[SVG] SVGLength{,List} migration to new SVG property impl.

Source/core/svg/properties/NewSVGListPropertyTearOffHelper.h

 /*
  * Copyright (C) 2013 Google Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are
  * met:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 37 matching lines @@
 
     // WebIDL requires "unsigned long" type instead of size_t.
     unsigned long numberOfItems()
     {
         return toDerived()->target()->numberOfItems();
     }
 
     void clear(ExceptionState& exceptionState)
     {
         if (toDerived()->isImmutable()) {
-            exceptionState.throwDOMException(NoModificationAllowedError, ExceptionMessages::failedToExecute("clear", Derived::propertyTypeName(), "The object is read-only."));
+            exceptionState.throwDOMException(NoModificationAllowedError, "The object is read-only.");
             return;
         }
 
         toDerived()->target()->clear();
     }
 
     PassRefPtr<ItemTearOffType> initialize(PassRefPtr<ItemTearOffType> passItem, ExceptionState& exceptionState)
     {
         RefPtr<ItemTearOffType> item = passItem;
 
         if (toDerived()->isImmutable()) {
-            exceptionState.throwDOMException(NoModificationAllowedError, ExceptionMessages::failedToExecute("initialize", Derived::propertyTypeName(), "The object is read-only."));
+            exceptionState.throwDOMException(NoModificationAllowedError, "The object is read-only.");
             return 0;
         }
 
         if (!item) {
             exceptionState.throwTypeError("Lists must be initialized with a valid item.");
             return 0;
         }
 
         item = cloneIfNeeded(item);
 
         RefPtr<ListPropertyType> ownerList;
         if (item->ownerList())
             ownerList = Derived::upcastFrom(item->ownerList())->target();
 
         RefPtr<ItemPropertyType> value = toDerived()->target()->initialize(item->target(), ownerList);
+        item->setOwnerList(this);
         toDerived()->commitChange();
 
         return createItemTearOff(value.release());
     }
 
     PassRefPtr<ItemTearOffType> getItem(unsigned long index, ExceptionState& exceptionState)
     {
         RefPtr<ItemPropertyType> value = toDerived()->target()->getItem(index, exceptionState);
         return createItemTearOff(value.release());
     }
 
     PassRefPtr<ItemTearOffType> insertItemBefore(PassRefPtr<ItemTearOffType> passItem, unsigned long index, ExceptionState& exceptionState)
     {
         RefPtr<ItemTearOffType> item = passItem;
 
         if (toDerived()->isImmutable()) {
-            exceptionState.throwDOMException(NoModificationAllowedError, ExceptionMessages::failedToExecute("insertItemBefore", Derived::propertyTypeName(), "The object is read-only."));
+            exceptionState.throwDOMException(NoModificationAllowedError, "The object is read-only.");
             return 0;
         }
 
         if (!item) {
-            exceptionState.throwTypeError(ExceptionMessages::failedToExecute("insertItemBefore", Derived::propertyTypeName(), "An invalid item cannot be inserted to a list."));
+            exceptionState.throwTypeError("An invalid item cannot be inserted to a list.");
             return 0;
         }
 
         item = cloneIfNeeded(item);
 
         RefPtr<ListPropertyType> ownerList;
         if (item->ownerList())
             ownerList = Derived::upcastFrom(item->ownerList())->target();
 
         RefPtr<ItemPropertyType> value = toDerived()->target()->insertItemBefore(item->target(), ownerList, index);
+        item->setOwnerList(this);
         toDerived()->commitChange();
 
         return createItemTearOff(value.release());
     }
 
     PassRefPtr<ItemTearOffType> replaceItem(PassRefPtr<ItemTearOffType> passItem, unsigned long index, ExceptionState& exceptionState)
     {
         RefPtr<ItemTearOffType> item = passItem;
 
         if (toDerived()->isImmutable()) {
-            exceptionState.throwDOMException(NoModificationAllowedError, ExceptionMessages::failedToExecute("replaceItem", Derived::propertyTypeName(), "The object is read-only."));
+            exceptionState.throwDOMException(NoModificationAllowedError, "The object is read-only.");
             return 0;
         }
 
         if (!item) {
-            exceptionState.throwTypeError(ExceptionMessages::failedToExecute("replaceItem", Derived::propertyTypeName(), "An invalid item cannot be replaced with an existing list item."));
+            exceptionState.throwTypeError("An invalid item cannot be replaced with an existing list item.");
             return 0;
         }
 
         item = cloneIfNeeded(item);
 
