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/*! DataTables 1.10.19
* ©2008-2018 SpryMedia Ltd - datatables.net/license
*/
/**
* @summary DataTables
* @description Paginate, search and order HTML tables
* @version 1.10.19
* @file jquery.dataTables.js
* @author SpryMedia Ltd
* @contact www.datatables.net
* @copyright Copyright 2008-2018 SpryMedia Ltd.
*
* This source file is free software, available under the following license:
* MIT license - http://datatables.net/license
*
* This source file is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
* or FITNESS FOR A PARTICULAR PURPOSE. See the license files for details.
*
* For details please refer to: http://www.datatables.net
*/
/*jslint evil: true, undef: true, browser: true */
/*globals $,require,jQuery,define,_selector_run,_selector_opts,_selector_first,_selector_row_indexes,_ext,_Api,_api_register,_api_registerPlural,_re_new_lines,_re_html,_re_formatted_numeric,_re_escape_regex,_empty,_intVal,_numToDecimal,_isNumber,_isHtml,_htmlNumeric,_pluck,_pluck_order,_range,_stripHtml,_unique,_fnBuildAjax,_fnAjaxUpdate,_fnAjaxParameters,_fnAjaxUpdateDraw,_fnAjaxDataSrc,_fnAddColumn,_fnColumnOptions,_fnAdjustColumnSizing,_fnVisibleToColumnIndex,_fnColumnIndexToVisible,_fnVisbleColumns,_fnGetColumns,_fnColumnTypes,_fnApplyColumnDefs,_fnHungarianMap,_fnCamelToHungarian,_fnLanguageCompat,_fnBrowserDetect,_fnAddData,_fnAddTr,_fnNodeToDataIndex,_fnNodeToColumnIndex,_fnGetCellData,_fnSetCellData,_fnSplitObjNotation,_fnGetObjectDataFn,_fnSetObjectDataFn,_fnGetDataMaster,_fnClearTable,_fnDeleteIndex,_fnInvalidate,_fnGetRowElements,_fnCreateTr,_fnBuildHead,_fnDrawHead,_fnDraw,_fnReDraw,_fnAddOptionsHtml,_fnDetectHeader,_fnGetUniqueThs,_fnFeatureHtmlFilter,_fnFilterComplete,_fnFilterCustom,_fnFilterColumn,_fnFilter,_fnFilterCreateSearch,_fnEscapeRegex,_fnFilterData,_fnFeatureHtmlInfo,_fnUpdateInfo,_fnInfoMacros,_fnInitialise,_fnInitComplete,_fnLengthChange,_fnFeatureHtmlLength,_fnFeatureHtmlPaginate,_fnPageChange,_fnFeatureHtmlProcessing,_fnProcessingDisplay,_fnFeatureHtmlTable,_fnScrollDraw,_fnApplyToChildren,_fnCalculateColumnWidths,_fnThrottle,_fnConvertToWidth,_fnGetWidestNode,_fnGetMaxLenString,_fnStringToCss,_fnSortFlatten,_fnSort,_fnSortAria,_fnSortListener,_fnSortAttachListener,_fnSortingClasses,_fnSortData,_fnSaveState,_fnLoadState,_fnSettingsFromNode,_fnLog,_fnMap,_fnBindAction,_fnCallbackReg,_fnCallbackFire,_fnLengthOverflow,_fnRenderer,_fnDataSource,_fnRowAttributes*/
(function( factory ) {
"use strict";
if ( typeof define === 'function' && define.amd ) {
// AMD
define( ['jquery'], function ( $ ) {
return factory( $, window, document );
} );
}
else if ( typeof exports === 'object' ) {
// CommonJS
module.exports = function (root, $) {
if ( ! root ) {
// CommonJS environments without a window global must pass a
// root. This will give an error otherwise
root = window;
}
if ( ! $ ) {
$ = typeof window !== 'undefined' ? // jQuery's factory checks for a global window
require('jquery') :
require('jquery')( root );
}
return factory( $, root, root.document );
};
}
else {
// Browser
factory( jQuery, window, document );
}
}
(function( $, window, document, undefined ) {
"use strict";
/**
* DataTables is a plug-in for the jQuery Javascript library. It is a highly
* flexible tool, based upon the foundations of progressive enhancement,
* which will add advanced interaction controls to any HTML table. For a
* full list of features please refer to
* [DataTables.net](href="http://datatables.net).
*
* Note that the `DataTable` object is not a global variable but is aliased
* to `jQuery.fn.DataTable` and `jQuery.fn.dataTable` through which it may
* be accessed.
*
* @class
* @param {object} [init={}] Configuration object for DataTables. Options
* are defined by {@link DataTable.defaults}
* @requires jQuery 1.7+
*
* @example
* // Basic initialisation
* $(document).ready( function {
* $('#example').dataTable();
* } );
*
* @example
* // Initialisation with configuration options - in this case, disable
* // pagination and sorting.
* $(document).ready( function {
* $('#example').dataTable( {
* "paginate": false,
* "sort": false
* } );
* } );
*/
var DataTable = function ( options )
{
/**
* Perform a jQuery selector action on the table's TR elements (from the tbody) and
* return the resulting jQuery object.
* @param {string|node|jQuery} sSelector jQuery selector or node collection to act on
* @param {object} [oOpts] Optional parameters for modifying the rows to be included
* @param {string} [oOpts.filter=none] Select TR elements that meet the current filter
* criterion ("applied") or all TR elements (i.e. no filter).
* @param {string} [oOpts.order=current] Order of the TR elements in the processed array.
* Can be either 'current', whereby the current sorting of the table is used, or
* 'original' whereby the original order the data was read into the table is used.
* @param {string} [oOpts.page=all] Limit the selection to the currently displayed page
* ("current") or not ("all"). If 'current' is given, then order is assumed to be
* 'current' and filter is 'applied', regardless of what they might be given as.
* @returns {object} jQuery object, filtered by the given selector.
* @dtopt API
* @deprecated Since v1.10
*
* @example
* $(document).ready(function() {
* var oTable = $('#example').dataTable();
*
* // Highlight every second row
* oTable.$('tr:odd').css('backgroundColor', 'blue');
* } );
*
* @example
* $(document).ready(function() {
* var oTable = $('#example').dataTable();
*
* // Filter to rows with 'Webkit' in them, add a background colour and then
* // remove the filter, thus highlighting the 'Webkit' rows only.
* oTable.fnFilter('Webkit');
* oTable.$('tr', {"search": "applied"}).css('backgroundColor', 'blue');
* oTable.fnFilter('');
* } );
*/
this.$ = function ( sSelector, oOpts )
{
return this.api(true).$( sSelector, oOpts );
};
/**
* Almost identical to $ in operation, but in this case returns the data for the matched
* rows - as such, the jQuery selector used should match TR row nodes or TD/TH cell nodes
* rather than any descendants, so the data can be obtained for the row/cell. If matching
* rows are found, the data returned is the original data array/object that was used to
* create the row (or a generated array if from a DOM source).
*
* This method is often useful in-combination with $ where both functions are given the
* same parameters and the array indexes will match identically.
* @param {string|node|jQuery} sSelector jQuery selector or node collection to act on
* @param {object} [oOpts] Optional parameters for modifying the rows to be included
* @param {string} [oOpts.filter=none] Select elements that meet the current filter
* criterion ("applied") or all elements (i.e. no filter).
* @param {string} [oOpts.order=current] Order of the data in the processed array.
* Can be either 'current', whereby the current sorting of the table is used, or
* 'original' whereby the original order the data was read into the table is used.
* @param {string} [oOpts.page=all] Limit the selection to the currently displayed page
* ("current") or not ("all"). If 'current' is given, then order is assumed to be
* 'current' and filter is 'applied', regardless of what they might be given as.
* @returns {array} Data for the matched elements. If any elements, as a result of the
* selector, were not TR, TD or TH elements in the DataTable, they will have a null
* entry in the array.
* @dtopt API
* @deprecated Since v1.10
*
* @example
* $(document).ready(function() {
* var oTable = $('#example').dataTable();
*
* // Get the data from the first row in the table
* var data = oTable._('tr:first');
*
* // Do something useful with the data
* alert( "First cell is: "+data[0] );
* } );
*
* @example
* $(document).ready(function() {
* var oTable = $('#example').dataTable();
*
* // Filter to 'Webkit' and get all data for
* oTable.fnFilter('Webkit');
* var data = oTable._('tr', {"search": "applied"});
*
* // Do something with the data
* alert( data.length+" rows matched the search" );
* } );
*/
this._ = function ( sSelector, oOpts )
{
return this.api(true).rows( sSelector, oOpts ).data();
};
/**
* Create a DataTables Api instance, with the currently selected tables for
* the Api's context.
* @param {boolean} [traditional=false] Set the API instance's context to be
* only the table referred to by the `DataTable.ext.iApiIndex` option, as was
* used in the API presented by DataTables 1.9- (i.e. the traditional mode),
* or if all tables captured in the jQuery object should be used.
* @return {DataTables.Api}
*/
this.api = function ( traditional )
{
return traditional ?
new _Api(
_fnSettingsFromNode( this[ _ext.iApiIndex ] )
) :
new _Api( this );
};
/**
* Add a single new row or multiple rows of data to the table. Please note
* that this is suitable for client-side processing only - if you are using
* server-side processing (i.e. "bServerSide": true), then to add data, you
* must add it to the data source, i.e. the server-side, through an Ajax call.
* @param {array|object} data The data to be added to the table. This can be:
* <ul>
* <li>1D array of data - add a single row with the data provided</li>
* <li>2D array of arrays - add multiple rows in a single call</li>
* <li>object - data object when using <i>mData</i></li>
* <li>array of objects - multiple data objects when using <i>mData</i></li>
* </ul>
* @param {bool} [redraw=true] redraw the table or not
* @returns {array} An array of integers, representing the list of indexes in
* <i>aoData</i> ({@link DataTable.models.oSettings}) that have been added to
* the table.
* @dtopt API
* @deprecated Since v1.10
*
* @example
* // Global var for counter
* var giCount = 2;
*
* $(document).ready(function() {
* $('#example').dataTable();
* } );
*
* function fnClickAddRow() {
* $('#example').dataTable().fnAddData( [
* giCount+".1",
* giCount+".2",
* giCount+".3",
* giCount+".4" ]
* );
*
* giCount++;
* }
*/
this.fnAddData = function( data, redraw )
{
var api = this.api( true );
/* Check if we want to add multiple rows or not */
var rows = $.isArray(data) && ( $.isArray(data[0]) || $.isPlainObject(data[0]) ) ?
api.rows.add( data ) :
api.row.add( data );
if ( redraw === undefined || redraw ) {
api.draw();
}
return rows.flatten().toArray();
};
/**
* This function will make DataTables recalculate the column sizes, based on the data
* contained in the table and the sizes applied to the columns (in the DOM, CSS or
* through the sWidth parameter). This can be useful when the width of the table's
* parent element changes (for example a window resize).
* @param {boolean} [bRedraw=true] Redraw the table or not, you will typically want to
* @dtopt API
* @deprecated Since v1.10
*
* @example
* $(document).ready(function() {
* var oTable = $('#example').dataTable( {
* "sScrollY": "200px",
* "bPaginate": false
* } );
*
* $(window).on('resize', function () {
* oTable.fnAdjustColumnSizing();
* } );
* } );
*/
this.fnAdjustColumnSizing = function ( bRedraw )
{
var api = this.api( true ).columns.adjust();
var settings = api.settings()[0];
var scroll = settings.oScroll;
if ( bRedraw === undefined || bRedraw ) {
api.draw( false );
}
else if ( scroll.sX !== "" || scroll.sY !== "" ) {
/* If not redrawing, but scrolling, we want to apply the new column sizes anyway */
_fnScrollDraw( settings );
}
};
/**
* Quickly and simply clear a table
* @param {bool} [bRedraw=true] redraw the table or not
* @dtopt API
* @deprecated Since v1.10
*
* @example
* $(document).ready(function() {
* var oTable = $('#example').dataTable();
*
* // Immediately 'nuke' the current rows (perhaps waiting for an Ajax callback...)
* oTable.fnClearTable();
* } );
*/
this.fnClearTable = function( bRedraw )
{
var api = this.api( true ).clear();
if ( bRedraw === undefined || bRedraw ) {
api.draw();
}
};
/**
* The exact opposite of 'opening' a row, this function will close any rows which
* are currently 'open'.
* @param {node} nTr the table row to 'close'
* @returns {int} 0 on success, or 1 if failed (can't find the row)
* @dtopt API
* @deprecated Since v1.10
*
* @example
* $(document).ready(function() {
* var oTable;
*
* // 'open' an information row when a row is clicked on
* $('#example tbody tr').click( function () {
* if ( oTable.fnIsOpen(this) ) {
* oTable.fnClose( this );
* } else {
* oTable.fnOpen( this, "Temporary row opened", "info_row" );
* }
* } );
*
* oTable = $('#example').dataTable();
* } );
*/
this.fnClose = function( nTr )
{
this.api( true ).row( nTr ).child.hide();
};
/**
* Remove a row for the table
* @param {mixed} target The index of the row from aoData to be deleted, or
* the TR element you want to delete
* @param {function|null} [callBack] Callback function
* @param {bool} [redraw=true] Redraw the table or not
* @returns {array} The row that was deleted
* @dtopt API
* @deprecated Since v1.10
*
* @example
* $(document).ready(function() {
* var oTable = $('#example').dataTable();
*
* // Immediately remove the first row
* oTable.fnDeleteRow( 0 );
* } );
*/
this.fnDeleteRow = function( target, callback, redraw )
{
var api = this.api( true );
var rows = api.rows( target );
var settings = rows.settings()[0];
var data = settings.aoData[ rows[0][0] ];
rows.remove();
if ( callback ) {
callback.call( this, settings, data );
}
if ( redraw === undefined || redraw ) {
api.draw();
}
return data;
};
/**
* Restore the table to it's original state in the DOM by removing all of DataTables
* enhancements, alterations to the DOM structure of the table and event listeners.
* @param {boolean} [remove=false] Completely remove the table from the DOM
* @dtopt API
* @deprecated Since v1.10
*
* @example
* $(document).ready(function() {
* // This example is fairly pointless in reality, but shows how fnDestroy can be used
* var oTable = $('#example').dataTable();
* oTable.fnDestroy();
* } );
*/
this.fnDestroy = function ( remove )
{
this.api( true ).destroy( remove );
};
/**
* Redraw the table
* @param {bool} [complete=true] Re-filter and resort (if enabled) the table before the draw.
* @dtopt API
* @deprecated Since v1.10
*
* @example
* $(document).ready(function() {
* var oTable = $('#example').dataTable();
*
* // Re-draw the table - you wouldn't want to do it here, but it's an example :-)
* oTable.fnDraw();
* } );
*/
this.fnDraw = function( complete )
{
// Note that this isn't an exact match to the old call to _fnDraw - it takes
// into account the new data, but can hold position.
this.api( true ).draw( complete );
};
/**
* Filter the input based on data
* @param {string} sInput String to filter the table on
* @param {int|null} [iColumn] Column to limit filtering to
* @param {bool} [bRegex=false] Treat as regular expression or not
* @param {bool} [bSmart=true] Perform smart filtering or not
* @param {bool} [bShowGlobal=true] Show the input global filter in it's input box(es)
* @param {bool} [bCaseInsensitive=true] Do case-insensitive matching (true) or not (false)
* @dtopt API
* @deprecated Since v1.10
*
* @example
* $(document).ready(function() {
* var oTable = $('#example').dataTable();
*
* // Sometime later - filter...
* oTable.fnFilter( 'test string' );
* } );
*/
this.fnFilter = function( sInput, iColumn, bRegex, bSmart, bShowGlobal, bCaseInsensitive )
{
var api = this.api( true );
if ( iColumn === null || iColumn === undefined ) {
api.search( sInput, bRegex, bSmart, bCaseInsensitive );
}
else {
api.column( iColumn ).search( sInput, bRegex, bSmart, bCaseInsensitive );
}
api.draw();
};
/**
* Get the data for the whole table, an individual row or an individual cell based on the
* provided parameters.
* @param {int|node} [src] A TR row node, TD/TH cell node or an integer. If given as
* a TR node then the data source for the whole row will be returned. If given as a
* TD/TH cell node then iCol will be automatically calculated and the data for the
* cell returned. If given as an integer, then this is treated as the aoData internal
* data index for the row (see fnGetPosition) and the data for that row used.
* @param {int} [col] Optional column index that you want the data of.
* @returns {array|object|string} If mRow is undefined, then the data for all rows is
* returned. If mRow is defined, just data for that row, and is iCol is
* defined, only data for the designated cell is returned.
* @dtopt API
* @deprecated Since v1.10
*
* @example
* // Row data
* $(document).ready(function() {
* oTable = $('#example').dataTable();
*
* oTable.$('tr').click( function () {
* var data = oTable.fnGetData( this );
* // ... do something with the array / object of data for the row
* } );
* } );
*
* @example
* // Individual cell data
* $(document).ready(function() {
* oTable = $('#example').dataTable();
*
* oTable.$('td').click( function () {
* var sData = oTable.fnGetData( this );
* alert( 'The cell clicked on had the value of '+sData );
* } );
* } );
*/
this.fnGetData = function( src, col )
{
var api = this.api( true );
if ( src !== undefined ) {
var type = src.nodeName ? src.nodeName.toLowerCase() : '';
return col !== undefined || type == 'td' || type == 'th' ?
api.cell( src, col ).data() :
api.row( src ).data() || null;
}
return api.data().toArray();
};
/**
* Get an array of the TR nodes that are used in the table's body. Note that you will
* typically want to use the '$' API method in preference to this as it is more
* flexible.
* @param {int} [iRow] Optional row index for the TR element you want
* @returns {array|node} If iRow is undefined, returns an array of all TR elements
* in the table's body, or iRow is defined, just the TR element requested.
* @dtopt API
* @deprecated Since v1.10
*
* @example
* $(document).ready(function() {
* var oTable = $('#example').dataTable();
*
* // Get the nodes from the table
* var nNodes = oTable.fnGetNodes( );
* } );
*/
this.fnGetNodes = function( iRow )
{
var api = this.api( true );
return iRow !== undefined ?
api.row( iRow ).node() :
api.rows().nodes().flatten().toArray();
};
/**
* Get the array indexes of a particular cell from it's DOM element
* and column index including hidden columns
* @param {node} node this can either be a TR, TD or TH in the table's body
* @returns {int} If nNode is given as a TR, then a single index is returned, or
* if given as a cell, an array of [row index, column index (visible),
* column index (all)] is given.
* @dtopt API
* @deprecated Since v1.10
*
* @example
* $(document).ready(function() {
* $('#example tbody td').click( function () {
* // Get the position of the current data from the node
* var aPos = oTable.fnGetPosition( this );
*
* // Get the data array for this row
* var aData = oTable.fnGetData( aPos[0] );
*
* // Update the data array and return the value
* aData[ aPos[1] ] = 'clicked';
* this.innerHTML = 'clicked';
* } );
*
* // Init DataTables
* oTable = $('#example').dataTable();
* } );
*/
this.fnGetPosition = function( node )
{
var api = this.api( true );
var nodeName = node.nodeName.toUpperCase();
if ( nodeName == 'TR' ) {
return api.row( node ).index();
}
else if ( nodeName == 'TD' || nodeName == 'TH' ) {
var cell = api.cell( node ).index();
return [
cell.row,
cell.columnVisible,
cell.column
];
}
return null;
};
/**
* Check to see if a row is 'open' or not.
* @param {node} nTr the table row to check
* @returns {boolean} true if the row is currently open, false otherwise
* @dtopt API
* @deprecated Since v1.10
*
* @example
* $(document).ready(function() {
* var oTable;
*
* // 'open' an information row when a row is clicked on
* $('#example tbody tr').click( function () {
* if ( oTable.fnIsOpen(this) ) {
* oTable.fnClose( this );
* } else {
* oTable.fnOpen( this, "Temporary row opened", "info_row" );
* }
* } );
*
* oTable = $('#example').dataTable();
* } );
*/
this.fnIsOpen = function( nTr )
{
return this.api( true ).row( nTr ).child.isShown();
};
/**
* This function will place a new row directly after a row which is currently
* on display on the page, with the HTML contents that is passed into the
* function. This can be used, for example, to ask for confirmation that a
* particular record should be deleted.
* @param {node} nTr The table row to 'open'
* @param {string|node|jQuery} mHtml The HTML to put into the row
* @param {string} sClass Class to give the new TD cell
* @returns {node} The row opened. Note that if the table row passed in as the
* first parameter, is not found in the table, this method will silently
* return.
* @dtopt API
* @deprecated Since v1.10
*
* @example
* $(document).ready(function() {
* var oTable;
*
* // 'open' an information row when a row is clicked on
* $('#example tbody tr').click( function () {
* if ( oTable.fnIsOpen(this) ) {
* oTable.fnClose( this );
* } else {
* oTable.fnOpen( this, "Temporary row opened", "info_row" );
* }
* } );
*
* oTable = $('#example').dataTable();
* } );
*/
this.fnOpen = function( nTr, mHtml, sClass )
{
return this.api( true )
.row( nTr )
.child( mHtml, sClass )
.show()
.child()[0];
};
/**
* Change the pagination - provides the internal logic for pagination in a simple API
* function. With this function you can have a DataTables table go to the next,
* previous, first or last pages.
* @param {string|int} mAction Paging action to take: "first", "previous", "next" or "last"
* or page number to jump to (integer), note that page 0 is the first page.
* @param {bool} [bRedraw=true] Redraw the table or not
* @dtopt API
* @deprecated Since v1.10
*
* @example
* $(document).ready(function() {
* var oTable = $('#example').dataTable();
* oTable.fnPageChange( 'next' );
* } );
*/
this.fnPageChange = function ( mAction, bRedraw )
{
var api = this.api( true ).page( mAction );
if ( bRedraw === undefined || bRedraw ) {
api.draw(false);
}
};
/**
* Show a particular column
* @param {int} iCol The column whose display should be changed
* @param {bool} bShow Show (true) or hide (false) the column
* @param {bool} [bRedraw=true] Redraw the table or not
* @dtopt API
* @deprecated Since v1.10
*
* @example
* $(document).ready(function() {
* var oTable = $('#example').dataTable();
*
* // Hide the second column after initialisation
* oTable.fnSetColumnVis( 1, false );
* } );
*/
this.fnSetColumnVis = function ( iCol, bShow, bRedraw )
{
var api = this.api( true ).column( iCol ).visible( bShow );
if ( bRedraw === undefined || bRedraw ) {
api.columns.adjust().draw();
}
};
/**
* Get the settings for a particular table for external manipulation
* @returns {object} DataTables settings object. See
* {@link DataTable.models.oSettings}
* @dtopt API
* @deprecated Since v1.10
*
* @example
* $(document).ready(function() {
* var oTable = $('#example').dataTable();
* var oSettings = oTable.fnSettings();
*
* // Show an example parameter from the settings
* alert( oSettings._iDisplayStart );
* } );
*/
this.fnSettings = function()
{
return _fnSettingsFromNode( this[_ext.iApiIndex] );
};
/**
* Sort the table by a particular column
* @param {int} iCol the data index to sort on. Note that this will not match the
* 'display index' if you have hidden data entries
* @dtopt API
* @deprecated Since v1.10
*
* @example
* $(document).ready(function() {
* var oTable = $('#example').dataTable();
*
* // Sort immediately with columns 0 and 1
* oTable.fnSort( [ [0,'asc'], [1,'asc'] ] );
* } );
*/
this.fnSort = function( aaSort )
{
this.api( true ).order( aaSort ).draw();
};
/**
* Attach a sort listener to an element for a given column
* @param {node} nNode the element to attach the sort listener to
* @param {int} iColumn the column that a click on this node will sort on
* @param {function} [fnCallback] callback function when sort is run
* @dtopt API
* @deprecated Since v1.10
*
* @example
* $(document).ready(function() {
* var oTable = $('#example').dataTable();
*
* // Sort on column 1, when 'sorter' is clicked on
* oTable.fnSortListener( document.getElementById('sorter'), 1 );
* } );
*/
this.fnSortListener = function( nNode, iColumn, fnCallback )
{
this.api( true ).order.listener( nNode, iColumn, fnCallback );
};
/**
* Update a table cell or row - this method will accept either a single value to
* update the cell with, an array of values with one element for each column or
* an object in the same format as the original data source. The function is
* self-referencing in order to make the multi column updates easier.
* @param {object|array|string} mData Data to update the cell/row with
* @param {node|int} mRow TR element you want to update or the aoData index
* @param {int} [iColumn] The column to update, give as null or undefined to
* update a whole row.
* @param {bool} [bRedraw=true] Redraw the table or not
* @param {bool} [bAction=true] Perform pre-draw actions or not
* @returns {int} 0 on success, 1 on error
* @dtopt API
* @deprecated Since v1.10
*
* @example
* $(document).ready(function() {
* var oTable = $('#example').dataTable();
* oTable.fnUpdate( 'Example update', 0, 0 ); // Single cell
* oTable.fnUpdate( ['a', 'b', 'c', 'd', 'e'], $('tbody tr')[0] ); // Row
* } );
*/
this.fnUpdate = function( mData, mRow, iColumn, bRedraw, bAction )
{
var api = this.api( true );
if ( iColumn === undefined || iColumn === null ) {
api.row( mRow ).data( mData );
}
else {
api.cell( mRow, iColumn ).data( mData );
}
if ( bAction === undefined || bAction ) {
api.columns.adjust();
}
if ( bRedraw === undefined || bRedraw ) {
api.draw();
}
return 0;
};
/**
* Provide a common method for plug-ins to check the version of DataTables being used, in order
* to ensure compatibility.
* @param {string} sVersion Version string to check for, in the format "X.Y.Z". Note that the
* formats "X" and "X.Y" are also acceptable.
