https://www.teachersguild.nsw.edu.au/includes/javascript/plugins/showLoading/jquery.showLoading.min.js

1/*
2 * jQuery showLoading plugin v1.0
3 * 
4 * Copyright (c) 2009 Jim Keller
5 * Context - http://www.contextllc.com
6 * 
7 * Dual licensed under the MIT and GPL licenses.
8 *
9 */
10jQuery.fn.showLoading=function(options){var indicatorID;var settings={'addClass':'','beforeShow':'','afterShow':'','hPos':'center','vPos':'center','indicatorZIndex':5001,'overlayZIndex':5000,'parent':'','marginTop':0,'marginLeft':0,'overlayWidth':null,'overlayHeight':null};jQuery.extend(settings,options);var loadingDiv=jQuery('<div></div>');var overlayDiv=jQuery('<div></div>');if(settings.indicatorID){indicatorID=settings.indicatorID;}
11else{indicatorID=jQuery(this).attr('id');}
12jQuery(loadingDiv).attr('id','loading-indicator-'+indicatorID);jQuery(loadingDiv).addClass('loading-indicator');if(settings.addClass){jQuery(loadingDiv).addClass(settings.addClass);}
13jQuery(overlayDiv).css('display','none');jQuery(document.body).append(overlayDiv);jQuery(overlayDiv).attr('id','loading-indicator-'+indicatorID+'-overlay');jQuery(overlayDiv).addClass('loading-indicator-overlay');if(settings.addClass){jQuery(overlayDiv).addClass(settings.addClass+'-overlay');}
14var overlay_width;var overlay_height;var border_top_width=jQuery(this).css('border-top-width');var border_left_width=jQuery(this).css('border-left-width');border_top_width=isNaN(parseInt(border_top_width))?0:border_top_width;border_left_width=isNaN(parseInt(border_left_width))?0:border_left_width;var overlay_left_pos=jQuery(this).offset().left+parseInt(border_left_width);var overlay_top_pos=jQuery(this).offset().top+parseInt(border_top_width);if(settings.overlayWidth!==null){overlay_width=settings.overlayWidth;}
15else{overlay_width=parseInt(jQuery(this).width())+parseInt(jQuery(this).css('padding-right'))+parseInt(jQuery(this).css('padding-left'));}
16if(settings.overlayHeight!==null){overlay_height=settings.overlayWidth;}
17else{overlay_height=parseInt(jQuery(this).height())+parseInt(jQuery(this).css('padding-top'))+parseInt(jQuery(this).css('padding-bottom'));}
18jQuery(overlayDiv).css('width',overlay_width.toString()+'px');jQuery(overlayDiv).css('height',overlay_height.toString()+'px');jQuery(overlayDiv).css('left',overlay_left_pos.toString()+'px');jQuery(overlayDiv).css('position','absolute');jQuery(overlayDiv).css('top',overlay_top_pos.toString()+'px');jQuery(overlayDiv).css('z-index',settings.overlayZIndex);if(settings.overlayCSS){jQuery(overlayDiv).css(settings.overlayCSS);}
19jQuery(loadingDiv).css('display','none');jQuery(document.body).append(loadingDiv);jQuery(loadingDiv).css('position','absolute');jQuery(loadingDiv).css('z-index',settings.indicatorZIndex);var indicatorTop=overlay_top_pos;if(settings.marginTop){indicatorTop+=parseInt(settings.marginTop);}
20var indicatorLeft=overlay_left_pos;if(settings.marginLeft){indicatorLeft+=parseInt(settings.marginTop);}
21if(settings.hPos.toString().toLowerCase()=='center'){jQuery(loadingDiv).css('left',(indicatorLeft+((jQuery(overlayDiv).width()-parseInt(jQuery(loadingDiv).width()))/2)).toString()+'px');}
22else if(settings.hPos.toString().toLowerCase()=='left'){jQuery(loadingDiv).css('left',(indicatorLeft+parseInt(jQuery(overlayDiv).css('margin-left'))).toString()+'px');}
23else if(settings.hPos.toString().toLowerCase()=='right'){jQuery(loadingDiv).css('left',(indicatorLeft+(jQuery(overlayDiv).width()-parseInt(jQuery(loadingDiv).width()))).toString()+'px');}
24else{jQuery(loadingDiv).css('left',(indicatorLeft+parseInt(settings.hPos)).toString()+'px');}
25if(settings.vPos.toString().toLowerCase()=='center'){jQuery(loadingDiv).css('top',(indicatorTop+((jQuery(overlayDiv).height()-parseInt(jQuery(loadingDiv).height()))/2)).toString()+'px');}
26else if(settings.vPos.toString().toLowerCase()=='top'){jQuery(loadingDiv).css('top',indicatorTop.toString()+'px');}
27else if(settings.vPos.toString().toLowerCase()=='bottom'){jQuery(loadingDiv).css('top',(indicatorTop+(jQuery(overlayDiv).height()-parseInt(jQuery(loadingDiv).height()))).toString()+'px');}
28else{jQuery(loadingDiv).css('top',(indicatorTop+parseInt(settings.vPos)).toString()+'px');}
29if(settings.css){jQuery(loadingDiv).css(settings.css);}
30var callback_options={'overlay':overlayDiv,'indicator':loadingDiv,'element':this};

30if(typeof(settings.beforeShow)=='function'){settings.beforeShow(callback_options);}
31jQuery(overlayDiv).show();jQuery(loadingDiv).show();if(typeof(settings.afterShow)=='function'){settings.afterShow(callback_options);}
32return this;};jQuery.fn.hideLoading=function(options){var settings={};jQuery.extend(settings,options);if(settings.indicatorID){indicatorID=settings.indicatorID;}
33else{indicatorID=jQuery(this).attr('id');}
34jQuery(document.body).find('#loading-indicator-'+indicatorID).remove();jQuery(document.body).find('#loading-indicator-'+indicatorID+'-overlay').remove();return this;};