567 cx,
6568 );
6569 assert_eq!(
6570 editor.selections.display_ranges(cx),
6571 &[editor.max_point(cx)..editor.max_point(cx)]
6572 );
6573 assert_eq!(
6574 editor.scroll_position(cx),
6575 vec2f(0., editor.max_point(cx).row() as f32)
6576 );
6577
6578 editor
6579 });
6580 }
6581
6582 #[gpui::test]
6583 fn test_cancel(cx: &mut gpui::MutableAppContext) {
6584 cx.set_global(Settings::test(cx));
6585 let buffer = MultiBuffer::build_simple("aaaaaa\nbbbbbb\ncccccc\ndddddd\n", cx);
6586 let (_, view) = cx.add_window(Default::default(), |cx| build_editor(buffer, cx));
6587
6588 view.update(cx, |view, cx| {
6589 view.begin_selection(DisplayPoint::new(3, 4), false, 1, cx);
6590 view.update_selection(DisplayPoint::new(1, 1), 0, Vector2F::zero(), cx);
6591 view.end_selection(cx);
6592
6593 view.begin_selection(DisplayPoint::new(0, 1), true, 1, cx);
6594 view.update_selection(DisplayPoint::new(0, 3), 0, Vector2F::zero(), cx);
6595 view.end_selection(cx);
6596 assert_eq!(
6597 view.selections.display_ranges(cx),
6598 [
6599 DisplayPoint::new(0, 1)..DisplayPoint::new(0, 3),
6600 DisplayPoint::new(3, 4)..DisplayPoint::new(1, 1),
6601 ]
6602 );
6603 });
6604
6605 view.update(cx, |view, cx| {
6606 view.cancel(&Cancel, cx);
6607 assert_eq!(
6608 view.selections.display_ranges(cx),
6609 [DisplayPoint::new(3, 4)..DisplayPoint::new(1, 1)]
6610 );
6611 });
6612
6613 view.update(cx, |view, cx| {
6614 view.cancel(&Cancel, cx);
6615 assert_eq!(
6616 view.selections.display_ranges(cx),
6617 [DisplayPoint::new(1, 1)..DisplayPoint::new(1, 1)]
6618 );
6619 });
6620 }
6621
6622 #[gpui::test]
6623 fn test_fold(cx: &mut gpui::MutableAppContext) {
6624 cx.set_global(Settings::test(cx));
6625 let buffer = MultiBuffer::build_simple(
6626 &"
6627 impl Foo {
6628 // Hello!
6629
6630 fn a() {
6631 1
6632 }
6633
6634 fn b() {
6635 2
6636 }
6637
6638 fn c() {
6639 3
6640 }
6641 }
6642 "
6643 .unindent(),
6644 cx,
6645 );
6646 let (_, view) = cx.add_window(Default::default(), |cx| build_editor(buffer.clone(), cx));
6647
6648 view.update(cx, |view, cx| {
6649 view.change_selections(None, cx, |s| {
6650 s.select_display_ranges([DisplayPoint::new(8, 0)..DisplayPoint::new(12, 0)]);
6651 });
6652 view.fold(&Fold, cx);
6653 assert_eq!(
6654 view.display_text(cx),
6655 "
6656 impl Foo {
6657 // Hello!
6658
6659 fn a() {
6660 1
6661 }
6662
6663 fn b() {…
6664 }
6665
6666 fn c() {…
6667 }
6668 }
6669 "
6670 .unindent(),
6671 );
6672
6673 view.fold(&Fold, cx);
6674 assert_eq!(
6675 view.display_text(cx),
6676 "
6677 impl Foo {…
6678 }
6679 "
6680 .unindent(),
6681 );
6682
6683 view.unfold_lines(&UnfoldLines, cx);
6684 assert_eq!(
6685 view.display_text(cx),
6686 "
6687 impl Foo {
6688 // Hello!
6689
6690 fn a() {
6691 1
6692 }
6693
6694 fn b() {…
6695 }
6696
6697 fn c() {…
6698 }
6699 }
6700 "
6701 .unindent(),
6702 );
6703
6704 view.unfold_lines(&UnfoldLines, cx);
6705 assert_eq!(view.display_text(cx), buffer.read(cx).read(cx).text());
6706 });
6707 }
6708
6709 #[gpui::test]
6710 fn test_move_cursor(cx: &mut gpui::MutableAppContext) {
6711 cx.set_global(Settings::test(cx));
6712 let buffer = MultiBuffer::build_simple(&sample_text(6, 6, 'a'), cx);
6713 let (_, view) = cx.add_window(Default::default(), |cx| build_editor(buffer.clone(), cx));
6714
6715 buffer.update(cx, |buffer, cx| {
6716 buffer.edit(
6717 vec![
6718 (Point::new(1, 0)..Point::new(1, 0), "\t"),
6719 (Point::new(1, 1)..Point::new(1, 1), "\t"),
6720 ],
6721 cx,
6722 );
6723 });
6724
6725 view.update(cx, |view, cx| {
6726 assert_eq!(
6727 view.selections.display_ranges(cx),
6728 &[DisplayPoint::new(0, 0)..DisplayPoint::new(0, 0)]
6729 );
6730
6731 view.move_down(&MoveDown, cx);
6732 assert_eq!(
6733 view.selections.display_ranges(cx),
6734 &[DisplayPoint::new(1, 0)..DisplayPoint::new(1, 0)]
6735 );
6736
6737 view.move_right(&MoveRight, cx);
6738 assert_eq!(
6739 view.selections.display_ranges(cx),
6740 &[DisplayPoint::new(1, 4)..DisplayPoint::new(1, 4)]
6741 );
6742
6743 view.move_left(&MoveLeft, cx);
6744 assert_eq!(
6745 view.selections.display_ranges(cx),
6746 &[DisplayPoint::new(1, 0)..DisplayPoint::new(1, 0)]
6747 );
6748
6749 view.move_up(&MoveUp, cx);
6750 assert_eq!(
6751 view.selections.display_ranges(cx),
6752 &[DisplayPoint::new(0, 0)..DisplayPoint::new(0, 0)]
6753 );
6754
6755 view.move_to_end(&MoveToEnd, cx);
6756 assert_eq!(
6757 view.selections.display_ranges(cx),
6758 &[DisplayPoint::new(5, 6)..DisplayPoint::new(5, 6)]
6759 );
6760
6761 view.move_to_beginning(&MoveToBeginning, cx);
6762 assert_eq!(
6763 view.selections.display_ranges(cx),
6764 &[DisplayPoint::new(0, 0)..DisplayPoint::new(0, 0)]
6765 );
6766
6767 view.change_selections(None, cx, |s| {
6768 s.select_display_ranges([DisplayPoint::new(0, 1)..DisplayPoint::new(0, 2)]);
6769 });
6770 view.select_to_beginning(&SelectToBeginning, cx);
6771 assert_eq!(
6772 view.selections.display_ranges(cx),
6773 &[DisplayPoint::new(0, 1)..DisplayPoint::new(0, 0)]
6774 );
6775
6776 view.select_to_end(&SelectToEnd, cx);
6777 assert_eq!(
6778 view.selections.display_ranges(cx),
6779 &[DisplayPoint::new(0, 1)..DisplayPoint::new(5, 6)]
6780 );
6781 });
6782 }
6783
6784 #[gpui::test]
6785 fn test_move_cursor_multibyte(cx: &mut gpui::MutableAppContext) {
6786 cx.set_global(Settings::test(cx));
6787 let buffer = MultiBuffer::build_simple("ⓐⓑⓒⓓⓔ\nabcde\nαβγδε\n", cx);
6788 let (_, view) = cx.add_window(Default::default(), |cx| build_editor(buffer.clone(), cx));
6789
6790 assert_eq!('ⓐ'.len_utf8(), 3);
6791 assert_eq!('α'.len_utf8(), 2);
6792
6793 view.update(cx, |view, cx| {
6794 view.fold_ranges(
6795 vec![
6796 Point::new(0, 6)..Point::new(0, 12),
6797 Point::new(1, 2)..Point::new(1, 4),
6798 Point::new(2, 4)..Point::new(2, 8),
6799 ],
6800 cx,
6801 );
6802 assert_eq!(view.display_text(cx), "ⓐⓑ…ⓔ\nab…e\nαβ…ε\n");
6803
6804 view.move_right(&MoveRight, cx);
6805 assert_eq!(
6806 view.selections.display_ranges(cx),
6807 &[empty_range(0, "ⓐ".len())]
6808 );
6809 view.move_right(&MoveRight, cx);
6810 assert_eq!(
6811 view.selections.display_ranges(cx),
6812 &[empty_range(0, "ⓐⓑ".len())]
6813 );
6814 view.move_right(&MoveRight, cx);
6815 assert_eq!(
6816 view.selections.display_ranges(cx),
6817 &[empty_range(0, "ⓐⓑ…".len())]
6818 );
6819
6820 view.move_down(&MoveDown, cx);
6821 assert_eq!(
6822 view.selections.display_ranges(cx),
6823 &[empty_range(1, "ab…".len())]
6824 );
6825 view.move_left(&MoveLeft, cx);
6826 assert_eq!(
6827 view.selections.display_ranges(cx),
6828 &[empty_range(1, "ab".len())]
6829 );
6830 view.move_left(&MoveLeft, cx);
6831 assert_eq!(
6832 view.selections.display_ranges(cx),
6833 &[empty_range(1, "a".len())]
6834 );
6835
6836 view.move_down(&MoveDown, cx);
6837 assert_eq!(
6838 view.selections.display_ranges(cx),
6839 &[empty_range(2, "α".len())]
6840 );
6841 view.move_right(&MoveRight, cx);
6842 assert_eq!(
6843 view.selections.display_ranges(cx),
6844 &[empty_range(2, "αβ".len())]
6845 );
6846 view.move_right(&MoveRight, cx);
6847 assert_eq!(
6848 view.selections.display_ranges(cx),
6849 &[empty_range(2, "αβ…".len())]
6850 );
6851 view.move_right(&MoveRight, cx);
6852 assert_eq!(
6853 view.selections.display_ranges(cx),
6854 &[empty_range(2, "αβ…ε".len())]
6855 );
6856
6857 view.move_up(&MoveUp, cx);
6858 assert_eq!(
6859 view.selections.display_ranges(cx),
6860 &[empty_range(1, "ab…e".len())]
6861 );
6862 view.move_up(&MoveUp, cx);
6863 assert_eq!(
6864 view.selections.display_ranges(cx),
6865 &[empty_range(0, "ⓐⓑ…ⓔ".len())]
6866 );
6867 view.move_left(&MoveLeft, cx);
6868 assert_eq!(
6869 view.selections.display_ranges(cx),
6870 &[empty_range(0, "ⓐⓑ…".len())]
6871 );
6872 view.move_left(&MoveLeft, cx);
6873 assert_eq!(
6874 view.selections.display_ranges(cx),
6875 &[empty_range(0, "ⓐⓑ".len())]
6876 );
6877 view.move_left(&MoveLeft, cx);
6878 assert_eq!(
6879 view.selections.display_ranges(cx),
6880 &[empty_range(0, "ⓐ".len())]
6881 );
6882 });
6883 }
6884
6885 #[gpui::test]
6886 fn test_move_cursor_different_line_lengths(cx: &mut gpui::MutableAppContext) {
6887 cx.set_global(Settings::test(cx));
6888 let buffer = MultiBuffer::build_simple("ⓐⓑⓒⓓⓔ\nabcd\nαβγ\nabcd\nⓐⓑⓒⓓⓔ\n", cx);
6889 let (_, view) = cx.add_window(Default::default(), |cx| build_editor(buffer.clone(), cx));
6890 view.update(cx, |view, cx| {
6891 view.change_selections(None, cx, |s| {
6892 s.select_display_ranges([empty_range(0, "ⓐⓑⓒⓓⓔ".len())]);
6893 });
6894 view.move_down(&MoveDown, cx);
6895 assert_eq!(
6896 view.selections.display_ranges(cx),
6897 &[empty_range(1, "abcd".len())]
6898 );
6899
6900 view.move_down(&MoveDown, cx);
6901 assert_eq!(
6902 view.selections.display_ranges(cx),
6903 &[empty_range(2, "αβγ".len())]
6904 );
6905
6906 view.move_down(&MoveDown, cx);
6907 assert_eq!(
6908 view.selections.display_ranges(cx),
6909 &[empty_range(3, "abcd".len())]
6910 );
6911
6912 view.move_down(&MoveDown, cx);
6913 assert_eq!(
6914 view.selections.display_ranges(cx),
6915 &[empty_range(4, "ⓐⓑⓒⓓⓔ".len())]
6916 );
6917
6918 view.move_up(&MoveUp, cx);
6919 assert_eq!(
6920 view.selections.display_ranges(cx),
6921 &[empty_range(3, "abcd".len())]
6922 );
6923
6924 view.move_up(&MoveUp, cx);
6925 assert_eq!(
6926 view.selections.display_ranges(cx),
6927 &[empty_range(2, "αβγ".len())]
6928 );
6929 });
6930 }
6931
6932 #[gpui::test]
6933 fn test_beginning_end_of_line(cx: &mut gpui::MutableAppContext) {
6934 cx.set_global(Settings::test(cx));
6935 let buffer = MultiBuffer::build_simple("abc\n def", cx);
6936 let (_, view) = cx.add_window(Default::default(), |cx| build_editor(buffer, cx));
6937 view.update(cx, |view, cx| {
6938 view.change_selections(None, cx, |s| {
6939 s.select_display_ranges([
6940 DisplayPoint::new(0, 1)..DisplayPoint::new(0, 1),
6941 DisplayPoint::new(1, 4)..DisplayPoint::new(1, 4),
6942 ]);
6943 });
6944 });
6945
6946 view.update(cx, |view, cx| {
6947 view.move_to_beginning_of_line(&MoveToBeginningOfLine, cx);
6948 assert_eq!(
6949 view.selections.display_ranges(cx),
6950 &[
6951 DisplayPoint::new(0, 0)..DisplayPoint::new(0, 0),
6952 DisplayPoint::new(1, 2)..DisplayPoint::new(1, 2),
6953 ]
6954 );
6955 });
6956
6957 view.update(cx, |view, cx| {
6958 view.move_to_beginning_of_line(&MoveToBeginningOfLine, cx);
6959 assert_eq!(
6960 view.selections.display_ranges(cx),
6961 &[
6962 DisplayPoint::new(0, 0)..DisplayPoint::new(0, 0),
6963 DisplayPoint::new(1, 0)..DisplayPoint::new(1, 0),
6964 ]
6965 );
6966 });
6967
6968 view.update(cx, |view, cx| {
6969 view.move_to_beginning_of_line(&MoveToBeginningOfLine, cx);
6970 assert_eq!(
6971 view.selections.display_ranges(cx),
6972 &[
6973 DisplayPoint::new(0, 0)..DisplayPoint::new(0, 0),
6974 DisplayPoint::new(1, 2)..DisplayPoint::new(1, 2),
6975 ]
6976 );
6977 });
6978
6979 view.update(cx, |view, cx| {
6980 view.move_to_end_of_line(&MoveToEndOfLine, cx);
6981 assert_eq!(
6982 view.selections.display_ranges(cx),
6983 &[
6984 DisplayPoint::new(0, 3)..DisplayPoint::new(0, 3),
6985 DisplayPoint::new(1, 5)..DisplayPoint::new(1, 5),
6986 ]
6987 );
6988 });
6989
6990 // Moving to the end of line again is a no-op.
