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      1 /*
      2  * Copyright (C) Research In Motion Limited 2010. All rights reserved.
      3  *
      4  * This library is free software; you can redistribute it and/or
      5  * modify it under the terms of the GNU Library General Public
      6  * License as published by the Free Software Foundation; either
      7  * version 2 of the License, or (at your option) any later version.
      8  *
      9  * This library is distributed in the hope that it will be useful,
     10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
     11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
     12  * Library General Public License for more details.
     13  *
     14  * You should have received a copy of the GNU Library General Public License
     15  * along with this library; see the file COPYING.LIB.  If not, write to
     16  * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
     17  * Boston, MA 02110-1301, USA.
     18  */
     19 
     20 #ifndef SVGMatrixTearOff_h
     21 #define SVGMatrixTearOff_h
     22 
     23 #include "core/svg/SVGTransform.h"
     24 #include "core/svg/properties/SVGPropertyTearOff.h"
     25 
     26 namespace WebCore {
     27 
     28 class SVGMatrixTearOff : public SVGPropertyTearOff<SVGMatrix> {
     29 public:
     30     // Used for non-animated POD types that are not associated with a SVGAnimatedProperty object, nor with a XML DOM attribute
     31     // and that contain a parent type that's exposed to the bindings via a SVGStaticPropertyTearOff object
     32     // (for example: SVGTransform::matrix).
     33     static PassRefPtr<SVGMatrixTearOff> create(SVGPropertyTearOff<SVGTransform>* parent, SVGMatrix& value)
     34     {
     35         ASSERT(parent);
     36         RefPtr<SVGMatrixTearOff> result = adoptRef(new SVGMatrixTearOff(parent, value));
     37         parent->addChild(result->m_weakFactory.createWeakPtr());
     38         return result.release();
     39     }
     40 
     41     virtual void commitChange()
     42     {
     43         m_parent->propertyReference().updateSVGMatrix();
     44         m_parent->commitChange();
     45     }
     46 
     47 private:
     48     SVGMatrixTearOff(SVGPropertyTearOff<SVGTransform>* parent, SVGMatrix& value)
     49         : SVGPropertyTearOff<SVGMatrix>(0, UndefinedRole, value)
     50         , m_parent(parent)
     51         , m_weakFactory(this)
     52     {
     53     }
     54 
     55     RefPtr<SVGPropertyTearOff<SVGTransform> > m_parent;
     56     WeakPtrFactory<SVGPropertyTearOffBase > m_weakFactory;
     57 };
     58 
     59 }
     60 
     61 #endif // SVGMatrixTearOff_h
     62