Fix PlatformMenuItems with onSelectedIntent are never enabled (#121885)

Fix PlatformMenuItems with onSelectedIntent are never enabled

packages/flutter/lib/src/widgets/platform_menu_bar.dart

@@ -738,7 +738,8 @@ class PlatformMenuItem with Diagnosticable {
   /// An optional callback that is called when this [PlatformMenuItem] is
   /// selected.
   ///
-  /// If unset, this menu item will be disabled.
+  /// At most one of [onSelected] and [onSelectedIntent] may be set. If neither
+  /// field is set, this menu item will be disabled.
   final VoidCallback? onSelected;
 
   /// Returns a callback, if any, to be invoked if the platform menu receives a
@@ -760,7 +761,8 @@ class PlatformMenuItem with Diagnosticable {
   /// An optional intent that is invoked when this [PlatformMenuItem] is
   /// selected.
   ///
-  /// If unset, this menu item will be disabled.
+  /// At most one of [onSelected] and [onSelectedIntent] may be set. If neither
+  /// field is set, this menu item will be disabled.
   final Intent? onSelectedIntent;
 
   /// Returns all descendant [PlatformMenuItem]s of this item.
@@ -805,7 +807,7 @@ class PlatformMenuItem with Diagnosticable {
     return <String, Object?>{
       _kIdKey: getId(item),
       _kLabelKey: item.label,
-      _kEnabledKey: item.onSelected != null,
+      _kEnabledKey: item.onSelected != null || item.onSelectedIntent != null,
       if (shortcut != null)...shortcut.serializeForMenu().toChannelRepresentation(),
     };
   }

packages/flutter/test/widgets/platform_menu_bar_test.dart

@@ -15,12 +15,12 @@ void main() {
   late FakeMenuChannel fakeMenuChannel;
   late PlatformMenuDelegate originalDelegate;
   late DefaultPlatformMenuDelegate delegate;
-  final List<String> activated = <String>[];
+  final List<String> selected = <String>[];
   final List<String> opened = <String>[];
   final List<String> closed = <String>[];
 
-  void onActivate(String item) {
-    activated.add(item);
+  void onSelected(String item) {
+    selected.add(item);
   }
 
   void onOpen(String item) {
@@ -36,7 +36,7 @@ void main() {
     delegate = DefaultPlatformMenuDelegate(channel: fakeMenuChannel);
     originalDelegate = WidgetsBinding.instance.platformMenuDelegate;
     WidgetsBinding.instance.platformMenuDelegate = delegate;
-    activated.clear();
+    selected.clear();
     opened.clear();
     closed.clear();
   });
@@ -46,117 +46,69 @@ void main() {
   });
 
   group('PlatformMenuBar', () {
-    testWidgets('basic menu structure is transmitted to platform', (WidgetTester tester) async {
-      await tester.pumpWidget(
-        MaterialApp(
-          home: Material(
-            child: PlatformMenuBar(
-              menus: createTestMenus(
-                onActivate: onActivate,
-                onOpen: onOpen,
-                onClose: onClose,
-                shortcuts: <String, MenuSerializableShortcut>{
-                  subSubMenu10[0]: const SingleActivator(LogicalKeyboardKey.keyA, control: true),
-                  subSubMenu10[1]: const SingleActivator(LogicalKeyboardKey.keyB, shift: true),
-                  subSubMenu10[2]: const SingleActivator(LogicalKeyboardKey.keyC, alt: true),
-                  subSubMenu10[3]: const SingleActivator(LogicalKeyboardKey.keyD, meta: true),
-                },
+    group('basic menu structure is transmitted to platform', () {
+      testWidgets('using onSelected', (WidgetTester tester) async {
+        await tester.pumpWidget(
+          MaterialApp(
+            home: Material(
+              child: PlatformMenuBar(
+                menus: createTestMenus(
+                  onSelected: onSelected,
+                  onOpen: onOpen,
+                  onClose: onClose,
+                  shortcuts: <String, MenuSerializableShortcut>{
+                    subSubMenu10[0]: const SingleActivator(LogicalKeyboardKey.keyA, control: true),
+                    subSubMenu10[1]: const SingleActivator(LogicalKeyboardKey.keyB, shift: true),
+                    subSubMenu10[2]: const SingleActivator(LogicalKeyboardKey.keyC, alt: true),
+                    subSubMenu10[3]: const SingleActivator(LogicalKeyboardKey.keyD, meta: true),
+                  },
+                ),
+                child: const Center(child: Text('Body')),
               ),
-              child: const Center(child: Text('Body')),
             ),
           ),
-        ),
-      );
+        );
 
