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