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                 $fontstyle = $wgUser->getOption( 'editfont' );
 608                 if ( $fontstyle !== 'default' ) {
 609                         $s .= "textarea { font-family: $fontstyle; }\n";
 610                 }
 611                 return $s;
 612         }
 613
 614         /**
 615          * @private
 616          */
 617         function setupUserCss( OutputPage $out ) {
 618                 global $wgRequest, $wgContLang, $wgUser;
 619                 global $wgAllowUserCss, $wgUseSiteCss, $wgSquidMaxage, $wgStylePath;
 620
 621                 wfProfileIn( __METHOD__ );
 622
 623                 $this->setupSkinUserCss( $out );
 624
 625                 $siteargs = array(
 626                         'action' => 'raw',
 627                         'maxage' => $wgSquidMaxage,
 628                 );
 629
 630                 // Add any extension CSS
 631                 foreach( $out->getExtStyle() as $tag ) {
 632                         $out->addStyle( $tag['href'] );
 633                 }
 634
 635                 // If we use the site's dynamic CSS, throw that in, too
 636                 // Per-site custom styles
 637                 if( $wgUseSiteCss ) {
 638                         global $wgHandheldStyle;
 639                         $query = wfArrayToCGI( array(
 640                                 'usemsgcache' => 'yes',
 641                                 'ctype' => 'text/css',
 642                                 'smaxage' => $wgSquidMaxage
 643                         ) + $siteargs );
 644                         # Site settings must override extension css! (bug 15025)
 645                         $out->addStyle( self::makeNSUrl( 'Common.css', $query, NS_MEDIAWIKI ) );
 646                         $out->addStyle( self::makeNSUrl( 'Print.css', $query, NS_MEDIAWIKI ), 'print' );
 647                         if( $wgHandheldStyle ) {
 648                                 $out->addStyle( self::makeNSUrl( 'Handheld.css', $query, NS_MEDIAWIKI ), 'handheld' );
 649                         }
 650                         $out->addStyle( self::makeNSUrl( $this->getSkinName() . '.css', $query, NS_MEDIAWIKI ) );
 651                 }
 652
 653                 if( $wgUser->isLoggedIn() ) {
 654                         // Ensure that logged-in users' generated CSS isn't clobbered
 655                         // by anons' publicly cacheable generated CSS.
 656                         $siteargs['smaxage'] = '0';
 657                         $siteargs['ts'] = $wgUser->mTouched;
 658                 }
 659                 // Per-user styles based on preferences
 660                 $siteargs['gen'] = 'css';
 661                 if( ( $us = $wgRequest->getVal( 'useskin', '' ) ) !== '' ) {
 662                         $siteargs['useskin'] = $us;
 663                 }
 664                 $out->addStyle( self::makeUrl( '-', wfArrayToCGI( $siteargs ) ) );
 665
 666                 // Per-user custom style pages
 667                 if( $wgAllowUserCss && $wgUser->isLoggedIn() ) {
 668                         $action = $wgRequest->getVal( 'action' );
 669                         # If we're previewing the CSS page, use it
 670                         if( $this->mTitle->isCssSubpage() && $this->userCanPreview( $action ) ) {
 671                                 $previewCss = $wgRequest->getText( 'wpTextbox1' );
 672                                 // @FIXME: properly escape the cdata!
 673                                 $this->usercss = "/*<![CDATA[*/\n" . $previewCss . "/*]]>*/";
 674                         } else {
 675                                 $out->addStyle( self::makeUrl( $this->userpage . '/' . $this->getSkinName() .'.css',
 676                                         'action=raw&ctype=text/css' ) );
 677                         }
 678                 }
 679
 680                 wfProfileOut( __METHOD__ );
 681         }
 682
 683         /**
 684          * Add skin specific stylesheets
 685          * @param $out OutputPage
 686          */
 687         function setupSkinUserCss( OutputPage $out ) {
 688                 $out->addStyle( 'common/shared.css' );
 689                 $out->addStyle( 'common/oldshared.css' );
 690                 $out->addStyle( $this->getStylesheet() );
 691                 $out->addStyle( 'common/common_rtl.css', '', '', 'rtl' );
 692         }
 693
 694         function getBodyOptions() {
 695                 global $wgUser, $wgOut, $wgRequest, $wgContLang;
 696
 697                 extract( $wgRequest->getValues( 'oldid', 'redirect', 'diff' ) );
 698
 699                 if ( 0 != $this->mTitle->getNamespace() ) {
 700                         $a = array( 'bgcolor' => '#ffffec' );
 701                 }
 702                 else $a = array( 'bgcolor' => '#FFFFFF' );
 703                 if( $wgOut->isArticle() && $wgUser->getOption( 'editondblclick' ) &&
 704                   $this->mTitle->quickUserCan( 'edit' ) ) {
 705                         $s = $this->mTitle->getFullURL( $this->editUrlOptions() );
 706                         $s = 'document.location = "' .Xml::escapeJsString( $s ) .'";';
 707                         $a += array( 'ondblclick' => $s );
 708                 }
 709                 $a['onload'] = $wgOut->getOnloadHandler();
 710                 $a['class'] =
 711                         'mediawiki' .
 712                         ' '.( $wgContLang->isRTL() ? 'rtl' : 'ltr' ).
 713                         ' '.$this->getPageClasses( $this->mTitle ) .
 714                         ' skin-'. Sanitizer::escapeClass( $this->getSkinName() );
 715                 return $a;
 716         }
 717
 718         function getPageClasses( $title ) {
 719                 $numeric = 'ns-'.$title->getNamespace();
 720                 if( $title->getNamespace() == NS_SPECIAL ) {
 721                         $type = 'ns-special';
 722                 } elseif( $title->isTalkPage() ) {
 723                         $type = 'ns-talk';
 724                 } else {
 725                         $type = 'ns-subject';
 726                 }
 727                 $name = Sanitizer::escapeClass( 'page-'.$title->getPrefixedText() );
 728                 return "$numeric $type $name";
 729         }
 730
 731         /**
 732          * URL to the logo
 733          */
 734         function getLogo() {
 735                 global $wgLogo;
 736                 return $wgLogo;
 737         }
 738
 739         /**
 740          * This will be called immediately after the <body> tag.  Split into
 741          * two functions to make it easier to subclass.
 742          */
 743         function beforeContent() {
 744                 return $this->doBeforeContent();
 745         }
 746
 747         function doBeforeContent() {
 748                 global $wgContLang;
 749                 wfProfileIn( __METHOD__ );
 750
 751                 $s = '';
 752                 $qb = $this->qbSetting();
 753
 754                 if( $langlinks = $this->otherLanguages() ) {
 755                         $rows = 2;
 756                         $borderhack = '';
 757                 } else {
 758                         $rows = 1;
 759                         $langlinks = false;
 760                         $borderhack = 'class="top"';
 761                 }
 762
 763                 $s .= "\n<div id='content'>\n<div id='topbar'>\n" .
 764                   "<table border='0' cellspacing='0' width='98%'>\n<tr>\n";
 765
 766                 $shove = ( $qb != 0 );
 767                 $left = ( $qb == 1 || $qb == 3 );
 768                 if( $wgContLang->isRTL() ) $left = !$left;
 769
 770                 if( !$shove ) {
 771                         $s .= "<td class='top' align='left' valign='top' rowspan='{$rows}'>\n" .
