1pub mod display_map;
2mod element;
3pub mod items;
4pub mod movement;
5mod multi_buffer;
6
7#[cfg(test)]
8mod test;
9
10use aho_corasick::AhoCorasick;
11use anyhow::Result;
12use clock::ReplicaId;
13use collections::{BTreeMap, Bound, HashMap, HashSet};
14pub use display_map::DisplayPoint;
15use display_map::*;
16pub use element::*;
17use fuzzy::{StringMatch, StringMatchCandidate};
18use gpui::{
19 action,
20 color::Color,
21 elements::*,
22 executor,
23 fonts::{self, HighlightStyle, TextStyle},
24 geometry::vector::{vec2f, Vector2F},
25 keymap::Binding,
26 platform::CursorStyle,
27 text_layout, AppContext, AsyncAppContext, ClipboardItem, Element, ElementBox, Entity,
28 ModelHandle, MutableAppContext, RenderContext, Task, View, ViewContext, ViewHandle,
29 WeakModelHandle, WeakViewHandle,
30};
31use items::{BufferItemHandle, MultiBufferItemHandle};
32use itertools::Itertools as _;
33use language::{
34 AnchorRangeExt as _, BracketPair, Buffer, CodeAction, Completion, CompletionLabel, Diagnostic,
35 DiagnosticSeverity, Language, Point, Selection, SelectionGoal, TransactionId,
36};
37use multi_buffer::MultiBufferChunks;
38pub use multi_buffer::{
39 char_kind, Anchor, AnchorRangeExt, CharKind, ExcerptId, MultiBuffer, MultiBufferSnapshot,
40 ToOffset, ToPoint,
41};
42use ordered_float::OrderedFloat;
43use postage::watch;
44use project::{Project, ProjectTransaction};
45use serde::{Deserialize, Serialize};
46use smallvec::SmallVec;
47use smol::Timer;
48use snippet::Snippet;
49use std::{
50 any::TypeId,
51 cmp::{self, Ordering, Reverse},
52 iter::{self, FromIterator},
53 mem,
54 ops::{Deref, DerefMut, Range, RangeInclusive, Sub},
55 sync::Arc,
56 time::{Duration, Instant},
57};
58pub use sum_tree::Bias;
59use text::rope::TextDimension;
60use theme::{DiagnosticStyle, EditorStyle};
61use util::{post_inc, ResultExt, TryFutureExt};
62use workspace::{ItemNavHistory, PathOpener, Workspace};
63
64const CURSOR_BLINK_INTERVAL: Duration = Duration::from_millis(500);
65const MAX_LINE_LEN: usize = 1024;
66const MIN_NAVIGATION_HISTORY_ROW_DELTA: i64 = 10;
67
68action!(Cancel);
69action!(Backspace);
70action!(Delete);
71action!(Input, String);
72action!(Newline);
73action!(Tab);
74action!(Outdent);
75action!(DeleteLine);
76action!(DeleteToPreviousWordBoundary);
77action!(DeleteToNextWordBoundary);
78action!(DeleteToBeginningOfLine);
79action!(DeleteToEndOfLine);
80action!(CutToEndOfLine);
81action!(DuplicateLine);
82action!(MoveLineUp);
83action!(MoveLineDown);
84action!(Cut);
85action!(Copy);
86action!(Paste);
87action!(Undo);
88action!(Redo);
89action!(MoveUp);
90action!(MoveDown);
91action!(MoveLeft);
92action!(MoveRight);
93action!(MoveToPreviousWordBoundary);
94action!(MoveToNextWordBoundary);
95action!(MoveToBeginningOfLine);
96action!(MoveToEndOfLine);
97action!(MoveToBeginning);
98action!(MoveToEnd);
99action!(SelectUp);
100action!(SelectDown);
101action!(SelectLeft);
102action!(SelectRight);
103action!(SelectToPreviousWordBoundary);
104action!(SelectToNextWordBoundary);
105action!(SelectToBeginningOfLine, bool);
106action!(SelectToEndOfLine, bool);
107action!(SelectToBeginning);
108action!(SelectToEnd);
109action!(SelectAll);
110action!(SelectLine);
111action!(SplitSelectionIntoLines);
112action!(AddSelectionAbove);
113action!(AddSelectionBelow);
114action!(SelectNext, bool);
115action!(ToggleComments);
116action!(SelectLargerSyntaxNode);
117action!(SelectSmallerSyntaxNode);
118action!(MoveToEnclosingBracket);
119action!(ShowNextDiagnostic);
120action!(GoToDefinition);
121action!(Rename);
122action!(ConfirmRename);
123action!(PageUp);
124action!(PageDown);
125action!(Fold);
126action!(Unfold);
127action!(FoldSelectedRanges);
128action!(Scroll, Vector2F);
129action!(Select, SelectPhase);
130action!(ShowCompletions);
131action!(ToggleCodeActions, bool);
132action!(ConfirmCompletion, Option<usize>);
133action!(ConfirmCodeAction, Option<usize>);
134
135pub fn init(cx: &mut MutableAppContext, path_openers: &mut Vec<Box<dyn PathOpener>>) {
136 path_openers.push(Box::new(items::BufferOpener));
137 cx.add_bindings(vec![
138 Binding::new("escape", Cancel, Some("Editor")),
139 Binding::new("backspace", Backspace, Some("Editor")),
140 Binding::new("ctrl-h", Backspace, Some("Editor")),
141 Binding::new("delete", Delete, Some("Editor")),
142 Binding::new("ctrl-d", Delete, Some("Editor")),
143 Binding::new("enter", Newline, Some("Editor && mode == full")),
144 Binding::new(
145 "alt-enter",
146 Input("\n".into()),
147 Some("Editor && mode == auto_height"),
148 ),
149 Binding::new(
150 "enter",
151 ConfirmCompletion(None),
152 Some("Editor && showing_completions"),
153 ),
154 Binding::new(
155 "enter",
156 ConfirmCodeAction(None),
157 Some("Editor && showing_code_actions"),
158 ),
159 Binding::new("enter", ConfirmRename, Some("Editor && renaming")),
160 Binding::new("tab", Tab, Some("Editor")),
161 Binding::new(
162 "tab",
163 ConfirmCompletion(None),
164 Some("Editor && showing_completions"),
165 ),
166 Binding::new("shift-tab", Outdent, Some("Editor")),
167 Binding::new("ctrl-shift-K", DeleteLine, Some("Editor")),
168 Binding::new(
169 "alt-backspace",
170 DeleteToPreviousWordBoundary,
171 Some("Editor"),
172 ),
173 Binding::new("alt-h", DeleteToPreviousWordBoundary, Some("Editor")),
174 Binding::new("alt-delete", DeleteToNextWordBoundary, Some("Editor")),
175 Binding::new("alt-d", DeleteToNextWordBoundary, Some("Editor")),
176 Binding::new("cmd-backspace", DeleteToBeginningOfLine, Some("Editor")),
177 Binding::new("cmd-delete", DeleteToEndOfLine, Some("Editor")),
178 Binding::new("ctrl-k", CutToEndOfLine, Some("Editor")),
179 Binding::new("cmd-shift-D", DuplicateLine, Some("Editor")),
180 Binding::new("ctrl-cmd-up", MoveLineUp, Some("Editor")),
181 Binding::new("ctrl-cmd-down", MoveLineDown, Some("Editor")),
182 Binding::new("cmd-x", Cut, Some("Editor")),
183 Binding::new("cmd-c", Copy, Some("Editor")),
184 Binding::new("cmd-v", Paste, Some("Editor")),
185 Binding::new("cmd-z", Undo, Some("Editor")),
186 Binding::new("cmd-shift-Z", Redo, Some("Editor")),
187 Binding::new("up", MoveUp, Some("Editor")),
188 Binding::new("down", MoveDown, Some("Editor")),
189 Binding::new("left", MoveLeft, Some("Editor")),
190 Binding::new("right", MoveRight, Some("Editor")),
191 Binding::new("ctrl-p", MoveUp, Some("Editor")),
192 Binding::new("ctrl-n", MoveDown, Some("Editor")),
193 Binding::new("ctrl-b", MoveLeft, Some("Editor")),
194 Binding::new("ctrl-f", MoveRight, Some("Editor")),
195 Binding::new("alt-left", MoveToPreviousWordBoundary, Some("Editor")),
196 Binding::new("alt-b", MoveToPreviousWordBoundary, Some("Editor")),
197 Binding::new("alt-right", MoveToNextWordBoundary, Some("Editor")),
198 Binding::new("alt-f", MoveToNextWordBoundary, Some("Editor")),
199 Binding::new("cmd-left", MoveToBeginningOfLine, Some("Editor")),
200 Binding::new("ctrl-a", MoveToBeginningOfLine, Some("Editor")),
201 Binding::new("cmd-right", MoveToEndOfLine, Some("Editor")),
202 Binding::new("ctrl-e", MoveToEndOfLine, Some("Editor")),
203 Binding::new("cmd-up", MoveToBeginning, Some("Editor")),
204 Binding::new("cmd-down", MoveToEnd, Some("Editor")),
205 Binding::new("shift-up", SelectUp, Some("Editor")),
206 Binding::new("ctrl-shift-P", SelectUp, Some("Editor")),
207 Binding::new("shift-down", SelectDown, Some("Editor")),
208 Binding::new("ctrl-shift-N", SelectDown, Some("Editor")),
209 Binding::new("shift-left", SelectLeft, Some("Editor")),
210 Binding::new("ctrl-shift-B", SelectLeft, Some("Editor")),
211 Binding::new("shift-right", SelectRight, Some("Editor")),
212 Binding::new("ctrl-shift-F", SelectRight, Some("Editor")),
213 Binding::new(
214 "alt-shift-left",
215 SelectToPreviousWordBoundary,
216 Some("Editor"),
217 ),
218 Binding::new("alt-shift-B", SelectToPreviousWordBoundary, Some("Editor")),
219 Binding::new("alt-shift-right", SelectToNextWordBoundary, Some("Editor")),
220 Binding::new("alt-shift-F", SelectToNextWordBoundary, Some("Editor")),
221 Binding::new(
222 "cmd-shift-left",
223 SelectToBeginningOfLine(true),
224 Some("Editor"),
225 ),
226 Binding::new(
227 "ctrl-shift-A",
228 SelectToBeginningOfLine(true),
229 Some("Editor"),
230 ),
231 Binding::new("cmd-shift-right", SelectToEndOfLine(true), Some("Editor")),
232 Binding::new("ctrl-shift-E", SelectToEndOfLine(true), Some("Editor")),
233 Binding::new("cmd-shift-up", SelectToBeginning, Some("Editor")),
234 Binding::new("cmd-shift-down", SelectToEnd, Some("Editor")),
235 Binding::new("cmd-a", SelectAll, Some("Editor")),
236 Binding::new("cmd-l", SelectLine, Some("Editor")),
237 Binding::new("cmd-shift-L", SplitSelectionIntoLines, Some("Editor")),
238 Binding::new("cmd-alt-up", AddSelectionAbove, Some("Editor")),
239 Binding::new("cmd-ctrl-p", AddSelectionAbove, Some("Editor")),
240 Binding::new("cmd-alt-down", AddSelectionBelow, Some("Editor")),
241 Binding::new("cmd-ctrl-n", AddSelectionBelow, Some("Editor")),
242 Binding::new("cmd-d", SelectNext(false), Some("Editor")),
243 Binding::new("cmd-k cmd-d", SelectNext(true), Some("Editor")),
244 Binding::new("cmd-/", ToggleComments, Some("Editor")),
245 Binding::new("alt-up", SelectLargerSyntaxNode, Some("Editor")),
246 Binding::new("ctrl-w", SelectLargerSyntaxNode, Some("Editor")),
247 Binding::new("alt-down", SelectSmallerSyntaxNode, Some("Editor")),
248 Binding::new("ctrl-shift-W", SelectSmallerSyntaxNode, Some("Editor")),
249 Binding::new("f8", ShowNextDiagnostic, Some("Editor")),
250 Binding::new("f2", Rename, Some("Editor")),
251 Binding::new("f12", GoToDefinition, Some("Editor")),
252 Binding::new("ctrl-m", MoveToEnclosingBracket, Some("Editor")),
253 Binding::new("pageup", PageUp, Some("Editor")),
254 Binding::new("pagedown", PageDown, Some("Editor")),
255 Binding::new("alt-cmd-[", Fold, Some("Editor")),
256 Binding::new("alt-cmd-]", Unfold, Some("Editor")),
257 Binding::new("alt-cmd-f", FoldSelectedRanges, Some("Editor")),
258 Binding::new("ctrl-space", ShowCompletions, Some("Editor")),
259 Binding::new("cmd-.", ToggleCodeActions(false), Some("Editor")),
260 ]);
261
262 cx.add_action(Editor::open_new);
263 cx.add_action(|this: &mut Editor, action: &Scroll, cx| this.set_scroll_position(action.0, cx));
264 cx.add_action(Editor::select);
265 cx.add_action(Editor::cancel);
266 cx.add_action(Editor::handle_input);
267 cx.add_action(Editor::newline);
268 cx.add_action(Editor::backspace);
269 cx.add_action(Editor::delete);
270 cx.add_action(Editor::tab);
271 cx.add_action(Editor::outdent);
272 cx.add_action(Editor::delete_line);
273 cx.add_action(Editor::delete_to_previous_word_boundary);
274 cx.add_action(Editor::delete_to_next_word_boundary);
275 cx.add_action(Editor::delete_to_beginning_of_line);
276 cx.add_action(Editor::delete_to_end_of_line);
277 cx.add_action(Editor::cut_to_end_of_line);
278 cx.add_action(Editor::duplicate_line);
279 cx.add_action(Editor::move_line_up);
280 cx.add_action(Editor::move_line_down);
281 cx.add_action(Editor::cut);
282 cx.add_action(Editor::copy);
283 cx.add_action(Editor::paste);
284 cx.add_action(Editor::undo);
285 cx.add_action(Editor::redo);
286 cx.add_action(Editor::move_up);
287 cx.add_action(Editor::move_down);
288 cx.add_action(Editor::move_left);
289 cx.add_action(Editor::move_right);
290 cx.add_action(Editor::move_to_previous_word_boundary);
291 cx.add_action(Editor::move_to_next_word_boundary);
292 cx.add_action(Editor::move_to_beginning_of_line);
293 cx.add_action(Editor::move_to_end_of_line);
294 cx.add_action(Editor::move_to_beginning);
295 cx.add_action(Editor::move_to_end);
296 cx.add_action(Editor::select_up);
297 cx.add_action(Editor::select_down);
298 cx.add_action(Editor::select_left);
299 cx.add_action(Editor::select_right);
300 cx.add_action(Editor::select_to_previous_word_boundary);
301 cx.add_action(Editor::select_to_next_word_boundary);
302 cx.add_action(Editor::select_to_beginning_of_line);
303 cx.add_action(Editor::select_to_end_of_line);
304 cx.add_action(Editor::select_to_beginning);
305 cx.add_action(Editor::select_to_end);
306 cx.add_action(Editor::select_all);
307 cx.add_action(Editor::select_line);
308 cx.add_action(Editor::split_selection_into_lines);
309 cx.add_action(Editor::add_selection_above);
310 cx.add_action(Editor::add_selection_below);
311 cx.add_action(Editor::select_next);
312 cx.add_action(Editor::toggle_comments);
313 cx.add_action(Editor::select_larger_syntax_node);
314 cx.add_action(Editor::select_smaller_syntax_node);
315 cx.add_action(Editor::move_to_enclosing_bracket);
316 cx.add_action(Editor::show_next_diagnostic);
317 cx.add_action(Editor::go_to_definition);
318 cx.add_action(Editor::page_up);
319 cx.add_action(Editor::page_down);
320 cx.add_action(Editor::fold);
321 cx.add_action(Editor::unfold);
322 cx.add_action(Editor::fold_selected_ranges);
323 cx.add_action(Editor::show_completions);
324 cx.add_action(Editor::toggle_code_actions);
325 cx.add_async_action(Editor::confirm_completion);
326 cx.add_async_action(Editor::confirm_code_action);
327 cx.add_async_action(Editor::rename);
328 cx.add_async_action(Editor::confirm_rename);
329}
330
331trait SelectionExt {
332 fn offset_range(&self, buffer: &MultiBufferSnapshot) -> Range<usize>;
333 fn point_range(&self, buffer: &MultiBufferSnapshot) -> Range<Point>;
334 fn display_range(&self, map: &DisplaySnapshot) -> Range<DisplayPoint>;
335 fn spanned_rows(&self, include_end_if_at_line_start: bool, map: &DisplaySnapshot)
336 -> Range<u32>;
337}
338
339trait InvalidationRegion {
340 fn ranges(&self) -> &[Range<Anchor>];
341}
342
343#[derive(Clone, Debug)]
344pub enum SelectPhase {
345 Begin {
346 position: DisplayPoint,
347 add: bool,
348 click_count: usize,
349 },
350 BeginColumnar {
351 position: DisplayPoint,
352 overshoot: u32,
353 },
354 Extend {
355 position: DisplayPoint,
356 click_count: usize,
357 },
358 Update {
359 position: DisplayPoint,
360 overshoot: u32,
361 scroll_position: Vector2F,
362 },
363 End,
364}
365
366#[derive(Clone, Debug)]
367pub enum SelectMode {
368 Character,
369 Word(Range<Anchor>),
370 Line(Range<Anchor>),
371 All,
372}
373
374#[derive(PartialEq, Eq)]
375pub enum Autoscroll {
376 Fit,
377 Center,
378 Newest,
379}
380
381#[derive(Copy, Clone, PartialEq, Eq)]
382pub enum EditorMode {
383 SingleLine,
384 AutoHeight { max_lines: usize },
385 Full,
386}
387
388#[derive(Clone)]
389pub struct EditorSettings {
390 pub tab_size: usize,
391 pub soft_wrap: SoftWrap,
392 pub style: EditorStyle,
393}
394
395#[derive(Clone)]
396pub enum SoftWrap {
397 None,
398 EditorWidth,
399 Column(u32),
400}
401
402type CompletionId = usize;
403
404pub type BuildSettings = Arc<dyn 'static + Send + Sync + Fn(&AppContext) -> EditorSettings>;
405
406pub struct Editor {
407 handle: WeakViewHandle<Self>,
408 buffer: ModelHandle<MultiBuffer>,
409 display_map: ModelHandle<DisplayMap>,
410 next_selection_id: usize,
411 selections: Arc<[Selection<Anchor>]>,
412 pending_selection: Option<PendingSelection>,
413 columnar_selection_tail: Option<Anchor>,
414 add_selections_state: Option<AddSelectionsState>,
415 select_next_state: Option<SelectNextState>,
416 selection_history:
417 HashMap<TransactionId, (Arc<[Selection<Anchor>]>, Option<Arc<[Selection<Anchor>]>>)>,
418 autoclose_stack: InvalidationStack<BracketPairState>,
419 snippet_stack: InvalidationStack<SnippetState>,
420 select_larger_syntax_node_stack: Vec<Box<[Selection<usize>]>>,
421 active_diagnostics: Option<ActiveDiagnosticGroup>,
422 scroll_position: Vector2F,
423 scroll_top_anchor: Option<Anchor>,
424 autoscroll_request: Option<Autoscroll>,
425 build_settings: BuildSettings,
426 project: Option<ModelHandle<Project>>,
427 focused: bool,
428 show_local_cursors: bool,
429 blink_epoch: usize,
430 blinking_paused: bool,
431 mode: EditorMode,
432 vertical_scroll_margin: f32,
433 placeholder_text: Option<Arc<str>>,
434 highlighted_rows: Option<Range<u32>>,
435 highlighted_ranges: BTreeMap<TypeId, (Color, Vec<Range<Anchor>>)>,
436 nav_history: Option<ItemNavHistory>,
437 context_menu: Option<ContextMenu>,
438 completion_tasks: Vec<(CompletionId, Task<Option<()>>)>,
439 next_completion_id: CompletionId,
440 available_code_actions: Option<(ModelHandle<Buffer>, Arc<[CodeAction]>)>,
441 code_actions_task: Option<Task<()>>,
442 pending_rename: Option<RenameState>,
443}
444
445pub struct EditorSnapshot {
446 pub mode: EditorMode,
447 pub display_snapshot: DisplaySnapshot,
448 pub placeholder_text: Option<Arc<str>>,
449 is_focused: bool,
450 scroll_position: Vector2F,
451 scroll_top_anchor: Option<Anchor>,
452}
453
454#[derive(Clone)]
455pub struct PendingSelection {
456 selection: Selection<Anchor>,
457 mode: SelectMode,
458}
459
460struct AddSelectionsState {
461 above: bool,
462 stack: Vec<usize>,
463}
464
465struct SelectNextState {
466 query: AhoCorasick,
467 wordwise: bool,
468 done: bool,
469}
470
471struct BracketPairState {
472 ranges: Vec<Range<Anchor>>,
473 pair: BracketPair,
474}
475
476struct SnippetState {
477 ranges: Vec<Vec<Range<Anchor>>>,
478 active_index: usize,
479}
480
481struct RenameState {
482 range: Range<Anchor>,
483 first_transaction: Option<TransactionId>,
484}
485
486struct InvalidationStack<T>(Vec<T>);
487
488enum ContextMenu {
489 Completions(CompletionsMenu),
490 CodeActions(CodeActionsMenu),
491}
492
493impl ContextMenu {
494 fn select_prev(&mut self, cx: &mut ViewContext<Editor>) -> bool {
495 if self.visible() {
496 match self {
497 ContextMenu::Completions(menu) => menu.select_prev(cx),
498 ContextMenu::CodeActions(menu) => menu.select_prev(cx),
499 }
500 true
501 } else {
502 false
503 }
504 }
505
506 fn select_next(&mut self, cx: &mut ViewContext<Editor>) -> bool {
507 if self.visible() {
508 match self {
509 ContextMenu::Completions(menu) => menu.select_next(cx),
510 ContextMenu::CodeActions(menu) => menu.select_next(cx),
511 }
512 true
513 } else {
514 false
515 }
516 }
517
518 fn visible(&self) -> bool {
519 match self {
520 ContextMenu::Completions(menu) => menu.visible(),
521 ContextMenu::CodeActions(menu) => menu.visible(),
522 }
523 }
524
525 fn render(
526 &self,
527 cursor_position: DisplayPoint,
528 build_settings: BuildSettings,
529 cx: &AppContext,
530 ) -> (DisplayPoint, ElementBox) {
531 match self {
532 ContextMenu::Completions(menu) => (cursor_position, menu.render(build_settings, cx)),
533 ContextMenu::CodeActions(menu) => menu.render(cursor_position, build_settings, cx),
534 }
535 }
536}
537
538struct CompletionsMenu {
539 id: CompletionId,
540 initial_position: Anchor,
541 buffer: ModelHandle<Buffer>,
542 completions: Arc<[Completion]>,
543 match_candidates: Vec<StringMatchCandidate>,
544 matches: Arc<[StringMatch]>,
545 selected_item: usize,
546 list: UniformListState,
547}
548
549impl CompletionsMenu {
550 fn select_prev(&mut self, cx: &mut ViewContext<Editor>) {
551 if self.selected_item > 0 {
552 self.selected_item -= 1;
553 self.list.scroll_to(ScrollTarget::Show(self.selected_item));
554 }
555 cx.notify();
556 }
557
558 fn select_next(&mut self, cx: &mut ViewContext<Editor>) {
559 if self.selected_item + 1 < self.matches.len() {
560 self.selected_item += 1;
561 self.list.scroll_to(ScrollTarget::Show(self.selected_item));
562 }
563 cx.notify();
564 }
565
566 fn visible(&self) -> bool {
567 !self.matches.is_empty()
568 }
569
570 fn render(&self, build_settings: BuildSettings, cx: &AppContext) -> ElementBox {
571 enum CompletionTag {}
572
573 let settings = build_settings(cx);
574 let completions = self.completions.clone();
575 let matches = self.matches.clone();
576 let selected_item = self.selected_item;
577 UniformList::new(self.list.clone(), matches.len(), move |range, items, cx| {
578 let settings = build_settings(cx);
579 let start_ix = range.start;
580 for (ix, mat) in matches[range].iter().enumerate() {
581 let completion = &completions[mat.candidate_id];
582 let item_ix = start_ix + ix;
583 items.push(
584 MouseEventHandler::new::<CompletionTag, _, _>(
585 mat.candidate_id,
586 cx,
587 |state, _| {
588 let item_style = if item_ix == selected_item {
589 settings.style.autocomplete.selected_item
590 } else if state.hovered {
591 settings.style.autocomplete.hovered_item
592 } else {
593 settings.style.autocomplete.item
594 };
595
596 Text::new(completion.label.text.clone(), settings.style.text.clone())
597 .with_soft_wrap(false)
598 .with_highlights(combine_syntax_and_fuzzy_match_highlights(
599 &completion.label.text,
600 settings.style.text.color.into(),
601 styled_runs_for_completion_label(
602 &completion.label,
603 settings.style.text.color,
604 &settings.style.syntax,
605 ),
606 &mat.positions,
607 ))
608 .contained()
609 .with_style(item_style)
610 .boxed()
611 },
612 )
613 .with_cursor_style(CursorStyle::PointingHand)
614 .on_mouse_down(move |cx| {
615 cx.dispatch_action(ConfirmCompletion(Some(item_ix)));
616 })
617 .boxed(),
618 );
619 }
620 })
621 .with_width_from_item(
622 self.matches
623 .iter()
624 .enumerate()
625 .max_by_key(|(_, mat)| {
626 self.completions[mat.candidate_id]
627 .label
628 .text
629 .chars()
630 .count()
631 })
632 .map(|(ix, _)| ix),
633 )
634 .contained()
635 .with_style(settings.style.autocomplete.container)
636 .boxed()
637 }
638
639 pub async fn filter(&mut self, query: Option<&str>, executor: Arc<executor::Background>) {
640 let mut matches = if let Some(query) = query {
641 fuzzy::match_strings(
642 &self.match_candidates,
643 query,
644 false,
645 100,
646 &Default::default(),
647 executor,
648 )
649 .await
650 } else {
651 self.match_candidates
652 .iter()
653 .enumerate()
654 .map(|(candidate_id, candidate)| StringMatch {
655 candidate_id,
656 score: Default::default(),
657 positions: Default::default(),
658 string: candidate.string.clone(),
659 })
660 .collect()
661 };
662 matches.sort_unstable_by_key(|mat| {
663 (
664 Reverse(OrderedFloat(mat.score)),
665 self.completions[mat.candidate_id].sort_key(),
666 )
667 });
668
669 for mat in &mut matches {
670 let filter_start = self.completions[mat.candidate_id].label.filter_range.start;
671 for position in &mut mat.positions {
672 *position += filter_start;
673 }
674 }
675
676 self.matches = matches.into();
677 }
678}
679
680#[derive(Clone)]
681struct CodeActionsMenu {
682 actions: Arc<[CodeAction]>,
683 buffer: ModelHandle<Buffer>,
684 selected_item: usize,
685 list: UniformListState,
686 deployed_from_indicator: bool,
687}
688
689impl CodeActionsMenu {
690 fn select_prev(&mut self, cx: &mut ViewContext<Editor>) {
691 if self.selected_item > 0 {
692 self.selected_item -= 1;
693 cx.notify()
694 }
695 }
696
697 fn select_next(&mut self, cx: &mut ViewContext<Editor>) {
698 if self.selected_item + 1 < self.actions.len() {
699 self.selected_item += 1;
700 cx.notify()
701 }
702 }
703
704 fn visible(&self) -> bool {
705 !self.actions.is_empty()
706 }
707
708 fn render(
709 &self,
710 mut cursor_position: DisplayPoint,
711 build_settings: BuildSettings,
712 cx: &AppContext,
713 ) -> (DisplayPoint, ElementBox) {
714 enum ActionTag {}
715
716 let settings = build_settings(cx);
717 let actions = self.actions.clone();
718 let selected_item = self.selected_item;
719 let element =
720 UniformList::new(self.list.clone(), actions.len(), move |range, items, cx| {
721 let settings = build_settings(cx);
722 let start_ix = range.start;
723 for (ix, action) in actions[range].iter().enumerate() {
724 let item_ix = start_ix + ix;
725 items.push(
726 MouseEventHandler::new::<ActionTag, _, _>(item_ix, cx, |state, _| {
727 let item_style = if item_ix == selected_item {
728 settings.style.autocomplete.selected_item
729 } else if state.hovered {
730 settings.style.autocomplete.hovered_item
731 } else {
732 settings.style.autocomplete.item
733 };
734
735 Text::new(action.lsp_action.title.clone(), settings.style.text.clone())
736 .with_soft_wrap(false)
737 .contained()
738 .with_style(item_style)
739 .boxed()
740 })
741 .with_cursor_style(CursorStyle::PointingHand)
742 .on_mouse_down(move |cx| {
743 cx.dispatch_action(ConfirmCodeAction(Some(item_ix)));
744 })
745 .boxed(),
746 );
747 }
748 })
749 .with_width_from_item(
750 self.actions
751 .iter()
752 .enumerate()
753 .max_by_key(|(_, action)| action.lsp_action.title.chars().count())
754 .map(|(ix, _)| ix),
755 )
756 .contained()
757 .with_style(settings.style.autocomplete.container)
758 .boxed();
759
760 if self.deployed_from_indicator {
761 *cursor_position.column_mut() = 0;
762 }
763
764 (cursor_position, element)
765 }
766}
767
768#[derive(Debug)]
769struct ActiveDiagnosticGroup {
770 primary_range: Range<Anchor>,
771 primary_message: String,
772 blocks: HashMap<BlockId, Diagnostic>,
773 is_valid: bool,
774}
775
776#[derive(Serialize, Deserialize)]
777struct ClipboardSelection {
778 len: usize,
779 is_entire_line: bool,
780}
781
782pub struct NavigationData {
783 anchor: Anchor,
784 offset: usize,
785}
786
787impl Editor {
788 pub fn single_line(build_settings: BuildSettings, cx: &mut ViewContext<Self>) -> Self {
789 let buffer = cx.add_model(|cx| Buffer::new(0, String::new(), cx));
790 let buffer = cx.add_model(|cx| MultiBuffer::singleton(buffer, cx));
791 let mut view = Self::for_buffer(buffer, build_settings, None, cx);
792 view.mode = EditorMode::SingleLine;
793 view
794 }
795
796 pub fn auto_height(
797 max_lines: usize,
798 build_settings: BuildSettings,
799 cx: &mut ViewContext<Self>,
800 ) -> Self {
801 let buffer = cx.add_model(|cx| Buffer::new(0, String::new(), cx));
802 let buffer = cx.add_model(|cx| MultiBuffer::singleton(buffer, cx));
803 let mut view = Self::for_buffer(buffer, build_settings, None, cx);
804 view.mode = EditorMode::AutoHeight { max_lines };
805 view
806 }
807
808 pub fn for_buffer(
809 buffer: ModelHandle<MultiBuffer>,
810 build_settings: BuildSettings,
811 project: Option<ModelHandle<Project>>,
812 cx: &mut ViewContext<Self>,
813 ) -> Self {
814 Self::new(buffer, build_settings, project, cx)
815 }
816
817 pub fn clone(&self, cx: &mut ViewContext<Self>) -> Self {
818 let mut clone = Self::new(
819 self.buffer.clone(),
820 self.build_settings.clone(),
821 self.project.clone(),
822 cx,
823 );
824 clone.scroll_position = self.scroll_position;
825 clone.scroll_top_anchor = self.scroll_top_anchor.clone();
826 clone.nav_history = self
827 .nav_history
828 .as_ref()
829 .map(|nav_history| ItemNavHistory::new(nav_history.history(), &cx.handle()));
830 clone
831 }
832
833 pub fn new(
834 buffer: ModelHandle<MultiBuffer>,
835 build_settings: BuildSettings,
836 project: Option<ModelHandle<Project>>,
837 cx: &mut ViewContext<Self>,
838 ) -> Self {
839 let settings = build_settings(cx);
840 let display_map = cx.add_model(|cx| {
841 DisplayMap::new(
842 buffer.clone(),
843 settings.tab_size,
844 settings.style.text.font_id,
845 settings.style.text.font_size,
846 None,
847 2,
848 1,
849 cx,
850 )
851 });
852 cx.observe(&buffer, Self::on_buffer_changed).detach();
853 cx.subscribe(&buffer, Self::on_buffer_event).detach();
854 cx.observe(&display_map, Self::on_display_map_changed)
855 .detach();
856
857 let mut this = Self {
858 handle: cx.weak_handle(),
859 buffer,
860 display_map,
861 selections: Arc::from([]),
862 pending_selection: Some(PendingSelection {
863 selection: Selection {
864 id: 0,
865 start: Anchor::min(),
866 end: Anchor::min(),
867 reversed: false,
868 goal: SelectionGoal::None,
869 },
870 mode: SelectMode::Character,
871 }),
872 columnar_selection_tail: None,
873 next_selection_id: 1,
874 add_selections_state: None,
875 select_next_state: None,
876 selection_history: Default::default(),
877 autoclose_stack: Default::default(),
878 snippet_stack: Default::default(),
879 select_larger_syntax_node_stack: Vec::new(),
880 active_diagnostics: None,
881 build_settings,
882 project,
883 scroll_position: Vector2F::zero(),
884 scroll_top_anchor: None,
885 autoscroll_request: None,
886 focused: false,
887 show_local_cursors: false,
888 blink_epoch: 0,
889 blinking_paused: false,
890 mode: EditorMode::Full,
891 vertical_scroll_margin: 3.0,
892 placeholder_text: None,
893 highlighted_rows: None,
894 highlighted_ranges: Default::default(),
895 nav_history: None,
896 context_menu: None,
897 completion_tasks: Default::default(),
898 next_completion_id: 0,
899 available_code_actions: Default::default(),
900 code_actions_task: Default::default(),
901 pending_rename: Default::default(),
902 };
903 this.end_selection(cx);
904 this
905 }
906
907 pub fn open_new(
908 workspace: &mut Workspace,
909 _: &workspace::OpenNew,
910 cx: &mut ViewContext<Workspace>,
911 ) {
912 let buffer = cx
913 .add_model(|cx| Buffer::new(0, "", cx).with_language(language::PLAIN_TEXT.clone(), cx));
914 workspace.open_item(BufferItemHandle(buffer), cx);
915 }
916
917 pub fn replica_id(&self, cx: &AppContext) -> ReplicaId {
918 self.buffer.read(cx).replica_id()
919 }
920
921 pub fn buffer(&self) -> &ModelHandle<MultiBuffer> {
922 &self.buffer
923 }
924
925 pub fn title(&self, cx: &AppContext) -> String {
926 self.buffer().read(cx).title(cx)
927 }
928
929 pub fn snapshot(&mut self, cx: &mut MutableAppContext) -> EditorSnapshot {
930 EditorSnapshot {
931 mode: self.mode,
932 display_snapshot: self.display_map.update(cx, |map, cx| map.snapshot(cx)),
933 scroll_position: self.scroll_position,
934 scroll_top_anchor: self.scroll_top_anchor.clone(),
935 placeholder_text: self.placeholder_text.clone(),
936 is_focused: self
937 .handle
938 .upgrade(cx)
939 .map_or(false, |handle| handle.is_focused(cx)),
940 }
941 }
942
943 pub fn language<'a>(&self, cx: &'a AppContext) -> Option<&'a Arc<Language>> {
944 self.buffer.read(cx).language(cx)
945 }
946
947 pub fn set_placeholder_text(
948 &mut self,
949 placeholder_text: impl Into<Arc<str>>,
950 cx: &mut ViewContext<Self>,
951 ) {
952 self.placeholder_text = Some(placeholder_text.into());
953 cx.notify();
954 }
955
956 pub fn set_vertical_scroll_margin(&mut self, margin_rows: usize, cx: &mut ViewContext<Self>) {
957 self.vertical_scroll_margin = margin_rows as f32;
958 cx.notify();
959 }
960
961 pub fn set_scroll_position(&mut self, scroll_position: Vector2F, cx: &mut ViewContext<Self>) {
962 let map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
963
964 if scroll_position.y() == 0. {
965 self.scroll_top_anchor = None;
966 self.scroll_position = scroll_position;
967 } else {
968 let scroll_top_buffer_offset =
969 DisplayPoint::new(scroll_position.y() as u32, 0).to_offset(&map, Bias::Right);
970 let anchor = map
971 .buffer_snapshot
972 .anchor_at(scroll_top_buffer_offset, Bias::Right);
973 self.scroll_position = vec2f(
974 scroll_position.x(),
975 scroll_position.y() - anchor.to_display_point(&map).row() as f32,
976 );
977 self.scroll_top_anchor = Some(anchor);
978 }
979
980 cx.notify();
981 }
982
983 pub fn scroll_position(&self, cx: &mut ViewContext<Self>) -> Vector2F {
984 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
985 compute_scroll_position(&display_map, self.scroll_position, &self.scroll_top_anchor)
986 }
987
988 pub fn clamp_scroll_left(&mut self, max: f32) -> bool {
989 if max < self.scroll_position.x() {
990 self.scroll_position.set_x(max);
991 true
992 } else {
993 false
994 }
995 }
996
997 pub fn autoscroll_vertically(
998 &mut self,
999 viewport_height: f32,
1000 line_height: f32,
1001 cx: &mut ViewContext<Self>,
1002 ) -> bool {
1003 let visible_lines = viewport_height / line_height;
1004 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
1005 let mut scroll_position =
1006 compute_scroll_position(&display_map, self.scroll_position, &self.scroll_top_anchor);
1007 let max_scroll_top = if matches!(self.mode, EditorMode::AutoHeight { .. }) {
1008 (display_map.max_point().row() as f32 - visible_lines + 1.).max(0.)
1009 } else {
1010 display_map.max_point().row().saturating_sub(1) as f32
1011 };
1012 if scroll_position.y() > max_scroll_top {
1013 scroll_position.set_y(max_scroll_top);
1014 self.set_scroll_position(scroll_position, cx);
1015 }
1016
1017 let autoscroll = if let Some(autoscroll) = self.autoscroll_request.take() {
1018 autoscroll
1019 } else {
1020 return false;
1021 };
1022
1023 let first_cursor_top;
1024 let last_cursor_bottom;
1025 if let Some(highlighted_rows) = &self.highlighted_rows {
1026 first_cursor_top = highlighted_rows.start as f32;
1027 last_cursor_bottom = first_cursor_top + 1.;
1028 } else if autoscroll == Autoscroll::Newest {
1029 let newest_selection = self.newest_selection::<Point>(&display_map.buffer_snapshot);
1030 first_cursor_top = newest_selection.head().to_display_point(&display_map).row() as f32;
1031 last_cursor_bottom = first_cursor_top + 1.;
1032 } else {
1033 let selections = self.local_selections::<Point>(cx);
1034 first_cursor_top = selections
1035 .first()
1036 .unwrap()
1037 .head()
1038 .to_display_point(&display_map)
1039 .row() as f32;
1040 last_cursor_bottom = selections
1041 .last()
1042 .unwrap()
1043 .head()
1044 .to_display_point(&display_map)
1045 .row() as f32
1046 + 1.0;
1047 }
1048
1049 let margin = if matches!(self.mode, EditorMode::AutoHeight { .. }) {
1050 0.
