https://canadatattooshows.com/cms2t/res/js/jQuery/ui/jquery.ui.mouse.js

1/*!
2 * jQuery UI Mouse 1.8.16
3 *
4 * Copyright 2011, AUTHORS.txt (http://jqueryui.com/about)
5 * Dual licensed under the MIT or GPL Version 2 licenses.
6 * http://jquery.org/license
7 *
8 * http://docs.jquery.com/UI/Mouse
9 *
10 * Depends:
11 *	jquery.ui.widget.js
12 */
13(function( $, undefined ) {
14
15var mouseHandled = false;
16$( document ).mouseup( function( e ) {
17	mouseHandled = false;
18});
19
20$.widget("ui.mouse", {
21	options: {
22		cancel: ':input,option',
23		distance: 1,
24		delay: 0
25	},
26	_mouseInit: function() {
27		var self = this;
28
29		this.element
30			.bind('mousedown.'+this.widgetName, function(event) {
31				return self._mouseDown(event);
32			})
33			.bind('click.'+this.widgetName, function(event) {
34				if (true === $.data(event.target, self.widgetName + '.preventClickEvent')) {
35				    $.removeData(event.target, self.widgetName + '.preventClickEvent');
36					event.stopImmediatePropagation();
37					return false;
38				}
39			});
40
41		this.started = false;
42	},
43
44	// TODO: make sure destroying one instance of mouse doesn't mess with
45	// other instances of mouse
46	_mouseDestroy: function() {
47		this.element.unbind('.'+this.widgetName);
48	},
49
50	_mouseDown: function(event) {
51		// don't let more than one widget handle mouseStart
52		if( mouseHandled ) { return };
53
54		// we may have missed mouseup (out of window)
55		(this._mouseStarted && this._mouseUp(event));
56
57		this._mouseDownEvent = event;
58
59		var self = this,
60			btnIsLeft = (event.which == 1),
61			// event.target.nodeName works around a bug in IE 8 with
62			// disabled inputs (#7620)
63			elIsCancel = (typeof this.options.cancel == "string" && event.target.nodeName ? $(event.target).closest(this.options.cancel).length : false);
64		if (!btnIsLeft || elIsCancel || !this._mouseCapture(event)) {
65			return true;
66		}
67
68		this.mouseDelayMet = !this.options.delay;
69		if (!this.mouseDelayMet) {
70			this._mouseDelayTimer = setTimeout(function() {
71				self.mouseDelayMet = true;
72			}, this.options.delay);
73		}
74
75		if (this._mouseDistanceMet(event) && this._mouseDelayMet(event)) {
76			this._mouseStarted = (this._mouseStart(event) !== false);
77			if (!this._mouseStarted) {
78				event.preventDefault();
79				return true;
80			}
81		}
82
83		// Click event may never have fired (Gecko & Opera)
84		if (true === $.data(event.target, this.widgetName + '.preventClickEvent')) {
85			$.removeData(event.target, this.widgetName + '.preventClickEvent');
86		}
87
88		// these delegates are required to keep context
89		this._mouseMoveDelegate = function(event) {

90			return self._mouseMove(event);
91		};
92		this._mouseUpDelegate = function(event) {
93			return self._mouseUp(event);
94		};
95		$(document)
96			.bind('mousemove.'+this.widgetName, this._mouseMoveDelegate)
97			.bind('mouseup.'+this.widgetName, this._mouseUpDelegate);
98
99		event.preventDefault();
100		
101		mouseHandled = true;
102		return true;
103	},
104
105	_mouseMove: function(event) {
106		// IE mouseup check - mouseup happened when mouse was out of window
107		if ($.browser.msie && !(document.documentMode >= 9) && !event.button) {
108			return this._mouseUp(event);
109		}
110
111		if (this._mouseStarted) {
112			this._mouseDrag(event);
113			return event.preventDefault();
114		}
115
116		if (this._mouseDistanceMet(event) && this._mouseDelayMet(event)) {
117			this._mouseStarted =
118				(this._mouseStart(this._mouseDownEvent, event) !== false);
119			(this._mouseStarted ? this._mouseDrag(event) : this._mouseUp(event));
120		}
121
122		return !this._mouseStarted;
123	},
124
125	_mouseUp: function(event) {
126		$(document)
127			.unbind('mousemove.'+this.widgetName, this._mouseMoveDelegate)
128			.unbind('mouseup.'+this.widgetName, this._mouseUpDelegate);
129
130		if (this._mouseStarted) {
131			this._mouseStarted = false;
132
133			if (event.target == this._mouseDownEvent.target) {
134			    $.data(event.target, this.widgetName + '.preventClickEvent', true);
135			}
136
137			this._mouseStop(event);
138		}
139
140		return false;
141	},
142
143	_mouseDistanceMet: function(event) {
144		return (Math.max(
145				Math.abs(this._mouseDownEvent.pageX - event.pageX),
146				Math.abs(this._mouseDownEvent.pageY - event.pageY)
147			) >= this.options.distance
148		);
149	},
150
151	_mouseDelayMet: function(event) {
152		return this.mouseDelayMet;
153	},
154
155	// These are placeholder methods, to be overriden by extending plugin
156	_mouseStart: function(event) {},
157	_mouseDrag: function(event) {},
158	_mouseStop: function(event) {},
159	_mouseCapture: function(event) { return true; }
160});
161
162})(jQuery);