https://redlands-care.co.uk/wp-content/themes/uncode/library/js/lib/jquery.mousewheel.js?ver=1882933325

1/*! Copyright (c) 2011 Brandon Aaron (http://brandonaaron.net)
2 * Licensed under the MIT License (LICENSE.txt).
3 *
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 * Thanks to: Seamus Leahy for adding deltaX and deltaY
7 *
8 * Version: 3.0.6
9 *
10 * Requires: 1.2.2+
11 */
12(function($) {
13    var types = ['DOMMouseScroll', 'mousewheel'];
14    if ($.event.fixHooks) {
15        for (var i = types.length; i;) {
16            $.event.fixHooks[types[--i]] = $.event.mouseHooks;
17        }
18    }
19    $.event.special.mousewheel = {
20        setup: function() {
21            if (this.addEventListener) {
22                for (var i = types.length; i;) {
23                    this.addEventListener(types[--i], handler, false);
24                }
25            } else {
26                this.onmousewheel = handler;
27            }
28        },
29        teardown: function() {
30            if (this.removeEventListener) {
31                for (var i = types.length; i;) {
32                    this.removeEventListener(types[--i], handler, false);
33                }
34            } else {
35                this.onmousewheel = null;
36            }
37        }
38    };
39    $.fn.extend({
40        mousewheel: function(fn) {
41            return fn ? this.bind("mousewheel", fn) : this.trigger("mousewheel");
42        },
43        unmousewheel: function(fn) {
44            return this.unbind("mousewheel", fn);
45        }
46    });
47
48    function handler(event) {
49        var orgEvent = event || window.event,
50            args = [].slice.call(arguments, 1),
51            delta = 0,
52            returnValue = true,
53            deltaX = 0,
54            deltaY = 0;
55        event = $.event.fix(orgEvent);
56        event.type = "mousewheel";
57        // Old school scrollwheel delta
58        if (orgEvent.wheelDelta) {
59            delta = orgEvent.wheelDelta / 120;
60        }
61        if (orgEvent.detail) {
62            delta = -orgEvent.detail / 3;
63        }
64        // New school multidimensional scroll (touchpads) deltas
65        deltaY = delta;
66        // Gecko
67        if (orgEvent.axis !== undefined && orgEvent.axis === orgEvent.HORIZONTAL_AXIS) {
68            deltaY = 0;
69            deltaX = -1 * delta;
70        }
71        // Webkit
72        if (orgEvent.wheelDeltaY !== undefined) {
73            deltaY = orgEvent.wheelDeltaY / 120;
74        }
75        if (orgEvent.wheelDeltaX !== undefined) {
76            deltaX = -1 * orgEvent.wheelDeltaX / 120;
77        }
78        // Add event and delta to the front of the arguments
79        args.unshift(event, delta, deltaX, deltaY);
80        return ($.event.dispatch || $.event.handle).apply(this, args);
81    }
82})(jQuery);