tablesorter/js/widgets/widget-pager.js

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2014-11-03 16:56:46 +00:00
/* Pager widget for TableSorter 11/3/2014 (v2.18.1) - requires jQuery 1.7+ */
/*jshint browser:true, jquery:true, unused:false */
;(function($){
"use strict";
var tsp,
ts = $.tablesorter;
ts.addWidget({
id: "pager",
priority: 55, // load pager after filter widget
options : {
// output default: '{page}/{totalPages}'
// possible variables: {page}, {totalPages}, {filteredPages}, {startRow}, {endRow}, {filteredRows} and {totalRows}
pager_output: '{startRow} to {endRow} of {totalRows} rows', // '{page}/{totalPages}'
// apply disabled classname to the pager arrows when the rows at either extreme is visible
pager_updateArrows: true,
// starting page of the pager (zero based index)
pager_startPage: 0,
// reset pager after filtering; set to desired page #
// set to false to not change page at filter start
pager_pageReset: 0,
// Number of visible rows
pager_size: 10,
// Number of options to include in the pager number selector
pager_maxOptionSize: 20,
// Save pager page & size if the storage script is loaded (requires $.tablesorter.storage in jquery.tablesorter.widgets.js)
pager_savePages: true,
//defines custom storage key
pager_storageKey: 'tablesorter-pager',
// 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
pager_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.
pager_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.
pager_removeRows: false, // removing rows in larger tables speeds up the sort
// 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
pager_ajaxUrl: null,
// modify the url after all processing has been applied
pager_customAjaxUrl: function(table, url) { return url; },
// modify the $.ajax object to allow complete control over your ajax requests
pager_ajaxObject: {
dataType: 'json'
},
// set this to false if you want to block ajax loading on init
pager_processAjaxOnInit: true,
// 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
// ]
pager_ajaxProcessing: function(ajax){ return [ 0, [], null ]; },
// css class names of pager arrows
pager_css: {
container : 'tablesorter-pager',
errorRow : 'tablesorter-errorRow', // error information row (don't include period at beginning)
disabled : 'disabled' // class added to arrows @ extremes (i.e. prev/first arrows "disabled" on first page)
},
// jQuery selectors
pager_selectors: {
container : '.pager', // target the pager markup
first : '.first', // go to first page arrow
prev : '.prev', // previous page arrow
next : '.next', // next page arrow
last : '.last', // go to last page arrow
gotoPage : '.gotoPage', // go to page selector - select dropdown that sets the current page
pageDisplay : '.pagedisplay', // location of where the "output" is displayed
pageSize : '.pagesize' // page size selector - select dropdown that sets the "size" option
}
},
init: function(table){
tsp.init(table);
},
// only update to complete sorter initialization
format: function(table, c){
if (!(c.pager && c.pager.initialized)){
return tsp.initComplete(table, c);
}
tsp.moveToPage(table, c.pager, false);
},
remove: function(table, c){
tsp.destroyPager(table, c);
}
});
/* pager widget functions */
tsp = ts.pager = {
init: function(table) {
// check if tablesorter has initialized
if (table.hasInitialized && table.config.pager.initialized) { return; }
var t,
c = table.config,
wo = c.widgetOptions,
s = wo.pager_selectors,
// save pager variables
p = c.pager = $.extend({
totalPages: 0,
filteredRows: 0,
filteredPages: 0,
currentFilters: [],
page: wo.pager_startPage,
startRow: 0,
endRow: 0,
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ajaxCounter: 0,
$size: null,
last: {}
}, c.pager);
// pager initializes multiple times before table has completed initialization
if (p.isInitializing) { return; }
p.isInitializing = true;
if (c.debug) {
ts.log('Pager initializing');
}
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p.size = $.data(table, 'pagerLastSize') || wo.pager_size;
// added in case the pager is reinitialized after being destroyed.
