"initial" commit :D

panel.sh

@@ -0,0 +1,162 @@
+#!/bin/bash
+
+source ~/.config/herbstluftwm/settings.sh
+
+# disable path name expansion or * will be expanded in the line
+# cmd=( $line )
+set -f
+
+monitor=${1:-0}
+monGeomitry=( $(herbstclient monitor_rect "$monitor") )
+if [ -z "$monGeomitry" ] ;then
+    echo "Invalid monitor $monitor"
+    exit 1
+fi
+
+# monGeomitry has the format: WxH+X+Y
+x=${monGeomitry[0]}
+y=${monGeomitry[1]}
+panel_width=$((${monGeomitry[2]}))
+panel_height=20
+
+# reserve space for tray on first monitor
+if [ $monitor -eq 0 ] ; then
+    panel_width=$(($panel_width - 100))
+fi
+
+panelGeometry=${panel_width}x${panel_height}+${x}+${y}
+
+textellipsis() {
+    awk -v len=100 '{ if (length($0) > len) print substr($0, 1, len-3) "..."; else print; }'
+}
+
+volume() {
+    LEVEL=$(amixer get Master | tail -1 | sed 's/.*\[\([0-9]*\)%\].*/\1/')
+    if [ "$LEVEL" -gt "49" ] ; then
+        echo -en '\uf028';
+    elif [ "$LEVEL" -gt "0" ] ; then
+        echo -en '\uf027';
+    else
+        echo -en '\uf026';
+    fi
+    echo " ${LEVEL}%"
+}
+
+# events
+{
+    # now playing
+    mpc idleloop player | cat &
+    mpc_pid=$!
+
+    # volume
+    while true ; do
+        echo -e "vol " $(volume)
+	sleep 1 || break
+    done > >(uniq_linebuffered) &
+    vol_pid=$!
+
+    # date
+    while true ; do
+        date +'date_min %Y-%m-%d %H:%M'
+        sleep 1 || break
+    done > >(uniq_linebuffered) &
+    date_pid=$!
+
+    # herbstluftwm
+    herbstclient --idle
+
+    # exiting; kill stray event-emitting processes
+    kill $mpc_pid $vol_pid $date_pid
+} 2> /dev/null | {
+    TAGS=( $(herbstclient tag_status $monitor) )
+    unset TAGS[${#TAGS[@]}]
+    time=""
+    song=""
+    windowtitle=""
+    visible=true
+
+    while true ; do
+        echo -n "%{l}%{F-}"
+        for i in "${TAGS[@]}" ; do
+            case ${i:0:1} in
+                '#') # current tag
+                    echo -n "%{U$active}%{+u}"
+                    ;;
+                '+') # active on other monitor
+                    echo -n "%{U$activeOnMontior}%{+u}"
+                    ;;
+                ':')
+                    echo -n "%{F$notempty}"
+                    ;;
+                '!') # urgent tag
+                    echo -n "%{U$urgent}%{+u}"
+                    ;;
+                *)
+                    echo -n "%{F$notused}"
+                    ;;
+            esac
+            echo -n "%{A:select_tag ${i:1}:}"
+            echo -n " ${i:1} "
+            echo -n "%{A}"
+            echo -n "%{-u}%{F-}%{B-}"
+        done
+
+        # center window title
+        echo -n "%{c}$(echo ${windowtitle//^/^^} | textellipsis) "
+
+        # align right
+        echo -n "%{r}"
+        if [ -n "$song" ] ; then
+            echo -n "$song" "$song2"
+        fi
+        echo -en " $volume "
+        echo -en "\uf133 $date"
+        echo " "
+
+        # wait for next event
+        read line || break
+        cmd=( $line )
+        # find out event origin
+        case "${cmd[0]}" in
+            tag*)
+                TAGS=( $(herbstclient tag_status $monitor) )
+                unset TAGS[${#TAGS[@]}]
+                ;;
+            mpd_player|player)
+                song="$(mpc -f %artist% current)"
+		        song2="$(mpc -f %title% current)"
+                ;;
+            vol)
+                volume="${cmd[@]:1}"
+                ;;
+            date_min)
+                date="${cmd[@]:1}"
+                ;;
+	        focus_changed|window_title_changed)
+                windowtitle="${cmd[@]:2}"
+                ;;
+            quit_panel)
+                exit
+                ;;
+            reload)
+                exit
+                ;;
+        esac
+    done
+} 2> /dev/null \
+    | lemonbar \
+        -g $panelGeometry \
+        -f "$font" \
+        -B "$bgcolor" -F "$fgcolor" \
+        -u 2 \
+    | while read line; do
+        set $line
+        case "$1" in
+            select_tag )
+                # make sure the current monitor is focused
+                herbstclient focus_monitor $monitor
+                herbstclient use $2
+                ;;
+        esac
+    done
+