includes/Skin.php

   1 <?php
   2 /**
   3  * @defgroup Skins Skins
   4  */
   5
   6 if ( ! defined( 'MEDIAWIKI' ) )
   7         die( 1 );
   8
   9 /**
  10  * The main skin class that provide methods and properties for all other skins.
  11  * This base class is also the "Standard" skin.
  12  *
  13  * See docs/skin.txt for more information.
  14  *
  15  * @ingroup Skins
  16  */
  17 class Skin extends Linker {
  18         /**#@+
  19          * @private
  20          */
  21         var $mWatchLinkNum = 0; // Appended to end of watch link id's
  22         // How many search boxes have we made?  Avoid duplicate id's.
  23         protected $searchboxes = '';
  24         /**#@-*/
  25         protected $mRevisionId; // The revision ID we're looking at, null if not applicable.
  26         protected $skinname = 'standard';
  27         // @fixme Should be protected :-\
  28         var $mTitle = null;
  29
  30         /** Constructor, call parent constructor */
  31         function Skin() { parent::__construct(); }
  32
  33         /**
  34          * Fetch the set of available skins.
  35          * @return array of strings
  36          * @static
  37          */
  38         static function getSkinNames() {
  39                 global $wgValidSkinNames;
  40                 static $skinsInitialised = false;
  41                 if ( !$skinsInitialised ) {
  42                         # Get a list of available skins
  43                         # Build using the regular expression '^(.*).php$'
  44                         # Array keys are all lower case, array value keep the case used by filename
  45                         #
  46                         wfProfileIn( __METHOD__ . '-init' );
  47                         global $wgStyleDirectory;
  48                         $skinDir = dir( $wgStyleDirectory );
  49
  50                         # while code from www.php.net
  51                         while( false !== ( $file = $skinDir->read() ) ) {
  52                                 // Skip non-PHP files, hidden files, and '.dep' includes
  53                                 $matches = array();
  54                                 if( preg_match( '/^([^.]*)\.php$/', $file, $matches ) ) {
  55                                         $aSkin = $matches[1];
  56                                         $wgValidSkinNames[strtolower($aSkin)] = $aSkin;
  57                                 }
  58                         }
  59                         $skinDir->close();
  60                         $skinsInitialised = true;
  61                         wfProfileOut( __METHOD__ . '-init' );
  62                 }
  63                 return $wgValidSkinNames;
  64         }
  65
  66         /**
  67          * Fetch the list of usable skins in regards to $wgSkipSkins.
  68          * Useful for Special:Preferences and other places where you
  69          * only want to show skins users _can_ use.
  70          * @return array of strings
  71          */
  72         public static function getUsableSkins() {
  73                 global $wgSkipSkins;
  74                 $usableSkins = self::getSkinNames();
  75                 foreach ( $wgSkipSkins as $skip ) {
  76                         unset( $usableSkins[$skip] );
  77                 }
  78                 return $usableSkins;
  79         }
  80
  81         /**
  82          * Normalize a skin preference value to a form that can be loaded.
  83          * If a skin can't be found, it will fall back to the configured
  84          * default (or the old 'Classic' skin if that's broken).
  85          * @param string $key
  86          * @return string
  87          * @static
  88          */
  89         static function normalizeKey( $key ) {
  90                 global $wgDefaultSkin;
  91                 $skinNames = Skin::getSkinNames();
  92
  93                 if( $key == '' ) {
  94                         // Don't return the default immediately;
  95                         // in a misconfiguration we need to fall back.
  96                         $key = $wgDefaultSkin;
  97                 }
  98
  99                 if( isset( $skinNames[$key] ) ) {
 100                         return $key;
 101                 }
 102
 103                 // Older versions of the software used a numeric setting
 104                 // in the user preferences.
 105                 $fallback = array(
 106                         0 => $wgDefaultSkin,
 107                         1 => 'nostalgia',
 108                         2 => 'cologneblue' );
 109
 110                 if( isset( $fallback[$key] ) ){
 111                         $key = $fallback[$key];
 112                 }
 113
 114                 if( isset( $skinNames[$key] ) ) {
 115                         return $key;
 116                 } else {
 117                         return 'monobook';
 118                 }
 119         }
 120
 121         /**
 122          * Factory method for loading a skin of a given type
 123          * @param string $key 'monobook', 'standard', etc
 124          * @return Skin
 125          * @static
 126          */
 127         static function &newFromKey( $key ) {
 128                 global $wgStyleDirectory;
 129
 130                 $key = Skin::normalizeKey( $key );
 131
 132                 $skinNames = Skin::getSkinNames();
 133                 $skinName = $skinNames[$key];
 134                 $className = 'Skin'.ucfirst($key);
 135
 136                 # Grab the skin class and initialise it.
 137                 if ( !class_exists( $className ) ) {
 138                         // Preload base classes to work around APC/PHP5 bug
 139                         $deps = "{$wgStyleDirectory}/{$skinName}.deps.php";
 140                         if( file_exists( $deps ) ) include_once( $deps );
 141                         require_once( "{$wgStyleDirectory}/{$skinName}.php" );
 142
 143                         # Check if we got if not failback to default skin
 144                         if( !class_exists( $className ) ) {
 145                                 # DO NOT die if the class isn't found. This breaks maintenance
 146                                 # scripts and can cause a user account to be unrecoverable
 147                                 # except by SQL manipulation if a previously valid skin name
 148                                 # is no longer valid.
 149                                 wfDebug( "Skin class does not exist: $className\n" );
 150                                 $className = 'SkinMonobook';
 151                                 require_once( "{$wgStyleDirectory}/MonoBook.php" );
 152                         }
 153                 }
 154                 $skin = new $className;
 155                 return $skin;
 156         }
 157
 158         /** @return string path to the skin stylesheet */
 159         function getStylesheet() {
 160                 return 'common/wikistandard.css';
 161         }
 162
 163         /** @return string skin name */
 164         public function getSkinName() {
 165                 return $this->skinname;
 166         }
 167
 168         function qbSetting() {
 169                 global $wgOut, $wgUser;
 170
 171                 if ( $wgOut->isQuickbarSuppressed() ) { return 0; }
 172                 $q = $wgUser->getOption( 'quickbar', 0 );
 173                 return $q;
 174         }
 175
 176         function initPage( OutputPage $out ) {
 177                 global $wgFavicon, $wgAppleTouchIcon;
 178
 179                 wfProfileIn( __METHOD__ );
 180
 181                 # Generally the order of the favicon and apple-touch-icon links
 182                 # should not matter, but Konqueror (3.5.9 at least) incorrectly
 183                 # uses whichever one appears later in the HTML source.  Make sure
 184                 # apple-touch-icon is specified first to avoid this.
 185                 if( false !== $wgAppleTouchIcon ) {
 186                         $out->addLink( array( 'rel' => 'apple-touch-icon', 'href' => $wgAppleTouchIcon ) );
 187                 }
 188
 189                 if( false !== $wgFavicon ) {
 190                         $out->addLink( array( 'rel' => 'shortcut icon', 'href' => $wgFavicon ) );
 191                 }
 192
 193                 # OpenSearch description link
 194                 $out->addLink( array(
 195                         'rel' => 'search',
 196                         'type' => 'application/opensearchdescription+xml',
 197                         'href' => wfScript( 'opensearch_desc' ),
 198                         'title' => wfMsgForContent( 'opensearch-desc' ),
 199                 ));
 200
 201                 $this->addMetadataLinks( $out );
 202
 203                 $this->mRevisionId = $out->mRevisionId;
 204
 205                 $this->preloadExistence();
 206
 207                 wfProfileOut( __METHOD__ );
 208         }
 209
 210         /**
 211          * Preload the existence of three commonly-requested pages in a single query
 212          */
 213         function preloadExistence() {
 214                 global $wgUser;
 215
 216                 // User/talk link
 217                 $titles = array( $wgUser->getUserPage(), $wgUser->getTalkPage() );
 218
 219                 // Other tab link
 220                 if ( $this->mTitle->getNamespace() == NS_SPECIAL ) {
 221                         // nothing
 222                 } elseif ( $this->mTitle->isTalkPage() ) {
 223                         $titles[] = $this->mTitle->getSubjectPage();
 224                 } else {
 225                         $titles[] = $this->mTitle->getTalkPage();
 226                 }
 227
 228                 $lb = new LinkBatch( $titles );
 229                 $lb->execute();
 230         }
 231
 232         function addMetadataLinks( OutputPage $out ) {
 233                 global $wgEnableDublinCoreRdf, $wgEnableCreativeCommonsRdf;
 234                 global $wgRightsPage, $wgRightsUrl;
 235
 236                 if( $out->isArticleRelated() ) {
 237                         # note: buggy CC software only reads first "meta" link
 238                         if( $wgEnableCreativeCommonsRdf ) {
 239                                 $out->addMetadataLink( array(
 240                                         'title' => 'Creative Commons',
 241                                         'type' => 'application/rdf+xml',
 242                                         'href' => $this->mTitle->getLocalURL( 'action=creativecommons' ) )
 243                                 );
 244                         }
 245                         if( $wgEnableDublinCoreRdf ) {
 246                                 $out->addMetadataLink( array(
 247                                         'title' => 'Dublin Core',
 248                                         'type' => 'application/rdf+xml',
 249                                         'href' => $this->mTitle->getLocalURL( 'action=dublincore' ) )
 250                                 );
 251                         }
 252                 }
 253                 $copyright = '';
 254                 if( $wgRightsPage ) {
 255                         $copy = Title::newFromText( $wgRightsPage );
 256                         if( $copy ) {
 257                                 $copyright = $copy->getLocalURL();
 258                         }
 259                 }
 260                 if( !$copyright && $wgRightsUrl ) {
 261                         $copyright = $wgRightsUrl;
 262                 }
 263                 if( $copyright ) {
 264                         $out->addLink( array(
 265                                 'rel' => 'copyright',
 266                                 'href' => $copyright )
 267                         );
 268                 }
 269         }
 270
 271         /**
 272          * Set some local variables
 273          */
 274         protected function setMembers(){
 275                 global $wgUser;
 276                 $this->mUser = $wgUser;
 277                 $this->userpage = $wgUser->getUserPage()->getPrefixedText();
 278                 $this->usercss = false;
 279         }
 280
 281         /**
 282          * Set the title
 283          * @param Title $t The title to use
 284          */
 285         public function setTitle( $t ) {
 286                 $this->mTitle = $t;
 287         }
 288
 289         /** Get the title */
 290         public function getTitle() {
 291                 return $this->mTitle;
 292         }
 293
 294         function outputPage( OutputPage $out ) {
 295                 global $wgDebugComments;
 296                 wfProfileIn( __METHOD__ );
 297
 298                 $this->setMembers();
 299                 $this->initPage( $out );
 300
 301                 // See self::afterContentHook() for documentation
 302                 $afterContent = $this->afterContentHook();
 303
 304                 $out->out( $out->headElement( $this ) );
 305
 306                 $out->out( "\n<body" );
 307                 $ops = $this->getBodyOptions();
 308                 foreach ( $ops as $name => $val ) {
 309                         $out->out( " $name='$val'" );
 310                 }
 311                 $out->out( ">\n" );
 312                 if ( $wgDebugComments ) {
 313                         $out->out( "<!-- Wiki debugging output:\n" .
