1use crate::{
2 display_map::ToDisplayPoint, link_go_to_definition::hide_link_definition,
3 movement::surrounding_word, persistence::DB, scroll::ScrollAnchor, Anchor, Autoscroll, Editor,
4 Event, ExcerptId, ExcerptRange, MultiBuffer, MultiBufferSnapshot, NavigationData, ToPoint as _,
5};
6use anyhow::{anyhow, Context, Result};
7use collections::HashSet;
8use futures::future::try_join_all;
9use gpui::{
10 point, AnyElement, AppContext, AsyncAppContext, Entity, EntityId, FocusHandle, Model, Pixels,
11 SharedString, Subscription, Task, View, ViewContext, VisualContext, WeakView,
12};
13use language::{
14 proto::serialize_anchor as serialize_text_anchor, Bias, Buffer, OffsetRangeExt, Point,
15 SelectionGoal,
16};
17use project::{search::SearchQuery, FormatTrigger, Item as _, Project, ProjectPath};
18use rpc::proto::{self, update_view, PeerId};
19use smallvec::SmallVec;
20use std::{
21 borrow::Cow,
22 cmp::{self, Ordering},
23 iter,
24 ops::Range,
25 path::{Path, PathBuf},
26 sync::Arc,
27};
28use text::Selection;
29use theme::ThemeVariant;
30use util::{paths::PathExt, ResultExt, TryFutureExt};
31use workspace::item::{BreadcrumbText, FollowableItemHandle};
32use workspace::{
33 item::{FollowableItem, Item, ItemEvent, ItemHandle, ProjectItem},
34 searchable::{Direction, SearchEvent, SearchableItem, SearchableItemHandle},
35 ItemId, ItemNavHistory, Pane, ToolbarItemLocation, ViewId, Workspace, WorkspaceId,
36};
37
38pub const MAX_TAB_TITLE_LEN: usize = 24;
39
40impl FollowableItem for Editor {
41 fn remote_id(&self) -> Option<ViewId> {
42 self.remote_id
43 }
44
45 fn from_state_proto(
46 pane: View<workspace::Pane>,
47 workspace: View<Workspace>,
48 remote_id: ViewId,
49 state: &mut Option<proto::view::Variant>,
50 cx: &mut AppContext,
51 ) -> Option<Task<Result<View<Self>>>> {
52 todo!()
53 }
54 // let project = workspace.read(cx).project().to_owned();
55 // let Some(proto::view::Variant::Editor(_)) = state else {
56 // return None;
57 // };
58 // let Some(proto::view::Variant::Editor(state)) = state.take() else {
59 // unreachable!()
60 // };
61
62 // let client = project.read(cx).client();
63 // let replica_id = project.read(cx).replica_id();
64 // let buffer_ids = state
65 // .excerpts
66 // .iter()
67 // .map(|excerpt| excerpt.buffer_id)
68 // .collect::<HashSet<_>>();
69 // let buffers = project.update(cx, |project, cx| {
70 // buffer_ids
71 // .iter()
72 // .map(|id| project.open_buffer_by_id(*id, cx))
73 // .collect::<Vec<_>>()
74 // });
75
76 // let pane = pane.downgrade();
77 // Some(cx.spawn(|mut cx| async move {
78 // let mut buffers = futures::future::try_join_all(buffers).await?;
79 // let editor = pane.read_with(&cx, |pane, cx| {
80 // let mut editors = pane.items_of_type::<Self>();
81 // editors.find(|editor| {
82 // let ids_match = editor.remote_id(&client, cx) == Some(remote_id);
83 // let singleton_buffer_matches = state.singleton
84 // && buffers.first()
85 // == editor.read(cx).buffer.read(cx).as_singleton().as_ref();
86 // ids_match || singleton_buffer_matches
87 // })
88 // })?;
89
90 // let editor = if let Some(editor) = editor {
91 // editor
92 // } else {
93 // pane.update(&mut cx, |_, cx| {
94 // let multibuffer = cx.add_model(|cx| {
95 // let mut multibuffer;
96 // if state.singleton && buffers.len() == 1 {
97 // multibuffer = MultiBuffer::singleton(buffers.pop().unwrap(), cx)
98 // } else {
99 // multibuffer = MultiBuffer::new(replica_id);
100 // let mut excerpts = state.excerpts.into_iter().peekable();
101 // while let Some(excerpt) = excerpts.peek() {
102 // let buffer_id = excerpt.buffer_id;
103 // let buffer_excerpts = iter::from_fn(|| {
104 // let excerpt = excerpts.peek()?;
105 // (excerpt.buffer_id == buffer_id)
106 // .then(|| excerpts.next().unwrap())
107 // });
108 // let buffer =
109 // buffers.iter().find(|b| b.read(cx).remote_id() == buffer_id);
110 // if let Some(buffer) = buffer {
111 // multibuffer.push_excerpts(
112 // buffer.clone(),
113 // buffer_excerpts.filter_map(deserialize_excerpt_range),
114 // cx,
115 // );
116 // }
117 // }
118 // };
119
120 // if let Some(title) = &state.title {
121 // multibuffer = multibuffer.with_title(title.clone())
122 // }
123
124 // multibuffer
125 // });
126
127 // cx.add_view(|cx| {
128 // let mut editor =
129 // Editor::for_multibuffer(multibuffer, Some(project.clone()), cx);
130 // editor.remote_id = Some(remote_id);
131 // editor
132 // })
133 // })?