1051 } else {
1052 ((visible_lines - (last_cursor_bottom - first_cursor_top)) / 2.0).floor()
1053 };
1054 if margin < 0.0 {
1055 return false;
1056 }
1057
1058 match autoscroll {
1059 Autoscroll::Fit | Autoscroll::Newest => {
1060 let margin = margin.min(self.vertical_scroll_margin);
1061 let target_top = (first_cursor_top - margin).max(0.0);
1062 let target_bottom = last_cursor_bottom + margin;
1063 let start_row = scroll_position.y();
1064 let end_row = start_row + visible_lines;
1065
1066 if target_top < start_row {
1067 scroll_position.set_y(target_top);
1068 self.set_scroll_position(scroll_position, cx);
1069 } else if target_bottom >= end_row {
1070 scroll_position.set_y(target_bottom - visible_lines);
1071 self.set_scroll_position(scroll_position, cx);
1072 }
1073 }
1074 Autoscroll::Center => {
1075 scroll_position.set_y((first_cursor_top - margin).max(0.0));
1076 self.set_scroll_position(scroll_position, cx);
1077 }
1078 }
1079
1080 true
1081 }
1082
1083 pub fn autoscroll_horizontally(
1084 &mut self,
1085 start_row: u32,
1086 viewport_width: f32,
1087 scroll_width: f32,
1088 max_glyph_width: f32,
1089 layouts: &[text_layout::Line],
1090 cx: &mut ViewContext<Self>,
1091 ) -> bool {
1092 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
1093 let selections = self.local_selections::<Point>(cx);
1094
1095 let mut target_left;
1096 let mut target_right;
1097
1098 if self.highlighted_rows.is_some() {
1099 target_left = 0.0_f32;
1100 target_right = 0.0_f32;
1101 } else {
1102 target_left = std::f32::INFINITY;
1103 target_right = 0.0_f32;
1104 for selection in selections {
1105 let head = selection.head().to_display_point(&display_map);
1106 if head.row() >= start_row && head.row() < start_row + layouts.len() as u32 {
1107 let start_column = head.column().saturating_sub(3);
1108 let end_column = cmp::min(display_map.line_len(head.row()), head.column() + 3);
1109 target_left = target_left.min(
1110 layouts[(head.row() - start_row) as usize]
1111 .x_for_index(start_column as usize),
1112 );
1113 target_right = target_right.max(
1114 layouts[(head.row() - start_row) as usize].x_for_index(end_column as usize)
1115 + max_glyph_width,
1116 );
1117 }
1118 }
1119 }
1120
1121 target_right = target_right.min(scroll_width);
1122
1123 if target_right - target_left > viewport_width {
1124 return false;
1125 }
1126
1127 let scroll_left = self.scroll_position.x() * max_glyph_width;
1128 let scroll_right = scroll_left + viewport_width;
1129
1130 if target_left < scroll_left {
1131 self.scroll_position.set_x(target_left / max_glyph_width);
1132 true
1133 } else if target_right > scroll_right {
1134 self.scroll_position
1135 .set_x((target_right - viewport_width) / max_glyph_width);
1136 true
1137 } else {
1138 false
1139 }
1140 }
1141
1142 fn select(&mut self, Select(phase): &Select, cx: &mut ViewContext<Self>) {
1143 self.hide_context_menu(cx);
1144
1145 match phase {
1146 SelectPhase::Begin {
1147 position,
1148 add,
1149 click_count,
1150 } => self.begin_selection(*position, *add, *click_count, cx),
1151 SelectPhase::BeginColumnar {
1152 position,
1153 overshoot,
1154 } => self.begin_columnar_selection(*position, *overshoot, cx),
1155 SelectPhase::Extend {
1156 position,
1157 click_count,
1158 } => self.extend_selection(*position, *click_count, cx),
1159 SelectPhase::Update {
1160 position,
1161 overshoot,
1162 scroll_position,
1163 } => self.update_selection(*position, *overshoot, *scroll_position, cx),
1164 SelectPhase::End => self.end_selection(cx),
1165 }
1166 }
1167
1168 fn extend_selection(
1169 &mut self,
1170 position: DisplayPoint,
1171 click_count: usize,
1172 cx: &mut ViewContext<Self>,
1173 ) {
1174 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
1175 let tail = self
1176 .newest_selection::<usize>(&display_map.buffer_snapshot)
1177 .tail();
1178 self.begin_selection(position, false, click_count, cx);
1179
1180 let position = position.to_offset(&display_map, Bias::Left);
1181 let tail_anchor = display_map.buffer_snapshot.anchor_before(tail);
1182 let mut pending = self.pending_selection.clone().unwrap();
1183
1184 if position >= tail {
1185 pending.selection.start = tail_anchor.clone();
1186 } else {
1187 pending.selection.end = tail_anchor.clone();
1188 pending.selection.reversed = true;
1189 }
1190
1191 match &mut pending.mode {
1192 SelectMode::Word(range) | SelectMode::Line(range) => {
1193 *range = tail_anchor.clone()..tail_anchor
1194 }
1195 _ => {}
1196 }
1197
1198 self.set_selections(self.selections.clone(), Some(pending), cx);
1199 }
1200
1201 fn begin_selection(
1202 &mut self,
1203 position: DisplayPoint,
1204 add: bool,
1205 click_count: usize,
1206 cx: &mut ViewContext<Self>,
1207 ) {
1208 if !self.focused {
1209 cx.focus_self();
1210 cx.emit(Event::Activate);
1211 }
1212
1213 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
1214 let buffer = &display_map.buffer_snapshot;
1215 let newest_selection = self.newest_anchor_selection().clone();
1216
1217 let start;
1218 let end;
1219 let mode;
1220 match click_count {
1221 1 => {
1222 start = buffer.anchor_before(position.to_point(&display_map));
1223 end = start.clone();
1224 mode = SelectMode::Character;
1225 }
1226 2 => {
1227 let range = movement::surrounding_word(&display_map, position);
1228 start = buffer.anchor_before(range.start.to_point(&display_map));
1229 end = buffer.anchor_before(range.end.to_point(&display_map));
1230 mode = SelectMode::Word(start.clone()..end.clone());
1231 }
1232 3 => {
1233 let position = display_map
1234 .clip_point(position, Bias::Left)
1235 .to_point(&display_map);
1236 let line_start = display_map.prev_line_boundary(position).0;
1237 let next_line_start = buffer.clip_point(
1238 display_map.next_line_boundary(position).0 + Point::new(1, 0),
1239 Bias::Left,
1240 );
1241 start = buffer.anchor_before(line_start);
1242 end = buffer.anchor_before(next_line_start);
1243 mode = SelectMode::Line(start.clone()..end.clone());
1244 }
1245 _ => {
1246 start = buffer.anchor_before(0);
1247 end = buffer.anchor_before(buffer.len());
1248 mode = SelectMode::All;
1249 }
1250 }
1251
1252 self.push_to_nav_history(newest_selection.head(), Some(end.to_point(&buffer)), cx);
1253
1254 let selection = Selection {
1255 id: post_inc(&mut self.next_selection_id),
1256 start,
1257 end,
1258 reversed: false,
1259 goal: SelectionGoal::None,
1260 };
1261
1262 let mut selections;
1263 if add {
1264 selections = self.selections.clone();
1265 // Remove the newest selection if it was added due to a previous mouse up
1266 // within this multi-click.
1267 if click_count > 1 {
1268 selections = self
1269 .selections
1270 .iter()
1271 .filter(|selection| selection.id != newest_selection.id)
1272 .cloned()
1273 .collect();
1274 }
1275 } else {
1276 selections = Arc::from([]);
1277 }
1278 self.set_selections(selections, Some(PendingSelection { selection, mode }), cx);
1279
1280 cx.notify();
1281 }
1282
1283 fn begin_columnar_selection(
1284 &mut self,
1285 position: DisplayPoint,
1286 overshoot: u32,
1287 cx: &mut ViewContext<Self>,
1288 ) {
1289 if !self.focused {
1290 cx.focus_self();
1291 cx.emit(Event::Activate);
1292 }
1293
1294 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
1295 let tail = self
1296 .newest_selection::<Point>(&display_map.buffer_snapshot)
1297 .tail();
1298 self.columnar_selection_tail = Some(display_map.buffer_snapshot.anchor_before(tail));
1299
1300 self.select_columns(
1301 tail.to_display_point(&display_map),
1302 position,
1303 overshoot,
1304 &display_map,
1305 cx,
1306 );
1307 }
1308
1309 fn update_selection(
1310 &mut self,
1311 position: DisplayPoint,
1312 overshoot: u32,
1313 scroll_position: Vector2F,
1314 cx: &mut ViewContext<Self>,
1315 ) {
1316 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
1317
1318 if let Some(tail) = self.columnar_selection_tail.as_ref() {
1319 let tail = tail.to_display_point(&display_map);
1320 self.select_columns(tail, position, overshoot, &display_map, cx);
1321 } else if let Some(mut pending) = self.pending_selection.clone() {
1322 let buffer = self.buffer.read(cx).snapshot(cx);
1323 let head;
1324 let tail;
1325 match &pending.mode {
1326 SelectMode::Character => {
1327 head = position.to_point(&display_map);
1328 tail = pending.selection.tail().to_point(&buffer);
1329 }
1330 SelectMode::Word(original_range) => {
1331 let original_display_range = original_range.start.to_display_point(&display_map)
1332 ..original_range.end.to_display_point(&display_map);
1333 let original_buffer_range = original_display_range.start.to_point(&display_map)
1334 ..original_display_range.end.to_point(&display_map);
1335 if movement::is_inside_word(&display_map, position)
1336 || original_display_range.contains(&position)
1337 {
1338 let word_range = movement::surrounding_word(&display_map, position);
1339 if word_range.start < original_display_range.start {
1340 head = word_range.start.to_point(&display_map);
1341 } else {
1342 head = word_range.end.to_point(&display_map);
1343 }
1344 } else {
1345 head = position.to_point(&display_map);
1346 }
1347
1348 if head <= original_buffer_range.start {
1349 tail = original_buffer_range.end;
1350 } else {
1351 tail = original_buffer_range.start;
1352 }
1353 }
1354 SelectMode::Line(original_range) => {
1355 let original_range = original_range.to_point(&display_map.buffer_snapshot);
1356
1357 let position = display_map
1358 .clip_point(position, Bias::Left)
1359 .to_point(&display_map);
1360 let line_start = display_map.prev_line_boundary(position).0;
1361 let next_line_start = buffer.clip_point(
1362 display_map.next_line_boundary(position).0 + Point::new(1, 0),
1363 Bias::Left,
1364 );
1365
1366 if line_start < original_range.start {
1367 head = line_start
1368 } else {
1369 head = next_line_start
1370 }
1371
1372 if head <= original_range.start {
1373 tail = original_range.end;
1374 } else {
1375 tail = original_range.start;
1376 }
1377 }
1378 SelectMode::All => {
1379 return;
1380 }
1381 };
1382
1383 if head < tail {
1384 pending.selection.start = buffer.anchor_before(head);
1385 pending.selection.end = buffer.anchor_before(tail);
1386 pending.selection.reversed = true;
1387 } else {
1388 pending.selection.start = buffer.anchor_before(tail);
1389 pending.selection.end = buffer.anchor_before(head);
1390 pending.selection.reversed = false;
1391 }
1392 self.set_selections(self.selections.clone(), Some(pending), cx);
1393 } else {
1394 log::error!("update_selection dispatched with no pending selection");
1395 return;
1396 }
1397
1398 self.set_scroll_position(scroll_position, cx);
1399 cx.notify();
1400 }
1401
1402 fn end_selection(&mut self, cx: &mut ViewContext<Self>) {
1403 self.columnar_selection_tail.take();
1404 if self.pending_selection.is_some() {
1405 let selections = self.local_selections::<usize>(cx);
1406 self.update_selections(selections, None, cx);
1407 }
1408 }
1409
1410 fn select_columns(
1411 &mut self,
1412 tail: DisplayPoint,
1413 head: DisplayPoint,
1414 overshoot: u32,
1415 display_map: &DisplaySnapshot,
1416 cx: &mut ViewContext<Self>,
1417 ) {
1418 let start_row = cmp::min(tail.row(), head.row());
1419 let end_row = cmp::max(tail.row(), head.row());
1420 let start_column = cmp::min(tail.column(), head.column() + overshoot);
1421 let end_column = cmp::max(tail.column(), head.column() + overshoot);
1422 let reversed = start_column < tail.column();
1423
1424 let selections = (start_row..=end_row)
1425 .filter_map(|row| {
1426 if start_column <= display_map.line_len(row) && !display_map.is_block_line(row) {
1427 let start = display_map
1428 .clip_point(DisplayPoint::new(row, start_column), Bias::Left)
1429 .to_point(&display_map);
1430 let end = display_map
1431 .clip_point(DisplayPoint::new(row, end_column), Bias::Right)
1432 .to_point(&display_map);
1433 Some(Selection {
1434 id: post_inc(&mut self.next_selection_id),
1435 start,
1436 end,
1437 reversed,
1438 goal: SelectionGoal::None,
1439 })
1440 } else {
1441 None
1442 }
1443 })
1444 .collect::<Vec<_>>();
1445
1446 self.update_selections(selections, None, cx);
1447 cx.notify();
1448 }
1449
1450 pub fn is_selecting(&self) -> bool {
1451 self.pending_selection.is_some() || self.columnar_selection_tail.is_some()
1452 }
1453
1454 pub fn cancel(&mut self, _: &Cancel, cx: &mut ViewContext<Self>) {
1455 if self.take_rename(cx).is_some() {
1456 return;
1457 }
1458
1459 if self.hide_context_menu(cx).is_some() {
1460 return;
1461 }
1462
1463 if self.snippet_stack.pop().is_some() {
1464 return;
1465 }
1466
1467 if self.mode != EditorMode::Full {
1468 cx.propagate_action();
1469 return;
1470 }
1471
1472 if self.active_diagnostics.is_some() {
1473 self.dismiss_diagnostics(cx);
1474 } else if let Some(pending) = self.pending_selection.clone() {
1475 let mut selections = self.selections.clone();
1476 if selections.is_empty() {
1477 selections = Arc::from([pending.selection]);
1478 }
1479 self.set_selections(selections, None, cx);
1480 self.request_autoscroll(Autoscroll::Fit, cx);
1481 } else {
1482 let buffer = self.buffer.read(cx).snapshot(cx);
1483 let mut oldest_selection = self.oldest_selection::<usize>(&buffer);
1484 if self.selection_count() == 1 {
1485 if oldest_selection.is_empty() {
1486 cx.propagate_action();
1487 return;
1488 }
1489
1490 oldest_selection.start = oldest_selection.head().clone();
1491 oldest_selection.end = oldest_selection.head().clone();
1492 }
1493 self.update_selections(vec![oldest_selection], Some(Autoscroll::Fit), cx);
1494 }
1495 }
1496
1497 #[cfg(any(test, feature = "test-support"))]
1498 pub fn selected_ranges<D: TextDimension + Ord + Sub<D, Output = D>>(
1499 &self,
1500 cx: &mut MutableAppContext,
1501 ) -> Vec<Range<D>> {
1502 self.local_selections::<D>(cx)
1503 .iter()
1504 .map(|s| {
1505 if s.reversed {
1506 s.end.clone()..s.start.clone()
1507 } else {
1508 s.start.clone()..s.end.clone()
1509 }
1510 })
1511 .collect()
1512 }
1513
1514 #[cfg(any(test, feature = "test-support"))]
1515 pub fn selected_display_ranges(&self, cx: &mut MutableAppContext) -> Vec<Range<DisplayPoint>> {
1516 let display_map = self
1517 .display_map
1518 .update(cx, |display_map, cx| display_map.snapshot(cx));
1519 self.selections
1520 .iter()
1521 .chain(
1522 self.pending_selection
1523 .as_ref()
1524 .map(|pending| &pending.selection),
1525 )
1526 .map(|s| {
1527 if s.reversed {
1528 s.end.to_display_point(&display_map)..s.start.to_display_point(&display_map)
1529 } else {
1530 s.start.to_display_point(&display_map)..s.end.to_display_point(&display_map)
1531 }
1532 })
1533 .collect()
1534 }
1535
1536 pub fn select_ranges<I, T>(
1537 &mut self,
1538 ranges: I,
1539 autoscroll: Option<Autoscroll>,
1540 cx: &mut ViewContext<Self>,
1541 ) where
1542 I: IntoIterator<Item = Range<T>>,
1543 T: ToOffset,
1544 {
1545 let buffer = self.buffer.read(cx).snapshot(cx);
1546 let selections = ranges
1547 .into_iter()
1548 .map(|range| {
1549 let mut start = range.start.to_offset(&buffer);
1550 let mut end = range.end.to_offset(&buffer);
1551 let reversed = if start > end {
1552 mem::swap(&mut start, &mut end);
1553 true
1554 } else {
1555 false
1556 };
1557 Selection {
1558 id: post_inc(&mut self.next_selection_id),
1559 start,
1560 end,
1561 reversed,
1562 goal: SelectionGoal::None,
1563 }
1564 })
1565 .collect::<Vec<_>>();
1566 self.update_selections(selections, autoscroll, cx);
1567 }
1568
1569 #[cfg(any(test, feature = "test-support"))]
1570 pub fn select_display_ranges<'a, T>(&mut self, ranges: T, cx: &mut ViewContext<Self>)
1571 where
1572 T: IntoIterator<Item = &'a Range<DisplayPoint>>,
1573 {
1574 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
1575 let selections = ranges
1576 .into_iter()
1577 .map(|range| {
1578 let mut start = range.start;
1579 let mut end = range.end;
1580 let reversed = if start > end {
1581 mem::swap(&mut start, &mut end);
1582 true
1583 } else {
1584 false
1585 };
1586 Selection {
1587 id: post_inc(&mut self.next_selection_id),
1588 start: start.to_point(&display_map),
1589 end: end.to_point(&display_map),
1590 reversed,
1591 goal: SelectionGoal::None,
1592 }
1593 })
1594 .collect();
1595 self.update_selections(selections, None, cx);
1596 }
1597
1598 pub fn handle_input(&mut self, action: &Input, cx: &mut ViewContext<Self>) {
1599 let text = action.0.as_ref();
1600 if !self.skip_autoclose_end(text, cx) {
1601 self.start_transaction(cx);
1602 self.insert(text, cx);
1603 self.autoclose_pairs(cx);
1604 self.end_transaction(cx);
1605 self.trigger_completion_on_input(text, cx);
1606 }
1607 }
1608
1609 pub fn newline(&mut self, _: &Newline, cx: &mut ViewContext<Self>) {
1610 self.start_transaction(cx);
1611 let mut old_selections = SmallVec::<[_; 32]>::new();
1612 {
1613 let selections = self.local_selections::<usize>(cx);
1614 let buffer = self.buffer.read(cx).snapshot(cx);
1615 for selection in selections.iter() {
1616 let start_point = selection.start.to_point(&buffer);
1617 let indent = buffer
1618 .indent_column_for_line(start_point.row)
1619 .min(start_point.column);
1620 let start = selection.start;
1621 let end = selection.end;
1622
1623 let mut insert_extra_newline = false;
1624 if let Some(language) = buffer.language() {
1625 let leading_whitespace_len = buffer
1626 .reversed_chars_at(start)
1627 .take_while(|c| c.is_whitespace() && *c != '\n')
1628 .map(|c| c.len_utf8())
1629 .sum::<usize>();
1630
1631 let trailing_whitespace_len = buffer
1632 .chars_at(end)
1633 .take_while(|c| c.is_whitespace() && *c != '\n')
1634 .map(|c| c.len_utf8())
1635 .sum::<usize>();
1636
1637 insert_extra_newline = language.brackets().iter().any(|pair| {
1638 let pair_start = pair.start.trim_end();
1639 let pair_end = pair.end.trim_start();
1640
1641 pair.newline
1642 && buffer.contains_str_at(end + trailing_whitespace_len, pair_end)
1643 && buffer.contains_str_at(
1644 (start - leading_whitespace_len).saturating_sub(pair_start.len()),
1645 pair_start,
1646 )
1647 });
1648 }
1649
1650 old_selections.push((
1651 selection.id,
1652 buffer.anchor_after(end),
1653 start..end,
1654 indent,
1655 insert_extra_newline,
1656 ));
1657 }
1658 }
1659
1660 self.buffer.update(cx, |buffer, cx| {
1661 let mut delta = 0_isize;
1662 let mut pending_edit: Option<PendingEdit> = None;
1663 for (_, _, range, indent, insert_extra_newline) in &old_selections {
1664 if pending_edit.as_ref().map_or(false, |pending| {
1665 pending.indent != *indent
1666 || pending.insert_extra_newline != *insert_extra_newline
1667 }) {
1668 let pending = pending_edit.take().unwrap();
1669 let mut new_text = String::with_capacity(1 + pending.indent as usize);
1670 new_text.push('\n');
1671 new_text.extend(iter::repeat(' ').take(pending.indent as usize));
1672 if pending.insert_extra_newline {
1673 new_text = new_text.repeat(2);
1674 }
1675 buffer.edit_with_autoindent(pending.ranges, new_text, cx);
1676 delta += pending.delta;
1677 }
1678
1679 let start = (range.start as isize + delta) as usize;
1680 let end = (range.end as isize + delta) as usize;
1681 let mut text_len = *indent as usize + 1;
1682 if *insert_extra_newline {
1683 text_len *= 2;
1684 }
1685
1686 let pending = pending_edit.get_or_insert_with(Default::default);
1687 pending.delta += text_len as isize - (end - start) as isize;
1688 pending.indent = *indent;
1689 pending.insert_extra_newline = *insert_extra_newline;
1690 pending.ranges.push(start..end);
1691 }
1692
1693 let pending = pending_edit.unwrap();
1694 let mut new_text = String::with_capacity(1 + pending.indent as usize);
1695 new_text.push('\n');
1696 new_text.extend(iter::repeat(' ').take(pending.indent as usize));
1697 if pending.insert_extra_newline {
1698 new_text = new_text.repeat(2);
1699 }
1700 buffer.edit_with_autoindent(pending.ranges, new_text, cx);
1701
1702 let buffer = buffer.read(cx);
1703 self.selections = self
1704 .selections
1705 .iter()
1706 .cloned()
1707 .zip(old_selections)
1708 .map(
1709 |(mut new_selection, (_, end_anchor, _, _, insert_extra_newline))| {
1710 let mut cursor = end_anchor.to_point(&buffer);
1711 if insert_extra_newline {
1712 cursor.row -= 1;
1713 cursor.column = buffer.line_len(cursor.row);
1714 }
1715 let anchor = buffer.anchor_after(cursor);
1716 new_selection.start = anchor.clone();
1717 new_selection.end = anchor;
1718 new_selection
1719 },
1720 )
1721 .collect();
1722 });
1723
1724 self.request_autoscroll(Autoscroll::Fit, cx);
1725 self.end_transaction(cx);
1726
1727 #[derive(Default)]
1728 struct PendingEdit {
1729 indent: u32,
1730 insert_extra_newline: bool,
1731 delta: isize,
1732 ranges: SmallVec<[Range<usize>; 32]>,
1733 }
1734 }
1735
1736 pub fn insert(&mut self, text: &str, cx: &mut ViewContext<Self>) {
1737 self.start_transaction(cx);
1738
1739 let old_selections = self.local_selections::<usize>(cx);
1740 let selection_anchors = self.buffer.update(cx, |buffer, cx| {
1741 let anchors = {
1742 let snapshot = buffer.read(cx);
1743 old_selections
1744 .iter()
1745 .map(|s| (s.id, s.goal, snapshot.anchor_after(s.end)))
1746 .collect::<Vec<_>>()
1747 };
1748 let edit_ranges = old_selections.iter().map(|s| s.start..s.end);
1749 buffer.edit_with_autoindent(edit_ranges, text, cx);
1750 anchors
1751 });
1752
1753 let selections = {
1754 let snapshot = self.buffer.read(cx).read(cx);
1755 selection_anchors
1756 .into_iter()
1757 .map(|(id, goal, position)| {
1758 let position = position.to_offset(&snapshot);
1759 Selection {
1760 id,
1761 start: position,
1762 end: position,
1763 goal,
1764 reversed: false,
1765 }
1766 })
1767 .collect()
1768 };
1769 self.update_selections(selections, Some(Autoscroll::Fit), cx);
1770 self.end_transaction(cx);
1771 }
1772
1773 fn trigger_completion_on_input(&mut self, text: &str, cx: &mut ViewContext<Self>) {
1774 let selection = self.newest_anchor_selection();
1775 if self
1776 .buffer
1777 .read(cx)
1778 .is_completion_trigger(selection.head(), text, cx)
1779 {
1780 self.show_completions(&ShowCompletions, cx);
1781 } else {
1782 self.hide_context_menu(cx);
1783 }
1784 }
1785
1786 fn autoclose_pairs(&mut self, cx: &mut ViewContext<Self>) {
1787 let selections = self.local_selections::<usize>(cx);
1788 let mut bracket_pair_state = None;
1789 let mut new_selections = None;
1790 self.buffer.update(cx, |buffer, cx| {
1791 let mut snapshot = buffer.snapshot(cx);
1792 let left_biased_selections = selections
1793 .iter()
1794 .map(|selection| Selection {
1795 id: selection.id,
1796 start: snapshot.anchor_before(selection.start),
1797 end: snapshot.anchor_before(selection.end),
1798 reversed: selection.reversed,
1799 goal: selection.goal,
1800 })
1801 .collect::<Vec<_>>();
1802
1803 let autoclose_pair = snapshot.language().and_then(|language| {
1804 let first_selection_start = selections.first().unwrap().start;
1805 let pair = language.brackets().iter().find(|pair| {
1806 snapshot.contains_str_at(
1807 first_selection_start.saturating_sub(pair.start.len()),
1808 &pair.start,
1809 )
1810 });
1811 pair.and_then(|pair| {
1812 let should_autoclose = selections[1..].iter().all(|selection| {
1813 snapshot.contains_str_at(
1814 selection.start.saturating_sub(pair.start.len()),
1815 &pair.start,
1816 )
1817 });
1818
1819 if should_autoclose {
1820 Some(pair.clone())
1821 } else {
1822 None
1823 }
1824 })
1825 });
1826
1827 if let Some(pair) = autoclose_pair {
1828 let selection_ranges = selections
1829 .iter()
1830 .map(|selection| {
1831 let start = selection.start.to_offset(&snapshot);
1832 start..start
1833 })
1834 .collect::<SmallVec<[_; 32]>>();
1835
1836 buffer.edit(selection_ranges, &pair.end, cx);
1837 snapshot = buffer.snapshot(cx);
1838
1839 new_selections = Some(
1840 self.resolve_selections::<usize, _>(left_biased_selections.iter(), &snapshot)
1841 .collect::<Vec<_>>(),
1842 );
1843
1844 if pair.end.len() == 1 {
1845 let mut delta = 0;
1846 bracket_pair_state = Some(BracketPairState {
1847 ranges: selections
1848 .iter()
1849 .map(move |selection| {
1850 let offset = selection.start + delta;
1851 delta += 1;
1852 snapshot.anchor_before(offset)..snapshot.anchor_after(offset)
1853 })
1854 .collect(),
1855 pair,
1856 });
1857 }
1858 }
1859 });
1860
1861 if let Some(new_selections) = new_selections {
1862 self.update_selections(new_selections, None, cx);
1863 }
1864 if let Some(bracket_pair_state) = bracket_pair_state {
1865 self.autoclose_stack.push(bracket_pair_state);
1866 }
1867 }
1868
1869 fn skip_autoclose_end(&mut self, text: &str, cx: &mut ViewContext<Self>) -> bool {
1870 let old_selections = self.local_selections::<usize>(cx);
1871 let autoclose_pair = if let Some(autoclose_pair) = self.autoclose_stack.last() {
1872 autoclose_pair
1873 } else {
1874 return false;
1875 };
1876 if text != autoclose_pair.pair.end {
1877 return false;
1878 }
1879
1880 debug_assert_eq!(old_selections.len(), autoclose_pair.ranges.len());
1881
1882 let buffer = self.buffer.read(cx).snapshot(cx);
1883 if old_selections
1884 .iter()
1885 .zip(autoclose_pair.ranges.iter().map(|r| r.to_offset(&buffer)))
1886 .all(|(selection, autoclose_range)| {
1887 let autoclose_range_end = autoclose_range.end.to_offset(&buffer);
1888 selection.is_empty() && selection.start == autoclose_range_end
1889 })
1890 {
1891 let new_selections = old_selections
1892 .into_iter()
1893 .map(|selection| {
1894 let cursor = selection.start + 1;
1895 Selection {
1896 id: selection.id,
1897 start: cursor,
1898 end: cursor,
1899 reversed: false,
1900 goal: SelectionGoal::None,
1901 }
1902 })
1903 .collect();
1904 self.autoclose_stack.pop();
1905 self.update_selections(new_selections, Some(Autoscroll::Fit), cx);
1906 true
1907 } else {
1908 false
1909 }
1910 }
1911
1912 fn completion_query(buffer: &MultiBufferSnapshot, position: impl ToOffset) -> Option<String> {
1913 let offset = position.to_offset(buffer);
1914 let (word_range, kind) = buffer.surrounding_word(offset);
1915 if offset > word_range.start && kind == Some(CharKind::Word) {
1916 Some(
1917 buffer
1918 .text_for_range(word_range.start..offset)
1919 .collect::<String>(),
1920 )
1921 } else {
1922 None
1923 }
1924 }
1925
1926 fn show_completions(&mut self, _: &ShowCompletions, cx: &mut ViewContext<Self>) {
1927 if self.pending_rename.is_some() {
1928 return;
1929 }
1930
1931 let project = if let Some(project) = self.project.clone() {
1932 project
1933 } else {
1934 return;
1935 };
1936
1937 let position = self.newest_anchor_selection().head();
1938 let (buffer, buffer_position) = if let Some(output) = self
1939 .buffer
1940 .read(cx)
1941 .text_anchor_for_position(position.clone(), cx)
1942 {
1943 output
1944 } else {
1945 return;
1946 };
1947
1948 let query = Self::completion_query(&self.buffer.read(cx).read(cx), position.clone());
1949 let completions = project.update(cx, |project, cx| {
1950 project.completions(&buffer, buffer_position.clone(), cx)
1951 });
1952
1953 let id = post_inc(&mut self.next_completion_id);
1954 let task = cx.spawn_weak(|this, mut cx| {
1955 async move {
1956 let completions = completions.await?;
1957 if completions.is_empty() {
1958 return Ok(());
1959 }
1960
1961 let mut menu = CompletionsMenu {
1962 id,
1963 initial_position: position,
1964 match_candidates: completions
1965 .iter()
1966 .enumerate()
1967 .map(|(id, completion)| {
1968 StringMatchCandidate::new(
1969 id,
1970 completion.label.text[completion.label.filter_range.clone()].into(),
1971 )
1972 })
1973 .collect(),
1974 buffer,
1975 completions: completions.into(),
1976 matches: Vec::new().into(),
1977 selected_item: 0,
1978 list: Default::default(),
1979 };
1980
1981 menu.filter(query.as_deref(), cx.background()).await;
1982
1983 if let Some(this) = this.upgrade(&cx) {
1984 this.update(&mut cx, |this, cx| {
1985 match this.context_menu.as_ref() {
1986 None => {}
1987 Some(ContextMenu::Completions(prev_menu)) => {
1988 if prev_menu.id > menu.id {
1989 return;
1990 }
1991 }
1992 _ => return,
1993 }
1994
1995 this.completion_tasks.retain(|(id, _)| *id > menu.id);
1996 if this.focused {
1997 this.show_context_menu(ContextMenu::Completions(menu), cx);
1998 }
1999
2000 cx.notify();
2001 });
2002 }
2003 Ok::<_, anyhow::Error>(())
2004 }
2005 .log_err()
2006 });
2007 self.completion_tasks.push((id, task));
2008 }
2009
2010 pub fn confirm_completion(
2011 &mut self,
2012 ConfirmCompletion(completion_ix): &ConfirmCompletion,
2013 cx: &mut ViewContext<Self>,
2014 ) -> Option<Task<Result<()>>> {
2015 use language::ToOffset as _;
2016
2017 let completions_menu = if let ContextMenu::Completions(menu) = self.hide_context_menu(cx)? {
2018 menu
2019 } else {
2020 return None;
2021 };
2022
2023 let mat = completions_menu
2024 .matches
2025 .get(completion_ix.unwrap_or(completions_menu.selected_item))?;
2026 let buffer_handle = completions_menu.buffer;
2027 let completion = completions_menu.completions.get(mat.candidate_id)?;
2028
2029 let snippet;
2030 let text;
2031 if completion.is_snippet() {
2032 snippet = Some(Snippet::parse(&completion.new_text).log_err()?);
2033 text = snippet.as_ref().unwrap().text.clone();
2034 } else {
2035 snippet = None;
2036 text = completion.new_text.clone();
2037 };
2038 let buffer = buffer_handle.read(cx);
2039 let old_range = completion.old_range.to_offset(&buffer);
2040 let old_text = buffer.text_for_range(old_range.clone()).collect::<String>();
2041
2042 let selections = self.local_selections::<usize>(cx);
2043 let newest_selection = self.newest_anchor_selection();
2044 if newest_selection.start.buffer_id != Some(buffer_handle.id()) {
2045 return None;
2046 }
2047
2048 let lookbehind = newest_selection
2049 .start
2050 .text_anchor
2051 .to_offset(buffer)
2052 .saturating_sub(old_range.start);
2053 let lookahead = old_range
2054 .end
2055 .saturating_sub(newest_selection.end.text_anchor.to_offset(buffer));
2056 let mut common_prefix_len = old_text
2057 .bytes()
2058 .zip(text.bytes())
2059 .take_while(|(a, b)| a == b)
2060 .count();
2061
2062 let snapshot = self.buffer.read(cx).snapshot(cx);
2063 let mut ranges = Vec::new();
2064 for selection in &selections {
2065 if snapshot.contains_str_at(selection.start.saturating_sub(lookbehind), &old_text) {
2066 let start = selection.start.saturating_sub(lookbehind);
2067 let end = selection.end + lookahead;
2068 ranges.push(start + common_prefix_len..end);
2069 } else {
2070 common_prefix_len = 0;
2071 ranges.clear();
2072 ranges.extend(selections.iter().map(|s| {
2073 if s.id == newest_selection.id {
2074 old_range.clone()
2075 } else {
2076 s.start..s.end
2077 }
2078 }));
2079 break;
2080 }
2081 }
2082 let text = &text[common_prefix_len..];
2083
2084 self.start_transaction(cx);
2085 if let Some(mut snippet) = snippet {
2086 snippet.text = text.to_string();
2087 for tabstop in snippet.tabstops.iter_mut().flatten() {
2088 tabstop.start -= common_prefix_len as isize;
2089 tabstop.end -= common_prefix_len as isize;
2090 }
2091
2092 self.insert_snippet(&ranges, snippet, cx).log_err();
2093 } else {
2094 self.buffer.update(cx, |buffer, cx| {
2095 buffer.edit_with_autoindent(ranges, text, cx);
2096 });
2097 }
2098 self.end_transaction(cx);
2099
2100 let project = self.project.clone()?;
2101 let apply_edits = project.update(cx, |project, cx| {
2102 project.apply_additional_edits_for_completion(
2103 buffer_handle,
2104 completion.clone(),
2105 true,
2106 cx,
2107 )
2108 });
2109 Some(cx.foreground().spawn(async move {
2110 apply_edits.await?;
2111 Ok(())
2112 }))
2113 }
2114
2115 pub fn toggle_code_actions(
2116 &mut self,
2117 &ToggleCodeActions(deployed_from_indicator): &ToggleCodeActions,
2118 cx: &mut ViewContext<Self>,
2119 ) {
2120 if matches!(
2121 self.context_menu.as_ref(),
2122 Some(ContextMenu::CodeActions(_))
2123 ) {
2124 self.context_menu.take();
2125 cx.notify();
2126 return;
2127 }
2128
2129 let mut task = self.code_actions_task.take();
2130 cx.spawn_weak(|this, mut cx| async move {
2131 while let Some(prev_task) = task {
2132 prev_task.await;
2133 task = this
2134 .upgrade(&cx)
2135 .and_then(|this| this.update(&mut cx, |this, _| this.code_actions_task.take()));
2136 }
2137
2138 if let Some(this) = this.upgrade(&cx) {
2139 this.update(&mut cx, |this, cx| {
2140 if this.focused {
2141 if let Some((buffer, actions)) = this.available_code_actions.clone() {
2142 this.show_context_menu(
2143 ContextMenu::CodeActions(CodeActionsMenu {
2144 buffer,
2145 actions,
2146 selected_item: Default::default(),
2147 list: Default::default(),
2148 deployed_from_indicator,
2149 }),
2150 cx,
2151 );
2152 }
2153 }
2154 })
2155 }
2156 Ok::<_, anyhow::Error>(())
2157 })
2158 .detach_and_log_err(cx);
2159 }
2160
2161 pub fn confirm_code_action(
2162 workspace: &mut Workspace,
2163 ConfirmCodeAction(action_ix): &ConfirmCodeAction,
2164 cx: &mut ViewContext<Workspace>,
2165 ) -> Option<Task<Result<()>>> {
2166 let editor = workspace.active_item(cx)?.act_as::<Editor>(cx)?;
2167 let actions_menu = if let ContextMenu::CodeActions(menu) =
2168 editor.update(cx, |editor, cx| editor.hide_context_menu(cx))?
2169 {
2170 menu
2171 } else {
2172 return None;
2173 };
2174 let action_ix = action_ix.unwrap_or(actions_menu.selected_item);
2175 let action = actions_menu.actions.get(action_ix)?.clone();
2176 let title = action.lsp_action.title.clone();
2177 let buffer = actions_menu.buffer;
2178
2179 let apply_code_actions = workspace.project().clone().update(cx, |project, cx| {
2180 project.apply_code_action(buffer, action, true, cx)
2181 });
2182 Some(cx.spawn(|workspace, cx| async move {
2183 let project_transaction = apply_code_actions.await?;
2184 Self::open_project_transaction(editor, workspace, project_transaction, title, cx).await
2185 }))
2186 }
2187
2188 async fn open_project_transaction(
2189 this: ViewHandle<Editor>,
2190 workspace: ViewHandle<Workspace>,
2191 transaction: ProjectTransaction,
2192 title: String,
2193 mut cx: AsyncAppContext,
2194 ) -> Result<()> {
2195 let replica_id = this.read_with(&cx, |this, cx| this.replica_id(cx));
2196
2197 // If the code action's edits are all contained within this editor, then
2198 // avoid opening a new editor to display them.
2199 let mut entries = transaction.0.iter();
2200 if let Some((buffer, transaction)) = entries.next() {
2201 if entries.next().is_none() {
2202 let excerpt = this.read_with(&cx, |editor, cx| {
2203 editor
2204 .buffer()
2205 .read(cx)
2206 .excerpt_containing(editor.newest_anchor_selection().head(), cx)
2207 });
2208 if let Some((excerpted_buffer, excerpt_range)) = excerpt {
2209 if excerpted_buffer == *buffer {
2210 let snapshot = buffer.read_with(&cx, |buffer, _| buffer.snapshot());
2211 let excerpt_range = excerpt_range.to_offset(&snapshot);
2212 if snapshot
2213 .edited_ranges_for_transaction(transaction)
2214 .all(|range| {
2215 excerpt_range.start <= range.start && excerpt_range.end >= range.end
2216 })
2217 {
2218 return Ok(());
2219 }
2220 }
2221 }
2222 }
2223 }
2224
2225 let mut ranges_to_highlight = Vec::new();
2226 let excerpt_buffer = cx.add_model(|cx| {
2227 let mut multibuffer = MultiBuffer::new(replica_id).with_title(title);
2228 for (buffer, transaction) in &transaction.0 {
2229 let snapshot = buffer.read(cx).snapshot();
2230 ranges_to_highlight.extend(
2231 multibuffer.push_excerpts_with_context_lines(
2232 buffer.clone(),
2233 snapshot
2234 .edited_ranges_for_transaction::<usize>(transaction)
2235 .collect(),
2236 1,
2237 cx,
2238 ),
2239 );
2240 }
2241 multibuffer.push_transaction(&transaction.0);
2242 multibuffer
2243 });
2244
2245 workspace.update(&mut cx, |workspace, cx| {
2246 let editor = workspace.open_item(MultiBufferItemHandle(excerpt_buffer), cx);
2247 if let Some(editor) = editor.act_as::<Self>(cx) {
2248 editor.update(cx, |editor, cx| {
2249 let settings = (editor.build_settings)(cx);
2250 editor.highlight_ranges::<Self>(
2251 ranges_to_highlight,
2252 settings.style.highlighted_line_background,
2253 cx,
2254 );
2255 });
2256 }
2257 });
2258
2259 Ok(())
2260 }
2261
2262 fn refresh_code_actions(&mut self, cx: &mut ViewContext<Self>) -> Option<()> {
2263 let project = self.project.as_ref()?;
2264 let buffer = self.buffer.read(cx);
2265 let newest_selection = self.newest_anchor_selection().clone();
2266 let (start_buffer, start) = buffer.text_anchor_for_position(newest_selection.start, cx)?;
2267 let (end_buffer, end) = buffer.text_anchor_for_position(newest_selection.end, cx)?;
2268 if start_buffer != end_buffer {
2269 return None;
2270 }
2271
2272 let actions = project.update(cx, |project, cx| {
2273 project.code_actions(&start_buffer, start..end, cx)
2274 });
2275 self.code_actions_task = Some(cx.spawn_weak(|this, mut cx| async move {
2276 let actions = actions.await;
2277 if let Some(this) = this.upgrade(&cx) {
2278 this.update(&mut cx, |this, cx| {
2279 this.available_code_actions = actions.log_err().and_then(|actions| {
2280 if actions.is_empty() {
2281 None
2282 } else {
2283 Some((start_buffer, actions.into()))
2284 }
2285 });
2286 cx.notify();
2287 })
2288 }
2289 }));
2290 None
2291 }
2292
2293 pub fn render_code_actions_indicator(&self, cx: &mut ViewContext<Self>) -> Option<ElementBox> {
2294 if self.available_code_actions.is_some() {
2295 enum Tag {}
2296 let style = (self.build_settings)(cx).style;
2297 Some(
2298 MouseEventHandler::new::<Tag, _, _>(0, cx, |_, _| {
2299 Svg::new("icons/zap.svg")
2300 .with_color(style.code_actions_indicator)
2301 .boxed()
2302 })
2303 .with_cursor_style(CursorStyle::PointingHand)
2304 .with_padding(Padding::uniform(3.))
