1/*
2 * Copyright (C) 2015 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
17package com.android.systemui.classifier;
18
19public class DirectionEvaluator {
20    public static float evaluate(float xDiff, float yDiff, int type) {
21        float falsingEvaluation = 5.5f;
22        boolean vertical = Math.abs(yDiff) >= Math.abs(xDiff);
23        switch (type) {
24            case Classifier.QUICK_SETTINGS:
25            case Classifier.NOTIFICATION_DRAG_DOWN:
26                if (!vertical || yDiff <= 0.0) {
27                    return falsingEvaluation;
28                }
29                break;
30            case Classifier.NOTIFICATION_DISMISS:
31                if (vertical) {
32                    return falsingEvaluation;
33                }
34                break;
35            case Classifier.UNLOCK:
36                if (!vertical || yDiff >= 0.0) {
37                    return falsingEvaluation;
38                }
39                break;
40            case Classifier.LEFT_AFFORDANCE:
41                if (xDiff < 0.0 && yDiff > 0.0) {
42                    return falsingEvaluation;
43                }
44                break;
45            case Classifier.RIGHT_AFFORDANCE:
46                if (xDiff > 0.0 && yDiff > 0.0) {
47                    return falsingEvaluation;
48                }
49            default:
50                break;
51        }
52        return 0.0f;
53    }
54}
55