134 // };
135
136 // update_editor_from_message(
137 // editor.downgrade(),
138 // project,
139 // proto::update_view::Editor {
140 // selections: state.selections,
141 // pending_selection: state.pending_selection,
142 // scroll_top_anchor: state.scroll_top_anchor,
143 // scroll_x: state.scroll_x,
144 // scroll_y: state.scroll_y,
145 // ..Default::default()
146 // },
147 // &mut cx,
148 // )
149 // .await?;
150
151 // Ok(editor)
152 // }))
153 // }
154
155 fn set_leader_peer_id(&mut self, leader_peer_id: Option<PeerId>, cx: &mut ViewContext<Self>) {
156 self.leader_peer_id = leader_peer_id;
157 if self.leader_peer_id.is_some() {
158 self.buffer.update(cx, |buffer, cx| {
159 buffer.remove_active_selections(cx);
160 });
161 } else {
162 self.buffer.update(cx, |buffer, cx| {
163 if self.focused {
164 buffer.set_active_selections(
165 &self.selections.disjoint_anchors(),
166 self.selections.line_mode,
167 self.cursor_shape,
168 cx,
169 );
170 }
171 });
172 }
173 cx.notify();
174 }
175
176 fn to_state_proto(&self, cx: &AppContext) -> Option<proto::view::Variant> {
177 let buffer = self.buffer.read(cx);
178 let scroll_anchor = self.scroll_manager.anchor();
179 let excerpts = buffer
180 .read(cx)
181 .excerpts()
182 .map(|(id, buffer, range)| proto::Excerpt {
183 id: id.to_proto(),
184 buffer_id: buffer.remote_id(),
185 context_start: Some(serialize_text_anchor(&range.context.start)),
186 context_end: Some(serialize_text_anchor(&range.context.end)),
187 primary_start: range
188 .primary
189 .as_ref()
190 .map(|range| serialize_text_anchor(&range.start)),
191 primary_end: range
192 .primary
193 .as_ref()
194 .map(|range| serialize_text_anchor(&range.end)),
195 })
196 .collect();
197
198 Some(proto::view::Variant::Editor(proto::view::Editor {
199 singleton: buffer.is_singleton(),
200 title: (!buffer.is_singleton()).then(|| buffer.title(cx).into()),
201 excerpts,
202 scroll_top_anchor: Some(serialize_anchor(&scroll_anchor.anchor)),
203 scroll_x: scroll_anchor.offset.x,
204 scroll_y: scroll_anchor.offset.y,
205 selections: self
206 .selections
207 .disjoint_anchors()
208 .iter()
209 .map(serialize_selection)
210 .collect(),
211 pending_selection: self
212 .selections
213 .pending_anchor()
214 .as_ref()
215 .map(serialize_selection),
216 }))
217 }
218
219 fn add_event_to_update_proto(
220 &self,
221 event: &Self::Event,
222 update: &mut Option<proto::update_view::Variant>,
223 cx: &AppContext,
224 ) -> bool {
225 let update =
226 update.get_or_insert_with(|| proto::update_view::Variant::Editor(Default::default()));
227
228 match update {
229 proto::update_view::Variant::Editor(update) => match event {
230 Event::ExcerptsAdded {
231 buffer,
232 predecessor,
233 excerpts,
234 } => {
235 let buffer_id = buffer.read(cx).remote_id();
236 let mut excerpts = excerpts.iter();
237 if let Some((id, range)) = excerpts.next() {
238 update.inserted_excerpts.push(proto::ExcerptInsertion {
239 previous_excerpt_id: Some(predecessor.to_proto()),
240 excerpt: serialize_excerpt(buffer_id, id, range),
241 });
242 update.inserted_excerpts.extend(excerpts.map(|(id, range)| {
243 proto::ExcerptInsertion {
244 previous_excerpt_id: None,
245 excerpt: serialize_excerpt(buffer_id, id, range),
246 }
247 }))
248 }
249 true
250 }
251 Event::ExcerptsRemoved { ids } => {
252 update
253 .deleted_excerpts
254 .extend(ids.iter().map(ExcerptId::to_proto));
255 true
256 }
257 Event::ScrollPositionChanged { .. } => {
258 let scroll_anchor = self.scroll_manager.anchor();
259 update.scroll_top_anchor = Some(serialize_anchor(&scroll_anchor.anchor));
260 update.scroll_x = scroll_anchor.offset.x;
261 update.scroll_y = scroll_anchor.offset.y;
262 true
263 }
264 Event::SelectionsChanged { .. } => {
265 update.selections = self
266 .selections
267 .disjoint_anchors()
268 .iter()
269 .map(serialize_selection)
270 .collect();
271 update.pending_selection = self
272 .selections
273 .pending_anchor()
274 .as_ref()
275 .map(serialize_selection);
276 true
277 }
278 _ => false,
279 },
280 }
281 }
282
283 fn apply_update_proto(
284 &mut self,
285 project: &Model<Project>,
286 message: update_view::Variant,
287 cx: &mut ViewContext<Self>,
288 ) -> Task<Result<()>> {
289 let update_view::Variant::Editor(message) = message;
290 let project = project.clone();
291 cx.spawn(|this, mut cx| async move {
292 update_editor_from_message(this, project, message, &mut cx).await
293 })
294 }
295
296 fn should_unfollow_on_event(event: &Self::Event, _: &AppContext) -> bool {
297 match event {
298 Event::Edited => true,
299 Event::SelectionsChanged { local } => *local,
300 Event::ScrollPositionChanged { local, .. } => *local,
301 _ => false,
302 }
303 }
304
305 fn is_project_item(&self, _cx: &AppContext) -> bool {
306 true
307 }
308}
309
310async fn update_editor_from_message(
311 this: WeakView<Editor>,
312 project: Model<Project>,
313 message: proto::update_view::Editor,
314 cx: &mut AsyncAppContext,
315) -> Result<()> {
316 todo!()
317}
318// Previous implementation of the above
319// // Open all of the buffers of which excerpts were added to the editor.
