lemonbar.sh

#!/bin/sh
# Main panel parameters
GEOMETRY="1280x18x0x0"
BCKGRND="#333333"
FRGRND="#d4d0c8"
UNDRLN="#d4d0c8"
FONT_I='Fira Mono:Medium:size=9'
FONT_II='FontAwesome:size=11'
# Separator
BarSprtr()
{
	echo "%{F#555555} | %{F-}"
}
# Dmenu as a "start button". "%{T2}" and "%{T1}" things means font #1 and font #2
# slots/shortcuts.
BarDmenu()
{
	Dmenu_display="%{T2}  %{T1}"
	Dmenu_cmd='dmenu_run -i -nb "#D4D0C8" -sb "#333333" -sf "#D4D0C8"'
	echo "%{A:$Dmenu_cmd:}$Dmenu_display%{A}"
}
# Interactive tags indicator. Left click is supported as well as a scroll
# (tat+/tag-). Current tab indicated by underline.
BarTags()
{
	CURTAG=$(xprop -root _NET_CURRENT_DESKTOP | awk '{print $3}')
	if [ "$CURTAG" = "0" ]
	then
		tag_one="%{+u+o} term %{-u-o}"
	else
		tag_one="term"
	fi
	tag_one_cmd="xdotool set_desktop 0"
	if [ "$CURTAG" = "1" ]
	then
		tag_two="%{+u+o} www %{-u-o}"
	else
		tag_two="www"
	fi
	tag_two_cmd="xdotool set_desktop 1"
	if [ "$CURTAG" = "2" ]
	then
		tag_three="%{+u+o} text %{-u-o}"
	else
		tag_three="text"
	fi
	tag_three_cmd="xdotool set_desktop 2"
	if [ "$CURTAG" = "3" ]
	then
		tag_four="%{+u+o} media %{-u-o}"
	else
		tag_four="media"
	fi
	tag_four_cmd="xdotool set_desktop 3"

	PrevTag="xdotool set_desktop $(($(xdotool get_desktop)-1))"
	NextTag="xdotool set_desktop $(($(xdotool get_desktop)+1))"
	AllTags="%{A:$tag_one_cmd:}$tag_one%{A} %{A:$tag_two_cmd:}$tag_two%{A} \
		%{A:$tag_three_cmd:}$tag_three%{A} %{A:$tag_four_cmd:}$tag_four%{A}"
	echo "%{A4:$PrevTag:}%{A5:$NextTag:}$AllTags%{A}%{A}"
}
# Current window name or root window name if there's no active window.
# BarCWindow()
# {
# 	CWINDOW=$(xprop -id $(xprop -root _NET_ACTIVE_WINDOW | awk '{print $5}') | grep "_NET_WM_NAME" | cut -c 29- | sed 's/^.\(.*\).$/\1/' | cut -c -40 2> /dev/null)
# 	ROOTWINDOW=$(xprop -root WM_NAME | cut -c 19- | sed 's/^.\(.*\).$/\1/' 2> /dev/null)
# 	if [ -n "$CWINDOW" ]
# 	then
# 		echo " ${CWINDOW}"
# 	else
# 		echo "${ROOTWINDOW}"
# 	fi
# }

BarMusak()
{
	if [ -n "$(pidof cmus)" ]
		then
		State=$(cmus-remote -Q 2> /dev/null | grep status | cut -d " " -f 2-)
		Artist=$(cmus-remote -Q 2> /dev/null | grep "tag artist " | cut -d " " -f 3-)
		Title=$(cmus-remote -Q 2> /dev/null | grep title | cut -d " " -f 3-)
		Stream=$(cmus-remote -Q 2> /dev/null | grep stream | cut -d " " -f 2-)
		Filename=$(cmus-remote -Q 2> /dev/null | grep file | cut -d " " -f 2- | xargs -0 basename)
		Muspause="cmus-remote -u"
		Musprev="cmus-remote -r"
		Musnext="cmus-remote -n"
		Musvolmin="cmus-remote -v -2%"
		Musvolpl="cmus-remote -v +2%"
		if [ "$State" = "playing" ]
		then
			State=""
		elif [ "$State" = "stopped" ]
		then
			State=""
		elif [ "$State" = "paused" ]
		then
			State=""
		fi
		if [ -n "$Stream" ]
		then
			MusDisplay="$State $Stream"
		elif [ -n "$Artist" ] && [ -n "$Title" ]
		then
			if [ -n "$Artist" ]
			then
				Artist=" $Artist — "
			fi
			if [ -n "$Title" ]
			then
				Title="$Title"
			fi
			MusDisplay="$State $Artist$Title"
		else
			MusDisplay="$State $Filename"
		fi
		MusDisplay=$(echo $MusDisplay | cut -c -60 2> /dev/null)
		echo "%{A1:$Musprev:}%{A2:$Muspause:}%{A3:$Musnext:}%{A5:$Musvolmin:}%{A4:$Musvolpl:}$MusDisplay%{A}%{A}%{A}%{A}%{A}"
	fi
}

