includes/Skin.php

   1 <?php
   2 if ( ! defined( 'MEDIAWIKI' ) )
   3         die( 1 );
   4
   5 /**
   6  *
   7  * @package MediaWiki
   8  * @subpackage Skins
   9  */
  10
  11 # See skin.txt
  12
  13 /**
  14  * The main skin class that provide methods and properties for all other skins.
  15  * This base class is also the "Standard" skin.
  16  * @package MediaWiki
  17  */
  18 class Skin extends Linker {
  19         /**#@+
  20          * @private
  21          */
  22         var $lastdate, $lastline;
  23         var $rc_cache ; # Cache for Enhanced Recent Changes
  24         var $rcCacheIndex ; # Recent Changes Cache Counter for visibility toggle
  25         var $rcMoveIndex;
  26         /**#@-*/
  27
  28         /** Constructor, call parent constructor */
  29         function Skin() { parent::Linker(); }
  30
  31         /**
  32          * Fetch the set of available skins.
  33          * @return array of strings
  34          * @static
  35          */
  36         static function &getSkinNames() {
  37                 global $wgValidSkinNames;
  38                 static $skinsInitialised = false;
  39                 if ( !$skinsInitialised ) {
  40                         # Get a list of available skins
  41                         # Build using the regular expression '^(.*).php$'
  42                         # Array keys are all lower case, array value keep the case used by filename
  43                         #
  44                         wfProfileIn( __METHOD__ . '-init' );
  45                         global $wgStyleDirectory;
  46                         $skinDir = dir( $wgStyleDirectory );
  47
  48                         # while code from www.php.net
  49                         while (false !== ($file = $skinDir->read())) {
  50                                 // Skip non-PHP files, hidden files, and '.dep' includes
  51                                 $matches = array();
  52                                 if(preg_match('/^([^.]*)\.php$/',$file, $matches)) {
  53                                         $aSkin = $matches[1];
  54                                         $wgValidSkinNames[strtolower($aSkin)] = $aSkin;
  55                                 }
  56                         }
  57                         $skinDir->close();
  58                         $skinsInitialised = true;
  59                         wfProfileOut( __METHOD__ . '-init' );
  60                 }
  61                 return $wgValidSkinNames;
  62         }
  63
  64         /**
  65          * Normalize a skin preference value to a form that can be loaded.
  66          * If a skin can't be found, it will fall back to the configured
  67          * default (or the old 'Classic' skin if that's broken).
  68          * @param string $key
  69          * @return string
  70          * @static
  71          */
  72         static function normalizeKey( $key ) {
  73                 global $wgDefaultSkin;
  74                 $skinNames = Skin::getSkinNames();
  75
  76                 if( $key == '' ) {
  77                         // Don't return the default immediately;
  78                         // in a misconfiguration we need to fall back.
  79                         $key = $wgDefaultSkin;
  80                 }
  81
  82                 if( isset( $skinNames[$key] ) ) {
  83                         return $key;
  84                 }
  85
  86                 // Older versions of the software used a numeric setting
  87                 // in the user preferences.
  88                 $fallback = array(
  89                         0 => $wgDefaultSkin,
  90                         1 => 'nostalgia',
  91                         2 => 'cologneblue' );
  92
  93                 if( isset( $fallback[$key] ) ){
  94                         $key = $fallback[$key];
  95                 }
  96
  97                 if( isset( $skinNames[$key] ) ) {
  98                         return $key;
  99                 } else {
 100                         // The old built-in skin
 101                         return 'standard';
 102                 }
 103         }
 104
 105         /**
 106          * Factory method for loading a skin of a given type
 107          * @param string $key 'monobook', 'standard', etc
 108          * @return Skin
 109          * @static
 110          */
 111         static function &newFromKey( $key ) {
 112                 global $wgStyleDirectory;
 113
 114                 $key = Skin::normalizeKey( $key );
 115
 116                 $skinNames = Skin::getSkinNames();
 117                 $skinName = $skinNames[$key];
 118
 119                 # Grab the skin class and initialise it.