p.$container = $(s.container).addClass(wo.pager_css.container).show();
// goto selector
p.$goto = p.$container.find(s.gotoPage); // goto is a reserved word #657
// page size selector
p.$size = p.$container.find(s.pageSize);
p.totalRows = c.$tbodies.eq(0).children('tr').not( wo.pager_countChildRows ? '' : '.' + c.cssChildRow ).length;
p.oldAjaxSuccess = p.oldAjaxSuccess || wo.pager_ajaxObject.success;
c.appender = tsp.appender;
p.initializing = true;
if (wo.pager_savePages && ts.storage) {
t = ts.storage(table, wo.pager_storageKey) || {}; // fixes #387
p.page = isNaN(t.page) ? p.page : t.page;
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p.size = ( isNaN(t.size) ? p.size : t.size ) || 10;
$.data(table, 'pagerLastSize', p.size);
}
// skipped rows
p.regexRows = new RegExp('(' + (wo.filter_filteredRow || 'filtered') + '|' + c.selectorRemove.slice(1) + '|' + c.cssChildRow + ')');
// clear initialized flag
p.initialized = false;
// before initialization event
c.$table.trigger('pagerBeforeInitialized', c);
tsp.enablePager(table, c, false);
// p must have ajaxObject
p.ajaxObject = wo.pager_ajaxObject; // $.extend({}, wo.pager_ajaxObject );
p.ajaxObject.url = wo.pager_ajaxUrl;
if ( typeof(wo.pager_ajaxUrl) === 'string' ) {
// ajax pager; interact with database
p.ajax = true;
// When filtering with ajax, allow only custom filtering function, disable default filtering since it will be done server side.
wo.filter_serversideFiltering = true;
c.serverSideSorting = true;
tsp.moveToPage(table, p);
} else {
p.ajax = false;
// Regular pager; all rows stored in memory
c.$table.trigger("appendCache", [{}, true]);
}
},
initComplete: function(table, c){
var p = c.pager;
tsp.bindEvents(table, c);
tsp.setPageSize(table, 0, c); // page size 0 is ignored
if (!p.ajax) {
tsp.hideRowsSetup(table, c);
}
// pager initialized
p.initialized = true;
p.initializing = false;
p.isInitializing = false;
c.$table.trigger('pagerInitialized', c);
// filter widget not initialized; it will update the output display & fire off the pagerComplete event
if ( !( c.widgetOptions.filter_initialized && ts.hasWidget(table, 'filter') ) ) {
// if ajax, then don't fire off pagerComplete
tsp.updatePageDisplay(table, c, !p.ajax);
}
},
bindEvents: function(table, c){
var ctrls, fxn,
p = c.pager,
wo = c.widgetOptions,
s = wo.pager_selectors;
c.$table
.off('filterInit filterStart filterEnd sortEnd disable enable destroy updateComplete pageSize pageSet '.split(' ').join('.pager '))
.on('filterInit.pager filterStart.pager', function(e) {
p.currentFilters = c.$table.data('lastSearch');
// don't change page if filters are the same (pager updating, etc)
if (e.type === 'filterStart' && wo.pager_pageReset !== false && (c.lastCombinedFilter || '') !== (p.currentFilters || []).join('')) {
p.page = wo.pager_pageReset; // fixes #456 & #565
}
})
// update pager after filter widget completes
.on('filterEnd.pager sortEnd.pager', function() {
p.currentFilters = c.$table.data('lastSearch');
if (p.initialized || p.initializing) {
if (c.delayInit && c.rowsCopy && c.rowsCopy.length === 0) {
// make sure we have a copy of all table rows once the cache has been built
tsp.updateCache(table);
}
// tsp.moveToPage(table, p, false); <-- called when applyWidgets is triggered
c.$table.trigger('applyWidgets');
tsp.updatePageDisplay(table, c, false);
}
})
.on('disable.pager', function(e){
e.stopPropagation();
tsp.showAllRows(table, c);
})
.on('enable.pager', function(e){
e.stopPropagation();
tsp.enablePager(table, c, true);
})
.on('destroy.pager', function(e){
e.stopPropagation();
tsp.destroyPager(table, c);
})
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.on('updateComplete.pager', function(e, table, triggered){
e.stopPropagation();
// table can be unintentionally undefined in tablesorter v2.17.7 and earlier
if (!table || triggered) { return; }
var $rows = c.$tbodies.eq(0).children('tr').not(c.selectorRemove);
p.totalRows = $rows.length - ( wo.pager_countChildRows ? 0 : $rows.filter('.' + c.cssChildRow).length );
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p.totalPages = Math.ceil( p.totalRows / p.size );
if ($rows.length && c.rowsCopy && c.rowsCopy.length === 0) {
// make a copy of all table rows once the cache has been built
tsp.updateCache(table);
}
if ( p.page >= p.totalPages ) {
tsp.moveToLastPage(table, p);
}
tsp.hideRows(table, c);
tsp.changeHeight(table, c);
tsp.updatePageDisplay(table, c);
// make sure widgets are applied - fixes #450
c.$table.trigger('applyWidgets');
})
.on('pageSize.pager', function(e,v){
e.stopPropagation();
tsp.setPageSize(table, parseInt(v, 10) || 10, c);
tsp.hideRows(table, c);
tsp.updatePageDisplay(table, c, false);
if (p.$size.length) { p.$size.val(p.size); } // twice?
