includes/Skin.php

   1 <?php
   2 /**
   3  * @defgroup Skins Skins
   4  */
   5
   6 if ( ! defined( 'MEDIAWIKI' ) )
   7         die( 1 );
   8
   9 /**
  10  * The main skin class that provide methods and properties for all other skins.
  11  * This base class is also the "Standard" skin.
  12  *
  13  * See docs/skin.txt for more information.
  14  *
  15  * @ingroup Skins
  16  */
  17 class Skin extends Linker {
  18         /**#@+
  19          * @private
  20          */
  21         var $mWatchLinkNum = 0; // Appended to end of watch link id's
  22         // How many search boxes have we made?  Avoid duplicate id's.
  23         protected $searchboxes = '';
  24         /**#@-*/
  25         protected $mRevisionId; // The revision ID we're looking at, null if not applicable.
  26         protected $skinname = 'standard';
  27         // @fixme Should be protected :-\
  28         var $mTitle = null;
  29
  30         /** Constructor, call parent constructor */
  31         function Skin() { parent::__construct(); }
  32
  33         /**
  34          * Fetch the set of available skins.
  35          * @return array of strings
  36          * @static
  37          */
  38         static function getSkinNames() {
  39                 global $wgValidSkinNames;
  40                 static $skinsInitialised = false;
  41                 if ( !$skinsInitialised ) {
  42                         # Get a list of available skins
  43                         # Build using the regular expression '^(.*).php$'
  44                         # Array keys are all lower case, array value keep the case used by filename
  45                         #
  46                         wfProfileIn( __METHOD__ . '-init' );
  47                         global $wgStyleDirectory;
  48                         $skinDir = dir( $wgStyleDirectory );
  49
  50                         # while code from www.php.net
  51                         while( false !== ( $file = $skinDir->read() ) ) {
  52                                 // Skip non-PHP files, hidden files, and '.dep' includes
  53                                 $matches = array();
  54                                 if( preg_match( '/^([^.]*)\.php$/', $file, $matches ) ) {
  55                                         $aSkin = $matches[1];
  56                                         $wgValidSkinNames[strtolower($aSkin)] = $aSkin;
  57                                 }
  58                         }
  59                         $skinDir->close();
  60                         $skinsInitialised = true;
  61                         wfProfileOut( __METHOD__ . '-init' );
  62                 }
  63                 return $wgValidSkinNames;
  64         }
  65
  66         /**
  67          * Fetch the list of usable skins in regards to $wgSkipSkins.
  68          * Useful for Special:Preferences and other places where you
  69          * only want to show skins users _can_ use.
  70          * @return array of strings
  71          */
  72         public static function getUsableSkins() {
  73                 global $wgSkipSkins;
  74                 $usableSkins = self::getSkinNames();
  75                 foreach ( $wgSkipSkins as $skip ) {
  76                         unset( $usableSkins[$skip] );
  77                 }
  78                 return $usableSkins;
  79         }
  80
  81         /**
  82          * Normalize a skin preference value to a form that can be loaded.
  83          * If a skin can't be found, it will fall back to the configured
  84          * default (or the old 'Classic' skin if that's broken).
  85          * @param string $key
  86          * @return string
  87          * @static
  88          */
  89         static function normalizeKey( $key ) {
  90                 global $wgDefaultSkin;
  91                 $skinNames = Skin::getSkinNames();
  92
  93                 if( $key == '' ) {
  94                         // Don't return the default immediately;
  95                         // in a misconfiguration we need to fall back.
  96                         $key = $wgDefaultSkin;
  97                 }
  98
  99                 if( isset( $skinNames[$key] ) ) {
 100                         return $key;
 101                 }
 102
 103                 // Older versions of the software used a numeric setting
 104                 // in the user preferences.
 105                 $fallback = array(
 106                         0 => $wgDefaultSkin,
 107                         1 => 'nostalgia',
 108                         2 => 'cologneblue' );
 109
 110                 if( isset( $fallback[$key] ) ){
 111                         $key = $fallback[$key];
 112                 }
 113
 114                 if( isset( $skinNames[$key] ) ) {
 115                         return $key;
 116                 } else {
 117                         return 'monobook';
 118                 }
 119         }
 120
 121         /**
 122          * Factory method for loading a skin of a given type
 123          * @param string $key 'monobook', 'standard', etc
 124          * @return Skin
 125          * @static
 126          */
 127         static function &newFromKey( $key ) {
 128                 global $wgStyleDirectory;
 129
 130                 $key = Skin::normalizeKey( $key );
 131
 132                 $skinNames = Skin::getSkinNames();
 133                 $skinName = $skinNames[$key];
 134                 $className = 'Skin'.ucfirst($key);
 135
 136                 # Grab the skin class and initialise it.
 137                 if ( !class_exists( $className ) ) {
 138                         // Preload base classes to work around APC/PHP5 bug
 139                         $deps = "{$wgStyleDirectory}/{$skinName}.deps.php";
 140                         if( file_exists( $deps ) ) include_once( $deps );
 141                         require_once( "{$wgStyleDirectory}/{$skinName}.php" );
 142
 143                         # Check if we got if not failback to default skin
 144                         if( !class_exists( $className ) ) {
 145                                 # DO NOT die if the class isn't found. This breaks maintenance
 146                                 # scripts and can cause a user account to be unrecoverable
 147                                 # except by SQL manipulation if a previously valid skin name
 148                                 # is no longer valid.
 149                                 wfDebug( "Skin class does not exist: $className\n" );
 150                                 $className = 'SkinMonobook';
 151                                 require_once( "{$wgStyleDirectory}/MonoBook.php" );
 152                         }
 153                 }
 154                 $skin = new $className;
 155                 return $skin;
 156         }
 157
 158         /** @return string path to the skin stylesheet */
 159         function getStylesheet() {
 160                 return 'common/wikistandard.css';
 161         }
 162
 163         /** @return string skin name */
 164         public function getSkinName() {
 165                 return $this->skinname;
 166         }
 167
 168         function qbSetting() {
 169                 global $wgOut, $wgUser;
 170
 171                 if ( $wgOut->isQuickbarSuppressed() ) { return 0; }
 172                 $q = $wgUser->getOption( 'quickbar', 0 );
 173                 return $q;
 174         }
 175
 176         function initPage( OutputPage $out ) {
 177                 global $wgFavicon, $wgAppleTouchIcon;
 178
 179                 wfProfileIn( __METHOD__ );
 180
 181                 # Add favicons and Apple touch icons, if they're not the defaults
 182                 #
 183                 # Generally the order of the favicon and apple-touch-icon links
 184                 # should not matter, but Konqueror (3.5.9 at least) incorrectly
 185                 # uses whichever one appears later in the HTML source.  Make sure
 186                 # apple-touch-icon is specified first to avoid this.
 187                 if( false !== $wgAppleTouchIcon && wfExpandUrl('/apple-touch-icon.png') != wfExpandUrl($wgAppleTouchIcon) ) {
 188                         $out->addLink( array( 'rel' => 'apple-touch-icon', 'href' => $wgAppleTouchIcon ) );
 189                 }
 190
 191                 if( false !== $wgFavicon && wfExpandUrl('/favicon.ico') != wfExpandUrl($wgFavicon) ) {
 192                         $out->addLink( array( 'rel' => 'shortcut icon', 'href' => $wgFavicon ) );
 193                 }
 194
 195                 # OpenSearch description link
 196                 $out->addLink( array(
 197                         'rel' => 'search',
 198                         'type' => 'application/opensearchdescription+xml',
 199                         'href' => wfScript( 'opensearch_desc' ),
 200                         'title' => wfMsgForContent( 'opensearch-desc' ),
 201                 ));
 202
 203                 $this->addMetadataLinks( $out );
 204
 205                 $this->mRevisionId = $out->mRevisionId;
 206
 207                 $this->preloadExistence();
 208
 209                 wfProfileOut( __METHOD__ );
 210         }
 211
 212         /**
 213          * Preload the existence of three commonly-requested pages in a single query
 214          */
 215         function preloadExistence() {
 216                 global $wgUser;
 217
 218                 // User/talk link
 219                 $titles = array( $wgUser->getUserPage(), $wgUser->getTalkPage() );
 220
 221                 // Other tab link
 222                 if ( $this->mTitle->getNamespace() == NS_SPECIAL ) {
 223                         // nothing
 224                 } elseif ( $this->mTitle->isTalkPage() ) {
 225                         $titles[] = $this->mTitle->getSubjectPage();
 226                 } else {
 227                         $titles[] = $this->mTitle->getTalkPage();
 228                 }
 229
 230                 $lb = new LinkBatch( $titles );
 231                 $lb->execute();
 232         }
 233
 234         function addMetadataLinks( OutputPage $out ) {
 235                 global $wgEnableDublinCoreRdf, $wgEnableCreativeCommonsRdf;
 236                 global $wgRightsPage, $wgRightsUrl;
 237
 238                 if( $out->isArticleRelated() ) {
 239                         # note: buggy CC software only reads first "meta" link
 240                         if( $wgEnableCreativeCommonsRdf ) {
 241                                 $out->addMetadataLink( array(
 242                                         'title' => 'Creative Commons',
 243                                         'type' => 'application/rdf+xml',
 244                                         'href' => $this->mTitle->getLocalURL( 'action=creativecommons' ) )
 245                                 );
 246                         }
 247                         if( $wgEnableDublinCoreRdf ) {
 248                                 $out->addMetadataLink( array(
 249                                         'title' => 'Dublin Core',
 250                                         'type' => 'application/rdf+xml',
 251                                         'href' => $this->mTitle->getLocalURL( 'action=dublincore' ) )
 252                                 );
 253                         }
 254                 }
 255                 $copyright = '';
 256                 if( $wgRightsPage ) {
 257                         $copy = Title::newFromText( $wgRightsPage );
 258                         if( $copy ) {
 259                                 $copyright = $copy->getLocalURL();
 260                         }
 261                 }
 262                 if( !$copyright && $wgRightsUrl ) {
 263                         $copyright = $wgRightsUrl;
 264                 }
 265                 if( $copyright ) {
 266                         $out->addLink( array(
 267                                 'rel' => 'copyright',
 268                                 'href' => $copyright )
 269                         );
 270                 }
 271         }
 272
 273         /**
 274          * Set some local variables
 275          */
 276         protected function setMembers(){
 277                 global $wgUser;
 278                 $this->mUser = $wgUser;
 279                 $this->userpage = $wgUser->getUserPage()->getPrefixedText();
 280                 $this->usercss = false;
 281         }
 282
 283         /**
 284          * Set the title
 285          * @param Title $t The title to use
 286          */
 287         public function setTitle( $t ) {
 288                 $this->mTitle = $t;
 289         }
 290
 291         /** Get the title */
 292         public function getTitle() {
 293                 return $this->mTitle;
 294         }
 295
 296         function outputPage( OutputPage $out ) {
 297                 global $wgDebugComments;
 298                 wfProfileIn( __METHOD__ );
 299
 300                 $this->setMembers();
 301                 $this->initPage( $out );
 302
 303                 // See self::afterContentHook() for documentation
 304                 $afterContent = $this->afterContentHook();
 305
 306                 $out->out( $out->headElement( $this ) );
 307
 308                 $out->out( "\n<body" );
 309                 $ops = $this->getBodyOptions();
 310                 foreach ( $ops as $name => $val ) {
 311                         $out->out( " $name='$val'" );
 312                 }
 313                 $out->out( ">\n" );
 314                 if ( $wgDebugComments ) {
 315                         $out->out( "<!-- Wiki debugging output:\n" .
