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      1 /*
      2  * Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies)
      3  *
      4  *  This library is free software; you can redistribute it and/or
      5  *  modify it under the terms of the GNU Library General Public
      6  *  License as published by the Free Software Foundation; either
      7  *  version 2 of the License, or (at your option) any later version.
      8  *
      9  *  This library is distributed in the hope that it will be useful,
     10  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
     11  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
     12  *  Library General Public License for more details.
     13  *
     14  *  You should have received a copy of the GNU Library General Public License
     15  *  along with this library; see the file COPYING.LIB.  If not, write to
     16  *  the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
     17  *  Boston, MA 02110-1301, USA.
     18  */
     19 
     20 #ifndef MediaQueryListListener_h
     21 #define MediaQueryListListener_h
     22 
     23 #include "bindings/v8/ScriptState.h"
     24 #include "bindings/v8/ScriptValue.h"
     25 #include "wtf/RefCounted.h"
     26 
     27 namespace WebCore {
     28 
     29 class MediaQueryList;
     30 
     31 // See http://dev.w3.org/csswg/cssom-view/#the-mediaquerylist-interface
     32 
     33 class MediaQueryListListener : public RefCounted<MediaQueryListListener> {
     34 public:
     35     static PassRefPtr<MediaQueryListListener> create(const ScriptValue& value)
     36     {
     37         if (!value.isFunction())
     38             return 0;
     39         return adoptRef(new MediaQueryListListener(value));
     40     }
     41     void queryChanged(ScriptState*, MediaQueryList*);
     42 
     43     bool operator==(const MediaQueryListListener& other) const { return m_value == other.m_value; }
     44 
     45 private:
     46     MediaQueryListListener(const ScriptValue& value) : m_value(value) { }
     47 
     48     ScriptValue m_value;
     49 };
     50 
     51 }
     52 
     53 #endif // MediaQueryListListener_h
     54