/*! * tablesorter pager plugin * updated 10/30/2013 */ /*jshint browser:true, jquery:true, unused:false */ ;(function($) { "use strict"; /*jshint supernew:true */ var ts = $.tablesorter; $.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, // modify the url after all processing has been applied customAjaxUrl: function(table, url) { return url; }, // modify the $.ajax object to allow complete control over your ajax requests ajaxObject: { dataType: 'json' }, // 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, // Save pager page & size if the storage script is loaded (requires $.tablesorter.storage in jquery.tablesorter.widgets.js) savePages: true, // 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, // count child rows towards the set page size? (set true if it is a visible table row within the pager) // if true, child row(s) may not appear to be attached to its parent row, may be split across pages or // may distort the table if rowspan or cellspans are included. countChildRows: 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, currentFilters: [], startRow: 0, endRow: 0, $size: null, last: {} }; var $this = this, // hide arrows at extremes pagerArrows = function(p, disable) { var a = 'addClass', r = 'removeClass', d = p.cssDisabled, dis = !!disable, tp = Math.min( p.totalPages, p.filteredPages ); if ( p.updateArrows ) { p.$container.find(p.cssFirst + ',' + p.cssPrev)[ ( dis || p.page === 0 ) ? a : r ](d); p.$container.find(p.cssNext + ',' + p.cssLast)[ ( dis || p.page === tp - 1 ) ? a : r ](d); } }, updatePageDisplay = function(table, p, flag) { var i, pg, s, out, c = table.config, f = c.$table.hasClass('hasFilters') && !p.ajaxUrl, t = (c.widgetOptions && c.widgetOptions.filter_filteredRow || 'filtered') + ',' + c.selectorRemove, sz = p.size || 10; // don't allow dividing by zero p.totalPages = Math.ceil( p.totalRows / sz ); // needed for "pageSize" method p.filteredRows = (f) ? c.$tbodies.eq(0).children('tr:not(.' + t + ')').length : p.totalRows; p.filteredPages = (f) ? Math.ceil( p.filteredRows / sz ) || 1 : p.totalPages; if ( Math.min( p.totalPages, p.filteredPages ) >= 0 ) { t = (p.size * p.page > p.filteredRows); p.startRow = (t) ? 1 : (p.filteredRows === 0 ? 0 : p.size * p.page + 1); p.page = (t) ? 0 : p.page; p.endRow = Math.min( p.filteredRows, p.totalRows, p.size * ( p.page + 1 ) ); out = p.$container.find(p.cssPageDisplay); // form the output string (can now get a new output string from the server) s = ( p.ajaxData && p.ajaxData.output ? p.ajaxData.output || p.output : p.output ) // {page} = one-based index; {page+#} = zero based index +/- value .replace(/\{page([\-+]\d+)?\}/gi, function(m,n){ return p.page + (n ? parseInt(n, 10) : 1); }) // {totalPages}, {extra}, {extra:0} (array) or {extra : key} (object) .replace(/\{\w+(\s*:\s*\w+)?\}/gi, function(m){ var t = m.replace(/[{}\s]/g,''), a = t.split(':'), d = p.ajaxData; return a.length > 1 && d && d[a[0]] ? d[a[0]][a[1]] : p[t] || (d ? d[t] : '') || ''; }); if (out.length) { out[ (out[0].tagName === 'INPUT') ? 'val' : 'html' ](s); if ( p.$goto.length ) { t = ''; pg = Math.min( p.totalPages, p.filteredPages ); for ( i = 1; i <= pg; i++ ) { t += ''; } p.$goto.html(t).val( p.page + 1 ); } } } pagerArrows(p); if (p.initialized && flag !== false) { c.$table.trigger('pagerComplete', p); // save pager info to storage if (p.savePages && ts.storage) { ts.storage(table, 'tablesorter-pager', { page : p.page, size : p.size }); } } }, fixHeight = function(table, p) { var d, h, c = table.config, $b = c.