includes/Skin.php

   1 <?php
   2 /**
   3  * @defgroup Skins Skins
   4  */
   5
   6 if ( ! defined( 'MEDIAWIKI' ) )
   7         die( 1 );
   8
   9 /**
  10  * The main skin class that provide methods and properties for all other skins.
  11  * This base class is also the "Standard" skin.
  12  *
  13  * See docs/skin.txt for more information.
  14  *
  15  * @ingroup Skins
  16  */
  17 class Skin extends Linker {
  18         /**#@+
  19          * @private
  20          */
  21         var $mWatchLinkNum = 0; // Appended to end of watch link id's
  22         // How many search boxes have we made?  Avoid duplicate id's.
  23         protected $searchboxes = '';
  24         /**#@-*/
  25         protected $mRevisionId; // The revision ID we're looking at, null if not applicable.
  26         protected $skinname = 'standard' ;
  27
  28         /** Constructor, call parent constructor */
  29         function Skin() { parent::__construct(); }
  30
  31         /**
  32          * Fetch the set of available skins.
  33          * @return array of strings
  34          * @static
  35          */
  36         static function getSkinNames() {
  37                 global $wgValidSkinNames;
  38                 static $skinsInitialised = false;
  39                 if ( !$skinsInitialised ) {
  40                         # Get a list of available skins
  41                         # Build using the regular expression '^(.*).php$'
  42                         # Array keys are all lower case, array value keep the case used by filename
  43                         #
  44                         wfProfileIn( __METHOD__ . '-init' );
  45                         global $wgStyleDirectory;
  46                         $skinDir = dir( $wgStyleDirectory );
  47
  48                         # while code from www.php.net
  49                         while (false !== ($file = $skinDir->read())) {
  50                                 // Skip non-PHP files, hidden files, and '.dep' includes
  51                                 $matches = array();
  52                                 if(preg_match('/^([^.]*)\.php$/',$file, $matches)) {
  53                                         $aSkin = $matches[1];
  54                                         $wgValidSkinNames[strtolower($aSkin)] = $aSkin;
  55                                 }
  56                         }
  57                         $skinDir->close();
  58                         $skinsInitialised = true;
  59                         wfProfileOut( __METHOD__ . '-init' );
  60                 }
  61                 return $wgValidSkinNames;
  62         }
  63
  64         /**
  65          * Fetch the list of usable skins in regards to $wgSkipSkins.
  66          * Useful for Special:Preferences and other places where you
  67          * only want to show skins users _can_ use.
  68          * @return array of strings
  69          */
  70         public static function getUsableSkins() {
  71                 global $wgSkipSkins;
  72                 $usableSkins = self::getSkinNames();
  73                 foreach ( $wgSkipSkins as $skip ) {
  74                         unset( $usableSkins[$skip] );
  75                 }
  76                 return $usableSkins;
  77         }
  78
  79         /**
  80          * Normalize a skin preference value to a form that can be loaded.
  81          * If a skin can't be found, it will fall back to the configured
  82          * default (or the old 'Classic' skin if that's broken).
  83          * @param string $key
  84          * @return string
  85          * @static
  86          */
  87         static function normalizeKey( $key ) {
  88                 global $wgDefaultSkin;
  89                 $skinNames = Skin::getSkinNames();
  90
  91                 if( $key == '' ) {
  92                         // Don't return the default immediately;
  93                         // in a misconfiguration we need to fall back.
  94                         $key = $wgDefaultSkin;
  95                 }
  96
  97                 if( isset( $skinNames[$key] ) ) {
  98                         return $key;
  99                 }
 100
 101                 // Older versions of the software used a numeric setting
 102                 // in the user preferences.
 103                 $fallback = array(
 104                         0 => $wgDefaultSkin,
 105                         1 => 'nostalgia',
 106                         2 => 'cologneblue' );
 107
 108                 if( isset( $fallback[$key] ) ){
 109                         $key = $fallback[$key];
 110                 }
 111
 112                 if( isset( $skinNames[$key] ) ) {
 113                         return $key;
 114                 } else {
 115                         return 'monobook';
 116                 }
 117         }
 118
 119         /**
 120          * Factory method for loading a skin of a given type
 121          * @param string $key 'monobook', 'standard', etc
 122          * @return Skin
 123          * @static
 124          */
 125         static function &newFromKey( $key ) {
 126                 global $wgStyleDirectory;
 127
 128                 $key = Skin::normalizeKey( $key );
 129
 130                 $skinNames = Skin::getSkinNames();
 131                 $skinName = $skinNames[$key];
 132                 $className = 'Skin'.ucfirst($key);
 133
 134                 # Grab the skin class and initialise it.
 135                 if ( !class_exists( $className ) ) {
 136                         // Preload base classes to work around APC/PHP5 bug
 137                         $deps = "{$wgStyleDirectory}/{$skinName}.deps.php";
 138                         if( file_exists( $deps ) ) include_once( $deps );
 139                         require_once( "{$wgStyleDirectory}/{$skinName}.php" );
 140
 141                         # Check if we got if not failback to default skin
 142                         if( !class_exists( $className ) ) {
 143                                 # DO NOT die if the class isn't found. This breaks maintenance
 144                                 # scripts and can cause a user account to be unrecoverable
 145                                 # except by SQL manipulation if a previously valid skin name
 146                                 # is no longer valid.
 147                                 wfDebug( "Skin class does not exist: $className\n" );
 148                                 $className = 'SkinMonobook';
 149                                 require_once( "{$wgStyleDirectory}/MonoBook.php" );
 150                         }
 151                 }
 152                 $skin = new $className;
 153                 return $skin;
 154         }
 155
 156         /** @return string path to the skin stylesheet */
 157         function getStylesheet() {
 158                 return 'common/wikistandard.css';
 159         }
 160
 161         /** @return string skin name */
 162         public function getSkinName() {
 163                 return $this->skinname;
 164         }
 165
 166         function qbSetting() {
 167                 global $wgOut, $wgUser;
 168
 169                 if ( $wgOut->isQuickbarSuppressed() ) { return 0; }
 170                 $q = $wgUser->getOption( 'quickbar', 0 );
 171                 return $q;
 172         }
 173
 174         function initPage( OutputPage $out ) {
 175                 global $wgFavicon, $wgAppleTouchIcon;
 176
 177                 wfProfileIn( __METHOD__ );
 178
 179                 # Generally the order of the favicon and apple-touch-icon links
 180                 # should not matter, but Konqueror (3.5.9 at least) incorrectly
 181                 # uses whichever one appears later in the HTML source.  Make sure
 182                 # apple-touch-icon is specified first to avoid this.
 183                 if( false !== $wgAppleTouchIcon ) {
 184                         $out->addLink( array( 'rel' => 'apple-touch-icon', 'href' => $wgAppleTouchIcon ) );
 185                 }
 186
 187                 if( false !== $wgFavicon ) {
 188                         $out->addLink( array( 'rel' => 'shortcut icon', 'href' => $wgFavicon ) );
 189                 }
 190
 191                 # OpenSearch description link
 192                 $out->addLink( array(
 193                         'rel' => 'search',
 194                         'type' => 'application/opensearchdescription+xml',
 195                         'href' => wfScript( 'opensearch_desc' ),
 196                         'title' => wfMsgForContent( 'opensearch-desc' ),
 197                 ));
 198
 199                 $this->addMetadataLinks($out);
 200
 201                 $this->mRevisionId = $out->mRevisionId;
 202
 203                 $this->preloadExistence();
 204
 205                 wfProfileOut( __METHOD__ );
 206         }
 207
 208         /**
 209          * Preload the existence of three commonly-requested pages in a single query
 210          */
 211         function preloadExistence() {
 212                 global $wgUser, $wgTitle;
 213
 214                 // User/talk link
 215                 $titles = array( $wgUser->getUserPage(), $wgUser->getTalkPage() );
 216
 217                 // Other tab link
 218                 if ( $wgTitle->getNamespace() == NS_SPECIAL ) {
 219                         // nothing
 220                 } elseif ( $wgTitle->isTalkPage() ) {
 221                         $titles[] = $wgTitle->getSubjectPage();
 222                 } else {
 223                         $titles[] = $wgTitle->getTalkPage();
 224                 }
 225
 226                 $lb = new LinkBatch( $titles );
 227                 $lb->execute();
 228         }
 229
 230         function addMetadataLinks( OutputPage $out ) {
 231                 global $wgTitle, $wgEnableDublinCoreRdf, $wgEnableCreativeCommonsRdf;
 232                 global $wgRightsPage, $wgRightsUrl;
 233
 234                 if( $out->isArticleRelated() ) {
 235                         # note: buggy CC software only reads first "meta" link
 236                         if( $wgEnableCreativeCommonsRdf ) {
 237                                 $out->addMetadataLink( array(
 238                                         'title' => 'Creative Commons',
 239                                         'type' => 'application/rdf+xml',
 240                                         'href' => $wgTitle->getLocalURL( 'action=creativecommons') ) );
 241                         }
 242                         if( $wgEnableDublinCoreRdf ) {
 243                                 $out->addMetadataLink( array(
 244                                         'title' => 'Dublin Core',
 245                                         'type' => 'application/rdf+xml',
 246                                         'href' => $wgTitle->getLocalURL( 'action=dublincore' ) ) );
 247                         }
 248                 }
 249                 $copyright = '';
 250                 if( $wgRightsPage ) {
 251                         $copy = Title::newFromText( $wgRightsPage );
 252                         if( $copy ) {
 253                                 $copyright = $copy->getLocalURL();
 254                         }
 255                 }
 256                 if( !$copyright && $wgRightsUrl ) {
 257                         $copyright = $wgRightsUrl;
 258                 }
 259                 if( $copyright ) {
 260                         $out->addLink( array(
 261                                 'rel' => 'copyright',
 262                                 'href' => $copyright ) );
 263                 }
 264         }
 265
 266         function setMembers(){
 267                 global $wgTitle, $wgUser;
 268                 $this->mTitle = $wgTitle;
 269                 $this->mUser = $wgUser;
 270                 $this->userpage = $wgUser->getUserPage()->getPrefixedText();
 271                 $this->usercss = false;
 272         }
 273
 274         function outputPage( OutputPage $out ) {
 275                 global $wgDebugComments;
 276                 wfProfileIn( __METHOD__ );
 277
 278                 $this->setMembers();
 279                 $this->initPage( $out );
 280
 281                 // See self::afterContentHook() for documentation
 282                 $afterContent = $this->afterContentHook();
 283
 284                 $out->out( $out->headElement( $this ) );
 285
 286                 $out->out( "\n<body" );
 287                 $ops = $this->getBodyOptions();
 288                 foreach ( $ops as $name => $val ) {
 289                         $out->out( " $name='$val'" );
 290                 }
 291                 $out->out( ">\n" );
 292                 if ( $wgDebugComments ) {
 293                         $out->out( "<!-- Wiki debugging output:\n" .
