includes/Skin.php

   1 <?php
   2 /**
   3  * @defgroup Skins Skins
   4  */
   5
   6 if ( ! defined( 'MEDIAWIKI' ) )
   7         die( 1 );
   8
   9 /**
  10  * The main skin class that provide methods and properties for all other skins.
  11  * This base class is also the "Standard" skin.
  12  *
  13  * See docs/skin.txt for more information.
  14  *
  15  * @ingroup Skins
  16  */
  17 class Skin extends Linker {
  18         /**#@+
  19          * @private
  20          */
  21         var $mWatchLinkNum = 0; // Appended to end of watch link id's
  22         // How many search boxes have we made?  Avoid duplicate id's.
  23         protected $searchboxes = '';
  24         /**#@-*/
  25         protected $mRevisionId; // The revision ID we're looking at, null if not applicable.
  26         protected $skinname = 'standard';
  27         // @fixme Should be protected :-\
  28         var $mTitle = null;
  29
  30         /** Constructor, call parent constructor */
  31         function Skin() { parent::__construct(); }
  32
  33         /**
  34          * Fetch the set of available skins.
  35          * @return array of strings
  36          * @static
  37          */
  38         static function getSkinNames() {
  39                 global $wgValidSkinNames;
  40                 static $skinsInitialised = false;
  41                 if ( !$skinsInitialised ) {
  42                         # Get a list of available skins
  43                         # Build using the regular expression '^(.*).php$'
  44                         # Array keys are all lower case, array value keep the case used by filename
  45                         #
  46                         wfProfileIn( __METHOD__ . '-init' );
  47                         global $wgStyleDirectory;
  48                         $skinDir = dir( $wgStyleDirectory );
  49
  50                         # while code from www.php.net
  51                         while( false !== ( $file = $skinDir->read() ) ) {
  52                                 // Skip non-PHP files, hidden files, and '.dep' includes
  53                                 $matches = array();
  54                                 if( preg_match( '/^([^.]*)\.php$/', $file, $matches ) ) {
  55                                         $aSkin = $matches[1];
  56                                         $wgValidSkinNames[strtolower($aSkin)] = $aSkin;
  57                                 }
  58                         }
  59                         $skinDir->close();
  60                         $skinsInitialised = true;
  61                         wfProfileOut( __METHOD__ . '-init' );
  62                 }
  63                 return $wgValidSkinNames;
  64         }
  65
  66         /**
  67          * Fetch the list of usable skins in regards to $wgSkipSkins.
  68          * Useful for Special:Preferences and other places where you
  69          * only want to show skins users _can_ use.
  70          * @return array of strings
  71          */
  72         public static function getUsableSkins() {
  73                 global $wgSkipSkins;
  74                 $usableSkins = self::getSkinNames();
  75                 foreach ( $wgSkipSkins as $skip ) {
  76                         unset( $usableSkins[$skip] );
  77                 }
  78                 return $usableSkins;
  79         }
  80
  81         /**
  82          * Normalize a skin preference value to a form that can be loaded.
  83          * If a skin can't be found, it will fall back to the configured
  84          * default (or the old 'Classic' skin if that's broken).
  85          * @param string $key
  86          * @return string
  87          * @static
  88          */
  89         static function normalizeKey( $key ) {
  90                 global $wgDefaultSkin;
  91                 $skinNames = Skin::getSkinNames();
  92
  93                 if( $key == '' ) {
  94                         // Don't return the default immediately;
  95                         // in a misconfiguration we need to fall back.
  96                         $key = $wgDefaultSkin;
  97                 }
  98
  99                 if( isset( $skinNames[$key] ) ) {
 100                         return $key;
 101                 }
 102
 103                 // Older versions of the software used a numeric setting
 104                 // in the user preferences.
 105                 $fallback = array(
 106                         0 => $wgDefaultSkin,
 107                         1 => 'nostalgia',
 108                         2 => 'cologneblue' );
 109
 110                 if( isset( $fallback[$key] ) ){
 111                         $key = $fallback[$key];
 112                 }
 113
 114                 if( isset( $skinNames[$key] ) ) {
 115                         return $key;
 116                 } else {
 117                         return 'monobook';
 118                 }
 119         }
 120
 121         /**
 122          * Factory method for loading a skin of a given type
 123          * @param string $key 'monobook', 'standard', etc
 124          * @return Skin
 125          * @static
 126          */
 127         static function &newFromKey( $key ) {
 128                 global $wgStyleDirectory;
 129
 130                 $key = Skin::normalizeKey( $key );
 131
 132                 $skinNames = Skin::getSkinNames();
 133                 $skinName = $skinNames[$key];
 134                 $className = 'Skin'.ucfirst($key);
 135
 136                 # Grab the skin class and initialise it.
 137                 if ( !class_exists( $className ) ) {
 138                         // Preload base classes to work around APC/PHP5 bug
 139                         $deps = "{$wgStyleDirectory}/{$skinName}.deps.php";
 140                         if( file_exists( $deps ) ) include_once( $deps );
 141                         require_once( "{$wgStyleDirectory}/{$skinName}.php" );
 142
 143                         # Check if we got if not failback to default skin
 144                         if( !class_exists( $className ) ) {
 145                                 # DO NOT die if the class isn't found. This breaks maintenance
 146                                 # scripts and can cause a user account to be unrecoverable
 147                                 # except by SQL manipulation if a previously valid skin name
 148                                 # is no longer valid.
 149                                 wfDebug( "Skin class does not exist: $className\n" );
 150                                 $className = 'SkinMonobook';
 151                                 require_once( "{$wgStyleDirectory}/MonoBook.php" );
 152                         }
 153                 }
 154                 $skin = new $className;
 155                 return $skin;
 156         }
 157
 158         /** @return string path to the skin stylesheet */
 159         function getStylesheet() {
 160                 return 'common/wikistandard.css';
 161         }
 162
 163         /** @return string skin name */
 164         public function getSkinName() {
 165                 return $this->skinname;
 166         }
 167
 168         function qbSetting() {
 169                 global $wgOut, $wgUser;
 170
 171                 if ( $wgOut->isQuickbarSuppressed() ) { return 0; }
 172                 $q = $wgUser->getOption( 'quickbar', 0 );
 173                 return $q;
 174         }
 175
 176         function initPage( OutputPage $out ) {
 177                 global $wgFavicon, $wgAppleTouchIcon;
 178
 179                 wfProfileIn( __METHOD__ );
 180
 181                 # Generally the order of the favicon and apple-touch-icon links
 182                 # should not matter, but Konqueror (3.5.9 at least) incorrectly
 183                 # uses whichever one appears later in the HTML source.  Make sure
 184                 # apple-touch-icon is specified first to avoid this.
 185                 if( false !== $wgAppleTouchIcon ) {
 186                         $out->addLink( array( 'rel' => 'apple-touch-icon', 'href' => $wgAppleTouchIcon ) );
 187                 }
 188
 189                 if( false !== $wgFavicon ) {
 190                         $out->addLink( array( 'rel' => 'shortcut icon', 'href' => $wgFavicon ) );
 191                 }
 192
 193                 # OpenSearch description link
 194                 $out->addLink( array(
 195                         'rel' => 'search',
 196                         'type' => 'application/opensearchdescription+xml',
 197                         'href' => wfScript( 'opensearch_desc' ),
 198                         'title' => wfMsgForContent( 'opensearch-desc' ),
 199                 ));
 200
 201                 $this->addMetadataLinks( $out );
 202
 203                 $this->mRevisionId = $out->mRevisionId;
 204
 205                 $this->preloadExistence();
 206
 207                 wfProfileOut( __METHOD__ );
 208         }
 209
 210         /**
 211          * Preload the existence of three commonly-requested pages in a single query
 212          */
 213         function preloadExistence() {
 214                 global $wgUser;
 215
 216                 // User/talk link
 217                 $titles = array( $wgUser->getUserPage(), $wgUser->getTalkPage() );
 218
 219                 // Other tab link
 220                 if ( $this->mTitle->getNamespace() == NS_SPECIAL ) {
 221                         // nothing
 222                 } elseif ( $this->mTitle->isTalkPage() ) {
 223                         $titles[] = $this->mTitle->getSubjectPage();
 224                 } else {
 225                         $titles[] = $this->mTitle->getTalkPage();
 226                 }
 227
 228                 $lb = new LinkBatch( $titles );
 229                 $lb->execute();
 230         }
 231
 232         function addMetadataLinks( OutputPage $out ) {
 233                 global $wgEnableDublinCoreRdf, $wgEnableCreativeCommonsRdf;
 234                 global $wgRightsPage, $wgRightsUrl;
 235
 236                 if( $out->isArticleRelated() ) {
 237                         # note: buggy CC software only reads first "meta" link
 238                         if( $wgEnableCreativeCommonsRdf ) {
 239                                 $out->addMetadataLink( array(
 240                                         'title' => 'Creative Commons',
 241                                         'type' => 'application/rdf+xml',
 242                                         'href' => $this->mTitle->getLocalURL( 'action=creativecommons' ) )
 243                                 );
 244                         }
 245                         if( $wgEnableDublinCoreRdf ) {
 246                                 $out->addMetadataLink( array(
 247                                         'title' => 'Dublin Core',
 248                                         'type' => 'application/rdf+xml',
 249                                         'href' => $this->mTitle->getLocalURL( 'action=dublincore' ) )
 250                                 );
 251                         }
 252                 }
 253                 $copyright = '';
 254                 if( $wgRightsPage ) {
 255                         $copy = Title::newFromText( $wgRightsPage );
 256                         if( $copy ) {
 257                                 $copyright = $copy->getLocalURL();
 258                         }
 259                 }
 260                 if( !$copyright && $wgRightsUrl ) {
 261                         $copyright = $wgRightsUrl;
 262                 }
 263                 if( $copyright ) {
 264                         $out->addLink( array(
 265                                 'rel' => 'copyright',
 266                                 'href' => $copyright )
 267                         );
 268                 }
 269         }
 270
 271         /**
 272          * Set some local variables
 273          */
 274         protected function setMembers(){
 275                 global $wgUser;
 276                 $this->mUser = $wgUser;
 277                 $this->userpage = $wgUser->getUserPage()->getPrefixedText();
 278                 $this->usercss = false;
 279         }
 280
 281         /**
 282          * Set the title
 283          * @param Title $t The title to use
 284          */
 285         public function setTitle( $t ) {
 286                 $this->mTitle = $t;
 287         }
 288
 289         /** Get the title */
 290         public function getTitle() {
 291                 return $this->mTitle;
 292         }
 293
 294         function outputPage( OutputPage $out ) {
 295                 global $wgDebugComments;
 296                 wfProfileIn( __METHOD__ );
 297
 298                 $this->setMembers();
 299                 $this->initPage( $out );
 300
 301                 // See self::afterContentHook() for documentation
 302                 $afterContent = $this->afterContentHook();
 303
 304                 $out->out( $out->headElement( $this ) );
 305
 306                 $out->out( "\n<body" );
 307                 $ops = $this->getBodyOptions();
 308                 foreach ( $ops as $name => $val ) {
 309                         $out->out( " $name='$val'" );
 310                 }
 311                 $out->out( ">\n" );
 312                 if ( $wgDebugComments ) {
 313                         $out->out( "<!-- Wiki debugging output:\n" .