$tbodies.eq(0); if (p.fixedHeight) { $b.find('tr.pagerSavedHeightSpacer').remove(); h = $.data(table, 'pagerSavedHeight'); if (h) { d = h - $b.height(); if ( d > 5 && $.data(table, 'pagerLastSize') === p.size && $b.children('tr:visible').length < p.size ) { $b.append(''); } } } }, changeHeight = function(table, p) { var $b = table.config.$tbodies.eq(0); $b.find('tr.pagerSavedHeightSpacer').remove(); $.data(table, 'pagerSavedHeight', $b.height()); fixHeight(table, p); $.data(table, 'pagerLastSize', p.size); }, hideRows = function(table, p){ if (!p.ajaxUrl) { var i, c = table.config, rows = c.$tbodies.eq(0).children(), l = rows.length, s = ( p.page * p.size ), e = s + p.size, f = c.widgetOptions && c.widgetOptions.filter_filteredRow || 'filtered', j = 0; // size counter for ( i = 0; i < l; i++ ){ if ( !rows[i].className.match(f) ) { rows[i].style.display = ( j >= s && j < e ) ? '' : 'none'; // don't count child rows j += rows[i].className.match(c.cssChildRow + '|' + c.selectorRemove.slice(1)) && !p.countChildRows ? 0 : 1; } } } }, hideRowsSetup = function(table, p){ p.size = parseInt( p.$size.val(), 10 ) || p.size; $.data(table, 'pagerLastSize', p.size); pagerArrows(p); if ( !p.removeRows ) { hideRows(table, p); $(table).bind('sortEnd.pager filterEnd.pager', function(){ hideRows(table, p); }); } }, renderAjax = function(data, table, p, xhr, exception){ // process data if ( typeof(p.ajaxProcessing) === "function" ) { // ajaxProcessing result: [ total, rows, headers ] var i, j, hsh, $f, $sh, t, th, d, l, $err, rr_count, c = table.config, $t = c.$table, tds = '', result = p.ajaxProcessing(data, table) || [ 0, [] ], hl = $t.find('thead th').length; $t.find('thead tr.' + p.cssErrorRow).remove(); // Clean up any previous error. if ( exception ) { $err = $('' + ( xhr.status === 0 ? 'Not connected, verify Network' : xhr.status === 404 ? 'Requested page not found [404]' : xhr.status === 500 ? 'Internal Server Error [500]' : exception === 'parsererror' ? 'Requested JSON parse failed' : exception === 'timeout' ? 'Time out error' : exception === 'abort' ? 'Ajax Request aborted' : 'Uncaught error: ' + xhr.statusText + ' [' + xhr.status + ']' ) + '') .click(function(){ $(this).remove(); }) // add error row to thead instead of tbody, or clicking on the header will result in a parser error .appendTo( $t.find('thead:first') ); c.$tbodies.eq(0).empty(); } else { // process ajax object if (!$.isArray(result)) { p.ajaxData = result; p.totalRows = result.total; th = result.headers; d = result.rows; } else { // allow [ total, rows, headers ] or [ rows, total, headers ] t = isNaN(result[0]) && !isNaN(result[1]); //ensure a zero returned row count doesn't fail the logical || rr_count = result[t ? 1 : 0]; p.totalRows = isNaN(rr_count) ? p.totalRows || 0 : rr_count; d = result[t ? 0 : 1] || []; // row data th = result[2]; // headers } l = d.length; if (d instanceof jQuery) { // append jQuery object c.$tbodies.eq(0).empty().append(d); } else if (l) { // build table from array 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 += ''; } } // add rows to first tbody c.$tbodies.eq(0).html( tds ); } // only add new header text if the length matches if ( th && th.length === hl ) { hsh = $t.hasClass('hasStickyHeaders'); $sh = hsh ? c.$sticky.children('thead:first').children().children() : ''; $f = $t.find('tfoot tr:first').children(); // don't change td headers (may contain pager) c.