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/*
* Copyright (C) 2008, 2009, 2010 Apple Inc. All rights reserved.
* Copyright (C) 2008 David Smith <catfish.man@gmail.com>
*
* 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 ElementRareData_h
#define ElementRareData_h
#include "ClassList.h"
#include "DatasetDOMStringMap.h"
#include "Element.h"
#include "ElementShadow.h"
#include "HTMLCollection.h"
#include "NamedNodeMap.h"
#include "NodeRareData.h"
#include "StyleInheritedData.h"
#include <wtf/OwnPtr.h>
namespace WebCore {
class HTMLCollection;
class ElementRareData : public NodeRareData {
public:
ElementRareData();
virtual ~ElementRareData();
void resetComputedStyle();
using NodeRareData::needsFocusAppearanceUpdateSoonAfterAttach;
using NodeRareData::setNeedsFocusAppearanceUpdateSoonAfterAttach;
using NodeRareData::styleAffectedByEmpty;
using NodeRareData::setStyleAffectedByEmpty;
using NodeRareData::isInCanvasSubtree;
using NodeRareData::setIsInCanvasSubtree;
#if ENABLE(FULLSCREEN_API)
using NodeRareData::containsFullScreenElement;
using NodeRareData::setContainsFullScreenElement;
#endif
bool hasCachedHTMLCollections() const
{
return m_cachedCollections;
}
PassRefPtr<HTMLCollection> ensureCachedHTMLCollection(Element*, CollectionType);
HTMLCollection* cachedHTMLCollection(CollectionType type)
{
if (!m_cachedCollections)
return 0;
return (*m_cachedCollections)[type - FirstNodeCollectionType];
}
void removeCachedHTMLCollection(HTMLCollection* collection, CollectionType type)
{
ASSERT(m_cachedCollections);
ASSERT_UNUSED(collection, (*m_cachedCollections)[type - FirstNodeCollectionType] == collection);
(*m_cachedCollections)[type - FirstNodeCollectionType] = 0;
}
void clearHTMLCollectionCaches(const QualifiedName* attrName)
{
if (!m_cachedCollections)
return;
bool shouldIgnoreType = !attrName || *attrName == HTMLNames::idAttr || *attrName == HTMLNames::nameAttr;
for (unsigned i = 0; i < (*m_cachedCollections).size(); i++) {
if (HTMLCollection* collection = (*m_cachedCollections)[i]) {
if (shouldIgnoreType || DynamicNodeListCacheBase::shouldInvalidateTypeOnAttributeChange(collection->invalidationType(), *attrName))
collection->invalidateCache();
}
}
}
void adoptTreeScope(Document* oldDocument, Document* newDocument)
{
if (!m_cachedCollections)
return;
for (unsigned i = 0; i < (*m_cachedCollections).size(); i++) {
HTMLCollection* collection = (*m_cachedCollections)[i];
if (!collection)
continue;
collection->invalidateCache();
if (oldDocument != newDocument) {
oldDocument->unregisterNodeListCache(collection);
newDocument->registerNodeListCache(collection);
}
}
}
virtual void reportMemoryUsage(MemoryObjectInfo*) const OVERRIDE;
typedef FixedArray<HTMLCollection*, NumNodeCollectionTypes> CachedHTMLCollectionArray;
OwnPtr<CachedHTMLCollectionArray> m_cachedCollections;
LayoutSize m_minimumSizeForResizing;
RefPtr<RenderStyle> m_computedStyle;
OwnPtr<DatasetDOMStringMap> m_datasetDOMStringMap;
OwnPtr<ClassList> m_classList;
OwnPtr<ElementShadow> m_shadow;
OwnPtr<NamedNodeMap> m_attributeMap;
IntSize m_savedLayerScrollOffset;
};
inline IntSize defaultMinimumSizeForResizing()
{
return IntSize(MAX_LAYOUT_UNIT, MAX_LAYOUT_UNIT);
}
inline ElementRareData::ElementRareData()
: m_minimumSizeForResizing(defaultMinimumSizeForResizing())
{
}
inline ElementRareData::~ElementRareData()
{
ASSERT(!m_shadow);
}
inline void ElementRareData::resetComputedStyle()
{
m_computedStyle.clear();
}
}
#endif // ElementRareData_h
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