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, FocusHandle, Model,
12 ParentElement, Pixels, SharedString, Styled, Subscription, Task, View, ViewContext,
13 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 util::{paths::PathExt, ResultExt, TryFutureExt};
34use workspace::item::{BreadcrumbText, FollowableItemHandle};
35use workspace::{
36 item::{FollowableItem, Item, ItemEvent, ItemHandle, ProjectItem},
37 searchable::{Direction, SearchEvent, SearchableItem, SearchableItemHandle},
38 ItemId, ItemNavHistory, Pane, ToolbarItemLocation, ViewId, Workspace, WorkspaceId,
39};
40
41pub const MAX_TAB_TITLE_LEN: usize = 24;
42
43impl FollowableItem for Editor {
44 fn remote_id(&self) -> Option<ViewId> {
45 self.remote_id
46 }
47
48 fn from_state_proto(
49 pane: View<workspace::Pane>,
50 workspace: View<Workspace>,
51 remote_id: ViewId,
52 state: &mut Option<proto::view::Variant>,
53 cx: &mut AppContext,
54 ) -> Option<Task<Result<View<Self>>>> {
55 todo!()
56 }
57 // let project = workspace.read(cx).project().to_owned();
58 // let Some(proto::view::Variant::Editor(_)) = state else {
59 // return None;
60 // };
61 // let Some(proto::view::Variant::Editor(state)) = state.take() else {
62 // unreachable!()
63 // };
64
65 // let client = project.read(cx).client();
66 // let replica_id = project.read(cx).replica_id();
67 // let buffer_ids = state
68 // .excerpts
69 // .iter()
70 // .map(|excerpt| excerpt.buffer_id)
71 // .collect::<HashSet<_>>();
72 // let buffers = project.update(cx, |project, cx| {
73 // buffer_ids
74 // .iter()
75 // .map(|id| project.open_buffer_by_id(*id, cx))
76 // .collect::<Vec<_>>()
77 // });
78
79 // let pane = pane.downgrade();
80 // Some(cx.spawn(|mut cx| async move {
81 // let mut buffers = futures::future::try_join_all(buffers).await?;
82 // let editor = pane.read_with(&cx, |pane, cx| {
83 // let mut editors = pane.items_of_type::<Self>();
84 // editors.find(|editor| {
85 // let ids_match = editor.remote_id(&client, cx) == Some(remote_id);
86 // let singleton_buffer_matches = state.singleton
87 // && buffers.first()
88 // == editor.read(cx).buffer.read(cx).as_singleton().as_ref();
89 // ids_match || singleton_buffer_matches
90 // })
91 // })?;
92
93 // let editor = if let Some(editor) = editor {
94 // editor
95 // } else {
96 // pane.update(&mut cx, |_, cx| {
97 // let multibuffer = cx.add_model(|cx| {
98 // let mut multibuffer;
99 // if state.singleton && buffers.len() == 1 {
100 // multibuffer = MultiBuffer::singleton(buffers.pop().unwrap(), cx)
101 // } else {
102 // multibuffer = MultiBuffer::new(replica_id);
103 // let mut excerpts = state.excerpts.into_iter().peekable();
104 // while let Some(excerpt) = excerpts.peek() {
105 // let buffer_id = excerpt.buffer_id;
106 // let buffer_excerpts = iter::from_fn(|| {
107 // let excerpt = excerpts.peek()?;
108 // (excerpt.buffer_id == buffer_id)
109 // .then(|| excerpts.next().unwrap())
110 // });
111 // let buffer =
112 // buffers.iter().find(|b| b.read(cx).remote_id() == buffer_id);
113 // if let Some(buffer) = buffer {
114 // multibuffer.push_excerpts(
115 // buffer.clone(),
116 // buffer_excerpts.filter_map(deserialize_excerpt_range),
117 // cx,
118 // );
119 // }
120 // }
121 // };
122
123 // if let Some(title) = &state.title {
124 // multibuffer = multibuffer.with_title(title.clone())
125 // }
126
127 // multibuffer
128 // });
129
130 // cx.add_view(|cx| {
131 // let mut editor =
132 // Editor::for_multibuffer(multibuffer, Some(project.clone()), cx);
133 // editor.remote_id = Some(remote_id);
134 // editor
135 // })
136 // })?
