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/*
Copyright (C) 2008 Nikolas Zimmermann <zimmermann@kde.org>
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 SVGAnimatedProperty_h
#define SVGAnimatedProperty_h
#if ENABLE(SVG)
#include "SVGAnimatedTemplate.h"
#include "SVGDocumentExtensions.h"
#include "SynchronizableTypeWrapper.h"
namespace WebCore {
template<typename OwnerTypeArg, typename AnimatedTypeArg, const char* TagName, const char* PropertyName>
class SVGAnimatedProperty;
template<typename OwnerType, typename OwnerElement, typename AnimatedType, typename DecoratedType, const char* TagName, const char* PropertyName>
class SVGAnimatedPropertyTearOff : public SVGAnimatedTemplate<DecoratedType> {
public:
typedef SVGAnimatedPropertyTearOff<OwnerType, OwnerElement, AnimatedType, DecoratedType, TagName, PropertyName> Self;
typedef SVGAnimatedProperty<OwnerType, AnimatedType, TagName, PropertyName> Creator;
static PassRefPtr<Self> create(const Creator& creator, const OwnerElement* owner, const QualifiedName& attributeName)
{
return adoptRef(new Self(creator, owner, attributeName));
}
virtual DecoratedType baseVal() const;
virtual void setBaseVal(DecoratedType);
virtual DecoratedType animVal() const;
virtual void setAnimVal(DecoratedType);
private:
SVGAnimatedPropertyTearOff(const Creator&, const OwnerElement*, const QualifiedName& attributeName);
Creator& m_creator;
RefPtr<OwnerElement> m_ownerElement;
};
// Helper templates mapping owner types to owner elements (for SVG*Element OwnerType is equal to OwnerElement, for non-SVG*Element derived types, they're different)
template<typename OwnerType, bool isDerivedFromSVGElement>
struct GetOwnerElementForType;
template<typename OwnerType>
struct IsDerivedFromSVGElement;
// Helper template used for synchronizing SVG <-> XML properties
template<typename OwnerElement, typename DecoratedType>
void synchronizeProperty(const OwnerElement* ownerElement, const QualifiedName& attributeName, DecoratedType baseValue);
// Abstract base class
class SVGAnimatedPropertyBase : public Noncopyable {
public:
virtual ~SVGAnimatedPropertyBase() { }
virtual void synchronize() const = 0;
};
template<typename OwnerTypeArg, typename AnimatedTypeArg, const char* TagName, const char* PropertyName>
class SVGAnimatedProperty : public SVGAnimatedPropertyBase {
public:
typedef OwnerTypeArg OwnerType;
typedef AnimatedTypeArg AnimatedType;
typedef typename SVGAnimatedTypeValue<AnimatedType>::StorableType StorableType;
typedef typename SVGAnimatedTypeValue<AnimatedType>::DecoratedType DecoratedType;
typedef GetOwnerElementForType<OwnerType, IsDerivedFromSVGElement<OwnerType>::value> OwnerElementForType;
typedef typename OwnerElementForType::OwnerElement OwnerElement;
typedef SVGAnimatedPropertyTearOff<OwnerType, OwnerElement, AnimatedType, DecoratedType, TagName, PropertyName> TearOff;
// attributeName & attributeIdentifier may differ. For SVGMarkerElement, there are two exposed SVG animatable
// properties: orientType & orientAngle, though only one DOM attribute "orient", handle these cases!
