/*
 * Copyright (C) 2013 Google Inc. All rights reserved.
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 * 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.
 * 3. Neither the name of Google Inc. nor the names of its contributors
 *    may be used to endorse or promote products derived from this
 *    software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
 * "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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 */

#ifndef CustomElementCallbackInvocation_h
#define CustomElementCallbackInvocation_h

#include "core/dom/custom/CustomElementLifecycleCallbacks.h"
#include "wtf/PassOwnPtr.h"
#include "wtf/PassRefPtr.h"
#include "wtf/RefPtr.h"
#include "wtf/text/AtomicString.h"

namespace WebCore {

class Element;

class CustomElementCallbackInvocation {
    WTF_MAKE_NONCOPYABLE(CustomElementCallbackInvocation);
public:
    static PassOwnPtr<CustomElementCallbackInvocation> createInvocation(PassRefPtr<CustomElementLifecycleCallbacks>, CustomElementLifecycleCallbacks::CallbackType);
    static PassOwnPtr<CustomElementCallbackInvocation> createAttributeChangedInvocation(PassRefPtr<CustomElementLifecycleCallbacks>, const AtomicString& name, const AtomicString& oldValue, const AtomicString& newValue);

    virtual ~CustomElementCallbackInvocation() { }
    virtual void dispatch(Element*) = 0;
    virtual bool isCreated() const { return false; }

protected:
    CustomElementCallbackInvocation(PassRefPtr<CustomElementLifecycleCallbacks> callbacks)
        : m_callbacks(callbacks)
    {
    }

    CustomElementLifecycleCallbacks* callbacks() { return m_callbacks.get(); }

private:
    RefPtr<CustomElementLifecycleCallbacks> m_callbacks;
};

}

#endif // CustomElementCallbackInvocation_h