320// let inserted_excerpt_buffer_ids = message
321// .inserted_excerpts
322// .iter()
323// .filter_map(|insertion| Some(insertion.excerpt.as_ref()?.buffer_id))
324// .collect::<HashSet<_>>();
325// let inserted_excerpt_buffers = project.update(cx, |project, cx| {
326// inserted_excerpt_buffer_ids
327// .into_iter()
328// .map(|id| project.open_buffer_by_id(id, cx))
329// .collect::<Vec<_>>()
330// })?;
331// let _inserted_excerpt_buffers = try_join_all(inserted_excerpt_buffers).await?;
332
333// // Update the editor's excerpts.
334// this.update(cx, |editor, cx| {
335// editor.buffer.update(cx, |multibuffer, cx| {
336// let mut removed_excerpt_ids = message
337// .deleted_excerpts
338// .into_iter()
339// .map(ExcerptId::from_proto)
340// .collect::<Vec<_>>();
341// removed_excerpt_ids.sort_by({
342// let multibuffer = multibuffer.read(cx);
343// move |a, b| a.cmp(&b, &multibuffer)
344// });
345
346// let mut insertions = message.inserted_excerpts.into_iter().peekable();
347// while let Some(insertion) = insertions.next() {
348// let Some(excerpt) = insertion.excerpt else {
349// continue;
350// };
351// let Some(previous_excerpt_id) = insertion.previous_excerpt_id else {
352// continue;
353// };
354// let buffer_id = excerpt.buffer_id;
355// let Some(buffer) = project.read(cx).buffer_for_id(buffer_id) else {
356// continue;
357// };
358
359// let adjacent_excerpts = iter::from_fn(|| {
360// let insertion = insertions.peek()?;
361// if insertion.previous_excerpt_id.is_none()
362// && insertion.excerpt.as_ref()?.buffer_id == buffer_id
363// {
364// insertions.next()?.excerpt
365// } else {
366// None
367// }
368// });
369
370// multibuffer.insert_excerpts_with_ids_after(
371// ExcerptId::from_proto(previous_excerpt_id),
372// buffer,
373// [excerpt]
374// .into_iter()
375// .chain(adjacent_excerpts)
376// .filter_map(|excerpt| {
377// Some((
378// ExcerptId::from_proto(excerpt.id),
379// deserialize_excerpt_range(excerpt)?,
380// ))
381// }),
382// cx,
383// );
384// }
385
386// multibuffer.remove_excerpts(removed_excerpt_ids, cx);
387// });
388// })?;
389
390// // Deserialize the editor state.
391// let (selections, pending_selection, scroll_top_anchor) = this.update(cx, |editor, cx| {
392// let buffer = editor.buffer.read(cx).read(cx);
393// let selections = message
394// .selections
395// .into_iter()
396// .filter_map(|selection| deserialize_selection(&buffer, selection))
397// .collect::<Vec<_>>();
398// let pending_selection = message
399// .pending_selection
400// .and_then(|selection| deserialize_selection(&buffer, selection));
401// let scroll_top_anchor = message
402// .scroll_top_anchor
403// .and_then(|anchor| deserialize_anchor(&buffer, anchor));
404// anyhow::Ok((selections, pending_selection, scroll_top_anchor))
405// })??;
406
407// // Wait until the buffer has received all of the operations referenced by
408// // the editor's new state.
409// this.update(cx, |editor, cx| {
410// editor.buffer.update(cx, |buffer, cx| {
411// buffer.wait_for_anchors(
412// selections
413// .iter()
414// .chain(pending_selection.as_ref())
415// .flat_map(|selection| [selection.start, selection.end])
416// .chain(scroll_top_anchor),
417// cx,
418// )
419// })
420// })?
421// .await?;
422
423// // Update the editor's state.
424// this.update(cx, |editor, cx| {
425// if !selections.is_empty() || pending_selection.is_some() {
426// editor.set_selections_from_remote(selections, pending_selection, cx);
427// editor.request_autoscroll_remotely(Autoscroll::newest(), cx);
428// } else if let Some(scroll_top_anchor) = scroll_top_anchor {
429// editor.set_scroll_anchor_remote(
430// ScrollAnchor {
431// anchor: scroll_top_anchor,
432// offset: point(message.scroll_x, message.scroll_y),
433// },
434// cx,
435// );
436// }
437// })?;
438// Ok(())
439// }
440
441fn serialize_excerpt(
442 buffer_id: u64,
443 id: &ExcerptId,
444 range: &ExcerptRange<language::Anchor>,
445) -> Option<proto::Excerpt> {
446 Some(proto::Excerpt {
447 id: id.to_proto(),
448 buffer_id,
449 context_start: Some(serialize_text_anchor(&range.context.start)),
450 context_end: Some(serialize_text_anchor(&range.context.end)),
451 primary_start: range
452 .primary
453 .as_ref()
454 .map(|r| serialize_text_anchor(&r.start)),
455 primary_end: range
456 .primary
457 .as_ref()
458 .map(|r| serialize_text_anchor(&r.end)),
459 })
460}
461
462fn serialize_selection(selection: &Selection<Anchor>) -> proto::Selection {
463 proto::Selection {
464 id: selection.id as u64,
465 start: Some(serialize_anchor(&selection.start)),
466 end: Some(serialize_anchor(&selection.end)),
467 reversed: selection.reversed,
468 }
469}
470
471fn serialize_anchor(anchor: &Anchor) -> proto::EditorAnchor {
472 proto::EditorAnchor {
473 excerpt_id: anchor.excerpt_id.to_proto(),
474 anchor: Some(serialize_text_anchor(&anchor.text_anchor)),
475 }
476}
477
478fn deserialize_excerpt_range(excerpt: proto::Excerpt) -> Option<ExcerptRange<language::Anchor>> {
479 let context = {
480 let start = language::proto::deserialize_anchor(excerpt.context_start?)?;
481 let end = language::proto::deserialize_anchor(excerpt.context_end?)?;
482 start..end
483 };
484 let primary = excerpt
485 .primary_start
486 .zip(excerpt.primary_end)
487 .and_then(|(start, end)| {
488 let start = language::proto::deserialize_anchor(start)?;
489 let end = language::proto::deserialize_anchor(end)?;
