15 lines
4.7 KiB
JavaScript
15 lines
4.7 KiB
JavaScript
/*!
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FixedHeader 3.0.0
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©2009-2015 SpryMedia Ltd - datatables.net/license
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*/
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(function(h,j){var g=function(e,i){var g=0,f=function(b,a){if(!(this instanceof f))throw"FixedHeader must be initialised with the 'new' keyword.";!0===a&&(a={});b=new i.Api(b);this.c=e.extend(!0,{},f.defaults,a);this.s={dt:b,position:{theadTop:0,tbodyTop:0,tfootTop:0,tfootBottom:0,width:0,left:0,tfootHeight:0,theadHeight:0,windowHeight:e(h).height(),visible:!0},headerMode:null,footerMode:null,namespace:".dtfc"+g++};this.dom={floatingHeader:null,thead:e(b.table().header()),tbody:e(b.table().body()),
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tfoot:e(b.table().footer()),header:{host:null,floating:null,placeholder:null},footer:{host:null,floating:null,placeholder:null}};this.dom.header.host=this.dom.thead.parent();this.dom.footer.host=this.dom.tfoot.parent();var c=b.settings()[0];if(c._fixedHeader)throw"FixedHeader already initialised on table "+c.nTable.id;c._fixedHeader=this;this._constructor()};f.prototype={update:function(){this._positions();this._scroll(!0)},_constructor:function(){var b=this,a=this.s.dt;e(h).on("scroll"+this.s.namespace,
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function(){b._scroll()}).on("resize"+this.s.namespace,function(){b.s.position.windowHeight=e(h).height();b._positions();b._scroll(!0)});a.on("column-reorder.dt.dtfc column-visibility.dt.dtfc",function(){b._positions();b._scroll(!0)}).on("draw.dtfc",function(){b._positions();b._scroll()});a.on("destroy.dtfc",function(){a.off(".dtfc");e(h).off(this.s.namespace)});this._positions();this._scroll()},_clone:function(b,a){var c=this.s.dt,d=this.dom[b],k="header"===b?this.dom.thead:this.dom.tfoot;!a&&d.floating?
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d.floating.removeClass("fixedHeader-floating fixedHeader-locked"):(d.floating&&(d.placeholder.remove(),d.floating.children().detach(),d.floating.remove()),d.floating=e(c.table().node().cloneNode(!1)).removeAttr("id").append(k).appendTo("body"),d.placeholder=k.clone(!1),d.host.append(d.placeholder),"footer"===b&&this._footerMatch(d.placeholder,d.floating))},_footerMatch:function(b,a){var c=function(d){var c=e(d,b).map(function(){return e(this).width()}).toArray();e(d,a).each(function(a){e(this).width(c[a])})};
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c("th");c("td")},_footerUnsize:function(){var b=this.dom.footer.floating;b&&e("th, td",b).css("width","")},_modeChange:function(b,a,c){var d=this.dom[a],e=this.s.position;"in-place"===b?(d.placeholder&&(d.placeholder.remove(),d.placeholder=null),d.host.append("header"===a?this.dom.thead:this.dom.tfoot),d.floating&&(d.floating.remove(),d.floating=null),"footer"===a&&this._footerUnsize()):"in"===b?(this._clone(a,c),d.floating.addClass("fixedHeader-floating").css("header"===a?"top":"bottom",this.c[a+
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"Offset"]).css("left",e.left+"px").css("width",e.width+"px"),"footer"===a&&d.floating.css("top","")):"below"===b?(this._clone(a,c),d.floating.addClass("fixedHeader-locked").css("top",e.tfootTop-e.theadHeight).css("left",e.left+"px").css("width",e.width+"px")):"above"===b&&(this._clone(a,c),d.floating.addClass("fixedHeader-locked").css("top",e.tbodyTop).css("left",e.left+"px").css("width",e.width+"px"));this.s[a+"Mode"]=b},_positions:function(){var b=this.s.dt.table(),a=this.s.position,c=this.dom,
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b=e(b.node()),d=b.children("thead"),f=b.children("tfoot"),c=c.tbody;a.visible=b.is(":visible");a.width=b.outerWidth();a.left=b.offset().left;a.theadTop=d.offset().top;a.tbodyTop=c.offset().top;a.theadHeight=a.tbodyTop-a.theadTop;f.length?(a.tfootTop=f.offset().top,a.tfootBottom=a.tfootTop+f.outerHeight(),a.tfootHeight=a.tfootBottom-a.tfootTop):(a.tfootTop=a.tbodyTop+c.outerHeight(),a.tfootBottom=a.tfootTop,a.tfootHeight=a.tfootTop)},_scroll:function(b){var a=e(j).scrollTop(),c=this.s.position,d;this.c.header&&
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(d=!c.visible||a<=c.theadTop-this.c.headerOffset?"in-place":a<=c.tfootTop-c.theadHeight-this.c.headerOffset?"in":"below",(b||d!==this.s.headerMode)&&this._modeChange(d,"header",b));this.c.footer&&this.dom.tfoot.length&&(a=!c.visible||a+c.windowHeight>=c.tfootBottom+this.c.footerOffset?"in-place":c.windowHeight+a>c.tbodyTop+c.tfootHeight+this.c.footerOffset?"in":"above",(b||a!==this.s.footerMode)&&this._modeChange(a,"footer",b))}};f.version="3.0.0";f.defaults={header:!0,footer:!1,headerOffset:0,footerOffset:0};
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e.fn.dataTable.FixedHeader=f;e.fn.DataTable.FixedHeader=f;e(j).on("init.dt.dtb",function(b,a){if("dt"===b.namespace){var c=a.oInit.fixedHeader||i.defaults.fixedHeader;c&&!a._buttons&&new f(a,c)}});i.Api.register("fixedHeader()",function(){});i.Api.register("fixedHeader.adjust()",function(){return this.iterator("table",function(b){(b=b._fixedHeader)&&b.update()})});return f};"function"===typeof define&&define.amd?define(["jquery","datatables"],g):"object"===typeof exports?g(require("jquery"),require("datatables")):
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jQuery&&!jQuery.fn.dataTable.FixedHeader&&g(jQuery,jQuery.fn.dataTable)})(window,document);
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