1 /*
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 
17 package com.android.settings.notification;
18 
19 import android.content.Context;
20 
21 import androidx.preference.Preference;
22 
23 import com.android.settings.R;
24 import com.android.settings.core.PreferenceControllerMixin;
25 
26 public class DeletedChannelsPreferenceController extends NotificationPreferenceController
27         implements PreferenceControllerMixin {
28 
29     private static final String  KEY_DELETED = "deleted";
30 
DeletedChannelsPreferenceController(Context context, NotificationBackend backend)31     public DeletedChannelsPreferenceController(Context context, NotificationBackend backend) {
32         super(context, backend);
33     }
34 
35     @Override
getPreferenceKey()36     public String getPreferenceKey() {
37         return KEY_DELETED;
38     }
39 
40     @Override
isAvailable()41     public boolean isAvailable() {
42         if (!super.isAvailable()) {
43             return false;
44         }
45         // only visible on app screen
46         if (mChannel != null || hasValidGroup()) {
47             return false;
48         }
49 
50         return mBackend.getDeletedChannelCount(mAppRow.pkg, mAppRow.uid) > 0;
51     }
52 
updateState(Preference preference)53     public void updateState(Preference preference) {
54         if (mAppRow != null) {
55             int deletedChannelCount = mBackend.getDeletedChannelCount(mAppRow.pkg, mAppRow.uid);
56             preference.setTitle(mContext.getResources().getQuantityString(
57                     R.plurals.deleted_channels, deletedChannelCount, deletedChannelCount));
58         }
59         preference.setSelectable(false);
60     }
61 }
62