 314                           $out->mDebugtext . "-->\n" );
 315                 }
 316
 317                 $out->out( $this->beforeContent() );
 318
 319                 $out->out( $out->mBodytext . "\n" );
 320
 321                 $out->out( $this->afterContent() );
 322
 323                 $out->out( $afterContent );
 324
 325                 $out->out( $this->bottomScripts() );
 326
 327                 $out->out( wfReportTime() );
 328
 329                 $out->out( "\n</body></html>" );
 330                 wfProfileOut( __METHOD__ );
 331         }
 332
 333         static function makeVariablesScript( $data ) {
 334                 if( $data ) {
 335                         $r = array();
 336                         foreach ( $data as $name => $value ) {
 337                                 $encValue = Xml::encodeJsVar( $value );
 338                                 $r[] = "$name=$encValue";
 339                         }
 340                         $js = 'var ' . implode( ",\n", $r ) . ';';
 341                         return Html::inlineScript( "\n$js\n" );
 342                 } else {
 343                         return '';
 344                 }
 345         }
 346
 347         /**
 348          * Make a <script> tag containing global variables
 349          * @param $skinName string Name of the skin
 350          * The odd calling convention is for backwards compatibility
 351          * @TODO @FIXME Make this not depend on $wgTitle!
 352          */
 353         static function makeGlobalVariablesScript( $skinName ) {
 354                 if ( is_array( $skinName ) ) {
 355                         # Weird back-compat stuff.
 356                         $skinName = $skinName['skinname'];
 357                 }
 358                 global $wgScript, $wgTitle, $wgStylePath, $wgUser, $wgScriptExtension;
 359                 global $wgArticlePath, $wgScriptPath, $wgServer, $wgContLang, $wgLang;
 360                 global $wgCanonicalNamespaceNames, $wgOut, $wgArticle;
 361                 global $wgBreakFrames, $wgRequest, $wgVariantArticlePath, $wgActionPaths;
 362                 global $wgUseAjax, $wgAjaxWatch;
 363                 global $wgVersion, $wgEnableAPI, $wgEnableWriteAPI;
 364                 global $wgRestrictionTypes, $wgLivePreview;
 365                 global $wgMWSuggestTemplate, $wgDBname, $wgEnableMWSuggest;
 366
 367                 $ns = $wgTitle->getNamespace();
 368                 $nsname = isset( $wgCanonicalNamespaceNames[ $ns ] ) ? $wgCanonicalNamespaceNames[ $ns ] : $wgTitle->getNsText();
 369                 $separatorTransTable = $wgContLang->separatorTransformTable();
 370                 $separatorTransTable = $separatorTransTable ? $separatorTransTable : array();
 371                 $compactSeparatorTransTable = array(
 372                         implode( "\t", array_keys( $separatorTransTable ) ),
 373                         implode( "\t", $separatorTransTable ),
 374                 );
 375                 $digitTransTable = $wgContLang->digitTransformTable();
 376                 $digitTransTable = $digitTransTable ? $digitTransTable : array();
 377                 $compactDigitTransTable = array(
 378                         implode( "\t", array_keys( $digitTransTable ) ),
 379                         implode( "\t", $digitTransTable ),
 380                 );
 381
 382                 $mainPage = Title::newFromText( wfMsgForContent( 'mainpage' ) );
 383                 $vars = array(
 384                         'skin' => $skinName,
 385                         'stylepath' => $wgStylePath,
 386                         'wgArticlePath' => $wgArticlePath,
 387                         'wgScriptPath' => $wgScriptPath,
 388                         'wgScriptExtension' => $wgScriptExtension,
 389                         'wgScript' => $wgScript,
 390                         'wgVariantArticlePath' => $wgVariantArticlePath,
 391                         'wgActionPaths' => (object)$wgActionPaths,
 392                         'wgServer' => $wgServer,
 393                         'wgCanonicalNamespace' => $nsname,
 394                         'wgCanonicalSpecialPageName' => SpecialPage::resolveAlias( $wgTitle->getDBkey() ),
 395                         'wgNamespaceNumber' => $wgTitle->getNamespace(),
 396                         'wgPageName' => $wgTitle->getPrefixedDBKey(),
 397                         'wgTitle' => $wgTitle->getText(),
 398                         'wgAction' => $wgRequest->getText( 'action', 'view' ),
 399                         'wgArticleId' => $wgTitle->getArticleId(),
 400                         'wgIsArticle' => $wgOut->isArticle(),
 401                         'wgUserName' => $wgUser->isAnon() ? NULL : $wgUser->getName(),
 402                         'wgUserGroups' => $wgUser->isAnon() ? NULL : $wgUser->getEffectiveGroups(),
 403                         'wgUserLanguage' => $wgLang->getCode(),
 404                         'wgContentLanguage' => $wgContLang->getCode(),
 405                         'wgBreakFrames' => $wgBreakFrames,
 406                         'wgCurRevisionId' => isset( $wgArticle ) ? $wgArticle->getLatest() : 0,
 407                         'wgVersion' => $wgVersion,
 408                         'wgEnableAPI' => $wgEnableAPI,
 409                         'wgEnableWriteAPI' => $wgEnableWriteAPI,
 410                         'wgSeparatorTransformTable' => $compactSeparatorTransTable,
 411                         'wgDigitTransformTable' => $compactDigitTransTable,
 412                         'wgMainPageTitle' => $mainPage ? $mainPage->getPrefixedText() : null,
 413                         'wgFormattedNamespaces' => $wgContLang->getFormattedNamespaces(),
 414                         'wgNamespaceIds' => $wgContLang->getNamespaceIds(),
 415                 );
 416                 if ( $wgContLang->hasVariants() ) {
 417                         $vars['wgUserVariant'] = $wgContLang->getPreferredVariant();
 418                 }
 419
 420                 //if on upload page output the extension list & js_upload
 421                 if( SpecialPage::resolveAlias( $wgTitle->getDBkey() ) ==  "Upload" ) {
 422                         global $wgFileExtensions, $wgAjaxUploadInterface;
 423                         $vars['wgFileExtensions'] = $wgFileExtensions;
 424                         $vars['wgAjaxUploadInterface'] = $wgAjaxUploadInterface;
 425                 }
 426
 427                 if( $wgUseAjax && $wgEnableMWSuggest && !$wgUser->getOption( 'disablesuggest', false ) ){
 428                         $vars['wgMWSuggestTemplate'] = SearchEngine::getMWSuggestTemplate();
 429                         $vars['wgDBname'] = $wgDBname;
 430                         $vars['wgSearchNamespaces'] = SearchEngine::userNamespaces( $wgUser );
 431                         $vars['wgMWSuggestMessages'] = array( wfMsg( 'search-mwsuggest-enabled' ), wfMsg( 'search-mwsuggest-disabled' ) );
 432                 }
 433
 434                 foreach( $wgRestrictionTypes as $type )
 435                         $vars['wgRestriction' . ucfirst( $type )] = $wgTitle->getRestrictions( $type );
 436
 437                 if ( $wgLivePreview && $wgUser->getOption( 'uselivepreview' ) ) {
 438                         $vars['wgLivepreviewMessageLoading'] = wfMsg( 'livepreview-loading' );
 439                         $vars['wgLivepreviewMessageReady']   = wfMsg( 'livepreview-ready' );
 440                         $vars['wgLivepreviewMessageFailed']  = wfMsg( 'livepreview-failed' );
 441                         $vars['wgLivepreviewMessageError']   = wfMsg( 'livepreview-error' );
 442                 }
 443
 444                 if ( $wgOut->isArticleRelated() && $wgUseAjax && $wgAjaxWatch && $wgUser->isLoggedIn() ) {
 445                         $msgs = (object)array();
 446                         foreach ( array( 'watch', 'unwatch', 'watching', 'unwatching' ) as $msgName ) {
 447                                 $msgs->{$msgName . 'Msg'} = wfMsg( $msgName );
 448                         }
 449                         $vars['wgAjaxWatch'] = $msgs;
 450                 }
 451
 452                 // Allow extensions to add their custom variables to the global JS variables
 453                 wfRunHooks( 'MakeGlobalVariablesScript', array( &$vars ) );
 454
 455                 return self::makeVariablesScript( $vars );
 456         }
 457
 458         /**
 459          * To make it harder for someone to slip a user a fake
 460          * user-JavaScript or user-CSS preview, a random token
 461          * is associated with the login session. If it's not
 462          * passed back with the preview request, we won't render
 463          * the code.
 464          *
 465          * @param string $action
 466          * @return bool
 467          */
 468         public function userCanPreview( $action ) {
 469                 global $wgRequest, $wgUser;
 470
 471                 if( $action != 'submit' )
 472                         return false;
 473                 if( !$wgRequest->wasPosted() )
 474                         return false;
 475                 if( !$this->mTitle->userCanEditCssSubpage() )
 476                         return false;
 477                 if( !$this->mTitle->userCanEditJsSubpage() )
 478                         return false;
 479                 return $wgUser->matchEditToken(
 480                         $wgRequest->getVal( 'wpEditToken' ) );
 481         }
 482
 483         /**
 484          * generated JavaScript action=raw&gen=js
 485          * This returns MediaWiki:Common.js and MediaWiki:[Skinname].js concate-
 486          * nated together.  For some bizarre reason, it does *not* return any
 487          * custom user JS from subpages.  Huh?
 488          *
 489          * There's absolutely no reason to have separate Monobook/Common JSes.
 490          * Any JS that cares can just check the skin variable generated at the
 491          * top.  For now Monobook.js will be maintained, but it should be consi-
 492          * dered deprecated.
