includes/Skin.php

   1 <?php
   2 if ( ! defined( 'MEDIAWIKI' ) )
   3         die( 1 );
   4
   5 # See skin.txt
   6
   7 /**
   8  * The main skin class that provide methods and properties for all other skins.
   9  * This base class is also the "Standard" skin.
  10  *
  11  * See docs/skin.txt for more information.
  12  *
  13  * @addtogroup Skins
  14  */
  15 class Skin extends Linker {
  16         /**#@+
  17          * @private
  18          */
  19         var $mWatchLinkNum = 0; // Appended to end of watch link id's
  20         /**#@-*/
  21         protected $mRevisionId; // The revision ID we're looking at, null if not applicable.
  22         protected $skinname = 'standard' ;
  23
  24         /** Constructor, call parent constructor */
  25         function Skin() { parent::__construct(); }
  26
  27         /**
  28          * Fetch the set of available skins.
  29          * @return array of strings
  30          * @static
  31          */
  32         static function getSkinNames() {
  33                 global $wgValidSkinNames;
  34                 static $skinsInitialised = false;
  35                 if ( !$skinsInitialised ) {
  36                         # Get a list of available skins
  37                         # Build using the regular expression '^(.*).php$'
  38                         # Array keys are all lower case, array value keep the case used by filename
  39                         #
  40                         wfProfileIn( __METHOD__ . '-init' );
  41                         global $wgStyleDirectory;
  42                         $skinDir = dir( $wgStyleDirectory );
  43
  44                         # while code from www.php.net
  45                         while (false !== ($file = $skinDir->read())) {
  46                                 // Skip non-PHP files, hidden files, and '.dep' includes
  47                                 $matches = array();
  48                                 if(preg_match('/^([^.]*)\.php$/',$file, $matches)) {
  49                                         $aSkin = $matches[1];
  50                                         $wgValidSkinNames[strtolower($aSkin)] = $aSkin;
  51                                 }
  52                         }
  53                         $skinDir->close();
  54                         $skinsInitialised = true;
  55                         wfProfileOut( __METHOD__ . '-init' );
  56                 }
  57                 return $wgValidSkinNames;
  58         }
  59
  60         /**
  61          * Normalize a skin preference value to a form that can be loaded.
  62          * If a skin can't be found, it will fall back to the configured
  63          * default (or the old 'Classic' skin if that's broken).
  64          * @param string $key
  65          * @return string
  66          * @static
  67          */
  68         static function normalizeKey( $key ) {
  69                 global $wgDefaultSkin;
  70                 $skinNames = Skin::getSkinNames();
  71
  72                 if( $key == '' ) {
  73                         // Don't return the default immediately;
  74                         // in a misconfiguration we need to fall back.
  75                         $key = $wgDefaultSkin;
  76                 }
  77
  78                 if( isset( $skinNames[$key] ) ) {
  79                         return $key;
  80                 }
  81
  82                 // Older versions of the software used a numeric setting
  83                 // in the user preferences.
  84                 $fallback = array(
  85                         0 => $wgDefaultSkin,
  86                         1 => 'nostalgia',
  87                         2 => 'cologneblue' );
  88
  89                 if( isset( $fallback[$key] ) ){
  90                         $key = $fallback[$key];
  91                 }
  92
  93                 if( isset( $skinNames[$key] ) ) {
  94                         return $key;
  95                 } else {
  96                         return 'monobook';
  97                 }
  98         }
  99
 100         /**
 101          * Factory method for loading a skin of a given type
 102          * @param string $key 'monobook', 'standard', etc
 103          * @return Skin
 104          * @static
 105          */
 106         static function &newFromKey( $key ) {
 107                 global $wgStyleDirectory;
 108
 109                 $key = Skin::normalizeKey( $key );
 110
 111                 $skinNames = Skin::getSkinNames();
 112                 $skinName = $skinNames[$key];
 113                 $className = 'Skin'.ucfirst($key);
 114
 115                 # Grab the skin class and initialise it.
 116                 if ( !class_exists( $className ) ) {
 117                         // Preload base classes to work around APC/PHP5 bug
 118                         $deps = "{$wgStyleDirectory}/{$skinName}.deps.php";
 119                         if( file_exists( $deps ) ) include_once( $deps );
 120                         require_once( "{$wgStyleDirectory}/{$skinName}.php" );
 121
 122                         # Check if we got if not failback to default skin
 123                         if( !class_exists( $className ) ) {
 124                                 # DO NOT die if the class isn't found. This breaks maintenance
 125                                 # scripts and can cause a user account to be unrecoverable
 126                                 # except by SQL manipulation if a previously valid skin name
 127                                 # is no longer valid.
 128                                 wfDebug( "Skin class does not exist: $className\n" );
 129                                 $className = 'SkinMonobook';
 130                                 require_once( "{$wgStyleDirectory}/MonoBook.php" );
 131                         }
 132                 }
 133                 $skin = new $className;
 134                 return $skin;
 135         }
 136
 137         /** @return string path to the skin stylesheet */
 138         function getStylesheet() {
 139                 return 'common/wikistandard.css';
 140         }
 141
 142         /** @return string skin name */
 143         public function getSkinName() {
 144                 return $this->skinname;
 145         }
 146
 147         function qbSetting() {
 148                 global $wgOut, $wgUser;
 149
 150                 if ( $wgOut->isQuickbarSuppressed() ) { return 0; }
 151                 $q = $wgUser->getOption( 'quickbar', 0 );
 152                 return $q;
 153         }
 154
 155         function initPage( &$out ) {
 156                 global $wgFavicon, $wgScriptPath, $wgSitename, $wgContLang;
 157
 158                 wfProfileIn( __METHOD__ );
 159
 160                 if( false !== $wgFavicon ) {
 161                         $out->addLink( array( 'rel' => 'shortcut icon', 'href' => $wgFavicon ) );
 162                 }
 163
 164                 $code = $wgContLang->getCode();
 165                 $name = $wgContLang->getLanguageName( $code );
 166                 $langName = $name ? $name : $code;
 167
 168                 # OpenSearch description link
 169                 $out->addLink( array(
 170                         'rel' => 'search',
 171                         'type' => 'application/opensearchdescription+xml',
 172                         'href' => "$wgScriptPath/opensearch_desc.php",
 173                         'title' => "$wgSitename ($langName)",
 174                 ));
 175
 176                 $this->addMetadataLinks($out);
 177
 178                 $this->mRevisionId = $out->mRevisionId;
 179
 180                 $this->preloadExistence();
 181
 182                 wfProfileOut( __METHOD__ );
 183         }
 184
 185         /**
 186          * Preload the existence of three commonly-requested pages in a single query
 187          */
 188         function preloadExistence() {
 189                 global $wgUser, $wgTitle;
 190
 191                 // User/talk link
 192                 $titles = array( $wgUser->getUserPage(), $wgUser->getTalkPage() );
 193
 194                 // Other tab link
 195                 if ( $wgTitle->getNamespace() == NS_SPECIAL ) {
 196                         // nothing
 197                 } elseif ( $wgTitle->isTalkPage() ) {
 198                         $titles[] = $wgTitle->getSubjectPage();
 199                 } else {
 200                         $titles[] = $wgTitle->getTalkPage();
 201                 }
 202
 203                 $lb = new LinkBatch( $titles );
 204                 $lb->execute();
 205         }
 206
 207         function addMetadataLinks( &$out ) {
 208                 global $wgTitle, $wgEnableDublinCoreRdf, $wgEnableCreativeCommonsRdf;
 209                 global $wgRightsPage, $wgRightsUrl;
 210
 211                 if( $out->isArticleRelated() ) {
 212                         # note: buggy CC software only reads first "meta" link
 213                         if( $wgEnableCreativeCommonsRdf ) {
 214                                 $out->addMetadataLink( array(
 215                                         'title' => 'Creative Commons',
 216                                         'type' => 'application/rdf+xml',
 217                                         'href' => $wgTitle->getLocalURL( 'action=creativecommons') ) );
 218                         }
 219                         if( $wgEnableDublinCoreRdf ) {
 220                                 $out->addMetadataLink( array(
 221                                         'title' => 'Dublin Core',
 222                                         'type' => 'application/rdf+xml',
 223                                         'href' => $wgTitle->getLocalURL( 'action=dublincore' ) ) );
 224                         }
 225                 }
 226                 $copyright = '';
 227                 if( $wgRightsPage ) {
 228                         $copy = Title::newFromText( $wgRightsPage );
 229                         if( $copy ) {
 230                                 $copyright = $copy->getLocalURL();
 231                         }
 232                 }
 233                 if( !$copyright && $wgRightsUrl ) {
 234                         $copyright = $wgRightsUrl;
 235                 }
 236                 if( $copyright ) {
 237                         $out->addLink( array(
 238                                 'rel' => 'copyright',
 239                                 'href' => $copyright ) );
 240                 }
 241         }
 242
 243         function outputPage( &$out ) {
 244                 global $wgDebugComments;
 245
 246                 wfProfileIn( __METHOD__ );
 247                 $this->initPage( $out );
 248
 249                 $out->out( $out->headElement() );
 250
 251                 $out->out( "\n<body" );
 252                 $ops = $this->getBodyOptions();
 253                 foreach ( $ops as $name => $val ) {
 254                         $out->out( " $name='$val'" );
 255                 }
 256                 $out->out( ">\n" );
 257                 if ( $wgDebugComments ) {
 258                         $out->out( "<!-- Wiki debugging output:\n" .
