source: install/dialoglib.sh @ ab298e7

#!/bin/bash
#Universal library for dialog and Xdialog.
#This should work transparantly in textmode and grapical mode
#(C)DatuX 2005 - all rights reserved

if [ ! "$LANG" ]; then
        export LANG="en"
fi
source ./lang_$LANG.sh || exit 1

WAIT=1
TIMEOUT=""
BUTTONS=""
NEXTCANCEL="--ok-label '`_Next` >>' --cancel-label '`_Cancel`'"
YESNO="--ok-label '`_Yes`' --cancel-label '`_No`'"

showlicense()
{
        #kill old stuff
        kill $PID &>/dev/null
        PID=
        BG=""
        if [ $WAIT == "0" ]; then
                BG='&';
        fi
        
        if [ $DISPLAY ]; then
                eval Xdialog --cr-wrap --ok-label "'`_Accept` >>'" --no-close --cancel-label "'`_NotAccepted`'" --left --stdout --title "'$TITLE'" $BUTTONS "$@" $TIMEOUT $BG 
        else
                BT="`_Installation`";
                eval dialog --cr-wrap --ok-label "'`_Accept` >>'" --cancel-label "'`_NotAccepted`'" --yes-label "`_Yes`" --no-label "`_No`" --stdout --backtitle "'$BT'" "$DEF" --title "'$TITLE'" "$@" $BG 
        fi
        RET=$?
        PID=$!
        return $RET
}


dialogrun()
{
        #kill old stuff
        kill $PID &>/dev/null
        PID=
        BG=""
        if [ $WAIT == "0" ]; then
                BG='&';
        fi
        
        if [ $DISPLAY ]; then
                eval Xdialog --cr-wrap --separator '\ ' --left --stdout --title "'$TITLE'" $BUTTONS "$@" $TIMEOUT $BG 
        else
                BT="`_Installation`";
                eval dialog --cr-wrap --yes-label "`_Yes`" --no-label "`_No`" --stdout --backtitle "'$BT'" "$DEF" --title "'$TITLE'" "$@" $BG 
        fi
        RET=$?
        PID=$!
        return $RET
}

menu()
{
        dialogrun $NEXTCANCEL --menu "'$QUERY'" 15 70 5 "$@"
        return $?
}

progress()
{
        WAIT=0
        BUTTONS="--no-buttons"
        TIMEOUT="999999"
        dialogrun $NEXTCANCEL --infobox "\"$@\"" 0 0
        WAIT=1
        BUTTONS=""
        TIMEOUT=""
        sleep 1;
}

msgbox()
{
        dialogrun $NEXTCANCEL --msgbox "\"$@\"" 0 0 
}

inputbox()
{
        dialogrun $NEXTCANCEL --no-cancel --inputbox "'$QUERY'" 0 0 $1
}

accept()
{       
        showlicense $YESNO --yesno "\"$@\"" 0 0
}
        
yesno()
{
        dialogrun $YESNO --yesno "\"$@\"" 0 0
}

nextcancel()
{
        dialogrun $NEXTCANCEL --yesno "\"$@\"" 0 0
}

abort()
{
        dialogrun $NEXTCANCEL --msgbox "\"$@\n`_InstallationAborted`\"" 0 0
        exit 1;
}

gauge()
{
        dialogrun $NEXTCANCEL --gauge "\"$@\"" 10 70
}

license()
{
        showlicense $NEXTCANCEL --textbox "\"$@\"" 20 70 
}

showfile()
{
        dialogrun $NEXTCANCEL --textbox "\"$@\"" 20 70 
}

checklist()
{
        dialogrun $NEXTCANCEL --separate-output --checklist "'$QUERY'" 15 70 8 "$@"
}

#replace newlines with \n
quote()
{
        tr '\n' '#' <<<"$1" |sed 's/#/\\n/g' |sed "s/'//g"
}

#enter a temporary shell, with extra helptext for prompt
shell()
{
        if [ "$DISPLAY" ]; then
                PS1="$*\n# " xterm -e bash --noprofile -l
        else
                PS1="$*\n# " bash --noprofile -l
        fi
}

execute()
{
        if [ "$DISPLAY" ]; then
                echo 1 > /tmp/exitcode
                xterm -T "`_Processing`" -e "$* ; echo \$? > /tmp/exitcode" 
                EXITCODE=`cat /tmp/exitcode`
                return $EXITCODE
        else
                $*
                return $?
        fi
}