/*
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* Copyright (C) 2017 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License
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*/
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package com.android.systemui.statusbar;
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import com.android.systemui.statusbar.notification.row.ActivatableNotificationView;
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import com.android.systemui.statusbar.notification.row.ExpandableNotificationRow;
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/**
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* An abstraction of something that presents notifications, e.g. StatusBar. Contains methods
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* for both querying the state of the system (some modularised piece of functionality may
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* want to act differently based on e.g. whether the presenter is visible to the user or not) and
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* for affecting the state of the system (e.g. starting an intent, given that the presenter may
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* want to perform some action before doing so).
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*/
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public interface NotificationPresenter extends ExpandableNotificationRow.OnExpandClickListener,
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ActivatableNotificationView.OnActivatedListener {
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/**
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* Returns true if the presenter is not visible. For example, it may not be necessary to do
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* animations if this returns true.
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*/
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boolean isPresenterFullyCollapsed();
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/**
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* Refresh or remove lockscreen artwork from media metadata or the lockscreen wallpaper.
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*/
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void updateMediaMetaData(boolean metaDataChanged, boolean allowEnterAnimation);
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/**
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* Called when the current user changes.
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* @param newUserId new user id
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*/
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void onUserSwitched(int newUserId);
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/**
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* @return true iff the device is in vr mode
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*/
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boolean isDeviceInVrMode();
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/**
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* Updates the visual representation of the notifications.
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*/
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void updateNotificationViews();
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/**
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* Returns the maximum number of notifications to show while locked.
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*
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* @param recompute whether something has changed that means we should recompute this value
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* @return the maximum number of notifications to show while locked
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*/
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int getMaxNotificationsWhileLocked(boolean recompute);
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/**
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* True if the presenter is currently locked.
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*/
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boolean isPresenterLocked();
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/**
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* Called when the row states are updated by {@link NotificationViewHierarchyManager}.
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*/
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void onUpdateRowStates();
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/**
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* @return true if the shade is collapsing.
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*/
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boolean isCollapsing();
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}
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