 316                           $out->mDebugtext . "-->\n" );
 317                 }
 318
 319                 $out->out( $this->beforeContent() );
 320
 321                 $out->out( $out->mBodytext . "\n" );
 322
 323                 $out->out( $this->afterContent() );
 324
 325                 $out->out( $afterContent );
 326
 327                 $out->out( $this->bottomScripts() );
 328
 329                 $out->out( wfReportTime() );
 330
 331                 $out->out( "\n</body></html>" );
 332                 wfProfileOut( __METHOD__ );
 333         }
 334
 335         static function makeVariablesScript( $data ) {
 336                 global $wgJsMimeType;
 337
 338                 $r = array( "<script type=\"$wgJsMimeType\">/*<![CDATA[*/" );
 339                 foreach ( $data as $name => $value ) {
 340                         $encValue = Xml::encodeJsVar( $value );
 341                         $r[] = "var $name = $encValue;";
 342                 }
 343                 $r[] = "/*]]>*/</script>\n";
 344                 return implode( "\n\t\t", $r );
 345         }
 346
 347         /**
 348          * Make a <script> tag containing global variables
 349          * @param $skinName string Name of the skin
 350          * The odd calling convention is for backwards compatibility
 351          * @TODO @FIXME Make this not depend on $wgTitle!
 352          */
 353         static function makeGlobalVariablesScript( $skinName ) {
 354                 if ( is_array( $skinName ) ) {
 355                         # Weird back-compat stuff.
 356                         $skinName = $skinName['skinname'];
 357                 }
 358                 global $wgScript, $wgTitle, $wgStylePath, $wgUser;
 359                 global $wgArticlePath, $wgScriptPath, $wgServer, $wgContLang, $wgLang, $wgVariant;
 360                 global $wgCanonicalNamespaceNames, $wgOut, $wgArticle;
 361                 global $wgBreakFrames, $wgRequest, $wgVariantArticlePath, $wgActionPaths;
 362                 global $wgUseAjax, $wgAjaxWatch;
 363                 global $wgVersion, $wgEnableAPI, $wgEnableWriteAPI;
 364                 global $wgRestrictionTypes, $wgLivePreview;
 365                 global $wgMWSuggestTemplate, $wgDBname, $wgEnableMWSuggest;
 366
 367                 $ns = $wgTitle->getNamespace();
 368                 $nsname = isset( $wgCanonicalNamespaceNames[ $ns ] ) ? $wgCanonicalNamespaceNames[ $ns ] : $wgTitle->getNsText();
 369                 $separatorTransTable = $wgContLang->separatorTransformTable();
 370                 $separatorTransTable = $separatorTransTable ? $separatorTransTable : array();
 371                 $compactSeparatorTransTable = array(
 372                         implode( "\t", array_keys( $separatorTransTable ) ),
 373                         implode( "\t", $separatorTransTable ),
 374                 );
 375                 $digitTransTable = $wgContLang->digitTransformTable();
 376                 $digitTransTable = $digitTransTable ? $digitTransTable : array();
 377                 $compactDigitTransTable = array(
 378                         implode( "\t", array_keys( $digitTransTable ) ),
 379                         implode( "\t", $digitTransTable ),
 380                 );
 381
 382                 $vars = array(
 383                         'skin' => $skinName,
 384                         'stylepath' => $wgStylePath,
 385                         'wgArticlePath' => $wgArticlePath,
 386                         'wgScriptPath' => $wgScriptPath,
 387                         'wgScript' => $wgScript,
 388                         'wgVariantArticlePath' => $wgVariantArticlePath,
 389                         'wgActionPaths' => (object)$wgActionPaths,
 390                         'wgServer' => $wgServer,
 391                         'wgCanonicalNamespace' => $nsname,
 392                         'wgCanonicalSpecialPageName' => SpecialPage::resolveAlias( $wgTitle->getDBkey() ),
 393                         'wgNamespaceNumber' => $wgTitle->getNamespace(),
 394                         'wgPageName' => $wgTitle->getPrefixedDBKey(),
 395                         'wgTitle' => $wgTitle->getText(),
 396                         'wgAction' => $wgRequest->getText( 'action', 'view' ),
 397                         'wgArticleId' => $wgTitle->getArticleId(),
 398                         'wgIsArticle' => $wgOut->isArticle(),
 399                         'wgUserName' => $wgUser->isAnon() ? NULL : $wgUser->getName(),
 400                         'wgUserGroups' => $wgUser->isAnon() ? NULL : $wgUser->getEffectiveGroups(),
 401                         'wgUserVariant' => $wgVariant->getCode(),
 402                         'wgUserLanguage' => $wgLang->getCode(),
 403                         'wgContentLanguage' => $wgContLang->getCode(),
 404                         'wgBreakFrames' => $wgBreakFrames,
 405                         'wgCurRevisionId' => isset( $wgArticle ) ? $wgArticle->getLatest() : 0,
 406                         'wgVersion' => $wgVersion,
 407                         'wgEnableAPI' => $wgEnableAPI,
 408                         'wgEnableWriteAPI' => $wgEnableWriteAPI,
 409                         'wgSeparatorTransformTable' => $compactSeparatorTransTable,
 410                         'wgDigitTransformTable' => $compactDigitTransTable,
 411                 );
 412                 if ( !( $wgContLang->hasVariants() ) ) {
 413                         unset( $vars['wgUserVariant'] );
 414                 }
 415
 416                 //if on upload page output the extension list & js_upload
 417                 if( SpecialPage::resolveAlias( $wgTitle->getDBkey() ) ==  "Upload" ){
 418                         global $wgFileExtensions, $wgAjaxUploadInterface;
 419                         $vars['wgFileExtensions']        = $wgFileExtensions;
 420                         $vars['wgAjaxUploadInterface'] = $wgAjaxUploadInterface;
 421                 }
 422
 423                 if( $wgUseAjax && $wgEnableMWSuggest && !$wgUser->getOption( 'disablesuggest', false ) ){
 424                         $vars['wgMWSuggestTemplate'] = SearchEngine::getMWSuggestTemplate();
 425                         $vars['wgDBname'] = $wgDBname;
 426                         $vars['wgSearchNamespaces'] = SearchEngine::userNamespaces( $wgUser );
 427                         $vars['wgMWSuggestMessages'] = array( wfMsg( 'search-mwsuggest-enabled' ), wfMsg( 'search-mwsuggest-disabled' ) );
 428                 }
 429
 430                 foreach( $wgRestrictionTypes as $type )
 431                         $vars['wgRestriction' . ucfirst( $type )] = $wgTitle->getRestrictions( $type );
 432
 433                 if ( $wgLivePreview && $wgUser->getOption( 'uselivepreview' ) ) {
 434                         $vars['wgLivepreviewMessageLoading'] = wfMsg( 'livepreview-loading' );
 435                         $vars['wgLivepreviewMessageReady']   = wfMsg( 'livepreview-ready' );
 436                         $vars['wgLivepreviewMessageFailed']  = wfMsg( 'livepreview-failed' );
 437                         $vars['wgLivepreviewMessageError']   = wfMsg( 'livepreview-error' );
 438                 }
 439
 440                 if ( $wgOut->isArticleRelated() && $wgUseAjax && $wgAjaxWatch && $wgUser->isLoggedIn() ) {
 441                         $msgs = (object)array();
 442                         foreach ( array( 'watch', 'unwatch', 'watching', 'unwatching' ) as $msgName ) {
 443                                 $msgs->{$msgName . 'Msg'} = wfMsg( $msgName );
 444                         }
 445                         $vars['wgAjaxWatch'] = $msgs;
 446                 }
 447
 448                 // Allow extensions to add their custom variables to the global JS variables
 449                 wfRunHooks( 'MakeGlobalVariablesScript', array( &$vars ) );
 450
 451                 return self::makeVariablesScript( $vars );
 452         }
 453         /**
 454          * Return a random selection of the scripts we want in the header,
 455          * according to no particular rhyme or reason.  Various other scripts are
 456          * returned from a haphazard assortment of other functions scattered over
 457          * various files.  This entire hackish system needs to be burned to the
 458          * ground and rebuilt.
 459          *
 460          * @param $out OutputPage object, should be $wgOut
 461          *
 462          * @return string Raw HTML to output to <head>
 463          */
 464         function getHeadScripts( OutputPage $out ) {
 465                 global $wgStylePath, $wgUser, $wgJsMimeType, $wgStyleVersion, $wgOut;
 466                 global $wgUseSiteJs;
 467
 468                 $vars = self::makeGlobalVariablesScript( $this->getSkinName() );
 469
 470                 //moved wikibits to be called earlier on
 471                 //$out->addScriptFile( "{$wgStylePath}/common/wikibits.js" );
 472                 if( $wgUseSiteJs ) {
 473                         $jsCache = $wgUser->isLoggedIn() ? '&smaxage=0' : '';
 474                         $wgOut->addScriptFile(  self::makeUrl( '-',
 475                                         "action=raw$jsCache&gen=js&useskin=" .
 476                                         urlencode( $this->getSkinName() )
 477                                         )
 478                                 );
 479                 }
 480                 if( $out->isUserJsAllowed() && $wgUser->isLoggedIn() ) {
 481                         $userpage = $wgUser->getUserPage();
 482                         $userjs =  self::makeUrl(
 483                                 $userpage->getPrefixedText().'/'.$this->getSkinName().'.js',
 484                                 'action=raw&ctype='.$wgJsMimeType );
 485                         $wgOut->addScriptFile( $userjs );
 486                 }
 487                 return "\t" . $vars . "\t" . $out->mScripts;
 488         }
 489
 490         /**
 491          * To make it harder for someone to slip a user a fake
 492          * user-JavaScript or user-CSS preview, a random token
 493          * is associated with the login session. If it's not
 494          * passed back with the preview request, we won't render
 495          * the code.
