1 /*
2     Copyright © 2019 by The qTox Project Contributors
3 
4     This file is part of qTox, a Qt-based graphical interface for Tox.
5 
6     qTox is libre software: you can redistribute it and/or modify
7     it under the terms of the GNU General Public License as published by
8     the Free Software Foundation, either version 3 of the License, or
9     (at your option) any later version.
10 
11     qTox is distributed in the hope that it will be useful,
12     but WITHOUT ANY WARRANTY; without even the implied warranty of
13     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
14     GNU General Public License for more details.
15 
16     You should have received a copy of the GNU General Public License
17     along with qTox.  If not, see <http://www.gnu.org/licenses/>.
18 */
19 
20 #include <QtCore/qsystemdetection.h>
21 #include "src/platform/timer.h"
22 #include "src/platform/x11_display.h"
23 #include <QDebug>
24 #include <X11/extensions/scrnsaver.h>
25 
getIdleTime()26 uint32_t Platform::getIdleTime()
27 {
28     uint32_t idleTime = 0;
29 
30     Display* display = X11Display::lock();
31     if (!display) {
32         qDebug() << "XOpenDisplay failed";
33         X11Display::unlock();
34         return 0;
35     }
36 
37     int32_t x11event = 0, x11error = 0;
38     static int32_t hasExtension = XScreenSaverQueryExtension(display, &x11event, &x11error);
39     if (hasExtension) {
40         XScreenSaverInfo* info = XScreenSaverAllocInfo();
41         if (info) {
42             XScreenSaverQueryInfo(display, DefaultRootWindow(display), info);
43             idleTime = info->idle;
44             XFree(info);
45         } else
46             qDebug() << "XScreenSaverAllocInfo() failed";
47     }
48     X11Display::unlock();
49     return idleTime;
50 }
51