Source/WebCore/bindings/v8/custom/V8MessagePortCustom.cpp

/*
 * Copyright (C) 2009, 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.
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 * 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
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 */

#include "config.h"

#include <wtf/ArrayBuffer.h>
#include "ExceptionCode.h"
#include "MessagePort.h"
#include "SerializedScriptValue.h"
#include "V8Binding.h"
#include "V8MessagePort.h"
#include "V8Utilities.h"
#include "WorkerContextExecutionProxy.h"

namespace WebCore {

static v8::Handle<v8::Value> handlePostMessageCallback(const v8::Arguments& args)
{
    MessagePort* messagePort = V8MessagePort::toNative(args.Holder());
    MessagePortArray portArray;
    ArrayBufferArray arrayBufferArray;
    if (args.Length() > 1) {
        if (!extractTransferables(args[1], portArray, arrayBufferArray, args.GetIsolate()))
            return v8::Undefined();
    }
    bool didThrow = false;
    RefPtr<SerializedScriptValue> message =
        SerializedScriptValue::create(args[0],
                                      &portArray,
                                      &arrayBufferArray,
                                      didThrow,
                                      args.GetIsolate());
    if (didThrow)
        return v8::Undefined();
    ExceptionCode ec = 0;
    messagePort->postMessage(message.release(), &portArray, ec);
    return setDOMException(ec, args.GetIsolate());
}

v8::Handle<v8::Value> V8MessagePort::postMessageCallback(const v8::Arguments& args)
{
    INC_STATS("DOM.MessagePort.postMessage");
    return handlePostMessageCallback(args);
}

#if ENABLE(LEGACY_VENDOR_PREFIXES)
v8::Handle<v8::Value> V8MessagePort::webkitPostMessageCallback(const v8::Arguments& args)
{
    INC_STATS("DOM.MessagePort.webkitPostMessage");
    return handlePostMessageCallback(args);
}
#endif

} // namespace WebCore