 772                           $this->logoText() . '</td>';
 773                 } elseif( $left ) {
 774                         $s .= $this->getQuickbarCompensator( $rows );
 775                 }
 776                 $l = $wgContLang->isRTL() ? 'right' : 'left';
 777                 $s .= "<td {$borderhack} align='$l' valign='top'>\n";
 778
 779                 $s .= $this->topLinks();
 780                 $s .= "<p class='subtitle'>" . $this->pageTitleLinks() . "</p>\n";
 781
 782                 $r = $wgContLang->isRTL() ? 'left' : 'right';
 783                 $s .= "</td>\n<td {$borderhack} valign='top' align='$r' nowrap='nowrap'>";
 784                 $s .= $this->nameAndLogin();
 785                 $s .= "\n<br />" . $this->searchForm() . "</td>";
 786
 787                 if ( $langlinks ) {
 788                         $s .= "</tr>\n<tr>\n<td class='top' colspan=\"2\">$langlinks</td>\n";
 789                 }
 790
 791                 if ( $shove && !$left ) { # Right
 792                         $s .= $this->getQuickbarCompensator( $rows );
 793                 }
 794                 $s .= "</tr>\n</table>\n</div>\n";
 795                 $s .= "\n<div id='article'>\n";
 796
 797                 $notice = wfGetSiteNotice();
 798                 if( $notice ) {
 799                         $s .= "\n<div id='siteNotice'>$notice</div>\n";
 800                 }
 801                 $s .= $this->pageTitle();
 802                 $s .= $this->pageSubtitle();
 803                 $s .= $this->getCategories();
 804                 wfProfileOut( __METHOD__ );
 805                 return $s;
 806         }
 807
 808
 809         function getCategoryLinks() {
 810                 global $wgOut, $wgUseCategoryBrowser;
 811                 global $wgContLang, $wgUser;
 812
 813                 if( count( $wgOut->mCategoryLinks ) == 0 ) return '';
 814
 815                 # Separator
 816                 $sep = wfMsgExt( 'catseparator', array( 'parsemag', 'escapenoentities' ) );
 817
 818                 // Use Unicode bidi embedding override characters,
 819                 // to make sure links don't smash each other up in ugly ways.
 820                 $dir = $wgContLang->isRTL() ? 'rtl' : 'ltr';
 821                 $embed = "<span dir='$dir'>";
 822                 $pop = '</span>';
 823
 824                 $allCats = $wgOut->getCategoryLinks();
 825                 $s = '';
 826                 $colon = wfMsgExt( 'colon-separator', 'escapenoentities' );
 827                 if ( !empty( $allCats['normal'] ) ) {
 828                         $t = $embed . implode( "{$pop} {$sep} {$embed}" , $allCats['normal'] ) . $pop;
 829
 830                         $msg = wfMsgExt( 'pagecategories', array( 'parsemag', 'escapenoentities' ), count( $allCats['normal'] ) );
 831                         $s .= '<div id="mw-normal-catlinks">' .
 832                                 $this->link( Title::newFromText( wfMsgForContent( 'pagecategorieslink' ) ), $msg )
 833                                 . $colon . $t . '</div>';
 834                 }
 835
 836                 # Hidden categories
 837                 if ( isset( $allCats['hidden'] ) ) {
 838                         if ( $wgUser->getBoolOption( 'showhiddencats' ) ) {
 839                                 $class ='mw-hidden-cats-user-shown';
 840                         } elseif ( $this->mTitle->getNamespace() == NS_CATEGORY ) {
 841                                 $class = 'mw-hidden-cats-ns-shown';
 842                         } else {
 843                                 $class = 'mw-hidden-cats-hidden';
 844                         }
 845                         $s .= "<div id=\"mw-hidden-catlinks\" class=\"$class\">" .
 846                                 wfMsgExt( 'hidden-categories', array( 'parsemag', 'escapenoentities' ), count( $allCats['hidden'] ) ) .
 847                                 $colon . $embed . implode( "$pop $sep $embed", $allCats['hidden'] ) . $pop .
 848                                 "</div>";
 849                 }
 850
 851                 # optional 'dmoz-like' category browser. Will be shown under the list
 852                 # of categories an article belong to
 853                 if( $wgUseCategoryBrowser ){
 854                         $s .= '<br /><hr />';
 855
 856                         # get a big array of the parents tree
 857                         $parenttree = $this->mTitle->getParentCategoryTree();
 858                         # Skin object passed by reference cause it can not be
 859                         # accessed under the method subfunction drawCategoryBrowser
 860                         $tempout = explode( "\n", Skin::drawCategoryBrowser( $parenttree, $this ) );
 861                         # Clean out bogus first entry and sort them
 862                         unset( $tempout[0] );
 863                         asort( $tempout );
 864                         # Output one per line
 865                         $s .= implode( "<br />\n", $tempout );
 866                 }
 867
 868                 return $s;
 869         }
 870
 871         /**
 872          * Render the array as a serie of links.
 873          * @param $tree Array: categories tree returned by Title::getParentCategoryTree
 874          * @param &skin Object: skin passed by reference
 875          * @return String separated by &gt;, terminate with "\n"
 876          */
 877         function drawCategoryBrowser( $tree, &$skin ){
 878                 $return = '';
 879                 foreach( $tree as $element => $parent ) {
 880                         if( empty( $parent ) ) {
 881                                 # element start a new list
 882                                 $return .= "\n";
 883                         } else {
 884                                 # grab the others elements
 885                                 $return .= Skin::drawCategoryBrowser( $parent, $skin ) . ' &gt; ';
 886                         }
 887                         # add our current element to the list
 888                         $eltitle = Title::newFromText( $element );
 889                         $return .=  $skin->link( $eltitle, $eltitle->getText() );
 890                 }
 891                 return $return;
 892         }
 893
 894         function getCategories() {
 895                 $catlinks=$this->getCategoryLinks();
 896
 897                 $classes = 'catlinks';
 898
 899                 if( strpos( $catlinks, '<div id="mw-normal-catlinks">' ) === false &&
 900                         strpos( $catlinks, '<div id="mw-hidden-catlinks" class="mw-hidden-cats-hidden">' ) !== false ) {
 901                         $classes .= ' catlinks-allhidden';
 902                 }
 903
 904                 if( !empty( $catlinks ) ){
 905                         return "<div id='catlinks' class='$classes'>{$catlinks}</div>";
 906                 }
 907         }
 908
 909         function getQuickbarCompensator( $rows = 1 ) {
 910                 return "<td width='152' rowspan='{$rows}'>&nbsp;</td>";
 911         }
 912
 913         /**
 914          * This runs a hook to allow extensions placing their stuff after content
 915          * and article metadata (e.g. categories).
 916          * Note: This function has nothing to do with afterContent().
 917          *
 918          * This hook is placed here in order to allow using the same hook for all
 919          * skins, both the SkinTemplate based ones and the older ones, which directly
 920          * use this class to get their data.
 921          *
 922          * The output of this function gets processed in SkinTemplate::outputPage() for
 923          * the SkinTemplate based skins, all other skins should directly echo it.
 924          *
 925          * Returns an empty string by default, if not changed by any hook function.
 926          */
 927         protected function afterContentHook() {
 928                 $data = '';
 929
 930                 if( wfRunHooks( 'SkinAfterContent', array( &$data ) ) ){
 931                         // adding just some spaces shouldn't toggle the output
 932                         // of the whole <div/>, so we use trim() here
 933                         if( trim( $data ) != '' ){
 934                                 // Doing this here instead of in the skins to
 935                                 // ensure that the div has the same ID in all
 936                                 // skins
 937                                 $data = "<div id='mw-data-after-content'>\n" .
 938                                         "\t$data\n" .
 939                                         "</div>\n";
 940                         }
 941                 } else {
 942                         wfDebug( "Hook SkinAfterContent changed output processing.\n" );
 943                 }
 944
 945                 return $data;
 946         }
 947
 948         /**
 949          * Generate debug data HTML for displaying at the bottom of the main content
 950          * area.
 951          * @return String HTML containing debug data, if enabled (otherwise empty).
