1use std::any::{Any, TypeId};
2
3use ::git::UnstageAndNext;
4use anyhow::Result;
5use buffer_diff::{BufferDiff, DiffHunkSecondaryStatus};
6use collections::HashSet;
7use editor::{
8 actions::{GoToHunk, GoToPrevHunk},
9 scroll::Autoscroll,
10 Editor, EditorEvent, ToPoint,
11};
12use feature_flags::FeatureFlagViewExt;
13use futures::StreamExt;
14use git::{status::FileStatus, Commit, StageAll, StageAndNext, ToggleStaged, UnstageAll};
15use gpui::{
16 actions, Action, AnyElement, AnyView, App, AppContext as _, AsyncWindowContext, Entity,
17 EventEmitter, FocusHandle, Focusable, Render, Subscription, Task, WeakEntity,
18};
19use language::{Anchor, Buffer, Capability, OffsetRangeExt, Point};
20use multi_buffer::{MultiBuffer, PathKey};
21use project::{git::GitStore, Project, ProjectPath};
22use theme::ActiveTheme;
23use ui::{prelude::*, vertical_divider, Tooltip};
24use util::ResultExt as _;
25use workspace::{
26 item::{BreadcrumbText, Item, ItemEvent, ItemHandle, TabContentParams},
27 searchable::SearchableItemHandle,
28 ItemNavHistory, SerializableItem, ToolbarItemEvent, ToolbarItemLocation, ToolbarItemView,
29 Workspace,
30};
31
32use crate::git_panel::{GitPanel, GitPanelAddon, GitStatusEntry};
33
34actions!(git, [Diff]);
35
36pub(crate) struct ProjectDiff {
37 multibuffer: Entity<MultiBuffer>,
38 editor: Entity<Editor>,
39 project: Entity<Project>,
40 git_store: Entity<GitStore>,
41 workspace: WeakEntity<Workspace>,
42 focus_handle: FocusHandle,
43 update_needed: postage::watch::Sender<()>,
44 pending_scroll: Option<PathKey>,
45
46 _task: Task<Result<()>>,
47 _subscription: Subscription,
48}
49
50struct DiffBuffer {
51 path_key: PathKey,
52 buffer: Entity<Buffer>,
53 diff: Entity<BufferDiff>,
54 file_status: FileStatus,
55}
56
57const CONFLICT_NAMESPACE: &'static str = "0";
58const TRACKED_NAMESPACE: &'static str = "1";
59const NEW_NAMESPACE: &'static str = "2";
60
61impl ProjectDiff {
62 pub(crate) fn register(
63 _: &mut Workspace,
64 window: Option<&mut Window>,
65 cx: &mut Context<Workspace>,
66 ) {
67 let Some(window) = window else { return };
68 cx.when_flag_enabled::<feature_flags::GitUiFeatureFlag>(window, |workspace, _, _cx| {
69 workspace.register_action(Self::deploy);
70 });
71
72 workspace::register_serializable_item::<ProjectDiff>(cx);
73 }
74
75 fn deploy(
76 workspace: &mut Workspace,
77 _: &Diff,
78 window: &mut Window,
79 cx: &mut Context<Workspace>,
80 ) {
81 Self::deploy_at(workspace, None, window, cx)
82 }
83
84 pub fn deploy_at(
85 workspace: &mut Workspace,
86 entry: Option<GitStatusEntry>,
87 window: &mut Window,
88 cx: &mut Context<Workspace>,
89 ) {
90 let project_diff = if let Some(existing) = workspace.item_of_type::<Self>(cx) {
91 workspace.activate_item(&existing, true, true, window, cx);
92 existing
93 } else {
94 let workspace_handle = cx.entity();
95 let project_diff =
96 cx.new(|cx| Self::new(workspace.project().clone(), workspace_handle, window, cx));
97 workspace.add_item_to_active_pane(
98 Box::new(project_diff.clone()),
99 None,
100 true,
101 window,
102 cx,
103 );
104 project_diff
105 };
106 if let Some(entry) = entry {
107 project_diff.update(cx, |project_diff, cx| {
108 project_diff.scroll_to(entry, window, cx);
109 })
110 }
111 }
112
113 fn new(
114 project: Entity<Project>,
115 workspace: Entity<Workspace>,
