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/*
* 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.telecom;
import android.os.RemoteException;
import android.os.ServiceManager;
import android.telephony.TelephonyManager;
import com.android.internal.telephony.ITelephonyRegistry;
/**
* Send a {@link TelephonyManager#ACTION_PHONE_STATE_CHANGED} broadcast when the call state
* changes.
*/
final class PhoneStateBroadcaster extends CallsManagerListenerBase {
private final CallsManager mCallsManager;
private final ITelephonyRegistry mRegistry;
private int mCurrentState = TelephonyManager.CALL_STATE_IDLE;
public PhoneStateBroadcaster(CallsManager callsManager) {
mCallsManager = callsManager;
mRegistry = ITelephonyRegistry.Stub.asInterface(ServiceManager.getService(
"telephony.registry"));
if (mRegistry == null) {
Log.w(this, "TelephonyRegistry is null");
}
}
@Override
public void onCallStateChanged(Call call, int oldState, int newState) {
if ((newState == CallState.DIALING || newState == CallState.ACTIVE
|| newState == CallState.ON_HOLD) &&
!mCallsManager.hasRingingCall()) {
/*
* EXTRA_STATE_RINGING takes precedence over EXTRA_STATE_OFFHOOK, so if there is
* already a ringing call, don't broadcast EXTRA_STATE_OFFHOOK.
*/
sendPhoneStateChangedBroadcast(call, TelephonyManager.CALL_STATE_OFFHOOK);
}
}
@Override
public void onCallAdded(Call call) {
if (call.getState() == CallState.RINGING) {
sendPhoneStateChangedBroadcast(call, TelephonyManager.CALL_STATE_RINGING);
}
};
@Override
public void onCallRemoved(Call call) {
// Recalculate the current phone state based on the consolidated state of the remaining
// calls in the call list.
int callState = TelephonyManager.CALL_STATE_IDLE;
if (mCallsManager.hasRingingCall()) {
callState = TelephonyManager.CALL_STATE_RINGING;
} else if (mCallsManager.getFirstCallWithState(CallState.DIALING, CallState.ACTIVE,
CallState.ON_HOLD) != null) {
callState = TelephonyManager.CALL_STATE_OFFHOOK;
}
sendPhoneStateChangedBroadcast(call, callState);
}
int getCallState() {
return mCurrentState;
}
private void sendPhoneStateChangedBroadcast(Call call, int phoneState) {
if (phoneState == mCurrentState) {
return;
}
mCurrentState = phoneState;
String callHandle = null;
if (call.getHandle() != null) {
callHandle = call.getHandle().getSchemeSpecificPart();
}
try {
if (mRegistry != null) {
mRegistry.notifyCallState(phoneState, callHandle);
Log.i(this, "Broadcasted state change: %s", mCurrentState);
}
} catch (RemoteException e) {
Log.w(this, "RemoteException when notifying TelephonyRegistry of call state change.");
}
}
}
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