// Sticky Plugin v1.0.2 for jQuery // ============= // Author: Anthony Garand // Improvements by German M. Bravo (Kronuz) and Ruud Kamphuis (ruudk) // Improvements by Leonardo C. Daronco (daronco) // Created: 2/14/2011 // Date: 16/04/2015 // Website: http://labs.anthonygarand.com/sticky // Description: Makes an element on the page stick on the screen as you scroll // It will only set the 'top' and 'position' of your element, you // might need to adjust the width in some cases. (function($) { var slice = Array.prototype.slice; // save ref to original slice() var splice = Array.prototype.splice; // save ref to original slice() var defaults = { topSpacing: 0, bottomSpacing: 0, className: 'is-sticky', wrapperClassName: 'sticky-wrapper', center: false, getWidthFrom: '', widthFromWrapper: true, // works only when .getWidthFrom is empty responsiveWidth: false }, $window = $(window), $document = $(document), sticked = [], windowHeight = $window.height(), scroller = function() { var scrollTop = $window.scrollTop(), documentHeight = $document.height(), dwh = documentHeight - windowHeight, extra = (scrollTop > dwh) ? dwh - scrollTop : 0; for (var i = 0; i < sticked.length; i++) { var s = sticked[i], elementTop = s.stickyWrapper.offset().top, etse = elementTop - s.topSpacing - extra; if (scrollTop <= etse) { if (s.currentTop !== null) { s.stickyElement .css({ 'width': '', 'position': '', 'top': '' }); s.stickyElement.parent().removeClass(s.className); s.stickyElement.trigger('sticky-end', [s]); s.currentTop = null; } } else { var newTop = documentHeight - s.stickyElement.outerHeight() - s.topSpacing - s.bottomSpacing - scrollTop - extra; if (newTop < 0) { newTop = newTop + s.topSpacing; } else { newTop = s.topSpacing; } if (s.currentTop != newTop) { var newWidth; if ( s.getWidthFrom ) { newWidth = $(s.getWidthFrom).width() || null; } else if(s.widthFromWrapper) { newWidth = s.stickyWrapper.width(); } if ( newWidth == null ) { newWidth = s.stickyElement.width(); } s.stickyElement .css('width', newWidth) .css('position', 'fixed') .css('top', newTop); s.stickyElement.parent().addClass(s.className); if (s.currentTop === null) { s.stickyElement.trigger('sticky-start', [s]); } else { // sticky is started but it have to be repositioned s.stickyElement.trigger('sticky-update', [s]); } if (s.currentTop === s.topSpacing && s.currentTop > newTop || s.currentTop === null && newTop < s.topSpacing) { // just reached bottom || just started to stick but bottom is already reached s.stickyElement.trigger('sticky-bottom-reached', [s]); } else if(s.currentTop !== null && newTop === s.topSpacing && s.currentTop < newTop) { // sticky is started && sticked at topSpacing && overflowing from top just finished s.stickyElement.trigger('sticky-bottom-unreached', [s]); } s.currentTop = newTop; } } } }, resizer = function() { windowHeight = $window.height(); for (var i = 0; i < sticked.length; i++) { var s = sticked[i]; var newWidth = null; if ( s.getWidthFrom ) { if ( s.responsiveWidth === true ) { newWidth = $(s.getWidthFrom).width(); } } else if(s.widthFromWrapper) { newWidth = s.stickyWrapper.width(); } if ( newWidth != null ) { s.stickyElement.css('width', newWidth); } } }, methods = { init: function(options) { var o = $.extend({}, defaults, options); return this.each(function() { var stickyElement = $(this); var stickyId = stickyElement.attr('id'); var stickyHeight = stickyElement.outerHeight(); var wrapperId = stickyId ? stickyId + '-' + defaults.wrapperClassName : defaults.wrapperClassName var wrapper = $('
