From de246ef27563ab3f6dbbd87f79349fd3242f33e1 Mon Sep 17 00:00:00 2001
From: ktyl <me@ktyl.dev>
Date: Thu, 19 Aug 2021 01:44:32 +0100
Subject: [PATCH] add backlight script and binds

---
 .config/sxhkd/sxhkdrc |  8 ++++++++
 .scripts/backlight    | 22 ++++++++++++++++++++++
 2 files changed, 30 insertions(+)
 create mode 100755 .scripts/backlight

diff --git a/.config/sxhkd/sxhkdrc b/.config/sxhkd/sxhkdrc
index e6f23b2..3076ecc 100644
--- a/.config/sxhkd/sxhkdrc
+++ b/.config/sxhkd/sxhkdrc
@@ -138,6 +138,14 @@ super + {Left,Down,Up,Right}
 super + shift + g
     $SCRIPTS/toggle-gaps
 
+#
+# screen brightness
+#
+XF86MonBrightnessUp
+    $SCRIPTS/backlight +
+
+XF86MonBrightnessDown
+    $SCRIPTS/backlight -
 
 #
 # media keys
diff --git a/.scripts/backlight b/.scripts/backlight
new file mode 100755
index 0000000..cc41740
--- /dev/null
+++ b/.scripts/backlight
@@ -0,0 +1,22 @@
+#!/usr/bin/env bash
+
+step=2
+value=`xbacklight -get`
+
+# double, halve value or bail
+if [ "$1" == "+" ]; then
+    let value*=$step
+elif [ "$1" == "-" ]; then
+    let value/=$step
+else 
+    echo "usage: backlight +, backlight -"
+    exit 1
+fi
+
+# check range
+min=1
+max=100
+[[ $value -lt $min ]] && value=$min
+[[ $value -gt $max ]] && value=$max
+
+xbacklight -set $value -steps 10