/*
* File: ColReorderWithResize.js
* Version: 1.0.7
* CVS: $Id$
* Description: Allow columns to be reordered in a DataTable
* Author: Allan Jardine (www.sprymedia.co.uk)
* Author: Christophe Battarel (www.altairis.fr)
* Created: Wed Sep 15 18:23:29 BST 2010
* Modified: July 2011 by Christophe Battarel - christophe.battarel@altairis.fr (columns resizable)
* Modified: February 2012 by Martin Marchetta - martin.marchetta@gmail.com
* 1. Made the "hot area" for resizing a little wider (it was a little difficult to hit the exact border of a column for resizing)
* 2. Resizing didn't work at all when using scroller (that plugin splits the table into 2 different tables: one for the header and another one for the body, so when you resized the header, the data columns didn't follow)
* 3. Fixed collateral effects of sorting feature
* 4. If sScrollX is enabled (i.e. horizontal scrolling), when resizing a column the width of the other columns is not changed, but the whole
* table is resized to give an Excel-like behavior (good suggestion by Allan)
* Modified: February 2012 by Christophe Battarel - christophe.battarel@altairis.fr (ColReorder v1.0.5 adaptation)
* Modified: September 16th 2012 by Hassan Kamara - h@phrmc.com
* 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++ )
{
//Martin Marchetta:
//Update this field which is the one used by DataTables for getting the column's data for sorting.
oSettings.aoColumns[i].aDataSort = [i];
//Update the internal column index, since columns are actually being re-ordered in the internal structure
oSettings.aoColumns[i]._ColReorder_iOrigCol = i;
///////////////////////////////////
$(oSettings.aoColumns[i].nTh).unbind('click');
this.oApi._fnSortAttachListener( oSettings, oSettings.aoColumns[i].nTh, i );
}
/*
* Any extra operations for the other plug-ins
*/
if ( typeof ColVis != 'undefined' )
{
ColVis.fnRebuild( oSettings.oInstance );
}
/* 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,
/**
* Allow Reorder functionnality
* @property allowReorder
* @type boolean
* @default true
*/
"allowReorder": true,
/**
* Allow Resize functionnality
* @property allowResize
* @type boolean
* @default true
*/
"allowResize": true,
/**
* 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,
/**
* Resizing a column
* @property drag
* @type element
* @default null
*/
"resize": null,
/**
* The insert cursor
* @property pointer
* @type element
* @default null
*/
"pointer": null
};
/////////////////
//Martin Marchetta: keep the current table's size in order to resize it if columns are resized and scrollX is enabled
this.table_size = -1;
/////////////////
/* 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;
/* allow reorder */
if ( typeof this.s.init.allowReorder != 'undefined' )
{
this.s.allowReorder = this.s.init.allowReorder;
}
/* allow resize */
if ( typeof this.s.init.allowResize != 'undefined' )
{
this.s.allowResize = this.s.init.allowResize;
}
/* 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( oDTSettings, 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;
//Martin Marchetta (rebind events since after column re-order they use wrong column indices)
$(nTh).unbind('mousemove.ColReorder');
$(nTh).unbind('mousedown.ColReorder');
////////////////
// listen to mousemove event for resize
if (this.s.allowResize) {
$(nTh).bind( 'mousemove.ColReorder', function (e) {
if ( that.dom.drag === null && that.dom.resize === null)
{
/* Store information about the mouse position */
var nThTarget = e.target.nodeName == "TH" ? e.target : $(e.target).parents('TH')[0];
var offset = $(nThTarget).offset();
var nLength = $(nThTarget).innerWidth();
/* are we on the col border (if so, resize col) */
if (Math.abs(e.pageX - Math.round(offset.left + nLength)) <= 5)