116 window: &mut Window,
117 cx: &mut Context<Self>,
118 ) -> Self {
119 let focus_handle = cx.focus_handle();
120 let multibuffer = cx.new(|_| MultiBuffer::new(Capability::ReadWrite));
121
122 let editor = cx.new(|cx| {
123 let mut diff_display_editor = Editor::for_multibuffer(
124 multibuffer.clone(),
125 Some(project.clone()),
126 true,
127 window,
128 cx,
129 );
130 diff_display_editor.set_expand_all_diff_hunks(cx);
131 diff_display_editor.register_addon(GitPanelAddon {
132 workspace: workspace.downgrade(),
133 });
134 diff_display_editor
135 });
136 cx.subscribe_in(&editor, window, Self::handle_editor_event)
137 .detach();
138
139 let git_store = project.read(cx).git_store().clone();
140 let git_store_subscription = cx.subscribe_in(
141 &git_store,
142 window,
143 move |this, _git_store, _event, _window, _cx| {
144 *this.update_needed.borrow_mut() = ();
145 },
146 );
147
148 let (mut send, recv) = postage::watch::channel::<()>();
149 let worker = window.spawn(cx, {
150 let this = cx.weak_entity();
151 |cx| Self::handle_status_updates(this, recv, cx)
152 });
153 // Kick of a refresh immediately
154 *send.borrow_mut() = ();
155
156 Self {
157 project,
158 git_store: git_store.clone(),
159 workspace: workspace.downgrade(),
160 focus_handle,
161 editor,
162 multibuffer,
163 pending_scroll: None,
164 update_needed: send,
165 _task: worker,
166 _subscription: git_store_subscription,
167 }
168 }
169
170 pub fn scroll_to(
171 &mut self,
172 entry: GitStatusEntry,
173 window: &mut Window,
174 cx: &mut Context<Self>,
175 ) {
176 let Some(git_repo) = self.git_store.read(cx).active_repository() else {
177 return;
178 };
179 let repo = git_repo.read(cx);
180
181 let namespace = if repo.has_conflict(&entry.repo_path) {
182 CONFLICT_NAMESPACE
183 } else if entry.status.is_created() {
184 NEW_NAMESPACE
185 } else {
186 TRACKED_NAMESPACE
187 };
188
189 let path_key = PathKey::namespaced(namespace, entry.repo_path.0.clone());
190
191 self.scroll_to_path(path_key, window, cx)
192 }
193
194 fn scroll_to_path(&mut self, path_key: PathKey, window: &mut Window, cx: &mut Context<Self>) {
195 if let Some(position) = self.multibuffer.read(cx).location_for_path(&path_key, cx) {
196 self.editor.update(cx, |editor, cx| {
197 editor.change_selections(Some(Autoscroll::focused()), window, cx, |s| {
198 s.select_ranges([position..position]);
199 })
200 })
201 } else {
202 self.pending_scroll = Some(path_key);
203 }
204 }
205
206 fn button_states(&self, cx: &App) -> ButtonStates {
207 let editor = self.editor.read(cx);
208 let snapshot = self.multibuffer.read(cx).snapshot(cx);
209 let prev_next = snapshot.diff_hunks().skip(1).next().is_some();
210 let mut selection = true;
211
212 let mut ranges = editor
213 .selections
214 .disjoint_anchor_ranges()
215 .collect::<Vec<_>>();
216 if !ranges.iter().any(|range| range.start != range.end) {
217 selection = false;
218 if let Some((excerpt_id, buffer, range)) = self.editor.read(cx).active_excerpt(cx) {
219 ranges = vec![multi_buffer::Anchor::range_in_buffer(
220 excerpt_id,
221 buffer.read(cx).remote_id(),
222 range,
223 )];
224 } else {
225 ranges = Vec::default();
226 }
227 }
228 let mut has_staged_hunks = false;
229 let mut has_unstaged_hunks = false;
230 for hunk in editor.diff_hunks_in_ranges(&ranges, &snapshot) {
