/*

 * http://datatables.net/media/blog/bootstrap_2/DT_bootstrap.js

 *

 * @copyright Copyright 2008-2012 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

 * 

 * 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

 */

/* Default class modification */

$.extend( $.fn.dataTableExt.oStdClasses, {

	"sWrapper": "dataTables_wrapper form-inline"

} );

/* API method to get paging information */

$.fn.dataTableExt.oApi.fnPagingInfo = function ( oSettings )

{

	return {

		"iStart":         oSettings._iDisplayStart,

		"iEnd":           oSettings.fnDisplayEnd(),

		"iLength":        oSettings._iDisplayLength,

		"iTotal":         oSettings.fnRecordsTotal(),

		"iFilteredTotal": oSettings.fnRecordsDisplay(),

		"iPage":          Math.ceil( oSettings._iDisplayStart / oSettings._iDisplayLength ),

		"iTotalPages":    Math.ceil( oSettings.fnRecordsDisplay() / oSettings._iDisplayLength )

	};

}

/* Bootstrap style pagination control */

$.extend( $.fn.dataTableExt.oPagination, {

	"bootstrap": {

		"fnInit": function( oSettings, nPaging, fnDraw ) {

			var oLang = oSettings.oLanguage.oPaginate;

			var fnClickHandler = function ( e ) {

				e.preventDefault();

				if ( oSettings.oApi._fnPageChange(oSettings, e.data.action) ) {

					fnDraw( oSettings );

				}

			};

			$(nPaging).addClass('pagination').append(

				'<ul>'+

					'<li class="prev disabled"><a href="#">&larr; '+oLang.sPrevious+'</a></li>'+

					'<li class="next disabled"><a href="#">'+oLang.sNext+' &rarr; </a></li>'+

				'</ul>'

			);

			var els = $('a', nPaging);

			$(els[0]).bind( 'click.DT', { action: "previous" }, fnClickHandler );

			$(els[1]).bind( 'click.DT', { action: "next" }, fnClickHandler );

		},

		"fnUpdate": function ( oSettings, fnDraw ) {

			var iListLength = 5;

			var oPaging = oSettings.oInstance.fnPagingInfo();

			var an = oSettings.aanFeatures.p;

			var i, j, sClass, iStart, iEnd, iHalf=Math.floor(iListLength/2);

			if ( oPaging.iTotalPages < iListLength) {

				iStart = 1;

				iEnd = oPaging.iTotalPages;

			}

			else if ( oPaging.iPage <= iHalf ) {

				iStart = 1;

				iEnd = iListLength;

			} else if ( oPaging.iPage >= (oPaging.iTotalPages-iHalf) ) {

				iStart = oPaging.iTotalPages - iListLength + 1;

				iEnd = oPaging.iTotalPages;

			} else {

				iStart = oPaging.iPage - iHalf + 1;

				iEnd = iStart + iListLength - 1;

			}

			for ( i=0, iLen=an.length ; i<iLen ; i++ ) {

				// Remove the middle elements

				$('li:gt(0)', an[i]).filter(':not(:last)').remove();

				// Add the new list items and their event handlers

				for ( j=iStart ; j<=iEnd ; j++ ) {

					sClass = (j==oPaging.iPage+1) ? 'class="active"' : '';

					$('<li '+sClass+'><a href="#">'+j+'</a></li>')

						.insertBefore( $('li:last', an[i])[0] )

						.bind('click', function (e) {

							e.preventDefault();

							oSettings._iDisplayStart = (parseInt($('a', this).text(),10)-1) * oPaging.iLength;

							fnDraw( oSettings );

						} );

				}

				// Add / remove disabled classes from the static elements

				if ( oPaging.iPage === 0 ) {

					$('li:first', an[i]).addClass('disabled');

				} else {

					$('li:first', an[i]).removeClass('disabled');

				}

				if ( oPaging.iPage === oPaging.iTotalPages-1 || oPaging.iTotalPages === 0 ) {

					$('li:last', an[i]).addClass('disabled');

				} else {

					$('li:last', an[i]).removeClass('disabled');

				}

			}

		}

	}

} );

/* Table initialisation */

$(document).ready(function() {

	$('#example').dataTable( {

		"sDom": "<'row'<'span6'l><'span6'f>r>t<'row'<'span6'i><'span6'p>>",

		"sPaginationType": "bootstrap",

		"oLanguage": {

			"sLengthMenu": "_MENU_ records per page"

		}

	} );

} );