volumeControl.sh refctored and added brightness control functionality which supersedes brightnessControl.sh

i3/.config/i3/config

@@ -199,17 +199,14 @@ bindsym XF86ScreenSaver exec "dm-tool lock"
 bindsym Print --release exec "screenshot_image=$(date +%F_%T).png && deepin-screenshot --no-notification -s /tmp/$screenshot_image && xclip -selection c -t image/png < /tmp/$screenshot_image  && rm /tmp/$screenshot_image && unset screenshot_image"
 
 # Speakers and Mic Controls
-bindsym XF86AudioRaiseVolume exec --no-startup-id ~/.config/i3/scripts/volumeControl.sh up
-bindsym XF86AudioLowerVolume exec --no-startup-id ~/.config/i3/scripts/volumeControl.sh down
-bindsym XF86AudioMute exec --no-startup-id ~/.config/i3/scripts/volumeControl.sh mute
-bindsym XF86AudioMicMute exec --no-startup-id ~/.config/i3/scripts/volumeControl.sh mic
+bindsym XF86AudioRaiseVolume exec --no-startup-id ~/.config/i3/scripts/volumeControl.sh audio up
+bindsym XF86AudioLowerVolume exec --no-startup-id ~/.config/i3/scripts/volumeControl.sh audio down
+bindsym XF86AudioMute exec --no-startup-id ~/.config/i3/scripts/volumeControl.sh audio mute
+bindsym XF86AudioMicMute exec --no-startup-id ~/.config/i3/scripts/volumeControl.sh mic mute
 
 # Screen brightness controls
-##bindsym XF86MonBrightnessUp exec "xbacklight -inc 10"
-##bindsym XF86MonBrightnessDown exec "xbacklight -dec 10"
-
-bindsym XF86MonBrightnessUp exec --no-startup-id ~/.config/i3/scripts/brightnessControl.sh up
-bindsym XF86MonBrightnessDown exec --no-startup-id ~/.config/i3/scripts/brightnessControl.sh down
+bindsym XF86MonBrightnessUp exec --no-startup-id ~/.config/i3/scripts/volumeControl.sh brightness up
+bindsym XF86MonBrightnessDown exec --no-startup-id ~/.config/i3/scripts/volumeControl.sh brightness down
 
 # Turn screen off
 bindsym XF86Launch1 exec --no-startup-id xset dpms force off

i3/.config/i3/scripts/brightnessControl.sh

@@ -1,81 +0,0 @@
-#!/usr/bin/env bash
-
-# You can call this script like this:
-# $ ./brightnessControl.sh up
-# $ ./brightnessControl.sh down
-
-# Script inspired by these wonderful people:
-# https://github.com/dastorm/volume-notification-dunst/blob/master/volume.sh
-# https://gist.github.com/sebastiencs/5d7227f388d93374cebdf72e783fbd6a
-
-function get_brightness {
-  #xbacklight -get | cut -d '.' -f 1 # This seems to no longer work on Intel graphics
-  max_bright=$(cat /sys/class/backlight/intel_backlight/max_brightness)
-  act_bright=$(cat /sys/class/backlight/intel_backlight/actual_brightness)
-  # To round down/up/nearest in sh: https://stackoverflow.com/a/2395294
-  # In this case we round to the nearest: (num + (denom / 2)) / denom
-  echo $(( (act_bright*100+(max_bright/2))/max_bright ))
-}
-
-function draw_bar {
-  percentual=$1
-  slices=$2
-  lvl=$((percentual / slices))
-  empty=$(((100 / slices) - lvl))
-  lvl_bar=""
-  for X in $(seq "$lvl"); do
-    lvl_bar="$lvl_bar$(printf '\u2588')"
-  done
-  empty_bar=""
-  for X in $(seq "$empty"); do
-    empty_bar="$empty_bar$(printf '\u2591')"
-  done
-  echo "$lvl_bar$empty_bar"
-}
-
-function send_notification {
-  if [ ! -d "/sys/class/backlight/intel_backlight/" ]; then
-    notif_icon="display-brightness-disabled-dark"
-    notif_text="Disabled"
-  else
-    brightness=$(get_brightness)
-    if [ $brightness -le 0 ] ; then
-      notif_icon="display-brightness-none-dark"
-    else
-      if [ $brightness -le 30 ] ; then
-        notif_icon="display-brightness-low-dark"
-      else
-        if [ $brightness -le 85 ] ; then
-          notif_icon="display-brightness-medium-dark"
-        else
-          if [ $brightness -le 100 ] ; then
-            notif_icon="display-brightness-high-dark"
-          else
-            notif_icon="display-brightness-overamplified-dark"
-          fi
-        fi
-      fi
-    fi
-    notif_text=$(draw_bar $brightness 5)
-  fi
-  # Send the notification
-  dunstify -i "$notif_icon" -r 5555 -u normal "$notif_text"
-}
-
-case $1 in
-  up)
-    # increase the backlight by 5%
-    ##xbacklight -inc 5
-    brightnessctl s +5%
-    send_notification
-    ;;
-  down)
-    # decrease the backlight by 5%
-    ##xbacklight -dec 5
-    brightnessctl s 5%-
-    send_notification
-    ;;
-esac
-
-# Note: Seems that `xbacklight` doesn't work without a proper DE under i3.
-# `brightnessctl` seems an interesting alternative. :)

i3/.config/i3/scripts/volumeControl.sh

@@ -1,12 +1,14 @@
 #!/bin/sh
 
 # You can call this script like this:
-# $ ./volumeControl.sh up
-# $ ./volumeControl.sh down
-# $ ./volumeControl.sh mute
-# $ ./volumeControl.sh mic
+# $ ./volumeControl.sh audio up
+# $ ./volumeControl.sh audio down
+# $ ./volumeControl.sh audio mute
+# $ ./volumeControl.sh mic mute
+# $ ./volumeControl.sh brightness up
+# $ ./volumeControl.sh brightness down
 
