v8nodecustom.cpp

linux下开源浏览器WebKit的源码,市面上的很多商用浏览器都是移植自WebKit

/*
 * Copyright (C) 2007-2009 Google Inc. All rights reserved.
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 * Redistribution and use in source and binary forms, with or without
 * 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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 * contributors may be used to endorse or promote products derived from
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 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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 */

#include "config.h"
#include "Node.h"

#include "Document.h"
#include "EventListener.h"

#include "V8Binding.h"
#include "V8CustomBinding.h"
#include "V8CustomEventListener.h"
#include "V8Proxy.h"

#include <wtf/RefPtr.h>

namespace WebCore {

CALLBACK_FUNC_DECL(NodeAddEventListener)
{
    INC_STATS("DOM.Node.addEventListener()");
    Node* node = V8Proxy::DOMWrapperToNode<Node>(args.Holder());

    V8Proxy* proxy = V8Proxy::retrieve(node->document()->frame());
    if (!proxy)
        return v8::Undefined();

    RefPtr<EventListener> listener = proxy->FindOrCreateV8EventListener(args[1], false);
    if (listener) {
        String type = toWebCoreString(args[0]);
        bool useCapture = args[2]->BooleanValue();
        node->addEventListener(type, listener, useCapture);
    }
    return v8::Undefined();
}

CALLBACK_FUNC_DECL(NodeRemoveEventListener)
{
    INC_STATS("DOM.Node.removeEventListener()");
    Node* node = V8Proxy::DOMWrapperToNode<Node>(args.Holder());

    V8Proxy* proxy = V8Proxy::retrieve(node->document()->frame());
    // It is possbile that the owner document of the node is detached
    // from the frame, return immediately in this case.
    // See issue http://b/878909
    if (!proxy)
        return v8::Undefined();

    RefPtr<EventListener> listener = proxy->FindV8EventListener(args[1], false);
    if (listener) {
        String type = toWebCoreString(args[0]);
        bool useCapture = args[2]->BooleanValue();
        node->removeEventListener(type, listener.get(), useCapture);
    }

    return v8::Undefined();
}

} // namespace WebCore