SVGAnimatedProperty(const OwnerType*, const QualifiedName& attributeName);
SVGAnimatedProperty(const OwnerType*, const QualifiedName& attributeName, const AtomicString& attributeIdentifier);
// "Forwarding constructors" for primitive type assignment with more than one argument
template<typename T1>
SVGAnimatedProperty(const OwnerType*, const QualifiedName& attributeName,
const T1&);
template<typename T1>
SVGAnimatedProperty(const OwnerType*, const QualifiedName& attributeName, const AtomicString& attributeIdentifier,
const T1&);
template<typename T1, typename T2>
SVGAnimatedProperty(const OwnerType*, const QualifiedName& attributeName,
const T1&, const T2&);
template<typename T1, typename T2>
SVGAnimatedProperty(const OwnerType*, const QualifiedName& attributeName, const AtomicString& attributeIdentifier,
const T1&, const T2&);
template<typename T1, typename T2, typename T3>
SVGAnimatedProperty(const OwnerType*, const QualifiedName& attributeName,
const T1&, const T2&, const T3&);
template<typename T1, typename T2, typename T3>
SVGAnimatedProperty(const OwnerType*, const QualifiedName& attributeName, const AtomicString& attributeIdentifier,
const T1&, const T2&, const T3&);
DecoratedType value() const;
void setValue(DecoratedType);
DecoratedType baseValue() const;
void setBaseValue(DecoratedType);
// Tear offs only used by bindings, never in internal code
PassRefPtr<TearOff> animatedTearOff() const;
virtual void synchronize() const;
void startAnimation() const;
void stopAnimation();
private:
const OwnerElement* ownerElement() const;
private:
// We're a member variable on stack, living in OwnerType, NO need to ref here.
const OwnerType* m_ownerType;
const QualifiedName& m_attributeName;
const AtomicString& m_attributeIdentifier;
mutable SynchronizableTypeWrapper<StorableType> m_value;
};
// SVGAnimatedPropertyTearOff implementation
template<typename OwnerType, typename OwnerElement, typename AnimatedType, typename DecoratedType, const char* TagName, const char* PropertyName>
SVGAnimatedPropertyTearOff<OwnerType, OwnerElement, AnimatedType, DecoratedType, TagName, PropertyName>::SVGAnimatedPropertyTearOff(const Creator& creator,
const OwnerElement* owner,
const QualifiedName& attributeName)
: SVGAnimatedTemplate<DecoratedType>(attributeName)
, m_creator(const_cast<Creator&>(creator))
, m_ownerElement(const_cast<OwnerElement*>(owner))
{
ASSERT(m_ownerElement);
}
template<typename OwnerType, typename OwnerElement, typename AnimatedType, typename DecoratedType, const char* TagName, const char* PropertyName>
DecoratedType SVGAnimatedPropertyTearOff<OwnerType, OwnerElement, AnimatedType, DecoratedType, TagName, PropertyName>::baseVal() const
{
return m_creator.baseValue();
}
template<typename OwnerType, typename OwnerElement, typename AnimatedType, typename DecoratedType, const char* TagName, const char* PropertyName>
void SVGAnimatedPropertyTearOff<OwnerType, OwnerElement, AnimatedType, DecoratedType, TagName, PropertyName>::setBaseVal(DecoratedType newBaseVal)
{
m_creator.setBaseValue(newBaseVal);
}
template<typename OwnerType, typename OwnerElement, typename AnimatedType, typename DecoratedType, const char* TagName, const char* PropertyName>
DecoratedType SVGAnimatedPropertyTearOff<OwnerType, OwnerElement, AnimatedType, DecoratedType, TagName, PropertyName>::animVal() const
{
return m_creator.value();
}
template<typename OwnerType, typename OwnerElement, typename AnimatedType, typename DecoratedType, const char* TagName, const char* PropertyName>
void SVGAnimatedPropertyTearOff<OwnerType, OwnerElement, AnimatedType, DecoratedType, TagName, PropertyName>::setAnimVal(DecoratedType newAnimVal)
{
m_creator.setValue(newAnimVal);
}
// SVGAnimatedProperty implementation