* @returns {boolean} true if this version of DataTables is greater or equal to the required
* version, or false if this version of DataTales is not suitable
* @method
* @dtopt API
* @deprecated Since v1.10
*
* @example
* $(document).ready(function() {
* var oTable = $('#example').dataTable();
* alert( oTable.fnVersionCheck( '1.9.0' ) );
* } );
*/
this.fnVersionCheck = _ext.fnVersionCheck;
var _that = this;
var emptyInit = options === undefined;
var len = this.length;
if ( emptyInit ) {
options = {};
}
this.oApi = this.internal = _ext.internal;
// Extend with old style plug-in API methods
for ( var fn in DataTable.ext.internal ) {
if ( fn ) {
this[fn] = _fnExternApiFunc(fn);
}
}
this.each(function() {
// For each initialisation we want to give it a clean initialisation
// object that can be bashed around
var o = {};
var oInit = len > 1 ? // optimisation for single table case
_fnExtend( o, options, true ) :
options;
/*global oInit,_that,emptyInit*/
var i=0, iLen, j, jLen, k, kLen;
var sId = this.getAttribute( 'id' );
var bInitHandedOff = false;
var defaults = DataTable.defaults;
var $this = $(this);
/* Sanity check */
if ( this.nodeName.toLowerCase() != 'table' )
{
_fnLog( null, 0, 'Non-table node initialisation ('+this.nodeName+')', 2 );
return;
}
/* Backwards compatibility for the defaults */
_fnCompatOpts( defaults );
_fnCompatCols( defaults.column );
/* Convert the camel-case defaults to Hungarian */
_fnCamelToHungarian( defaults, defaults, true );
_fnCamelToHungarian( defaults.column, defaults.column, true );
/* Setting up the initialisation object */
_fnCamelToHungarian( defaults, $.extend( oInit, $this.data() ) );
/* Check to see if we are re-initialising a table */
var allSettings = DataTable.settings;
for ( i=0, iLen=allSettings.length ; i<iLen ; i++ )
{
var s = allSettings[i];
/* Base check on table node */
if (
s.nTable == this ||
(s.nTHead && s.nTHead.parentNode == this) ||
(s.nTFoot && s.nTFoot.parentNode == this)
) {
var bRetrieve = oInit.bRetrieve !== undefined ? oInit.bRetrieve : defaults.bRetrieve;
var bDestroy = oInit.bDestroy !== undefined ? oInit.bDestroy : defaults.bDestroy;
if ( emptyInit || bRetrieve )
{
return s.oInstance;
}
else if ( bDestroy )
{
s.oInstance.fnDestroy();
break;
}
else
{
_fnLog( s, 0, 'Cannot reinitialise DataTable', 3 );
return;
}
}
/* If the element we are initialising has the same ID as a table which was previously
* initialised, but the table nodes don't match (from before) then we destroy the old
* instance by simply deleting it. This is under the assumption that the table has been
* destroyed by other methods. Anyone using non-id selectors will need to do this manually
*/
if ( s.sTableId == this.id )
{
allSettings.splice( i, 1 );
break;
}
}
/* Ensure the table has an ID - required for accessibility */
if ( sId === null || sId === "" )
{
sId = "DataTables_Table_"+(DataTable.ext._unique++);
this.id = sId;
}
/* Create the settings object for this table and set some of the default parameters */
var oSettings = $.extend( true, {}, DataTable.models.oSettings, {
"sDestroyWidth": $this[0].style.width,
"sInstance": sId,
"sTableId": sId
} );
oSettings.nTable = this;
oSettings.oApi = _that.internal;
oSettings.oInit = oInit;
allSettings.push( oSettings );
// Need to add the instance after the instance after the settings object has been added
// to the settings array, so we can self reference the table instance if more than one
oSettings.oInstance = (_that.length===1) ? _that : $this.dataTable();
// Backwards compatibility, before we apply all the defaults
_fnCompatOpts( oInit );
_fnLanguageCompat( oInit.oLanguage );
// If the length menu is given, but the init display length is not, use the length menu
if ( oInit.aLengthMenu && ! oInit.iDisplayLength )
{
oInit.iDisplayLength = $.isArray( oInit.aLengthMenu[0] ) ?
oInit.aLengthMenu[0][0] : oInit.aLengthMenu[0];
}
// Apply the defaults and init options to make a single init object will all
// options defined from defaults and instance options.
oInit = _fnExtend( $.extend( true, {}, defaults ), oInit );
// Map the initialisation options onto the settings object
_fnMap( oSettings.oFeatures, oInit, [
"bPaginate",
"bLengthChange",
"bFilter",
"bSort",
"bSortMulti",
"bInfo",
"bProcessing",
"bAutoWidth",
"bSortClasses",
"bServerSide",
"bDeferRender"
] );
_fnMap( oSettings, oInit, [
"asStripeClasses",
"ajax",
"fnServerData",
"fnFormatNumber",
"sServerMethod",
"aaSorting",
"aaSortingFixed",
"aLengthMenu",
"sPaginationType",
"sAjaxSource",
"sAjaxDataProp",
"iStateDuration",
"sDom",
"bSortCellsTop",
"iTabIndex",
"fnStateLoadCallback",
"fnStateSaveCallback",
"renderer",
"searchDelay",
"rowId",
[ "iCookieDuration", "iStateDuration" ], // backwards compat
[ "oSearch", "oPreviousSearch" ],
[ "aoSearchCols", "aoPreSearchCols" ],
[ "iDisplayLength", "_iDisplayLength" ]
] );
_fnMap( oSettings.oScroll, oInit, [
[ "sScrollX", "sX" ],
[ "sScrollXInner", "sXInner" ],
[ "sScrollY", "sY" ],
[ "bScrollCollapse", "bCollapse" ]
] );
_fnMap( oSettings.oLanguage, oInit, "fnInfoCallback" );
/* Callback functions which are array driven */
_fnCallbackReg( oSettings, 'aoDrawCallback', oInit.fnDrawCallback, 'user' );
_fnCallbackReg( oSettings, 'aoServerParams', oInit.fnServerParams, 'user' );
_fnCallbackReg( oSettings, 'aoStateSaveParams', oInit.fnStateSaveParams, 'user' );
_fnCallbackReg( oSettings, 'aoStateLoadParams', oInit.fnStateLoadParams, 'user' );
_fnCallbackReg( oSettings, 'aoStateLoaded', oInit.fnStateLoaded, 'user' );
_fnCallbackReg( oSettings, 'aoRowCallback', oInit.fnRowCallback, 'user' );
_fnCallbackReg( oSettings, 'aoRowCreatedCallback', oInit.fnCreatedRow, 'user' );
_fnCallbackReg( oSettings, 'aoHeaderCallback', oInit.fnHeaderCallback, 'user' );
_fnCallbackReg( oSettings, 'aoFooterCallback', oInit.fnFooterCallback, 'user' );
_fnCallbackReg( oSettings, 'aoInitComplete', oInit.fnInitComplete, 'user' );
_fnCallbackReg( oSettings, 'aoPreDrawCallback', oInit.fnPreDrawCallback, 'user' );
oSettings.rowIdFn = _fnGetObjectDataFn( oInit.rowId );
/* Browser support detection */
_fnBrowserDetect( oSettings );
var oClasses = oSettings.oClasses;
$.extend( oClasses, DataTable.ext.classes, oInit.oClasses );
$this.addClass( oClasses.sTable );
if ( oSettings.iInitDisplayStart === undefined )
{
/* Display start point, taking into account the save saving */
oSettings.iInitDisplayStart = oInit.iDisplayStart;
oSettings._iDisplayStart = oInit.iDisplayStart;
}
if ( oInit.iDeferLoading !== null )
{
oSettings.bDeferLoading = true;
var tmp = $.isArray( oInit.iDeferLoading );
oSettings._iRecordsDisplay = tmp ? oInit.iDeferLoading[0] : oInit.iDeferLoading;
oSettings._iRecordsTotal = tmp ? oInit.iDeferLoading[1] : oInit.iDeferLoading;
}
/* Language definitions */
var oLanguage = oSettings.oLanguage;
$.extend( true, oLanguage, oInit.oLanguage );
if ( oLanguage.sUrl )
{
/* Get the language definitions from a file - because this Ajax call makes the language
* get async to the remainder of this function we use bInitHandedOff to indicate that
* _fnInitialise will be fired by the returned Ajax handler, rather than the constructor
*/
$.ajax( {
dataType: 'json',
url: oLanguage.sUrl,
success: function ( json ) {
_fnLanguageCompat( json );
_fnCamelToHungarian( defaults.oLanguage, json );
$.extend( true, oLanguage, json );
_fnInitialise( oSettings );
},
error: function () {
// Error occurred loading language file, continue on as best we can
_fnInitialise( oSettings );
}
} );
bInitHandedOff = true;
}
/*
* Stripes
*/
if ( oInit.asStripeClasses === null )
{
oSettings.asStripeClasses =[
oClasses.sStripeOdd,
oClasses.sStripeEven
];
}
/* Remove row stripe classes if they are already on the table row */
var stripeClasses = oSettings.asStripeClasses;
var rowOne = $this.children('tbody').find('tr').eq(0);
if ( $.inArray( true, $.map( stripeClasses, function(el, i) {
return rowOne.hasClass(el);
} ) ) !== -1 ) {
$('tbody tr', this).removeClass( stripeClasses.join(' ') );
oSettings.asDestroyStripes = stripeClasses.slice();
}
/*
* Columns
* See if we should load columns automatically or use defined ones
*/
var anThs = [];
var aoColumnsInit;
var nThead = this.getElementsByTagName('thead');
if ( nThead.length !== 0 )
{
_fnDetectHeader( oSettings.aoHeader, nThead[0] );
anThs = _fnGetUniqueThs( oSettings );
}
/* If not given a column array, generate one with nulls */
if ( oInit.aoColumns === null )
{
aoColumnsInit = [];
for ( i=0, iLen=anThs.length ; i<iLen ; i++ )
{
aoColumnsInit.push( null );
}
}
else
{
aoColumnsInit = oInit.aoColumns;
}
/* Add the columns */
for ( i=0, iLen=aoColumnsInit.length ; i<iLen ; i++ )
{
_fnAddColumn( oSettings, anThs ? anThs[i] : null );
}
/* Apply the column definitions */
_fnApplyColumnDefs( oSettings, oInit.aoColumnDefs, aoColumnsInit, function (iCol, oDef) {
_fnColumnOptions( oSettings, iCol, oDef );
} );
/* HTML5 attribute detection - build an mData object automatically if the
* attributes are found
*/
if ( rowOne.length ) {
var a = function ( cell, name ) {
return cell.getAttribute( 'data-'+name ) !== null ? name : null;
};
$( rowOne[0] ).children('th, td').each( function (i, cell) {
var col = oSettings.aoColumns[i];
if ( col.mData === i ) {
var sort = a( cell, 'sort' ) || a( cell, 'order' );
var filter = a( cell, 'filter' ) || a( cell, 'search' );
if ( sort !== null || filter !== null ) {
col.mData = {
_: i+'.display',
sort: sort !== null ? i+'.@data-'+sort : undefined,
type: sort !== null ? i+'.@data-'+sort : undefined,
filter: filter !== null ? i+'.@data-'+filter : undefined
};
_fnColumnOptions( oSettings, i );
}
}
} );
}
var features = oSettings.oFeatures;
var loadedInit = function () {
/*
* Sorting
* @todo For modularisation (1.11) this needs to do into a sort start up handler
*/
// If aaSorting is not defined, then we use the first indicator in asSorting
// in case that has been altered, so the default sort reflects that option
if ( oInit.aaSorting === undefined ) {
var sorting = oSettings.aaSorting;
for ( i=0, iLen=sorting.length ; i<iLen ; i++ ) {
sorting[i][1] = oSettings.aoColumns[ i ].asSorting[0];
}
}
/* Do a first pass on the sorting classes (allows any size changes to be taken into
* account, and also will apply sorting disabled classes if disabled
*/
_fnSortingClasses( oSettings );
if ( features.bSort ) {
_fnCallbackReg( oSettings, 'aoDrawCallback', function () {
if ( oSettings.bSorted ) {
var aSort = _fnSortFlatten( oSettings );
var sortedColumns = {};
$.each( aSort, function (i, val) {
sortedColumns[ val.src ] = val.dir;
} );
_fnCallbackFire( oSettings, null, 'order', [oSettings, aSort, sortedColumns] );
_fnSortAria( oSettings );
}
} );
}
_fnCallbackReg( oSettings, 'aoDrawCallback', function () {
if ( oSettings.bSorted || _fnDataSource( oSettings ) === 'ssp' || features.bDeferRender ) {
_fnSortingClasses( oSettings );
}
}, 'sc' );
/*
* Final init
* Cache the header, body and footer as required, creating them if needed
*/
// Work around for Webkit bug 83867 - store the caption-side before removing from doc
var captions = $this.children('caption').each( function () {
this._captionSide = $(this).css('caption-side');
} );
var thead = $this.children('thead');
if ( thead.length === 0 ) {
thead = $('<thead/>').appendTo($this);
}
oSettings.nTHead = thead[0];
var tbody = $this.children('tbody');
if ( tbody.length === 0 ) {
tbody = $('<tbody/>').appendTo($this);
}
oSettings.nTBody = tbody[0];
var tfoot = $this.children('tfoot');
if ( tfoot.length === 0 && captions.length > 0 && (oSettings.oScroll.sX !== "" || oSettings.oScroll.sY !== "") ) {
// If we are a scrolling table, and no footer has been given, then we need to create
// a tfoot element for the caption element to be appended to
tfoot = $('<tfoot/>').appendTo($this);
}
if ( tfoot.length === 0 || tfoot.children().length === 0 ) {
$this.addClass( oClasses.sNoFooter );
}
else if ( tfoot.length > 0 ) {
oSettings.nTFoot = tfoot[0];
_fnDetectHeader( oSettings.aoFooter, oSettings.nTFoot );
}
/* Check if there is data passing into the constructor */
if ( oInit.aaData ) {
for ( i=0 ; i<oInit.aaData.length ; i++ ) {
_fnAddData( oSettings, oInit.aaData[ i ] );
}
}
else if ( oSettings.bDeferLoading || _fnDataSource( oSettings ) == 'dom' ) {
/* Grab the data from the page - only do this when deferred loading or no Ajax
* source since there is no point in reading the DOM data if we are then going
* to replace it with Ajax data
*/
_fnAddTr( oSettings, $(oSettings.nTBody).children('tr') );
}
/* Copy the data index array */
oSettings.aiDisplay = oSettings.aiDisplayMaster.slice();
/* Initialisation complete - table can be drawn */
oSettings.bInitialised = true;
/* Check if we need to initialise the table (it might not have been handed off to the
* language processor)
*/
if ( bInitHandedOff === false ) {
_fnInitialise( oSettings );
}
};
/* Must be done after everything which can be overridden by the state saving! */
if ( oInit.bStateSave )
{
features.bStateSave = true;
_fnCallbackReg( oSettings, 'aoDrawCallback', _fnSaveState, 'state_save' );
_fnLoadState( oSettings, oInit, loadedInit );
}
else {
loadedInit();
}
} );
_that = null;
return this;
};
/*
* It is useful to have variables which are scoped locally so only the
* DataTables functions can access them and they don't leak into global space.
* At the same time these functions are often useful over multiple files in the
* core and API, so we list, or at least document, all variables which are used
* by DataTables as private variables here. This also ensures that there is no
* clashing of variable names and that they can easily referenced for reuse.
*/
// Defined else where
// _selector_run
// _selector_opts
// _selector_first
// _selector_row_indexes
var _ext; // DataTable.ext
var _Api; // DataTable.Api
var _api_register; // DataTable.Api.register
var _api_registerPlural; // DataTable.Api.registerPlural
var _re_dic = {};
var _re_new_lines = /[\r\n]/g;
var _re_html = /<.*?>/g;
// This is not strict ISO8601 - Date.parse() is quite lax, although
// implementations differ between browsers.
var _re_date = /^\d{2,4}[\.\/\-]\d{1,2}[\.\/\-]\d{1,2}([T ]{1}\d{1,2}[:\.]\d{2}([\.:]\d{2})?)?$/;
// Escape regular expression special characters
var _re_escape_regex = new RegExp( '(\\' + [ '/', '.', '*', '+', '?', '|', '(', ')', '[', ']', '{', '}', '\\', '$', '^', '-' ].join('|\\') + ')', 'g' );
// http://en.wikipedia.org/wiki/Foreign_exchange_market
// - \u20BD - Russian ruble.
// - \u20a9 - South Korean Won
// - \u20BA - Turkish Lira
// - \u20B9 - Indian Rupee
// - R - Brazil (R$) and South Africa
// - fr - Swiss Franc
// - kr - Swedish krona, Norwegian krone and Danish krone
// - \u2009 is thin space and \u202F is narrow no-break space, both used in many
// - Ƀ - Bitcoin
// - Ξ - Ethereum
// standards as thousands separators.
var _re_formatted_numeric = /[',$£€¥%\u2009\u202F\u20BD\u20a9\u20BArfkɃΞ]/gi;
var _empty = function ( d ) {
return !d || d === true || d === '-' ? true : false;
};
var _intVal = function ( s ) {
var integer = parseInt( s, 10 );
return !isNaN(integer) && isFinite(s) ? integer : null;
};
// Convert from a formatted number with characters other than `.` as the
// decimal place, to a Javascript number
var _numToDecimal = function ( num, decimalPoint ) {
// Cache created regular expressions for speed as this function is called often
if ( ! _re_dic[ decimalPoint ] ) {
_re_dic[ decimalPoint ] = new RegExp( _fnEscapeRegex( decimalPoint ), 'g' );
}
return typeof num === 'string' && decimalPoint !== '.' ?
num.replace( /\./g, '' ).replace( _re_dic[ decimalPoint ], '.' ) :
num;
};
var _isNumber = function ( d, decimalPoint, formatted ) {
var strType = typeof d === 'string';
// If empty return immediately so there must be a number if it is a
// formatted string (this stops the string "k", or "kr", etc being detected
// as a formatted number for currency
if ( _empty( d ) ) {
return true;
}
if ( decimalPoint && strType ) {
d = _numToDecimal( d, decimalPoint );
}
if ( formatted && strType ) {
d = d.replace( _re_formatted_numeric, '' );
}
return !isNaN( parseFloat(d) ) && isFinite( d );
};
// A string without HTML in it can be considered to be HTML still
var _isHtml = function ( d ) {
return _empty( d ) || typeof d === 'string';
};
var _htmlNumeric = function ( d, decimalPoint, formatted ) {
if ( _empty( d ) ) {
return true;
}
var html = _isHtml( d );
return ! html ?
null :
_isNumber( _stripHtml( d ), decimalPoint, formatted ) ?
true :
null;
};
var _pluck = function ( a, prop, prop2 ) {
var out = [];
var i=0, ien=a.length;
// Could have the test in the loop for slightly smaller code, but speed
// is essential here
if ( prop2 !== undefined ) {
for ( ; i<ien ; i++ ) {
if ( a[i] && a[i][ prop ] ) {
out.push( a[i][ prop ][ prop2 ] );
}
}
}
else {
for ( ; i<ien ; i++ ) {
if ( a[i] ) {
out.push( a[i][ prop ] );
}
}
}
return out;
};
// Basically the same as _pluck, but rather than looping over `a` we use `order`
// as the indexes to pick from `a`
var _pluck_order = function ( a, order, prop, prop2 )
{
var out = [];
var i=0, ien=order.length;
// Could have the test in the loop for slightly smaller code, but speed
// is essential here
if ( prop2 !== undefined ) {
for ( ; i<ien ; i++ ) {
if ( a[ order[i] ][ prop ] ) {
out.push( a[ order[i] ][ prop ][ prop2 ] );
}
}
}
else {
for ( ; i<ien ; i++ ) {
out.push( a[ order[i] ][ prop ] );
}
}
return out;
};
var _range = function ( len, start )
{
var out = [];
var end;
if ( start === undefined ) {
start = 0;
end = len;
}
else {
end = start;
start = len;
}
for ( var i=start ; i<end ; i++ ) {
out.push( i );
}
return out;
};
var _removeEmpty = function ( a )
{
var out = [];
for ( var i=0, ien=a.length ; i<ien ; i++ ) {
if ( a[i] ) { // careful - will remove all falsy values!
out.push( a[i] );
}
}
return out;
};
var _stripHtml = function ( d ) {
return d.replace( _re_html, '' );
};
/**
* Determine if all values in the array are unique. This means we can short
* cut the _unique method at the cost of a single loop. A sorted array is used
* to easily check the values.
*
* @param {array} src Source array
* @return {boolean} true if all unique, false otherwise
* @ignore
*/
var _areAllUnique = function ( src ) {
if ( src.length < 2 ) {
return true;
}
var sorted = src.slice().sort();
var last = sorted[0];
for ( var i=1, ien=sorted.length ; i<ien ; i++ ) {
if ( sorted[i] === last ) {
return false;
}
last = sorted[i];
}
return true;
};
/**
* Find the unique elements in a source array.
*
* @param {array} src Source array
* @return {array} Array of unique items
* @ignore
*/
var _unique = function ( src )
{
if ( _areAllUnique( src ) ) {
return src.slice();
}
// A faster unique method is to use object keys to identify used values,
// but this doesn't work with arrays or objects, which we must also
// consider. See jsperf.com/compare-array-unique-versions/4 for more
// information.
var
out = [],
val,
i, ien=src.length,
j, k=0;
again: for ( i=0 ; i<ien ; i++ ) {
val = src[i];
for ( j=0 ; j<k ; j++ ) {
if ( out[j] === val ) {
continue again;
}
}
out.push( val );
k++;
}
return out;
};
/**
* DataTables utility methods
*
* This namespace provides helper methods that DataTables uses internally to
* create a DataTable, but which are not exclusively used only for DataTables.
* These methods can be used by extension authors to save the duplication of
* code.
*
* @namespace
*/
DataTable.util = {
/**
* Throttle the calls to a function. Arguments and context are maintained
* for the throttled function.
*
* @param {function} fn Function to be called
* @param {integer} freq Call frequency in mS
* @return {function} Wrapped function
*/
throttle: function ( fn, freq ) {
var
frequency = freq !== undefined ? freq : 200,
last,
timer;
return function () {
var
that = this,
now = +new Date(),
args = arguments;
if ( last && now < last + frequency ) {
clearTimeout( timer );
timer = setTimeout( function () {
last = undefined;
fn.apply( that, args );
}, frequency );
}
else {
last = now;
fn.apply( that, args );
}
};
},
/**
* Escape a string such that it can be used in a regular expression
*
* @param {string} val string to escape
* @returns {string} escaped string
*/
escapeRegex: function ( val ) {
return val.replace( _re_escape_regex, '\\$1' );
}
};
/**
* Create a mapping object that allows camel case parameters to be looked up
* for their Hungarian counterparts. The mapping is stored in a private
* parameter called `_hungarianMap` which can be accessed on the source object.
* @param {object} o
* @memberof DataTable#oApi
*/
function _fnHungarianMap ( o )
{
var
hungarian = 'a aa ai ao as b fn i m o s ',
match,
newKey,
map = {};
$.each( o, function (key, val) {
match = key.match(/^([^A-Z]+?)([A-Z])/);
if ( match && hungarian.indexOf(match[1]+' ') !== -1 )
{
newKey = key.replace( match[0], match[2].toLowerCase() );
map[ newKey ] = key;
if ( match[1] === 'o' )
{
_fnHungarianMap( o[key] );
}
}
} );
o._hungarianMap = map;
}
/**
* Convert from camel case parameters to Hungarian, based on a Hungarian map
* created by _fnHungarianMap.
* @param {object} src The model object which holds all parameters that can be
* mapped.
* @param {object} user The object to convert from camel case to Hungarian.
* @param {boolean} force When set to `true`, properties which already have a
* Hungarian value in the `user` object will be overwritten. Otherwise they
* won't be.
* @memberof DataTable#oApi
*/
function _fnCamelToHungarian ( src, user, force )
{
if ( ! src._hungarianMap ) {
_fnHungarianMap( src );
}
var hungarianKey;
$.each( user, function (key, val) {
hungarianKey = src._hungarianMap[ key ];
if ( hungarianKey !== undefined && (force || user[hungarianKey] === undefined) )
{
// For objects, we need to buzz down into the object to copy parameters
if ( hungarianKey.charAt(0) === 'o' )
{
// Copy the camelCase options over to the hungarian
if ( ! user[ hungarianKey ] ) {
user[ hungarianKey ] = {};
}
$.extend( true, user[hungarianKey], user[key] );
_fnCamelToHungarian( src[hungarianKey], user[hungarianKey], force );
}
else {
user[hungarianKey] = user[ key ];
}
}
} );
}
/**
* Language compatibility - when certain options are given, and others aren't, we
* need to duplicate the values over, in order to provide backwards compatibility
* with older language files.
* @param {object} oSettings dataTables settings object
* @memberof DataTable#oApi
*/
function _fnLanguageCompat( lang )
{
// Note the use of the Hungarian notation for the parameters in this method as
// this is called after the mapping of camelCase to Hungarian
var defaults = DataTable.defaults.oLanguage;
// Default mapping
var defaultDecimal = defaults.sDecimal;
if ( defaultDecimal ) {
_addNumericSort( defaultDecimal );
}
if ( lang ) {
var zeroRecords = lang.sZeroRecords;
// Backwards compatibility - if there is no sEmptyTable given, then use the same as
// sZeroRecords - assuming that is given.
if ( ! lang.sEmptyTable && zeroRecords &&
defaults.sEmptyTable === "No data available in table" )
{
_fnMap( lang, lang, 'sZeroRecords', 'sEmptyTable' );
}
// Likewise with loading records
if ( ! lang.sLoadingRecords && zeroRecords &&
defaults.sLoadingRecords === "Loading..." )
{
_fnMap( lang, lang, 'sZeroRecords', 'sLoadingRecords' );
}
// Old parameter name of the thousands separator mapped onto the new
if ( lang.sInfoThousands ) {
lang.sThousands = lang.sInfoThousands;
}
var decimal = lang.sDecimal;
if ( decimal && defaultDecimal !== decimal ) {
_addNumericSort( decimal );
}
}
}
/**
* Map one parameter onto another
* @param {object} o Object to map
* @param {*} knew The new parameter name
* @param {*} old The old parameter name
*/
var _fnCompatMap = function ( o, knew, old ) {
if ( o[ knew ] !== undefined ) {
o[ old ] = o[ knew ];
}
};
/**
* Provide backwards compatibility for the main DT options. Note that the new
* options are mapped onto the old parameters, so this is an external interface
* change only.
