X-Git-Url: http://source.jalview.org/gitweb/?a=blobdiff_plain;f=webapp%2Fresources%2Fdatatables-1.9.4%2Fextras%2FColReorder%2Fmedia%2Fjs%2FColReorder.js;fp=webapp%2Fresources%2Fdatatables-1.9.4%2Fextras%2FColReorder%2Fmedia%2Fjs%2FColReorder.js;h=35b96594fb883c3f7d37716dc7754be4381c6861;hb=9bb6ee99ca7f738fac1087190b5481b8fe6e8d9f;hp=0000000000000000000000000000000000000000;hpb=2e3f6b76be585306f1003d849831840c0adb3360;p=proteocache.git

diff --git a/webapp/resources/datatables-1.9.4/extras/ColReorder/media/js/ColReorder.js b/webapp/resources/datatables-1.9.4/extras/ColReorder/media/js/ColReorder.js
new file mode 100755
index 0000000..35b9659
--- /dev/null
+++ b/webapp/resources/datatables-1.9.4/extras/ColReorder/media/js/ColReorder.js
@@ -0,0 +1,982 @@
+/*
+ * File:        ColReorder.js
+ * Version:     1.0.8
+ * CVS:         $Id$
+ * Description: Allow columns to be reordered in a DataTable
+ * Author:      Allan Jardine (www.sprymedia.co.uk)
+ * Created:     Wed Sep 15 18:23:29 BST 2010
+ * Modified:    $Date$ by $Author$
+ * Language:    Javascript
+ * License:     GPL v2 or BSD 3 point style
+ * Project:     DataTables
+ * Contact:     www.sprymedia.co.uk/contact
+ * 
+ * Copyright 2010-2011 Allan Jardine, all rights reserved.
+ *
+ * This source file is free software, under either the GPL v2 license or a
+ * BSD style license, available at:
+ *   http://datatables.net/license_gpl2
+ *   http://datatables.net/license_bsd
+ *
+ */
+
+
+(function($, window, document) {
+
+
+/**
+ * Switch the key value pairing of an index array to be value key (i.e. the old value is now the
+ * key). For example consider [ 2, 0, 1 ] this would be returned as [ 1, 2, 0 ].
+ *  @method  fnInvertKeyValues
+ *  @param   array aIn Array to switch around
+ *  @returns array
+ */
+function fnInvertKeyValues( aIn )
+{
+	var aRet=[];
+	for ( var i=0, iLen=aIn.length ; i<iLen ; i++ )
+	{
+		aRet[ aIn[i] ] = i;
+	}
+	return aRet;
+}
+
+
+/**
+ * Modify an array by switching the position of two elements
+ *  @method  fnArraySwitch
+ *  @param   array aArray Array to consider, will be modified by reference (i.e. no return)
+ *  @param   int iFrom From point
+ *  @param   int iTo Insert point
+ *  @returns void
+ */
+function fnArraySwitch( aArray, iFrom, iTo )
+{
+	var mStore = aArray.splice( iFrom, 1 )[0];
+	aArray.splice( iTo, 0, mStore );
+}
+
+
+/**
+ * Switch the positions of nodes in a parent node (note this is specifically designed for 
+ * table rows). Note this function considers all element nodes under the parent!
+ *  @method  fnDomSwitch
+ *  @param   string sTag Tag to consider
+ *  @param   int iFrom Element to move
+ *  @param   int Point to element the element to (before this point), can be null for append
+ *  @returns void
+ */
+function fnDomSwitch( nParent, iFrom, iTo )
+{
+	var anTags = [];
+	for ( var i=0, iLen=nParent.childNodes.length ; i<iLen ; i++ )
+	{
+		if ( nParent.childNodes[i].nodeType == 1 )
+		{
+			anTags.push( nParent.childNodes[i] );
+		}
+	}
+	var nStore = anTags[ iFrom ];
+	
+	if ( iTo !== null )
+	{
+		nParent.insertBefore( nStore, anTags[iTo] );
+	}
+	else
+	{
+		nParent.appendChild( nStore );
+	}
+}
+
+
+
+/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
+ * DataTables plug-in API functions
+ *
+ * This are required by ColReorder in order to perform the tasks required, and also keep this
+ * code portable, to be used for other column reordering projects with DataTables, if needed.
+ * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
+
+
+/**
+ * Plug-in for DataTables which will reorder the internal column structure by taking the column
+ * from one position (iFrom) and insert it into a given point (iTo).
+ *  @method  $.fn.dataTableExt.oApi.fnColReorder
+ *  @param   object oSettings DataTables settings object - automatically added by DataTables! 
+ *  @param   int iFrom Take the column to be repositioned from this point
+ *  @param   int iTo and insert it into this point
+ *  @returns void
+ */
+$.fn.dataTableExt.oApi.fnColReorder = function ( oSettings, iFrom, iTo )
+{
+	var i, iLen, j, jLen, iCols=oSettings.aoColumns.length, nTrs, oCol;
+	
+	/* Sanity check in the input */
+	if ( iFrom == iTo )
+	{
+		/* Pointless reorder */
+		return;
+	}
+	
+	if ( iFrom < 0 || iFrom >= iCols )
+	{
+		this.oApi._fnLog( oSettings, 1, "ColReorder 'from' index is out of bounds: "+iFrom );
+		return;
+	}
+	
+	if ( iTo < 0 || iTo >= iCols )
+	{
+		this.oApi._fnLog( oSettings, 1, "ColReorder 'to' index is out of bounds: "+iTo );
+		return;
+	}
+	
+	/*
+	 * Calculate the new column array index, so we have a mapping between the old and new
+	 */
+	var aiMapping = [];
+	for ( i=0, iLen=iCols ; i<iLen ; i++ )
+	{
+		aiMapping[i] = i;
+	}
+	fnArraySwitch( aiMapping, iFrom, iTo );
+	var aiInvertMapping = fnInvertKeyValues( aiMapping );
+	
+	
+	/*
+	 * Convert all internal indexing to the new column order indexes
+	 */
+	/* Sorting */
+	for ( i=0, iLen=oSettings.aaSorting.length ; i<iLen ; i++ )
+	{
+		oSettings.aaSorting[i][0] = aiInvertMapping[ oSettings.aaSorting[i][0] ];
+	}
+	
+	/* Fixed sorting */
+	if ( oSettings.aaSortingFixed !== null )
+	{
+		for ( i=0, iLen=oSettings.aaSortingFixed.length ; i<iLen ; i++ )
+		{
+			oSettings.aaSortingFixed[i][0] = aiInvertMapping[ oSettings.aaSortingFixed[i][0] ];
+		}
+	}
+	
+	/* Data column sorting (the column which the sort for a given column should take place on) */
+	for ( i=0, iLen=iCols ; i<iLen ; i++ )
+	{
+		oCol = oSettings.aoColumns[i];
+		for ( j=0, jLen=oCol.aDataSort.length ; j<jLen ; j++ )
+		{
+			oCol.aDataSort[j] = aiInvertMapping[ oCol.aDataSort[j] ];
+		}
+	}
+	
+	/* Update the Get and Set functions for each column */
+	for ( i=0, iLen=iCols ; i<iLen ; i++ )
+	{
+		oCol = oSettings.aoColumns[i];
+		if ( typeof oCol.mData == 'number' ) {
+			oCol.mData = aiInvertMapping[ oCol.mData ];
+			oCol.fnGetData = oSettings.oApi._fnGetObjectDataFn( oCol.mData );
+			oCol.fnSetData = oSettings.oApi._fnSetObjectDataFn( oCol.mData );
+		}
+	}
+	
+	
+	/*
+	 * Move the DOM elements
+	 */
+	if ( oSettings.aoColumns[iFrom].bVisible )
+	{
+		/* Calculate the current visible index and the point to insert the node before. The insert
+		 * before needs to take into account that there might not be an element to insert before,
+		 * in which case it will be null, and an appendChild should be used
+		 */
+		var iVisibleIndex = this.oApi._fnColumnIndexToVisible( oSettings, iFrom );
+		var iInsertBeforeIndex = null;
+		
+		i = iTo < iFrom ? iTo : iTo + 1;
+		while ( iInsertBeforeIndex === null && i < iCols )
+		{
+			iInsertBeforeIndex = this.oApi._fnColumnIndexToVisible( oSettings, i );
+			i++;
+		}
+		
+		/* Header */
+		nTrs = oSettings.nTHead.getElementsByTagName('tr');
+		for ( i=0, iLen=nTrs.length ; i<iLen ; i++ )
+		{
+			fnDomSwitch( nTrs[i], iVisibleIndex, iInsertBeforeIndex );
+		}
+		
+		/* Footer */
