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#!/bin/bash
###########################################################################
# #
# Powersave Daemon #
# #
# Copyright (C) 2004,2005 SUSE Linux Products GmbH #
# #
# 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 2 of the License, or (at you #
# 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, write to the Free Software Foundation, Inc., #
# 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA #
# #
###########################################################################
# first get helper functions (e.g. DEBUG, load_scheme, ...)
#. "/usr/lib/powersave/scripts/helper_functions"
# program locations:
KDIALOG_BIN=$KDE_BINDIR/kdialog
ZENITY_BIN=$GNOME_BINDIR/zenity
XMESSAGE_BIN=/usr/X11R6/bin/xmessage
# this fixes an obscure bug if you restart powersaved from an root terminal
# that has access to the X server.
unset XAUTHORITY
get_x_user(){
[ -n "$X_USER" -a -n "$DISP" ] && return 0
local DUMMY
read DUMMY X_USER DISP DUMMY < <($WTTYHX -v)
return 0
}
get_x_users(){
local DUMMY i
i=0
KDE_RUNNING[$i]=false
while read X_USERS[$i] DISPS[$i] DUMMY; do
su - ${X_USERS[$i]} -c "DISPLAY=${DISPS[$i]} $KDE_BINDIR/dcopfind kdesktop >/dev/null 2>&1" && \
KDE_RUNNING[$i]=true
let i++
done < <($WTTYHX -a)
return 0
}
# chosses the appropriate popup which is available
# it is one of kdialog, zenity or simply xmessage
# this should be handled by graphical clients like kpowersave. We leave
# this in here for those who want to do homemade notification, a stock
# installation will soon only use the xmessage popup as a fallback.
choose_popup(){
local MESSAGE="$1"
local LEVEL="$2"
local RET="1"
# x_helper_functions
if $KDE_RUNNING; then
popup_kdialog "$MESSAGE" "$LEVEL"
RET=$?
elif $ZENITY; then
popup_zenity "$MESSAGE" "$LEVEL"
RET=$?
else
popup_xmessage "$MESSAGE" "$LEVEL"
RET=$?
fi
return $RET
}
check_x_access(){
local RET
[ -n "$X_USER" -a -n "$DISP" ] || return 1
su - $X_USER -c "DISPLAY=$DISP xset q > /dev/null"
RET=$?
return $RET
}
# the popup_* functions pop up a window containing $MESSAGE, a ok or a yes and a no button.
#
# no KDE, no GNOME: just xmessage. Not too nice.
popup_xmessage(){
local ARG RET
local MESSSAGE="$1"
local LEVEL="$2"
local WAIT="&"
case "$LEVEL" in
QUESTION)
ARG="-buttons Yes,No"
WAIT="" ;;
ERROR|WARN|INFO)
ARG="" ;;
*) ARG=""
DEBUG "wrong LEVEL in popup_xmessage: '$LEVEL', assuming 'empty'" WARN ;;
esac
get_x_user
if check_x_access; then
su - $X_USER -c "DISPLAY=$DISP $XMESSAGE_BIN -center -fn \
'-misc-fixed-bold-r-*-*-18-*-*-*-*-*-iso10646-1' $ARG\
'`echo $MESSAGE|fmt -w 60 `' $WAIT" # we re-format it to 60 chars
RET=$?
else
RET=255
fi
[ "$RET" = "101" ] && RET=0 # Yes
[ "$RET" = "102" ] && RET=1 # No
return $RET
}
# you want this actually only if you are really running KDE...
popup_kdialog(){
local ARG
local MSG="`echo $MESSAGE`" # kdialog does word-wrapping
local WAIT="&"
case "$LEVEL" in
ERROR) ARG="--error" ;;
WARN) ARG="--sorry" ;;
INFO) ARG="--msgbox" ;;
QUESTION) ARG="--yesno"
WAIT=""
;;
*) ARG="--msgbox"
DEBUG "wrong LEVEL in popup_kdialog: '$LEVEL', assuming 'INFO'" WARN ;;
esac
get_x_user
[ "$X_USER" -a -n "$DISP" ] && \
su - $X_USER -c "DISPLAY=$DISP $KDIALOG_BIN $ARG \"$MSG\" $WAIT"
return $?
}
# zenity is more lightweight than kdialog, but it's not in the default install
popup_zenity(){
local ARG="--question"
local MSG="`echo $MESSAGE`" # zenity does word-wrapping
local WAIT="&"
case "$LEVEL" in
ERROR) ARG="--error" ;;
WARN) ARG="--info" ;;
INFO) ARG="--info" ;;
QUESTION) ARG="--question"
WAIT=""
;;
*) ARG="--info"
DEBUG "wrong LEVEL in popup_zenity: '$LEVEL', assuming 'INFO'" WARN ;;
esac
get_x_user
if check_x_access; then
su - $X_USER -c "DISPLAY=$DISP $ZENITY_BIN $ARG --text=\"$MSG\" $WAIT"
return $?
else
return 255
fi
}
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