resources/src/mediawiki/mediawiki.util.js

   1 ( function ( mw, $ ) {
   2         'use strict';
   3
   4         /**
   5          * Utility library
   6          * @class mw.util
   7          * @singleton
   8          */
   9         var util = {
  10
  11                 /**
  12                  * Initialisation
  13                  * (don't call before document ready)
  14                  */
  15                 init: function () {
  16                         util.$content = ( function () {
  17                                 var i, l, $node, selectors;
  18
  19                                 selectors = [
  20                                         // The preferred standard is class "mw-body".
  21                                         // You may also use class "mw-body mw-body-primary" if you use
  22                                         // mw-body in multiple locations. Or class "mw-body-primary" if
  23                                         // you use mw-body deeper in the DOM.
  24                                         '.mw-body-primary',
  25                                         '.mw-body',
  26
  27                                         // If the skin has no such class, fall back to the parser output
  28                                         '#mw-content-text',
  29
  30                                         // Should never happen... well, it could if someone is not finished writing a
  31                                         // skin and has not yet inserted bodytext yet.
  32                                         'body'
  33                                 ];
  34
  35                                 for ( i = 0, l = selectors.length; i < l; i++ ) {
  36                                         $node = $( selectors[ i ] );
  37                                         if ( $node.length ) {
  38                                                 return $node.first();
  39                                         }
  40                                 }
  41
  42                                 // Preserve existing customized value in case it was preset
  43                                 return util.$content;
  44                         }() );
  45                 },
  46
  47                 /* Main body */
  48
  49                 /**
  50                  * Encode the string like PHP's rawurlencode
  51                  *
  52                  * @param {string} str String to be encoded.
  53                  */
  54                 rawurlencode: function ( str ) {
  55                         str = String( str );
  56                         return encodeURIComponent( str )
  57                                 .replace( /!/g, '%21' ).replace( /'/g, '%27' ).replace( /\(/g, '%28' )
  58                                 .replace( /\)/g, '%29' ).replace( /\*/g, '%2A' ).replace( /~/g, '%7E' );
  59                 },
  60
  61                 /**
  62                  * Encode the string like Sanitizer::escapeId in PHP
  63                  *
  64                  * @param {string} str String to be encoded.
  65                  */
  66                 escapeId: function ( str ) {
  67                         str = String( str );
  68                         return util.rawurlencode( str.replace( / /g, '_' ) )
  69                                 .replace( /%3A/g, ':' )
  70                                 .replace( /%/g, '.' );
  71                 },
  72
  73                 /**
  74                  * Encode page titles for use in a URL
  75                  *
  76                  * We want / and : to be included as literal characters in our title URLs
  77                  * as they otherwise fatally break the title.
  78                  *
  79                  * The others are decoded because we can, it's prettier and matches behaviour
  80                  * of `wfUrlencode` in PHP.
  81                  *
  82                  * @param {string} str String to be encoded.
  83                  */
  84                 wikiUrlencode: function ( str ) {
  85                         return util.rawurlencode( str )
  86                                 .replace( /%20/g, '_' )
  87                                 // wfUrlencode replacements
  88                                 .replace( /%3B/g, ';' )
  89                                 .replace( /%40/g, '@' )
  90                                 .replace( /%24/g, '$' )
  91                                 .replace( /%21/g, '!' )
  92                                 .replace( /%2A/g, '*' )
  93                                 .replace( /%28/g, '(' )
  94                                 .replace( /%29/g, ')' )
  95                                 .replace( /%2C/g, ',' )
  96                                 .replace( /%2F/g, '/' )
  97                                 .replace( /%7E/g, '~' )
  98                                 .replace( /%3A/g, ':' );
  99                 },
 100
 101                 /**
 102                  * Get the link to a page name (relative to `wgServer`),
 103                  *
 104                  * @param {string|null} [str=wgPageName] Page name
 105                  * @param {Object} [params] A mapping of query parameter names to values,
 106                  *  e.g. `{ action: 'edit' }`
 107                  * @return {string} Url of the page with name of `str`
 108                  */
 109                 getUrl: function ( str, params ) {
 110                         var titleFragmentStart,
 111                                 url,
 112                                 fragment = '',
 113                                 pageName = typeof str === 'string' ? str : mw.config.get( 'wgPageName' );
 114
 115                         // Find any fragment should one exist
 116                         if ( typeof str === 'string' ) {
 117                                 titleFragmentStart = pageName.indexOf( '#' );
 118                                 if ( titleFragmentStart !== -1 ) {
 119                                         fragment = pageName.slice( titleFragmentStart + 1 );
 120                                         // Exclude the fragment from the page name
 121                                         pageName = pageName.slice( 0, titleFragmentStart );
 122                                 }
 123                         }
 124
 125                         url = mw.config.get( 'wgArticlePath' ).replace( '$1', util.wikiUrlencode( pageName ) );
 126
 127                         // Add query string if necessary
 128                         if ( params && !$.isEmptyObject( params ) ) {
 129                                 url += ( url.indexOf( '?' ) !== -1 ? '&' : '?' ) + $.param( params );
 130                         }
 131
 132                         // Append the encoded fragment
 133                         if ( fragment.length > 0 ) {
 134                                 url += '#' + util.escapeId( fragment );
 135                         }
 136
 137                         return url;
 138                 },
 139
 140                 /**
 141                  * Get address to a script in the wiki root.