+		if ( oSettings.nTFoot !== null )
+		{
+			nTrs = oSettings.nTFoot.getElementsByTagName('tr');
+			for ( i=0, iLen=nTrs.length ; i<iLen ; i++ )
+			{
+				fnDomSwitch( nTrs[i], iVisibleIndex, iInsertBeforeIndex );
+			}
+		}
+		
+		/* Body */
+		for ( i=0, iLen=oSettings.aoData.length ; i<iLen ; i++ )
+		{
+			if ( oSettings.aoData[i].nTr !== null )
+			{
+				fnDomSwitch( oSettings.aoData[i].nTr, iVisibleIndex, iInsertBeforeIndex );
+			}
+		}
+	}
+	
+	
+	/* 
+	 * Move the internal array elements
+	 */
+	/* Columns */
+	fnArraySwitch( oSettings.aoColumns, iFrom, iTo );
+	
+	/* Search columns */
+	fnArraySwitch( oSettings.aoPreSearchCols, iFrom, iTo );
+	
+	/* Array array - internal data anodes cache */
+	for ( i=0, iLen=oSettings.aoData.length ; i<iLen ; i++ )
+	{
+		if ( $.isArray( oSettings.aoData[i]._aData ) ) {
+		  fnArraySwitch( oSettings.aoData[i]._aData, iFrom, iTo );
+		}
+		fnArraySwitch( oSettings.aoData[i]._anHidden, iFrom, iTo );
+	}
+	
+	/* Reposition the header elements in the header layout array */
+	for ( i=0, iLen=oSettings.aoHeader.length ; i<iLen ; i++ )
+	{
+		fnArraySwitch( oSettings.aoHeader[i], iFrom, iTo );
+	}
+	
+	if ( oSettings.aoFooter !== null )
+	{
+		for ( i=0, iLen=oSettings.aoFooter.length ; i<iLen ; i++ )
+		{
+			fnArraySwitch( oSettings.aoFooter[i], iFrom, iTo );
+		}
+	}
+	
+	
+	/*
+	 * Update DataTables' event handlers
+	 */
+	
+	/* Sort listener */
+	for ( i=0, iLen=iCols ; i<iLen ; i++ )
+	{
+		$(oSettings.aoColumns[i].nTh).unbind('click');
+		this.oApi._fnSortAttachListener( oSettings, oSettings.aoColumns[i].nTh, i );
+	}
+	
+	
+	/* Fire an event so other plug-ins can update */
+	$(oSettings.oInstance).trigger( 'column-reorder', [ oSettings, {
+		"iFrom": iFrom,
+		"iTo": iTo,
+		"aiInvertMapping": aiInvertMapping
+	} ] );
+	
+	if ( typeof oSettings.oInstance._oPluginFixedHeader != 'undefined' )
+	{
+		oSettings.oInstance._oPluginFixedHeader.fnUpdate();
+	}
+};
+
+
+
+
+/** 
+ * ColReorder provides column visiblity control for DataTables
+ * @class ColReorder
+ * @constructor
+ * @param {object} DataTables settings object
+ * @param {object} ColReorder options
+ */
+ColReorder = function( oDTSettings, oOpts )
+{
+	/* Santiy check that we are a new instance */
+	if ( !this.CLASS || this.CLASS != "ColReorder" )
+	{
+		alert( "Warning: ColReorder must be initialised with the keyword 'new'" );
+	}
+	
+	if ( typeof oOpts == 'undefined' )
+	{
+		oOpts = {};
+	}
+	
+	
+	/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
+	 * Public class variables
+	 * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
+	
+	/**
+	 * @namespace Settings object which contains customisable information for ColReorder instance
+	 */
+	this.s = {
+		/**
+		 * DataTables settings object
+		 *  @property dt
+		 *  @type     Object
+		 *  @default  null
+		 */
+		"dt": null,
+		
+		/**
+		 * Initialisation object used for this instance
+		 *  @property init
+		 *  @type     object
+		 *  @default  {}
+		 */
+		"init": oOpts,
+		
+		/**
+		 * Number of columns to fix (not allow to be reordered)
+		 *  @property fixed
+		 *  @type     int
+		 *  @default  0
+		 */
+		"fixed": 0,
+		
+		/**
+		 * Callback function for once the reorder has been done
+		 *  @property dropcallback
+		 *  @type     function
+		 *  @default  null
+		 */
+		"dropCallback": null,
+		
+		/**
+		 * @namespace Information used for the mouse drag
+		 */
+		"mouse": {
+			"startX": -1,
