1use crate::{
2 ActiveDebugLine, Anchor, Autoscroll, BufferSerialization, Capability, Editor, EditorEvent,
3 EditorSettings, ExcerptId, ExcerptRange, FormatTarget, MultiBuffer, MultiBufferSnapshot,
4 NavigationData, ReportEditorEvent, SelectionEffects, ToPoint as _,
5 display_map::HighlightKey,
6 editor_settings::SeedQuerySetting,
7 persistence::{DB, SerializedEditor},
8 scroll::{ScrollAnchor, ScrollOffset},
9};
10use anyhow::{Context as _, Result, anyhow};
11use collections::{HashMap, HashSet};
12use file_icons::FileIcons;
13use fs::MTime;
14use futures::future::try_join_all;
15use git::status::GitSummary;
16use gpui::{
17 AnyElement, App, AsyncWindowContext, Context, Entity, EntityId, EventEmitter, IntoElement,
18 ParentElement, Pixels, SharedString, Styled, Task, WeakEntity, Window, point,
19};
20use language::{
21 Bias, Buffer, BufferRow, CharKind, CharScopeContext, LocalFile, Point, SelectionGoal,
22 proto::serialize_anchor as serialize_text_anchor,
23};
24use lsp::DiagnosticSeverity;
25use multi_buffer::MultiBufferOffset;
26use project::{
27 File, Project, ProjectItem as _, ProjectPath, lsp_store::FormatTrigger,
28 project_settings::ProjectSettings, search::SearchQuery,
29};
30use rpc::proto::{self, update_view};
31use settings::Settings;
32use std::{
33 any::{Any, TypeId},
34 borrow::Cow,
35 cmp::{self, Ordering},
36 iter,
37 ops::Range,
38 path::{Path, PathBuf},
39 sync::Arc,
40};
41use text::{BufferId, BufferSnapshot, Selection};
42use ui::{IconDecorationKind, prelude::*};
43use util::{ResultExt, TryFutureExt, paths::PathExt};
44use workspace::{
45 CollaboratorId, ItemId, ItemNavHistory, ToolbarItemLocation, ViewId, Workspace, WorkspaceId,
46 invalid_item_view::InvalidItemView,
47 item::{FollowableItem, Item, ItemBufferKind, ItemEvent, ProjectItem, SaveOptions},
48 searchable::{
49 Direction, FilteredSearchRange, SearchEvent, SearchToken, SearchableItem,
50 SearchableItemHandle,
51 },
52};
53use workspace::{
54 OpenOptions,
55 item::{Dedup, ItemSettings, SerializableItem, TabContentParams},
56};
57use workspace::{
58 OpenVisible, Pane, WorkspaceSettings,
59 item::{BreadcrumbText, FollowEvent, ProjectItemKind},
60 searchable::SearchOptions,
61};
62use zed_actions::preview::{
63 markdown::OpenPreview as OpenMarkdownPreview, svg::OpenPreview as OpenSvgPreview,
64};
65
66pub const MAX_TAB_TITLE_LEN: usize = 24;
67
68impl FollowableItem for Editor {
69 fn remote_id(&self) -> Option<ViewId> {
70 self.remote_id
71 }
72
73 fn from_state_proto(
74 workspace: Entity<Workspace>,
75 remote_id: ViewId,
76 state: &mut Option<proto::view::Variant>,
77 window: &mut Window,
78 cx: &mut App,
79 ) -> Option<Task<Result<Entity<Self>>>> {
80 let project = workspace.read(cx).project().to_owned();
81 let Some(proto::view::Variant::Editor(_)) = state else {
82 return None;
83 };
84 let Some(proto::view::Variant::Editor(state)) = state.take() else {
85 unreachable!()
86 };
87
88 let buffer_ids = state
89 .excerpts
90 .iter()
91 .map(|excerpt| excerpt.buffer_id)
92 .collect::<HashSet<_>>();
93 let buffers = project.update(cx, |project, cx| {
94 buffer_ids
95 .iter()
96 .map(|id| BufferId::new(*id).map(|id| project.open_buffer_by_id(id, cx)))
97 .collect::<Result<Vec<_>>>()
98 });
99
100 Some(window.spawn(cx, async move |cx| {
101 let mut buffers = futures::future::try_join_all(buffers?)
102 .await
103 .debug_assert_ok("leaders don't share views for unshared buffers")?;
104
105 let editor = cx.update(|window, cx| {
106 let multibuffer = cx.new(|cx| {
107 let mut multibuffer;
108 if state.singleton && buffers.len() == 1 {
109 multibuffer = MultiBuffer::singleton(buffers.pop().unwrap(), cx)
110 } else {
111 multibuffer = MultiBuffer::new(project.read(cx).capability());
112 let mut sorted_excerpts = state.excerpts.clone();
113 sorted_excerpts.sort_by_key(|e| e.id);
114 let sorted_excerpts = sorted_excerpts.into_iter().peekable();
115
116 for excerpt in sorted_excerpts {
117 let Ok(buffer_id) = BufferId::new(excerpt.buffer_id) else {
118 continue;
119 };
120
121 let mut insert_position = ExcerptId::min();
122 for e in &state.excerpts {
123 if e.id == excerpt.id {
124 break;
125 }
126 if e.id < excerpt.id {
127 insert_position = ExcerptId::from_proto(e.id);
128 }
129 }
130
131 let buffer =
132 buffers.iter().find(|b| b.read(cx).remote_id() == buffer_id);
133
134 let Some(excerpt) = deserialize_excerpt_range(excerpt) else {
135 continue;
136 };
137
138 let Some(buffer) = buffer else { continue };
139
140 multibuffer.insert_excerpts_with_ids_after(
141 insert_position,
142 buffer.clone(),
143 [excerpt],
144 cx,
145 );
146 }
147 };
148
149 if let Some(title) = &state.title {
150 multibuffer = multibuffer.with_title(title.clone())
151 }
152
153 multibuffer
154 });
155
156 cx.new(|cx| {
157 let mut editor =
158 Editor::for_multibuffer(multibuffer, Some(project.clone()), window, cx);
159 editor.remote_id = Some(remote_id);
160 editor
161 })
162 })?;
163
164 update_editor_from_message(
165 editor.downgrade(),
166 project,
167 proto::update_view::Editor {
168 selections: state.selections,
169 pending_selection: state.pending_selection,
170 scroll_top_anchor: state.scroll_top_anchor,
171 scroll_x: state.scroll_x,
172 scroll_y: state.scroll_y,
173 ..Default::default()
174 },
175 cx,
176 )
177 .await?;
178
179 Ok(editor)
180 }))
181 }
182
183 fn set_leader_id(
184 &mut self,
185 leader_id: Option<CollaboratorId>,
186 window: &mut Window,
187 cx: &mut Context<Self>,
188 ) {
189 self.leader_id = leader_id;
190 if self.leader_id.is_some() {
191 self.buffer.update(cx, |buffer, cx| {
192 buffer.remove_active_selections(cx);
193 });
194 } else if self.focus_handle.is_focused(window) {
195 self.buffer.update(cx, |buffer, cx| {
196 buffer.set_active_selections(
197 &self.selections.disjoint_anchors_arc(),
198 self.selections.line_mode(),
199 self.cursor_shape,
200 cx,
201 );
202 });
203 }
204 cx.notify();
205 }
206
207 fn to_state_proto(&self, _: &mut Window, cx: &mut App) -> Option<proto::view::Variant> {
208 let is_private = self
209 .buffer
210 .read(cx)
211 .as_singleton()
212 .and_then(|buffer| buffer.read(cx).file())
213 .is_some_and(|file| file.is_private());
214 if is_private {
215 return None;
216 }
217
218 let display_snapshot = self.display_map.update(cx, |map, cx| map.snapshot(cx));
219 let scroll_anchor = self.scroll_manager.native_anchor(&display_snapshot, cx);
220 let buffer = self.buffer.read(cx);
221 let excerpts = buffer
222 .read(cx)
223 .excerpts()
224 .map(|(id, buffer, range)| proto::Excerpt {
225 id: id.to_proto(),
226 buffer_id: buffer.remote_id().into(),
227 context_start: Some(serialize_text_anchor(&range.context.start)),
228 context_end: Some(serialize_text_anchor(&range.context.end)),
229 primary_start: Some(serialize_text_anchor(&range.primary.start)),
230 primary_end: Some(serialize_text_anchor(&range.primary.end)),
231 })
232 .collect();
233 let snapshot = buffer.snapshot(cx);
234
235 Some(proto::view::Variant::Editor(proto::view::Editor {
236 singleton: buffer.is_singleton(),
237 title: buffer.explicit_title().map(ToOwned::to_owned),
238 excerpts,
239 scroll_top_anchor: Some(serialize_anchor(&scroll_anchor.anchor, &snapshot)),
240 scroll_x: scroll_anchor.offset.x,
241 scroll_y: scroll_anchor.offset.y,
242 selections: self
243 .selections
244 .disjoint_anchors_arc()
245 .iter()
246 .map(|s| serialize_selection(s, &snapshot))
247 .collect(),
248 pending_selection: self
249 .selections
250 .pending_anchor()
251 .as_ref()
252 .map(|s| serialize_selection(s, &snapshot)),
253 }))
254 }
255
256 fn to_follow_event(event: &EditorEvent) -> Option<workspace::item::FollowEvent> {
257 match event {
258 EditorEvent::Edited { .. } => Some(FollowEvent::Unfollow),
259 EditorEvent::SelectionsChanged { local }
260 | EditorEvent::ScrollPositionChanged { local, .. } => {
261 if *local {
262 Some(FollowEvent::Unfollow)
263 } else {
264 None
265 }
266 }
267 _ => None,
268 }
269 }
270
271 fn add_event_to_update_proto(
272 &self,
273 event: &EditorEvent,
274 update: &mut Option<proto::update_view::Variant>,
275 _: &mut Window,
276 cx: &mut App,
277 ) -> bool {
278 let update =
279 update.get_or_insert_with(|| proto::update_view::Variant::Editor(Default::default()));
280
281 match update {
282 proto::update_view::Variant::Editor(update) => match event {
283 EditorEvent::ExcerptsAdded {
284 buffer,
285 predecessor,
286 excerpts,
287 } => {
288 let buffer_id = buffer.read(cx).remote_id();
289 let mut excerpts = excerpts.iter();
290 if let Some((id, range)) = excerpts.next() {
291 update.inserted_excerpts.push(proto::ExcerptInsertion {
292 previous_excerpt_id: Some(predecessor.to_proto()),
