Add hitTestBehavior and rootOverlay to LongPressDraggable constructor… (#146386)

Passes through these two Draggable parameters so that they're usable in LongPressDraggable.

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

@@ -414,6 +414,8 @@ class LongPressDraggable<T extends Object> extends Draggable<T> {
     super.ignoringFeedbackPointer,
     this.delay = kLongPressTimeout,
     super.allowedButtonsFilter,
+    super.hitTestBehavior,
+    super.rootOverlay,
   });
 
   /// Whether haptic feedback should be triggered on drag start.

packages/flutter/test/widgets/draggable_test.dart

@@ -3101,6 +3101,92 @@ void main() {
       );
     });
 
+  testWidgets('Drag feedback is put on root overlay with [rootOverlay] flag', (WidgetTester tester) async {
+    final GlobalKey<NavigatorState> rootNavigatorKey = GlobalKey<NavigatorState>();
+    final GlobalKey<NavigatorState> childNavigatorKey = GlobalKey<NavigatorState>();
+    // Create a [MaterialApp], with a nested [Navigator], which has the
+    // [Draggable].
+    await tester.pumpWidget(MaterialApp(
+      navigatorKey: rootNavigatorKey,
+      home: Column(
+        children: <Widget>[
+          SizedBox(
+            height: 200.0,
+            child: Navigator(
+              key: childNavigatorKey,
+              onGenerateRoute: (RouteSettings settings) {
+                if (settings.name == '/') {
+                  return MaterialPageRoute<void>(
+                    settings: settings,
+                    builder: (BuildContext context) => const LongPressDraggable<int>(
+                      data: 1,
+                      feedback: Text('Dragging'),
+                      rootOverlay: true,
+                      child: Text('Source'),
+                    ),
+                  );
+                }
+                throw UnsupportedError('Unsupported route: $settings');
+              },
+            ),
+          ),
+          DragTarget<int>(
+            builder: (BuildContext context, List<int?> data, List<dynamic> rejects) {
+              return const SizedBox(
+                  height: 300.0, child: Center(child: Text('Target 1')),
+              );
+            },
+          ),
+        ],
+      ),
+    ));
+
+    final Offset firstLocation = tester.getCenter(find.text('Source'));
+    final TestGesture gesture =
+        await tester.startGesture(firstLocation, pointer: 7);
+    await tester.pump(kLongPressTimeout);
+
+    final Offset secondLocation = tester.getCenter(find.text('Target 1'));
+    await gesture.moveTo(secondLocation);
+    await tester.pump();
+
+    // Expect that the feedback widget is a descendant of the root overlay,
+    // but not a descendant of the child overlay.
+    expect(
+      find.descendant(
+        of: find.byType(Overlay).first,
+        matching: find.text('Dragging'),
+      ),
+      findsOneWidget,
+    );
+    expect(
+      find.descendant(
+        of: find.byType(Overlay).last,
+        matching: find.text('Dragging'),
+      ),
+      findsNothing,
+    );
+  });
+
+  testWidgets('configurable DragTarget hit test behavior', (WidgetTester tester) async {
+    const HitTestBehavior hitTestBehavior = HitTestBehavior.opaque;
+
+    await tester.pumpWidget(
+      const MaterialApp(
+        home: Column(
+          children: <Widget>[
+            LongPressDraggable<int>(
+              hitTestBehavior: hitTestBehavior,
+              feedback: SizedBox(),
+              child: SizedBox(),
+            ),
+          ],
+        ),
+      ),
+    );
+    expect(tester.widget<Listener>(find.descendant(of: find.byType(Column), matching: find.byType(Listener))).behavior, hitTestBehavior);
+  });
+
   // Regression test for https://github.com/flutter/flutter/issues/72483
   testWidgets('Drag and drop - DragTarget<Object> can accept Draggable<int> data', (WidgetTester tester) async {
     final List<Object> accepted = <Object>[];