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1 /* | |
2 * Copyright (C) 2013 Google Inc. All rights reserved. | |
3 * | |
4 * Redistribution and use in source and binary forms, with or without | |
5 * modification, are permitted provided that the following conditions are | |
6 * met: | |
7 * | |
8 * * Redistributions of source code must retain the above copyright | |
9 * notice, this list of conditions and the following disclaimer. | |
10 * * Redistributions in binary form must reproduce the above | |
11 * copyright notice, this list of conditions and the following disclaimer | |
12 * in the documentation and/or other materials provided with the | |
13 * distribution. | |
14 * * Neither the name of Google Inc. nor the names of its | |
15 * contributors may be used to endorse or promote products derived from | |
16 * this software without specific prior written permission. | |
17 * | |
18 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS | |
19 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT | |
20 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR | |
21 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT | |
22 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, | |
23 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT | |
24 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, | |
25 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY | |
26 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT | |
27 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE | |
28 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | |
29 */ | |
30 | |
31 #ifndef WebUserGestureToken_h | |
32 #define WebUserGestureToken_h | |
33 | |
34 #include "../platform/WebPrivatePtr.h" | |
35 | |
36 namespace WebCore { | |
37 class UserGestureToken; | |
38 } | |
39 | |
40 namespace WebKit { | |
41 | |
42 // A WebUserGestureToken allows for storing the user gesture state of the | |
43 // currently active context and reinstantiating it later on to continue | |
44 // processing the user gesture in case it was not consumed meanwhile. | |
45 class WebUserGestureToken { | |
46 public: | |
47 WebUserGestureToken() { } | |
48 WebUserGestureToken(const WebUserGestureToken& other) { assign(other); } | |
49 WebUserGestureToken& operator=(const WebUserGestureToken& other) | |
50 { | |
51 assign(other); | |
52 return *this; | |
53 } | |
54 ~WebUserGestureToken() { reset(); } | |
55 | |
56 WEBKIT_EXPORT bool hasGestures() const; | |
57 bool isNull() const { return m_token.isNull(); } | |
58 | |
59 #if WEBKIT_IMPLEMENTATION | |
60 explicit WebUserGestureToken(PassRefPtr<WebCore::UserGestureToken>); | |
61 operator PassRefPtr<WebCore::UserGestureToken>() const; | |
62 #endif | |
63 | |
64 private: | |
65 WEBKIT_EXPORT void assign(const WebUserGestureToken&); | |
66 WEBKIT_EXPORT void reset(); | |
67 | |
68 WebPrivatePtr<WebCore::UserGestureToken> m_token; | |
69 }; | |
70 | |
71 } // namespace WebKit | |
72 | |
73 #endif // WebUserGestureToken_h | |
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