-      expect(fakeMenuChannel.outgoingCalls.last.method, equals('Menu.setMenus'));
-      expect(
-        fakeMenuChannel.outgoingCalls.last.arguments,
-        equals(<String, Object?>{
-          '0': <Map<String, Object?>>[
-            <String, Object?>{
-              'id': 2,
-              'label': 'Menu 0',
-              'enabled': true,
-              'children': <Map<String, Object?>>[
-                <String, Object?>{
-                  'id': 1,
-                  'label': 'Sub Menu 00',
-                  'enabled': true,
-                },
-              ],
-            },
-            <String, Object?>{
-              'id': 18,
-              'label': 'Menu 1',
-              'enabled': true,
-              'children': <Map<String, Object?>>[
-                <String, Object?>{
-                  'id': 4,
-                  'label': 'Sub Menu 10',
-                  'enabled': true,
-                },
-                <String, Object?>{'id': 5, 'isDivider': true},
-                <String, Object?>{
-                  'id': 16,
-                  'label': 'Sub Menu 11',
-                  'enabled': true,
-                  'children': <Map<String, Object?>>[
-                    <String, Object?>{
-                      'id': 7,
-                      'label': 'Sub Sub Menu 110',
-                      'enabled': true,
-                      'shortcutTrigger': 97,
-                      'shortcutModifiers': 8,
-                    },
-                    <String, Object?>{'id': 8, 'isDivider': true},
-                    <String, Object?>{
-                      'id': 10,
-                      'label': 'Sub Sub Menu 111',
-                      'enabled': true,
-                      'shortcutTrigger': 98,
-                      'shortcutModifiers': 2,
-                    },
-                    <String, Object?>{'id': 11, 'isDivider': true},
-                    <String, Object?>{
-                      'id': 12,
-                      'label': 'Sub Sub Menu 112',
-                      'enabled': true,
-                      'shortcutTrigger': 99,
-                      'shortcutModifiers': 4,
-                    },
-                    <String, Object?>{'id': 13, 'isDivider': true},
-                    <String, Object?>{
-                      'id': 14,
-                      'label': 'Sub Sub Menu 113',
-                      'enabled': true,
-                      'shortcutTrigger': 100,
-                      'shortcutModifiers': 1,
-                    },
-                  ],
-                },
-                <String, Object?>{
-                  'id': 17,
-                  'label': 'Sub Menu 12',
-                  'enabled': true,
-                },
-              ],
-            },
-            <String, Object?>{
-              'id': 20,
-              'label': 'Menu 2',
-              'enabled': true,
-              'children': <Map<String, Object?>>[
-                <String, Object?>{
-                  'id': 19,
-                  'label': 'Sub Menu 20',
-                  'enabled': false,
-                },
-              ],
-            },
-            <String, Object?>{'id': 21, 'label': 'Menu 3', 'enabled': false, 'children': <Map<String, Object?>>[]},
-          ],
-        }),
-      );
+        expect(
+          fakeMenuChannel.outgoingCalls.last.method,
+          equals('Menu.setMenus'),
+        );
+        expect(
+          fakeMenuChannel.outgoingCalls.last.arguments,
+          equals(expectedStructure),
+        );
+      });
+      testWidgets('using onSelectedIntent', (WidgetTester tester) async {
+        await tester.pumpWidget(
+          MaterialApp(
+            home: Material(
+              child: PlatformMenuBar(
+                menus: createTestMenus(
+                  onSelectedIntent: const DoNothingIntent(),
+                  onOpen: onOpen,
+                  onClose: onClose,
+                  shortcuts: <String, MenuSerializableShortcut>{
+                    subSubMenu10[0]: const SingleActivator(LogicalKeyboardKey.keyA, control: true),
+                    subSubMenu10[1]: const SingleActivator(LogicalKeyboardKey.keyB, shift: true),
+                    subSubMenu10[2]: const SingleActivator(LogicalKeyboardKey.keyC, alt: true),
+                    subSubMenu10[3]: const SingleActivator(LogicalKeyboardKey.keyD, meta: true),
+                  },
+                ),
+                child: const Center(child: Text('Body')),
+              ),
+            ),
+          ),
+        );
+
+        expect(
+          fakeMenuChannel.outgoingCalls.last.method,
+          equals('Menu.setMenus'),
+        );
+        expect(
+          fakeMenuChannel.outgoingCalls.last.arguments,
+          equals(expectedStructure),
+        );
+      });
     });
     testWidgets('asserts when more than one has locked the delegate', (WidgetTester tester) async {
       await tester.pumpWidget(
@@ -287,7 +239,8 @@ const List<String> subMenu2 = <String>[
 ];
 
