Blazej Magnowski | 68d0c9b | 2015-09-18 17:25:55 -0700 | [diff] [blame] | 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 | |
| 17 | package com.android.systemui.classifier; |
| 18 | |
| 19 | import android.view.MotionEvent; |
| 20 | |
| 21 | /** |
| 22 | * A classifier which looks at the total number of traces in the whole gesture. |
| 23 | */ |
| 24 | public class PointerCountClassifier extends GestureClassifier { |
| 25 | private int mCount; |
| 26 | |
| 27 | public PointerCountClassifier(ClassifierData classifierData) { |
| 28 | mCount = 0; |
| 29 | } |
| 30 | |
| 31 | @Override |
Adrian Roos | 401caae | 2016-03-04 13:35:21 -0800 | [diff] [blame] | 32 | public String getTag() { |
| 33 | return "PTR_CNT"; |
| 34 | } |
| 35 | |
| 36 | @Override |
Blazej Magnowski | 68d0c9b | 2015-09-18 17:25:55 -0700 | [diff] [blame] | 37 | public void onTouchEvent(MotionEvent event) { |
| 38 | int action = event.getActionMasked(); |
| 39 | |
| 40 | if (action == MotionEvent.ACTION_DOWN) { |
| 41 | mCount = 1; |
| 42 | } |
| 43 | |
| 44 | if (action == MotionEvent.ACTION_POINTER_DOWN) { |
| 45 | ++mCount; |
| 46 | } |
| 47 | } |
| 48 | |
| 49 | @Override |
| 50 | public float getFalseTouchEvaluation(int type) { |
| 51 | return PointerCountEvaluator.evaluate(mCount); |
| 52 | } |
| 53 | } |