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         // @todo 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                 if ( $wgDebugComments ) {
 307                         $out->out( "<!-- Wiki debugging output:\n" .
 308                           $out->mDebugtext . "-->\n" );
 309                 }
 310
 311                 $out->out( $this->beforeContent() );
 312
 313                 $out->out( $out->mBodytext . "\n" );
 314
 315                 $out->out( $this->afterContent() );
 316
 317                 $out->out( $afterContent );
 318
 319                 $out->out( $this->bottomScripts() );
 320
 321                 $out->out( wfReportTime() );
 322
 323                 $out->out( "\n</body></html>" );
 324                 wfProfileOut( __METHOD__ );
 325         }
 326
 327         static function makeVariablesScript( $data ) {
 328                 if( $data ) {
 329                         $r = array();
 330                         foreach ( $data as $name => $value ) {
 331                                 $encValue = Xml::encodeJsVar( $value );
 332                                 $r[] = "$name=$encValue";
 333                         }
 334                         $js = 'var ' . implode( ",\n", $r ) . ';';
 335                         return Html::inlineScript( "\n$js\n" );
 336                 } else {
 337                         return '';
 338                 }
 339         }
 340
 341         /**
 342          * Make a <script> tag containing global variables
 343          * @param $skinName string Name of the skin
 344          * The odd calling convention is for backwards compatibility
 345          * @TODO @FIXME Make this not depend on $wgTitle!
 346          */
 347         static function makeGlobalVariablesScript( $skinName ) {
 348                 if ( is_array( $skinName ) ) {
 349                         # Weird back-compat stuff.
 350                         $skinName = $skinName['skinname'];
 351                 }
 352                 global $wgScript, $wgTitle, $wgStylePath, $wgUser, $wgScriptExtension;
 353                 global $wgArticlePath, $wgScriptPath, $wgServer, $wgContLang, $wgLang;
 354                 global $wgOut, $wgArticle;
 355                 global $wgBreakFrames, $wgRequest, $wgVariantArticlePath, $wgActionPaths;
 356                 global $wgUseAjax, $wgAjaxWatch;
 357                 global $wgVersion, $wgEnableAPI, $wgEnableWriteAPI;
 358                 global $wgRestrictionTypes;
 359                 global $wgMWSuggestTemplate, $wgDBname, $wgEnableMWSuggest;
 360                 global $wgSitename;
 361
 362                 $ns = $wgTitle->getNamespace();
 363                 $nsname = MWNamespace::exists( $ns ) ? MWNamespace::getCanonicalName( $ns ) : $wgTitle->getNsText();
 364                 $separatorTransTable = $wgContLang->separatorTransformTable();
 365                 $separatorTransTable = $separatorTransTable ? $separatorTransTable : array();
 366                 $compactSeparatorTransTable = array(
 367                         implode( "\t", array_keys( $separatorTransTable ) ),
 368                         implode( "\t", $separatorTransTable ),
 369                 );
 370                 $digitTransTable = $wgContLang->digitTransformTable();
 371                 $digitTransTable = $digitTransTable ? $digitTransTable : array();
 372                 $compactDigitTransTable = array(
 373                         implode( "\t", array_keys( $digitTransTable ) ),
 374                         implode( "\t", $digitTransTable ),
 375                 );
 376
 377                 $mainPage = Title::newFromText( wfMsgForContent( 'mainpage' ) );
 378                 $vars = array(
 379                         'skin' => $skinName,
 380                         'stylepath' => $wgStylePath,
 381                         'urlprotocols' => wfUrlProtocols(),
 382                         'wgArticlePath' => $wgArticlePath,
 383                         'wgScriptPath' => $wgScriptPath,
 384                         'wgScriptExtension' => $wgScriptExtension,
 385                         'wgScript' => $wgScript,
 386                         'wgVariantArticlePath' => $wgVariantArticlePath,
 387                         'wgActionPaths' => (object)$wgActionPaths,
 388                         'wgServer' => $wgServer,
 389                         'wgCanonicalNamespace' => $nsname,
 390                         'wgCanonicalSpecialPageName' => $ns == NS_SPECIAL ?
 391                                 SpecialPage::resolveAlias( $wgTitle->getDBkey() ) : false, # bug 21115
 392                         'wgNamespaceNumber' => $wgTitle->getNamespace(),
 393                         'wgPageName' => $wgTitle->getPrefixedDBKey(),
 394                         'wgTitle' => $wgTitle->getText(),
 395                         'wgAction' => $wgRequest->getText( 'action', 'view' ),
 396                         'wgArticleId' => $wgTitle->getArticleId(),
 397                         'wgIsArticle' => $wgOut->isArticle(),
 398                         'wgUserName' => $wgUser->isAnon() ? null : $wgUser->getName(),
 399                         'wgUserGroups' => $wgUser->isAnon() ? null : $wgUser->getEffectiveGroups(),
 400                         'wgUserLanguage' => $wgLang->getCode(),
 401                         'wgContentLanguage' => $wgContLang->getCode(),
 402                         'wgBreakFrames' => $wgBreakFrames,
 403                         'wgCurRevisionId' => isset( $wgArticle ) ? $wgArticle->getLatest() : 0,
 404                         'wgVersion' => $wgVersion,
 405                         'wgEnableAPI' => $wgEnableAPI,
 406                         'wgEnableWriteAPI' => $wgEnableWriteAPI,
 407                         'wgSeparatorTransformTable' => $compactSeparatorTransTable,
 408                         'wgDigitTransformTable' => $compactDigitTransTable,
 409                         'wgMainPageTitle' => $mainPage ? $mainPage->getPrefixedText() : null,
 410                         'wgFormattedNamespaces' => $wgContLang->getFormattedNamespaces(),
 411                         'wgNamespaceIds' => $wgContLang->getNamespaceIds(),
 412                         'wgSiteName' => $wgSitename,
 413                         'wgCategories' => $wgOut->getCategories(),
 414                 );
 415                 if ( $wgContLang->hasVariants() ) {
 416                         $vars['wgUserVariant'] = $wgContLang->getPreferredVariant();
 417                 }
 418
 419                 //if on upload page output the extension list & js_upload
 420                 if( SpecialPage::resolveAlias( $wgTitle->getDBkey() ) ==  "Upload" ) {
 421                         global $wgFileExtensions, $wgAjaxUploadInterface;
 422                         $vars['wgFileExtensions'] = $wgFileExtensions;
 423                 }
 424
 425                 if( $wgUseAjax && $wgEnableMWSuggest && !$wgUser->getOption( 'disablesuggest', false ) ){
 426                         $vars['wgMWSuggestTemplate'] = SearchEngine::getMWSuggestTemplate();
 427                         $vars['wgDBname'] = $wgDBname;
 428                         $vars['wgSearchNamespaces'] = SearchEngine::userNamespaces( $wgUser );
 429                         $vars['wgMWSuggestMessages'] = array( wfMsg( 'search-mwsuggest-enabled' ), wfMsg( 'search-mwsuggest-disabled' ) );
 430                 }
 431
 432                 foreach( $wgRestrictionTypes as $type )
 433                         $vars['wgRestriction' . ucfirst( $type )] = $wgTitle->getRestrictions( $type );
 434
 435                 if ( $wgOut->isArticleRelated() && $wgUseAjax && $wgAjaxWatch && $wgUser->isLoggedIn() ) {
 436                         $msgs = (object)array();
 437                         foreach ( array( 'watch', 'unwatch', 'watching', 'unwatching',
 438                                 'tooltip-ca-watch', 'tooltip-ca-unwatch' ) as $msgName ) {
 439                                 $msgs->{$msgName . 'Msg'} = wfMsg( $msgName );
 440                         }
 441                         $vars['wgAjaxWatch'] = $msgs;
 442                 }
 443
 444                 // Allow extensions to add their custom variables to the global JS variables
 445                 wfRunHooks( 'MakeGlobalVariablesScript', array( &$vars ) );
 446
 447                 return self::makeVariablesScript( $vars );
 448         }
 449
 450         /**
 451          * To make it harder for someone to slip a user a fake
 452          * user-JavaScript or user-CSS preview, a random token
 453          * is associated with the login session. If it's not
 454          * passed back with the preview request, we won't render
 455          * the code.
 456          *
 457          * @param string $action
 458          * @return bool
 459          */
 460         public function userCanPreview( $action ) {
 461                 global $wgRequest, $wgUser;
 462
 463                 if( $action != 'submit' )
 464                         return false;
 465                 if( !$wgRequest->wasPosted() )
 466                         return false;
 467                 if( !$this->mTitle->userCanEditCssSubpage() )
 468                         return false;
 469                 if( !$this->mTitle->userCanEditJsSubpage() )
 470                         return false;
 471                 return $wgUser->matchEditToken(
 472                         $wgRequest->getVal( 'wpEditToken' ) );
 473         }
 474
 475         /**
 476          * generated JavaScript action=raw&gen=js
 477          * This returns MediaWiki:Common.js and MediaWiki:[Skinname].js concate-
 478          * nated together.  For some bizarre reason, it does *not* return any
 479          * custom user JS from subpages.  Huh?
 480          *
 481          * There's absolutely no reason to have separate Monobook/Common JSes.
 482          * Any JS that cares can just check the skin variable generated at the
 483          * top.  For now Monobook.js will be maintained, but it should be consi-
 484          * dered deprecated.