 List<PlatformMenuItem> createTestMenus({
-  void Function(String)? onActivate,
+  void Function(String)? onSelected,
+  Intent? onSelectedIntent,
   void Function(String)? onOpen,
   void Function(String)? onClose,
   Map<String, MenuSerializableShortcut> shortcuts = const <String, MenuSerializableShortcut>{},
@@ -301,7 +254,8 @@ List<PlatformMenuItem> createTestMenus({
       menus: <PlatformMenuItem>[
         PlatformMenuItem(
           label: subMenu0[0],
-          onSelected: onActivate != null ? () => onActivate(subMenu0[0]) : null,
+          onSelected: onSelected != null ? () => onSelected(subMenu0[0]) : null,
+          onSelectedIntent: onSelectedIntent,
           shortcut: shortcuts[subMenu0[0]],
         ),
       ],
@@ -315,7 +269,8 @@ List<PlatformMenuItem> createTestMenus({
           members: <PlatformMenuItem>[
             PlatformMenuItem(
               label: subMenu1[0],
-              onSelected: onActivate != null ? () => onActivate(subMenu1[0]) : null,
+              onSelected: onSelected != null ? () => onSelected(subMenu0[0]) : null,
+              onSelectedIntent: onSelectedIntent,
               shortcut: shortcuts[subMenu1[0]],
             ),
           ],
@@ -329,7 +284,8 @@ List<PlatformMenuItem> createTestMenus({
               members: <PlatformMenuItem>[
                 PlatformMenuItem(
                   label: subSubMenu10[0],
-                  onSelected: onActivate != null ? () => onActivate(subSubMenu10[0]) : null,
+                  onSelected: onSelected != null ? () => onSelected(subSubMenu10[0]) : null,
+                  onSelectedIntent: onSelectedIntent,
                   shortcut: shortcuts[subSubMenu10[0]],
                 ),
               ],
@@ -338,21 +294,24 @@ List<PlatformMenuItem> createTestMenus({
               members: <PlatformMenuItem>[
                 PlatformMenuItem(
                   label: subSubMenu10[1],
-                  onSelected: onActivate != null ? () => onActivate(subSubMenu10[1]) : null,
+                  onSelected: onSelected != null ? () => onSelected(subSubMenu10[1]) : null,
+                  onSelectedIntent: onSelectedIntent,
                   shortcut: shortcuts[subSubMenu10[1]],
                 ),
               ],
             ),
             PlatformMenuItem(
               label: subSubMenu10[2],
-              onSelected: onActivate != null ? () => onActivate(subSubMenu10[2]) : null,
+              onSelected: onSelected != null ? () => onSelected(subSubMenu10[2]) : null,
+              onSelectedIntent: onSelectedIntent,
               shortcut: shortcuts[subSubMenu10[2]],
             ),
             PlatformMenuItemGroup(
               members: <PlatformMenuItem>[
                 PlatformMenuItem(
                   label: subSubMenu10[3],
-                  onSelected: onActivate != null ? () => onActivate(subSubMenu10[3]) : null,
+                  onSelected: onSelected != null ? () => onSelected(subSubMenu10[3]) : null,
+                  onSelectedIntent: onSelectedIntent,
                   shortcut: shortcuts[subSubMenu10[3]],
                 ),
               ],
@@ -361,7 +320,8 @@ List<PlatformMenuItem> createTestMenus({
         ),
         PlatformMenuItem(
           label: subMenu1[2],
-          onSelected: onActivate != null ? () => onActivate(subMenu1[2]) : null,
+          onSelected: onSelected != null ? () => onSelected(subMenu1[2]) : null,
+          onSelectedIntent: onSelectedIntent,
           shortcut: shortcuts[subMenu1[2]],
         ),
       ],
@@ -389,6 +349,92 @@ List<PlatformMenuItem> createTestMenus({
   return result;
 }
 