293 excerpt: serialize_excerpt(buffer_id, id, range),
294 });
295 update.inserted_excerpts.extend(excerpts.map(|(id, range)| {
296 proto::ExcerptInsertion {
297 previous_excerpt_id: None,
298 excerpt: serialize_excerpt(buffer_id, id, range),
299 }
300 }))
301 }
302 true
303 }
304 EditorEvent::ExcerptsRemoved { ids, .. } => {
305 update
306 .deleted_excerpts
307 .extend(ids.iter().copied().map(ExcerptId::to_proto));
308 true
309 }
310 EditorEvent::ScrollPositionChanged { autoscroll, .. } if !autoscroll => {
311 let display_snapshot = self.display_map.update(cx, |map, cx| map.snapshot(cx));
312 let snapshot = self.buffer.read(cx).snapshot(cx);
313 let scroll_anchor = self.scroll_manager.native_anchor(&display_snapshot, cx);
314 update.scroll_top_anchor =
315 Some(serialize_anchor(&scroll_anchor.anchor, &snapshot));
316 update.scroll_x = scroll_anchor.offset.x;
317 update.scroll_y = scroll_anchor.offset.y;
318 true
319 }
320 EditorEvent::SelectionsChanged { .. } => {
321 let snapshot = self.buffer.read(cx).snapshot(cx);
322 update.selections = self
323 .selections
324 .disjoint_anchors_arc()
325 .iter()
326 .map(|s| serialize_selection(s, &snapshot))
327 .collect();
328 update.pending_selection = self
329 .selections
330 .pending_anchor()
331 .as_ref()
332 .map(|s| serialize_selection(s, &snapshot));
333 true
334 }
335 _ => false,
336 },
337 }
338 }
339
340 fn apply_update_proto(
341 &mut self,
342 project: &Entity<Project>,
343 message: update_view::Variant,
344 window: &mut Window,
345 cx: &mut Context<Self>,
346 ) -> Task<Result<()>> {
347 let update_view::Variant::Editor(message) = message;
348 let project = project.clone();
349 cx.spawn_in(window, async move |this, cx| {
350 update_editor_from_message(this, project, message, cx).await
351 })
352 }
353
354 fn is_project_item(&self, _window: &Window, _cx: &App) -> bool {
355 true
356 }
357
358 fn dedup(&self, existing: &Self, _: &Window, cx: &App) -> Option<Dedup> {
359 let self_singleton = self.buffer.read(cx).as_singleton()?;
360 let other_singleton = existing.buffer.read(cx).as_singleton()?;
361 if self_singleton == other_singleton {
362 Some(Dedup::KeepExisting)
363 } else {
364 None
365 }
366 }
367
368 fn update_agent_location(
369 &mut self,
370 location: language::Anchor,
371 window: &mut Window,
372 cx: &mut Context<Self>,
373 ) {
374 let buffer = self.buffer.read(cx);
375 let buffer = buffer.read(cx);
376 let Some(position) = buffer.as_singleton_anchor(location) else {
377 return;
378 };
379 let selection = Selection {
380 id: 0,
381 reversed: false,
382 start: position,
383 end: position,
384 goal: SelectionGoal::None,
385 };
386 drop(buffer);
387 self.set_selections_from_remote(vec![selection], None, window, cx);
388 self.request_autoscroll_remotely(Autoscroll::fit(), cx);
389 }
390}
391
392async fn update_editor_from_message(
393 this: WeakEntity<Editor>,
394 project: Entity<Project>,
395 message: proto::update_view::Editor,
396 cx: &mut AsyncWindowContext,
397) -> Result<()> {
398 // Open all of the buffers of which excerpts were added to the editor.
399 let inserted_excerpt_buffer_ids = message
400 .inserted_excerpts
401 .iter()
402 .filter_map(|insertion| Some(insertion.excerpt.as_ref()?.buffer_id))
403 .collect::<HashSet<_>>();
404 let inserted_excerpt_buffers = project.update(cx, |project, cx| {
405 inserted_excerpt_buffer_ids
406 .into_iter()
407 .map(|id| BufferId::new(id).map(|id| project.open_buffer_by_id(id, cx)))
408 .collect::<Result<Vec<_>>>()
409 })?;
410 let _inserted_excerpt_buffers = try_join_all(inserted_excerpt_buffers).await?;
411
412 // Update the editor's excerpts.
413 this.update(cx, |editor, cx| {
414 editor.buffer.update(cx, |multibuffer, cx| {
415 let mut removed_excerpt_ids = message
416 .deleted_excerpts
417 .into_iter()
418 .map(ExcerptId::from_proto)
419 .collect::<Vec<_>>();
420 removed_excerpt_ids.sort_by({
421 let multibuffer = multibuffer.read(cx);
422 move |a, b| a.cmp(b, &multibuffer)
423 });
424
425 let mut insertions = message.inserted_excerpts.into_iter().peekable();
426 while let Some(insertion) = insertions.next() {
427 let Some(excerpt) = insertion.excerpt else {
428 continue;
429 };
430 let Some(previous_excerpt_id) = insertion.previous_excerpt_id else {
431 continue;
432 };
433 let buffer_id = BufferId::new(excerpt.buffer_id)?;
434 let Some(buffer) = project.read(cx).buffer_for_id(buffer_id, cx) else {
435 continue;
436 };
437
438 let adjacent_excerpts = iter::from_fn(|| {
439 let insertion = insertions.peek()?;
440 if insertion.previous_excerpt_id.is_none()
441 && insertion.excerpt.as_ref()?.buffer_id == u64::from(buffer_id)
442 {
443 insertions.next()?.excerpt
444 } else {
445 None
446 }
447 });
448
449 multibuffer.insert_excerpts_with_ids_after(
450 ExcerptId::from_proto(previous_excerpt_id),
451 buffer,
452 [excerpt]
453 .into_iter()
454 .chain(adjacent_excerpts)
455 .filter_map(deserialize_excerpt_range),
456 cx,
457 );
458 }
459
460 multibuffer.remove_excerpts(removed_excerpt_ids, cx);
461 anyhow::Ok(())
462 })
463 })??;
464
465 // Deserialize the editor state.
466 let selections = message
467 .selections
468 .into_iter()
469 .filter_map(deserialize_selection)
470 .collect::<Vec<_>>();
471 let pending_selection = message.pending_selection.and_then(deserialize_selection);
472 let scroll_top_anchor = message.scroll_top_anchor.and_then(deserialize_anchor);
473
474 // Wait until the buffer has received all of the operations referenced by
475 // the editor's new state.
476 this.update(cx, |editor, cx| {
477 editor.buffer.update(cx, |buffer, cx| {
478 buffer.wait_for_anchors(
479 selections
480 .iter()
481 .chain(pending_selection.as_ref())
482 .flat_map(|selection| [selection.start, selection.end])
483 .chain(scroll_top_anchor),
484 cx,
485 )
486 })
487 })?
488 .await?;
489
490 // Update the editor's state.
491 this.update_in(cx, |editor, window, cx| {
492 if !selections.is_empty() || pending_selection.is_some() {
493 editor.set_selections_from_remote(selections, pending_selection, window, cx);
494 editor.request_autoscroll_remotely(Autoscroll::newest(), cx);
495 } else if let Some(scroll_top_anchor) = scroll_top_anchor {
496 editor.set_scroll_anchor_remote(
497 ScrollAnchor {
498 anchor: scroll_top_anchor,
499 offset: point(message.scroll_x, message.scroll_y),
500 },
501 window,
502 cx,
503 );
504 }
505 })?;
506 Ok(())
507}
508
509fn serialize_excerpt(
510 buffer_id: BufferId,
511 id: &ExcerptId,
512 range: &ExcerptRange<language::Anchor>,
513) -> Option<proto::Excerpt> {
514 Some(proto::Excerpt {
515 id: id.to_proto(),
516 buffer_id: buffer_id.into(),
517 context_start: Some(serialize_text_anchor(&range.context.start)),
518 context_end: Some(serialize_text_anchor(&range.context.end)),
519 primary_start: Some(serialize_text_anchor(&range.primary.start)),
520 primary_end: Some(serialize_text_anchor(&range.primary.end)),
521 })
522}
523
524fn serialize_selection(
525 selection: &Selection<Anchor>,
526 buffer: &MultiBufferSnapshot,
527) -> proto::Selection {
528 proto::Selection {
529 id: selection.id as u64,
530 start: Some(serialize_anchor(&selection.start, buffer)),
531 end: Some(serialize_anchor(&selection.end, buffer)),
532 reversed: selection.reversed,
533 }
534}
535
536fn serialize_anchor(anchor: &Anchor, buffer: &MultiBufferSnapshot) -> proto::EditorAnchor {
537 proto::EditorAnchor {
538 excerpt_id: buffer.latest_excerpt_id(anchor.excerpt_id).to_proto(),
539 anchor: Some(serialize_text_anchor(&anchor.text_anchor)),
540 }
541}
542
543fn deserialize_excerpt_range(
544 excerpt: proto::Excerpt,
545) -> Option<(ExcerptId, ExcerptRange<language::Anchor>)> {
546 let context = {
547 let start = language::proto::deserialize_anchor(excerpt.context_start?)?;
548 let end = language::proto::deserialize_anchor(excerpt.context_end?)?;
549 start..end
550 };
551 let primary = excerpt
552 .primary_start
553 .zip(excerpt.primary_end)
554 .and_then(|(start, end)| {
555 let start = language::proto::deserialize_anchor(start)?;
556 let end = language::proto::deserialize_anchor(end)?;
557 Some(start..end)
558 })
559 .unwrap_or_else(|| context.clone());
560 Some((
561 ExcerptId::from_proto(excerpt.id),
562 ExcerptRange { context, primary },
563 ))
564}
565
566fn deserialize_selection(selection: proto::Selection) -> Option<Selection<Anchor>> {
567 Some(Selection {
568 id: selection.id as usize,
569 start: deserialize_anchor(selection.start?)?,
570 end: deserialize_anchor(selection.end?)?,
571 reversed: selection.reversed,
572 goal: SelectionGoal::None,
573 })
574}
575
576fn deserialize_anchor(anchor: proto::EditorAnchor) -> Option<Anchor> {