 314                           $out->mDebugtext . "-->\n" );
 315                 }
 316
 317                 $out->out( $this->beforeContent() );
 318
 319                 $out->out( $out->mBodytext . "\n" );
 320
 321                 $out->out( $this->afterContent() );
 322
 323                 $out->out( $afterContent );
 324
 325                 $out->out( $this->bottomScripts() );
 326
 327                 $out->out( wfReportTime() );
 328
 329                 $out->out( "\n</body></html>" );
 330                 wfProfileOut( __METHOD__ );
 331         }
 332
 333         static function makeVariablesScript( $data ) {
 334                 if( $data ) {
 335                         $r = array();
 336                         foreach ( $data as $name => $value ) {
 337                                 $encValue = Xml::encodeJsVar( $value );
 338                                 $r[] = "$name=$encValue";
 339                         }
 340                         $js = 'var ' . implode( ",\n", $r ) . ';';
 341                         return Html::inlineScript( "\n$js\n" );
 342                 } else {
 343                         return '';
 344                 }
 345         }
 346
 347         /**
 348          * Make a <script> tag containing global variables
 349          * @param $skinName string Name of the skin
 350          * The odd calling convention is for backwards compatibility
 351          * @TODO @FIXME Make this not depend on $wgTitle!
 352          */
 353         static function makeGlobalVariablesScript( $skinName ) {
 354                 if ( is_array( $skinName ) ) {
 355                         # Weird back-compat stuff.
 356                         $skinName = $skinName['skinname'];
 357                 }
 358                 global $wgScript, $wgTitle, $wgStylePath, $wgUser, $wgScriptExtension;
 359                 global $wgArticlePath, $wgScriptPath, $wgServer, $wgContLang, $wgLang;
 360                 global $wgCanonicalNamespaceNames, $wgOut, $wgArticle;
 361                 global $wgBreakFrames, $wgRequest, $wgVariantArticlePath, $wgActionPaths;
 362                 global $wgUseAjax, $wgAjaxWatch;
 363                 global $wgVersion, $wgEnableAPI, $wgEnableWriteAPI;
 364                 global $wgRestrictionTypes, $wgLivePreview;
 365                 global $wgMWSuggestTemplate, $wgDBname, $wgEnableMWSuggest;
 366
 367                 $ns = $wgTitle->getNamespace();
 368                 $nsname = isset( $wgCanonicalNamespaceNames[ $ns ] ) ? $wgCanonicalNamespaceNames[ $ns ] : $wgTitle->getNsText();
 369                 $separatorTransTable = $wgContLang->separatorTransformTable();
 370                 $separatorTransTable = $separatorTransTable ? $separatorTransTable : array();
 371                 $compactSeparatorTransTable = array(
 372                         implode( "\t", array_keys( $separatorTransTable ) ),
 373                         implode( "\t", $separatorTransTable ),
 374                 );
 375                 $digitTransTable = $wgContLang->digitTransformTable();
 376                 $digitTransTable = $digitTransTable ? $digitTransTable : array();
 377                 $compactDigitTransTable = array(
 378                         implode( "\t", array_keys( $digitTransTable ) ),
 379                         implode( "\t", $digitTransTable ),
 380                 );
 381
 382                 $mainPage = Title::newFromText( wfMsgForContent( 'mainpage' ) );
 383                 $vars = array(
 384                         'skin' => $skinName,
 385                         'stylepath' => $wgStylePath,
 386                         'wgArticlePath' => $wgArticlePath,
 387                         'wgScriptPath' => $wgScriptPath,
 388                         'wgScriptExtension' => $wgScriptExtension,
 389                         'wgScript' => $wgScript,
 390                         'wgVariantArticlePath' => $wgVariantArticlePath,
 391                         'wgActionPaths' => (object)$wgActionPaths,
 392                         'wgServer' => $wgServer,
 393                         'wgCanonicalNamespace' => $nsname,
 394                         'wgCanonicalSpecialPageName' => $ns == NS_SPECIAL ?
 395                                 SpecialPage::resolveAlias( $wgTitle->getDBkey() ) : false, # bug 21115
 396                         'wgNamespaceNumber' => $wgTitle->getNamespace(),
 397                         'wgPageName' => $wgTitle->getPrefixedDBKey(),
 398                         'wgTitle' => $wgTitle->getText(),
 399                         'wgAction' => $wgRequest->getText( 'action', 'view' ),
 400                         'wgArticleId' => $wgTitle->getArticleId(),
 401                         'wgIsArticle' => $wgOut->isArticle(),
 402                         'wgUserName' => $wgUser->isAnon() ? NULL : $wgUser->getName(),
 403                         'wgUserGroups' => $wgUser->isAnon() ? NULL : $wgUser->getEffectiveGroups(),
 404                         'wgUserLanguage' => $wgLang->getCode(),
 405                         'wgContentLanguage' => $wgContLang->getCode(),
 406                         'wgBreakFrames' => $wgBreakFrames,
 407                         'wgCurRevisionId' => isset( $wgArticle ) ? $wgArticle->getLatest() : 0,
 408                         'wgVersion' => $wgVersion,
 409                         'wgEnableAPI' => $wgEnableAPI,
 410                         'wgEnableWriteAPI' => $wgEnableWriteAPI,
 411                         'wgSeparatorTransformTable' => $compactSeparatorTransTable,
 412                         'wgDigitTransformTable' => $compactDigitTransTable,
 413                         'wgMainPageTitle' => $mainPage ? $mainPage->getPrefixedText() : null,
 414                         'wgFormattedNamespaces' => $wgContLang->getFormattedNamespaces(),
 415                         'wgNamespaceIds' => $wgContLang->getNamespaceIds(),
 416                 );
 417                 if ( $wgContLang->hasVariants() ) {
 418                         $vars['wgUserVariant'] = $wgContLang->getPreferredVariant();
 419                 }
 420
 421                 //if on upload page output the extension list & js_upload
 422                 if( SpecialPage::resolveAlias( $wgTitle->getDBkey() ) ==  "Upload" ) {
 423                         global $wgFileExtensions, $wgAjaxUploadInterface;
 424                         $vars['wgFileExtensions'] = $wgFileExtensions;
 425                         $vars['wgAjaxUploadInterface'] = $wgAjaxUploadInterface;
 426                 }
 427
 428                 if( $wgUseAjax && $wgEnableMWSuggest && !$wgUser->getOption( 'disablesuggest', false ) ){
 429                         $vars['wgMWSuggestTemplate'] = SearchEngine::getMWSuggestTemplate();
 430                         $vars['wgDBname'] = $wgDBname;
 431                         $vars['wgSearchNamespaces'] = SearchEngine::userNamespaces( $wgUser );
 432                         $vars['wgMWSuggestMessages'] = array( wfMsg( 'search-mwsuggest-enabled' ), wfMsg( 'search-mwsuggest-disabled' ) );
 433                 }
 434
 435                 foreach( $wgRestrictionTypes as $type )
 436                         $vars['wgRestriction' . ucfirst( $type )] = $wgTitle->getRestrictions( $type );
 437
 438                 if ( $wgLivePreview && $wgUser->getOption( 'uselivepreview' ) ) {
 439                         $vars['wgLivepreviewMessageLoading'] = wfMsg( 'livepreview-loading' );
 440                         $vars['wgLivepreviewMessageReady']   = wfMsg( 'livepreview-ready' );
 441                         $vars['wgLivepreviewMessageFailed']  = wfMsg( 'livepreview-failed' );
 442                         $vars['wgLivepreviewMessageError']   = wfMsg( 'livepreview-error' );
 443                 }
 444
 445                 if ( $wgOut->isArticleRelated() && $wgUseAjax && $wgAjaxWatch && $wgUser->isLoggedIn() ) {
 446                         $msgs = (object)array();
 447                         foreach ( array( 'watch', 'unwatch', 'watching', 'unwatching' ) as $msgName ) {
 448                                 $msgs->{$msgName . 'Msg'} = wfMsg( $msgName );
 449                         }
 450                         $vars['wgAjaxWatch'] = $msgs;
 451                 }
 452
 453                 // Allow extensions to add their custom variables to the global JS variables
 454                 wfRunHooks( 'MakeGlobalVariablesScript', array( &$vars ) );
 455
 456                 return self::makeVariablesScript( $vars );
 457         }
 458
 459         /**
 460          * To make it harder for someone to slip a user a fake
 461          * user-JavaScript or user-CSS preview, a random token
 462          * is associated with the login session. If it's not
 463          * passed back with the preview request, we won't render
 464          * the code.
 465          *
 466          * @param string $action
 467          * @return bool
 468          */
 469         public function userCanPreview( $action ) {
 470                 global $wgRequest, $wgUser;
 471
 472                 if( $action != 'submit' )
 473                         return false;
 474                 if( !$wgRequest->wasPosted() )
 475                         return false;
 476                 if( !$this->mTitle->userCanEditCssSubpage() )
 477                         return false;
 478                 if( !$this->mTitle->userCanEditJsSubpage() )
 479                         return false;
 480                 return $wgUser->matchEditToken(
 481                         $wgRequest->getVal( 'wpEditToken' ) );
 482         }
 483
 484         /**
 485          * generated JavaScript action=raw&gen=js
 486          * This returns MediaWiki:Common.js and MediaWiki:[Skinname].js concate-
 487          * nated together.  For some bizarre reason, it does *not* return any
 488          * custom user JS from subpages.  Huh?
 489          *
 490          * There's absolutely no reason to have separate Monobook/Common JSes.
 491          * Any JS that cares can just check the skin variable generated at the
 492          * top.  For now Monobook.js will be maintained, but it should be consi-
 493          * dered deprecated.
