1use crate::{
2 editor_settings::SeedQuerySetting, link_go_to_definition::hide_link_definition,
3 movement::surrounding_word, persistence::DB, scroll::ScrollAnchor, Anchor, Autoscroll, Editor,
4 EditorSettings, Event, ExcerptId, ExcerptRange, MultiBuffer, MultiBufferSnapshot,
5 NavigationData, ToPoint as _,
6};
7use anyhow::{anyhow, Context, Result};
8use collections::HashSet;
9use futures::future::try_join_all;
10use gpui::{
11 div, point, AnyElement, AppContext, AsyncAppContext, Entity, EntityId, EventEmitter,
12 FocusHandle, Model, ParentElement, Pixels, SharedString, Styled, Subscription, Task, View,
13 ViewContext, VisualContext, WeakView,
14};
15use language::{
16 proto::serialize_anchor as serialize_text_anchor, Bias, Buffer, CharKind, OffsetRangeExt,
17 Point, SelectionGoal,
18};
19use project::{search::SearchQuery, FormatTrigger, Item as _, Project, ProjectPath};
20use rpc::proto::{self, update_view, PeerId};
21use settings::Settings;
22use smallvec::SmallVec;
23use std::{
24 borrow::Cow,
25 cmp::{self, Ordering},
26 iter,
27 ops::Range,
28 path::{Path, PathBuf},
29 sync::Arc,
30};
31use text::Selection;
32use theme::{ActiveTheme, Theme};
33use ui::{Label, TextColor};
34use util::{paths::PathExt, ResultExt, TryFutureExt};
35use workspace::item::{BreadcrumbText, FollowEvent, FollowableEvents, FollowableItemHandle};
36use workspace::{
37 item::{FollowableItem, Item, ItemEvent, ItemHandle, ProjectItem},
38 searchable::{Direction, SearchEvent, SearchableItem, SearchableItemHandle},
39 ItemId, ItemNavHistory, Pane, ToolbarItemLocation, ViewId, Workspace, WorkspaceId,
40};
41
42pub const MAX_TAB_TITLE_LEN: usize = 24;
43
44impl FollowableEvents for Event {
45 fn to_follow_event(&self) -> Option<workspace::item::FollowEvent> {
46 match self {
47 Event::Edited => Some(FollowEvent::Unfollow),
48 Event::SelectionsChanged { local } | Event::ScrollPositionChanged { local, .. } => {
49 if *local {
50 Some(FollowEvent::Unfollow)
51 } else {
52 None
53 }
54 }
55 _ => None,
56 }
57 }
58}
59
60impl EventEmitter<ItemEvent> for Editor {}
61
62impl FollowableItem for Editor {
63 type FollowableEvent = Event;
64 fn remote_id(&self) -> Option<ViewId> {
65 self.remote_id
66 }
67
68 fn from_state_proto(
69 pane: View<workspace::Pane>,
70 workspace: View<Workspace>,
71 remote_id: ViewId,
72 state: &mut Option<proto::view::Variant>,
73 cx: &mut AppContext,
74 ) -> Option<Task<Result<View<Self>>>> {
75 todo!()
76 }
77 // let project = workspace.read(cx).project().to_owned();
78 // let Some(proto::view::Variant::Editor(_)) = state else {
79 // return None;
80 // };
81 // let Some(proto::view::Variant::Editor(state)) = state.take() else {
82 // unreachable!()
83 // };
84
85 // let client = project.read(cx).client();
86 // let replica_id = project.read(cx).replica_id();
87 // let buffer_ids = state
88 // .excerpts
89 // .iter()
90 // .map(|excerpt| excerpt.buffer_id)
91 // .collect::<HashSet<_>>();
92 // let buffers = project.update(cx, |project, cx| {
93 // buffer_ids
94 // .iter()
95 // .map(|id| project.open_buffer_by_id(*id, cx))
96 // .collect::<Vec<_>>()
97 // });
98
99 // let pane = pane.downgrade();
100 // Some(cx.spawn(|mut cx| async move {
101 // let mut buffers = futures::future::try_join_all(buffers).await?;
102 // let editor = pane.read_with(&cx, |pane, cx| {
103 // let mut editors = pane.items_of_type::<Self>();
104 // editors.find(|editor| {
105 // let ids_match = editor.remote_id(&client, cx) == Some(remote_id);
106 // let singleton_buffer_matches = state.singleton
107 // && buffers.first()
108 // == editor.read(cx).buffer.read(cx).as_singleton().as_ref();
109 // ids_match || singleton_buffer_matches
110 // })
111 // })?;
112
113 // let editor = if let Some(editor) = editor {
114 // editor
115 // } else {
116 // pane.update(&mut cx, |_, cx| {
117 // let multibuffer = cx.add_model(|cx| {
118 // let mut multibuffer;
119 // if state.singleton && buffers.len() == 1 {
120 // multibuffer = MultiBuffer::singleton(buffers.pop().unwrap(), cx)
121 // } else {
122 // multibuffer = MultiBuffer::new(replica_id);
123 // let mut excerpts = state.excerpts.into_iter().peekable();
124 // while let Some(excerpt) = excerpts.peek() {
125 // let buffer_id = excerpt.buffer_id;
126 // let buffer_excerpts = iter::from_fn(|| {
127 // let excerpt = excerpts.peek()?;
128 // (excerpt.buffer_id == buffer_id)
129 // .then(|| excerpts.next().unwrap())
130 // });
131 // let buffer =
132 // buffers.iter().find(|b| b.read(cx).remote_id() == buffer_id);
133 // if let Some(buffer) = buffer {
134 // multibuffer.push_excerpts(
135 // buffer.clone(),
136 // buffer_excerpts.filter_map(deserialize_excerpt_range),
137 // cx,
138 // );
139 // }
140 // }
141 // };
142
143 // if let Some(title) = &state.title {
144 // multibuffer = multibuffer.with_title(title.clone())
145 // }
146
147 // multibuffer
148 // });
149
150 // cx.add_view(|cx| {
151 // let mut editor =
152 // Editor::for_multibuffer(multibuffer, Some(project.clone()), cx);
153 // editor.remote_id = Some(remote_id);
154 // editor
155 // })
156 // })?
