includes/Skin.php

   1 <?php
   2 /**
   3  * @defgroup Skins Skins
   4  */
   5
   6 if ( !defined( 'MEDIAWIKI' ) ) {
   7         die( 1 );
   8 }
   9
  10 /**
  11  * The main skin class that provide methods and properties for all other skins.
  12  * This base class is also the "Standard" skin.
  13  *
  14  * See docs/skin.txt for more information.
  15  *
  16  * @ingroup Skins
  17  */
  18 abstract class Skin extends Linker {
  19         /**#@+
  20          * @private
  21          */
  22         var $mWatchLinkNum = 0; // Appended to end of watch link id's
  23         /**#@-*/
  24         protected $mRevisionId; // The revision ID we're looking at, null if not applicable.
  25         protected $skinname = 'standard';
  26         // @todo Fixme: should be protected :-\
  27         var $mTitle = null;
  28         protected $mRelevantTitle = null;
  29         protected $mRelevantUser = null;
  30
  31         /** Constructor, call parent constructor */
  32         function __construct() {
  33                 parent::__construct();
  34         }
  35
  36         /**
  37          * Fetch the set of available skins.
  38          * @return array of strings
  39          */
  40         static function getSkinNames() {
  41                 global $wgValidSkinNames;
  42                 static $skinsInitialised = false;
  43
  44                 if ( !$skinsInitialised || !count( $wgValidSkinNames ) ) {
  45                         # Get a list of available skins
  46                         # Build using the regular expression '^(.*).php$'
  47                         # Array keys are all lower case, array value keep the case used by filename
  48                         #
  49                         wfProfileIn( __METHOD__ . '-init' );
  50
  51                         global $wgStyleDirectory;
  52
  53                         $skinDir = dir( $wgStyleDirectory );
  54
  55                         # while code from www.php.net
  56                         while ( false !== ( $file = $skinDir->read() ) ) {
  57                                 // Skip non-PHP files, hidden files, and '.dep' includes
  58                                 $matches = array();
  59
  60                                 if ( preg_match( '/^([^.]*)\.php$/', $file, $matches ) ) {
  61                                         $aSkin = $matches[1];
  62                                         $wgValidSkinNames[strtolower( $aSkin )] = $aSkin;
  63                                 }
  64                         }
  65                         $skinDir->close();
  66                         $skinsInitialised = true;
  67                         wfProfileOut( __METHOD__ . '-init' );
  68                 }
  69                 return $wgValidSkinNames;
  70         }
  71
  72         /**
  73          * Fetch the list of usable skins in regards to $wgSkipSkins.
  74          * Useful for Special:Preferences and other places where you
  75          * only want to show skins users _can_ use.
  76          * @return array of strings
  77          */
  78         public static function getUsableSkins() {
  79                 global $wgSkipSkins;
  80
  81                 $usableSkins = self::getSkinNames();
  82
  83                 foreach ( $wgSkipSkins as $skip ) {
  84                         unset( $usableSkins[$skip] );
  85                 }
  86
  87                 return $usableSkins;
  88         }
  89
  90         /**
  91          * Normalize a skin preference value to a form that can be loaded.
  92          * If a skin can't be found, it will fall back to the configured
  93          * default (or the old 'Classic' skin if that's broken).
  94          * @param $key String: 'monobook', 'standard', etc.
  95          * @return string
  96          */
  97         static function normalizeKey( $key ) {
  98                 global $wgDefaultSkin;
  99
 100                 $skinNames = Skin::getSkinNames();
 101
 102                 if ( $key == '' ) {
 103                         // Don't return the default immediately;
 104                         // in a misconfiguration we need to fall back.
 105                         $key = $wgDefaultSkin;
 106                 }
 107
 108                 if ( isset( $skinNames[$key] ) ) {
 109                         return $key;
 110                 }
 111
 112                 // Older versions of the software used a numeric setting
 113                 // in the user preferences.
 114                 $fallback = array(
 115                         0 => $wgDefaultSkin,
 116                         1 => 'nostalgia',
 117                         2 => 'cologneblue'
 118                 );
 119
 120                 if ( isset( $fallback[$key] ) ) {
 121                         $key = $fallback[$key];
 122                 }
 123
 124                 if ( isset( $skinNames[$key] ) ) {
 125                         return $key;
 126                 } else if ( isset( $skinNames[$wgDefaultSkin] ) ) {
 127                         return $wgDefaultSkin;
 128                 } else {
 129                         return 'vector';
 130                 }
 131         }
 132
 133         /**
 134          * Factory method for loading a skin of a given type
 135          * @param $key String: 'monobook', 'standard', etc.
 136          * @return Skin
 137          */
 138         static function &newFromKey( $key ) {
 139                 global $wgStyleDirectory;
 140
 141                 $key = Skin::normalizeKey( $key );
 142
 143                 $skinNames = Skin::getSkinNames();
 144                 $skinName = $skinNames[$key];
 145                 $className = "Skin{$skinName}";
 146
 147                 # Grab the skin class and initialise it.
 148                 if ( !class_exists( $className ) ) {
 149                         // Preload base classes to work around APC/PHP5 bug
 150                         $deps = "{$wgStyleDirectory}/{$skinName}.deps.php";
 151
 152                         if ( file_exists( $deps ) ) {
 153                                 include_once( $deps );
 154                         }
 155                         require_once( "{$wgStyleDirectory}/{$skinName}.php" );
 156
 157                         # Check if we got if not failback to default skin
 158                         if ( !class_exists( $className ) ) {
 159                                 # DO NOT die if the class isn't found. This breaks maintenance
 160                                 # scripts and can cause a user account to be unrecoverable
 161                                 # except by SQL manipulation if a previously valid skin name
 162                                 # is no longer valid.
 163                                 wfDebug( "Skin class does not exist: $className\n" );
 164                                 $className = 'SkinVector';
 165                                 require_once( "{$wgStyleDirectory}/Vector.php" );
 166                         }
 167                 }
 168                 $skin = new $className;
 169                 return $skin;
 170         }
 171
 172         /** @return string path to the skin stylesheet */
 173         function getStylesheet() {
 174                 return 'common/wikistandard.css';
 175         }
 176
 177         /** @return string skin name */
 178         public function getSkinName() {
 179                 return $this->skinname;
 180         }
 181
 182         function initPage( OutputPage $out ) {
 183                 global $wgFavicon, $wgAppleTouchIcon, $wgEnableAPI;
 184
 185                 wfProfileIn( __METHOD__ );
 186
 187                 # Generally the order of the favicon and apple-touch-icon links
 188                 # should not matter, but Konqueror (3.5.9 at least) incorrectly
 189                 # uses whichever one appears later in the HTML source. Make sure
 190                 # apple-touch-icon is specified first to avoid this.
