[Effen] basic layout container class for custom layout

sky/framework/layouts/block.dart

+
+import 'dart:sky' as sky;
+import '../fn.dart';
+
+class BlockLayout extends LayoutContainer {
+
+  BlockLayout({
+    Object key,
+    List<UINode> children,
+    Style style,
+    String inlineStyle
+  }) : super(
+    key: key,
+    children: children,
+    style: style,
+    inlineStyle: inlineStyle
+  );
+
+  void layout(sky.Element skyNode) {
+    double y = 0.0;

[ojan, 2015/04/08 20:08:11]

FYI, here you should be doing skyNode.width = skyNode.parentNode.width. Without
that the width of the BlockLayout is always 0, so it looks like you don't paint
anything.

[Hixie, 2015/04/09 16:26:39]

why wouldn't the parent set the width?

+    skyNode.getChildElements().forEach((child) {
+      child.width = skyNode.width;
+      child.setNeedsLayout(); // with this line, sky crashes. without it, nothing renders as a child of this LayoutContainer
+      child.layout();
+      child.x = 0.0;
+      child.y = y;
+      y += child.height;
+    });
+    skyNode.height = y;
+  }
+}