 952          */
 953         protected function generateDebugHTML() {
 954                 global $wgShowDebug, $wgOut;
 955                 if ( $wgShowDebug ) {
 956                         $listInternals = str_replace( "\n", "</li>\n<li>", htmlspecialchars( $wgOut->mDebugtext ) );
 957                         return "\n<hr>\n<strong>Debug data:</strong><ul style=\"font-family:monospace;\"><li>" .
 958                                 $listInternals . "</li></ul>\n";
 959                 }
 960                 return '';
 961         }
 962
 963         /**
 964          * This gets called shortly before the </body> tag.
 965          * @return String HTML to be put before </body>
 966          */
 967         function afterContent() {
 968                 $printfooter = "<div class=\"printfooter\">\n" . $this->printFooter() . "</div>\n";
 969                 return $printfooter . $this->generateDebugHTML() . $this->doAfterContent();
 970         }
 971
 972         /**
 973          * This gets called shortly before the </body> tag.
 974          * @return String HTML-wrapped JS code to be put before </body>
 975          */
 976         function bottomScripts() {
 977                 global $wgJsMimeType;
 978                 $bottomScriptText = "\n\t\t<script type=\"$wgJsMimeType\">if (window.runOnloadHook) runOnloadHook();</script>\n";
 979                 wfRunHooks( 'SkinAfterBottomScripts', array( $this, &$bottomScriptText ) );
 980                 return $bottomScriptText;
 981         }
 982
 983         /** @return string Retrievied from HTML text */
 984         function printSource() {
 985                 $url = htmlspecialchars( $this->mTitle->getFullURL() );
 986                 return wfMsg( 'retrievedfrom', '<a href="'.$url.'">'.$url.'</a>' );
 987         }
 988
 989         function printFooter() {
 990                 return "<p>" .  $this->printSource() .
 991                         "</p>\n\n<p>" . $this->pageStats() . "</p>\n";
 992         }
 993
 994         /** overloaded by derived classes */
 995         function doAfterContent() { return '</div></div>'; }
 996
 997         function pageTitleLinks() {
 998                 global $wgOut, $wgUser, $wgRequest, $wgLang;
 999
1000                 $oldid = $wgRequest->getVal( 'oldid' );
1001                 $diff = $wgRequest->getVal( 'diff' );
1002                 $action = $wgRequest->getText( 'action' );
1003
1004                 $s[] = $this->printableLink();
1005                 $disclaimer = $this->disclaimerLink(); # may be empty
1006                 if( $disclaimer ) {
1007                         $s[] = $disclaimer;
1008                 }
1009                 $privacy = $this->privacyLink(); # may be empty too
1010                 if( $privacy ) {
1011                         $s[] = $privacy;
1012                 }
1013
1014                 if ( $wgOut->isArticleRelated() ) {
1015                         if ( $this->mTitle->getNamespace() == NS_FILE ) {
1016                                 $name = $this->mTitle->getDBkey();
1017                                 $image = wfFindFile( $this->mTitle );
1018                                 if( $image ) {
1019                                         $link = htmlspecialchars( $image->getURL() );
1020                                         $style = $this->getInternalLinkAttributes( $link, $name );
1021                                         $s[] = "<a href=\"{$link}\"{$style}>{$name}</a>";
1022                                 }
1023                         }
1024                 }
1025                 if ( 'history' == $action || isset( $diff ) || isset( $oldid ) ) {
1026                         $s[] .= $this->link(
1027                                         $this->mTitle,
1028                                         wfMsg( 'currentrev' ),
1029                                         array(),
1030                                         array(),
1031                                         array( 'known', 'noclasses' )
1032                         );
1033                 }
1034
1035                 if ( $wgUser->getNewtalk() ) {
1036                         # do not show "You have new messages" text when we are viewing our
1037                         # own talk page
1038                         if( !$this->mTitle->equals( $wgUser->getTalkPage() ) ) {
1039                                 $tl = $this->link(
1040                                         $wgUser->getTalkPage(),
1041                                         wfMsgHtml( 'newmessageslink' ),
1042                                         array(),
1043                                         array( 'redirect' => 'no' ),
1044                                         array( 'known', 'noclasses' )
1045                                 );
1046
1047                                 $dl = $this->link(
1048                                         $wgUser->getTalkPage(),
1049                                         wfMsgHtml( 'newmessagesdifflink' ),
1050                                         array(),
1051                                         array( 'diff' => 'cur' ),
1052                                         array( 'known', 'noclasses' )
1053                                 );
1054                                 $s[] = '<strong>'. wfMsg( 'youhavenewmessages', $tl, $dl ) . '</strong>';
1055                                 # disable caching
1056                                 $wgOut->setSquidMaxage( 0 );
1057                                 $wgOut->enableClientCache( false );
1058                         }
1059                 }
1060
1061                 $undelete = $this->getUndeleteLink();
1062                 if( !empty( $undelete ) ) {
1063                         $s[] = $undelete;
1064                 }
1065                 return $wgLang->pipeList( $s );
1066         }
1067
1068         function getUndeleteLink() {
1069                 global $wgUser, $wgContLang, $wgLang, $wgRequest;
1070
1071                 $action = $wgRequest->getVal( 'action', 'view' );
1072
1073                 if ( $wgUser->isAllowed( 'deletedhistory' ) &&
1074                         ( $this->mTitle->getArticleId() == 0 || $action == 'history' ) ) {
1075                         $n = $this->mTitle->isDeleted();
1076                         if ( $n ) {
1077                                 if ( $wgUser->isAllowed( 'undelete' ) ) {
1078                                         $msg = 'thisisdeleted';
1079                                 } else {
1080                                         $msg = 'viewdeleted';
1081                                 }
1082                                 return wfMsg(
1083                                         $msg,
1084                                         $this->link(
1085                                                 SpecialPage::getTitleFor( 'Undelete', $this->mTitle->getPrefixedDBkey() ),
1086                                                 wfMsgExt( 'restorelink', array( 'parsemag', 'escape' ), $wgLang->formatNum( $n ) ),
1087                                                 array(),
1088                                                 array(),
1089                                                 array( 'known', 'noclasses' )
1090                                         )
1091                                 );
1092                         }
1093                 }
1094                 return '';
1095         }
1096
1097         function printableLink() {
1098                 global $wgOut, $wgFeedClasses, $wgRequest, $wgLang;
1099
1100                 $s = array();
1101
1102                 if ( !$wgRequest->getBool( 'printable' ) ) {
1103                         $printurl = $wgRequest->escapeAppendQuery( 'printable=yes' );
1104                         $s[] = "<a href=\"$printurl\" rel=\"alternate\">" . wfMsg( 'printableversion' ) . '</a>';
1105                 }
1106
1107                 if( $wgOut->isSyndicated() ) {
1108                         foreach( $wgFeedClasses as $format => $class ) {
1109                                 $feedurl = $wgRequest->escapeAppendQuery( "feed=$format" );
1110                                 $s[] = "<a href=\"$feedurl\" rel=\"alternate\" type=\"application/{$format}+xml\""
1111                                                 . " class=\"feedlink\">" . wfMsgHtml( "feed-$format" ) . "</a>";
1112                         }
1113                 }
1114                 return $wgLang->pipeList( $s );
1115         }
1116
1117         function pageTitle() {
1118                 global $wgOut;
1119                 $s = '<h1 class="pagetitle">' . $wgOut->getPageTitle() . '</h1>';
1120                 return $s;
1121         }
1122
1123         function pageSubtitle() {
1124                 global $wgOut;
1125
1126                 $sub = $wgOut->getSubtitle();
1127                 if ( '' == $sub ) {
1128                         global $wgExtraSubtitle;
1129                         $sub = wfMsgExt( 'tagline', 'parsemag' ) . $wgExtraSubtitle;
