Source/bindings/v8/custom/V8MutationObserverCustom.cpp

/*
 * Copyright (C) 2011 Google Inc. All rights reserved.
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 * in the documentation and/or other materials provided with the
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 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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#include "config.h"

#include "V8MutationObserver.h"

#include "bindings/v8/V8Binding.h"
#include "bindings/v8/V8DOMWrapper.h"
#include "bindings/v8/V8MutationCallback.h"
#include "bindings/v8/V8Utilities.h"
#include "core/dom/ExceptionCode.h"
#include "core/dom/MutationObserver.h"

namespace WebCore {

void V8MutationObserver::constructorCustom(const v8::FunctionCallbackInfo<v8::Value>& args)
{
    if (args.Length() < 1) {
        throwNotEnoughArgumentsError(args.GetIsolate());
        return;
    }

    v8::Local<v8::Value> arg = args[0];
    if (!arg->IsFunction()) {
        throwTypeError("Callback argument must be a function", args.GetIsolate());
        return;
    }

    ScriptExecutionContext* context = getScriptExecutionContext();
    v8::Handle<v8::Object> wrapper = args.Holder();

    RefPtr<MutationCallback> callback = V8MutationCallback::create(v8::Handle<v8::Function>::Cast(arg), context, wrapper, args.GetIsolate());
    RefPtr<MutationObserver> observer = MutationObserver::create(callback.release());

    V8DOMWrapper::associateObjectWithWrapper<V8MutationObserver>(observer.release(), &info, wrapper, args.GetIsolate(), WrapperConfiguration::Dependent);
    args.GetReturnValue().Set(wrapper);
}

} // namespace WebCore