})
.on('pageSet.pager', function(e,v){
e.stopPropagation();
p.page = (parseInt(v, 10) || 1) - 1;
if (p.$goto.length) { p.$goto.val(c.size); } // twice?
tsp.moveToPage(table, p, true);
tsp.updatePageDisplay(table, c, false);
});
// clicked controls
ctrls = [ s.first, s.prev, s.next, s.last ];
fxn = [ 'moveToFirstPage', 'moveToPrevPage', 'moveToNextPage', 'moveToLastPage' ];
p.$container.find(ctrls.join(','))
.attr("tabindex", 0)
.off('click.pager')
.on('click.pager', function(e){
e.stopPropagation();
var i,
$c = $(this),
l = ctrls.length;
if ( !$c.hasClass(wo.pager_css.disabled) ) {
for (i = 0; i < l; i++) {
if ($c.is(ctrls[i])) {
tsp[fxn[i]](table, p);
break;
}
}
}
});
if ( p.$goto.length ) {
p.$goto
.off('change')
.on('change', function(){
p.page = $(this).val() - 1;
tsp.moveToPage(table, p, true);
tsp.updatePageDisplay(table, c, false);
});
}
if ( p.$size.length ) {
// setting an option as selected appears to cause issues with initial page size
p.$size.find('option').removeAttr('selected');
p.$size
.off('change.pager')
.on('change.pager', function() {
p.$size.val( $(this).val() ); // in case there are more than one pagers
if ( !$(this).hasClass(wo.pager_css.disabled) ) {
tsp.setPageSize(table, parseInt( $(this).val(), 10 ), c);
tsp.changeHeight(table, c);
}
return false;
});
}
},
// hide arrows at extremes
pagerArrows: function(c, disable) {
var p = c.pager,
dis = !!disable,
first = dis || p.page === 0,
tp = Math.min( p.totalPages, p.filteredPages ),
last = dis || p.page === tp - 1 || tp === 0,
wo = c.widgetOptions,
s = wo.pager_selectors;
if ( wo.pager_updateArrows ) {
p.$container.find(s.first + ',' + s.prev).toggleClass(wo.pager_css.disabled, first).attr('aria-disabled', first);
p.$container.find(s.next + ',' + s.last).toggleClass(wo.pager_css.disabled, last).attr('aria-disabled', last);
}
},
calcFilters: function(table, c) {
var wo = c.widgetOptions,
p = c.pager,
hasFilters = c.$table.hasClass('hasFilters');
if (hasFilters && !wo.pager_ajaxUrl) {
if ($.isEmptyObject(c.cache)) {
// delayInit: true so nothing is in the cache
p.filteredRows = p.totalRows = c.$tbodies.eq(0).children('tr').not( wo.pager_countChildRows ? '' : '.' + c.cssChildRow ).length;
} else {
p.filteredRows = 0;
$.each(c.cache[0].normalized, function(i, el) {
p.filteredRows += p.regexRows.test(el[c.columns].$row[0].className) ? 0 : 1;
});
}
} else if (!hasFilters) {
p.filteredRows = p.totalRows;
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}
},
updatePageDisplay: function(table, c, completed) {
if ( c.pager.initializing ) { return; }
var s, t, $out,
wo = c.widgetOptions,
p = c.pager,
sz = p.size || 10; // don't allow dividing by zero
if (wo.pager_countChildRows) { t.push(c.cssChildRow); }
p.$size.add(p.$goto).removeClass(wo.pager_css.disabled).removeAttr('disabled').attr('aria-disabled', 'false');
p.totalPages = Math.ceil( p.totalRows / sz ); // needed for "pageSize" method
c.totalRows = p.totalRows;
tsp.calcFilters(table, c);
c.filteredRows = p.filteredRows;
p.filteredPages = Math.ceil( p.filteredRows / sz ) || 0;
if ( Math.min( p.totalPages, p.filteredPages ) >= 0 ) {
t = (p.size * p.page > p.filteredRows) && completed;
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(wo.pager_selectors.pageDisplay);
// form the output string (can now get a new output string from the server)
