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         // @fixme Should be protected :-\
  28         var $mTitle = null;
  29
  30         /** Constructor, call parent constructor */
  31         function Skin() { parent::__construct(); }
  32
  33         /**
  34          * Fetch the set of available skins.
  35          * @return array of strings
  36          * @static
  37          */
  38         static function getSkinNames() {
  39                 global $wgValidSkinNames;
  40                 static $skinsInitialised = false;
  41                 if ( !$skinsInitialised ) {
  42                         # Get a list of available skins
  43                         # Build using the regular expression '^(.*).php$'
  44                         # Array keys are all lower case, array value keep the case used by filename
  45                         #
  46                         wfProfileIn( __METHOD__ . '-init' );
  47                         global $wgStyleDirectory;
  48                         $skinDir = dir( $wgStyleDirectory );
  49
  50                         # while code from www.php.net
  51                         while( false !== ( $file = $skinDir->read() ) ) {
  52                                 // Skip non-PHP files, hidden files, and '.dep' includes
  53                                 $matches = array();
  54                                 if( preg_match( '/^([^.]*)\.php$/', $file, $matches ) ) {
  55                                         $aSkin = $matches[1];
  56                                         $wgValidSkinNames[strtolower($aSkin)] = $aSkin;
  57                                 }
  58                         }
  59                         $skinDir->close();
  60                         $skinsInitialised = true;
  61                         wfProfileOut( __METHOD__ . '-init' );
  62                 }
  63                 return $wgValidSkinNames;
  64         }
  65
  66         /**
  67          * Fetch the list of usable skins in regards to $wgSkipSkins.
  68          * Useful for Special:Preferences and other places where you
  69          * only want to show skins users _can_ use.
  70          * @return array of strings
  71          */
  72         public static function getUsableSkins() {
  73                 global $wgSkipSkins;
  74                 $usableSkins = self::getSkinNames();
  75                 foreach ( $wgSkipSkins as $skip ) {
  76                         unset( $usableSkins[$skip] );
  77                 }
  78                 return $usableSkins;
  79         }
  80
  81         /**
  82          * Normalize a skin preference value to a form that can be loaded.
  83          * If a skin can't be found, it will fall back to the configured
  84          * default (or the old 'Classic' skin if that's broken).
  85          * @param string $key
  86          * @return string
  87          * @static
  88          */
  89         static function normalizeKey( $key ) {
  90                 global $wgDefaultSkin;
  91                 $skinNames = Skin::getSkinNames();
  92
  93                 if( $key == '' ) {
  94                         // Don't return the default immediately;
  95                         // in a misconfiguration we need to fall back.
  96                         $key = $wgDefaultSkin;
  97                 }
  98
  99                 if( isset( $skinNames[$key] ) ) {
 100                         return $key;
 101                 }
 102
 103                 // Older versions of the software used a numeric setting
 104                 // in the user preferences.
 105                 $fallback = array(
 106                         0 => $wgDefaultSkin,
 107                         1 => 'nostalgia',
 108                         2 => 'cologneblue' );
 109
 110                 if( isset( $fallback[$key] ) ){
 111                         $key = $fallback[$key];
 112                 }
 113
 114                 if( isset( $skinNames[$key] ) ) {
 115                         return $key;
 116                 } else {
 117                         return 'monobook';
 118                 }
 119         }
 120
 121         /**
 122          * Factory method for loading a skin of a given type
 123          * @param string $key 'monobook', 'standard', etc
 124          * @return Skin
 125          * @static
 126          */
 127         static function &newFromKey( $key ) {
 128                 global $wgStyleDirectory;
 129
 130                 $key = Skin::normalizeKey( $key );
 131
 132                 $skinNames = Skin::getSkinNames();
 133                 $skinName = $skinNames[$key];
 134                 $className = 'Skin'.ucfirst($key);
 135
 136                 # Grab the skin class and initialise it.
 137                 if ( !class_exists( $className ) ) {
 138                         // Preload base classes to work around APC/PHP5 bug
 139                         $deps = "{$wgStyleDirectory}/{$skinName}.deps.php";
 140                         if( file_exists( $deps ) ) include_once( $deps );
 141                         require_once( "{$wgStyleDirectory}/{$skinName}.php" );
 142
 143                         # Check if we got if not failback to default skin
 144                         if( !class_exists( $className ) ) {
 145                                 # DO NOT die if the class isn't found. This breaks maintenance
 146                                 # scripts and can cause a user account to be unrecoverable
 147                                 # except by SQL manipulation if a previously valid skin name
 148                                 # is no longer valid.
 149                                 wfDebug( "Skin class does not exist: $className\n" );
 150                                 $className = 'SkinMonobook';
 151                                 require_once( "{$wgStyleDirectory}/MonoBook.php" );
 152                         }
 153                 }
 154                 $skin = new $className;
 155                 return $skin;
 156         }
 157
 158         /** @return string path to the skin stylesheet */
 159         function getStylesheet() {
 160                 return 'common/wikistandard.css';
 161         }
 162
 163         /** @return string skin name */
 164         public function getSkinName() {
 165                 return $this->skinname;
 166         }
 167
 168         function qbSetting() {
 169                 global $wgOut, $wgUser;
 170
 171                 if ( $wgOut->isQuickbarSuppressed() ) { return 0; }
 172                 $q = $wgUser->getOption( 'quickbar', 0 );
 173                 return $q;
 174         }
 175
 176         function initPage( OutputPage $out ) {
 177                 global $wgFavicon, $wgAppleTouchIcon;
 178
 179                 wfProfileIn( __METHOD__ );
 180
 181                 # Generally the order of the favicon and apple-touch-icon links
 182                 # should not matter, but Konqueror (3.5.9 at least) incorrectly
 183                 # uses whichever one appears later in the HTML source.  Make sure
 184                 # apple-touch-icon is specified first to avoid this.
 185                 if( false !== $wgAppleTouchIcon ) {
 186                         $out->addLink( array( 'rel' => 'apple-touch-icon', 'href' => $wgAppleTouchIcon ) );
 187                 }
 188
 189                 if( false !== $wgFavicon ) {
 190                         $out->addLink( array( 'rel' => 'shortcut icon', 'href' => $wgFavicon ) );
 191                 }
 192
 193                 # OpenSearch description link
 194                 $out->addLink( array(
 195                         'rel' => 'search',
 196                         'type' => 'application/opensearchdescription+xml',
 197                         'href' => wfScript( 'opensearch_desc' ),
 198                         'title' => wfMsgForContent( 'opensearch-desc' ),
 199                 ));
 200
 201                 $this->addMetadataLinks( $out );
 202
 203                 $this->mRevisionId = $out->mRevisionId;
 204
 205                 $this->preloadExistence();
 206
 207                 wfProfileOut( __METHOD__ );
 208         }
 209
 210         /**
 211          * Preload the existence of three commonly-requested pages in a single query
 212          */
 213         function preloadExistence() {
 214                 global $wgUser;
 215
 216                 // User/talk link
 217                 $titles = array( $wgUser->getUserPage(), $wgUser->getTalkPage() );
 218
 219                 // Other tab link
 220                 if ( $this->mTitle->getNamespace() == NS_SPECIAL ) {
 221                         // nothing
 222                 } elseif ( $this->mTitle->isTalkPage() ) {
 223                         $titles[] = $this->mTitle->getSubjectPage();
 224                 } else {
 225                         $titles[] = $this->mTitle->getTalkPage();
 226                 }
 227
 228                 $lb = new LinkBatch( $titles );
 229                 $lb->execute();
 230         }
 231
 232         function addMetadataLinks( OutputPage $out ) {
 233                 global $wgEnableDublinCoreRdf, $wgEnableCreativeCommonsRdf;
 234                 global $wgRightsPage, $wgRightsUrl;
 235
 236                 if( $out->isArticleRelated() ) {
 237                         # note: buggy CC software only reads first "meta" link
 238                         if( $wgEnableCreativeCommonsRdf ) {
 239                                 $out->addMetadataLink( array(
 240                                         'title' => 'Creative Commons',
 241                                         'type' => 'application/rdf+xml',
 242                                         'href' => $this->mTitle->getLocalURL( 'action=creativecommons' ) )
 243                                 );
 244                         }
 245                         if( $wgEnableDublinCoreRdf ) {
 246                                 $out->addMetadataLink( array(
 247                                         'title' => 'Dublin Core',
 248                                         'type' => 'application/rdf+xml',
 249                                         'href' => $this->mTitle->getLocalURL( 'action=dublincore' ) )
 250                                 );
 251                         }
 252                 }
 253                 $copyright = '';
 254                 if( $wgRightsPage ) {
 255                         $copy = Title::newFromText( $wgRightsPage );
 256                         if( $copy ) {
 257                                 $copyright = $copy->getLocalURL();
 258                         }
 259                 }
 260                 if( !$copyright && $wgRightsUrl ) {
 261                         $copyright = $wgRightsUrl;
 262                 }
 263                 if( $copyright ) {
 264                         $out->addLink( array(
 265                                 'rel' => 'copyright',
 266                                 'href' => $copyright )
 267                         );
 268                 }
 269         }
 270
 271         /**
 272          * Set some local variables
 273          */
 274         protected function setMembers(){
 275                 global $wgUser;
 276                 $this->mUser = $wgUser;
 277                 $this->userpage = $wgUser->getUserPage()->getPrefixedText();
 278                 $this->usercss = false;
 279         }
 280
 281         /**
 282          * Set the title
 283          * @param Title $t The title to use
 284          */
 285         public function setTitle( $t ) {
 286                 $this->mTitle = $t;
 287         }
 288
 289         /** Get the title */
 290         public function getTitle() {
 291                 return $this->mTitle;
 292         }
 293
 294         function outputPage( OutputPage $out ) {
 295                 global $wgDebugComments;
 296                 wfProfileIn( __METHOD__ );
 297
 298                 $this->setMembers();
 299                 $this->initPage( $out );
 300
 301                 // See self::afterContentHook() for documentation
 302                 $afterContent = $this->afterContentHook();
 303
 304                 $out->out( $out->headElement( $this ) );
 305
 306                 $out->out( "\n<body" );
 307                 $ops = $this->getBodyOptions();
 308                 foreach ( $ops as $name => $val ) {
 309                         $out->out( " $name='$val'" );
 310                 }
 311                 $out->out( ">\n" );
 312                 if ( $wgDebugComments ) {
 313                         $out->out( "<!-- Wiki debugging output:\n" .