 259                           $out->mDebugtext . "-->\n" );
 260                 }
 261
 262                 $out->out( $this->beforeContent() );
 263
 264                 $out->out( $out->mBodytext . "\n" );
 265
 266                 $out->out( $this->afterContent() );
 267
 268                 $out->out( $this->bottomScripts() );
 269
 270                 $out->out( $out->reportTime() );
 271
 272                 $out->out( "\n</body></html>" );
 273                 wfProfileOut( __METHOD__ );
 274         }
 275
 276         static function makeVariablesScript( $data ) {
 277                 global $wgJsMimeType;
 278
 279                 $r = "<script type= \"$wgJsMimeType\">/*<![CDATA[*/\n";
 280                 foreach ( $data as $name => $value ) {
 281                         $encValue = Xml::encodeJsVar( $value );
 282                         $r .= "var $name = $encValue;\n";
 283                 }
 284                 $r .= "/*]]>*/</script>\n";
 285
 286                 return $r;
 287         }
 288
 289         /**
 290          * Make a <script> tag containing global variables
 291          * @param array $data Associative array containing one element:
 292          *     skinname => the skin name
 293          * The odd calling convention is for backwards compatibility
 294          */
 295         static function makeGlobalVariablesScript( $data ) {
 296                 global $wgScript, $wgStylePath, $wgUser;
 297                 global $wgArticlePath, $wgScriptPath, $wgServer, $wgContLang, $wgLang;
 298                 global $wgTitle, $wgCanonicalNamespaceNames, $wgOut, $wgArticle;
 299                 global $wgBreakFrames, $wgRequest;
 300                 global $wgUseAjax, $wgAjaxWatch;
 301
 302                 $ns = $wgTitle->getNamespace();
 303                 $nsname = isset( $wgCanonicalNamespaceNames[ $ns ] ) ? $wgCanonicalNamespaceNames[ $ns ] : $wgTitle->getNsText();
 304
 305                 $vars = array(
 306                         'skin' => $data['skinname'],
 307                         'stylepath' => $wgStylePath,
 308                         'wgArticlePath' => $wgArticlePath,
 309                         'wgScriptPath' => $wgScriptPath,
 310                         'wgScript' => $wgScript,
 311                         'wgServer' => $wgServer,
 312                         'wgCanonicalNamespace' => $nsname,
 313                         'wgCanonicalSpecialPageName' => SpecialPage::resolveAlias( $wgTitle->getDBKey() ),
 314                         'wgNamespaceNumber' => $wgTitle->getNamespace(),
 315                         'wgPageName' => $wgTitle->getPrefixedDBKey(),
 316                         'wgTitle' => $wgTitle->getText(),
 317                         'wgAction' => $wgRequest->getText( 'action', 'view' ),
 318                         'wgRestrictionEdit' => $wgTitle->getRestrictions( 'edit' ),
 319                         'wgRestrictionMove' => $wgTitle->getRestrictions( 'move' ),
 320                         'wgArticleId' => $wgTitle->getArticleId(),
 321                         'wgIsArticle' => $wgOut->isArticle(),
 322                         'wgUserName' => $wgUser->isAnon() ? NULL : $wgUser->getName(),
 323                         'wgUserGroups' => $wgUser->isAnon() ? NULL : $wgUser->getEffectiveGroups(),
 324                         'wgUserLanguage' => $wgLang->getCode(),
 325                         'wgContentLanguage' => $wgContLang->getCode(),
 326                         'wgBreakFrames' => $wgBreakFrames,
 327                         'wgCurRevisionId' => isset( $wgArticle ) ? $wgArticle->getLatest() : 0,
 328                 );
 329
 330                 global $wgLivePreview;
 331                 if ( $wgLivePreview && $wgUser->getOption( 'uselivepreview' ) ) {
 332                         $vars['wgLivepreviewMessageLoading'] = wfMsg( 'livepreview-loading' );
 333                         $vars['wgLivepreviewMessageReady']   = wfMsg( 'livepreview-ready' );
 334                         $vars['wgLivepreviewMessageFailed']  = wfMsg( 'livepreview-failed' );
 335                         $vars['wgLivepreviewMessageError']   = wfMsg( 'livepreview-error' );
 336                 }
 337
 338                 if($wgUseAjax && $wgAjaxWatch && $wgUser->isLoggedIn() ) {
 339                         $msgs = (object)array();
 340                         foreach ( array( 'watch', 'unwatch', 'watching', 'unwatching' ) as $msgName ) {
 341                                 $msgs->{$msgName . 'Msg'} = wfMsg( $msgName );
 342                         }
 343                         $vars['wgAjaxWatch'] = $msgs;
 344                 }
 345
 346                 return self::makeVariablesScript( $vars );
 347         }
 348
 349         function getHeadScripts( $allowUserJs ) {
 350                 global $wgStylePath, $wgUser, $wgJsMimeType, $wgStyleVersion;
 351
 352                 $r = self::makeGlobalVariablesScript( array( 'skinname' => $this->getSkinName() ) );
 353
 354                 $r .= "<script type=\"{$wgJsMimeType}\" src=\"{$wgStylePath}/common/wikibits.js?$wgStyleVersion\"></script>\n";
 355                 global $wgUseSiteJs;
 356                 if ($wgUseSiteJs) {
 357                         $jsCache = $wgUser->isLoggedIn() ? '&smaxage=0' : '';
 358                         $r .= "<script type=\"$wgJsMimeType\" src=\"".
 359                                 htmlspecialchars(self::makeUrl('-',
 360                                         "action=raw$jsCache&gen=js&useskin=" .
 361                                         urlencode( $this->getSkinName() ) ) ) .
 362                                 "\"><!-- site js --></script>\n";
 363                 }
 364                 if( $allowUserJs && $wgUser->isLoggedIn() ) {
 365                         $userpage = $wgUser->getUserPage();
 366                         $userjs = htmlspecialchars( self::makeUrl(
 367                                 $userpage->getPrefixedText().'/'.$this->getSkinName().'.js',
 368                                 'action=raw&ctype='.$wgJsMimeType));
 369                         $r .= '<script type="'.$wgJsMimeType.'" src="'.$userjs."\"></script>\n";
 370                 }
 371                 return $r;
 372         }
 373
 374         /**
 375          * To make it harder for someone to slip a user a fake
 376          * user-JavaScript or user-CSS preview, a random token
 377          * is associated with the login session. If it's not
 378          * passed back with the preview request, we won't render
 379          * the code.
 380          *
 381          * @param string $action
 382          * @return bool
 383          * @private
 384          */
 385         function userCanPreview( $action ) {
 386                 global $wgTitle, $wgRequest, $wgUser;
 387
 388                 if( $action != 'submit' )
 389                         return false;
 390                 if( !$wgRequest->wasPosted() )
 391                         return false;
 392                 if( !$wgTitle->userCanEditCssJsSubpage() )
 393                         return false;
 394                 return $wgUser->matchEditToken(
 395                         $wgRequest->getVal( 'wpEditToken' ) );
 396         }
 397
 398         # get the user/site-specific stylesheet, SkinTemplate loads via RawPage.php (settings are cached that way)
 399         function getUserStylesheet() {
 400                 global $wgStylePath, $wgRequest, $wgContLang, $wgSquidMaxage, $wgStyleVersion;
 401                 $sheet = $this->getStylesheet();
 402                 $s = "@import \"$wgStylePath/common/shared.css?$wgStyleVersion\";\n";
 403                 $s .= "@import \"$wgStylePath/common/oldshared.css?$wgStyleVersion\";\n";
 404                 $s .= "@import \"$wgStylePath/$sheet?$wgStyleVersion\";\n";
 405                 if($wgContLang->isRTL()) $s .= "@import \"$wgStylePath/common/common_rtl.css?$wgStyleVersion\";\n";
 406
 407                 $query = "usemsgcache=yes&action=raw&ctype=text/css&smaxage=$wgSquidMaxage";
 408                 $s .= '@import "' . self::makeNSUrl( 'Common.css', $query, NS_MEDIAWIKI ) . "\";\n" .