 485          *
 486          * @param $force_skin string If set, overrides the skin name
 487          *
 488          * @return string
 489          */
 490         public function generateUserJs( $skinName = null ) {
 491                 global $wgStylePath;
 492
 493                 wfProfileIn( __METHOD__ );
 494                 if( !$skinName ) {
 495                         $skinName = $this->getSkinName();
 496                 }
 497
 498                 $s = "/* generated javascript */\n";
 499                 $s .= "var skin = '" . Xml::escapeJsString($skinName ) . "';\n";
 500                 $s .= "var stylepath = '" . Xml::escapeJsString( $wgStylePath ) . "';";
 501                 $s .= "\n\n/* MediaWiki:Common.js */\n";
 502                 $commonJs = wfMsgExt( 'common.js', 'content' );
 503                 if ( !wfEmptyMsg( 'common.js', $commonJs ) ) {
 504                         $s .= $commonJs;
 505                 }
 506
 507                 $s .= "\n\n/* MediaWiki:".ucfirst( $skinName ).".js */\n";
 508                 // avoid inclusion of non defined user JavaScript (with custom skins only)
 509                 // by checking for default message content
 510                 $msgKey = ucfirst( $skinName ) . '.js';
 511                 $userJS = wfMsgExt( $msgKey, 'content' );
 512                 if ( !wfEmptyMsg( $msgKey, $userJS ) ) {
 513                         $s .= $userJS;
 514                 }
 515
 516                 wfProfileOut( __METHOD__ );
 517                 return $s;
 518         }
 519
 520         /**
 521          * Generate user stylesheet for action=raw&gen=css
 522          */
 523         public function generateUserStylesheet() {
 524                 wfProfileIn( __METHOD__ );
 525                 $s = "/* generated user stylesheet */\n" .
 526                         $this->reallyGenerateUserStylesheet();
 527                 wfProfileOut( __METHOD__ );
 528                 return $s;
 529         }
 530
 531         /**
 532          * Split for easier subclassing in SkinSimple, SkinStandard and SkinCologneBlue
 533          */
 534         protected function reallyGenerateUserStylesheet(){
 535                 global $wgUser;
 536                 $s = '';
 537                 if( ( $undopt = $wgUser->getOption( 'underline' ) ) < 2 ) {
 538                         $underline = $undopt ? 'underline' : 'none';
 539                         $s .= "a { text-decoration: $underline; }\n";
 540                 }
 541                 if( $wgUser->getOption( 'highlightbroken' ) ) {
 542                         $s .= "a.new, #quickbar a.new { color: #CC2200; }\n";
 543                 } else {
 544                         $s .= <<<CSS
 545 a.new, #quickbar a.new,
 546 a.stub, #quickbar a.stub {
 547         color: inherit;
 548 }
 549 a.new:after, #quickbar a.new:after {
 550         content: "?";
 551         color: #CC2200;
 552 }
 553 a.stub:after, #quickbar a.stub:after {
 554         content: "!";
 555         color: #772233;
 556 }
 557 CSS;
 558                 }
 559                 if( $wgUser->getOption( 'justify' ) ) {
 560                         $s .= "#article, #bodyContent, #mw_content { text-align: justify; }\n";
 561                 }
 562                 if( !$wgUser->getOption( 'showtoc' ) ) {
 563                         $s .= "#toc { display: none; }\n";
 564                 }
 565                 if( !$wgUser->getOption( 'editsection' ) ) {
 566                         $s .= ".editsection { display: none; }\n";
 567                 }
 568                 $fontstyle = $wgUser->getOption( 'editfont' );
 569                 if ( $fontstyle !== 'default' ) {
 570                         $s .= "textarea { font-family: $fontstyle; }\n";
 571                 }
 572                 return $s;
 573         }
 574
 575         /**
 576          * @private
 577          */
 578         function setupUserCss( OutputPage $out ) {
 579                 global $wgRequest, $wgContLang, $wgUser;
 580                 global $wgAllowUserCss, $wgUseSiteCss, $wgSquidMaxage, $wgStylePath;
 581
 582                 wfProfileIn( __METHOD__ );
 583
 584                 $this->setupSkinUserCss( $out );
 585
 586                 $siteargs = array(
 587                         'action' => 'raw',
 588                         'maxage' => $wgSquidMaxage,
 589                 );
 590
 591                 // Add any extension CSS
 592                 foreach ( $out->getExtStyle() as $url ) {
 593                         $out->addStyle( $url );
 594                 }
 595
 596                 // If we use the site's dynamic CSS, throw that in, too
 597                 // Per-site custom styles
 598                 if( $wgUseSiteCss ) {
 599                         global $wgHandheldStyle;
 600                         $query = wfArrayToCGI( array(
 601                                 'usemsgcache' => 'yes',
 602                                 'ctype' => 'text/css',
 603                                 'smaxage' => $wgSquidMaxage
 604                         ) + $siteargs );
 605                         # Site settings must override extension css! (bug 15025)
 606                         $out->addStyle( self::makeNSUrl( 'Common.css', $query, NS_MEDIAWIKI ) );
 607                         $out->addStyle( self::makeNSUrl( 'Print.css', $query, NS_MEDIAWIKI ), 'print' );
 608                         if( $wgHandheldStyle ) {
 609                                 $out->addStyle( self::makeNSUrl( 'Handheld.css', $query, NS_MEDIAWIKI ), 'handheld' );
 610                         }
 611                         $out->addStyle( self::makeNSUrl( $this->getSkinName() . '.css', $query, NS_MEDIAWIKI ) );
 612                 }
 613
 614                 if( $wgUser->isLoggedIn() ) {
 615                         // Ensure that logged-in users' generated CSS isn't clobbered
 616                         // by anons' publicly cacheable generated CSS.
 617                         $siteargs['smaxage'] = '0';
 618                         $siteargs['ts'] = $wgUser->mTouched;
 619                 }
 620                 // Per-user styles based on preferences
 621                 $siteargs['gen'] = 'css';
 622                 if( ( $us = $wgRequest->getVal( 'useskin', '' ) ) !== '' ) {
 623                         $siteargs['useskin'] = $us;
 624                 }
 625                 $out->addStyle( self::makeUrl( '-', wfArrayToCGI( $siteargs ) ) );
 626
 627                 // Per-user custom style pages
 628                 if( $wgAllowUserCss && $wgUser->isLoggedIn() ) {
 629                         $action = $wgRequest->getVal( 'action' );
 630                         # If we're previewing the CSS page, use it
 631                         if( $this->mTitle->isCssSubpage() && $this->userCanPreview( $action ) ) {
 632                                 // @FIXME: properly escape the cdata!
 633                                 $out->addInlineStyle( $wgRequest->getText( 'wpTextbox1' ) );
 634                         } else {
 635                                 $out->addStyle( self::makeUrl( $this->userpage . '/' . $this->getSkinName() .'.css',
 636                                         'action=raw&ctype=text/css' ) );
 637                         }
 638                 }
 639
 640                 wfProfileOut( __METHOD__ );
 641         }
 642
 643         /**
 644          * Add skin specific stylesheets
 645          * @param $out OutputPage
 646          */
 647         function setupSkinUserCss( OutputPage $out ) {
 648                 $out->addStyle( 'common/shared.css' );
 649                 $out->addStyle( 'common/oldshared.css' );
 650                 $out->addStyle( $this->getStylesheet() );
 651                 $out->addStyle( 'common/common_rtl.css', '', '', 'rtl' );
 652         }
 653
 654         function getPageClasses( $title ) {
 655                 $numeric = 'ns-'.$title->getNamespace();
 656                 if( $title->getNamespace() == NS_SPECIAL ) {
 657                         $type = 'ns-special';
 658                 } elseif( $title->isTalkPage() ) {
 659                         $type = 'ns-talk';
 660                 } else {
 661                         $type = 'ns-subject';
 662                 }
 663                 $name = Sanitizer::escapeClass( 'page-'.$title->getPrefixedText() );
 664                 return "$numeric $type $name";
 665         }
 666
 667         /**
 668          * URL to the logo
 669          */
 670         function getLogo() {
 671                 global $wgLogo;
 672                 return $wgLogo;
 673         }
 674
 675         /**
 676          * This will be called immediately after the <body> tag.  Split into
 677          * two functions to make it easier to subclass.
 678          */
 679         function beforeContent() {
 680                 return $this->doBeforeContent();
 681         }
 682
 683         function doBeforeContent() {
 684                 global $wgContLang;
 685                 wfProfileIn( __METHOD__ );
 686
 687                 $s = '';
 688                 $qb = $this->qbSetting();
 689
 690                 if( $langlinks = $this->otherLanguages() ) {
 691                         $rows = 2;
 692                         $borderhack = '';
 693                 } else {
 694                         $rows = 1;
 695                         $langlinks = false;
 696                         $borderhack = 'class="top"';
 697                 }
 698
 699                 $s .= "\n<div id='content'>\n<div id='topbar'>\n" .
 700                   "<table border='0' cellspacing='0' width='98%'>\n<tr>\n";
 701
 702                 $shove = ( $qb != 0 );
 703                 $left = ( $qb == 1 || $qb == 3 );
 704                 if( $wgContLang->isRTL() ) $left = !$left;
 705
 706                 if( !$shove ) {
 707                         $s .= "<td class='top' align='left' valign='top' rowspan='{$rows}'>\n" .