 294                           $out->mDebugtext . "-->\n" );
 295                 }
 296
 297                 $out->out( $this->beforeContent() );
 298
 299                 $out->out( $out->mBodytext . "\n" );
 300
 301                 $out->out( $this->afterContent() );
 302
 303                 $out->out( $afterContent );
 304
 305                 $out->out( $this->bottomScripts() );
 306
 307                 $out->out( wfReportTime() );
 308
 309                 $out->out( "\n</body></html>" );
 310                 wfProfileOut( __METHOD__ );
 311         }
 312
 313         static function makeVariablesScript( $data ) {
 314                 global $wgJsMimeType;
 315
 316                 $r = array( "<script type= \"$wgJsMimeType\">/*<![CDATA[*/" );
 317                 foreach ( $data as $name => $value ) {
 318                         $encValue = Xml::encodeJsVar( $value );
 319                         $r[] = "var $name = $encValue;";
 320                 }
 321                 $r[] = "/*]]>*/</script>\n";
 322
 323                 return implode( "\n\t\t", $r );
 324         }
 325
 326         /**
 327          * Make a <script> tag containing global variables
 328          * @param array $data Associative array containing one element:
 329          *     skinname => the skin name
 330          * The odd calling convention is for backwards compatibility
 331          */
 332         static function makeGlobalVariablesScript( $data ) {
 333                 global $wgScript, $wgStylePath, $wgUser;
 334                 global $wgArticlePath, $wgScriptPath, $wgServer, $wgContLang, $wgLang;
 335                 global $wgTitle, $wgCanonicalNamespaceNames, $wgOut, $wgArticle;
 336                 global $wgBreakFrames, $wgRequest, $wgVariantArticlePath, $wgActionPaths;
 337                 global $wgUseAjax, $wgAjaxWatch;
 338                 global $wgVersion, $wgEnableAPI, $wgEnableWriteAPI;
 339                 global $wgRestrictionTypes, $wgLivePreview;
 340                 global $wgMWSuggestTemplate, $wgDBname, $wgEnableMWSuggest;
 341
 342                 $ns = $wgTitle->getNamespace();
 343                 $nsname = isset( $wgCanonicalNamespaceNames[ $ns ] ) ? $wgCanonicalNamespaceNames[ $ns ] : $wgTitle->getNsText();
 344
 345                 $vars = array(
 346                         'skin' => $data['skinname'],
 347                         'stylepath' => $wgStylePath,
 348                         'wgArticlePath' => $wgArticlePath,
 349                         'wgScriptPath' => $wgScriptPath,
 350                         'wgScript' => $wgScript,
 351                         'wgVariantArticlePath' => $wgVariantArticlePath,
 352                         'wgActionPaths' => (object)$wgActionPaths,
 353                         'wgServer' => $wgServer,
 354                         'wgCanonicalNamespace' => $nsname,
 355                         'wgCanonicalSpecialPageName' => SpecialPage::resolveAlias( $wgTitle->getDBkey() ),
 356                         'wgNamespaceNumber' => $wgTitle->getNamespace(),
 357                         'wgPageName' => $wgTitle->getPrefixedDBKey(),
 358                         'wgTitle' => $wgTitle->getText(),
 359                         'wgAction' => $wgRequest->getText( 'action', 'view' ),
 360                         'wgArticleId' => $wgTitle->getArticleId(),
 361                         'wgIsArticle' => $wgOut->isArticle(),
 362                         'wgUserName' => $wgUser->isAnon() ? NULL : $wgUser->getName(),
 363                         'wgUserGroups' => $wgUser->isAnon() ? NULL : $wgUser->getEffectiveGroups(),
 364                         'wgUserLanguage' => $wgLang->getCode(),
 365                         'wgContentLanguage' => $wgContLang->getCode(),
 366                         'wgBreakFrames' => $wgBreakFrames,
 367                         'wgCurRevisionId' => isset( $wgArticle ) ? $wgArticle->getLatest() : 0,
 368                         'wgVersion' => $wgVersion,
 369                         'wgEnableAPI' => $wgEnableAPI,
 370                         'wgEnableWriteAPI' => $wgEnableWriteAPI,
 371                 );
 372
 373                 if( $wgUseAjax && $wgEnableMWSuggest && !$wgUser->getOption( 'disablesuggest', false )){
 374                         $vars['wgMWSuggestTemplate'] = SearchEngine::getMWSuggestTemplate();
 375                         $vars['wgDBname'] = $wgDBname;
 376                         $vars['wgSearchNamespaces'] = SearchEngine::userNamespaces( $wgUser );
 377                         $vars['wgMWSuggestMessages'] = array( wfMsg('search-mwsuggest-enabled'), wfMsg('search-mwsuggest-disabled'));
 378                 }
 379
 380                 foreach( $wgRestrictionTypes as $type )
 381                         $vars['wgRestriction' . ucfirst( $type )] = $wgTitle->getRestrictions( $type );
 382
 383                 if ( $wgLivePreview && $wgUser->getOption( 'uselivepreview' ) ) {
 384                         $vars['wgLivepreviewMessageLoading'] = wfMsg( 'livepreview-loading' );
 385                         $vars['wgLivepreviewMessageReady']   = wfMsg( 'livepreview-ready' );
 386                         $vars['wgLivepreviewMessageFailed']  = wfMsg( 'livepreview-failed' );
 387                         $vars['wgLivepreviewMessageError']   = wfMsg( 'livepreview-error' );
 388                 }
 389
 390                 if($wgUseAjax && $wgAjaxWatch && $wgUser->isLoggedIn() ) {
 391                         $msgs = (object)array();
 392                         foreach ( array( 'watch', 'unwatch', 'watching', 'unwatching' ) as $msgName ) {
 393                                 $msgs->{$msgName . 'Msg'} = wfMsg( $msgName );
 394                         }
 395                         $vars['wgAjaxWatch'] = $msgs;
 396                 }
 397
 398                 wfRunHooks('MakeGlobalVariablesScript', array(&$vars));
 399
 400                 return self::makeVariablesScript( $vars );
 401         }
 402
 403         function getHeadScripts( $allowUserJs ) {
 404                 global $wgStylePath, $wgUser, $wgJsMimeType, $wgStyleVersion;
 405
 406                 $vars = self::makeGlobalVariablesScript( array( 'skinname' => $this->getSkinName() ) );
 407
 408                 $r = array( "<script type=\"{$wgJsMimeType}\" src=\"{$wgStylePath}/common/wikibits.js?$wgStyleVersion\"></script>" );
 409                 global $wgUseSiteJs;
 410                 if ($wgUseSiteJs) {
 411                         $jsCache = $wgUser->isLoggedIn() ? '&smaxage=0' : '';
 412                         $r[] = "<script type=\"$wgJsMimeType\" src=\"".
 413                                 htmlspecialchars(self::makeUrl('-',
 414                                         "action=raw$jsCache&gen=js&useskin=" .
 415                                         urlencode( $this->getSkinName() ) ) ) .
 416                                 "\"><!-- site js --></script>";
 417                 }
 418                 if( $allowUserJs && $wgUser->isLoggedIn() ) {
 419                         $userpage = $wgUser->getUserPage();
 420                         $userjs = htmlspecialchars( self::makeUrl(
 421                                 $userpage->getPrefixedText().'/'.$this->getSkinName().'.js',
 422                                 'action=raw&ctype='.$wgJsMimeType));
 423                         $r[] = '<script type="'.$wgJsMimeType.'" src="'.$userjs."\"></script>";
 424                 }
 425                 return $vars . "\t\t" . implode ( "\n\t\t", $r );
 426         }
 427
 428         /**
 429          * To make it harder for someone to slip a user a fake
 430          * user-JavaScript or user-CSS preview, a random token
 431          * is associated with the login session. If it's not
 432          * passed back with the preview request, we won't render
 433          * the code.
 434          *
 435          * @param string $action
 436          * @return bool
 437          * @private
 438          */
 439         function userCanPreview( $action ) {
 440                 global $wgTitle, $wgRequest, $wgUser;
 441
 442                 if( $action != 'submit' )
 443                         return false;
 444                 if( !$wgRequest->wasPosted() )
 445                         return false;
 446                 if( !$wgTitle->userCanEditCssJsSubpage() )
 447                         return false;
 448                 return $wgUser->matchEditToken(
 449                         $wgRequest->getVal( 'wpEditToken' ) );
 450         }
 451
 452         /**
 453          * generated JavaScript action=raw&gen=js
 454          * This returns MediaWiki:Common.js and MediaWiki:[Skinname].js concate-
 455          * nated together.  For some bizarre reason, it does *not* return any
 456          * custom user JS from subpages.  Huh?
 457          *
 458          * There's absolutely no reason to have separate Monobook/Common JSes.
 459          * Any JS that cares can just check the skin variable generated at the
 460          * top.  For now Monobook.js will be maintained, but it should be consi-
 461          * dered deprecated.
