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 $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                 global $wgSitename, $wgEnableIframeApiProxy, $wgEnableJS2system;
 367
 368                 $ns = $wgTitle->getNamespace();
 369                 $nsname = MWNamespace::exists( $ns ) ? MWNamespace::getCanonicalName( $ns ) : $wgTitle->getNsText();
 370                 $separatorTransTable = $wgContLang->separatorTransformTable();
 371                 $separatorTransTable = $separatorTransTable ? $separatorTransTable : array();
 372                 $compactSeparatorTransTable = array(
 373                         implode( "\t", array_keys( $separatorTransTable ) ),
 374                         implode( "\t", $separatorTransTable ),
 375                 );
 376                 $digitTransTable = $wgContLang->digitTransformTable();
 377                 $digitTransTable = $digitTransTable ? $digitTransTable : array();
 378                 $compactDigitTransTable = array(
 379                         implode( "\t", array_keys( $digitTransTable ) ),
 380                         implode( "\t", $digitTransTable ),
 381                 );
 382
 383                 $mainPage = Title::newFromText( wfMsgForContent( 'mainpage' ) );
 384                 $vars = array(
 385                         'skin' => $skinName,
 386                         'stylepath' => $wgStylePath,
 387                         'wgArticlePath' => $wgArticlePath,
 388                         'wgScriptPath' => $wgScriptPath,
 389                         'wgScriptExtension' => $wgScriptExtension,
 390                         'wgScript' => $wgScript,
 391                         'wgVariantArticlePath' => $wgVariantArticlePath,
 392                         'wgActionPaths' => (object)$wgActionPaths,
 393                         'wgServer' => $wgServer,
 394                         'wgCanonicalNamespace' => $nsname,
 395                         'wgCanonicalSpecialPageName' => $ns == NS_SPECIAL ?
 396                                 SpecialPage::resolveAlias( $wgTitle->getDBkey() ) : false, # bug 21115
 397                         'wgNamespaceNumber' => $wgTitle->getNamespace(),
 398                         'wgPageName' => $wgTitle->getPrefixedDBKey(),
 399                         'wgTitle' => $wgTitle->getText(),
 400                         'wgAction' => $wgRequest->getText( 'action', 'view' ),
 401                         'wgArticleId' => $wgTitle->getArticleId(),
 402                         'wgIsArticle' => $wgOut->isArticle(),
 403                         'wgUserName' => $wgUser->isAnon() ? NULL : $wgUser->getName(),
 404                         'wgUserGroups' => $wgUser->isAnon() ? NULL : $wgUser->getEffectiveGroups(),
 405                         'wgUserLanguage' => $wgLang->getCode(),
 406                         'wgContentLanguage' => $wgContLang->getCode(),
 407                         'wgBreakFrames' => $wgBreakFrames,
 408                         'wgCurRevisionId' => isset( $wgArticle ) ? $wgArticle->getLatest() : 0,
 409                         'wgVersion' => $wgVersion,
 410                         'wgEnableAPI' => $wgEnableAPI,
 411                         'wgEnableWriteAPI' => $wgEnableWriteAPI,
 412                         'wgSeparatorTransformTable' => $compactSeparatorTransTable,
 413                         'wgDigitTransformTable' => $compactDigitTransTable,
 414                         'wgMainPageTitle' => $mainPage ? $mainPage->getPrefixedText() : null,
 415                         'wgFormattedNamespaces' => $wgContLang->getFormattedNamespaces(),
 416                         'wgNamespaceIds' => $wgContLang->getNamespaceIds(),
 417                         'wgSiteName' => $wgSitename,
 418                 );
 419                 if ( $wgContLang->hasVariants() ) {
 420                         $vars['wgUserVariant'] = $wgContLang->getPreferredVariant();
 421                 }
 422
 423                 //if on upload page output the extension list & js_upload
 424                 if( SpecialPage::resolveAlias( $wgTitle->getDBkey() ) ==  "Upload" ) {
 425                         global $wgFileExtensions, $wgAjaxUploadInterface;
 426                         $vars['wgFileExtensions'] = $wgFileExtensions;
 427                         $vars['wgAjaxUploadInterface'] = $wgAjaxUploadInterface;
 428                 }
 429
 430                 if( $wgUseAjax && $wgEnableMWSuggest && !$wgUser->getOption( 'disablesuggest', false ) ){
 431                         $vars['wgMWSuggestTemplate'] = SearchEngine::getMWSuggestTemplate();
 432                         $vars['wgDBname'] = $wgDBname;
 433                         $vars['wgSearchNamespaces'] = SearchEngine::userNamespaces( $wgUser );
 434                         $vars['wgMWSuggestMessages'] = array( wfMsg( 'search-mwsuggest-enabled' ), wfMsg( 'search-mwsuggest-disabled' ) );
 435                 }
 436
 437                 foreach( $wgRestrictionTypes as $type )
 438                         $vars['wgRestriction' . ucfirst( $type )] = $wgTitle->getRestrictions( $type );
 439
 440                 if ( $wgLivePreview && $wgUser->getOption( 'uselivepreview' ) ) {
 441                         $vars['wgLivepreviewMessageLoading'] = wfMsg( 'livepreview-loading' );
 442                         $vars['wgLivepreviewMessageReady']   = wfMsg( 'livepreview-ready' );
 443                         $vars['wgLivepreviewMessageFailed']  = wfMsg( 'livepreview-failed' );
 444                         $vars['wgLivepreviewMessageError']   = wfMsg( 'livepreview-error' );
 445                 }
 446
 447                 //add api proxy var and script link if on the special proxy page:
 448                 if( $wgEnableJS2system &&
 449                         $wgTitle->getNamespace() == NS_MEDIAWIKI &&
 450                         $wgTitle->getDBKey() == 'ApiProxy' )
 451                 {
 452                         $vars['wgEnableIframeApiProxy'] = $wgEnableIframeApiProxy;
 453                         //also add the apiProxy Page script if we are on that page
 454                         if( $wgEnableIframeApiProxy )
 455                                 $wgOut->addScriptClass( 'apiProxyPage' );
 456                 }
 457
 458                 if ( $wgOut->isArticleRelated() && $wgUseAjax && $wgAjaxWatch && $wgUser->isLoggedIn() ) {
 459                         $msgs = (object)array();
 460                         foreach ( array( 'watch', 'unwatch', 'watching', 'unwatching' ) as $msgName ) {
 461                                 $msgs->{$msgName . 'Msg'} = wfMsg( $msgName );
 462                         }
 463                         $vars['wgAjaxWatch'] = $msgs;
 464                 }
 465
 466                 // Allow extensions to add their custom variables to the global JS variables
 467                 wfRunHooks( 'MakeGlobalVariablesScript', array( &$vars ) );
 468
 469                 return self::makeVariablesScript( $vars );
 470         }
 471
 472         /**
 473          * To make it harder for someone to slip a user a fake
 474          * user-JavaScript or user-CSS preview, a random token
 475          * is associated with the login session. If it's not
 476          * passed back with the preview request, we won't render
 477          * the code.
 478          *
 479          * @param string $action
 480          * @return bool
 481          */
 482         public function userCanPreview( $action ) {
 483                 global $wgRequest, $wgUser;
 484
 485                 if( $action != 'submit' )
 486                         return false;
 487                 if( !$wgRequest->wasPosted() )
 488                         return false;
 489                 if( !$this->mTitle->userCanEditCssSubpage() )
 490                         return false;
 491                 if( !$this->mTitle->userCanEditJsSubpage() )
 492                         return false;
 493                 return $wgUser->matchEditToken(
 494                         $wgRequest->getVal( 'wpEditToken' ) );
 495         }
 496
 497         /**
 498          * generated JavaScript action=raw&gen=js
 499          * This returns MediaWiki:Common.js and MediaWiki:[Skinname].js concate-
 500          * nated together.  For some bizarre reason, it does *not* return any
 501          * custom user JS from subpages.  Huh?
 502          *
 503          * There's absolutely no reason to have separate Monobook/Common JSes.
 504          * Any JS that cares can just check the skin variable generated at the
 505          * top.  For now Monobook.js will be maintained, but it should be consi-
 506          * dered deprecated.
 507          *
 508          * @param $force_skin string If set, overrides the skin name
 509          *
 510          * @return string
 511          */
 512         public function generateUserJs( $skinName = null ) {
 513                 global $wgStylePath;
 514
 515                 wfProfileIn( __METHOD__ );
 516                 if( !$skinName ) {
 517                         $skinName =     $this->getSkinName();
 518                 }
 519
 520                 $s = "/* generated javascript */\n";
 521                 $s .= "var skin = '" . Xml::escapeJsString($skinName ) . "';\n";
 522                 $s .= "var stylepath = '" . Xml::escapeJsString( $wgStylePath ) . "';";
 523                 $s .= "\n\n/* MediaWiki:Common.js */\n";
 524                 $commonJs = wfMsgForContent( 'common.js' );
 525                 if ( !wfEmptyMsg( 'common.js', $commonJs ) ) {
 526                         $s .= $commonJs;
 527                 }
 528
 529                 $s .= "\n\n/* MediaWiki:".ucfirst( $skinName ).".js */\n";
 530                 // avoid inclusion of non defined user JavaScript (with custom skins only)
 531                 // by checking for default message content
 532                 $msgKey = ucfirst( $skinName ) . '.js';
 533                 $userJS = wfMsgForContent( $msgKey );
 534                 if ( !wfEmptyMsg( $msgKey, $userJS ) ) {
 535                         $s .= $userJS;
 536                 }
 537
 538                 wfProfileOut( __METHOD__ );
 539                 return $s;
 540         }
 541
 542         /**
 543          * Generate user stylesheet for action=raw&gen=css
 544          */
 545         public function generateUserStylesheet() {
 546                 wfProfileIn( __METHOD__ );
 547                 $s = "/* generated user stylesheet */\n" .