') .attr('id', wrapperId) .addClass(o.wrapperClassName); stickyElement.wrapAll(wrapper); var stickyWrapper = stickyElement.parent(); if (o.center) { stickyWrapper.css({width:stickyElement.outerWidth(),marginLeft:"auto",marginRight:"auto"}); } if (stickyElement.css("float") == "right") { stickyElement.css({"float":"none"}).parent().css({"float":"right"}); } stickyWrapper.css('height', stickyHeight); o.stickyElement = stickyElement; o.stickyWrapper = stickyWrapper; o.currentTop = null; sticked.push(o); }); }, update: scroller, unstick: function(options) { return this.each(function() { var that = this; var unstickyElement = $(that); var removeIdx = -1; var i = sticked.length; while ( i-- > 0 ) { if (sticked[i].stickyElement.get(0) === that) { splice.call(sticked,i,1); removeIdx = i; } } if(removeIdx != -1) { unstickyElement.unwrap(); unstickyElement .css({ 'width': '', 'position': '', 'top': '', 'float': '' }) ; } }); } }; // should be more efficient than using $window.scroll(scroller) and $window.resize(resizer): if (window.addEventListener) { window.addEventListener('scroll', scroller, false); window.addEventListener('resize', resizer, false); } else if (window.attachEvent) { window.attachEvent('onscroll', scroller); window.attachEvent('onresize', resizer); } $.fn.sticky = function(method) { if (methods[method]) { return methods[method].apply(this, slice.call(arguments, 1)); } else if (typeof method === 'object' || !method ) { return methods.init.apply( this, arguments ); } else { $.error('Method ' + method + ' does not exist on jQuery.sticky'); } }; $.fn.unstick = function(method) { if (methods[method]) { return methods[method].apply(this, slice.call(arguments, 1)); } else if (typeof method === 'object' || !method ) { return methods.unstick.apply( this, arguments ); } else { $.error('Method ' + method + ' does not exist on jQuery.sticky'); } }; $(function() { setTimeout(scroller, 0); }); })(jQuery); /* FILE ARCHIVED ON 10:48:23 Jun 14, 2018 AND RETRIEVED FROM THE INTERNET ARCHIVE ON 07:05:15 Nov 28, 2018. JAVASCRIPT APPENDED BY WAYBACK MACHINE, COPYRIGHT INTERNET ARCHIVE. ALL OTHER CONTENT MAY ALSO BE PROTECTED BY COPYRIGHT (17 U.S.C. SECTION 108(a)(3)). */ /* playback timings (ms): LoadShardBlock: 47.804 (3) esindex: 0.008 captures_list: 64.38 CDXLines.iter: 10.256 (3) PetaboxLoader3.datanode: 69.132 (4) exclusion.robots: 0.279 exclusion.robots.policy: 0.267 RedisCDXSource: 3.589 PetaboxLoader3.resolve: 27.153 load_resource: 75.403 *============= // Author: Anthony Garand // Improvements by German M. Bravo (Kronuz) and Ruud Kamphuis (ruudk) // Improvements by Leonardo C. Daronco (daronco) // Created: 2/14/2011 // Date: 16/04/2015 // Website: http://labs.anthonygarand.com/sticky // Description: Makes an element on the page stick on the screen as you scroll // It will only set the 'top' and 'position' of your element, you // might need to adjust the width in some cases. (function($) { var slice = Array.prototype.slice; // save ref to original slice() var splice = Array.prototype.splice; // save ref to original slice() var defaults = { topSpacing: 0, bottomSpacing: 0, className: 'is-sticky', wrapperClassName: 'sticky-wrapper', center: false, getWidthFrom: '', widthFromWrapper: true, // works only when .getWidthFrom is empty responsiveWidth: false }, $window = $(window), $document = $(document), sticked = [], windowHeight = $window.height(), scroller = function() { var scrollTop = $window.scrollTop(), documentHeight = $document.height(), dwh = documentHeight - windowHeight, extra = (scrollTop > dwh) ? dwh - scrollTop : 0; for (var i = 0; i < sticked.length; i++) { var s = sticked[i], elementTop = s.stickyWrapper.offset().top, etse = elementTop - s.topSpacing - extra; if (scrollTop <= etse) { if (s.currentTop !== null) { s.stickyElement .css({ 'width': '', 'position': '', 'top': '' }); s.stickyElement.parent().removeClass(s.className); s.stickyElement.trigger('sticky-end', [s]); s.currentTop = null; } } else { var newTop = documentHeight - s.stickyElement.outerHeight() - s.topSpacing - s.bottomSpacing - scrollTop - extra; if (newTop < 0) { newTop = newTop + s.topSpacing; } else { newTop = s.topSpacing; } if (s.currentTop != newTop) { var newWidth; if ( s.getWidthFrom ) { newWidth = $(s.getWidthFrom).width() || null; } else if(s.widthFromWrapper) { newWidth = s.stickyWrapper.width(); } if ( newWidth == null ) { newWidth = s.stickyElement.width(); } s.stickyElement .css('width', newWidth) .css('position', 'fixed') .css('top', newTop); s.stickyElement.parent().addClass(s.className); if (s.currentTop === null) { s.stickyElement.trigger('sticky-start', [s]); } else { // sticky is started but it have to be repositioned s.stickyElement.trigger('sticky-update', [s]); } if (s.currentTop === s.topSpacing && s.currentTop > newTop || s.currentTop === null && newTop < s.topSpacing) { // just reached bottom || just started to stick but bottom is already reached s.stickyElement.trigger('sticky-bottom-reached', [s]); } else if(s.currentTop !