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Filename : dataTables.scroller.min.js
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/*!
 Scroller 1.4.2
 ©2011-2016 SpryMedia Ltd - datatables.net/license
*/
(function(e){"function"===typeof define&&define.amd?define(["jquery","datatables.net"],function(h){return e(h,window,document)}):"object"===typeof exports?module.exports=function(h,j){h||(h=window);if(!j||!j.fn.dataTable)j=require("datatables.net")(h,j).$;return e(j,h,h.document)}:e(jQuery,window,document)})(function(e,h,j,l){var m=e.fn.dataTable,g=function(a,b){this instanceof g?(b===l&&(b={}),this.s={dt:e.fn.dataTable.Api(a).settings()[0],tableTop:0,tableBottom:0,redrawTop:0,redrawBottom:0,autoHeight:!0,
viewportRows:0,stateTO:null,drawTO:null,heights:{jump:null,page:null,virtual:null,scroll:null,row:null,viewport:null},topRowFloat:0,scrollDrawDiff:null,loaderVisible:!1},this.s=e.extend(this.s,g.oDefaults,b),this.s.heights.row=this.s.rowHeight,this.dom={force:j.createElement("div"),scroller:null,table:null,loader:null},this.s.dt.oScroller||(this.s.dt.oScroller=this,this._fnConstruct())):alert("Scroller warning: Scroller must be initialised with the 'new' keyword.")};e.extend(g.prototype,{fnRowToPixels:function(a,
b,c){a=c?this._domain("virtualToPhysical",a*this.s.heights.row):this.s.baseScrollTop+(a-this.s.baseRowTop)*this.s.heights.row;return b||b===l?parseInt(a,10):a},fnPixelsToRow:function(a,b,c){var d=a-this.s.baseScrollTop,a=c?this._domain("physicalToVirtual",a)/this.s.heights.row:d/this.s.heights.row+this.s.baseRowTop;return b||b===l?parseInt(a,10):a},fnScrollToRow:function(a,b){var c=this,d=!1,f=this.fnRowToPixels(a),i=a-(this.s.displayBuffer-1)/2*this.s.viewportRows;0>i&&(i=0);if((f>this.s.redrawBottom||
f<this.s.redrawTop)&&this.s.dt._iDisplayStart!==i)d=!0,f=this.fnRowToPixels(a,!1,!0);"undefined"==typeof b||b?(this.s.ani=d,e(this.dom.scroller).animate({scrollTop:f},function(){setTimeout(function(){c.s.ani=!1},25)})):e(this.dom.scroller).scrollTop(f)},fnMeasure:function(a){this.s.autoHeight&&this._fnCalcRowHeight();var b=this.s.heights;b.row&&(b.viewport=e(this.dom.scroller).height(),this.s.viewportRows=parseInt(b.viewport/b.row,10)+1,this.s.dt._iDisplayLength=this.s.viewportRows*this.s.displayBuffer);
(a===l||a)&&this.s.dt.oInstance.fnDraw(!1)},fnPageInfo:function(){var a=this.dom.scroller.scrollTop,b=this.s.dt.fnRecordsDisplay(),c=Math.ceil(this.fnPixelsToRow(a+this.s.heights.viewport,!1,this.s.ani));return{start:Math.floor(this.fnPixelsToRow(a,!1,this.s.ani)),end:b<c?b-1:c-1}},_fnConstruct:function(){var a=this;if(this.s.dt.oFeatures.bPaginate){this.dom.force.style.position="relative";this.dom.force.style.top="0px";this.dom.force.style.left="0px";this.dom.force.style.width="1px";this.dom.scroller=