2305 .on_mouse_down(|cx| {
2306 cx.dispatch_action(ToggleCodeActions(true));
2307 })
2308 .boxed(),
2309 )
2310 } else {
2311 None
2312 }
2313 }
2314
2315 pub fn context_menu_visible(&self) -> bool {
2316 self.context_menu
2317 .as_ref()
2318 .map_or(false, |menu| menu.visible())
2319 }
2320
2321 pub fn render_context_menu(
2322 &self,
2323 cursor_position: DisplayPoint,
2324 cx: &AppContext,
2325 ) -> Option<(DisplayPoint, ElementBox)> {
2326 self.context_menu
2327 .as_ref()
2328 .map(|menu| menu.render(cursor_position, self.build_settings.clone(), cx))
2329 }
2330
2331 fn show_context_menu(&mut self, menu: ContextMenu, cx: &mut ViewContext<Self>) {
2332 if !matches!(menu, ContextMenu::Completions(_)) {
2333 self.completion_tasks.clear();
2334 }
2335 self.context_menu = Some(menu);
2336 cx.notify();
2337 }
2338
2339 fn hide_context_menu(&mut self, cx: &mut ViewContext<Self>) -> Option<ContextMenu> {
2340 cx.notify();
2341 self.completion_tasks.clear();
2342 self.context_menu.take()
2343 }
2344
2345 pub fn insert_snippet(
2346 &mut self,
2347 insertion_ranges: &[Range<usize>],
2348 snippet: Snippet,
2349 cx: &mut ViewContext<Self>,
2350 ) -> Result<()> {
2351 let tabstops = self.buffer.update(cx, |buffer, cx| {
2352 buffer.edit_with_autoindent(insertion_ranges.iter().cloned(), &snippet.text, cx);
2353
2354 let snapshot = &*buffer.read(cx);
2355 let snippet = &snippet;
2356 snippet
2357 .tabstops
2358 .iter()
2359 .map(|tabstop| {
2360 let mut tabstop_ranges = tabstop
2361 .iter()
2362 .flat_map(|tabstop_range| {
2363 let mut delta = 0 as isize;
2364 insertion_ranges.iter().map(move |insertion_range| {
2365 let insertion_start = insertion_range.start as isize + delta;
2366 delta +=
2367 snippet.text.len() as isize - insertion_range.len() as isize;
2368
2369 let start = snapshot.anchor_before(
2370 (insertion_start + tabstop_range.start) as usize,
2371 );
2372 let end = snapshot
2373 .anchor_after((insertion_start + tabstop_range.end) as usize);
2374 start..end
2375 })
2376 })
2377 .collect::<Vec<_>>();
2378 tabstop_ranges
2379 .sort_unstable_by(|a, b| a.start.cmp(&b.start, snapshot).unwrap());
2380 tabstop_ranges
2381 })
2382 .collect::<Vec<_>>()
2383 });
2384
2385 if let Some(tabstop) = tabstops.first() {
2386 self.select_ranges(tabstop.iter().cloned(), Some(Autoscroll::Fit), cx);
2387 self.snippet_stack.push(SnippetState {
2388 active_index: 0,
2389 ranges: tabstops,
2390 });
2391 }
2392
2393 Ok(())
2394 }
2395
2396 pub fn move_to_next_snippet_tabstop(&mut self, cx: &mut ViewContext<Self>) -> bool {
2397 self.move_to_snippet_tabstop(Bias::Right, cx)
2398 }
2399
2400 pub fn move_to_prev_snippet_tabstop(&mut self, cx: &mut ViewContext<Self>) {
2401 self.move_to_snippet_tabstop(Bias::Left, cx);
2402 }
2403
2404 pub fn move_to_snippet_tabstop(&mut self, bias: Bias, cx: &mut ViewContext<Self>) -> bool {
2405 let buffer = self.buffer.read(cx).snapshot(cx);
2406
2407 if let Some(snippet) = self.snippet_stack.last_mut() {
2408 match bias {
2409 Bias::Left => {
2410 if snippet.active_index > 0 {
2411 snippet.active_index -= 1;
2412 } else {
2413 return false;
2414 }
2415 }
2416 Bias::Right => {
2417 if snippet.active_index + 1 < snippet.ranges.len() {
2418 snippet.active_index += 1;
2419 } else {
2420 return false;
2421 }
2422 }
2423 }
2424 if let Some(current_ranges) = snippet.ranges.get(snippet.active_index) {
2425 let new_selections = current_ranges
2426 .iter()
2427 .map(|new_range| {
2428 let new_range = new_range.to_offset(&buffer);
2429 Selection {
2430 id: post_inc(&mut self.next_selection_id),
2431 start: new_range.start,
2432 end: new_range.end,
2433 reversed: false,
2434 goal: SelectionGoal::None,
2435 }
2436 })
2437 .collect();
2438
2439 // Remove the snippet state when moving to the last tabstop.
2440 if snippet.active_index + 1 == snippet.ranges.len() {
2441 self.snippet_stack.pop();
2442 }
2443
2444 self.update_selections(new_selections, Some(Autoscroll::Fit), cx);
2445 return true;
2446 }
2447 self.snippet_stack.pop();
2448 }
2449
2450 false
2451 }
2452
2453 pub fn clear(&mut self, cx: &mut ViewContext<Self>) {
2454 self.start_transaction(cx);
2455 self.select_all(&SelectAll, cx);
2456 self.insert("", cx);
2457 self.end_transaction(cx);
2458 }
2459
2460 pub fn backspace(&mut self, _: &Backspace, cx: &mut ViewContext<Self>) {
2461 self.start_transaction(cx);
2462 let mut selections = self.local_selections::<Point>(cx);
2463 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
2464 for selection in &mut selections {
2465 if selection.is_empty() {
2466 let head = selection.head().to_display_point(&display_map);
2467 let cursor = movement::left(&display_map, head)
2468 .unwrap()
2469 .to_point(&display_map);
2470 selection.set_head(cursor);
2471 selection.goal = SelectionGoal::None;
2472 }
2473 }
2474 self.update_selections(selections, Some(Autoscroll::Fit), cx);
2475 self.insert("", cx);
2476 self.end_transaction(cx);
2477 }
2478
2479 pub fn delete(&mut self, _: &Delete, cx: &mut ViewContext<Self>) {
2480 self.start_transaction(cx);
2481 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
2482 let mut selections = self.local_selections::<Point>(cx);
2483 for selection in &mut selections {
2484 if selection.is_empty() {
2485 let head = selection.head().to_display_point(&display_map);
2486 let cursor = movement::right(&display_map, head)
2487 .unwrap()
2488 .to_point(&display_map);
2489 selection.set_head(cursor);
2490 selection.goal = SelectionGoal::None;
2491 }
2492 }
2493 self.update_selections(selections, Some(Autoscroll::Fit), cx);
2494 self.insert(&"", cx);
2495 self.end_transaction(cx);
2496 }
2497
2498 pub fn tab(&mut self, _: &Tab, cx: &mut ViewContext<Self>) {
2499 if self.move_to_next_snippet_tabstop(cx) {
2500 return;
2501 }
2502
2503 self.start_transaction(cx);
2504 let tab_size = (self.build_settings)(cx).tab_size;
2505 let mut selections = self.local_selections::<Point>(cx);
2506 let mut last_indent = None;
2507 self.buffer.update(cx, |buffer, cx| {
2508 for selection in &mut selections {
2509 if selection.is_empty() {
2510 let char_column = buffer
2511 .read(cx)
2512 .text_for_range(Point::new(selection.start.row, 0)..selection.start)
2513 .flat_map(str::chars)
2514 .count();
2515 let chars_to_next_tab_stop = tab_size - (char_column % tab_size);
2516 buffer.edit(
2517 [selection.start..selection.start],
2518 " ".repeat(chars_to_next_tab_stop),
2519 cx,
2520 );
2521 selection.start.column += chars_to_next_tab_stop as u32;
2522 selection.end = selection.start;
2523 } else {
2524 let mut start_row = selection.start.row;
2525 let mut end_row = selection.end.row + 1;
2526
2527 // If a selection ends at the beginning of a line, don't indent
2528 // that last line.
2529 if selection.end.column == 0 {
2530 end_row -= 1;
2531 }
2532
2533 // Avoid re-indenting a row that has already been indented by a
2534 // previous selection, but still update this selection's column
2535 // to reflect that indentation.
2536 if let Some((last_indent_row, last_indent_len)) = last_indent {
2537 if last_indent_row == selection.start.row {
2538 selection.start.column += last_indent_len;
2539 start_row += 1;
2540 }
2541 if last_indent_row == selection.end.row {
2542 selection.end.column += last_indent_len;
2543 }
2544 }
2545
2546 for row in start_row..end_row {
2547 let indent_column = buffer.read(cx).indent_column_for_line(row) as usize;
2548 let columns_to_next_tab_stop = tab_size - (indent_column % tab_size);
2549 let row_start = Point::new(row, 0);
2550 buffer.edit(
2551 [row_start..row_start],
2552 " ".repeat(columns_to_next_tab_stop),
2553 cx,
2554 );
2555
2556 // Update this selection's endpoints to reflect the indentation.
2557 if row == selection.start.row {
2558 selection.start.column += columns_to_next_tab_stop as u32;
2559 }
2560 if row == selection.end.row {
2561 selection.end.column += columns_to_next_tab_stop as u32;
2562 }
2563
2564 last_indent = Some((row, columns_to_next_tab_stop as u32));
2565 }
2566 }
2567 }
2568 });
2569
2570 self.update_selections(selections, Some(Autoscroll::Fit), cx);
2571 self.end_transaction(cx);
2572 }
2573
2574 pub fn outdent(&mut self, _: &Outdent, cx: &mut ViewContext<Self>) {
2575 if !self.snippet_stack.is_empty() {
2576 self.move_to_prev_snippet_tabstop(cx);
2577 return;
2578 }
2579
2580 self.start_transaction(cx);
2581 let tab_size = (self.build_settings)(cx).tab_size;
2582 let selections = self.local_selections::<Point>(cx);
2583 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
2584 let mut deletion_ranges = Vec::new();
2585 let mut last_outdent = None;
2586 {
2587 let buffer = self.buffer.read(cx).read(cx);
2588 for selection in &selections {
2589 let mut rows = selection.spanned_rows(false, &display_map);
2590
2591 // Avoid re-outdenting a row that has already been outdented by a
2592 // previous selection.
2593 if let Some(last_row) = last_outdent {
2594 if last_row == rows.start {
2595 rows.start += 1;
2596 }
2597 }
2598
2599 for row in rows {
2600 let column = buffer.indent_column_for_line(row) as usize;
2601 if column > 0 {
2602 let mut deletion_len = (column % tab_size) as u32;
2603 if deletion_len == 0 {
2604 deletion_len = tab_size as u32;
2605 }
2606 deletion_ranges.push(Point::new(row, 0)..Point::new(row, deletion_len));
2607 last_outdent = Some(row);
2608 }
2609 }
2610 }
2611 }
2612 self.buffer.update(cx, |buffer, cx| {
2613 buffer.edit(deletion_ranges, "", cx);
2614 });
2615
2616 self.update_selections(
2617 self.local_selections::<usize>(cx),
2618 Some(Autoscroll::Fit),
2619 cx,
2620 );
2621 self.end_transaction(cx);
2622 }
2623
2624 pub fn delete_line(&mut self, _: &DeleteLine, cx: &mut ViewContext<Self>) {
2625 self.start_transaction(cx);
2626
2627 let selections = self.local_selections::<Point>(cx);
2628 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
2629 let buffer = self.buffer.read(cx).snapshot(cx);
2630
2631 let mut new_cursors = Vec::new();
2632 let mut edit_ranges = Vec::new();
2633 let mut selections = selections.iter().peekable();
2634 while let Some(selection) = selections.next() {
2635 let mut rows = selection.spanned_rows(false, &display_map);
2636 let goal_display_column = selection.head().to_display_point(&display_map).column();
2637
2638 // Accumulate contiguous regions of rows that we want to delete.
2639 while let Some(next_selection) = selections.peek() {
2640 let next_rows = next_selection.spanned_rows(false, &display_map);
2641 if next_rows.start <= rows.end {
2642 rows.end = next_rows.end;
2643 selections.next().unwrap();
2644 } else {
2645 break;
2646 }
2647 }
2648
2649 let mut edit_start = Point::new(rows.start, 0).to_offset(&buffer);
2650 let edit_end;
2651 let cursor_buffer_row;
2652 if buffer.max_point().row >= rows.end {
2653 // If there's a line after the range, delete the \n from the end of the row range
2654 // and position the cursor on the next line.
2655 edit_end = Point::new(rows.end, 0).to_offset(&buffer);
2656 cursor_buffer_row = rows.end;
2657 } else {
2658 // If there isn't a line after the range, delete the \n from the line before the
2659 // start of the row range and position the cursor there.
2660 edit_start = edit_start.saturating_sub(1);
2661 edit_end = buffer.len();
2662 cursor_buffer_row = rows.start.saturating_sub(1);
2663 }
2664
2665 let mut cursor = Point::new(cursor_buffer_row, 0).to_display_point(&display_map);
2666 *cursor.column_mut() =
2667 cmp::min(goal_display_column, display_map.line_len(cursor.row()));
2668
2669 new_cursors.push((
2670 selection.id,
2671 buffer.anchor_after(cursor.to_point(&display_map)),
2672 ));
2673 edit_ranges.push(edit_start..edit_end);
2674 }
2675
2676 let buffer = self.buffer.update(cx, |buffer, cx| {
2677 buffer.edit(edit_ranges, "", cx);
2678 buffer.snapshot(cx)
2679 });
2680 let new_selections = new_cursors
2681 .into_iter()
2682 .map(|(id, cursor)| {
2683 let cursor = cursor.to_point(&buffer);
2684 Selection {
2685 id,
2686 start: cursor,
2687 end: cursor,
2688 reversed: false,
2689 goal: SelectionGoal::None,
2690 }
2691 })
2692 .collect();
2693 self.update_selections(new_selections, Some(Autoscroll::Fit), cx);
2694 self.end_transaction(cx);
2695 }
2696
2697 pub fn duplicate_line(&mut self, _: &DuplicateLine, cx: &mut ViewContext<Self>) {
2698 self.start_transaction(cx);
2699
2700 let selections = self.local_selections::<Point>(cx);
2701 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
2702 let buffer = &display_map.buffer_snapshot;
2703
2704 let mut edits = Vec::new();
2705 let mut selections_iter = selections.iter().peekable();
2706 while let Some(selection) = selections_iter.next() {
2707 // Avoid duplicating the same lines twice.
2708 let mut rows = selection.spanned_rows(false, &display_map);
2709
2710 while let Some(next_selection) = selections_iter.peek() {
2711 let next_rows = next_selection.spanned_rows(false, &display_map);
2712 if next_rows.start <= rows.end - 1 {
2713 rows.end = next_rows.end;
2714 selections_iter.next().unwrap();
2715 } else {
2716 break;
2717 }
2718 }
2719
2720 // Copy the text from the selected row region and splice it at the start of the region.
2721 let start = Point::new(rows.start, 0);
2722 let end = Point::new(rows.end - 1, buffer.line_len(rows.end - 1));
2723 let text = buffer
2724 .text_for_range(start..end)
2725 .chain(Some("\n"))
2726 .collect::<String>();
2727 edits.push((start, text, rows.len() as u32));
2728 }
2729
2730 self.buffer.update(cx, |buffer, cx| {
2731 for (point, text, _) in edits.into_iter().rev() {
2732 buffer.edit(Some(point..point), text, cx);
2733 }
2734 });
2735
2736 self.request_autoscroll(Autoscroll::Fit, cx);
2737 self.end_transaction(cx);
2738 }
2739
2740 pub fn move_line_up(&mut self, _: &MoveLineUp, cx: &mut ViewContext<Self>) {
2741 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
2742 let buffer = self.buffer.read(cx).snapshot(cx);
2743
2744 let mut edits = Vec::new();
2745 let mut unfold_ranges = Vec::new();
2746 let mut refold_ranges = Vec::new();
2747
2748 let selections = self.local_selections::<Point>(cx);
2749 let mut selections = selections.iter().peekable();
2750 let mut contiguous_row_selections = Vec::new();
2751 let mut new_selections = Vec::new();
2752
2753 while let Some(selection) = selections.next() {
2754 // Find all the selections that span a contiguous row range
2755 contiguous_row_selections.push(selection.clone());
2756 let start_row = selection.start.row;
2757 let mut end_row = if selection.end.column > 0 || selection.is_empty() {
2758 display_map.next_line_boundary(selection.end).0.row + 1
2759 } else {
2760 selection.end.row
2761 };
2762
2763 while let Some(next_selection) = selections.peek() {
2764 if next_selection.start.row <= end_row {
2765 end_row = if next_selection.end.column > 0 || next_selection.is_empty() {
2766 display_map.next_line_boundary(next_selection.end).0.row + 1
2767 } else {
2768 next_selection.end.row
2769 };
2770 contiguous_row_selections.push(selections.next().unwrap().clone());
2771 } else {
2772 break;
2773 }
2774 }
2775
2776 // Move the text spanned by the row range to be before the line preceding the row range
2777 if start_row > 0 {
2778 let range_to_move = Point::new(start_row - 1, buffer.line_len(start_row - 1))
2779 ..Point::new(end_row - 1, buffer.line_len(end_row - 1));
2780 let insertion_point = display_map
2781 .prev_line_boundary(Point::new(start_row - 1, 0))
2782 .0;
2783
2784 // Don't move lines across excerpts
2785 if buffer
2786 .excerpt_boundaries_in_range((
2787 Bound::Excluded(insertion_point),
2788 Bound::Included(range_to_move.end),
2789 ))
2790 .next()
2791 .is_none()
2792 {
2793 let text = buffer
2794 .text_for_range(range_to_move.clone())
2795 .flat_map(|s| s.chars())
2796 .skip(1)
2797 .chain(['\n'])
2798 .collect::<String>();
2799
2800 edits.push((
2801 buffer.anchor_after(range_to_move.start)
2802 ..buffer.anchor_before(range_to_move.end),
2803 String::new(),
2804 ));
2805 let insertion_anchor = buffer.anchor_after(insertion_point);
2806 edits.push((insertion_anchor.clone()..insertion_anchor, text));
2807
2808 let row_delta = range_to_move.start.row - insertion_point.row + 1;
2809
2810 // Move selections up
2811 new_selections.extend(contiguous_row_selections.drain(..).map(
2812 |mut selection| {
2813 selection.start.row -= row_delta;
2814 selection.end.row -= row_delta;
2815 selection
2816 },
2817 ));
2818
2819 // Move folds up
2820 unfold_ranges.push(range_to_move.clone());
2821 for fold in display_map.folds_in_range(
2822 buffer.anchor_before(range_to_move.start)
2823 ..buffer.anchor_after(range_to_move.end),
2824 ) {
2825 let mut start = fold.start.to_point(&buffer);
2826 let mut end = fold.end.to_point(&buffer);
2827 start.row -= row_delta;
2828 end.row -= row_delta;
2829 refold_ranges.push(start..end);
2830 }
2831 }
2832 }
2833
2834 // If we didn't move line(s), preserve the existing selections
2835 new_selections.extend(contiguous_row_selections.drain(..));
2836 }
2837
2838 self.start_transaction(cx);
2839 self.unfold_ranges(unfold_ranges, cx);
2840 self.buffer.update(cx, |buffer, cx| {
2841 for (range, text) in edits {
2842 buffer.edit([range], text, cx);
2843 }
2844 });
2845 self.fold_ranges(refold_ranges, cx);
2846 self.update_selections(new_selections, Some(Autoscroll::Fit), cx);
2847 self.end_transaction(cx);
2848 }
2849
2850 pub fn move_line_down(&mut self, _: &MoveLineDown, cx: &mut ViewContext<Self>) {
2851 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
2852 let buffer = self.buffer.read(cx).snapshot(cx);
2853
2854 let mut edits = Vec::new();
2855 let mut unfold_ranges = Vec::new();
2856 let mut refold_ranges = Vec::new();
2857
2858 let selections = self.local_selections::<Point>(cx);
2859 let mut selections = selections.iter().peekable();
2860 let mut contiguous_row_selections = Vec::new();
2861 let mut new_selections = Vec::new();
2862
2863 while let Some(selection) = selections.next() {
2864 // Find all the selections that span a contiguous row range
2865 contiguous_row_selections.push(selection.clone());
2866 let start_row = selection.start.row;
2867 let mut end_row = if selection.end.column > 0 || selection.is_empty() {
2868 display_map.next_line_boundary(selection.end).0.row + 1
2869 } else {
2870 selection.end.row
2871 };
2872
2873 while let Some(next_selection) = selections.peek() {
2874 if next_selection.start.row <= end_row {
2875 end_row = if next_selection.end.column > 0 || next_selection.is_empty() {
2876 display_map.next_line_boundary(next_selection.end).0.row + 1
2877 } else {
2878 next_selection.end.row
2879 };
2880 contiguous_row_selections.push(selections.next().unwrap().clone());
2881 } else {
2882 break;
2883 }
2884 }
2885
2886 // Move the text spanned by the row range to be after the last line of the row range
2887 if end_row <= buffer.max_point().row {
2888 let range_to_move = Point::new(start_row, 0)..Point::new(end_row, 0);
2889 let insertion_point = display_map.next_line_boundary(Point::new(end_row, 0)).0;
2890
2891 // Don't move lines across excerpt boundaries
2892 if buffer
2893 .excerpt_boundaries_in_range((
2894 Bound::Excluded(range_to_move.start),
2895 Bound::Included(insertion_point),
2896 ))
2897 .next()
2898 .is_none()
2899 {
2900 let mut text = String::from("\n");
2901 text.extend(buffer.text_for_range(range_to_move.clone()));
2902 text.pop(); // Drop trailing newline
2903 edits.push((
2904 buffer.anchor_after(range_to_move.start)
2905 ..buffer.anchor_before(range_to_move.end),
2906 String::new(),
2907 ));
2908 let insertion_anchor = buffer.anchor_after(insertion_point);
2909 edits.push((insertion_anchor.clone()..insertion_anchor, text));
2910
2911 let row_delta = insertion_point.row - range_to_move.end.row + 1;
2912
2913 // Move selections down
2914 new_selections.extend(contiguous_row_selections.drain(..).map(
2915 |mut selection| {
2916 selection.start.row += row_delta;
2917 selection.end.row += row_delta;
2918 selection
2919 },
2920 ));
2921
2922 // Move folds down
2923 unfold_ranges.push(range_to_move.clone());
2924 for fold in display_map.folds_in_range(
2925 buffer.anchor_before(range_to_move.start)
2926 ..buffer.anchor_after(range_to_move.end),
2927 ) {
2928 let mut start = fold.start.to_point(&buffer);
2929 let mut end = fold.end.to_point(&buffer);
2930 start.row += row_delta;
2931 end.row += row_delta;
2932 refold_ranges.push(start..end);
2933 }
2934 }
2935 }
2936
2937 // If we didn't move line(s), preserve the existing selections
2938 new_selections.extend(contiguous_row_selections.drain(..));
2939 }
2940
2941 self.start_transaction(cx);
2942 self.unfold_ranges(unfold_ranges, cx);
2943 self.buffer.update(cx, |buffer, cx| {
2944 for (range, text) in edits {
2945 buffer.edit([range], text, cx);
2946 }
2947 });
2948 self.fold_ranges(refold_ranges, cx);
2949 self.update_selections(new_selections, Some(Autoscroll::Fit), cx);
2950 self.end_transaction(cx);
2951 }
2952
2953 pub fn cut(&mut self, _: &Cut, cx: &mut ViewContext<Self>) {
2954 self.start_transaction(cx);
2955 let mut text = String::new();
2956 let mut selections = self.local_selections::<Point>(cx);
2957 let mut clipboard_selections = Vec::with_capacity(selections.len());
2958 {
2959 let buffer = self.buffer.read(cx).read(cx);
2960 let max_point = buffer.max_point();
2961 for selection in &mut selections {
2962 let is_entire_line = selection.is_empty();
2963 if is_entire_line {
2964 selection.start = Point::new(selection.start.row, 0);
2965 selection.end = cmp::min(max_point, Point::new(selection.end.row + 1, 0));
2966 selection.goal = SelectionGoal::None;
2967 }
2968 let mut len = 0;
2969 for chunk in buffer.text_for_range(selection.start..selection.end) {
2970 text.push_str(chunk);
2971 len += chunk.len();
2972 }
2973 clipboard_selections.push(ClipboardSelection {
2974 len,
2975 is_entire_line,
2976 });
2977 }
2978 }
2979 self.update_selections(selections, Some(Autoscroll::Fit), cx);
2980 self.insert("", cx);
2981 self.end_transaction(cx);
2982
2983 cx.as_mut()
2984 .write_to_clipboard(ClipboardItem::new(text).with_metadata(clipboard_selections));
2985 }
2986
2987 pub fn copy(&mut self, _: &Copy, cx: &mut ViewContext<Self>) {
2988 let selections = self.local_selections::<Point>(cx);
2989 let mut text = String::new();
2990 let mut clipboard_selections = Vec::with_capacity(selections.len());
2991 {
2992 let buffer = self.buffer.read(cx).read(cx);
2993 let max_point = buffer.max_point();
2994 for selection in selections.iter() {
2995 let mut start = selection.start;
2996 let mut end = selection.end;
2997 let is_entire_line = selection.is_empty();
2998 if is_entire_line {
2999 start = Point::new(start.row, 0);
3000 end = cmp::min(max_point, Point::new(start.row + 1, 0));
3001 }
3002 let mut len = 0;
3003 for chunk in buffer.text_for_range(start..end) {
3004 text.push_str(chunk);
3005 len += chunk.len();
3006 }
3007 clipboard_selections.push(ClipboardSelection {
3008 len,
3009 is_entire_line,
3010 });
3011 }
3012 }
3013
3014 cx.as_mut()
3015 .write_to_clipboard(ClipboardItem::new(text).with_metadata(clipboard_selections));
3016 }
3017
3018 pub fn paste(&mut self, _: &Paste, cx: &mut ViewContext<Self>) {
3019 if let Some(item) = cx.as_mut().read_from_clipboard() {
3020 let clipboard_text = item.text();
3021 if let Some(mut clipboard_selections) = item.metadata::<Vec<ClipboardSelection>>() {
3022 let mut selections = self.local_selections::<usize>(cx);
3023 let all_selections_were_entire_line =
3024 clipboard_selections.iter().all(|s| s.is_entire_line);
3025 if clipboard_selections.len() != selections.len() {
3026 clipboard_selections.clear();
3027 }
3028
3029 let mut delta = 0_isize;
3030 let mut start_offset = 0;
3031 for (i, selection) in selections.iter_mut().enumerate() {
3032 let to_insert;
3033 let entire_line;
3034 if let Some(clipboard_selection) = clipboard_selections.get(i) {
3035 let end_offset = start_offset + clipboard_selection.len;
3036 to_insert = &clipboard_text[start_offset..end_offset];
3037 entire_line = clipboard_selection.is_entire_line;
3038 start_offset = end_offset
3039 } else {
3040 to_insert = clipboard_text.as_str();
3041 entire_line = all_selections_were_entire_line;
3042 }
3043
3044 selection.start = (selection.start as isize + delta) as usize;
3045 selection.end = (selection.end as isize + delta) as usize;
3046
3047 self.buffer.update(cx, |buffer, cx| {
3048 // If the corresponding selection was empty when this slice of the
3049 // clipboard text was written, then the entire line containing the
3050 // selection was copied. If this selection is also currently empty,
3051 // then paste the line before the current line of the buffer.
