bump version to 12.2.2-pve1

[ceph.git] / ceph / src / pybind / mgr / dashboard / static / AdminLTE-2.3.7 / plugins / datatables / extensions / FixedHeader / js / dataTables.fixedHeader.js

/*! FixedHeader 2.1.2
 * ©2010-2014 SpryMedia Ltd - datatables.net/license
 */

/**
 * @summary     FixedHeader
 * @description Fix a table's header or footer, so it is always visible while
 *              Scrolling
 * @version     2.1.2
 * @file        dataTables.fixedHeader.js
 * @author      SpryMedia Ltd (www.sprymedia.co.uk)
 * @contact     www.sprymedia.co.uk/contact
 * @copyright   Copyright 2009-2014 SpryMedia Ltd.
 *
 * This source file is free software, available under the following license:
 *   MIT license - http://datatables.net/license/mit
 *
 * 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
 */

/* Global scope for FixedColumns for backwards compatibility - will be removed
 * in future. Not documented in 1.1.x.
 */

/* Global scope for FixedColumns */
var FixedHeader;

(function(window, document, undefined) {


var factory = function( $, DataTable ) {
"use strict";

/*
 * Function: FixedHeader
 * Purpose:  Provide 'fixed' header, footer and columns for a DataTable
 * Returns:  object:FixedHeader - must be called with 'new'
 * Inputs:   mixed:mTable - target table
 *  @param {object} dt DataTables instance or HTML table node. With DataTables
 *    1.10 this can also be a jQuery collection (with just a single table in its
 *    result set), a jQuery selector, DataTables API instance or settings
 *    object.
 *  @param {object} [oInit] initialisation settings, with the following
 *    properties (each optional)
 *    * bool:top -    fix the header (default true)
 *    * bool:bottom - fix the footer (default false)
 *    * int:left -    fix the left column(s) (default 0)
 *    * int:right -   fix the right column(s) (default 0)
 *    * int:zTop -    fixed header zIndex
 *    * int:zBottom - fixed footer zIndex
 *    * int:zLeft -   fixed left zIndex
 *    * int:zRight -  fixed right zIndex
 */
FixedHeader = function ( mTable, oInit ) {
        /* Sanity check - you just know it will happen */
        if ( ! this instanceof FixedHeader )
        {
                alert( "FixedHeader warning: FixedHeader must be initialised with the 'new' keyword." );
                return;
        }

        var that = this;
        var oSettings = {
                "aoCache": [],
                "oSides": {
                        "top": true,
                        "bottom": false,
                        "left": 0,
                        "right": 0
                },
                "oZIndexes": {
                        "top": 104,
                        "bottom": 103,
                        "left": 102,
                        "right": 101
                },
                "oCloneOnDraw": {
                        "top": false,
                        "bottom": false,
                        "left": true,
                        "right": true
                },
                "oMes": {
                        "iTableWidth": 0,
                        "iTableHeight": 0,
                        "iTableLeft": 0,
                        "iTableRight": 0, /* note this is left+width, not actually "right" */
                        "iTableTop": 0,
                        "iTableBottom": 0 /* note this is top+height, not actually "bottom" */
                },
                "oOffset": {
                        "top": 0
                },
                "nTable": null,
                "bFooter": false,
                "bInitComplete": false
        };

        /*
         * Function: fnGetSettings
         * Purpose:  Get the settings for this object
         * Returns:  object: - settings object
         * Inputs:   -
         */
        this.fnGetSettings = function () {
                return oSettings;
        };

        /*
         * Function: fnUpdate
         * Purpose:  Update the positioning and copies of the fixed elements
         * Returns:  -
         * Inputs:   -
         */
        this.fnUpdate = function () {
                this._fnUpdateClones();
                this._fnUpdatePositions();
        };

        /*
         * Function: fnPosition
         * Purpose:  Update the positioning of the fixed elements
         * Returns:  -
         * Inputs:   -
         */
        this.fnPosition = function () {
                this._fnUpdatePositions();
        };


        var dt = $.fn.dataTable.Api ?
                new $.fn.dataTable.Api( mTable ).settings()[0] :
                mTable.fnSettings();

        dt._oPluginFixedHeader = this;

        /* Let's do it */
        this.fnInit( dt, oInit );

};


/*
 * Variable: FixedHeader
 * Purpose:  Prototype for FixedHeader
 * Scope:    global
 */
FixedHeader.prototype = {
        /* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
         * Initialisation
         */

