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 class Skin extends Linker {
  19         /**#@+
  20          * @private
  21          */
  22         var $mWatchLinkNum = 0; // Appended to end of watch link id's
  23         // How many search boxes have we made?  Avoid duplicate id's.
  24         protected $searchboxes = '';
  25         /**#@-*/
  26         protected $mRevisionId; // The revision ID we're looking at, null if not applicable.
  27         protected $skinname = 'standard';
  28         // @todo Fixme: should be protected :-\
  29         var $mTitle = 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 ) {
  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' . ucfirst( $key );
 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 qbSetting() {
 183                 global $wgOut, $wgUser;
 184
 185                 if ( $wgOut->isQuickbarSuppressed() ) {
 186                         return 0;
 187                 }
 188
 189                 $q = $wgUser->getOption( 'quickbar', 0 );
 190
 191                 return $q;
 192         }
 193
 194         function initPage( OutputPage $out ) {
 195                 global $wgFavicon, $wgAppleTouchIcon;
 196
 197                 wfProfileIn( __METHOD__ );
 198
 199                 # Generally the order of the favicon and apple-touch-icon links
 200                 # should not matter, but Konqueror (3.5.9 at least) incorrectly
 201                 # uses whichever one appears later in the HTML source. Make sure
 202                 # apple-touch-icon is specified first to avoid this.
 203                 if ( false !== $wgAppleTouchIcon ) {
 204                         $out->addLink( array( 'rel' => 'apple-touch-icon', 'href' => $wgAppleTouchIcon ) );
 205                 }
 206
 207                 if ( false !== $wgFavicon ) {
 208                         $out->addLink( array( 'rel' => 'shortcut icon', 'href' => $wgFavicon ) );
 209                 }
 210
 211                 # OpenSearch description link
 212                 $out->addLink( array(
 213                         'rel' => 'search',
 214                         'type' => 'application/opensearchdescription+xml',
 215                         'href' => wfScript( 'opensearch_desc' ),
 216                         'title' => wfMsgForContent( 'opensearch-desc' ),
 217                 ) );
 218
 219                 # Real Simple Discovery link, provides auto-discovery information
 220                 # for the MediaWiki API (and potentially additional custom API
 221                 # support such as WordPress or Twitter-compatible APIs for a
 222                 # blogging extension, etc)
 223                 $out->addLink( array(
 224                         'rel' => 'EditURI',
 225                         'type' => 'application/rsd+xml',
 226                         'href' => wfExpandUrl( wfAppendQuery( wfScript( 'api' ), array( 'action' => 'rsd' ) ) ),
 227                 ) );
 228
 229                 $this->addMetadataLinks( $out );
 230
 231                 $this->mRevisionId = $out->mRevisionId;
 232
 233                 $this->preloadExistence();
 234
 235                 wfProfileOut( __METHOD__ );
 236         }
 237
 238         /**
 239          * Preload the existence of three commonly-requested pages in a single query
 240          */
 241         function preloadExistence() {
 242                 global $wgUser;
 243
 244                 // User/talk link
 245                 $titles = array( $wgUser->getUserPage(), $wgUser->getTalkPage() );
 246
 247                 // Other tab link
 248                 if ( $this->mTitle->getNamespace() == NS_SPECIAL ) {
 249                         // nothing
 250                 } elseif ( $this->mTitle->isTalkPage() ) {
 251                         $titles[] = $this->mTitle->getSubjectPage();
 252                 } else {
 253                         $titles[] = $this->mTitle->getTalkPage();
 254                 }
 255
 256                 $lb = new LinkBatch( $titles );
 257                 $lb->setCaller( __METHOD__ );
 258                 $lb->execute();
 259         }
 260
 261         /**
 262          * Adds metadata links below to the HTML output.
 263          * <ol>
 264          *  <li>Creative Commons
 265          *   <br />See http://wiki.creativecommons.org/Extend_Metadata.
 266          *  </li>
 267          *  <li>Dublin Core</li>
 268          *  <li>Use hreflang to specify canonical and alternate links
 269          *   <br />See http://www.google.com/support/webmasters/bin/answer.py?answer=189077
 270          *  </li>
 271          *  <li>Copyright</li>
 272          * <ol>
 273          *
 274          * @param $out Object: instance of OutputPage
 275          */
 276         function addMetadataLinks( OutputPage $out ) {
 277                 global $wgEnableDublinCoreRdf, $wgEnableCreativeCommonsRdf;
 278                 global $wgDisableLangConversion, $wgDisableLangCanonical, $wgContLang;
 279                 global $wgRightsPage, $wgRightsUrl;
 280
 281                 if ( $out->isArticleRelated() ) {
 282                         # note: buggy CC software only reads first "meta" link
 283                         if ( $wgEnableCreativeCommonsRdf ) {
 284                                 $out->addMetadataLink( array(
 285                                         'title' => 'Creative Commons',
 286                                         'type' => 'application/rdf+xml',
 287                                         'href' => $this->mTitle->getLocalURL( 'action=creativecommons' ) )
 288                                 );
 289                         }
 290
 291                         if ( $wgEnableDublinCoreRdf ) {
 292                                 $out->addMetadataLink( array(
 293                                         'title' => 'Dublin Core',
 294                                         'type' => 'application/rdf+xml',
 295                                         'href' => $this->mTitle->getLocalURL( 'action=dublincore' ) )
 296                                 );
 297                         }
 298                 }
 299
 300                 if ( !$wgDisableLangConversion && !$wgDisableLangCanonical
 301                         && $wgContLang->hasVariants() ) {
 302
 303                         $urlvar = $wgContLang->getURLVariant();
 304
 305                         if ( !$urlvar ) {
 306                                 $variants = $wgContLang->getVariants();
 307                                 foreach ( $variants as $_v ) {
 308                                         $out->addLink( array(
 309                                                 'rel' => 'alternate',
 310                                                 'hreflang' => $_v,
 311                                                 'href' => $this->mTitle->getLocalURL( '', $_v ) )
 312                                         );
 313                                 }
 314                         } else {
 315                                 $out->addLink( array(
 316                                         'rel' => 'canonical',
 317                                         'href' => $this->mTitle->getFullURL() )
 318                                 );
 319                         }
 320                 }
 321
 322                 $copyright = '';
 323                 if ( $wgRightsPage ) {
 324                         $copy = Title::newFromText( $wgRightsPage );
 325
 326                         if ( $copy ) {
 327                                 $copyright = $copy->getLocalURL();
 328                         }
 329                 }
 330
 331                 if ( !$copyright && $wgRightsUrl ) {
 332                         $copyright = $wgRightsUrl;
 333                 }
 334
 335                 if ( $copyright ) {
 336                         $out->addLink( array(
 337                                 'rel' => 'copyright',
 338                                 'href' => $copyright )
 339                         );
 340                 }
 341         }
 342
 343         /**
 344          * Set some local variables
 345          */
 346         protected function setMembers() {
 347                 global $wgUser;
 348                 $this->mUser = $wgUser;
 349                 $this->userpage = $wgUser->getUserPage()->getPrefixedText();
 350                 $this->usercss = false;
 351         }
 352
 353         /**
 354          * Set the title
 355          * @param $t Title object to use
 356          */
 357         public function setTitle( $t ) {
 358                 $this->mTitle = $t;
 359         }
 360
 361         /** Get the title */
 362         public function getTitle() {
 363                 return $this->mTitle;
 364         }
 365
 366         /**
 367          * Outputs the HTML generated by other functions.
 368          * @param $out Object: instance of OutputPage
 369          */
 370         function outputPage( OutputPage $out ) {
 371                 global $wgDebugComments;
 372                 wfProfileIn( __METHOD__ );
 373
 374                 $this->setMembers();
 375                 $this->initPage( $out );
 376
 377                 // See self::afterContentHook() for documentation
 378                 $afterContent = $this->afterContentHook();
 379
 380                 $out->out( $out->headElement( $this ) );
 381
 382                 if ( $wgDebugComments ) {
 383                         $out->out( "<!-- Wiki debugging output:\n" .
 384                           $out->mDebugtext . "-->\n" );
 385                 }
 386
 387                 $out->out( $this->beforeContent() );
 388
 389                 $out->out( $out->mBodytext . "\n" );
 390
 391                 $out->out( $this->afterContent() );
 392
 393                 $out->out( $afterContent );
 394
 395                 $out->out( $this->bottomScripts( $out ) );
 396
 397                 $out->out( wfReportTime() );
 398
 399                 $out->out( "\n</body></html>" );
 400                 wfProfileOut( __METHOD__ );
 401         }
 402
 403         static function makeVariablesScript( $data ) {
 404                 if ( $data ) {
 405                         return Html::inlineScript(
 406                                 ResourceLoader::makeLoaderConditionalScript( ResourceLoader::makeConfigSetScript( $data ) )
 407                         );
 408                 } else {
 409                         return '';
 410                 }
 411         }
 412
 413         /**
 414          * Make a <script> tag containing global variables
 415          * @param $skinName string Name of the skin
 416          * The odd calling convention is for backwards compatibility
 417          * @todo FIXME: Make this not depend on $wgTitle!
 418          *
 419          * Do not add things here which can be evaluated in ResourceLoaderStartupScript - in other words, without state.
 420          * You will only be adding bloat to the page and causing page caches to have to be purged on configuration changes.
 421          */
 422         static function makeGlobalVariablesScript( $skinName ) {
 423                 global $wgTitle, $wgUser, $wgRequest, $wgArticle, $wgOut, $wgRestrictionTypes, $wgUseAjax, $wgEnableMWSuggest;
 424
 425                 $ns = $wgTitle->getNamespace();
 426                 $nsname = MWNamespace::exists( $ns ) ? MWNamespace::getCanonicalName( $ns ) : $wgTitle->getNsText();
 427                 $vars = array(
 428                         'wgCanonicalNamespace' => $nsname,
 429                         'wgCanonicalSpecialPageName' => $ns == NS_SPECIAL ?
