includes/Skin.php

   1 <?php
   2 /**
   3  * @defgroup Skins Skins
   4  */
   5
   6 if ( ! defined( 'MEDIAWIKI' ) )
   7         die( 1 );
   8
   9 /**
  10  * The main skin class that provide methods and properties for all other skins.
  11  * This base class is also the "Standard" skin.
  12  *
  13  * See docs/skin.txt for more information.
  14  *
  15  * @ingroup Skins
  16  */
  17 class Skin extends Linker {
  18         /**#@+
  19          * @private
  20          */
  21         var $mWatchLinkNum = 0; // Appended to end of watch link id's
  22         // How many search boxes have we made?  Avoid duplicate id's.
  23         protected $searchboxes = '';
  24         /**#@-*/
  25         protected $mRevisionId; // The revision ID we're looking at, null if not applicable.
  26         protected $skinname = 'standard';
  27         // @fixme Should be protected :-\
  28         var $mTitle = null;
  29
  30         /** Constructor, call parent constructor */
  31         function Skin() { parent::__construct(); }
  32
  33         /**
  34          * Fetch the set of available skins.
  35          * @return array of strings
  36          * @static
  37          */
  38         static function getSkinNames() {
  39                 global $wgValidSkinNames;
  40                 static $skinsInitialised = false;
  41                 if ( !$skinsInitialised ) {
  42                         # Get a list of available skins
  43                         # Build using the regular expression '^(.*).php$'
  44                         # Array keys are all lower case, array value keep the case used by filename
  45                         #
  46                         wfProfileIn( __METHOD__ . '-init' );
  47                         global $wgStyleDirectory;
  48                         $skinDir = dir( $wgStyleDirectory );
  49
  50                         # while code from www.php.net
  51                         while( false !== ( $file = $skinDir->read() ) ) {
  52                                 // Skip non-PHP files, hidden files, and '.dep' includes
  53                                 $matches = array();
  54                                 if( preg_match( '/^([^.]*)\.php$/', $file, $matches ) ) {
  55                                         $aSkin = $matches[1];
  56                                         $wgValidSkinNames[strtolower($aSkin)] = $aSkin;
  57                                 }
  58                         }
  59                         $skinDir->close();
  60                         $skinsInitialised = true;
  61                         wfProfileOut( __METHOD__ . '-init' );
  62                 }
  63                 return $wgValidSkinNames;
  64         }
  65
  66         /**
  67          * Fetch the list of usable skins in regards to $wgSkipSkins.
  68          * Useful for Special:Preferences and other places where you
  69          * only want to show skins users _can_ use.
  70          * @return array of strings
  71          */
  72         public static function getUsableSkins() {
  73                 global $wgSkipSkins;
  74                 $usableSkins = self::getSkinNames();
  75                 foreach ( $wgSkipSkins as $skip ) {
  76                         unset( $usableSkins[$skip] );
  77                 }
  78                 return $usableSkins;
  79         }
  80
  81         /**
  82          * Normalize a skin preference value to a form that can be loaded.
  83          * If a skin can't be found, it will fall back to the configured
  84          * default (or the old 'Classic' skin if that's broken).
  85          * @param string $key
  86          * @return string
  87          * @static
  88          */
  89         static function normalizeKey( $key ) {
  90                 global $wgDefaultSkin;
  91                 $skinNames = Skin::getSkinNames();
  92
  93                 if( $key == '' ) {
  94                         // Don't return the default immediately;
  95                         // in a misconfiguration we need to fall back.
  96                         $key = $wgDefaultSkin;
  97                 }
  98
  99                 if( isset( $skinNames[$key] ) ) {
 100                         return $key;
 101                 }
 102
 103                 // Older versions of the software used a numeric setting
 104                 // in the user preferences.
 105                 $fallback = array(
 106                         0 => $wgDefaultSkin,
 107                         1 => 'nostalgia',
 108                         2 => 'cologneblue' );
 109
 110                 if( isset( $fallback[$key] ) ){
 111                         $key = $fallback[$key];
 112                 }
 113
 114                 if( isset( $skinNames[$key] ) ) {
 115                         return $key;
 116                 } else {
 117                         return 'monobook';
 118                 }
 119         }
 120
 121         /**
 122          * Factory method for loading a skin of a given type
 123          * @param string $key 'monobook', 'standard', etc
 124          * @return Skin
 125          * @static
 126          */
 127         static function &newFromKey( $key ) {
 128                 global $wgStyleDirectory;
 129
 130                 $key = Skin::normalizeKey( $key );
 131
 132                 $skinNames = Skin::getSkinNames();
 133                 $skinName = $skinNames[$key];
 134                 $className = 'Skin'.ucfirst($key);
 135
 136                 # Grab the skin class and initialise it.
 137                 if ( !class_exists( $className ) ) {
 138                         // Preload base classes to work around APC/PHP5 bug
 139                         $deps = "{$wgStyleDirectory}/{$skinName}.deps.php";
 140                         if( file_exists( $deps ) ) include_once( $deps );
 141                         require_once( "{$wgStyleDirectory}/{$skinName}.php" );
 142
 143                         # Check if we got if not failback to default skin
 144                         if( !class_exists( $className ) ) {
 145                                 # DO NOT die if the class isn't found. This breaks maintenance
 146                                 # scripts and can cause a user account to be unrecoverable
 147                                 # except by SQL manipulation if a previously valid skin name
 148                                 # is no longer valid.
 149                                 wfDebug( "Skin class does not exist: $className\n" );
 150                                 $className = 'SkinMonobook';
 151                                 require_once( "{$wgStyleDirectory}/MonoBook.php" );
 152                         }
 153                 }
 154                 $skin = new $className;
 155                 return $skin;
 156         }
 157
 158         /** @return string path to the skin stylesheet */
 159         function getStylesheet() {
 160                 return 'common/wikistandard.css';
 161         }
 162
 163         /** @return string skin name */
 164         public function getSkinName() {
 165                 return $this->skinname;
 166         }
 167
 168         function qbSetting() {
 169                 global $wgOut, $wgUser;
 170
 171                 if ( $wgOut->isQuickbarSuppressed() ) { return 0; }
 172                 $q = $wgUser->getOption( 'quickbar', 0 );
 173                 return $q;
 174         }
 175
 176         function initPage( OutputPage $out ) {
 177                 global $wgFavicon, $wgAppleTouchIcon;
 178
 179                 wfProfileIn( __METHOD__ );
 180
 181                 # Generally the order of the favicon and apple-touch-icon links
 182                 # should not matter, but Konqueror (3.5.9 at least) incorrectly
 183                 # uses whichever one appears later in the HTML source.  Make sure
 184                 # apple-touch-icon is specified first to avoid this.
 185                 if( false !== $wgAppleTouchIcon ) {
 186                         $out->addLink( array( 'rel' => 'apple-touch-icon', 'href' => $wgAppleTouchIcon ) );
 187                 }
 188
 189                 if( false !== $wgFavicon ) {
 190                         $out->addLink( array( 'rel' => 'shortcut icon', 'href' => $wgFavicon ) );
 191                 }
 192
 193                 # OpenSearch description link
 194                 $out->addLink( array(
 195                         'rel' => 'search',
 196                         'type' => 'application/opensearchdescription+xml',
 197                         'href' => wfScript( 'opensearch_desc' ),
 198                         'title' => wfMsgForContent( 'opensearch-desc' ),
 199                 ));
 200
 201                 $this->addMetadataLinks( $out );
 202
 203                 $this->mRevisionId = $out->mRevisionId;
 204
 205                 $this->preloadExistence();
 206
 207                 wfProfileOut( __METHOD__ );
 208         }
 209
 210         /**
 211          * Preload the existence of three commonly-requested pages in a single query
 212          */
 213         function preloadExistence() {
 214                 global $wgUser;
 215
 216                 // User/talk link
 217                 $titles = array( $wgUser->getUserPage(), $wgUser->getTalkPage() );
 218
 219                 // Other tab link
 220                 if ( $this->mTitle->getNamespace() == NS_SPECIAL ) {
 221                         // nothing
 222                 } elseif ( $this->mTitle->isTalkPage() ) {
 223                         $titles[] = $this->mTitle->getSubjectPage();
 224                 } else {
 225                         $titles[] = $this->mTitle->getTalkPage();
 226                 }
 227
 228                 $lb = new LinkBatch( $titles );
 229                 $lb->execute();
 230         }
 231
 232         function addMetadataLinks( OutputPage $out ) {
 233                 global $wgEnableDublinCoreRdf, $wgEnableCreativeCommonsRdf;
 234                 global $wgRightsPage, $wgRightsUrl;
 235
 236                 if( $out->isArticleRelated() ) {
 237                         # note: buggy CC software only reads first "meta" link
 238                         if( $wgEnableCreativeCommonsRdf ) {
 239                                 $out->addMetadataLink( array(
 240                                         'title' => 'Creative Commons',
 241                                         'type' => 'application/rdf+xml',
 242                                         'href' => $this->mTitle->getLocalURL( 'action=creativecommons' ) )
 243                                 );
 244                         }
 245                         if( $wgEnableDublinCoreRdf ) {
 246                                 $out->addMetadataLink( array(
 247                                         'title' => 'Dublin Core',
 248                                         'type' => 'application/rdf+xml',
 249                                         'href' => $this->mTitle->getLocalURL( 'action=dublincore' ) )
 250                                 );
 251                         }
 252                 }
 253                 $copyright = '';
 254                 if( $wgRightsPage ) {
 255                         $copy = Title::newFromText( $wgRightsPage );
 256                         if( $copy ) {
 257                                 $copyright = $copy->getLocalURL();
 258                         }
 259                 }
 260                 if( !$copyright && $wgRightsUrl ) {
 261                         $copyright = $wgRightsUrl;
 262                 }
 263                 if( $copyright ) {
 264                         $out->addLink( array(
 265                                 'rel' => 'copyright',
 266                                 'href' => $copyright )
 267                         );
 268                 }
 269         }
 270
 271         /**
 272          * Set some local variables
 273          */
 274         protected function setMembers(){
 275                 global $wgUser;
 276                 $this->mUser = $wgUser;
 277                 $this->userpage = $wgUser->getUserPage()->getPrefixedText();
 278                 $this->usercss = false;
 279         }
 280
 281         /**
 282          * Set the title
 283          * @param Title $t The title to use
 284          */
 285         public function setTitle( $t ) {
 286                 $this->mTitle = $t;
 287         }
 288
 289         /** Get the title */
 290         public function getTitle() {
 291                 return $this->mTitle;
 292         }
 293
 294         function outputPage( OutputPage $out ) {
 295                 global $wgDebugComments;
 296                 wfProfileIn( __METHOD__ );
 297
 298                 $this->setMembers();
 299                 $this->initPage( $out );
 300
 301                 // See self::afterContentHook() for documentation
 302                 $afterContent = $this->afterContentHook();
 303
 304                 $out->out( $out->headElement( $this ) );
 305
 306                 $out->out( "\n<body" );
 307                 $ops = $this->getBodyOptions();
 308                 foreach ( $ops as $name => $val ) {
 309                         $out->out( " $name='$val'" );
 310                 }
 311                 $out->out( ">\n" );
 312                 if ( $wgDebugComments ) {
 313                         $out->out( "<!-- Wiki debugging output:\n" .