 142                  * For index.php use `mw.config.get( 'wgScript' )`.
 143                  *
 144                  * @since 1.18
 145                  * @param {string} str Name of script (e.g. 'api'), defaults to 'index'
 146                  * @return {string} Address to script (e.g. '/w/api.php' )
 147                  */
 148                 wikiScript: function ( str ) {
 149                         str = str || 'index';
 150                         if ( str === 'index' ) {
 151                                 return mw.config.get( 'wgScript' );
 152                         } else if ( str === 'load' ) {
 153                                 return mw.config.get( 'wgLoadScript' );
 154                         } else {
 155                                 return mw.config.get( 'wgScriptPath' ) + '/' + str + '.php';
 156                         }
 157                 },
 158
 159                 /**
 160                  * Append a new style block to the head and return the CSSStyleSheet object.
 161                  * Use .ownerNode to access the `<style>` element, or use mw.loader#addStyleTag.
 162                  * This function returns the styleSheet object for convience (due to cross-browsers
 163                  * difference as to where it is located).
 164                  *
 165                  *     var sheet = mw.util.addCSS( '.foobar { display: none; }' );
 166                  *     $( foo ).click( function () {
 167                  *         // Toggle the sheet on and off
 168                  *         sheet.disabled = !sheet.disabled;
 169                  *     } );
 170                  *
 171                  * @param {string} text CSS to be appended
 172                  * @return {CSSStyleSheet} Use .ownerNode to get to the `<style>` element.
 173                  */
 174                 addCSS: function ( text ) {
 175                         var s = mw.loader.addStyleTag( text );
 176                         return s.sheet || s.styleSheet || s;
 177                 },
 178
 179                 /**
 180                  * Grab the URL parameter value for the given parameter.
 181                  * Returns null if not found.
 182                  *
 183                  * @param {string} param The parameter name.
 184                  * @param {string} [url=location.href] URL to search through, defaulting to the current browsing location.
 185                  * @return {Mixed} Parameter value or null.
 186                  */
 187                 getParamValue: function ( param, url ) {
 188                         if ( url === undefined ) {
 189                                 url = location.href;
 190                         }
 191                         // Get last match, stop at hash
 192                         var     re = new RegExp( '^[^#]*[&?]' + mw.RegExp.escape( param ) + '=([^&#]*)' ),
 193                                 m = re.exec( url );
 194                         if ( m ) {
 195                                 // Beware that decodeURIComponent is not required to understand '+'
 196                                 // by spec, as encodeURIComponent does not produce it.
 197                                 return decodeURIComponent( m[ 1 ].replace( /\+/g, '%20' ) );
 198                         }
 199                         return null;
 200                 },
 201
 202                 /**
 203                  * The content wrapper of the skin (e.g. `.mw-body`).
 204                  *
 205                  * Populated on document ready by #init. To use this property,
 206                  * wait for `$.ready` and be sure to have a module depedendency on
 207                  * `mediawiki.util` and `mediawiki.page.startup` which will ensure
 208                  * your document ready handler fires after #init.
 209                  *
 210                  * Because of the lazy-initialised nature of this property,
 211                  * you're discouraged from using it.
