mirror of
https://github.com/flutter/flutter.git
synced 2026-02-15 15:23:32 +08:00
5491c8c146
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>
73 lines
2.2 KiB
Dart
73 lines
2.2 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/rendering.dart';
|
|
import 'package:flutter_test/flutter_test.dart';
|
|
|
|
import 'rendering_tester.dart';
|
|
|
|
int layouts = 0;
|
|
|
|
class RenderLayoutWatcher extends RenderProxyBox {
|
|
RenderLayoutWatcher(RenderBox super.child);
|
|
@override
|
|
void performLayout() {
|
|
layouts += 1;
|
|
super.performLayout();
|
|
}
|
|
}
|
|
|
|
void main() {
|
|
TestRenderingFlutterBinding.ensureInitialized();
|
|
|
|
test('RenderViewport basic test - impact of layout', () {
|
|
RenderSliverToBoxAdapter sliver;
|
|
RenderViewport viewport;
|
|
RenderBox box;
|
|
final RenderLayoutWatcher root = RenderLayoutWatcher(
|
|
viewport = RenderViewport(
|
|
crossAxisDirection: AxisDirection.right,
|
|
offset: ViewportOffset.zero(),
|
|
children: <RenderSliver>[
|
|
sliver = RenderSliverToBoxAdapter(child: box = RenderSizedBox(const Size(100.0, 400.0))),
|
|
],
|
|
),
|
|
);
|
|
expect(layouts, 0);
|
|
layout(root);
|
|
expect(layouts, 1);
|
|
expect(box.localToGlobal(box.size.center(Offset.zero)), const Offset(400.0, 200.0));
|
|
|
|
sliver.child = box = RenderSizedBox(const Size(100.0, 300.0));
|
|
expect(layouts, 1);
|
|
pumpFrame();
|
|
expect(layouts, 1);
|
|
expect(box.localToGlobal(box.size.center(Offset.zero)), const Offset(400.0, 150.0));
|
|
|
|
viewport.offset = ViewportOffset.fixed(20.0);
|
|
expect(layouts, 1);
|
|
pumpFrame();
|
|
expect(layouts, 1);
|
|
expect(box.localToGlobal(box.size.center(Offset.zero)), const Offset(400.0, 130.0));
|
|
|
|
viewport.offset = ViewportOffset.fixed(-20.0);
|
|
expect(layouts, 1);
|
|
pumpFrame();
|
|
expect(layouts, 1);
|
|
expect(box.localToGlobal(box.size.center(Offset.zero)), const Offset(400.0, 170.0));
|
|
|
|
viewport.anchor = 20.0 / 600.0;
|
|
expect(layouts, 1);
|
|
pumpFrame();
|
|
expect(layouts, 1);
|
|
expect(box.localToGlobal(box.size.center(Offset.zero)), const Offset(400.0, 190.0));
|
|
|
|
viewport.axisDirection = AxisDirection.up;
|
|
expect(layouts, 1);
|
|
pumpFrame();
|
|
expect(layouts, 1);
|
|
expect(box.localToGlobal(box.size.center(Offset.zero)), const Offset(400.0, 600.0 - 190.0));
|
|
});
|
|
}
|