577 let excerpt_id = ExcerptId::from_proto(anchor.excerpt_id);
578 Some(Anchor::in_buffer(
579 excerpt_id,
580 language::proto::deserialize_anchor(anchor.anchor?)?,
581 ))
582}
583
584impl Item for Editor {
585 type Event = EditorEvent;
586
587 fn act_as_type<'a>(
588 &'a self,
589 type_id: TypeId,
590 self_handle: &'a Entity<Self>,
591 cx: &'a App,
592 ) -> Option<gpui::AnyEntity> {
593 if TypeId::of::<Self>() == type_id {
594 Some(self_handle.clone().into())
595 } else if TypeId::of::<MultiBuffer>() == type_id {
596 Some(self_handle.read(cx).buffer.clone().into())
597 } else {
598 None
599 }
600 }
601
602 fn navigate(
603 &mut self,
604 data: Arc<dyn Any + Send>,
605 window: &mut Window,
606 cx: &mut Context<Self>,
607 ) -> bool {
608 if let Some(data) = data.downcast_ref::<NavigationData>() {
609 let newest_selection = self.selections.newest::<Point>(&self.display_snapshot(cx));
610 let buffer = self.buffer.read(cx).read(cx);
611 let offset = if buffer.can_resolve(&data.cursor_anchor) {
612 data.cursor_anchor.to_point(&buffer)
613 } else {
614 buffer.clip_point(data.cursor_position, Bias::Left)
615 };
616
617 let mut scroll_anchor = data.scroll_anchor;
618 if !buffer.can_resolve(&scroll_anchor.anchor) {
619 scroll_anchor.anchor = buffer.anchor_before(
620 buffer.clip_point(Point::new(data.scroll_top_row, 0), Bias::Left),
621 );
622 }
623
624 drop(buffer);
625
626 if newest_selection.head() == offset {
627 false
628 } else {
629 self.set_scroll_anchor(scroll_anchor, window, cx);
630 self.change_selections(
631 SelectionEffects::default().nav_history(false),
632 window,
633 cx,
634 |s| s.select_ranges([offset..offset]),
635 );
636 true
637 }
638 } else {
639 false
640 }
641 }
642
643 fn tab_tooltip_text(&self, cx: &App) -> Option<SharedString> {
644 self.buffer()
645 .read(cx)
646 .as_singleton()
647 .and_then(|buffer| buffer.read(cx).file())
648 .and_then(|file| File::from_dyn(Some(file)))
649 .map(|file| {
650 file.worktree
651 .read(cx)
652 .absolutize(&file.path)
653 .compact()
654 .to_string_lossy()
655 .into_owned()
656 .into()
657 })
658 }
659
660 fn telemetry_event_text(&self) -> Option<&'static str> {
661 None
662 }
663
664 fn tab_content_text(&self, detail: usize, cx: &App) -> SharedString {
665 if let Some(path) = path_for_buffer(&self.buffer, detail, true, cx) {
666 path.to_string().into()
667 } else {
668 // Use the same logic as the displayed title for consistency
669 self.buffer.read(cx).title(cx).to_string().into()
670 }
671 }
672
673 fn suggested_filename(&self, cx: &App) -> SharedString {
674 self.buffer.read(cx).title(cx).to_string().into()
675 }
676
677 fn tab_icon(&self, _: &Window, cx: &App) -> Option<Icon> {
678 ItemSettings::get_global(cx)
679 .file_icons
680 .then(|| {
681 path_for_buffer(&self.buffer, 0, true, cx)
682 .and_then(|path| FileIcons::get_icon(Path::new(&*path), cx))
683 })
684 .flatten()
685 .map(Icon::from_path)
686 }
687
688 fn tab_content(&self, params: TabContentParams, _: &Window, cx: &App) -> AnyElement {
689 let label_color = if ItemSettings::get_global(cx).git_status {
690 self.buffer()
691 .read(cx)
692 .as_singleton()
693 .and_then(|buffer| {
694 let buffer = buffer.read(cx);
695 let path = buffer.project_path(cx)?;
696 let buffer_id = buffer.remote_id();
697 let project = self.project()?.read(cx);
698 let entry = project.entry_for_path(&path, cx)?;
699 let (repo, repo_path) = project
700 .git_store()
701 .read(cx)
702 .repository_and_path_for_buffer_id(buffer_id, cx)?;
703 let status = repo.read(cx).status_for_path(&repo_path)?.status;
704
705 Some(entry_git_aware_label_color(
706 status.summary(),
707 entry.is_ignored,
708 params.selected,
709 ))
710 })
711 .unwrap_or_else(|| entry_label_color(params.selected))
712 } else {
713 entry_label_color(params.selected)
714 };
715
716 let description = params.detail.and_then(|detail| {
717 let path = path_for_buffer(&self.buffer, detail, false, cx)?;
718 let description = path.trim();
719
720 if description.is_empty() {
721 return None;
722 }
723
724 Some(util::truncate_and_trailoff(description, MAX_TAB_TITLE_LEN))
725 });
726
727 // Whether the file was saved in the past but is now deleted.
728 let was_deleted: bool = self
729 .buffer()
730 .read(cx)
731 .as_singleton()
732 .and_then(|buffer| buffer.read(cx).file())
733 .is_some_and(|file| file.disk_state().is_deleted());
734
735 h_flex()
736 .gap_2()
737 .child(
738 Label::new(self.title(cx).to_string())
739 .color(label_color)
740 .when(params.preview, |this| this.italic())
741 .when(was_deleted, |this| this.strikethrough()),
742 )
743 .when_some(description, |this, description| {
744 this.child(
745 Label::new(description)
746 .size(LabelSize::XSmall)
747 .color(Color::Muted),
748 )
749 })
750 .into_any_element()
751 }
752
753 fn for_each_project_item(
754 &self,
755 cx: &App,
756 f: &mut dyn FnMut(EntityId, &dyn project::ProjectItem),
757 ) {
758 self.buffer
759 .read(cx)
760 .for_each_buffer(&mut |buffer| f(buffer.entity_id(), buffer.read(cx)));
761 }
762
763 fn buffer_kind(&self, cx: &App) -> ItemBufferKind {
764 match self.buffer.read(cx).is_singleton() {
765 true => ItemBufferKind::Singleton,
766 false => ItemBufferKind::Multibuffer,
767 }
768 }
769
770 fn can_save_as(&self, cx: &App) -> bool {
771 self.buffer.read(cx).is_singleton()
772 }
773
774 fn can_split(&self) -> bool {
775 true
776 }
777
778 fn clone_on_split(
779 &self,
780 _workspace_id: Option<WorkspaceId>,
781 window: &mut Window,
782 cx: &mut Context<Self>,
783 ) -> Task<Option<Entity<Editor>>>
784 where
785 Self: Sized,
786 {
787 Task::ready(Some(cx.new(|cx| self.clone(window, cx))))
788 }
789
790 fn set_nav_history(
791 &mut self,
792 history: ItemNavHistory,
793 _window: &mut Window,
794 _: &mut Context<Self>,
795 ) {
796 self.nav_history = Some(history);
797 }
798
799 fn on_removed(&self, cx: &mut Context<Self>) {
800 self.report_editor_event(ReportEditorEvent::Closed, None, cx);
801 }
802
803 fn deactivated(&mut self, _: &mut Window, cx: &mut Context<Self>) {
804 let selection = self.selections.newest_anchor();
805 self.push_to_nav_history(selection.head(), None, true, false, cx);
806 }
807
808 fn workspace_deactivated(&mut self, _: &mut Window, cx: &mut Context<Self>) {
809 self.hide_hovered_link(cx);
810 }
811
812 fn is_dirty(&self, cx: &App) -> bool {
813 self.buffer().read(cx).read(cx).is_dirty()
814 }
815
816 fn capability(&self, cx: &App) -> Capability {
817 self.capability(cx)
818 }
819
820 // Note: this mirrors the logic in `Editor::toggle_read_only`, but is reachable
821 // without relying on focus-based action dispatch.
822 fn toggle_read_only(&mut self, window: &mut Window, cx: &mut Context<Self>) {
823 if let Some(buffer) = self.buffer.read(cx).as_singleton() {
824 buffer.update(cx, |buffer, cx| {
825 buffer.set_capability(
826 match buffer.capability() {
827 Capability::ReadWrite => Capability::Read,
828 Capability::Read => Capability::ReadWrite,
829 Capability::ReadOnly => Capability::ReadOnly,
830 },
831 cx,
832 );
833 });
834 }
835 cx.notify();
836 window.refresh();
837 }
838
839 fn has_deleted_file(&self, cx: &App) -> bool {
840 self.buffer().read(cx).read(cx).has_deleted_file()
841 }
842
843 fn has_conflict(&self, cx: &App) -> bool {
844 self.buffer().read(cx).read(cx).has_conflict()
845 }
846
847 fn can_save(&self, cx: &App) -> bool {
848 let buffer = &self.buffer().read(cx);
849 if let Some(buffer) = buffer.as_singleton() {
850 buffer.read(cx).project_path(cx).is_some()
851 } else {
852 true
853 }
854 }
855
856 fn save(
857 &mut self,
858 options: SaveOptions,
859 project: Entity<Project>,
860 window: &mut Window,
861 cx: &mut Context<Self>,
862 ) -> Task<Result<()>> {
863 // Add meta data tracking # of auto saves
864 if options.autosave {
865 self.report_editor_event(ReportEditorEvent::Saved { auto_saved: true }, None, cx);
866 } else {
867 self.report_editor_event(ReportEditorEvent::Saved { auto_saved: false }, None, cx);
868 }
869
870 let buffers = self.buffer().clone().read(cx).all_buffers();
871 let buffers = buffers
872 .into_iter()
873 .map(|handle| handle.read(cx).base_buffer().unwrap_or(handle.clone()))
874 .collect::<HashSet<_>>();
875
876 let buffers_to_save = if self.buffer.read(cx).is_singleton() && !options.autosave {
877 buffers
878 } else {
879 buffers
880 .into_iter()
881 .filter(|buffer| buffer.read(cx).is_dirty())
882 .collect()
883 };
884
885 cx.spawn_in(window, async move |this, cx| {
886 if options.format {
887 this.update_in(cx, |editor, window, cx| {
888 editor.perform_format(
889 project.clone(),
890 FormatTrigger::Save,
891 FormatTarget::Buffers(buffers_to_save.clone()),
892 window,
893 cx,
894 )
895 })?