 494          *
 495          * @param $force_skin string If set, overrides the skin name
 496          *
 497          * @return string
 498          */
 499         public function generateUserJs( $skinName = null ) {
 500                 global $wgStylePath;
 501
 502                 wfProfileIn( __METHOD__ );
 503                 if( !$skinName ) {
 504                         $skinName =     $this->getSkinName();
 505                 }
 506
 507                 $s = "/* generated javascript */\n";
 508                 $s .= "var skin = '" . Xml::escapeJsString($skinName ) . "';\n";
 509                 $s .= "var stylepath = '" . Xml::escapeJsString( $wgStylePath ) . "';";
 510                 $s .= "\n\n/* MediaWiki:Common.js */\n";
 511                 $commonJs = wfMsgForContent( 'common.js' );
 512                 if ( !wfEmptyMsg( 'common.js', $commonJs ) ) {
 513                         $s .= $commonJs;
 514                 }
 515
 516                 $s .= "\n\n/* MediaWiki:".ucfirst( $skinName ).".js */\n";
 517                 // avoid inclusion of non defined user JavaScript (with custom skins only)
 518                 // by checking for default message content
 519                 $msgKey = ucfirst( $skinName ) . '.js';
 520                 $userJS = wfMsgForContent( $msgKey );
 521                 if ( !wfEmptyMsg( $msgKey, $userJS ) ) {
 522                         $s .= $userJS;
 523                 }
 524
 525                 wfProfileOut( __METHOD__ );
 526                 return $s;
 527         }
 528
 529         /**
 530          * Generate user stylesheet for action=raw&gen=css
 531          */
 532         public function generateUserStylesheet() {
 533                 wfProfileIn( __METHOD__ );
 534                 $s = "/* generated user stylesheet */\n" .
 535                         $this->reallyGenerateUserStylesheet();
 536                 wfProfileOut( __METHOD__ );
 537                 return $s;
 538         }
 539
 540         /**
 541          * Split for easier subclassing in SkinSimple, SkinStandard and SkinCologneBlue
 542          */
 543         protected function reallyGenerateUserStylesheet(){
 544                 global $wgUser;
 545                 $s = '';
 546                 if( ( $undopt = $wgUser->getOption( 'underline' ) ) < 2 ) {
 547                         $underline = $undopt ? 'underline' : 'none';
 548                         $s .= "a { text-decoration: $underline; }\n";
 549                 }
 550                 if( $wgUser->getOption( 'highlightbroken' ) ) {
 551                         $s .= "a.new, #quickbar a.new { color: #CC2200; }\n";
 552                 } else {
 553                         $s .= <<<END
 554 a.new, #quickbar a.new,
 555 a.stub, #quickbar a.stub {
 556         color: inherit;
 557 }
 558 a.new:after, #quickbar a.new:after {
 559         content: "?";
 560         color: #CC2200;
 561 }
 562 a.stub:after, #quickbar a.stub:after {
 563         content: "!";
 564         color: #772233;
 565 }
 566 END;
 567                 }
 568                 if( $wgUser->getOption( 'justify' ) ) {
 569                         $s .= "#article, #bodyContent, #mw_content { text-align: justify; }\n";
 570                 }
 571                 if( !$wgUser->getOption( 'showtoc' ) ) {
 572                         $s .= "#toc { display: none; }\n";
 573                 }
 574                 if( !$wgUser->getOption( 'editsection' ) ) {
 575                         $s .= ".editsection { display: none; }\n";
 576                 }
 577                 $fontstyle = $wgUser->getOption( 'editfont' );
 578                 if ( $fontstyle !== 'default' ) {
 579                         $s .= "textarea { font-family: $fontstyle; }\n";
 580                 }
 581                 return $s;
 582         }
 583
 584         /**
 585          * @private
 586          */
 587         function setupUserCss( OutputPage $out ) {
 588                 global $wgRequest, $wgContLang, $wgUser;
 589                 global $wgAllowUserCss, $wgUseSiteCss, $wgSquidMaxage, $wgStylePath;
 590
 591                 wfProfileIn( __METHOD__ );
 592
 593                 $this->setupSkinUserCss( $out );
 594
 595                 $siteargs = array(
 596                         'action' => 'raw',
 597                         'maxage' => $wgSquidMaxage,
 598                 );
 599
 600                 // Add any extension CSS
 601                 foreach ( $out->getExtStyle() as $url ) {
 602                         $out->addStyle( $url );
 603                 }
 604
 605                 // If we use the site's dynamic CSS, throw that in, too
 606                 // Per-site custom styles
 607                 if( $wgUseSiteCss ) {
 608                         global $wgHandheldStyle;
 609                         $query = wfArrayToCGI( array(
 610                                 'usemsgcache' => 'yes',
 611                                 'ctype' => 'text/css',
 612                                 'smaxage' => $wgSquidMaxage
 613                         ) + $siteargs );
 614                         # Site settings must override extension css! (bug 15025)
 615                         $out->addStyle( self::makeNSUrl( 'Common.css', $query, NS_MEDIAWIKI ) );
 616                         $out->addStyle( self::makeNSUrl( 'Print.css', $query, NS_MEDIAWIKI ), 'print' );
 617                         if( $wgHandheldStyle ) {
 618                                 $out->addStyle( self::makeNSUrl( 'Handheld.css', $query, NS_MEDIAWIKI ), 'handheld' );
 619                         }
 620                         $out->addStyle( self::makeNSUrl( $this->getSkinName() . '.css', $query, NS_MEDIAWIKI ) );
 621                 }
 622
 623                 if( $wgUser->isLoggedIn() ) {
 624                         // Ensure that logged-in users' generated CSS isn't clobbered
 625                         // by anons' publicly cacheable generated CSS.
 626                         $siteargs['smaxage'] = '0';
 627                         $siteargs['ts'] = $wgUser->mTouched;
 628                 }
 629                 // Per-user styles based on preferences
 630                 $siteargs['gen'] = 'css';
 631                 if( ( $us = $wgRequest->getVal( 'useskin', '' ) ) !== '' ) {
 632                         $siteargs['useskin'] = $us;
 633                 }
 634                 $out->addStyle( self::makeUrl( '-', wfArrayToCGI( $siteargs ) ) );
 635
 636                 // Per-user custom style pages
 637                 if( $wgAllowUserCss && $wgUser->isLoggedIn() ) {
 638                         $action = $wgRequest->getVal( 'action' );
 639                         # If we're previewing the CSS page, use it
 640                         if( $this->mTitle->isCssSubpage() && $this->userCanPreview( $action ) ) {
 641                                 // @FIXME: properly escape the cdata!
 642                                 $out->addInlineStyle( $wgRequest->getText( 'wpTextbox1' ) );
 643                         } else {
 644                                 $out->addStyle( self::makeUrl( $this->userpage . '/' . $this->getSkinName() .'.css',
 645                                         'action=raw&ctype=text/css' ) );
 646                         }
 647                 }
 648
 649                 wfProfileOut( __METHOD__ );
 650         }
 651
 652         /**
 653          * Add skin specific stylesheets
 654          * @param $out OutputPage
 655          */
 656         function setupSkinUserCss( OutputPage $out ) {
 657                 $out->addStyle( 'common/shared.css' );
 658                 $out->addStyle( 'common/oldshared.css' );
 659                 $out->addStyle( $this->getStylesheet() );
 660                 $out->addStyle( 'common/common_rtl.css', '', '', 'rtl' );
 661         }
 662
 663         function getBodyOptions() {
 664                 global $wgUser, $wgOut, $wgRequest, $wgContLang;
 665
 666                 extract( $wgRequest->getValues( 'oldid', 'redirect', 'diff' ) );
 667
 668                 if ( 0 != $this->mTitle->getNamespace() ) {
 669                         $a = array( 'bgcolor' => '#ffffec' );
 670                 }
 671                 else $a = array( 'bgcolor' => '#FFFFFF' );
 672                 if( $wgOut->isArticle() && $wgUser->getOption( 'editondblclick' ) &&
 673                   $this->mTitle->quickUserCan( 'edit' ) ) {
 674                         $s = $this->mTitle->getFullURL( $this->editUrlOptions() );
 675                         $s = 'document.location = "' .Xml::escapeJsString( $s ) .'";';
 676                         $a += array( 'ondblclick' => $s );
 677                 }
 678                 $a['onload'] = $wgOut->getOnloadHandler();
 679                 $a['class'] =
 680                         'mediawiki' .
 681                         ' '.( $wgContLang->getDir() ).
 682                         ' '.$this->getPageClasses( $this->mTitle ) .
 683                         ' skin-'. Sanitizer::escapeClass( $this->getSkinName() );
 684                 return $a;
 685         }
 686
 687         function getPageClasses( $title ) {
 688                 $numeric = 'ns-'.$title->getNamespace();
 689                 if( $title->getNamespace() == NS_SPECIAL ) {
 690                         $type = 'ns-special';
 691                 } elseif( $title->isTalkPage() ) {
 692                         $type = 'ns-talk';
 693                 } else {
 694                         $type = 'ns-subject';
 695                 }
 696                 $name = Sanitizer::escapeClass( 'page-'.$title->getPrefixedText() );
 697                 return "$numeric $type $name";
 698         }
 699
 700         /**
 701          * URL to the logo
 702          */
 703         function getLogo() {
 704                 global $wgLogo;
 705                 return $wgLogo;
 706         }
 707
 708         /**
 709          * This will be called immediately after the <body> tag.  Split into
 710          * two functions to make it easier to subclass.
 711          */
 712         function beforeContent() {
 713                 return $this->doBeforeContent();
 714         }
 715
 716         function doBeforeContent() {
 717                 global $wgContLang;
 718                 wfProfileIn( __METHOD__ );
 719
 720                 $s = '';
 721                 $qb = $this->qbSetting();
 722
 723                 if( $langlinks = $this->otherLanguages() ) {
 724                         $rows = 2;
 725                         $borderhack = '';
 726                 } else {
 727                         $rows = 1;
 728                         $langlinks = false;
 729                         $borderhack = 'class="top"';
 730                 }
 731
 732                 $s .= "\n<div id='content'>\n<div id='topbar'>\n" .
 733                   "<table border='0' cellspacing='0' width='98%'>\n<tr>\n";
 734
 735                 $shove = ( $qb != 0 );
 736                 $left = ( $qb == 1 || $qb == 3 );
 737                 if( $wgContLang->isRTL() ) $left = !$left;
 738
 739                 if( !$shove ) {
 740                         $s .= "<td class='top' align='left' valign='top' rowspan='{$rows}'>\n" .
 741                           $this->logoText() . '</td>';
 742                 } elseif( $left ) {
 743                         $s .= $this->getQuickbarCompensator( $rows );
 744                 }
 745                 $l = $wgContLang->alignStart();
 746                 $s .= "<td {$borderhack} align='$l' valign='top'>\n";
 747
 748                 $s .= $this->topLinks();
 749                 $s .= "<p class='subtitle'>" . $this->pageTitleLinks() . "</p>\n";
 750
 751                 $r = $wgContLang->alignEnd();
 752                 $s .= "</td>\n<td {$borderhack} valign='top' align='$r' nowrap='nowrap'>";
 753                 $s .= $this->nameAndLogin();
 754                 $s .= "\n<br />" . $this->searchForm() . "</td>";
 755
 756                 if ( $langlinks ) {
 757                         $s .= "</tr>\n<tr>\n<td class='top' colspan=\"2\">$langlinks</td>\n";
 758                 }
 759
 760                 if ( $shove && !$left ) { # Right
 761                         $s .= $this->getQuickbarCompensator( $rows );
 762                 }
 763                 $s .= "</tr>\n</table>\n</div>\n";
 764                 $s .= "\n<div id='article'>\n";
 765
 766                 $notice = wfGetSiteNotice();
 767                 if( $notice ) {
 768                         $s .= "\n<div id='siteNotice'>$notice</div>\n";
 769                 }
 770                 $s .= $this->pageTitle();
 771                 $s .= $this->pageSubtitle();
 772                 $s .= $this->getCategories();
 773                 wfProfileOut( __METHOD__ );
 774                 return $s;
 775         }
 776
 777
 778         function getCategoryLinks() {
 779                 global $wgOut, $wgUseCategoryBrowser;
 780                 global $wgContLang, $wgUser;
 781
 782                 if( count( $wgOut->mCategoryLinks ) == 0 ) return '';
 783
 784                 # Separator
 785                 $sep = wfMsgExt( 'catseparator', array( 'parsemag', 'escapenoentities' ) );
 786
 787                 // Use Unicode bidi embedding override characters,
 788                 // to make sure links don't smash each other up in ugly ways.
