Add controller for battery saver button

Bug: 72228477 Test: RunSettingsRoboTests Change-Id: Iae9096a10553ea761d099e1e72c1de56b693bac0
2018-01-24 19:42:42 -08:00
parent 1dd690198f
commit 92757b2454
14 changed files with 526 additions and 19 deletions
--- a/src/com/android/settings/fuelgauge/batterysaver/BatterySaverButtonPreferenceController.java
+++ b/src/com/android/settings/fuelgauge/batterysaver/BatterySaverButtonPreferenceController.java
@@ -0,0 +1,85 @@
+/*
+ * Copyright (C) 2018 The Android Open Source Project
+ *
+ * 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 android.content.Context;
+import android.os.PowerManager;
+import android.support.annotation.VisibleForTesting;
+import android.support.v7.preference.Preference;
+
+import com.android.settings.fuelgauge.BatteryBroadcastReceiver;
+import com.android.settings.widget.TwoStateButtonPreferenceController;
+import com.android.settingslib.core.lifecycle.Lifecycle;
+import com.android.settingslib.core.lifecycle.LifecycleObserver;
+import com.android.settingslib.core.lifecycle.events.OnStart;
+import com.android.settingslib.core.lifecycle.events.OnStop;
+
+/**
+ * Controller to update the battery saver button
+ */
+//TODO(b/72228477): disable the button if device is charging.
+public class BatterySaverButtonPreferenceController extends
+        TwoStateButtonPreferenceController implements
+        LifecycleObserver, OnStart, OnStop, BatteryBroadcastReceiver.OnBatteryChangedListener {
+    private static final String KEY = "battery_saver_button_container";
+    private BatteryBroadcastReceiver mBatteryBroadcastReceiver;
+    @VisibleForTesting
+    PowerManager mPowerManager;
+
+    public BatterySaverButtonPreferenceController(Context context, Lifecycle lifecycle) {
+        super(context, KEY);
+        mPowerManager = (PowerManager) context.getSystemService(Context.POWER_SERVICE);
+        mBatteryBroadcastReceiver = new BatteryBroadcastReceiver(context);
+        mBatteryBroadcastReceiver.setBatteryChangedListener(this);
+        if (lifecycle != null) {
+            lifecycle.addObserver(this);
+        }
+    }
+
+    @Override
+    public void onStart() {
+        mBatteryBroadcastReceiver.register();
+    }
+
+    @Override
+    public void onStop() {
+        mBatteryBroadcastReceiver.unRegister();
+    }
+
+    @Override
+    public void updateState(Preference preference) {
+        super.updateState(preference);
+        final boolean lowPowerModeOn = mPowerManager.isPowerSaveMode();
+        updateButton(!lowPowerModeOn);
+    }
+
+    @Override
+    public int getAvailabilityStatus() {
+        return AVAILABLE;
+    }
+
+    @Override
+    public void onBatteryChanged() {
+        final boolean lowPowerModeOn = mPowerManager.isPowerSaveMode();
+        updateButton(!lowPowerModeOn);
+    }
+
+    @Override
+    public void onButtonClicked(boolean stateOn) {
+        mPowerManager.setPowerSaveMode(stateOn);
+    }
+}