6991 view.update(cx, |view, cx| {
6992 view.move_to_end_of_line(&MoveToEndOfLine, cx);
6993 assert_eq!(
6994 view.selections.display_ranges(cx),
6995 &[
6996 DisplayPoint::new(0, 3)..DisplayPoint::new(0, 3),
6997 DisplayPoint::new(1, 5)..DisplayPoint::new(1, 5),
6998 ]
6999 );
7000 });
7001
7002 view.update(cx, |view, cx| {
7003 view.move_left(&MoveLeft, cx);
7004 view.select_to_beginning_of_line(
7005 &SelectToBeginningOfLine {
7006 stop_at_soft_wraps: true,
7007 },
7008 cx,
7009 );
7010 assert_eq!(
7011 view.selections.display_ranges(cx),
7012 &[
7013 DisplayPoint::new(0, 2)..DisplayPoint::new(0, 0),
7014 DisplayPoint::new(1, 4)..DisplayPoint::new(1, 2),
7015 ]
7016 );
7017 });
7018
7019 view.update(cx, |view, cx| {
7020 view.select_to_beginning_of_line(
7021 &SelectToBeginningOfLine {
7022 stop_at_soft_wraps: true,
7023 },
7024 cx,
7025 );
7026 assert_eq!(
7027 view.selections.display_ranges(cx),
7028 &[
7029 DisplayPoint::new(0, 2)..DisplayPoint::new(0, 0),
7030 DisplayPoint::new(1, 4)..DisplayPoint::new(1, 0),
7031 ]
7032 );
7033 });
7034
7035 view.update(cx, |view, cx| {
7036 view.select_to_beginning_of_line(
7037 &SelectToBeginningOfLine {
7038 stop_at_soft_wraps: true,
7039 },
7040 cx,
7041 );
7042 assert_eq!(
7043 view.selections.display_ranges(cx),
7044 &[
7045 DisplayPoint::new(0, 2)..DisplayPoint::new(0, 0),
7046 DisplayPoint::new(1, 4)..DisplayPoint::new(1, 2),
7047 ]
7048 );
7049 });
7050
7051 view.update(cx, |view, cx| {
7052 view.select_to_end_of_line(
7053 &SelectToEndOfLine {
7054 stop_at_soft_wraps: true,
7055 },
7056 cx,
7057 );
7058 assert_eq!(
7059 view.selections.display_ranges(cx),
7060 &[
7061 DisplayPoint::new(0, 2)..DisplayPoint::new(0, 3),
7062 DisplayPoint::new(1, 4)..DisplayPoint::new(1, 5),
7063 ]
7064 );
7065 });
7066
7067 view.update(cx, |view, cx| {
7068 view.delete_to_end_of_line(&DeleteToEndOfLine, cx);
7069 assert_eq!(view.display_text(cx), "ab\n de");
7070 assert_eq!(
7071 view.selections.display_ranges(cx),
7072 &[
7073 DisplayPoint::new(0, 2)..DisplayPoint::new(0, 2),
7074 DisplayPoint::new(1, 4)..DisplayPoint::new(1, 4),
7075 ]
7076 );
7077 });
7078
7079 view.update(cx, |view, cx| {
7080 view.delete_to_beginning_of_line(&DeleteToBeginningOfLine, cx);
7081 assert_eq!(view.display_text(cx), "\n");
7082 assert_eq!(
7083 view.selections.display_ranges(cx),
7084 &[
7085 DisplayPoint::new(0, 0)..DisplayPoint::new(0, 0),
7086 DisplayPoint::new(1, 0)..DisplayPoint::new(1, 0),
7087 ]
7088 );
7089 });
7090 }
7091
7092 #[gpui::test]
7093 fn test_prev_next_word_boundary(cx: &mut gpui::MutableAppContext) {
7094 cx.set_global(Settings::test(cx));
7095 let buffer = MultiBuffer::build_simple("use std::str::{foo, bar}\n\n {baz.qux()}", cx);
7096 let (_, view) = cx.add_window(Default::default(), |cx| build_editor(buffer, cx));
7097 view.update(cx, |view, cx| {
7098 view.change_selections(None, cx, |s| {
7099 s.select_display_ranges([
7100 DisplayPoint::new(0, 11)..DisplayPoint::new(0, 11),
7101 DisplayPoint::new(2, 4)..DisplayPoint::new(2, 4),
7102 ])
7103 });
7104
7105 view.move_to_previous_word_start(&MoveToPreviousWordStart, cx);
7106 assert_selection_ranges(
7107 "use std::<>str::{foo, bar}\n\n {[]baz.qux()}",
7108 vec![('<', '>'), ('[', ']')],
7109 view,
7110 cx,
7111 );
7112
7113 view.move_to_previous_word_start(&MoveToPreviousWordStart, cx);
7114 assert_selection_ranges(
7115 "use std<>::str::{foo, bar}\n\n []{baz.qux()}",
7116 vec![('<', '>'), ('[', ']')],
7117 view,
7118 cx,
7119 );
7120
7121 view.move_to_previous_word_start(&MoveToPreviousWordStart, cx);
7122 assert_selection_ranges(
7123 "use <>std::str::{foo, bar}\n\n[] {baz.qux()}",
7124 vec![('<', '>'), ('[', ']')],
7125 view,
7126 cx,
7127 );
7128
7129 view.move_to_previous_word_start(&MoveToPreviousWordStart, cx);
7130 assert_selection_ranges(
7131 "<>use std::str::{foo, bar}\n[]\n {baz.qux()}",
7132 vec![('<', '>'), ('[', ']')],
7133 view,
7134 cx,
7135 );
7136
7137 view.move_to_previous_word_start(&MoveToPreviousWordStart, cx);
7138 assert_selection_ranges(
7139 "<>use std::str::{foo, bar[]}\n\n {baz.qux()}",
7140 vec![('<', '>'), ('[', ']')],
7141 view,
7142 cx,
7143 );
7144
7145 view.move_to_next_word_end(&MoveToNextWordEnd, cx);
7146 assert_selection_ranges(
7147 "use<> std::str::{foo, bar}[]\n\n {baz.qux()}",
7148 vec![('<', '>'), ('[', ']')],
7149 view,
7150 cx,
7151 );
7152
7153 view.move_to_next_word_end(&MoveToNextWordEnd, cx);
7154 assert_selection_ranges(
7155 "use std<>::str::{foo, bar}\n[]\n {baz.qux()}",
7156 vec![('<', '>'), ('[', ']')],
7157 view,
7158 cx,
7159 );
7160
7161 view.move_to_next_word_end(&MoveToNextWordEnd, cx);
7162 assert_selection_ranges(
7163 "use std::<>str::{foo, bar}\n\n {[]baz.qux()}",
7164 vec![('<', '>'), ('[', ']')],
7165 view,
7166 cx,
7167 );
7168
7169 view.move_right(&MoveRight, cx);
7170 view.select_to_previous_word_start(&SelectToPreviousWordStart, cx);
7171 assert_selection_ranges(
7172 "use std::>s<tr::{foo, bar}\n\n {]b[az.qux()}",
7173 vec![('<', '>'), ('[', ']')],
7174 view,
7175 cx,
7176 );
7177
7178 view.select_to_previous_word_start(&SelectToPreviousWordStart, cx);
7179 assert_selection_ranges(
7180 "use std>::s<tr::{foo, bar}\n\n ]{b[az.qux()}",
7181 vec![('<', '>'), ('[', ']')],
7182 view,
7183 cx,
7184 );
7185
7186 view.select_to_next_word_end(&SelectToNextWordEnd, cx);
7187 assert_selection_ranges(
7188 "use std::>s<tr::{foo, bar}\n\n {]b[az.qux()}",
7189 vec![('<', '>'), ('[', ']')],
7190 view,
7191 cx,
7192 );
7193 });
7194 }
7195
7196 #[gpui::test]
7197 fn test_prev_next_word_bounds_with_soft_wrap(cx: &mut gpui::MutableAppContext) {
7198 cx.set_global(Settings::test(cx));
7199 let buffer = MultiBuffer::build_simple("use one::{\n two::three::four::five\n};", cx);
7200 let (_, view) = cx.add_window(Default::default(), |cx| build_editor(buffer, cx));
7201
7202 view.update(cx, |view, cx| {
7203 view.set_wrap_width(Some(140.), cx);
7204 assert_eq!(
7205 view.display_text(cx),
7206 "use one::{\n two::three::\n four::five\n};"
7207 );
7208
7209 view.change_selections(None, cx, |s| {
7210 s.select_display_ranges([DisplayPoint::new(1, 7)..DisplayPoint::new(1, 7)]);
7211 });
7212
7213 view.move_to_next_word_end(&MoveToNextWordEnd, cx);
7214 assert_eq!(
7215 view.selections.display_ranges(cx),
7216 &[DisplayPoint::new(1, 9)..DisplayPoint::new(1, 9)]
7217 );
7218
7219 view.move_to_next_word_end(&MoveToNextWordEnd, cx);
7220 assert_eq!(
7221 view.selections.display_ranges(cx),
7222 &[DisplayPoint::new(1, 14)..DisplayPoint::new(1, 14)]
7223 );
7224
7225 view.move_to_next_word_end(&MoveToNextWordEnd, cx);
7226 assert_eq!(
7227 view.selections.display_ranges(cx),
7228 &[DisplayPoint::new(2, 4)..DisplayPoint::new(2, 4)]
7229 );
7230
7231 view.move_to_next_word_end(&MoveToNextWordEnd, cx);
7232 assert_eq!(
7233 view.selections.display_ranges(cx),
7234 &[DisplayPoint::new(2, 8)..DisplayPoint::new(2, 8)]
7235 );
7236
7237 view.move_to_previous_word_start(&MoveToPreviousWordStart, cx);
7238 assert_eq!(
7239 view.selections.display_ranges(cx),
7240 &[DisplayPoint::new(2, 4)..DisplayPoint::new(2, 4)]
7241 );
7242
7243 view.move_to_previous_word_start(&MoveToPreviousWordStart, cx);
7244 assert_eq!(
7245 view.selections.display_ranges(cx),
7246 &[DisplayPoint::new(1, 14)..DisplayPoint::new(1, 14)]
7247 );
7248 });
7249 }
7250
7251 #[gpui::test]
7252 fn test_delete_to_beginning_of_line(cx: &mut gpui::MutableAppContext) {
7253 cx.set_global(Settings::test(cx));
7254 let (text, ranges) = marked_text_ranges("one [two three] four");
7255 let buffer = MultiBuffer::build_simple(&text, cx);
7256
7257 let (_, editor) = cx.add_window(Default::default(), |cx| build_editor(buffer.clone(), cx));
7258
7259 editor.update(cx, |editor, cx| {
7260 editor.change_selections(None, cx, |s| s.select_ranges(ranges));
7261 editor.delete_to_beginning_of_line(&DeleteToBeginningOfLine, cx);
7262 assert_eq!(editor.text(cx), " four");
7263 });
7264 }
7265
7266 #[gpui::test]
7267 fn test_delete_to_word_boundary(cx: &mut gpui::MutableAppContext) {
7268 cx.set_global(Settings::test(cx));
7269 let buffer = MultiBuffer::build_simple("one two three four", cx);
7270 let (_, view) = cx.add_window(Default::default(), |cx| build_editor(buffer.clone(), cx));
7271
7272 view.update(cx, |view, cx| {
7273 view.change_selections(None, cx, |s| {
7274 s.select_display_ranges([
7275 // an empty selection - the preceding word fragment is deleted
7276 DisplayPoint::new(0, 2)..DisplayPoint::new(0, 2),
7277 // characters selected - they are deleted
7278 DisplayPoint::new(0, 9)..DisplayPoint::new(0, 12),
7279 ])
7280 });
7281 view.delete_to_previous_word_start(&DeleteToPreviousWordStart, cx);
7282 });
7283
7284 assert_eq!(buffer.read(cx).read(cx).text(), "e two te four");
7285
7286 view.update(cx, |view, cx| {
7287 view.change_selections(None, cx, |s| {
7288 s.select_display_ranges([
7289 // an empty selection - the following word fragment is deleted
7290 DisplayPoint::new(0, 3)..DisplayPoint::new(0, 3),
7291 // characters selected - they are deleted
7292 DisplayPoint::new(0, 9)..DisplayPoint::new(0, 10),
7293 ])
7294 });
7295 view.delete_to_next_word_end(&DeleteToNextWordEnd, cx);
7296 });
7297
7298 assert_eq!(buffer.read(cx).read(cx).text(), "e t te our");
7299 }
7300
7301 #[gpui::test]
7302 fn test_newline(cx: &mut gpui::MutableAppContext) {
7303 cx.set_global(Settings::test(cx));
7304 let buffer = MultiBuffer::build_simple("aaaa\n bbbb\n", cx);
7305 let (_, view) = cx.add_window(Default::default(), |cx| build_editor(buffer.clone(), cx));
7306
7307 view.update(cx, |view, cx| {
7308 view.change_selections(None, cx, |s| {
7309 s.select_display_ranges([
7310 DisplayPoint::new(0, 2)..DisplayPoint::new(0, 2),
7311 DisplayPoint::new(1, 2)..DisplayPoint::new(1, 2),
7312 DisplayPoint::new(1, 6)..DisplayPoint::new(1, 6),
7313 ])
7314 });
7315
7316 view.newline(&Newline, cx);
7317 assert_eq!(view.text(cx), "aa\naa\n \n bb\n bb\n");
7318 });
7319 }
7320
7321 #[gpui::test]
7322 fn test_newline_with_old_selections(cx: &mut gpui::MutableAppContext) {
7323 cx.set_global(Settings::test(cx));
7324 let buffer = MultiBuffer::build_simple(
7325 "
7326 a
7327 b(
7328 X
7329 )
7330 c(
7331 X
7332 )
7333 "
7334 .unindent()
7335 .as_str(),
7336 cx,
7337 );
7338
7339 let (_, editor) = cx.add_window(Default::default(), |cx| {
7340 let mut editor = build_editor(buffer.clone(), cx);
7341 editor.change_selections(None, cx, |s| {
7342 s.select_ranges([
7343 Point::new(2, 4)..Point::new(2, 5),
7344 Point::new(5, 4)..Point::new(5, 5),
7345 ])
7346 });
7347 editor
7348 });
7349
7350 // Edit the buffer directly, deleting ranges surrounding the editor's selections
7351 buffer.update(cx, |buffer, cx| {
7352 buffer.edit(
7353 [
7354 (Point::new(1, 2)..Point::new(3, 0), ""),
7355 (Point::new(4, 2)..Point::new(6, 0), ""),
7356 ],
7357 cx,
7358 );
7359 assert_eq!(
7360 buffer.read(cx).text(),
7361 "
7362 a
7363 b()
7364 c()
7365 "
7366 .unindent()
7367 );
7368 });
7369
7370 editor.update(cx, |editor, cx| {
7371 assert_eq!(
7372 editor.selections.ranges(cx),
7373 &[
7374 Point::new(1, 2)..Point::new(1, 2),
7375 Point::new(2, 2)..Point::new(2, 2),
7376 ],
7377 );
7378
7379 editor.newline(&Newline, cx);
7380 assert_eq!(
7381 editor.text(cx),
7382 "
7383 a
7384 b(
7385 )
7386 c(
7387 )
7388 "
7389 .unindent()
7390 );
7391
7392 // The selections are moved after the inserted newlines
7393 assert_eq!(
7394 editor.selections.ranges(cx),
7395 &[
7396 Point::new(2, 0)..Point::new(2, 0),
7397 Point::new(4, 0)..Point::new(4, 0),
7398 ],
7399 );
7400 });
7401 }
7402
7403 #[gpui::test]
7404 fn test_insert_with_old_selections(cx: &mut gpui::MutableAppContext) {
7405 cx.set_global(Settings::test(cx));
7406 let buffer = MultiBuffer::build_simple("a( X ), b( Y ), c( Z )", cx);
7407 let (_, editor) = cx.add_window(Default::default(), |cx| {
7408 let mut editor = build_editor(buffer.clone(), cx);
7409 editor.change_selections(None, cx, |s| s.select_ranges([3..4, 11..12, 19..20]));
7410 editor
7411 });
7412
7413 // Edit the buffer directly, deleting ranges surrounding the editor's selections
7414 buffer.update(cx, |buffer, cx| {
7415 buffer.edit([(2..5, ""), (10..13, ""), (18..21, "")], cx);
7416 assert_eq!(buffer.read(cx).text(), "a(), b(), c()".unindent());
7417 });
7418
7419 editor.update(cx, |editor, cx| {
7420 assert_eq!(editor.selections.ranges(cx), &[2..2, 7..7, 12..12],);
7421
7422 editor.insert("Z", cx);
7423 assert_eq!(editor.text(cx), "a(Z), b(Z), c(Z)");
7424
7425 // The selections are moved after the inserted characters
7426 assert_eq!(editor.selections.ranges(cx), &[3..3, 9..9, 15..15],);
7427 });
7428 }
7429
7430 #[gpui::test]
7431 async fn test_indent_outdent(cx: &mut gpui::TestAppContext) {
7432 let mut cx = EditorTestContext::new(cx).await;
7433
7434 cx.set_state(indoc! {"
7435 [one} [two}
7436 three
7437 four"});
7438 cx.update_editor(|e, cx| e.tab(&Tab, cx));
7439 cx.assert_editor_state(indoc! {"
7440 [one} [two}
7441 three
7442 four"});
7443
7444 cx.update_editor(|e, cx| e.tab_prev(&TabPrev, cx));
7445 cx.assert_editor_state(indoc! {"
7446 [one} [two}
7447 three
7448 four"});
7449
7450 // select across line ending
7451 cx.set_state(indoc! {"
7452 one two
7453 t[hree
7454 } four"});
7455 cx.update_editor(|e, cx| e.tab(&Tab, cx));
7456 cx.assert_editor_state(indoc! {"
7457 one two
7458 t[hree
7459 } four"});
7460
7461 cx.update_editor(|e, cx| e.tab_prev(&TabPrev, cx));
7462 cx.assert_editor_state(indoc! {"
7463 one two
7464 t[hree
7465 } four"});
7466
7467 // Ensure that indenting/outdenting works when the cursor is at column 0.