e("div."+this.s.dt.oClasses.sScrollBody,this.s.dt.nTableWrapper)[0];this.dom.scroller.appendChild(this.dom.force);this.dom.scroller.style.position="relative";this.dom.table=e(">table",this.dom.scroller)[0];this.dom.table.style.position="absolute";this.dom.table.style.top="0px";this.dom.table.style.left="0px";e(this.s.dt.nTableWrapper).addClass("DTS");this.s.loadingIndicator&&(this.dom.loader=e('<div class="dataTables_processing DTS_Loading">'+this.s.dt.oLanguage.sLoadingRecords+"</div>").css("display",
"none"),e(this.dom.scroller.parentNode).css("position","relative").append(this.dom.loader));this.s.heights.row&&"auto"!=this.s.heights.row&&(this.s.autoHeight=!1);this.fnMeasure(!1);this.s.ingnoreScroll=!0;this.s.stateSaveThrottle=this.s.dt.oApi._fnThrottle(function(){a.s.dt.oApi._fnSaveState(a.s.dt)},500);e(this.dom.scroller).on("scroll.DTS",function(){a._fnScroll.call(a)});e(this.dom.scroller).on("touchstart.DTS",function(){a._fnScroll.call(a)});this.s.dt.aoDrawCallback.push({fn:function(){a.s.dt.bInitialised&&
a._fnDrawCallback.call(a)},sName:"Scroller"});e(h).on("resize.DTS",function(){a.fnMeasure(false);a._fnInfo()});var b=!0;this.s.dt.oApi._fnCallbackReg(this.s.dt,"aoStateSaveParams",function(c,d){if(b&&a.s.dt.oLoadedState){d.iScroller=a.s.dt.oLoadedState.iScroller;d.iScrollerTopRow=a.s.dt.oLoadedState.iScrollerTopRow;b=false}else{d.iScroller=a.dom.scroller.scrollTop;d.iScrollerTopRow=a.s.topRowFloat}},"Scroller_State");this.s.dt.oLoadedState&&(this.s.topRowFloat=this.s.dt.oLoadedState.iScrollerTopRow||
0);e(this.s.dt.nTable).one("init.dt",function(){a.fnMeasure()});this.s.dt.aoDestroyCallback.push({sName:"Scroller",fn:function(){e(h).off("resize.DTS");e(a.dom.scroller).off("touchstart.DTS scroll.DTS");e(a.s.dt.nTableWrapper).removeClass("DTS");e("div.DTS_Loading",a.dom.scroller.parentNode).remove();e(a.s.dt.nTable).off("init.dt");a.dom.table.style.position="";a.dom.table.style.top="";a.dom.table.style.left=""}})}else this.s.dt.oApi._fnLog(this.s.dt,0,"Pagination must be enabled for Scroller")},
_fnScroll:function(){var a=this,b=this.s.heights,c=this.dom.scroller.scrollTop,d;if(!this.s.skip&&!this.s.ingnoreScroll)if(this.s.dt.bFiltered||this.s.dt.bSorted)this.s.lastScrollTop=0;else{this._fnInfo();clearTimeout(this.s.stateTO);this.s.stateTO=setTimeout(function(){a.s.dt.oApi._fnSaveState(a.s.dt)},250);if(c<this.s.redrawTop||c>this.s.redrawBottom){var f=Math.ceil((this.s.displayBuffer-1)/2*this.s.viewportRows);Math.abs(c-this.s.lastScrollTop)>b.viewport||this.s.ani?(d=parseInt(this._domain("physicalToVirtual",
c)/b.row,10)-f,this.s.topRowFloat=this._domain("physicalToVirtual",c)/b.row):(d=this.fnPixelsToRow(c)-f,this.s.topRowFloat=this.fnPixelsToRow(c,!1));0>=d?d=0:d+this.s.dt._iDisplayLength>this.s.dt.fnRecordsDisplay()?(d=this.s.dt.fnRecordsDisplay()-this.s.dt._iDisplayLength,0>d&&(d=0)):0!==d%2&&d++;if(d!=this.s.dt._iDisplayStart&&(this.s.tableTop=e(this.s.dt.nTable).offset().top,this.s.tableBottom=e(this.s.dt.nTable).height()+this.s.tableTop,b=function(){if(a.s.scrollDrawReq===null)a.s.scrollDrawReq=
