linphone-desktop/Linphone/tool/native/screen-saver/ScreenSaverMacOs.m
2024-05-30 17:31:26 +02:00

49 lines
1.5 KiB
Objective-C

/*
* ScreenSaverMacOS.m
* Copyright (C) 2017-2018 Belledonne Communications, Grenoble, France
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*
* Created on: August 3, 2018
* Author: Ronan Abhamon
*/
#import <IOKit/pwr_mgt/IOPMLib.h>
// =============================================================================
static bool ScreenSaverEnabled = true;
static IOPMAssertionID AssertionID;
bool enableScreenSaverMacOs () {
if (ScreenSaverEnabled)
return true;
ScreenSaverEnabled = IOPMAssertionRelease(AssertionID) == kIOReturnSuccess;
return ScreenSaverEnabled;
}
bool disableScreenSaverMacOs () {
if (!ScreenSaverEnabled)
return true;
ScreenSaverEnabled = IOPMAssertionCreateWithName(
kIOPMAssertionTypeNoDisplaySleep,
kIOPMAssertionLevelOn,
CFSTR("Inhibit asked for video stream"),
&AssertionID
) != kIOReturnSuccess;
return !ScreenSaverEnabled;
}