7468 cx.set_state(indoc! {"
7469 one two
7470 |three
7471 four"});
7472 cx.update_editor(|e, cx| e.tab(&Tab, cx));
7473 cx.assert_editor_state(indoc! {"
7474 one two
7475 |three
7476 four"});
7477
7478 cx.set_state(indoc! {"
7479 one two
7480 | three
7481 four"});
7482 cx.update_editor(|e, cx| e.tab_prev(&TabPrev, cx));
7483 cx.assert_editor_state(indoc! {"
7484 one two
7485 |three
7486 four"});
7487 }
7488
7489 #[gpui::test]
7490 async fn test_indent_outdent_with_hard_tabs(cx: &mut gpui::TestAppContext) {
7491 let mut cx = EditorTestContext::new(cx).await;
7492 cx.update(|cx| {
7493 cx.update_global::<Settings, _, _>(|settings, _| {
7494 settings.hard_tabs = true;
7495 });
7496 });
7497
7498 // select two ranges on one line
7499 cx.set_state(indoc! {"
7500 [one} [two}
7501 three
7502 four"});
7503 cx.update_editor(|e, cx| e.tab(&Tab, cx));
7504 cx.assert_editor_state(indoc! {"
7505 \t[one} [two}
7506 three
7507 four"});
7508 cx.update_editor(|e, cx| e.tab(&Tab, cx));
7509 cx.assert_editor_state(indoc! {"
7510 \t\t[one} [two}
7511 three
7512 four"});
7513 cx.update_editor(|e, cx| e.tab_prev(&TabPrev, cx));
7514 cx.assert_editor_state(indoc! {"
7515 \t[one} [two}
7516 three
7517 four"});
7518 cx.update_editor(|e, cx| e.tab_prev(&TabPrev, cx));
7519 cx.assert_editor_state(indoc! {"
7520 [one} [two}
7521 three
7522 four"});
7523
7524 // select across a line ending
7525 cx.set_state(indoc! {"
7526 one two
7527 t[hree
7528 }four"});
7529 cx.update_editor(|e, cx| e.tab(&Tab, cx));
7530 cx.assert_editor_state(indoc! {"
7531 one two
7532 \tt[hree
7533 }four"});
7534 cx.update_editor(|e, cx| e.tab(&Tab, cx));
7535 cx.assert_editor_state(indoc! {"
7536 one two
7537 \t\tt[hree
7538 }four"});
7539 cx.update_editor(|e, cx| e.tab_prev(&TabPrev, cx));
7540 cx.assert_editor_state(indoc! {"
7541 one two
7542 \tt[hree
7543 }four"});
7544 cx.update_editor(|e, cx| e.tab_prev(&TabPrev, cx));
7545 cx.assert_editor_state(indoc! {"
7546 one two
7547 t[hree
7548 }four"});
7549
7550 // Ensure that indenting/outdenting works when the cursor is at column 0.
7551 cx.set_state(indoc! {"
7552 one two
7553 |three
7554 four"});
7555 cx.assert_editor_state(indoc! {"
7556 one two
7557 |three
7558 four"});
7559 cx.update_editor(|e, cx| e.tab(&Tab, cx));
7560 cx.assert_editor_state(indoc! {"
7561 one two
7562 \t|three
7563 four"});
7564 cx.update_editor(|e, cx| e.tab_prev(&TabPrev, cx));
7565 cx.assert_editor_state(indoc! {"
7566 one two
7567 |three
7568 four"});
7569 }
7570
7571 #[gpui::test]
7572 fn test_indent_outdent_with_excerpts(cx: &mut gpui::MutableAppContext) {
7573 cx.set_global(
7574 Settings::test(cx)
7575 .with_overrides(
7576 "TOML",
7577 LanguageOverride {
7578 tab_size: Some(2),
7579 ..Default::default()
7580 },
7581 )
7582 .with_overrides(
7583 "Rust",
7584 LanguageOverride {
7585 tab_size: Some(4),
7586 ..Default::default()
7587 },
7588 ),
7589 );
7590 let toml_language = Arc::new(Language::new(
7591 LanguageConfig {
7592 name: "TOML".into(),
7593 ..Default::default()
7594 },
7595 None,
7596 ));
7597 let rust_language = Arc::new(Language::new(
7598 LanguageConfig {
7599 name: "Rust".into(),
7600 ..Default::default()
7601 },
7602 None,
7603 ));
7604
7605 let toml_buffer = cx
7606 .add_model(|cx| Buffer::new(0, "a = 1\nb = 2\n", cx).with_language(toml_language, cx));
7607 let rust_buffer = cx.add_model(|cx| {
7608 Buffer::new(0, "const c: usize = 3;\n", cx).with_language(rust_language, cx)
7609 });
7610 let multibuffer = cx.add_model(|cx| {
7611 let mut multibuffer = MultiBuffer::new(0);
7612 multibuffer.push_excerpts(
7613 toml_buffer.clone(),
7614 [ExcerptRange {
7615 context: Point::new(0, 0)..Point::new(2, 0),
7616 primary: None,
7617 }],
7618 cx,
7619 );
7620 multibuffer.push_excerpts(
7621 rust_buffer.clone(),
7622 [ExcerptRange {
7623 context: Point::new(0, 0)..Point::new(1, 0),
7624 primary: None,
7625 }],
7626 cx,
7627 );
7628 multibuffer
7629 });
7630
7631 cx.add_window(Default::default(), |cx| {
7632 let mut editor = build_editor(multibuffer, cx);
7633
7634 assert_eq!(
7635 editor.text(cx),
7636 indoc! {"
7637 a = 1
7638 b = 2
7639
7640 const c: usize = 3;
7641 "}
7642 );
7643
7644 select_ranges(
7645 &mut editor,
7646 indoc! {"
7647 [a] = 1
7648 b = 2
7649
7650 [const c:] usize = 3;
7651 "},
7652 cx,
7653 );
7654
7655 editor.tab(&Tab, cx);
7656 assert_text_with_selections(
7657 &mut editor,
7658 indoc! {"
7659 [a] = 1
7660 b = 2
7661
7662 [const c:] usize = 3;
7663 "},
7664 cx,
7665 );
7666 editor.tab_prev(&TabPrev, cx);
7667 assert_text_with_selections(
7668 &mut editor,
7669 indoc! {"
7670 [a] = 1
7671 b = 2
7672
7673 [const c:] usize = 3;
7674 "},
7675 cx,
7676 );
7677
7678 editor
7679 });
7680 }
7681
7682 #[gpui::test]
7683 async fn test_backspace(cx: &mut gpui::TestAppContext) {
7684 let mut cx = EditorTestContext::new(cx).await;
7685 // Basic backspace
7686 cx.set_state(indoc! {"
7687 on|e two three
7688 fou[r} five six
7689 seven {eight nine
7690 ]ten"});
7691 cx.update_editor(|e, cx| e.backspace(&Backspace, cx));
7692 cx.assert_editor_state(indoc! {"
7693 o|e two three
7694 fou| five six
7695 seven |ten"});
7696
7697 // Test backspace inside and around indents
7698 cx.set_state(indoc! {"
7699 zero
7700 |one
7701 |two
7702 | | | three
7703 | | four"});
7704 cx.update_editor(|e, cx| e.backspace(&Backspace, cx));
7705 cx.assert_editor_state(indoc! {"
7706 zero
7707 |one
7708 |two
7709 | three| four"});
7710
7711 // Test backspace with line_mode set to true
7712 cx.update_editor(|e, _| e.selections.line_mode = true);
7713 cx.set_state(indoc! {"
7714 The |quick |brown
7715 fox jumps over
7716 the lazy dog
7717 |The qu[ick b}rown"});
7718 cx.update_editor(|e, cx| e.backspace(&Backspace, cx));
7719 cx.assert_editor_state(indoc! {"
7720 |fox jumps over
7721 the lazy dog|"});
7722 }
7723
7724 #[gpui::test]
7725 async fn test_delete(cx: &mut gpui::TestAppContext) {
7726 let mut cx = EditorTestContext::new(cx).await;
7727
7728 cx.set_state(indoc! {"
7729 on|e two three
7730 fou[r} five six
7731 seven {eight nine
7732 ]ten"});
7733 cx.update_editor(|e, cx| e.delete(&Delete, cx));
7734 cx.assert_editor_state(indoc! {"
7735 on| two three
7736 fou| five six
7737 seven |ten"});
7738
7739 // Test backspace with line_mode set to true
7740 cx.update_editor(|e, _| e.selections.line_mode = true);
7741 cx.set_state(indoc! {"
7742 The |quick |brown
7743 fox {jum]ps over
7744 the lazy dog
7745 |The qu[ick b}rown"});
7746 cx.update_editor(|e, cx| e.backspace(&Backspace, cx));
7747 cx.assert_editor_state("|the lazy dog|");
7748 }
7749
7750 #[gpui::test]
7751 fn test_delete_line(cx: &mut gpui::MutableAppContext) {
7752 cx.set_global(Settings::test(cx));
7753 let buffer = MultiBuffer::build_simple("abc\ndef\nghi\n", cx);
7754 let (_, view) = cx.add_window(Default::default(), |cx| build_editor(buffer, cx));
7755 view.update(cx, |view, cx| {
7756 view.change_selections(None, cx, |s| {
7757 s.select_display_ranges([
7758 DisplayPoint::new(0, 1)..DisplayPoint::new(0, 1),
7759 DisplayPoint::new(1, 0)..DisplayPoint::new(1, 1),
7760 DisplayPoint::new(3, 0)..DisplayPoint::new(3, 0),
7761 ])
7762 });
7763 view.delete_line(&DeleteLine, cx);
7764 assert_eq!(view.display_text(cx), "ghi");
7765 assert_eq!(
7766 view.selections.display_ranges(cx),
7767 vec![
7768 DisplayPoint::new(0, 0)..DisplayPoint::new(0, 0),
7769 DisplayPoint::new(0, 1)..DisplayPoint::new(0, 1)
7770 ]
7771 );
7772 });
7773
7774 cx.set_global(Settings::test(cx));
7775 let buffer = MultiBuffer::build_simple("abc\ndef\nghi\n", cx);
7776 let (_, view) = cx.add_window(Default::default(), |cx| build_editor(buffer, cx));
7777 view.update(cx, |view, cx| {
7778 view.change_selections(None, cx, |s| {
7779 s.select_display_ranges([DisplayPoint::new(2, 0)..DisplayPoint::new(0, 1)])
7780 });
7781 view.delete_line(&DeleteLine, cx);
7782 assert_eq!(view.display_text(cx), "ghi\n");
7783 assert_eq!(
7784 view.selections.display_ranges(cx),
7785 vec![DisplayPoint::new(0, 1)..DisplayPoint::new(0, 1)]
7786 );
7787 });
7788 }
7789
7790 #[gpui::test]
7791 fn test_duplicate_line(cx: &mut gpui::MutableAppContext) {
7792 cx.set_global(Settings::test(cx));
7793 let buffer = MultiBuffer::build_simple("abc\ndef\nghi\n", cx);
7794 let (_, view) = cx.add_window(Default::default(), |cx| build_editor(buffer, cx));
7795 view.update(cx, |view, cx| {
7796 view.change_selections(None, cx, |s| {
7797 s.select_display_ranges([
7798 DisplayPoint::new(0, 0)..DisplayPoint::new(0, 1),
7799 DisplayPoint::new(0, 2)..DisplayPoint::new(0, 2),
7800 DisplayPoint::new(1, 0)..DisplayPoint::new(1, 0),
7801 DisplayPoint::new(3, 0)..DisplayPoint::new(3, 0),
7802 ])
7803 });
7804 view.duplicate_line(&DuplicateLine, cx);
7805 assert_eq!(view.display_text(cx), "abc\nabc\ndef\ndef\nghi\n\n");
7806 assert_eq!(
7807 view.selections.display_ranges(cx),
7808 vec![
7809 DisplayPoint::new(1, 0)..DisplayPoint::new(1, 1),
7810 DisplayPoint::new(1, 2)..DisplayPoint::new(1, 2),
7811 DisplayPoint::new(3, 0)..DisplayPoint::new(3, 0),
7812 DisplayPoint::new(6, 0)..DisplayPoint::new(6, 0),
7813 ]
7814 );
7815 });
7816
7817 let buffer = MultiBuffer::build_simple("abc\ndef\nghi\n", cx);
7818 let (_, view) = cx.add_window(Default::default(), |cx| build_editor(buffer, cx));
7819 view.update(cx, |view, cx| {
7820 view.change_selections(None, cx, |s| {
7821 s.select_display_ranges([
7822 DisplayPoint::new(0, 1)..DisplayPoint::new(1, 1),
7823 DisplayPoint::new(1, 2)..DisplayPoint::new(2, 1),
7824 ])
7825 });
7826 view.duplicate_line(&DuplicateLine, cx);
7827 assert_eq!(view.display_text(cx), "abc\ndef\nghi\nabc\ndef\nghi\n");
7828 assert_eq!(
7829 view.selections.display_ranges(cx),
7830 vec![
7831 DisplayPoint::new(3, 1)..DisplayPoint::new(4, 1),
7832 DisplayPoint::new(4, 2)..DisplayPoint::new(5, 1),
7833 ]
7834 );
7835 });
7836 }
7837
7838 #[gpui::test]
7839 fn test_move_line_up_down(cx: &mut gpui::MutableAppContext) {
7840 cx.set_global(Settings::test(cx));
7841 let buffer = MultiBuffer::build_simple(&sample_text(10, 5, 'a'), cx);
7842 let (_, view) = cx.add_window(Default::default(), |cx| build_editor(buffer, cx));
7843 view.update(cx, |view, cx| {
7844 view.fold_ranges(
7845 vec![
7846 Point::new(0, 2)..Point::new(1, 2),
7847 Point::new(2, 3)..Point::new(4, 1),
7848 Point::new(7, 0)..Point::new(8, 4),
7849 ],
7850 cx,
7851 );
7852 view.change_selections(None, cx, |s| {
7853 s.select_display_ranges([
7854 DisplayPoint::new(0, 1)..DisplayPoint::new(0, 1),
7855 DisplayPoint::new(3, 1)..DisplayPoint::new(3, 1),
7856 DisplayPoint::new(3, 2)..DisplayPoint::new(4, 3),
7857 DisplayPoint::new(5, 0)..DisplayPoint::new(5, 2),
7858 ])
7859 });
7860 assert_eq!(
7861 view.display_text(cx),
7862 "aa…bbb\nccc…eeee\nfffff\nggggg\n…i\njjjjj"
7863 );
7864
7865 view.move_line_up(&MoveLineUp, cx);
7866 assert_eq!(
7867 view.display_text(cx),
7868 "aa…bbb\nccc…eeee\nggggg\n…i\njjjjj\nfffff"
7869 );
7870 assert_eq!(
7871 view.selections.display_ranges(cx),
7872 vec![
7873 DisplayPoint::new(0, 1)..DisplayPoint::new(0, 1),
7874 DisplayPoint::new(2, 1)..DisplayPoint::new(2, 1),
7875 DisplayPoint::new(2, 2)..DisplayPoint::new(3, 3),
7876 DisplayPoint::new(4, 0)..DisplayPoint::new(4, 2)
7877 ]
7878 );
7879 });
7880
7881 view.update(cx, |view, cx| {
7882 view.move_line_down(&MoveLineDown, cx);
7883 assert_eq!(
7884 view.display_text(cx),
7885 "ccc…eeee\naa…bbb\nfffff\nggggg\n…i\njjjjj"
7886 );
7887 assert_eq!(
7888 view.selections.display_ranges(cx),
7889 vec![
7890 DisplayPoint::new(1, 1)..DisplayPoint::new(1, 1),
7891 DisplayPoint::new(3, 1)..DisplayPoint::new(3, 1),
7892 DisplayPoint::new(3, 2)..DisplayPoint::new(4, 3),
7893 DisplayPoint::new(5, 0)..DisplayPoint::new(5, 2)
7894 ]
7895 );
7896 });
7897
7898 view.update(cx, |view, cx| {
7899 view.move_line_down(&MoveLineDown, cx);
7900 assert_eq!(
7901 view.display_text(cx),
7902 "ccc…eeee\nfffff\naa…bbb\nggggg\n…i\njjjjj"
7903 );
7904 assert_eq!(
7905 view.selections.display_ranges(cx),
7906 vec![
7907 DisplayPoint::new(2, 1)..DisplayPoint::new(2, 1),
7908 DisplayPoint::new(3, 1)..DisplayPoint::new(3, 1),
7909 DisplayPoint::new(3, 2)..DisplayPoint::new(4, 3),
7910 DisplayPoint::new(5, 0)..DisplayPoint::new(5, 2)
7911 ]
7912 );
7913 });
7914
7915 view.update(cx, |view, cx| {
7916 view.move_line_up(&MoveLineUp, cx);
7917 assert_eq!(
7918 view.display_text(cx),
7919 "ccc…eeee\naa…bbb\nggggg\n…i\njjjjj\nfffff"
7920 );
7921 assert_eq!(
7922 view.selections.display_ranges(cx),
7923 vec![
7924 DisplayPoint::new(1, 1)..DisplayPoint::new(1, 1),
7925 DisplayPoint::new(2, 1)..DisplayPoint::new(2, 1),
7926 DisplayPoint::new(2, 2)..DisplayPoint::new(3, 3),
7927 DisplayPoint::new(4, 0)..DisplayPoint::new(4, 2)
7928 ]
7929 );
7930 });
7931 }
7932
7933 #[gpui::test]
7934 fn test_move_line_up_down_with_blocks(cx: &mut gpui::MutableAppContext) {
7935 cx.set_global(Settings::test(cx));
7936 let buffer = MultiBuffer::build_simple(&sample_text(10, 5, 'a'), cx);
7937 let snapshot = buffer.read(cx).snapshot(cx);
7938 let (_, editor) = cx.add_window(Default::default(), |cx| build_editor(buffer, cx));
7939 editor.update(cx, |editor, cx| {
7940 editor.insert_blocks(
7941 [BlockProperties {
7942 position: snapshot.anchor_after(Point::new(2, 0)),
7943 disposition: BlockDisposition::Below,
7944 height: 1,
7945 render: Arc::new(|_| Empty::new().boxed()),
7946 }],
7947 cx,
7948 );
7949 editor.change_selections(None, cx, |s| {
7950 s.select_ranges([Point::new(2, 0)..Point::new(2, 0)])
7951 });
7952 editor.move_line_down(&MoveLineDown, cx);
7953 });
7954 }
7955
7956 #[gpui::test]
7957 fn test_transpose(cx: &mut gpui::MutableAppContext) {
7958 cx.set_global(Settings::test(cx));
7959
7960 cx.add_window(Default::default(), |cx| {
7961 let mut editor = build_editor(MultiBuffer::build_simple("abc", cx), cx);
7962
7963 editor.change_selections(None, cx, |s| s.select_ranges([1..1]));
7964 editor.transpose(&Default::default(), cx);
7965 assert_eq!(editor.text(cx), "bac");
7966 assert_eq!(editor.selections.ranges(cx), [2..2]);
7967
7968 editor.transpose(&Default::default(), cx);
7969 assert_eq!(editor.text(cx), "bca");
7970 assert_eq!(editor.selections.ranges(cx), [3..3]);
7971
7972 editor.transpose(&Default::default(), cx);
7973 assert_eq!(editor.text(cx), "bac");
7974 assert_eq!(editor.selections.ranges(cx), [3..3]);
7975
7976 editor
7977 })
7978 .1;
7979
7980 cx.add_window(Default::default(), |cx| {
7981 let mut editor = build_editor(MultiBuffer::build_simple("abc\nde", cx), cx);
7982
7983 editor.change_selections(None, cx, |s| s.select_ranges([3..3]));
7984 editor.transpose(&Default::default(), cx);
7985 assert_eq!(editor.text(cx), "acb\nde");
7986 assert_eq!(editor.selections.ranges(cx), [3..3]);
7987
7988 editor.change_selections(None, cx, |s| s.select_ranges([4..4]));
7989 editor.transpose(&Default::default(), cx);
7990 assert_eq!(editor.text(cx), "acbd\ne");
7991 assert_eq!(editor.selections.ranges(cx), [5..5]);
7992
7993 editor.transpose(&Default::default(), cx);
7994 assert_eq!(editor.text(cx), "acbde\n");
7995 assert_eq!(editor.selections.ranges(cx), [6..6]);
7996
7997 editor.transpose(&Default::default(), cx);
7998 assert_eq!(editor.text(cx), "acbd\ne");
7999 assert_eq!(editor.selections.ranges(cx), [6..6]);
8000
8001 editor
8002 })
8003 .1;
8004
8005 cx.add_window(Default::default(), |cx| {
8006 let mut editor = build_editor(MultiBuffer::build_simple("abc\nde", cx), cx);
8007
8008 editor.change_selections(None, cx, |s| s.select_ranges([1..1, 2..2, 4..4]));
8009 editor.transpose(&Default::default(), cx);
8010 assert_eq!(editor.text(cx), "bacd\ne");
8011 assert_eq!(editor.selections.ranges(cx), [2..2, 3..3, 5..5]);
8012
8013 editor.transpose(&Default::default(), cx);
8014 assert_eq!(editor.text(cx), "bcade\n");
8015 assert_eq!(editor.selections.ranges(cx), [3..3, 4..4, 6..6]);
8016
8017 editor.transpose(&Default::default(), cx);
8018 assert_eq!(editor.text(cx), "bcda\ne");
8019 assert_eq!(editor.selections.ranges(cx), [4..4, 6..6]);
8020
8021 editor.transpose(&Default::default(), cx);
8022 assert_eq!(editor.text(cx), "bcade\n");
8023 assert_eq!(editor.selections.ranges(cx), [4..4, 6..6]);
8024
8025 editor.transpose(&Default::default(), cx);
8026 assert_eq!(editor.text(cx), "bcaed\n");
8027 assert_eq!(editor.selections.ranges(cx), [5..5, 6..6]);
8028
8029 editor
8030 })
8031 .1;
8032
8033 cx.add_window(Default::default(), |cx| {
8034 let mut editor = build_editor(MultiBuffer::build_simple("🍐🏀✋", cx), cx);
8035
8036 editor.change_selections(None, cx, |s| s.select_ranges([4..4]));
8037 editor.transpose(&Default::default(), cx);
8038 assert_eq!(editor.text(cx), "🏀🍐✋");
8039 assert_eq!(editor.selections.ranges(cx), [8..8]);
8040
8041 editor.transpose(&Default::default(), cx);
8042 assert_eq!(editor.text(cx), "🏀✋🍐");
8043 assert_eq!(editor.selections.ranges(cx), [11..11]);
8044
8045 editor.transpose(&Default::default(), cx);
8046 assert_eq!(editor.text(cx), "🏀🍐✋");
8047 assert_eq!(editor.selections.ranges(cx), [11..11]);
8048
8049 editor
8050 })
8051 .1;
8052 }
8053
8054 #[gpui::test]
8055 async fn test_clipboard(cx: &mut gpui::TestAppContext) {
8056 let mut cx = EditorTestContext::new(cx).await;
8057
8058 cx.set_state("[one✅ }two [three }four [five }six ");
8059 cx.update_editor(|e, cx| e.cut(&Cut, cx));
8060 cx.assert_editor_state("|two |four |six ");
8061
8062 // Paste with three cursors. Each cursor pastes one slice of the clipboard text.
