1 /*
2  * Copyright 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 androidx.recyclerview.selection;
18 
19 import static androidx.annotation.RestrictTo.Scope.LIBRARY;
20 
21 import android.graphics.Point;
22 
23 import androidx.annotation.RestrictTo;
24 
25 import org.jspecify.annotations.NonNull;
26 
27 /**
28  * Provides support for auto-scrolling a view.
29  *
30  */
31 @RestrictTo(LIBRARY)
32 public abstract class AutoScroller {
33 
34     /**
35      * Resets state of the scroller. Call this when the user activity that is driving
36      * auto-scrolling is done.
37      */
reset()38     public abstract void reset();
39 
40     /**
41      * Processes a new input location.
42      * @param location
43      */
scroll(@onNull Point location)44     public abstract void scroll(@NonNull Point location);
45 }
46