https://www.myrrha.it/wp-content/themes/onetone/plugins/jquery.scrollTo.js?ver=1.4.14%20

1/*!
2 * jQuery.scrollTo
3 * Copyright (c) 2007-2014 Ariel Flesler - aflesler<a>gmail<d>com | http://flesler.blogspot.com
4 * Licensed under MIT
5 * http://flesler.blogspot.com/2007/10/jqueryscrollto.html
6 * @projectDescription Easy element scrolling using jQuery.
7 * @author Ariel Flesler
8 * @version 1.4.14
9 */
10;(function (define) {
11	'use strict';
12
13	define(['jquery'], function ($) {
14
15		var $scrollTo = $.scrollTo = function( target, duration, settings ) {
16			return $(window).scrollTo( target, duration, settings );
17		};
18
19		$scrollTo.defaults = {
20			axis:'xy',
21			duration: 0,
22			limit:true
23		};
24
25		// Returns the element that needs to be animated to scroll the window.
26		// Kept for backwards compatibility (specially for localScroll & serialScroll)
27		$scrollTo.window = function( scope ) {
28			return $(window)._scrollable();
29		};
30
31		// Hack, hack, hack :)
32		// Returns the real elements to scroll (supports window/iframes, documents and regular nodes)
33		$.fn._scrollable = function() {
34			return this.map(function() {
35				var elem = this,
36					isWin = !elem.nodeName || $.inArray( elem.nodeName.toLowerCase(), ['iframe','#document','html','body'] ) != -1;
37
38					if (!isWin)
39						return elem;
40
41				var doc = (elem.contentWindow || elem).document || elem.ownerDocument || elem;
42
43				return /webkit/i.test(navigator.userAgent) || doc.compatMode == 'BackCompat' ?
44					doc.body :
45					doc.documentElement;
46			});
47		};
48
49		$.fn.scrollTo = function( target, duration, settings ) {
50			if (typeof duration == 'object') {
51				settings = duration;
52				duration = 0;
53			}
54			if (typeof settings == 'function')
55				settings = { onAfter:settings };
56
57			if (target == 'max')
58				target = 9e9;
59
60			settings = $.extend( {}, $scrollTo.defaults, settings );
61			// Speed is still recognized for backwards compatibility
62			duration = duration || settings.duration;
63			// Make sure the settings are given right
64			settings.queue = settings.queue && settings.axis.length > 1;
65
66			if (settings.queue)
67				// Let's keep the overall duration
68				duration /= 2;
69			settings.offset = both( settings.offset );
70			settings.over = both( settings.over );
71
72			return this._scrollable().each(function() {
73				// Null target yields nothing, just like jQuery does
74				if (target == null) return;
75
76				var elem = this,
77					$elem = $(elem),
78					targ = target, toff, attr = {},
79					win = $elem.is('html,body');
80
81				switch (typeof targ) {
82					// A number will pass the regex
83					case 'number':
84					case 'string':
85						if (/^([+-]=?)?\d+(\.\d+)?(px|%)?$/.test(targ)) {
86							targ = both( targ );
87							// We are done
88							break;
89						}
90						// Relative/Absolute selector, no break!
91						targ = win ? $(targ) : $(targ, this);
92						if (!targ.length) return;
93					case 'object':
94						// DOMElement / jQuery
95						if (targ.is || targ.style)
96							// Get the real position of the target
97							toff = (targ = $(targ)).offset();
98				}
99
100				var offset = $.isFunction(settings.offset) && settings.offset(elem, targ) || settings.offset;
101
102				$.each( settings.axis.split(''), function( i, axis ) {
103					var Pos	= axis == 'x' ? 'Left' : 'Top',
104						pos = Pos.toLowerCase(),
105						key = 'scroll' + Pos,
106						old = elem[key],
107						max = $scrollTo.max(elem, axis);
108
109					if (toff) {// jQuery / DOMElement
110						attr[key] = toff[pos] + ( win ? 0 : old - $elem.offset()[pos] );
111
112						// If it's a dom element, reduce the margin
113						if (settings.margin) {
114							attr[key] -= parseInt(targ.css('margin'+Pos)) || 0;
115							attr[key] -= parseInt(targ.css('border'+Pos+'Width')) || 0;
116						}
117
118						attr[key] += offset[pos] || 0;
119
120						if(settings.over[pos])
121							// Scroll to a fraction of its width/height
122							attr[key] += targ[axis=='x'?'width':'height']() * settings.over[pos];
123					} else {
124						var val = targ[pos];
125						// Handle percentage values
126						attr[key] = val.slice && val.slice(-1) == '%' ?
127							parseFloat(val) / 100 * max
128							: val;
129					}
130
131					// Number or 'number'
132					if (settings.limit && /^\d+$/.test(attr[key]))
133						// Check the limits
134						attr[key] = attr[key] <= 0 ? 0 : Math.min( attr[key], max );
135
136					// Queueing axes
137					if (!i && settings.queue) {
138						// Don't waste time animating, if there's no need.
139						if (old != attr[key])
140							// Intermediate animation
141							animate( settings.onAfterFirst );
142						// Don't animate this axis again in the next iteration.
143						delete attr[key];
144					}
145				});
146
147				animate( settings.onAfter );
148
149				function animate( callback ) {
150					$elem.animate( attr, duration, settings.easing, callback && function() {
151						callback.call(this, targ, settings);
152					});
153				}
154			}).end();
155		};
156
157		// Max scrolling position, works on quirks mode

158		// It only fails (not too badly) on IE, quirks mode.
159		$scrollTo.max = function( elem, axis ) {
160			var Dim = axis == 'x' ? 'Width' : 'Height',
161				scroll = 'scroll'+Dim;
162
163			if (!$(elem).is('html,body'))
164				return elem[scroll] - $(elem)[Dim.toLowerCase()]();
165
166			var size = 'client' + Dim,
167				html = elem.ownerDocument.documentElement,
168				body = elem.ownerDocument.body;
169
170			return Math.max( html[scroll], body[scroll] ) - Math.min( html[size]  , body[size]   );
171		};
172
173		function both( val ) {
174			return $.isFunction(val) || $.isPlainObject(val) ? val : { top:val, left:val };
175		}
176
177		// AMD requirement
178		return $scrollTo;
179	})
180}(typeof define === 'function' && define.amd ? define : function (deps, factory) {
181	if (typeof module !== 'undefined' && module.exports) {
182		// Node
183		module.exports = factory(require('jquery'));
184	} else {
185		factory(jQuery);
186	}
187}));