$headers.filter('th').each(function(j){ var $t = $(this), icn; // add new test within the first span it finds, or just in the header if ( $t.find('.' + ts.css.icon).length ) { icn = $t.find('.' + ts.css.icon).clone(true); $t.find('.tablesorter-header-inner').html( th[j] ).append(icn); if ( hsh && $sh.length ) { icn = $sh.eq(j).find('.' + ts.css.icon).clone(true); $sh.eq(j).find('.tablesorter-header-inner').html( th[j] ).append(icn); } } else { $t.find('.tablesorter-header-inner').html( th[j] ); if (hsh && $sh.length) { $sh.eq(j).find('.tablesorter-header-inner').html( th[j] ); } } $f.eq(j).html( th[j] ); }); } } if (c.showProcessing) { ts.isProcessing(table); // remove loading icon } p.totalPages = Math.ceil( p.totalRows / ( p.size || 10 ) ); updatePageDisplay(table, p); fixHeight(table, p); if (p.initialized) { $t.trigger('pagerChange', p); $t.trigger('updateComplete'); } else { $t.trigger('update'); } } if (!p.initialized) { p.initialized = true; $(table).trigger('pagerInitialized', p); } }, getAjax = function(table, p){ var url = getAjaxUrl(table, p), $doc = $(document), c = table.config; if ( url !== '' ) { if (c.showProcessing) { ts.isProcessing(table, true); // show loading icon } $doc.bind('ajaxError.pager', function(e, xhr, settings, exception) { renderAjax(null, table, p, xhr, exception); $doc.unbind('ajaxError.pager'); }); p.ajaxObject.url = url; // from the ajaxUrl option and modified by customAjaxUrl p.ajaxObject.success = function(data) { renderAjax(data, table, p); $doc.unbind('ajaxError.pager'); if (typeof p.oldAjaxSuccess === 'function') { p.oldAjaxSuccess(data); } }; $.ajax(p.ajaxObject); } }, getAjaxUrl = function(table, p) { var url = (p.ajaxUrl) ? p.ajaxUrl // allow using "{page+1}" in the url string to switch to a non-zero based index .replace(/\{page([\-+]\d+)?\}/, function(s,n){ return p.page + (n ? parseInt(n, 10) : 0); }) .replace(/\{size\}/g, p.size) : '', sl = table.config.sortList, fl = p.currentFilters || [], sortCol = url.match(/\{\s*sort(?:List)?\s*:\s*(\w*)\s*\}/), filterCol = url.match(/\{\s*filter(?:List)?\s*:\s*(\w*)\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(/\{\s*sort(?:List)?\s*:\s*(\w*)\s*\}/g, arry.length ? arry.join('&') : sortCol ); arry = []; } 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(/\{\s*filter(?:List)?\s*:\s*(\w*)\s*\}/g, arry.length ? arry.join('&') : filterCol ); } if ( typeof(p.customAjaxUrl) === "function" ) { url = p.customAjaxUrl(table, url); } return url; }, renderTable = function(table, rows, p) { var i, $tb, l = rows && rows.length || 0, // rows may be undefined s = ( p.page * p.size ), e = ( s + p.size ); if ( l < 1 ) { return; } // empty table, abort! if ( p.page >= p.totalPages ) { // lets not render the table more than once moveToLastPage(table, p); } p.isDisabled = false; // needed because sorting will change the page and re-enable the pager if (p.initialized) { $(table).trigger('pagerChange', p); } if ( !p.removeRows ) { hideRows(table, p); } else { if ( e > rows.length ) { e = rows.length; } ts.clearTableBody(table); $tb = ts.processTbody(table, table.config.$tbodies.eq(0), true); for ( i = s; i < e; i++ ) { $tb.append(rows[i]); } ts.processTbody(table, $tb, false); } updatePageDisplay(table, p); if ( !p.isDisabled ) { fixHeight(table, p); } $(table).trigger('applyWidgets'); }, showAllRows = function(table, p){ if ( p.ajax ) { pagerArrows(p, true); } else { p.isDisabled = true; $.data(table, 'pagerLastPage', p.page); $.data(table, 'pagerLastSize', p.size); p.page = 0; p.size = p.totalRows; p.totalPages = 1; $(table).addClass('pagerDisabled').find('tr.pagerSavedHeightSpacer').remove(); renderTable(table, table.config.rowsCopy, p); } // disable size selector p.