39 lines
13 KiB
JavaScript
39 lines
13 KiB
JavaScript
/*!
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Copyright 2011-2021 SpryMedia Ltd.
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This source file is free software, available under the following license:
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MIT license - http://datatables.net/license/mit
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This source file is distributed in the hope that it will be useful, but
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WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
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or FITNESS FOR A PARTICULAR PURPOSE. See the license files for details.
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For details please refer to: http://www.datatables.net
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Scroller 2.0.4
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©2011-2021 SpryMedia Ltd - datatables.net/license
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*/
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(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,m){h||(h=window);m&&m.fn.dataTable||(m=require("datatables.net")(h,m).$);return e(m,h,h.document)}:e(jQuery,window,document)})(function(e,h,m,q){var u=e.fn.dataTable,k=function(a,b){this instanceof k?(b===q&&(b={}),a=e.fn.dataTable.Api(a),this.s={dt:a.settings()[0],dtApi:a,tableTop:0,tableBottom:0,redrawTop:0,redrawBottom:0,
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autoHeight:!0,viewportRows:0,stateTO:null,stateSaveThrottle:function(){},drawTO:null,heights:{jump:null,page:null,virtual:null,scroll:null,row:null,viewport:null,labelFactor:1,labelHeight:0},topRowFloat:0,scrollDrawDiff:null,loaderVisible:!1,forceReposition:!1,baseRowTop:0,baseScrollTop:0,mousedown:!1,lastScrollTop:0},this.s=e.extend(this.s,k.oDefaults,b),this.s.heights.row=this.s.rowHeight,this.dom={force:m.createElement("div"),label:e('<div class="dts_label">0</div>'),scroller:null,table:null,loader:null},
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this.s.dt.oScroller||(this.s.dt.oScroller=this,this.construct())):alert("Scroller warning: Scroller must be initialised with the 'new' keyword.")};e.extend(k.prototype,{measure:function(a){this.s.autoHeight&&this._calcRowHeight();var b=this.s.heights;b.row&&(b.viewport=this._parseHeight(e(this.dom.scroller).css("max-height")),this.s.viewportRows=parseInt(b.viewport/b.row,10)+1,this.s.dt._iDisplayLength=this.s.viewportRows*this.s.displayBuffer);var c=this.dom.label.outerHeight(),d=this.dom.scroller.offsetHeight-
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this.dom.scroller.clientHeight;b.labelHeight=c;b.labelFactor=(b.viewport-c-d)/b.scroll;(a===q||a)&&this.s.dt.oInstance.fnDraw(!1)},pageInfo:function(){var a=this.dom.scroller.scrollTop,b=this.s.dt.fnRecordsDisplay(),c=Math.ceil(this.pixelsToRow(a+this.s.heights.viewport,!1,this.s.ani));return{start:Math.floor(this.pixelsToRow(a,!1,this.s.ani)),end:b<c?b-1:c-1}},pixelsToRow:function(a,b,c){a-=this.s.baseScrollTop;c=c?(this._domain("physicalToVirtual",this.s.baseScrollTop)+a)/this.s.heights.row:a/this.s.heights.row+
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this.s.baseRowTop;return b||b===q?parseInt(c,10):c},rowToPixels:function(a,b,c){a-=this.s.baseRowTop;c=c?this._domain("virtualToPhysical",this.s.baseScrollTop):this.s.baseScrollTop;c+=a*this.s.heights.row;return b||b===q?parseInt(c,10):c},scrollToRow:function(a,b){var c=this,d=!1,f=this.rowToPixels(a),g=a-(this.s.displayBuffer-1)/2*this.s.viewportRows;0>g&&(g=0);(f>this.s.redrawBottom||f<this.s.redrawTop)&&this.s.dt._iDisplayStart!==g&&(d=!0,f=this._domain("virtualToPhysical",a*this.s.heights.row),