 708                           $this->logoText() . '</td>';
 709                 } elseif( $left ) {
 710                         $s .= $this->getQuickbarCompensator( $rows );
 711                 }
 712                 $l = $wgContLang->alignStart();
 713                 $s .= "<td {$borderhack} align='$l' valign='top'>\n";
 714
 715                 $s .= $this->topLinks();
 716                 $s .= "<p class='subtitle'>" . $this->pageTitleLinks() . "</p>\n";
 717
 718                 $r = $wgContLang->alignEnd();
 719                 $s .= "</td>\n<td {$borderhack} valign='top' align='$r' nowrap='nowrap'>";
 720                 $s .= $this->nameAndLogin();
 721                 $s .= "\n<br />" . $this->searchForm() . "</td>";
 722
 723                 if ( $langlinks ) {
 724                         $s .= "</tr>\n<tr>\n<td class='top' colspan=\"2\">$langlinks</td>\n";
 725                 }
 726
 727                 if ( $shove && !$left ) { # Right
 728                         $s .= $this->getQuickbarCompensator( $rows );
 729                 }
 730                 $s .= "</tr>\n</table>\n</div>\n";
 731                 $s .= "\n<div id='article'>\n";
 732
 733                 $notice = wfGetSiteNotice();
 734                 if( $notice ) {
 735                         $s .= "\n<div id='siteNotice'>$notice</div>\n";
 736                 }
 737                 $s .= $this->pageTitle();
 738                 $s .= $this->pageSubtitle();
 739                 $s .= $this->getCategories();
 740                 wfProfileOut( __METHOD__ );
 741                 return $s;
 742         }
 743
 744
 745         function getCategoryLinks() {
 746                 global $wgOut, $wgUseCategoryBrowser;
 747                 global $wgContLang, $wgUser;
 748
 749                 if( count( $wgOut->mCategoryLinks ) == 0 ) return '';
 750
 751                 # Separator
 752                 $sep = wfMsgExt( 'catseparator', array( 'parsemag', 'escapenoentities' ) );
 753
 754                 // Use Unicode bidi embedding override characters,
 755                 // to make sure links don't smash each other up in ugly ways.
 756                 $dir = $wgContLang->getDir();
 757                 $embed = "<span dir='$dir'>";
 758                 $pop = '</span>';
 759
 760                 $allCats = $wgOut->getCategoryLinks();
 761                 $s = '';
 762                 $colon = wfMsgExt( 'colon-separator', 'escapenoentities' );
 763                 if ( !empty( $allCats['normal'] ) ) {
 764                         $t = $embed . implode( "{$pop} {$sep} {$embed}" , $allCats['normal'] ) . $pop;
 765
 766                         $msg = wfMsgExt( 'pagecategories', array( 'parsemag', 'escapenoentities' ), count( $allCats['normal'] ) );
 767                         $s .= '<div id="mw-normal-catlinks">' .
 768                                 $this->link( Title::newFromText( wfMsgForContent( 'pagecategorieslink' ) ), $msg )
 769                                 . $colon . $t . '</div>';
 770                 }
 771
 772                 # Hidden categories
 773                 if ( isset( $allCats['hidden'] ) ) {
 774                         if ( $wgUser->getBoolOption( 'showhiddencats' ) ) {
 775                                 $class ='mw-hidden-cats-user-shown';
 776                         } elseif ( $this->mTitle->getNamespace() == NS_CATEGORY ) {
 777                                 $class = 'mw-hidden-cats-ns-shown';
 778                         } else {
 779                                 $class = 'mw-hidden-cats-hidden';
 780                         }
 781                         $s .= "<div id=\"mw-hidden-catlinks\" class=\"$class\">" .
 782                                 wfMsgExt( 'hidden-categories', array( 'parsemag', 'escapenoentities' ), count( $allCats['hidden'] ) ) .
 783                                 $colon . $embed . implode( "$pop $sep $embed", $allCats['hidden'] ) . $pop .
 784                                 "</div>";
 785                 }
 786
 787                 # optional 'dmoz-like' category browser. Will be shown under the list
 788                 # of categories an article belong to
 789                 if( $wgUseCategoryBrowser ){
 790                         $s .= '<br /><hr />';
 791
 792                         # get a big array of the parents tree
 793                         $parenttree = $this->mTitle->getParentCategoryTree();
 794                         # Skin object passed by reference cause it can not be
 795                         # accessed under the method subfunction drawCategoryBrowser
 796                         $tempout = explode( "\n", Skin::drawCategoryBrowser( $parenttree, $this ) );
 797                         # Clean out bogus first entry and sort them
 798                         unset( $tempout[0] );
 799                         asort( $tempout );
 800                         # Output one per line
 801                         $s .= implode( "<br />\n", $tempout );
 802                 }
 803
 804                 return $s;
 805         }
 806
 807         /**
 808          * Render the array as a serie of links.
 809          * @param $tree Array: categories tree returned by Title::getParentCategoryTree
 810          * @param &skin Object: skin passed by reference
 811          * @return String separated by &gt;, terminate with "\n"
 812          */
 813         function drawCategoryBrowser( $tree, &$skin ){
 814                 $return = '';
 815                 foreach( $tree as $element => $parent ) {
 816                         if( empty( $parent ) ) {
 817                                 # element start a new list
 818                                 $return .= "\n";
 819                         } else {
 820                                 # grab the others elements
 821                                 $return .= Skin::drawCategoryBrowser( $parent, $skin ) . ' &gt; ';
 822                         }
 823                         # add our current element to the list
 824                         $eltitle = Title::newFromText( $element );
 825                         $return .=  $skin->link( $eltitle, $eltitle->getText() );
 826                 }
 827                 return $return;
 828         }
 829
 830         function getCategories() {
 831                 $catlinks = $this->getCategoryLinks();
 832
 833                 $classes = 'catlinks';
 834
 835                 // Check what we're showing
 836                 global $wgOut, $wgUser;
 837                 $allCats = $wgOut->getCategoryLinks();
 838                 $showHidden = $wgUser->getBoolOption( 'showhiddencats' ) ||
 839                                                 $this->mTitle->getNamespace() == NS_CATEGORY;
 840
 841                 if( empty($allCats['normal']) && !( !empty($allCats['hidden']) && $showHidden ) ) {
 842                         $classes .= ' catlinks-allhidden';
 843                 }
 844
 845                 return "<div id='catlinks' class='$classes'>{$catlinks}</div>";
 846         }
 847
 848         function getQuickbarCompensator( $rows = 1 ) {
 849                 return "<td width='152' rowspan='{$rows}'>&nbsp;</td>";
 850         }
 851
 852         /**
 853          * This runs a hook to allow extensions placing their stuff after content
 854          * and article metadata (e.g. categories).
 855          * Note: This function has nothing to do with afterContent().
 856          *
 857          * This hook is placed here in order to allow using the same hook for all
 858          * skins, both the SkinTemplate based ones and the older ones, which directly
 859          * use this class to get their data.
 860          *
 861          * The output of this function gets processed in SkinTemplate::outputPage() for
 862          * the SkinTemplate based skins, all other skins should directly echo it.
 863          *
 864          * Returns an empty string by default, if not changed by any hook function.
 865          */
 866         protected function afterContentHook() {
 867                 $data = '';
 868
 869                 if( wfRunHooks( 'SkinAfterContent', array( &$data ) ) ){
 870                         // adding just some spaces shouldn't toggle the output
 871                         // of the whole <div/>, so we use trim() here
 872                         if( trim( $data ) != '' ){
 873                                 // Doing this here instead of in the skins to
 874                                 // ensure that the div has the same ID in all
 875                                 // skins
 876                                 $data = "<div id='mw-data-after-content'>\n" .
 877                                         "\t$data\n" .
 878                                         "</div>\n";
 879                         }
 880                 } else {
 881                         wfDebug( "Hook SkinAfterContent changed output processing.\n" );
 882                 }
 883
 884                 return $data;
 885         }
 886
 887         /**
 888          * Generate debug data HTML for displaying at the bottom of the main content
 889          * area.
 890          * @return String HTML containing debug data, if enabled (otherwise empty).
 891          */
 892         protected function generateDebugHTML() {
 893                 global $wgShowDebug, $wgOut;
 894                 if ( $wgShowDebug ) {
 895                         $listInternals = $this->formatDebugHTML( $wgOut->mDebugtext );
 896                         return "\n<hr />\n<strong>Debug data:</strong><ul style=\"font-family:monospace;\" id=\"mw-debug-html\">" .