 496          *
 497          * @param string $action
 498          * @return bool
 499          * @private
 500          */
 501         function userCanPreview( $action ) {
 502                 global $wgRequest, $wgUser;
 503
 504                 if( $action != 'submit' )
 505                         return false;
 506                 if( !$wgRequest->wasPosted() )
 507                         return false;
 508                 if( !$this->mTitle->userCanEditCssJsSubpage() )
 509                         return false;
 510                 return $wgUser->matchEditToken(
 511                         $wgRequest->getVal( 'wpEditToken' ) );
 512         }
 513
 514         /**
 515          * generated JavaScript action=raw&gen=js
 516          * This returns MediaWiki:Common.js and MediaWiki:[Skinname].js concate-
 517          * nated together.  For some bizarre reason, it does *not* return any
 518          * custom user JS from subpages.  Huh?
 519          *
 520          * There's absolutely no reason to have separate Monobook/Common JSes.
 521          * Any JS that cares can just check the skin variable generated at the
 522          * top.  For now Monobook.js will be maintained, but it should be consi-
 523          * dered deprecated.
 524          *
 525          * @param force_skin  lets you override the skin name
 526          *
 527          * @return string
 528          */
 529         public function generateUserJs( $skinName = null) {
 530                 global $wgStylePath;
 531
 532                 wfProfileIn( __METHOD__ );
 533                 if(!$skinName){
 534                         $skinName =     $this->getSkinName();
 535                 }
 536
 537                 $s = "/* generated javascript */\n";
 538                 $s .= "var skin = '" . Xml::escapeJsString($skinName ) . "';\n";
 539                 $s .= "var stylepath = '" . Xml::escapeJsString( $wgStylePath ) . "';";
 540                 $s .= "\n\n/* MediaWiki:Common.js */\n";
 541                 $commonJs = wfMsgForContent( 'common.js' );
 542                 if ( !wfEmptyMsg( 'common.js', $commonJs ) ) {
 543                         $s .= $commonJs;
 544                 }
 545
 546                 $s .= "\n\n/* MediaWiki:".ucfirst( $skinName ).".js */\n";
 547                 // avoid inclusion of non defined user JavaScript (with custom skins only)
 548                 // by checking for default message content
 549                 $msgKey = ucfirst( $skinName ).'.js';
 550                 $userJS = wfMsgForContent( $msgKey );
 551                 if ( !wfEmptyMsg( $msgKey, $userJS ) ) {
 552                         $s .= $userJS;
 553                 }
 554
 555                 wfProfileOut( __METHOD__ );
 556                 return $s;
 557         }
 558
 559         /**
 560          * Generate user stylesheet for action=raw&gen=css
 561          */
 562         public function generateUserStylesheet() {
 563                 wfProfileIn( __METHOD__ );
 564                 $s = "/* generated user stylesheet */\n" .
 565                         $this->reallyGenerateUserStylesheet();
 566                 wfProfileOut( __METHOD__ );
 567                 return $s;
 568         }
 569
 570         /**
 571          * Split for easier subclassing in SkinSimple, SkinStandard and SkinCologneBlue
 572          */
 573         protected function reallyGenerateUserStylesheet(){
 574                 global $wgUser;
 575                 $s = '';
 576                 if( ( $undopt = $wgUser->getOption( 'underline' ) ) < 2 ) {
 577                         $underline = $undopt ? 'underline' : 'none';
 578                         $s .= "a { text-decoration: $underline; }\n";
 579                 }
 580                 if( $wgUser->getOption( 'highlightbroken' ) ) {
 581                         $s .= "a.new, #quickbar a.new { color: #CC2200; }\n";
 582                 } else {
 583                         $s .= <<<END
 584 a.new, #quickbar a.new,
 585 a.stub, #quickbar a.stub {
 586         color: inherit;
 587 }
 588 a.new:after, #quickbar a.new:after {
 589         content: "?";
 590         color: #CC2200;
 591 }
 592 a.stub:after, #quickbar a.stub:after {
 593         content: "!";
 594         color: #772233;
 595 }
 596 END;
 597                 }
 598                 if( $wgUser->getOption( 'justify' ) ) {
 599                         $s .= "#article, #bodyContent, #mw_content { text-align: justify; }\n";
 600                 }
 601                 if( !$wgUser->getOption( 'showtoc' ) ) {
 602                         $s .= "#toc { display: none; }\n";
 603                 }
 604                 if( !$wgUser->getOption( 'editsection' ) ) {
 605                         $s .= ".editsection { display: none; }\n";
 606                 }
 607                 return $s;
 608         }
 609
 610         /**
 611          * @private
 612          */
 613         function setupUserCss( OutputPage $out ) {
 614                 global $wgRequest, $wgContLang, $wgUser;
 615                 global $wgAllowUserCss, $wgUseSiteCss, $wgSquidMaxage, $wgStylePath;
 616
 617                 wfProfileIn( __METHOD__ );
 618
 619                 $this->setupSkinUserCss( $out );
 620
 621                 $siteargs = array(
 622                         'action' => 'raw',
 623                         'maxage' => $wgSquidMaxage,
 624                 );
 625
 626                 // Add any extension CSS
 627                 foreach( $out->getExtStyle() as $tag ) {
 628                         $out->addStyle( $tag['href'] );
 629                 }
 630
 631                 // If we use the site's dynamic CSS, throw that in, too
 632                 // Per-site custom styles
 633                 if( $wgUseSiteCss ) {
 634                         global $wgHandheldStyle;
 635                         $query = wfArrayToCGI( array(
 636                                 'usemsgcache' => 'yes',
 637                                 'ctype' => 'text/css',
 638                                 'smaxage' => $wgSquidMaxage
 639                         ) + $siteargs );
 640                         # Site settings must override extension css! (bug 15025)
 641                         $out->addStyle( self::makeNSUrl( 'Common.css', $query, NS_MEDIAWIKI ) );
 642                         $out->addStyle( self::makeNSUrl( 'Print.css', $query, NS_MEDIAWIKI ), 'print' );
 643                         if( $wgHandheldStyle ) {
 644                                 $out->addStyle( self::makeNSUrl( 'Handheld.css', $query, NS_MEDIAWIKI ), 'handheld' );
 645                         }
 646                         $out->addStyle( self::makeNSUrl( $this->getSkinName() . '.css', $query, NS_MEDIAWIKI ) );
 647                 }
 648
 649                 if( $wgUser->isLoggedIn() ) {
 650                         // Ensure that logged-in users' generated CSS isn't clobbered
 651                         // by anons' publicly cacheable generated CSS.
 652                         $siteargs['smaxage'] = '0';
 653                         $siteargs['ts'] = $wgUser->mTouched;
 654                 }
 655                 // Per-user styles based on preferences
 656                 $siteargs['gen'] = 'css';
 657                 if( ( $us = $wgRequest->getVal( 'useskin', '' ) ) !== '' ) {
 658                         $siteargs['useskin'] = $us;
 659                 }
 660                 $out->addStyle( self::makeUrl( '-', wfArrayToCGI( $siteargs ) ) );
 661
 662                 // Per-user custom style pages
 663                 if( $wgAllowUserCss && $wgUser->isLoggedIn() ) {
 664                         $action = $wgRequest->getVal( 'action' );
 665                         # If we're previewing the CSS page, use it
 666                         if( $this->mTitle->isCssSubpage() && $this->userCanPreview( $action ) ) {
 667                                 $previewCss = $wgRequest->getText( 'wpTextbox1' );
 668                                 // @FIXME: properly escape the cdata!
 669                                 $this->usercss = "/*<![CDATA[*/\n" . $previewCss . "/*]]>*/";
 670                         } else {
 671                                 $out->addStyle( self::makeUrl( $this->userpage . '/' . $this->getSkinName() .'.css',
 672                                         'action=raw&ctype=text/css' ) );
 673                         }
 674                 }
 675
 676                 wfProfileOut( __METHOD__ );
 677         }
 678
 679         /**
 680          * Add skin specific stylesheets
 681          * @param $out OutputPage
 682          */
 683         function setupSkinUserCss( OutputPage $out ) {
 684                 $out->addStyle( 'common/shared.css' );
 685                 $out->addStyle( 'common/oldshared.css' );
 686                 $out->addStyle( $this->getStylesheet() );
 687                 $out->addStyle( 'common/common_rtl.css', '', '', 'rtl' );
 688         }
 689
 690         function getBodyOptions() {
 691                 global $wgUser, $wgOut, $wgRequest, $wgContLang;
 692
 693                 extract( $wgRequest->getValues( 'oldid', 'redirect', 'diff' ) );
 694
 695                 if ( 0 != $this->mTitle->getNamespace() ) {
 696                         $a = array( 'bgcolor' => '#ffffec' );
 697                 }
 698                 else $a = array( 'bgcolor' => '#FFFFFF' );
 699                 if( $wgOut->isArticle() && $wgUser->getOption( 'editondblclick' ) &&
 700                   $this->mTitle->quickUserCan( 'edit' ) ) {
 701                         $s = $this->mTitle->getFullURL( $this->editUrlOptions() );
 702                         $s = 'document.location = "' .Xml::escapeJsString( $s ) .'";';
 703                         $a += array( 'ondblclick' => $s );
 704                 }
 705                 $a['onload'] = $wgOut->getOnloadHandler();
 706                 $a['class'] =
 707                         'mediawiki' .
 708                         ' '.( $wgContLang->isRTL() ? 'rtl' : 'ltr' ).
 709                         ' '.$this->getPageClasses( $this->mTitle ) .
 710                         ' skin-'. Sanitizer::escapeClass( $this->getSkinName() );
 711                 return $a;
 712         }
 713
 714         function getPageClasses( $title ) {
 715                 $numeric = 'ns-'.$title->getNamespace();
 716                 if( $title->getNamespace() == NS_SPECIAL ) {
 717                         $type = 'ns-special';
 718                 } elseif( $title->isTalkPage() ) {
 719                         $type = 'ns-talk';
 720                 } else {
 721                         $type = 'ns-subject';
 722                 }
 723                 $name = Sanitizer::escapeClass( 'page-'.$title->getPrefixedText() );
 724                 return "$numeric $type $name";
 725         }
 726
 727         /**
 728          * URL to the logo
 729          */
 730         function getLogo() {
 731                 global $wgLogo;
 732                 return $wgLogo;
 733         }
 734
 735         /**
 736          * This will be called immediately after the <body> tag.  Split into
 737          * two functions to make it easier to subclass.
 738          */
 739         function beforeContent() {
 740                 return $this->doBeforeContent();
 741         }
 742
 743         function doBeforeContent() {
 744                 global $wgContLang;
 745                 wfProfileIn( __METHOD__ );
 746
 747                 $s = '';
 748                 $qb = $this->qbSetting();
 749
 750                 if( $langlinks = $this->otherLanguages() ) {
 751                         $rows = 2;
 752                         $borderhack = '';
 753                 } else {
 754                         $rows = 1;
 755                         $langlinks = false;
 756                         $borderhack = 'class="top"';
 757                 }
 758
 759                 $s .= "\n<div id='content'>\n<div id='topbar'>\n" .
