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, $wgEnableAPI;
 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                 if ( $wgEnableAPI ) {
 220                         # Real Simple Discovery link, provides auto-discovery information
 221                         # for the MediaWiki API (and potentially additional custom API
 222                         # support such as WordPress or Twitter-compatible APIs for a
 223                         # blogging extension, etc)
 224                         $out->addLink( array(
 225                                 'rel' => 'EditURI',
 226                                 'type' => 'application/rsd+xml',
 227                                 'href' => wfExpandUrl( wfAppendQuery( wfScript( 'api' ), array( 'action' => 'rsd' ) ) ),
 228                         ) );
 229                 }
 230
 231                 $this->addMetadataLinks( $out );
 232
 233                 $this->mRevisionId = $out->mRevisionId;
 234
 235                 $this->preloadExistence();
 236
 237                 wfProfileOut( __METHOD__ );
 238         }
 239
 240         /**
 241          * Preload the existence of three commonly-requested pages in a single query
 242          */
 243         function preloadExistence() {
 244                 global $wgUser;
 245
 246                 // User/talk link
 247                 $titles = array( $wgUser->getUserPage(), $wgUser->getTalkPage() );
 248
 249                 // Other tab link
 250                 if ( $this->mTitle->getNamespace() == NS_SPECIAL ) {
 251                         // nothing
 252                 } elseif ( $this->mTitle->isTalkPage() ) {
 253                         $titles[] = $this->mTitle->getSubjectPage();
 254                 } else {
 255                         $titles[] = $this->mTitle->getTalkPage();
 256                 }
 257
 258                 $lb = new LinkBatch( $titles );
 259                 $lb->setCaller( __METHOD__ );
 260                 $lb->execute();
 261         }
 262
 263         /**
 264          * Adds metadata links below to the HTML output.
 265          * <ol>
 266          *  <li>Creative Commons
 267          *   <br />See http://wiki.creativecommons.org/Extend_Metadata.
 268          *  </li>
 269          *  <li>Dublin Core</li>
 270          *  <li>Use hreflang to specify canonical and alternate links
 271          *   <br />See http://www.google.com/support/webmasters/bin/answer.py?answer=189077
 272          *  </li>
 273          *  <li>Copyright</li>
 274          * <ol>
 275          *
 276          * @param $out Object: instance of OutputPage
 277          */
 278         function addMetadataLinks( OutputPage $out ) {
 279                 global $wgEnableDublinCoreRdf, $wgEnableCreativeCommonsRdf;
 280                 global $wgDisableLangConversion, $wgCanonicalLanguageLinks, $wgContLang;
 281                 global $wgRightsPage, $wgRightsUrl;
 282
 283                 if ( $out->isArticleRelated() ) {
 284                         # note: buggy CC software only reads first "meta" link
 285                         if ( $wgEnableCreativeCommonsRdf ) {
 286                                 $out->addMetadataLink( array(
 287                                         'title' => 'Creative Commons',
 288                                         'type' => 'application/rdf+xml',
 289                                         'href' => $this->mTitle->getLocalURL( 'action=creativecommons' ) )
 290                                 );
 291                         }
 292
 293                         if ( $wgEnableDublinCoreRdf ) {
 294                                 $out->addMetadataLink( array(
 295                                         'title' => 'Dublin Core',
 296                                         'type' => 'application/rdf+xml',
 297                                         'href' => $this->mTitle->getLocalURL( 'action=dublincore' ) )
 298                                 );
 299                         }
 300                 }
 301
 302                 if ( !$wgDisableLangConversion && $wgCanonicalLanguageLinks
 303                         && $wgContLang->hasVariants() ) {
 304
 305                         $urlvar = $wgContLang->getURLVariant();
 306
 307                         if ( !$urlvar ) {
 308                                 $variants = $wgContLang->getVariants();
 309                                 foreach ( $variants as $_v ) {
 310                                         $out->addLink( array(
 311                                                 'rel' => 'alternate',
 312                                                 'hreflang' => $_v,
 313                                                 'href' => $this->mTitle->getLocalURL( '', $_v ) )
 314                                         );
 315                                 }
 316                         } else {
 317                                 $out->addLink( array(
 318                                         'rel' => 'canonical',
 319                                         'href' => $this->mTitle->getFullURL() )
 320                                 );
 321                         }
 322                 }
 323
 324                 $copyright = '';
 325                 if ( $wgRightsPage ) {
 326                         $copy = Title::newFromText( $wgRightsPage );
 327
 328                         if ( $copy ) {
 329                                 $copyright = $copy->getLocalURL();
 330                         }
 331                 }
 332
 333                 if ( !$copyright && $wgRightsUrl ) {
 334                         $copyright = $wgRightsUrl;
 335                 }
 336
 337                 if ( $copyright ) {
 338                         $out->addLink( array(
 339                                 'rel' => 'copyright',
 340                                 'href' => $copyright )
 341                         );
 342                 }
 343         }
 344
 345         /**
 346          * Set some local variables
 347          */
 348         protected function setMembers() {
 349                 global $wgUser;
 350                 $this->mUser = $wgUser;
 351                 $this->userpage = $wgUser->getUserPage()->getPrefixedText();
 352                 $this->usercss = false;
 353         }
 354
 355         /**
 356          * Set the title
 357          * @param $t Title object to use
 358          */
 359         public function setTitle( $t ) {
 360                 $this->mTitle = $t;
 361         }
 362
 363         /** Get the title */
 364         public function getTitle() {
 365                 return $this->mTitle;
 366         }
 367
 368         /**
 369          * Outputs the HTML generated by other functions.
 370          * @param $out Object: instance of OutputPage
 371          */
 372         function outputPage( OutputPage $out ) {
 373                 global $wgDebugComments;
 374                 wfProfileIn( __METHOD__ );
 375
 376                 $this->setMembers();
 377                 $this->initPage( $out );
 378
 379                 // See self::afterContentHook() for documentation
 380                 $afterContent = $this->afterContentHook();
 381
 382                 $out->out( $out->headElement( $this ) );
 383
 384                 if ( $wgDebugComments ) {
 385                         $out->out( "<!-- Wiki debugging output:\n" .
 386                           $out->mDebugtext . "-->\n" );
 387                 }
 388
 389                 $out->out( $this->beforeContent() );
 390
 391                 $out->out( $out->mBodytext . "\n" );
 392
 393                 $out->out( $this->afterContent() );
 394
 395                 $out->out( $afterContent );
 396
 397                 $out->out( $this->bottomScripts( $out ) );
 398
 399                 $out->out( wfReportTime() );
 400
 401                 $out->out( "\n</body></html>" );
 402                 wfProfileOut( __METHOD__ );
 403         }
 404
 405         static function makeVariablesScript( $data ) {
 406                 if ( $data ) {
 407                         return Html::inlineScript(
 408                                 ResourceLoader::makeLoaderConditionalScript( ResourceLoader::makeConfigSetScript( $data ) )
 409                         );
 410                 } else {
 411                         return '';
 412                 }
 413         }
 414
 415         /**
 416          * Make a <script> tag containing global variables
 417          * @param $skinName string Name of the skin
 418          * The odd calling convention is for backwards compatibility
 419          * @todo FIXME: Make this not depend on $wgTitle!
 420          *
 421          * Do not add things here which can be evaluated in ResourceLoaderStartupScript - in other words, without state.
 422          * You will only be adding bloat to the page and causing page caches to have to be purged on configuration changes.
 423          */
 424         static function makeGlobalVariablesScript( $skinName ) {
 425                 global $wgTitle, $wgUser, $wgRequest, $wgArticle, $wgOut, $wgRestrictionTypes, $wgUseAjax, $wgEnableMWSuggest;
 426
 427                 $ns = $wgTitle->getNamespace();
 428                 $nsname = MWNamespace::exists( $ns ) ? MWNamespace::getCanonicalName( $ns ) : $wgTitle->getNsText();
 429                 $vars = array(
 430                         'wgCanonicalNamespace' => $nsname,
 431                         'wgCanonicalSpecialPageName' => $ns == NS_SPECIAL ?
 432                                 SpecialPage::resolveAlias( $wgTitle->getDBkey() ) : false, # bug 21115
 433                         'wgNamespaceNumber' => $wgTitle->getNamespace(),
 434                         'wgPageName' => $wgTitle->getPrefixedDBKey(),
 435                         'wgTitle' => $wgTitle->getText(),
 436                         'wgAction' => $wgRequest->getText( 'action', 'view' ),
 437                         'wgArticleId' => $wgTitle->getArticleId(),
 438                         'wgIsArticle' => $wgOut->isArticle(),
 439                         'wgUserName' => $wgUser->isAnon() ? null : $wgUser->getName(),
 440                         'wgUserGroups' => $wgUser->getEffectiveGroups(),
 441                         'wgCurRevisionId' => isset( $wgArticle ) ? $wgArticle->getLatest() : 0,
 442                         'wgCategories' => $wgOut->getCategories(),
 443                 );
 444                 foreach ( $wgRestrictionTypes as $type ) {
 445                         $vars['wgRestriction' . ucfirst( $type )] = $wgTitle->getRestrictions( $type );
 446                 }
 447                 if ( $wgUseAjax && $wgEnableMWSuggest && !$wgUser->getOption( 'disablesuggest', false ) ) {
 448                         $vars['wgSearchNamespaces'] = SearchEngine::userNamespaces( $wgUser );
 449                 }
 450
 451                 // Allow extensions to add their custom variables to the global JS variables
 452                 wfRunHooks( 'MakeGlobalVariablesScript', array( &$vars ) );
 453
 454                 return self::makeVariablesScript( $vars );
 455         }
 456
 457         /**
 458          * To make it harder for someone to slip a user a fake
 459          * user-JavaScript or user-CSS preview, a random token
 460          * is associated with the login session. If it's not
 461          * passed back with the preview request, we won't render
 462          * the code.
 463          *
 464          * @param $action String: 'edit', 'submit' etc.