        /*
         * Function: fnInit
         * Purpose:  The "constructor"
         * Returns:  -
         * Inputs:   {as FixedHeader function}
         */
        fnInit: function ( oDtSettings, oInit )
        {
                var s = this.fnGetSettings();
                var that = this;

                /* Record the user definable settings */
                this.fnInitSettings( s, oInit );

                if ( oDtSettings.oScroll.sX !== "" || oDtSettings.oScroll.sY !== "" )
                {
                        alert( "FixedHeader 2 is not supported with DataTables' scrolling mode at this time" );
                        return;
                }

                s.nTable = oDtSettings.nTable;
                oDtSettings.aoDrawCallback.unshift( {
                        "fn": function () {
                                FixedHeader.fnMeasure();
                                that._fnUpdateClones.call(that);
                                that._fnUpdatePositions.call(that);
                        },
                        "sName": "FixedHeader"
                } );

                s.bFooter = ($('>tfoot', s.nTable).length > 0) ? true : false;

                /* Add the 'sides' that are fixed */
                if ( s.oSides.top )
                {
                        s.aoCache.push( that._fnCloneTable( "fixedHeader", "FixedHeader_Header", that._fnCloneThead ) );
                }
                if ( s.oSides.bottom )
                {
                        s.aoCache.push( that._fnCloneTable( "fixedFooter", "FixedHeader_Footer", that._fnCloneTfoot ) );
                }
                if ( s.oSides.left )
                {
                        s.aoCache.push( that._fnCloneTable( "fixedLeft", "FixedHeader_Left", that._fnCloneTLeft, s.oSides.left ) );
                }
                if ( s.oSides.right )
                {
                        s.aoCache.push( that._fnCloneTable( "fixedRight", "FixedHeader_Right", that._fnCloneTRight, s.oSides.right ) );
                }

                /* Event listeners for window movement */
                FixedHeader.afnScroll.push( function () {
                        that._fnUpdatePositions.call(that);
                } );

                $(window).resize( function () {
                        FixedHeader.fnMeasure();
                        that._fnUpdateClones.call(that);
                        that._fnUpdatePositions.call(that);
                } );

                $(s.nTable)
                        .on('column-reorder.dt', function () {
                                FixedHeader.fnMeasure();
                                that._fnUpdateClones( true );
                                that._fnUpdatePositions();
                        } )
                        .on('column-visibility.dt', function () {
                                FixedHeader.fnMeasure();
                                that._fnUpdateClones( true );
                                that._fnUpdatePositions();
                        } );

                /* Get things right to start with */
                FixedHeader.fnMeasure();
                that._fnUpdateClones();
                that._fnUpdatePositions();

                s.bInitComplete = true;
        },


        /* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
         * Support functions
         */

        /*
         * Function: fnInitSettings
         * Purpose:  Take the user's settings and copy them to our local store
         * Returns:  -
         * Inputs:   object:s - the local settings object
         *           object:oInit - the user's settings object
         */
        fnInitSettings: function ( s, oInit )
        {
                if ( oInit !== undefined )
                {
                        if ( oInit.top !== undefined ) {
                                s.oSides.top = oInit.top;
                        }
                        if ( oInit.bottom !== undefined ) {
                                s.oSides.bottom = oInit.bottom;
                        }
                        if ( typeof oInit.left == 'boolean' ) {
                                s.oSides.left = oInit.left ? 1 : 0;
                        }
                        else if ( oInit.left !== undefined ) {
                                s.oSides.left = oInit.left;
                        }
                        if ( typeof oInit.right == 'boolean' ) {
                                s.oSides.right = oInit.right ? 1 : 0;
                        }
                        else if ( oInit.right !== undefined ) {
                                s.oSides.right = oInit.right;
                        }

                        if ( oInit.zTop !== undefined ) {
                                s.oZIndexes.top = oInit.zTop;
                        }
                        if ( oInit.zBottom !== undefined ) {
                                s.oZIndexes.bottom = oInit.zBottom;
                        }
                        if ( oInit.zLeft !== undefined ) {
                                s.oZIndexes.left = oInit.zLeft;
                        }
                        if ( oInit.zRight !== undefined ) {
                                s.oZIndexes.right = oInit.zRight;
                        }

