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      1 /*
      2  * Copyright (C) 1999-2003 Lars Knoll (knoll (at) kde.org)
      3  *               1999 Waldo Bastian (bastian (at) kde.org)
      4  * Copyright (C) 2004, 2006, 2010 Apple Inc. All rights reserved.
      5  *
      6  * This library is free software; you can redistribute it and/or
      7  * modify it under the terms of the GNU Library General Public
      8  * License as published by the Free Software Foundation; either
      9  * version 2 of the License, or (at your option) any later version.
     10  *
     11  * This library is distributed in the hope that it will be useful,
     12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
     13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
     14  * Library General Public License for more details.
     15  *
     16  * You should have received a copy of the GNU Library General Public License
     17  * along with this library; see the file COPYING.LIB.  If not, write to
     18  * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
     19  * Boston, MA 02110-1301, USA.
     20  */
     21 
     22 #ifndef CSSNamespace_h
     23 #define CSSNamespace_h
     24 
     25 #include <wtf/text/AtomicString.h>
     26 
     27 namespace WebCore {
     28 
     29     struct CSSNamespace {
     30         WTF_MAKE_NONCOPYABLE(CSSNamespace); WTF_MAKE_FAST_ALLOCATED;
     31     public:
     32         AtomicString prefix;
     33         AtomicString uri;
     34         OwnPtr<CSSNamespace> parent;
     35 
     36         CSSNamespace(const AtomicString& prefix, const AtomicString& uri, PassOwnPtr<CSSNamespace> parent)
     37             : prefix(prefix)
     38             , uri(uri)
     39             , parent(parent)
     40         {
     41         }
     42 
     43         CSSNamespace* namespaceForPrefix(const AtomicString& prefix)
     44         {
     45             for (CSSNamespace* candidate = this; candidate; candidate = candidate->parent.get()) {
     46                 if (candidate->prefix == prefix)
     47                     return candidate;
     48             }
     49             return 0;
     50         }
     51     };
     52 
     53 } // namespace WebCore
     54 
     55 #endif // CSSNamespace_h
     56