 462          *
 463          * @return string
 464          */
 465         public function generateUserJs() {
 466                 global $wgStylePath;
 467
 468                 wfProfileIn( __METHOD__ );
 469
 470                 $s = "/* generated javascript */\n";
 471                 $s .= "var skin = '" . Xml::escapeJsString( $this->getSkinName() ) . "';\n";
 472                 $s .= "var stylepath = '" . Xml::escapeJsString( $wgStylePath ) . "';";
 473                 $s .= "\n\n/* MediaWiki:Common.js */\n";
 474                 $commonJs = wfMsgForContent('common.js');
 475                 if ( !wfEmptyMsg ( 'common.js', $commonJs ) ) {
 476                         $s .= $commonJs;
 477                 }
 478
 479                 $s .= "\n\n/* MediaWiki:".ucfirst( $this->getSkinName() ).".js */\n";
 480                 // avoid inclusion of non defined user JavaScript (with custom skins only)
 481                 // by checking for default message content
 482                 $msgKey = ucfirst( $this->getSkinName() ).'.js';
 483                 $userJS = wfMsgForContent($msgKey);
 484                 if ( !wfEmptyMsg( $msgKey, $userJS ) ) {
 485                         $s .= $userJS;
 486                 }
 487
 488                 wfProfileOut( __METHOD__ );
 489                 return $s;
 490         }
 491
 492         /**
 493          * generate user stylesheet for action=raw&gen=css
 494          */
 495         public function generateUserStylesheet() {
 496                 wfProfileIn( __METHOD__ );
 497                 $s = "/* generated user stylesheet */\n" .
 498                         $this->reallyGenerateUserStylesheet();
 499                 wfProfileOut( __METHOD__ );
 500                 return $s;
 501         }
 502
 503         /**
 504          * Split for easier subclassing in SkinSimple, SkinStandard and SkinCologneBlue
 505          */
 506         protected function reallyGenerateUserStylesheet(){
 507                 global $wgUser;
 508                 $s = '';
 509                 if (($undopt = $wgUser->getOption("underline")) < 2) {
 510                         $underline = $undopt ? 'underline' : 'none';
 511                         $s .= "a { text-decoration: $underline; }\n";
 512                 }
 513                 if( $wgUser->getOption( 'highlightbroken' ) ) {
 514                         $s .= "a.new, #quickbar a.new { color: #CC2200; }\n";
 515                 } else {
 516                         $s .= <<<END
 517 a.new, #quickbar a.new,
 518 a.stub, #quickbar a.stub {
 519         color: inherit;
 520 }
 521 a.new:after, #quickbar a.new:after {
 522         content: "?";
 523         color: #CC2200;
 524 }
 525 a.stub:after, #quickbar a.stub:after {
 526         content: "!";
 527         color: #772233;
 528 }
 529 END;
 530                 }
 531                 if( $wgUser->getOption( 'justify' ) ) {
 532                         $s .= "#article, #bodyContent, #mw_content { text-align: justify; }\n";
 533                 }
 534                 if( !$wgUser->getOption( 'showtoc' ) ) {
 535                         $s .= "#toc { display: none; }\n";
 536                 }
 537                 if( !$wgUser->getOption( 'editsection' ) ) {
 538                         $s .= ".editsection { display: none; }\n";
 539                 }
 540                 return $s;
 541         }
 542
 543         /**
 544          * @private
 545          */
 546         function setupUserCss( OutputPage $out ) {
 547                 global $wgRequest, $wgContLang, $wgUser;
 548                 global $wgAllowUserCss, $wgUseSiteCss, $wgSquidMaxage, $wgStylePath;
 549
 550                 wfProfileIn( __METHOD__ );
 551
 552                 $this->setupSkinUserCss( $out );
 553
 554                 $siteargs = array(
 555                         'action' => 'raw',
 556                         'maxage' => $wgSquidMaxage,
 557                 );
 558
 559                 // Add any extension CSS
 560                 foreach( $out->getExtStyle() as $tag ) {
 561                         $out->addStyle( $tag['href'] );
 562                 }
 563
 564                 // If we use the site's dynamic CSS, throw that in, too
 565                 // Per-site custom styles
 566                 if( $wgUseSiteCss ) {
 567                         global $wgHandheldStyle;
 568                         $query = wfArrayToCGI( array(
 569                                 'usemsgcache' => 'yes',
 570                                 'ctype' => 'text/css',
 571                                 'smaxage' => $wgSquidMaxage
 572                         ) + $siteargs );
 573                         # Site settings must override extension css! (bug 15025)
 574                         $out->addStyle( self::makeNSUrl( 'Common.css', $query, NS_MEDIAWIKI ) );
 575                         $out->addStyle( self::makeNSUrl( 'Print.css', $query, NS_MEDIAWIKI ), 'print' );
 576                         if( $wgHandheldStyle ) {
 577                                 $out->addStyle( self::makeNSUrl( 'Handheld.css', $query, NS_MEDIAWIKI ), 'handheld' );
 578                         }
 579                         $out->addStyle( self::makeNSUrl( $this->getSkinName() . '.css', $query, NS_MEDIAWIKI ) );
 580                 }
 581
 582                 if( $wgUser->isLoggedIn() ) {
 583                         // Ensure that logged-in users' generated CSS isn't clobbered
 584                         // by anons' publicly cacheable generated CSS.
 585                         $siteargs['smaxage'] = '0';
 586                         $siteargs['ts'] = $wgUser->mTouched;
 587                 }
 588                 // Per-user styles based on preferences
 589                 $siteargs['gen'] = 'css';
 590                 if( ( $us = $wgRequest->getVal( 'useskin', '' ) ) !== '' ) {
 591                         $siteargs['useskin'] = $us;
 592                 }
 593                 $out->addStyle( self::makeUrl( '-', wfArrayToCGI( $siteargs ) ) );
 594
 595                 // Per-user custom style pages
 596                 if( $wgAllowUserCss && $wgUser->isLoggedIn() ) {
 597                         $action = $wgRequest->getVal('action');
 598                         # If we're previewing the CSS page, use it
 599                         if( $this->mTitle->isCssSubpage() && $this->userCanPreview( $action ) ) {
 600                                 $previewCss = $wgRequest->getText('wpTextbox1');
 601                                 // @FIXME: properly escape the cdata!
 602                                 $this->usercss = "/*<![CDATA[*/\n" . $previewCss . "/*]]>*/";
 603                         } else {
 604                                 $out->addStyle( self::makeUrl($this->userpage . '/' . $this->getSkinName() .'.css',
 605                                         'action=raw&ctype=text/css' ) );
 606                         }
 607                 }
 608
 609                 wfProfileOut( __METHOD__ );
 610         }
 611
 612         /**
 613          * Add skin specific stylesheets
 614          * @param $out OutputPage
 615          */
 616         function setupSkinUserCss( OutputPage $out ) {
 617                 $out->addStyle( 'common/shared.css' );
 618                 $out->addStyle( 'common/oldshared.css' );
 619                 $out->addStyle( $this->getStylesheet() );
 620                 $out->addStyle( 'common/common_rtl.css', '', '', 'rtl' );
 621         }
 622
 623         function getBodyOptions() {
 624                 global $wgUser, $wgTitle, $wgOut, $wgRequest, $wgContLang;
 625
 626                 extract( $wgRequest->getValues( 'oldid', 'redirect', 'diff' ) );
 627
 628                 if ( 0 != $wgTitle->getNamespace() ) {
 629                         $a = array( 'bgcolor' => '#ffffec' );
 630                 }
 631                 else $a = array( 'bgcolor' => '#FFFFFF' );
 632                 if($wgOut->isArticle() && $wgUser->getOption('editondblclick') &&
 633                   $wgTitle->quickUserCan( 'edit' ) ) {
 634                         $s = $wgTitle->getFullURL( $this->editUrlOptions() );
 635                         $s = 'document.location = "' .wfEscapeJSString( $s ) .'";';
 636                         $a += array ('ondblclick' => $s);
 637
 638                 }
 639                 $a['onload'] = $wgOut->getOnloadHandler();
 640                 $a['class'] =
 641                         'mediawiki' .
 642                         ' '.( $wgContLang->isRTL() ? "rtl" : "ltr" ).
 643                         ' '.$this->getPageClasses( $wgTitle ) .
 644                         ' skin-'. Sanitizer::escapeClass( $this->getSkinName( ) );
 645                 return $a;
 646         }
 647
 648         function getPageClasses( $title ) {
 649                 $numeric = 'ns-'.$title->getNamespace();
 650                 if( $title->getNamespace() == NS_SPECIAL ) {
 651                         $type = "ns-special";
 652                 } elseif( $title->isTalkPage() ) {
 653                         $type = "ns-talk";
 654                 } else {
 655                         $type = "ns-subject";
 656                 }
 657                 $name = Sanitizer::escapeClass( 'page-'.$title->getPrefixedText() );
 658                 return "$numeric $type $name";
 659         }
 660
 661         /**
 662          * URL to the logo
 663          */
 664         function getLogo() {
 665                 global $wgLogo;
 666                 return $wgLogo;
 667         }
 668
 669         /**
 670          * This will be called immediately after the <body> tag.  Split into
 671          * two functions to make it easier to subclass.
 672          */
 673         function beforeContent() {
 674                 return $this->doBeforeContent();
 675         }
 676
 677         function doBeforeContent() {
 678                 global $wgContLang;
 679                 $fname = 'Skin::doBeforeContent';
 680                 wfProfileIn( $fname );
 681
 682                 $s = '';
 683                 $qb = $this->qbSetting();
 684
 685                 if( $langlinks = $this->otherLanguages() ) {
 686                         $rows = 2;
 687                         $borderhack = '';
 688                 } else {
 689                         $rows = 1;
 690                         $langlinks = false;
 691                         $borderhack = 'class="top"';
 692                 }
 693
 694                 $s .= "\n<div id='content'>\n<div id='topbar'>\n" .
