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      1 /*
      2  * Copyright (c) 2016, The Android Open Source Project
      3  *
      4  * Licensed under the Apache License, Version 2.0 (the "License");
      5  * you may not use this file except in compliance with the License.
      6  * You may obtain a copy of the License at
      7  *
      8  *     http://www.apache.org/licenses/LICENSE-2.0
      9  *
     10  * Unless required by applicable law or agreed to in writing, software
     11  * distributed under the License is distributed on an "AS IS" BASIS,
     12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
     13  * See the License for the specific language governing permissions and
     14  * limitations under the License.
     15  */
     16 package com.android.car.hvac.controllers;
     17 
     18 import android.car.hardware.hvac.CarHvacManager;
     19 import android.util.SparseIntArray;
     20 
     21 import com.android.car.hvac.HvacController;
     22 import com.android.car.hvac.ui.FanDirectionButtons;
     23 
     24 /**
     25  * A controller to handle changes in the fan direction. Also maps fan directions specified
     26  * in the {@link FanDirectionButtons} to the {@link CarHvacManager}{@code #FAN_DIRECTION_*}
     27  * constants in the vehicle hardware.
     28  */
     29 public class FanDirectionButtonsController {
     30     private final static int FAN_DIRECTION_COUNT = 4;
     31 
     32     private final FanDirectionButtons mFanDirectionButtons;
     33     private final HvacController mHvacController;
     34     private final SparseIntArray mFanDirectionMap = new SparseIntArray(FAN_DIRECTION_COUNT);
     35 
     36     public FanDirectionButtonsController(FanDirectionButtons speedBar, HvacController controller) {
     37         mFanDirectionButtons = speedBar;
     38         mHvacController = controller;
     39         initialize();
     40     }
     41 
     42     private void initialize() {
     43         // Note Car specific values are being used here, as not all cars have the floor
     44         // and defroster fan direction.
     45         mFanDirectionMap.put(FanDirectionButtons.FAN_DIRECTION_FACE,
     46                 CarHvacManager.FAN_DIRECTION_FACE);
     47         mFanDirectionMap.put(FanDirectionButtons.FAN_DIRECTION_FACE_FLOOR,
     48                 (CarHvacManager.FAN_DIRECTION_FACE | CarHvacManager.FAN_DIRECTION_FLOOR));
     49         mFanDirectionMap.put(FanDirectionButtons.FAN_DIRECTION_FLOOR,
     50                 CarHvacManager.FAN_DIRECTION_FLOOR);
     51         mFanDirectionMap.put(FanDirectionButtons.FAN_DIRECTION_FLOOR_DEFROSTER,
     52                 (CarHvacManager.FAN_DIRECTION_DEFROST | CarHvacManager.FAN_DIRECTION_FLOOR));
     53         mFanDirectionButtons.setFanDirectionClickListener(mListener);
     54     }
     55 
     56     private final FanDirectionButtons.FanDirectionClickListener mListener
     57             = new FanDirectionButtons.FanDirectionClickListener() {
     58         @Override
     59         public void onFanDirectionClicked(@FanDirectionButtons.FanDirection int direction) {
     60             mHvacController.setFanDirection(mFanDirectionMap.get(direction));
     61         }
     62     };
     63 }
     64