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      1 /*
      2  * Copyright (C) 2007, 2008 Apple Inc. All rights reserved.
      3  *
      4  * Redistribution and use in source and binary forms, with or without
      5  * modification, are permitted provided that the following conditions
      6  * are met:
      7  * 1. Redistributions of source code must retain the above copyright
      8  *    notice, this list of conditions and the following disclaimer.
      9  * 2. Redistributions in binary form must reproduce the above copyright
     10  *    notice, this list of conditions and the following disclaimer in the
     11  *    documentation and/or other materials provided with the distribution.
     12  *
     13  * THIS SOFTWARE IS PROVIDED BY APPLE COMPUTER, INC. ``AS IS'' AND ANY
     14  * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     15  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     16  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL APPLE COMPUTER, INC. OR
     17  * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
     18  * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
     19  * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
     20  * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
     21  * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
     22  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
     23  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     24  */
     25 
     26 #ifndef WebKitCSSKeyframesRule_h
     27 #define WebKitCSSKeyframesRule_h
     28 
     29 #include "CSSRule.h"
     30 #include <wtf/Forward.h>
     31 #include <wtf/RefPtr.h>
     32 #include <wtf/text/AtomicString.h>
     33 
     34 namespace WebCore {
     35 
     36 class CSSRuleList;
     37 class WebKitCSSKeyframeRule;
     38 
     39 typedef int ExceptionCode;
     40 
     41 class WebKitCSSKeyframesRule : public CSSRule {
     42 public:
     43     static PassRefPtr<WebKitCSSKeyframesRule> create()
     44     {
     45         return adoptRef(new WebKitCSSKeyframesRule(0));
     46     }
     47     static PassRefPtr<WebKitCSSKeyframesRule> create(CSSStyleSheet* parent)
     48     {
     49         return adoptRef(new WebKitCSSKeyframesRule(parent));
     50     }
     51 
     52     ~WebKitCSSKeyframesRule();
     53 
     54     virtual bool isKeyframesRule() { return true; }
     55 
     56     // Inherited from CSSRule
     57     virtual unsigned short type() const { return WEBKIT_KEYFRAMES_RULE; }
     58 
     59     String name() const;
     60     void setName(const String&);
     61 
     62     // This version of setName does not call styleSheetChanged to avoid
     63     // unnecessary work. It assumes callers will either make that call
     64     // themselves, or know that it will get called later.
     65     void setNameInternal(const String& name)
     66     {
     67         m_name = AtomicString(name);
     68     }
     69 
     70     CSSRuleList* cssRules() { return m_lstCSSRules.get(); }
     71 
     72     void insertRule(const String& rule);
     73     void deleteRule(const String& key);
     74     WebKitCSSKeyframeRule* findRule(const String& key);
     75 
     76     virtual String cssText() const;
     77 
     78     /* not part of the DOM */
     79     unsigned length() const;
     80     WebKitCSSKeyframeRule*        item(unsigned index);
     81     const WebKitCSSKeyframeRule*  item(unsigned index) const;
     82     void append(WebKitCSSKeyframeRule* rule);
     83 
     84 private:
     85     WebKitCSSKeyframesRule(CSSStyleSheet* parent);
     86 
     87     int findRuleIndex(const String& key) const;
     88 
     89     RefPtr<CSSRuleList> m_lstCSSRules;
     90     AtomicString m_name;
     91 };
     92 
     93 } // namespace WebCore
     94 
     95 #endif // WebKitCSSKeyframesRule_h
     96