| /* |
| * Copyright (C) 2016 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.car; |
| |
| import android.annotation.IntDef; |
| import android.app.UiModeManager; |
| import android.car.hardware.CarPropertyValue; |
| import android.car.hardware.property.CarPropertyEvent; |
| import android.car.hardware.property.ICarPropertyEventListener; |
| import android.content.Context; |
| import android.hardware.automotive.vehicle.V2_0.VehicleProperty; |
| import android.os.RemoteException; |
| import android.util.Log; |
| |
| import com.android.internal.annotations.GuardedBy; |
| |
| import java.io.PrintWriter; |
| import java.lang.annotation.Retention; |
| import java.lang.annotation.RetentionPolicy; |
| import java.util.List; |
| |
| /** |
| * Class used to handle events used to set vehicle in night mode. |
| */ |
| public class CarNightService implements CarServiceBase { |
| |
| public static final boolean DBG = false; |
| |
| @IntDef({FORCED_SENSOR_MODE, FORCED_DAY_MODE, FORCED_NIGHT_MODE}) |
| @Retention(RetentionPolicy.SOURCE) |
| public @interface DayNightSensorMode {} |
| |
| public static final int FORCED_SENSOR_MODE = 0; |
| public static final int FORCED_DAY_MODE = 1; |
| public static final int FORCED_NIGHT_MODE = 2; |
| |
| private final Object mLock = new Object(); |
| @GuardedBy("mLock") |
| private int mNightSetting = UiModeManager.MODE_NIGHT_YES; |
| @GuardedBy("mLock") |
| private int mForcedMode = FORCED_SENSOR_MODE; |
| @GuardedBy("mLock") |
| private long mLastSensorEventTime = -1; |
| private final Context mContext; |
| @GuardedBy("mLock") |
| private final UiModeManager mUiModeManager; |
| private final CarPropertyService mCarPropertyService; |
| |
| private final ICarPropertyEventListener mICarPropertyEventListener = |
| new ICarPropertyEventListener.Stub() { |
| @Override |
| public void onEvent(List<CarPropertyEvent> events) throws RemoteException { |
| synchronized (mLock) { |
| for (CarPropertyEvent event : events) { |
| onNightModeCarPropertyEventLocked(event); |
| } |
| } |
| } |
| }; |
| |
| /** |
| * Acts on {@link CarPropertyEvent} events marked with |
| * {@link CarPropertyEvent.PROPERTY_EVENT_PROPERTY_CHANGE} and marked with {@link |
| * VehicleProperty.NIGHT_MODE} by |
| * setting the vehicle in night mode. |
| * <p> |
| * This method does nothing if the event parameter is {@code null}. |
| * |
| * @param event the car property event to be handled |
| */ |
| @GuardedBy("mLock") |
| private void onNightModeCarPropertyEventLocked(CarPropertyEvent event) { |
| if (event == null) { |
| return; |
| } |
| if (event.getEventType() == CarPropertyEvent.PROPERTY_EVENT_PROPERTY_CHANGE) { |
| // Only handle onChange events |
| CarPropertyValue value = event.getCarPropertyValue(); |
| if (value.getPropertyId() == VehicleProperty.NIGHT_MODE |
| && value.getTimestamp() > mLastSensorEventTime) { |
| mLastSensorEventTime = value.getTimestamp(); |
| boolean nightMode = (Boolean) value.getValue(); |
| Log.i(CarLog.TAG_SENSOR, "Set dayNight Mode as " |
| + nightMode + " at timestamp: " + mLastSensorEventTime); |
| setNightModeLocked(nightMode); |
| } |
| } |
| } |
| |
| @GuardedBy("mLock") |