 760                   "<table border='0' cellspacing='0' width='98%'>\n<tr>\n";
 761
 762                 $shove = ( $qb != 0 );
 763                 $left = ( $qb == 1 || $qb == 3 );
 764                 if( $wgContLang->isRTL() ) $left = !$left;
 765
 766                 if( !$shove ) {
 767                         $s .= "<td class='top' align='left' valign='top' rowspan='{$rows}'>\n" .
 768                           $this->logoText() . '</td>';
 769                 } elseif( $left ) {
 770                         $s .= $this->getQuickbarCompensator( $rows );
 771                 }
 772                 $l = $wgContLang->isRTL() ? 'right' : 'left';
 773                 $s .= "<td {$borderhack} align='$l' valign='top'>\n";
 774
 775                 $s .= $this->topLinks();
 776                 $s .= "<p class='subtitle'>" . $this->pageTitleLinks() . "</p>\n";
 777
 778                 $r = $wgContLang->isRTL() ? 'left' : 'right';
 779                 $s .= "</td>\n<td {$borderhack} valign='top' align='$r' nowrap='nowrap'>";
 780                 $s .= $this->nameAndLogin();
 781                 $s .= "\n<br />" . $this->searchForm() . "</td>";
 782
 783                 if ( $langlinks ) {
 784                         $s .= "</tr>\n<tr>\n<td class='top' colspan=\"2\">$langlinks</td>\n";
 785                 }
 786
 787                 if ( $shove && !$left ) { # Right
 788                         $s .= $this->getQuickbarCompensator( $rows );
 789                 }
 790                 $s .= "</tr>\n</table>\n</div>\n";
 791                 $s .= "\n<div id='article'>\n";
 792
 793                 $notice = wfGetSiteNotice();
 794                 if( $notice ) {
 795                         $s .= "\n<div id='siteNotice'>$notice</div>\n";
 796                 }
 797                 $s .= $this->pageTitle();
 798                 $s .= $this->pageSubtitle();
 799                 $s .= $this->getCategories();
 800                 wfProfileOut( __METHOD__ );
 801                 return $s;
 802         }
 803
 804
 805         function getCategoryLinks() {
 806                 global $wgOut, $wgUseCategoryBrowser;
 807                 global $wgContLang, $wgUser;
 808
 809                 if( count( $wgOut->mCategoryLinks ) == 0 ) return '';
 810
 811                 # Separator
 812                 $sep = wfMsgExt( 'catseparator', array( 'parsemag', 'escapenoentities' ) );
 813
 814                 // Use Unicode bidi embedding override characters,
 815                 // to make sure links don't smash each other up in ugly ways.
 816                 $dir = $wgContLang->isRTL() ? 'rtl' : 'ltr';
 817                 $embed = "<span dir='$dir'>";
 818                 $pop = '</span>';
 819
 820                 $allCats = $wgOut->getCategoryLinks();
 821                 $s = '';
 822                 $colon = wfMsgExt( 'colon-separator', 'escapenoentities' );
 823                 if ( !empty( $allCats['normal'] ) ) {
 824                         $t = $embed . implode( "{$pop} {$sep} {$embed}" , $allCats['normal'] ) . $pop;
 825
 826                         $msg = wfMsgExt( 'pagecategories', array( 'parsemag', 'escapenoentities' ), count( $allCats['normal'] ) );
 827                         $s .= '<div id="mw-normal-catlinks">' .
 828                                 $this->link( Title::newFromText( wfMsgForContent( 'pagecategorieslink' ) ), $msg )
 829                                 . $colon . $t . '</div>';
 830                 }
 831
 832                 # Hidden categories
 833                 if ( isset( $allCats['hidden'] ) ) {
 834                         if ( $wgUser->getBoolOption( 'showhiddencats' ) ) {
 835                                 $class ='mw-hidden-cats-user-shown';
 836                         } elseif ( $this->mTitle->getNamespace() == NS_CATEGORY ) {
 837                                 $class = 'mw-hidden-cats-ns-shown';
 838                         } else {
 839                                 $class = 'mw-hidden-cats-hidden';
 840                         }
 841                         $s .= "<div id=\"mw-hidden-catlinks\" class=\"$class\">" .
 842                                 wfMsgExt( 'hidden-categories', array( 'parsemag', 'escapenoentities' ), count( $allCats['hidden'] ) ) .
 843                                 $colon . $embed . implode( "$pop $sep $embed", $allCats['hidden'] ) . $pop .
 844                                 "</div>";
 845                 }
 846
 847                 # optional 'dmoz-like' category browser. Will be shown under the list
 848                 # of categories an article belong to
 849                 if( $wgUseCategoryBrowser ){
 850                         $s .= '<br /><hr />';
 851
 852                         # get a big array of the parents tree
 853                         $parenttree = $this->mTitle->getParentCategoryTree();
 854                         # Skin object passed by reference cause it can not be
 855                         # accessed under the method subfunction drawCategoryBrowser
 856                         $tempout = explode( "\n", Skin::drawCategoryBrowser( $parenttree, $this ) );
 857                         # Clean out bogus first entry and sort them
 858                         unset( $tempout[0] );
 859                         asort( $tempout );
 860                         # Output one per line
 861                         $s .= implode( "<br />\n", $tempout );
 862                 }
 863
 864                 return $s;
 865         }
 866
 867         /**
 868          * Render the array as a serie of links.
 869          * @param $tree Array: categories tree returned by Title::getParentCategoryTree
 870          * @param &skin Object: skin passed by reference
 871          * @return String separated by &gt;, terminate with "\n"
 872          */
 873         function drawCategoryBrowser( $tree, &$skin ){
 874                 $return = '';
 875                 foreach( $tree as $element => $parent ) {
 876                         if( empty( $parent ) ) {
 877                                 # element start a new list
 878                                 $return .= "\n";
 879                         } else {
 880                                 # grab the others elements
 881                                 $return .= Skin::drawCategoryBrowser( $parent, $skin ) . ' &gt; ';
 882                         }
 883                         # add our current element to the list
 884                         $eltitle = Title::newFromText( $element );
 885                         $return .=  $skin->link( $eltitle, $eltitle->getText() );
 886                 }
 887                 return $return;
 888         }
 889
 890         function getCategories() {
 891                 $catlinks=$this->getCategoryLinks();
 892
 893                 $classes = 'catlinks';
 894
 895                 if( strpos( $catlinks, '<div id="mw-normal-catlinks">' ) === false &&
 896                         strpos( $catlinks, '<div id="mw-hidden-catlinks" class="mw-hidden-cats-hidden">' ) !== false ) {
 897                         $classes .= ' catlinks-allhidden';
 898                 }
 899
 900                 if( !empty( $catlinks ) ){
 901                         return "<div id='catlinks' class='$classes'>{$catlinks}</div>";
 902                 }
 903         }
 904
 905         function getQuickbarCompensator( $rows = 1 ) {
 906                 return "<td width='152' rowspan='{$rows}'>&nbsp;</td>";
 907         }
 908
 909         /**
 910          * This runs a hook to allow extensions placing their stuff after content
 911          * and article metadata (e.g. categories).
 912          * Note: This function has nothing to do with afterContent().
 913          *
 914          * This hook is placed here in order to allow using the same hook for all
 915          * skins, both the SkinTemplate based ones and the older ones, which directly
 916          * use this class to get their data.
 917          *
 918          * The output of this function gets processed in SkinTemplate::outputPage() for
 919          * the SkinTemplate based skins, all other skins should directly echo it.
 920          *
 921          * Returns an empty string by default, if not changed by any hook function.
 922          */
 923         protected function afterContentHook() {
 924                 $data = '';
 925
 926                 if( wfRunHooks( 'SkinAfterContent', array( &$data ) ) ){
 927                         // adding just some spaces shouldn't toggle the output
 928                         // of the whole <div/>, so we use trim() here
 929                         if( trim( $data ) != '' ){
 930                                 // Doing this here instead of in the skins to
 931                                 // ensure that the div has the same ID in all
 932                                 // skins
 933                                 $data = "<div id='mw-data-after-content'>\n" .
 934                                         "\t$data\n" .
 935                                         "</div>\n";
 936                         }
 937                 } else {
 938                         wfDebug( "Hook SkinAfterContent changed output processing.\n" );
 939                 }
 940
 941                 return $data;
 942         }
 943
 944         /**
 945          * Generate debug data HTML for displaying at the bottom of the main content
 946          * area.
 947          * @return String HTML containing debug data, if enabled (otherwise empty).
 948          */
 949         protected function generateDebugHTML() {
 950                 global $wgShowDebug, $wgOut;
 951                 if ( $wgShowDebug ) {
 952                         $listInternals = str_replace( "\n", "</li>\n<li>", htmlspecialchars( $wgOut->mDebugtext ) );
 953                         return "\n<hr>\n<strong>Debug data:</strong><ul style=\"font-family:monospace;\"><li>" .
 954                                 $listInternals . "</li></ul>\n";
 955                 }
 956                 return '';
 957         }
 958
 959         /**
 960          * This gets called shortly before the </body> tag.
 961          * @return String HTML to be put before </body>
 962          */
 963         function afterContent() {
 964                 $printfooter = "<div class=\"printfooter\">\n" . $this->printFooter() . "</div>\n";
 965                 return $printfooter . $this->generateDebugHTML() . $this->doAfterContent();
 966         }
 967
 968         /**
 969          * This gets called shortly before the </body> tag.
 970          * @return String HTML-wrapped JS code to be put before </body>
 971          */
 972         function bottomScripts() {
 973                 global $wgJsMimeType;
 974                 $bottomScriptText = "\n\t\t<script type=\"$wgJsMimeType\">if (window.runOnloadHook) runOnloadHook();</script>\n";
 975                 wfRunHooks( 'SkinAfterBottomScripts', array( $this, &$bottomScriptText ) );
 976                 return $bottomScriptText;
 977         }
 978
 979         /** @return string Retrievied from HTML text */
 980         function printSource() {
 981                 $url = htmlspecialchars( $this->mTitle->getFullURL() );
 982                 return wfMsg( 'retrievedfrom', '<a href="'.$url.'">'.$url.'</a>' );
 983         }
 984
 985         function printFooter() {
 986                 return "<p>" .  $this->printSource() .
