| /* |
| * Copyright (C) Research In Motion Limited 2011-2012. All rights reserved. |
| * Copyright (C) 2013 Samsung Electronics. All rights reserved. |
| * Copyright (C) 2018 Apple Inc. 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. |
| */ |
| |
| #pragma once |
| |
| #include "SVGAnimatedProperty.h" |
| #include "SVGAnimatedType.h" |
| #include <wtf/StdLibExtras.h> |
| |
| namespace WebCore { |
| |
| struct SVGElementAnimatedProperties { |
| SVGElement* element; |
| Vector<RefPtr<SVGAnimatedProperty>> properties; |
| }; |
| typedef Vector<SVGElementAnimatedProperties> SVGElementAnimatedPropertyList; |
| |
| class SVGAnimationElement; |
| |
| class SVGAnimatedTypeAnimator { |
| WTF_MAKE_FAST_ALLOCATED; |
| public: |
| virtual ~SVGAnimatedTypeAnimator(); |
| virtual std::unique_ptr<SVGAnimatedType> constructFromString(const String&) = 0; |
| |
| virtual std::unique_ptr<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(std::unique_ptr<SVGAnimatedType>&, std::unique_ptr<SVGAnimatedType>&, const String& fromString, const String& toString); |
| void calculateFromAndByValues(std::unique_ptr<SVGAnimatedType>&, std::unique_ptr<SVGAnimatedType>&, 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> |
| std::unique_ptr<SVGAnimatedType> constructFromBaseValue(const SVGElementAnimatedPropertyList& animatedProperties) |
| { |
| ASSERT(animatedProperties[0].properties.size() == 1); |
| const auto* animatedProperty = castAnimatedPropertyToActualType<AnimValType>(animatedProperties[0].properties[0].get()); |
| |
| auto animatedType = SVGAnimatedType::create(animatedProperty->currentBaseValue()); |
| auto& animatedValue = animatedType->template as<typename AnimValType::ContentType>(); |
| executeAction<AnimValType>(StartAnimationAction, animatedProperties, 0, &animatedValue); |
| return animatedType; |
| } |
| |
| template<typename AnimValType> |
| void resetFromBaseValue(const SVGElementAnimatedPropertyList& animatedProperties, SVGAnimatedType& animatedType) |
| { |
| ASSERT(animatedProperties[0].properties.size() == 1); |
| ASSERT(animatedType.type() == m_type); |
| auto* animatedProperty = castAnimatedPropertyToActualType<AnimValType>(animatedProperties[0].properties[0].get()); |
| animatedProperty->synchronizeWrappersIfNeeded(); |
| |
| auto& animatedValue = animatedType.as<typename AnimValType::ContentType>(); |
| animatedValue = animatedProperty->currentBaseValue(); |
| executeAction<AnimValType>(StartAnimationAction, animatedProperties, 0, &animatedValue); |
| } |
| |
| template<typename AnimValType> |
| void stopAnimValAnimationForType(const SVGElementAnimatedPropertyList& animatedProperties) |
| { |
| ASSERT(animatedProperties[0].properties.size() == 1); |
| executeAction<AnimValType>(StopAnimationAction, animatedProperties, 0); |
| } |
| |
| template<typename AnimValType> |
| void animValDidChangeForType(const SVGElementAnimatedPropertyList& animatedProperties) |
| { |
| ASSERT(animatedProperties[0].properties.size() == 1); |
| executeAction<AnimValType>(AnimValDidChangeAction, animatedProperties, 0); |
| } |
| |
| template<typename AnimValType> |
| void animValWillChangeForType(const SVGElementAnimatedPropertyList& animatedProperties) |
| { |
| ASSERT(animatedProperties[0].properties.size() == 1); |
| executeAction<AnimValType>(AnimValWillChangeAction, animatedProperties, 0); |
| } |
| |
| // Helpers for animators that operate on pair types, eg. a pair of SVGAnimatedIntegers. |
| template<typename AnimValType1, typename AnimValType2> |
| std::unique_ptr<SVGAnimatedType> constructFromBaseValues(const SVGElementAnimatedPropertyList& animatedProperties) |
| { |
| ASSERT(animatedProperties[0].properties.size() == 2); |
| const auto* firstAnimatedProperty = castAnimatedPropertyToActualType<AnimValType1>(animatedProperties[0].properties[0].get()); |
| const auto* secondAnimatedProperty = castAnimatedPropertyToActualType<AnimValType2>(animatedProperties[0].properties[1].get()); |
| |
| auto animatedType = SVGAnimatedType::create(std::make_pair(firstAnimatedProperty->currentBaseValue(), secondAnimatedProperty->currentBaseValue())); |