231 match hunk.secondary_status {
232 DiffHunkSecondaryStatus::HasSecondaryHunk => {
233 has_unstaged_hunks = true;
234 }
235 DiffHunkSecondaryStatus::OverlapsWithSecondaryHunk => {
236 has_staged_hunks = true;
237 has_unstaged_hunks = true;
238 }
239 DiffHunkSecondaryStatus::None => {
240 has_staged_hunks = true;
241 }
242 }
243 }
244 let mut commit = false;
245 let mut stage_all = false;
246 let mut unstage_all = false;
247 self.workspace
248 .read_with(cx, |workspace, cx| {
249 if let Some(git_panel) = workspace.panel::<GitPanel>(cx) {
250 let git_panel = git_panel.read(cx);
251 commit = git_panel.can_commit();
252 stage_all = git_panel.can_stage_all();
253 unstage_all = git_panel.can_unstage_all();
254 }
255 })
256 .ok();
257
258 return ButtonStates {
259 stage: has_unstaged_hunks,
260 unstage: has_staged_hunks,
261 prev_next,
262 selection,
263 commit,
264 stage_all,
265 unstage_all,
266 };
267 }
268
269 fn handle_editor_event(
270 &mut self,
271 editor: &Entity<Editor>,
272 event: &EditorEvent,
273 window: &mut Window,
274 cx: &mut Context<Self>,
275 ) {
276 match event {
277 EditorEvent::ScrollPositionChanged { .. } => editor.update(cx, |editor, cx| {
278 let anchor = editor.scroll_manager.anchor().anchor;
279 let multibuffer = self.multibuffer.read(cx);
280 let snapshot = multibuffer.snapshot(cx);
281 let mut point = anchor.to_point(&snapshot);
282 point.row = (point.row + 1).min(snapshot.max_row().0);
283
284 let Some((_, buffer, _)) = self.multibuffer.read(cx).excerpt_containing(point, cx)
285 else {
286 return;
287 };
288 let Some(project_path) = buffer
289 .read(cx)
290 .file()
291 .map(|file| (file.worktree_id(cx), file.path().clone()))
292 else {
293 return;
294 };
295 self.workspace
296 .update(cx, |workspace, cx| {
297 if let Some(git_panel) = workspace.panel::<GitPanel>(cx) {
298 git_panel.update(cx, |git_panel, cx| {
299 git_panel.select_entry_by_path(project_path.into(), window, cx)
300 })
301 }
302 })
303 .ok();
304 }),
305 _ => {}
306 }
307 }
308
309 fn load_buffers(&mut self, cx: &mut Context<Self>) -> Vec<Task<Result<DiffBuffer>>> {
310 let Some(repo) = self.git_store.read(cx).active_repository() else {
311 self.multibuffer.update(cx, |multibuffer, cx| {
312 multibuffer.clear(cx);
313 });
314 return vec![];
315 };
316
317 let mut previous_paths = self.multibuffer.read(cx).paths().collect::<HashSet<_>>();
318
319 let mut result = vec![];
320 repo.update(cx, |repo, cx| {
321 for entry in repo.status() {
322 if !entry.status.has_changes() {
323 continue;
324 }
325 let Some(project_path) = repo.repo_path_to_project_path(&entry.repo_path) else {
326 continue;
327 };
328 let namespace = if repo.has_conflict(&entry.repo_path) {
329 CONFLICT_NAMESPACE
330 } else if entry.status.is_created() {
331 NEW_NAMESPACE
332 } else {
333 TRACKED_NAMESPACE
334 };
335 let path_key = PathKey::namespaced(namespace, entry.repo_path.0.clone());
336
337 previous_paths.remove(&path_key);
338 let load_buffer = self
339 .project
340 .update(cx, |project, cx| project.open_buffer(project_path, cx));
341
342 let project = self.project.clone();
343 result.push(cx.spawn(|_, mut cx| async move {
344 let buffer = load_buffer.await?;
345 let changes = project
346 .update(&mut cx, |project, cx| {
347 project.open_uncommitted_diff(buffer.clone(), cx)
348 })?