 987                         "</p>\n\n<p>" . $this->pageStats() . "</p>\n";
 988         }
 989
 990         /** overloaded by derived classes */
 991         function doAfterContent() { return '</div></div>'; }
 992
 993         function pageTitleLinks() {
 994                 global $wgOut, $wgUser, $wgRequest, $wgLang;
 995
 996                 $oldid = $wgRequest->getVal( 'oldid' );
 997                 $diff = $wgRequest->getVal( 'diff' );
 998                 $action = $wgRequest->getText( 'action' );
 999
1000                 $s[] = $this->printableLink();
1001                 $disclaimer = $this->disclaimerLink(); # may be empty
1002                 if( $disclaimer ) {
1003                         $s[] = $disclaimer;
1004                 }
1005                 $privacy = $this->privacyLink(); # may be empty too
1006                 if( $privacy ) {
1007                         $s[] = $privacy;
1008                 }
1009
1010                 if ( $wgOut->isArticleRelated() ) {
1011                         if ( $this->mTitle->getNamespace() == NS_FILE ) {
1012                                 $name = $this->mTitle->getDBkey();
1013                                 $image = wfFindFile( $this->mTitle );
1014                                 if( $image ) {
1015                                         $link = htmlspecialchars( $image->getURL() );
1016                                         $style = $this->getInternalLinkAttributes( $link, $name );
1017                                         $s[] = "<a href=\"{$link}\"{$style}>{$name}</a>";
1018                                 }
1019                         }
1020                 }
1021                 if ( 'history' == $action || isset( $diff ) || isset( $oldid ) ) {
1022                         $s[] .= $this->link(
1023                                         $this->mTitle,
1024                                         wfMsg( 'currentrev' ),
1025                                         array(),
1026                                         array(),
1027                                         array( 'known', 'noclasses' )
1028                         );
1029                 }
1030
1031                 if ( $wgUser->getNewtalk() ) {
1032                         # do not show "You have new messages" text when we are viewing our
1033                         # own talk page
1034                         if( !$this->mTitle->equals( $wgUser->getTalkPage() ) ) {
1035                                 $tl = $this->link(
1036                                         $wgUser->getTalkPage(),
1037                                         wfMsgHtml( 'newmessageslink' ),
1038                                         array(),
1039                                         array( 'redirect' => 'no' ),
1040                                         array( 'known', 'noclasses' )
1041                                 );
1042
1043                                 $dl = $this->link(
1044                                         $wgUser->getTalkPage(),
1045                                         wfMsgHtml( 'newmessagesdifflink' ),
1046                                         array(),
1047                                         array( 'diff' => 'cur' ),
1048                                         array( 'known', 'noclasses' )
1049                                 );
1050                                 $s[] = '<strong>'. wfMsg( 'youhavenewmessages', $tl, $dl ) . '</strong>';
1051                                 # disable caching
1052                                 $wgOut->setSquidMaxage( 0 );
1053                                 $wgOut->enableClientCache( false );
1054                         }
1055                 }
1056
1057                 $undelete = $this->getUndeleteLink();
1058                 if( !empty( $undelete ) ) {
1059                         $s[] = $undelete;
1060                 }
1061                 return $wgLang->pipeList( $s );
1062         }
1063
1064         function getUndeleteLink() {
1065                 global $wgUser, $wgContLang, $wgLang, $wgRequest;
1066
1067                 $action = $wgRequest->getVal( 'action', 'view' );
1068
1069                 if ( $wgUser->isAllowed( 'deletedhistory' ) &&
1070                         ( $this->mTitle->getArticleId() == 0 || $action == 'history' ) ) {
1071                         $n = $this->mTitle->isDeleted();
1072                         if ( $n ) {
1073                                 if ( $wgUser->isAllowed( 'undelete' ) ) {
1074                                         $msg = 'thisisdeleted';
1075                                 } else {
1076                                         $msg = 'viewdeleted';
1077                                 }
1078                                 return wfMsg(
1079                                         $msg,
1080                                         $this->link(
1081                                                 SpecialPage::getTitleFor( 'Undelete', $this->mTitle->getPrefixedDBkey() ),
1082                                                 wfMsgExt( 'restorelink', array( 'parsemag', 'escape' ), $wgLang->formatNum( $n ) ),
1083                                                 array(),
1084                                                 array(),
1085                                                 array( 'known', 'noclasses' )
1086                                         )
1087                                 );
1088                         }
1089                 }
1090                 return '';
1091         }
1092
1093         function printableLink() {
1094                 global $wgOut, $wgFeedClasses, $wgRequest, $wgLang;
1095
1096                 $s = array();
1097
1098                 if ( !$wgRequest->getBool( 'printable' ) ) {
1099                         $printurl = $wgRequest->escapeAppendQuery( 'printable=yes' );
1100                         $s[] = "<a href=\"$printurl\" rel=\"alternate\">" . wfMsg( 'printableversion' ) . '</a>';
1101                 }
1102
1103                 if( $wgOut->isSyndicated() ) {
1104                         foreach( $wgFeedClasses as $format => $class ) {
1105                                 $feedurl = $wgRequest->escapeAppendQuery( "feed=$format" );
1106                                 $s[] = "<a href=\"$feedurl\" rel=\"alternate\" type=\"application/{$format}+xml\""
1107                                                 . " class=\"feedlink\">" . wfMsgHtml( "feed-$format" ) . "</a>";
1108                         }
1109                 }
1110                 return $wgLang->pipeList( $s );
1111         }
1112
1113         function pageTitle() {
1114                 global $wgOut;
1115                 $s = '<h1 class="pagetitle">' . $wgOut->getPageTitle() . '</h1>';
1116                 return $s;
1117         }
1118
1119         function pageSubtitle() {
1120                 global $wgOut;
1121
1122                 $sub = $wgOut->getSubtitle();
1123                 if ( '' == $sub ) {
1124                         global $wgExtraSubtitle;
1125                         $sub = wfMsgExt( 'tagline', 'parsemag' ) . $wgExtraSubtitle;
1126                 }
1127                 $subpages = $this->subPageSubtitle();
1128                 $sub .= !empty( $subpages ) ? "</p><p class='subpages'>$subpages" : '';
1129                 $s = "<p class='subtitle'>{$sub}</p>\n";
1130                 return $s;
1131         }
1132
1133         function subPageSubtitle() {
1134                 $subpages = '';
1135                 if( !wfRunHooks( 'SkinSubPageSubtitle', array( &$subpages ) ) )
1136                         return $subpages;
1137
1138                 global $wgOut;
1139                 if( $wgOut->isArticle() && MWNamespace::hasSubpages( $this->mTitle->getNamespace() ) ) {
1140                         $ptext = $this->mTitle->getPrefixedText();
1141                         if( preg_match( '/\//', $ptext ) ) {
1142                                 $links = explode( '/', $ptext );
1143                                 array_pop( $links );
1144                                 $c = 0;
1145                                 $growinglink = '';
1146                                 $display = '';
1147                                 foreach( $links as $link ) {
1148                                         $growinglink .= $link;
1149                                         $display .= $link;
1150                                         $linkObj = Title::newFromText( $growinglink );
1151                                         if( is_object( $linkObj ) && $linkObj->exists() ){
1152                                                 $getlink = $this->link(
1153                                                         $linkObj,
1154                                                         htmlspecialchars( $display ),
1155                                                         array(),
1156                                                         array(),
1157                                                         array( 'known', 'noclasses' )
1158                                                 );
1159                                                 $c++;
1160                                                 if( $c > 1 ) {
1161                                                         $subpages .= wfMsgExt( 'pipe-separator', 'escapenoentities' );
1162                                                 } else  {
1163                                                         $subpages .= '&lt; ';
1164                                                 }
1165                                                 $subpages .= $getlink;
1166                                                 $display = '';
1167                                         } else {
1168                                                 $display .= '/';
1169                                         }
1170                                         $growinglink .= '/';
1171                                 }
1172                         }
1173                 }
1174                 return $subpages;
1175         }
1176
1177         /**
1178          * Returns true if the IP should be shown in the header
1179          */
1180         function showIPinHeader() {
1181                 global $wgShowIPinHeader;
1182                 return $wgShowIPinHeader && session_id() != '';
1183         }
1184
1185         function nameAndLogin() {
1186                 global $wgUser, $wgLang, $wgContLang;
1187
1188                 $logoutPage = $wgContLang->specialPage( 'Userlogout' );
1189
1190                 $ret = '';
1191                 if ( $wgUser->isAnon() ) {
1192                         if( $this->showIPinHeader() ) {
1193                                 $name = wfGetIP();
1194
1195                                 $talkLink = $this->link( $wgUser->getTalkPage(),
1196                                         $wgLang->getNsText( NS_TALK ) );
1197
1198                                 $ret .= "$name ($talkLink)";
1199                         } else {
1200                                 $ret .= wfMsg( 'notloggedin' );
1201                         }
1202
1203                         $returnTo = $this->mTitle->getPrefixedDBkey();
1204                         $query = array();
1205                         if ( $logoutPage != $returnTo ) {
1206                                 $query['returnto'] = $returnTo;
1207                         }
1208
1209                         $loginlink = $wgUser->isAllowed( 'createaccount' )
1210                                 ? 'nav-login-createaccount'
1211                                 : 'login';
1212                         $ret .= "\n<br />" . $this->link(
1213                                 SpecialPage::getTitleFor( 'Userlogin' ),
1214                                 wfMsg( $loginlink ), array(), $query
1215                         );
1216                 } else {
1217                         $returnTo = $this->mTitle->getPrefixedDBkey();
1218                         $talkLink = $this->link( $wgUser->getTalkPage(),
1219                                 $wgLang->getNsText( NS_TALK ) );
1220
1221                         $ret .= $this->link( $wgUser->getUserPage(),
1222                                 htmlspecialchars( $wgUser->getName() ) );
1223                         $ret .= " ($talkLink)<br />";
1224                         $ret .= $wgLang->pipeList( array(
1225                                 $this->link(
1226                                         SpecialPage::getTitleFor( 'Userlogout' ), wfMsg( 'logout' ),
1227                                         array(), array( 'returnto' => $returnTo )
1228                                 ),
1229                                 $this->specialLink( 'preferences' ),
1230                         ) );
1231                 }
1232                 $ret = $wgLang->pipeList( array(
1233                         $ret,
1234                         $this->link(
1235                                 Title::newFromText( wfMsgForContent( 'helppage' ) ),
1236                                 wfMsg( 'help' )
1237                         ),
1238                 ) );
1239
1240                 return $ret;
1241         }
1242
1243         function getSearchLink() {
1244                 $searchPage = SpecialPage::getTitleFor( 'Search' );
1245                 return $searchPage->getLocalURL();
1246         }
1247
1248         function escapeSearchLink() {
1249                 return htmlspecialchars( $this->getSearchLink() );
1250         }
1251
1252         function searchForm() {
1253                 global $wgRequest, $wgUseTwoButtonsSearchForm;
1254                 $search = $wgRequest->getText( 'search' );
1255
1256                 $s = '<form id="searchform'.$this->searchboxes.'" name="search" class="inline" method="post" action="'
1257                   . $this->escapeSearchLink() . "\">\n"
1258                   . '<input type="text" id="searchInput'.$this->searchboxes.'" name="search" size="19" value="'
1259                   . htmlspecialchars( substr( $search, 0, 256 ) ) . "\" />\n"
1260                   . '<input type="submit" name="go" value="' . wfMsg( 'searcharticle' ) . '" />';
1261
1262                 if( $wgUseTwoButtonsSearchForm )
1263                         $s .= '&nbsp;<input type="submit" name="fulltext" value="' . wfMsg( 'searchbutton' ) . "\" />\n";
1264                 else
1265                         $s .= ' <a href="' . $this->escapeSearchLink() . '" rel="search">' . wfMsg( 'powersearch-legend' ) . "</a>\n";
1266
1267                 $s .= '</form>';
1268
1269                 // Ensure unique id's for search boxes made after the first
1270                 $this->searchboxes = $this->searchboxes == '' ? 2 : $this->searchboxes + 1;
1271
1272                 return $s;
1273         }
1274
1275         function topLinks() {
1276                 global $wgOut;
1277
1278                 $s = array(
1279                         $this->mainPageLink(),
1280                         $this->specialLink( 'recentchanges' )
1281                 );
1282
1283                 if ( $wgOut->isArticleRelated() ) {
1284                         $s[] = $this->editThisPage();
1285                         $s[] = $this->historyLink();
1286                 }
1287                 # Many people don't like this dropdown box
1288                 #$s[] = $this->specialPagesList();
1289
1290                 if( $this->variantLinks() ) {
1291                         $s[] = $this->variantLinks();
1292                 }
1293
1294                 if( $this->extensionTabLinks() ) {
1295                         $s[] = $this->extensionTabLinks();
1296                 }
1297
1298                 // FIXME: Is using Language::pipeList impossible here? Do not quite understand the use of the newline
1299                 return implode( $s, wfMsgExt( 'pipe-separator', 'escapenoentities' ) . "\n" );
1300         }
1301
1302         /**
1303          * Compatibility for extensions adding functionality through tabs.