 493          *
 494          * @param $force_skin string If set, overrides the skin name
 495          *
 496          * @return string
 497          */
 498         public function generateUserJs( $skinName = null ) {
 499                 global $wgStylePath;
 500
 501                 wfProfileIn( __METHOD__ );
 502                 if( !$skinName ) {
 503                         $skinName =     $this->getSkinName();
 504                 }
 505
 506                 $s = "/* generated javascript */\n";
 507                 $s .= "var skin = '" . Xml::escapeJsString($skinName ) . "';\n";
 508                 $s .= "var stylepath = '" . Xml::escapeJsString( $wgStylePath ) . "';";
 509                 $s .= "\n\n/* MediaWiki:Common.js */\n";
 510                 $commonJs = wfMsgForContent( 'common.js' );
 511                 if ( !wfEmptyMsg( 'common.js', $commonJs ) ) {
 512                         $s .= $commonJs;
 513                 }
 514
 515                 $s .= "\n\n/* MediaWiki:".ucfirst( $skinName ).".js */\n";
 516                 // avoid inclusion of non defined user JavaScript (with custom skins only)
 517                 // by checking for default message content
 518                 $msgKey = ucfirst( $skinName ) . '.js';
 519                 $userJS = wfMsgForContent( $msgKey );
 520                 if ( !wfEmptyMsg( $msgKey, $userJS ) ) {
 521                         $s .= $userJS;
 522                 }
 523
 524                 wfProfileOut( __METHOD__ );
 525                 return $s;
 526         }
 527
 528         /**
 529          * Generate user stylesheet for action=raw&gen=css
 530          */
 531         public function generateUserStylesheet() {
 532                 wfProfileIn( __METHOD__ );
 533                 $s = "/* generated user stylesheet */\n" .
 534                         $this->reallyGenerateUserStylesheet();
 535                 wfProfileOut( __METHOD__ );
 536                 return $s;
 537         }
 538
 539         /**
 540          * Split for easier subclassing in SkinSimple, SkinStandard and SkinCologneBlue
 541          */
 542         protected function reallyGenerateUserStylesheet(){
 543                 global $wgUser;
 544                 $s = '';
 545                 if( ( $undopt = $wgUser->getOption( 'underline' ) ) < 2 ) {
 546                         $underline = $undopt ? 'underline' : 'none';
 547                         $s .= "a { text-decoration: $underline; }\n";
 548                 }
 549                 if( $wgUser->getOption( 'highlightbroken' ) ) {
 550                         $s .= "a.new, #quickbar a.new { color: #CC2200; }\n";
 551                 } else {
 552                         $s .= <<<END
 553 a.new, #quickbar a.new,
 554 a.stub, #quickbar a.stub {
 555         color: inherit;
 556 }
 557 a.new:after, #quickbar a.new:after {
 558         content: "?";
 559         color: #CC2200;
 560 }
 561 a.stub:after, #quickbar a.stub:after {
 562         content: "!";
 563         color: #772233;
 564 }
 565 END;
 566                 }
 567                 if( $wgUser->getOption( 'justify' ) ) {
 568                         $s .= "#article, #bodyContent, #mw_content { text-align: justify; }\n";
 569                 }
 570                 if( !$wgUser->getOption( 'showtoc' ) ) {
 571                         $s .= "#toc { display: none; }\n";
 572                 }
 573                 if( !$wgUser->getOption( 'editsection' ) ) {
 574                         $s .= ".editsection { display: none; }\n";
 575                 }
 576                 $fontstyle = $wgUser->getOption( 'editfont' );
 577                 if ( $fontstyle !== 'default' ) {
 578                         $s .= "textarea { font-family: $fontstyle; }\n";
 579                 }
 580                 return $s;
 581         }
 582
 583         /**
 584          * @private
 585          */
 586         function setupUserCss( OutputPage $out ) {
 587                 global $wgRequest, $wgContLang, $wgUser;
 588                 global $wgAllowUserCss, $wgUseSiteCss, $wgSquidMaxage, $wgStylePath;
 589
 590                 wfProfileIn( __METHOD__ );
 591
 592                 $this->setupSkinUserCss( $out );
 593
 594                 $siteargs = array(
 595                         'action' => 'raw',
 596                         'maxage' => $wgSquidMaxage,
 597                 );
 598
 599                 // Add any extension CSS
 600                 foreach ( $out->getExtStyle() as $url ) {
 601                         $out->addStyle( $url );
 602                 }
 603
 604                 // If we use the site's dynamic CSS, throw that in, too
 605                 // Per-site custom styles
 606                 if( $wgUseSiteCss ) {
 607                         global $wgHandheldStyle;
 608                         $query = wfArrayToCGI( array(
 609                                 'usemsgcache' => 'yes',
 610                                 'ctype' => 'text/css',
 611                                 'smaxage' => $wgSquidMaxage
 612                         ) + $siteargs );
 613                         # Site settings must override extension css! (bug 15025)
 614                         $out->addStyle( self::makeNSUrl( 'Common.css', $query, NS_MEDIAWIKI ) );
 615                         $out->addStyle( self::makeNSUrl( 'Print.css', $query, NS_MEDIAWIKI ), 'print' );
 616                         if( $wgHandheldStyle ) {
 617                                 $out->addStyle( self::makeNSUrl( 'Handheld.css', $query, NS_MEDIAWIKI ), 'handheld' );
 618                         }
 619                         $out->addStyle( self::makeNSUrl( $this->getSkinName() . '.css', $query, NS_MEDIAWIKI ) );
 620                 }
 621
 622                 if( $wgUser->isLoggedIn() ) {
 623                         // Ensure that logged-in users' generated CSS isn't clobbered
 624                         // by anons' publicly cacheable generated CSS.
 625                         $siteargs['smaxage'] = '0';
 626                         $siteargs['ts'] = $wgUser->mTouched;
 627                 }
 628                 // Per-user styles based on preferences
 629                 $siteargs['gen'] = 'css';
 630                 if( ( $us = $wgRequest->getVal( 'useskin', '' ) ) !== '' ) {
 631                         $siteargs['useskin'] = $us;
 632                 }
 633                 $out->addStyle( self::makeUrl( '-', wfArrayToCGI( $siteargs ) ) );
 634
 635                 // Per-user custom style pages
 636                 if( $wgAllowUserCss && $wgUser->isLoggedIn() ) {
 637                         $action = $wgRequest->getVal( 'action' );
 638                         # If we're previewing the CSS page, use it
 639                         if( $this->mTitle->isCssSubpage() && $this->userCanPreview( $action ) ) {
 640                                 // @FIXME: properly escape the cdata!
 641                                 $out->addInlineStyle( $wgRequest->getText( 'wpTextbox1' ) );
 642                         } else {
 643                                 $out->addStyle( self::makeUrl( $this->userpage . '/' . $this->getSkinName() .'.css',
 644                                         'action=raw&ctype=text/css' ) );
 645                         }
 646                 }
 647
 648                 wfProfileOut( __METHOD__ );
 649         }
 650
 651         /**
 652          * Add skin specific stylesheets
 653          * @param $out OutputPage
 654          */
 655         function setupSkinUserCss( OutputPage $out ) {
 656                 $out->addStyle( 'common/shared.css' );
 657                 $out->addStyle( 'common/oldshared.css' );
 658                 $out->addStyle( $this->getStylesheet() );
 659                 $out->addStyle( 'common/common_rtl.css', '', '', 'rtl' );
 660         }
 661
 662         function getBodyOptions() {
 663                 global $wgUser, $wgOut, $wgRequest, $wgContLang;
 664
 665                 extract( $wgRequest->getValues( 'oldid', 'redirect', 'diff' ) );
 666
 667                 if ( 0 != $this->mTitle->getNamespace() ) {
 668                         $a = array( 'bgcolor' => '#ffffec' );
 669                 }
 670                 else $a = array( 'bgcolor' => '#FFFFFF' );
 671                 if( $wgOut->isArticle() && $wgUser->getOption( 'editondblclick' ) &&
 672                   $this->mTitle->quickUserCan( 'edit' ) ) {
 673                         $s = $this->mTitle->getFullURL( $this->editUrlOptions() );
 674                         $s = 'document.location = "' .Xml::escapeJsString( $s ) .'";';
 675                         $a += array( 'ondblclick' => $s );
 676                 }
 677                 $a['onload'] = $wgOut->getOnloadHandler();
 678                 $a['class'] =
 679                         'mediawiki' .
 680                         ' '.( $wgContLang->getDir() ).
 681                         ' '.$this->getPageClasses( $this->mTitle ) .
 682                         ' skin-'. Sanitizer::escapeClass( $this->getSkinName() );
 683                 return $a;
 684         }
 685
 686         function getPageClasses( $title ) {
 687                 $numeric = 'ns-'.$title->getNamespace();
 688                 if( $title->getNamespace() == NS_SPECIAL ) {
 689                         $type = 'ns-special';
 690                 } elseif( $title->isTalkPage() ) {
 691                         $type = 'ns-talk';
 692                 } else {
 693                         $type = 'ns-subject';
 694                 }
 695                 $name = Sanitizer::escapeClass( 'page-'.$title->getPrefixedText() );
 696                 return "$numeric $type $name";
 697         }
 698
 699         /**
 700          * URL to the logo
 701          */
 702         function getLogo() {
 703                 global $wgLogo;
 704                 return $wgLogo;
 705         }
 706
 707         /**
 708          * This will be called immediately after the <body> tag.  Split into
 709          * two functions to make it easier to subclass.
 710          */
 711         function beforeContent() {
 712                 return $this->doBeforeContent();
 713         }
 714
 715         function doBeforeContent() {
 716                 global $wgContLang;
 717                 wfProfileIn( __METHOD__ );
 718
 719                 $s = '';
 720                 $qb = $this->qbSetting();
 721
 722                 if( $langlinks = $this->otherLanguages() ) {
 723                         $rows = 2;
 724                         $borderhack = '';
 725                 } else {
 726                         $rows = 1;
 727                         $langlinks = false;
 728                         $borderhack = 'class="top"';
 729                 }
 730
 731                 $s .= "\n<div id='content'>\n<div id='topbar'>\n" .
 732                   "<table border='0' cellspacing='0' width='98%'>\n<tr>\n";
 733
 734                 $shove = ( $qb != 0 );
 735                 $left = ( $qb == 1 || $qb == 3 );
 736                 if( $wgContLang->isRTL() ) $left = !$left;
 737
 738                 if( !$shove ) {
 739                         $s .= "<td class='top' align='left' valign='top' rowspan='{$rows}'>\n" .
 740                           $this->logoText() . '</td>';
 741                 } elseif( $left ) {
 742                         $s .= $this->getQuickbarCompensator( $rows );
 743                 }
 744                 $l = $wgContLang->alignStart();
 745                 $s .= "<td {$borderhack} align='$l' valign='top'>\n";
 746
 747                 $s .= $this->topLinks();
 748                 $s .= "<p class='subtitle'>" . $this->pageTitleLinks() . "</p>\n";
 749
 750                 $r = $wgContLang->alignEnd();
 751                 $s .= "</td>\n<td {$borderhack} valign='top' align='$r' nowrap='nowrap'>";
 752                 $s .= $this->nameAndLogin();
 753                 $s .= "\n<br />" . $this->searchForm() . "</td>";
 754
 755                 if ( $langlinks ) {
 756                         $s .= "</tr>\n<tr>\n<td class='top' colspan=\"2\">$langlinks</td>\n";
 757                 }
 758
 759                 if ( $shove && !$left ) { # Right
 760                         $s .= $this->getQuickbarCompensator( $rows );
 761                 }
 762                 $s .= "</tr>\n</table>\n</div>\n";
 763                 $s .= "\n<div id='article'>\n";
 764
 765                 $notice = wfGetSiteNotice();
 766                 if( $notice ) {
 767                         $s .= "\n<div id='siteNotice'>$notice</div>\n";
 768                 }
 769                 $s .= $this->pageTitle();
 770                 $s .= $this->pageSubtitle();
 771                 $s .= $this->getCategories();
 772                 wfProfileOut( __METHOD__ );
 773                 return $s;
 774         }
 775
 776
 777         function getCategoryLinks() {
 778                 global $wgOut, $wgUseCategoryBrowser;
 779                 global $wgContLang, $wgUser;
 780
 781                 if( count( $wgOut->mCategoryLinks ) == 0 ) return '';
 782
 783                 # Separator
 784                 $sep = wfMsgExt( 'catseparator', array( 'parsemag', 'escapenoentities' ) );
 785
 786                 // Use Unicode bidi embedding override characters,
 787                 // to make sure links don't smash each other up in ugly ways.