 314                           $out->mDebugtext . "-->\n" );
 315                 }
 316
 317                 $out->out( $this->beforeContent() );
 318
 319                 $out->out( $out->mBodytext . "\n" );
 320
 321                 $out->out( $this->afterContent() );
 322
 323                 $out->out( $afterContent );
 324
 325                 $out->out( $this->bottomScripts() );
 326
 327                 $out->out( wfReportTime() );
 328
 329                 $out->out( "\n</body></html>" );
 330                 wfProfileOut( __METHOD__ );
 331         }
 332
 333         static function makeVariablesScript( $data ) {
 334                 global $wgJsMimeType;
 335
 336                 $doneFirstVar = false;
 337                 $r = array( "<script type=\"$wgJsMimeType\">/*<![CDATA[*/\n" );
 338                 foreach ( $data as $name => $value ) {
 339                         $encValue = Xml::encodeJsVar( $value );
 340                         if ( $doneFirstVar )
 341                                 $r[] = ",\n$name=$encValue";
 342                         else {
 343                                 $r[] = "var $name=$encValue";
 344                                 $doneFirstVar = true;
 345                         }
 346                 }
 347                 # No need for ; since the script is terminating
 348                 $r[] = "\n/*]]>*/</script>\n";
 349
 350                 return implode( $r );
 351         }
 352
 353         /**
 354          * Make a <script> tag containing global variables
 355          * @param $skinName string Name of the skin
 356          * The odd calling convention is for backwards compatibility
 357          * @TODO @FIXME Make this not depend on $wgTitle!
 358          */
 359         static function makeGlobalVariablesScript( $skinName ) {
 360                 if ( is_array( $skinName ) ) {
 361                         # Weird back-compat stuff.
 362                         $skinName = $skinName['skinname'];
 363                 }
 364                 global $wgScript, $wgTitle, $wgStylePath, $wgUser;
 365                 global $wgArticlePath, $wgScriptPath, $wgServer, $wgContLang, $wgLang, $wgVariant;
 366                 global $wgCanonicalNamespaceNames, $wgOut, $wgArticle;
 367                 global $wgBreakFrames, $wgRequest, $wgVariantArticlePath, $wgActionPaths;
 368                 global $wgUseAjax, $wgAjaxWatch;
 369                 global $wgVersion, $wgEnableAPI, $wgEnableWriteAPI;
 370                 global $wgRestrictionTypes, $wgLivePreview;
 371                 global $wgMWSuggestTemplate, $wgDBname, $wgEnableMWSuggest;
 372
 373                 $ns = $wgTitle->getNamespace();
 374                 $nsname = isset( $wgCanonicalNamespaceNames[ $ns ] ) ? $wgCanonicalNamespaceNames[ $ns ] : $wgTitle->getNsText();
 375                 $separatorTransTable = $wgContLang->separatorTransformTable();
 376                 $separatorTransTable = $separatorTransTable ? $separatorTransTable : array();
 377                 $compactSeparatorTransTable = array(
 378                         implode( "\t", array_keys( $separatorTransTable ) ),
 379                         implode( "\t", $separatorTransTable ),
 380                 );
 381                 $digitTransTable = $wgContLang->digitTransformTable();
 382                 $digitTransTable = $digitTransTable ? $digitTransTable : array();
 383                 $compactDigitTransTable = array(
 384                         implode( "\t", array_keys( $digitTransTable ) ),
 385                         implode( "\t", $digitTransTable ),
 386                 );
 387
 388                 $vars = array(
 389                         'skin' => $skinName,
 390                         'stylepath' => $wgStylePath,
 391                         'wgArticlePath' => $wgArticlePath,
 392                         'wgScriptPath' => $wgScriptPath,
 393                         'wgScript' => $wgScript,
 394                         'wgVariantArticlePath' => $wgVariantArticlePath,
 395                         'wgActionPaths' => (object)$wgActionPaths,
 396                         'wgServer' => $wgServer,
 397                         'wgCanonicalNamespace' => $nsname,
 398                         'wgCanonicalSpecialPageName' => SpecialPage::resolveAlias( $wgTitle->getDBkey() ),
 399                         'wgNamespaceNumber' => $wgTitle->getNamespace(),
 400                         'wgPageName' => $wgTitle->getPrefixedDBKey(),
 401                         'wgTitle' => $wgTitle->getText(),
 402                         'wgAction' => $wgRequest->getText( 'action', 'view' ),
 403                         'wgArticleId' => $wgTitle->getArticleId(),
 404                         'wgIsArticle' => $wgOut->isArticle(),
 405                         'wgUserName' => $wgUser->isAnon() ? NULL : $wgUser->getName(),
 406                         'wgUserGroups' => $wgUser->isAnon() ? NULL : $wgUser->getEffectiveGroups(),
 407                         'wgUserVariant' => $wgVariant->getCode(),
 408                         'wgUserLanguage' => $wgLang->getCode(),
 409                         'wgContentLanguage' => $wgContLang->getCode(),
 410                         'wgBreakFrames' => $wgBreakFrames,
 411                         'wgCurRevisionId' => isset( $wgArticle ) ? $wgArticle->getLatest() : 0,
 412                         'wgVersion' => $wgVersion,
 413                         'wgEnableAPI' => $wgEnableAPI,
 414                         'wgEnableWriteAPI' => $wgEnableWriteAPI,
 415                         'wgSeparatorTransformTable' => $compactSeparatorTransTable,
 416                         'wgDigitTransformTable' => $compactDigitTransTable,
 417                 );
 418                 if ( !( $wgContLang->hasVariants() ) ) {
 419                         unset( $vars['wgUserVariant'] );
 420                 }
 421
 422                 if( $wgUseAjax && $wgEnableMWSuggest && !$wgUser->getOption( 'disablesuggest', false ) ){
 423                         $vars['wgMWSuggestTemplate'] = SearchEngine::getMWSuggestTemplate();
 424                         $vars['wgDBname'] = $wgDBname;
 425                         $vars['wgSearchNamespaces'] = SearchEngine::userNamespaces( $wgUser );
 426                         $vars['wgMWSuggestMessages'] = array( wfMsg( 'search-mwsuggest-enabled' ), wfMsg( 'search-mwsuggest-disabled' ) );
 427                 }
 428
 429                 foreach( $wgRestrictionTypes as $type )
 430                         $vars['wgRestriction' . ucfirst( $type )] = $wgTitle->getRestrictions( $type );
 431
 432                 if ( $wgLivePreview && $wgUser->getOption( 'uselivepreview' ) ) {
 433                         $vars['wgLivepreviewMessageLoading'] = wfMsg( 'livepreview-loading' );
 434                         $vars['wgLivepreviewMessageReady']   = wfMsg( 'livepreview-ready' );
 435                         $vars['wgLivepreviewMessageFailed']  = wfMsg( 'livepreview-failed' );
 436                         $vars['wgLivepreviewMessageError']   = wfMsg( 'livepreview-error' );
 437                 }
 438
 439                 if ( $wgOut->isArticleRelated() && $wgUseAjax && $wgAjaxWatch && $wgUser->isLoggedIn() ) {
 440                         $msgs = (object)array();
 441                         foreach ( array( 'watch', 'unwatch', 'watching', 'unwatching' ) as $msgName ) {
 442                                 $msgs->{$msgName . 'Msg'} = wfMsg( $msgName );
 443                         }
 444                         $vars['wgAjaxWatch'] = $msgs;
 445                 }
 446
 447                 // Allow extensions to add their custom variables to the global JS variables
 448                 wfRunHooks( 'MakeGlobalVariablesScript', array( &$vars ) );
 449
 450                 return self::makeVariablesScript( $vars );
 451         }
 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          * @var $allowUserJs bool Should probably be identical to $wgAllowUserJs,
 461          *                        but is passed as a local variable for some
 462          *                        obscure reason.
 463          * @var $extraHtml string A bunch of raw HTML to jam into some arbitrary
 464          *                        place where MonoBook has historically wanted it.
 465          *                        Old-style skins formerly put it in a different
 466          *                        place, but if either of those is broken it's
 467          *                        likely to be the old-style skins.
 468          * @return string Raw HTML to output in some location in the <head> that's
 469          *                entirely arbitrary but which will probably break
 470          *                everything if you put it someplace else.
 471          */
 472         function getHeadScripts( $allowUserJs, $extraHtml = '' ) {
 473                 global $wgStylePath, $wgUser, $wgJsMimeType, $wgStyleVersion;
 474
 475                 $vars = self::makeGlobalVariablesScript( $this->getSkinName() );
 476
 477                 $r = array( "<script type=\"{$wgJsMimeType}\" src=\"{$wgStylePath}/common/wikibits.js?$wgStyleVersion\"></script>\n$extraHtml" );
 478                 global $wgUseSiteJs;
 479                 if( $wgUseSiteJs ) {
 480                         $jsCache = $wgUser->isLoggedIn() ? '&smaxage=0' : '';
 481                         $r[] = "<script type=\"$wgJsMimeType\" src=\"".
 482                                 htmlspecialchars( self::makeUrl( '-',
 483                                         "action=raw$jsCache&gen=js&useskin=" .
 484                                         urlencode( $this->getSkinName() ) ) ) .
 485                                 "\"></script>";
 486                 }
 487                 if( $allowUserJs && $wgUser->isLoggedIn() ) {
 488                         $userpage = $wgUser->getUserPage();
 489                         $userjs = htmlspecialchars( self::makeUrl(
 490                                 $userpage->getPrefixedText().'/'.$this->getSkinName().'.js',
 491                                 'action=raw&ctype='.$wgJsMimeType ) );
 492                         $r[] = '<script type="'.$wgJsMimeType.'" src="'.$userjs."\"></script>";
 493                 }
 494                 return $vars . "\t" . implode ( "\n\t", $r );
 495         }
 496
 497         /**
 498          * To make it harder for someone to slip a user a fake
 499          * user-JavaScript or user-CSS preview, a random token
 500          * is associated with the login session. If it's not
 501          * passed back with the preview request, we won't render
 502          * the code.