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this.s.redrawTop<f&&f<this.s.redrawBottom&&(this.s.forceReposition=!0,b=!1));b===q||b?(this.s.ani=d,e(this.dom.scroller).animate({scrollTop:f},function(){setTimeout(function(){c.s.ani=!1},250)})):e(this.dom.scroller).scrollTop(f)},construct:function(){var a=this,b=this.s.dtApi;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,
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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(b.table().container()).addClass("dts 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",
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"relative").append(this.dom.loader));this.dom.label.appendTo(this.dom.scroller);this.s.heights.row&&"auto"!=this.s.heights.row&&(this.s.autoHeight=!1);this.s.ingnoreScroll=!0;e(this.dom.scroller).on("scroll.dt-scroller",function(f){a._scroll.call(a)});e(this.dom.scroller).on("touchstart.dt-scroller",function(){a._scroll.call(a)});e(this.dom.scroller).on("mousedown.dt-scroller",function(){a.s.mousedown=!0}).on("mouseup.dt-scroller",function(){a.s.labelVisible=!1;a.s.mousedown=!1;a.dom.label.css("display",
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"none")});e(h).on("resize.dt-scroller",function(){a.measure(!1);a._info()});var c=!0,d=b.state.loaded();b.on("stateSaveParams.scroller",function(f,g,l){c&&d?(l.scroller=d.scroller,c=!1):l.scroller={topRow:a.s.topRowFloat,baseScrollTop:a.s.baseScrollTop,baseRowTop:a.s.baseRowTop,scrollTop:a.s.lastScrollTop}});d&&d.scroller&&(this.s.topRowFloat=d.scroller.topRow,this.s.baseScrollTop=d.scroller.baseScrollTop,this.s.baseRowTop=d.scroller.baseRowTop);this.measure(!1);a.s.stateSaveThrottle=a.s.dt.oApi._fnThrottle(function(){a.s.dtApi.state.save()},
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500);b.on("init.scroller",function(){a.measure(!1);a.s.scrollType="jump";a._draw();b.on("draw.scroller",function(){a._draw()})});b.on("preDraw.dt.scroller",function(){a._scrollForce()});b.on("destroy.scroller",function(){e(h).off("resize.dt-scroller");e(a.dom.scroller).off(".dt-scroller");e(a.s.dt.nTable).off(".scroller");e(a.s.dt.nTableWrapper).removeClass("DTS");e("div.DTS_Loading",a.dom.scroller.parentNode).remove();a.dom.table.style.position="";a.dom.table.style.top="";a.dom.table.style.left=
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""})}else this.s.dt.oApi._fnLog(this.s.dt,0,"Pagination must be enabled for Scroller")},_calcRowHeight: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>');e("tbody tr:lt(4)",b).clone().appendTo(d);var g=e("tr",d).length;if(1===g)d.prepend("<tr><td> </td></tr>"),d.append("<tr><td> </td></tr>");else for(;3>g;g++)d.append("<tr><td> </td></tr>");
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e("div."+a.oClasses.sScrollBody,f).append(c);a=this.s.dt.nHolding||b.parentNode;e(a).is(":visible")||(a="body");f.find("input").removeAttr("name");f.appendTo(a);this.s.heights.row=e("tr",d).eq(1).outerHeight();f.remove()},_draw: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,g=this.s.dt._iDisplayLength,l=this.s.dt.fnRecordsDisplay();this.s.skip=!0;!this.s.dt.bSorted&&!this.s.dt.bFiltered||0!==f||this.s.dt._drawHold||(this.s.topRowFloat=
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0);c="jump"===this.s.scrollType?this._domain("virtualToPhysical",this.s.topRowFloat*b.row):c;this.s.baseScrollTop=c;this.s.baseRowTop=this.s.topRowFloat;var n=c-(this.s.topRowFloat-f)*b.row;0===f?n=0:f+g>=l&&(n=b.scroll-d);this.dom.table.style.top=n+"px";this.s.tableTop=n;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>b.scroll-b.viewport-b.row?b.scroll-b.viewport-b.row:c+d;this.s.skip=!1;this.s.dt.oFeatures.bStateSave&&