 788                 $dir = $wgContLang->getDir();
 789                 $embed = "<span dir='$dir'>";
 790                 $pop = '</span>';
 791
 792                 $allCats = $wgOut->getCategoryLinks();
 793                 $s = '';
 794                 $colon = wfMsgExt( 'colon-separator', 'escapenoentities' );
 795                 if ( !empty( $allCats['normal'] ) ) {
 796                         $t = $embed . implode( "{$pop} {$sep} {$embed}" , $allCats['normal'] ) . $pop;
 797
 798                         $msg = wfMsgExt( 'pagecategories', array( 'parsemag', 'escapenoentities' ), count( $allCats['normal'] ) );
 799                         $s .= '<div id="mw-normal-catlinks">' .
 800                                 $this->link( Title::newFromText( wfMsgForContent( 'pagecategorieslink' ) ), $msg )
 801                                 . $colon . $t . '</div>';
 802                 }
 803
 804                 # Hidden categories
 805                 if ( isset( $allCats['hidden'] ) ) {
 806                         if ( $wgUser->getBoolOption( 'showhiddencats' ) ) {
 807                                 $class ='mw-hidden-cats-user-shown';
 808                         } elseif ( $this->mTitle->getNamespace() == NS_CATEGORY ) {
 809                                 $class = 'mw-hidden-cats-ns-shown';
 810                         } else {
 811                                 $class = 'mw-hidden-cats-hidden';
 812                         }
 813                         $s .= "<div id=\"mw-hidden-catlinks\" class=\"$class\">" .
 814                                 wfMsgExt( 'hidden-categories', array( 'parsemag', 'escapenoentities' ), count( $allCats['hidden'] ) ) .
 815                                 $colon . $embed . implode( "$pop $sep $embed", $allCats['hidden'] ) . $pop .
 816                                 "</div>";
 817                 }
 818
 819                 # optional 'dmoz-like' category browser. Will be shown under the list
 820                 # of categories an article belong to
 821                 if( $wgUseCategoryBrowser ){
 822                         $s .= '<br /><hr />';
 823
 824                         # get a big array of the parents tree
 825                         $parenttree = $this->mTitle->getParentCategoryTree();
 826                         # Skin object passed by reference cause it can not be
 827                         # accessed under the method subfunction drawCategoryBrowser
 828                         $tempout = explode( "\n", Skin::drawCategoryBrowser( $parenttree, $this ) );
 829                         # Clean out bogus first entry and sort them
 830                         unset( $tempout[0] );
 831                         asort( $tempout );
 832                         # Output one per line
 833                         $s .= implode( "<br />\n", $tempout );
 834                 }
 835
 836                 return $s;
 837         }
 838
 839         /**
 840          * Render the array as a serie of links.
 841          * @param $tree Array: categories tree returned by Title::getParentCategoryTree
 842          * @param &skin Object: skin passed by reference
 843          * @return String separated by &gt;, terminate with "\n"
 844          */
 845         function drawCategoryBrowser( $tree, &$skin ){
 846                 $return = '';
 847                 foreach( $tree as $element => $parent ) {
 848                         if( empty( $parent ) ) {
 849                                 # element start a new list
 850                                 $return .= "\n";
 851                         } else {
 852                                 # grab the others elements
 853                                 $return .= Skin::drawCategoryBrowser( $parent, $skin ) . ' &gt; ';
 854                         }
 855                         # add our current element to the list
 856                         $eltitle = Title::newFromText( $element );
 857                         $return .=  $skin->link( $eltitle, $eltitle->getText() );
 858                 }
 859                 return $return;
 860         }
 861
 862         function getCategories() {
 863                 $catlinks = $this->getCategoryLinks();
 864
 865                 $classes = 'catlinks';
 866
 867                 // Check what we're showing
 868                 global $wgOut, $wgUser;
 869                 $allCats = $wgOut->getCategoryLinks();
 870                 $showHidden = $wgUser->getBoolOption( 'showhiddencats' ) ||
 871                                                 $this->mTitle->getNamespace() == NS_CATEGORY;
 872
 873                 if( empty($allCats['normal']) && !( !empty($allCats['hidden']) && $showHidden ) ) {
 874                         $classes .= ' catlinks-allhidden';
 875                 }
 876
 877                 return "<div id='catlinks' class='$classes'>{$catlinks}</div>";
 878         }
 879
 880         function getQuickbarCompensator( $rows = 1 ) {
 881                 return "<td width='152' rowspan='{$rows}'>&nbsp;</td>";
 882         }
 883
 884         /**
 885          * This runs a hook to allow extensions placing their stuff after content
 886          * and article metadata (e.g. categories).
 887          * Note: This function has nothing to do with afterContent().
 888          *
 889          * This hook is placed here in order to allow using the same hook for all
 890          * skins, both the SkinTemplate based ones and the older ones, which directly
 891          * use this class to get their data.
 892          *
 893          * The output of this function gets processed in SkinTemplate::outputPage() for
 894          * the SkinTemplate based skins, all other skins should directly echo it.
 895          *
 896          * Returns an empty string by default, if not changed by any hook function.
 897          */
 898         protected function afterContentHook() {
 899                 $data = '';
 900
 901                 if( wfRunHooks( 'SkinAfterContent', array( &$data ) ) ){
 902                         // adding just some spaces shouldn't toggle the output
 903                         // of the whole <div/>, so we use trim() here
 904                         if( trim( $data ) != '' ){
 905                                 // Doing this here instead of in the skins to
 906                                 // ensure that the div has the same ID in all
 907                                 // skins
 908                                 $data = "<div id='mw-data-after-content'>\n" .
 909                                         "\t$data\n" .
 910                                         "</div>\n";
 911                         }
 912                 } else {
 913                         wfDebug( "Hook SkinAfterContent changed output processing.\n" );
 914                 }
 915
 916                 return $data;
 917         }
 918
 919         /**
 920          * Generate debug data HTML for displaying at the bottom of the main content
 921          * area.
 922          * @return String HTML containing debug data, if enabled (otherwise empty).
 923          */
 924         protected function generateDebugHTML() {
 925                 global $wgShowDebug, $wgOut;
 926                 if ( $wgShowDebug ) {
 927                         $listInternals = $this->formatDebugHTML( $wgOut->mDebugtext );
 928                         return "\n<hr />\n<strong>Debug data:</strong><ul style=\"font-family:monospace;\" id=\"mw-debug-html\">" .
 929                                 $listInternals . "</ul>\n";
 930                 }
 931                 return '';
 932         }
 933
 934         private function formatDebugHTML( $debugText ) {
 935                 $lines = explode( "\n", $debugText );
 936                 $curIdent = 0;
 937                 $ret = '<li>';
 938                 foreach( $lines as $line ) {
 939                         $m = array();
 940                         $display = ltrim( $line );
 941                         $ident = strlen( $line ) - strlen( $display );
 942                         $diff = $ident - $curIdent;
 943
 944                         if ( $display == '' )
 945                                 $display = "\xc2\xa0";
 946
 947                         if ( !$ident && $diff < 0 && substr( $display, 0, 9 ) != 'Entering ' && substr( $display, 0, 8 ) != 'Exiting ' ) {
 948                                 $ident = $curIdent;
 949                                 $diff = 0;
 950                                 $display = '<span style="background:yellow;">' . htmlspecialchars( $display ) . '</span>';
 951                         } else {
 952                                 $display = htmlspecialchars( $display );
 953                         }
 954
 955                         if ( $diff < 0 )
 956                                 $ret .= str_repeat( "</li></ul>\n", -$diff ) . "</li><li>\n";
 957                         elseif ( $diff == 0 )
 958                                 $ret .= "</li><li>\n";
 959                         else
 960                                 $ret .= str_repeat( "<ul><li>\n", $diff );
 961                         $ret .= $display . "\n";
 962
 963                         $curIdent = $ident;
 964                 }
 965                 $ret .= str_repeat( '</li></ul>', $curIdent ) . '</li>';
 966                 return $ret;
 967         }
 968
 969         /**
 970          * This gets called shortly before the </body> tag.
 971          * @return String HTML to be put before </body>
 972          */
 973         function afterContent() {
 974                 $printfooter = "<div class=\"printfooter\">\n" . $this->printFooter() . "</div>\n";
 975                 return $printfooter . $this->generateDebugHTML() . $this->doAfterContent();
 976         }
 977
 978         /**
 979          * This gets called shortly before the </body> tag.
 980          * @return String HTML-wrapped JS code to be put before </body>
 981          */
 982         function bottomScripts() {
 983                 $bottomScriptText = "\n" . Html::inlineScript( 'if (window.runOnloadHook) runOnloadHook();' ) . "\n";
 984                 wfRunHooks( 'SkinAfterBottomScripts', array( $this, &$bottomScriptText ) );
 985                 return $bottomScriptText;
 986         }
 987
 988         /** @return string Retrievied from HTML text */
 989         function printSource() {
 990                 $url = htmlspecialchars( $this->mTitle->getFullURL() );
 991                 return wfMsg( 'retrievedfrom', '<a href="'.$url.'">'.$url.'</a>' );
 992         }
 993
 994         function printFooter() {
 995                 return "<p>" .  $this->printSource() .
