/*! * tablesorter pager plugin * updated 2/20/2013 */ /*jshint browser:true, jquery:true, unused:false */ ;(function($) { "use strict"; /*jshint supernew:true */ $.extend({ tablesorterPager: new function() { this.defaults = { // target the pager markup container: null, // use this format: "http://mydatabase.com?page={page}&size={size}&{sortList:col}&{filterList:fcol}" // where {page} is replaced by the page number, {size} is replaced by the number of records to show, // {sortList:col} adds the sortList to the url into a "col" array, and {filterList:fcol} adds // the filterList to the url into an "fcol" array. // So a sortList = [[2,0],[3,0]] becomes "&col[2]=0&col[3]=0" in the url // and a filterList = [[2,Blue],[3,13]] becomes "&fcol[2]=Blue&fcol[3]=13" in the url ajaxUrl: null, // process ajax so that the following information is returned: // [ total_rows (number), rows (array of arrays), headers (array; optional) ] // example: // [ // 100, // total rows // [ // [ "row1cell1", "row1cell2", ... "row1cellN" ], // [ "row2cell1", "row2cell2", ... "row2cellN" ], // ... // [ "rowNcell1", "rowNcell2", ... "rowNcellN" ] // ], // [ "header1", "header2", ... "headerN" ] // optional // ] ajaxProcessing: function(ajax){ return [ 0, [], null ]; }, // output default: '{page}/{totalPages}' // possible variables: {page}, {totalPages}, {filteredPages}, {startRow}, {endRow}, {filteredRows} and {totalRows} output: '{startRow} to {endRow} of {totalRows} rows', // '{page}/{totalPages}' // apply disabled classname to the pager arrows when the rows at either extreme is visible updateArrows: true, // starting page of the pager (zero based index) page: 0, // Number of visible rows size: 10, // if true, the table will remain the same height no matter how many records are displayed. The space is made up by an empty // table row set to a height to compensate; default is false fixedHeight: false, // remove rows from the table to speed up the sort of large tables. // setting this to false, only hides the non-visible rows; needed if you plan to add/remove rows with the pager enabled. removeRows: false, // removing rows in larger tables speeds up the sort // css class names of pager arrows cssFirst: '.first', // go to first page arrow cssPrev: '.prev', // previous page arrow cssNext: '.next', // next page arrow cssLast: '.last', // go to last page arrow cssGoto: '.gotoPage', // go to page selector - select dropdown that sets the current page cssPageDisplay: '.pagedisplay', // location of where the "output" is displayed cssPageSize: '.pagesize', // page size selector - select dropdown that sets the "size" option cssErrorRow: 'tablesorter-errorRow', // error information row // class added to arrows when at the extremes (i.e. prev/first arrows are "disabled" when on the first page) cssDisabled: 'disabled', // Note there is no period "." in front of this class name // stuff not set by the user totalRows: 0, totalPages: 0, filteredRows: 0, filteredPages: 0 }; var $this = this, // hide arrows at extremes pagerArrows = function(c, disable) { var a = 'addClass', r = 'removeClass', d = c.cssDisabled, dis = !!disable, tp = Math.min( c.totalPages, c.filteredPages ); if ( c.updateArrows ) { $(c.cssFirst + ',' + c.cssPrev, c.container)[ ( dis || c.page === 0 ) ? a : r ](d); $(c.cssNext + ',' + c.cssLast, c.container)[ ( dis || c.page === tp - 1 ) ? a : r ](d); } }, updatePageDisplay = function(table, c) { var i, p, s, t, out, f = $(table).hasClass('hasFilters') && !c.ajaxUrl; c.filteredRows = (f) ? table.config.