 548                         $this->reallyGenerateUserStylesheet();
 549                 wfProfileOut( __METHOD__ );
 550                 return $s;
 551         }
 552
 553         /**
 554          * Split for easier subclassing in SkinSimple, SkinStandard and SkinCologneBlue
 555          */
 556         protected function reallyGenerateUserStylesheet(){
 557                 global $wgUser;
 558                 $s = '';
 559                 if( ( $undopt = $wgUser->getOption( 'underline' ) ) < 2 ) {
 560                         $underline = $undopt ? 'underline' : 'none';
 561                         $s .= "a { text-decoration: $underline; }\n";
 562                 }
 563                 if( $wgUser->getOption( 'highlightbroken' ) ) {
 564                         $s .= "a.new, #quickbar a.new { color: #CC2200; }\n";
 565                 } else {
 566                         $s .= <<<END
 567 a.new, #quickbar a.new,
 568 a.stub, #quickbar a.stub {
 569         color: inherit;
 570 }
 571 a.new:after, #quickbar a.new:after {
 572         content: "?";
 573         color: #CC2200;
 574 }
 575 a.stub:after, #quickbar a.stub:after {
 576         content: "!";
 577         color: #772233;
 578 }
 579 END;
 580                 }
 581                 if( $wgUser->getOption( 'justify' ) ) {
 582                         $s .= "#article, #bodyContent, #mw_content { text-align: justify; }\n";
 583                 }
 584                 if( !$wgUser->getOption( 'showtoc' ) ) {
 585                         $s .= "#toc { display: none; }\n";
 586                 }
 587                 if( !$wgUser->getOption( 'editsection' ) ) {
 588                         $s .= ".editsection { display: none; }\n";
 589                 }
 590                 $fontstyle = $wgUser->getOption( 'editfont' );
 591                 if ( $fontstyle !== 'default' ) {
 592                         $s .= "textarea { font-family: $fontstyle; }\n";
 593                 }
 594                 return $s;
 595         }
 596
 597         /**
 598          * @private
 599          */
 600         function setupUserCss( OutputPage $out ) {
 601                 global $wgRequest, $wgContLang, $wgUser;
 602                 global $wgAllowUserCss, $wgUseSiteCss, $wgSquidMaxage, $wgStylePath;
 603
 604                 wfProfileIn( __METHOD__ );
 605
 606                 $this->setupSkinUserCss( $out );
 607
 608                 $siteargs = array(
 609                         'action' => 'raw',
 610                         'maxage' => $wgSquidMaxage,
 611                 );
 612
 613                 // Add any extension CSS
 614                 foreach ( $out->getExtStyle() as $url ) {
 615                         $out->addStyle( $url );
 616                 }
 617
 618                 // If we use the site's dynamic CSS, throw that in, too
 619                 // Per-site custom styles
 620                 if( $wgUseSiteCss ) {
 621                         global $wgHandheldStyle;
 622                         $query = wfArrayToCGI( array(
 623                                 'usemsgcache' => 'yes',
 624                                 'ctype' => 'text/css',
 625                                 'smaxage' => $wgSquidMaxage
 626                         ) + $siteargs );
 627                         # Site settings must override extension css! (bug 15025)
 628                         $out->addStyle( self::makeNSUrl( 'Common.css', $query, NS_MEDIAWIKI ) );
 629                         $out->addStyle( self::makeNSUrl( 'Print.css', $query, NS_MEDIAWIKI ), 'print' );
 630                         if( $wgHandheldStyle ) {
 631                                 $out->addStyle( self::makeNSUrl( 'Handheld.css', $query, NS_MEDIAWIKI ), 'handheld' );
 632                         }
 633                         $out->addStyle( self::makeNSUrl( $this->getSkinName() . '.css', $query, NS_MEDIAWIKI ) );
 634                 }
 635
 636                 if( $wgUser->isLoggedIn() ) {
 637                         // Ensure that logged-in users' generated CSS isn't clobbered
 638                         // by anons' publicly cacheable generated CSS.
 639                         $siteargs['smaxage'] = '0';
 640                         $siteargs['ts'] = $wgUser->mTouched;
 641                 }
 642                 // Per-user styles based on preferences
 643                 $siteargs['gen'] = 'css';
 644                 if( ( $us = $wgRequest->getVal( 'useskin', '' ) ) !== '' ) {
 645                         $siteargs['useskin'] = $us;
 646                 }
 647                 $out->addStyle( self::makeUrl( '-', wfArrayToCGI( $siteargs ) ) );
 648
 649                 // Per-user custom style pages
 650                 if( $wgAllowUserCss && $wgUser->isLoggedIn() ) {
 651                         $action = $wgRequest->getVal( 'action' );
 652                         # If we're previewing the CSS page, use it
 653                         if( $this->mTitle->isCssSubpage() && $this->userCanPreview( $action ) ) {
 654                                 // @FIXME: properly escape the cdata!
 655                                 $out->addInlineStyle( $wgRequest->getText( 'wpTextbox1' ) );
 656                         } else {
 657                                 $out->addStyle( self::makeUrl( $this->userpage . '/' . $this->getSkinName() .'.css',
 658                                         'action=raw&ctype=text/css' ) );
 659                         }
 660                 }
 661
 662                 wfProfileOut( __METHOD__ );
 663         }
 664
 665         /**
 666          * Add skin specific stylesheets
 667          * @param $out OutputPage
 668          */
 669         function setupSkinUserCss( OutputPage $out ) {
 670                 $out->addStyle( 'common/shared.css' );
 671                 $out->addStyle( 'common/oldshared.css' );
 672                 $out->addStyle( $this->getStylesheet() );
 673                 $out->addStyle( 'common/common_rtl.css', '', '', 'rtl' );
 674         }
 675
 676         function getBodyOptions() {
 677                 global $wgUser, $wgOut, $wgRequest, $wgContLang;
 678
 679                 extract( $wgRequest->getValues( 'oldid', 'redirect', 'diff' ) );
 680
 681                 if ( 0 != $this->mTitle->getNamespace() ) {
 682                         $a = array( 'bgcolor' => '#ffffec' );
 683                 }
 684                 else $a = array( 'bgcolor' => '#FFFFFF' );
 685                 if( $wgOut->isArticle() && $wgUser->getOption( 'editondblclick' ) &&
 686                   $this->mTitle->quickUserCan( 'edit' ) ) {
 687                         $s = $this->mTitle->getFullURL( $this->editUrlOptions() );
 688                         $s = 'document.location = "' .Xml::escapeJsString( $s ) .'";';
 689                         $a += array( 'ondblclick' => $s );
 690                 }
 691                 $a['onload'] = $wgOut->getOnloadHandler();
 692                 $a['class'] =
 693                         'mediawiki' .
 694                         ' '.( $wgContLang->getDir() ).
 695                         ' '.$this->getPageClasses( $this->mTitle ) .
 696                         ' skin-'. Sanitizer::escapeClass( $this->getSkinName() );
 697                 return $a;
 698         }
 699
 700         function getPageClasses( $title ) {
 701                 $numeric = 'ns-'.$title->getNamespace();
 702                 if( $title->getNamespace() == NS_SPECIAL ) {
 703                         $type = 'ns-special';
 704                 } elseif( $title->isTalkPage() ) {
 705                         $type = 'ns-talk';
 706                 } else {
 707                         $type = 'ns-subject';
 708                 }
 709                 $name = Sanitizer::escapeClass( 'page-'.$title->getPrefixedText() );
 710                 return "$numeric $type $name";
 711         }
 712
 713         /**
 714          * URL to the logo
 715          */
 716         function getLogo() {
 717                 global $wgLogo;
 718                 return $wgLogo;
 719         }
 720
 721         /**
 722          * This will be called immediately after the <body> tag.  Split into
 723          * two functions to make it easier to subclass.
 724          */
 725         function beforeContent() {
 726                 return $this->doBeforeContent();
 727         }
 728
 729         function doBeforeContent() {
 730                 global $wgContLang;
 731                 wfProfileIn( __METHOD__ );
 732
 733                 $s = '';
 734                 $qb = $this->qbSetting();
 735
 736                 if( $langlinks = $this->otherLanguages() ) {
 737                         $rows = 2;
 738                         $borderhack = '';
 739                 } else {
 740                         $rows = 1;
 741                         $langlinks = false;
 742                         $borderhack = 'class="top"';
 743                 }
 744
 745                 $s .= "\n<div id='content'>\n<div id='topbar'>\n" .
 746                   "<table border='0' cellspacing='0' width='98%'>\n<tr>\n";
 747
 748                 $shove = ( $qb != 0 );
 749                 $left = ( $qb == 1 || $qb == 3 );
 750                 if( $wgContLang->isRTL() ) $left = !$left;
 751
 752                 if( !$shove ) {
 753                         $s .= "<td class='top' align='left' valign='top' rowspan='{$rows}'>\n" .