 409                         '@import "' . self::makeNSUrl( ucfirst( $this->getSkinName() . '.css' ), $query, NS_MEDIAWIKI ) . "\";\n";
 410
 411                 $s .= $this->doGetUserStyles();
 412                 return $s."\n";
 413         }
 414
 415         /**
 416          * This returns MediaWiki:Common.js, and derived classes may add other JS.
 417          * Despite its name, it does *not* return any custom user JS from user
 418          * subpages.  The returned script is sitewide and publicly cacheable and
 419          * therefore must not include anything that varies according to user,
 420          * interface language, etc. (although it may vary by skin).  See
 421          * makeGlobalVariablesScript for things that can vary per page view and are
 422          * not cacheable.
 423          *
 424          * @return string Raw JavaScript to be returned
 425          */
 426         public function getUserJs() {
 427                 wfProfileIn( __METHOD__ );
 428
 429                 global $wgStylePath;
 430                 $s = "/* generated javascript */\n";
 431                 $s .= "var skin = '" . Xml::escapeJsString( $this->getSkinName() ) . "';\n";
 432                 $s .= "var stylepath = '" . Xml::escapeJsString( $wgStylePath ) . "';";
 433                 $s .= "\n\n/* MediaWiki:Common.js */\n";
 434                 $commonJs = wfMsgForContent('common.js');
 435                 if ( !wfEmptyMsg ( 'common.js', $commonJs ) ) {
 436                         $s .= $commonJs;
 437                 }
 438                 wfProfileOut( __METHOD__ );
 439                 return $s;
 440         }
 441
 442         /**
 443          * Return html code that include User stylesheets
 444          */
 445         function getUserStyles() {
 446                 $s = "<style type='text/css'>\n";
 447                 $s .= "/*/*/ /*<![CDATA[*/\n"; # <-- Hide the styles from Netscape 4 without hiding them from IE/Mac
 448                 $s .= $this->getUserStylesheet();
 449                 $s .= "/*]]>*/ /* */\n";
 450                 $s .= "</style>\n";
 451                 return $s;
 452         }
 453
 454         /**
 455          * Some styles that are set by user through the user settings interface.
 456          */
 457         function doGetUserStyles() {
 458                 global $wgUser, $wgUser, $wgRequest, $wgTitle, $wgAllowUserCss;
 459
 460                 $s = '';
 461
 462                 if( $wgAllowUserCss && $wgUser->isLoggedIn() ) { # logged in
 463                         if($wgTitle->isCssSubpage() && $this->userCanPreview( $wgRequest->getText( 'action' ) ) ) {
 464                                 $s .= $wgRequest->getText('wpTextbox1');
 465                         } else {
 466                                 $userpage = $wgUser->getUserPage();
 467                                 $s.= '@import "'.self::makeUrl(
 468                                         $userpage->getPrefixedText().'/'.$this->getSkinName().'.css',
 469                                         'action=raw&ctype=text/css').'";'."\n";
 470                         }
 471                 }
 472
 473                 return $s . $this->reallyDoGetUserStyles();
 474         }
 475
 476         function reallyDoGetUserStyles() {
 477                 global $wgUser;
 478                 $s = '';
 479                 if (($undopt = $wgUser->getOption("underline")) < 2) {
 480                         $underline = $undopt ? 'underline' : 'none';
 481                         $s .= "a { text-decoration: $underline; }\n";
 482                 }
 483                 if( $wgUser->getOption( 'highlightbroken' ) ) {
 484                         $s .= "a.new, #quickbar a.new { color: #CC2200; }\n";
 485                 } else {
 486                         $s .= <<<END
 487 a.new, #quickbar a.new,
 488 a.stub, #quickbar a.stub {
 489         color: inherit;
 490 }
 491 a.new:after, #quickbar a.new:after {
 492         content: "?";
 493         color: #CC2200;
 494 }
 495 a.stub:after, #quickbar a.stub:after {
 496         content: "!";
 497         color: #772233;
 498 }
 499 END;
 500                 }
 501                 if( $wgUser->getOption( 'justify' ) ) {
 502                         $s .= "#article, #bodyContent { text-align: justify; }\n";
 503                 }
 504                 if( !$wgUser->getOption( 'showtoc' ) ) {
 505                         $s .= "#toc { display: none; }\n";
 506                 }
 507                 if( !$wgUser->getOption( 'editsection' ) ) {
 508                         $s .= ".editsection { display: none; }\n";
 509                 }
 510                 return $s;
 511         }
 512
 513         function getBodyOptions() {
 514                 global $wgUser, $wgTitle, $wgOut, $wgRequest, $wgContLang;
 515
 516                 extract( $wgRequest->getValues( 'oldid', 'redirect', 'diff' ) );
 517
 518                 if ( 0 != $wgTitle->getNamespace() ) {
 519                         $a = array( 'bgcolor' => '#ffffec' );
 520                 }
 521                 else $a = array( 'bgcolor' => '#FFFFFF' );
 522                 if($wgOut->isArticle() && $wgUser->getOption('editondblclick') &&
 523                   $wgTitle->userCan( 'edit' ) ) {
 524                         $s = $wgTitle->getFullURL( $this->editUrlOptions() );
 525                         $s = 'document.location = "' .wfEscapeJSString( $s ) .'";';
 526                         $a += array ('ondblclick' => $s);
 527
 528                 }
 529                 $a['onload'] = $wgOut->getOnloadHandler();
 530                 if( $wgUser->getOption( 'editsectiononrightclick' ) ) {
 531                         if( $a['onload'] != '' ) {
 532                                 $a['onload'] .= ';';
 533                         }
 534                         $a['onload'] .= 'setupRightClickEdit()';
 535                 }
 536                 $a['class'] = 'ns-'.$wgTitle->getNamespace().' '.($wgContLang->isRTL() ? "rtl" : "ltr").
 537                 ' '.Sanitizer::escapeClass( 'page-'.$wgTitle->getPrefixedText() );
 538                 return $a;
 539         }
 540
 541         /**
 542          * URL to the logo
 543          */
 544         function getLogo() {
 545                 global $wgLogo;
 546                 return $wgLogo;
 547         }
 548
 549         /**
 550          * This will be called immediately after the <body> tag.  Split into
 551          * two functions to make it easier to subclass.
 552          */
 553         function beforeContent() {
 554                 return $this->doBeforeContent();
 555         }
 556
 557         function doBeforeContent() {
 558                 global $wgContLang;
 559                 $fname = 'Skin::doBeforeContent';
 560                 wfProfileIn( $fname );
 561
 562                 $s = '';
 563                 $qb = $this->qbSetting();
 564
 565                 if( $langlinks = $this->otherLanguages() ) {
 566                         $rows = 2;
 567                         $borderhack = '';
 568                 } else {
 569                         $rows = 1;
 570                         $langlinks = false;
 571                         $borderhack = 'class="top"';
 572                 }
 573
 574                 $s .= "\n<div id='content'>\n<div id='topbar'>\n" .
 575                   "<table border='0' cellspacing='0' width='98%'>\n<tr>\n";
 576
 577                 $shove = ($qb != 0);
 578                 $left = ($qb == 1 || $qb == 3);
 579                 if($wgContLang->isRTL()) $left = !$left;
 580
 581                 if ( !$shove ) {
 582                         $s .= "<td class='top' align='left' valign='top' rowspan='{$rows}'>\n" .
 583                           $this->logoText() . '</td>';
 584                 } elseif( $left ) {
 585                         $s .= $this->getQuickbarCompensator( $rows );
 586                 }
 587                 $l = $wgContLang->isRTL() ? 'right' : 'left';
 588                 $s .= "<td {$borderhack} align='$l' valign='top'>\n";
 589
 590                 $s .= $this->topLinks() ;
 591                 $s .= "<p class='subtitle'>" . $this->pageTitleLinks() . "</p>\n";
 592
 593                 $r = $wgContLang->isRTL() ? "left" : "right";
 594                 $s .= "</td>\n<td {$borderhack} valign='top' align='$r' nowrap='nowrap'>";
 595                 $s .= $this->nameAndLogin();
 596                 $s .= "\n<br />" . $this->searchForm() . "</td>";
 597
 598                 if ( $langlinks ) {
 599                         $s .= "</tr>\n<tr>\n<td class='top' colspan=\"2\">$langlinks</td>\n";
 600                 }
 601
 602                 if ( $shove && !$left ) { # Right
 603                         $s .= $this->getQuickbarCompensator( $rows );
 604                 }
 605                 $s .= "</tr>\n</table>\n</div>\n";
 606                 $s .= "\n<div id='article'>\n";
 607
 608                 $notice = wfGetSiteNotice();
 609                 if( $notice ) {
 610                         $s .= "\n<div id='siteNotice'>$notice</div>\n";
 611                 }
 612                 $s .= $this->pageTitle();
 613                 $s .= $this->pageSubtitle() ;
 614                 $s .= $this->getCategories();
 615                 wfProfileOut( $fname );
 616                 return $s;
 617         }
 618
 619
 620         function getCategoryLinks () {
 621                 global $wgOut, $wgTitle, $wgUseCategoryBrowser;
 622                 global $wgContLang;
 623
 624                 if( count( $wgOut->mCategoryLinks ) == 0 ) return '';
 625
 626                 # Separator
 627                 $sep = wfMsgHtml( 'catseparator' );
 628
 629                 // Use Unicode bidi embedding override characters,
 630                 // to make sure links don't smash each other up in ugly ways.