template<typename OwnerTypeArg, typename AnimatedTypeArg, const char* TagName, const char* PropertyName>
SVGAnimatedProperty<OwnerTypeArg, AnimatedTypeArg, TagName, PropertyName>::SVGAnimatedProperty(const OwnerType* owner,
const QualifiedName& attributeName)
: m_ownerType(owner)
, m_attributeName(attributeName)
, m_attributeIdentifier(attributeName.localName())
, m_value()
{
ASSERT(m_ownerType);
}
template<typename OwnerTypeArg, typename AnimatedTypeArg, const char* TagName, const char* PropertyName>
SVGAnimatedProperty<OwnerTypeArg, AnimatedTypeArg, TagName, PropertyName>::SVGAnimatedProperty(const OwnerType* owner,
const QualifiedName& attributeName,
const AtomicString& attributeIdentifier)
: m_ownerType(owner)
, m_attributeName(attributeName)
, m_attributeIdentifier(attributeIdentifier)
, m_value()
{
ASSERT(m_ownerType);
}
template<typename OwnerTypeArg, typename AnimatedTypeArg, const char* TagName, const char* PropertyName>
template<typename T1>
SVGAnimatedProperty<OwnerTypeArg, AnimatedTypeArg, TagName, PropertyName>::SVGAnimatedProperty(const OwnerType* owner,
const QualifiedName& attributeName,
const T1& arg1)
: m_ownerType(owner)
, m_attributeName(attributeName)
, m_attributeIdentifier(attributeName.localName())
, m_value(arg1)
{
ASSERT(m_ownerType);
}
template<typename OwnerTypeArg, typename AnimatedTypeArg, const char* TagName, const char* PropertyName>
template<typename T1>
SVGAnimatedProperty<OwnerTypeArg, AnimatedTypeArg, TagName, PropertyName>::SVGAnimatedProperty(const OwnerType* owner,
const QualifiedName& attributeName,
const AtomicString& attributeIdentifier,
const T1& arg1)
: m_ownerType(owner)
, m_attributeName(attributeName)
, m_attributeIdentifier(attributeIdentifier)
, m_value(arg1)
{
ASSERT(m_ownerType);
}
template<typename OwnerTypeArg, typename AnimatedTypeArg, const char* TagName, const char* PropertyName>
template<typename T1, typename T2>
SVGAnimatedProperty<OwnerTypeArg, AnimatedTypeArg, TagName, PropertyName>::SVGAnimatedProperty(const OwnerType* owner,
const QualifiedName& attributeName,
const T1& arg1,
const T2& arg2)
: m_ownerType(owner)
, m_attributeName(attributeName)
, m_attributeIdentifier(attributeName.localName())
, m_value(arg1, arg2)
{
ASSERT(m_ownerType);
}
template<typename OwnerTypeArg, typename AnimatedTypeArg, const char* TagName, const char* PropertyName>
template<typename T1, typename T2>
SVGAnimatedProperty<OwnerTypeArg, AnimatedTypeArg, TagName, PropertyName>::SVGAnimatedProperty(const OwnerType* owner,
const QualifiedName& attributeName,
const AtomicString& attributeIdentifier,
const T1& arg1,
const T2& arg2)
: m_ownerType(owner)
, m_attributeName(attributeName)
, m_attributeIdentifier(attributeIdentifier)
, m_value(arg1, arg2)
{
ASSERT(m_ownerType);
}
template<typename OwnerTypeArg, typename AnimatedTypeArg, const char* TagName, const char* PropertyName>
template<typename T1, typename T2, typename T3>
SVGAnimatedProperty<OwnerTypeArg, AnimatedTypeArg, TagName, PropertyName>::SVGAnimatedProperty(const OwnerType* owner,
const QualifiedName& attributeName,
const T1& arg1,
const T2& arg2,
const T3& arg3)
: m_ownerType(owner)
, m_attributeName(attributeName)
, m_attributeIdentifier(attributeName.localName())
, m_value(arg1, arg2, arg3)
{
ASSERT(m_ownerType);
}
template<typename OwnerTypeArg, typename AnimatedTypeArg, const char* TagName, const char* PropertyName>
template<typename T1, typename T2, typename T3>
SVGAnimatedProperty<OwnerTypeArg, AnimatedTypeArg, TagName, PropertyName>::SVGAnimatedProperty(const OwnerType* owner,
const QualifiedName& attributeName,
const AtomicString& attributeIdentifier,
const T1& arg1,
const T2& arg2,
const T3& arg3)
: m_ownerType(owner)
, m_attributeName(attributeName)