896 .await?;
897 }
898
899 if !buffers_to_save.is_empty() {
900 project
901 .update(cx, |project, cx| {
902 project.save_buffers(buffers_to_save.clone(), cx)
903 })
904 .await?;
905 }
906
907 Ok(())
908 })
909 }
910
911 fn save_as(
912 &mut self,
913 project: Entity<Project>,
914 path: ProjectPath,
915 _: &mut Window,
916 cx: &mut Context<Self>,
917 ) -> Task<Result<()>> {
918 let buffer = self
919 .buffer()
920 .read(cx)
921 .as_singleton()
922 .expect("cannot call save_as on an excerpt list");
923
924 let file_extension = path.path.extension().map(|a| a.to_string());
925 self.report_editor_event(
926 ReportEditorEvent::Saved { auto_saved: false },
927 file_extension,
928 cx,
929 );
930
931 project.update(cx, |project, cx| project.save_buffer_as(buffer, path, cx))
932 }
933
934 fn reload(
935 &mut self,
936 project: Entity<Project>,
937 window: &mut Window,
938 cx: &mut Context<Self>,
939 ) -> Task<Result<()>> {
940 let buffer = self.buffer().clone();
941 let buffers = self.buffer.read(cx).all_buffers();
942 let reload_buffers =
943 project.update(cx, |project, cx| project.reload_buffers(buffers, true, cx));
944 cx.spawn_in(window, async move |this, cx| {
945 let transaction = reload_buffers.log_err().await;
946 this.update(cx, |editor, cx| {
947 editor.request_autoscroll(Autoscroll::fit(), cx)
948 })?;
949 buffer.update(cx, |buffer, cx| {
950 if let Some(transaction) = transaction
951 && !buffer.is_singleton()
952 {
953 buffer.push_transaction(&transaction.0, cx);
954 }
955 });
956 Ok(())
957 })
958 }
959
960 fn as_searchable(
961 &self,
962 handle: &Entity<Self>,
963 _: &App,
964 ) -> Option<Box<dyn SearchableItemHandle>> {
965 Some(Box::new(handle.clone()))
966 }
967
968 fn pixel_position_of_cursor(&self, _: &App) -> Option<gpui::Point<Pixels>> {
969 self.pixel_position_of_newest_cursor
970 }
971
972 fn breadcrumb_location(&self, cx: &App) -> ToolbarItemLocation {
973 if self.show_breadcrumbs && self.buffer().read(cx).is_singleton() {
974 ToolbarItemLocation::PrimaryLeft
975 } else {
976 ToolbarItemLocation::Hidden
977 }
978 }
979
980 // In a non-singleton case, the breadcrumbs are actually shown on sticky file headers of the multibuffer.
981 fn breadcrumbs(&self, cx: &App) -> Option<Vec<BreadcrumbText>> {
982 if self.buffer.read(cx).is_singleton() {
983 self.breadcrumbs_inner(cx)
984 } else {
985 None
986 }
987 }
988
989 fn added_to_workspace(
990 &mut self,
991 workspace: &mut Workspace,
992 window: &mut Window,
993 cx: &mut Context<Self>,
994 ) {
995 self.workspace = Some((workspace.weak_handle(), workspace.database_id()));
996 if let Some(workspace_entity) = &workspace.weak_handle().upgrade() {
997 cx.subscribe(
998 workspace_entity,
999 |editor, _, event: &workspace::Event, _cx| {
1000 if let workspace::Event::ModalOpened = event {
1001 editor.mouse_context_menu.take();
1002 editor.inline_blame_popover.take();
1003 }
1004 },
1005 )
1006 .detach();
1007 }
1008
1009 // Load persisted folds if this editor doesn't already have folds.
1010 // This handles manually-opened files (not workspace restoration).
1011 let display_snapshot = self
1012 .display_map
1013 .update(cx, |display_map, cx| display_map.snapshot(cx));
1014 let has_folds = display_snapshot
1015 .folds_in_range(MultiBufferOffset(0)..display_snapshot.buffer_snapshot().len())
1016 .next()
1017 .is_some();
1018
1019 if !has_folds {
1020 if let Some(workspace_id) = workspace.database_id()
1021 && let Some(file_path) = self.buffer().read(cx).as_singleton().and_then(|buffer| {
1022 project::File::from_dyn(buffer.read(cx).file()).map(|file| file.abs_path(cx))
1023 })
1024 {
1025 self.load_folds_from_db(workspace_id, file_path, window, cx);
1026 }
1027 }
1028 }
1029
1030 fn pane_changed(&mut self, new_pane_id: EntityId, cx: &mut Context<Self>) {
1031 if self
1032 .highlighted_rows
1033 .get(&TypeId::of::<ActiveDebugLine>())
1034 .is_some_and(|lines| !lines.is_empty())
1035 && let Some(breakpoint_store) = self.breakpoint_store.as_ref()
1036 {
1037 breakpoint_store.update(cx, |store, _cx| {
1038 store.set_active_debug_pane_id(new_pane_id);
1039 });
1040 }
1041 }
1042
1043 fn to_item_events(event: &EditorEvent, f: &mut dyn FnMut(ItemEvent)) {
1044 match event {
1045 EditorEvent::Saved | EditorEvent::TitleChanged => {
1046 f(ItemEvent::UpdateTab);
1047 f(ItemEvent::UpdateBreadcrumbs);
1048 }
1049
1050 EditorEvent::Reparsed(_) => {
1051 f(ItemEvent::UpdateBreadcrumbs);
1052 }
1053
1054 EditorEvent::SelectionsChanged { local } if *local => {
1055 f(ItemEvent::UpdateBreadcrumbs);
1056 }
1057
1058 EditorEvent::BreadcrumbsChanged => {
1059 f(ItemEvent::UpdateBreadcrumbs);
1060 }
1061
1062 EditorEvent::DirtyChanged => {
1063 f(ItemEvent::UpdateTab);
1064 }
1065
1066 EditorEvent::BufferEdited => {
1067 f(ItemEvent::Edit);
1068 f(ItemEvent::UpdateBreadcrumbs);
1069 }
1070
1071 EditorEvent::ExcerptsAdded { .. } | EditorEvent::ExcerptsRemoved { .. } => {
1072 f(ItemEvent::Edit);
1073 }
1074
1075 _ => {}
1076 }
1077 }
1078
1079 fn tab_extra_context_menu_actions(
1080 &self,
1081 _window: &mut Window,
1082 cx: &mut Context<Self>,
1083 ) -> Vec<(SharedString, Box<dyn gpui::Action>)> {
1084 let mut actions = Vec::new();
1085
1086 let is_markdown = self
1087 .buffer()
1088 .read(cx)
1089 .as_singleton()
1090 .and_then(|buffer| buffer.read(cx).language())
1091 .is_some_and(|language| language.name().as_ref() == "Markdown");
1092
1093 let is_svg = self
1094 .buffer()
1095 .read(cx)
1096 .as_singleton()
1097 .and_then(|buffer| buffer.read(cx).file())
1098 .is_some_and(|file| {
1099 std::path::Path::new(file.file_name(cx))
1100 .extension()
1101 .is_some_and(|ext| ext.eq_ignore_ascii_case("svg"))
1102 });
1103
1104 if is_markdown {
1105 actions.push((
1106 "Open Markdown Preview".into(),
1107 Box::new(OpenMarkdownPreview) as Box<dyn gpui::Action>,
1108 ));
1109 }
1110
1111 if is_svg {
1112 actions.push((
1113 "Open SVG Preview".into(),
1114 Box::new(OpenSvgPreview) as Box<dyn gpui::Action>,
1115 ));
1116 }
1117
1118 actions
1119 }
1120
1121 fn preserve_preview(&self, cx: &App) -> bool {
1122 self.buffer.read(cx).preserve_preview(cx)
1123 }
1124}
1125
1126impl SerializableItem for Editor {
1127 fn serialized_item_kind() -> &'static str {
1128 "Editor"
1129 }
1130
1131 fn cleanup(
1132 workspace_id: WorkspaceId,
1133 alive_items: Vec<ItemId>,
1134 _window: &mut Window,
1135 cx: &mut App,
1136 ) -> Task<Result<()>> {
1137 workspace::delete_unloaded_items(alive_items, workspace_id, "editors", &DB, cx)
1138 }
1139
1140 fn deserialize(
1141 project: Entity<Project>,
1142 workspace: WeakEntity<Workspace>,
1143 workspace_id: workspace::WorkspaceId,
1144 item_id: ItemId,
1145 window: &mut Window,
1146 cx: &mut App,
1147 ) -> Task<Result<Entity<Self>>> {
1148 let serialized_editor = match DB
1149 .get_serialized_editor(item_id, workspace_id)
1150 .context("Failed to query editor state")
1151 {
1152 Ok(Some(serialized_editor)) => {
1153 if ProjectSettings::get_global(cx)
1154 .session
1155 .restore_unsaved_buffers
1156 {
1157 serialized_editor
1158 } else {
1159 SerializedEditor {
1160 abs_path: serialized_editor.abs_path,
1161 contents: None,
1162 language: None,
1163 mtime: None,
1164 }
1165 }
1166 }
1167 Ok(None) => {
1168 return Task::ready(Err(anyhow!(
1169 "Unable to deserialize editor: No entry in database for item_id: {item_id} and workspace_id {workspace_id:?}"
1170 )));
1171 }
1172 Err(error) => {
1173 return Task::ready(Err(error));
1174 }
1175 };
1176 log::debug!(
1177 "Deserialized editor {item_id:?} in workspace {workspace_id:?}, {serialized_editor:?}"
1178 );
1179
1180 match serialized_editor {
1181 SerializedEditor {
1182 abs_path: None,
1183 contents: Some(contents),
1184 language,
1185 ..
1186 } => window.spawn(cx, {
1187 let project = project.clone();
1188 async move |cx| {
1189 let language_registry =
1190 project.read_with(cx, |project, _| project.languages().clone());
1191
1192 let language = if let Some(language_name) = language {
1193 // We don't fail here, because we'd rather not set the language if the name changed
1194 // than fail to restore the buffer.