8063 cx.set_state("two |four |six |");
8064 cx.update_editor(|e, cx| e.paste(&Paste, cx));
8065 cx.assert_editor_state("two one✅ |four three |six five |");
8066
8067 // Paste again but with only two cursors. Since the number of cursors doesn't
8068 // match the number of slices in the clipboard, the entire clipboard text
8069 // is pasted at each cursor.
8070 cx.set_state("|two one✅ four three six five |");
8071 cx.update_editor(|e, cx| {
8072 e.handle_input(&Input("( ".into()), cx);
8073 e.paste(&Paste, cx);
8074 e.handle_input(&Input(") ".into()), cx);
8075 });
8076 cx.assert_editor_state(indoc! {"
8077 ( one✅
8078 three
8079 five ) |two one✅ four three six five ( one✅
8080 three
8081 five ) |"});
8082
8083 // Cut with three selections, one of which is full-line.
8084 cx.set_state(indoc! {"
8085 1[2}3
8086 4|567
8087 [8}9"});
8088 cx.update_editor(|e, cx| e.cut(&Cut, cx));
8089 cx.assert_editor_state(indoc! {"
8090 1|3
8091 |9"});
8092
8093 // Paste with three selections, noticing how the copied selection that was full-line
8094 // gets inserted before the second cursor.
8095 cx.set_state(indoc! {"
8096 1|3
8097 9|
8098 [o}ne"});
8099 cx.update_editor(|e, cx| e.paste(&Paste, cx));
8100 cx.assert_editor_state(indoc! {"
8101 12|3
8102 4567
8103 9|
8104 8|ne"});
8105
8106 // Copy with a single cursor only, which writes the whole line into the clipboard.
8107 cx.set_state(indoc! {"
8108 The quick brown
8109 fox ju|mps over
8110 the lazy dog"});
8111 cx.update_editor(|e, cx| e.copy(&Copy, cx));
8112 cx.assert_clipboard_content(Some("fox jumps over\n"));
8113
8114 // Paste with three selections, noticing how the copied full-line selection is inserted
8115 // before the empty selections but replaces the selection that is non-empty.
8116 cx.set_state(indoc! {"
8117 T|he quick brown
8118 [fo}x jumps over
8119 t|he lazy dog"});
8120 cx.update_editor(|e, cx| e.paste(&Paste, cx));
8121 cx.assert_editor_state(indoc! {"
8122 fox jumps over
8123 T|he quick brown
8124 fox jumps over
8125 |x jumps over
8126 fox jumps over
8127 t|he lazy dog"});
8128 }
8129
8130 #[gpui::test]
8131 fn test_select_all(cx: &mut gpui::MutableAppContext) {
8132 cx.set_global(Settings::test(cx));
8133 let buffer = MultiBuffer::build_simple("abc\nde\nfgh", cx);
8134 let (_, view) = cx.add_window(Default::default(), |cx| build_editor(buffer, cx));
8135 view.update(cx, |view, cx| {
8136 view.select_all(&SelectAll, cx);
8137 assert_eq!(
8138 view.selections.display_ranges(cx),
8139 &[DisplayPoint::new(0, 0)..DisplayPoint::new(2, 3)]
8140 );
8141 });
8142 }
8143
8144 #[gpui::test]
8145 fn test_select_line(cx: &mut gpui::MutableAppContext) {
8146 cx.set_global(Settings::test(cx));
8147 let buffer = MultiBuffer::build_simple(&sample_text(6, 5, 'a'), cx);
8148 let (_, view) = cx.add_window(Default::default(), |cx| build_editor(buffer, cx));
8149 view.update(cx, |view, cx| {
8150 view.change_selections(None, cx, |s| {
8151 s.select_display_ranges([
8152 DisplayPoint::new(0, 0)..DisplayPoint::new(0, 1),
8153 DisplayPoint::new(0, 2)..DisplayPoint::new(0, 2),
8154 DisplayPoint::new(1, 0)..DisplayPoint::new(1, 0),
8155 DisplayPoint::new(4, 2)..DisplayPoint::new(4, 2),
8156 ])
8157 });
8158 view.select_line(&SelectLine, cx);
8159 assert_eq!(
8160 view.selections.display_ranges(cx),
8161 vec![
8162 DisplayPoint::new(0, 0)..DisplayPoint::new(2, 0),
8163 DisplayPoint::new(4, 0)..DisplayPoint::new(5, 0),
8164 ]
8165 );
8166 });
8167
8168 view.update(cx, |view, cx| {
8169 view.select_line(&SelectLine, cx);
8170 assert_eq!(
8171 view.selections.display_ranges(cx),
8172 vec![
8173 DisplayPoint::new(0, 0)..DisplayPoint::new(3, 0),
8174 DisplayPoint::new(4, 0)..DisplayPoint::new(5, 5),
8175 ]
8176 );
8177 });
8178
8179 view.update(cx, |view, cx| {
8180 view.select_line(&SelectLine, cx);
8181 assert_eq!(
8182 view.selections.display_ranges(cx),
8183 vec![DisplayPoint::new(0, 0)..DisplayPoint::new(5, 5)]
8184 );
8185 });
8186 }
8187
8188 #[gpui::test]
8189 fn test_split_selection_into_lines(cx: &mut gpui::MutableAppContext) {
8190 cx.set_global(Settings::test(cx));
8191 let buffer = MultiBuffer::build_simple(&sample_text(9, 5, 'a'), cx);
8192 let (_, view) = cx.add_window(Default::default(), |cx| build_editor(buffer, cx));
8193 view.update(cx, |view, cx| {
8194 view.fold_ranges(
8195 vec![
8196 Point::new(0, 2)..Point::new(1, 2),
8197 Point::new(2, 3)..Point::new(4, 1),
8198 Point::new(7, 0)..Point::new(8, 4),
8199 ],
8200 cx,
8201 );
8202 view.change_selections(None, cx, |s| {
8203 s.select_display_ranges([
8204 DisplayPoint::new(0, 0)..DisplayPoint::new(0, 1),
8205 DisplayPoint::new(0, 2)..DisplayPoint::new(0, 2),
8206 DisplayPoint::new(1, 0)..DisplayPoint::new(1, 0),
8207 DisplayPoint::new(4, 4)..DisplayPoint::new(4, 4),
8208 ])
8209 });
8210 assert_eq!(view.display_text(cx), "aa…bbb\nccc…eeee\nfffff\nggggg\n…i");
8211 });
8212
8213 view.update(cx, |view, cx| {
8214 view.split_selection_into_lines(&SplitSelectionIntoLines, cx);
8215 assert_eq!(
8216 view.display_text(cx),
8217 "aaaaa\nbbbbb\nccc…eeee\nfffff\nggggg\n…i"
8218 );
8219 assert_eq!(
8220 view.selections.display_ranges(cx),
8221 [
8222 DisplayPoint::new(0, 1)..DisplayPoint::new(0, 1),
8223 DisplayPoint::new(0, 2)..DisplayPoint::new(0, 2),
8224 DisplayPoint::new(2, 0)..DisplayPoint::new(2, 0),
8225 DisplayPoint::new(5, 4)..DisplayPoint::new(5, 4)
8226 ]
8227 );
8228 });
8229
8230 view.update(cx, |view, cx| {
8231 view.change_selections(None, cx, |s| {
8232 s.select_display_ranges([DisplayPoint::new(5, 0)..DisplayPoint::new(0, 1)])
8233 });
8234 view.split_selection_into_lines(&SplitSelectionIntoLines, cx);
8235 assert_eq!(
8236 view.display_text(cx),
8237 "aaaaa\nbbbbb\nccccc\nddddd\neeeee\nfffff\nggggg\nhhhhh\niiiii"
8238 );
8239 assert_eq!(
8240 view.selections.display_ranges(cx),
8241 [
8242 DisplayPoint::new(0, 5)..DisplayPoint::new(0, 5),
8243 DisplayPoint::new(1, 5)..DisplayPoint::new(1, 5),
8244 DisplayPoint::new(2, 5)..DisplayPoint::new(2, 5),
8245 DisplayPoint::new(3, 5)..DisplayPoint::new(3, 5),
8246 DisplayPoint::new(4, 5)..DisplayPoint::new(4, 5),
8247 DisplayPoint::new(5, 5)..DisplayPoint::new(5, 5),
8248 DisplayPoint::new(6, 5)..DisplayPoint::new(6, 5),
8249 DisplayPoint::new(7, 0)..DisplayPoint::new(7, 0)
8250 ]
8251 );
8252 });
8253 }
8254
8255 #[gpui::test]
8256 fn test_add_selection_above_below(cx: &mut gpui::MutableAppContext) {
8257 cx.set_global(Settings::test(cx));
8258 let buffer = MultiBuffer::build_simple("abc\ndefghi\n\njk\nlmno\n", cx);
8259 let (_, view) = cx.add_window(Default::default(), |cx| build_editor(buffer, cx));
8260
8261 view.update(cx, |view, cx| {
8262 view.change_selections(None, cx, |s| {
8263 s.select_display_ranges([DisplayPoint::new(1, 3)..DisplayPoint::new(1, 3)])
8264 });
8265 });
8266 view.update(cx, |view, cx| {
8267 view.add_selection_above(&AddSelectionAbove, cx);
8268 assert_eq!(
8269 view.selections.display_ranges(cx),
8270 vec![
8271 DisplayPoint::new(0, 3)..DisplayPoint::new(0, 3),
8272 DisplayPoint::new(1, 3)..DisplayPoint::new(1, 3)
8273 ]
8274 );
8275 });
8276
8277 view.update(cx, |view, cx| {
8278 view.add_selection_above(&AddSelectionAbove, cx);
8279 assert_eq!(
8280 view.selections.display_ranges(cx),
8281 vec![
8282 DisplayPoint::new(0, 3)..DisplayPoint::new(0, 3),
8283 DisplayPoint::new(1, 3)..DisplayPoint::new(1, 3)
8284 ]
8285 );
8286 });
8287
8288 view.update(cx, |view, cx| {
8289 view.add_selection_below(&AddSelectionBelow, cx);
8290 assert_eq!(
8291 view.selections.display_ranges(cx),
8292 vec![DisplayPoint::new(1, 3)..DisplayPoint::new(1, 3)]
8293 );
8294
8295 view.undo_selection(&UndoSelection, cx);
8296 assert_eq!(
8297 view.selections.display_ranges(cx),
8298 vec![
8299 DisplayPoint::new(0, 3)..DisplayPoint::new(0, 3),
8300 DisplayPoint::new(1, 3)..DisplayPoint::new(1, 3)
8301 ]
8302 );
8303
8304 view.redo_selection(&RedoSelection, cx);
8305 assert_eq!(
8306 view.selections.display_ranges(cx),
8307 vec![DisplayPoint::new(1, 3)..DisplayPoint::new(1, 3)]
8308 );
8309 });
8310
8311 view.update(cx, |view, cx| {
8312 view.add_selection_below(&AddSelectionBelow, cx);
8313 assert_eq!(
8314 view.selections.display_ranges(cx),
8315 vec![
8316 DisplayPoint::new(1, 3)..DisplayPoint::new(1, 3),
8317 DisplayPoint::new(4, 3)..DisplayPoint::new(4, 3)
8318 ]
8319 );
8320 });
8321
8322 view.update(cx, |view, cx| {
8323 view.add_selection_below(&AddSelectionBelow, cx);
8324 assert_eq!(
8325 view.selections.display_ranges(cx),
8326 vec![
8327 DisplayPoint::new(1, 3)..DisplayPoint::new(1, 3),
8328 DisplayPoint::new(4, 3)..DisplayPoint::new(4, 3)
8329 ]
8330 );
8331 });
8332
8333 view.update(cx, |view, cx| {
8334 view.change_selections(None, cx, |s| {
8335 s.select_display_ranges([DisplayPoint::new(1, 4)..DisplayPoint::new(1, 3)])
8336 });
8337 });
8338 view.update(cx, |view, cx| {
8339 view.add_selection_below(&AddSelectionBelow, cx);
8340 assert_eq!(
8341 view.selections.display_ranges(cx),
8342 vec![
8343 DisplayPoint::new(1, 4)..DisplayPoint::new(1, 3),
8344 DisplayPoint::new(4, 4)..DisplayPoint::new(4, 3)
8345 ]
8346 );
8347 });
8348
8349 view.update(cx, |view, cx| {
8350 view.add_selection_below(&AddSelectionBelow, cx);
8351 assert_eq!(
8352 view.selections.display_ranges(cx),
8353 vec![
8354 DisplayPoint::new(1, 4)..DisplayPoint::new(1, 3),
8355 DisplayPoint::new(4, 4)..DisplayPoint::new(4, 3)
8356 ]
8357 );
8358 });
8359
8360 view.update(cx, |view, cx| {
8361 view.add_selection_above(&AddSelectionAbove, cx);
8362 assert_eq!(
8363 view.selections.display_ranges(cx),
8364 vec![DisplayPoint::new(1, 4)..DisplayPoint::new(1, 3)]
8365 );
8366 });
8367
8368 view.update(cx, |view, cx| {
8369 view.add_selection_above(&AddSelectionAbove, cx);
8370 assert_eq!(
8371 view.selections.display_ranges(cx),
8372 vec![DisplayPoint::new(1, 4)..DisplayPoint::new(1, 3)]
8373 );
8374 });
8375
8376 view.update(cx, |view, cx| {
8377 view.change_selections(None, cx, |s| {
8378 s.select_display_ranges([DisplayPoint::new(0, 1)..DisplayPoint::new(1, 4)])
8379 });
8380 view.add_selection_below(&AddSelectionBelow, cx);
8381 assert_eq!(
8382 view.selections.display_ranges(cx),
8383 vec![
8384 DisplayPoint::new(0, 1)..DisplayPoint::new(0, 3),
8385 DisplayPoint::new(1, 1)..DisplayPoint::new(1, 4),
8386 DisplayPoint::new(3, 1)..DisplayPoint::new(3, 2),
8387 ]
8388 );
8389 });
8390
8391 view.update(cx, |view, cx| {
8392 view.add_selection_below(&AddSelectionBelow, cx);
8393 assert_eq!(
8394 view.selections.display_ranges(cx),
8395 vec![
8396 DisplayPoint::new(0, 1)..DisplayPoint::new(0, 3),
8397 DisplayPoint::new(1, 1)..DisplayPoint::new(1, 4),
8398 DisplayPoint::new(3, 1)..DisplayPoint::new(3, 2),
8399 DisplayPoint::new(4, 1)..DisplayPoint::new(4, 4),
8400 ]
8401 );
8402 });
8403
8404 view.update(cx, |view, cx| {
8405 view.add_selection_above(&AddSelectionAbove, cx);
8406 assert_eq!(
8407 view.selections.display_ranges(cx),
8408 vec![
8409 DisplayPoint::new(0, 1)..DisplayPoint::new(0, 3),
8410 DisplayPoint::new(1, 1)..DisplayPoint::new(1, 4),
8411 DisplayPoint::new(3, 1)..DisplayPoint::new(3, 2),
8412 ]
8413 );
8414 });
8415
8416 view.update(cx, |view, cx| {