 430                                 SpecialPage::resolveAlias( $wgTitle->getDBkey() ) : false, # bug 21115
 431                         'wgNamespaceNumber' => $wgTitle->getNamespace(),
 432                         'wgPageName' => $wgTitle->getPrefixedDBKey(),
 433                         'wgTitle' => $wgTitle->getText(),
 434                         'wgAction' => $wgRequest->getText( 'action', 'view' ),
 435                         'wgArticleId' => $wgTitle->getArticleId(),
 436                         'wgIsArticle' => $wgOut->isArticle(),
 437                         'wgUserName' => $wgUser->isAnon() ? null : $wgUser->getName(),
 438                         'wgUserGroups' => $wgUser->getEffectiveGroups(),
 439                         'wgCurRevisionId' => isset( $wgArticle ) ? $wgArticle->getLatest() : 0,
 440                         'wgCategories' => $wgOut->getCategories(),
 441                 );
 442                 foreach ( $wgRestrictionTypes as $type ) {
 443                         $vars['wgRestriction' . ucfirst( $type )] = $wgTitle->getRestrictions( $type );
 444                 }
 445                 if ( $wgUseAjax && $wgEnableMWSuggest && !$wgUser->getOption( 'disablesuggest', false ) ) {
 446                         $vars['wgSearchNamespaces'] = SearchEngine::userNamespaces( $wgUser );
 447                 }
 448
 449                 // Allow extensions to add their custom variables to the global JS variables
 450                 wfRunHooks( 'MakeGlobalVariablesScript', array( &$vars ) );
 451
 452                 return self::makeVariablesScript( $vars );
 453         }
 454
 455         /**
 456          * To make it harder for someone to slip a user a fake
 457          * user-JavaScript or user-CSS preview, a random token
 458          * is associated with the login session. If it's not
 459          * passed back with the preview request, we won't render
 460          * the code.
 461          *
 462          * @param $action String: 'edit', 'submit' etc.
 463          * @return bool
 464          */
 465         public function userCanPreview( $action ) {
 466                 global $wgRequest, $wgUser;
 467
 468                 if ( $action != 'submit' ) {
 469                         return false;
 470                 }
 471                 if ( !$wgRequest->wasPosted() ) {
 472                         return false;
 473                 }
 474                 if ( !$this->mTitle->userCanEditCssSubpage() ) {
 475                         return false;
 476                 }
 477                 if ( !$this->mTitle->userCanEditJsSubpage() ) {
 478                         return false;
 479                 }
 480
 481                 return $wgUser->matchEditToken(
 482                         $wgRequest->getVal( 'wpEditToken' ) );
 483         }
 484
 485         /**
 486          * Generated JavaScript action=raw&gen=js
 487          * This returns MediaWiki:Common.js and MediaWiki:[Skinname].js concate-
 488          * nated together.  For some bizarre reason, it does *not* return any
 489          * custom user JS from subpages.  Huh?
 490          *
 491          * There's absolutely no reason to have separate Monobook/Common JSes.
 492          * Any JS that cares can just check the skin variable generated at the
 493          * top.  For now Monobook.js will be maintained, but it should be consi-
 494          * dered deprecated.
 495          *
 496          * @param $skinName String: If set, overrides the skin name
 497          * @return string
 498          */
 499         public function generateUserJs( $skinName = null ) {
 500
 501                 // Stub - see ResourceLoaderSiteModule, CologneBlue, Simple and Standard skins override this
 502
 503                 return '';
 504         }
 505
 506         /**
 507          * Generate user stylesheet for action=raw&gen=css
 508          */
 509         public function generateUserStylesheet() {
 510
 511                 // Stub - see ResourceLoaderUserModule, CologneBlue, Simple and Standard skins override this
 512
 513                 return '';
 514         }
 515
 516         /**
 517          * Split for easier subclassing in SkinSimple, SkinStandard and SkinCologneBlue
 518          * Anything in here won't be generated if $wgAllowUserCssPrefs is false.
 519          */
 520         protected function reallyGenerateUserStylesheet() {
 521
 522                 // Stub - see  ResourceLoaderUserModule, CologneBlue, Simple and Standard skins override this
 523
 524                 return '';
 525         }
 526
 527         /**
 528          * @private
 529          */
 530         function setupUserCss( OutputPage $out ) {
 531                 global $wgRequest;
 532                 global $wgUseSiteCss, $wgAllowUserCss, $wgAllowUserCssPrefs, $wgSquidMaxage;
 533
 534                 wfProfileIn( __METHOD__ );
 535
 536                 $this->setupSkinUserCss( $out );
 537
 538                 $siteargs = array(
 539                         'action' => 'raw',
 540                         'maxage' => $wgSquidMaxage,
 541                 );
 542
 543                 // Add any extension CSS
 544                 foreach ( $out->getExtStyle() as $url ) {
 545                         $out->addStyle( $url );
 546                 }
 547
 548                 // Per-site custom styles
 549                 if ( $wgUseSiteCss ) {
 550                         $out->addModuleStyles( 'site' );
 551                 }
 552
 553                 // Per-user custom styles
 554                 if ( $wgAllowUserCss ) {
 555                         if ( $this->mTitle->isCssSubpage() && $this->userCanPreview( $wgRequest->getVal( 'action' ) ) ) {
 556                                 // @FIXME: properly escape the cdata!
 557                                 $out->addInlineStyle( $wgRequest->getText( 'wpTextbox1' ) );
 558                         } else {
 559                                 $out->addModuleStyles( 'user' );
 560                         }
 561                 }
 562
 563                 // Per-user preference styles
 564                 if ( $wgAllowUserCssPrefs ) {
 565                         $out->addModuleStyles( 'user.options' );
 566                 }
 567
 568                 wfProfileOut( __METHOD__ );
 569         }
 570
 571         /**
 572          * Get the query to generate a dynamic stylesheet
 573          *
 574          * @return array
 575          */
 576         public static function getDynamicStylesheetQuery() {
 577                 global $wgSquidMaxage;
 578
 579                 return array(
 580                                 'action' => 'raw',
 581                                 'maxage' => $wgSquidMaxage,
 582                                 'usemsgcache' => 'yes',
 583                                 'ctype' => 'text/css',
 584                                 'smaxage' => $wgSquidMaxage,
 585                         );
 586         }
 587
 588         /**
 589          * Add skin specific stylesheets
 590          * @param $out OutputPage
 591          */
 592         function setupSkinUserCss( OutputPage $out ) {
 593                 $out->addModuleStyles( 'mediawiki.legacy.shared' );
 594                 $out->addModuleStyles( 'mediawiki.legacy.oldshared' );
 595                 // TODO: When converting old skins to use ResourceLoader (or removing them) the following should be reconsidered
 596                 $out->addStyle( $this->getStylesheet() );
 597                 $out->addStyle( 'common/common_rtl.css', '', '', 'rtl' );
 598         }
 599
 600         function getPageClasses( $title ) {
 601                 $numeric = 'ns-' . $title->getNamespace();
 602
 603                 if ( $title->getNamespace() == NS_SPECIAL ) {
 604                         $type = 'ns-special';
 605                 } elseif ( $title->isTalkPage() ) {
 606                         $type = 'ns-talk';
 607                 } else {
 608                         $type = 'ns-subject';
 609                 }
 610
 611                 $name = Sanitizer::escapeClass( 'page-' . $title->getPrefixedText() );
 612
 613                 return "$numeric $type $name";
 614         }
 615
 616         /**
 617          * This will be called by OutputPage::headElement when it is creating the
 618          * <body> tag, skins can override it if they have a need to add in any
 619          * body attributes or classes of their own.
 620          */
 621         function addToBodyAttributes( $out, &$bodyAttrs ) {
 622                 // does nothing by default
 623         }
 624
 625         /**
 626          * URL to the logo
 627          */
 628         function getLogo() {
 629                 global $wgLogo;
 630                 return $wgLogo;
 631         }
 632
 633         /**
 634          * This will be called immediately after the <body> tag.  Split into
 635          * two functions to make it easier to subclass.
 636          */
 637         function beforeContent() {
 638                 return $this->doBeforeContent();
 639         }
 640
 641         function doBeforeContent() {
 642                 global $wgContLang;
 643                 wfProfileIn( __METHOD__ );
 644
 645                 $s = '';
 646                 $qb = $this->qbSetting();
 647
 648                 $langlinks = $this->otherLanguages();
 649                 if ( $langlinks ) {
 650                         $rows = 2;
 651                         $borderhack = '';
 652                 } else {
 653                         $rows = 1;
 654                         $langlinks = false;
 655                         $borderhack = 'class="top"';
 656                 }
 657
 658                 $s .= "\n<div id='content'>\n<div id='topbar'>\n" .
 659                   "<table border='0' cellspacing='0' width='98%'>\n<tr>\n";
 660
 661                 $shove = ( $qb != 0 );
 662                 $left = ( $qb == 1 || $qb == 3 );
 663
 664                 if ( $wgContLang->isRTL() ) {
 665                         $left = !$left;
 666                 }
 667
 668                 if ( !$shove ) {
 669                         $s .= "<td class='top' align='left' valign='top' rowspan='{$rows}'>\n" .
 670                                 $this->logoText() . '</td>';
 671                 } elseif ( $left ) {
 672                         $s .= $this->getQuickbarCompensator( $rows );
 673                 }
 674
 675                 $l = $wgContLang->alignStart();
 676                 $s .= "<td {$borderhack} align='$l' valign='top'>\n";
 677
 678                 $s .= $this->topLinks();
 679                 $s .= '<p class="subtitle">' . $this->pageTitleLinks() . "</p>\n";
 680
 681                 $r = $wgContLang->alignEnd();
 682                 $s .= "</td>\n<td {$borderhack} valign='top' align='$r' nowrap='nowrap'>";
 683                 $s .= $this->nameAndLogin();
 684                 $s .= "\n<br />" . $this->searchForm() . '</td>';
 685
 686                 if ( $langlinks ) {
 687                         $s .= "</tr>\n<tr>\n<td class='top' colspan=\"2\">$langlinks</td>\n";
 688                 }
 689
 690                 if ( $shove && !$left ) { # Right
 691                         $s .= $this->getQuickbarCompensator( $rows );
 692                 }
 693
 694                 $s .= "</tr>\n</table>\n</div>\n";
 695                 $s .= "\n<div id='article'>\n";
 696
 697                 $notice = wfGetSiteNotice();
 698
 699                 if ( $notice ) {
 700                         $s .= "\n<div id='siteNotice'>$notice</div>\n";
 701                 }
 702                 $s .= $this->pageTitle();
 703                 $s .= $this->pageSubtitle();
 704                 $s .= $this->getCategories();
 705
 706                 wfProfileOut( __METHOD__ );
 707                 return $s;
 708         }
 709
 710         function getCategoryLinks() {
 711                 global $wgOut, $wgUseCategoryBrowser;
 712                 global $wgContLang, $wgUser;
 713
 714                 if ( count( $wgOut->mCategoryLinks ) == 0 ) {
 715                         return '';
 716                 }
 717
 718                 # Separator
 719                 $sep = wfMsgExt( 'catseparator', array( 'parsemag', 'escapenoentities' ) );
 720
 721                 // Use Unicode bidi embedding override characters,
 722                 // to make sure links don't smash each other up in ugly ways.
