First iteration on custom layout.

sky/engine/core/dom/Element.cpp

Index: sky/engine/core/dom/Element.cpp
diff --git a/sky/engine/core/dom/Element.cpp b/sky/engine/core/dom/Element.cpp
index 20666a14ae90a52322bf29b283cc87931fe3bdca..b1c611c1cc80acab40268215d638acfba24280f2 100644
--- a/sky/engine/core/dom/Element.cpp
+++ b/sky/engine/core/dom/Element.cpp
@@ -73,11 +73,13 @@
 #include "sky/engine/core/html/HTMLTemplateElement.h"
 #include "sky/engine/core/html/parser/HTMLDocumentParser.h"
 #include "sky/engine/core/html/parser/HTMLParserIdioms.h"
+#include "sky/engine/core/layout/LayoutCallback.h"
 #include "sky/engine/core/page/ChromeClient.h"
 #include "sky/engine/core/page/FocusController.h"
 #include "sky/engine/core/page/Page.h"
 #include "sky/engine/core/painting/PaintingCallback.h"
 #include "sky/engine/core/painting/PaintingTasks.h"
+#include "sky/engine/core/rendering/RenderCustomLayout.h"
 #include "sky/engine/core/rendering/RenderLayer.h"
 #include "sky/engine/core/rendering/RenderView.h"
 #include "sky/engine/platform/EventDispatchForbiddenScope.h"
@@ -632,6 +634,8 @@ const AtomicString Element::imageSourceURL() const
 
 RenderObject* Element::createRenderer(RenderStyle* style)
 {
+    if (m_layoutManager)
+        return new RenderCustomLayout(this);
     return RenderObject::createObject(this, style);
 }
 
@@ -891,6 +895,68 @@ ShadowRoot* Element::shadowRoot() const
     return elementShadow->shadowRoot();
 }
 
+double Element::x() const
+{
+    if (RenderBox* box = renderBox())
+        return box->x();
+    return 0;
+}
+
+void Element::setX(double x)
+{
+    if (RenderBox* box = renderBox())
+        return box->setX(x);
+}
+
+double Element::y() const
+{
+    if (RenderBox* box = renderBox())
+        return box->y();
+    return 0;
+}
+
+void Element::setY(double y)
+{
+    if (RenderBox* box = renderBox())
+        return box->setY(y);
+}
+
+double Element::width() const
+{
+    if (RenderBox* box = renderBox())
+        return box->width();
+    return 0;
+}
+
+void Element::setWidth(double width)
+{
+    if (RenderBox* box = renderBox())
+        return box->setWidth(width);
+}
+
+double Element::height() const
+{
+    if (RenderBox* box = renderBox())
+        return box->height();
+    return 0;
+}
+
+void Element::setHeight(double height)
+{
+    if (RenderBox* box = renderBox())
+        return box->setHeight(height);
+}
+
+LayoutCallback* Element::layoutManager() const
+{
+    return m_layoutManager.get();
+}
+
+void Element::setLayoutManager(PassOwnPtr<LayoutCallback> callback)
+{
+    m_layoutManager = callback;

[abarth-chromium, 2015/03/25 00:18:51]

Do we need to dirty ourselves somehow so that Element::createRenderer will pick
up the change to this state?

[ojan, 2015/04/02 00:02:29]

Yes! Will fix in followup patch. There's a number of relayout bugs here.

+}
+
 void Element::childrenChanged(const ChildrenChange& change)
 {
     ContainerNode::childrenChanged(change);