 897                                 $listInternals . "</ul>\n";
 898                 }
 899                 return '';
 900         }
 901
 902         private function formatDebugHTML( $debugText ) {
 903                 $lines = explode( "\n", $debugText );
 904                 $curIdent = 0;
 905                 $ret = '<li>';
 906                 foreach( $lines as $line ) {
 907                         $m = array();
 908                         $display = ltrim( $line );
 909                         $ident = strlen( $line ) - strlen( $display );
 910                         $diff = $ident - $curIdent;
 911
 912                         if ( $display == '' )
 913                                 $display = "\xc2\xa0";
 914
 915                         if ( !$ident && $diff < 0 && substr( $display, 0, 9 ) != 'Entering ' && substr( $display, 0, 8 ) != 'Exiting ' ) {
 916                                 $ident = $curIdent;
 917                                 $diff = 0;
 918                                 $display = '<span style="background:yellow;">' . htmlspecialchars( $display ) . '</span>';
 919                         } else {
 920                                 $display = htmlspecialchars( $display );
 921                         }
 922
 923                         if ( $diff < 0 )
 924                                 $ret .= str_repeat( "</li></ul>\n", -$diff ) . "</li><li>\n";
 925                         elseif ( $diff == 0 )
 926                                 $ret .= "</li><li>\n";
 927                         else
 928                                 $ret .= str_repeat( "<ul><li>\n", $diff );
 929                         $ret .= $display . "\n";
 930
 931                         $curIdent = $ident;
 932                 }
 933                 $ret .= str_repeat( '</li></ul>', $curIdent ) . '</li>';
 934                 return $ret;
 935         }
 936
 937         /**
 938          * This gets called shortly before the </body> tag.
 939          * @return String HTML to be put before </body>
 940          */
 941         function afterContent() {
 942                 $printfooter = "<div class=\"printfooter\">\n" . $this->printFooter() . "</div>\n";
 943                 return $printfooter . $this->generateDebugHTML() . $this->doAfterContent();
 944         }
 945
 946         /**
 947          * This gets called shortly before the </body> tag.
 948          * @return String HTML-wrapped JS code to be put before </body>
 949          */
 950         function bottomScripts() {
 951                 $bottomScriptText = "\n" . Html::inlineScript( 'if (window.runOnloadHook) runOnloadHook();' ) . "\n";
 952                 wfRunHooks( 'SkinAfterBottomScripts', array( $this, &$bottomScriptText ) );
 953                 return $bottomScriptText;
 954         }
 955
 956         /** @return string Retrievied from HTML text */
 957         function printSource() {
 958                 $url = htmlspecialchars( $this->mTitle->getFullURL() );
 959                 return wfMsg( 'retrievedfrom', '<a href="'.$url.'">'.$url.'</a>' );
 960         }
 961
 962         function printFooter() {
 963                 return "<p>" .  $this->printSource() .
 964                         "</p>\n\n<p>" . $this->pageStats() . "</p>\n";
 965         }
 966
 967         /** overloaded by derived classes */
 968         function doAfterContent() { return '</div></div>'; }
 969
 970         function pageTitleLinks() {
 971                 global $wgOut, $wgUser, $wgRequest, $wgLang;
 972
 973                 $oldid = $wgRequest->getVal( 'oldid' );
 974                 $diff = $wgRequest->getVal( 'diff' );
 975                 $action = $wgRequest->getText( 'action' );
 976
 977                 $s[] = $this->printableLink();
 978                 $disclaimer = $this->disclaimerLink(); # may be empty
 979                 if( $disclaimer ) {
 980                         $s[] = $disclaimer;
 981                 }
 982                 $privacy = $this->privacyLink(); # may be empty too
 983                 if( $privacy ) {
 984                         $s[] = $privacy;
 985                 }
 986
 987                 if ( $wgOut->isArticleRelated() ) {
 988                         if ( $this->mTitle->getNamespace() == NS_FILE ) {
 989                                 $name = $this->mTitle->getDBkey();
 990                                 $image = wfFindFile( $this->mTitle );
 991                                 if( $image ) {
 992                                         $link = htmlspecialchars( $image->getURL() );
 993                                         $style = $this->getInternalLinkAttributes( $link, $name );
 994                                         $s[] = "<a href=\"{$link}\"{$style}>{$name}</a>";
 995                                 }
 996                         }
 997                 }
 998                 if ( 'history' == $action || isset( $diff ) || isset( $oldid ) ) {
 999                         $s[] .= $this->link(
1000                                         $this->mTitle,
1001                                         wfMsg( 'currentrev' ),
1002                                         array(),
1003                                         array(),
1004                                         array( 'known', 'noclasses' )
1005                         );
1006                 }
1007
1008                 if ( $wgUser->getNewtalk() ) {
1009                         # do not show "You have new messages" text when we are viewing our
1010                         # own talk page
1011                         if( !$this->mTitle->equals( $wgUser->getTalkPage() ) ) {
1012                                 $tl = $this->link(
1013                                         $wgUser->getTalkPage(),
1014                                         wfMsgHtml( 'newmessageslink' ),
1015                                         array(),
1016                                         array( 'redirect' => 'no' ),
1017                                         array( 'known', 'noclasses' )
1018                                 );
1019
1020                                 $dl = $this->link(
1021                                         $wgUser->getTalkPage(),
1022                                         wfMsgHtml( 'newmessagesdifflink' ),
1023                                         array(),
1024                                         array( 'diff' => 'cur' ),
1025                                         array( 'known', 'noclasses' )
1026                                 );
1027                                 $s[] = '<strong>'. wfMsg( 'youhavenewmessages', $tl, $dl ) . '</strong>';
1028                                 # disable caching
1029                                 $wgOut->setSquidMaxage( 0 );
1030                                 $wgOut->enableClientCache( false );
1031                         }
1032                 }
1033
1034                 $undelete = $this->getUndeleteLink();
1035                 if( !empty( $undelete ) ) {
1036                         $s[] = $undelete;
1037                 }
1038                 return $wgLang->pipeList( $s );
1039         }
1040
1041         function getUndeleteLink() {
1042                 global $wgUser, $wgContLang, $wgLang, $wgRequest;
1043
1044                 $action = $wgRequest->getVal( 'action', 'view' );
1045
1046                 if ( $wgUser->isAllowed( 'deletedhistory' ) &&
1047                         ( $this->mTitle->getArticleId() == 0 || $action == 'history' ) ) {
1048                         $n = $this->mTitle->isDeleted();
1049                         if ( $n ) {
1050                                 if ( $wgUser->isAllowed( 'undelete' ) ) {
1051                                         $msg = 'thisisdeleted';
1052                                 } else {
1053                                         $msg = 'viewdeleted';
1054                                 }
1055                                 return wfMsg(
1056                                         $msg,
1057                                         $this->link(
1058                                                 SpecialPage::getTitleFor( 'Undelete', $this->mTitle->getPrefixedDBkey() ),
1059                                                 wfMsgExt( 'restorelink', array( 'parsemag', 'escape' ), $wgLang->formatNum( $n ) ),
1060                                                 array(),
1061                                                 array(),
1062                                                 array( 'known', 'noclasses' )
1063                                         )
1064                                 );
1065                         }
1066                 }
1067                 return '';
1068         }
1069
1070         function printableLink() {
1071                 global $wgOut, $wgFeedClasses, $wgRequest, $wgLang;
1072
1073                 $s = array();
1074
1075                 if ( !$wgOut->isPrintable() ) {
1076                         $printurl = $wgRequest->escapeAppendQuery( 'printable=yes' );
1077                         $s[] = "<a href=\"$printurl\" rel=\"alternate\">" . wfMsg( 'printableversion' ) . '</a>';
1078                 }
1079
1080                 if( $wgOut->isSyndicated() ) {
1081                         foreach( $wgFeedClasses as $format => $class ) {
1082                                 $feedurl = $wgRequest->escapeAppendQuery( "feed=$format" );
1083                                 $s[] = "<a href=\"$feedurl\" rel=\"alternate\" type=\"application/{$format}+xml\""
1084                                                 . " class=\"feedlink\">" . wfMsgHtml( "feed-$format" ) . "</a>";
1085                         }
1086                 }
1087                 return $wgLang->pipeList( $s );
1088         }
1089
1090         function pageTitle() {
1091                 global $wgOut;
1092                 $s = '<h1 class="pagetitle">' . $wgOut->getPageTitle() . '</h1>';
1093                 return $s;
1094         }
1095
1096         function pageSubtitle() {
1097                 global $wgOut;
1098
1099                 $sub = $wgOut->getSubtitle();
1100                 if ( $sub == '' ) {
1101                         global $wgExtraSubtitle;
1102                         $sub = wfMsgExt( 'tagline', 'parsemag' ) . $wgExtraSubtitle;
1103                 }
1104                 $subpages = $this->subPageSubtitle();
1105                 $sub .= !empty( $subpages ) ? "</p><p class='subpages'>$subpages" : '';
1106                 $s = "<p class='subtitle'>{$sub}</p>\n";
1107                 return $s;
1108         }
1109
1110         function subPageSubtitle() {
1111                 $subpages = '';
1112                 if( !wfRunHooks( 'SkinSubPageSubtitle', array( &$subpages ) ) )
1113                         return $subpages;
1114
1115                 global $wgOut;
1116                 if( $wgOut->isArticle() && MWNamespace::hasSubpages( $this->mTitle->getNamespace() ) ) {
1117                         $ptext = $this->mTitle->getPrefixedText();
1118                         if( preg_match( '/\//', $ptext ) ) {
