Revert "Remove battery saver condition."

This reverts commit 44b28f4a2b.
Bug: 121115306
Test: robotests

Reason for revert: Change of design

Change-Id: Ia2b9131595d582fd8300367f729fde2b3de81b6e

src/com/android/settings/homepage/contextualcards/conditional/BatterySaverConditionController.java

@@ -0,0 +1,108 @@
+/*
+ * 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.homepage.contextualcards.conditional;
+
+import android.content.Context;
+import android.os.PowerManager;
+
+import com.android.internal.logging.nano.MetricsProto;
+import com.android.settings.R;
+import com.android.settings.core.SubSettingLauncher;
+import com.android.settings.fuelgauge.BatterySaverReceiver;
+import com.android.settings.fuelgauge.batterysaver.BatterySaverSettings;
+import com.android.settings.homepage.contextualcards.ContextualCard;
+import com.android.settingslib.fuelgauge.BatterySaverUtils;
+
+import java.util.Objects;
+
+public class BatterySaverConditionController implements ConditionalCardController,
+        BatterySaverReceiver.BatterySaverListener {
+    static final int ID = Objects.hash("BatterySaverConditionController");
+
+    private final Context mAppContext;
+    private final ConditionManager mConditionManager;
+    private final BatterySaverReceiver mReceiver;
+    private final PowerManager mPowerManager;
+
+    public BatterySaverConditionController(Context appContext, ConditionManager conditionManager) {
+        mAppContext = appContext;
+        mConditionManager = conditionManager;
+        mPowerManager = appContext.getSystemService(PowerManager.class);
+        mReceiver = new BatterySaverReceiver(appContext);
+        mReceiver.setBatterySaverListener(this);
+    }
+
+    @Override
+    public long getId() {
+        return ID;
+    }
+
+    @Override
+    public boolean isDisplayable() {
+        return mPowerManager.isPowerSaveMode();
+    }
+
+    @Override
+    public void onPrimaryClick(Context context) {
+        new SubSettingLauncher(context)
+                .setDestination(BatterySaverSettings.class.getName())
+                .setSourceMetricsCategory(MetricsProto.MetricsEvent.DASHBOARD_SUMMARY)
+                .setTitleRes(R.string.battery_saver)
+                .launch();
+    }
+
+    @Override
+    public void onActionClick() {
+        BatterySaverUtils.setPowerSaveMode(mAppContext, false,
+                /*needFirstTimeWarning*/ false);
+    }
+
+    @Override
+    public ContextualCard buildContextualCard() {
+        return new ConditionalContextualCard.Builder()
+                .setConditionId(ID)
+                .setMetricsConstant(MetricsProto.MetricsEvent.SETTINGS_CONDITION_BATTERY_SAVER)
+                .setActionText(mAppContext.getText(R.string.condition_turn_off))
+                .setName(mAppContext.getPackageName() + "/"
+                        + mAppContext.getText(R.string.condition_battery_title))
+                .setTitleText(mAppContext.getText(R.string.condition_battery_title).toString())
+                .setSummaryText(mAppContext.getText(R.string.condition_battery_summary).toString())
+                .setIconDrawable(mAppContext.getDrawable(R.drawable.ic_battery_saver_accent_24dp))
+                .setIsHalfWidth(true)
+                .build();
+    }
+
+    @Override
+    public void startMonitoringStateChange() {
+        mReceiver.setListening(true);
+    }
+
+    @Override
+    public void stopMonitoringStateChange() {
+        mReceiver.setListening(false);
+    }
+
+    @Override
+    public void onPowerSaveModeChanged() {
+        mConditionManager.onConditionChanged();
+    }
+
+    @Override
+    public void onBatteryChanged(boolean pluggedIn) {
+
+    }
+}

src/com/android/settings/homepage/contextualcards/conditional/ConditionManager.java

@@ -154,6 +154,7 @@ public class ConditionManager {
         mCardControllers.add(new AirplaneModeConditionController(mAppContext, this /* manager */));
         mCardControllers.add(
                 new BackgroundDataConditionController(mAppContext, this /* manager */));
+        mCardControllers.add(new BatterySaverConditionController(mAppContext, this /* manager */));
         mCardControllers.add(new CellularDataConditionController(mAppContext, this /* manager */));
         mCardControllers.add(new DndConditionCardController(mAppContext, this /* manager */));
         mCardControllers.add(new HotspotConditionController(mAppContext, this /* manager */));

src/com/android/settings/homepage/contextualcards/deviceinfo/BatteryInfoSlice.java

@@ -42,15 +42,15 @@ import com.android.settings.slices.SliceBuilderUtils;
 /**
  * Utility class to build a Battery Slice, and handle all associated actions.
  */
-public class BatterySlice implements CustomSliceable {
-    private static final String TAG = "BatterySlice";
+public class BatteryInfoSlice implements CustomSliceable {
+    private static final String TAG = "BatteryInfoSlice";
 
     private final Context mContext;
 
     private BatteryInfo mBatteryInfo;
     private boolean mIsBatteryInfoLoading;
 
-    public BatterySlice(Context context) {
+    public BatteryInfoSlice(Context context) {
         mContext = context;
     }
 

src/com/android/settings/slices/CustomSliceManager.java

@@ -23,7 +23,7 @@ import android.util.ArrayMap;
 import androidx.annotation.VisibleForTesting;
 
 import com.android.settings.flashlight.FlashlightSlice;
-import com.android.settings.homepage.contextualcards.deviceinfo.BatterySlice;
+import com.android.settings.homepage.contextualcards.deviceinfo.BatteryInfoSlice;
 import com.android.settings.homepage.contextualcards.deviceinfo.DataUsageSlice;
 import com.android.settings.homepage.contextualcards.deviceinfo.DeviceInfoSlice;
 import com.android.settings.homepage.contextualcards.deviceinfo.EmergencyInfoSlice;
@@ -106,7 +106,7 @@ public class CustomSliceManager {
 
     private void addSlices() {
         mUriMap.put(CustomSliceRegistry.BATTERY_FIX_SLICE_URI, BatteryFixSlice.class);
-        mUriMap.put(CustomSliceRegistry.BATTERY_INFO_SLICE_URI, BatterySlice.class);
+        mUriMap.put(CustomSliceRegistry.BATTERY_INFO_SLICE_URI, BatteryInfoSlice.class);
         mUriMap.put(CustomSliceRegistry.BLUETOOTH_DEVICES_SLICE_URI, BluetoothDevicesSlice.class);
         mUriMap.put(CustomSliceRegistry.CONTEXTUAL_WIFI_SLICE_URI, ContextualWifiSlice.class);
         mUriMap.put(CustomSliceRegistry.DATA_USAGE_SLICE_URI, DataUsageSlice.class);