490 Some(start..end)
491 });
492 Some(ExcerptRange { context, primary })
493}
494
495fn deserialize_selection(
496 buffer: &MultiBufferSnapshot,
497 selection: proto::Selection,
498) -> Option<Selection<Anchor>> {
499 Some(Selection {
500 id: selection.id as usize,
501 start: deserialize_anchor(buffer, selection.start?)?,
502 end: deserialize_anchor(buffer, selection.end?)?,
503 reversed: selection.reversed,
504 goal: SelectionGoal::None,
505 })
506}
507
508fn deserialize_anchor(buffer: &MultiBufferSnapshot, anchor: proto::EditorAnchor) -> Option<Anchor> {
509 let excerpt_id = ExcerptId::from_proto(anchor.excerpt_id);
510 Some(Anchor {
511 excerpt_id,
512 text_anchor: language::proto::deserialize_anchor(anchor.anchor?)?,
513 buffer_id: buffer.buffer_id_for_excerpt(excerpt_id),
514 })
515}
516
517impl Item for Editor {
518 fn focus_handle(&self) -> FocusHandle {
519 self.focus_handle.clone()
520 }
521
522 fn navigate(&mut self, data: Box<dyn std::any::Any>, cx: &mut ViewContext<Self>) -> bool {
523 todo!();
524 // if let Ok(data) = data.downcast::<NavigationData>() {
525 // let newest_selection = self.selections.newest::<Point>(cx);
526 // let buffer = self.buffer.read(cx).read(cx);
527 // let offset = if buffer.can_resolve(&data.cursor_anchor) {
528 // data.cursor_anchor.to_point(&buffer)
529 // } else {
530 // buffer.clip_point(data.cursor_position, Bias::Left)
531 // };
532
533 // let mut scroll_anchor = data.scroll_anchor;
534 // if !buffer.can_resolve(&scroll_anchor.anchor) {
535 // scroll_anchor.anchor = buffer.anchor_before(
536 // buffer.clip_point(Point::new(data.scroll_top_row, 0), Bias::Left),
537 // );
538 // }
539
540 // drop(buffer);
541
542 // if newest_selection.head() == offset {
543 // false
544 // } else {
545 // let nav_history = self.nav_history.take();
546 // self.set_scroll_anchor(scroll_anchor, cx);
547 // self.change_selections(Some(Autoscroll::fit()), cx, |s| {
548 // s.select_ranges([offset..offset])
549 // });
550 // self.nav_history = nav_history;
551 // true
552 // }
553 // } else {
554 // false
555 // }
556 }
557
558 fn tab_tooltip_text(&self, cx: &AppContext) -> Option<SharedString> {
559 let file_path = self
560 .buffer()
561 .read(cx)
562 .as_singleton()?
563 .read(cx)
564 .file()
565 .and_then(|f| f.as_local())?
566 .abs_path(cx);
567
568 let file_path = file_path.compact().to_string_lossy().to_string();
569
570 Some(file_path.into())
571 }
572
573 fn tab_description<'a>(&self, detail: usize, cx: &'a AppContext) -> Option<SharedString> {
574 let path = path_for_buffer(&self.buffer, detail, true, cx)?;
575 Some(path.to_string_lossy().to_string().into())
576 }
577
578 fn tab_content<T: 'static>(&self, detail: Option<usize>, cx: &AppContext) -> AnyElement<T> {
579 todo!();
580
581 // Flex::row()
582 // .with_child(Label::new(self.title(cx).to_string(), style.label.clone()).into_any())
583 // .with_children(detail.and_then(|detail| {
584 // let path = path_for_buffer(&self.buffer, detail, false, cx)?;
585 // let description = path.to_string_lossy();
586 // Some(
587 // Label::new(
588 // util::truncate_and_trailoff(&description, MAX_TAB_TITLE_LEN),
589 // style.description.text.clone(),
590 // )
591 // .contained()
592 // .with_style(style.description.container)
593 // .aligned(),
594 // )
595 // }))
596 // .align_children_center()
597 // .into_any()
598 }
599
600 fn for_each_project_item(
601 &self,
602 cx: &AppContext,
603 f: &mut dyn FnMut(EntityId, &dyn project::Item),
604 ) {
605 self.buffer
606 .read(cx)
607 .for_each_buffer(|buffer| f(buffer.entity_id(), buffer.read(cx)));
608 }
609
610 fn is_singleton(&self, cx: &AppContext) -> bool {
611 self.buffer.read(cx).is_singleton()
612 }
613
614 fn clone_on_split(
615 &self,
616 _workspace_id: WorkspaceId,
617 cx: &mut ViewContext<Self>,
618 ) -> Option<View<Editor>>
619 where
620 Self: Sized,
621 {
622 Some(cx.build_view(|cx| self.clone(cx)))
623 }
624
625 fn set_nav_history(&mut self, history: ItemNavHistory, _: &mut ViewContext<Self>) {
626 self.nav_history = Some(history);
627 }
628
629 fn deactivated(&mut self, cx: &mut ViewContext<Self>) {
630 let selection = self.selections.newest_anchor();
631 todo!()
632 // self.push_to_nav_history(selection.head(), None, cx);
633 }
634
635 fn workspace_deactivated(&mut self, cx: &mut ViewContext<Self>) {
636 hide_link_definition(self, cx);
637 self.link_go_to_definition_state.last_trigger_point = None;
638 }
639
640 fn is_dirty(&self, cx: &AppContext) -> bool {
641 self.buffer().read(cx).read(cx).is_dirty()
642 }
643
644 fn has_conflict(&self, cx: &AppContext) -> bool {
645 self.buffer().read(cx).read(cx).has_conflict()
646 }
647
648 fn can_save(&self, cx: &AppContext) -> bool {
649 let buffer = &self.buffer().read(cx);
650 if let Some(buffer) = buffer.as_singleton() {
651 buffer.read(cx).project_path(cx).is_some()
652 } else {
653 true
654 }
655 }
656
657 fn save(&mut self, project: Model<Project>, cx: &mut ViewContext<Self>) -> Task<Result<()>> {
658 self.report_editor_event("save", None, cx);
659 let format = self.perform_format(project.clone(), FormatTrigger::Save, cx);
660 let buffers = self.buffer().clone().read(cx).all_buffers();
661 cx.spawn(|_, mut cx| async move {
662 format.await?;
663
664 if buffers.len() == 1 {
665 project
666 .update(&mut cx, |project, cx| project.save_buffers(buffers, cx))?