1119                                 $links = explode( '/', $ptext );
1120                                 array_pop( $links );
1121                                 $c = 0;
1122                                 $growinglink = '';
1123                                 $display = '';
1124                                 foreach( $links as $link ) {
1125                                         $growinglink .= $link;
1126                                         $display .= $link;
1127                                         $linkObj = Title::newFromText( $growinglink );
1128                                         if( is_object( $linkObj ) && $linkObj->exists() ){
1129                                                 $getlink = $this->link(
1130                                                         $linkObj,
1131                                                         htmlspecialchars( $display ),
1132                                                         array(),
1133                                                         array(),
1134                                                         array( 'known', 'noclasses' )
1135                                                 );
1136                                                 $c++;
1137                                                 if( $c > 1 ) {
1138                                                         $subpages .= wfMsgExt( 'pipe-separator', 'escapenoentities' );
1139                                                 } else  {
1140                                                         $subpages .= '&lt; ';
1141                                                 }
1142                                                 $subpages .= $getlink;
1143                                                 $display = '';
1144                                         } else {
1145                                                 $display .= '/';
1146                                         }
1147                                         $growinglink .= '/';
1148                                 }
1149                         }
1150                 }
1151                 return $subpages;
1152         }
1153
1154         /**
1155          * Returns true if the IP should be shown in the header
1156          */
1157         function showIPinHeader() {
1158                 global $wgShowIPinHeader;
1159                 return $wgShowIPinHeader && session_id() != '';
1160         }
1161
1162         function nameAndLogin() {
1163                 global $wgUser, $wgLang, $wgContLang;
1164
1165                 $logoutPage = $wgContLang->specialPage( 'Userlogout' );
1166
1167                 $ret = '';
1168                 if ( $wgUser->isAnon() ) {
1169                         if( $this->showIPinHeader() ) {
1170                                 $name = wfGetIP();
1171
1172                                 $talkLink = $this->link( $wgUser->getTalkPage(),
1173                                         $wgLang->getNsText( NS_TALK ) );
1174
1175                                 $ret .= "$name ($talkLink)";
1176                         } else {
1177                                 $ret .= wfMsg( 'notloggedin' );
1178                         }
1179
1180                         $returnTo = $this->mTitle->getPrefixedDBkey();
1181                         $query = array();
1182                         if ( $logoutPage != $returnTo ) {
1183                                 $query['returnto'] = $returnTo;
1184                         }
1185
1186                         $loginlink = $wgUser->isAllowed( 'createaccount' )
1187                                 ? 'nav-login-createaccount'
1188                                 : 'login';
1189                         $ret .= "\n<br />" . $this->link(
1190                                 SpecialPage::getTitleFor( 'Userlogin' ),
1191                                 wfMsg( $loginlink ), array(), $query
1192                         );
1193                 } else {
1194                         $returnTo = $this->mTitle->getPrefixedDBkey();
1195                         $talkLink = $this->link( $wgUser->getTalkPage(),
1196                                 $wgLang->getNsText( NS_TALK ) );
1197
1198                         $ret .= $this->link( $wgUser->getUserPage(),
1199                                 htmlspecialchars( $wgUser->getName() ) );
1200                         $ret .= " ($talkLink)<br />";
1201                         $ret .= $wgLang->pipeList( array(
1202                                 $this->link(
1203                                         SpecialPage::getTitleFor( 'Userlogout' ), wfMsg( 'logout' ),
1204                                         array(), array( 'returnto' => $returnTo )
1205                                 ),
1206                                 $this->specialLink( 'preferences' ),
1207                         ) );
1208                 }
1209                 $ret = $wgLang->pipeList( array(
1210                         $ret,
1211                         $this->link(
1212                                 Title::newFromText( wfMsgForContent( 'helppage' ) ),
1213                                 wfMsg( 'help' )
1214                         ),
1215                 ) );
1216
1217                 return $ret;
1218         }
1219
1220         function getSearchLink() {
1221                 $searchPage = SpecialPage::getTitleFor( 'Search' );
1222                 return $searchPage->getLocalURL();
1223         }
1224
1225         function escapeSearchLink() {
1226                 return htmlspecialchars( $this->getSearchLink() );
1227         }
1228
1229         function searchForm() {
1230                 global $wgRequest, $wgUseTwoButtonsSearchForm;
1231                 $search = $wgRequest->getText( 'search' );
1232
1233                 $s = '<form id="searchform'.$this->searchboxes.'" name="search" class="inline" method="post" action="'
1234                   . $this->escapeSearchLink() . "\">\n"
1235                   . '<input type="text" id="searchInput'.$this->searchboxes.'" name="search" size="19" value="'
1236                   . htmlspecialchars( substr( $search, 0, 256 ) ) . "\" />\n"
1237                   . '<input type="submit" name="go" value="' . wfMsg( 'searcharticle' ) . '" />';
1238
1239                 if( $wgUseTwoButtonsSearchForm )
1240                         $s .= '&nbsp;<input type="submit" name="fulltext" value="' . wfMsg( 'searchbutton' ) . "\" />\n";
1241                 else
1242                         $s .= ' <a href="' . $this->escapeSearchLink() . '" rel="search">' . wfMsg( 'powersearch-legend' ) . "</a>\n";
1243
1244                 $s .= '</form>';
1245
1246                 // Ensure unique id's for search boxes made after the first
1247                 $this->searchboxes = $this->searchboxes == '' ? 2 : $this->searchboxes + 1;
1248
1249                 return $s;
1250         }
1251
1252         function topLinks() {
1253                 global $wgOut;
1254
1255                 $s = array(
1256                         $this->mainPageLink(),
1257                         $this->specialLink( 'recentchanges' )
1258                 );
1259
1260                 if ( $wgOut->isArticleRelated() ) {
1261                         $s[] = $this->editThisPage();
1262                         $s[] = $this->historyLink();
1263                 }
1264                 # Many people don't like this dropdown box
1265                 #$s[] = $this->specialPagesList();
1266
1267                 if( $this->variantLinks() ) {
1268                         $s[] = $this->variantLinks();
1269                 }
1270
1271                 if( $this->extensionTabLinks() ) {
1272                         $s[] = $this->extensionTabLinks();
1273                 }
1274
1275                 // FIXME: Is using Language::pipeList impossible here? Do not quite understand the use of the newline
1276                 return implode( $s, wfMsgExt( 'pipe-separator', 'escapenoentities' ) . "\n" );
1277         }
1278
1279         /**
1280          * Compatibility for extensions adding functionality through tabs.
1281          * Eventually these old skins should be replaced with SkinTemplate-based
1282          * versions, sigh...
1283          * @return string
1284          */
1285         function extensionTabLinks() {
1286                 $tabs = array();
1287                 $out = '';
1288                 $s = array();
1289                 wfRunHooks( 'SkinTemplateTabs', array( $this, &$tabs ) );
1290                 foreach( $tabs as $tab ) {
1291                         $s[] = Xml::element( 'a',
1292                                 array( 'href' => $tab['href'] ),
1293                                 $tab['text'] );
1294                 }
1295
1296                 if( count( $s ) ) {
1297                         global $wgLang;
1298
1299                         $out = wfMsgExt( 'pipe-separator' , 'escapenoentities' );
1300                         $out .= $wgLang->pipeList( $s );
1301                 }
1302
1303                 return $out;
1304         }
1305
1306         /**
1307          * Language/charset variant links for classic-style skins
1308          * @return string
1309          */
1310         function variantLinks() {
1311                 $s = '';
1312                 /* show links to different language variants */
1313                 global $wgDisableLangConversion, $wgLang, $wgContLang;
1314                 $variants = $wgContLang->getVariants();
1315                 if( !$wgDisableLangConversion && sizeof( $variants ) > 1 ) {
1316                         foreach( $variants as $code ) {
1317                                 $varname = $wgContLang->getVariantname( $code );
1318                                 if( $varname == 'disable' )
1319                                         continue;
1320                                 $s = $wgLang->pipeList( array(
1321                                         $s,
1322                                         '<a href="' . $this->mTitle->escapeLocalUrl( 'variant=' . $code ) . '">' . htmlspecialchars( $varname ) . '</a>'
1323                                 ) );
1324                         }
1325                 }
1326                 return $s;
1327         }
1328
1329         function bottomLinks() {
1330                 global $wgOut, $wgUser, $wgUseTrackbacks;
1331                 $sep = wfMsgExt( 'pipe-separator', 'escapenoentities' ) . "\n";
1332
1333                 $s = '';
1334                 if ( $wgOut->isArticleRelated() ) {
1335                         $element[] = '<strong>' . $this->editThisPage() . '</strong>';
1336                         if ( $wgUser->isLoggedIn() ) {
1337                                 $element[] = $this->watchThisPage();
1338                         }
1339                         $element[] = $this->talkLink();
1340                         $element[] = $this->historyLink();
1341                         $element[] = $this->whatLinksHere();
1342                         $element[] = $this->watchPageLinksLink();
1343
1344                         if( $wgUseTrackbacks )