| private void setNightModeLocked(boolean nightMode) { |
| if (nightMode) { |
| mNightSetting = UiModeManager.MODE_NIGHT_YES; |
| if (DBG) Log.d(CarLog.TAG_SENSOR, "CAR dayNight handleSensorEvent NIGHT"); |
| } else { |
| mNightSetting = UiModeManager.MODE_NIGHT_NO; |
| if (DBG) Log.d(CarLog.TAG_SENSOR, "CAR dayNight handleSensorEvent DAY"); |
| } |
| if (mUiModeManager != null && (mForcedMode == FORCED_SENSOR_MODE)) { |
| mUiModeManager.setNightMode(mNightSetting); |
| if (DBG) Log.d(CarLog.TAG_SENSOR, "CAR dayNight handleSensorEvent APPLIED"); |
| } else { |
| if (DBG) Log.d(CarLog.TAG_SENSOR, "CAR dayNight handleSensorEvent IGNORED"); |
| } |
| } |
| |
| /** |
| * Sets {@link UiModeManager} to night mode according to the {@link DayNightSensorMode} passed |
| * as parameter. |
| * |
| * @param mode the sensor mode used to set vehicle in night mode |
| * @return the current night mode, or {@code -1} on error |
| */ |
| public int forceDayNightMode(@DayNightSensorMode int mode) { |
| synchronized (mLock) { |
| if (mUiModeManager == null) { |
| return -1; |
| } |
| int resultMode; |
| switch (mode) { |
| case FORCED_SENSOR_MODE: |
| resultMode = mNightSetting; |
| mForcedMode = FORCED_SENSOR_MODE; |
| break; |
| case FORCED_DAY_MODE: |
| resultMode = UiModeManager.MODE_NIGHT_NO; |
| mForcedMode = FORCED_DAY_MODE; |
| break; |
| case FORCED_NIGHT_MODE: |
| resultMode = UiModeManager.MODE_NIGHT_YES; |
| mForcedMode = FORCED_NIGHT_MODE; |
| break; |
| default: |
| Log.e(CarLog.TAG_SENSOR, "Unknown forced day/night mode " + mode); |
| return -1; |
| } |
| mUiModeManager.setNightMode(resultMode); |
| return mUiModeManager.getNightMode(); |
| } |
| } |
| |
| CarNightService(Context context, CarPropertyService propertyService) { |
| mContext = context; |
| mCarPropertyService = propertyService; |
| mUiModeManager = (UiModeManager) mContext.getSystemService(Context.UI_MODE_SERVICE); |
| if (mUiModeManager == null) { |
| Log.w(CarLog.TAG_SENSOR, "Failed to get UI_MODE_SERVICE"); |
| } |
| } |
| |
| @Override |
| public void init() { |
| if (DBG) { |
| Log.d(CarLog.TAG_SENSOR, "CAR dayNight init."); |
| } |
| synchronized (mLock) { |
| mCarPropertyService.registerListener(VehicleProperty.NIGHT_MODE, 0, |
| mICarPropertyEventListener); |
| CarPropertyValue propertyValue = mCarPropertyService.getProperty( |
| VehicleProperty.NIGHT_MODE, 0); |
| if (propertyValue != null && propertyValue.getTimestamp() != 0) { |
| mLastSensorEventTime = propertyValue.getTimestamp(); |
| setNightModeLocked((Boolean) propertyValue.getValue()); |
| } else { |
| Log.w(CarLog.TAG_SENSOR, "Failed to get value of NIGHT_MODE"); |
| setNightModeLocked(true); |
| } |
| } |
| } |
| |
| @Override |
| public void release() { |
| } |
| |
| @Override |
| public void dump(PrintWriter writer) { |
| synchronized (mLock) { |
| writer.println("*DAY NIGHT POLICY*"); |
| writer.println( |
| "Mode:" + ((mNightSetting == UiModeManager.MODE_NIGHT_YES) ? "night" : "day")); |
| writer.println("Forced Mode? " + (mForcedMode == FORCED_SENSOR_MODE |
| ? "false, timestamp of dayNight sensor is: " + mLastSensorEventTime |
| : (mForcedMode == FORCED_DAY_MODE ? "day" : "night"))); |
| } |
| } |
| } |
| |