                        if ( oInit.offsetTop !== undefined ) {
                                s.oOffset.top = oInit.offsetTop;
                        }
                        if ( oInit.alwaysCloneTop !== undefined ) {
                                s.oCloneOnDraw.top = oInit.alwaysCloneTop;
                        }
                        if ( oInit.alwaysCloneBottom !== undefined ) {
                                s.oCloneOnDraw.bottom = oInit.alwaysCloneBottom;
                        }
                        if ( oInit.alwaysCloneLeft !== undefined ) {
                                s.oCloneOnDraw.left = oInit.alwaysCloneLeft;
                        }
                        if ( oInit.alwaysCloneRight !== undefined ) {
                                s.oCloneOnDraw.right = oInit.alwaysCloneRight;
                        }
                }
        },

        /*
         * Function: _fnCloneTable
         * Purpose:  Clone the table node and do basic initialisation
         * Returns:  -
         * Inputs:   -
         */
        _fnCloneTable: function ( sType, sClass, fnClone, iCells )
        {
                var s = this.fnGetSettings();
                var nCTable;

                /* We know that the table _MUST_ has a DIV wrapped around it, because this is simply how
                 * DataTables works. Therefore, we can set this to be relatively position (if it is not
                 * alreadu absolute, and use this as the base point for the cloned header
                 */
                if ( $(s.nTable.parentNode).css('position') != "absolute" )
                {
                        s.nTable.parentNode.style.position = "relative";
                }

                /* Just a shallow clone will do - we only want the table node */
                nCTable = s.nTable.cloneNode( false );
                nCTable.removeAttribute( 'id' );

                var nDiv = document.createElement( 'div' );
                nDiv.style.position = "absolute";
                nDiv.style.top = "0px";
                nDiv.style.left = "0px";
                nDiv.className += " FixedHeader_Cloned "+sType+" "+sClass;

                /* Set the zIndexes */
                if ( sType == "fixedHeader" )
                {
                        nDiv.style.zIndex = s.oZIndexes.top;
                }
                if ( sType == "fixedFooter" )
                {
                        nDiv.style.zIndex = s.oZIndexes.bottom;
                }
                if ( sType == "fixedLeft" )
                {
                        nDiv.style.zIndex = s.oZIndexes.left;
                }
                else if ( sType == "fixedRight" )
                {
                        nDiv.style.zIndex = s.oZIndexes.right;
                }

                /* remove margins since we are going to position it absolutely */
                nCTable.style.margin = "0";

                /* Insert the newly cloned table into the DOM, on top of the "real" header */
                nDiv.appendChild( nCTable );
                document.body.appendChild( nDiv );

                return {
                        "nNode": nCTable,
                        "nWrapper": nDiv,
                        "sType": sType,
                        "sPosition": "",
                        "sTop": "",
                        "sLeft": "",
                        "fnClone": fnClone,
                        "iCells": iCells
                };
        },

        /*
         * Function: _fnMeasure
         * Purpose:  Get the current positioning of the table in the DOM
         * Returns:  -
         * Inputs:   -
         */
        _fnMeasure: function ()
        {
                var
                        s = this.fnGetSettings(),
                        m = s.oMes,
                        jqTable = $(s.nTable),
                        oOffset = jqTable.offset(),
                        iParentScrollTop = this._fnSumScroll( s.nTable.parentNode, 'scrollTop' ),
                        iParentScrollLeft = this._fnSumScroll( s.nTable.parentNode, 'scrollLeft' );

                m.iTableWidth = jqTable.outerWidth();
                m.iTableHeight = jqTable.outerHeight();
                m.iTableLeft = oOffset.left + s.nTable.parentNode.scrollLeft;
                m.iTableTop = oOffset.top + iParentScrollTop;
                m.iTableRight = m.iTableLeft + m.iTableWidth;
                m.iTableRight = FixedHeader.oDoc.iWidth - m.iTableLeft - m.iTableWidth;
                m.iTableBottom = FixedHeader.oDoc.iHeight - m.iTableTop - m.iTableHeight;
        },

        /*
         * Function: _fnSumScroll
         * Purpose:  Sum node parameters all the way to the top
         * Returns:  int: sum
         * Inputs:   node:n - node to consider
         *           string:side - scrollTop or scrollLeft
         */
        _fnSumScroll: function ( n, side )
        {
                var i = n[side];
                while ( n = n.parentNode )
                {
                        if ( n.nodeName == 'HTML' || n.nodeName == 'BODY' )
                        {
                                break;
                        }
                        i = n[side];
                }
                return i;
        },

