content: /*
   * Copyright (C) 2015 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.example.android.common.midi;
  
  import android.app.Activity;
  import android.media.midi.MidiDeviceInfo;
  import android.media.midi.MidiManager;
  import android.util.Log;
  
  import java.io.IOException;
  
  /**
   * Select an output port and connect it to a destination input port.
   */
  public class MidiOutputPortConnectionSelector extends MidiPortSelector {
  
      private MidiPortConnector mSynthConnector;
      private MidiDeviceInfo mDestinationDeviceInfo;
      private int mDestinationPortIndex;
      private MidiPortConnector.OnPortsConnectedListener mConnectedListener;
  
      /**
       * @param midiManager
       * @param activity
       * @param spinnerId
       * @param type
       */
      public MidiOutputPortConnectionSelector(MidiManager midiManager,
              Activity activity, int spinnerId,
              MidiDeviceInfo destinationDeviceInfo, int destinationPortIndex) {
          super(midiManager, activity, spinnerId,
                  MidiDeviceInfo.PortInfo.TYPE_OUTPUT);
          mDestinationDeviceInfo = destinationDeviceInfo;
          mDestinationPortIndex = destinationPortIndex;
      }
  
      @Override
      public void onPortSelected(final MidiPortWrapper wrapper) {
          Log.i(MidiConstants.TAG, "connectPortToSynth: " + wrapper);
          onClose();
          if (wrapper.getDeviceInfo() != null) {
              mSynthConnector = new MidiPortConnector(mMidiManager);
              mSynthConnector.connectToDevicePort(wrapper.getDeviceInfo(),
                      wrapper.getPortIndex(), mDestinationDeviceInfo,
                      mDestinationPortIndex,
                      // not safe on UI thread
                      mConnectedListener, null);
          }
      }
  
      @Override
      public void onClose() {
          try {
              if (mSynthConnector != null) {
                  mSynthConnector.close();
                  mSynthConnector = null;
              }
          } catch (IOException e) {
              Log.e(MidiConstants.TAG, "Exception in closeSynthResources()", e);
          }
      }
  
      /**
       * @param myPortsConnectedListener
       */
      public void setConnectedListener(
              MidiPortConnector.OnPortsConnectedListener connectedListener) {
          mConnectedListener = connectedListener;
      }
  }
  