 212                  *
 213                  * If you need just the wikipage content (not any of the
 214                  * extra elements output by the skin), use `$( '#mw-content-text' )`
 215                  * instead. Or listen to mw.hook#wikipage_content which will
 216                  * allow your code to re-run when the page changes (e.g. live preview
 217                  * or re-render after ajax save).
 218                  *
 219                  * @property {jQuery}
 220                  */
 221                 $content: null,
 222
 223                 /**
 224                  * Add a link to a portlet menu on the page, such as:
 225                  *
 226                  * p-cactions (Content actions), p-personal (Personal tools),
 227                  * p-navigation (Navigation), p-tb (Toolbox)
 228                  *
 229                  * The first three parameters are required, the others are optional and
 230                  * may be null. Though providing an id and tooltip is recommended.
 231                  *
 232                  * By default the new link will be added to the end of the list. To
 233                  * add the link before a given existing item, pass the DOM node
 234                  * (e.g. `document.getElementById( 'foobar' )`) or a jQuery-selector
 235                  * (e.g. `'#foobar'`) for that item.
 236                  *
 237                  *     mw.util.addPortletLink(
 238                  *         'p-tb', 'http://mediawiki.org/',
 239                  *         'MediaWiki.org', 't-mworg', 'Go to MediaWiki.org ', 'm', '#t-print'
 240                  *     );
 241                  *
 242                  * @param {string} portlet ID of the target portlet ( 'p-cactions' or 'p-personal' etc.)
 243                  * @param {string} href Link URL
 244                  * @param {string} text Link text
 245                  * @param {string} [id] ID of the new item, should be unique and preferably have
 246                  *  the appropriate prefix ( 'ca-', 'pt-', 'n-' or 't-' )
 247                  * @param {string} [tooltip] Text to show when hovering over the link, without accesskey suffix
 248                  * @param {string} [accesskey] Access key to activate this link (one character, try
 249                  *  to avoid conflicts. Use `$( '[accesskey=x]' ).get()` in the console to
 250                  *  see if 'x' is already used.
 251                  * @param {HTMLElement|jQuery|string} [nextnode] Element or jQuery-selector string to the item that
 252                  *  the new item should be added before, should be another item in the same
 253                  *  list, it will be ignored otherwise
 254                  *
 255                  * @return {HTMLElement|null} The added element (a ListItem or Anchor element,
 256                  * depending on the skin) or null if no element was added to the document.
 257                  */
 258                 addPortletLink: function ( portlet, href, text, id, tooltip, accesskey, nextnode ) {
 259                         var $item, $link, $portlet, $ul;
 260
 261                         // Check if there's at least 3 arguments to prevent a TypeError
 262                         if ( arguments.length < 3 ) {
 263                                 return null;
 264                         }
 265                         // Setup the anchor tag
 266                         $link = $( '<a>' ).attr( 'href', href ).text( text );
 267                         if ( tooltip ) {
 268                                 $link.attr( 'title', tooltip );
 269                         }
 270
 271                         // Select the specified portlet
 272                         $portlet = $( '#' + portlet );
 273                         if ( $portlet.length === 0 ) {
 274                                 return null;
 275                         }
 276                         // Select the first (most likely only) unordered list inside the portlet
 277                         $ul = $portlet.find( 'ul' ).eq( 0 );
 278
 279                         // If it didn't have an unordered list yet, create it
 280                         if ( $ul.length === 0 ) {
 281
 282                                 $ul = $( '<ul>' );
 283
 284                                 // If there's no <div> inside, append it to the portlet directly
 285                                 if ( $portlet.find( 'div:first' ).length === 0 ) {
 286                                         $portlet.append( $ul );
 287                                 } else {
 288                                         // otherwise if there's a div (such as div.body or div.pBody)
 289                                         // append the <ul> to last (most likely only) div
 290                                         $portlet.find( 'div' ).eq( -1 ).append( $ul );
 291                                 }
 292                         }
 293                         // Just in case..