1195 language_registry
1196 .language_for_name(&language_name)
1197 .await
1198 .ok()
1199 } else {
1200 None
1201 };
1202
1203 // First create the empty buffer
1204 let buffer = project
1205 .update(cx, |project, cx| project.create_buffer(language, true, cx))
1206 .await
1207 .context("Failed to create buffer while deserializing editor")?;
1208
1209 // Then set the text so that the dirty bit is set correctly
1210 buffer.update(cx, |buffer, cx| {
1211 buffer.set_language_registry(language_registry);
1212 buffer.set_text(contents, cx);
1213 if let Some(entry) = buffer.peek_undo_stack() {
1214 buffer.forget_transaction(entry.transaction_id());
1215 }
1216 });
1217
1218 cx.update(|window, cx| {
1219 cx.new(|cx| {
1220 let mut editor = Editor::for_buffer(buffer, Some(project), window, cx);
1221
1222 editor.read_metadata_from_db(item_id, workspace_id, window, cx);
1223 editor
1224 })
1225 })
1226 }
1227 }),
1228 SerializedEditor {
1229 abs_path: Some(abs_path),
1230 contents,
1231 mtime,
1232 ..
1233 } => {
1234 let opened_buffer = project.update(cx, |project, cx| {
1235 let (worktree, path) = project.find_worktree(&abs_path, cx)?;
1236 let project_path = ProjectPath {
1237 worktree_id: worktree.read(cx).id(),
1238 path: path,
1239 };
1240 Some(project.open_path(project_path, cx))
1241 });
1242
1243 match opened_buffer {
1244 Some(opened_buffer) => window.spawn(cx, async move |cx| {
1245 let (_, buffer) = opened_buffer
1246 .await
1247 .context("Failed to open path in project")?;
1248
1249 if let Some(contents) = contents {
1250 buffer.update(cx, |buffer, cx| {
1251 restore_serialized_buffer_contents(buffer, contents, mtime, cx);
1252 });
1253 }
1254
1255 cx.update(|window, cx| {
1256 cx.new(|cx| {
1257 let mut editor =
1258 Editor::for_buffer(buffer, Some(project), window, cx);
1259
1260 editor.read_metadata_from_db(item_id, workspace_id, window, cx);
1261 editor
1262 })
1263 })
1264 }),
1265 None => {
1266 // File is not in any worktree (e.g., opened as a standalone file)
1267 // We need to open it via workspace and then restore dirty contents
1268 window.spawn(cx, async move |cx| {
1269 let open_by_abs_path =
1270 workspace.update_in(cx, |workspace, window, cx| {
1271 workspace.open_abs_path(
1272 abs_path.clone(),
1273 OpenOptions {
1274 visible: Some(OpenVisible::None),
1275 ..Default::default()
1276 },
1277 window,
1278 cx,
1279 )
1280 })?;
1281 let editor =
1282 open_by_abs_path.await?.downcast::<Editor>().with_context(
1283 || format!("path {abs_path:?} cannot be opened as an Editor"),
1284 )?;
1285
1286 if let Some(contents) = contents {
1287 editor.update_in(cx, |editor, _window, cx| {
1288 if let Some(buffer) = editor.buffer().read(cx).as_singleton() {
1289 buffer.update(cx, |buffer, cx| {
1290 restore_serialized_buffer_contents(
1291 buffer, contents, mtime, cx,
1292 );
1293 });
1294 }
1295 })?;
1296 }
1297
1298 editor.update_in(cx, |editor, window, cx| {
1299 editor.read_metadata_from_db(item_id, workspace_id, window, cx);
1300 })?;
1301 Ok(editor)
1302 })
1303 }
1304 }
1305 }
1306 SerializedEditor {
1307 abs_path: None,
1308 contents: None,
1309 ..
1310 } => window.spawn(cx, async move |cx| {
1311 let buffer = project
1312 .update(cx, |project, cx| project.create_buffer(None, true, cx))
1313 .await
1314 .context("Failed to create buffer")?;
1315
1316 cx.update(|window, cx| {
1317 cx.new(|cx| {
1318 let mut editor = Editor::for_buffer(buffer, Some(project), window, cx);
1319
1320 editor.read_metadata_from_db(item_id, workspace_id, window, cx);
1321 editor
1322 })
1323 })
1324 }),
1325 }
1326 }
1327
1328 fn serialize(
1329 &mut self,
1330 workspace: &mut Workspace,
1331 item_id: ItemId,
1332 closing: bool,
1333 window: &mut Window,
1334 cx: &mut Context<Self>,
1335 ) -> Option<Task<Result<()>>> {
1336 let buffer_serialization = self.buffer_serialization?;
1337 let project = self.project.clone()?;
1338
1339 let serialize_dirty_buffers = match buffer_serialization {
1340 // Always serialize dirty buffers, including for worktree-less windows.
1341 // This enables hot-exit functionality for empty windows and single files.
1342 BufferSerialization::All => true,
1343 BufferSerialization::NonDirtyBuffers => false,
1344 };
1345
1346 if closing && !serialize_dirty_buffers {
1347 return None;
1348 }
1349
1350 let workspace_id = workspace.database_id()?;
1351
1352 let buffer = self.buffer().read(cx).as_singleton()?;
1353
1354 let abs_path = buffer.read(cx).file().and_then(|file| {
1355 let worktree_id = file.worktree_id(cx);
1356 project
1357 .read(cx)
1358 .worktree_for_id(worktree_id, cx)
1359 .map(|worktree| worktree.read(cx).absolutize(file.path()))
1360 .or_else(|| {
1361 let full_path = file.full_path(cx);
1362 let project_path = project.read(cx).find_project_path(&full_path, cx)?;
1363 project.read(cx).absolute_path(&project_path, cx)
1364 })
1365 });
1366
1367 let is_dirty = buffer.read(cx).is_dirty();
1368 let mtime = buffer.read(cx).saved_mtime();
1369
1370 let snapshot = buffer.read(cx).snapshot();
1371
1372 Some(cx.spawn_in(window, async move |_this, cx| {
1373 cx.background_spawn(async move {
1374 let (contents, language) = if serialize_dirty_buffers && is_dirty {
1375 let contents = snapshot.text();
1376 let language = snapshot.language().map(|lang| lang.name().to_string());
1377 (Some(contents), language)
1378 } else {
1379 (None, None)
1380 };
1381
1382 let editor = SerializedEditor {
1383 abs_path,
1384 contents,
1385 language,
1386 mtime,
1387 };
1388 log::debug!("Serializing editor {item_id:?} in workspace {workspace_id:?}");
1389 DB.save_serialized_editor(item_id, workspace_id, editor)
1390 .await
1391 .context("failed to save serialized editor")
1392 })
1393 .await
1394 .context("failed to save contents of buffer")?;
1395
1396 Ok(())
1397 }))
1398 }
1399
1400 fn should_serialize(&self, event: &Self::Event) -> bool {
1401 self.should_serialize_buffer()
1402 && matches!(
1403 event,
1404 EditorEvent::Saved | EditorEvent::DirtyChanged | EditorEvent::BufferEdited
1405 )
1406 }
1407}
1408
1409#[derive(Debug, Default)]
1410struct EditorRestorationData {
1411 entries: HashMap<PathBuf, RestorationData>,
1412}
1413
1414#[derive(Default, Debug)]
1415pub struct RestorationData {
1416 pub scroll_position: (BufferRow, gpui::Point<ScrollOffset>),
1417 pub folds: Vec<Range<Point>>,
1418 pub selections: Vec<Range<Point>>,
1419}
1420
1421impl ProjectItem for Editor {
1422 type Item = Buffer;
1423
1424 fn project_item_kind() -> Option<ProjectItemKind> {
1425 Some(ProjectItemKind("Editor"))
1426 }
1427
1428 fn for_project_item(
1429 project: Entity<Project>,
1430 pane: Option<&Pane>,
1431 buffer: Entity<Buffer>,
1432 window: &mut Window,
1433 cx: &mut Context<Self>,
1434 ) -> Self {
1435 let mut editor = Self::for_buffer(buffer.clone(), Some(project), window, cx);
1436
1437 if let Some((excerpt_id, _, snapshot)) =
1438 editor.buffer().read(cx).snapshot(cx).as_singleton()
1439 && WorkspaceSettings::get(None, cx).restore_on_file_reopen
1440 && let Some(restoration_data) = Self::project_item_kind()
1441 .and_then(|kind| pane.as_ref()?.project_item_restoration_data.get(&kind))
1442 .and_then(|data| data.downcast_ref::<EditorRestorationData>())
1443 .and_then(|data| {
1444 let file = project::File::from_dyn(buffer.read(cx).file())?;
1445 data.entries.get(&file.abs_path(cx))
1446 })
1447 {
1448 if !restoration_data.folds.is_empty() {
1449 editor.fold_ranges(
1450 clip_ranges(&restoration_data.folds, snapshot),
1451 false,
1452 window,
1453 cx,
1454 );
1455 }
1456 if !restoration_data.selections.is_empty() {
1457 editor.change_selections(SelectionEffects::no_scroll(), window, cx, |s| {
1458 s.select_ranges(clip_ranges(&restoration_data.selections, snapshot));
1459 });
1460 }
1461 let (top_row, offset) = restoration_data.scroll_position;
1462 let anchor =
1463 Anchor::in_buffer(excerpt_id, snapshot.anchor_before(Point::new(top_row, 0)));
1464 editor.set_scroll_anchor(ScrollAnchor { anchor, offset }, window, cx);
1465 }
1466
1467 editor
1468 }
1469
1470 fn for_broken_project_item(
1471 abs_path: &Path,
1472 is_local: bool,
1473 e: &anyhow::Error,
1474 window: &mut Window,
1475 cx: &mut App,