BarWeather()
{
	weatherURL='http://www.accuweather.com/en/ru/omsk/294463/weather-forecast/294463'
	weather=$(wget -q -T 1 -O- "$weatherURL" | awk -F\' '/acm_RecentLocationsCarousel\.push/{print $10"°C" }'| head -1)
	echo " $weather"
}

# Keyboard layout. Stupid dirty hack that uses an LED-indicators state, which
# can be setted to indicate current layout. In my case that's scroll lock LED.
BarKeyboard()
{
	KbdLayout=$(xset q | grep LED | cut -c66)
	case $KbdLayout in
		[4567]) KbdLayout=" %{U#86ABD9}%{+u}Ru%{-u}%{U-}";;
		[0123]) KbdLayout=" %{U#D70751}%{+u}En%{-u}%{U-}";;
	esac
	echo "$KbdLayout"
}
# Volume (alsa Master channel) state. Will dim volume color and change icon
# if it's muted. Also clickable (terminal with alsamixer).
BarVolume()
{
	Vol_Stts=$(amixer get PCM | tail -n 1 | cut -d '[' -f 4 | sed 's/].*//g')
	Vol_Lvl=$(amixer get PCM | tail -n 1 | cut -d '[' -f 2 | sed 's/%.*//g')
	Vol_Plus="amixer set PCM 1%+"
	Vol_Mns="amixer set PCM 1%-"
	Vol_Mute="amixer set PCM toggle"
	if [ "$Vol_Stts" = "on" ]
	then
		display="%{T2}%{T1} $Vol_Lvl"
	else
		display="%{T2}%{T1}%{F#909090} $Vol_Lvl%{F-}"
	fi
	Vol_Mix="xfce4-terminal -x alsamixer"
	echo "%{A1:$Vol_Mix:}%{A3:$Vol_Mute:}%{A4:$Vol_Plus:}%{A5:$Vol_Mns:}$display%{A}%{A}%{A}%{A}"
}
# Just clock + "cal" application in a terminal on a left click.
BarClock()
{
	DATE=$(date "+%a, %d %b ")
	TIME=$(date "+%H:%M")
	# 	echo -n "%{T2}%{T1} %{F#909090}$DATE%{F-}"
	Clock_display="%{T2}%{T1} %{F#d4d0c8}$TIME"
	Clock_cmd="xfce4-terminal --hide-borders --geometry=22x9 -x bash -c 'ncal -Mb ; read'"
	echo "%{A:$Clock_cmd:}$Clock_display%{A}"
}
# Stupid logout button that shows fancy dialog-based logout window lo a left click.
BarLogout()
{
	Logout_display="%{T2} %{T1}"
	Logout_cmd="xfce4-terminal --hide-borders --geometry=47x15 -x bbqexit.sh"
	echo "%{A:$Logout_cmd:}$Logout_display%{A} "
}
# Summary of all things above piped to the lemonbar and to /bin/sh (for buttons/commands).
while true ; do
	echo "%{l}$(BarDmenu)$(BarSprtr)$(BarTags)$(BarSprtr)\
		%{r}$(BarMusak)$(BarSprtr)$(BarWeather)$(BarSprtr)$(BarKeyboard)$(BarSprtr)$(BarVolume)$(BarSprtr)$(BarClock)$(BarSprtr)$(BarLogout)"
	sleep 0.5
done | lemonbar -d -a 20 -g $GEOMETRY -n 'lemonbar-top' -u 2 -B $BCKGRND -F $FRGRND -U $UNDRLN -f "$FONT_I" -f "$FONT_II" -p | sh &