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| 1 /* | 1 /* |
| 2 * Copyright (C) 2010 Apple Inc. All rights reserved. | 2 * Copyright (C) 2010 Apple Inc. All rights reserved. |
| 3 * | 3 * |
| 4 * Redistribution and use in source and binary forms, with or without | 4 * Redistribution and use in source and binary forms, with or without |
| 5 * modification, are permitted provided that the following conditions | 5 * modification, are permitted provided that the following conditions |
| 6 * are met: | 6 * are met: |
| 7 * 1. Redistributions of source code must retain the above copyright | 7 * 1. Redistributions of source code must retain the above copyright |
| 8 * notice, this list of conditions and the following disclaimer. | 8 * notice, this list of conditions and the following disclaimer. |
| 9 * 2. Redistributions in binary form must reproduce the above copyright | 9 * 2. Redistributions in binary form must reproduce the above copyright |
| 10 * notice, this list of conditions and the following disclaimer in the | 10 * notice, this list of conditions and the following disclaimer in the |
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| 73 WTF_MAKE_NONCOPYABLE(UserGestureIndicator); | 73 WTF_MAKE_NONCOPYABLE(UserGestureIndicator); |
| 74 | 74 |
| 75 public: | 75 public: |
| 76 // Returns whether a user gesture is currently in progress. | 76 // Returns whether a user gesture is currently in progress. |
| 77 // Does not invoke the UserGestureUtilizedCallback. Consider calling | 77 // Does not invoke the UserGestureUtilizedCallback. Consider calling |
| 78 // utilizeUserGesture instead if you know for sure that the return value | 78 // utilizeUserGesture instead if you know for sure that the return value |
| 79 // will have an effect. | 79 // will have an effect. |
| 80 static bool processingUserGesture(); | 80 static bool processingUserGesture(); |
| 81 | 81 |
| 82 // Indicates that a user gesture (if any) is being used, without preventing it | 82 // Indicates that a user gesture (if any) is being used, without preventing it |
| 83 // from being used again. Returns whether a user gesture is currently in prog
ress. | 83 // from being used again. Returns whether a user gesture is currently in |
| 84 // If true, invokes (and then clears) any UserGestureUtilizedCallback. | 84 // progress. If true, invokes (and then clears) any |
| 85 // UserGestureUtilizedCallback. |
| 85 static bool utilizeUserGesture(); | 86 static bool utilizeUserGesture(); |
| 86 | 87 |
| 87 // Mark the current user gesture (if any) as having been used, such that | 88 // Mark the current user gesture (if any) as having been used, such that |
| 88 // it cannot be used again. This is done only for very security-sensitive | 89 // it cannot be used again. This is done only for very security-sensitive |
| 89 // operations like creating a new process. | 90 // operations like creating a new process. |
| 90 // Like utilizeUserGesture, may invoke/clear any UserGestureUtilizedCallback. | 91 // Like utilizeUserGesture, may invoke/clear any UserGestureUtilizedCallback. |
| 91 static bool consumeUserGesture(); | 92 static bool consumeUserGesture(); |
| 92 | 93 |
| 93 static UserGestureToken* currentToken(); | 94 static UserGestureToken* currentToken(); |
| 94 | 95 |
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| 109 static UserGestureIndicator* s_topmostIndicator; | 110 static UserGestureIndicator* s_topmostIndicator; |
| 110 static bool s_processedUserGestureSinceLoad; | 111 static bool s_processedUserGestureSinceLoad; |
| 111 ProcessingUserGestureState m_previousState; | 112 ProcessingUserGestureState m_previousState; |
| 112 RefPtr<UserGestureToken> m_token; | 113 RefPtr<UserGestureToken> m_token; |
| 113 UserGestureUtilizedCallback* m_usageCallback; | 114 UserGestureUtilizedCallback* m_usageCallback; |
| 114 }; | 115 }; |
| 115 | 116 |
| 116 } // namespace blink | 117 } // namespace blink |
| 117 | 118 |
| 118 #endif | 119 #endif |
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