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assets/library/sticky/jquery.sticky.js
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assets/library/sticky/jquery.sticky.js
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/**
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* Sticky Plugin v1.0.2 for jQuery
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* =======================================
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*
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* Author: Anthony Garand
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*
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* Improvements by German M. Bravo (Kronuz) and Ruud Kamphuis (ruudk)
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* Improvements by Leonardo C. Daronco (daronco)
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* Created: 2/14/2011
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* Date: 16/04/2015
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* Website: http://labs.anthonygarand.com/sticky
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*
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* Description: Makes an element on the page stick on the screen as you scroll
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* It will only set the 'top' and 'position' of your element, you
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* might need to adjust the width in some cases.
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*/
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(function($) {
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var slice = Array.prototype.slice; // save ref to original slice()
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var splice = Array.prototype.splice; // save ref to original slice()
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var defaults = {
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topSpacing: 0,
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bottomSpacing: 0,
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className: 'is-sticky',
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wrapperClassName: 'sticky-wrapper',
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center: false,
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getWidthFrom: '',
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widthFromWrapper: true, // works only when .getWidthFrom is empty
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responsiveWidth: false
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},
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$window = $(window),
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$document = $(document),
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sticked = [],
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windowHeight = $window.height(),
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scroller = function() {
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var scrollTop = $window.scrollTop(),
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documentHeight = $document.height(),
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dwh = documentHeight - windowHeight,
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extra = (scrollTop > dwh) ? dwh - scrollTop : 0;
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for (var i = 0; i < sticked.length; i++) {
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var s = sticked[i],
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elementTop = s.stickyWrapper.offset().top,
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etse = elementTop - s.topSpacing - extra;
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if (scrollTop <= etse) {
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if (s.currentTop !== null) {
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s.stickyElement
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.css({
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'width': '',
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'position': '',
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'top': ''
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});
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s.stickyElement.parent().removeClass(s.className);
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s.stickyElement.trigger('sticky-end', [s]);
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s.currentTop = null;
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}
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}
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else {
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var newTop = documentHeight - s.stickyElement.outerHeight()
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- s.topSpacing - s.bottomSpacing - scrollTop - extra;
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if (newTop < 0) {
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newTop = newTop + s.topSpacing;
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} else {
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newTop = s.topSpacing;
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}
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if (s.currentTop != newTop) {
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var newWidth;
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if ( s.getWidthFrom ) {
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newWidth = $(s.getWidthFrom).width() || null;
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}
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else if(s.widthFromWrapper) {
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newWidth = s.stickyWrapper.width();
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}
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if ( newWidth == null ) {
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newWidth = s.stickyElement.width();
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}
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s.stickyElement
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.css('width', newWidth)
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.css('position', 'fixed')
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.css('top', newTop);
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s.stickyElement.parent().addClass(s.className);
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if (s.currentTop === null) {
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s.stickyElement.trigger('sticky-start', [s]);
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} else {
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// sticky is started but it have to be repositioned
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s.stickyElement.trigger('sticky-update', [s]);
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}
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if (s.currentTop === s.topSpacing && s.currentTop > newTop || s.currentTop === null && newTop < s.topSpacing) {
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// just reached bottom || just started to stick but bottom is already reached
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s.stickyElement.trigger('sticky-bottom-reached', [s]);
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} else if(s.currentTop !== null && newTop === s.topSpacing && s.currentTop < newTop) {
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// sticky is started && sticked at topSpacing && overflowing from top just finished
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s.stickyElement.trigger('sticky-bottom-unreached', [s]);
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}
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s.currentTop = newTop;
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}
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}
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}
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},
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resizer = function() {
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windowHeight = $window.height();
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for (var i = 0; i < sticked.length; i++) {
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var s = sticked[i];
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var newWidth = null;
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if ( s.getWidthFrom ) {
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if ( s.responsiveWidth === true ) {
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newWidth = $(s.getWidthFrom).width();
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}
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}
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else if(s.widthFromWrapper) {
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newWidth = s.stickyWrapper.width();
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}
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if ( newWidth != null ) {
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s.stickyElement.css('width', newWidth);
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}
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}
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},
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methods = {
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init: function(options) {
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var o = $.extend({}, defaults, options);
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return this.each(function() {
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var stickyElement = $(this);
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var stickyId = stickyElement.attr('id');
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var stickyHeight = stickyElement.outerHeight();
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var wrapperId = stickyId ? stickyId + '-' + defaults.wrapperClassName : defaults.wrapperClassName
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var wrapper = $('<div></div>')
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.attr('id', wrapperId)
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.addClass(o.wrapperClassName);