 191                 if ( false !== $wgAppleTouchIcon ) {
 192                         $out->addLink( array( 'rel' => 'apple-touch-icon', 'href' => $wgAppleTouchIcon ) );
 193                 }
 194
 195                 if ( false !== $wgFavicon ) {
 196                         $out->addLink( array( 'rel' => 'shortcut icon', 'href' => $wgFavicon ) );
 197                 }
 198
 199                 # OpenSearch description link
 200                 $out->addLink( array(
 201                         'rel' => 'search',
 202                         'type' => 'application/opensearchdescription+xml',
 203                         'href' => wfScript( 'opensearch_desc' ),
 204                         'title' => wfMsgForContent( 'opensearch-desc' ),
 205                 ) );
 206
 207                 if ( $wgEnableAPI ) {
 208                         # Real Simple Discovery link, provides auto-discovery information
 209                         # for the MediaWiki API (and potentially additional custom API
 210                         # support such as WordPress or Twitter-compatible APIs for a
 211                         # blogging extension, etc)
 212                         $out->addLink( array(
 213                                 'rel' => 'EditURI',
 214                                 'type' => 'application/rsd+xml',
 215                                 'href' => wfExpandUrl( wfAppendQuery( wfScript( 'api' ), array( 'action' => 'rsd' ) ) ),
 216                         ) );
 217                 }
 218
 219                 $this->addMetadataLinks( $out );
 220
 221                 $this->mRevisionId = $out->mRevisionId;
 222
 223                 $this->preloadExistence();
 224
 225                 wfProfileOut( __METHOD__ );
 226         }
 227
 228         /**
 229          * Preload the existence of three commonly-requested pages in a single query
 230          */
 231         function preloadExistence() {
 232                 global $wgUser;
 233
 234                 // User/talk link
 235                 $titles = array( $wgUser->getUserPage(), $wgUser->getTalkPage() );
 236
 237                 // Other tab link
 238                 if ( $this->mTitle->getNamespace() == NS_SPECIAL ) {
 239                         // nothing
 240                 } elseif ( $this->mTitle->isTalkPage() ) {
 241                         $titles[] = $this->mTitle->getSubjectPage();
 242                 } else {
 243                         $titles[] = $this->mTitle->getTalkPage();
 244                 }
 245
 246                 $lb = new LinkBatch( $titles );
 247                 $lb->setCaller( __METHOD__ );
 248                 $lb->execute();
 249         }
 250
 251         /**
 252          * Adds metadata links below to the HTML output.
 253          * <ol>
 254          *  <li>Creative Commons
 255          *   <br />See http://wiki.creativecommons.org/Extend_Metadata.
 256          *  </li>
 257          *  <li>Dublin Core</li>
 258          *  <li>Use hreflang to specify canonical and alternate links
 259          *   <br />See http://www.google.com/support/webmasters/bin/answer.py?answer=189077
 260          *  </li>
 261          *  <li>Copyright</li>
 262          * <ol>
 263          *
 264          * @param $out Object: instance of OutputPage
 265          */
 266         function addMetadataLinks( OutputPage $out ) {
 267                 global $wgEnableDublinCoreRdf, $wgEnableCreativeCommonsRdf;
 268                 global $wgDisableLangConversion, $wgCanonicalLanguageLinks, $wgContLang;
 269                 global $wgRightsPage, $wgRightsUrl;
 270
 271                 if ( $out->isArticleRelated() ) {
 272                         # note: buggy CC software only reads first "meta" link
 273                         if ( $wgEnableCreativeCommonsRdf ) {
 274                                 $out->addMetadataLink( array(
 275                                         'title' => 'Creative Commons',
 276                                         'type' => 'application/rdf+xml',
 277                                         'href' => $this->mTitle->getLocalURL( 'action=creativecommons' ) )
 278                                 );
 279                         }
 280
 281                         if ( $wgEnableDublinCoreRdf ) {
 282                                 $out->addMetadataLink( array(
 283                                         'title' => 'Dublin Core',
 284                                         'type' => 'application/rdf+xml',
 285                                         'href' => $this->mTitle->getLocalURL( 'action=dublincore' ) )
 286                                 );
 287                         }
 288                 }
 289
 290                 if ( !$wgDisableLangConversion && $wgCanonicalLanguageLinks
 291                         && $wgContLang->hasVariants() ) {
 292
 293                         $urlvar = $wgContLang->getURLVariant();
 294
 295                         if ( !$urlvar ) {
 296                                 $variants = $wgContLang->getVariants();
 297                                 foreach ( $variants as $_v ) {
 298                                         $out->addLink( array(
 299                                                 'rel' => 'alternate',
 300                                                 'hreflang' => $_v,
 301                                                 'href' => $this->mTitle->getLocalURL( '', $_v ) )
 302                                         );
 303                                 }
 304                         } else {
 305                                 $out->addLink( array(
 306                                         'rel' => 'canonical',
 307                                         'href' => $this->mTitle->getFullURL() )
 308                                 );
 309                         }
 310                 }
 311
 312                 $copyright = '';
 313                 if ( $wgRightsPage ) {
 314                         $copy = Title::newFromText( $wgRightsPage );
 315
 316                         if ( $copy ) {
 317                                 $copyright = $copy->getLocalURL();
 318                         }
 319                 }
 320
 321                 if ( !$copyright && $wgRightsUrl ) {
 322                         $copyright = $wgRightsUrl;
 323                 }
 324
 325                 if ( $copyright ) {
 326                         $out->addLink( array(
 327                                 'rel' => 'copyright',
 328                                 'href' => $copyright )
 329                         );
 330                 }
 331         }
 332
 333         /**
 334          * Set some local variables
 335          */
 336         protected function setMembers() {
 337                 global $wgUser;
 338                 $this->mUser = $wgUser;
 339                 $this->userpage = $wgUser->getUserPage()->getPrefixedText();
 340                 $this->usercss = false;
 341         }
 342
 343         /**
 344          * Whether the revision displayed is the latest revision of the page
 345          *
 346          * @return Boolean
 347          */
 348         public function isRevisionCurrent() {
 349                 return $this->mRevisionId == 0 || $this->mRevisionId == $this->mTitle->getLatestRevID();
 350         }
 351
 352         /**
 353          * Set the title
 354          * @param $t Title object to use
 355          */
 356         public function setTitle( $t ) {
 357                 $this->mTitle = $t;
 358         }
 359
 360         /** Get the title */
 361         public function getTitle() {
 362                 return $this->mTitle;
 363         }
 364
 365         /**
 366          * Set the "relevant" title
 367          * @see self::getRelevantTitle()
 368          * @param $t Title object to use
 369          */
 370         public function setRelevantTitle( $t ) {
 371                 $this->mRelevantTitle = $t;
 372         }
 373
 374         /**
 375          * Return the "relevant" title.
 376          * A "relevant" title is not necessarily the actual title of the page.
 377          * Special pages like Special:MovePage use set the page they are acting on
 378          * as their "relevant" title, this allows the skin system to display things
 379          * such as content tabs which belong to to that page instead of displaying
 380          * a basic special page tab which has almost no meaning.
 381          */
 382         public function getRelevantTitle() {
 383                 if ( isset($this->mRelevantTitle) ) {
 384                         return $this->mRelevantTitle;
 385                 }
 386                 return $this->mTitle;
 387         }
 388
 389         /**
 390          * Set the "relevant" user
 391          * @see self::getRelevantUser()
 392          * @param $u User object to use
 393          */
 394         public function setRelevantUser( $u ) {
 395                 $this->mRelevantUser = $u;
 396         }
 397
 398         /**
 399          * Return the "relevant" user.
 400          * A "relevant" user is similar to a relevant title. Special pages like
 401          * Special:Contributions mark the user which they are relevant to so that
 402          * things like the toolbox can display the information they usually are only
 403          * able to display on a user's userpage and talkpage.
 404          */
 405         public function getRelevantUser() {
 406                 if ( isset($this->mRelevantUser) ) {
 407                         return $this->mRelevantUser;
 408                 }
 409                 $title = $this->getRelevantTitle();
 410                 if( $title->getNamespace() == NS_USER || $title->getNamespace() == NS_USER_TALK ) {
 411                         $rootUser = strtok( $title->getText(), '/' );
 412                         if ( User::isIP( $rootUser ) ) {
 413                                 $this->mRelevantUser = User::newFromName( $rootUser, false );
 414                         } else {
 415                                 $user = User::newFromName( $rootUser );
 416                                 if ( $user->isLoggedIn() ) {
 417                                         $this->mRelevantUser = $user;
 418                                 }
 419                         }
 420                         return $this->mRelevantUser;
 421                 }
 422                 return null;
 423         }
 424
 425         /**
 426          * Outputs the HTML generated by other functions.
