1 /* 2 * Copyright (C) 2006, 2008, 2009 Apple Inc. All rights reserved. 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 21 #ifndef EventListener_h 22 #define EventListener_h 23 24 #include "wtf/RefCounted.h" 25 26 namespace WebCore { 27 28 class DOMWrapperWorld; 29 class Event; 30 class ScriptExecutionContext; 31 32 class EventListener : public RefCounted<EventListener> { 33 public: 34 enum Type { 35 JSEventListenerType, 36 ImageEventListenerType, 37 ObjCEventListenerType, 38 CPPEventListenerType, 39 ConditionEventListenerType, 40 GObjectEventListenerType, 41 NativeEventListenerType, 42 SVGTRefTargetEventListenerType 43 }; 44 45 virtual ~EventListener() { } 46 virtual bool operator==(const EventListener&) = 0; 47 virtual void handleEvent(ScriptExecutionContext*, Event*) = 0; 48 virtual bool wasCreatedFromMarkup() const { return false; } 49 virtual DOMWrapperWorld* world() const { return 0; } 50 51 bool isAttribute() const { return virtualisAttribute(); } 52 Type type() const { return m_type; } 53 54 protected: 55 explicit EventListener(Type type) 56 : m_type(type) 57 { 58 } 59 60 private: 61 virtual bool virtualisAttribute() const { return false; } 62 63 Type m_type; 64 }; 65 66 } 67 68 #endif 69