 314                           $out->mDebugtext . "-->\n" );
 315                 }
 316
 317                 $out->out( $this->beforeContent() );
 318
 319                 $out->out( $out->mBodytext . "\n" );
 320
 321                 $out->out( $this->afterContent() );
 322
 323                 $out->out( $afterContent );
 324
 325                 $out->out( $this->bottomScripts() );
 326
 327                 $out->out( wfReportTime() );
 328
 329                 $out->out( "\n</body></html>" );
 330                 wfProfileOut( __METHOD__ );
 331         }
 332
 333         static function makeVariablesScript( $data ) {
 334                 global $wgJsMimeType;
 335
 336                 $r = array( "<script type=\"$wgJsMimeType\">/*<![CDATA[*/" );
 337                 foreach ( $data as $name => $value ) {
 338                         $encValue = Xml::encodeJsVar( $value );
 339                         $r[] = "var $name = $encValue;";
 340                 }
 341                 $r[] = "/*]]>*/</script>\n";
 342
 343                 return implode( "\n\t\t", $r );
 344         }
 345
 346         /**
 347          * Make a <script> tag containing global variables
 348          * @param array $data Associative array containing one element:
 349          *     skinname => the skin name
 350          * The odd calling convention is for backwards compatibility
 351          * @TODO @FIXME Make this not depend on $wgTitle!
 352          */
 353         static function makeGlobalVariablesScript( $data ) {
 354                 global $wgScript, $wgTitle, $wgStylePath, $wgUser;
 355                 global $wgArticlePath, $wgScriptPath, $wgServer, $wgContLang, $wgLang;
 356                 global $wgCanonicalNamespaceNames, $wgOut, $wgArticle;
 357                 global $wgBreakFrames, $wgRequest, $wgVariantArticlePath, $wgActionPaths;
 358                 global $wgUseAjax, $wgAjaxWatch;
 359                 global $wgVersion, $wgEnableAPI, $wgEnableWriteAPI;
 360                 global $wgRestrictionTypes, $wgLivePreview;
 361                 global $wgMWSuggestTemplate, $wgDBname, $wgEnableMWSuggest;
 362
 363                 $ns = $wgTitle->getNamespace();
 364                 $nsname = isset( $wgCanonicalNamespaceNames[ $ns ] ) ? $wgCanonicalNamespaceNames[ $ns ] : $wgTitle->getNsText();
 365                 $separatorTransTable = $wgContLang->separatorTransformTable();
 366                 $separatorTransTable = $separatorTransTable ? $separatorTransTable : array();
 367                 $compactSeparatorTransTable = array(
 368                         implode( "\t", array_keys( $separatorTransTable ) ),
 369                         implode( "\t", $separatorTransTable ),
 370                 );
 371                 $digitTransTable = $wgContLang->digitTransformTable();
 372                 $digitTransTable = $digitTransTable ? $digitTransTable : array();
 373                 $compactDigitTransTable = array(
 374                         implode( "\t", array_keys( $digitTransTable ) ),
 375                         implode( "\t", $digitTransTable ),
 376                 );
 377
 378                 $vars = array(
 379                         'skin' => $data['skinname'],
 380                         'stylepath' => $wgStylePath,
 381                         'wgArticlePath' => $wgArticlePath,
 382                         'wgScriptPath' => $wgScriptPath,
 383                         'wgScript' => $wgScript,
 384                         'wgVariantArticlePath' => $wgVariantArticlePath,
 385                         'wgActionPaths' => (object)$wgActionPaths,
 386                         'wgServer' => $wgServer,
 387                         'wgCanonicalNamespace' => $nsname,
 388                         'wgCanonicalSpecialPageName' => SpecialPage::resolveAlias( $wgTitle->getDBkey() ),
 389                         'wgNamespaceNumber' => $wgTitle->getNamespace(),
 390                         'wgPageName' => $wgTitle->getPrefixedDBKey(),
 391                         'wgTitle' => $wgTitle->getText(),
 392                         'wgAction' => $wgRequest->getText( 'action', 'view' ),
 393                         'wgArticleId' => $wgTitle->getArticleId(),
 394                         'wgIsArticle' => $wgOut->isArticle(),
 395                         'wgUserName' => $wgUser->isAnon() ? NULL : $wgUser->getName(),
 396                         'wgUserGroups' => $wgUser->isAnon() ? NULL : $wgUser->getEffectiveGroups(),
 397                         'wgUserLanguage' => $wgLang->getCode(),
 398                         'wgContentLanguage' => $wgContLang->getCode(),
 399                         'wgBreakFrames' => $wgBreakFrames,
 400                         'wgCurRevisionId' => isset( $wgArticle ) ? $wgArticle->getLatest() : 0,
 401                         'wgVersion' => $wgVersion,
 402                         'wgEnableAPI' => $wgEnableAPI,
 403                         'wgEnableWriteAPI' => $wgEnableWriteAPI,
 404                         'wgSeparatorTransformTable' => $compactSeparatorTransTable,
 405                         'wgDigitTransformTable' => $compactDigitTransTable,
 406                 );
 407
 408                 if( $wgUseAjax && $wgEnableMWSuggest && !$wgUser->getOption( 'disablesuggest', false ) ){
 409                         $vars['wgMWSuggestTemplate'] = SearchEngine::getMWSuggestTemplate();
 410                         $vars['wgDBname'] = $wgDBname;
 411                         $vars['wgSearchNamespaces'] = SearchEngine::userNamespaces( $wgUser );
 412                         $vars['wgMWSuggestMessages'] = array( wfMsg( 'search-mwsuggest-enabled' ), wfMsg( 'search-mwsuggest-disabled' ) );
 413                 }
 414
 415                 foreach( $wgRestrictionTypes as $type )
 416                         $vars['wgRestriction' . ucfirst( $type )] = $wgTitle->getRestrictions( $type );
 417
 418                 if ( $wgLivePreview && $wgUser->getOption( 'uselivepreview' ) ) {
 419                         $vars['wgLivepreviewMessageLoading'] = wfMsg( 'livepreview-loading' );
 420                         $vars['wgLivepreviewMessageReady']   = wfMsg( 'livepreview-ready' );
 421                         $vars['wgLivepreviewMessageFailed']  = wfMsg( 'livepreview-failed' );
 422                         $vars['wgLivepreviewMessageError']   = wfMsg( 'livepreview-error' );
 423                 }
 424
 425                 if ( $wgOut->isArticleRelated() && $wgUseAjax && $wgAjaxWatch && $wgUser->isLoggedIn() ) {
 426                         $msgs = (object)array();
 427                         foreach ( array( 'watch', 'unwatch', 'watching', 'unwatching' ) as $msgName ) {
 428                                 $msgs->{$msgName . 'Msg'} = wfMsg( $msgName );
 429                         }
 430                         $vars['wgAjaxWatch'] = $msgs;
 431                 }
 432
 433                 // Allow extensions to add their custom variables to the global JS variables
 434                 wfRunHooks( 'MakeGlobalVariablesScript', array( &$vars ) );
 435
 436                 return self::makeVariablesScript( $vars );
 437         }
 438
 439         function getHeadScripts( $allowUserJs ) {
 440                 global $wgStylePath, $wgUser, $wgJsMimeType, $wgStyleVersion;
 441
 442                 $vars = self::makeGlobalVariablesScript( array( 'skinname' => $this->getSkinName() ) );
 443
 444                 $r = array( "<script type=\"{$wgJsMimeType}\" src=\"{$wgStylePath}/common/wikibits.js?$wgStyleVersion\"></script>" );
 445                 global $wgUseSiteJs;
 446                 if( $wgUseSiteJs ) {
 447                         $jsCache = $wgUser->isLoggedIn() ? '&smaxage=0' : '';
 448                         $r[] = "<script type=\"$wgJsMimeType\" src=\"".
 449                                 htmlspecialchars( self::makeUrl( '-',
 450                                         "action=raw$jsCache&gen=js&useskin=" .
 451                                         urlencode( $this->getSkinName() ) ) ) .
 452                                 "\"><!-- site js --></script>";
 453                 }
 454                 if( $allowUserJs && $wgUser->isLoggedIn() ) {
 455                         $userpage = $wgUser->getUserPage();
 456                         $userjs = htmlspecialchars( self::makeUrl(
 457                                 $userpage->getPrefixedText().'/'.$this->getSkinName().'.js',
 458                                 'action=raw&ctype='.$wgJsMimeType ) );
 459                         $r[] = '<script type="'.$wgJsMimeType.'" src="'.$userjs."\"></script>";
 460                 }
 461                 return $vars . "\t\t" . implode ( "\n\t\t", $r );
 462         }
 463
 464         /**
 465          * To make it harder for someone to slip a user a fake
 466          * user-JavaScript or user-CSS preview, a random token
 467          * is associated with the login session. If it's not
 468          * passed back with the preview request, we won't render
 469          * the code.
 470          *
 471          * @param string $action
 472          * @return bool
 473          * @private
 474          */
 475         function userCanPreview( $action ) {
 476                 global $wgRequest, $wgUser;
 477
 478                 if( $action != 'submit' )
 479                         return false;
 480                 if( !$wgRequest->wasPosted() )
 481                         return false;
 482                 if( !$this->mTitle->userCanEditCssJsSubpage() )
 483                         return false;
 484                 return $wgUser->matchEditToken(
 485                         $wgRequest->getVal( 'wpEditToken' ) );
 486         }
 487
 488         /**
 489          * generated JavaScript action=raw&gen=js
 490          * This returns MediaWiki:Common.js and MediaWiki:[Skinname].js concate-
 491          * nated together.  For some bizarre reason, it does *not* return any
 492          * custom user JS from subpages.  Huh?
 493          *
 494          * There's absolutely no reason to have separate Monobook/Common JSes.
 495          * Any JS that cares can just check the skin variable generated at the
 496          * top.  For now Monobook.js will be maintained, but it should be consi-
 497          * dered deprecated.