 465          * @return bool
 466          */
 467         public function userCanPreview( $action ) {
 468                 global $wgRequest, $wgUser;
 469
 470                 if ( $action != 'submit' ) {
 471                         return false;
 472                 }
 473                 if ( !$wgRequest->wasPosted() ) {
 474                         return false;
 475                 }
 476                 if ( !$this->mTitle->userCanEditCssSubpage() ) {
 477                         return false;
 478                 }
 479                 if ( !$this->mTitle->userCanEditJsSubpage() ) {
 480                         return false;
 481                 }
 482
 483                 return $wgUser->matchEditToken(
 484                         $wgRequest->getVal( 'wpEditToken' ) );
 485         }
 486
 487         /**
 488          * Generated JavaScript action=raw&gen=js
 489          * This returns MediaWiki:Common.js and MediaWiki:[Skinname].js concate-
 490          * nated together.  For some bizarre reason, it does *not* return any
 491          * custom user JS from subpages.  Huh?
 492          *
 493          * There's absolutely no reason to have separate Monobook/Common JSes.
 494          * Any JS that cares can just check the skin variable generated at the
 495          * top.  For now Monobook.js will be maintained, but it should be consi-
 496          * dered deprecated.
 497          *
 498          * @param $skinName String: If set, overrides the skin name
 499          * @return string
 500          */
 501         public function generateUserJs( $skinName = null ) {
 502
 503                 // Stub - see ResourceLoaderSiteModule, CologneBlue, Simple and Standard skins override this
 504
 505                 return '';
 506         }
 507
 508         /**
 509          * Generate user stylesheet for action=raw&gen=css
 510          */
 511         public function generateUserStylesheet() {
 512
 513                 // Stub - see ResourceLoaderUserModule, CologneBlue, Simple and Standard skins override this
 514
 515                 return '';
 516         }
 517
 518         /**
 519          * Split for easier subclassing in SkinSimple, SkinStandard and SkinCologneBlue
 520          * Anything in here won't be generated if $wgAllowUserCssPrefs is false.
 521          */
 522         protected function reallyGenerateUserStylesheet() {
 523
 524                 // Stub - see  ResourceLoaderUserModule, CologneBlue, Simple and Standard skins override this
 525
 526                 return '';
 527         }
 528
 529         /**
 530          * @private
 531          */
 532         function setupUserCss( OutputPage $out ) {
 533                 global $wgRequest;
 534                 global $wgUseSiteCss, $wgAllowUserCss, $wgAllowUserCssPrefs;
 535
 536                 wfProfileIn( __METHOD__ );
 537
 538                 $this->setupSkinUserCss( $out );
 539                 // Add any extension CSS
 540                 foreach ( $out->getExtStyle() as $url ) {
 541                         $out->addStyle( $url );
 542                 }
 543
 544                 // Per-site custom styles
 545                 if ( $wgUseSiteCss ) {
 546                         $out->addModuleStyles( 'site' );
 547                 }
 548
 549                 // Per-user custom styles
 550                 if ( $wgAllowUserCss ) {
 551                         if ( $this->mTitle->isCssSubpage() && $this->userCanPreview( $wgRequest->getVal( 'action' ) ) ) {
 552                                 // @FIXME: properly escape the cdata!
 553                                 $out->addInlineStyle( $wgRequest->getText( 'wpTextbox1' ) );
 554                         } else {
 555                                 $out->addModuleStyles( 'user' );
 556                         }
 557                 }
 558
 559                 // Per-user preference styles
 560                 if ( $wgAllowUserCssPrefs ) {
 561                         $out->addModuleStyles( 'user.options' );
 562                 }
 563
 564                 wfProfileOut( __METHOD__ );
 565         }
 566
 567         /**
 568          * Get the query to generate a dynamic stylesheet
 569          *
 570          * @return array
 571          */
 572         public static function getDynamicStylesheetQuery() {
 573                 global $wgSquidMaxage;
 574
 575                 return array(
 576                                 'action' => 'raw',
 577                                 'maxage' => $wgSquidMaxage,
 578                                 'usemsgcache' => 'yes',
 579                                 'ctype' => 'text/css',
 580                                 'smaxage' => $wgSquidMaxage,
 581                         );
 582         }
 583
 584         /**
 585          * Add skin specific stylesheets
 586          * @param $out OutputPage
 587          */
 588         function setupSkinUserCss( OutputPage $out ) {
 589                 $out->addModuleStyles( 'mediawiki.legacy.shared' );
 590                 $out->addModuleStyles( 'mediawiki.legacy.oldshared' );
 591                 // TODO: When converting old skins to use ResourceLoader (or removing them) the following should be reconsidered
 592                 $out->addStyle( $this->getStylesheet() );
 593                 $out->addStyle( 'common/common_rtl.css', '', '', 'rtl' );
 594         }
 595
 596         function getPageClasses( $title ) {
 597                 $numeric = 'ns-' . $title->getNamespace();
 598
 599                 if ( $title->getNamespace() == NS_SPECIAL ) {
 600                         $type = 'ns-special';
 601                 } elseif ( $title->isTalkPage() ) {
 602                         $type = 'ns-talk';
 603                 } else {
 604                         $type = 'ns-subject';
 605                 }
 606
 607                 $name = Sanitizer::escapeClass( 'page-' . $title->getPrefixedText() );
 608
 609                 return "$numeric $type $name";
 610         }
 611
 612         /**
 613          * This will be called by OutputPage::headElement when it is creating the
 614          * <body> tag, skins can override it if they have a need to add in any
 615          * body attributes or classes of their own.
 616          */
 617         function addToBodyAttributes( $out, &$bodyAttrs ) {
 618                 // does nothing by default
 619         }
 620
 621         /**
 622          * URL to the logo
 623          */
 624         function getLogo() {
 625                 global $wgLogo;
 626                 return $wgLogo;
 627         }
 628
 629         /**
 630          * This will be called immediately after the <body> tag.  Split into
 631          * two functions to make it easier to subclass.
 632          */
 633         function beforeContent() {
 634                 return $this->doBeforeContent();
 635         }
 636
 637         function doBeforeContent() {
 638                 global $wgContLang;
 639                 wfProfileIn( __METHOD__ );
 640
 641                 $s = '';
 642                 $qb = $this->qbSetting();
 643
 644                 $langlinks = $this->otherLanguages();
 645                 if ( $langlinks ) {
 646                         $rows = 2;
 647                         $borderhack = '';
 648                 } else {
 649                         $rows = 1;
 650                         $langlinks = false;
 651                         $borderhack = 'class="top"';
 652                 }
 653
 654                 $s .= "\n<div id='content'>\n<div id='topbar'>\n" .
 655                   "<table border='0' cellspacing='0' width='98%'>\n<tr>\n";
 656
 657                 $shove = ( $qb != 0 );
 658                 $left = ( $qb == 1 || $qb == 3 );
 659
 660                 if ( $wgContLang->isRTL() ) {
 661                         $left = !$left;
 662                 }
 663
 664                 if ( !$shove ) {
 665                         $s .= "<td class='top' align='left' valign='top' rowspan='{$rows}'>\n" .
 666                                 $this->logoText() . '</td>';
 667                 } elseif ( $left ) {
 668                         $s .= $this->getQuickbarCompensator( $rows );
 669                 }
 670
 671                 $l = $wgContLang->alignStart();
 672                 $s .= "<td {$borderhack} align='$l' valign='top'>\n";
 673
 674                 $s .= $this->topLinks();
 675                 $s .= '<p class="subtitle">' . $this->pageTitleLinks() . "</p>\n";
 676
 677                 $r = $wgContLang->alignEnd();
 678                 $s .= "</td>\n<td {$borderhack} valign='top' align='$r' nowrap='nowrap'>";
 679                 $s .= $this->nameAndLogin();
 680                 $s .= "\n<br />" . $this->searchForm() . '</td>';
 681
 682                 if ( $langlinks ) {
 683                         $s .= "</tr>\n<tr>\n<td class='top' colspan=\"2\">$langlinks</td>\n";
 684                 }
 685
 686                 if ( $shove && !$left ) { # Right
 687                         $s .= $this->getQuickbarCompensator( $rows );
 688                 }
 689
 690                 $s .= "</tr>\n</table>\n</div>\n";
 691                 $s .= "\n<div id='article'>\n";
 692
 693                 $notice = wfGetSiteNotice();
 694
 695                 if ( $notice ) {
 696                         $s .= "\n<div id='siteNotice'>$notice</div>\n";
 697                 }
 698                 $s .= $this->pageTitle();
 699                 $s .= $this->pageSubtitle();
 700                 $s .= $this->getCategories();
 701
 702                 wfProfileOut( __METHOD__ );
 703                 return $s;
 704         }
 705
 706         function getCategoryLinks() {
 707                 global $wgOut, $wgUseCategoryBrowser;
 708                 global $wgContLang, $wgUser;
 709
 710                 if ( count( $wgOut->mCategoryLinks ) == 0 ) {
 711                         return '';
 712                 }
 713
 714                 # Separator
 715                 $sep = wfMsgExt( 'catseparator', array( 'parsemag', 'escapenoentities' ) );
 716
 717                 // Use Unicode bidi embedding override characters,
 718                 // to make sure links don't smash each other up in ugly ways.
 719                 $dir = $wgContLang->getDir();
 720                 $embed = "<span dir='$dir'>";
 721                 $pop = '</span>';
 722
 723                 $allCats = $wgOut->getCategoryLinks();
 724                 $s = '';
 725                 $colon = wfMsgExt( 'colon-separator', 'escapenoentities' );
 726
 727                 if ( !empty( $allCats['normal'] ) ) {
 728                         $t = $embed . implode( "{$pop} {$sep} {$embed}" , $allCats['normal'] ) . $pop;
 729
 730                         $msg = wfMsgExt( 'pagecategories', array( 'parsemag', 'escapenoentities' ), count( $allCats['normal'] ) );
 731                         $s .= '<div id="mw-normal-catlinks">' .
 732                                 $this->link( Title::newFromText( wfMsgForContent( 'pagecategorieslink' ) ), $msg )
 733                                 . $colon . $t . '</div>';
 734                 }
 735
 736                 # Hidden categories
 737                 if ( isset( $allCats['hidden'] ) ) {
 738                         if ( $wgUser->getBoolOption( 'showhiddencats' ) ) {
 739                                 $class = 'mw-hidden-cats-user-shown';
 740                         } elseif ( $this->mTitle->getNamespace() == NS_CATEGORY ) {
 741                                 $class = 'mw-hidden-cats-ns-shown';
 742                         } else {
 743                                 $class = 'mw-hidden-cats-hidden';
 744                         }
 745
 746                         $s .= "<div id=\"mw-hidden-catlinks\" class=\"$class\">" .