$tbodies.children('tr:not(.filtered,.remove-me)').length : c.totalRows; c.filteredPages = (f) ? Math.ceil( c.filteredRows / c.size ) : c.totalPages; if ( Math.min( c.totalPages, c.filteredPages ) > 0 ) { t = (c.size * c.page > c.filteredRows); c.startRow = (t) ? 1 : ( c.size * c.page ) + 1; c.page = (t) ? 0 : c.page; c.endRow = Math.min( c.filteredRows, c.totalRows, c.size * ( c.page + 1 ) ); out = $(c.cssPageDisplay, c.container); // form the output string s = c.output.replace(/\{(page|filteredRows|filteredPages|totalPages|startRow|endRow|totalRows)\}/gi, function(m){ return { '{page}' : c.page + 1, '{filteredRows}' : c.filteredRows, '{filteredPages}' : c.filteredPages, '{totalPages}' : c.totalPages, '{startRow}' : c.startRow, '{endRow}' : c.endRow, '{totalRows}' : c.totalRows }[m]; }); if (out[0]) { out[ (out[0].tagName === 'INPUT') ? 'val' : 'html' ](s); if ( $(c.cssGoto, c.container).length ) { t = ''; p = Math.min( c.totalPages, c.filteredPages ); for ( i = 1; i <= p; i++ ) { t += ''; } $(c.cssGoto, c.container).html(t).val(c.page + 1); } } } pagerArrows(c); if (c.initialized) { $(table).trigger('pagerComplete', c); } }, fixHeight = function(table, c) { var d, h, $b = $(table.tBodies[0]); if (c.fixedHeight) { $b.find('tr.pagerSavedHeightSpacer').remove(); h = $.data(table, 'pagerSavedHeight'); if (h) { d = h - $b.height(); if ( d > 5 && $.data(table, 'pagerLastSize') === c.size && $b.children('tr:visible').length < c.size ) { $b.append(''); } } } }, changeHeight = function(table, c) { var $b = $(table.tBodies[0]); $b.find('tr.pagerSavedHeightSpacer').remove(); $.data(table, 'pagerSavedHeight', $b.height()); fixHeight(table, c); $.data(table, 'pagerLastSize', c.size); }, hideRows = function(table, c){ if (!c.ajaxUrl) { var i, rows = $(table.tBodies).children('tr:not(.' + table.config.cssChildRow + ')'), l = rows.length, s = ( c.page * c.size ), e = s + c.size, j = 0; // size counter for ( i = 0; i < l; i++ ){ if (!/filtered/.test(rows[i].className)) { rows[i].style.display = ( j >= s && j < e ) ? '' : 'none'; j++; } } } }, hideRowsSetup = function(table, c){ c.size = parseInt( $(c.cssPageSize, c.container).find('option[selected]').val(), 10 ) || c.size; $.data(table, 'pagerLastSize', c.size); pagerArrows(c); if ( !c.removeRows ) { hideRows(table, c); $(table).bind('sortEnd.pager filterEnd.pager', function(){ hideRows(table, c); }); } }, renderAjax = function(data, table, c, exception){ // process data if ( typeof(c.ajaxProcessing) === "function" ) { // ajaxProcessing result: [ total, rows, headers ] var i, j, hsh, $f, $sh, $t = $(table), tc = table.config, hl = $t.find('thead th').length, tds = '', err = '' + (exception ? exception.message + ' (' + exception.name + ')' : 'No rows found') + '', result = c.ajaxProcessing(data) || [ 0, [] ], d = result[1] || [], l = d.length, th = result[2]; if ( l > 0 ) { for ( i = 0; i < l; i++ ) { tds += ''; for ( j = 0; j < d[i].length; j++ ) { // build tbody cells tds += '' + d[i][j] + ''; } tds += ''; } } // only add new header text if the length matches if ( th && th.length === hl ) { hsh = $t.hasClass('hasStickyHeaders'); $sh = $t.find('.' + ((tc.widgetOptions && tc.widgetOptions.stickyHeaders) || 'tablesorter-stickyheader')); $f = $t.find('tfoot