s = ( p.ajaxData && p.ajaxData.output ? p.ajaxData.output || wo.pager_output : wo.pager_output )
// {page} = one-based index; {page+#} = zero based index +/- value
.replace(/\{page([\-+]\d+)?\}/gi, function(m,n){
return p.totalPages ? p.page + (n ? parseInt(n, 10) : 1) : 0;
})
// {totalPages}, {extra}, {extra:0} (array) or {extra : key} (object)
.replace(/\{\w+(\s*:\s*\w+)?\}/gi, function(m){
var len, indx,
str = m.replace(/[{}\s]/g,''),
extra = str.split(':'),
data = p.ajaxData,
// return zero for default page/row numbers
deflt = /(rows?|pages?)$/i.test(str) ? 0 : '';
if (/(startRow|page)/.test(extra[0]) && extra[1] === 'input') {
len = ('' + (extra[0] === 'page' ? p.totalPages : p.totalRows)).length;
indx = extra[0] === 'page' ? p.page + 1 : p.startRow;
return '<input type="text" class="ts-' + extra[0] + '" style="max-width:' + len + 'em" value="' + indx + '"/>';
}
return extra.length > 1 && data && data[extra[0]] ? data[extra[0]][extra[1]] : p[str] || (data ? data[str] : deflt) || deflt;
});
if ($out.length) {
$out[ ($out[0].tagName === 'INPUT') ? 'val' : 'html' ](s);
if ( p.$goto.length ) {
t = '';
$.each(tsp.buildPageSelect(p, c), function(i, opt){
t += '<option value="' + opt + '">' + opt + '</option>';
});
// innerHTML doesn't work in IE9 - http://support2.microsoft.com/kb/276228
p.$goto.html(t).val( p.page + 1 );
}
// rebind startRow/page inputs
$out.find('.ts-startRow, .ts-page').off('change').on('change', function(){
var v = $(this).val(),
pg = $(this).hasClass('ts-startRow') ? Math.floor( v/p.size ) + 1 : v;
c.$table.trigger('pageSet.pager', [ pg ]);
});
}
}
tsp.pagerArrows(c);
tsp.fixHeight(table, c);
if (p.initialized && completed !== false) {
c.$table.trigger('pagerComplete', c);
// save pager info to storage
if (wo.pager_savePages && ts.storage) {
ts.storage(table, wo.pager_storageKey, {
page : p.page,
size : p.size
});
}
}
},
buildPageSelect: function(p, c) {
// Filter the options page number link array if it's larger than 'pager_maxOptionSize'
// as large page set links will slow the browser on large dom inserts
var i, central_focus_size, focus_option_pages, insert_index, option_length, focus_length,
wo = c.widgetOptions,
pg = Math.min( p.totalPages, p.filteredPages ) || 1,
// make skip set size multiples of 5
skip_set_size = Math.ceil( ( pg / wo.pager_maxOptionSize ) / 5 ) * 5,
large_collection = pg > wo.pager_maxOptionSize,
current_page = p.page + 1,
start_page = skip_set_size,
end_page = pg - skip_set_size,
option_pages = [1],
// construct default options pages array
option_pages_start_page = (large_collection) ? skip_set_size : 1;
for ( i = option_pages_start_page; i <= pg; ) {
option_pages.push(i);
i = i + ( large_collection ? skip_set_size : 1 );
}
option_pages.push(pg);
if (large_collection) {
focus_option_pages = [];
// don't allow central focus size to be > 5 on either side of current page
central_focus_size = Math.max( Math.floor( wo.pager_maxOptionSize / skip_set_size ) - 1, 5 );
start_page = current_page - central_focus_size;
if (start_page < 1) { start_page = 1; }
end_page = current_page + central_focus_size;
if (end_page > pg) { end_page = pg; }
// construct an array to get a focus set around the current page
for (i = start_page; i <= end_page ; i++) {
focus_option_pages.push(i);
}
// keep unique values
option_pages = $.grep(option_pages, function(value, indx) {