157 // };
158
159 // update_editor_from_message(
160 // editor.downgrade(),
161 // project,
162 // proto::update_view::Editor {
163 // selections: state.selections,
164 // pending_selection: state.pending_selection,
165 // scroll_top_anchor: state.scroll_top_anchor,
166 // scroll_x: state.scroll_x,
167 // scroll_y: state.scroll_y,
168 // ..Default::default()
169 // },
170 // &mut cx,
171 // )
172 // .await?;
173
174 // Ok(editor)
175 // }))
176 // }
177
178 fn set_leader_peer_id(&mut self, leader_peer_id: Option<PeerId>, cx: &mut ViewContext<Self>) {
179 self.leader_peer_id = leader_peer_id;
180 if self.leader_peer_id.is_some() {
181 self.buffer.update(cx, |buffer, cx| {
182 buffer.remove_active_selections(cx);
183 });
184 } else if self.focus_handle.is_focused(cx) {
185 self.buffer.update(cx, |buffer, cx| {
186 buffer.set_active_selections(
187 &self.selections.disjoint_anchors(),
188 self.selections.line_mode,
189 self.cursor_shape,
190 cx,
191 );
192 });
193 }
194 cx.notify();
195 }
196
197 fn to_state_proto(&self, cx: &AppContext) -> Option<proto::view::Variant> {
198 let buffer = self.buffer.read(cx);
199 let scroll_anchor = self.scroll_manager.anchor();
200 let excerpts = buffer
201 .read(cx)
202 .excerpts()
203 .map(|(id, buffer, range)| proto::Excerpt {
204 id: id.to_proto(),
205 buffer_id: buffer.remote_id(),
206 context_start: Some(serialize_text_anchor(&range.context.start)),
207 context_end: Some(serialize_text_anchor(&range.context.end)),
208 primary_start: range
209 .primary
210 .as_ref()
211 .map(|range| serialize_text_anchor(&range.start)),
212 primary_end: range
213 .primary
214 .as_ref()
215 .map(|range| serialize_text_anchor(&range.end)),
216 })
217 .collect();
218
219 Some(proto::view::Variant::Editor(proto::view::Editor {
220 singleton: buffer.is_singleton(),
221 title: (!buffer.is_singleton()).then(|| buffer.title(cx).into()),
222 excerpts,
223 scroll_top_anchor: Some(serialize_anchor(&scroll_anchor.anchor)),
224 scroll_x: scroll_anchor.offset.x,
225 scroll_y: scroll_anchor.offset.y,
226 selections: self
227 .selections
228 .disjoint_anchors()
229 .iter()
230 .map(serialize_selection)
231 .collect(),
232 pending_selection: self
233 .selections
234 .pending_anchor()
235 .as_ref()
236 .map(serialize_selection),
237 }))
238 }
239
240 fn add_event_to_update_proto(
241 &self,
242 event: &Self::FollowableEvent,
243 update: &mut Option<proto::update_view::Variant>,
244 cx: &AppContext,
245 ) -> bool {
246 let update =
247 update.get_or_insert_with(|| proto::update_view::Variant::Editor(Default::default()));
248
249 match update {
250 proto::update_view::Variant::Editor(update) => match event {
251 Event::ExcerptsAdded {
252 buffer,
253 predecessor,
254 excerpts,
255 } => {
256 let buffer_id = buffer.read(cx).remote_id();
257 let mut excerpts = excerpts.iter();
258 if let Some((id, range)) = excerpts.next() {
259 update.inserted_excerpts.push(proto::ExcerptInsertion {
260 previous_excerpt_id: Some(predecessor.to_proto()),
261 excerpt: serialize_excerpt(buffer_id, id, range),
262 });
263 update.inserted_excerpts.extend(excerpts.map(|(id, range)| {
264 proto::ExcerptInsertion {
265 previous_excerpt_id: None,
266 excerpt: serialize_excerpt(buffer_id, id, range),
267 }
268 }))
269 }
270 true
271 }
272 Event::ExcerptsRemoved { ids } => {
273 update
274 .deleted_excerpts
275 .extend(ids.iter().map(ExcerptId::to_proto));
276 true
277 }
278 Event::ScrollPositionChanged { .. } => {
279 let scroll_anchor = self.scroll_manager.anchor();
280 update.scroll_top_anchor = Some(serialize_anchor(&scroll_anchor.anchor));
281 update.scroll_x = scroll_anchor.offset.x;
282 update.scroll_y = scroll_anchor.offset.y;
283 true
284 }
285 Event::SelectionsChanged { .. } => {
286 update.selections = self
287 .selections
288 .disjoint_anchors()
289 .iter()
290 .map(serialize_selection)
291 .collect();
292 update.pending_selection = self
293 .selections
294 .pending_anchor()
295 .as_ref()
296 .map(serialize_selection);
297 true
298 }
299 _ => false,
300 },
301 }
302 }
303
304 fn apply_update_proto(
305 &mut self,
306 project: &Model<Project>,
307 message: update_view::Variant,
308 cx: &mut ViewContext<Self>,
309 ) -> Task<Result<()>> {
310 let update_view::Variant::Editor(message) = message;
311 let project = project.clone();
312 cx.spawn(|this, mut cx| async move {
313 update_editor_from_message(this, project, message, &mut cx).await
314 })
315 }
316
317 fn is_project_item(&self, _cx: &AppContext) -> bool {
318 true
319 }
320}
321
322async fn update_editor_from_message(
323 this: WeakView<Editor>,
324 project: Model<Project>,
325 message: proto::update_view::Editor,
326 cx: &mut AsyncAppContext,
327) -> Result<()> {
328 todo!()
329}
330// Previous implementation of the above
331// // Open all of the buffers of which excerpts were added to the editor.
