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/*
* Copyright (C) Research In Motion Limited 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 SVGElementRareData_h
#define SVGElementRareData_h
#include "core/css/StylePropertySet.h"
#include "core/css/resolver/StyleResolver.h"
#include "wtf/HashSet.h"
#include "wtf/Noncopyable.h"
#include "wtf/StdLibExtras.h"
namespace WebCore {
class CSSCursorImageValue;
class SVGCursorElement;
class SVGElement;
class SVGElementInstance;
class SVGElementRareData {
WTF_MAKE_NONCOPYABLE(SVGElementRareData); WTF_MAKE_FAST_ALLOCATED;
public:
SVGElementRareData()
: m_cursorElement(0)
, m_cursorImageValue(0)
, m_correspondingElement(0)
, m_instancesUpdatesBlocked(false)
, m_useOverrideComputedStyle(false)
, m_needsOverrideComputedStyleUpdate(false)
{
}
typedef HashMap<const SVGElement*, SVGElementRareData*> SVGElementRareDataMap;
static SVGElementRareDataMap& rareDataMap()
{
DEFINE_STATIC_LOCAL(SVGElementRareDataMap, rareDataMap, ());
return rareDataMap;
}
static SVGElementRareData* rareDataFromMap(const SVGElement* element)
{
return rareDataMap().get(element);
}
HashSet<SVGElementInstance*>& elementInstances() { return m_elementInstances; }
const HashSet<SVGElementInstance*>& elementInstances() const { return m_elementInstances; }
bool instanceUpdatesBlocked() const { return m_instancesUpdatesBlocked; }
void setInstanceUpdatesBlocked(bool value) { m_instancesUpdatesBlocked = value; }
SVGCursorElement* cursorElement() const { return m_cursorElement; }
void setCursorElement(SVGCursorElement* cursorElement) { m_cursorElement = cursorElement; }
SVGElement* correspondingElement() { return m_correspondingElement; }
void setCorrespondingElement(SVGElement* correspondingElement) { m_correspondingElement = correspondingElement; }
CSSCursorImageValue* cursorImageValue() const { return m_cursorImageValue; }
void setCursorImageValue(CSSCursorImageValue* cursorImageValue) { m_cursorImageValue = cursorImageValue; }
MutableStylePropertySet* animatedSMILStyleProperties() const { return m_animatedSMILStyleProperties.get(); }
MutableStylePropertySet* ensureAnimatedSMILStyleProperties()
{
if (!m_animatedSMILStyleProperties)
m_animatedSMILStyleProperties = MutableStylePropertySet::create(SVGAttributeMode);
return m_animatedSMILStyleProperties.get();
}
void destroyAnimatedSMILStyleProperties()
{
m_animatedSMILStyleProperties.clear();
}
RenderStyle* overrideComputedStyle(Element* element, RenderStyle* parentStyle)
{
ASSERT(element);
if (!m_useOverrideComputedStyle)
return 0;
if (!m_overrideComputedStyle || m_needsOverrideComputedStyleUpdate) {
// The style computed here contains no CSS Animations/Transitions or SMIL induced rules - this is needed to compute the "base value" for the SMIL animation sandwhich model.
m_overrideComputedStyle = element->document().ensureStyleResolver().styleForElement(element, parentStyle, DisallowStyleSharing, MatchAllRulesExcludingSMIL);
m_needsOverrideComputedStyleUpdate = false;
}
ASSERT(m_overrideComputedStyle);
return m_overrideComputedStyle.get();
}
bool useOverrideComputedStyle() const { return m_useOverrideComputedStyle; }
void setUseOverrideComputedStyle(bool value) { m_useOverrideComputedStyle = value; }
void setNeedsOverrideComputedStyleUpdate() { m_needsOverrideComputedStyleUpdate = true; }
private:
HashSet<SVGElementInstance*> m_elementInstances;
SVGCursorElement* m_cursorElement;
CSSCursorImageValue* m_cursorImageValue;
SVGElement* m_correspondingElement;
bool m_instancesUpdatesBlocked : 1;
bool m_useOverrideComputedStyle : 1;
bool m_needsOverrideComputedStyleUpdate : 1;
RefPtr<MutableStylePropertySet> m_animatedSMILStyleProperties;
RefPtr<RenderStyle> m_overrideComputedStyle;
};
}
#endif
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