{
$(nThTarget).css({'cursor': 'col-resize'});
}
else
$(nThTarget).css({'cursor': 'pointer'});
}
} );
}
// listen to mousedown event
$(nTh).bind( 'mousedown.ColReorder', function (e) {
that._fnMouseDown.call( that, e, nTh, i ); //Martin Marchetta: added the index of the column dragged or resized
return false;
} );
},
/**
* Mouse down on a TH element in the table header
* @method _fnMouseDown
* @param event e Mouse event
* @param element nTh TH element to be dragged
* @param i The column that's resized/dragged
* @returns void
* @private
*/
"_fnMouseDown": function ( e, nTh, i )
{
var
that = this,
aoColumns = this.s.dt.aoColumns;
/* are we resizing a column ? */
if ($(nTh).css('cursor') == 'col-resize') {
this.s.mouse.startX = e.pageX;
this.s.mouse.startWidth = $(nTh).width();
this.s.mouse.resizeElem = $(nTh);
var nThNext = $(nTh).next();
this.s.mouse.nextStartWidth = $(nThNext).width();
that.dom.resize = true;
////////////////////
//Martin Marchetta
//a. Disable column sorting so as to avoid issues when finishing column resizing
this.s.dt.aoColumns[i].bSortable = false;
//b. Disable Autowidth feature (now the user is in charge of setting column width so keeping this enabled looses changes after operations)
this.s.dt.oFeatures.bAutoWidth = false;
////////////////////
}
else if (this.s.allowReorder) {
that.dom.resize = null;
/* 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, i); //Martin Marchetta: Added index of the call being dragged or resized
} );
$(document).bind( 'mouseup.ColReorder', function (e) {
//Martin Marcheta: Added this small delay in order to prevent collision with column sort feature (there must be a better
//way of doing this, but I don't have more time to digg into it)
setTimeout(function(){
that._fnMouseUp.call( that, e, i ); //Martin Marchetta: Added index of the call being dragged or resized
}, 10);
} );
},
/**
* Deal with a mouse move event while dragging a node
* @method _fnMouseMove
* @param event e Mouse event
* @param colResized Index of the column that's being dragged or resized (index within the internal model, not the visible order)
* @returns void
* @private
*/
"_fnMouseMove": function ( e, colResized )
{
var that = this;
////////////////////
//Martin Marchetta: Determine if ScrollX is enabled
var scrollXEnabled;
scrollXEnabled = this.s.dt.oInit.sScrollX === "" ? false:true;
//Keep the current table's width (used in case sScrollX is enabled to resize the whole table, giving an Excel-like behavior)
if(this.table_size < 0 && scrollXEnabled && $('div.dataTables_scrollHead', this.s.dt.nTableWrapper) != undefined){
if($('div.dataTables_scrollHead', this.s.dt.nTableWrapper).length > 0)
this.table_size = $($('div.dataTables_scrollHead', this.s.dt.nTableWrapper)[0].childNodes[0].childNodes[0]).width();
}
////////////////////
/* are we resizing a column ? */
if (this.dom.resize) {
var nTh = this.s.mouse.resizeElem;
var nThNext = $(nTh).next();
var moveLength = e.pageX-this.s.mouse.startX;
if (moveLength != 0 && !scrollXEnabled)
$(nThNext).width(this.s.mouse.nextStartWidth - moveLength);
$(nTh).width(this.s.mouse.startWidth + moveLength);
//Martin Marchetta: Resize the header too (if sScrollX is enabled)
if(scrollXEnabled && $('div.dataTables_scrollHead', this.s.dt.nTableWrapper) != undefined){
if($('div.dataTables_scrollHead', this.s.dt.nTableWrapper).length > 0)
$($('div.dataTables_scrollHead', this.s.dt.nTableWrapper)[0].childNodes[0].childNodes[0]).width(this.table_size + moveLength);
}
////////////////////////
//Martin Marchetta: Fixed col resizing when the scroller is enabled.
var visibleColumnIndex;
//First determine if this plugin is being used along with the smart scroller...