, m_attributeIdentifier(attributeIdentifier)
, m_value(arg1, arg2, arg3)
{
ASSERT(m_ownerType);
}
template<typename OwnerTypeArg, typename AnimatedTypeArg, const char* TagName, const char* PropertyName>
typename SVGAnimatedProperty<OwnerTypeArg, AnimatedTypeArg, TagName, PropertyName>::DecoratedType
SVGAnimatedProperty<OwnerTypeArg, AnimatedTypeArg, TagName, PropertyName>::value() const
{
return m_value;
}
template<typename OwnerTypeArg, typename AnimatedTypeArg, const char* TagName, const char* PropertyName>
void SVGAnimatedProperty<OwnerTypeArg, AnimatedTypeArg, TagName, PropertyName>::setValue(typename SVGAnimatedProperty::DecoratedType newValue)
{
m_value = newValue;
ownerElement()->setSynchronizedSVGAttributes(false);
}
template<typename OwnerTypeArg, typename AnimatedTypeArg, const char* TagName, const char* PropertyName>
typename SVGAnimatedProperty<OwnerTypeArg, AnimatedTypeArg, TagName, PropertyName>::DecoratedType
SVGAnimatedProperty<OwnerTypeArg, AnimatedTypeArg, TagName, PropertyName>::baseValue() const
{
const OwnerElement* ownerElement = this->ownerElement();
SVGDocumentExtensions* extensions = ownerElement->accessDocumentSVGExtensions();
if (extensions && extensions->hasBaseValue<DecoratedType>(ownerElement, m_attributeIdentifier))
return extensions->baseValue<DecoratedType>(ownerElement, m_attributeIdentifier);
return m_value;
}
template<typename OwnerTypeArg, typename AnimatedTypeArg, const char* TagName, const char* PropertyName>
void SVGAnimatedProperty<OwnerTypeArg, AnimatedTypeArg, TagName, PropertyName>::setBaseValue(typename SVGAnimatedProperty::DecoratedType newValue)
{
const OwnerElement* ownerElement = this->ownerElement();
SVGDocumentExtensions* extensions = ownerElement->accessDocumentSVGExtensions();
if (extensions && extensions->hasBaseValue<DecoratedType>(ownerElement, m_attributeIdentifier)) {
extensions->setBaseValue<DecoratedType>(ownerElement, m_attributeIdentifier, newValue);
return;
}
// Only update stored property, if not animating
m_value = newValue;
ownerElement->setSynchronizedSVGAttributes(false);
}
template<typename OwnerTypeArg, typename AnimatedTypeArg, const char* TagName, const char* PropertyName>
PassRefPtr<typename SVGAnimatedProperty<OwnerTypeArg, AnimatedTypeArg, TagName, PropertyName>::TearOff>
SVGAnimatedProperty<OwnerTypeArg, AnimatedTypeArg, TagName, PropertyName>::animatedTearOff() const
{
return lookupOrCreateWrapper<OwnerTypeArg, AnimatedTypeArg, TagName, PropertyName, TearOff, OwnerElement>(*this, ownerElement(), m_attributeName, m_attributeIdentifier);
}
template<typename OwnerTypeArg, typename AnimatedTypeArg, const char* TagName, const char* PropertyName>
void SVGAnimatedProperty<OwnerTypeArg, AnimatedTypeArg, TagName, PropertyName>::synchronize() const
{
if (!m_value.needsSynchronization())
return;
synchronizeProperty<OwnerElement, DecoratedType>(ownerElement(), m_attributeName, baseValue());
m_value.setSynchronized();
}
template<typename OwnerTypeArg, typename AnimatedTypeArg, const char* TagName, const char* PropertyName>
void SVGAnimatedProperty<OwnerTypeArg, AnimatedTypeArg, TagName, PropertyName>::startAnimation() const
{
const OwnerElement* ownerElement = this->ownerElement();
SVGDocumentExtensions* extensions = ownerElement->accessDocumentSVGExtensions();
if (extensions) {
ASSERT(!extensions->hasBaseValue<DecoratedType>(ownerElement, m_attributeIdentifier));
extensions->setBaseValue<DecoratedType>(ownerElement, m_attributeIdentifier, m_value);
}
}
template<typename OwnerTypeArg, typename AnimatedTypeArg, const char* TagName, const char* PropertyName>
void SVGAnimatedProperty<OwnerTypeArg, AnimatedTypeArg, TagName, PropertyName>::stopAnimation()
{
const OwnerElement* ownerElement = this->ownerElement();