 503          *
 504          * @param string $action
 505          * @return bool
 506          * @private
 507          */
 508         function userCanPreview( $action ) {
 509                 global $wgRequest, $wgUser;
 510
 511                 if( $action != 'submit' )
 512                         return false;
 513                 if( !$wgRequest->wasPosted() )
 514                         return false;
 515                 if( !$this->mTitle->userCanEditCssJsSubpage() )
 516                         return false;
 517                 return $wgUser->matchEditToken(
 518                         $wgRequest->getVal( 'wpEditToken' ) );
 519         }
 520
 521         /**
 522          * generated JavaScript action=raw&gen=js
 523          * This returns MediaWiki:Common.js and MediaWiki:[Skinname].js concate-
 524          * nated together.  For some bizarre reason, it does *not* return any
 525          * custom user JS from subpages.  Huh?
 526          *
 527          * There's absolutely no reason to have separate Monobook/Common JSes.
 528          * Any JS that cares can just check the skin variable generated at the
 529          * top.  For now Monobook.js will be maintained, but it should be consi-
 530          * dered deprecated.
 531          *
 532          * @return string
 533          */
 534         public function generateUserJs() {
 535                 global $wgStylePath;
 536
 537                 wfProfileIn( __METHOD__ );
 538
 539                 $s = "/* generated javascript */\n";
 540                 $s .= "var skin = '" . Xml::escapeJsString( $this->getSkinName() ) . "';\n";
 541                 $s .= "var stylepath = '" . Xml::escapeJsString( $wgStylePath ) . "';";
 542                 $s .= "\n\n/* MediaWiki:Common.js */\n";
 543                 $commonJs = wfMsgForContent( 'common.js' );
 544                 if ( !wfEmptyMsg( 'common.js', $commonJs ) ) {
 545                         $s .= $commonJs;
 546                 }
 547
 548                 $s .= "\n\n/* MediaWiki:".ucfirst( $this->getSkinName() ).".js */\n";
 549                 // avoid inclusion of non defined user JavaScript (with custom skins only)
 550                 // by checking for default message content
 551                 $msgKey = ucfirst( $this->getSkinName() ).'.js';
 552                 $userJS = wfMsgForContent( $msgKey );
 553                 if ( !wfEmptyMsg( $msgKey, $userJS ) ) {
 554                         $s .= $userJS;
 555                 }
 556
 557                 wfProfileOut( __METHOD__ );
 558                 return $s;
 559         }
 560
 561         /**
 562          * Generate user stylesheet for action=raw&gen=css
 563          */
 564         public function generateUserStylesheet() {
 565                 wfProfileIn( __METHOD__ );
 566                 $s = "/* generated user stylesheet */\n" .
 567                         $this->reallyGenerateUserStylesheet();
 568                 wfProfileOut( __METHOD__ );
 569                 return $s;
 570         }
 571
 572         /**
 573          * Split for easier subclassing in SkinSimple, SkinStandard and SkinCologneBlue
 574          */
 575         protected function reallyGenerateUserStylesheet(){
 576                 global $wgUser;
 577                 $s = '';
 578                 if( ( $undopt = $wgUser->getOption( 'underline' ) ) < 2 ) {
 579                         $underline = $undopt ? 'underline' : 'none';
 580                         $s .= "a { text-decoration: $underline; }\n";
 581                 }
 582                 if( $wgUser->getOption( 'highlightbroken' ) ) {
 583                         $s .= "a.new, #quickbar a.new { color: #CC2200; }\n";
 584                 } else {
 585                         $s .= <<<END
 586 a.new, #quickbar a.new,
 587 a.stub, #quickbar a.stub {
 588         color: inherit;
 589 }
 590 a.new:after, #quickbar a.new:after {
 591         content: "?";
 592         color: #CC2200;
 593 }
 594 a.stub:after, #quickbar a.stub:after {
 595         content: "!";
 596         color: #772233;
 597 }
 598 END;
 599                 }
 600                 if( $wgUser->getOption( 'justify' ) ) {
 601                         $s .= "#article, #bodyContent, #mw_content { text-align: justify; }\n";
 602                 }
 603                 if( !$wgUser->getOption( 'showtoc' ) ) {
 604                         $s .= "#toc { display: none; }\n";
 605                 }
 606                 if( !$wgUser->getOption( 'editsection' ) ) {
 607                         $s .= ".editsection { display: none; }\n";
 608                 }
 609                 return $s;
 610         }
 611
 612         /**
 613          * @private
 614          */
 615         function setupUserCss( OutputPage $out ) {
 616                 global $wgRequest, $wgContLang, $wgUser;
 617                 global $wgAllowUserCss, $wgUseSiteCss, $wgSquidMaxage, $wgStylePath;
 618
 619                 wfProfileIn( __METHOD__ );
 620
 621                 $this->setupSkinUserCss( $out );
 622
 623                 $siteargs = array(
 624                         'action' => 'raw',
 625                         'maxage' => $wgSquidMaxage,
 626                 );
 627
 628                 // Add any extension CSS
 629                 foreach( $out->getExtStyle() as $tag ) {
 630                         $out->addStyle( $tag['href'] );
 631                 }
 632
 633                 // If we use the site's dynamic CSS, throw that in, too
 634                 // Per-site custom styles
 635                 if( $wgUseSiteCss ) {
 636                         global $wgHandheldStyle;
 637                         $query = wfArrayToCGI( array(
 638                                 'usemsgcache' => 'yes',
 639                                 'ctype' => 'text/css',
 640                                 'smaxage' => $wgSquidMaxage
 641                         ) + $siteargs );
 642                         # Site settings must override extension css! (bug 15025)
 643                         $out->addStyle( self::makeNSUrl( 'Common.css', $query, NS_MEDIAWIKI ) );
 644                         $out->addStyle( self::makeNSUrl( 'Print.css', $query, NS_MEDIAWIKI ), 'print' );
 645                         if( $wgHandheldStyle ) {
 646                                 $out->addStyle( self::makeNSUrl( 'Handheld.css', $query, NS_MEDIAWIKI ), 'handheld' );
 647                         }
 648                         $out->addStyle( self::makeNSUrl( $this->getSkinName() . '.css', $query, NS_MEDIAWIKI ) );
 649                 }
 650
 651                 if( $wgUser->isLoggedIn() ) {
 652                         // Ensure that logged-in users' generated CSS isn't clobbered
 653                         // by anons' publicly cacheable generated CSS.
 654                         $siteargs['smaxage'] = '0';
 655                         $siteargs['ts'] = $wgUser->mTouched;
 656                 }
 657                 // Per-user styles based on preferences
 658                 $siteargs['gen'] = 'css';
 659                 if( ( $us = $wgRequest->getVal( 'useskin', '' ) ) !== '' ) {
 660                         $siteargs['useskin'] = $us;
 661                 }
 662                 $out->addStyle( self::makeUrl( '-', wfArrayToCGI( $siteargs ) ) );
 663
 664                 // Per-user custom style pages
 665                 if( $wgAllowUserCss && $wgUser->isLoggedIn() ) {
 666                         $action = $wgRequest->getVal( 'action' );
 667                         # If we're previewing the CSS page, use it
 668                         if( $this->mTitle->isCssSubpage() && $this->userCanPreview( $action ) ) {
 669                                 $previewCss = $wgRequest->getText( 'wpTextbox1' );
 670                                 // @FIXME: properly escape the cdata!
 671                                 $this->usercss = "/*<![CDATA[*/\n" . $previewCss . "/*]]>*/";
 672                         } else {
 673                                 $out->addStyle( self::makeUrl( $this->userpage . '/' . $this->getSkinName() .'.css',
 674                                         'action=raw&ctype=text/css' ) );
 675                         }
 676                 }
 677
 678                 wfProfileOut( __METHOD__ );
 679         }
 680
 681         /**
 682          * Add skin specific stylesheets
 683          * @param $out OutputPage
 684          */
 685         function setupSkinUserCss( OutputPage $out ) {
 686                 $out->addStyle( 'common/shared.css' );
 687                 $out->addStyle( 'common/oldshared.css' );
 688                 $out->addStyle( $this->getStylesheet() );
 689                 $out->addStyle( 'common/common_rtl.css', '', '', 'rtl' );
 690         }
 691
 692         function getBodyOptions() {
 693                 global $wgUser, $wgOut, $wgRequest, $wgContLang;
 694
 695                 extract( $wgRequest->getValues( 'oldid', 'redirect', 'diff' ) );
 696
 697                 if ( 0 != $this->mTitle->getNamespace() ) {
 698                         $a = array( 'bgcolor' => '#ffffec' );
 699                 }
 700                 else $a = array( 'bgcolor' => '#FFFFFF' );
 701                 if( $wgOut->isArticle() && $wgUser->getOption( 'editondblclick' ) &&
 702                   $this->mTitle->quickUserCan( 'edit' ) ) {
 703                         $s = $this->mTitle->getFullURL( $this->editUrlOptions() );
 704                         $s = 'document.location = "' .Xml::escapeJsString( $s ) .'";';
 705                         $a += array( 'ondblclick' => $s );
 706                 }
 707                 $a['onload'] = $wgOut->getOnloadHandler();
 708                 $a['class'] =
 709                         'mediawiki' .
 710                         ' '.( $wgContLang->isRTL() ? 'rtl' : 'ltr' ).
 711                         ' '.$this->getPageClasses( $this->mTitle ) .
 712                         ' skin-'. Sanitizer::escapeClass( $this->getSkinName() );
 713                 return $a;
 714         }
 715
 716         function getPageClasses( $title ) {
 717                 $numeric = 'ns-'.$title->getNamespace();
 718                 if( $title->getNamespace() == NS_SPECIAL ) {
 719                         $type = 'ns-special';
 720                 } elseif( $title->isTalkPage() ) {
 721                         $type = 'ns-talk';
 722                 } else {
 723                         $type = 'ns-subject';
 724                 }
 725                 $name = Sanitizer::escapeClass( 'page-'.$title->getPrefixedText() );
 726                 return "$numeric $type $name";
 727         }
 728
 729         /**
 730          * URL to the logo
 731          */
 732         function getLogo() {
 733                 global $wgLogo;
 734                 return $wgLogo;
 735         }
 736
 737         /**
 738          * This will be called immediately after the <body> tag.  Split into
 739          * two functions to make it easier to subclass.
 740          */
 741         function beforeContent() {
 742                 return $this->doBeforeContent();
 743         }
 744
 745         function doBeforeContent() {
 746                 global $wgContLang;
 747                 wfProfileIn( __METHOD__ );
 748
 749                 $s = '';
 750                 $qb = $this->qbSetting();
 751
 752                 if( $langlinks = $this->otherLanguages() ) {
 753                         $rows = 2;
 754                         $borderhack = '';
 755                 } else {
 756                         $rows = 1;
 757                         $langlinks = false;
 758                         $borderhack = 'class="top"';
 759                 }
 760
 761                 $s .= "\n<div id='content'>\n<div id='topbar'>\n" .
 762                   "<table border='0' cellspacing='0' width='98%'>\n<tr>\n";
 763
 764                 $shove = ( $qb != 0 );
 765                 $left = ( $qb == 1 || $qb == 3 );
 766                 if( $wgContLang->isRTL() ) $left = !$left;
 767
 768                 if( !$shove ) {
 769                         $s .= "<td class='top' align='left' valign='top' rowspan='{$rows}'>\n" .