 631                 $dir = $wgContLang->isRTL() ? 'rtl' : 'ltr';
 632                 $embed = "<span dir='$dir'>";
 633                 $pop = '</span>';
 634                 $t = $embed . implode ( "{$pop} {$sep} {$embed}" , $wgOut->mCategoryLinks ) . $pop;
 635
 636                 $msg = wfMsgExt( 'pagecategories', array( 'parsemag', 'escape' ), count( $wgOut->mCategoryLinks ) );
 637                 $s = $this->makeLinkObj( Title::newFromText( wfMsgForContent('pagecategorieslink') ), $msg )
 638                         . ': ' . $t;
 639
 640                 # optional 'dmoz-like' category browser. Will be shown under the list
 641                 # of categories an article belong to
 642                 if($wgUseCategoryBrowser) {
 643                         $s .= '<br /><hr />';
 644
 645                         # get a big array of the parents tree
 646                         $parenttree = $wgTitle->getParentCategoryTree();
 647                         # Skin object passed by reference cause it can not be
 648                         # accessed under the method subfunction drawCategoryBrowser
 649                         $tempout = explode("\n", Skin::drawCategoryBrowser($parenttree, $this) );
 650                         # Clean out bogus first entry and sort them
 651                         unset($tempout[0]);
 652                         asort($tempout);
 653                         # Output one per line
 654                         $s .= implode("<br />\n", $tempout);
 655                 }
 656
 657                 return $s;
 658         }
 659
 660         /** Render the array as a serie of links.
 661          * @param $tree Array: categories tree returned by Title::getParentCategoryTree
 662          * @param &skin Object: skin passed by reference
 663          * @return String separated by &gt;, terminate with "\n"
 664          */
 665         function drawCategoryBrowser($tree, &$skin) {
 666                 $return = '';
 667                 foreach ($tree as $element => $parent) {
 668                         if (empty($parent)) {
 669                                 # element start a new list
 670                                 $return .= "\n";
 671                         } else {
 672                                 # grab the others elements
 673                                 $return .= Skin::drawCategoryBrowser($parent, $skin) . ' &gt; ';
 674                         }
 675                         # add our current element to the list
 676                         $eltitle = Title::NewFromText($element);
 677                         $return .=  $skin->makeLinkObj( $eltitle, $eltitle->getText() ) ;
 678                 }
 679                 return $return;
 680         }
 681
 682         function getCategories() {
 683                 $catlinks=$this->getCategoryLinks();
 684                 if(!empty($catlinks)) {
 685                         return "<p class='catlinks'>{$catlinks}</p>";
 686                 }
 687         }
 688
 689         function getQuickbarCompensator( $rows = 1 ) {
 690                 return "<td width='152' rowspan='{$rows}'>&nbsp;</td>";
 691         }
 692
 693         /**
 694          * This gets called shortly before the \</body\> tag.
 695          * @return String HTML to be put before \</body\>
 696          */
 697         function afterContent() {
 698                 $printfooter = "<div class=\"printfooter\">\n" . $this->printFooter() . "</div>\n";
 699                 return $printfooter . $this->doAfterContent();
 700         }
 701
 702         /**
 703          * This gets called shortly before the \</body\> tag.
 704          * @return String HTML-wrapped JS code to be put before \</body\>
 705          */
 706         function bottomScripts() {
 707                 global $wgJsMimeType;
 708                 $bottomScriptText = "\n\t\t<script type=\"$wgJsMimeType\">if (window.runOnloadHook) runOnloadHook();</script>\n";
 709                 wfRunHooks( 'SkinAfterBottomScripts', array( $this, &$bottomScriptText ) );
 710                 return $bottomScriptText;
 711         }
 712
 713         /** @return string Retrievied from HTML text */
 714         function printSource() {
 715                 global $wgTitle;
 716                 $url = htmlspecialchars( $wgTitle->getFullURL() );
 717                 return wfMsg( 'retrievedfrom', '<a href="'.$url.'">'.$url.'</a>' );
 718         }
 719
 720         function printFooter() {
 721                 return "<p>" .  $this->printSource() .
 722                         "</p>\n\n<p>" . $this->pageStats() . "</p>\n";
 723         }
 724
 725         /** overloaded by derived classes */
 726         function doAfterContent() { }
 727
 728         function pageTitleLinks() {
 729                 global $wgOut, $wgTitle, $wgUser, $wgRequest;
 730
 731                 $oldid = $wgRequest->getVal( 'oldid' );
 732                 $diff = $wgRequest->getVal( 'diff' );
 733                 $action = $wgRequest->getText( 'action' );
 734
 735                 $s = $this->printableLink();
 736                 $disclaimer = $this->disclaimerLink(); # may be empty
 737                 if( $disclaimer ) {
 738                         $s .= ' | ' . $disclaimer;
 739                 }
 740                 $privacy = $this->privacyLink(); # may be empty too
 741                 if( $privacy ) {
 742                         $s .= ' | ' . $privacy;
 743                 }
 744
 745                 if ( $wgOut->isArticleRelated() ) {
 746                         if ( $wgTitle->getNamespace() == NS_IMAGE ) {
 747                                 $name = $wgTitle->getDBkey();
 748                                 $image = wfFindFile( $wgTitle );
 749                                 if( $image ) {
 750                                         $link = htmlspecialchars( $image->getURL() );
 751                                         $style = $this->getInternalLinkAttributes( $link, $name );
 752                                         $s .= " | <a href=\"{$link}\"{$style}>{$name}</a>";
 753                                 }
 754                         }
 755                 }
 756                 if ( 'history' == $action || isset( $diff ) || isset( $oldid ) ) {
 757                         $s .= ' | ' . $this->makeKnownLinkObj( $wgTitle,
 758                                         wfMsg( 'currentrev' ) );
 759                 }
 760
 761                 if ( $wgUser->getNewtalk() ) {
 762                         # do not show "You have new messages" text when we are viewing our
 763                         # own talk page
 764                         if( !$wgTitle->equals( $wgUser->getTalkPage() ) ) {
 765                                 $tl = $this->makeKnownLinkObj( $wgUser->getTalkPage(), wfMsgHtml( 'newmessageslink' ), 'redirect=no' );
 766                                 $dl = $this->makeKnownLinkObj( $wgUser->getTalkPage(), wfMsgHtml( 'newmessagesdifflink' ), 'diff=cur' );
 767                                 $s.= ' | <strong>'. wfMsg( 'youhavenewmessages', $tl, $dl ) . '</strong>';
 768                                 # disable caching
 769                                 $wgOut->setSquidMaxage(0);
 770                                 $wgOut->enableClientCache(false);
 771                         }
 772                 }
 773
 774                 $undelete = $this->getUndeleteLink();
 775                 if( !empty( $undelete ) ) {
 776                         $s .= ' | '.$undelete;
 777                 }
 778                 return $s;
 779         }
 780
 781         function getUndeleteLink() {
 782                 global $wgUser, $wgTitle, $wgContLang, $wgLang, $action;
 783                 if(     $wgUser->isAllowed( 'deletedhistory' ) &&
 784                         (($wgTitle->getArticleId() == 0) || ($action == "history")) &&
 785                         ($n = $wgTitle->isDeleted() ) )
 786                 {
 787                         if ( $wgUser->isAllowed( 'undelete' ) ) {
 788                                 $msg = 'thisisdeleted';
 789                         } else {
 790                                 $msg = 'viewdeleted';