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null!==this.s.dt.oLoadedState&&"undefined"!=typeof this.s.dt.oLoadedState.scroller?((b=!this.s.dt.sAjaxSource&&!a.s.dt.ajax||this.s.dt.oFeatures.bServerSide?!1:!0)&&2==this.s.dt.iDraw||!b&&1==this.s.dt.iDraw)&&setTimeout(function(){e(a.dom.scroller).scrollTop(a.s.dt.oLoadedState.scroller.scrollTop);setTimeout(function(){a.s.ingnoreScroll=!1},0)},0):a.s.ingnoreScroll=!1;this.s.dt.oFeatures.bInfo&&setTimeout(function(){a._info.call(a)},0);e(this.s.dt.nTable).triggerHandler("position.dts.dt",n);this.dom.loader&&
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this.s.loaderVisible&&(this.dom.loader.css("display","none"),this.s.loaderVisible=!1)},_domain:function(a,b){var c=this.s.heights;if(c.virtual===c.scroll||1E4>b)return b;if("virtualToPhysical"===a&&b>=c.virtual-1E4)return a=c.virtual-b,c.scroll-a;if("physicalToVirtual"===a&&b>=c.scroll-1E4)return a=c.scroll-b,c.virtual-a;c=(c.virtual-1E4-1E4)/(c.scroll-1E4-1E4);var d=1E4-1E4*c;return"virtualToPhysical"===a?(b-d)/c:c*b+d},_info:function(){if(this.s.dt.oFeatures.bInfo){var a=this.s.dt,b=a.oLanguage,
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c=this.dom.scroller.scrollTop,d=Math.floor(this.pixelsToRow(c,!1,this.s.ani)+1),f=a.fnRecordsTotal(),g=a.fnRecordsDisplay();c=Math.ceil(this.pixelsToRow(c+this.s.heights.viewport,!1,this.s.ani));c=g<c?g:c;var l=a.fnFormatNumber(d),n=a.fnFormatNumber(c),r=a.fnFormatNumber(f),t=a.fnFormatNumber(g);l=0===a.fnRecordsDisplay()&&a.fnRecordsDisplay()==a.fnRecordsTotal()?b.sInfoEmpty+b.sInfoPostFix:0===a.fnRecordsDisplay()?b.sInfoEmpty+" "+b.sInfoFiltered.replace("_MAX_",r)+b.sInfoPostFix:a.fnRecordsDisplay()==
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a.fnRecordsTotal()?b.sInfo.replace("_START_",l).replace("_END_",n).replace("_MAX_",r).replace("_TOTAL_",t)+b.sInfoPostFix:b.sInfo.replace("_START_",l).replace("_END_",n).replace("_MAX_",r).replace("_TOTAL_",t)+" "+b.sInfoFiltered.replace("_MAX_",a.fnFormatNumber(a.fnRecordsTotal()))+b.sInfoPostFix;(b=b.fnInfoCallback)&&(l=b.call(a.oInstance,a,d,c,f,g,l));d=a.aanFeatures.i;if("undefined"!=typeof d)for(f=0,g=d.length;f<g;f++)e(d[f]).html(l);e(a.nTable).triggerHandler("info.dt")}},_parseHeight:function(a){var b,
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c=/^([+-]?(?:\d+(?:\.\d+)?|\.\d+))(px|em|rem|vh)$/.exec(a);if(null===c)return 0;a=parseFloat(c[1]);c=c[2];"px"===c?b=a:"vh"===c?b=a/100*e(h).height():"rem"===c?b=a*parseFloat(e(":root").css("font-size")):"em"===c&&(b=a*parseFloat(e("body").css("font-size")));return b?b:0},_scroll:function(){var a=this,b=this.s.heights,c=this.dom.scroller.scrollTop;if(!this.s.skip&&!this.s.ingnoreScroll&&c!==this.s.lastScrollTop)if(this.s.dt.bFiltered||this.s.dt.bSorted)this.s.lastScrollTop=0;else{this._info();clearTimeout(this.s.stateTO);
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this.s.stateTO=setTimeout(function(){a.s.dtApi.state.save()},250);this.s.scrollType=Math.abs(c-this.s.lastScrollTop)>b.viewport?"jump":"cont";this.s.topRowFloat="cont"===this.s.scrollType?this.pixelsToRow(c,!1,!1):this._domain("physicalToVirtual",c)/b.row;0>this.s.topRowFloat&&(this.s.topRowFloat=0);if(this.s.forceReposition||c<this.s.redrawTop||c>this.s.redrawBottom){var d=Math.ceil((this.s.displayBuffer-1)/2*this.s.viewportRows);d=parseInt(this.s.topRowFloat,10)-d;this.s.forceReposition=!1;0>=d?