 754                           $this->logoText() . '</td>';
 755                 } elseif( $left ) {
 756                         $s .= $this->getQuickbarCompensator( $rows );
 757                 }
 758                 $l = $wgContLang->alignStart();
 759                 $s .= "<td {$borderhack} align='$l' valign='top'>\n";
 760
 761                 $s .= $this->topLinks();
 762                 $s .= "<p class='subtitle'>" . $this->pageTitleLinks() . "</p>\n";
 763
 764                 $r = $wgContLang->alignEnd();
 765                 $s .= "</td>\n<td {$borderhack} valign='top' align='$r' nowrap='nowrap'>";
 766                 $s .= $this->nameAndLogin();
 767                 $s .= "\n<br />" . $this->searchForm() . "</td>";
 768
 769                 if ( $langlinks ) {
 770                         $s .= "</tr>\n<tr>\n<td class='top' colspan=\"2\">$langlinks</td>\n";
 771                 }
 772
 773                 if ( $shove && !$left ) { # Right
 774                         $s .= $this->getQuickbarCompensator( $rows );
 775                 }
 776                 $s .= "</tr>\n</table>\n</div>\n";
 777                 $s .= "\n<div id='article'>\n";
 778
 779                 $notice = wfGetSiteNotice();
 780                 if( $notice ) {
 781                         $s .= "\n<div id='siteNotice'>$notice</div>\n";
 782                 }
 783                 $s .= $this->pageTitle();
 784                 $s .= $this->pageSubtitle();
 785                 $s .= $this->getCategories();
 786                 wfProfileOut( __METHOD__ );
 787                 return $s;
 788         }
 789
 790
 791         function getCategoryLinks() {
 792                 global $wgOut, $wgUseCategoryBrowser;
 793                 global $wgContLang, $wgUser;
 794
 795                 if( count( $wgOut->mCategoryLinks ) == 0 ) return '';
 796
 797                 # Separator
 798                 $sep = wfMsgExt( 'catseparator', array( 'parsemag', 'escapenoentities' ) );
 799
 800                 // Use Unicode bidi embedding override characters,
 801                 // to make sure links don't smash each other up in ugly ways.
 802                 $dir = $wgContLang->getDir();
 803                 $embed = "<span dir='$dir'>";
 804                 $pop = '</span>';
 805
 806                 $allCats = $wgOut->getCategoryLinks();
 807                 $s = '';
 808                 $colon = wfMsgExt( 'colon-separator', 'escapenoentities' );
 809                 if ( !empty( $allCats['normal'] ) ) {
 810                         $t = $embed . implode( "{$pop} {$sep} {$embed}" , $allCats['normal'] ) . $pop;
 811
 812                         $msg = wfMsgExt( 'pagecategories', array( 'parsemag', 'escapenoentities' ), count( $allCats['normal'] ) );
 813                         $s .= '<div id="mw-normal-catlinks">' .
 814                                 $this->link( Title::newFromText( wfMsgForContent( 'pagecategorieslink' ) ), $msg )
 815                                 . $colon . $t . '</div>';
 816                 }
 817
 818                 # Hidden categories
 819                 if ( isset( $allCats['hidden'] ) ) {
 820                         if ( $wgUser->getBoolOption( 'showhiddencats' ) ) {
 821                                 $class ='mw-hidden-cats-user-shown';
 822                         } elseif ( $this->mTitle->getNamespace() == NS_CATEGORY ) {
 823                                 $class = 'mw-hidden-cats-ns-shown';
 824                         } else {
 825                                 $class = 'mw-hidden-cats-hidden';
 826                         }
 827                         $s .= "<div id=\"mw-hidden-catlinks\" class=\"$class\">" .
 828                                 wfMsgExt( 'hidden-categories', array( 'parsemag', 'escapenoentities' ), count( $allCats['hidden'] ) ) .
 829                                 $colon . $embed . implode( "$pop $sep $embed", $allCats['hidden'] ) . $pop .
 830                                 "</div>";
 831                 }
 832
 833                 # optional 'dmoz-like' category browser. Will be shown under the list
 834                 # of categories an article belong to
 835                 if( $wgUseCategoryBrowser ){
 836                         $s .= '<br /><hr />';
 837
 838                         # get a big array of the parents tree
 839                         $parenttree = $this->mTitle->getParentCategoryTree();
 840                         # Skin object passed by reference cause it can not be
 841                         # accessed under the method subfunction drawCategoryBrowser
 842                         $tempout = explode( "\n", Skin::drawCategoryBrowser( $parenttree, $this ) );
 843                         # Clean out bogus first entry and sort them
 844                         unset( $tempout[0] );
 845                         asort( $tempout );
 846                         # Output one per line
 847                         $s .= implode( "<br />\n", $tempout );
 848                 }
 849
 850                 return $s;
 851         }
 852
 853         /**
 854          * Render the array as a serie of links.
 855          * @param $tree Array: categories tree returned by Title::getParentCategoryTree
 856          * @param &skin Object: skin passed by reference
 857          * @return String separated by &gt;, terminate with "\n"
 858          */
 859         function drawCategoryBrowser( $tree, &$skin ){
 860                 $return = '';
 861                 foreach( $tree as $element => $parent ) {
 862                         if( empty( $parent ) ) {
 863                                 # element start a new list
 864                                 $return .= "\n";
 865                         } else {
 866                                 # grab the others elements
 867                                 $return .= Skin::drawCategoryBrowser( $parent, $skin ) . ' &gt; ';
 868                         }
 869                         # add our current element to the list
 870                         $eltitle = Title::newFromText( $element );
 871                         $return .=  $skin->link( $eltitle, $eltitle->getText() );
 872                 }
 873                 return $return;
 874         }
 875
 876         function getCategories() {
 877                 $catlinks = $this->getCategoryLinks();
 878
 879                 $classes = 'catlinks';
 880
 881                 // Check what we're showing
 882                 global $wgOut, $wgUser;
 883                 $allCats = $wgOut->getCategoryLinks();
 884                 $showHidden = $wgUser->getBoolOption( 'showhiddencats' ) ||
 885                                                 $this->mTitle->getNamespace() == NS_CATEGORY;
 886
 887                 if( empty($allCats['normal']) && !( !empty($allCats['hidden']) && $showHidden ) ) {
 888                         $classes .= ' catlinks-allhidden';
 889                 }
 890
 891                 return "<div id='catlinks' class='$classes'>{$catlinks}</div>";
 892         }
 893
 894         function getQuickbarCompensator( $rows = 1 ) {
 895                 return "<td width='152' rowspan='{$rows}'>&nbsp;</td>";
 896         }
 897
 898         /**
 899          * This runs a hook to allow extensions placing their stuff after content
 900          * and article metadata (e.g. categories).
 901          * Note: This function has nothing to do with afterContent().
 902          *
 903          * This hook is placed here in order to allow using the same hook for all
 904          * skins, both the SkinTemplate based ones and the older ones, which directly
 905          * use this class to get their data.
 906          *
 907          * The output of this function gets processed in SkinTemplate::outputPage() for
 908          * the SkinTemplate based skins, all other skins should directly echo it.
 909          *
 910          * Returns an empty string by default, if not changed by any hook function.
 911          */
 912         protected function afterContentHook() {
 913                 $data = '';
 914
 915                 if( wfRunHooks( 'SkinAfterContent', array( &$data ) ) ){
 916                         // adding just some spaces shouldn't toggle the output
 917                         // of the whole <div/>, so we use trim() here
 918                         if( trim( $data ) != '' ){
 919                                 // Doing this here instead of in the skins to
 920                                 // ensure that the div has the same ID in all
 921                                 // skins
 922                                 $data = "<div id='mw-data-after-content'>\n" .
 923                                         "\t$data\n" .
 924                                         "</div>\n";
 925                         }
 926                 } else {
 927                         wfDebug( "Hook SkinAfterContent changed output processing.\n" );
 928                 }
 929
 930                 return $data;
 931         }
 932
 933         /**
 934          * Generate debug data HTML for displaying at the bottom of the main content
 935          * area.
 936          * @return String HTML containing debug data, if enabled (otherwise empty).
 937          */
 938         protected function generateDebugHTML() {
 939                 global $wgShowDebug, $wgOut;
 940                 if ( $wgShowDebug ) {
 941                         $listInternals = $this->formatDebugHTML( $wgOut->mDebugtext );
 942                         return "\n<hr />\n<strong>Debug data:</strong><ul style=\"font-family:monospace;\" id=\"mw-debug-html\">" .
