/* | |
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 |