| auto& AnimatedValue = animatedType->template as<std::pair<typename AnimValType1::ContentType, typename AnimValType2::ContentType>>(); |
| executeAction<AnimValType1>(StartAnimationAction, animatedProperties, 0, &AnimatedValue.first); |
| executeAction<AnimValType2>(StartAnimationAction, animatedProperties, 1, &AnimatedValue.second); |
| return animatedType; |
| } |
| |
| template<typename AnimValType1, typename AnimValType2> |
| void resetFromBaseValues(const SVGElementAnimatedPropertyList& animatedProperties, SVGAnimatedType& animatedType) |
| { |
| ASSERT(animatedProperties[0].properties.size() == 2); |
| ASSERT(animatedType.type() == m_type); |
| auto* firstAnimatedProperty = castAnimatedPropertyToActualType<AnimValType1>(animatedProperties[0].properties[0].get()); |
| auto* secondAnimatedProperty = castAnimatedPropertyToActualType<AnimValType2>(animatedProperties[0].properties[1].get()); |
| firstAnimatedProperty->synchronizeWrappersIfNeeded(); |
| secondAnimatedProperty->synchronizeWrappersIfNeeded(); |
| |
| auto& animatedValue = animatedType.as<std::pair<typename AnimValType1::ContentType, typename AnimValType2::ContentType>>(); |
| animatedValue.first = firstAnimatedProperty->currentBaseValue(); |
| animatedValue.second = secondAnimatedProperty->currentBaseValue(); |
| executeAction<AnimValType1>(StartAnimationAction, animatedProperties, 0, &animatedValue.first); |
| executeAction<AnimValType2>(StartAnimationAction, animatedProperties, 1, &animatedValue.second); |
| } |
| |
| template<typename AnimValType1, typename AnimValType2> |
| void stopAnimValAnimationForTypes(const SVGElementAnimatedPropertyList& animatedProperties) |
| { |
| ASSERT(animatedProperties[0].properties.size() == 2); |
| executeAction<AnimValType1>(StopAnimationAction, animatedProperties, 0); |
| executeAction<AnimValType2>(StopAnimationAction, animatedProperties, 1); |
| } |
| |
| template<typename AnimValType1, typename AnimValType2> |
| void animValDidChangeForTypes(const SVGElementAnimatedPropertyList& animatedProperties) |
| { |
| ASSERT(animatedProperties[0].properties.size() == 2); |
| executeAction<AnimValType1>(AnimValDidChangeAction, animatedProperties, 0); |
| executeAction<AnimValType2>(AnimValDidChangeAction, animatedProperties, 1); |
| } |
| |
| template<typename AnimValType1, typename AnimValType2> |
| void animValWillChangeForTypes(const SVGElementAnimatedPropertyList& animatedProperties) |
| { |
| ASSERT(animatedProperties[0].properties.size() == 2); |
| executeAction<AnimValType1>(AnimValWillChangeAction, animatedProperties, 0); |
| executeAction<AnimValType2>(AnimValWillChangeAction, animatedProperties, 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& animatedProperties, unsigned whichProperty, typename AnimValType::ContentType* animatedValue = nullptr) |
| { |
| // FIXME: Can't use SVGElement::InstanceUpdateBlocker because of circular header dependency. Would be nice to untangle this. |
| setInstanceUpdatesBlocked(*animatedProperties[0].element, true); |
| |
| for (auto& animatedProperty : animatedProperties) { |
| RELEASE_ASSERT_WITH_SECURITY_IMPLICATION(whichProperty < animatedProperty.properties.size()); |
| AnimValType* property = castAnimatedPropertyToActualType<AnimValType>(animatedProperty.properties[whichProperty].get()); |
| |
| switch (action) { |
| case StartAnimationAction: |
| ASSERT(animatedValue); |
| if (!property->isAnimating()) |
| property->animationStarted(animatedValue); |
| break; |
| case StopAnimationAction: |
| ASSERT(!animatedValue); |
| if (property->isAnimating()) |
| property->animationEnded(); |
| break; |
| case AnimValWillChangeAction: |
| ASSERT(!animatedValue); |
| property->animValWillChange(); |
| break; |
| case AnimValDidChangeAction: |
| ASSERT(!animatedValue); |
| property->animValDidChange(); |
| break; |
| } |
| } |
| |
| setInstanceUpdatesBlocked(*animatedProperties[0].element, false); |
| } |
| |
| static void setInstanceUpdatesBlocked(SVGElement&, bool); |
| }; |
| |
| } // namespace WebCore |