 427          * @param $out Object: instance of OutputPage
 428          * @todo Exterminate!
 429          */
 430         function outputPage( OutputPage $out ) {
 431                 global $wgDebugComments;
 432                 wfProfileIn( __METHOD__ );
 433
 434                 $this->setMembers();
 435                 $this->initPage( $out );
 436
 437                 // See self::afterContentHook() for documentation
 438                 $afterContent = $this->afterContentHook();
 439
 440                 $out->out( $out->headElement( $this ) );
 441
 442                 if ( $wgDebugComments ) {
 443                         $out->out( "<!-- Debug output:\n" .
 444                           $out->mDebugtext . "-->\n" );
 445                 }
 446
 447                 $out->out( $this->beforeContent() );
 448
 449                 $out->out( $out->mBodytext . "\n" );
 450
 451                 $out->out( $this->afterContent() );
 452
 453                 $out->out( $afterContent );
 454
 455                 $out->out( $this->bottomScripts( $out ) );
 456
 457                 $out->out( wfReportTime() );
 458
 459                 $out->out( "\n</body></html>" );
 460                 wfProfileOut( __METHOD__ );
 461         }
 462
 463         static function makeVariablesScript( $data ) {
 464                 if ( $data ) {
 465                         return Html::inlineScript(
 466                                 ResourceLoader::makeLoaderConditionalScript( ResourceLoader::makeConfigSetScript( $data ) )
 467                         );
 468                 } else {
 469                         return '';
 470                 }
 471         }
 472
 473         /**
 474          * To make it harder for someone to slip a user a fake
 475          * user-JavaScript or user-CSS preview, a random token
 476          * is associated with the login session. If it's not
 477          * passed back with the preview request, we won't render
 478          * the code.
 479          *
 480          * @param $action String: 'edit', 'submit' etc.
 481          * @return bool
 482          */
 483         public function userCanPreview( $action ) {
 484                 global $wgRequest, $wgUser;
 485
 486                 if ( $action != 'submit' ) {
 487                         return false;
 488                 }
 489                 if ( !$wgRequest->wasPosted() ) {
 490                         return false;
 491                 }
 492                 if ( !$this->mTitle->userCanEditCssSubpage() ) {
 493                         return false;
 494                 }
 495                 if ( !$this->mTitle->userCanEditJsSubpage() ) {
 496                         return false;
 497                 }
 498
 499                 return $wgUser->matchEditToken(
 500                         $wgRequest->getVal( 'wpEditToken' ) );
 501         }
 502
 503         /**
 504          * Generated JavaScript action=raw&gen=js
 505          * This returns MediaWiki:Common.js and MediaWiki:[Skinname].js concate-
 506          * nated together.  For some bizarre reason, it does *not* return any
 507          * custom user JS from subpages.  Huh?
 508          *
 509          * There's absolutely no reason to have separate Monobook/Common JSes.
 510          * Any JS that cares can just check the skin variable generated at the
 511          * top.  For now Monobook.js will be maintained, but it should be consi-
 512          * dered deprecated.
 513          *
 514          * @param $skinName String: If set, overrides the skin name
 515          * @return string
 516          */
 517         public function generateUserJs( $skinName = null ) {
 518
 519                 // Stub - see ResourceLoaderSiteModule, CologneBlue, Simple and Standard skins override this
 520
 521                 return '';
 522         }
 523
 524         /**
 525          * Generate user stylesheet for action=raw&gen=css
 526          */
 527         public function generateUserStylesheet() {
 528
 529                 // Stub - see ResourceLoaderUserModule, CologneBlue, Simple and Standard skins override this
 530
 531                 return '';
 532         }
 533
 534         /**
 535          * Split for easier subclassing in SkinSimple, SkinStandard and SkinCologneBlue
 536          * Anything in here won't be generated if $wgAllowUserCssPrefs is false.
 537          */
 538         protected function reallyGenerateUserStylesheet() {
 539
 540                 // Stub - see  ResourceLoaderUserModule, CologneBlue, Simple and Standard skins override this
 541
 542                 return '';
 543         }
 544
 545         /**
 546          * @private
 547          */
 548         function setupUserCss( OutputPage $out ) {
 549                 global $wgRequest;
 550                 global $wgUseSiteCss, $wgAllowUserCss, $wgAllowUserCssPrefs;
 551
 552                 wfProfileIn( __METHOD__ );
 553
 554                 $this->setupSkinUserCss( $out );
 555                 // Add any extension CSS
 556                 foreach ( $out->getExtStyle() as $url ) {
 557                         $out->addStyle( $url );
 558                 }
 559
 560                 // Per-site custom styles
 561                 if ( $wgUseSiteCss ) {
 562                         $out->addModuleStyles( 'site' );
 563                 }
 564
 565                 // Per-user custom styles
 566                 if ( $wgAllowUserCss ) {
 567                         if ( $this->mTitle->isCssSubpage() && $this->userCanPreview( $wgRequest->getVal( 'action' ) ) ) {
 568                                 // @FIXME: properly escape the cdata!
 569                                 $out->addInlineStyle( $wgRequest->getText( 'wpTextbox1' ) );
 570                         } else {
 571                                 $out->addModuleStyles( 'user' );
 572                         }
 573                 }
 574
 575                 // Per-user preference styles
 576                 if ( $wgAllowUserCssPrefs ) {
 577                         $out->addModuleStyles( 'user.options' );
 578                 }
 579
 580                 wfProfileOut( __METHOD__ );
 581         }
 582
 583         /**
 584          * Get the query to generate a dynamic stylesheet
 585          *
 586          * @return array
 587          */
 588         public static function getDynamicStylesheetQuery() {
 589                 global $wgSquidMaxage;
 590
 591                 return array(
 592                                 'action' => 'raw',
 593                                 'maxage' => $wgSquidMaxage,
 594                                 'usemsgcache' => 'yes',
 595                                 'ctype' => 'text/css',
 596                                 'smaxage' => $wgSquidMaxage,
 597                         );
 598         }
 599
 600         /**
 601          * Add skin specific stylesheets
 602          * @param $out OutputPage
 603          * @delete
 604          */
 605         abstract function setupSkinUserCss( OutputPage $out );
 606
 607         function getPageClasses( $title ) {
 608                 $numeric = 'ns-' . $title->getNamespace();
 609
 610                 if ( $title->getNamespace() == NS_SPECIAL ) {
 611                         $type = 'ns-special';
 612                         // bug 23315: provide a class based on the canonical special page name without subpages
 613                         list( $canonicalName ) = SpecialPage::resolveAliasWithSubpage( $title->getDBkey() );
 614                         if ( $canonicalName ) {
 615                                 $type .= ' ' . Sanitizer::escapeClass( "mw-special-$canonicalName" );
 616                         } else {
 617                                 $type .= ' mw-invalidspecialpage';
 618                         }
 619                 } elseif ( $title->isTalkPage() ) {
 620                         $type = 'ns-talk';
 621                 } else {
 622                         $type = 'ns-subject';
 623                 }
 624
 625                 $name = Sanitizer::escapeClass( 'page-' . $title->getPrefixedText() );
 626
 627                 return "$numeric $type $name";
 628         }
 629
 630         /**
 631          * This will be called by OutputPage::headElement when it is creating the
 632          * <body> tag, skins can override it if they have a need to add in any
 633          * body attributes or classes of their own.