 791                         }
 792                         return wfMsg( $msg,
 793                                 $this->makeKnownLinkObj(
 794                                         SpecialPage::getTitleFor( 'Undelete', $wgTitle->getPrefixedDBkey() ),
 795                                         wfMsgExt( 'restorelink', array( 'parsemag', 'escape' ), $wgLang->formatNum( $n ) ) ) );
 796                 }
 797                 return '';
 798         }
 799
 800         function printableLink() {
 801                 global $wgOut, $wgFeedClasses, $wgRequest;
 802
 803                 $printurl = $wgRequest->escapeAppendQuery( 'printable=yes' );
 804
 805                 $s = "<a href=\"$printurl\">" . wfMsg( 'printableversion' ) . '</a>';
 806                 if( $wgOut->isSyndicated() ) {
 807                         foreach( $wgFeedClasses as $format => $class ) {
 808                                 $feedurl = $wgRequest->escapeAppendQuery( "feed=$format" );
 809                                 $s .= " | <a href=\"$feedurl\">{$format}</a>";
 810                         }
 811                 }
 812                 return $s;
 813         }
 814
 815         function pageTitle() {
 816                 global $wgOut;
 817                 $s = '<h1 class="pagetitle">' . htmlspecialchars( $wgOut->getPageTitle() ) . '</h1>';
 818                 return $s;
 819         }
 820
 821         function pageSubtitle() {
 822                 global $wgOut;
 823
 824                 $sub = $wgOut->getSubtitle();
 825                 if ( '' == $sub ) {
 826                         global $wgExtraSubtitle;
 827                         $sub = wfMsg( 'tagline' ) . $wgExtraSubtitle;
 828                 }
 829                 $subpages = $this->subPageSubtitle();
 830                 $sub .= !empty($subpages)?"</p><p class='subpages'>$subpages":'';
 831                 $s = "<p class='subtitle'>{$sub}</p>\n";
 832                 return $s;
 833         }
 834
 835         function subPageSubtitle() {
 836                 global $wgOut,$wgTitle,$wgNamespacesWithSubpages;
 837                 $subpages = '';
 838                 if($wgOut->isArticle() && !empty($wgNamespacesWithSubpages[$wgTitle->getNamespace()])) {
 839                         $ptext=$wgTitle->getPrefixedText();
 840                         if(preg_match('/\//',$ptext)) {
 841                                 $links = explode('/',$ptext);
 842                                 $c = 0;
 843                                 $growinglink = '';
 844                                 foreach($links as $link) {
 845                                         $c++;
 846                                         if ($c<count($links)) {
 847                                                 $growinglink .= $link;
 848                                                 $getlink = $this->makeLink( $growinglink, htmlspecialchars( $link ) );
 849                                                 if(preg_match('/class="new"/i',$getlink)) { break; } # this is a hack, but it saves time
 850                                                 if ($c>1) {
 851                                                         $subpages .= ' | ';
 852                                                 } else  {
 853                                                         $subpages .= '&lt; ';
 854                                                 }
 855                                                 $subpages .= $getlink;
 856                                                 $growinglink .= '/';
 857                                         }
 858                                 }
 859                         }
 860                 }
 861                 return $subpages;
 862         }
 863
 864         /**
 865          * Returns true if the IP should be shown in the header
 866          */
 867         function showIPinHeader() {
 868                 global $wgShowIPinHeader;
 869                 return $wgShowIPinHeader && session_id() != '';
 870         }
 871
 872         function nameAndLogin() {
 873                 global $wgUser, $wgTitle, $wgLang, $wgContLang;
 874
 875                 $lo = $wgContLang->specialPage( 'Userlogout' );
 876
 877                 $s = '';
 878                 if ( $wgUser->isAnon() ) {
 879                         if( $this->showIPinHeader() ) {
 880                                 $n = wfGetIP();
 881
 882                                 $tl = $this->makeKnownLinkObj( $wgUser->getTalkPage(),
 883                                   $wgLang->getNsText( NS_TALK ) );
 884
 885                                 $s .= $n . ' ('.$tl.')';
 886                         } else {
 887                                 $s .= wfMsg('notloggedin');
 888                         }
 889
 890                         $rt = $wgTitle->getPrefixedURL();
 891                         if ( 0 == strcasecmp( urlencode( $lo ), $rt ) ) {
 892                                 $q = '';
 893                         } else { $q = "returnto={$rt}"; }
 894
 895                         $s .= "\n<br />" . $this->makeKnownLinkObj(
 896                                 SpecialPage::getTitleFor( 'Userlogin' ),
 897                                 wfMsg( 'login' ), $q );
 898                 } else {
 899                         $n = $wgUser->getName();
 900                         $rt = $wgTitle->getPrefixedURL();
 901                         $tl = $this->makeKnownLinkObj( $wgUser->getTalkPage(),
 902                           $wgLang->getNsText( NS_TALK ) );
 903
 904                         $tl = " ({$tl})";
 905
 906                         $s .= $this->makeKnownLinkObj( $wgUser->getUserPage(),
 907                           $n ) . "{$tl}<br />" .
 908                           $this->makeKnownLinkObj( SpecialPage::getTitleFor( 'Userlogout' ), wfMsg( 'logout' ),
 909                           "returnto={$rt}" ) . ' | ' .
 910                           $this->specialLink( 'preferences' );
 911                 }
 912                 $s .= ' | ' . $this->makeKnownLink( wfMsgForContent( 'helppage' ),
 913                   wfMsg( 'help' ) );
 914
 915                 return $s;
 916         }
 917
 918         function getSearchLink() {
 919                 $searchPage = SpecialPage::getTitleFor( 'Search' );
 920                 return $searchPage->getLocalURL();
 921         }
 922
 923         function escapeSearchLink() {
 924                 return htmlspecialchars( $this->getSearchLink() );
 925         }
 926
 927         function searchForm() {
 928                 global $wgRequest;
 929                 $search = $wgRequest->getText( 'search' );
 930
 931                 $s = '<form name="search" class="inline" method="post" action="'
 932                   . $this->escapeSearchLink() . "\">\n"
 933                   . '<input type="text" name="search" size="19" value="'
 934                   . htmlspecialchars(substr($search,0,256)) . "\" />\n"
 935                   . '<input type="submit" name="go" value="' . wfMsg ('searcharticle') . '" />&nbsp;'
 936                   . '<input type="submit" name="fulltext" value="' . wfMsg ('searchbutton') . "\" />\n</form>";
 937
 938                 return $s;
 939         }
 940
 941         function topLinks() {
 942                 global $wgOut;
 943                 $sep = " |\n";
 944
 945                 $s = $this->mainPageLink() . $sep
 946                   . $this->specialLink( 'recentchanges' );
 947
 948                 if ( $wgOut->isArticleRelated() ) {
 949                         $s .=  $sep . $this->editThisPage()
 950                           . $sep . $this->historyLink();
 951                 }
 952                 # Many people don't like this dropdown box
 953                 #$s .= $sep . $this->specialPagesList();
 954
 955                 $s .= $this->variantLinks();
 956
 957                 $s .= $this->extensionTabLinks();
 958
 959                 return $s;
 960         }
 961
 962         /**
 963          * Compatibility for extensions adding functionality through tabs.
 964          * Eventually these old skins should be replaced with SkinTemplate-based
 965          * versions, sigh...