 996                         "</p>\n\n<p>" . $this->pageStats() . "</p>\n";
 997         }
 998
 999         /** overloaded by derived classes */
1000         function doAfterContent() { return '</div></div>'; }
1001
1002         function pageTitleLinks() {
1003                 global $wgOut, $wgUser, $wgRequest, $wgLang;
1004
1005                 $oldid = $wgRequest->getVal( 'oldid' );
1006                 $diff = $wgRequest->getVal( 'diff' );
1007                 $action = $wgRequest->getText( 'action' );
1008
1009                 $s[] = $this->printableLink();
1010                 $disclaimer = $this->disclaimerLink(); # may be empty
1011                 if( $disclaimer ) {
1012                         $s[] = $disclaimer;
1013                 }
1014                 $privacy = $this->privacyLink(); # may be empty too
1015                 if( $privacy ) {
1016                         $s[] = $privacy;
1017                 }
1018
1019                 if ( $wgOut->isArticleRelated() ) {
1020                         if ( $this->mTitle->getNamespace() == NS_FILE ) {
1021                                 $name = $this->mTitle->getDBkey();
1022                                 $image = wfFindFile( $this->mTitle );
1023                                 if( $image ) {
1024                                         $link = htmlspecialchars( $image->getURL() );
1025                                         $style = $this->getInternalLinkAttributes( $link, $name );
1026                                         $s[] = "<a href=\"{$link}\"{$style}>{$name}</a>";
1027                                 }
1028                         }
1029                 }
1030                 if ( 'history' == $action || isset( $diff ) || isset( $oldid ) ) {
1031                         $s[] .= $this->link(
1032                                         $this->mTitle,
1033                                         wfMsg( 'currentrev' ),
1034                                         array(),
1035                                         array(),
1036                                         array( 'known', 'noclasses' )
1037                         );
1038                 }
1039
1040                 if ( $wgUser->getNewtalk() ) {
1041                         # do not show "You have new messages" text when we are viewing our
1042                         # own talk page
1043                         if( !$this->mTitle->equals( $wgUser->getTalkPage() ) ) {
1044                                 $tl = $this->link(
1045                                         $wgUser->getTalkPage(),
1046                                         wfMsgHtml( 'newmessageslink' ),
1047                                         array(),
1048                                         array( 'redirect' => 'no' ),
1049                                         array( 'known', 'noclasses' )
1050                                 );
1051
1052                                 $dl = $this->link(
1053                                         $wgUser->getTalkPage(),
1054                                         wfMsgHtml( 'newmessagesdifflink' ),
1055                                         array(),
1056                                         array( 'diff' => 'cur' ),
1057                                         array( 'known', 'noclasses' )
1058                                 );
1059                                 $s[] = '<strong>'. wfMsg( 'youhavenewmessages', $tl, $dl ) . '</strong>';
1060                                 # disable caching
1061                                 $wgOut->setSquidMaxage( 0 );
1062                                 $wgOut->enableClientCache( false );
1063                         }
1064                 }
1065
1066                 $undelete = $this->getUndeleteLink();
1067                 if( !empty( $undelete ) ) {
1068                         $s[] = $undelete;
1069                 }
1070                 return $wgLang->pipeList( $s );
1071         }
1072
1073         function getUndeleteLink() {
1074                 global $wgUser, $wgContLang, $wgLang, $wgRequest;
1075
1076                 $action = $wgRequest->getVal( 'action', 'view' );
1077
1078                 if ( $wgUser->isAllowed( 'deletedhistory' ) &&
1079                         ( $this->mTitle->getArticleId() == 0 || $action == 'history' ) ) {
1080                         $n = $this->mTitle->isDeleted();
1081                         if ( $n ) {
1082                                 if ( $wgUser->isAllowed( 'undelete' ) ) {
1083                                         $msg = 'thisisdeleted';
1084                                 } else {
1085                                         $msg = 'viewdeleted';
1086                                 }
1087                                 return wfMsg(
1088                                         $msg,
1089                                         $this->link(
1090                                                 SpecialPage::getTitleFor( 'Undelete', $this->mTitle->getPrefixedDBkey() ),
1091                                                 wfMsgExt( 'restorelink', array( 'parsemag', 'escape' ), $wgLang->formatNum( $n ) ),
1092                                                 array(),
1093                                                 array(),
1094                                                 array( 'known', 'noclasses' )
1095                                         )
1096                                 );
1097                         }
1098                 }
1099                 return '';
1100         }
1101
1102         function printableLink() {
1103                 global $wgOut, $wgFeedClasses, $wgRequest, $wgLang;
1104
1105                 $s = array();
1106
1107                 if ( !$wgOut->isPrintable() ) {
1108                         $printurl = $wgRequest->escapeAppendQuery( 'printable=yes' );
1109                         $s[] = "<a href=\"$printurl\" rel=\"alternate\">" . wfMsg( 'printableversion' ) . '</a>';
1110                 }
1111
1112                 if( $wgOut->isSyndicated() ) {
1113                         foreach( $wgFeedClasses as $format => $class ) {
1114                                 $feedurl = $wgRequest->escapeAppendQuery( "feed=$format" );
1115                                 $s[] = "<a href=\"$feedurl\" rel=\"alternate\" type=\"application/{$format}+xml\""
1116                                                 . " class=\"feedlink\">" . wfMsgHtml( "feed-$format" ) . "</a>";
1117                         }
1118                 }
1119                 return $wgLang->pipeList( $s );
1120         }
1121
1122         function pageTitle() {
1123                 global $wgOut;
1124                 $s = '<h1 class="pagetitle">' . $wgOut->getPageTitle() . '</h1>';
1125                 return $s;
1126         }
1127
1128         function pageSubtitle() {
1129                 global $wgOut;
1130
1131                 $sub = $wgOut->getSubtitle();
1132                 if ( '' == $sub ) {
1133                         global $wgExtraSubtitle;
1134                         $sub = wfMsgExt( 'tagline', 'parsemag' ) . $wgExtraSubtitle;
1135                 }
1136                 $subpages = $this->subPageSubtitle();
1137                 $sub .= !empty( $subpages ) ? "</p><p class='subpages'>$subpages" : '';
1138                 $s = "<p class='subtitle'>{$sub}</p>\n";
1139                 return $s;
1140         }
1141
1142         function subPageSubtitle() {
1143                 $subpages = '';
1144                 if( !wfRunHooks( 'SkinSubPageSubtitle', array( &$subpages ) ) )
1145                         return $subpages;
1146
1147                 global $wgOut;
1148                 if( $wgOut->isArticle() && MWNamespace::hasSubpages( $this->mTitle->getNamespace() ) ) {
1149                         $ptext = $this->mTitle->getPrefixedText();
1150                         if( preg_match( '/\//', $ptext ) ) {
1151                                 $links = explode( '/', $ptext );
1152                                 array_pop( $links );
1153                                 $c = 0;
1154                                 $growinglink = '';
1155                                 $display = '';
1156                                 foreach( $links as $link ) {
1157                                         $growinglink .= $link;
1158                                         $display .= $link;
1159                                         $linkObj = Title::newFromText( $growinglink );
1160                                         if( is_object( $linkObj ) && $linkObj->exists() ){
1161                                                 $getlink = $this->link(
1162                                                         $linkObj,
1163                                                         htmlspecialchars( $display ),
1164                                                         array(),
1165                                                         array(),
1166                                                         array( 'known', 'noclasses' )
1167                                                 );
1168                                                 $c++;
1169                                                 if( $c > 1 ) {
1170                                                         $subpages .= wfMsgExt( 'pipe-separator', 'escapenoentities' );
1171                                                 } else  {
1172                                                         $subpages .= '&lt; ';
1173                                                 }
1174                                                 $subpages .= $getlink;
1175                                                 $display = '';
1176                                         } else {
1177                                                 $display .= '/';
1178                                         }
1179                                         $growinglink .= '/';
1180                                 }
1181                         }
1182                 }
1183                 return $subpages;
1184         }
1185
1186         /**
1187          * Returns true if the IP should be shown in the header
1188          */
1189         function showIPinHeader() {
1190                 global $wgShowIPinHeader;
1191                 return $wgShowIPinHeader && session_id() != '';
1192         }
1193
1194         function nameAndLogin() {
1195                 global $wgUser, $wgLang, $wgContLang;
1196
1197                 $logoutPage = $wgContLang->specialPage( 'Userlogout' );
1198
1199                 $ret = '';
1200                 if ( $wgUser->isAnon() ) {
1201                         if( $this->showIPinHeader() ) {
1202                                 $name = wfGetIP();
1203
1204                                 $talkLink = $this->link( $wgUser->getTalkPage(),
1205                                         $wgLang->getNsText( NS_TALK ) );
1206
1207                                 $ret .= "$name ($talkLink)";
1208                         } else {
1209                                 $ret .= wfMsg( 'notloggedin' );
1210                         }
1211
1212                         $returnTo = $this->mTitle->getPrefixedDBkey();
1213                         $query = array();
1214                         if ( $logoutPage != $returnTo ) {
1215                                 $query['returnto'] = $returnTo;
1216                         }
1217
1218                         $loginlink = $wgUser->isAllowed( 'createaccount' )
1219                                 ? 'nav-login-createaccount'
1220                                 : 'login';
1221                         $ret .= "\n<br />" . $this->link(
1222                                 SpecialPage::getTitleFor( 'Userlogin' ),
1223                                 wfMsg( $loginlink ), array(), $query
1224                         );
1225                 } else {
1226                         $returnTo = $this->mTitle->getPrefixedDBkey();
1227                         $talkLink = $this->link( $wgUser->getTalkPage(),
1228                                 $wgLang->getNsText( NS_TALK ) );
1229
1230                         $ret .= $this->link( $wgUser->getUserPage(),
1231                                 htmlspecialchars( $wgUser->getName() ) );
1232                         $ret .= " ($talkLink)<br />";
1233                         $ret .= $wgLang->pipeList( array(
1234                                 $this->link(
1235                                         SpecialPage::getTitleFor( 'Userlogout' ), wfMsg( 'logout' ),
1236                                         array(), array( 'returnto' => $returnTo )
1237                                 ),
1238                                 $this->specialLink( 'preferences' ),
1239                         ) );
1240                 }
1241                 $ret = $wgLang->pipeList( array(
1242                         $ret,
1243                         $this->link(
1244                                 Title::newFromText( wfMsgForContent( 'helppage' ) ),
1245                                 wfMsg( 'help' )
1246                         ),
1247                 ) );
1248
1249                 return $ret;
1250         }
1251
1252         function getSearchLink() {
1253                 $searchPage = SpecialPage::getTitleFor( 'Search' );
1254                 return $searchPage->getLocalURL();
1255         }
1256
1257         function escapeSearchLink() {
1258                 return htmlspecialchars( $this->getSearchLink() );
1259         }
1260
1261         function searchForm() {
1262                 global $wgRequest, $wgUseTwoButtonsSearchForm;
1263                 $search = $wgRequest->getText( 'search' );
1264
1265                 $s = '<form id="searchform'.$this->searchboxes.'" name="search" class="inline" method="post" action="'
1266                   . $this->escapeSearchLink() . "\">\n"
1267                   . '<input type="text" id="searchInput'.$this->searchboxes.'" name="search" size="19" value="'
1268                   . htmlspecialchars( substr( $search, 0, 256 ) ) . "\" />\n"
1269                   . '<input type="submit" name="go" value="' . wfMsg( 'searcharticle' ) . '" />';
1270
1271                 if( $wgUseTwoButtonsSearchForm )
1272                         $s .= '&nbsp;<input type="submit" name="fulltext" value="' . wfMsg( 'searchbutton' ) . "\" />\n";
1273                 else
1274                         $s .= ' <a href="' . $this->escapeSearchLink() . '" rel="search">' . wfMsg( 'powersearch-legend' ) . "</a>\n";
1275
1276                 $s .= '</form>';
1277
1278                 // Ensure unique id's for search boxes made after the first
1279                 $this->searchboxes = $this->searchboxes == '' ? 2 : $this->searchboxes + 1;
1280
1281                 return $s;
1282         }
1283
1284         function topLinks() {
1285                 global $wgOut;
1286
1287                 $s = array(
1288                         $this->mainPageLink(),
1289                         $this->specialLink( 'recentchanges' )
1290                 );
1291
1292                 if ( $wgOut->isArticleRelated() ) {
1293                         $s[] = $this->editThisPage();
1294                         $s[] = $this->historyLink();
1295                 }
1296                 # Many people don't like this dropdown box
1297                 #$s[] = $this->specialPagesList();
1298
1299                 if( $this->variantLinks() ) {
1300                         $s[] = $this->variantLinks();
1301                 }
1302
1303                 if( $this->extensionTabLinks() ) {
1304                         $s[] = $this->extensionTabLinks();
1305                 }
1306
1307                 // FIXME: Is using Language::pipeList impossible here? Do not quite understand the use of the newline
1308                 return implode( $s, wfMsgExt( 'pipe-separator', 'escapenoentities' ) . "\n" );
1309         }
1310
1311         /**
1312          * Compatibility for extensions adding functionality through tabs.