 498          *
 499          * @return string
 500          */
 501         public function generateUserJs() {
 502                 global $wgStylePath;
 503
 504                 wfProfileIn( __METHOD__ );
 505
 506                 $s = "/* generated javascript */\n";
 507                 $s .= "var skin = '" . Xml::escapeJsString( $this->getSkinName() ) . "';\n";
 508                 $s .= "var stylepath = '" . Xml::escapeJsString( $wgStylePath ) . "';";
 509                 $s .= "\n\n/* MediaWiki:Common.js */\n";
 510                 $commonJs = wfMsgForContent( 'common.js' );
 511                 if ( !wfEmptyMsg( 'common.js', $commonJs ) ) {
 512                         $s .= $commonJs;
 513                 }
 514
 515                 $s .= "\n\n/* MediaWiki:".ucfirst( $this->getSkinName() ).".js */\n";
 516                 // avoid inclusion of non defined user JavaScript (with custom skins only)
 517                 // by checking for default message content
 518                 $msgKey = ucfirst( $this->getSkinName() ).'.js';
 519                 $userJS = wfMsgForContent( $msgKey );
 520                 if ( !wfEmptyMsg( $msgKey, $userJS ) ) {
 521                         $s .= $userJS;
 522                 }
 523
 524                 wfProfileOut( __METHOD__ );
 525                 return $s;
 526         }
 527
 528         /**
 529          * Generate user stylesheet for action=raw&gen=css
 530          */
 531         public function generateUserStylesheet() {
 532                 wfProfileIn( __METHOD__ );
 533                 $s = "/* generated user stylesheet */\n" .
 534                         $this->reallyGenerateUserStylesheet();
 535                 wfProfileOut( __METHOD__ );
 536                 return $s;
 537         }
 538
 539         /**
 540          * Split for easier subclassing in SkinSimple, SkinStandard and SkinCologneBlue
 541          */
 542         protected function reallyGenerateUserStylesheet(){
 543                 global $wgUser;
 544                 $s = '';
 545                 if( ( $undopt = $wgUser->getOption( 'underline' ) ) < 2 ) {
 546                         $underline = $undopt ? 'underline' : 'none';
 547                         $s .= "a { text-decoration: $underline; }\n";
 548                 }
 549                 if( $wgUser->getOption( 'highlightbroken' ) ) {
 550                         $s .= "a.new, #quickbar a.new { color: #CC2200; }\n";
 551                 } else {
 552                         $s .= <<<END
 553 a.new, #quickbar a.new,
 554 a.stub, #quickbar a.stub {
 555         color: inherit;
 556 }
 557 a.new:after, #quickbar a.new:after {
 558         content: "?";
 559         color: #CC2200;
 560 }
 561 a.stub:after, #quickbar a.stub:after {
 562         content: "!";
 563         color: #772233;
 564 }
 565 END;
 566                 }
 567                 if( $wgUser->getOption( 'justify' ) ) {
 568                         $s .= "#article, #bodyContent, #mw_content { text-align: justify; }\n";
 569                 }
 570                 if( !$wgUser->getOption( 'showtoc' ) ) {
 571                         $s .= "#toc { display: none; }\n";
 572                 }
 573                 if( !$wgUser->getOption( 'editsection' ) ) {
 574                         $s .= ".editsection { display: none; }\n";
 575                 }
 576                 return $s;
 577         }
 578
 579         /**
 580          * @private
 581          */
 582         function setupUserCss( OutputPage $out ) {
 583                 global $wgRequest, $wgContLang, $wgUser;
 584                 global $wgAllowUserCss, $wgUseSiteCss, $wgSquidMaxage, $wgStylePath;
 585
 586                 wfProfileIn( __METHOD__ );
 587
 588                 $this->setupSkinUserCss( $out );
 589
 590                 $siteargs = array(
 591                         'action' => 'raw',
 592                         'maxage' => $wgSquidMaxage,
 593                 );
 594
 595                 // Add any extension CSS
 596                 foreach( $out->getExtStyle() as $tag ) {
 597                         $out->addStyle( $tag['href'] );
 598                 }
 599
 600                 // If we use the site's dynamic CSS, throw that in, too
 601                 // Per-site custom styles
 602                 if( $wgUseSiteCss ) {
 603                         global $wgHandheldStyle;
 604                         $query = wfArrayToCGI( array(
 605                                 'usemsgcache' => 'yes',
 606                                 'ctype' => 'text/css',
 607                                 'smaxage' => $wgSquidMaxage
 608                         ) + $siteargs );
 609                         # Site settings must override extension css! (bug 15025)
 610                         $out->addStyle( self::makeNSUrl( 'Common.css', $query, NS_MEDIAWIKI ) );
 611                         $out->addStyle( self::makeNSUrl( 'Print.css', $query, NS_MEDIAWIKI ), 'print' );
 612                         if( $wgHandheldStyle ) {
 613                                 $out->addStyle( self::makeNSUrl( 'Handheld.css', $query, NS_MEDIAWIKI ), 'handheld' );
 614                         }
 615                         $out->addStyle( self::makeNSUrl( $this->getSkinName() . '.css', $query, NS_MEDIAWIKI ) );
 616                 }
 617
 618                 if( $wgUser->isLoggedIn() ) {
 619                         // Ensure that logged-in users' generated CSS isn't clobbered
 620                         // by anons' publicly cacheable generated CSS.
 621                         $siteargs['smaxage'] = '0';
 622                         $siteargs['ts'] = $wgUser->mTouched;
 623                 }
 624                 // Per-user styles based on preferences
 625                 $siteargs['gen'] = 'css';
 626                 if( ( $us = $wgRequest->getVal( 'useskin', '' ) ) !== '' ) {
 627                         $siteargs['useskin'] = $us;
 628                 }
 629                 $out->addStyle( self::makeUrl( '-', wfArrayToCGI( $siteargs ) ) );
 630
 631                 // Per-user custom style pages
 632                 if( $wgAllowUserCss && $wgUser->isLoggedIn() ) {
 633                         $action = $wgRequest->getVal( 'action' );
 634                         # If we're previewing the CSS page, use it
 635                         if( $this->mTitle->isCssSubpage() && $this->userCanPreview( $action ) ) {
 636                                 $previewCss = $wgRequest->getText( 'wpTextbox1' );
 637                                 // @FIXME: properly escape the cdata!
 638                                 $this->usercss = "/*<![CDATA[*/\n" . $previewCss . "/*]]>*/";
 639                         } else {
 640                                 $out->addStyle( self::makeUrl( $this->userpage . '/' . $this->getSkinName() .'.css',
 641                                         'action=raw&ctype=text/css' ) );
 642                         }
 643                 }
 644
 645                 wfProfileOut( __METHOD__ );
 646         }
 647
 648         /**
 649          * Add skin specific stylesheets
 650          * @param $out OutputPage
 651          */
 652         function setupSkinUserCss( OutputPage $out ) {
 653                 $out->addStyle( 'common/shared.css' );
 654                 $out->addStyle( 'common/oldshared.css' );
 655                 $out->addStyle( $this->getStylesheet() );
 656                 $out->addStyle( 'common/common_rtl.css', '', '', 'rtl' );
 657         }
 658
 659         function getBodyOptions() {
 660                 global $wgUser, $wgOut, $wgRequest, $wgContLang;
 661
 662                 extract( $wgRequest->getValues( 'oldid', 'redirect', 'diff' ) );
 663
 664                 if ( 0 != $this->mTitle->getNamespace() ) {
 665                         $a = array( 'bgcolor' => '#ffffec' );
 666                 }
 667                 else $a = array( 'bgcolor' => '#FFFFFF' );
 668                 if( $wgOut->isArticle() && $wgUser->getOption( 'editondblclick' ) &&
 669                   $this->mTitle->quickUserCan( 'edit' ) ) {
 670                         $s = $this->mTitle->getFullURL( $this->editUrlOptions() );
 671                         $s = 'document.location = "' .Xml::escapeJsString( $s ) .'";';
 672                         $a += array( 'ondblclick' => $s );
 673                 }
 674                 $a['onload'] = $wgOut->getOnloadHandler();
 675                 $a['class'] =
 676                         'mediawiki' .
 677                         ' '.( $wgContLang->isRTL() ? 'rtl' : 'ltr' ).
 678                         ' '.$this->getPageClasses( $this->mTitle ) .
 679                         ' skin-'. Sanitizer::escapeClass( $this->getSkinName() );
 680                 return $a;
 681         }
 682
 683         function getPageClasses( $title ) {
 684                 $numeric = 'ns-'.$title->getNamespace();
 685                 if( $title->getNamespace() == NS_SPECIAL ) {
 686                         $type = 'ns-special';
 687                 } elseif( $title->isTalkPage() ) {
 688                         $type = 'ns-talk';
 689                 } else {
 690                         $type = 'ns-subject';
 691                 }
 692                 $name = Sanitizer::escapeClass( 'page-'.$title->getPrefixedText() );
 693                 return "$numeric $type $name";
 694         }
 695
 696         /**
 697          * URL to the logo
 698          */
 699         function getLogo() {
 700                 global $wgLogo;
 701                 return $wgLogo;
 702         }
 703
 704         /**
 705          * This will be called immediately after the <body> tag.  Split into
 706          * two functions to make it easier to subclass.
 707          */
 708         function beforeContent() {
 709                 return $this->doBeforeContent();
 710         }
 711
 712         function doBeforeContent() {
 713                 global $wgContLang;
 714                 wfProfileIn( __METHOD__ );
 715
 716                 $s = '';
 717                 $qb = $this->qbSetting();
 718
 719                 if( $langlinks = $this->otherLanguages() ) {
 720                         $rows = 2;
 721                         $borderhack = '';
 722                 } else {
 723                         $rows = 1;
 724                         $langlinks = false;
 725                         $borderhack = 'class="top"';
 726                 }
 727
 728                 $s .= "\n<div id='content'>\n<div id='topbar'>\n" .
 729                   "<table border='0' cellspacing='0' width='98%'>\n<tr>\n";
 730
 731                 $shove = ( $qb != 0 );
 732                 $left = ( $qb == 1 || $qb == 3 );
 733                 if( $wgContLang->isRTL() ) $left = !$left;
 734
 735                 if( !$shove ) {
 736                         $s .= "<td class='top' align='left' valign='top' rowspan='{$rows}'>\n" .