 966          * @return string
 967          */
 968         function extensionTabLinks() {
 969                 $tabs = array();
 970                 $s = '';
 971                 wfRunHooks( 'SkinTemplateTabs', array( $this, &$tabs ) );
 972                 foreach( $tabs as $tab ) {
 973                         $s .= ' | ' . Xml::element( 'a',
 974                                 array( 'href' => $tab['href'] ),
 975                                 $tab['text'] );
 976                 }
 977                 return $s;
 978         }
 979
 980         /**
 981          * Language/charset variant links for classic-style skins
 982          * @return string
 983          */
 984         function variantLinks() {
 985                 $s = '';
 986                 /* show links to different language variants */
 987                 global $wgDisableLangConversion, $wgContLang, $wgTitle;
 988                 $variants = $wgContLang->getVariants();
 989                 if( !$wgDisableLangConversion && sizeof( $variants ) > 1 ) {
 990                         foreach( $variants as $code ) {
 991                                 $varname = $wgContLang->getVariantname( $code );
 992                                 if( $varname == 'disable' )
 993                                         continue;
 994                                 $s .= ' | <a href="' . $wgTitle->escapeLocalUrl( 'variant=' . $code ) . '">' . htmlspecialchars( $varname ) . '</a>';
 995                         }
 996                 }
 997                 return $s;
 998         }
 999
1000         function bottomLinks() {
1001                 global $wgOut, $wgUser, $wgTitle, $wgUseTrackbacks;
1002                 $sep = " |\n";
1003
1004                 $s = '';
1005                 if ( $wgOut->isArticleRelated() ) {
1006                         $s .= '<strong>' . $this->editThisPage() . '</strong>';
1007                         if ( $wgUser->isLoggedIn() ) {
1008                                 $s .= $sep . $this->watchThisPage();
1009                         }
1010                         $s .= $sep . $this->talkLink()
1011                           . $sep . $this->historyLink()
1012                           . $sep . $this->whatLinksHere()
1013                           . $sep . $this->watchPageLinksLink();
1014
1015                         if ($wgUseTrackbacks)
1016                                 $s .= $sep . $this->trackbackLink();
1017
1018                         if ( $wgTitle->getNamespace() == NS_USER
1019                             || $wgTitle->getNamespace() == NS_USER_TALK )
1020
1021                         {
1022                                 $id=User::idFromName($wgTitle->getText());
1023                                 $ip=User::isIP($wgTitle->getText());
1024
1025                                 if($id || $ip) { # both anons and non-anons have contri list
1026                                         $s .= $sep . $this->userContribsLink();
1027                                 }
1028                                 if( $this->showEmailUser( $id ) ) {
1029                                         $s .= $sep . $this->emailUserLink();
1030                                 }
1031                         }
1032                         if ( $wgTitle->getArticleId() ) {
1033                                 $s .= "\n<br />";
1034                                 if($wgUser->isAllowed('delete')) { $s .= $this->deleteThisPage(); }
1035                                 if($wgUser->isAllowed('protect')) { $s .= $sep . $this->protectThisPage(); }
1036                                 if($wgUser->isAllowed('move')) { $s .= $sep . $this->moveThisPage(); }
1037                         }
1038                         $s .= "<br />\n" . $this->otherLanguages();
1039                 }
1040                 return $s;
1041         }
1042
1043         function pageStats() {
1044                 global $wgOut, $wgLang, $wgArticle, $wgRequest, $wgUser;
1045                 global $wgDisableCounters, $wgMaxCredits, $wgShowCreditsIfMax, $wgTitle, $wgPageShowWatchingUsers;
1046
1047                 $oldid = $wgRequest->getVal( 'oldid' );
1048                 $diff = $wgRequest->getVal( 'diff' );
1049                 if ( ! $wgOut->isArticle() ) { return ''; }
1050                 if ( isset( $oldid ) || isset( $diff ) ) { return ''; }
1051                 if ( 0 == $wgArticle->getID() ) { return ''; }
1052
1053                 $s = '';
1054                 if ( !$wgDisableCounters ) {
1055                         $count = $wgLang->formatNum( $wgArticle->getCount() );
1056                         if ( $count ) {
1057                                 $s = wfMsgExt( 'viewcount', array( 'parseinline' ), $count );
1058                         }
1059                 }
1060
1061                 if (isset($wgMaxCredits) && $wgMaxCredits != 0) {
1062                     require_once('Credits.php');
1063                     $s .= ' ' . getCredits($wgArticle, $wgMaxCredits, $wgShowCreditsIfMax);
1064                 } else {
1065                     $s .= $this->lastModified();
1066                 }
1067
1068                 if ($wgPageShowWatchingUsers && $wgUser->getOption( 'shownumberswatching' )) {
1069                         $dbr = wfGetDB( DB_SLAVE );
1070                         $watchlist = $dbr->tableName( 'watchlist' );
1071                         $sql = "SELECT COUNT(*) AS n FROM $watchlist
1072                                 WHERE wl_title='" . $dbr->strencode($wgTitle->getDBKey()) .
1073                                 "' AND  wl_namespace=" . $wgTitle->getNamespace() ;
1074                         $res = $dbr->query( $sql, 'Skin::pageStats');
1075                         $x = $dbr->fetchObject( $res );
1076
1077                         $s .= ' ' . wfMsgExt( 'number_of_watching_users_pageview',
1078                                 array( 'parseinline' ), $wgLang->formatNum($x->n)
1079                         );
1080                 }
1081
1082                 return $s . ' ' .  $this->getCopyright();
1083         }
1084
1085         function getCopyright( $type = 'detect' ) {
1086                 global $wgRightsPage, $wgRightsUrl, $wgRightsText, $wgRequest;
1087
1088                 if ( $type == 'detect' ) {
1089                         $oldid = $wgRequest->getVal( 'oldid' );
1090                         $diff = $wgRequest->getVal( 'diff' );
1091
1092                         if ( !is_null( $oldid ) && is_null( $diff ) && wfMsgForContent( 'history_copyright' ) !== '-' ) {
1093                                 $type = 'history';
1094                         } else {
1095                                 $type = 'normal';
1096                         }
1097                 }
1098
1099                 if ( $type == 'history' ) {
1100                         $msg = 'history_copyright';
1101                 } else {
1102                         $msg = 'copyright';
1103                 }
1104
1105                 $out = '';
1106                 if( $wgRightsPage ) {
1107                         $link = $this->makeKnownLink( $wgRightsPage, $wgRightsText );
1108                 } elseif( $wgRightsUrl ) {
1109                         $link = $this->makeExternalLink( $wgRightsUrl, $wgRightsText );
1110                 } else {
1111                         # Give up now
1112                         return $out;
1113                 }
1114                 $out .= wfMsgForContent( $msg, $link );
1115                 return $out;
1116         }
1117
1118         function getCopyrightIcon() {
1119                 global $wgRightsUrl, $wgRightsText, $wgRightsIcon, $wgCopyrightIcon;
1120                 $out = '';
1121                 if ( isset( $wgCopyrightIcon ) && $wgCopyrightIcon ) {
1122                         $out = $wgCopyrightIcon;
1123                 } else if ( $wgRightsIcon ) {
1124                         $icon = htmlspecialchars( $wgRightsIcon );
1125                         if ( $wgRightsUrl ) {
1126                                 $url = htmlspecialchars( $wgRightsUrl );
1127                                 $out .= '<a href="'.$url.'">';
1128                         }
1129                         $text = htmlspecialchars( $wgRightsText );
1130                         $out .= "<img src=\"$icon\" alt='$text' />";
1131                         if ( $wgRightsUrl ) {
1132                                 $out .= '</a>';
1133                         }
1134                 }
1135                 return $out;
1136         }
1137
1138         function getPoweredBy() {
1139                 global $wgStylePath;
1140                 $url = htmlspecialchars( "$wgStylePath/common/images/poweredby_mediawiki_88x31.png" );
1141                 $img = '<a href="http://www.mediawiki.org/"><img src="'.$url.'" alt="Powered by MediaWiki" /></a>';
1142                 return $img;
1143         }
1144
1145         function lastModified() {
1146                 global $wgLang, $wgArticle, $wgLoadBalancer;
1147
1148                 $timestamp = $wgArticle->getTimestamp();
1149                 if ( $timestamp ) {
1150                         $d = $wgLang->date( $timestamp, true );
1151                         $t = $wgLang->time( $timestamp, true );
1152                         $s = ' ' . wfMsg( 'lastmodifiedat', $d, $t );
1153                 } else {
1154                         $s = '';
1155                 }
1156                 if ( $wgLoadBalancer->getLaggedSlaveMode() ) {
1157                         $s .= ' <strong>' . wfMsg( 'laggedslavemode' ) . '</strong>';
1158                 }
1159                 return $s;
1160         }
1161
1162         function logoText( $align = '' ) {
1163                 if ( '' != $align ) { $a = " align='{$align}'"; }
1164                 else { $a = ''; }
1165
1166                 $mp = wfMsg( 'mainpage' );
1167                 $mptitle = Title::newMainPage();
1168                 $url = ( is_object($mptitle) ? $mptitle->escapeLocalURL() : '' );
1169
1170                 $logourl = $this->getLogo();
1171                 $s = "<a href='{$url}'><img{$a} src='{$logourl}' alt='[{$mp}]' /></a>";
1172                 return $s;
1173         }
1174
1175         /**
1176          * show a drop-down box of special pages
1177          */
1178         function specialPagesList() {
1179                 global $wgUser, $wgContLang, $wgServer, $wgRedirectScript;
1180                 $pages = array_merge( SpecialPage::getRegularPages(), SpecialPage::getRestrictedPages() );
1181                 foreach ( $pages as $name => $page ) {
1182                         $pages[$name] = $page->getDescription();
1183                 }
1184
1185                 $go = wfMsg( 'go' );
1186                 $sp = wfMsg( 'specialpages' );
1187                 $spp = $wgContLang->specialPage( 'Specialpages' );
1188
1189                 $s = '<form id="specialpages" method="get" class="inline" ' .
1190                   'action="' . htmlspecialchars( "{$wgServer}{$wgRedirectScript}" ) . "\">\n";
1191                 $s .= "<select name=\"wpDropdown\">\n";
1192                 $s .= "<option value=\"{$spp}\">{$sp}</option>\n";
1193
1194
1195                 foreach ( $pages as $name => $desc ) {
1196                         $p = $wgContLang->specialPage( $name );
1197                         $s .= "<option value=\"{$p}\">{$desc}</option>\n";
1198                 }
1199                 $s .= "</select>\n";
1200                 $s .= "<input type='submit' value=\"{$go}\" name='redirect' />\n";
1201                 $s .= "</form>\n";
1202                 return $s;
1203         }
1204
1205         function mainPageLink() {
1206                 $s = $this->makeKnownLinkObj( Title::newMainPage(), wfMsg( 'mainpage' ) );
1207                 return $s;
1208         }
1209
1210         function copyrightLink() {
1211                 $s = $this->makeKnownLink( wfMsgForContent( 'copyrightpage' ),
1212                   wfMsg( 'copyrightpagename' ) );
1213                 return $s;
1214         }
1215
1216         private function footerLink ( $desc, $page ) {
1217                 // if the link description has been set to "-" in the default language,
1218                 if ( wfMsgForContent( $desc )  == '-') {
1219                         // then it is disabled, for all languages.