+			"startY": -1,
+			"offsetX": -1,
+			"offsetY": -1,
+			"target": -1,
+			"targetIndex": -1,
+			"fromIndex": -1
+		},
+		
+		/**
+		 * Information which is used for positioning the insert cusor and knowing where to do the
+		 * insert. Array of objects with the properties:
+		 *   x: x-axis position
+		 *   to: insert point
+		 *  @property aoTargets
+		 *  @type     array
+		 *  @default  []
+		 */
+		"aoTargets": []
+	};
+	
+	
+	/**
+	 * @namespace Common and useful DOM elements for the class instance
+	 */
+	this.dom = {
+		/**
+		 * Dragging element (the one the mouse is moving)
+		 *  @property drag
+		 *  @type     element
+		 *  @default  null
+		 */
+		"drag": null,
+		
+		/**
+		 * The insert cursor
+		 *  @property pointer
+		 *  @type     element
+		 *  @default  null
+		 */
+		"pointer": null
+	};
+	
+	
+	/* Constructor logic */
+	this.s.dt = oDTSettings.oInstance.fnSettings();
+	this._fnConstruct();
+
+	/* Add destroy callback */
+	oDTSettings.oApi._fnCallbackReg(oDTSettings, 'aoDestroyCallback', jQuery.proxy(this._fnDestroy, this), 'ColReorder');
+
+	/* Store the instance for later use */
+	ColReorder.aoInstances.push( this );
+	return this;
+};
+
+
+
+ColReorder.prototype = {
+	/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
+	 * Public methods
+	 * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
+	
+	"fnReset": function ()
+	{
+		var a = [];
+		for ( var i=0, iLen=this.s.dt.aoColumns.length ; i<iLen ; i++ )
+		{
+			a.push( this.s.dt.aoColumns[i]._ColReorder_iOrigCol );
+		}
+		
+		this._fnOrderColumns( a );
+	},
+	
+	
+	/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
+	 * Private methods (they are of course public in JS, but recommended as private)
+	 * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
+	
+	/**
+	 * Constructor logic
+	 *  @method  _fnConstruct
+	 *  @returns void
+	 *  @private 
+	 */
+	"_fnConstruct": function ()
+	{
+		var that = this;
+		var i, iLen;
+		
+		/* Columns discounted from reordering - counting left to right */
+		if ( typeof this.s.init.iFixedColumns != 'undefined' )
+		{
+			this.s.fixed = this.s.init.iFixedColumns;
+		}
+		
+		/* Drop callback initialisation option */
+		if ( typeof this.s.init.fnReorderCallback != 'undefined' )
+		{
+			this.s.dropCallback = this.s.init.fnReorderCallback;
+		}
+		
+		/* Add event handlers for the drag and drop, and also mark the original column order */
+		for ( i=0, iLen=this.s.dt.aoColumns.length ; i<iLen ; i++ )
+		{
+			if ( i > this.s.fixed-1 )
+			{
+				this._fnMouseListener( i, this.s.dt.aoColumns[i].nTh );
+			}
+			
+			/* Mark the original column order for later reference */
+			this.s.dt.aoColumns[i]._ColReorder_iOrigCol = i;
+		}
+		
+		/* State saving */
+		this.s.dt.oApi._fnCallbackReg( this.s.dt, 'aoStateSaveParams', function (oS, oData) {
+			that._fnStateSave.call( that, oData );
+		}, "ColReorder_State" );
+		
+		/* An initial column order has been specified */
+		var aiOrder = null;
+		if ( typeof this.s.init.aiOrder != 'undefined' )
+		{
+			aiOrder = this.s.init.aiOrder.slice();
+		}
+		
+		/* State loading, overrides the column order given */
+		if ( this.s.dt.oLoadedState && typeof this.s.dt.oLoadedState.ColReorder != 'undefined' &&
+		  this.s.dt.oLoadedState.ColReorder.length == this.s.dt.aoColumns.length )
+		{
+			aiOrder = this.s.dt.oLoadedState.ColReorder;
+		}
+		
+		/* If we have an order to apply - do so */
+		if ( aiOrder )
