--- /dev/null
+/**
+ * Create a new TR element (and it's TD children) for a row
+ * @param {object} oSettings dataTables settings object
+ * @param {int} iRow Row to consider
+ * @memberof DataTable#oApi
+ */
+function _fnCreateTr ( oSettings, iRow )
+{
+ var oData = oSettings.aoData[iRow];
+ var nTd;
+
+ if ( oData.nTr === null )
+ {
+ oData.nTr = document.createElement('tr');
+
+ /* Use a private property on the node to allow reserve mapping from the node
+ * to the aoData array for fast look up
+ */
+ oData.nTr._DT_RowIndex = iRow;
+
+ /* Special parameters can be given by the data source to be used on the row */
+ if ( oData._aData.DT_RowId )
+ {
+ oData.nTr.id = oData._aData.DT_RowId;
+ }
+
+ if ( oData._aData.DT_RowClass )
+ {
+ oData.nTr.className = oData._aData.DT_RowClass;
+ }
+
+ /* Process each column */
+ for ( var i=0, iLen=oSettings.aoColumns.length ; i<iLen ; i++ )
+ {
+ var oCol = oSettings.aoColumns[i];
+ nTd = document.createElement( oCol.sCellType );
+
+ /* Render if needed - if bUseRendered is true then we already have the rendered
+ * value in the data source - so can just use that
+ */
+ nTd.innerHTML = (typeof oCol.fnRender === 'function' && (!oCol.bUseRendered || oCol.mData === null)) ?
+ _fnRender( oSettings, iRow, i ) :
+ _fnGetCellData( oSettings, iRow, i, 'display' );
+
+ /* Add user defined class */
+ if ( oCol.sClass !== null )
+ {
+ nTd.className = oCol.sClass;
+ }
+
+ if ( oCol.bVisible )
+ {
+ oData.nTr.appendChild( nTd );
+ oData._anHidden[i] = null;
+ }
+ else
+ {
+ oData._anHidden[i] = nTd;
+ }
+
+ if ( oCol.fnCreatedCell )
+ {
+ oCol.fnCreatedCell.call( oSettings.oInstance,
+ nTd, _fnGetCellData( oSettings, iRow, i, 'display' ), oData._aData, iRow, i
+ );
+ }
+ }
+
+ _fnCallbackFire( oSettings, 'aoRowCreatedCallback', null, [oData.nTr, oData._aData, iRow] );
+ }
+}
+
+
+/**
+ * Create the HTML header for the table
+ * @param {object} oSettings dataTables settings object
+ * @memberof DataTable#oApi
+ */
+function _fnBuildHead( oSettings )
+{
+ var i, nTh, iLen, j, jLen;
+ var iThs = $('th, td', oSettings.nTHead).length;
+ var iCorrector = 0;
+ var jqChildren;
+
+ /* If there is a header in place - then use it - otherwise it's going to get nuked... */
+ if ( iThs !== 0 )
+ {
+ /* We've got a thead from the DOM, so remove hidden columns and apply width to vis cols */
+ for ( i=0, iLen=oSettings.aoColumns.length ; i<iLen ; i++ )
+ {
+ nTh = oSettings.aoColumns[i].nTh;
+ nTh.setAttribute('role', 'columnheader');
+ if ( oSettings.aoColumns[i].bSortable )
+ {
+ nTh.setAttribute('tabindex', oSettings.iTabIndex);
+ nTh.setAttribute('aria-controls', oSettings.sTableId);
+ }
+
+ if ( oSettings.aoColumns[i].sClass !== null )
+ {
+ $(nTh).addClass( oSettings.aoColumns[i].sClass );
+ }
+
