Open symbol outline when clicking on editor breadcrumbs

crates/workspace/src/pane.rs

@@ -1603,6 +1603,10 @@ impl View for Pane {
     }
 
     fn focus_in(&mut self, focused: AnyViewHandle, cx: &mut ViewContext<Self>) {
+        self.toolbar.update(cx, |toolbar, cx| {
+            toolbar.pane_focus_update(true, cx);
+        });
+
         if let Some(active_item) = self.active_item() {
             if cx.is_self_focused() {
                 // Pane was focused directly. We need to either focus a view inside the active item,
@@ -1626,6 +1630,12 @@ impl View for Pane {
         }
     }
 
+    fn focus_out(&mut self, _: AnyViewHandle, cx: &mut ViewContext<Self>) {
+        self.toolbar.update(cx, |toolbar, cx| {
+            toolbar.pane_focus_update(false, cx);
+        });
+    }
+
     fn keymap_context(&self, _: &AppContext) -> KeymapContext {
         let mut keymap = Self::default_keymap_context();
         if self.docked.is_some() {

crates/workspace/src/toolbar.rs

@@ -20,6 +20,8 @@ pub trait ToolbarItemView: View {
     ) -> ToolbarItemLocation {
         current_location
     }
+
+    fn pane_focus_update(&mut self, _pane_focused: bool, _cx: &mut MutableAppContext) {}
 }
 
 trait ToolbarItemViewHandle {
@@ -30,6 +32,7 @@ trait ToolbarItemViewHandle {
         active_pane_item: Option<&dyn ItemHandle>,
         cx: &mut MutableAppContext,
     ) -> ToolbarItemLocation;
+    fn pane_focus_update(&mut self, pane_focused: bool, cx: &mut MutableAppContext);
 }
 
 #[derive(Copy, Clone, Debug, PartialEq)]
@@ -260,6 +263,12 @@ impl Toolbar {
         }
     }
 
+    pub fn pane_focus_update(&mut self, pane_focused: bool, cx: &mut MutableAppContext) {
+        for (toolbar_item, _) in self.items.iter_mut() {
+            toolbar_item.pane_focus_update(pane_focused, cx);
+        }
+    }
+
     pub fn item_of_type<T: ToolbarItemView>(&self) -> Option<ViewHandle<T>> {
         self.items
             .iter()
@@ -289,6 +298,10 @@ impl<T: ToolbarItemView> ToolbarItemViewHandle for ViewHandle<T> {
             this.set_active_pane_item(active_pane_item, cx)
         })
     }
+
+    fn pane_focus_update(&mut self, pane_focused: bool, cx: &mut MutableAppContext) {
+        self.update(cx, |this, cx| this.pane_focus_update(pane_focused, cx));
+    }
 }
 
 impl From<&dyn ToolbarItemViewHandle> for AnyViewHandle {