 737                           $this->logoText() . '</td>';
 738                 } elseif( $left ) {
 739                         $s .= $this->getQuickbarCompensator( $rows );
 740                 }
 741                 $l = $wgContLang->isRTL() ? 'right' : 'left';
 742                 $s .= "<td {$borderhack} align='$l' valign='top'>\n";
 743
 744                 $s .= $this->topLinks();
 745                 $s .= "<p class='subtitle'>" . $this->pageTitleLinks() . "</p>\n";
 746
 747                 $r = $wgContLang->isRTL() ? 'left' : 'right';
 748                 $s .= "</td>\n<td {$borderhack} valign='top' align='$r' nowrap='nowrap'>";
 749                 $s .= $this->nameAndLogin();
 750                 $s .= "\n<br />" . $this->searchForm() . "</td>";
 751
 752                 if ( $langlinks ) {
 753                         $s .= "</tr>\n<tr>\n<td class='top' colspan=\"2\">$langlinks</td>\n";
 754                 }
 755
 756                 if ( $shove && !$left ) { # Right
 757                         $s .= $this->getQuickbarCompensator( $rows );
 758                 }
 759                 $s .= "</tr>\n</table>\n</div>\n";
 760                 $s .= "\n<div id='article'>\n";
 761
 762                 $notice = wfGetSiteNotice();
 763                 if( $notice ) {
 764                         $s .= "\n<div id='siteNotice'>$notice</div>\n";
 765                 }
 766                 $s .= $this->pageTitle();
 767                 $s .= $this->pageSubtitle();
 768                 $s .= $this->getCategories();
 769                 wfProfileOut( __METHOD__ );
 770                 return $s;
 771         }
 772
 773
 774         function getCategoryLinks() {
 775                 global $wgOut, $wgUseCategoryBrowser;
 776                 global $wgContLang, $wgUser;
 777
 778                 if( count( $wgOut->mCategoryLinks ) == 0 ) return '';
 779
 780                 # Separator
 781                 $sep = wfMsgExt( 'catseparator', array( 'parsemag', 'escapenoentities' ) );
 782
 783                 // Use Unicode bidi embedding override characters,
 784                 // to make sure links don't smash each other up in ugly ways.
 785                 $dir = $wgContLang->isRTL() ? 'rtl' : 'ltr';
 786                 $embed = "<span dir='$dir'>";
 787                 $pop = '</span>';
 788
 789                 $allCats = $wgOut->getCategoryLinks();
 790                 $s = '';
 791                 $colon = wfMsgExt( 'colon-separator', 'escapenoentities' );
 792                 if ( !empty( $allCats['normal'] ) ) {
 793                         $t = $embed . implode( "{$pop} {$sep} {$embed}" , $allCats['normal'] ) . $pop;
 794
 795                         $msg = wfMsgExt( 'pagecategories', array( 'parsemag', 'escapenoentities' ), count( $allCats['normal'] ) );
 796                         $s .= '<div id="mw-normal-catlinks">' .
 797                                 $this->link( Title::newFromText( wfMsgForContent( 'pagecategorieslink' ) ), $msg )
 798                                 . $colon . $t . '</div>';
 799                 }
 800
 801                 # Hidden categories
 802                 if ( isset( $allCats['hidden'] ) ) {
 803                         if ( $wgUser->getBoolOption( 'showhiddencats' ) ) {
 804                                 $class ='mw-hidden-cats-user-shown';
 805                         } elseif ( $this->mTitle->getNamespace() == NS_CATEGORY ) {
 806                                 $class = 'mw-hidden-cats-ns-shown';
 807                         } else {
 808                                 $class = 'mw-hidden-cats-hidden';
 809                         }
 810                         $s .= "<div id=\"mw-hidden-catlinks\" class=\"$class\">" .
 811                                 wfMsgExt( 'hidden-categories', array( 'parsemag', 'escapenoentities' ), count( $allCats['hidden'] ) ) .
 812                                 $colon . $embed . implode( "$pop $sep $embed", $allCats['hidden'] ) . $pop .
 813                                 "</div>";
 814                 }
 815
 816                 # optional 'dmoz-like' category browser. Will be shown under the list
 817                 # of categories an article belong to
 818                 if( $wgUseCategoryBrowser ){
 819                         $s .= '<br /><hr />';
 820
 821                         # get a big array of the parents tree
 822                         $parenttree = $this->mTitle->getParentCategoryTree();
 823                         # Skin object passed by reference cause it can not be
 824                         # accessed under the method subfunction drawCategoryBrowser
 825                         $tempout = explode( "\n", Skin::drawCategoryBrowser( $parenttree, $this ) );
 826                         # Clean out bogus first entry and sort them
 827                         unset( $tempout[0] );
 828                         asort( $tempout );
 829                         # Output one per line
 830                         $s .= implode( "<br />\n", $tempout );
 831                 }
 832
 833                 return $s;
 834         }
 835
 836         /**
 837          * Render the array as a serie of links.
 838          * @param $tree Array: categories tree returned by Title::getParentCategoryTree
 839          * @param &skin Object: skin passed by reference
 840          * @return String separated by &gt;, terminate with "\n"
 841          */
 842         function drawCategoryBrowser( $tree, &$skin ){
 843                 $return = '';
 844                 foreach( $tree as $element => $parent ) {
 845                         if( empty( $parent ) ) {
 846                                 # element start a new list
 847                                 $return .= "\n";
 848                         } else {
 849                                 # grab the others elements
 850                                 $return .= Skin::drawCategoryBrowser( $parent, $skin ) . ' &gt; ';
 851                         }
 852                         # add our current element to the list
 853                         $eltitle = Title::newFromText( $element );
 854                         $return .=  $skin->link( $eltitle, $eltitle->getText() );
 855                 }
 856                 return $return;
 857         }
 858
 859         function getCategories() {
 860                 $catlinks=$this->getCategoryLinks();
 861
 862                 $classes = 'catlinks';
 863
 864                 if( strpos( $catlinks, '<div id="mw-normal-catlinks">' ) === false &&
 865                         strpos( $catlinks, '<div id="mw-hidden-catlinks" class="mw-hidden-cats-hidden">' ) !== false ) {
 866                         $classes .= ' catlinks-allhidden';
 867                 }
 868
 869                 if( !empty( $catlinks ) ){
 870                         return "<div id='catlinks' class='$classes'>{$catlinks}</div>";
 871                 }
 872         }
 873
 874         function getQuickbarCompensator( $rows = 1 ) {
 875                 return "<td width='152' rowspan='{$rows}'>&nbsp;</td>";
 876         }
 877
 878         /**
 879          * This runs a hook to allow extensions placing their stuff after content
 880          * and article metadata (e.g. categories).
 881          * Note: This function has nothing to do with afterContent().
 882          *
 883          * This hook is placed here in order to allow using the same hook for all
 884          * skins, both the SkinTemplate based ones and the older ones, which directly
 885          * use this class to get their data.
 886          *
 887          * The output of this function gets processed in SkinTemplate::outputPage() for
 888          * the SkinTemplate based skins, all other skins should directly echo it.
 889          *
 890          * Returns an empty string by default, if not changed by any hook function.
 891          */
 892         protected function afterContentHook() {
 893                 $data = '';
 894
 895                 if( wfRunHooks( 'SkinAfterContent', array( &$data ) ) ){
 896                         // adding just some spaces shouldn't toggle the output
 897                         // of the whole <div/>, so we use trim() here
 898                         if( trim( $data ) != '' ){
 899                                 // Doing this here instead of in the skins to
 900                                 // ensure that the div has the same ID in all
 901                                 // skins
 902                                 $data = "<div id='mw-data-after-content'>\n" .
 903                                         "\t$data\n" .
 904                                         "</div>\n";
 905                         }
 906                 } else {
 907                         wfDebug( "Hook SkinAfterContent changed output processing.\n" );
 908                 }
 909
 910                 return $data;
 911         }
 912
 913         /**
 914          * Generate debug data HTML for displaying at the bottom of the main content
 915          * area.
 916          * @return String HTML containing debug data, if enabled (otherwise empty).
 917          */
 918         protected function generateDebugHTML() {
 919                 global $wgShowDebug, $wgOut;
 920                 if ( $wgShowDebug ) {
 921                         $listInternals = str_replace( "\n", "</li>\n<li>", htmlspecialchars( $wgOut->mDebugtext ) );
 922                         return "\n<hr>\n<strong>Debug data:</strong><ul style=\"font-family:monospace;\"><li>" .
 923                                 $listInternals . "</li></ul>\n";
 924                 }
 925                 return '';
 926         }
 927
 928         /**
 929          * This gets called shortly before the </body> tag.
 930          * @return String HTML to be put before </body>
 931          */
 932         function afterContent() {
 933                 $printfooter = "<div class=\"printfooter\">\n" . $this->printFooter() . "</div>\n";
 934                 return $printfooter . $this->generateDebugHTML() . $this->doAfterContent();
 935         }
 936
 937         /**
 938          * This gets called shortly before the </body> tag.
 939          * @return String HTML-wrapped JS code to be put before </body>
 940          */
 941         function bottomScripts() {
 942                 global $wgJsMimeType;
 943                 $bottomScriptText = "\n\t\t<script type=\"$wgJsMimeType\">if (window.runOnloadHook) runOnloadHook();</script>\n";
 944                 wfRunHooks( 'SkinAfterBottomScripts', array( $this, &$bottomScriptText ) );
 945                 return $bottomScriptText;
 946         }
 947
 948         /** @return string Retrievied from HTML text */
 949         function printSource() {
 950                 $url = htmlspecialchars( $this->mTitle->getFullURL() );
 951                 return wfMsg( 'retrievedfrom', '<a href="'.$url.'">'.$url.'</a>' );
 952         }
 953
 954         function printFooter() {
 955                 return "<p>" .  $this->printSource() .