1313          * Eventually these old skins should be replaced with SkinTemplate-based
1314          * versions, sigh...
1315          * @return string
1316          */
1317         function extensionTabLinks() {
1318                 $tabs = array();
1319                 $out = '';
1320                 $s = array();
1321                 wfRunHooks( 'SkinTemplateTabs', array( $this, &$tabs ) );
1322                 foreach( $tabs as $tab ) {
1323                         $s[] = Xml::element( 'a',
1324                                 array( 'href' => $tab['href'] ),
1325                                 $tab['text'] );
1326                 }
1327
1328                 if( count( $s ) ) {
1329                         global $wgLang;
1330
1331                         $out = wfMsgExt( 'pipe-separator' , 'escapenoentities' );
1332                         $out .= $wgLang->pipeList( $s );
1333                 }
1334
1335                 return $out;
1336         }
1337
1338         /**
1339          * Language/charset variant links for classic-style skins
1340          * @return string
1341          */
1342         function variantLinks() {
1343                 $s = '';
1344                 /* show links to different language variants */
1345                 global $wgDisableLangConversion, $wgLang, $wgContLang;
1346                 $variants = $wgContLang->getVariants();
1347                 if( !$wgDisableLangConversion && sizeof( $variants ) > 1 ) {
1348                         foreach( $variants as $code ) {
1349                                 $varname = $wgContLang->getVariantname( $code );
1350                                 if( $varname == 'disable' )
1351                                         continue;
1352                                 $s = $wgLang->pipeList( array(
1353                                         $s,
1354                                         '<a href="' . $this->mTitle->escapeLocalUrl( 'variant=' . $code ) . '">' . htmlspecialchars( $varname ) . '</a>'
1355                                 ) );
1356                         }
1357                 }
1358                 return $s;
1359         }
1360
1361         function bottomLinks() {
1362                 global $wgOut, $wgUser, $wgUseTrackbacks;
1363                 $sep = wfMsgExt( 'pipe-separator', 'escapenoentities' ) . "\n";
1364
1365                 $s = '';
1366                 if ( $wgOut->isArticleRelated() ) {
1367                         $element[] = '<strong>' . $this->editThisPage() . '</strong>';
1368                         if ( $wgUser->isLoggedIn() ) {
1369                                 $element[] = $this->watchThisPage();
1370                         }
1371                         $element[] = $this->talkLink();
1372                         $element[] = $this->historyLink();
1373                         $element[] = $this->whatLinksHere();
1374                         $element[] = $this->watchPageLinksLink();
1375
1376                         if( $wgUseTrackbacks )
1377                                 $element[] = $this->trackbackLink();
1378
1379                         if ( $this->mTitle->getNamespace() == NS_USER
1380                             || $this->mTitle->getNamespace() == NS_USER_TALK ){
1381                                 $id = User::idFromName( $this->mTitle->getText() );
1382                                 $ip = User::isIP( $this->mTitle->getText() );
1383
1384                                 if( $id || $ip ) { # both anons and non-anons have contri list
1385                                         $element[] = $this->userContribsLink();
1386                                 }
1387                                 if( $this->showEmailUser( $id ) ) {
1388                                         $element[] = $this->emailUserLink();
1389                                 }
1390                         }
1391
1392                         $s = implode( $element, $sep );
1393
1394                         if ( $this->mTitle->getArticleId() ) {
1395                                 $s .= "\n<br />";
1396                                 if( $wgUser->isAllowed( 'delete' ) ) { $s .= $this->deleteThisPage(); }
1397                                 if( $wgUser->isAllowed( 'protect' ) ) { $s .= $sep . $this->protectThisPage(); }
1398                                 if( $wgUser->isAllowed( 'move' ) ) { $s .= $sep . $this->moveThisPage(); }
1399                         }
1400                         $s .= "<br />\n" . $this->otherLanguages();
1401                 }
1402
1403                 return $s;
1404         }
1405
1406         function pageStats() {
1407                 global $wgOut, $wgLang, $wgArticle, $wgRequest, $wgUser;
1408                 global $wgDisableCounters, $wgMaxCredits, $wgShowCreditsIfMax, $wgPageShowWatchingUsers;
1409
1410                 $oldid = $wgRequest->getVal( 'oldid' );
1411                 $diff = $wgRequest->getVal( 'diff' );
1412                 if ( ! $wgOut->isArticle() ) { return ''; }
1413                 if( !$wgArticle instanceOf Article ) { return ''; }
1414                 if ( isset( $oldid ) || isset( $diff ) ) { return ''; }
1415                 if ( 0 == $wgArticle->getID() ) { return ''; }
1416
1417                 $s = '';
1418                 if ( !$wgDisableCounters ) {
1419                         $count = $wgLang->formatNum( $wgArticle->getCount() );
1420                         if ( $count ) {
1421                                 $s = wfMsgExt( 'viewcount', array( 'parseinline' ), $count );
1422                         }
1423                 }
1424
1425                 if( $wgMaxCredits != 0 ){
1426                         $s .= ' ' . Credits::getCredits( $wgArticle, $wgMaxCredits, $wgShowCreditsIfMax );
1427                 } else {
1428                         $s .= $this->lastModified();
1429                 }
1430
1431                 if( $wgPageShowWatchingUsers && $wgUser->getOption( 'shownumberswatching' ) ) {
1432                         $dbr = wfGetDB( DB_SLAVE );
1433                         $res = $dbr->select( 'watchlist',
1434                                 array( 'COUNT(*) AS n' ),
1435                                 array( 'wl_title' => $dbr->strencode( $this->mTitle->getDBkey() ), 'wl_namespace' => $this->mTitle->getNamespace() ),
1436                                 __METHOD__
1437                         );
1438                         $x = $dbr->fetchObject( $res );
1439
1440                         $s .= ' ' . wfMsgExt( 'number_of_watching_users_pageview',
1441                                 array( 'parseinline' ), $wgLang->formatNum( $x->n )
1442                         );
1443                 }
1444
1445                 return $s . ' ' .  $this->getCopyright();
1446         }
1447
1448         function getCopyright( $type = 'detect' ) {
1449                 global $wgRightsPage, $wgRightsUrl, $wgRightsText, $wgRequest, $wgArticle;
1450
1451                 if ( $type == 'detect' ) {
1452                         $diff = $wgRequest->getVal( 'diff' );
1453                         $isCur = $wgArticle && $wgArticle->isCurrent();
1454                         if ( is_null( $diff ) && !$isCur && wfMsgForContent( 'history_copyright' ) !== '-' ) {
1455                                 $type = 'history';
1456                         } else {
1457                                 $type = 'normal';
1458                         }
1459                 }
1460
1461                 if ( $type == 'history' ) {
1462                         $msg = 'history_copyright';
1463                 } else {
1464                         $msg = 'copyright';
1465                 }
1466
1467                 $out = '';
1468                 if( $wgRightsPage ) {
1469                         $title = Title::newFromText( $wgRightsPage );
1470                         $link = $this->linkKnown( $title, $wgRightsText );
1471                 } elseif( $wgRightsUrl ) {
1472                         $link = $this->makeExternalLink( $wgRightsUrl, $wgRightsText );
1473                 } elseif( $wgRightsText ) {
1474                         $link = $wgRightsText;
1475                 } else {
1476                         # Give up now
1477                         return $out;
1478                 }
1479                 // Allow for site and per-namespace customization of copyright notice.
1480                 if( isset($wgArticle) )
1481                         wfRunHooks( 'SkinCopyrightFooter', array( $wgArticle->getTitle(), $type, &$msg, &$link ) );
1482
1483                 $out .= wfMsgForContent( $msg, $link );
1484                 return $out;
1485         }
1486
1487         function getCopyrightIcon() {
1488                 global $wgRightsUrl, $wgRightsText, $wgRightsIcon, $wgCopyrightIcon;
1489                 $out = '';
1490                 if ( isset( $wgCopyrightIcon ) && $wgCopyrightIcon ) {
1491                         $out = $wgCopyrightIcon;
1492                 } else if ( $wgRightsIcon ) {
1493                         $icon = htmlspecialchars( $wgRightsIcon );
1494                         if ( $wgRightsUrl ) {
1495                                 $url = htmlspecialchars( $wgRightsUrl );
1496                                 $out .= '<a href="'.$url.'">';
1497                         }
1498                         $text = htmlspecialchars( $wgRightsText );
1499                         $out .= "<img src=\"$icon\" alt=\"$text\" width=\"88\" height=\"31\" />";
1500                         if ( $wgRightsUrl ) {
1501                                 $out .= '</a>';
1502                         }
1503                 }
1504                 return $out;
1505         }
1506
1507         function getPoweredBy() {
1508                 global $wgStylePath;
1509                 $url = htmlspecialchars( "$wgStylePath/common/images/poweredby_mediawiki_88x31.png" );
1510                 $img = '<a href="http://www.mediawiki.org/"><img src="'.$url.'" height="31" width="88" alt="Powered by MediaWiki" /></a>';
1511                 return $img;
1512         }
1513
1514         function lastModified() {
1515                 global $wgLang, $wgArticle;
1516                 if( $this->mRevisionId && $this->mRevisionId != $wgArticle->getLatest()) {
1517                         $timestamp = Revision::getTimestampFromId( $wgArticle->getTitle(), $this->mRevisionId );
1518                 } else {
1519                         $timestamp = $wgArticle->getTimestamp();
1520                 }
1521                 if ( $timestamp ) {
1522                         $d = $wgLang->date( $timestamp, true );
1523                         $t = $wgLang->time( $timestamp, true );
1524                         $s = ' ' . wfMsg( 'lastmodifiedat', $d, $t );
1525                 } else {
1526                         $s = '';
1527                 }
1528                 if ( wfGetLB()->getLaggedSlaveMode() ) {
1529                         $s .= ' <strong>' . wfMsg( 'laggedslavemode' ) . '</strong>';
1530                 }
1531                 return $s;
1532         }
1533
1534         function logoText( $align = '' ) {
1535                 if ( '' != $align ) {
1536                         $a = " align='{$align}'";
1537                 } else {
1538                         $a = '';
1539                 }
1540
1541                 $mp = wfMsg( 'mainpage' );
1542                 $mptitle = Title::newMainPage();
1543                 $url = ( is_object( $mptitle ) ? $mptitle->escapeLocalURL() : '' );
1544
1545                 $logourl = $this->getLogo();
1546                 $s = "<a href='{$url}'><img{$a} src='{$logourl}' alt='[{$mp}]' /></a>";
1547                 return $s;
1548         }
1549
1550         /**
1551          * show a drop-down box of special pages
1552          */
1553         function specialPagesList() {
1554                 global $wgUser, $wgContLang, $wgServer, $wgRedirectScript;
1555                 $pages = array_merge( SpecialPage::getRegularPages(), SpecialPage::getRestrictedPages() );
1556                 foreach ( $pages as $name => $page ) {
1557                         $pages[$name] = $page->getDescription();
1558                 }
1559
1560                 $go = wfMsg( 'go' );
1561                 $sp = wfMsg( 'specialpages' );
1562                 $spp = $wgContLang->specialPage( 'Specialpages' );
1563
1564                 $s = '<form id="specialpages" method="get" ' .
