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/*
* Copyright (C) 2008, 2009, 2010, 2014 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 "AttributeDOMTokenList.h"
#include "DatasetDOMStringMap.h"
#include "NamedNodeMap.h"
#include "NodeRareData.h"
#include "PseudoElement.h"
#include "RenderElement.h"
#include "ShadowRoot.h"
#include "StyleInheritedData.h"
namespace WebCore {
class ElementRareData : public NodeRareData {
public:
explicit ElementRareData(RenderElement*);
~ElementRareData();
void setBeforePseudoElement(RefPtr<PseudoElement>&&);
void setAfterPseudoElement(RefPtr<PseudoElement>&&);
PseudoElement* beforePseudoElement() const { return m_beforePseudoElement.get(); }
PseudoElement* afterPseudoElement() const { return m_afterPseudoElement.get(); }
void resetComputedStyle();
void resetDynamicRestyleObservations();
short tabIndex() const { return m_tabIndex; }
void setTabIndexExplicitly(short index) { m_tabIndex = index; m_tabIndexWasSetExplicitly = true; }
bool tabIndexSetExplicitly() const { return m_tabIndexWasSetExplicitly; }
void clearTabIndexExplicitly() { m_tabIndex = 0; m_tabIndexWasSetExplicitly = false; }
bool needsFocusAppearanceUpdateSoonAfterAttach() const { return m_needsFocusAppearanceUpdateSoonAfterAttach; }
void setNeedsFocusAppearanceUpdateSoonAfterAttach(bool needs) { m_needsFocusAppearanceUpdateSoonAfterAttach = needs; }
bool styleAffectedByEmpty() const { return m_styleAffectedByEmpty; }
void setStyleAffectedByEmpty(bool value) { m_styleAffectedByEmpty = value; }
RegionOversetState regionOversetState() const { return m_regionOversetState; }
void setRegionOversetState(RegionOversetState state) { m_regionOversetState = state; }
#if ENABLE(FULLSCREEN_API)
bool containsFullScreenElement() { return m_containsFullScreenElement; }
void setContainsFullScreenElement(bool value) { m_containsFullScreenElement = value; }
#endif
bool childrenAffectedByActive() const { return m_childrenAffectedByActive; }
void setChildrenAffectedByActive(bool value) { m_childrenAffectedByActive = value; }
bool childrenAffectedByDrag() const { return m_childrenAffectedByDrag; }
void setChildrenAffectedByDrag(bool value) { m_childrenAffectedByDrag = value; }
bool childrenAffectedByLastChildRules() const { return m_childrenAffectedByLastChildRules; }
void setChildrenAffectedByLastChildRules(bool value) { m_childrenAffectedByLastChildRules = value; }
bool childrenAffectedByBackwardPositionalRules() const { return m_childrenAffectedByBackwardPositionalRules; }
void setChildrenAffectedByBackwardPositionalRules(bool value) { m_childrenAffectedByBackwardPositionalRules = value; }
bool childrenAffectedByPropertyBasedBackwardPositionalRules() const { return m_childrenAffectedByPropertyBasedBackwardPositionalRules; }
void setChildrenAffectedByPropertyBasedBackwardPositionalRules(bool value) { m_childrenAffectedByPropertyBasedBackwardPositionalRules = value; }
unsigned childIndex() const { return m_childIndex; }
void setChildIndex(unsigned index) { m_childIndex = index; }
static ptrdiff_t childIndexMemoryOffset() { return OBJECT_OFFSETOF(ElementRareData, m_childIndex); }
void clearShadowRoot() { m_shadowRoot = nullptr; }
ShadowRoot* shadowRoot() const { return m_shadowRoot.get(); }
void setShadowRoot(RefPtr<ShadowRoot>&& shadowRoot) { m_shadowRoot = WTFMove(shadowRoot); }
NamedNodeMap* attributeMap() const { return m_attributeMap.get(); }
void setAttributeMap(std::unique_ptr<NamedNodeMap> attributeMap) { m_attributeMap = WTFMove(attributeMap); }
RenderStyle* computedStyle() const { return m_computedStyle.get(); }
void setComputedStyle(Ref<RenderStyle>&& computedStyle) { m_computedStyle = WTFMove(computedStyle); }
AttributeDOMTokenList* classList() const { return m_classList.get(); }
void setClassList(std::unique_ptr<AttributeDOMTokenList> classList) { m_classList = WTFMove(classList); }
DatasetDOMStringMap* dataset() const { return m_dataset.get(); }
void setDataset(std::unique_ptr<DatasetDOMStringMap> dataset) { m_dataset = WTFMove(dataset); }
LayoutSize minimumSizeForResizing() const { return m_minimumSizeForResizing; }
void setMinimumSizeForResizing(LayoutSize size) { m_minimumSizeForResizing = size; }
IntPoint savedLayerScrollPosition() const { return m_savedLayerScrollPosition; }
void setSavedLayerScrollPosition(IntPoint position) { m_savedLayerScrollPosition = position; }
bool hasPendingResources() const { return m_hasPendingResources; }
void setHasPendingResources(bool has) { m_hasPendingResources = has; }
private:
short m_tabIndex;
unsigned short m_childIndex;
unsigned m_tabIndexWasSetExplicitly : 1;
unsigned m_needsFocusAppearanceUpdateSoonAfterAttach : 1;
unsigned m_styleAffectedByEmpty : 1;
#if ENABLE(FULLSCREEN_API)
unsigned m_containsFullScreenElement : 1;
#endif
unsigned m_hasPendingResources : 1;
unsigned m_childrenAffectedByHover : 1;
unsigned m_childrenAffectedByActive : 1;
unsigned m_childrenAffectedByDrag : 1;
// Bits for dynamic child matching.
