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/*
* Copyright (c) 2016, 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.car.stream.telecom;
import android.content.BroadcastReceiver;
import android.content.ComponentName;
import android.content.Context;
import android.content.Intent;
import android.content.IntentFilter;
import android.content.ServiceConnection;
import android.os.AsyncTask;
import android.os.IBinder;
import android.os.SystemClock;
import android.telecom.Call;
import android.telecom.CallAudioState;
import android.telecom.TelecomManager;
import android.util.Log;
import com.android.car.stream.StreamCard;
import com.android.car.stream.StreamProducer;
import com.android.car.stream.telecom.StreamInCallService.StreamInCallServiceBinder;
/**
* A {@link StreamProducer} that listens for active call events and produces a {@link StreamCard}
*/
public class CurrentCallStreamProducer extends StreamProducer
implements StreamInCallService.InCallServiceCallback {
private static final String TAG = "CurrentCallProducer";
private StreamInCallService mInCallService;
private PhoneCallback mPhoneCallback;
private CurrentCallActionReceiver mCallActionReceiver;
private Call mCurrentCall;
private long mCurrentCallStartTime;
private CurrentCallConverter mConverter;
private AsyncTask mUpdateStreamItemTask;
private String mDialerPackage;
private TelecomManager mTelecomManager;
public CurrentCallStreamProducer(Context context) {
super(context);
}
@Override
public void start() {
super.start();
if (Log.isLoggable(TAG, Log.DEBUG)) {
Log.d(TAG, "current call producer started");
}
mTelecomManager = (TelecomManager) mContext.getSystemService(Context.TELECOM_SERVICE);
mDialerPackage = mTelecomManager.getDefaultDialerPackage();
mConverter = new CurrentCallConverter(mContext);
mPhoneCallback = new PhoneCallback();
Intent inCallServiceIntent = new Intent(mContext, StreamInCallService.class);
inCallServiceIntent.setAction(StreamInCallService.LOCAL_INCALL_SERVICE_BIND_ACTION);
mContext.bindService(inCallServiceIntent, mServiceConnection, Context.BIND_AUTO_CREATE);
}
@Override
public void stop() {
mContext.unbindService(mServiceConnection);
super.stop();
}
private void acceptCall() {
synchronized (mTelecomManager) {
if (mCurrentCall != null && mCurrentCall.getState() == Call.STATE_RINGING) {
mCurrentCall.answer(0 /* videoState */);
}
}
}
private void disconnectCall() {
synchronized (mTelecomManager) {
if (mCurrentCall != null) {
mCurrentCall.disconnect();
}
}
}
@Override
public void onCallAdded(Call call) {
if (Log.isLoggable(TAG, Log.DEBUG)) {
Log.d(TAG, "on call added, state: " + call.getState());
}
mCurrentCall = call;
updateStreamCard(mCurrentCall, mContext);
call.registerCallback(mPhoneCallback);
}
@Override
public void onCallRemoved(Call call) {
if (Log.isLoggable(TAG, Log.DEBUG)) {
Log.d(TAG, "on call removed, state: " + call.getState());
}
call.unregisterCallback(mPhoneCallback);
updateStreamCard(call, mContext);
mCurrentCall = null;
}
@Override
public void onCallAudioStateChanged(CallAudioState audioState) {
if (mCurrentCall != null && audioState != null) {
if (Log.isLoggable(TAG, Log.DEBUG)) {
Log.d(TAG, "audio state changed, is muted? " + audioState.isMuted());
}
updateStreamCard(mCurrentCall, mContext);
}
}
private void clearUpdateStreamItemTask() {
if (mUpdateStreamItemTask != null) {
mUpdateStreamItemTask.cancel(false);
mUpdateStreamItemTask = null;
}
}
private void updateStreamCard(final Call call, final Context context) {
// Only one update may be active at a time.
clearUpdateStreamItemTask();
mUpdateStreamItemTask = new AsyncTask<Void, Void, StreamCard>() {
@Override
protected StreamCard doInBackground(Void... voids) {
try {
return mConverter.convert(call, context, mInCallService.isMuted(),
mCurrentCallStartTime, mDialerPackage);
} catch (Exception e) {
Log.e(TAG, "Failed to create StreamItem.", e);
throw e;
}
}
@Override
protected void onPostExecute(StreamCard card) {
if (call.getState() == Call.STATE_DISCONNECTED) {
removeCard(card);
} else {
postCard(card);
}
}
}.execute();
}
private class PhoneCallback extends Call.Callback {
@Override
public void onStateChanged(Call call, int state) {
if (Log.isLoggable(TAG, Log.DEBUG)) {
Log.d(TAG, "onStateChanged call: " + call + ", state: " + state);
}
if (state == Call.STATE_ACTIVE) {
mCurrentCallStartTime = SystemClock.elapsedRealtime();
} else {
mCurrentCallStartTime = 0;
}
switch (state) {
// TODO: Determine if a HUD or stream card should be displayed.
case Call.STATE_RINGING: // Incoming call is ringing.
case Call.STATE_DIALING: // Outgoing call that is dialing.
case Call.STATE_ACTIVE: // Call is connected
case Call.STATE_DISCONNECTING: // Call is being disconnected
case Call.STATE_DISCONNECTED: // Call has finished.
updateStreamCard(call, mContext);
mCurrentCall = call;
break;
default:
}
}
}
private class CurrentCallActionReceiver extends BroadcastReceiver {
@Override
public void onReceive(Context context, Intent intent) {
String intentAction = intent.getAction();
if (!TelecomConstants.INTENT_ACTION_STREAM_CALL_CONTROL.equals(intentAction)) {
return;
}
String action = intent.getStringExtra(TelecomConstants.EXTRA_STREAM_CALL_ACTION);
switch (action) {
case TelecomConstants.ACTION_MUTE:
mInCallService.setMuted(true);
break;
case TelecomConstants.ACTION_UNMUTE:
mInCallService.setMuted(false);
break;
case TelecomConstants.ACTION_ACCEPT_CALL:
acceptCall();
break;
case TelecomConstants.ACTION_HANG_UP_CALL:
disconnectCall();
break;
default:
}
}
}
private ServiceConnection mServiceConnection = new ServiceConnection() {
@Override
public void onServiceConnected(ComponentName name, IBinder service) {
StreamInCallServiceBinder binder = (StreamInCallServiceBinder) service;
mInCallService = binder.getService();
mInCallService.setCallback(CurrentCallStreamProducer.this);
if (mCallActionReceiver == null) {
mCallActionReceiver = new CurrentCallActionReceiver();
mContext.registerReceiver(mCallActionReceiver,
new IntentFilter(TelecomConstants.INTENT_ACTION_STREAM_CALL_CONTROL));
}
}
@Override
public void onServiceDisconnected(ComponentName name) {
mInCallService = null;
}
};
}
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