* @param {object} init Object to map
*/
function _fnCompatOpts ( init )
{
_fnCompatMap( init, 'ordering', 'bSort' );
_fnCompatMap( init, 'orderMulti', 'bSortMulti' );
_fnCompatMap( init, 'orderClasses', 'bSortClasses' );
_fnCompatMap( init, 'orderCellsTop', 'bSortCellsTop' );
_fnCompatMap( init, 'order', 'aaSorting' );
_fnCompatMap( init, 'orderFixed', 'aaSortingFixed' );
_fnCompatMap( init, 'paging', 'bPaginate' );
_fnCompatMap( init, 'pagingType', 'sPaginationType' );
_fnCompatMap( init, 'pageLength', 'iDisplayLength' );
_fnCompatMap( init, 'searching', 'bFilter' );
// Boolean initialisation of x-scrolling
if ( typeof init.sScrollX === 'boolean' ) {
init.sScrollX = init.sScrollX ? '100%' : '';
}
if ( typeof init.scrollX === 'boolean' ) {
init.scrollX = init.scrollX ? '100%' : '';
}
// Column search objects are in an array, so it needs to be converted
// element by element
var searchCols = init.aoSearchCols;
if ( searchCols ) {
for ( var i=0, ien=searchCols.length ; i<ien ; i++ ) {
if ( searchCols[i] ) {
_fnCamelToHungarian( DataTable.models.oSearch, searchCols[i] );
}
}
}
}
/**
* Provide backwards compatibility for column options. Note that the new options
* are mapped onto the old parameters, so this is an external interface change
* only.
* @param {object} init Object to map
*/
function _fnCompatCols ( init )
{
_fnCompatMap( init, 'orderable', 'bSortable' );
_fnCompatMap( init, 'orderData', 'aDataSort' );
_fnCompatMap( init, 'orderSequence', 'asSorting' );
_fnCompatMap( init, 'orderDataType', 'sortDataType' );
// orderData can be given as an integer
var dataSort = init.aDataSort;
if ( typeof dataSort === 'number' && ! $.isArray( dataSort ) ) {
init.aDataSort = [ dataSort ];
}
}
/**
* Browser feature detection for capabilities, quirks
* @param {object} settings dataTables settings object
* @memberof DataTable#oApi
*/
function _fnBrowserDetect( settings )
{
// We don't need to do this every time DataTables is constructed, the values
// calculated are specific to the browser and OS configuration which we
// don't expect to change between initialisations
if ( ! DataTable.__browser ) {
var browser = {};
DataTable.__browser = browser;
// Scrolling feature / quirks detection
var n = $('<div/>')
.css( {
position: 'fixed',
top: 0,
left: $(window).scrollLeft()*-1, // allow for scrolling
height: 1,
width: 1,
overflow: 'hidden'
} )
.append(
$('<div/>')
.css( {
position: 'absolute',
top: 1,
left: 1,
width: 100,
overflow: 'scroll'
} )
.append(
$('<div/>')
.css( {
width: '100%',
height: 10
} )
)
)
.appendTo( 'body' );
var outer = n.children();
var inner = outer.children();
// Numbers below, in order, are:
// inner.offsetWidth, inner.clientWidth, outer.offsetWidth, outer.clientWidth
//
// IE6 XP: 100 100 100 83
// IE7 Vista: 100 100 100 83
// IE 8+ Windows: 83 83 100 83
// Evergreen Windows: 83 83 100 83
// Evergreen Mac with scrollbars: 85 85 100 85
// Evergreen Mac without scrollbars: 100 100 100 100
// Get scrollbar width
browser.barWidth = outer[0].offsetWidth - outer[0].clientWidth;
// IE6/7 will oversize a width 100% element inside a scrolling element, to
// include the width of the scrollbar, while other browsers ensure the inner
// element is contained without forcing scrolling
browser.bScrollOversize = inner[0].offsetWidth === 100 && outer[0].clientWidth !== 100;
// In rtl text layout, some browsers (most, but not all) will place the
// scrollbar on the left, rather than the right.
browser.bScrollbarLeft = Math.round( inner.offset().left ) !== 1;
// IE8- don't provide height and width for getBoundingClientRect
browser.bBounding = n[0].getBoundingClientRect().width ? true : false;
n.remove();
}
$.extend( settings.oBrowser, DataTable.__browser );
settings.oScroll.iBarWidth = DataTable.__browser.barWidth;
}
/**
* Array.prototype reduce[Right] method, used for browsers which don't support
* JS 1.6. Done this way to reduce code size, since we iterate either way
* @param {object} settings dataTables settings object
* @memberof DataTable#oApi
*/
function _fnReduce ( that, fn, init, start, end, inc )
{
var
i = start,
value,
isSet = false;
if ( init !== undefined ) {
value = init;
isSet = true;
}
while ( i !== end ) {
if ( ! that.hasOwnProperty(i) ) {
continue;
}
value = isSet ?
fn( value, that[i], i, that ) :
that[i];
isSet = true;
i += inc;
}
return value;
}
/**
* Add a column to the list used for the table with default values
* @param {object} oSettings dataTables settings object
* @param {node} nTh The th element for this column
* @memberof DataTable#oApi
*/
function _fnAddColumn( oSettings, nTh )
{
// Add column to aoColumns array
var oDefaults = DataTable.defaults.column;
var iCol = oSettings.aoColumns.length;
var oCol = $.extend( {}, DataTable.models.oColumn, oDefaults, {
"nTh": nTh ? nTh : document.createElement('th'),
"sTitle": oDefaults.sTitle ? oDefaults.sTitle : nTh ? nTh.innerHTML : '',
"aDataSort": oDefaults.aDataSort ? oDefaults.aDataSort : [iCol],
"mData": oDefaults.mData ? oDefaults.mData : iCol,
idx: iCol
} );
oSettings.aoColumns.push( oCol );
// Add search object for column specific search. Note that the `searchCols[ iCol ]`
// passed into extend can be undefined. This allows the user to give a default
// with only some of the parameters defined, and also not give a default
var searchCols = oSettings.aoPreSearchCols;
searchCols[ iCol ] = $.extend( {}, DataTable.models.oSearch, searchCols[ iCol ] );
// Use the default column options function to initialise classes etc
_fnColumnOptions( oSettings, iCol, $(nTh).data() );
}
/**
* Apply options for a column
* @param {object} oSettings dataTables settings object
* @param {int} iCol column index to consider
* @param {object} oOptions object with sType, bVisible and bSearchable etc
* @memberof DataTable#oApi
*/
function _fnColumnOptions( oSettings, iCol, oOptions )
{
var oCol = oSettings.aoColumns[ iCol ];
var oClasses = oSettings.oClasses;
var th = $(oCol.nTh);
// Try to get width information from the DOM. We can't get it from CSS
// as we'd need to parse the CSS stylesheet. `width` option can override
if ( ! oCol.sWidthOrig ) {
// Width attribute
oCol.sWidthOrig = th.attr('width') || null;
// Style attribute
var t = (th.attr('style') || '').match(/width:\s*(\d+[pxem%]+)/);
if ( t ) {
oCol.sWidthOrig = t[1];
}
}
/* User specified column options */
if ( oOptions !== undefined && oOptions !== null )
{
// Backwards compatibility
_fnCompatCols( oOptions );
// Map camel case parameters to their Hungarian counterparts
_fnCamelToHungarian( DataTable.defaults.column, oOptions );
/* Backwards compatibility for mDataProp */
if ( oOptions.mDataProp !== undefined && !oOptions.mData )
{
oOptions.mData = oOptions.mDataProp;
}
if ( oOptions.sType )
{
oCol._sManualType = oOptions.sType;
}
// `class` is a reserved word in Javascript, so we need to provide
// the ability to use a valid name for the camel case input
if ( oOptions.className && ! oOptions.sClass )
{
oOptions.sClass = oOptions.className;
}
if ( oOptions.sClass ) {
th.addClass( oOptions.sClass );
}
$.extend( oCol, oOptions );
_fnMap( oCol, oOptions, "sWidth", "sWidthOrig" );
/* iDataSort to be applied (backwards compatibility), but aDataSort will take
* priority if defined
*/
if ( oOptions.iDataSort !== undefined )
{
oCol.aDataSort = [ oOptions.iDataSort ];
}
_fnMap( oCol, oOptions, "aDataSort" );
}
/* Cache the data get and set functions for speed */
var mDataSrc = oCol.mData;
var mData = _fnGetObjectDataFn( mDataSrc );
var mRender = oCol.mRender ? _fnGetObjectDataFn( oCol.mRender ) : null;
var attrTest = function( src ) {
return typeof src === 'string' && src.indexOf('@') !== -1;
};
oCol._bAttrSrc = $.isPlainObject( mDataSrc ) && (
attrTest(mDataSrc.sort) || attrTest(mDataSrc.type) || attrTest(mDataSrc.filter)
);
oCol._setter = null;
oCol.fnGetData = function (rowData, type, meta) {
var innerData = mData( rowData, type, undefined, meta );
return mRender && type ?
mRender( innerData, type, rowData, meta ) :
innerData;
};
oCol.fnSetData = function ( rowData, val, meta ) {
return _fnSetObjectDataFn( mDataSrc )( rowData, val, meta );
};
// Indicate if DataTables should read DOM data as an object or array
// Used in _fnGetRowElements
if ( typeof mDataSrc !== 'number' ) {
oSettings._rowReadObject = true;
}
/* Feature sorting overrides column specific when off */
if ( !oSettings.oFeatures.bSort )
{
oCol.bSortable = false;
th.addClass( oClasses.sSortableNone ); // Have to add class here as order event isn't called
}
/* Check that the class assignment is correct for sorting */
var bAsc = $.inArray('asc', oCol.asSorting) !== -1;
var bDesc = $.inArray('desc', oCol.asSorting) !== -1;
if ( !oCol.bSortable || (!bAsc && !bDesc) )
{
oCol.sSortingClass = oClasses.sSortableNone;
oCol.sSortingClassJUI = "";
}
else if ( bAsc && !bDesc )
{
oCol.sSortingClass = oClasses.sSortableAsc;
oCol.sSortingClassJUI = oClasses.sSortJUIAscAllowed;
}
else if ( !bAsc && bDesc )
{
oCol.sSortingClass = oClasses.sSortableDesc;
oCol.sSortingClassJUI = oClasses.sSortJUIDescAllowed;
}
else
{
oCol.sSortingClass = oClasses.sSortable;
oCol.sSortingClassJUI = oClasses.sSortJUI;
}
}
/**
* Adjust the table column widths for new data. Note: you would probably want to
* do a redraw after calling this function!
* @param {object} settings dataTables settings object
* @memberof DataTable#oApi
*/
function _fnAdjustColumnSizing ( settings )
{
/* Not interested in doing column width calculation if auto-width is disabled */
if ( settings.oFeatures.bAutoWidth !== false )
{
var columns = settings.aoColumns;
_fnCalculateColumnWidths( settings );
for ( var i=0 , iLen=columns.length ; i<iLen ; i++ )
{
columns[i].nTh.style.width = columns[i].sWidth;
}
}
var scroll = settings.oScroll;
if ( scroll.sY !== '' || scroll.sX !== '')
{
_fnScrollDraw( settings );
}
_fnCallbackFire( settings, null, 'column-sizing', [settings] );
}
/**
* Covert the index of a visible column to the index in the data array (take account
* of hidden columns)
* @param {object} oSettings dataTables settings object
* @param {int} iMatch Visible column index to lookup
* @returns {int} i the data index
* @memberof DataTable#oApi
*/
function _fnVisibleToColumnIndex( oSettings, iMatch )
{
var aiVis = _fnGetColumns( oSettings, 'bVisible' );
return typeof aiVis[iMatch] === 'number' ?
aiVis[iMatch] :
null;
}
/**
* Covert the index of an index in the data array and convert it to the visible
* column index (take account of hidden columns)
* @param {int} iMatch Column index to lookup
* @param {object} oSettings dataTables settings object
* @returns {int} i the data index
* @memberof DataTable#oApi
*/
function _fnColumnIndexToVisible( oSettings, iMatch )
{
var aiVis = _fnGetColumns( oSettings, 'bVisible' );
var iPos = $.inArray( iMatch, aiVis );
return iPos !== -1 ? iPos : null;
}
/**
* Get the number of visible columns
* @param {object} oSettings dataTables settings object
* @returns {int} i the number of visible columns
* @memberof DataTable#oApi
*/
function _fnVisbleColumns( oSettings )
{
var vis = 0;
// No reduce in IE8, use a loop for now
$.each( oSettings.aoColumns, function ( i, col ) {
if ( col.bVisible && $(col.nTh).css('display') !== 'none' ) {
vis++;
}
} );
return vis;
}
/**
* Get an array of column indexes that match a given property
* @param {object} oSettings dataTables settings object
* @param {string} sParam Parameter in aoColumns to look for - typically
* bVisible or bSearchable
* @returns {array} Array of indexes with matched properties
* @memberof DataTable#oApi
*/
function _fnGetColumns( oSettings, sParam )
{
var a = [];
$.map( oSettings.aoColumns, function(val, i) {
if ( val[sParam] ) {
a.push( i );
}
} );
return a;
}
/**
* Calculate the 'type' of a column
* @param {object} settings dataTables settings object
* @memberof DataTable#oApi
*/
function _fnColumnTypes ( settings )
{
var columns = settings.aoColumns;
var data = settings.aoData;
var types = DataTable.ext.type.detect;
var i, ien, j, jen, k, ken;
var col, cell, detectedType, cache;
// For each column, spin over the
for ( i=0, ien=columns.length ; i<ien ; i++ ) {
col = columns[i];
cache = [];
if ( ! col.sType && col._sManualType ) {
col.sType = col._sManualType;
}
else if ( ! col.sType ) {
for ( j=0, jen=types.length ; j<jen ; j++ ) {
for ( k=0, ken=data.length ; k<ken ; k++ ) {
// Use a cache array so we only need to get the type data
// from the formatter once (when using multiple detectors)
if ( cache[k] === undefined ) {
cache[k] = _fnGetCellData( settings, k, i, 'type' );
}
detectedType = types[j]( cache[k], settings );
// If null, then this type can't apply to this column, so
// rather than testing all cells, break out. There is an
// exception for the last type which is `html`. We need to
// scan all rows since it is possible to mix string and HTML
// types
if ( ! detectedType && j !== types.length-1 ) {
break;
}
// Only a single match is needed for html type since it is
// bottom of the pile and very similar to string
if ( detectedType === 'html' ) {
break;
}
}
// Type is valid for all data points in the column - use this
// type
if ( detectedType ) {
col.sType = detectedType;
break;
}
}
// Fall back - if no type was detected, always use string
if ( ! col.sType ) {
col.sType = 'string';
}
}
}
}
/**
* Take the column definitions and static columns arrays and calculate how
* they relate to column indexes. The callback function will then apply the
* definition found for a column to a suitable configuration object.
* @param {object} oSettings dataTables settings object
* @param {array} aoColDefs The aoColumnDefs array that is to be applied
* @param {array} aoCols The aoColumns array that defines columns individually
* @param {function} fn Callback function - takes two parameters, the calculated
* column index and the definition for that column.
* @memberof DataTable#oApi
*/
function _fnApplyColumnDefs( oSettings, aoColDefs, aoCols, fn )
{
var i, iLen, j, jLen, k, kLen, def;
var columns = oSettings.aoColumns;
// Column definitions with aTargets
if ( aoColDefs )
{
/* Loop over the definitions array - loop in reverse so first instance has priority */
for ( i=aoColDefs.length-1 ; i>=0 ; i-- )
{
def = aoColDefs[i];
/* Each definition can target multiple columns, as it is an array */
var aTargets = def.targets !== undefined ?
def.targets :
def.aTargets;
if ( ! $.isArray( aTargets ) )
{
aTargets = [ aTargets ];
}
for ( j=0, jLen=aTargets.length ; j<jLen ; j++ )
{
if ( typeof aTargets[j] === 'number' && aTargets[j] >= 0 )
{
/* Add columns that we don't yet know about */
while( columns.length <= aTargets[j] )
{
_fnAddColumn( oSettings );
}
/* Integer, basic index */
fn( aTargets[j], def );
}
else if ( typeof aTargets[j] === 'number' && aTargets[j] < 0 )
{
/* Negative integer, right to left column counting */
fn( columns.length+aTargets[j], def );
}
else if ( typeof aTargets[j] === 'string' )
{
/* Class name matching on TH element */
for ( k=0, kLen=columns.length ; k<kLen ; k++ )
{
if ( aTargets[j] == "_all" ||
$(columns[k].nTh).hasClass( aTargets[j] ) )
{
fn( k, def );
}
}
}
}
}
}
// Statically defined columns array
if ( aoCols )
{
for ( i=0, iLen=aoCols.length ; i<iLen ; i++ )
{
fn( i, aoCols[i] );
}
}
}
/**
* 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
* @param {node} [nTr] TR element to add to the table - optional. If not given,
* DataTables will create a row automatically
* @param {array} [anTds] Array of TD|TH elements for the row - must be given
* if nTr is.
* @returns {int} >=0 if successful (index of new aoData entry), -1 if failed
* @memberof DataTable#oApi
*/
function _fnAddData ( oSettings, aDataIn, nTr, anTds )
{
/* Create the object for storing information about this new row */
var iRow = oSettings.aoData.length;
var oData = $.extend( true, {}, DataTable.models.oRow, {
src: nTr ? 'dom' : 'data',
idx: iRow
} );
oData._aData = aDataIn;
oSettings.aoData.push( oData );
/* Create the cells */
var nTd, sThisType;
var columns = oSettings.aoColumns;
// Invalidate the column types as the new data needs to be revalidated
for ( var i=0, iLen=columns.length ; i<iLen ; i++ )
{
columns[i].sType = null;
}
/* Add to the display array */
oSettings.aiDisplayMaster.push( iRow );
var id = oSettings.rowIdFn( aDataIn );
if ( id !== undefined ) {
oSettings.aIds[ id ] = oData;
}
/* Create the DOM information, or register it if already present */
if ( nTr || ! oSettings.oFeatures.bDeferRender )
{
_fnCreateTr( oSettings, iRow, nTr, anTds );
}
return iRow;
}
/**
* Add one or more TR elements to the table. Generally we'd expect to
* use this for reading data from a DOM sourced table, but it could be
* used for an TR element. Note that if a TR is given, it is used (i.e.
* it is not cloned).
* @param {object} settings dataTables settings object
* @param {array|node|jQuery} trs The TR element(s) to add to the table
* @returns {array} Array of indexes for the added rows
* @memberof DataTable#oApi
*/
function _fnAddTr( settings, trs )
{
var row;
// Allow an individual node to be passed in
if ( ! (trs instanceof $) ) {
trs = $(trs);
}
return trs.map( function (i, el) {
row = _fnGetRowElements( settings, el );
return _fnAddData( settings, row.data, el, row.cells );
} );
}
/**
* 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 )
{
return $.inArray( n, oSettings.aoData[ iRow ].anCells );
}
/**
* Get the data for a given cell from the internal cache, taking into account data mapping
* @param {object} settings dataTables settings object
* @param {int} rowIdx aoData row id
* @param {int} colIdx Column index
* @param {string} type data get type ('display', 'type' 'filter' 'sort')
* @returns {*} Cell data
* @memberof DataTable#oApi
*/
function _fnGetCellData( settings, rowIdx, colIdx, type )
{
var draw = settings.iDraw;
var col = settings.aoColumns[colIdx];
var rowData = settings.aoData[rowIdx]._aData;
var defaultContent = col.sDefaultContent;
var cellData = col.fnGetData( rowData, type, {
settings: settings,
row: rowIdx,
col: colIdx
} );
if ( cellData === undefined ) {
if ( settings.iDrawError != draw && defaultContent === null ) {
_fnLog( settings, 0, "Requested unknown parameter "+
(typeof col.mData=='function' ? '{function}' : "'"+col.mData+"'")+
" for row "+rowIdx+", column "+colIdx, 4 );
settings.iDrawError = draw;
}
return defaultContent;
}
// When the data source is null and a specific data type is requested (i.e.
// not the original data), we can use default column data
if ( (cellData === rowData || cellData === null) && defaultContent !== null && type !== undefined ) {
cellData = defaultContent;
}
else if ( typeof cellData === 'function' ) {
// If the data source is a function, then we run it and use the return,
// executing in the scope of the data object (for instances)
return cellData.call( rowData );
}
if ( cellData === null && type == 'display' ) {
return '';
}
return cellData;
}
/**
* Set the value for a specific cell, into the internal data cache
* @param {object} settings dataTables settings object
* @param {int} rowIdx aoData row id
* @param {int} colIdx Column index
* @param {*} val Value to set
* @memberof DataTable#oApi
*/
function _fnSetCellData( settings, rowIdx, colIdx, val )
{
var col = settings.aoColumns[colIdx];
var rowData = settings.aoData[rowIdx]._aData;
col.fnSetData( rowData, val, {
settings: settings,
row: rowIdx,
col: colIdx
} );
}
// Private variable that is used to match action syntax in the data property object
var __reArray = /\[.*?\]$/;
var __reFn = /\(\)$/;
/**
* Split string on periods, taking into account escaped periods
* @param {string} str String to split
* @return {array} Split string
*/
function _fnSplitObjNotation( str )
{
return $.map( str.match(/(\\.|[^\.])+/g) || [''], function ( s ) {
return s.replace(/\\\./g, '.');
} );
}
/**
* 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 ( $.isPlainObject( mSource ) )
{
/* Build an object of get functions, and wrap them in a single call */
var o = {};
$.each( mSource, function (key, val) {
if ( val ) {
o[key] = _fnGetObjectDataFn( val );
}
} );
return function (data, type, row, meta) {
var t = o[type] || o._;
return t !== undefined ?
t(data, type, row, meta) :
data;
};
}
else if ( mSource === null )
{
/* Give an empty string for rendering / sorting etc */
return function (data) { // type, row and meta also passed, but not used
return data;
};
}
else if ( typeof mSource === 'function' )
{
return function (data, type, row, meta) {
return mSource( data, type, row, meta );
};
}
else if ( typeof mSource === 'string' && (mSource.indexOf('.') !== -1 ||
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 arrayNotation, funcNotation, out, innerSrc;
if ( src !== "" )
{
var a = _fnSplitObjNotation( src );
for ( var i=0, iLen=a.length ; i<iLen ; i++ )
{
// Check if we are dealing with special notation
arrayNotation = a[i].match(__reArray);
funcNotation = a[i].match(__reFn);
if ( arrayNotation )
{
// Array notation
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
if ( $.isArray( data ) ) {
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;
}
else if ( funcNotation )
{
// Function call
a[i] = a[i].replace(__reFn, '');
data = data[ a[i] ]();
continue;
}
if ( data === null || data[ a[i] ] === undefined )
{
return undefined;
}
data = data[ a[i] ];
}
}
return data;
};
return function (data, type) { // row and meta also passed, but not used
return fetchData( data, type, mSource );
};
}
else
{
/* Array or flat object mapping */
return function (data, type) { // row and meta also passed, but not used
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 ( $.isPlainObject( mSource ) )
{
/* Unlike get, only the underscore (global) option is used for for
* setting data since we don't know the type here. This is why an object
* option is not documented for `mData` (which is read/write), but it is
* for `mRender` which is read only.
*/
return _fnSetObjectDataFn( mSource._ );
}
else if ( mSource === null )
{
/* Nothing to do when the data source is null */
return function () {};
}
else if ( typeof mSource === 'function' )
{
return function (data, val, meta) {
mSource( data, 'set', val, meta );
};
}
else if ( typeof mSource === 'string' && (mSource.indexOf('.') !== -1 ||
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 = _fnSplitObjNotation( src ), b;
var aLast = a[a.length-1];
var arrayNotation, funcNotation, 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);
funcNotation = a[i].match(__reFn);
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
if ( $.isArray( val ) )
{
for ( var j=0, jLen=val.length ; j<jLen ; j++ )
{
o = {};
setData( o, val[j], innerSrc );
data[ a[i] ].push( o );
}
}
else
{
// We've been asked to save data to an array, but it
// isn't array data to be saved. Best that can be done
// is to just save the value.
data[ a[i] ] = val;
}
// 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;
}
else if ( funcNotation )
{
// Function call
a[i] = a[i].replace(__reFn, '');
data = data[ a[i] ]( val );
}
// 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] ];
}
// Last item in the input - i.e, the actual set
if ( aLast.match(__reFn ) )
{
// Function call
data = data[ aLast.replace(__reFn, '') ]( val );
}
else
{
// 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[ aLast.replace(__reArray, '') ] = val;
}
};
return function (data, val) { // meta is also passed in, but not used
return setData( data, val, mSource );
};
}
else
{
/* Array or flat object mapping */
return function (data, val) { // meta is also passed in, but not used
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 ( settings )
{
return _pluck( settings.aoData, '_aData' );
}
/**
* Nuke the table
* @param {object} oSettings dataTables settings object
* @memberof DataTable#oApi
*/
function _fnClearTable( settings )
{
settings.aoData.length = 0;
settings.aiDisplayMaster.length = 0;
settings.aiDisplay.length = 0;
settings.aIds = {};
}
/**
* 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, splice )
{
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 && splice === undefined )
{
a.splice( iTargetIndex, 1 );
}
}
/**
* Mark cached data as invalid such that a re-read of the data will occur when
* the cached data is next requested. Also update from the data source object.