 120                 // Preload base classes to work around APC/PHP5 bug
 121                 $deps = "{$wgStyleDirectory}/{$skinName}.deps.php";
 122                 if( file_exists( $deps ) ) include_once( $deps );
 123                 require_once( "{$wgStyleDirectory}/{$skinName}.php" );
 124
 125                 # Check if we got if not failback to default skin
 126                 $className = 'Skin'.$skinName;
 127                 if( !class_exists( $className ) ) {
 128                         # DO NOT die if the class isn't found. This breaks maintenance
 129                         # scripts and can cause a user account to be unrecoverable
 130                         # except by SQL manipulation if a previously valid skin name
 131                         # is no longer valid.
 132                         wfDebug( "Skin class does not exist: $className\n" );
 133                         $className = 'SkinStandard';
 134                         require_once( "{$wgStyleDirectory}/Standard.php" );
 135                 }
 136                 $skin = new $className;
 137                 return $skin;
 138         }
 139
 140         /** @return string path to the skin stylesheet */
 141         function getStylesheet() {
 142                 return 'common/wikistandard.css';
 143         }
 144
 145         /** @return string skin name */
 146         function getSkinName() {
 147                 return 'standard';
 148         }
 149
 150         function qbSetting() {
 151                 global $wgOut, $wgUser;
 152
 153                 if ( $wgOut->isQuickbarSuppressed() ) { return 0; }
 154                 $q = $wgUser->getOption( 'quickbar' );
 155                 if ( '' == $q ) { $q = 0; }
 156                 return $q;
 157         }
 158
 159         function initPage( &$out ) {
 160                 global $wgFavicon, $wgScriptPath, $wgSitename, $wgLanguageCode, $wgLanguageNames;
 161
 162                 $fname = 'Skin::initPage';
 163                 wfProfileIn( $fname );
 164
 165                 if( false !== $wgFavicon ) {
 166                         $out->addLink( array( 'rel' => 'shortcut icon', 'href' => $wgFavicon ) );
 167                 }
 168
 169                 # OpenSearch description link
 170                 $out->addLink( array(
 171                         'rel' => 'search',
 172                         'type' => 'application/opensearchdescription+xml',
 173                         'href' => "$wgScriptPath/opensearch_desc.php",
 174                         'title' => "$wgSitename ({$wgLanguageNames[$wgLanguageCode]})",
 175                 ));
 176
 177                 $this->addMetadataLinks($out);
 178
 179                 $this->mRevisionId = $out->mRevisionId;
 180
 181                 $this->preloadExistence();
 182
 183                 wfProfileOut( $fname );
 184         }
 185
 186         /**
 187          * Preload the existence of three commonly-requested pages in a single query
 188          */
 189         function preloadExistence() {
 190                 global $wgUser, $wgTitle;
 191
 192                 if ( $wgTitle->isTalkPage() ) {
 193                         $otherTab = $wgTitle->getSubjectPage();
 194                 } else {
 195                         $otherTab = $wgTitle->getTalkPage();
 196                 }
 197                 $lb = new LinkBatch( array(
 198                         $wgUser->getUserPage(),
 199                         $wgUser->getTalkPage(),
 200                         $otherTab
 201                 ));
 202                 $lb->execute();
 203         }
 204
 205         function addMetadataLinks( &$out ) {
 206                 global $wgTitle, $wgEnableDublinCoreRdf, $wgEnableCreativeCommonsRdf;
 207                 global $wgRightsPage, $wgRightsUrl;
 208
 209                 if( $out->isArticleRelated() ) {
 210                         # note: buggy CC software only reads first "meta" link
 211                         if( $wgEnableCreativeCommonsRdf ) {
 212                                 $out->addMetadataLink( array(
 213                                         'title' => 'Creative Commons',
 214                                         'type' => 'application/rdf+xml',
 215                                         'href' => $wgTitle->getLocalURL( 'action=creativecommons') ) );
 216                         }
 217                         if( $wgEnableDublinCoreRdf ) {
 218                                 $out->addMetadataLink( array(
 219                                         'title' => 'Dublin Core',
 220                                         'type' => 'application/rdf+xml',
 221                                         'href' => $wgTitle->getLocalURL( 'action=dublincore' ) ) );
 222                         }
 223                 }
 224                 $copyright = '';
 225                 if( $wgRightsPage ) {
 226                         $copy = Title::newFromText( $wgRightsPage );
 227                         if( $copy ) {
 228                                 $copyright = $copy->getLocalURL();
 229                         }
 230                 }
 231                 if( !$copyright && $wgRightsUrl ) {
 232                         $copyright = $wgRightsUrl;
 233                 }
 234                 if( $copyright ) {
 235                         $out->addLink( array(
 236                                 'rel' => 'copyright',
 237                                 'href' => $copyright ) );
 238                 }
 239         }
 240
 241         function outputPage( &$out ) {
 242                 global $wgDebugComments;
 243
 244                 wfProfileIn( 'Skin::outputPage' );
 245                 $this->initPage( $out );
 246
 247                 $out->out( $out->headElement() );
 248
 249                 $out->out( "\n<body" );
 250                 $ops = $this->getBodyOptions();
 251                 foreach ( $ops as $name => $val ) {
 252                         $out->out( " $name='$val'" );
 253                 }
 254                 $out->out( ">\n" );
 255                 if ( $wgDebugComments ) {
 256                         $out->out( "<!-- Wiki debugging output:\n" .
