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, 2013 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 "EventContext.h"
30#include "SimulatedClickOptions.h"
31#include <wtf/Forward.h>
32#include <wtf/HashMap.h>
33#include <wtf/PassRefPtr.h>
34#include <wtf/Vector.h>
35
36namespace WebCore {
37
38class Event;
39class EventDispatchMediator;
40class EventTarget;
41class FrameView;
42class Node;
43class PlatformKeyboardEvent;
44class PlatformMouseEvent;
45class ShadowRoot;
46class TreeScope;
47class WindowEventContext;
48
49enum EventDispatchContinuation {
50    ContinueDispatching,
51    DoneDispatching
52};
53
54class EventDispatcher {
55public:
56    static bool dispatchEvent(Node*, PassRefPtr<EventDispatchMediator>);
57    static void dispatchScopedEvent(Node*, PassRefPtr<EventDispatchMediator>);
58
59    static void dispatchSimulatedClick(Element*, Event* underlyingEvent, SimulatedClickMouseEventOptions, SimulatedClickVisualOptions);
60
61    bool dispatch();
62    Node* node() const { return m_node.get(); }
63    Event* event() const { return m_event.get(); }
64    EventPath& eventPath() { return m_eventPath; }
65
66private:
67    EventDispatcher(Node*, PassRefPtr<Event>);
68    const EventContext* topEventContext();
69
70    EventDispatchContinuation dispatchEventPreProcess(void*& preDispatchEventHandlerResult);
71    EventDispatchContinuation dispatchEventAtCapturing(WindowEventContext&);
72    EventDispatchContinuation dispatchEventAtTarget();
73    void dispatchEventAtBubbling(WindowEventContext&);
74    void dispatchEventPostProcess(void* preDispatchEventHandlerResult);
75
76    EventPath m_eventPath;
77    RefPtr<Node> m_node;
78    RefPtr<Event> m_event;
79    RefPtr<FrameView> m_view;
80#ifndef NDEBUG
81    bool m_eventDispatched;
82#endif
83};
84
85}
86
87#endif
88