 789                 $dir = $wgContLang->getDir();
 790                 $embed = "<span dir='$dir'>";
 791                 $pop = '</span>';
 792
 793                 $allCats = $wgOut->getCategoryLinks();
 794                 $s = '';
 795                 $colon = wfMsgExt( 'colon-separator', 'escapenoentities' );
 796                 if ( !empty( $allCats['normal'] ) ) {
 797                         $t = $embed . implode( "{$pop} {$sep} {$embed}" , $allCats['normal'] ) . $pop;
 798
 799                         $msg = wfMsgExt( 'pagecategories', array( 'parsemag', 'escapenoentities' ), count( $allCats['normal'] ) );
 800                         $s .= '<div id="mw-normal-catlinks">' .
 801                                 $this->link( Title::newFromText( wfMsgForContent( 'pagecategorieslink' ) ), $msg )
 802                                 . $colon . $t . '</div>';
 803                 }
 804
 805                 # Hidden categories
 806                 if ( isset( $allCats['hidden'] ) ) {
 807                         if ( $wgUser->getBoolOption( 'showhiddencats' ) ) {
 808                                 $class ='mw-hidden-cats-user-shown';
 809                         } elseif ( $this->mTitle->getNamespace() == NS_CATEGORY ) {
 810                                 $class = 'mw-hidden-cats-ns-shown';
 811                         } else {
 812                                 $class = 'mw-hidden-cats-hidden';
 813                         }
 814                         $s .= "<div id=\"mw-hidden-catlinks\" class=\"$class\">" .
 815                                 wfMsgExt( 'hidden-categories', array( 'parsemag', 'escapenoentities' ), count( $allCats['hidden'] ) ) .
 816                                 $colon . $embed . implode( "$pop $sep $embed", $allCats['hidden'] ) . $pop .
 817                                 "</div>";
 818                 }
 819
 820                 # optional 'dmoz-like' category browser. Will be shown under the list
 821                 # of categories an article belong to
 822                 if( $wgUseCategoryBrowser ){
 823                         $s .= '<br /><hr />';
 824
 825                         # get a big array of the parents tree
 826                         $parenttree = $this->mTitle->getParentCategoryTree();
 827                         # Skin object passed by reference cause it can not be
 828                         # accessed under the method subfunction drawCategoryBrowser
 829                         $tempout = explode( "\n", Skin::drawCategoryBrowser( $parenttree, $this ) );
 830                         # Clean out bogus first entry and sort them
 831                         unset( $tempout[0] );
 832                         asort( $tempout );
 833                         # Output one per line
 834                         $s .= implode( "<br />\n", $tempout );
 835                 }
 836
 837                 return $s;
 838         }
 839
 840         /**
 841          * Render the array as a serie of links.
 842          * @param $tree Array: categories tree returned by Title::getParentCategoryTree
 843          * @param &skin Object: skin passed by reference
 844          * @return String separated by &gt;, terminate with "\n"
 845          */
 846         function drawCategoryBrowser( $tree, &$skin ){
 847                 $return = '';
 848                 foreach( $tree as $element => $parent ) {
 849                         if( empty( $parent ) ) {
 850                                 # element start a new list
 851                                 $return .= "\n";
 852                         } else {
 853                                 # grab the others elements
 854                                 $return .= Skin::drawCategoryBrowser( $parent, $skin ) . ' &gt; ';
 855                         }
 856                         # add our current element to the list
 857                         $eltitle = Title::newFromText( $element );
 858                         $return .=  $skin->link( $eltitle, $eltitle->getText() );
 859                 }
 860                 return $return;
 861         }
 862
 863         function getCategories() {
 864                 $catlinks = $this->getCategoryLinks();
 865
 866                 $classes = 'catlinks';
 867
 868                 // Check what we're showing
 869                 global $wgOut, $wgUser;
 870                 $allCats = $wgOut->getCategoryLinks();
 871                 $showHidden = $wgUser->getBoolOption( 'showhiddencats' ) ||
 872                                                 $this->mTitle->getNamespace() == NS_CATEGORY;
 873
 874                 if( empty($allCats['normal']) && !( !empty($allCats['hidden']) && $showHidden ) ) {
 875                         $classes .= ' catlinks-allhidden';
 876                 }
 877
 878                 return "<div id='catlinks' class='$classes'>{$catlinks}</div>";
 879         }
 880
 881         function getQuickbarCompensator( $rows = 1 ) {
 882                 return "<td width='152' rowspan='{$rows}'>&nbsp;</td>";
 883         }
 884
 885         /**
 886          * This runs a hook to allow extensions placing their stuff after content
 887          * and article metadata (e.g. categories).
 888          * Note: This function has nothing to do with afterContent().
 889          *
 890          * This hook is placed here in order to allow using the same hook for all
 891          * skins, both the SkinTemplate based ones and the older ones, which directly
 892          * use this class to get their data.
 893          *
 894          * The output of this function gets processed in SkinTemplate::outputPage() for
 895          * the SkinTemplate based skins, all other skins should directly echo it.
 896          *
 897          * Returns an empty string by default, if not changed by any hook function.
 898          */
 899         protected function afterContentHook() {
 900                 $data = '';
 901
 902                 if( wfRunHooks( 'SkinAfterContent', array( &$data ) ) ){
 903                         // adding just some spaces shouldn't toggle the output
 904                         // of the whole <div/>, so we use trim() here
 905                         if( trim( $data ) != '' ){
 906                                 // Doing this here instead of in the skins to
 907                                 // ensure that the div has the same ID in all
 908                                 // skins
 909                                 $data = "<div id='mw-data-after-content'>\n" .
 910                                         "\t$data\n" .
 911                                         "</div>\n";
 912                         }
 913                 } else {
 914                         wfDebug( "Hook SkinAfterContent changed output processing.\n" );
 915                 }
 916
 917                 return $data;
 918         }
 919
 920         /**
 921          * Generate debug data HTML for displaying at the bottom of the main content
 922          * area.
 923          * @return String HTML containing debug data, if enabled (otherwise empty).
 924          */
 925         protected function generateDebugHTML() {
 926                 global $wgShowDebug, $wgOut;
 927                 if ( $wgShowDebug ) {
 928                         $listInternals = $this->formatDebugHTML( $wgOut->mDebugtext );
 929                         return "\n<hr />\n<strong>Debug data:</strong><ul style=\"font-family:monospace;\" id=\"mw-debug-html\">" .
 930                                 $listInternals . "</ul>\n";
 931                 }
 932                 return '';
 933         }
 934
 935         private function formatDebugHTML( $debugText ) {
 936                 $lines = explode( "\n", $debugText );
 937                 $curIdent = 0;
 938                 $ret = '<li>';
 939                 foreach( $lines as $line ) {
 940                         $m = array();
 941                         $display = ltrim( $line );
 942                         $ident = strlen( $line ) - strlen( $display );
 943                         $diff = $ident - $curIdent;
 944
 945                         if ( $display == '' )
 946                                 $display = "\xc2\xa0";
 947
 948                         if ( !$ident && $diff < 0 && substr( $display, 0, 9 ) != 'Entering ' && substr( $display, 0, 8 ) != 'Exiting ' ) {
 949                                 $ident = $curIdent;
 950                                 $diff = 0;
 951                                 $display = '<span style="background:yellow;">' . htmlspecialchars( $display ) . '</span>';
 952                         } else {
 953                                 $display = htmlspecialchars( $display );
 954                         }
 955
 956                         if ( $diff < 0 )
 957                                 $ret .= str_repeat( "</li></ul>\n", -$diff ) . "</li><li>\n";
 958                         elseif ( $diff == 0 )
 959                                 $ret .= "</li><li>\n";
 960                         else
 961                                 $ret .= str_repeat( "<ul><li>\n", $diff );
 962                         $ret .= $display . "\n";
 963
 964                         $curIdent = $ident;
 965                 }
 966                 $ret .= str_repeat( '</li></ul>', $curIdent ) . '</li>';
 967                 return $ret;
 968         }
 969
 970         /**
 971          * This gets called shortly before the </body> tag.
 972          * @return String HTML to be put before </body>
 973          */
 974         function afterContent() {
 975                 $printfooter = "<div class=\"printfooter\">\n" . $this->printFooter() . "</div>\n";
 976                 return $printfooter . $this->generateDebugHTML() . $this->doAfterContent();
 977         }
 978
 979         /**
 980          * This gets called shortly before the </body> tag.
 981          * @return String HTML-wrapped JS code to be put before </body>
 982          */
 983         function bottomScripts() {
 984                 $bottomScriptText = "\n" . Html::inlineScript( 'if (window.runOnloadHook) runOnloadHook();' ) . "\n";
 985                 wfRunHooks( 'SkinAfterBottomScripts', array( $this, &$bottomScriptText ) );
 986                 return $bottomScriptText;
 987         }
 988
 989         /** @return string Retrievied from HTML text */
 990         function printSource() {
 991                 $url = htmlspecialchars( $this->mTitle->getFullURL() );
 992                 return wfMsg( 'retrievedfrom', '<a href="'.$url.'">'.$url.'</a>' );
 993         }
 994
 995         function printFooter() {
 996                 return "<p>" .  $this->printSource() .
