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/**
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* The built-in pagination functions provide either two buttons (forward / back)
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* or lots of buttons (forward, back, first, last and individual pages). This
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* plug-in meets the two in the middle providing navigation controls for
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* forward, back, first and last.
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*
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* DataTables has this ability built in using the `dt-string full` option of
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* the `dt-init pagingType` initialisation option. As such, this plug-in is
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* marked as deprecated.
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*
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* @name Four button navigation
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* @summary Display forward, back, first and last buttons.
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* @deprecated
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* @author [Allan Jardine](http://sprymedia.co.uk)
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*
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* @example
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* $(document).ready(function() {
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* $('#example').dataTable( {
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* "sPaginationType": "four_button"
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* } );
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* } );
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*/
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$.fn.dataTableExt.oPagination.four_button = {
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"fnInit": function ( oSettings, nPaging, fnCallbackDraw )
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{
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var nFirst = document.createElement( 'span' );
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var nPrevious = document.createElement( 'span' );
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var nNext = document.createElement( 'span' );
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var nLast = document.createElement( 'span' );
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nFirst.appendChild( document.createTextNode( oSettings.oLanguage.oPaginate.sFirst ) );
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nPrevious.appendChild( document.createTextNode( oSettings.oLanguage.oPaginate.sPrevious ) );
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nNext.appendChild( document.createTextNode( oSettings.oLanguage.oPaginate.sNext ) );
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nLast.appendChild( document.createTextNode( oSettings.oLanguage.oPaginate.sLast ) );
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nFirst.className = "paginate_button first";
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nPrevious.className = "paginate_button previous";
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nNext.className="paginate_button next";
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nLast.className = "paginate_button last";
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nPaging.appendChild( nFirst );
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nPaging.appendChild( nPrevious );
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nPaging.appendChild( nNext );
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nPaging.appendChild( nLast );
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$(nFirst).click( function () {
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oSettings.oApi._fnPageChange( oSettings, "first" );
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fnCallbackDraw( oSettings );
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} );
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$(nPrevious).click( function() {
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oSettings.oApi._fnPageChange( oSettings, "previous" );
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fnCallbackDraw( oSettings );
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} );
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$(nNext).click( function() {
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oSettings.oApi._fnPageChange( oSettings, "next" );
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fnCallbackDraw( oSettings );
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} );
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$(nLast).click( function() {
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oSettings.oApi._fnPageChange( oSettings, "last" );
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fnCallbackDraw( oSettings );
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} );
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/* Disallow text selection */
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$(nFirst).bind( 'selectstart', function () { return false; } );
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$(nPrevious).bind( 'selectstart', function () { return false; } );
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$(nNext).bind( 'selectstart', function () { return false; } );
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$(nLast).bind( 'selectstart', function () { return false; } );
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},
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"fnUpdate": function ( oSettings, fnCallbackDraw )
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{
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if ( !oSettings.aanFeatures.p )
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{
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return;
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}
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/* Loop over each instance of the pager */
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var an = oSettings.aanFeatures.p;
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for ( var i=0, iLen=an.length ; i<iLen ; i++ )
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{
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var buttons = an[i].getElementsByTagName('span');
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if ( oSettings._iDisplayStart === 0 )
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{
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buttons[0].className = "paginate_disabled_previous";
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buttons[1].className = "paginate_disabled_previous";
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}
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else
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{
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buttons[0].className = "paginate_enabled_previous";
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buttons[1].className = "paginate_enabled_previous";
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}
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if ( oSettings.fnDisplayEnd() == oSettings.fnRecordsDisplay() )
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{
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buttons[2].className = "paginate_disabled_next";
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buttons[3].className = "paginate_disabled_next";
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}
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else
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{
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buttons[2].className = "paginate_enabled_next";
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buttons[3].className = "paginate_enabled_next";
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}
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}
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}
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};
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