137 // };
138
139 // update_editor_from_message(
140 // editor.downgrade(),
141 // project,
142 // proto::update_view::Editor {
143 // selections: state.selections,
144 // pending_selection: state.pending_selection,
145 // scroll_top_anchor: state.scroll_top_anchor,
146 // scroll_x: state.scroll_x,
147 // scroll_y: state.scroll_y,
148 // ..Default::default()
149 // },
150 // &mut cx,
151 // )
152 // .await?;
153
154 // Ok(editor)
155 // }))
156 // }
157
158 fn set_leader_peer_id(&mut self, leader_peer_id: Option<PeerId>, cx: &mut ViewContext<Self>) {
159 self.leader_peer_id = leader_peer_id;
160 if self.leader_peer_id.is_some() {
161 self.buffer.update(cx, |buffer, cx| {
162 buffer.remove_active_selections(cx);
163 });
164 } else if self.focus_handle.is_focused(cx) {
165 self.buffer.update(cx, |buffer, cx| {
166 buffer.set_active_selections(
167 &self.selections.disjoint_anchors(),
168 self.selections.line_mode,
169 self.cursor_shape,
170 cx,
171 );
172 });
173 }
174 cx.notify();
175 }
176
177 fn to_state_proto(&self, cx: &AppContext) -> Option<proto::view::Variant> {
178 let buffer = self.buffer.read(cx);
179 let scroll_anchor = self.scroll_manager.anchor();
180 let excerpts = buffer
181 .read(cx)
182 .excerpts()
183 .map(|(id, buffer, range)| proto::Excerpt {
184 id: id.to_proto(),
185 buffer_id: buffer.remote_id(),
186 context_start: Some(serialize_text_anchor(&range.context.start)),
187 context_end: Some(serialize_text_anchor(&range.context.end)),
188 primary_start: range
189 .primary
190 .as_ref()
191 .map(|range| serialize_text_anchor(&range.start)),
192 primary_end: range
193 .primary
194 .as_ref()
195 .map(|range| serialize_text_anchor(&range.end)),
196 })
197 .collect();
198
199 Some(proto::view::Variant::Editor(proto::view::Editor {
200 singleton: buffer.is_singleton(),
201 title: (!buffer.is_singleton()).then(|| buffer.title(cx).into()),
202 excerpts,
203 scroll_top_anchor: Some(serialize_anchor(&scroll_anchor.anchor)),
204 scroll_x: scroll_anchor.offset.x,
205 scroll_y: scroll_anchor.offset.y,
206 selections: self
207 .selections
208 .disjoint_anchors()
209 .iter()
210 .map(serialize_selection)
211 .collect(),
212 pending_selection: self
213 .selections
214 .pending_anchor()
215 .as_ref()
216 .map(serialize_selection),
217 }))
218 }
219
220 fn add_event_to_update_proto(
221 &self,
222 event: &Self::Event,
223 update: &mut Option<proto::update_view::Variant>,
224 cx: &AppContext,
225 ) -> bool {
226 let update =
227 update.get_or_insert_with(|| proto::update_view::Variant::Editor(Default::default()));
228
229 match update {
230 proto::update_view::Variant::Editor(update) => match event {
231 Event::ExcerptsAdded {
232 buffer,
233 predecessor,
234 excerpts,
235 } => {
236 let buffer_id = buffer.read(cx).remote_id();
237 let mut excerpts = excerpts.iter();
238 if let Some((id, range)) = excerpts.next() {
239 update.inserted_excerpts.push(proto::ExcerptInsertion {
240 previous_excerpt_id: Some(predecessor.to_proto()),
241 excerpt: serialize_excerpt(buffer_id, id, range),
242 });
243 update.inserted_excerpts.extend(excerpts.map(|(id, range)| {
244 proto::ExcerptInsertion {
245 previous_excerpt_id: None,
246 excerpt: serialize_excerpt(buffer_id, id, range),
247 }
248 }))
249 }
250 true
251 }
252 Event::ExcerptsRemoved { ids } => {
253 update
254 .deleted_excerpts
255 .extend(ids.iter().map(ExcerptId::to_proto));
256 true
257 }
258 Event::ScrollPositionChanged { .. } => {
259 let scroll_anchor = self.scroll_manager.anchor();
260 update.scroll_top_anchor = Some(serialize_anchor(&scroll_anchor.anchor));
261 update.scroll_x = scroll_anchor.offset.x;
262 update.scroll_y = scroll_anchor.offset.y;
263 true
264 }
265 Event::SelectionsChanged { .. } => {
266 update.selections = self
267 .selections
268 .disjoint_anchors()
269 .iter()
270 .map(serialize_selection)
271 .collect();
272 update.pending_selection = self
273 .selections
274 .pending_anchor()
275 .as_ref()
276 .map(serialize_selection);
277 true
278 }
279 _ => false,
280 },
281 }
282 }
283
284 fn apply_update_proto(
285 &mut self,
286 project: &Model<Project>,
287 message: update_view::Variant,
288 cx: &mut ViewContext<Self>,
289 ) -> Task<Result<()>> {
290 let update_view::Variant::Editor(message) = message;
291 let project = project.clone();
292 cx.spawn(|this, mut cx| async move {
293 update_editor_from_message(this, project, message, &mut cx).await
294 })
295 }
296
297 fn should_unfollow_on_event(event: &Self::Event, _: &AppContext) -> bool {
298 match event {
299 Event::Edited => true,
300 Event::SelectionsChanged { local } => *local,
301 Event::ScrollPositionChanged { local, .. } => *local,
302 _ => false,
303 }
304 }
305
306 fn is_project_item(&self, _cx: &AppContext) -> bool {
307 true
308 }
309}
310
311async fn update_editor_from_message(
312 this: WeakView<Editor>,
313 project: Model<Project>,
314 message: proto::update_view::Editor,
315 cx: &mut AsyncAppContext,
316) -> Result<()> {
317 todo!()
318}
319// Previous implementation of the above
320// // Open all of the buffers of which excerpts were added to the editor.
321// let inserted_excerpt_buffer_ids = message
322// .inserted_excerpts
323// .iter()
324// .filter_map(|insertion| Some(insertion.excerpt.as_ref()?.buffer_id))
325// .collect::<HashSet<_>>();
326// let inserted_excerpt_buffers = project.update(cx, |project, cx| {
327// inserted_excerpt_buffer_ids
328// .into_iter()
329// .map(|id| project.open_buffer_by_id(id, cx))
330// .collect::<Vec<_>>()
331// })?;
332// let _inserted_excerpt_buffers = try_join_all(inserted_excerpt_buffers).await?;
333
334// // Update the editor's excerpts.
