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      1 /*
      2  * Copyright (C) 2014 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 
     17 package android.location;
     18 
     19 import android.content.Context;
     20 import android.os.RemoteException;
     21 
     22 /**
     23  * A handler class to manage transport callback for {@link GnssNavigationMessage.Callback}.
     24  *
     25  * @hide
     26  */
     27 class GnssNavigationMessageCallbackTransport
     28         extends LocalListenerHelper<GnssNavigationMessage.Callback> {
     29     private final ILocationManager mLocationManager;
     30 
     31     private final IGnssNavigationMessageListener mListenerTransport = new ListenerTransport();
     32 
     33     public GnssNavigationMessageCallbackTransport(
     34             Context context,
     35             ILocationManager locationManager) {
     36         super(context, "GnssNavigationMessageCallbackTransport");
     37         mLocationManager = locationManager;
     38     }
     39 
     40     @Override
     41     protected boolean registerWithServer() throws RemoteException {
     42         return mLocationManager.addGnssNavigationMessageListener(
     43                 mListenerTransport,
     44                 getContext().getPackageName());
     45     }
     46 
     47     @Override
     48     protected void unregisterFromServer() throws RemoteException {
     49         mLocationManager.removeGnssNavigationMessageListener(mListenerTransport);
     50     }
     51 
     52     private class ListenerTransport extends IGnssNavigationMessageListener.Stub {
     53         @Override
     54         public void onGnssNavigationMessageReceived(final GnssNavigationMessage event) {
     55             ListenerOperation<GnssNavigationMessage.Callback> operation =
     56                     new ListenerOperation<GnssNavigationMessage.Callback>() {
     57                 @Override
     58                 public void execute(GnssNavigationMessage.Callback callback)
     59                         throws RemoteException {
     60                     callback.onGnssNavigationMessageReceived(event);
     61                 }
     62             };
     63             foreach(operation);
     64         }
     65 
     66         @Override
     67         public void onStatusChanged(final int status) {
     68             ListenerOperation<GnssNavigationMessage.Callback> operation =
     69                     new ListenerOperation<GnssNavigationMessage.Callback>() {
     70                 @Override
     71                 public void execute(GnssNavigationMessage.Callback callback)
     72                         throws RemoteException {
     73                     callback.onStatusChanged(status);
     74                 }
     75             };
     76             foreach(operation);
     77         }
     78     }
     79 }
     80