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