Add lemonbar config and block scripts

.config/i3/config

@@ -13,6 +13,7 @@ set $mod2 Mod1
 floating_modifier $mod
 
 # Application startup
+exec_always --no-startup-id "pkill lemonbar.sh; $HOME/.scripts/panel/lemonbar.sh &"
 exec_always --no-startup-id $HOME/.scripts/wm/wallpaper.sh &
 exec --no-startup-id qutebrowser
 exec --no-startup-id urxvt
@@ -54,7 +55,7 @@ client.focused_inactive $bgcolor_inactive   $bgcolor_inactive   $darkwhite  $dar
 client.urgent           $bgcolor_urgent     $bgcolor_urgent     $white      $darkgreen
 
 # Font
-font pango:DejaVu Sans, FontAwesome5Free Solid, FontAwesome5Brands 8
+font pango:DejaVu Sans 8
 
 ##--- Bindings ---##
 
@@ -161,8 +162,8 @@ for_window [class="QtBank"] floating enable
 #--- Function key bindings ---#
 
 # Screen brightness
-bindsym $mod+F3 exec brightnessctl -q s +10% && pkill -RTMIN+2 i3blocks
+bindsym $mod+F3 exec --no-startup-id "brightnessctl -q s +10%; $HOME/.scripts/panel/brightness.sh"
-bindsym $mod+F2 exec brightnessctl -q s 10%- && pkill -RTMIN+2 i3blocks
+bindsym $mod+F2 exec --no-startup-id "brightnessctl -q s 10%-; $HOME/.scripts/panel/brightness.sh"
 
 #--- Arrow key bindings ---#
 
@@ -191,9 +192,9 @@ bindsym --release Shift+Print exec scrot -s -e "mv \$f "$capture # Selection
 bindsym --release $mod+Print  exec scrot -u -e "mv \$f "$capture # Focused window
 
 # Volume
-bindsym XF86AudioRaiseVolume exec --no-startup-id mediacontrol.sh up 5
+bindsym XF86AudioRaiseVolume exec --no-startup-id "mediacontrol.sh up 5; $HOME/.scripts/panel/volume.sh"
-bindsym XF86AudioLowerVolume exec --no-startup-id mediacontrol.sh down 5
+bindsym XF86AudioLowerVolume exec --no-startup-id "mediacontrol.sh down 5; $HOME/.scripts/panel/volume.sh"
-bindsym XF86AudioMute        exec --no-startup-id mediacontrol.sh toggle
+bindsym XF86AudioMute        exec --no-startup-id "mediacontrol.sh toggle; $HOME/.scripts/panel/volume.sh"
 
 # Touchscreen toggle
 bindsym XF86HomePage         exec --no-startup-id touchscreen.sh

.scripts/panel/battery.sh

@@ -0,0 +1,39 @@
+#!/bin/sh
+
+BAT_INFO=${BLOCK_INSTANCE:-"$(acpi -b | grep ': [^Unknown]')"}
+
+CAPACITY=$(echo $BAT_INFO | awk '{ print int($4) }')
+TIME="$(echo $BAT_INFO | awk '{ print substr($5, 0, length($5) - 3) }')"
+CHARACTER=":"
+
+if [ "$TIME" != "" ] && [ "${TIME#*$CHARACTER}" != "$TIME" ]; then
+	TIME=" ($TIME)"
+else
+	TIME=""
+fi
+
+COLOR="-"
+if [ "$(echo $BAT_INFO | awk '{ print $6 }')" = "remaining" ]; then
+	if [ "$CAPACITY" -ge "80" ]; then
+		ICON=""
+	elif [ "$CAPACITY" -ge "60" ]; then
+		ICON=""
+	elif [ "$CAPACITY" -ge "40" ]; then
+		ICON=""
+	elif [ "$CAPACITY" -ge "20" ]; then
+		ICON=""
+	else
+		ICON=""
+		COLOR="$COLOR9"
+
+		notify-send -u critical -r 1 -t 30000 "Battery critically low!"
+	fi
+else
+	if [ "$CAPACITY" -ge "95" ]; then
+		notify-send -u low -r 1 "You should probably unplug."
+	fi
+
+	ICON=""
+fi
+
+printf "%s\n" "battery%{F$COLOR}$ICON $CAPACITY%$TIME%{F-}"

.scripts/panel/brightness.sh

@@ -0,0 +1,23 @@
+#!/bin/sh
+
+# Right click, scroll up, scroll down
+R="A3:brightnessctl -q s 30%; $0:"
+U="A4:brightnessctl -q s +10%; $0:"
+D="A5:brightnessctl -q s 10%-; $0:"
+
+PERCENTAGE=$(brightnessctl \
+	| awk '/\([0-9]+%\)/ { print substr($4, 2, length($4) - 3) }')
+if [ "$PERCENTAGE" -ge "75" ]; then
+	ICON="" # f111
+elif [ "$PERCENTAGE" -ge "25" ]; then
+	ICON="" # f042
+else
+	ICON="" # f1ce
+	# ICON="" # f111
+fi
+
+INPUT="%{$R}%{$U}%{$D}"
+END="%{A}%{A}%{A}"
+PIPE="$($(dirname $0)/lemonbar.sh getpipe)"
+
+printf "%s\n" "brightness$INPUT$ICON $PERCENTAGE%$END" > "$PIPE" &

