https://www.oranim.ac.il/_layouts/15/JQuery/jquery.mousewheel.js

1/* Copyright (c) 2006 Brandon Aaron ([email protected] || http://brandonaaron.net)
2 * Dual licensed under the MIT (http://www.opensource.org/licenses/mit-license.php)
3 * and GPL (http://www.opensource.org/licenses/gpl-license.php) licenses.
4 * Thanks to: http://adomas.org/javascript-mouse-wheel/ for some pointers.
5 * Thanks to: Mathias Bank(http://www.mathias-bank.de) for a scope bug fix.
6 *
7 * $LastChangedDate: 2007-12-20 09:02:08 -0600 (Thu, 20 Dec 2007) $
8 * $Rev: 4265 $
9 *
10 * Version: 3.0
11 * 
12 * Requires: $ 1.2.2+
13 */
14
15(function($) {
16
17$.event.special.mousewheel = {
18	setup: function() {
19		var handler = $.event.special.mousewheel.handler;
20		
21		// Fix pageX, pageY, clientX and clientY for mozilla
22		if ( $.browser.mozilla )
23			$(this).bind('mousemove.mousewheel', function(event) {
24				$.data(this, 'mwcursorposdata', {
25					pageX: event.pageX,
26					pageY: event.pageY,
27					clientX: event.clientX,
28					clientY: event.clientY
29				});
30			});
31	
32		if ( this.addEventListener )
33			this.addEventListener( ($.browser.mozilla ? 'DOMMouseScroll' : 'mousewheel'), handler, false);
34		else
35			this.onmousewheel = handler;
36	},
37	
38	teardown: function() {
39		var handler = $.event.special.mousewheel.handler;
40		
41		$(this).unbind('mousemove.mousewheel');
42		
43		if ( this.removeEventListener )
44			this.removeEventListener( ($.browser.mozilla ? 'DOMMouseScroll' : 'mousewheel'), handler, false);
45		else
46			this.onmousewheel = function(){};
47		
48		$.removeData(this, 'mwcursorposdata');
49	},
50	
51	handler: function(event) {
52		var args = Array.prototype.slice.call( arguments, 1 );
53		
54		event = $.event.fix(event || window.event);
55		// Get correct pageX, pageY, clientX and clientY for mozilla
56		$.extend( event, $.data(this, 'mwcursorposdata') || {} );
57		var delta = 0, returnValue = true;
58		
59		if ( event.wheelDelta ) delta = event.wheelDelta/120;
60		if ( event.detail     ) delta = -event.detail/3;
61//		if ( $.browser.opera  ) delta = -event.wheelDelta;
62		
63		event.data  = event.data || {};
64		event.type  = "mousewheel";
65		
66		// Add delta to the front of the arguments
67		args.unshift(delta);
68		// Add event to the front of the arguments
69		args.unshift(event);
70
71		return $.event.handle.apply(this, args);
72	}
73};
74
75$.fn.extend({
76	mousewheel: function(fn) {
77		return fn ? this.bind("mousewheel", fn) : this.trigger("mousewheel");
78	},
79	
80	unmousewheel: function(fn) {
81		return this.unbind("mousewheel", fn);
82	}
83});
84
85})(jQuery);