3052 let range = if selection.is_empty() && entire_line {
3053 let column = selection.start.to_point(&buffer.read(cx)).column as usize;
3054 let line_start = selection.start - column;
3055 line_start..line_start
3056 } else {
3057 selection.start..selection.end
3058 };
3059
3060 delta += to_insert.len() as isize - range.len() as isize;
3061 buffer.edit([range], to_insert, cx);
3062 selection.start += to_insert.len();
3063 selection.end = selection.start;
3064 });
3065 }
3066 self.update_selections(selections, Some(Autoscroll::Fit), cx);
3067 } else {
3068 self.insert(clipboard_text, cx);
3069 }
3070 }
3071 }
3072
3073 pub fn undo(&mut self, _: &Undo, cx: &mut ViewContext<Self>) {
3074 if let Some(tx_id) = self.buffer.update(cx, |buffer, cx| buffer.undo(cx)) {
3075 if let Some((selections, _)) = self.selection_history.get(&tx_id).cloned() {
3076 self.set_selections(selections, None, cx);
3077 }
3078 self.request_autoscroll(Autoscroll::Fit, cx);
3079 }
3080 }
3081
3082 pub fn redo(&mut self, _: &Redo, cx: &mut ViewContext<Self>) {
3083 if let Some(tx_id) = self.buffer.update(cx, |buffer, cx| buffer.redo(cx)) {
3084 if let Some((_, Some(selections))) = self.selection_history.get(&tx_id).cloned() {
3085 self.set_selections(selections, None, cx);
3086 }
3087 self.request_autoscroll(Autoscroll::Fit, cx);
3088 }
3089 }
3090
3091 pub fn move_left(&mut self, _: &MoveLeft, cx: &mut ViewContext<Self>) {
3092 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
3093 let mut selections = self.local_selections::<Point>(cx);
3094 for selection in &mut selections {
3095 let start = selection.start.to_display_point(&display_map);
3096 let end = selection.end.to_display_point(&display_map);
3097
3098 if start != end {
3099 selection.end = selection.start.clone();
3100 } else {
3101 let cursor = movement::left(&display_map, start)
3102 .unwrap()
3103 .to_point(&display_map);
3104 selection.start = cursor.clone();
3105 selection.end = cursor;
3106 }
3107 selection.reversed = false;
3108 selection.goal = SelectionGoal::None;
3109 }
3110 self.update_selections(selections, Some(Autoscroll::Fit), cx);
3111 }
3112
3113 pub fn select_left(&mut self, _: &SelectLeft, cx: &mut ViewContext<Self>) {
3114 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
3115 let mut selections = self.local_selections::<Point>(cx);
3116 for selection in &mut selections {
3117 let head = selection.head().to_display_point(&display_map);
3118 let cursor = movement::left(&display_map, head)
3119 .unwrap()
3120 .to_point(&display_map);
3121 selection.set_head(cursor);
3122 selection.goal = SelectionGoal::None;
3123 }
3124 self.update_selections(selections, Some(Autoscroll::Fit), cx);
3125 }
3126
3127 pub fn move_right(&mut self, _: &MoveRight, cx: &mut ViewContext<Self>) {
3128 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
3129 let mut selections = self.local_selections::<Point>(cx);
3130 for selection in &mut selections {
3131 let start = selection.start.to_display_point(&display_map);
3132 let end = selection.end.to_display_point(&display_map);
3133
3134 if start != end {
3135 selection.start = selection.end.clone();
3136 } else {
3137 let cursor = movement::right(&display_map, end)
3138 .unwrap()
3139 .to_point(&display_map);
3140 selection.start = cursor;
3141 selection.end = cursor;
3142 }
3143 selection.reversed = false;
3144 selection.goal = SelectionGoal::None;
3145 }
3146 self.update_selections(selections, Some(Autoscroll::Fit), cx);
3147 }
3148
3149 pub fn select_right(&mut self, _: &SelectRight, cx: &mut ViewContext<Self>) {
3150 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
3151 let mut selections = self.local_selections::<Point>(cx);
3152 for selection in &mut selections {
3153 let head = selection.head().to_display_point(&display_map);
3154 let cursor = movement::right(&display_map, head)
3155 .unwrap()
3156 .to_point(&display_map);
3157 selection.set_head(cursor);
3158 selection.goal = SelectionGoal::None;
3159 }
3160 self.update_selections(selections, Some(Autoscroll::Fit), cx);
3161 }
3162
3163 pub fn move_up(&mut self, _: &MoveUp, cx: &mut ViewContext<Self>) {
3164 if let Some(context_menu) = self.context_menu.as_mut() {
3165 if context_menu.select_prev(cx) {
3166 return;
3167 }
3168 }
3169
3170 if matches!(self.mode, EditorMode::SingleLine) {
3171 cx.propagate_action();
3172 return;
3173 }
3174
3175 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
3176 let mut selections = self.local_selections::<Point>(cx);
3177 for selection in &mut selections {
3178 let start = selection.start.to_display_point(&display_map);
3179 let end = selection.end.to_display_point(&display_map);
3180 if start != end {
3181 selection.goal = SelectionGoal::None;
3182 }
3183
3184 let (start, goal) = movement::up(&display_map, start, selection.goal).unwrap();
3185 let cursor = start.to_point(&display_map);
3186 selection.start = cursor;
3187 selection.end = cursor;
3188 selection.goal = goal;
3189 selection.reversed = false;
3190 }
3191 self.update_selections(selections, Some(Autoscroll::Fit), cx);
3192 }
3193
3194 pub fn select_up(&mut self, _: &SelectUp, cx: &mut ViewContext<Self>) {
3195 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
3196 let mut selections = self.local_selections::<Point>(cx);
3197 for selection in &mut selections {
3198 let head = selection.head().to_display_point(&display_map);
3199 let (head, goal) = movement::up(&display_map, head, selection.goal).unwrap();
3200 let cursor = head.to_point(&display_map);
3201 selection.set_head(cursor);
3202 selection.goal = goal;
3203 }
3204 self.update_selections(selections, Some(Autoscroll::Fit), cx);
3205 }
3206
3207 pub fn move_down(&mut self, _: &MoveDown, cx: &mut ViewContext<Self>) {
3208 if let Some(context_menu) = self.context_menu.as_mut() {
3209 if context_menu.select_next(cx) {
3210 return;
3211 }
3212 }
3213
3214 if matches!(self.mode, EditorMode::SingleLine) {
3215 cx.propagate_action();
3216 return;
3217 }
3218
3219 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
3220 let mut selections = self.local_selections::<Point>(cx);
3221 for selection in &mut selections {
3222 let start = selection.start.to_display_point(&display_map);
3223 let end = selection.end.to_display_point(&display_map);
3224 if start != end {
3225 selection.goal = SelectionGoal::None;
3226 }
3227
3228 let (start, goal) = movement::down(&display_map, end, selection.goal).unwrap();
3229 let cursor = start.to_point(&display_map);
3230 selection.start = cursor;
3231 selection.end = cursor;
3232 selection.goal = goal;
3233 selection.reversed = false;
3234 }
3235 self.update_selections(selections, Some(Autoscroll::Fit), cx);
3236 }
3237
3238 pub fn select_down(&mut self, _: &SelectDown, cx: &mut ViewContext<Self>) {
3239 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
3240 let mut selections = self.local_selections::<Point>(cx);
3241 for selection in &mut selections {
3242 let head = selection.head().to_display_point(&display_map);
3243 let (head, goal) = movement::down(&display_map, head, selection.goal).unwrap();
3244 let cursor = head.to_point(&display_map);
3245 selection.set_head(cursor);
3246 selection.goal = goal;
3247 }
3248 self.update_selections(selections, Some(Autoscroll::Fit), cx);
3249 }
3250
3251 pub fn move_to_previous_word_boundary(
3252 &mut self,
3253 _: &MoveToPreviousWordBoundary,
3254 cx: &mut ViewContext<Self>,
3255 ) {
3256 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
3257 let mut selections = self.local_selections::<Point>(cx);
3258 for selection in &mut selections {
3259 let head = selection.head().to_display_point(&display_map);
3260 let cursor = movement::prev_word_boundary(&display_map, head).to_point(&display_map);
3261 selection.start = cursor.clone();
3262 selection.end = cursor;
3263 selection.reversed = false;
3264 selection.goal = SelectionGoal::None;
3265 }
3266 self.update_selections(selections, Some(Autoscroll::Fit), cx);
3267 }
3268
3269 pub fn select_to_previous_word_boundary(
3270 &mut self,
3271 _: &SelectToPreviousWordBoundary,
3272 cx: &mut ViewContext<Self>,
3273 ) {
3274 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
3275 let mut selections = self.local_selections::<Point>(cx);
3276 for selection in &mut selections {
3277 let head = selection.head().to_display_point(&display_map);
3278 let cursor = movement::prev_word_boundary(&display_map, head).to_point(&display_map);
3279 selection.set_head(cursor);
3280 selection.goal = SelectionGoal::None;
3281 }
3282 self.update_selections(selections, Some(Autoscroll::Fit), cx);
3283 }
3284
3285 pub fn delete_to_previous_word_boundary(
3286 &mut self,
3287 _: &DeleteToPreviousWordBoundary,
3288 cx: &mut ViewContext<Self>,
3289 ) {
3290 self.start_transaction(cx);
3291 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
3292 let mut selections = self.local_selections::<Point>(cx);
3293 for selection in &mut selections {
3294 if selection.is_empty() {
3295 let head = selection.head().to_display_point(&display_map);
3296 let cursor =
3297 movement::prev_word_boundary(&display_map, head).to_point(&display_map);
3298 selection.set_head(cursor);
3299 selection.goal = SelectionGoal::None;
3300 }
3301 }
3302 self.update_selections(selections, Some(Autoscroll::Fit), cx);
3303 self.insert("", cx);
3304 self.end_transaction(cx);
3305 }
3306
3307 pub fn move_to_next_word_boundary(
3308 &mut self,
3309 _: &MoveToNextWordBoundary,
3310 cx: &mut ViewContext<Self>,
3311 ) {
3312 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
3313 let mut selections = self.local_selections::<Point>(cx);
3314 for selection in &mut selections {
3315 let head = selection.head().to_display_point(&display_map);
3316 let cursor = movement::next_word_boundary(&display_map, head).to_point(&display_map);
3317 selection.start = cursor;
3318 selection.end = cursor;
3319 selection.reversed = false;
3320 selection.goal = SelectionGoal::None;
3321 }
3322 self.update_selections(selections, Some(Autoscroll::Fit), cx);
3323 }
3324
3325 pub fn select_to_next_word_boundary(
3326 &mut self,
3327 _: &SelectToNextWordBoundary,
3328 cx: &mut ViewContext<Self>,
3329 ) {
3330 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
3331 let mut selections = self.local_selections::<Point>(cx);
3332 for selection in &mut selections {
3333 let head = selection.head().to_display_point(&display_map);
3334 let cursor = movement::next_word_boundary(&display_map, head).to_point(&display_map);
3335 selection.set_head(cursor);
3336 selection.goal = SelectionGoal::None;
3337 }
3338 self.update_selections(selections, Some(Autoscroll::Fit), cx);
3339 }
3340
3341 pub fn delete_to_next_word_boundary(
3342 &mut self,
3343 _: &DeleteToNextWordBoundary,
3344 cx: &mut ViewContext<Self>,
3345 ) {
3346 self.start_transaction(cx);
3347 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
3348 let mut selections = self.local_selections::<Point>(cx);
3349 for selection in &mut selections {
3350 if selection.is_empty() {
3351 let head = selection.head().to_display_point(&display_map);
3352 let cursor =
3353 movement::next_word_boundary(&display_map, head).to_point(&display_map);
3354 selection.set_head(cursor);
3355 selection.goal = SelectionGoal::None;
3356 }
3357 }
3358 self.update_selections(selections, Some(Autoscroll::Fit), cx);
3359 self.insert("", cx);
3360 self.end_transaction(cx);
3361 }
3362
3363 pub fn move_to_beginning_of_line(
3364 &mut self,
3365 _: &MoveToBeginningOfLine,
3366 cx: &mut ViewContext<Self>,
3367 ) {
3368 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
3369 let mut selections = self.local_selections::<Point>(cx);
3370 for selection in &mut selections {
3371 let head = selection.head().to_display_point(&display_map);
3372 let new_head = movement::line_beginning(&display_map, head, true);
3373 let cursor = new_head.to_point(&display_map);
3374 selection.start = cursor;
3375 selection.end = cursor;
3376 selection.reversed = false;
3377 selection.goal = SelectionGoal::None;
3378 }
3379 self.update_selections(selections, Some(Autoscroll::Fit), cx);
3380 }
3381
3382 pub fn select_to_beginning_of_line(
3383 &mut self,
3384 SelectToBeginningOfLine(stop_at_soft_boundaries): &SelectToBeginningOfLine,
3385 cx: &mut ViewContext<Self>,
3386 ) {
3387 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
3388 let mut selections = self.local_selections::<Point>(cx);
3389 for selection in &mut selections {
3390 let head = selection.head().to_display_point(&display_map);
3391 let new_head = movement::line_beginning(&display_map, head, *stop_at_soft_boundaries);
3392 selection.set_head(new_head.to_point(&display_map));
3393 selection.goal = SelectionGoal::None;
3394 }
3395 self.update_selections(selections, Some(Autoscroll::Fit), cx);
3396 }
3397
3398 pub fn delete_to_beginning_of_line(
3399 &mut self,
3400 _: &DeleteToBeginningOfLine,
3401 cx: &mut ViewContext<Self>,
3402 ) {
3403 self.start_transaction(cx);
3404 self.select_to_beginning_of_line(&SelectToBeginningOfLine(false), cx);
3405 self.backspace(&Backspace, cx);
3406 self.end_transaction(cx);
3407 }
3408
3409 pub fn move_to_end_of_line(&mut self, _: &MoveToEndOfLine, cx: &mut ViewContext<Self>) {
3410 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
3411 let mut selections = self.local_selections::<Point>(cx);
3412 {
3413 for selection in &mut selections {
3414 let head = selection.head().to_display_point(&display_map);
3415 let new_head = movement::line_end(&display_map, head, true);
3416 let anchor = new_head.to_point(&display_map);
3417 selection.start = anchor.clone();
3418 selection.end = anchor;
3419 selection.reversed = false;
3420 selection.goal = SelectionGoal::None;
3421 }
3422 }
3423 self.update_selections(selections, Some(Autoscroll::Fit), cx);
3424 }
3425
3426 pub fn select_to_end_of_line(
3427 &mut self,
3428 SelectToEndOfLine(stop_at_soft_boundaries): &SelectToEndOfLine,
3429 cx: &mut ViewContext<Self>,
3430 ) {
3431 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
3432 let mut selections = self.local_selections::<Point>(cx);
3433 for selection in &mut selections {
3434 let head = selection.head().to_display_point(&display_map);
3435 let new_head = movement::line_end(&display_map, head, *stop_at_soft_boundaries);
3436 selection.set_head(new_head.to_point(&display_map));
3437 selection.goal = SelectionGoal::None;
3438 }
3439 self.update_selections(selections, Some(Autoscroll::Fit), cx);
3440 }
3441
3442 pub fn delete_to_end_of_line(&mut self, _: &DeleteToEndOfLine, cx: &mut ViewContext<Self>) {
3443 self.start_transaction(cx);
3444 self.select_to_end_of_line(&SelectToEndOfLine(false), cx);
3445 self.delete(&Delete, cx);
3446 self.end_transaction(cx);
3447 }
3448
3449 pub fn cut_to_end_of_line(&mut self, _: &CutToEndOfLine, cx: &mut ViewContext<Self>) {
3450 self.start_transaction(cx);
3451 self.select_to_end_of_line(&SelectToEndOfLine(false), cx);
3452 self.cut(&Cut, cx);
3453 self.end_transaction(cx);
3454 }
3455
3456 pub fn move_to_beginning(&mut self, _: &MoveToBeginning, cx: &mut ViewContext<Self>) {
3457 if matches!(self.mode, EditorMode::SingleLine) {
3458 cx.propagate_action();
3459 return;
3460 }
3461
3462 let selection = Selection {
3463 id: post_inc(&mut self.next_selection_id),
3464 start: 0,
3465 end: 0,
3466 reversed: false,
3467 goal: SelectionGoal::None,
3468 };
3469 self.update_selections(vec![selection], Some(Autoscroll::Fit), cx);
3470 }
3471
3472 pub fn select_to_beginning(&mut self, _: &SelectToBeginning, cx: &mut ViewContext<Self>) {
3473 let mut selection = self.local_selections::<Point>(cx).last().unwrap().clone();
3474 selection.set_head(Point::zero());
3475 self.update_selections(vec![selection], Some(Autoscroll::Fit), cx);
3476 }
3477
3478 pub fn move_to_end(&mut self, _: &MoveToEnd, cx: &mut ViewContext<Self>) {
3479 if matches!(self.mode, EditorMode::SingleLine) {
3480 cx.propagate_action();
3481 return;
3482 }
3483
3484 let cursor = self.buffer.read(cx).read(cx).len();
3485 let selection = Selection {
3486 id: post_inc(&mut self.next_selection_id),
3487 start: cursor,
3488 end: cursor,
3489 reversed: false,
3490 goal: SelectionGoal::None,
3491 };
3492 self.update_selections(vec![selection], Some(Autoscroll::Fit), cx);
3493 }
3494
3495 pub fn set_nav_history(&mut self, nav_history: Option<ItemNavHistory>) {
3496 self.nav_history = nav_history;
3497 }
3498
3499 pub fn nav_history(&self) -> Option<&ItemNavHistory> {
3500 self.nav_history.as_ref()
3501 }
3502
3503 fn push_to_nav_history(
3504 &self,
3505 position: Anchor,
3506 new_position: Option<Point>,
3507 cx: &mut ViewContext<Self>,
3508 ) {
3509 if let Some(nav_history) = &self.nav_history {
3510 let buffer = self.buffer.read(cx).read(cx);
3511 let offset = position.to_offset(&buffer);
3512 let point = position.to_point(&buffer);
3513 drop(buffer);
3514
3515 if let Some(new_position) = new_position {
3516 let row_delta = (new_position.row as i64 - point.row as i64).abs();
3517 if row_delta < MIN_NAVIGATION_HISTORY_ROW_DELTA {
3518 return;
3519 }
3520 }
3521
3522 nav_history.push(Some(NavigationData {
3523 anchor: position,
3524 offset,
3525 }));
3526 }
3527 }
3528
3529 pub fn select_to_end(&mut self, _: &SelectToEnd, cx: &mut ViewContext<Self>) {
3530 let mut selection = self.local_selections::<usize>(cx).first().unwrap().clone();
3531 selection.set_head(self.buffer.read(cx).read(cx).len());
3532 self.update_selections(vec![selection], Some(Autoscroll::Fit), cx);
3533 }
3534
3535 pub fn select_all(&mut self, _: &SelectAll, cx: &mut ViewContext<Self>) {
3536 let selection = Selection {
3537 id: post_inc(&mut self.next_selection_id),
3538 start: 0,
3539 end: self.buffer.read(cx).read(cx).len(),
3540 reversed: false,
3541 goal: SelectionGoal::None,
3542 };
3543 self.update_selections(vec![selection], None, cx);
3544 }
3545
3546 pub fn select_line(&mut self, _: &SelectLine, cx: &mut ViewContext<Self>) {
3547 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
3548 let mut selections = self.local_selections::<Point>(cx);
3549 let max_point = display_map.buffer_snapshot.max_point();
3550 for selection in &mut selections {
3551 let rows = selection.spanned_rows(true, &display_map);
3552 selection.start = Point::new(rows.start, 0);
3553 selection.end = cmp::min(max_point, Point::new(rows.end, 0));
3554 selection.reversed = false;
3555 }
3556 self.update_selections(selections, Some(Autoscroll::Fit), cx);
3557 }
3558
3559 pub fn split_selection_into_lines(
3560 &mut self,
3561 _: &SplitSelectionIntoLines,
3562 cx: &mut ViewContext<Self>,
3563 ) {
3564 let mut to_unfold = Vec::new();
3565 let mut new_selections = Vec::new();
3566 {
3567 let selections = self.local_selections::<Point>(cx);
3568 let buffer = self.buffer.read(cx).read(cx);
3569 for selection in selections {
3570 for row in selection.start.row..selection.end.row {
3571 let cursor = Point::new(row, buffer.line_len(row));
3572 new_selections.push(Selection {
3573 id: post_inc(&mut self.next_selection_id),
3574 start: cursor,
3575 end: cursor,
3576 reversed: false,
3577 goal: SelectionGoal::None,
3578 });
3579 }
3580 new_selections.push(Selection {
3581 id: selection.id,
3582 start: selection.end,
3583 end: selection.end,
3584 reversed: false,
3585 goal: SelectionGoal::None,
3586 });
3587 to_unfold.push(selection.start..selection.end);
3588 }
3589 }
3590 self.unfold_ranges(to_unfold, cx);
3591 self.update_selections(new_selections, Some(Autoscroll::Fit), cx);
3592 }
3593
3594 pub fn add_selection_above(&mut self, _: &AddSelectionAbove, cx: &mut ViewContext<Self>) {
3595 self.add_selection(true, cx);
3596 }
3597
3598 pub fn add_selection_below(&mut self, _: &AddSelectionBelow, cx: &mut ViewContext<Self>) {
3599 self.add_selection(false, cx);
3600 }
3601
3602 fn add_selection(&mut self, above: bool, cx: &mut ViewContext<Self>) {
3603 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
3604 let mut selections = self.local_selections::<Point>(cx);
3605 let mut state = self.add_selections_state.take().unwrap_or_else(|| {
3606 let oldest_selection = selections.iter().min_by_key(|s| s.id).unwrap().clone();
3607 let range = oldest_selection.display_range(&display_map).sorted();
3608 let columns = cmp::min(range.start.column(), range.end.column())
3609 ..cmp::max(range.start.column(), range.end.column());
3610
3611 selections.clear();
3612 let mut stack = Vec::new();
3613 for row in range.start.row()..=range.end.row() {
3614 if let Some(selection) = self.build_columnar_selection(
3615 &display_map,
3616 row,
3617 &columns,
3618 oldest_selection.reversed,
3619 ) {
3620 stack.push(selection.id);
3621 selections.push(selection);
3622 }
3623 }
3624
3625 if above {
3626 stack.reverse();
3627 }
3628
3629 AddSelectionsState { above, stack }
3630 });
3631
3632 let last_added_selection = *state.stack.last().unwrap();
3633 let mut new_selections = Vec::new();
3634 if above == state.above {
3635 let end_row = if above {
3636 0
3637 } else {
3638 display_map.max_point().row()
3639 };
3640
3641 'outer: for selection in selections {
3642 if selection.id == last_added_selection {
3643 let range = selection.display_range(&display_map).sorted();
3644 debug_assert_eq!(range.start.row(), range.end.row());
3645 let mut row = range.start.row();
3646 let columns = if let SelectionGoal::ColumnRange { start, end } = selection.goal
3647 {
3648 start..end
3649 } else {
3650 cmp::min(range.start.column(), range.end.column())
3651 ..cmp::max(range.start.column(), range.end.column())
3652 };
3653
3654 while row != end_row {
3655 if above {
3656 row -= 1;
3657 } else {
3658 row += 1;
3659 }
3660
3661 if let Some(new_selection) = self.build_columnar_selection(
3662 &display_map,
3663 row,
3664 &columns,
3665 selection.reversed,
3666 ) {
3667 state.stack.push(new_selection.id);
3668 if above {
3669 new_selections.push(new_selection);
3670 new_selections.push(selection);
3671 } else {
3672 new_selections.push(selection);
3673 new_selections.push(new_selection);
3674 }
3675
3676 continue 'outer;
3677 }
3678 }
3679 }
3680
3681 new_selections.push(selection);
3682 }
3683 } else {
3684 new_selections = selections;
3685 new_selections.retain(|s| s.id != last_added_selection);
3686 state.stack.pop();
3687 }
3688
3689 self.update_selections(new_selections, Some(Autoscroll::Fit), cx);
3690 if state.stack.len() > 1 {
3691 self.add_selections_state = Some(state);
3692 }
3693 }
3694
3695 pub fn select_next(&mut self, action: &SelectNext, cx: &mut ViewContext<Self>) {
3696 let replace_newest = action.0;
3697 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
3698 let buffer = &display_map.buffer_snapshot;
3699 let mut selections = self.local_selections::<usize>(cx);
3700 if let Some(mut select_next_state) = self.select_next_state.take() {
3701 let query = &select_next_state.query;
3702 if !select_next_state.done {
3703 let first_selection = selections.iter().min_by_key(|s| s.id).unwrap();
3704 let last_selection = selections.iter().max_by_key(|s| s.id).unwrap();
3705 let mut next_selected_range = None;
3706
3707 let bytes_after_last_selection =
3708 buffer.bytes_in_range(last_selection.end..buffer.len());
3709 let bytes_before_first_selection = buffer.bytes_in_range(0..first_selection.start);
3710 let query_matches = query
3711 .stream_find_iter(bytes_after_last_selection)
3712 .map(|result| (last_selection.end, result))
3713 .chain(
3714 query
3715 .stream_find_iter(bytes_before_first_selection)
3716 .map(|result| (0, result)),
3717 );
3718 for (start_offset, query_match) in query_matches {
3719 let query_match = query_match.unwrap(); // can only fail due to I/O
3720 let offset_range =
3721 start_offset + query_match.start()..start_offset + query_match.end();
3722 let display_range = offset_range.start.to_display_point(&display_map)
3723 ..offset_range.end.to_display_point(&display_map);
3724
3725 if !select_next_state.wordwise
3726 || (!movement::is_inside_word(&display_map, display_range.start)
3727 && !movement::is_inside_word(&display_map, display_range.end))
3728 {
3729 next_selected_range = Some(offset_range);
3730 break;
3731 }
3732 }
3733
3734 if let Some(next_selected_range) = next_selected_range {
3735 if replace_newest {
3736 if let Some(newest_id) =
3737 selections.iter().max_by_key(|s| s.id).map(|s| s.id)
3738 {
3739 selections.retain(|s| s.id != newest_id);
3740 }
3741 }
3742 selections.push(Selection {
3743 id: post_inc(&mut self.next_selection_id),
3744 start: next_selected_range.start,
3745 end: next_selected_range.end,
3746 reversed: false,
3747 goal: SelectionGoal::None,
3748 });
3749 self.update_selections(selections, Some(Autoscroll::Newest), cx);
3750 } else {
3751 select_next_state.done = true;
3752 }
3753 }
3754
3755 self.select_next_state = Some(select_next_state);
3756 } else if selections.len() == 1 {
3757 let selection = selections.last_mut().unwrap();
3758 if selection.start == selection.end {
3759 let word_range = movement::surrounding_word(
3760 &display_map,
3761 selection.start.to_display_point(&display_map),
3762 );
3763 selection.start = word_range.start.to_offset(&display_map, Bias::Left);
3764 selection.end = word_range.end.to_offset(&display_map, Bias::Left);
3765 selection.goal = SelectionGoal::None;
3766 selection.reversed = false;
3767
3768 let query = buffer
3769 .text_for_range(selection.start..selection.end)
3770 .collect::<String>();
3771 let select_state = SelectNextState {
3772 query: AhoCorasick::new_auto_configured(&[query]),
3773 wordwise: true,
3774 done: false,
3775 };
3776 self.update_selections(selections, Some(Autoscroll::Newest), cx);
3777 self.select_next_state = Some(select_state);
3778 } else {
3779 let query = buffer
3780 .text_for_range(selection.start..selection.end)
3781 .collect::<String>();
3782 self.select_next_state = Some(SelectNextState {
3783 query: AhoCorasick::new_auto_configured(&[query]),
3784 wordwise: false,
3785 done: false,
3786 });
3787 self.select_next(action, cx);
3788 }
3789 }
3790 }
3791
3792 pub fn toggle_comments(&mut self, _: &ToggleComments, cx: &mut ViewContext<Self>) {
3793 // Get the line comment prefix. Split its trailing whitespace into a separate string,
3794 // as that portion won't be used for detecting if a line is a comment.
3795 let full_comment_prefix =
3796 if let Some(prefix) = self.language(cx).and_then(|l| l.line_comment_prefix()) {
3797 prefix.to_string()
3798 } else {
3799 return;
3800 };
3801 let comment_prefix = full_comment_prefix.trim_end_matches(' ');
3802 let comment_prefix_whitespace = &full_comment_prefix[comment_prefix.len()..];
3803
3804 self.start_transaction(cx);
3805 let mut selections = self.local_selections::<Point>(cx);
3806 let mut all_selection_lines_are_comments = true;
3807 let mut edit_ranges = Vec::new();
3808 let mut last_toggled_row = None;
3809 self.buffer.update(cx, |buffer, cx| {
3810 for selection in &mut selections {
3811 edit_ranges.clear();
3812 let snapshot = buffer.snapshot(cx);
3813
3814 let end_row =
3815 if selection.end.row > selection.start.row && selection.end.column == 0 {
3816 selection.end.row
3817 } else {
3818 selection.end.row + 1
3819 };
3820
3821 for row in selection.start.row..end_row {
3822 // If multiple selections contain a given row, avoid processing that
3823 // row more than once.
3824 if last_toggled_row == Some(row) {
3825 continue;
3826 } else {
3827 last_toggled_row = Some(row);
3828 }
3829
3830 if snapshot.is_line_blank(row) {
3831 continue;
3832 }
3833
3834 let start = Point::new(row, snapshot.indent_column_for_line(row));
3835 let mut line_bytes = snapshot
3836 .bytes_in_range(start..snapshot.max_point())
3837 .flatten()
3838 .copied();
3839
3840 // If this line currently begins with the line comment prefix, then record
3841 // the range containing the prefix.
3842 if all_selection_lines_are_comments
3843 && line_bytes
3844 .by_ref()
3845 .take(comment_prefix.len())
3846 .eq(comment_prefix.bytes())
3847 {
3848 // Include any whitespace that matches the comment prefix.
3849 let matching_whitespace_len = line_bytes
3850 .zip(comment_prefix_whitespace.bytes())
3851 .take_while(|(a, b)| a == b)
3852 .count() as u32;
3853 let end = Point::new(
3854 row,
3855 start.column + comment_prefix.len() as u32 + matching_whitespace_len,
3856 );
3857 edit_ranges.push(start..end);
3858 }
3859 // If this line does not begin with the line comment prefix, then record
3860 // the position where the prefix should be inserted.
3861 else {
3862 all_selection_lines_are_comments = false;
3863 edit_ranges.push(start..start);
3864 }
3865 }
3866
3867 if !edit_ranges.is_empty() {
3868 if all_selection_lines_are_comments {
3869 buffer.edit(edit_ranges.iter().cloned(), "", cx);
3870 } else {
3871 let min_column = edit_ranges.iter().map(|r| r.start.column).min().unwrap();
3872 let edit_ranges = edit_ranges.iter().map(|range| {
3873 let position = Point::new(range.start.row, min_column);
3874 position..position
3875 });
3876 buffer.edit(edit_ranges, &full_comment_prefix, cx);
3877 }
3878 }
3879 }
3880 });
3881
3882 self.update_selections(
3883 self.local_selections::<usize>(cx),
3884 Some(Autoscroll::Fit),
3885 cx,
3886 );
3887 self.end_transaction(cx);
3888 }
3889
3890 pub fn select_larger_syntax_node(
3891 &mut self,
3892 _: &SelectLargerSyntaxNode,
3893 cx: &mut ViewContext<Self>,
3894 ) {
3895 let old_selections = self.local_selections::<usize>(cx).into_boxed_slice();
3896 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
3897 let buffer = self.buffer.read(cx).snapshot(cx);
3898
3899 let mut stack = mem::take(&mut self.select_larger_syntax_node_stack);
3900 let mut selected_larger_node = false;
3901 let new_selections = old_selections
3902 .iter()
3903 .map(|selection| {
3904 let old_range = selection.start..selection.end;
3905 let mut new_range = old_range.clone();
3906 while let Some(containing_range) =
3907 buffer.range_for_syntax_ancestor(new_range.clone())
3908 {
3909 new_range = containing_range;
3910 if !display_map.intersects_fold(new_range.start)
3911 && !display_map.intersects_fold(new_range.end)
3912 {
3913 break;
3914 }
3915 }
3916
3917 selected_larger_node |= new_range != old_range;
3918 Selection {
3919 id: selection.id,
3920 start: new_range.start,
3921 end: new_range.end,
3922 goal: SelectionGoal::None,
3923 reversed: selection.reversed,
3924 }
3925 })
3926 .collect::<Vec<_>>();
3927
3928 if selected_larger_node {
3929 stack.push(old_selections);
3930 self.update_selections(new_selections, Some(Autoscroll::Fit), cx);
3931 }
3932 self.select_larger_syntax_node_stack = stack;
3933 }
3934
3935 pub fn select_smaller_syntax_node(
3936 &mut self,
3937 _: &SelectSmallerSyntaxNode,
3938 cx: &mut ViewContext<Self>,
3939 ) {
3940 let mut stack = mem::take(&mut self.select_larger_syntax_node_stack);
3941 if let Some(selections) = stack.pop() {
3942 self.update_selections(selections.to_vec(), Some(Autoscroll::Fit), cx);
3943 }
3944 self.select_larger_syntax_node_stack = stack;
3945 }
3946
3947 pub fn move_to_enclosing_bracket(
3948 &mut self,
3949 _: &MoveToEnclosingBracket,
3950 cx: &mut ViewContext<Self>,
3951 ) {
3952 let mut selections = self.local_selections::<usize>(cx);
3953 let buffer = self.buffer.read(cx).snapshot(cx);
3954 for selection in &mut selections {
3955 if let Some((open_range, close_range)) =
3956 buffer.enclosing_bracket_ranges(selection.start..selection.end)
3957 {
3958 let close_range = close_range.to_inclusive();
3959 let destination = if close_range.contains(&selection.start)
3960 && close_range.contains(&selection.end)
3961 {
3962 open_range.end
3963 } else {
3964 *close_range.start()
3965 };
3966 selection.start = destination;
3967 selection.end = destination;
3968 }
3969 }
3970
3971 self.update_selections(selections, Some(Autoscroll::Fit), cx);
3972 }
3973
3974 pub fn show_next_diagnostic(&mut self, _: &ShowNextDiagnostic, cx: &mut ViewContext<Self>) {
3975 let buffer = self.buffer.read(cx).snapshot(cx);
3976 let selection = self.newest_selection::<usize>(&buffer);
3977 let mut active_primary_range = self.active_diagnostics.as_ref().map(|active_diagnostics| {
3978 active_diagnostics
3979 .primary_range
3980 .to_offset(&buffer)
3981 .to_inclusive()
3982 });
3983 let mut search_start = if let Some(active_primary_range) = active_primary_range.as_ref() {
3984 if active_primary_range.contains(&selection.head()) {
3985 *active_primary_range.end()
3986 } else {
3987 selection.head()
3988 }
3989 } else {
3990 selection.head()
3991 };
3992
3993 loop {
3994 let next_group = buffer
3995 .diagnostics_in_range::<_, usize>(search_start..buffer.len())
3996 .find_map(|entry| {
3997 if entry.diagnostic.is_primary
3998 && !entry.range.is_empty()
3999 && Some(entry.range.end) != active_primary_range.as_ref().map(|r| *r.end())
4000 {
4001 Some((entry.range, entry.diagnostic.group_id))
4002 } else {
4003 None
4004 }
4005 });
4006
4007 if let Some((primary_range, group_id)) = next_group {
4008 self.activate_diagnostics(group_id, cx);
4009 self.update_selections(
4010 vec![Selection {
4011 id: selection.id,
4012 start: primary_range.start,
4013 end: primary_range.start,
4014 reversed: false,
4015 goal: SelectionGoal::None,
4016 }],
4017 Some(Autoscroll::Center),
4018 cx,
4019 );
4020 break;
4021 } else if search_start == 0 {
4022 break;
4023 } else {
4024 // Cycle around to the start of the buffer, potentially moving back to the start of
4025 // the currently active diagnostic.
4026 search_start = 0;
4027 active_primary_range.take();
4028 }
4029 }
4030 }
4031
4032 pub fn go_to_definition(
4033 workspace: &mut Workspace,
4034 _: &GoToDefinition,
4035 cx: &mut ViewContext<Workspace>,
4036 ) {
4037 let active_item = workspace.active_item(cx);
4038 let editor_handle = if let Some(editor) = active_item
4039 .as_ref()
4040 .and_then(|item| item.act_as::<Self>(cx))
4041 {
4042 editor
4043 } else {
4044 return;
4045 };
4046
4047 let editor = editor_handle.read(cx);
4048 let buffer = editor.buffer.read(cx);
4049 let head = editor.newest_selection::<usize>(&buffer.read(cx)).head();
4050 let (buffer, head) =
4051 if let Some(text_anchor) = editor.buffer.read(cx).text_anchor_for_position(head, cx) {
4052 text_anchor
4053 } else {
4054 return;
4055 };
4056
4057 let definitions = workspace
4058 .project()
4059 .update(cx, |project, cx| project.definition(&buffer, head, cx));
4060 cx.spawn(|workspace, mut cx| async move {
4061 let definitions = definitions.await?;
4062 workspace.update(&mut cx, |workspace, cx| {
4063 for definition in definitions {
4064 let range = definition
4065 .target_range
4066 .to_offset(definition.target_buffer.read(cx));
4067 let target_editor_handle = workspace
4068 .open_item(BufferItemHandle(definition.target_buffer), cx)
4069 .downcast::<Self>()
4070 .unwrap();
4071
4072 target_editor_handle.update(cx, |target_editor, cx| {
4073 // When selecting a definition in a different buffer, disable the nav history
4074 // to avoid creating a history entry at the previous cursor location.
4075 let disabled_history = if editor_handle == target_editor_handle {
4076 None
4077 } else {
4078 target_editor.nav_history.take()
4079 };
4080 target_editor.select_ranges([range], Some(Autoscroll::Center), cx);
4081 if disabled_history.is_some() {
4082 target_editor.nav_history = disabled_history;
4083 }
4084 });
4085 }
4086 });
4087
4088 Ok::<(), anyhow::Error>(())
4089 })
4090 .detach_and_log_err(cx);
4091 }
4092
4093 pub fn rename(&mut self, _: &Rename, cx: &mut ViewContext<Self>) -> Option<Task<Result<()>>> {
4094 use language::ToOffset as _;
4095
4096 let project = self.project.clone()?;
4097 let position = self.newest_anchor_selection().head();
4098 let (buffer, buffer_position) = self
4099 .buffer
4100 .read(cx)
4101 .text_anchor_for_position(position.clone(), cx)?;
4102 let snapshot = buffer.read(cx).snapshot();
4103 let prepare_rename = project.update(cx, |project, cx| {
4104 project.prepare_rename(buffer.clone(), buffer_position.to_offset(&snapshot), cx)
4105 });
4106
4107 Some(cx.spawn(|this, mut cx| async move {
4108 if let Some(range) = prepare_rename.await? {
4109 let buffer_offset_range = range.to_offset(&snapshot);
4110 let buffer_offset = buffer_position.to_offset(&snapshot);
4111 let lookbehind = buffer_offset.saturating_sub(buffer_offset_range.start);
4112 let lookahead = buffer_offset_range.end.saturating_sub(buffer_offset);
4113
4114 this.update(&mut cx, |this, cx| {
4115 let settings = (this.build_settings)(cx);
4116 let buffer = this.buffer.read(cx).read(cx);
4117 let offset = position.to_offset(&buffer);
4118 let start = offset - lookbehind;
4119 let end = offset + lookahead;
4120 let rename_range = buffer.anchor_before(start)..buffer.anchor_after(end);
4121 drop(buffer);
4122
4123 this.buffer
4124 .update(cx, |buffer, cx| buffer.finalize_last_transaction(cx));
4125 this.pending_rename = Some(RenameState {
4126 range: rename_range.clone(),
4127 first_transaction: None,
4128 });
4129 this.select_ranges([start..end], None, cx);
4130 this.highlight_ranges::<Rename>(
4131 vec![rename_range],
4132 settings.style.highlighted_line_background,
4133 cx,
4134 );
4135 });
4136 }
4137
4138 Ok(())
4139 }))
4140 }
4141
4142 pub fn confirm_rename(
4143 workspace: &mut Workspace,
4144 _: &ConfirmRename,
4145 cx: &mut ViewContext<Workspace>,
4146 ) -> Option<Task<Result<()>>> {
4147 let editor = workspace.active_item(cx)?.act_as::<Editor>(cx)?;
4148
4149 let (buffer, range, new_name) = editor.update(cx, |editor, cx| {
4150 let (range, new_name) = editor.take_rename(cx)?;
4151 let buffer = editor.buffer.read(cx);
4152 let (start_buffer, start) = buffer.text_anchor_for_position(range.start.clone(), cx)?;
4153 let (end_buffer, end) = buffer.text_anchor_for_position(range.end.clone(), cx)?;
4154 if start_buffer == end_buffer {
4155 Some((start_buffer, start..end, new_name))
4156 } else {
4157 None
4158 }
4159 })?;
4160
4161 let rename = workspace.project().clone().update(cx, |project, cx| {
4162 project.perform_rename(
4163 buffer.clone(),
4164 range.start.clone(),
4165 new_name.clone(),
4166 true,
4167 cx,
4168 )
4169 });
4170
4171 let transaction = buffer.update(cx, |buffer, cx| {
4172 buffer.finalize_last_transaction();
4173 buffer.start_transaction();
4174 buffer.edit([range], &new_name, cx);
4175 if buffer.end_transaction(cx).is_some() {
4176 let transaction = buffer.finalize_last_transaction().unwrap().clone();
4177 buffer.forget_transaction(transaction.id);
4178 Some(transaction)
4179 } else {
4180 None
4181 }
4182 });
4183
4184 Some(cx.spawn(|workspace, mut cx| async move {
4185 let project_transaction = rename.await?;
4186 if let Some(transaction) = transaction {
4187 buffer.update(&mut cx, |buffer, cx| {
4188 buffer.push_transaction(transaction, Instant::now());
4189 buffer.undo(cx);
4190 });
4191 }
4192 Self::open_project_transaction(
4193 editor,
4194 workspace,
4195 project_transaction,
4196 format!("Rename: {}", new_name),
4197 cx,
4198 )
4199 .await
4200 }))
4201 }
4202
4203 fn take_rename(&mut self, cx: &mut ViewContext<Self>) -> Option<(Range<Anchor>, String)> {
4204 let rename = self.pending_rename.take()?;
4205 let new_name = self
4206 .buffer
4207 .read(cx)
4208 .read(cx)
4209 .text_for_range(rename.range.clone())
4210 .collect::<String>();
4211
4212 self.clear_highlighted_ranges::<Rename>(cx);
4213 if let Some(transaction_id) = rename.first_transaction {
4214 self.buffer.update(cx, |buffer, cx| {
4215 buffer.undo_to_transaction(transaction_id, false, cx)
4216 });
4217 }
4218
4219 Some((rename.range, new_name))
4220 }
4221
4222 fn invalidate_rename_range(
4223 &mut self,
4224 buffer: &MultiBufferSnapshot,
4225 cx: &mut ViewContext<Self>,
4226 ) {
4227 if let Some(rename) = self.pending_rename.as_ref() {
4228 if self.selections.len() == 1 {
4229 let head = self.selections[0].head().to_offset(buffer);
4230 let range = rename.range.to_offset(buffer).to_inclusive();
4231 if range.contains(&head) {
4232 return;
4233 }
4234 }
4235
4236 self.take_rename(cx);
4237 }
4238 }
4239
4240 fn refresh_active_diagnostics(&mut self, cx: &mut ViewContext<Editor>) {
4241 if let Some(active_diagnostics) = self.active_diagnostics.as_mut() {
4242 let buffer = self.buffer.read(cx).snapshot(cx);
4243 let primary_range_start = active_diagnostics.primary_range.start.to_offset(&buffer);
4244 let is_valid = buffer
4245 .diagnostics_in_range::<_, usize>(active_diagnostics.primary_range.clone())
4246 .any(|entry| {
4247 entry.diagnostic.is_primary
4248 && !entry.range.is_empty()
4249 && entry.range.start == primary_range_start
4250 && entry.diagnostic.message == active_diagnostics.primary_message
4251 });
4252
4253 if is_valid != active_diagnostics.is_valid {
4254 active_diagnostics.is_valid = is_valid;
4255 let mut new_styles = HashMap::default();
4256 for (block_id, diagnostic) in &active_diagnostics.blocks {
4257 new_styles.insert(
4258 *block_id,
4259 diagnostic_block_renderer(
4260 diagnostic.clone(),
4261 is_valid,
4262 self.build_settings.clone(),
4263 ),
4264 );
4265 }
4266 self.display_map
4267 .update(cx, |display_map, _| display_map.replace_blocks(new_styles));
4268 }
4269 }
4270 }
4271
4272 fn activate_diagnostics(&mut self, group_id: usize, cx: &mut ViewContext<Self>) {
4273 self.dismiss_diagnostics(cx);
4274 self.active_diagnostics = self.display_map.update(cx, |display_map, cx| {
4275 let buffer = self.buffer.read(cx).snapshot(cx);
4276
4277 let mut primary_range = None;
4278 let mut primary_message = None;
4279 let mut group_end = Point::zero();
4280 let diagnostic_group = buffer
4281 .diagnostic_group::<Point>(group_id)
4282 .map(|entry| {
4283 if entry.range.end > group_end {
4284 group_end = entry.range.end;
4285 }
4286 if entry.diagnostic.is_primary {
4287 primary_range = Some(entry.range.clone());
4288 primary_message = Some(entry.diagnostic.message.clone());
4289 }
4290 entry
4291 })
4292 .collect::<Vec<_>>();
4293 let primary_range = primary_range.unwrap();
4294 let primary_message = primary_message.unwrap();
4295 let primary_range =
4296 buffer.anchor_after(primary_range.start)..buffer.anchor_before(primary_range.end);
4297
4298 let blocks = display_map
4299 .insert_blocks(
4300 diagnostic_group.iter().map(|entry| {
4301 let build_settings = self.build_settings.clone();
4302 let diagnostic = entry.diagnostic.clone();
4303 let message_height = diagnostic.message.lines().count() as u8;
4304
4305 BlockProperties {
4306 position: buffer.anchor_after(entry.range.start),
4307 height: message_height,
4308 render: diagnostic_block_renderer(diagnostic, true, build_settings),
4309 disposition: BlockDisposition::Below,
4310 }
4311 }),
4312 cx,
4313 )
4314 .into_iter()
4315 .zip(diagnostic_group.into_iter().map(|entry| entry.diagnostic))
4316 .collect();
4317
4318 Some(ActiveDiagnosticGroup {
4319 primary_range,
4320 primary_message,
4321 blocks,
4322 is_valid: true,
4323 })
4324 });
4325 }
4326
4327 fn dismiss_diagnostics(&mut self, cx: &mut ViewContext<Self>) {
4328 if let Some(active_diagnostic_group) = self.active_diagnostics.take() {
4329 self.display_map.update(cx, |display_map, cx| {
4330 display_map.remove_blocks(active_diagnostic_group.blocks.into_keys().collect(), cx);
4331 });
4332 cx.notify();
4333 }
4334 }
4335
4336 fn build_columnar_selection(
4337 &mut self,
4338 display_map: &DisplaySnapshot,
4339 row: u32,
4340 columns: &Range<u32>,
4341 reversed: bool,
4342 ) -> Option<Selection<Point>> {
4343 let is_empty = columns.start == columns.end;
4344 let line_len = display_map.line_len(row);
4345 if columns.start < line_len || (is_empty && columns.start == line_len) {
4346 let start = DisplayPoint::new(row, columns.start);
4347 let end = DisplayPoint::new(row, cmp::min(columns.end, line_len));
4348 Some(Selection {
4349 id: post_inc(&mut self.next_selection_id),
4350 start: start.to_point(display_map),
4351 end: end.to_point(display_map),
4352 reversed,
4353 goal: SelectionGoal::ColumnRange {
4354 start: columns.start,
4355 end: columns.end,
4356 },
4357 })
4358 } else {
4359 None
4360 }
4361 }
4362
4363 pub fn local_selections_in_range(
4364 &self,
4365 range: Range<Anchor>,
4366 display_map: &DisplaySnapshot,
4367 ) -> Vec<Selection<Point>> {
4368 let buffer = &display_map.buffer_snapshot;
4369
4370 let start_ix = match self
4371 .selections
4372 .binary_search_by(|probe| probe.end.cmp(&range.start, &buffer).unwrap())
4373 {
4374 Ok(ix) | Err(ix) => ix,
4375 };
4376 let end_ix = match self
4377 .selections
4378 .binary_search_by(|probe| probe.start.cmp(&range.end, &buffer).unwrap())
4379 {
4380 Ok(ix) => ix + 1,
4381 Err(ix) => ix,
4382 };
4383
4384 fn point_selection(
4385 selection: &Selection<Anchor>,
4386 buffer: &MultiBufferSnapshot,
4387 ) -> Selection<Point> {
4388 let start = selection.start.to_point(&buffer);
4389 let end = selection.end.to_point(&buffer);
4390 Selection {
4391 id: selection.id,
4392 start,
4393 end,
4394 reversed: selection.reversed,
4395 goal: selection.goal,
4396 }
4397 }
4398
4399 self.selections[start_ix..end_ix]
4400 .iter()
4401 .chain(
4402 self.pending_selection
4403 .as_ref()
4404 .map(|pending| &pending.selection),
4405 )
4406 .map(|s| point_selection(s, &buffer))
4407 .collect()
4408 }
4409
4410 pub fn local_selections<'a, D>(&self, cx: &'a AppContext) -> Vec<Selection<D>>
4411 where
4412 D: 'a + TextDimension + Ord + Sub<D, Output = D>,
4413 {
4414 let buffer = self.buffer.read(cx).snapshot(cx);
4415 let mut selections = self
4416 .resolve_selections::<D, _>(self.selections.iter(), &buffer)
4417 .peekable();
4418
4419 let mut pending_selection = self.pending_selection::<D>(&buffer);
4420
4421 iter::from_fn(move || {
4422 if let Some(pending) = pending_selection.as_mut() {
4423 while let Some(next_selection) = selections.peek() {
4424 if pending.start <= next_selection.end && pending.end >= next_selection.start {
4425 let next_selection = selections.next().unwrap();
4426 if next_selection.start < pending.start {
4427 pending.start = next_selection.start;
4428 }
4429 if next_selection.end > pending.end {
4430 pending.end = next_selection.end;
4431 }
4432 } else if next_selection.end < pending.start {
4433 return selections.next();
4434 } else {
4435 break;
4436 }
4437 }
4438
4439 pending_selection.take()
4440 } else {
4441 selections.next()
4442 }
4443 })
4444 .collect()
4445 }
4446
4447 fn resolve_selections<'a, D, I>(
4448 &self,
4449 selections: I,
4450 snapshot: &MultiBufferSnapshot,
4451 ) -> impl 'a + Iterator<Item = Selection<D>>
4452 where
4453 D: TextDimension + Ord + Sub<D, Output = D>,
4454 I: 'a + IntoIterator<Item = &'a Selection<Anchor>>,
4455 {
4456 let (to_summarize, selections) = selections.into_iter().tee();
4457 let mut summaries = snapshot
4458 .summaries_for_anchors::<D, _>(to_summarize.flat_map(|s| [&s.start, &s.end]))
4459 .into_iter();
4460 selections.map(move |s| Selection {
4461 id: s.id,
4462 start: summaries.next().unwrap(),
4463 end: summaries.next().unwrap(),
4464 reversed: s.reversed,
4465 goal: s.goal,
4466 })
4467 }
4468
4469 fn pending_selection<D: TextDimension + Ord + Sub<D, Output = D>>(
4470 &self,
4471 snapshot: &MultiBufferSnapshot,
4472 ) -> Option<Selection<D>> {
4473 self.pending_selection
4474 .as_ref()
4475 .map(|pending| self.resolve_selection(&pending.selection, &snapshot))
4476 }
4477
4478 fn resolve_selection<D: TextDimension + Ord + Sub<D, Output = D>>(
4479 &self,
4480 selection: &Selection<Anchor>,
4481 buffer: &MultiBufferSnapshot,
4482 ) -> Selection<D> {
4483 Selection {
4484 id: selection.id,
4485 start: selection.start.summary::<D>(&buffer),
4486 end: selection.end.summary::<D>(&buffer),
4487 reversed: selection.reversed,
4488 goal: selection.goal,
4489 }
4490 }
4491
4492 fn selection_count<'a>(&self) -> usize {
4493 let mut count = self.selections.len();
4494 if self.pending_selection.is_some() {
4495 count += 1;
4496 }
4497 count
4498 }
4499
4500 pub fn oldest_selection<D: TextDimension + Ord + Sub<D, Output = D>>(
4501 &self,
4502 snapshot: &MultiBufferSnapshot,
4503 ) -> Selection<D> {
4504 self.selections
4505 .iter()
4506 .min_by_key(|s| s.id)
4507 .map(|selection| self.resolve_selection(selection, snapshot))
4508 .or_else(|| self.pending_selection(snapshot))
4509 .unwrap()
4510 }
4511
4512 pub fn newest_selection<D: TextDimension + Ord + Sub<D, Output = D>>(
4513 &self,
4514 snapshot: &MultiBufferSnapshot,
4515 ) -> Selection<D> {
4516 self.resolve_selection(self.newest_anchor_selection(), snapshot)
4517 }
4518
4519 pub fn newest_anchor_selection(&self) -> &Selection<Anchor> {
4520 self.pending_selection
4521 .as_ref()
4522 .map(|s| &s.selection)
4523 .or_else(|| self.selections.iter().max_by_key(|s| s.id))
4524 .unwrap()
4525 }
4526
4527 pub fn update_selections<T>(
4528 &mut self,
4529 mut selections: Vec<Selection<T>>,
4530 autoscroll: Option<Autoscroll>,
4531 cx: &mut ViewContext<Self>,
4532 ) where
4533 T: ToOffset + ToPoint + Ord + std::marker::Copy + std::fmt::Debug,
4534 {
4535 let buffer = self.buffer.read(cx).snapshot(cx);
4536 selections.sort_unstable_by_key(|s| s.start);
4537
4538 // Merge overlapping selections.