1476 ) -> Option<InvalidItemView> {
1477 Some(InvalidItemView::new(abs_path, is_local, e, window, cx))
1478 }
1479}
1480
1481fn clip_ranges<'a>(
1482 original: impl IntoIterator<Item = &'a Range<Point>> + 'a,
1483 snapshot: &'a BufferSnapshot,
1484) -> Vec<Range<Point>> {
1485 original
1486 .into_iter()
1487 .map(|range| {
1488 snapshot.clip_point(range.start, Bias::Left)
1489 ..snapshot.clip_point(range.end, Bias::Right)
1490 })
1491 .collect()
1492}
1493
1494impl EventEmitter<SearchEvent> for Editor {}
1495
1496impl Editor {
1497 pub fn update_restoration_data(
1498 &self,
1499 cx: &mut Context<Self>,
1500 write: impl for<'a> FnOnce(&'a mut RestorationData) + 'static,
1501 ) {
1502 if self.mode.is_minimap() || !WorkspaceSettings::get(None, cx).restore_on_file_reopen {
1503 return;
1504 }
1505
1506 let editor = cx.entity();
1507 cx.defer(move |cx| {
1508 editor.update(cx, |editor, cx| {
1509 let kind = Editor::project_item_kind()?;
1510 let pane = editor.workspace()?.read(cx).pane_for(&cx.entity())?;
1511 let buffer = editor.buffer().read(cx).as_singleton()?;
1512 let file_abs_path = project::File::from_dyn(buffer.read(cx).file())?.abs_path(cx);
1513 pane.update(cx, |pane, _| {
1514 let data = pane
1515 .project_item_restoration_data
1516 .entry(kind)
1517 .or_insert_with(|| Box::new(EditorRestorationData::default()) as Box<_>);
1518 let data = match data.downcast_mut::<EditorRestorationData>() {
1519 Some(data) => data,
1520 None => {
1521 *data = Box::new(EditorRestorationData::default());
1522 data.downcast_mut::<EditorRestorationData>()
1523 .expect("just written the type downcasted to")
1524 }
1525 };
1526
1527 let data = data.entries.entry(file_abs_path).or_default();
1528 write(data);
1529 Some(())
1530 })
1531 });
1532 });
1533 }
1534}
1535
1536impl SearchableItem for Editor {
1537 type Match = Range<Anchor>;
1538
1539 fn get_matches(&self, _window: &mut Window, _: &mut App) -> (Vec<Range<Anchor>>, SearchToken) {
1540 (
1541 self.background_highlights
1542 .get(&HighlightKey::BufferSearchHighlights)
1543 .map_or(Vec::new(), |(_color, ranges)| {
1544 ranges.iter().cloned().collect()
1545 }),
1546 SearchToken::default(),
1547 )
1548 }
1549
1550 fn clear_matches(&mut self, _: &mut Window, cx: &mut Context<Self>) {
1551 if self
1552 .clear_background_highlights(HighlightKey::BufferSearchHighlights, cx)
1553 .is_some()
1554 {
1555 cx.emit(SearchEvent::MatchesInvalidated);
1556 }
1557 }
1558
1559 fn update_matches(
1560 &mut self,
1561 matches: &[Range<Anchor>],
1562 active_match_index: Option<usize>,
1563 _token: SearchToken,
1564 _: &mut Window,
1565 cx: &mut Context<Self>,
1566 ) {
1567 let existing_range = self
1568 .background_highlights
1569 .get(&HighlightKey::BufferSearchHighlights)
1570 .map(|(_, range)| range.as_ref());
1571 let updated = existing_range != Some(matches);
1572 self.highlight_background(
1573 HighlightKey::BufferSearchHighlights,
1574 matches,
1575 move |index, theme| {
1576 if active_match_index == Some(*index) {
1577 theme.colors().search_active_match_background
1578 } else {
1579 theme.colors().search_match_background
1580 }
1581 },
1582 cx,
1583 );
1584 if updated {
1585 cx.emit(SearchEvent::MatchesInvalidated);
1586 }
1587 }
1588
1589 fn has_filtered_search_ranges(&mut self) -> bool {
1590 self.has_background_highlights(HighlightKey::SearchWithinRange)
1591 }
1592
1593 fn toggle_filtered_search_ranges(
1594 &mut self,
1595 enabled: Option<FilteredSearchRange>,
1596 _: &mut Window,
1597 cx: &mut Context<Self>,
1598 ) {
1599 if self.has_filtered_search_ranges() {
1600 self.previous_search_ranges = self
1601 .clear_background_highlights(HighlightKey::SearchWithinRange, cx)
1602 .map(|(_, ranges)| ranges)
1603 }
1604
1605 if let Some(range) = enabled {
1606 let ranges = self.selections.disjoint_anchor_ranges().collect::<Vec<_>>();
1607
1608 if ranges.iter().any(|s| s.start != s.end) {
1609 self.set_search_within_ranges(&ranges, cx);
1610 } else if let Some(previous_search_ranges) = self.previous_search_ranges.take()
1611 && range != FilteredSearchRange::Selection
1612 {
1613 self.set_search_within_ranges(&previous_search_ranges, cx);
1614 }
1615 }
1616 }
1617
1618 fn supported_options(&self) -> SearchOptions {
1619 if self.in_project_search {
1620 SearchOptions {
1621 case: true,
1622 word: true,
1623 regex: true,
1624 replacement: false,
1625 selection: false,
1626 find_in_results: true,
1627 }
1628 } else {
1629 SearchOptions {
1630 case: true,
1631 word: true,
1632 regex: true,
1633 replacement: true,
1634 selection: true,
1635 find_in_results: false,
1636 }
1637 }
1638 }
1639
1640 fn query_suggestion(&mut self, window: &mut Window, cx: &mut Context<Self>) -> String {
1641 let setting = EditorSettings::get_global(cx).seed_search_query_from_cursor;
1642 let snapshot = self.snapshot(window, cx);
1643 let selection = self.selections.newest_adjusted(&snapshot.display_snapshot);
1644 let buffer_snapshot = snapshot.buffer_snapshot();
1645
1646 match setting {
1647 SeedQuerySetting::Never => String::new(),
1648 SeedQuerySetting::Selection | SeedQuerySetting::Always if !selection.is_empty() => {
1649 let text: String = buffer_snapshot
1650 .text_for_range(selection.start..selection.end)
1651 .collect();
1652 if text.contains('\n') {
1653 String::new()
1654 } else {
1655 text
1656 }
1657 }
1658 SeedQuerySetting::Selection => String::new(),
1659 SeedQuerySetting::Always => {
1660 let (range, kind) = buffer_snapshot
1661 .surrounding_word(selection.start, Some(CharScopeContext::Completion));
1662 if kind == Some(CharKind::Word) {
1663 let text: String = buffer_snapshot.text_for_range(range).collect();
1664 if !text.trim().is_empty() {
1665 return text;
1666 }
1667 }
1668 String::new()
1669 }
1670 }
1671 }
1672
1673 fn activate_match(
1674 &mut self,
1675 index: usize,
1676 matches: &[Range<Anchor>],
1677 _token: SearchToken,
1678 window: &mut Window,
1679 cx: &mut Context<Self>,
1680 ) {
1681 self.unfold_ranges(&[matches[index].clone()], false, true, cx);
1682 let range = self.range_for_match(&matches[index]);
1683 let autoscroll = if EditorSettings::get_global(cx).search.center_on_match {
1684 Autoscroll::center()
1685 } else {
1686 Autoscroll::fit()
1687 };
1688 self.change_selections(SelectionEffects::scroll(autoscroll), window, cx, |s| {
1689 s.select_ranges([range]);
1690 })
1691 }
1692
1693 fn select_matches(
1694 &mut self,
1695 matches: &[Self::Match],
1696 _token: SearchToken,
1697 window: &mut Window,
1698 cx: &mut Context<Self>,
1699 ) {
1700 self.unfold_ranges(matches, false, false, cx);
1701 self.change_selections(SelectionEffects::no_scroll(), window, cx, |s| {
1702 s.select_ranges(matches.iter().cloned())
1703 });
1704 }
1705 fn replace(
1706 &mut self,
1707 identifier: &Self::Match,
1708 query: &SearchQuery,
1709 _token: SearchToken,
1710 window: &mut Window,
1711 cx: &mut Context<Self>,
1712 ) {
1713 let text = self.buffer.read(cx);
1714 let text = text.snapshot(cx);
1715 let text = text.text_for_range(identifier.clone()).collect::<Vec<_>>();
1716 let text: Cow<_> = if text.len() == 1 {
1717 text.first().cloned().unwrap().into()
1718 } else {
1719 let joined_chunks = text.join("");
1720 joined_chunks.into()
1721 };
1722
1723 if let Some(replacement) = query.replacement_for(&text) {
1724 self.transact(window, cx, |this, _, cx| {
1725 this.edit([(identifier.clone(), Arc::from(&*replacement))], cx);
1726 });
1727 }
1728 }
1729 fn replace_all(
1730 &mut self,
1731 matches: &mut dyn Iterator<Item = &Self::Match>,
1732 query: &SearchQuery,
1733 _token: SearchToken,
1734 window: &mut Window,
1735 cx: &mut Context<Self>,
1736 ) {
1737 let text = self.buffer.read(cx);
1738 let text = text.snapshot(cx);
1739 let mut edits = vec![];
1740
1741 // A regex might have replacement variables so we cannot apply
1742 // the same replacement to all matches
1743 if query.is_regex() {
1744 edits = matches
1745 .filter_map(|m| {
1746 let text = text.text_for_range(m.clone()).collect::<Vec<_>>();
1747
1748 let text: Cow<_> = if text.len() == 1 {
1749 text.first().cloned().unwrap().into()
1750 } else {
1751 let joined_chunks = text.join("");
1752 joined_chunks.into()