332// let inserted_excerpt_buffer_ids = message
333// .inserted_excerpts
334// .iter()
335// .filter_map(|insertion| Some(insertion.excerpt.as_ref()?.buffer_id))
336// .collect::<HashSet<_>>();
337// let inserted_excerpt_buffers = project.update(cx, |project, cx| {
338// inserted_excerpt_buffer_ids
339// .into_iter()
340// .map(|id| project.open_buffer_by_id(id, cx))
341// .collect::<Vec<_>>()
342// })?;
343// let _inserted_excerpt_buffers = try_join_all(inserted_excerpt_buffers).await?;
344
345// // Update the editor's excerpts.
346// this.update(cx, |editor, cx| {
347// editor.buffer.update(cx, |multibuffer, cx| {
348// let mut removed_excerpt_ids = message
349// .deleted_excerpts
350// .into_iter()
351// .map(ExcerptId::from_proto)
352// .collect::<Vec<_>>();
353// removed_excerpt_ids.sort_by({
354// let multibuffer = multibuffer.read(cx);
355// move |a, b| a.cmp(&b, &multibuffer)
356// });
357
358// let mut insertions = message.inserted_excerpts.into_iter().peekable();
359// while let Some(insertion) = insertions.next() {
360// let Some(excerpt) = insertion.excerpt else {
361// continue;
362// };
363// let Some(previous_excerpt_id) = insertion.previous_excerpt_id else {
364// continue;
365// };
366// let buffer_id = excerpt.buffer_id;
367// let Some(buffer) = project.read(cx).buffer_for_id(buffer_id) else {
368// continue;
369// };
370
371// let adjacent_excerpts = iter::from_fn(|| {
372// let insertion = insertions.peek()?;
373// if insertion.previous_excerpt_id.is_none()
374// && insertion.excerpt.as_ref()?.buffer_id == buffer_id
375// {
376// insertions.next()?.excerpt
377// } else {
378// None
379// }
380// });
381
382// multibuffer.insert_excerpts_with_ids_after(
383// ExcerptId::from_proto(previous_excerpt_id),
384// buffer,
385// [excerpt]
386// .into_iter()
387// .chain(adjacent_excerpts)
388// .filter_map(|excerpt| {
389// Some((
390// ExcerptId::from_proto(excerpt.id),
391// deserialize_excerpt_range(excerpt)?,
392// ))
393// }),
394// cx,
395// );
396// }
397
398// multibuffer.remove_excerpts(removed_excerpt_ids, cx);
399// });
400// })?;
401
402// // Deserialize the editor state.
403// let (selections, pending_selection, scroll_top_anchor) = this.update(cx, |editor, cx| {
404// let buffer = editor.buffer.read(cx).read(cx);
405// let selections = message
406// .selections
407// .into_iter()
408// .filter_map(|selection| deserialize_selection(&buffer, selection))
409// .collect::<Vec<_>>();
410// let pending_selection = message
411// .pending_selection
412// .and_then(|selection| deserialize_selection(&buffer, selection));
413// let scroll_top_anchor = message
414// .scroll_top_anchor
415// .and_then(|anchor| deserialize_anchor(&buffer, anchor));
416// anyhow::Ok((selections, pending_selection, scroll_top_anchor))
417// })??;
418
419// // Wait until the buffer has received all of the operations referenced by
420// // the editor's new state.
421// this.update(cx, |editor, cx| {
422// editor.buffer.update(cx, |buffer, cx| {
423// buffer.wait_for_anchors(
424// selections
425// .iter()
426// .chain(pending_selection.as_ref())
427// .flat_map(|selection| [selection.start, selection.end])
428// .chain(scroll_top_anchor),
429// cx,
430// )
431// })
432// })?
433// .await?;
434
435// // Update the editor's state.