*
* @param {object} settings DataTables settings object
* @param {int} rowIdx Row index to invalidate
* @param {string} [src] Source to invalidate from: undefined, 'auto', 'dom'
* or 'data'
* @param {int} [colIdx] Column index to invalidate. If undefined the whole
* row will be invalidated
* @memberof DataTable#oApi
*
* @todo For the modularisation of v1.11 this will need to become a callback, so
* the sort and filter methods can subscribe to it. That will required
* initialisation options for sorting, which is why it is not already baked in
*/
function _fnInvalidate( settings, rowIdx, src, colIdx )
{
var row = settings.aoData[ rowIdx ];
var i, ien;
var cellWrite = function ( cell, col ) {
// This is very frustrating, but in IE if you just write directly
// to innerHTML, and elements that are overwritten are GC'ed,
// even if there is a reference to them elsewhere
while ( cell.childNodes.length ) {
cell.removeChild( cell.firstChild );
}
cell.innerHTML = _fnGetCellData( settings, rowIdx, col, 'display' );
};
// Are we reading last data from DOM or the data object?
if ( src === 'dom' || ((! src || src === 'auto') && row.src === 'dom') ) {
// Read the data from the DOM
row._aData = _fnGetRowElements(
settings, row, colIdx, colIdx === undefined ? undefined : row._aData
)
.data;
}
else {
// Reading from data object, update the DOM
var cells = row.anCells;
if ( cells ) {
if ( colIdx !== undefined ) {
cellWrite( cells[colIdx], colIdx );
}
else {
for ( i=0, ien=cells.length ; i<ien ; i++ ) {
cellWrite( cells[i], i );
}
}
}
}
// For both row and cell invalidation, the cached data for sorting and
// filtering is nulled out
row._aSortData = null;
row._aFilterData = null;
// Invalidate the type for a specific column (if given) or all columns since
// the data might have changed
var cols = settings.aoColumns;
if ( colIdx !== undefined ) {
cols[ colIdx ].sType = null;
}
else {
for ( i=0, ien=cols.length ; i<ien ; i++ ) {
cols[i].sType = null;
}
// Update DataTables special `DT_*` attributes for the row
_fnRowAttributes( settings, row );
}
}
/**
* Build a data source object from an HTML row, reading the contents of the
* cells that are in the row.
*
* @param {object} settings DataTables settings object
* @param {node|object} TR element from which to read data or existing row
* object from which to re-read the data from the cells
* @param {int} [colIdx] Optional column index
* @param {array|object} [d] Data source object. If `colIdx` is given then this
* parameter should also be given and will be used to write the data into.
* Only the column in question will be written
* @returns {object} Object with two parameters: `data` the data read, in
* document order, and `cells` and array of nodes (they can be useful to the
* caller, so rather than needing a second traversal to get them, just return
* them from here).
* @memberof DataTable#oApi
*/
function _fnGetRowElements( settings, row, colIdx, d )
{
var
tds = [],
td = row.firstChild,
name, col, o, i=0, contents,
columns = settings.aoColumns,
objectRead = settings._rowReadObject;
// Allow the data object to be passed in, or construct
d = d !== undefined ?
d :
objectRead ?
{} :
[];
var attr = function ( str, td ) {
if ( typeof str === 'string' ) {
var idx = str.indexOf('@');
if ( idx !== -1 ) {
var attr = str.substring( idx+1 );
var setter = _fnSetObjectDataFn( str );
setter( d, td.getAttribute( attr ) );
}
}
};
// Read data from a cell and store into the data object
var cellProcess = function ( cell ) {
if ( colIdx === undefined || colIdx === i ) {
col = columns[i];
contents = $.trim(cell.innerHTML);
if ( col && col._bAttrSrc ) {
var setter = _fnSetObjectDataFn( col.mData._ );
setter( d, contents );
attr( col.mData.sort, cell );
attr( col.mData.type, cell );
attr( col.mData.filter, cell );
}
else {
// Depending on the `data` option for the columns the data can
// be read to either an object or an array.
if ( objectRead ) {
if ( ! col._setter ) {
// Cache the setter function
col._setter = _fnSetObjectDataFn( col.mData );
}
col._setter( d, contents );
}
else {
d[i] = contents;
}
}
}
i++;
};
if ( td ) {
// `tr` element was passed in
while ( td ) {
name = td.nodeName.toUpperCase();
if ( name == "TD" || name == "TH" ) {
cellProcess( td );
tds.push( td );
}
td = td.nextSibling;
}
}
else {
// Existing row object passed in
tds = row.anCells;
for ( var j=0, jen=tds.length ; j<jen ; j++ ) {
cellProcess( tds[j] );
}
}
// Read the ID from the DOM if present
var rowNode = row.firstChild ? row : row.nTr;
if ( rowNode ) {
var id = rowNode.getAttribute( 'id' );
if ( id ) {
_fnSetObjectDataFn( settings.rowId )( d, id );
}
}
return {
data: d,
cells: tds
};
}
/**
* 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
* @param {node} [nTrIn] TR element to add to the table - optional. If not given,
* DataTables will create a row automatically
* @param {array} [anTds] Array of TD|TH elements for the row - must be given
* if nTr is.
* @memberof DataTable#oApi
*/
function _fnCreateTr ( oSettings, iRow, nTrIn, anTds )
{
var
row = oSettings.aoData[iRow],
rowData = row._aData,
cells = [],
nTr, nTd, oCol,
i, iLen;
if ( row.nTr === null )
{
nTr = nTrIn || document.createElement('tr');
row.nTr = nTr;
row.anCells = cells;
/* Use a private property on the node to allow reserve mapping from the node
* to the aoData array for fast look up
*/
nTr._DT_RowIndex = iRow;
/* Special parameters can be given by the data source to be used on the row */
_fnRowAttributes( oSettings, row );
/* Process each column */
for ( i=0, iLen=oSettings.aoColumns.length ; i<iLen ; i++ )
{
oCol = oSettings.aoColumns[i];
nTd = nTrIn ? anTds[i] : document.createElement( oCol.sCellType );
nTd._DT_CellIndex = {
row: iRow,
column: i
};
cells.push( nTd );
// Need to create the HTML if new, or if a rendering function is defined
if ( (!nTrIn || oCol.mRender || oCol.mData !== i) &&
(!$.isPlainObject(oCol.mData) || oCol.mData._ !== i+'.display')
) {
nTd.innerHTML = _fnGetCellData( oSettings, iRow, i, 'display' );
}
/* Add user defined class */
if ( oCol.sClass )
{
nTd.className += ' '+oCol.sClass;
}
// Visibility - add or remove as required
if ( oCol.bVisible && ! nTrIn )
{
nTr.appendChild( nTd );
}
else if ( ! oCol.bVisible && nTrIn )
{
nTd.parentNode.removeChild( nTd );
}
if ( oCol.fnCreatedCell )
{
oCol.fnCreatedCell.call( oSettings.oInstance,
nTd, _fnGetCellData( oSettings, iRow, i ), rowData, iRow, i
);
}
}
_fnCallbackFire( oSettings, 'aoRowCreatedCallback', null, [nTr, rowData, iRow, cells] );
}
// Remove once webkit bug 131819 and Chromium bug 365619 have been resolved
// and deployed
row.nTr.setAttribute( 'role', 'row' );
}
/**
* Add attributes to a row based on the special `DT_*` parameters in a data
* source object.
* @param {object} settings DataTables settings object
* @param {object} DataTables row object for the row to be modified
* @memberof DataTable#oApi
*/
function _fnRowAttributes( settings, row )
{
var tr = row.nTr;
var data = row._aData;
if ( tr ) {
var id = settings.rowIdFn( data );
if ( id ) {
tr.id = id;
}
if ( data.DT_RowClass ) {
// Remove any classes added by DT_RowClass before
var a = data.DT_RowClass.split(' ');
row.__rowc = row.__rowc ?
_unique( row.__rowc.concat( a ) ) :
a;
$(tr)
.removeClass( row.__rowc.join(' ') )
.addClass( data.DT_RowClass );
}
if ( data.DT_RowAttr ) {
$(tr).attr( data.DT_RowAttr );
}
if ( data.DT_RowData ) {
$(tr).data( data.DT_RowData );
}
}
}
/**
* Create the HTML header for the table
* @param {object} oSettings dataTables settings object
* @memberof DataTable#oApi
*/
function _fnBuildHead( oSettings )
{
var i, ien, cell, row, column;
var thead = oSettings.nTHead;
var tfoot = oSettings.nTFoot;
var createHeader = $('th, td', thead).length === 0;
var classes = oSettings.oClasses;
var columns = oSettings.aoColumns;
if ( createHeader ) {
row = $('<tr/>').appendTo( thead );
}
for ( i=0, ien=columns.length ; i<ien ; i++ ) {
column = columns[i];
cell = $( column.nTh ).addClass( column.sClass );
if ( createHeader ) {
cell.appendTo( row );
}
// 1.11 move into sorting
if ( oSettings.oFeatures.bSort ) {
cell.addClass( column.sSortingClass );
if ( column.bSortable !== false ) {
cell
.attr( 'tabindex', oSettings.iTabIndex )
.attr( 'aria-controls', oSettings.sTableId );
_fnSortAttachListener( oSettings, column.nTh, i );
}
}
if ( column.sTitle != cell[0].innerHTML ) {
cell.html( column.sTitle );
}
_fnRenderer( oSettings, 'header' )(
oSettings, cell, column, classes
);
}
if ( createHeader ) {
_fnDetectHeader( oSettings.aoHeader, thead );
}
/* ARIA role for the rows */
$(thead).find('>tr').attr('role', 'row');
/* Deal with the footer - add classes if required */
$(thead).find('>tr>th, >tr>td').addClass( classes.sHeaderTH );
$(tfoot).find('>tr>th, >tr>td').addClass( classes.sFooterTH );
// Cache the footer cells. Note that we only take the cells from the first
// row in the footer. If there is more than one row the user wants to
// interact with, they need to use the table().foot() method. Note also this
// allows cells to be used for multiple columns using colspan
if ( tfoot !== null ) {
var cells = oSettings.aoFooter[0];
for ( i=0, ien=cells.length ; i<ien ; i++ ) {
column = columns[i];
column.nTf = cells[i].cell;
if ( column.sClass ) {
$(column.nTf).addClass( column.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 ( ! aoSource )
{
return;
}
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)
.attr('rowspan', iRowspan)
.attr('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 asStripeClasses = oSettings.asStripeClasses;
var iStripes = asStripeClasses.length;
var iOpenRows = oSettings.aoOpenRows.length;
var oLang = oSettings.oLanguage;
var iInitDisplayStart = oSettings.iInitDisplayStart;
var bServerSide = _fnDataSource( oSettings ) == 'ssp';
var aiDisplay = oSettings.aiDisplay;
oSettings.bDrawing = true;
/* Check and see if we have an initial draw position from state saving */
if ( iInitDisplayStart !== undefined && iInitDisplayStart !== -1 )
{
oSettings._iDisplayStart = bServerSide ?
iInitDisplayStart :
iInitDisplayStart >= oSettings.fnRecordsDisplay() ?
0 :
iInitDisplayStart;
oSettings.iInitDisplayStart = -1;
}
var iDisplayStart = oSettings._iDisplayStart;
var iDisplayEnd = oSettings.fnDisplayEnd();
/* Server-side processing draw intercept */
if ( oSettings.bDeferLoading )
{
oSettings.bDeferLoading = false;
oSettings.iDraw++;
_fnProcessingDisplay( oSettings, false );
}
else if ( !bServerSide )
{
oSettings.iDraw++;
}
else if ( !oSettings.bDestroying && !_fnAjaxUpdate( oSettings ) )
{
return;
}
if ( aiDisplay.length !== 0 )
{
var iStart = bServerSide ? 0 : iDisplayStart;
var iEnd = bServerSide ? oSettings.aoData.length : iDisplayEnd;
for ( var j=iStart ; j<iEnd ; j++ )
{
var iDataIndex = aiDisplay[j];
var aoData = oSettings.aoData[ iDataIndex ];
if ( aoData.nTr === null )
{
_fnCreateTr( oSettings, iDataIndex );
}
var nRow = aoData.nTr;
/* Remove the old striping classes and then add the new one */
if ( iStripes !== 0 )
{
var sStripe = 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
// iRowCount and j are not currently documented. Are they at all
// useful?
_fnCallbackFire( oSettings, 'aoRowCallback', null,
[nRow, aoData._aData, iRowCount, j, iDataIndex] );
anRows.push( nRow );
iRowCount++;
}
}
else
{
/* Table is empty - create a row with an empty message in it */
var sZero = oLang.sZeroRecords;
if ( oSettings.iDraw == 1 && _fnDataSource( oSettings ) == 'ajax' )
{
sZero = oLang.sLoadingRecords;
}
else if ( oLang.sEmptyTable && oSettings.fnRecordsTotal() === 0 )
{
sZero = oLang.sEmptyTable;
}
anRows[ 0 ] = $( '<tr/>', { 'class': iStripes ? asStripeClasses[0] : '' } )
.append( $('<td />', {
'valign': 'top',
'colSpan': _fnVisbleColumns( oSettings ),
'class': oSettings.oClasses.sRowEmpty
} ).html( sZero ) )[0];
}
/* Header and footer callbacks */
_fnCallbackFire( oSettings, 'aoHeaderCallback', 'header', [ $(oSettings.nTHead).children('tr')[0],
_fnGetDataMaster( oSettings ), iDisplayStart, iDisplayEnd, aiDisplay ] );
_fnCallbackFire( oSettings, 'aoFooterCallback', 'footer', [ $(oSettings.nTFoot).children('tr')[0],
_fnGetDataMaster( oSettings ), iDisplayStart, iDisplayEnd, aiDisplay ] );
var body = $(oSettings.nTBody);
body.children().detach();
body.append( $(anRows) );
/* 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;
}
/**
* Redraw the table - taking account of the various features which are enabled
* @param {object} oSettings dataTables settings object
* @param {boolean} [holdPosition] Keep the current paging position. By default
* the paging is reset to the first page
* @memberof DataTable#oApi
*/
function _fnReDraw( settings, holdPosition )
{
var
features = settings.oFeatures,
sort = features.bSort,
filter = features.bFilter;
if ( sort ) {
_fnSort( settings );
}
if ( filter ) {
_fnFilterComplete( settings, settings.oPreviousSearch );
}
else {
// No filtering, so we want to just use the display master
settings.aiDisplay = settings.aiDisplayMaster.slice();
}
if ( holdPosition !== true ) {
settings._iDisplayStart = 0;
}
// Let any modules know about the draw hold position state (used by
// scrolling internally)
settings._drawHold = holdPosition;
_fnDraw( settings );
settings._drawHold = false;
}
/**
* Add the options to the page HTML for the table
* @param {object} oSettings dataTables settings object
* @memberof DataTable#oApi
*/
function _fnAddOptionsHtml ( oSettings )
{
var classes = oSettings.oClasses;
var table = $(oSettings.nTable);
var holding = $('<div/>').insertBefore( table ); // Holding element for speed
var features = oSettings.oFeatures;
// All DataTables are wrapped in a div
var insert = $('<div/>', {
id: oSettings.sTableId+'_wrapper',
'class': classes.sWrapper + (oSettings.nTFoot ? '' : ' '+classes.sNoFooter)
} );
oSettings.nHolding = holding[0];
oSettings.nTableWrapper = insert[0];
oSettings.nTableReinsertBefore = oSettings.nTable.nextSibling;
/* Loop over the user set positioning and place the elements as needed */
var aDom = oSettings.sDom.split('');
var featureNode, cOption, nNewNode, cNext, sAttr, j;
for ( var i=0 ; i<aDom.length ; i++ )
{
featureNode = null;
cOption = aDom[i];
if ( cOption == '<' )
{
/* New container div */
nNewNode = $('<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 @todo depreciated */
if ( sAttr == "H" )
{
sAttr = classes.sJUIHeader;
}
else if ( sAttr == "F" )
{
sAttr = classes.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 */
}
insert.append( nNewNode );
insert = $(nNewNode);
}
else if ( cOption == '>' )
{
/* End container div */
insert = insert.parent();
}
// @todo Move options into their own plugins?
else if ( cOption == 'l' && features.bPaginate && features.bLengthChange )
{
/* Length */
featureNode = _fnFeatureHtmlLength( oSettings );
}
else if ( cOption == 'f' && features.bFilter )
{
/* Filter */
featureNode = _fnFeatureHtmlFilter( oSettings );
}
else if ( cOption == 'r' && features.bProcessing )
{
/* pRocessing */
featureNode = _fnFeatureHtmlProcessing( oSettings );
}
else if ( cOption == 't' )
{
/* Table */
featureNode = _fnFeatureHtmlTable( oSettings );
}
else if ( cOption == 'i' && features.bInfo )
{
/* Info */
featureNode = _fnFeatureHtmlInfo( oSettings );
}
else if ( cOption == 'p' && features.bPaginate )
{
/* Pagination */
featureNode = _fnFeatureHtmlPaginate( oSettings );
}
else if ( DataTable.ext.feature.length !== 0 )
{
/* Plug-in features */
var aoFeatures = DataTable.ext.feature;
for ( var k=0, kLen=aoFeatures.length ; k<kLen ; k++ )
{
if ( cOption == aoFeatures[k].cFeature )
{
featureNode = aoFeatures[k].fnInit( oSettings );
break;
}
}
}
/* Add to the 2D features array */
if ( featureNode )
{
var aanFeatures = oSettings.aanFeatures;
if ( ! aanFeatures[cOption] )
{
aanFeatures[cOption] = [];
}
aanFeatures[cOption].push( featureNode );
insert.append( featureNode );
}
}
/* Built our DOM structure - replace the holding div with what we want */
holding.replaceWith( insert );
oSettings.nHolding = null;
}
/**
* 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;
}
/**
* Create an Ajax call based on the table's settings, taking into account that
* parameters can have multiple forms, and backwards compatibility.
*
* @param {object} oSettings dataTables settings object
* @param {array} data Data to send to the server, required by
* DataTables - may be augmented by developer callbacks
* @param {function} fn Callback function to run when data is obtained
*/
function _fnBuildAjax( oSettings, data, fn )
{
// Compatibility with 1.9-, allow fnServerData and event to manipulate
_fnCallbackFire( oSettings, 'aoServerParams', 'serverParams', [data] );
// Convert to object based for 1.10+ if using the old array scheme which can
// come from server-side processing or serverParams
if ( data && $.isArray(data) ) {
var tmp = {};
var rbracket = /(.*?)\[\]$/;
$.each( data, function (key, val) {
var match = val.name.match(rbracket);
if ( match ) {
// Support for arrays
var name = match[0];
if ( ! tmp[ name ] ) {
tmp[ name ] = [];
}
tmp[ name ].push( val.value );
}
else {
tmp[val.name] = val.value;
}
} );
data = tmp;
}
var ajaxData;
var ajax = oSettings.ajax;
var instance = oSettings.oInstance;
var callback = function ( json ) {
_fnCallbackFire( oSettings, null, 'xhr', [oSettings, json, oSettings.jqXHR] );
fn( json );
};
if ( $.isPlainObject( ajax ) && ajax.data )
{
ajaxData = ajax.data;
var newData = typeof ajaxData === 'function' ?
ajaxData( data, oSettings ) : // fn can manipulate data or return
ajaxData; // an object object or array to merge
// If the function returned something, use that alone
data = typeof ajaxData === 'function' && newData ?
newData :
$.extend( true, data, newData );
// Remove the data property as we've resolved it already and don't want
// jQuery to do it again (it is restored at the end of the function)
delete ajax.data;
}
var baseAjax = {
"data": data,
"success": function (json) {
var error = json.error || json.sError;
if ( error ) {
_fnLog( oSettings, 0, error );
}
oSettings.json = json;
callback( json );
},
"dataType": "json",
"cache": false,
"type": oSettings.sServerMethod,
"error": function (xhr, error, thrown) {
var ret = _fnCallbackFire( oSettings, null, 'xhr', [oSettings, null, oSettings.jqXHR] );
if ( $.inArray( true, ret ) === -1 ) {
if ( error == "parsererror" ) {
_fnLog( oSettings, 0, 'Invalid JSON response', 1 );
}
else if ( xhr.readyState === 4 ) {
_fnLog( oSettings, 0, 'Ajax error', 7 );
}
}
_fnProcessingDisplay( oSettings, false );
}
};
// Store the data submitted for the API
oSettings.oAjaxData = data;
// Allow plug-ins and external processes to modify the data
_fnCallbackFire( oSettings, null, 'preXhr', [oSettings, data] );
if ( oSettings.fnServerData )
{
// DataTables 1.9- compatibility
oSettings.fnServerData.call( instance,
oSettings.sAjaxSource,
$.map( data, function (val, key) { // Need to convert back to 1.9 trad format
return { name: key, value: val };
} ),
callback,
oSettings
);
}
else if ( oSettings.sAjaxSource || typeof ajax === 'string' )
{
// DataTables 1.9- compatibility
oSettings.jqXHR = $.ajax( $.extend( baseAjax, {
url: ajax || oSettings.sAjaxSource
} ) );
}
else if ( typeof ajax === 'function' )
{
// Is a function - let the caller define what needs to be done
oSettings.jqXHR = ajax.call( instance, data, callback, oSettings );
}
else
{
// Object to extend the base settings
oSettings.jqXHR = $.ajax( $.extend( baseAjax, ajax ) );
// Restore for next time around
ajax.data = ajaxData;
}
}
/**
* Update the table using an Ajax call
* @param {object} settings dataTables settings object
* @returns {boolean} Block the table drawing or not
* @memberof DataTable#oApi
*/
function _fnAjaxUpdate( settings )
{
if ( settings.bAjaxDataGet ) {
settings.iDraw++;
_fnProcessingDisplay( settings, true );
_fnBuildAjax(
settings,
_fnAjaxParameters( settings ),
function(json) {
_fnAjaxUpdateDraw( settings, json );
}
);
return false;
}
return true;
}
/**
* Build up the parameters in an object needed for a server-side processing
* request. Note that this is basically done twice, is different ways - a modern
* method which is used by default in DataTables 1.10 which uses objects and
* arrays, or the 1.9- method with is name / value pairs. 1.9 method is used if
* the sAjaxSource option is used in the initialisation, or the legacyAjax
* option is set.
* @param {object} oSettings dataTables settings object
* @returns {bool} block the table drawing or not
* @memberof DataTable#oApi
*/
function _fnAjaxParameters( settings )
{
var
columns = settings.aoColumns,
columnCount = columns.length,
features = settings.oFeatures,
preSearch = settings.oPreviousSearch,
preColSearch = settings.aoPreSearchCols,
i, data = [], dataProp, column, columnSearch,
sort = _fnSortFlatten( settings ),
displayStart = settings._iDisplayStart,
displayLength = features.bPaginate !== false ?
settings._iDisplayLength :
-1;
var param = function ( name, value ) {
data.push( { 'name': name, 'value': value } );
};
// DataTables 1.9- compatible method
param( 'sEcho', settings.iDraw );
param( 'iColumns', columnCount );
param( 'sColumns', _pluck( columns, 'sName' ).join(',') );
param( 'iDisplayStart', displayStart );
param( 'iDisplayLength', displayLength );
// DataTables 1.10+ method
var d = {
draw: settings.iDraw,
columns: [],
order: [],
start: displayStart,
length: displayLength,
search: {
value: preSearch.sSearch,
regex: preSearch.bRegex
}
};
for ( i=0 ; i<columnCount ; i++ ) {
column = columns[i];
columnSearch = preColSearch[i];
dataProp = typeof column.mData=="function" ? 'function' : column.mData ;
d.columns.push( {
data: dataProp,
name: column.sName,
searchable: column.bSearchable,
orderable: column.bSortable,
search: {
value: columnSearch.sSearch,
regex: columnSearch.bRegex
}
} );
param( "mDataProp_"+i, dataProp );
if ( features.bFilter ) {
param( 'sSearch_'+i, columnSearch.sSearch );
param( 'bRegex_'+i, columnSearch.bRegex );
param( 'bSearchable_'+i, column.bSearchable );
}
if ( features.bSort ) {
param( 'bSortable_'+i, column.bSortable );
}
}
if ( features.bFilter ) {
param( 'sSearch', preSearch.sSearch );
param( 'bRegex', preSearch.bRegex );
}
if ( features.bSort ) {
$.each( sort, function ( i, val ) {
d.order.push( { column: val.col, dir: val.dir } );
param( 'iSortCol_'+i, val.col );
param( 'sSortDir_'+i, val.dir );
} );
param( 'iSortingCols', sort.length );
}
// If the legacy.ajax parameter is null, then we automatically decide which
// form to use, based on sAjaxSource
var legacy = DataTable.ext.legacy.ajax;
if ( legacy === null ) {
return settings.sAjaxSource ? data : d;
}
// Otherwise, if legacy has been specified then we use that to decide on the
// form
return legacy ? data : d;
}
/**
* Data the data from the server (nuking the old) and redraw the table
* @param {object} oSettings dataTables settings object
* @param {object} json json data return from the server.
* @param {string} json.sEcho Tracking flag for DataTables to match requests
* @param {int} json.iTotalRecords Number of records in the data set, not accounting for filtering
* @param {int} json.iTotalDisplayRecords Number of records in the data set, accounting for filtering
* @param {array} json.aaData The data to display on this page
* @param {string} [json.sColumns] Column ordering (sName, comma separated)
* @memberof DataTable#oApi
*/
function _fnAjaxUpdateDraw ( settings, json )
{
// v1.10 uses camelCase variables, while 1.9 uses Hungarian notation.
// Support both
var compat = function ( old, modern ) {
return json[old] !== undefined ? json[old] : json[modern];
};
var data = _fnAjaxDataSrc( settings, json );
var draw = compat( 'sEcho', 'draw' );
var recordsTotal = compat( 'iTotalRecords', 'recordsTotal' );
var recordsFiltered = compat( 'iTotalDisplayRecords', 'recordsFiltered' );
if ( draw ) {
// Protect against out of sequence returns
if ( draw*1 < settings.iDraw ) {
return;
}
settings.iDraw = draw * 1;
}
_fnClearTable( settings );
settings._iRecordsTotal = parseInt(recordsTotal, 10);
settings._iRecordsDisplay = parseInt(recordsFiltered, 10);
for ( var i=0, ien=data.length ; i<ien ; i++ ) {
_fnAddData( settings, data[i] );
}
settings.aiDisplay = settings.aiDisplayMaster.slice();
settings.bAjaxDataGet = false;
_fnDraw( settings );
if ( ! settings._bInitComplete ) {
_fnInitComplete( settings, json );
}
settings.bAjaxDataGet = true;
_fnProcessingDisplay( settings, false );
}
/**
* Get the data from the JSON data source to use for drawing a table. Using
* `_fnGetObjectDataFn` allows the data to be sourced from a property of the
* source object, or from a processing function.