1345                                 $element[] = $this->trackbackLink();
1346
1347                         if ( $this->mTitle->getNamespace() == NS_USER
1348                             || $this->mTitle->getNamespace() == NS_USER_TALK ){
1349                                 $id = User::idFromName( $this->mTitle->getText() );
1350                                 $ip = User::isIP( $this->mTitle->getText() );
1351
1352                                 if( $id || $ip ) { # both anons and non-anons have contri list
1353                                         $element[] = $this->userContribsLink();
1354                                 }
1355                                 if( $this->showEmailUser( $id ) ) {
1356                                         $element[] = $this->emailUserLink();
1357                                 }
1358                         }
1359
1360                         $s = implode( $element, $sep );
1361
1362                         if ( $this->mTitle->getArticleId() ) {
1363                                 $s .= "\n<br />";
1364                                 if( $wgUser->isAllowed( 'delete' ) ) { $s .= $this->deleteThisPage(); }
1365                                 if( $wgUser->isAllowed( 'protect' ) ) { $s .= $sep . $this->protectThisPage(); }
1366                                 if( $wgUser->isAllowed( 'move' ) ) { $s .= $sep . $this->moveThisPage(); }
1367                         }
1368                         $s .= "<br />\n" . $this->otherLanguages();
1369                 }
1370
1371                 return $s;
1372         }
1373
1374         function pageStats() {
1375                 global $wgOut, $wgLang, $wgArticle, $wgRequest, $wgUser;
1376                 global $wgDisableCounters, $wgMaxCredits, $wgShowCreditsIfMax, $wgPageShowWatchingUsers;
1377
1378                 $oldid = $wgRequest->getVal( 'oldid' );
1379                 $diff = $wgRequest->getVal( 'diff' );
1380                 if ( ! $wgOut->isArticle() ) { return ''; }
1381                 if( !$wgArticle instanceOf Article ) { return ''; }
1382                 if ( isset( $oldid ) || isset( $diff ) ) { return ''; }
1383                 if ( 0 == $wgArticle->getID() ) { return ''; }
1384
1385                 $s = '';
1386                 if ( !$wgDisableCounters ) {
1387                         $count = $wgLang->formatNum( $wgArticle->getCount() );
1388                         if ( $count ) {
1389                                 $s = wfMsgExt( 'viewcount', array( 'parseinline' ), $count );
1390                         }
1391                 }
1392
1393                 if( $wgMaxCredits != 0 ){
1394                         $s .= ' ' . Credits::getCredits( $wgArticle, $wgMaxCredits, $wgShowCreditsIfMax );
1395                 } else {
1396                         $s .= $this->lastModified();
1397                 }
1398
1399                 if( $wgPageShowWatchingUsers && $wgUser->getOption( 'shownumberswatching' ) ) {
1400                         $dbr = wfGetDB( DB_SLAVE );
1401                         $res = $dbr->select( 'watchlist',
1402                                 array( 'COUNT(*) AS n' ),
1403                                 array( 'wl_title' => $dbr->strencode( $this->mTitle->getDBkey() ), 'wl_namespace' => $this->mTitle->getNamespace() ),
1404                                 __METHOD__
1405                         );
1406                         $x = $dbr->fetchObject( $res );
1407
1408                         $s .= ' ' . wfMsgExt( 'number_of_watching_users_pageview',
1409                                 array( 'parseinline' ), $wgLang->formatNum( $x->n )
1410                         );
1411                 }
1412
1413                 return $s . ' ' .  $this->getCopyright();
1414         }
1415
1416         function getCopyright( $type = 'detect' ) {
1417                 global $wgRightsPage, $wgRightsUrl, $wgRightsText, $wgRequest, $wgArticle;
1418
1419                 if ( $type == 'detect' ) {
1420                         $diff = $wgRequest->getVal( 'diff' );
1421                         $isCur = $wgArticle && $wgArticle->isCurrent();
1422                         if ( is_null( $diff ) && !$isCur && wfMsgForContent( 'history_copyright' ) !== '-' ) {
1423                                 $type = 'history';
1424                         } else {
1425                                 $type = 'normal';
1426                         }
1427                 }
1428
1429                 if ( $type == 'history' ) {
1430                         $msg = 'history_copyright';
1431                 } else {
1432                         $msg = 'copyright';
1433                 }
1434
1435                 $out = '';
1436                 if( $wgRightsPage ) {
1437                         $title = Title::newFromText( $wgRightsPage );
1438                         $link = $this->linkKnown( $title, $wgRightsText );
1439                 } elseif( $wgRightsUrl ) {
1440                         $link = $this->makeExternalLink( $wgRightsUrl, $wgRightsText );
1441                 } elseif( $wgRightsText ) {
1442                         $link = $wgRightsText;
1443                 } else {
1444                         # Give up now
1445                         return $out;
1446                 }
1447                 // Allow for site and per-namespace customization of copyright notice.
1448                 if( isset($wgArticle) )
1449                         wfRunHooks( 'SkinCopyrightFooter', array( $wgArticle->getTitle(), $type, &$msg, &$link ) );
1450
1451                 $out .= wfMsgForContent( $msg, $link );
1452                 return $out;
1453         }
1454
1455         function getCopyrightIcon() {
1456                 global $wgRightsUrl, $wgRightsText, $wgRightsIcon, $wgCopyrightIcon;
1457                 $out = '';
1458                 if ( isset( $wgCopyrightIcon ) && $wgCopyrightIcon ) {
1459                         $out = $wgCopyrightIcon;
1460                 } else if ( $wgRightsIcon ) {
1461                         $icon = htmlspecialchars( $wgRightsIcon );
1462                         if ( $wgRightsUrl ) {
1463                                 $url = htmlspecialchars( $wgRightsUrl );
1464                                 $out .= '<a href="'.$url.'">';
1465                         }
1466                         $text = htmlspecialchars( $wgRightsText );
1467                         $out .= "<img src=\"$icon\" alt=\"$text\" width=\"88\" height=\"31\" />";
1468                         if ( $wgRightsUrl ) {
1469                                 $out .= '</a>';
1470                         }
1471                 }
1472                 return $out;
1473         }
1474
1475         function getPoweredBy() {
1476                 global $wgStylePath;
1477                 $url = htmlspecialchars( "$wgStylePath/common/images/poweredby_mediawiki_88x31.png" );
1478                 $img = '<a href="http://www.mediawiki.org/"><img src="'.$url.'" height="31" width="88" alt="Powered by MediaWiki" /></a>';
1479                 return $img;
1480         }
1481
1482         function lastModified() {
1483                 global $wgLang, $wgArticle;
1484                 if( $this->mRevisionId && $this->mRevisionId != $wgArticle->getLatest()) {
1485                         $timestamp = Revision::getTimestampFromId( $wgArticle->getTitle(), $this->mRevisionId );
1486                 } else {
1487                         $timestamp = $wgArticle->getTimestamp();
1488                 }
1489                 if ( $timestamp ) {
1490                         $d = $wgLang->date( $timestamp, true );
1491                         $t = $wgLang->time( $timestamp, true );
1492                         $s = ' ' . wfMsg( 'lastmodifiedat', $d, $t );
1493                 } else {
1494                         $s = '';
1495                 }
1496                 if ( wfGetLB()->getLaggedSlaveMode() ) {
1497                         $s .= ' <strong>' . wfMsg( 'laggedslavemode' ) . '</strong>';
1498                 }
1499                 return $s;
1500         }
1501
1502         function logoText( $align = '' ) {
1503                 if ( $align != '' ) {
1504                         $a = " align='{$align}'";
1505                 } else {
1506                         $a = '';
1507                 }
1508
1509                 $mp = wfMsg( 'mainpage' );
1510                 $mptitle = Title::newMainPage();
1511                 $url = ( is_object( $mptitle ) ? $mptitle->escapeLocalURL() : '' );
1512
1513                 $logourl = $this->getLogo();
1514                 $s = "<a href='{$url}'><img{$a} src='{$logourl}' alt='[{$mp}]' /></a>";
1515                 return $s;
1516         }
1517
1518         /**
1519          * show a drop-down box of special pages
1520          */
1521         function specialPagesList() {
1522                 global $wgUser, $wgContLang, $wgServer, $wgRedirectScript;
1523                 $pages = array_merge( SpecialPage::getRegularPages(), SpecialPage::getRestrictedPages() );
1524                 foreach ( $pages as $name => $page ) {
1525                         $pages[$name] = $page->getDescription();
1526                 }
1527
1528                 $go = wfMsg( 'go' );
1529                 $sp = wfMsg( 'specialpages' );
1530                 $spp = $wgContLang->specialPage( 'Specialpages' );
1531
1532                 $s = '<form id="specialpages" method="get" ' .
1533                   'action="' . htmlspecialchars( "{$wgServer}{$wgRedirectScript}" ) . "\">\n";
1534                 $s .= "<select name=\"wpDropdown\">\n";
1535                 $s .= "<option value=\"{$spp}\">{$sp}</option>\n";
1536
1537
1538                 foreach ( $pages as $name => $desc ) {
1539                         $p = $wgContLang->specialPage( $name );
1540                         $s .= "<option value=\"{$p}\">{$desc}</option>\n";
1541                 }
1542                 $s .= "</select>\n";
1543                 $s .= "<input type='submit' value=\"{$go}\" name='redirect' />\n";
1544                 $s .= "</form>\n";
1545                 return $s;
1546         }
1547
1548         function mainPageLink() {
1549                 $s = $this->link(
1550                         Title::newMainPage(),
1551                         wfMsg( 'mainpage' ),
1552                         array(),
1553                         array(),
1554                         array( 'known', 'noclasses' )
1555                 );
1556                 return $s;
1557         }
1558
1559         private function footerLink ( $desc, $page ) {
1560                 // if the link description has been set to "-" in the default language,
1561                 if ( wfMsgForContent( $desc )  == '-') {
1562                         // then it is disabled, for all languages.
1563                         return '';
1564                 } else {
1565                         // Otherwise, we display the link for the user, described in their
1566                         // language (which may or may not be the same as the default language),
1567                         // but we make the link target be the one site-wide page.
