| /* |
| * Copyright 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.telecomm; |
| |
| import android.content.ComponentName; |
| import android.content.pm.PackageManager; |
| import android.content.pm.ServiceInfo; |
| import android.telecomm.CallServiceDescriptor; |
| |
| /** |
| * Utilities to deal with the system telephony services. The system telephony services are treated |
| * differently from 3rd party services in some situations (emergency calls, audio focus, etc...). |
| */ |
| public final class TelephonyUtil { |
| private static final String TAG = TelephonyUtil.class.getSimpleName(); |
| |
| private static final String TELEPHONY_PACKAGE_NAME = |
| "com.android.phone"; |
| |
| private static final String GSM_CALL_SERVICE_CLASS_NAME = |
| "com.android.services.telephony.GsmConnectionService"; |
| |
| private static final String CDMA_CALL_SERVICE_CLASS_NAME = |
| "com.android.services.telephony.CdmaConnectionService"; |
| |
| private TelephonyUtil() {} |
| |
| static boolean isTelephonySelector(CallServiceSelectorWrapper selector) { |
| return selector.getComponentName().getPackageName().equals(TELEPHONY_PACKAGE_NAME); |
| } |
| |
| static boolean isPstnCallService(CallServiceDescriptor descriptor) { |
| ComponentName componentName = descriptor.getServiceComponent(); |
| if (TELEPHONY_PACKAGE_NAME.equals(componentName.getPackageName())) { |
| String className = componentName.getClassName(); |
| return GSM_CALL_SERVICE_CLASS_NAME.equals(className) || |
| CDMA_CALL_SERVICE_CLASS_NAME.equals(className); |
| } |
| |
| return false; |
| } |
| |
| /** |
| * Returns whether or not the call is currently connected as a cellular call (through the |
| * device's cellular radio). |
| */ |
| static boolean isCurrentlyPSTNCall(Call call) { |
| if (Log.DEBUG) { |
| verifyCallServiceExists(GSM_CALL_SERVICE_CLASS_NAME); |
| verifyCallServiceExists(CDMA_CALL_SERVICE_CLASS_NAME); |
| } |
| |
| CallServiceWrapper callService = call.getCallService(); |
| if (callService == null) { |
| return false; |
| } |
| return isPstnCallService(callService.getDescriptor()); |
| } |
| |
| private static void verifyCallServiceExists(String serviceName) { |
| PackageManager packageManager = TelecommApp.getInstance().getPackageManager(); |
| try { |
| ServiceInfo info = packageManager.getServiceInfo( |
| new ComponentName(TELEPHONY_PACKAGE_NAME, serviceName), 0); |
| if (info == null) { |
| Log.wtf(TAG, "Error, unable to find call service: %s", serviceName); |
| } |
| } catch (PackageManager.NameNotFoundException e) { |
| Log.wtf(TAG, e, "Error, exception while trying to find call service: %s", serviceName); |
| } |
| } |
| } |