refreshVP.sh 5.37 KB
Newer Older
David Beniamine's avatar
David Beniamine committed
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18
#!/bin/bash

# Copyright (C) 2015  Beniamine, David <David.Beniamine@tetras-libre.fr>
# Author: Beniamine, David <David.Beniamine@tetras-libre.fr>
#
# 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 3 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, see <http://www.gnu.org/licenses/>.

David Beniamine's avatar
David Beniamine committed
19 20
timeout=10
DEBUG=true
David Beniamine's avatar
Fix #67  
David Beniamine committed
21 22 23
log(){
    if $DEBUG
    then
David Beniamine's avatar
David Beniamine committed
24
        echo "$@" | tee /var/log/vp.log
David Beniamine's avatar
Fix #67  
David Beniamine committed
25 26 27
    fi
}
log  "starting VP $(date)"
David Beniamine's avatar
David Beniamine committed
28
# Get rights to access display
David Beniamine's avatar
David Beniamine committed
29 30 31 32 33 34 35
user=$(who | grep -v "root" | head -n 1 | cut -d ' ' -f 1)
if [ ! -z "$user" ]
then
	export DISPLAY=:0
	export XAUTHORITY="/home/$user/.Xauthority"
fi

David Beniamine's avatar
David Beniamine committed
36 37
DIR=$(realpath $(dirname $0))

38 39 40 41 42 43 44 45
# show max between two res
max_res(){
    [ -z "$2" ] && echo $1 && return
    first=$(echo $1 | sed 's/x/*/' | bc)
    second=$(echo $2 | sed 's/x/*/' | bc)
    [ $first -ge $second ] && echo $1 || echo $2
}

David Beniamine's avatar
David Beniamine committed
46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63
# Default main screens (external VGA or internal screen)
MAIN_SCREENS="DP-3 VGA-1 LVDS-1 eDP1"

# auto detect main screen
for m in $MAIN_SCREENS
do
	if [ ! -z "$(xrandr | grep " connected" | grep $m)" ]
	then
		MAIN_SCREEN=$m
		break
	fi
done

if [ -z "$MAIN_SCREEN" ]
then
	# No main screen : use the first connected
	MAIN_SCREEN=$(xrandr | grep " connected" | head -n 1 | cut -d ' ' -f 1)
fi
David Beniamine's avatar
Fix #67  
David Beniamine committed
64
log  "MAIN_SCREEN '$MAIN_SCREEN'"
David Beniamine's avatar
David Beniamine committed
65 66

screens=$(xrandr | grep " connected" | cut -f 1 -d ' ' \
David Beniamine's avatar
David Beniamine committed
67
    | sed -e 's/ /\n/g' | grep -v "\<$MAIN_SCREEN\>")
David Beniamine's avatar
David Beniamine committed
68

David Beniamine's avatar
Fix #67  
David Beniamine committed
69 70
log  "SCREENS '$screens'"
if [ -z "$screens$MAIN_SCREEN" ]
71
then
David Beniamine's avatar
Fix #67  
David Beniamine committed
72
    log  "noscreens exiting on $(date)"
73 74 75
    exit
fi

David Beniamine's avatar
David Beniamine committed
76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91
clone(){
    # Auto detect best resolution
    for m in $(xrandr | awk -v pattern="^$MAIN_SCREEN" '/^.* connected/{IN=0} $0 ~ pattern {IN=1} /^ /{if(IN==1){print $1}}')
    do
        # echo "testing mode $m"
        OTHERS=$(xrandr | awk -v pattern="^$MAIN_SCREEN" '/^.* connected/{IN=1} $0 ~ pattern {IN=0} {if(IN==1){print $1}}')
        if [ -z "$OTHERS" ]
        then
            # one screen look for best common resolution
            mode=$(max_res $m $mode)
        else
            # Several screen look for best common resolution
            for line in $OTHERS
            do
                # echo "line $line"
                if [[ $line =~ [0-9]* ]]
92
                then
David Beniamine's avatar
David Beniamine committed
93 94 95 96 97 98 99 100 101 102 103 104
                    # New mode
                    if [ "$line" == "$m" ]
                    then
                        found=1
                    fi
                else
                    # New screen
                    if [ "$found" == 0 ]
                    then
                        break
                    fi
                    found=0
105
                fi
David Beniamine's avatar
David Beniamine committed
106 107 108 109 110 111
                # echo "Found ? $found"
            done
            if [ "$found" == 1 ]
            then
                mode="$m"
                break
112 113
            fi
        fi
David Beniamine's avatar
David Beniamine committed
114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139
    done
    # echo "mode $mode"
    