1130                 }
1131                 $subpages = $this->subPageSubtitle();
1132                 $sub .= !empty( $subpages ) ? "</p><p class='subpages'>$subpages" : '';
1133                 $s = "<p class='subtitle'>{$sub}</p>\n";
1134                 return $s;
1135         }
1136
1137         function subPageSubtitle() {
1138                 $subpages = '';
1139                 if( !wfRunHooks( 'SkinSubPageSubtitle', array( &$subpages ) ) )
1140                         return $subpages;
1141
1142                 global $wgOut;
1143                 if( $wgOut->isArticle() && MWNamespace::hasSubpages( $this->mTitle->getNamespace() ) ) {
1144                         $ptext = $this->mTitle->getPrefixedText();
1145                         if( preg_match( '/\//', $ptext ) ) {
1146                                 $links = explode( '/', $ptext );
1147                                 array_pop( $links );
1148                                 $c = 0;
1149                                 $growinglink = '';
1150                                 $display = '';
1151                                 foreach( $links as $link ) {
1152                                         $growinglink .= $link;
1153                                         $display .= $link;
1154                                         $linkObj = Title::newFromText( $growinglink );
1155                                         if( is_object( $linkObj ) && $linkObj->exists() ){
1156                                                 $getlink = $this->link(
1157                                                         $linkObj,
1158                                                         htmlspecialchars( $display ),
1159                                                         array(),
1160                                                         array(),
1161                                                         array( 'known', 'noclasses' )
1162                                                 );
1163                                                 $c++;
1164                                                 if( $c > 1 ) {
1165                                                         $subpages .= wfMsgExt( 'pipe-separator', 'escapenoentities' );
1166                                                 } else  {
1167                                                         $subpages .= '&lt; ';
1168                                                 }
1169                                                 $subpages .= $getlink;
1170                                                 $display = '';
1171                                         } else {
1172                                                 $display .= '/';
1173                                         }
1174                                         $growinglink .= '/';
1175                                 }
1176                         }
1177                 }
1178                 return $subpages;
1179         }
1180
1181         /**
1182          * Returns true if the IP should be shown in the header
1183          */
1184         function showIPinHeader() {
1185                 global $wgShowIPinHeader;
1186                 return $wgShowIPinHeader && session_id() != '';
1187         }
1188
1189         function nameAndLogin() {
1190                 global $wgUser, $wgLang, $wgContLang;
1191
1192                 $logoutPage = $wgContLang->specialPage( 'Userlogout' );
1193
1194                 $ret = '';
1195                 if ( $wgUser->isAnon() ) {
1196                         if( $this->showIPinHeader() ) {
1197                                 $name = wfGetIP();
1198
1199                                 $talkLink = $this->link( $wgUser->getTalkPage(),
1200                                         $wgLang->getNsText( NS_TALK ) );
1201
1202                                 $ret .= "$name ($talkLink)";
1203                         } else {
1204                                 $ret .= wfMsg( 'notloggedin' );
1205                         }
1206
1207                         $returnTo = $this->mTitle->getPrefixedDBkey();
1208                         $query = array();
1209                         if ( $logoutPage != $returnTo ) {
1210                                 $query['returnto'] = $returnTo;
1211                         }
1212
1213                         $loginlink = $wgUser->isAllowed( 'createaccount' )
1214                                 ? 'nav-login-createaccount'
1215                                 : 'login';
1216                         $ret .= "\n<br />" . $this->link(
1217                                 SpecialPage::getTitleFor( 'Userlogin' ),
1218                                 wfMsg( $loginlink ), array(), $query
1219                         );
1220                 } else {
1221                         $returnTo = $this->mTitle->getPrefixedDBkey();
1222                         $talkLink = $this->link( $wgUser->getTalkPage(),
1223                                 $wgLang->getNsText( NS_TALK ) );
1224
1225                         $ret .= $this->link( $wgUser->getUserPage(),
1226                                 htmlspecialchars( $wgUser->getName() ) );
1227                         $ret .= " ($talkLink)<br />";
1228                         $ret .= $wgLang->pipeList( array(
1229                                 $this->link(
1230                                         SpecialPage::getTitleFor( 'Userlogout' ), wfMsg( 'logout' ),
1231                                         array(), array( 'returnto' => $returnTo )
1232                                 ),
1233                                 $this->specialLink( 'preferences' ),
1234                         ) );
1235                 }
1236                 $ret = $wgLang->pipeList( array(
1237                         $ret,
1238                         $this->link(
1239                                 Title::newFromText( wfMsgForContent( 'helppage' ) ),
1240                                 wfMsg( 'help' )
1241                         ),
1242                 ) );
1243
1244                 return $ret;
1245         }
1246
1247         function getSearchLink() {
1248                 $searchPage = SpecialPage::getTitleFor( 'Search' );
1249                 return $searchPage->getLocalURL();
1250         }
1251
1252         function escapeSearchLink() {
1253                 return htmlspecialchars( $this->getSearchLink() );
1254         }
1255
1256         function searchForm() {
1257                 global $wgRequest, $wgUseTwoButtonsSearchForm;
1258                 $search = $wgRequest->getText( 'search' );
1259
1260                 $s = '<form id="searchform'.$this->searchboxes.'" name="search" class="inline" method="post" action="'
1261                   . $this->escapeSearchLink() . "\">\n"
1262                   . '<input type="text" id="searchInput'.$this->searchboxes.'" name="search" size="19" value="'
1263                   . htmlspecialchars( substr( $search, 0, 256 ) ) . "\" />\n"
1264                   . '<input type="submit" name="go" value="' . wfMsg( 'searcharticle' ) . '" />';
1265
1266                 if( $wgUseTwoButtonsSearchForm )
1267                         $s .= '&nbsp;<input type="submit" name="fulltext" value="' . wfMsg( 'searchbutton' ) . "\" />\n";
1268                 else
1269                         $s .= ' <a href="' . $this->escapeSearchLink() . '" rel="search">' . wfMsg( 'powersearch-legend' ) . "</a>\n";
1270
1271                 $s .= '</form>';
1272
1273                 // Ensure unique id's for search boxes made after the first
1274                 $this->searchboxes = $this->searchboxes == '' ? 2 : $this->searchboxes + 1;
1275
1276                 return $s;
1277         }
1278
1279         function topLinks() {
1280                 global $wgOut;
1281
1282                 $s = array(
1283                         $this->mainPageLink(),
1284                         $this->specialLink( 'recentchanges' )
1285                 );
1286
1287                 if ( $wgOut->isArticleRelated() ) {
1288                         $s[] = $this->editThisPage();
1289                         $s[] = $this->historyLink();
1290                 }
1291                 # Many people don't like this dropdown box
1292                 #$s[] = $this->specialPagesList();
1293
1294                 if( $this->variantLinks() ) {
1295                         $s[] = $this->variantLinks();
1296                 }
1297
1298                 if( $this->extensionTabLinks() ) {
1299                         $s[] = $this->extensionTabLinks();
1300                 }
1301
1302                 // FIXME: Is using Language::pipeList impossible here? Do not quite understand the use of the newline
1303                 return implode( $s, wfMsgExt( 'pipe-separator', 'escapenoentities' ) . "\n" );
1304         }
1305
1306         /**
1307          * Compatibility for extensions adding functionality through tabs.
1308          * Eventually these old skins should be replaced with SkinTemplate-based
1309          * versions, sigh...
