mirror of
https://github.com/flutter/flutter.git
synced 2026-02-20 02:29:02 +08:00
102 lines
3.2 KiB
C++
102 lines
3.2 KiB
C++
/*
|
|
* Copyright (C) 2008, 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 NodeRareData_h
|
|
#define NodeRareData_h
|
|
|
|
#include "core/dom/Element.h"
|
|
#include "core/dom/MutationObserverRegistration.h"
|
|
#include "platform/heap/Handle.h"
|
|
#include "wtf/HashSet.h"
|
|
#include "wtf/OwnPtr.h"
|
|
#include "wtf/PassOwnPtr.h"
|
|
|
|
namespace blink {
|
|
|
|
class NodeMutationObserverData FINAL : public NoBaseWillBeGarbageCollected<NodeMutationObserverData> {
|
|
WTF_MAKE_NONCOPYABLE(NodeMutationObserverData);
|
|
WTF_MAKE_FAST_ALLOCATED_WILL_BE_REMOVED;
|
|
public:
|
|
WillBeHeapVector<OwnPtrWillBeMember<MutationObserverRegistration> > registry;
|
|
WillBeHeapHashSet<RawPtrWillBeMember<MutationObserverRegistration> > transientRegistry;
|
|
|
|
static PassOwnPtrWillBeRawPtr<NodeMutationObserverData> create()
|
|
{
|
|
return adoptPtrWillBeNoop(new NodeMutationObserverData);
|
|
}
|
|
|
|
void trace(Visitor* visitor)
|
|
{
|
|
#if ENABLE(OILPAN)
|
|
visitor->trace(registry);
|
|
visitor->trace(transientRegistry);
|
|
#endif
|
|
}
|
|
|
|
private:
|
|
NodeMutationObserverData() { }
|
|
};
|
|
|
|
class NodeRareData : public NoBaseWillBeGarbageCollectedFinalized<NodeRareData>, public NodeRareDataBase {
|
|
WTF_MAKE_NONCOPYABLE(NodeRareData);
|
|
WTF_MAKE_FAST_ALLOCATED_WILL_BE_REMOVED;
|
|
public:
|
|
static NodeRareData* create(RenderObject* renderer)
|
|
{
|
|
return new NodeRareData(renderer);
|
|
}
|
|
|
|
NodeMutationObserverData* mutationObserverData() { return m_mutationObserverData.get(); }
|
|
NodeMutationObserverData& ensureMutationObserverData()
|
|
{
|
|
if (!m_mutationObserverData)
|
|
m_mutationObserverData = NodeMutationObserverData::create();
|
|
return *m_mutationObserverData;
|
|
}
|
|
|
|
bool hasElementFlag(ElementFlags mask) const { return m_elementFlags & mask; }
|
|
void setElementFlag(ElementFlags mask, bool value) { m_elementFlags = (m_elementFlags & ~mask) | (-(int32_t)value & mask); }
|
|
void clearElementFlag(ElementFlags mask) { m_elementFlags &= ~mask; }
|
|
|
|
void trace(Visitor*);
|
|
|
|
void traceAfterDispatch(Visitor*);
|
|
void finalizeGarbageCollectedObject();
|
|
|
|
protected:
|
|
explicit NodeRareData(RenderObject* renderer)
|
|
: NodeRareDataBase(renderer)
|
|
, m_elementFlags(0)
|
|
, m_isElementRareData(false)
|
|
{ }
|
|
|
|
private:
|
|
OwnPtrWillBeMember<NodeMutationObserverData> m_mutationObserverData;
|
|
|
|
unsigned m_elementFlags : NumberOfElementFlags;
|
|
protected:
|
|
unsigned m_isElementRareData : 1;
|
|
};
|
|
|
|
} // namespace blink
|
|
|
|
#endif // NodeRareData_h
|