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/**
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* Generate the node required for the info display
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* @param {object} oSettings dataTables settings object
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* @returns {node} Information element
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* @memberof DataTable#oApi
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*/
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function _fnFeatureHtmlInfo ( oSettings )
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{
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var nInfo = document.createElement( 'div' );
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nInfo.className = oSettings.oClasses.sInfo;
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/* Actions that are to be taken once only for this feature */
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if ( !oSettings.aanFeatures.i )
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{
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/* Add draw callback */
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oSettings.aoDrawCallback.push( {
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"fn": _fnUpdateInfo,
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"sName": "information"
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} );
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/* Add id */
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nInfo.id = oSettings.sTableId+'_info';
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}
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oSettings.nTable.setAttribute( 'aria-describedby', oSettings.sTableId+'_info' );
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return nInfo;
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}
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/**
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* Update the information elements in the display
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* @param {object} oSettings dataTables settings object
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* @memberof DataTable#oApi
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*/
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function _fnUpdateInfo ( oSettings )
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{
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/* Show information about the table */
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if ( !oSettings.oFeatures.bInfo || oSettings.aanFeatures.i.length === 0 )
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{
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return;
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}
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var
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oLang = oSettings.oLanguage,
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iStart = oSettings._iDisplayStart+1,
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iEnd = oSettings.fnDisplayEnd(),
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iMax = oSettings.fnRecordsTotal(),
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iTotal = oSettings.fnRecordsDisplay(),
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sOut;
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if ( iTotal === 0 )
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{
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/* Empty record set */
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sOut = oLang.sInfoEmpty;
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}
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else {
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/* Normal record set */
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sOut = oLang.sInfo;
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}
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if ( iTotal != iMax )
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{
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/* Record set after filtering */
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sOut += ' ' + oLang.sInfoFiltered;
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}
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// Convert the macros
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sOut += oLang.sInfoPostFix;
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sOut = _fnInfoMacros( oSettings, sOut );
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if ( oLang.fnInfoCallback !== null )
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{
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sOut = oLang.fnInfoCallback.call( oSettings.oInstance,
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oSettings, iStart, iEnd, iMax, iTotal, sOut );
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}
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var n = oSettings.aanFeatures.i;
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for ( var i=0, iLen=n.length ; i<iLen ; i++ )
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{
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$(n[i]).html( sOut );
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}
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}
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function _fnInfoMacros ( oSettings, str )
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{
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var
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iStart = oSettings._iDisplayStart+1,
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sStart = oSettings.fnFormatNumber( iStart ),
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iEnd = oSettings.fnDisplayEnd(),
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sEnd = oSettings.fnFormatNumber( iEnd ),
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iTotal = oSettings.fnRecordsDisplay(),
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sTotal = oSettings.fnFormatNumber( iTotal ),
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iMax = oSettings.fnRecordsTotal(),
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sMax = oSettings.fnFormatNumber( iMax );
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// When infinite scrolling, we are always starting at 1. _iDisplayStart is used only
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// internally
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if ( oSettings.oScroll.bInfinite )
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{
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sStart = oSettings.fnFormatNumber( 1 );
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}
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return str.
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replace(/_START_/g, sStart).
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replace(/_END_/g, sEnd).
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replace(/_TOTAL_/g, sTotal).
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replace(/_MAX_/g, sMax);
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}
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