Make XUL elements implement nsIDOMElementCSSInlineStyle. Bug 336096, patch by

Alex Vincent <ajvincent@gmail.com>, r+sr=sicking

content/xul/content/src/nsXULElement.cpp

@@ -83,6 +83,7 @@
 #include "nsIDOMNodeList.h"
 #include "nsIDOMXULCommandDispatcher.h"
 #include "nsIDOMXULElement.h"
+#include "nsIDOMElementCSSInlineStyle.h"
 #include "nsIDOMXULSelectCntrlItemEl.h"
 #include "nsIDocument.h"
 #include "nsIEventListenerManager.h"
@@ -261,6 +262,29 @@ PRUint32             nsXULPrototypeAttribute::gNumCacheSets;
 PRUint32             nsXULPrototypeAttribute::gNumCacheFills;
 #endif
 
+
+class nsXULElementTearoff : public nsIDOMElementCSSInlineStyle
+{
+  NS_DECL_ISUPPORTS
+
+  nsXULElementTearoff(nsXULElement *aElement)
+    : mElement(aElement)
+  {
+  }
+
+  NS_FORWARD_NSIDOMELEMENTCSSINLINESTYLE(mElement->)
+
+private:
+  nsRefPtr<nsXULElement> mElement;
+};
+
+NS_IMPL_ADDREF(nsXULElementTearoff)
+NS_IMPL_RELEASE(nsXULElementTearoff)
+
+NS_INTERFACE_MAP_BEGIN(nsXULElementTearoff)
+  NS_INTERFACE_MAP_ENTRY(nsIDOMElementCSSInlineStyle)
+NS_INTERFACE_MAP_END_AGGREGATED(mElement)
+
 //----------------------------------------------------------------------
 // nsXULElement
 //
@@ -416,6 +440,10 @@ nsXULElement::QueryInterface(REFNSIID aIID, void** aInstancePtr)
         inst = NS_STATIC_CAST(nsIScriptEventHandlerOwner *, this);
     } else if (aIID.Equals(NS_GET_IID(nsIChromeEventHandler))) {
         inst = NS_STATIC_CAST(nsIChromeEventHandler *, this);
+    } else if (aIID.Equals(NS_GET_IID(nsIDOMElementCSSInlineStyle))) {
+        inst = NS_STATIC_CAST(nsIDOMElementCSSInlineStyle *,
+                              new nsXULElementTearoff(this));
+        NS_ENSURE_TRUE(inst, NS_ERROR_OUT_OF_MEMORY);
     } else if (aIID.Equals(NS_GET_IID(nsIClassInfo))) {
         inst = nsContentUtils::GetClassInfoInstance(eDOMClassInfo_XULElement_id);
         NS_ENSURE_TRUE(inst, NS_ERROR_OUT_OF_MEMORY);

dom/src/base/nsDOMClassInfo.cpp

@@ -2384,6 +2384,7 @@ nsDOMClassInfo::Init()
     DOM_CLASSINFO_MAP_ENTRY(nsIDOMXULElement)
     DOM_CLASSINFO_MAP_ENTRY(nsIDOMEventTarget)
     DOM_CLASSINFO_MAP_ENTRY(nsIDOM3Node)
+    DOM_CLASSINFO_MAP_ENTRY(nsIDOMElementCSSInlineStyle)
   DOM_CLASSINFO_MAP_END
 
   DOM_CLASSINFO_MAP_BEGIN(XULCommandDispatcher, nsIDOMXULCommandDispatcher)