335// this.update(cx, |editor, cx| {
336// editor.buffer.update(cx, |multibuffer, cx| {
337// let mut removed_excerpt_ids = message
338// .deleted_excerpts
339// .into_iter()
340// .map(ExcerptId::from_proto)
341// .collect::<Vec<_>>();
342// removed_excerpt_ids.sort_by({
343// let multibuffer = multibuffer.read(cx);
344// move |a, b| a.cmp(&b, &multibuffer)
345// });
346
347// let mut insertions = message.inserted_excerpts.into_iter().peekable();
348// while let Some(insertion) = insertions.next() {
349// let Some(excerpt) = insertion.excerpt else {
350// continue;
351// };
352// let Some(previous_excerpt_id) = insertion.previous_excerpt_id else {
353// continue;
354// };
355// let buffer_id = excerpt.buffer_id;
356// let Some(buffer) = project.read(cx).buffer_for_id(buffer_id) else {
357// continue;
358// };
359
360// let adjacent_excerpts = iter::from_fn(|| {
361// let insertion = insertions.peek()?;
362// if insertion.previous_excerpt_id.is_none()
363// && insertion.excerpt.as_ref()?.buffer_id == buffer_id
364// {
365// insertions.next()?.excerpt
366// } else {
367// None
368// }
369// });
370
371// multibuffer.insert_excerpts_with_ids_after(
372// ExcerptId::from_proto(previous_excerpt_id),
373// buffer,
374// [excerpt]
375// .into_iter()
376// .chain(adjacent_excerpts)
377// .filter_map(|excerpt| {
378// Some((
379// ExcerptId::from_proto(excerpt.id),
380// deserialize_excerpt_range(excerpt)?,
381// ))
382// }),
383// cx,
384// );
385// }
386
387// multibuffer.remove_excerpts(removed_excerpt_ids, cx);
388// });
389// })?;
390
391// // Deserialize the editor state.
392// let (selections, pending_selection, scroll_top_anchor) = this.update(cx, |editor, cx| {
393// let buffer = editor.buffer.read(cx).read(cx);
394// let selections = message
395// .selections
396// .into_iter()
397// .filter_map(|selection| deserialize_selection(&buffer, selection))
398// .collect::<Vec<_>>();
399// let pending_selection = message
400// .pending_selection
401// .and_then(|selection| deserialize_selection(&buffer, selection));
402// let scroll_top_anchor = message
403// .scroll_top_anchor
404// .and_then(|anchor| deserialize_anchor(&buffer, anchor));
405// anyhow::Ok((selections, pending_selection, scroll_top_anchor))
406// })??;
407
408// // Wait until the buffer has received all of the operations referenced by
409// // the editor's new state.
410// this.update(cx, |editor, cx| {
411// editor.buffer.update(cx, |buffer, cx| {
412// buffer.wait_for_anchors(
413// selections
414// .iter()
415// .chain(pending_selection.as_ref())
416// .flat_map(|selection| [selection.start, selection.end])
417// .chain(scroll_top_anchor),
418// cx,
419// )
420// })
421// })?
422// .await?;
423
424// // Update the editor's state.
425// this.update(cx, |editor, cx| {
426// if !selections.is_empty() || pending_selection.is_some() {
427// editor.set_selections_from_remote(selections, pending_selection, cx);
428// editor.request_autoscroll_remotely(Autoscroll::newest(), cx);
429// } else if let Some(scroll_top_anchor) = scroll_top_anchor {
430// editor.set_scroll_anchor_remote(
431// ScrollAnchor {
432// anchor: scroll_top_anchor,
433// offset: point(message.scroll_x, message.scroll_y),
434// },
435// cx,
436// );
437// }
438// })?;
439// Ok(())
440// }
441
442fn serialize_excerpt(
443 buffer_id: u64,
444 id: &ExcerptId,
445 range: &ExcerptRange<language::Anchor>,
446) -> Option<proto::Excerpt> {
447 Some(proto::Excerpt {
448 id: id.to_proto(),
449 buffer_id,
450 context_start: Some(serialize_text_anchor(&range.context.start)),
451 context_end: Some(serialize_text_anchor(&range.context.end)),
452 primary_start: range
453 .primary
454 .as_ref()
455 .map(|r| serialize_text_anchor(&r.start)),
456 primary_end: range
457 .primary
458 .as_ref()
459 .map(|r| serialize_text_anchor(&r.end)),
460 })
461}
462
463fn serialize_selection(selection: &Selection<Anchor>) -> proto::Selection {
464 proto::Selection {
465 id: selection.id as u64,
466 start: Some(serialize_anchor(&selection.start)),
467 end: Some(serialize_anchor(&selection.end)),
468 reversed: selection.reversed,
469 }
470}
471
472fn serialize_anchor(anchor: &Anchor) -> proto::EditorAnchor {
473 proto::EditorAnchor {
474 excerpt_id: anchor.excerpt_id.to_proto(),
475 anchor: Some(serialize_text_anchor(&anchor.text_anchor)),
476 }
477}
478
479fn deserialize_excerpt_range(excerpt: proto::Excerpt) -> Option<ExcerptRange<language::Anchor>> {
480 let context = {
481 let start = language::proto::deserialize_anchor(excerpt.context_start?)?;
482 let end = language::proto::deserialize_anchor(excerpt.context_end?)?;
483 start..end
484 };
485 let primary = excerpt
486 .primary_start
487 .zip(excerpt.primary_end)
488 .and_then(|(start, end)| {
489 let start = language::proto::deserialize_anchor(start)?;
490 let end = language::proto::deserialize_anchor(end)?;
491 Some(start..end)
492 });
493 Some(ExcerptRange { context, primary })
494}
495
496fn deserialize_selection(
497 buffer: &MultiBufferSnapshot,
498 selection: proto::Selection,
