c051b69e2a
Inspired by the review on #146182. This PR adds boundary feature to the drag gestures, including `MultiDragGestureRecognizer` and `DragGestureRecognizer`. The `GestureDetector` widget will also benefit from this.
78 lines
3.4 KiB
Dart
78 lines
3.4 KiB
Dart
// 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/material.dart';
|
|
import 'package:flutter_test/flutter_test.dart';
|
|
|
|
void main() {
|
|
testWidgets('test DragBoundary with useGlobalPosition', (WidgetTester tester) async {
|
|
final GlobalKey key = GlobalKey();
|
|
await tester.pumpWidget(
|
|
Container(
|
|
margin: const EdgeInsets.only(top: 100, left: 100),
|
|
alignment: Alignment.topLeft,
|
|
child: DragBoundary(
|
|
child: SizedBox(
|
|
key: key,
|
|
width: 100,
|
|
height: 100,
|
|
),
|
|
),
|
|
),
|
|
);
|
|
final DragBoundaryDelegate<Rect> boundary = DragBoundary.forRectOf(key.currentContext!);
|
|
expect(boundary, isNotNull);
|
|
expect(boundary.isWithinBoundary(const Rect.fromLTWH(50, 50, 20, 20)), isFalse);
|
|
expect(boundary.isWithinBoundary(const Rect.fromLTWH(100, 100, 20, 20)), isTrue);
|
|
expect(boundary.nearestPositionWithinBoundary(const Rect.fromLTWH(50, 50, 20, 20)), const Rect.fromLTWH(100, 100, 20, 20));
|
|
expect(boundary.nearestPositionWithinBoundary(const Rect.fromLTWH(150, 150, 20, 20)), const Rect.fromLTWH(150, 150, 20, 20));
|
|
});
|
|
|
|
testWidgets('test DragBoundary without useGlobalPosition', (WidgetTester tester) async {
|
|
final GlobalKey key = GlobalKey();
|
|
await tester.pumpWidget(
|
|
Container(
|
|
margin: const EdgeInsets.only(top: 100, left: 100),
|
|
alignment: Alignment.topLeft,
|
|
child: DragBoundary(
|
|
child: SizedBox(
|
|
key: key,
|
|
width: 100,
|
|
height: 100,
|
|
),
|
|
),
|
|
),
|
|
);
|
|
final DragBoundaryDelegate<Rect> boundary = DragBoundary.forRectOf(key.currentContext!, useGlobalPosition: false);
|
|
expect(boundary, isNotNull);
|
|
expect(boundary.isWithinBoundary(const Rect.fromLTWH(50, 50, 20, 20)), isTrue);
|
|
expect(boundary.isWithinBoundary(const Rect.fromLTWH(90, 90, 20, 20)), isFalse);
|
|
expect(boundary.nearestPositionWithinBoundary(const Rect.fromLTWH(50, 50, 20, 20)), const Rect.fromLTWH(50, 50, 20, 20));
|
|
expect(boundary.nearestPositionWithinBoundary(const Rect.fromLTWH(90, 90, 20, 20)), const Rect.fromLTWH(80, 80, 20, 20));
|
|
});
|
|
|
|
testWidgets('forRectOf should return a free boundary when no ancestor has a DragBoundary', (WidgetTester tester) async {
|
|
final GlobalKey key = GlobalKey();
|
|
await tester.pumpWidget(
|
|
Container(
|
|
margin: const EdgeInsets.only(top: 100, left: 100),
|
|
alignment: Alignment.topLeft,
|
|
child: SizedBox(
|
|
key: key,
|
|
width: 100,
|
|
height: 100,
|
|
),
|
|
),
|
|
);
|
|
final DragBoundaryDelegate<Rect> boundary = DragBoundary.forRectOf(key.currentContext!);
|
|
expect(boundary, isNotNull);
|
|
expect(boundary.isWithinBoundary(const Rect.fromLTWH(50, 50, 20, 20)), isTrue);
|
|
expect(boundary.isWithinBoundary(const Rect.fromLTWH(100, 100, 20, 20)), isTrue);
|
|
expect(boundary.isWithinBoundary(const Rect.fromLTWH(300, 300, 300, 300)), isTrue);
|
|
expect(boundary.nearestPositionWithinBoundary(const Rect.fromLTWH(50, 50, 20, 20)), const Rect.fromLTWH(50, 50, 20, 20));
|
|
expect(boundary.nearestPositionWithinBoundary(const Rect.fromLTWH(150, 150, 20, 20)), const Rect.fromLTWH(150, 150, 20, 20));
|
|
expect(boundary.nearestPositionWithinBoundary(const Rect.fromLTWH(300, 300, 300, 300)), const Rect.fromLTWH(300, 300, 300, 300));
|
|
});
|
|
}
|