667 .await?;
668 } else {
669 // For multi-buffers, only save those ones that contain changes. For clean buffers
670 // we simulate saving by calling `Buffer::did_save`, so that language servers or
671 // other downstream listeners of save events get notified.
672 let (dirty_buffers, clean_buffers) = buffers.into_iter().partition(|buffer| {
673 buffer
674 .update(&mut cx, |buffer, _| {
675 buffer.is_dirty() || buffer.has_conflict()
676 })
677 .unwrap_or(false)
678 });
679
680 project
681 .update(&mut cx, |project, cx| {
682 project.save_buffers(dirty_buffers, cx)
683 })?
684 .await?;
685 for buffer in clean_buffers {
686 buffer.update(&mut cx, |buffer, cx| {
687 let version = buffer.saved_version().clone();
688 let fingerprint = buffer.saved_version_fingerprint();
689 let mtime = buffer.saved_mtime();
690 buffer.did_save(version, fingerprint, mtime, cx);
691 });
692 }
693 }
694
695 Ok(())
696 })
697 }
698
699 fn save_as(
700 &mut self,
701 project: Model<Project>,
702 abs_path: PathBuf,
703 cx: &mut ViewContext<Self>,
704 ) -> Task<Result<()>> {
705 let buffer = self
706 .buffer()
707 .read(cx)
708 .as_singleton()
709 .expect("cannot call save_as on an excerpt list");
710
711 let file_extension = abs_path
712 .extension()
713 .map(|a| a.to_string_lossy().to_string());
714 self.report_editor_event("save", file_extension, cx);
715
716 project.update(cx, |project, cx| {
717 project.save_buffer_as(buffer, abs_path, cx)
718 })
719 }
720
721 fn reload(&mut self, project: Model<Project>, cx: &mut ViewContext<Self>) -> Task<Result<()>> {
722 let buffer = self.buffer().clone();
723 let buffers = self.buffer.read(cx).all_buffers();
724 let reload_buffers =
725 project.update(cx, |project, cx| project.reload_buffers(buffers, true, cx));
726 cx.spawn(|this, mut cx| async move {
727 let transaction = reload_buffers.log_err().await;
728 this.update(&mut cx, |editor, cx| {
729 editor.request_autoscroll(Autoscroll::fit(), cx)
730 })?;
731 buffer.update(&mut cx, |buffer, cx| {
732 if let Some(transaction) = transaction {
733 if !buffer.is_singleton() {
734 buffer.push_transaction(&transaction.0, cx);
735 }
736 }
737 });
738 Ok(())
739 })
740 }
741
742 fn to_item_events(event: &Self::Event) -> SmallVec<[ItemEvent; 2]> {
743 let mut result = SmallVec::new();
744 match event {
745 Event::Closed => result.push(ItemEvent::CloseItem),
746 Event::Saved | Event::TitleChanged => {
747 result.push(ItemEvent::UpdateTab);
748 result.push(ItemEvent::UpdateBreadcrumbs);
749 }
750 Event::Reparsed => {
751 result.push(ItemEvent::UpdateBreadcrumbs);
752 }
753 Event::SelectionsChanged { local } if *local => {
754 result.push(ItemEvent::UpdateBreadcrumbs);
755 }
756 Event::DirtyChanged => {
757 result.push(ItemEvent::UpdateTab);
758 }
759 Event::BufferEdited => {
760 result.push(ItemEvent::Edit);
761 result.push(ItemEvent::UpdateBreadcrumbs);
762 }
763 _ => {}
764 }
765 result
766 }
767
768 fn as_searchable(&self, handle: &View<Self>) -> Option<Box<dyn SearchableItemHandle>> {
769 Some(Box::new(handle.clone()))
770 }
771
772 fn pixel_position_of_cursor(&self, _: &AppContext) -> Option<gpui::Point<Pixels>> {
773 self.pixel_position_of_newest_cursor
774 }
775
776 fn breadcrumb_location(&self) -> ToolbarItemLocation {
777 ToolbarItemLocation::PrimaryLeft { flex: None }
778 }
779
780 fn breadcrumbs(&self, variant: &ThemeVariant, cx: &AppContext) -> Option<Vec<BreadcrumbText>> {
781 todo!();
782 // let cursor = self.selections.newest_anchor().head();
783 // let multibuffer = &self.buffer().read(cx);
784 // let (buffer_id, symbols) =
785 // multibuffer.symbols_containing(cursor, Some(&theme.editor.syntax), cx)?;
786 // let buffer = multibuffer.buffer(buffer_id)?;
787
788 // let buffer = buffer.read(cx);
789 // let filename = buffer
790 // .snapshot()
791 // .resolve_file_path(
792 // cx,
793 // self.project
794 // .as_ref()
795 // .map(|project| project.read(cx).visible_worktrees(cx).count() > 1)
796 // .unwrap_or_default(),
797 // )
798 // .map(|path| path.to_string_lossy().to_string())
799 // .unwrap_or_else(|| "untitled".to_string());
800
801 // let mut breadcrumbs = vec![BreadcrumbText {
802 // text: filename,
803 // highlights: None,
804 // }];
805 // breadcrumbs.extend(symbols.into_iter().map(|symbol| BreadcrumbText {
806 // text: symbol.text,
807 // highlights: Some(symbol.highlight_ranges),
808 // }));
809 // Some(breadcrumbs)
810 }
811
812 fn added_to_workspace(&mut self, workspace: &mut Workspace, cx: &mut ViewContext<Self>) {
813 let workspace_id = workspace.database_id();
814 let item_id = cx.view().entity_id().as_u64() as ItemId;
815 self.workspace = Some((workspace.weak_handle(), workspace.database_id()));
