| /* |
| * Copyright (C) 2010 Apple Inc. All rights reserved. |
| * |
| * Redistribution and use in source and binary forms, with or without |
| * modification, are permitted provided that the following conditions |
| * are met: |
| * 1. Redistributions of source code must retain the above copyright |
| * notice, this list of conditions and the following disclaimer. |
| * 2. Redistributions in binary form must reproduce the above copyright |
| * notice, this list of conditions and the following disclaimer in the |
| * documentation and/or other materials provided with the distribution. |
| * |
| * THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS'' |
| * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, |
| * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR |
| * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS |
| * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR |
| * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF |
| * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS |
| * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN |
| * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) |
| * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF |
| * THE POSSIBILITY OF SUCH DAMAGE. |
| */ |
| |
| #ifndef UserGestureIndicator_h |
| #define UserGestureIndicator_h |
| |
| #include "platform/PlatformExport.h" |
| #include "wtf/Noncopyable.h" |
| #include "wtf/RefCounted.h" |
| #include "wtf/RefPtr.h" |
| |
| namespace blink { |
| |
| class UserGestureIndicator; |
| |
| enum ProcessingUserGestureState { |
| DefinitelyProcessingNewUserGesture, |
| DefinitelyProcessingUserGesture, |
| PossiblyProcessingUserGesture, |
| DefinitelyNotProcessingUserGesture |
| }; |
| |
| class PLATFORM_EXPORT UserGestureToken : public RefCounted<UserGestureToken> { |
| WTF_MAKE_NONCOPYABLE(UserGestureToken); |
| public: |
| UserGestureToken() { } |
| virtual ~UserGestureToken() { } |
| virtual bool hasGestures() const = 0; |
| virtual void setOutOfProcess() = 0; |
| virtual void setJavascriptPrompt() = 0; |
| virtual void setPauseInDebugger() = 0; |
| }; |
| |
| class PLATFORM_EXPORT UserGestureIndicator final { |
| USING_FAST_MALLOC(UserGestureIndicator); |
| WTF_MAKE_NONCOPYABLE(UserGestureIndicator); |
| public: |
| static bool processingUserGesture(); |
| static bool consumeUserGesture(); |
| static UserGestureToken* currentToken(); |
| static void clearProcessedUserGestureSinceLoad(); |
| static bool processedUserGestureSinceLoad(); |
| |
| explicit UserGestureIndicator(ProcessingUserGestureState); |
| explicit UserGestureIndicator(PassRefPtr<UserGestureToken>); |
| ~UserGestureIndicator(); |
| |
| private: |
| static ProcessingUserGestureState s_state; |
| static UserGestureIndicator* s_topmostIndicator; |
| static bool s_processedUserGestureSinceLoad; |
| ProcessingUserGestureState m_previousState; |
| RefPtr<UserGestureToken> m_token; |
| }; |
| |
| } // namespace blink |
| |
| #endif |