1 /*
2  * Copyright (C) 2021 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.tv.settings.accounts;
18 
19 import android.content.Context;
20 import android.content.Intent;
21 import android.os.UserHandle;
22 import android.os.UserManager;
23 import android.util.Log;
24 
25 import androidx.annotation.IntDef;
26 
27 import com.android.settingslib.RestrictedLockUtils;
28 import com.android.settingslib.RestrictedLockUtilsInternal;
29 import com.android.tv.settings.MainFragment;
30 import com.android.tv.settings.R;
31 import com.android.tv.settings.overlay.FlavorUtils;
32 import com.android.tv.settings.util.SliceUtils;
33 
34 import java.lang.annotation.Retention;
35 import java.lang.annotation.RetentionPolicy;
36 
37 /** Utility methods for accounts settings */
38 public class AccountsUtil {
39 
40     @Retention(RetentionPolicy.SOURCE)
41     @IntDef({ACCOUNTS_FRAGMENT_DEFAULT,
42             ACCOUNTS_SLICE_FRAGMENT,
43             ACCOUNTS_BASIC_MODE_FRAGMENT,
44             ACCOUNTS_SYSTEM_INTENT,
45             ACCOUNTS_FRAGMENT_RESTRICTED})
46     public @interface AccountsFragmentType {}
47     public static final int ACCOUNTS_FRAGMENT_DEFAULT = 0;
48     public static final int ACCOUNTS_SLICE_FRAGMENT = 1;
49     public static final int ACCOUNTS_BASIC_MODE_FRAGMENT = 2;
50     public static final int ACCOUNTS_SYSTEM_INTENT = 3;
51     public static final int ACCOUNTS_FRAGMENT_RESTRICTED = 4;
52 
53     private static final String ACTION_ACCOUNTS = "com.android.tv.settings.ACCOUNTS";
54     private static final String TAG = "AccountsUtil";
55 
56     /**
57      *  Get the correct accounts settings fragment based on restrictions and other features.
58      * @param context
59      * @return the accounts fragment to launch
60      */
getAccountsFragmentToLaunch(Context context)61     public static @AccountsFragmentType int getAccountsFragmentToLaunch(Context context) {
62         if (AccountsUtil.isAdminRestricted(context)) {
63             return ACCOUNTS_FRAGMENT_RESTRICTED;
64         }
65 
66         try {
67             if (FlavorUtils.getFeatureFactory(context).getBasicModeFeatureProvider()
68                 .isBasicMode(context)) {
69                 return ACCOUNTS_BASIC_MODE_FRAGMENT;
70             }
71         } catch (Exception e) {
72             Log.w(TAG, "Unable to determine basic mode", e);
73         }
74 
75         // If the intent can be handled, use it.
76         Intent accountsIntent = new Intent(ACTION_ACCOUNTS);
77         if (MainFragment.systemIntentIsHandled(context, accountsIntent) != null) {
78             return ACCOUNTS_SYSTEM_INTENT;
79         }
80 
81         // If a slice is available, use it to display the accounts settings, otherwise fall back to
82         // use AccountsFragment.
83         String uri = context.getString(R.string.account_slice_uri);
84         if (SliceUtils.isSliceProviderValid(context, uri)) {
85             return ACCOUNTS_SLICE_FRAGMENT;
86         }
87 
88         return ACCOUNTS_FRAGMENT_DEFAULT;
89     }
90 
91     /**
92      * Verifies if the no_modify_accounts restriction is active
93      * @param context
94      * @return if the no_modify_accounts restriction is active
95      */
isAdminRestricted(Context context)96     public static boolean isAdminRestricted(Context context) {
97         RestrictedLockUtils.EnforcedAdmin admin =
98                 RestrictedLockUtilsInternal.checkIfRestrictionEnforced(context,
99                         UserManager.DISALLOW_MODIFY_ACCOUNTS, UserHandle.myUserId());
100         return (admin != null);
101     }
102 }
103