c;a.s.dt._iDisplayStart=d;a.s.dt.oApi._fnDraw(a.s.dt)},this.s.dt.oFeatures.bServerSide?(clearTimeout(this.s.drawTO),this.s.drawTO=setTimeout(b,this.s.serverWait)):b(),this.dom.loader&&!this.s.loaderVisible))this.dom.loader.css("display","block"),this.s.loaderVisible=!0}else this.s.topRowFloat=this._domain("physicalToVirtual",c)/b.row;this.s.lastScrollTop=c;this.s.stateSaveThrottle()}},_domain:function(a,b){var c=this.s.heights,d;if(c.virtual===c.scroll)return b;var e=(c.scroll-c.viewport)/2,i=(c.virtual-
c.viewport)/2;d=i/(e*e);if("virtualToPhysical"===a){if(b<i)return Math.pow(b/d,0.5);b=2*i-b;return 0>b?c.scroll:2*e-Math.pow(b/d,0.5)}if("physicalToVirtual"===a){if(b<e)return b*b*d;b=2*e-b;return 0>b?c.virtual:2*i-b*b*d}},_fnDrawCallback:function(){var a=this,b=this.s.heights,c=this.dom.scroller.scrollTop,d=e(this.s.dt.nTable).height(),f=this.s.dt._iDisplayStart,i=this.s.dt._iDisplayLength,g=this.s.dt.fnRecordsDisplay();this.s.skip=!0;this._fnScrollForce();c=0===f?this.s.topRowFloat*b.row:f+i>=g?
b.scroll-(g-this.s.topRowFloat)*b.row:this._domain("virtualToPhysical",this.s.topRowFloat*b.row);this.dom.scroller.scrollTop=c;this.s.baseScrollTop=c;this.s.baseRowTop=this.s.topRowFloat;var h=c-(this.s.topRowFloat-f)*b.row;0===f?h=0:f+i>=g&&(h=b.scroll-d);this.dom.table.style.top=h+"px";this.s.tableTop=h;this.s.tableBottom=d+this.s.tableTop;d=(c-this.s.tableTop)*this.s.boundaryScale;this.s.redrawTop=c-d;this.s.redrawBottom=c+d;this.s.skip=!1;this.s.dt.oFeatures.bStateSave&&null!==this.s.dt.oLoadedState&&
"undefined"!=typeof this.s.dt.oLoadedState.iScroller?((c=(this.s.dt.sAjaxSource||a.s.dt.ajax)&&!this.s.dt.oFeatures.bServerSide?!0:!1)&&2==this.s.dt.iDraw||!c&&1==this.s.dt.iDraw)&&setTimeout(function(){e(a.dom.scroller).scrollTop(a.s.dt.oLoadedState.iScroller);a.s.redrawTop=a.s.dt.oLoadedState.iScroller-b.viewport/2;setTimeout(function(){a.s.ingnoreScroll=!1},0)},0):a.s.ingnoreScroll=!1;this.s.dt.oFeatures.bInfo&&setTimeout(function(){a._fnInfo.call(a)},0);this.dom.loader&&this.s.loaderVisible&&
(this.dom.loader.css("display","none"),this.s.loaderVisible=!1)},_fnScrollForce:function(){var a=this.s.heights;a.virtual=a.row*this.s.dt.fnRecordsDisplay();a.scroll=a.virtual;1E6<a.scroll&&(a.scroll=1E6);this.dom.force.style.height=a.scroll>this.s.heights.row?a.scroll+"px":this.s.heights.row+"px"},_fnCalcRowHeight:function(){var a=this.s.dt,b=a.nTable,c=b.cloneNode(!1),d=e("<tbody/>").appendTo(c),f=e('<div class="'+a.oClasses.sWrapper+' DTS"><div class="'+a.oClasses.sScrollWrapper+'"><div class="'+
a.oClasses.sScrollBody+'"></div></div></div>');for(e("tbody tr:lt(4)",b).clone().appendTo(d);3>e("tr",d).length;)d.append("<tr><td>&nbsp;</td></tr>");e("div."+a.oClasses.sScrollBody,f).append(c);a=this.s.dt.nHolding||b.parentNode;e(a).is(":visible")||(a="body");f.appendTo(a);this.s.heights.row=e("tr",d).eq(1).outerHeight();f.remove()},_fnInfo:function(){if(this.s.dt.oFeatures.bInfo){var a=this.s.dt,b=a.oLanguage,c=this.dom.scroller.scrollTop,d=Math.floor(this.fnPixelsToRow(c,!1,this.s.ani)+1),f=a.fnRecordsTotal(),