499) -> Option<Selection<Anchor>> {
500 Some(Selection {
501 id: selection.id as usize,
502 start: deserialize_anchor(buffer, selection.start?)?,
503 end: deserialize_anchor(buffer, selection.end?)?,
504 reversed: selection.reversed,
505 goal: SelectionGoal::None,
506 })
507}
508
509fn deserialize_anchor(buffer: &MultiBufferSnapshot, anchor: proto::EditorAnchor) -> Option<Anchor> {
510 let excerpt_id = ExcerptId::from_proto(anchor.excerpt_id);
511 Some(Anchor {
512 excerpt_id,
513 text_anchor: language::proto::deserialize_anchor(anchor.anchor?)?,
514 buffer_id: buffer.buffer_id_for_excerpt(excerpt_id),
515 })
516}
517
518impl Item for Editor {
519 fn focus_handle(&self) -> FocusHandle {
520 self.focus_handle.clone()
521 }
522
523 fn navigate(&mut self, data: Box<dyn std::any::Any>, cx: &mut ViewContext<Self>) -> bool {
524 todo!();
525 // if let Ok(data) = data.downcast::<NavigationData>() {
526 // let newest_selection = self.selections.newest::<Point>(cx);
527 // let buffer = self.buffer.read(cx).read(cx);
528 // let offset = if buffer.can_resolve(&data.cursor_anchor) {
529 // data.cursor_anchor.to_point(&buffer)
530 // } else {
531 // buffer.clip_point(data.cursor_position, Bias::Left)
532 // };
533
534 // let mut scroll_anchor = data.scroll_anchor;
535 // if !buffer.can_resolve(&scroll_anchor.anchor) {
536 // scroll_anchor.anchor = buffer.anchor_before(
537 // buffer.clip_point(Point::new(data.scroll_top_row, 0), Bias::Left),
538 // );
539 // }
540
541 // drop(buffer);
542
543 // if newest_selection.head() == offset {
544 // false
545 // } else {
546 // let nav_history = self.nav_history.take();
547 // self.set_scroll_anchor(scroll_anchor, cx);
548 // self.change_selections(Some(Autoscroll::fit()), cx, |s| {
549 // s.select_ranges([offset..offset])
550 // });
551 // self.nav_history = nav_history;
552 // true
553 // }
554 // } else {
555 // false
556 // }
557 }
558
559 fn tab_tooltip_text(&self, cx: &AppContext) -> Option<SharedString> {
560 let file_path = self
561 .buffer()
562 .read(cx)
563 .as_singleton()?
564 .read(cx)
565 .file()
566 .and_then(|f| f.as_local())?
567 .abs_path(cx);
568
569 let file_path = file_path.compact().to_string_lossy().to_string();
570
571 Some(file_path.into())
572 }
573
574 fn tab_description<'a>(&self, detail: usize, cx: &'a AppContext) -> Option<SharedString> {
575 let path = path_for_buffer(&self.buffer, detail, true, cx)?;
576 Some(path.to_string_lossy().to_string().into())
577 }
578
579 fn tab_content<T: 'static>(&self, detail: Option<usize>, cx: &AppContext) -> AnyElement<T> {
580 let theme = cx.theme();
581
582 AnyElement::new(
583 div()
584 .flex()
585 .flex_row()
586 .items_center()
587 .gap_2()
588 .child(self.title(cx).to_string())
589 .children(detail.and_then(|detail| {
590 let path = path_for_buffer(&self.buffer, detail, false, cx)?;
591 let description = path.to_string_lossy();
592
593 Some(
594 div()
595 .text_color(theme.colors().text_muted)
596 .text_xs()
597 .child(util::truncate_and_trailoff(&description, MAX_TAB_TITLE_LEN)),
598 )
599 })),
600 )
601 }
602
603 fn for_each_project_item(
604 &self,
605 cx: &AppContext,
606 f: &mut dyn FnMut(EntityId, &dyn project::Item),
607 ) {
608 self.buffer
609 .read(cx)
610 .for_each_buffer(|buffer| f(buffer.entity_id(), buffer.read(cx)));
611 }
612
613 fn is_singleton(&self, cx: &AppContext) -> bool {
614 self.buffer.read(cx).is_singleton()
615 }
616
617 fn clone_on_split(
618 &self,
619 _workspace_id: WorkspaceId,
620 cx: &mut ViewContext<Self>,
621 ) -> Option<View<Editor>>
622 where
623 Self: Sized,
624 {
625 Some(cx.build_view(|cx| self.clone(cx)))
626 }
627
628 fn set_nav_history(&mut self, history: ItemNavHistory, _: &mut ViewContext<Self>) {
629 self.nav_history = Some(history);
630 }
631
632 fn deactivated(&mut self, cx: &mut ViewContext<Self>) {
633 let selection = self.selections.newest_anchor();
634 self.push_to_nav_history(selection.head(), None, cx);
635 }
636
637 fn workspace_deactivated(&mut self, cx: &mut ViewContext<Self>) {
638 hide_link_definition(self, cx);
639 self.link_go_to_definition_state.last_trigger_point = None;
640 }
641
642 fn is_dirty(&self, cx: &AppContext) -> bool {
643 self.buffer().read(cx).read(cx).is_dirty()
644 }
645
646 fn has_conflict(&self, cx: &AppContext) -> bool {
647 self.buffer().read(cx).read(cx).has_conflict()
648 }
649
650 fn can_save(&self, cx: &AppContext) -> bool {
651 let buffer = &self.buffer().read(cx);
652 if let Some(buffer) = buffer.as_singleton() {
653 buffer.read(cx).project_path(cx).is_some()
654 } else {
655 true
656 }
657 }
658
659 fn save(&mut self, project: Model<Project>, cx: &mut ViewContext<Self>) -> Task<Result<()>> {
660 self.report_editor_event("save", None, cx);
661 let format = self.perform_format(project.clone(), FormatTrigger::Save, cx);
662 let buffers = self.buffer().clone().read(cx).all_buffers();
663 cx.spawn(|_, mut cx| async move {
664 format.await?;
665
666 if buffers.len() == 1 {
667 project
668 .update(&mut cx, |project, cx| project.save_buffers(buffers, cx))?
