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/*
* Copyright (C) 2021 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.systemui.telephony;
import android.telephony.ServiceState;
import android.telephony.TelephonyCallback.ActiveDataSubscriptionIdListener;
import android.telephony.TelephonyCallback.CallStateListener;
import android.telephony.TelephonyCallback.ServiceStateListener;
import androidx.annotation.NonNull;
import java.util.ArrayList;
import java.util.List;
import javax.inject.Inject;
/**
* Class for use by {@link TelephonyListenerManager} to centralize TelephonyManager Callbacks.
*
* There are more callback interfaces defined in {@link android.telephony.TelephonyCallback} that
* are not currently covered. Add them here if they ever become necessary.
*/
class TelephonyCallback extends android.telephony.TelephonyCallback
implements ActiveDataSubscriptionIdListener, CallStateListener, ServiceStateListener {
private final List<ActiveDataSubscriptionIdListener> mActiveDataSubscriptionIdListeners =
new ArrayList<>();
private final List<CallStateListener> mCallStateListeners = new ArrayList<>();
private final List<ServiceStateListener> mServiceStateListeners = new ArrayList<>();
@Inject
TelephonyCallback() {
}
boolean hasAnyListeners() {
return !mActiveDataSubscriptionIdListeners.isEmpty()
|| !mCallStateListeners.isEmpty()
|| !mServiceStateListeners.isEmpty();
}
@Override
public void onActiveDataSubscriptionIdChanged(int subId) {
List<ActiveDataSubscriptionIdListener> listeners;
synchronized (mActiveDataSubscriptionIdListeners) {
listeners = new ArrayList<>(mActiveDataSubscriptionIdListeners);
}
listeners.forEach(listener -> listener.onActiveDataSubscriptionIdChanged(subId));
}
void addActiveDataSubscriptionIdListener(ActiveDataSubscriptionIdListener listener) {
mActiveDataSubscriptionIdListeners.add(listener);
}
void removeActiveDataSubscriptionIdListener(ActiveDataSubscriptionIdListener listener) {
mActiveDataSubscriptionIdListeners.remove(listener);
}
@Override
public void onCallStateChanged(int state) {
List<CallStateListener> listeners;
synchronized (mCallStateListeners) {
listeners = new ArrayList<>(mCallStateListeners);
}
listeners.forEach(listener -> listener.onCallStateChanged(state));
}
void addCallStateListener(CallStateListener listener) {
mCallStateListeners.add(listener);
}
void removeCallStateListener(CallStateListener listener) {
mCallStateListeners.remove(listener);
}
@Override
public void onServiceStateChanged(@NonNull ServiceState serviceState) {
List<ServiceStateListener> listeners;
synchronized (mServiceStateListeners) {
listeners = new ArrayList<>(mServiceStateListeners);
}
listeners.forEach(listener -> listener.onServiceStateChanged(serviceState));
}
void addServiceStateListener(ServiceStateListener listener) {
mServiceStateListeners.add(listener);
}
void removeServiceStateListener(ServiceStateListener listener) {
mServiceStateListeners.remove(listener);
}
}
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