 695                   "<table border='0' cellspacing='0' width='98%'>\n<tr>\n";
 696
 697                 $shove = ( $qb != 0 );
 698                 $left = ( $qb == 1 || $qb == 3 );
 699                 if( $wgContLang->isRTL() ) $left = !$left;
 700
 701                 if( !$shove ) {
 702                         $s .= "<td class='top' align='left' valign='top' rowspan='{$rows}'>\n" .
 703                           $this->logoText() . '</td>';
 704                 } elseif( $left ) {
 705                         $s .= $this->getQuickbarCompensator( $rows );
 706                 }
 707                 $l = $wgContLang->isRTL() ? 'right' : 'left';
 708                 $s .= "<td {$borderhack} align='$l' valign='top'>\n";
 709
 710                 $s .= $this->topLinks() ;
 711                 $s .= "<p class='subtitle'>" . $this->pageTitleLinks() . "</p>\n";
 712
 713                 $r = $wgContLang->isRTL() ? "left" : "right";
 714                 $s .= "</td>\n<td {$borderhack} valign='top' align='$r' nowrap='nowrap'>";
 715                 $s .= $this->nameAndLogin();
 716                 $s .= "\n<br />" . $this->searchForm() . "</td>";
 717
 718                 if ( $langlinks ) {
 719                         $s .= "</tr>\n<tr>\n<td class='top' colspan=\"2\">$langlinks</td>\n";
 720                 }
 721
 722                 if ( $shove && !$left ) { # Right
 723                         $s .= $this->getQuickbarCompensator( $rows );
 724                 }
 725                 $s .= "</tr>\n</table>\n</div>\n";
 726                 $s .= "\n<div id='article'>\n";
 727
 728                 $notice = wfGetSiteNotice();
 729                 if( $notice ) {
 730                         $s .= "\n<div id='siteNotice'>$notice</div>\n";
 731                 }
 732                 $s .= $this->pageTitle();
 733                 $s .= $this->pageSubtitle() ;
 734                 $s .= $this->getCategories();
 735                 wfProfileOut( $fname );
 736                 return $s;
 737         }
 738
 739
 740         function getCategoryLinks() {
 741                 global $wgOut, $wgTitle, $wgUseCategoryBrowser;
 742                 global $wgContLang, $wgUser;
 743
 744                 if( count( $wgOut->mCategoryLinks ) == 0 ) return '';
 745
 746                 # Separator
 747                 $sep = wfMsgHtml( 'catseparator' );
 748
 749                 // Use Unicode bidi embedding override characters,
 750                 // to make sure links don't smash each other up in ugly ways.
 751                 $dir = $wgContLang->isRTL() ? 'rtl' : 'ltr';
 752                 $embed = "<span dir='$dir'>";
 753                 $pop = '</span>';
 754
 755                 $allCats = $wgOut->getCategoryLinks();
 756                 $s = '';
 757                 $colon = wfMsgExt( 'colon-separator', 'escapenoentities' );
 758                 if ( !empty( $allCats['normal'] ) ) {
 759                         $t = $embed . implode ( "{$pop} {$sep} {$embed}" , $allCats['normal'] ) . $pop;
 760
 761                         $msg = wfMsgExt( 'pagecategories', array( 'parsemag', 'escapenoentities' ), count( $allCats['normal'] ) );
 762                         $s .= '<div id="mw-normal-catlinks">' .
 763                                 $this->link( Title::newFromText( wfMsgForContent('pagecategorieslink') ), $msg )
 764                                 . $colon . $t . '</div>';
 765                 }
 766
 767                 # Hidden categories
 768                 if ( isset( $allCats['hidden'] ) ) {
 769                         if ( $wgUser->getBoolOption( 'showhiddencats' ) ) {
 770                                 $class ='mw-hidden-cats-user-shown';
 771                         } elseif ( $wgTitle->getNamespace() == NS_CATEGORY ) {
 772                                 $class = 'mw-hidden-cats-ns-shown';
 773                         } else {
 774                                 $class = 'mw-hidden-cats-hidden';
 775                         }
 776                         $s .= "<div id=\"mw-hidden-catlinks\" class=\"$class\">" .
 777                                 wfMsgExt( 'hidden-categories', array( 'parsemag', 'escapenoentities' ), count( $allCats['hidden'] ) ) .
 778                                 $colon . $embed . implode( "$pop $sep $embed", $allCats['hidden'] ) . $pop .
 779                                 "</div>";
 780                 }
 781
 782                 # optional 'dmoz-like' category browser. Will be shown under the list
 783                 # of categories an article belong to
 784                 if( $wgUseCategoryBrowser ){
 785                         $s .= '<br /><hr />';
 786
 787                         # get a big array of the parents tree
 788                         $parenttree = $wgTitle->getParentCategoryTree();
 789                         # Skin object passed by reference cause it can not be
 790                         # accessed under the method subfunction drawCategoryBrowser
 791                         $tempout = explode("\n", Skin::drawCategoryBrowser($parenttree, $this) );
 792                         # Clean out bogus first entry and sort them
 793                         unset($tempout[0]);
 794                         asort($tempout);
 795                         # Output one per line
 796                         $s .= implode("<br />\n", $tempout);
 797                 }
 798
 799                 return $s;
 800         }
 801
 802         /** Render the array as a serie of links.
 803          * @param $tree Array: categories tree returned by Title::getParentCategoryTree
 804          * @param &skin Object: skin passed by reference
 805          * @return String separated by &gt;, terminate with "\n"
 806          */
 807         function drawCategoryBrowser( $tree, &$skin ){
 808                 $return = '';
 809                 foreach ($tree as $element => $parent) {
 810                         if (empty($parent)) {
 811                                 # element start a new list
 812                                 $return .= "\n";
 813                         } else {
 814                                 # grab the others elements
 815                                 $return .= Skin::drawCategoryBrowser($parent, $skin) . ' &gt; ';
 816                         }
 817                         # add our current element to the list
 818                         $eltitle = Title::newFromText($element);
 819                         $return .=  $skin->link( $eltitle, $eltitle->getText() ) ;
 820                 }
 821                 return $return;
 822         }
 823
 824         function getCategories() {
 825                 $catlinks=$this->getCategoryLinks();
 826
 827                 $classes = 'catlinks';
 828
 829                 if( strpos( $catlinks, '<div id="mw-normal-catlinks">' ) === false &&
 830                         strpos( $catlinks, '<div id="mw-hidden-catlinks" class="mw-hidden-cats-hidden">' ) !== false ) {
 831                         $classes .= ' catlinks-allhidden';
 832                 }
 833
 834                 if( !empty( $catlinks ) ){
 835                         return "<div id='catlinks' class='$classes'>{$catlinks}</div>";
 836                 }
 837         }
 838
 839         function getQuickbarCompensator( $rows = 1 ) {
 840                 return "<td width='152' rowspan='{$rows}'>&nbsp;</td>";
 841         }
 842
 843         /**
 844          * This runs a hook to allow extensions placing their stuff after content
 845          * and article metadata (e.g. categories).
 846          * Note: This function has nothing to do with afterContent().
 847          *
 848          * This hook is placed here in order to allow using the same hook for all
 849          * skins, both the SkinTemplate based ones and the older ones, which directly
 850          * use this class to get their data.
 851          *
 852          * The output of this function gets processed in SkinTemplate::outputPage() for
 853          * the SkinTemplate based skins, all other skins should directly echo it.
 854          *
 855          * Returns an empty string by default, if not changed by any hook function.
 856          */
 857         protected function afterContentHook() {
 858                 $data = "";
 859
 860                 if( wfRunHooks( 'SkinAfterContent', array( &$data ) ) ){
 861                         // adding just some spaces shouldn't toggle the output
 862                         // of the whole <div/>, so we use trim() here
 863                         if( trim( $data ) != '' ){
 864                                 // Doing this here instead of in the skins to
 865                                 // ensure that the div has the same ID in all
 866                                 // skins
 867                                 $data = "<div id='mw-data-after-content'>\n" .
 868                                         "\t$data\n" .
 869                                         "</div>\n";
 870                         }
 871                 } else {
 872                         wfDebug( "Hook SkinAfterContent changed output processing.\n" );
 873                 }
 874
 875                 return $data;
 876         }
 877
 878         /**
 879          * This gets called shortly before the </body> tag.
 880          * @return String HTML to be put before </body>
 881          */
 882         function afterContent() {
 883                 $printfooter = "<div class=\"printfooter\">\n" . $this->printFooter() . "</div>\n";
 884                 return $printfooter . $this->doAfterContent();
 885         }
 886
 887         /**
 888          * This gets called shortly before the </body> tag.
 889          * @return String HTML-wrapped JS code to be put before </body>
 890          */
 891         function bottomScripts() {
 892                 global $wgJsMimeType;
 893                 $bottomScriptText = "\n\t\t<script type=\"$wgJsMimeType\">if (window.runOnloadHook) runOnloadHook();</script>\n";
 894                 wfRunHooks( 'SkinAfterBottomScripts', array( $this, &$bottomScriptText ) );
 895                 return $bottomScriptText;
 896         }
 897
 898         /** @return string Retrievied from HTML text */
 899         function printSource() {
 900                 global $wgTitle;
 901                 $url = htmlspecialchars( $wgTitle->getFullURL() );
 902                 return wfMsg( 'retrievedfrom', '<a href="'.$url.'">'.$url.'</a>' );
 903         }
 904
 905         function printFooter() {
 906                 return "<p>" .  $this->printSource() .