+ /* Set the title of the column if it is user defined (not what was auto detected) */
+ if ( oSettings.aoColumns[i].sTitle != nTh.innerHTML )
+ {
+ nTh.innerHTML = oSettings.aoColumns[i].sTitle;
+ }
+ }
+ }
+ else
+ {
+ /* We don't have a header in the DOM - so we are going to have to create one */
+ var nTr = document.createElement( "tr" );
+
+ for ( i=0, iLen=oSettings.aoColumns.length ; i<iLen ; i++ )
+ {
+ nTh = oSettings.aoColumns[i].nTh;
+ nTh.innerHTML = oSettings.aoColumns[i].sTitle;
+ nTh.setAttribute('tabindex', '0');
+
+ if ( oSettings.aoColumns[i].sClass !== null )
+ {
+ $(nTh).addClass( oSettings.aoColumns[i].sClass );
+ }
+
+ nTr.appendChild( nTh );
+ }
+ $(oSettings.nTHead).html( '' )[0].appendChild( nTr );
+ _fnDetectHeader( oSettings.aoHeader, oSettings.nTHead );
+ }
+
+ /* ARIA role for the rows */
+ $(oSettings.nTHead).children('tr').attr('role', 'row');
+
+ /* Add the extra markup needed by jQuery UI's themes */
+ if ( oSettings.bJUI )
+ {
+ for ( i=0, iLen=oSettings.aoColumns.length ; i<iLen ; i++ )
+ {
+ nTh = oSettings.aoColumns[i].nTh;
+
+ var nDiv = document.createElement('div');
+ nDiv.className = oSettings.oClasses.sSortJUIWrapper;
+ $(nTh).contents().appendTo(nDiv);
+
+ var nSpan = document.createElement('span');
+ nSpan.className = oSettings.oClasses.sSortIcon;
+ nDiv.appendChild( nSpan );
+ nTh.appendChild( nDiv );
+ }
+ }
+
+ if ( oSettings.oFeatures.bSort )
+ {
+ for ( i=0 ; i<oSettings.aoColumns.length ; i++ )
+ {
+ if ( oSettings.aoColumns[i].bSortable !== false )
+ {
+ _fnSortAttachListener( oSettings, oSettings.aoColumns[i].nTh, i );
+ }
+ else
+ {
+ $(oSettings.aoColumns[i].nTh).addClass( oSettings.oClasses.sSortableNone );
+ }
+ }
+ }
+
+ /* Deal with the footer - add classes if required */
+ if ( oSettings.oClasses.sFooterTH !== "" )
+ {
+ $(oSettings.nTFoot).children('tr').children('th').addClass( oSettings.oClasses.sFooterTH );
+ }
+
+ /* Cache the footer elements */
+ if ( oSettings.nTFoot !== null )
+ {
+ var anCells = _fnGetUniqueThs( oSettings, null, oSettings.aoFooter );
+ for ( i=0, iLen=oSettings.aoColumns.length ; i<iLen ; i++ )
+ {
+ if ( anCells[i] )
+ {
+ oSettings.aoColumns[i].nTf = anCells[i];
+ if ( oSettings.aoColumns[i].sClass )
+ {
+ $(anCells[i]).addClass( oSettings.aoColumns[i].sClass );
+ }
+ }
+ }
+ }
+}
+
+
+/**
+ * Draw the header (or footer) element based on the column visibility states. The
+ * methodology here is to use the layout array from _fnDetectHeader, modified for
+ * the instantaneous column visibility, to construct the new layout. The grid is
+ * traversed over cell at a time in a rows x columns grid fashion, although each
+ * cell insert can cover multiple elements in the grid - which is tracks using the
+ * aApplied array. Cell inserts in the grid will only occur where there isn't
+ * already a cell in that position.