 634          */
 635         function addToBodyAttributes( $out, &$bodyAttrs ) {
 636                 // does nothing by default
 637         }
 638
 639         /**
 640          * URL to the logo
 641          */
 642         function getLogo() {
 643                 global $wgLogo;
 644                 return $wgLogo;
 645         }
 646
 647         function getCategoryLinks() {
 648                 global $wgOut, $wgUseCategoryBrowser;
 649                 global $wgContLang, $wgUser;
 650
 651                 if ( count( $wgOut->mCategoryLinks ) == 0 ) {
 652                         return '';
 653                 }
 654
 655                 # Separator
 656                 $sep = wfMsgExt( 'catseparator', array( 'parsemag', 'escapenoentities' ) );
 657
 658                 // Use Unicode bidi embedding override characters,
 659                 // to make sure links don't smash each other up in ugly ways.
 660                 $dir = $wgContLang->getDir();
 661                 $embed = "<span dir='$dir'>";
 662                 $pop = '</span>';
 663
 664                 $allCats = $wgOut->getCategoryLinks();
 665                 $s = '';
 666                 $colon = wfMsgExt( 'colon-separator', 'escapenoentities' );
 667
 668                 if ( !empty( $allCats['normal'] ) ) {
 669                         $t = $embed . implode( "{$pop} {$sep} {$embed}" , $allCats['normal'] ) . $pop;
 670
 671                         $msg = wfMsgExt( 'pagecategories', array( 'parsemag', 'escapenoentities' ), count( $allCats['normal'] ) );
 672                         $s .= '<div id="mw-normal-catlinks">' .
 673                                 $this->link( Title::newFromText( wfMsgForContent( 'pagecategorieslink' ) ), $msg )
 674                                 . $colon . $t . '</div>';
 675                 }
 676
 677                 # Hidden categories
 678                 if ( isset( $allCats['hidden'] ) ) {
 679                         if ( $wgUser->getBoolOption( 'showhiddencats' ) ) {
 680                                 $class = 'mw-hidden-cats-user-shown';
 681                         } elseif ( $this->mTitle->getNamespace() == NS_CATEGORY ) {
 682                                 $class = 'mw-hidden-cats-ns-shown';
 683                         } else {
 684                                 $class = 'mw-hidden-cats-hidden';
 685                         }
 686
 687                         $s .= "<div id=\"mw-hidden-catlinks\" class=\"$class\">" .
 688                                 wfMsgExt( 'hidden-categories', array( 'parsemag', 'escapenoentities' ), count( $allCats['hidden'] ) ) .
 689                                 $colon . $embed . implode( "$pop $sep $embed", $allCats['hidden'] ) . $pop .
 690                                 '</div>';
 691                 }
 692
 693                 # optional 'dmoz-like' category browser. Will be shown under the list
 694                 # of categories an article belong to
 695                 if ( $wgUseCategoryBrowser ) {
 696                         $s .= '<br /><hr />';
 697
 698                         # get a big array of the parents tree
 699                         $parenttree = $this->mTitle->getParentCategoryTree();
 700                         # Skin object passed by reference cause it can not be
 701                         # accessed under the method subfunction drawCategoryBrowser
 702                         $tempout = explode( "\n", $this->drawCategoryBrowser( $parenttree, $this ) );
 703                         # Clean out bogus first entry and sort them
 704                         unset( $tempout[0] );
 705                         asort( $tempout );
 706                         # Output one per line
 707                         $s .= implode( "<br />\n", $tempout );
 708                 }
 709
 710                 return $s;
 711         }
 712
 713         /**
 714          * Render the array as a serie of links.
 715          * @param $tree Array: categories tree returned by Title::getParentCategoryTree
 716          * @param &skin Object: skin passed by reference
 717          * @return String separated by &gt;, terminate with "\n"
 718          */
 719         function drawCategoryBrowser( $tree, &$skin ) {
 720                 $return = '';
 721
 722                 foreach ( $tree as $element => $parent ) {
 723                         if ( empty( $parent ) ) {
 724                                 # element start a new list
 725                                 $return .= "\n";
 726                         } else {
 727                                 # grab the others elements
 728                                 $return .= $this->drawCategoryBrowser( $parent, $skin ) . ' &gt; ';
 729                         }
 730
 731                         # add our current element to the list
 732                         $eltitle = Title::newFromText( $element );
 733                         $return .=  $skin->link( $eltitle, $eltitle->getText() );
 734                 }
 735
 736                 return $return;
 737         }
 738
 739         function getCategories() {
 740                 $catlinks = $this->getCategoryLinks();
 741
 742                 $classes = 'catlinks';
 743
 744                 global $wgOut, $wgUser;
 745
 746                 // Check what we're showing
 747                 $allCats = $wgOut->getCategoryLinks();
 748                 $showHidden = $wgUser->getBoolOption( 'showhiddencats' ) ||
 749                                                 $this->mTitle->getNamespace() == NS_CATEGORY;
 750
 751                 if ( empty( $allCats['normal'] ) && !( !empty( $allCats['hidden'] ) && $showHidden ) ) {
 752                         $classes .= ' catlinks-allhidden';
 753                 }
 754
 755                 return "<div id='catlinks' class='$classes'>{$catlinks}</div>";
 756         }
 757
 758         /**
 759          * This runs a hook to allow extensions placing their stuff after content
 760          * and article metadata (e.g. categories).
 761          * Note: This function has nothing to do with afterContent().
 762          *
 763          * This hook is placed here in order to allow using the same hook for all
 764          * skins, both the SkinTemplate based ones and the older ones, which directly
 765          * use this class to get their data.
 766          *
 767          * The output of this function gets processed in SkinTemplate::outputPage() for
 768          * the SkinTemplate based skins, all other skins should directly echo it.
 769          *
 770          * Returns an empty string by default, if not changed by any hook function.
 771          */
 772         protected function afterContentHook() {
 773                 $data = '';
 774
 775                 if ( wfRunHooks( 'SkinAfterContent', array( &$data, $this ) ) ) {
 776                         // adding just some spaces shouldn't toggle the output
 777                         // of the whole <div/>, so we use trim() here
 778                         if ( trim( $data ) != '' ) {
 779                                 // Doing this here instead of in the skins to
 780                                 // ensure that the div has the same ID in all
 781                                 // skins
 782                                 $data = "<div id='mw-data-after-content'>\n" .
 783                                         "\t$data\n" .
 784                                         "</div>\n";
 785                         }
 786                 } else {
 787                         wfDebug( "Hook SkinAfterContent changed output processing.\n" );
 788                 }
 789
 790                 return $data;
 791         }
 792
 793         /**
 794          * Generate debug data HTML for displaying at the bottom of the main content
 795          * area.
 796          * @return String HTML containing debug data, if enabled (otherwise empty).
 797          */
 798         protected function generateDebugHTML() {
 799                 global $wgShowDebug, $wgOut;
 800
 801                 if ( $wgShowDebug ) {
 802                         $listInternals = $this->formatDebugHTML( $wgOut->mDebugtext );
 803                         return "\n<hr />\n<strong>Debug data:</strong><ul style=\"font-family:monospace;\" id=\"mw-debug-html\">" .