 747                                 wfMsgExt( 'hidden-categories', array( 'parsemag', 'escapenoentities' ), count( $allCats['hidden'] ) ) .
 748                                 $colon . $embed . implode( "$pop $sep $embed", $allCats['hidden'] ) . $pop .
 749                                 '</div>';
 750                 }
 751
 752                 # optional 'dmoz-like' category browser. Will be shown under the list
 753                 # of categories an article belong to
 754                 if ( $wgUseCategoryBrowser ) {
 755                         $s .= '<br /><hr />';
 756
 757                         # get a big array of the parents tree
 758                         $parenttree = $this->mTitle->getParentCategoryTree();
 759                         # Skin object passed by reference cause it can not be
 760                         # accessed under the method subfunction drawCategoryBrowser
 761                         $tempout = explode( "\n", $this->drawCategoryBrowser( $parenttree, $this ) );
 762                         # Clean out bogus first entry and sort them
 763                         unset( $tempout[0] );
 764                         asort( $tempout );
 765                         # Output one per line
 766                         $s .= implode( "<br />\n", $tempout );
 767                 }
 768
 769                 return $s;
 770         }
 771
 772         /**
 773          * Render the array as a serie of links.
 774          * @param $tree Array: categories tree returned by Title::getParentCategoryTree
 775          * @param &skin Object: skin passed by reference
 776          * @return String separated by &gt;, terminate with "\n"
 777          */
 778         function drawCategoryBrowser( $tree, &$skin ) {
 779                 $return = '';
 780
 781                 foreach ( $tree as $element => $parent ) {
 782                         if ( empty( $parent ) ) {
 783                                 # element start a new list
 784                                 $return .= "\n";
 785                         } else {
 786                                 # grab the others elements
 787                                 $return .= $this->drawCategoryBrowser( $parent, $skin ) . ' &gt; ';
 788                         }
 789
 790                         # add our current element to the list
 791                         $eltitle = Title::newFromText( $element );
 792                         $return .=  $skin->link( $eltitle, $eltitle->getText() );
 793                 }
 794
 795                 return $return;
 796         }
 797
 798         function getCategories() {
 799                 $catlinks = $this->getCategoryLinks();
 800
 801                 $classes = 'catlinks';
 802
 803                 global $wgOut, $wgUser;
 804
 805                 // Check what we're showing
 806                 $allCats = $wgOut->getCategoryLinks();
 807                 $showHidden = $wgUser->getBoolOption( 'showhiddencats' ) ||
 808                                                 $this->mTitle->getNamespace() == NS_CATEGORY;
 809
 810                 if ( empty( $allCats['normal'] ) && !( !empty( $allCats['hidden'] ) && $showHidden ) ) {
 811                         $classes .= ' catlinks-allhidden';
 812                 }
 813
 814                 return "<div id='catlinks' class='$classes'>{$catlinks}</div>";
 815         }
 816
 817         function getQuickbarCompensator( $rows = 1 ) {
 818                 return "<td width='152' rowspan='{$rows}'>&#160;</td>";
 819         }
 820
 821         /**
 822          * This runs a hook to allow extensions placing their stuff after content
 823          * and article metadata (e.g. categories).
 824          * Note: This function has nothing to do with afterContent().
 825          *
 826          * This hook is placed here in order to allow using the same hook for all
 827          * skins, both the SkinTemplate based ones and the older ones, which directly
 828          * use this class to get their data.
 829          *
 830          * The output of this function gets processed in SkinTemplate::outputPage() for
 831          * the SkinTemplate based skins, all other skins should directly echo it.
 832          *
 833          * Returns an empty string by default, if not changed by any hook function.
 834          */
 835         protected function afterContentHook() {
 836                 $data = '';
 837
 838                 if ( wfRunHooks( 'SkinAfterContent', array( &$data, $this ) ) ) {
 839                         // adding just some spaces shouldn't toggle the output
 840                         // of the whole <div/>, so we use trim() here
 841                         if ( trim( $data ) != '' ) {
 842                                 // Doing this here instead of in the skins to
 843                                 // ensure that the div has the same ID in all
 844                                 // skins
 845                                 $data = "<div id='mw-data-after-content'>\n" .
 846                                         "\t$data\n" .
 847                                         "</div>\n";
 848                         }
 849                 } else {
 850                         wfDebug( "Hook SkinAfterContent changed output processing.\n" );
 851                 }
 852
 853                 return $data;
 854         }
 855
 856         /**
 857          * Generate debug data HTML for displaying at the bottom of the main content
 858          * area.
 859          * @return String HTML containing debug data, if enabled (otherwise empty).
 860          */
 861         protected function generateDebugHTML() {
 862                 global $wgShowDebug, $wgOut;
 863
 864                 if ( $wgShowDebug ) {
 865                         $listInternals = $this->formatDebugHTML( $wgOut->mDebugtext );
 866                         return "\n<hr />\n<strong>Debug data:</strong><ul style=\"font-family:monospace;\" id=\"mw-debug-html\">" .
 867                                 $listInternals . "</ul>\n";
 868                 }
 869
 870                 return '';
 871         }
 872
 873         private function formatDebugHTML( $debugText ) {
 874                 $lines = explode( "\n", $debugText );
 875                 $curIdent = 0;
 876                 $ret = '<li>';
 877
 878                 foreach ( $lines as $line ) {
 879                         $display = ltrim( $line );
 880                         $ident = strlen( $line ) - strlen( $display );
 881                         $diff = $ident - $curIdent;
 882
 883                         if ( $display == '' ) {
 884                                 $display = "\xc2\xa0";
 885                         }
 886
 887                         if ( !$ident && $diff < 0 && substr( $display, 0, 9 ) != 'Entering ' && substr( $display, 0, 8 ) != 'Exiting ' ) {
 888                                 $ident = $curIdent;
 889                                 $diff = 0;
 890                                 $display = '<span style="background:yellow;">' . htmlspecialchars( $display ) . '</span>';
 891                         } else {
 892                                 $display = htmlspecialchars( $display );
 893                         }
 894
 895                         if ( $diff < 0 ) {
 896                                 $ret .= str_repeat( "</li></ul>\n", -$diff ) . "</li><li>\n";
 897                         } elseif ( $diff == 0 ) {
 898                                 $ret .= "</li><li>\n";
 899                         } else {
 900                                 $ret .= str_repeat( "<ul><li>\n", $diff );
 901                         }
 902                         $ret .= $display . "\n";
 903
 904                         $curIdent = $ident;
 905                 }
 906
 907                 $ret .= str_repeat( '</li></ul>', $curIdent ) . '</li>';
 908
 909                 return $ret;
 910         }
 911
 912         /**
 913          * This gets called shortly before the </body> tag.
 914          * @return String HTML to be put before </body>
 915          */
 916         function afterContent() {
 917                 $printfooter = "<div class=\"printfooter\">\n" . $this->printFooter() . "</div>\n";
 918                 return $printfooter . $this->generateDebugHTML() . $this->doAfterContent();
 919         }
 920
 921         /**
 922          * This gets called shortly before the </body> tag.
 923          * @param $out OutputPage object
 924          * @return String HTML-wrapped JS code to be put before </body>
 925          */
 926         function bottomScripts( $out ) {
 927                 $bottomScriptText = "\n" . $out->getHeadScripts( $this );
 928                 wfRunHooks( 'SkinAfterBottomScripts', array( $this, &$bottomScriptText ) );
 929
 930                 return $bottomScriptText;
 931         }
 932
 933         /** @return string Retrievied from HTML text */
 934         function printSource() {
 935                 $url = htmlspecialchars( $this->mTitle->getFullURL() );
 936                 return wfMsg( 'retrievedfrom', '<a href="' . $url . '">' . $url . '</a>' );
 937         }
 938
 939         function printFooter() {
 940                 return "<p>" .  $this->printSource() .