 943                                 $listInternals . "</ul>\n";
 944                 }
 945                 return '';
 946         }
 947
 948         private function formatDebugHTML( $debugText ) {
 949                 $lines = explode( "\n", $debugText );
 950                 $curIdent = 0;
 951                 $ret = '<li>';
 952                 foreach( $lines as $line ) {
 953                         $m = array();
 954                         $display = ltrim( $line );
 955                         $ident = strlen( $line ) - strlen( $display );
 956                         $diff = $ident - $curIdent;
 957
 958                         if ( $display == '' )
 959                                 $display = "\xc2\xa0";
 960
 961                         if ( !$ident && $diff < 0 && substr( $display, 0, 9 ) != 'Entering ' && substr( $display, 0, 8 ) != 'Exiting ' ) {
 962                                 $ident = $curIdent;
 963                                 $diff = 0;
 964                                 $display = '<span style="background:yellow;">' . htmlspecialchars( $display ) . '</span>';
 965                         } else {
 966                                 $display = htmlspecialchars( $display );
 967                         }
 968
 969                         if ( $diff < 0 )
 970                                 $ret .= str_repeat( "</li></ul>\n", -$diff ) . "</li><li>\n";
 971                         elseif ( $diff == 0 )
 972                                 $ret .= "</li><li>\n";
 973                         else
 974                                 $ret .= str_repeat( "<ul><li>\n", $diff );
 975                         $ret .= $display . "\n";
 976
 977                         $curIdent = $ident;
 978                 }
 979                 $ret .= str_repeat( '</li></ul>', $curIdent ) . '</li>';
 980                 return $ret;
 981         }
 982
 983         /**
 984          * This gets called shortly before the </body> tag.
 985          * @return String HTML to be put before </body>
 986          */
 987         function afterContent() {
 988                 $printfooter = "<div class=\"printfooter\">\n" . $this->printFooter() . "</div>\n";
 989                 return $printfooter . $this->generateDebugHTML() . $this->doAfterContent();
 990         }
 991
 992         /**
 993          * This gets called shortly before the </body> tag.
 994          * @return String HTML-wrapped JS code to be put before </body>
 995          */
 996         function bottomScripts() {
 997                 $bottomScriptText = "\n" . Html::inlineScript( 'if (window.runOnloadHook) runOnloadHook();' ) . "\n";
 998                 wfRunHooks( 'SkinAfterBottomScripts', array( $this, &$bottomScriptText ) );
 999                 return $bottomScriptText;
1000         }
1001
1002         /** @return string Retrievied from HTML text */
1003         function printSource() {
1004                 $url = htmlspecialchars( $this->mTitle->getFullURL() );
1005                 return wfMsg( 'retrievedfrom', '<a href="'.$url.'">'.$url.'</a>' );
1006         }
1007
1008         function printFooter() {
1009                 return "<p>" .  $this->printSource() .
1010                         "</p>\n\n<p>" . $this->pageStats() . "</p>\n";
1011         }
1012
1013         /** overloaded by derived classes */
1014         function doAfterContent() { return '</div></div>'; }
1015
1016         function pageTitleLinks() {
1017                 global $wgOut, $wgUser, $wgRequest, $wgLang;
1018
1019                 $oldid = $wgRequest->getVal( 'oldid' );
1020                 $diff = $wgRequest->getVal( 'diff' );
1021                 $action = $wgRequest->getText( 'action' );
1022
1023                 $s[] = $this->printableLink();
1024                 $disclaimer = $this->disclaimerLink(); # may be empty
1025                 if( $disclaimer ) {
1026                         $s[] = $disclaimer;
1027                 }
1028                 $privacy = $this->privacyLink(); # may be empty too
1029                 if( $privacy ) {
1030                         $s[] = $privacy;
1031                 }
1032
1033                 if ( $wgOut->isArticleRelated() ) {
1034                         if ( $this->mTitle->getNamespace() == NS_FILE ) {
1035                                 $name = $this->mTitle->getDBkey();
1036                                 $image = wfFindFile( $this->mTitle );
1037                                 if( $image ) {
1038                                         $link = htmlspecialchars( $image->getURL() );
1039                                         $style = $this->getInternalLinkAttributes( $link, $name );
1040                                         $s[] = "<a href=\"{$link}\"{$style}>{$name}</a>";
1041                                 }
1042                         }
1043                 }
1044                 if ( 'history' == $action || isset( $diff ) || isset( $oldid ) ) {
1045                         $s[] .= $this->link(
1046                                         $this->mTitle,
1047                                         wfMsg( 'currentrev' ),
1048                                         array(),
1049                                         array(),
1050                                         array( 'known', 'noclasses' )
1051                         );
1052                 }
1053
1054                 if ( $wgUser->getNewtalk() ) {
1055                         # do not show "You have new messages" text when we are viewing our
1056                         # own talk page
1057                         if( !$this->mTitle->equals( $wgUser->getTalkPage() ) ) {
1058                                 $tl = $this->link(
1059                                         $wgUser->getTalkPage(),
1060                                         wfMsgHtml( 'newmessageslink' ),
1061                                         array(),
1062                                         array( 'redirect' => 'no' ),
1063                                         array( 'known', 'noclasses' )
1064                                 );
1065
1066                                 $dl = $this->link(
1067                                         $wgUser->getTalkPage(),
1068                                         wfMsgHtml( 'newmessagesdifflink' ),
1069                                         array(),
1070                                         array( 'diff' => 'cur' ),
1071                                         array( 'known', 'noclasses' )
1072                                 );
1073                                 $s[] = '<strong>'. wfMsg( 'youhavenewmessages', $tl, $dl ) . '</strong>';
1074                                 # disable caching
1075                                 $wgOut->setSquidMaxage( 0 );
1076                                 $wgOut->enableClientCache( false );
1077                         }
1078                 }
1079
1080                 $undelete = $this->getUndeleteLink();
1081                 if( !empty( $undelete ) ) {
1082                         $s[] = $undelete;
1083                 }
1084                 return $wgLang->pipeList( $s );
1085         }
1086
1087         function getUndeleteLink() {
1088                 global $wgUser, $wgContLang, $wgLang, $wgRequest;
1089
1090                 $action = $wgRequest->getVal( 'action', 'view' );
1091
1092                 if ( $wgUser->isAllowed( 'deletedhistory' ) &&
1093                         ( $this->mTitle->getArticleId() == 0 || $action == 'history' ) ) {
1094                         $n = $this->mTitle->isDeleted();
1095                         if ( $n ) {
1096                                 if ( $wgUser->isAllowed( 'undelete' ) ) {
1097                                         $msg = 'thisisdeleted';
1098                                 } else {
1099                                         $msg = 'viewdeleted';
1100                                 }
1101                                 return wfMsg(
1102                                         $msg,
1103                                         $this->link(
1104                                                 SpecialPage::getTitleFor( 'Undelete', $this->mTitle->getPrefixedDBkey() ),
1105                                                 wfMsgExt( 'restorelink', array( 'parsemag', 'escape' ), $wgLang->formatNum( $n ) ),
1106                                                 array(),
1107                                                 array(),
1108                                                 array( 'known', 'noclasses' )
1109                                         )
1110                                 );
1111                         }
1112                 }
1113                 return '';
1114         }
1115
1116         function printableLink() {
1117                 global $wgOut, $wgFeedClasses, $wgRequest, $wgLang;
1118
1119                 $s = array();
1120
1121                 if ( !$wgOut->isPrintable() ) {
1122                         $printurl = $wgRequest->escapeAppendQuery( 'printable=yes' );
1123                         $s[] = "<a href=\"$printurl\" rel=\"alternate\">" . wfMsg( 'printableversion' ) . '</a>';
1124                 }
1125
1126                 if( $wgOut->isSyndicated() ) {
1127                         foreach( $wgFeedClasses as $format => $class ) {
1128                                 $feedurl = $wgRequest->escapeAppendQuery( "feed=$format" );
1129                                 $s[] = "<a href=\"$feedurl\" rel=\"alternate\" type=\"application/{$format}+xml\""
1130                                                 . " class=\"feedlink\">" . wfMsgHtml( "feed-$format" ) . "</a>";
1131                         }
1132                 }
1133                 return $wgLang->pipeList( $s );
1134         }
1135
1136         function pageTitle() {
1137                 global $wgOut;
1138                 $s = '<h1 class="pagetitle">' . $wgOut->getPageTitle() . '</h1>';
1139                 return $s;
1140         }
1141
1142         function pageSubtitle() {
1143                 global $wgOut;
1144
1145                 $sub = $wgOut->getSubtitle();
1146                 if ( '' == $sub ) {
1147                         global $wgExtraSubtitle;
1148                         $sub = wfMsgExt( 'tagline', 'parsemag' ) . $wgExtraSubtitle;
1149                 }
1150                 $subpages = $this->subPageSubtitle();
1151                 $sub .= !empty( $subpages ) ? "</p><p class='subpages'>$subpages" : '';
1152                 $s = "<p class='subtitle'>{$sub}</p>\n";
1153                 return $s;
1154         }
1155
1156         function subPageSubtitle() {
1157                 $subpages = '';
1158                 if( !wfRunHooks( 'SkinSubPageSubtitle', array( &$subpages ) ) )
1159                         return $subpages;
1160
1161                 global $wgOut;
1162                 if( $wgOut->isArticle() && MWNamespace::hasSubpages( $this->mTitle->getNamespace() ) ) {
1163                         $ptext = $this->mTitle->getPrefixedText();
