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      1 /*
      2  * Copyright (C) 2016 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.settings;
     18 
     19 import android.content.Context;
     20 import android.content.Intent;
     21 
     22 /**
     23  * Helper for handling managed passwords in security settings UI.
     24  * It provides resources that should be shown in settings UI when lock password quality is set to
     25  * {@link android.app.admin.DevicePolicyManager#PASSWORD_QUALITY_MANAGED} and hooks for implementing
     26  * an option for setting the password quality to
     27  * {@link android.app.admin.DevicePolicyManager#PASSWORD_QUALITY_MANAGED}.
     28  */
     29 public class ManagedLockPasswordProvider {
     30     /** Factory method to make it easier to inject extended ManagedLockPasswordProviders. */
     31     static ManagedLockPasswordProvider get(Context context, int userId) {
     32         return new ManagedLockPasswordProvider();
     33     }
     34 
     35     protected ManagedLockPasswordProvider() {}
     36 
     37     /**
     38      * Whether choosing/setting a managed lock password is supported for the user.
     39      * Please update {@link #getPickerOptionTitle(boolean)} if overridden to return true.
     40      */
     41     boolean isSettingManagedPasswordSupported() { return false; }
     42 
     43     /**
     44      * Whether the user should be able to choose managed lock password.
     45      */
     46     boolean isManagedPasswordChoosable() { return false; }
     47 
     48     /**
     49      * Returns title for managed password preference in security (lock) setting picker.
     50      * Should be overridden if {@link #isManagedPasswordSupported()} returns true.
     51      * @param forFingerprint Whether fingerprint unlock is enabled.
     52      */
     53     String getPickerOptionTitle(boolean forFingerprint) { return ""; }
     54 
     55     /**
     56      * Gets resource id of the lock screen preference that should be displayed in security settings
     57      * if the current password quality is set to
     58      * {@link android.app.admin.DevicePolicyManager#PASSWORD_QUALITY_MANAGED}.
     59      * @param forProfile Whether the settings are shown for a user profile rather than a user.
     60      */
     61     int getResIdForLockUnlockScreen(boolean forProfile) {
     62         return forProfile ? R.xml.security_settings_password_profile
     63                 : R.xml.security_settings_password;
     64     }
     65 
     66     /**
     67      * Gets resource id of the subscreen that should be shown after clicking gear icon for lock
     68      * screen preference in security settings if the current password quality is set to
     69      * {@link android.app.admin.DevicePolicyManager#PASSWORD_QUALITY_MANAGED}.
     70      */
     71     int getResIdForLockUnlockSubScreen() {
     72         return R.xml.security_settings_password_sub;
     73     }
     74 
     75     /**
     76      * Creates intent that should be launched when user chooses managed password in the lock
     77      * settings picker.
     78      * @param requirePasswordToDecrypt Whether a password is needed to decrypt the user.
     79      * @param password Current lock password.
     80      * @return Intent that should update lock password to a managed password.
     81      */
     82     Intent createIntent(boolean requirePasswordToDecrypt, String password) {
     83         return null;
     84     }
     85 }
     86