        /*
         * Function: _fnUpdatePositions
         * Purpose:  Loop over the fixed elements for this table and update their positions
         * Returns:  -
         * Inputs:   -
         */
        _fnUpdatePositions: function ()
        {
                var s = this.fnGetSettings();
                this._fnMeasure();

                for ( var i=0, iLen=s.aoCache.length ; i<iLen ; i++ )
                {
                        if ( s.aoCache[i].sType == "fixedHeader" )
                        {
                                this._fnScrollFixedHeader( s.aoCache[i] );
                        }
                        else if ( s.aoCache[i].sType == "fixedFooter" )
                        {
                                this._fnScrollFixedFooter( s.aoCache[i] );
                        }
                        else if ( s.aoCache[i].sType == "fixedLeft" )
                        {
                                this._fnScrollHorizontalLeft( s.aoCache[i] );
                        }
                        else
                        {
                                this._fnScrollHorizontalRight( s.aoCache[i] );
                        }
                }
        },

        /*
         * Function: _fnUpdateClones
         * Purpose:  Loop over the fixed elements for this table and call their cloning functions
         * Returns:  -
         * Inputs:   -
         */
        _fnUpdateClones: function ( full )
        {
                var s = this.fnGetSettings();

                if ( full ) {
                        // This is a little bit of a hack to force a full clone draw. When
                        // `full` is set to true, we want to reclone the source elements,
                        // regardless of the clone-on-draw settings
                        s.bInitComplete = false;
                }

                for ( var i=0, iLen=s.aoCache.length ; i<iLen ; i++ )
                {
                        s.aoCache[i].fnClone.call( this, s.aoCache[i] );
                }

                if ( full ) {
                        s.bInitComplete = true;
                }
        },


        /* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
         * Scrolling functions
         */

        /*
         * Function: _fnScrollHorizontalLeft
         * Purpose:  Update the positioning of the scrolling elements
         * Returns:  -
         * Inputs:   object:oCache - the cached values for this fixed element
         */
        _fnScrollHorizontalRight: function ( oCache )
        {
                var
                        s = this.fnGetSettings(),
                        oMes = s.oMes,
                        oWin = FixedHeader.oWin,
                        oDoc = FixedHeader.oDoc,
                        nTable = oCache.nWrapper,
                        iFixedWidth = $(nTable).outerWidth();

                if ( oWin.iScrollRight < oMes.iTableRight )
                {
                        /* Fully right aligned */
                        this._fnUpdateCache( oCache, 'sPosition', 'absolute', 'position', nTable.style );
                        this._fnUpdateCache( oCache, 'sTop', oMes.iTableTop+"px", 'top', nTable.style );
                        this._fnUpdateCache( oCache, 'sLeft', (oMes.iTableLeft+oMes.iTableWidth-iFixedWidth)+"px", 'left', nTable.style );
                }
                else if ( oMes.iTableLeft < oDoc.iWidth-oWin.iScrollRight-iFixedWidth )
                {
                        /* Middle */
                        this._fnUpdateCache( oCache, 'sPosition', 'fixed', 'position', nTable.style );
                        this._fnUpdateCache( oCache, 'sTop', (oMes.iTableTop-oWin.iScrollTop)+"px", 'top', nTable.style );
                        this._fnUpdateCache( oCache, 'sLeft', (oWin.iWidth-iFixedWidth)+"px", 'left', nTable.style );
                }
                else
                {
                        /* Fully left aligned */
                        this._fnUpdateCache( oCache, 'sPosition', 'absolute', 'position', nTable.style );
                        this._fnUpdateCache( oCache, 'sTop', oMes.iTableTop+"px", 'top', nTable.style );
                        this._fnUpdateCache( oCache, 'sLeft', oMes.iTableLeft+"px", 'left', nTable.style );
                }
        },

        /*
         * Function: _fnScrollHorizontalLeft
         * Purpose:  Update the positioning of the scrolling elements
         * Returns:  -
         * Inputs:   object:oCache - the cached values for this fixed element
         */
        _fnScrollHorizontalLeft: function ( oCache )
        {
                var
                        s = this.fnGetSettings(),
                        oMes = s.oMes,
                        oWin = FixedHeader.oWin,
                        oDoc = FixedHeader.oDoc,
                        nTable = oCache.nWrapper,
                        iCellWidth = $(nTable).outerWidth();

