root/Source/modules/websockets/ThreadableWebSocketChannelClientWrapper.cpp

DEFINITIONS

1. m_suspended
2. create
3. subprotocol
4. setSubprotocol
5. extensions
6. setExtensions
7. clearClient
8. didConnect
9. didReceiveMessage
10. didReceiveBinaryData
11. didUpdateBufferedAmount
12. didStartClosingHandshake
13. didClose
14. didReceiveMessageError
15. suspend
16. resume
17. processPendingTasks
18. didConnectCallback
19. didReceiveMessageCallback
20. didReceiveBinaryDataCallback
21. didUpdateBufferedAmountCallback
22. didStartClosingHandshakeCallback
23. didCloseCallback
24. didReceiveMessageErrorCallback

/*
 * Copyright (C) 2011 Google Inc.  All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are
 * met:
 *
 *     * Redistributions of source code must retain the above copyright
 * notice, this list of conditions and the following disclaimer.
 *     * Redistributions in binary form must reproduce the above
 * copyright notice, this list of conditions and the following disclaimer
 * in the documentation and/or other materials provided with the
 * distribution.
 *     * Neither the name of Google Inc. nor the names of its
 * contributors may be used to endorse or promote products derived from
 * this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */

#include "config.h"
#include "modules/websockets/ThreadableWebSocketChannelClientWrapper.h"

#include "core/dom/CrossThreadTask.h"
#include "core/dom/ExecutionContext.h"
#include "platform/CrossThreadCopier.h"
#include "wtf/PassRefPtr.h"
#include "wtf/RefPtr.h"

namespace WebCore {

ThreadableWebSocketChannelClientWrapper::ThreadableWebSocketChannelClientWrapper(WebSocketChannelClient* client)
    : m_client(client)
    , m_suspended(false)
{
}

PassRefPtr<ThreadableWebSocketChannelClientWrapper> ThreadableWebSocketChannelClientWrapper::create(WebSocketChannelClient* client)
{
    return adoptRef(new ThreadableWebSocketChannelClientWrapper(client));
}

String ThreadableWebSocketChannelClientWrapper::subprotocol() const
{
    if (m_subprotocol.isEmpty())
        return emptyString();
    return String(m_subprotocol);
}

void ThreadableWebSocketChannelClientWrapper::setSubprotocol(const String& subprotocol)
{
    m_subprotocol.clear();
    append(m_subprotocol, subprotocol);
}

String ThreadableWebSocketChannelClientWrapper::extensions() const
{
    if (m_extensions.isEmpty())
        return emptyString();
    return String(m_extensions);
}

void ThreadableWebSocketChannelClientWrapper::setExtensions(const String& extensions)
{
    m_extensions.clear();
    append(m_extensions, extensions);
}

void ThreadableWebSocketChannelClientWrapper::clearClient()
{
    m_client = 0;
}

void ThreadableWebSocketChannelClientWrapper::didConnect()
{
    m_pendingTasks.append(createCallbackTask(&didConnectCallback, this));
    if (!m_suspended)
        processPendingTasks();
}

void ThreadableWebSocketChannelClientWrapper::didReceiveMessage(const String& message)
{
    m_pendingTasks.append(createCallbackTask(&didReceiveMessageCallback, this, message));
    if (!m_suspended)
        processPendingTasks();
}

void ThreadableWebSocketChannelClientWrapper::didReceiveBinaryData(PassOwnPtr<Vector<char> > binaryData)
{
    m_pendingTasks.append(createCallbackTask(&didReceiveBinaryDataCallback, this, binaryData));
    if (!m_suspended)
        processPendingTasks();
}

void ThreadableWebSocketChannelClientWrapper::didUpdateBufferedAmount(unsigned long bufferedAmount)
{
    m_pendingTasks.append(createCallbackTask(&didUpdateBufferedAmountCallback, this, bufferedAmount));
    if (!m_suspended)
        processPendingTasks();
}

void ThreadableWebSocketChannelClientWrapper::didStartClosingHandshake()
{
    m_pendingTasks.append(createCallbackTask(&didStartClosingHandshakeCallback, this));
    if (!m_suspended)
        processPendingTasks();
}

