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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
17package android.support.v17.preference;
18
19import android.content.Context;
20import android.support.annotation.NonNull;
21import android.util.AttributeSet;
22import android.view.KeyEvent;
23import android.widget.FrameLayout;
24
25/**
26 * @hide
27 */
28public class LeanbackSettingsRootView extends FrameLayout {
29
30    private OnKeyListener mOnBackKeyListener;
31
32    public LeanbackSettingsRootView(Context context) {
33        super(context);
34    }
35
36    public LeanbackSettingsRootView(Context context, AttributeSet attrs) {
37        super(context, attrs);
38    }
39
40    public LeanbackSettingsRootView(Context context, AttributeSet attrs, int defStyleAttr) {
41        super(context, attrs, defStyleAttr);
42    }
43
44    public void setOnBackKeyListener(OnKeyListener backKeyListener) {
45        mOnBackKeyListener = backKeyListener;
46    }
47
48    @Override
49    public boolean dispatchKeyEvent(@NonNull KeyEvent event) {
50        boolean handled = false;
51        if (event.getAction() == KeyEvent.ACTION_UP && event.getKeyCode() == KeyEvent.KEYCODE_BACK
52                && mOnBackKeyListener != null) {
53            handled = mOnBackKeyListener.onKey(this, event.getKeyCode(), event);
54        }
55        return handled || super.dispatchKeyEvent(event);
56    }
57}
58