Source/WebCore/bindings/v8/custom/V8AudioContextCustom.cpp

/*
 * Copyright (C) 2010, 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:
 * 1.  Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2.  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.
 *
 * THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS 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 APPLE INC. OR ITS 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
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#include "config.h"

#if ENABLE(WEB_AUDIO)

#include "V8AudioContext.h"

#include "AudioContext.h"
#include "Frame.h"
#include "V8Proxy.h"

namespace WebCore {

v8::Handle<v8::Value> V8AudioContext::constructorCallback(const v8::Arguments& args)
{
    INC_STATS("DOM.AudioContext.Contructor");

    Frame* frame = V8Proxy::retrieveFrameForCurrentContext();
    if (!frame)
        return throwError("AudioContext constructor associated frame is unavailable", V8Proxy::ReferenceError);

    Document* document = frame->document();
    if (!document)
        return throwError("AudioContext constructor associated document is unavailable", V8Proxy::ReferenceError);

    RefPtr<AudioContext> audioContext = AudioContext::create(document);
    
    // Transform the holder into a wrapper object for the audio context.
    V8DOMWrapper::setDOMWrapper(args.Holder(), &info, audioContext.get());
    audioContext->ref();
    
    return args.Holder();
}

} // namespace WebCore

#endif // ENABLE(WEB_AUDIO)