1/*
2 * Copyright (C) 2014 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 INC. AND ITS CONTRIBUTORS ``AS IS''
14 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
15 * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
16 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS
17 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
18 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
19 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
20 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
21 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
22 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
23 * THE POSSIBILITY OF SUCH DAMAGE.
24 */
25
26#include "config.h"
27#include "UserMessageHandler.h"
28
29#if ENABLE(USER_MESSAGE_HANDLERS)
30
31#include "Frame.h"
32#include "SerializedScriptValue.h"
33
34namespace WebCore {
35
36UserMessageHandler::UserMessageHandler(Frame& frame, UserMessageHandlerDescriptor& descriptor)
37 : FrameDestructionObserver(&frame)
38 , m_descriptor(&descriptor)
39{
40}
41
42UserMessageHandler::~UserMessageHandler() = default;
43
44ExceptionOr<void> UserMessageHandler::postMessage(RefPtr<SerializedScriptValue>&& value)
45{
46 // Check to see if the descriptor has been removed. This can happen if the host application has
47 // removed the named message handler at the WebKit2 API level.
48 if (!m_descriptor)
49 return Exception { InvalidAccessError };
50
51 m_descriptor->didPostMessage(*this, value.get());
52 return { };
53}
54
55} // namespace WebCore
56
57#endif // ENABLE(USER_MESSAGE_HANDLERS)
58