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