 723                 $dir = $wgContLang->getDir();
 724                 $embed = "<span dir='$dir'>";
 725                 $pop = '</span>';
 726
 727                 $allCats = $wgOut->getCategoryLinks();
 728                 $s = '';
 729                 $colon = wfMsgExt( 'colon-separator', 'escapenoentities' );
 730
 731                 if ( !empty( $allCats['normal'] ) ) {
 732                         $t = $embed . implode( "{$pop} {$sep} {$embed}" , $allCats['normal'] ) . $pop;
 733
 734                         $msg = wfMsgExt( 'pagecategories', array( 'parsemag', 'escapenoentities' ), count( $allCats['normal'] ) );
 735                         $s .= '<div id="mw-normal-catlinks">' .
 736                                 $this->link( Title::newFromText( wfMsgForContent( 'pagecategorieslink' ) ), $msg )
 737                                 . $colon . $t . '</div>';
 738                 }
 739
 740                 # Hidden categories
 741                 if ( isset( $allCats['hidden'] ) ) {
 742                         if ( $wgUser->getBoolOption( 'showhiddencats' ) ) {
 743                                 $class = 'mw-hidden-cats-user-shown';
 744                         } elseif ( $this->mTitle->getNamespace() == NS_CATEGORY ) {
 745                                 $class = 'mw-hidden-cats-ns-shown';
 746                         } else {
 747                                 $class = 'mw-hidden-cats-hidden';
 748                         }
 749
 750                         $s .= "<div id=\"mw-hidden-catlinks\" class=\"$class\">" .
 751                                 wfMsgExt( 'hidden-categories', array( 'parsemag', 'escapenoentities' ), count( $allCats['hidden'] ) ) .
 752                                 $colon . $embed . implode( "$pop $sep $embed", $allCats['hidden'] ) . $pop .
 753                                 '</div>';
 754                 }
 755
 756                 # optional 'dmoz-like' category browser. Will be shown under the list
 757                 # of categories an article belong to
 758                 if ( $wgUseCategoryBrowser ) {
 759                         $s .= '<br /><hr />';
 760
 761                         # get a big array of the parents tree
 762                         $parenttree = $this->mTitle->getParentCategoryTree();
 763                         # Skin object passed by reference cause it can not be
 764                         # accessed under the method subfunction drawCategoryBrowser
 765                         $tempout = explode( "\n", $this->drawCategoryBrowser( $parenttree, $this ) );
 766                         # Clean out bogus first entry and sort them
 767                         unset( $tempout[0] );
 768                         asort( $tempout );
 769                         # Output one per line
 770                         $s .= implode( "<br />\n", $tempout );
 771                 }
 772
 773                 return $s;
 774         }
 775
 776         /**
 777          * Render the array as a serie of links.
 778          * @param $tree Array: categories tree returned by Title::getParentCategoryTree
 779          * @param &skin Object: skin passed by reference
 780          * @return String separated by &gt;, terminate with "\n"
 781          */
 782         function drawCategoryBrowser( $tree, &$skin ) {
 783                 $return = '';
 784
 785                 foreach ( $tree as $element => $parent ) {
 786                         if ( empty( $parent ) ) {
 787                                 # element start a new list
 788                                 $return .= "\n";
 789                         } else {
 790                                 # grab the others elements
 791                                 $return .= $this->drawCategoryBrowser( $parent, $skin ) . ' &gt; ';
 792                         }
 793
 794                         # add our current element to the list
 795                         $eltitle = Title::newFromText( $element );
 796                         $return .=  $skin->link( $eltitle, $eltitle->getText() );
 797                 }
 798
 799                 return $return;
 800         }
 801
 802         function getCategories() {
 803                 $catlinks = $this->getCategoryLinks();
 804
 805                 $classes = 'catlinks';
 806
 807                 global $wgOut, $wgUser;
 808
 809                 // Check what we're showing
 810                 $allCats = $wgOut->getCategoryLinks();
 811                 $showHidden = $wgUser->getBoolOption( 'showhiddencats' ) ||
 812                                                 $this->mTitle->getNamespace() == NS_CATEGORY;
 813
 814                 if ( empty( $allCats['normal'] ) && !( !empty( $allCats['hidden'] ) && $showHidden ) ) {
 815                         $classes .= ' catlinks-allhidden';
 816                 }
 817
 818                 return "<div id='catlinks' class='$classes'>{$catlinks}</div>";
 819         }
 820
 821         function getQuickbarCompensator( $rows = 1 ) {
 822                 return "<td width='152' rowspan='{$rows}'>&#160;</td>";
 823         }
 824
 825         /**
 826          * This runs a hook to allow extensions placing their stuff after content
 827          * and article metadata (e.g. categories).
 828          * Note: This function has nothing to do with afterContent().
 829          *
 830          * This hook is placed here in order to allow using the same hook for all
 831          * skins, both the SkinTemplate based ones and the older ones, which directly
 832          * use this class to get their data.
 833          *
 834          * The output of this function gets processed in SkinTemplate::outputPage() for
 835          * the SkinTemplate based skins, all other skins should directly echo it.
 836          *
 837          * Returns an empty string by default, if not changed by any hook function.
 838          */
 839         protected function afterContentHook() {
 840                 $data = '';
 841
 842                 if ( wfRunHooks( 'SkinAfterContent', array( &$data, $this ) ) ) {
 843                         // adding just some spaces shouldn't toggle the output
 844                         // of the whole <div/>, so we use trim() here
 845                         if ( trim( $data ) != '' ) {
 846                                 // Doing this here instead of in the skins to
 847                                 // ensure that the div has the same ID in all
 848                                 // skins
 849                                 $data = "<div id='mw-data-after-content'>\n" .
 850                                         "\t$data\n" .
 851                                         "</div>\n";
 852                         }
 853                 } else {
 854                         wfDebug( "Hook SkinAfterContent changed output processing.\n" );
 855                 }
 856
 857                 return $data;
 858         }
 859
 860         /**
 861          * Generate debug data HTML for displaying at the bottom of the main content
 862          * area.
 863          * @return String HTML containing debug data, if enabled (otherwise empty).
 864          */
 865         protected function generateDebugHTML() {
 866                 global $wgShowDebug, $wgOut;
 867
 868                 if ( $wgShowDebug ) {
 869                         $listInternals = $this->formatDebugHTML( $wgOut->mDebugtext );
 870                         return "\n<hr />\n<strong>Debug data:</strong><ul style=\"font-family:monospace;\" id=\"mw-debug-html\">" .
 871                                 $listInternals . "</ul>\n";
 872                 }
 873
 874                 return '';
 875         }
 876
 877         private function formatDebugHTML( $debugText ) {
 878                 $lines = explode( "\n", $debugText );
 879                 $curIdent = 0;
 880                 $ret = '<li>';
 881
 882                 foreach ( $lines as $line ) {
 883                         $display = ltrim( $line );
 884                         $ident = strlen( $line ) - strlen( $display );
 885                         $diff = $ident - $curIdent;
 886
 887                         if ( $display == '' ) {
 888                                 $display = "\xc2\xa0";
 889                         }
 890
 891                         if ( !$ident && $diff < 0 && substr( $display, 0, 9 ) != 'Entering ' && substr( $display, 0, 8 ) != 'Exiting ' ) {
 892                                 $ident = $curIdent;
 893                                 $diff = 0;
 894                                 $display = '<span style="background:yellow;">' . htmlspecialchars( $display ) . '</span>';
 895                         } else {
 896                                 $display = htmlspecialchars( $display );
 897                         }
 898
 899                         if ( $diff < 0 ) {
 900                                 $ret .= str_repeat( "</li></ul>\n", -$diff ) . "</li><li>\n";
 901                         } elseif ( $diff == 0 ) {
 902                                 $ret .= "</li><li>\n";
 903                         } else {
 904                                 $ret .= str_repeat( "<ul><li>\n", $diff );
 905                         }
 906                         $ret .= $display . "\n";
 907
 908                         $curIdent = $ident;
 909                 }
 910
 911                 $ret .= str_repeat( '</li></ul>', $curIdent ) . '</li>';
 912
 913                 return $ret;
 914         }
 915
 916         /**
 917          * This gets called shortly before the </body> tag.
 918          * @return String HTML to be put before </body>
 919          */
 920         function afterContent() {
 921                 $printfooter = "<div class=\"printfooter\">\n" . $this->printFooter() . "</div>\n";
 922                 return $printfooter . $this->generateDebugHTML() . $this->doAfterContent();
 923         }
 924
 925         /**
 926          * This gets called shortly before the </body> tag.
 927          * @param $out OutputPage object
 928          * @return String HTML-wrapped JS code to be put before </body>
 929          */
 930         function bottomScripts( $out ) {
 931                 $bottomScriptText = "\n" . $out->getHeadScripts( $this );
 932                 wfRunHooks( 'SkinAfterBottomScripts', array( $this, &$bottomScriptText ) );
 933
 934                 return $bottomScriptText;
 935         }
 936
 937         /** @return string Retrievied from HTML text */
 938         function printSource() {
 939                 $url = htmlspecialchars( $this->mTitle->getFullURL() );
 940                 return wfMsg( 'retrievedfrom', '<a href="' . $url . '">' . $url . '</a>' );
 941         }
 942
 943         function printFooter() {
 944                 return "<p>" .  $this->printSource() .
