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