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// 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/material.dart';
import 'package:flutter/rendering.dart';
import 'package:flutter_test/flutter_test.dart';
void main() {
setUp(() => _GestureBindingSpy());
test('attach and detach correctly handle gesture', () {
final TextSelectionDelegate delegate = FakeEditableTextState();
final RenderEditable editable = RenderEditable(
backgroundCursorColor: Colors.grey,
selectionColor: Colors.black,
textDirection: TextDirection.ltr,
cursorColor: Colors.red,
offset: ViewportOffset.zero(),
textSelectionDelegate: delegate,
text: const TextSpan(
text: 'test',
style: TextStyle(
height: 1.0, fontSize: 10.0, fontFamily: 'Ahem',
),
),
startHandleLayerLink: LayerLink(),
endHandleLayerLink: LayerLink(),
selection: const TextSelection(
baseOffset: 0,
extentOffset: 3,
affinity: TextAffinity.upstream,
),
);
editable.layout(BoxConstraints.loose(const Size(1000.0, 1000.0)));
final PipelineOwner owner = PipelineOwner(onNeedVisualUpdate: () { });
final _PointerRouterSpy spy = GestureBinding.instance.pointerRouter as _PointerRouterSpy;
editable.attach(owner);
// This should register pointer into GestureBinding.instance.pointerRouter.
editable.handleEvent(const PointerDownEvent(), BoxHitTestEntry(editable, const Offset(10,10)));
GestureBinding.instance.pointerRouter.route(const PointerDownEvent());
expect(spy.routeCount, greaterThan(0));
editable.detach();
expect(spy.routeCount, 0);
});
}
class _GestureBindingSpy extends AutomatedTestWidgetsFlutterBinding {
final PointerRouter _testPointerRouter = _PointerRouterSpy();
@override
PointerRouter get pointerRouter => _testPointerRouter;
}
class FakeEditableTextState extends Fake implements TextSelectionDelegate { }
class _PointerRouterSpy extends PointerRouter {
int routeCount = 0;
@override
void addRoute(int pointer, PointerRoute route, [Matrix4? transform]) {
super.addRoute(pointer, route, transform);
routeCount++;
}
@override
void removeRoute(int pointer, PointerRoute route) {
super.removeRoute(pointer, route);
routeCount--;
}
}