4539 let mut i = 1;
4540 while i < selections.len() {
4541 if selections[i - 1].end >= selections[i].start {
4542 let removed = selections.remove(i);
4543 if removed.start < selections[i - 1].start {
4544 selections[i - 1].start = removed.start;
4545 }
4546 if removed.end > selections[i - 1].end {
4547 selections[i - 1].end = removed.end;
4548 }
4549 } else {
4550 i += 1;
4551 }
4552 }
4553
4554 if let Some(autoscroll) = autoscroll {
4555 self.request_autoscroll(autoscroll, cx);
4556 }
4557
4558 self.set_selections(
4559 Arc::from_iter(selections.into_iter().map(|selection| {
4560 let end_bias = if selection.end > selection.start {
4561 Bias::Left
4562 } else {
4563 Bias::Right
4564 };
4565 Selection {
4566 id: selection.id,
4567 start: buffer.anchor_after(selection.start),
4568 end: buffer.anchor_at(selection.end, end_bias),
4569 reversed: selection.reversed,
4570 goal: selection.goal,
4571 }
4572 })),
4573 None,
4574 cx,
4575 );
4576 }
4577
4578 /// Compute new ranges for any selections that were located in excerpts that have
4579 /// since been removed.
4580 ///
4581 /// Returns a `HashMap` indicating which selections whose former head position
4582 /// was no longer present. The keys of the map are selection ids. The values are
4583 /// the id of the new excerpt where the head of the selection has been moved.
4584 pub fn refresh_selections(&mut self, cx: &mut ViewContext<Self>) -> HashMap<usize, ExcerptId> {
4585 let snapshot = self.buffer.read(cx).read(cx);
4586 let anchors_with_status = snapshot.refresh_anchors(
4587 self.selections
4588 .iter()
4589 .flat_map(|selection| [&selection.start, &selection.end]),
4590 );
4591 let offsets =
4592 snapshot.summaries_for_anchors::<usize, _>(anchors_with_status.iter().map(|a| &a.1));
4593 let offsets = offsets.chunks(2);
4594 let statuses = anchors_with_status
4595 .chunks(2)
4596 .map(|a| (a[0].0 / 2, a[0].2, a[1].2));
4597
4598 let mut selections_with_lost_position = HashMap::default();
4599 let new_selections = offsets
4600 .zip(statuses)
4601 .map(|(offsets, (selection_ix, kept_start, kept_end))| {
4602 let selection = &self.selections[selection_ix];
4603 let kept_head = if selection.reversed {
4604 kept_start
4605 } else {
4606 kept_end
4607 };
4608 if !kept_head {
4609 selections_with_lost_position
4610 .insert(selection.id, selection.head().excerpt_id.clone());
4611 }
4612
4613 Selection {
4614 id: selection.id,
4615 start: offsets[0],
4616 end: offsets[1],
4617 reversed: selection.reversed,
4618 goal: selection.goal,
4619 }
4620 })
4621 .collect();
4622 drop(snapshot);
4623 self.update_selections(new_selections, Some(Autoscroll::Fit), cx);
4624 selections_with_lost_position
4625 }
4626
4627 fn set_selections(
4628 &mut self,
4629 selections: Arc<[Selection<Anchor>]>,
4630 pending_selection: Option<PendingSelection>,
4631 cx: &mut ViewContext<Self>,
4632 ) {
4633 let old_cursor_position = self.newest_anchor_selection().head();
4634
4635 self.selections = selections;
4636 self.pending_selection = pending_selection;
4637 if self.focused {
4638 self.buffer.update(cx, |buffer, cx| {
4639 buffer.set_active_selections(&self.selections, cx)
4640 });
4641 }
4642
4643 let display_map = self
4644 .display_map
4645 .update(cx, |display_map, cx| display_map.snapshot(cx));
4646 let buffer = &display_map.buffer_snapshot;
4647 self.add_selections_state = None;
4648 self.select_next_state = None;
4649 self.select_larger_syntax_node_stack.clear();
4650 self.autoclose_stack.invalidate(&self.selections, &buffer);
4651 self.snippet_stack.invalidate(&self.selections, &buffer);
4652 self.invalidate_rename_range(&buffer, cx);
4653
4654 let new_cursor_position = self.newest_anchor_selection().head();
4655
4656 self.push_to_nav_history(
4657 old_cursor_position.clone(),
4658 Some(new_cursor_position.to_point(&buffer)),
4659 cx,
4660 );
4661
4662 let completion_menu = match self.context_menu.as_mut() {
4663 Some(ContextMenu::Completions(menu)) => Some(menu),
4664 _ => {
4665 self.context_menu.take();
4666 None
4667 }
4668 };
4669
4670 if let Some(completion_menu) = completion_menu {
4671 let cursor_position = new_cursor_position.to_offset(&buffer);
4672 let (word_range, kind) =
4673 buffer.surrounding_word(completion_menu.initial_position.clone());
4674 if kind == Some(CharKind::Word) && word_range.to_inclusive().contains(&cursor_position)
4675 {
4676 let query = Self::completion_query(&buffer, cursor_position);
4677 cx.background()
4678 .block(completion_menu.filter(query.as_deref(), cx.background().clone()));
4679 self.show_completions(&ShowCompletions, cx);
4680 } else {
4681 self.hide_context_menu(cx);
4682 }
4683 }
4684
4685 if old_cursor_position.to_display_point(&display_map).row()
4686 != new_cursor_position.to_display_point(&display_map).row()
4687 {
4688 self.available_code_actions.take();
4689 }
4690 self.refresh_code_actions(cx);
4691
4692 self.pause_cursor_blinking(cx);
4693 cx.emit(Event::SelectionsChanged);
4694 }
4695
4696 pub fn request_autoscroll(&mut self, autoscroll: Autoscroll, cx: &mut ViewContext<Self>) {
4697 self.autoscroll_request = Some(autoscroll);
4698 cx.notify();
4699 }
4700
4701 fn start_transaction(&mut self, cx: &mut ViewContext<Self>) {
4702 self.start_transaction_at(Instant::now(), cx);
4703 }
4704
4705 fn start_transaction_at(&mut self, now: Instant, cx: &mut ViewContext<Self>) {
4706 self.end_selection(cx);
4707 if let Some(tx_id) = self
4708 .buffer
4709 .update(cx, |buffer, cx| buffer.start_transaction_at(now, cx))
4710 {
4711 self.selection_history
4712 .insert(tx_id, (self.selections.clone(), None));
4713 }
4714 }
4715
4716 fn end_transaction(&mut self, cx: &mut ViewContext<Self>) {
4717 self.end_transaction_at(Instant::now(), cx);
4718 }
4719
4720 fn end_transaction_at(&mut self, now: Instant, cx: &mut ViewContext<Self>) {
4721 if let Some(tx_id) = self
4722 .buffer
4723 .update(cx, |buffer, cx| buffer.end_transaction_at(now, cx))
4724 {
4725 if let Some(rename) = self.pending_rename.as_mut() {
4726 if rename.first_transaction.is_none() {
4727 rename.first_transaction = Some(tx_id);
4728 }
4729 }
4730
4731 if let Some((_, end_selections)) = self.selection_history.get_mut(&tx_id) {
4732 *end_selections = Some(self.selections.clone());
4733 } else {
4734 log::error!("unexpectedly ended a transaction that wasn't started by this editor");
4735 }
4736 }
4737 }
4738
4739 pub fn page_up(&mut self, _: &PageUp, _: &mut ViewContext<Self>) {
4740 log::info!("Editor::page_up");
4741 }
4742
4743 pub fn page_down(&mut self, _: &PageDown, _: &mut ViewContext<Self>) {
4744 log::info!("Editor::page_down");
4745 }
4746
4747 pub fn fold(&mut self, _: &Fold, cx: &mut ViewContext<Self>) {
4748 let mut fold_ranges = Vec::new();
4749
4750 let selections = self.local_selections::<Point>(cx);
4751 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
4752 for selection in selections {
4753 let range = selection.display_range(&display_map).sorted();
4754 let buffer_start_row = range.start.to_point(&display_map).row;
4755
4756 for row in (0..=range.end.row()).rev() {
4757 if self.is_line_foldable(&display_map, row) && !display_map.is_line_folded(row) {
4758 let fold_range = self.foldable_range_for_line(&display_map, row);
4759 if fold_range.end.row >= buffer_start_row {
4760 fold_ranges.push(fold_range);
4761 if row <= range.start.row() {
4762 break;
4763 }
4764 }
4765 }
4766 }
4767 }
4768
4769 self.fold_ranges(fold_ranges, cx);
4770 }
4771
4772 pub fn unfold(&mut self, _: &Unfold, cx: &mut ViewContext<Self>) {
4773 let selections = self.local_selections::<Point>(cx);
4774 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
4775 let buffer = &display_map.buffer_snapshot;
4776 let ranges = selections
4777 .iter()
4778 .map(|s| {
4779 let range = s.display_range(&display_map).sorted();
4780 let mut start = range.start.to_point(&display_map);
4781 let mut end = range.end.to_point(&display_map);
4782 start.column = 0;
4783 end.column = buffer.line_len(end.row);
4784 start..end
4785 })
4786 .collect::<Vec<_>>();
4787 self.unfold_ranges(ranges, cx);
4788 }
4789
4790 fn is_line_foldable(&self, display_map: &DisplaySnapshot, display_row: u32) -> bool {
4791 let max_point = display_map.max_point();
4792 if display_row >= max_point.row() {
4793 false
4794 } else {
4795 let (start_indent, is_blank) = display_map.line_indent(display_row);
4796 if is_blank {
4797 false
4798 } else {
4799 for display_row in display_row + 1..=max_point.row() {
4800 let (indent, is_blank) = display_map.line_indent(display_row);
4801 if !is_blank {
4802 return indent > start_indent;
4803 }
4804 }
4805 false
4806 }
4807 }
4808 }
4809
4810 fn foldable_range_for_line(
4811 &self,
4812 display_map: &DisplaySnapshot,
4813 start_row: u32,
4814 ) -> Range<Point> {
4815 let max_point = display_map.max_point();
4816
4817 let (start_indent, _) = display_map.line_indent(start_row);
4818 let start = DisplayPoint::new(start_row, display_map.line_len(start_row));
4819 let mut end = None;
4820 for row in start_row + 1..=max_point.row() {
4821 let (indent, is_blank) = display_map.line_indent(row);
4822 if !is_blank && indent <= start_indent {
4823 end = Some(DisplayPoint::new(row - 1, display_map.line_len(row - 1)));
4824 break;
4825 }
4826 }
4827
4828 let end = end.unwrap_or(max_point);
4829 return start.to_point(display_map)..end.to_point(display_map);
4830 }
4831
4832 pub fn fold_selected_ranges(&mut self, _: &FoldSelectedRanges, cx: &mut ViewContext<Self>) {
4833 let selections = self.local_selections::<Point>(cx);
4834 let ranges = selections.into_iter().map(|s| s.start..s.end);
4835 self.fold_ranges(ranges, cx);
4836 }
4837
4838 fn fold_ranges<T: ToOffset>(
4839 &mut self,
4840 ranges: impl IntoIterator<Item = Range<T>>,
4841 cx: &mut ViewContext<Self>,
4842 ) {
4843 let mut ranges = ranges.into_iter().peekable();
4844 if ranges.peek().is_some() {
4845 self.display_map.update(cx, |map, cx| map.fold(ranges, cx));
4846 self.request_autoscroll(Autoscroll::Fit, cx);
4847 cx.notify();
4848 }
4849 }
4850
4851 fn unfold_ranges<T: ToOffset>(&mut self, ranges: Vec<Range<T>>, cx: &mut ViewContext<Self>) {
4852 if !ranges.is_empty() {
4853 self.display_map
4854 .update(cx, |map, cx| map.unfold(ranges, cx));
4855 self.request_autoscroll(Autoscroll::Fit, cx);
4856 cx.notify();
4857 }
4858 }
4859
4860 pub fn insert_blocks(
4861 &mut self,
4862 blocks: impl IntoIterator<Item = BlockProperties<Anchor>>,
4863 cx: &mut ViewContext<Self>,
4864 ) -> Vec<BlockId> {
4865 let blocks = self
4866 .display_map
4867 .update(cx, |display_map, cx| display_map.insert_blocks(blocks, cx));
4868 self.request_autoscroll(Autoscroll::Fit, cx);
4869 blocks
4870 }
4871
4872 pub fn replace_blocks(
4873 &mut self,
4874 blocks: HashMap<BlockId, RenderBlock>,
4875 cx: &mut ViewContext<Self>,
4876 ) {
4877 self.display_map
4878 .update(cx, |display_map, _| display_map.replace_blocks(blocks));
4879 self.request_autoscroll(Autoscroll::Fit, cx);
4880 }
4881
4882 pub fn remove_blocks(&mut self, block_ids: HashSet<BlockId>, cx: &mut ViewContext<Self>) {
4883 self.display_map.update(cx, |display_map, cx| {
4884 display_map.remove_blocks(block_ids, cx)
4885 });
4886 }
4887
4888 pub fn longest_row(&self, cx: &mut MutableAppContext) -> u32 {
4889 self.display_map
4890 .update(cx, |map, cx| map.snapshot(cx))
4891 .longest_row()
4892 }
4893
4894 pub fn max_point(&self, cx: &mut MutableAppContext) -> DisplayPoint {
4895 self.display_map
4896 .update(cx, |map, cx| map.snapshot(cx))
4897 .max_point()
4898 }
4899
4900 pub fn text(&self, cx: &AppContext) -> String {
4901 self.buffer.read(cx).read(cx).text()
4902 }
4903
4904 pub fn display_text(&self, cx: &mut MutableAppContext) -> String {
4905 self.display_map
4906 .update(cx, |map, cx| map.snapshot(cx))
4907 .text()
4908 }
4909
4910 pub fn set_wrap_width(&self, width: Option<f32>, cx: &mut MutableAppContext) -> bool {
4911 self.display_map
4912 .update(cx, |map, cx| map.set_wrap_width(width, cx))
4913 }
4914
4915 pub fn set_highlighted_rows(&mut self, rows: Option<Range<u32>>) {
4916 self.highlighted_rows = rows;
4917 }
4918
4919 pub fn highlighted_rows(&self) -> Option<Range<u32>> {
4920 self.highlighted_rows.clone()
4921 }
4922
4923 pub fn highlight_ranges<T: 'static>(
4924 &mut self,
4925 ranges: Vec<Range<Anchor>>,
4926 color: Color,
4927 cx: &mut ViewContext<Self>,
4928 ) {
4929 self.highlighted_ranges
4930 .insert(TypeId::of::<T>(), (color, ranges));
4931 cx.notify();
4932 }
4933
4934 pub fn clear_highlighted_ranges<T: 'static>(
4935 &mut self,
4936 cx: &mut ViewContext<Self>,
4937 ) -> Option<(Color, Vec<Range<Anchor>>)> {
4938 cx.notify();
4939 self.highlighted_ranges.remove(&TypeId::of::<T>())
4940 }
4941
4942 #[cfg(feature = "test-support")]
4943 pub fn all_highlighted_ranges(
4944 &mut self,
4945 cx: &mut ViewContext<Self>,
4946 ) -> Vec<(Range<DisplayPoint>, Color)> {
4947 let snapshot = self.snapshot(cx);
4948 let buffer = &snapshot.buffer_snapshot;
4949 let start = buffer.anchor_before(0);
4950 let end = buffer.anchor_after(buffer.len());
4951 self.highlighted_ranges_in_range(start..end, &snapshot)
4952 }
4953
4954 pub fn highlighted_ranges_for_type<T: 'static>(&self) -> Option<(Color, &[Range<Anchor>])> {
4955 self.highlighted_ranges
4956 .get(&TypeId::of::<T>())
4957 .map(|(color, ranges)| (*color, ranges.as_slice()))
4958 }
4959
4960 pub fn highlighted_ranges_in_range(
4961 &self,
4962 search_range: Range<Anchor>,
4963 display_snapshot: &DisplaySnapshot,
4964 ) -> Vec<(Range<DisplayPoint>, Color)> {
4965 let mut results = Vec::new();
4966 let buffer = &display_snapshot.buffer_snapshot;
4967 for (color, ranges) in self.highlighted_ranges.values() {
4968 let start_ix = match ranges.binary_search_by(|probe| {
4969 let cmp = probe.end.cmp(&search_range.start, &buffer).unwrap();
4970 if cmp.is_gt() {
4971 Ordering::Greater
4972 } else {
4973 Ordering::Less
4974 }
4975 }) {
4976 Ok(i) | Err(i) => i,
4977 };
4978 for range in &ranges[start_ix..] {
4979 if range.start.cmp(&search_range.end, &buffer).unwrap().is_ge() {
4980 break;
4981 }
4982 let start = range
4983 .start
4984 .to_point(buffer)
4985 .to_display_point(display_snapshot);
4986 let end = range
4987 .end
4988 .to_point(buffer)
4989 .to_display_point(display_snapshot);
4990 results.push((start..end, *color))
4991 }
4992 }
4993 results
4994 }
4995
4996 fn next_blink_epoch(&mut self) -> usize {
4997 self.blink_epoch += 1;
4998 self.blink_epoch
4999 }
5000
5001 fn pause_cursor_blinking(&mut self, cx: &mut ViewContext<Self>) {
5002 if !self.focused {
5003 return;
5004 }
5005
5006 self.show_local_cursors = true;
5007 cx.notify();
5008
5009 let epoch = self.next_blink_epoch();
5010 cx.spawn(|this, mut cx| {
5011 let this = this.downgrade();
5012 async move {
5013 Timer::after(CURSOR_BLINK_INTERVAL).await;
5014 if let Some(this) = this.upgrade(&cx) {
5015 this.update(&mut cx, |this, cx| this.resume_cursor_blinking(epoch, cx))
5016 }
5017 }
5018 })
5019 .detach();
5020 }
5021
5022 fn resume_cursor_blinking(&mut self, epoch: usize, cx: &mut ViewContext<Self>) {
5023 if epoch == self.blink_epoch {
5024 self.blinking_paused = false;
5025 self.blink_cursors(epoch, cx);
5026 }
5027 }
5028
5029 fn blink_cursors(&mut self, epoch: usize, cx: &mut ViewContext<Self>) {
5030 if epoch == self.blink_epoch && self.focused && !self.blinking_paused {
5031 self.show_local_cursors = !self.show_local_cursors;
5032 cx.notify();
5033
5034 let epoch = self.next_blink_epoch();
5035 cx.spawn(|this, mut cx| {
5036 let this = this.downgrade();
5037 async move {
5038 Timer::after(CURSOR_BLINK_INTERVAL).await;
5039 if let Some(this) = this.upgrade(&cx) {
5040 this.update(&mut cx, |this, cx| this.blink_cursors(epoch, cx));
5041 }
5042 }
5043 })
5044 .detach();
5045 }
5046 }
5047
5048 pub fn show_local_cursors(&self) -> bool {
5049 self.show_local_cursors
5050 }
5051
5052 fn on_buffer_changed(&mut self, _: ModelHandle<MultiBuffer>, cx: &mut ViewContext<Self>) {
5053 cx.notify();
5054 }
5055
5056 fn on_buffer_event(
5057 &mut self,
5058 _: ModelHandle<MultiBuffer>,
5059 event: &language::Event,
5060 cx: &mut ViewContext<Self>,
5061 ) {
5062 match event {
5063 language::Event::Edited => {
5064 self.refresh_active_diagnostics(cx);
5065 self.refresh_code_actions(cx);
5066 cx.emit(Event::Edited);
5067 }
5068 language::Event::Dirtied => cx.emit(Event::Dirtied),
5069 language::Event::Saved => cx.emit(Event::Saved),
5070 language::Event::FileHandleChanged => cx.emit(Event::TitleChanged),
5071 language::Event::Reloaded => cx.emit(Event::TitleChanged),
5072 language::Event::Closed => cx.emit(Event::Closed),
5073 language::Event::DiagnosticsUpdated => {
5074 self.refresh_active_diagnostics(cx);
5075 }
5076 _ => {}
5077 }
5078 }
5079
5080 fn on_display_map_changed(&mut self, _: ModelHandle<DisplayMap>, cx: &mut ViewContext<Self>) {
5081 cx.notify();
5082 }
5083}
5084
5085impl EditorSnapshot {
5086 pub fn is_focused(&self) -> bool {
5087 self.is_focused
5088 }
5089
5090 pub fn placeholder_text(&self) -> Option<&Arc<str>> {
5091 self.placeholder_text.as_ref()
5092 }
5093
5094 pub fn scroll_position(&self) -> Vector2F {
5095 compute_scroll_position(
5096 &self.display_snapshot,
5097 self.scroll_position,
5098 &self.scroll_top_anchor,
5099 )
5100 }
5101}
5102
5103impl Deref for EditorSnapshot {
5104 type Target = DisplaySnapshot;
5105
5106 fn deref(&self) -> &Self::Target {
5107 &self.display_snapshot
5108 }
5109}
5110
5111impl EditorSettings {
5112 #[cfg(any(test, feature = "test-support"))]
5113 pub fn test(cx: &AppContext) -> Self {
5114 use theme::{ContainedLabel, ContainedText, DiagnosticHeader, DiagnosticPathHeader};
5115
5116 Self {
5117 tab_size: 4,
5118 soft_wrap: SoftWrap::None,
5119 style: {
5120 let font_cache: &gpui::FontCache = cx.font_cache();
5121 let font_family_name = Arc::from("Monaco");
5122 let font_properties = Default::default();
5123 let font_family_id = font_cache.load_family(&[&font_family_name]).unwrap();
5124 let font_id = font_cache
5125 .select_font(font_family_id, &font_properties)
5126 .unwrap();
5127 let text = gpui::fonts::TextStyle {
5128 font_family_name,
5129 font_family_id,
5130 font_id,
5131 font_size: 14.,
5132 color: gpui::color::Color::from_u32(0xff0000ff),
5133 font_properties,
5134 underline: None,
5135 };
5136 let default_diagnostic_style = DiagnosticStyle {
5137 message: text.clone().into(),
5138 header: Default::default(),
5139 text_scale_factor: 1.,
5140 };
5141 EditorStyle {
5142 text: text.clone(),
5143 placeholder_text: None,
5144 background: Default::default(),
5145 gutter_background: Default::default(),
5146 gutter_padding_factor: 2.,
5147 active_line_background: Default::default(),
5148 highlighted_line_background: Default::default(),
5149 line_number: Default::default(),
5150 line_number_active: Default::default(),
5151 selection: Default::default(),
5152 guest_selections: Default::default(),
5153 syntax: Default::default(),
5154 diagnostic_path_header: DiagnosticPathHeader {
5155 container: Default::default(),
5156 filename: ContainedText {
5157 container: Default::default(),
5158 text: text.clone(),
5159 },
5160 path: ContainedText {
5161 container: Default::default(),
5162 text: text.clone(),
5163 },
5164 text_scale_factor: 1.,
5165 },
5166 diagnostic_header: DiagnosticHeader {
5167 container: Default::default(),
5168 message: ContainedLabel {
5169 container: Default::default(),
5170 label: text.clone().into(),
5171 },
5172 code: ContainedText {
5173 container: Default::default(),
5174 text: text.clone(),
5175 },
5176 icon_width_factor: 1.,
5177 text_scale_factor: 1.,
5178 },
5179 error_diagnostic: default_diagnostic_style.clone(),
5180 invalid_error_diagnostic: default_diagnostic_style.clone(),
5181 warning_diagnostic: default_diagnostic_style.clone(),
5182 invalid_warning_diagnostic: default_diagnostic_style.clone(),
5183 information_diagnostic: default_diagnostic_style.clone(),
5184 invalid_information_diagnostic: default_diagnostic_style.clone(),
5185 hint_diagnostic: default_diagnostic_style.clone(),
5186 invalid_hint_diagnostic: default_diagnostic_style.clone(),
5187 autocomplete: Default::default(),
5188 code_actions_indicator: Default::default(),
5189 }
5190 },
5191 }
5192 }
5193}
5194
5195fn compute_scroll_position(
5196 snapshot: &DisplaySnapshot,
5197 mut scroll_position: Vector2F,
5198 scroll_top_anchor: &Option<Anchor>,
5199) -> Vector2F {
5200 if let Some(anchor) = scroll_top_anchor {
5201 let scroll_top = anchor.to_display_point(snapshot).row() as f32;
5202 scroll_position.set_y(scroll_top + scroll_position.y());
5203 } else {
5204 scroll_position.set_y(0.);
5205 }
5206 scroll_position
5207}
5208
5209#[derive(Copy, Clone)]
5210pub enum Event {
5211 Activate,
5212 Edited,
5213 Blurred,
5214 Dirtied,
5215 Saved,
5216 TitleChanged,
5217 SelectionsChanged,
5218 Closed,
5219}
5220
5221impl Entity for Editor {
5222 type Event = Event;
5223}
5224
5225impl View for Editor {
5226 fn render(&mut self, cx: &mut RenderContext<Self>) -> ElementBox {
5227 let settings = (self.build_settings)(cx);
5228 self.display_map.update(cx, |map, cx| {
5229 map.set_font(
5230 settings.style.text.font_id,
5231 settings.style.text.font_size,
5232 cx,
5233 )
5234 });
5235 EditorElement::new(self.handle.clone(), settings).boxed()
5236 }
5237
5238 fn ui_name() -> &'static str {
5239 "Editor"
5240 }
5241
5242 fn on_focus(&mut self, cx: &mut ViewContext<Self>) {
5243 self.focused = true;
5244 self.blink_cursors(self.blink_epoch, cx);
5245 self.buffer.update(cx, |buffer, cx| {
5246 buffer.finalize_last_transaction(cx);
5247 buffer.set_active_selections(&self.selections, cx)
5248 });
5249 }
5250
5251 fn on_blur(&mut self, cx: &mut ViewContext<Self>) {
5252 self.focused = false;
5253 self.show_local_cursors = false;
5254 self.buffer
5255 .update(cx, |buffer, cx| buffer.remove_active_selections(cx));
5256 self.hide_context_menu(cx);
5257 cx.emit(Event::Blurred);
5258 cx.notify();
5259 }
5260
5261 fn keymap_context(&self, _: &AppContext) -> gpui::keymap::Context {
5262 let mut cx = Self::default_keymap_context();
5263 let mode = match self.mode {
5264 EditorMode::SingleLine => "single_line",
5265 EditorMode::AutoHeight { .. } => "auto_height",
5266 EditorMode::Full => "full",
5267 };
5268 cx.map.insert("mode".into(), mode.into());
5269 if self.pending_rename.is_some() {
5270 cx.set.insert("renaming".into());
5271 }
5272 match self.context_menu.as_ref() {
5273 Some(ContextMenu::Completions(_)) => {
5274 cx.set.insert("showing_completions".into());
5275 }
5276 Some(ContextMenu::CodeActions(_)) => {
5277 cx.set.insert("showing_code_actions".into());
5278 }
5279 None => {}
5280 }
5281 cx
5282 }
5283}
5284
5285impl<T: ToPoint + ToOffset> SelectionExt for Selection<T> {
5286 fn point_range(&self, buffer: &MultiBufferSnapshot) -> Range<Point> {
5287 let start = self.start.to_point(buffer);
5288 let end = self.end.to_point(buffer);
5289 if self.reversed {
5290 end..start
5291 } else {
5292 start..end
5293 }
5294 }
5295
5296 fn offset_range(&self, buffer: &MultiBufferSnapshot) -> Range<usize> {
5297 let start = self.start.to_offset(buffer);
5298 let end = self.end.to_offset(buffer);
5299 if self.reversed {
5300 end..start
5301 } else {
5302 start..end
5303 }
5304 }
5305
5306 fn display_range(&self, map: &DisplaySnapshot) -> Range<DisplayPoint> {
5307 let start = self
5308 .start
5309 .to_point(&map.buffer_snapshot)
5310 .to_display_point(map);
5311 let end = self
5312 .end
5313 .to_point(&map.buffer_snapshot)
5314 .to_display_point(map);
5315 if self.reversed {
5316 end..start
5317 } else {
5318 start..end
5319 }
5320 }
5321
5322 fn spanned_rows(
5323 &self,
5324 include_end_if_at_line_start: bool,
5325 map: &DisplaySnapshot,
5326 ) -> Range<u32> {
5327 let start = self.start.to_point(&map.buffer_snapshot);
5328 let mut end = self.end.to_point(&map.buffer_snapshot);
5329 if !include_end_if_at_line_start && start.row != end.row && end.column == 0 {
5330 end.row -= 1;
5331 }
5332
5333 let buffer_start = map.prev_line_boundary(start).0;
5334 let buffer_end = map.next_line_boundary(end).0;
5335 buffer_start.row..buffer_end.row + 1
5336 }
5337}
5338
5339impl<T: InvalidationRegion> InvalidationStack<T> {
5340 fn invalidate<S>(&mut self, selections: &[Selection<S>], buffer: &MultiBufferSnapshot)
5341 where
5342 S: Clone + ToOffset,
5343 {
5344 while let Some(region) = self.last() {
5345 let all_selections_inside_invalidation_ranges =
5346 if selections.len() == region.ranges().len() {
5347 selections
5348 .iter()
5349 .zip(region.ranges().iter().map(|r| r.to_offset(&buffer)))
5350 .all(|(selection, invalidation_range)| {
5351 let head = selection.head().to_offset(&buffer);
5352 invalidation_range.start <= head && invalidation_range.end >= head
5353 })
5354 } else {
5355 false
5356 };
5357
5358 if all_selections_inside_invalidation_ranges {
5359 break;
5360 } else {
5361 self.pop();
5362 }
5363 }
5364 }
5365}
5366
5367impl<T> Default for InvalidationStack<T> {
5368 fn default() -> Self {
5369 Self(Default::default())
5370 }
5371}
5372
5373impl<T> Deref for InvalidationStack<T> {
5374 type Target = Vec<T>;
5375
5376 fn deref(&self) -> &Self::Target {
5377 &self.0
5378 }
5379}
5380
5381impl<T> DerefMut for InvalidationStack<T> {
5382 fn deref_mut(&mut self) -> &mut Self::Target {
5383 &mut self.0
5384 }
5385}
5386
5387impl InvalidationRegion for BracketPairState {
5388 fn ranges(&self) -> &[Range<Anchor>] {
5389 &self.ranges
5390 }
5391}
5392
5393impl InvalidationRegion for SnippetState {
5394 fn ranges(&self) -> &[Range<Anchor>] {
5395 &self.ranges[self.active_index]
5396 }
5397}
5398
5399pub fn diagnostic_block_renderer(
5400 diagnostic: Diagnostic,
5401 is_valid: bool,
5402 build_settings: BuildSettings,
5403) -> RenderBlock {
5404 let mut highlighted_lines = Vec::new();
5405 for line in diagnostic.message.lines() {
5406 highlighted_lines.push(highlight_diagnostic_message(line));
5407 }
5408
5409 Arc::new(move |cx: &BlockContext| {
5410 let settings = build_settings(cx);
5411 let style = diagnostic_style(diagnostic.severity, is_valid, &settings.style);
5412 let font_size = (style.text_scale_factor * settings.style.text.font_size).round();
5413 Flex::column()
5414 .with_children(highlighted_lines.iter().map(|(line, highlights)| {
5415 Label::new(
5416 line.clone(),
5417 style.message.clone().with_font_size(font_size),
5418 )
5419 .with_highlights(highlights.clone())
5420 .contained()
5421 .with_margin_left(cx.anchor_x)
5422 .boxed()
5423 }))
5424 .aligned()
5425 .left()
5426 .boxed()
5427 })
5428}
5429
5430pub fn highlight_diagnostic_message(message: &str) -> (String, Vec<usize>) {
5431 let mut message_without_backticks = String::new();
5432 let mut prev_offset = 0;
5433 let mut inside_block = false;
5434 let mut highlights = Vec::new();
5435 for (match_ix, (offset, _)) in message
5436 .match_indices('`')
5437 .chain([(message.len(), "")])
5438 .enumerate()
5439 {
5440 message_without_backticks.push_str(&message[prev_offset..offset]);
5441 if inside_block {
5442 highlights.extend(prev_offset - match_ix..offset - match_ix);
5443 }
5444
5445 inside_block = !inside_block;
5446 prev_offset = offset + 1;
5447 }
5448
5449 (message_without_backticks, highlights)
5450}
5451
5452pub fn diagnostic_style(
5453 severity: DiagnosticSeverity,
5454 valid: bool,
5455 style: &EditorStyle,
5456) -> DiagnosticStyle {
5457 match (severity, valid) {
5458 (DiagnosticSeverity::ERROR, true) => style.error_diagnostic.clone(),
5459 (DiagnosticSeverity::ERROR, false) => style.invalid_error_diagnostic.clone(),
5460 (DiagnosticSeverity::WARNING, true) => style.warning_diagnostic.clone(),
5461 (DiagnosticSeverity::WARNING, false) => style.invalid_warning_diagnostic.clone(),
5462 (DiagnosticSeverity::INFORMATION, true) => style.information_diagnostic.clone(),
5463 (DiagnosticSeverity::INFORMATION, false) => style.invalid_information_diagnostic.clone(),
5464 (DiagnosticSeverity::HINT, true) => style.hint_diagnostic.clone(),
5465 (DiagnosticSeverity::HINT, false) => style.invalid_hint_diagnostic.clone(),
5466 _ => DiagnosticStyle {
5467 message: style.text.clone().into(),
5468 header: Default::default(),
5469 text_scale_factor: 1.,
5470 },
5471 }
5472}
5473
5474pub fn settings_builder(
5475 buffer: WeakModelHandle<MultiBuffer>,
5476 settings: watch::Receiver<workspace::Settings>,
5477) -> BuildSettings {
5478 Arc::new(move |cx| {
5479 let settings = settings.borrow();
5480 let font_cache = cx.font_cache();
5481 let font_family_id = settings.buffer_font_family;
5482 let font_family_name = cx.font_cache().family_name(font_family_id).unwrap();
5483 let font_properties = Default::default();
5484 let font_id = font_cache
5485 .select_font(font_family_id, &font_properties)
5486 .unwrap();
5487 let font_size = settings.buffer_font_size;
5488
5489 let mut theme = settings.theme.editor.clone();
5490 theme.text = TextStyle {
5491 color: theme.text.color,
5492 font_family_name,
5493 font_family_id,
5494 font_id,
5495 font_size,
5496 font_properties,
5497 underline: None,
5498 };
5499 let language = buffer.upgrade(cx).and_then(|buf| buf.read(cx).language(cx));
5500 let soft_wrap = match settings.soft_wrap(language) {
5501 workspace::settings::SoftWrap::None => SoftWrap::None,
5502 workspace::settings::SoftWrap::EditorWidth => SoftWrap::EditorWidth,
5503 workspace::settings::SoftWrap::PreferredLineLength => {
5504 SoftWrap::Column(settings.preferred_line_length(language).saturating_sub(1))
5505 }
5506 };
5507
5508 EditorSettings {
5509 tab_size: settings.tab_size,
5510 soft_wrap,
5511 style: theme,
5512 }
5513 })
5514}
5515
5516pub fn combine_syntax_and_fuzzy_match_highlights(
5517 text: &str,
5518 default_style: HighlightStyle,
5519 syntax_ranges: impl Iterator<Item = (Range<usize>, HighlightStyle)>,
5520 match_indices: &[usize],
5521) -> Vec<(Range<usize>, HighlightStyle)> {
5522 let mut result = Vec::new();
5523 let mut match_indices = match_indices.iter().copied().peekable();
5524
5525 for (range, mut syntax_highlight) in syntax_ranges.chain([(usize::MAX..0, Default::default())])
5526 {
5527 syntax_highlight.font_properties.weight(Default::default());
5528
5529 // Add highlights for any fuzzy match characters before the next
5530 // syntax highlight range.
5531 while let Some(&match_index) = match_indices.peek() {
5532 if match_index >= range.start {
5533 break;
5534 }
5535 match_indices.next();
5536 let end_index = char_ix_after(match_index, text);
5537 let mut match_style = default_style;
5538 match_style.font_properties.weight(fonts::Weight::BOLD);
5539 result.push((match_index..end_index, match_style));
5540 }
5541
5542 if range.start == usize::MAX {
5543 break;
5544 }
5545
5546 // Add highlights for any fuzzy match characters within the
5547 // syntax highlight range.
