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/**
* Add a data array to the table, creating DOM node etc. This is the parallel to
* _fnGatherData, but for adding rows from a Javascript source, rather than a
* DOM source.
* @param {object} oSettings dataTables settings object
* @param {array} aData data array to be added
* @returns {int} >=0 if successful (index of new aoData entry), -1 if failed
* @memberof DataTable#oApi
*/
function _fnAddData ( oSettings, aDataSupplied )
{
var oCol;
/* Take an independent copy of the data source so we can bash it about as we wish */
var aDataIn = ($.isArray(aDataSupplied)) ?
aDataSupplied.slice() :
$.extend( true, {}, aDataSupplied );
/* Create the object for storing information about this new row */
var iRow = oSettings.aoData.length;
var oData = $.extend( true, {}, DataTable.models.oRow );
oData._aData = aDataIn;
oSettings.aoData.push( oData );
/* Create the cells */
var nTd, sThisType;
for ( var i=0, iLen=oSettings.aoColumns.length ; i<iLen ; i++ )
{
oCol = oSettings.aoColumns[i];
/* Use rendered data for filtering / sorting */
if ( typeof oCol.fnRender === 'function' && oCol.bUseRendered && oCol.mData !== null )
{
_fnSetCellData( oSettings, iRow, i, _fnRender(oSettings, iRow, i) );
}
else
{
_fnSetCellData( oSettings, iRow, i, _fnGetCellData( oSettings, iRow, i ) );
}
/* See if we should auto-detect the column type */
if ( oCol._bAutoType && oCol.sType != 'string' )
{
/* Attempt to auto detect the type - same as _fnGatherData() */
var sVarType = _fnGetCellData( oSettings, iRow, i, 'type' );
if ( sVarType !== null && sVarType !== '' )
{
sThisType = _fnDetectType( sVarType );
if ( oCol.sType === null )
{
oCol.sType = sThisType;
}
else if ( oCol.sType != sThisType && oCol.sType != "html" )
{
/* String is always the 'fallback' option */
oCol.sType = 'string';
}
}
}
}
/* Add to the display array */
oSettings.aiDisplayMaster.push( iRow );
/* Create the DOM information */
if ( !oSettings.oFeatures.bDeferRender )
{
_fnCreateTr( oSettings, iRow );
}
return iRow;
}
/**
* Read in the data from the target table from the DOM
* @param {object} oSettings dataTables settings object
* @memberof DataTable#oApi
*/
function _fnGatherData( oSettings )
{
var iLoop, i, iLen, j, jLen, jInner,
nTds, nTrs, nTd, nTr, aLocalData, iThisIndex,
iRow, iRows, iColumn, iColumns, sNodeName,
oCol, oData;
/*
* Process by row first
* Add the data object for the whole table - storing the tr node. Note - no point in getting
* DOM based data if we are going to go and replace it with Ajax source data.
*/
if ( oSettings.bDeferLoading || oSettings.sAjaxSource === null )
{
nTr = oSettings.nTBody.firstChild;
while ( nTr )
{
if ( nTr.nodeName.toUpperCase() == "TR" )
{
iThisIndex = oSettings.aoData.length;
nTr._DT_RowIndex = iThisIndex;
oSettings.aoData.push( $.extend( true, {}, DataTable.models.oRow, {
"nTr": nTr
} ) );
oSettings.aiDisplayMaster.push( iThisIndex );
nTd = nTr.firstChild;
jInner = 0;
while ( nTd )
{
sNodeName = nTd.nodeName.toUpperCase();
if ( sNodeName == "TD" || sNodeName == "TH" )
{
_fnSetCellData( oSettings, iThisIndex, jInner, $.trim(nTd.innerHTML) );
jInner++;
}
nTd = nTd.nextSibling;
}
}
nTr = nTr.nextSibling;
}
}
/* Gather in the TD elements of the Table - note that this is basically the same as
* fnGetTdNodes, but that function takes account of hidden columns, which we haven't yet
* setup!
