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