content: /*
   * Copyright (C) 2014 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.server.location;
  
  import android.content.Context;
  import android.location.IGnssStatusListener;
  import android.os.Handler;
  import android.util.Log;
  
  /**
   * Implementation of a handler for {@link IGnssStatusListener}.
   */
  public abstract class GnssStatusListenerHelper extends RemoteListenerHelper<IGnssStatusListener> {
      private static final String TAG = "GnssStatusListenerHelper";
      private static final boolean DEBUG = Log.isLoggable(TAG, Log.DEBUG);
  
      protected GnssStatusListenerHelper(Context context, Handler handler) {
          super(context, handler, TAG);
          setSupported(GnssLocationProvider.isSupported());
      }
  
      @Override
      protected int registerWithService() {
          return RemoteListenerHelper.RESULT_SUCCESS;
      }
  
      @Override
      protected void unregisterFromService() {}
  
      @Override
      protected ListenerOperation<IGnssStatusListener> getHandlerOperation(int result) {
          return null;
      }
  
      public void onStatusChanged(boolean isNavigating) {
          if (isNavigating) {
              foreach((IGnssStatusListener listener, CallerIdentity callerIdentity) -> {
                  listener.onGnssStarted();
              });
          } else {
              foreach((IGnssStatusListener listener, CallerIdentity callerIdentity) -> {
                  listener.onGnssStopped();
              });
          }
      }
  
      public void onFirstFix(final int timeToFirstFix) {
          foreach((IGnssStatusListener listener, CallerIdentity callerIdentity) -> {
                      listener.onFirstFix(timeToFirstFix);
                  }
          );
      }
  
      public void onSvStatusChanged(
              final int svCount,
              final int[] prnWithFlags,
              final float[] cn0s,
              final float[] elevations,
              final float[] azimuths,
              final float[] carrierFreqs) {
          foreach((IGnssStatusListener listener, CallerIdentity callerIdentity) -> {
              if (!hasPermission(mContext, callerIdentity)) {
                  logPermissionDisabledEventNotReported(TAG, callerIdentity.mPackageName,
                          "GNSS status");
                  return;
              }
              listener.onSvStatusChanged(svCount, prnWithFlags, cn0s, elevations, azimuths,
                      carrierFreqs);
          });
      }
  
      public void onNmeaReceived(final long timestamp, final String nmea) {
          foreach((IGnssStatusListener listener, CallerIdentity callerIdentity) -> {
              if (!hasPermission(mContext, callerIdentity)) {
                  logPermissionDisabledEventNotReported(TAG, callerIdentity.mPackageName, "NMEA");
                  return;
              }
              listener.onNmeaReceived(timestamp, nmea);
          });
      }
  }
  