tr:first').children(); $t.find('th.' + tc.cssHeader).each(function(j){ var $t = $(this), icn; // add new test within the first span it finds, or just in the header if ( $t.find('.' + tc.cssIcon).length ) { icn = $t.find('.' + tc.cssIcon).clone(true); $t.find('.tablesorter-header-inner').html( th[j] ).append(icn); if ( hsh && $sh.length ) { icn = $sh.find('th').eq(j).find('.' + tc.cssIcon).clone(true); $sh.find('th').eq(j).find('.tablesorter-header-inner').html( th[j] ).append(icn); } } else { $t.find('.tablesorter-header-inner').html( th[j] ); $sh.find('th').eq(j).find('.tablesorter-header-inner').html( th[j] ); } $f.eq(j).html( th[j] ); }); } $t.find('thead tr.' + c.cssErrorRow).remove(); // Clean up any previous error. if ( exception ) { // add error row to thead instead of tbody, or clicking on the header will result in a parser error $t.find('thead').append(err); } else { $(table.tBodies[0]).html( tds ); // add rows to first tbody } if (tc.showProcessing) { $.tablesorter.isProcessing(table); // remove loading icon } $t.trigger('update'); c.totalRows = result[0] || 0; c.totalPages = Math.ceil( c.totalRows / c.size ); updatePageDisplay(table, c); fixHeight(table, c); if (c.initialized) { $t.trigger('pagerChange', c); } } if (!c.initialized) { c.initialized = true; $(table).trigger('pagerInitialized', c); } }, getAjax = function(table, c){ var url = getAjaxUrl(table, c), tc = table.config; if ( url !== '' ) { if (tc.showProcessing) { $.tablesorter.isProcessing(table, true); // show loading icon } $(document).bind('ajaxError.pager', function(e, xhr, settings, exception) { if (settings.url === url) { renderAjax(null, table, c, exception); $(document).unbind('ajaxError.pager'); } }); $.getJSON(url, function(data) { renderAjax(data, table, c); $(document).unbind('ajaxError.pager'); }); } }, getAjaxUrl = function(table, c) { var url = (c.ajaxUrl) ? c.ajaxUrl.replace(/\{page\}/g, c.page).replace(/\{size\}/g, c.size) : '', sl = table.config.sortList, fl = c.currentFilters || [], sortCol = url.match(/\{sortList[\s+]?:[\s+]?([^}]*)\}/), filterCol = url.match(/\{filterList[\s+]?:[\s+]?([^}]*)\}/), arry = []; if (sortCol) { sortCol = sortCol[1]; $.each(sl, function(i,v){ arry.push(sortCol + '[' + v[0] + ']=' + v[1]); }); // if the arry is empty, just add the col parameter... "&{sortList:col}" becomes "&col" url = url.replace(/\{sortList[\s+]?:[\s+]?([^\}]*)\}/g, arry.length ? arry.join('&') : sortCol ); } if (filterCol) { filterCol = filterCol[1]; $.each(fl, function(i,v){ if (v) { arry.push(filterCol + '[' + i + ']=' + encodeURIComponent(v)); } }); // if the arry is empty, just add the fcol parameter... "&{filterList:fcol}" becomes "&fcol" url = url.replace(/\{filterList[\s+]?:[\s+]?([^\}]*)\}/g, arry.length ? arry.join('&') : filterCol ); } return url; }, renderTable = function(table, rows, c) { c.isDisabled = false; // needed because sorting will change the page and re-enable the pager var i, j, o, f = document.createDocumentFragment(), l = rows.length, s = ( c.page * c.size ), e = ( s + c.size ); if ( l < 1 ) { return; } // empty table, abort! if (c.initialized) { $(table).trigger('pagerChange', c); } if ( !c.removeRows ) { hideRows(table, c); } else { if ( e > rows.length ) { e = rows.length; } $(table.tBodies[0]).addClass('tablesorter-hidden'); $.tablesorter.clearTableBody(table); for ( i = s; i < e; i++ ) { o = rows[i]; l = o.length; for ( j = 0; j < l; j++ ) { f.appendChild(o[j]); } } table.tBodies[0].appendChild(f); $(table.tBodies[0]).removeClass('tablesorter-hidden'); } if ( c.page >= c.totalPages ) { moveToLastPage(table, c); } updatePageDisplay(table, c); if ( !c.isDisabled ) { fixHeight(table, c); } $(table).trigger('applyWidgets'); }, showAllRows = function(table, c){ if ( c.ajax ) { pagerArrows(c, true); } else { c.isDisabled = true; $.data(table, 'pagerLastPage', c.page); $.data(table, 'pagerLastSize', c.size); c.page = 0; c.size = c.totalRows; c.totalPages = 1; $('tr.pagerSavedHeightSpacer', table.tBodies[0]).remove(); renderTable(table, table.config.rowsCopy, c); } // disable size selector $(c.container).find(c.cssPageSize + ',' + c.cssGoto).each(function(){ $(this).addClass(c.cssDisabled)[0].disabled = true; }); }, moveToPage = function(table, c) { if ( c.isDisabled ) { return; } var p = Math.min( c.totalPages, c.filteredPages ); if ( c.page < 0 ) { c.page = 0; } if ( c.page > ( p - 1 ) && p !== 0 ) { c.page = p - 1; } if (c.ajax) { getAjax(table, c); } else if (!c.ajax) { renderTable(table, table.config.rowsCopy, c); } $.data(table, 'pagerLastPage', c.page); $.data(table, 'pagerUpdateTriggered', true); if (c.initialized) { $(table).trigger('pageMoved', c); } }, setPageSize = function(table, size, c) { c.size = size; $.data(table, 'pagerLastPage', c.page); $.data(table, 'pagerLastSize', c.size); c.totalPages = Math.ceil( c.totalRows / c.size ); moveToPage(table, c); }, moveToFirstPage = function(table, c) { c.page = 0; moveToPage(table, c); }, moveToLastPage = function(table, c) { c.page = ( Math.min( c.totalPages, c.filteredPages ) - 1 ); moveToPage(table, c); }, moveToNextPage = function(table, c) { c.page++; if ( c.page >= ( Math.min( c.totalPages, c.filteredPages ) - 1 ) ) { c.page = ( Math.min( c.totalPages, c.filteredPages ) - 1 ); } moveToPage(table, c); }, moveToPrevPage = function(table, c) { c.page--; if ( c.page <= 0 ) { c.page = 0; } moveToPage(table, c); }, destroyPager = function(table, c){ showAllRows(table, c); $(c.container).hide(); // hide pager table.config.appender = null; // remove pager appender function $(table).unbind('destroy.pager sortEnd.pager filterEnd.pager enable.pager disable.pager'); }, enablePager = function(table, c, triggered){ var p = $(c.cssPageSize, c.container).removeClass(c.cssDisabled).removeAttr('disabled'); $(c.container).find(c.cssGoto).removeClass(c.cssDisabled).removeAttr('disabled'); c.isDisabled = false; c.page = $.data(table, 'pagerLastPage') || c.page || 0; c.size = $.data(table, 'pagerLastSize') || parseInt(p.find('option[selected]').val(), 10) || c.size; p.val(c.size); // set page size c.totalPages = Math.ceil( Math.min( c.totalPages, c.filteredPages ) / c.size); if ( triggered ) { $(table).trigger('update'); setPageSize(table, c.size, c); hideRowsSetup(table, c); fixHeight(table, c); } }; $this.appender = function(table, rows) { var c = table.config.pager; if ( !c.ajax ) { table.config.rowsCopy = rows; c.totalRows = rows.length; c.size = $.data(table, 'pagerLastSize') || c.size; c.totalPages = Math.ceil(c.totalRows / c.size); renderTable(table, rows, c); } }; $this.construct = function(settings) { return this.each(function() { // check if tablesorter has initialized if (!