+ * @param {object} oSettings dataTables settings object
+ * @param array {objects} aoSource Layout array from _fnDetectHeader
+ * @param {boolean} [bIncludeHidden=false] If true then include the hidden columns in the calc,
+ * @memberof DataTable#oApi
+ */
+function _fnDrawHead( oSettings, aoSource, bIncludeHidden )
+{
+ var i, iLen, j, jLen, k, kLen, n, nLocalTr;
+ var aoLocal = [];
+ var aApplied = [];
+ var iColumns = oSettings.aoColumns.length;
+ var iRowspan, iColspan;
+
+ if ( bIncludeHidden === undefined )
+ {
+ bIncludeHidden = false;
+ }
+
+ /* Make a copy of the master layout array, but without the visible columns in it */
+ for ( i=0, iLen=aoSource.length ; i<iLen ; i++ )
+ {
+ aoLocal[i] = aoSource[i].slice();
+ aoLocal[i].nTr = aoSource[i].nTr;
+
+ /* Remove any columns which are currently hidden */
+ for ( j=iColumns-1 ; j>=0 ; j-- )
+ {
+ if ( !oSettings.aoColumns[j].bVisible && !bIncludeHidden )
+ {
+ aoLocal[i].splice( j, 1 );
+ }
+ }
+
+ /* Prep the applied array - it needs an element for each row */
+ aApplied.push( [] );
+ }
+
+ for ( i=0, iLen=aoLocal.length ; i<iLen ; i++ )
+ {
+ nLocalTr = aoLocal[i].nTr;
+
+ /* All cells are going to be replaced, so empty out the row */
+ if ( nLocalTr )
+ {
+ while( (n = nLocalTr.firstChild) )
+ {
+ nLocalTr.removeChild( n );
+ }
+ }
+
+ for ( j=0, jLen=aoLocal[i].length ; j<jLen ; j++ )
+ {
+ iRowspan = 1;
+ iColspan = 1;
+
+ /* Check to see if there is already a cell (row/colspan) covering our target
+ * insert point. If there is, then there is nothing to do.
+ */
+ if ( aApplied[i][j] === undefined )
+ {
+ nLocalTr.appendChild( aoLocal[i][j].cell );
+ aApplied[i][j] = 1;
+
+ /* Expand the cell to cover as many rows as needed */
+ while ( aoLocal[i+iRowspan] !== undefined &&
+ aoLocal[i][j].cell == aoLocal[i+iRowspan][j].cell )
+ {
+ aApplied[i+iRowspan][j] = 1;
+ iRowspan++;
+ }
+
+ /* Expand the cell to cover as many columns as needed */
+ while ( aoLocal[i][j+iColspan] !== undefined &&
+ aoLocal[i][j].cell == aoLocal[i][j+iColspan].cell )
+ {
+ /* Must update the applied array over the rows for the columns */
+ for ( k=0 ; k<iRowspan ; k++ )
+ {
+ aApplied[i+k][j+iColspan] = 1;
+ }
+ iColspan++;
+ }
+
+ /* Do the actual expansion in the DOM */
+ aoLocal[i][j].cell.rowSpan = iRowspan;
+ aoLocal[i][j].cell.colSpan = iColspan;
+ }
+ }
+ }
+}
+
+
+/**
+ * Insert the required TR nodes into the table for display
+ * @param {object} oSettings dataTables settings object
+ * @memberof DataTable#oApi
+ */
+function _fnDraw( oSettings )
+{
+ /* Provide a pre-callback function which can be used to cancel the draw is false is returned */
+ var aPreDraw = _fnCallbackFire( oSettings, 'aoPreDrawCallback', 'preDraw', [oSettings] );
+ if ( $.inArray( false, aPreDraw ) !== -1 )
+ {
+ _fnProcessingDisplay( oSettings, false );
+ return;
+ }
+
+ var i, iLen, n;
+ var anRows = [];
+ var iRowCount = 0;
+ var iStripes = oSettings.asStripeClasses.length;
+ var iOpenRows = oSettings.aoOpenRows.length;
+
+ oSettings.bDrawing = true;
+
+ /* Check and see if we have an initial draw position from state saving */
+ if ( oSettings.iInitDisplayStart !== undefined && oSettings.iInitDisplayStart != -1 )
+ {
+ if ( oSettings.oFeatures.bServerSide )
+ {
+ oSettings._iDisplayStart = oSettings.iInitDisplayStart;
+ }
+ else
+ {
+ oSettings._iDisplayStart = (oSettings.iInitDisplayStart >= oSettings.fnRecordsDisplay()) ?