669 .await?;
670 } else {
671 // For multi-buffers, only save those ones that contain changes. For clean buffers
672 // we simulate saving by calling `Buffer::did_save`, so that language servers or
673 // other downstream listeners of save events get notified.
674 let (dirty_buffers, clean_buffers) = buffers.into_iter().partition(|buffer| {
675 buffer
676 .update(&mut cx, |buffer, _| {
677 buffer.is_dirty() || buffer.has_conflict()
678 })
679 .unwrap_or(false)
680 });
681
682 project
683 .update(&mut cx, |project, cx| {
684 project.save_buffers(dirty_buffers, cx)
685 })?
686 .await?;
687 for buffer in clean_buffers {
688 buffer.update(&mut cx, |buffer, cx| {
689 let version = buffer.saved_version().clone();
690 let fingerprint = buffer.saved_version_fingerprint();
691 let mtime = buffer.saved_mtime();
692 buffer.did_save(version, fingerprint, mtime, cx);
693 });
694 }
695 }
696
697 Ok(())
698 })
699 }
700
701 fn save_as(
702 &mut self,
703 project: Model<Project>,
704 abs_path: PathBuf,
705 cx: &mut ViewContext<Self>,
706 ) -> Task<Result<()>> {
707 let buffer = self
708 .buffer()
709 .read(cx)
710 .as_singleton()
711 .expect("cannot call save_as on an excerpt list");
712
713 let file_extension = abs_path
714 .extension()
715 .map(|a| a.to_string_lossy().to_string());
716 self.report_editor_event("save", file_extension, cx);
717
718 project.update(cx, |project, cx| {
719 project.save_buffer_as(buffer, abs_path, cx)
720 })
721 }
722
723 fn reload(&mut self, project: Model<Project>, cx: &mut ViewContext<Self>) -> Task<Result<()>> {
724 let buffer = self.buffer().clone();
725 let buffers = self.buffer.read(cx).all_buffers();
726 let reload_buffers =
727 project.update(cx, |project, cx| project.reload_buffers(buffers, true, cx));
728 cx.spawn(|this, mut cx| async move {
729 let transaction = reload_buffers.log_err().await;
730 this.update(&mut cx, |editor, cx| {
731 editor.request_autoscroll(Autoscroll::fit(), cx)
732 })?;
733 buffer.update(&mut cx, |buffer, cx| {
734 if let Some(transaction) = transaction {
735 if !buffer.is_singleton() {
736 buffer.push_transaction(&transaction.0, cx);
737 }
738 }
739 });
740 Ok(())
741 })
742 }
743
744 fn to_item_events(event: &Self::Event) -> SmallVec<[ItemEvent; 2]> {
745 let mut result = SmallVec::new();
746 match event {
747 Event::Closed => result.push(ItemEvent::CloseItem),
748 Event::Saved | Event::TitleChanged => {
749 result.push(ItemEvent::UpdateTab);
750 result.push(ItemEvent::UpdateBreadcrumbs);
751 }
752 Event::Reparsed => {
753 result.push(ItemEvent::UpdateBreadcrumbs);
754 }
755 Event::SelectionsChanged { local } if *local => {
756 result.push(ItemEvent::UpdateBreadcrumbs);
757 }
758 Event::DirtyChanged => {
759 result.push(ItemEvent::UpdateTab);
760 }
761 Event::BufferEdited => {
762 result.push(ItemEvent::Edit);
763 result.push(ItemEvent::UpdateBreadcrumbs);
764 }
765 _ => {}
766 }
767 result
768 }
769
770 fn as_searchable(&self, handle: &View<Self>) -> Option<Box<dyn SearchableItemHandle>> {
771 Some(Box::new(handle.clone()))
772 }
773
774 fn pixel_position_of_cursor(&self, _: &AppContext) -> Option<gpui::Point<Pixels>> {
775 self.pixel_position_of_newest_cursor
776 }
777
778 fn breadcrumb_location(&self) -> ToolbarItemLocation {
779 ToolbarItemLocation::PrimaryLeft { flex: None }
780 }
781
782 fn breadcrumbs(&self, variant: &Theme, cx: &AppContext) -> Option<Vec<BreadcrumbText>> {
783 todo!();
784 // let cursor = self.selections.newest_anchor().head();
785 // let multibuffer = &self.buffer().read(cx);
786 // let (buffer_id, symbols) =
787 // multibuffer.symbols_containing(cursor, Some(&theme.editor.syntax), cx)?;
788 // let buffer = multibuffer.buffer(buffer_id)?;
789
790 // let buffer = buffer.read(cx);
791 // let filename = buffer
792 // .snapshot()
793 // .resolve_file_path(
794 // cx,
795 // self.project
796 // .as_ref()
797 // .map(|project| project.read(cx).visible_worktrees(cx).count() > 1)
798 // .unwrap_or_default(),
799 // )
800 // .map(|path| path.to_string_lossy().to_string())
801 // .unwrap_or_else(|| "untitled".to_string());
802
803 // let mut breadcrumbs = vec![BreadcrumbText {
804 // text: filename,
805 // highlights: None,
806 // }];
807 // breadcrumbs.extend(symbols.into_iter().map(|symbol| BreadcrumbText {
808 // text: symbol.text,
809 // highlights: Some(symbol.highlight_ranges),
810 // }));
811 // Some(breadcrumbs)
812 }
813
814 fn added_to_workspace(&mut self, workspace: &mut Workspace, cx: &mut ViewContext<Self>) {
815 let workspace_id = workspace.database_id();
816 let item_id = cx.view().entity_id().as_u64() as ItemId;
817 self.workspace = Some((workspace.weak_handle(), workspace.database_id()));
818
819 fn serialize(
820 buffer: Model<Buffer>,
821 workspace_id: WorkspaceId,
822 item_id: ItemId,
823 cx: &mut AppContext,
824 ) {
825 if let Some(file) = buffer.read(cx).file().and_then(|file| file.as_local()) {
826 let path = file.abs_path(cx);
827
828 cx.background_executor()
829 .spawn(async move {
830 DB.save_path(item_id, workspace_id, path.clone())
831 .await
832 .log_err()
833 })
834 .detach();
835 }
836 }
837
838 if let Some(buffer) = self.buffer().read(cx).as_singleton() {
839 serialize(buffer.clone(), workspace_id, item_id, cx);
840
841 cx.subscribe(&buffer, |this, buffer, event, cx| {
842 if let Some((_, workspace_id)) = this.workspace.as_ref() {
843 if let language::Event::FileHandleChanged = event {
844 serialize(
845 buffer,
846 *workspace_id,
847 cx.view().entity_id().as_u64() as ItemId,
848 cx,
849 );
850 }
851 }
852 })
853 .detach();
854 }
855 }
856
857 fn serialized_item_kind() -> Option<&'static str> {
858 Some("Editor")
859 }
860
861 fn deserialize(
862 project: Model<Project>,
863 _workspace: WeakView<Workspace>,
864 workspace_id: workspace::WorkspaceId,
865 item_id: ItemId,
866 cx: &mut ViewContext<Pane>,
867 ) -> Task<Result<View<Self>>> {
868 let project_item: Result<_> = project.update(cx, |project, cx| {
869 // Look up the path with this key associated, create a self with that path
870 let path = DB
871 .get_path(item_id, workspace_id)?