 941                         "</p>\n\n<p>" . $this->pageStats() . "</p>\n";
 942         }
 943
 944         /** overloaded by derived classes */
 945         function doAfterContent() {
 946                 return '</div></div>';
 947         }
 948
 949         function pageTitleLinks() {
 950                 global $wgOut, $wgUser, $wgRequest, $wgLang;
 951
 952                 $oldid = $wgRequest->getVal( 'oldid' );
 953                 $diff = $wgRequest->getVal( 'diff' );
 954                 $action = $wgRequest->getText( 'action' );
 955
 956                 $s[] = $this->printableLink();
 957                 $disclaimer = $this->disclaimerLink(); # may be empty
 958
 959                 if ( $disclaimer ) {
 960                         $s[] = $disclaimer;
 961                 }
 962
 963                 $privacy = $this->privacyLink(); # may be empty too
 964
 965                 if ( $privacy ) {
 966                         $s[] = $privacy;
 967                 }
 968
 969                 if ( $wgOut->isArticleRelated() ) {
 970                         if ( $this->mTitle->getNamespace() == NS_FILE ) {
 971                                 $name = $this->mTitle->getDBkey();
 972                                 $image = wfFindFile( $this->mTitle );
 973
 974                                 if ( $image ) {
 975                                         $link = htmlspecialchars( $image->getURL() );
 976                                         $style = $this->getInternalLinkAttributes( $link, $name );
 977                                         $s[] = "<a href=\"{$link}\"{$style}>{$name}</a>";
 978                                 }
 979                         }
 980                 }
 981
 982                 if ( 'history' == $action || isset( $diff ) || isset( $oldid ) ) {
 983                         $s[] .= $this->link(
 984                                         $this->mTitle,
 985                                         wfMsg( 'currentrev' ),
 986                                         array(),
 987                                         array(),
 988                                         array( 'known', 'noclasses' )
 989                         );
 990                 }
 991
 992                 if ( $wgUser->getNewtalk() ) {
 993                         # do not show "You have new messages" text when we are viewing our
 994                         # own talk page
 995                         if ( !$this->mTitle->equals( $wgUser->getTalkPage() ) ) {
 996                                 $tl = $this->link(
 997                                         $wgUser->getTalkPage(),
 998                                         wfMsgHtml( 'newmessageslink' ),
 999                                         array(),
1000                                         array( 'redirect' => 'no' ),
1001                                         array( 'known', 'noclasses' )
1002                                 );
1003
1004                                 $dl = $this->link(
1005                                         $wgUser->getTalkPage(),
1006                                         wfMsgHtml( 'newmessagesdifflink' ),
1007                                         array(),
1008                                         array( 'diff' => 'cur' ),
1009                                         array( 'known', 'noclasses' )
1010                                 );
1011                                 $s[] = '<strong>' . wfMsg( 'youhavenewmessages', $tl, $dl ) . '</strong>';
1012                                 # disable caching
1013                                 $wgOut->setSquidMaxage( 0 );
1014                                 $wgOut->enableClientCache( false );
1015                         }
1016                 }
1017
1018                 $undelete = $this->getUndeleteLink();
1019
1020                 if ( !empty( $undelete ) ) {
1021                         $s[] = $undelete;
1022                 }
1023
1024                 return $wgLang->pipeList( $s );
1025         }
1026
1027         function getUndeleteLink() {
1028                 global $wgUser, $wgLang, $wgRequest;
1029
1030                 $action = $wgRequest->getVal( 'action', 'view' );
1031
1032                 if ( $wgUser->isAllowed( 'deletedhistory' ) &&
1033                         ( $this->mTitle->getArticleId() == 0 || $action == 'history' ) ) {
1034                         $n = $this->mTitle->isDeleted();
1035
1036                         if ( $n ) {
1037                                 if ( $wgUser->isAllowed( 'undelete' ) ) {
1038                                         $msg = 'thisisdeleted';
1039                                 } else {
1040                                         $msg = 'viewdeleted';
1041                                 }
1042
1043                                 return wfMsg(
1044                                         $msg,
1045                                         $this->link(
1046                                                 SpecialPage::getTitleFor( 'Undelete', $this->mTitle->getPrefixedDBkey() ),
1047                                                 wfMsgExt( 'restorelink', array( 'parsemag', 'escape' ), $wgLang->formatNum( $n ) ),
1048                                                 array(),
1049                                                 array(),
1050                                                 array( 'known', 'noclasses' )
1051                                         )
1052                                 );
1053                         }
1054                 }
1055
1056                 return '';
1057         }
1058
1059         function printableLink() {
1060                 global $wgOut, $wgFeedClasses, $wgRequest, $wgLang;
1061
1062                 $s = array();
1063
1064                 if ( !$wgOut->isPrintable() ) {
1065                         $printurl = $wgRequest->escapeAppendQuery( 'printable=yes' );
1066                         $s[] = "<a href=\"$printurl\" rel=\"alternate\">" . wfMsg( 'printableversion' ) . '</a>';
1067                 }
1068
1069                 if ( $wgOut->isSyndicated() ) {
1070                         foreach ( $wgFeedClasses as $format => $class ) {
1071                                 $feedurl = $wgRequest->escapeAppendQuery( "feed=$format" );
1072                                 $s[] = "<a href=\"$feedurl\" rel=\"alternate\" type=\"application/{$format}+xml\""
1073                                                 . " class=\"feedlink\">" . wfMsgHtml( "feed-$format" ) . "</a>";
1074                         }
1075                 }
1076                 return $wgLang->pipeList( $s );
1077         }
1078
1079         /**
1080          * Gets the h1 element with the page title.
1081          * @return string
1082          */
1083         function pageTitle() {
1084                 global $wgOut;
1085                 $s = '<h1 class="pagetitle">' . $wgOut->getPageTitle() . '</h1>';
1086                 return $s;
1087         }
1088
1089         function pageSubtitle() {
1090                 global $wgOut;
1091
1092                 $sub = $wgOut->getSubtitle();
1093
1094                 if ( $sub == '' ) {
1095                         global $wgExtraSubtitle;
1096                         $sub = wfMsgExt( 'tagline', 'parsemag' ) . $wgExtraSubtitle;
1097                 }
1098
1099                 $subpages = $this->subPageSubtitle();
1100                 $sub .= !empty( $subpages ) ? "</p><p class='subpages'>$subpages" : '';
1101                 $s = "<p class='subtitle'>{$sub}</p>\n";
1102
1103                 return $s;
1104         }
1105
1106         function subPageSubtitle() {
1107                 $subpages = '';
1108
1109                 if ( !wfRunHooks( 'SkinSubPageSubtitle', array( &$subpages, $this ) ) ) {
1110                         return $subpages;
1111                 }
1112
1113                 global $wgOut;
1114
1115                 if ( $wgOut->isArticle() && MWNamespace::hasSubpages( $this->mTitle->getNamespace() ) ) {
1116                         $ptext = $this->mTitle->getPrefixedText();
1117                         if ( preg_match( '/\//', $ptext ) ) {
1118                                 $links = explode( '/', $ptext );
1119                                 array_pop( $links );
1120                                 $c = 0;
1121                                 $growinglink = '';
1122                                 $display = '';
1123
1124                                 foreach ( $links as $link ) {
1125                                         $growinglink .= $link;
1126                                         $display .= $link;
1127                                         $linkObj = Title::newFromText( $growinglink );
1128
1129                                         if ( is_object( $linkObj ) && $linkObj->exists() ) {
1130                                                 $getlink = $this->link(
1131                                                         $linkObj,
1132                                                         htmlspecialchars( $display ),
1133                                                         array(),
1134                                                         array(),
1135                                                         array( 'known', 'noclasses' )
1136                                                 );
1137
1138                                                 $c++;
1139
1140                                                 if ( $c > 1 ) {
1141                                                         $subpages .= wfMsgExt( 'pipe-separator', 'escapenoentities' );
1142                                                 } else  {
1143                                                         $subpages .= '&lt; ';
1144                                                 }
1145
1146                                                 $subpages .= $getlink;
1147                                                 $display = '';
1148                                         } else {
1149                                                 $display .= '/';
1150                                         }
1151                                         $growinglink .= '/';
1152                                 }
1153                         }
1154                 }
1155
1156                 return $subpages;
1157         }
1158
1159         /**
1160          * Returns true if the IP should be shown in the header
1161          */
1162         function showIPinHeader() {
1163                 global $wgShowIPinHeader;
1164                 return $wgShowIPinHeader && session_id() != '';
1165         }
1166
1167         function nameAndLogin() {
1168                 global $wgUser, $wgLang, $wgContLang;
1169
1170                 $logoutPage = $wgContLang->specialPage( 'Userlogout' );
1171
1172                 $ret = '';
1173
1174                 if ( $wgUser->isAnon() ) {
1175                         if ( $this->showIPinHeader() ) {
1176                                 $name = wfGetIP();
1177
1178                                 $talkLink = $this->link( $wgUser->getTalkPage(),
1179                                         $wgLang->getNsText( NS_TALK ) );
1180
1181                                 $ret .= "$name ($talkLink)";
1182                         } else {
1183                                 $ret .= wfMsg( 'notloggedin' );
1184                         }
1185
1186                         $returnTo = $this->mTitle->getPrefixedDBkey();
1187                         $query = array();
1188
1189                         if ( $logoutPage != $returnTo ) {
1190                                 $query['returnto'] = $returnTo;
1191                         }
1192
1193                         $loginlink = $wgUser->isAllowed( 'createaccount' )
1194                                 ? 'nav-login-createaccount'
1195                                 : 'login';
1196                         $ret .= "\n<br />" . $this->link(
1197                                 SpecialPage::getTitleFor( 'Userlogin' ),
1198                                 wfMsg( $loginlink ), array(), $query
1199                         );
1200                 } else {
1201                         $returnTo = $this->mTitle->getPrefixedDBkey();
1202                         $talkLink = $this->link( $wgUser->getTalkPage(),
1203                                 $wgLang->getNsText( NS_TALK ) );
1204
1205                         $ret .= $this->link( $wgUser->getUserPage(),
1206                                 htmlspecialchars( $wgUser->getName() ) );
1207                         $ret .= " ($talkLink)<br />";
1208                         $ret .= $wgLang->pipeList( array(
1209                                 $this->link(
1210                                         SpecialPage::getTitleFor( 'Userlogout' ), wfMsg( 'logout' ),
1211                                         array(), array( 'returnto' => $returnTo )
1212                                 ),
1213                                 $this->specialLink( 'Preferences' ),
1214                         ) );
1215                 }
1216
1217                 $ret = $wgLang->pipeList( array(
1218                         $ret,
1219                         $this->link(
1220                                 Title::newFromText( wfMsgForContent( 'helppage' ) ),
1221                                 wfMsg( 'help' )
1222                         ),
1223                 ) );
1224
1225                 return $ret;
1226         }
1227
1228         function getSearchLink() {
1229                 $searchPage = SpecialPage::getTitleFor( 'Search' );
1230                 return $searchPage->getLocalURL();
1231         }
1232
1233         function escapeSearchLink() {
1234                 return htmlspecialchars( $this->getSearchLink() );
1235         }
1236
1237         function searchForm() {
1238                 global $wgRequest, $wgUseTwoButtonsSearchForm;
1239
1240                 $search = $wgRequest->getText( 'search' );
1241
1242                 $s = '<form id="searchform' . $this->searchboxes . '" name="search" class="inline" method="post" action="'
1243                   . $this->escapeSearchLink() . "\">\n"
1244                   . '<input type="text" id="searchInput' . $this->searchboxes . '" name="search" size="19" value="'
1245                   . htmlspecialchars( substr( $search, 0, 256 ) ) . "\" />\n"
1246                   . '<input type="submit" name="go" value="' . wfMsg( 'searcharticle' ) . '" />';
1247
1248                 if ( $wgUseTwoButtonsSearchForm ) {
1249                         $s .= '&#160;<input type="submit" name="fulltext" value="' . wfMsg( 'searchbutton' ) . "\" />\n";
1250                 } else {
1251                         $s .= ' <a href="' . $this->escapeSearchLink() . '" rel="search">' . wfMsg( 'powersearch-legend' ) . "</a>\n";
1252                 }
1253
1254                 $s .= '</form>';
1255
1256                 // Ensure unique id's for search boxes made after the first
1257                 $this->searchboxes = $this->searchboxes == '' ? 2 : $this->searchboxes + 1;
1258
1259                 return $s;
1260         }
1261
1262         function topLinks() {
1263                 global $wgOut;
1264
1265                 $s = array(
1266                         $this->mainPageLink(),
1267                         $this->specialLink( 'Recentchanges' )
1268                 );
1269
1270                 if ( $wgOut->isArticleRelated() ) {
1271                         $s[] = $this->editThisPage();
1272                         $s[] = $this->historyLink();
1273                 }
1274
1275                 # Many people don't like this dropdown box
1276                 # $s[] = $this->specialPagesList();
1277
1278                 if ( $this->variantLinks() ) {
1279                         $s[] = $this->variantLinks();
1280                 }
1281
1282                 if ( $this->extensionTabLinks() ) {
1283                         $s[] = $this->extensionTabLinks();
1284                 }
1285
1286                 // @todo FIXME: Is using Language::pipeList impossible here? Do not quite understand the use of the newline
1287                 return implode( $s, wfMsgExt( 'pipe-separator', 'escapenoentities' ) . "\n" );
1288         }
1289
1290         /**
1291          * Compatibility for extensions adding functionality through tabs.