         RefPtr<ListPropertyType> ownerList;
         if (item->ownerList())
             ownerList = Derived::upcastFrom(item->ownerList())->target();
 
         RefPtr<ItemPropertyType> value = toDerived()->target()->replaceItem(item->target(), ownerList, index, exceptionState);
+        item->setOwnerList(this);
         toDerived()->commitChange();
 
         return createItemTearOff(value.release());
     }
 
     PassRefPtr<ItemTearOffType> removeItem(unsigned long index, ExceptionState& exceptionState)
     {
         RefPtr<ItemPropertyType> value = toDerived()->target()->removeItem(index, exceptionState);
         toDerived()->commitChange();
 
-        return createItemTearOff(value.release());
+        return createItemTearOff(value.release(), false);
     }
 
     PassRefPtr<ItemTearOffType> appendItem(PassRefPtr<ItemTearOffType> passItem, ExceptionState& exceptionState)
     {
         RefPtr<ItemTearOffType> item = passItem;
 
         if (toDerived()->isImmutable()) {
-            exceptionState.throwDOMException(NoModificationAllowedError, ExceptionMessages::failedToExecute("appendItem", Derived::propertyTypeName(), "The object is read-only."));
+            exceptionState.throwDOMException(NoModificationAllowedError, "The object is read-only.");
             return 0;
         }
 
         if (!item) {
-            exceptionState.throwTypeError(ExceptionMessages::failedToExecute("appendItem", Derived::propertyTypeName(), "An invalid item cannot be appended to a list."));
+            exceptionState.throwTypeError("An invalid item cannot be appended to a list.");
             return 0;
         }
 
         item = cloneIfNeeded(item);
 
         RefPtr<ListPropertyType> ownerList;
         if (item->ownerList())
             ownerList = Derived::upcastFrom(item->ownerList())->target();
 
         RefPtr<ItemPropertyType> value = toDerived()->target()->appendItem(item->target(), ownerList);
+        item->setOwnerList(this);
         toDerived()->commitChange();
 
         return createItemTearOff(value.release());
     }
 
 protected:
     NewSVGListPropertyTearOffHelper(PassRefPtr<ListPropertyType> target, SVGElement* contextElement, PropertyIsAnimValType propertyIsAnimVal, const QualifiedName& attributeName = nullQName())
         : NewSVGPropertyTearOff<ListPropertyType>(target, contextElement, propertyIsAnimVal, attributeName)
     {
     }
@@ skipping 11 matching lines @@
             // Otherwise we'll end up having two tearoffs that operate on the same SVGProperty. Consider the example above:
             // SVGRectElements SVGAnimatedLength 'width' property baseVal points to the same tear off object
             // that's inserted into SVGTextElements SVGAnimatedLengthList 'x'. textElement.x.baseVal.getItem(0).value += 150 would
             // mutate the rectElement width _and_ the textElement x list. That's obviously wrong, take care of that.
             return ItemTearOffType::create(newItem->target()->clone(), toDerived()->contextElement(), toDerived()->propertyIsAnimVal(), toDerived()->attributeName());
         }
 
         return newItem.release();
     }
 
-    PassRefPtr<ItemTearOffType> createItemTearOff(PassRefPtr<ItemPropertyType> value)
+    PassRefPtr<ItemTearOffType> createItemTearOff(PassRefPtr<ItemPropertyType> value, bool setOwnerList = true)
     {
         if (!value)
             return 0;
 
         RefPtr<ItemTearOffType> tearoff = ItemTearOffType::create(value, toDerived()->contextElement(), toDerived()->propertyIsAnimVal(), toDerived()->attributeName());
-        tearoff->setBelongingList(this);
+        if (setOwnerList)
+            tearoff->setOwnerList(this);
         return tearoff.release();
     }
 
 private:
     Derived* toDerived() { return static_cast<Derived*>(this); }
+
+    static PassRefPtr<Derived> upcastFrom(PassRefPtr<NewSVGPropertyTearOffBase> passBase)
+    {
+        RefPtr<NewSVGPropertyTearOffBase> base = passBase;
+        ASSERT(base->type() == ListPropertyType::classType());
+        return static_pointer_cast<Derived>(base.release());
+    }
 };
 
 }
 
 #endif // NewSVGListPropertyTearOffHelper_h