 257                           $out->mDebugtext . "-->\n" );
 258                 }
 259
 260                 $out->out( $this->beforeContent() );
 261
 262                 $out->out( $out->mBodytext . "\n" );
 263
 264                 $out->out( $this->afterContent() );
 265
 266                 $out->out( $this->bottomScripts() );
 267
 268                 $out->out( $out->reportTime() );
 269
 270                 $out->out( "\n</body></html>" );
 271         }
 272
 273         static function makeVariablesScript( $data ) {
 274                 global $wgJsMimeType;
 275
 276                 $r = "<script type= \"$wgJsMimeType\"><!--\n";
 277                 foreach ( $data as $name => $value ) {
 278                         $encValue = Xml::encodeJsVar( $value );
 279                         $r .= "var $name = $encValue;\n";
 280                 }
 281                 $r .= "--></script>\n";
 282
 283                 return $r;
 284         }
 285
 286         /**
 287          * Make a <script> tag containing global variables
 288          * @param array $data Associative array containing one element:
 289          *     skinname => the skin name
 290          * The odd calling convention is for backwards compatibility
 291          */
 292         static function makeGlobalVariablesScript( $data ) {
 293                 global $wgStylePath, $wgUser;
 294                 global $wgArticlePath, $wgScriptPath, $wgServer, $wgContLang, $wgLang;
 295                 global $wgTitle, $wgCanonicalNamespaceNames, $wgOut, $wgArticle;
 296                 global $wgBreakFrames, $wgBreakFramesExceptions;
 297
 298                 $ns = $wgTitle->getNamespace();
 299                 $nsname = isset( $wgCanonicalNamespaceNames[ $ns ] ) ? $wgCanonicalNamespaceNames[ $ns ] : $wgTitle->getNsText();
 300
 301                 $vars = array(
 302                         'skin' => $data['skinname'],
 303                         'stylepath' => $wgStylePath,
 304                         'wgArticlePath' => $wgArticlePath,
 305                         'wgScriptPath' => $wgScriptPath,
 306                         'wgServer' => $wgServer,
 307                         'wgCanonicalNamespace' => $nsname,
 308                         'wgNamespaceNumber' => $wgTitle->getNamespace(),
 309                         'wgPageName' => $wgTitle->getPrefixedDBKey(),
 310                         'wgTitle' => $wgTitle->getText(),
 311                         'wgArticleId' => $wgTitle->getArticleId(),
 312                         'wgIsArticle' => $wgOut->isArticle(),
 313                         'wgUserName' => $wgUser->isAnon() ? NULL : $wgUser->getName(),
 314                         'wgUserLanguage' => $wgLang->getCode(),
 315                         'wgContentLanguage' => $wgContLang->getCode(),
 316                         'wgBreakFrames' => $wgBreakFrames,
 317                         'wgBreakFramesExceptions' => $wgBreakFramesExceptions,
 318                         'wgCurRevisionId' => isset( $wgArticle ) ? $wgArticle->getLatest() : 0,
 319                 );
 320
 321                 return self::makeVariablesScript( $vars );
 322         }
 323
 324         function getHeadScripts() {
 325                 global $wgStylePath, $wgUser, $wgAllowUserJs, $wgJsMimeType, $wgStyleVersion;
 326
 327                 $r = self::makeGlobalVariablesScript( array( 'skinname' => $this->getSkinName() ) );
 328