* @param {object} oSettings dataTables settings object
* @param {object} json Data source object / array from the server
* @return {array} Array of data to use
*/
function _fnAjaxDataSrc ( oSettings, json )
{
var dataSrc = $.isPlainObject( oSettings.ajax ) && oSettings.ajax.dataSrc !== undefined ?
oSettings.ajax.dataSrc :
oSettings.sAjaxDataProp; // Compatibility with 1.9-.
// Compatibility with 1.9-. In order to read from aaData, check if the
// default has been changed, if not, check for aaData
if ( dataSrc === 'data' ) {
return json.aaData || json[dataSrc];
}
return dataSrc !== "" ?
_fnGetObjectDataFn( dataSrc )( json ) :
json;
}
/**
* Generate the node required for filtering text
* @returns {node} Filter control element
* @param {object} oSettings dataTables settings object
* @memberof DataTable#oApi
*/
function _fnFeatureHtmlFilter ( settings )
{
var classes = settings.oClasses;
var tableId = settings.sTableId;
var language = settings.oLanguage;
var previousSearch = settings.oPreviousSearch;
var features = settings.aanFeatures;
var input = '<input type="search" class="'+classes.sFilterInput+'"/>';
var str = language.sSearch;
str = str.match(/_INPUT_/) ?
str.replace('_INPUT_', input) :
str+input;
var filter = $('<div/>', {
'id': ! features.f ? tableId+'_filter' : null,
'class': classes.sFilter
} )
.append( $('<label/>' ).append( str ) );
var searchFn = function() {
/* Update all other filter input elements for the new display */
var n = features.f;
var val = !this.value ? "" : this.value; // mental IE8 fix :-(
/* Now do the filter */
if ( val != previousSearch.sSearch ) {
_fnFilterComplete( settings, {
"sSearch": val,
"bRegex": previousSearch.bRegex,
"bSmart": previousSearch.bSmart ,
"bCaseInsensitive": previousSearch.bCaseInsensitive
} );
// Need to redraw, without resorting
settings._iDisplayStart = 0;
_fnDraw( settings );
}
};
var searchDelay = settings.searchDelay !== null ?
settings.searchDelay :
_fnDataSource( settings ) === 'ssp' ?
400 :
0;
var jqFilter = $('input', filter)
.val( previousSearch.sSearch )
.attr( 'placeholder', language.sSearchPlaceholder )
.on(
'keyup.DT search.DT input.DT paste.DT cut.DT',
searchDelay ?
_fnThrottle( searchFn, searchDelay ) :
searchFn
)
.on( 'keypress.DT', function(e) {
/* Prevent form submission */
if ( e.keyCode == 13 ) {
return false;
}
} )
.attr('aria-controls', tableId);
// Update the input elements whenever the table is filtered
$(settings.nTable).on( 'search.dt.DT', function ( ev, s ) {
if ( settings === s ) {
// IE9 throws an 'unknown error' if document.activeElement is used
// inside an iframe or frame...
try {
if ( jqFilter[0] !== document.activeElement ) {
jqFilter.val( previousSearch.sSearch );
}
}
catch ( e ) {}
}
} );
return filter[0];
}
/**
* Filter the table using both the global filter and column based filtering
* @param {object} oSettings dataTables settings object
* @param {object} oSearch search information
* @param {int} [iForce] force a research of the master array (1) or not (undefined or 0)
* @memberof DataTable#oApi
*/
function _fnFilterComplete ( oSettings, oInput, iForce )
{
var oPrevSearch = oSettings.oPreviousSearch;
var aoPrevSearch = oSettings.aoPreSearchCols;
var fnSaveFilter = function ( oFilter ) {
/* Save the filtering values */
oPrevSearch.sSearch = oFilter.sSearch;
oPrevSearch.bRegex = oFilter.bRegex;
oPrevSearch.bSmart = oFilter.bSmart;
oPrevSearch.bCaseInsensitive = oFilter.bCaseInsensitive;
};
var fnRegex = function ( o ) {
// Backwards compatibility with the bEscapeRegex option
return o.bEscapeRegex !== undefined ? !o.bEscapeRegex : o.bRegex;
};
// Resolve any column types that are unknown due to addition or invalidation
// @todo As per sort - can this be moved into an event handler?
_fnColumnTypes( oSettings );
/* In server-side processing all filtering is done by the server, so no point hanging around here */
if ( _fnDataSource( oSettings ) != 'ssp' )
{
/* Global filter */
_fnFilter( oSettings, oInput.sSearch, iForce, fnRegex(oInput), oInput.bSmart, oInput.bCaseInsensitive );
fnSaveFilter( oInput );
/* Now do the individual column filter */
for ( var i=0 ; i<aoPrevSearch.length ; i++ )
{
_fnFilterColumn( oSettings, aoPrevSearch[i].sSearch, i, fnRegex(aoPrevSearch[i]),
aoPrevSearch[i].bSmart, aoPrevSearch[i].bCaseInsensitive );
}
/* Custom filtering */
_fnFilterCustom( oSettings );
}
else
{
fnSaveFilter( oInput );
}
/* Tell the draw function we have been filtering */
oSettings.bFiltered = true;
_fnCallbackFire( oSettings, null, 'search', [oSettings] );
}
/**
* Apply custom filtering functions
* @param {object} oSettings dataTables settings object
* @memberof DataTable#oApi
*/
function _fnFilterCustom( settings )
{
var filters = DataTable.ext.search;
var displayRows = settings.aiDisplay;
var row, rowIdx;
for ( var i=0, ien=filters.length ; i<ien ; i++ ) {
var rows = [];
// Loop over each row and see if it should be included
for ( var j=0, jen=displayRows.length ; j<jen ; j++ ) {
rowIdx = displayRows[ j ];
row = settings.aoData[ rowIdx ];
if ( filters[i]( settings, row._aFilterData, rowIdx, row._aData, j ) ) {
rows.push( rowIdx );
}
}
// So the array reference doesn't break set the results into the
// existing array
displayRows.length = 0;
$.merge( displayRows, rows );
}
}
/**
* Filter the table on a per-column basis
* @param {object} oSettings dataTables settings object
* @param {string} sInput string to filter on
* @param {int} iColumn column to filter
* @param {bool} bRegex treat search string as a regular expression or not
* @param {bool} bSmart use smart filtering or not
* @param {bool} bCaseInsensitive Do case insenstive matching or not
* @memberof DataTable#oApi
*/
function _fnFilterColumn ( settings, searchStr, colIdx, regex, smart, caseInsensitive )
{
if ( searchStr === '' ) {
return;
}
var data;
var out = [];
var display = settings.aiDisplay;
var rpSearch = _fnFilterCreateSearch( searchStr, regex, smart, caseInsensitive );
for ( var i=0 ; i<display.length ; i++ ) {
data = settings.aoData[ display[i] ]._aFilterData[ colIdx ];
if ( rpSearch.test( data ) ) {
out.push( display[i] );
}
}
settings.aiDisplay = out;
}
/**
* Filter the data table based on user input and draw the table
* @param {object} settings dataTables settings object
* @param {string} input string to filter on
* @param {int} force optional - force a research of the master array (1) or not (undefined or 0)
* @param {bool} regex treat as a regular expression or not
* @param {bool} smart perform smart filtering or not
* @param {bool} caseInsensitive Do case insenstive matching or not
* @memberof DataTable#oApi
*/
function _fnFilter( settings, input, force, regex, smart, caseInsensitive )
{
var rpSearch = _fnFilterCreateSearch( input, regex, smart, caseInsensitive );
var prevSearch = settings.oPreviousSearch.sSearch;
var displayMaster = settings.aiDisplayMaster;
var display, invalidated, i;
var filtered = [];
// Need to take account of custom filtering functions - always filter
if ( DataTable.ext.search.length !== 0 ) {
force = true;
}
// Check if any of the rows were invalidated
invalidated = _fnFilterData( settings );
// If the input is blank - we just want the full data set
if ( input.length <= 0 ) {
settings.aiDisplay = displayMaster.slice();
}
else {
// New search - start from the master array
if ( invalidated ||
force ||
prevSearch.length > input.length ||
input.indexOf(prevSearch) !== 0 ||
settings.bSorted // On resort, the display master needs to be
// re-filtered since indexes will have changed
) {
settings.aiDisplay = displayMaster.slice();
}
// Search the display array
display = settings.aiDisplay;
for ( i=0 ; i<display.length ; i++ ) {
if ( rpSearch.test( settings.aoData[ display[i] ]._sFilterRow ) ) {
filtered.push( display[i] );
}
}
settings.aiDisplay = filtered;
}
}
/**
* Build a regular expression object suitable for searching a table
* @param {string} sSearch string to search for
* @param {bool} bRegex treat as a regular expression or not
* @param {bool} bSmart perform smart filtering or not
* @param {bool} bCaseInsensitive Do case insensitive matching or not
* @returns {RegExp} constructed object
* @memberof DataTable#oApi
*/
function _fnFilterCreateSearch( search, regex, smart, caseInsensitive )
{
search = regex ?
search :
_fnEscapeRegex( search );
if ( smart ) {
/* For smart filtering we want to allow the search to work regardless of
* word order. We also want double quoted text to be preserved, so word
* order is important - a la google. So this is what we want to
* generate:
*
* ^(?=.*?\bone\b)(?=.*?\btwo three\b)(?=.*?\bfour\b).*$
*/
var a = $.map( search.match( /"[^"]+"|[^ ]+/g ) || [''], function ( word ) {
if ( word.charAt(0) === '"' ) {
var m = word.match( /^"(.*)"$/ );
word = m ? m[1] : word;
}
return word.replace('"', '');
} );
search = '^(?=.*?'+a.join( ')(?=.*?' )+').*$';
}
return new RegExp( search, caseInsensitive ? 'i' : '' );
}
/**
* Escape a string such that it can be used in a regular expression
* @param {string} sVal string to escape
* @returns {string} escaped string
* @memberof DataTable#oApi
*/
var _fnEscapeRegex = DataTable.util.escapeRegex;
var __filter_div = $('<div>')[0];
var __filter_div_textContent = __filter_div.textContent !== undefined;
// Update the filtering data for each row if needed (by invalidation or first run)
function _fnFilterData ( settings )
{
var columns = settings.aoColumns;
var column;
var i, j, ien, jen, filterData, cellData, row;
var fomatters = DataTable.ext.type.search;
var wasInvalidated = false;
for ( i=0, ien=settings.aoData.length ; i<ien ; i++ ) {
row = settings.aoData[i];
if ( ! row._aFilterData ) {
filterData = [];
for ( j=0, jen=columns.length ; j<jen ; j++ ) {
column = columns[j];
if ( column.bSearchable ) {
cellData = _fnGetCellData( settings, i, j, 'filter' );
if ( fomatters[ column.sType ] ) {
cellData = fomatters[ column.sType ]( cellData );
}
// Search in DataTables 1.10 is string based. In 1.11 this
// should be altered to also allow strict type checking.
if ( cellData === null ) {
cellData = '';
}
if ( typeof cellData !== 'string' && cellData.toString ) {
cellData = cellData.toString();
}
}
else {
cellData = '';
}
// If it looks like there is an HTML entity in the string,
// attempt to decode it so sorting works as expected. Note that
// we could use a single line of jQuery to do this, but the DOM
// method used here is much faster http://jsperf.com/html-decode
if ( cellData.indexOf && cellData.indexOf('&') !== -1 ) {
__filter_div.innerHTML = cellData;
cellData = __filter_div_textContent ?
__filter_div.textContent :
__filter_div.innerText;
}
if ( cellData.replace ) {
cellData = cellData.replace(/[\r\n]/g, '');
}
filterData.push( cellData );
}
row._aFilterData = filterData;
row._sFilterRow = filterData.join(' ');
wasInvalidated = true;
}
}
return wasInvalidated;
}
/**
* Convert from the internal Hungarian notation to camelCase for external
* interaction
* @param {object} obj Object to convert
* @returns {object} Inverted object
* @memberof DataTable#oApi
*/
function _fnSearchToCamel ( obj )
{
return {
search: obj.sSearch,
smart: obj.bSmart,
regex: obj.bRegex,
caseInsensitive: obj.bCaseInsensitive
};
}
/**
* Convert from camelCase notation to the internal Hungarian. We could use the
* Hungarian convert function here, but this is cleaner
* @param {object} obj Object to convert
* @returns {object} Inverted object
* @memberof DataTable#oApi
*/
function _fnSearchToHung ( obj )
{
return {
sSearch: obj.search,
bSmart: obj.smart,
bRegex: obj.regex,
bCaseInsensitive: obj.caseInsensitive
};
}
/**
* Generate the node required for the info display
* @param {object} oSettings dataTables settings object
* @returns {node} Information element
* @memberof DataTable#oApi
*/
function _fnFeatureHtmlInfo ( settings )
{
var
tid = settings.sTableId,
nodes = settings.aanFeatures.i,
n = $('<div/>', {
'class': settings.oClasses.sInfo,
'id': ! nodes ? tid+'_info' : null
} );
if ( ! nodes ) {
// Update display on each draw
settings.aoDrawCallback.push( {
"fn": _fnUpdateInfo,
"sName": "information"
} );
n
.attr( 'role', 'status' )
.attr( 'aria-live', 'polite' );
// Table is described by our info div
$(settings.nTable).attr( 'aria-describedby', tid+'_info' );
}
return n[0];
}
/**
* Update the information elements in the display
* @param {object} settings dataTables settings object
* @memberof DataTable#oApi
*/
function _fnUpdateInfo ( settings )
{
/* Show information about the table */
var nodes = settings.aanFeatures.i;
if ( nodes.length === 0 ) {
return;
}
var
lang = settings.oLanguage,
start = settings._iDisplayStart+1,
end = settings.fnDisplayEnd(),
max = settings.fnRecordsTotal(),
total = settings.fnRecordsDisplay(),
out = total ?
lang.sInfo :
lang.sInfoEmpty;
if ( total !== max ) {
/* Record set after filtering */
out += ' ' + lang.sInfoFiltered;
}
// Convert the macros
out += lang.sInfoPostFix;
out = _fnInfoMacros( settings, out );
var callback = lang.fnInfoCallback;
if ( callback !== null ) {
out = callback.call( settings.oInstance,
settings, start, end, max, total, out
);
}
$(nodes).html( out );
}
function _fnInfoMacros ( settings, str )
{
// When infinite scrolling, we are always starting at 1. _iDisplayStart is used only
// internally
var
formatter = settings.fnFormatNumber,
start = settings._iDisplayStart+1,
len = settings._iDisplayLength,
vis = settings.fnRecordsDisplay(),
all = len === -1;
return str.
replace(/_START_/g, formatter.call( settings, start ) ).
replace(/_END_/g, formatter.call( settings, settings.fnDisplayEnd() ) ).
replace(/_MAX_/g, formatter.call( settings, settings.fnRecordsTotal() ) ).
replace(/_TOTAL_/g, formatter.call( settings, vis ) ).
replace(/_PAGE_/g, formatter.call( settings, all ? 1 : Math.ceil( start / len ) ) ).
replace(/_PAGES_/g, formatter.call( settings, all ? 1 : Math.ceil( vis / len ) ) );
}
/**
* Draw the table for the first time, adding all required features
* @param {object} settings dataTables settings object
* @memberof DataTable#oApi
*/
function _fnInitialise ( settings )
{
var i, iLen, iAjaxStart=settings.iInitDisplayStart;
var columns = settings.aoColumns, column;
var features = settings.oFeatures;
var deferLoading = settings.bDeferLoading; // value modified by the draw
/* Ensure that the table data is fully initialised */
if ( ! settings.bInitialised ) {
setTimeout( function(){ _fnInitialise( settings ); }, 200 );
return;
}
/* Show the display HTML options */
_fnAddOptionsHtml( settings );
/* Build and draw the header / footer for the table */
_fnBuildHead( settings );
_fnDrawHead( settings, settings.aoHeader );
_fnDrawHead( settings, settings.aoFooter );
/* Okay to show that something is going on now */
_fnProcessingDisplay( settings, true );
/* Calculate sizes for columns */
if ( features.bAutoWidth ) {
_fnCalculateColumnWidths( settings );
}
for ( i=0, iLen=columns.length ; i<iLen ; i++ ) {
column = columns[i];
if ( column.sWidth ) {
column.nTh.style.width = _fnStringToCss( column.sWidth );
}
}
_fnCallbackFire( settings, null, 'preInit', [settings] );
// If there is default sorting required - let's do it. The sort function
// will do the drawing for us. Otherwise we draw the table regardless of the
// Ajax source - this allows the table to look initialised for Ajax sourcing
// data (show 'loading' message possibly)
_fnReDraw( settings );
// Server-side processing init complete is done by _fnAjaxUpdateDraw
var dataSrc = _fnDataSource( settings );
if ( dataSrc != 'ssp' || deferLoading ) {
// if there is an ajax source load the data
if ( dataSrc == 'ajax' ) {
_fnBuildAjax( settings, [], function(json) {
var aData = _fnAjaxDataSrc( settings, json );
// Got the data - add it to the table
for ( i=0 ; i<aData.length ; i++ ) {
_fnAddData( settings, aData[i] );
}
// Reset the init display for cookie saving. We've already done
// a filter, and therefore cleared it before. So we need to make
// it appear 'fresh'
settings.iInitDisplayStart = iAjaxStart;
_fnReDraw( settings );
_fnProcessingDisplay( settings, false );
_fnInitComplete( settings, json );
}, settings );
}
else {
_fnProcessingDisplay( settings, false );
_fnInitComplete( settings );
}
}
}
/**
* Draw the table for the first time, adding all required features
* @param {object} oSettings dataTables settings object
* @param {object} [json] JSON from the server that completed the table, if using Ajax source
* with client-side processing (optional)
* @memberof DataTable#oApi
*/
function _fnInitComplete ( settings, json )
{
settings._bInitComplete = true;
// When data was added after the initialisation (data or Ajax) we need to
// calculate the column sizing
if ( json || settings.oInit.aaData ) {
_fnAdjustColumnSizing( settings );
}
_fnCallbackFire( settings, null, 'plugin-init', [settings, json] );
_fnCallbackFire( settings, 'aoInitComplete', 'init', [settings, json] );
}
function _fnLengthChange ( settings, val )
{
var len = parseInt( val, 10 );
settings._iDisplayLength = len;
_fnLengthOverflow( settings );
// Fire length change event
_fnCallbackFire( settings, null, 'length', [settings, len] );
}
/**
* Generate the node required for user display length changing
* @param {object} settings dataTables settings object
* @returns {node} Display length feature node
* @memberof DataTable#oApi
*/
function _fnFeatureHtmlLength ( settings )
{
var
classes = settings.oClasses,
tableId = settings.sTableId,
menu = settings.aLengthMenu,
d2 = $.isArray( menu[0] ),
lengths = d2 ? menu[0] : menu,
language = d2 ? menu[1] : menu;
var select = $('<select/>', {
'name': tableId+'_length',
'aria-controls': tableId,
'class': classes.sLengthSelect
} );
for ( var i=0, ien=lengths.length ; i<ien ; i++ ) {
select[0][ i ] = new Option(
typeof language[i] === 'number' ?
settings.fnFormatNumber( language[i] ) :
language[i],
lengths[i]
);
}
var div = $('<div><label/></div>').addClass( classes.sLength );
if ( ! settings.aanFeatures.l ) {
div[0].id = tableId+'_length';
}
div.children().append(
settings.oLanguage.sLengthMenu.replace( '_MENU_', select[0].outerHTML )
);
// Can't use `select` variable as user might provide their own and the
// reference is broken by the use of outerHTML
$('select', div)
.val( settings._iDisplayLength )
.on( 'change.DT', function(e) {
_fnLengthChange( settings, $(this).val() );
_fnDraw( settings );
} );
// Update node value whenever anything changes the table's length
$(settings.nTable).on( 'length.dt.DT', function (e, s, len) {
if ( settings === s ) {
$('select', div).val( len );
}
} );
return div[0];
}
/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
* Note that most of the paging logic is done in
* DataTable.ext.pager
*/
/**
* Generate the node required for default pagination
* @param {object} oSettings dataTables settings object
* @returns {node} Pagination feature node
* @memberof DataTable#oApi
*/
function _fnFeatureHtmlPaginate ( settings )
{
var
type = settings.sPaginationType,
plugin = DataTable.ext.pager[ type ],
modern = typeof plugin === 'function',
redraw = function( settings ) {
_fnDraw( settings );
},
node = $('<div/>').addClass( settings.oClasses.sPaging + type )[0],
features = settings.aanFeatures;
if ( ! modern ) {
plugin.fnInit( settings, node, redraw );
}
/* Add a draw callback for the pagination on first instance, to update the paging display */
if ( ! features.p )
{
node.id = settings.sTableId+'_paginate';
settings.aoDrawCallback.push( {
"fn": function( settings ) {
if ( modern ) {
var
start = settings._iDisplayStart,
len = settings._iDisplayLength,
visRecords = settings.fnRecordsDisplay(),
all = len === -1,
page = all ? 0 : Math.ceil( start / len ),
pages = all ? 1 : Math.ceil( visRecords / len ),
buttons = plugin(page, pages),
i, ien;
for ( i=0, ien=features.p.length ; i<ien ; i++ ) {
_fnRenderer( settings, 'pageButton' )(
settings, features.p[i], i, buttons, page, pages
);
}
}
else {
plugin.fnUpdate( settings, redraw );
}
},
"sName": "pagination"
} );
}
return node;
}
/**
* Alter the display settings to change the page
* @param {object} settings DataTables settings object
* @param {string|int} action Paging action to take: "first", "previous",
* "next" or "last" or page number to jump to (integer)
* @param [bool] redraw Automatically draw the update or not
* @returns {bool} true page has changed, false - no change
* @memberof DataTable#oApi
*/
function _fnPageChange ( settings, action, redraw )
{
var
start = settings._iDisplayStart,
len = settings._iDisplayLength,
records = settings.fnRecordsDisplay();
if ( records === 0 || len === -1 )
{
start = 0;
}
else if ( typeof action === "number" )
{
start = action * len;
if ( start > records )
{
start = 0;
}
}
else if ( action == "first" )
{
start = 0;
}
else if ( action == "previous" )
{
start = len >= 0 ?
start - len :
0;
if ( start < 0 )
{
start = 0;
}
}
else if ( action == "next" )
{
if ( start + len < records )
{
start += len;
}
}
else if ( action == "last" )
{
start = Math.floor( (records-1) / len) * len;
}
else
{
_fnLog( settings, 0, "Unknown paging action: "+action, 5 );
}
var changed = settings._iDisplayStart !== start;
settings._iDisplayStart = start;
if ( changed ) {
_fnCallbackFire( settings, null, 'page', [settings] );
if ( redraw ) {
_fnDraw( settings );
}
}
return changed;
}
/**
* Generate the node required for the processing node
* @param {object} settings dataTables settings object
* @returns {node} Processing element
* @memberof DataTable#oApi
*/
function _fnFeatureHtmlProcessing ( settings )
{
return $('<div/>', {
'id': ! settings.aanFeatures.r ? settings.sTableId+'_processing' : null,
'class': settings.oClasses.sProcessing
} )
.html( settings.oLanguage.sProcessing )
.insertBefore( settings.nTable )[0];
}
/**
* Display or hide the processing indicator
* @param {object} settings dataTables settings object
* @param {bool} show Show the processing indicator (true) or not (false)
* @memberof DataTable#oApi
*/
function _fnProcessingDisplay ( settings, show )
{
if ( settings.oFeatures.bProcessing ) {
$(settings.aanFeatures.r).css( 'display', show ? 'block' : 'none' );
}
_fnCallbackFire( settings, null, 'processing', [settings, show] );
}
/**
* Add any control elements for the table - specifically scrolling
* @param {object} settings dataTables settings object
* @returns {node} Node to add to the DOM
* @memberof DataTable#oApi
*/
function _fnFeatureHtmlTable ( settings )
{
var table = $(settings.nTable);
// Add the ARIA grid role to the table
table.attr( 'role', 'grid' );
// Scrolling from here on in
var scroll = settings.oScroll;
if ( scroll.sX === '' && scroll.sY === '' ) {
return settings.nTable;
}
var scrollX = scroll.sX;
var scrollY = scroll.sY;
var classes = settings.oClasses;
var caption = table.children('caption');
var captionSide = caption.length ? caption[0]._captionSide : null;
var headerClone = $( table[0].cloneNode(false) );
var footerClone = $( table[0].cloneNode(false) );
var footer = table.children('tfoot');
var _div = '<div/>';
var size = function ( s ) {
return !s ? null : _fnStringToCss( s );
};
if ( ! footer.length ) {
footer = null;
}
/*
* The HTML structure that we want to generate in this function is:
* div - scroller
* div - scroll head
* div - scroll head inner
* table - scroll head table
* thead - thead
* div - scroll body
* table - table (master table)
* thead - thead clone for sizing
* tbody - tbody
* div - scroll foot
* div - scroll foot inner
* table - scroll foot table
* tfoot - tfoot
*/
var scroller = $( _div, { 'class': classes.sScrollWrapper } )
.append(
$(_div, { 'class': classes.sScrollHead } )
.css( {
overflow: 'hidden',
position: 'relative',
border: 0,
width: scrollX ? size(scrollX) : '100%'
} )
.append(
$(_div, { 'class': classes.sScrollHeadInner } )
.css( {
'box-sizing': 'content-box',
width: scroll.sXInner || '100%'
} )
.append(
headerClone
.removeAttr('id')
.css( 'margin-left', 0 )
.append( captionSide === 'top' ? caption : null )
.append(
table.children('thead')
)
)
)
)
.append(
$(_div, { 'class': classes.sScrollBody } )
.css( {
position: 'relative',
overflow: 'auto',
width: size( scrollX )
} )
.append( table )
);
if ( footer ) {
scroller.append(
$(_div, { 'class': classes.sScrollFoot } )
.css( {
overflow: 'hidden',
border: 0,
width: scrollX ? size(scrollX) : '100%'
} )
.append(
$(_div, { 'class': classes.sScrollFootInner } )
.append(
footerClone
.removeAttr('id')
.css( 'margin-left', 0 )
.append( captionSide === 'bottom' ? caption : null )
.append(
table.children('tfoot')
)
)
)
);
}
var children = scroller.children();
var scrollHead = children[0];
var scrollBody = children[1];
var scrollFoot = footer ? children[2] : null;
// When the body is scrolled, then we also want to scroll the headers
if ( scrollX ) {
$(scrollBody).on( 'scroll.DT', function (e) {
var scrollLeft = this.scrollLeft;
scrollHead.scrollLeft = scrollLeft;
if ( footer ) {
scrollFoot.scrollLeft = scrollLeft;
}
} );
}
$(scrollBody).css(
scrollY && scroll.bCollapse ? 'max-height' : 'height',
scrollY
);
settings.nScrollHead = scrollHead;
settings.nScrollBody = scrollBody;
settings.nScrollFoot = scrollFoot;
// On redraw - align columns
settings.aoDrawCallback.push( {
"fn": _fnScrollDraw,
"sName": "scrolling"
} );
return scroller[0];
}
/**
* Update the header, footer and body tables for resizing - i.e. column
* alignment.