 956                         "</p>\n\n<p>" . $this->pageStats() . "</p>\n";
 957         }
 958
 959         /** overloaded by derived classes */
 960         function doAfterContent() { return '</div></div>'; }
 961
 962         function pageTitleLinks() {
 963                 global $wgOut, $wgUser, $wgRequest, $wgLang;
 964
 965                 $oldid = $wgRequest->getVal( 'oldid' );
 966                 $diff = $wgRequest->getVal( 'diff' );
 967                 $action = $wgRequest->getText( 'action' );
 968
 969                 $s[] = $this->printableLink();
 970                 $disclaimer = $this->disclaimerLink(); # may be empty
 971                 if( $disclaimer ) {
 972                         $s[] = $disclaimer;
 973                 }
 974                 $privacy = $this->privacyLink(); # may be empty too
 975                 if( $privacy ) {
 976                         $s[] = $privacy;
 977                 }
 978
 979                 if ( $wgOut->isArticleRelated() ) {
 980                         if ( $this->mTitle->getNamespace() == NS_FILE ) {
 981                                 $name = $this->mTitle->getDBkey();
 982                                 $image = wfFindFile( $this->mTitle );
 983                                 if( $image ) {
 984                                         $link = htmlspecialchars( $image->getURL() );
 985                                         $style = $this->getInternalLinkAttributes( $link, $name );
 986                                         $s[] = "<a href=\"{$link}\"{$style}>{$name}</a>";
 987                                 }
 988                         }
 989                 }
 990                 if ( 'history' == $action || isset( $diff ) || isset( $oldid ) ) {
 991                         $s[] .= $this->makeKnownLinkObj( $this->mTitle,
 992                                         wfMsg( 'currentrev' ) );
 993                 }
 994
 995                 if ( $wgUser->getNewtalk() ) {
 996                         # do not show "You have new messages" text when we are viewing our
 997                         # own talk page
 998                         if( !$this->mTitle->equals( $wgUser->getTalkPage() ) ) {
 999                                 $tl = $this->makeKnownLinkObj( $wgUser->getTalkPage(), wfMsgHtml( 'newmessageslink' ), 'redirect=no' );
1000                                 $dl = $this->makeKnownLinkObj( $wgUser->getTalkPage(), wfMsgHtml( 'newmessagesdifflink' ), 'diff=cur' );
1001                                 $s[] = '<strong>'. wfMsg( 'youhavenewmessages', $tl, $dl ) . '</strong>';
1002                                 # disable caching
1003                                 $wgOut->setSquidMaxage( 0 );
1004                                 $wgOut->enableClientCache( false );
1005                         }
1006                 }
1007
1008                 $undelete = $this->getUndeleteLink();
1009                 if( !empty( $undelete ) ) {
1010                         $s[] = $undelete;
1011                 }
1012                 return $wgLang->pipeList( $s );
1013         }
1014
1015         function getUndeleteLink() {
1016                 global $wgUser, $wgContLang, $wgLang, $wgRequest;
1017
1018                 $action = $wgRequest->getVal( 'action', 'view' );
1019
1020                 if ( $wgUser->isAllowed( 'deletedhistory' ) &&
1021                         ( $this->mTitle->getArticleId() == 0 || $action == 'history' ) &&
1022                         $n = $this->mTitle->isDeleted() ) {
1023                         if ( $wgUser->isAllowed( 'undelete' ) ) {
1024                                 $msg = 'thisisdeleted';
1025                         } else {
1026                                 $msg = 'viewdeleted';
1027                         }
1028                         return wfMsg( $msg,
1029                                 $this->makeKnownLinkObj(
1030                                         SpecialPage::getTitleFor( 'Undelete', $this->mTitle->getPrefixedDBkey() ),
1031                                         wfMsgExt( 'restorelink', array( 'parsemag', 'escape' ), $wgLang->formatNum( $n ) ) ) );
1032                 }
1033                 return '';
1034         }
1035
1036         function printableLink() {
1037                 global $wgOut, $wgFeedClasses, $wgRequest, $wgLang;
1038
1039                 $printurl = $wgRequest->escapeAppendQuery( 'printable=yes' );
1040
1041                 $s[] = "<a href=\"$printurl\" rel=\"alternate\">" . wfMsg( 'printableversion' ) . '</a>';
1042                 if( $wgOut->isSyndicated() ) {
1043                         foreach( $wgFeedClasses as $format => $class ) {
1044                                 $feedurl = $wgRequest->escapeAppendQuery( "feed=$format" );
1045                                 $s[] = "<a href=\"$feedurl\" rel=\"alternate\" type=\"application/{$format}+xml\""
1046                                                 . " class=\"feedlink\">" . wfMsgHtml( "feed-$format" ) . "</a>";
1047                         }
1048                 }
1049                 return $wgLang->pipeList( $s );
1050         }
1051
1052         function pageTitle() {
1053                 global $wgOut;
1054                 $s = '<h1 class="pagetitle">' . $wgOut->getPageTitle() . '</h1>';
1055                 return $s;
1056         }
1057
1058         function pageSubtitle() {
1059                 global $wgOut;
1060
1061                 $sub = $wgOut->getSubtitle();
1062                 if ( '' == $sub ) {
1063                         global $wgExtraSubtitle;
1064                         $sub = wfMsgExt( 'tagline', 'parsemag' ) . $wgExtraSubtitle;
1065                 }
1066                 $subpages = $this->subPageSubtitle();
1067                 $sub .= !empty( $subpages ) ? "</p><p class='subpages'>$subpages" : '';
1068                 $s = "<p class='subtitle'>{$sub}</p>\n";
1069                 return $s;
1070         }
1071
1072         function subPageSubtitle() {
1073                 $subpages = '';
1074                 if( !wfRunHooks( 'SkinSubPageSubtitle', array( &$subpages ) ) )
1075                         return $subpages;
1076
1077                 global $wgOut;
1078                 if( $wgOut->isArticle() && MWNamespace::hasSubpages( $this->mTitle->getNamespace() ) ) {
1079                         $ptext = $this->mTitle->getPrefixedText();
1080                         if( preg_match( '/\//', $ptext ) ) {
1081                                 $links = explode( '/', $ptext );
1082                                 array_pop( $links );
1083                                 $c = 0;
1084                                 $growinglink = '';
1085                                 $display = '';
1086                                 foreach( $links as $link ) {
1087                                         $growinglink .= $link;
1088                                         $display .= $link;
1089                                         $linkObj = Title::newFromText( $growinglink );
1090                                         if( is_object( $linkObj ) && $linkObj->exists() ){
1091                                                 $getlink = $this->makeKnownLinkObj( $linkObj, htmlspecialchars( $display ) );
1092                                                 $c++;
1093                                                 if( $c > 1 ) {
1094                                                         $subpages .= wfMsgExt( 'pipe-separator', 'escapenoentities' );
1095                                                 } else  {
1096                                                         $subpages .= '&lt; ';
1097                                                 }
1098                                                 $subpages .= $getlink;
1099                                                 $display = '';
1100                                         } else {
1101                                                 $display .= '/';
1102                                         }
1103                                         $growinglink .= '/';
1104                                 }
1105                         }
1106                 }
1107                 return $subpages;
1108         }
1109
1110         /**
1111          * Returns true if the IP should be shown in the header
1112          */
1113         function showIPinHeader() {
1114                 global $wgShowIPinHeader;
1115                 return $wgShowIPinHeader && session_id() != '';
1116         }
1117
1118         function nameAndLogin() {
1119                 global $wgUser, $wgLang, $wgContLang;
1120
1121                 $logoutPage = $wgContLang->specialPage( 'Userlogout' );
1122
1123                 $ret = '';
1124                 if ( $wgUser->isAnon() ) {
1125                         if( $this->showIPinHeader() ) {
1126                                 $name = wfGetIP();
1127
1128                                 $talkLink = $this->link( $wgUser->getTalkPage(),
1129                                         $wgLang->getNsText( NS_TALK ) );
1130
1131                                 $ret .= "$name ($talkLink)";
1132                         } else {
1133                                 $ret .= wfMsg( 'notloggedin' );
1134                         }
1135
1136                         $returnTo = $this->mTitle->getPrefixedDBkey();
1137                         $query = array();
1138                         if ( $logoutPage != $returnTo ) {
1139                                 $query['returnto'] = $returnTo;
1140                         }
1141
1142                         $loginlink = $wgUser->isAllowed( 'createaccount' )
1143                                 ? 'nav-login-createaccount'
1144                                 : 'login';
1145                         $ret .= "\n<br />" . $this->link(
1146                                 SpecialPage::getTitleFor( 'Userlogin' ),
1147                                 wfMsg( $loginlink ), array(), $query
1148                         );
1149                 } else {
1150                         $returnTo = $this->mTitle->getPrefixedDBkey();
1151                         $talkLink = $this->link( $wgUser->getTalkPage(),
1152                                 $wgLang->getNsText( NS_TALK ) );
1153
1154                         $ret .= $this->link( $wgUser->getUserPage(),
1155                                 htmlspecialchars( $wgUser->getName() ) );
1156                         $ret .= " ($talkLink)<br />";
1157                         $ret .= $wgLang->pipeList( array(
1158                                 $this->link(
1159                                         SpecialPage::getTitleFor( 'Userlogout' ), wfMsg( 'logout' ),
1160                                         array(), array( 'returnto' => $returnTo )
1161                                 ),
1162                                 $this->specialLink( 'preferences' ),
1163                         ) );
1164                 }
1165                 $ret = $wgLang->pipeList( array(
1166                         $ret,
1167                         $this->link(
1168                                 Title::newFromText( wfMsgForContent( 'helppage' ) ),
1169                                 wfMsg( 'help' )
1170                         ),
1171                 ) );
1172
1173                 return $ret;
1174         }
1175
1176         function getSearchLink() {
1177                 $searchPage = SpecialPage::getTitleFor( 'Search' );
1178                 return $searchPage->getLocalURL();
1179         }
1180
1181         function escapeSearchLink() {
1182                 return htmlspecialchars( $this->getSearchLink() );
1183         }
1184
1185         function searchForm() {
1186                 global $wgRequest, $wgUseTwoButtonsSearchForm;
1187                 $search = $wgRequest->getText( 'search' );
1188
1189                 $s = '<form id="searchform'.$this->searchboxes.'" name="search" class="inline" method="post" action="'
1190                   . $this->escapeSearchLink() . "\">\n"
1191                   . '<input type="text" id="searchInput'.$this->searchboxes.'" name="search" size="19" value="'
1192                   . htmlspecialchars( substr( $search, 0, 256 ) ) . "\" />\n"
1193                   . '<input type="submit" name="go" value="' . wfMsg( 'searcharticle' ) . '" />';
1194
1195                 if( $wgUseTwoButtonsSearchForm )
1196                         $s .= '&nbsp;<input type="submit" name="fulltext" value="' . wfMsg( 'searchbutton' ) . "\" />\n";
1197                 else
1198                         $s .= ' <a href="' . $this->escapeSearchLink() . '" rel="search">' . wfMsg( 'powersearch-legend' ) . "</a>\n";
1199
1200                 $s .= '</form>';
1201
1202                 // Ensure unique id's for search boxes made after the first
1203                 $this->searchboxes = $this->searchboxes == '' ? 2 : $this->searchboxes + 1;
1204
1205                 return $s;
1206         }
1207
1208         function topLinks() {
1209                 global $wgOut;
1210
1211                 $s = array(
1212                         $this->mainPageLink(),
1213                         $this->specialLink( 'recentchanges' )
1214                 );
1215
1216                 if ( $wgOut->isArticleRelated() ) {
1217                         $s[] = $this->editThisPage();
1218                         $s[] = $this->historyLink();
1219                 }
1220                 # Many people don't like this dropdown box
1221                 #$s[] = $this->specialPagesList();
1222
1223                 if( $this->variantLinks() ) {
1224                         $s[] = $this->variantLinks();
1225                 }
1226
1227                 if( $this->extensionTabLinks() ) {
1228                         $s[] = $this->extensionTabLinks();
1229                 }
1230
1231                 // FIXME: Is using Language::pipeList impossible here? Do not quite understand the use of the newline
1232                 return implode( $s, wfMsgExt( 'pipe-separator', 'escapenoentities' ) . "\n" );
1233         }
1234
1235         /**
1236          * Compatibility for extensions adding functionality through tabs.