 329                 $r .= "<script type=\"{$wgJsMimeType}\" src=\"{$wgStylePath}/common/wikibits.js?$wgStyleVersion\"></script>\n";
 330                 global $wgUseSiteJs;
 331                 if ($wgUseSiteJs) {
 332                         if ($wgUser->isLoggedIn()) {
 333                                 $r .= "<script type=\"$wgJsMimeType\" src=\"".htmlspecialchars(self::makeUrl('-','action=raw&smaxage=0&gen=js'))."\"><!-- site js --></script>\n";
 334                         } else {
 335                                 $r .= "<script type=\"$wgJsMimeType\" src=\"".htmlspecialchars(self::makeUrl('-','action=raw&gen=js'))."\"><!-- site js --></script>\n";
 336                         }
 337                 }
 338                 if( $wgAllowUserJs && $wgUser->isLoggedIn() ) {
 339                         $userpage = $wgUser->getUserPage();
 340                         $userjs = htmlspecialchars( self::makeUrl(
 341                                 $userpage->getPrefixedText().'/'.$this->getSkinName().'.js',
 342                                 'action=raw&ctype='.$wgJsMimeType));
 343                         $r .= '<script type="'.$wgJsMimeType.'" src="'.$userjs."\"></script>\n";
 344                 }
 345                 return $r;
 346         }
 347
 348         /**
 349          * To make it harder for someone to slip a user a fake
 350          * user-JavaScript or user-CSS preview, a random token
 351          * is associated with the login session. If it's not
 352          * passed back with the preview request, we won't render
 353          * the code.
 354          *
 355          * @param string $action
 356          * @return bool
 357          * @private
 358          */
 359         function userCanPreview( $action ) {
 360                 global $wgTitle, $wgRequest, $wgUser;
 361
 362                 if( $action != 'submit' )
 363                         return false;
 364                 if( !$wgRequest->wasPosted() )
 365                         return false;
 366                 if( !$wgTitle->userCanEditCssJsSubpage() )
 367                         return false;
 368                 return $wgUser->matchEditToken(
 369                         $wgRequest->getVal( 'wpEditToken' ) );
 370         }
 371
 372         # get the user/site-specific stylesheet, SkinTemplate loads via RawPage.php (settings are cached that way)
 373         function getUserStylesheet() {
 374                 global $wgStylePath, $wgRequest, $wgContLang, $wgSquidMaxage, $wgStyleVersion;
 375                 $sheet = $this->getStylesheet();
 376                 $s = "@import \"$wgStylePath/common/common.css?$wgStyleVersion\";\n";
 377                 $s .= "@import \"$wgStylePath/$sheet?$wgStyleVersion\";\n";
 378                 if($wgContLang->isRTL()) $s .= "@import \"$wgStylePath/common/common_rtl.css?$wgStyleVersion\";\n";
 379
 380                 $query = "usemsgcache=yes&action=raw&ctype=text/css&smaxage=$wgSquidMaxage";
 381                 $s .= '@import "' . self::makeNSUrl( 'Common.css', $query, NS_MEDIAWIKI ) . "\";\n" .
 382                         '@import "' . self::makeNSUrl( ucfirst( $this->getSkinName() . '.css' ), $query, NS_MEDIAWIKI ) . "\";\n";
 383
 384                 $s .= $this->doGetUserStyles();
 385                 return $s."\n";
 386         }
 387
 388         /**
 389          * This returns MediaWiki:Common.js.  For some bizarre reason, it does
 390          * *not* return any custom user JS from user subpages.  Huh?