+ 0 : oSettings.iInitDisplayStart;
+ }
+ oSettings.iInitDisplayStart = -1;
+ _fnCalculateEnd( oSettings );
+ }
+
+ /* Server-side processing draw intercept */
+ if ( oSettings.bDeferLoading )
+ {
+ oSettings.bDeferLoading = false;
+ oSettings.iDraw++;
+ }
+ else if ( !oSettings.oFeatures.bServerSide )
+ {
+ oSettings.iDraw++;
+ }
+ else if ( !oSettings.bDestroying && !_fnAjaxUpdate( oSettings ) )
+ {
+ return;
+ }
+
+ if ( oSettings.aiDisplay.length !== 0 )
+ {
+ var iStart = oSettings._iDisplayStart;
+ var iEnd = oSettings._iDisplayEnd;
+
+ if ( oSettings.oFeatures.bServerSide )
+ {
+ iStart = 0;
+ iEnd = oSettings.aoData.length;
+ }
+
+ for ( var j=iStart ; j<iEnd ; j++ )
+ {
+ var aoData = oSettings.aoData[ oSettings.aiDisplay[j] ];
+ if ( aoData.nTr === null )
+ {
+ _fnCreateTr( oSettings, oSettings.aiDisplay[j] );
+ }
+
+ var nRow = aoData.nTr;
+
+ /* Remove the old striping classes and then add the new one */
+ if ( iStripes !== 0 )
+ {
+ var sStripe = oSettings.asStripeClasses[ iRowCount % iStripes ];
+ if ( aoData._sRowStripe != sStripe )
+ {
+ $(nRow).removeClass( aoData._sRowStripe ).addClass( sStripe );
+ aoData._sRowStripe = sStripe;
+ }
+ }
+
+ /* Row callback functions - might want to manipulate the row */
+ _fnCallbackFire( oSettings, 'aoRowCallback', null,
+ [nRow, oSettings.aoData[ oSettings.aiDisplay[j] ]._aData, iRowCount, j] );
+
+ anRows.push( nRow );
+ iRowCount++;
+
+ /* If there is an open row - and it is attached to this parent - attach it on redraw */
+ if ( iOpenRows !== 0 )
+ {
+ for ( var k=0 ; k<iOpenRows ; k++ )
+ {
+ if ( nRow == oSettings.aoOpenRows[k].nParent )
+ {
+ anRows.push( oSettings.aoOpenRows[k].nTr );
+ break;
+ }
+ }
+ }
+ }
+ }
+ else
+ {
+ /* Table is empty - create a row with an empty message in it */
+ anRows[ 0 ] = document.createElement( 'tr' );
+
+ if ( oSettings.asStripeClasses[0] )
+ {
+ anRows[ 0 ].className = oSettings.asStripeClasses[0];
+ }
+
+ var oLang = oSettings.oLanguage;
+ var sZero = oLang.sZeroRecords;
+ if ( oSettings.iDraw == 1 && oSettings.sAjaxSource !== null && !oSettings.oFeatures.bServerSide )
+ {
+ sZero = oLang.sLoadingRecords;
+ }
+ else if ( oLang.sEmptyTable && oSettings.fnRecordsTotal() === 0 )
+ {
+ sZero = oLang.sEmptyTable;
+ }
+
+ var nTd = document.createElement( 'td' );
+ nTd.setAttribute( 'valign', "top" );
+ nTd.colSpan = _fnVisbleColumns( oSettings );
+ nTd.className = oSettings.oClasses.sRowEmpty;
+ nTd.innerHTML = _fnInfoMacros( oSettings, sZero );
+
+ anRows[ iRowCount ].appendChild( nTd );
+ }
+
+ /* Header and footer callbacks */
+ _fnCallbackFire( oSettings, 'aoHeaderCallback', 'header', [ $(oSettings.nTHead).children('tr')[0],
+ _fnGetDataMaster( oSettings ), oSettings._iDisplayStart, oSettings.fnDisplayEnd(), oSettings.aiDisplay ] );
+
+ _fnCallbackFire( oSettings, 'aoFooterCallback', 'footer', [ $(oSettings.nTFoot).children('tr')[0],
+ _fnGetDataMaster( oSettings ), oSettings._iDisplayStart, oSettings.fnDisplayEnd(), oSettings.aiDisplay ] );
+
+ /*
+ * Need to remove any old row from the display - note we can't just empty the tbody using
+ * $().html('') since this will unbind the jQuery event handlers (even although the node
+ * still exists!) - equally we can't use innerHTML, since IE throws an exception.