1164                         if( preg_match( '/\//', $ptext ) ) {
1165                                 $links = explode( '/', $ptext );
1166                                 array_pop( $links );
1167                                 $c = 0;
1168                                 $growinglink = '';
1169                                 $display = '';
1170                                 foreach( $links as $link ) {
1171                                         $growinglink .= $link;
1172                                         $display .= $link;
1173                                         $linkObj = Title::newFromText( $growinglink );
1174                                         if( is_object( $linkObj ) && $linkObj->exists() ){
1175                                                 $getlink = $this->link(
1176                                                         $linkObj,
1177                                                         htmlspecialchars( $display ),
1178                                                         array(),
1179                                                         array(),
1180                                                         array( 'known', 'noclasses' )
1181                                                 );
1182                                                 $c++;
1183                                                 if( $c > 1 ) {
1184                                                         $subpages .= wfMsgExt( 'pipe-separator', 'escapenoentities' );
1185                                                 } else  {
1186                                                         $subpages .= '&lt; ';
1187                                                 }
1188                                                 $subpages .= $getlink;
1189                                                 $display = '';
1190                                         } else {
1191                                                 $display .= '/';
1192                                         }
1193                                         $growinglink .= '/';
1194                                 }
1195                         }
1196                 }
1197                 return $subpages;
1198         }
1199
1200         /**
1201          * Returns true if the IP should be shown in the header
1202          */
1203         function showIPinHeader() {
1204                 global $wgShowIPinHeader;
1205                 return $wgShowIPinHeader && session_id() != '';
1206         }
1207
1208         function nameAndLogin() {
1209                 global $wgUser, $wgLang, $wgContLang;
1210
1211                 $logoutPage = $wgContLang->specialPage( 'Userlogout' );
1212
1213                 $ret = '';
1214                 if ( $wgUser->isAnon() ) {
1215                         if( $this->showIPinHeader() ) {
1216                                 $name = wfGetIP();
1217
1218                                 $talkLink = $this->link( $wgUser->getTalkPage(),
1219                                         $wgLang->getNsText( NS_TALK ) );
1220
1221                                 $ret .= "$name ($talkLink)";
1222                         } else {
1223                                 $ret .= wfMsg( 'notloggedin' );
1224                         }
1225
1226                         $returnTo = $this->mTitle->getPrefixedDBkey();
1227                         $query = array();
1228                         if ( $logoutPage != $returnTo ) {
1229                                 $query['returnto'] = $returnTo;
1230                         }
1231
1232                         $loginlink = $wgUser->isAllowed( 'createaccount' )
1233                                 ? 'nav-login-createaccount'
1234                                 : 'login';
1235                         $ret .= "\n<br />" . $this->link(
1236                                 SpecialPage::getTitleFor( 'Userlogin' ),
1237                                 wfMsg( $loginlink ), array(), $query
1238                         );
1239                 } else {
1240                         $returnTo = $this->mTitle->getPrefixedDBkey();
1241                         $talkLink = $this->link( $wgUser->getTalkPage(),
1242                                 $wgLang->getNsText( NS_TALK ) );
1243
1244                         $ret .= $this->link( $wgUser->getUserPage(),
1245                                 htmlspecialchars( $wgUser->getName() ) );
1246                         $ret .= " ($talkLink)<br />";
1247                         $ret .= $wgLang->pipeList( array(
1248                                 $this->link(
1249                                         SpecialPage::getTitleFor( 'Userlogout' ), wfMsg( 'logout' ),
1250                                         array(), array( 'returnto' => $returnTo )
1251                                 ),
1252                                 $this->specialLink( 'preferences' ),
1253                         ) );
1254                 }
1255                 $ret = $wgLang->pipeList( array(
1256                         $ret,
1257                         $this->link(
1258                                 Title::newFromText( wfMsgForContent( 'helppage' ) ),
1259                                 wfMsg( 'help' )
1260                         ),
1261                 ) );
1262
1263                 return $ret;
1264         }
1265
1266         function getSearchLink() {
1267                 $searchPage = SpecialPage::getTitleFor( 'Search' );
1268                 return $searchPage->getLocalURL();
1269         }
1270
1271         function escapeSearchLink() {
1272                 return htmlspecialchars( $this->getSearchLink() );
1273         }
1274
1275         function searchForm() {
1276                 global $wgRequest, $wgUseTwoButtonsSearchForm;
1277                 $search = $wgRequest->getText( 'search' );
1278
1279                 $s = '<form id="searchform'.$this->searchboxes.'" name="search" class="inline" method="post" action="'
1280                   . $this->escapeSearchLink() . "\">\n"
1281                   . '<input type="text" id="searchInput'.$this->searchboxes.'" name="search" size="19" value="'
1282                   . htmlspecialchars( substr( $search, 0, 256 ) ) . "\" />\n"
1283                   . '<input type="submit" name="go" value="' . wfMsg( 'searcharticle' ) . '" />';
1284
1285                 if( $wgUseTwoButtonsSearchForm )
1286                         $s .= '&nbsp;<input type="submit" name="fulltext" value="' . wfMsg( 'searchbutton' ) . "\" />\n";
1287                 else
1288                         $s .= ' <a href="' . $this->escapeSearchLink() . '" rel="search">' . wfMsg( 'powersearch-legend' ) . "</a>\n";
1289
1290                 $s .= '</form>';
1291
1292                 // Ensure unique id's for search boxes made after the first
1293                 $this->searchboxes = $this->searchboxes == '' ? 2 : $this->searchboxes + 1;
1294
1295                 return $s;
1296         }
1297
1298         function topLinks() {
1299                 global $wgOut;
1300
1301                 $s = array(
1302                         $this->mainPageLink(),
1303                         $this->specialLink( 'recentchanges' )
1304                 );
1305
1306                 if ( $wgOut->isArticleRelated() ) {
1307                         $s[] = $this->editThisPage();
1308                         $s[] = $this->historyLink();
1309                 }
1310                 # Many people don't like this dropdown box
1311                 #$s[] = $this->specialPagesList();
1312
1313                 if( $this->variantLinks() ) {
1314                         $s[] = $this->variantLinks();
1315                 }
1316
1317                 if( $this->extensionTabLinks() ) {
1318                         $s[] = $this->extensionTabLinks();
1319                 }
1320
1321                 // FIXME: Is using Language::pipeList impossible here? Do not quite understand the use of the newline
1322                 return implode( $s, wfMsgExt( 'pipe-separator', 'escapenoentities' ) . "\n" );
1323         }
1324
1325         /**
1326          * Compatibility for extensions adding functionality through tabs.
1327          * Eventually these old skins should be replaced with SkinTemplate-based
1328          * versions, sigh...
1329          * @return string
1330          */
1331         function extensionTabLinks() {
1332                 $tabs = array();
1333                 $out = '';
1334                 $s = array();
1335                 wfRunHooks( 'SkinTemplateTabs', array( $this, &$tabs ) );
1336                 foreach( $tabs as $tab ) {
1337                         $s[] = Xml::element( 'a',
1338                                 array( 'href' => $tab['href'] ),
1339                                 $tab['text'] );
1340                 }
1341
1342                 if( count( $s ) ) {
1343                         global $wgLang;
1344
1345                         $out = wfMsgExt( 'pipe-separator' , 'escapenoentities' );
1346                         $out .= $wgLang->pipeList( $s );
1347                 }
1348
1349                 return $out;
1350         }
1351
1352         /**
1353          * Language/charset variant links for classic-style skins
1354          * @return string
1355          */
1356         function variantLinks() {
1357                 $s = '';
1358                 /* show links to different language variants */
1359                 global $wgDisableLangConversion, $wgLang, $wgContLang;
1360                 $variants = $wgContLang->getVariants();
1361                 if( !$wgDisableLangConversion && sizeof( $variants ) > 1 ) {
1362                         foreach( $variants as $code ) {
1363                                 $varname = $wgContLang->getVariantname( $code );
1364                                 if( $varname == 'disable' )
1365                                         continue;
1366                                 $s = $wgLang->pipeList( array(
1367                                         $s,
1368                                         '<a href="' . $this->mTitle->escapeLocalUrl( 'variant=' . $code ) . '">' . htmlspecialchars( $varname ) . '</a>'
1369                                 ) );
1370                         }
1371                 }
1372                 return $s;
1373         }
1374
1375         function bottomLinks() {
1376                 global $wgOut, $wgUser, $wgUseTrackbacks;
1377                 $sep = wfMsgExt( 'pipe-separator', 'escapenoentities' ) . "\n";
1378
1379                 $s = '';
1380                 if ( $wgOut->isArticleRelated() ) {
1381                         $element[] = '<strong>' . $this->editThisPage() . '</strong>';
1382                         if ( $wgUser->isLoggedIn() ) {
1383                                 $element[] = $this->watchThisPage();
1384                         }
1385                         $element[] = $this->talkLink();
1386                         $element[] = $this->historyLink();
