| /* |
| * 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.phone; |
| |
| import static com.android.internal.util.Preconditions.checkNotNull; |
| |
| import android.os.Bundle; |
| import android.os.Handler; |
| import android.os.RemoteException; |
| import android.os.ResultReceiver; |
| import android.telephony.TelephonyManager; |
| import android.telephony.UssdResponse; |
| import android.text.TextUtils; |
| import android.util.Log; |
| |
| import com.android.internal.telephony.IIntegerConsumer; |
| |
| import java.util.HashMap; |
| |
| /** |
| * Handling the call waiting USSD result. |
| */ |
| public class CallWaitingUssdResultReceiver extends ResultReceiver { |
| private static final String LOG_TAG = "CwUssdResultReceiver"; |
| |
| private IIntegerConsumer mCallback; |
| private CarrierXmlParser mCarrierXmlParser; |
| private CarrierXmlParser.SsEntry.SSAction mSsAction; |
| |
| CallWaitingUssdResultReceiver(Handler handler, IIntegerConsumer callback, |
| CarrierXmlParser carrierXmlParser, CarrierXmlParser.SsEntry.SSAction action) { |
| super(handler); |
| mCallback = callback; |
| mCarrierXmlParser = carrierXmlParser; |
| mSsAction = action; |
| } |
| |
| @Override |
| protected void onReceiveResult(int resultCode, Bundle ussdResponse) { |
| log("USSD:" + resultCode); |
| checkNotNull(ussdResponse, "ussdResponse cannot be null."); |
| UssdResponse response = ussdResponse.getParcelable( |
| TelephonyManager.USSD_RESPONSE); |
| |
| if (resultCode == TelephonyManager.USSD_RETURN_SUCCESS) { |
| int callWaitingStatus = getStatusFromResponse(response); |
| try { |
| mCallback.accept(callWaitingStatus); |
| } catch (RemoteException e) { |
| log("Fail to notify getCallWaitingStatus due to " + e); |
| } |
| } else { |
| try { |
| mCallback.accept(TelephonyManager.CALL_WAITING_STATUS_UNKNOWN_ERROR); |
| } catch (RemoteException e) { |
| log("Fail to notify getCallWaitingStatus due to " + e); |
| } |
| } |
| } |
| |
| private int getStatusFromResponse(UssdResponse response) { |
| int callWaitingStatus = TelephonyManager.CALL_WAITING_STATUS_UNKNOWN_ERROR; |
| |
| CarrierXmlParser.SsFeature callWaitingFeature = mCarrierXmlParser.getFeature( |
| CarrierXmlParser.FEATURE_CALL_WAITING); |
| if (callWaitingFeature == null) { |
| return callWaitingStatus; |
| } |
| |
| HashMap<String, String> analysisResult = callWaitingFeature |
| .getResponseSet(mSsAction, response.getReturnMessage().toString()); |
| if (analysisResult.get(CarrierXmlParser.TAG_RESPONSE_STATUS_ERROR) != null) { |
| return callWaitingStatus; |
| } |
| |
| if (analysisResult != null && analysisResult.size() != 0) { |
| String tmpStatusStr = analysisResult.get( |
| CarrierXmlParser.TAG_RESPONSE_STATUS); |
| |
| if (!TextUtils.isEmpty(tmpStatusStr)) { |
| if (tmpStatusStr.equals( |
| CarrierXmlParser.TAG_COMMAND_RESULT_DEFINITION_ACTIVATE)) { |
| callWaitingStatus = |
| TelephonyManager.CALL_WAITING_STATUS_ENABLED; |
| } else if (tmpStatusStr.equals( |
| CarrierXmlParser.TAG_COMMAND_RESULT_DEFINITION_DEACTIVATE)) { |
| callWaitingStatus = |
| TelephonyManager.CALL_WAITING_STATUS_DISABLED; |
| } |
| } |
| } |
| return callWaitingStatus; |
| } |
| |
| private static void log(String msg) { |
| Log.d(LOG_TAG, msg); |
| } |
| } |