+ */
+ var
+ nAddFrag = document.createDocumentFragment(),
+ nRemoveFrag = document.createDocumentFragment(),
+ nBodyPar, nTrs;
+
+ if ( oSettings.nTBody )
+ {
+ nBodyPar = oSettings.nTBody.parentNode;
+ nRemoveFrag.appendChild( oSettings.nTBody );
+
+ /* When doing infinite scrolling, only remove child rows when sorting, filtering or start
+ * up. When not infinite scroll, always do it.
+ */
+ if ( !oSettings.oScroll.bInfinite || !oSettings._bInitComplete ||
+ oSettings.bSorted || oSettings.bFiltered )
+ {
+ while( (n = oSettings.nTBody.firstChild) )
+ {
+ oSettings.nTBody.removeChild( n );
+ }
+ }
+
+ /* Put the draw table into the dom */
+ for ( i=0, iLen=anRows.length ; i<iLen ; i++ )
+ {
+ nAddFrag.appendChild( anRows[i] );
+ }
+
+ oSettings.nTBody.appendChild( nAddFrag );
+ if ( nBodyPar !== null )
+ {
+ nBodyPar.appendChild( oSettings.nTBody );
+ }
+ }
+
+ /* Call all required callback functions for the end of a draw */
+ _fnCallbackFire( oSettings, 'aoDrawCallback', 'draw', [oSettings] );
+
+ /* Draw is complete, sorting and filtering must be as well */
+ oSettings.bSorted = false;
+ oSettings.bFiltered = false;
+ oSettings.bDrawing = false;
+
+ if ( oSettings.oFeatures.bServerSide )
+ {
+ _fnProcessingDisplay( oSettings, false );
+ if ( !oSettings._bInitComplete )
+ {
+ _fnInitComplete( oSettings );
+ }
+ }
+}
+
+
+/**
+ * Redraw the table - taking account of the various features which are enabled
+ * @param {object} oSettings dataTables settings object
+ * @memberof DataTable#oApi
+ */
+function _fnReDraw( oSettings )
+{
+ if ( oSettings.oFeatures.bSort )
+ {
+ /* Sorting will refilter and draw for us */
+ _fnSort( oSettings, oSettings.oPreviousSearch );
+ }
+ else if ( oSettings.oFeatures.bFilter )
+ {
+ /* Filtering will redraw for us */
+ _fnFilterComplete( oSettings, oSettings.oPreviousSearch );
+ }
+ else
+ {
+ _fnCalculateEnd( oSettings );
+ _fnDraw( oSettings );
+ }
+}
+
+
+/**
+ * Add the options to the page HTML for the table
+ * @param {object} oSettings dataTables settings object
+ * @memberof DataTable#oApi
+ */
+function _fnAddOptionsHtml ( oSettings )
+{
+ /*
+ * Create a temporary, empty, div which we can later on replace with what we have generated
+ * we do it this way to rendering the 'options' html offline - speed :-)
+ */
+ var nHolding = $('<div></div>')[0];
+ oSettings.nTable.parentNode.insertBefore( nHolding, oSettings.nTable );
+
+ /*
+ * All DataTables are wrapped in a div
+ */
+ oSettings.nTableWrapper = $('<div id="'+oSettings.sTableId+'_wrapper" class="'+oSettings.oClasses.sWrapper+'" role="grid"></div>')[0];
+ oSettings.nTableReinsertBefore = oSettings.nTable.nextSibling;
+
+ /* Track where we want to insert the option */
+ var nInsertNode = oSettings.nTableWrapper;
+
+ /* Loop over the user set positioning and place the elements as needed */
+ var aDom = oSettings.sDom.split('');
+ var nTmp, iPushFeature, cOption, nNewNode, cNext, sAttr, j;
+ for ( var i=0 ; i<aDom.length ; i++ )
+ {
