jquery.stickytableheaders.min.js

(function(e,i){"use strict";function t(t,s){var d=this;d.$el=e(t),d.el=t,d.id=l++,d.$window=e(i),d.$document=e(document),d.$el.bind("destroyed",e.proxy(d.teardown,d)),d.$clonedHeader=null,d.$originalHeader=null,d.isSticky=!1,d.hasBeenSticky=!1,d.leftOffset=null,d.topOffset=null,d.init=function(){d.$el.each(function(){var i=e(this);i.css("padding",0),d.$originalHeader=e("thead:first",this),d.$clonedHeader=d.$originalHeader.clone(),i.trigger("clonedHeader."+o,[d.$clonedHeader]),d.$clonedHeader.addClass("tableFloatingHeader"),d.$clonedHeader.css("display","none"),d.$originalHeader.addClass("tableFloatingHeaderOriginal"),d.$originalHeader.after(d.$clonedHeader),d.$printStyle=e('<style type="text/css" media="print">.tableFloatingHeader{display:none !important;}.tableFloatingHeaderOriginal{position:static !important;}</style>'),e("head").append(d.$printStyle)}),d.setOptions(s),d.updateWidth(),d.toggleHeaders(),d.bind()},d.destroy=function(){d.$el.unbind("destroyed",d.teardown),d.teardown()},d.teardown=function(){d.isSticky&&d.$originalHeader.css("position","static"),e.removeData(d.el,"plugin_"+o),d.unbind(),d.$clonedHeader.remove(),d.$originalHeader.removeClass("tableFloatingHeaderOriginal"),d.$originalHeader.css("visibility","visible"),d.$printStyle.remove(),d.el=null,d.$el=null},d.bind=function(){d.$scrollableArea.on("scroll."+o,d.toggleHeaders),d.isWindowScrolling||(d.$window.on("scroll."+o+d.id,d.setPositionValues),d.$window.on("resize."+o+d.id,d.toggleHeaders)),d.$scrollableArea.on("resize."+o,d.toggleHeaders),d.$scrollableArea.on("resize."+o,d.updateWidth)},d.unbind=function(){d.$scrollableArea.off("."+o,d.toggleHeaders),d.isWindowScrolling||(d.$window.off("."+o+d.id,d.setPositionValues),d.$window.off("."+o+d.id,d.toggleHeaders)),d.$scrollableArea.off("."+o,d.updateWidth),d.$el.off("."+o),d.$el.find("*").off("."+o)},d.toggleHeaders=function(){d.$el&&d.$el.each(function(){var i,t=e(this),o=d.isWindowScrolling?isNaN(d.options.fixedOffset)?d.options.fixedOffset.outerHeight():d.options.fixedOffset:d.$scrollableArea.offset().top+(isNaN(d.options.fixedOffset)?0:d.options.fixedOffset),l=t.offset(),n=d.$scrollableArea.scrollTop()+o,s=d.$scrollableArea.scrollLeft(),a=d.isWindowScrolling?n>l.top:o>l.top,r=(d.isWindowScrolling?n:0)<l.top+t.height()-d.$clonedHeader.height()-(d.isWindowScrolling?0:o);a&&r?(i=l.left-s+d.options.leftOffset,d.$originalHeader.css({position:"fixed","margin-top":0,left:i,"z-index":1}),d.leftOffset=i,d.topOffset=o,d.$clonedHeader.css("display",""),d.isSticky||(d.isSticky=!0,d.updateWidth()),d.setPositionValues()):d.isSticky&&(d.$originalHeader.css("position","static"),d.$clonedHeader.css("display","none"),d.isSticky=!1,d.resetWidth(e("td,th",d.$clonedHeader),e("td,th",d.$originalHeader)))})},d.setPositionValues=function(){var e=d.$window.scrollTop(),i=d.$window.scrollLeft();!d.isSticky||0>e||e+d.$window.height()>d.$document.height()||0>i||i+d.$window.width()>d.$document.width()||d.$originalHeader.css({top:d.topOffset-(d.isWindowScrolling?0:e),left:d.leftOffset-(d.isWindowScrolling?0:i)})},d.updateWidth=function(){if(d.isSticky){d.$originalHeaderCells||(d.$originalHeaderCells=e("th,td",d.$originalHeader)),d.$clonedHeaderCells||(d.$clonedHeaderCells=e("th,td",d.$clonedHeader));var i=d.getWidth(d.$clonedHeaderCells);d.setWidth(i,d.$clonedHeaderCells,d.$originalHeaderCells),d.$originalHeader.css("width",d.$clonedHeader.width())}},d.getWidth=function(t){var o=[];return t.each(function(t){var l,n=e(this);if("border-box"===n.css("box-sizing"))l=n.outerWidth();else{var s=e("th",d.$originalHeader);if("collapse"===s.css("border-collapse"))if(i.getComputedStyle)l=parseFloat(i.getComputedStyle(this,null).width);else{var a=parseFloat(n.css("padding-left")),r=parseFloat(n.css("padding-right")),c=parseFloat(n.css("border-width"));l=n.outerWidth()-a-r-c}else l=n.width()}o[t]=l}),o},d.setWidth=function(e,i,t){i.each(function(i){var o=e[i];t.eq(i).css({"min-width":o,"max-width":o})})},d.resetWidth=function(i,t){i.each(function(i){var o=e(this);t.eq(i).css({"min-width":o.css("min-width"),"max-width":o.css("max-width")})})},d.setOptions=function(t){d.options=e.extend({},n,t),d.$scrollableArea=e(d.options.scrollableArea),d.isWindowScrolling=d.$scrollableArea[0]===i},d.updateOptions=function(e){d.setOptions(e),d.unbind(),d.bind(),d.updateWidth(),d.toggleHeaders()},d.init()}var o="stickyTableHeaders",l=0,n={fixedOffset:0,leftOffset:0,scrollableArea:i};e.fn[o]=function(i){return this.each(function(){var l=e.data(this,"plugin_"+o);l?"string"==typeof i?l[i].apply(l):l.updateOptions(i):"destroy"!==i&&e.data(this,"plugin_"+o,new t(this,i))})}})(jQuery,window);