webapp/resources/datatables-1.9.4/media/src/core/core.info.js

   1
   2 /**
   3  * Generate the node required for the info display
   4  *  @param {object} oSettings dataTables settings object
   5  *  @returns {node} Information element
   6  *  @memberof DataTable#oApi
   7  */
   8 function _fnFeatureHtmlInfo ( oSettings )
   9 {
  10         var nInfo = document.createElement( 'div' );
  11         nInfo.className = oSettings.oClasses.sInfo;
  12
  13         /* Actions that are to be taken once only for this feature */
  14         if ( !oSettings.aanFeatures.i )
  15         {
  16                 /* Add draw callback */
  17                 oSettings.aoDrawCallback.push( {
  18                         "fn": _fnUpdateInfo,
  19                         "sName": "information"
  20                 } );
  21
  22                 /* Add id */
  23                 nInfo.id = oSettings.sTableId+'_info';
  24         }
  25         oSettings.nTable.setAttribute( 'aria-describedby', oSettings.sTableId+'_info' );
  26
  27         return nInfo;
  28 }
  29
  30
  31 /**
  32  * Update the information elements in the display
  33  *  @param {object} oSettings dataTables settings object
  34  *  @memberof DataTable#oApi
  35  */
  36 function _fnUpdateInfo ( oSettings )
  37 {
  38         /* Show information about the table */
  39         if ( !oSettings.oFeatures.bInfo || oSettings.aanFeatures.i.length === 0 )
  40         {
  41                 return;
  42         }
  43
  44         var
  45                 oLang = oSettings.oLanguage,
  46                 iStart = oSettings._iDisplayStart+1,
  47                 iEnd = oSettings.fnDisplayEnd(),
  48                 iMax = oSettings.fnRecordsTotal(),
  49                 iTotal = oSettings.fnRecordsDisplay(),
  50                 sOut;
  51
  52         if ( iTotal === 0 )
  53         {
  54                 /* Empty record set */
  55                 sOut = oLang.sInfoEmpty;
  56         }
  57         else {
  58                 /* Normal record set */
  59                 sOut = oLang.sInfo;
  60         }
  61
  62         if ( iTotal != iMax )
  63         {
  64                 /* Record set after filtering */
  65                 sOut += ' ' + oLang.sInfoFiltered;
  66         }
  67
  68         // Convert the macros
  69         sOut += oLang.sInfoPostFix;
  70         sOut = _fnInfoMacros( oSettings, sOut );
  71
  72         if ( oLang.fnInfoCallback !== null )
  73         {
  74                 sOut = oLang.fnInfoCallback.call( oSettings.oInstance,
  75                         oSettings, iStart, iEnd, iMax, iTotal, sOut );
  76         }
  77
  78         var n = oSettings.aanFeatures.i;
  79         for ( var i=0, iLen=n.length ; i<iLen ; i++ )
  80         {
  81                 $(n[i]).html( sOut );
  82         }
  83 }
  84
  85
  86 function _fnInfoMacros ( oSettings, str )
  87 {
  88         var
  89                 iStart = oSettings._iDisplayStart+1,
  90                 sStart = oSettings.fnFormatNumber( iStart ),
  91                 iEnd = oSettings.fnDisplayEnd(),
  92                 sEnd = oSettings.fnFormatNumber( iEnd ),
  93                 iTotal = oSettings.fnRecordsDisplay(),
  94                 sTotal = oSettings.fnFormatNumber( iTotal ),
  95                 iMax = oSettings.fnRecordsTotal(),
  96                 sMax = oSettings.fnFormatNumber( iMax );
  97
  98         // When infinite scrolling, we are always starting at 1. _iDisplayStart is used only
  99         // internally
 100         if ( oSettings.oScroll.bInfinite )
 101         {
 102                 sStart = oSettings.fnFormatNumber( 1 );
 103         }
 104
 105         return str.
 106                 replace(/_START_/g, sStart).
 107                 replace(/_END_/g,   sEnd).
 108                 replace(/_TOTAL_/g, sTotal).
 109                 replace(/_MAX_/g,   sMax);
 110 }
 111