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/*
* 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
* copyright notice, this list of conditions and the following disclaimer
* in the documentation and/or other materials provided with the
* distribution.
* * Neither the name of Google Inc. nor the names of its
* contributors may be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#ifndef SVGPropertyTearOff_h
#define SVGPropertyTearOff_h
#include "core/dom/QualifiedName.h"
#include "core/svg/properties/SVGProperty.h"
#include "wtf/RefCounted.h"
namespace WebCore {
enum PropertyIsAnimValType {
PropertyIsNotAnimVal,
PropertyIsAnimVal
};
class SVGPropertyTearOffBase : public RefCounted<SVGPropertyTearOffBase> {
public:
virtual ~SVGPropertyTearOffBase() { }
PropertyIsAnimValType propertyIsAnimVal() const
{
return m_propertyIsAnimVal;
}
bool isAnimVal() const
{
return m_propertyIsAnimVal == PropertyIsAnimVal;
}
bool isReadOnlyProperty() const
{
return m_isReadOnlyProperty;
}
void setIsReadOnlyProperty()
{
m_isReadOnlyProperty = true;
}
bool isImmutable() const
{
return isReadOnlyProperty() || isAnimVal();
}
virtual void commitChange();
SVGElement* contextElement()
{
return m_contextElement;
}
const QualifiedName& attributeName()
{
return m_attributeName;
}
void attachToSVGElementAttribute(SVGElement* contextElement, const QualifiedName& attributeName)
{
ASSERT(!isImmutable());
ASSERT(contextElement);
ASSERT(attributeName != QualifiedName::null());
m_contextElement = contextElement;
m_attributeName = attributeName;
}
virtual AnimatedPropertyType type() const = 0;
protected:
SVGPropertyTearOffBase(SVGElement* contextElement, PropertyIsAnimValType propertyIsAnimVal, const QualifiedName& attributeName = QualifiedName::null())
: m_contextElement(contextElement)
, m_propertyIsAnimVal(propertyIsAnimVal)
, m_isReadOnlyProperty(false)
, m_attributeName(attributeName)
{
}
private:
// These references are kept alive from V8 wrapper to prevent reference cycles
SVGElement* m_contextElement;
PropertyIsAnimValType m_propertyIsAnimVal;
bool m_isReadOnlyProperty;
QualifiedName m_attributeName;
};
template <typename Property>
class SVGPropertyTearOff : public SVGPropertyTearOffBase {
public:
Property* target()
{
return m_target.get();
}
void setTarget(PassRefPtr<Property> target)
{
m_target = target;
}
virtual AnimatedPropertyType type() const OVERRIDE
{
return Property::classType();
}
protected:
SVGPropertyTearOff(PassRefPtr<Property> target, SVGElement* contextElement, PropertyIsAnimValType propertyIsAnimVal, const QualifiedName& attributeName = QualifiedName::null())
: SVGPropertyTearOffBase(contextElement, propertyIsAnimVal, attributeName)
, m_target(target)
{
ASSERT(m_target);
}
private:
RefPtr<Property> m_target;
};
}
#endif // SVGPropertyTearOff_h
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