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/*
* Copyright (C) Research In Motion Limited 2011-2012. All rights reserved.
* Copyright (C) 2013 Samsung Electronics. 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 SVGAnimatedTypeAnimator_h
#define SVGAnimatedTypeAnimator_h
#include "core/svg/SVGAnimatedType.h"
#include "core/svg/SVGElementInstance.h"
#include "core/svg/properties/SVGAnimatedProperty.h"
#include "wtf/PassOwnPtr.h"
namespace WebCore {
struct SVGElementAnimatedProperties {
SVGElementAnimatedProperties();
SVGElementAnimatedProperties(SVGElement*, Vector<RefPtr<SVGAnimatedProperty> >&);
SVGElement* element;
Vector<RefPtr<SVGAnimatedProperty> > properties;
};
typedef Vector<SVGElementAnimatedProperties> SVGElementAnimatedPropertyList;
class SVGAnimationElement;
class SVGAnimatedTypeAnimator {
WTF_MAKE_FAST_ALLOCATED;
public:
virtual ~SVGAnimatedTypeAnimator();
virtual PassOwnPtr<SVGAnimatedType> constructFromString(const String&) = 0;
virtual PassOwnPtr<SVGAnimatedType> startAnimValAnimation(const SVGElementAnimatedPropertyList&) = 0;
virtual void stopAnimValAnimation(const SVGElementAnimatedPropertyList&) = 0;
virtual void resetAnimValToBaseVal(const SVGElementAnimatedPropertyList&, SVGAnimatedType*) = 0;
virtual void animValWillChange(const SVGElementAnimatedPropertyList&) = 0;
virtual void animValDidChange(const SVGElementAnimatedPropertyList&) = 0;
virtual void addAnimatedTypes(SVGAnimatedType*, SVGAnimatedType*) = 0;
virtual void calculateAnimatedValue(float percentage, unsigned repeatCount, SVGAnimatedType*, SVGAnimatedType*, SVGAnimatedType*, SVGAnimatedType*) = 0;
virtual float calculateDistance(const String& fromString, const String& toString) = 0;
void calculateFromAndToValues(OwnPtr<SVGAnimatedType>& from, OwnPtr<SVGAnimatedType>& to, const String& fromString, const String& toString);
void calculateFromAndByValues(OwnPtr<SVGAnimatedType>& from, OwnPtr<SVGAnimatedType>& to, const String& fromString, const String& byString);
void setContextElement(SVGElement* contextElement) { m_contextElement = contextElement; }
AnimatedPropertyType type() const { return m_type; }
SVGElementAnimatedPropertyList findAnimatedPropertiesForAttributeName(SVGElement*, const QualifiedName&);
protected:
SVGAnimatedTypeAnimator(AnimatedPropertyType, SVGAnimationElement*, SVGElement*);
// Helpers for animators that operate on single types, eg. just one SVGAnimatedInteger.
template<typename AnimValType>
typename AnimValType::ContentType* constructFromBaseValue(const SVGElementAnimatedPropertyList& animatedTypes)
{
ASSERT(animatedTypes[0].properties.size() == 1);
const typename AnimValType::ContentType& animatedType = castAnimatedPropertyToActualType<AnimValType>(animatedTypes[0].properties[0].get())->currentBaseValue();
typename AnimValType::ContentType* copy = new typename AnimValType::ContentType(animatedType);
executeAction<AnimValType>(StartAnimationAction, animatedTypes, 0, copy);
return copy;
}
template<typename AnimValType>
void resetFromBaseValue(const SVGElementAnimatedPropertyList& animatedTypes, SVGAnimatedType* type, typename AnimValType::ContentType& (SVGAnimatedType::*getter)())
{
ASSERT(animatedTypes[0].properties.size() == 1);
ASSERT(type);
ASSERT(type->type() == m_type);
typename AnimValType::ContentType& animatedTypeValue = (type->*getter)();
animatedTypeValue = castAnimatedPropertyToActualType<AnimValType>(animatedTypes[0].properties[0].get())->currentBaseValue();
executeAction<AnimValType>(StartAnimationAction, animatedTypes, 0, &animatedTypeValue);
}
template<typename AnimValType>
void stopAnimValAnimationForType(const SVGElementAnimatedPropertyList& animatedTypes)
{
ASSERT(animatedTypes[0].properties.size() == 1);
executeAction<AnimValType>(StopAnimationAction, animatedTypes, 0);
}
template<typename AnimValType>
void animValDidChangeForType(const SVGElementAnimatedPropertyList& animatedTypes)
{
ASSERT(animatedTypes[0].properties.size() == 1);
executeAction<AnimValType>(AnimValDidChangeAction, animatedTypes, 0);
}
template<typename AnimValType>
void animValWillChangeForType(const SVGElementAnimatedPropertyList& animatedTypes)
{
ASSERT(animatedTypes[0].properties.size() == 1);
executeAction<AnimValType>(AnimValWillChangeAction, animatedTypes, 0);
}
// Helpers for animators that operate on pair types, eg. a pair of SVGAnimatedIntegers.