 945                         "</p>\n\n<p>" . $this->pageStats() . "</p>\n";
 946         }
 947
 948         /** overloaded by derived classes */
 949         function doAfterContent() {
 950                 return '</div></div>';
 951         }
 952
 953         function pageTitleLinks() {
 954                 global $wgOut, $wgUser, $wgRequest, $wgLang;
 955
 956                 $oldid = $wgRequest->getVal( 'oldid' );
 957                 $diff = $wgRequest->getVal( 'diff' );
 958                 $action = $wgRequest->getText( 'action' );
 959
 960                 $s[] = $this->printableLink();
 961                 $disclaimer = $this->disclaimerLink(); # may be empty
 962
 963                 if ( $disclaimer ) {
 964                         $s[] = $disclaimer;
 965                 }
 966
 967                 $privacy = $this->privacyLink(); # may be empty too
 968
 969                 if ( $privacy ) {
 970                         $s[] = $privacy;
 971                 }
 972
 973                 if ( $wgOut->isArticleRelated() ) {
 974                         if ( $this->mTitle->getNamespace() == NS_FILE ) {
 975                                 $name = $this->mTitle->getDBkey();
 976                                 $image = wfFindFile( $this->mTitle );
 977
 978                                 if ( $image ) {
 979                                         $link = htmlspecialchars( $image->getURL() );
 980                                         $style = $this->getInternalLinkAttributes( $link, $name );
 981                                         $s[] = "<a href=\"{$link}\"{$style}>{$name}</a>";
 982                                 }
 983                         }
 984                 }
 985
 986                 if ( 'history' == $action || isset( $diff ) || isset( $oldid ) ) {
 987                         $s[] .= $this->link(
 988                                         $this->mTitle,
 989                                         wfMsg( 'currentrev' ),
 990                                         array(),
 991                                         array(),
 992                                         array( 'known', 'noclasses' )
 993                         );
 994                 }
 995
 996                 if ( $wgUser->getNewtalk() ) {
 997                         # do not show "You have new messages" text when we are viewing our
 998                         # own talk page
 999                         if ( !$this->mTitle->equals( $wgUser->getTalkPage() ) ) {
1000                                 $tl = $this->link(
1001                                         $wgUser->getTalkPage(),
1002                                         wfMsgHtml( 'newmessageslink' ),
1003                                         array(),
1004                                         array( 'redirect' => 'no' ),
1005                                         array( 'known', 'noclasses' )
1006                                 );
1007
1008                                 $dl = $this->link(
1009                                         $wgUser->getTalkPage(),
1010                                         wfMsgHtml( 'newmessagesdifflink' ),
1011                                         array(),
1012                                         array( 'diff' => 'cur' ),
1013                                         array( 'known', 'noclasses' )
1014                                 );
1015                                 $s[] = '<strong>' . wfMsg( 'youhavenewmessages', $tl, $dl ) . '</strong>';
1016                                 # disable caching
1017                                 $wgOut->setSquidMaxage( 0 );
1018                                 $wgOut->enableClientCache( false );
1019                         }
1020                 }
1021
1022                 $undelete = $this->getUndeleteLink();
1023
1024                 if ( !empty( $undelete ) ) {
1025                         $s[] = $undelete;
1026                 }
1027
1028                 return $wgLang->pipeList( $s );
1029         }
1030
1031         function getUndeleteLink() {
1032                 global $wgUser, $wgLang, $wgRequest;
1033
1034                 $action = $wgRequest->getVal( 'action', 'view' );
1035
1036                 if ( $wgUser->isAllowed( 'deletedhistory' ) &&
1037                         ( $this->mTitle->getArticleId() == 0 || $action == 'history' ) ) {
1038                         $n = $this->mTitle->isDeleted();
1039
1040                         if ( $n ) {
1041                                 if ( $wgUser->isAllowed( 'undelete' ) ) {
1042                                         $msg = 'thisisdeleted';
1043                                 } else {
1044                                         $msg = 'viewdeleted';
1045                                 }
1046
1047                                 return wfMsg(
1048                                         $msg,
1049                                         $this->link(
1050                                                 SpecialPage::getTitleFor( 'Undelete', $this->mTitle->getPrefixedDBkey() ),
1051                                                 wfMsgExt( 'restorelink', array( 'parsemag', 'escape' ), $wgLang->formatNum( $n ) ),
1052                                                 array(),
1053                                                 array(),
1054                                                 array( 'known', 'noclasses' )
1055                                         )
1056                                 );
1057                         }
1058                 }
1059
1060                 return '';
1061         }
1062
1063         function printableLink() {
1064                 global $wgOut, $wgFeedClasses, $wgRequest, $wgLang;
1065
1066                 $s = array();
1067
1068                 if ( !$wgOut->isPrintable() ) {
1069                         $printurl = $wgRequest->escapeAppendQuery( 'printable=yes' );
1070                         $s[] = "<a href=\"$printurl\" rel=\"alternate\">" . wfMsg( 'printableversion' ) . '</a>';
1071                 }
1072
1073                 if ( $wgOut->isSyndicated() ) {
1074                         foreach ( $wgFeedClasses as $format => $class ) {
1075                                 $feedurl = $wgRequest->escapeAppendQuery( "feed=$format" );
1076                                 $s[] = "<a href=\"$feedurl\" rel=\"alternate\" type=\"application/{$format}+xml\""
1077                                                 . " class=\"feedlink\">" . wfMsgHtml( "feed-$format" ) . "</a>";
1078                         }
1079                 }
1080                 return $wgLang->pipeList( $s );
1081         }
1082
1083         /**
1084          * Gets the h1 element with the page title.
1085          * @return string
1086          */
1087         function pageTitle() {
1088                 global $wgOut;
1089                 $s = '<h1 class="pagetitle">' . $wgOut->getPageTitle() . '</h1>';
1090                 return $s;
1091         }
1092
1093         function pageSubtitle() {
1094                 global $wgOut;
1095
1096                 $sub = $wgOut->getSubtitle();
1097
1098                 if ( $sub == '' ) {
1099                         global $wgExtraSubtitle;
1100                         $sub = wfMsgExt( 'tagline', 'parsemag' ) . $wgExtraSubtitle;
1101                 }
1102
1103                 $subpages = $this->subPageSubtitle();
1104                 $sub .= !empty( $subpages ) ? "</p><p class='subpages'>$subpages" : '';
1105                 $s = "<p class='subtitle'>{$sub}</p>\n";
1106
1107                 return $s;
1108         }
1109
1110         function subPageSubtitle() {
1111                 $subpages = '';
1112
1113                 if ( !wfRunHooks( 'SkinSubPageSubtitle', array( &$subpages, $this ) ) ) {
1114                         return $subpages;
1115                 }
1116
1117                 global $wgOut;
1118
1119                 if ( $wgOut->isArticle() && MWNamespace::hasSubpages( $this->mTitle->getNamespace() ) ) {
1120                         $ptext = $this->mTitle->getPrefixedText();
1121                         if ( preg_match( '/\//', $ptext ) ) {
1122                                 $links = explode( '/', $ptext );
1123                                 array_pop( $links );
1124                                 $c = 0;
1125                                 $growinglink = '';
1126                                 $display = '';
1127
1128                                 foreach ( $links as $link ) {
1129                                         $growinglink .= $link;
1130                                         $display .= $link;
1131                                         $linkObj = Title::newFromText( $growinglink );
1132
1133                                         if ( is_object( $linkObj ) && $linkObj->exists() ) {
1134                                                 $getlink = $this->link(
1135                                                         $linkObj,
1136                                                         htmlspecialchars( $display ),
1137                                                         array(),
1138                                                         array(),
1139                                                         array( 'known', 'noclasses' )
1140                                                 );
1141
1142                                                 $c++;
1143
1144                                                 if ( $c > 1 ) {
1145                                                         $subpages .= wfMsgExt( 'pipe-separator', 'escapenoentities' );
1146                                                 } else  {
1147                                                         $subpages .= '&lt; ';
1148                                                 }
1149
1150                                                 $subpages .= $getlink;
1151                                                 $display = '';
1152                                         } else {
1153                                                 $display .= '/';
1154                                         }
1155                                         $growinglink .= '/';
1156                                 }
1157                         }
1158                 }
1159
1160                 return $subpages;
1161         }
1162
1163         /**
1164          * Returns true if the IP should be shown in the header
1165          */
1166         function showIPinHeader() {
1167                 global $wgShowIPinHeader;
1168                 return $wgShowIPinHeader && session_id() != '';
1169         }
1170
1171         function nameAndLogin() {
1172                 global $wgUser, $wgLang, $wgContLang;
1173
1174                 $logoutPage = $wgContLang->specialPage( 'Userlogout' );
1175
1176                 $ret = '';
1177
1178                 if ( $wgUser->isAnon() ) {
1179                         if ( $this->showIPinHeader() ) {
1180                                 $name = wfGetIP();
1181
1182                                 $talkLink = $this->link( $wgUser->getTalkPage(),
1183                                         $wgLang->getNsText( NS_TALK ) );
1184
1185                                 $ret .= "$name ($talkLink)";
1186                         } else {
1187                                 $ret .= wfMsg( 'notloggedin' );
1188                         }
1189
1190                         $returnTo = $this->mTitle->getPrefixedDBkey();
1191                         $query = array();
1192
1193                         if ( $logoutPage != $returnTo ) {
1194                                 $query['returnto'] = $returnTo;
1195                         }
1196
1197                         $loginlink = $wgUser->isAllowed( 'createaccount' )
1198                                 ? 'nav-login-createaccount'
1199                                 : 'login';
1200                         $ret .= "\n<br />" . $this->link(
1201                                 SpecialPage::getTitleFor( 'Userlogin' ),
1202                                 wfMsg( $loginlink ), array(), $query
1203                         );
1204                 } else {
1205                         $returnTo = $this->mTitle->getPrefixedDBkey();
1206                         $talkLink = $this->link( $wgUser->getTalkPage(),
1207                                 $wgLang->getNsText( NS_TALK ) );
1208
1209                         $ret .= $this->link( $wgUser->getUserPage(),
1210                                 htmlspecialchars( $wgUser->getName() ) );
1211                         $ret .= " ($talkLink)<br />";
1212                         $ret .= $wgLang->pipeList( array(
1213                                 $this->link(
1214                                         SpecialPage::getTitleFor( 'Userlogout' ), wfMsg( 'logout' ),
