1 /* 2 * Copyright (C) 1999 Lars Knoll (knoll (at) kde.org) 3 * (C) 1999 Antti Koivisto (koivisto (at) kde.org) 4 * (C) 2001 Dirk Mueller (mueller (at) kde.org) 5 * Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009, 2010 Apple Inc. All rights reserved. 6 * Copyright (C) 2008 Nokia Corporation and/or its subsidiary(-ies) 7 * Copyright (C) 2009 Torch Mobile Inc. All rights reserved. (http://www.torchmobile.com/) 8 * Copyright (C) 2011 Google Inc. All rights reserved. 9 * 10 * This library is free software; you can redistribute it and/or 11 * modify it under the terms of the GNU Library General Public 12 * License as published by the Free Software Foundation; either 13 * version 2 of the License, or (at your option) any later version. 14 * 15 * This library is distributed in the hope that it will be useful, 16 * but WITHOUT ANY WARRANTY; without even the implied warranty of 17 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 18 * Library General Public License for more details. 19 * 20 * You should have received a copy of the GNU Library General Public License 21 * along with this library; see the file COPYING.LIB. If not, write to 22 * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, 23 * Boston, MA 02110-1301, USA. 24 */ 25 26 #ifndef EventDispatcher_h 27 #define EventDispatcher_h 28 29 #include "core/dom/SimulatedClickOptions.h" 30 #include "platform/heap/Handle.h" 31 #include "wtf/PassRefPtr.h" 32 #include "wtf/RefPtr.h" 33 34 namespace blink { 35 36 class Event; 37 class EventDispatchMediator; 38 class FrameView; 39 class Node; 40 class NodeEventContext; 41 class WindowEventContext; 42 43 enum EventDispatchContinuation { 44 ContinueDispatching, 45 DoneDispatching 46 }; 47 48 class EventDispatcher { 49 STACK_ALLOCATED(); 50 public: 51 static bool dispatchEvent(Node*, PassRefPtrWillBeRawPtr<EventDispatchMediator>); 52 static void dispatchScopedEvent(Node*, PassRefPtrWillBeRawPtr<EventDispatchMediator>); 53 54 static void dispatchSimulatedClick(Node*, Event* underlyingEvent, SimulatedClickMouseEventOptions); 55 56 bool dispatch(); 57 Node* node() const { return m_node.get(); } 58 Event* event() const { return m_event.get(); } 59 60 private: 61 EventDispatcher(Node*, PassRefPtrWillBeRawPtr<Event>); 62 const NodeEventContext* topNodeEventContext(); 63 64 EventDispatchContinuation dispatchEventPreProcess(void*& preDispatchEventHandlerResult); 65 EventDispatchContinuation dispatchEventAtCapturing(WindowEventContext&); 66 EventDispatchContinuation dispatchEventAtTarget(); 67 void dispatchEventAtBubbling(WindowEventContext&); 68 void dispatchEventPostProcess(void* preDispatchEventHandlerResult); 69 70 RefPtrWillBeMember<Node> m_node; 71 RefPtrWillBeMember<Event> m_event; 72 RefPtr<FrameView> m_view; 73 #if ENABLE(ASSERT) 74 bool m_eventDispatched; 75 #endif 76 }; 77 78 } 79 80 #endif 81