/*

 * Copyright (C) 2007, 2008 Apple Inc. All rights reserved.

 *

 * Redistribution and use in source and binary forms, with or without

 * 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.

 *

 * THIS SOFTWARE IS PROVIDED BY APPLE COMPUTER, INC. ``AS IS'' AND ANY

 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE

 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR

 * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL APPLE COMPUTER, INC. OR

 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,

 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,

 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR

 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY

 * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT

 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE

 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 

 */

#ifndef WebKitCSSKeyframesRule_h

#define WebKitCSSKeyframesRule_h

#include "CSSRule.h"

#include <wtf/RefPtr.h>

#include "AtomicString.h"

namespace WebCore {

class CSSRuleList;

class WebKitCSSKeyframeRule;

class String;

typedef int ExceptionCode;

class WebKitCSSKeyframesRule : public CSSRule {

public:

    static PassRefPtr<WebKitCSSKeyframesRule> create()

    {

        return adoptRef(new WebKitCSSKeyframesRule(0));

    }

    static PassRefPtr<WebKitCSSKeyframesRule> create(CSSStyleSheet* parent)

    {

        return adoptRef(new WebKitCSSKeyframesRule(parent));

    }

    ~WebKitCSSKeyframesRule();

    virtual bool isKeyframesRule() { return true; }

    // Inherited from CSSRule

    virtual unsigned short type() const { return WEBKIT_KEYFRAMES_RULE; }

    String name() const;

    void setName(const String&);

    // This version of setName does not call styleSheetChanged to avoid

    // unnecessary work. It assumes callers will either make that call

    // themselves, or know that it will get called later.

    void setNameInternal(const String& name)

    {   

        m_name = AtomicString(name);

    }

    CSSRuleList* cssRules() { return m_lstCSSRules.get(); }

    void insertRule(const String& rule);

    void deleteRule(const String& key);

    WebKitCSSKeyframeRule* findRule(const String& key);

    virtual String cssText() const;

    /* not part of the DOM */

    unsigned length() const;

    WebKitCSSKeyframeRule*        item(unsigned index);

    const WebKitCSSKeyframeRule*  item(unsigned index) const;

    void append(WebKitCSSKeyframeRule* rule);

private:

    WebKitCSSKeyframesRule(CSSStyleSheet* parent);

    int findRuleIndex(const String& key) const;

    RefPtr<CSSRuleList> m_lstCSSRules;

    AtomicString m_name;

};

} // namespace WebCore

#endif // WebKitCSSKeyframesRule_h