WebCore/bindings/v8/custom/V8HTMLOptionElementConstructor.cpp

/*
 * Copyright (C) 2009 Google Inc. All rights reserved.
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 * modification, are permitted provided that the following conditions are
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 *
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 * notice, this list of conditions and the following disclaimer.
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 * copyright notice, this list of conditions and the following disclaimer
 * in the documentation and/or other materials provided with the
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 * contributors may be used to endorse or promote products derived from
 * this software without specific prior written permission.
 * 
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 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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#include "config.h"
#include "V8HTMLOptionElementConstructor.h"

#include "HTMLOptionElement.h"
#include "Document.h"
#include "Frame.h"
#include "HTMLNames.h"
#include "Text.h"
#include "V8Binding.h"
#include "V8HTMLOptionElement.h"
#include "V8Proxy.h"

#include <wtf/RefPtr.h>

namespace WebCore {

v8::Persistent<v8::FunctionTemplate> V8HTMLOptionElementConstructor::GetTemplate()
{
    static v8::Persistent<v8::FunctionTemplate> cachedTemplate;
    if (!cachedTemplate.IsEmpty())
        return cachedTemplate;

    v8::HandleScope scope;
    v8::Local<v8::FunctionTemplate> result = v8::FunctionTemplate::New(USE_CALLBACK(HTMLOptionElementConstructor));

    v8::Local<v8::ObjectTemplate> instance = result->InstanceTemplate();
    instance->SetInternalFieldCount(V8HTMLOptionElement::internalFieldCount);
    result->SetClassName(v8::String::New("HTMLOptionElement"));
    result->Inherit(V8DOMWrapper::getTemplate(V8ClassIndex::HTMLOPTIONELEMENT));

    cachedTemplate = v8::Persistent<v8::FunctionTemplate>::New(result);
    return cachedTemplate;
}

v8::Handle<v8::Value> V8Custom::v8HTMLOptionElementConstructorCallback(const v8::Arguments& args)
{
    INC_STATS("DOM.HTMLOptionElement.Contructor");

    if (!args.IsConstructCall())
        return throwError("DOM object constructor cannot be called as a function.");

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

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

    RefPtr<HTMLOptionElement> option = new HTMLOptionElement(HTMLNames::optionTag, document);

    ExceptionCode ec = 0;
    RefPtr<Text> text = document->createTextNode("");
    if (args.Length() > 0) {
        if (!args[0]->IsUndefined()) {
            text->setData(toWebCoreString(args[0]), ec);
            if (ec)
                throwError(ec);
        }

        option->appendChild(text.release(), ec);
        if (ec)
            throwError(ec);

        if (args.Length() > 1) {
            if (!args[1]->IsUndefined())
                option->setValue(toWebCoreString(args[1]));

            if (args.Length() > 2) {
                option->setDefaultSelected(args[2]->BooleanValue());
                if (args.Length() > 3)
                    option->setSelected(args[3]->BooleanValue());
            }
        }
    }

    V8DOMWrapper::setDOMWrapper(args.Holder(), V8ClassIndex::ToInt(V8ClassIndex::NODE), option.get());
    option->ref();
    V8DOMWrapper::setJSWrapperForDOMNode(option.get(), v8::Persistent<v8::Object>::New(args.Holder()));
    return args.Holder();
}

} // namespace WebCore