 391          *
 392          * @return string
 393          */
 394         function getUserJs() {
 395                 $fname = 'Skin::getUserJs';
 396                 wfProfileIn( $fname );
 397
 398                 global $wgStylePath;
 399                 $s = "/* generated javascript */\n";
 400                 $s .= "var skin = '{$this->skinname}';\nvar stylepath = '{$wgStylePath}';";
 401                 $s .= "\n\n/* MediaWiki:Common.js */\n";
 402                 $commonJs = wfMsgForContent('Common.js');
 403                 if ( !wfEmptyMsg ( 'Common.js', $commonJs ) ) {
 404                         $s .= $commonJs;
 405                 }
 406
 407                 wfProfileOut( $fname );
 408                 return $s;
 409     }
 410
 411         /**
 412          * Return html code that include User stylesheets
 413          */
 414         function getUserStyles() {
 415                 $s = "<style type='text/css'>\n";
 416                 $s .= "/*/*/ /*<![CDATA[*/\n"; # <-- Hide the styles from Netscape 4 without hiding them from IE/Mac
 417                 $s .= $this->getUserStylesheet();
 418                 $s .= "/*]]>*/ /* */\n";
 419                 $s .= "</style>\n";
 420                 return $s;
 421         }
 422
 423         /**
 424          * Some styles that are set by user through the user settings interface.
 425          */
 426         function doGetUserStyles() {
 427                 global $wgUser, $wgUser, $wgRequest, $wgTitle, $wgAllowUserCss;
 428
 429                 $s = '';
 430
 431                 if( $wgAllowUserCss && $wgUser->isLoggedIn() ) { # logged in
 432                         if($wgTitle->isCssSubpage() && $this->userCanPreview( $wgRequest->getText( 'action' ) ) ) {
 433                                 $s .= $wgRequest->getText('wpTextbox1');
 434                         } else {
 435                                 $userpage = $wgUser->getUserPage();
 436                                 $s.= '@import "'.self::makeUrl(
 437                                         $userpage->getPrefixedText().'/'.$this->getSkinName().'.css',
 438                                         'action=raw&ctype=text/css').'";'."\n";
 439                         }
 440                 }
 441
 442                 return $s . $this->reallyDoGetUserStyles();
 443         }
 444
 445         function reallyDoGetUserStyles() {
 446                 global $wgUser;
 447                 $s = '';
 448                 if (($undopt = $wgUser->getOption("underline")) != 2) {
 449                         $underline = $undopt ? 'underline' : 'none';
 450                         $s .= "a { text-decoration: $underline; }\n";
 451                 }
 452                 if( $wgUser->getOption( 'highlightbroken' ) ) {
 453                         $s .= "a.new, #quickbar a.new { color: #CC2200; }\n";
 454                 } else {
 455                         $s .= <<<END
 456 a.new, #quickbar a.new,
 457 a.stub, #quickbar a.stub {
 458         color: inherit;
 459         text-decoration: inherit;
 460 }
 461 a.new:after, #quickbar a.new:after {
 462         content: "?";
 463         color: #CC2200;
 464         text-decoration: $underline;
 465 }
 466 a.stub:after, #quickbar a.stub:after {
 467         content: "!";
 468         color: #772233;
 469         text-decoration: $underline;
 470 }
 471 END;
 472                 }
 473                 if( $wgUser->getOption( 'justify' ) ) {
 474                         $s .= "#article, #bodyContent { text-align: justify; }\n";
 475                 }
 476                 if( !$wgUser->getOption( 'showtoc' ) ) {
 477                         $s .= "#toc { display: none; }\n";
 478                 }
 479                 if( !$wgUser->getOption( 'editsection' ) ) {
 480                         $s .= ".editsection { display: none; }\n";
 481                 }
 482                 return $s;
 483         }
 484
 485         function getBodyOptions() {
 486                 global $wgUser, $wgTitle, $wgOut, $wgRequest, $wgContLang;
 487
 488                 extract( $wgRequest->getValues( 'oldid', 'redirect', 'diff' ) );
 489
 490                 if ( 0 != $wgTitle->getNamespace() ) {
 491                         $a = array( 'bgcolor' => '#ffffec' );
 492                 }
 493                 else $a = array( 'bgcolor' => '#FFFFFF' );
 494                 if($wgOut->isArticle() && $wgUser->getOption('editondblclick') &&
 495                   $wgTitle->userCanEdit() ) {
 496                         $s = $wgTitle->getFullURL( $this->editUrlOptions() );
 497                         $s = 'document.location = "' .wfEscapeJSString( $s ) .'";';
 498                         $a += array ('ondblclick' => $s);
 499
 500                 }
 501                 $a['onload'] = $wgOut->getOnloadHandler();
 502                 if( $wgUser->getOption( 'editsectiononrightclick' ) ) {
 503                         if( $a['onload'] != '' ) {
 504                                 $a['onload'] .= ';';
 505                         }
 506                         $a['onload'] .= 'setupRightClickEdit()';
 507                 }
 508                 $a['class'] = 'ns-'.$wgTitle->getNamespace().' '.($wgContLang->isRTL() ? "rtl" : "ltr").