 907                         "</p>\n\n<p>" . $this->pageStats() . "</p>\n";
 908         }
 909
 910         /** overloaded by derived classes */
 911         function doAfterContent() { return "</div></div>"; }
 912
 913         function pageTitleLinks() {
 914                 global $wgOut, $wgTitle, $wgUser, $wgRequest;
 915
 916                 $oldid = $wgRequest->getVal( 'oldid' );
 917                 $diff = $wgRequest->getVal( 'diff' );
 918                 $action = $wgRequest->getText( 'action' );
 919
 920                 $s = $this->printableLink();
 921                 $disclaimer = $this->disclaimerLink(); # may be empty
 922                 if( $disclaimer ) {
 923                         $s .= ' | ' . $disclaimer;
 924                 }
 925                 $privacy = $this->privacyLink(); # may be empty too
 926                 if( $privacy ) {
 927                         $s .= ' | ' . $privacy;
 928                 }
 929
 930                 if ( $wgOut->isArticleRelated() ) {
 931                         if ( $wgTitle->getNamespace() == NS_IMAGE ) {
 932                                 $name = $wgTitle->getDBkey();
 933                                 $image = wfFindFile( $wgTitle );
 934                                 if( $image ) {
 935                                         $link = htmlspecialchars( $image->getURL() );
 936                                         $style = $this->getInternalLinkAttributes( $link, $name );
 937                                         $s .= " | <a href=\"{$link}\"{$style}>{$name}</a>";
 938                                 }
 939                         }
 940                 }
 941                 if ( 'history' == $action || isset( $diff ) || isset( $oldid ) ) {
 942                         $s .= ' | ' . $this->makeKnownLinkObj( $wgTitle,
 943                                         wfMsg( 'currentrev' ) );
 944                 }
 945
 946                 if ( $wgUser->getNewtalk() ) {
 947                         # do not show "You have new messages" text when we are viewing our
 948                         # own talk page
 949                         if( !$wgTitle->equals( $wgUser->getTalkPage() ) ) {
 950                                 $tl = $this->makeKnownLinkObj( $wgUser->getTalkPage(), wfMsgHtml( 'newmessageslink' ), 'redirect=no' );
 951                                 $dl = $this->makeKnownLinkObj( $wgUser->getTalkPage(), wfMsgHtml( 'newmessagesdifflink' ), 'diff=cur' );
 952                                 $s.= ' | <strong>'. wfMsg( 'youhavenewmessages', $tl, $dl ) . '</strong>';
 953                                 # disable caching
 954                                 $wgOut->setSquidMaxage(0);
 955                                 $wgOut->enableClientCache(false);
 956                         }
 957                 }
 958
 959                 $undelete = $this->getUndeleteLink();
 960                 if( !empty( $undelete ) ) {
 961                         $s .= ' | '.$undelete;
 962                 }
 963                 return $s;
 964         }
 965
 966         function getUndeleteLink() {
 967                 global $wgUser, $wgTitle, $wgContLang, $wgLang, $action;
 968                 if(     $wgUser->isAllowed( 'deletedhistory' ) &&
 969                         (($wgTitle->getArticleId() == 0) || ($action == "history")) &&
 970                         ($n = $wgTitle->isDeleted() ) )
 971                 {
 972                         if ( $wgUser->isAllowed( 'undelete' ) ) {
 973                                 $msg = 'thisisdeleted';
 974                         } else {
 975                                 $msg = 'viewdeleted';
 976                         }
 977                         return wfMsg( $msg,
 978                                 $this->makeKnownLinkObj(
 979                                         SpecialPage::getTitleFor( 'Undelete', $wgTitle->getPrefixedDBkey() ),
 980                                         wfMsgExt( 'restorelink', array( 'parsemag', 'escape' ), $wgLang->formatNum( $n ) ) ) );
 981                 }
 982                 return '';
 983         }
 984
 985         function printableLink() {
 986                 global $wgOut, $wgFeedClasses, $wgRequest;
 987
 988                 $printurl = $wgRequest->escapeAppendQuery( 'printable=yes' );
 989
 990                 $s = "<a href=\"$printurl\">" . wfMsg( 'printableversion' ) . '</a>';
 991                 if( $wgOut->isSyndicated() ) {
 992                         foreach( $wgFeedClasses as $format => $class ) {
 993                                 $feedurl = $wgRequest->escapeAppendQuery( "feed=$format" );
 994                                 $s .= " | <a href=\"$feedurl\">{$format}</a>";
 995                         }
 996                 }
 997                 return $s;
 998         }
 999
1000         function pageTitle() {
1001                 global $wgOut;
1002                 $s = '<h1 class="pagetitle">' . htmlspecialchars( $wgOut->getPageTitle() ) . '</h1>';
1003                 return $s;
1004         }
1005
1006         function pageSubtitle() {
1007                 global $wgOut;
1008
1009                 $sub = $wgOut->getSubtitle();
1010                 if ( '' == $sub ) {
1011                         global $wgExtraSubtitle;
1012                         $sub = wfMsg( 'tagline' ) . $wgExtraSubtitle;
1013                 }
1014                 $subpages = $this->subPageSubtitle();
1015                 $sub .= !empty($subpages)?"</p><p class='subpages'>$subpages":'';
1016                 $s = "<p class='subtitle'>{$sub}</p>\n";
1017                 return $s;
1018         }
1019
1020         function subPageSubtitle() {
1021                 $subpages = '';
1022                 if(!wfRunHooks('SkinSubPageSubtitle', array(&$subpages)))
1023                         return $subpages;
1024
1025                 global $wgOut, $wgTitle;
1026                 if($wgOut->isArticle() && MWNamespace::hasSubpages( $wgTitle->getNamespace() )) {
1027                         $ptext=$wgTitle->getPrefixedText();
1028                         if(preg_match('/\//',$ptext)) {
1029                                 $links = explode('/',$ptext);
1030                                 array_pop( $links );
1031                                 $c = 0;
1032                                 $growinglink = '';
1033                                 $display = '';
1034                                 foreach($links as $link) {
1035                                         $growinglink .= $link;
1036                                         $display .= $link;
1037                                         $linkObj = Title::newFromText( $growinglink );
1038                                         if( is_object( $linkObj ) && $linkObj->exists() ){
1039                                                 $getlink = $this->makeKnownLinkObj( $linkObj, htmlspecialchars( $display ) );
1040                                                 $c++;
1041                                                 if ($c>1) {
1042                                                         $subpages .= ' | ';
1043                                                 } else  {
1044                                                         $subpages .= '&lt; ';
1045                                                 }
1046                                                 $subpages .= $getlink;
1047                                                 $display = '';
1048                                         } else {
1049                                                 $display .= '/';
1050                                         }
1051                                         $growinglink .= '/';
1052                                 }
1053                         }
1054                 }
1055                 return $subpages;
1056         }
1057
1058         /**
1059          * Returns true if the IP should be shown in the header
1060          */
1061         function showIPinHeader() {
1062                 global $wgShowIPinHeader;
1063                 return $wgShowIPinHeader && session_id() != '';
1064         }
1065
1066         function nameAndLogin() {
1067                 global $wgUser, $wgTitle, $wgLang, $wgContLang;
1068
1069                 $logoutPage = $wgContLang->specialPage( 'Userlogout' );
1070
1071                 $ret = '';
1072                 if ( $wgUser->isAnon() ) {
1073                         if( $this->showIPinHeader() ) {
1074                                 $name = wfGetIP();
1075
1076                                 $talkLink = $this->link( $wgUser->getTalkPage(),
1077                                         $wgLang->getNsText( NS_TALK ) );
1078
1079                                 $ret .= "$name ($talkLink)";
1080                         } else {
1081                                 $ret .= wfMsg( 'notloggedin' );
1082                         }
1083
1084                         $returnTo = $wgTitle->getPrefixedDBkey();
1085                         $query = array();
1086                         if ( $logoutPage != $returnTo ) {
1087                                 $query['returnto'] = $returnTo;
1088                         }
1089
1090                         $loginlink = $wgUser->isAllowed( 'createaccount' )
1091                                 ? 'nav-login-createaccount'
1092                                 : 'login';
1093                         $ret .= "\n<br />" . $this->link(
1094                                 SpecialPage::getTitleFor( 'Userlogin' ),
1095                                 wfMsg( $loginlink ), array(), $query
1096                         );
1097                 } else {
1098                         $returnTo = $wgTitle->getPrefixedDBkey();
1099                         $talkLink = $this->link( $wgUser->getTalkPage(),
1100                                 $wgLang->getNsText( NS_TALK ) );
1101
1102                         $ret .= $this->link( $wgUser->getUserPage(),
1103                                 htmlspecialchars( $wgUser->getName() ) );
1104                         $ret .= " ($talkLink)<br />";
1105                         $ret .= $this->link(
1106                                 SpecialPage::getTitleFor( 'Userlogout' ), wfMsg( 'logout' ),
1107                                 array(), array( 'returnto' => $returnTo )
1108                         );
1109                         $ret .= ' | ' . $this->specialLink( 'preferences' );
1110                 }
1111                 $ret .= ' | ' . $this->link(
1112                         Title::newFromText( wfMsgForContent( 'helppage' ) ),
1113                         wfMsg( 'help' )
1114                 );
1115
1116                 return $ret;
1117         }
1118
1119         function getSearchLink() {
1120                 $searchPage = SpecialPage::getTitleFor( 'Search' );
1121                 return $searchPage->getLocalURL();
1122         }
1123
1124         function escapeSearchLink() {
1125                 return htmlspecialchars( $this->getSearchLink() );
1126         }
1127
1128         function searchForm() {
1129                 global $wgRequest;
1130                 $search = $wgRequest->getText( 'search' );
1131
1132                 $s = '<form id="searchform'.$this->searchboxes.'" name="search" class="inline" method="post" action="'
1133                   . $this->escapeSearchLink() . "\">\n"
1134                   . '<input type="text" id="searchInput'.$this->searchboxes.'" name="search" size="19" value="'
1135                   . htmlspecialchars(substr($search,0,256)) . "\" />\n"
1136                   . '<input type="submit" name="go" value="' . wfMsg ('searcharticle') . '" />&nbsp;'
1137                   . '<input type="submit" name="fulltext" value="' . wfMsg ('searchbutton') . "\" />\n</form>";
1138
1139                 // Ensure unique id's for search boxes made after the first
1140                 $this->searchboxes = $this->searchboxes == '' ? 2 : $this->searchboxes + 1;
1141
1142                 return $s;
1143         }
1144
1145         function topLinks() {
1146                 global $wgOut;
1147                 $sep = " |\n";
1148
1149                 $s = $this->mainPageLink() . $sep
1150                   . $this->specialLink( 'recentchanges' );
1151
1152                 if ( $wgOut->isArticleRelated() ) {
1153                         $s .=  $sep . $this->editThisPage()
1154                           . $sep . $this->historyLink();
1155                 }
1156                 # Many people don't like this dropdown box
1157                 #$s .= $sep . $this->specialPagesList();
1158
1159                 $s .= $this->variantLinks();
1160
1161                 $s .= $this->extensionTabLinks();
1162
1163                 return $s;
1164         }
1165
1166         /**
1167          * Compatibility for extensions adding functionality through tabs.