 997                         "</p>\n\n<p>" . $this->pageStats() . "</p>\n";
 998         }
 999
1000         /** overloaded by derived classes */
1001         function doAfterContent() { return '</div></div>'; }
1002
1003         function pageTitleLinks() {
1004                 global $wgOut, $wgUser, $wgRequest, $wgLang;
1005
1006                 $oldid = $wgRequest->getVal( 'oldid' );
1007                 $diff = $wgRequest->getVal( 'diff' );
1008                 $action = $wgRequest->getText( 'action' );
1009
1010                 $s[] = $this->printableLink();
1011                 $disclaimer = $this->disclaimerLink(); # may be empty
1012                 if( $disclaimer ) {
1013                         $s[] = $disclaimer;
1014                 }
1015                 $privacy = $this->privacyLink(); # may be empty too
1016                 if( $privacy ) {
1017                         $s[] = $privacy;
1018                 }
1019
1020                 if ( $wgOut->isArticleRelated() ) {
1021                         if ( $this->mTitle->getNamespace() == NS_FILE ) {
1022                                 $name = $this->mTitle->getDBkey();
1023                                 $image = wfFindFile( $this->mTitle );
1024                                 if( $image ) {
1025                                         $link = htmlspecialchars( $image->getURL() );
1026                                         $style = $this->getInternalLinkAttributes( $link, $name );
1027                                         $s[] = "<a href=\"{$link}\"{$style}>{$name}</a>";
1028                                 }
1029                         }
1030                 }
1031                 if ( 'history' == $action || isset( $diff ) || isset( $oldid ) ) {
1032                         $s[] .= $this->link(
1033                                         $this->mTitle,
1034                                         wfMsg( 'currentrev' ),
1035                                         array(),
1036                                         array(),
1037                                         array( 'known', 'noclasses' )
1038                         );
1039                 }
1040
1041                 if ( $wgUser->getNewtalk() ) {
1042                         # do not show "You have new messages" text when we are viewing our
1043                         # own talk page
1044                         if( !$this->mTitle->equals( $wgUser->getTalkPage() ) ) {
1045                                 $tl = $this->link(
1046                                         $wgUser->getTalkPage(),
1047                                         wfMsgHtml( 'newmessageslink' ),
1048                                         array(),
1049                                         array( 'redirect' => 'no' ),
1050                                         array( 'known', 'noclasses' )
1051                                 );
1052
1053                                 $dl = $this->link(
1054                                         $wgUser->getTalkPage(),
1055                                         wfMsgHtml( 'newmessagesdifflink' ),
1056                                         array(),
1057                                         array( 'diff' => 'cur' ),
1058                                         array( 'known', 'noclasses' )
1059                                 );
1060                                 $s[] = '<strong>'. wfMsg( 'youhavenewmessages', $tl, $dl ) . '</strong>';
1061                                 # disable caching
1062                                 $wgOut->setSquidMaxage( 0 );
1063                                 $wgOut->enableClientCache( false );
1064                         }
1065                 }
1066
1067                 $undelete = $this->getUndeleteLink();
1068                 if( !empty( $undelete ) ) {
1069                         $s[] = $undelete;
1070                 }
1071                 return $wgLang->pipeList( $s );
1072         }
1073
1074         function getUndeleteLink() {
1075                 global $wgUser, $wgContLang, $wgLang, $wgRequest;
1076
1077                 $action = $wgRequest->getVal( 'action', 'view' );
1078
1079                 if ( $wgUser->isAllowed( 'deletedhistory' ) &&
1080                         ( $this->mTitle->getArticleId() == 0 || $action == 'history' ) ) {
1081                         $n = $this->mTitle->isDeleted();
1082                         if ( $n ) {
1083                                 if ( $wgUser->isAllowed( 'undelete' ) ) {
1084                                         $msg = 'thisisdeleted';
1085                                 } else {
1086                                         $msg = 'viewdeleted';
1087                                 }
1088                                 return wfMsg(
1089                                         $msg,
1090                                         $this->link(
1091                                                 SpecialPage::getTitleFor( 'Undelete', $this->mTitle->getPrefixedDBkey() ),
1092                                                 wfMsgExt( 'restorelink', array( 'parsemag', 'escape' ), $wgLang->formatNum( $n ) ),
1093                                                 array(),
1094                                                 array(),
1095                                                 array( 'known', 'noclasses' )
1096                                         )
1097                                 );
1098                         }
1099                 }
1100                 return '';
1101         }
1102
1103         function printableLink() {
1104                 global $wgOut, $wgFeedClasses, $wgRequest, $wgLang;
1105
1106                 $s = array();
1107
1108                 if ( !$wgOut->isPrintable() ) {
1109                         $printurl = $wgRequest->escapeAppendQuery( 'printable=yes' );
1110                         $s[] = "<a href=\"$printurl\" rel=\"alternate\">" . wfMsg( 'printableversion' ) . '</a>';
1111                 }
1112
1113                 if( $wgOut->isSyndicated() ) {
1114                         foreach( $wgFeedClasses as $format => $class ) {
1115                                 $feedurl = $wgRequest->escapeAppendQuery( "feed=$format" );
1116                                 $s[] = "<a href=\"$feedurl\" rel=\"alternate\" type=\"application/{$format}+xml\""
1117                                                 . " class=\"feedlink\">" . wfMsgHtml( "feed-$format" ) . "</a>";
1118                         }
1119                 }
1120                 return $wgLang->pipeList( $s );
1121         }
1122
1123         function pageTitle() {
1124                 global $wgOut;
1125                 $s = '<h1 class="pagetitle">' . $wgOut->getPageTitle() . '</h1>';
1126                 return $s;
1127         }
1128
1129         function pageSubtitle() {
1130                 global $wgOut;
1131
1132                 $sub = $wgOut->getSubtitle();
1133                 if ( '' == $sub ) {
1134                         global $wgExtraSubtitle;
1135                         $sub = wfMsgExt( 'tagline', 'parsemag' ) . $wgExtraSubtitle;
1136                 }
1137                 $subpages = $this->subPageSubtitle();
1138                 $sub .= !empty( $subpages ) ? "</p><p class='subpages'>$subpages" : '';
1139                 $s = "<p class='subtitle'>{$sub}</p>\n";
1140                 return $s;
1141         }
1142
1143         function subPageSubtitle() {
1144                 $subpages = '';
1145                 if( !wfRunHooks( 'SkinSubPageSubtitle', array( &$subpages ) ) )
1146                         return $subpages;
1147
1148                 global $wgOut;
1149                 if( $wgOut->isArticle() && MWNamespace::hasSubpages( $this->mTitle->getNamespace() ) ) {
1150                         $ptext = $this->mTitle->getPrefixedText();
1151                         if( preg_match( '/\//', $ptext ) ) {
1152                                 $links = explode( '/', $ptext );
1153                                 array_pop( $links );
1154                                 $c = 0;
1155                                 $growinglink = '';
1156                                 $display = '';
1157                                 foreach( $links as $link ) {
1158                                         $growinglink .= $link;
1159                                         $display .= $link;
1160                                         $linkObj = Title::newFromText( $growinglink );
1161                                         if( is_object( $linkObj ) && $linkObj->exists() ){
1162                                                 $getlink = $this->link(
1163                                                         $linkObj,
1164                                                         htmlspecialchars( $display ),
1165                                                         array(),
1166                                                         array(),
1167                                                         array( 'known', 'noclasses' )
1168                                                 );
1169                                                 $c++;
1170                                                 if( $c > 1 ) {
1171                                                         $subpages .= wfMsgExt( 'pipe-separator', 'escapenoentities' );
1172                                                 } else  {
1173                                                         $subpages .= '&lt; ';
1174                                                 }
1175                                                 $subpages .= $getlink;
1176                                                 $display = '';
1177                                         } else {
1178                                                 $display .= '/';
1179                                         }
1180                                         $growinglink .= '/';
1181                                 }
1182                         }
1183                 }
1184                 return $subpages;
1185         }
1186
1187         /**
1188          * Returns true if the IP should be shown in the header
1189          */
1190         function showIPinHeader() {
1191                 global $wgShowIPinHeader;
1192                 return $wgShowIPinHeader && session_id() != '';
1193         }
1194
1195         function nameAndLogin() {
1196                 global $wgUser, $wgLang, $wgContLang;
1197
1198                 $logoutPage = $wgContLang->specialPage( 'Userlogout' );
1199
1200                 $ret = '';
1201                 if ( $wgUser->isAnon() ) {
1202                         if( $this->showIPinHeader() ) {
1203                                 $name = wfGetIP();
1204
1205                                 $talkLink = $this->link( $wgUser->getTalkPage(),
1206                                         $wgLang->getNsText( NS_TALK ) );
1207
1208                                 $ret .= "$name ($talkLink)";
1209                         } else {
1210                                 $ret .= wfMsg( 'notloggedin' );
1211                         }
1212
1213                         $returnTo = $this->mTitle->getPrefixedDBkey();
1214                         $query = array();
1215                         if ( $logoutPage != $returnTo ) {
1216                                 $query['returnto'] = $returnTo;
1217                         }
1218
1219                         $loginlink = $wgUser->isAllowed( 'createaccount' )
1220                                 ? 'nav-login-createaccount'
1221                                 : 'login';
1222                         $ret .= "\n<br />" . $this->link(
1223                                 SpecialPage::getTitleFor( 'Userlogin' ),
1224                                 wfMsg( $loginlink ), array(), $query
1225                         );
1226                 } else {
1227                         $returnTo = $this->mTitle->getPrefixedDBkey();
1228                         $talkLink = $this->link( $wgUser->getTalkPage(),
1229                                 $wgLang->getNsText( NS_TALK ) );
1230
1231                         $ret .= $this->link( $wgUser->getUserPage(),
1232                                 htmlspecialchars( $wgUser->getName() ) );
1233                         $ret .= " ($talkLink)<br />";
1234                         $ret .= $wgLang->pipeList( array(
1235                                 $this->link(
1236                                         SpecialPage::getTitleFor( 'Userlogout' ), wfMsg( 'logout' ),
1237                                         array(), array( 'returnto' => $returnTo )
1238                                 ),
1239                                 $this->specialLink( 'preferences' ),
1240                         ) );
1241                 }
1242                 $ret = $wgLang->pipeList( array(
1243                         $ret,
1244                         $this->link(
1245                                 Title::newFromText( wfMsgForContent( 'helppage' ) ),
1246                                 wfMsg( 'help' )
1247                         ),
1248                 ) );
1249
1250                 return $ret;
1251         }
1252
1253         function getSearchLink() {
1254                 $searchPage = SpecialPage::getTitleFor( 'Search' );
1255                 return $searchPage->getLocalURL();
1256         }
1257
1258         function escapeSearchLink() {
1259                 return htmlspecialchars( $this->getSearchLink() );
1260         }
1261
1262         function searchForm() {
1263                 global $wgRequest, $wgUseTwoButtonsSearchForm;
1264                 $search = $wgRequest->getText( 'search' );
1265
1266                 $s = '<form id="searchform'.$this->searchboxes.'" name="search" class="inline" method="post" action="'
1267                   . $this->escapeSearchLink() . "\">\n"
1268                   . '<input type="text" id="searchInput'.$this->searchboxes.'" name="search" size="19" value="'
1269                   . htmlspecialchars( substr( $search, 0, 256 ) ) . "\" />\n"
1270                   . '<input type="submit" name="go" value="' . wfMsg( 'searcharticle' ) . '" />';
1271
1272                 if( $wgUseTwoButtonsSearchForm )
1273                         $s .= '&nbsp;<input type="submit" name="fulltext" value="' . wfMsg( 'searchbutton' ) . "\" />\n";
1274                 else
1275                         $s .= ' <a href="' . $this->escapeSearchLink() . '" rel="search">' . wfMsg( 'powersearch-legend' ) . "</a>\n";
1276
1277                 $s .= '</form>';
1278
1279                 // Ensure unique id's for search boxes made after the first
1280                 $this->searchboxes = $this->searchboxes == '' ? 2 : $this->searchboxes + 1;
1281
1282                 return $s;
1283         }
1284
1285         function topLinks() {
1286                 global $wgOut;
1287
1288                 $s = array(
1289                         $this->mainPageLink(),
1290                         $this->specialLink( 'recentchanges' )
1291                 );
1292
1293                 if ( $wgOut->isArticleRelated() ) {
1294                         $s[] = $this->editThisPage();
1295                         $s[] = $this->historyLink();
1296                 }
1297                 # Many people don't like this dropdown box
1298                 #$s[] = $this->specialPagesList();
1299
1300                 if( $this->variantLinks() ) {
1301                         $s[] = $this->variantLinks();
1302                 }
1303
1304                 if( $this->extensionTabLinks() ) {
1305                         $s[] = $this->extensionTabLinks();
1306                 }
1307
1308                 // FIXME: Is using Language::pipeList impossible here? Do not quite understand the use of the newline
1309                 return implode( $s, wfMsgExt( 'pipe-separator', 'escapenoentities' ) . "\n" );
1310         }
1311
1312         /**
1313          * Compatibility for extensions adding functionality through tabs.