 294                         if ( $ul.length === 0 ) {
 295                                 return null;
 296                         }
 297
 298                         // Unhide portlet if it was hidden before
 299                         $portlet.removeClass( 'emptyPortlet' );
 300
 301                         // Wrap the anchor tag in a list item (and a span if $portlet is a Vector tab)
 302                         // and back up the selector to the list item
 303                         if ( $portlet.hasClass( 'vectorTabs' ) ) {
 304                                 $item = $link.wrap( '<li><span></span></li>' ).parent().parent();
 305                         } else {
 306                                 $item = $link.wrap( '<li></li>' ).parent();
 307                         }
 308
 309                         // Implement the properties passed to the function
 310                         if ( id ) {
 311                                 $item.attr( 'id', id );
 312                         }
 313
 314                         if ( accesskey ) {
 315                                 $link.attr( 'accesskey', accesskey );
 316                         }
 317
 318                         if ( tooltip ) {
 319                                 $link.attr( 'title', tooltip );
 320                         }
 321
 322                         if ( nextnode ) {
 323                                 // Case: nextnode is a DOM element (was the only option before MW 1.17, in wikibits.js)
 324                                 // Case: nextnode is a CSS selector for jQuery
 325                                 if ( nextnode.nodeType || typeof nextnode === 'string' ) {
 326                                         nextnode = $ul.find( nextnode );
 327                                 } else if ( !nextnode.jquery ) {
 328                                         // Error: Invalid nextnode
 329                                         nextnode = undefined;
 330                                 }
 331                                 if ( nextnode && ( nextnode.length !== 1 || nextnode[ 0 ].parentNode !== $ul[ 0 ] ) ) {
 332                                         // Error: nextnode must resolve to a single node
 333                                         // Error: nextnode must have the associated <ul> as its parent
 334                                         nextnode = undefined;
 335                                 }
 336                         }
 337
 338                         // Case: nextnode is a jQuery-wrapped DOM element
 339                         if ( nextnode ) {
 340                                 nextnode.before( $item );
 341                         } else {
 342                                 // Fallback (this is the default behavior)
 343                                 $ul.append( $item );
 344                         }
 345
 346                         // Update tooltip for the access key after inserting into DOM
 347                         // to get a localized access key label (bug 67946).
 348                         $link.updateTooltipAccessKeys();
 349
 350                         return $item[ 0 ];
 351                 },
 352
 353                 /**
 354                  * Validate a string as representing a valid e-mail address
 355                  * according to HTML5 specification. Please note the specification
 356                  * does not validate a domain with one character.
 357                  *
 358                  * FIXME: should be moved to or replaced by a validation module.
 359                  *
 360                  * @param {string} mailtxt E-mail address to be validated.
 361                  * @return {boolean|null} Null if `mailtxt` was an empty string, otherwise true/false
 362                  * as determined by validation.
 363                  */
 364                 validateEmail: function ( mailtxt ) {
 365                         var rfc5322Atext, rfc1034LdhStr, html5EmailRegexp;
 366
 367                         if ( mailtxt === '' ) {
 368                                 return null;
 369                         }
 370
 371                         // HTML5 defines a string as valid e-mail address if it matches
 372                         // the ABNF:
 373                         //     1 * ( atext / "." ) "@" ldh-str 1*( "." ldh-str )
 374                         // With:
 375                         // - atext   : defined in RFC 5322 section 3.2.3
 376                         // - ldh-str : defined in RFC 1034 section 3.5
 377                         //
 378                         // (see STD 68 / RFC 5234 http://tools.ietf.org/html/std68)
 379                         // First, define the RFC 5322 'atext' which is pretty easy:
 380                         // atext = ALPHA / DIGIT / ; Printable US-ASCII
 381                         //     "!" / "#" /    ; characters not including
 382                         //     "$" / "%" /    ; specials. Used for atoms.
