Call waiting support USSD function
-Add USSD function
-Call waiting uses TelephonyManager's get/set methods
Bug: 112177857
Test: build pass. Manual test: set/get call waiting.
Change-Id: Ia03fd4ddef1defb1f0f9091c58ab0f1e43936457
diff --git a/src/com/android/phone/CallWaitingUssdResultReceiver.java b/src/com/android/phone/CallWaitingUssdResultReceiver.java
new file mode 100644
index 0000000..b9049e9
--- /dev/null
+++ b/src/com/android/phone/CallWaitingUssdResultReceiver.java
@@ -0,0 +1,112 @@
+/*
+ * 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);
+ }
+}