void ThreadableWebSocketChannelClientWrapper::didClose(unsigned long unhandledBufferedAmount, WebSocketChannelClient::ClosingHandshakeCompletionStatus closingHandshakeCompletion, unsigned short code, const String& reason)
{
    m_pendingTasks.append(createCallbackTask(&didCloseCallback, this, unhandledBufferedAmount, closingHandshakeCompletion, code, reason));
    if (!m_suspended)
        processPendingTasks();
}

void ThreadableWebSocketChannelClientWrapper::didReceiveMessageError()
{
    m_pendingTasks.append(createCallbackTask(&didReceiveMessageErrorCallback, this));
    if (!m_suspended)
        processPendingTasks();
}

void ThreadableWebSocketChannelClientWrapper::suspend()
{
    m_suspended = true;
}

void ThreadableWebSocketChannelClientWrapper::resume()
{
    m_suspended = false;
    processPendingTasks();
}

void ThreadableWebSocketChannelClientWrapper::processPendingTasks()
{
    if (m_suspended)
        return;
    Vector<OwnPtr<ExecutionContextTask> > tasks;
    tasks.swap(m_pendingTasks);
    for (Vector<OwnPtr<ExecutionContextTask> >::const_iterator iter = tasks.begin(); iter != tasks.end(); ++iter)
        (*iter)->performTask(0);
}

void ThreadableWebSocketChannelClientWrapper::didConnectCallback(ExecutionContext* context, PassRefPtr<ThreadableWebSocketChannelClientWrapper> wrapper)
{
    ASSERT_UNUSED(context, !context);
    if (wrapper->m_client)
        wrapper->m_client->didConnect();
}

void ThreadableWebSocketChannelClientWrapper::didReceiveMessageCallback(ExecutionContext* context, PassRefPtr<ThreadableWebSocketChannelClientWrapper> wrapper, const String& message)
{
    ASSERT_UNUSED(context, !context);
    if (wrapper->m_client)
        wrapper->m_client->didReceiveMessage(message);
}

void ThreadableWebSocketChannelClientWrapper::didReceiveBinaryDataCallback(ExecutionContext* context, PassRefPtr<ThreadableWebSocketChannelClientWrapper> wrapper, PassOwnPtr<Vector<char> > binaryData)
{
    ASSERT_UNUSED(context, !context);
    if (wrapper->m_client)
        wrapper->m_client->didReceiveBinaryData(binaryData);
}

void ThreadableWebSocketChannelClientWrapper::didUpdateBufferedAmountCallback(ExecutionContext* context, PassRefPtr<ThreadableWebSocketChannelClientWrapper> wrapper, unsigned long bufferedAmount)
{
    ASSERT_UNUSED(context, !context);
    if (wrapper->m_client)
        wrapper->m_client->didUpdateBufferedAmount(bufferedAmount);
}

void ThreadableWebSocketChannelClientWrapper::didStartClosingHandshakeCallback(ExecutionContext* context, PassRefPtr<ThreadableWebSocketChannelClientWrapper> wrapper)
{
    ASSERT_UNUSED(context, !context);
    if (wrapper->m_client)
        wrapper->m_client->didStartClosingHandshake();
}

void ThreadableWebSocketChannelClientWrapper::didCloseCallback(ExecutionContext* context, PassRefPtr<ThreadableWebSocketChannelClientWrapper> wrapper, unsigned long unhandledBufferedAmount, WebSocketChannelClient::ClosingHandshakeCompletionStatus closingHandshakeCompletion, unsigned short code, const String& reason)
{
    ASSERT_UNUSED(context, !context);
    if (wrapper->m_client)
        wrapper->m_client->didClose(unhandledBufferedAmount, closingHandshakeCompletion, code, reason);
}

void ThreadableWebSocketChannelClientWrapper::didReceiveMessageErrorCallback(ExecutionContext* context, PassRefPtr<ThreadableWebSocketChannelClientWrapper> wrapper)
{
    ASSERT_UNUSED(context, !context);
    if (wrapper->m_client)
        wrapper->m_client->didReceiveMessageError();
}

} // namespace WebCore