$size.add(p.$goto).each(function(){ $(this).addClass(p.cssDisabled)[0].disabled = true; }); }, moveToPage = function(table, p, flag) { if ( p.isDisabled ) { return; } var l = p.last, pg = Math.min( p.totalPages, p.filteredPages ); if ( p.page < 0 ) { p.page = 0; } if ( p.page > ( pg - 1 ) && pg !== 0 ) { p.page = pg - 1; } // don't allow rendering multiple times on the same page/size/totalpages/filters if (l.page === p.page && l.size === p.size && l.total === p.totalPages && l.filters === p.currentFilters ) { return; } p.last = { page : p.page, size : p.size, totalPages : p.totalPages, currentFilters : p.currentFilters }; if (p.ajax) { getAjax(table, p); } else if (!p.ajax) { renderTable(table, table.config.rowsCopy, p); } $.data(table, 'pagerLastPage', p.page); $.data(table, 'pagerUpdateTriggered', true); if (p.initialized && flag !== false) { $(table).trigger('pageMoved', p); } }, setPageSize = function(table, size, p) { p.size = size; p.$size.val(size); $.data(table, 'pagerLastPage', p.page); $.data(table, 'pagerLastSize', p.size); p.totalPages = Math.ceil( p.totalRows / ( p.size || 10 ) ); moveToPage(table, p); }, moveToFirstPage = function(table, p) { p.page = 0; moveToPage(table, p); }, moveToLastPage = function(table, p) { p.page = ( Math.min( p.totalPages, p.filteredPages ) - 1 ); moveToPage(table, p); }, moveToNextPage = function(table, p) { p.page++; if ( p.page >= ( Math.min( p.totalPages, p.filteredPages ) - 1 ) ) { p.page = ( Math.min( p.totalPages, p.filteredPages ) - 1 ); } moveToPage(table, p); }, moveToPrevPage = function(table, p) { p.page--; if ( p.page <= 0 ) { p.page = 0; } moveToPage(table, p); }, destroyPager = function(table, p){ showAllRows(table, p); p.$container.hide(); // hide pager table.config.appender = null; // remove pager appender function p.initialized = false; $(table).unbind('destroy.pager sortEnd.pager filterEnd.pager enable.pager disable.pager'); if (ts.storage) { ts.storage(table, 'tablesorter-pager', ''); } }, enablePager = function(table, p, triggered){ var pg = p.$size.removeClass(p.cssDisabled).removeAttr('disabled'); p.$goto.removeClass(p.cssDisabled).removeAttr('disabled'); p.isDisabled = false; p.page = $.data(table, 'pagerLastPage') || p.page || 0; p.size = $.data(table, 'pagerLastSize') || parseInt(pg.find('option[selected]').val(), 10) || p.size; pg.val(p.size); // set page size p.totalPages = Math.ceil( Math.min( p.totalPages, p.filteredPages ) / ( p.size || 10 ) ); if ( triggered ) { $(table).trigger('update'); setPageSize(table, p.size, p); hideRowsSetup(table, p); fixHeight(table, p); } }; $this.appender = function(table, rows) { var c = table.config, p = c.pager; if ( !p.ajax ) { c.rowsCopy = rows; p.totalRows = p.countChildRows ? c.$tbodies.eq(0).children().length : rows.length; p.size = $.data(table, 'pagerLastSize') || p.size; p.totalPages = Math.ceil( p.totalRows / ( p.size || 10 ) ); renderTable(table, rows, p); } }; $this.construct = function(settings) { return this.each(function() { // check if tablesorter has initialized if (!(this.config && this.hasInitialized)) { return; } var t, ctrls, fxn, table = this, c = table.config, p = c.pager = $.extend( {}, $.tablesorterPager.defaults, settings ), $t = c.$table, // added in case the pager is reinitialized after being destroyed. pager = p.