.scripts/panel/iface.sh

@@ -0,0 +1,15 @@
+#!/bin/sh
+
+ICON=""
+WIRED="${1:-eth0}"
+
+COLOR="-"
+if [ ! -d /sys/class/net/${WIRED} ] ||
+	[ "$(cat /sys/class/net/$WIRED/operstate)" = 'down' ] ||
+	[ "$(ip a | grep $WIRED | awk '/inet / {print $2}')" = "" ]; then
+	COLOR="$COLOR7"
+else
+	COLOR="$COLOR15"
+fi
+
+printf "%s\n" "iface%{F$COLOR}$ICON%{F-}"

.scripts/panel/lemonbar.sh

@@ -0,0 +1,124 @@
+#!/bin/sh
+
+PIPE="/tmp/lemonbar_pipe"
+PANEL="lemonbar_panel"
+
+title() {
+	# Grabs focused window's title
+	ID="$(printf "%s" "$1" | awk '{print $5}')"
+	if [ "$ID" == "0x0" ]; then
+		TITLE=""
+	else
+		TITLE="$(xprop -id "$ID" WM_NAME \
+			| awk '{$1=$2=""; print substr($0, 4, length($0) - 4)}')"
+	fi
+	printf "%s\n" "title$TITLE"
+
+	# Grabs focused window's title
+	# TITLE=$(xdotool getactivewindow getwindowname 2> /dev/null)
+	# printf "%s\n" "title$TITLE"
+}
+
+clock() {
+	# Grabs date in 11:59 A/PM format
+	DATETIME=$(date "+%I:%M %p")
+	printf "%s\n" "clock $DATETIME"
+}
+
+bar() {
+	lemonbar \
+		-a 20 -g x38 -n "$PANEL" \
+		-f "DejaVu Sans-8" \
+		-f "FontAwesome5Free Solid-8" \
+		-f "FontAwesome5Free Regular-8" \
+		-f "FontAwesome5 Brands-8" \
+		-B "$BGCOLOR_INACTIVE" -F "$COLOR15"
+}
+
+start() {
+	# Exit if panel is already running
+	if [ "$(pgrep lemonbar | awk 'END {print FNR}')" -gt "2" ]; then
+		printf "%s\n" "The panel is already running." >&2
+		exit 1
+	fi
+
+	# Trap all subshells
+	trap 'trap - TERM; kill 0' INT TERM QUIT EXIT
+
+	# Create named pipe
+	[ -e "$PIPE" ] && rm "$PIPE"
+	mkfifo "$PIPE"
+
+	# Directory of this script
+	DIR="$(dirname "$0")"
+
+	# Setup workspaces with xprop events
+	xprop -root -spy _NET_CURRENT_DESKTOP | while read -r line; do
+		"$DIR"/workspaces.sh
+	done > "$PIPE" &
+
+	# Setup window title with xprop events
+	xprop -root -spy _NET_ACTIVE_WINDOW | while read -r line; do
+		title "$line"
+	done > "$PIPE" &
+
+	# Setup interrupt blocks
+	"$DIR"/volume.sh
+	"$DIR"/brightness.sh
+
+	# Setup block timers
+	while :; do "$DIR"/wifi.sh;    sleep 10; done > "$PIPE" &
+	while :; do "$DIR"/iface.sh;   sleep 10; done > "$PIPE" &
+	while :; do "$DIR"/battery.sh; sleep 30; done > "$PIPE" &
+	while :; do clock;             sleep 5; done > "$PIPE" &
+
+	while read -r line ; do
+		case $line in
+			workspaces*)
+				workspaces=${line#workspaces}
+				;;
+			title*)
+				title=${line#title}
+				;;
+			volume*)
+				volume=${line#volume}
+				;;
+			brightness*)
+				brightness=${line#brightness}
+				;;
+			wifi*)
+				wifi=${line#wifi}
+				;;
+			iface*)
+				iface=${line#iface}
+				;;
+			battery*)
+				battery=${line#battery}
+				;;
+			clock*)
+				clock=${line#clock}
+				;;
+		esac
+		printf "%s\n" "%{l}$workspaces%{c}$title%{r}$volume   $brightness   $wifi   $iface   $battery   $clock "
+	done < "$PIPE" | bar | sh
+
+	wait
+}
+
+getpipe() {
+	printf "%s" "$PIPE"
+}
+
+if type "$1" 2> /dev/null | grep -q "function"; then
+	"$@"
+else
+	start
+fi
+
+#@Todo:
+# v lemonbar.sh get_pipe() {}
+# v implement in workspaces
+# v rewrite workspaces getter
+#
+# v pipes in volume en brightness widget
+# - i3 bindings