1168          * Eventually these old skins should be replaced with SkinTemplate-based
1169          * versions, sigh...
1170          * @return string
1171          */
1172         function extensionTabLinks() {
1173                 $tabs = array();
1174                 $s = '';
1175                 wfRunHooks( 'SkinTemplateTabs', array( $this, &$tabs ) );
1176                 foreach( $tabs as $tab ) {
1177                         $s .= ' | ' . Xml::element( 'a',
1178                                 array( 'href' => $tab['href'] ),
1179                                 $tab['text'] );
1180                 }
1181                 return $s;
1182         }
1183
1184         /**
1185          * Language/charset variant links for classic-style skins
1186          * @return string
1187          */
1188         function variantLinks() {
1189                 $s = '';
1190                 /* show links to different language variants */
1191                 global $wgDisableLangConversion, $wgContLang, $wgTitle;
1192                 $variants = $wgContLang->getVariants();
1193                 if( !$wgDisableLangConversion && sizeof( $variants ) > 1 ) {
1194                         foreach( $variants as $code ) {
1195                                 $varname = $wgContLang->getVariantname( $code );
1196                                 if( $varname == 'disable' )
1197                                         continue;
1198                                 $s .= ' | <a href="' . $wgTitle->escapeLocalUrl( 'variant=' . $code ) . '">' . htmlspecialchars( $varname ) . '</a>';
1199                         }
1200                 }
1201                 return $s;
1202         }
1203
1204         function bottomLinks() {
1205                 global $wgOut, $wgUser, $wgTitle, $wgUseTrackbacks;
1206                 $sep = " |\n";
1207
1208                 $s = '';
1209                 if ( $wgOut->isArticleRelated() ) {
1210                         $s .= '<strong>' . $this->editThisPage() . '</strong>';
1211                         if ( $wgUser->isLoggedIn() ) {
1212                                 $s .= $sep . $this->watchThisPage();
1213                         }
1214                         $s .= $sep . $this->talkLink()
1215                           . $sep . $this->historyLink()
1216                           . $sep . $this->whatLinksHere()
1217                           . $sep . $this->watchPageLinksLink();
1218
1219                         if ($wgUseTrackbacks)
1220                                 $s .= $sep . $this->trackbackLink();
1221
1222                         if ( $wgTitle->getNamespace() == NS_USER
1223                             || $wgTitle->getNamespace() == NS_USER_TALK )
1224
1225                         {
1226                                 $id=User::idFromName($wgTitle->getText());
1227                                 $ip=User::isIP($wgTitle->getText());
1228
1229                                 if($id || $ip) { # both anons and non-anons have contri list
1230                                         $s .= $sep . $this->userContribsLink();
1231                                 }
1232                                 if( $this->showEmailUser( $id ) ) {
1233                                         $s .= $sep . $this->emailUserLink();
1234                                 }
1235                         }
1236                         if ( $wgTitle->getArticleId() ) {
1237                                 $s .= "\n<br />";
1238                                 if($wgUser->isAllowed('delete')) { $s .= $this->deleteThisPage(); }
1239                                 if($wgUser->isAllowed('protect')) { $s .= $sep . $this->protectThisPage(); }
1240                                 if($wgUser->isAllowed('move')) { $s .= $sep . $this->moveThisPage(); }
1241                         }
1242                         $s .= "<br />\n" . $this->otherLanguages();
1243                 }
1244                 return $s;
1245         }
1246
1247         function pageStats() {
1248                 global $wgOut, $wgLang, $wgArticle, $wgRequest, $wgUser;
1249                 global $wgDisableCounters, $wgMaxCredits, $wgShowCreditsIfMax, $wgTitle, $wgPageShowWatchingUsers;
1250
1251                 $oldid = $wgRequest->getVal( 'oldid' );
1252                 $diff = $wgRequest->getVal( 'diff' );
1253                 if ( ! $wgOut->isArticle() ) { return ''; }
1254                 if ( isset( $oldid ) || isset( $diff ) ) { return ''; }
1255                 if ( 0 == $wgArticle->getID() ) { return ''; }
1256
1257                 $s = '';
1258                 if ( !$wgDisableCounters ) {
1259                         $count = $wgLang->formatNum( $wgArticle->getCount() );
1260                         if ( $count ) {
1261                                 $s = wfMsgExt( 'viewcount', array( 'parseinline' ), $count );
1262                         }
1263                 }
1264
1265                 if( $wgMaxCredits != 0 ){
1266                         $s .= ' ' . Credits::getCredits( $wgArticle, $wgMaxCredits, $wgShowCreditsIfMax );
1267                 } else {
1268                         $s .= $this->lastModified();
1269                 }
1270
1271                 if( $wgPageShowWatchingUsers && $wgUser->getOption( 'shownumberswatching' ) ) {
1272                         $dbr = wfGetDB( DB_SLAVE );
1273                         $watchlist = $dbr->tableName( 'watchlist' );
1274                         $sql = "SELECT COUNT(*) AS n FROM $watchlist
1275                                 WHERE wl_title='" . $dbr->strencode($wgTitle->getDBkey()) .
1276                                 "' AND  wl_namespace=" . $wgTitle->getNamespace() ;
1277                         $res = $dbr->query( $sql, 'Skin::pageStats');
1278                         $x = $dbr->fetchObject( $res );
1279
1280                         $s .= ' ' . wfMsgExt( 'number_of_watching_users_pageview',
1281                                 array( 'parseinline' ), $wgLang->formatNum($x->n)
1282                         );
1283                 }
1284
1285                 return $s . ' ' .  $this->getCopyright();
1286         }
1287
1288         function getCopyright( $type = 'detect' ) {
1289                 global $wgRightsPage, $wgRightsUrl, $wgRightsText, $wgRequest;
1290
1291                 if ( $type == 'detect' ) {
1292                         $oldid = $wgRequest->getVal( 'oldid' );
1293                         $diff = $wgRequest->getVal( 'diff' );
1294
1295                         if ( !is_null( $oldid ) && is_null( $diff ) && wfMsgForContent( 'history_copyright' ) !== '-' ) {
1296                                 $type = 'history';
1297                         } else {
1298                                 $type = 'normal';
1299                         }
1300                 }
1301
1302                 if ( $type == 'history' ) {
1303                         $msg = 'history_copyright';
1304                 } else {
1305                         $msg = 'copyright';
1306                 }
1307
1308                 $out = '';
1309                 if( $wgRightsPage ) {
1310                         $link = $this->makeKnownLink( $wgRightsPage, $wgRightsText );
1311                 } elseif( $wgRightsUrl ) {
1312                         $link = $this->makeExternalLink( $wgRightsUrl, $wgRightsText );
1313                 } elseif( $wgRightsText ) {
1314                         $link = $wgRightsText;
1315                 } else {
1316                         # Give up now
1317                         return $out;
1318                 }
1319                 $out .= wfMsgForContent( $msg, $link );
1320                 return $out;
1321         }
1322
1323         function getCopyrightIcon() {
1324                 global $wgRightsUrl, $wgRightsText, $wgRightsIcon, $wgCopyrightIcon;
1325                 $out = '';
1326                 if ( isset( $wgCopyrightIcon ) && $wgCopyrightIcon ) {
1327                         $out = $wgCopyrightIcon;
1328                 } else if ( $wgRightsIcon ) {
1329                         $icon = htmlspecialchars( $wgRightsIcon );
1330                         if ( $wgRightsUrl ) {
1331                                 $url = htmlspecialchars( $wgRightsUrl );
1332                                 $out .= '<a href="'.$url.'">';
1333                         }
1334                         $text = htmlspecialchars( $wgRightsText );
1335                         $out .= "<img src=\"$icon\" alt='$text' />";
1336                         if ( $wgRightsUrl ) {
1337                                 $out .= '</a>';
1338                         }
1339                 }
1340                 return $out;
1341         }
1342
1343         function getPoweredBy() {
1344                 global $wgStylePath;
1345                 $url = htmlspecialchars( "$wgStylePath/common/images/poweredby_mediawiki_88x31.png" );
1346                 $img = '<a href="http://www.mediawiki.org/"><img src="'.$url.'" alt="Powered by MediaWiki" /></a>';
1347                 return $img;
1348         }
1349
1350         function lastModified() {
1351                 global $wgLang, $wgArticle;
1352                 if( $this->mRevisionId ) {
1353                         $timestamp = Revision::getTimestampFromId( $this->mRevisionId, $wgArticle->getId() );
1354                 } else {
1355                         $timestamp = $wgArticle->getTimestamp();
1356                 }
1357                 if ( $timestamp ) {
1358                         $d = $wgLang->date( $timestamp, true );
1359                         $t = $wgLang->time( $timestamp, true );
1360                         $s = ' ' . wfMsg( 'lastmodifiedat', $d, $t );
1361                 } else {
1362                         $s = '';
1363                 }
1364                 if ( wfGetLB()->getLaggedSlaveMode() ) {
1365                         $s .= ' <strong>' . wfMsg( 'laggedslavemode' ) . '</strong>';
1366                 }
1367                 return $s;
1368         }
1369
1370         function logoText( $align = '' ) {
1371                 if ( '' != $align ) { $a = " align='{$align}'"; }
1372                 else { $a = ''; }
1373
1374                 $mp = wfMsg( 'mainpage' );
1375                 $mptitle = Title::newMainPage();
1376                 $url = ( is_object($mptitle) ? $mptitle->escapeLocalURL() : '' );
1377
1378                 $logourl = $this->getLogo();
1379                 $s = "<a href='{$url}'><img{$a} src='{$logourl}' alt='[{$mp}]' /></a>";
1380                 return $s;
1381         }
1382
1383         /**
1384          * show a drop-down box of special pages
1385          */
1386         function specialPagesList() {
1387                 global $wgUser, $wgContLang, $wgServer, $wgRedirectScript;
1388                 $pages = array_merge( SpecialPage::getRegularPages(), SpecialPage::getRestrictedPages() );
1389                 foreach ( $pages as $name => $page ) {
1390                         $pages[$name] = $page->getDescription();
1391                 }
1392
1393                 $go = wfMsg( 'go' );
1394                 $sp = wfMsg( 'specialpages' );
1395                 $spp = $wgContLang->specialPage( 'Specialpages' );
1396
1397                 $s = '<form id="specialpages" method="get" ' .