872 .context("No path stored for this editor")?;
873
874 let (worktree, path) = project
875 .find_local_worktree(&path, cx)
876 .with_context(|| format!("No worktree for path: {path:?}"))?;
877 let project_path = ProjectPath {
878 worktree_id: worktree.read(cx).id(),
879 path: path.into(),
880 };
881
882 Ok(project.open_path(project_path, cx))
883 });
884
885 project_item
886 .map(|project_item| {
887 cx.spawn(|pane, mut cx| async move {
888 let (_, project_item) = project_item.await?;
889 let buffer = project_item
890 .downcast::<Buffer>()
891 .map_err(|_| anyhow!("Project item at stored path was not a buffer"))?;
892 Ok(pane.update(&mut cx, |_, cx| {
893 cx.build_view(|cx| {
894 let mut editor = Editor::for_buffer(buffer, Some(project), cx);
895
896 editor.read_scroll_position_from_db(item_id, workspace_id, cx);
897 editor
898 })
899 })?)
900 })
901 })
902 .unwrap_or_else(|error| Task::ready(Err(error)))
903 }
904}
905
906impl ProjectItem for Editor {
907 type Item = Buffer;
908
909 fn for_project_item(
910 project: Model<Project>,
911 buffer: Model<Buffer>,
912 cx: &mut ViewContext<Self>,
913 ) -> Self {
914 Self::for_buffer(buffer, Some(project), cx)
915 }
916}
917
918pub(crate) enum BufferSearchHighlights {}
919impl SearchableItem for Editor {
920 type Match = Range<Anchor>;
921
922 fn to_search_event(
923 &mut self,
924 event: &Self::Event,
925 _: &mut ViewContext<Self>,
926 ) -> Option<SearchEvent> {
927 match event {
928 Event::BufferEdited => Some(SearchEvent::MatchesInvalidated),
929 Event::SelectionsChanged { .. } => {
930 if self.selections.disjoint_anchors().len() == 1 {
931 Some(SearchEvent::ActiveMatchChanged)
932 } else {
933 None
934 }
935 }
936 _ => None,
937 }
938 }
939
940 fn clear_matches(&mut self, cx: &mut ViewContext<Self>) {
941 todo!()
942 // self.clear_background_highlights::<BufferSearchHighlights>(cx);
943 }
944
945 fn update_matches(&mut self, matches: Vec<Range<Anchor>>, cx: &mut ViewContext<Self>) {
946 todo!()
947 // self.highlight_background::<BufferSearchHighlights>(
948 // matches,
949 // |theme| theme.search.match_background,
950 // cx,
951 // );
952 }
953
954 fn query_suggestion(&mut self, cx: &mut ViewContext<Self>) -> String {
955 let setting = EditorSettings::get_global(cx).seed_search_query_from_cursor;
956 let snapshot = &self.snapshot(cx).buffer_snapshot;
957 let selection = self.selections.newest::<usize>(cx);
958
959 match setting {
960 SeedQuerySetting::Never => String::new(),
961 SeedQuerySetting::Selection | SeedQuerySetting::Always if !selection.is_empty() => {
962 snapshot
963 .text_for_range(selection.start..selection.end)
964 .collect()
965 }
966 SeedQuerySetting::Selection => String::new(),
967 SeedQuerySetting::Always => {
968 let (range, kind) = snapshot.surrounding_word(selection.start);
969 if kind == Some(CharKind::Word) {
970 let text: String = snapshot.text_for_range(range).collect();
971 if !text.trim().is_empty() {
972 return text;
973 }
974 }
975 String::new()
976 }
977 }
978 }
979
980 fn activate_match(
981 &mut self,
982 index: usize,
983 matches: Vec<Range<Anchor>>,
984 cx: &mut ViewContext<Self>,
985 ) {
986 todo!()
987 // self.unfold_ranges([matches[index].clone()], false, true, cx);
988 // let range = self.range_for_match(&matches[index]);
989 // self.change_selections(Some(Autoscroll::fit()), cx, |s| {
990 // s.select_ranges([range]);
991 // })
992 }
993
994 fn select_matches(&mut self, matches: Vec<Self::Match>, cx: &mut ViewContext<Self>) {
995 todo!()
996 // self.unfold_ranges(matches.clone(), false, false, cx);
997 // let mut ranges = Vec::new();
998 // for m in &matches {
999 // ranges.push(self.range_for_match(&m))
1000 // }
1001 // self.change_selections(None, cx, |s| s.select_ranges(ranges));
1002 }
1003 fn replace(
1004 &mut self,
1005 identifier: &Self::Match,
1006 query: &SearchQuery,
1007 cx: &mut ViewContext<Self>,
1008 ) {
1009 let text = self.buffer.read(cx);
1010 let text = text.snapshot(cx);
1011 let text = text.text_for_range(identifier.clone()).collect::<Vec<_>>();
1012 let text: Cow<_> = if text.len() == 1 {
1013 text.first().cloned().unwrap().into()
1014 } else {
1015 let joined_chunks = text.join("");
1016 joined_chunks.into()
1017 };
1018