*/
nTrs = _fnGetTrNodes( oSettings );
nTds = [];
for ( i=0, iLen=nTrs.length ; i<iLen ; i++ )
{
nTd = nTrs[i].firstChild;
while ( nTd )
{
sNodeName = nTd.nodeName.toUpperCase();
if ( sNodeName == "TD" || sNodeName == "TH" )
{
nTds.push( nTd );
}
nTd = nTd.nextSibling;
}
}
/* Now process by column */
for ( iColumn=0, iColumns=oSettings.aoColumns.length ; iColumn<iColumns ; iColumn++ )
{
oCol = oSettings.aoColumns[iColumn];
/* Get the title of the column - unless there is a user set one */
if ( oCol.sTitle === null )
{
oCol.sTitle = oCol.nTh.innerHTML;
}
var
bAutoType = oCol._bAutoType,
bRender = typeof oCol.fnRender === 'function',
bClass = oCol.sClass !== null,
bVisible = oCol.bVisible,
nCell, sThisType, sRendered, sValType;
/* A single loop to rule them all (and be more efficient) */
if ( bAutoType || bRender || bClass || !bVisible )
{
for ( iRow=0, iRows=oSettings.aoData.length ; iRow<iRows ; iRow++ )
{
oData = oSettings.aoData[iRow];
nCell = nTds[ (iRow*iColumns) + iColumn ];
/* Type detection */
if ( bAutoType && oCol.sType != 'string' )
{
sValType = _fnGetCellData( oSettings, iRow, iColumn, 'type' );
if ( sValType !== '' )
{
sThisType = _fnDetectType( sValType );
if ( oCol.sType === null )
{
oCol.sType = sThisType;
}
else if ( oCol.sType != sThisType &&
oCol.sType != "html" )
{
/* String is always the 'fallback' option */
oCol.sType = 'string';
}
}
}
if ( oCol.mRender )
{
// mRender has been defined, so we need to get the value and set it
nCell.innerHTML = _fnGetCellData( oSettings, iRow, iColumn, 'display' );
}
else if ( oCol.mData !== iColumn )
{
// If mData is not the same as the column number, then we need to
// get the dev set value. If it is the column, no point in wasting
// time setting the value that is already there!
nCell.innerHTML = _fnGetCellData( oSettings, iRow, iColumn, 'display' );
}
/* Rendering */
if ( bRender )
{
sRendered = _fnRender( oSettings, iRow, iColumn );
nCell.innerHTML = sRendered;
if ( oCol.bUseRendered )
{
/* Use the rendered data for filtering / sorting */
_fnSetCellData( oSettings, iRow, iColumn, sRendered );
}
}
/* Classes */
if ( bClass )
{
nCell.className += ' '+oCol.sClass;
}
/* Column visibility */
if ( !bVisible )
{
oData._anHidden[iColumn] = nCell;
nCell.parentNode.removeChild( nCell );
}
else
{
oData._anHidden[iColumn] = null;
}
if ( oCol.fnCreatedCell )
{
oCol.fnCreatedCell.call( oSettings.oInstance,
nCell, _fnGetCellData( oSettings, iRow, iColumn, 'display' ), oData._aData, iRow, iColumn
);
}
}
}
}
/* Row created callbacks */
if ( oSettings.aoRowCreatedCallback.length !== 0 )
{
for ( i=0, iLen=oSettings.aoData.length ; i<iLen ; i++ )
{
oData = oSettings.aoData[i];
_fnCallbackFire( oSettings, 'aoRowCreatedCallback', null, [oData.nTr, oData._aData, i] );
}
}
}
/**
* Take a TR element and convert it to an index in aoData
* @param {object} oSettings dataTables settings object
* @param {node} n the TR element to find
* @returns {int} index if the node is found, null if not
* @memberof DataTable#oApi
*/
function _fnNodeToDataIndex( oSettings, n )
{
return (n._DT_RowIndex!==undefined) ? n._DT_RowIndex : null;
}
/**
* Take a TD element and convert it into a column data index (not the visible index)
* @param {object} oSettings dataTables settings object
* @param {int} iRow The row number the TD/TH can be found in
* @param {node} n The TD/TH element to find
* @returns {int} index if the node is found, -1 if not
* @memberof DataTable#oApi
*/
function _fnNodeToColumnIndex( oSettings, iRow, n )
{
var anCells = _fnGetTdNodes( oSettings, iRow );
for ( var i=0, iLen=oSettings.aoColumns.length ; i<iLen ; i++ )
{
if ( anCells[i] === n )
{
return i;
}
}
return -1;
}
/**
* Get an array of data for a given row from the internal data cache
* @param {object} oSettings dataTables settings object
* @param {int} iRow aoData row id
* @param {string} sSpecific data get type ('type' 'filter' 'sort')
* @param {array} aiColumns Array of column indexes to get data from
* @returns {array} Data array
* @memberof DataTable#oApi
*/
function _fnGetRowData( oSettings, iRow, sSpecific, aiColumns )
{
var out = [];
for ( var i=0, iLen=aiColumns.length ; i<iLen ; i++ )
