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 static android.app.NotificationManager.IMPORTANCE_NONE; 20 21 import android.annotation.Nullable; 22 import android.app.NotificationChannel; 23 import android.app.NotificationChannelGroup; 24 import android.app.NotificationManager; 25 import android.content.Context; 26 import android.content.pm.PackageManager; 27 import android.os.UserManager; 28 import android.util.Log; 29 30 import androidx.preference.Preference; 31 32 import com.android.settingslib.RestrictedLockUtils; 33 import com.android.settingslib.core.AbstractPreferenceController; 34 35 import java.util.Objects; 36 37 /** 38 * Parent class for preferences appearing on notification setting pages at the app, 39 * notification channel group, or notification channel level. 40 */ 41 public abstract class NotificationPreferenceController extends AbstractPreferenceController { 42 private static final String TAG = "ChannelPrefContr"; 43 @Nullable 44 protected NotificationChannel mChannel; 45 @Nullable 46 protected NotificationChannelGroup mChannelGroup; 47 protected RestrictedLockUtils.EnforcedAdmin mAdmin; 48 protected NotificationBackend.AppRow mAppRow; 49 protected final NotificationManager mNm; 50 protected final NotificationBackend mBackend; 51 protected final Context mContext; 52 protected final UserManager mUm; 53 protected final PackageManager mPm; 54 protected Preference mPreference; 55 NotificationPreferenceController(Context context, NotificationBackend backend)56 public NotificationPreferenceController(Context context, NotificationBackend backend) { 57 super(context); 58 mContext = context; 59 mNm = (NotificationManager) mContext.getSystemService(Context.NOTIFICATION_SERVICE); 60 mBackend = backend; 61 mUm = (UserManager) mContext.getSystemService(Context.USER_SERVICE); 62 mPm = mContext.getPackageManager(); 63 } 64 65 /** 66 * Returns true if field's parent object is not blocked. 67 */ 68 @Override isAvailable()69 public boolean isAvailable() { 70 if (mAppRow == null) { 71 return false; 72 } 73 if (mAppRow.banned) { 74 return false; 75 } 76 if (mChannelGroup != null) { 77 if (mChannelGroup.isBlocked()) { 78 return false; 79 } 80 } 81 if (mChannel != null) { 82 return mChannel.getImportance() != IMPORTANCE_NONE; 83 } 84 return true; 85 } 86 onResume(NotificationBackend.AppRow appRow, @Nullable NotificationChannel channel, @Nullable NotificationChannelGroup group, RestrictedLockUtils.EnforcedAdmin admin)87 protected void onResume(NotificationBackend.AppRow appRow, 88 @Nullable NotificationChannel channel, @Nullable NotificationChannelGroup group, 89 RestrictedLockUtils.EnforcedAdmin admin) { 90 mAppRow = appRow; 91 mChannel = channel; 92 mChannelGroup = group; 93 mAdmin = admin; 94 } 95 checkCanBeVisible(int minImportanceVisible)96 protected boolean checkCanBeVisible(int minImportanceVisible) { 97 if (mChannel == null) { 98 Log.w(TAG, "No channel"); 99 return false; 100 } 101 102 int importance = mChannel.getImportance(); 103 if (importance == NotificationManager.IMPORTANCE_UNSPECIFIED) { 104 return true; 105 } 106 return importance >= minImportanceVisible; 107 } 108 saveChannel()109 protected void saveChannel() { 110 if (mChannel != null && mAppRow != null) { 111 mBackend.updateChannel(mAppRow.pkg, mAppRow.uid, mChannel); 112 } 113 } 114 isChannelBlockable()115 protected boolean isChannelBlockable() { 116 if (mChannel != null && mAppRow != null) { 117 if (mChannel.isImportanceLockedByCriticalDeviceFunction() 118 || mChannel.isImportanceLockedByOEM()) { 119 return mChannel.getImportance() == IMPORTANCE_NONE; 120 } 121 122 return mChannel.isBlockableSystem() || !mAppRow.systemApp 123 || mChannel.getImportance() == IMPORTANCE_NONE; 124 } 125 return false; 126 } 127 isChannelGroupBlockable()128 protected boolean isChannelGroupBlockable() { 129 if (mChannelGroup != null && mAppRow != null) { 130 if (!mAppRow.systemApp) { 131 return true; 132 } 133 134 return mChannelGroup.isBlocked(); 135 } 136 return false; 137 } 138 hasValidGroup()139 protected boolean hasValidGroup() { 140 return mChannelGroup != null; 141 } 142 isDefaultChannel()143 protected final boolean isDefaultChannel() { 144 if (mChannel == null) { 145 return false; 146 } 147 return Objects.equals(NotificationChannel.DEFAULT_CHANNEL_ID, mChannel.getId()); 148 } 149 } 150