 804                                 $listInternals . "</ul>\n";
 805                 }
 806
 807                 return '';
 808         }
 809
 810         private function formatDebugHTML( $debugText ) {
 811                 $lines = explode( "\n", $debugText );
 812                 $curIdent = 0;
 813                 $ret = '<li>';
 814
 815                 foreach ( $lines as $line ) {
 816                         $display = ltrim( $line );
 817                         $ident = strlen( $line ) - strlen( $display );
 818                         $diff = $ident - $curIdent;
 819
 820                         if ( $display == '' ) {
 821                                 $display = "\xc2\xa0";
 822                         }
 823
 824                         if ( !$ident && $diff < 0 && substr( $display, 0, 9 ) != 'Entering ' && substr( $display, 0, 8 ) != 'Exiting ' ) {
 825                                 $ident = $curIdent;
 826                                 $diff = 0;
 827                                 $display = '<span style="background:yellow;">' . htmlspecialchars( $display ) . '</span>';
 828                         } else {
 829                                 $display = htmlspecialchars( $display );
 830                         }
 831
 832                         if ( $diff < 0 ) {
 833                                 $ret .= str_repeat( "</li></ul>\n", -$diff ) . "</li><li>\n";
 834                         } elseif ( $diff == 0 ) {
 835                                 $ret .= "</li><li>\n";
 836                         } else {
 837                                 $ret .= str_repeat( "<ul><li>\n", $diff );
 838                         }
 839                         $ret .= $display . "\n";
 840
 841                         $curIdent = $ident;
 842                 }
 843
 844                 $ret .= str_repeat( '</li></ul>', $curIdent ) . '</li>';
 845
 846                 return $ret;
 847         }
 848
 849         /**
 850          * This gets called shortly before the </body> tag.
 851          * @param $out OutputPage object
 852          * @return String HTML-wrapped JS code to be put before </body>
 853          */
 854         function bottomScripts( $out ) {
 855                 $bottomScriptText = "\n" . $out->getHeadScripts( $this );
 856                 wfRunHooks( 'SkinAfterBottomScripts', array( $this, &$bottomScriptText ) );
 857
 858                 return $bottomScriptText;
 859         }
 860
 861         /** @return string Retrievied from HTML text */
 862         function printSource() {
 863                 $url = htmlspecialchars( $this->mTitle->getFullURL() );
 864                 return wfMsg( 'retrievedfrom', '<a href="' . $url . '">' . $url . '</a>' );
 865         }
 866
 867         function getUndeleteLink() {
 868                 global $wgUser, $wgLang, $wgRequest;
 869
 870                 $action = $wgRequest->getVal( 'action', 'view' );
 871
 872                 if ( $wgUser->isAllowed( 'deletedhistory' ) &&
 873                         ( $this->mTitle->getArticleId() == 0 || $action == 'history' ) ) {
 874                         $n = $this->mTitle->isDeleted();
 875
 876                         if ( $n ) {
 877                                 if ( $wgUser->isAllowed( 'undelete' ) ) {
 878                                         $msg = 'thisisdeleted';
 879                                 } else {
 880                                         $msg = 'viewdeleted';
 881                                 }
 882
 883                                 return wfMsg(
 884                                         $msg,
 885                                         $this->link(
 886                                                 SpecialPage::getTitleFor( 'Undelete', $this->mTitle->getPrefixedDBkey() ),
 887                                                 wfMsgExt( 'restorelink', array( 'parsemag', 'escape' ), $wgLang->formatNum( $n ) ),
 888                                                 array(),
 889                                                 array(),
 890                                                 array( 'known', 'noclasses' )
 891                                         )
 892                                 );
 893                         }
 894                 }
 895
 896                 return '';
 897         }
 898
 899         function subPageSubtitle() {
 900                 $subpages = '';
 901
 902                 if ( !wfRunHooks( 'SkinSubPageSubtitle', array( &$subpages, $this ) ) ) {
 903                         return $subpages;
 904                 }
 905
 906                 global $wgOut;
 907
 908                 if ( $wgOut->isArticle() && MWNamespace::hasSubpages( $this->mTitle->getNamespace() ) ) {
 909                         $ptext = $this->mTitle->getPrefixedText();
 910                         if ( preg_match( '/\//', $ptext ) ) {
 911                                 $links = explode( '/', $ptext );
 912                                 array_pop( $links );
 913                                 $c = 0;
 914                                 $growinglink = '';
 915                                 $display = '';
 916
 917                                 foreach ( $links as $link ) {
 918                                         $growinglink .= $link;
 919                                         $display .= $link;
 920                                         $linkObj = Title::newFromText( $growinglink );
 921
 922                                         if ( is_object( $linkObj ) && $linkObj->exists() ) {
 923                                                 $getlink = $this->link(
 924                                                         $linkObj,
 925                                                         htmlspecialchars( $display ),
 926                                                         array(),
 927                                                         array(),
 928                                                         array( 'known', 'noclasses' )
 929                                                 );
 930
 931                                                 $c++;
 932
 933                                                 if ( $c > 1 ) {
 934                                                         $subpages .= wfMsgExt( 'pipe-separator', 'escapenoentities' );
 935                                                 } else  {
 936                                                         $subpages .= '&lt; ';
 937                                                 }
 938
 939                                                 $subpages .= $getlink;
 940                                                 $display = '';
 941                                         } else {
 942                                                 $display .= '/';
 943                                         }
 944                                         $growinglink .= '/';
 945                                 }
 946                         }
 947                 }
 948
 949                 return $subpages;
 950         }
 951
 952         /**
 953          * Returns true if the IP should be shown in the header
 954          */
 955         function showIPinHeader() {
 956                 global $wgShowIPinHeader;
 957                 return $wgShowIPinHeader && session_id() != '';
 958         }
 959
 960         function getSearchLink() {
 961                 $searchPage = SpecialPage::getTitleFor( 'Search' );
 962                 return $searchPage->getLocalURL();
 963         }
 964
 965         function escapeSearchLink() {
 966                 return htmlspecialchars( $this->getSearchLink() );
 967         }
 968
 969         function getCopyright( $type = 'detect' ) {
 970                 global $wgRightsPage, $wgRightsUrl, $wgRightsText, $wgRequest;
 971
 972                 if ( $type == 'detect' ) {
 973                         $diff = $wgRequest->getVal( 'diff' );
 974
 975                         if ( is_null( $diff ) && !$this->isRevisionCurrent() && wfMsgForContent( 'history_copyright' ) !== '-' ) {
 976                                 $type = 'history';
 977                         } else {
 978                                 $type = 'normal';
 979                         }
 980                 }
 981
 982                 if ( $type == 'history' ) {
 983                         $msg = 'history_copyright';
 984                 } else {
 985                         $msg = 'copyright';
 986                 }
 987
 988                 $out = '';
 989
 990                 if ( $wgRightsPage ) {
 991                         $title = Title::newFromText( $wgRightsPage );
 992                         $link = $this->linkKnown( $title, $wgRightsText );
 993                 } elseif ( $wgRightsUrl ) {
 994                         $link = $this->makeExternalLink( $wgRightsUrl, $wgRightsText );
 995                 } elseif ( $wgRightsText ) {
 996                         $link = $wgRightsText;
 997                 } else {
 998                         # Give up now
 999                         return $out;
1000                 }
1001
1002                 // Allow for site and per-namespace customization of copyright notice.