    # Primary screen
    cmd="xrandr --output $MAIN_SCREEN --auto --mode $mode --rotate normal --primary"
    log  "command $cmd"
    
    # Add all connected as copy
    prev_s=$MAIN_SCREEN
    for s in $(echo -e $screens)
    do
        cmd="$cmd --output $s --auto --mode $mode --same-as $prev_s --rotate normal"
        prev_s="$s"
    done
    log  "command after all outputs $cmd"
    
    # Disable all disconnected screens
    screens=$(xrandr | grep " disconnected" | cut -f 1 -d ' ' )
    for s in $(echo -e $screens)
    do
    	cmd="$cmd --output $s --off"
    done
    log  "command after all offs $cmd"
    
    run_xrandr_cmd $cmd
}
David Beniamine's avatar
David Beniamine committed
140

David Beniamine's avatar
David Beniamine committed
141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165
extend(){
    log "I should extend screens on $1"
    case $1 in
        "gauche")
            placement="--left-of"
            ;;
        "droite")
            placement="--right-of"
            ;;
        "haut")
            placement="--above"
            ;;
        "bas")
            placement="--below"
            ;;
    esac
    cmd="xrandr --output $MAIN_SCREEN --primary --auto"
    log $cmd
    for s in $screens
    do
        cmd="$cmd --output $s $placement $MAIN_SCREEN --auto" 
        log $cmd
    done
    run_xrandr_cmd $cmd
}
David Beniamine's avatar
David Beniamine committed
166

David Beniamine's avatar
David Beniamine committed
167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184
run_xrandr_cmd(){
    # Actually do stuff
    old_cmd=$(cat /tmp/vp)
    new_cmd="$@"
    timeout
    echo $new_cmd > /tmp/vp
    $new_cmd
    log  "Runned $new_cmd"
    zenity --question --title "Configuration des écrans" \
        --text "La configuration des écrans vous convient-elle ?" \
        --timeout=$timeout
    if [ $? != 0 ]
    then
        log "Restoring old command : $old_cmd"
        $old_cmd
    fi
    log "exiting on $(date)"
}
David Beniamine's avatar
David Beniamine committed
185

David Beniamine's avatar
David Beniamine committed
186 187 188 189 190 191 192 193
choice=$(zenity --entry --title "Écran connecté" \
    --text "Selection du mode d'affichage" \
    --entry-text "Clone" 'Écrans étendus à droite' 'Écrans étendus à gauche' \
    'Écrans étendus en haut' 'Écrans étendus en bas' \
    --timeout $timeout)
code=$?

log "Choice '$choice' / code $code"
David Beniamine's avatar
David Beniamine committed
194

David Beniamine's avatar
David Beniamine committed
195
if [ -z "$choice" ]
David Beniamine's avatar
Fix #67  
David Beniamine committed
196
then
David Beniamine's avatar
David Beniamine committed
197 198 199 200 201 202 203 204 205 206 207 208 209 210
    if [ "$code" -eq 1 ]
    then
        # give up
        return
    else
        # timeout
        log "timeout"
        clone
    fi
elif [ "$choice" == "Clone" ]
then
    clone
else
    extend $(echo $choice | cut -d ' ' -f 4)
David Beniamine's avatar
Fix #67  
David Beniamine committed
211
fi