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 package com.android.systemui.statusbar; 17 18 import com.android.systemui.statusbar.notification.row.ActivatableNotificationView; 19 import com.android.systemui.statusbar.notification.row.ExpandableNotificationRow; 20 21 /** 22 * An abstraction of something that presents notifications, e.g. StatusBar. Contains methods 23 * for both querying the state of the system (some modularised piece of functionality may 24 * want to act differently based on e.g. whether the presenter is visible to the user or not) and 25 * for affecting the state of the system (e.g. starting an intent, given that the presenter may 26 * want to perform some action before doing so). 27 */ 28 public interface NotificationPresenter extends ExpandableNotificationRow.OnExpandClickListener, 29 ActivatableNotificationView.OnActivatedListener { 30 /** 31 * Returns true if the presenter is not visible. For example, it may not be necessary to do 32 * animations if this returns true. 33 */ isPresenterFullyCollapsed()34 boolean isPresenterFullyCollapsed(); 35 36 /** 37 * Refresh or remove lockscreen artwork from media metadata or the lockscreen wallpaper. 38 */ updateMediaMetaData(boolean metaDataChanged, boolean allowEnterAnimation)39 void updateMediaMetaData(boolean metaDataChanged, boolean allowEnterAnimation); 40 41 /** 42 * Called when the current user changes. 43 * @param newUserId new user id 44 */ onUserSwitched(int newUserId)45 void onUserSwitched(int newUserId); 46 47 /** 48 * @return true iff the device is in vr mode 49 */ isDeviceInVrMode()50 boolean isDeviceInVrMode(); 51 52 /** 53 * Updates the visual representation of the notifications. 54 */ updateNotificationViews()55 void updateNotificationViews(); 56 57 /** 58 * Returns the maximum number of notifications to show while locked. 59 * 60 * @param recompute whether something has changed that means we should recompute this value 61 * @return the maximum number of notifications to show while locked 62 */ getMaxNotificationsWhileLocked(boolean recompute)63 int getMaxNotificationsWhileLocked(boolean recompute); 64 65 /** 66 * True if the presenter is currently locked. 67 */ isPresenterLocked()68 boolean isPresenterLocked(); 69 70 /** 71 * Called when the row states are updated by {@link NotificationViewHierarchyManager}. 72 */ onUpdateRowStates()73 void onUpdateRowStates(); 74 75 /** 76 * @return true if the shade is collapsing. 77 */ isCollapsing()78 boolean isCollapsing(); 79 } 80