feat(example): PaneItemExpander (Fixes #965)

bdlukaa · Nov 25, 2023 · 6db94a1 · 6db94a1
1 parent 2140eaf
commit 6db94a1
Showing 1 changed file with 37 additions and 8 deletions.
diff --git a/example/lib/main.dart b/example/lib/main.dart
@@ -332,21 +332,35 @@ class _MyHomePageState extends State<MyHomePage> with WindowListener {
     ),
     // TODO: Scrollbar, RatingBar
   ].map<NavigationPaneItem>((e) {
-    if (e is PaneItem) {
+    PaneItem buildPaneItem(PaneItem item) {
       return PaneItem(
-        key: e.key,
-        icon: e.icon,
-        title: e.title,
-        body: e.body,
+        key: item.key,
+        icon: item.icon,
+        title: item.title,
+        body: item.body,
         onTap: () {
-          final path = (e.key as ValueKey).value;
+          final path = (item.key as ValueKey).value;
           if (GoRouterState.of(context).uri.toString() != path) {
             context.go(path);
           }
-          e.onTap?.call();
+          item.onTap?.call();
         },
       );
     }
+
+    if (e is PaneItemExpander) {
+      return PaneItemExpander(
+        key: e.key,
+        icon: e.icon,
+        title: e.title,
+        body: e.body,
+        items: e.items.map((item) {
+          if (item is PaneItem) return buildPaneItem(item);
+          return item;
+        }).toList(),
+      );
+    }
+    if (e is PaneItem) return buildPaneItem(e);
     return e;
   }).toList();
   late final List<NavigationPaneItem> footerItems = [
@@ -546,7 +560,22 @@ class _MyHomePageState extends State<MyHomePage> with WindowListener {
             focusNode: searchFocusNode,
             controller: searchController,
             unfocusedColor: Colors.transparent,
-            items: originalItems.whereType<PaneItem>().map((item) {
+            // also need to include sub items from [PaneItemExpander] items
+            items: <PaneItem>[
+              ...originalItems
+                  .whereType<PaneItemExpander>()
+                  .expand<PaneItem>((item) {
+                return [
+                  item,
+                  ...item.items.whereType<PaneItem>(),
+                ];
+              }),
+              ...originalItems
+                  .where(
+                    (item) => item is PaneItem && item is! PaneItemExpander,
+                  )
+                  .cast<PaneItem>(),
+            ].map((item) {
               assert(item.title is Text);
               final text = (item.title as Text).data!;
               return AutoSuggestBoxItem(