                if ( oWin.iScrollLeft < oMes.iTableLeft )
                {
                        /* Fully left align */
                        this._fnUpdateCache( oCache, 'sPosition', 'absolute', 'position', nTable.style );
                        this._fnUpdateCache( oCache, 'sTop', oMes.iTableTop+"px", 'top', nTable.style );
                        this._fnUpdateCache( oCache, 'sLeft', oMes.iTableLeft+"px", 'left', nTable.style );
                }
                else if ( oWin.iScrollLeft < oMes.iTableLeft+oMes.iTableWidth-iCellWidth )
                {
                        this._fnUpdateCache( oCache, 'sPosition', 'fixed', 'position', nTable.style );
                        this._fnUpdateCache( oCache, 'sTop', (oMes.iTableTop-oWin.iScrollTop)+"px", 'top', nTable.style );
                        this._fnUpdateCache( oCache, 'sLeft', "0px", 'left', nTable.style );
                }
                else
                {
                        /* Fully right align */
                        this._fnUpdateCache( oCache, 'sPosition', 'absolute', 'position', nTable.style );
                        this._fnUpdateCache( oCache, 'sTop', oMes.iTableTop+"px", 'top', nTable.style );
                        this._fnUpdateCache( oCache, 'sLeft', (oMes.iTableLeft+oMes.iTableWidth-iCellWidth)+"px", 'left', nTable.style );
                }
        },

        /*
         * Function: _fnScrollFixedFooter
         * Purpose:  Update the positioning of the scrolling elements
         * Returns:  -
         * Inputs:   object:oCache - the cached values for this fixed element
         */
        _fnScrollFixedFooter: function ( oCache )
        {
                var
                        s = this.fnGetSettings(),
                        oMes = s.oMes,
                        oWin = FixedHeader.oWin,
                        oDoc = FixedHeader.oDoc,
                        nTable = oCache.nWrapper,
                        iTheadHeight = $("thead", s.nTable).outerHeight(),
                        iCellHeight = $(nTable).outerHeight();

                if ( oWin.iScrollBottom < oMes.iTableBottom )
                {
                        /* Below */
                        this._fnUpdateCache( oCache, 'sPosition', 'absolute', 'position', nTable.style );
                        this._fnUpdateCache( oCache, 'sTop', (oMes.iTableTop+oMes.iTableHeight-iCellHeight)+"px", 'top', nTable.style );
                        this._fnUpdateCache( oCache, 'sLeft', oMes.iTableLeft+"px", 'left', nTable.style );
                }
                else if ( oWin.iScrollBottom < oMes.iTableBottom+oMes.iTableHeight-iCellHeight-iTheadHeight )
                {
                        this._fnUpdateCache( oCache, 'sPosition', 'fixed', 'position', nTable.style );
                        this._fnUpdateCache( oCache, 'sTop', (oWin.iHeight-iCellHeight)+"px", 'top', nTable.style );
                        this._fnUpdateCache( oCache, 'sLeft', (oMes.iTableLeft-oWin.iScrollLeft)+"px", 'left', nTable.style );
                }
                else
                {
                        /* Above */
                        this._fnUpdateCache( oCache, 'sPosition', 'absolute', 'position', nTable.style );
                        this._fnUpdateCache( oCache, 'sTop', (oMes.iTableTop+iCellHeight)+"px", 'top', nTable.style );
                        this._fnUpdateCache( oCache, 'sLeft', oMes.iTableLeft+"px", 'left', nTable.style );
                }
        },

        /*
         * Function: _fnScrollFixedHeader
         * Purpose:  Update the positioning of the scrolling elements
         * Returns:  -
         * Inputs:   object:oCache - the cached values for this fixed element
         */
        _fnScrollFixedHeader: function ( oCache )
        {
                var
                        s = this.fnGetSettings(),
                        oMes = s.oMes,
                        oWin = FixedHeader.oWin,
                        oDoc = FixedHeader.oDoc,
                        nTable = oCache.nWrapper,
                        iTbodyHeight = 0,
                        anTbodies = s.nTable.getElementsByTagName('tbody');

                for (var i = 0; i < anTbodies.length; ++i) {
                        iTbodyHeight += anTbodies[i].offsetHeight;
                }