349 .await?;
350 Ok(DiffBuffer {
351 path_key,
352 buffer,
353 diff: changes,
354 file_status: entry.status,
355 })
356 }));
357 }
358 });
359 self.multibuffer.update(cx, |multibuffer, cx| {
360 for path in previous_paths {
361 multibuffer.remove_excerpts_for_path(path, cx);
362 }
363 });
364 result
365 }
366
367 fn register_buffer(
368 &mut self,
369 diff_buffer: DiffBuffer,
370 window: &mut Window,
371 cx: &mut Context<Self>,
372 ) {
373 let path_key = diff_buffer.path_key;
374 let buffer = diff_buffer.buffer;
375 let diff = diff_buffer.diff;
376
377 let snapshot = buffer.read(cx).snapshot();
378 let diff = diff.read(cx);
379 let diff_hunk_ranges = if diff.base_text().is_none() {
380 vec![Point::zero()..snapshot.max_point()]
381 } else {
382 diff.hunks_intersecting_range(Anchor::MIN..Anchor::MAX, &snapshot, cx)
383 .map(|diff_hunk| diff_hunk.buffer_range.to_point(&snapshot))
384 .collect::<Vec<_>>()
385 };
386
387 let is_excerpt_newly_added = self.multibuffer.update(cx, |multibuffer, cx| {
388 multibuffer.set_excerpts_for_path(
389 path_key.clone(),
390 buffer,
391 diff_hunk_ranges,
392 editor::DEFAULT_MULTIBUFFER_CONTEXT,
393 cx,
394 )
395 });
396
397 if is_excerpt_newly_added && diff_buffer.file_status.is_deleted() {
398 self.editor.update(cx, |editor, cx| {
399 editor.fold_buffer(snapshot.text.remote_id(), cx)
400 });
401 }
402
403 if self.multibuffer.read(cx).is_empty()
404 && self
405 .editor
406 .read(cx)
407 .focus_handle(cx)
408 .contains_focused(window, cx)
409 {
410 self.focus_handle.focus(window);
411 } else if self.focus_handle.is_focused(window) && !self.multibuffer.read(cx).is_empty() {
412 self.editor.update(cx, |editor, cx| {
413 editor.focus_handle(cx).focus(window);
414 });
415 }
416 if self.pending_scroll.as_ref() == Some(&path_key) {
417 self.scroll_to_path(path_key, window, cx);
418 }
419 }
420
421 pub async fn handle_status_updates(
422 this: WeakEntity<Self>,
423 mut recv: postage::watch::Receiver<()>,
424 mut cx: AsyncWindowContext,
425 ) -> Result<()> {
426 while let Some(_) = recv.next().await {
427 let buffers_to_load = this.update(&mut cx, |this, cx| this.load_buffers(cx))?;
428 for buffer_to_load in buffers_to_load {
429 if let Some(buffer) = buffer_to_load.await.log_err() {
430 cx.update(|window, cx| {
431 this.update(cx, |this, cx| this.register_buffer(buffer, window, cx))
432 .ok();
433 })?;
434 }
435 }
436 this.update(&mut cx, |this, _| this.pending_scroll.take())?;
437 }
438
439 Ok(())
440 }
441}
442
443impl EventEmitter<EditorEvent> for ProjectDiff {}
444
445impl Focusable for ProjectDiff {
446 fn focus_handle(&self, cx: &App) -> FocusHandle {
447 if self.multibuffer.read(cx).is_empty() {
448 self.focus_handle.clone()
449 } else {
450 self.editor.focus_handle(cx)
451 }
452 }
453}
454
455impl Item for ProjectDiff {
456 type Event = EditorEvent;
457
458 fn tab_icon(&self, _window: &Window, _cx: &App) -> Option<Icon> {
459 Some(Icon::new(IconName::GitBranch).color(Color::Muted))
460 }
461
462 fn to_item_events(event: &EditorEvent, f: impl FnMut(ItemEvent)) {
463 Editor::to_item_events(event, f)
464 }
465
466 fn deactivated(&mut self, window: &mut Window, cx: &mut Context<Self>) {
467 self.editor
468 .update(cx, |editor, cx| editor.deactivated(window, cx));
469 }
470
471 fn navigate(
472 &mut self,
473 data: Box<dyn Any>,
474 window: &mut Window,
475 cx: &mut Context<Self>,
476 ) -> bool {
477 self.editor
478 .update(cx, |editor, cx| editor.navigate(data, window, cx))
479 }
480