 383                         //     "&" / "'" /
 384                         //     "*" / "+" /
 385                         //     "-" / "/" /
 386                         //     "=" / "?" /
 387                         //     "^" / "_" /
 388                         //     "`" / "{" /
 389                         //     "|" / "}" /
 390                         //     "~"
 391                         rfc5322Atext = 'a-z0-9!#$%&\'*+\\-/=?^_`{|}~';
 392
 393                         // Next define the RFC 1034 'ldh-str'
 394                         //     <domain> ::= <subdomain> | " "
 395                         //     <subdomain> ::= <label> | <subdomain> "." <label>
 396                         //     <label> ::= <letter> [ [ <ldh-str> ] <let-dig> ]
 397                         //     <ldh-str> ::= <let-dig-hyp> | <let-dig-hyp> <ldh-str>
 398                         //     <let-dig-hyp> ::= <let-dig> | "-"
 399                         //     <let-dig> ::= <letter> | <digit>
 400                         rfc1034LdhStr = 'a-z0-9\\-';
 401
 402                         html5EmailRegexp = new RegExp(
 403                                 // start of string
 404                                 '^'
 405                                 +
 406                                 // User part which is liberal :p
 407                                 '[' + rfc5322Atext + '\\.]+'
 408                                 +
 409                                 // 'at'
 410                                 '@'
 411                                 +
 412                                 // Domain first part
 413                                 '[' + rfc1034LdhStr + ']+'
 414                                 +
 415                                 // Optional second part and following are separated by a dot
 416                                 '(?:\\.[' + rfc1034LdhStr + ']+)*'
 417                                 +
 418                                 // End of string
 419                                 '$',
 420                                 // RegExp is case insensitive
 421                                 'i'
 422                         );
 423                         return ( mailtxt.match( html5EmailRegexp ) !== null );
 424                 },
 425
 426                 /**
 427                  * Note: borrows from IP::isIPv4
 428                  *
 429                  * @param {string} address
 430                  * @param {boolean} allowBlock
 431                  * @return {boolean}
 432                  */
 433                 isIPv4Address: function ( address, allowBlock ) {
 434                         if ( typeof address !== 'string' ) {
 435                                 return false;
 436                         }
 437
 438                         var     block = allowBlock ? '(?:\\/(?:3[0-2]|[12]?\\d))?' : '',
 439                                 RE_IP_BYTE = '(?:25[0-5]|2[0-4][0-9]|1[0-9][0-9]|0?[0-9]?[0-9])',
 440                                 RE_IP_ADD = '(?:' + RE_IP_BYTE + '\\.){3}' + RE_IP_BYTE;
 441
 442                         return address.search( new RegExp( '^' + RE_IP_ADD + block + '$' ) ) !== -1;
 443                 },
 444
 445                 /**
 446                  * Note: borrows from IP::isIPv6
 447                  *
 448                  * @param {string} address
 449                  * @param {boolean} allowBlock
 450                  * @return {boolean}
 451                  */
 452                 isIPv6Address: function ( address, allowBlock ) {
 453                         if ( typeof address !== 'string' ) {
 454                                 return false;
 455                         }
 456
 457                         var     block = allowBlock ? '(?:\\/(?:12[0-8]|1[01][0-9]|[1-9]?\\d))?' : '',
 458                                 RE_IPV6_ADD =
 459                         '(?:' + // starts with "::" (including "::")
 460                         ':(?::|(?::' + '[0-9A-Fa-f]{1,4}' + '){1,7})' +
 461                         '|' + // ends with "::" (except "::")
 462                         '[0-9A-Fa-f]{1,4}' + '(?::' + '[0-9A-Fa-f]{1,4}' + '){0,6}::' +
 463                         '|' + // contains no "::"
 464                         '[0-9A-Fa-f]{1,4}' + '(?::' + '[0-9A-Fa-f]{1,4}' + '){7}' +
 465                         ')';
 466
 467                         if ( address.search( new RegExp( '^' + RE_IPV6_ADD + block + '$' ) ) !== -1 ) {
 468                                 return true;
 469                         }
 470
 471                         RE_IPV6_ADD = // contains one "::" in the middle (single '::' check below)
 472                                 '[0-9A-Fa-f]{1,4}' + '(?:::?' + '[0-9A-Fa-f]{1,4}' + '){1,6}';
 473
 474                         return address.search( new RegExp( '^' + RE_IPV6_ADD + block + '$' ) ) !== -1
 475                                 && address.search( /::/ ) !== -1 && address.search( /::.*::/ ) === -1;
 476                 },
 477
 478                 /**
 479                  * Check whether a string is an IP address
 480                  *
 481                  * @since 1.25
 482                  * @param {string} address String to check
 483                  * @param {boolean} allowBlock True if a block of IPs should be allowed
 484                  * @return {boolean}
 485                  */
 486                 isIPAddress: function ( address, allowBlock ) {
 487                         return util.isIPv4Address( address, allowBlock ) ||
 488                                 util.isIPv6Address( address, allowBlock );
 489                 }
 490         };
 491
 492         /**
 493          * @method wikiGetlink
 494          * @inheritdoc #getUrl
 495          * @deprecated since 1.23 Use #getUrl instead.