 770                           $this->logoText() . '</td>';
 771                 } elseif( $left ) {
 772                         $s .= $this->getQuickbarCompensator( $rows );
 773                 }
 774                 $l = $wgContLang->isRTL() ? 'right' : 'left';
 775                 $s .= "<td {$borderhack} align='$l' valign='top'>\n";
 776
 777                 $s .= $this->topLinks();
 778                 $s .= "<p class='subtitle'>" . $this->pageTitleLinks() . "</p>\n";
 779
 780                 $r = $wgContLang->isRTL() ? 'left' : 'right';
 781                 $s .= "</td>\n<td {$borderhack} valign='top' align='$r' nowrap='nowrap'>";
 782                 $s .= $this->nameAndLogin();
 783                 $s .= "\n<br />" . $this->searchForm() . "</td>";
 784
 785                 if ( $langlinks ) {
 786                         $s .= "</tr>\n<tr>\n<td class='top' colspan=\"2\">$langlinks</td>\n";
 787                 }
 788
 789                 if ( $shove && !$left ) { # Right
 790                         $s .= $this->getQuickbarCompensator( $rows );
 791                 }
 792                 $s .= "</tr>\n</table>\n</div>\n";
 793                 $s .= "\n<div id='article'>\n";
 794
 795                 $notice = wfGetSiteNotice();
 796                 if( $notice ) {
 797                         $s .= "\n<div id='siteNotice'>$notice</div>\n";
 798                 }
 799                 $s .= $this->pageTitle();
 800                 $s .= $this->pageSubtitle();
 801                 $s .= $this->getCategories();
 802                 wfProfileOut( __METHOD__ );
 803                 return $s;
 804         }
 805
 806
 807         function getCategoryLinks() {
 808                 global $wgOut, $wgUseCategoryBrowser;
 809                 global $wgContLang, $wgUser;
 810
 811                 if( count( $wgOut->mCategoryLinks ) == 0 ) return '';
 812
 813                 # Separator
 814                 $sep = wfMsgExt( 'catseparator', array( 'parsemag', 'escapenoentities' ) );
 815
 816                 // Use Unicode bidi embedding override characters,
 817                 // to make sure links don't smash each other up in ugly ways.
 818                 $dir = $wgContLang->isRTL() ? 'rtl' : 'ltr';
 819                 $embed = "<span dir='$dir'>";
 820                 $pop = '</span>';
 821
 822                 $allCats = $wgOut->getCategoryLinks();
 823                 $s = '';
 824                 $colon = wfMsgExt( 'colon-separator', 'escapenoentities' );
 825                 if ( !empty( $allCats['normal'] ) ) {
 826                         $t = $embed . implode( "{$pop} {$sep} {$embed}" , $allCats['normal'] ) . $pop;
 827
 828                         $msg = wfMsgExt( 'pagecategories', array( 'parsemag', 'escapenoentities' ), count( $allCats['normal'] ) );
 829                         $s .= '<div id="mw-normal-catlinks">' .
 830                                 $this->link( Title::newFromText( wfMsgForContent( 'pagecategorieslink' ) ), $msg )
 831                                 . $colon . $t . '</div>';
 832                 }
 833
 834                 # Hidden categories
 835                 if ( isset( $allCats['hidden'] ) ) {
 836                         if ( $wgUser->getBoolOption( 'showhiddencats' ) ) {
 837                                 $class ='mw-hidden-cats-user-shown';
 838                         } elseif ( $this->mTitle->getNamespace() == NS_CATEGORY ) {
 839                                 $class = 'mw-hidden-cats-ns-shown';
 840                         } else {
 841                                 $class = 'mw-hidden-cats-hidden';
 842                         }
 843                         $s .= "<div id=\"mw-hidden-catlinks\" class=\"$class\">" .
 844                                 wfMsgExt( 'hidden-categories', array( 'parsemag', 'escapenoentities' ), count( $allCats['hidden'] ) ) .
 845                                 $colon . $embed . implode( "$pop $sep $embed", $allCats['hidden'] ) . $pop .
 846                                 "</div>";
 847                 }
 848
 849                 # optional 'dmoz-like' category browser. Will be shown under the list
 850                 # of categories an article belong to
 851                 if( $wgUseCategoryBrowser ){
 852                         $s .= '<br /><hr />';
 853
 854                         # get a big array of the parents tree
 855                         $parenttree = $this->mTitle->getParentCategoryTree();
 856                         # Skin object passed by reference cause it can not be
 857                         # accessed under the method subfunction drawCategoryBrowser
 858                         $tempout = explode( "\n", Skin::drawCategoryBrowser( $parenttree, $this ) );
 859                         # Clean out bogus first entry and sort them
 860                         unset( $tempout[0] );
 861                         asort( $tempout );
 862                         # Output one per line
 863                         $s .= implode( "<br />\n", $tempout );
 864                 }
 865
 866                 return $s;
 867         }
 868
 869         /**
 870          * Render the array as a serie of links.
 871          * @param $tree Array: categories tree returned by Title::getParentCategoryTree
 872          * @param &skin Object: skin passed by reference
 873          * @return String separated by &gt;, terminate with "\n"
 874          */
 875         function drawCategoryBrowser( $tree, &$skin ){
 876                 $return = '';
 877                 foreach( $tree as $element => $parent ) {
 878                         if( empty( $parent ) ) {
 879                                 # element start a new list
 880                                 $return .= "\n";
 881                         } else {
 882                                 # grab the others elements
 883                                 $return .= Skin::drawCategoryBrowser( $parent, $skin ) . ' &gt; ';
 884                         }
 885                         # add our current element to the list
 886                         $eltitle = Title::newFromText( $element );
 887                         $return .=  $skin->link( $eltitle, $eltitle->getText() );
 888                 }
 889                 return $return;
 890         }
 891
 892         function getCategories() {
 893                 $catlinks=$this->getCategoryLinks();
 894
 895                 $classes = 'catlinks';
 896
 897                 if( strpos( $catlinks, '<div id="mw-normal-catlinks">' ) === false &&
 898                         strpos( $catlinks, '<div id="mw-hidden-catlinks" class="mw-hidden-cats-hidden">' ) !== false ) {
 899                         $classes .= ' catlinks-allhidden';
 900                 }
 901
 902                 if( !empty( $catlinks ) ){
 903                         return "<div id='catlinks' class='$classes'>{$catlinks}</div>";
 904                 }
 905         }
 906
 907         function getQuickbarCompensator( $rows = 1 ) {
 908                 return "<td width='152' rowspan='{$rows}'>&nbsp;</td>";
 909         }
 910
 911         /**
 912          * This runs a hook to allow extensions placing their stuff after content
 913          * and article metadata (e.g. categories).
 914          * Note: This function has nothing to do with afterContent().
 915          *
 916          * This hook is placed here in order to allow using the same hook for all
 917          * skins, both the SkinTemplate based ones and the older ones, which directly
 918          * use this class to get their data.
 919          *
 920          * The output of this function gets processed in SkinTemplate::outputPage() for
 921          * the SkinTemplate based skins, all other skins should directly echo it.
 922          *
 923          * Returns an empty string by default, if not changed by any hook function.
 924          */
 925         protected function afterContentHook() {
 926                 $data = '';
 927
 928                 if( wfRunHooks( 'SkinAfterContent', array( &$data ) ) ){
 929                         // adding just some spaces shouldn't toggle the output
 930                         // of the whole <div/>, so we use trim() here
 931                         if( trim( $data ) != '' ){
 932                                 // Doing this here instead of in the skins to
 933                                 // ensure that the div has the same ID in all
 934                                 // skins
 935                                 $data = "<div id='mw-data-after-content'>\n" .
 936                                         "\t$data\n" .
 937                                         "</div>\n";
 938                         }
 939                 } else {
 940                         wfDebug( "Hook SkinAfterContent changed output processing.\n" );
 941                 }
 942
 943                 return $data;
 944         }
 945
 946         /**
 947          * Generate debug data HTML for displaying at the bottom of the main content
 948          * area.
 949          * @return String HTML containing debug data, if enabled (otherwise empty).
 950          */
 951         protected function generateDebugHTML() {
 952                 global $wgShowDebug, $wgOut;
 953                 if ( $wgShowDebug ) {
 954                         $listInternals = str_replace( "\n", "</li>\n<li>", htmlspecialchars( $wgOut->mDebugtext ) );
 955                         return "\n<hr>\n<strong>Debug data:</strong><ul style=\"font-family:monospace;\"><li>" .
 956                                 $listInternals . "</li></ul>\n";
 957                 }
 958                 return '';
 959         }
 960
 961         /**
 962          * This gets called shortly before the </body> tag.
 963          * @return String HTML to be put before </body>
 964          */
 965         function afterContent() {
 966                 $printfooter = "<div class=\"printfooter\">\n" . $this->printFooter() . "</div>\n";
 967                 return $printfooter . $this->generateDebugHTML() . $this->doAfterContent();
 968         }
 969
 970         /**
 971          * This gets called shortly before the </body> tag.
 972          * @return String HTML-wrapped JS code to be put before </body>
 973          */
 974         function bottomScripts() {
 975                 global $wgJsMimeType;
 976                 $bottomScriptText = "\n\t\t<script type=\"$wgJsMimeType\">if (window.runOnloadHook) runOnloadHook();</script>\n";
 977                 wfRunHooks( 'SkinAfterBottomScripts', array( $this, &$bottomScriptText ) );
 978                 return $bottomScriptText;
 979         }
 980
 981         /** @return string Retrievied from HTML text */
 982         function printSource() {
 983                 $url = htmlspecialchars( $this->mTitle->getFullURL() );
 984                 return wfMsg( 'retrievedfrom', '<a href="'.$url.'">'.$url.'</a>' );
 985         }
 986
 987         function printFooter() {
 988                 return "<p>" .  $this->printSource() .
