summaryrefslogtreecommitdiffstats
path: root/src/modules/my/idle_x11.cpp
blob: fa2f1f154b855add76a1b84d13bd60cc8e4fefbe (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
/*
 * idle_x11.cpp - detect desktop idle time
 * Copyright (C) 2003  Justin Karneges
 *
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 2.1 of the License, or (at your option) any later version.
 *
 * This library 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
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with this library; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
 *
 */
#ifndef Q_OS_MACX
#ifndef COMPILE_ON_WINDOWS

#include"idle.h"

#ifndef COMPILE_XSS_SUPPORT

IdlePlatform::IdlePlatform() {}
IdlePlatform::~IdlePlatform() {}
bool IdlePlatform::init() { return false; }
int IdlePlatform::secondsIdle() { return 0; }

#else

#include<qapplication.h>

#include<X11/Xlib.h>
#include<X11/Xutil.h>
#include<X11/extensions/scrnsaver.h>

#ifdef COMPILE_USE_QT4
	#include <qdesktopwidget.h>
#endif

static XErrorHandler old_handler = 0;
extern "C" int xerrhandler(Display* dpy, XErrorEvent* err)
{
	if(err->error_code == BadDrawable)
		return 0;

	return (*old_handler)(dpy, err);
}

class IdlePlatform::Private
{
public:
	Private() {}

	XScreenSaverInfo *ss_info;
};

IdlePlatform::IdlePlatform()
{
	d = new Private;
	d->ss_info = 0;
}

IdlePlatform::~IdlePlatform()
{
	if(d->ss_info)
		XFree(d->ss_info);
	if(old_handler) {
		XSetErrorHandler(old_handler);
		old_handler = 0;
	}
	delete d;
}

bool IdlePlatform::init()
{
	if(d->ss_info)
		return true;

	old_handler = XSetErrorHandler(xerrhandler);

	int event_base, error_base;
	if(XScreenSaverQueryExtension(QApplication::desktop()->screen()->x11Display(), &event_base, &error_base)) {
		d->ss_info = XScreenSaverAllocInfo();
		return true;
	}
	return false;
}

#ifdef COMPILE_USE_QT4
	#include <qx11info_x11.h>
#endif

int IdlePlatform::secondsIdle()
{
	if(!d->ss_info)
		return 0;
#ifdef COMPILE_USE_QT4
	if(!XScreenSaverQueryInfo(QApplication::desktop()->screen()->x11Display(), QX11Info::appRootWindow(), d->ss_info))
#else
	if(!XScreenSaverQueryInfo(QApplication::desktop()->screen()->x11Display(), qt_xrootwin(), d->ss_info))
#endif
		return 0;
	return d->ss_info->idle / 1000;
}

#endif

#endif
#endif