1003                 $forContent = true;
1004
1005                 wfRunHooks( 'SkinCopyrightFooter', array( $this->mTitle, $type, &$msg, &$link, &$forContent ) );
1006
1007                 if ( $forContent ) {
1008                         $out .= wfMsgForContent( $msg, $link );
1009                 } else {
1010                         $out .= wfMsg( $msg, $link );
1011                 }
1012
1013                 return $out;
1014         }
1015
1016         function getCopyrightIcon() {
1017                 global $wgRightsUrl, $wgRightsText, $wgRightsIcon, $wgCopyrightIcon;
1018
1019                 $out = '';
1020
1021                 if ( isset( $wgCopyrightIcon ) && $wgCopyrightIcon ) {
1022                         $out = $wgCopyrightIcon;
1023                 } elseif ( $wgRightsIcon ) {
1024                         $icon = htmlspecialchars( $wgRightsIcon );
1025
1026                         if ( $wgRightsUrl ) {
1027                                 $url = htmlspecialchars( $wgRightsUrl );
1028                                 $out .= '<a href="' . $url . '">';
1029                         }
1030
1031                         $text = htmlspecialchars( $wgRightsText );
1032                         $out .= "<img src=\"$icon\" alt=\"$text\" width=\"88\" height=\"31\" />";
1033
1034                         if ( $wgRightsUrl ) {
1035                                 $out .= '</a>';
1036                         }
1037                 }
1038
1039                 return $out;
1040         }
1041
1042         /**
1043          * Gets the powered by MediaWiki icon.
1044          * @return string
1045          */
1046         function getPoweredBy() {
1047                 global $wgStylePath;
1048
1049                 $url = htmlspecialchars( "$wgStylePath/common/images/poweredby_mediawiki_88x31.png" );
1050                 $text = '<a href="http://www.mediawiki.org/"><img src="' . $url . '" height="31" width="88" alt="Powered by MediaWiki" /></a>';
1051                 wfRunHooks( 'SkinGetPoweredBy', array( &$text, $this ) );
1052                 return $text;
1053         }
1054
1055         /**
1056          * Get the timestamp of the latest revision, formatted in user language
1057          *
1058          * @param $article Article object. Used if we're working with the current revision
1059          * @return String
1060          */
1061         protected function lastModified( $article ) {
1062                 global $wgLang;
1063
1064                 if ( !$this->isRevisionCurrent() ) {
1065                         $timestamp = Revision::getTimestampFromId( $this->mTitle, $this->mRevisionId );
1066                 } else {
1067                         $timestamp = $article->getTimestamp();
1068                 }
1069
1070                 if ( $timestamp ) {
1071                         $d = $wgLang->date( $timestamp, true );
1072                         $t = $wgLang->time( $timestamp, true );
1073                         $s = ' ' . wfMsg( 'lastmodifiedat', $d, $t );
1074                 } else {
1075                         $s = '';
1076                 }
1077
1078                 if ( wfGetLB()->getLaggedSlaveMode() ) {
1079                         $s .= ' <strong>' . wfMsg( 'laggedslavemode' ) . '</strong>';
1080                 }
1081
1082                 return $s;
1083         }
1084
1085         function logoText( $align = '' ) {
1086                 if ( $align != '' ) {
1087                         $a = " align='{$align}'";
1088                 } else {
1089                         $a = '';
1090                 }
1091
1092                 $mp = wfMsg( 'mainpage' );
1093                 $mptitle = Title::newMainPage();
1094                 $url = ( is_object( $mptitle ) ? $mptitle->escapeLocalURL() : '' );
1095
1096                 $logourl = $this->getLogo();
1097                 $s = "<a href='{$url}'><img{$a} src='{$logourl}' alt='[{$mp}]' /></a>";
1098
1099                 return $s;
1100         }
1101
1102         /**
1103          * Renders a $wgFooterIcons icon acording to the method's arguments
1104          * @param $icon Array: The icon to build the html for, see $wgFooterIcons for the format of this array
1105          * @param $withImage Boolean: Whether to use the icon's image or output a text-only footericon
1106          */
1107         function makeFooterIcon( $icon, $withImage = 'withImage' ) {
1108                 if ( is_string( $icon ) ) {
1109                         $html = $icon;
1110                 } else { // Assuming array
1111                         $url = isset($icon["url"]) ? $icon["url"] : null;
1112                         unset( $icon["url"] );
1113                         if ( isset( $icon["src"] ) && $withImage === 'withImage' ) {
1114                                 $html = Html::element( 'img', $icon ); // do this the lazy way, just pass icon data as an attribute array
1115                         } else {
1116                                 $html = htmlspecialchars( $icon["alt"] );
1117                         }
1118                         if ( $url ) {
1119                                 $html = Html::rawElement( 'a', array( "href" => $url ), $html );
1120                         }
1121                 }
1122                 return $html;
1123         }
1124
1125         /**
1126          * Gets the link to the wiki's main page.
1127          * @return string
1128          */
1129         function mainPageLink() {
1130                 $s = $this->link(
1131                         Title::newMainPage(),
1132                         wfMsg( 'mainpage' ),
1133                         array(),
1134                         array(),
1135                         array( 'known', 'noclasses' )
1136                 );
1137
1138                 return $s;
1139         }
1140
1141         public function footerLink( $desc, $page ) {
1142                 // if the link description has been set to "-" in the default language,
1143                 if ( wfMsgForContent( $desc )  == '-' ) {
1144                         // then it is disabled, for all languages.
1145                         return '';
1146                 } else {
1147                         // Otherwise, we display the link for the user, described in their
1148                         // language (which may or may not be the same as the default language),
1149                         // but we make the link target be the one site-wide page.
1150                         $title = Title::newFromText( wfMsgForContent( $page ) );
1151
1152                         return $this->linkKnown(
1153                                 $title,
1154                                 wfMsgExt( $desc, array( 'parsemag', 'escapenoentities' ) )
1155                         );
1156                 }
1157         }
1158
1159         /**
1160          * Gets the link to the wiki's privacy policy page.
1161          */
1162         function privacyLink() {
1163                 return $this->footerLink( 'privacy', 'privacypage' );
1164         }
1165
1166         /**
1167          * Gets the link to the wiki's about page.
1168          */
1169         function aboutLink() {
1170                 return $this->footerLink( 'aboutsite', 'aboutpage' );
1171         }
1172
1173         /**
1174          * Gets the link to the wiki's general disclaimers page.
1175          */
1176         function disclaimerLink() {
1177                 return $this->footerLink( 'disclaimers', 'disclaimerpage' );
1178         }
1179
1180         /**
1181          * Return URL options for the 'edit page' link.
1182          * This may include an 'oldid' specifier, if the current page view is such.
1183          *
1184          * @return array
1185          * @private
1186          */
1187         function editUrlOptions() {
1188                 $options = array( 'action' => 'edit' );
1189
1190                 if ( !$this->isRevisionCurrent() ) {
1191                         $options['oldid'] = intval( $this->mRevisionId );
1192                 }
1193
1194                 return $options;
1195         }
1196
1197         function showEmailUser( $id ) {
1198                 global $wgUser;
1199                 $targetUser = User::newFromId( $id );
1200                 return $wgUser->canSendEmail() && # the sending user must have a confirmed email address
1201                         $targetUser->canReceiveEmail(); # the target user must have a confirmed email address and allow emails from users
1202         }
1203
1204         /**
1205          * Return a fully resolved style path url to images or styles stored in the common folder.
1206          * This method returns a url resolved using the configured skin style path
1207          * and includes the style version inside of the url.
1208          * @param $name String: The name or path of a skin resource file
1209          * @return String The fully resolved style path url including styleversion
1210          */
1211         function getCommonStylePath( $name ) {
1212                 global $wgStylePath, $wgStyleVersion;
1213                 return "$wgStylePath/common/$name?$wgStyleVersion";
1214         }
1215
1216         /**
1217          * Return a fully resolved style path url to images or styles stored in the curent skins's folder.
1218          * This method returns a url resolved using the configured skin style path
1219          * and includes the style version inside of the url.
