| /* |
| * 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.server.telecom; |
| |
| import android.content.ComponentName; |
| import android.content.Context; |
| import android.net.Uri; |
| import android.telecom.PhoneAccount; |
| import android.telecom.PhoneAccountHandle; |
| import android.telephony.PhoneNumberUtils; |
| import android.telephony.SubscriptionManager; |
| import android.telephony.TelephonyManager; |
| |
| import com.android.internal.annotations.VisibleForTesting; |
| |
| import java.util.Collections; |
| import java.util.Comparator; |
| import java.util.List; |
| |
| /** |
| * 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 TELEPHONY_PACKAGE_NAME = "com.android.phone"; |
| |
| private static final String PSTN_CALL_SERVICE_CLASS_NAME = |
| "com.android.services.telephony.TelephonyConnectionService"; |
| |
| private static final PhoneAccountHandle DEFAULT_EMERGENCY_PHONE_ACCOUNT_HANDLE = |
| new PhoneAccountHandle( |
| new ComponentName(TELEPHONY_PACKAGE_NAME, PSTN_CALL_SERVICE_CLASS_NAME), "E"); |
| |
| private TelephonyUtil() {} |
| |
| /** |
| * @return fallback {@link PhoneAccount} to be used by Telecom for emergency calls in the |
| * rare case that Telephony has not registered any phone accounts yet. Details about this |
| * account are not expected to be displayed in the UI, so the description, etc are not |
| * populated. |
| */ |
| @VisibleForTesting |
| public static PhoneAccount getDefaultEmergencyPhoneAccount() { |
| return PhoneAccount.builder(DEFAULT_EMERGENCY_PHONE_ACCOUNT_HANDLE, "E") |
| .setCapabilities(PhoneAccount.CAPABILITY_SIM_SUBSCRIPTION | |
| PhoneAccount.CAPABILITY_CALL_PROVIDER | |
| PhoneAccount.CAPABILITY_PLACE_EMERGENCY_CALLS) |
| .setIsEnabled(true) |
| .build(); |
| } |
| |
| static boolean isPstnComponentName(ComponentName componentName) { |
| final ComponentName pstnComponentName = new ComponentName( |
| TELEPHONY_PACKAGE_NAME, PSTN_CALL_SERVICE_CLASS_NAME); |
| return pstnComponentName.equals(componentName); |
| } |
| |
| public static boolean shouldProcessAsEmergency(Context context, Uri handle) { |
| return handle != null && PhoneNumberUtils.isLocalEmergencyNumber( |
| context, handle.getSchemeSpecificPart()); |
| } |
| |
| public static void sortSimPhoneAccounts(Context context, List<PhoneAccount> accounts) { |
| final TelephonyManager telephonyManager = TelephonyManager.from(context); |
| |
| // Sort the accounts according to how we want to display them. |
| Collections.sort(accounts, new Comparator<PhoneAccount>() { |
| @Override |
| public int compare(PhoneAccount account1, PhoneAccount account2) { |
| int retval = 0; |
| |
| // SIM accounts go first |
| boolean isSim1 = account1.hasCapabilities(PhoneAccount.CAPABILITY_SIM_SUBSCRIPTION); |
| boolean isSim2 = account2.hasCapabilities(PhoneAccount.CAPABILITY_SIM_SUBSCRIPTION); |
| if (isSim1 != isSim2) { |
| retval = isSim1 ? -1 : 1; |
| } |
| |
| int subId1 = telephonyManager.getSubIdForPhoneAccount(account1); |
| int subId2 = telephonyManager.getSubIdForPhoneAccount(account2); |
| if (subId1 != SubscriptionManager.INVALID_SUBSCRIPTION_ID && |
| subId2 != SubscriptionManager.INVALID_SUBSCRIPTION_ID) { |
| retval = (SubscriptionManager.getSlotIndex(subId1) < |
| SubscriptionManager.getSlotIndex(subId2)) ? -1 : 1; |
| } |
| |
| // Then order by package |
| if (retval == 0) { |
| String pkg1 = account1.getAccountHandle().getComponentName().getPackageName(); |
| String pkg2 = account2.getAccountHandle().getComponentName().getPackageName(); |
| retval = pkg1.compareTo(pkg2); |
| } |
| |
| // Finally, order by label |
| if (retval == 0) { |
| String label1 = nullToEmpty(account1.getLabel().toString()); |
| String label2 = nullToEmpty(account2.getLabel().toString()); |
| retval = label1.compareTo(label2); |
| } |
| |
| // Then by hashcode |
| if (retval == 0) { |
| retval = account1.hashCode() - account2.hashCode(); |
| } |
| return retval; |
| } |
| }); |
| } |
| |
| private static String nullToEmpty(String str) { |
| return str == null ? "" : str; |
| } |
| } |