1387                         $element[] = $this->whatLinksHere();
1388                         $element[] = $this->watchPageLinksLink();
1389
1390                         if( $wgUseTrackbacks )
1391                                 $element[] = $this->trackbackLink();
1392
1393                         if ( $this->mTitle->getNamespace() == NS_USER
1394                             || $this->mTitle->getNamespace() == NS_USER_TALK ){
1395                                 $id = User::idFromName( $this->mTitle->getText() );
1396                                 $ip = User::isIP( $this->mTitle->getText() );
1397
1398                                 if( $id || $ip ) { # both anons and non-anons have contri list
1399                                         $element[] = $this->userContribsLink();
1400                                 }
1401                                 if( $this->showEmailUser( $id ) ) {
1402                                         $element[] = $this->emailUserLink();
1403                                 }
1404                         }
1405
1406                         $s = implode( $element, $sep );
1407
1408                         if ( $this->mTitle->getArticleId() ) {
1409                                 $s .= "\n<br />";
1410                                 if( $wgUser->isAllowed( 'delete' ) ) { $s .= $this->deleteThisPage(); }
1411                                 if( $wgUser->isAllowed( 'protect' ) ) { $s .= $sep . $this->protectThisPage(); }
1412                                 if( $wgUser->isAllowed( 'move' ) ) { $s .= $sep . $this->moveThisPage(); }
1413                         }
1414                         $s .= "<br />\n" . $this->otherLanguages();
1415                 }
1416
1417                 return $s;
1418         }
1419
1420         function pageStats() {
1421                 global $wgOut, $wgLang, $wgArticle, $wgRequest, $wgUser;
1422                 global $wgDisableCounters, $wgMaxCredits, $wgShowCreditsIfMax, $wgPageShowWatchingUsers;
1423
1424                 $oldid = $wgRequest->getVal( 'oldid' );
1425                 $diff = $wgRequest->getVal( 'diff' );
1426                 if ( ! $wgOut->isArticle() ) { return ''; }
1427                 if( !$wgArticle instanceOf Article ) { return ''; }
1428                 if ( isset( $oldid ) || isset( $diff ) ) { return ''; }
1429                 if ( 0 == $wgArticle->getID() ) { return ''; }
1430
1431                 $s = '';
1432                 if ( !$wgDisableCounters ) {
1433                         $count = $wgLang->formatNum( $wgArticle->getCount() );
1434                         if ( $count ) {
1435                                 $s = wfMsgExt( 'viewcount', array( 'parseinline' ), $count );
1436                         }
1437                 }
1438
1439                 if( $wgMaxCredits != 0 ){
1440                         $s .= ' ' . Credits::getCredits( $wgArticle, $wgMaxCredits, $wgShowCreditsIfMax );
1441                 } else {
1442                         $s .= $this->lastModified();
1443                 }
1444
1445                 if( $wgPageShowWatchingUsers && $wgUser->getOption( 'shownumberswatching' ) ) {
1446                         $dbr = wfGetDB( DB_SLAVE );
1447                         $res = $dbr->select( 'watchlist',
1448                                 array( 'COUNT(*) AS n' ),
1449                                 array( 'wl_title' => $dbr->strencode( $this->mTitle->getDBkey() ), 'wl_namespace' => $this->mTitle->getNamespace() ),
1450                                 __METHOD__
1451                         );
1452                         $x = $dbr->fetchObject( $res );
1453
1454                         $s .= ' ' . wfMsgExt( 'number_of_watching_users_pageview',
1455                                 array( 'parseinline' ), $wgLang->formatNum( $x->n )
1456                         );
1457                 }
1458
1459                 return $s . ' ' .  $this->getCopyright();
1460         }
1461
1462         function getCopyright( $type = 'detect' ) {
1463                 global $wgRightsPage, $wgRightsUrl, $wgRightsText, $wgRequest, $wgArticle;
1464
1465                 if ( $type == 'detect' ) {
1466                         $diff = $wgRequest->getVal( 'diff' );
1467                         $isCur = $wgArticle && $wgArticle->isCurrent();
1468                         if ( is_null( $diff ) && !$isCur && wfMsgForContent( 'history_copyright' ) !== '-' ) {
1469                                 $type = 'history';
1470                         } else {
1471                                 $type = 'normal';
1472                         }
1473                 }
1474
1475                 if ( $type == 'history' ) {
1476                         $msg = 'history_copyright';
1477                 } else {
1478                         $msg = 'copyright';
1479                 }
1480
1481                 $out = '';
1482                 if( $wgRightsPage ) {
1483                         $title = Title::newFromText( $wgRightsPage );
1484                         $link = $this->linkKnown( $title, $wgRightsText );
1485                 } elseif( $wgRightsUrl ) {
1486                         $link = $this->makeExternalLink( $wgRightsUrl, $wgRightsText );
1487                 } elseif( $wgRightsText ) {
1488                         $link = $wgRightsText;
1489                 } else {
1490                         # Give up now
1491                         return $out;
1492                 }
1493                 // Allow for site and per-namespace customization of copyright notice.
1494                 if( isset($wgArticle) )
1495                         wfRunHooks( 'SkinCopyrightFooter', array( $wgArticle->getTitle(), $type, &$msg, &$link ) );
1496
1497                 $out .= wfMsgForContent( $msg, $link );
1498                 return $out;
1499         }
1500
1501         function getCopyrightIcon() {
1502                 global $wgRightsUrl, $wgRightsText, $wgRightsIcon, $wgCopyrightIcon;
1503                 $out = '';
1504                 if ( isset( $wgCopyrightIcon ) && $wgCopyrightIcon ) {
1505                         $out = $wgCopyrightIcon;
1506                 } else if ( $wgRightsIcon ) {
1507                         $icon = htmlspecialchars( $wgRightsIcon );
1508                         if ( $wgRightsUrl ) {
1509                                 $url = htmlspecialchars( $wgRightsUrl );
1510                                 $out .= '<a href="'.$url.'">';
1511                         }
1512                         $text = htmlspecialchars( $wgRightsText );
1513                         $out .= "<img src=\"$icon\" alt=\"$text\" width=\"88\" height=\"31\" />";
1514                         if ( $wgRightsUrl ) {
1515                                 $out .= '</a>';
1516                         }
1517                 }
1518                 return $out;
1519         }
1520
1521         function getPoweredBy() {
1522                 global $wgStylePath;
1523                 $url = htmlspecialchars( "$wgStylePath/common/images/poweredby_mediawiki_88x31.png" );
1524                 $img = '<a href="http://www.mediawiki.org/"><img src="'.$url.'" height="31" width="88" alt="Powered by MediaWiki" /></a>';
1525                 return $img;
1526         }
1527
1528         function lastModified() {
1529                 global $wgLang, $wgArticle;
1530                 if( $this->mRevisionId && $this->mRevisionId != $wgArticle->getLatest()) {
1531                         $timestamp = Revision::getTimestampFromId( $wgArticle->getTitle(), $this->mRevisionId );
1532                 } else {
1533                         $timestamp = $wgArticle->getTimestamp();
1534                 }
1535                 if ( $timestamp ) {
1536                         $d = $wgLang->date( $timestamp, true );
1537                         $t = $wgLang->time( $timestamp, true );
1538                         $s = ' ' . wfMsg( 'lastmodifiedat', $d, $t );
1539                 } else {
1540                         $s = '';
1541                 }
1542                 if ( wfGetLB()->getLaggedSlaveMode() ) {
1543                         $s .= ' <strong>' . wfMsg( 'laggedslavemode' ) . '</strong>';
1544                 }
1545                 return $s;
1546         }
1547
1548         function logoText( $align = '' ) {
1549                 if ( '' != $align ) {
1550                         $a = " align='{$align}'";
1551                 } else {
1552                         $a = '';
1553                 }
1554
1555                 $mp = wfMsg( 'mainpage' );
1556                 $mptitle = Title::newMainPage();
1557                 $url = ( is_object( $mptitle ) ? $mptitle->escapeLocalURL() : '' );
1558
1559                 $logourl = $this->getLogo();
1560                 $s = "<a href='{$url}'><img{$a} src='{$logourl}' alt='[{$mp}]' /></a>";
1561                 return $s;
1562         }
1563
1564         /**
1565          * show a drop-down box of special pages
1566          */
1567         function specialPagesList() {
1568                 global $wgUser, $wgContLang, $wgServer, $wgRedirectScript;
1569                 $pages = array_merge( SpecialPage::getRegularPages(), SpecialPage::getRestrictedPages() );
1570                 foreach ( $pages as $name => $page ) {
1571                         $pages[$name] = $page->getDescription();
1572                 }
1573
1574                 $go = wfMsg( 'go' );
1575                 $sp = wfMsg( 'specialpages' );
1576                 $spp = $wgContLang->specialPage( 'Specialpages' );
1577
1578                 $s = '<form id="specialpages" method="get" ' .
1579                   'action="' . htmlspecialchars( "{$wgServer}{$wgRedirectScript}" ) . "\">\n";
1580                 $s .= "<select name=\"wpDropdown\">\n";
1581                 $s .= "<option value=\"{$spp}\">{$sp}</option>\n";
1582
1583
1584                 foreach ( $pages as $name => $desc ) {
1585                         $p = $wgContLang->specialPage( $name );
1586                         $s .= "<option value=\"{$p}\">{$desc}</option>\n";
1587                 }
1588                 $s .= "</select>\n";
1589                 $s .= "<input type='submit' value=\"{$go}\" name='redirect' />\n";
1590                 $s .= "</form>\n";
1591                 return $s;
1592         }
1593
1594         function mainPageLink() {
1595                 $s = $this->link(
1596                         Title::newMainPage(),
1597                         wfMsg( 'mainpage' ),
1598                         array(),
1599                         array(),
1600                         array( 'known', 'noclasses' )
1601                 );
1602                 return $s;
1603         }
1604
1605         private function footerLink ( $desc, $page ) {
1606                 // if the link description has been set to "-" in the default language,
1607                 if ( wfMsgForContent( $desc )  == '-') {
1608                         // then it is disabled, for all languages.
