From 5be56b2af9eb0134a15cc6eac0cbfad87aa08f94 Mon Sep 17 00:00:00 2001
From: Adithya R <gh0strider.2k18.reborn@gmail.com>
Date: Mon, 15 Mar 2021 16:02:45 +0530
Subject: [PATCH] Settings: Allow disabling refresh rate lowering in battery
 saver

Change-Id: Icc6a25d36f84819402007a99b3f8322510d9da15
Signed-off-by: cjh1249131356 <cjh1249131356@gmail.com>
---
 res/values/evolution_strings.xml              |  3 +
 res/xml/battery_saver_settings.xml            |  7 ++
 ...ySaverRefreshRatePreferenceController.java | 82 +++++++++++++++++++
 3 files changed, 92 insertions(+)
 create mode 100644 src/com/android/settings/fuelgauge/batterysaver/BatterySaverRefreshRatePreferenceController.java

diff --git a/res/values/evolution_strings.xml b/res/values/evolution_strings.xml
index 8a4eb6b7d3a..051c6ee0c59 100644
--- a/res/values/evolution_strings.xml
+++ b/res/values/evolution_strings.xml
@@ -421,6 +421,9 @@
     <string name="screen_refresh_rate_title">Screen refresh rate</string>
     <string name="min_refresh_rate_title">Minimum refresh rate</string>
     <string name="max_refresh_rate_title">Maximum refresh rate</string>
+    <string name="battery_saver_refresh_rate_title">Reduce refresh rate</string>
+    <string name="battery_saver_refresh_rate_summary">Use 60 Hz screen refresh rate to save power when Battery Saver is on</string>
+    <string name="battery_saver_refresh_rate_disabled_summary">Extreme refresh rate is on</string>
 
     <!-- Extreme refresh rate -->
     <string name="extreme_refresh_rate_title">Extreme refresh rate</string>
diff --git a/res/xml/battery_saver_settings.xml b/res/xml/battery_saver_settings.xml
index 74ef85604ba..2b4dc35aea6 100644
--- a/res/xml/battery_saver_settings.xml
+++ b/res/xml/battery_saver_settings.xml
@@ -42,6 +42,13 @@
         settings:keywords="@string/keywords_battery_saver_sticky"
         settings:controller="com.android.settings.fuelgauge.batterysaver.BatterySaverStickyPreferenceController"/>
 
+    <SwitchPreferenceCompat
+        android:order="90"
+        android:key="battery_saver_rr_switch"
+        android:title="@string/battery_saver_refresh_rate_title"
+        android:summary="@string/battery_saver_refresh_rate_summary"
+        settings:controller="com.android.settings.fuelgauge.batterysaver.BatterySaverRefreshRatePreferenceController" />
+
     <com.android.settingslib.widget.FooterPreference
         android:order="100"
         android:key="battery_saver_footer_preference"
diff --git a/src/com/android/settings/fuelgauge/batterysaver/BatterySaverRefreshRatePreferenceController.java b/src/com/android/settings/fuelgauge/batterysaver/BatterySaverRefreshRatePreferenceController.java
new file mode 100644
index 00000000000..a8bc2d4502b
--- /dev/null
+++ b/src/com/android/settings/fuelgauge/batterysaver/BatterySaverRefreshRatePreferenceController.java
@@ -0,0 +1,82 @@
+/*
+ * Copyright (C) 2021 WaveOS
+ * Copyright (C) 2023-2024 Nameless-AOSP
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.android.settings.fuelgauge.batterysaver;
+
+import static android.provider.Settings.Global.LOW_POWER_REFRESH_RATE;
+import static android.provider.Settings.System.EXTREME_REFRESH_RATE;
+
+import android.content.Context;
+import android.os.UserHandle;
+import android.provider.Settings;
+
+import androidx.preference.PreferenceScreen;
+import androidx.preference.SwitchPreferenceCompat;
+
+import com.android.internal.util.evolution.DisplayRefreshRateHelper;
+
+import com.android.settings.R;
+import com.android.settings.core.TogglePreferenceController;
+
+public class BatterySaverRefreshRatePreferenceController extends TogglePreferenceController {
+
+    private final DisplayRefreshRateHelper mHelper;
+
+    private SwitchPreferenceCompat mPreference;
+
+    public BatterySaverRefreshRatePreferenceController(Context context, String key) {
+        super(context, key);
+        mHelper = DisplayRefreshRateHelper.getInstance(context);
+    }
+
+    @Override
+    public void displayPreference(PreferenceScreen screen) {
+        super.displayPreference(screen);
+
+        final boolean extremeRefreshRateEnabled =
+                Settings.System.getIntForUser(mContext.getContentResolver(),
+                EXTREME_REFRESH_RATE, 0, UserHandle.USER_CURRENT) == 1;
+        mPreference = screen.findPreference(getPreferenceKey());
+        mPreference.setSummary(extremeRefreshRateEnabled ?
+                R.string.battery_saver_refresh_rate_disabled_summary :
+                R.string.battery_saver_refresh_rate_summary);
+        mPreference.setEnabled(!extremeRefreshRateEnabled);
+    }
+
+    @Override
+    public boolean isChecked() {
+        return Settings.Global.getInt(mContext.getContentResolver(),
+                LOW_POWER_REFRESH_RATE, 1) == 1;
+    }
+
+    @Override
+    public boolean setChecked(boolean isChecked) {
+        return Settings.Global.putInt(mContext.getContentResolver(),
+                LOW_POWER_REFRESH_RATE, isChecked ? 1 : 0);
+    }
+
+    @Override
+    public int getAvailabilityStatus() {
+        return mHelper.getSupportedRefreshRateList().size() > 1
+                        ? AVAILABLE : UNSUPPORTED_ON_DEVICE;
+    }
+
+    @Override
+    public int getSliceHighlightMenuRes() {
+        return R.string.menu_key_battery;
+    }
+}