816
817 fn serialize(
818 buffer: Model<Buffer>,
819 workspace_id: WorkspaceId,
820 item_id: ItemId,
821 cx: &mut AppContext,
822 ) {
823 if let Some(file) = buffer.read(cx).file().and_then(|file| file.as_local()) {
824 let path = file.abs_path(cx);
825
826 cx.background_executor()
827 .spawn(async move {
828 DB.save_path(item_id, workspace_id, path.clone())
829 .await
830 .log_err()
831 })
832 .detach();
833 }
834 }
835
836 if let Some(buffer) = self.buffer().read(cx).as_singleton() {
837 serialize(buffer.clone(), workspace_id, item_id, cx);
838
839 cx.subscribe(&buffer, |this, buffer, event, cx| {
840 if let Some((_, workspace_id)) = this.workspace.as_ref() {
841 if let language::Event::FileHandleChanged = event {
842 serialize(
843 buffer,
844 *workspace_id,
845 cx.view().entity_id().as_u64() as ItemId,
846 cx,
847 );
848 }
849 }
850 })
851 .detach();
852 }
853 }
854
855 fn serialized_item_kind() -> Option<&'static str> {
856 Some("Editor")
857 }
858
859 fn deserialize(
860 project: Model<Project>,
861 _workspace: WeakView<Workspace>,
862 workspace_id: workspace::WorkspaceId,
863 item_id: ItemId,
864 cx: &mut ViewContext<Pane>,
865 ) -> Task<Result<View<Self>>> {
866 let project_item: Result<_> = project.update(cx, |project, cx| {
867 // Look up the path with this key associated, create a self with that path
868 let path = DB
869 .get_path(item_id, workspace_id)?
870 .context("No path stored for this editor")?;
871
872 let (worktree, path) = project
873 .find_local_worktree(&path, cx)
874 .with_context(|| format!("No worktree for path: {path:?}"))?;
875 let project_path = ProjectPath {
876 worktree_id: worktree.read(cx).id(),
877 path: path.into(),
878 };
879
880 Ok(project.open_path(project_path, cx))
881 });
882
883 project_item
884 .map(|project_item| {
885 cx.spawn(|pane, mut cx| async move {
886 let (_, project_item) = project_item.await?;
887 let buffer = project_item
888 .downcast::<Buffer>()
889 .map_err(|_| anyhow!("Project item at stored path was not a buffer"))?;
890 Ok(pane.update(&mut cx, |_, cx| {
891 cx.build_view(|cx| {
892 let mut editor = Editor::for_buffer(buffer, Some(project), cx);
893
894 editor.read_scroll_position_from_db(item_id, workspace_id, cx);
895 editor
896 })
897 })?)
898 })
899 })
900 .unwrap_or_else(|error| Task::ready(Err(error)))
901 }
902}
903
904impl ProjectItem for Editor {
905 type Item = Buffer;
906
907 fn for_project_item(
908 project: Model<Project>,
909 buffer: Model<Buffer>,
910 cx: &mut ViewContext<Self>,
911 ) -> Self {
912 Self::for_buffer(buffer, Some(project), cx)
913 }
914}
915
916pub(crate) enum BufferSearchHighlights {}
917impl SearchableItem for Editor {
918 type Match = Range<Anchor>;
919
920 fn to_search_event(
921 &mut self,
922 event: &Self::Event,
923 _: &mut ViewContext<Self>,
924 ) -> Option<SearchEvent> {
925 match event {
926 Event::BufferEdited => Some(SearchEvent::MatchesInvalidated),
927 Event::SelectionsChanged { .. } => {
928 if self.selections.disjoint_anchors().len() == 1 {
929 Some(SearchEvent::ActiveMatchChanged)
930 } else {
931 None
932 }
933 }
934 _ => None,
935 }
936 }
937
938 fn clear_matches(&mut self, cx: &mut ViewContext<Self>) {
939 todo!()
940 // self.clear_background_highlights::<BufferSearchHighlights>(cx);
941 }
942
943 fn update_matches(&mut self, matches: Vec<Range<Anchor>>, cx: &mut ViewContext<Self>) {
944 todo!()
945 // self.highlight_background::<BufferSearchHighlights>(
946 // matches,
947 // |theme| theme.search.match_background,
948 // cx,
949 // );
950 }
951
952 fn query_suggestion(&mut self, cx: &mut ViewContext<Self>) -> String {
953 let display_map = self.snapshot(cx).display_snapshot;
954 let selection = self.selections.newest::<usize>(cx);
955 if selection.start == selection.end {
956 let point = selection.start.to_display_point(&display_map);
957 let range = surrounding_word(&display_map, point);
958 let range = range.start.to_offset(&display_map, Bias::Left)
959 ..range.end.to_offset(&display_map, Bias::Right);
960 let text: String = display_map.buffer_snapshot.text_for_range(range).collect();
961 if text.trim().is_empty() {
962 String::new()
963 } else {
964 text
965 }
966 } else {
967 display_map
968 .buffer_snapshot
969 .text_for_range(selection.start..selection.end)
970 .collect()
971 }
972 }
973
974 fn activate_match(
975 &mut self,
976 index: usize,
977 matches: Vec<Range<Anchor>>,
978 cx: &mut ViewContext<Self>,
979 ) {
980 todo!()
981 // self.unfold_ranges([matches[index].clone()], false, true, cx);
982 // let range = self.range_for_match(&matches[index]);
983 // self.change_selections(Some(Autoscroll::fit()), cx, |s| {
984 // s.select_ranges([range]);
