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