$container = $(p.container).addClass('tablesorter-pager').show(); p.oldAjaxSuccess = p.oldAjaxSuccess || p.ajaxObject.success; c.appender = $this.appender; if (p.savePages && ts.storage) { t = ts.storage(table, 'tablesorter-pager') || {}; // fixes #387 p.page = isNaN(t.page) ? p.page : t.page; p.size = ( isNaN(t.size) ? p.size : t.size ) || 10; } $t .unbind('filterStart.pager filterEnd.pager sortEnd.pager disable.pager enable.pager destroy.pager update.pager pageSize.pager') .bind('filterStart.pager', function(e, filters) { $.data(table, 'pagerUpdateTriggered', false); p.currentFilters = filters; }) // update pager after filter widget completes .bind('filterEnd.pager sortEnd.pager', function(e) { //Prevent infinite event loops from occuring by setting this in all moveToPage calls and catching it here. if ($.data(table, 'pagerUpdateTriggered')) { $.data(table, 'pagerUpdateTriggered', false); return; } //only run the server side sorting if it has been enabled if (e.type === "filterEnd" || (e.type === "sortEnd" && c.serverSideSorting)) { moveToPage(table, p, false); } updatePageDisplay(table, p, false); fixHeight(table, p); }) .bind('disable.pager', function(e){ e.stopPropagation(); showAllRows(table, p); }) .bind('enable.pager', function(e){ e.stopPropagation(); enablePager(table, p, true); }) .bind('destroy.pager', function(e){ e.stopPropagation(); destroyPager(table, p); }) .bind('update.pager', function(e){ e.stopPropagation(); hideRows(table, p); }) .bind('pageSize.pager', function(e,v){ e.stopPropagation(); setPageSize(table, parseInt(v, 10) || 10, p); hideRows(table, p); updatePageDisplay(table, p, false); if (p.$size.length) { p.$size.val(p.size); } // twice? }) .bind('pageSet.pager', function(e,v){ e.stopPropagation(); p.page = (parseInt(v, 10) || 1) - 1; if (p.$goto.length) { p.$goto.val(p.size); } // twice? moveToPage(table, p); updatePageDisplay(table, p, false); }); // clicked controls ctrls = [ p.cssFirst, p.cssPrev, p.cssNext, p.cssLast ]; fxn = [ moveToFirstPage, moveToPrevPage, moveToNextPage, moveToLastPage ]; pager.find(ctrls.join(',')) .unbind('click.pager') .bind('click.pager', function(e){ var i, $t = $(this), l = ctrls.length; if ( !$t.hasClass(p.cssDisabled) ) { for (i = 0; i < l; i++) { if ($t.is(ctrls[i])) { fxn[i](table, p); break; } } } return false; }); // goto selector p.$goto = pager.find(p.cssGoto); if ( p.$goto.length ) { p.$goto .unbind('change') .bind('change', function(){ p.page = $(this).val() - 1; moveToPage(table, p); updatePageDisplay(table, p, false); }); } // page size selector p.$size = pager.find(p.cssPageSize); if ( p.$size.length ) { p.$size.unbind('change.pager').bind('change.pager', function() { p.$size.val( $(this).val() ); // in case there are more than one pagers if ( !$(this).hasClass(p.cssDisabled) ) { setPageSize(table, parseInt( $(this).val(), 10 ), p); changeHeight(table, p); } return false; }); } // clear initialized flag p.initialized = false; // before initialization event $t.trigger('pagerBeforeInitialized', p); enablePager(table, p, false); if ( typeof(p.ajaxUrl) === 'string' ) { // ajax pager; interact with database p.ajax = true; //When filtering with ajax, allow only custom filtering function, disable default filtering since it will be done server side. c.widgetOptions.filter_serversideFiltering = true; c.serverSideSorting = true; moveToPage(table, p); } else { p.ajax = false; // Regular pager; all rows stored in memory $(this).trigger("appendCache", true); hideRowsSetup(table, p); } changeHeight(table, p); // pager initialized if (!p.ajax) { p.initialized = true; $(table).trigger('pagerInitialized', p); } }); }; }() }); // extend plugin scope $.fn.extend({ tablesorterPager: $.tablesorterPager.construct }); })(jQuery);