1310          * @return string
1311          */
1312         function extensionTabLinks() {
1313                 $tabs = array();
1314                 $out = '';
1315                 $s = array();
1316                 wfRunHooks( 'SkinTemplateTabs', array( $this, &$tabs ) );
1317                 foreach( $tabs as $tab ) {
1318                         $s[] = Xml::element( 'a',
1319                                 array( 'href' => $tab['href'] ),
1320                                 $tab['text'] );
1321                 }
1322
1323                 if( count( $s ) ) {
1324                         global $wgLang;
1325
1326                         $out = wfMsgExt( 'pipe-separator' , 'escapenoentities' );
1327                         $out .= $wgLang->pipeList( $s );
1328                 }
1329
1330                 return $out;
1331         }
1332
1333         /**
1334          * Language/charset variant links for classic-style skins
1335          * @return string
1336          */
1337         function variantLinks() {
1338                 $s = '';
1339                 /* show links to different language variants */
1340                 global $wgDisableLangConversion, $wgLang, $wgContLang;
1341                 $variants = $wgContLang->getVariants();
1342                 if( !$wgDisableLangConversion && sizeof( $variants ) > 1 ) {
1343                         foreach( $variants as $code ) {
1344                                 $varname = $wgContLang->getVariantname( $code );
1345                                 if( $varname == 'disable' )
1346                                         continue;
1347                                 $s = $wgLang->pipeList( array(
1348                                         $s,
1349                                         '<a href="' . $this->mTitle->escapeLocalUrl( 'variant=' . $code ) . '">' . htmlspecialchars( $varname ) . '</a>'
1350                                 ) );
1351                         }
1352                 }
1353                 return $s;
1354         }
1355
1356         function bottomLinks() {
1357                 global $wgOut, $wgUser, $wgUseTrackbacks;
1358                 $sep = wfMsgExt( 'pipe-separator', 'escapenoentities' ) . "\n";
1359
1360                 $s = '';
1361                 if ( $wgOut->isArticleRelated() ) {
1362                         $element[] = '<strong>' . $this->editThisPage() . '</strong>';
1363                         if ( $wgUser->isLoggedIn() ) {
1364                                 $element[] = $this->watchThisPage();
1365                         }
1366                         $element[] = $this->talkLink();
1367                         $element[] = $this->historyLink();
1368                         $element[] = $this->whatLinksHere();
1369                         $element[] = $this->watchPageLinksLink();
1370
1371                         if( $wgUseTrackbacks )
1372                                 $element[] = $this->trackbackLink();
1373
1374                         if ( $this->mTitle->getNamespace() == NS_USER
1375                             || $this->mTitle->getNamespace() == NS_USER_TALK ){
1376                                 $id = User::idFromName( $this->mTitle->getText() );
1377                                 $ip = User::isIP( $this->mTitle->getText() );
1378
1379                                 if( $id || $ip ) { # both anons and non-anons have contri list
1380                                         $element[] = $this->userContribsLink();
1381                                 }
1382                                 if( $this->showEmailUser( $id ) ) {
1383                                         $element[] = $this->emailUserLink();
1384                                 }
1385                         }
1386
1387                         $s = implode( $element, $sep );
1388
1389                         if ( $this->mTitle->getArticleId() ) {
1390                                 $s .= "\n<br />";
1391                                 if( $wgUser->isAllowed( 'delete' ) ) { $s .= $this->deleteThisPage(); }
1392                                 if( $wgUser->isAllowed( 'protect' ) ) { $s .= $sep . $this->protectThisPage(); }
1393                                 if( $wgUser->isAllowed( 'move' ) ) { $s .= $sep . $this->moveThisPage(); }
1394                         }
1395                         $s .= "<br />\n" . $this->otherLanguages();
1396                 }
1397
1398                 return $s;
1399         }
1400
1401         function pageStats() {
1402                 global $wgOut, $wgLang, $wgArticle, $wgRequest, $wgUser;
1403                 global $wgDisableCounters, $wgMaxCredits, $wgShowCreditsIfMax, $wgPageShowWatchingUsers;
1404
1405                 $oldid = $wgRequest->getVal( 'oldid' );
1406                 $diff = $wgRequest->getVal( 'diff' );
1407                 if ( ! $wgOut->isArticle() ) { return ''; }
1408                 if( !$wgArticle instanceOf Article ) { return ''; }
1409                 if ( isset( $oldid ) || isset( $diff ) ) { return ''; }
1410                 if ( 0 == $wgArticle->getID() ) { return ''; }
1411
1412                 $s = '';
1413                 if ( !$wgDisableCounters ) {
1414                         $count = $wgLang->formatNum( $wgArticle->getCount() );
1415                         if ( $count ) {
1416                                 $s = wfMsgExt( 'viewcount', array( 'parseinline' ), $count );
1417                         }
1418                 }
1419
1420                 if( $wgMaxCredits != 0 ){
1421                         $s .= ' ' . Credits::getCredits( $wgArticle, $wgMaxCredits, $wgShowCreditsIfMax );
1422                 } else {
1423                         $s .= $this->lastModified();
1424                 }
1425
1426                 if( $wgPageShowWatchingUsers && $wgUser->getOption( 'shownumberswatching' ) ) {
1427                         $dbr = wfGetDB( DB_SLAVE );
1428                         $res = $dbr->select( 'watchlist',
1429                                 array( 'COUNT(*) AS n' ),
1430                                 array( 'wl_title' => $dbr->strencode( $this->mTitle->getDBkey() ), 'wl_namespace' => $this->mTitle->getNamespace() ),
1431                                 __METHOD__
1432                         );
1433                         $x = $dbr->fetchObject( $res );
1434
1435                         $s .= ' ' . wfMsgExt( 'number_of_watching_users_pageview',
1436                                 array( 'parseinline' ), $wgLang->formatNum( $x->n )
1437                         );
1438                 }
1439
1440                 return $s . ' ' .  $this->getCopyright();
1441         }
1442
1443         function getCopyright( $type = 'detect' ) {
1444                 global $wgRightsPage, $wgRightsUrl, $wgRightsText, $wgRequest, $wgArticle;
1445
1446                 if ( $type == 'detect' ) {
1447                         $diff = $wgRequest->getVal( 'diff' );
1448                         $isCur = $wgArticle && $wgArticle->isCurrent();
1449                         if ( is_null( $diff ) && !$isCur && wfMsgForContent( 'history_copyright' ) !== '-' ) {
1450                                 $type = 'history';
1451                         } else {
1452                                 $type = 'normal';
1453                         }
1454                 }
1455
1456                 if ( $type == 'history' ) {
1457                         $msg = 'history_copyright';
1458                 } else {
1459                         $msg = 'copyright';
1460                 }
1461
1462                 $out = '';
1463                 if( $wgRightsPage ) {
1464                         $title = Title::newFromText( $wgRightsPage );
1465                         $link = $this->linkKnown( $title, $wgRightsText );
1466                 } elseif( $wgRightsUrl ) {
1467                         $link = $this->makeExternalLink( $wgRightsUrl, $wgRightsText );
1468                 } elseif( $wgRightsText ) {
1469                         $link = $wgRightsText;
1470                 } else {
1471                         # Give up now
1472                         return $out;
1473                 }
1474                 // Allow for site and per-namespace customization of copyright notice.
