Move RenderParagraph into layout2.dart

sky/sdk/lib/framework/layout2.dart

 // Copyright 2015 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 'node.dart';
 import 'dart:sky' as sky;
 
 // ABSTRACT LAYOUT
 
 class ParentData {
@@ skipping 170 matching lines @@
   void markNeedsPaint() {
     assert(!_debugDoingPaint);
     // TODO(abarth): It's very redundant to call this for every node in the
     // render tree during layout. We should instead compute a summary bit and
     // call it once at the end of layout.
     sky.view.scheduleFrame();
   }
   void paint(RenderNodeDisplayList canvas) { }
 
 
-  // HIT TESTING  
+  // HIT TESTING
 
   void handlePointer(sky.PointerEvent event) {
     // override this if you have a client, to hand it to the client
     // override this if you want to do anything with the pointer event
   }
 
   // RenderNode subclasses are expected to have a method like the
   // following (with the signature being whatever passes for coordinates
   // for this particular class):
   // bool hitTest(HitTestResult result, { double x, double y }) {
@@ skipping 713 matching lines @@
 
   void hitTestChildren(HitTestResult result, { double x, double y }) {
     defaultHitTestChildren(result, x: x, y: y);
   }
 
   void paint(RenderNodeDisplayList canvas) {
     super.paint(canvas);
     defaultPaint(canvas);
   }
 }
+
+class RenderParagraph extends RenderDecoratedBox {
+  final String text;
+  LayoutRoot _layoutRoot = new LayoutRoot();
+  Document _document;
+
+  RenderParagraph(String this.text) :
+   super(new BoxDecoration(backgroundColor: 0xFFFFFFFF)) {
+    _document = new Document();
+    _layoutRoot.rootElement = _document.createElement('p');
+    _layoutRoot.rootElement.appendChild(_document.createText(this.text));
+  }
+
+  void performLayout() {
+    _layoutRoot.maxWidth = constraints.maxWidth;
+    _layoutRoot.minWidth = constraints.minWidth;
+    _layoutRoot.layout();
+    width = _layoutRoot.rootElement.width;
+    height = _layoutRoot.rootElement.height;
+  }
+
+  void hitTestChildren(HitTestResult result, { double x, double y }) {
+    // defaultHitTestChildren(result, x: x, y: y);
+  }
+
+  void paint(RenderNodeDisplayList canvas) {
+    super.paint(canvas);
+    _layoutRoot.paint(canvas);
+  }
+}