https://www.ceresrecruitment.be/bundles/app/js/scrollto/jquery.scrollTo-1.4.2-min.js

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 1.4.11
9 */
10
11;(function(plugin) {
12    // AMD Support
13    if (typeof define === 'function' && define.amd) {
14        define(['jquery'], plugin);
15    } else {
16        plugin(jQuery);
17    }
18}(function($) {
19
20  var $scrollTo = $.scrollTo = function( target, duration, settings ) {
21    return $(window).scrollTo( target, duration, settings );
22  };
23
24  $scrollTo.defaults = {
25    axis:'xy',
26    duration: parseFloat($.fn.jquery) >= 1.3 ? 0 : 1,
27    limit:true
28  };
29
30  // Returns the element that needs to be animated to scroll the window.
31  // Kept for backwards compatibility (specially for localScroll & serialScroll)
32  $scrollTo.window = function( scope ) {
33    return $(window)._scrollable();
34  };
35
36  // Hack, hack, hack :)
37  // Returns the real elements to scroll (supports window/iframes, documents and regular nodes)
38  $.fn._scrollable = function() {
39    return this.map(function() {
40      var elem = this,
41        isWin = !elem.nodeName || $.inArray( elem.nodeName.toLowerCase(), ['iframe','#document','html','body'] ) != -1;
42
43        if (!isWin)
44          return elem;
45
46      var doc = (elem.contentWindow || elem).document || elem.ownerDocument || elem;
47
48      return /webkit/i.test(navigator.userAgent) || doc.compatMode == 'BackCompat' ?
49        doc.body :
50        doc.documentElement;
51    });
52  };
53
54  $.fn.scrollTo = function( target, duration, settings ) {
55    if (typeof duration == 'object') {
56      settings = duration;
57      duration = 0;
58    }
59    if (typeof settings == 'function')
60      settings = { onAfter:settings };
61
62    if (target == 'max')
63      target = 9e9;
64
65    settings = $.extend( {}, $scrollTo.defaults, settings );
66    // Speed is still recognized for backwards compatibility
67    duration = duration || settings.duration;
68    // Make sure the settings are given right
69    settings.queue = settings.queue && settings.axis.length > 1;
70
71    if (settings.queue)
72      // Let's keep the overall duration
73      duration /= 2;
74    settings.offset = both( settings.offset );
75    settings.over = both( settings.over );
76
77    return this._scrollable().each(function() {
78      // Null target yields nothing, just like jQuery does
79      if (target == null) return;
80
81      var elem = this,
82        $elem = $(elem),
83        targ = target, toff, attr = {},
84        win = $elem.is('html,body');
85
86      switch (typeof targ) {
87        // A number will pass the regex
88        case 'number':
89        case 'string':
90          if (/^([+-]=?)?\d+(\.\d+)?(px|%)?$/.test(targ)) {
91            targ = both( targ );
92            // We are done
93            break;
94          }
95          // Relative selector, no break!
96          targ = $(targ,this);
97          if (!targ.length) return;
98        case 'object':
99          // DOMElement / jQuery
100          if (targ.is || targ.style)
101            // Get the real position of the target
102            toff = (targ = $(targ)).offset();
103      }
104      
105      var offset = $.isFunction(settings.offset) && settings.offset(elem, targ) || settings.offset;
106      
107      $.each( settings.axis.split(''), function( i, axis ) {
108        var Pos = axis == 'x' ? 'Left' : 'Top',
109          pos = Pos.toLowerCase(),
110          key = 'scroll' + Pos,
111          old = elem[key],
112          max = $scrollTo.max(elem, axis);
113
114        if (toff) {// jQuery / DOMElement
115          attr[key] = toff[pos] + ( win ? 0 : old - $elem.offset()[pos] );
116
117          // If it's a dom element, reduce the margin
118          if (settings.margin) {
119            attr[key] -= parseInt(targ.css('margin'+Pos)) || 0;
120            attr[key] -= parseInt(targ.css('border'+Pos+'Width')) || 0;
121          }
122
123          attr[key] += offset[pos] || 0;
124
125          if(settings.over[pos])
126            // Scroll to a fraction of its width/height
127            attr[key] += targ[axis=='x'?'width':'height']() * settings.over[pos];
128        } else {
129          var val = targ[pos];
130          // Handle percentage values
131          attr[key] = val.slice && val.slice(-1) == '%' ?
132            parseFloat(val) / 100 * max
133            : val;
134        }
135
136        // Number or 'number'
137        if (settings.limit && /^\d+$/.test(attr[key]))
138          // Check the limits
139          attr[key] = attr[key] <= 0 ? 0 : Math.min( attr[key], max );
140
141        // Queueing axes
142        if (!i && settings.queue) {
143          // Don't waste time animating, if there's no need.
144          if (old != attr[key])
145            // Intermediate animation
146            animate( settings.onAfterFirst );
147          // Don't animate this axis again in the next iteration.
148          delete attr[key];
149        }
150      });
151
152      animate( settings.onAfter );
153
154      function animate( callback ) {
155        $elem.animate( attr, duration, settings.easing, callback && function() {
156          callback.call(this, targ, settings);
157        });
158      };
159
160    }).end();
161  };
162
163  // Max scrolling position, works on quirks mode

164  // It only fails (not too badly) on IE, quirks mode.
165  $scrollTo.max = function( elem, axis ) {
166    var Dim = axis == 'x' ? 'Width' : 'Height',
167      scroll = 'scroll'+Dim;
168
169    if (!$(elem).is('html,body'))
170      return elem[scroll] - $(elem)[Dim.toLowerCase()]();
171
172    var size = 'client' + Dim,
173      html = elem.ownerDocument.documentElement,
174      body = elem.ownerDocument.body;
175
176    return Math.max( html[scroll], body[scroll] )
177       - Math.min( html[size]  , body[size]   );
178  };
179
180  function both( val ) {
181    return $.isFunction(val) || typeof val == 'object' ? val : { top:val, left:val };
182  };
183
184    // AMD requirement
185    return $scrollTo;
186}));