/*
 * Copyright (C) 2013 Google Inc. All rights reserved.
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 * modification, are permitted provided that the following conditions are
 * met:
 *
 *     * Redistributions of source code must retain the above copyright
 * notice, this list of conditions and the following disclaimer.
 *     * 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.
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 * 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
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 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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 */

#ifndef CustomElementLifecycleCallbacks_h
#define CustomElementLifecycleCallbacks_h

#include "wtf/RefCounted.h"
#include "wtf/text/AtomicString.h"

namespace WebCore {

class Element;

class CustomElementLifecycleCallbacks : public RefCounted<CustomElementLifecycleCallbacks> {
public:
    virtual ~CustomElementLifecycleCallbacks() { }

    bool hasCreatedCallback() const { return m_which & Created; }
    virtual void created(Element*) = 0;

    bool hasAttachedCallback() const { return m_which & Attached; }
    virtual void attached(Element*) = 0;

    bool hasDetachedCallback() const { return m_which & Detached; }
    virtual void detached(Element*) = 0;

    bool hasAttributeChangedCallback() const { return m_which & AttributeChanged; }
    virtual void attributeChanged(Element*, const AtomicString& name, const AtomicString& oldValue, const AtomicString& newValue) = 0;

    enum CallbackType {
        None             = 0,
        Created          = 1 << 0,
        Attached         = 1 << 1,
        Detached         = 1 << 2,
        AttributeChanged = 1 << 3
    };

protected:
    CustomElementLifecycleCallbacks(CallbackType which) : m_which(which) { }

private:
    CallbackType m_which;
};

}

#endif // CustomElementLifecycleCallbacks_h