1/* 2 * Copyright (C) 2011 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. AND ITS CONTRIBUTORS ``AS IS'' 14 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, 15 * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 16 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS 17 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 18 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 19 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 20 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 21 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 22 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF 23 * THE POSSIBILITY OF SUCH DAMAGE. 24 */ 25 26#include "config.h" 27#include "DisplaySleepDisabler.h" 28 29#include <IOKit/pwr_mgt/IOPMLib.h> 30#include <wtf/RetainPtr.h> 31 32namespace WebCore { 33 34static const double systemActivityInterval = 1; 35 36DisplaySleepDisabler::DisplaySleepDisabler(const char* reason) 37 : m_disableDisplaySleepAssertion(0) 38{ 39#if !PLATFORM(IOS) 40 RetainPtr<CFStringRef> reasonCF = adoptCF(CFStringCreateWithCString(kCFAllocatorDefault, reason, kCFStringEncodingUTF8)); 41 IOPMAssertionCreateWithName(kIOPMAssertionTypeNoDisplaySleep, kIOPMAssertionLevelOn, reasonCF.get(), &m_disableDisplaySleepAssertion); 42#else 43 UNUSED_PARAM(reason); 44 IOPMAssertionCreate(kIOPMAssertionTypeNoDisplaySleep, kIOPMAssertionLevelOn, &m_disableDisplaySleepAssertion); 45 m_systemActivityTimer.startRepeating(systemActivityInterval); 46#endif 47} 48 49DisplaySleepDisabler::~DisplaySleepDisabler() 50{ 51 IOPMAssertionRelease(m_disableDisplaySleepAssertion); 52} 53 54} 55