5548 let mut offset = range.start;
5549 while let Some(&match_index) = match_indices.peek() {
5550 if match_index >= range.end {
5551 break;
5552 }
5553
5554 match_indices.next();
5555 if match_index > offset {
5556 result.push((offset..match_index, syntax_highlight));
5557 }
5558
5559 let mut end_index = char_ix_after(match_index, text);
5560 while let Some(&next_match_index) = match_indices.peek() {
5561 if next_match_index == end_index && next_match_index < range.end {
5562 end_index = char_ix_after(next_match_index, text);
5563 match_indices.next();
5564 } else {
5565 break;
5566 }
5567 }
5568
5569 let mut match_style = syntax_highlight;
5570 match_style.font_properties.weight(fonts::Weight::BOLD);
5571 result.push((match_index..end_index, match_style));
5572 offset = end_index;
5573 }
5574
5575 if offset < range.end {
5576 result.push((offset..range.end, syntax_highlight));
5577 }
5578 }
5579
5580 fn char_ix_after(ix: usize, text: &str) -> usize {
5581 ix + text[ix..].chars().next().unwrap().len_utf8()
5582 }
5583
5584 result
5585}
5586
5587fn styled_runs_for_completion_label<'a>(
5588 label: &'a CompletionLabel,
5589 default_color: Color,
5590 syntax_theme: &'a theme::SyntaxTheme,
5591) -> impl 'a + Iterator<Item = (Range<usize>, HighlightStyle)> {
5592 const MUTED_OPACITY: usize = 165;
5593
5594 let mut muted_default_style = HighlightStyle {
5595 color: default_color,
5596 ..Default::default()
5597 };
5598 muted_default_style.color.a = ((default_color.a as usize * MUTED_OPACITY) / 255) as u8;
5599
5600 let mut prev_end = label.filter_range.end;
5601 label
5602 .runs
5603 .iter()
5604 .enumerate()
5605 .flat_map(move |(ix, (range, highlight_id))| {
5606 let style = if let Some(style) = highlight_id.style(syntax_theme) {
5607 style
5608 } else {
5609 return Default::default();
5610 };
5611 let mut muted_style = style.clone();
5612 muted_style.color.a = ((style.color.a as usize * MUTED_OPACITY) / 255) as u8;
5613
5614 let mut runs = SmallVec::<[(Range<usize>, HighlightStyle); 3]>::new();
5615 if range.start >= label.filter_range.end {
5616 if range.start > prev_end {
5617 runs.push((prev_end..range.start, muted_default_style));
5618 }
5619 runs.push((range.clone(), muted_style));
5620 } else if range.end <= label.filter_range.end {
5621 runs.push((range.clone(), style));
5622 } else {
5623 runs.push((range.start..label.filter_range.end, style));
5624 runs.push((label.filter_range.end..range.end, muted_style));
5625 }
5626 prev_end = cmp::max(prev_end, range.end);
5627
5628 if ix + 1 == label.runs.len() && label.text.len() > prev_end {
5629 runs.push((prev_end..label.text.len(), muted_default_style));
5630 }
5631
5632 runs
5633 })
5634}
5635
5636#[cfg(test)]
5637mod tests {
5638 use super::*;
5639 use language::LanguageConfig;
5640 use lsp::FakeLanguageServer;
5641 use project::{FakeFs, ProjectPath};
5642 use smol::stream::StreamExt;
5643 use std::{cell::RefCell, rc::Rc, time::Instant};
5644 use text::Point;
5645 use unindent::Unindent;
5646 use util::test::sample_text;
5647
5648 #[gpui::test]
5649 fn test_undo_redo_with_selection_restoration(cx: &mut MutableAppContext) {
5650 let mut now = Instant::now();
5651 let buffer = cx.add_model(|cx| language::Buffer::new(0, "123456", cx));
5652 let group_interval = buffer.read(cx).transaction_group_interval();
5653 let buffer = cx.add_model(|cx| MultiBuffer::singleton(buffer, cx));
5654 let settings = EditorSettings::test(cx);
5655 let (_, editor) = cx.add_window(Default::default(), |cx| {
5656 build_editor(buffer.clone(), settings, cx)
5657 });
5658
5659 editor.update(cx, |editor, cx| {
5660 editor.start_transaction_at(now, cx);
5661 editor.select_ranges([2..4], None, cx);
5662 editor.insert("cd", cx);
5663 editor.end_transaction_at(now, cx);
5664 assert_eq!(editor.text(cx), "12cd56");
5665 assert_eq!(editor.selected_ranges(cx), vec![4..4]);
5666
5667 editor.start_transaction_at(now, cx);
5668 editor.select_ranges([4..5], None, cx);
5669 editor.insert("e", cx);
5670 editor.end_transaction_at(now, cx);
5671 assert_eq!(editor.text(cx), "12cde6");
5672 assert_eq!(editor.selected_ranges(cx), vec![5..5]);
5673
5674 now += group_interval + Duration::from_millis(1);
5675 editor.select_ranges([2..2], None, cx);
5676
5677 // Simulate an edit in another editor
5678 buffer.update(cx, |buffer, cx| {
5679 buffer.start_transaction_at(now, cx);
5680 buffer.edit([0..1], "a", cx);
5681 buffer.edit([1..1], "b", cx);
5682 buffer.end_transaction_at(now, cx);
5683 });
5684
5685 assert_eq!(editor.text(cx), "ab2cde6");
5686 assert_eq!(editor.selected_ranges(cx), vec![3..3]);
5687
5688 // Last transaction happened past the group interval in a different editor.
5689 // Undo it individually and don't restore selections.
5690 editor.undo(&Undo, cx);
5691 assert_eq!(editor.text(cx), "12cde6");
5692 assert_eq!(editor.selected_ranges(cx), vec![2..2]);
5693
5694 // First two transactions happened within the group interval in this editor.
5695 // Undo them together and restore selections.
5696 editor.undo(&Undo, cx);
5697 editor.undo(&Undo, cx); // Undo stack is empty here, so this is a no-op.
5698 assert_eq!(editor.text(cx), "123456");
5699 assert_eq!(editor.selected_ranges(cx), vec![0..0]);
5700
5701 // Redo the first two transactions together.
5702 editor.redo(&Redo, cx);
5703 assert_eq!(editor.text(cx), "12cde6");
5704 assert_eq!(editor.selected_ranges(cx), vec![5..5]);
5705
5706 // Redo the last transaction on its own.
5707 editor.redo(&Redo, cx);
5708 assert_eq!(editor.text(cx), "ab2cde6");
5709 assert_eq!(editor.selected_ranges(cx), vec![6..6]);
5710
5711 // Test empty transactions.
5712 editor.start_transaction_at(now, cx);
5713 editor.end_transaction_at(now, cx);
5714 editor.undo(&Undo, cx);
5715 assert_eq!(editor.text(cx), "12cde6");
5716 });
5717 }
5718
5719 #[gpui::test]
5720 fn test_selection_with_mouse(cx: &mut gpui::MutableAppContext) {
5721 let buffer = MultiBuffer::build_simple("aaaaaa\nbbbbbb\ncccccc\ndddddd\n", cx);
5722 let settings = EditorSettings::test(cx);
5723 let (_, editor) =
5724 cx.add_window(Default::default(), |cx| build_editor(buffer, settings, cx));
5725
5726 editor.update(cx, |view, cx| {
5727 view.begin_selection(DisplayPoint::new(2, 2), false, 1, cx);
5728 });
5729
5730 assert_eq!(
5731 editor.update(cx, |view, cx| view.selected_display_ranges(cx)),
5732 [DisplayPoint::new(2, 2)..DisplayPoint::new(2, 2)]
5733 );
5734
5735 editor.update(cx, |view, cx| {
5736 view.update_selection(DisplayPoint::new(3, 3), 0, Vector2F::zero(), cx);
5737 });
5738
5739 assert_eq!(
5740 editor.update(cx, |view, cx| view.selected_display_ranges(cx)),
5741 [DisplayPoint::new(2, 2)..DisplayPoint::new(3, 3)]
5742 );
5743
5744 editor.update(cx, |view, cx| {
5745 view.update_selection(DisplayPoint::new(1, 1), 0, Vector2F::zero(), cx);
5746 });
5747
5748 assert_eq!(
5749 editor.update(cx, |view, cx| view.selected_display_ranges(cx)),
5750 [DisplayPoint::new(2, 2)..DisplayPoint::new(1, 1)]
5751 );
5752
5753 editor.update(cx, |view, cx| {
5754 view.end_selection(cx);
5755 view.update_selection(DisplayPoint::new(3, 3), 0, Vector2F::zero(), cx);
5756 });
5757
5758 assert_eq!(
5759 editor.update(cx, |view, cx| view.selected_display_ranges(cx)),
5760 [DisplayPoint::new(2, 2)..DisplayPoint::new(1, 1)]
5761 );
5762
5763 editor.update(cx, |view, cx| {
5764 view.begin_selection(DisplayPoint::new(3, 3), true, 1, cx);
5765 view.update_selection(DisplayPoint::new(0, 0), 0, Vector2F::zero(), cx);
5766 });
5767
5768 assert_eq!(
5769 editor.update(cx, |view, cx| view.selected_display_ranges(cx)),
5770 [
5771 DisplayPoint::new(2, 2)..DisplayPoint::new(1, 1),
5772 DisplayPoint::new(3, 3)..DisplayPoint::new(0, 0)
5773 ]
5774 );
5775
5776 editor.update(cx, |view, cx| {
5777 view.end_selection(cx);
5778 });
5779
5780 assert_eq!(
5781 editor.update(cx, |view, cx| view.selected_display_ranges(cx)),
5782 [DisplayPoint::new(3, 3)..DisplayPoint::new(0, 0)]
5783 );
5784 }
5785
5786 #[gpui::test]
5787 fn test_canceling_pending_selection(cx: &mut gpui::MutableAppContext) {
5788 let buffer = MultiBuffer::build_simple("aaaaaa\nbbbbbb\ncccccc\ndddddd\n", cx);
5789 let settings = EditorSettings::test(cx);
5790 let (_, view) = cx.add_window(Default::default(), |cx| build_editor(buffer, settings, cx));
5791
5792 view.update(cx, |view, cx| {
5793 view.begin_selection(DisplayPoint::new(2, 2), false, 1, cx);
5794 assert_eq!(
5795 view.selected_display_ranges(cx),
5796 [DisplayPoint::new(2, 2)..DisplayPoint::new(2, 2)]
5797 );
5798 });
5799
5800 view.update(cx, |view, cx| {
5801 view.update_selection(DisplayPoint::new(3, 3), 0, Vector2F::zero(), cx);
5802 assert_eq!(
5803 view.selected_display_ranges(cx),
5804 [DisplayPoint::new(2, 2)..DisplayPoint::new(3, 3)]
5805 );
5806 });
5807
5808 view.update(cx, |view, cx| {
5809 view.cancel(&Cancel, cx);
5810 view.update_selection(DisplayPoint::new(1, 1), 0, Vector2F::zero(), cx);
5811 assert_eq!(
5812 view.selected_display_ranges(cx),
5813 [DisplayPoint::new(2, 2)..DisplayPoint::new(3, 3)]
5814 );
5815 });
5816 }
5817
5818 #[gpui::test]
5819 fn test_navigation_history(cx: &mut gpui::MutableAppContext) {
5820 cx.add_window(Default::default(), |cx| {
5821 use workspace::ItemView;
5822 let nav_history = Rc::new(RefCell::new(workspace::NavHistory::default()));
5823 let settings = EditorSettings::test(&cx);
5824 let buffer = MultiBuffer::build_simple(&sample_text(30, 5, 'a'), cx);
5825 let mut editor = build_editor(buffer.clone(), settings, cx);
5826 editor.nav_history = Some(ItemNavHistory::new(nav_history.clone(), &cx.handle()));
5827
5828 // Move the cursor a small distance.
5829 // Nothing is added to the navigation history.
5830 editor.select_display_ranges(&[DisplayPoint::new(1, 0)..DisplayPoint::new(1, 0)], cx);
5831 editor.select_display_ranges(&[DisplayPoint::new(3, 0)..DisplayPoint::new(3, 0)], cx);
5832 assert!(nav_history.borrow_mut().pop_backward().is_none());
5833
5834 // Move the cursor a large distance.
5835 // The history can jump back to the previous position.
5836 editor.select_display_ranges(&[DisplayPoint::new(13, 0)..DisplayPoint::new(13, 3)], cx);
5837 let nav_entry = nav_history.borrow_mut().pop_backward().unwrap();
5838 editor.navigate(nav_entry.data.unwrap(), cx);
5839 assert_eq!(nav_entry.item_view.id(), cx.view_id());
5840 assert_eq!(
5841 editor.selected_display_ranges(cx),
5842 &[DisplayPoint::new(3, 0)..DisplayPoint::new(3, 0)]
5843 );
5844
5845 // Move the cursor a small distance via the mouse.
5846 // Nothing is added to the navigation history.
5847 editor.begin_selection(DisplayPoint::new(5, 0), false, 1, cx);
5848 editor.end_selection(cx);
5849 assert_eq!(
5850 editor.selected_display_ranges(cx),
5851 &[DisplayPoint::new(5, 0)..DisplayPoint::new(5, 0)]
5852 );
5853 assert!(nav_history.borrow_mut().pop_backward().is_none());
5854
5855 // Move the cursor a large distance via the mouse.
5856 // The history can jump back to the previous position.
5857 editor.begin_selection(DisplayPoint::new(15, 0), false, 1, cx);
5858 editor.end_selection(cx);
5859 assert_eq!(
5860 editor.selected_display_ranges(cx),
5861 &[DisplayPoint::new(15, 0)..DisplayPoint::new(15, 0)]
5862 );
5863 let nav_entry = nav_history.borrow_mut().pop_backward().unwrap();
5864 editor.navigate(nav_entry.data.unwrap(), cx);
5865 assert_eq!(nav_entry.item_view.id(), cx.view_id());
5866 assert_eq!(
5867 editor.selected_display_ranges(cx),
5868 &[DisplayPoint::new(5, 0)..DisplayPoint::new(5, 0)]
5869 );
5870
5871 editor
5872 });
5873 }
5874
5875 #[gpui::test]
5876 fn test_cancel(cx: &mut gpui::MutableAppContext) {
5877 let buffer = MultiBuffer::build_simple("aaaaaa\nbbbbbb\ncccccc\ndddddd\n", cx);
5878 let settings = EditorSettings::test(cx);
5879 let (_, view) = cx.add_window(Default::default(), |cx| build_editor(buffer, settings, cx));
5880
5881 view.update(cx, |view, cx| {
5882 view.begin_selection(DisplayPoint::new(3, 4), false, 1, cx);
5883 view.update_selection(DisplayPoint::new(1, 1), 0, Vector2F::zero(), cx);
5884 view.end_selection(cx);
5885
5886 view.begin_selection(DisplayPoint::new(0, 1), true, 1, cx);
5887 view.update_selection(DisplayPoint::new(0, 3), 0, Vector2F::zero(), cx);
5888 view.end_selection(cx);
5889 assert_eq!(
5890 view.selected_display_ranges(cx),
5891 [
5892 DisplayPoint::new(0, 1)..DisplayPoint::new(0, 3),
5893 DisplayPoint::new(3, 4)..DisplayPoint::new(1, 1),
5894 ]
5895 );
5896 });
5897
5898 view.update(cx, |view, cx| {
5899 view.cancel(&Cancel, cx);
5900 assert_eq!(
5901 view.selected_display_ranges(cx),
5902 [DisplayPoint::new(3, 4)..DisplayPoint::new(1, 1)]
5903 );
5904 });
5905
5906 view.update(cx, |view, cx| {
5907 view.cancel(&Cancel, cx);
5908 assert_eq!(
5909 view.selected_display_ranges(cx),
5910 [DisplayPoint::new(1, 1)..DisplayPoint::new(1, 1)]
5911 );
5912 });
5913 }
5914
5915 #[gpui::test]
5916 fn test_fold(cx: &mut gpui::MutableAppContext) {
5917 let buffer = MultiBuffer::build_simple(
5918 &"
5919 impl Foo {
5920 // Hello!
5921
5922 fn a() {
5923 1
5924 }
5925
5926 fn b() {
5927 2
5928 }
5929
5930 fn c() {
5931 3
5932 }
5933 }
5934 "
5935 .unindent(),
5936 cx,
5937 );
5938 let settings = EditorSettings::test(&cx);
5939 let (_, view) = cx.add_window(Default::default(), |cx| {
5940 build_editor(buffer.clone(), settings, cx)
5941 });
5942
5943 view.update(cx, |view, cx| {
5944 view.select_display_ranges(&[DisplayPoint::new(8, 0)..DisplayPoint::new(12, 0)], cx);
5945 view.fold(&Fold, cx);
5946 assert_eq!(
5947 view.display_text(cx),
5948 "
5949 impl Foo {
5950 // Hello!
5951
5952 fn a() {
5953 1
5954 }
5955
5956 fn b() {…
5957 }
5958
5959 fn c() {…
5960 }
5961 }
5962 "
5963 .unindent(),
5964 );
5965
5966 view.fold(&Fold, cx);
5967 assert_eq!(
5968 view.display_text(cx),
5969 "
5970 impl Foo {…
5971 }
5972 "
5973 .unindent(),
5974 );
5975
5976 view.unfold(&Unfold, cx);
5977 assert_eq!(
5978 view.display_text(cx),
5979 "
5980 impl Foo {
5981 // Hello!
5982
5983 fn a() {
5984 1
5985 }
5986
5987 fn b() {…
5988 }
5989
5990 fn c() {…
5991 }
5992 }
5993 "
5994 .unindent(),
5995 );
5996
5997 view.unfold(&Unfold, cx);
5998 assert_eq!(view.display_text(cx), buffer.read(cx).read(cx).text());
5999 });
6000 }
6001
6002 #[gpui::test]
6003 fn test_move_cursor(cx: &mut gpui::MutableAppContext) {
6004 let buffer = MultiBuffer::build_simple(&sample_text(6, 6, 'a'), cx);
6005 let settings = EditorSettings::test(&cx);
6006 let (_, view) = cx.add_window(Default::default(), |cx| {
6007 build_editor(buffer.clone(), settings, cx)
6008 });
6009
6010 buffer.update(cx, |buffer, cx| {
6011 buffer.edit(
6012 vec![
6013 Point::new(1, 0)..Point::new(1, 0),
6014 Point::new(1, 1)..Point::new(1, 1),
6015 ],
6016 "\t",
6017 cx,
6018 );
6019 });
6020
6021 view.update(cx, |view, cx| {
6022 assert_eq!(
6023 view.selected_display_ranges(cx),
6024 &[DisplayPoint::new(0, 0)..DisplayPoint::new(0, 0)]
6025 );
6026
6027 view.move_down(&MoveDown, cx);
6028 assert_eq!(
6029 view.selected_display_ranges(cx),
6030 &[DisplayPoint::new(1, 0)..DisplayPoint::new(1, 0)]
6031 );
6032
6033 view.move_right(&MoveRight, cx);
6034 assert_eq!(
6035 view.selected_display_ranges(cx),
6036 &[DisplayPoint::new(1, 4)..DisplayPoint::new(1, 4)]
6037 );
6038
6039 view.move_left(&MoveLeft, cx);
6040 assert_eq!(
6041 view.selected_display_ranges(cx),
6042 &[DisplayPoint::new(1, 0)..DisplayPoint::new(1, 0)]
6043 );
6044
6045 view.move_up(&MoveUp, cx);
6046 assert_eq!(
6047 view.selected_display_ranges(cx),
6048 &[DisplayPoint::new(0, 0)..DisplayPoint::new(0, 0)]
6049 );
6050
6051 view.move_to_end(&MoveToEnd, cx);
6052 assert_eq!(
6053 view.selected_display_ranges(cx),
6054 &[DisplayPoint::new(5, 6)..DisplayPoint::new(5, 6)]
6055 );
6056
6057 view.move_to_beginning(&MoveToBeginning, cx);
6058 assert_eq!(
6059 view.selected_display_ranges(cx),
6060 &[DisplayPoint::new(0, 0)..DisplayPoint::new(0, 0)]
6061 );
6062
6063 view.select_display_ranges(&[DisplayPoint::new(0, 1)..DisplayPoint::new(0, 2)], cx);
6064 view.select_to_beginning(&SelectToBeginning, cx);
6065 assert_eq!(
6066 view.selected_display_ranges(cx),
6067 &[DisplayPoint::new(0, 1)..DisplayPoint::new(0, 0)]
6068 );
6069
6070 view.select_to_end(&SelectToEnd, cx);
6071 assert_eq!(
6072 view.selected_display_ranges(cx),
6073 &[DisplayPoint::new(0, 1)..DisplayPoint::new(5, 6)]
6074 );
6075 });
6076 }
6077
6078 #[gpui::test]
6079 fn test_move_cursor_multibyte(cx: &mut gpui::MutableAppContext) {
6080 let buffer = MultiBuffer::build_simple("ⓐⓑⓒⓓⓔ\nabcde\nαβγδε\n", cx);
6081 let settings = EditorSettings::test(&cx);
6082 let (_, view) = cx.add_window(Default::default(), |cx| {
6083 build_editor(buffer.clone(), settings, cx)
6084 });
6085
6086 assert_eq!('ⓐ'.len_utf8(), 3);
6087 assert_eq!('α'.len_utf8(), 2);
6088
6089 view.update(cx, |view, cx| {
6090 view.fold_ranges(
6091 vec![
6092 Point::new(0, 6)..Point::new(0, 12),
6093 Point::new(1, 2)..Point::new(1, 4),
6094 Point::new(2, 4)..Point::new(2, 8),
6095 ],
6096 cx,
6097 );
6098 assert_eq!(view.display_text(cx), "ⓐⓑ…ⓔ\nab…e\nαβ…ε\n");
6099
6100 view.move_right(&MoveRight, cx);
6101 assert_eq!(
6102 view.selected_display_ranges(cx),
6103 &[empty_range(0, "ⓐ".len())]
6104 );
6105 view.move_right(&MoveRight, cx);
6106 assert_eq!(
6107 view.selected_display_ranges(cx),
6108 &[empty_range(0, "ⓐⓑ".len())]
6109 );
6110 view.move_right(&MoveRight, cx);
6111 assert_eq!(
6112 view.selected_display_ranges(cx),
6113 &[empty_range(0, "ⓐⓑ…".len())]
6114 );
6115
6116 view.move_down(&MoveDown, cx);
6117 assert_eq!(
6118 view.selected_display_ranges(cx),
6119 &[empty_range(1, "ab…".len())]
6120 );
6121 view.move_left(&MoveLeft, cx);
6122 assert_eq!(
6123 view.selected_display_ranges(cx),
6124 &[empty_range(1, "ab".len())]
6125 );
6126 view.move_left(&MoveLeft, cx);
6127 assert_eq!(
6128 view.selected_display_ranges(cx),
6129 &[empty_range(1, "a".len())]
6130 );
6131
6132 view.move_down(&MoveDown, cx);
6133 assert_eq!(
6134 view.selected_display_ranges(cx),
6135 &[empty_range(2, "α".len())]
6136 );
6137 view.move_right(&MoveRight, cx);
6138 assert_eq!(
6139 view.selected_display_ranges(cx),
6140 &[empty_range(2, "αβ".len())]
6141 );
6142 view.move_right(&MoveRight, cx);
6143 assert_eq!(
6144 view.selected_display_ranges(cx),
6145 &[empty_range(2, "αβ…".len())]
6146 );
6147 view.move_right(&MoveRight, cx);
6148 assert_eq!(
6149 view.selected_display_ranges(cx),
6150 &[empty_range(2, "αβ…ε".len())]
6151 );
6152
6153 view.move_up(&MoveUp, cx);
6154 assert_eq!(
6155 view.selected_display_ranges(cx),
6156 &[empty_range(1, "ab…e".len())]
6157 );
6158 view.move_up(&MoveUp, cx);
6159 assert_eq!(
6160 view.selected_display_ranges(cx),
6161 &[empty_range(0, "ⓐⓑ…ⓔ".len())]
6162 );
6163 view.move_left(&MoveLeft, cx);
6164 assert_eq!(
6165 view.selected_display_ranges(cx),
6166 &[empty_range(0, "ⓐⓑ…".len())]
6167 );
6168 view.move_left(&MoveLeft, cx);
6169 assert_eq!(
6170 view.selected_display_ranges(cx),
6171 &[empty_range(0, "ⓐⓑ".len())]
6172 );
6173 view.move_left(&MoveLeft, cx);
6174 assert_eq!(
6175 view.selected_display_ranges(cx),
6176 &[empty_range(0, "ⓐ".len())]
6177 );
6178 });
6179 }
6180
6181 #[gpui::test]
6182 fn test_move_cursor_different_line_lengths(cx: &mut gpui::MutableAppContext) {
6183 let buffer = MultiBuffer::build_simple("ⓐⓑⓒⓓⓔ\nabcd\nαβγ\nabcd\nⓐⓑⓒⓓⓔ\n", cx);
6184 let settings = EditorSettings::test(&cx);
6185 let (_, view) = cx.add_window(Default::default(), |cx| {
6186 build_editor(buffer.clone(), settings, cx)
6187 });
6188 view.update(cx, |view, cx| {
6189 view.select_display_ranges(&[empty_range(0, "ⓐⓑⓒⓓⓔ".len())], cx);
6190 view.move_down(&MoveDown, cx);
6191 assert_eq!(
6192 view.selected_display_ranges(cx),
6193 &[empty_range(1, "abcd".len())]
6194 );
6195
6196 view.move_down(&MoveDown, cx);
6197 assert_eq!(
6198 view.selected_display_ranges(cx),
6199 &[empty_range(2, "αβγ".len())]
6200 );
6201
6202 view.move_down(&MoveDown, cx);
6203 assert_eq!(
6204 view.selected_display_ranges(cx),
6205 &[empty_range(3, "abcd".len())]
6206 );
6207
6208 view.move_down(&MoveDown, cx);
6209 assert_eq!(
6210 view.selected_display_ranges(cx),
6211 &[empty_range(4, "ⓐⓑⓒⓓⓔ".len())]
6212 );
6213
6214 view.move_up(&MoveUp, cx);
6215 assert_eq!(
6216 view.selected_display_ranges(cx),
6217 &[empty_range(3, "abcd".len())]
6218 );
6219
6220 view.move_up(&MoveUp, cx);
6221 assert_eq!(
6222 view.selected_display_ranges(cx),
6223 &[empty_range(2, "αβγ".len())]
6224 );
6225 });
6226 }
6227
6228 #[gpui::test]
6229 fn test_beginning_end_of_line(cx: &mut gpui::MutableAppContext) {
6230 let buffer = MultiBuffer::build_simple("abc\n def", cx);
6231 let settings = EditorSettings::test(&cx);
6232 let (_, view) = cx.add_window(Default::default(), |cx| build_editor(buffer, settings, cx));
6233 view.update(cx, |view, cx| {
6234 view.select_display_ranges(
6235 &[
6236 DisplayPoint::new(0, 1)..DisplayPoint::new(0, 1),
6237 DisplayPoint::new(1, 4)..DisplayPoint::new(1, 4),
6238 ],
6239 cx,
6240 );
6241 });
6242
6243 view.update(cx, |view, cx| {
6244 view.move_to_beginning_of_line(&MoveToBeginningOfLine, cx);
6245 assert_eq!(
6246 view.selected_display_ranges(cx),
6247 &[
6248 DisplayPoint::new(0, 0)..DisplayPoint::new(0, 0),
6249 DisplayPoint::new(1, 2)..DisplayPoint::new(1, 2),
6250 ]
6251 );
6252 });
6253
6254 view.update(cx, |view, cx| {
6255 view.move_to_beginning_of_line(&MoveToBeginningOfLine, cx);
6256 assert_eq!(
6257 view.selected_display_ranges(cx),
6258 &[
6259 DisplayPoint::new(0, 0)..DisplayPoint::new(0, 0),
6260 DisplayPoint::new(1, 0)..DisplayPoint::new(1, 0),
6261 ]
6262 );
6263 });
6264
6265 view.update(cx, |view, cx| {
6266 view.move_to_beginning_of_line(&MoveToBeginningOfLine, cx);
6267 assert_eq!(
6268 view.selected_display_ranges(cx),
6269 &[
6270 DisplayPoint::new(0, 0)..DisplayPoint::new(0, 0),
6271 DisplayPoint::new(1, 2)..DisplayPoint::new(1, 2),
6272 ]
6273 );
6274 });
6275
6276 view.update(cx, |view, cx| {
6277 view.move_to_end_of_line(&MoveToEndOfLine, cx);
6278 assert_eq!(
6279 view.selected_display_ranges(cx),
6280 &[
6281 DisplayPoint::new(0, 3)..DisplayPoint::new(0, 3),
6282 DisplayPoint::new(1, 5)..DisplayPoint::new(1, 5),
6283 ]
6284 );
6285 });
6286
6287 // Moving to the end of line again is a no-op.
6288 view.update(cx, |view, cx| {
6289 view.move_to_end_of_line(&MoveToEndOfLine, cx);
6290 assert_eq!(
6291 view.selected_display_ranges(cx),
6292 &[
6293 DisplayPoint::new(0, 3)..DisplayPoint::new(0, 3),
6294 DisplayPoint::new(1, 5)..DisplayPoint::new(1, 5),
6295 ]
6296 );
6297 });
6298
6299 view.update(cx, |view, cx| {
6300 view.move_left(&MoveLeft, cx);
6301 view.select_to_beginning_of_line(&SelectToBeginningOfLine(true), cx);
6302 assert_eq!(
6303 view.selected_display_ranges(cx),
6304 &[
6305 DisplayPoint::new(0, 2)..DisplayPoint::new(0, 0),
6306 DisplayPoint::new(1, 4)..DisplayPoint::new(1, 2),
6307 ]
6308 );
6309 });
6310
6311 view.update(cx, |view, cx| {
6312 view.select_to_beginning_of_line(&SelectToBeginningOfLine(true), cx);
6313 assert_eq!(
6314 view.selected_display_ranges(cx),
6315 &[
6316 DisplayPoint::new(0, 2)..DisplayPoint::new(0, 0),
6317 DisplayPoint::new(1, 4)..DisplayPoint::new(1, 0),
6318 ]
6319 );
6320 });
6321
6322 view.update(cx, |view, cx| {
6323 view.select_to_beginning_of_line(&SelectToBeginningOfLine(true), cx);
6324 assert_eq!(
6325 view.selected_display_ranges(cx),
6326 &[
6327 DisplayPoint::new(0, 2)..DisplayPoint::new(0, 0),
6328 DisplayPoint::new(1, 4)..DisplayPoint::new(1, 2),
6329 ]
6330 );
6331 });
6332
6333 view.update(cx, |view, cx| {
6334 view.select_to_end_of_line(&SelectToEndOfLine(true), cx);
6335 assert_eq!(
6336 view.selected_display_ranges(cx),
6337 &[
6338 DisplayPoint::new(0, 2)..DisplayPoint::new(0, 3),
6339 DisplayPoint::new(1, 4)..DisplayPoint::new(1, 5),
6340 ]
6341 );
6342 });
6343
6344 view.update(cx, |view, cx| {
6345 view.delete_to_end_of_line(&DeleteToEndOfLine, cx);
6346 assert_eq!(view.display_text(cx), "ab\n de");
6347 assert_eq!(
6348 view.selected_display_ranges(cx),
6349 &[
6350 DisplayPoint::new(0, 2)..DisplayPoint::new(0, 2),
6351 DisplayPoint::new(1, 4)..DisplayPoint::new(1, 4),
6352 ]
6353 );
6354 });
6355
6356 view.update(cx, |view, cx| {
6357 view.delete_to_beginning_of_line(&DeleteToBeginningOfLine, cx);
6358 assert_eq!(view.display_text(cx), "\n");
6359 assert_eq!(
6360 view.selected_display_ranges(cx),
6361 &[
6362 DisplayPoint::new(0, 0)..DisplayPoint::new(0, 0),
6363 DisplayPoint::new(1, 0)..DisplayPoint::new(1, 0),
6364 ]
6365 );
6366 });
6367 }
6368
6369 #[gpui::test]
6370 fn test_prev_next_word_boundary(cx: &mut gpui::MutableAppContext) {
6371 let buffer = MultiBuffer::build_simple("use std::str::{foo, bar}\n\n {baz.qux()}", cx);
6372 let settings = EditorSettings::test(&cx);
6373 let (_, view) = cx.add_window(Default::default(), |cx| build_editor(buffer, settings, cx));
6374 view.update(cx, |view, cx| {
6375 view.select_display_ranges(
6376 &[
6377 DisplayPoint::new(0, 11)..DisplayPoint::new(0, 11),
6378 DisplayPoint::new(2, 4)..DisplayPoint::new(2, 4),
6379 ],
6380 cx,
6381 );
6382 });
6383
6384 view.update(cx, |view, cx| {
6385 view.move_to_previous_word_boundary(&MoveToPreviousWordBoundary, cx);
6386 assert_eq!(
6387 view.selected_display_ranges(cx),
6388 &[
6389 DisplayPoint::new(0, 9)..DisplayPoint::new(0, 9),
6390 DisplayPoint::new(2, 3)..DisplayPoint::new(2, 3),
6391 ]
6392 );
6393 });
6394
6395 view.update(cx, |view, cx| {
6396 view.move_to_previous_word_boundary(&MoveToPreviousWordBoundary, cx);
6397 assert_eq!(
6398 view.selected_display_ranges(cx),
6399 &[
6400 DisplayPoint::new(0, 7)..DisplayPoint::new(0, 7),
6401 DisplayPoint::new(2, 2)..DisplayPoint::new(2, 2),
6402 ]
6403 );
6404 });
6405
6406 view.update(cx, |view, cx| {
6407 view.move_to_previous_word_boundary(&MoveToPreviousWordBoundary, cx);
6408 assert_eq!(
6409 view.selected_display_ranges(cx),
6410 &[
6411 DisplayPoint::new(0, 4)..DisplayPoint::new(0, 4),
6412 DisplayPoint::new(2, 0)..DisplayPoint::new(2, 0),
6413 ]
6414 );
6415 });
6416
6417 view.update(cx, |view, cx| {
6418 view.move_to_previous_word_boundary(&MoveToPreviousWordBoundary, cx);
6419 assert_eq!(
6420 view.selected_display_ranges(cx),
6421 &[
6422 DisplayPoint::new(0, 0)..DisplayPoint::new(0, 0),
6423 DisplayPoint::new(1, 0)..DisplayPoint::new(1, 0),
6424 ]
6425 );
6426 });
6427
6428 view.update(cx, |view, cx| {
6429 view.move_to_previous_word_boundary(&MoveToPreviousWordBoundary, cx);
6430 assert_eq!(
6431 view.selected_display_ranges(cx),
6432 &[
6433 DisplayPoint::new(0, 0)..DisplayPoint::new(0, 0),
6434 DisplayPoint::new(0, 23)..DisplayPoint::new(0, 23),
6435 ]
6436 );
6437 });
6438
6439 view.update(cx, |view, cx| {
6440 view.move_to_next_word_boundary(&MoveToNextWordBoundary, cx);
6441 assert_eq!(
6442 view.selected_display_ranges(cx),
6443 &[
6444 DisplayPoint::new(0, 3)..DisplayPoint::new(0, 3),
6445 DisplayPoint::new(0, 24)..DisplayPoint::new(0, 24),
6446 ]
6447 );
6448 });
6449
6450 view.update(cx, |view, cx| {
6451 view.move_to_next_word_boundary(&MoveToNextWordBoundary, cx);
6452 assert_eq!(
6453 view.selected_display_ranges(cx),
6454 &[
6455 DisplayPoint::new(0, 7)..DisplayPoint::new(0, 7),
6456 DisplayPoint::new(1, 0)..DisplayPoint::new(1, 0),
6457 ]
6458 );
6459 });
6460
6461 view.update(cx, |view, cx| {
6462 view.move_to_next_word_boundary(&MoveToNextWordBoundary, cx);
6463 assert_eq!(
6464 view.selected_display_ranges(cx),
6465 &[
6466 DisplayPoint::new(0, 9)..DisplayPoint::new(0, 9),
6467 DisplayPoint::new(2, 3)..DisplayPoint::new(2, 3),
6468 ]
6469 );
6470 });
6471
6472 view.update(cx, |view, cx| {
6473 view.move_right(&MoveRight, cx);
6474 view.select_to_previous_word_boundary(&SelectToPreviousWordBoundary, cx);
6475 assert_eq!(
6476 view.selected_display_ranges(cx),
6477 &[
6478 DisplayPoint::new(0, 10)..DisplayPoint::new(0, 9),
6479 DisplayPoint::new(2, 4)..DisplayPoint::new(2, 3),
6480 ]
6481 );
6482 });
6483
6484 view.update(cx, |view, cx| {
6485 view.select_to_previous_word_boundary(&SelectToPreviousWordBoundary, cx);
6486 assert_eq!(
6487 view.selected_display_ranges(cx),
6488 &[
6489 DisplayPoint::new(0, 10)..DisplayPoint::new(0, 7),
6490 DisplayPoint::new(2, 4)..DisplayPoint::new(2, 2),
6491 ]
6492 );
6493 });
6494
6495 view.update(cx, |view, cx| {
6496 view.select_to_next_word_boundary(&SelectToNextWordBoundary, cx);
6497 assert_eq!(
6498 view.selected_display_ranges(cx),
6499 &[
6500 DisplayPoint::new(0, 10)..DisplayPoint::new(0, 9),
6501 DisplayPoint::new(2, 4)..DisplayPoint::new(2, 3),
6502 ]
6503 );
6504 });
6505 }
6506
6507 #[gpui::test]
6508 fn test_prev_next_word_bounds_with_soft_wrap(cx: &mut gpui::MutableAppContext) {
6509 let buffer = MultiBuffer::build_simple("use one::{\n two::three::four::five\n};", cx);
6510 let settings = EditorSettings::test(&cx);
6511 let (_, view) = cx.add_window(Default::default(), |cx| build_editor(buffer, settings, cx));
6512
6513 view.update(cx, |view, cx| {
6514 view.set_wrap_width(Some(140.), cx);
6515 assert_eq!(
6516 view.display_text(cx),
6517 "use one::{\n two::three::\n four::five\n};"
6518 );
6519
6520 view.select_display_ranges(&[DisplayPoint::new(1, 7)..DisplayPoint::new(1, 7)], cx);
6521
6522 view.move_to_next_word_boundary(&MoveToNextWordBoundary, cx);
6523 assert_eq!(
6524 view.selected_display_ranges(cx),
6525 &[DisplayPoint::new(1, 9)..DisplayPoint::new(1, 9)]
6526 );
6527
6528 view.move_to_next_word_boundary(&MoveToNextWordBoundary, cx);
6529 assert_eq!(
6530 view.selected_display_ranges(cx),
6531 &[DisplayPoint::new(1, 14)..DisplayPoint::new(1, 14)]
6532 );
6533
6534 view.move_to_next_word_boundary(&MoveToNextWordBoundary, cx);
6535 assert_eq!(
6536 view.selected_display_ranges(cx),
6537 &[DisplayPoint::new(2, 4)..DisplayPoint::new(2, 4)]
6538 );
6539
6540 view.move_to_next_word_boundary(&MoveToNextWordBoundary, cx);
6541 assert_eq!(
6542 view.selected_display_ranges(cx),
6543 &[DisplayPoint::new(2, 8)..DisplayPoint::new(2, 8)]
6544 );
6545
6546 view.move_to_previous_word_boundary(&MoveToPreviousWordBoundary, cx);
6547 assert_eq!(
6548 view.selected_display_ranges(cx),
6549 &[DisplayPoint::new(2, 4)..DisplayPoint::new(2, 4)]
6550 );
6551
6552 view.move_to_previous_word_boundary(&MoveToPreviousWordBoundary, cx);
6553 assert_eq!(
6554 view.selected_display_ranges(cx),
6555 &[DisplayPoint::new(1, 14)..DisplayPoint::new(1, 14)]
6556 );
6557 });
6558 }
6559
6560 #[gpui::test]
6561 fn test_delete_to_word_boundary(cx: &mut gpui::MutableAppContext) {
6562 let buffer = MultiBuffer::build_simple("one two three four", cx);
6563 let settings = EditorSettings::test(&cx);
6564 let (_, view) = cx.add_window(Default::default(), |cx| {
6565 build_editor(buffer.clone(), settings, cx)
6566 });
6567
6568 view.update(cx, |view, cx| {
6569 view.select_display_ranges(
6570 &[
6571 // an empty selection - the preceding word fragment is deleted
6572 DisplayPoint::new(0, 2)..DisplayPoint::new(0, 2),
6573 // characters selected - they are deleted
6574 DisplayPoint::new(0, 9)..DisplayPoint::new(0, 12),
6575 ],
6576 cx,
6577 );
6578 view.delete_to_previous_word_boundary(&DeleteToPreviousWordBoundary, cx);
6579 });
6580
6581 assert_eq!(buffer.read(cx).read(cx).text(), "e two te four");
6582
6583 view.update(cx, |view, cx| {
6584 view.select_display_ranges(
6585 &[
6586 // an empty selection - the following word fragment is deleted
6587 DisplayPoint::new(0, 3)..DisplayPoint::new(0, 3),
6588 // characters selected - they are deleted
6589 DisplayPoint::new(0, 9)..DisplayPoint::new(0, 10),
6590 ],
6591 cx,
6592 );
6593 view.delete_to_next_word_boundary(&DeleteToNextWordBoundary, cx);
6594 });
6595
6596 assert_eq!(buffer.read(cx).read(cx).text(), "e t te our");
6597 }
6598
6599 #[gpui::test]
6600 fn test_newline(cx: &mut gpui::MutableAppContext) {
6601 let buffer = MultiBuffer::build_simple("aaaa\n bbbb\n", cx);
6602 let settings = EditorSettings::test(&cx);
6603 let (_, view) = cx.add_window(Default::default(), |cx| {
6604 build_editor(buffer.clone(), settings, cx)
6605 });
6606
6607 view.update(cx, |view, cx| {
6608 view.select_display_ranges(
6609 &[
6610 DisplayPoint::new(0, 2)..DisplayPoint::new(0, 2),
6611 DisplayPoint::new(1, 2)..DisplayPoint::new(1, 2),
6612 DisplayPoint::new(1, 6)..DisplayPoint::new(1, 6),
6613 ],
6614 cx,
6615 );
6616
6617 view.newline(&Newline, cx);
6618 assert_eq!(view.text(cx), "aa\naa\n \n bb\n bb\n");
6619 });
6620 }
6621
6622 #[gpui::test]
6623 fn test_newline_with_old_selections(cx: &mut gpui::MutableAppContext) {
6624 let buffer = MultiBuffer::build_simple(
6625 "
6626 a
6627 b(
6628 X
6629 )
6630 c(
6631 X
6632 )
6633 "
6634 .unindent()
6635 .as_str(),
6636 cx,
6637 );
6638
6639 let settings = EditorSettings::test(&cx);
6640 let (_, editor) = cx.add_window(Default::default(), |cx| {
6641 let mut editor = build_editor(buffer.clone(), settings, cx);
6642 editor.select_ranges(
6643 [
6644 Point::new(2, 4)..Point::new(2, 5),
6645 Point::new(5, 4)..Point::new(5, 5),
6646 ],
6647 None,
6648 cx,
6649 );
6650 editor
6651 });
6652
6653 // Edit the buffer directly, deleting ranges surrounding the editor's selections
6654 buffer.update(cx, |buffer, cx| {
6655 buffer.edit(
6656 [
6657 Point::new(1, 2)..Point::new(3, 0),
6658 Point::new(4, 2)..Point::new(6, 0),
6659 ],
6660 "",
6661 cx,
6662 );
6663 assert_eq!(
6664 buffer.read(cx).text(),
6665 "
6666 a
6667 b()
6668 c()
6669 "
6670 .unindent()
6671 );
6672 });
6673
6674 editor.update(cx, |editor, cx| {
6675 assert_eq!(
6676 editor.selected_ranges(cx),
6677 &[
6678 Point::new(1, 2)..Point::new(1, 2),
6679 Point::new(2, 2)..Point::new(2, 2),
6680 ],
6681 );
6682
6683 editor.newline(&Newline, cx);
6684 assert_eq!(
6685 editor.text(cx),
6686 "
6687 a
6688 b(
6689 )
6690 c(
6691 )
6692 "
6693 .unindent()
6694 );
6695
6696 // The selections are moved after the inserted newlines
6697 assert_eq!(
6698 editor.selected_ranges(cx),
6699 &[
6700 Point::new(2, 0)..Point::new(2, 0),
6701 Point::new(4, 0)..Point::new(4, 0),
6702 ],
6703 );
6704 });
6705 }
6706
6707 #[gpui::test]
6708 fn test_insert_with_old_selections(cx: &mut gpui::MutableAppContext) {
6709 let buffer = MultiBuffer::build_simple("a( X ), b( Y ), c( Z )", cx);
6710
6711 let settings = EditorSettings::test(&cx);
6712 let (_, editor) = cx.add_window(Default::default(), |cx| {
6713 let mut editor = build_editor(buffer.clone(), settings, cx);
6714 editor.select_ranges([3..4, 11..12, 19..20], None, cx);
6715 editor
6716 });
6717
6718 // Edit the buffer directly, deleting ranges surrounding the editor's selections
6719 buffer.update(cx, |buffer, cx| {
6720 buffer.edit([2..5, 10..13, 18..21], "", cx);
6721 assert_eq!(buffer.read(cx).text(), "a(), b(), c()".unindent());
6722 });
6723
6724 editor.update(cx, |editor, cx| {
6725 assert_eq!(editor.selected_ranges(cx), &[2..2, 7..7, 12..12],);
6726
6727 editor.insert("Z", cx);
6728 assert_eq!(editor.text(cx), "a(Z), b(Z), c(Z)");
6729
6730 // The selections are moved after the inserted characters
6731 assert_eq!(editor.selected_ranges(cx), &[3..3, 9..9, 15..15],);
6732 });
6733 }
6734
6735 #[gpui::test]
6736 fn test_indent_outdent(cx: &mut gpui::MutableAppContext) {
6737 let buffer = MultiBuffer::build_simple(" one two\nthree\n four", cx);
6738 let settings = EditorSettings::test(&cx);
6739 let (_, view) = cx.add_window(Default::default(), |cx| {
6740 build_editor(buffer.clone(), settings, cx)
6741 });
6742
6743 view.update(cx, |view, cx| {
6744 // two selections on the same line
6745 view.select_display_ranges(
6746 &[
6747 DisplayPoint::new(0, 2)..DisplayPoint::new(0, 5),
6748 DisplayPoint::new(0, 6)..DisplayPoint::new(0, 9),
6749 ],
6750 cx,
6751 );
6752
6753 // indent from mid-tabstop to full tabstop
6754 view.tab(&Tab, cx);
6755 assert_eq!(view.text(cx), " one two\nthree\n four");
6756 assert_eq!(
6757 view.selected_display_ranges(cx),
6758 &[
6759 DisplayPoint::new(0, 4)..DisplayPoint::new(0, 7),
6760 DisplayPoint::new(0, 8)..DisplayPoint::new(0, 11),
6761 ]
6762 );
6763
6764 // outdent from 1 tabstop to 0 tabstops
6765 view.outdent(&Outdent, cx);
6766 assert_eq!(view.text(cx), "one two\nthree\n four");
6767 assert_eq!(
6768 view.selected_display_ranges(cx),
6769 &[
6770 DisplayPoint::new(0, 0)..DisplayPoint::new(0, 3),
6771 DisplayPoint::new(0, 4)..DisplayPoint::new(0, 7),
6772 ]
6773 );
6774
6775 // select across line ending
6776 view.select_display_ranges(&[DisplayPoint::new(1, 1)..DisplayPoint::new(2, 0)], cx);
6777
6778 // indent and outdent affect only the preceding line
6779 view.tab(&Tab, cx);
6780 assert_eq!(view.text(cx), "one two\n three\n four");
6781 assert_eq!(
6782 view.selected_display_ranges(cx),
6783 &[DisplayPoint::new(1, 5)..DisplayPoint::new(2, 0)]
6784 );
6785 view.outdent(&Outdent, cx);
6786 assert_eq!(view.text(cx), "one two\nthree\n four");
6787 assert_eq!(
6788 view.selected_display_ranges(cx),
6789 &[DisplayPoint::new(1, 1)..DisplayPoint::new(2, 0)]
6790 );
6791
6792 // Ensure that indenting/outdenting works when the cursor is at column 0.
