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      1 /*
      2  * Copyright (C) 2013 The Android Open Source Project
      3  *
      4  * Licensed under the Apache License, Version 2.0 (the "License");
      5  * you may not use this file except in compliance with the License.
      6  * You may obtain a copy of the License at
      7  *
      8  *      http://www.apache.org/licenses/LICENSE-2.0
      9  *
     10  * Unless required by applicable law or agreed to in writing, software
     11  * distributed under the License is distributed on an "AS IS" BASIS,
     12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
     13  * See the License for the specific language governing permissions and
     14  * limitations under the License
     15  */
     16 
     17 package com.android.dialer.calllogutils;
     18 
     19 import android.content.ComponentName;
     20 import android.content.Context;
     21 import android.support.annotation.Nullable;
     22 import android.telecom.PhoneAccount;
     23 import android.telecom.PhoneAccountHandle;
     24 import android.text.TextUtils;
     25 import com.android.dialer.telecom.TelecomUtil;
     26 import java.util.ArrayList;
     27 import java.util.List;
     28 
     29 /** Methods to help extract {@code PhoneAccount} information from database and Telecomm sources. */
     30 public class PhoneAccountUtils {
     31 
     32   /** Return a list of phone accounts that are subscription/SIM accounts. */
     33   public static List<PhoneAccountHandle> getSubscriptionPhoneAccounts(Context context) {
     34     List<PhoneAccountHandle> subscriptionAccountHandles = new ArrayList<PhoneAccountHandle>();
     35     final List<PhoneAccountHandle> accountHandles =
     36         TelecomUtil.getCallCapablePhoneAccounts(context);
     37     for (PhoneAccountHandle accountHandle : accountHandles) {
     38       PhoneAccount account = TelecomUtil.getPhoneAccount(context, accountHandle);
     39       if (account.hasCapabilities(PhoneAccount.CAPABILITY_SIM_SUBSCRIPTION)) {
     40         subscriptionAccountHandles.add(accountHandle);
     41       }
     42     }
     43     return subscriptionAccountHandles;
     44   }
     45 
     46   /** Compose PhoneAccount object from component name and account id. */
     47   @Nullable
     48   public static PhoneAccountHandle getAccount(
     49       @Nullable String componentString, @Nullable String accountId) {
     50     if (TextUtils.isEmpty(componentString) || TextUtils.isEmpty(accountId)) {
     51       return null;
     52     }
     53     final ComponentName componentName = ComponentName.unflattenFromString(componentString);
     54     if (componentName == null) {
     55       return null;
     56     }
     57     return new PhoneAccountHandle(componentName, accountId);
     58   }
     59 
     60   /** Extract account label from PhoneAccount object. */
     61   @Nullable
     62   public static String getAccountLabel(
     63       Context context, @Nullable PhoneAccountHandle accountHandle) {
     64     PhoneAccount account = getAccountOrNull(context, accountHandle);
     65     if (account != null && account.getLabel() != null) {
     66       return account.getLabel().toString();
     67     }
     68     return null;
     69   }
     70 
     71   /** Extract account color from PhoneAccount object. */
     72   public static int getAccountColor(Context context, @Nullable PhoneAccountHandle accountHandle) {
     73     final PhoneAccount account = TelecomUtil.getPhoneAccount(context, accountHandle);
     74 
     75     // For single-sim devices the PhoneAccount will be NO_HIGHLIGHT_COLOR by default, so it is
     76     // safe to always use the account highlight color.
     77     return account == null ? PhoneAccount.NO_HIGHLIGHT_COLOR : account.getHighlightColor();
     78   }
     79 
     80   /**
     81    * Determine whether a phone account supports call subjects.
     82    *
     83    * @return {@code true} if call subjects are supported, {@code false} otherwise.
     84    */
     85   public static boolean getAccountSupportsCallSubject(
     86       Context context, @Nullable PhoneAccountHandle accountHandle) {
     87     final PhoneAccount account = TelecomUtil.getPhoneAccount(context, accountHandle);
     88 
     89     return account != null && account.hasCapabilities(PhoneAccount.CAPABILITY_CALL_SUBJECT);
     90   }
     91 
     92   /**
     93    * Retrieve the account metadata, but if the account does not exist or the device has only a
     94    * single registered and enabled account, return null.
     95    */
     96   @Nullable
     97   private static PhoneAccount getAccountOrNull(
     98       Context context, @Nullable PhoneAccountHandle accountHandle) {
     99     if (TelecomUtil.getCallCapablePhoneAccounts(context).size() <= 1) {
    100       return null;
    101     }
    102     return TelecomUtil.getPhoneAccount(context, accountHandle);
    103   }
    104 }
    105