+		{
+			/* We might be called during or after the DataTables initialisation. If before, then we need
+			 * to wait until the draw is done, if after, then do what we need to do right away
+			 */
+			if ( !that.s.dt._bInitComplete )
+			{
+				var bDone = false;
+				this.s.dt.aoDrawCallback.push( {
+					"fn": function () {
+						if ( !that.s.dt._bInitComplete && !bDone )
+						{
+							bDone = true;
+							var resort = fnInvertKeyValues( aiOrder );
+							that._fnOrderColumns.call( that, resort );
+						}
+					},
+					"sName": "ColReorder_Pre"
+				} );
+			}
+			else
+			{
+				var resort = fnInvertKeyValues( aiOrder );
+				that._fnOrderColumns.call( that, resort );
+			}
+		}
+	},
+	
+	
+	/**
+	 * Set the column order from an array
+	 *  @method  _fnOrderColumns
+	 *  @param   array a An array of integers which dictate the column order that should be applied
+	 *  @returns void
+	 *  @private 
+	 */
+	"_fnOrderColumns": function ( a )
+	{
+		if ( a.length != this.s.dt.aoColumns.length )
+		{
+			this.s.dt.oInstance.oApi._fnLog( this.s.dt, 1, "ColReorder - array reorder does not "+
+			 	"match known number of columns. Skipping." );
+			return;
+		}
+		
+		for ( var i=0, iLen=a.length ; i<iLen ; i++ )
+		{
+			var currIndex = $.inArray( i, a );
+			if ( i != currIndex )
+			{
+				/* Reorder our switching array */
+				fnArraySwitch( a, currIndex, i );
+				
+				/* Do the column reorder in the table */
+				this.s.dt.oInstance.fnColReorder( currIndex, i );
+			}
+		}
+		
+		/* When scrolling we need to recalculate the column sizes to allow for the shift */
+		if ( this.s.dt.oScroll.sX !== "" || this.s.dt.oScroll.sY !== "" )
+		{
+			this.s.dt.oInstance.fnAdjustColumnSizing();
+		}
+			
+		/* Save the state */
+		this.s.dt.oInstance.oApi._fnSaveState( this.s.dt );
+	},
+	
+	
+	/**
+	 * Because we change the indexes of columns in the table, relative to their starting point
+	 * we need to reorder the state columns to what they are at the starting point so we can
+	 * then rearrange them again on state load!
+	 *  @method  _fnStateSave
+	 *  @param   object oState DataTables state 
+	 *  @returns string JSON encoded cookie string for DataTables
+	 *  @private 
+	 */
+	"_fnStateSave": function ( oState )
+	{
+		var i, iLen, aCopy, iOrigColumn;
+		var oSettings = this.s.dt;
+
+		/* Sorting */
+		for ( i=0 ; i<oState.aaSorting.length ; i++ )
+		{
+			oState.aaSorting[i][0] = oSettings.aoColumns[ oState.aaSorting[i][0] ]._ColReorder_iOrigCol;
+		}
+
+		aSearchCopy = $.extend( true, [], oState.aoSearchCols );
+		oState.ColReorder = [];
+
+		for ( i=0, iLen=oSettings.aoColumns.length ; i<iLen ; i++ )
+		{
+			iOrigColumn = oSettings.aoColumns[i]._ColReorder_iOrigCol;
+
+			/* Column filter */
+			oState.aoSearchCols[ iOrigColumn ] = aSearchCopy[i];
+
+			/* Visibility */
+			oState.abVisCols[ iOrigColumn ] = oSettings.aoColumns[i].bVisible;
+		
+			/* Column reordering */
+			oState.ColReorder.push( iOrigColumn );
+		}
+	},
+	
+	
+	/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
+	 * Mouse drop and drag
+	 */
+	
+	/**
+	 * Add a mouse down listener to a particluar TH element
+	 *  @method  _fnMouseListener
+	 *  @param   int i Column index
+	 *  @param   element nTh TH element clicked on
+	 *  @returns void
+	 *  @private 
+	 */
+	"_fnMouseListener": function ( i, nTh )
+	{
+		var that = this;
+		$(nTh).bind( 'mousedown.ColReorder', function (e) {