if($('div.dataTables_scrollBody') != null){
//...if so, when resizing the header, also resize the table's body (when enabling the Scroller, the table's header and
//body are split into different tables, so the column resizing doesn't work anymore)
if($('div.dataTables_scrollBody').length > 0){
//Since some columns might have been hidden, find the correct one to resize in the table's body
var currentColumnIndex;
visibleColumnIndex = -1;
for(currentColumnIndex=-1; currentColumnIndex < this.s.dt.aoColumns.length-1 && currentColumnIndex != colResized; currentColumnIndex++){
if(this.s.dt.aoColumns[currentColumnIndex+1].bVisible)
visibleColumnIndex++;
}
//Get the scroller's div
tableScroller = $('div.dataTables_scrollBody', this.s.dt.nTableWrapper)[0];
//Get the table
scrollingTableHead = $(tableScroller)[0].childNodes[0].childNodes[0].childNodes[0];
//Resize the columns
if (moveLength != 0 && !scrollXEnabled){
$($(scrollingTableHead)[0].childNodes[visibleColumnIndex+1]).width(this.s.mouse.nextStartWidth - moveLength);
}
$($(scrollingTableHead)[0].childNodes[visibleColumnIndex]).width(this.s.mouse.startWidth + moveLength);
//Resize the table too
if(scrollXEnabled)
$($(tableScroller)[0].childNodes[0]).width(this.table_size + moveLength);
}
}
////////////////////////
return;
}
else if (this.s.allowReorder) {
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
* @param colResized The index of the column that was just dragged or resized (index within the internal model, not the visible order).
* @returns void
* @private
*/
"_fnMouseUp": function ( e, colResized)
{
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 );
}
////////////
//Martin Marchetta: Re-initialize so as to register the new column order
//(otherwise the events remain bound to the original column indices)
this._fnConstruct();
///////////
/* Save the state */
this.s.dt.oInstance.oApi._fnSaveState( this.s.dt );
}
///////////////////////////////////////////////////////
//Martin Marchetta
else if(this.dom.resize !== null) {
var i;
var j;
var currentColumn;
var nextVisibleColumnIndex;
var previousVisibleColumnIndex;
var scrollXEnabled;
//Re-enable column sorting
this.s.dt.aoColumns[colResized].bSortable = true;
//Save the new resized column's width
this.s.dt.aoColumns[colResized].sWidth = $(this.s.mouse.resizeElem).innerWidth() + "px";
//If other columns might have changed their size, save their size too
scrollXEnabled = this.s.dt.oInit.sScrollX === "" ? false:true;
if(!scrollXEnabled){
//The colResized index (internal model) here might not match the visible index since some columns might have been hidden
for(nextVisibleColumnIndex=colResized+1; nextVisibleColumnIndex < this.s.dt.aoColumns.length; nextVisibleColumnIndex++){
if(this.s.dt.aoColumns[nextVisibleColumnIndex].bVisible)
break;
}
for(previousVisibleColumnIndex=colResized-1; previousVisibleColumnIndex >= 0; previousVisibleColumnIndex--){
if(this.s.dt.aoColumns[previousVisibleColumnIndex].bVisible)
break;
}
if(this.s.dt.aoColumns.length > nextVisibleColumnIndex)
this.s.dt.aoColumns[nextVisibleColumnIndex].sWidth = $(this.s.mouse.resizeElem).next().innerWidth() + "px";
else{ //The column resized is the right-most, so save the sizes of all the columns at the left
currentColumn = this.s.mouse.resizeElem;
for(i = previousVisibleColumnIndex; i > 0; i--){
if(this.s.dt.aoColumns[i].bVisible){
currentColumn = $(currentColumn).prev();
this.s.dt.aoColumns[i].sWidth = $(currentColumn).innerWidth() + "px";
}
}
}
}
//Update the internal storage of the table's width (in case we changed it because the user resized some column and scrollX was enabled
if(scrollXEnabled && $('div.dataTables_scrollHead', this.s.dt.nTableWrapper) != undefined){
if($('div.dataTables_scrollHead', this.s.dt.nTableWrapper).length > 0)
this.table_size = $($('div.dataTables_scrollHead', this.s.dt.nTableWrapper)[0].childNodes[0].childNodes[0]).width();
}
//Save the state
this.s.dt.oInstance.oApi._fnSaveState( this.s.dt );
}
///////////////////////////////////////////////////////
this.dom.resize = null;
},
/**
* 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:not(:eq('+that.s.mouse.targetIndex+'))', this).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.zIndex = 1200;
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 = "1.0.7";
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);
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