SVGAnimatedPropertySynchronizer.h [plain text]
#ifndef SVGAnimatedPropertySynchronizer_h
#define SVGAnimatedPropertySynchronizer_h
#include "SVGAnimatedPropertyTraits.h"
#if ENABLE(SVG)
namespace WebCore {
class SVGElement;
template<typename OwnerType, bool isDerivedFromSVGElement>
struct GetOwnerElementForType;
template<typename OwnerType>
struct GetOwnerElementForType<OwnerType, true> : public Noncopyable {
static SVGElement* ownerElement(OwnerType* type)
{
return type;
}
};
template<typename OwnerType>
struct GetOwnerElementForType<OwnerType, false> : public Noncopyable {
static SVGElement* ownerElement(OwnerType* type)
{
SVGElement* context = type->contextElement();
ASSERT(context);
return context;
}
};
template<typename OwnerType>
struct IsDerivedFromSVGElement : public Noncopyable {
static const bool value = true;
};
class SVGViewSpec;
template<>
struct IsDerivedFromSVGElement<SVGViewSpec> : public Noncopyable {
static const bool value = false;
};
template<bool isDerivedFromSVGElement>
struct SVGAnimatedPropertySynchronizer {
static void synchronize(SVGElement*, const QualifiedName&, const AtomicString&);
};
template<>
struct SVGAnimatedPropertySynchronizer<true> {
static void synchronize(SVGElement* ownerElement, const QualifiedName& attrName, const AtomicString& value)
{
NamedNodeMap* namedAttrMap = ownerElement->attributes(false);
Attribute* old = namedAttrMap->getAttributeItem(attrName);
if (old && value.isNull())
namedAttrMap->removeAttribute(old->name());
else if (!old && !value.isNull())
namedAttrMap->addAttribute(ownerElement->createAttribute(attrName, value));
else if (old && !value.isNull())
old->setValue(value);
}
};
template<>
struct SVGAnimatedPropertySynchronizer<false> {
static void synchronize(SVGElement*, const QualifiedName&, const AtomicString&)
{
}
};
};
#endif
#endif