*
* Welcome to the most horrible function DataTables. The process that this
* function follows is basically:
* 1. Re-create the table inside the scrolling div
* 2. Take live measurements from the DOM
* 3. Apply the measurements to align the columns
* 4. Clean up
*
* @param {object} settings dataTables settings object
* @memberof DataTable#oApi
*/
function _fnScrollDraw ( settings )
{
// Given that this is such a monster function, a lot of variables are use
// to try and keep the minimised size as small as possible
var
scroll = settings.oScroll,
scrollX = scroll.sX,
scrollXInner = scroll.sXInner,
scrollY = scroll.sY,
barWidth = scroll.iBarWidth,
divHeader = $(settings.nScrollHead),
divHeaderStyle = divHeader[0].style,
divHeaderInner = divHeader.children('div'),
divHeaderInnerStyle = divHeaderInner[0].style,
divHeaderTable = divHeaderInner.children('table'),
divBodyEl = settings.nScrollBody,
divBody = $(divBodyEl),
divBodyStyle = divBodyEl.style,
divFooter = $(settings.nScrollFoot),
divFooterInner = divFooter.children('div'),
divFooterTable = divFooterInner.children('table'),
header = $(settings.nTHead),
table = $(settings.nTable),
tableEl = table[0],
tableStyle = tableEl.style,
footer = settings.nTFoot ? $(settings.nTFoot) : null,
browser = settings.oBrowser,
ie67 = browser.bScrollOversize,
dtHeaderCells = _pluck( settings.aoColumns, 'nTh' ),
headerTrgEls, footerTrgEls,
headerSrcEls, footerSrcEls,
headerCopy, footerCopy,
headerWidths=[], footerWidths=[],
headerContent=[], footerContent=[],
idx, correction, sanityWidth,
zeroOut = function(nSizer) {
var style = nSizer.style;
style.paddingTop = "0";
style.paddingBottom = "0";
style.borderTopWidth = "0";
style.borderBottomWidth = "0";
style.height = 0;
};
// If the scrollbar visibility has changed from the last draw, we need to
// adjust the column sizes as the table width will have changed to account
// for the scrollbar
var scrollBarVis = divBodyEl.scrollHeight > divBodyEl.clientHeight;
if ( settings.scrollBarVis !== scrollBarVis && settings.scrollBarVis !== undefined ) {
settings.scrollBarVis = scrollBarVis;
_fnAdjustColumnSizing( settings );
return; // adjust column sizing will call this function again
}
else {
settings.scrollBarVis = scrollBarVis;
}
/*
* 1. Re-create the table inside the scrolling div
*/
// Remove the old minimised thead and tfoot elements in the inner table
table.children('thead, tfoot').remove();
if ( footer ) {
footerCopy = footer.clone().prependTo( table );
footerTrgEls = footer.find('tr'); // the original tfoot is in its own table and must be sized
footerSrcEls = footerCopy.find('tr');
}
// Clone the current header and footer elements and then place it into the inner table
headerCopy = header.clone().prependTo( table );
headerTrgEls = header.find('tr'); // original header is in its own table
headerSrcEls = headerCopy.find('tr');
headerCopy.find('th, td').removeAttr('tabindex');
/*
* 2. Take live measurements from the DOM - do not alter the DOM itself!
*/
// Remove old sizing and apply the calculated column widths
// Get the unique column headers in the newly created (cloned) header. We want to apply the
// calculated sizes to this header
if ( ! scrollX )
{
divBodyStyle.width = '100%';
divHeader[0].style.width = '100%';
}
$.each( _fnGetUniqueThs( settings, headerCopy ), function ( i, el ) {
idx = _fnVisibleToColumnIndex( settings, i );
el.style.width = settings.aoColumns[idx].sWidth;
} );
if ( footer ) {
_fnApplyToChildren( function(n) {
n.style.width = "";
}, footerSrcEls );
}
// Size the table as a whole
sanityWidth = table.outerWidth();
if ( scrollX === "" ) {
// No x scrolling
tableStyle.width = "100%";
// IE7 will make the width of the table when 100% include the scrollbar
// - which is shouldn't. When there is a scrollbar we need to take this
// into account.
if ( ie67 && (table.find('tbody').height() > divBodyEl.offsetHeight ||
divBody.css('overflow-y') == "scroll")
) {
tableStyle.width = _fnStringToCss( table.outerWidth() - barWidth);
}
// Recalculate the sanity width
sanityWidth = table.outerWidth();
}
else if ( scrollXInner !== "" ) {
// legacy x scroll inner has been given - use it
tableStyle.width = _fnStringToCss(scrollXInner);
// Recalculate the sanity width
sanityWidth = table.outerWidth();
}
// Hidden header should have zero height, so remove padding and borders. Then
// set the width based on the real headers
// Apply all styles in one pass
_fnApplyToChildren( zeroOut, headerSrcEls );
// Read all widths in next pass
_fnApplyToChildren( function(nSizer) {
headerContent.push( nSizer.innerHTML );
headerWidths.push( _fnStringToCss( $(nSizer).css('width') ) );
}, headerSrcEls );
// Apply all widths in final pass
_fnApplyToChildren( function(nToSize, i) {
// Only apply widths to the DataTables detected header cells - this
// prevents complex headers from having contradictory sizes applied
if ( $.inArray( nToSize, dtHeaderCells ) !== -1 ) {
nToSize.style.width = headerWidths[i];
}
}, headerTrgEls );
$(headerSrcEls).height(0);
/* Same again with the footer if we have one */
if ( footer )
{
_fnApplyToChildren( zeroOut, footerSrcEls );
_fnApplyToChildren( function(nSizer) {
footerContent.push( nSizer.innerHTML );
footerWidths.push( _fnStringToCss( $(nSizer).css('width') ) );
}, footerSrcEls );
_fnApplyToChildren( function(nToSize, i) {
nToSize.style.width = footerWidths[i];
}, footerTrgEls );
$(footerSrcEls).height(0);
}
/*
* 3. Apply the measurements
*/
// "Hide" the header and footer that we used for the sizing. We need to keep
// the content of the cell so that the width applied to the header and body
// both match, but we want to hide it completely. We want to also fix their
// width to what they currently are
_fnApplyToChildren( function(nSizer, i) {
nSizer.innerHTML = '<div class="dataTables_sizing">'+headerContent[i]+'</div>';
nSizer.childNodes[0].style.height = "0";
nSizer.childNodes[0].style.overflow = "hidden";
nSizer.style.width = headerWidths[i];
}, headerSrcEls );
if ( footer )
{
_fnApplyToChildren( function(nSizer, i) {
nSizer.innerHTML = '<div class="dataTables_sizing">'+footerContent[i]+'</div>';
nSizer.childNodes[0].style.height = "0";
nSizer.childNodes[0].style.overflow = "hidden";
nSizer.style.width = footerWidths[i];
}, footerSrcEls );
}
// Sanity check that the table is of a sensible width. If not then we are going to get
// misalignment - try to prevent this by not allowing the table to shrink below its min width
if ( table.outerWidth() < sanityWidth )
{
// The min width depends upon if we have a vertical scrollbar visible or not */
correction = ((divBodyEl.scrollHeight > divBodyEl.offsetHeight ||
divBody.css('overflow-y') == "scroll")) ?
sanityWidth+barWidth :
sanityWidth;
// IE6/7 are a law unto themselves...
if ( ie67 && (divBodyEl.scrollHeight >
divBodyEl.offsetHeight || divBody.css('overflow-y') == "scroll")
) {
tableStyle.width = _fnStringToCss( correction-barWidth );
}
// And give the user a warning that we've stopped the table getting too small
if ( scrollX === "" || scrollXInner !== "" ) {
_fnLog( settings, 1, 'Possible column misalignment', 6 );
}
}
else
{
correction = '100%';
}
// Apply to the container elements
divBodyStyle.width = _fnStringToCss( correction );
divHeaderStyle.width = _fnStringToCss( correction );
if ( footer ) {
settings.nScrollFoot.style.width = _fnStringToCss( correction );
}
/*
* 4. Clean up
*/
if ( ! scrollY ) {
/* IE7< puts a vertical scrollbar in place (when it shouldn't be) due to subtracting
* the scrollbar height from the visible display, rather than adding it on. We need to
* set the height in order to sort this. Don't want to do it in any other browsers.
*/
if ( ie67 ) {
divBodyStyle.height = _fnStringToCss( tableEl.offsetHeight+barWidth );
}
}
/* Finally set the width's of the header and footer tables */
var iOuterWidth = table.outerWidth();
divHeaderTable[0].style.width = _fnStringToCss( iOuterWidth );
divHeaderInnerStyle.width = _fnStringToCss( iOuterWidth );
// Figure out if there are scrollbar present - if so then we need a the header and footer to
// provide a bit more space to allow "overflow" scrolling (i.e. past the scrollbar)
var bScrolling = table.height() > divBodyEl.clientHeight || divBody.css('overflow-y') == "scroll";
var padding = 'padding' + (browser.bScrollbarLeft ? 'Left' : 'Right' );
divHeaderInnerStyle[ padding ] = bScrolling ? barWidth+"px" : "0px";
if ( footer ) {
divFooterTable[0].style.width = _fnStringToCss( iOuterWidth );
divFooterInner[0].style.width = _fnStringToCss( iOuterWidth );
divFooterInner[0].style[padding] = bScrolling ? barWidth+"px" : "0px";
}
// Correct DOM ordering for colgroup - comes before the thead
table.children('colgroup').insertBefore( table.children('thead') );
/* Adjust the position of the header in case we loose the y-scrollbar */
divBody.scroll();
// If sorting or filtering has occurred, jump the scrolling back to the top
// only if we aren't holding the position
if ( (settings.bSorted || settings.bFiltered) && ! settings._drawHold ) {
divBodyEl.scrollTop = 0;
}
}
/**
* Apply a given function to the display child nodes of an element array (typically
* TD children of TR rows
* @param {function} fn Method to apply to the objects
* @param array {nodes} an1 List of elements to look through for display children
* @param array {nodes} an2 Another list (identical structure to the first) - optional
* @memberof DataTable#oApi
*/
function _fnApplyToChildren( fn, an1, an2 )
{
var index=0, i=0, iLen=an1.length;
var nNode1, nNode2;
while ( i < iLen ) {
nNode1 = an1[i].firstChild;
nNode2 = an2 ? an2[i].firstChild : null;
while ( nNode1 ) {
if ( nNode1.nodeType === 1 ) {
if ( an2 ) {
fn( nNode1, nNode2, index );
}
else {
fn( nNode1, index );
}
index++;
}
nNode1 = nNode1.nextSibling;
nNode2 = an2 ? nNode2.nextSibling : null;
}
i++;
}
}
var __re_html_remove = /<.*?>/g;
/**
* Calculate the width of columns for the table
* @param {object} oSettings dataTables settings object
* @memberof DataTable#oApi
*/
function _fnCalculateColumnWidths ( oSettings )
{
var
table = oSettings.nTable,
columns = oSettings.aoColumns,
scroll = oSettings.oScroll,
scrollY = scroll.sY,
scrollX = scroll.sX,
scrollXInner = scroll.sXInner,
columnCount = columns.length,
visibleColumns = _fnGetColumns( oSettings, 'bVisible' ),
headerCells = $('th', oSettings.nTHead),
tableWidthAttr = table.getAttribute('width'), // from DOM element
tableContainer = table.parentNode,
userInputs = false,
i, column, columnIdx, width, outerWidth,
browser = oSettings.oBrowser,
ie67 = browser.bScrollOversize;
var styleWidth = table.style.width;
if ( styleWidth && styleWidth.indexOf('%') !== -1 ) {
tableWidthAttr = styleWidth;
}
/* Convert any user input sizes into pixel sizes */
for ( i=0 ; i<visibleColumns.length ; i++ ) {
column = columns[ visibleColumns[i] ];
if ( column.sWidth !== null ) {
column.sWidth = _fnConvertToWidth( column.sWidthOrig, tableContainer );
userInputs = true;
}
}
/* If the number of columns in the DOM equals the number that we have to
* process in DataTables, then we can use the offsets that are created by
* the web- browser. No custom sizes can be set in order for this to happen,
* nor scrolling used
*/
if ( ie67 || ! userInputs && ! scrollX && ! scrollY &&
columnCount == _fnVisbleColumns( oSettings ) &&
columnCount == headerCells.length
) {
for ( i=0 ; i<columnCount ; i++ ) {
var colIdx = _fnVisibleToColumnIndex( oSettings, i );
if ( colIdx !== null ) {
columns[ colIdx ].sWidth = _fnStringToCss( headerCells.eq(i).width() );
}
}
}
else
{
// Otherwise construct a single row, worst case, table with the widest
// node in the data, assign any user defined widths, then insert it into
// the DOM and allow the browser to do all the hard work of calculating
// table widths
var tmpTable = $(table).clone() // don't use cloneNode - IE8 will remove events on the main table
.css( 'visibility', 'hidden' )
.removeAttr( 'id' );
// Clean up the table body
tmpTable.find('tbody tr').remove();
var tr = $('<tr/>').appendTo( tmpTable.find('tbody') );
// Clone the table header and footer - we can't use the header / footer
// from the cloned table, since if scrolling is active, the table's
// real header and footer are contained in different table tags
tmpTable.find('thead, tfoot').remove();
tmpTable
.append( $(oSettings.nTHead).clone() )
.append( $(oSettings.nTFoot).clone() );
// Remove any assigned widths from the footer (from scrolling)
tmpTable.find('tfoot th, tfoot td').css('width', '');
// Apply custom sizing to the cloned header
headerCells = _fnGetUniqueThs( oSettings, tmpTable.find('thead')[0] );
for ( i=0 ; i<visibleColumns.length ; i++ ) {
column = columns[ visibleColumns[i] ];
headerCells[i].style.width = column.sWidthOrig !== null && column.sWidthOrig !== '' ?
_fnStringToCss( column.sWidthOrig ) :
'';
// For scrollX we need to force the column width otherwise the
// browser will collapse it. If this width is smaller than the
// width the column requires, then it will have no effect
if ( column.sWidthOrig && scrollX ) {
$( headerCells[i] ).append( $('<div/>').css( {
width: column.sWidthOrig,
margin: 0,
padding: 0,
border: 0,
height: 1
} ) );
}
}
// Find the widest cell for each column and put it into the table
if ( oSettings.aoData.length ) {
for ( i=0 ; i<visibleColumns.length ; i++ ) {
columnIdx = visibleColumns[i];
column = columns[ columnIdx ];
$( _fnGetWidestNode( oSettings, columnIdx ) )
.clone( false )
.append( column.sContentPadding )
.appendTo( tr );
}
}
// Tidy the temporary table - remove name attributes so there aren't
// duplicated in the dom (radio elements for example)
$('[name]', tmpTable).removeAttr('name');
// Table has been built, attach to the document so we can work with it.
// A holding element is used, positioned at the top of the container
// with minimal height, so it has no effect on if the container scrolls
// or not. Otherwise it might trigger scrolling when it actually isn't
// needed
var holder = $('<div/>').css( scrollX || scrollY ?
{
position: 'absolute',
top: 0,
left: 0,
height: 1,
right: 0,
overflow: 'hidden'
} :
{}
)
.append( tmpTable )
.appendTo( tableContainer );
// When scrolling (X or Y) we want to set the width of the table as
// appropriate. However, when not scrolling leave the table width as it
// is. This results in slightly different, but I think correct behaviour
if ( scrollX && scrollXInner ) {
tmpTable.width( scrollXInner );
}
else if ( scrollX ) {
tmpTable.css( 'width', 'auto' );
tmpTable.removeAttr('width');
// If there is no width attribute or style, then allow the table to
// collapse
if ( tmpTable.width() < tableContainer.clientWidth && tableWidthAttr ) {
tmpTable.width( tableContainer.clientWidth );
}
}
else if ( scrollY ) {
tmpTable.width( tableContainer.clientWidth );
}
else if ( tableWidthAttr ) {
tmpTable.width( tableWidthAttr );
}
// Get the width of each column in the constructed table - we need to
// know the inner width (so it can be assigned to the other table's
// cells) and the outer width so we can calculate the full width of the
// table. This is safe since DataTables requires a unique cell for each
// column, but if ever a header can span multiple columns, this will
// need to be modified.
var total = 0;
for ( i=0 ; i<visibleColumns.length ; i++ ) {
var cell = $(headerCells[i]);
var border = cell.outerWidth() - cell.width();
// Use getBounding... where possible (not IE8-) because it can give
// sub-pixel accuracy, which we then want to round up!
var bounding = browser.bBounding ?
Math.ceil( headerCells[i].getBoundingClientRect().width ) :
cell.outerWidth();
// Total is tracked to remove any sub-pixel errors as the outerWidth
// of the table might not equal the total given here (IE!).
total += bounding;
// Width for each column to use
columns[ visibleColumns[i] ].sWidth = _fnStringToCss( bounding - border );
}
table.style.width = _fnStringToCss( total );
// Finished with the table - ditch it
holder.remove();
}
// If there is a width attr, we want to attach an event listener which
// allows the table sizing to automatically adjust when the window is
// resized. Use the width attr rather than CSS, since we can't know if the
// CSS is a relative value or absolute - DOM read is always px.
if ( tableWidthAttr ) {
table.style.width = _fnStringToCss( tableWidthAttr );
}
if ( (tableWidthAttr || scrollX) && ! oSettings._reszEvt ) {
var bindResize = function () {
$(window).on('resize.DT-'+oSettings.sInstance, _fnThrottle( function () {
_fnAdjustColumnSizing( oSettings );
} ) );
};
// IE6/7 will crash if we bind a resize event handler on page load.
// To be removed in 1.11 which drops IE6/7 support
if ( ie67 ) {
setTimeout( bindResize, 1000 );
}
else {
bindResize();
}
oSettings._reszEvt = true;
}
}
/**
* Throttle the calls to a function. Arguments and context are maintained for
* the throttled function
* @param {function} fn Function to be called
* @param {int} [freq=200] call frequency in mS
* @returns {function} wrapped function
* @memberof DataTable#oApi
*/
var _fnThrottle = DataTable.util.throttle;
/**
* Convert a CSS unit width to pixels (e.g. 2em)
* @param {string} width width to be converted
* @param {node} parent parent to get the with for (required for relative widths) - optional
* @returns {int} width in pixels
* @memberof DataTable#oApi
*/
function _fnConvertToWidth ( width, parent )
{
if ( ! width ) {
return 0;
}
var n = $('<div/>')
.css( 'width', _fnStringToCss( width ) )
.appendTo( parent || document.body );
var val = n[0].offsetWidth;
n.remove();
return val;
}
/**
* Get the widest node
* @param {object} settings dataTables settings object
* @param {int} colIdx column of interest
* @returns {node} widest table node
* @memberof DataTable#oApi
*/
function _fnGetWidestNode( settings, colIdx )
{
var idx = _fnGetMaxLenString( settings, colIdx );
if ( idx < 0 ) {
return null;
}
var data = settings.aoData[ idx ];
return ! data.nTr ? // Might not have been created when deferred rendering
$('<td/>').html( _fnGetCellData( settings, idx, colIdx, 'display' ) )[0] :
data.anCells[ colIdx ];
}
/**
* Get the maximum strlen for each data column
* @param {object} settings dataTables settings object
* @param {int} colIdx column of interest
* @returns {string} max string length for each column
* @memberof DataTable#oApi
*/
function _fnGetMaxLenString( settings, colIdx )
{
var s, max=-1, maxIdx = -1;
for ( var i=0, ien=settings.aoData.length ; i<ien ; i++ ) {
s = _fnGetCellData( settings, i, colIdx, 'display' )+'';
s = s.replace( __re_html_remove, '' );
s = s.replace( / /g, ' ' );
if ( s.length > max ) {
max = s.length;
maxIdx = i;
}
}
return maxIdx;
}
/**
* Append a CSS unit (only if required) to a string
* @param {string} value to css-ify
* @returns {string} value with css unit
* @memberof DataTable#oApi
*/
function _fnStringToCss( s )
{
if ( s === null ) {
return '0px';
}
if ( typeof s == 'number' ) {
return s < 0 ?
'0px' :
s+'px';
}
// Check it has a unit character already
return s.match(/\d$/) ?
s+'px' :
s;
}
function _fnSortFlatten ( settings )
{
var
i, iLen, k, kLen,
aSort = [],
aiOrig = [],
aoColumns = settings.aoColumns,
aDataSort, iCol, sType, srcCol,
fixed = settings.aaSortingFixed,
fixedObj = $.isPlainObject( fixed ),
nestedSort = [],
add = function ( a ) {
if ( a.length && ! $.isArray( a[0] ) ) {
// 1D array
nestedSort.push( a );
}
else {
// 2D array
$.merge( nestedSort, a );
}
};
// Build the sort array, with pre-fix and post-fix options if they have been
// specified
if ( $.isArray( fixed ) ) {
add( fixed );
}
if ( fixedObj && fixed.pre ) {
add( fixed.pre );
}
add( settings.aaSorting );
if (fixedObj && fixed.post ) {
add( fixed.post );
}
for ( i=0 ; i<nestedSort.length ; i++ )
{
srcCol = nestedSort[i][0];
aDataSort = aoColumns[ srcCol ].aDataSort;
for ( k=0, kLen=aDataSort.length ; k<kLen ; k++ )
{
iCol = aDataSort[k];
sType = aoColumns[ iCol ].sType || 'string';
if ( nestedSort[i]._idx === undefined ) {
nestedSort[i]._idx = $.inArray( nestedSort[i][1], aoColumns[iCol].asSorting );
}
aSort.push( {
src: srcCol,
col: iCol,
dir: nestedSort[i][1],
index: nestedSort[i]._idx,
type: sType,
formatter: DataTable.ext.type.order[ sType+"-pre" ]
} );
}
}
return aSort;
}
/**
* Change the order of the table
* @param {object} oSettings dataTables settings object
* @memberof DataTable#oApi
* @todo This really needs split up!
*/
function _fnSort ( oSettings )
{
var
i, ien, iLen, j, jLen, k, kLen,
sDataType, nTh,
aiOrig = [],
oExtSort = DataTable.ext.type.order,
aoData = oSettings.aoData,
aoColumns = oSettings.aoColumns,
aDataSort, data, iCol, sType, oSort,
formatters = 0,
sortCol,
displayMaster = oSettings.aiDisplayMaster,
aSort;
// Resolve any column types that are unknown due to addition or invalidation
// @todo Can this be moved into a 'data-ready' handler which is called when
// data is going to be used in the table?
_fnColumnTypes( oSettings );
aSort = _fnSortFlatten( oSettings );
for ( i=0, ien=aSort.length ; i<ien ; i++ ) {
sortCol = aSort[i];
// Track if we can use the fast sort algorithm
if ( sortCol.formatter ) {
formatters++;
}
// Load the data needed for the sort, for each cell
_fnSortData( oSettings, sortCol.col );
}
/* No sorting required if server-side or no sorting array */
if ( _fnDataSource( oSettings ) != 'ssp' && aSort.length !== 0 )
{
// Create a value - key array of the current row positions such that we can use their
// current position during the sort, if values match, in order to perform stable sorting
for ( i=0, iLen=displayMaster.length ; i<iLen ; i++ ) {
aiOrig[ displayMaster[i] ] = i;
}
/* Do the sort - here we want multi-column sorting based on a given data source (column)
* and sorting function (from oSort) in a certain direction. It's reasonably complex to
* follow on it's own, but this is what we want (example two column sorting):
* fnLocalSorting = function(a,b){
* var iTest;
* iTest = oSort['string-asc']('data11', 'data12');
* if (iTest !== 0)
* return iTest;
* iTest = oSort['numeric-desc']('data21', 'data22');
* if (iTest !== 0)
* return iTest;
* return oSort['numeric-asc']( aiOrig[a], aiOrig[b] );
* }
* Basically we have a test for each sorting column, if the data in that column is equal,
* test the next column. If all columns match, then we use a numeric sort on the row
* positions in the original data array to provide a stable sort.
*
* Note - I know it seems excessive to have two sorting methods, but the first is around
* 15% faster, so the second is only maintained for backwards compatibility with sorting
* methods which do not have a pre-sort formatting function.