1475                 if( isset($wgArticle) )
1476                         wfRunHooks( 'SkinCopyrightFooter', array( $wgArticle->getTitle(), $type, &$msg, &$link ) );
1477
1478                 $out .= wfMsgForContent( $msg, $link );
1479                 return $out;
1480         }
1481
1482         function getCopyrightIcon() {
1483                 global $wgRightsUrl, $wgRightsText, $wgRightsIcon, $wgCopyrightIcon;
1484                 $out = '';
1485                 if ( isset( $wgCopyrightIcon ) && $wgCopyrightIcon ) {
1486                         $out = $wgCopyrightIcon;
1487                 } else if ( $wgRightsIcon ) {
1488                         $icon = htmlspecialchars( $wgRightsIcon );
1489                         if ( $wgRightsUrl ) {
1490                                 $url = htmlspecialchars( $wgRightsUrl );
1491                                 $out .= '<a href="'.$url.'">';
1492                         }
1493                         $text = htmlspecialchars( $wgRightsText );
1494                         $out .= "<img src=\"$icon\" alt='$text' />";
1495                         if ( $wgRightsUrl ) {
1496                                 $out .= '</a>';
1497                         }
1498                 }
1499                 return $out;
1500         }
1501
1502         function getPoweredBy() {
1503                 global $wgStylePath;
1504                 $url = htmlspecialchars( "$wgStylePath/common/images/poweredby_mediawiki_88x31.png" );
1505                 $img = '<a href="http://www.mediawiki.org/"><img src="'.$url.'" alt="Powered by MediaWiki" /></a>';
1506                 return $img;
1507         }
1508
1509         function lastModified() {
1510                 global $wgLang, $wgArticle;
1511                 if( $this->mRevisionId ) {
1512                         $timestamp = Revision::getTimestampFromId( $wgArticle->getTitle(), $this->mRevisionId );
1513                 } else {
1514                         $timestamp = $wgArticle->getTimestamp();
1515                 }
1516                 if ( $timestamp ) {
1517                         $d = $wgLang->date( $timestamp, true );
1518                         $t = $wgLang->time( $timestamp, true );
1519                         $s = ' ' . wfMsg( 'lastmodifiedat', $d, $t );
1520                 } else {
1521                         $s = '';
1522                 }
1523                 if ( wfGetLB()->getLaggedSlaveMode() ) {
1524                         $s .= ' <strong>' . wfMsg( 'laggedslavemode' ) . '</strong>';
1525                 }
1526                 return $s;
1527         }
1528
1529         function logoText( $align = '' ) {
1530                 if ( '' != $align ) {
1531                         $a = " align='{$align}'";
1532                 } else {
1533                         $a = '';
1534                 }
1535
1536                 $mp = wfMsg( 'mainpage' );
1537                 $mptitle = Title::newMainPage();
1538                 $url = ( is_object( $mptitle ) ? $mptitle->escapeLocalURL() : '' );
1539
1540                 $logourl = $this->getLogo();
1541                 $s = "<a href='{$url}'><img{$a} src='{$logourl}' alt='[{$mp}]' /></a>";
1542                 return $s;
1543         }
1544
1545         /**
1546          * show a drop-down box of special pages
1547          */
1548         function specialPagesList() {
1549                 global $wgUser, $wgContLang, $wgServer, $wgRedirectScript;
1550                 $pages = array_merge( SpecialPage::getRegularPages(), SpecialPage::getRestrictedPages() );
1551                 foreach ( $pages as $name => $page ) {
1552                         $pages[$name] = $page->getDescription();
1553                 }
1554
1555                 $go = wfMsg( 'go' );
1556                 $sp = wfMsg( 'specialpages' );
1557                 $spp = $wgContLang->specialPage( 'Specialpages' );
1558
1559                 $s = '<form id="specialpages" method="get" ' .
1560                   'action="' . htmlspecialchars( "{$wgServer}{$wgRedirectScript}" ) . "\">\n";
1561                 $s .= "<select name=\"wpDropdown\">\n";
1562                 $s .= "<option value=\"{$spp}\">{$sp}</option>\n";
1563
1564
1565                 foreach ( $pages as $name => $desc ) {
1566                         $p = $wgContLang->specialPage( $name );
1567                         $s .= "<option value=\"{$p}\">{$desc}</option>\n";
1568                 }
1569                 $s .= "</select>\n";
1570                 $s .= "<input type='submit' value=\"{$go}\" name='redirect' />\n";
1571                 $s .= "</form>\n";
1572                 return $s;
1573         }
1574
1575         function mainPageLink() {
1576                 $s = $this->link(
1577                         Title::newMainPage(),
1578                         wfMsg( 'mainpage' ),
1579                         array(),
1580                         array(),
1581                         array( 'known', 'noclasses' )
1582                 );
1583                 return $s;
1584         }
1585
1586         function copyrightLink() {
1587                 $title = Title::newFromText( wfMsgForContent( 'copyrightpage' ) );
1588                 $s = $this->linkKnown(
1589                         $title,
1590                         wfMsg( 'copyrightpagename' )
1591                 );
1592                 return $s;
1593         }
1594
1595         private function footerLink ( $desc, $page ) {
1596                 // if the link description has been set to "-" in the default language,
1597                 if ( wfMsgForContent( $desc )  == '-') {
1598                         // then it is disabled, for all languages.
1599                         return '';
1600                 } else {
1601                         // Otherwise, we display the link for the user, described in their
1602                         // language (which may or may not be the same as the default language),
1603                         // but we make the link target be the one site-wide page.
1604                         $title = Title::newFromText( wfMsgForContent( $page ) );
1605                         return $this->linkKnown(
1606                                 $title,
1607                                 wfMsgExt( $desc, array( 'parsemag', 'escapenoentities' ) )
1608                         );
1609                 }
1610         }
1611
1612         function privacyLink() {
1613                 return $this->footerLink( 'privacy', 'privacypage' );
1614         }
1615
1616         function aboutLink() {
1617                 return $this->footerLink( 'aboutsite', 'aboutpage' );
1618         }
1619
1620         function disclaimerLink() {
1621                 return $this->footerLink( 'disclaimers', 'disclaimerpage' );
1622         }
1623
1624         function editThisPage() {
1625                 global $wgOut;
1626
1627                 if ( !$wgOut->isArticleRelated() ) {
1628                         $s = wfMsg( 'protectedpage' );
1629                 } else {
1630                         if( $this->mTitle->quickUserCan( 'edit' ) && $this->mTitle->exists() ) {
1631                                 $t = wfMsg( 'editthispage' );
1632                         } elseif( $this->mTitle->quickUserCan( 'create' ) && !$this->mTitle->exists() ) {
1633                                 $t = wfMsg( 'create-this-page' );
1634                         } else {
1635                                 $t = wfMsg( 'viewsource' );
1636                         }
1637
1638                         $s = $this->link(
1639                                 $this->mTitle,
1640                                 $t,
1641                                 array(),
1642                                 $this->editUrlOptions(),
1643                                 array( 'known', 'noclasses' )
1644                         );
1645                 }
1646                 return $s;
1647         }
1648
1649         /**
1650          * Return URL options for the 'edit page' link.
1651          * This may include an 'oldid' specifier, if the current page view is such.