1314          * Eventually these old skins should be replaced with SkinTemplate-based
1315          * versions, sigh...
1316          * @return string
1317          */
1318         function extensionTabLinks() {
1319                 $tabs = array();
1320                 $out = '';
1321                 $s = array();
1322                 wfRunHooks( 'SkinTemplateTabs', array( $this, &$tabs ) );
1323                 foreach( $tabs as $tab ) {
1324                         $s[] = Xml::element( 'a',
1325                                 array( 'href' => $tab['href'] ),
1326                                 $tab['text'] );
1327                 }
1328
1329                 if( count( $s ) ) {
1330                         global $wgLang;
1331
1332                         $out = wfMsgExt( 'pipe-separator' , 'escapenoentities' );
1333                         $out .= $wgLang->pipeList( $s );
1334                 }
1335
1336                 return $out;
1337         }
1338
1339         /**
1340          * Language/charset variant links for classic-style skins
1341          * @return string
1342          */
1343         function variantLinks() {
1344                 $s = '';
1345                 /* show links to different language variants */
1346                 global $wgDisableLangConversion, $wgLang, $wgContLang;
1347                 $variants = $wgContLang->getVariants();
1348                 if( !$wgDisableLangConversion && sizeof( $variants ) > 1 ) {
1349                         foreach( $variants as $code ) {
1350                                 $varname = $wgContLang->getVariantname( $code );
1351                                 if( $varname == 'disable' )
1352                                         continue;
1353                                 $s = $wgLang->pipeList( array(
1354                                         $s,
1355                                         '<a href="' . $this->mTitle->escapeLocalUrl( 'variant=' . $code ) . '">' . htmlspecialchars( $varname ) . '</a>'
1356                                 ) );
1357                         }
1358                 }
1359                 return $s;
1360         }
1361
1362         function bottomLinks() {
1363                 global $wgOut, $wgUser, $wgUseTrackbacks;
1364                 $sep = wfMsgExt( 'pipe-separator', 'escapenoentities' ) . "\n";
1365
1366                 $s = '';
1367                 if ( $wgOut->isArticleRelated() ) {
1368                         $element[] = '<strong>' . $this->editThisPage() . '</strong>';
1369                         if ( $wgUser->isLoggedIn() ) {
1370                                 $element[] = $this->watchThisPage();
1371                         }
1372                         $element[] = $this->talkLink();
1373                         $element[] = $this->historyLink();
1374                         $element[] = $this->whatLinksHere();
1375                         $element[] = $this->watchPageLinksLink();
1376
1377                         if( $wgUseTrackbacks )
1378                                 $element[] = $this->trackbackLink();
1379
1380                         if ( $this->mTitle->getNamespace() == NS_USER
1381                             || $this->mTitle->getNamespace() == NS_USER_TALK ){
1382                                 $id = User::idFromName( $this->mTitle->getText() );
1383                                 $ip = User::isIP( $this->mTitle->getText() );
1384
1385                                 if( $id || $ip ) { # both anons and non-anons have contri list
1386                                         $element[] = $this->userContribsLink();
1387                                 }
1388                                 if( $this->showEmailUser( $id ) ) {
1389                                         $element[] = $this->emailUserLink();
1390                                 }
1391                         }
1392
1393                         $s = implode( $element, $sep );
1394
1395                         if ( $this->mTitle->getArticleId() ) {
1396                                 $s .= "\n<br />";
1397                                 if( $wgUser->isAllowed( 'delete' ) ) { $s .= $this->deleteThisPage(); }
1398                                 if( $wgUser->isAllowed( 'protect' ) ) { $s .= $sep . $this->protectThisPage(); }
1399                                 if( $wgUser->isAllowed( 'move' ) ) { $s .= $sep . $this->moveThisPage(); }
1400                         }
1401                         $s .= "<br />\n" . $this->otherLanguages();
1402                 }
1403
1404                 return $s;
1405         }
1406
1407         function pageStats() {
1408                 global $wgOut, $wgLang, $wgArticle, $wgRequest, $wgUser;
1409                 global $wgDisableCounters, $wgMaxCredits, $wgShowCreditsIfMax, $wgPageShowWatchingUsers;
1410
1411                 $oldid = $wgRequest->getVal( 'oldid' );
1412                 $diff = $wgRequest->getVal( 'diff' );
1413                 if ( ! $wgOut->isArticle() ) { return ''; }
1414                 if( !$wgArticle instanceOf Article ) { return ''; }
1415                 if ( isset( $oldid ) || isset( $diff ) ) { return ''; }
1416                 if ( 0 == $wgArticle->getID() ) { return ''; }
1417
1418                 $s = '';
1419                 if ( !$wgDisableCounters ) {
1420                         $count = $wgLang->formatNum( $wgArticle->getCount() );
1421                         if ( $count ) {
1422                                 $s = wfMsgExt( 'viewcount', array( 'parseinline' ), $count );
1423                         }
1424                 }
1425
1426                 if( $wgMaxCredits != 0 ){
1427                         $s .= ' ' . Credits::getCredits( $wgArticle, $wgMaxCredits, $wgShowCreditsIfMax );
1428                 } else {
1429                         $s .= $this->lastModified();
1430                 }
1431
1432                 if( $wgPageShowWatchingUsers && $wgUser->getOption( 'shownumberswatching' ) ) {
1433                         $dbr = wfGetDB( DB_SLAVE );
1434                         $res = $dbr->select( 'watchlist',
1435                                 array( 'COUNT(*) AS n' ),
1436                                 array( 'wl_title' => $dbr->strencode( $this->mTitle->getDBkey() ), 'wl_namespace' => $this->mTitle->getNamespace() ),
1437                                 __METHOD__
1438                         );
1439                         $x = $dbr->fetchObject( $res );
1440
1441                         $s .= ' ' . wfMsgExt( 'number_of_watching_users_pageview',
1442                                 array( 'parseinline' ), $wgLang->formatNum( $x->n )
1443                         );
1444                 }
1445
1446                 return $s . ' ' .  $this->getCopyright();
1447         }
1448
1449         function getCopyright( $type = 'detect' ) {
1450                 global $wgRightsPage, $wgRightsUrl, $wgRightsText, $wgRequest, $wgArticle;
1451
1452                 if ( $type == 'detect' ) {
1453                         $diff = $wgRequest->getVal( 'diff' );
1454                         $isCur = $wgArticle && $wgArticle->isCurrent();
1455                         if ( is_null( $diff ) && !$isCur && wfMsgForContent( 'history_copyright' ) !== '-' ) {
1456                                 $type = 'history';
1457                         } else {
1458                                 $type = 'normal';
1459                         }
1460                 }
1461
1462                 if ( $type == 'history' ) {
1463                         $msg = 'history_copyright';
1464                 } else {
1465                         $msg = 'copyright';
1466                 }
1467
1468                 $out = '';
1469                 if( $wgRightsPage ) {
1470                         $title = Title::newFromText( $wgRightsPage );
1471                         $link = $this->linkKnown( $title, $wgRightsText );
1472                 } elseif( $wgRightsUrl ) {
1473                         $link = $this->makeExternalLink( $wgRightsUrl, $wgRightsText );
1474                 } elseif( $wgRightsText ) {
1475                         $link = $wgRightsText;
1476                 } else {
1477                         # Give up now
1478                         return $out;
1479                 }
1480                 // Allow for site and per-namespace customization of copyright notice.