== null && newTop === s.topSpacing && s.currentTop < newTop) { // sticky is started && sticked at topSpacing && overflowing from top just finished s.stickyElement.trigger('sticky-bottom-unreached', [s]); } s.currentTop = newTop; } } } }, resizer = function() { windowHeight = $window.height(); for (var i = 0; i < sticked.length; i++) { var s = sticked[i]; var newWidth = null; if ( s.getWidthFrom ) { if ( s.responsiveWidth === true ) { newWidth = $(s.getWidthFrom).width(); } } else if(s.widthFromWrapper) { newWidth = s.stickyWrapper.width(); } if ( newWidth != null ) { s.stickyElement.css('width', newWidth); } } }, methods = { init: function(options) { var o = $.extend({}, defaults, options); return this.each(function() { var stickyElement = $(this); var stickyId = stickyElement.attr('id'); var stickyHeight = stickyElement.outerHeight(); var wrapperId = stickyId ? stickyId + '-' + defaults.wrapperClassName : defaults.wrapperClassName var wrapper = $('
') .attr('id', wrapperId) .addClass(o.wrapperClassName); stickyElement.wrapAll(wrapper); var stickyWrapper = stickyElement.parent(); if (o.center) { stickyWrapper.css({width:stickyElement.outerWidth(),marginLeft:"auto",marginRight:"auto"}); } if (stickyElement.css("float") == "right") { stickyElement.css({"float":"none"}).parent().css({"float":"right"}); } stickyWrapper.css('height', stickyHeight); o.stickyElement = stickyElement; o.stickyWrapper = stickyWrapper; o.currentTop = null; sticked.push(o); }); }, update: scroller, unstick: function(options) { return this.each(function() { var that = this; var unstickyElement = $(that); var removeIdx = -1; var i = sticked.length; while ( i-- > 0 ) { if (sticked[i].stickyElement.get(0) === that) { splice.call(sticked,i,1); removeIdx = i; } } if(removeIdx != -1) { unstickyElement.unwrap(); unstickyElement .css({ 'width': '', 'position': '', 'top': '', 'float': '' }) ; } }); } }; // should be more efficient than using $window.scroll(scroller) and $window.resize(resizer): if (window.addEventListener) { window.addEventListener('scroll', scroller, false); window.addEventListener('resize', resizer, false); } else if (window.attachEvent) { window.attachEvent('onscroll', scroller); window.attachEvent('onresize', resizer); } $.fn.sticky = function(method) { if (methods[method]) { return methods[method].apply(this, slice.call(arguments, 1)); } else if (typeof method === 'object' || !method ) { return methods.init.apply( this, arguments ); } else { $.error('Method ' + method + ' does not exist on jQuery.sticky'); } }; $.fn.unstick = function(method) { if (methods[method]) { return methods[method].apply(this, slice.call(arguments, 1)); } else if (typeof method === 'object' || !method ) { return methods.unstick.apply( this, arguments ); } else { $.error('Method ' + method + ' does not exist on jQuery.sticky'); } }; $(function() { setTimeout(scroller, 0); }); })(jQuery); /* FILE ARCHIVED ON 10:48:23 Jun 14, 2018 AND RETRIEVED FROM THE INTERNET ARCHIVE ON 07:05:15 Nov 28, 2018. JAVASCRIPT APPENDED BY WAYBACK MACHINE, COPYRIGHT INTERNET ARCHIVE. ALL OTHER CONTENT MAY ALSO BE PROTECTED BY COPYRIGHT (17 U.S.C. SECTION 108(a)(3)). */ /* playback timings (ms): LoadShardBlock: 47.804 (3) esindex: 0.008 captures_list: 64.38 CDXLines.iter: 10.256 (3) PetaboxLoader3.datanode: 69.132 (4) exclusion.robots: 0.279 exclusion.robots.policy: 0.267 RedisCDXSource: 3.589 PetaboxLoader3.resolve: 27.153 load_resource: 75.403 */