git_ui: Reset the project diff at the start when it is deployed again (#43579)

Marco Mihai Condrache created 1 day ago

Closes #26920

Release Notes:

- Clicking the 'changes' button now resets the diff at the beginning

---------

Signed-off-by: Marco Mihai Condrache <[e-mail]>

Change summary

crates/git_ui/src/project_diff.rs | 12 ++++++++++++
1 file changed, 12 insertions(+)

Detailed changes

crates/git_ui/src/project_diff.rs

@@ -156,6 +156,10 @@ impl ProjectDiff {
             .items_of_type::<Self>(cx)
             .find(|item| matches!(item.read(cx).diff_base(cx), DiffBase::Head));
         let project_diff = if let Some(existing) = existing {
+            existing.update(cx, |project_diff, cx| {
+                project_diff.move_to_beginning(window, cx);
+            });
+
             workspace.activate_item(&existing, true, true, window, cx);
             existing
         } else {
@@ -365,6 +369,14 @@ impl ProjectDiff {
         })
     }
 
+    fn move_to_beginning(&mut self, window: &mut Window, cx: &mut Context<Self>) {
+        self.editor.update(cx, |editor, cx| {
+            editor.primary_editor().update(cx, |editor, cx| {
+                editor.move_to_beginning(&Default::default(), window, cx);
+            });
+        });
+    }
+
     fn move_to_path(&mut self, path_key: PathKey, window: &mut Window, cx: &mut Context<Self>) {
         if let Some(position) = self.multibuffer.read(cx).location_for_path(&path_key, cx) {
             self.editor.update(cx, |editor, cx| {