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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 SVGTransformListPropertyTearOff_h
     21 #define SVGTransformListPropertyTearOff_h
     22 
     23 #include "bindings/v8/ExceptionState.h"
     24 #include "core/dom/ExceptionCode.h"
     25 #include "core/svg/SVGTransformList.h"
     26 #include "core/svg/properties/SVGListPropertyTearOff.h"
     27 
     28 namespace WebCore {
     29 
     30 // SVGTransformList contains two additional methods, that can be exposed to the bindings.
     31 class SVGTransformListPropertyTearOff : public SVGListPropertyTearOff<SVGTransformList> {
     32 public:
     33     typedef SVGAnimatedListPropertyTearOff<SVGTransformList> AnimatedListPropertyTearOff;
     34     typedef SVGAnimatedListPropertyTearOff<SVGTransformList>::ListWrapperCache ListWrapperCache;
     35 
     36     static PassRefPtr<SVGListPropertyTearOff<SVGTransformList> > create(AnimatedListPropertyTearOff* animatedProperty, SVGPropertyRole role, SVGTransformList& values, ListWrapperCache& wrappers)
     37     {
     38         ASSERT(animatedProperty);
     39         return adoptRef(new SVGTransformListPropertyTearOff(animatedProperty, role, values, wrappers));
     40     }
     41 
     42     PassRefPtr<SVGPropertyTearOff<SVGTransform> > createSVGTransformFromMatrix(SVGPropertyTearOff<SVGMatrix>* matrix, ExceptionState& es)
     43     {
     44         ASSERT(m_values);
     45         if (!matrix) {
     46             es.throwDOMException(TypeMismatchError);
     47             return 0;
     48         }
     49         return SVGPropertyTearOff<SVGTransform>::create(m_values->createSVGTransformFromMatrix(matrix->propertyReference()));
     50     }
     51 
     52     PassRefPtr<SVGPropertyTearOff<SVGTransform> > consolidate(ExceptionState& es)
     53     {
     54         ASSERT(m_values);
     55         ASSERT(m_wrappers);
     56         if (!canAlterList(es))
     57             return 0;
     58 
     59         ASSERT(m_values->size() == m_wrappers->size());
     60 
     61         // Spec: If the list was empty, then a value of null is returned.
     62         if (m_values->isEmpty())
     63             return 0;
     64 
     65         detachListWrappers(0);
     66         RefPtr<SVGPropertyTearOff<SVGTransform> > wrapper = SVGPropertyTearOff<SVGTransform>::create(m_values->consolidate());
     67         m_wrappers->append(wrapper);
     68 
     69         ASSERT(m_values->size() == m_wrappers->size());
     70         return wrapper.release();
     71     }
     72 
     73 private:
     74     SVGTransformListPropertyTearOff(AnimatedListPropertyTearOff* animatedProperty, SVGPropertyRole role, SVGTransformList& values, ListWrapperCache& wrappers)
     75         : SVGListPropertyTearOff<SVGTransformList>(animatedProperty, role, values, wrappers)
     76     {
     77     }
     78 };
     79 
     80 }
     81 
     82 #endif // SVGListPropertyTearOff_h
     83