6793 view.select_display_ranges(&[DisplayPoint::new(1, 0)..DisplayPoint::new(1, 0)], cx);
6794 view.tab(&Tab, cx);
6795 assert_eq!(view.text(cx), "one two\n three\n four");
6796 assert_eq!(
6797 view.selected_display_ranges(cx),
6798 &[DisplayPoint::new(1, 4)..DisplayPoint::new(1, 4)]
6799 );
6800
6801 view.select_display_ranges(&[DisplayPoint::new(1, 0)..DisplayPoint::new(1, 0)], cx);
6802 view.outdent(&Outdent, cx);
6803 assert_eq!(view.text(cx), "one two\nthree\n four");
6804 assert_eq!(
6805 view.selected_display_ranges(cx),
6806 &[DisplayPoint::new(1, 0)..DisplayPoint::new(1, 0)]
6807 );
6808 });
6809 }
6810
6811 #[gpui::test]
6812 fn test_backspace(cx: &mut gpui::MutableAppContext) {
6813 let buffer =
6814 MultiBuffer::build_simple("one two three\nfour five six\nseven eight nine\nten\n", cx);
6815 let settings = EditorSettings::test(&cx);
6816 let (_, view) = cx.add_window(Default::default(), |cx| {
6817 build_editor(buffer.clone(), settings, cx)
6818 });
6819
6820 view.update(cx, |view, cx| {
6821 view.select_display_ranges(
6822 &[
6823 // an empty selection - the preceding character is deleted
6824 DisplayPoint::new(0, 2)..DisplayPoint::new(0, 2),
6825 // one character selected - it is deleted
6826 DisplayPoint::new(1, 4)..DisplayPoint::new(1, 3),
6827 // a line suffix selected - it is deleted
6828 DisplayPoint::new(2, 6)..DisplayPoint::new(3, 0),
6829 ],
6830 cx,
6831 );
6832 view.backspace(&Backspace, cx);
6833 });
6834
6835 assert_eq!(
6836 buffer.read(cx).read(cx).text(),
6837 "oe two three\nfou five six\nseven ten\n"
6838 );
6839 }
6840
6841 #[gpui::test]
6842 fn test_delete(cx: &mut gpui::MutableAppContext) {
6843 let buffer =
6844 MultiBuffer::build_simple("one two three\nfour five six\nseven eight nine\nten\n", cx);
6845 let settings = EditorSettings::test(&cx);
6846 let (_, view) = cx.add_window(Default::default(), |cx| {
6847 build_editor(buffer.clone(), settings, cx)
6848 });
6849
6850 view.update(cx, |view, cx| {
6851 view.select_display_ranges(
6852 &[
6853 // an empty selection - the following character is deleted
6854 DisplayPoint::new(0, 2)..DisplayPoint::new(0, 2),
6855 // one character selected - it is deleted
6856 DisplayPoint::new(1, 4)..DisplayPoint::new(1, 3),
6857 // a line suffix selected - it is deleted
6858 DisplayPoint::new(2, 6)..DisplayPoint::new(3, 0),
6859 ],
6860 cx,
6861 );
6862 view.delete(&Delete, cx);
6863 });
6864
6865 assert_eq!(
6866 buffer.read(cx).read(cx).text(),
6867 "on two three\nfou five six\nseven ten\n"
6868 );
6869 }
6870
6871 #[gpui::test]
6872 fn test_delete_line(cx: &mut gpui::MutableAppContext) {
6873 let settings = EditorSettings::test(&cx);
6874 let buffer = MultiBuffer::build_simple("abc\ndef\nghi\n", cx);
6875 let (_, view) = cx.add_window(Default::default(), |cx| build_editor(buffer, settings, cx));
6876 view.update(cx, |view, cx| {
6877 view.select_display_ranges(
6878 &[
6879 DisplayPoint::new(0, 1)..DisplayPoint::new(0, 1),
6880 DisplayPoint::new(1, 0)..DisplayPoint::new(1, 1),
6881 DisplayPoint::new(3, 0)..DisplayPoint::new(3, 0),
6882 ],
6883 cx,
6884 );
6885 view.delete_line(&DeleteLine, cx);
6886 assert_eq!(view.display_text(cx), "ghi");
6887 assert_eq!(
6888 view.selected_display_ranges(cx),
6889 vec![
6890 DisplayPoint::new(0, 0)..DisplayPoint::new(0, 0),
6891 DisplayPoint::new(0, 1)..DisplayPoint::new(0, 1)
6892 ]
6893 );
6894 });
6895
6896 let settings = EditorSettings::test(&cx);
6897 let buffer = MultiBuffer::build_simple("abc\ndef\nghi\n", cx);
6898 let (_, view) = cx.add_window(Default::default(), |cx| build_editor(buffer, settings, cx));
6899 view.update(cx, |view, cx| {
6900 view.select_display_ranges(&[DisplayPoint::new(2, 0)..DisplayPoint::new(0, 1)], cx);
6901 view.delete_line(&DeleteLine, cx);
6902 assert_eq!(view.display_text(cx), "ghi\n");
6903 assert_eq!(
6904 view.selected_display_ranges(cx),
6905 vec![DisplayPoint::new(0, 1)..DisplayPoint::new(0, 1)]
6906 );
6907 });
6908 }
6909
6910 #[gpui::test]
6911 fn test_duplicate_line(cx: &mut gpui::MutableAppContext) {
6912 let settings = EditorSettings::test(&cx);
6913 let buffer = MultiBuffer::build_simple("abc\ndef\nghi\n", cx);
6914 let (_, view) = cx.add_window(Default::default(), |cx| build_editor(buffer, settings, cx));
6915 view.update(cx, |view, cx| {
6916 view.select_display_ranges(
6917 &[
6918 DisplayPoint::new(0, 0)..DisplayPoint::new(0, 1),
6919 DisplayPoint::new(0, 2)..DisplayPoint::new(0, 2),
6920 DisplayPoint::new(1, 0)..DisplayPoint::new(1, 0),
6921 DisplayPoint::new(3, 0)..DisplayPoint::new(3, 0),
6922 ],
6923 cx,
6924 );
6925 view.duplicate_line(&DuplicateLine, cx);
6926 assert_eq!(view.display_text(cx), "abc\nabc\ndef\ndef\nghi\n\n");
6927 assert_eq!(
6928 view.selected_display_ranges(cx),
6929 vec![
6930 DisplayPoint::new(1, 0)..DisplayPoint::new(1, 1),
6931 DisplayPoint::new(1, 2)..DisplayPoint::new(1, 2),
6932 DisplayPoint::new(3, 0)..DisplayPoint::new(3, 0),
6933 DisplayPoint::new(6, 0)..DisplayPoint::new(6, 0),
6934 ]
6935 );
6936 });
6937
6938 let settings = EditorSettings::test(&cx);
6939 let buffer = MultiBuffer::build_simple("abc\ndef\nghi\n", cx);
6940 let (_, view) = cx.add_window(Default::default(), |cx| build_editor(buffer, settings, cx));
6941 view.update(cx, |view, cx| {
6942 view.select_display_ranges(
6943 &[
6944 DisplayPoint::new(0, 1)..DisplayPoint::new(1, 1),
6945 DisplayPoint::new(1, 2)..DisplayPoint::new(2, 1),
6946 ],
6947 cx,
6948 );
6949 view.duplicate_line(&DuplicateLine, cx);
6950 assert_eq!(view.display_text(cx), "abc\ndef\nghi\nabc\ndef\nghi\n");
6951 assert_eq!(
6952 view.selected_display_ranges(cx),
6953 vec![
6954 DisplayPoint::new(3, 1)..DisplayPoint::new(4, 1),
6955 DisplayPoint::new(4, 2)..DisplayPoint::new(5, 1),
6956 ]
6957 );
6958 });
6959 }
6960
6961 #[gpui::test]
6962 fn test_move_line_up_down(cx: &mut gpui::MutableAppContext) {
6963 let settings = EditorSettings::test(&cx);
6964 let buffer = MultiBuffer::build_simple(&sample_text(10, 5, 'a'), cx);
6965 let (_, view) = cx.add_window(Default::default(), |cx| build_editor(buffer, settings, cx));
6966 view.update(cx, |view, cx| {
6967 view.fold_ranges(
6968 vec![
6969 Point::new(0, 2)..Point::new(1, 2),
6970 Point::new(2, 3)..Point::new(4, 1),
6971 Point::new(7, 0)..Point::new(8, 4),
6972 ],
6973 cx,
6974 );
6975 view.select_display_ranges(
6976 &[
6977 DisplayPoint::new(0, 1)..DisplayPoint::new(0, 1),
6978 DisplayPoint::new(3, 1)..DisplayPoint::new(3, 1),
6979 DisplayPoint::new(3, 2)..DisplayPoint::new(4, 3),
6980 DisplayPoint::new(5, 0)..DisplayPoint::new(5, 2),
6981 ],
6982 cx,
6983 );
6984 assert_eq!(
6985 view.display_text(cx),
6986 "aa…bbb\nccc…eeee\nfffff\nggggg\n…i\njjjjj"
6987 );
6988
6989 view.move_line_up(&MoveLineUp, cx);
6990 assert_eq!(
6991 view.display_text(cx),
6992 "aa…bbb\nccc…eeee\nggggg\n…i\njjjjj\nfffff"
6993 );
6994 assert_eq!(
6995 view.selected_display_ranges(cx),
6996 vec![
6997 DisplayPoint::new(0, 1)..DisplayPoint::new(0, 1),
6998 DisplayPoint::new(2, 1)..DisplayPoint::new(2, 1),
6999 DisplayPoint::new(2, 2)..DisplayPoint::new(3, 3),
7000 DisplayPoint::new(4, 0)..DisplayPoint::new(4, 2)
7001 ]
7002 );
7003 });
7004
7005 view.update(cx, |view, cx| {
7006 view.move_line_down(&MoveLineDown, cx);
7007 assert_eq!(
7008 view.display_text(cx),
7009 "ccc…eeee\naa…bbb\nfffff\nggggg\n…i\njjjjj"
7010 );
7011 assert_eq!(
7012 view.selected_display_ranges(cx),
7013 vec![
7014 DisplayPoint::new(1, 1)..DisplayPoint::new(1, 1),
7015 DisplayPoint::new(3, 1)..DisplayPoint::new(3, 1),
7016 DisplayPoint::new(3, 2)..DisplayPoint::new(4, 3),
7017 DisplayPoint::new(5, 0)..DisplayPoint::new(5, 2)
7018 ]
7019 );
7020 });
7021
7022 view.update(cx, |view, cx| {
7023 view.move_line_down(&MoveLineDown, cx);
7024 assert_eq!(
7025 view.display_text(cx),
7026 "ccc…eeee\nfffff\naa…bbb\nggggg\n…i\njjjjj"
7027 );
7028 assert_eq!(
7029 view.selected_display_ranges(cx),
7030 vec![
7031 DisplayPoint::new(2, 1)..DisplayPoint::new(2, 1),
7032 DisplayPoint::new(3, 1)..DisplayPoint::new(3, 1),
7033 DisplayPoint::new(3, 2)..DisplayPoint::new(4, 3),
7034 DisplayPoint::new(5, 0)..DisplayPoint::new(5, 2)
7035 ]
7036 );
7037 });
7038
7039 view.update(cx, |view, cx| {
7040 view.move_line_up(&MoveLineUp, cx);
7041 assert_eq!(
7042 view.display_text(cx),
7043 "ccc…eeee\naa…bbb\nggggg\n…i\njjjjj\nfffff"
7044 );
7045 assert_eq!(
7046 view.selected_display_ranges(cx),
7047 vec![
7048 DisplayPoint::new(1, 1)..DisplayPoint::new(1, 1),
7049 DisplayPoint::new(2, 1)..DisplayPoint::new(2, 1),
7050 DisplayPoint::new(2, 2)..DisplayPoint::new(3, 3),
7051 DisplayPoint::new(4, 0)..DisplayPoint::new(4, 2)
7052 ]
7053 );
7054 });
7055 }
7056
7057 #[gpui::test]
7058 fn test_move_line_up_down_with_blocks(cx: &mut gpui::MutableAppContext) {
7059 let settings = EditorSettings::test(&cx);
7060 let buffer = MultiBuffer::build_simple(&sample_text(10, 5, 'a'), cx);
7061 let snapshot = buffer.read(cx).snapshot(cx);
7062 let (_, editor) =
7063 cx.add_window(Default::default(), |cx| build_editor(buffer, settings, cx));
7064 editor.update(cx, |editor, cx| {
7065 editor.insert_blocks(
7066 [BlockProperties {
7067 position: snapshot.anchor_after(Point::new(2, 0)),
7068 disposition: BlockDisposition::Below,
7069 height: 1,
7070 render: Arc::new(|_| Empty::new().boxed()),
7071 }],
7072 cx,
7073 );
7074 editor.select_ranges([Point::new(2, 0)..Point::new(2, 0)], None, cx);
7075 editor.move_line_down(&MoveLineDown, cx);
7076 });
7077 }
7078
7079 #[gpui::test]
7080 fn test_clipboard(cx: &mut gpui::MutableAppContext) {
7081 let buffer = MultiBuffer::build_simple("one✅ two three four five six ", cx);
7082 let settings = EditorSettings::test(&cx);
7083 let view = cx
7084 .add_window(Default::default(), |cx| {
7085 build_editor(buffer.clone(), settings, cx)
7086 })
7087 .1;
7088
7089 // Cut with three selections. Clipboard text is divided into three slices.
7090 view.update(cx, |view, cx| {
7091 view.select_ranges(vec![0..7, 11..17, 22..27], None, cx);
7092 view.cut(&Cut, cx);
7093 assert_eq!(view.display_text(cx), "two four six ");
7094 });
7095
7096 // Paste with three cursors. Each cursor pastes one slice of the clipboard text.
7097 view.update(cx, |view, cx| {
7098 view.select_ranges(vec![4..4, 9..9, 13..13], None, cx);
7099 view.paste(&Paste, cx);
7100 assert_eq!(view.display_text(cx), "two one✅ four three six five ");
7101 assert_eq!(
7102 view.selected_display_ranges(cx),
7103 &[
7104 DisplayPoint::new(0, 11)..DisplayPoint::new(0, 11),
7105 DisplayPoint::new(0, 22)..DisplayPoint::new(0, 22),
7106 DisplayPoint::new(0, 31)..DisplayPoint::new(0, 31)
7107 ]
7108 );
7109 });
7110
7111 // Paste again but with only two cursors. Since the number of cursors doesn't
7112 // match the number of slices in the clipboard, the entire clipboard text
7113 // is pasted at each cursor.
7114 view.update(cx, |view, cx| {
7115 view.select_ranges(vec![0..0, 31..31], None, cx);
7116 view.handle_input(&Input("( ".into()), cx);
7117 view.paste(&Paste, cx);
7118 view.handle_input(&Input(") ".into()), cx);
7119 assert_eq!(
7120 view.display_text(cx),
7121 "( one✅ three five ) two one✅ four three six five ( one✅ three five ) "
7122 );
7123 });
7124
7125 view.update(cx, |view, cx| {
7126 view.select_ranges(vec![0..0], None, cx);
7127 view.handle_input(&Input("123\n4567\n89\n".into()), cx);
7128 assert_eq!(
7129 view.display_text(cx),
7130 "123\n4567\n89\n( one✅ three five ) two one✅ four three six five ( one✅ three five ) "
7131 );
7132 });
7133
7134 // Cut with three selections, one of which is full-line.
7135 view.update(cx, |view, cx| {
7136 view.select_display_ranges(
7137 &[
7138 DisplayPoint::new(0, 1)..DisplayPoint::new(0, 2),
7139 DisplayPoint::new(1, 1)..DisplayPoint::new(1, 1),
7140 DisplayPoint::new(2, 0)..DisplayPoint::new(2, 1),
7141 ],
7142 cx,
7143 );
7144 view.cut(&Cut, cx);
7145 assert_eq!(
7146 view.display_text(cx),
7147 "13\n9\n( one✅ three five ) two one✅ four three six five ( one✅ three five ) "
7148 );
7149 });
7150
7151 // Paste with three selections, noticing how the copied selection that was full-line
7152 // gets inserted before the second cursor.
7153 view.update(cx, |view, cx| {
7154 view.select_display_ranges(
7155 &[
7156 DisplayPoint::new(0, 1)..DisplayPoint::new(0, 1),
7157 DisplayPoint::new(1, 1)..DisplayPoint::new(1, 1),
7158 DisplayPoint::new(2, 2)..DisplayPoint::new(2, 3),
7159 ],
7160 cx,
7161 );
7162 view.paste(&Paste, cx);
7163 assert_eq!(
7164 view.display_text(cx),
7165 "123\n4567\n9\n( 8ne✅ three five ) two one✅ four three six five ( one✅ three five ) "
7166 );
7167 assert_eq!(
7168 view.selected_display_ranges(cx),
7169 &[
7170 DisplayPoint::new(0, 2)..DisplayPoint::new(0, 2),
7171 DisplayPoint::new(2, 1)..DisplayPoint::new(2, 1),
7172 DisplayPoint::new(3, 3)..DisplayPoint::new(3, 3),
7173 ]
7174 );
7175 });
7176
7177 // Copy with a single cursor only, which writes the whole line into the clipboard.
7178 view.update(cx, |view, cx| {
7179 view.select_display_ranges(&[DisplayPoint::new(0, 1)..DisplayPoint::new(0, 1)], cx);
7180 view.copy(&Copy, cx);
7181 });
7182
7183 // Paste with three selections, noticing how the copied full-line selection is inserted
7184 // before the empty selections but replaces the selection that is non-empty.
7185 view.update(cx, |view, cx| {
7186 view.select_display_ranges(
7187 &[
7188 DisplayPoint::new(0, 1)..DisplayPoint::new(0, 1),
7189 DisplayPoint::new(1, 0)..DisplayPoint::new(1, 2),
7190 DisplayPoint::new(2, 1)..DisplayPoint::new(2, 1),
7191 ],
7192 cx,
7193 );
7194 view.paste(&Paste, cx);
7195 assert_eq!(
7196 view.display_text(cx),
7197 "123\n123\n123\n67\n123\n9\n( 8ne✅ three five ) two one✅ four three six five ( one✅ three five ) "
7198 );
7199 assert_eq!(
7200 view.selected_display_ranges(cx),
7201 &[
7202 DisplayPoint::new(1, 1)..DisplayPoint::new(1, 1),
7203 DisplayPoint::new(3, 0)..DisplayPoint::new(3, 0),
7204 DisplayPoint::new(5, 1)..DisplayPoint::new(5, 1),
7205 ]
7206 );
7207 });
7208 }
7209
7210 #[gpui::test]
7211 fn test_select_all(cx: &mut gpui::MutableAppContext) {
7212 let buffer = MultiBuffer::build_simple("abc\nde\nfgh", cx);
7213 let settings = EditorSettings::test(&cx);
7214 let (_, view) = cx.add_window(Default::default(), |cx| build_editor(buffer, settings, cx));
7215 view.update(cx, |view, cx| {
7216 view.select_all(&SelectAll, cx);
7217 assert_eq!(
7218 view.selected_display_ranges(cx),
7219 &[DisplayPoint::new(0, 0)..DisplayPoint::new(2, 3)]
7220 );
7221 });
7222 }
7223
7224 #[gpui::test]
7225 fn test_select_line(cx: &mut gpui::MutableAppContext) {
7226 let settings = EditorSettings::test(&cx);
7227 let buffer = MultiBuffer::build_simple(&sample_text(6, 5, 'a'), cx);
7228 let (_, view) = cx.add_window(Default::default(), |cx| build_editor(buffer, settings, cx));
7229 view.update(cx, |view, cx| {
7230 view.select_display_ranges(
7231 &[
7232 DisplayPoint::new(0, 0)..DisplayPoint::new(0, 1),
7233 DisplayPoint::new(0, 2)..DisplayPoint::new(0, 2),
7234 DisplayPoint::new(1, 0)..DisplayPoint::new(1, 0),
7235 DisplayPoint::new(4, 2)..DisplayPoint::new(4, 2),
7236 ],
7237 cx,
7238 );
7239 view.select_line(&SelectLine, cx);
7240 assert_eq!(
7241 view.selected_display_ranges(cx),
7242 vec![
7243 DisplayPoint::new(0, 0)..DisplayPoint::new(2, 0),
7244 DisplayPoint::new(4, 0)..DisplayPoint::new(5, 0),
7245 ]
7246 );
7247 });
7248
7249 view.update(cx, |view, cx| {
7250 view.select_line(&SelectLine, cx);
7251 assert_eq!(
7252 view.selected_display_ranges(cx),
7253 vec![
7254 DisplayPoint::new(0, 0)..DisplayPoint::new(3, 0),
7255 DisplayPoint::new(4, 0)..DisplayPoint::new(5, 5),
7256 ]
7257 );
7258 });
7259
7260 view.update(cx, |view, cx| {
7261 view.select_line(&SelectLine, cx);
7262 assert_eq!(
7263 view.selected_display_ranges(cx),
7264 vec![DisplayPoint::new(0, 0)..DisplayPoint::new(5, 5)]
7265 );
7266 });
7267 }
7268
7269 #[gpui::test]
7270 fn test_split_selection_into_lines(cx: &mut gpui::MutableAppContext) {
7271 let settings = EditorSettings::test(&cx);
7272 let buffer = MultiBuffer::build_simple(&sample_text(9, 5, 'a'), cx);
7273 let (_, view) = cx.add_window(Default::default(), |cx| build_editor(buffer, settings, cx));
7274 view.update(cx, |view, cx| {
7275 view.fold_ranges(
7276 vec![
7277 Point::new(0, 2)..Point::new(1, 2),
7278 Point::new(2, 3)..Point::new(4, 1),
7279 Point::new(7, 0)..Point::new(8, 4),
7280 ],
7281 cx,
7282 );
7283 view.select_display_ranges(
7284 &[
7285 DisplayPoint::new(0, 0)..DisplayPoint::new(0, 1),
7286 DisplayPoint::new(0, 2)..DisplayPoint::new(0, 2),
7287 DisplayPoint::new(1, 0)..DisplayPoint::new(1, 0),
7288 DisplayPoint::new(4, 4)..DisplayPoint::new(4, 4),
7289 ],
7290 cx,
7291 );
7292 assert_eq!(view.display_text(cx), "aa…bbb\nccc…eeee\nfffff\nggggg\n…i");
7293 });
7294
7295 view.update(cx, |view, cx| {
7296 view.split_selection_into_lines(&SplitSelectionIntoLines, cx);
7297 assert_eq!(
7298 view.display_text(cx),
7299 "aaaaa\nbbbbb\nccc…eeee\nfffff\nggggg\n…i"
7300 );
7301 assert_eq!(
7302 view.selected_display_ranges(cx),
7303 [
7304 DisplayPoint::new(0, 1)..DisplayPoint::new(0, 1),
7305 DisplayPoint::new(0, 2)..DisplayPoint::new(0, 2),
7306 DisplayPoint::new(2, 0)..DisplayPoint::new(2, 0),
7307 DisplayPoint::new(5, 4)..DisplayPoint::new(5, 4)
7308 ]
7309 );
7310 });
7311
7312 view.update(cx, |view, cx| {
7313 view.select_display_ranges(&[DisplayPoint::new(5, 0)..DisplayPoint::new(0, 1)], cx);
7314 view.split_selection_into_lines(&SplitSelectionIntoLines, cx);
7315 assert_eq!(
7316 view.display_text(cx),
7317 "aaaaa\nbbbbb\nccccc\nddddd\neeeee\nfffff\nggggg\nhhhhh\niiiii"
7318 );
7319 assert_eq!(
7320 view.selected_display_ranges(cx),
7321 [
7322 DisplayPoint::new(0, 5)..DisplayPoint::new(0, 5),
7323 DisplayPoint::new(1, 5)..DisplayPoint::new(1, 5),
7324 DisplayPoint::new(2, 5)..DisplayPoint::new(2, 5),
7325 DisplayPoint::new(3, 5)..DisplayPoint::new(3, 5),
7326 DisplayPoint::new(4, 5)..DisplayPoint::new(4, 5),
7327 DisplayPoint::new(5, 5)..DisplayPoint::new(5, 5),
7328 DisplayPoint::new(6, 5)..DisplayPoint::new(6, 5),
7329 DisplayPoint::new(7, 0)..DisplayPoint::new(7, 0)
7330 ]
7331 );
7332 });
7333 }
7334
7335 #[gpui::test]
7336 fn test_add_selection_above_below(cx: &mut gpui::MutableAppContext) {
7337 let settings = EditorSettings::test(&cx);
7338 let buffer = MultiBuffer::build_simple("abc\ndefghi\n\njk\nlmno\n", cx);
7339 let (_, view) = cx.add_window(Default::default(), |cx| build_editor(buffer, settings, cx));
7340
7341 view.update(cx, |view, cx| {
7342 view.select_display_ranges(&[DisplayPoint::new(1, 3)..DisplayPoint::new(1, 3)], cx);
7343 });
7344 view.update(cx, |view, cx| {
7345 view.add_selection_above(&AddSelectionAbove, cx);
7346 assert_eq!(
7347 view.selected_display_ranges(cx),
7348 vec![
7349 DisplayPoint::new(0, 3)..DisplayPoint::new(0, 3),
7350 DisplayPoint::new(1, 3)..DisplayPoint::new(1, 3)
7351 ]
7352 );
7353 });
7354
7355 view.update(cx, |view, cx| {
7356 view.add_selection_above(&AddSelectionAbove, cx);
7357 assert_eq!(
7358 view.selected_display_ranges(cx),
7359 vec![
7360 DisplayPoint::new(0, 3)..DisplayPoint::new(0, 3),
7361 DisplayPoint::new(1, 3)..DisplayPoint::new(1, 3)
7362 ]
7363 );
7364 });
7365
7366 view.update(cx, |view, cx| {
7367 view.add_selection_below(&AddSelectionBelow, cx);
7368 assert_eq!(
7369 view.selected_display_ranges(cx),
7370 vec![DisplayPoint::new(1, 3)..DisplayPoint::new(1, 3)]
7371 );
7372 });
7373
7374 view.update(cx, |view, cx| {
7375 view.add_selection_below(&AddSelectionBelow, cx);
7376 assert_eq!(
7377 view.selected_display_ranges(cx),
7378 vec![
7379 DisplayPoint::new(1, 3)..DisplayPoint::new(1, 3),
7380 DisplayPoint::new(4, 3)..DisplayPoint::new(4, 3)
7381 ]
7382 );
7383 });
7384
7385 view.update(cx, |view, cx| {
7386 view.add_selection_below(&AddSelectionBelow, cx);
7387 assert_eq!(
7388 view.selected_display_ranges(cx),
7389 vec![
7390 DisplayPoint::new(1, 3)..DisplayPoint::new(1, 3),
7391 DisplayPoint::new(4, 3)..DisplayPoint::new(4, 3)
7392 ]
7393 );
7394 });
7395
7396 view.update(cx, |view, cx| {
7397 view.select_display_ranges(&[DisplayPoint::new(1, 4)..DisplayPoint::new(1, 3)], cx);
7398 });
7399 view.update(cx, |view, cx| {
7400 view.add_selection_below(&AddSelectionBelow, cx);
7401 assert_eq!(
7402 view.selected_display_ranges(cx),
7403 vec![
7404 DisplayPoint::new(1, 4)..DisplayPoint::new(1, 3),
7405 DisplayPoint::new(4, 4)..DisplayPoint::new(4, 3)
7406 ]
7407 );
7408 });
7409
7410 view.update(cx, |view, cx| {
7411 view.add_selection_below(&AddSelectionBelow, cx);
7412 assert_eq!(
7413 view.selected_display_ranges(cx),
7414 vec![
7415 DisplayPoint::new(1, 4)..DisplayPoint::new(1, 3),
7416 DisplayPoint::new(4, 4)..DisplayPoint::new(4, 3)
7417 ]
7418 );
7419 });
7420
7421 view.update(cx, |view, cx| {
7422 view.add_selection_above(&AddSelectionAbove, cx);
7423 assert_eq!(
7424 view.selected_display_ranges(cx),
7425 vec![DisplayPoint::new(1, 4)..DisplayPoint::new(1, 3)]
7426 );
7427 });
7428
7429 view.update(cx, |view, cx| {
7430 view.add_selection_above(&AddSelectionAbove, cx);
7431 assert_eq!(
7432 view.selected_display_ranges(cx),
7433 vec![DisplayPoint::new(1, 4)..DisplayPoint::new(1, 3)]
7434 );
7435 });
7436
7437 view.update(cx, |view, cx| {
7438 view.select_display_ranges(&[DisplayPoint::new(0, 1)..DisplayPoint::new(1, 4)], cx);
7439 view.add_selection_below(&AddSelectionBelow, cx);
7440 assert_eq!(
7441 view.selected_display_ranges(cx),
7442 vec![
7443 DisplayPoint::new(0, 1)..DisplayPoint::new(0, 3),
7444 DisplayPoint::new(1, 1)..DisplayPoint::new(1, 4),
7445 DisplayPoint::new(3, 1)..DisplayPoint::new(3, 2),
7446 ]
7447 );
7448 });
7449
7450 view.update(cx, |view, cx| {
7451 view.add_selection_below(&AddSelectionBelow, cx);
7452 assert_eq!(
7453 view.selected_display_ranges(cx),
7454 vec![
7455 DisplayPoint::new(0, 1)..DisplayPoint::new(0, 3),
7456 DisplayPoint::new(1, 1)..DisplayPoint::new(1, 4),
7457 DisplayPoint::new(3, 1)..DisplayPoint::new(3, 2),
7458 DisplayPoint::new(4, 1)..DisplayPoint::new(4, 4),
7459 ]
7460 );
7461 });
7462
7463 view.update(cx, |view, cx| {
7464 view.add_selection_above(&AddSelectionAbove, cx);
7465 assert_eq!(
7466 view.selected_display_ranges(cx),
7467 vec![
7468 DisplayPoint::new(0, 1)..DisplayPoint::new(0, 3),
7469 DisplayPoint::new(1, 1)..DisplayPoint::new(1, 4),
7470 DisplayPoint::new(3, 1)..DisplayPoint::new(3, 2),
7471 ]
7472 );
7473 });
7474
7475 view.update(cx, |view, cx| {
7476 view.select_display_ranges(&[DisplayPoint::new(4, 3)..DisplayPoint::new(1, 1)], cx);
7477 });
7478 view.update(cx, |view, cx| {
7479 view.add_selection_above(&AddSelectionAbove, cx);
7480 assert_eq!(
7481 view.selected_display_ranges(cx),
7482 vec![
7483 DisplayPoint::new(0, 3)..DisplayPoint::new(0, 1),
7484 DisplayPoint::new(1, 3)..DisplayPoint::new(1, 1),
7485 DisplayPoint::new(3, 2)..DisplayPoint::new(3, 1),
7486 DisplayPoint::new(4, 3)..DisplayPoint::new(4, 1),
7487 ]
7488 );
7489 });
7490
7491 view.update(cx, |view, cx| {
7492 view.add_selection_below(&AddSelectionBelow, cx);
7493 assert_eq!(
7494 view.selected_display_ranges(cx),
7495 vec![
7496 DisplayPoint::new(1, 3)..DisplayPoint::new(1, 1),
7497 DisplayPoint::new(3, 2)..DisplayPoint::new(3, 1),
7498 DisplayPoint::new(4, 3)..DisplayPoint::new(4, 1),
7499 ]
7500 );
7501 });
7502 }
7503
7504 #[gpui::test]
7505 async fn test_select_larger_smaller_syntax_node(mut cx: gpui::TestAppContext) {
7506 let settings = cx.read(EditorSettings::test);
7507 let language = Arc::new(Language::new(
7508 LanguageConfig::default(),
7509 Some(tree_sitter_rust::language()),
7510 ));
7511
7512 let text = r#"
7513 use mod1::mod2::{mod3, mod4};
7514
7515 fn fn_1(param1: bool, param2: &str) {
7516 let var1 = "text";
7517 }
7518 "#
7519 .unindent();
7520
7521 let buffer = cx.add_model(|cx| Buffer::new(0, text, cx).with_language(language, cx));
7522 let buffer = cx.add_model(|cx| MultiBuffer::singleton(buffer, cx));
7523 let (_, view) = cx.add_window(|cx| build_editor(buffer, settings, cx));
7524 view.condition(&cx, |view, cx| !view.buffer.read(cx).is_parsing(cx))
7525 .await;
7526
7527 view.update(&mut cx, |view, cx| {
7528 view.select_display_ranges(
7529 &[
7530 DisplayPoint::new(0, 25)..DisplayPoint::new(0, 25),
7531 DisplayPoint::new(2, 24)..DisplayPoint::new(2, 12),
7532 DisplayPoint::new(3, 18)..DisplayPoint::new(3, 18),
7533 ],
7534 cx,
7535 );
7536 view.select_larger_syntax_node(&SelectLargerSyntaxNode, cx);
7537 });
7538 assert_eq!(
7539 view.update(&mut cx, |view, cx| view.selected_display_ranges(cx)),
7540 &[
7541 DisplayPoint::new(0, 23)..DisplayPoint::new(0, 27),
7542 DisplayPoint::new(2, 35)..DisplayPoint::new(2, 7),
7543 DisplayPoint::new(3, 15)..DisplayPoint::new(3, 21),
7544 ]
7545 );
7546
7547 view.update(&mut cx, |view, cx| {
7548 view.select_larger_syntax_node(&SelectLargerSyntaxNode, cx);
7549 });
7550 assert_eq!(
7551 view.update(&mut cx, |view, cx| view.selected_display_ranges(cx)),
7552 &[
7553 DisplayPoint::new(0, 16)..DisplayPoint::new(0, 28),
7554 DisplayPoint::new(4, 1)..DisplayPoint::new(2, 0),
7555 ]
7556 );
7557
7558 view.update(&mut cx, |view, cx| {
7559 view.select_larger_syntax_node(&SelectLargerSyntaxNode, cx);
7560 });
7561 assert_eq!(
7562 view.update(&mut cx, |view, cx| view.selected_display_ranges(cx)),
7563 &[DisplayPoint::new(5, 0)..DisplayPoint::new(0, 0)]
7564 );
7565
7566 // Trying to expand the selected syntax node one more time has no effect.