1292          * Eventually these old skins should be replaced with SkinTemplate-based
1293          * versions, sigh...
1294          * @return string
1295          */
1296         function extensionTabLinks() {
1297                 $tabs = array();
1298                 $out = '';
1299                 $s = array();
1300                 wfRunHooks( 'SkinTemplateTabs', array( $this, &$tabs ) );
1301                 foreach ( $tabs as $tab ) {
1302                         $s[] = Xml::element( 'a',
1303                                 array( 'href' => $tab['href'] ),
1304                                 $tab['text'] );
1305                 }
1306
1307                 if ( count( $s ) ) {
1308                         global $wgLang;
1309
1310                         $out = wfMsgExt( 'pipe-separator' , 'escapenoentities' );
1311                         $out .= $wgLang->pipeList( $s );
1312                 }
1313
1314                 return $out;
1315         }
1316
1317         /**
1318          * Language/charset variant links for classic-style skins
1319          * @return string
1320          */
1321         function variantLinks() {
1322                 $s = '';
1323
1324                 /* show links to different language variants */
1325                 global $wgDisableLangConversion, $wgLang, $wgContLang;
1326
1327                 $variants = $wgContLang->getVariants();
1328
1329                 if ( !$wgDisableLangConversion && sizeof( $variants ) > 1 ) {
1330                         foreach ( $variants as $code ) {
1331                                 $varname = $wgContLang->getVariantname( $code );
1332
1333                                 if ( $varname == 'disable' ) {
1334                                         continue;
1335                                 }
1336                                 $s = $wgLang->pipeList( array(
1337                                         $s,
1338                                         '<a href="' . $this->mTitle->escapeLocalURL( 'variant=' . $code ) . '">' . htmlspecialchars( $varname ) . '</a>'
1339                                 ) );
1340                         }
1341                 }
1342
1343                 return $s;
1344         }
1345
1346         function bottomLinks() {
1347                 global $wgOut, $wgUser, $wgUseTrackbacks;
1348                 $sep = wfMsgExt( 'pipe-separator', 'escapenoentities' ) . "\n";
1349
1350                 $s = '';
1351                 if ( $wgOut->isArticleRelated() ) {
1352                         $element[] = '<strong>' . $this->editThisPage() . '</strong>';
1353
1354                         if ( $wgUser->isLoggedIn() ) {
1355                                 $element[] = $this->watchThisPage();
1356                         }
1357
1358                         $element[] = $this->talkLink();
1359                         $element[] = $this->historyLink();
1360                         $element[] = $this->whatLinksHere();
1361                         $element[] = $this->watchPageLinksLink();
1362
1363                         if ( $wgUseTrackbacks ) {
1364                                 $element[] = $this->trackbackLink();
1365                         }
1366
1367                         if (
1368                                 $this->mTitle->getNamespace() == NS_USER ||
1369                                 $this->mTitle->getNamespace() == NS_USER_TALK
1370                         ) {
1371                                 $id = User::idFromName( $this->mTitle->getText() );
1372                                 $ip = User::isIP( $this->mTitle->getText() );
1373
1374                                 # Both anons and non-anons have contributions list
1375                                 if ( $id || $ip ) {
1376                                         $element[] = $this->userContribsLink();
1377                                 }
1378
1379                                 if ( $this->showEmailUser( $id ) ) {
1380                                         $element[] = $this->emailUserLink();
1381                                 }
1382                         }
1383
1384                         $s = implode( $element, $sep );
1385
1386                         if ( $this->mTitle->getArticleId() ) {
1387                                 $s .= "\n<br />";
1388
1389                                 // Delete/protect/move links for privileged users
1390                                 if ( $wgUser->isAllowed( 'delete' ) ) {
1391                                         $s .= $this->deleteThisPage();
1392                                 }
1393
1394                                 if ( $wgUser->isAllowed( 'protect' ) ) {
1395                                         $s .= $sep . $this->protectThisPage();
1396                                 }
1397
1398                                 if ( $wgUser->isAllowed( 'move' ) ) {
1399                                         $s .= $sep . $this->moveThisPage();
1400                                 }
1401                         }
1402
1403                         $s .= "<br />\n" . $this->otherLanguages();
1404                 }
1405
1406                 return $s;
1407         }
1408
1409         function pageStats() {
1410                 global $wgOut, $wgLang, $wgArticle, $wgRequest, $wgUser;
1411                 global $wgDisableCounters, $wgMaxCredits, $wgShowCreditsIfMax, $wgPageShowWatchingUsers;
1412
1413                 $oldid = $wgRequest->getVal( 'oldid' );
1414                 $diff = $wgRequest->getVal( 'diff' );
1415
1416                 if ( !$wgOut->isArticle() ) {
1417                         return '';
1418                 }
1419
1420                 if ( !$wgArticle instanceof Article ) {
1421                         return '';
1422                 }
1423
1424                 if ( isset( $oldid ) || isset( $diff ) ) {
1425                         return '';
1426                 }
1427
1428                 if ( 0 == $wgArticle->getID() ) {
1429                         return '';
1430                 }
1431
1432                 $s = '';
1433
1434                 if ( !$wgDisableCounters ) {
1435                         $count = $wgLang->formatNum( $wgArticle->getCount() );
1436
1437                         if ( $count ) {
1438                                 $s = wfMsgExt( 'viewcount', array( 'parseinline' ), $count );
1439                         }
1440                 }
1441
1442                 if ( $wgMaxCredits != 0 ) {
1443                         $s .= ' ' . Credits::getCredits( $wgArticle, $wgMaxCredits, $wgShowCreditsIfMax );
1444                 } else {
1445                         $s .= $this->lastModified();
1446                 }
1447
1448                 if ( $wgPageShowWatchingUsers && $wgUser->getOption( 'shownumberswatching' ) ) {
1449                         $dbr = wfGetDB( DB_SLAVE );
1450                         $res = $dbr->select(
1451                                 'watchlist',
1452                                 array( 'COUNT(*) AS n' ),
1453                                 array(
1454                                         'wl_title' => $dbr->strencode( $this->mTitle->getDBkey() ),
1455                                         'wl_namespace' => $this->mTitle->getNamespace()
1456                                 ),
1457                                 __METHOD__
1458                         );
1459                         $x = $dbr->fetchObject( $res );
1460
1461                         $s .= ' ' . wfMsgExt( 'number_of_watching_users_pageview',
1462                                 array( 'parseinline' ), $wgLang->formatNum( $x->n )
1463                         );
1464                 }
1465
1466                 return $s . ' ' .  $this->getCopyright();
1467         }
1468
1469         function getCopyright( $type = 'detect' ) {
1470                 global $wgRightsPage, $wgRightsUrl, $wgRightsText, $wgRequest, $wgArticle;
1471
1472                 if ( $type == 'detect' ) {
1473                         $diff = $wgRequest->getVal( 'diff' );
1474                         $isCur = $wgArticle && $wgArticle->isCurrent();
1475
1476                         if ( is_null( $diff ) && !$isCur && wfMsgForContent( 'history_copyright' ) !== '-' ) {
1477                                 $type = 'history';
1478                         } else {
1479                                 $type = 'normal';
1480                         }
1481                 }
1482
1483                 if ( $type == 'history' ) {
1484                         $msg = 'history_copyright';
1485                 } else {
1486                         $msg = 'copyright';
1487                 }
1488
1489                 $out = '';
1490
1491                 if ( $wgRightsPage ) {
1492                         $title = Title::newFromText( $wgRightsPage );
1493                         $link = $this->linkKnown( $title, $wgRightsText );
1494                 } elseif ( $wgRightsUrl ) {
1495                         $link = $this->makeExternalLink( $wgRightsUrl, $wgRightsText );
1496                 } elseif ( $wgRightsText ) {
1497                         $link = $wgRightsText;
1498                 } else {
1499                         # Give up now
1500                         return $out;
1501                 }
1502
1503                 // Allow for site and per-namespace customization of copyright notice.
1504                 $forContent = true;
1505
1506                 if ( isset( $wgArticle ) ) {
1507                         wfRunHooks( 'SkinCopyrightFooter', array( $wgArticle->getTitle(), $type, &$msg, &$link, &$forContent ) );
1508                 }
1509
1510                 if ( $forContent ) {
1511                         $out .= wfMsgForContent( $msg, $link );
1512                 } else {
1513                         $out .= wfMsg( $msg, $link );
1514                 }
1515
1516                 return $out;
1517         }
1518
1519         function getCopyrightIcon() {
1520                 global $wgRightsUrl, $wgRightsText, $wgRightsIcon, $wgCopyrightIcon;
1521
1522                 $out = '';
1523
1524                 if ( isset( $wgCopyrightIcon ) && $wgCopyrightIcon ) {
1525                         $out = $wgCopyrightIcon;
1526                 } elseif ( $wgRightsIcon ) {
1527                         $icon = htmlspecialchars( $wgRightsIcon );
1528
1529                         if ( $wgRightsUrl ) {
1530                                 $url = htmlspecialchars( $wgRightsUrl );
1531                                 $out .= '<a href="' . $url . '">';
1532                         }
1533
1534                         $text = htmlspecialchars( $wgRightsText );
1535                         $out .= "<img src=\"$icon\" alt=\"$text\" width=\"88\" height=\"31\" />";
1536
1537                         if ( $wgRightsUrl ) {
1538                                 $out .= '</a>';
1539                         }
1540                 }
1541
1542                 return $out;
1543         }
1544
1545         /**
1546          * Gets the powered by MediaWiki icon.
