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