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      1 /*
      2  * Copyright 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 com.android.server.telecom;
     18 
     19 import android.media.ToneGenerator;
     20 import android.telecom.CallState;
     21 
     22 import java.util.Collection;
     23 
     24 /**
     25  * Monitors events from CallsManager and plays in-call tones for events which require them, such as
     26  * different type of call disconnections (busy tone, congestion tone, etc).
     27  */
     28 public final class InCallToneMonitor extends CallsManagerListenerBase {
     29     private final InCallTonePlayer.Factory mPlayerFactory;
     30 
     31     private final CallsManager mCallsManager;
     32 
     33     InCallToneMonitor(InCallTonePlayer.Factory playerFactory, CallsManager callsManager) {
     34         mPlayerFactory = playerFactory;
     35         mCallsManager = callsManager;
     36     }
     37 
     38     @Override
     39     public void onCallStateChanged(Call call, int oldState, int newState) {
     40         if (mCallsManager.getForegroundCall() != call) {
     41             // We only play tones for foreground calls.
     42             return;
     43         }
     44 
     45         if (newState == CallState.DISCONNECTED && call.getDisconnectCause() != null) {
     46             int toneToPlay = InCallTonePlayer.TONE_INVALID;
     47 
     48             Log.v(this, "Disconnect cause: %s.", call.getDisconnectCause());
     49 
     50             switch(call.getDisconnectCause().getTone()) {
     51                 case ToneGenerator.TONE_SUP_BUSY:
     52                     toneToPlay = InCallTonePlayer.TONE_BUSY;
     53                     break;
     54                 case ToneGenerator.TONE_SUP_CONGESTION:
     55                     toneToPlay = InCallTonePlayer.TONE_CONGESTION;
     56                     break;
     57                 case ToneGenerator.TONE_CDMA_REORDER:
     58                     toneToPlay = InCallTonePlayer.TONE_REORDER;
     59                     break;
     60                 case ToneGenerator.TONE_CDMA_ABBR_INTERCEPT:
     61                     toneToPlay = InCallTonePlayer.TONE_INTERCEPT;
     62                     break;
     63                 case ToneGenerator.TONE_CDMA_CALLDROP_LITE:
     64                     toneToPlay = InCallTonePlayer.TONE_CDMA_DROP;
     65                     break;
     66                 case ToneGenerator.TONE_SUP_ERROR:
     67                     toneToPlay = InCallTonePlayer.TONE_UNOBTAINABLE_NUMBER;
     68                     break;
     69                 case ToneGenerator.TONE_PROP_PROMPT:
     70                     toneToPlay = InCallTonePlayer.TONE_CALL_ENDED;
     71                     break;
     72             }
     73 
     74             Log.d(this, "Found a disconnected call with tone to play %d.", toneToPlay);
     75 
     76             if (toneToPlay != InCallTonePlayer.TONE_INVALID) {
     77                 mPlayerFactory.createPlayer(toneToPlay).startTone();
     78             }
     79         }
     80     }
     81 }
     82