SVGDocumentExtensions* extensions = ownerElement->accessDocumentSVGExtensions();
if (extensions) {
ASSERT(extensions->hasBaseValue<DecoratedType>(ownerElement, m_attributeIdentifier));
setValue(extensions->baseValue<DecoratedType>(ownerElement, m_attributeIdentifier));
extensions->removeBaseValue<AnimatedType>(ownerElement, m_attributeIdentifier);
}
}
template<typename OwnerTypeArg, typename AnimatedTypeArg, const char* TagName, const char* PropertyName>
const typename SVGAnimatedProperty<OwnerTypeArg, AnimatedTypeArg, TagName, PropertyName>::OwnerElement*
SVGAnimatedProperty<OwnerTypeArg, AnimatedTypeArg, TagName, PropertyName>::ownerElement() const
{
return OwnerElementForType::ownerElement(m_ownerType);
}
// GetOwnerElementForType implementation
template<typename OwnerType>
struct GetOwnerElementForType<OwnerType, true> : Noncopyable {
typedef OwnerType OwnerElement;
static const OwnerElement* ownerElement(const OwnerType* type)
{
return type;
}
};
template<typename OwnerType>
struct GetOwnerElementForType<OwnerType, false> : Noncopyable {
typedef SVGElement OwnerElement;
static const OwnerElement* ownerElement(const OwnerType* type)
{
const OwnerElement* context = type->contextElement();
ASSERT(context);
return context;
}
};
// IsDerivedFromSVGElement implementation
template<typename OwnerType>
struct IsDerivedFromSVGElement : Noncopyable {
static const bool value = true;
};
class SVGExternalResourcesRequired;
template<>
struct IsDerivedFromSVGElement<SVGExternalResourcesRequired> : Noncopyable {
static const bool value = false;
};
class SVGFitToViewBox;
template<>
struct IsDerivedFromSVGElement<SVGFitToViewBox> : Noncopyable {
static const bool value = false;
};
class SVGURIReference;
template<>
struct IsDerivedFromSVGElement<SVGURIReference> : Noncopyable {
static const bool value = false;
};
// Central function handling the main SVG<->XML synchronization part.
template<typename OwnerElement, typename DecoratedType>
void synchronizeProperty(const OwnerElement* ownerElement, const QualifiedName& attributeName, DecoratedType baseValue)
{
AtomicString value(SVGAnimatedTypeValue<DecoratedType>::toString(baseValue));
NamedNodeMap* namedAttrMap = ownerElement->attributes(false);
Attribute* old = namedAttrMap->getAttributeItem(attributeName);
if (old && value.isNull())
namedAttrMap->removeAttribute(old->name());
else if (!old && !value.isNull())
namedAttrMap->addAttribute(const_cast<OwnerElement*>(ownerElement)->createAttribute(attributeName, value));
else if (old && !value.isNull())
old->setValue(value);
}
// Helper macro used to register animated properties within SVG* classes
#define ANIMATED_PROPERTY_DECLARATIONS(OwnerType, ElementTag, AttributeTag, AnimatedType, UpperProperty, LowerProperty) \
private: \
typedef SVGAnimatedProperty<OwnerType, AnimatedType, ElementTag, AttributeTag> SVGAnimatedProperty##UpperProperty; \
typedef SVGAnimatedTypeValue<AnimatedType>::DecoratedType DecoratedTypeFor##UpperProperty; \
SVGAnimatedProperty##UpperProperty m_##LowerProperty; \
public: \
DecoratedTypeFor##UpperProperty LowerProperty() const { return m_##LowerProperty.value(); } \
void set##UpperProperty(DecoratedTypeFor##UpperProperty type) { m_##LowerProperty.setValue(type); } \
DecoratedTypeFor##UpperProperty LowerProperty##BaseValue() const { return m_##LowerProperty.baseValue(); } \
void set##UpperProperty##BaseValue(DecoratedTypeFor##UpperProperty type) { m_##LowerProperty.setBaseValue(type); } \
PassRefPtr<SVGAnimatedProperty##UpperProperty::TearOff> LowerProperty##Animated() const { return m_##LowerProperty.animatedTearOff(); } \
void synchronize##UpperProperty() const { m_##LowerProperty.synchronize(); }
};
#endif
#endif
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