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