1565                   'action="' . htmlspecialchars( "{$wgServer}{$wgRedirectScript}" ) . "\">\n";
1566                 $s .= "<select name=\"wpDropdown\">\n";
1567                 $s .= "<option value=\"{$spp}\">{$sp}</option>\n";
1568
1569
1570                 foreach ( $pages as $name => $desc ) {
1571                         $p = $wgContLang->specialPage( $name );
1572                         $s .= "<option value=\"{$p}\">{$desc}</option>\n";
1573                 }
1574                 $s .= "</select>\n";
1575                 $s .= "<input type='submit' value=\"{$go}\" name='redirect' />\n";
1576                 $s .= "</form>\n";
1577                 return $s;
1578         }
1579
1580         function mainPageLink() {
1581                 $s = $this->link(
1582                         Title::newMainPage(),
1583                         wfMsg( 'mainpage' ),
1584                         array(),
1585                         array(),
1586                         array( 'known', 'noclasses' )
1587                 );
1588                 return $s;
1589         }
1590
1591         private function footerLink ( $desc, $page ) {
1592                 // if the link description has been set to "-" in the default language,
1593                 if ( wfMsgForContent( $desc )  == '-') {
1594                         // then it is disabled, for all languages.
1595                         return '';
1596                 } else {
1597                         // Otherwise, we display the link for the user, described in their
1598                         // language (which may or may not be the same as the default language),
1599                         // but we make the link target be the one site-wide page.
1600                         $title = Title::newFromText( wfMsgForContent( $page ) );
1601                         return $this->linkKnown(
1602                                 $title,
1603                                 wfMsgExt( $desc, array( 'parsemag', 'escapenoentities' ) )
1604                         );
1605                 }
1606         }
1607
1608         function privacyLink() {
1609                 return $this->footerLink( 'privacy', 'privacypage' );
1610         }
1611
1612         function aboutLink() {
1613                 return $this->footerLink( 'aboutsite', 'aboutpage' );
1614         }
1615
1616         function disclaimerLink() {
1617                 return $this->footerLink( 'disclaimers', 'disclaimerpage' );
1618         }
1619
1620         function editThisPage() {
1621                 global $wgOut;
1622
1623                 if ( !$wgOut->isArticleRelated() ) {
1624                         $s = wfMsg( 'protectedpage' );
1625                 } else {
1626                         if( $this->mTitle->quickUserCan( 'edit' ) && $this->mTitle->exists() ) {
1627                                 $t = wfMsg( 'editthispage' );
1628                         } elseif( $this->mTitle->quickUserCan( 'create' ) && !$this->mTitle->exists() ) {
1629                                 $t = wfMsg( 'create-this-page' );
1630                         } else {
1631                                 $t = wfMsg( 'viewsource' );
1632                         }
1633
1634                         $s = $this->link(
1635                                 $this->mTitle,
1636                                 $t,
1637                                 array(),
1638                                 $this->editUrlOptions(),
1639                                 array( 'known', 'noclasses' )
1640                         );
1641                 }
1642                 return $s;
1643         }
1644
1645         /**
1646          * Return URL options for the 'edit page' link.
1647          * This may include an 'oldid' specifier, if the current page view is such.
1648          *
1649          * @return array
1650          * @private
1651          */
1652         function editUrlOptions() {
1653                 global $wgArticle;
1654
1655                 $options = array( 'action' => 'edit' );
1656
1657                 if( $this->mRevisionId && ! $wgArticle->isCurrent() ) {
1658                         $options['oldid'] = intval( $this->mRevisionId );
1659                 }
1660
1661                 return $options;
1662         }
1663
1664         function deleteThisPage() {
1665                 global $wgUser, $wgRequest;
1666
1667                 $diff = $wgRequest->getVal( 'diff' );
1668                 if ( $this->mTitle->getArticleId() && ( !$diff ) && $wgUser->isAllowed( 'delete' ) ) {
1669                         $t = wfMsg( 'deletethispage' );
1670
1671                         $s = $this->link(
1672                                 $this->mTitle,
1673                                 $t,
1674                                 array(),
1675                                 array( 'action' => 'delete' ),
1676                                 array( 'known', 'noclasses' )
1677                         );
1678                 } else {
1679                         $s = '';
1680                 }
1681                 return $s;
1682         }
1683
1684         function protectThisPage() {
1685                 global $wgUser, $wgRequest;
1686
1687                 $diff = $wgRequest->getVal( 'diff' );
1688                 if ( $this->mTitle->getArticleId() && ( ! $diff ) && $wgUser->isAllowed('protect') ) {
1689                         if ( $this->mTitle->isProtected() ) {
1690                                 $text = wfMsg( 'unprotectthispage' );
1691                                 $query = array( 'action' => 'unprotect' );
1692                         } else {
1693                                 $text = wfMsg( 'protectthispage' );
1694                                 $query = array( 'action' => 'protect' );
1695                         }
1696
1697                         $s = $this->link(
1698                                 $this->mTitle,
1699                                 $text,
1700                                 array(),
1701                                 $query,
1702                                 array( 'known', 'noclasses' )
1703                         );
1704                 } else {
1705                         $s = '';
1706                 }
1707                 return $s;
1708         }
1709
1710         function watchThisPage() {
1711                 global $wgOut;
1712                 ++$this->mWatchLinkNum;
1713
1714                 if ( $wgOut->isArticleRelated() ) {
1715                         if ( $this->mTitle->userIsWatching() ) {
1716                                 $text = wfMsg( 'unwatchthispage' );
1717                                 $query = array( 'action' => 'unwatch' );
1718                                 $id = 'mw-unwatch-link' . $this->mWatchLinkNum;
1719                         } else {
1720                                 $text = wfMsg( 'watchthispage' );
1721                                 $query = array( 'action' => 'watch' );
1722                                 $id = 'mw-watch-link' . $this->mWatchLinkNum;
1723                         }
1724
1725                         $s = $this->link(
1726                                 $this->mTitle,
1727                                 $text,
1728                                 array( 'id' => $id ),
1729                                 $query,
1730                                 array( 'known', 'noclasses' )
1731                         );
1732                 } else {
1733                         $s = wfMsg( 'notanarticle' );
1734                 }
1735                 return $s;
1736         }
1737
1738         function moveThisPage() {
1739                 if ( $this->mTitle->quickUserCan( 'move' ) ) {
1740                         return $this->link(
1741                                 SpecialPage::getTitleFor( 'Movepage' ),
1742                                 wfMsg( 'movethispage' ),
1743                                 array(),
1744                                 array( 'target' => $this->mTitle->getPrefixedDBkey() ),
1745                                 array( 'known', 'noclasses' )
1746                         );
1747                 } else {
1748                         // no message if page is protected - would be redundant
1749                         return '';
1750                 }
1751         }
1752
1753         function historyLink() {
1754                 return $this->link(
1755                         $this->mTitle,
1756                         wfMsgHtml( 'history' ),
1757                         array( 'rel' => 'archives' ),
1758                         array( 'action' => 'history' )
1759                 );
1760         }
1761
1762         function whatLinksHere() {
1763                 return $this->link(
1764                         SpecialPage::getTitleFor( 'Whatlinkshere', $this->mTitle->getPrefixedDBkey() ),
1765                         wfMsgHtml( 'whatlinkshere' ),
1766                         array(),
1767                         array(),
1768                         array( 'known', 'noclasses' )
1769                 );
1770         }
1771
1772         function userContribsLink() {
1773                 return $this->link(
1774                         SpecialPage::getTitleFor( 'Contributions', $this->mTitle->getDBkey() ),
1775                         wfMsgHtml( 'contributions' ),
1776                         array(),
1777                         array(),
1778                         array( 'known', 'noclasses' )
1779                 );
1780         }
1781
1782         function showEmailUser( $id ) {
1783                 global $wgUser;
1784                 $targetUser = User::newFromId( $id );
1785                 return  $wgUser->canSendEmail() && # the sending user must have a confirmed email address
1786                         $targetUser->canReceiveEmail(); # the target user must have a confirmed email address and allow emails from users
1787         }
1788
1789         function emailUserLink() {
1790                 return $this->link(
1791                         SpecialPage::getTitleFor( 'Emailuser', $this->mTitle->getDBkey() ),
1792                         wfMsg( 'emailuser' ),
1793                         array(),
1794                         array(),
1795                         array( 'known', 'noclasses' )
1796                 );
1797         }
1798
1799         function watchPageLinksLink() {
1800                 global $wgOut;
1801                 if ( ! $wgOut->isArticleRelated() ) {
1802                         return '(' . wfMsg( 'notanarticle' ) . ')';
1803                 } else {
1804                         return $this->link(
1805                                 SpecialPage::getTitleFor( 'Recentchangeslinked', $this->mTitle->getPrefixedDBkey() ),
1806                                 wfMsg( 'recentchangeslinked-toolbox' ),
1807                                 array(),
1808                                 array(),
1809                                 array( 'known', 'noclasses' )
1810                         );
1811                 }
1812         }
1813
1814         function trackbackLink() {
1815                 return '<a href="' . $this->mTitle->trackbackURL() . '">'
1816                         . wfMsg( 'trackbacklink' ) . '</a>';
1817         }
1818
1819         function otherLanguages() {
1820                 global $wgOut, $wgContLang, $wgHideInterlanguageLinks;
1821
1822                 if ( $wgHideInterlanguageLinks ) {
1823                         return '';
1824                 }
1825
1826                 $a = $wgOut->getLanguageLinks();
1827                 if ( 0 == count( $a ) ) {
1828                         return '';
1829                 }
1830
1831                 $s = wfMsg( 'otherlanguages' ) . wfMsg( 'colon-separator' );
1832                 $first = true;
1833                 if( $wgContLang->isRTL() ) $s .= '<span dir="LTR">';
1834                 foreach( $a as $l ) {
1835                         if ( !$first ) {
1836                                 $s .= wfMsgExt( 'pipe-separator', 'escapenoentities' );
1837                         }
1838                         $first = false;
1839
1840                         $nt = Title::newFromText( $l );
1841                         $url = $nt->escapeFullURL();
1842                         $text = $wgContLang->getLanguageName( $nt->getInterwiki() );
1843
1844                         if ( '' == $text ) { $text = $l; }
1845                         $style = $this->getExternalLinkAttributes();
1846                         $s .= "<a href=\"{$url}\"{$style}>{$text}</a>";
1847                 }
1848                 if( $wgContLang->isRTL() ) $s .= '</span>';
1849                 return $s;
1850         }
1851
1852         function talkLink() {
1853                 if ( NS_SPECIAL == $this->mTitle->getNamespace() ) {
1854                         # No discussion links for special pages
1855                         return '';
1856                 }
1857
1858                 $linkOptions = array();
1859
1860                 if( $this->mTitle->isTalkPage() ) {
1861                         $link = $this->mTitle->getSubjectPage();
1862                         switch( $link->getNamespace() ) {
1863                                 case NS_MAIN:
1864                                         $text = wfMsg( 'articlepage' );
1865                                         break;
1866                                 case NS_USER:
1867                                         $text = wfMsg( 'userpage' );
1868                                         break;
1869                                 case NS_PROJECT:
1870                                         $text = wfMsg( 'projectpage' );
1871                                         break;
1872                                 case NS_FILE:
1873                                         $text = wfMsg( 'imagepage' );
1874                                         # Make link known if image exists, even if the desc. page doesn't.
