blob: b9024c41301723542a5590a2eb1e9db510aafc35 [file] [log] [blame]
Eric Erfanian2ca43182017-08-31 06:57:16 -07001/*
2 * Copyright (C) 2017 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
sail3bcea982017-09-03 13:57:22 -070017package com.android.bubble;
Eric Erfanian2ca43182017-08-31 06:57:16 -070018
19import android.content.Context;
20import android.content.res.Configuration;
21import android.support.annotation.NonNull;
22import android.view.KeyEvent;
23import android.widget.FrameLayout;
24
25/**
26 * ViewGroup that handles some overlay window concerns. Allows back button and configuration change
27 * events to be listened for via interfaces.
28 */
29public class WindowRoot extends FrameLayout {
30
31 /** Callback for when the back button is pressed while this window is in focus */
32 public interface OnBackPressedListener {
33 boolean onBackPressed();
34 }
35
36 /** Callback for when the Configuration changes for this window */
37 public interface OnConfigurationChangedListener {
38 void onConfigurationChanged(Configuration newConfiguration);
39 }
40
41 private OnBackPressedListener backPressedListener;
42 private OnConfigurationChangedListener configurationChangedListener;
43
44 public WindowRoot(@NonNull Context context) {
45 super(context);
46 }
47
48 public void setOnBackPressedListener(OnBackPressedListener listener) {
49 backPressedListener = listener;
50 }
51
52 public void setOnConfigurationChangedListener(OnConfigurationChangedListener listener) {
53 configurationChangedListener = listener;
54 }
55
56 @Override
57 public boolean dispatchKeyEvent(KeyEvent event) {
58 if (event.getKeyCode() == KeyEvent.KEYCODE_BACK && backPressedListener != null) {
59 if (event.getAction() == KeyEvent.ACTION_UP) {
60 return backPressedListener.onBackPressed();
61 }
62 return true;
63 }
64 return super.dispatchKeyEvent(event);
65 }
66
67 @Override
68 public void dispatchConfigurationChanged(Configuration newConfig) {
69 super.dispatchConfigurationChanged(newConfig);
70 if (configurationChangedListener != null) {
71 configurationChangedListener.onConfigurationChanged(newConfig);
72 }
73 }
74}