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stickyElement.wrapAll(wrapper);
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var stickyWrapper = stickyElement.parent();
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if (o.center) {
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stickyWrapper.css({width:stickyElement.outerWidth(),marginLeft:"auto",marginRight:"auto"});
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}
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if (stickyElement.css("float") == "right") {
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stickyElement.css({"float":"none"}).parent().css({"float":"right"});
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}
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stickyWrapper.css('height', stickyHeight);
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o.stickyElement = stickyElement;
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o.stickyWrapper = stickyWrapper;
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o.currentTop = null;
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sticked.push(o);
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});
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},
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update: scroller,
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unstick: function(options) {
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return this.each(function() {
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var that = this;
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var unstickyElement = $(that);
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var removeIdx = -1;
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var i = sticked.length;
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while ( i-- > 0 )
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{
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if (sticked[i].stickyElement.get(0) === that)
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{
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splice.call(sticked,i,1);
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removeIdx = i;
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}
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}
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if(removeIdx != -1)
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{
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unstickyElement.unwrap();
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unstickyElement
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.css({
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'width': '',
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'position': '',
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'top': '',
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'float': ''
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})
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;
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}
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});
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}
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};
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// should be more efficient than using $window.scroll(scroller) and $window.resize(resizer):
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if (window.addEventListener) {
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window.addEventListener('scroll', scroller, false);
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window.addEventListener('resize', resizer, false);
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} else if (window.attachEvent) {
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window.attachEvent('onscroll', scroller);
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window.attachEvent('onresize', resizer);
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}
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$.fn.sticky = function(method) {
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if (methods[method]) {
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return methods[method].apply(this, slice.call(arguments, 1));
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} else if (typeof method === 'object' || !method ) {
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return methods.init.apply( this, arguments );
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} else {
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$.error('Method ' + method + ' does not exist on jQuery.sticky');
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}
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};
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$.fn.unstick = function(method) {
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if (methods[method]) {
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return methods[method].apply(this, slice.call(arguments, 1));
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} else if (typeof method === 'object' || !method ) {
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return methods.unstick.apply( this, arguments );
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} else {
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$.error('Method ' + method + ' does not exist on jQuery.sticky');
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}
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};
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$(function() {
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setTimeout(scroller, 0);
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});
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})(jQuery);
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18
assets/library/sticky/jquery.sticky.min.js
vendored
Normal file
18
assets/library/sticky/jquery.sticky.min.js
vendored
Normal file
@ -0,0 +1,18 @@
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/**
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* Sticky Plugin v1.0.2 for jQuery
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=======================================
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*
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* Author: Anthony Garand
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*
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* Improvements by German M. Bravo (Kronuz) and Ruud Kamphuis (ruudk)
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* Improvements by Leonardo C. Daronco (daronco)
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* Created: 2/14/2011
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* Date: 16/04/2015
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* Website: http://labs.anthonygarand.com/sticky
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*
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* Description: Makes an element on the page stick on the screen as you scroll
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* It will only set the 'top' and 'position' of your element, you
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* might need to adjust the width in some cases.
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*/
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!function(t){var e=Array.prototype.slice,i=Array.prototype.splice,r={topSpacing:0,bottomSpacing:0,className:"is-sticky",wrapperClassName:"sticky-wrapper",center:!1,getWidthFrom:"",widthFromWrapper:!0,responsiveWidth:!1},n=t(window),s=t(document),o=[],c=n.height(),a=function(){for(var e=n.scrollTop(),i=s.height(),r=i-c,a=e>r?r-e:0,p=0;p<o.length;p++){var l=o[p];if(e<=l.stickyWrapper.offset().top-l.topSpacing-a)null!==l.currentTop&&(l.stickyElement.css({width:"",position:"",top:""}),l.stickyElement.parent().removeClass(l.className),l.stickyElement.trigger("sticky-end",[l]),l.currentTop=null);else{var d,h=i-l.stickyElement.outerHeight()-l.topSpacing-l.bottomSpacing-e-a;if(h<0?h+=l.topSpacing:h=l.topSpacing,l.currentTop!=h)l.getWidthFrom?d=t(l.getWidthFrom).width()||null:l.widthFromWrapper&&(d=l.stickyWrapper.width()),null==d&&(d=l.stickyElement.width()),l.stickyElement.css("width",d).css("position","fixed").css("top",h),l.stickyElement.parent().addClass(l.className),null===l.currentTop?l.stickyElement.trigger("sticky-start",[l]):l.stickyElement.trigger("sticky-update",[l]),l.currentTop===l.topSpacing&&l.currentTop>h||null===l.currentTop&&h<l.topSpacing?l.stickyElement.trigger("sticky-bottom-reached",[l]):null!==l.currentTop&&h===l.topSpacing&&l.currentTop<h&&l.stickyElement.trigger("sticky-bottom-unreached",[l]),l.currentTop=h}}},p=function(){c=n.height();for(var e=0;e<o.length;e++){var i=o[e],r=null;i.getWidthFrom?!0===i.responsiveWidth&&(r=t(i.getWidthFrom).width()):i.widthFromWrapper&&(r=i.stickyWrapper.width()),null!=r&&i.stickyElement.css("width",r)}},l={init:function(e){var i=t.extend({},r,e);return this.each(function(){var e=t(this),n=e.attr("id"),s=e.outerHeight(),c=n?n+"-"+r.wrapperClassName:r.wrapperClassName,a=t("<div></div>").attr("id",c).addClass(i.wrapperClassName);e.wrapAll(a);var p=e.parent();i.center&&p.css({width:e.outerWidth(),marginLeft:"auto",marginRight:"auto"}),"right"==e.css("float")&&e.css({float:"none"}).parent().css({float:"right"}),p.css("height",s),i.stickyElement=e,i.stickyWrapper=p,i.currentTop=null,o.push(i)})},update:a,unstick:function(e){return this.each(function(){for(var e=t(this),r=-1,n=o.length;n-- >0;)o[n].stickyElement.get(0)===this&&(i.call(o,n,1),r=n);-1!=r&&(e.unwrap(),e.css({width:"",position:"",top:"",float:""}))})}};window.addEventListener?(window.addEventListener("scroll",a,!1),window.addEventListener("resize",p,!1)):window.attachEvent&&(window.attachEvent("onscroll",a),window.attachEvent("onresize",p)),t.fn.sticky=function(i){return l[i]?l[i].apply(this,e.call(arguments,1)):"object"!=typeof i&&i?void t.error("Method "+i+" does not exist on jQuery.sticky"):l.init.apply(this,arguments)},t.fn.unstick=function(i){return l[i]?l[i].apply(this,e.call(arguments,1)):"object"!=typeof i&&i?void t.error("Method "+i+" does not exist on jQuery.sticky"):l.unstick.apply(this,arguments)},t(function(){setTimeout(a,0)})}(jQuery);
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