1215                                         array(), array( 'returnto' => $returnTo )
1216                                 ),
1217                                 $this->specialLink( 'Preferences' ),
1218                         ) );
1219                 }
1220
1221                 $ret = $wgLang->pipeList( array(
1222                         $ret,
1223                         $this->link(
1224                                 Title::newFromText( wfMsgForContent( 'helppage' ) ),
1225                                 wfMsg( 'help' )
1226                         ),
1227                 ) );
1228
1229                 return $ret;
1230         }
1231
1232         function getSearchLink() {
1233                 $searchPage = SpecialPage::getTitleFor( 'Search' );
1234                 return $searchPage->getLocalURL();
1235         }
1236
1237         function escapeSearchLink() {
1238                 return htmlspecialchars( $this->getSearchLink() );
1239         }
1240
1241         function searchForm() {
1242                 global $wgRequest, $wgUseTwoButtonsSearchForm;
1243
1244                 $search = $wgRequest->getText( 'search' );
1245
1246                 $s = '<form id="searchform' . $this->searchboxes . '" name="search" class="inline" method="post" action="'
1247                   . $this->escapeSearchLink() . "\">\n"
1248                   . '<input type="text" id="searchInput' . $this->searchboxes . '" name="search" size="19" value="'
1249                   . htmlspecialchars( substr( $search, 0, 256 ) ) . "\" />\n"
1250                   . '<input type="submit" name="go" value="' . wfMsg( 'searcharticle' ) . '" />';
1251
1252                 if ( $wgUseTwoButtonsSearchForm ) {
1253                         $s .= '&#160;<input type="submit" name="fulltext" value="' . wfMsg( 'searchbutton' ) . "\" />\n";
1254                 } else {
1255                         $s .= ' <a href="' . $this->escapeSearchLink() . '" rel="search">' . wfMsg( 'powersearch-legend' ) . "</a>\n";
1256                 }
1257
1258                 $s .= '</form>';
1259
1260                 // Ensure unique id's for search boxes made after the first
1261                 $this->searchboxes = $this->searchboxes == '' ? 2 : $this->searchboxes + 1;
1262
1263                 return $s;
1264         }
1265
1266         function topLinks() {
1267                 global $wgOut;
1268
1269                 $s = array(
1270                         $this->mainPageLink(),
1271                         $this->specialLink( 'Recentchanges' )
1272                 );
1273
1274                 if ( $wgOut->isArticleRelated() ) {
1275                         $s[] = $this->editThisPage();
1276                         $s[] = $this->historyLink();
1277                 }
1278
1279                 # Many people don't like this dropdown box
1280                 # $s[] = $this->specialPagesList();
1281
1282                 if ( $this->variantLinks() ) {
1283                         $s[] = $this->variantLinks();
1284                 }
1285
1286                 if ( $this->extensionTabLinks() ) {
1287                         $s[] = $this->extensionTabLinks();
1288                 }
1289
1290                 // @todo FIXME: Is using Language::pipeList impossible here? Do not quite understand the use of the newline
1291                 return implode( $s, wfMsgExt( 'pipe-separator', 'escapenoentities' ) . "\n" );
1292         }
1293
1294         /**
1295          * Compatibility for extensions adding functionality through tabs.
1296          * Eventually these old skins should be replaced with SkinTemplate-based
1297          * versions, sigh...
1298          * @return string
1299          */
1300         function extensionTabLinks() {
1301                 $tabs = array();
1302                 $out = '';
1303                 $s = array();
1304                 wfRunHooks( 'SkinTemplateTabs', array( $this, &$tabs ) );
1305                 foreach ( $tabs as $tab ) {
1306                         $s[] = Xml::element( 'a',
1307                                 array( 'href' => $tab['href'] ),
1308                                 $tab['text'] );
1309                 }
1310
1311                 if ( count( $s ) ) {
1312                         global $wgLang;
1313
1314                         $out = wfMsgExt( 'pipe-separator' , 'escapenoentities' );
1315                         $out .= $wgLang->pipeList( $s );
1316                 }
1317
1318                 return $out;
1319         }
1320
1321         /**
1322          * Language/charset variant links for classic-style skins
1323          * @return string
1324          */
1325         function variantLinks() {
1326                 $s = '';
1327
1328                 /* show links to different language variants */
1329                 global $wgDisableLangConversion, $wgLang, $wgContLang;
1330
1331                 $variants = $wgContLang->getVariants();
1332
1333                 if ( !$wgDisableLangConversion && sizeof( $variants ) > 1 ) {
1334                         foreach ( $variants as $code ) {
1335                                 $varname = $wgContLang->getVariantname( $code );
1336
1337                                 if ( $varname == 'disable' ) {
1338                                         continue;
1339                                 }
1340                                 $s = $wgLang->pipeList( array(
1341                                         $s,
1342                                         '<a href="' . $this->mTitle->escapeLocalURL( 'variant=' . $code ) . '">' . htmlspecialchars( $varname ) . '</a>'
1343                                 ) );
1344                         }
1345                 }
1346
1347                 return $s;
1348         }
1349
1350         function bottomLinks() {
1351                 global $wgOut, $wgUser, $wgUseTrackbacks;
1352                 $sep = wfMsgExt( 'pipe-separator', 'escapenoentities' ) . "\n";
1353
1354                 $s = '';
1355                 if ( $wgOut->isArticleRelated() ) {
1356                         $element[] = '<strong>' . $this->editThisPage() . '</strong>';
1357
1358                         if ( $wgUser->isLoggedIn() ) {
1359                                 $element[] = $this->watchThisPage();
1360                         }
1361
1362                         $element[] = $this->talkLink();
1363                         $element[] = $this->historyLink();
1364                         $element[] = $this->whatLinksHere();
1365                         $element[] = $this->watchPageLinksLink();
1366
1367                         if ( $wgUseTrackbacks ) {
1368                                 $element[] = $this->trackbackLink();
1369                         }
1370
1371                         if (
1372                                 $this->mTitle->getNamespace() == NS_USER ||
1373                                 $this->mTitle->getNamespace() == NS_USER_TALK
1374                         ) {
1375                                 $id = User::idFromName( $this->mTitle->getText() );
1376                                 $ip = User::isIP( $this->mTitle->getText() );
1377
1378                                 # Both anons and non-anons have contributions list
1379                                 if ( $id || $ip ) {
1380                                         $element[] = $this->userContribsLink();
1381                                 }
1382
1383                                 if ( $this->showEmailUser( $id ) ) {
1384                                         $element[] = $this->emailUserLink();
1385                                 }
1386                         }
1387
1388                         $s = implode( $element, $sep );
1389
1390                         if ( $this->mTitle->getArticleId() ) {
1391                                 $s .= "\n<br />";
1392
1393                                 // Delete/protect/move links for privileged users
1394                                 if ( $wgUser->isAllowed( 'delete' ) ) {
1395                                         $s .= $this->deleteThisPage();
1396                                 }
1397
1398                                 if ( $wgUser->isAllowed( 'protect' ) ) {
1399                                         $s .= $sep . $this->protectThisPage();
1400                                 }
1401
1402                                 if ( $wgUser->isAllowed( 'move' ) ) {
1403                                         $s .= $sep . $this->moveThisPage();
1404                                 }
1405                         }
1406
1407                         $s .= "<br />\n" . $this->otherLanguages();
1408                 }
1409
1410                 return $s;
1411         }
1412
1413         function pageStats() {
1414                 global $wgOut, $wgLang, $wgArticle, $wgRequest, $wgUser;
1415                 global $wgDisableCounters, $wgMaxCredits, $wgShowCreditsIfMax, $wgPageShowWatchingUsers;
1416
1417                 $oldid = $wgRequest->getVal( 'oldid' );
1418                 $diff = $wgRequest->getVal( 'diff' );
1419
1420                 if ( !$wgOut->isArticle() ) {
1421                         return '';
1422                 }
1423
1424                 if ( !$wgArticle instanceof Article ) {
1425                         return '';
1426                 }
1427
1428                 if ( isset( $oldid ) || isset( $diff ) ) {
1429                         return '';
1430                 }
1431
1432                 if ( 0 == $wgArticle->getID() ) {
1433                         return '';
1434                 }
1435
1436                 $s = '';
1437
1438                 if ( !$wgDisableCounters ) {
1439                         $count = $wgLang->formatNum( $wgArticle->getCount() );
1440
1441                         if ( $count ) {
1442                                 $s = wfMsgExt( 'viewcount', array( 'parseinline' ), $count );
1443                         }
1444                 }
1445
1446                 if ( $wgMaxCredits != 0 ) {
1447                         $s .= ' ' . Credits::getCredits( $wgArticle, $wgMaxCredits, $wgShowCreditsIfMax );
1448                 } else {
1449                         $s .= $this->lastModified();
1450                 }
1451
1452                 if ( $wgPageShowWatchingUsers && $wgUser->getOption( 'shownumberswatching' ) ) {
1453                         $dbr = wfGetDB( DB_SLAVE );
1454                         $res = $dbr->select(
1455                                 'watchlist',
1456                                 array( 'COUNT(*) AS n' ),
1457                                 array(
1458                                         'wl_title' => $dbr->strencode( $this->mTitle->getDBkey() ),
1459                                         'wl_namespace' => $this->mTitle->getNamespace()
1460                                 ),
1461                                 __METHOD__
1462                         );
1463                         $x = $dbr->fetchObject( $res );
1464
1465                         $s .= ' ' . wfMsgExt( 'number_of_watching_users_pageview',
1466                                 array( 'parseinline' ), $wgLang->formatNum( $x->n )
1467                         );
1468                 }
1469
1470                 return $s . ' ' .  $this->getCopyright();
1471         }
1472
1473         function getCopyright( $type = 'detect' ) {
1474                 global $wgRightsPage, $wgRightsUrl, $wgRightsText, $wgRequest, $wgArticle;
1475
1476                 if ( $type == 'detect' ) {
1477                         $diff = $wgRequest->getVal( 'diff' );
1478                         $isCur = $wgArticle && $wgArticle->isCurrent();
1479
1480                         if ( is_null( $diff ) && !$isCur && wfMsgForContent( 'history_copyright' ) !== '-' ) {
1481                                 $type = 'history';
1482                         } else {
1483                                 $type = 'normal';
1484                         }
1485                 }
1486
1487                 if ( $type == 'history' ) {
1488                         $msg = 'history_copyright';
1489                 } else {
1490                         $msg = 'copyright';
1491                 }
1492
1493                 $out = '';
1494
1495                 if ( $wgRightsPage ) {
1496                         $title = Title::newFromText( $wgRightsPage );
1497                         $link = $this->linkKnown( $title, $wgRightsText );
1498                 } elseif ( $wgRightsUrl ) {
1499                         $link = $this->makeExternalLink( $wgRightsUrl, $wgRightsText );
1500                 } elseif ( $wgRightsText ) {
1501                         $link = $wgRightsText;
1502                 } else {
1503                         # Give up now
1504                         return $out;
1505                 }
1506
1507                 // Allow for site and per-namespace customization of copyright notice.