+ iPushFeature = 0;
+ cOption = aDom[i];
+
+ if ( cOption == '<' )
+ {
+ /* New container div */
+ nNewNode = $('<div></div>')[0];
+
+ /* Check to see if we should append an id and/or a class name to the container */
+ cNext = aDom[i+1];
+ if ( cNext == "'" || cNext == '"' )
+ {
+ sAttr = "";
+ j = 2;
+ while ( aDom[i+j] != cNext )
+ {
+ sAttr += aDom[i+j];
+ j++;
+ }
+
+ /* Replace jQuery UI constants */
+ if ( sAttr == "H" )
+ {
+ sAttr = oSettings.oClasses.sJUIHeader;
+ }
+ else if ( sAttr == "F" )
+ {
+ sAttr = oSettings.oClasses.sJUIFooter;
+ }
+
+ /* The attribute can be in the format of "#id.class", "#id" or "class" This logic
+ * breaks the string into parts and applies them as needed
+ */
+ if ( sAttr.indexOf('.') != -1 )
+ {
+ var aSplit = sAttr.split('.');
+ nNewNode.id = aSplit[0].substr(1, aSplit[0].length-1);
+ nNewNode.className = aSplit[1];
+ }
+ else if ( sAttr.charAt(0) == "#" )
+ {
+ nNewNode.id = sAttr.substr(1, sAttr.length-1);
+ }
+ else
+ {
+ nNewNode.className = sAttr;
+ }
+
+ i += j; /* Move along the position array */
+ }
+
+ nInsertNode.appendChild( nNewNode );
+ nInsertNode = nNewNode;
+ }
+ else if ( cOption == '>' )
+ {
+ /* End container div */
+ nInsertNode = nInsertNode.parentNode;
+ }
+ else if ( cOption == 'l' && oSettings.oFeatures.bPaginate && oSettings.oFeatures.bLengthChange )
+ {
+ /* Length */
+ nTmp = _fnFeatureHtmlLength( oSettings );
+ iPushFeature = 1;
+ }
+ else if ( cOption == 'f' && oSettings.oFeatures.bFilter )
+ {
+ /* Filter */
+ nTmp = _fnFeatureHtmlFilter( oSettings );
+ iPushFeature = 1;
+ }
+ else if ( cOption == 'r' && oSettings.oFeatures.bProcessing )
+ {
+ /* pRocessing */
+ nTmp = _fnFeatureHtmlProcessing( oSettings );
+ iPushFeature = 1;
+ }
+ else if ( cOption == 't' )
+ {
+ /* Table */
+ nTmp = _fnFeatureHtmlTable( oSettings );
+ iPushFeature = 1;
+ }
+ else if ( cOption == 'i' && oSettings.oFeatures.bInfo )
+ {
+ /* Info */
+ nTmp = _fnFeatureHtmlInfo( oSettings );
+ iPushFeature = 1;
+ }
+ else if ( cOption == 'p' && oSettings.oFeatures.bPaginate )
+ {
+ /* Pagination */
+ nTmp = _fnFeatureHtmlPaginate( oSettings );
+ iPushFeature = 1;
+ }
+ else if ( DataTable.ext.aoFeatures.length !== 0 )
+ {
+ /* Plug-in features */
+ var aoFeatures = DataTable.ext.aoFeatures;
+ for ( var k=0, kLen=aoFeatures.length ; k<kLen ; k++ )
+ {
+ if ( cOption == aoFeatures[k].cFeature )
+ {
+ nTmp = aoFeatures[k].fnInit( oSettings );
+ if ( nTmp )
+ {
+ iPushFeature = 1;
+ }
+ break;
+ }
+ }
+ }
+
+ /* Add to the 2D features array */
+ if ( iPushFeature == 1 && nTmp !== null )
+ {
+ if ( typeof oSettings.aanFeatures[cOption] !== 'object' )
+ {
+ oSettings.aanFeatures[cOption] = [];
+ }
+ oSettings.aanFeatures[cOption].push( nTmp );
+ nInsertNode.appendChild( nTmp );
+ }
+ }
+
+ /* Built our DOM structure - replace the holding div with what we want */
+ nHolding.parentNode.replaceChild( oSettings.nTableWrapper, nHolding );
+}
+
+
+/**
+ * Use the DOM source to create up an array of header cells. The idea here is to
