1/* 2 * Copyright (C) 2010, 2014 Apple 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 6 * are met: 7 * 1. Redistributions of source code must retain the above copyright 8 * notice, this list of conditions and the following disclaimer. 9 * 2. Redistributions in binary form must reproduce the above copyright 10 * notice, this list of conditions and the following disclaimer in the 11 * documentation and/or other materials provided with the distribution. 12 * 13 * THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY 14 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 15 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 16 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR 17 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, 18 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, 19 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR 20 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY 21 * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 22 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 23 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 24 */ 25 26#ifndef DisplayRefreshMonitorClient_h 27#define DisplayRefreshMonitorClient_h 28 29#if USE(REQUEST_ANIMATION_FRAME_DISPLAY_MONITOR) 30 31#include "PlatformScreen.h" 32 33namespace WebCore { 34 35class DisplayRefreshMonitor; 36class DisplayRefreshMonitorManager; 37 38class DisplayRefreshMonitorClient { 39public: 40 DisplayRefreshMonitorClient(); 41 virtual ~DisplayRefreshMonitorClient(); 42 43 // Always called on the main thread. 44 virtual void displayRefreshFired(double timestamp) = 0; 45 46 virtual PassRefPtr<DisplayRefreshMonitor> createDisplayRefreshMonitor(PlatformDisplayID) const = 0; 47 48 PlatformDisplayID displayID() const { return m_displayID; } 49 bool hasDisplayID() const { return m_displayIDIsSet; } 50 void setDisplayID(PlatformDisplayID displayID) 51 { 52 m_displayID = displayID; 53 m_displayIDIsSet = true; 54 } 55 56 void setIsScheduled(bool isScheduled) { m_scheduled = isScheduled; } 57 bool isScheduled() const { return m_scheduled; } 58 59 void fireDisplayRefreshIfNeeded(double timestamp); 60 61private: 62 bool m_scheduled; 63 bool m_displayIDIsSet; 64 PlatformDisplayID m_displayID; 65}; 66 67} 68 69#endif // USE(REQUEST_ANIMATION_FRAME_DISPLAY_MONITOR) 70 71#endif 72