1753 };
1754
1755 query
1756 .replacement_for(&text)
1757 .map(|replacement| (m.clone(), Arc::from(&*replacement)))
1758 })
1759 .collect();
1760 } else if let Some(replacement) = query.replacement().map(Arc::<str>::from) {
1761 edits = matches.map(|m| (m.clone(), replacement.clone())).collect();
1762 }
1763
1764 if !edits.is_empty() {
1765 self.transact(window, cx, |this, _, cx| {
1766 this.edit(edits, cx);
1767 });
1768 }
1769 }
1770 fn match_index_for_direction(
1771 &mut self,
1772 matches: &[Range<Anchor>],
1773 current_index: usize,
1774 direction: Direction,
1775 count: usize,
1776 _token: SearchToken,
1777 _: &mut Window,
1778 cx: &mut Context<Self>,
1779 ) -> usize {
1780 let buffer = self.buffer().read(cx).snapshot(cx);
1781 let current_index_position = if self.selections.disjoint_anchors_arc().len() == 1 {
1782 self.selections.newest_anchor().head()
1783 } else {
1784 matches[current_index].start
1785 };
1786
1787 let mut count = count % matches.len();
1788 if count == 0 {
1789 return current_index;
1790 }
1791 match direction {
1792 Direction::Next => {
1793 if matches[current_index]
1794 .start
1795 .cmp(¤t_index_position, &buffer)
1796 .is_gt()
1797 {
1798 count -= 1
1799 }
1800
1801 (current_index + count) % matches.len()
1802 }
1803 Direction::Prev => {
1804 if matches[current_index]
1805 .end
1806 .cmp(¤t_index_position, &buffer)
1807 .is_lt()
1808 {
1809 count -= 1;
1810 }
1811
1812 if current_index >= count {
1813 current_index - count
1814 } else {
1815 matches.len() - (count - current_index)
1816 }
1817 }
1818 }
1819 }
1820
1821 fn find_matches(
1822 &mut self,
1823 query: Arc<project::search::SearchQuery>,
1824 _: &mut Window,
1825 cx: &mut Context<Self>,
1826 ) -> Task<Vec<Range<Anchor>>> {
1827 let buffer = self.buffer().read(cx).snapshot(cx);
1828 let search_within_ranges = self
1829 .background_highlights
1830 .get(&HighlightKey::SearchWithinRange)
1831 .map_or(vec![], |(_color, ranges)| {
1832 ranges.iter().cloned().collect::<Vec<_>>()
1833 });
1834
1835 cx.background_spawn(async move {
1836 let mut ranges = Vec::new();
1837
1838 let search_within_ranges = if search_within_ranges.is_empty() {
1839 vec![buffer.anchor_before(MultiBufferOffset(0))..buffer.anchor_after(buffer.len())]
1840 } else {
1841 search_within_ranges
1842 };
1843
1844 for range in search_within_ranges {
1845 for (search_buffer, search_range, excerpt_id, deleted_hunk_anchor) in
1846 buffer.range_to_buffer_ranges_with_deleted_hunks(range)
1847 {
1848 ranges.extend(
1849 query
1850 .search(
1851 search_buffer,
1852 Some(search_range.start.0..search_range.end.0),
1853 )
1854 .await
1855 .into_iter()
1856 .map(|match_range| {
1857 if let Some(deleted_hunk_anchor) = deleted_hunk_anchor {
1858 let start = search_buffer
1859 .anchor_after(search_range.start + match_range.start);
1860 let end = search_buffer
1861 .anchor_before(search_range.start + match_range.end);
1862 deleted_hunk_anchor.with_diff_base_anchor(start)
1863 ..deleted_hunk_anchor.with_diff_base_anchor(end)
1864 } else {
1865 let start = search_buffer
1866 .anchor_after(search_range.start + match_range.start);
1867 let end = search_buffer
1868 .anchor_before(search_range.start + match_range.end);
1869 Anchor::range_in_buffer(excerpt_id, start..end)
1870 }
1871 }),
1872 );
1873 }
1874 }
1875
1876 ranges
1877 })
1878 }
1879
1880 fn active_match_index(
1881 &mut self,
1882 direction: Direction,
1883 matches: &[Range<Anchor>],
1884 _token: SearchToken,
1885 _: &mut Window,
1886 cx: &mut Context<Self>,
1887 ) -> Option<usize> {
1888 active_match_index(
1889 direction,
1890 matches,
1891 &self.selections.newest_anchor().head(),
1892 &self.buffer().read(cx).snapshot(cx),
1893 )
1894 }
1895
1896 fn search_bar_visibility_changed(&mut self, _: bool, _: &mut Window, _: &mut Context<Self>) {
1897 self.expect_bounds_change = self.last_bounds;
1898 }
1899
1900 fn set_search_is_case_sensitive(
1901 &mut self,
1902 case_sensitive: Option<bool>,
1903 _cx: &mut Context<Self>,
1904 ) {
1905 self.select_next_is_case_sensitive = case_sensitive;
1906 }
1907}
1908
1909pub fn active_match_index(
1910 direction: Direction,
1911 ranges: &[Range<Anchor>],
1912 cursor: &Anchor,
1913 buffer: &MultiBufferSnapshot,
1914) -> Option<usize> {
1915 if ranges.is_empty() {
1916 None
1917 } else {
1918 let r = ranges.binary_search_by(|probe| {
1919 if probe.end.cmp(cursor, buffer).is_lt() {
1920 Ordering::Less
1921 } else if probe.start.cmp(cursor, buffer).is_gt() {
1922 Ordering::Greater
1923 } else {
1924 Ordering::Equal
1925 }
1926 });
1927 match direction {
1928 Direction::Prev => match r {
1929 Ok(i) => Some(i),
1930 Err(i) => Some(i.saturating_sub(1)),
1931 },
1932 Direction::Next => match r {
1933 Ok(i) | Err(i) => Some(cmp::min(i, ranges.len() - 1)),
1934 },
1935 }
1936 }
1937}
1938
1939pub fn entry_label_color(selected: bool) -> Color {
1940 if selected {
1941 Color::Default
1942 } else {
1943 Color::Muted
1944 }
1945}
1946
1947pub fn entry_diagnostic_aware_icon_name_and_color(
1948 diagnostic_severity: Option<DiagnosticSeverity>,
1949) -> Option<(IconName, Color)> {
1950 match diagnostic_severity {
1951 Some(DiagnosticSeverity::ERROR) => Some((IconName::Close, Color::Error)),
1952 Some(DiagnosticSeverity::WARNING) => Some((IconName::Triangle, Color::Warning)),
1953 _ => None,
1954 }
1955}
1956
1957pub fn entry_diagnostic_aware_icon_decoration_and_color(
1958 diagnostic_severity: Option<DiagnosticSeverity>,
1959) -> Option<(IconDecorationKind, Color)> {
1960 match diagnostic_severity {
1961 Some(DiagnosticSeverity::ERROR) => Some((IconDecorationKind::X, Color::Error)),
1962 Some(DiagnosticSeverity::WARNING) => Some((IconDecorationKind::Triangle, Color::Warning)),
1963 _ => None,
1964 }
1965}
1966
1967pub fn entry_git_aware_label_color(git_status: GitSummary, ignored: bool, selected: bool) -> Color {
1968 let tracked = git_status.index + git_status.worktree;
1969 if git_status.conflict > 0 {
1970 Color::Conflict
1971 } else if tracked.modified > 0 {
1972 Color::Modified
1973 } else if tracked.added > 0 || git_status.untracked > 0 {
1974 Color::Created
1975 } else if ignored {
1976 Color::Ignored
1977 } else {
1978 entry_label_color(selected)
1979 }
1980}
1981
1982fn path_for_buffer<'a>(
1983 buffer: &Entity<MultiBuffer>,
1984 height: usize,
1985 include_filename: bool,
1986 cx: &'a App,
1987) -> Option<Cow<'a, str>> {
1988 let file = buffer.read(cx).as_singleton()?.read(cx).file()?;
1989 path_for_file(file, height, include_filename, cx)
1990}
1991
1992fn path_for_file<'a>(
1993 file: &'a Arc<dyn language::File>,
1994 mut height: usize,
1995 include_filename: bool,
1996 cx: &'a App,
1997) -> Option<Cow<'a, str>> {
1998 if project::File::from_dyn(Some(file)).is_none() {
1999 return None;
2000 }
2001
2002 let file = file.as_ref();
2003 // Ensure we always render at least the filename.
2004 height += 1;
2005
2006 let mut prefix = file.path().as_ref();
2007 while height > 0 {
2008 if let Some(parent) = prefix.parent() {
2009 prefix = parent;
2010 height -= 1;
2011 } else {
2012 break;
2013 }
2014 }
2015
2016 // The full_path method allocates, so avoid calling it if height is zero.
2017 if height > 0 {
2018 let mut full_path = file.full_path(cx);
2019 if !include_filename {
2020 if !full_path.pop() {
2021 return None;
2022 }
2023 }
2024 Some(full_path.to_string_lossy().into_owned().into())
2025 } else {
2026 let mut path = file.path().strip_prefix(prefix).ok()?;
2027 if !include_filename {
2028 path = path.parent()?;
2029 }
2030 Some(path.display(file.path_style(cx)))
2031 }
2032}
2033
2034/// Restores serialized buffer contents by overwriting the buffer with saved text.
2035/// This is somewhat wasteful since we load the whole buffer from disk then overwrite it,
2036/// but keeps implementation simple as we don't need to persist all metadata from loading
2037/// (git diff base, etc.).
2038fn restore_serialized_buffer_contents(
2039 buffer: &mut Buffer,
2040 contents: String,
2041 mtime: Option<MTime>,
2042 cx: &mut Context<Buffer>,
2043) {
2044 // If we did restore an mtime, store it on the buffer so that
2045 // the next edit will mark the buffer as dirty/conflicted.