*/
if ( formatters === aSort.length ) {
// All sort types have formatting functions
displayMaster.sort( function ( a, b ) {
var
x, y, k, test, sort,
len=aSort.length,
dataA = aoData[a]._aSortData,
dataB = aoData[b]._aSortData;
for ( k=0 ; k<len ; k++ ) {
sort = aSort[k];
x = dataA[ sort.col ];
y = dataB[ sort.col ];
test = x<y ? -1 : x>y ? 1 : 0;
if ( test !== 0 ) {
return sort.dir === 'asc' ? test : -test;
}
}
x = aiOrig[a];
y = aiOrig[b];
return x<y ? -1 : x>y ? 1 : 0;
} );
}
else {
// Depreciated - remove in 1.11 (providing a plug-in option)
// Not all sort types have formatting methods, so we have to call their sorting
// methods.
displayMaster.sort( function ( a, b ) {
var
x, y, k, l, test, sort, fn,
len=aSort.length,
dataA = aoData[a]._aSortData,
dataB = aoData[b]._aSortData;
for ( k=0 ; k<len ; k++ ) {
sort = aSort[k];
x = dataA[ sort.col ];
y = dataB[ sort.col ];
fn = oExtSort[ sort.type+"-"+sort.dir ] || oExtSort[ "string-"+sort.dir ];
test = fn( x, y );
if ( test !== 0 ) {
return test;
}
}
x = aiOrig[a];
y = aiOrig[b];
return x<y ? -1 : x>y ? 1 : 0;
} );
}
}
/* Tell the draw function that we have sorted the data */
oSettings.bSorted = true;
}
function _fnSortAria ( settings )
{
var label;
var nextSort;
var columns = settings.aoColumns;
var aSort = _fnSortFlatten( settings );
var oAria = settings.oLanguage.oAria;
// ARIA attributes - need to loop all columns, to update all (removing old
// attributes as needed)
for ( var i=0, iLen=columns.length ; i<iLen ; i++ )
{
var col = columns[i];
var asSorting = col.asSorting;
var sTitle = col.sTitle.replace( /<.*?>/g, "" );
var th = col.nTh;
// IE7 is throwing an error when setting these properties with jQuery's
// attr() and removeAttr() methods...
th.removeAttribute('aria-sort');
/* In ARIA only the first sorting column can be marked as sorting - no multi-sort option */
if ( col.bSortable ) {
if ( aSort.length > 0 && aSort[0].col == i ) {
th.setAttribute('aria-sort', aSort[0].dir=="asc" ? "ascending" : "descending" );
nextSort = asSorting[ aSort[0].index+1 ] || asSorting[0];
}
else {
nextSort = asSorting[0];
}
label = sTitle + ( nextSort === "asc" ?
oAria.sSortAscending :
oAria.sSortDescending
);
}
else {
label = sTitle;
}
th.setAttribute('aria-label', label);
}
}
/**
* Function to run on user sort request
* @param {object} settings dataTables settings object
* @param {node} attachTo node to attach the handler to
* @param {int} colIdx column sorting index
* @param {boolean} [append=false] Append the requested sort to the existing
* sort if true (i.e. multi-column sort)
* @param {function} [callback] callback function
* @memberof DataTable#oApi
*/
function _fnSortListener ( settings, colIdx, append, callback )
{
var col = settings.aoColumns[ colIdx ];
var sorting = settings.aaSorting;
var asSorting = col.asSorting;
var nextSortIdx;
var next = function ( a, overflow ) {
var idx = a._idx;
if ( idx === undefined ) {
idx = $.inArray( a[1], asSorting );
}
return idx+1 < asSorting.length ?
idx+1 :
overflow ?
null :
0;
};
// Convert to 2D array if needed
if ( typeof sorting[0] === 'number' ) {
sorting = settings.aaSorting = [ sorting ];
}
// If appending the sort then we are multi-column sorting
if ( append && settings.oFeatures.bSortMulti ) {
// Are we already doing some kind of sort on this column?
var sortIdx = $.inArray( colIdx, _pluck(sorting, '0') );
if ( sortIdx !== -1 ) {
// Yes, modify the sort
nextSortIdx = next( sorting[sortIdx], true );
if ( nextSortIdx === null && sorting.length === 1 ) {
nextSortIdx = 0; // can't remove sorting completely
}
if ( nextSortIdx === null ) {
sorting.splice( sortIdx, 1 );
}
else {
sorting[sortIdx][1] = asSorting[ nextSortIdx ];
sorting[sortIdx]._idx = nextSortIdx;
}
}
else {
// No sort on this column yet
sorting.push( [ colIdx, asSorting[0], 0 ] );
sorting[sorting.length-1]._idx = 0;
}
}
else if ( sorting.length && sorting[0][0] == colIdx ) {
// Single column - already sorting on this column, modify the sort
nextSortIdx = next( sorting[0] );
sorting.length = 1;
sorting[0][1] = asSorting[ nextSortIdx ];
sorting[0]._idx = nextSortIdx;
}
else {
// Single column - sort only on this column
sorting.length = 0;
sorting.push( [ colIdx, asSorting[0] ] );
sorting[0]._idx = 0;
}
// Run the sort by calling a full redraw
_fnReDraw( settings );
// callback used for async user interaction
if ( typeof callback == 'function' ) {
callback( settings );
}
}
/**
* Attach a sort handler (click) to a node
* @param {object} settings dataTables settings object
* @param {node} attachTo node to attach the handler to
* @param {int} colIdx column sorting index
* @param {function} [callback] callback function
* @memberof DataTable#oApi
*/
function _fnSortAttachListener ( settings, attachTo, colIdx, callback )
{
var col = settings.aoColumns[ colIdx ];
_fnBindAction( attachTo, {}, function (e) {
/* If the column is not sortable - don't to anything */
if ( col.bSortable === false ) {
return;
}
// If processing is enabled use a timeout to allow the processing
// display to be shown - otherwise to it synchronously
if ( settings.oFeatures.bProcessing ) {
_fnProcessingDisplay( settings, true );
setTimeout( function() {
_fnSortListener( settings, colIdx, e.shiftKey, callback );
// In server-side processing, the draw callback will remove the
// processing display
if ( _fnDataSource( settings ) !== 'ssp' ) {
_fnProcessingDisplay( settings, false );
}
}, 0 );
}
else {
_fnSortListener( settings, colIdx, e.shiftKey, callback );
}
} );
}
/**
* Set the sorting classes on table's body, Note: it is safe to call this function
* when bSort and bSortClasses are false
* @param {object} oSettings dataTables settings object
* @memberof DataTable#oApi
*/
function _fnSortingClasses( settings )
{
var oldSort = settings.aLastSort;
var sortClass = settings.oClasses.sSortColumn;
var sort = _fnSortFlatten( settings );
var features = settings.oFeatures;
var i, ien, colIdx;
if ( features.bSort && features.bSortClasses ) {
// Remove old sorting classes
for ( i=0, ien=oldSort.length ; i<ien ; i++ ) {
colIdx = oldSort[i].src;
// Remove column sorting
$( _pluck( settings.aoData, 'anCells', colIdx ) )
.removeClass( sortClass + (i<2 ? i+1 : 3) );
}
// Add new column sorting
for ( i=0, ien=sort.length ; i<ien ; i++ ) {
colIdx = sort[i].src;
$( _pluck( settings.aoData, 'anCells', colIdx ) )
.addClass( sortClass + (i<2 ? i+1 : 3) );
}
}
settings.aLastSort = sort;
}
// Get the data to sort a column, be it from cache, fresh (populating the
// cache), or from a sort formatter
function _fnSortData( settings, idx )
{
// Custom sorting function - provided by the sort data type
var column = settings.aoColumns[ idx ];
var customSort = DataTable.ext.order[ column.sSortDataType ];
var customData;
if ( customSort ) {
customData = customSort.call( settings.oInstance, settings, idx,
_fnColumnIndexToVisible( settings, idx )
);
}
// Use / populate cache
var row, cellData;
var formatter = DataTable.ext.type.order[ column.sType+"-pre" ];
for ( var i=0, ien=settings.aoData.length ; i<ien ; i++ ) {
row = settings.aoData[i];
if ( ! row._aSortData ) {
row._aSortData = [];
}
if ( ! row._aSortData[idx] || customSort ) {
cellData = customSort ?
customData[i] : // If there was a custom sort function, use data from there
_fnGetCellData( settings, i, idx, 'sort' );
row._aSortData[ idx ] = formatter ?
formatter( cellData ) :
cellData;
}
}
}
/**
* Save the state of a table
* @param {object} oSettings dataTables settings object
* @memberof DataTable#oApi
*/
function _fnSaveState ( settings )
{
if ( !settings.oFeatures.bStateSave || settings.bDestroying )
{
return;
}
/* Store the interesting variables */
var state = {
time: +new Date(),
start: settings._iDisplayStart,
length: settings._iDisplayLength,
order: $.extend( true, [], settings.aaSorting ),
search: _fnSearchToCamel( settings.oPreviousSearch ),
columns: $.map( settings.aoColumns, function ( col, i ) {
return {
visible: col.bVisible,
search: _fnSearchToCamel( settings.aoPreSearchCols[i] )
};
} )
};
_fnCallbackFire( settings, "aoStateSaveParams", 'stateSaveParams', [settings, state] );
settings.oSavedState = state;
settings.fnStateSaveCallback.call( settings.oInstance, settings, state );
}
/**
* Attempt to load a saved table state
* @param {object} oSettings dataTables settings object
* @param {object} oInit DataTables init object so we can override settings
* @param {function} callback Callback to execute when the state has been loaded
* @memberof DataTable#oApi
*/
function _fnLoadState ( settings, oInit, callback )
{
var i, ien;
var columns = settings.aoColumns;
var loaded = function ( s ) {
if ( ! s || ! s.time ) {
callback();
return;
}
// Allow custom and plug-in manipulation functions to alter the saved data set and
// cancelling of loading by returning false
var abStateLoad = _fnCallbackFire( settings, 'aoStateLoadParams', 'stateLoadParams', [settings, s] );
if ( $.inArray( false, abStateLoad ) !== -1 ) {
callback();
return;
}
// Reject old data
var duration = settings.iStateDuration;
if ( duration > 0 && s.time < +new Date() - (duration*1000) ) {
callback();
return;
}
// Number of columns have changed - all bets are off, no restore of settings
if ( s.columns && columns.length !== s.columns.length ) {
callback();
return;
}
// Store the saved state so it might be accessed at any time
settings.oLoadedState = $.extend( true, {}, s );
// Restore key features - todo - for 1.11 this needs to be done by
// subscribed events
if ( s.start !== undefined ) {
settings._iDisplayStart = s.start;
settings.iInitDisplayStart = s.start;
}
if ( s.length !== undefined ) {
settings._iDisplayLength = s.length;
}
// Order
if ( s.order !== undefined ) {
settings.aaSorting = [];
$.each( s.order, function ( i, col ) {
settings.aaSorting.push( col[0] >= columns.length ?
[ 0, col[1] ] :
col
);
} );
}
// Search
if ( s.search !== undefined ) {
$.extend( settings.oPreviousSearch, _fnSearchToHung( s.search ) );
}
// Columns
//
if ( s.columns ) {
for ( i=0, ien=s.columns.length ; i<ien ; i++ ) {
var col = s.columns[i];
// Visibility
if ( col.visible !== undefined ) {
columns[i].bVisible = col.visible;
}
// Search
if ( col.search !== undefined ) {
$.extend( settings.aoPreSearchCols[i], _fnSearchToHung( col.search ) );
}
}
}
_fnCallbackFire( settings, 'aoStateLoaded', 'stateLoaded', [settings, s] );
callback();
}
if ( ! settings.oFeatures.bStateSave ) {
callback();
return;
}
var state = settings.fnStateLoadCallback.call( settings.oInstance, settings, loaded );
if ( state !== undefined ) {
loaded( state );
}
// otherwise, wait for the loaded callback to be executed
}
/**
* Return the settings object for a particular table
* @param {node} table table we are using as a dataTable
* @returns {object} Settings object - or null if not found
* @memberof DataTable#oApi
*/
function _fnSettingsFromNode ( table )
{
var settings = DataTable.settings;
var idx = $.inArray( table, _pluck( settings, 'nTable' ) );
return idx !== -1 ?
settings[ idx ] :
null;
}
/**
* Log an error message
* @param {object} settings dataTables settings object
* @param {int} level log error messages, or display them to the user
* @param {string} msg error message
* @param {int} tn Technical note id to get more information about the error.
* @memberof DataTable#oApi
*/
function _fnLog( settings, level, msg, tn )
{
msg = 'DataTables warning: '+
(settings ? 'table id='+settings.sTableId+' - ' : '')+msg;
if ( tn ) {
msg += '. For more information about this error, please see '+
'http://datatables.net/tn/'+tn;
}
if ( ! level ) {
// Backwards compatibility pre 1.10
var ext = DataTable.ext;
var type = ext.sErrMode || ext.errMode;
if ( settings ) {
_fnCallbackFire( settings, null, 'error', [ settings, tn, msg ] );
}
if ( type == 'alert' ) {
alert( msg );
}
else if ( type == 'throw' ) {
throw new Error(msg);
}
else if ( typeof type == 'function' ) {
type( settings, tn, msg );
}
}
else if ( window.console && console.log ) {
console.log( msg );
}
}
/**
* See if a property is defined on one object, if so assign it to the other object
* @param {object} ret target object
* @param {object} src source object
* @param {string} name property
* @param {string} [mappedName] name to map too - optional, name used if not given
* @memberof DataTable#oApi
*/
function _fnMap( ret, src, name, mappedName )
{
if ( $.isArray( name ) ) {
$.each( name, function (i, val) {
if ( $.isArray( val ) ) {
_fnMap( ret, src, val[0], val[1] );
}
else {
_fnMap( ret, src, val );
}
} );
return;
}
if ( mappedName === undefined ) {
mappedName = name;
}
if ( src[name] !== undefined ) {
ret[mappedName] = src[name];
}
}
/**
* Extend objects - very similar to jQuery.extend, but deep copy objects, and
* shallow copy arrays. The reason we need to do this, is that we don't want to
* deep copy array init values (such as aaSorting) since the dev wouldn't be
* able to override them, but we do want to deep copy arrays.
* @param {object} out Object to extend
* @param {object} extender Object from which the properties will be applied to
* out
* @param {boolean} breakRefs If true, then arrays will be sliced to take an
* independent copy with the exception of the `data` or `aaData` parameters
* if they are present. This is so you can pass in a collection to
* DataTables and have that used as your data source without breaking the
* references
* @returns {object} out Reference, just for convenience - out === the return.
* @memberof DataTable#oApi
* @todo This doesn't take account of arrays inside the deep copied objects.
*/
function _fnExtend( out, extender, breakRefs )
{
var val;
for ( var prop in extender ) {
if ( extender.hasOwnProperty(prop) ) {
val = extender[prop];
if ( $.isPlainObject( val ) ) {
if ( ! $.isPlainObject( out[prop] ) ) {
out[prop] = {};
}
$.extend( true, out[prop], val );
}
else if ( breakRefs && prop !== 'data' && prop !== 'aaData' && $.isArray(val) ) {
out[prop] = val.slice();
}
else {
out[prop] = val;
}
}
}
return out;
}
/**
* Bind an event handers to allow a click or return key to activate the callback.
* This is good for accessibility since a return on the keyboard will have the
* same effect as a click, if the element has focus.
* @param {element} n Element to bind the action to
* @param {object} oData Data object to pass to the triggered function
* @param {function} fn Callback function for when the event is triggered
* @memberof DataTable#oApi
*/
function _fnBindAction( n, oData, fn )
{
$(n)
.on( 'click.DT', oData, function (e) {
$(n).blur(); // Remove focus outline for mouse users
fn(e);
} )
.on( 'keypress.DT', oData, function (e){
if ( e.which === 13 ) {
e.preventDefault();
fn(e);
}
} )
.on( 'selectstart.DT', function () {
/* Take the brutal approach to cancelling text selection */
return false;
} );
}
/**
* Register a callback function. Easily allows a callback function to be added to
* an array store of callback functions that can then all be called together.
* @param {object} oSettings dataTables settings object
* @param {string} sStore Name of the array storage for the callbacks in oSettings
* @param {function} fn Function to be called back
* @param {string} sName Identifying name for the callback (i.e. a label)
* @memberof DataTable#oApi
*/
function _fnCallbackReg( oSettings, sStore, fn, sName )
{
if ( fn )
{
oSettings[sStore].push( {
"fn": fn,
"sName": sName
} );
}
}
/**
* Fire callback functions and trigger events. Note that the loop over the
* callback array store is done backwards! Further note that you do not want to
* fire off triggers in time sensitive applications (for example cell creation)
* as its slow.
* @param {object} settings dataTables settings object
* @param {string} callbackArr Name of the array storage for the callbacks in
* oSettings
* @param {string} eventName Name of the jQuery custom event to trigger. If
* null no trigger is fired
* @param {array} args Array of arguments to pass to the callback function /
* trigger
* @memberof DataTable#oApi
*/
function _fnCallbackFire( settings, callbackArr, eventName, args )
{
var ret = [];
if ( callbackArr ) {
ret = $.map( settings[callbackArr].slice().reverse(), function (val, i) {
return val.fn.apply( settings.oInstance, args );
} );
}
if ( eventName !== null ) {
var e = $.Event( eventName+'.dt' );
$(settings.nTable).trigger( e, args );
ret.push( e.result );
}
return ret;
}
function _fnLengthOverflow ( settings )
{
var
start = settings._iDisplayStart,
end = settings.fnDisplayEnd(),
len = settings._iDisplayLength;
/* If we have space to show extra rows (backing up from the end point - then do so */
if ( start >= end )
{
start = end - len;
}
// Keep the start record on the current page
start -= (start % len);
if ( len === -1 || start < 0 )
{
start = 0;
}
settings._iDisplayStart = start;
}
function _fnRenderer( settings, type )
{
var renderer = settings.renderer;
var host = DataTable.ext.renderer[type];
if ( $.isPlainObject( renderer ) && renderer[type] ) {
// Specific renderer for this type. If available use it, otherwise use
// the default.
return host[renderer[type]] || host._;
}
else if ( typeof renderer === 'string' ) {
// Common renderer - if there is one available for this type use it,
// otherwise use the default
return host[renderer] || host._;
}
// Use the default
return host._;
}
/**
* Detect the data source being used for the table. Used to simplify the code
* a little (ajax) and to make it compress a little smaller.
*
* @param {object} settings dataTables settings object
* @returns {string} Data source
* @memberof DataTable#oApi
*/
function _fnDataSource ( settings )
{
if ( settings.oFeatures.bServerSide ) {
return 'ssp';
}
else if ( settings.ajax || settings.sAjaxSource ) {
return 'ajax';
}
return 'dom';
}
/**
* Computed structure of the DataTables API, defined by the options passed to
* `DataTable.Api.register()` when building the API.
*
* The structure is built in order to speed creation and extension of the Api
* objects since the extensions are effectively pre-parsed.
*
* The array is an array of objects with the following structure, where this
* base array represents the Api prototype base:
*
* [
* {
* name: 'data' -- string - Property name
* val: function () {}, -- function - Api method (or undefined if just an object
* methodExt: [ ... ], -- array - Array of Api object definitions to extend the method result
* propExt: [ ... ] -- array - Array of Api object definitions to extend the property
* },
* {
* name: 'row'
* val: {},
* methodExt: [ ... ],
* propExt: [
* {
* name: 'data'
* val: function () {},
* methodExt: [ ... ],
* propExt: [ ... ]
* },
* ...
* ]
* }
* ]
*
* @type {Array}
* @ignore
*/
var __apiStruct = [];
/**
* `Array.prototype` reference.
*
* @type object
* @ignore
*/
var __arrayProto = Array.prototype;
/**
* Abstraction for `context` parameter of the `Api` constructor to allow it to
* take several different forms for ease of use.
*
* Each of the input parameter types will be converted to a DataTables settings
* object where possible.
*
* @param {string|node|jQuery|object} mixed DataTable identifier. Can be one
* of:
*
* * `string` - jQuery selector. Any DataTables' matching the given selector
* with be found and used.
* * `node` - `TABLE` node which has already been formed into a DataTable.
* * `jQuery` - A jQuery object of `TABLE` nodes.
* * `object` - DataTables settings object
* * `DataTables.Api` - API instance
* @return {array|null} Matching DataTables settings objects. `null` or
* `undefined` is returned if no matching DataTable is found.
* @ignore
*/
var _toSettings = function ( mixed )
{
var idx, jq;
var settings = DataTable.settings;
var tables = $.map( settings, function (el, i) {
return el.nTable;
} );
if ( ! mixed ) {
return [];
}
else if ( mixed.nTable && mixed.oApi ) {
// DataTables settings object
return [ mixed ];
}
else if ( mixed.nodeName && mixed.nodeName.toLowerCase() === 'table' ) {
// Table node
idx = $.inArray( mixed, tables );
return idx !== -1 ? [ settings[idx] ] : null;
}
else if ( mixed && typeof mixed.settings === 'function' ) {
return mixed.settings().toArray();
}
else if ( typeof mixed === 'string' ) {
// jQuery selector
jq = $(mixed);
}
else if ( mixed instanceof $ ) {
// jQuery object (also DataTables instance)
jq = mixed;
}
if ( jq ) {
return jq.map( function(i) {
idx = $.inArray( this, tables );
return idx !== -1 ? settings[idx] : null;
} ).toArray();
}
};
/**
* DataTables API class - used to control and interface with one or more
* DataTables enhanced tables.
*
* The API class is heavily based on jQuery, presenting a chainable interface
* that you can use to interact with tables. Each instance of the API class has
* a "context" - i.e. the tables that it will operate on. This could be a single
* table, all tables on a page or a sub-set thereof.
*
* Additionally the API is designed to allow you to easily work with the data in
* the tables, retrieving and manipulating it as required. This is done by
* presenting the API class as an array like interface. The contents of the
* array depend upon the actions requested by each method (for example
* `rows().nodes()` will return an array of nodes, while `rows().data()` will
* return an array of objects or arrays depending upon your table's
* configuration). The API object has a number of array like methods (`push`,
* `pop`, `reverse` etc) as well as additional helper methods (`each`, `pluck`,
* `unique` etc) to assist your working with the data held in a table.
*
* Most methods (those which return an Api instance) are chainable, which means
* the return from a method call also has all of the methods available that the
* top level object had. For example, these two calls are equivalent:
*
* // Not chained
* api.row.add( {...} );
* api.draw();
*
* // Chained
* api.row.add( {...} ).draw();
*
* @class DataTable.Api
* @param {array|object|string|jQuery} context DataTable identifier. This is
* used to define which DataTables enhanced tables this API will operate on.
* Can be one of:
*
* * `string` - jQuery selector. Any DataTables' matching the given selector
* with be found and used.
* * `node` - `TABLE` node which has already been formed into a DataTable.
* * `jQuery` - A jQuery object of `TABLE` nodes.
* * `object` - DataTables settings object
* @param {array} [data] Data to initialise the Api instance with.
*
* @example
* // Direct initialisation during DataTables construction
* var api = $('#example').DataTable();
*
* @example
* // Initialisation using a DataTables jQuery object
* var api = $('#example').dataTable().api();
*
* @example
* // Initialisation as a constructor
* var api = new $.fn.DataTable.Api( 'table.dataTable' );
*/
_Api = function ( context, data )
{
if ( ! (this instanceof _Api) ) {
return new _Api( context, data );
}
var settings = [];
var ctxSettings = function ( o ) {
var a = _toSettings( o );
if ( a ) {
settings = settings.concat( a );
}
};
if ( $.isArray( context ) ) {
for ( var i=0, ien=context.length ; i<ien ; i++ ) {
ctxSettings( context[i] );
}
}
else {
ctxSettings( context );
}
// Remove duplicates
this.context = _unique( settings );
// Initial data
if ( data ) {
$.merge( this, data );
}
// selector
this.selector = {
rows: null,
cols: null,
opts: null
};
_Api.extend( this, this, __apiStruct );
};
DataTable.Api = _Api;
// Don't destroy the existing prototype, just extend it. Required for jQuery 2's
// isPlainObject.
$.extend( _Api.prototype, {
any: function ()
{
return this.count() !== 0;
},
concat: __arrayProto.concat,
context: [], // array of table settings objects
count: function ()
{
return this.flatten().length;
},
each: function ( fn )
{
for ( var i=0, ien=this.length ; i<ien; i++ ) {
fn.call( this, this[i], i, this );
}
return this;
},
eq: function ( idx )
{
var ctx = this.context;
return ctx.length > idx ?
new _Api( ctx[idx], this[idx] ) :
null;
},
filter: function ( fn )
{
var a = [];
if ( __arrayProto.filter ) {
a = __arrayProto.filter.call( this, fn, this );
}
else {
// Compatibility for browsers without EMCA-252-5 (JS 1.6)
for ( var i=0, ien=this.length ; i<ien ; i++ ) {
if ( fn.call( this, this[i], i, this ) ) {
a.push( this[i] );
}
}
}
return new _Api( this.context, a );
},
flatten: function ()
{
var a = [];
return new _Api( this.context, a.concat.apply( a, this.toArray() ) );
},
join: __arrayProto.join,
indexOf: __arrayProto.indexOf || function (obj, start)
{
for ( var i=(start || 0), ien=this.length ; i<ien ; i++ ) {
if ( this[i] === obj ) {
return i;
}
}
return -1;
},
iterator: function ( flatten, type, fn, alwaysNew ) {
var
a = [], ret,
i, ien, j, jen,
context = this.context,
rows, items, item,
selector = this.selector;
// Argument shifting
if ( typeof flatten === 'string' ) {
alwaysNew = fn;
fn = type;
type = flatten;
flatten = false;
}
for ( i=0, ien=context.length ; i<ien ; i++ ) {
var apiInst = new _Api( context[i] );
if ( type === 'table' ) {
ret = fn.call( apiInst, context[i], i );
if ( ret !== undefined ) {
a.push( ret );
}
}
else if ( type === 'columns' || type === 'rows' ) {
// this has same length as context - one entry for each table
ret = fn.call( apiInst, context[i], this[i], i );
if ( ret !== undefined ) {
a.push( ret );
}
}
else if ( type === 'column' || type === 'column-rows' || type === 'row' || type === 'cell' ) {
// columns and rows share the same structure.