 989                         "</p>\n\n<p>" . $this->pageStats() . "</p>\n";
 990         }
 991
 992         /** overloaded by derived classes */
 993         function doAfterContent() { return '</div></div>'; }
 994
 995         function pageTitleLinks() {
 996                 global $wgOut, $wgUser, $wgRequest, $wgLang;
 997
 998                 $oldid = $wgRequest->getVal( 'oldid' );
 999                 $diff = $wgRequest->getVal( 'diff' );
1000                 $action = $wgRequest->getText( 'action' );
1001
1002                 $s[] = $this->printableLink();
1003                 $disclaimer = $this->disclaimerLink(); # may be empty
1004                 if( $disclaimer ) {
1005                         $s[] = $disclaimer;
1006                 }
1007                 $privacy = $this->privacyLink(); # may be empty too
1008                 if( $privacy ) {
1009                         $s[] = $privacy;
1010                 }
1011
1012                 if ( $wgOut->isArticleRelated() ) {
1013                         if ( $this->mTitle->getNamespace() == NS_FILE ) {
1014                                 $name = $this->mTitle->getDBkey();
1015                                 $image = wfFindFile( $this->mTitle );
1016                                 if( $image ) {
1017                                         $link = htmlspecialchars( $image->getURL() );
1018                                         $style = $this->getInternalLinkAttributes( $link, $name );
1019                                         $s[] = "<a href=\"{$link}\"{$style}>{$name}</a>";
1020                                 }
1021                         }
1022                 }
1023                 if ( 'history' == $action || isset( $diff ) || isset( $oldid ) ) {
1024                         $s[] .= $this->link(
1025                                         $this->mTitle,
1026                                         wfMsg( 'currentrev' ),
1027                                         array(),
1028                                         array(),
1029                                         array( 'known', 'noclasses' )
1030                         );
1031                 }
1032
1033                 if ( $wgUser->getNewtalk() ) {
1034                         # do not show "You have new messages" text when we are viewing our
1035                         # own talk page
1036                         if( !$this->mTitle->equals( $wgUser->getTalkPage() ) ) {
1037                                 $tl = $this->link(
1038                                         $wgUser->getTalkPage(),
1039                                         wfMsgHtml( 'newmessageslink' ),
1040                                         array(),
1041                                         array( 'redirect' => 'no' ),
1042                                         array( 'known', 'noclasses' )
1043                                 );
1044
1045                                 $dl = $this->link(
1046                                         $wgUser->getTalkPage(),
1047                                         wfMsgHtml( 'newmessagesdifflink' ),
1048                                         array(),
1049                                         array( 'diff' => 'cur' ),
1050                                         array( 'known', 'noclasses' )
1051                                 );
1052                                 $s[] = '<strong>'. wfMsg( 'youhavenewmessages', $tl, $dl ) . '</strong>';
1053                                 # disable caching
1054                                 $wgOut->setSquidMaxage( 0 );
1055                                 $wgOut->enableClientCache( false );
1056                         }
1057                 }
1058
1059                 $undelete = $this->getUndeleteLink();
1060                 if( !empty( $undelete ) ) {
1061                         $s[] = $undelete;
1062                 }
1063                 return $wgLang->pipeList( $s );
1064         }
1065
1066         function getUndeleteLink() {
1067                 global $wgUser, $wgContLang, $wgLang, $wgRequest;
1068
1069                 $action = $wgRequest->getVal( 'action', 'view' );
1070
1071                 if ( $wgUser->isAllowed( 'deletedhistory' ) &&
1072                         ( $this->mTitle->getArticleId() == 0 || $action == 'history' ) ) {
1073                         $n = $this->mTitle->isDeleted();
1074                         if ( $n ) {
1075                                 if ( $wgUser->isAllowed( 'undelete' ) ) {
1076                                         $msg = 'thisisdeleted';
1077                                 } else {
1078                                         $msg = 'viewdeleted';
1079                                 }
1080                                 return wfMsg(
1081                                         $msg,
1082                                         $this->link(
1083                                                 SpecialPage::getTitleFor( 'Undelete', $this->mTitle->getPrefixedDBkey() ),
1084                                                 wfMsgExt( 'restorelink', array( 'parsemag', 'escape' ), $wgLang->formatNum( $n ) ),
1085                                                 array(),
1086                                                 array(),
1087                                                 array( 'known', 'noclasses' )
1088                                         )
1089                                 );
1090                         }
1091                 }
1092                 return '';
1093         }
1094
1095         function printableLink() {
1096                 global $wgOut, $wgFeedClasses, $wgRequest, $wgLang;
1097
1098                 $s = array();
1099
1100                 if ( !$wgRequest->getBool( 'printable' ) ) {
1101                         $printurl = $wgRequest->escapeAppendQuery( 'printable=yes' );
1102                         $s[] = "<a href=\"$printurl\" rel=\"alternate\">" . wfMsg( 'printableversion' ) . '</a>';
1103                 }
1104
1105                 if( $wgOut->isSyndicated() ) {
1106                         foreach( $wgFeedClasses as $format => $class ) {
1107                                 $feedurl = $wgRequest->escapeAppendQuery( "feed=$format" );
1108                                 $s[] = "<a href=\"$feedurl\" rel=\"alternate\" type=\"application/{$format}+xml\""
1109                                                 . " class=\"feedlink\">" . wfMsgHtml( "feed-$format" ) . "</a>";
1110                         }
1111                 }
1112                 return $wgLang->pipeList( $s );
1113         }
1114
1115         function pageTitle() {
1116                 global $wgOut;
1117                 $s = '<h1 class="pagetitle">' . $wgOut->getPageTitle() . '</h1>';
1118                 return $s;
1119         }
1120
1121         function pageSubtitle() {
1122                 global $wgOut;
1123
1124                 $sub = $wgOut->getSubtitle();
1125                 if ( '' == $sub ) {
1126                         global $wgExtraSubtitle;
1127                         $sub = wfMsgExt( 'tagline', 'parsemag' ) . $wgExtraSubtitle;
1128                 }
1129                 $subpages = $this->subPageSubtitle();
1130                 $sub .= !empty( $subpages ) ? "</p><p class='subpages'>$subpages" : '';
1131                 $s = "<p class='subtitle'>{$sub}</p>\n";
1132                 return $s;
1133         }
1134
1135         function subPageSubtitle() {
1136                 $subpages = '';
1137                 if( !wfRunHooks( 'SkinSubPageSubtitle', array( &$subpages ) ) )
1138                         return $subpages;
1139
1140                 global $wgOut;
1141                 if( $wgOut->isArticle() && MWNamespace::hasSubpages( $this->mTitle->getNamespace() ) ) {
1142                         $ptext = $this->mTitle->getPrefixedText();
1143                         if( preg_match( '/\//', $ptext ) ) {
1144                                 $links = explode( '/', $ptext );
1145                                 array_pop( $links );
1146                                 $c = 0;
1147                                 $growinglink = '';
1148                                 $display = '';
1149                                 foreach( $links as $link ) {
1150                                         $growinglink .= $link;
1151                                         $display .= $link;
1152                                         $linkObj = Title::newFromText( $growinglink );
1153                                         if( is_object( $linkObj ) && $linkObj->exists() ){
1154                                                 $getlink = $this->link(
1155                                                         $linkObj,
1156                                                         htmlspecialchars( $display ),
1157                                                         array(),
1158                                                         array(),
1159                                                         array( 'known', 'noclasses' )
1160                                                 );
1161                                                 $c++;
1162                                                 if( $c > 1 ) {
1163                                                         $subpages .= wfMsgExt( 'pipe-separator', 'escapenoentities' );
1164                                                 } else  {
1165                                                         $subpages .= '&lt; ';
1166                                                 }
1167                                                 $subpages .= $getlink;
1168                                                 $display = '';
1169                                         } else {
1170                                                 $display .= '/';
1171                                         }
1172                                         $growinglink .= '/';
1173                                 }
1174                         }
1175                 }
1176                 return $subpages;
1177         }
1178
1179         /**
1180          * Returns true if the IP should be shown in the header
1181          */
1182         function showIPinHeader() {
1183                 global $wgShowIPinHeader;
1184                 return $wgShowIPinHeader && session_id() != '';
1185         }
1186
1187         function nameAndLogin() {
1188                 global $wgUser, $wgLang, $wgContLang;
1189
1190                 $logoutPage = $wgContLang->specialPage( 'Userlogout' );
1191
1192                 $ret = '';
1193                 if ( $wgUser->isAnon() ) {
1194                         if( $this->showIPinHeader() ) {
1195                                 $name = wfGetIP();
1196
1197                                 $talkLink = $this->link( $wgUser->getTalkPage(),
1198                                         $wgLang->getNsText( NS_TALK ) );
1199
1200                                 $ret .= "$name ($talkLink)";
1201                         } else {
1202                                 $ret .= wfMsg( 'notloggedin' );
1203                         }
1204
1205                         $returnTo = $this->mTitle->getPrefixedDBkey();
1206                         $query = array();
1207                         if ( $logoutPage != $returnTo ) {
1208                                 $query['returnto'] = $returnTo;
1209                         }
1210
1211                         $loginlink = $wgUser->isAllowed( 'createaccount' )
1212                                 ? 'nav-login-createaccount'
1213                                 : 'login';
1214                         $ret .= "\n<br />" . $this->link(
1215                                 SpecialPage::getTitleFor( 'Userlogin' ),
1216                                 wfMsg( $loginlink ), array(), $query
1217                         );
1218                 } else {
1219                         $returnTo = $this->mTitle->getPrefixedDBkey();
1220                         $talkLink = $this->link( $wgUser->getTalkPage(),
1221                                 $wgLang->getNsText( NS_TALK ) );
1222
1223                         $ret .= $this->link( $wgUser->getUserPage(),
1224                                 htmlspecialchars( $wgUser->getName() ) );
1225                         $ret .= " ($talkLink)<br />";
1226                         $ret .= $wgLang->pipeList( array(
1227                                 $this->link(
1228                                         SpecialPage::getTitleFor( 'Userlogout' ), wfMsg( 'logout' ),
1229                                         array(), array( 'returnto' => $returnTo )
1230                                 ),
1231                                 $this->specialLink( 'preferences' ),
1232                         ) );
1233                 }
1234                 $ret = $wgLang->pipeList( array(
1235                         $ret,
1236                         $this->link(
1237                                 Title::newFromText( wfMsgForContent( 'helppage' ) ),
1238                                 wfMsg( 'help' )
1239                         ),
1240                 ) );
1241
1242                 return $ret;
1243         }
1244
1245         function getSearchLink() {
1246                 $searchPage = SpecialPage::getTitleFor( 'Search' );
1247                 return $searchPage->getLocalURL();
1248         }
1249
1250         function escapeSearchLink() {
1251                 return htmlspecialchars( $this->getSearchLink() );
1252         }
1253
1254         function searchForm() {
1255                 global $wgRequest, $wgUseTwoButtonsSearchForm;
1256                 $search = $wgRequest->getText( 'search' );
1257
1258                 $s = '<form id="searchform'.$this->searchboxes.'" name="search" class="inline" method="post" action="'
1259                   . $this->escapeSearchLink() . "\">\n"
1260                   . '<input type="text" id="searchInput'.$this->searchboxes.'" name="search" size="19" value="'
1261                   . htmlspecialchars( substr( $search, 0, 256 ) ) . "\" />\n"
1262                   . '<input type="submit" name="go" value="' . wfMsg( 'searcharticle' ) . '" />';
1263
1264                 if( $wgUseTwoButtonsSearchForm )
1265                         $s .= '&nbsp;<input type="submit" name="fulltext" value="' . wfMsg( 'searchbutton' ) . "\" />\n";
1266                 else
1267                         $s .= ' <a href="' . $this->escapeSearchLink() . '" rel="search">' . wfMsg( 'powersearch-legend' ) . "</a>\n";
1268
1269                 $s .= '</form>';
1270
1271                 // Ensure unique id's for search boxes made after the first
1272                 $this->searchboxes = $this->searchboxes == '' ? 2 : $this->searchboxes + 1;
1273
1274                 return $s;
1275         }
1276
1277         function topLinks() {
1278                 global $wgOut;
1279
1280                 $s = array(
1281                         $this->mainPageLink(),
1282                         $this->specialLink( 'recentchanges' )
1283                 );
1284
1285                 if ( $wgOut->isArticleRelated() ) {
1286                         $s[] = $this->editThisPage();
1287                         $s[] = $this->historyLink();
1288                 }
1289                 # Many people don't like this dropdown box
1290                 #$s[] = $this->specialPagesList();
1291
1292                 if( $this->variantLinks() ) {
1293                         $s[] = $this->variantLinks();
1294                 }
1295
1296                 if( $this->extensionTabLinks() ) {
1297                         $s[] = $this->extensionTabLinks();
1298                 }
1299
1300                 // FIXME: Is using Language::pipeList impossible here? Do not quite understand the use of the newline
1301                 return implode( $s, wfMsgExt( 'pipe-separator', 'escapenoentities' ) . "\n" );
1302         }
1303
1304         /**
1305          * Compatibility for extensions adding functionality through tabs.