1652          *
1653          * @return array
1654          * @private
1655          */
1656         function editUrlOptions() {
1657                 global $wgArticle;
1658
1659                 $options = array( 'action' => 'edit' );
1660
1661                 if( $this->mRevisionId && ! $wgArticle->isCurrent() ) {
1662                         $options['oldid'] = intval( $this->mRevisionId );
1663                 }
1664
1665                 return $options;
1666         }
1667
1668         function deleteThisPage() {
1669                 global $wgUser, $wgRequest;
1670
1671                 $diff = $wgRequest->getVal( 'diff' );
1672                 if ( $this->mTitle->getArticleId() && ( !$diff ) && $wgUser->isAllowed( 'delete' ) ) {
1673                         $t = wfMsg( 'deletethispage' );
1674
1675                         $s = $this->link(
1676                                 $this->mTitle,
1677                                 $t,
1678                                 array(),
1679                                 array( 'action' => 'delete' ),
1680                                 array( 'known', 'noclasses' )
1681                         );
1682                 } else {
1683                         $s = '';
1684                 }
1685                 return $s;
1686         }
1687
1688         function protectThisPage() {
1689                 global $wgUser, $wgRequest;
1690
1691                 $diff = $wgRequest->getVal( 'diff' );
1692                 if ( $this->mTitle->getArticleId() && ( ! $diff ) && $wgUser->isAllowed('protect') ) {
1693                         if ( $this->mTitle->isProtected() ) {
1694                                 $text = wfMsg( 'unprotectthispage' );
1695                                 $query = array( 'action' => 'unprotect' );
1696                         } else {
1697                                 $text = wfMsg( 'protectthispage' );
1698                                 $query = array( 'action' => 'protect' );
1699                         }
1700
1701                         $s = $this->link(
1702                                 $this->mTitle,
1703                                 $text,
1704                                 array(),
1705                                 $query,
1706                                 array( 'known', 'noclasses' )
1707                         );
1708                 } else {
1709                         $s = '';
1710                 }
1711                 return $s;
1712         }
1713
1714         function watchThisPage() {
1715                 global $wgOut;
1716                 ++$this->mWatchLinkNum;
1717
1718                 if ( $wgOut->isArticleRelated() ) {
1719                         if ( $this->mTitle->userIsWatching() ) {
1720                                 $text = wfMsg( 'unwatchthispage' );
1721                                 $query = array( 'action' => 'unwatch' );
1722                                 $id = 'mw-unwatch-link' . $this->mWatchLinkNum;
1723                         } else {
1724                                 $text = wfMsg( 'watchthispage' );
1725                                 $query = array( 'action' => 'watch' );
1726                                 $id = 'mw-watch-link' . $this->mWatchLinkNum;
1727                         }
1728
1729                         $s = $this->link(
1730                                 $this->mTitle,
1731                                 $text,
1732                                 array( 'id' => $id ),
1733                                 $query,
1734                                 array( 'known', 'noclasses' )
1735                         );
1736                 } else {
1737                         $s = wfMsg( 'notanarticle' );
1738                 }
1739                 return $s;
1740         }
1741
1742         function moveThisPage() {
1743                 if ( $this->mTitle->quickUserCan( 'move' ) ) {
1744                         return $this->link(
1745                                 SpecialPage::getTitleFor( 'Movepage' ),
1746                                 wfMsg( 'movethispage' ),
1747                                 array(),
1748                                 array( 'target' => $this->mTitle->getPrefixedDBkey() ),
1749                                 array( 'known', 'noclasses' )
1750                         );
1751                 } else {
1752                         // no message if page is protected - would be redundant
1753                         return '';
1754                 }
1755         }
1756
1757         function historyLink() {
1758                 return $this->link(
1759                         $this->mTitle,
1760                         wfMsgHtml( 'history' ),
1761                         array( 'rel' => 'archives' ),
1762                         array( 'action' => 'history' )
1763                 );
1764         }
1765
1766         function whatLinksHere() {
1767                 return $this->link(
1768                         SpecialPage::getTitleFor( 'Whatlinkshere', $this->mTitle->getPrefixedDBkey() ),
1769                         wfMsgHtml( 'whatlinkshere' ),
1770                         array(),
1771                         array(),
1772                         array( 'known', 'noclasses' )
1773                 );
1774         }
1775
1776         function userContribsLink() {
1777                 return $this->link(
1778                         SpecialPage::getTitleFor( 'Contributions', $this->mTitle->getDBkey() ),
1779                         wfMsgHtml( 'contributions' ),
1780                         array(),
1781                         array(),
1782                         array( 'known', 'noclasses' )
1783                 );
1784         }
1785
1786         function showEmailUser( $id ) {
1787                 global $wgUser;
1788                 $targetUser = User::newFromId( $id );
1789                 return  $wgUser->canSendEmail() && # the sending user must have a confirmed email address
1790                         $targetUser->canReceiveEmail(); # the target user must have a confirmed email address and allow emails from users
1791         }
1792
1793         function emailUserLink() {
1794                 return $this->link(
1795                         SpecialPage::getTitleFor( 'Emailuser', $this->mTitle->getDBkey() ),
1796                         wfMsg( 'emailuser' ),
1797                         array(),
1798                         array(),
1799                         array( 'known', 'noclasses' )
1800                 );
1801         }
1802
1803         function watchPageLinksLink() {
1804                 global $wgOut;
1805                 if ( ! $wgOut->isArticleRelated() ) {
1806                         return '(' . wfMsg( 'notanarticle' ) . ')';
1807                 } else {
1808                         return $this->link(
1809                                 SpecialPage::getTitleFor( 'Recentchangeslinked', $this->mTitle->getPrefixedDBkey() ),
1810                                 wfMsg( 'recentchangeslinked-toolbox' ),
1811                                 array(),
1812                                 array(),
1813                                 array( 'known', 'noclasses' )
1814                         );
1815                 }
1816         }
1817
1818         function trackbackLink() {
1819                 return '<a href="' . $this->mTitle->trackbackURL() . '">'
1820                         . wfMsg( 'trackbacklink' ) . '</a>';
1821         }
1822
1823         function otherLanguages() {
1824                 global $wgOut, $wgContLang, $wgHideInterlanguageLinks;
1825
1826                 if ( $wgHideInterlanguageLinks ) {
1827                         return '';
1828                 }
1829
1830                 $a = $wgOut->getLanguageLinks();
1831                 if ( 0 == count( $a ) ) {
1832                         return '';
1833                 }
1834
1835                 $s = wfMsg( 'otherlanguages' ) . wfMsg( 'colon-separator' );
1836                 $first = true;
1837                 if( $wgContLang->isRTL() ) $s .= '<span dir="LTR">';
1838                 foreach( $a as $l ) {
1839                         if ( !$first ) {
1840                                 $s .= wfMsgExt( 'pipe-separator', 'escapenoentities' );
1841                         }
1842                         $first = false;
1843
1844                         $nt = Title::newFromText( $l );
1845                         $url = $nt->escapeFullURL();
1846                         $text = $wgContLang->getLanguageName( $nt->getInterwiki() );
1847
1848                         if ( '' == $text ) { $text = $l; }
1849                         $style = $this->getExternalLinkAttributes();
1850                         $s .= "<a href=\"{$url}\"{$style}>{$text}</a>";
1851                 }
1852                 if( $wgContLang->isRTL() ) $s .= '</span>';
1853                 return $s;
1854         }
1855
1856         function talkLink() {
1857                 if ( NS_SPECIAL == $this->mTitle->getNamespace() ) {
1858                         # No discussion links for special pages
1859                         return '';
1860                 }
1861
1862                 $linkOptions = array();
1863
1864                 if( $this->mTitle->isTalkPage() ) {
1865                         $link = $this->mTitle->getSubjectPage();
1866                         switch( $link->getNamespace() ) {
1867                                 case NS_MAIN:
1868                                         $text = wfMsg( 'articlepage' );
1869                                         break;
1870                                 case NS_USER:
1871                                         $text = wfMsg( 'userpage' );
1872                                         break;
1873                                 case NS_PROJECT:
1874                                         $text = wfMsg( 'projectpage' );
1875                                         break;
1876                                 case NS_FILE:
1877                                         $text = wfMsg( 'imagepage' );
1878                                         # Make link known if image exists, even if the desc. page doesn't.
