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82 lines
3.0 KiB
C++
82 lines
3.0 KiB
C++
/*
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* Copyright (C) 2012 Google Inc. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are
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* met:
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*
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* * Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* * Neither the name of Google Inc. nor the names of its
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* contributors may be used to endorse or promote products derived from
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* this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#ifndef SKY_ENGINE_CORE_DOM_USERACTIONELEMENTSET_H_
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#define SKY_ENGINE_CORE_DOM_USERACTIONELEMENTSET_H_
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#include "sky/engine/platform/heap/Handle.h"
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#include "sky/engine/wtf/HashMap.h"
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#include "sky/engine/wtf/PassOwnPtr.h"
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#include "sky/engine/wtf/RefPtr.h"
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namespace blink {
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class Node;
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class Element;
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class UserActionElementSet final {
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DISALLOW_ALLOCATION();
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public:
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bool isActive(const Node* node) { return hasFlags(node, IsActiveFlag); }
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bool isInActiveChain(const Node* node) { return hasFlags(node, InActiveChainFlag); }
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bool isHovered(const Node* node) { return hasFlags(node, IsHoveredFlag); }
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void setActive(Node* node, bool enable) { setFlags(node, enable, IsActiveFlag); }
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void setInActiveChain(Node* node, bool enable) { setFlags(node, enable, InActiveChainFlag); }
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void setHovered(Node* node, bool enable) { setFlags(node, enable, IsHoveredFlag); }
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UserActionElementSet();
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~UserActionElementSet();
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void didDetach(Node*);
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#if !ENABLE(OILPAN)
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void documentDidRemoveLastRef();
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#endif
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private:
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enum ElementFlags {
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IsActiveFlag = 1 ,
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InActiveChainFlag = 1 << 1,
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IsHoveredFlag = 1 << 2,
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};
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void setFlags(Node* node, bool enable, unsigned flags) { enable ? setFlags(node, flags) : clearFlags(node, flags); }
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void setFlags(Node*, unsigned);
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void clearFlags(Node*, unsigned);
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bool hasFlags(const Node*, unsigned flags) const;
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void setFlags(Element*, unsigned);
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void clearFlags(Element*, unsigned);
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bool hasFlags(const Element*, unsigned flags) const;
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typedef HashMap<RefPtr<Element>, unsigned> ElementFlagMap;
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ElementFlagMap m_elements;
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};
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} // namespace
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#endif // SKY_ENGINE_CORE_DOM_USERACTIONELEMENTSET_H_
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