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
17package com.android.dialer.calllog;
18
19import android.content.ComponentName;
20import android.content.Context;
21import android.support.annotation.Nullable;
22import android.telecom.PhoneAccount;
23import android.telecom.PhoneAccountHandle;
24import android.text.TextUtils;
25
26import com.android.contacts.common.compat.CompatUtils;
27import com.android.dialer.util.TelecomUtil;
28
29import java.util.ArrayList;
30import java.util.List;
31
32/**
33 * Methods to help extract {@code PhoneAccount} information from database and Telecomm sources.
34 */
35public class PhoneAccountUtils {
36    /**
37     * Return a list of phone accounts that are subscription/SIM accounts.
38     */
39    public static List<PhoneAccountHandle> getSubscriptionPhoneAccounts(Context context) {
40        List<PhoneAccountHandle> subscriptionAccountHandles = new ArrayList<PhoneAccountHandle>();
41        final List<PhoneAccountHandle> accountHandles =
42                TelecomUtil.getCallCapablePhoneAccounts(context);
43        for (PhoneAccountHandle accountHandle : accountHandles) {
44            PhoneAccount account = TelecomUtil.getPhoneAccount(context, accountHandle);
45            if (account.hasCapabilities(PhoneAccount.CAPABILITY_SIM_SUBSCRIPTION)) {
46                subscriptionAccountHandles.add(accountHandle);
47            }
48        }
49        return subscriptionAccountHandles;
50    }
51
52    /**
53     * Compose PhoneAccount object from component name and account id.
54     */
55    @Nullable
56    public static PhoneAccountHandle getAccount(@Nullable String componentString,
57            @Nullable String accountId) {
58        if (TextUtils.isEmpty(componentString) || TextUtils.isEmpty(accountId)) {
59            return null;
60        }
61        final ComponentName componentName = ComponentName.unflattenFromString(componentString);
62        if (componentName == null) {
63            return null;
64        }
65        return new PhoneAccountHandle(componentName, accountId);
66    }
67
68    /**
69     * Extract account label from PhoneAccount object.
70     */
71    @Nullable
72    public static String getAccountLabel(Context context,
73            @Nullable PhoneAccountHandle accountHandle) {
74        PhoneAccount account = getAccountOrNull(context, accountHandle);
75        if (account != null && account.getLabel() != null) {
76            return account.getLabel().toString();
77        }
78        return null;
79    }
80
81    /**
82     * Extract account color from PhoneAccount object.
83     */
84    public static int getAccountColor(Context context, @Nullable PhoneAccountHandle accountHandle) {
85        final PhoneAccount account = TelecomUtil.getPhoneAccount(context, accountHandle);
86
87        // For single-sim devices the PhoneAccount will be NO_HIGHLIGHT_COLOR by default, so it is
88        // safe to always use the account highlight color.
89        return account == null ? PhoneAccount.NO_HIGHLIGHT_COLOR : account.getHighlightColor();
90    }
91
92    /**
93     * Determine whether a phone account supports call subjects.
94     *
95     * @return {@code true} if call subjects are supported, {@code false} otherwise.
96     */
97    public static boolean getAccountSupportsCallSubject(Context context,
98            @Nullable PhoneAccountHandle accountHandle) {
99        final PhoneAccount account = TelecomUtil.getPhoneAccount(context, accountHandle);
100
101        return account == null ? false :
102                account.hasCapabilities(PhoneAccount.CAPABILITY_CALL_SUBJECT);
103    }
104
105    /**
106     * Retrieve the account metadata, but if the account does not exist or the device has only a
107     * single registered and enabled account, return null.
108     */
109    @Nullable
110    private static PhoneAccount getAccountOrNull(Context context,
111            @Nullable PhoneAccountHandle accountHandle) {
112        if (TelecomUtil.getCallCapablePhoneAccounts(context).size() <= 1) {
113            return null;
114        }
115        return TelecomUtil.getPhoneAccount(context, accountHandle);
116    }
117}
118