1568                         $title = Title::newFromText( wfMsgForContent( $page ) );
1569                         return $this->linkKnown(
1570                                 $title,
1571                                 wfMsgExt( $desc, array( 'parsemag', 'escapenoentities' ) )
1572                         );
1573                 }
1574         }
1575
1576         function privacyLink() {
1577                 return $this->footerLink( 'privacy', 'privacypage' );
1578         }
1579
1580         function aboutLink() {
1581                 return $this->footerLink( 'aboutsite', 'aboutpage' );
1582         }
1583
1584         function disclaimerLink() {
1585                 return $this->footerLink( 'disclaimers', 'disclaimerpage' );
1586         }
1587
1588         function editThisPage() {
1589                 global $wgOut;
1590
1591                 if ( !$wgOut->isArticleRelated() ) {
1592                         $s = wfMsg( 'protectedpage' );
1593                 } else {
1594                         if( $this->mTitle->quickUserCan( 'edit' ) && $this->mTitle->exists() ) {
1595                                 $t = wfMsg( 'editthispage' );
1596                         } elseif( $this->mTitle->quickUserCan( 'create' ) && !$this->mTitle->exists() ) {
1597                                 $t = wfMsg( 'create-this-page' );
1598                         } else {
1599                                 $t = wfMsg( 'viewsource' );
1600                         }
1601
1602                         $s = $this->link(
1603                                 $this->mTitle,
1604                                 $t,
1605                                 array(),
1606                                 $this->editUrlOptions(),
1607                                 array( 'known', 'noclasses' )
1608                         );
1609                 }
1610                 return $s;
1611         }
1612
1613         /**
1614          * Return URL options for the 'edit page' link.
1615          * This may include an 'oldid' specifier, if the current page view is such.
1616          *
1617          * @return array
1618          * @private
1619          */
1620         function editUrlOptions() {
1621                 global $wgArticle;
1622
1623                 $options = array( 'action' => 'edit' );
1624
1625                 if( $this->mRevisionId && ! $wgArticle->isCurrent() ) {
1626                         $options['oldid'] = intval( $this->mRevisionId );
1627                 }
1628
1629                 return $options;
1630         }
1631
1632         function deleteThisPage() {
1633                 global $wgUser, $wgRequest;
1634
1635                 $diff = $wgRequest->getVal( 'diff' );
1636                 if ( $this->mTitle->getArticleId() && ( !$diff ) && $wgUser->isAllowed( 'delete' ) ) {
1637                         $t = wfMsg( 'deletethispage' );
1638
1639                         $s = $this->link(
1640                                 $this->mTitle,
1641                                 $t,
1642                                 array(),
1643                                 array( 'action' => 'delete' ),
1644                                 array( 'known', 'noclasses' )
1645                         );
1646                 } else {
1647                         $s = '';
1648                 }
1649                 return $s;
1650         }
1651
1652         function protectThisPage() {
1653                 global $wgUser, $wgRequest;
1654
1655                 $diff = $wgRequest->getVal( 'diff' );
1656                 if ( $this->mTitle->getArticleId() && ( ! $diff ) && $wgUser->isAllowed('protect') ) {
1657                         if ( $this->mTitle->isProtected() ) {
1658                                 $text = wfMsg( 'unprotectthispage' );
1659                                 $query = array( 'action' => 'unprotect' );
1660                         } else {
1661                                 $text = wfMsg( 'protectthispage' );
1662                                 $query = array( 'action' => 'protect' );
1663                         }
1664
1665                         $s = $this->link(
1666                                 $this->mTitle,
1667                                 $text,
1668                                 array(),
1669                                 $query,
1670                                 array( 'known', 'noclasses' )
1671                         );
1672                 } else {
1673                         $s = '';
1674                 }
1675                 return $s;
1676         }
1677
1678         function watchThisPage() {
1679                 global $wgOut;
1680                 ++$this->mWatchLinkNum;
1681
1682                 if ( $wgOut->isArticleRelated() ) {
1683                         if ( $this->mTitle->userIsWatching() ) {
1684                                 $text = wfMsg( 'unwatchthispage' );
1685                                 $query = array( 'action' => 'unwatch' );
1686                                 $id = 'mw-unwatch-link' . $this->mWatchLinkNum;
1687                         } else {
1688                                 $text = wfMsg( 'watchthispage' );
1689                                 $query = array( 'action' => 'watch' );
1690                                 $id = 'mw-watch-link' . $this->mWatchLinkNum;
1691                         }
1692
1693                         $s = $this->link(
1694                                 $this->mTitle,
1695                                 $text,
1696                                 array( 'id' => $id ),
1697                                 $query,
1698                                 array( 'known', 'noclasses' )
1699                         );
1700                 } else {
1701                         $s = wfMsg( 'notanarticle' );
1702                 }
1703                 return $s;
1704         }
1705
1706         function moveThisPage() {
1707                 if ( $this->mTitle->quickUserCan( 'move' ) ) {
1708                         return $this->link(
1709                                 SpecialPage::getTitleFor( 'Movepage' ),
1710                                 wfMsg( 'movethispage' ),
1711                                 array(),
1712                                 array( 'target' => $this->mTitle->getPrefixedDBkey() ),
1713                                 array( 'known', 'noclasses' )
1714                         );
1715                 } else {
1716                         // no message if page is protected - would be redundant
1717                         return '';
1718                 }
1719         }
1720
1721         function historyLink() {
1722                 return $this->link(
1723                         $this->mTitle,
1724                         wfMsgHtml( 'history' ),
1725                         array( 'rel' => 'archives' ),
1726                         array( 'action' => 'history' )
1727                 );
1728         }
1729
1730         function whatLinksHere() {
1731                 return $this->link(
1732                         SpecialPage::getTitleFor( 'Whatlinkshere', $this->mTitle->getPrefixedDBkey() ),
1733                         wfMsgHtml( 'whatlinkshere' ),
1734                         array(),
1735                         array(),
1736                         array( 'known', 'noclasses' )
1737                 );
1738         }
1739
1740         function userContribsLink() {
1741                 return $this->link(
1742                         SpecialPage::getTitleFor( 'Contributions', $this->mTitle->getDBkey() ),
1743                         wfMsgHtml( 'contributions' ),
1744                         array(),
1745                         array(),
1746                         array( 'known', 'noclasses' )
1747                 );
1748         }
1749
1750         function showEmailUser( $id ) {
1751                 global $wgUser;
1752                 $targetUser = User::newFromId( $id );
1753                 return  $wgUser->canSendEmail() && # the sending user must have a confirmed email address
1754                         $targetUser->canReceiveEmail(); # the target user must have a confirmed email address and allow emails from users
1755         }
1756
1757         function emailUserLink() {
1758                 return $this->link(
1759                         SpecialPage::getTitleFor( 'Emailuser', $this->mTitle->getDBkey() ),
1760                         wfMsg( 'emailuser' ),
1761                         array(),
1762                         array(),
1763                         array( 'known', 'noclasses' )
1764                 );
1765         }
1766
1767         function watchPageLinksLink() {
1768                 global $wgOut;
1769                 if ( ! $wgOut->isArticleRelated() ) {
1770                         return '(' . wfMsg( 'notanarticle' ) . ')';
1771                 } else {
1772                         return $this->link(
1773                                 SpecialPage::getTitleFor( 'Recentchangeslinked', $this->mTitle->getPrefixedDBkey() ),
1774                                 wfMsg( 'recentchangeslinked-toolbox' ),
1775                                 array(),
1776                                 array(),
1777                                 array( 'known', 'noclasses' )
1778                         );
1779                 }
1780         }
1781
1782         function trackbackLink() {
1783                 return '<a href="' . $this->mTitle->trackbackURL() . '">'
1784                         . wfMsg( 'trackbacklink' ) . '</a>';
1785         }
1786
1787         function otherLanguages() {
1788                 global $wgOut, $wgContLang, $wgHideInterlanguageLinks;
1789
1790                 if ( $wgHideInterlanguageLinks ) {
1791                         return '';
1792                 }
1793
1794                 $a = $wgOut->getLanguageLinks();
1795                 if ( 0 == count( $a ) ) {
1796                         return '';
1797                 }
1798
1799                 $s = wfMsg( 'otherlanguages' ) . wfMsg( 'colon-separator' );
1800                 $first = true;
1801                 if( $wgContLang->isRTL() ) $s .= '<span dir="LTR">';
1802                 foreach( $a as $l ) {
1803                         if ( !$first ) {
1804                                 $s .= wfMsgExt( 'pipe-separator', 'escapenoentities' );
1805                         }
1806                         $first = false;
1807
1808                         $nt = Title::newFromText( $l );
1809                         $url = $nt->escapeFullURL();
1810                         $text = $wgContLang->getLanguageName( $nt->getInterwiki() );
1811
1812                         if ( $text == '' ) { $text = $l; }
1813                         $style = $this->getExternalLinkAttributes();
1814                         $s .= "<a href=\"{$url}\"{$style}>{$text}</a>";
1815                 }
1816                 if( $wgContLang->isRTL() ) $s .= '</span>';
1817                 return $s;
1818         }
1819
1820         function talkLink() {
1821                 if ( NS_SPECIAL == $this->mTitle->getNamespace() ) {
1822                         # No discussion links for special pages
1823                         return '';
1824                 }
1825
1826                 $linkOptions = array();
1827
1828                 if( $this->mTitle->isTalkPage() ) {
1829                         $link = $this->mTitle->getSubjectPage();
1830                         switch( $link->getNamespace() ) {
1831                                 case NS_MAIN:
1832                                         $text = wfMsg( 'articlepage' );
1833                                         break;
1834                                 case NS_USER:
1835                                         $text = wfMsg( 'userpage' );
1836                                         break;
1837                                 case NS_PROJECT:
1838                                         $text = wfMsg( 'projectpage' );
1839                                         break;
1840                                 case NS_FILE:
1841                                         $text = wfMsg( 'imagepage' );
1842                                         # Make link known if image exists, even if the desc. page doesn't.