template<typename AnimValType1, typename AnimValType2>
pair<typename AnimValType1::ContentType, typename AnimValType2::ContentType>* constructFromBaseValues(const SVGElementAnimatedPropertyList& animatedTypes)
{
ASSERT(animatedTypes[0].properties.size() == 2);
const typename AnimValType1::ContentType& firstType = castAnimatedPropertyToActualType<AnimValType1>(animatedTypes[0].properties[0].get())->currentBaseValue();
const typename AnimValType2::ContentType& secondType = castAnimatedPropertyToActualType<AnimValType2>(animatedTypes[0].properties[1].get())->currentBaseValue();
pair<typename AnimValType1::ContentType, typename AnimValType2::ContentType>* copy = new pair<typename AnimValType1::ContentType, typename AnimValType2::ContentType>(firstType, secondType);
executeAction<AnimValType1>(StartAnimationAction, animatedTypes, 0, ©->first);
executeAction<AnimValType2>(StartAnimationAction, animatedTypes, 1, ©->second);
return copy;
}
template<typename AnimValType1, typename AnimValType2>
void resetFromBaseValues(const SVGElementAnimatedPropertyList& animatedTypes, SVGAnimatedType* type, pair<typename AnimValType1::ContentType, typename AnimValType2::ContentType>& (SVGAnimatedType::*getter)())
{
ASSERT(animatedTypes[0].properties.size() == 2);
ASSERT(type);
ASSERT(type->type() == m_type);
pair<typename AnimValType1::ContentType, typename AnimValType2::ContentType>& animatedTypeValue = (type->*getter)();
animatedTypeValue.first = castAnimatedPropertyToActualType<AnimValType1>(animatedTypes[0].properties[0].get())->currentBaseValue();
animatedTypeValue.second = castAnimatedPropertyToActualType<AnimValType2>(animatedTypes[0].properties[1].get())->currentBaseValue();
executeAction<AnimValType1>(StartAnimationAction, animatedTypes, 0, &animatedTypeValue.first);
executeAction<AnimValType2>(StartAnimationAction, animatedTypes, 1, &animatedTypeValue.second);
}
template<typename AnimValType1, typename AnimValType2>
void stopAnimValAnimationForTypes(const SVGElementAnimatedPropertyList& animatedTypes)
{
ASSERT(animatedTypes[0].properties.size() == 2);
executeAction<AnimValType1>(StopAnimationAction, animatedTypes, 0);
executeAction<AnimValType2>(StopAnimationAction, animatedTypes, 1);
}
template<typename AnimValType1, typename AnimValType2>
void animValDidChangeForTypes(const SVGElementAnimatedPropertyList& animatedTypes)
{
ASSERT(animatedTypes[0].properties.size() == 2);
executeAction<AnimValType1>(AnimValDidChangeAction, animatedTypes, 0);
executeAction<AnimValType2>(AnimValDidChangeAction, animatedTypes, 1);
}
template<typename AnimValType1, typename AnimValType2>
void animValWillChangeForTypes(const SVGElementAnimatedPropertyList& animatedTypes)
{
ASSERT(animatedTypes[0].properties.size() == 2);
executeAction<AnimValType1>(AnimValWillChangeAction, animatedTypes, 0);
executeAction<AnimValType2>(AnimValWillChangeAction, animatedTypes, 1);
}
template<typename AnimValType>
AnimValType* castAnimatedPropertyToActualType(SVGAnimatedProperty* property)
{
ASSERT(property);
ASSERT(property->contextElement());
// We can't assert property->animatedPropertyType() == m_type, as there's an exception for SVGMarkerElements orient attribute.
if (property->animatedPropertyType() != m_type) {
ASSERT(m_type == AnimatedAngle);
ASSERT(property->animatedPropertyType() == AnimatedEnumeration);
}
return static_cast<AnimValType*>(property);
}
AnimatedPropertyType m_type;
SVGAnimationElement* m_animationElement;
SVGElement* m_contextElement;
private:
enum AnimationAction {
StartAnimationAction,
StopAnimationAction,
AnimValWillChangeAction,
AnimValDidChangeAction
};
template<typename AnimValType>
void executeAction(AnimationAction action, const SVGElementAnimatedPropertyList& animatedTypes, unsigned whichProperty, typename AnimValType::ContentType* type = 0)
{
SVGElementInstance::InstanceUpdateBlocker blocker(animatedTypes[0].element);
SVGElementAnimatedPropertyList::const_iterator end = animatedTypes.end();
for (SVGElementAnimatedPropertyList::const_iterator it = animatedTypes.begin(); it != end; ++it) {
ASSERT_WITH_SECURITY_IMPLICATION(whichProperty < it->properties.size());
AnimValType* property = castAnimatedPropertyToActualType<AnimValType>(it->properties[whichProperty].get());
switch (action) {
case StartAnimationAction:
ASSERT(type);
if (!property->isAnimating())
property->animationStarted(type);
break;
case StopAnimationAction:
ASSERT(!type);
property->animationEnded();
break;
case AnimValWillChangeAction:
ASSERT(!type);
property->animValWillChange();
break;
case AnimValDidChangeAction:
ASSERT(!type);
property->animValDidChange();
break;
}
}
}
};
} // namespace WebCore
#endif // SVGAnimatedTypeAnimator_h
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