1398                   'action="' . htmlspecialchars( "{$wgServer}{$wgRedirectScript}" ) . "\">\n";
1399                 $s .= "<select name=\"wpDropdown\">\n";
1400                 $s .= "<option value=\"{$spp}\">{$sp}</option>\n";
1401
1402
1403                 foreach ( $pages as $name => $desc ) {
1404                         $p = $wgContLang->specialPage( $name );
1405                         $s .= "<option value=\"{$p}\">{$desc}</option>\n";
1406                 }
1407                 $s .= "</select>\n";
1408                 $s .= "<input type='submit' value=\"{$go}\" name='redirect' />\n";
1409                 $s .= "</form>\n";
1410                 return $s;
1411         }
1412
1413         function mainPageLink() {
1414                 $s = $this->makeKnownLinkObj( Title::newMainPage(), wfMsg( 'mainpage' ) );
1415                 return $s;
1416         }
1417
1418         function copyrightLink() {
1419                 $s = $this->makeKnownLink( wfMsgForContent( 'copyrightpage' ),
1420                   wfMsg( 'copyrightpagename' ) );
1421                 return $s;
1422         }
1423
1424         private function footerLink ( $desc, $page ) {
1425                 // if the link description has been set to "-" in the default language,
1426                 if ( wfMsgForContent( $desc )  == '-') {
1427                         // then it is disabled, for all languages.
1428                         return '';
1429                 } else {
1430                         // Otherwise, we display the link for the user, described in their
1431                         // language (which may or may not be the same as the default language),
1432                         // but we make the link target be the one site-wide page.
1433                         return $this->makeKnownLink( wfMsgForContent( $page ),
1434                                 wfMsgExt( $desc, array( 'parsemag', 'escapenoentities' ) ) );
1435                 }
1436         }
1437
1438         function privacyLink() {
1439                 return $this->footerLink( 'privacy', 'privacypage' );
1440         }
1441
1442         function aboutLink() {
1443                 return $this->footerLink( 'aboutsite', 'aboutpage' );
1444         }
1445
1446         function disclaimerLink() {
1447                 return $this->footerLink( 'disclaimers', 'disclaimerpage' );
1448         }
1449
1450         function editThisPage() {
1451                 global $wgOut, $wgTitle;
1452
1453                 if ( !$wgOut->isArticleRelated() ) {
1454                         $s = wfMsg( 'protectedpage' );
1455                 } else {
1456                         if( $wgTitle->quickUserCan( 'edit' ) && $wgTitle->exists() ) {
1457                                 $t = wfMsg( 'editthispage' );
1458                         } elseif( $wgTitle->quickUserCan( 'create' ) && !$wgTitle->exists() ) {
1459                                 $t = wfMsg( 'create-this-page' );
1460                         } else {
1461                                 $t = wfMsg( 'viewsource' );
1462                         }
1463
1464                         $s = $this->makeKnownLinkObj( $wgTitle, $t, $this->editUrlOptions() );
1465                 }
1466                 return $s;
1467         }
1468
1469         /**
1470          * Return URL options for the 'edit page' link.
1471          * This may include an 'oldid' specifier, if the current page view is such.
1472          *
1473          * @return string
1474          * @private
1475          */
1476         function editUrlOptions() {
1477                 global $wgArticle;
1478
1479                 if( $this->mRevisionId && ! $wgArticle->isCurrent() ) {
1480                         return "action=edit&oldid=" . intval( $this->mRevisionId );
1481                 } else {
1482                         return "action=edit";
1483                 }
1484         }
1485
1486         function deleteThisPage() {
1487                 global $wgUser, $wgTitle, $wgRequest;
1488
1489                 $diff = $wgRequest->getVal( 'diff' );
1490                 if ( $wgTitle->getArticleId() && ( ! $diff ) && $wgUser->isAllowed('delete') ) {
1491                         $t = wfMsg( 'deletethispage' );
1492
1493                         $s = $this->makeKnownLinkObj( $wgTitle, $t, 'action=delete' );
1494                 } else {
1495                         $s = '';
1496                 }
1497                 return $s;
1498         }
1499
1500         function protectThisPage() {
1501                 global $wgUser, $wgTitle, $wgRequest;
1502
1503                 $diff = $wgRequest->getVal( 'diff' );
1504                 if ( $wgTitle->getArticleId() && ( ! $diff ) && $wgUser->isAllowed('protect') ) {
1505                         if ( $wgTitle->isProtected() ) {
1506                                 $t = wfMsg( 'unprotectthispage' );
1507                                 $q = 'action=unprotect';
1508                         } else {
1509                                 $t = wfMsg( 'protectthispage' );
1510                                 $q = 'action=protect';
1511                         }
1512                         $s = $this->makeKnownLinkObj( $wgTitle, $t, $q );
1513                 } else {
1514                         $s = '';
1515                 }
1516                 return $s;
1517         }
1518
1519         function watchThisPage() {
1520                 global $wgOut, $wgTitle;
1521                 ++$this->mWatchLinkNum;
1522
1523                 if ( $wgOut->isArticleRelated() ) {
1524                         if ( $wgTitle->userIsWatching() ) {
1525                                 $t = wfMsg( 'unwatchthispage' );
1526                                 $q = 'action=unwatch';
1527                                 $id = "mw-unwatch-link".$this->mWatchLinkNum;
1528                         } else {
1529                                 $t = wfMsg( 'watchthispage' );
1530                                 $q = 'action=watch';
1531                                 $id = 'mw-watch-link'.$this->mWatchLinkNum;
1532                         }
1533                         $s = $this->makeKnownLinkObj( $wgTitle, $t, $q, '', '', " id=\"$id\"" );
1534                 } else {
1535                         $s = wfMsg( 'notanarticle' );
1536                 }
1537                 return $s;
1538         }
1539
1540         function moveThisPage() {
1541                 global $wgTitle;
1542
1543                 if ( $wgTitle->quickUserCan( 'move' ) ) {
1544                         return $this->makeKnownLinkObj( SpecialPage::getTitleFor( 'Movepage' ),
1545                           wfMsg( 'movethispage' ), 'target=' . $wgTitle->getPrefixedURL() );
1546                 } else {
1547                         // no message if page is protected - would be redundant
1548                         return '';
1549                 }
1550         }
1551
1552         function historyLink() {
1553                 global $wgTitle;
1554
1555                 return $this->makeKnownLinkObj( $wgTitle,
1556                   wfMsg( 'history' ), 'action=history' );
1557         }
1558
1559         function whatLinksHere() {
1560                 global $wgTitle;
1561
1562                 return $this->makeKnownLinkObj(
1563                         SpecialPage::getTitleFor( 'Whatlinkshere', $wgTitle->getPrefixedDBkey() ),
1564                         wfMsg( 'whatlinkshere' ) );
1565         }
1566
1567         function userContribsLink() {
1568                 global $wgTitle;
1569
1570                 return $this->makeKnownLinkObj(
1571                         SpecialPage::getTitleFor( 'Contributions', $wgTitle->getDBkey() ),
1572                         wfMsg( 'contributions' ) );
1573         }
1574
1575         function showEmailUser( $id ) {
1576                 global $wgUser;
1577                 $targetUser = User::newFromId( $id );
1578                 return  $wgUser->canSendEmail() && # the sending user must have a confirmed email address
1579                         $targetUser->canReceiveEmail(); # the target user must have a confirmed email address and allow emails from users
1580         }
1581
1582         function emailUserLink() {
1583                 global $wgTitle;
1584
1585                 return $this->makeKnownLinkObj(
1586                         SpecialPage::getTitleFor( 'Emailuser', $wgTitle->getDBkey() ),
1587                         wfMsg( 'emailuser' ) );
1588         }
1589
1590         function watchPageLinksLink() {
1591                 global $wgOut, $wgTitle;
1592
1593                 if ( ! $wgOut->isArticleRelated() ) {
1594                         return '(' . wfMsg( 'notanarticle' ) . ')';
1595                 } else {
1596                         return $this->makeKnownLinkObj(
1597                                 SpecialPage::getTitleFor( 'Recentchangeslinked', $wgTitle->getPrefixedDBkey() ),
1598                                 wfMsg( 'recentchangeslinked' ) );
1599                 }
1600         }
1601
1602         function trackbackLink() {
1603                 global $wgTitle;
1604
1605                 return "<a href=\"" . $wgTitle->trackbackURL() . "\">"
1606                         . wfMsg('trackbacklink') . "</a>";
1607         }
1608
1609         function otherLanguages() {
1610                 global $wgOut, $wgContLang, $wgHideInterlanguageLinks;
1611
1612                 if ( $wgHideInterlanguageLinks ) {
1613                         return '';
1614                 }
1615
1616                 $a = $wgOut->getLanguageLinks();
1617                 if ( 0 == count( $a ) ) {
1618                         return '';
1619                 }
1620
1621                 $s = wfMsg( 'otherlanguages' ) . ': ';
1622                 $first = true;
1623                 if($wgContLang->isRTL()) $s .= '<span dir="LTR">';
1624                 foreach( $a as $l ) {
1625                         if ( ! $first ) { $s .= ' | '; }
1626                         $first = false;
1627
1628                         $nt = Title::newFromText( $l );
1629                         $url = $nt->escapeFullURL();
1630                         $text = $wgContLang->getLanguageName( $nt->getInterwiki() );
1631
1632                         if ( '' == $text ) { $text = $l; }
1633                         $style = $this->getExternalLinkAttributes( $l, $text );
1634                         $s .= "<a href=\"{$url}\"{$style}>{$text}</a>";
1635                 }
1636                 if($wgContLang->isRTL()) $s .= '</span>';
1637                 return $s;
1638         }
1639
1640         function bugReportsLink() {
1641                 $s = $this->makeKnownLink( wfMsgForContent( 'bugreportspage' ),
1642                   wfMsg( 'bugreports' ) );
1643                 return $s;
1644         }
1645
1646         function talkLink() {
1647                 global $wgTitle;
1648
1649                 if ( NS_SPECIAL == $wgTitle->getNamespace() ) {
1650                         # No discussion links for special pages
1651                         return '';
1652                 }
1653
1654                 $linkOptions = array();
1655
1656                 if( $wgTitle->isTalkPage() ) {
1657                         $link = $wgTitle->getSubjectPage();
1658                         switch( $link->getNamespace() ) {
1659                                 case NS_MAIN:
1660                                         $text = wfMsg( 'articlepage' );
1661                                         break;
1662                                 case NS_USER:
1663                                         $text = wfMsg( 'userpage' );
1664                                         break;
1665                                 case NS_PROJECT:
1666                                         $text = wfMsg( 'projectpage' );
1667                                         break;
1668                                 case NS_IMAGE:
1669                                         $text = wfMsg( 'imagepage' );
1670                                         # Make link known if image exists, even if the desc. page doesn't.