8417 view.change_selections(None, cx, |s| {
8418 s.select_display_ranges([DisplayPoint::new(4, 3)..DisplayPoint::new(1, 1)])
8419 });
8420 });
8421 view.update(cx, |view, cx| {
8422 view.add_selection_above(&AddSelectionAbove, cx);
8423 assert_eq!(
8424 view.selections.display_ranges(cx),
8425 vec![
8426 DisplayPoint::new(0, 3)..DisplayPoint::new(0, 1),
8427 DisplayPoint::new(1, 3)..DisplayPoint::new(1, 1),
8428 DisplayPoint::new(3, 2)..DisplayPoint::new(3, 1),
8429 DisplayPoint::new(4, 3)..DisplayPoint::new(4, 1),
8430 ]
8431 );
8432 });
8433
8434 view.update(cx, |view, cx| {
8435 view.add_selection_below(&AddSelectionBelow, cx);
8436 assert_eq!(
8437 view.selections.display_ranges(cx),
8438 vec![
8439 DisplayPoint::new(1, 3)..DisplayPoint::new(1, 1),
8440 DisplayPoint::new(3, 2)..DisplayPoint::new(3, 1),
8441 DisplayPoint::new(4, 3)..DisplayPoint::new(4, 1),
8442 ]
8443 );
8444 });
8445 }
8446
8447 #[gpui::test]
8448 fn test_select_next(cx: &mut gpui::MutableAppContext) {
8449 cx.set_global(Settings::test(cx));
8450
8451 let (text, ranges) = marked_text_ranges("[abc]\n[abc] [abc]\ndefabc\n[abc]");
8452 let buffer = MultiBuffer::build_simple(&text, cx);
8453 let (_, view) = cx.add_window(Default::default(), |cx| build_editor(buffer, cx));
8454
8455 view.update(cx, |view, cx| {
8456 view.change_selections(None, cx, |s| {
8457 s.select_ranges([ranges[1].start + 1..ranges[1].start + 1])
8458 });
8459 view.select_next(
8460 &SelectNext {
8461 replace_newest: false,
8462 },
8463 cx,
8464 );
8465 assert_eq!(view.selections.ranges(cx), &ranges[1..2]);
8466
8467 view.select_next(
8468 &SelectNext {
8469 replace_newest: false,
8470 },
8471 cx,
8472 );
8473 assert_eq!(view.selections.ranges(cx), &ranges[1..3]);
8474
8475 view.undo_selection(&UndoSelection, cx);
8476 assert_eq!(view.selections.ranges(cx), &ranges[1..2]);
8477
8478 view.redo_selection(&RedoSelection, cx);
8479 assert_eq!(view.selections.ranges(cx), &ranges[1..3]);
8480
8481 view.select_next(
8482 &SelectNext {
8483 replace_newest: false,
8484 },
8485 cx,
8486 );
8487 assert_eq!(view.selections.ranges(cx), &ranges[1..4]);
8488
8489 view.select_next(
8490 &SelectNext {
8491 replace_newest: false,
8492 },
8493 cx,
8494 );
8495 assert_eq!(view.selections.ranges(cx), &ranges[0..4]);
8496 });
8497 }
8498
8499 #[gpui::test]
8500 async fn test_select_larger_smaller_syntax_node(cx: &mut gpui::TestAppContext) {
8501 cx.update(|cx| cx.set_global(Settings::test(cx)));
8502 let language = Arc::new(Language::new(
8503 LanguageConfig::default(),
8504 Some(tree_sitter_rust::language()),
8505 ));
8506
8507 let text = r#"
8508 use mod1::mod2::{mod3, mod4};
8509
8510 fn fn_1(param1: bool, param2: &str) {
8511 let var1 = "text";
8512 }
8513 "#
8514 .unindent();
8515
8516 let buffer = cx.add_model(|cx| Buffer::new(0, text, cx).with_language(language, cx));
8517 let buffer = cx.add_model(|cx| MultiBuffer::singleton(buffer, cx));
8518 let (_, view) = cx.add_window(|cx| build_editor(buffer, cx));
8519 view.condition(&cx, |view, cx| !view.buffer.read(cx).is_parsing(cx))
8520 .await;
8521
8522 view.update(cx, |view, cx| {
8523 view.change_selections(None, cx, |s| {
8524 s.select_display_ranges([
8525 DisplayPoint::new(0, 25)..DisplayPoint::new(0, 25),
8526 DisplayPoint::new(2, 24)..DisplayPoint::new(2, 12),
8527 DisplayPoint::new(3, 18)..DisplayPoint::new(3, 18),
8528 ]);
8529 });
8530 view.select_larger_syntax_node(&SelectLargerSyntaxNode, cx);
8531 });
8532 assert_eq!(
8533 view.update(cx, |view, cx| { view.selections.display_ranges(cx) }),
8534 &[
8535 DisplayPoint::new(0, 23)..DisplayPoint::new(0, 27),
8536 DisplayPoint::new(2, 35)..DisplayPoint::new(2, 7),
8537 DisplayPoint::new(3, 15)..DisplayPoint::new(3, 21),
8538 ]
8539 );
8540
8541 view.update(cx, |view, cx| {
8542 view.select_larger_syntax_node(&SelectLargerSyntaxNode, cx);
8543 });
8544 assert_eq!(
8545 view.update(cx, |view, cx| view.selections.display_ranges(cx)),
8546 &[
8547 DisplayPoint::new(0, 16)..DisplayPoint::new(0, 28),
8548 DisplayPoint::new(4, 1)..DisplayPoint::new(2, 0),
8549 ]
8550 );
8551
8552 view.update(cx, |view, cx| {
8553 view.select_larger_syntax_node(&SelectLargerSyntaxNode, cx);
8554 });
8555 assert_eq!(
8556 view.update(cx, |view, cx| view.selections.display_ranges(cx)),
8557 &[DisplayPoint::new(5, 0)..DisplayPoint::new(0, 0)]
8558 );
8559
8560 // Trying to expand the selected syntax node one more time has no effect.
8561 view.update(cx, |view, cx| {
8562 view.select_larger_syntax_node(&SelectLargerSyntaxNode, cx);
8563 });
8564 assert_eq!(
8565 view.update(cx, |view, cx| view.selections.display_ranges(cx)),
8566 &[DisplayPoint::new(5, 0)..DisplayPoint::new(0, 0)]
8567 );
8568
8569 view.update(cx, |view, cx| {
8570 view.select_smaller_syntax_node(&SelectSmallerSyntaxNode, cx);
8571 });
8572 assert_eq!(
8573 view.update(cx, |view, cx| view.selections.display_ranges(cx)),
8574 &[
8575 DisplayPoint::new(0, 16)..DisplayPoint::new(0, 28),
8576 DisplayPoint::new(4, 1)..DisplayPoint::new(2, 0),
8577 ]
8578 );
8579
8580 view.update(cx, |view, cx| {
8581 view.select_smaller_syntax_node(&SelectSmallerSyntaxNode, cx);
8582 });
8583 assert_eq!(
8584 view.update(cx, |view, cx| view.selections.display_ranges(cx)),
8585 &[
8586 DisplayPoint::new(0, 23)..DisplayPoint::new(0, 27),
8587 DisplayPoint::new(2, 35)..DisplayPoint::new(2, 7),
8588 DisplayPoint::new(3, 15)..DisplayPoint::new(3, 21),
8589 ]
8590 );
8591
8592 view.update(cx, |view, cx| {
8593 view.select_smaller_syntax_node(&SelectSmallerSyntaxNode, cx);
8594 });
8595 assert_eq!(
8596 view.update(cx, |view, cx| view.selections.display_ranges(cx)),
8597 &[
8598 DisplayPoint::new(0, 25)..DisplayPoint::new(0, 25),
8599 DisplayPoint::new(2, 24)..DisplayPoint::new(2, 12),
8600 DisplayPoint::new(3, 18)..DisplayPoint::new(3, 18),
8601 ]
8602 );
8603
8604 // Trying to shrink the selected syntax node one more time has no effect.
8605 view.update(cx, |view, cx| {
8606 view.select_smaller_syntax_node(&SelectSmallerSyntaxNode, cx);
8607 });
8608 assert_eq!(
8609 view.update(cx, |view, cx| view.selections.display_ranges(cx)),
8610 &[
8611 DisplayPoint::new(0, 25)..DisplayPoint::new(0, 25),
8612 DisplayPoint::new(2, 24)..DisplayPoint::new(2, 12),
8613 DisplayPoint::new(3, 18)..DisplayPoint::new(3, 18),
8614 ]
8615 );
8616
8617 // Ensure that we keep expanding the selection if the larger selection starts or ends within
8618 // a fold.
8619 view.update(cx, |view, cx| {
8620 view.fold_ranges(
8621 vec![
8622 Point::new(0, 21)..Point::new(0, 24),
8623 Point::new(3, 20)..Point::new(3, 22),
8624 ],
8625 cx,
8626 );
8627 view.select_larger_syntax_node(&SelectLargerSyntaxNode, cx);
8628 });
8629 assert_eq!(
8630 view.update(cx, |view, cx| view.selections.display_ranges(cx)),
8631 &[
8632 DisplayPoint::new(0, 16)..DisplayPoint::new(0, 28),
8633 DisplayPoint::new(2, 35)..DisplayPoint::new(2, 7),
8634 DisplayPoint::new(3, 4)..DisplayPoint::new(3, 23),
8635 ]
8636 );
8637 }
8638
8639 #[gpui::test]
8640 async fn test_autoindent_selections(cx: &mut gpui::TestAppContext) {
8641 cx.update(|cx| cx.set_global(Settings::test(cx)));
8642 let language = Arc::new(
8643 Language::new(
8644 LanguageConfig {
8645 brackets: vec![
8646 BracketPair {
8647 start: "{".to_string(),
8648 end: "}".to_string(),
8649 close: false,
8650 newline: true,
8651 },
8652 BracketPair {
8653 start: "(".to_string(),
8654 end: ")".to_string(),
8655 close: false,
8656 newline: true,
8657 },
8658 ],
8659 ..Default::default()
8660 },
8661 Some(tree_sitter_rust::language()),
8662 )
8663 .with_indents_query(
8664 r#"
8665 (_ "(" ")" @end) @indent
8666 (_ "{" "}" @end) @indent
8667 "#,
8668 )
8669 .unwrap(),
8670 );
8671
8672 let text = "fn a() {}";
8673
8674 let buffer = cx.add_model(|cx| Buffer::new(0, text, cx).with_language(language, cx));
8675 let buffer = cx.add_model(|cx| MultiBuffer::singleton(buffer, cx));
8676 let (_, editor) = cx.add_window(|cx| build_editor(buffer, cx));
8677 editor
8678 .condition(&cx, |editor, cx| !editor.buffer.read(cx).is_parsing(cx))
8679 .await;
8680
8681 editor.update(cx, |editor, cx| {
8682 editor.change_selections(None, cx, |s| s.select_ranges([5..5, 8..8, 9..9]));
8683 editor.newline(&Newline, cx);
8684 assert_eq!(editor.text(cx), "fn a(\n \n) {\n \n}\n");
8685 assert_eq!(
8686 editor.selections.ranges(cx),
8687 &[
8688 Point::new(1, 4)..Point::new(1, 4),
8689 Point::new(3, 4)..Point::new(3, 4),
8690 Point::new(5, 0)..Point::new(5, 0)
8691 ]
8692 );
8693 });
8694 }
8695
8696 #[gpui::test]
8697 async fn test_autoclose_pairs(cx: &mut gpui::TestAppContext) {
8698 cx.update(|cx| cx.set_global(Settings::test(cx)));
8699 let language = Arc::new(Language::new(
8700 LanguageConfig {
8701 brackets: vec![
8702 BracketPair {
8703 start: "{".to_string(),
8704 end: "}".to_string(),
8705 close: true,
8706 newline: true,
8707 },
8708 BracketPair {
8709 start: "/*".to_string(),
8710 end: " */".to_string(),
8711 close: true,
8712 newline: true,
8713 },
8714 ],
8715 autoclose_before: "})]".to_string(),
8716 ..Default::default()
8717 },
8718 Some(tree_sitter_rust::language()),
8719 ));
8720
8721 let text = r#"
8722 a
8723
8724 /
8725
8726 "#
8727 .unindent();
8728
8729 let buffer = cx.add_model(|cx| Buffer::new(0, text, cx).with_language(language, cx));
8730 let buffer = cx.add_model(|cx| MultiBuffer::singleton(buffer, cx));
8731 let (_, view) = cx.add_window(|cx| build_editor(buffer, cx));
8732 view.condition(&cx, |view, cx| !view.buffer.read(cx).is_parsing(cx))
8733 .await;
8734
8735 view.update(cx, |view, cx| {
8736 view.change_selections(None, cx, |s| {
8737 s.select_display_ranges([
8738 DisplayPoint::new(0, 0)..DisplayPoint::new(0, 1),
8739 DisplayPoint::new(1, 0)..DisplayPoint::new(1, 0),
8740 ])
8741 });
8742
8743 view.handle_input(&Input("{".to_string()), cx);
8744 view.handle_input(&Input("{".to_string()), cx);
8745 view.handle_input(&Input("{".to_string()), cx);
8746 assert_eq!(
8747 view.text(cx),
8748 "
8749 {{{}}}
8750 {{{}}}
8751 /
8752
8753 "
8754 .unindent()
8755 );
8756
8757 view.move_right(&MoveRight, cx);
8758 view.handle_input(&Input("}".to_string()), cx);
8759 view.handle_input(&Input("}".to_string()), cx);
8760 view.handle_input(&Input("}".to_string()), cx);
8761 assert_eq!(
8762 view.text(cx),
8763 "
8764 {{{}}}}
8765 {{{}}}}
8766 /
8767
8768 "
8769 .unindent()
8770 );
8771
8772 view.undo(&Undo, cx);
8773 view.handle_input(&Input("/".to_string()), cx);
8774 view.handle_input(&Input("*".to_string()), cx);
8775 assert_eq!(
8776 view.text(cx),
8777 "
8778 /* */
8779 /* */
8780 /
8781
8782 "
8783 .unindent()
8784 );
8785
8786 view.undo(&Undo, cx);
8787 view.change_selections(None, cx, |s| {
8788 s.select_display_ranges([
8789 DisplayPoint::new(2, 1)..DisplayPoint::new(2, 1),
8790 DisplayPoint::new(3, 0)..DisplayPoint::new(3, 0),
8791 ])
8792 });
8793 view.handle_input(&Input("*".to_string()), cx);
8794 assert_eq!(
8795 view.text(cx),
8796 "
8797 a
8798
8799 /*
8800 *
8801 "
8802 .unindent()
8803 );
8804
8805 // Don't autoclose if the next character isn't whitespace and isn't
8806 // listed in the language's "autoclose_before" section.