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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++;this.s.targetTop=d;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,d=function(){a.s.dt._iDisplayStart=a.s.targetTop;a.s.dt.oApi._fnDraw(a.s.dt)},this.s.dt.oFeatures.bServerSide?(this.s.forceReposition=!0,clearTimeout(this.s.drawTO),this.s.drawTO=setTimeout(d,this.s.serverWait)):
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d(),this.dom.loader&&!this.s.loaderVisible&&(this.dom.loader.css("display","block"),this.s.loaderVisible=!0))}else this.s.topRowFloat=this.pixelsToRow(c,!1,!0);this.s.lastScrollTop=c;this.s.stateSaveThrottle();"jump"===this.s.scrollType&&this.s.mousedown&&(this.s.labelVisible=!0);this.s.labelVisible&&this.dom.label.html(this.s.dt.fnFormatNumber(parseInt(this.s.topRowFloat,10)+1)).css("top",c+c*b.labelFactor).css("display","block")}},_scrollForce:function(){var a=this.s.heights;a.virtual=a.row*this.s.dt.fnRecordsDisplay();
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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"}});k.defaults={boundaryScale:.5,displayBuffer:9,loadingIndicator:!1,rowHeight:"auto",serverWait:200};k.oDefaults=k.defaults;k.version="2.0.4";e(m).on("preInit.dt.dtscroller",function(a,b){if("dt"===a.namespace){a=b.oInit.scroller;var c=u.defaults.scroller;if(a||c)c=e.extend({},a,c),!1!==a&&new k(b,c)}});e.fn.dataTable.Scroller=k;e.fn.DataTable.Scroller=k;var p=
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e.fn.dataTable.Api;p.register("scroller()",function(){return this});p.register("scroller().rowToPixels()",function(a,b,c){var d=this.context;if(d.length&&d[0].oScroller)return d[0].oScroller.rowToPixels(a,b,c)});p.register("scroller().pixelsToRow()",function(a,b,c){var d=this.context;if(d.length&&d[0].oScroller)return d[0].oScroller.pixelsToRow(a,b,c)});p.register(["scroller().scrollToRow()","scroller.toPosition()"],function(a,b){this.iterator("table",function(c){c.oScroller&&c.oScroller.scrollToRow(a,
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b)});return this});p.register("row().scrollTo()",function(a){var b=this;this.iterator("row",function(c,d){c.oScroller&&(d=b.rows({order:"applied",search:"applied"}).indexes().indexOf(d),c.oScroller.scrollToRow(d,a))});return this});p.register("scroller.measure()",function(a){this.iterator("table",function(b){b.oScroller&&b.oScroller.measure(a)});return this});p.register("scroller.page()",function(){var a=this.context;if(a.length&&a[0].oScroller)return a[0].oScroller.pageInfo()});return k});
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