{
out.push( _fnGetCellData( oSettings, iRow, aiColumns[i], sSpecific ) );
}
return out;
}
/**
* Get the data for a given cell from the internal cache, taking into account data mapping
* @param {object} oSettings dataTables settings object
* @param {int} iRow aoData row id
* @param {int} iCol Column index
* @param {string} sSpecific data get type ('display', 'type' 'filter' 'sort')
* @returns {*} Cell data
* @memberof DataTable#oApi
*/
function _fnGetCellData( oSettings, iRow, iCol, sSpecific )
{
var sData;
var oCol = oSettings.aoColumns[iCol];
var oData = oSettings.aoData[iRow]._aData;
if ( (sData=oCol.fnGetData( oData, sSpecific )) === undefined )
{
if ( oSettings.iDrawError != oSettings.iDraw && oCol.sDefaultContent === null )
{
_fnLog( oSettings, 0, "Requested unknown parameter "+
(typeof oCol.mData=='function' ? '{mData function}' : "'"+oCol.mData+"'")+
" from the data source for row "+iRow );
oSettings.iDrawError = oSettings.iDraw;
}
return oCol.sDefaultContent;
}
/* When the data source is null, we can use default column data */
if ( sData === null && oCol.sDefaultContent !== null )
{
sData = oCol.sDefaultContent;
}
else if ( typeof sData === 'function' )
{
/* If the data source is a function, then we run it and use the return */
return sData();
}
if ( sSpecific == 'display' && sData === null )
{
return '';
}
return sData;
}
/**
* Set the value for a specific cell, into the internal data cache
* @param {object} oSettings dataTables settings object
* @param {int} iRow aoData row id
* @param {int} iCol Column index
* @param {*} val Value to set
* @memberof DataTable#oApi
*/
function _fnSetCellData( oSettings, iRow, iCol, val )
{
var oCol = oSettings.aoColumns[iCol];
var oData = oSettings.aoData[iRow]._aData;
oCol.fnSetData( oData, val );
}
// Private variable that is used to match array syntax in the data property object
var __reArray = /\[.*?\]$/;
/**
* Return a function that can be used to get data from a source object, taking
* into account the ability to use nested objects as a source
* @param {string|int|function} mSource The data source for the object
* @returns {function} Data get function
* @memberof DataTable#oApi
*/
function _fnGetObjectDataFn( mSource )
{
if ( mSource === null )
{
/* Give an empty string for rendering / sorting etc */
return function (data, type) {
return null;
};
}
else if ( typeof mSource === 'function' )
{
return function (data, type, extra) {
return mSource( data, type, extra );
};
}
else if ( typeof mSource === 'string' && (mSource.indexOf('.') !== -1 || mSource.indexOf('[') !== -1) )
{
/* If there is a . in the source string then the data source is in a
* nested object so we loop over the data for each level to get the next
* level down. On each loop we test for undefined, and if found immediately
* return. This allows entire objects to be missing and sDefaultContent to
* be used if defined, rather than throwing an error
*/
var fetchData = function (data, type, src) {
var a = src.split('.');
var arrayNotation, out, innerSrc;
if ( src !== "" )
{
for ( var i=0, iLen=a.length ; i<iLen ; i++ )
{
// Check if we are dealing with an array notation request
arrayNotation = a[i].match(__reArray);
if ( arrayNotation ) {
a[i] = a[i].replace(__reArray, '');
// Condition allows simply [] to be passed in
if ( a[i] !== "" ) {
data = data[ a[i] ];
}
out = [];
// Get the remainder of the nested object to get
a.splice( 0, i+1 );
innerSrc = a.join('.');
// Traverse each entry in the array getting the properties requested
for ( var j=0, jLen=data.length ; j<jLen ; j++ ) {
out.push( fetchData( data[j], type, innerSrc ) );
}
// If a string is given in between the array notation indicators, that
// is used to join the strings together, otherwise an array is returned
var join = arrayNotation[0].substring(1, arrayNotation[0].length-1);
data = (join==="") ? out : out.join(join);
// The inner call to fetchData has already traversed through the remainder
// of the source requested, so we exit from the loop
break;
}
if ( data === null || data[ a[i] ] === undefined )
{
return undefined;
}
data = data[ a[i] ];
}
}
return data;
