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/*
* Copyright (C) Research In Motion Limited 2010. All rights reserved.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public License
* along with this library; see the file COPYING.LIB. If not, write to
* the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
* Boston, MA 02110-1301, USA.
*/
#ifndef SVGAnimatedPropertyTearOff_h
#define SVGAnimatedPropertyTearOff_h
#if ENABLE(SVG)
#include "SVGAnimatedProperty.h"
#include "SVGPropertyTearOff.h"
namespace WebCore {
template<typename PropertyType>
class SVGAnimatedPropertyTearOff : public SVGAnimatedProperty {
public:
typedef SVGPropertyTearOff<PropertyType> PropertyTearOff;
typedef PropertyType ContentType;
virtual ~SVGAnimatedPropertyTearOff()
{
if (m_baseVal) {
ASSERT(m_baseVal->animatedProperty() == this);
m_baseVal->setAnimatedProperty(0);
}
if (m_animVal) {
ASSERT(m_animVal->animatedProperty() == this);
m_animVal->setAnimatedProperty(0);
}
}
PropertyTearOff* baseVal()
{
if (!m_baseVal)
m_baseVal = PropertyTearOff::create(this, BaseValRole, m_property);
return m_baseVal.get();
}
PropertyTearOff* animVal()
{
if (!m_animVal)
m_animVal = PropertyTearOff::create(this, AnimValRole, m_property);
return m_animVal.get();
}
static PassRefPtr<SVGAnimatedPropertyTearOff<PropertyType> > create(SVGElement* contextElement, const QualifiedName& attributeName, AnimatedPropertyType animatedPropertyType, PropertyType& property)
{
ASSERT(contextElement);
return adoptRef(new SVGAnimatedPropertyTearOff<PropertyType>(contextElement, attributeName, animatedPropertyType, property));
}
PropertyType& currentAnimatedValue()
{
ASSERT(m_isAnimating);
ASSERT(m_animVal);
return m_animVal->propertyReference();
}
const PropertyType& currentBaseValue() const
{
return m_property;
}
void animationStarted(PropertyType* newAnimVal)
{
ASSERT(!m_isAnimating);
ASSERT(newAnimVal);
animVal()->setValue(*newAnimVal);
m_isAnimating = true;
}
void animationEnded()
{
ASSERT(m_isAnimating);
ASSERT(m_animVal);
m_animVal->setValue(m_property);
m_isAnimating = false;
}
void animValWillChange()
{
// no-op for non list types.
ASSERT(m_isAnimating);
ASSERT(m_animVal);
}
void animValDidChange()
{
// no-op for non list types.
ASSERT(m_isAnimating);
ASSERT(m_animVal);
}
private:
SVGAnimatedPropertyTearOff(SVGElement* contextElement, const QualifiedName& attributeName, AnimatedPropertyType animatedPropertyType, PropertyType& property)
: SVGAnimatedProperty(contextElement, attributeName, animatedPropertyType)
, m_property(property)
{
}
PropertyType& m_property;
RefPtr<PropertyTearOff> m_baseVal;
RefPtr<PropertyTearOff> m_animVal;
};
}
#endif // ENABLE(SVG)
#endif // SVGAnimatedPropertyTearOff_h
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