From 2f2dbec6025154ea4f5b3f2cddc4a46d21ab2905 Mon Sep 17 00:00:00 2001
From: Simon Rettberg
Date: Thu, 21 Dec 2023 16:28:17 +0100
Subject: [bwlp-desktop-tweaks] New module

For now, locks the xfce4 power management settings, and makes sure the
minimum backlight brightness has a sane value (1%).
---
 .../xfce-perchannel-xml/xfce4-power-manager.xml    | 15 ++++++++++++++
 .../xfce4-adjust-min-brightness.sh                 | 24 ++++++++++++++++++++++
 core/modules/bwlp-desktop-tweaks/module.build      |  2 ++
 core/modules/bwlp-desktop-tweaks/module.conf       |  0
 4 files changed, 41 insertions(+)
 create mode 100644 core/modules/bwlp-desktop-tweaks/data/etc/xdg/xfce4/xfconf/xfce-perchannel-xml/xfce4-power-manager.xml
 create mode 100755 core/modules/bwlp-desktop-tweaks/data/opt/openslx/scripts/systemd-general_system_tweaks.d/xfce4-adjust-min-brightness.sh
 create mode 100644 core/modules/bwlp-desktop-tweaks/module.build
 create mode 100644 core/modules/bwlp-desktop-tweaks/module.conf

diff --git a/core/modules/bwlp-desktop-tweaks/data/etc/xdg/xfce4/xfconf/xfce-perchannel-xml/xfce4-power-manager.xml b/core/modules/bwlp-desktop-tweaks/data/etc/xdg/xfce4/xfconf/xfce-perchannel-xml/xfce4-power-manager.xml
new file mode 100644
index 00000000..63c547f0
--- /dev/null
+++ b/core/modules/bwlp-desktop-tweaks/data/etc/xdg/xfce4/xfconf/xfce-perchannel-xml/xfce4-power-manager.xml
@@ -0,0 +1,15 @@
+<?xml version="1.0" encoding="UTF-8"?>
+
+<channel name="xfce4-power-manager" version="1.0" locked="*" unlocked="root">
+  <property name="xfce4-power-manager" type="empty">
+    <property name="power-button-action" type="uint" value="3"/>
+    <property name="brightness-switch" type="int" value="0"/>
+    <property name="brightness-switch-restore-on-exit" type="int" value="1"/>
+    <property name="brightness-step-count" type="uint" value="15"/>
+    <property name="brightness-slider-min-level" type="int" value="10"/>
+    <property name="handle-brightness-keys" type="bool" value="true"/>
+    <property name="general-notification" type="bool" value="false"/>
+    <property name="show-tray-icon" type="bool" value="true"/>
+    <property name="dpms-enabled" type="bool" value="false"/>
+  </property>
+</channel>
diff --git a/core/modules/bwlp-desktop-tweaks/data/opt/openslx/scripts/systemd-general_system_tweaks.d/xfce4-adjust-min-brightness.sh b/core/modules/bwlp-desktop-tweaks/data/opt/openslx/scripts/systemd-general_system_tweaks.d/xfce4-adjust-min-brightness.sh
new file mode 100755
index 00000000..5852edc9
--- /dev/null
+++ b/core/modules/bwlp-desktop-tweaks/data/opt/openslx/scripts/systemd-general_system_tweaks.d/xfce4-adjust-min-brightness.sh
@@ -0,0 +1,24 @@
+#!/bin/sh
+
+xml="/etc/xdg/xfce4/xfconf/xfce-perchannel-xml/xfce4-power-manager.xml"
+
+[ -s "$xml" ] || exit 0
+
+file="/sys/class/backlight/intel_backlight/max_brightness"
+
+if ! [ -e "$file" ]; then
+	for file in /sys/class/backlight/*/max_brightness; do
+		break
+	done
+fi
+
+[ -e "$file" ] || exit 0
+
+min=$( cat "$file" )
+min=$(( min / 100 ))
+[ "$min" -gt 10 ] || min=10
+
+xmlstarlet ed -u '/channel/property/property[@name="brightness-slider-min-level"]/@value' \
+	-v "$min" "$xml" > "$xml.tmp"
+
+mv -f "$xml.tmp" "$xml"
diff --git a/core/modules/bwlp-desktop-tweaks/module.build b/core/modules/bwlp-desktop-tweaks/module.build
new file mode 100644
index 00000000..05a7907c
--- /dev/null
+++ b/core/modules/bwlp-desktop-tweaks/module.build
@@ -0,0 +1,2 @@
+#!/bin/bash
+
diff --git a/core/modules/bwlp-desktop-tweaks/module.conf b/core/modules/bwlp-desktop-tweaks/module.conf
new file mode 100644
index 00000000..e69de29b
-- 
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