1547          * @return string
1548          */
1549         function getPoweredBy() {
1550                 global $wgStylePath;
1551
1552                 $url = htmlspecialchars( "$wgStylePath/common/images/poweredby_mediawiki_88x31.png" );
1553                 $text = '<a href="http://www.mediawiki.org/"><img src="' . $url . '" height="31" width="88" alt="Powered by MediaWiki" /></a>';
1554                 wfRunHooks( 'SkinGetPoweredBy', array( &$text, $this ) );
1555                 return $text;
1556         }
1557
1558         function lastModified() {
1559                 global $wgLang, $wgArticle;
1560
1561                 if ( $this->mRevisionId && $this->mRevisionId != $wgArticle->getLatest() ) {
1562                         $timestamp = Revision::getTimestampFromId( $wgArticle->getTitle(), $this->mRevisionId );
1563                 } else {
1564                         $timestamp = $wgArticle->getTimestamp();
1565                 }
1566
1567                 if ( $timestamp ) {
1568                         $d = $wgLang->date( $timestamp, true );
1569                         $t = $wgLang->time( $timestamp, true );
1570                         $s = ' ' . wfMsg( 'lastmodifiedat', $d, $t );
1571                 } else {
1572                         $s = '';
1573                 }
1574
1575                 if ( wfGetLB()->getLaggedSlaveMode() ) {
1576                         $s .= ' <strong>' . wfMsg( 'laggedslavemode' ) . '</strong>';
1577                 }
1578
1579                 return $s;
1580         }
1581
1582         function logoText( $align = '' ) {
1583                 if ( $align != '' ) {
1584                         $a = " align='{$align}'";
1585                 } else {
1586                         $a = '';
1587                 }
1588
1589                 $mp = wfMsg( 'mainpage' );
1590                 $mptitle = Title::newMainPage();
1591                 $url = ( is_object( $mptitle ) ? $mptitle->escapeLocalURL() : '' );
1592
1593                 $logourl = $this->getLogo();
1594                 $s = "<a href='{$url}'><img{$a} src='{$logourl}' alt='[{$mp}]' /></a>";
1595
1596                 return $s;
1597         }
1598
1599         /**
1600          * Show a drop-down box of special pages
1601          */
1602         function specialPagesList() {
1603                 global $wgContLang, $wgServer, $wgRedirectScript;
1604
1605                 $pages = array_merge( SpecialPage::getRegularPages(), SpecialPage::getRestrictedPages() );
1606
1607                 foreach ( $pages as $name => $page ) {
1608                         $pages[$name] = $page->getDescription();
1609                 }
1610
1611                 $go = wfMsg( 'go' );
1612                 $sp = wfMsg( 'specialpages' );
1613                 $spp = $wgContLang->specialPage( 'Specialpages' );
1614
1615                 $s = '<form id="specialpages" method="get" ' .
1616                   'action="' . htmlspecialchars( "{$wgServer}{$wgRedirectScript}" ) . "\">\n";
1617                 $s .= "<select name=\"wpDropdown\">\n";
1618                 $s .= "<option value=\"{$spp}\">{$sp}</option>\n";
1619
1620
1621                 foreach ( $pages as $name => $desc ) {
1622                         $p = $wgContLang->specialPage( $name );
1623                         $s .= "<option value=\"{$p}\">{$desc}</option>\n";
1624                 }
1625
1626                 $s .= "</select>\n";
1627                 $s .= "<input type='submit' value=\"{$go}\" name='redirect' />\n";
1628                 $s .= "</form>\n";
1629
1630                 return $s;
1631         }
1632
1633         /**
1634          * Renders a $wgFooterIcons icon acording to the method's arguments
1635          * @param $icon Array: The icon to build the html for, see $wgFooterIcons for the format of this array
1636          * @param $withImage Boolean: Whether to use the icon's image or output a text-only footericon
1637          */
1638         function makeFooterIcon( $icon, $withImage = 'withImage' ) {
1639                 if ( is_string( $icon ) ) {
1640                         $html = $icon;
1641                 } else { // Assuming array
1642                         $url = $icon["url"];
1643                         unset( $icon["url"] );
1644                         if ( isset( $icon["src"] ) && $withImage === 'withImage' ) {
1645                                 $html = Html::element( 'img', $icon ); // do this the lazy way, just pass icon data as an attribute array
1646                         } else {
1647                                 $html = htmlspecialchars( $icon["alt"] );
1648                         }
1649                         if ( $url ) {
1650                                 $html = Html::rawElement( 'a', array( "href" => $url ), $html );
1651                         }
1652                 }
1653                 return $html;
1654         }
1655
1656         /**
1657          * Gets the link to the wiki's main page.
1658          * @return string
1659          */
1660         function mainPageLink() {
1661                 $s = $this->link(
1662                         Title::newMainPage(),
1663                         wfMsg( 'mainpage' ),
1664                         array(),
1665                         array(),
1666                         array( 'known', 'noclasses' )
1667                 );
1668
1669                 return $s;
1670         }
1671
1672         public function footerLink( $desc, $page ) {
1673                 // if the link description has been set to "-" in the default language,
1674                 if ( wfMsgForContent( $desc )  == '-' ) {
1675                         // then it is disabled, for all languages.
1676                         return '';
1677                 } else {
1678                         // Otherwise, we display the link for the user, described in their
1679                         // language (which may or may not be the same as the default language),
1680                         // but we make the link target be the one site-wide page.
1681                         $title = Title::newFromText( wfMsgForContent( $page ) );
1682
1683                         return $this->linkKnown(
1684                                 $title,
1685                                 wfMsgExt( $desc, array( 'parsemag', 'escapenoentities' ) )
1686                         );
1687                 }
1688         }
1689
1690         /**
1691          * Gets the link to the wiki's privacy policy page.
1692          */
1693         function privacyLink() {
1694                 return $this->footerLink( 'privacy', 'privacypage' );
1695         }
1696
1697         /**
1698          * Gets the link to the wiki's about page.
1699          */
1700         function aboutLink() {
1701                 return $this->footerLink( 'aboutsite', 'aboutpage' );
1702         }
1703
1704         /**
1705          * Gets the link to the wiki's general disclaimers page.
1706          */
1707         function disclaimerLink() {
1708                 return $this->footerLink( 'disclaimers', 'disclaimerpage' );
1709         }
1710
1711         function editThisPage() {
1712                 global $wgOut;
1713
1714                 if ( !$wgOut->isArticleRelated() ) {
1715                         $s = wfMsg( 'protectedpage' );
1716                 } else {
1717                         if ( $this->mTitle->quickUserCan( 'edit' ) && $this->mTitle->exists() ) {
1718                                 $t = wfMsg( 'editthispage' );
1719                         } elseif ( $this->mTitle->quickUserCan( 'create' ) && !$this->mTitle->exists() ) {
1720                                 $t = wfMsg( 'create-this-page' );
1721                         } else {
1722                                 $t = wfMsg( 'viewsource' );
1723                         }
1724
1725                         $s = $this->link(
1726                                 $this->mTitle,
1727                                 $t,
1728                                 array(),
1729                                 $this->editUrlOptions(),
1730                                 array( 'known', 'noclasses' )
1731                         );
1732                 }
1733
1734                 return $s;
1735         }
1736
1737         /**
1738          * Return URL options for the 'edit page' link.
1739          * This may include an 'oldid' specifier, if the current page view is such.
