Backlight animation

hyprland/.config/hypr/bind-framework.conf

@@ -1,7 +1,7 @@
 # Screen brightness controls
 exec-once = light -N 1
-bind = ,XF86MonBrightnessUp, exec, light -A 5 # increase screen brightness
+bind = ,XF86MonBrightnessUp, exec, ~/bin/system/backlight-ctl.sh -i
-bind = ,XF86MonBrightnessDown, exec, light -U 5 # decrease screen brightness
+bind = ,XF86MonBrightnessDown, exec, ~/bin/system/backlight-ctl.sh -d
 
 # Pulse Audio controls
 bind = ,XF86AudioRaiseVolume, exec, amixer set Master 3%+ #increase sound volume

scripts/bin/system/backlight-ctl.sh

@@ -0,0 +1,52 @@
+#!/usr/bin/env bash
+
+# Print help info.
+function print_help() {
+  echo 'Control the backlight brightness with animation.'
+  echo
+  echo '-i    -- increase brightness'
+  echo '-d    -- decrease brightness'
+}
+
+# Increase backlight brightness.
+function increase() {
+  run_animation 'light -A 0.1'
+}
+
+# Decrease backlight brightness.
+function decrease() {
+  run_animation 'light -U 0.1'
+}
+
+# Run animation task.
+function run_animation() {
+  local cmd="${1}"
+  i=0
+  while [ $i -lt 50 ]; do
+    ${cmd}
+    sleep 0.01
+    ((i = i + 1));
+  done
+}
+
+
+# Check arguments
+for i in "$@"; do
+  case $i in
+    -h|--help)
+      print_help
+      exit 0
+      ;;
+    -i)
+      increase
+      ;;
+    -d)
+      decrease
+      ;;
+    *)
+      print_help
+      exit 1
+      ;;
+  esac
+done
+