1/*
2 * Copyright (C) 2008 Apple 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 MessageChannel_h
28#define MessageChannel_h
29
30#include "bindings/core/v8/ScriptWrappable.h"
31#include "platform/heap/Handle.h"
32#include "wtf/PassRefPtr.h"
33#include "wtf/RefCounted.h"
34#include "wtf/RefPtr.h"
35
36namespace blink {
37
38class MessagePort;
39class ExecutionContext;
40
41class MessageChannel FINAL : public RefCountedWillBeGarbageCollected<MessageChannel>, public ScriptWrappable {
42    DECLARE_EMPTY_DESTRUCTOR_WILL_BE_REMOVED(MessageChannel);
43    DEFINE_WRAPPERTYPEINFO();
44public:
45    static PassRefPtrWillBeRawPtr<MessageChannel> create(ExecutionContext* context)
46    {
47        return adoptRefWillBeNoop(new MessageChannel(context));
48    }
49
50    MessagePort* port1() const { return m_port1.get(); }
51    MessagePort* port2() const { return m_port2.get(); }
52
53    void trace(Visitor*);
54
55private:
56    explicit MessageChannel(ExecutionContext*);
57
58    RefPtrWillBeMember<MessagePort> m_port1;
59    RefPtrWillBeMember<MessagePort> m_port2;
60};
61
62} // namespace blink
63
64#endif // MessageChannel_h
65