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.app;
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 import com.android.settings.notification.NotificationBackend;
26 
27 public class DeletedChannelsPreferenceController extends NotificationPreferenceController
28         implements PreferenceControllerMixin {
29 
30     private static final String  KEY_DELETED = "deleted";
31 
DeletedChannelsPreferenceController(Context context, NotificationBackend backend)32     public DeletedChannelsPreferenceController(Context context, NotificationBackend backend) {
33         super(context, backend);
34     }
35 
36     @Override
getPreferenceKey()37     public String getPreferenceKey() {
38         return KEY_DELETED;
39     }
40 
41     @Override
isAvailable()42     public boolean isAvailable() {
43         if (!super.isAvailable()) {
44             return false;
45         }
46         // only visible on app screen
47         if (mChannel != null || hasValidGroup()) {
48             return false;
49         }
50 
51         return mBackend.getDeletedChannelCount(mAppRow.pkg, mAppRow.uid) > 0;
52     }
53 
54     @Override
isIncludedInFilter()55     boolean isIncludedInFilter() {
56         return false;
57     }
58 
updateState(Preference preference)59     public void updateState(Preference preference) {
60         if (mAppRow != null) {
61             int deletedChannelCount = mBackend.getDeletedChannelCount(mAppRow.pkg, mAppRow.uid);
62             preference.setTitle(mContext.getResources().getQuantityString(
63                     R.plurals.deleted_channels, deletedChannelCount, deletedChannelCount));
64         }
65         preference.setSelectable(false);
66     }
67 }
68