                if ( oMes.iTableTop > oWin.iScrollTop + s.oOffset.top )
                {
                        /* Above the table */
                        this._fnUpdateCache( oCache, 'sPosition', "absolute", 'position', nTable.style );
                        this._fnUpdateCache( oCache, 'sTop', oMes.iTableTop+"px", 'top', nTable.style );
                        this._fnUpdateCache( oCache, 'sLeft', oMes.iTableLeft+"px", 'left', nTable.style );
                }
                else if ( oWin.iScrollTop + s.oOffset.top > oMes.iTableTop+iTbodyHeight )
                {
                        /* At the bottom of the table */
                        this._fnUpdateCache( oCache, 'sPosition', "absolute", 'position', nTable.style );
                        this._fnUpdateCache( oCache, 'sTop', (oMes.iTableTop+iTbodyHeight)+"px", 'top', nTable.style );
                        this._fnUpdateCache( oCache, 'sLeft', oMes.iTableLeft+"px", 'left', nTable.style );
                }
                else
                {
                        /* In the middle of the table */
                        this._fnUpdateCache( oCache, 'sPosition', 'fixed', 'position', nTable.style );
                        this._fnUpdateCache( oCache, 'sTop', s.oOffset.top+"px", 'top', nTable.style );
                        this._fnUpdateCache( oCache, 'sLeft', (oMes.iTableLeft-oWin.iScrollLeft)+"px", 'left', nTable.style );
                }
        },

        /*
         * Function: _fnUpdateCache
         * Purpose:  Check the cache and update cache and value if needed
         * Returns:  -
         * Inputs:   object:oCache - local cache object
         *           string:sCache - cache property
         *           string:sSet - value to set
         *           string:sProperty - object property to set
         *           object:oObj - object to update
         */
        _fnUpdateCache: function ( oCache, sCache, sSet, sProperty, oObj )
        {
                if ( oCache[sCache] != sSet )
                {
                        oObj[sProperty] = sSet;
                        oCache[sCache] = sSet;
                }
        },



        /**
         * Copy the classes of all child nodes from one element to another. This implies
         * that the two have identical structure - no error checking is performed to that
         * fact.
         *  @param {element} source Node to copy classes from
         *  @param {element} dest Node to copy classes too
         */
        _fnClassUpdate: function ( source, dest )
        {
                var that = this;

                if ( source.nodeName.toUpperCase() === "TR" || source.nodeName.toUpperCase() === "TH" ||
                         source.nodeName.toUpperCase() === "TD" || source.nodeName.toUpperCase() === "SPAN" )
                {
                        dest.className = source.className;
                }

                $(source).children().each( function (i) {
                        that._fnClassUpdate( $(source).children()[i], $(dest).children()[i] );
                } );
        },


        /* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
         * Cloning functions
         */

        /*
         * Function: _fnCloneThead
         * Purpose:  Clone the thead element
         * Returns:  -
         * Inputs:   object:oCache - the cached values for this fixed element
         */
        _fnCloneThead: function ( oCache )
        {
                var s = this.fnGetSettings();
                var nTable = oCache.nNode;

                if ( s.bInitComplete && !s.oCloneOnDraw.top )
                {
                        this._fnClassUpdate( $('thead', s.nTable)[0], $('thead', nTable)[0] );
                        return;
                }

                /* Set the wrapper width to match that of the cloned table */
                var iDtWidth = $(s.nTable).outerWidth();
                oCache.nWrapper.style.width = iDtWidth+"px";
                nTable.style.width = iDtWidth+"px";

                /* Remove any children the cloned table has */
                while ( nTable.childNodes.length > 0 )
                {
                        $('thead th', nTable).unbind( 'click' );
                        nTable.removeChild( nTable.childNodes[0] );
                }

                /* Clone the DataTables header */
                var nThead = $('thead', s.nTable).clone(true)[0];
                nTable.appendChild( nThead );

                /* Copy the widths across - apparently a clone isn't good enough for this */
                var a = [];
                var b = [];

                $("thead>tr th", s.nTable).each( function (i) {
                        a.push( $(this).width() );
                } );

                $("thead>tr td", s.nTable).each( function (i) {
                        b.push( $(this).width() );
                } );

                $("thead>tr th", s.nTable).each( function (i) {
                        $("thead>tr th:eq("+i+")", nTable).width( a[i] );
                        $(this).width( a[i] );
                } );

                $("thead>tr td", s.nTable).each( function (i) {
                        $("thead>tr td:eq("+i+")", nTable).width( b[i] );
                        $(this).width( b[i] );
                } );

                // Stop DataTables 1.9 from putting a focus ring on the headers when
                // clicked to sort
                $('th.sorting, th.sorting_desc, th.sorting_asc', nTable).bind( 'click', function () {
                        this.blur();
                } );
        },

        /*
         * Function: _fnCloneTfoot
         * Purpose:  Clone the tfoot element
         * Returns:  -
         * Inputs:   object:oCache - the cached values for this fixed element
         */
        _fnCloneTfoot: function ( oCache )
        {
                var s = this.fnGetSettings();
                var nTable = oCache.nNode;