+			e.preventDefault();
+			that._fnMouseDown.call( that, e, nTh );
+		} );
+	},
+	
+	
+	/**
+	 * Mouse down on a TH element in the table header
+	 *  @method  _fnMouseDown
+	 *  @param   event e Mouse event
+	 *  @param   element nTh TH element to be dragged
+	 *  @returns void
+	 *  @private 
+	 */
+	"_fnMouseDown": function ( e, nTh )
+	{
+		var
+			that = this,
+			aoColumns = this.s.dt.aoColumns;
+		
+		/* Store information about the mouse position */
+		var nThTarget = e.target.nodeName == "TH" ? e.target : $(e.target).parents('TH')[0];
+		var offset = $(nThTarget).offset();
+		this.s.mouse.startX = e.pageX;
+		this.s.mouse.startY = e.pageY;
+		this.s.mouse.offsetX = e.pageX - offset.left;
+		this.s.mouse.offsetY = e.pageY - offset.top;
+		this.s.mouse.target = nTh;
+		this.s.mouse.targetIndex = $('th', nTh.parentNode).index( nTh );
+		this.s.mouse.fromIndex = this.s.dt.oInstance.oApi._fnVisibleToColumnIndex( this.s.dt, 
+			this.s.mouse.targetIndex );
+		
+		/* Calculate a cached array with the points of the column inserts, and the 'to' points */
+		this.s.aoTargets.splice( 0, this.s.aoTargets.length );
+		
+		this.s.aoTargets.push( {
+			"x":  $(this.s.dt.nTable).offset().left,
+			"to": 0
+		} );
+		
+		var iToPoint = 0;
+		for ( var i=0, iLen=aoColumns.length ; i<iLen ; i++ )
+		{
+			/* For the column / header in question, we want it's position to remain the same if the 
+			 * position is just to it's immediate left or right, so we only incremement the counter for
+			 * other columns
+			 */
+			if ( i != this.s.mouse.fromIndex )
+			{
+				iToPoint++;
+			}
+			
+			if ( aoColumns[i].bVisible )
+			{
+				this.s.aoTargets.push( {
+					"x":  $(aoColumns[i].nTh).offset().left + $(aoColumns[i].nTh).outerWidth(),
+					"to": iToPoint
+				} );
+			}
+		}
+		
+		/* Disallow columns for being reordered by drag and drop, counting left to right */
+		if ( this.s.fixed !== 0 )
+		{
+			this.s.aoTargets.splice( 0, this.s.fixed );
+		}
+		
+		/* Add event handlers to the document */
+		$(document).bind( 'mousemove.ColReorder', function (e) {
+			that._fnMouseMove.call( that, e );
+		} );
+		
+		$(document).bind( 'mouseup.ColReorder', function (e) {
+			that._fnMouseUp.call( that, e );
+		} );
+	},
+	
+	
+	/**
+	 * Deal with a mouse move event while dragging a node
+	 *  @method  _fnMouseMove
+	 *  @param   event e Mouse event
+	 *  @returns void
+	 *  @private 
+	 */
+	"_fnMouseMove": function ( e )
+	{
+		var that = this;
+		
+		if ( this.dom.drag === null )
+		{
+			/* Only create the drag element if the mouse has moved a specific distance from the start
+			 * point - this allows the user to make small mouse movements when sorting and not have a
+			 * possibly confusing drag element showing up
+			 */
+			if ( Math.pow(
+				Math.pow(e.pageX - this.s.mouse.startX, 2) + 
+				Math.pow(e.pageY - this.s.mouse.startY, 2), 0.5 ) < 5 )
+			{
+				return;
+			}
+			this._fnCreateDragNode();
+		}
+		
+		/* Position the element - we respect where in the element the click occured */
+		this.dom.drag.style.left = (e.pageX - this.s.mouse.offsetX) + "px";
+		this.dom.drag.style.top = (e.pageY - this.s.mouse.offsetY) + "px";
+		
+		/* Based on the current mouse position, calculate where the insert should go */
+		var bSet = false;
+		for ( var i=1, iLen=this.s.aoTargets.length ; i<iLen ; i++ )
+		{
+			if ( e.pageX < this.s.aoTargets[i-1].x + ((this.s.aoTargets[i].x-this.s.aoTargets[i-1].x)/2) )
