Bug 46485 – Generalize from RenderBox to RenderBoxModelObject for getTransformFromContainer

• Component: Layout and Rendering
• Status: RESOLVED FIXED

[Abhishek Arya]

Fixing as per Simon's comments:
   Comment #5 From  Simon Fraser (smfr)   2010-09-24 10:38:50 PST  (-) [reply]

I think a better fix would be:


diff --git a/WebCore/rendering/RenderObject.cpp b/WebCore/rendering/RenderObject.cpp
index 39ee309..346cd8b 100644
--- a/WebCore/rendering/RenderObject.cpp
+++ b/WebCore/rendering/RenderObject.cpp
@@ -1988,10 +1988,10 @@ void RenderObject::getTransformFromContainer(const RenderObject* containerObject
         transform.multLeft(layer->currentTransform());

 #if ENABLE(3D_RENDERING)
-    if (containerObject && containerObject->isBox() && containerObject->hasLayer() && containerObject->style()->hasPerspective()) {
+    if (containerObject && containerObject->hasLayer() && containerObject->style()->hasPerspective()) {
         // Perpsective on the container affects us, so we have to factor it in here.
         ASSERT(containerObject->hasLayer());
-        FloatPoint perspectiveOrigin = toRenderBox(containerObject)->layer()->perspectiveOrigin();
+        FloatPoint perspectiveOrigin = toRenderBoxModelObject(containerObject)->layer()->perspectiveOrigin();

         TransformationMatrix perspectiveMatrix;
         perspectiveMatrix.applyPerspective(containerObject->style()->perspective());


Nowhere do we state that something has to be a box to have perspective.

[Abhishek Arya]

This fix is so as to comply with the spec, although the current code does not work on things other than RenderBox.

[Abhishek Arya]

Created attachment 68716 [details]
Patch

[Abhishek Arya]

Committed r68278: <http://trac.webkit.org/changeset/68278>