1740          *
1741          * @return array
1742          * @private
1743          */
1744         function editUrlOptions() {
1745                 global $wgArticle;
1746
1747                 $options = array( 'action' => 'edit' );
1748
1749                 if ( $this->mRevisionId && ! $wgArticle->isCurrent() ) {
1750                         $options['oldid'] = intval( $this->mRevisionId );
1751                 }
1752
1753                 return $options;
1754         }
1755
1756         function deleteThisPage() {
1757                 global $wgUser, $wgRequest;
1758
1759                 $diff = $wgRequest->getVal( 'diff' );
1760
1761                 if ( $this->mTitle->getArticleId() && ( !$diff ) && $wgUser->isAllowed( 'delete' ) ) {
1762                         $t = wfMsg( 'deletethispage' );
1763
1764                         $s = $this->link(
1765                                 $this->mTitle,
1766                                 $t,
1767                                 array(),
1768                                 array( 'action' => 'delete' ),
1769                                 array( 'known', 'noclasses' )
1770                         );
1771                 } else {
1772                         $s = '';
1773                 }
1774
1775                 return $s;
1776         }
1777
1778         function protectThisPage() {
1779                 global $wgUser, $wgRequest;
1780
1781                 $diff = $wgRequest->getVal( 'diff' );
1782
1783                 if ( $this->mTitle->getArticleId() && ( ! $diff ) && $wgUser->isAllowed( 'protect' ) ) {
1784                         if ( $this->mTitle->isProtected() ) {
1785                                 $text = wfMsg( 'unprotectthispage' );
1786                                 $query = array( 'action' => 'unprotect' );
1787                         } else {
1788                                 $text = wfMsg( 'protectthispage' );
1789                                 $query = array( 'action' => 'protect' );
1790                         }
1791
1792                         $s = $this->link(
1793                                 $this->mTitle,
1794                                 $text,
1795                                 array(),
1796                                 $query,
1797                                 array( 'known', 'noclasses' )
1798                         );
1799                 } else {
1800                         $s = '';
1801                 }
1802
1803                 return $s;
1804         }
1805
1806         function watchThisPage() {
1807                 global $wgOut;
1808                 ++$this->mWatchLinkNum;
1809
1810                 if ( $wgOut->isArticleRelated() ) {
1811                         if ( $this->mTitle->userIsWatching() ) {
1812                                 $text = wfMsg( 'unwatchthispage' );
1813                                 $query = array( 'action' => 'unwatch' );
1814                                 $id = 'mw-unwatch-link' . $this->mWatchLinkNum;
1815                         } else {
1816                                 $text = wfMsg( 'watchthispage' );
1817                                 $query = array( 'action' => 'watch' );
1818                                 $id = 'mw-watch-link' . $this->mWatchLinkNum;
1819                         }
1820
1821                         $s = $this->link(
1822                                 $this->mTitle,
1823                                 $text,
1824                                 array( 'id' => $id ),
1825                                 $query,
1826                                 array( 'known', 'noclasses' )
1827                         );
1828                 } else {
1829                         $s = wfMsg( 'notanarticle' );
1830                 }
1831
1832                 return $s;
1833         }
1834
1835         function moveThisPage() {
1836                 if ( $this->mTitle->quickUserCan( 'move' ) ) {
1837                         return $this->link(
1838                                 SpecialPage::getTitleFor( 'Movepage' ),
1839                                 wfMsg( 'movethispage' ),
1840                                 array(),
1841                                 array( 'target' => $this->mTitle->getPrefixedDBkey() ),
1842                                 array( 'known', 'noclasses' )
1843                         );
1844                 } else {
1845                         // no message if page is protected - would be redundant
1846                         return '';
1847                 }
1848         }
1849
1850         function historyLink() {
1851                 return $this->link(
1852                         $this->mTitle,
1853                         wfMsgHtml( 'history' ),
1854                         array( 'rel' => 'archives' ),
1855                         array( 'action' => 'history' )
1856                 );
1857         }
1858
1859         function whatLinksHere() {
1860                 return $this->link(
1861                         SpecialPage::getTitleFor( 'Whatlinkshere', $this->mTitle->getPrefixedDBkey() ),
1862                         wfMsgHtml( 'whatlinkshere' ),
1863                         array(),
1864                         array(),
1865                         array( 'known', 'noclasses' )
1866                 );
1867         }
1868
1869         function userContribsLink() {
1870                 return $this->link(
1871                         SpecialPage::getTitleFor( 'Contributions', $this->mTitle->getDBkey() ),
1872                         wfMsgHtml( 'contributions' ),
1873                         array(),
1874                         array(),
1875                         array( 'known', 'noclasses' )
1876                 );
1877         }
1878
1879         function showEmailUser( $id ) {
1880                 global $wgUser;
1881                 $targetUser = User::newFromId( $id );
1882                 return $wgUser->canSendEmail() && # the sending user must have a confirmed email address
1883                         $targetUser->canReceiveEmail(); # the target user must have a confirmed email address and allow emails from users
1884         }
1885
1886         function emailUserLink() {
1887                 return $this->link(
1888                         SpecialPage::getTitleFor( 'Emailuser', $this->mTitle->getDBkey() ),
1889                         wfMsg( 'emailuser' ),
1890                         array(),
1891                         array(),
1892                         array( 'known', 'noclasses' )
1893                 );
1894         }
1895
1896         function watchPageLinksLink() {
1897                 global $wgOut;
1898
1899                 if ( !$wgOut->isArticleRelated() ) {
1900                         return '(' . wfMsg( 'notanarticle' ) . ')';
1901                 } else {
1902                         return $this->link(
1903                                 SpecialPage::getTitleFor( 'Recentchangeslinked', $this->mTitle->getPrefixedDBkey() ),
1904                                 wfMsg( 'recentchangeslinked-toolbox' ),
1905                                 array(),
1906                                 array(),
1907                                 array( 'known', 'noclasses' )
1908                         );
1909                 }
1910         }
1911
1912         function trackbackLink() {
1913                 return '<a href="' . $this->mTitle->trackbackURL() . '">'
1914                         . wfMsg( 'trackbacklink' ) . '</a>';
1915         }
1916
1917         function otherLanguages() {
1918                 global $wgOut, $wgContLang, $wgHideInterlanguageLinks;
1919
1920                 if ( $wgHideInterlanguageLinks ) {
1921                         return '';
1922                 }
1923
1924                 $a = $wgOut->getLanguageLinks();
1925
1926                 if ( 0 == count( $a ) ) {
1927                         return '';
1928                 }
1929
1930                 $s = wfMsg( 'otherlanguages' ) . wfMsg( 'colon-separator' );
1931                 $first = true;
1932
1933                 if ( $wgContLang->isRTL() ) {
1934                         $s .= '<span dir="LTR">';
1935                 }
1936
1937                 foreach ( $a as $l ) {
1938                         if ( !$first ) {
1939                                 $s .= wfMsgExt( 'pipe-separator', 'escapenoentities' );
1940                         }
1941
1942                         $first = false;
1943
1944                         $nt = Title::newFromText( $l );
1945                         $url = $nt->escapeFullURL();
1946                         $text = $wgContLang->getLanguageName( $nt->getInterwiki() );
1947                         $title = htmlspecialchars( $nt->getText() );
1948
1949                         if ( $text == '' ) {
1950                                 $text = $l;
1951                         }
1952
1953                         $style = $this->getExternalLinkAttributes();
1954                         $s .= "<a href=\"{$url}\" title=\"{$title}\"{$style}>{$text}</a>";
1955                 }
1956
1957                 if ( $wgContLang->isRTL() ) {
1958                         $s .= '</span>';
1959                 }
1960
1961                 return $s;
1962         }
1963
1964         function talkLink() {
1965                 if ( NS_SPECIAL == $this->mTitle->getNamespace() ) {
1966                         # No discussion links for special pages
1967                         return '';
1968                 }
1969
1970                 $linkOptions = array();
1971
1972                 if ( $this->mTitle->isTalkPage() ) {
1973                         $link = $this->mTitle->getSubjectPage();
1974                         switch( $link->getNamespace() ) {
1975                                 case NS_MAIN:
1976                                         $text = wfMsg( 'articlepage' );
1977                                         break;
1978                                 case NS_USER:
1979                                         $text = wfMsg( 'userpage' );
1980                                         break;
1981                                 case NS_PROJECT:
1982                                         $text = wfMsg( 'projectpage' );
1983                                         break;
1984                                 case NS_FILE:
1985                                         $text = wfMsg( 'imagepage' );
1986                                         # Make link known if image exists, even if the desc. page doesn't.
1987                                         if ( wfFindFile( $link ) )
1988                                                 $linkOptions[] = 'known';
1989                                         break;
1990                                 case NS_MEDIAWIKI:
1991                                         $text = wfMsg( 'mediawikipage' );
1992                                         break;
1993                                 case NS_TEMPLATE:
1994                                         $text = wfMsg( 'templatepage' );
1995                                         break;
1996                                 case NS_HELP:
1997                                         $text = wfMsg( 'viewhelppage' );
1998                                         break;
1999                                 case NS_CATEGORY:
2000                                         $text = wfMsg( 'categorypage' );
2001                                         break;
2002                                 default:
2003                                         $text = wfMsg( 'articlepage' );
2004                         }
2005                 } else {
2006                         $link = $this->mTitle->getTalkPage();
2007                         $text = wfMsg( 'talkpage' );
2008                 }
2009
2010                 $s = $this->link( $link, $text, array(), array(), $linkOptions );
2011
2012                 return $s;
2013         }
2014
2015         function commentLink() {
2016                 global $wgOut;
2017
2018                 if ( $this->mTitle->getNamespace() == NS_SPECIAL ) {
2019                         return '';
2020                 }
2021
2022                 # __NEWSECTIONLINK___ changes behaviour here
2023                 # If it is present, the link points to this page, otherwise
2024                 # it points to the talk page
2025                 if ( $this->mTitle->isTalkPage() ) {
2026                         $title = $this->mTitle;
2027                 } elseif ( $wgOut->showNewSectionLink() ) {
2028                         $title = $this->mTitle;
2029                 } else {
2030                         $title = $this->mTitle->getTalkPage();
2031                 }
2032
2033                 return $this->link(
2034                         $title,
2035                         wfMsg( 'postcomment' ),
2036                         array(),
2037                         array(
2038                                 'action' => 'edit',
2039                                 'section' => 'new'
2040                         ),
2041                         array( 'known', 'noclasses' )
2042                 );
2043         }
2044
2045         function getUploadLink() {
2046                 global $wgUploadNavigationUrl;
2047
2048                 if ( $wgUploadNavigationUrl ) {
2049                         # Using an empty class attribute to avoid automatic setting of "external" class
2050                         return $this->makeExternalLink( $wgUploadNavigationUrl, wfMsgHtml( 'upload' ), false, null, array( 'class' => '' ) );
2051                 } else {
2052                         return $this->link(
2053                                 SpecialPage::getTitleFor( 'Upload' ),
2054                                 wfMsgHtml( 'upload' ),
2055                                 array(),
2056                                 array(),
2057                                 array( 'known', 'noclasses' )
2058                         );
2059                 }
2060         }
2061
2062         /**
2063          * Return a fully resolved style path url to images or styles stored in the common folder.
2064          * This method returns a url resolved using the configured skin style path
2065          * and includes the style version inside of the url.
2066          * @param $name String: The name or path of a skin resource file
2067          * @return String The fully resolved style path url including styleversion
2068          */
2069         function getCommonStylePath( $name ) {
2070                 global $wgStylePath, $wgStyleVersion;
2071                 return "$wgStylePath/common/$name?$wgStyleVersion";
2072         }
2073
2074         /**
2075          * Return a fully resolved style path url to images or styles stored in the curent skins's folder.
2076          * This method returns a url resolved using the configured skin style path
2077          * and includes the style version inside of the url.
