heads/initrd/etc/gui_functions
Matt DeVillier 32716c8ce6 gui*: Improve consistency of background color use
Persist the background color (and error state) through
the main menu and all submenus. Use warning
background color for destructive operations, error color
for errors.

Signed-off-by: Matt DeVillier <matt.devillier@puri.sm>
2021-10-15 14:42:15 -04:00

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#!/bin/sh
# Shell functions for common operations using fbwhiptail
mount_usb()
{
# Unmount any previous USB device
if grep -q /media /proc/mounts ; then
umount /media || die "Unable to unmount /media"
fi
# Mount the USB boot device
mount-usb && USB_FAILED=0 || ( [ $? -eq 5 ] && exit 1 || USB_FAILED=1 )
if [ $USB_FAILED -ne 0 ]; then
whiptail $BG_COLOR_ERROR --title 'USB Drive Missing' \
--msgbox "Insert your USB drive and press Enter to continue." 16 60
mount-usb && USB_FAILED=0 || ( [ $? -eq 5 ] && exit 1 || USB_FAILED=1 )
if [ $USB_FAILED -ne 0 ]; then
whiptail $BG_COLOR_ERROR --title 'ERROR: Mounting /media Failed' \
--msgbox "Unable to mount USB device" 16 60
exit 1
fi
fi
}
file_selector()
{
FILE=""
FILE_LIST=$1
MENU_MSG=${2:-"Choose the file"}
MENU_TITLE=${3:-"Select your File"}
# create file menu options
if [ `cat "$FILE_LIST" | wc -l` -gt 0 ]; then
option=""
while [ -z "$option" ]
do
MENU_OPTIONS=""
n=0
while read option
do
n=`expr $n + 1`
option=$(echo $option | tr " " "_")
MENU_OPTIONS="$MENU_OPTIONS $n ${option}"
done < $FILE_LIST
MENU_OPTIONS="$MENU_OPTIONS a Abort"
whiptail --clear --title "${MENU_TITLE}" \
--menu "${MENU_MSG} [1-$n, a to abort]:" 20 120 8 \
-- $MENU_OPTIONS \
2>/tmp/whiptail || die "Aborting"
option_index=$(cat /tmp/whiptail)
if [ "$option_index" = "a" ]; then
option="a"
return
fi
option=`head -n $option_index $FILE_LIST | tail -1`
if [ "$option" == "a" ]; then
return
fi
done
if [ -n "$option" ]; then
FILE=$option
fi
else
whiptail $BG_COLOR_ERROR --title 'ERROR: No Files Found' \
--msgbox "No Files found matching the pattern. Aborting." 16 60
exit 1
fi
}