1508                 $forContent = true;
1509
1510                 if ( isset( $wgArticle ) ) {
1511                         wfRunHooks( 'SkinCopyrightFooter', array( $wgArticle->getTitle(), $type, &$msg, &$link, &$forContent ) );
1512                 }
1513
1514                 if ( $forContent ) {
1515                         $out .= wfMsgForContent( $msg, $link );
1516                 } else {
1517                         $out .= wfMsg( $msg, $link );
1518                 }
1519
1520                 return $out;
1521         }
1522
1523         function getCopyrightIcon() {
1524                 global $wgRightsUrl, $wgRightsText, $wgRightsIcon, $wgCopyrightIcon;
1525
1526                 $out = '';
1527
1528                 if ( isset( $wgCopyrightIcon ) && $wgCopyrightIcon ) {
1529                         $out = $wgCopyrightIcon;
1530                 } elseif ( $wgRightsIcon ) {
1531                         $icon = htmlspecialchars( $wgRightsIcon );
1532
1533                         if ( $wgRightsUrl ) {
1534                                 $url = htmlspecialchars( $wgRightsUrl );
1535                                 $out .= '<a href="' . $url . '">';
1536                         }
1537
1538                         $text = htmlspecialchars( $wgRightsText );
1539                         $out .= "<img src=\"$icon\" alt=\"$text\" width=\"88\" height=\"31\" />";
1540
1541                         if ( $wgRightsUrl ) {
1542                                 $out .= '</a>';
1543                         }
1544                 }
1545
1546                 return $out;
1547         }
1548
1549         /**
1550          * Gets the powered by MediaWiki icon.
1551          * @return string
1552          */
1553         function getPoweredBy() {
1554                 global $wgStylePath;
1555
1556                 $url = htmlspecialchars( "$wgStylePath/common/images/poweredby_mediawiki_88x31.png" );
1557                 $img = '<a href="http://www.mediawiki.org/"><img src="' . $url . '" height="31" width="88" alt="Powered by MediaWiki" /></a>';
1558
1559                 return $img;
1560         }
1561
1562         function lastModified() {
1563                 global $wgLang, $wgArticle;
1564
1565                 if ( $this->mRevisionId && $this->mRevisionId != $wgArticle->getLatest() ) {
1566                         $timestamp = Revision::getTimestampFromId( $wgArticle->getTitle(), $this->mRevisionId );
1567                 } else {
1568                         $timestamp = $wgArticle->getTimestamp();
1569                 }
1570
1571                 if ( $timestamp ) {
1572                         $d = $wgLang->date( $timestamp, true );
1573                         $t = $wgLang->time( $timestamp, true );
1574                         $s = ' ' . wfMsg( 'lastmodifiedat', $d, $t );
1575                 } else {
1576                         $s = '';
1577                 }
1578
1579                 if ( wfGetLB()->getLaggedSlaveMode() ) {
1580                         $s .= ' <strong>' . wfMsg( 'laggedslavemode' ) . '</strong>';
1581                 }
1582
1583                 return $s;
1584         }
1585
1586         function logoText( $align = '' ) {
1587                 if ( $align != '' ) {
1588                         $a = " align='{$align}'";
1589                 } else {
1590                         $a = '';
1591                 }
1592
1593                 $mp = wfMsg( 'mainpage' );
1594                 $mptitle = Title::newMainPage();
1595                 $url = ( is_object( $mptitle ) ? $mptitle->escapeLocalURL() : '' );
1596
1597                 $logourl = $this->getLogo();
1598                 $s = "<a href='{$url}'><img{$a} src='{$logourl}' alt='[{$mp}]' /></a>";
1599
1600                 return $s;
1601         }
1602
1603         /**
1604          * Show a drop-down box of special pages
1605          */
1606         function specialPagesList() {
1607                 global $wgContLang, $wgServer, $wgRedirectScript;
1608
1609                 $pages = array_merge( SpecialPage::getRegularPages(), SpecialPage::getRestrictedPages() );
1610
1611                 foreach ( $pages as $name => $page ) {
1612                         $pages[$name] = $page->getDescription();
1613                 }
1614
1615                 $go = wfMsg( 'go' );
1616                 $sp = wfMsg( 'specialpages' );
1617                 $spp = $wgContLang->specialPage( 'Specialpages' );
1618
1619                 $s = '<form id="specialpages" method="get" ' .
1620                   'action="' . htmlspecialchars( "{$wgServer}{$wgRedirectScript}" ) . "\">\n";
1621                 $s .= "<select name=\"wpDropdown\">\n";
1622                 $s .= "<option value=\"{$spp}\">{$sp}</option>\n";
1623
1624
1625                 foreach ( $pages as $name => $desc ) {
1626                         $p = $wgContLang->specialPage( $name );
1627                         $s .= "<option value=\"{$p}\">{$desc}</option>\n";
1628                 }
1629
1630                 $s .= "</select>\n";
1631                 $s .= "<input type='submit' value=\"{$go}\" name='redirect' />\n";
1632                 $s .= "</form>\n";
1633
1634                 return $s;
1635         }
1636
1637         /**
1638          * Gets the link to the wiki's main page.
1639          * @return string
1640          */
1641         function mainPageLink() {
1642                 $s = $this->link(
1643                         Title::newMainPage(),
1644                         wfMsg( 'mainpage' ),
1645                         array(),
1646                         array(),
1647                         array( 'known', 'noclasses' )
1648                 );
1649
1650                 return $s;
1651         }
1652
1653         private function footerLink( $desc, $page ) {
1654                 // if the link description has been set to "-" in the default language,
1655                 if ( wfMsgForContent( $desc )  == '-' ) {
1656                         // then it is disabled, for all languages.
1657                         return '';
1658                 } else {
1659                         // Otherwise, we display the link for the user, described in their
1660                         // language (which may or may not be the same as the default language),
1661                         // but we make the link target be the one site-wide page.
1662                         $title = Title::newFromText( wfMsgForContent( $page ) );
1663
1664                         return $this->linkKnown(
1665                                 $title,
1666                                 wfMsgExt( $desc, array( 'parsemag', 'escapenoentities' ) )
1667                         );
1668                 }
1669         }
1670
1671         /**
1672          * Gets the link to the wiki's privacy policy page.
1673          */
1674         function privacyLink() {
1675                 return $this->footerLink( 'privacy', 'privacypage' );
1676         }
1677
1678         /**
1679          * Gets the link to the wiki's about page.
1680          */
1681         function aboutLink() {
1682                 return $this->footerLink( 'aboutsite', 'aboutpage' );
1683         }
1684
1685         /**
1686          * Gets the link to the wiki's general disclaimers page.
1687          */
1688         function disclaimerLink() {
1689                 return $this->footerLink( 'disclaimers', 'disclaimerpage' );
1690         }
1691
1692         function editThisPage() {
1693                 global $wgOut;
1694
1695                 if ( !$wgOut->isArticleRelated() ) {
1696                         $s = wfMsg( 'protectedpage' );
1697                 } else {
1698                         if ( $this->mTitle->quickUserCan( 'edit' ) && $this->mTitle->exists() ) {
1699                                 $t = wfMsg( 'editthispage' );
1700                         } elseif ( $this->mTitle->quickUserCan( 'create' ) && !$this->mTitle->exists() ) {
1701                                 $t = wfMsg( 'create-this-page' );
1702                         } else {
1703                                 $t = wfMsg( 'viewsource' );
1704                         }
1705
1706                         $s = $this->link(
1707                                 $this->mTitle,
1708                                 $t,
1709                                 array(),
1710                                 $this->editUrlOptions(),
1711                                 array( 'known', 'noclasses' )
1712                         );
1713                 }
1714
1715                 return $s;
1716         }
1717
1718         /**
1719          * Return URL options for the 'edit page' link.
1720          * This may include an 'oldid' specifier, if the current page view is such.
