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      1 /*
      2  * Copyright (C) 2004, 2005 Nikolas Zimmermann <zimmermann (at) kde.org>
      3  * Copyright (C) 2004, 2005 Rob Buis <buis (at) kde.org>
      4  * Copyright (C) 2008 Apple Inc. All rights reserved.
      5  * Copyright (C) Research In Motion Limited 2011. All rights reserved.
      6  *
      7  * This library is free software; you can redistribute it and/or
      8  * modify it under the terms of the GNU Library General Public
      9  * License as published by the Free Software Foundation; either
     10  * version 2 of the License, or (at your option) any later version.
     11  *
     12  * This library is distributed in the hope that it will be useful,
     13  * but WITHOUT ANY WARRANTY; without even the implied warranty of
     14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
     15  * Library General Public License for more details.
     16  *
     17  * You should have received a copy of the GNU Library General Public License
     18  * along with this library; see the file COPYING.LIB.  If not, write to
     19  * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
     20  * Boston, MA 02110-1301, USA.
     21  */
     22 
     23 #ifndef SVGAnimateElement_h
     24 #define SVGAnimateElement_h
     25 
     26 #include "core/SVGNames.h"
     27 #include "core/svg/SVGAnimatedTypeAnimator.h"
     28 #include "core/svg/SVGAnimationElement.h"
     29 #include "wtf/OwnPtr.h"
     30 
     31 namespace blink {
     32 
     33 class SVGAnimatedTypeAnimator;
     34 
     35 class SVGAnimateElement : public SVGAnimationElement {
     36     DEFINE_WRAPPERTYPEINFO();
     37 public:
     38     static PassRefPtrWillBeRawPtr<SVGAnimateElement> create(Document&);
     39     virtual ~SVGAnimateElement();
     40 
     41     virtual void trace(Visitor*) OVERRIDE;
     42 
     43     AnimatedPropertyType animatedPropertyType();
     44     bool animatedPropertyTypeSupportsAddition();
     45 
     46 protected:
     47     SVGAnimateElement(const QualifiedName&, Document&);
     48 
     49     virtual void resetAnimatedType() OVERRIDE FINAL;
     50     virtual void clearAnimatedType(SVGElement* targetElement) OVERRIDE FINAL;
     51 
     52     virtual bool calculateToAtEndOfDurationValue(const String& toAtEndOfDurationString) OVERRIDE FINAL;
     53     virtual bool calculateFromAndToValues(const String& fromString, const String& toString) OVERRIDE FINAL;
     54     virtual bool calculateFromAndByValues(const String& fromString, const String& byString) OVERRIDE FINAL;
     55     virtual void calculateAnimatedValue(float percentage, unsigned repeatCount, SVGSMILElement* resultElement) OVERRIDE FINAL;
     56     virtual void applyResultsToTarget() OVERRIDE FINAL;
     57     virtual float calculateDistance(const String& fromString, const String& toString) OVERRIDE FINAL;
     58     virtual bool isAdditive() OVERRIDE FINAL;
     59 
     60     virtual void setTargetElement(SVGElement*) OVERRIDE FINAL;
     61     virtual void setAttributeName(const QualifiedName&) OVERRIDE FINAL;
     62 
     63 private:
     64     void resetAnimatedPropertyType();
     65     SVGAnimatedTypeAnimator* ensureAnimator();
     66 
     67     virtual bool hasValidAttributeType() OVERRIDE;
     68 
     69     RefPtr<SVGPropertyBase> m_fromProperty;
     70     RefPtr<SVGPropertyBase> m_toProperty;
     71     RefPtr<SVGPropertyBase> m_toAtEndOfDurationProperty;
     72     RefPtr<SVGPropertyBase> m_animatedProperty;
     73 
     74     OwnPtrWillBeMember<SVGAnimatedTypeAnimator> m_animator;
     75 };
     76 
     77 inline bool isSVGAnimateElement(const SVGElement& element)
     78 {
     79     return element.hasTagName(SVGNames::animateTag)
     80         || element.hasTagName(SVGNames::animateTransformTag)
     81         || element.hasTagName(SVGNames::setTag);
     82 }
     83 
     84 DEFINE_SVGELEMENT_TYPE_CASTS_WITH_FUNCTION(SVGAnimateElement);
     85 
     86 } // namespace blink
     87 
     88 #endif // SVGAnimateElement_h
     89