1 /*
2  * Copyright (C) 2022 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.biometrics2.ui.viewmodel;
18 
19 import android.annotation.IntDef;
20 import android.app.Application;
21 import android.util.Log;
22 import android.view.accessibility.AccessibilityManager;
23 
24 import androidx.annotation.NonNull;
25 import androidx.lifecycle.AndroidViewModel;
26 import androidx.lifecycle.LiveData;
27 import androidx.lifecycle.MutableLiveData;
28 
29 import java.lang.annotation.Retention;
30 import java.lang.annotation.RetentionPolicy;
31 
32 /**
33  * ViewModel explaining the fingerprint sensor location for fingerprint enrollment.
34  */
35 public class FingerprintEnrollFindSensorViewModel extends AndroidViewModel {
36 
37     private static final boolean DEBUG = false;
38     private static final String TAG = "FingerprintEnrollFindSensorViewModel";
39 
40     /**
41      * User clicks 'Skip' button on this page in Settings
42      */
43     public static final int FINGERPRINT_ENROLL_FIND_SENSOR_ACTION_SKIP = 0;
44 
45     /**
46      * User clicks 'Skip' button on this page in SetupWizard flow
47      */
48     public static final int FINGERPRINT_ENROLL_FIND_SENSOR_ACTION_DIALOG = 1;
49 
50     /**
51      * User clicks 'Start' button on this page
52      */
53     public static final int FINGERPRINT_ENROLL_FIND_SENSOR_ACTION_START = 2;
54 
55     @IntDef(prefix = { "FINGERPRINT_ENROLL_FIND_SENSOR_ACTION_" }, value = {
56             FINGERPRINT_ENROLL_FIND_SENSOR_ACTION_SKIP,
57             FINGERPRINT_ENROLL_FIND_SENSOR_ACTION_DIALOG,
58             FINGERPRINT_ENROLL_FIND_SENSOR_ACTION_START
59     })
60     @Retention(RetentionPolicy.SOURCE)
61     public @interface FingerprintEnrollFindSensorAction {}
62 
63     private final AccessibilityManager mAccessibilityManager;
64 
65     private final boolean mIsSuw;
66     @NonNull private final MutableLiveData<Integer> mActionLiveData = new MutableLiveData<>();
67 
FingerprintEnrollFindSensorViewModel(@onNull Application application, boolean isSuw)68     public FingerprintEnrollFindSensorViewModel(@NonNull Application application, boolean isSuw) {
69         super(application);
70         mAccessibilityManager = application.getSystemService(AccessibilityManager.class);
71         mIsSuw = isSuw;
72     }
73 
74     /**
75      * Returns action live data that user chooses
76      */
getActionLiveData()77     public LiveData<Integer> getActionLiveData() {
78         return mActionLiveData;
79     }
80 
81     /**
82      * Clear ActionLiveData to prevent get obsolete data
83      */
clearActionLiveData()84     public void clearActionLiveData() {
85         mActionLiveData.setValue(null);
86     }
87 
88     /**
89      * User clicks skip button on dialog
90      */
onSkipDialogButtonClick()91     public void onSkipDialogButtonClick() {
92         final int action = FINGERPRINT_ENROLL_FIND_SENSOR_ACTION_SKIP;
93         if (DEBUG) {
94             Log.d(TAG, "onSkipDialogButtonClick, post " + action);
95         }
96         mActionLiveData.postValue(action);
97     }
98 
99     /**
100      * User clicks skip button
101      */
onSkipButtonClick()102     public void onSkipButtonClick() {
103         final int action = mIsSuw
104                 ? FINGERPRINT_ENROLL_FIND_SENSOR_ACTION_DIALOG
105                 : FINGERPRINT_ENROLL_FIND_SENSOR_ACTION_SKIP;
106         if (DEBUG) {
107             Log.d(TAG, "onSkipButtonClick, post action " + action);
108         }
109         mActionLiveData.postValue(action);
110     }
111 
112     /**
113      * User clicks start button
114      */
onStartButtonClick()115     public void onStartButtonClick() {
116         final int action = FINGERPRINT_ENROLL_FIND_SENSOR_ACTION_START;
117         if (DEBUG) {
118             Log.d(TAG, "onStartButtonClick, post action " + action);
119         }
120         mActionLiveData.postValue(action);
121     }
122 
123     /**
124      * Returns the info about accessibility is enabled or not
125      */
isAccessibilityEnabled()126     public boolean isAccessibilityEnabled() {
127         return mAccessibilityManager.isEnabled();
128     }
129 }
130