                /* Set the wrapper width to match that of the cloned table */
                oCache.nWrapper.style.width = $(s.nTable).outerWidth()+"px";

                /* Remove any children the cloned table has */
                while ( nTable.childNodes.length > 0 )
                {
                        nTable.removeChild( nTable.childNodes[0] );
                }

                /* Clone the DataTables footer */
                var nTfoot = $('tfoot', s.nTable).clone(true)[0];
                nTable.appendChild( nTfoot );

                /* Copy the widths across - apparently a clone isn't good enough for this */
                $("tfoot:eq(0)>tr th", s.nTable).each( function (i) {
                        $("tfoot:eq(0)>tr th:eq("+i+")", nTable).width( $(this).width() );
                } );

                $("tfoot:eq(0)>tr td", s.nTable).each( function (i) {
                        $("tfoot:eq(0)>tr td:eq("+i+")", nTable).width( $(this).width() );
                } );
        },

        /*
         * Function: _fnCloneTLeft
         * Purpose:  Clone the left column(s)
         * Returns:  -
         * Inputs:   object:oCache - the cached values for this fixed element
         */
        _fnCloneTLeft: function ( oCache )
        {
                var s = this.fnGetSettings();
                var nTable = oCache.nNode;
                var nBody = $('tbody', s.nTable)[0];

                /* Remove any children the cloned table has */
                while ( nTable.childNodes.length > 0 )
                {
                        nTable.removeChild( nTable.childNodes[0] );
                }

                /* Is this the most efficient way to do this - it looks horrible... */
                nTable.appendChild( $("thead", s.nTable).clone(true)[0] );
                nTable.appendChild( $("tbody", s.nTable).clone(true)[0] );
                if ( s.bFooter )
                {
                        nTable.appendChild( $("tfoot", s.nTable).clone(true)[0] );
                }

                /* Remove unneeded cells */
                var sSelector = 'gt(' + (oCache.iCells - 1) + ')';
                $('thead tr', nTable).each( function (k) {
                        $('th:' + sSelector, this).remove();
                } );

                $('tfoot tr', nTable).each( function (k) {
                        $('th:' + sSelector, this).remove();
                } );

                $('tbody tr', nTable).each( function (k) {
                        $('td:' + sSelector, this).remove();
                } );

                this.fnEqualiseHeights( 'thead', nBody.parentNode, nTable );
                this.fnEqualiseHeights( 'tbody', nBody.parentNode, nTable );
                this.fnEqualiseHeights( 'tfoot', nBody.parentNode, nTable );

                var iWidth = 0;
                for (var i = 0; i < oCache.iCells; i++) {
                        iWidth += $('thead tr th:eq(' + i + ')', s.nTable).outerWidth();
                }
                nTable.style.width = iWidth+"px";
                oCache.nWrapper.style.width = iWidth+"px";
        },

        /*
         * Function: _fnCloneTRight
         * Purpose:  Clone the right most column(s)
         * Returns:  -
         * Inputs:   object:oCache - the cached values for this fixed element
         */
        _fnCloneTRight: function ( oCache )
        {
                var s = this.fnGetSettings();
                var nBody = $('tbody', s.nTable)[0];
                var nTable = oCache.nNode;
                var iCols = $('tbody tr:eq(0) td', s.nTable).length;

                /* Remove any children the cloned table has */
                while ( nTable.childNodes.length > 0 )
                {
                        nTable.removeChild( nTable.childNodes[0] );
                }

                /* Is this the most efficient way to do this - it looks horrible... */
                nTable.appendChild( $("thead", s.nTable).clone(true)[0] );
                nTable.appendChild( $("tbody", s.nTable).clone(true)[0] );
                if ( s.bFooter )
                {
                        nTable.appendChild( $("tfoot", s.nTable).clone(true)[0] );
                }
                $('thead tr th:lt('+(iCols-oCache.iCells)+')', nTable).remove();
                $('tfoot tr th:lt('+(iCols-oCache.iCells)+')', nTable).remove();

                /* Remove unneeded cells */
                $('tbody tr', nTable).each( function (k) {
                        $('td:lt('+(iCols-oCache.iCells)+')', this).remove();
                } );

                this.fnEqualiseHeights( 'thead', nBody.parentNode, nTable );
                this.fnEqualiseHeights( 'tbody', nBody.parentNode, nTable );
                this.fnEqualiseHeights( 'tfoot', nBody.parentNode, nTable );

                var iWidth = 0;
                for (var i = 0; i < oCache.iCells; i++) {
                        iWidth += $('thead tr th:eq('+(iCols-1-i)+')', s.nTable).outerWidth();
                }
                nTable.style.width = iWidth+"px";
                oCache.nWrapper.style.width = iWidth+"px";
        },