436// this.update(cx, |editor, cx| {
437// if !selections.is_empty() || pending_selection.is_some() {
438// editor.set_selections_from_remote(selections, pending_selection, cx);
439// editor.request_autoscroll_remotely(Autoscroll::newest(), cx);
440// } else if let Some(scroll_top_anchor) = scroll_top_anchor {
441// editor.set_scroll_anchor_remote(
442// ScrollAnchor {
443// anchor: scroll_top_anchor,
444// offset: point(message.scroll_x, message.scroll_y),
445// },
446// cx,
447// );
448// }
449// })?;
450// Ok(())
451// }
452
453fn serialize_excerpt(
454 buffer_id: u64,
455 id: &ExcerptId,
456 range: &ExcerptRange<language::Anchor>,
457) -> Option<proto::Excerpt> {
458 Some(proto::Excerpt {
459 id: id.to_proto(),
460 buffer_id,
461 context_start: Some(serialize_text_anchor(&range.context.start)),
462 context_end: Some(serialize_text_anchor(&range.context.end)),
463 primary_start: range
464 .primary
465 .as_ref()
466 .map(|r| serialize_text_anchor(&r.start)),
467 primary_end: range
468 .primary
469 .as_ref()
470 .map(|r| serialize_text_anchor(&r.end)),
471 })
472}
473
474fn serialize_selection(selection: &Selection<Anchor>) -> proto::Selection {
475 proto::Selection {
476 id: selection.id as u64,
477 start: Some(serialize_anchor(&selection.start)),
478 end: Some(serialize_anchor(&selection.end)),
479 reversed: selection.reversed,
480 }
481}
482
483fn serialize_anchor(anchor: &Anchor) -> proto::EditorAnchor {
484 proto::EditorAnchor {
485 excerpt_id: anchor.excerpt_id.to_proto(),
486 anchor: Some(serialize_text_anchor(&anchor.text_anchor)),
487 }
488}
489
490fn deserialize_excerpt_range(excerpt: proto::Excerpt) -> Option<ExcerptRange<language::Anchor>> {
491 let context = {
492 let start = language::proto::deserialize_anchor(excerpt.context_start?)?;
493 let end = language::proto::deserialize_anchor(excerpt.context_end?)?;
494 start..end
495 };
496 let primary = excerpt
497 .primary_start
498 .zip(excerpt.primary_end)
499 .and_then(|(start, end)| {
500 let start = language::proto::deserialize_anchor(start)?;
501 let end = language::proto::deserialize_anchor(end)?;
502 Some(start..end)
503 });
504 Some(ExcerptRange { context, primary })
505}
506
507fn deserialize_selection(
508 buffer: &MultiBufferSnapshot,
509 selection: proto::Selection,
510) -> Option<Selection<Anchor>> {
511 Some(Selection {
512 id: selection.id as usize,
513 start: deserialize_anchor(buffer, selection.start?)?,
514 end: deserialize_anchor(buffer, selection.end?)?,
515 reversed: selection.reversed,
516 goal: SelectionGoal::None,
517 })
518}
519
520fn deserialize_anchor(buffer: &MultiBufferSnapshot, anchor: proto::EditorAnchor) -> Option<Anchor> {
521 let excerpt_id = ExcerptId::from_proto(anchor.excerpt_id);
522 Some(Anchor {
523 excerpt_id,
524 text_anchor: language::proto::deserialize_anchor(anchor.anchor?)?,
525 buffer_id: buffer.buffer_id_for_excerpt(excerpt_id),
526 })
527}
528
529impl Item for Editor {
530 fn focus_handle(&self) -> FocusHandle {
531 self.focus_handle.clone()
532 }
533
534 fn navigate(&mut self, data: Box<dyn std::any::Any>, cx: &mut ViewContext<Self>) -> bool {
535 todo!();
536 // if let Ok(data) = data.downcast::<NavigationData>() {
537 // let newest_selection = self.selections.newest::<Point>(cx);
538 // let buffer = self.buffer.read(cx).read(cx);
539 // let offset = if buffer.can_resolve(&data.cursor_anchor) {
540 // data.cursor_anchor.to_point(&buffer)
541 // } else {
542 // buffer.clip_point(data.cursor_position, Bias::Left)
543 // };
544
545 // let mut scroll_anchor = data.scroll_anchor;
546 // if !buffer.can_resolve(&scroll_anchor.anchor) {
547 // scroll_anchor.anchor = buffer.anchor_before(
548 // buffer.clip_point(Point::new(data.scroll_top_row, 0), Bias::Left),
549 // );
550 // }
551
552 // drop(buffer);
553
554 // if newest_selection.head() == offset {
555 // false
556 // } else {
557 // let nav_history = self.nav_history.take();
558 // self.set_scroll_anchor(scroll_anchor, cx);
559 // self.change_selections(Some(Autoscroll::fit()), cx, |s| {
560 // s.select_ranges([offset..offset])
561 // });
562 // self.nav_history = nav_history;
563 // true
564 // }
565 // } else {
566 // false
567 // }
568 }
569
570 fn tab_tooltip_text(&self, cx: &AppContext) -> Option<SharedString> {
571 let file_path = self
572 .buffer()
573 .read(cx)
574 .as_singleton()?
575 .read(cx)
576 .file()
577 .and_then(|f| f.as_local())?
578 .abs_path(cx);
579
580 let file_path = file_path.compact().to_string_lossy().to_string();
581
582 Some(file_path.into())
583 }
584
585 fn tab_description<'a>(&self, detail: usize, cx: &'a AppContext) -> Option<SharedString> {
586 let path = path_for_buffer(&self.buffer, detail, true, cx)?;
587 Some(path.to_string_lossy().to_string().into())
588 }
589
590 fn tab_content<T: 'static>(&self, detail: Option<usize>, cx: &AppContext) -> AnyElement<T> {
591 let theme = cx.theme();
592
593 AnyElement::new(
594 div()
595 .flex()
596 .flex_row()
597 .items_center()
598 .gap_2()
599 .child(Label::new(self.title(cx).to_string()))
600 .children(detail.and_then(|detail| {
601 let path = path_for_buffer(&self.buffer, detail, false, cx)?;
602 let description = path.to_string_lossy();
603
604 Some(
605 div().child(
606 Label::new(util::truncate_and_trailoff(
607 &description,
608 MAX_TAB_TITLE_LEN,
609 ))
610 .color(TextColor::Muted),
611 ),
612 )
613 })),
614 )
615 }
616
617 fn for_each_project_item(
618 &self,
619 cx: &AppContext,
620 f: &mut dyn FnMut(EntityId, &dyn project::Item),
621 ) {
622 self.buffer
623 .read(cx)
624 .for_each_buffer(|buffer| f(buffer.entity_id(), buffer.read(cx)));
625 }
626
627 fn is_singleton(&self, cx: &AppContext) -> bool {
628 self.buffer.read(cx).is_singleton()
629 }
630
631 fn clone_on_split(
632 &self,
633 _workspace_id: WorkspaceId,
634 cx: &mut ViewContext<Self>,
635 ) -> Option<View<Editor>>
636 where
637 Self: Sized,
638 {
639 Some(cx.build_view(|cx| self.clone(cx)))
640 }
641
642 fn set_nav_history(&mut self, history: ItemNavHistory, _: &mut ViewContext<Self>) {
643 self.nav_history = Some(history);
644 }
645
646 fn deactivated(&mut self, cx: &mut ViewContext<Self>) {
647 let selection = self.selections.newest_anchor();
648 self.push_to_nav_history(selection.head(), None, cx);
649 }
650
651 fn workspace_deactivated(&mut self, cx: &mut ViewContext<Self>) {
652 hide_link_definition(self, cx);
653 self.link_go_to_definition_state.last_trigger_point = None;
654 }
655
656 fn is_dirty(&self, cx: &AppContext) -> bool {
657 self.buffer().read(cx).read(cx).is_dirty()
658 }
659
660 fn has_conflict(&self, cx: &AppContext) -> bool {
661 self.buffer().read(cx).read(cx).has_conflict()
662 }
663
664 fn can_save(&self, cx: &AppContext) -> bool {
665 let buffer = &self.buffer().read(cx);
666 if let Some(buffer) = buffer.as_singleton() {
667 buffer.read(cx).project_path(cx).is_some()
668 } else {
669 true
670 }
671 }
672
673 fn save(&mut self, project: Model<Project>, cx: &mut ViewContext<Self>) -> Task<Result<()>> {
674 self.report_editor_event("save", None, cx);
675 let format = self.perform_format(project.clone(), FormatTrigger::Save, cx);
676 let buffers = self.buffer().clone().read(cx).all_buffers();
677 cx.spawn(|_, mut cx| async move {
678 format.await?;
679
680 if buffers.len() == 1 {
681 project
682 .update(&mut cx, |project, cx| project.save_buffers(buffers, cx))?