1843                                         if( wfFindFile( $link ) )
1844                                                 $linkOptions[] = 'known';
1845                                         break;
1846                                 case NS_MEDIAWIKI:
1847                                         $text = wfMsg( 'mediawikipage' );
1848                                         break;
1849                                 case NS_TEMPLATE:
1850                                         $text = wfMsg( 'templatepage' );
1851                                         break;
1852                                 case NS_HELP:
1853                                         $text = wfMsg( 'viewhelppage' );
1854                                         break;
1855                                 case NS_CATEGORY:
1856                                         $text = wfMsg( 'categorypage' );
1857                                         break;
1858                                 default:
1859                                         $text = wfMsg( 'articlepage' );
1860                         }
1861                 } else {
1862                         $link = $this->mTitle->getTalkPage();
1863                         $text = wfMsg( 'talkpage' );
1864                 }
1865
1866                 $s = $this->link( $link, $text, array(), array(), $linkOptions );
1867
1868                 return $s;
1869         }
1870
1871         function commentLink() {
1872                 global $wgOut;
1873
1874                 if ( $this->mTitle->getNamespace() == NS_SPECIAL ) {
1875                         return '';
1876                 }
1877
1878                 # __NEWSECTIONLINK___ changes behaviour here
1879                 # If it is present, the link points to this page, otherwise
1880                 # it points to the talk page
1881                 if( $this->mTitle->isTalkPage() ) {
1882                         $title = $this->mTitle;
1883                 } elseif( $wgOut->showNewSectionLink() ) {
1884                         $title = $this->mTitle;
1885                 } else {
1886                         $title = $this->mTitle->getTalkPage();
1887                 }
1888
1889                 return $this->link(
1890                         $title,
1891                         wfMsg( 'postcomment' ),
1892                         array(),
1893                         array(
1894                                 'action' => 'edit',
1895                                 'section' => 'new'
1896                         ),
1897                         array( 'known', 'noclasses' )
1898                 );
1899         }
1900
1901         /* these are used extensively in SkinTemplate, but also some other places */
1902         static function makeMainPageUrl( $urlaction = '' ) {
1903                 $title = Title::newMainPage();
1904                 self::checkTitle( $title, '' );
1905                 return $title->getLocalURL( $urlaction );
1906         }
1907
1908         static function makeSpecialUrl( $name, $urlaction = '' ) {
1909                 $title = SpecialPage::getTitleFor( $name );
1910                 return $title->getLocalURL( $urlaction );
1911         }
1912
1913         static function makeSpecialUrlSubpage( $name, $subpage, $urlaction = '' ) {
1914                 $title = SpecialPage::getSafeTitleFor( $name, $subpage );
1915                 return $title->getLocalURL( $urlaction );
1916         }
1917
1918         static function makeI18nUrl( $name, $urlaction = '' ) {
1919                 $title = Title::newFromText( wfMsgForContent( $name ) );
1920                 self::checkTitle( $title, $name );
1921                 return $title->getLocalURL( $urlaction );
1922         }
1923
1924         static function makeUrl( $name, $urlaction = '' ) {
1925                 $title = Title::newFromText( $name );
1926                 self::checkTitle( $title, $name );
1927                 return $title->getLocalURL( $urlaction );
1928         }
1929
1930         # If url string starts with http, consider as external URL, else
1931         # internal
1932         static function makeInternalOrExternalUrl( $name ) {
1933                 if ( preg_match( '/^(?:' . wfUrlProtocols() . ')/', $name ) ) {
1934                         return $name;
1935                 } else {
1936                         return self::makeUrl( $name );
1937                 }
1938         }
1939
1940         # this can be passed the NS number as defined in Language.php
1941         static function makeNSUrl( $name, $urlaction = '', $namespace = NS_MAIN ) {
1942                 $title = Title::makeTitleSafe( $namespace, $name );
1943                 self::checkTitle( $title, $name );
1944                 return $title->getLocalURL( $urlaction );
1945         }
1946
1947         /* these return an array with the 'href' and boolean 'exists' */
1948         static function makeUrlDetails( $name, $urlaction = '' ) {
1949                 $title = Title::newFromText( $name );
1950                 self::checkTitle( $title, $name );
1951                 return array(
1952                         'href' => $title->getLocalURL( $urlaction ),
1953                         'exists' => $title->getArticleID() != 0 ? true : false
1954                 );
1955         }
1956
1957         /**
1958          * Make URL details where the article exists (or at least it's convenient to think so)
1959          */
1960         static function makeKnownUrlDetails( $name, $urlaction = '' ) {
1961                 $title = Title::newFromText( $name );
1962                 self::checkTitle( $title, $name );
1963                 return array(
1964                         'href' => $title->getLocalURL( $urlaction ),
1965                         'exists' => true
1966                 );
1967         }
1968
1969         # make sure we have some title to operate on
1970         static function checkTitle( &$title, $name ) {
1971                 if( !is_object( $title ) ) {
1972                         $title = Title::newFromText( $name );
1973                         if( !is_object( $title ) ) {
1974                                 $title = Title::newFromText( '--error: link target missing--' );
1975                         }
1976                 }
1977         }
1978
1979         /**
1980          * Build an array that represents the sidebar(s), the navigation bar among them
1981          *
1982          * @return array
1983          */
1984         function buildSidebar() {
1985                 global $parserMemc, $wgEnableSidebarCache, $wgSidebarCacheExpiry;
1986                 global $wgLang;
1987                 wfProfileIn( __METHOD__ );
1988
1989                 $key = wfMemcKey( 'sidebar', $wgLang->getCode() );
1990
1991                 if ( $wgEnableSidebarCache ) {
1992                         $cachedsidebar = $parserMemc->get( $key );
1993                         if ( $cachedsidebar ) {
1994                                 wfProfileOut( __METHOD__ );
1995                                 return $cachedsidebar;
1996                         }
1997                 }
1998
1999                 $bar = array();
2000                 $this->addToSidebar( $bar, 'sidebar' );
2001
2002                 wfRunHooks( 'SkinBuildSidebar', array( $this, &$bar ) );
2003                 if ( $wgEnableSidebarCache ) $parserMemc->set( $key, $bar, $wgSidebarCacheExpiry );
2004                 wfProfileOut( __METHOD__ );
2005                 return $bar;
2006         }
2007         /**
2008          * Add content from a sidebar system message
2009          * Currently only used for MediaWiki:Sidebar (but may be used by Extensions)
2010          *
2011          * @param &$bar array
2012          * @param $message String
2013          */
2014         function addToSidebar( &$bar, $message ) {
2015                 $lines = explode( "\n", wfMsgForContent( $message ) );
2016                 $heading = '';
2017                 foreach( $lines as $line ) {
2018                         if( strpos( $line, '*' ) !== 0 )
2019                                 continue;
2020                         if( strpos( $line, '**') !== 0 ) {
2021                                 $heading = trim( $line, '* ' );
2022                                 if( !array_key_exists( $heading, $bar ) ) $bar[$heading] = array();
2023                         } else {
2024                                 if( strpos( $line, '|' ) !== false ) { // sanity check
2025                                         $line = array_map( 'trim', explode( '|', trim( $line, '* ' ), 2 ) );
2026                                         $link = wfMsgForContent( $line[0] );
2027                                         if( $link == '-' )
2028                                                 continue;
2029
2030                                         $text = wfMsgExt( $line[1], 'parsemag' );
2031                                         if( wfEmptyMsg( $line[1], $text ) )
2032                                                 $text = $line[1];
2033                                         if( wfEmptyMsg( $line[0], $link ) )
2034                                                 $link = $line[0];
2035
2036                                         if ( preg_match( '/^(?:' . wfUrlProtocols() . ')/', $link ) ) {
2037                                                 $href = $link;
2038                                         } else {
2039                                                 $title = Title::newFromText( $link );
2040                                                 if ( $title ) {
2041                                                         $title = $title->fixSpecialName();
2042                                                         $href = $title->getLocalURL();
2043                                                 } else {
2044                                                         $href = 'INVALID-TITLE';
2045                                                 }
2046                                         }
2047
2048                                         $bar[$heading][] = array(
2049                                                 'text' => $text,
2050                                                 'href' => $href,
2051                                                 'id' => 'n-' . strtr( $line[1], ' ', '-' ),
2052                                                 'active' => false
2053                                         );
2054                                 } else { continue; }
2055                         }
2056                 }
2057         }
2058
2059         /**
2060          * Should we include common/wikiprintable.css?  Skins that have their own
2061          * print stylesheet should override this and return false.  (This is an
2062          * ugly hack to get Monobook to play nicely with
2063          * OutputPage::headElement().)
2064          *
2065          * @return bool
2066          */
2067         public function commonPrintStylesheet() {
2068                 return true;
2069         }
2070 }