1 /*
2  * Copyright (C) 2014 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.test.uiautomator;
18 
19 import org.jspecify.annotations.NonNull;
20 
21 /** An enumeration used to specify the primary direction of certain gestures. */
22 public enum Direction {
23     LEFT, RIGHT, UP, DOWN;
24 
25     /** Returns the reverse of the given direction. */
reverse(@onNull Direction direction)26     public static @NonNull Direction reverse(@NonNull Direction direction) {
27         switch (direction) {
28             case LEFT:
29                 return RIGHT;
30             case RIGHT:
31                 return LEFT;
32             case UP:
33                 return DOWN;
34             case DOWN:
35                 return UP;
36             default:
37                 throw new AssertionError(direction);
38         }
39     }
40 }
41