985 // })
986 }
987
988 fn select_matches(&mut self, matches: Vec<Self::Match>, cx: &mut ViewContext<Self>) {
989 todo!()
990 // self.unfold_ranges(matches.clone(), false, false, cx);
991 // let mut ranges = Vec::new();
992 // for m in &matches {
993 // ranges.push(self.range_for_match(&m))
994 // }
995 // self.change_selections(None, cx, |s| s.select_ranges(ranges));
996 }
997 fn replace(
998 &mut self,
999 identifier: &Self::Match,
1000 query: &SearchQuery,
1001 cx: &mut ViewContext<Self>,
1002 ) {
1003 let text = self.buffer.read(cx);
1004 let text = text.snapshot(cx);
1005 let text = text.text_for_range(identifier.clone()).collect::<Vec<_>>();
1006 let text: Cow<_> = if text.len() == 1 {
1007 text.first().cloned().unwrap().into()
1008 } else {
1009 let joined_chunks = text.join("");
1010 joined_chunks.into()
1011 };
1012
1013 if let Some(replacement) = query.replacement_for(&text) {
1014 self.transact(cx, |this, cx| {
1015 this.edit([(identifier.clone(), Arc::from(&*replacement))], cx);
1016 });
1017 }
1018 }
1019 fn match_index_for_direction(
1020 &mut self,
1021 matches: &Vec<Range<Anchor>>,
1022 current_index: usize,
1023 direction: Direction,
1024 count: usize,
1025 cx: &mut ViewContext<Self>,
1026 ) -> usize {
1027 let buffer = self.buffer().read(cx).snapshot(cx);
1028 let current_index_position = if self.selections.disjoint_anchors().len() == 1 {
1029 self.selections.newest_anchor().head()
1030 } else {
1031 matches[current_index].start
1032 };
1033
1034 let mut count = count % matches.len();
1035 if count == 0 {
1036 return current_index;
1037 }
1038 match direction {
1039 Direction::Next => {
1040 if matches[current_index]
1041 .start
1042 .cmp(¤t_index_position, &buffer)
1043 .is_gt()
1044 {
1045 count = count - 1
1046 }
1047
1048 (current_index + count) % matches.len()
1049 }
1050 Direction::Prev => {
1051 if matches[current_index]
1052 .end
1053 .cmp(¤t_index_position, &buffer)
1054 .is_lt()
1055 {
1056 count = count - 1;
1057 }
1058
1059 if current_index >= count {
1060 current_index - count
1061 } else {
1062 matches.len() - (count - current_index)
1063 }
1064 }
1065 }
1066 }
1067
1068 fn find_matches(
1069 &mut self,
1070 query: Arc<project::search::SearchQuery>,
1071 cx: &mut ViewContext<Self>,
1072 ) -> Task<Vec<Range<Anchor>>> {
1073 let buffer = self.buffer().read(cx).snapshot(cx);
1074 cx.background_executor().spawn(async move {
1075 let mut ranges = Vec::new();
1076 if let Some((_, _, excerpt_buffer)) = buffer.as_singleton() {
1077 ranges.extend(
1078 query
1079 .search(excerpt_buffer, None)
1080 .await
1081 .into_iter()
1082 .map(|range| {
1083 buffer.anchor_after(range.start)..buffer.anchor_before(range.end)
1084 }),
1085 );
1086 } else {
1087 for excerpt in buffer.excerpt_boundaries_in_range(0..buffer.len()) {
1088 let excerpt_range = excerpt.range.context.to_offset(&excerpt.buffer);
1089 ranges.extend(
1090 query
1091 .search(&excerpt.buffer, Some(excerpt_range.clone()))
1092 .await
1093 .into_iter()
1094 .map(|range| {
1095 let start = excerpt
1096 .buffer
1097 .anchor_after(excerpt_range.start + range.start);
1098 let end = excerpt
1099 .buffer
1100 .anchor_before(excerpt_range.start + range.end);
1101 buffer.anchor_in_excerpt(excerpt.id.clone(), start)
1102 ..buffer.anchor_in_excerpt(excerpt.id.clone(), end)
1103 }),
1104 );
1105 }
1106 }
1107 ranges
1108 })
1109 }
1110
1111 fn active_match_index(
1112 &mut self,
1113 matches: Vec<Range<Anchor>>,
1114 cx: &mut ViewContext<Self>,
1115 ) -> Option<usize> {
1116 active_match_index(
1117 &matches,
1118 &self.selections.newest_anchor().head(),
1119 &self.buffer().read(cx).snapshot(cx),
1120 )
1121 }
1122}
1123
1124pub fn active_match_index(
1125 ranges: &[Range<Anchor>],
1126 cursor: &Anchor,
1127 buffer: &MultiBufferSnapshot,
1128) -> Option<usize> {
1129 if ranges.is_empty() {
1130 None
1131 } else {
1132 match ranges.binary_search_by(|probe| {
1133 if probe.end.cmp(cursor, &*buffer).is_lt() {
1134 Ordering::Less
1135 } else if probe.start.cmp(cursor, &*buffer).is_gt() {
1136 Ordering::Greater
1137 } else {
1138 Ordering::Equal
1139 }
1140 }) {
1141 Ok(i) | Err(i) => Some(cmp::min(i, ranges.len() - 1)),
1142 }
1143 }
1144}
1145
1146pub struct CursorPosition {
1147 position: Option<Point>,
1148 selected_count: usize,
1149 _observe_active_editor: Option<Subscription>,
1150}
1151
1152// impl Default for CursorPosition {
1153// fn default() -> Self {
1154// Self::new()
1155// }
1156// }
1157
1158// impl CursorPosition {
1159// pub fn new() -> Self {
1160// Self {
1161// position: None,
1162// selected_count: 0,
1163// _observe_active_editor: None,
1164// }
1165// }
1166