1875                                         if( wfFindFile( $link ) )
1876                                                 $linkOptions[] = 'known';
1877                                         break;
1878                                 case NS_MEDIAWIKI:
1879                                         $text = wfMsg( 'mediawikipage' );
1880                                         break;
1881                                 case NS_TEMPLATE:
1882                                         $text = wfMsg( 'templatepage' );
1883                                         break;
1884                                 case NS_HELP:
1885                                         $text = wfMsg( 'viewhelppage' );
1886                                         break;
1887                                 case NS_CATEGORY:
1888                                         $text = wfMsg( 'categorypage' );
1889                                         break;
1890                                 default:
1891                                         $text = wfMsg( 'articlepage' );
1892                         }
1893                 } else {
1894                         $link = $this->mTitle->getTalkPage();
1895                         $text = wfMsg( 'talkpage' );
1896                 }
1897
1898                 $s = $this->link( $link, $text, array(), array(), $linkOptions );
1899
1900                 return $s;
1901         }
1902
1903         function commentLink() {
1904                 global $wgOut;
1905
1906                 if ( $this->mTitle->getNamespace() == NS_SPECIAL ) {
1907                         return '';
1908                 }
1909
1910                 # __NEWSECTIONLINK___ changes behaviour here
1911                 # If it is present, the link points to this page, otherwise
1912                 # it points to the talk page
1913                 if( $this->mTitle->isTalkPage() ) {
1914                         $title = $this->mTitle;
1915                 } elseif( $wgOut->showNewSectionLink() ) {
1916                         $title = $this->mTitle;
1917                 } else {
1918                         $title = $this->mTitle->getTalkPage();
1919                 }
1920
1921                 return $this->link(
1922                         $title,
1923                         wfMsg( 'postcomment' ),
1924                         array(),
1925                         array(
1926                                 'action' => 'edit',
1927                                 'section' => 'new'
1928                         ),
1929                         array( 'known', 'noclasses' )
1930                 );
1931         }
1932
1933         /* these are used extensively in SkinTemplate, but also some other places */
1934         static function makeMainPageUrl( $urlaction = '' ) {
1935                 $title = Title::newMainPage();
1936                 self::checkTitle( $title, '' );
1937                 return $title->getLocalURL( $urlaction );
1938         }
1939
1940         static function makeSpecialUrl( $name, $urlaction = '' ) {
1941                 $title = SpecialPage::getTitleFor( $name );
1942                 return $title->getLocalURL( $urlaction );
1943         }
1944
1945         static function makeSpecialUrlSubpage( $name, $subpage, $urlaction = '' ) {
1946                 $title = SpecialPage::getSafeTitleFor( $name, $subpage );
1947                 return $title->getLocalURL( $urlaction );
1948         }
1949
1950         static function makeI18nUrl( $name, $urlaction = '' ) {
1951                 $title = Title::newFromText( wfMsgForContent( $name ) );
1952                 self::checkTitle( $title, $name );
1953                 return $title->getLocalURL( $urlaction );
1954         }
1955
1956         static function makeUrl( $name, $urlaction = '' ) {
1957                 $title = Title::newFromText( $name );
1958                 self::checkTitle( $title, $name );
1959                 return $title->getLocalURL( $urlaction );
1960         }
1961
1962         # If url string starts with http, consider as external URL, else
1963         # internal
1964         static function makeInternalOrExternalUrl( $name ) {
1965                 if ( preg_match( '/^(?:' . wfUrlProtocols() . ')/', $name ) ) {
1966                         return $name;
1967                 } else {
1968                         return self::makeUrl( $name );
1969                 }
1970         }
1971
1972         # this can be passed the NS number as defined in Language.php
1973         static function makeNSUrl( $name, $urlaction = '', $namespace = NS_MAIN ) {
1974                 $title = Title::makeTitleSafe( $namespace, $name );
1975                 self::checkTitle( $title, $name );
1976                 return $title->getLocalURL( $urlaction );
1977         }
1978
1979         /* these return an array with the 'href' and boolean 'exists' */
1980         static function makeUrlDetails( $name, $urlaction = '' ) {
1981                 $title = Title::newFromText( $name );
1982                 self::checkTitle( $title, $name );
1983                 return array(
1984                         'href' => $title->getLocalURL( $urlaction ),
1985                         'exists' => $title->getArticleID() != 0 ? true : false
1986                 );
1987         }
1988
1989         /**
1990          * Make URL details where the article exists (or at least it's convenient to think so)
1991          */
1992         static function makeKnownUrlDetails( $name, $urlaction = '' ) {
1993                 $title = Title::newFromText( $name );
1994                 self::checkTitle( $title, $name );
1995                 return array(
1996                         'href' => $title->getLocalURL( $urlaction ),
1997                         'exists' => true
1998                 );
1999         }
2000
2001         # make sure we have some title to operate on
2002         static function checkTitle( &$title, $name ) {
2003                 if( !is_object( $title ) ) {
2004                         $title = Title::newFromText( $name );
2005                         if( !is_object( $title ) ) {
2006                                 $title = Title::newFromText( '--error: link target missing--' );
2007                         }
2008                 }
2009         }
2010
2011         /**
2012          * Build an array that represents the sidebar(s), the navigation bar among them
2013          *
2014          * @return array
2015          */
2016         function buildSidebar() {
2017                 global $parserMemc, $wgEnableSidebarCache, $wgSidebarCacheExpiry;
2018                 global $wgLang;
2019                 wfProfileIn( __METHOD__ );
2020
2021                 $key = wfMemcKey( 'sidebar', $wgLang->getCode() );
2022
2023                 if ( $wgEnableSidebarCache ) {
2024                         $cachedsidebar = $parserMemc->get( $key );
2025                         if ( $cachedsidebar ) {
2026                                 wfProfileOut( __METHOD__ );
2027                                 return $cachedsidebar;
2028                         }
2029                 }
2030
2031                 $bar = array();
2032                 $lines = explode( "\n", wfMsgForContent( 'sidebar' ) );
2033                 $heading = '';
2034                 foreach( $lines as $line ) {
2035                         if( strpos( $line, '*' ) !== 0 )
2036                                 continue;
2037                         if( strpos( $line, '**') !== 0 ) {
2038                                 $heading = trim( $line, '* ' );
2039                                 if( !array_key_exists( $heading, $bar ) ) $bar[$heading] = array();
2040                         } else {
2041                                 if( strpos( $line, '|' ) !== false ) { // sanity check
2042                                         $line = array_map( 'trim', explode( '|', trim( $line, '* ' ), 2 ) );
2043                                         $link = wfMsgForContent( $line[0] );
2044                                         if( $link == '-' )
2045                                                 continue;
2046
2047                                         $text = wfMsgExt( $line[1], 'parsemag' );
2048                                         if( wfEmptyMsg( $line[1], $text ) )
2049                                                 $text = $line[1];
2050                                         if( wfEmptyMsg( $line[0], $link ) )
2051                                                 $link = $line[0];
2052
2053                                         if ( preg_match( '/^(?:' . wfUrlProtocols() . ')/', $link ) ) {
2054                                                 $href = $link;
2055                                         } else {
2056                                                 $title = Title::newFromText( $link );
2057                                                 if ( $title ) {
2058                                                         $title = $title->fixSpecialName();
2059                                                         $href = $title->getLocalURL();
2060                                                 } else {
2061                                                         $href = 'INVALID-TITLE';
2062                                                 }
2063                                         }
2064
2065                                         $bar[$heading][] = array(
2066                                                 'text' => $text,
2067                                                 'href' => $href,
2068                                                 'id' => 'n-' . strtr( $line[1], ' ', '-' ),
2069                                                 'active' => false
2070                                         );
2071                                 } else { continue; }
2072                         }
2073                 }
2074                 wfRunHooks( 'SkinBuildSidebar', array( $this, &$bar ) );
2075                 if ( $wgEnableSidebarCache ) $parserMemc->set( $key, $bar, $wgSidebarCacheExpiry );
2076                 wfProfileOut( __METHOD__ );
2077                 return $bar;
2078         }
2079
2080         /**
2081          * Should we include common/wikiprintable.css?  Skins that have their own
2082          * print stylesheet should override this and return false.  (This is an
2083          * ugly hack to get Monobook to play nicely with
2084          * OutputPage::headElement().)
2085          *
2086          * @return bool
2087          */
2088         public function commonPrintStylesheet() {
2089                 return true;
2090         }
2091 }