return $.inArray(value, option_pages) === indx;
});
option_length = option_pages.length;
focus_length = focus_option_pages.length;
// make sure at all option_pages aren't replaced
if (option_length - focus_length > skip_set_size / 2 && option_length + focus_length > wo.pager_maxOptionSize ) {
insert_index = Math.floor(option_length / 2) - Math.floor(focus_length / 2);
Array.prototype.splice.apply(option_pages, [ insert_index, focus_length ]);
}
option_pages = option_pages.concat(focus_option_pages);
}
// keep unique values again
option_pages = $.grep(option_pages, function(value, indx) {
return $.inArray(value, option_pages) === indx;
})
.sort(function(a,b) { return a - b; });
return option_pages;
},
fixHeight: function(table, c) {
var d, h,
p = c.pager,
wo = c.widgetOptions,
$b = c.$tbodies.eq(0);
$b.find('tr.pagerSavedHeightSpacer').remove();
if (wo.pager_fixedHeight && !p.isDisabled) {
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('<tr class="pagerSavedHeightSpacer ' + c.selectorRemove.slice(1) + '" style="height:' + d + 'px;"></tr>');
}
}
}
},
changeHeight: function(table, c) {
var h, $b = c.$tbodies.eq(0);
$b.find('tr.pagerSavedHeightSpacer').remove();
if (!$b.children('tr:visible').length) {
$b.append('<tr class="pagerSavedHeightSpacer ' + c.selectorRemove.slice(1) + '"><td>&nbsp</td></tr>');
}
h = $b.children('tr').eq(0).height() * c.pager.size;
$.data(table, 'pagerSavedHeight', h);
tsp.fixHeight(table, c);
$.data(table, 'pagerLastSize', c.pager.size);
},
hideRows: function(table, c){
if (!c.widgetOptions.pager_ajaxUrl) {
var i,
lastIndex = 0,
p = c.pager,
wo = c.widgetOptions,
rows = c.$tbodies.eq(0).children('tr'),
l = rows.length,
s = ( p.page * p.size ),
e = s + p.size,
f = wo && wo.filter_filteredRow || 'filtered',
j = 0; // size counter
for ( i = 0; i < l; i++ ){
if ( !rows[i].className.match(f) ) {
if (j === s && rows[i].className.match(c.cssChildRow)) {
// hide child rows @ start of pager (if already visible)
rows[i].style.display = 'none';
} else {
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)) && !wo.pager_countChildRows ? 0 : 1;
if ( j === e && rows[i].style.display !== 'none' && rows[i].className.match(ts.css.cssHasChild) ) {
lastIndex = i;
}
}
}
}
// add any attached child rows to last row of pager. Fixes part of issue #396
if ( lastIndex > 0 && rows[lastIndex].className.match(ts.css.cssHasChild) ) {
while ( ++lastIndex < l && rows[lastIndex].className.match(c.cssChildRow) ) {
rows[lastIndex].style.display = '';
}
}
}
},
hideRowsSetup: function(table, c){
var p = c.pager;
p.size = parseInt( p.$size.val(), 10 ) || p.size;
$.data(table, 'pagerLastSize', p.size);
tsp.pagerArrows(c);
if ( !c.widgetOptions.pager_removeRows ) {
tsp.hideRows(table, c);
c.$table.on('sortEnd.pager filterEnd.pager', function(){
tsp.hideRows(table, c);
});
}
},
renderAjax: function(data, table, c, xhr, exception){
var p = c.pager,
wo = c.widgetOptions;
// process data
if ( $.isFunction(wo.pager_ajaxProcessing) ) {
// ajaxProcessing result: [ total, rows, headers ]
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var i, j, t, hsh, $f, $sh, th, d, l, rr_count,
$t = c.$table,
tds = '',
result = wo.pager_ajaxProcessing(data, table, xhr) || [ 0, [] ],
hl = $t.find('thead th').length;
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// Clean up any previous error.