1167// fn update_position(&mut self, editor: View<Editor>, cx: &mut ViewContext<Self>) {
1168// let editor = editor.read(cx);
1169// let buffer = editor.buffer().read(cx).snapshot(cx);
1170
1171// self.selected_count = 0;
1172// let mut last_selection: Option<Selection<usize>> = None;
1173// for selection in editor.selections.all::<usize>(cx) {
1174// self.selected_count += selection.end - selection.start;
1175// if last_selection
1176// .as_ref()
1177// .map_or(true, |last_selection| selection.id > last_selection.id)
1178// {
1179// last_selection = Some(selection);
1180// }
1181// }
1182// self.position = last_selection.map(|s| s.head().to_point(&buffer));
1183
1184// cx.notify();
1185// }
1186// }
1187
1188// impl Entity for CursorPosition {
1189// type Event = ();
1190// }
1191
1192// impl View for CursorPosition {
1193// fn ui_name() -> &'static str {
1194// "CursorPosition"
1195// }
1196
1197// fn render(&mut self, cx: &mut ViewContext<Self>) -> AnyElement<Self> {
1198// if let Some(position) = self.position {
1199// let theme = &theme::current(cx).workspace.status_bar;
1200// let mut text = format!(
1201// "{}{FILE_ROW_COLUMN_DELIMITER}{}",
1202// position.row + 1,
1203// position.column + 1
1204// );
1205// if self.selected_count > 0 {
1206// write!(text, " ({} selected)", self.selected_count).unwrap();
1207// }
1208// Label::new(text, theme.cursor_position.clone()).into_any()
1209// } else {
1210// Empty::new().into_any()
1211// }
1212// }
1213// }
1214
1215// impl StatusItemView for CursorPosition {
1216// fn set_active_pane_item(
1217// &mut self,
1218// active_pane_item: Option<&dyn ItemHandle>,
1219// cx: &mut ViewContext<Self>,
1220// ) {
1221// if let Some(editor) = active_pane_item.and_then(|item| item.act_as::<Editor>(cx)) {
1222// self._observe_active_editor = Some(cx.observe(&editor, Self::update_position));
1223// self.update_position(editor, cx);
1224// } else {
1225// self.position = None;
1226// self._observe_active_editor = None;
1227// }
1228
1229// cx.notify();
1230// }
1231// }
1232
1233fn path_for_buffer<'a>(
1234 buffer: &Model<MultiBuffer>,
1235 height: usize,
1236 include_filename: bool,
1237 cx: &'a AppContext,
1238) -> Option<Cow<'a, Path>> {
1239 let file = buffer.read(cx).as_singleton()?.read(cx).file()?;
1240 path_for_file(file.as_ref(), height, include_filename, cx)
1241}
1242
1243fn path_for_file<'a>(
1244 file: &'a dyn language::File,
1245 mut height: usize,
1246 include_filename: bool,
1247 cx: &'a AppContext,
1248) -> Option<Cow<'a, Path>> {
1249 // Ensure we always render at least the filename.
1250 height += 1;
1251
1252 let mut prefix = file.path().as_ref();
1253 while height > 0 {
1254 if let Some(parent) = prefix.parent() {
1255 prefix = parent;
1256 height -= 1;
1257 } else {
1258 break;
1259 }
1260 }
1261
1262 // Here we could have just always used `full_path`, but that is very
1263 // allocation-heavy and so we try to use a `Cow<Path>` if we haven't
1264 // traversed all the way up to the worktree's root.
1265 if height > 0 {
1266 let full_path = file.full_path(cx);
1267 if include_filename {
1268 Some(full_path.into())
1269 } else {
1270 Some(full_path.parent()?.to_path_buf().into())
1271 }
1272 } else {
1273 let mut path = file.path().strip_prefix(prefix).ok()?;
1274 if !include_filename {
1275 path = path.parent()?;
1276 }
1277 Some(path.into())
1278 }
1279}
1280
1281#[cfg(test)]
1282mod tests {
1283 use super::*;
1284 use gpui::AppContext;
1285 use std::{
1286 path::{Path, PathBuf},
1287 sync::Arc,
1288 time::SystemTime,
1289 };
1290
1291 #[gpui::test]
1292 fn test_path_for_file(cx: &mut AppContext) {
1293 let file = TestFile {
1294 path: Path::new("").into(),
1295 full_path: PathBuf::from(""),
1296 };
1297 assert_eq!(path_for_file(&file, 0, false, cx), None);
1298 }
1299
1300 struct TestFile {
1301 path: Arc<Path>,
1302 full_path: PathBuf,
1303 }
1304
1305 impl language::File for TestFile {
1306 fn path(&self) -> &Arc<Path> {
1307 &self.path
1308 }
1309
1310 fn full_path(&self, _: &gpui::AppContext) -> PathBuf {
1311 self.full_path.clone()
1312 }
1313
1314 fn as_local(&self) -> Option<&dyn language::LocalFile> {
1315 unimplemented!()
1316 }
1317
1318 fn mtime(&self) -> SystemTime {
1319 unimplemented!()
1320 }
1321
1322 fn file_name<'a>(&'a self, _: &'a gpui::AppContext) -> &'a std::ffi::OsStr {
1323 unimplemented!()
1324 }
1325
1326 fn worktree_id(&self) -> usize {
1327 0
1328 }
1329
1330 fn is_deleted(&self) -> bool {
1331 unimplemented!()
1332 }
1333
1334 fn as_any(&self) -> &dyn std::any::Any {
1335 unimplemented!()
1336 }
1337
1338 fn to_proto(&self) -> rpc::proto::File {
1339 unimplemented!()
1340 }
1341 }
1342}