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Plugins/sorting/file-size.js

97 lines
2.3 KiB
JavaScript

/*! © SpryMedia Ltd - datatables.net/license */
(function( factory ){
if ( typeof define === 'function' && define.amd ) {
// AMD
define( ['jquery', 'datatables.net'], function ( $ ) {
return factory( $, window, document );
} );
}
else if ( typeof exports === 'object' ) {
// CommonJS
var jq = require('jquery');
var cjsRequires = function (root, $) {
if ( ! $.fn.dataTable ) {
require('datatables.net')(root, $);
}
};
if (typeof window === 'undefined') {
module.exports = function (root, $) {
if ( ! root ) {
// CommonJS environments without a window global must pass a
// root. This will give an error otherwise
root = window;
}
if ( ! $ ) {
$ = jq( root );
}
cjsRequires( root, $ );
return factory( $, root, root.document );
};
}
else {
cjsRequires( window, jq );
module.exports = factory( jq, window, window.document );
}
}
else {
// Browser
factory( jQuery, window, document );
}
}(function( $, window, document, undefined ) {
'use strict';
var DataTable = $.fn.dataTable;
/**
* When dealing with computer file sizes, it is common to append a post fix
* such as B, KB, MB or GB to a string in order to easily denote the order of
* magnitude of the file size. This plug-in allows sorting to take these
* indicates of size into account.
*
* A counterpart type detection plug-in is also available.
*
* @name File size
* @summary Sort abbreviated file sizes correctly (8MB, 4KB, etc)
* @author Allan Jardine - datatables.net
*
* @example
* $('#example').DataTable( {
* columnDefs: [
* { type: 'file-size', targets: 0 }
* ]
* } );
*/
DataTable.ext.type.order['file-size-pre'] = function (data) {
if (data === null || data === '') {
return 0;
}
var matches = data.match(/^(\d+(?:\.\d+)?)\s*([a-z]+)/i);
var multipliers = {
b: 1,
bytes: 1,
kb: 1000,
kib: 1024,
mb: 1000000,
mib: 1048576,
gb: 1000000000,
gib: 1073741824,
tb: 1000000000000,
tib: 1099511627776,
pb: 1000000000000000,
pib: 1125899906842624,
};
if (matches) {
var multiplier = multipliers[matches[2].toLowerCase()];
return parseFloat(matches[1]) * multiplier;
}
return -1;
};
return DataTable;
}));