8807 view.finalize_last_transaction(cx);
8808 view.change_selections(None, cx, |s| {
8809 s.select_display_ranges([DisplayPoint::new(0, 0)..DisplayPoint::new(0, 0)])
8810 });
8811 view.handle_input(&Input("{".to_string()), cx);
8812 assert_eq!(
8813 view.text(cx),
8814 "
8815 {a
8816
8817 /*
8818 *
8819 "
8820 .unindent()
8821 );
8822
8823 view.undo(&Undo, cx);
8824 view.change_selections(None, cx, |s| {
8825 s.select_display_ranges([DisplayPoint::new(0, 0)..DisplayPoint::new(0, 1)])
8826 });
8827 view.handle_input(&Input("{".to_string()), cx);
8828 assert_eq!(
8829 view.text(cx),
8830 "
8831 {a}
8832
8833 /*
8834 *
8835 "
8836 .unindent()
8837 );
8838 assert_eq!(
8839 view.selections.display_ranges(cx),
8840 [DisplayPoint::new(0, 1)..DisplayPoint::new(0, 2)]
8841 );
8842 });
8843 }
8844
8845 #[gpui::test]
8846 async fn test_snippets(cx: &mut gpui::TestAppContext) {
8847 cx.update(|cx| cx.set_global(Settings::test(cx)));
8848
8849 let (text, insertion_ranges) = marked_text_ranges(indoc! {"
8850 a.| b
8851 a.| b
8852 a.| b"});
8853 let buffer = cx.update(|cx| MultiBuffer::build_simple(&text, cx));
8854 let (_, editor) = cx.add_window(|cx| build_editor(buffer, cx));
8855
8856 editor.update(cx, |editor, cx| {
8857 let snippet = Snippet::parse("f(${1:one}, ${2:two}, ${1:three})$0").unwrap();
8858
8859 editor
8860 .insert_snippet(&insertion_ranges, snippet, cx)
8861 .unwrap();
8862
8863 fn assert(editor: &mut Editor, cx: &mut ViewContext<Editor>, marked_text_ranges: &str) {
8864 let range_markers = ('<', '>');
8865 let (expected_text, mut selection_ranges_lookup) =
8866 marked_text_ranges_by(marked_text_ranges, vec![range_markers.clone().into()]);
8867 let selection_ranges = selection_ranges_lookup
8868 .remove(&range_markers.into())
8869 .unwrap();
8870 assert_eq!(editor.text(cx), expected_text);
8871 assert_eq!(editor.selections.ranges::<usize>(cx), selection_ranges);
8872 }
8873 assert(
8874 editor,
8875 cx,
8876 indoc! {"
8877 a.f(<one>, two, <three>) b
8878 a.f(<one>, two, <three>) b
8879 a.f(<one>, two, <three>) b"},
8880 );
8881
8882 // Can't move earlier than the first tab stop
8883 assert!(!editor.move_to_prev_snippet_tabstop(cx));
8884 assert(
8885 editor,
8886 cx,
8887 indoc! {"
8888 a.f(<one>, two, <three>) b
8889 a.f(<one>, two, <three>) b
8890 a.f(<one>, two, <three>) b"},
8891 );
8892
8893 assert!(editor.move_to_next_snippet_tabstop(cx));
8894 assert(
8895 editor,
8896 cx,
8897 indoc! {"
8898 a.f(one, <two>, three) b
8899 a.f(one, <two>, three) b
8900 a.f(one, <two>, three) b"},
8901 );
8902
8903 editor.move_to_prev_snippet_tabstop(cx);
8904 assert(
8905 editor,
8906 cx,
8907 indoc! {"
8908 a.f(<one>, two, <three>) b
8909 a.f(<one>, two, <three>) b
8910 a.f(<one>, two, <three>) b"},
8911 );
8912
8913 assert!(editor.move_to_next_snippet_tabstop(cx));
8914 assert(
8915 editor,
8916 cx,
8917 indoc! {"
8918 a.f(one, <two>, three) b
8919 a.f(one, <two>, three) b
8920 a.f(one, <two>, three) b"},
8921 );
8922 assert!(editor.move_to_next_snippet_tabstop(cx));
8923 assert(
8924 editor,
8925 cx,
8926 indoc! {"
8927 a.f(one, two, three)<> b
8928 a.f(one, two, three)<> b
8929 a.f(one, two, three)<> b"},
8930 );
8931
8932 // As soon as the last tab stop is reached, snippet state is gone
8933 editor.move_to_prev_snippet_tabstop(cx);
8934 assert(
8935 editor,
8936 cx,
8937 indoc! {"
8938 a.f(one, two, three)<> b
8939 a.f(one, two, three)<> b
8940 a.f(one, two, three)<> b"},
8941 );
8942 });
8943 }
8944
8945 #[gpui::test]
8946 async fn test_document_format_during_save(cx: &mut gpui::TestAppContext) {
8947 cx.foreground().forbid_parking();
8948
8949 let mut language = Language::new(
8950 LanguageConfig {
8951 name: "Rust".into(),
8952 path_suffixes: vec!["rs".to_string()],
8953 ..Default::default()
8954 },
8955 Some(tree_sitter_rust::language()),
8956 );
8957 let mut fake_servers = language.set_fake_lsp_adapter(FakeLspAdapter {
8958 capabilities: lsp::ServerCapabilities {
8959 document_formatting_provider: Some(lsp::OneOf::Left(true)),
8960 ..Default::default()
8961 },
8962 ..Default::default()
8963 });
8964
8965 let fs = FakeFs::new(cx.background().clone());
8966 fs.insert_file("/file.rs", Default::default()).await;
8967
8968 let project = Project::test(fs, ["/file.rs".as_ref()], cx).await;
8969 project.update(cx, |project, _| project.languages().add(Arc::new(language)));
8970 let buffer = project
8971 .update(cx, |project, cx| project.open_local_buffer("/file.rs", cx))
8972 .await
8973 .unwrap();
8974
8975 cx.foreground().start_waiting();
8976 let fake_server = fake_servers.next().await.unwrap();
8977
8978 let buffer = cx.add_model(|cx| MultiBuffer::singleton(buffer, cx));
8979 let (_, editor) = cx.add_window(|cx| build_editor(buffer, cx));
8980 editor.update(cx, |editor, cx| editor.set_text("one\ntwo\nthree\n", cx));
8981 assert!(cx.read(|cx| editor.is_dirty(cx)));
8982
8983 let save = cx.update(|cx| editor.save(project.clone(), cx));
8984 fake_server
8985 .handle_request::<lsp::request::Formatting, _, _>(move |params, _| async move {
8986 assert_eq!(
8987 params.text_document.uri,
8988 lsp::Url::from_file_path("/file.rs").unwrap()
8989 );
8990 assert_eq!(params.options.tab_size, 4);
8991 Ok(Some(vec![lsp::TextEdit::new(
8992 lsp::Range::new(lsp::Position::new(0, 3), lsp::Position::new(1, 0)),
8993 ", ".to_string(),
8994 )]))
8995 })
8996 .next()
8997 .await;
8998 cx.foreground().start_waiting();
8999 save.await.unwrap();
9000 assert_eq!(
9001 editor.read_with(cx, |editor, cx| editor.text(cx)),
9002 "one, two\nthree\n"
9003 );
9004 assert!(!cx.read(|cx| editor.is_dirty(cx)));
9005
9006 editor.update(cx, |editor, cx| editor.set_text("one\ntwo\nthree\n", cx));
9007 assert!(cx.read(|cx| editor.is_dirty(cx)));
9008
9009 // Ensure we can still save even if formatting hangs.
9010 fake_server.handle_request::<lsp::request::Formatting, _, _>(move |params, _| async move {
9011 assert_eq!(
9012 params.text_document.uri,
9013 lsp::Url::from_file_path("/file.rs").unwrap()
9014 );
9015 futures::future::pending::<()>().await;
9016 unreachable!()
9017 });
9018 let save = cx.update(|cx| editor.save(project.clone(), cx));
9019 cx.foreground().advance_clock(items::FORMAT_TIMEOUT);
9020 cx.foreground().start_waiting();
9021 save.await.unwrap();
9022 assert_eq!(
9023 editor.read_with(cx, |editor, cx| editor.text(cx)),
9024 "one\ntwo\nthree\n"
9025 );
9026 assert!(!cx.read(|cx| editor.is_dirty(cx)));
9027
9028 // Set rust language override and assert overriden tabsize is sent to language server
9029 cx.update(|cx| {
9030 cx.update_global::<Settings, _, _>(|settings, _| {
9031 settings.language_overrides.insert(
9032 "Rust".into(),
9033 LanguageOverride {
9034 tab_size: Some(8),
9035 ..Default::default()
9036 },
9037 );
9038 })
9039 });
9040
9041 let save = cx.update(|cx| editor.save(project.clone(), cx));
9042 fake_server
9043 .handle_request::<lsp::request::Formatting, _, _>(move |params, _| async move {
9044 assert_eq!(
9045 params.text_document.uri,
9046 lsp::Url::from_file_path("/file.rs").unwrap()
9047 );
9048 assert_eq!(params.options.tab_size, 8);
9049 Ok(Some(vec![]))
9050 })
9051 .next()
9052 .await;
9053 cx.foreground().start_waiting();
9054 save.await.unwrap();
9055 }
9056
9057 #[gpui::test]
9058 async fn test_range_format_during_save(cx: &mut gpui::TestAppContext) {
9059 cx.foreground().forbid_parking();
9060
9061 let mut language = Language::new(
9062 LanguageConfig {
9063 name: "Rust".into(),
9064 path_suffixes: vec!["rs".to_string()],
9065 ..Default::default()
9066 },
9067 Some(tree_sitter_rust::language()),
9068 );
9069 let mut fake_servers = language.set_fake_lsp_adapter(FakeLspAdapter {
9070 capabilities: lsp::ServerCapabilities {
9071 document_range_formatting_provider: Some(lsp::OneOf::Left(true)),
9072 ..Default::default()
9073 },
9074 ..Default::default()
9075 });
9076
9077 let fs = FakeFs::new(cx.background().clone());
9078 fs.insert_file("/file.rs", Default::default()).await;
9079
9080 let project = Project::test(fs, ["/file.rs".as_ref()], cx).await;
9081 project.update(cx, |project, _| project.languages().add(Arc::new(language)));
9082 let buffer = project
9083 .update(cx, |project, cx| project.open_local_buffer("/file.rs", cx))
9084 .await
9085 .unwrap();
9086
9087 cx.foreground().start_waiting();
9088 let fake_server = fake_servers.next().await.unwrap();
9089
9090 let buffer = cx.add_model(|cx| MultiBuffer::singleton(buffer, cx));
9091 let (_, editor) = cx.add_window(|cx| build_editor(buffer, cx));
9092 editor.update(cx, |editor, cx| editor.set_text("one\ntwo\nthree\n", cx));
9093 assert!(cx.read(|cx| editor.is_dirty(cx)));
9094
9095 let save = cx.update(|cx| editor.save(project.clone(), cx));
9096 fake_server
9097 .handle_request::<lsp::request::RangeFormatting, _, _>(move |params, _| async move {
9098 assert_eq!(
9099 params.text_document.uri,
9100 lsp::Url::from_file_path("/file.rs").unwrap()
9101 );
9102 assert_eq!(params.options.tab_size, 4);
9103 Ok(Some(vec![lsp::TextEdit::new(
9104 lsp::Range::new(lsp::Position::new(0, 3), lsp::Position::new(1, 0)),
9105 ", ".to_string(),
9106 )]))
9107 })
9108 .next()
9109 .await;
9110 cx.foreground().start_waiting();
9111 save.await.unwrap();
9112 assert_eq!(
9113 editor.read_with(cx, |editor, cx| editor.text(cx)),
9114 "one, two\nthree\n"
9115 );
9116 assert!(!cx.read(|cx| editor.is_dirty(cx)));
9117
9118 editor.update(cx, |editor, cx| editor.set_text("one\ntwo\nthree\n", cx));
9119 assert!(cx.read(|cx| editor.is_dirty(cx)));
9120
9121 // Ensure we can still save even if formatting hangs.
9122 fake_server.handle_request::<lsp::request::RangeFormatting, _, _>(
9123 move |params, _| async move {
9124 assert_eq!(
9125 params.text_document.uri,
9126 lsp::Url::from_file_path("/file.rs").unwrap()
9127 );
9128 futures::future::pending::<()>().await;
9129 unreachable!()
9130 },
9131 );
9132 let save = cx.update(|cx| editor.save(project.clone(), cx));
9133 cx.foreground().advance_clock(items::FORMAT_TIMEOUT);
9134 cx.foreground().start_waiting();
9135 save.await.unwrap();
9136 assert_eq!(
9137 editor.read_with(cx, |editor, cx| editor.text(cx)),
9138 "one\ntwo\nthree\n"
9139 );
9140 assert!(!cx.read(|cx| editor.is_dirty(cx)));
9141
9142 // Set rust language override and assert overriden tabsize is sent to language server
9143 cx.update(|cx| {
9144 cx.update_global::<Settings, _, _>(|settings, _| {
9145 settings.language_overrides.insert(
9146 "Rust".into(),
9147 LanguageOverride {
9148 tab_size: Some(8),
9149 ..Default::default()
9150 },
9151 );
9152 })
9153 });
9154
9155 let save = cx.update(|cx| editor.save(project.clone(), cx));
9156 fake_server
9157 .handle_request::<lsp::request::RangeFormatting, _, _>(move |params, _| async move {
9158 assert_eq!(
9159 params.text_document.uri,
9160 lsp::Url::from_file_path("/file.rs").unwrap()
9161 );
9162 assert_eq!(params.options.tab_size, 8);
9163 Ok(Some(vec![]))
9164 })
9165 .next()
9166 .await;
9167 cx.foreground().start_waiting();
9168 save.await.unwrap();
9169 }
9170
9171 #[gpui::test]
9172 async fn test_completion(cx: &mut gpui::TestAppContext) {
9173 let mut language = Language::new(
9174 LanguageConfig {
9175 name: "Rust".into(),
9176 path_suffixes: vec!["rs".to_string()],
9177 ..Default::default()
9178 },
9179 Some(tree_sitter_rust::language()),
9180 );
9181 let mut fake_servers = language.set_fake_lsp_adapter(FakeLspAdapter {
9182 capabilities: lsp::ServerCapabilities {
9183 completion_provider: Some(lsp::CompletionOptions {
9184 trigger_characters: Some(vec![".".to_string(), ":".to_string()]),
9185 ..Default::default()
9186 }),
9187 ..Default::default()
9188 },
9189 ..Default::default()
9190 });
9191
9192 let text = "
9193 one
9194 two
9195 three
9196 "
9197 .unindent();
9198
9199 let fs = FakeFs::new(cx.background().clone());
9200 fs.insert_file("/file.rs", text).await;
9201
9202 let project = Project::test(fs, ["/file.rs".as_ref()], cx).await;
9203 project.update(cx, |project, _| project.languages().add(Arc::new(language)));
9204 let buffer = project
9205 .update(cx, |project, cx| project.open_local_buffer("/file.rs", cx))
9206 .await
9207 .unwrap();
9208 let mut fake_server = fake_servers.next().await.unwrap();
9209
9210 let buffer = cx.add_model(|cx| MultiBuffer::singleton(buffer, cx));
9211 let (_, editor) = cx.add_window(|cx| build_editor(buffer, cx));
9212
9213 editor.update(cx, |editor, cx| {
9214 editor.project = Some(project);
9215 editor.change_selections(None, cx, |s| {
9216 s.select_ranges([Point::new(0, 3)..Point::new(0, 3)])
9217 });
9218 editor.handle_input(&Input(".".to_string()), cx);
9219 });
9220
9221 handle_completion_request(
9222 &mut fake_server,
9223 "/file.rs",
9224 Point::new(0, 4),
9225 vec![
9226 (Point::new(0, 4)..Point::new(0, 4), "first_completion"),
9227 (Point::new(0, 4)..Point::new(0, 4), "second_completion"),
9228 ],
9229 )
9230 .await;
9231 editor
9232 .condition(&cx, |editor, _| editor.context_menu_visible())
9233 .await;
9234
9235 let apply_additional_edits = editor.update(cx, |editor, cx| {
9236 editor.move_down(&MoveDown, cx);
9237 let apply_additional_edits = editor
9238 .confirm_completion(&ConfirmCompletion::default(), cx)
9239 .unwrap();
9240 assert_eq!(
9241 editor.text(cx),
9242 "
9243 one.second_completion
9244 two
9245 three
9246 "
9247 .unindent()
9248 );
9249 apply_additional_edits
9250 });
9251
9252 handle_resolve_completion_request(
9253 &mut fake_server,
9254 Some((Point::new(2, 5)..Point::new(2, 5), "\nadditional edit")),
9255 )
9256 .await;
9257 apply_additional_edits.await.unwrap();
9258 assert_eq!(
9259 editor.read_with(cx, |editor, cx| editor.text(cx)),
9260 "
9261 one.second_completion
9262 two
9263 three
9264 additional edit
9265 "
9266 .unindent()
9267 );
9268
9269 editor.update(cx, |editor, cx| {
9270 editor.change_selections(None, cx, |s| {
9271 s.select_ranges([
9272 Point::new(1, 3)..Point::new(1, 3),
9273 Point::new(2, 5)..Point::new(2, 5),
9274 ])
9275 });
9276
9277 editor.handle_input(&Input(" ".to_string()), cx);
9278 assert!(editor.context_menu.is_none());
9279 editor.handle_input(&Input("s".to_string()), cx);
9280 assert!(editor.context_menu.is_none());
9281 });
9282
9283 handle_completion_request(
9284 &mut fake_server,
9285 "/file.rs",
9286 Point::new(2, 7),
9287 vec![
9288 (Point::new(2, 6)..Point::new(2, 7), "fourth_completion"),
9289 (Point::new(2, 6)..Point::new(2, 7), "fifth_completion"),
9290 (Point::new(2, 6)..Point::new(2, 7), "sixth_completion"),
9291 ],
9292 )
9293 .await;
9294 editor
9295 .condition(&cx, |editor, _| editor.context_menu_visible())
9296 .await;
9297
9298 editor.update(cx, |editor, cx| {
9299 editor.handle_input(&Input("i".to_string()), cx);
9300 });
9301
9302 handle_completion_request(
9303 &mut fake_server,
9304 "/file.rs",
9305 Point::new(2, 8),
9306 vec![
9307 (Point::new(2, 6)..Point::new(2, 8), "fourth_completion"),
9308 (Point::new(2, 6)..Point::new(2, 8), "fifth_completion"),
9309 (Point::new(2, 6)..Point::new(2, 8), "sixth_completion"),
9310 ],
9311 )
9312 .await;
9313 editor
9314 .condition(&cx, |editor, _| editor.context_menu_visible())
9315 .await;
9316
9317 let apply_additional_edits = editor.update(cx, |editor, cx| {
9318 let apply_additional_edits = editor
9319 .confirm_completion(&ConfirmCompletion::default(), cx)
9320 .unwrap();
9321 assert_eq!(
9322 editor.text(cx),
9323 "
9324 one.second_completion
9325 two sixth_completion
9326 three sixth_completion
9327 additional edit
9328 "
9329 .unindent()
9330 );
9331 apply_additional_edits
9332 });
9333 handle_resolve_completion_request(&mut fake_server, None).await;
9334 apply_additional_edits.await.unwrap();
9335
9336 async fn handle_completion_request(
9337 fake: &mut FakeLanguageServer,
9338 path: &'static str,
9339 position: Point,
9340 completions: Vec<(Range<Point>, &'static str)>,
9341 ) {
9342 fake.handle_request::<lsp::request::Completion, _, _>(move |params, _| {
9343 let completions = completions.clone();
9344 async move {
9345 assert_eq!(
9346 params.text_document_position.text_document.uri,
9347 lsp::Url::from_file_path(path).unwrap()
9348 );
9349 assert_eq!(
9350 params.text_document_position.position,
9351 lsp::Position::new(position.row, position.column)
9352 );
9353 Ok(Some(lsp::CompletionResponse::Array(
9354 completions
9355 .iter()
9356 .map(|(range, new_text)| lsp::CompletionItem {
9357 label: new_text.to_string(),
9358 text_edit: Some(lsp::CompletionTextEdit::Edit(lsp::TextEdit {
9359 range: lsp::Range::new(
9360 lsp::Position::new(range.start.row, range.start.column),
9361 lsp::Position::new(range.start.row, range.start.column),
9362 ),
9363 new_text: new_text.to_string(),
9364 })),
9365 ..Default::default()
9366 })
9367 .collect(),
9368 )))
9369 }
9370 })
9371 .next()
9372 .await;
9373 }
9374
9375 async fn handle_resolve_completion_request(
9376 fake: &mut FakeLanguageServer,
9377 edit: Option<(Range<Point>, &'static str)>,
9378 ) {
9379 fake.handle_request::<lsp::request::ResolveCompletionItem, _, _>(move |_, _| {
9380 let edit = edit.clone();
9381 async move {
9382 Ok(lsp::CompletionItem {
9383 additional_text_edits: edit.map(|(range, new_text)| {
9384 vec![lsp::TextEdit::new(
9385 lsp::Range::new(
9386 lsp::Position::new(range.start.row, range.start.column),
9387 lsp::Position::new(range.end.row, range.end.column),
9388 ),
9389 new_text.to_string(),
9390 )]
9391 }),
9392 ..Default::default()
9393 })
9394 }
9395 })
9396 .next()
9397 .await;
9398 }
9399 }
9400
9401 #[gpui::test]
9402 async fn test_hover_popover(cx: &mut gpui::TestAppContext) {
9403 let mut cx = EditorLspTestContext::new_rust(
9404 lsp::ServerCapabilities {
9405 hover_provider: Some(lsp::HoverProviderCapability::Simple(true)),
9406 ..Default::default()
9407 },
9408 cx,
9409 )
9410 .await;
9411
9412 // Basic hover delays and then pops without moving the mouse
9413 cx.set_state(indoc! {"
9414 fn |test()
9415 println!();"});
9416 let hover_point = cx.display_point(indoc! {"
9417 fn test()
9418 print|ln!();"});
9419 cx.update_editor(|editor, cx| {
9420 hover_at(
9421 editor,
9422 &HoverAt {
9423 point: Some(hover_point),
9424 },
9425 cx,
9426 )
9427 });
9428 assert!(!cx.editor(|editor, _| editor.hover_state.visible()));
9429
9430 // After delay, hover should be visible.
