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/*
Copyright (C) Research In Motion Limited 2009-2010. 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.
*/
#ifndef JSSVGContextCache_h
#define JSSVGContextCache_h
#if ENABLE(SVG)
#include "SVGElement.h"
#include <wtf/StdLibExtras.h>
namespace WebCore {
class DOMObject;
class JSSVGContextCache : public Noncopyable {
public:
typedef HashMap<DOMObject*, SVGElement*> WrapperMap;
static WrapperMap& wrapperMap()
{
DEFINE_STATIC_LOCAL(WrapperMap, s_wrapperMap, ());
return s_wrapperMap;
}
static void addWrapper(DOMObject* wrapper, SVGElement* context)
{
ASSERT(wrapper);
ASSERT(context);
pair<WrapperMap::iterator, bool> result = wrapperMap().add(wrapper, context);
if (result.second) {
WrapperMap::iterator& it = result.first;
ASSERT_UNUSED(it, it->second == context);
}
}
static void forgetWrapper(DOMObject* wrapper)
{
ASSERT(wrapper);
WrapperMap& map = wrapperMap();
WrapperMap::iterator it = map.find(wrapper);
if (it == map.end())
return;
map.remove(it);
}
static void propagateSVGDOMChange(DOMObject* wrapper, const QualifiedName& attributeName)
{
WrapperMap& map = wrapperMap();
WrapperMap::iterator it = map.find(wrapper);
if (it == map.end())
return;
SVGElement* context = it->second;
ASSERT(context);
context->svgAttributeChanged(attributeName);
}
static SVGElement* svgContextForDOMObject(DOMObject* wrapper)
{
ASSERT(wrapper);
WrapperMap& map = wrapperMap();
WrapperMap::iterator it = map.find(wrapper);
if (it == map.end())
return 0;
SVGElement* context = it->second;
ASSERT(context);
return context;
}
};
}
#endif
#endif
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