1220                         return '';
1221                 } else {
1222                         // Otherwise, we display the link for the user, described in their
1223                         // language (which may or may not be the same as the default language),
1224                         // but we make the link target be the one site-wide page.
1225                         return $this->makeKnownLink( wfMsgForContent( $page ),
1226                                 wfMsgExt( $desc, array( 'parsemag', 'escapenoentities' ) ) );
1227                 }
1228         }
1229
1230         function privacyLink() {
1231                 return $this->footerLink( 'privacy', 'privacypage' );
1232         }
1233
1234         function aboutLink() {
1235                 return $this->footerLink( 'aboutsite', 'aboutpage' );
1236         }
1237
1238         function disclaimerLink() {
1239                 return $this->footerLink( 'disclaimers', 'disclaimerpage' );
1240         }
1241
1242         function editThisPage() {
1243                 global $wgOut, $wgTitle;
1244
1245                 if ( ! $wgOut->isArticleRelated() ) {
1246                         $s = wfMsg( 'protectedpage' );
1247                 } else {
1248                         if ( $wgTitle->userCan( 'edit' ) ) {
1249                                 $t = wfMsg( 'editthispage' );
1250                         } else {
1251                                 $t = wfMsg( 'viewsource' );
1252                         }
1253
1254                         $s = $this->makeKnownLinkObj( $wgTitle, $t, $this->editUrlOptions() );
1255                 }
1256                 return $s;
1257         }
1258
1259         /**
1260          * Return URL options for the 'edit page' link.
1261          * This may include an 'oldid' specifier, if the current page view is such.
1262          *
1263          * @return string
1264          * @private
1265          */
1266         function editUrlOptions() {
1267                 global $wgArticle;
1268
1269                 if( $this->mRevisionId && ! $wgArticle->isCurrent() ) {
1270                         return "action=edit&oldid=" . intval( $this->mRevisionId );
1271                 } else {
1272                         return "action=edit";
1273                 }
1274         }
1275
1276         function deleteThisPage() {
1277                 global $wgUser, $wgTitle, $wgRequest;
1278
1279                 $diff = $wgRequest->getVal( 'diff' );
1280                 if ( $wgTitle->getArticleId() && ( ! $diff ) && $wgUser->isAllowed('delete') ) {
1281                         $t = wfMsg( 'deletethispage' );
1282
1283                         $s = $this->makeKnownLinkObj( $wgTitle, $t, 'action=delete' );
1284                 } else {
1285                         $s = '';
1286                 }
1287                 return $s;
1288         }
1289
1290         function protectThisPage() {
1291                 global $wgUser, $wgTitle, $wgRequest;
1292
1293                 $diff = $wgRequest->getVal( 'diff' );
1294                 if ( $wgTitle->getArticleId() && ( ! $diff ) && $wgUser->isAllowed('protect') ) {
1295                         if ( $wgTitle->isProtected() ) {
1296                                 $t = wfMsg( 'unprotectthispage' );
1297                                 $q = 'action=unprotect';
1298                         } else {
1299                                 $t = wfMsg( 'protectthispage' );
1300                                 $q = 'action=protect';
1301                         }
1302                         $s = $this->makeKnownLinkObj( $wgTitle, $t, $q );
1303                 } else {
1304                         $s = '';
1305                 }
1306                 return $s;
1307         }
1308
1309         function watchThisPage() {
1310                 global $wgOut, $wgTitle;
1311                 ++$this->mWatchLinkNum;
1312
1313                 if ( $wgOut->isArticleRelated() ) {
1314                         if ( $wgTitle->userIsWatching() ) {
1315                                 $t = wfMsg( 'unwatchthispage' );
1316                                 $q = 'action=unwatch';
1317                                 $id = "mw-unwatch-link".$this->mWatchLinkNum;
1318                         } else {
1319                                 $t = wfMsg( 'watchthispage' );
1320                                 $q = 'action=watch';
1321                                 $id = 'mw-watch-link'.$this->mWatchLinkNum;
1322                         }
1323                         $s = $this->makeKnownLinkObj( $wgTitle, $t, $q, '', '', " id=\"$id\"" );
1324                 } else {
1325                         $s = wfMsg( 'notanarticle' );
1326                 }
1327                 return $s;
1328         }
1329
1330         function moveThisPage() {
1331                 global $wgTitle;
1332
1333                 if ( $wgTitle->userCan( 'move' ) ) {
1334                         return $this->makeKnownLinkObj( SpecialPage::getTitleFor( 'Movepage' ),
1335                           wfMsg( 'movethispage' ), 'target=' . $wgTitle->getPrefixedURL() );
1336                 } else {
1337                         // no message if page is protected - would be redundant
1338                         return '';
1339                 }
1340         }
1341
1342         function historyLink() {
1343                 global $wgTitle;
1344
1345                 return $this->makeKnownLinkObj( $wgTitle,
1346                   wfMsg( 'history' ), 'action=history' );
1347         }
1348
1349         function whatLinksHere() {
1350                 global $wgTitle;
1351
1352                 return $this->makeKnownLinkObj(
1353                         SpecialPage::getTitleFor( 'Whatlinkshere', $wgTitle->getPrefixedDBkey() ),
1354                         wfMsg( 'whatlinkshere' ) );
1355         }
1356
1357         function userContribsLink() {
1358                 global $wgTitle;
1359
1360                 return $this->makeKnownLinkObj(
1361                         SpecialPage::getTitleFor( 'Contributions', $wgTitle->getDBkey() ),
1362                         wfMsg( 'contributions' ) );
1363         }
1364
1365         function showEmailUser( $id ) {
1366                 global $wgEnableEmail, $wgEnableUserEmail, $wgUser;
1367                 return $wgEnableEmail &&
1368                        $wgEnableUserEmail &&
1369                        $wgUser->isLoggedIn() && # show only to signed in users
1370                        0 != $id; # we can only email to non-anons ..
1371 #                      '' != $id->getEmail() && # who must have an email address stored ..