7567 view.update(&mut cx, |view, cx| {
7568 view.select_larger_syntax_node(&SelectLargerSyntaxNode, cx);
7569 });
7570 assert_eq!(
7571 view.update(&mut cx, |view, cx| view.selected_display_ranges(cx)),
7572 &[DisplayPoint::new(5, 0)..DisplayPoint::new(0, 0)]
7573 );
7574
7575 view.update(&mut cx, |view, cx| {
7576 view.select_smaller_syntax_node(&SelectSmallerSyntaxNode, cx);
7577 });
7578 assert_eq!(
7579 view.update(&mut cx, |view, cx| view.selected_display_ranges(cx)),
7580 &[
7581 DisplayPoint::new(0, 16)..DisplayPoint::new(0, 28),
7582 DisplayPoint::new(4, 1)..DisplayPoint::new(2, 0),
7583 ]
7584 );
7585
7586 view.update(&mut cx, |view, cx| {
7587 view.select_smaller_syntax_node(&SelectSmallerSyntaxNode, cx);
7588 });
7589 assert_eq!(
7590 view.update(&mut cx, |view, cx| view.selected_display_ranges(cx)),
7591 &[
7592 DisplayPoint::new(0, 23)..DisplayPoint::new(0, 27),
7593 DisplayPoint::new(2, 35)..DisplayPoint::new(2, 7),
7594 DisplayPoint::new(3, 15)..DisplayPoint::new(3, 21),
7595 ]
7596 );
7597
7598 view.update(&mut cx, |view, cx| {
7599 view.select_smaller_syntax_node(&SelectSmallerSyntaxNode, cx);
7600 });
7601 assert_eq!(
7602 view.update(&mut cx, |view, cx| view.selected_display_ranges(cx)),
7603 &[
7604 DisplayPoint::new(0, 25)..DisplayPoint::new(0, 25),
7605 DisplayPoint::new(2, 24)..DisplayPoint::new(2, 12),
7606 DisplayPoint::new(3, 18)..DisplayPoint::new(3, 18),
7607 ]
7608 );
7609
7610 // Trying to shrink the selected syntax node one more time has no effect.
7611 view.update(&mut cx, |view, cx| {
7612 view.select_smaller_syntax_node(&SelectSmallerSyntaxNode, cx);
7613 });
7614 assert_eq!(
7615 view.update(&mut cx, |view, cx| view.selected_display_ranges(cx)),
7616 &[
7617 DisplayPoint::new(0, 25)..DisplayPoint::new(0, 25),
7618 DisplayPoint::new(2, 24)..DisplayPoint::new(2, 12),
7619 DisplayPoint::new(3, 18)..DisplayPoint::new(3, 18),
7620 ]
7621 );
7622
7623 // Ensure that we keep expanding the selection if the larger selection starts or ends within
7624 // a fold.
7625 view.update(&mut cx, |view, cx| {
7626 view.fold_ranges(
7627 vec![
7628 Point::new(0, 21)..Point::new(0, 24),
7629 Point::new(3, 20)..Point::new(3, 22),
7630 ],
7631 cx,
7632 );
7633 view.select_larger_syntax_node(&SelectLargerSyntaxNode, cx);
7634 });
7635 assert_eq!(
7636 view.update(&mut cx, |view, cx| view.selected_display_ranges(cx)),
7637 &[
7638 DisplayPoint::new(0, 16)..DisplayPoint::new(0, 28),
7639 DisplayPoint::new(2, 35)..DisplayPoint::new(2, 7),
7640 DisplayPoint::new(3, 4)..DisplayPoint::new(3, 23),
7641 ]
7642 );
7643 }
7644
7645 #[gpui::test]
7646 async fn test_autoindent_selections(mut cx: gpui::TestAppContext) {
7647 let settings = cx.read(EditorSettings::test);
7648 let language = Arc::new(
7649 Language::new(
7650 LanguageConfig {
7651 brackets: vec![
7652 BracketPair {
7653 start: "{".to_string(),
7654 end: "}".to_string(),
7655 close: false,
7656 newline: true,
7657 },
7658 BracketPair {
7659 start: "(".to_string(),
7660 end: ")".to_string(),
7661 close: false,
7662 newline: true,
7663 },
7664 ],
7665 ..Default::default()
7666 },
7667 Some(tree_sitter_rust::language()),
7668 )
7669 .with_indents_query(
7670 r#"
7671 (_ "(" ")" @end) @indent
7672 (_ "{" "}" @end) @indent
7673 "#,
7674 )
7675 .unwrap(),
7676 );
7677
7678 let text = "fn a() {}";
7679
7680 let buffer = cx.add_model(|cx| Buffer::new(0, text, cx).with_language(language, cx));
7681 let buffer = cx.add_model(|cx| MultiBuffer::singleton(buffer, cx));
7682 let (_, editor) = cx.add_window(|cx| build_editor(buffer, settings, cx));
7683 editor
7684 .condition(&cx, |editor, cx| !editor.buffer.read(cx).is_parsing(cx))
7685 .await;
7686
7687 editor.update(&mut cx, |editor, cx| {
7688 editor.select_ranges([5..5, 8..8, 9..9], None, cx);
7689 editor.newline(&Newline, cx);
7690 assert_eq!(editor.text(cx), "fn a(\n \n) {\n \n}\n");
7691 assert_eq!(
7692 editor.selected_ranges(cx),
7693 &[
7694 Point::new(1, 4)..Point::new(1, 4),
7695 Point::new(3, 4)..Point::new(3, 4),
7696 Point::new(5, 0)..Point::new(5, 0)
7697 ]
7698 );
7699 });
7700 }
7701
7702 #[gpui::test]
7703 async fn test_autoclose_pairs(mut cx: gpui::TestAppContext) {
7704 let settings = cx.read(EditorSettings::test);
7705 let language = Arc::new(Language::new(
7706 LanguageConfig {
7707 brackets: vec![
7708 BracketPair {
7709 start: "{".to_string(),
7710 end: "}".to_string(),
7711 close: true,
7712 newline: true,
7713 },
7714 BracketPair {
7715 start: "/*".to_string(),
7716 end: " */".to_string(),
7717 close: true,
7718 newline: true,
7719 },
7720 ],
7721 ..Default::default()
7722 },
7723 Some(tree_sitter_rust::language()),
7724 ));
7725
7726 let text = r#"
7727 a
7728
7729 /
7730
7731 "#
7732 .unindent();
7733
7734 let buffer = cx.add_model(|cx| Buffer::new(0, text, cx).with_language(language, cx));
7735 let buffer = cx.add_model(|cx| MultiBuffer::singleton(buffer, cx));
7736 let (_, view) = cx.add_window(|cx| build_editor(buffer, settings, cx));
7737 view.condition(&cx, |view, cx| !view.buffer.read(cx).is_parsing(cx))
7738 .await;
7739
7740 view.update(&mut cx, |view, cx| {
7741 view.select_display_ranges(
7742 &[
7743 DisplayPoint::new(0, 0)..DisplayPoint::new(0, 1),
7744 DisplayPoint::new(1, 0)..DisplayPoint::new(1, 0),
7745 ],
7746 cx,
7747 );
7748 view.handle_input(&Input("{".to_string()), cx);
7749 view.handle_input(&Input("{".to_string()), cx);
7750 view.handle_input(&Input("{".to_string()), cx);
7751 assert_eq!(
7752 view.text(cx),
7753 "
7754 {{{}}}
7755 {{{}}}
7756 /
7757
7758 "
7759 .unindent()
7760 );
7761
7762 view.move_right(&MoveRight, cx);
7763 view.handle_input(&Input("}".to_string()), cx);
7764 view.handle_input(&Input("}".to_string()), cx);
7765 view.handle_input(&Input("}".to_string()), cx);
7766 assert_eq!(
7767 view.text(cx),
7768 "
7769 {{{}}}}
7770 {{{}}}}
7771 /
7772
7773 "
7774 .unindent()
7775 );
7776
7777 view.undo(&Undo, cx);
7778 view.handle_input(&Input("/".to_string()), cx);
7779 view.handle_input(&Input("*".to_string()), cx);
7780 assert_eq!(
7781 view.text(cx),
7782 "
7783 /* */
7784 /* */
7785 /
7786
7787 "
7788 .unindent()
7789 );
7790
7791 view.undo(&Undo, cx);
7792 view.select_display_ranges(
7793 &[
7794 DisplayPoint::new(2, 1)..DisplayPoint::new(2, 1),
7795 DisplayPoint::new(3, 0)..DisplayPoint::new(3, 0),
7796 ],
7797 cx,
7798 );
7799 view.handle_input(&Input("*".to_string()), cx);
7800 assert_eq!(
7801 view.text(cx),
7802 "
7803 a
7804
7805 /*
7806 *
7807 "
7808 .unindent()
7809 );
7810 });
7811 }
7812
7813 #[gpui::test]
7814 async fn test_snippets(mut cx: gpui::TestAppContext) {
7815 let settings = cx.read(EditorSettings::test);
7816
7817 let text = "
7818 a. b
7819 a. b
7820 a. b
7821 "
7822 .unindent();
7823 let buffer = cx.update(|cx| MultiBuffer::build_simple(&text, cx));
7824 let (_, editor) = cx.add_window(|cx| build_editor(buffer, settings, cx));
7825
7826 editor.update(&mut cx, |editor, cx| {
7827 let buffer = &editor.snapshot(cx).buffer_snapshot;
7828 let snippet = Snippet::parse("f(${1:one}, ${2:two}, ${1:three})$0").unwrap();
7829 let insertion_ranges = [
7830 Point::new(0, 2).to_offset(buffer)..Point::new(0, 2).to_offset(buffer),
7831 Point::new(1, 2).to_offset(buffer)..Point::new(1, 2).to_offset(buffer),
7832 Point::new(2, 2).to_offset(buffer)..Point::new(2, 2).to_offset(buffer),
7833 ];
7834
7835 editor
7836 .insert_snippet(&insertion_ranges, snippet, cx)
7837 .unwrap();
7838 assert_eq!(
7839 editor.text(cx),
7840 "
7841 a.f(one, two, three) b
7842 a.f(one, two, three) b
7843 a.f(one, two, three) b
7844 "
7845 .unindent()
7846 );
7847 assert_eq!(
7848 editor.selected_ranges::<Point>(cx),
7849 &[
7850 Point::new(0, 4)..Point::new(0, 7),
7851 Point::new(0, 14)..Point::new(0, 19),
7852 Point::new(1, 4)..Point::new(1, 7),
7853 Point::new(1, 14)..Point::new(1, 19),
7854 Point::new(2, 4)..Point::new(2, 7),
7855 Point::new(2, 14)..Point::new(2, 19),
7856 ]
7857 );
7858
7859 // Can't move earlier than the first tab stop
7860 editor.move_to_prev_snippet_tabstop(cx);
7861 assert_eq!(
7862 editor.selected_ranges::<Point>(cx),
7863 &[
7864 Point::new(0, 4)..Point::new(0, 7),
7865 Point::new(0, 14)..Point::new(0, 19),
7866 Point::new(1, 4)..Point::new(1, 7),
7867 Point::new(1, 14)..Point::new(1, 19),
7868 Point::new(2, 4)..Point::new(2, 7),
7869 Point::new(2, 14)..Point::new(2, 19),
7870 ]
7871 );
7872
7873 assert!(editor.move_to_next_snippet_tabstop(cx));
7874 assert_eq!(
7875 editor.selected_ranges::<Point>(cx),
7876 &[
7877 Point::new(0, 9)..Point::new(0, 12),
7878 Point::new(1, 9)..Point::new(1, 12),
7879 Point::new(2, 9)..Point::new(2, 12)
7880 ]
7881 );
7882
7883 editor.move_to_prev_snippet_tabstop(cx);
7884 assert_eq!(
7885 editor.selected_ranges::<Point>(cx),
7886 &[
7887 Point::new(0, 4)..Point::new(0, 7),
7888 Point::new(0, 14)..Point::new(0, 19),
7889 Point::new(1, 4)..Point::new(1, 7),
7890 Point::new(1, 14)..Point::new(1, 19),
7891 Point::new(2, 4)..Point::new(2, 7),
7892 Point::new(2, 14)..Point::new(2, 19),
7893 ]
7894 );
7895
7896 assert!(editor.move_to_next_snippet_tabstop(cx));
7897 assert!(editor.move_to_next_snippet_tabstop(cx));
7898 assert_eq!(
7899 editor.selected_ranges::<Point>(cx),
7900 &[
7901 Point::new(0, 20)..Point::new(0, 20),
7902 Point::new(1, 20)..Point::new(1, 20),
7903 Point::new(2, 20)..Point::new(2, 20)
7904 ]
7905 );
7906
7907 // As soon as the last tab stop is reached, snippet state is gone
7908 editor.move_to_prev_snippet_tabstop(cx);
7909 assert_eq!(
7910 editor.selected_ranges::<Point>(cx),
7911 &[
7912 Point::new(0, 20)..Point::new(0, 20),
7913 Point::new(1, 20)..Point::new(1, 20),
7914 Point::new(2, 20)..Point::new(2, 20)
7915 ]
7916 );
7917 });
7918 }
7919
7920 #[gpui::test]
7921 async fn test_completion(mut cx: gpui::TestAppContext) {
7922 let settings = cx.read(EditorSettings::test);
7923 let (language_server, mut fake) = lsp::LanguageServer::fake_with_capabilities(
7924 lsp::ServerCapabilities {
7925 completion_provider: Some(lsp::CompletionOptions {
7926 trigger_characters: Some(vec![".".to_string(), ":".to_string()]),
7927 ..Default::default()
7928 }),
7929 ..Default::default()
7930 },
7931 cx.background(),
7932 );
7933
7934 let text = "
7935 one
7936 two
7937 three
7938 "
7939 .unindent();
7940
7941 let fs = FakeFs::new(cx.background().clone());
7942 fs.insert_file("/file", text).await;
7943
7944 let project = Project::test(fs, &mut cx);
7945
7946 let (worktree, relative_path) = project
7947 .update(&mut cx, |project, cx| {
7948 project.find_or_create_local_worktree("/file", false, cx)
7949 })
7950 .await
7951 .unwrap();
7952 let project_path = ProjectPath {
7953 worktree_id: worktree.read_with(&cx, |worktree, _| worktree.id()),
7954 path: relative_path.into(),
7955 };
7956 let buffer = project
7957 .update(&mut cx, |project, cx| project.open_buffer(project_path, cx))
7958 .await
7959 .unwrap();
7960 buffer.update(&mut cx, |buffer, cx| {
7961 buffer.set_language_server(Some(language_server), cx);
7962 });
7963
7964 let buffer = cx.add_model(|cx| MultiBuffer::singleton(buffer, cx));
7965 buffer.next_notification(&cx).await;
7966
7967 let (_, editor) = cx.add_window(|cx| build_editor(buffer, settings, cx));
7968
7969 editor.update(&mut cx, |editor, cx| {
7970 editor.project = Some(project);
7971 editor.select_ranges([Point::new(0, 3)..Point::new(0, 3)], None, cx);
7972 editor.handle_input(&Input(".".to_string()), cx);
7973 });
7974
7975 handle_completion_request(
7976 &mut fake,
7977 "/file",
7978 Point::new(0, 4),
7979 vec![
7980 (Point::new(0, 4)..Point::new(0, 4), "first_completion"),
7981 (Point::new(0, 4)..Point::new(0, 4), "second_completion"),
7982 ],
7983 )
7984 .await;
7985 editor
7986 .condition(&cx, |editor, _| editor.context_menu_visible())
7987 .await;
7988
7989 let apply_additional_edits = editor.update(&mut cx, |editor, cx| {
7990 editor.move_down(&MoveDown, cx);
7991 let apply_additional_edits = editor
7992 .confirm_completion(&ConfirmCompletion(None), cx)
7993 .unwrap();
7994 assert_eq!(
7995 editor.text(cx),
7996 "
7997 one.second_completion
7998 two
7999 three
8000 "
8001 .unindent()
8002 );
8003 apply_additional_edits
8004 });
8005
8006 handle_resolve_completion_request(
8007 &mut fake,
8008 Some((Point::new(2, 5)..Point::new(2, 5), "\nadditional edit")),
8009 )
8010 .await;
8011 apply_additional_edits.await.unwrap();
8012 assert_eq!(
8013 editor.read_with(&cx, |editor, cx| editor.text(cx)),
8014 "
8015 one.second_completion
8016 two
8017 three
8018 additional edit
8019 "
8020 .unindent()
8021 );
8022
8023 editor.update(&mut cx, |editor, cx| {
8024 editor.select_ranges(
8025 [
8026 Point::new(1, 3)..Point::new(1, 3),
8027 Point::new(2, 5)..Point::new(2, 5),
8028 ],
8029 None,
8030 cx,
8031 );
8032
8033 editor.handle_input(&Input(" ".to_string()), cx);
8034 assert!(editor.context_menu.is_none());
8035 editor.handle_input(&Input("s".to_string()), cx);
8036 assert!(editor.context_menu.is_none());
8037 });
8038
8039 handle_completion_request(
8040 &mut fake,
8041 "/file",
8042 Point::new(2, 7),
8043 vec![
8044 (Point::new(2, 6)..Point::new(2, 7), "fourth_completion"),
8045 (Point::new(2, 6)..Point::new(2, 7), "fifth_completion"),
8046 (Point::new(2, 6)..Point::new(2, 7), "sixth_completion"),
8047 ],
8048 )
8049 .await;
8050 editor
8051 .condition(&cx, |editor, _| editor.context_menu_visible())
8052 .await;
8053
8054 editor.update(&mut cx, |editor, cx| {
8055 editor.handle_input(&Input("i".to_string()), cx);
8056 });
8057
8058 handle_completion_request(
8059 &mut fake,
8060 "/file",
8061 Point::new(2, 8),
8062 vec![
8063 (Point::new(2, 6)..Point::new(2, 8), "fourth_completion"),
8064 (Point::new(2, 6)..Point::new(2, 8), "fifth_completion"),
8065 (Point::new(2, 6)..Point::new(2, 8), "sixth_completion"),
8066 ],
8067 )
8068 .await;
8069 editor
8070 .condition(&cx, |editor, _| editor.context_menu_visible())
8071 .await;
8072
8073 let apply_additional_edits = editor.update(&mut cx, |editor, cx| {
8074 let apply_additional_edits = editor
8075 .confirm_completion(&ConfirmCompletion(None), cx)
8076 .unwrap();
8077 assert_eq!(
8078 editor.text(cx),
8079 "
8080 one.second_completion
8081 two sixth_completion
8082 three sixth_completion
8083 additional edit
8084 "
8085 .unindent()
8086 );
8087 apply_additional_edits
8088 });
8089 handle_resolve_completion_request(&mut fake, None).await;
8090 apply_additional_edits.await.unwrap();
8091
8092 async fn handle_completion_request(
8093 fake: &mut FakeLanguageServer,
8094 path: &'static str,
8095 position: Point,
8096 completions: Vec<(Range<Point>, &'static str)>,
8097 ) {
8098 fake.handle_request::<lsp::request::Completion, _>(move |params| {
8099 assert_eq!(
8100 params.text_document_position.text_document.uri,
8101 lsp::Url::from_file_path(path).unwrap()
8102 );
8103 assert_eq!(
8104 params.text_document_position.position,
8105 lsp::Position::new(position.row, position.column)
8106 );
8107 Some(lsp::CompletionResponse::Array(
8108 completions
8109 .iter()
8110 .map(|(range, new_text)| lsp::CompletionItem {
8111 label: new_text.to_string(),
8112 text_edit: Some(lsp::CompletionTextEdit::Edit(lsp::TextEdit {
8113 range: lsp::Range::new(
8114 lsp::Position::new(range.start.row, range.start.column),
8115 lsp::Position::new(range.start.row, range.start.column),
8116 ),
8117 new_text: new_text.to_string(),
8118 })),
8119 ..Default::default()
8120 })
8121 .collect(),
8122 ))
8123 })
8124 .next()
8125 .await;
8126 }
8127
8128 async fn handle_resolve_completion_request(
8129 fake: &mut FakeLanguageServer,
8130 edit: Option<(Range<Point>, &'static str)>,
8131 ) {
8132 fake.handle_request::<lsp::request::ResolveCompletionItem, _>(move |_| {
8133 lsp::CompletionItem {
8134 additional_text_edits: edit.clone().map(|(range, new_text)| {
8135 vec![lsp::TextEdit::new(
8136 lsp::Range::new(
8137 lsp::Position::new(range.start.row, range.start.column),
8138 lsp::Position::new(range.end.row, range.end.column),
8139 ),
8140 new_text.to_string(),
8141 )]
8142 }),
8143 ..Default::default()
8144 }
8145 })
8146 .next()
8147 .await;
8148 }
8149 }
8150
8151 #[gpui::test]
8152 async fn test_toggle_comment(mut cx: gpui::TestAppContext) {
8153 let settings = cx.read(EditorSettings::test);
8154 let language = Arc::new(Language::new(
8155 LanguageConfig {
8156 line_comment: Some("// ".to_string()),
8157 ..Default::default()
8158 },
8159 Some(tree_sitter_rust::language()),
8160 ));
8161
8162 let text = "
8163 fn a() {
8164 //b();
8165 // c();
8166 // d();
8167 }
8168 "
8169 .unindent();
8170
8171 let buffer = cx.add_model(|cx| Buffer::new(0, text, cx).with_language(language, cx));
8172 let buffer = cx.add_model(|cx| MultiBuffer::singleton(buffer, cx));
8173 let (_, view) = cx.add_window(|cx| build_editor(buffer, settings, cx));
8174
8175 view.update(&mut cx, |editor, cx| {
8176 // If multiple selections intersect a line, the line is only
8177 // toggled once.
8178 editor.select_display_ranges(
8179 &[
8180 DisplayPoint::new(1, 3)..DisplayPoint::new(2, 3),
8181 DisplayPoint::new(3, 5)..DisplayPoint::new(3, 6),
8182 ],
8183 cx,
8184 );
8185 editor.toggle_comments(&ToggleComments, cx);
8186 assert_eq!(
8187 editor.text(cx),
8188 "
8189 fn a() {
8190 b();
8191 c();
8192 d();
8193 }
8194 "
8195 .unindent()
8196 );
8197
8198 // The comment prefix is inserted at the same column for every line
8199 // in a selection.
8200 editor.select_display_ranges(&[DisplayPoint::new(1, 3)..DisplayPoint::new(3, 6)], cx);
8201 editor.toggle_comments(&ToggleComments, cx);
8202 assert_eq!(
8203 editor.text(cx),
8204 "
8205 fn a() {
8206 // b();
8207 // c();
8208 // d();
8209 }
8210 "
8211 .unindent()
8212 );
8213
8214 // If a selection ends at the beginning of a line, that line is not toggled.
8215 editor.select_display_ranges(&[DisplayPoint::new(2, 0)..DisplayPoint::new(3, 0)], cx);
8216 editor.toggle_comments(&ToggleComments, cx);
8217 assert_eq!(
8218 editor.text(cx),
8219 "
8220 fn a() {
8221 // b();
8222 c();
8223 // d();
8224 }
8225 "
8226 .unindent()
8227 );
8228 });
8229 }
8230
8231 #[gpui::test]
8232 fn test_editing_disjoint_excerpts(cx: &mut gpui::MutableAppContext) {
8233 let settings = EditorSettings::test(cx);
8234 let buffer = cx.add_model(|cx| Buffer::new(0, sample_text(3, 4, 'a'), cx));
8235 let multibuffer = cx.add_model(|cx| {
8236 let mut multibuffer = MultiBuffer::new(0);
8237 multibuffer.push_excerpts(
8238 buffer.clone(),
8239 [
8240 Point::new(0, 0)..Point::new(0, 4),
8241 Point::new(1, 0)..Point::new(1, 4),
8242 ],
8243 cx,
8244 );
8245 multibuffer
8246 });
8247
8248 assert_eq!(multibuffer.read(cx).read(cx).text(), "aaaa\nbbbb");
8249
8250 let (_, view) = cx.add_window(Default::default(), |cx| {
8251 build_editor(multibuffer, settings, cx)
8252 });
8253 view.update(cx, |view, cx| {
8254 assert_eq!(view.text(cx), "aaaa\nbbbb");
8255 view.select_ranges(
8256 [
8257 Point::new(0, 0)..Point::new(0, 0),
8258 Point::new(1, 0)..Point::new(1, 0),
8259 ],
8260 None,
8261 cx,
8262 );
8263
8264 view.handle_input(&Input("X".to_string()), cx);
8265 assert_eq!(view.text(cx), "Xaaaa\nXbbbb");
8266 assert_eq!(
8267 view.selected_ranges(cx),
8268 [
8269 Point::new(0, 1)..Point::new(0, 1),
8270 Point::new(1, 1)..Point::new(1, 1),
8271 ]
8272 )
8273 });
8274 }
8275
8276 #[gpui::test]
8277 fn test_editing_overlapping_excerpts(cx: &mut gpui::MutableAppContext) {
8278 let settings = EditorSettings::test(cx);
8279 let buffer = cx.add_model(|cx| Buffer::new(0, sample_text(3, 4, 'a'), cx));
8280 let multibuffer = cx.add_model(|cx| {
8281 let mut multibuffer = MultiBuffer::new(0);
8282 multibuffer.push_excerpts(
8283 buffer,
8284 [
8285 Point::new(0, 0)..Point::new(1, 4),
8286 Point::new(1, 0)..Point::new(2, 4),
8287 ],
8288 cx,
8289 );
8290 multibuffer
8291 });
8292
8293 assert_eq!(
8294 multibuffer.read(cx).read(cx).text(),
8295 "aaaa\nbbbb\nbbbb\ncccc"
8296 );
8297
8298 let (_, view) = cx.add_window(Default::default(), |cx| {
8299 build_editor(multibuffer, settings, cx)
8300 });
8301 view.update(cx, |view, cx| {
8302 view.select_ranges(
8303 [
8304 Point::new(1, 1)..Point::new(1, 1),
8305 Point::new(2, 3)..Point::new(2, 3),
8306 ],
8307 None,
8308 cx,
8309 );
8310
8311 view.handle_input(&Input("X".to_string()), cx);
8312 assert_eq!(view.text(cx), "aaaa\nbXbbXb\nbXbbXb\ncccc");
8313 assert_eq!(
8314 view.selected_ranges(cx),
8315 [
8316 Point::new(1, 2)..Point::new(1, 2),
8317 Point::new(2, 5)..Point::new(2, 5),
8318 ]
8319 );
8320
8321 view.newline(&Newline, cx);
8322 assert_eq!(view.text(cx), "aaaa\nbX\nbbX\nb\nbX\nbbX\nb\ncccc");
8323 assert_eq!(
8324 view.selected_ranges(cx),
8325 [
8326 Point::new(2, 0)..Point::new(2, 0),
8327 Point::new(6, 0)..Point::new(6, 0),
8328 ]
8329 );
8330 });
8331 }
8332
8333 #[gpui::test]
8334 fn test_refresh_selections(cx: &mut gpui::MutableAppContext) {
8335 let settings = EditorSettings::test(cx);
8336 let buffer = cx.add_model(|cx| Buffer::new(0, sample_text(3, 4, 'a'), cx));
8337 let mut excerpt1_id = None;
8338 let multibuffer = cx.add_model(|cx| {
8339 let mut multibuffer = MultiBuffer::new(0);
8340 excerpt1_id = multibuffer
8341 .push_excerpts(
8342 buffer.clone(),
8343 [
8344 Point::new(0, 0)..Point::new(1, 4),
8345 Point::new(1, 0)..Point::new(2, 4),
8346 ],
8347 cx,
8348 )
8349 .into_iter()
8350 .next();
8351 multibuffer
8352 });
8353 assert_eq!(
8354 multibuffer.read(cx).read(cx).text(),
8355 "aaaa\nbbbb\nbbbb\ncccc"
8356 );
8357 let (_, editor) = cx.add_window(Default::default(), |cx| {
8358 let mut editor = build_editor(multibuffer.clone(), settings, cx);
8359 editor.select_ranges(
8360 [
8361 Point::new(1, 3)..Point::new(1, 3),
8362 Point::new(2, 1)..Point::new(2, 1),
8363 ],
8364 None,
8365 cx,
8366 );
8367 editor
8368 });
8369
8370 // Refreshing selections is a no-op when excerpts haven't changed.
8371 editor.update(cx, |editor, cx| {
8372 editor.refresh_selections(cx);
8373 assert_eq!(
8374 editor.selected_ranges(cx),
8375 [
8376 Point::new(1, 3)..Point::new(1, 3),
8377 Point::new(2, 1)..Point::new(2, 1),
8378 ]
8379 );
8380 });
8381
8382 multibuffer.update(cx, |multibuffer, cx| {
8383 multibuffer.remove_excerpts([&excerpt1_id.unwrap()], cx);
8384 });
8385 editor.update(cx, |editor, cx| {
8386 // Removing an excerpt causes the first selection to become degenerate.
8387 assert_eq!(
8388 editor.selected_ranges(cx),
8389 [
8390 Point::new(0, 0)..Point::new(0, 0),
8391 Point::new(0, 1)..Point::new(0, 1)
8392 ]
8393 );
8394
8395 // Refreshing selections will relocate the first selection to the original buffer
8396 // location.
8397 editor.refresh_selections(cx);
8398 assert_eq!(
8399 editor.selected_ranges(cx),
8400 [
8401 Point::new(0, 1)..Point::new(0, 1),
8402 Point::new(0, 3)..Point::new(0, 3)
8403 ]
8404 );
8405 });
8406 }
8407
8408 #[gpui::test]
8409 async fn test_extra_newline_insertion(mut cx: gpui::TestAppContext) {
8410 let settings = cx.read(EditorSettings::test);
8411 let language = Arc::new(Language::new(
8412 LanguageConfig {
8413 brackets: vec![
8414 BracketPair {
8415 start: "{".to_string(),
8416 end: "}".to_string(),
8417 close: true,
8418 newline: true,
8419 },
8420 BracketPair {
8421 start: "/* ".to_string(),
8422 end: " */".to_string(),
8423 close: true,
8424 newline: true,
8425 },
8426 ],
8427 ..Default::default()
8428 },
8429 Some(tree_sitter_rust::language()),
8430 ));
8431
8432 let text = concat!(
8433 "{ }\n", // Suppress rustfmt
8434 " x\n", //
8435 " /* */\n", //
8436 "x\n", //
8437 "{{} }\n", //
8438 );
8439
8440 let buffer = cx.add_model(|cx| Buffer::new(0, text, cx).with_language(language, cx));
8441 let buffer = cx.add_model(|cx| MultiBuffer::singleton(buffer, cx));
8442 let (_, view) = cx.add_window(|cx| build_editor(buffer, settings, cx));
8443 view.condition(&cx, |view, cx| !view.buffer.read(cx).is_parsing(cx))
8444 .await;
8445
8446 view.update(&mut cx, |view, cx| {
8447 view.select_display_ranges(
8448 &[
8449 DisplayPoint::new(0, 2)..DisplayPoint::new(0, 3),
8450 DisplayPoint::new(2, 5)..DisplayPoint::new(2, 5),
8451 DisplayPoint::new(4, 4)..DisplayPoint::new(4, 4),
8452 ],
8453 cx,
8454 );
8455 view.newline(&Newline, cx);
8456
8457 assert_eq!(
8458 view.buffer().read(cx).read(cx).text(),
8459 concat!(
8460 "{ \n", // Suppress rustfmt
8461 "\n", //
8462 "}\n", //
8463 " x\n", //
8464 " /* \n", //
8465 " \n", //
8466 " */\n", //
8467 "x\n", //
8468 "{{} \n", //
8469 "}\n", //
8470 )
8471 );
8472 });
8473 }
8474
8475 #[gpui::test]
8476 fn test_highlighted_ranges(cx: &mut gpui::MutableAppContext) {
8477 let buffer = MultiBuffer::build_simple(&sample_text(16, 8, 'a'), cx);
8478 let settings = EditorSettings::test(&cx);
8479 let (_, editor) = cx.add_window(Default::default(), |cx| {
8480 build_editor(buffer.clone(), settings, cx)
8481 });
8482
8483 editor.update(cx, |editor, cx| {
8484 struct Type1;
8485 struct Type2;
8486
8487 let buffer = buffer.read(cx).snapshot(cx);
8488
8489 let anchor_range = |range: Range<Point>| {
8490 buffer.anchor_after(range.start)..buffer.anchor_after(range.end)
8491 };
8492
8493 editor.highlight_ranges::<Type1>(
8494 vec![
8495 anchor_range(Point::new(2, 1)..Point::new(2, 3)),
8496 anchor_range(Point::new(4, 2)..Point::new(4, 4)),
8497 anchor_range(Point::new(6, 3)..Point::new(6, 5)),
8498 anchor_range(Point::new(8, 4)..Point::new(8, 6)),
8499 ],
8500 Color::red(),
8501 cx,
8502 );
8503 editor.highlight_ranges::<Type2>(
8504 vec![
8505 anchor_range(Point::new(3, 2)..Point::new(3, 5)),
8506 anchor_range(Point::new(5, 3)..Point::new(5, 6)),
8507 anchor_range(Point::new(7, 4)..Point::new(7, 7)),
8508 anchor_range(Point::new(9, 5)..Point::new(9, 8)),
8509 ],
8510 Color::green(),
8511 cx,
8512 );
8513
8514 let snapshot = editor.snapshot(cx);
8515 let mut highlighted_ranges = editor.highlighted_ranges_in_range(
8516 anchor_range(Point::new(3, 4)..Point::new(7, 4)),
8517 &snapshot,
8518 );
8519 // Enforce a consistent ordering based on color without relying on the ordering of the
8520 // highlight's `TypeId` which is non-deterministic.
8521 highlighted_ranges.sort_unstable_by_key(|(_, color)| *color);
8522 assert_eq!(
8523 highlighted_ranges,
8524 &[
8525 (
8526 DisplayPoint::new(3, 2)..DisplayPoint::new(3, 5),
8527 Color::green(),
8528 ),
8529 (
8530 DisplayPoint::new(5, 3)..DisplayPoint::new(5, 6),
8531 Color::green(),
8532 ),
8533 (
8534 DisplayPoint::new(4, 2)..DisplayPoint::new(4, 4),
8535 Color::red(),
8536 ),
8537 (
8538 DisplayPoint::new(6, 3)..DisplayPoint::new(6, 5),
8539 Color::red(),
8540 ),
8541 ]
8542 );
8543 assert_eq!(
8544 editor.highlighted_ranges_in_range(
8545 anchor_range(Point::new(5, 6)..Point::new(6, 4)),
8546 &snapshot,
8547 ),
8548 &[(
8549 DisplayPoint::new(6, 3)..DisplayPoint::new(6, 5),
8550 Color::red(),
8551 )]
8552 );
8553 });
8554 }
8555
8556 #[test]
8557 fn test_combine_syntax_and_fuzzy_match_highlights() {
8558 let string = "abcdefghijklmnop";
8559 let default = HighlightStyle::default();
8560 let syntax_ranges = [
8561 (
8562 0..3,
8563 HighlightStyle {
8564 color: Color::red(),
8565 ..default
8566 },
8567 ),
8568 (
8569 4..8,
8570 HighlightStyle {
8571 color: Color::green(),
8572 ..default
8573 },
8574 ),
8575 ];
8576 let match_indices = [4, 6, 7, 8];
8577 assert_eq!(
8578 combine_syntax_and_fuzzy_match_highlights(
8579 &string,
8580 default,
8581 syntax_ranges.into_iter(),
8582 &match_indices,
8583 ),
8584 &[
8585 (
8586 0..3,
8587 HighlightStyle {
8588 color: Color::red(),
8589 ..default
8590 },
8591 ),
8592 (
8593 4..5,
8594 HighlightStyle {
8595 color: Color::green(),
8596 font_properties: *fonts::Properties::default().weight(fonts::Weight::BOLD),
8597 ..default
8598 },
8599 ),
8600 (
8601 5..6,
8602 HighlightStyle {
8603 color: Color::green(),
8604 ..default
8605 },
8606 ),
8607 (
8608 6..8,
8609 HighlightStyle {
8610 color: Color::green(),
8611 font_properties: *fonts::Properties::default().weight(fonts::Weight::BOLD),
8612 ..default
8613 },
8614 ),
8615 (
8616 8..9,
8617 HighlightStyle {
8618 font_properties: *fonts::Properties::default().weight(fonts::Weight::BOLD),
8619 ..default
8620 },
8621 ),
8622 ]
8623 );
8624 }
8625
8626 fn empty_range(row: usize, column: usize) -> Range<DisplayPoint> {
8627 let point = DisplayPoint::new(row as u32, column as u32);
8628 point..point
8629 }
8630
8631 fn build_editor(
8632 buffer: ModelHandle<MultiBuffer>,
8633 settings: EditorSettings,
8634 cx: &mut ViewContext<Editor>,
8635 ) -> Editor {
8636 Editor::for_buffer(buffer, Arc::new(move |_| settings.clone()), None, cx)
8637 }
8638}
8639
8640trait RangeExt<T> {
8641 fn sorted(&self) -> Range<T>;
8642 fn to_inclusive(&self) -> RangeInclusive<T>;
8643}
8644
8645impl<T: Ord + Clone> RangeExt<T> for Range<T> {
8646 fn sorted(&self) -> Self {
8647 cmp::min(&self.start, &self.end).clone()..cmp::max(&self.start, &self.end).clone()
8648 }
8649
8650 fn to_inclusive(&self) -> RangeInclusive<T> {
8651 self.start.clone()..=self.end.clone()
8652 }
8653}