diff options
Diffstat (limited to 'src/3rdparty/webkit/WebCore/bindings/js/JSSVGContextCache.h')
-rw-r--r-- | src/3rdparty/webkit/WebCore/bindings/js/JSSVGContextCache.h | 97 |
1 files changed, 97 insertions, 0 deletions
diff --git a/src/3rdparty/webkit/WebCore/bindings/js/JSSVGContextCache.h b/src/3rdparty/webkit/WebCore/bindings/js/JSSVGContextCache.h new file mode 100644 index 0000000..75ed324 --- /dev/null +++ b/src/3rdparty/webkit/WebCore/bindings/js/JSSVGContextCache.h @@ -0,0 +1,97 @@ +/* + 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 |