blob: 5ddf736a40cdf503cdf04af4a4646b49ab91e12a [file] [log] [blame]
// Copyright 2014 The Flutter Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
import 'package:flutter/gestures.dart';
import 'package:flutter/rendering.dart';
import 'package:flutter/widgets.dart';
import 'package:flutter_test/flutter_test.dart';
void main() {
testWidgets('toString control test', (WidgetTester tester) async {
await tester.pumpWidget(const Center(child: Text('Hello', textDirection: TextDirection.ltr)));
final HitTestResult result = tester.hitTestOnBinding(Offset.zero);
expect(result, hasOneLineDescription);
expect(result.path.first, hasOneLineDescription);
});
testWidgets('A mouse click should only cause one hit test', (WidgetTester tester) async {
int hitCount = 0;
await tester.pumpWidget(
_HitTestCounter(
onHitTestCallback: () { hitCount += 1; },
child: Container(),
),
);
final TestGesture gesture =
await tester.startGesture(tester.getCenter(find.byType(_HitTestCounter)), kind: PointerDeviceKind.mouse);
addTearDown(gesture.removePointer);
await gesture.up();
expect(hitCount, 1);
});
testWidgets('Non-mouse events should not cause movement hit tests', (WidgetTester tester) async {
int hitCount = 0;
await tester.pumpWidget(
_HitTestCounter(
onHitTestCallback: () { hitCount += 1; },
child: Container(),
),
);
final TestGesture gesture =
await tester.startGesture(tester.getCenter(find.byType(_HitTestCounter)));
await gesture.moveBy(const Offset(1, 1));
await gesture.up();
expect(hitCount, 1);
});
}
// The [_HitTestCounter] invokes [onHitTestCallback] every time
// [hitTestChildren] is called.
class _HitTestCounter extends SingleChildRenderObjectWidget {
const _HitTestCounter({
Key? key,
required Widget child,
required this.onHitTestCallback,
}) : super(key: key, child: child);
final VoidCallback? onHitTestCallback;
@override
_RenderHitTestCounter createRenderObject(BuildContext context) {
return _RenderHitTestCounter()
.._onHitTestCallback = onHitTestCallback;
}
@override
void updateRenderObject(
BuildContext context,
_RenderHitTestCounter renderObject,
) {
renderObject._onHitTestCallback = onHitTestCallback;
}
}
class _RenderHitTestCounter extends RenderProxyBox {
VoidCallback? _onHitTestCallback;
@override
bool hitTestChildren(BoxHitTestResult result, {required Offset position}) {
_onHitTestCallback?.call();
return super.hitTestChildren(result, position: position);
}
}