bin/suspend_screensaver

   1 #!/bin/bash
   2 # lightsOn.sh
   3
   4 # Copyright (c) 2011 iye.cba at gmail com
   5 # url: https://github.com/iye/lightsOn
   6 # This script is licensed under GNU GPL version 2.0 or above
   7
   8 # Description: Bash script that prevents the screensaver and display power
   9 # management (DPMS) to be activated when you are watching Flash Videos
  10 # fullscreen on Firefox and Chromium.
  11 # Can detect mplayer and VLC when they are fullscreen too but I have disabled
  12 # this by default.
  13 # lightsOn.sh needs xscreensaver or kscreensaver to work.
  14
  15 # HOW TO USE: Start the script with the number of seconds you want the checks
  16 # for fullscreen to be done. Example:
  17 # "./lightsOn.sh 120 &" will Check every 120 seconds if Mplayer,
  18 # VLC, Firefox or Chromium are fullscreen and delay screensaver and Power Management if so.
  19 # You want the number of seconds to be ~10 seconds less than the time it takes
  20 # your screensaver or Power Management to activate.
  21 # If you don't pass an argument, the checks are done every 50 seconds.
  22
  23
  24 # Modify these variables if you want this script to detect if Mplayer,
  25 # VLC or Firefox Flash Video are Fullscreen and disable
  26 # xscreensaver/kscreensaver and PowerManagement.
  27 mplayer_detection=0
  28 vlc_detection=0
  29 firefox_flash_detection=1
  30 chromium_flash_detection=1
  31
  32
  33 # YOU SHOULD NOT NEED TO MODIFY ANYTHING BELOW THIS LINE
  34
  35 [[ $(which xdg-screensaver 2> /dev/null) ]] || { echo "You need to install xdg-utils!"; exit 1; }
  36
  37 # enumerate all the attached screens
  38 displays=""
  39 while read id
  40 do
  41     displays="$displays $id"
  42 done< <(xvinfo | sed -n 's/^screen #\([0-9]\+\)$/\1/p')
  43
  44 delayed=0
  45 checkFullscreen()
  46 {
  47     # loop through every display looking for a fullscreen window
  48     for display in $displays
  49     do
  50         #get id of active window and clean output
  51         activ_win_id=`DISPLAY=:0.${display} xprop -root _NET_ACTIVE_WINDOW`
  52         #activ_win_id=${activ_win_id#*# } #gives error if xprop returns extra ", 0x0" (happens on some distros)
  53         activ_win_id=${activ_win_id:40:9}
  54
  55         # Skip invalid window ids (commented as I could not reproduce a case
  56         # where invalid id was returned, plus if id invalid
  57         # isActivWinFullscreen will fail anyway.)
  58         #if [ "$activ_win_id" = "0x0" ]; then
  59         #     continue
  60         #fi
  61
  62         # Check if Active Window (the foremost window) is in fullscreen state
  63         isActivWinFullscreen=`DISPLAY=:0.${display} xprop -id $activ_win_id | grep _NET_WM_STATE_FULLSCREEN`
  64             if [[ "$isActivWinFullscreen" = *NET_WM_STATE_FULLSCREEN* ]];then
  65                 isAppRunning
  66                 var=$?
  67                 if [[ $delayed -eq 0 && $var -eq 1 ]];then
  68                     delayScreensaver
  69                     delayed=1
  70                 elif [[ $delayed -eq 1 && $var -ne 1 ]]; then
  71                     enableScreensaver
  72                     delayed=0
  73                 fi
  74
  75             fi
  76     done
  77 }
  78
  79
  80
  81
  82
  83 # check if active windows is mplayer, vlc or firefox
  84 #TODO only window name in the variable activ_win_id, not whole line.
  85 #Then change IFs to detect more specifically the apps "<vlc>" and if process name exist
  86
  87 isAppRunning()
  88 {
  89     #Get title of active window
  90     activ_win_title=`xprop -id $activ_win_id | grep "WM_CLASS(STRING)"`   # I used WM_NAME(STRING) before, WM_CLASS more accurate.
  91
  92
  93     # Check if user want to detect Video fullscreen on Firefox, modify variable firefox_flash_detection if you dont want Firefox detection
  94     if [ $firefox_flash_detection == 1 ];then
  95         if [[ "$activ_win_title" = *unknown* || "$activ_win_title" = *plugin-container* ]];then
  96         # Check if plugin-container process is running
  97             flash_process=`pgrep -l plugin-containe | grep -wc plugin-containe`
  98             #(why was I using this line avobe? delete if pgrep -lc works ok)
  99             #flash_process=`pgrep -lc plugin-containe`
 100             if [[ $flash_process -ge 1 ]];then
 101                 return 1
 102             fi
 103         fi
 104     fi
 105
 106
 107     # Check if user want to detect Video fullscreen on Chromium, modify variable chromium_flash_detection if you dont want Chromium detection
 108     if [ $chromium_flash_detection == 1 ];then
 109         if [[ "$activ_win_title" = *exe* ]];then
 110             # Check if Chromium Flash process is running
 111             flash_process=`pgrep -fl "chromium --type=plugin --plugin-path=/usr/lib/mozilla/plugins/libflashplayer.so" | wc -l`
 112             if [[ $flash_process -ge 1 ]];then
 113                 return 1
 114             fi
 115         fi
 116     fi
 117
 118
 119     #check if user want to detect mplayer fullscreen, modify variable mplayer_detection
 120     if [ $mplayer_detection == 1 ];then
 121         if [[ "$activ_win_title" = *mplayer* || "$activ_win_title" = *MPlayer* ]];then
 122             #check if mplayer is running.
 123             mplayer_process=`pgrep -l mplayer | grep -wc mplayer`
 124             if [ $mplayer_process -ge 1 ]; then
 125                 return 1
 126             fi
 127         fi
 128     fi
 129
 130
 131     # Check if user want to detect vlc fullscreen, modify variable vlc_detection
 132     if [ $vlc_detection == 1 ];then
 133         if [[ "$activ_win_title" = *vlc* ]];then
 134             #check if vlc is running.
 135             vlc_process=`pgrep -l vlc | grep -wc vlc`
 136             if [ $vlc_process -ge 1 ]; then
 137                 return 1
 138             fi
 139         fi
 140     fi
 141
 142
 143 return 0
 144 }
 145
 146
 147 delayScreensaver()
 148 {
 149
 150     # reset inactivity time counter so screensaver is not started
 151     xdg-screensaver suspend $activ_win_id
 152
 153     #Check if DPMS is on. If it is, deactivate and reactivate again. If it is not, do nothing.
 154     dpmsStatus=`xset -q | grep -ce 'DPMS is Enabled'`
 155     if [ $dpmsStatus == 1 ];then
 156         xset -dpms
 157         xset dpms
 158     fi
 159
 160 }
 161
 162 enableScreensaver()
 163 {
 164     xdg-screensaver resume $activ_win_id
 165 }
 166
 167
 168 delay=$1
 169
 170
 171 # If argument empty, use 50 seconds as default.
 172 if [ -z "$1" ];then
 173     delay=50
 174 fi
 175
 176
 177 # If argument is not integer quit.
 178 if [[ $1 = *[^0-9]* ]]; then
 179     echo "The Argument \"$1\" is not valid, not an integer"
 180     echo "Please use the time in seconds you want the checks to repeat."
 181     echo "You want it to be ~10 seconds less than the time it takes your screensaver or DPMS to activate"
 182     exit 1
 183 fi
 184
 185
 186 while true
 187 do
 188     checkFullscreen
 189     sleep $delay
 190 done
 191
 192
 193 exit 0