// 'this' is an array of column indexes for each context
items = this[i];
if ( type === 'column-rows' ) {
rows = _selector_row_indexes( context[i], selector.opts );
}
for ( j=0, jen=items.length ; j<jen ; j++ ) {
item = items[j];
if ( type === 'cell' ) {
ret = fn.call( apiInst, context[i], item.row, item.column, i, j );
}
else {
ret = fn.call( apiInst, context[i], item, i, j, rows );
}
if ( ret !== undefined ) {
a.push( ret );
}
}
}
}
if ( a.length || alwaysNew ) {
var api = new _Api( context, flatten ? a.concat.apply( [], a ) : a );
var apiSelector = api.selector;
apiSelector.rows = selector.rows;
apiSelector.cols = selector.cols;
apiSelector.opts = selector.opts;
return api;
}
return this;
},
lastIndexOf: __arrayProto.lastIndexOf || function (obj, start)
{
// Bit cheeky...
return this.indexOf.apply( this.toArray.reverse(), arguments );
},
length: 0,
map: function ( fn )
{
var a = [];
if ( __arrayProto.map ) {
a = __arrayProto.map.call( this, fn, this );
}
else {
// Compatibility for browsers without EMCA-252-5 (JS 1.6)
for ( var i=0, ien=this.length ; i<ien ; i++ ) {
a.push( fn.call( this, this[i], i ) );
}
}
return new _Api( this.context, a );
},
pluck: function ( prop )
{
return this.map( function ( el ) {
return el[ prop ];
} );
},
pop: __arrayProto.pop,
push: __arrayProto.push,
// Does not return an API instance
reduce: __arrayProto.reduce || function ( fn, init )
{
return _fnReduce( this, fn, init, 0, this.length, 1 );
},
reduceRight: __arrayProto.reduceRight || function ( fn, init )
{
return _fnReduce( this, fn, init, this.length-1, -1, -1 );
},
reverse: __arrayProto.reverse,
// Object with rows, columns and opts
selector: null,
shift: __arrayProto.shift,
slice: function () {
return new _Api( this.context, this );
},
sort: __arrayProto.sort, // ? name - order?
splice: __arrayProto.splice,
toArray: function ()
{
return __arrayProto.slice.call( this );
},
to$: function ()
{
return $( this );
},
toJQuery: function ()
{
return $( this );
},
unique: function ()
{
return new _Api( this.context, _unique(this) );
},
unshift: __arrayProto.unshift
} );
_Api.extend = function ( scope, obj, ext )
{
// Only extend API instances and static properties of the API
if ( ! ext.length || ! obj || ( ! (obj instanceof _Api) && ! obj.__dt_wrapper ) ) {
return;
}
var
i, ien,
j, jen,
struct, inner,
methodScoping = function ( scope, fn, struc ) {
return function () {
var ret = fn.apply( scope, arguments );
// Method extension
_Api.extend( ret, ret, struc.methodExt );
return ret;
};
};
for ( i=0, ien=ext.length ; i<ien ; i++ ) {
struct = ext[i];
// Value
obj[ struct.name ] = typeof struct.val === 'function' ?
methodScoping( scope, struct.val, struct ) :
$.isPlainObject( struct.val ) ?
{} :
struct.val;
obj[ struct.name ].__dt_wrapper = true;
// Property extension
_Api.extend( scope, obj[ struct.name ], struct.propExt );
}
};
// @todo - Is there need for an augment function?
// _Api.augment = function ( inst, name )
// {
// // Find src object in the structure from the name
// var parts = name.split('.');
// _Api.extend( inst, obj );
// };
// [
// {
// name: 'data' -- string - Property name
// val: function () {}, -- function - Api method (or undefined if just an object
// methodExt: [ ... ], -- array - Array of Api object definitions to extend the method result
// propExt: [ ... ] -- array - Array of Api object definitions to extend the property
// },
// {
// name: 'row'
// val: {},
// methodExt: [ ... ],
// propExt: [
// {
// name: 'data'
// val: function () {},
// methodExt: [ ... ],
// propExt: [ ... ]
// },
// ...
// ]
// }
// ]
_Api.register = _api_register = function ( name, val )
{
if ( $.isArray( name ) ) {
for ( var j=0, jen=name.length ; j<jen ; j++ ) {
_Api.register( name[j], val );
}
return;
}
var
i, ien,
heir = name.split('.'),
struct = __apiStruct,
key, method;
var find = function ( src, name ) {
for ( var i=0, ien=src.length ; i<ien ; i++ ) {
if ( src[i].name === name ) {
return src[i];
}
}
return null;
};
for ( i=0, ien=heir.length ; i<ien ; i++ ) {
method = heir[i].indexOf('()') !== -1;
key = method ?
heir[i].replace('()', '') :
heir[i];
var src = find( struct, key );
if ( ! src ) {
src = {
name: key,
val: {},
methodExt: [],
propExt: []
};
struct.push( src );
}
if ( i === ien-1 ) {
src.val = val;
}
else {
struct = method ?
src.methodExt :
src.propExt;
}
}
};
_Api.registerPlural = _api_registerPlural = function ( pluralName, singularName, val ) {
_Api.register( pluralName, val );
_Api.register( singularName, function () {
var ret = val.apply( this, arguments );
if ( ret === this ) {
// Returned item is the API instance that was passed in, return it
return this;
}
else if ( ret instanceof _Api ) {
// New API instance returned, want the value from the first item
// in the returned array for the singular result.
return ret.length ?
$.isArray( ret[0] ) ?
new _Api( ret.context, ret[0] ) : // Array results are 'enhanced'
ret[0] :
undefined;
}
// Non-API return - just fire it back
return ret;
} );
};
/**
* Selector for HTML tables. Apply the given selector to the give array of
* DataTables settings objects.
*
* @param {string|integer} [selector] jQuery selector string or integer
* @param {array} Array of DataTables settings objects to be filtered
* @return {array}
* @ignore
*/
var __table_selector = function ( selector, a )
{
// Integer is used to pick out a table by index
if ( typeof selector === 'number' ) {
return [ a[ selector ] ];
}
// Perform a jQuery selector on the table nodes
var nodes = $.map( a, function (el, i) {
return el.nTable;
} );
return $(nodes)
.filter( selector )
.map( function (i) {
// Need to translate back from the table node to the settings
var idx = $.inArray( this, nodes );
return a[ idx ];
} )
.toArray();
};
/**
* Context selector for the API's context (i.e. the tables the API instance
* refers to.
*
* @name DataTable.Api#tables
* @param {string|integer} [selector] Selector to pick which tables the iterator
* should operate on. If not given, all tables in the current context are
* used. This can be given as a jQuery selector (for example `':gt(0)'`) to
* select multiple tables or as an integer to select a single table.
* @returns {DataTable.Api} Returns a new API instance if a selector is given.
*/
_api_register( 'tables()', function ( selector ) {
// A new instance is created if there was a selector specified
return selector ?
new _Api( __table_selector( selector, this.context ) ) :
this;
} );
_api_register( 'table()', function ( selector ) {
var tables = this.tables( selector );
var ctx = tables.context;
// Truncate to the first matched table
return ctx.length ?
new _Api( ctx[0] ) :
tables;
} );
_api_registerPlural( 'tables().nodes()', 'table().node()' , function () {
return this.iterator( 'table', function ( ctx ) {
return ctx.nTable;
}, 1 );
} );
_api_registerPlural( 'tables().body()', 'table().body()' , function () {
return this.iterator( 'table', function ( ctx ) {
return ctx.nTBody;
}, 1 );
} );
_api_registerPlural( 'tables().header()', 'table().header()' , function () {
return this.iterator( 'table', function ( ctx ) {
return ctx.nTHead;
}, 1 );
} );
_api_registerPlural( 'tables().footer()', 'table().footer()' , function () {
return this.iterator( 'table', function ( ctx ) {
return ctx.nTFoot;
}, 1 );
} );
_api_registerPlural( 'tables().containers()', 'table().container()' , function () {
return this.iterator( 'table', function ( ctx ) {
return ctx.nTableWrapper;
}, 1 );
} );
/**
* Redraw the tables in the current context.
*/
_api_register( 'draw()', function ( paging ) {
return this.iterator( 'table', function ( settings ) {
if ( paging === 'page' ) {
_fnDraw( settings );
}
else {
if ( typeof paging === 'string' ) {
paging = paging === 'full-hold' ?
false :
true;
}
_fnReDraw( settings, paging===false );
}
} );
} );
/**
* Get the current page index.
*
* @return {integer} Current page index (zero based)
*//**
* Set the current page.
*
* Note that if you attempt to show a page which does not exist, DataTables will
* not throw an error, but rather reset the paging.
*
* @param {integer|string} action The paging action to take. This can be one of:
* * `integer` - The page index to jump to
* * `string` - An action to take:
* * `first` - Jump to first page.
* * `next` - Jump to the next page
* * `previous` - Jump to previous page
* * `last` - Jump to the last page.
* @returns {DataTables.Api} this
*/
_api_register( 'page()', function ( action ) {
if ( action === undefined ) {
return this.page.info().page; // not an expensive call
}
// else, have an action to take on all tables
return this.iterator( 'table', function ( settings ) {
_fnPageChange( settings, action );
} );
} );
/**
* Paging information for the first table in the current context.
*
* If you require paging information for another table, use the `table()` method
* with a suitable selector.
*
* @return {object} Object with the following properties set:
* * `page` - Current page index (zero based - i.e. the first page is `0`)
* * `pages` - Total number of pages
* * `start` - Display index for the first record shown on the current page
* * `end` - Display index for the last record shown on the current page
* * `length` - Display length (number of records). Note that generally `start
* + length = end`, but this is not always true, for example if there are
* only 2 records to show on the final page, with a length of 10.
* * `recordsTotal` - Full data set length
* * `recordsDisplay` - Data set length once the current filtering criterion
* are applied.
*/
_api_register( 'page.info()', function ( action ) {
if ( this.context.length === 0 ) {
return undefined;
}
var
settings = this.context[0],
start = settings._iDisplayStart,
len = settings.oFeatures.bPaginate ? settings._iDisplayLength : -1,
visRecords = settings.fnRecordsDisplay(),
all = len === -1;
return {
"page": all ? 0 : Math.floor( start / len ),
"pages": all ? 1 : Math.ceil( visRecords / len ),
"start": start,
"end": settings.fnDisplayEnd(),
"length": len,
"recordsTotal": settings.fnRecordsTotal(),
"recordsDisplay": visRecords,
"serverSide": _fnDataSource( settings ) === 'ssp'
};
} );
/**
* Get the current page length.
*
* @return {integer} Current page length. Note `-1` indicates that all records
* are to be shown.
*//**
* Set the current page length.
*
* @param {integer} Page length to set. Use `-1` to show all records.
* @returns {DataTables.Api} this
*/
_api_register( 'page.len()', function ( len ) {
// Note that we can't call this function 'length()' because `length`
// is a Javascript property of functions which defines how many arguments
// the function expects.
if ( len === undefined ) {
return this.context.length !== 0 ?
this.context[0]._iDisplayLength :
undefined;
}
// else, set the page length
return this.iterator( 'table', function ( settings ) {
_fnLengthChange( settings, len );
} );
} );
var __reload = function ( settings, holdPosition, callback ) {
// Use the draw event to trigger a callback
if ( callback ) {
var api = new _Api( settings );
api.one( 'draw', function () {
callback( api.ajax.json() );
} );
}
if ( _fnDataSource( settings ) == 'ssp' ) {
_fnReDraw( settings, holdPosition );
}
else {
_fnProcessingDisplay( settings, true );
// Cancel an existing request
var xhr = settings.jqXHR;
if ( xhr && xhr.readyState !== 4 ) {
xhr.abort();
}
// Trigger xhr
_fnBuildAjax( settings, [], function( json ) {
_fnClearTable( settings );
var data = _fnAjaxDataSrc( settings, json );
for ( var i=0, ien=data.length ; i<ien ; i++ ) {
_fnAddData( settings, data[i] );
}
_fnReDraw( settings, holdPosition );
_fnProcessingDisplay( settings, false );
} );
}
};
/**
* Get the JSON response from the last Ajax request that DataTables made to the
* server. Note that this returns the JSON from the first table in the current
* context.
*
* @return {object} JSON received from the server.
*/
_api_register( 'ajax.json()', function () {
var ctx = this.context;
if ( ctx.length > 0 ) {
return ctx[0].json;
}
// else return undefined;
} );
/**
* Get the data submitted in the last Ajax request
*/
_api_register( 'ajax.params()', function () {
var ctx = this.context;
if ( ctx.length > 0 ) {
return ctx[0].oAjaxData;
}
// else return undefined;
} );
/**
* Reload tables from the Ajax data source. Note that this function will
* automatically re-draw the table when the remote data has been loaded.
*
* @param {boolean} [reset=true] Reset (default) or hold the current paging
* position. A full re-sort and re-filter is performed when this method is
* called, which is why the pagination reset is the default action.
* @returns {DataTables.Api} this
*/
_api_register( 'ajax.reload()', function ( callback, resetPaging ) {
return this.iterator( 'table', function (settings) {
__reload( settings, resetPaging===false, callback );
} );
} );
/**
* Get the current Ajax URL. Note that this returns the URL from the first
* table in the current context.
*
* @return {string} Current Ajax source URL
*//**
* Set the Ajax URL. Note that this will set the URL for all tables in the
* current context.
*
* @param {string} url URL to set.
* @returns {DataTables.Api} this
*/
_api_register( 'ajax.url()', function ( url ) {
var ctx = this.context;
if ( url === undefined ) {
// get
if ( ctx.length === 0 ) {
return undefined;
}
ctx = ctx[0];
return ctx.ajax ?
$.isPlainObject( ctx.ajax ) ?
ctx.ajax.url :
ctx.ajax :
ctx.sAjaxSource;
}
// set
return this.iterator( 'table', function ( settings ) {
if ( $.isPlainObject( settings.ajax ) ) {
settings.ajax.url = url;
}
else {
settings.ajax = url;
}
// No need to consider sAjaxSource here since DataTables gives priority
// to `ajax` over `sAjaxSource`. So setting `ajax` here, renders any
// value of `sAjaxSource` redundant.
} );
} );
/**
* Load data from the newly set Ajax URL. Note that this method is only
* available when `ajax.url()` is used to set a URL. Additionally, this method
* has the same effect as calling `ajax.reload()` but is provided for
* convenience when setting a new URL. Like `ajax.reload()` it will
* automatically redraw the table once the remote data has been loaded.
*
* @returns {DataTables.Api} this
*/
_api_register( 'ajax.url().load()', function ( callback, resetPaging ) {
// Same as a reload, but makes sense to present it for easy access after a
// url change
return this.iterator( 'table', function ( ctx ) {
__reload( ctx, resetPaging===false, callback );
} );
} );
var _selector_run = function ( type, selector, selectFn, settings, opts )
{
var
out = [], res,
a, i, ien, j, jen,
selectorType = typeof selector;
// Can't just check for isArray here, as an API or jQuery instance might be
// given with their array like look
if ( ! selector || selectorType === 'string' || selectorType === 'function' || selector.length === undefined ) {
selector = [ selector ];
}
for ( i=0, ien=selector.length ; i<ien ; i++ ) {
// Only split on simple strings - complex expressions will be jQuery selectors
a = selector[i] && selector[i].split && ! selector[i].match(/[\[\(:]/) ?
selector[i].split(',') :
[ selector[i] ];
for ( j=0, jen=a.length ; j<jen ; j++ ) {
res = selectFn( typeof a[j] === 'string' ? $.trim(a[j]) : a[j] );
if ( res && res.length ) {
out = out.concat( res );
}
}
}
// selector extensions
var ext = _ext.selector[ type ];
if ( ext.length ) {
for ( i=0, ien=ext.length ; i<ien ; i++ ) {
out = ext[i]( settings, opts, out );
}
}
return _unique( out );
};
var _selector_opts = function ( opts )
{
if ( ! opts ) {
opts = {};
}
// Backwards compatibility for 1.9- which used the terminology filter rather
// than search
if ( opts.filter && opts.search === undefined ) {
opts.search = opts.filter;
}
return $.extend( {
search: 'none',
order: 'current',
page: 'all'
}, opts );
};
var _selector_first = function ( inst )
{
// Reduce the API instance to the first item found
for ( var i=0, ien=inst.length ; i<ien ; i++ ) {
if ( inst[i].length > 0 ) {
// Assign the first element to the first item in the instance
// and truncate the instance and context
inst[0] = inst[i];
inst[0].length = 1;
inst.length = 1;
inst.context = [ inst.context[i] ];
return inst;
}
}
// Not found - return an empty instance
inst.length = 0;
return inst;
};
var _selector_row_indexes = function ( settings, opts )
{
var
i, ien, tmp, a=[],
displayFiltered = settings.aiDisplay,
displayMaster = settings.aiDisplayMaster;
var
search = opts.search, // none, applied, removed
order = opts.order, // applied, current, index (original - compatibility with 1.9)
page = opts.page; // all, current
if ( _fnDataSource( settings ) == 'ssp' ) {
// In server-side processing mode, most options are irrelevant since
// rows not shown don't exist and the index order is the applied order
// Removed is a special case - for consistency just return an empty
// array
return search === 'removed' ?
[] :
_range( 0, displayMaster.length );
}
else if ( page == 'current' ) {
// Current page implies that order=current and fitler=applied, since it is
// fairly senseless otherwise, regardless of what order and search actually
// are
for ( i=settings._iDisplayStart, ien=settings.fnDisplayEnd() ; i<ien ; i++ ) {
a.push( displayFiltered[i] );
}
}
else if ( order == 'current' || order == 'applied' ) {
if ( search == 'none') {
a = displayMaster.slice();
}
else if ( search == 'applied' ) {
a = displayFiltered.slice();
}
else if ( search == 'removed' ) {
// O(n+m) solution by creating a hash map
var displayFilteredMap = {};
for ( var i=0, ien=displayFiltered.length ; i<ien ; i++ ) {
displayFilteredMap[displayFiltered[i]] = null;
}
a = $.map( displayMaster, function (el) {
return ! displayFilteredMap.hasOwnProperty(el) ?
el :
null;
} );
}
}
else if ( order == 'index' || order == 'original' ) {
for ( i=0, ien=settings.aoData.length ; i<ien ; i++ ) {
if ( search == 'none' ) {
a.push( i );
}
else { // applied | removed
tmp = $.inArray( i, displayFiltered );
if ((tmp === -1 && search == 'removed') ||
(tmp >= 0 && search == 'applied') )
{
a.push( i );
}
}
}
}
return a;
};
/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
* Rows
*
* {} - no selector - use all available rows
* {integer} - row aoData index
* {node} - TR node
* {string} - jQuery selector to apply to the TR elements
* {array} - jQuery array of nodes, or simply an array of TR nodes
*
*/
var __row_selector = function ( settings, selector, opts )
{
var rows;
var run = function ( sel ) {
var selInt = _intVal( sel );
var i, ien;
var aoData = settings.aoData;
// Short cut - selector is a number and no options provided (default is
// all records, so no need to check if the index is in there, since it
// must be - dev error if the index doesn't exist).
if ( selInt !== null && ! opts ) {
return [ selInt ];
}
if ( ! rows ) {
rows = _selector_row_indexes( settings, opts );
}
if ( selInt !== null && $.inArray( selInt, rows ) !== -1 ) {
// Selector - integer
return [ selInt ];
}
else if ( sel === null || sel === undefined || sel === '' ) {
// Selector - none
return rows;
}
// Selector - function
if ( typeof sel === 'function' ) {
return $.map( rows, function (idx) {
var row = aoData[ idx ];
return sel( idx, row._aData, row.nTr ) ? idx : null;
} );
}
// Selector - node
if ( sel.nodeName ) {
var rowIdx = sel._DT_RowIndex; // Property added by DT for fast lookup
var cellIdx = sel._DT_CellIndex;
if ( rowIdx !== undefined ) {
// Make sure that the row is actually still present in the table
return aoData[ rowIdx ] && aoData[ rowIdx ].nTr === sel ?
[ rowIdx ] :
[];
}
else if ( cellIdx ) {
return aoData[ cellIdx.row ] && aoData[ cellIdx.row ].nTr === sel ?
[ cellIdx.row ] :
[];
}
else {
var host = $(sel).closest('*[data-dt-row]');
return host.length ?
[ host.data('dt-row') ] :
[];
}
}
// ID selector. Want to always be able to select rows by id, regardless
// of if the tr element has been created or not, so can't rely upon
// jQuery here - hence a custom implementation. This does not match
// Sizzle's fast selector or HTML4 - in HTML5 the ID can be anything,
// but to select it using a CSS selector engine (like Sizzle or
// querySelect) it would need to need to be escaped for some characters.
// DataTables simplifies this for row selectors since you can select
// only a row. A # indicates an id any anything that follows is the id -
// unescaped.
if ( typeof sel === 'string' && sel.charAt(0) === '#' ) {
// get row index from id
var rowObj = settings.aIds[ sel.replace( /^#/, '' ) ];
if ( rowObj !== undefined ) {
return [ rowObj.idx ];
}
// need to fall through to jQuery in case there is DOM id that
// matches
}
// Get nodes in the order from the `rows` array with null values removed
var nodes = _removeEmpty(
_pluck_order( settings.aoData, rows, 'nTr' )
);
// Selector - jQuery selector string, array of nodes or jQuery object/
// As jQuery's .filter() allows jQuery objects to be passed in filter,
// it also allows arrays, so this will cope with all three options
return $(nodes)
.filter( sel )
.map( function () {
return this._DT_RowIndex;
} )
.toArray();
};
return _selector_run( 'row', selector, run, settings, opts );
};
_api_register( 'rows()', function ( selector, opts ) {
// argument shifting
if ( selector === undefined ) {
selector = '';
}
else if ( $.isPlainObject( selector ) ) {
opts = selector;
selector = '';
}
opts = _selector_opts( opts );
var inst = this.iterator( 'table', function ( settings ) {
return __row_selector( settings, selector, opts );
}, 1 );
// Want argument shifting here and in __row_selector?
inst.selector.rows = selector;
inst.selector.opts = opts;
return inst;
} );
_api_register( 'rows().nodes()', function () {
return this.iterator( 'row', function ( settings, row ) {
return settings.aoData[ row ].nTr || undefined;
}, 1 );
} );
_api_register( 'rows().data()', function () {
return this.iterator( true, 'rows', function ( settings, rows ) {
return _pluck_order( settings.aoData, rows, '_aData' );
}, 1 );
} );
_api_registerPlural( 'rows().cache()', 'row().cache()', function ( type ) {
return this.iterator( 'row', function ( settings, row ) {
var r = settings.aoData[ row ];
return type === 'search' ? r._aFilterData : r._aSortData;
}, 1 );
} );
_api_registerPlural( 'rows().invalidate()', 'row().invalidate()', function ( src ) {
return this.iterator( 'row', function ( settings, row ) {
_fnInvalidate( settings, row, src );
} );
} );
_api_registerPlural( 'rows().indexes()', 'row().index()', function () {
return this.iterator( 'row', function ( settings, row ) {
return row;
}, 1 );
} );
_api_registerPlural( 'rows().ids()', 'row().id()', function ( hash ) {
var a = [];
var context = this.context;
// `iterator` will drop undefined values, but in this case we want them
for ( var i=0, ien=context.length ; i<ien ; i++ ) {
for ( var j=0, jen=this[i].length ; j<jen ; j++ ) {
var id = context[i].rowIdFn( context[i].aoData[ this[i][j] ]._aData );
a.push( (hash === true ? '#' : '' )+ id );
}
}
return new _Api( context, a );
} );
_api_registerPlural( 'rows().remove()', 'row().remove()', function () {
var that = this;
this.iterator( 'row', function ( settings, row, thatIdx ) {
var data = settings.aoData;
var rowData = data[ row ];
var i, ien, j, jen;
var loopRow, loopCells;
data.splice( row, 1 );
// Update the cached indexes
for ( i=0, ien=data.length ; i<ien ; i++ ) {
loopRow = data[i];
loopCells = loopRow.anCells;
// Rows
if ( loopRow.nTr !== null ) {
loopRow.nTr._DT_RowIndex = i;
}
// Cells
if ( loopCells !== null ) {
for ( j=0, jen=loopCells.length ; j<jen ; j++ ) {
loopCells[j]._DT_CellIndex.row = i;
}
}
}
// Delete from the display arrays
_fnDeleteIndex( settings.aiDisplayMaster, row );
_fnDeleteIndex( settings.aiDisplay, row );
_fnDeleteIndex( that[ thatIdx ], row, false ); // maintain local indexes
// For server-side processing tables - subtract the deleted row from the count
if ( settings._iRecordsDisplay > 0 ) {
settings._iRecordsDisplay--;
}
// Check for an 'overflow' they case for displaying the table
_fnLengthOverflow( settings );
// Remove the row's ID reference if there is one
var id = settings.rowIdFn( rowData._aData );
if ( id !== undefined ) {
delete settings.aIds[ id ];
}
} );
this.iterator( 'table', function ( settings ) {
for ( var i=0, ien=settings.aoData.length ; i<ien ; i++ ) {
settings.aoData[i].idx = i;
}
} );
return this;
} );
_api_register( 'rows.add()', function ( rows ) {
var newRows = this.iterator( 'table', function ( settings ) {
var row, i, ien;
var out = [];
for ( i=0, ien=rows.length ; i<ien ; i++ ) {
row = rows[i];
if ( row.nodeName && row.nodeName.toUpperCase() === 'TR' ) {
out.push( _fnAddTr( settings, row )[0] );
}
else {
out.push( _fnAddData( settings, row ) );
}
}
return out;
}, 1 );
// Return an Api.rows() extended instance, so rows().nodes() etc can be used
var modRows = this.rows( -1 );
modRows.pop();
$.merge( modRows, newRows );
return modRows;
} );
/**
*
*/
_api_register( 'row()', function ( selector, opts ) {
return _selector_first( this.rows( selector, opts ) );
} );
_api_register( 'row().data()', function ( data ) {
var ctx = this.context;
if ( data === undefined ) {
// Get
return ctx.length && this.length ?
ctx[0].aoData[ this[0] ]._aData :
undefined;
}
// Set
var row = ctx[0].aoData[ this[0] ];
row._aData = data;
// If the DOM has an id, and the data source is an array
if ( $.isArray( data ) && row.nTr.id ) {
_fnSetObjectDataFn( ctx[0].rowId )( data, row.nTr.id );
}
// Automatically invalidate
_fnInvalidate( ctx[0], this[0], 'data' );
return this;
} );
_api_register( 'row().node()', function () {