-# Script modified from these wonderful people:
+# Acknowledgements:
 # https://github.com/dastorm/volume-notification-dunst/blob/master/volume.sh
 # https://gist.github.com/sebastiencs/5d7227f388d93374cebdf72e783fbd6a
 
@@ -22,6 +24,26 @@ is_mic_mute() {
   amixer get Capture | grep '%' | grep -oE '[^ ]+$' | grep off > /dev/null
 }
 
+get_brightness() {
+  max_bright=$(cat /sys/class/backlight/intel_backlight/max_brightness)
+  act_bright=$(cat /sys/class/backlight/intel_backlight/actual_brightness)
+  echo $(( (act_bright*100+(max_bright/2))/max_bright ))
+}
+
+get_level_icon() {
+  if [ "$1" -le 0 ] ; then
+    printf %s "$2-none-dark"
+  elif [ "$1" -le 30 ] ; then
+    printf %s "$2-low-dark"
+  elif [ "$1" -le 85 ] ; then
+    printf %s "$2-medium-dark"
+  elif [ "$1" -le 100 ] ; then
+    printf %s "$2-high-dark"
+  else
+    printf %s "$2-overamplified-dark"
+  fi
+}
+
 draw_bar() {
   percentual=$1
   slices=$2
@@ -48,21 +70,11 @@ send_notification() {
       notif_icon="audio-volume-muted-dark"
       notif_text="Audio Muted"
     else
-      volume=$(get_volume)
-      if [ "$volume" -le 0 ] ; then
-        notif_icon="audio-volume-none-dark"
-      elif [ "$volume" -le 30 ] ; then
-        notif_icon="audio-volume-low-dark"
-      elif [ "$volume" -le 85 ] ; then
-        notif_icon="audio-volume-medium-dark"
-      elif [ "$volume" -le 100 ] ; then
-        notif_icon="audio-volume-high-dark"
-      else
-        notif_icon="audio-volume-overamplified-dark"
-      fi
-      notif_text="$(draw_bar "$volume" 5)"
+      level=$(get_volume)
+      notif_icon=$(get_level_icon "$level" "audio-volume")
+      notif_text="$(draw_bar "$level" 5)"
     fi
-  else
+  elif [ "$1" = "mic" ]; then
     replace_id=2594
     if is_mic_mute ; then
       notif_icon="microphone-sensitivity-muted"
@@ -71,32 +83,84 @@ send_notification() {
       notif_icon="microphone-sensitivity-high"
       notif_text="Microphone On"
     fi
+  elif [ "$1" = "brightness" ] ; then
+    replace_id=2595
+    if [ ! -d "/sys/class/backlight/intel_backlight/" ]; then
+      notif_icon="display-brightness-disabled-dark"
+      notif_text="Backlight Disabled"
+    else
+      level="$(get_brightness)"
+      notif_icon=$(get_level_icon "$level" "display-brightness")
+      notif_text="$(draw_bar "$level" 5)"
+    fi
+  else
+    replace_id=2590
+    notif_icon="dialog-error"
+    notif_text="Script-error: option not found"
   fi
   # Send the notification
   dunstify -i $notif_icon -r $replace_id -u normal "$notif_text"
 }
 
+# set the volume on (if it was muted)
+# and then up/down the volume of the 5%
+set_audio() {
+  case $1 in
+    up)
+      amixer -D pulse set Master on > /dev/null
+      amixer -D pulse sset Master 5%+ > /dev/null
+      send_notification audio
+      ;;
+    down)
+      amixer -D pulse set Master on > /dev/null
+      amixer -D pulse sset Master 5%- > /dev/null
+      send_notification audio
+      ;;
+    mute)
+      # toggle mute
+      amixer -D pulse set Master 1+ toggle > /dev/null
+      send_notification audio
+      ;;
+    mic)
+      # toggle microphone mute
+      amixer -D pulse set Capture toggle > /dev/null
+      send_notification mic
+      ;;
+  esac
+}
+
+# increase/decrease the backlight by 5%
+set_brightness() {
+  case $1 in
+    up)
+      brightnessctl s +5%
+      send_notification brightness
+      ;;
+    down)
+      brightnessctl s 5%-
+      send_notification brightness
+      ;;
+  esac
+}
+
+set_mic() {
+  case $1 in
+    mute)
+      # toggle microphone mute
+      amixer -D pulse set Capture toggle > /dev/null
+      send_notification mic
+      ;;
+  esac
+}
+
 case $1 in
-  up)
-    # set the volume on (if it was muted)
-    # and then up/down the volume of the 5%
-    amixer -D pulse set Master on > /dev/null
-    amixer -D pulse sset Master 5%+ > /dev/null
-    send_notification audio
-    ;;
-  down)
-    amixer -D pulse set Master on > /dev/null
-    amixer -D pulse sset Master 5%- > /dev/null
-    send_notification audio
+  audio)
+    set_audio "$2"
     ;;
-  mute)
-    # toggle mute
-    amixer -D pulse set Master 1+ toggle > /dev/null
-    send_notification audio
+  brightness)
+    set_brightness "$2"
     ;;
   mic)
-    # toggle microphone mute
-    amixer -D pulse set Capture toggle > /dev/null
-    send_notification mic
+    set_mic "$2"
     ;;
 esac