481 fn tab_tooltip_text(&self, _: &App) -> Option<SharedString> {
482 Some("Project Diff".into())
483 }
484
485 fn tab_content(&self, params: TabContentParams, _window: &Window, _: &App) -> AnyElement {
486 Label::new("Uncommitted Changes")
487 .color(if params.selected {
488 Color::Default
489 } else {
490 Color::Muted
491 })
492 .into_any_element()
493 }
494
495 fn telemetry_event_text(&self) -> Option<&'static str> {
496 Some("Project Diff Opened")
497 }
498
499 fn as_searchable(&self, _: &Entity<Self>) -> Option<Box<dyn SearchableItemHandle>> {
500 Some(Box::new(self.editor.clone()))
501 }
502
503 fn for_each_project_item(
504 &self,
505 cx: &App,
506 f: &mut dyn FnMut(gpui::EntityId, &dyn project::ProjectItem),
507 ) {
508 self.editor.for_each_project_item(cx, f)
509 }
510
511 fn is_singleton(&self, _: &App) -> bool {
512 false
513 }
514
515 fn set_nav_history(
516 &mut self,
517 nav_history: ItemNavHistory,
518 _: &mut Window,
519 cx: &mut Context<Self>,
520 ) {
521 self.editor.update(cx, |editor, _| {
522 editor.set_nav_history(Some(nav_history));
523 });
524 }
525
526 fn clone_on_split(
527 &self,
528 _workspace_id: Option<workspace::WorkspaceId>,
529 window: &mut Window,
530 cx: &mut Context<Self>,
531 ) -> Option<Entity<Self>>
532 where
533 Self: Sized,
534 {
535 let workspace = self.workspace.upgrade()?;
536 Some(cx.new(|cx| ProjectDiff::new(self.project.clone(), workspace, window, cx)))
537 }
538
539 fn is_dirty(&self, cx: &App) -> bool {
540 self.multibuffer.read(cx).is_dirty(cx)
541 }
542
543 fn has_conflict(&self, cx: &App) -> bool {
544 self.multibuffer.read(cx).has_conflict(cx)
545 }
546
547 fn can_save(&self, _: &App) -> bool {
548 true
549 }
550
551 fn save(
552 &mut self,
553 format: bool,
554 project: Entity<Project>,
555 window: &mut Window,
556 cx: &mut Context<Self>,
557 ) -> Task<Result<()>> {
558 self.editor.save(format, project, window, cx)
559 }
560
561 fn save_as(
562 &mut self,
563 _: Entity<Project>,
564 _: ProjectPath,
565 _window: &mut Window,
566 _: &mut Context<Self>,
567 ) -> Task<Result<()>> {
568 unreachable!()
569 }
570
571 fn reload(
572 &mut self,
573 project: Entity<Project>,
574 window: &mut Window,
575 cx: &mut Context<Self>,
576 ) -> Task<Result<()>> {
577 self.editor.reload(project, window, cx)
578 }
579
580 fn act_as_type<'a>(
581 &'a self,
582 type_id: TypeId,
583 self_handle: &'a Entity<Self>,
584 _: &'a App,
585 ) -> Option<AnyView> {
586 if type_id == TypeId::of::<Self>() {
587 Some(self_handle.to_any())
588 } else if type_id == TypeId::of::<Editor>() {
589 Some(self.editor.to_any())
590 } else {
591 None
592 }
593 }
594
595 fn breadcrumb_location(&self, _: &App) -> ToolbarItemLocation {
596 ToolbarItemLocation::PrimaryLeft
597 }
598
599 fn breadcrumbs(&self, theme: &theme::Theme, cx: &App) -> Option<Vec<BreadcrumbText>> {
600 self.editor.breadcrumbs(theme, cx)
601 }
602
603 fn added_to_workspace(
604 &mut self,
605 workspace: &mut Workspace,
606 window: &mut Window,
607 cx: &mut Context<Self>,
608 ) {
609 self.editor.update(cx, |editor, cx| {
610 editor.added_to_workspace(workspace, window, cx)
611 });
612 }
613}
614
615impl Render for ProjectDiff {
616 fn render(&mut self, _: &mut Window, cx: &mut Context<Self>) -> impl IntoElement {
617 let is_empty = self.multibuffer.read(cx).is_empty();
618
619 div()
620 .track_focus(&self.focus_handle)
621 .bg(cx.theme().colors().editor_background)
622 .flex()
623 .items_center()
624 .justify_center()
625 .size_full()
626 .when(is_empty, |el| {
