1 /*
2 * pidgin
3 *
4 * Pidgin is the legal property of its developers, whose names are too numerous
5 * to list here. Please refer to the COPYRIGHT file distributed with this
6 * source distribution.
7 *
8 * This program is free software; you can redistribute it and/or modify
9 * it under the terms of the GNU General Public License as published by
10 * the Free Software Foundation; either version 2 of the License, or
11 * (at your option) any later version.
12 *
13 * This program is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 * GNU General Public License for more details.
17 *
18 * You should have received a copy of the GNU General Public License
19 * along with this program; if not, write to the Free Software
20 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02111-1301 USA
21 *
22 */
23 #include "internal.h"
24 #include "gtkidle.h"
25
26 #ifdef HAVE_IOKIT
27 # include <CoreFoundation/CoreFoundation.h>
28 # include <IOKit/IOKitLib.h>
29 #else
30 # ifdef USE_SCREENSAVER
31 # ifdef _WIN32
32 # include "gtkwin32dep.h"
33 # else
34 /* We're on X11 and not MacOS X with IOKit. */
35 # include <X11/Xlib.h>
36 # include <X11/Xutil.h>
37 # include <X11/extensions/scrnsaver.h>
38 # include <gdk/gdkx.h>
39 # endif /* !_WIN32 */
40 # endif /* USE_SCREENSAVER */
41 #endif /* !HAVE_IOKIT */
42
43 #include "idle.h"
44
45 /**
46 * Get the number of seconds the user has been idle. In Unix-world
47 * this is based on the X Windows usage. In MS Windows this is
48 * based on keyboard/mouse usage information obtained from the OS.
49 * In MacOS X, this is based on keyboard/mouse usage information
50 * obtained from the OS, if configure detected IOKit. Otherwise,
51 * MacOS X is handled as a case of X Windows.
52 *
53 * In Debian bug #271639, jwz says:
54 *
55 * Purple should simply ask xscreensaver how long the user has been idle:
56 * % xscreensaver-command -time
57 * XScreenSaver 4.18: screen blanked since Tue Sep 14 14:10:45 2004
58 *
59 * Or you can monitor the _SCREENSAVER_STATUS property on root window #0.
60 * Element 0 is the status (0, BLANK, LOCK), element 1 is the time_t since
61 * the last state change, and subsequent elements are which hack is running
62 * on the various screens:
63 * % xprop -f _SCREENSAVER_STATUS 32ac -root _SCREENSAVER_STATUS
64 * _SCREENSAVER_STATUS(INTEGER) = BLANK, 1095196626, 10, 237
65 *
66 * See watch() in xscreensaver/driver/xscreensaver-command.c.
67 *
68 * @return The number of seconds the user has been idle.
69 */
70 #if defined(USE_SCREENSAVER) || defined(HAVE_IOKIT)
71 static time_t
pidgin_get_time_idle(void)72 pidgin_get_time_idle(void)
73 {
74 # ifdef HAVE_IOKIT
75 /* Query the IOKit API */
76
77 static io_service_t macIOsrvc = NULL;
78 CFTypeRef property;
79 uint64_t idle_time = 0; /* nanoseconds */
80
81 if (macIOsrvc == NULL)
82 {
83 mach_port_t master;
84 IOMasterPort(MACH_PORT_NULL, &master);
85 macIOsrvc = IOServiceGetMatchingService(master,
86 IOServiceMatching("IOHIDSystem"));
87 }
88
89 property = IORegistryEntryCreateCFProperty(macIOsrvc, CFSTR("HIDIdleTime"),
90 kCFAllocatorDefault, 0);
91 CFNumberGetValue((CFNumberRef)property,
92 kCFNumberSInt64Type, &idle_time);
93 CFRelease(property);
94
95 /* convert nanoseconds to seconds */
96 return idle_time / 1000000000;
97 # else
98 # ifdef _WIN32
99 /* Query Windows */
100 return (GetTickCount() - winpidgin_get_lastactive()) / 1000;
101 # else
102 /* We're on X11 and not MacOS X with IOKit. */
103
104 /* Query xscreensaver */
105 static XScreenSaverInfo *mit_info = NULL;
106 static int has_extension = -1;
107 int event_base, error_base;
108
109 if (has_extension == -1)
110 has_extension = XScreenSaverQueryExtension(GDK_DISPLAY(), &event_base, &error_base);
111
112 if (has_extension)
113 {
114 if (mit_info == NULL)
115 mit_info = XScreenSaverAllocInfo();
116
117 XScreenSaverQueryInfo(GDK_DISPLAY(), GDK_ROOT_WINDOW(), mit_info);
118 return (mit_info->idle) / 1000;
119 }
120 else
121 return 0;
122 # endif /* !_WIN32 */
123 # endif /* !HAVE_IOKIT */
124 }
125 #endif /* USE_SCREENSAVER || HAVE_IOKIT */
126
127 static PurpleIdleUiOps ui_ops =
128 {
129 #if defined(USE_SCREENSAVER) || defined(HAVE_IOKIT)
130 pidgin_get_time_idle,
131 #else
132 NULL,
133 #endif /* USE_SCREENSAVER || HAVE_IOKIT */
134 NULL,
135 NULL,
136 NULL,
137 NULL
138 };
139
140 PurpleIdleUiOps *
pidgin_idle_get_ui_ops()141 pidgin_idle_get_ui_ops()
142 {
143 return &ui_ops;
144 }
145