 496          */
 497         mw.log.deprecate( util, 'wikiGetlink', util.getUrl, 'Use mw.util.getUrl instead.' );
 498
 499         /**
 500          * Access key prefix. Might be wrong for browsers implementing the accessKeyLabel property.
 501          * @property {string} tooltipAccessKeyPrefix
 502          * @deprecated since 1.24 Use the module jquery.accessKeyLabel instead.
 503          */
 504         mw.log.deprecate( util, 'tooltipAccessKeyPrefix', $.fn.updateTooltipAccessKeys.getAccessKeyPrefix(), 'Use jquery.accessKeyLabel instead.' );
 505
 506         /**
 507          * Regex to match accesskey tooltips.
 508          *
 509          * Should match:
 510          *
 511          * - "[ctrl-option-x]"
 512          * - "[alt-shift-x]"
 513          * - "[ctrl-alt-x]"
 514          * - "[ctrl-x]"
 515          *
 516          * The accesskey is matched in group $6.
 517          *
 518          * Will probably not work for browsers implementing the accessKeyLabel property.
 519          *
 520          * @property {RegExp} tooltipAccessKeyRegexp
 521          * @deprecated since 1.24 Use the module jquery.accessKeyLabel instead.
 522          */
 523         mw.log.deprecate( util, 'tooltipAccessKeyRegexp', /\[(ctrl-)?(option-)?(alt-)?(shift-)?(esc-)?(.)\]$/, 'Use jquery.accessKeyLabel instead.' );
 524
 525         /**
 526          * Add the appropriate prefix to the accesskey shown in the tooltip.
 527          *
 528          * If the `$nodes` parameter is given, only those nodes are updated;
 529          * otherwise, depending on browser support, we update either all elements
 530          * with accesskeys on the page or a bunch of elements which are likely to
 531          * have them on core skins.
 532          *
 533          * @method updateTooltipAccessKeys
 534          * @param {Array|jQuery} [$nodes] A jQuery object, or array of nodes to update.
 535          * @deprecated since 1.24 Use the module jquery.accessKeyLabel instead.
 536          */
 537         mw.log.deprecate( util, 'updateTooltipAccessKeys', function ( $nodes ) {
 538                 if ( !$nodes ) {
 539                         if ( document.querySelectorAll ) {
 540                                 // If we're running on a browser where we can do this efficiently,
 541                                 // just find all elements that have accesskeys. We can't use jQuery's
 542                                 // polyfill for the selector since looping over all elements on page
 543                                 // load might be too slow.
 544                                 $nodes = $( document.querySelectorAll( '[accesskey]' ) );
 545                         } else {
 546                                 // Otherwise go through some elements likely to have accesskeys rather
 547                                 // than looping over all of them. Unfortunately this will not fully
 548                                 // work for custom skins with different HTML structures. Input, label
 549                                 // and button should be rare enough that no optimizations are needed.
 550                                 $nodes = $( '#column-one a, #mw-head a, #mw-panel a, #p-logo a, input, label, button' );
 551                         }
 552                 } else if ( !( $nodes instanceof $ ) ) {
 553                         $nodes = $( $nodes );
 554                 }
 555
 556                 $nodes.updateTooltipAccessKeys();
 557         }, 'Use jquery.accessKeyLabel instead.' );
 558
 559         /**
 560          * Add a little box at the top of the screen to inform the user of
 561          * something, replacing any previous message.
 562          * Calling with no arguments, with an empty string or null will hide the message
 563          *
 564          * @method jsMessage
 565          * @deprecated since 1.20 Use mw#notify
 566          * @param {Mixed} message The DOM-element, jQuery object or HTML-string to be put inside the message box.
 567          *  to allow CSS/JS to hide different boxes. null = no class used.
 568          */
 569         mw.log.deprecate( util, 'jsMessage', function ( message ) {
 570                 if ( !arguments.length || message === '' || message === null ) {
 571                         return true;
 572                 }
 573                 if ( typeof message !== 'object' ) {
 574                         message = $.parseHTML( message );
 575                 }
 576                 mw.notify( message, { autoHide: true, tag: 'legacy' } );
 577                 return true;
 578         }, 'Use mw.notify instead.' );
 579
 580         mw.util = util;
 581
 582 }( mediaWiki, jQuery ) );