+			{
+				this.dom.pointer.style.left = this.s.aoTargets[i-1].x +"px";
+				this.s.mouse.toIndex = this.s.aoTargets[i-1].to;
+				bSet = true;
+				break;
+			}
+		}
+		
+		/* The insert element wasn't positioned in the array (less than operator), so we put it at 
+		 * the end
+		 */
+		if ( !bSet )
+		{
+			this.dom.pointer.style.left = this.s.aoTargets[this.s.aoTargets.length-1].x +"px";
+			this.s.mouse.toIndex = this.s.aoTargets[this.s.aoTargets.length-1].to;
+		}
+	},
+	
+	
+	/**
+	 * Finish off the mouse drag and insert the column where needed
+	 *  @method  _fnMouseUp
+	 *  @param   event e Mouse event
+	 *  @returns void
+	 *  @private 
+	 */
+	"_fnMouseUp": function ( e )
+	{
+		var that = this;
+		
+		$(document).unbind( 'mousemove.ColReorder' );
+		$(document).unbind( 'mouseup.ColReorder' );
+		
+		if ( this.dom.drag !== null )
+		{
+			/* Remove the guide elements */
+			document.body.removeChild( this.dom.drag );
+			document.body.removeChild( this.dom.pointer );
+			this.dom.drag = null;
+			this.dom.pointer = null;
+			
+			/* Actually do the reorder */
+			this.s.dt.oInstance.fnColReorder( this.s.mouse.fromIndex, this.s.mouse.toIndex );
+			
+			/* When scrolling we need to recalculate the column sizes to allow for the shift */
+			if ( this.s.dt.oScroll.sX !== "" || this.s.dt.oScroll.sY !== "" )
+			{
+				this.s.dt.oInstance.fnAdjustColumnSizing();
+			}
+			
+			if ( this.s.dropCallback !== null )
+			{
+				this.s.dropCallback.call( this );
+			}
+			
+			/* Save the state */
+			this.s.dt.oInstance.oApi._fnSaveState( this.s.dt );
+		}
+	},
+	
+	
+	/**
+	 * Copy the TH element that is being drags so the user has the idea that they are actually 
+	 * moving it around the page.
+	 *  @method  _fnCreateDragNode
+	 *  @returns void
+	 *  @private 
+	 */
+	"_fnCreateDragNode": function ()
+	{
+		var that = this;
+		
+		this.dom.drag = $(this.s.dt.nTHead.parentNode).clone(true)[0];
+		this.dom.drag.className += " DTCR_clonedTable";
+		while ( this.dom.drag.getElementsByTagName('caption').length > 0 )
+		{
+			this.dom.drag.removeChild( this.dom.drag.getElementsByTagName('caption')[0] );
+		}
+		while ( this.dom.drag.getElementsByTagName('tbody').length > 0 )
+		{
+			this.dom.drag.removeChild( this.dom.drag.getElementsByTagName('tbody')[0] );
+		}
+		while ( this.dom.drag.getElementsByTagName('tfoot').length > 0 )
+		{
+			this.dom.drag.removeChild( this.dom.drag.getElementsByTagName('tfoot')[0] );
+		}
+		
+		$('thead tr:eq(0)', this.dom.drag).each( function () {
+			$('th', this).eq(that.s.mouse.targetIndex).siblings().remove();
+		} );
+		$('tr', this.dom.drag).height( $('tr:eq(0)', that.s.dt.nTHead).height() );
+		
+		$('thead tr:gt(0)', this.dom.drag).remove();
+		
+		$('thead th:eq(0)', this.dom.drag).each( function (i) {
+			this.style.width = $('th:eq('+that.s.mouse.targetIndex+')', that.s.dt.nTHead).width()+"px";
+		} );
+		
+		this.dom.drag.style.position = "absolute";
+		this.dom.drag.style.top = "0px";
+		this.dom.drag.style.left = "0px";
+		this.dom.drag.style.width = $('th:eq('+that.s.mouse.targetIndex+')', that.s.dt.nTHead).outerWidth()+"px";
+		
+		
+		this.dom.pointer = document.createElement( 'div' );
+		this.dom.pointer.className = "DTCR_pointer";
+		this.dom.pointer.style.position = "absolute";
+		
+		if ( this.s.dt.oScroll.sX === "" && this.s.dt.oScroll.sY === "" )
+		{