1721          *
1722          * @return array
1723          * @private
1724          */
1725         function editUrlOptions() {
1726                 global $wgArticle;
1727
1728                 $options = array( 'action' => 'edit' );
1729
1730                 if ( $this->mRevisionId && ! $wgArticle->isCurrent() ) {
1731                         $options['oldid'] = intval( $this->mRevisionId );
1732                 }
1733
1734                 return $options;
1735         }
1736
1737         function deleteThisPage() {
1738                 global $wgUser, $wgRequest;
1739
1740                 $diff = $wgRequest->getVal( 'diff' );
1741
1742                 if ( $this->mTitle->getArticleId() && ( !$diff ) && $wgUser->isAllowed( 'delete' ) ) {
1743                         $t = wfMsg( 'deletethispage' );
1744
1745                         $s = $this->link(
1746                                 $this->mTitle,
1747                                 $t,
1748                                 array(),
1749                                 array( 'action' => 'delete' ),
1750                                 array( 'known', 'noclasses' )
1751                         );
1752                 } else {
1753                         $s = '';
1754                 }
1755
1756                 return $s;
1757         }
1758
1759         function protectThisPage() {
1760                 global $wgUser, $wgRequest;
1761
1762                 $diff = $wgRequest->getVal( 'diff' );
1763
1764                 if ( $this->mTitle->getArticleId() && ( ! $diff ) && $wgUser->isAllowed( 'protect' ) ) {
1765                         if ( $this->mTitle->isProtected() ) {
1766                                 $text = wfMsg( 'unprotectthispage' );
1767                                 $query = array( 'action' => 'unprotect' );
1768                         } else {
1769                                 $text = wfMsg( 'protectthispage' );
1770                                 $query = array( 'action' => 'protect' );
1771                         }
1772
1773                         $s = $this->link(
1774                                 $this->mTitle,
1775                                 $text,
1776                                 array(),
1777                                 $query,
1778                                 array( 'known', 'noclasses' )
1779                         );
1780                 } else {
1781                         $s = '';
1782                 }
1783
1784                 return $s;
1785         }
1786
1787         function watchThisPage() {
1788                 global $wgOut;
1789                 ++$this->mWatchLinkNum;
1790
1791                 if ( $wgOut->isArticleRelated() ) {
1792                         if ( $this->mTitle->userIsWatching() ) {
1793                                 $text = wfMsg( 'unwatchthispage' );
1794                                 $query = array( 'action' => 'unwatch' );
1795                                 $id = 'mw-unwatch-link' . $this->mWatchLinkNum;
1796                         } else {
1797                                 $text = wfMsg( 'watchthispage' );
1798                                 $query = array( 'action' => 'watch' );
1799                                 $id = 'mw-watch-link' . $this->mWatchLinkNum;
1800                         }
1801
1802                         $s = $this->link(
1803                                 $this->mTitle,
1804                                 $text,
1805                                 array( 'id' => $id ),
1806                                 $query,
1807                                 array( 'known', 'noclasses' )
1808                         );
1809                 } else {
1810                         $s = wfMsg( 'notanarticle' );
1811                 }
1812
1813                 return $s;
1814         }
1815
1816         function moveThisPage() {
1817                 if ( $this->mTitle->quickUserCan( 'move' ) ) {
1818                         return $this->link(
1819                                 SpecialPage::getTitleFor( 'Movepage' ),
1820                                 wfMsg( 'movethispage' ),
1821                                 array(),
1822                                 array( 'target' => $this->mTitle->getPrefixedDBkey() ),
1823                                 array( 'known', 'noclasses' )
1824                         );
1825                 } else {
1826                         // no message if page is protected - would be redundant
1827                         return '';
1828                 }
1829         }
1830
1831         function historyLink() {
1832                 return $this->link(
1833                         $this->mTitle,
1834                         wfMsgHtml( 'history' ),
1835                         array( 'rel' => 'archives' ),
1836                         array( 'action' => 'history' )
1837                 );
1838         }
1839
1840         function whatLinksHere() {
1841                 return $this->link(
1842                         SpecialPage::getTitleFor( 'Whatlinkshere', $this->mTitle->getPrefixedDBkey() ),
1843                         wfMsgHtml( 'whatlinkshere' ),
1844                         array(),
1845                         array(),
1846                         array( 'known', 'noclasses' )
1847                 );
1848         }
1849
1850         function userContribsLink() {
1851                 return $this->link(
1852                         SpecialPage::getTitleFor( 'Contributions', $this->mTitle->getDBkey() ),
1853                         wfMsgHtml( 'contributions' ),
1854                         array(),
1855                         array(),
1856                         array( 'known', 'noclasses' )
1857                 );
1858         }
1859
1860         function showEmailUser( $id ) {
1861                 global $wgUser;
1862                 $targetUser = User::newFromId( $id );
1863                 return $wgUser->canSendEmail() && # the sending user must have a confirmed email address
1864                         $targetUser->canReceiveEmail(); # the target user must have a confirmed email address and allow emails from users
1865         }
1866
1867         function emailUserLink() {
1868                 return $this->link(
1869                         SpecialPage::getTitleFor( 'Emailuser', $this->mTitle->getDBkey() ),
1870                         wfMsg( 'emailuser' ),
1871                         array(),
1872                         array(),
1873                         array( 'known', 'noclasses' )
1874                 );
1875         }
1876
1877         function watchPageLinksLink() {
1878                 global $wgOut;
1879
1880                 if ( !$wgOut->isArticleRelated() ) {
1881                         return '(' . wfMsg( 'notanarticle' ) . ')';
1882                 } else {
1883                         return $this->link(
1884                                 SpecialPage::getTitleFor( 'Recentchangeslinked', $this->mTitle->getPrefixedDBkey() ),
1885                                 wfMsg( 'recentchangeslinked-toolbox' ),
1886                                 array(),
1887                                 array(),
1888                                 array( 'known', 'noclasses' )
1889                         );
1890                 }
1891         }
1892
1893         function trackbackLink() {
1894                 return '<a href="' . $this->mTitle->trackbackURL() . '">'
1895                         . wfMsg( 'trackbacklink' ) . '</a>';
1896         }
1897
1898         function otherLanguages() {
1899                 global $wgOut, $wgContLang, $wgHideInterlanguageLinks;
1900
1901                 if ( $wgHideInterlanguageLinks ) {
1902                         return '';
1903                 }
1904
1905                 $a = $wgOut->getLanguageLinks();
1906
1907                 if ( 0 == count( $a ) ) {
1908                         return '';
1909                 }
1910
1911                 $s = wfMsg( 'otherlanguages' ) . wfMsg( 'colon-separator' );
1912                 $first = true;
1913
1914                 if ( $wgContLang->isRTL() ) {
1915                         $s .= '<span dir="LTR">';
1916                 }
1917
1918                 foreach ( $a as $l ) {
1919                         if ( !$first ) {
1920                                 $s .= wfMsgExt( 'pipe-separator', 'escapenoentities' );
1921                         }
1922
1923                         $first = false;
1924
1925                         $nt = Title::newFromText( $l );
1926                         $url = $nt->escapeFullURL();
1927                         $text = $wgContLang->getLanguageName( $nt->getInterwiki() );
1928                         $title = htmlspecialchars( $nt->getText() );
1929
1930                         if ( $text == '' ) {
1931                                 $text = $l;
1932                         }
1933
1934                         $style = $this->getExternalLinkAttributes();
1935                         $s .= "<a href=\"{$url}\" title=\"{$title}\"{$style}>{$text}</a>";
1936                 }
1937
1938                 if ( $wgContLang->isRTL() ) {
1939                         $s .= '</span>';
1940                 }
1941
1942                 return $s;
1943         }
1944
1945         function talkLink() {
1946                 if ( NS_SPECIAL == $this->mTitle->getNamespace() ) {
1947                         # No discussion links for special pages
1948                         return '';
1949                 }
1950
1951                 $linkOptions = array();
1952
1953                 if ( $this->mTitle->isTalkPage() ) {
1954                         $link = $this->mTitle->getSubjectPage();
1955                         switch( $link->getNamespace() ) {
1956                                 case NS_MAIN:
1957                                         $text = wfMsg( 'articlepage' );
1958                                         break;
1959                                 case NS_USER:
1960                                         $text = wfMsg( 'userpage' );
1961                                         break;
1962                                 case NS_PROJECT:
1963                                         $text = wfMsg( 'projectpage' );
1964                                         break;
1965                                 case NS_FILE:
1966                                         $text = wfMsg( 'imagepage' );
1967                                         # Make link known if image exists, even if the desc. page doesn't.
