From 9433c26d62de6805eabdc8d937176456356b587c Mon Sep 17 00:00:00 2001
From: Joe Groocock <frebib@gmail.com>
Date: Sun, 4 Dec 2016 13:58:25 +0000
Subject: [PATCH] Add backlight control to i3

---
 .config/i3/blocks/backlight | 21 +++++++++++++++++++++
 .config/i3/blocks/battery   |  2 --
 .config/i3/blocks/config    |  5 +++++
 .config/i3/config           |  2 ++
 4 files changed, 28 insertions(+), 2 deletions(-)
 create mode 100755 .config/i3/blocks/backlight

diff --git a/.config/i3/blocks/backlight b/.config/i3/blocks/backlight
new file mode 100755
index 0000000..59f29e8
--- /dev/null
+++ b/.config/i3/blocks/backlight
@@ -0,0 +1,21 @@
+#!/bin/sh
+
+# Set how much you want the brightness to change
+DELTA=2
+
+# Get the current light level, rounded to an integer
+LIGHT=$(printf '%.*f' 0 $(xbacklight -get))
+NEW_LIGHT=$LIGHT
+
+# If called from i3blocks, and scrolling, then change light level
+case $BLOCK_BUTTON in
+	5) NEW_LIGHT=$(expr $LIGHT + $DELTA) ;;
+	4) NEW_LIGHT=$(expr $LIGHT - $DELTA) ;;
+esac
+
+xbacklight -set $NEW_LIGHT -time 0 -steps 1
+
+# Output the new light level
+OUTPUT=$(printf '%.*f%%' 0 $(xbacklight -get))
+echo $OUTPUT
+echo $OUTPUT
diff --git a/.config/i3/blocks/battery b/.config/i3/blocks/battery
index b608375..4bfbf61 100755
--- a/.config/i3/blocks/battery
+++ b/.config/i3/blocks/battery
@@ -75,8 +75,6 @@ switch($ENV{BLOCK_BUTTON} || 0) {
             }
         }
     }
-    case "4" { system("light -U -l 1") }
-    case "5" { system("light -A -l 1") }
 }
 
 
diff --git a/.config/i3/blocks/config b/.config/i3/blocks/config
index 9018e49..0e20c56 100644
--- a/.config/i3/blocks/config
+++ b/.config/i3/blocks/config
@@ -77,6 +77,11 @@ interval=10
 label=
 interval=10
 
+[backlight]
+label=
+interval=30
+signal=12
+
 [separator]
 
 [rotation]
diff --git a/.config/i3/config b/.config/i3/config
index ba09136..b65e628 100644
--- a/.config/i3/config
+++ b/.config/i3/config
@@ -160,6 +160,8 @@ bindsym XF86AudioPause exec --no-startup-id mpc pause
 bindsym XF86AudioStop  exec --no-startup-id mpc stop
 bindsym XF86AudioNext  exec --no-startup-id mpc next
 bindsym XF86AudioPrev  exec --no-startup-id mpc previous
+bindsym XF86MonBrightnessUp  exec xbacklight -inc 5 && pkill -RTMIN+12 i3blocks
+bindsym XF86MonBrightnessDown exec xbacklight -dec 5 && pkill -RTMIN+12 i3blocks
 bindsym XF86AudioRaiseVolume exec --no-startup-id pactl set-sink-volume @DEFAULT_SINK@ +2% && pkill -RTMIN+10 i3blocks
 bindsym XF86AudioLowerVolume exec --no-startup-id pactl set-sink-volume @DEFAULT_SINK@ -2% && pkill -RTMIN+10 i3blocks
 bindsym XF86AudioMute        exec --no-startup-id pactl set-sink-mute   @DEFAULT_SINK@ toggle && pkill -RTMIN+10 i3blocks