1481                 if( isset($wgArticle) )
1482                         wfRunHooks( 'SkinCopyrightFooter', array( $wgArticle->getTitle(), $type, &$msg, &$link ) );
1483
1484                 $out .= wfMsgForContent( $msg, $link );
1485                 return $out;
1486         }
1487
1488         function getCopyrightIcon() {
1489                 global $wgRightsUrl, $wgRightsText, $wgRightsIcon, $wgCopyrightIcon;
1490                 $out = '';
1491                 if ( isset( $wgCopyrightIcon ) && $wgCopyrightIcon ) {
1492                         $out = $wgCopyrightIcon;
1493                 } else if ( $wgRightsIcon ) {
1494                         $icon = htmlspecialchars( $wgRightsIcon );
1495                         if ( $wgRightsUrl ) {
1496                                 $url = htmlspecialchars( $wgRightsUrl );
1497                                 $out .= '<a href="'.$url.'">';
1498                         }
1499                         $text = htmlspecialchars( $wgRightsText );
1500                         $out .= "<img src=\"$icon\" alt=\"$text\" width=\"88\" height=\"31\" />";
1501                         if ( $wgRightsUrl ) {
1502                                 $out .= '</a>';
1503                         }
1504                 }
1505                 return $out;
1506         }
1507
1508         function getPoweredBy() {
1509                 global $wgStylePath;
1510                 $url = htmlspecialchars( "$wgStylePath/common/images/poweredby_mediawiki_88x31.png" );
1511                 $img = '<a href="http://www.mediawiki.org/"><img src="'.$url.'" height="31" width="88" alt="Powered by MediaWiki" /></a>';
1512                 return $img;
1513         }
1514
1515         function lastModified() {
1516                 global $wgLang, $wgArticle;
1517                 if( $this->mRevisionId && $this->mRevisionId != $wgArticle->getLatest()) {
1518                         $timestamp = Revision::getTimestampFromId( $wgArticle->getTitle(), $this->mRevisionId );
1519                 } else {
1520                         $timestamp = $wgArticle->getTimestamp();
1521                 }
1522                 if ( $timestamp ) {
1523                         $d = $wgLang->date( $timestamp, true );
1524                         $t = $wgLang->time( $timestamp, true );
1525                         $s = ' ' . wfMsg( 'lastmodifiedat', $d, $t );
1526                 } else {
1527                         $s = '';
1528                 }
1529                 if ( wfGetLB()->getLaggedSlaveMode() ) {
1530                         $s .= ' <strong>' . wfMsg( 'laggedslavemode' ) . '</strong>';
1531                 }
1532                 return $s;
1533         }
1534
1535         function logoText( $align = '' ) {
1536                 if ( '' != $align ) {
1537                         $a = " align='{$align}'";
1538                 } else {
1539                         $a = '';
1540                 }
1541
1542                 $mp = wfMsg( 'mainpage' );
1543                 $mptitle = Title::newMainPage();
1544                 $url = ( is_object( $mptitle ) ? $mptitle->escapeLocalURL() : '' );
1545
1546                 $logourl = $this->getLogo();
1547                 $s = "<a href='{$url}'><img{$a} src='{$logourl}' alt='[{$mp}]' /></a>";
1548                 return $s;
1549         }
1550
1551         /**
1552          * show a drop-down box of special pages
1553          */
1554         function specialPagesList() {
1555                 global $wgUser, $wgContLang, $wgServer, $wgRedirectScript;
1556                 $pages = array_merge( SpecialPage::getRegularPages(), SpecialPage::getRestrictedPages() );
1557                 foreach ( $pages as $name => $page ) {
1558                         $pages[$name] = $page->getDescription();
1559                 }
1560
1561                 $go = wfMsg( 'go' );
1562                 $sp = wfMsg( 'specialpages' );
1563                 $spp = $wgContLang->specialPage( 'Specialpages' );
1564
1565                 $s = '<form id="specialpages" method="get" ' .
1566                   'action="' . htmlspecialchars( "{$wgServer}{$wgRedirectScript}" ) . "\">\n";
1567                 $s .= "<select name=\"wpDropdown\">\n";
1568                 $s .= "<option value=\"{$spp}\">{$sp}</option>\n";
1569
1570
1571                 foreach ( $pages as $name => $desc ) {
1572                         $p = $wgContLang->specialPage( $name );
1573                         $s .= "<option value=\"{$p}\">{$desc}</option>\n";
1574                 }
1575                 $s .= "</select>\n";
1576                 $s .= "<input type='submit' value=\"{$go}\" name='redirect' />\n";
1577                 $s .= "</form>\n";
1578                 return $s;
1579         }
1580
1581         function mainPageLink() {
1582                 $s = $this->link(
1583                         Title::newMainPage(),
1584                         wfMsg( 'mainpage' ),
1585                         array(),
1586                         array(),
1587                         array( 'known', 'noclasses' )
1588                 );
1589                 return $s;
1590         }
1591
1592         private function footerLink ( $desc, $page ) {
1593                 // if the link description has been set to "-" in the default language,
1594                 if ( wfMsgForContent( $desc )  == '-') {
1595                         // then it is disabled, for all languages.
1596                         return '';
1597                 } else {
1598                         // Otherwise, we display the link for the user, described in their
1599                         // language (which may or may not be the same as the default language),
1600                         // but we make the link target be the one site-wide page.
1601                         $title = Title::newFromText( wfMsgForContent( $page ) );
1602                         return $this->linkKnown(
1603                                 $title,
1604                                 wfMsgExt( $desc, array( 'parsemag', 'escapenoentities' ) )
1605                         );
1606                 }
1607         }
1608
1609         function privacyLink() {
1610                 return $this->footerLink( 'privacy', 'privacypage' );
1611         }
1612
1613         function aboutLink() {
1614                 return $this->footerLink( 'aboutsite', 'aboutpage' );
1615         }
1616
1617         function disclaimerLink() {
1618                 return $this->footerLink( 'disclaimers', 'disclaimerpage' );
1619         }
1620
1621         function editThisPage() {
1622                 global $wgOut;
1623
1624                 if ( !$wgOut->isArticleRelated() ) {
1625                         $s = wfMsg( 'protectedpage' );
1626                 } else {
1627                         if( $this->mTitle->quickUserCan( 'edit' ) && $this->mTitle->exists() ) {
1628                                 $t = wfMsg( 'editthispage' );
1629                         } elseif( $this->mTitle->quickUserCan( 'create' ) && !$this->mTitle->exists() ) {
1630                                 $t = wfMsg( 'create-this-page' );
1631                         } else {
1632                                 $t = wfMsg( 'viewsource' );
1633                         }
1634
1635                         $s = $this->link(
1636                                 $this->mTitle,
1637                                 $t,
1638                                 array(),
1639                                 $this->editUrlOptions(),
1640                                 array( 'known', 'noclasses' )
1641                         );
1642                 }
1643                 return $s;
1644         }
1645
1646         /**
1647          * Return URL options for the 'edit page' link.
1648          * This may include an 'oldid' specifier, if the current page view is such.
1649          *
1650          * @return array
1651          * @private
1652          */
1653         function editUrlOptions() {
1654                 global $wgArticle;
1655
1656                 $options = array( 'action' => 'edit' );
1657
1658                 if( $this->mRevisionId && ! $wgArticle->isCurrent() ) {
1659                         $options['oldid'] = intval( $this->mRevisionId );
1660                 }
1661
1662                 return $options;
1663         }
1664
1665         function deleteThisPage() {
1666                 global $wgUser, $wgRequest;
1667
1668                 $diff = $wgRequest->getVal( 'diff' );
1669                 if ( $this->mTitle->getArticleId() && ( !$diff ) && $wgUser->isAllowed( 'delete' ) ) {
1670                         $t = wfMsg( 'deletethispage' );
1671
1672                         $s = $this->link(
1673                                 $this->mTitle,
1674                                 $t,
1675                                 array(),
1676                                 array( 'action' => 'delete' ),
1677                                 array( 'known', 'noclasses' )
1678                         );
1679                 } else {
1680                         $s = '';
1681                 }
1682                 return $s;
1683         }
1684
1685         function protectThisPage() {
1686                 global $wgUser, $wgRequest;
1687
1688                 $diff = $wgRequest->getVal( 'diff' );
1689                 if ( $this->mTitle->getArticleId() && ( ! $diff ) && $wgUser->isAllowed('protect') ) {
1690                         if ( $this->mTitle->isProtected() ) {
1691                                 $text = wfMsg( 'unprotectthispage' );
1692                                 $query = array( 'action' => 'unprotect' );
1693                         } else {
1694                                 $text = wfMsg( 'protectthispage' );
1695                                 $query = array( 'action' => 'protect' );
1696                         }
1697
1698                         $s = $this->link(
1699                                 $this->mTitle,
1700                                 $text,
1701                                 array(),
1702                                 $query,
1703                                 array( 'known', 'noclasses' )
1704                         );
1705                 } else {
1706                         $s = '';
1707                 }
1708                 return $s;
1709         }
1710
1711         function watchThisPage() {
1712                 global $wgOut;
1713                 ++$this->mWatchLinkNum;
1714
1715                 if ( $wgOut->isArticleRelated() ) {
1716                         if ( $this->mTitle->userIsWatching() ) {
1717                                 $text = wfMsg( 'unwatchthispage' );
1718                                 $query = array( 'action' => 'unwatch' );
1719                                 $id = 'mw-unwatch-link' . $this->mWatchLinkNum;
1720                         } else {
1721                                 $text = wfMsg( 'watchthispage' );
1722                                 $query = array( 'action' => 'watch' );
1723                                 $id = 'mw-watch-link' . $this->mWatchLinkNum;
1724                         }
1725
1726                         $s = $this->link(
1727                                 $this->mTitle,
1728                                 $text,
1729                                 array( 'id' => $id ),
1730                                 $query,
1731                                 array( 'known', 'noclasses' )
1732                         );
1733                 } else {
1734                         $s = wfMsg( 'notanarticle' );
1735                 }
1736                 return $s;
1737         }
1738
1739         function moveThisPage() {
1740                 if ( $this->mTitle->quickUserCan( 'move' ) ) {
1741                         return $this->link(
1742                                 SpecialPage::getTitleFor( 'Movepage' ),
1743                                 wfMsg( 'movethispage' ),
1744                                 array(),
1745                                 array( 'target' => $this->mTitle->getPrefixedDBkey() ),
1746                                 array( 'known', 'noclasses' )
1747                         );
1748                 } else {
1749                         // no message if page is protected - would be redundant
1750                         return '';
1751                 }
1752         }
1753
1754         function historyLink() {
1755                 return $this->link(
1756                         $this->mTitle,
1757                         wfMsgHtml( 'history' ),
1758                         array( 'rel' => 'archives' ),
1759                         array( 'action' => 'history' )
1760                 );
1761         }
1762
1763         function whatLinksHere() {
1764                 return $this->link(
1765                         SpecialPage::getTitleFor( 'Whatlinkshere', $this->mTitle->getPrefixedDBkey() ),
1766                         wfMsgHtml( 'whatlinkshere' ),
1767                         array(),
1768                         array(),
1769                         array( 'known', 'noclasses' )
1770                 );
1771         }
1772
1773         function userContribsLink() {
1774                 return $this->link(
1775                         SpecialPage::getTitleFor( 'Contributions', $this->mTitle->getDBkey() ),
1776                         wfMsgHtml( 'contributions' ),
1777                         array(),
1778                         array(),
1779                         array( 'known', 'noclasses' )
1780                 );
1781         }
1782
1783         function showEmailUser( $id ) {
1784                 global $wgUser;
1785                 $targetUser = User::newFromId( $id );
1786                 return  $wgUser->canSendEmail() && # the sending user must have a confirmed email address
1787                         $targetUser->canReceiveEmail(); # the target user must have a confirmed email address and allow emails from users
1788         }
1789
1790         function emailUserLink() {
1791                 return $this->link(
1792                         SpecialPage::getTitleFor( 'Emailuser', $this->mTitle->getDBkey() ),
1793                         wfMsg( 'emailuser' ),
1794                         array(),
1795                         array(),
1796                         array( 'known', 'noclasses' )
1797                 );
1798         }
1799
1800         function watchPageLinksLink() {
1801                 global $wgOut;
1802                 if ( ! $wgOut->isArticleRelated() ) {
1803                         return '(' . wfMsg( 'notanarticle' ) . ')';
1804                 } else {
1805                         return $this->link(
1806                                 SpecialPage::getTitleFor( 'Recentchangeslinked', $this->mTitle->getPrefixedDBkey() ),
1807                                 wfMsg( 'recentchangeslinked-toolbox' ),
1808                                 array(),
1809                                 array(),
1810                                 array( 'known', 'noclasses' )
1811                         );
1812                 }
1813         }
1814
1815         function trackbackLink() {
1816                 return '<a href="' . $this->mTitle->trackbackURL() . '">'
1817                         . wfMsg( 'trackbacklink' ) . '</a>';
1818         }
1819
1820         function otherLanguages() {
1821                 global $wgOut, $wgContLang, $wgHideInterlanguageLinks;
1822
1823                 if ( $wgHideInterlanguageLinks ) {
1824                         return '';
1825                 }
1826
1827                 $a = $wgOut->getLanguageLinks();
1828                 if ( 0 == count( $a ) ) {
1829                         return '';
1830                 }
1831
1832                 $s = wfMsg( 'otherlanguages' ) . wfMsg( 'colon-separator' );
1833                 $first = true;
1834                 if( $wgContLang->isRTL() ) $s .= '<span dir="LTR">';
1835                 foreach( $a as $l ) {
1836                         if ( !$first ) {
1837                                 $s .= wfMsgExt( 'pipe-separator', 'escapenoentities' );
1838                         }
1839                         $first = false;
1840
1841                         $nt = Title::newFromText( $l );
1842                         $url = $nt->escapeFullURL();
1843                         $text = $wgContLang->getLanguageName( $nt->getInterwiki() );
1844
1845                         if ( '' == $text ) { $text = $l; }
1846                         $style = $this->getExternalLinkAttributes();
1847                         $s .= "<a href=\"{$url}\"{$style}>{$text}</a>";
1848                 }
1849                 if( $wgContLang->isRTL() ) $s .= '</span>';
1850                 return $s;
1851         }
1852
1853         function talkLink() {
1854                 if ( NS_SPECIAL == $this->mTitle->getNamespace() ) {
1855                         # No discussion links for special pages
1856                         return '';
1857                 }
1858
1859                 $linkOptions = array();
1860
1861                 if( $this->mTitle->isTalkPage() ) {
1862                         $link = $this->mTitle->getSubjectPage();
1863                         switch( $link->getNamespace() ) {
1864                                 case NS_MAIN:
1865                                         $text = wfMsg( 'articlepage' );
1866                                         break;
1867                                 case NS_USER:
1868                                         $text = wfMsg( 'userpage' );
1869                                         break;
1870                                 case NS_PROJECT:
1871                                         $text = wfMsg( 'projectpage' );
1872                                         break;
1873                                 case NS_FILE:
1874                                         $text = wfMsg( 'imagepage' );
1875                                         # Make link known if image exists, even if the desc. page doesn't.