1671                                         if( wfFindFile( $link ) )
1672                                                 $linkOptions[] = 'known';
1673                                         break;
1674                                 case NS_MEDIAWIKI:
1675                                         $text = wfMsg( 'mediawikipage' );
1676                                         break;
1677                                 case NS_TEMPLATE:
1678                                         $text = wfMsg( 'templatepage' );
1679                                         break;
1680                                 case NS_HELP:
1681                                         $text = wfMsg( 'viewhelppage' );
1682                                         break;
1683                                 case NS_CATEGORY:
1684                                         $text = wfMsg( 'categorypage' );
1685                                         break;
1686                                 default:
1687                                         $text = wfMsg( 'articlepage' );
1688                         }
1689                 } else {
1690                         $link = $wgTitle->getTalkPage();
1691                         $text = wfMsg( 'talkpage' );
1692                 }
1693
1694                 $s = $this->link( $link, $text, array(), array(), $linkOptions );
1695
1696                 return $s;
1697         }
1698
1699         function commentLink() {
1700                 global $wgTitle, $wgOut;
1701
1702                 if ( $wgTitle->getNamespace() == NS_SPECIAL ) {
1703                         return '';
1704                 }
1705
1706                 # __NEWSECTIONLINK___ changes behaviour here
1707                 # If it's present, the link points to this page, otherwise
1708                 # it points to the talk page
1709                 if( $wgTitle->isTalkPage() ) {
1710                         $title = $wgTitle;
1711                 } elseif( $wgOut->showNewSectionLink() ) {
1712                         $title = $wgTitle;
1713                 } else {
1714                         $title = $wgTitle->getTalkPage();
1715                 }
1716
1717                 return $this->makeKnownLinkObj( $title, wfMsg( 'postcomment' ), 'action=edit&section=new' );
1718         }
1719
1720         /* these are used extensively in SkinTemplate, but also some other places */
1721         static function makeMainPageUrl( $urlaction = '' ) {
1722                 $title = Title::newMainPage();
1723                 self::checkTitle( $title, '' );
1724                 return $title->getLocalURL( $urlaction );
1725         }
1726
1727         static function makeSpecialUrl( $name, $urlaction = '' ) {
1728                 $title = SpecialPage::getTitleFor( $name );
1729                 return $title->getLocalURL( $urlaction );
1730         }
1731
1732         static function makeSpecialUrlSubpage( $name, $subpage, $urlaction = '' ) {
1733                 $title = SpecialPage::getSafeTitleFor( $name, $subpage );
1734                 return $title->getLocalURL( $urlaction );
1735         }
1736
1737         static function makeI18nUrl( $name, $urlaction = '' ) {
1738                 $title = Title::newFromText( wfMsgForContent( $name ) );
1739                 self::checkTitle( $title, $name );
1740                 return $title->getLocalURL( $urlaction );
1741         }
1742
1743         static function makeUrl( $name, $urlaction = '' ) {
1744                 $title = Title::newFromText( $name );
1745                 self::checkTitle( $title, $name );
1746                 return $title->getLocalURL( $urlaction );
1747         }
1748
1749         # If url string starts with http, consider as external URL, else
1750         # internal
1751         static function makeInternalOrExternalUrl( $name ) {
1752                 if ( preg_match( '/^(?:' . wfUrlProtocols() . ')/', $name ) ) {
1753                         return $name;
1754                 } else {
1755                         return self::makeUrl( $name );
1756                 }
1757         }
1758
1759         # this can be passed the NS number as defined in Language.php
1760         static function makeNSUrl( $name, $urlaction = '', $namespace = NS_MAIN ) {
1761                 $title = Title::makeTitleSafe( $namespace, $name );
1762                 self::checkTitle( $title, $name );
1763                 return $title->getLocalURL( $urlaction );
1764         }
1765
1766         /* these return an array with the 'href' and boolean 'exists' */
1767         static function makeUrlDetails( $name, $urlaction = '' ) {
1768                 $title = Title::newFromText( $name );
1769                 self::checkTitle( $title, $name );
1770                 return array(
1771                         'href' => $title->getLocalURL( $urlaction ),
1772                         'exists' => $title->getArticleID() != 0 ? true : false
1773                 );
1774         }
1775
1776         /**
1777          * Make URL details where the article exists (or at least it's convenient to think so)
1778          */
1779         static function makeKnownUrlDetails( $name, $urlaction = '' ) {
1780                 $title = Title::newFromText( $name );
1781                 self::checkTitle( $title, $name );
1782                 return array(
1783                         'href' => $title->getLocalURL( $urlaction ),
1784                         'exists' => true
1785                 );
1786         }
1787
1788         # make sure we have some title to operate on
1789         static function checkTitle( &$title, $name ) {
1790                 if( !is_object( $title ) ) {
1791                         $title = Title::newFromText( $name );
1792                         if( !is_object( $title ) ) {
1793                                 $title = Title::newFromText( '--error: link target missing--' );
1794                         }
1795                 }
1796         }
1797
1798         /**
1799          * Build an array that represents the sidebar(s), the navigation bar among them
1800          *
1801          * @return array
1802          */
1803         function buildSidebar() {
1804                 global $parserMemc, $wgEnableSidebarCache, $wgSidebarCacheExpiry;
1805                 global $wgLang;
1806                 wfProfileIn( __METHOD__ );
1807
1808                 $key = wfMemcKey( 'sidebar', $wgLang->getCode() );
1809
1810                 if ( $wgEnableSidebarCache ) {
1811                         $cachedsidebar = $parserMemc->get( $key );
1812                         if ( $cachedsidebar ) {
1813                                 wfProfileOut( __METHOD__ );
1814                                 return $cachedsidebar;
1815                         }
1816                 }
1817
1818                 $bar = array();
1819                 $lines = explode( "\n", wfMsgForContent( 'sidebar' ) );
1820                 $heading = '';
1821                 foreach ($lines as $line) {
1822                         if (strpos($line, '*') !== 0)
1823                                 continue;
1824                         if (strpos($line, '**') !== 0) {
1825                                 $line = trim($line, '* ');
1826                                 $heading = $line;
1827                                 if( !array_key_exists($heading, $bar) ) $bar[$heading] = array();
1828                         } else {
1829                                 if (strpos($line, '|') !== false) { // sanity check
1830                                         $line = array_map('trim', explode( '|' , trim($line, '* '), 2 ) );
1831                                         $link = wfMsgForContent( $line[0] );
1832                                         if ($link == '-')
1833                                                 continue;
1834                                         if (wfEmptyMsg($line[1], $text = wfMsg($line[1])))
1835                                                 $text = $line[1];
1836                                         if (wfEmptyMsg($line[0], $link))
1837                                                 $link = $line[0];
1838
1839                                         if ( preg_match( '/^(?:' . wfUrlProtocols() . ')/', $link ) ) {
1840                                                 $href = $link;
1841                                         } else {
1842                                                 $title = Title::newFromText( $link );
1843                                                 if ( $title ) {
1844                                                         $title = $title->fixSpecialName();
1845                                                         $href = $title->getLocalURL();
1846                                                 } else {
1847                                                         $href = 'INVALID-TITLE';
1848                                                 }
1849                                         }
1850
1851                                         $bar[$heading][] = array(
1852                                                 'text' => $text,
1853                                                 'href' => $href,
1854                                                 'id' => 'n-' . strtr($line[1], ' ', '-'),
1855                                                 'active' => false
1856                                         );
1857                                 } else { continue; }
1858                         }
1859                 }
1860                 wfRunHooks('SkinBuildSidebar', array($this, &$bar));
1861                 if ( $wgEnableSidebarCache ) $parserMemc->set( $key, $bar, $wgSidebarCacheExpiry );
1862                 wfProfileOut( __METHOD__ );
1863                 return $bar;
1864         }
1865 }