From 0640b1aa050f80bc8b095e2d78a134402fb0c0de Mon Sep 17 00:00:00 2001
From: Andy CrossGate Yan <GeForce8800Ultra@gmail.com>
Date: Sat, 17 Dec 2022 10:29:05 +0000
Subject: [PATCH 6/9] TrebleSettings: Override minimum brightness

Change-Id: I6d621f7dd04b675b6e2e851a5e474dc9a9841eb0
---
 res/values/strings.xml                        |  2 +
 res/xml/treble_settings.xml                   |  4 ++
 ...MinimumBrightnessPreferenceController.java | 53 +++++++++++++++++++
 .../settings/treble/TrebleSettings.java       |  1 +
 4 files changed, 60 insertions(+)
 create mode 100644 src/com/android/settings/treble/OverrideMinimumBrightnessPreferenceController.java

diff --git a/res/values/strings.xml b/res/values/strings.xml
index 08b953b9ccf..2dd1ddeb5a8 100644
--- a/res/values/strings.xml
+++ b/res/values/strings.xml
@@ -7368,6 +7368,8 @@
     <string name="screen_resolution_refresh_rate_title">Screen resolution &amp; refresh rate</string>
     <!-- Treble settings screen, use alternative backlight scale title -->
     <string name="use_alternative_backlight_scale_title">Use alternative backlight scale</string>
+    <!-- Treble settings screen, override minimum brightness title -->
+    <string name="override_minimum_brightness_title">Override minimum brightness</string>
     <!-- Treble settings screen, install IMS APK title -->
     <string name="install_ims_apk_title">Install IMS APK</string>
     <!-- Treble settings screen, install IMS APK toasts -->
diff --git a/res/xml/treble_settings.xml b/res/xml/treble_settings.xml
index 47097a14c70..5c18461b69f 100644
--- a/res/xml/treble_settings.xml
+++ b/res/xml/treble_settings.xml
@@ -38,6 +38,10 @@
             android:key="use_alternative_backlight_scale"
             android:title="@string/use_alternative_backlight_scale_title" />
 
+        <SwitchPreference
+            android:key="override_minimum_brightness"
+            android:title="@string/override_minimum_brightness_title" />
+
     </PreferenceCategory>
 
     <PreferenceCategory
diff --git a/src/com/android/settings/treble/OverrideMinimumBrightnessPreferenceController.java b/src/com/android/settings/treble/OverrideMinimumBrightnessPreferenceController.java
new file mode 100644
index 00000000000..95200fbeaac
--- /dev/null
+++ b/src/com/android/settings/treble/OverrideMinimumBrightnessPreferenceController.java
@@ -0,0 +1,53 @@
+package com.android.settings.treble;
+
+import android.content.Context;
+import android.os.SystemProperties;
+
+import androidx.preference.Preference;
+import androidx.preference.PreferenceScreen;
+import androidx.preference.SwitchPreference;
+
+import com.android.settings.core.BasePreferenceController;
+
+public class OverrideMinimumBrightnessPreferenceController extends BasePreferenceController
+        implements Preference.OnPreferenceChangeListener {
+
+    private static final String OVERRIDE_MINIMUM_BRIGHTNESS_KEY = "override_minimum_brightness";
+    private static final String MINIMAL_BRIGHTNESS_PROPERTY = "persist.sys.overlay.minimal_brightness";
+
+    private SwitchPreference mSwitchPreference;
+
+    public OverrideMinimumBrightnessPreferenceController(Context context) {
+        super(context, OVERRIDE_MINIMUM_BRIGHTNESS_KEY);
+    }
+
+    @Override
+    public int getAvailabilityStatus() {
+        return AVAILABLE;
+    }
+
+    @Override
+    public String getPreferenceKey() {
+        return OVERRIDE_MINIMUM_BRIGHTNESS_KEY;
+    }
+
+    @Override
+    public void displayPreference(PreferenceScreen screen) {
+        mSwitchPreference = screen.findPreference(getPreferenceKey());
+        super.displayPreference(screen);
+    }
+
+    @Override
+    public void updateState(Preference preference) {
+        boolean checked = SystemProperties.getBoolean(MINIMAL_BRIGHTNESS_PROPERTY, false);
+        mSwitchPreference.setChecked(checked);
+    }
+
+    @Override
+    public boolean onPreferenceChange(Preference preference, Object newValue) {
+        SystemProperties.set(MINIMAL_BRIGHTNESS_PROPERTY, String.valueOf((boolean) newValue));
+        mSwitchPreference.setChecked((boolean) newValue);
+        return true;
+    }
+
+}
diff --git a/src/com/android/settings/treble/TrebleSettings.java b/src/com/android/settings/treble/TrebleSettings.java
index 09aa001e82c..39a0e199726 100644
--- a/src/com/android/settings/treble/TrebleSettings.java
+++ b/src/com/android/settings/treble/TrebleSettings.java
@@ -38,6 +38,7 @@ public class TrebleSettings extends DashboardFragment {
         controllers.add(new UseAlternativeAudioJackDetectionPreferenceController(context));
         controllers.add(new ScreenResolutionRefreshRatePreferenceController(context));
         controllers.add(new UseAlternativeBacklightScalePreferenceController(context));
+        controllers.add(new OverrideMinimumBrightnessPreferenceController(context));
         controllers.add(new InstallImsApkPreferenceController(context));
         controllers.add(new OverrideVolteAvailabilityPreferenceController(context));
         return controllers;
-- 
2.34.1