1/*
2 * Copyright (C) 2014 Google Inc. All Rights Reserved.
3 *
4 * Redistribution and use in source and binary forms, with or without
5 * modification, are permitted provided that the following conditions
6 * are met:
7 * 1. Redistributions of source code must retain the above copyright
8 *    notice, this list of conditions and the following disclaimer.
9 * 2. Redistributions in binary form must reproduce the above copyright
10 *    notice, this list of conditions and the following disclaimer in the
11 *    documentation and/or other materials provided with the distribution.
12 *
13 * THIS SOFTWARE IS PROVIDED BY APPLE COMPUTER, INC. ``AS IS'' AND ANY
14 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
15 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
16 * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL APPLE COMPUTER, INC. OR
17 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
18 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
19 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
20 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
21 * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
22 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
23 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
24 *
25 */
26
27#ifndef NodeEventContext_h
28#define NodeEventContext_h
29
30#include "core/events/TreeScopeEventContext.h"
31#include "wtf/PassRefPtr.h"
32#include "wtf/RefPtr.h"
33
34namespace blink {
35
36class EventTarget;
37class Node;
38class TouchEventContext;
39
40class NodeEventContext {
41    ALLOW_ONLY_INLINE_ALLOCATION();
42    DECLARE_EMPTY_DESTRUCTOR_WILL_BE_REMOVED(NodeEventContext);
43public:
44    // FIXME: Use ContainerNode instead of Node.
45    NodeEventContext(PassRefPtrWillBeRawPtr<Node>, PassRefPtrWillBeRawPtr<EventTarget> currentTarget);
46    void trace(Visitor*);
47
48    Node* node() const { return m_node.get(); }
49
50    void setTreeScopeEventContext(PassRefPtrWillBeRawPtr<TreeScopeEventContext> prpTreeScopeEventContext) { m_treeScopeEventContext = prpTreeScopeEventContext; }
51    TreeScopeEventContext& treeScopeEventContext() { ASSERT(m_treeScopeEventContext); return *m_treeScopeEventContext; }
52
53    EventTarget* target() const { return m_treeScopeEventContext->target(); }
54    EventTarget* relatedTarget() const { return m_treeScopeEventContext->relatedTarget(); }
55    TouchEventContext* touchEventContext() const { return m_treeScopeEventContext->touchEventContext(); }
56
57    bool currentTargetSameAsTarget() const { return m_currentTarget.get() == target(); }
58    void handleLocalEvents(Event*) const;
59
60private:
61    RefPtrWillBeMember<Node> m_node;
62    RefPtrWillBeMember<EventTarget> m_currentTarget;
63    RefPtrWillBeMember<TreeScopeEventContext> m_treeScopeEventContext;
64};
65
66} // namespace blink
67
68#if !ENABLE(OILPAN)
69WTF_ALLOW_MOVE_INIT_AND_COMPARE_WITH_MEM_FUNCTIONS(blink::NodeEventContext);
70#else
71namespace WTF {
72template <> struct VectorTraits<blink::NodeEventContext> : SimpleClassVectorTraits<blink::NodeEventContext> {
73    static const bool needsDestruction = false;
74};
75}
76#endif
77
78#endif // NodeEventContext_h
79