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 static com.android.server.notification.Flags.notificationHideUnusedChannels; 20 21 import android.content.Context; 22 23 import androidx.preference.Preference; 24 25 import com.android.settings.R; 26 import com.android.settings.core.PreferenceControllerMixin; 27 import com.android.settings.notification.NotificationBackend; 28 import com.android.settingslib.utils.StringUtil; 29 30 public class DeletedChannelsPreferenceController extends NotificationPreferenceController 31 implements PreferenceControllerMixin { 32 33 private static final String KEY_DELETED = "deleted"; 34 DeletedChannelsPreferenceController(Context context, NotificationBackend backend)35 public DeletedChannelsPreferenceController(Context context, NotificationBackend backend) { 36 super(context, backend); 37 } 38 39 @Override getPreferenceKey()40 public String getPreferenceKey() { 41 return KEY_DELETED; 42 } 43 44 @Override isAvailable()45 public boolean isAvailable() { 46 if (!super.isAvailable()) { 47 return false; 48 } 49 if (notificationHideUnusedChannels()) { 50 return false; 51 } 52 // only visible on app screen 53 if (mChannel != null || hasValidGroup()) { 54 return false; 55 } 56 57 return mBackend.getDeletedChannelCount(mAppRow.pkg, mAppRow.uid) > 0; 58 } 59 60 @Override isIncludedInFilter()61 boolean isIncludedInFilter() { 62 return false; 63 } 64 updateState(Preference preference)65 public void updateState(Preference preference) { 66 if (preference.getParent() != null) { 67 preference.getParent().setVisible(true); 68 } 69 if (mAppRow != null) { 70 int deletedChannelCount = mBackend.getDeletedChannelCount(mAppRow.pkg, mAppRow.uid); 71 preference.setTitle(StringUtil.getIcuPluralsString(mContext, deletedChannelCount, 72 R.string.deleted_channels)); 73 } 74 preference.setSelectable(false); 75 } 76 } 77