.scripts/panel/volume.sh

@@ -0,0 +1,35 @@
+#!/bin/sh
+
+MEDIACONTROL="$HOME/.scripts/mediacontrol.sh"
+
+# Left click, scroll click, right click, scroll up and scroll down
+L="A1:pavucontrol:"
+S="A2:$MEDIACONTROL set 0; $0:"
+R="A3:$MEDIACONTROL toggle; $0:"
+U="A4:$MEDIACONTROL up 5; $0:"
+D="A5:$MEDIACONTROL down 5; $0:"
+
+VOLUME="$($MEDIACONTROL getvolume)"
+
+COLOR="-"
+if [ "$($MEDIACONTROL getmute)" = "1" ]; then
+	COLOR="$COLOR7"
+
+	SYMBOL=""
+else
+	COLOR="$COLOR15"
+
+	if [ "$VOLUME" -ge "50" ]; then
+		SYMBOL=""
+	elif [ "$VOLUME" -ge "25" ]; then
+		SYMBOL=""
+	else
+		SYMBOL=""
+	fi
+fi
+
+INPUT="%{$L}%{$S}%{$R}%{$U}%{$D}"
+END="%{A}%{A}%{A}%{A}%{A}"
+PIPE="$($(dirname $0)/lemonbar.sh getpipe)"
+
+printf "%s\n" "volume%{F$COLOR}$INPUT$SYMBOL $VOLUME%$END%{F-}" > "$PIPE" &

.scripts/panel/wifi.sh

@@ -0,0 +1,31 @@
+#!/bin/sh
+
+ICON=""
+WIRELESS="${1:-wlan0}"
+
+if [ "$NOTIFY" = "1" ]; then
+	SSID="$(iw dev $WIRELESS link | awk '/SSID/ { print $2 }')"
+	IP="$(ip a show $WIRELESS \
+		| awk '/inet / { print substr($2, 0, length($2) - 3) }')"
+
+	notify-send -r 3 "Wifi" "\
+Interface: $WIRELESS
+SSID:      $SSID
+IP:        $IP"
+else
+	COLOR="-"
+	if [ ! -d /sys/class/net/${WIRELESS}/wireless ] ||
+		[ "$(cat /sys/class/net/$WIRELESS/operstate)" = 'down' ]; then
+
+		COLOR="$COLOR7"
+		DISPLAY="$ICON"
+	else
+		QUALITY=$(grep $WIRELESS /proc/net/wireless | \
+			awk '{ print int($3 * 100 / 70) }')
+
+		COLOR="$COLOR15"
+		DISPLAY="$ICON $QUALITY%"
+	fi
+
+	printf "%s\n" "wifi%{F$COLOR}%{A:NOTIFY=1 $0:}$DISPLAY%{A}%{F-}"
+fi

.scripts/panel/workspaces.sh

@@ -0,0 +1,29 @@
+#!/bin/sh
+
+# Suppress output
+NULL="> /dev/null 2>&1"
+
+# Scroll up, scroll down
+U="A4:i3-msg workspace prev_on_output $NULL:"
+D="A5:i3-msg workspace next_on_output $NULL:"
+
+# i3
+# WMNAME="$(xprop -root '\t$0' _NET_WM_NAME | cut -f 2 | tr -d '"')"
+
+CURRENT=$(xprop -root _NET_CURRENT_DESKTOP | awk '{print $3 + 1}')
+WORKSPACES="$(xprop -root '\n$0\n$1\n$2\n$3\n$4\n$5\n$6\n$7\n$8\n$9' _NET_DESKTOP_NAMES \
+	| awk -v c="$CURRENT" -v n="$NULL" \
+	      -v c7="$COLOR7" -v c15="$COLOR15" -v b="$BGCOLOR" -v bi="$BGCOLOR_INACTIVE" '
+	/".*"/ {
+		name = substr($0, 2, length($0) - 2);
+
+		if (c == FNR - 1)
+			printf "%{B%s}  %s  %{B%s}",
+			b, name, bi
+		else
+			printf "%{F%s}%{A:i3-msg workspace %s %s:}  %s  %{A}%{F%s}",
+			c7, name, n, name, c15
+	}
+')"
+
+printf "%s\n" "workspaces%{$U}%{$D}$WORKSPACES%{A}%{A}"

packages

@@ -48,6 +48,7 @@ jdk10-openjdk
 jq
 kdenlive
 krita
+lemonbar-xft-git
 libmtp
 libnotify-id
 libva-intel-driver