1304          * Eventually these old skins should be replaced with SkinTemplate-based
1305          * versions, sigh...
1306          * @return string
1307          */
1308         function extensionTabLinks() {
1309                 $tabs = array();
1310                 $out = '';
1311                 $s = array();
1312                 wfRunHooks( 'SkinTemplateTabs', array( $this, &$tabs ) );
1313                 foreach( $tabs as $tab ) {
1314                         $s[] = Xml::element( 'a',
1315                                 array( 'href' => $tab['href'] ),
1316                                 $tab['text'] );
1317                 }
1318
1319                 if( count( $s ) ) {
1320                         global $wgLang;
1321
1322                         $out = wfMsgExt( 'pipe-separator' , 'escapenoentities' );
1323                         $out .= $wgLang->pipeList( $s );
1324                 }
1325
1326                 return $out;
1327         }
1328
1329         /**
1330          * Language/charset variant links for classic-style skins
1331          * @return string
1332          */
1333         function variantLinks() {
1334                 $s = '';
1335                 /* show links to different language variants */
1336                 global $wgDisableLangConversion, $wgLang, $wgContLang;
1337                 $variants = $wgContLang->getVariants();
1338                 if( !$wgDisableLangConversion && sizeof( $variants ) > 1 ) {
1339                         foreach( $variants as $code ) {
1340                                 $varname = $wgContLang->getVariantname( $code );
1341                                 if( $varname == 'disable' )
1342                                         continue;
1343                                 $s = $wgLang->pipeList( array(
1344                                         $s,
1345                                         '<a href="' . $this->mTitle->escapeLocalUrl( 'variant=' . $code ) . '">' . htmlspecialchars( $varname ) . '</a>'
1346                                 ) );
1347                         }
1348                 }
1349                 return $s;
1350         }
1351
1352         function bottomLinks() {
1353                 global $wgOut, $wgUser, $wgUseTrackbacks;
1354                 $sep = wfMsgExt( 'pipe-separator', 'escapenoentities' ) . "\n";
1355
1356                 $s = '';
1357                 if ( $wgOut->isArticleRelated() ) {
1358                         $element[] = '<strong>' . $this->editThisPage() . '</strong>';
1359                         if ( $wgUser->isLoggedIn() ) {
1360                                 $element[] = $this->watchThisPage();
1361                         }
1362                         $element[] = $this->talkLink();
1363                         $element[] = $this->historyLink();
1364                         $element[] = $this->whatLinksHere();
1365                         $element[] = $this->watchPageLinksLink();
1366
1367                         if( $wgUseTrackbacks )
1368                                 $element[] = $this->trackbackLink();
1369
1370                         if ( $this->mTitle->getNamespace() == NS_USER
1371                             || $this->mTitle->getNamespace() == NS_USER_TALK ){
1372                                 $id = User::idFromName( $this->mTitle->getText() );
1373                                 $ip = User::isIP( $this->mTitle->getText() );
1374
1375                                 if( $id || $ip ) { # both anons and non-anons have contri list
1376                                         $element[] = $this->userContribsLink();
1377                                 }
1378                                 if( $this->showEmailUser( $id ) ) {
1379                                         $element[] = $this->emailUserLink();
1380                                 }
1381                         }
1382
1383                         $s = implode( $element, $sep );
1384
1385                         if ( $this->mTitle->getArticleId() ) {
1386                                 $s .= "\n<br />";
1387                                 if( $wgUser->isAllowed( 'delete' ) ) { $s .= $this->deleteThisPage(); }
1388                                 if( $wgUser->isAllowed( 'protect' ) ) { $s .= $sep . $this->protectThisPage(); }
1389                                 if( $wgUser->isAllowed( 'move' ) ) { $s .= $sep . $this->moveThisPage(); }
1390                         }
1391                         $s .= "<br />\n" . $this->otherLanguages();
1392                 }
1393
1394                 return $s;
1395         }
1396
1397         function pageStats() {
1398                 global $wgOut, $wgLang, $wgArticle, $wgRequest, $wgUser;
1399                 global $wgDisableCounters, $wgMaxCredits, $wgShowCreditsIfMax, $wgPageShowWatchingUsers;
1400
1401                 $oldid = $wgRequest->getVal( 'oldid' );
1402                 $diff = $wgRequest->getVal( 'diff' );
1403                 if ( ! $wgOut->isArticle() ) { return ''; }
1404                 if( !$wgArticle instanceOf Article ) { return ''; }
1405                 if ( isset( $oldid ) || isset( $diff ) ) { return ''; }
1406                 if ( 0 == $wgArticle->getID() ) { return ''; }
1407
1408                 $s = '';
1409                 if ( !$wgDisableCounters ) {
1410                         $count = $wgLang->formatNum( $wgArticle->getCount() );
1411                         if ( $count ) {
1412                                 $s = wfMsgExt( 'viewcount', array( 'parseinline' ), $count );
1413                         }
1414                 }
1415
1416                 if( $wgMaxCredits != 0 ){
1417                         $s .= ' ' . Credits::getCredits( $wgArticle, $wgMaxCredits, $wgShowCreditsIfMax );
1418                 } else {
1419                         $s .= $this->lastModified();
1420                 }
1421
1422                 if( $wgPageShowWatchingUsers && $wgUser->getOption( 'shownumberswatching' ) ) {
1423                         $dbr = wfGetDB( DB_SLAVE );
1424                         $res = $dbr->select( 'watchlist',
1425                                 array( 'COUNT(*) AS n' ),
1426                                 array( 'wl_title' => $dbr->strencode( $this->mTitle->getDBkey() ), 'wl_namespace' => $this->mTitle->getNamespace() ),
1427                                 __METHOD__
1428                         );
1429                         $x = $dbr->fetchObject( $res );
1430
1431                         $s .= ' ' . wfMsgExt( 'number_of_watching_users_pageview',
1432                                 array( 'parseinline' ), $wgLang->formatNum( $x->n )
1433                         );
1434                 }
1435
1436                 return $s . ' ' .  $this->getCopyright();
1437         }
1438
1439         function getCopyright( $type = 'detect' ) {
1440                 global $wgRightsPage, $wgRightsUrl, $wgRightsText, $wgRequest, $wgArticle;
1441
1442                 if ( $type == 'detect' ) {
1443                         $diff = $wgRequest->getVal( 'diff' );
1444                         $isCur = $wgArticle && $wgArticle->isCurrent();
1445                         if ( is_null( $diff ) && !$isCur && wfMsgForContent( 'history_copyright' ) !== '-' ) {
1446                                 $type = 'history';
1447                         } else {
1448                                 $type = 'normal';
1449                         }
1450                 }
1451
1452                 if ( $type == 'history' ) {
1453                         $msg = 'history_copyright';
1454                 } else {
1455                         $msg = 'copyright';
1456                 }
1457
1458                 $out = '';
1459                 if( $wgRightsPage ) {
1460                         $title = Title::newFromText( $wgRightsPage );
1461                         $link = $this->linkKnown( $title, $wgRightsText );
1462                 } elseif( $wgRightsUrl ) {
1463                         $link = $this->makeExternalLink( $wgRightsUrl, $wgRightsText );
1464                 } elseif( $wgRightsText ) {
1465                         $link = $wgRightsText;
1466                 } else {
1467                         # Give up now
1468                         return $out;
1469                 }
1470                 // Allow for site and per-namespace customization of copyright notice.
1471                 if( isset($wgArticle) )
1472                         wfRunHooks( 'SkinCopyrightFooter', array( $wgArticle->getTitle(), $type, &$msg, &$link ) );
1473
1474                 $out .= wfMsgForContent( $msg, $link );
1475                 return $out;
1476         }
1477
1478         function getCopyrightIcon() {
1479                 global $wgRightsUrl, $wgRightsText, $wgRightsIcon, $wgCopyrightIcon;
1480                 $out = '';
1481                 if ( isset( $wgCopyrightIcon ) && $wgCopyrightIcon ) {
1482                         $out = $wgCopyrightIcon;
1483                 } else if ( $wgRightsIcon ) {
1484                         $icon = htmlspecialchars( $wgRightsIcon );
1485                         if ( $wgRightsUrl ) {
1486                                 $url = htmlspecialchars( $wgRightsUrl );
1487                                 $out .= '<a href="'.$url.'">';
1488                         }
1489                         $text = htmlspecialchars( $wgRightsText );
1490                         $out .= "<img src=\"$icon\" alt='$text' />";
1491                         if ( $wgRightsUrl ) {
1492                                 $out .= '</a>';
1493                         }
1494                 }
1495                 return $out;
1496         }
1497
1498         function getPoweredBy() {
1499                 global $wgStylePath;
1500                 $url = htmlspecialchars( "$wgStylePath/common/images/poweredby_mediawiki_88x31.png" );
1501                 $img = '<a href="http://www.mediawiki.org/"><img src="'.$url.'" alt="Powered by MediaWiki" /></a>';
1502                 return $img;
1503         }
1504
1505         function lastModified() {
1506                 global $wgLang, $wgArticle;
1507                 if( $this->mRevisionId ) {
1508                         $timestamp = Revision::getTimestampFromId( $wgArticle->getTitle(), $this->mRevisionId );
1509                 } else {
1510                         $timestamp = $wgArticle->getTimestamp();
1511                 }
1512                 if ( $timestamp ) {
1513                         $d = $wgLang->date( $timestamp, true );
1514                         $t = $wgLang->time( $timestamp, true );
1515                         $s = ' ' . wfMsg( 'lastmodifiedat', $d, $t );
1516                 } else {
1517                         $s = '';
1518                 }
1519                 if ( wfGetLB()->getLaggedSlaveMode() ) {
1520                         $s .= ' <strong>' . wfMsg( 'laggedslavemode' ) . '</strong>';
1521                 }
1522                 return $s;
1523         }
1524
1525         function logoText( $align = '' ) {
1526                 if ( '' != $align ) {
1527                         $a = " align='{$align}'";
1528                 } else {
1529                         $a = '';
1530                 }
1531
1532                 $mp = wfMsg( 'mainpage' );
1533                 $mptitle = Title::newMainPage();
1534                 $url = ( is_object( $mptitle ) ? $mptitle->escapeLocalURL() : '' );
1535
1536                 $logourl = $this->getLogo();
1537                 $s = "<a href='{$url}'><img{$a} src='{$logourl}' alt='[{$mp}]' /></a>";
1538                 return $s;
1539         }
1540
1541         /**
1542          * show a drop-down box of special pages
1543          */
1544         function specialPagesList() {
1545                 global $wgUser, $wgContLang, $wgServer, $wgRedirectScript;
1546                 $pages = array_merge( SpecialPage::getRegularPages(), SpecialPage::getRestrictedPages() );
1547                 foreach ( $pages as $name => $page ) {
1548                         $pages[$name] = $page->getDescription();
1549                 }
1550
1551                 $go = wfMsg( 'go' );
1552                 $sp = wfMsg( 'specialpages' );
1553                 $spp = $wgContLang->specialPage( 'Specialpages' );
1554
1555                 $s = '<form id="specialpages" method="get" ' .