1220          * @param $name String: The name or path of a skin resource file
1221          * @return String The fully resolved style path url including styleversion
1222          */
1223         function getSkinStylePath( $name ) {
1224                 global $wgStylePath, $wgStyleVersion;
1225                 return "$wgStylePath/{$this->stylename}/$name?$wgStyleVersion";
1226         }
1227
1228         /* these are used extensively in SkinTemplate, but also some other places */
1229         static function makeMainPageUrl( $urlaction = '' ) {
1230                 $title = Title::newMainPage();
1231                 self::checkTitle( $title, '' );
1232
1233                 return $title->getLocalURL( $urlaction );
1234         }
1235
1236         static function makeSpecialUrl( $name, $urlaction = '' ) {
1237                 $title = SpecialPage::getTitleFor( $name );
1238                 return $title->getLocalURL( $urlaction );
1239         }
1240
1241         static function makeSpecialUrlSubpage( $name, $subpage, $urlaction = '' ) {
1242                 $title = SpecialPage::getSafeTitleFor( $name, $subpage );
1243                 return $title->getLocalURL( $urlaction );
1244         }
1245
1246         static function makeI18nUrl( $name, $urlaction = '' ) {
1247                 $title = Title::newFromText( wfMsgForContent( $name ) );
1248                 self::checkTitle( $title, $name );
1249                 return $title->getLocalURL( $urlaction );
1250         }
1251
1252         static function makeUrl( $name, $urlaction = '' ) {
1253                 $title = Title::newFromText( $name );
1254                 self::checkTitle( $title, $name );
1255
1256                 return $title->getLocalURL( $urlaction );
1257         }
1258
1259         /**
1260          * If url string starts with http, consider as external URL, else
1261          * internal
1262          */
1263         static function makeInternalOrExternalUrl( $name ) {
1264                 if ( preg_match( '/^(?:' . wfUrlProtocols() . ')/', $name ) ) {
1265                         return $name;
1266                 } else {
1267                         return self::makeUrl( $name );
1268                 }
1269         }
1270
1271         # this can be passed the NS number as defined in Language.php
1272         static function makeNSUrl( $name, $urlaction = '', $namespace = NS_MAIN ) {
1273                 $title = Title::makeTitleSafe( $namespace, $name );
1274                 self::checkTitle( $title, $name );
1275
1276                 return $title->getLocalURL( $urlaction );
1277         }
1278
1279         /* these return an array with the 'href' and boolean 'exists' */
1280         static function makeUrlDetails( $name, $urlaction = '' ) {
1281                 $title = Title::newFromText( $name );
1282                 self::checkTitle( $title, $name );
1283
1284                 return array(
1285                         'href' => $title->getLocalURL( $urlaction ),
1286                         'exists' => $title->getArticleID() != 0,
1287                 );
1288         }
1289
1290         /**
1291          * Make URL details where the article exists (or at least it's convenient to think so)
1292          */
1293         static function makeKnownUrlDetails( $name, $urlaction = '' ) {
1294                 $title = Title::newFromText( $name );
1295                 self::checkTitle( $title, $name );
1296
1297                 return array(
1298                         'href' => $title->getLocalURL( $urlaction ),
1299                         'exists' => true
1300                 );
1301         }
1302
1303         # make sure we have some title to operate on
1304         static function checkTitle( &$title, $name ) {
1305                 if ( !is_object( $title ) ) {
1306                         $title = Title::newFromText( $name );
1307                         if ( !is_object( $title ) ) {
1308                                 $title = Title::newFromText( '--error: link target missing--' );
1309                         }
1310                 }
1311         }
1312
1313         /**
1314          * Build an array that represents the sidebar(s), the navigation bar among them
1315          *
1316          * @return array
1317          */
1318         function buildSidebar() {
1319                 global $parserMemc, $wgEnableSidebarCache, $wgSidebarCacheExpiry;
1320                 global $wgLang;
1321                 wfProfileIn( __METHOD__ );
1322
1323                 $key = wfMemcKey( 'sidebar', $wgLang->getCode() );
1324
1325                 if ( $wgEnableSidebarCache ) {
1326                         $cachedsidebar = $parserMemc->get( $key );
1327                         if ( $cachedsidebar ) {
1328                                 wfProfileOut( __METHOD__ );
1329                                 return $cachedsidebar;
1330                         }
1331                 }
1332
1333                 $bar = array();
1334                 $this->addToSidebar( $bar, 'sidebar' );
1335
1336                 wfRunHooks( 'SkinBuildSidebar', array( $this, &$bar ) );
1337                 if ( $wgEnableSidebarCache ) {
1338                         $parserMemc->set( $key, $bar, $wgSidebarCacheExpiry );
1339                 }
1340
1341                 wfProfileOut( __METHOD__ );
1342                 return $bar;
1343         }
1344         /**
1345          * Add content from a sidebar system message
1346          * Currently only used for MediaWiki:Sidebar (but may be used by Extensions)
1347          *
1348          * This is just a wrapper around addToSidebarPlain() for backwards compatibility
1349          *
1350          * @param &$bar array
1351          * @param $message String
1352          */
1353         function addToSidebar( &$bar, $message ) {
1354                 $this->addToSidebarPlain( $bar, wfMsgForContent( $message ) );
1355         }
1356
1357         /**
1358          * Add content from plain text
1359          * @since 1.17
1360          * @param &$bar array
1361          * @param $text string
1362          */
1363         function addToSidebarPlain( &$bar, $text ) {
1364                 $lines = explode( "\n", $text );
1365                 $wikiBar = array(); # We need to handle the wikitext on a different variable, to avoid trying to do an array operation on text, which would be a fatal error.
1366
1367                 $heading = '';
1368
1369                 foreach ( $lines as $line ) {
1370                         if ( strpos( $line, '*' ) !== 0 ) {
1371                                 continue;
1372                         }
1373
1374                         if ( strpos( $line, '**' ) !== 0 ) {
1375                                 $heading = trim( $line, '* ' );
1376                                 if ( !array_key_exists( $heading, $bar ) ) {
1377                                         $bar[$heading] = array();
1378                                 }
1379                         } else {
1380                                 $line = trim( $line, '* ' );
1381
1382                                 if ( strpos( $line, '|' ) !== false ) { // sanity check
1383                                         $line = array_map( 'trim', explode( '|', $line, 2 ) );
1384                                         $link = wfMsgForContent( $line[0] );
1385
1386                                         if ( $link == '-' ) {
1387                                                 continue;
1388                                         }
1389
1390                                         $text = wfMsgExt( $line[1], 'parsemag' );
1391
1392                                         if ( wfEmptyMsg( $line[1], $text ) ) {
1393                                                 $text = $line[1];
1394                                         }
1395
1396                                         if ( wfEmptyMsg( $line[0], $link ) ) {
1397                                                 $link = $line[0];
1398                                         }
1399
1400                                         if ( preg_match( '/^(?:' . wfUrlProtocols() . ')/', $link ) ) {
1401                                                 $href = $link;
1402                                         } else {
1403                                                 $title = Title::newFromText( $link );
1404
1405                                                 if ( $title ) {
1406                                                         $title = $title->fixSpecialName();
1407                                                         $href = $title->getLocalURL();
1408                                                 } else {
1409                                                         $href = 'INVALID-TITLE';
1410                                                 }
1411                                         }
1412
1413                                         $bar[$heading][] = array(
1414                                                 'text' => $text,
1415                                                 'href' => $href,
1416                                                 'id' => 'n-' . strtr( $line[1], ' ', '-' ),
1417                                                 'active' => false
1418                                         );
1419                                 } else if ( ( substr( $line, 0, 2 ) == '{{' ) && ( substr( $line, -2 ) == '}}' ) ) {
1420                                         global $wgParser, $wgTitle;
1421
1422                                         $line = substr( $line, 2, strlen( $line ) - 4 );
1423
1424                                         $options = new ParserOptions();
1425                                         $options->setEditSection( false );
1426                                         $options->setInterfaceMessage( true );
1427                                         $wikiBar[$heading] = $wgParser->parse( wfMsgForContentNoTrans( $line ) , $wgTitle, $options )->getText();
1428                                 } else {
1429                                         continue;
1430                                 }
1431                         }
1432                 }
1433
1434                 if ( count( $wikiBar ) > 0 ) {
1435                         $bar = array_merge( $bar, $wikiBar );
1436                 }
1437
1438                 return $bar;
1439         }
1440
1441         /**
1442          * Should we include common/wikiprintable.css?  Skins that have their own
1443          * print stylesheet should override this and return false.  (This is an
1444          * ugly hack to get Monobook to play nicely with
1445          * OutputPage::headElement().)