9431 let symbol_range = cx.lsp_range(indoc! {"
9432 fn test()
9433 [println!]();"});
9434 cx.handle_request::<lsp::request::HoverRequest, _>(move |_| {
9435 Some(lsp::Hover {
9436 contents: lsp::HoverContents::Markup(lsp::MarkupContent {
9437 kind: lsp::MarkupKind::Markdown,
9438 value: indoc! {"
9439 # Some basic docs
9440 Some test documentation"}
9441 .to_string(),
9442 }),
9443 range: Some(symbol_range),
9444 })
9445 })
9446 .await;
9447 cx.foreground()
9448 .advance_clock(Duration::from_millis(HOVER_DELAY_MILLIS + 100));
9449
9450 cx.editor(|editor, _| {
9451 assert!(editor.hover_state.visible());
9452 assert_eq!(
9453 editor.hover_state.popover.clone().unwrap().contents,
9454 vec![
9455 HoverBlock {
9456 text: "Some basic docs".to_string(),
9457 language: None
9458 },
9459 HoverBlock {
9460 text: "Some test documentation".to_string(),
9461 language: None
9462 }
9463 ]
9464 )
9465 });
9466
9467 // Mouse moved with no hover response dismisses
9468 let hover_point = cx.display_point(indoc! {"
9469 fn te|st()
9470 println!();"});
9471 cx.update_editor(|editor, cx| {
9472 hover_at(
9473 editor,
9474 &HoverAt {
9475 point: Some(hover_point),
9476 },
9477 cx,
9478 )
9479 });
9480 cx.handle_request::<lsp::request::HoverRequest, _>(move |_| None)
9481 .await;
9482 cx.foreground().run_until_parked();
9483 cx.editor(|editor, _| {
9484 assert!(!editor.hover_state.visible());
9485 });
9486 cx.foreground()
9487 .advance_clock(Duration::from_millis(HOVER_GRACE_MILLIS + 100));
9488
9489 // Hover with keyboard has no delay
9490 cx.set_state(indoc! {"
9491 f|n test()
9492 println!();"});
9493 cx.update_editor(|editor, cx| hover(editor, &hover_popover::Hover, cx));
9494 let symbol_range = cx.lsp_range(indoc! {"
9495 [fn] test()
9496 println!();"});
9497 cx.handle_request::<lsp::request::HoverRequest, _>(move |_| {
9498 Some(lsp::Hover {
9499 contents: lsp::HoverContents::Markup(lsp::MarkupContent {
9500 kind: lsp::MarkupKind::Markdown,
9501 value: indoc! {"
9502 # Some other basic docs
9503 Some other test documentation"}
9504 .to_string(),
9505 }),
9506 range: Some(symbol_range),
9507 })
9508 })
9509 .await;
9510 cx.foreground().run_until_parked();
9511 cx.editor(|editor, _| {
9512 assert!(editor.hover_state.visible());
9513 assert_eq!(
9514 editor.hover_state.popover.clone().unwrap().contents,
9515 vec![
9516 HoverBlock {
9517 text: "Some other basic docs".to_string(),
9518 language: None
9519 },
9520 HoverBlock {
9521 text: "Some other test documentation".to_string(),
9522 language: None
9523 }
9524 ]
9525 )
9526 });
9527
9528 // Open hover popover disables delay
9529 let hover_point = cx.display_point(indoc! {"
9530 fn test()
9531 print|ln!();"});
9532 cx.update_editor(|editor, cx| {
9533 hover_at(
9534 editor,
9535 &HoverAt {
9536 point: Some(hover_point),
9537 },
9538 cx,
9539 )
9540 });
9541
9542 let symbol_range = cx.lsp_range(indoc! {"
9543 fn test()
9544 [println!]();"});
9545 cx.handle_request::<lsp::request::HoverRequest, _>(move |_| {
9546 Some(lsp::Hover {
9547 contents: lsp::HoverContents::Markup(lsp::MarkupContent {
9548 kind: lsp::MarkupKind::Markdown,
9549 value: indoc! {"
9550 # Some third basic docs
9551 Some third test documentation"}
9552 .to_string(),
9553 }),
9554 range: Some(symbol_range),
9555 })
9556 })
9557 .await;
9558 cx.foreground().run_until_parked();
9559 // No delay as the popover is already visible
9560
9561 cx.editor(|editor, _| {
9562 assert!(editor.hover_state.visible());
9563 assert_eq!(
9564 editor.hover_state.popover.clone().unwrap().contents,
9565 vec![
9566 HoverBlock {
9567 text: "Some third basic docs".to_string(),
9568 language: None
9569 },
9570 HoverBlock {
9571 text: "Some third test documentation".to_string(),
9572 language: None
9573 }
9574 ]
9575 )
9576 });
9577 }
9578
9579 #[gpui::test]
9580 async fn test_toggle_comment(cx: &mut gpui::TestAppContext) {
9581 cx.update(|cx| cx.set_global(Settings::test(cx)));
9582 let language = Arc::new(Language::new(
9583 LanguageConfig {
9584 line_comment: Some("// ".to_string()),
9585 ..Default::default()
9586 },
9587 Some(tree_sitter_rust::language()),
9588 ));
9589
9590 let text = "
9591 fn a() {
9592 //b();
9593 // c();
9594 // d();
9595 }
9596 "
9597 .unindent();
9598
9599 let buffer = cx.add_model(|cx| Buffer::new(0, text, cx).with_language(language, cx));
9600 let buffer = cx.add_model(|cx| MultiBuffer::singleton(buffer, cx));
9601 let (_, view) = cx.add_window(|cx| build_editor(buffer, cx));
9602
9603 view.update(cx, |editor, cx| {
9604 // If multiple selections intersect a line, the line is only
9605 // toggled once.
9606 editor.change_selections(None, cx, |s| {
9607 s.select_display_ranges([
9608 DisplayPoint::new(1, 3)..DisplayPoint::new(2, 3),
9609 DisplayPoint::new(3, 5)..DisplayPoint::new(3, 6),
9610 ])
9611 });
9612 editor.toggle_comments(&ToggleComments, cx);
9613 assert_eq!(
9614 editor.text(cx),
9615 "
9616 fn a() {
9617 b();
9618 c();
9619 d();
9620 }
9621 "
9622 .unindent()
9623 );
9624
9625 // The comment prefix is inserted at the same column for every line
9626 // in a selection.
9627 editor.change_selections(None, cx, |s| {
9628 s.select_display_ranges([DisplayPoint::new(1, 3)..DisplayPoint::new(3, 6)])
9629 });
9630 editor.toggle_comments(&ToggleComments, cx);
9631 assert_eq!(
9632 editor.text(cx),
9633 "
9634 fn a() {
9635 // b();
9636 // c();
9637 // d();
9638 }
9639 "
9640 .unindent()
9641 );
9642
9643 // If a selection ends at the beginning of a line, that line is not toggled.
9644 editor.change_selections(None, cx, |s| {
9645 s.select_display_ranges([DisplayPoint::new(2, 0)..DisplayPoint::new(3, 0)])
9646 });
9647 editor.toggle_comments(&ToggleComments, cx);
9648 assert_eq!(
9649 editor.text(cx),
9650 "
9651 fn a() {
9652 // b();
9653 c();
9654 // d();
9655 }
9656 "
9657 .unindent()
9658 );
9659 });
9660 }
9661
9662 #[gpui::test]
9663 fn test_editing_disjoint_excerpts(cx: &mut gpui::MutableAppContext) {
9664 cx.set_global(Settings::test(cx));
9665 let buffer = cx.add_model(|cx| Buffer::new(0, sample_text(3, 4, 'a'), cx));
9666 let multibuffer = cx.add_model(|cx| {
9667 let mut multibuffer = MultiBuffer::new(0);
9668 multibuffer.push_excerpts(
9669 buffer.clone(),
9670 [
9671 ExcerptRange {
9672 context: Point::new(0, 0)..Point::new(0, 4),
9673 primary: None,
9674 },
9675 ExcerptRange {
9676 context: Point::new(1, 0)..Point::new(1, 4),
9677 primary: None,
9678 },
9679 ],
9680 cx,
9681 );
9682 multibuffer
9683 });
9684
9685 assert_eq!(multibuffer.read(cx).read(cx).text(), "aaaa\nbbbb");
9686
9687 let (_, view) = cx.add_window(Default::default(), |cx| build_editor(multibuffer, cx));
9688 view.update(cx, |view, cx| {
9689 assert_eq!(view.text(cx), "aaaa\nbbbb");
9690 view.change_selections(None, cx, |s| {
9691 s.select_ranges([
9692 Point::new(0, 0)..Point::new(0, 0),
9693 Point::new(1, 0)..Point::new(1, 0),
9694 ])
9695 });
9696
9697 view.handle_input(&Input("X".to_string()), cx);
9698 assert_eq!(view.text(cx), "Xaaaa\nXbbbb");
9699 assert_eq!(
9700 view.selections.ranges(cx),
9701 [
9702 Point::new(0, 1)..Point::new(0, 1),
9703 Point::new(1, 1)..Point::new(1, 1),
9704 ]
9705 )
9706 });
9707 }
9708
9709 #[gpui::test]
9710 fn test_editing_overlapping_excerpts(cx: &mut gpui::MutableAppContext) {
9711 cx.set_global(Settings::test(cx));
9712 let (initial_text, excerpt_ranges) = marked_text_ranges(indoc! {"
9713 [aaaa
9714 (bbbb]
9715 cccc)"});
9716 let excerpt_ranges = excerpt_ranges.into_iter().map(|context| ExcerptRange {
9717 context,
9718 primary: None,
9719 });
9720 let buffer = cx.add_model(|cx| Buffer::new(0, initial_text, cx));
9721 let multibuffer = cx.add_model(|cx| {
9722 let mut multibuffer = MultiBuffer::new(0);
9723 multibuffer.push_excerpts(buffer, excerpt_ranges, cx);
9724 multibuffer
9725 });
9726
9727 let (_, view) = cx.add_window(Default::default(), |cx| build_editor(multibuffer, cx));
9728 view.update(cx, |view, cx| {
9729 let (expected_text, selection_ranges) = marked_text_ranges(indoc! {"
9730 aaaa
9731 b|bbb
9732 b|bb|b
9733 cccc"});
9734 assert_eq!(view.text(cx), expected_text);
9735 view.change_selections(None, cx, |s| s.select_ranges(selection_ranges));
9736
9737 view.handle_input(&Input("X".to_string()), cx);
9738
9739 let (expected_text, expected_selections) = marked_text_ranges(indoc! {"
9740 aaaa
9741 bX|bbXb
9742 bX|bbX|b
9743 cccc"});
9744 assert_eq!(view.text(cx), expected_text);
9745 assert_eq!(view.selections.ranges(cx), expected_selections);
9746
9747 view.newline(&Newline, cx);
9748 let (expected_text, expected_selections) = marked_text_ranges(indoc! {"
9749 aaaa
9750 bX
9751 |bbX
9752 b
9753 bX
9754 |bbX
9755 |b
9756 cccc"});
9757 assert_eq!(view.text(cx), expected_text);
9758 assert_eq!(view.selections.ranges(cx), expected_selections);
9759 });
9760 }
9761
9762 #[gpui::test]
9763 fn test_refresh_selections(cx: &mut gpui::MutableAppContext) {
9764 cx.set_global(Settings::test(cx));
9765 let buffer = cx.add_model(|cx| Buffer::new(0, sample_text(3, 4, 'a'), cx));
9766 let mut excerpt1_id = None;
9767 let multibuffer = cx.add_model(|cx| {
9768 let mut multibuffer = MultiBuffer::new(0);
9769 excerpt1_id = multibuffer
9770 .push_excerpts(
9771 buffer.clone(),
9772 [
9773 ExcerptRange {
9774 context: Point::new(0, 0)..Point::new(1, 4),
9775 primary: None,
9776 },
9777 ExcerptRange {
9778 context: Point::new(1, 0)..Point::new(2, 4),
9779 primary: None,
9780 },
9781 ],
9782 cx,
9783 )
9784 .into_iter()
9785 .next();
9786 multibuffer
9787 });
9788 assert_eq!(
9789 multibuffer.read(cx).read(cx).text(),
9790 "aaaa\nbbbb\nbbbb\ncccc"
9791 );
9792 let (_, editor) = cx.add_window(Default::default(), |cx| {
9793 let mut editor = build_editor(multibuffer.clone(), cx);
9794 let snapshot = editor.snapshot(cx);
9795 editor.change_selections(None, cx, |s| {
9796 s.select_ranges([Point::new(1, 3)..Point::new(1, 3)])
9797 });
9798 editor.begin_selection(Point::new(2, 1).to_display_point(&snapshot), true, 1, cx);
9799 assert_eq!(
9800 editor.selections.ranges(cx),
9801 [
9802 Point::new(1, 3)..Point::new(1, 3),
9803 Point::new(2, 1)..Point::new(2, 1),
9804 ]
9805 );
9806 editor
9807 });
9808
9809 // Refreshing selections is a no-op when excerpts haven't changed.