627 el.child(Label::new("No uncommitted changes"))
628 })
629 .when(!is_empty, |el| el.child(self.editor.clone()))
630 }
631}
632
633impl SerializableItem for ProjectDiff {
634 fn serialized_item_kind() -> &'static str {
635 "ProjectDiff"
636 }
637
638 fn cleanup(
639 _: workspace::WorkspaceId,
640 _: Vec<workspace::ItemId>,
641 _: &mut Window,
642 _: &mut App,
643 ) -> Task<Result<()>> {
644 Task::ready(Ok(()))
645 }
646
647 fn deserialize(
648 _project: Entity<Project>,
649 workspace: WeakEntity<Workspace>,
650 _workspace_id: workspace::WorkspaceId,
651 _item_id: workspace::ItemId,
652 window: &mut Window,
653 cx: &mut App,
654 ) -> Task<Result<Entity<Self>>> {
655 window.spawn(cx, |mut cx| async move {
656 workspace.update_in(&mut cx, |workspace, window, cx| {
657 let workspace_handle = cx.entity();
658 cx.new(|cx| Self::new(workspace.project().clone(), workspace_handle, window, cx))
659 })
660 })
661 }
662
663 fn serialize(
664 &mut self,
665 _workspace: &mut Workspace,
666 _item_id: workspace::ItemId,
667 _closing: bool,
668 _window: &mut Window,
669 _cx: &mut Context<Self>,
670 ) -> Option<Task<Result<()>>> {
671 None
672 }
673
674 fn should_serialize(&self, _: &Self::Event) -> bool {
675 false
676 }
677}
678
679pub struct ProjectDiffToolbar {
680 project_diff: Option<WeakEntity<ProjectDiff>>,
681 workspace: WeakEntity<Workspace>,
682}
683
684impl ProjectDiffToolbar {
685 pub fn new(workspace: &Workspace, _: &mut Context<Self>) -> Self {
686 Self {
687 project_diff: None,
688 workspace: workspace.weak_handle(),
689 }
690 }
691
692 fn project_diff(&self, _: &App) -> Option<Entity<ProjectDiff>> {
693 self.project_diff.as_ref()?.upgrade()
694 }
695 fn dispatch_action(&self, action: &dyn Action, window: &mut Window, cx: &mut Context<Self>) {
696 if let Some(project_diff) = self.project_diff(cx) {
697 project_diff.focus_handle(cx).focus(window);
698 }
699 let action = action.boxed_clone();
700 cx.defer(move |cx| {
701 cx.dispatch_action(action.as_ref());
702 })
703 }
704 fn dispatch_panel_action(
705 &self,
706 action: &dyn Action,
707 window: &mut Window,
708 cx: &mut Context<Self>,
709 ) {
710 self.workspace
711 .read_with(cx, |workspace, cx| {
712 if let Some(panel) = workspace.panel::<GitPanel>(cx) {
713 panel.focus_handle(cx).focus(window)
714 }
715 })
716 .ok();
717 let action = action.boxed_clone();
718 cx.defer(move |cx| {
719 cx.dispatch_action(action.as_ref());
720 })
721 }
722}
723
724impl EventEmitter<ToolbarItemEvent> for ProjectDiffToolbar {}
725
726impl ToolbarItemView for ProjectDiffToolbar {
727 fn set_active_pane_item(
728 &mut self,
729 active_pane_item: Option<&dyn ItemHandle>,
730 _: &mut Window,
731 cx: &mut Context<Self>,
732 ) -> ToolbarItemLocation {
733 self.project_diff = active_pane_item
734 .and_then(|item| item.act_as::<ProjectDiff>(cx))
735 .map(|entity| entity.downgrade());
736 if self.project_diff.is_some() {
737 ToolbarItemLocation::PrimaryRight
738 } else {
739 ToolbarItemLocation::Hidden
740 }
741 }
742
743 fn pane_focus_update(
744 &mut self,
745 _pane_focused: bool,
746 _window: &mut Window,
747 _cx: &mut Context<Self>,
748 ) {
749 }
750}
751
752struct ButtonStates {
753 stage: bool,
754 unstage: bool,
755 prev_next: bool,
756 selection: bool,
757 stage_all: bool,
758 unstage_all: bool,
759 commit: bool,
760}
761
762impl Render for ProjectDiffToolbar {
763 fn render(&mut self, _: &mut Window, cx: &mut Context<Self>) -> impl IntoElement {
764 let Some(project_diff) = self.project_diff(cx) else {