683 .await?;
684 } else {
685 // For multi-buffers, only save those ones that contain changes. For clean buffers
686 // we simulate saving by calling `Buffer::did_save`, so that language servers or
687 // other downstream listeners of save events get notified.
688 let (dirty_buffers, clean_buffers) = buffers.into_iter().partition(|buffer| {
689 buffer
690 .update(&mut cx, |buffer, _| {
691 buffer.is_dirty() || buffer.has_conflict()
692 })
693 .unwrap_or(false)
694 });
695
696 project
697 .update(&mut cx, |project, cx| {
698 project.save_buffers(dirty_buffers, cx)
699 })?
700 .await?;
701 for buffer in clean_buffers {
702 buffer.update(&mut cx, |buffer, cx| {
703 let version = buffer.saved_version().clone();
704 let fingerprint = buffer.saved_version_fingerprint();
705 let mtime = buffer.saved_mtime();
706 buffer.did_save(version, fingerprint, mtime, cx);
707 });
708 }
709 }
710
711 Ok(())
712 })
713 }
714
715 fn save_as(
716 &mut self,
717 project: Model<Project>,
718 abs_path: PathBuf,
719 cx: &mut ViewContext<Self>,
720 ) -> Task<Result<()>> {
721 let buffer = self
722 .buffer()
723 .read(cx)
724 .as_singleton()
725 .expect("cannot call save_as on an excerpt list");
726
727 let file_extension = abs_path
728 .extension()
729 .map(|a| a.to_string_lossy().to_string());
730 self.report_editor_event("save", file_extension, cx);
731
732 project.update(cx, |project, cx| {
733 project.save_buffer_as(buffer, abs_path, cx)
734 })
735 }
736
737 fn reload(&mut self, project: Model<Project>, cx: &mut ViewContext<Self>) -> Task<Result<()>> {
738 let buffer = self.buffer().clone();
739 let buffers = self.buffer.read(cx).all_buffers();
740 let reload_buffers =
741 project.update(cx, |project, cx| project.reload_buffers(buffers, true, cx));
742 cx.spawn(|this, mut cx| async move {
743 let transaction = reload_buffers.log_err().await;
744 this.update(&mut cx, |editor, cx| {
745 editor.request_autoscroll(Autoscroll::fit(), cx)
746 })?;
747 buffer.update(&mut cx, |buffer, cx| {
748 if let Some(transaction) = transaction {
749 if !buffer.is_singleton() {
750 buffer.push_transaction(&transaction.0, cx);
751 }
752 }
753 });
754 Ok(())
755 })
756 }
757
758 fn as_searchable(&self, handle: &View<Self>) -> Option<Box<dyn SearchableItemHandle>> {
759 Some(Box::new(handle.clone()))
760 }
761
762 fn pixel_position_of_cursor(&self, _: &AppContext) -> Option<gpui::Point<Pixels>> {
763 self.pixel_position_of_newest_cursor
764 }
765
766 fn breadcrumb_location(&self) -> ToolbarItemLocation {
767 ToolbarItemLocation::PrimaryLeft { flex: None }
768 }
769
770 fn breadcrumbs(&self, variant: &Theme, cx: &AppContext) -> Option<Vec<BreadcrumbText>> {
771 todo!();
772 // let cursor = self.selections.newest_anchor().head();
773 // let multibuffer = &self.buffer().read(cx);
774 // let (buffer_id, symbols) =
775 // multibuffer.symbols_containing(cursor, Some(&theme.editor.syntax), cx)?;
776 // let buffer = multibuffer.buffer(buffer_id)?;
777
778 // let buffer = buffer.read(cx);
779 // let filename = buffer
780 // .snapshot()
781 // .resolve_file_path(
782 // cx,
783 // self.project
784 // .as_ref()
785 // .map(|project| project.read(cx).visible_worktrees(cx).count() > 1)
786 // .unwrap_or_default(),
787 // )
788 // .map(|path| path.to_string_lossy().to_string())
789 // .unwrap_or_else(|| "untitled".to_string());
790
791 // let mut breadcrumbs = vec![BreadcrumbText {
792 // text: filename,
793 // highlights: None,
794 // }];
795 // breadcrumbs.extend(symbols.into_iter().map(|symbol| BreadcrumbText {
796 // text: symbol.text,
797 // highlights: Some(symbol.highlight_ranges),
798 // }));
799 // Some(breadcrumbs)
800 }
801
802 fn added_to_workspace(&mut self, workspace: &mut Workspace, cx: &mut ViewContext<Self>) {
803 let workspace_id = workspace.database_id();
804 let item_id = cx.view().entity_id().as_u64() as ItemId;
805 self.workspace = Some((workspace.weak_handle(), workspace.database_id()));
806
807 fn serialize(
808 buffer: Model<Buffer>,
809 workspace_id: WorkspaceId,
810 item_id: ItemId,
811 cx: &mut AppContext,
812 ) {
813 if let Some(file) = buffer.read(cx).file().and_then(|file| file.as_local()) {
814 let path = file.abs_path(cx);
815
816 cx.background_executor()
817 .spawn(async move {
818 DB.save_path(item_id, workspace_id, path.clone())
819 .await
820 .log_err()
821 })
822 .detach();
823 }
824 }
825
826 if let Some(buffer) = self.buffer().read(cx).as_singleton() {