1237          * Eventually these old skins should be replaced with SkinTemplate-based
1238          * versions, sigh...
1239          * @return string
1240          */
1241         function extensionTabLinks() {
1242                 $tabs = array();
1243                 $out = '';
1244                 $s = array();
1245                 wfRunHooks( 'SkinTemplateTabs', array( $this, &$tabs ) );
1246                 foreach( $tabs as $tab ) {
1247                         $s[] = Xml::element( 'a',
1248                                 array( 'href' => $tab['href'] ),
1249                                 $tab['text'] );
1250                 }
1251
1252                 if( count( $s ) ) {
1253                         global $wgLang;
1254
1255                         $out = wfMsgExt( 'pipe-separator' , 'escapenoentities' );
1256                         $out .= $wgLang->pipeList( $s );
1257                 }
1258
1259                 return $out;
1260         }
1261
1262         /**
1263          * Language/charset variant links for classic-style skins
1264          * @return string
1265          */
1266         function variantLinks() {
1267                 $s = '';
1268                 /* show links to different language variants */
1269                 global $wgDisableLangConversion, $wgLang, $wgContLang;
1270                 $variants = $wgContLang->getVariants();
1271                 if( !$wgDisableLangConversion && sizeof( $variants ) > 1 ) {
1272                         foreach( $variants as $code ) {
1273                                 $varname = $wgContLang->getVariantname( $code );
1274                                 if( $varname == 'disable' )
1275                                         continue;
1276                                 $s = $wgLang->pipeList( array(
1277                                         $s,
1278                                         '<a href="' . $this->mTitle->escapeLocalUrl( 'variant=' . $code ) . '">' . htmlspecialchars( $varname ) . '</a>'
1279                                 ) );
1280                         }
1281                 }
1282                 return $s;
1283         }
1284
1285         function bottomLinks() {
1286                 global $wgOut, $wgUser, $wgUseTrackbacks;
1287                 $sep = wfMsgExt( 'pipe-separator', 'escapenoentities' ) . "\n";
1288
1289                 $s = '';
1290                 if ( $wgOut->isArticleRelated() ) {
1291                         $element[] = '<strong>' . $this->editThisPage() . '</strong>';
1292                         if ( $wgUser->isLoggedIn() ) {
1293                                 $element[] = $this->watchThisPage();
1294                         }
1295                         $element[] = $this->talkLink();
1296                         $element[] = $this->historyLink();
1297                         $element[] = $this->whatLinksHere();
1298                         $element[] = $this->watchPageLinksLink();
1299
1300                         if( $wgUseTrackbacks )
1301                                 $element[] = $this->trackbackLink();
1302
1303                         if ( $this->mTitle->getNamespace() == NS_USER
1304                             || $this->mTitle->getNamespace() == NS_USER_TALK ){
1305                                 $id = User::idFromName( $this->mTitle->getText() );
1306                                 $ip = User::isIP( $this->mTitle->getText() );
1307
1308                                 if( $id || $ip ) { # both anons and non-anons have contri list
1309                                         $element[] = $this->userContribsLink();
1310                                 }
1311                                 if( $this->showEmailUser( $id ) ) {
1312                                         $element[] = $this->emailUserLink();
1313                                 }
1314                         }
1315
1316                         $s = implode( $element, $sep );
1317
1318                         if ( $this->mTitle->getArticleId() ) {
1319                                 $s .= "\n<br />";
1320                                 if( $wgUser->isAllowed( 'delete' ) ) { $s .= $this->deleteThisPage(); }
1321                                 if( $wgUser->isAllowed( 'protect' ) ) { $s .= $sep . $this->protectThisPage(); }
1322                                 if( $wgUser->isAllowed( 'move' ) ) { $s .= $sep . $this->moveThisPage(); }
1323                         }
1324                         $s .= "<br />\n" . $this->otherLanguages();
1325                 }
1326
1327                 return $s;
1328         }
1329
1330         function pageStats() {
1331                 global $wgOut, $wgLang, $wgArticle, $wgRequest, $wgUser;
1332                 global $wgDisableCounters, $wgMaxCredits, $wgShowCreditsIfMax, $wgPageShowWatchingUsers;
1333
1334                 $oldid = $wgRequest->getVal( 'oldid' );
1335                 $diff = $wgRequest->getVal( 'diff' );
1336                 if ( ! $wgOut->isArticle() ) { return ''; }
1337                 if( !$wgArticle instanceOf Article ) { return ''; }
1338                 if ( isset( $oldid ) || isset( $diff ) ) { return ''; }
1339                 if ( 0 == $wgArticle->getID() ) { return ''; }
1340
1341                 $s = '';
1342                 if ( !$wgDisableCounters ) {
1343                         $count = $wgLang->formatNum( $wgArticle->getCount() );
1344                         if ( $count ) {
1345                                 $s = wfMsgExt( 'viewcount', array( 'parseinline' ), $count );
1346                         }
1347                 }
1348
1349                 if( $wgMaxCredits != 0 ){
1350                         $s .= ' ' . Credits::getCredits( $wgArticle, $wgMaxCredits, $wgShowCreditsIfMax );
1351                 } else {
1352                         $s .= $this->lastModified();
1353                 }
1354
1355                 if( $wgPageShowWatchingUsers && $wgUser->getOption( 'shownumberswatching' ) ) {
1356                         $dbr = wfGetDB( DB_SLAVE );
1357                         $res = $dbr->select( 'watchlist',
1358                                 array( 'COUNT(*) AS n' ),
1359                                 array( 'wl_title' => $dbr->strencode( $this->mTitle->getDBkey() ), 'wl_namespace' => $this->mTitle->getNamespace() ),
1360                                 __METHOD__
1361                         );
1362                         $x = $dbr->fetchObject( $res );
1363
1364                         $s .= ' ' . wfMsgExt( 'number_of_watching_users_pageview',
1365                                 array( 'parseinline' ), $wgLang->formatNum( $x->n )
1366                         );
1367                 }
1368
1369                 return $s . ' ' .  $this->getCopyright();
1370         }
1371
1372         function getCopyright( $type = 'detect' ) {
1373                 global $wgRightsPage, $wgRightsUrl, $wgRightsText, $wgRequest, $wgArticle;
1374
1375                 if ( $type == 'detect' ) {
1376                         $diff = $wgRequest->getVal( 'diff' );
1377                         $isCur = $wgArticle && $wgArticle->isCurrent();
1378                         if ( is_null( $diff ) && !$isCur && wfMsgForContent( 'history_copyright' ) !== '-' ) {
1379                                 $type = 'history';
1380                         } else {
1381                                 $type = 'normal';
1382                         }
1383                 }
1384
1385                 if ( $type == 'history' ) {
1386                         $msg = 'history_copyright';
1387                 } else {
1388                         $msg = 'copyright';
1389                 }
1390
1391                 $out = '';
1392                 if( $wgRightsPage ) {
1393                         $link = $this->makeKnownLink( $wgRightsPage, $wgRightsText );
1394                 } elseif( $wgRightsUrl ) {
1395                         $link = $this->makeExternalLink( $wgRightsUrl, $wgRightsText );
1396                 } elseif( $wgRightsText ) {
1397                         $link = $wgRightsText;
1398                 } else {
1399                         # Give up now
1400                         return $out;
1401                 }
1402                 $out .= wfMsgForContent( $msg, $link );
1403                 return $out;
1404         }
1405
1406         function getCopyrightIcon() {
1407                 global $wgRightsUrl, $wgRightsText, $wgRightsIcon, $wgCopyrightIcon;
1408                 $out = '';
1409                 if ( isset( $wgCopyrightIcon ) && $wgCopyrightIcon ) {
1410                         $out = $wgCopyrightIcon;
1411                 } else if ( $wgRightsIcon ) {
1412                         $icon = htmlspecialchars( $wgRightsIcon );
1413                         if ( $wgRightsUrl ) {
1414                                 $url = htmlspecialchars( $wgRightsUrl );
1415                                 $out .= '<a href="'.$url.'">';
1416                         }
1417                         $text = htmlspecialchars( $wgRightsText );
1418                         $out .= "<img src=\"$icon\" alt='$text' />";
1419                         if ( $wgRightsUrl ) {
1420                                 $out .= '</a>';
1421                         }
1422                 }
1423                 return $out;
1424         }
1425
1426         function getPoweredBy() {
1427                 global $wgStylePath;
1428                 $url = htmlspecialchars( "$wgStylePath/common/images/poweredby_mediawiki_88x31.png" );
1429                 $img = '<a href="http://www.mediawiki.org/"><img src="'.$url.'" alt="Powered by MediaWiki" /></a>';
1430                 return $img;
1431         }
1432
1433         function lastModified() {
1434                 global $wgLang, $wgArticle;
1435                 if( $this->mRevisionId ) {
1436                         $timestamp = Revision::getTimestampFromId( $wgArticle->getTitle(), $this->mRevisionId );
1437                 } else {
1438                         $timestamp = $wgArticle->getTimestamp();
1439                 }
1440                 if ( $timestamp ) {
1441                         $d = $wgLang->date( $timestamp, true );
1442                         $t = $wgLang->time( $timestamp, true );
1443                         $s = ' ' . wfMsg( 'lastmodifiedat', $d, $t );
1444                 } else {
1445                         $s = '';
1446                 }
1447                 if ( wfGetLB()->getLaggedSlaveMode() ) {
1448                         $s .= ' <strong>' . wfMsg( 'laggedslavemode' ) . '</strong>';
1449                 }
1450                 return $s;
1451         }
1452
1453         function logoText( $align = '' ) {
1454                 if ( '' != $align ) {
1455                         $a = " align='{$align}'";
1456                 } else {
1457                         $a = '';
1458                 }
1459
1460                 $mp = wfMsg( 'mainpage' );
1461                 $mptitle = Title::newMainPage();
1462                 $url = ( is_object( $mptitle ) ? $mptitle->escapeLocalURL() : '' );
1463
1464                 $logourl = $this->getLogo();
1465                 $s = "<a href='{$url}'><img{$a} src='{$logourl}' alt='[{$mp}]' /></a>";
1466                 return $s;
1467         }
1468
1469         /**
1470          * show a drop-down box of special pages
1471          */
1472         function specialPagesList() {
1473                 global $wgUser, $wgContLang, $wgServer, $wgRedirectScript;
1474                 $pages = array_merge( SpecialPage::getRegularPages(), SpecialPage::getRestrictedPages() );
1475                 foreach ( $pages as $name => $page ) {
1476                         $pages[$name] = $page->getDescription();
1477                 }
1478
1479                 $go = wfMsg( 'go' );
1480                 $sp = wfMsg( 'specialpages' );
1481                 $spp = $wgContLang->specialPage( 'Specialpages' );
1482
1483                 $s = '<form id="specialpages" method="get" ' .