ts.showError(table);
if ( exception ) {
if (c.debug) {
ts.log('Ajax Error', xhr, exception);
}
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ts.showError(table, exception.message + ' (' + xhr.status + ')');
c.$tbodies.eq(0).children('tr').detach();
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p.totalRows = 0;
} else {
// process ajax object
if (!$.isArray(result)) {
p.ajaxData = result;
c.totalRows = p.totalRows = result.total;
c.filteredRows = p.filteredRows = typeof result.filteredRows !== 'undefined' ? result.filteredRows : result.total;
th = result.headers;
d = result.rows;
} else {
// allow [ total, rows, headers ] or [ rows, total, headers ]
t = isNaN(result[0]) && !isNaN(result[1]);
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// ensure a zero returned row count doesn't fail the logical ||
rr_count = result[t ? 1 : 0];
p.totalRows = isNaN(rr_count) ? p.totalRows || 0 : rr_count;
// can't set filtered rows when returning an array
c.totalRows = c.filteredRows = p.filteredRows = p.totalRows;
d = p.totalRows === 0 ? [""] : result[t ? 0 : 1] || []; // row data
th = result[2]; // headers
}
l = d && d.length;
if (d instanceof jQuery) {
if (wo.pager_processAjaxOnInit) {
// append jQuery object
c.$tbodies.eq(0).children('tr').detach();
c.$tbodies.eq(0).append(d);
}
} else if (l) {
// build table from array
for ( i = 0; i < l; i++ ) {
tds += '<tr>';
for ( j = 0; j < d[i].length; j++ ) {
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// build tbody cells; watch for data containing HTML markup - see #434
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tds += /^\s*<td/.test(d[i][j]) ? $.trim(d[i][j]) : '<td>' + d[i][j] + '</td>';
}
tds += '</tr>';
}
// add rows to first tbody
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if (wo.pager_processAjaxOnInit) {
c.$tbodies.eq(0).html( tds );
}
}
wo.pager_processAjaxOnInit = true;
// only add new header text if the length matches
if ( th && th.length === hl ) {
hsh = $t.hasClass('hasStickyHeaders');
$sh = hsh ? wo.$sticky.children('thead:first').children('tr').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
}
// make sure last pager settings are saved, prevents multiple server side calls with
// the same parameters
p.totalPages = Math.ceil( p.totalRows / ( p.size || 10 ) );
p.last.totalRows = p.totalRows;
p.last.currentFilters = p.currentFilters;
p.last.sortList = (c.sortList || []).join(',');
p.initializing = false;
tsp.updatePageDisplay(table, c);
$t.trigger('updateCache', [function(){
if (p.initialized) {
// apply widgets after table has rendered & after a delay to prevent
// multiple applyWidget blocking code from blocking this trigger
setTimeout(function(){
$t
.trigger('applyWidgets')
.trigger('pagerChange', p);
}, 0);
}
}]);
}
if (!p.initialized) {
c.$table.trigger('applyWidgets');
}
},
getAjax: function(table, c){
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var counter,
url = tsp.getAjaxUrl(table, c),
$doc = $(document),
p = c.pager;
if ( url !== '' ) {
if (c.showProcessing) {
ts.isProcessing(table, true); // show loading icon
}
$doc.on('ajaxError.pager', function(e, xhr, settings, exception) {
tsp.renderAjax(null, table, c, xhr, exception);
$doc.off('ajaxError.pager');
});
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counter = ++p.ajaxCounter;
p.last.ajaxUrl = url; // remember processed url
p.ajaxObject.url = url; // from the ajaxUrl option and modified by customAjaxUrl
p.ajaxObject.success = function(data, status, jqxhr) {
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// Refuse to process old ajax commands that were overwritten by new ones - see #443
if (counter < p.ajaxCounter){
return;
}
tsp.renderAjax(data, table, c, jqxhr);
$doc.off('ajaxError.pager');
if (typeof p.oldAjaxSuccess === 'function') {
p.oldAjaxSuccess(data);
}
};
if (c.debug) {
ts.log('ajax initialized', p.ajaxObject);
}
$.ajax(p.ajaxObject);
}
},
getAjaxUrl: function(table, c) {
var p = c.pager,
wo = c.widgetOptions,
url = (wo.pager_ajaxUrl) ? wo.pager_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 = c.sortList,
fl = p.currentFilters || $(table).data('lastSearch') || [],
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 );
p.currentFilters = fl;
}
if ( $.isFunction(wo.pager_customAjaxUrl) ) {
url = wo.pager_customAjaxUrl(table, url);
}
if (c.debug) {
ts.log('Pager ajax url: ' + url);
}
return url;
},
renderTable: function(table, rows) {
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var $tb, index, count, added,
c = table.config,
p = c.pager,
wo = c.widgetOptions,
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f = c.$table.hasClass('hasFilters'),
l = rows && rows.length || 0, // rows may be undefined
s = ( p.page * p.size ),
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e = p.size;
if ( l < 1 ) {
if (c.debug) {
ts.log('Pager: no rows for pager to render');
}
// empty table, abort!