i=a.fnRecordsDisplay(),c=Math.ceil(this.fnPixelsToRow(c+this.s.heights.viewport,!1,this.s.ani)),c=i<c?i:c,g=a.fnFormatNumber(d),h=a.fnFormatNumber(c),j=a.fnFormatNumber(f),k=a.fnFormatNumber(i),g=0===a.fnRecordsDisplay()&&a.fnRecordsDisplay()==a.fnRecordsTotal()?b.sInfoEmpty+b.sInfoPostFix:0===a.fnRecordsDisplay()?b.sInfoEmpty+" "+b.sInfoFiltered.replace("_MAX_",j)+b.sInfoPostFix:a.fnRecordsDisplay()==a.fnRecordsTotal()?b.sInfo.replace("_START_",g).replace("_END_",h).replace("_MAX_",j).replace("_TOTAL_",
k)+b.sInfoPostFix:b.sInfo.replace("_START_",g).replace("_END_",h).replace("_MAX_",j).replace("_TOTAL_",k)+" "+b.sInfoFiltered.replace("_MAX_",a.fnFormatNumber(a.fnRecordsTotal()))+b.sInfoPostFix;(b=b.fnInfoCallback)&&(g=b.call(a.oInstance,a,d,c,f,i,g));d=a.aanFeatures.i;if("undefined"!=typeof d){f=0;for(i=d.length;f<i;f++)e(d[f]).html(g)}e(a.nTable).triggerHandler("info.dt")}}});g.defaults={trace:!1,rowHeight:"auto",serverWait:200,displayBuffer:9,boundaryScale:0.5,loadingIndicator:!1};g.oDefaults=
g.defaults;g.version="1.4.2";"function"==typeof e.fn.dataTable&&"function"==typeof e.fn.dataTableExt.fnVersionCheck&&e.fn.dataTableExt.fnVersionCheck("1.10.0")?e.fn.dataTableExt.aoFeatures.push({fnInit:function(a){var b=a.oInit;new g(a,b.scroller||b.oScroller||{})},cFeature:"S",sFeature:"Scroller"}):alert("Warning: Scroller requires DataTables 1.10.0 or greater - www.datatables.net/download");e(j).on("preInit.dt.dtscroller",function(a,b){if("dt"===a.namespace){var c=b.oInit.scroller,d=m.defaults.scroller;
if(c||d)d=e.extend({},c,d),!1!==c&&new g(b,d)}});e.fn.dataTable.Scroller=g;e.fn.DataTable.Scroller=g;var k=e.fn.dataTable.Api;k.register("scroller()",function(){return this});k.register("scroller().rowToPixels()",function(a,b,c){var d=this.context;if(d.length&&d[0].oScroller)return d[0].oScroller.fnRowToPixels(a,b,c)});k.register("scroller().pixelsToRow()",function(a,b,c){var d=this.context;if(d.length&&d[0].oScroller)return d[0].oScroller.fnPixelsToRow(a,b,c)});k.register("scroller().scrollToRow()",
function(a,b){this.iterator("table",function(c){c.oScroller&&c.oScroller.fnScrollToRow(a,b)});return this});k.register("row().scrollTo()",function(a){var b=this;this.iterator("row",function(c,d){if(c.oScroller){var e=b.rows({order:"applied",search:"applied"}).indexes().indexOf(d);c.oScroller.fnScrollToRow(e,a)}});return this});k.register("scroller.measure()",function(a){this.iterator("table",function(b){b.oScroller&&b.oScroller.fnMeasure(a)});return this});k.register("scroller.page()",function(){var a=
this.context;if(a.length&&a[0].oScroller)return a[0].oScroller.fnPageInfo()});return g});