Merge pull request #23301 from carnageX/master

feat: Add option for SidebarSubmenuItem to have sub menus expanded by default

.changeset/rare-fireants-tickle.md

@@ -0,0 +1,5 @@
+---
+'@backstage/core-components': patch
+---
+
+Added optional `initialShowDropDown` prop to `SidebarSubmenuItem` to internally manage the initial display state of the dropdown items.

packages/core-components/api-report.md

@@ -1128,6 +1128,7 @@ export type SidebarSubmenuItemProps = {
   icon?: IconComponent;
   dropdownItems?: SidebarSubmenuItemDropdownItem[];
   exact?: boolean;
+  initialShowDropdown?: boolean;
 };
 
 // @public

packages/core-components/src/layout/Sidebar/SidebarSubmenuItem.tsx

@@ -131,6 +131,7 @@ export type SidebarSubmenuItemProps = {
   icon?: IconComponent;
   dropdownItems?: SidebarSubmenuItemDropdownItem[];
   exact?: boolean;
+  initialShowDropdown?: boolean;
 };
 
 /**
@@ -149,7 +150,9 @@ export const SidebarSubmenuItem = (props: SidebarSubmenuItemProps) => {
   const currentLocation = useLocation();
   let isActive = isLocationMatch(currentLocation, toLocation, exact);
 
-  const [showDropDown, setShowDropDown] = useState(false);
+  const [showDropDown, setShowDropDown] = useState(
+    props.initialShowDropdown ?? false,
+  );
   const handleClickDropdown = () => {
     setShowDropDown(!showDropDown);
   };