        /**
         * Equalise the heights of the rows in a given table node in a cross browser way. Note that this
         * is more or less lifted as is from FixedColumns
         *  @method  fnEqualiseHeights
         *  @returns void
         *  @param   {string} parent Node type - thead, tbody or tfoot
         *  @param   {element} original Original node to take the heights from
         *  @param   {element} clone Copy the heights to
         *  @private
         */
        "fnEqualiseHeights": function ( parent, original, clone )
        {
                var that = this;
                var originals = $(parent +' tr', original);
                var height;

                $(parent+' tr', clone).each( function (k) {
                        height = originals.eq( k ).css('height');

                        // This is nasty :-(. IE has a sub-pixel error even when setting
                        // the height below (the Firefox fix) which causes the fixed column
                        // to go out of alignment. Need to add a pixel before the assignment
                        // Can this be feature detected? Not sure how...
                        if ( navigator.appName == 'Microsoft Internet Explorer' ) {
                                height = parseInt( height, 10 ) + 1;
                        }

                        $(this).css( 'height', height );

                        // For Firefox to work, we need to also set the height of the
                        // original row, to the value that we read from it! Otherwise there
                        // is a sub-pixel rounding error
                        originals.eq( k ).css( 'height', height );
                } );
        }
};


/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
 * Static properties and methods
 *   We use these for speed! This information is common to all instances of FixedHeader, so no
 * point if having them calculated and stored for each different instance.
 */

/*
 * Variable: oWin
 * Purpose:  Store information about the window positioning
 * Scope:    FixedHeader
 */
FixedHeader.oWin = {
        "iScrollTop": 0,
        "iScrollRight": 0,
        "iScrollBottom": 0,
        "iScrollLeft": 0,
        "iHeight": 0,
        "iWidth": 0
};

/*
 * Variable: oDoc
 * Purpose:  Store information about the document size
 * Scope:    FixedHeader
 */
FixedHeader.oDoc = {
        "iHeight": 0,
        "iWidth": 0
};

/*
 * Variable: afnScroll
 * Purpose:  Array of functions that are to be used for the scrolling components
 * Scope:    FixedHeader
 */
FixedHeader.afnScroll = [];

/*
 * Function: fnMeasure
 * Purpose:  Update the measurements for the window and document
 * Returns:  -
 * Inputs:   -
 */
FixedHeader.fnMeasure = function ()
{
        var
                jqWin = $(window),
                jqDoc = $(document),
                oWin = FixedHeader.oWin,
                oDoc = FixedHeader.oDoc;

        oDoc.iHeight = jqDoc.height();
        oDoc.iWidth = jqDoc.width();

        oWin.iHeight = jqWin.height();
        oWin.iWidth = jqWin.width();
        oWin.iScrollTop = jqWin.scrollTop();
        oWin.iScrollLeft = jqWin.scrollLeft();
        oWin.iScrollRight = oDoc.iWidth - oWin.iScrollLeft - oWin.iWidth;
        oWin.iScrollBottom = oDoc.iHeight - oWin.iScrollTop - oWin.iHeight;
};


FixedHeader.version = "2.1.2";


/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
 * Global processing
 */

/*
 * Just one 'scroll' event handler in FixedHeader, which calls the required components. This is
 * done as an optimisation, to reduce calculation and proagation time
 */
$(window).scroll( function () {
        FixedHeader.fnMeasure();

        for ( var i=0, iLen=FixedHeader.afnScroll.length ; i<iLen ; i++ ) {
                FixedHeader.afnScroll[i]();
        }
} );


$.fn.dataTable.FixedHeader = FixedHeader;
$.fn.DataTable.FixedHeader = FixedHeader;


return FixedHeader;
}; // /factory


// Define as an AMD module if possible
if ( typeof define === 'function' && define.amd ) {
        define( ['jquery', 'datatables'], factory );
}
else if ( typeof exports === 'object' ) {
    // Node/CommonJS
    factory( require('jquery'), require('datatables') );
}
else if ( jQuery && !jQuery.fn.dataTable.FixedHeader ) {
        // Otherwise simply initialise as normal, stopping multiple evaluation
        factory( jQuery, jQuery.fn.dataTable );
}


})(window, document);