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.incallui.answer.impl.classifier;
18
19import android.view.MotionEvent;
20
21/** A classifier which looks at the total number of traces in the whole gesture. */
22class PointerCountClassifier extends GestureClassifier {
23  private int mCount;
24
25  public PointerCountClassifier(ClassifierData classifierData) {
26    mCount = 0;
27  }
28
29  @Override
30  public String getTag() {
31    return "PTR_CNT";
32  }
33
34  @Override
35  public void onTouchEvent(MotionEvent event) {
36    int action = event.getActionMasked();
37
38    if (action == MotionEvent.ACTION_DOWN) {
39      mCount = 1;
40    }
41
42    if (action == MotionEvent.ACTION_POINTER_DOWN) {
43      ++mCount;
44    }
45  }
46
47  @Override
48  public float getFalseTouchEvaluation() {
49    return PointerCountEvaluator.evaluate(mCount);
50  }
51}
52