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.wallpaper.picker;
17 
18 import androidx.annotation.Nullable;
19 
20 /**
21  * Interface for a presenter class which displays the currently set wallpaper(s) in the view.
22  */
23 public interface CurrentWallpaperBottomSheetPresenter {
24     /**
25      * Sets whether to show the currently set wallpaper(s) by expanding the BottomSheet (true) or to
26      * hide them by collapsing the BottomSheet (false).
27      */
setCurrentWallpapersExpanded(boolean expanded)28     void setCurrentWallpapersExpanded(boolean expanded);
29 
30     /**
31      * Refreshes the currently set wallpaper.
32      */
refreshCurrentWallpapers(@ullable RefreshListener refreshListener)33     void refreshCurrentWallpapers(@Nullable RefreshListener refreshListener);
34 
35     /**
36      * A listener which is notified when a refresh of the current wallpapers UI is completed.
37      */
38     interface RefreshListener {
onCurrentWallpaperRefreshed()39         void onCurrentWallpaperRefreshed();
40     }
41 }
42