1556                   'action="' . htmlspecialchars( "{$wgServer}{$wgRedirectScript}" ) . "\">\n";
1557                 $s .= "<select name=\"wpDropdown\">\n";
1558                 $s .= "<option value=\"{$spp}\">{$sp}</option>\n";
1559
1560
1561                 foreach ( $pages as $name => $desc ) {
1562                         $p = $wgContLang->specialPage( $name );
1563                         $s .= "<option value=\"{$p}\">{$desc}</option>\n";
1564                 }
1565                 $s .= "</select>\n";
1566                 $s .= "<input type='submit' value=\"{$go}\" name='redirect' />\n";
1567                 $s .= "</form>\n";
1568                 return $s;
1569         }
1570
1571         function mainPageLink() {
1572                 $s = $this->link(
1573                         Title::newMainPage(),
1574                         wfMsg( 'mainpage' ),
1575                         array(),
1576                         array(),
1577                         array( 'known', 'noclasses' )
1578                 );
1579                 return $s;
1580         }
1581
1582         function copyrightLink() {
1583                 $title = Title::newFromText( wfMsgForContent( 'copyrightpage' ) );
1584                 $s = $this->linkKnown(
1585                         $title,
1586                         wfMsg( 'copyrightpagename' )
1587                 );
1588                 return $s;
1589         }
1590
1591         private function footerLink ( $desc, $page ) {
1592                 // if the link description has been set to "-" in the default language,
1593                 if ( wfMsgForContent( $desc )  == '-') {
1594                         // then it is disabled, for all languages.
1595                         return '';
1596                 } else {
1597                         // Otherwise, we display the link for the user, described in their
1598                         // language (which may or may not be the same as the default language),
1599                         // but we make the link target be the one site-wide page.
1600                         $title = Title::newFromText( wfMsgForContent( $page ) );
1601                         return $this->linkKnown(
1602                                 $title,
1603                                 wfMsgExt( $desc, array( 'parsemag', 'escapenoentities' ) )
1604                         );
1605                 }
1606         }
1607
1608         function privacyLink() {
1609                 return $this->footerLink( 'privacy', 'privacypage' );
1610         }
1611
1612         function aboutLink() {
1613                 return $this->footerLink( 'aboutsite', 'aboutpage' );
1614         }
1615
1616         function disclaimerLink() {
1617                 return $this->footerLink( 'disclaimers', 'disclaimerpage' );
1618         }
1619
1620         function editThisPage() {
1621                 global $wgOut;
1622
1623                 if ( !$wgOut->isArticleRelated() ) {
1624                         $s = wfMsg( 'protectedpage' );
1625                 } else {
1626                         if( $this->mTitle->quickUserCan( 'edit' ) && $this->mTitle->exists() ) {
1627                                 $t = wfMsg( 'editthispage' );
1628                         } elseif( $this->mTitle->quickUserCan( 'create' ) && !$this->mTitle->exists() ) {
1629                                 $t = wfMsg( 'create-this-page' );
1630                         } else {
1631                                 $t = wfMsg( 'viewsource' );
1632                         }
1633
1634                         $s = $this->link(
1635                                 $this->mTitle,
1636                                 $t,
1637                                 array(),
1638                                 $this->editUrlOptions(),
1639                                 array( 'known', 'noclasses' )
1640                         );
1641                 }
1642                 return $s;
1643         }
1644
1645         /**
1646          * Return URL options for the 'edit page' link.
1647          * This may include an 'oldid' specifier, if the current page view is such.
1648          *
1649          * @return array
1650          * @private
1651          */
1652         function editUrlOptions() {
1653                 global $wgArticle;
1654
1655                 $options = array( 'action' => 'edit' );
1656
1657                 if( $this->mRevisionId && ! $wgArticle->isCurrent() ) {
1658                         $options['oldid'] = intval( $this->mRevisionId );
1659                 }
1660
1661                 return $options;
1662         }
1663
1664         function deleteThisPage() {
1665                 global $wgUser, $wgRequest;
1666
1667                 $diff = $wgRequest->getVal( 'diff' );
1668                 if ( $this->mTitle->getArticleId() && ( !$diff ) && $wgUser->isAllowed( 'delete' ) ) {
1669                         $t = wfMsg( 'deletethispage' );
1670
1671                         $s = $this->link(
1672                                 $this->mTitle,
1673                                 $t,
1674                                 array(),
1675                                 array( 'action' => 'delete' ),
1676                                 array( 'known', 'noclasses' )
1677                         );
1678                 } else {
1679                         $s = '';
1680                 }
1681                 return $s;
1682         }
1683
1684         function protectThisPage() {
1685                 global $wgUser, $wgRequest;
1686
1687                 $diff = $wgRequest->getVal( 'diff' );
1688                 if ( $this->mTitle->getArticleId() && ( ! $diff ) && $wgUser->isAllowed('protect') ) {
1689                         if ( $this->mTitle->isProtected() ) {
1690                                 $text = wfMsg( 'unprotectthispage' );
1691                                 $query = array( 'action' => 'unprotect' );
1692                         } else {
1693                                 $text = wfMsg( 'protectthispage' );
1694                                 $query = array( 'action' => 'protect' );
1695                         }
1696
1697                         $s = $this->link(
1698                                 $this->mTitle,
1699                                 $text,
1700                                 array(),
1701                                 $query,
1702                                 array( 'known', 'noclasses' )
1703                         );
1704                 } else {
1705                         $s = '';
1706                 }
1707                 return $s;
1708         }
1709
1710         function watchThisPage() {
1711                 global $wgOut;
1712                 ++$this->mWatchLinkNum;
1713
1714                 if ( $wgOut->isArticleRelated() ) {
1715                         if ( $this->mTitle->userIsWatching() ) {
1716                                 $text = wfMsg( 'unwatchthispage' );
1717                                 $query = array( 'action' => 'unwatch' );
1718                                 $id = 'mw-unwatch-link' . $this->mWatchLinkNum;
1719                         } else {
1720                                 $text = wfMsg( 'watchthispage' );
1721                                 $query = array( 'action' => 'watch' );
1722                                 $id = 'mw-watch-link' . $this->mWatchLinkNum;
1723                         }
1724
1725                         $s = $this->link(
1726                                 $this->mTitle,
1727                                 $text,
1728                                 array( 'id' => $id ),
1729                                 $query,
1730                                 array( 'known', 'noclasses' )
1731                         );
1732                 } else {
1733                         $s = wfMsg( 'notanarticle' );
1734                 }
1735                 return $s;
1736         }
1737
1738         function moveThisPage() {
1739                 if ( $this->mTitle->quickUserCan( 'move' ) ) {
1740                         return $this->link(
1741                                 SpecialPage::getTitleFor( 'Movepage' ),
1742                                 wfMsg( 'movethispage' ),
1743                                 array(),
1744                                 array( 'target' => $this->mTitle->getPrefixedDBkey() ),
1745                                 array( 'known', 'noclasses' )
1746                         );
1747                 } else {
1748                         // no message if page is protected - would be redundant
1749                         return '';
1750                 }
1751         }
1752
1753         function historyLink() {
1754                 return $this->link(
1755                         $this->mTitle,
1756                         wfMsgHtml( 'history' ),
1757                         array( 'rel' => 'archives' ),
1758                         array( 'action' => 'history' )
1759                 );
1760         }
1761
1762         function whatLinksHere() {
1763                 return $this->link(
1764                         SpecialPage::getTitleFor( 'Whatlinkshere', $this->mTitle->getPrefixedDBkey() ),
1765                         wfMsgHtml( 'whatlinkshere' ),
1766                         array(),
1767                         array(),
1768                         array( 'known', 'noclasses' )
1769                 );
1770         }
1771
1772         function userContribsLink() {
1773                 return $this->link(
1774                         SpecialPage::getTitleFor( 'Contributions', $this->mTitle->getDBkey() ),
1775                         wfMsgHtml( 'contributions' ),
1776                         array(),
1777                         array(),
1778                         array( 'known', 'noclasses' )
1779                 );
1780         }
1781
1782         function showEmailUser( $id ) {
1783                 global $wgUser;
1784                 $targetUser = User::newFromId( $id );
1785                 return  $wgUser->canSendEmail() && # the sending user must have a confirmed email address
1786                         $targetUser->canReceiveEmail(); # the target user must have a confirmed email address and allow emails from users
1787         }
1788
1789         function emailUserLink() {
1790                 return $this->link(
1791                         SpecialPage::getTitleFor( 'Emailuser', $this->mTitle->getDBkey() ),
1792                         wfMsg( 'emailuser' ),
1793                         array(),
1794                         array(),
1795                         array( 'known', 'noclasses' )
1796                 );
1797         }
1798
1799         function watchPageLinksLink() {
1800                 global $wgOut;
1801                 if ( ! $wgOut->isArticleRelated() ) {
1802                         return '(' . wfMsg( 'notanarticle' ) . ')';
1803                 } else {
1804                         return $this->link(
1805                                 SpecialPage::getTitleFor( 'Recentchangeslinked', $this->mTitle->getPrefixedDBkey() ),
1806                                 wfMsg( 'recentchangeslinked-toolbox' ),
1807                                 array(),
1808                                 array(),
1809                                 array( 'known', 'noclasses' )
1810                         );
1811                 }
1812         }
1813
1814         function trackbackLink() {
1815                 return '<a href="' . $this->mTitle->trackbackURL() . '">'
1816                         . wfMsg( 'trackbacklink' ) . '</a>';
1817         }
1818
1819         function otherLanguages() {
1820                 global $wgOut, $wgContLang, $wgHideInterlanguageLinks;
1821
1822                 if ( $wgHideInterlanguageLinks ) {
1823                         return '';
1824                 }
1825
1826                 $a = $wgOut->getLanguageLinks();
1827                 if ( 0 == count( $a ) ) {
1828                         return '';
1829                 }
1830
1831                 $s = wfMsg( 'otherlanguages' ) . wfMsg( 'colon-separator' );
1832                 $first = true;
1833                 if( $wgContLang->isRTL() ) $s .= '<span dir="LTR">';
1834                 foreach( $a as $l ) {
1835                         if ( !$first ) {
1836                                 $s .= wfMsgExt( 'pipe-separator', 'escapenoentities' );
1837                         }
1838                         $first = false;
1839
1840                         $nt = Title::newFromText( $l );
1841                         $url = $nt->escapeFullURL();
1842                         $text = $wgContLang->getLanguageName( $nt->getInterwiki() );
1843
1844                         if ( '' == $text ) { $text = $l; }
1845                         $style = $this->getExternalLinkAttributes();
1846                         $s .= "<a href=\"{$url}\"{$style}>{$text}</a>";
1847                 }
1848                 if( $wgContLang->isRTL() ) $s .= '</span>';
1849                 return $s;
1850         }
1851
1852         function talkLink() {
1853                 if ( NS_SPECIAL == $this->mTitle->getNamespace() ) {
1854                         # No discussion links for special pages
1855                         return '';
1856                 }
1857
1858                 $linkOptions = array();
1859
1860                 if( $this->mTitle->isTalkPage() ) {
1861                         $link = $this->mTitle->getSubjectPage();
1862                         switch( $link->getNamespace() ) {
1863                                 case NS_MAIN:
1864                                         $text = wfMsg( 'articlepage' );
1865                                         break;
1866                                 case NS_USER:
1867                                         $text = wfMsg( 'userpage' );
1868                                         break;
1869                                 case NS_PROJECT:
1870                                         $text = wfMsg( 'projectpage' );
1871                                         break;
1872                                 case NS_FILE:
1873                                         $text = wfMsg( 'imagepage' );
1874                                         # Make link known if image exists, even if the desc. page doesn't.
