Source/bindings/v8/custom/V8AudioContextCustom.cpp

/*
 * Copyright (C) 2010, Google Inc. All rights reserved.
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 * Redistribution and use in source and binary forms, with or without
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#include "config.h"

#if ENABLE(WEB_AUDIO)

#include "V8AudioContext.h"

#include "V8AudioBuffer.h"
#include "V8OfflineAudioContext.h"
#include "bindings/v8/V8Binding.h"
#include "bindings/v8/custom/V8ArrayBufferCustom.h"
#include "core/dom/Document.h"
#include "core/page/Frame.h"
#include "modules/webaudio/AudioBuffer.h"
#include "modules/webaudio/AudioContext.h"
#include "modules/webaudio/OfflineAudioContext.h"
#include "wtf/ArrayBuffer.h"

namespace WebCore {

void V8AudioContext::constructorCustom(const v8::FunctionCallbackInfo<v8::Value>& args)
{
    Document* document = currentDocument();

    RefPtr<AudioContext> audioContext;
    
    if (!args.Length()) {
        // Constructor for default AudioContext which talks to audio hardware.
        audioContext = AudioContext::create(document);
        if (!audioContext.get()) {
            throwError(v8SyntaxError, "audio resources unavailable for AudioContext construction", args.GetIsolate());
            return;
        }
    } else {
        // Constructor for offline (render-target) AudioContext which renders into an AudioBuffer.
        // new AudioContext(in unsigned long numberOfChannels, in unsigned long numberOfFrames, in float sampleRate);
        document->addConsoleMessage(JSMessageSource, WarningMessageLevel,
            "Deprecated AudioContext constructor: use OfflineAudioContext instead");

        V8OfflineAudioContext::constructorCallback(args);
        return;
    }

    if (!audioContext.get()) {
        throwError(v8SyntaxError, "Error creating AudioContext", args.GetIsolate());
        return;
    }
    
    // Transform the holder into a wrapper object for the audio context.
    v8::Handle<v8::Object> wrapper = args.Holder();
    V8DOMWrapper::associateObjectWithWrapper<V8AudioContext>(audioContext.release(), &info, wrapper, args.GetIsolate(), WrapperConfiguration::Dependent);
    args.GetReturnValue().Set(wrapper);
}

} // namespace WebCore

#endif // ENABLE(WEB_AUDIO)