1 /*
2  * Copyright (C) 2015 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.app.Fragment;
20 import android.content.Intent;
21 import android.os.Bundle;
22 
23 /**
24  * An invisible retained fragment to track lock check result.
25  */
26 public class CredentialCheckResultTracker extends Fragment {
27 
28     private Listener mListener;
29     private boolean mHasResult = false;
30 
31     private boolean mResultMatched;
32     private Intent mResultData;
33     private int mResultTimeoutMs;
34     private int mResultEffectiveUserId;
35 
36     @Override
onCreate(Bundle savedInstanceState)37     public void onCreate(Bundle savedInstanceState) {
38         super.onCreate(savedInstanceState);
39         setRetainInstance(true);
40     }
41 
setListener(Listener listener)42     public void setListener(Listener listener) {
43         if (mListener == listener) {
44             return;
45         }
46 
47         mListener = listener;
48         if (mListener != null && mHasResult) {
49             mListener.onCredentialChecked(mResultMatched, mResultData, mResultTimeoutMs,
50                     mResultEffectiveUserId, false /* newResult */);
51         }
52     }
53 
setResult(boolean matched, Intent intent, int timeoutMs, int effectiveUserId)54     public void setResult(boolean matched, Intent intent, int timeoutMs, int effectiveUserId) {
55         mResultMatched = matched;
56         mResultData = intent;
57         mResultTimeoutMs = timeoutMs;
58         mResultEffectiveUserId = effectiveUserId;
59 
60         mHasResult = true;
61         if (mListener != null) {
62             mListener.onCredentialChecked(mResultMatched, mResultData, mResultTimeoutMs,
63                     mResultEffectiveUserId, true /* newResult */);
64             mHasResult = false;
65         }
66     }
67 
clearResult()68     public void clearResult() {
69         mHasResult = false;
70         mResultMatched = false;
71         mResultData = null;
72         mResultTimeoutMs = 0;
73         mResultEffectiveUserId = 0;
74     }
75 
76     interface Listener {
onCredentialChecked(boolean matched, Intent intent, int timeoutMs, int effectiveUserId, boolean newResult)77         public void onCredentialChecked(boolean matched, Intent intent, int timeoutMs,
78                 int effectiveUserId, boolean newResult);
79     }
80 }
81