2078          * @param $name String: The name or path of a skin resource file
2079          * @return String The fully resolved style path url including styleversion
2080          */
2081         function getSkinStylePath( $name ) {
2082                 global $wgStylePath, $wgStyleVersion;
2083                 return "$wgStylePath/{$this->stylename}/$name?$wgStyleVersion";
2084         }
2085
2086         /* these are used extensively in SkinTemplate, but also some other places */
2087         static function makeMainPageUrl( $urlaction = '' ) {
2088                 $title = Title::newMainPage();
2089                 self::checkTitle( $title, '' );
2090
2091                 return $title->getLocalURL( $urlaction );
2092         }
2093
2094         static function makeSpecialUrl( $name, $urlaction = '' ) {
2095                 $title = SpecialPage::getTitleFor( $name );
2096                 return $title->getLocalURL( $urlaction );
2097         }
2098
2099         static function makeSpecialUrlSubpage( $name, $subpage, $urlaction = '' ) {
2100                 $title = SpecialPage::getSafeTitleFor( $name, $subpage );
2101                 return $title->getLocalURL( $urlaction );
2102         }
2103
2104         static function makeI18nUrl( $name, $urlaction = '' ) {
2105                 $title = Title::newFromText( wfMsgForContent( $name ) );
2106                 self::checkTitle( $title, $name );
2107                 return $title->getLocalURL( $urlaction );
2108         }
2109
2110         static function makeUrl( $name, $urlaction = '' ) {
2111                 $title = Title::newFromText( $name );
2112                 self::checkTitle( $title, $name );
2113
2114                 return $title->getLocalURL( $urlaction );
2115         }
2116
2117         /**
2118          * If url string starts with http, consider as external URL, else
2119          * internal
2120          */
2121         static function makeInternalOrExternalUrl( $name ) {
2122                 if ( preg_match( '/^(?:' . wfUrlProtocols() . ')/', $name ) ) {
2123                         return $name;
2124                 } else {
2125                         return self::makeUrl( $name );
2126                 }
2127         }
2128
2129         # this can be passed the NS number as defined in Language.php
2130         static function makeNSUrl( $name, $urlaction = '', $namespace = NS_MAIN ) {
2131                 $title = Title::makeTitleSafe( $namespace, $name );
2132                 self::checkTitle( $title, $name );
2133
2134                 return $title->getLocalURL( $urlaction );
2135         }
2136
2137         /* these return an array with the 'href' and boolean 'exists' */
2138         static function makeUrlDetails( $name, $urlaction = '' ) {
2139                 $title = Title::newFromText( $name );
2140                 self::checkTitle( $title, $name );
2141
2142                 return array(
2143                         'href' => $title->getLocalURL( $urlaction ),
2144                         'exists' => $title->getArticleID() != 0,
2145                 );
2146         }
2147
2148         /**
2149          * Make URL details where the article exists (or at least it's convenient to think so)
2150          */
2151         static function makeKnownUrlDetails( $name, $urlaction = '' ) {
2152                 $title = Title::newFromText( $name );
2153                 self::checkTitle( $title, $name );
2154
2155                 return array(
2156                         'href' => $title->getLocalURL( $urlaction ),
2157                         'exists' => true
2158                 );
2159         }
2160
2161         # make sure we have some title to operate on
2162         static function checkTitle( &$title, $name ) {
2163                 if ( !is_object( $title ) ) {
2164                         $title = Title::newFromText( $name );
2165                         if ( !is_object( $title ) ) {
2166                                 $title = Title::newFromText( '--error: link target missing--' );
2167                         }
2168                 }
2169         }
2170
2171         /**
2172          * Build an array that represents the sidebar(s), the navigation bar among them
2173          *
2174          * @return array
2175          */
2176         function buildSidebar() {
2177                 global $parserMemc, $wgEnableSidebarCache, $wgSidebarCacheExpiry;
2178                 global $wgLang;
2179                 wfProfileIn( __METHOD__ );
2180
2181                 $key = wfMemcKey( 'sidebar', $wgLang->getCode() );
2182
2183                 if ( $wgEnableSidebarCache ) {
2184                         $cachedsidebar = $parserMemc->get( $key );
2185                         if ( $cachedsidebar ) {
2186                                 wfProfileOut( __METHOD__ );
2187                                 return $cachedsidebar;
2188                         }
2189                 }
2190
2191                 $bar = array();
2192                 $this->addToSidebar( $bar, 'sidebar' );
2193
2194                 wfRunHooks( 'SkinBuildSidebar', array( $this, &$bar ) );
2195                 if ( $wgEnableSidebarCache ) {
2196                         $parserMemc->set( $key, $bar, $wgSidebarCacheExpiry );
2197                 }
2198
2199                 wfProfileOut( __METHOD__ );
2200                 return $bar;
2201         }
2202         /**
2203          * Add content from a sidebar system message
2204          * Currently only used for MediaWiki:Sidebar (but may be used by Extensions)
2205          *
2206          * This is just a wrapper around addToSidebarPlain() for backwards compatibility
2207          *
2208          * @param &$bar array
2209          * @param $message String
2210          */
2211         function addToSidebar( &$bar, $message ) {
2212                 $this->addToSidebarPlain( $bar, wfMsgForContent( $message ) );
2213         }
2214
2215         /**
2216          * Add content from plain text
2217          * @since 1.17
2218          * @param &$bar array
2219          * @param $text string
2220          */
2221         function addToSidebarPlain( &$bar, $text ) {
2222                 $lines = explode( "\n", $text );
2223                 $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.
2224
2225                 $heading = '';
2226
2227                 foreach ( $lines as $line ) {
2228                         if ( strpos( $line, '*' ) !== 0 ) {
2229                                 continue;
2230                         }
2231
2232                         if ( strpos( $line, '**' ) !== 0 ) {
2233                                 $heading = trim( $line, '* ' );
2234                                 if ( !array_key_exists( $heading, $bar ) ) {
2235                                         $bar[$heading] = array();
2236                                 }
2237                         } else {
2238                                 $line = trim( $line, '* ' );
2239
2240                                 if ( strpos( $line, '|' ) !== false ) { // sanity check
2241                                         $line = array_map( 'trim', explode( '|', $line, 2 ) );
2242                                         $link = wfMsgForContent( $line[0] );
2243
2244                                         if ( $link == '-' ) {
2245                                                 continue;
2246                                         }
2247
2248                                         $text = wfMsgExt( $line[1], 'parsemag' );
2249
2250                                         if ( wfEmptyMsg( $line[1], $text ) ) {
2251                                                 $text = $line[1];
2252                                         }
2253
2254                                         if ( wfEmptyMsg( $line[0], $link ) ) {
2255                                                 $link = $line[0];
2256                                         }
2257
2258                                         if ( preg_match( '/^(?:' . wfUrlProtocols() . ')/', $link ) ) {
2259                                                 $href = $link;
2260                                         } else {
2261                                                 $title = Title::newFromText( $link );
2262
2263                                                 if ( $title ) {
2264                                                         $title = $title->fixSpecialName();
2265                                                         $href = $title->getLocalURL();
2266                                                 } else {
2267                                                         $href = 'INVALID-TITLE';
2268                                                 }
2269                                         }
2270
2271                                         $bar[$heading][] = array(
2272                                                 'text' => $text,
2273                                                 'href' => $href,
2274                                                 'id' => 'n-' . strtr( $line[1], ' ', '-' ),
2275                                                 'active' => false
2276                                         );
2277                                 } else if ( ( substr( $line, 0, 2 ) == '{{' ) && ( substr( $line, -2 ) == '}}' ) ) {
2278                                         global $wgParser, $wgTitle;
2279
2280                                         $line = substr( $line, 2, strlen( $line ) - 4 );
2281
2282                                         $options = new ParserOptions();
2283                                         $options->setEditSection( false );
2284                                         $options->setInterfaceMessage( true );
2285                                         $wikiBar[$heading] = $wgParser->parse( wfMsgForContentNoTrans( $line ) , $wgTitle, $options )->getText();
2286                                 } else {
2287                                         continue;
2288                                 }
2289                         }
2290                 }
2291
2292                 if ( count( $wikiBar ) > 0 ) {
2293                         $bar = array_merge( $bar, $wikiBar );
2294                 }
2295
2296                 return $bar;
2297         }
2298
2299         /**
2300          * Should we include common/wikiprintable.css?  Skins that have their own
2301          * print stylesheet should override this and return false.  (This is an
2302          * ugly hack to get Monobook to play nicely with
2303          * OutputPage::headElement().)
2304          *
2305          * @return bool
2306          */
2307         public function commonPrintStylesheet() {
2308                 return true;
2309         }
2310
2311         /**
2312          * Gets new talk page messages for the current user.
2313          * @return MediaWiki message or if no new talk page messages, nothing
2314          */
2315         function getNewtalks() {
2316                 global $wgUser, $wgOut;
2317
2318                 $newtalks = $wgUser->getNewMessageLinks();
2319                 $ntl = '';
2320
2321                 if ( count( $newtalks ) == 1 && $newtalks[0]['wiki'] === wfWikiID() ) {
2322                         $userTitle = $this->mUser->getUserPage();
2323                         $userTalkTitle = $userTitle->getTalkPage();
2324
2325                         if ( !$userTalkTitle->equals( $this->mTitle ) ) {
2326                                 $newMessagesLink = $this->link(
2327                                         $userTalkTitle,
2328                                         wfMsgHtml( 'newmessageslink' ),
2329                                         array(),
2330                                         array( 'redirect' => 'no' ),
2331                                         array( 'known', 'noclasses' )
2332                                 );
2333
2334                                 $newMessagesDiffLink = $this->link(
2335                                         $userTalkTitle,
2336                                         wfMsgHtml( 'newmessagesdifflink' ),
2337                                         array(),
2338                                         array( 'diff' => 'cur' ),
2339                                         array( 'known', 'noclasses' )
2340                                 );
2341
2342                                 $ntl = wfMsg(
2343                                         'youhavenewmessages',
2344                                         $newMessagesLink,
2345                                         $newMessagesDiffLink
2346                                 );
2347                                 # Disable Squid cache
2348                                 $wgOut->setSquidMaxage( 0 );
2349                         }
2350                 } elseif ( count( $newtalks ) ) {
2351                         // _>" " for BC <= 1.16
2352                         $sep = str_replace( '_', ' ', wfMsgHtml( 'newtalkseparator' ) );
2353                         $msgs = array();
2354
2355                         foreach ( $newtalks as $newtalk ) {
2356                                 $msgs[] = Xml::element(
2357                                         'a',
2358                                         array( 'href' => $newtalk['link'] ), $newtalk['wiki']
2359                                 );
2360                         }
2361                         $parts = implode( $sep, $msgs );
2362                         $ntl = wfMsgHtml( 'youhavenewmessagesmulti', $parts );
2363                         $wgOut->setSquidMaxage( 0 );
2364                 }
2365
2366                 return $ntl;
2367         }
2368 }