// We optimize for :first-child and :last-child. The other positional child selectors like nth-child or
// *-child-of-type, we will just give up and re-evaluate whenever children change at all.
unsigned m_childrenAffectedByLastChildRules : 1;
unsigned m_childrenAffectedByBackwardPositionalRules : 1;
unsigned m_childrenAffectedByPropertyBasedBackwardPositionalRules : 1;
RegionOversetState m_regionOversetState;
LayoutSize m_minimumSizeForResizing;
IntPoint m_savedLayerScrollPosition;
RefPtr<RenderStyle> m_computedStyle;
std::unique_ptr<DatasetDOMStringMap> m_dataset;
std::unique_ptr<AttributeDOMTokenList> m_classList;
RefPtr<ShadowRoot> m_shadowRoot;
std::unique_ptr<NamedNodeMap> m_attributeMap;
RefPtr<PseudoElement> m_beforePseudoElement;
RefPtr<PseudoElement> m_afterPseudoElement;
void releasePseudoElement(PseudoElement*);
};
inline IntSize defaultMinimumSizeForResizing()
{
return IntSize(LayoutUnit::max(), LayoutUnit::max());
}
inline ElementRareData::ElementRareData(RenderElement* renderer)
: NodeRareData(renderer)
, m_tabIndex(0)
, m_childIndex(0)
, m_tabIndexWasSetExplicitly(false)
, m_needsFocusAppearanceUpdateSoonAfterAttach(false)
, m_styleAffectedByEmpty(false)
#if ENABLE(FULLSCREEN_API)
, m_containsFullScreenElement(false)
#endif
, m_hasPendingResources(false)
, m_childrenAffectedByHover(false)
, m_childrenAffectedByActive(false)
, m_childrenAffectedByDrag(false)
, m_childrenAffectedByLastChildRules(false)
, m_childrenAffectedByBackwardPositionalRules(false)
, m_childrenAffectedByPropertyBasedBackwardPositionalRules(false)
, m_regionOversetState(RegionUndefined)
, m_minimumSizeForResizing(defaultMinimumSizeForResizing())
{
}
inline ElementRareData::~ElementRareData()
{
ASSERT(!m_shadowRoot);
ASSERT(!m_beforePseudoElement);
ASSERT(!m_afterPseudoElement);
}
inline void ElementRareData::setBeforePseudoElement(RefPtr<PseudoElement>&& pseudoElement)
{
ASSERT(!m_beforePseudoElement || !pseudoElement);
m_beforePseudoElement = WTFMove(pseudoElement);
}
inline void ElementRareData::setAfterPseudoElement(RefPtr<PseudoElement>&& pseudoElement)
{
ASSERT(!m_afterPseudoElement || !pseudoElement);
m_afterPseudoElement = WTFMove(pseudoElement);
}
inline void ElementRareData::resetComputedStyle()
{
m_computedStyle = nullptr;
setStyleAffectedByEmpty(false);
setChildIndex(0);
}
inline void ElementRareData::resetDynamicRestyleObservations()
{
setChildrenAffectedByActive(false);
setChildrenAffectedByDrag(false);
setChildrenAffectedByLastChildRules(false);
setChildrenAffectedByBackwardPositionalRules(false);
setChildrenAffectedByPropertyBasedBackwardPositionalRules(false);
}
} // namespace
#endif // ElementRareData_h
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