1484                   'action="' . htmlspecialchars( "{$wgServer}{$wgRedirectScript}" ) . "\">\n";
1485                 $s .= "<select name=\"wpDropdown\">\n";
1486                 $s .= "<option value=\"{$spp}\">{$sp}</option>\n";
1487
1488
1489                 foreach ( $pages as $name => $desc ) {
1490                         $p = $wgContLang->specialPage( $name );
1491                         $s .= "<option value=\"{$p}\">{$desc}</option>\n";
1492                 }
1493                 $s .= "</select>\n";
1494                 $s .= "<input type='submit' value=\"{$go}\" name='redirect' />\n";
1495                 $s .= "</form>\n";
1496                 return $s;
1497         }
1498
1499         function mainPageLink() {
1500                 $s = $this->makeKnownLinkObj( Title::newMainPage(), wfMsg( 'mainpage' ) );
1501                 return $s;
1502         }
1503
1504         function copyrightLink() {
1505                 $s = $this->makeKnownLink( wfMsgForContent( 'copyrightpage' ),
1506                   wfMsg( 'copyrightpagename' ) );
1507                 return $s;
1508         }
1509
1510         private function footerLink ( $desc, $page ) {
1511                 // if the link description has been set to "-" in the default language,
1512                 if ( wfMsgForContent( $desc )  == '-') {
1513                         // then it is disabled, for all languages.
1514                         return '';
1515                 } else {
1516                         // Otherwise, we display the link for the user, described in their
1517                         // language (which may or may not be the same as the default language),
1518                         // but we make the link target be the one site-wide page.
1519                         return $this->makeKnownLink( wfMsgForContent( $page ),
1520                                 wfMsgExt( $desc, array( 'parsemag', 'escapenoentities' ) ) );
1521                 }
1522         }
1523
1524         function privacyLink() {
1525                 return $this->footerLink( 'privacy', 'privacypage' );
1526         }
1527
1528         function aboutLink() {
1529                 return $this->footerLink( 'aboutsite', 'aboutpage' );
1530         }
1531
1532         function disclaimerLink() {
1533                 return $this->footerLink( 'disclaimers', 'disclaimerpage' );
1534         }
1535
1536         function editThisPage() {
1537                 global $wgOut;
1538
1539                 if ( !$wgOut->isArticleRelated() ) {
1540                         $s = wfMsg( 'protectedpage' );
1541                 } else {
1542                         if( $this->mTitle->quickUserCan( 'edit' ) && $this->mTitle->exists() ) {
1543                                 $t = wfMsg( 'editthispage' );
1544                         } elseif( $this->mTitle->quickUserCan( 'create' ) && !$this->mTitle->exists() ) {
1545                                 $t = wfMsg( 'create-this-page' );
1546                         } else {
1547                                 $t = wfMsg( 'viewsource' );
1548                         }
1549
1550                         $s = $this->makeKnownLinkObj( $this->mTitle, $t, $this->editUrlOptions() );
1551                 }
1552                 return $s;
1553         }
1554
1555         /**
1556          * Return URL options for the 'edit page' link.
1557          * This may include an 'oldid' specifier, if the current page view is such.
1558          *
1559          * @return string
1560          * @private
1561          */
1562         function editUrlOptions() {
1563                 global $wgArticle;
1564
1565                 if( $this->mRevisionId && ! $wgArticle->isCurrent() ) {
1566                         return 'action=edit&oldid=' . intval( $this->mRevisionId );
1567                 } else {
1568                         return 'action=edit';
1569                 }
1570         }
1571
1572         function deleteThisPage() {
1573                 global $wgUser, $wgRequest;
1574
1575                 $diff = $wgRequest->getVal( 'diff' );
1576                 if ( $this->mTitle->getArticleId() && ( !$diff ) && $wgUser->isAllowed( 'delete' ) ) {
1577                         $t = wfMsg( 'deletethispage' );
1578
1579                         $s = $this->makeKnownLinkObj( $this->mTitle, $t, 'action=delete' );
1580                 } else {
1581                         $s = '';
1582                 }
1583                 return $s;
1584         }
1585
1586         function protectThisPage() {
1587                 global $wgUser, $wgRequest;
1588
1589                 $diff = $wgRequest->getVal( 'diff' );
1590                 if ( $this->mTitle->getArticleId() && ( ! $diff ) && $wgUser->isAllowed('protect') ) {
1591                         if ( $this->mTitle->isProtected() ) {
1592                                 $t = wfMsg( 'unprotectthispage' );
1593                                 $q = 'action=unprotect';
1594                         } else {
1595                                 $t = wfMsg( 'protectthispage' );
1596                                 $q = 'action=protect';
1597                         }
1598                         $s = $this->makeKnownLinkObj( $this->mTitle, $t, $q );
1599                 } else {
1600                         $s = '';
1601                 }
1602                 return $s;
1603         }
1604
1605         function watchThisPage() {
1606                 global $wgOut;
1607                 ++$this->mWatchLinkNum;
1608
1609                 if ( $wgOut->isArticleRelated() ) {
1610                         if ( $this->mTitle->userIsWatching() ) {
1611                                 $t = wfMsg( 'unwatchthispage' );
1612                                 $q = 'action=unwatch';
1613                                 $id = 'mw-unwatch-link' . $this->mWatchLinkNum;
1614                         } else {
1615                                 $t = wfMsg( 'watchthispage' );
1616                                 $q = 'action=watch';
1617                                 $id = 'mw-watch-link' . $this->mWatchLinkNum;
1618                         }
1619                         $s = $this->makeKnownLinkObj( $this->mTitle, $t, $q, '', '', " id=\"$id\"" );
1620                 } else {
1621                         $s = wfMsg( 'notanarticle' );
1622                 }
1623                 return $s;
1624         }
1625
1626         function moveThisPage() {
1627                 if ( $this->mTitle->quickUserCan( 'move' ) ) {
1628                         return $this->makeKnownLinkObj( SpecialPage::getTitleFor( 'Movepage' ),
1629                           wfMsg( 'movethispage' ), 'target=' . $this->mTitle->getPrefixedURL() );
1630                 } else {
1631                         // no message if page is protected - would be redundant
1632                         return '';
1633                 }
1634         }
1635
1636         function historyLink() {
1637                 return $this->link( $this->mTitle, wfMsg( 'history' ),
1638                         array( 'rel' => 'archives' ), array( 'action' => 'history' ) );
1639         }
1640
1641         function whatLinksHere() {
1642                 return $this->makeKnownLinkObj(
1643                         SpecialPage::getTitleFor( 'Whatlinkshere', $this->mTitle->getPrefixedDBkey() ),
1644                         wfMsg( 'whatlinkshere' ) );
1645         }
1646
1647         function userContribsLink() {
1648                 return $this->makeKnownLinkObj(
1649                         SpecialPage::getTitleFor( 'Contributions', $this->mTitle->getDBkey() ),
1650                         wfMsg( 'contributions' ) );
1651         }
1652
1653         function showEmailUser( $id ) {
1654                 global $wgUser;
1655                 $targetUser = User::newFromId( $id );
1656                 return  $wgUser->canSendEmail() && # the sending user must have a confirmed email address
1657                         $targetUser->canReceiveEmail(); # the target user must have a confirmed email address and allow emails from users
1658         }
1659
1660         function emailUserLink() {
1661                 return $this->makeKnownLinkObj(
1662                         SpecialPage::getTitleFor( 'Emailuser', $this->mTitle->getDBkey() ),
1663                         wfMsg( 'emailuser' ) );
1664         }
1665
1666         function watchPageLinksLink() {
1667                 global $wgOut;
1668                 if ( ! $wgOut->isArticleRelated() ) {
1669                         return '(' . wfMsg( 'notanarticle' ) . ')';
1670                 } else {
1671                         return $this->makeKnownLinkObj(
1672                                 SpecialPage::getTitleFor( 'Recentchangeslinked', $this->mTitle->getPrefixedDBkey() ),
1673                                 wfMsg( 'recentchangeslinked' ) );
1674                 }
1675         }
1676
1677         function trackbackLink() {
1678                 return '<a href="' . $this->mTitle->trackbackURL() . '">'
1679                         . wfMsg( 'trackbacklink' ) . '</a>';
1680         }
1681
1682         function otherLanguages() {
1683                 global $wgOut, $wgContLang, $wgHideInterlanguageLinks;
1684
1685                 if ( $wgHideInterlanguageLinks ) {
1686                         return '';
1687                 }
1688
1689                 $a = $wgOut->getLanguageLinks();
1690                 if ( 0 == count( $a ) ) {
1691                         return '';
1692                 }
1693
1694                 $s = wfMsg( 'otherlanguages' ) . wfMsg( 'colon-separator' );
1695                 $first = true;
1696                 if( $wgContLang->isRTL() ) $s .= '<span dir="LTR">';
1697                 foreach( $a as $l ) {
1698                         if ( !$first ) {
1699                                 $s .= wfMsgExt( 'pipe-separator', 'escapenoentities' );
1700                         }
1701                         $first = false;
1702
1703                         $nt = Title::newFromText( $l );
1704                         $url = $nt->escapeFullURL();
1705                         $text = $wgContLang->getLanguageName( $nt->getInterwiki() );
1706
1707                         if ( '' == $text ) { $text = $l; }
1708                         $style = $this->getExternalLinkAttributes( $l, $text );
1709                         $s .= "<a href=\"{$url}\"{$style}>{$text}</a>";
1710                 }
1711                 if( $wgContLang->isRTL() ) $s .= '</span>';
1712                 return $s;
1713         }
1714
1715         function talkLink() {
1716                 if ( NS_SPECIAL == $this->mTitle->getNamespace() ) {
1717                         # No discussion links for special pages
1718                         return '';
1719                 }
1720
1721                 $linkOptions = array();
1722
1723                 if( $this->mTitle->isTalkPage() ) {
1724                         $link = $this->mTitle->getSubjectPage();
1725                         switch( $link->getNamespace() ) {
1726                                 case NS_MAIN:
1727                                         $text = wfMsg( 'articlepage' );
1728                                         break;
1729                                 case NS_USER:
1730                                         $text = wfMsg( 'userpage' );
1731                                         break;
1732                                 case NS_PROJECT:
1733                                         $text = wfMsg( 'projectpage' );
1734                                         break;
1735                                 case NS_FILE:
1736                                         $text = wfMsg( 'imagepage' );
1737                                         # Make link known if image exists, even if the desc. page doesn't.