1372 #                      0 != $id->getEmailauthenticationtimestamp() && # .. which is authenticated
1373 #                      1 != $wgUser->getOption('disablemail'); # and not disabled
1374         }
1375
1376         function emailUserLink() {
1377                 global $wgTitle;
1378
1379                 return $this->makeKnownLinkObj(
1380                         SpecialPage::getTitleFor( 'Emailuser', $wgTitle->getDBkey() ),
1381                         wfMsg( 'emailuser' ) );
1382         }
1383
1384         function watchPageLinksLink() {
1385                 global $wgOut, $wgTitle;
1386
1387                 if ( ! $wgOut->isArticleRelated() ) {
1388                         return '(' . wfMsg( 'notanarticle' ) . ')';
1389                 } else {
1390                         return $this->makeKnownLinkObj(
1391                                 SpecialPage::getTitleFor( 'Recentchangeslinked', $wgTitle->getPrefixedDBkey() ),
1392                                 wfMsg( 'recentchangeslinked' ) );
1393                 }
1394         }
1395
1396         function trackbackLink() {
1397                 global $wgTitle;
1398
1399                 return "<a href=\"" . $wgTitle->trackbackURL() . "\">"
1400                         . wfMsg('trackbacklink') . "</a>";
1401         }
1402
1403         function otherLanguages() {
1404                 global $wgOut, $wgContLang, $wgHideInterlanguageLinks;
1405
1406                 if ( $wgHideInterlanguageLinks ) {
1407                         return '';
1408                 }
1409
1410                 $a = $wgOut->getLanguageLinks();
1411                 if ( 0 == count( $a ) ) {
1412                         return '';
1413                 }
1414
1415                 $s = wfMsg( 'otherlanguages' ) . ': ';
1416                 $first = true;
1417                 if($wgContLang->isRTL()) $s .= '<span dir="LTR">';
1418                 foreach( $a as $l ) {
1419                         if ( ! $first ) { $s .= ' | '; }
1420                         $first = false;
1421
1422                         $nt = Title::newFromText( $l );
1423                         $url = $nt->escapeFullURL();
1424                         $text = $wgContLang->getLanguageName( $nt->getInterwiki() );
1425
1426                         if ( '' == $text ) { $text = $l; }
1427                         $style = $this->getExternalLinkAttributes( $l, $text );
1428                         $s .= "<a href=\"{$url}\"{$style}>{$text}</a>";
1429                 }
1430                 if($wgContLang->isRTL()) $s .= '</span>';
1431                 return $s;
1432         }
1433
1434         function bugReportsLink() {
1435                 $s = $this->makeKnownLink( wfMsgForContent( 'bugreportspage' ),
1436                   wfMsg( 'bugreports' ) );
1437                 return $s;
1438         }
1439
1440         function talkLink() {
1441                 global $wgTitle;
1442
1443                 if ( NS_SPECIAL == $wgTitle->getNamespace() ) {
1444                         # No discussion links for special pages
1445                         return '';
1446                 }
1447
1448                 if( $wgTitle->isTalkPage() ) {
1449                         $link = $wgTitle->getSubjectPage();
1450                         switch( $link->getNamespace() ) {
1451                                 case NS_MAIN:
1452                                         $text = wfMsg( 'articlepage' );
1453                                         break;
1454                                 case NS_USER:
1455                                         $text = wfMsg( 'userpage' );
1456                                         break;
1457                                 case NS_PROJECT:
1458                                         $text = wfMsg( 'projectpage' );
1459                                         break;
1460                                 case NS_IMAGE:
1461                                         $text = wfMsg( 'imagepage' );
1462                                         break;
1463                                 case NS_MEDIAWIKI:
1464                                         $text = wfMsg( 'mediawikipage' );
1465                                         break;
1466                                 case NS_TEMPLATE:
1467                                         $text = wfMsg( 'templatepage' );
1468                                         break;
1469                                 case NS_HELP:
1470                                         $text = wfMsg( 'viewhelppage' );
1471                                         break;
1472                                 case NS_CATEGORY:
1473                                         $text = wfMsg( 'categorypage' );
1474                                         break;
1475                                 default:
1476                                         $text = wfMsg( 'articlepage' );
1477                         }
1478                 } else {
1479                         $link = $wgTitle->getTalkPage();
1480                         $text = wfMsg( 'talkpage' );
1481                 }
1482
1483                 $s = $this->makeLinkObj( $link, $text );
1484
1485                 return $s;
1486         }
1487
1488         function commentLink() {
1489                 global $wgTitle, $wgOut;
1490
1491                 if ( $wgTitle->getNamespace() == NS_SPECIAL ) {
1492                         return '';
1493                 }
1494
1495                 # __NEWSECTIONLINK___ changes behaviour here
1496                 # If it's present, the link points to this page, otherwise
1497                 # it points to the talk page
1498                 if( $wgTitle->isTalkPage() ) {
1499                         $title = $wgTitle;
1500                 } elseif( $wgOut->showNewSectionLink() ) {
1501                         $title = $wgTitle;
1502                 } else {
1503                         $title = $wgTitle->getTalkPage();
1504                 }
1505
1506                 return $this->makeKnownLinkObj( $title, wfMsg( 'postcomment' ), 'action=edit&section=new' );
1507         }
1508
1509         /* these are used extensively in SkinTemplate, but also some other places */
1510         static function makeMainPageUrl( $urlaction = '' ) {
1511                 $title = Title::newMainPage();
1512                 self::checkTitle( $title, '' );
1513                 return $title->getLocalURL( $urlaction );
1514         }
1515
1516         static function makeSpecialUrl( $name, $urlaction = '' ) {
1517                 $title = SpecialPage::getTitleFor( $name );
1518                 return $title->getLocalURL( $urlaction );
1519         }
1520
1521         static function makeSpecialUrlSubpage( $name, $subpage, $urlaction = '' ) {
1522                 $title = SpecialPage::getSafeTitleFor( $name, $subpage );
1523                 return $title->getLocalURL( $urlaction );
1524         }
1525
1526         static function makeI18nUrl( $name, $urlaction = '' ) {
1527                 $title = Title::newFromText( wfMsgForContent( $name ) );
1528                 self::checkTitle( $title, $name );
1529                 return $title->getLocalURL( $urlaction );
1530         }
1531
1532         static function makeUrl( $name, $urlaction = '' ) {
1533                 $title = Title::newFromText( $name );
1534                 self::checkTitle( $title, $name );
1535                 return $title->getLocalURL( $urlaction );
1536         }
1537
1538         # If url string starts with http, consider as external URL, else
1539         # internal
1540         static function makeInternalOrExternalUrl( $name ) {
1541                 if ( preg_match( '/^(?:' . wfUrlProtocols() . ')/', $name ) ) {
1542                         return $name;
1543                 } else {
1544                         return self::makeUrl( $name );
1545                 }
1546         }
1547
1548         # this can be passed the NS number as defined in Language.php
1549         static function makeNSUrl( $name, $urlaction = '', $namespace = NS_MAIN ) {
1550                 $title = Title::makeTitleSafe( $namespace, $name );
1551                 self::checkTitle( $title, $name );
1552                 return $title->getLocalURL( $urlaction );
1553         }
1554
1555         /* these return an array with the 'href' and boolean 'exists' */
1556         static function makeUrlDetails( $name, $urlaction = '' ) {
1557                 $title = Title::newFromText( $name );
1558                 self::checkTitle( $title, $name );
1559                 return array(
1560                         'href' => $title->getLocalURL( $urlaction ),
1561                         'exists' => $title->getArticleID() != 0 ? true : false
1562                 );
1563         }
1564
1565         /**
1566          * Make URL details where the article exists (or at least it's convenient to think so)
1567          */
1568         static function makeKnownUrlDetails( $name, $urlaction = '' ) {
1569                 $title = Title::newFromText( $name );
1570                 self::checkTitle( $title, $name );
1571                 return array(
1572                         'href' => $title->getLocalURL( $urlaction ),
1573                         'exists' => true
1574                 );
1575         }
1576
1577         # make sure we have some title to operate on
1578         static function checkTitle( &$title, $name ) {
1579                 if( !is_object( $title ) ) {
1580                         $title = Title::newFromText( $name );
1581                         if( !is_object( $title ) ) {
1582                                 $title = Title::newFromText( '--error: link target missing--' );
1583                         }
1584                 }
1585         }
1586
1587         /**
1588          * Build an array that represents the sidebar(s), the navigation bar among them
1589          *
1590          * @return array
1591          * @private
1592          */
1593         function buildSidebar() {
1594                 global $parserMemc, $wgEnableSidebarCache;
1595                 global $wgLang, $wgContLang;
1596
1597                 $fname = 'SkinTemplate::buildSidebar';
1598
1599                 wfProfileIn( $fname );
1600
1601                 $key = wfMemcKey( 'sidebar' );
1602                 $cacheSidebar = $wgEnableSidebarCache &&
1603                         ($wgLang->getCode() == $wgContLang->getCode());
1604
1605                 if ($cacheSidebar) {
1606                         $cachedsidebar = $parserMemc->get( $key );
1607                         if ($cachedsidebar!="") {
1608                                 wfProfileOut($fname);
1609                                 return $cachedsidebar;
1610                         }
1611                 }
1612
1613                 $bar = array();
1614                 $lines = explode( "\n", wfMsgForContent( 'sidebar' ) );
1615                 foreach ($lines as $line) {
1616                         if (strpos($line, '*') !== 0)
1617                                 continue;
1618                         if (strpos($line, '**') !== 0) {
1619                                 $line = trim($line, '* ');
1620                                 $heading = $line;
1621                         } else {
1622                                 if (strpos($line, '|') !== false) { // sanity check
1623                                         $line = explode( '|' , trim($line, '* '), 2 );
1624                                         $link = wfMsgForContent( $line[0] );
1625                                         if ($link == '-')
1626                                                 continue;
1627                                         if (wfEmptyMsg($line[1], $text = wfMsg($line[1])))
1628                                                 $text = $line[1];
1629                                         if (wfEmptyMsg($line[0], $link))
1630                                                 $link = $line[0];
1631
1632                                         if ( preg_match( '/^(?:' . wfUrlProtocols() . ')/', $link ) ) {
1633                                                 $href = $link;
1634                                         } else {
1635                                                 $title = Title::newFromText( $link );
1636                                                 if ( $title ) {
1637                                                         $title = $title->fixSpecialName();
1638                                                         $href = $title->getLocalURL();
1639                                                 } else {
1640                                                         $href = 'INVALID-TITLE';
1641                                                 }
1642                                         }
1643
1644                                         $bar[$heading][] = array(
1645                                                 'text' => $text,
1646                                                 'href' => $href,
1647                                                 'id' => 'n-' . strtr($line[1], ' ', '-'),
1648                                                 'active' => false
1649                                         );
1650                                 } else { continue; }
1651                         }
1652                 }
1653                 if ($cacheSidebar)
1654                         $parserMemc->set( $key, $bar, 86400 );
1655                 wfProfileOut( $fname );
1656                 return $bar;
1657         }
1658
1659 }