1 /*
2 * Copyright (C) 1999 Lars Knoll (knoll@kde.org)
3 * (C) 1999 Antti Koivisto (koivisto@kde.org)
4 * (C) 2001 Dirk Mueller (mueller@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 <wtf/Forward.h>
30 #include <wtf/Vector.h>
31
32 namespace WebCore {
33
34 class Event;
35 class EventContext;
36 class EventDispatchMediator;
37 class EventTarget;
38 class FrameView;
39 class Node;
40 class PlatformKeyboardEvent;
41 class PlatformMouseEvent;
42 class PlatformWheelEvent;
43
44 enum EventDispatchBehavior {
45 RetargetEvent,
46 StayInsideShadowDOM
47 };
48
49 class EventDispatcher {
50 public:
51 static bool dispatchEvent(Node*, const EventDispatchMediator&);
52 static void dispatchScopedEvent(Node*, PassRefPtr<Event>);
53
54 static void dispatchSimulatedClick(Node*, PassRefPtr<Event> underlyingEvent, bool sendMouseEvents, bool showPressedLook);
55
56 bool dispatchEvent(PassRefPtr<Event>);
57 PassRefPtr<EventTarget> adjustRelatedTarget(Event*, PassRefPtr<EventTarget>);
58 Node* node() const;
59
60 private:
61 EventDispatcher(Node*);
62
63 PassRefPtr<EventTarget> adjustToShadowBoundaries(PassRefPtr<Node> relatedTarget, const Vector<Node*> relatedTargetAncestors);
64 EventDispatchBehavior determineDispatchBehavior(Event*);
65 void ensureEventAncestors(Event*);
66 const EventContext* topEventContext();
67
68 Vector<EventContext> m_ancestors;
69 RefPtr<Node> m_node;
70 RefPtr<EventTarget> m_originalTarget;
71 RefPtr<FrameView> m_view;
72 bool m_ancestorsInitialized;
73 };
74
node()75 inline Node* EventDispatcher::node() const
76 {
77 return m_node.get();
78 }
79
80 }
81
82 #endif
83