2046 if mtime.is_some() {
2047 buffer.did_reload(buffer.version(), buffer.line_ending(), mtime, cx);
2048 }
2049 buffer.set_text(contents, cx);
2050 if let Some(entry) = buffer.peek_undo_stack() {
2051 buffer.forget_transaction(entry.transaction_id());
2052 }
2053}
2054
2055#[cfg(test)]
2056mod tests {
2057 use crate::editor_tests::init_test;
2058 use fs::Fs;
2059 use workspace::MultiWorkspace;
2060
2061 use super::*;
2062 use fs::MTime;
2063 use gpui::{App, VisualTestContext};
2064 use language::TestFile;
2065 use project::FakeFs;
2066 use std::path::{Path, PathBuf};
2067 use util::{path, rel_path::RelPath};
2068
2069 #[gpui::test]
2070 fn test_path_for_file(cx: &mut App) {
2071 let file: Arc<dyn language::File> = Arc::new(TestFile {
2072 path: RelPath::empty().into(),
2073 root_name: String::new(),
2074 local_root: None,
2075 });
2076 assert_eq!(path_for_file(&file, 0, false, cx), None);
2077 }
2078
2079 async fn deserialize_editor(
2080 item_id: ItemId,
2081 workspace_id: WorkspaceId,
2082 workspace: Entity<Workspace>,
2083 project: Entity<Project>,
2084 cx: &mut VisualTestContext,
2085 ) -> Entity<Editor> {
2086 workspace
2087 .update_in(cx, |workspace, window, cx| {
2088 let pane = workspace.active_pane();
2089 pane.update(cx, |_, cx| {
2090 Editor::deserialize(
2091 project.clone(),
2092 workspace.weak_handle(),
2093 workspace_id,
2094 item_id,
2095 window,
2096 cx,
2097 )
2098 })
2099 })
2100 .await
2101 .unwrap()
2102 }
2103
2104 #[gpui::test]
2105 async fn test_deserialize(cx: &mut gpui::TestAppContext) {
2106 init_test(cx, |_| {});
2107
2108 let fs = FakeFs::new(cx.executor());
2109 fs.insert_file(path!("/file.rs"), Default::default()).await;
2110
2111 // Test case 1: Deserialize with path and contents
2112 {
2113 let project = Project::test(fs.clone(), [path!("/file.rs").as_ref()], cx).await;
2114 let (multi_workspace, cx) = cx.add_window_view(|window, cx| {
2115 MultiWorkspace::test_new(project.clone(), window, cx)
2116 });
2117 let workspace = multi_workspace.read_with(cx, |mw, _| mw.workspace().clone());
2118 let workspace_id = workspace::WORKSPACE_DB.next_id().await.unwrap();
2119 let item_id = 1234 as ItemId;
2120 let mtime = fs
2121 .metadata(Path::new(path!("/file.rs")))
2122 .await
2123 .unwrap()
2124 .unwrap()
2125 .mtime;
2126
2127 let serialized_editor = SerializedEditor {
2128 abs_path: Some(PathBuf::from(path!("/file.rs"))),
2129 contents: Some("fn main() {}".to_string()),
2130 language: Some("Rust".to_string()),
2131 mtime: Some(mtime),
2132 };
2133
2134 DB.save_serialized_editor(item_id, workspace_id, serialized_editor.clone())
2135 .await
2136 .unwrap();
2137
2138 let deserialized =
2139 deserialize_editor(item_id, workspace_id, workspace, project, cx).await;
2140
2141 deserialized.update(cx, |editor, cx| {
2142 assert_eq!(editor.text(cx), "fn main() {}");
2143 assert!(editor.is_dirty(cx));
2144 assert!(!editor.has_conflict(cx));
2145 let buffer = editor.buffer().read(cx).as_singleton().unwrap().read(cx);
2146 assert!(buffer.file().is_some());
2147 });
2148 }
2149
2150 // Test case 2: Deserialize with only path
2151 {
2152 let project = Project::test(fs.clone(), [path!("/file.rs").as_ref()], cx).await;
2153 let (multi_workspace, cx) = cx.add_window_view(|window, cx| {
2154 MultiWorkspace::test_new(project.clone(), window, cx)
2155 });
2156 let workspace = multi_workspace.read_with(cx, |mw, _| mw.workspace().clone());
2157
2158 let workspace_id = workspace::WORKSPACE_DB.next_id().await.unwrap();
2159
2160 let item_id = 5678 as ItemId;
2161 let serialized_editor = SerializedEditor {
2162 abs_path: Some(PathBuf::from(path!("/file.rs"))),
2163 contents: None,
2164 language: None,
2165 mtime: None,
2166 };
2167
2168 DB.save_serialized_editor(item_id, workspace_id, serialized_editor)
2169 .await
2170 .unwrap();
2171
2172 let deserialized =
2173 deserialize_editor(item_id, workspace_id, workspace, project, cx).await;
2174
2175 deserialized.update(cx, |editor, cx| {
2176 assert_eq!(editor.text(cx), ""); // The file should be empty as per our initial setup
2177 assert!(!editor.is_dirty(cx));
2178 assert!(!editor.has_conflict(cx));
2179
2180 let buffer = editor.buffer().read(cx).as_singleton().unwrap().read(cx);
2181 assert!(buffer.file().is_some());
2182 });
2183 }
2184
2185 // Test case 3: Deserialize with no path (untitled buffer, with content and language)
2186 {
2187 let project = Project::test(fs.clone(), [path!("/file.rs").as_ref()], cx).await;
2188 // Add Rust to the language, so that we can restore the language of the buffer
2189 project.read_with(cx, |project, _| {
2190 project.languages().add(languages::rust_lang())
2191 });
2192
2193 let (multi_workspace, cx) = cx.add_window_view(|window, cx| {
2194 MultiWorkspace::test_new(project.clone(), window, cx)
2195 });
2196 let workspace = multi_workspace.read_with(cx, |mw, _| mw.workspace().clone());
2197
2198 let workspace_id = workspace::WORKSPACE_DB.next_id().await.unwrap();
2199
2200 let item_id = 9012 as ItemId;
2201 let serialized_editor = SerializedEditor {
2202 abs_path: None,
2203 contents: Some("hello".to_string()),
2204 language: Some("Rust".to_string()),
2205 mtime: None,
2206 };
2207
2208 DB.save_serialized_editor(item_id, workspace_id, serialized_editor)
2209 .await
2210 .unwrap();
2211
2212 let deserialized =
2213 deserialize_editor(item_id, workspace_id, workspace, project, cx).await;
2214
2215 deserialized.update(cx, |editor, cx| {
2216 assert_eq!(editor.text(cx), "hello");
2217 assert!(editor.is_dirty(cx)); // The editor should be dirty for an untitled buffer
2218
2219 let buffer = editor.buffer().read(cx).as_singleton().unwrap().read(cx);
2220 assert_eq!(
2221 buffer.language().map(|lang| lang.name()),
2222 Some("Rust".into())
2223 ); // Language should be set to Rust
2224 assert!(buffer.file().is_none()); // The buffer should not have an associated file
2225 });
2226 }
2227
2228 // Test case 4: Deserialize with path, content, and old mtime
2229 {
2230 let project = Project::test(fs.clone(), [path!("/file.rs").as_ref()], cx).await;
2231 let (multi_workspace, cx) = cx.add_window_view(|window, cx| {
2232 MultiWorkspace::test_new(project.clone(), window, cx)
2233 });
2234 let workspace = multi_workspace.read_with(cx, |mw, _| mw.workspace().clone());
2235
2236 let workspace_id = workspace::WORKSPACE_DB.next_id().await.unwrap();
2237
2238 let item_id = 9345 as ItemId;
2239 let old_mtime = MTime::from_seconds_and_nanos(0, 50);
2240 let serialized_editor = SerializedEditor {
2241 abs_path: Some(PathBuf::from(path!("/file.rs"))),
2242 contents: Some("fn main() {}".to_string()),
2243 language: Some("Rust".to_string()),
2244 mtime: Some(old_mtime),
2245 };
2246
2247 DB.save_serialized_editor(item_id, workspace_id, serialized_editor)
2248 .await
2249 .unwrap();
2250
2251 let deserialized =
2252 deserialize_editor(item_id, workspace_id, workspace, project, cx).await;
2253
2254 deserialized.update(cx, |editor, cx| {
2255 assert_eq!(editor.text(cx), "fn main() {}");
2256 assert!(editor.has_conflict(cx)); // The editor should have a conflict
2257 });
2258 }
2259
2260 // Test case 5: Deserialize with no path, no content, no language, and no old mtime (new, empty, unsaved buffer)
2261 {
2262 let project = Project::test(fs.clone(), [path!("/file.rs").as_ref()], cx).await;
2263 let (multi_workspace, cx) = cx.add_window_view(|window, cx| {
2264 MultiWorkspace::test_new(project.clone(), window, cx)
2265 });
2266 let workspace = multi_workspace.read_with(cx, |mw, _| mw.workspace().clone());
2267
2268 let workspace_id = workspace::WORKSPACE_DB.next_id().await.unwrap();
2269
2270 let item_id = 10000 as ItemId;
2271 let serialized_editor = SerializedEditor {
2272 abs_path: None,
2273 contents: None,
2274 language: None,
2275 mtime: None,
2276 };
2277
2278 DB.save_serialized_editor(item_id, workspace_id, serialized_editor)
2279 .await
2280 .unwrap();
2281
2282 let deserialized =
2283 deserialize_editor(item_id, workspace_id, workspace, project, cx).await;
2284
2285 deserialized.update(cx, |editor, cx| {
2286 assert_eq!(editor.text(cx), "");
2287 assert!(!editor.is_dirty(cx));
2288 assert!(!editor.has_conflict(cx));
2289
2290 let buffer = editor.buffer().read(cx).as_singleton().unwrap().read(cx);
2291 assert!(buffer.file().is_none());
2292 });
2293 }
2294
2295 // Test case 6: Deserialize with path and contents in an empty workspace (no worktree)
2296 // This tests the hot-exit scenario where a file is opened in an empty workspace
2297 // and has unsaved changes that should be restored.
2298 {
2299 let fs = FakeFs::new(cx.executor());
2300 fs.insert_file(path!("/standalone.rs"), "original content".into())
2301 .await;
2302
2303 // Create an empty project with no worktrees
2304 let project = Project::test(fs.clone(), [], cx).await;
2305 let (multi_workspace, cx) = cx.add_window_view(|window, cx| {
2306 MultiWorkspace::test_new(project.clone(), window, cx)
2307 });
2308 let workspace = multi_workspace.read_with(cx, |mw, _| mw.workspace().clone());
2309
2310 let workspace_id = workspace::WORKSPACE_DB.next_id().await.unwrap();
2311 let item_id = 11000 as ItemId;
2312
2313 let mtime = fs
2314 .metadata(Path::new(path!("/standalone.rs")))
2315 .await
2316 .unwrap()
2317 .unwrap()
2318 .mtime;
2319
2320 // Simulate serialized state: file with unsaved changes
2321 let serialized_editor = SerializedEditor {
2322 abs_path: Some(PathBuf::from(path!("/standalone.rs"))),
2323 contents: Some("modified content".to_string()),
2324 language: Some("Rust".to_string()),
2325 mtime: Some(mtime),
2326 };
2327
2328 DB.save_serialized_editor(item_id, workspace_id, serialized_editor)
2329 .await
2330 .unwrap();
2331
2332 let deserialized =
2333 deserialize_editor(item_id, workspace_id, workspace, project, cx).await;
2334
2335 deserialized.update(cx, |editor, cx| {
2336 // The editor should have the serialized contents, not the disk contents
2337 assert_eq!(editor.text(cx), "modified content");
2338 assert!(editor.is_dirty(cx));
2339 assert!(!editor.has_conflict(cx));
2340
2341 let buffer = editor.buffer().read(cx).as_singleton().unwrap().read(cx);
2342 assert!(buffer.file().is_some());
2343 });
2344 }
2345 }
2346}