+ * create a layout grid (array) of rows x columns, which contains a reference
+ * to the cell that that point in the grid (regardless of col/rowspan), such that
+ * any column / row could be removed and the new grid constructed
+ * @param array {object} aLayout Array to store the calculated layout in
+ * @param {node} nThead The header/footer element for the table
+ * @memberof DataTable#oApi
+ */
+function _fnDetectHeader ( aLayout, nThead )
+{
+ var nTrs = $(nThead).children('tr');
+ var nTr, nCell;
+ var i, k, l, iLen, jLen, iColShifted, iColumn, iColspan, iRowspan;
+ var bUnique;
+ var fnShiftCol = function ( a, i, j ) {
+ var k = a[i];
+ while ( k[j] ) {
+ j++;
+ }
+ return j;
+ };
+
+ aLayout.splice( 0, aLayout.length );
+
+ /* We know how many rows there are in the layout - so prep it */
+ for ( i=0, iLen=nTrs.length ; i<iLen ; i++ )
+ {
+ aLayout.push( [] );
+ }
+
+ /* Calculate a layout array */
+ for ( i=0, iLen=nTrs.length ; i<iLen ; i++ )
+ {
+ nTr = nTrs[i];
+ iColumn = 0;
+
+ /* For every cell in the row... */
+ nCell = nTr.firstChild;
+ while ( nCell ) {
+ if ( nCell.nodeName.toUpperCase() == "TD" ||
+ nCell.nodeName.toUpperCase() == "TH" )
+ {
+ /* Get the col and rowspan attributes from the DOM and sanitise them */
+ iColspan = nCell.getAttribute('colspan') * 1;
+ iRowspan = nCell.getAttribute('rowspan') * 1;
+ iColspan = (!iColspan || iColspan===0 || iColspan===1) ? 1 : iColspan;
+ iRowspan = (!iRowspan || iRowspan===0 || iRowspan===1) ? 1 : iRowspan;
+
+ /* There might be colspan cells already in this row, so shift our target
+ * accordingly
+ */
+ iColShifted = fnShiftCol( aLayout, i, iColumn );
+
+ /* Cache calculation for unique columns */
+ bUnique = iColspan === 1 ? true : false;
+
+ /* If there is col / rowspan, copy the information into the layout grid */
+ for ( l=0 ; l<iColspan ; l++ )
+ {
+ for ( k=0 ; k<iRowspan ; k++ )
+ {
+ aLayout[i+k][iColShifted+l] = {
+ "cell": nCell,
+ "unique": bUnique
+ };
+ aLayout[i+k].nTr = nTr;
+ }
+ }
+ }
+ nCell = nCell.nextSibling;
+ }
+ }
+}
+
+
+/**
+ * Get an array of unique th elements, one for each column
+ * @param {object} oSettings dataTables settings object
+ * @param {node} nHeader automatically detect the layout from this node - optional
+ * @param {array} aLayout thead/tfoot layout from _fnDetectHeader - optional
+ * @returns array {node} aReturn list of unique th's
+ * @memberof DataTable#oApi
+ */
+function _fnGetUniqueThs ( oSettings, nHeader, aLayout )
+{
+ var aReturn = [];
+ if ( !aLayout )
+ {
+ aLayout = oSettings.aoHeader;
+ if ( nHeader )
+ {
+ aLayout = [];
+ _fnDetectHeader( aLayout, nHeader );
+ }
+ }
+
+ for ( var i=0, iLen=aLayout.length ; i<iLen ; i++ )
+ {
+ for ( var j=0, jLen=aLayout[i].length ; j<jLen ; j++ )
+ {
+ if ( aLayout[i][j].unique &&
+ (!aReturn[j] || !oSettings.bSortCellsTop) )
+ {
+ aReturn[j] = aLayout[i][j].cell;
+ }
+ }
+ }
+
+ return aReturn;
+}
+
git://source.jalview.org / proteocache.git / blobdiff