1 /*
2 * Copyright 2012 Daniel Kurka
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License"); you may not
5 * use this file except in compliance with the License. You may obtain a copy of
6 * 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, WITHOUT
12 * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
13 * License for the specific language governing permissions and limitations under
14 * the License.
15 */
16 package com.googlecode.mgwt.dom.client.recognizer.tap;
17
18 import com.google.gwt.event.shared.GwtEvent;
19 import com.googlecode.mgwt.collection.shared.LightArray;
20 import com.googlecode.mgwt.dom.client.event.touch.Touch;
21
22 /**
23 * A {@link MultiTapEvent} occurs if the taps multiple times on the screen
24 *
25 * @author Daniel Kurka
26 *
27 */
28 public class MultiTapEvent extends GwtEvent<MultiTapHandler> {
29
30 private static final GwtEvent.Type<MultiTapHandler> TYPE = new Type<MultiTapHandler>();
31
32 public static GwtEvent.Type<MultiTapHandler> getType() {
33 return TYPE;
34 }
35
36 private final int numberOfFingers;
37 private final LightArray<LightArray<Touch>> touchStarts;
38 private final int numberOfTaps;
39
40 /**
41 * Construct a Multitap event
42 *
43 * @param numberOfFingers the number of fingers that tapped on the screen
44 * @param numberOfTaps the number of times the screen was tapped
45 * @param touchStarts the position of the fingers that started the taps
46 */
47 public MultiTapEvent(int numberOfFingers, int numberOfTaps, LightArray<LightArray<Touch>> touchStarts) {
48 this.numberOfFingers = numberOfFingers;
49 this.numberOfTaps = numberOfTaps;
50 this.touchStarts = touchStarts;
51 }
52
53 /**
54 * get the number of fingers that tapped on the screen
55 *
56 * @return the number of fingers that tapped on the screen
57 */
58 public int getNumberOfFinders() {
59 return numberOfFingers;
60 }
61
62 /**
63 * get the position of the fingers that started the taps
64 *
65 * @return the position of the fingers that started the taps
66 */
67 public LightArray<LightArray<Touch>> getTouchStarts() {
68 return touchStarts;
69 }
70
71 /**
72 * get the number of times the screen was tapped
73 *
74 * @return the number of times the screen was tapped
75 */
76 public int getNumberOfTabs() {
77 return numberOfTaps;
78 }
79
80 /*
81 * (non-Javadoc)
82 * @see com.google.gwt.event.shared.GwtEvent#getAssociatedType()
83 */
84 @Override
85 public com.google.gwt.event.shared.GwtEvent.Type<MultiTapHandler> getAssociatedType() {
86 return TYPE;
87 }
88
89 /*
90 * (non-Javadoc)
91 * @see com.google.gwt.event.shared.GwtEvent#dispatch(com.google.gwt.event.shared.EventHandler)
92 */
93 @Override
94 protected void dispatch(MultiTapHandler handler) {
95 handler.onMultiTap(this);
96
97 }
98
99 }