1968                                         if ( wfFindFile( $link ) )
1969                                                 $linkOptions[] = 'known';
1970                                         break;
1971                                 case NS_MEDIAWIKI:
1972                                         $text = wfMsg( 'mediawikipage' );
1973                                         break;
1974                                 case NS_TEMPLATE:
1975                                         $text = wfMsg( 'templatepage' );
1976                                         break;
1977                                 case NS_HELP:
1978                                         $text = wfMsg( 'viewhelppage' );
1979                                         break;
1980                                 case NS_CATEGORY:
1981                                         $text = wfMsg( 'categorypage' );
1982                                         break;
1983                                 default:
1984                                         $text = wfMsg( 'articlepage' );
1985                         }
1986                 } else {
1987                         $link = $this->mTitle->getTalkPage();
1988                         $text = wfMsg( 'talkpage' );
1989                 }
1990
1991                 $s = $this->link( $link, $text, array(), array(), $linkOptions );
1992
1993                 return $s;
1994         }
1995
1996         function commentLink() {
1997                 global $wgOut;
1998
1999                 if ( $this->mTitle->getNamespace() == NS_SPECIAL ) {
2000                         return '';
2001                 }
2002
2003                 # __NEWSECTIONLINK___ changes behaviour here
2004                 # If it is present, the link points to this page, otherwise
2005                 # it points to the talk page
2006                 if ( $this->mTitle->isTalkPage() ) {
2007                         $title = $this->mTitle;
2008                 } elseif ( $wgOut->showNewSectionLink() ) {
2009                         $title = $this->mTitle;
2010                 } else {
2011                         $title = $this->mTitle->getTalkPage();
2012                 }
2013
2014                 return $this->link(
2015                         $title,
2016                         wfMsg( 'postcomment' ),
2017                         array(),
2018                         array(
2019                                 'action' => 'edit',
2020                                 'section' => 'new'
2021                         ),
2022                         array( 'known', 'noclasses' )
2023                 );
2024         }
2025
2026         function getUploadLink() {
2027                 global $wgUploadNavigationUrl;
2028
2029                 if ( $wgUploadNavigationUrl ) {
2030                         # Using an empty class attribute to avoid automatic setting of "external" class
2031                         return $this->makeExternalLink( $wgUploadNavigationUrl, wfMsgHtml( 'upload' ), false, null, array( 'class' => '' ) );
2032                 } else {
2033                         return $this->link(
2034                                 SpecialPage::getTitleFor( 'Upload' ),
2035                                 wfMsgHtml( 'upload' ),
2036                                 array(),
2037                                 array(),
2038                                 array( 'known', 'noclasses' )
2039                         );
2040                 }
2041         }
2042
2043         /* these are used extensively in SkinTemplate, but also some other places */
2044         static function makeMainPageUrl( $urlaction = '' ) {
2045                 $title = Title::newMainPage();
2046                 self::checkTitle( $title, '' );
2047
2048                 return $title->getLocalURL( $urlaction );
2049         }
2050
2051         static function makeSpecialUrl( $name, $urlaction = '' ) {
2052                 $title = SpecialPage::getTitleFor( $name );
2053                 return $title->getLocalURL( $urlaction );
2054         }
2055
2056         static function makeSpecialUrlSubpage( $name, $subpage, $urlaction = '' ) {
2057                 $title = SpecialPage::getSafeTitleFor( $name, $subpage );
2058                 return $title->getLocalURL( $urlaction );
2059         }
2060
2061         static function makeI18nUrl( $name, $urlaction = '' ) {
2062                 $title = Title::newFromText( wfMsgForContent( $name ) );
2063                 self::checkTitle( $title, $name );
2064                 return $title->getLocalURL( $urlaction );
2065         }
2066
2067         static function makeUrl( $name, $urlaction = '' ) {
2068                 $title = Title::newFromText( $name );
2069                 self::checkTitle( $title, $name );
2070
2071                 return $title->getLocalURL( $urlaction );
2072         }
2073
2074         /**
2075          * If url string starts with http, consider as external URL, else
2076          * internal
2077          */
2078         static function makeInternalOrExternalUrl( $name ) {
2079                 if ( preg_match( '/^(?:' . wfUrlProtocols() . ')/', $name ) ) {
2080                         return $name;
2081                 } else {
2082                         return self::makeUrl( $name );
2083                 }
2084         }
2085
2086         # this can be passed the NS number as defined in Language.php
2087         static function makeNSUrl( $name, $urlaction = '', $namespace = NS_MAIN ) {
2088                 $title = Title::makeTitleSafe( $namespace, $name );
2089                 self::checkTitle( $title, $name );
2090
2091                 return $title->getLocalURL( $urlaction );
2092         }
2093
2094         /* these return an array with the 'href' and boolean 'exists' */
2095         static function makeUrlDetails( $name, $urlaction = '' ) {
2096                 $title = Title::newFromText( $name );
2097                 self::checkTitle( $title, $name );
2098
2099                 return array(
2100                         'href' => $title->getLocalURL( $urlaction ),
2101                         'exists' => $title->getArticleID() != 0,
2102                 );
2103         }
2104
2105         /**
2106          * Make URL details where the article exists (or at least it's convenient to think so)
2107          */
2108         static function makeKnownUrlDetails( $name, $urlaction = '' ) {
2109                 $title = Title::newFromText( $name );
2110                 self::checkTitle( $title, $name );
2111
2112                 return array(
2113                         'href' => $title->getLocalURL( $urlaction ),
2114                         'exists' => true
2115                 );
2116         }
2117
2118         # make sure we have some title to operate on
2119         static function checkTitle( &$title, $name ) {
2120                 if ( !is_object( $title ) ) {
2121                         $title = Title::newFromText( $name );
2122                         if ( !is_object( $title ) ) {
2123                                 $title = Title::newFromText( '--error: link target missing--' );
2124                         }
2125                 }
2126         }
2127
2128         /**
2129          * Build an array that represents the sidebar(s), the navigation bar among them
2130          *
2131          * @return array
2132          */
2133         function buildSidebar() {
2134                 global $parserMemc, $wgEnableSidebarCache, $wgSidebarCacheExpiry;
2135                 global $wgLang;
2136                 wfProfileIn( __METHOD__ );
2137
2138                 $key = wfMemcKey( 'sidebar', $wgLang->getCode() );
2139
2140                 if ( $wgEnableSidebarCache ) {
2141                         $cachedsidebar = $parserMemc->get( $key );
2142                         if ( $cachedsidebar ) {
2143                                 wfProfileOut( __METHOD__ );
2144                                 return $cachedsidebar;
2145                         }
2146                 }
2147
2148                 $bar = array();
2149                 $this->addToSidebar( $bar, 'sidebar' );
2150
2151                 wfRunHooks( 'SkinBuildSidebar', array( $this, &$bar ) );
2152                 if ( $wgEnableSidebarCache ) {
2153                         $parserMemc->set( $key, $bar, $wgSidebarCacheExpiry );
2154                 }
2155
2156                 wfProfileOut( __METHOD__ );
2157                 return $bar;
2158         }
2159         /**
2160          * Add content from a sidebar system message
2161          * Currently only used for MediaWiki:Sidebar (but may be used by Extensions)
2162          *
2163          * This is just a wrapper around addToSidebarPlain() for backwards compatibility
2164          *
2165          * @param &$bar array
2166          * @param $message String
2167          */
2168         function addToSidebar( &$bar, $message ) {
2169                 $this->addToSidebarPlain( $bar, wfMsgForContent( $message ) );
2170         }
2171
2172         /**
2173          * Add content from plain text
2174          * @since 1.17
2175          * @param &$bar array
2176          * @param $text string
2177          */
2178         function addToSidebarPlain( &$bar, $text ) {
2179                 $lines = explode( "\n", $text );
2180                 $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.
2181
2182                 $heading = '';
2183
2184                 foreach ( $lines as $line ) {
2185                         if ( strpos( $line, '*' ) !== 0 ) {
2186                                 continue;
2187                         }
2188
2189                         if ( strpos( $line, '**' ) !== 0 ) {
2190                                 $heading = trim( $line, '* ' );
2191                                 if ( !array_key_exists( $heading, $bar ) ) {
2192                                         $bar[$heading] = array();
2193                                 }
2194                         } else {
2195                                 $line = trim( $line, '* ' );
2196
2197                                 if ( strpos( $line, '|' ) !== false ) { // sanity check
2198                                         $line = array_map( 'trim', explode( '|', $line, 2 ) );
2199                                         $link = wfMsgForContent( $line[0] );
2200
2201                                         if ( $link == '-' ) {
2202                                                 continue;
2203                                         }
2204
2205                                         $text = wfMsgExt( $line[1], 'parsemag' );
2206
2207                                         if ( wfEmptyMsg( $line[1], $text ) ) {
2208                                                 $text = $line[1];
2209                                         }
2210
2211                                         if ( wfEmptyMsg( $line[0], $link ) ) {
2212                                                 $link = $line[0];
2213                                         }
2214
2215                                         if ( preg_match( '/^(?:' . wfUrlProtocols() . ')/', $link ) ) {
2216                                                 $href = $link;
2217                                         } else {
2218                                                 $title = Title::newFromText( $link );
2219
2220                                                 if ( $title ) {
2221                                                         $title = $title->fixSpecialName();
2222                                                         $href = $title->getLocalURL();
2223                                                 } else {
2224                                                         $href = 'INVALID-TITLE';
2225                                                 }
2226                                         }
2227
2228                                         $bar[$heading][] = array(
2229                                                 'text' => $text,
2230                                                 'href' => $href,
2231                                                 'id' => 'n-' . strtr( $line[1], ' ', '-' ),
2232                                                 'active' => false
2233                                         );
2234                                 } else if ( ( substr( $line, 0, 2 ) == '{{' ) && ( substr( $line, -2 ) == '}}' ) ) {
2235                                         global $wgParser, $wgTitle;
2236
2237                                         $line = substr( $line, 2, strlen( $line ) - 4 );
2238
2239                                         $options = new ParserOptions();
2240                                         $options->setEditSection( false );
2241                                         $options->setInterfaceMessage( true );
2242                                         $wikiBar[$heading] = $wgParser->parse( wfMsgForContentNoTrans( $line ) , $wgTitle, $options )->getText();
2243                                 } else {
2244                                         continue;
2245                                 }
2246                         }
2247                 }
2248
2249                 if ( count( $wikiBar ) > 0 ) {
2250                         $bar = array_merge( $bar, $wikiBar );
2251                 }
2252
2253                 return $bar;
2254         }
2255
2256         /**
2257          * Should we include common/wikiprintable.css?  Skins that have their own
2258          * print stylesheet should override this and return false.  (This is an
2259          * ugly hack to get Monobook to play nicely with
2260          * OutputPage::headElement().)
2261          *
2262          * @return bool
2263          */
2264         public function commonPrintStylesheet() {
2265                 return true;
2266         }
2267
2268         /**
2269          * Gets new talk page messages for the current user.
2270          * @return MediaWiki message or if no new talk page messages, nothing
2271          */
2272         function getNewtalks() {
2273                 global $wgUser, $wgOut;
2274
2275                 $newtalks = $wgUser->getNewMessageLinks();
2276                 $ntl = '';
2277
2278                 if ( count( $newtalks ) == 1 && $newtalks[0]['wiki'] === wfWikiID() ) {
2279                         $userTitle = $this->mUser->getUserPage();
2280                         $userTalkTitle = $userTitle->getTalkPage();
2281
2282                         if ( !$userTalkTitle->equals( $this->mTitle ) ) {
2283                                 $newMessagesLink = $this->link(
2284                                         $userTalkTitle,
2285                                         wfMsgHtml( 'newmessageslink' ),
2286                                         array(),
2287                                         array( 'redirect' => 'no' ),
2288                                         array( 'known', 'noclasses' )
2289                                 );
2290
2291                                 $newMessagesDiffLink = $this->link(
2292                                         $userTalkTitle,
2293                                         wfMsgHtml( 'newmessagesdifflink' ),
2294                                         array(),
2295                                         array( 'diff' => 'cur' ),
2296                                         array( 'known', 'noclasses' )
2297                                 );
2298
2299                                 $ntl = wfMsg(
2300                                         'youhavenewmessages',
2301                                         $newMessagesLink,
2302                                         $newMessagesDiffLink
2303                                 );
2304                                 # Disable Squid cache
2305                                 $wgOut->setSquidMaxage( 0 );
2306                         }
2307                 } elseif ( count( $newtalks ) ) {
2308                         // _>" " for BC <= 1.16
2309                         $sep = str_replace( '_', ' ', wfMsgHtml( 'newtalkseparator' ) );
2310                         $msgs = array();
2311
2312                         foreach ( $newtalks as $newtalk ) {
2313                                 $msgs[] = Xml::element(
2314                                         'a',
2315                                         array( 'href' => $newtalk['link'] ), $newtalk['wiki']
2316                                 );
2317                         }
2318                         $parts = implode( $sep, $msgs );
2319                         $ntl = wfMsgHtml( 'youhavenewmessagesmulti', $parts );
2320                         $wgOut->setSquidMaxage( 0 );
2321                 }
2322
2323                 return $ntl;
2324         }
2325 }