return;
}
if ( p.page >= p.totalPages ) {
// lets not render the table more than once
return tsp.moveToLastPage(table, p);
}
p.isDisabled = false; // needed because sorting will change the page and re-enable the pager
if (p.initialized) { c.$table.trigger('pagerChange', c); }
if ( !wo.pager_removeRows ) {
tsp.hideRows(table, c);
} else {
ts.clearTableBody(table);
$tb = ts.processTbody(table, c.$tbodies.eq(0), true);
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// not filtered, start from the calculated starting point (s)
// if filtered, start from zero
index = f ? 0 : s;
count = f ? 0 : s;
added = 0;
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while (added < e && index < rows.length) {
if (!f || !/filtered/.test(rows[index][0].className)){
count++;
if (count > s && added <= e) {
added++;
$tb.append(rows[index]);
}
}
index++;
}
ts.processTbody(table, $tb, false);
}
tsp.updatePageDisplay(table, c);
wo.pager_startPage = p.page;
wo.pager_size = p.size;
if (table.isUpdating) {
c.$table.trigger('updateComplete', [ table, true ]);
}
},
showAllRows: function(table, c){
var p = c.pager,
wo = c.widgetOptions;
if ( p.ajax ) {
tsp.pagerArrows(c, true);
} else {
p.isDisabled = true;
$.data(table, 'pagerLastPage', p.page);
$.data(table, 'pagerLastSize', p.size);
p.page = 0;
p.size = p.totalRows;
p.totalPages = 1;
c.$table
.addClass('pagerDisabled')
.removeAttr('aria-describedby')
.find('tr.pagerSavedHeightSpacer').remove();
tsp.renderTable(table, c.rowsCopy);
c.$table.trigger('applyWidgets');
if (c.debug) {
ts.log('pager disabled');
}
}
// disable size selector
p.$size.add(p.$goto).each(function(){
$(this).attr('aria-disabled', 'true').addClass(wo.pager_css.disabled)[0].disabled = true;
});
},
// updateCache if delayInit: true
// this is normally done by "appendToTable" function in the tablesorter core AFTER a sort
updateCache: function(table) {
var c = table.config,
p = c.pager;
c.$table.trigger('updateCache', [ function(){
if ( !$.isEmptyObject(table.config.cache) ) {
var i,
rows = [],
n = table.config.cache[0].normalized;
p.totalRows = n.length;
for (i = 0; i < p.totalRows; i++) {
rows.push(n[i][c.columns].$row);
}
c.rowsCopy = rows;
tsp.moveToPage(table, p, true);
// clear out last search to force an update
p.last.currentFilters = [' '];
}
} ]);
},
moveToPage: function(table, p, pageMoved) {
if ( p.isDisabled ) { return; }
if ( pageMoved !== false && p.initialized && $.isEmptyObject(table.config.cache)) {
return tsp.updateCache(table);
}
var pg, c = table.config,
wo = c.widgetOptions,
l = p.last;
// abort page move if the table has filters and has not been initialized
if (p.ajax && !wo.filter_initialized && ts.hasWidget(table, 'filter')) { return; }
tsp.calcFilters(table, c);
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; }
// fixes issue where one current filter is [] and the other is ['','',''],
// making the next if comparison think the filters as different. Fixes #202.
l.currentFilters = (l.currentFilters || []).join('') === '' ? [] : l.currentFilters;
p.currentFilters = (p.currentFilters || []).join('') === '' ? [] : p.currentFilters;
// don't allow rendering multiple times on the same page/size/totalRows/filters/sorts
if ( l.page === p.page && l.size === p.size && l.totalRows === p.totalRows &&
(l.currentFilters || []).join(',') === (p.currentFilters || []).join(',') &&
// check for ajax url changes see #730
(l.ajaxUrl || '') === (p.ajaxObject.url || '') &&
// & ajax url option changes (dynamically add/remove/rename sort & filter parameters)
(l.optAjaxUrl || '') === (wo.pager_ajaxUrl || '') &&
l.sortList === (c.sortList || []).join(',') ) {
return;
}
if (c.debug) {
ts.log('Pager changing to page ' + p.page);
}
p.last = {
page : p.page,
size : p.size,
// fixes #408; modify sortList otherwise it auto-updates
sortList : (c.sortList || []).join(','),
totalRows : p.totalRows,
currentFilters : p.currentFilters || [],
ajaxUrl : p.ajaxObject.url || '',
optAjaxUrl : wo.pager_ajaxUrl
