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1/*
2 * Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009, 2010 Apple Inc. All rights reserved.
3 * Copyright (C) 2006 James G. Speth (speth@end.com)
4 * Copyright (C) 2006 Samuel Weinig (sam.weinig@gmail.com)
5 *
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions
8 * are met:
9 * 1. Redistributions of source code must retain the above copyright
10 *    notice, this list of conditions and the following disclaimer.
11 * 2. Redistributions in binary form must reproduce the above copyright
12 *    notice, this list of conditions and the following disclaimer in the
13 *    documentation and/or other materials provided with the distribution.
14 *
15 * THIS SOFTWARE IS PROVIDED BY APPLE COMPUTER, INC. ``AS IS'' AND ANY
16 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
17 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
18 * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL APPLE COMPUTER, INC. OR
19 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
20 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
21 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
22 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
23 * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
24 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
25 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
26 */
27
28#import "config.h"
29#import "ObjCEventListener.h"
30
31#import "DOMEventInternal.h"
32#import "DOMEventListener.h"
33#import "Event.h"
34#import "EventListener.h"
35#import "JSMainThreadExecState.h"
36#import <wtf/HashMap.h>
37
38namespace WebCore {
39
40typedef HashMap<id, ObjCEventListener*> ListenerMap;
41static ListenerMap* listenerMap;
42
43ObjCEventListener* ObjCEventListener::find(ObjCListener listener)
44{
45    ListenerMap* map = listenerMap;
46    if (!map)
47        return 0;
48    return map->get(listener);
49}
50
51PassRefPtr<ObjCEventListener> ObjCEventListener::wrap(ObjCListener listener)
52{
53    RefPtr<ObjCEventListener> wrapper = find(listener);
54    if (wrapper)
55        return wrapper;
56    return adoptRef(new ObjCEventListener(listener));
57}
58
59ObjCEventListener::ObjCEventListener(ObjCListener listener)
60    : EventListener(ObjCEventListenerType)
61    , m_listener(listener)
62{
63    ListenerMap* map = listenerMap;
64    if (!map) {
65        map = new ListenerMap;
66        listenerMap = map;
67    }
68    map->set(listener, this);
69}
70
71ObjCEventListener::~ObjCEventListener()
72{
73    listenerMap->remove(m_listener.get());
74}
75
76void ObjCEventListener::handleEvent(ScriptExecutionContext*, Event* event)
77{
78    ObjCListener listener = m_listener.get();
79    [listener handleEvent:kit(event)];
80}
81
82bool ObjCEventListener::operator==(const EventListener& listener)
83{
84    if (const ObjCEventListener* objCEventListener = ObjCEventListener::cast(&listener))
85        return m_listener == objCEventListener->m_listener;
86    return false;
87}
88
89} // namespace WebCore
90