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      1 /*
      2  * Copyright (C) 2010 Google, 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 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 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 ParserContentPolicy_h
     27 #define ParserContentPolicy_h
     28 
     29 namespace WebCore {
     30 
     31 enum ParserContentPolicy {
     32     DisallowScriptingAndPluginContent,
     33     DisallowScriptingContent,
     34     AllowScriptingContent,
     35     AllowScriptingContentAndDoNotMarkAlreadyStarted,
     36 };
     37 
     38 static inline bool scriptingContentIsAllowed(ParserContentPolicy parserContentPolicy)
     39 {
     40     return parserContentPolicy == AllowScriptingContent || parserContentPolicy == AllowScriptingContentAndDoNotMarkAlreadyStarted;
     41 }
     42 
     43 static inline ParserContentPolicy disallowScriptingContent(ParserContentPolicy parserContentPolicy)
     44 {
     45     if (!scriptingContentIsAllowed(parserContentPolicy))
     46         return parserContentPolicy;
     47     return DisallowScriptingContent;
     48 }
     49 
     50 static inline bool pluginContentIsAllowed(ParserContentPolicy parserContentPolicy)
     51 {
     52     return parserContentPolicy != DisallowScriptingAndPluginContent;
     53 }
     54 
     55 static inline ParserContentPolicy allowPluginContent(ParserContentPolicy parserContentPolicy)
     56 {
     57     if (pluginContentIsAllowed(parserContentPolicy))
     58         return parserContentPolicy;
     59     return DisallowScriptingContent;
     60 }
     61 
     62 } // namespace WebCore
     63 
     64 #endif // ParserContentPolicy_h
     65