| /* |
| * Copyright (C) 2004, 2005 Nikolas Zimmermann <zimmermann@kde.org> |
| * Copyright (C) 2004, 2005, 2006 Rob Buis <buis@kde.org> |
| * Copyright (C) 2007 Eric Seidel <eric@webkit.org> |
| * Copyright (C) 2008 Apple Inc. All rights reserved. |
| * Copyright (C) 2008 Cameron McCormack <cam@mcc.id.au> |
| * Copyright (C) Research In Motion Limited 2011. 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 "SVGAnimatedBoolean.h" |
| #include "SVGExternalResourcesRequired.h" |
| #include "SVGSMILElement.h" |
| #include "SVGTests.h" |
| #include "UnitBezier.h" |
| |
| namespace WebCore { |
| |
| class ConditionEventListener; |
| class SVGAnimatedType; |
| class TimeContainer; |
| |
| enum AnimationMode { |
| NoAnimation, |
| FromToAnimation, |
| FromByAnimation, |
| ToAnimation, |
| ByAnimation, |
| ValuesAnimation, |
| PathAnimation // Used by AnimateMotion. |
| }; |
| |
| // If we have 'currentColor' or 'inherit' as animation value, we need to grab |
| // the value during the animation since the value can be animated itself. |
| enum AnimatedPropertyValueType { RegularPropertyValue, CurrentColorValue, InheritValue }; |
| |
| enum class CalcMode { Discrete, Linear, Paced, Spline }; |
| |
| class SVGAnimationElement : public SVGSMILElement, public SVGTests, public SVGExternalResourcesRequired { |
| WTF_MAKE_ISO_ALLOCATED(SVGAnimationElement); |
| public: |
| float getStartTime() const; |
| float getCurrentTime() const; |
| float getSimpleDuration() const; |
| |
| void beginElement(); |
| void beginElementAt(float offset); |
| void endElement(); |
| void endElementAt(float offset); |
| |
| static bool isTargetAttributeCSSProperty(SVGElement*, const QualifiedName&); |
| |
| bool isAdditive() const override; |
| bool isAccumulated() const; |
| AnimationMode animationMode() const { return m_animationMode; } |
| CalcMode calcMode() const { return m_calcMode; } |
| |
| enum ShouldApplyAnimation { |
| DontApplyAnimation, |
| ApplyCSSAnimation, |
| ApplyXMLAnimation, |
| ApplyXMLandCSSAnimation // For presentation attributes with SVG DOM properties. |
| }; |
| |
| ShouldApplyAnimation shouldApplyAnimation(SVGElement* targetElement, const QualifiedName& attributeName); |
| |
| AnimatedPropertyValueType fromPropertyValueType() const { return m_fromPropertyValueType; } |
| AnimatedPropertyValueType toPropertyValueType() const { return m_toPropertyValueType; } |
| |
| template<typename AnimatedType> void adjustForInheritance(AnimatedType (*parseTypeFromString)(SVGAnimationElement*, const String&), AnimatedPropertyValueType valueType, AnimatedType& animatedType, SVGElement* contextElement) |
| { |
| if (valueType != InheritValue) |
| return; |
| // Replace 'inherit' by its computed property value. |
| ASSERT(parseTypeFromString); |
| String typeString; |
| adjustForInheritance(contextElement, attributeName(), typeString); |
| animatedType = (*parseTypeFromString)(this, typeString); |
| } |
| |
| template<typename AnimatedType> bool adjustFromToListValues(const AnimatedType& fromList, const AnimatedType& toList, AnimatedType& animatedList, float percentage, bool resizeAnimatedListIfNeeded = true) |
| { |
| // If no 'to' value is given, nothing to animate. |
| unsigned toListSize = toList.size(); |
| if (!toListSize) |
| return false; |
| |
| // If the 'from' value is given and it's length doesn't match the 'to' value list length, fallback to a discrete animation. |
| unsigned fromListSize = fromList.size(); |
| if (fromListSize != toListSize && fromListSize) { |
| if (percentage < 0.5) { |
| if (animationMode() != ToAnimation) |
| animatedList = AnimatedType(fromList); |
| } else |
| animatedList = AnimatedType(toList); |
| |
| return false; |
| } |
| |
| ASSERT(!fromListSize || fromListSize == toListSize); |
| if (resizeAnimatedListIfNeeded && animatedList.size() < toListSize) |
| animatedList.resize(toListSize); |
| |
| return true; |
| } |
| |
| template<typename AnimatedType> void animateDiscreteType(float percentage, const AnimatedType& fromType, const AnimatedType& toType, AnimatedType& animatedType) |
| { |
| if ((animationMode() == FromToAnimation && percentage > 0.5) || animationMode() == ToAnimation || percentage == 1) { |
| animatedType = AnimatedType(toType); |
| return; |
| } |
| animatedType = AnimatedType(fromType); |
| } |
| |
| void animateAdditiveNumber(float percentage, unsigned repeatCount, float fromNumber, float toNumber, float toAtEndOfDurationNumber, float& animatedNumber) |
| { |
| float number; |