827 serialize(buffer.clone(), workspace_id, item_id, cx);
828
829 cx.subscribe(&buffer, |this, buffer, event, cx| {
830 if let Some((_, workspace_id)) = this.workspace.as_ref() {
831 if let language::Event::FileHandleChanged = event {
832 serialize(
833 buffer,
834 *workspace_id,
835 cx.view().entity_id().as_u64() as ItemId,
836 cx,
837 );
838 }
839 }
840 })
841 .detach();
842 }
843 }
844
845 fn serialized_item_kind() -> Option<&'static str> {
846 Some("Editor")
847 }
848
849 fn deserialize(
850 project: Model<Project>,
851 _workspace: WeakView<Workspace>,
852 workspace_id: workspace::WorkspaceId,
853 item_id: ItemId,
854 cx: &mut ViewContext<Pane>,
855 ) -> Task<Result<View<Self>>> {
856 let project_item: Result<_> = project.update(cx, |project, cx| {
857 // Look up the path with this key associated, create a self with that path
858 let path = DB
859 .get_path(item_id, workspace_id)?
860 .context("No path stored for this editor")?;
861
862 let (worktree, path) = project
863 .find_local_worktree(&path, cx)
864 .with_context(|| format!("No worktree for path: {path:?}"))?;
865 let project_path = ProjectPath {
866 worktree_id: worktree.read(cx).id(),
867 path: path.into(),
868 };
869
870 Ok(project.open_path(project_path, cx))
871 });
872
873 project_item
874 .map(|project_item| {
875 cx.spawn(|pane, mut cx| async move {
876 let (_, project_item) = project_item.await?;
877 let buffer = project_item
878 .downcast::<Buffer>()
879 .map_err(|_| anyhow!("Project item at stored path was not a buffer"))?;
880 Ok(pane.update(&mut cx, |_, cx| {
881 cx.build_view(|cx| {
882 let mut editor = Editor::for_buffer(buffer, Some(project), cx);
883
884 editor.read_scroll_position_from_db(item_id, workspace_id, cx);
885 editor
886 })
887 })?)
888 })
889 })
890 .unwrap_or_else(|error| Task::ready(Err(error)))
891 }
892}
893
894impl ProjectItem for Editor {
895 type Item = Buffer;
896
897 fn for_project_item(
898 project: Model<Project>,
899 buffer: Model<Buffer>,
900 cx: &mut ViewContext<Self>,
901 ) -> Self {
902 Self::for_buffer(buffer, Some(project), cx)
903 }
904}
905
906impl EventEmitter<SearchEvent> for Editor {}
907
908pub(crate) enum BufferSearchHighlights {}
909impl SearchableItem for Editor {
910 type Match = Range<Anchor>;
911
912 fn clear_matches(&mut self, cx: &mut ViewContext<Self>) {
913 todo!()
914 // self.clear_background_highlights::<BufferSearchHighlights>(cx);
915 }
916
917 fn update_matches(&mut self, matches: Vec<Range<Anchor>>, cx: &mut ViewContext<Self>) {
918 todo!()
919 // self.highlight_background::<BufferSearchHighlights>(
920 // matches,
921 // |theme| theme.search.match_background,
922 // cx,
923 // );
924 }
925
926 fn query_suggestion(&mut self, cx: &mut ViewContext<Self>) -> String {
927 let setting = EditorSettings::get_global(cx).seed_search_query_from_cursor;
928 let snapshot = &self.snapshot(cx).buffer_snapshot;
929 let selection = self.selections.newest::<usize>(cx);
930
931 match setting {
932 SeedQuerySetting::Never => String::new(),
933 SeedQuerySetting::Selection | SeedQuerySetting::Always if !selection.is_empty() => {
934 snapshot
935 .text_for_range(selection.start..selection.end)
936 .collect()
937 }
938 SeedQuerySetting::Selection => String::new(),
939 SeedQuerySetting::Always => {
940 let (range, kind) = snapshot.surrounding_word(selection.start);
941 if kind == Some(CharKind::Word) {
942 let text: String = snapshot.text_for_range(range).collect();
943 if !text.trim().is_empty() {
944 return text;
945 }
946 }
947 String::new()
948 }
949 }
950 }
951
952 fn activate_match(
953 &mut self,
954 index: usize,
955 matches: Vec<Range<Anchor>>,
956 cx: &mut ViewContext<Self>,
957 ) {
958 todo!()
959 // self.unfold_ranges([matches[index].clone()], false, true, cx);
960 // let range = self.range_for_match(&matches[index]);
961 // self.change_selections(Some(Autoscroll::fit()), cx, |s| {
962 // s.select_ranges([range]);
963 // })
964 }
965
966 fn select_matches(&mut self, matches: Vec<Self::Match>, cx: &mut ViewContext<Self>) {
967 todo!()
968 // self.unfold_ranges(matches.clone(), false, false, cx);
969 // let mut ranges = Vec::new();
970 // for m in &matches {
971 // ranges.push(self.range_for_match(&m))
972 // }
973 // self.change_selections(None, cx, |s| s.select_ranges(ranges));
974 }
975 fn replace(
976 &mut self,
977 identifier: &Self::Match,
978 query: &SearchQuery,