1306          * Eventually these old skins should be replaced with SkinTemplate-based
1307          * versions, sigh...
1308          * @return string
1309          */
1310         function extensionTabLinks() {
1311                 $tabs = array();
1312                 $out = '';
1313                 $s = array();
1314                 wfRunHooks( 'SkinTemplateTabs', array( $this, &$tabs ) );
1315                 foreach( $tabs as $tab ) {
1316                         $s[] = Xml::element( 'a',
1317                                 array( 'href' => $tab['href'] ),
1318                                 $tab['text'] );
1319                 }
1320
1321                 if( count( $s ) ) {
1322                         global $wgLang;
1323
1324                         $out = wfMsgExt( 'pipe-separator' , 'escapenoentities' );
1325                         $out .= $wgLang->pipeList( $s );
1326                 }
1327
1328                 return $out;
1329         }
1330
1331         /**
1332          * Language/charset variant links for classic-style skins
1333          * @return string
1334          */
1335         function variantLinks() {
1336                 $s = '';
1337                 /* show links to different language variants */
1338                 global $wgDisableLangConversion, $wgLang, $wgContLang;
1339                 $variants = $wgContLang->getVariants();
1340                 if( !$wgDisableLangConversion && sizeof( $variants ) > 1 ) {
1341                         foreach( $variants as $code ) {
1342                                 $varname = $wgContLang->getVariantname( $code );
1343                                 if( $varname == 'disable' )
1344                                         continue;
1345                                 $s = $wgLang->pipeList( array(
1346                                         $s,
1347                                         '<a href="' . $this->mTitle->escapeLocalUrl( 'variant=' . $code ) . '">' . htmlspecialchars( $varname ) . '</a>'
1348                                 ) );
1349                         }
1350                 }
1351                 return $s;
1352         }
1353
1354         function bottomLinks() {
1355                 global $wgOut, $wgUser, $wgUseTrackbacks;
1356                 $sep = wfMsgExt( 'pipe-separator', 'escapenoentities' ) . "\n";
1357
1358                 $s = '';
1359                 if ( $wgOut->isArticleRelated() ) {
1360                         $element[] = '<strong>' . $this->editThisPage() . '</strong>';
1361                         if ( $wgUser->isLoggedIn() ) {
1362                                 $element[] = $this->watchThisPage();
1363                         }
1364                         $element[] = $this->talkLink();
1365                         $element[] = $this->historyLink();
1366                         $element[] = $this->whatLinksHere();
1367                         $element[] = $this->watchPageLinksLink();
1368
1369                         if( $wgUseTrackbacks )
1370                                 $element[] = $this->trackbackLink();
1371
1372                         if ( $this->mTitle->getNamespace() == NS_USER
1373                             || $this->mTitle->getNamespace() == NS_USER_TALK ){
1374                                 $id = User::idFromName( $this->mTitle->getText() );
1375                                 $ip = User::isIP( $this->mTitle->getText() );
1376
1377                                 if( $id || $ip ) { # both anons and non-anons have contri list
1378                                         $element[] = $this->userContribsLink();
1379                                 }
1380                                 if( $this->showEmailUser( $id ) ) {
1381                                         $element[] = $this->emailUserLink();
1382                                 }
1383                         }
1384
1385                         $s = implode( $element, $sep );
1386
1387                         if ( $this->mTitle->getArticleId() ) {
1388                                 $s .= "\n<br />";
1389                                 if( $wgUser->isAllowed( 'delete' ) ) { $s .= $this->deleteThisPage(); }
1390                                 if( $wgUser->isAllowed( 'protect' ) ) { $s .= $sep . $this->protectThisPage(); }
1391                                 if( $wgUser->isAllowed( 'move' ) ) { $s .= $sep . $this->moveThisPage(); }
1392                         }
1393                         $s .= "<br />\n" . $this->otherLanguages();
1394                 }
1395
1396                 return $s;
1397         }
1398
1399         function pageStats() {
1400                 global $wgOut, $wgLang, $wgArticle, $wgRequest, $wgUser;
1401                 global $wgDisableCounters, $wgMaxCredits, $wgShowCreditsIfMax, $wgPageShowWatchingUsers;
1402
1403                 $oldid = $wgRequest->getVal( 'oldid' );
1404                 $diff = $wgRequest->getVal( 'diff' );
1405                 if ( ! $wgOut->isArticle() ) { return ''; }
1406                 if( !$wgArticle instanceOf Article ) { return ''; }
1407                 if ( isset( $oldid ) || isset( $diff ) ) { return ''; }
1408                 if ( 0 == $wgArticle->getID() ) { return ''; }
1409
1410                 $s = '';
1411                 if ( !$wgDisableCounters ) {
1412                         $count = $wgLang->formatNum( $wgArticle->getCount() );
1413                         if ( $count ) {
1414                                 $s = wfMsgExt( 'viewcount', array( 'parseinline' ), $count );
1415                         }
1416                 }
1417
1418                 if( $wgMaxCredits != 0 ){
1419                         $s .= ' ' . Credits::getCredits( $wgArticle, $wgMaxCredits, $wgShowCreditsIfMax );
1420                 } else {
1421                         $s .= $this->lastModified();
1422                 }
1423
1424                 if( $wgPageShowWatchingUsers && $wgUser->getOption( 'shownumberswatching' ) ) {
1425                         $dbr = wfGetDB( DB_SLAVE );
1426                         $res = $dbr->select( 'watchlist',
1427                                 array( 'COUNT(*) AS n' ),
1428                                 array( 'wl_title' => $dbr->strencode( $this->mTitle->getDBkey() ), 'wl_namespace' => $this->mTitle->getNamespace() ),
1429                                 __METHOD__
1430                         );
1431                         $x = $dbr->fetchObject( $res );
1432
1433                         $s .= ' ' . wfMsgExt( 'number_of_watching_users_pageview',
1434                                 array( 'parseinline' ), $wgLang->formatNum( $x->n )
1435                         );
1436                 }
1437
1438                 return $s . ' ' .  $this->getCopyright();
1439         }
1440
1441         function getCopyright( $type = 'detect' ) {
1442                 global $wgRightsPage, $wgRightsUrl, $wgRightsText, $wgRequest, $wgArticle;
1443
1444                 if ( $type == 'detect' ) {
1445                         $diff = $wgRequest->getVal( 'diff' );
1446                         $isCur = $wgArticle && $wgArticle->isCurrent();
1447                         if ( is_null( $diff ) && !$isCur && wfMsgForContent( 'history_copyright' ) !== '-' ) {
1448                                 $type = 'history';
1449                         } else {
1450                                 $type = 'normal';
1451                         }
1452                 }
1453
1454                 if ( $type == 'history' ) {
1455                         $msg = 'history_copyright';
1456                 } else {
1457                         $msg = 'copyright';
1458                 }
1459
1460                 $out = '';
1461                 if( $wgRightsPage ) {
1462                         $title = Title::newFromText( $wgRightsPage );
1463                         $link = $this->linkKnown( $title, $wgRightsText );
1464                 } elseif( $wgRightsUrl ) {
1465                         $link = $this->makeExternalLink( $wgRightsUrl, $wgRightsText );
1466                 } elseif( $wgRightsText ) {
1467                         $link = $wgRightsText;
1468                 } else {
1469                         # Give up now
1470                         return $out;
1471                 }
1472                 // Allow for site and per-namespace customization of copyright notice.
1473                 if( isset($wgArticle) )
1474                         wfRunHooks( 'SkinCopyrightFooter', array( $wgArticle->getTitle(), $type, &$msg, &$link ) );
1475
1476                 $out .= wfMsgForContent( $msg, $link );
1477                 return $out;
1478         }
1479
1480         function getCopyrightIcon() {
1481                 global $wgRightsUrl, $wgRightsText, $wgRightsIcon, $wgCopyrightIcon;
1482                 $out = '';
1483                 if ( isset( $wgCopyrightIcon ) && $wgCopyrightIcon ) {
1484                         $out = $wgCopyrightIcon;
1485                 } else if ( $wgRightsIcon ) {
1486                         $icon = htmlspecialchars( $wgRightsIcon );
1487                         if ( $wgRightsUrl ) {
1488                                 $url = htmlspecialchars( $wgRightsUrl );
1489                                 $out .= '<a href="'.$url.'">';
1490                         }
1491                         $text = htmlspecialchars( $wgRightsText );
1492                         $out .= "<img src=\"$icon\" alt='$text' />";
1493                         if ( $wgRightsUrl ) {
1494                                 $out .= '</a>';
1495                         }
1496                 }
1497                 return $out;
1498         }
1499
1500         function getPoweredBy() {
1501                 global $wgStylePath;
1502                 $url = htmlspecialchars( "$wgStylePath/common/images/poweredby_mediawiki_88x31.png" );
1503                 $img = '<a href="http://www.mediawiki.org/"><img src="'.$url.'" alt="Powered by MediaWiki" /></a>';
1504                 return $img;
1505         }
1506
1507         function lastModified() {
1508                 global $wgLang, $wgArticle;
1509                 if( $this->mRevisionId ) {
1510                         $timestamp = Revision::getTimestampFromId( $wgArticle->getTitle(), $this->mRevisionId );
1511                 } else {
1512                         $timestamp = $wgArticle->getTimestamp();
1513                 }
1514                 if ( $timestamp ) {
1515                         $d = $wgLang->date( $timestamp, true );
1516                         $t = $wgLang->time( $timestamp, true );
1517                         $s = ' ' . wfMsg( 'lastmodifiedat', $d, $t );
1518                 } else {
1519                         $s = '';
1520                 }
1521                 if ( wfGetLB()->getLaggedSlaveMode() ) {
1522                         $s .= ' <strong>' . wfMsg( 'laggedslavemode' ) . '</strong>';
1523                 }
1524                 return $s;
1525         }
1526
1527         function logoText( $align = '' ) {
1528                 if ( '' != $align ) {
1529                         $a = " align='{$align}'";
1530                 } else {
1531                         $a = '';
1532                 }
1533
1534                 $mp = wfMsg( 'mainpage' );
1535                 $mptitle = Title::newMainPage();
1536                 $url = ( is_object( $mptitle ) ? $mptitle->escapeLocalURL() : '' );
1537
1538                 $logourl = $this->getLogo();
1539                 $s = "<a href='{$url}'><img{$a} src='{$logourl}' alt='[{$mp}]' /></a>";
1540                 return $s;
1541         }
1542
1543         /**
1544          * show a drop-down box of special pages
1545          */
1546         function specialPagesList() {
1547                 global $wgUser, $wgContLang, $wgServer, $wgRedirectScript;
1548                 $pages = array_merge( SpecialPage::getRegularPages(), SpecialPage::getRestrictedPages() );
1549                 foreach ( $pages as $name => $page ) {
1550                         $pages[$name] = $page->getDescription();
1551                 }
1552
1553                 $go = wfMsg( 'go' );
1554                 $sp = wfMsg( 'specialpages' );
1555                 $spp = $wgContLang->specialPage( 'Specialpages' );
1556
1557                 $s = '<form id="specialpages" method="get" ' .