(this.config && this.hasInitialized)) { return; } var t, ctrls, fxn, config = this.config, c = config.pager = $.extend( {}, $.tablesorterPager.defaults, settings ), table = this, tc = table.config, $t = $(table), pager = $(c.container).addClass('tablesorter-pager').show(); // added in case the pager is reinitialized after being destroyed. config.appender = $this.appender; $t .unbind('filterStart.pager filterEnd.pager sortEnd.pager disable.pager enable.pager destroy.pager update.pager pageSize.pager') .bind('filterStart.pager', function(e, filters) { $.data(table, 'pagerUpdateTriggered', false); c.currentFilters = filters; }) // update pager after filter widget completes .bind('filterEnd.pager sortEnd.pager', function(e) { //Prevent infinite event loops from occuring by setting this in all moveToPage calls and catching it here. if ($.data(table, 'pagerUpdateTriggered')) { $.data(table, 'pagerUpdateTriggered', false); return; } if (e.type === 'filterEnd') { c.page = 0; } moveToPage(table, c); updatePageDisplay(table, c); fixHeight(table, c); }) .bind('disable.pager', function(e){ e.stopPropagation(); showAllRows(table, c); }) .bind('enable.pager', function(e){ e.stopPropagation(); enablePager(table, c, true); }) .bind('destroy.pager', function(e){ e.stopPropagation(); destroyPager(table, c); }) .bind('update.pager', function(e){ e.stopPropagation(); hideRows(table, c); }) .bind('pageSize.pager', function(e,v){ e.stopPropagation(); c.size = parseInt(v, 10) || 10; hideRows(table, c); updatePageDisplay(table, c); }) .bind('pageSet.pager', function(e,v){ e.stopPropagation(); c.page = (parseInt(v, 10) || 1) - 1; moveToPage(table, c); updatePageDisplay(table, c); }); // clicked controls ctrls = [c.cssFirst, c.cssPrev, c.cssNext, c.cssLast]; fxn = [ moveToFirstPage, moveToPrevPage, moveToNextPage, moveToLastPage ]; pager.find(ctrls.join(',')) .unbind('click.pager') .bind('click.pager', function(e){ var i, $this = $(this), l = ctrls.length; if ( !$this.hasClass(c.cssDisabled) ) { for (i = 0; i < l; i++) { if ($this.is(ctrls[i])) { fxn[i](table, c); break; } } } return false; }); // goto selector if ( pager.find(c.cssGoto).length ) { pager.find(c.cssGoto) .unbind('change') .bind('change', function(){ c.page = $(this).val() - 1; moveToPage(table, c); }); updatePageDisplay(table, c); } // page size selector t = pager.find(c.cssPageSize); if ( t.length ) { t.unbind('change.pager').bind('change.pager', function() { t.val( $(this).val() ); // in case there are more than one pagers if ( !$(this).hasClass(c.cssDisabled) ) { setPageSize(table, parseInt( $(this).val(), 10 ), c); changeHeight(table, c); } return false; }); } // clear initialized flag c.initialized = false; // before initialization event $t.trigger('pagerBeforeInitialized', c); enablePager(table, c, false); if ( typeof(c.ajaxUrl) === 'string' ) { // ajax pager; interact with database c.ajax = true; //When filtering with ajax, allow only custom filtering function, disable default filtering since it will be done server side. tc.widgetOptions.filter_serversideFiltering = true; tc.serverSideSorting = true; moveToPage(table, c); } else { c.ajax = false; // Regular pager; all rows stored in memory $(this).trigger("appendCache", true); hideRowsSetup(table, c); } changeHeight(table, c); // pager initialized if (!c.ajax) { c.initialized = true; $(table).trigger('pagerInitialized', c); } }); }; }() }); // extend plugin scope $.fn.extend({ tablesorterPager: $.tablesorterPager.construct }); })(jQuery);