979 cx: &mut ViewContext<Self>,
980 ) {
981 let text = self.buffer.read(cx);
982 let text = text.snapshot(cx);
983 let text = text.text_for_range(identifier.clone()).collect::<Vec<_>>();
984 let text: Cow<_> = if text.len() == 1 {
985 text.first().cloned().unwrap().into()
986 } else {
987 let joined_chunks = text.join("");
988 joined_chunks.into()
989 };
990
991 if let Some(replacement) = query.replacement_for(&text) {
992 self.transact(cx, |this, cx| {
993 this.edit([(identifier.clone(), Arc::from(&*replacement))], cx);
994 });
995 }
996 }
997 fn match_index_for_direction(
998 &mut self,
999 matches: &Vec<Range<Anchor>>,
1000 current_index: usize,
1001 direction: Direction,
1002 count: usize,
1003 cx: &mut ViewContext<Self>,
1004 ) -> usize {
1005 let buffer = self.buffer().read(cx).snapshot(cx);
1006 let current_index_position = if self.selections.disjoint_anchors().len() == 1 {
1007 self.selections.newest_anchor().head()
1008 } else {
1009 matches[current_index].start
1010 };
1011
1012 let mut count = count % matches.len();
1013 if count == 0 {
1014 return current_index;
1015 }
1016 match direction {
1017 Direction::Next => {
1018 if matches[current_index]
1019 .start
1020 .cmp(¤t_index_position, &buffer)
1021 .is_gt()
1022 {
1023 count = count - 1
1024 }
1025
1026 (current_index + count) % matches.len()
1027 }
1028 Direction::Prev => {
1029 if matches[current_index]
1030 .end
1031 .cmp(¤t_index_position, &buffer)
1032 .is_lt()
1033 {
1034 count = count - 1;
1035 }
1036
1037 if current_index >= count {
1038 current_index - count
1039 } else {
1040 matches.len() - (count - current_index)
1041 }
1042 }
1043 }
1044 }
1045
1046 fn find_matches(
1047 &mut self,
1048 query: Arc<project::search::SearchQuery>,
1049 cx: &mut ViewContext<Self>,
1050 ) -> Task<Vec<Range<Anchor>>> {
1051 let buffer = self.buffer().read(cx).snapshot(cx);
1052 cx.background_executor().spawn(async move {
1053 let mut ranges = Vec::new();
1054 if let Some((_, _, excerpt_buffer)) = buffer.as_singleton() {
1055 ranges.extend(
1056 query
1057 .search(excerpt_buffer, None)
1058 .await
1059 .into_iter()
1060 .map(|range| {
1061 buffer.anchor_after(range.start)..buffer.anchor_before(range.end)
1062 }),
1063 );
1064 } else {
1065 for excerpt in buffer.excerpt_boundaries_in_range(0..buffer.len()) {
1066 let excerpt_range = excerpt.range.context.to_offset(&excerpt.buffer);
1067 ranges.extend(
1068 query
1069 .search(&excerpt.buffer, Some(excerpt_range.clone()))
1070 .await
1071 .into_iter()
1072 .map(|range| {
1073 let start = excerpt
1074 .buffer
1075 .anchor_after(excerpt_range.start + range.start);
1076 let end = excerpt
1077 .buffer
1078 .anchor_before(excerpt_range.start + range.end);
1079 buffer.anchor_in_excerpt(excerpt.id.clone(), start)
1080 ..buffer.anchor_in_excerpt(excerpt.id.clone(), end)
1081 }),
1082 );
1083 }
1084 }
1085 ranges
1086 })
1087 }
1088
1089 fn active_match_index(
1090 &mut self,
1091 matches: Vec<Range<Anchor>>,
1092 cx: &mut ViewContext<Self>,
1093 ) -> Option<usize> {
1094 active_match_index(
1095 &matches,
1096 &self.selections.newest_anchor().head(),
1097 &self.buffer().read(cx).snapshot(cx),
1098 )
1099 }
1100}
1101
1102pub fn active_match_index(
1103 ranges: &[Range<Anchor>],
1104 cursor: &Anchor,
1105 buffer: &MultiBufferSnapshot,
1106) -> Option<usize> {
1107 if ranges.is_empty() {
1108 None
1109 } else {
1110 match ranges.binary_search_by(|probe| {
1111 if probe.end.cmp(cursor, &*buffer).is_lt() {
1112 Ordering::Less
1113 } else if probe.start.cmp(cursor, &*buffer).is_gt() {
1114 Ordering::Greater
1115 } else {
1116 Ordering::Equal
1117 }
1118 }) {
1119 Ok(i) | Err(i) => Some(cmp::min(i, ranges.len() - 1)),
1120 }
1121 }
1122}
1123
1124pub struct CursorPosition {
1125 position: Option<Point>,
1126 selected_count: usize,
1127 _observe_active_editor: Option<Subscription>,
1128}
1129
1130// impl Default for CursorPosition {
1131// fn default() -> Self {
1132// Self::new()
1133// }
1134// }
1135
1136// impl CursorPosition {
1137// pub fn new() -> Self {
1138// Self {
1139// position: None,
1140// selected_count: 0,
1141// _observe_active_editor: None,
1142// }
1143// }
1144
1145// fn update_position(&mut self, editor: View<Editor>, cx: &mut ViewContext<Self>) {
1146// let editor = editor.read(cx);
1147// let buffer = editor.buffer().read(cx).snapshot(cx);
1148
1149// self.selected_count = 0;
1150// let mut last_selection: Option<Selection<usize>> = None;
