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 "platform/heap/Handle.h" 26 #include "wtf/RefCounted.h" 27 28 namespace WebCore { 29 30 class MediaQueryList; 31 32 // See http://dev.w3.org/csswg/cssom-view/#the-mediaquerylist-interface 33 34 class MediaQueryListListener : public RefCountedWillBeGarbageCollectedFinalized<MediaQueryListListener> { 35 public: 36 static PassRefPtrWillBeRawPtr<MediaQueryListListener> create(ScriptState* scriptState, const ScriptValue& value) 37 { 38 if (!value.isFunction()) 39 return nullptr; 40 return adoptRefWillBeNoop(new MediaQueryListListener(scriptState, value)); 41 } 42 void queryChanged(MediaQueryList*); 43 44 bool operator==(const MediaQueryListListener& other) const { return m_function == other.m_function; } 45 46 void trace(Visitor*) { } 47 48 private: 49 MediaQueryListListener(ScriptState*, const ScriptValue&); 50 51 RefPtr<ScriptState> m_scriptState; 52 ScriptValue m_function; 53 }; 54 55 } 56 57 #endif // MediaQueryListListener_h 58
