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.settings.widget;
18 
19 import android.content.Context;
20 
21 import androidx.preference.PreferenceScreen;
22 
23 import com.android.settings.core.BasePreferenceController;
24 import com.android.settingslib.core.lifecycle.LifecycleObserver;
25 import com.android.settingslib.core.lifecycle.events.OnStart;
26 import com.android.settingslib.core.lifecycle.events.OnStop;
27 
28 public class VideoPreferenceController extends BasePreferenceController implements
29         LifecycleObserver, OnStart, OnStop {
30 
31     private VideoPreference mVideoPreference;
32 
VideoPreferenceController(Context context, String preferenceKey)33     public VideoPreferenceController(Context context, String preferenceKey) {
34         super(context, preferenceKey);
35     }
36 
37     @Override
getAvailabilityStatus()38     public int getAvailabilityStatus() {
39         return mVideoPreference != null && mVideoPreference.isAnimationAvailable() ?
40                 AVAILABLE_UNSEARCHABLE : UNSUPPORTED_ON_DEVICE;
41     }
42 
43     @Override
displayPreference(PreferenceScreen screen)44     public void displayPreference(PreferenceScreen screen) {
45         mVideoPreference = screen.findPreference(getPreferenceKey());
46         super.displayPreference(screen);
47     }
48 
49     @Override
onStart()50     public void onStart() {
51         if (mVideoPreference != null) {
52             mVideoPreference.onViewVisible();
53         }
54     }
55 
56     @Override
onStop()57     public void onStop() {
58         if (mVideoPreference != null) {
59             mVideoPreference.onViewInvisible();
60         }
61     }
62 }
63