1 /*
2  * Copyright (C) 2018 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.systemui.statusbar.phone;
18 
19 import android.util.Log;
20 
21 import com.android.keyguard.KeyguardHostView.OnDismissAction;
22 
23 /**
24  * Executes actions that require the screen to be unlocked. Delegates the actual handling to an
25  * implementation passed via {@link #setDismissHandler}.
26  */
27 public class KeyguardDismissUtil implements KeyguardDismissHandler {
28     private static final String TAG = "KeyguardDismissUtil";
29 
30     private volatile KeyguardDismissHandler mDismissHandler;
31 
32     /** Sets the actual {@link DismissHandler} implementation. */
setDismissHandler(KeyguardDismissHandler dismissHandler)33     public void setDismissHandler(KeyguardDismissHandler dismissHandler) {
34         mDismissHandler = dismissHandler;
35     }
36 
37     /**
38      * Executes an action that requres the screen to be unlocked.
39      *
40      * <p>Must be called after {@link #setDismissHandler}.
41      */
42     @Override
executeWhenUnlocked(OnDismissAction action)43     public void executeWhenUnlocked(OnDismissAction action) {
44         KeyguardDismissHandler dismissHandler = mDismissHandler;
45         if (dismissHandler == null) {
46             Log.wtf(TAG, "KeyguardDismissHandler not set.");
47             action.onDismiss();
48             return;
49         }
50         dismissHandler.executeWhenUnlocked(action);
51     }
52 }
53