1609                         return '';
1610                 } else {
1611                         // Otherwise, we display the link for the user, described in their
1612                         // language (which may or may not be the same as the default language),
1613                         // but we make the link target be the one site-wide page.
1614                         $title = Title::newFromText( wfMsgForContent( $page ) );
1615                         return $this->linkKnown(
1616                                 $title,
1617                                 wfMsgExt( $desc, array( 'parsemag', 'escapenoentities' ) )
1618                         );
1619                 }
1620         }
1621
1622         function privacyLink() {
1623                 return $this->footerLink( 'privacy', 'privacypage' );
1624         }
1625
1626         function aboutLink() {
1627                 return $this->footerLink( 'aboutsite', 'aboutpage' );
1628         }
1629
1630         function disclaimerLink() {
1631                 return $this->footerLink( 'disclaimers', 'disclaimerpage' );
1632         }
1633
1634         function editThisPage() {
1635                 global $wgOut;
1636
1637                 if ( !$wgOut->isArticleRelated() ) {
1638                         $s = wfMsg( 'protectedpage' );
1639                 } else {
1640                         if( $this->mTitle->quickUserCan( 'edit' ) && $this->mTitle->exists() ) {
1641                                 $t = wfMsg( 'editthispage' );
1642                         } elseif( $this->mTitle->quickUserCan( 'create' ) && !$this->mTitle->exists() ) {
1643                                 $t = wfMsg( 'create-this-page' );
1644                         } else {
1645                                 $t = wfMsg( 'viewsource' );
1646                         }
1647
1648                         $s = $this->link(
1649                                 $this->mTitle,
1650                                 $t,
1651                                 array(),
1652                                 $this->editUrlOptions(),
1653                                 array( 'known', 'noclasses' )
1654                         );
1655                 }
1656                 return $s;
1657         }
1658
1659         /**
1660          * Return URL options for the 'edit page' link.
1661          * This may include an 'oldid' specifier, if the current page view is such.
1662          *
1663          * @return array
1664          * @private
1665          */
1666         function editUrlOptions() {
1667                 global $wgArticle;
1668
1669                 $options = array( 'action' => 'edit' );
1670
1671                 if( $this->mRevisionId && ! $wgArticle->isCurrent() ) {
1672                         $options['oldid'] = intval( $this->mRevisionId );
1673                 }
1674
1675                 return $options;
1676         }
1677
1678         function deleteThisPage() {
1679                 global $wgUser, $wgRequest;
1680
1681                 $diff = $wgRequest->getVal( 'diff' );
1682                 if ( $this->mTitle->getArticleId() && ( !$diff ) && $wgUser->isAllowed( 'delete' ) ) {
1683                         $t = wfMsg( 'deletethispage' );
1684
1685                         $s = $this->link(
1686                                 $this->mTitle,
1687                                 $t,
1688                                 array(),
1689                                 array( 'action' => 'delete' ),
1690                                 array( 'known', 'noclasses' )
1691                         );
1692                 } else {
1693                         $s = '';
1694                 }
1695                 return $s;
1696         }
1697
1698         function protectThisPage() {
1699                 global $wgUser, $wgRequest;
1700
1701                 $diff = $wgRequest->getVal( 'diff' );
1702                 if ( $this->mTitle->getArticleId() && ( ! $diff ) && $wgUser->isAllowed('protect') ) {
1703                         if ( $this->mTitle->isProtected() ) {
1704                                 $text = wfMsg( 'unprotectthispage' );
1705                                 $query = array( 'action' => 'unprotect' );
1706                         } else {
1707                                 $text = wfMsg( 'protectthispage' );
1708                                 $query = array( 'action' => 'protect' );
1709                         }
1710
1711                         $s = $this->link(
1712                                 $this->mTitle,
1713                                 $text,
1714                                 array(),
1715                                 $query,
1716                                 array( 'known', 'noclasses' )
1717                         );
1718                 } else {
1719                         $s = '';
1720                 }
1721                 return $s;
1722         }
1723
1724         function watchThisPage() {
1725                 global $wgOut;
1726                 ++$this->mWatchLinkNum;
1727
1728                 if ( $wgOut->isArticleRelated() ) {
1729                         if ( $this->mTitle->userIsWatching() ) {
1730                                 $text = wfMsg( 'unwatchthispage' );
1731                                 $query = array( 'action' => 'unwatch' );
1732                                 $id = 'mw-unwatch-link' . $this->mWatchLinkNum;
1733                         } else {
1734                                 $text = wfMsg( 'watchthispage' );
1735                                 $query = array( 'action' => 'watch' );
1736                                 $id = 'mw-watch-link' . $this->mWatchLinkNum;
1737                         }
1738
1739                         $s = $this->link(
1740                                 $this->mTitle,
1741                                 $text,
1742                                 array( 'id' => $id ),
1743                                 $query,
1744                                 array( 'known', 'noclasses' )
1745                         );
1746                 } else {
1747                         $s = wfMsg( 'notanarticle' );
1748                 }
1749                 return $s;
1750         }
1751
1752         function moveThisPage() {
1753                 if ( $this->mTitle->quickUserCan( 'move' ) ) {
1754                         return $this->link(
1755                                 SpecialPage::getTitleFor( 'Movepage' ),
1756                                 wfMsg( 'movethispage' ),
1757                                 array(),
1758                                 array( 'target' => $this->mTitle->getPrefixedDBkey() ),
1759                                 array( 'known', 'noclasses' )
1760                         );
1761                 } else {
1762                         // no message if page is protected - would be redundant
1763                         return '';
1764                 }
1765         }
1766
1767         function historyLink() {
1768                 return $this->link(
1769                         $this->mTitle,
1770                         wfMsgHtml( 'history' ),
1771                         array( 'rel' => 'archives' ),
1772                         array( 'action' => 'history' )
1773                 );
1774         }
1775
1776         function whatLinksHere() {
1777                 return $this->link(
1778                         SpecialPage::getTitleFor( 'Whatlinkshere', $this->mTitle->getPrefixedDBkey() ),
1779                         wfMsgHtml( 'whatlinkshere' ),
1780                         array(),
1781                         array(),
1782                         array( 'known', 'noclasses' )
1783                 );
1784         }
1785
1786         function userContribsLink() {
1787                 return $this->link(
1788                         SpecialPage::getTitleFor( 'Contributions', $this->mTitle->getDBkey() ),
1789                         wfMsgHtml( 'contributions' ),
1790                         array(),
1791                         array(),
1792                         array( 'known', 'noclasses' )
1793                 );
1794         }
1795
1796         function showEmailUser( $id ) {
1797                 global $wgUser;
1798                 $targetUser = User::newFromId( $id );
1799                 return  $wgUser->canSendEmail() && # the sending user must have a confirmed email address
1800                         $targetUser->canReceiveEmail(); # the target user must have a confirmed email address and allow emails from users
1801         }
1802
1803         function emailUserLink() {
1804                 return $this->link(
1805                         SpecialPage::getTitleFor( 'Emailuser', $this->mTitle->getDBkey() ),
1806                         wfMsg( 'emailuser' ),
1807                         array(),
1808                         array(),
1809                         array( 'known', 'noclasses' )
1810                 );
1811         }
1812
1813         function watchPageLinksLink() {
1814                 global $wgOut;
1815                 if ( ! $wgOut->isArticleRelated() ) {
1816                         return '(' . wfMsg( 'notanarticle' ) . ')';
1817                 } else {
1818                         return $this->link(
1819                                 SpecialPage::getTitleFor( 'Recentchangeslinked', $this->mTitle->getPrefixedDBkey() ),
1820                                 wfMsg( 'recentchangeslinked-toolbox' ),
1821                                 array(),
1822                                 array(),
1823                                 array( 'known', 'noclasses' )
1824                         );
1825                 }
1826         }
1827
1828         function trackbackLink() {
1829                 return '<a href="' . $this->mTitle->trackbackURL() . '">'
1830                         . wfMsg( 'trackbacklink' ) . '</a>';
1831         }
1832
1833         function otherLanguages() {
1834                 global $wgOut, $wgContLang, $wgHideInterlanguageLinks;
1835
1836                 if ( $wgHideInterlanguageLinks ) {
1837                         return '';
1838                 }
1839
1840                 $a = $wgOut->getLanguageLinks();
1841                 if ( 0 == count( $a ) ) {
1842                         return '';
1843                 }
1844
1845                 $s = wfMsg( 'otherlanguages' ) . wfMsg( 'colon-separator' );
1846                 $first = true;
1847                 if( $wgContLang->isRTL() ) $s .= '<span dir="LTR">';
1848                 foreach( $a as $l ) {
1849                         if ( !$first ) {
1850                                 $s .= wfMsgExt( 'pipe-separator', 'escapenoentities' );
1851                         }
1852                         $first = false;
1853
1854                         $nt = Title::newFromText( $l );
1855                         $url = $nt->escapeFullURL();
1856                         $text = $wgContLang->getLanguageName( $nt->getInterwiki() );
1857
1858                         if ( '' == $text ) { $text = $l; }
1859                         $style = $this->getExternalLinkAttributes();
1860                         $s .= "<a href=\"{$url}\"{$style}>{$text}</a>";
1861                 }
1862                 if( $wgContLang->isRTL() ) $s .= '</span>';
1863                 return $s;
1864         }
1865
1866         function talkLink() {
1867                 if ( NS_SPECIAL == $this->mTitle->getNamespace() ) {
1868                         # No discussion links for special pages
1869                         return '';
1870                 }
1871
1872                 $linkOptions = array();
1873
1874                 if( $this->mTitle->isTalkPage() ) {
1875                         $link = $this->mTitle->getSubjectPage();
1876                         switch( $link->getNamespace() ) {
1877                                 case NS_MAIN:
1878                                         $text = wfMsg( 'articlepage' );
1879                                         break;
1880                                 case NS_USER:
1881                                         $text = wfMsg( 'userpage' );
1882                                         break;
1883                                 case NS_PROJECT:
1884                                         $text = wfMsg( 'projectpage' );
1885                                         break;
1886                                 case NS_FILE:
1887                                         $text = wfMsg( 'imagepage' );
1888                                         # Make link known if image exists, even if the desc. page doesn't.