+			this.dom.pointer.style.top = $(this.s.dt.nTable).offset().top+"px";
+			this.dom.pointer.style.height = $(this.s.dt.nTable).height()+"px";
+		}
+		else
+		{
+			this.dom.pointer.style.top = $('div.dataTables_scroll', this.s.dt.nTableWrapper).offset().top+"px";
+			this.dom.pointer.style.height = $('div.dataTables_scroll', this.s.dt.nTableWrapper).height()+"px";
+		}
+	
+		document.body.appendChild( this.dom.pointer );
+		document.body.appendChild( this.dom.drag );
+	},
+
+	/**
+	 * Clean up ColReorder memory references and event handlers
+	 *  @method  _fnDestroy
+	 *  @returns void
+	 *  @private
+	 */
+	"_fnDestroy": function ()
+	{
+		for ( var i=0, iLen=ColReorder.aoInstances.length ; i<iLen ; i++ )
+		{
+			if ( ColReorder.aoInstances[i] === this )
+			{
+				ColReorder.aoInstances.splice( i, 1 );
+				break;
+			}
+		}
+
+		$(this.s.dt.nTHead).find( '*' ).unbind( '.ColReorder' );
+
+		this.s.dt.oInstance._oPluginColReorder = null;
+		this.s = null;
+	}
+};
+
+
+
+
+
+/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
+ * Static parameters
+ * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
+
+/**
+ * Array of all ColReorder instances for later reference
+ *  @property ColReorder.aoInstances
+ *  @type     array
+ *  @default  []
+ *  @static
+ */
+ColReorder.aoInstances = [];
+
+
+
+
+
+/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
+ * Static functions
+ * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
+
+/**
+ * Reset the column ordering for a DataTables instance
+ *  @method  ColReorder.fnReset
+ *  @param   object oTable DataTables instance to consider
+ *  @returns void
+ *  @static
+ */
+ColReorder.fnReset = function ( oTable )
+{
+	for ( var i=0, iLen=ColReorder.aoInstances.length ; i<iLen ; i++ )
+	{
+		if ( ColReorder.aoInstances[i].s.dt.oInstance == oTable )
+		{
+			ColReorder.aoInstances[i].fnReset();
+		}
+	}
+};
+
+
+
+
+
+/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
+ * Constants
+ * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
+
+/**
+ * Name of this class
+ *  @constant CLASS
+ *  @type     String
+ *  @default  ColReorder
+ */
+ColReorder.prototype.CLASS = "ColReorder";
+
+
+/**
+ * ColReorder version
+ *  @constant  VERSION
+ *  @type      String
+ *  @default   As code
+ */
+ColReorder.VERSION = "1.0.8";
+ColReorder.prototype.VERSION = ColReorder.VERSION;
+
+
+
+
+
+/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
+ * Initialisation
+ * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
+
+/*
+ * Register a new feature with DataTables
+ */
+if ( typeof $.fn.dataTable == "function" &&
+     typeof $.fn.dataTableExt.fnVersionCheck == "function" &&
+     $.fn.dataTableExt.fnVersionCheck('1.9.3') )
+{
+	$.fn.dataTableExt.aoFeatures.push( {
+		"fnInit": function( oDTSettings ) {
+			var oTable = oDTSettings.oInstance;
+			if ( typeof oTable._oPluginColReorder == 'undefined' ) {
+				var opts = typeof oDTSettings.oInit.oColReorder != 'undefined' ? 
+					oDTSettings.oInit.oColReorder : {};
+				oTable._oPluginColReorder = new ColReorder( oDTSettings, opts );
+			} else {
+				oTable.oApi._fnLog( oDTSettings, 1, "ColReorder attempted to initialise twice. Ignoring second" );
+			}
+			
+			return null; /* No node to insert */
+		},
+		"cFeature": "R",
+		"sFeature": "ColReorder"
+	} );
+}
+else
+{
+	alert( "Warning: ColReorder requires DataTables 1.9.3 or greater - www.datatables.net/download");
+}
+
+})(jQuery, window, document);