blob: 9a57757975895c5a494f9e1ea2cd4db5907727e7 [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 'dart:ui';
import 'package:flutter/rendering.dart';
import 'package:flutter_test/flutter_test.dart';
void main() {
final RendererBinding binding = RenderingFlutterBinding.ensureInitialized();
test('Adding/removing renderviews updates renderViews getter', () {
final FlutterView flutterView = FakeFlutterView();
final RenderView view = RenderView(view: flutterView);
expect(binding.renderViews, isEmpty);
binding.addRenderView(view);
expect(binding.renderViews, contains(view));
expect(view.configuration.devicePixelRatio, flutterView.devicePixelRatio);
expect(view.configuration.size, flutterView.physicalSize / flutterView.devicePixelRatio);
binding.removeRenderView(view);
expect(binding.renderViews, isEmpty);
});
test('illegal add/remove renderviews', () {
final FlutterView flutterView = FakeFlutterView();
final RenderView view1 = RenderView(view: flutterView);
final RenderView view2 = RenderView(view: flutterView);
final RenderView view3 = RenderView(view: FakeFlutterView(viewId: 200));
expect(binding.renderViews, isEmpty);
binding.addRenderView(view1);
expect(binding.renderViews, contains(view1));
expect(() => binding.addRenderView(view1), throwsAssertionError);
expect(() => binding.addRenderView(view2), throwsAssertionError);
expect(() => binding.removeRenderView(view2), throwsAssertionError);
expect(() => binding.removeRenderView(view3), throwsAssertionError);
expect(binding.renderViews, contains(view1));
binding.removeRenderView(view1);
expect(binding.renderViews, isEmpty);
expect(() => binding.removeRenderView(view1), throwsAssertionError);
expect(() => binding.removeRenderView(view2), throwsAssertionError);
});
test('changing metrics updates configuration', () {
final FakeFlutterView flutterView = FakeFlutterView();
final RenderView view = RenderView(view: flutterView);
binding.addRenderView(view);
expect(view.configuration.devicePixelRatio, 2.5);
expect(view.configuration.size, const Size(160.0, 240.0));
flutterView.devicePixelRatio = 3.0;
flutterView.physicalSize = const Size(300, 300);
binding.handleMetricsChanged();
expect(view.configuration.devicePixelRatio, 3.0);
expect(view.configuration.size, const Size(100.0, 100.0));
binding.removeRenderView(view);
});
test('semantics actions are performed on the right view', () {
final FakeFlutterView flutterView1 = FakeFlutterView(viewId: 1);
final FakeFlutterView flutterView2 = FakeFlutterView(viewId: 2);
final RenderView renderView1 = RenderView(view: flutterView1);
final RenderView renderView2 = RenderView(view: flutterView2);
final PipelineOwnerSpy owner1 = PipelineOwnerSpy()
..rootNode = renderView1;
final PipelineOwnerSpy owner2 = PipelineOwnerSpy()
..rootNode = renderView2;
binding.addRenderView(renderView1);
binding.addRenderView(renderView2);
binding.performSemanticsAction(
const SemanticsActionEvent(type: SemanticsAction.copy, viewId: 1, nodeId: 11),
);
expect(owner1.semanticsOwner.performedActions.single, (11, SemanticsAction.copy, null));
expect(owner2.semanticsOwner.performedActions, isEmpty);
owner1.semanticsOwner.performedActions.clear();
binding.performSemanticsAction(
const SemanticsActionEvent(type: SemanticsAction.tap, viewId: 2, nodeId: 22),
);
expect(owner1.semanticsOwner.performedActions, isEmpty);
expect(owner2.semanticsOwner.performedActions.single, (22, SemanticsAction.tap, null));
owner2.semanticsOwner.performedActions.clear();
binding.performSemanticsAction(
const SemanticsActionEvent(type: SemanticsAction.tap, viewId: 3, nodeId: 22),
);
expect(owner1.semanticsOwner.performedActions, isEmpty);
expect(owner2.semanticsOwner.performedActions, isEmpty);
binding.removeRenderView(renderView1);
binding.removeRenderView(renderView2);
});
test('all registered renderviews are asked to composite frame', () {
final FakeFlutterView flutterView1 = FakeFlutterView(viewId: 1);
final FakeFlutterView flutterView2 = FakeFlutterView(viewId: 2);
final RenderView renderView1 = RenderView(view: flutterView1);
final RenderView renderView2 = RenderView(view: flutterView2);
final PipelineOwner owner1 = PipelineOwner()..rootNode = renderView1;
final PipelineOwner owner2 = PipelineOwner()..rootNode = renderView2;
binding.rootPipelineOwner.adoptChild(owner1);
binding.rootPipelineOwner.adoptChild(owner2);
binding.addRenderView(renderView1);
binding.addRenderView(renderView2);
renderView1.prepareInitialFrame();
renderView2.prepareInitialFrame();
expect(flutterView1.renderedScenes, isEmpty);
expect(flutterView2.renderedScenes, isEmpty);
binding.handleBeginFrame(Duration.zero);
binding.handleDrawFrame();
expect(flutterView1.renderedScenes, hasLength(1));
expect(flutterView2.renderedScenes, hasLength(1));
binding.removeRenderView(renderView1);
binding.handleBeginFrame(Duration.zero);
binding.handleDrawFrame();
expect(flutterView1.renderedScenes, hasLength(1));
expect(flutterView2.renderedScenes, hasLength(2));
binding.removeRenderView(renderView2);
binding.handleBeginFrame(Duration.zero);
binding.handleDrawFrame();
expect(flutterView1.renderedScenes, hasLength(1));
expect(flutterView2.renderedScenes, hasLength(2));
});
test('hit-testing reaches the right view', () {
final FakeFlutterView flutterView1 = FakeFlutterView(viewId: 1);
final FakeFlutterView flutterView2 = FakeFlutterView(viewId: 2);
final RenderView renderView1 = RenderView(view: flutterView1);
final RenderView renderView2 = RenderView(view: flutterView2);
binding.addRenderView(renderView1);
binding.addRenderView(renderView2);
HitTestResult result = HitTestResult();
binding.hitTestInView(result, Offset.zero, 1);
expect(result.path, hasLength(2));
expect(result.path.first.target, renderView1);
expect(result.path.last.target, binding);
result = HitTestResult();
binding.hitTestInView(result, Offset.zero, 2);
expect(result.path, hasLength(2));
expect(result.path.first.target, renderView2);
expect(result.path.last.target, binding);
result = HitTestResult();
binding.hitTestInView(result, Offset.zero, 3);
expect(result.path.single.target, binding);
binding.removeRenderView(renderView1);
binding.removeRenderView(renderView2);
});
}
class FakeFlutterView extends Fake implements FlutterView {
FakeFlutterView({
this.viewId = 100,
this.devicePixelRatio = 2.5,
this.physicalSize = const Size(400,600),
this.padding = FakeViewPadding.zero,
});
@override
final int viewId;
@override
double devicePixelRatio;
@override
Size physicalSize;
@override
ViewPadding padding;
List<Scene> renderedScenes = <Scene>[];
@override
void render(Scene scene) {
renderedScenes.add(scene);
}
}
class PipelineOwnerSpy extends PipelineOwner {
@override
final SemanticsOwnerSpy semanticsOwner = SemanticsOwnerSpy();
}
class SemanticsOwnerSpy extends Fake implements SemanticsOwner {
final List<(int, SemanticsAction, Object?)> performedActions = <(int, SemanticsAction, Object?)>[];
@override
void performAction(int id, SemanticsAction action, [ Object? args ]) {
performedActions.add((id, action, args));
}
}