9810 editor.update(cx, |editor, cx| {
9811 editor.change_selections(None, cx, |s| {
9812 s.refresh();
9813 });
9814 assert_eq!(
9815 editor.selections.ranges(cx),
9816 [
9817 Point::new(1, 3)..Point::new(1, 3),
9818 Point::new(2, 1)..Point::new(2, 1),
9819 ]
9820 );
9821 });
9822
9823 multibuffer.update(cx, |multibuffer, cx| {
9824 multibuffer.remove_excerpts([&excerpt1_id.unwrap()], cx);
9825 });
9826 editor.update(cx, |editor, cx| {
9827 // Removing an excerpt causes the first selection to become degenerate.
9828 assert_eq!(
9829 editor.selections.ranges(cx),
9830 [
9831 Point::new(0, 0)..Point::new(0, 0),
9832 Point::new(0, 1)..Point::new(0, 1)
9833 ]
9834 );
9835
9836 // Refreshing selections will relocate the first selection to the original buffer
9837 // location.
9838 editor.change_selections(None, cx, |s| {
9839 s.refresh();
9840 });
9841 assert_eq!(
9842 editor.selections.ranges(cx),
9843 [
9844 Point::new(0, 1)..Point::new(0, 1),
9845 Point::new(0, 3)..Point::new(0, 3)
9846 ]
9847 );
9848 assert!(editor.selections.pending_anchor().is_some());
9849 });
9850 }
9851
9852 #[gpui::test]
9853 fn test_refresh_selections_while_selecting_with_mouse(cx: &mut gpui::MutableAppContext) {
9854 cx.set_global(Settings::test(cx));
9855 let buffer = cx.add_model(|cx| Buffer::new(0, sample_text(3, 4, 'a'), cx));
9856 let mut excerpt1_id = None;
9857 let multibuffer = cx.add_model(|cx| {
9858 let mut multibuffer = MultiBuffer::new(0);
9859 excerpt1_id = multibuffer
9860 .push_excerpts(
9861 buffer.clone(),
9862 [
9863 ExcerptRange {
9864 context: Point::new(0, 0)..Point::new(1, 4),
9865 primary: None,
9866 },
9867 ExcerptRange {
9868 context: Point::new(1, 0)..Point::new(2, 4),
9869 primary: None,
9870 },
9871 ],
9872 cx,
9873 )
9874 .into_iter()
9875 .next();
9876 multibuffer
9877 });
9878 assert_eq!(
9879 multibuffer.read(cx).read(cx).text(),
9880 "aaaa\nbbbb\nbbbb\ncccc"
9881 );
9882 let (_, editor) = cx.add_window(Default::default(), |cx| {
9883 let mut editor = build_editor(multibuffer.clone(), cx);
9884 let snapshot = editor.snapshot(cx);
9885 editor.begin_selection(Point::new(1, 3).to_display_point(&snapshot), false, 1, cx);
9886 assert_eq!(
9887 editor.selections.ranges(cx),
9888 [Point::new(1, 3)..Point::new(1, 3)]
9889 );
9890 editor
9891 });
9892
9893 multibuffer.update(cx, |multibuffer, cx| {
9894 multibuffer.remove_excerpts([&excerpt1_id.unwrap()], cx);
9895 });
9896 editor.update(cx, |editor, cx| {
9897 assert_eq!(
9898 editor.selections.ranges(cx),
9899 [Point::new(0, 0)..Point::new(0, 0)]
9900 );
9901
9902 // Ensure we don't panic when selections are refreshed and that the pending selection is finalized.
9903 editor.change_selections(None, cx, |s| {
9904 s.refresh();
9905 });
9906 assert_eq!(
9907 editor.selections.ranges(cx),
9908 [Point::new(0, 3)..Point::new(0, 3)]
9909 );
9910 assert!(editor.selections.pending_anchor().is_some());
9911 });
9912 }
9913
9914 #[gpui::test]
9915 async fn test_extra_newline_insertion(cx: &mut gpui::TestAppContext) {
9916 cx.update(|cx| cx.set_global(Settings::test(cx)));
9917 let language = Arc::new(Language::new(
9918 LanguageConfig {
9919 brackets: vec![
9920 BracketPair {
9921 start: "{".to_string(),
9922 end: "}".to_string(),
9923 close: true,
9924 newline: true,
9925 },
9926 BracketPair {
9927 start: "/* ".to_string(),
9928 end: " */".to_string(),
9929 close: true,
9930 newline: true,
9931 },
9932 ],
9933 ..Default::default()
9934 },
9935 Some(tree_sitter_rust::language()),
9936 ));
9937
9938 let text = concat!(
9939 "{ }\n", // Suppress rustfmt
9940 " x\n", //
9941 " /* */\n", //
9942 "x\n", //
9943 "{{} }\n", //
9944 );
9945
9946 let buffer = cx.add_model(|cx| Buffer::new(0, text, cx).with_language(language, cx));
9947 let buffer = cx.add_model(|cx| MultiBuffer::singleton(buffer, cx));
9948 let (_, view) = cx.add_window(|cx| build_editor(buffer, cx));
9949 view.condition(&cx, |view, cx| !view.buffer.read(cx).is_parsing(cx))
9950 .await;
9951
9952 view.update(cx, |view, cx| {
9953 view.change_selections(None, cx, |s| {
9954 s.select_display_ranges([
9955 DisplayPoint::new(0, 2)..DisplayPoint::new(0, 3),
9956 DisplayPoint::new(2, 5)..DisplayPoint::new(2, 5),
9957 DisplayPoint::new(4, 4)..DisplayPoint::new(4, 4),
9958 ])
9959 });
9960 view.newline(&Newline, cx);
9961
9962 assert_eq!(
9963 view.buffer().read(cx).read(cx).text(),
9964 concat!(
9965 "{ \n", // Suppress rustfmt
9966 "\n", //
9967 "}\n", //
9968 " x\n", //
9969 " /* \n", //
9970 " \n", //
9971 " */\n", //
9972 "x\n", //
9973 "{{} \n", //
9974 "}\n", //
9975 )
9976 );
9977 });
9978 }
9979
9980 #[gpui::test]
9981 fn test_highlighted_ranges(cx: &mut gpui::MutableAppContext) {
9982 let buffer = MultiBuffer::build_simple(&sample_text(16, 8, 'a'), cx);
9983
9984 cx.set_global(Settings::test(cx));
9985 let (_, editor) = cx.add_window(Default::default(), |cx| build_editor(buffer.clone(), cx));
9986
9987 editor.update(cx, |editor, cx| {
9988 struct Type1;
9989 struct Type2;
9990
9991 let buffer = buffer.read(cx).snapshot(cx);
9992
9993 let anchor_range = |range: Range<Point>| {
9994 buffer.anchor_after(range.start)..buffer.anchor_after(range.end)
9995 };
9996
9997 editor.highlight_background::<Type1>(
9998 vec![
9999 anchor_range(Point::new(2, 1)..Point::new(2, 3)),
10000 anchor_range(Point::new(4, 2)..Point::new(4, 4)),
10001 anchor_range(Point::new(6, 3)..Point::new(6, 5)),
10002 anchor_range(Point::new(8, 4)..Point::new(8, 6)),
10003 ],
10004 |_| Color::red(),
10005 cx,
10006 );
10007 editor.highlight_background::<Type2>(
10008 vec![
10009 anchor_range(Point::new(3, 2)..Point::new(3, 5)),
10010 anchor_range(Point::new(5, 3)..Point::new(5, 6)),
10011 anchor_range(Point::new(7, 4)..Point::new(7, 7)),
10012 anchor_range(Point::new(9, 5)..Point::new(9, 8)),
10013 ],
10014 |_| Color::green(),
10015 cx,
10016 );
10017
10018 let snapshot = editor.snapshot(cx);
10019 let mut highlighted_ranges = editor.background_highlights_in_range(
10020 anchor_range(Point::new(3, 4)..Point::new(7, 4)),
10021 &snapshot,
10022 cx.global::<Settings>().theme.as_ref(),
10023 );
10024 // Enforce a consistent ordering based on color without relying on the ordering of the
10025 // highlight's `TypeId` which is non-deterministic.
10026 highlighted_ranges.sort_unstable_by_key(|(_, color)| *color);
10027 assert_eq!(
10028 highlighted_ranges,
10029 &[
10030 (
10031 DisplayPoint::new(3, 2)..DisplayPoint::new(3, 5),
10032 Color::green(),
10033 ),
10034 (
10035 DisplayPoint::new(5, 3)..DisplayPoint::new(5, 6),
10036 Color::green(),
10037 ),
10038 (
10039 DisplayPoint::new(4, 2)..DisplayPoint::new(4, 4),
10040 Color::red(),
10041 ),
10042 (
10043 DisplayPoint::new(6, 3)..DisplayPoint::new(6, 5),
10044 Color::red(),
10045 ),
10046 ]
10047 );
10048 assert_eq!(
10049 editor.background_highlights_in_range(
10050 anchor_range(Point::new(5, 6)..Point::new(6, 4)),
10051 &snapshot,
10052 cx.global::<Settings>().theme.as_ref(),
10053 ),
10054 &[(
10055 DisplayPoint::new(6, 3)..DisplayPoint::new(6, 5),
10056 Color::red(),
10057 )]
10058 );
10059 });
10060 }
10061
10062 #[gpui::test]
10063 fn test_following(cx: &mut gpui::MutableAppContext) {
10064 let buffer = MultiBuffer::build_simple(&sample_text(16, 8, 'a'), cx);
10065
10066 cx.set_global(Settings::test(cx));
10067
10068 let (_, leader) = cx.add_window(Default::default(), |cx| build_editor(buffer.clone(), cx));
10069 let (_, follower) = cx.add_window(
10070 WindowOptions {
10071 bounds: WindowBounds::Fixed(RectF::from_points(vec2f(0., 0.), vec2f(10., 80.))),
10072 ..Default::default()
10073 },
10074 |cx| build_editor(buffer.clone(), cx),
10075 );
10076
10077 let pending_update = Rc::new(RefCell::new(None));
10078 follower.update(cx, {
10079 let update = pending_update.clone();
10080 |_, cx| {
10081 cx.subscribe(&leader, move |_, leader, event, cx| {
10082 leader
10083 .read(cx)
10084 .add_event_to_update_proto(event, &mut *update.borrow_mut(), cx);
10085 })
10086 .detach();
10087 }
10088 });
10089
10090 // Update the selections only
10091 leader.update(cx, |leader, cx| {
10092 leader.change_selections(None, cx, |s| s.select_ranges([1..1]));
10093 });
10094 follower.update(cx, |follower, cx| {
10095 follower
10096 .apply_update_proto(pending_update.borrow_mut().take().unwrap(), cx)
10097 .unwrap();
10098 });
10099 assert_eq!(follower.read(cx).selections.ranges(cx), vec![1..1]);
10100
10101 // Update the scroll position only
10102 leader.update(cx, |leader, cx| {
10103 leader.set_scroll_position(vec2f(1.5, 3.5), cx);
10104 });
10105 follower.update(cx, |follower, cx| {
10106 follower
10107 .apply_update_proto(pending_update.borrow_mut().take().unwrap(), cx)
10108 .unwrap();
10109 });
10110 assert_eq!(
10111 follower.update(cx, |follower, cx| follower.scroll_position(cx)),
10112 vec2f(1.5, 3.5)
10113 );
10114
10115 // Update the selections and scroll position
10116 leader.update(cx, |leader, cx| {
10117 leader.change_selections(None, cx, |s| s.select_ranges([0..0]));
10118 leader.request_autoscroll(Autoscroll::Newest, cx);
10119 leader.set_scroll_position(vec2f(1.5, 3.5), cx);
10120 });
10121 follower.update(cx, |follower, cx| {
10122 let initial_scroll_position = follower.scroll_position(cx);
10123 follower
10124 .apply_update_proto(pending_update.borrow_mut().take().unwrap(), cx)
10125 .unwrap();
10126 assert_eq!(follower.scroll_position(cx), initial_scroll_position);
10127 assert!(follower.autoscroll_request.is_some());
10128 });
10129 assert_eq!(follower.read(cx).selections.ranges(cx), vec![0..0]);
10130
10131 // Creating a pending selection that precedes another selection
10132 leader.update(cx, |leader, cx| {
10133 leader.change_selections(None, cx, |s| s.select_ranges([1..1]));
10134 leader.begin_selection(DisplayPoint::new(0, 0), true, 1, cx);
10135 });
10136 follower.update(cx, |follower, cx| {
10137 follower
10138 .apply_update_proto(pending_update.borrow_mut().take().unwrap(), cx)
10139 .unwrap();
10140 });
10141 assert_eq!(follower.read(cx).selections.ranges(cx), vec![0..0, 1..1]);
10142
10143 // Extend the pending selection so that it surrounds another selection
10144 leader.update(cx, |leader, cx| {
10145 leader.extend_selection(DisplayPoint::new(0, 2), 1, cx);
10146 });
10147 follower.update(cx, |follower, cx| {
10148 follower
10149 .apply_update_proto(pending_update.borrow_mut().take().unwrap(), cx)
10150 .unwrap();
10151 });
10152 assert_eq!(follower.read(cx).selections.ranges(cx), vec![0..2]);
10153 }
10154
10155 #[test]
10156 fn test_combine_syntax_and_fuzzy_match_highlights() {
10157 let string = "abcdefghijklmnop";
10158 let syntax_ranges = [
10159 (
10160 0..3,
10161 HighlightStyle {
10162 color: Some(Color::red()),
10163 ..Default::default()
10164 },
10165 ),
10166 (
10167 4..8,
10168 HighlightStyle {
10169 color: Some(Color::green()),
10170 ..Default::default()
10171 },
10172 ),
10173 ];
10174 let match_indices = [4, 6, 7, 8];
10175 assert_eq!(
10176 combine_syntax_and_fuzzy_match_highlights(
10177 &string,
10178 Default::default(),
10179 syntax_ranges.into_iter(),
10180 &match_indices,
10181 ),
10182 &[
10183 (
10184 0..3,
10185 HighlightStyle {
10186 color: Some(Color::red()),
10187 ..Default::default()
10188 },
10189 ),
10190 (
10191 4..5,
10192 HighlightStyle {
10193 color: Some(Color::green()),
10194 weight: Some(fonts::Weight::BOLD),
10195 ..Default::default()
10196 },
10197 ),
10198 (
10199 5..6,
10200 HighlightStyle {
10201 color: Some(Color::green()),
10202 ..Default::default()
10203 },
10204 ),
10205 (
10206 6..8,
10207 HighlightStyle {
10208 color: Some(Color::green()),
10209 weight: Some(fonts::Weight::BOLD),
10210 ..Default::default()
10211 },
10212 ),
10213 (
10214 8..9,
10215 HighlightStyle {
10216 weight: Some(fonts::Weight::BOLD),
10217 ..Default::default()
10218 },
10219 ),
10220 ]
10221 );
10222 }
10223
10224 fn empty_range(row: usize, column: usize) -> Range<DisplayPoint> {
10225 let point = DisplayPoint::new(row as u32, column as u32);
10226 point..point
10227 }
10228
10229 fn assert_selection_ranges(
10230 marked_text: &str,
10231 selection_marker_pairs: Vec<(char, char)>,
10232 view: &mut Editor,
10233 cx: &mut ViewContext<Editor>,
10234 ) {
10235 let snapshot = view.snapshot(cx).display_snapshot;
10236 let mut marker_chars = Vec::new();
10237 for (start, end) in selection_marker_pairs.iter() {
10238 marker_chars.push(*start);
10239 marker_chars.push(*end);
10240 }
10241 let (_, markers) = marked_text_by(marked_text, marker_chars);
10242 let asserted_ranges: Vec<Range<DisplayPoint>> = selection_marker_pairs
10243 .iter()
10244 .map(|(start, end)| {
10245 let start = markers.get(start).unwrap()[0].to_display_point(&snapshot);
10246 let end = markers.get(end).unwrap()[0].to_display_point(&snapshot);
10247 start..end
10248 })
10249 .collect();
10250 assert_eq!(
10251 view.selections.display_ranges(cx),
10252 &asserted_ranges[..],
10253 "Assert selections are {}",
10254 marked_text
10255 );
10256 }
10257}
10258
10259trait RangeExt<T> {
10260 fn sorted(&self) -> Range<T>;
10261 fn to_inclusive(&self) -> RangeInclusive<T>;
10262}
10263
10264impl<T: Ord + Clone> RangeExt<T> for Range<T> {
10265 fn sorted(&self) -> Self {
10266 cmp::min(&self.start, &self.end).clone()..cmp::max(&self.start, &self.end).clone()
10267 }
10268
10269 fn to_inclusive(&self) -> RangeInclusive<T> {
10270 self.start.clone()..=self.end.clone()
10271 }
10272}