};
return function (data, type) {
return fetchData( data, type, mSource );
};
}
else
{
/* Array or flat object mapping */
return function (data, type) {
return data[mSource];
};
}
}
/**
* Return a function that can be used to set data from a source object, taking
* into account the ability to use nested objects as a source
* @param {string|int|function} mSource The data source for the object
* @returns {function} Data set function
* @memberof DataTable#oApi
*/
function _fnSetObjectDataFn( mSource )
{
if ( mSource === null )
{
/* Nothing to do when the data source is null */
return function (data, val) {};
}
else if ( typeof mSource === 'function' )
{
return function (data, val) {
mSource( data, 'set', val );
};
}
else if ( typeof mSource === 'string' && (mSource.indexOf('.') !== -1 || mSource.indexOf('[') !== -1) )
{
/* Like the get, we need to get data from a nested object */
var setData = function (data, val, src) {
var a = src.split('.'), b;
var arrayNotation, o, innerSrc;
for ( var i=0, iLen=a.length-1 ; i<iLen ; i++ )
{
// Check if we are dealing with an array notation request
arrayNotation = a[i].match(__reArray);
if ( arrayNotation )
{
a[i] = a[i].replace(__reArray, '');
data[ a[i] ] = [];
// Get the remainder of the nested object to set so we can recurse
b = a.slice();
b.splice( 0, i+1 );
innerSrc = b.join('.');
// Traverse each entry in the array setting the properties requested
for ( var j=0, jLen=val.length ; j<jLen ; j++ )
{
o = {};
setData( o, val[j], innerSrc );
data[ a[i] ].push( o );
}
// The inner call to setData has already traversed through the remainder
// of the source and has set the data, thus we can exit here
return;
}
// If the nested object doesn't currently exist - since we are
// trying to set the value - create it
if ( data[ a[i] ] === null || data[ a[i] ] === undefined )
{
data[ a[i] ] = {};
}
data = data[ a[i] ];
}
// If array notation is used, we just want to strip it and use the property name
// and assign the value. If it isn't used, then we get the result we want anyway
data[ a[a.length-1].replace(__reArray, '') ] = val;
};
return function (data, val) {
return setData( data, val, mSource );
};
}
else
{
/* Array or flat object mapping */
return function (data, val) {
data[mSource] = val;
};
}
}
/**
* Return an array with the full table data
* @param {object} oSettings dataTables settings object
* @returns array {array} aData Master data array
* @memberof DataTable#oApi
*/
function _fnGetDataMaster ( oSettings )
{
var aData = [];
var iLen = oSettings.aoData.length;
for ( var i=0 ; i<iLen; i++ )
{
aData.push( oSettings.aoData[i]._aData );
}
return aData;
}
/**
* Nuke the table
* @param {object} oSettings dataTables settings object
* @memberof DataTable#oApi
*/
function _fnClearTable( oSettings )
{
oSettings.aoData.splice( 0, oSettings.aoData.length );
oSettings.aiDisplayMaster.splice( 0, oSettings.aiDisplayMaster.length );
oSettings.aiDisplay.splice( 0, oSettings.aiDisplay.length );
_fnCalculateEnd( oSettings );
}
/**
* Take an array of integers (index array) and remove a target integer (value - not
* the key!)
* @param {array} a Index array to target
* @param {int} iTarget value to find
* @memberof DataTable#oApi
*/
function _fnDeleteIndex( a, iTarget )
{
var iTargetIndex = -1;
for ( var i=0, iLen=a.length ; i<iLen ; i++ )
{
if ( a[i] == iTarget )
{
iTargetIndex = i;
}
else if ( a[i] > iTarget )
{
a[i]--;
}
}
if ( iTargetIndex != -1 )
{
a.splice( iTargetIndex, 1 );
}
}
/**
* Call the developer defined fnRender function for a given cell (row/column) with
* the required parameters and return the result.
* @param {object} oSettings dataTables settings object
* @param {int} iRow aoData index for the row
* @param {int} iCol aoColumns index for the column
* @returns {*} Return of the developer's fnRender function
* @memberof DataTable#oApi
*/
function _fnRender( oSettings, iRow, iCol )
{
var oCol = oSettings.aoColumns[iCol];
return oCol.fnRender( {
"iDataRow": iRow,
"iDataColumn": iCol,
"oSettings": oSettings,
"aData": oSettings.aoData[iRow]._aData,
"mDataProp": oCol.mData
}, _fnGetCellData(oSettings, iRow, iCol, 'display') );
}