1 /*
2 * This file is part of the DOM implementation for KDE.
3 *
4 * Copyright (C) 1999 Lars Knoll (knoll@kde.org)
5 * (C) 1999 Antti Koivisto (koivisto@kde.org)
6 * (C) 2001 Dirk Mueller (mueller@kde.org)
7 * Copyright (C) 2004, 2005, 2006, 2007 Apple Inc. All rights reserved.
8 * Copyright (C) 2006 Alexey Proskuryakov (ap@webkit.org)
9 * (C) 2007, 2008 Nikolas Zimmermann <zimmermann@kde.org>
10 *
11 * Redistribution and use in source and binary forms, with or without
12 * modification, are permitted provided that the following conditions
13 * are met:
14 * 1. Redistributions of source code must retain the above copyright
15 * notice, this list of conditions and the following disclaimer.
16 * 2. Redistributions in binary form must reproduce the above copyright
17 * notice, this list of conditions and the following disclaimer in the
18 * documentation and/or other materials provided with the distribution.
19 *
20 * THIS SOFTWARE IS PROVIDED BY APPLE COMPUTER, INC. ``AS IS'' AND ANY
21 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
22 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
23 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE COMPUTER, INC. OR
24 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
25 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
26 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
27 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
28 * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
29 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
30 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
31 *
32 */
33
34 #include "config.h"
35 #include "EventTarget.h"
36
37 namespace WebCore {
38
39 #ifndef NDEBUG
40 static int gEventDispatchForbidden = 0;
41 #endif
42
~EventTarget()43 EventTarget::~EventTarget()
44 {
45 }
46
toNode()47 EventTargetNode* EventTarget::toNode()
48 {
49 return 0;
50 }
51
toXMLHttpRequest()52 XMLHttpRequest* EventTarget::toXMLHttpRequest()
53 {
54 return 0;
55 }
56
toXMLHttpRequestUpload()57 XMLHttpRequestUpload* EventTarget::toXMLHttpRequestUpload()
58 {
59 return 0;
60 }
61
62 #if ENABLE(OFFLINE_WEB_APPLICATIONS)
toDOMApplicationCache()63 DOMApplicationCache* EventTarget::toDOMApplicationCache()
64 {
65 return 0;
66 }
67 #endif
68
69 #if ENABLE(SVG)
toSVGElementInstance()70 SVGElementInstance* EventTarget::toSVGElementInstance()
71 {
72 return 0;
73 }
74 #endif
75
toMessagePort()76 MessagePort* EventTarget::toMessagePort()
77 {
78 return 0;
79 }
80
81 #if ENABLE(WORKERS)
toWorker()82 Worker* EventTarget::toWorker()
83 {
84 return 0;
85 }
86
toWorkerContext()87 WorkerContext* EventTarget::toWorkerContext()
88 {
89 return 0;
90 }
91 #endif
92
93 #ifndef NDEBUG
forbidEventDispatch()94 void forbidEventDispatch()
95 {
96 ++gEventDispatchForbidden;
97 }
98
allowEventDispatch()99 void allowEventDispatch()
100 {
101 if (gEventDispatchForbidden > 0)
102 --gEventDispatchForbidden;
103 }
104
eventDispatchForbidden()105 bool eventDispatchForbidden()
106 {
107 return gEventDispatchForbidden > 0;
108 }
109 #endif // NDEBUG
110
111 } // end namespace
112