1889                                         if( wfFindFile( $link ) )
1890                                                 $linkOptions[] = 'known';
1891                                         break;
1892                                 case NS_MEDIAWIKI:
1893                                         $text = wfMsg( 'mediawikipage' );
1894                                         break;
1895                                 case NS_TEMPLATE:
1896                                         $text = wfMsg( 'templatepage' );
1897                                         break;
1898                                 case NS_HELP:
1899                                         $text = wfMsg( 'viewhelppage' );
1900                                         break;
1901                                 case NS_CATEGORY:
1902                                         $text = wfMsg( 'categorypage' );
1903                                         break;
1904                                 default:
1905                                         $text = wfMsg( 'articlepage' );
1906                         }
1907                 } else {
1908                         $link = $this->mTitle->getTalkPage();
1909                         $text = wfMsg( 'talkpage' );
1910                 }
1911
1912                 $s = $this->link( $link, $text, array(), array(), $linkOptions );
1913
1914                 return $s;
1915         }
1916
1917         function commentLink() {
1918                 global $wgOut;
1919
1920                 if ( $this->mTitle->getNamespace() == NS_SPECIAL ) {
1921                         return '';
1922                 }
1923
1924                 # __NEWSECTIONLINK___ changes behaviour here
1925                 # If it is present, the link points to this page, otherwise
1926                 # it points to the talk page
1927                 if( $this->mTitle->isTalkPage() ) {
1928                         $title = $this->mTitle;
1929                 } elseif( $wgOut->showNewSectionLink() ) {
1930                         $title = $this->mTitle;
1931                 } else {
1932                         $title = $this->mTitle->getTalkPage();
1933                 }
1934
1935                 return $this->link(
1936                         $title,
1937                         wfMsg( 'postcomment' ),
1938                         array(),
1939                         array(
1940                                 'action' => 'edit',
1941                                 'section' => 'new'
1942                         ),
1943                         array( 'known', 'noclasses' )
1944                 );
1945         }
1946
1947         /* these are used extensively in SkinTemplate, but also some other places */
1948         static function makeMainPageUrl( $urlaction = '' ) {
1949                 $title = Title::newMainPage();
1950                 self::checkTitle( $title, '' );
1951                 return $title->getLocalURL( $urlaction );
1952         }
1953
1954         static function makeSpecialUrl( $name, $urlaction = '' ) {
1955                 $title = SpecialPage::getTitleFor( $name );
1956                 return $title->getLocalURL( $urlaction );
1957         }
1958
1959         static function makeSpecialUrlSubpage( $name, $subpage, $urlaction = '' ) {
1960                 $title = SpecialPage::getSafeTitleFor( $name, $subpage );
1961                 return $title->getLocalURL( $urlaction );
1962         }
1963
1964         static function makeI18nUrl( $name, $urlaction = '' ) {
1965                 $title = Title::newFromText( wfMsgForContent( $name ) );
1966                 self::checkTitle( $title, $name );
1967                 return $title->getLocalURL( $urlaction );
1968         }
1969
1970         static function makeUrl( $name, $urlaction = '' ) {
1971                 $title = Title::newFromText( $name );
1972                 self::checkTitle( $title, $name );
1973                 return $title->getLocalURL( $urlaction );
1974         }
1975
1976         # If url string starts with http, consider as external URL, else
1977         # internal
1978         static function makeInternalOrExternalUrl( $name ) {
1979                 if ( preg_match( '/^(?:' . wfUrlProtocols() . ')/', $name ) ) {
1980                         return $name;
1981                 } else {
1982                         return self::makeUrl( $name );
1983                 }
1984         }
1985
1986         # this can be passed the NS number as defined in Language.php
1987         static function makeNSUrl( $name, $urlaction = '', $namespace = NS_MAIN ) {
1988                 $title = Title::makeTitleSafe( $namespace, $name );
1989                 self::checkTitle( $title, $name );
1990                 return $title->getLocalURL( $urlaction );
1991         }
1992
1993         /* these return an array with the 'href' and boolean 'exists' */
1994         static function makeUrlDetails( $name, $urlaction = '' ) {
1995                 $title = Title::newFromText( $name );
1996                 self::checkTitle( $title, $name );
1997                 return array(
1998                         'href' => $title->getLocalURL( $urlaction ),
1999                         'exists' => $title->getArticleID() != 0 ? true : false
2000                 );
2001         }
2002
2003         /**
2004          * Make URL details where the article exists (or at least it's convenient to think so)
2005          */
2006         static function makeKnownUrlDetails( $name, $urlaction = '' ) {
2007                 $title = Title::newFromText( $name );
2008                 self::checkTitle( $title, $name );
2009                 return array(
2010                         'href' => $title->getLocalURL( $urlaction ),
2011                         'exists' => true
2012                 );
2013         }
2014
2015         # make sure we have some title to operate on
2016         static function checkTitle( &$title, $name ) {
2017                 if( !is_object( $title ) ) {
2018                         $title = Title::newFromText( $name );
2019                         if( !is_object( $title ) ) {
2020                                 $title = Title::newFromText( '--error: link target missing--' );
2021                         }
2022                 }
2023         }
2024
2025         /**
2026          * Build an array that represents the sidebar(s), the navigation bar among them
2027          *
2028          * @return array
2029          */
2030         function buildSidebar() {
2031                 global $parserMemc, $wgEnableSidebarCache, $wgSidebarCacheExpiry;
2032                 global $wgLang;
2033                 wfProfileIn( __METHOD__ );
2034
2035                 $key = wfMemcKey( 'sidebar', $wgLang->getCode() );
2036
2037                 if ( $wgEnableSidebarCache ) {
2038                         $cachedsidebar = $parserMemc->get( $key );
2039                         if ( $cachedsidebar ) {
2040                                 wfProfileOut( __METHOD__ );
2041                                 return $cachedsidebar;
2042                         }
2043                 }
2044
2045                 $bar = array();
2046                 $lines = explode( "\n", wfMsgForContent( 'sidebar' ) );
2047                 $heading = '';
2048                 foreach( $lines as $line ) {
2049                         if( strpos( $line, '*' ) !== 0 )
2050                                 continue;
2051                         if( strpos( $line, '**') !== 0 ) {
2052                                 $heading = trim( $line, '* ' );
2053                                 if( !array_key_exists( $heading, $bar ) ) $bar[$heading] = array();
2054                         } else {
2055                                 if( strpos( $line, '|' ) !== false ) { // sanity check
2056                                         $line = array_map( 'trim', explode( '|', trim( $line, '* ' ), 2 ) );
2057                                         $link = wfMsgForContent( $line[0] );
2058                                         if( $link == '-' )
2059                                                 continue;
2060
2061                                         $text = wfMsgExt( $line[1], 'parsemag' );
2062                                         if( wfEmptyMsg( $line[1], $text ) )
2063                                                 $text = $line[1];
2064                                         if( wfEmptyMsg( $line[0], $link ) )
2065                                                 $link = $line[0];
2066
2067                                         if ( preg_match( '/^(?:' . wfUrlProtocols() . ')/', $link ) ) {
2068                                                 $href = $link;
2069                                         } else {
2070                                                 $title = Title::newFromText( $link );
2071                                                 if ( $title ) {
2072                                                         $title = $title->fixSpecialName();
2073                                                         $href = $title->getLocalURL();
2074                                                 } else {
2075                                                         $href = 'INVALID-TITLE';
2076                                                 }
2077                                         }
2078
2079                                         $bar[$heading][] = array(
2080                                                 'text' => $text,
2081                                                 'href' => $href,
2082                                                 'id' => 'n-' . strtr( $line[1], ' ', '-' ),
2083                                                 'active' => false
2084                                         );
2085                                 } else { continue; }
2086                         }
2087                 }
2088                 wfRunHooks( 'SkinBuildSidebar', array( $this, &$bar ) );
2089                 if ( $wgEnableSidebarCache ) $parserMemc->set( $key, $bar, $wgSidebarCacheExpiry );
2090                 wfProfileOut( __METHOD__ );
2091                 return $bar;
2092         }
2093
2094         /**
2095          * Should we include common/wikiprintable.css?  Skins that have their own
2096          * print stylesheet should override this and return false.  (This is an
2097          * ugly hack to get Monobook to play nicely with
2098          * OutputPage::headElement().)
2099          *
2100          * @return bool
2101          */
2102         public function commonPrintStylesheet() {
2103                 return true;
2104         }
2105 }