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This auto-formats all *.dart files in the repository outside of the `engine` subdirectory and enforces that these files stay formatted with a presubmit check. **Reviewers:** Please carefully review all the commits except for the one titled "formatted". The "formatted" commit was auto-generated by running `dev/tools/format.sh -a -f`. The other commits were hand-crafted to prepare the repo for the formatting change. I recommend reviewing the commits one-by-one via the "Commits" tab and avoiding Github's "Files changed" tab as it will likely slow down your browser because of the size of this PR. --------- Co-authored-by: Kate Lovett <katelovett@google.com> Co-authored-by: LongCatIsLooong <31859944+LongCatIsLooong@users.noreply.github.com>
110 lines
3.9 KiB
Dart
110 lines
3.9 KiB
Dart
// Copyright 2014 The Flutter Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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import 'package:flutter/rendering.dart';
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import 'package:flutter_test/flutter_test.dart';
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import 'rendering_tester.dart';
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class TestLayout {
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TestLayout() {
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// incoming constraints are tight 800x600
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root = RenderPositionedBox(
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child: RenderConstrainedBox(
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additionalConstraints: const BoxConstraints.tightFor(width: 800.0),
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child: RenderCustomPaint(
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painter: TestCallbackPainter(
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onPaint: () {
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painted = true;
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},
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),
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child:
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child = RenderConstrainedBox(
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additionalConstraints: const BoxConstraints.tightFor(height: 10.0, width: 10.0),
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),
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),
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),
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);
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}
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late RenderBox root;
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late RenderBox child;
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bool painted = false;
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}
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void main() {
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TestRenderingFlutterBinding.ensureInitialized();
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final ViewConfiguration testConfiguration = ViewConfiguration(
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logicalConstraints: BoxConstraints.tight(const Size(800.0, 600.0)),
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);
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test('onscreen layout does not affect offscreen', () {
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final TestLayout onscreen = TestLayout();
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final TestLayout offscreen = TestLayout();
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expect(onscreen.child.hasSize, isFalse);
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expect(onscreen.painted, isFalse);
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expect(offscreen.child.hasSize, isFalse);
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expect(offscreen.painted, isFalse);
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// Attach the offscreen to a custom render view and owner
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final RenderView renderView = RenderView(
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configuration: testConfiguration,
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view: RendererBinding.instance.platformDispatcher.views.single,
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);
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final PipelineOwner pipelineOwner = PipelineOwner();
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renderView.attach(pipelineOwner);
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renderView.child = offscreen.root;
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renderView.prepareInitialFrame();
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pipelineOwner.requestVisualUpdate();
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// Lay out the onscreen in the default binding
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layout(onscreen.root, phase: EnginePhase.paint);
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expect(onscreen.child.hasSize, isTrue);
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expect(onscreen.painted, isTrue);
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expect(onscreen.child.size, equals(const Size(800.0, 10.0)));
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// Make sure the offscreen didn't get laid out
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expect(offscreen.child.hasSize, isFalse);
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expect(offscreen.painted, isFalse);
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// Now lay out the offscreen
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pipelineOwner.flushLayout();
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expect(offscreen.child.hasSize, isTrue);
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expect(offscreen.painted, isFalse);
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pipelineOwner.flushCompositingBits();
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pipelineOwner.flushPaint();
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expect(offscreen.painted, isTrue);
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});
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test('offscreen layout does not affect onscreen', () {
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final TestLayout onscreen = TestLayout();
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final TestLayout offscreen = TestLayout();
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expect(onscreen.child.hasSize, isFalse);
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expect(onscreen.painted, isFalse);
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expect(offscreen.child.hasSize, isFalse);
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expect(offscreen.painted, isFalse);
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// Attach the offscreen to a custom render view and owner
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final RenderView renderView = RenderView(
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configuration: testConfiguration,
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view: RendererBinding.instance.platformDispatcher.views.single,
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);
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final PipelineOwner pipelineOwner = PipelineOwner();
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renderView.attach(pipelineOwner);
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renderView.child = offscreen.root;
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renderView.prepareInitialFrame();
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pipelineOwner.requestVisualUpdate();
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// Lay out the offscreen
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pipelineOwner.flushLayout();
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expect(offscreen.child.hasSize, isTrue);
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expect(offscreen.painted, isFalse);
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pipelineOwner.flushCompositingBits();
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pipelineOwner.flushPaint();
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expect(offscreen.painted, isTrue);
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// Make sure the onscreen didn't get laid out
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expect(onscreen.child.hasSize, isFalse);
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expect(onscreen.painted, isFalse);
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// Now lay out the onscreen in the default binding
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layout(onscreen.root, phase: EnginePhase.paint);
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expect(onscreen.child.hasSize, isTrue);
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expect(onscreen.painted, isTrue);
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expect(onscreen.child.size, equals(const Size(800.0, 10.0)));
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});
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}
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