1151// for selection in editor.selections.all::<usize>(cx) {
1152// self.selected_count += selection.end - selection.start;
1153// if last_selection
1154// .as_ref()
1155// .map_or(true, |last_selection| selection.id > last_selection.id)
1156// {
1157// last_selection = Some(selection);
1158// }
1159// }
1160// self.position = last_selection.map(|s| s.head().to_point(&buffer));
1161
1162// cx.notify();
1163// }
1164// }
1165
1166// impl Entity for CursorPosition {
1167// type Event = ();
1168// }
1169
1170// impl View for CursorPosition {
1171// fn ui_name() -> &'static str {
1172// "CursorPosition"
1173// }
1174
1175// fn render(&mut self, cx: &mut ViewContext<Self>) -> AnyElement<Self> {
1176// if let Some(position) = self.position {
1177// let theme = &theme::current(cx).workspace.status_bar;
1178// let mut text = format!(
1179// "{}{FILE_ROW_COLUMN_DELIMITER}{}",
1180// position.row + 1,
1181// position.column + 1
1182// );
1183// if self.selected_count > 0 {
1184// write!(text, " ({} selected)", self.selected_count).unwrap();
1185// }
1186// Label::new(text, theme.cursor_position.clone()).into_any()
1187// } else {
1188// Empty::new().into_any()
1189// }
1190// }
1191// }
1192
1193// impl StatusItemView for CursorPosition {
1194// fn set_active_pane_item(
1195// &mut self,
1196// active_pane_item: Option<&dyn ItemHandle>,
1197// cx: &mut ViewContext<Self>,
1198// ) {
1199// if let Some(editor) = active_pane_item.and_then(|item| item.act_as::<Editor>(cx)) {
1200// self._observe_active_editor = Some(cx.observe(&editor, Self::update_position));
1201// self.update_position(editor, cx);
1202// } else {
1203// self.position = None;
1204// self._observe_active_editor = None;
1205// }
1206
1207// cx.notify();
1208// }
1209// }
1210
1211fn path_for_buffer<'a>(
1212 buffer: &Model<MultiBuffer>,
1213 height: usize,
1214 include_filename: bool,
1215 cx: &'a AppContext,
1216) -> Option<Cow<'a, Path>> {
1217 let file = buffer.read(cx).as_singleton()?.read(cx).file()?;
1218 path_for_file(file.as_ref(), height, include_filename, cx)
1219}
1220
1221fn path_for_file<'a>(
1222 file: &'a dyn language::File,
1223 mut height: usize,
1224 include_filename: bool,
1225 cx: &'a AppContext,
1226) -> Option<Cow<'a, Path>> {
1227 // Ensure we always render at least the filename.
1228 height += 1;
1229
1230 let mut prefix = file.path().as_ref();
1231 while height > 0 {
1232 if let Some(parent) = prefix.parent() {
1233 prefix = parent;
1234 height -= 1;
1235 } else {
1236 break;
1237 }
1238 }
1239
1240 // Here we could have just always used `full_path`, but that is very
1241 // allocation-heavy and so we try to use a `Cow<Path>` if we haven't
1242 // traversed all the way up to the worktree's root.
1243 if height > 0 {
1244 let full_path = file.full_path(cx);
1245 if include_filename {
1246 Some(full_path.into())
1247 } else {
1248 Some(full_path.parent()?.to_path_buf().into())
1249 }
1250 } else {
1251 let mut path = file.path().strip_prefix(prefix).ok()?;
1252 if !include_filename {
1253 path = path.parent()?;
1254 }
1255 Some(path.into())
1256 }
1257}
1258
1259#[cfg(test)]
1260mod tests {
1261 use super::*;
1262 use gpui::AppContext;
1263 use std::{
1264 path::{Path, PathBuf},
1265 sync::Arc,
1266 time::SystemTime,
1267 };
1268
1269 #[gpui::test]
1270 fn test_path_for_file(cx: &mut AppContext) {
1271 let file = TestFile {
1272 path: Path::new("").into(),
1273 full_path: PathBuf::from(""),
1274 };
1275 assert_eq!(path_for_file(&file, 0, false, cx), None);
1276 }
1277
1278 struct TestFile {
1279 path: Arc<Path>,
1280 full_path: PathBuf,
1281 }
1282
1283 impl language::File for TestFile {
1284 fn path(&self) -> &Arc<Path> {
1285 &self.path
1286 }
1287
1288 fn full_path(&self, _: &gpui::AppContext) -> PathBuf {
1289 self.full_path.clone()
1290 }
1291
1292 fn as_local(&self) -> Option<&dyn language::LocalFile> {
1293 unimplemented!()
1294 }
1295
1296 fn mtime(&self) -> SystemTime {
1297 unimplemented!()
1298 }
1299
1300 fn file_name<'a>(&'a self, _: &'a gpui::AppContext) -> &'a std::ffi::OsStr {
1301 unimplemented!()
1302 }
1303
1304 fn worktree_id(&self) -> usize {
1305 0
1306 }
1307
1308 fn is_deleted(&self) -> bool {
1309 unimplemented!()
1310 }
1311
1312 fn as_any(&self) -> &dyn std::any::Any {
1313 unimplemented!()
1314 }
1315
1316 fn to_proto(&self) -> rpc::proto::File {
1317 unimplemented!()
1318 }
1319 }
1320}