+const Map<String, Object?> expectedStructure = <String, Object?>{
+  '0': <Map<String, Object?>>[
+    <String, Object?>{
+      'id': 2,
+      'label': 'Menu 0',
+      'enabled': true,
+      'children': <Map<String, Object?>>[
+        <String, Object?>{
+          'id': 1,
+          'label': 'Sub Menu 00',
+          'enabled': true,
+        },
+      ],
+    },
+    <String, Object?>{
+      'id': 18,
+      'label': 'Menu 1',
+      'enabled': true,
+      'children': <Map<String, Object?>>[
+        <String, Object?>{
+          'id': 4,
+          'label': 'Sub Menu 10',
+          'enabled': true,
+        },
+        <String, Object?>{'id': 5, 'isDivider': true},
+        <String, Object?>{
+          'id': 16,
+          'label': 'Sub Menu 11',
+          'enabled': true,
+          'children': <Map<String, Object?>>[
+            <String, Object?>{
+              'id': 7,
+              'label': 'Sub Sub Menu 110',
+              'enabled': true,
+              'shortcutTrigger': 97,
+              'shortcutModifiers': 8,
+            },
+            <String, Object?>{'id': 8, 'isDivider': true},
+            <String, Object?>{
+              'id': 10,
+              'label': 'Sub Sub Menu 111',
+              'enabled': true,
+              'shortcutTrigger': 98,
+              'shortcutModifiers': 2,
+            },
+            <String, Object?>{'id': 11, 'isDivider': true},
+            <String, Object?>{
+              'id': 12,
+              'label': 'Sub Sub Menu 112',
+              'enabled': true,
+              'shortcutTrigger': 99,
+              'shortcutModifiers': 4,
+            },
+            <String, Object?>{'id': 13, 'isDivider': true},
+            <String, Object?>{
+              'id': 14,
+              'label': 'Sub Sub Menu 113',
+              'enabled': true,
+              'shortcutTrigger': 100,
+              'shortcutModifiers': 1,
+            },
+          ],
+        },
+        <String, Object?>{
+          'id': 17,
+          'label': 'Sub Menu 12',
+          'enabled': true,
+        },
+      ],
+    },
+    <String, Object?>{
+      'id': 20,
+      'label': 'Menu 2',
+      'enabled': true,
+      'children': <Map<String, Object?>>[
+        <String, Object?>{
+          'id': 19,
+          'label': 'Sub Menu 20',
+          'enabled': false,
+        },
+      ],
+    },
+    <String, Object?>{'id': 21, 'label': 'Menu 3', 'enabled': false, 'children': <Map<String, Object?>>[]},
+  ],
+};
+
 class FakeMenuChannel implements MethodChannel {
   FakeMenuChannel(this.outgoing);