765 return div();
766 };
767 let focus_handle = project_diff.focus_handle(cx);
768 let button_states = project_diff.read(cx).button_states(cx);
769
770 h_group_xl()
771 .my_neg_1()
772 .items_center()
773 .py_1()
774 .pl_2()
775 .pr_1()
776 .flex_wrap()
777 .justify_between()
778 .child(
779 h_group_sm()
780 .when(button_states.selection, |el| {
781 el.child(
782 Button::new("stage", "Toggle Staged")
783 .tooltip(Tooltip::for_action_title_in(
784 "Toggle Staged",
785 &ToggleStaged,
786 &focus_handle,
787 ))
788 .disabled(!button_states.stage && !button_states.unstage)
789 .on_click(cx.listener(|this, _, window, cx| {
790 this.dispatch_action(&ToggleStaged, window, cx)
791 })),
792 )
793 })
794 .when(!button_states.selection, |el| {
795 el.child(
796 Button::new("stage", "Stage")
797 .tooltip(Tooltip::for_action_title_in(
798 "Stage",
799 &StageAndNext,
800 &focus_handle,
801 ))
802 // don't actually disable the button so it's mashable
803 .color(if button_states.stage {
804 Color::Default
805 } else {
806 Color::Disabled
807 })
808 .on_click(cx.listener(|this, _, window, cx| {
809 this.dispatch_action(&StageAndNext, window, cx)
810 })),
811 )
812 .child(
813 Button::new("unstage", "Unstage")
814 .tooltip(Tooltip::for_action_title_in(
815 "Unstage",
816 &UnstageAndNext,
817 &focus_handle,
818 ))
819 .color(if button_states.unstage {
820 Color::Default
821 } else {
822 Color::Disabled
823 })
824 .on_click(cx.listener(|this, _, window, cx| {
825 this.dispatch_action(&UnstageAndNext, window, cx)
826 })),
827 )
828 }),
829 )
830 // n.b. the only reason these arrows are here is because we don't
831 // support "undo" for staging so we need a way to go back.
832 .child(
833 h_group_sm()
834 .child(
835 IconButton::new("up", IconName::ArrowUp)
836 .shape(ui::IconButtonShape::Square)
837 .tooltip(Tooltip::for_action_title_in(
838 "Go to previous hunk",
839 &GoToPrevHunk,
840 &focus_handle,
841 ))
842 .disabled(!button_states.prev_next)
843 .on_click(cx.listener(|this, _, window, cx| {
844 this.dispatch_action(&GoToPrevHunk, window, cx)
845 })),
846 )
847 .child(
848 IconButton::new("down", IconName::ArrowDown)
849 .shape(ui::IconButtonShape::Square)
850 .tooltip(Tooltip::for_action_title_in(
851 "Go to next hunk",
852 &GoToHunk,
853 &focus_handle,
854 ))
855 .disabled(!button_states.prev_next)
856 .on_click(cx.listener(|this, _, window, cx| {
857 this.dispatch_action(&GoToHunk, window, cx)
858 })),
859 ),
860 )
861 .child(vertical_divider())
862 .child(
863 h_group_sm()
864 .when(
865 button_states.unstage_all && !button_states.stage_all,
866 |el| {
867 el.child(Button::new("unstage-all", "Unstage All").on_click(
868 cx.listener(|this, _, window, cx| {
869 this.dispatch_panel_action(&UnstageAll, window, cx)
870 }),
871 ))
872 },
873 )
874 .when(
875 !button_states.unstage_all || button_states.stage_all,
876 |el| {
877 el.child(
878 // todo make it so that changing to say "Unstaged"
879 // doesn't change the position.
880 div().child(
881 Button::new("stage-all", "Stage All")
882 .disabled(!button_states.stage_all)
883 .on_click(cx.listener(|this, _, window, cx| {
884 this.dispatch_panel_action(&StageAll, window, cx)
885 })),
886 ),
887 )
888 },
889 )
890 .child(
891 Button::new("commit", "Commit")
892 .disabled(!button_states.commit)
893 .on_click(cx.listener(|this, _, window, cx| {
894 // todo this should open modal, not focus panel.
895 this.dispatch_action(&Commit, window, cx);
896 })),
897 ),
898 )
899 }
900}