1879                                         if( wfFindFile( $link ) )
1880                                                 $linkOptions[] = 'known';
1881                                         break;
1882                                 case NS_MEDIAWIKI:
1883                                         $text = wfMsg( 'mediawikipage' );
1884                                         break;
1885                                 case NS_TEMPLATE:
1886                                         $text = wfMsg( 'templatepage' );
1887                                         break;
1888                                 case NS_HELP:
1889                                         $text = wfMsg( 'viewhelppage' );
1890                                         break;
1891                                 case NS_CATEGORY:
1892                                         $text = wfMsg( 'categorypage' );
1893                                         break;
1894                                 default:
1895                                         $text = wfMsg( 'articlepage' );
1896                         }
1897                 } else {
1898                         $link = $this->mTitle->getTalkPage();
1899                         $text = wfMsg( 'talkpage' );
1900                 }
1901
1902                 $s = $this->link( $link, $text, array(), array(), $linkOptions );
1903
1904                 return $s;
1905         }
1906
1907         function commentLink() {
1908                 global $wgOut;
1909
1910                 if ( $this->mTitle->getNamespace() == NS_SPECIAL ) {
1911                         return '';
1912                 }
1913
1914                 # __NEWSECTIONLINK___ changes behaviour here
1915                 # If it is present, the link points to this page, otherwise
1916                 # it points to the talk page
1917                 if( $this->mTitle->isTalkPage() ) {
1918                         $title = $this->mTitle;
1919                 } elseif( $wgOut->showNewSectionLink() ) {
1920                         $title = $this->mTitle;
1921                 } else {
1922                         $title = $this->mTitle->getTalkPage();
1923                 }
1924
1925                 return $this->link(
1926                         $title,
1927                         wfMsg( 'postcomment' ),
1928                         array(),
1929                         array(
1930                                 'action' => 'edit',
1931                                 'section' => 'new'
1932                         ),
1933                         array( 'known', 'noclasses' )
1934                 );
1935         }
1936
1937         /* these are used extensively in SkinTemplate, but also some other places */
1938         static function makeMainPageUrl( $urlaction = '' ) {
1939                 $title = Title::newMainPage();
1940                 self::checkTitle( $title, '' );
1941                 return $title->getLocalURL( $urlaction );
1942         }
1943
1944         static function makeSpecialUrl( $name, $urlaction = '' ) {
1945                 $title = SpecialPage::getTitleFor( $name );
1946                 return $title->getLocalURL( $urlaction );
1947         }
1948
1949         static function makeSpecialUrlSubpage( $name, $subpage, $urlaction = '' ) {
1950                 $title = SpecialPage::getSafeTitleFor( $name, $subpage );
1951                 return $title->getLocalURL( $urlaction );
1952         }
1953
1954         static function makeI18nUrl( $name, $urlaction = '' ) {
1955                 $title = Title::newFromText( wfMsgForContent( $name ) );
1956                 self::checkTitle( $title, $name );
1957                 return $title->getLocalURL( $urlaction );
1958         }
1959
1960         static function makeUrl( $name, $urlaction = '' ) {
1961                 $title = Title::newFromText( $name );
1962                 self::checkTitle( $title, $name );
1963                 return $title->getLocalURL( $urlaction );
1964         }
1965
1966         # If url string starts with http, consider as external URL, else
1967         # internal
1968         static function makeInternalOrExternalUrl( $name ) {
1969                 if ( preg_match( '/^(?:' . wfUrlProtocols() . ')/', $name ) ) {
1970                         return $name;
1971                 } else {
1972                         return self::makeUrl( $name );
1973                 }
1974         }
1975
1976         # this can be passed the NS number as defined in Language.php
1977         static function makeNSUrl( $name, $urlaction = '', $namespace = NS_MAIN ) {
1978                 $title = Title::makeTitleSafe( $namespace, $name );
1979                 self::checkTitle( $title, $name );
1980                 return $title->getLocalURL( $urlaction );
1981         }
1982
1983         /* these return an array with the 'href' and boolean 'exists' */
1984         static function makeUrlDetails( $name, $urlaction = '' ) {
1985                 $title = Title::newFromText( $name );
1986                 self::checkTitle( $title, $name );
1987                 return array(
1988                         'href' => $title->getLocalURL( $urlaction ),
1989                         'exists' => $title->getArticleID() != 0 ? true : false
1990                 );
1991         }
1992
1993         /**
1994          * Make URL details where the article exists (or at least it's convenient to think so)
1995          */
1996         static function makeKnownUrlDetails( $name, $urlaction = '' ) {
1997                 $title = Title::newFromText( $name );
1998                 self::checkTitle( $title, $name );
1999                 return array(
2000                         'href' => $title->getLocalURL( $urlaction ),
2001                         'exists' => true
2002                 );
2003         }
2004
2005         # make sure we have some title to operate on
2006         static function checkTitle( &$title, $name ) {
2007                 if( !is_object( $title ) ) {
2008                         $title = Title::newFromText( $name );
2009                         if( !is_object( $title ) ) {
2010                                 $title = Title::newFromText( '--error: link target missing--' );
2011                         }
2012                 }
2013         }
2014
2015         /**
2016          * Build an array that represents the sidebar(s), the navigation bar among them
2017          *
2018          * @return array
2019          */
2020         function buildSidebar() {
2021                 global $parserMemc, $wgEnableSidebarCache, $wgSidebarCacheExpiry;
2022                 global $wgLang;
2023                 wfProfileIn( __METHOD__ );
2024
2025                 $key = wfMemcKey( 'sidebar', $wgLang->getCode() );
2026
2027                 if ( $wgEnableSidebarCache ) {
2028                         $cachedsidebar = $parserMemc->get( $key );
2029                         if ( $cachedsidebar ) {
2030                                 wfProfileOut( __METHOD__ );
2031                                 return $cachedsidebar;
2032                         }
2033                 }
2034
2035                 $bar = array();
2036                 $lines = explode( "\n", wfMsgForContent( 'sidebar' ) );
2037                 $heading = '';
2038                 foreach( $lines as $line ) {
2039                         if( strpos( $line, '*' ) !== 0 )
2040                                 continue;
2041                         if( strpos( $line, '**') !== 0 ) {
2042                                 $heading = trim( $line, '* ' );
2043                                 if( !array_key_exists( $heading, $bar ) ) $bar[$heading] = array();
2044                         } else {
2045                                 if( strpos( $line, '|' ) !== false ) { // sanity check
2046                                         $line = array_map( 'trim', explode( '|', trim( $line, '* ' ), 2 ) );
2047                                         $link = wfMsgForContent( $line[0] );
2048                                         if( $link == '-' )
2049                                                 continue;
2050
2051                                         $text = wfMsgExt( $line[1], 'parsemag' );
2052                                         if( wfEmptyMsg( $line[1], $text ) )
2053                                                 $text = $line[1];
2054                                         if( wfEmptyMsg( $line[0], $link ) )
2055                                                 $link = $line[0];
2056
2057                                         if ( preg_match( '/^(?:' . wfUrlProtocols() . ')/', $link ) ) {
2058                                                 $href = $link;
2059                                         } else {
2060                                                 $title = Title::newFromText( $link );
2061                                                 if ( $title ) {
2062                                                         $title = $title->fixSpecialName();
2063                                                         $href = $title->getLocalURL();
2064                                                 } else {
2065                                                         $href = 'INVALID-TITLE';
2066                                                 }
2067                                         }
2068
2069                                         $bar[$heading][] = array(
2070                                                 'text' => $text,
2071                                                 'href' => $href,
2072                                                 'id' => 'n-' . strtr( $line[1], ' ', '-' ),
2073                                                 'active' => false
2074                                         );
2075                                 } else { continue; }
2076                         }
2077                 }
2078                 wfRunHooks( 'SkinBuildSidebar', array( $this, &$bar ) );
2079                 if ( $wgEnableSidebarCache ) $parserMemc->set( $key, $bar, $wgSidebarCacheExpiry );
2080                 wfProfileOut( __METHOD__ );
2081                 return $bar;
2082         }
2083
2084         /**
2085          * Should we include common/wikiprintable.css?  Skins that have their own
2086          * print stylesheet should override this and return false.  (This is an
2087          * ugly hack to get Monobook to play nicely with
2088          * OutputPage::headElement().)
2089          *
2090          * @return bool
2091          */
2092         public function commonPrintStylesheet() {
2093                 return true;
2094         }
2095 }