1019 if let Some(replacement) = query.replacement_for(&text) {
1020 self.transact(cx, |this, cx| {
1021 this.edit([(identifier.clone(), Arc::from(&*replacement))], cx);
1022 });
1023 }
1024 }
1025 fn match_index_for_direction(
1026 &mut self,
1027 matches: &Vec<Range<Anchor>>,
1028 current_index: usize,
1029 direction: Direction,
1030 count: usize,
1031 cx: &mut ViewContext<Self>,
1032 ) -> usize {
1033 let buffer = self.buffer().read(cx).snapshot(cx);
1034 let current_index_position = if self.selections.disjoint_anchors().len() == 1 {
1035 self.selections.newest_anchor().head()
1036 } else {
1037 matches[current_index].start
1038 };
1039
1040 let mut count = count % matches.len();
1041 if count == 0 {
1042 return current_index;
1043 }
1044 match direction {
1045 Direction::Next => {
1046 if matches[current_index]
1047 .start
1048 .cmp(¤t_index_position, &buffer)
1049 .is_gt()
1050 {
1051 count = count - 1
1052 }
1053
1054 (current_index + count) % matches.len()
1055 }
1056 Direction::Prev => {
1057 if matches[current_index]
1058 .end
1059 .cmp(¤t_index_position, &buffer)
1060 .is_lt()
1061 {
1062 count = count - 1;
1063 }
1064
1065 if current_index >= count {
1066 current_index - count
1067 } else {
1068 matches.len() - (count - current_index)
1069 }
1070 }
1071 }
1072 }
1073
1074 fn find_matches(
1075 &mut self,
1076 query: Arc<project::search::SearchQuery>,
1077 cx: &mut ViewContext<Self>,
1078 ) -> Task<Vec<Range<Anchor>>> {
1079 let buffer = self.buffer().read(cx).snapshot(cx);
1080 cx.background_executor().spawn(async move {
1081 let mut ranges = Vec::new();
1082 if let Some((_, _, excerpt_buffer)) = buffer.as_singleton() {
1083 ranges.extend(
1084 query
1085 .search(excerpt_buffer, None)
1086 .await
1087 .into_iter()
1088 .map(|range| {
1089 buffer.anchor_after(range.start)..buffer.anchor_before(range.end)
1090 }),
1091 );
1092 } else {
1093 for excerpt in buffer.excerpt_boundaries_in_range(0..buffer.len()) {
1094 let excerpt_range = excerpt.range.context.to_offset(&excerpt.buffer);
1095 ranges.extend(
1096 query
1097 .search(&excerpt.buffer, Some(excerpt_range.clone()))
1098 .await
1099 .into_iter()
1100 .map(|range| {
1101 let start = excerpt
1102 .buffer
1103 .anchor_after(excerpt_range.start + range.start);
1104 let end = excerpt
1105 .buffer
1106 .anchor_before(excerpt_range.start + range.end);
1107 buffer.anchor_in_excerpt(excerpt.id.clone(), start)
1108 ..buffer.anchor_in_excerpt(excerpt.id.clone(), end)
1109 }),
1110 );
1111 }
1112 }
1113 ranges
1114 })
1115 }
1116
1117 fn active_match_index(
1118 &mut self,
1119 matches: Vec<Range<Anchor>>,
1120 cx: &mut ViewContext<Self>,
1121 ) -> Option<usize> {
1122 active_match_index(
1123 &matches,
1124 &self.selections.newest_anchor().head(),
1125 &self.buffer().read(cx).snapshot(cx),
1126 )
1127 }
1128}
1129
1130pub fn active_match_index(
1131 ranges: &[Range<Anchor>],
1132 cursor: &Anchor,
1133 buffer: &MultiBufferSnapshot,
1134) -> Option<usize> {
1135 if ranges.is_empty() {
1136 None
1137 } else {
1138 match ranges.binary_search_by(|probe| {
1139 if probe.end.cmp(cursor, &*buffer).is_lt() {
1140 Ordering::Less
1141 } else if probe.start.cmp(cursor, &*buffer).is_gt() {
1142 Ordering::Greater
1143 } else {
1144 Ordering::Equal
1145 }
1146 }) {
1147 Ok(i) | Err(i) => Some(cmp::min(i, ranges.len() - 1)),
1148 }
1149 }
1150}
1151
1152pub struct CursorPosition {
1153 position: Option<Point>,
1154 selected_count: usize,
1155 _observe_active_editor: Option<Subscription>,
1156}
1157
1158// impl Default for CursorPosition {
1159// fn default() -> Self {
1160// Self::new()
1161// }
1162// }
1163
1164// impl CursorPosition {
1165// pub fn new() -> Self {
1166// Self {
1167// position: None,
1168// selected_count: 0,
1169// _observe_active_editor: None,
1170// }
1171// }
1172
1173// fn update_position(&mut self, editor: View<Editor>, cx: &mut ViewContext<Self>) {
1174// let editor = editor.read(cx);
1175// let buffer = editor.buffer().read(cx).snapshot(cx);
1176
1177// self.selected_count = 0;
1178// let mut last_selection: Option<Selection<usize>> = None;
1179// for selection in editor.selections.all::<usize>(cx) {
1180// self.selected_count += selection.end - selection.start;
1181// if last_selection