1876                                         if( wfFindFile( $link ) )
1877                                                 $linkOptions[] = 'known';
1878                                         break;
1879                                 case NS_MEDIAWIKI:
1880                                         $text = wfMsg( 'mediawikipage' );
1881                                         break;
1882                                 case NS_TEMPLATE:
1883                                         $text = wfMsg( 'templatepage' );
1884                                         break;
1885                                 case NS_HELP:
1886                                         $text = wfMsg( 'viewhelppage' );
1887                                         break;
1888                                 case NS_CATEGORY:
1889                                         $text = wfMsg( 'categorypage' );
1890                                         break;
1891                                 default:
1892                                         $text = wfMsg( 'articlepage' );
1893                         }
1894                 } else {
1895                         $link = $this->mTitle->getTalkPage();
1896                         $text = wfMsg( 'talkpage' );
1897                 }
1898
1899                 $s = $this->link( $link, $text, array(), array(), $linkOptions );
1900
1901                 return $s;
1902         }
1903
1904         function commentLink() {
1905                 global $wgOut;
1906
1907                 if ( $this->mTitle->getNamespace() == NS_SPECIAL ) {
1908                         return '';
1909                 }
1910
1911                 # __NEWSECTIONLINK___ changes behaviour here
1912                 # If it is present, the link points to this page, otherwise
1913                 # it points to the talk page
1914                 if( $this->mTitle->isTalkPage() ) {
1915                         $title = $this->mTitle;
1916                 } elseif( $wgOut->showNewSectionLink() ) {
1917                         $title = $this->mTitle;
1918                 } else {
1919                         $title = $this->mTitle->getTalkPage();
1920                 }
1921
1922                 return $this->link(
1923                         $title,
1924                         wfMsg( 'postcomment' ),
1925                         array(),
1926                         array(
1927                                 'action' => 'edit',
1928                                 'section' => 'new'
1929                         ),
1930                         array( 'known', 'noclasses' )
1931                 );
1932         }
1933
1934         /* these are used extensively in SkinTemplate, but also some other places */
1935         static function makeMainPageUrl( $urlaction = '' ) {
1936                 $title = Title::newMainPage();
1937                 self::checkTitle( $title, '' );
1938                 return $title->getLocalURL( $urlaction );
1939         }
1940
1941         static function makeSpecialUrl( $name, $urlaction = '' ) {
1942                 $title = SpecialPage::getTitleFor( $name );
1943                 return $title->getLocalURL( $urlaction );
1944         }
1945
1946         static function makeSpecialUrlSubpage( $name, $subpage, $urlaction = '' ) {
1947                 $title = SpecialPage::getSafeTitleFor( $name, $subpage );
1948                 return $title->getLocalURL( $urlaction );
1949         }
1950
1951         static function makeI18nUrl( $name, $urlaction = '' ) {
1952                 $title = Title::newFromText( wfMsgForContent( $name ) );
1953                 self::checkTitle( $title, $name );
1954                 return $title->getLocalURL( $urlaction );
1955         }
1956
1957         static function makeUrl( $name, $urlaction = '' ) {
1958                 $title = Title::newFromText( $name );
1959                 self::checkTitle( $title, $name );
1960                 return $title->getLocalURL( $urlaction );
1961         }
1962
1963         # If url string starts with http, consider as external URL, else
1964         # internal
1965         static function makeInternalOrExternalUrl( $name ) {
1966                 if ( preg_match( '/^(?:' . wfUrlProtocols() . ')/', $name ) ) {
1967                         return $name;
1968                 } else {
1969                         return self::makeUrl( $name );
1970                 }
1971         }
1972
1973         # this can be passed the NS number as defined in Language.php
1974         static function makeNSUrl( $name, $urlaction = '', $namespace = NS_MAIN ) {
1975                 $title = Title::makeTitleSafe( $namespace, $name );
1976                 self::checkTitle( $title, $name );
1977                 return $title->getLocalURL( $urlaction );
1978         }
1979
1980         /* these return an array with the 'href' and boolean 'exists' */
1981         static function makeUrlDetails( $name, $urlaction = '' ) {
1982                 $title = Title::newFromText( $name );
1983                 self::checkTitle( $title, $name );
1984                 return array(
1985                         'href' => $title->getLocalURL( $urlaction ),
1986                         'exists' => $title->getArticleID() != 0 ? true : false
1987                 );
1988         }
1989
1990         /**
1991          * Make URL details where the article exists (or at least it's convenient to think so)
1992          */
1993         static function makeKnownUrlDetails( $name, $urlaction = '' ) {
1994                 $title = Title::newFromText( $name );
1995                 self::checkTitle( $title, $name );
1996                 return array(
1997                         'href' => $title->getLocalURL( $urlaction ),
1998                         'exists' => true
1999                 );
2000         }
2001
2002         # make sure we have some title to operate on
2003         static function checkTitle( &$title, $name ) {
2004                 if( !is_object( $title ) ) {
2005                         $title = Title::newFromText( $name );
2006                         if( !is_object( $title ) ) {
2007                                 $title = Title::newFromText( '--error: link target missing--' );
2008                         }
2009                 }
2010         }
2011
2012         /**
2013          * Build an array that represents the sidebar(s), the navigation bar among them
2014          *
2015          * @return array
2016          */
2017         function buildSidebar() {
2018                 global $parserMemc, $wgEnableSidebarCache, $wgSidebarCacheExpiry;
2019                 global $wgLang;
2020                 wfProfileIn( __METHOD__ );
2021
2022                 $key = wfMemcKey( 'sidebar', $wgLang->getCode() );
2023
2024                 if ( $wgEnableSidebarCache ) {
2025                         $cachedsidebar = $parserMemc->get( $key );
2026                         if ( $cachedsidebar ) {
2027                                 wfProfileOut( __METHOD__ );
2028                                 return $cachedsidebar;
2029                         }
2030                 }
2031
2032                 $bar = array();
2033                 $lines = explode( "\n", wfMsgForContent( 'sidebar' ) );
2034                 $heading = '';
2035                 foreach( $lines as $line ) {
2036                         if( strpos( $line, '*' ) !== 0 )
2037                                 continue;
2038                         if( strpos( $line, '**') !== 0 ) {
2039                                 $heading = trim( $line, '* ' );
2040                                 if( !array_key_exists( $heading, $bar ) ) $bar[$heading] = array();
2041                         } else {
2042                                 if( strpos( $line, '|' ) !== false ) { // sanity check
2043                                         $line = array_map( 'trim', explode( '|', trim( $line, '* ' ), 2 ) );
2044                                         $link = wfMsgForContent( $line[0] );
2045                                         if( $link == '-' )
2046                                                 continue;
2047
2048                                         $text = wfMsgExt( $line[1], 'parsemag' );
2049                                         if( wfEmptyMsg( $line[1], $text ) )
2050                                                 $text = $line[1];
2051                                         if( wfEmptyMsg( $line[0], $link ) )
2052                                                 $link = $line[0];
2053
2054                                         if ( preg_match( '/^(?:' . wfUrlProtocols() . ')/', $link ) ) {
2055                                                 $href = $link;
2056                                         } else {
2057                                                 $title = Title::newFromText( $link );
2058                                                 if ( $title ) {
2059                                                         $title = $title->fixSpecialName();
2060                                                         $href = $title->getLocalURL();
2061                                                 } else {
2062                                                         $href = 'INVALID-TITLE';
2063                                                 }
2064                                         }
2065
2066                                         $bar[$heading][] = array(
2067                                                 'text' => $text,
2068                                                 'href' => $href,
2069                                                 'id' => 'n-' . strtr( $line[1], ' ', '-' ),
2070                                                 'active' => false
2071                                         );
2072                                 } else { continue; }
2073                         }
2074                 }
2075                 wfRunHooks( 'SkinBuildSidebar', array( $this, &$bar ) );
2076                 if ( $wgEnableSidebarCache ) $parserMemc->set( $key, $bar, $wgSidebarCacheExpiry );
2077                 wfProfileOut( __METHOD__ );
2078                 return $bar;
2079         }
2080
2081         /**
2082          * Should we include common/wikiprintable.css?  Skins that have their own
2083          * print stylesheet should override this and return false.  (This is an
2084          * ugly hack to get Monobook to play nicely with
2085          * OutputPage::headElement().)
2086          *
2087          * @return bool
2088          */
2089         public function commonPrintStylesheet() {
2090                 return true;
2091         }
2092 }