1738                                         if( wfFindFile( $link ) )
1739                                                 $linkOptions[] = 'known';
1740                                         break;
1741                                 case NS_MEDIAWIKI:
1742                                         $text = wfMsg( 'mediawikipage' );
1743                                         break;
1744                                 case NS_TEMPLATE:
1745                                         $text = wfMsg( 'templatepage' );
1746                                         break;
1747                                 case NS_HELP:
1748                                         $text = wfMsg( 'viewhelppage' );
1749                                         break;
1750                                 case NS_CATEGORY:
1751                                         $text = wfMsg( 'categorypage' );
1752                                         break;
1753                                 default:
1754                                         $text = wfMsg( 'articlepage' );
1755                         }
1756                 } else {
1757                         $link = $this->mTitle->getTalkPage();
1758                         $text = wfMsg( 'talkpage' );
1759                 }
1760
1761                 $s = $this->link( $link, $text, array(), array(), $linkOptions );
1762
1763                 return $s;
1764         }
1765
1766         function commentLink() {
1767                 global $wgOut;
1768
1769                 if ( $this->mTitle->getNamespace() == NS_SPECIAL ) {
1770                         return '';
1771                 }
1772
1773                 # __NEWSECTIONLINK___ changes behaviour here
1774                 # If it's present, the link points to this page, otherwise
1775                 # it points to the talk page
1776                 if( $this->mTitle->isTalkPage() ) {
1777                         $title = $this->mTitle;
1778                 } elseif( $wgOut->showNewSectionLink() ) {
1779                         $title = $this->mTitle;
1780                 } else {
1781                         $title = $this->mTitle->getTalkPage();
1782                 }
1783
1784                 return $this->makeKnownLinkObj( $title, wfMsg( 'postcomment' ), 'action=edit&section=new' );
1785         }
1786
1787         /* these are used extensively in SkinTemplate, but also some other places */
1788         static function makeMainPageUrl( $urlaction = '' ) {
1789                 $title = Title::newMainPage();
1790                 self::checkTitle( $title, '' );
1791                 return $title->getLocalURL( $urlaction );
1792         }
1793
1794         static function makeSpecialUrl( $name, $urlaction = '' ) {
1795                 $title = SpecialPage::getTitleFor( $name );
1796                 return $title->getLocalURL( $urlaction );
1797         }
1798
1799         static function makeSpecialUrlSubpage( $name, $subpage, $urlaction = '' ) {
1800                 $title = SpecialPage::getSafeTitleFor( $name, $subpage );
1801                 return $title->getLocalURL( $urlaction );
1802         }
1803
1804         static function makeI18nUrl( $name, $urlaction = '' ) {
1805                 $title = Title::newFromText( wfMsgForContent( $name ) );
1806                 self::checkTitle( $title, $name );
1807                 return $title->getLocalURL( $urlaction );
1808         }
1809
1810         static function makeUrl( $name, $urlaction = '' ) {
1811                 $title = Title::newFromText( $name );
1812                 self::checkTitle( $title, $name );
1813                 return $title->getLocalURL( $urlaction );
1814         }
1815
1816         # If url string starts with http, consider as external URL, else
1817         # internal
1818         static function makeInternalOrExternalUrl( $name ) {
1819                 if ( preg_match( '/^(?:' . wfUrlProtocols() . ')/', $name ) ) {
1820                         return $name;
1821                 } else {
1822                         return self::makeUrl( $name );
1823                 }
1824         }
1825
1826         # this can be passed the NS number as defined in Language.php
1827         static function makeNSUrl( $name, $urlaction = '', $namespace = NS_MAIN ) {
1828                 $title = Title::makeTitleSafe( $namespace, $name );
1829                 self::checkTitle( $title, $name );
1830                 return $title->getLocalURL( $urlaction );
1831         }
1832
1833         /* these return an array with the 'href' and boolean 'exists' */
1834         static function makeUrlDetails( $name, $urlaction = '' ) {
1835                 $title = Title::newFromText( $name );
1836                 self::checkTitle( $title, $name );
1837                 return array(
1838                         'href' => $title->getLocalURL( $urlaction ),
1839                         'exists' => $title->getArticleID() != 0 ? true : false
1840                 );
1841         }
1842
1843         /**
1844          * Make URL details where the article exists (or at least it's convenient to think so)
1845          */
1846         static function makeKnownUrlDetails( $name, $urlaction = '' ) {
1847                 $title = Title::newFromText( $name );
1848                 self::checkTitle( $title, $name );
1849                 return array(
1850                         'href' => $title->getLocalURL( $urlaction ),
1851                         'exists' => true
1852                 );
1853         }
1854
1855         # make sure we have some title to operate on
1856         static function checkTitle( &$title, $name ) {
1857                 if( !is_object( $title ) ) {
1858                         $title = Title::newFromText( $name );
1859                         if( !is_object( $title ) ) {
1860                                 $title = Title::newFromText( '--error: link target missing--' );
1861                         }
1862                 }
1863         }
1864
1865         /**
1866          * Build an array that represents the sidebar(s), the navigation bar among them
1867          *
1868          * @return array
1869          */
1870         function buildSidebar() {
1871                 global $parserMemc, $wgEnableSidebarCache, $wgSidebarCacheExpiry;
1872                 global $wgLang;
1873                 wfProfileIn( __METHOD__ );
1874
1875                 $key = wfMemcKey( 'sidebar', $wgLang->getCode() );
1876
1877                 if ( $wgEnableSidebarCache ) {
1878                         $cachedsidebar = $parserMemc->get( $key );
1879                         if ( $cachedsidebar ) {
1880                                 wfProfileOut( __METHOD__ );
1881                                 return $cachedsidebar;
1882                         }
1883                 }
1884
1885                 $bar = array();
1886                 $lines = explode( "\n", wfMsgForContent( 'sidebar' ) );
1887                 $heading = '';
1888                 foreach( $lines as $line ) {
1889                         if( strpos( $line, '*' ) !== 0 )
1890                                 continue;
1891                         if( strpos( $line, '**') !== 0 ) {
1892                                 $heading = trim( $line, '* ' );
1893                                 if( !array_key_exists( $heading, $bar ) ) $bar[$heading] = array();
1894                         } else {
1895                                 if( strpos( $line, '|' ) !== false ) { // sanity check
1896                                         $line = array_map( 'trim', explode( '|', trim( $line, '* ' ), 2 ) );
1897                                         $link = wfMsgForContent( $line[0] );
1898                                         if( $link == '-' )
1899                                                 continue;
1900
1901                                         $text = wfMsgExt( $line[1], 'parsemag' );
1902                                         if( wfEmptyMsg( $line[1], $text ) )
1903                                                 $text = $line[1];
1904                                         if( wfEmptyMsg( $line[0], $link ) )
1905                                                 $link = $line[0];
1906
1907                                         if ( preg_match( '/^(?:' . wfUrlProtocols() . ')/', $link ) ) {
1908                                                 $href = $link;
1909                                         } else {
1910                                                 $title = Title::newFromText( $link );
1911                                                 if ( $title ) {
1912                                                         $title = $title->fixSpecialName();
1913                                                         $href = $title->getLocalURL();
1914                                                 } else {
1915                                                         $href = 'INVALID-TITLE';
1916                                                 }
1917                                         }
1918
1919                                         $bar[$heading][] = array(
1920                                                 'text' => $text,
1921                                                 'href' => $href,
1922                                                 'id' => 'n-' . strtr( $line[1], ' ', '-' ),
1923                                                 'active' => false
1924                                         );
1925                                 } else { continue; }
1926                         }
1927                 }
1928                 wfRunHooks( 'SkinBuildSidebar', array( $this, &$bar ) );
1929                 if ( $wgEnableSidebarCache ) $parserMemc->set( $key, $bar, $wgSidebarCacheExpiry );
1930                 wfProfileOut( __METHOD__ );
1931                 return $bar;
1932         }
1933 }