1182// .as_ref()
1183// .map_or(true, |last_selection| selection.id > last_selection.id)
1184// {
1185// last_selection = Some(selection);
1186// }
1187// }
1188// self.position = last_selection.map(|s| s.head().to_point(&buffer));
1189
1190// cx.notify();
1191// }
1192// }
1193
1194// impl Entity for CursorPosition {
1195// type Event = ();
1196// }
1197
1198// impl View for CursorPosition {
1199// fn ui_name() -> &'static str {
1200// "CursorPosition"
1201// }
1202
1203// fn render(&mut self, cx: &mut ViewContext<Self>) -> AnyElement<Self> {
1204// if let Some(position) = self.position {
1205// let theme = &theme::current(cx).workspace.status_bar;
1206// let mut text = format!(
1207// "{}{FILE_ROW_COLUMN_DELIMITER}{}",
1208// position.row + 1,
1209// position.column + 1
1210// );
1211// if self.selected_count > 0 {
1212// write!(text, " ({} selected)", self.selected_count).unwrap();
1213// }
1214// Label::new(text, theme.cursor_position.clone()).into_any()
1215// } else {
1216// Empty::new().into_any()
1217// }
1218// }
1219// }
1220
1221// impl StatusItemView for CursorPosition {
1222// fn set_active_pane_item(
1223// &mut self,
1224// active_pane_item: Option<&dyn ItemHandle>,
1225// cx: &mut ViewContext<Self>,
1226// ) {
1227// if let Some(editor) = active_pane_item.and_then(|item| item.act_as::<Editor>(cx)) {
1228// self._observe_active_editor = Some(cx.observe(&editor, Self::update_position));
1229// self.update_position(editor, cx);
1230// } else {
1231// self.position = None;
1232// self._observe_active_editor = None;
1233// }
1234
1235// cx.notify();
1236// }
1237// }
1238
1239fn path_for_buffer<'a>(
1240 buffer: &Model<MultiBuffer>,
1241 height: usize,
1242 include_filename: bool,
1243 cx: &'a AppContext,
1244) -> Option<Cow<'a, Path>> {
1245 let file = buffer.read(cx).as_singleton()?.read(cx).file()?;
1246 path_for_file(file.as_ref(), height, include_filename, cx)
1247}
1248
1249fn path_for_file<'a>(
1250 file: &'a dyn language::File,
1251 mut height: usize,
1252 include_filename: bool,
1253 cx: &'a AppContext,
1254) -> Option<Cow<'a, Path>> {
1255 // Ensure we always render at least the filename.
1256 height += 1;
1257
1258 let mut prefix = file.path().as_ref();
1259 while height > 0 {
1260 if let Some(parent) = prefix.parent() {
1261 prefix = parent;
1262 height -= 1;
1263 } else {
1264 break;
1265 }
1266 }
1267
1268 // Here we could have just always used `full_path`, but that is very
1269 // allocation-heavy and so we try to use a `Cow<Path>` if we haven't
1270 // traversed all the way up to the worktree's root.
1271 if height > 0 {
1272 let full_path = file.full_path(cx);
1273 if include_filename {
1274 Some(full_path.into())
1275 } else {
1276 Some(full_path.parent()?.to_path_buf().into())
1277 }
1278 } else {
1279 let mut path = file.path().strip_prefix(prefix).ok()?;
1280 if !include_filename {
1281 path = path.parent()?;
1282 }
1283 Some(path.into())
1284 }
1285}
1286
1287#[cfg(test)]
1288mod tests {
1289 use super::*;
1290 use gpui::AppContext;
1291 use std::{
1292 path::{Path, PathBuf},
1293 sync::Arc,
1294 time::SystemTime,
1295 };
1296
1297 #[gpui::test]
1298 fn test_path_for_file(cx: &mut AppContext) {
1299 let file = TestFile {
1300 path: Path::new("").into(),
1301 full_path: PathBuf::from(""),
1302 };
1303 assert_eq!(path_for_file(&file, 0, false, cx), None);
1304 }
1305
1306 struct TestFile {
1307 path: Arc<Path>,
1308 full_path: PathBuf,
1309 }
1310
1311 impl language::File for TestFile {
1312 fn path(&self) -> &Arc<Path> {
1313 &self.path
1314 }
1315
1316 fn full_path(&self, _: &gpui::AppContext) -> PathBuf {
1317 self.full_path.clone()
1318 }
1319
1320 fn as_local(&self) -> Option<&dyn language::LocalFile> {
1321 unimplemented!()
1322 }
1323
1324 fn mtime(&self) -> SystemTime {
1325 unimplemented!()
1326 }
1327
1328 fn file_name<'a>(&'a self, _: &'a gpui::AppContext) -> &'a std::ffi::OsStr {
1329 unimplemented!()
1330 }
1331
1332 fn worktree_id(&self) -> usize {
1333 0
1334 }
1335
1336 fn is_deleted(&self) -> bool {
1337 unimplemented!()
1338 }
1339
1340 fn as_any(&self) -> &dyn std::any::Any {
1341 unimplemented!()
1342 }
1343
1344 fn to_proto(&self) -> rpc::proto::File {
1345 unimplemented!()
1346 }
1347 }
1348}