| if (calcMode() == CalcMode::Discrete) |
| number = percentage < 0.5 ? fromNumber : toNumber; |
| else |
| number = (toNumber - fromNumber) * percentage + fromNumber; |
| |
| if (isAccumulated() && repeatCount) |
| number += toAtEndOfDurationNumber * repeatCount; |
| |
| if (isAdditive() && animationMode() != ToAnimation) |
| animatedNumber += number; |
| else |
| animatedNumber = number; |
| } |
| |
| // SVGTests |
| Ref<SVGStringList> requiredFeatures(); |
| Ref<SVGStringList> requiredExtensions(); |
| Ref<SVGStringList> systemLanguage(); |
| |
| protected: |
| SVGAnimationElement(const QualifiedName&, Document&); |
| |
| void computeCSSPropertyValue(SVGElement*, CSSPropertyID, String& value); |
| virtual void determinePropertyValueTypes(const String& from, const String& to); |
| virtual void resetAnimatedPropertyType(); |
| |
| static bool isSupportedAttribute(const QualifiedName&); |
| void parseAttribute(const QualifiedName&, const AtomicString&) override; |
| void svgAttributeChanged(const QualifiedName&) override; |
| |
| enum class AttributeType { CSS, XML, Auto }; |
| AttributeType attributeType() const { return m_attributeType; } |
| |
| String toValue() const; |
| String byValue() const; |
| String fromValue() const; |
| |
| String targetAttributeBaseValue(); |
| |
| // from SVGSMILElement |
| void startedActiveInterval() override; |
| void updateAnimation(float percent, unsigned repeat, SVGSMILElement* resultElement) override; |
| |
| AnimatedPropertyValueType m_fromPropertyValueType { RegularPropertyValue }; |
| AnimatedPropertyValueType m_toPropertyValueType { RegularPropertyValue }; |
| |
| void setTargetElement(SVGElement*) override; |
| void setAttributeName(const QualifiedName&) override { } |
| bool hasInvalidCSSAttributeType() const { return m_hasInvalidCSSAttributeType; } |
| void checkInvalidCSSAttributeType(SVGElement*); |
| |
| virtual void updateAnimationMode(); |
| void setAnimationMode(AnimationMode animationMode) { m_animationMode = animationMode; } |
| void setCalcMode(CalcMode calcMode) { m_calcMode = calcMode; } |
| |
| private: |
| void animationAttributeChanged() override; |
| void setAttributeType(const AtomicString&); |
| |
| virtual bool calculateToAtEndOfDurationValue(const String& toAtEndOfDurationString) = 0; |
| virtual bool calculateFromAndToValues(const String& fromString, const String& toString) = 0; |
| virtual bool calculateFromAndByValues(const String& fromString, const String& byString) = 0; |
| virtual void calculateAnimatedValue(float percent, unsigned repeatCount, SVGSMILElement* resultElement) = 0; |
| virtual float calculateDistance(const String& /*fromString*/, const String& /*toString*/) { return -1.f; } |
| |
| void currentValuesForValuesAnimation(float percent, float& effectivePercent, String& from, String& to); |
| void calculateKeyTimesForCalcModePaced(); |
| float calculatePercentFromKeyPoints(float percent) const; |
| void currentValuesFromKeyPoints(float percent, float& effectivePercent, String& from, String& to) const; |
| float calculatePercentForSpline(float percent, unsigned splineIndex) const; |
| float calculatePercentForFromTo(float percent) const; |
| unsigned calculateKeyTimesIndex(float percent) const; |
| |
| void applyAnimatedValue(ShouldApplyAnimation, SVGElement* targetElement, const QualifiedName& attributeName, SVGAnimatedType*); |
| void adjustForInheritance(SVGElement* targetElement, const QualifiedName& attributeName, String&); |
| |
| BEGIN_DECLARE_ANIMATED_PROPERTIES(SVGAnimationElement) |
| DECLARE_ANIMATED_BOOLEAN_OVERRIDE(ExternalResourcesRequired, externalResourcesRequired) |
| END_DECLARE_ANIMATED_PROPERTIES |
| |
| // SVGTests |
| void synchronizeRequiredFeatures() final { SVGTests::synchronizeRequiredFeatures(*this); } |
| void synchronizeRequiredExtensions() final { SVGTests::synchronizeRequiredExtensions(*this); } |
| void synchronizeSystemLanguage() final { SVGTests::synchronizeSystemLanguage(*this); } |
| |
| void setCalcMode(const AtomicString&); |
| |
| bool m_animationValid { false }; |
| |
| AttributeType m_attributeType { AttributeType::Auto }; |
| Vector<String> m_values; |
| Vector<float> m_keyTimes; |
| Vector<float> m_keyPoints; |
| Vector<UnitBezier> m_keySplines; |
| String m_lastValuesAnimationFrom; |
| String m_lastValuesAnimationTo; |
| bool m_hasInvalidCSSAttributeType { false }; |
| CalcMode m_calcMode { CalcMode::Linear }; |
| AnimationMode m_animationMode { NoAnimation }; |
| }; |
| |
| } // namespace WebCore |