1558                   'action="' . htmlspecialchars( "{$wgServer}{$wgRedirectScript}" ) . "\">\n";
1559                 $s .= "<select name=\"wpDropdown\">\n";
1560                 $s .= "<option value=\"{$spp}\">{$sp}</option>\n";
1561
1562
1563                 foreach ( $pages as $name => $desc ) {
1564                         $p = $wgContLang->specialPage( $name );
1565                         $s .= "<option value=\"{$p}\">{$desc}</option>\n";
1566                 }
1567                 $s .= "</select>\n";
1568                 $s .= "<input type='submit' value=\"{$go}\" name='redirect' />\n";
1569                 $s .= "</form>\n";
1570                 return $s;
1571         }
1572
1573         function mainPageLink() {
1574                 $s = $this->link(
1575                         Title::newMainPage(),
1576                         wfMsg( 'mainpage' ),
1577                         array(),
1578                         array(),
1579                         array( 'known', 'noclasses' )
1580                 );
1581                 return $s;
1582         }
1583
1584         function copyrightLink() {
1585                 $title = Title::newFromText( wfMsgForContent( 'copyrightpage' ) );
1586                 $s = $this->linkKnown(
1587                         $title,
1588                         wfMsg( 'copyrightpagename' )
1589                 );
1590                 return $s;
1591         }
1592
1593         private function footerLink ( $desc, $page ) {
1594                 // if the link description has been set to "-" in the default language,
1595                 if ( wfMsgForContent( $desc )  == '-') {
1596                         // then it is disabled, for all languages.
1597                         return '';
1598                 } else {
1599                         // Otherwise, we display the link for the user, described in their
1600                         // language (which may or may not be the same as the default language),
1601                         // but we make the link target be the one site-wide page.
1602                         $title = Title::newFromText( wfMsgForContent( $page ) );
1603                         return $this->linkKnown(
1604                                 $title,
1605                                 wfMsgExt( $desc, array( 'parsemag', 'escapenoentities' ) )
1606                         );
1607                 }
1608         }
1609
1610         function privacyLink() {
1611                 return $this->footerLink( 'privacy', 'privacypage' );
1612         }
1613
1614         function aboutLink() {
1615                 return $this->footerLink( 'aboutsite', 'aboutpage' );
1616         }
1617
1618         function disclaimerLink() {
1619                 return $this->footerLink( 'disclaimers', 'disclaimerpage' );
1620         }
1621
1622         function editThisPage() {
1623                 global $wgOut;
1624
1625                 if ( !$wgOut->isArticleRelated() ) {
1626                         $s = wfMsg( 'protectedpage' );
1627                 } else {
1628                         if( $this->mTitle->quickUserCan( 'edit' ) && $this->mTitle->exists() ) {
1629                                 $t = wfMsg( 'editthispage' );
1630                         } elseif( $this->mTitle->quickUserCan( 'create' ) && !$this->mTitle->exists() ) {
1631                                 $t = wfMsg( 'create-this-page' );
1632                         } else {
1633                                 $t = wfMsg( 'viewsource' );
1634                         }
1635
1636                         $s = $this->link(
1637                                 $this->mTitle,
1638                                 $t,
1639                                 array(),
1640                                 $this->editUrlOptions(),
1641                                 array( 'known', 'noclasses' )
1642                         );
1643                 }
1644                 return $s;
1645         }
1646
1647         /**
1648          * Return URL options for the 'edit page' link.
1649          * This may include an 'oldid' specifier, if the current page view is such.
1650          *
1651          * @return array
1652          * @private
1653          */
1654         function editUrlOptions() {
1655                 global $wgArticle;
1656
1657                 $options = array( 'action' => 'edit' );
1658
1659                 if( $this->mRevisionId && ! $wgArticle->isCurrent() ) {
1660                         $options['oldid'] = intval( $this->mRevisionId );
1661                 }
1662
1663                 return $options;
1664         }
1665
1666         function deleteThisPage() {
1667                 global $wgUser, $wgRequest;
1668
1669                 $diff = $wgRequest->getVal( 'diff' );
1670                 if ( $this->mTitle->getArticleId() && ( !$diff ) && $wgUser->isAllowed( 'delete' ) ) {
1671                         $t = wfMsg( 'deletethispage' );
1672
1673                         $s = $this->link(
1674                                 $this->mTitle,
1675                                 $t,
1676                                 array(),
1677                                 array( 'action' => 'delete' ),
1678                                 array( 'known', 'noclasses' )
1679                         );
1680                 } else {
1681                         $s = '';
1682                 }
1683                 return $s;
1684         }
1685
1686         function protectThisPage() {
1687                 global $wgUser, $wgRequest;
1688
1689                 $diff = $wgRequest->getVal( 'diff' );
1690                 if ( $this->mTitle->getArticleId() && ( ! $diff ) && $wgUser->isAllowed('protect') ) {
1691                         if ( $this->mTitle->isProtected() ) {
1692                                 $text = wfMsg( 'unprotectthispage' );
1693                                 $query = array( 'action' => 'unprotect' );
1694                         } else {
1695                                 $text = wfMsg( 'protectthispage' );
1696                                 $query = array( 'action' => 'protect' );
1697                         }
1698
1699                         $s = $this->link(
1700                                 $this->mTitle,
1701                                 $text,
1702                                 array(),
1703                                 $query,
1704                                 array( 'known', 'noclasses' )
1705                         );
1706                 } else {
1707                         $s = '';
1708                 }
1709                 return $s;
1710         }
1711
1712         function watchThisPage() {
1713                 global $wgOut;
1714                 ++$this->mWatchLinkNum;
1715
1716                 if ( $wgOut->isArticleRelated() ) {
1717                         if ( $this->mTitle->userIsWatching() ) {
1718                                 $text = wfMsg( 'unwatchthispage' );
1719                                 $query = array( 'action' => 'unwatch' );
1720                                 $id = 'mw-unwatch-link' . $this->mWatchLinkNum;
1721                         } else {
1722                                 $text = wfMsg( 'watchthispage' );
1723                                 $query = array( 'action' => 'watch' );
1724                                 $id = 'mw-watch-link' . $this->mWatchLinkNum;
1725                         }
1726
1727                         $s = $this->link(
1728                                 $this->mTitle,
1729                                 $text,
1730                                 array( 'id' => $id ),
1731                                 $query,
1732                                 array( 'known', 'noclasses' )
1733                         );
1734                 } else {
1735                         $s = wfMsg( 'notanarticle' );
1736                 }
1737                 return $s;
1738         }
1739
1740         function moveThisPage() {
1741                 if ( $this->mTitle->quickUserCan( 'move' ) ) {
1742                         return $this->link(
1743                                 SpecialPage::getTitleFor( 'Movepage' ),
1744                                 wfMsg( 'movethispage' ),
1745                                 array(),
1746                                 array( 'target' => $this->mTitle->getPrefixedURL() ),
1747                                 array( 'known', 'noclasses' )
1748                         );
1749                 } else {
1750                         // no message if page is protected - would be redundant
1751                         return '';
1752                 }
1753         }
1754
1755         function historyLink() {
1756                 return $this->link(
1757                         $this->mTitle,
1758                         wfMsgHtml( 'history' ),
1759                         array( 'rel' => 'archives' ),
1760                         array( 'action' => 'history' )
1761                 );
1762         }
1763
1764         function whatLinksHere() {
1765                 return $this->link(
1766                         SpecialPage::getTitleFor( 'Whatlinkshere', $this->mTitle->getPrefixedDBkey() ),
1767                         wfMsgHtml( 'whatlinkshere' ),
1768                         array(),
1769                         array(),
1770                         array( 'known', 'noclasses' )
1771                 );
1772         }
1773
1774         function userContribsLink() {
1775                 return $this->link(
1776                         SpecialPage::getTitleFor( 'Contributions', $this->mTitle->getDBkey() ),
1777                         wfMsgHtml( 'contributions' ),
1778                         array(),
1779                         array(),
1780                         array( 'known', 'noclasses' )
1781                 );
1782         }
1783
1784         function showEmailUser( $id ) {
1785                 global $wgUser;
1786                 $targetUser = User::newFromId( $id );
1787                 return  $wgUser->canSendEmail() && # the sending user must have a confirmed email address
1788                         $targetUser->canReceiveEmail(); # the target user must have a confirmed email address and allow emails from users
1789         }
1790
1791         function emailUserLink() {
1792                 return $this->link(
1793                         SpecialPage::getTitleFor( 'Emailuser', $this->mTitle->getDBkey() ),
1794                         wfMsg( 'emailuser' ),
1795                         array(),
1796                         array(),
1797                         array( 'known', 'noclasses' )
1798                 );
1799         }
1800
1801         function watchPageLinksLink() {
1802                 global $wgOut;
1803                 if ( ! $wgOut->isArticleRelated() ) {
1804                         return '(' . wfMsg( 'notanarticle' ) . ')';
1805                 } else {
1806                         return $this->link(
1807                                 SpecialPage::getTitleFor( 'Recentchangeslinked', $this->mTitle->getPrefixedDBkey() ),
1808                                 wfMsg( 'recentchangeslinked-toolbox' ),
1809                                 array(),
1810                                 array(),
1811                                 array( 'known', 'noclasses' )
1812                         );
1813                 }
1814         }
1815
1816         function trackbackLink() {
1817                 return '<a href="' . $this->mTitle->trackbackURL() . '">'
1818                         . wfMsg( 'trackbacklink' ) . '</a>';
1819         }
1820
1821         function otherLanguages() {
1822                 global $wgOut, $wgContLang, $wgHideInterlanguageLinks;
1823
1824                 if ( $wgHideInterlanguageLinks ) {
1825                         return '';
1826                 }
1827
1828                 $a = $wgOut->getLanguageLinks();
1829                 if ( 0 == count( $a ) ) {
1830                         return '';
1831                 }
1832
1833                 $s = wfMsg( 'otherlanguages' ) . wfMsg( 'colon-separator' );
1834                 $first = true;
1835                 if( $wgContLang->isRTL() ) $s .= '<span dir="LTR">';
1836                 foreach( $a as $l ) {
1837                         if ( !$first ) {
1838                                 $s .= wfMsgExt( 'pipe-separator', 'escapenoentities' );
1839                         }
1840                         $first = false;
1841
1842                         $nt = Title::newFromText( $l );
1843                         $url = $nt->escapeFullURL();
1844                         $text = $wgContLang->getLanguageName( $nt->getInterwiki() );
1845
1846                         if ( '' == $text ) { $text = $l; }
1847                         $style = $this->getExternalLinkAttributes();
1848                         $s .= "<a href=\"{$url}\"{$style}>{$text}</a>";
1849                 }
1850                 if( $wgContLang->isRTL() ) $s .= '</span>';
1851                 return $s;
1852         }
1853
1854         function talkLink() {
1855                 if ( NS_SPECIAL == $this->mTitle->getNamespace() ) {
1856                         # No discussion links for special pages
1857                         return '';
1858                 }
1859
1860                 $linkOptions = array();
1861
1862                 if( $this->mTitle->isTalkPage() ) {
1863                         $link = $this->mTitle->getSubjectPage();
1864                         switch( $link->getNamespace() ) {
1865                                 case NS_MAIN:
1866                                         $text = wfMsg( 'articlepage' );
1867                                         break;
1868                                 case NS_USER:
1869                                         $text = wfMsg( 'userpage' );
1870                                         break;
1871                                 case NS_PROJECT:
1872                                         $text = wfMsg( 'projectpage' );
1873                                         break;
1874                                 case NS_FILE:
1875                                         $text = wfMsg( 'imagepage' );
1876                                         # Make link known if image exists, even if the desc. page doesn't.
