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Diffstat (limited to 'handlers/easydialog.sh')
| -rw-r--r-- | handlers/easydialog.sh | 182 |
1 files changed, 182 insertions, 0 deletions
diff --git a/handlers/easydialog.sh b/handlers/easydialog.sh new file mode 100644 index 0000000..ce7d31e --- /dev/null +++ b/handlers/easydialog.sh @@ -0,0 +1,182 @@ +#!/bin/bash + +# copyright 2002 lmoore@tump.com under the terms of the GNU LGPL. + +# whiptail has trouble being called in the foo=$(whiptail ...) fashion for +# some reason. this is very annoying. this means that we need to use +# temporary files to store the answers from the input and list based boxes +# and then read the answers into a REPLY variable. that just really +# stinks, oh well, that's what you get when you have a weak link +# implementation... +# +# inputBox and passwordBox could be refactored to use a common function + +test -z "$WIDTH" && WIDTH=0 +test -z "$HEIGHT" && HEIGHT=0 +BACKTITLE="" +DIALOG=dialog +HELP= + +setApplicationTitle() { + BACKTITLE=$* +} + +setHelp() { + HELP="$@" +} + +setDimension() { + WIDTH=$1 + HEIGHT=$2 +} + +booleanBox() { + $DIALOG --backtitle "$BACKTITLE" --title "$1" \ + --yesno "$2" $HEIGHT $WIDTH +} + +msgBox() { + $DIALOG --backtitle "$BACKTITLE" --title "$1" \ + --msgbox "$2" $HEIGHT $WIDTH +} + +gaugeBox() { + $DIALOG --backtitle "$BACKTITLE" --title "$1" \ + --gauge "$2" $HEIGHT $WIDTH 0 +} + +inputBox() { + local temp=$(mktemp -t) || exit 1 + trap "rm -f $temp" 0 + REPLY= + $DIALOG --backtitle "$BACKTITLE" --title "$1" \ + --inputbox "$2" $HEIGHT $WIDTH "$3" 2> $temp + local status=$? + [ $status = 0 ] && REPLY=$(cat $temp) + rm -f $temp + return $status +} + +# Xdialog and {dialog,whiptail} use different mechanism to "qoute" the +# values from a checklist. {dialog,whiptail} uses standard double quoting +# while Xdialog uses a "/" as the separator. the slash is arguably better, +# but the double quoting is more standard. anyway, this function can be +# overridden to allow a derived implementation to change it's quoting +# mechanism to the standard double-quoting one. it receives two +# arguements, the file that has the data and the box type. +_listReplyHook() { + cat $1 +} + +# this is the base implementation of all the list based boxes, it works +# out nicely that way. the real function just passes it's arguments to +# this function with an extra argument specifying the actual box that +# needs to be rendered. +_genericListBox() { + local box=$1 + shift 1 + local title=$1 + local text=$2 + shift 2 + local temp=$(mktemp -t) || exit 1 + trap "rm -f $temp" 0 + REPLY= + $DIALOG $HELP --backtitle "$BACKTITLE" --title "$title" \ + $box "$text" $HEIGHT $WIDTH 10 \ + "$@" 2> $temp + local status=$? + [ $status = 0 ] && REPLY=$(_listReplyHook $temp $box) + rm -f $temp + return $status +} + +menuBox() { + _genericListBox --menu "$@" +} + +menuBoxHelp() { + HELP="--item-help" + _genericListBox --menu "$@" + status=$? + HELP= + return $status +} + +menuBoxHelpFile() { + HELP="--help-button" + _genericListBox --menu "$@" + status=$? + HELP= + return $status +} + + +checkBox() { + _genericListBox --checklist "$@" +} + +radioBox() { + _genericListBox --radiolist "$@" +} + +textBox() { + $DIALOG --backtitle "$BACKTITLE" --title "$1" --textbox "$2" $HEIGHT $WIDTH +} + +passwordBox() { + local temp=$(mktemp -t) || exit 1 + trap "rm -f $temp" 0 + REPLY= + $DIALOG --backtitle "$BACKTITLE" --title "$1" \ + --passwordbox "$2" $HEIGHT $WIDTH 2> $temp + local status=$? + [ $status = 0 ] && REPLY=$(cat $temp) + rm -f $temp + return $status +} + +_form_gap=2 +startForm() { + _form_title=$1 + _form_items=0 + _form_labels= + _form_text= +} + +formItem() { + _form_labels[$_form_items]=$1 + _form_text[$_form_items]=$2 + let "_form_items += 1" +} + +displayForm() { + local temp=$(mktemp -t) || exit 1 + + max_length=0 + for ((i=0; i < ${#_form_labels[@]} ; i++)); do + label=${_form_labels[$i]} + length=`expr length $label` + if [ $length -gt $max_length ]; then + max_length=$length + fi + done + let "max_length += 2" + + local form= + local xpos=1 + for ((i=0; i < $_form_items ; i++)); do + label=${_form_labels[$i]} + text=${_form_text[$i]} + if [ "$text" == "" ]; then + text='_empty_' + fi + form=`echo -e "$form $label $xpos 1" $text "$xpos $max_length 30 30"` + let "xpos += _form_gap" + done + + $DIALOG --form "$_form_title" 0 0 20 $form 2> $temp + local status=$? + [ $status = 0 ] && REPLY=$(cat $temp) + rm -f $temp + return $status +} |