includes/Skin.php

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