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1   /*
2    * Copyright 2010 Daniel Kurka
3    * 
4    * Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except
5    * in compliance with the License. You may obtain a copy of the License at
6    * 
7    * http://www.apache.org/licenses/LICENSE-2.0
8    * 
9    * Unless required by applicable law or agreed to in writing, software distributed under the License
10   * is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express
11   * or implied. See the License for the specific language governing permissions and limitations under
12   * the License.
13   */
14  package com.googlecode.mgwt.dom.client.event.mouse;
15  
16  import com.google.gwt.core.client.JsArray;
17  import com.google.gwt.dom.client.NativeEvent;
18  import com.google.gwt.event.dom.client.MouseUpEvent;
19  import com.googlecode.mgwt.collection.client.JsLightArray;
20  import com.googlecode.mgwt.collection.shared.LightArray;
21  import com.googlecode.mgwt.dom.client.event.touch.JsTouch;
22  import com.googlecode.mgwt.dom.client.event.touch.Touch;
23  import com.googlecode.mgwt.dom.client.event.touch.TouchEndEvent;
24  
25  /**
26   * A simulated TouchEndEvent is really a mouseup event. This is used mostly in dev mode and for
27   * blackberry devices to handle them equally to real touch devices
28   * 
29   * @author Daniel Kurka
30   * @version $Id: $
31   */
32  public class SimulatedTouchEndEvent extends TouchEndEvent {
33  
34    private final int x;
35    private final int y;
36    private int x_start;
37    private int y_start;
38    private boolean multiTouch;
39  
40    /**
41     * Construct a simluated TouchEndEvent from a {@link MouseUpEvent}
42     * 
43     * @param mouseUpEvent the data for the simulated event;
44     * @param multiTouch
45     */
46    public SimulatedTouchEndEvent(MouseUpEvent mouseUpEvent, boolean multiTouch) {
47      x = mouseUpEvent.getClientX();
48      y = mouseUpEvent.getClientY();
49      this.multiTouch = multiTouch;
50      if (multiTouch) {
51        int[] start = MultiTouchMouseEmulator.getTouchStart();
52        x_start = start[0];
53        y_start = start[1];
54      }
55      setNativeEvent(mouseUpEvent.getNativeEvent());
56      setSource(mouseUpEvent.getSource());
57    }
58  
59    @Override
60    public LightArray<Touch> getTouches() {
61      return new JsLightArray<Touch>(touches(getNativeEvent()));
62    }
63  
64    @Override
65    public LightArray<Touch> getChangedTouches() {
66      return new JsLightArray<Touch>(changedTouches(getNativeEvent()));
67    }
68  
69    /** {@inheritDoc} */
70    @Override
71    protected native JsArray<JsTouch> touches(NativeEvent nativeEvent) /*-{
72  		var toucharray = [];
73  		if (this.@com.googlecode.mgwt.dom.client.event.mouse.SimulatedTouchEndEvent::multiTouch) {
74  			var touch_start = {};
75  			touch_start.pageX = this.@com.googlecode.mgwt.dom.client.event.mouse.SimulatedTouchEndEvent::x_start;
76  			touch_start.pageY = this.@com.googlecode.mgwt.dom.client.event.mouse.SimulatedTouchEndEvent::y_start;
77  			toucharray.push(touch_start);
78  		}
79  
80  		return toucharray;
81    }-*/;
82  
83    /** {@inheritDoc} */
84    @Override
85    protected native JsArray<JsTouch> changedTouches(NativeEvent nativeEvent) /*-{
86  
87  		var toucharray = [];
88  
89  		if (this.@com.googlecode.mgwt.dom.client.event.mouse.SimulatedTouchEndEvent::multiTouch) {
90  			var touch_start = {};
91  			touch_start.pageX = this.@com.googlecode.mgwt.dom.client.event.mouse.SimulatedTouchEndEvent::x_start;
92  			touch_start.pageY = this.@com.googlecode.mgwt.dom.client.event.mouse.SimulatedTouchEndEvent::y_start;
93  			toucharray.push(touch_start);
94  		} else {
95  			var touch = {};
96  			touch.pageX = this.@com.googlecode.mgwt.dom.client.event.mouse.SimulatedTouchEndEvent::x;
97  			touch.pageY = this.@com.googlecode.mgwt.dom.client.event.mouse.SimulatedTouchEndEvent::y;
98  			toucharray.push(touch);
99  		}
100 
101 		return toucharray;
102   }-*/;
103 }