1446          *
1447          * @return bool
1448          */
1449         public function commonPrintStylesheet() {
1450                 return true;
1451         }
1452
1453         /**
1454          * Gets new talk page messages for the current user.
1455          * @return MediaWiki message or if no new talk page messages, nothing
1456          */
1457         function getNewtalks() {
1458                 global $wgUser, $wgOut;
1459
1460                 $newtalks = $wgUser->getNewMessageLinks();
1461                 $ntl = '';
1462
1463                 if ( count( $newtalks ) == 1 && $newtalks[0]['wiki'] === wfWikiID() ) {
1464                         $userTitle = $this->mUser->getUserPage();
1465                         $userTalkTitle = $userTitle->getTalkPage();
1466
1467                         if ( !$userTalkTitle->equals( $this->mTitle ) ) {
1468                                 $newMessagesLink = $this->link(
1469                                         $userTalkTitle,
1470                                         wfMsgHtml( 'newmessageslink' ),
1471                                         array(),
1472                                         array( 'redirect' => 'no' ),
1473                                         array( 'known', 'noclasses' )
1474                                 );
1475
1476                                 $newMessagesDiffLink = $this->link(
1477                                         $userTalkTitle,
1478                                         wfMsgHtml( 'newmessagesdifflink' ),
1479                                         array(),
1480                                         array( 'diff' => 'cur' ),
1481                                         array( 'known', 'noclasses' )
1482                                 );
1483
1484                                 $ntl = wfMsg(
1485                                         'youhavenewmessages',
1486                                         $newMessagesLink,
1487                                         $newMessagesDiffLink
1488                                 );
1489                                 # Disable Squid cache
1490                                 $wgOut->setSquidMaxage( 0 );
1491                         }
1492                 } elseif ( count( $newtalks ) ) {
1493                         // _>" " for BC <= 1.16
1494                         $sep = str_replace( '_', ' ', wfMsgHtml( 'newtalkseparator' ) );
1495                         $msgs = array();
1496
1497                         foreach ( $newtalks as $newtalk ) {
1498                                 $msgs[] = Xml::element(
1499                                         'a',
1500                                         array( 'href' => $newtalk['link'] ), $newtalk['wiki']
1501                                 );
1502                         }
1503                         $parts = implode( $sep, $msgs );
1504                         $ntl = wfMsgHtml( 'youhavenewmessagesmulti', $parts );
1505                         $wgOut->setSquidMaxage( 0 );
1506                 }
1507
1508                 return $ntl;
1509         }
1510
1511         /**
1512          * Get a cached notice
1513          *
1514          * @param $name String: message name, or 'default' for $wgSiteNotice
1515          * @return String: HTML fragment
1516          */
1517         private function getCachedNotice( $name ) {
1518                 global $wgOut, $wgRenderHashAppend, $parserMemc;
1519
1520                 wfProfileIn( __METHOD__ );
1521
1522                 $needParse = false;
1523
1524                 if( $name === 'default' ) {
1525                         // special case
1526                         global $wgSiteNotice;
1527                         $notice = $wgSiteNotice;
1528                         if( empty( $notice ) ) {
1529                                 wfProfileOut( __METHOD__ );
1530                                 return false;
1531                         }
1532                 } else {
1533                         $msg = wfMessage( $name )->inContentLanguage();
1534                         if( $msg->isDisabled() ) {
1535                                 wfProfileOut( __METHOD__ );
1536                                 return false;
1537                         }
1538                         $notice = $msg->plain();
1539                 }
1540
1541                 // Use the extra hash appender to let eg SSL variants separately cache.
1542                 $key = wfMemcKey( $name . $wgRenderHashAppend );
1543                 $cachedNotice = $parserMemc->get( $key );
1544                 if( is_array( $cachedNotice ) ) {
1545                         if( md5( $notice ) == $cachedNotice['hash'] ) {
1546                                 $notice = $cachedNotice['html'];
1547                         } else {
1548                                 $needParse = true;
1549                         }
1550                 } else {
1551                         $needParse = true;
1552                 }
1553
1554                 if ( $needParse ) {
1555                         if( is_object( $wgOut ) ) {
1556                                 $parsed = $wgOut->parse( $notice );
1557                                 $parserMemc->set( $key, array( 'html' => $parsed, 'hash' => md5( $notice ) ), 600 );
1558                                 $notice = $parsed;
1559                         } else {
1560                                 wfDebug( 'wfGetCachedNotice called for ' . $name . ' with no $wgOut available' . "\n" );
1561                                 $notice = '';
1562                         }
1563                 }
1564
1565                 $notice = '<div id="localNotice">' .$notice . '</div>';
1566                 wfProfileOut( __METHOD__ );
1567                 return $notice;
1568         }
1569
1570         /**
1571          * Get a notice based on page's namespace
1572          *
1573          * @return String: HTML fragment
1574          */
1575         function getNamespaceNotice() {
1576                 wfProfileIn( __METHOD__ );
1577
1578                 $key = 'namespacenotice-' . $this->mTitle->getNsText();
1579                 $namespaceNotice = wfGetCachedNotice( $key );
1580                 if ( $namespaceNotice && substr( $namespaceNotice, 0, 7 ) != '<p>&lt;' ) {
1581                         $namespaceNotice = '<div id="namespacebanner">' . $namespaceNotice . '</div>';
1582                 } else {
1583                         $namespaceNotice = '';
1584                 }
1585
1586                 wfProfileOut( $fname );
1587                 return $namespaceNotice;
1588         }
1589
1590         /**
1591          * Get the site notice
1592          *
1593          * @return String: HTML fragment
1594          */
1595         function getSiteNotice() {
1596                 global $wgUser;
1597
1598                 wfProfileIn( __METHOD__ );
1599                 $siteNotice = '';
1600
1601                 if ( wfRunHooks( 'SiteNoticeBefore', array( &$siteNotice, $this ) ) ) {
1602                         if ( is_object( $wgUser ) && $wgUser->isLoggedIn() ) {
1603                                 $siteNotice = $this->getCachedNotice( 'sitenotice' );
1604                         } else {
1605                                 $anonNotice = $this->getCachedNotice( 'anonnotice' );
1606                                 if ( !$anonNotice ) {
1607                                         $siteNotice = $this->getCachedNotice( 'sitenotice' );
1608                                 } else {
1609                                         $siteNotice = $anonNotice;
1610                                 }
1611                         }
1612                         if ( !$siteNotice ) {
1613                                 $siteNotice = $this->getCachedNotice( 'default' );
1614                         }
1615                 }
1616
1617                 wfRunHooks( 'SiteNoticeAfter', array( &$siteNotice, $this ) );
1618                 wfProfileOut( __METHOD__ );
1619                 return $siteNotice;
1620 }
1621 }