1877                                         if( wfFindFile( $link ) )
1878                                                 $linkOptions[] = 'known';
1879                                         break;
1880                                 case NS_MEDIAWIKI:
1881                                         $text = wfMsg( 'mediawikipage' );
1882                                         break;
1883                                 case NS_TEMPLATE:
1884                                         $text = wfMsg( 'templatepage' );
1885                                         break;
1886                                 case NS_HELP:
1887                                         $text = wfMsg( 'viewhelppage' );
1888                                         break;
1889                                 case NS_CATEGORY:
1890                                         $text = wfMsg( 'categorypage' );
1891                                         break;
1892                                 default:
1893                                         $text = wfMsg( 'articlepage' );
1894                         }
1895                 } else {
1896                         $link = $this->mTitle->getTalkPage();
1897                         $text = wfMsg( 'talkpage' );
1898                 }
1899
1900                 $s = $this->link( $link, $text, array(), array(), $linkOptions );
1901
1902                 return $s;
1903         }
1904
1905         function commentLink() {
1906                 global $wgOut;
1907
1908                 if ( $this->mTitle->getNamespace() == NS_SPECIAL ) {
1909                         return '';
1910                 }
1911
1912                 # __NEWSECTIONLINK___ changes behaviour here
1913                 # If it is present, the link points to this page, otherwise
1914                 # it points to the talk page
1915                 if( $this->mTitle->isTalkPage() ) {
1916                         $title = $this->mTitle;
1917                 } elseif( $wgOut->showNewSectionLink() ) {
1918                         $title = $this->mTitle;
1919                 } else {
1920                         $title = $this->mTitle->getTalkPage();
1921                 }
1922
1923                 return $this->link(
1924                         $title,
1925                         wfMsg( 'postcomment' ),
1926                         array(),
1927                         array(
1928                                 'action' => 'edit',
1929                                 'section' => 'new'
1930                         ),
1931                         array( 'known', 'noclasses' )
1932                 );
1933         }
1934
1935         /* these are used extensively in SkinTemplate, but also some other places */
1936         static function makeMainPageUrl( $urlaction = '' ) {
1937                 $title = Title::newMainPage();
1938                 self::checkTitle( $title, '' );
1939                 return $title->getLocalURL( $urlaction );
1940         }
1941
1942         static function makeSpecialUrl( $name, $urlaction = '' ) {
1943                 $title = SpecialPage::getTitleFor( $name );
1944                 return $title->getLocalURL( $urlaction );
1945         }
1946
1947         static function makeSpecialUrlSubpage( $name, $subpage, $urlaction = '' ) {
1948                 $title = SpecialPage::getSafeTitleFor( $name, $subpage );
1949                 return $title->getLocalURL( $urlaction );
1950         }
1951
1952         static function makeI18nUrl( $name, $urlaction = '' ) {
1953                 $title = Title::newFromText( wfMsgForContent( $name ) );
1954                 self::checkTitle( $title, $name );
1955                 return $title->getLocalURL( $urlaction );
1956         }
1957
1958         static function makeUrl( $name, $urlaction = '' ) {
1959                 $title = Title::newFromText( $name );
1960                 self::checkTitle( $title, $name );
1961                 return $title->getLocalURL( $urlaction );
1962         }
1963
1964         # If url string starts with http, consider as external URL, else
1965         # internal
1966         static function makeInternalOrExternalUrl( $name ) {
1967                 if ( preg_match( '/^(?:' . wfUrlProtocols() . ')/', $name ) ) {
1968                         return $name;
1969                 } else {
1970                         return self::makeUrl( $name );
1971                 }
1972         }
1973
1974         # this can be passed the NS number as defined in Language.php
1975         static function makeNSUrl( $name, $urlaction = '', $namespace = NS_MAIN ) {
1976                 $title = Title::makeTitleSafe( $namespace, $name );
1977                 self::checkTitle( $title, $name );
1978                 return $title->getLocalURL( $urlaction );
1979         }
1980
1981         /* these return an array with the 'href' and boolean 'exists' */
1982         static function makeUrlDetails( $name, $urlaction = '' ) {
1983                 $title = Title::newFromText( $name );
1984                 self::checkTitle( $title, $name );
1985                 return array(
1986                         'href' => $title->getLocalURL( $urlaction ),
1987                         'exists' => $title->getArticleID() != 0 ? true : false
1988                 );
1989         }
1990
1991         /**
1992          * Make URL details where the article exists (or at least it's convenient to think so)
1993          */
1994         static function makeKnownUrlDetails( $name, $urlaction = '' ) {
1995                 $title = Title::newFromText( $name );
1996                 self::checkTitle( $title, $name );
1997                 return array(
1998                         'href' => $title->getLocalURL( $urlaction ),
1999                         'exists' => true
2000                 );
2001         }
2002
2003         # make sure we have some title to operate on
2004         static function checkTitle( &$title, $name ) {
2005                 if( !is_object( $title ) ) {
2006                         $title = Title::newFromText( $name );
2007                         if( !is_object( $title ) ) {
2008                                 $title = Title::newFromText( '--error: link target missing--' );
2009                         }
2010                 }
2011         }
2012
2013         /**
2014          * Build an array that represents the sidebar(s), the navigation bar among them
2015          *
2016          * @return array
2017          */
2018         function buildSidebar() {
2019                 global $parserMemc, $wgEnableSidebarCache, $wgSidebarCacheExpiry;
2020                 global $wgLang;
2021                 wfProfileIn( __METHOD__ );
2022
2023                 $key = wfMemcKey( 'sidebar', $wgLang->getCode() );
2024
2025                 if ( $wgEnableSidebarCache ) {
2026                         $cachedsidebar = $parserMemc->get( $key );
2027                         if ( $cachedsidebar ) {
2028                                 wfProfileOut( __METHOD__ );
2029                                 return $cachedsidebar;
2030                         }
2031                 }
2032
2033                 $bar = array();
2034                 $lines = explode( "\n", wfMsgForContent( 'sidebar' ) );
2035                 $heading = '';
2036                 foreach( $lines as $line ) {
2037                         if( strpos( $line, '*' ) !== 0 )
2038                                 continue;
2039                         if( strpos( $line, '**') !== 0 ) {
2040                                 $heading = trim( $line, '* ' );
2041                                 if( !array_key_exists( $heading, $bar ) ) $bar[$heading] = array();
2042                         } else {
2043                                 if( strpos( $line, '|' ) !== false ) { // sanity check
2044                                         $line = array_map( 'trim', explode( '|', trim( $line, '* ' ), 2 ) );
2045                                         $link = wfMsgForContent( $line[0] );
2046                                         if( $link == '-' )
2047                                                 continue;
2048
2049                                         $text = wfMsgExt( $line[1], 'parsemag' );
2050                                         if( wfEmptyMsg( $line[1], $text ) )
2051                                                 $text = $line[1];
2052                                         if( wfEmptyMsg( $line[0], $link ) )
2053                                                 $link = $line[0];
2054
2055                                         if ( preg_match( '/^(?:' . wfUrlProtocols() . ')/', $link ) ) {
2056                                                 $href = $link;
2057                                         } else {
2058                                                 $title = Title::newFromText( $link );
2059                                                 if ( $title ) {
2060                                                         $title = $title->fixSpecialName();
2061                                                         $href = $title->getLocalURL();
2062                                                 } else {
2063                                                         $href = 'INVALID-TITLE';
2064                                                 }
2065                                         }
2066
2067                                         $bar[$heading][] = array(
2068                                                 'text' => $text,
2069                                                 'href' => $href,
2070                                                 'id' => 'n-' . strtr( $line[1], ' ', '-' ),
2071                                                 'active' => false
2072                                         );
2073                                 } else { continue; }
2074                         }
2075                 }
2076                 wfRunHooks( 'SkinBuildSidebar', array( $this, &$bar ) );
2077                 if ( $wgEnableSidebarCache ) $parserMemc->set( $key, $bar, $wgSidebarCacheExpiry );
2078                 wfProfileOut( __METHOD__ );
2079                 return $bar;
2080         }
2081
2082         /**
2083          * Should we include common/wikiprintable.css?  Skins that have their own
2084          * print stylesheet should override this and return false.  (This is an
2085          * ugly hack to get Monobook to play nicely with
2086          * OutputPage::headElement().)
2087          *
2088          * @return bool
2089          */
2090         public function commonPrintStylesheet() {
2091                 return true;
2092         }
2093 }