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 JSC { 27 class JSObject; 28 class MarkStack; 29 } 30 31 namespace WebCore { 32 33 class ScriptExecutionContext; 34 class Event; 35 36 class EventListener : public RefCounted<EventListener> { 37 public: 38 enum Type { 39 JSEventListenerType, 40 ImageEventListenerType, 41 InspectorDOMAgentType, 42 InspectorDOMStorageResourceType, 43 ObjCEventListenerType, 44 CPPEventListenerType, 45 ConditionEventListenerType, 46 GObjectEventListenerType, 47 NativeEventListenerType 48 }; 49 ~EventListener()50 virtual ~EventListener() { } 51 virtual bool operator==(const EventListener&) = 0; 52 virtual void handleEvent(ScriptExecutionContext*, Event*) = 0; wasCreatedFromMarkup()53 virtual bool wasCreatedFromMarkup() const { return false; } 54 55 #if USE(JSC) markJSFunction(JSC::MarkStack &)56 virtual void markJSFunction(JSC::MarkStack&) { } 57 #endif 58 isAttribute()59 bool isAttribute() const { return virtualisAttribute(); } type()60 Type type() const { return m_type; } 61 62 protected: EventListener(Type type)63 EventListener(Type type) 64 : m_type(type) 65 { 66 } 67 68 private: virtualisAttribute()69 virtual bool virtualisAttribute() const { return false; } 70 71 Type m_type; 72 }; 73 74 } 75 76 #endif 77