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60 lines
2.2 KiB
JavaScript
60 lines
2.2 KiB
JavaScript
/**
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* Get a `dt-tag td` node from a row, taking into account column visibility.
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* While getting a `dt-tag td` node is easy when it is visible on the page by
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* using normal DOM methods, jQuery or whatever, it becomes a lot more
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* complicated when taking into account hidden rows and columns. This function
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* can be used to overcome these difficulties.
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*
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* DataTables 1.10+'s new API provides the `dt-api cell()` and `dt-api cells()`
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* methods which are preferable for use over this method. As such this method is
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* marked deprecated, but is available for use with legacy version of
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* DataTables. Please use the new API if you are used DataTables 1.10 or newer.
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*
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* @name fnGetTd
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* @summary Get the `dt-tag td` element for a cell.
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* @author [Allan Jardine](http://sprymedia.co.uk)
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* @deprecated
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*
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* @param {node} mTr `dt-tag tr` element to get the `dt-tag td` of
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* @param {integer} iTd Column index to get the node of
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* @param {boolean} bVisOnly Consider visible columns only
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* @returns {node} `dt-tag td` element in question
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*
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* @example
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* $(document).ready(function() {
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* var table = $('#example').dataTable();
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*
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* // Sort in the order that was origially in the HTML
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* var nTd = table.fnGetTd( $('#example tbody tr:eq(1)')[0], 1 );
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* console.log( nTd );
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* } );
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*/
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jQuery.fn.dataTableExt.oApi.fnGetTd = function ( oSettings, mTr, iTd, bVisOnly )
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{
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/* Take either a TR node or aoData index as the mTr property */
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var iRow = (typeof mTr == 'object') ?
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oSettings.oApi._fnNodeToDataIndex(oSettings, mTr) : mTr;
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if ( typeof bVisOnly == 'undefined' && !bVisOnly )
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{
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/* Looking at both visible and hidden TD elements - convert to visible index, if not present
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* then it must be hidden. Return as appropriate
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*/
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var iCalcVis = oSettings.oApi._fnColumnIndexToVisible( oSettings, iTd );
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if ( iCalcVis !== null )
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{
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return oSettings.aoData[ iRow ].nTr.getElementsByTagName('td')[ iCalcVis ];
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}
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else
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{
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return oSettings.aoData[ iRow ]._anHidden[ iTd ];
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}
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}
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else
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{
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/* Only looking at visible TD elements, so just use getElements... */
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return oSettings.aoData[ iRow ].nTr.getElementsByTagName('td')[ iTd ];
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}
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};
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