1875                                         if( wfFindFile( $link ) )
1876                                                 $linkOptions[] = 'known';
1877                                         break;
1878                                 case NS_MEDIAWIKI:
1879                                         $text = wfMsg( 'mediawikipage' );
1880                                         break;
1881                                 case NS_TEMPLATE:
1882                                         $text = wfMsg( 'templatepage' );
1883                                         break;
1884                                 case NS_HELP:
1885                                         $text = wfMsg( 'viewhelppage' );
1886                                         break;
1887                                 case NS_CATEGORY:
1888                                         $text = wfMsg( 'categorypage' );
1889                                         break;
1890                                 default:
1891                                         $text = wfMsg( 'articlepage' );
1892                         }
1893                 } else {
1894                         $link = $this->mTitle->getTalkPage();
1895                         $text = wfMsg( 'talkpage' );
1896                 }
1897
1898                 $s = $this->link( $link, $text, array(), array(), $linkOptions );
1899
1900                 return $s;
1901         }
1902
1903         function commentLink() {
1904                 global $wgOut;
1905
1906                 if ( $this->mTitle->getNamespace() == NS_SPECIAL ) {
1907                         return '';
1908                 }
1909
1910                 # __NEWSECTIONLINK___ changes behaviour here
1911                 # If it is present, the link points to this page, otherwise
1912                 # it points to the talk page
1913                 if( $this->mTitle->isTalkPage() ) {
1914                         $title = $this->mTitle;
1915                 } elseif( $wgOut->showNewSectionLink() ) {
1916                         $title = $this->mTitle;
1917                 } else {
1918                         $title = $this->mTitle->getTalkPage();
1919                 }
1920
1921                 return $this->link(
1922                         $title,
1923                         wfMsg( 'postcomment' ),
1924                         array(),
1925                         array(
1926                                 'action' => 'edit',
1927                                 'section' => 'new'
1928                         ),
1929                         array( 'known', 'noclasses' )
1930                 );
1931         }
1932
1933         /* these are used extensively in SkinTemplate, but also some other places */
1934         static function makeMainPageUrl( $urlaction = '' ) {
1935                 $title = Title::newMainPage();
1936                 self::checkTitle( $title, '' );
1937                 return $title->getLocalURL( $urlaction );
1938         }
1939
1940         static function makeSpecialUrl( $name, $urlaction = '' ) {
1941                 $title = SpecialPage::getTitleFor( $name );
1942                 return $title->getLocalURL( $urlaction );
1943         }
1944
1945         static function makeSpecialUrlSubpage( $name, $subpage, $urlaction = '' ) {
1946                 $title = SpecialPage::getSafeTitleFor( $name, $subpage );
1947                 return $title->getLocalURL( $urlaction );
1948         }
1949
1950         static function makeI18nUrl( $name, $urlaction = '' ) {
1951                 $title = Title::newFromText( wfMsgForContent( $name ) );
1952                 self::checkTitle( $title, $name );
1953                 return $title->getLocalURL( $urlaction );
1954         }
1955
1956         static function makeUrl( $name, $urlaction = '' ) {
1957                 $title = Title::newFromText( $name );
1958                 self::checkTitle( $title, $name );
1959                 return $title->getLocalURL( $urlaction );
1960         }
1961
1962         # If url string starts with http, consider as external URL, else
1963         # internal
1964         static function makeInternalOrExternalUrl( $name ) {
1965                 if ( preg_match( '/^(?:' . wfUrlProtocols() . ')/', $name ) ) {
1966                         return $name;
1967                 } else {
1968                         return self::makeUrl( $name );
1969                 }
1970         }
1971
1972         # this can be passed the NS number as defined in Language.php
1973         static function makeNSUrl( $name, $urlaction = '', $namespace = NS_MAIN ) {
1974                 $title = Title::makeTitleSafe( $namespace, $name );
1975                 self::checkTitle( $title, $name );
1976                 return $title->getLocalURL( $urlaction );
1977         }
1978
1979         /* these return an array with the 'href' and boolean 'exists' */
1980         static function makeUrlDetails( $name, $urlaction = '' ) {
1981                 $title = Title::newFromText( $name );
1982                 self::checkTitle( $title, $name );
1983                 return array(
1984                         'href' => $title->getLocalURL( $urlaction ),
1985                         'exists' => $title->getArticleID() != 0 ? true : false
1986                 );
1987         }
1988
1989         /**
1990          * Make URL details where the article exists (or at least it's convenient to think so)
1991          */
1992         static function makeKnownUrlDetails( $name, $urlaction = '' ) {
1993                 $title = Title::newFromText( $name );
1994                 self::checkTitle( $title, $name );
1995                 return array(
1996                         'href' => $title->getLocalURL( $urlaction ),
1997                         'exists' => true
1998                 );
1999         }
2000
2001         # make sure we have some title to operate on
2002         static function checkTitle( &$title, $name ) {
2003                 if( !is_object( $title ) ) {
2004                         $title = Title::newFromText( $name );
2005                         if( !is_object( $title ) ) {
2006                                 $title = Title::newFromText( '--error: link target missing--' );
2007                         }
2008                 }
2009         }
2010
2011         /**
2012          * Build an array that represents the sidebar(s), the navigation bar among them
2013          *
2014          * @return array
2015          */
2016         function buildSidebar() {
2017                 global $parserMemc, $wgEnableSidebarCache, $wgSidebarCacheExpiry;
2018                 global $wgLang;
2019                 wfProfileIn( __METHOD__ );
2020
2021                 $key = wfMemcKey( 'sidebar', $wgLang->getCode() );
2022
2023                 if ( $wgEnableSidebarCache ) {
2024                         $cachedsidebar = $parserMemc->get( $key );
2025                         if ( $cachedsidebar ) {
2026                                 wfProfileOut( __METHOD__ );
2027                                 return $cachedsidebar;
2028                         }
2029                 }
2030
2031                 $bar = array();
2032                 $lines = explode( "\n", wfMsgForContent( 'sidebar' ) );
2033                 $heading = '';
2034                 foreach( $lines as $line ) {
2035                         if( strpos( $line, '*' ) !== 0 )
2036                                 continue;
2037                         if( strpos( $line, '**') !== 0 ) {
2038                                 $heading = trim( $line, '* ' );
2039                                 if( !array_key_exists( $heading, $bar ) ) $bar[$heading] = array();
2040                         } else {
2041                                 if( strpos( $line, '|' ) !== false ) { // sanity check
2042                                         $line = array_map( 'trim', explode( '|', trim( $line, '* ' ), 2 ) );
2043                                         $link = wfMsgForContent( $line[0] );
2044                                         if( $link == '-' )
2045                                                 continue;
2046
2047                                         $text = wfMsgExt( $line[1], 'parsemag' );
2048                                         if( wfEmptyMsg( $line[1], $text ) )
2049                                                 $text = $line[1];
2050                                         if( wfEmptyMsg( $line[0], $link ) )
2051                                                 $link = $line[0];
2052
2053                                         if ( preg_match( '/^(?:' . wfUrlProtocols() . ')/', $link ) ) {
2054                                                 $href = $link;
2055                                         } else {
2056                                                 $title = Title::newFromText( $link );
2057                                                 if ( $title ) {
2058                                                         $title = $title->fixSpecialName();
2059                                                         $href = $title->getLocalURL();
2060                                                 } else {
2061                                                         $href = 'INVALID-TITLE';
2062                                                 }
2063                                         }
2064
2065                                         $bar[$heading][] = array(
2066                                                 'text' => $text,
2067                                                 'href' => $href,
2068                                                 'id' => 'n-' . strtr( $line[1], ' ', '-' ),
2069                                                 'active' => false
2070                                         );
2071                                 } else { continue; }
2072                         }
2073                 }
2074                 wfRunHooks( 'SkinBuildSidebar', array( $this, &$bar ) );
2075                 if ( $wgEnableSidebarCache ) $parserMemc->set( $key, $bar, $wgSidebarCacheExpiry );
2076                 wfProfileOut( __METHOD__ );
2077                 return $bar;
2078         }
2079
2080         /**
2081          * Should we include common/wikiprintable.css?  Skins that have their own
2082          * print stylesheet should override this and return false.  (This is an
2083          * ugly hack to get Monobook to play nicely with
2084          * OutputPage::headElement().)
2085          *
2086          * @return bool
2087          */
2088         public function commonPrintStylesheet() {
2089                 return true;
2090         }
2091 }