// Copyright 2016 The Chromium 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 'media_query.dart'; import 'framework.dart'; export 'package:flutter/rendering.dart' show ChildViewConnection; class ChildView extends StatelessComponent { ChildView({ Key key, this.child }) : super(key: key); final ChildViewConnection child; Widget build(BuildContext context) { assert(MediaQuery.of(context) != null); return new _ChildViewWidget( child: child, scale: MediaQuery.of(context).devicePixelRatio ); } } class _ChildViewWidget extends LeafRenderObjectWidget { _ChildViewWidget({ ChildViewConnection child, this.scale }) : child = child, super(key: new GlobalObjectKey(child)); final ChildViewConnection child; final double scale; RenderChildView createRenderObject() => new RenderChildView(child: child, scale: scale); void updateRenderObject(RenderChildView renderObject, _ChildViewWidget oldWidget) { renderObject ..child = child ..scale = scale; } }