};
if (p.ajax) {
tsp.getAjax(table, c);
} else if (!p.ajax) {
tsp.renderTable(table, c.rowsCopy);
}
$.data(table, 'pagerLastPage', p.page);
if (p.initialized && pageMoved !== false) {
c.$table
.trigger('pageMoved', c)
.trigger('applyWidgets');
if (!p.ajax && table.isUpdating) {
c.$table.trigger('updateComplete', [ table, true ]);
}
}
},
setPageSize: function(table, size, c) {
var p = c.pager;
p.size = size || p.size || 10;
p.$size.val(p.size);
$.data(table, 'pagerLastPage', p.page);
$.data(table, 'pagerLastSize', p.size);
p.totalPages = Math.ceil( p.totalRows / p.size );
p.filteredPages = Math.ceil( p.filteredRows / p.size );
tsp.moveToPage(table, p, true);
},
moveToFirstPage: function(table, p) {
p.page = 0;
tsp.moveToPage(table, p, true);
},
moveToLastPage: function(table, p) {
p.page = ( Math.min( p.totalPages, p.filteredPages ) - 1 );
tsp.moveToPage(table, p, true);
},
moveToNextPage: function(table, p) {
p.page++;
if ( p.page >= ( Math.min( p.totalPages, p.filteredPages ) - 1 ) ) {
p.page = ( Math.min( p.totalPages, p.filteredPages ) - 1 );
}
tsp.moveToPage(table, p, true);
},
moveToPrevPage: function(table, p) {
p.page--;
if ( p.page <= 0 ) {
p.page = 0;
}
tsp.moveToPage(table, p, true);
},
destroyPager: function(table, c){
var p = c.pager;
tsp.showAllRows(table, c);
p.$container.hide(); // hide pager
c.appender = null; // remove pager appender function
p.initialized = false;
delete table.config.rowsCopy;
c.$table.off('filterInit filterStart filterEnd sortEnd disable enable destroy updateComplete pageSize pageSet '.split(' ').join('.pager '));
if (ts.storage) {
ts.storage(table, c.widgetOptions.pager_storageKey, '');
}
},
enablePager: function(table, c, triggered){
var info, p = c.pager;
p.isDisabled = false;
p.page = $.data(table, 'pagerLastPage') || p.page || 0;
p.size = $.data(table, 'pagerLastSize') || parseInt(p.$size.find('option[selected]').val(), 10) || p.size || 10;
p.$size.val(p.size); // set page size
p.totalPages = Math.ceil( Math.min( p.totalRows, p.filteredRows ) / p.size );
c.$table.removeClass('pagerDisabled');
// if table id exists, include page display with aria info
if ( table.id ) {
info = table.id + '_pager_info';
p.$container.find(c.widgetOptions.pager_selectors.pageDisplay).attr('id', info);
c.$table.attr('aria-describedby', info);
}
tsp.changeHeight(table, c);
if ( triggered ) {
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c.$table.trigger('updateRows');
tsp.setPageSize(table, p.size, c);
tsp.hideRowsSetup(table, c);
if (c.debug) {
ts.log('pager enabled');
}
}
},
appender: function(table, rows) {
var c = table.config,
wo = c.widgetOptions,
p = c.pager;
if ( !p.ajax ) {
c.rowsCopy = rows;
p.totalRows = wo.pager_countChildRows ? c.$tbodies.eq(0).children('tr').length : rows.length;
p.size = $.data(table, 'pagerLastSize') || p.size || wo.pager_size || 10;
p.totalPages = Math.ceil( p.totalRows / p.size );
tsp.moveToPage(table, p);
// update display here in case all rows are removed
tsp.updatePageDisplay(table, c, false);
} else {
tsp.moveToPage(table, p, true);
}
}
};
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// see #486
ts.showError = function(table, message){
$(table).each(function(){
var $row,
c = this.config,
wo = c.widgetOptions,
errorRow = c.pager && c.pager.cssErrorRow || wo.pager_css && wo.pager_css.errorRow || 'tablesorter-errorRow';
2014-02-05 12:10:55 +00:00
if (c) {
if (typeof message === 'undefined') {
c.$table.find('thead').find(c.selectorRemove).remove();
} else {
$row = ( /tr\>/.test(message) ? $(message) : $('<tr><td colspan="' + c.columns + '">' + message + '</td></tr>') )
.click(function(){
$(this).remove();
})
// add error row to thead instead of tbody, or clicking on the header will result in a parser error
.appendTo( c.$table.find('thead:first') )
.addClass( errorRow + ' ' + c.selectorRemove.slice(1) )
2014-02-05 12:10:55 +00:00
.attr({
role : 'alert',
'aria-live' : 'assertive'
});
}
}
});
};
})(jQuery);