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.server.policy;
18 
19 import android.annotation.NonNull;
20 import android.app.Dialog;
21 import android.content.Context;
22 import android.os.Bundle;
23 import android.view.Gravity;
24 import android.view.View;
25 import android.view.Window;
26 import android.view.WindowManager;
27 import android.view.accessibility.AccessibilityEvent;
28 import android.widget.Button;
29 
30 import com.android.internal.R;
31 
32 /**
33  * Toast for side fps. This is typically shown during enrollment
34  * when a user presses the power button.
35  *
36  * This dialog is used by {@link SideFpsEventHandler}
37  */
38 public class SideFpsToast extends Dialog {
SideFpsToast(Context context)39     SideFpsToast(Context context) {
40         super(context);
41     }
42 
43     @Override
onCreate(Bundle savedInstanceState)44     protected void onCreate(Bundle savedInstanceState) {
45         super.onCreate(savedInstanceState);
46         setContentView(R.layout.side_fps_toast);
47     }
48 
49     @Override
onStart()50     protected void onStart() {
51         super.onStart();
52         final Window window = this.getWindow();
53         WindowManager.LayoutParams windowParams = window.getAttributes();
54         windowParams.dimAmount = 0;
55         windowParams.flags |= WindowManager.LayoutParams.FLAG_DIM_BEHIND;
56         windowParams.gravity = Gravity.BOTTOM;
57         window.setAttributes(windowParams);
58     }
59 
60     /**
61      * Sets the onClickListener for the toast dialog.
62      * @param listener
63      */
setOnClickListener(View.OnClickListener listener)64     public void setOnClickListener(View.OnClickListener listener) {
65         final Button turnOffScreen = findViewById(R.id.turn_off_screen);
66         if (turnOffScreen != null) {
67             turnOffScreen.setOnClickListener(listener);
68         }
69     }
70 
71     /**
72      * When accessibility mode is on, add AccessibilityDelegate to dismiss dialog when focus is
73      * moved away from the dialog.
74      */
addAccessibilityDelegate()75     public void addAccessibilityDelegate() {
76         final Button turnOffScreen = findViewById(R.id.turn_off_screen);
77         if (turnOffScreen != null) {
78             turnOffScreen.setAccessibilityDelegate(new View.AccessibilityDelegate() {
79                 @Override
80                 public void onInitializeAccessibilityEvent(@NonNull View host,
81                         @NonNull AccessibilityEvent event) {
82                     if (event.getEventType()
83                             == AccessibilityEvent.TYPE_VIEW_ACCESSIBILITY_FOCUS_CLEARED
84                             && isShowing()) {
85                         dismiss();
86                     }
87                     super.onInitializeAccessibilityEvent(host, event);
88                 }
89             });
90 
91         }
92     }
93 }
94