 509                 ' '.Sanitizer::escapeId( 'page-'.$wgTitle->getPrefixedText() );
 510                 return $a;
 511         }
 512
 513         /**
 514          * URL to the logo
 515          */
 516         function getLogo() {
 517                 global $wgLogo;
 518                 return $wgLogo;
 519         }
 520
 521         /**
 522          * This will be called immediately after the <body> tag.  Split into
 523          * two functions to make it easier to subclass.
 524          */
 525         function beforeContent() {
 526                 return $this->doBeforeContent();
 527         }
 528
 529         function doBeforeContent() {
 530                 global $wgContLang;
 531                 $fname = 'Skin::doBeforeContent';
 532                 wfProfileIn( $fname );
 533
 534                 $s = '';
 535                 $qb = $this->qbSetting();
 536
 537                 if( $langlinks = $this->otherLanguages() ) {
 538                         $rows = 2;
 539                         $borderhack = '';
 540                 } else {
 541                         $rows = 1;
 542                         $langlinks = false;
 543                         $borderhack = 'class="top"';
 544                 }
 545
 546                 $s .= "\n<div id='content'>\n<div id='topbar'>\n" .
 547                   "<table border='0' cellspacing='0' width='98%'>\n<tr>\n";
 548
 549                 $shove = ($qb != 0);
 550                 $left = ($qb == 1 || $qb == 3);
 551                 if($wgContLang->isRTL()) $left = !$left;
 552
 553                 if ( !$shove ) {
 554                         $s .= "<td class='top' align='left' valign='top' rowspan='{$rows}'>\n" .
 555                           $this->logoText() . '</td>';
 556                 } elseif( $left ) {
 557                         $s .= $this->getQuickbarCompensator( $rows );
 558                 }
 559                 $l = $wgContLang->isRTL() ? 'right' : 'left';
 560                 $s .= "<td {$borderhack} align='$l' valign='top'>\n";
 561
 562                 $s .= $this->topLinks() ;
 563                 $s .= "<p class='subtitle'>" . $this->pageTitleLinks() . "</p>\n";
 564
 565                 $r = $wgContLang->isRTL() ? "left" : "right";
 566                 $s .= "</td>\n<td {$borderhack} valign='top' align='$r' nowrap='nowrap'>";
 567                 $s .= $this->nameAndLogin();
 568                 $s .= "\n<br />" . $this->searchForm() . "</td>";
 569
 570                 if ( $langlinks ) {
 571                         $s .= "</tr>\n<tr>\n<td class='top' colspan=\"2\">$langlinks</td>\n";
 572                 }
 573
 574                 if ( $shove && !$left ) { # Right
 575                         $s .= $this->getQuickbarCompensator( $rows );
 576                 }
 577                 $s .= "</tr>\n</table>\n</div>\n";
 578                 $s .= "\n<div id='article'>\n";
 579
 580                 $notice = wfGetSiteNotice();
 581                 if( $notice ) {
 582                         $s .= "\n<div id='siteNotice'>$notice</div>\n";
 583                 }
 584                 $s .= $this->pageTitle();
 585                 $s .= $this->pageSubtitle() ;
 586                 $s .= $this->getCategories();
 587                 wfProfileOut( $fname );
 588                 return $s;
 589         }
 590
 591
 592         function getCategoryLinks () {
 593                 global $wgOut, $wgTitle, $wgUseCategoryBrowser;
 594                 global $wgContLang;
 595
 596                 if( count( $wgOut->mCategoryLinks ) == 0 ) return '';
 597
 598                 # Separator
 599                 $sep = wfMsgHtml( 'catseparator' );
 600
 601                 // Use Unicode bidi embedding override characters,
 602                 // to make sure links don't smash each other up in ugly ways.
 603                 $dir = $wgContLang->isRTL() ? 'rtl' : 'ltr';
 604                 $embed = "<span dir='$dir'>";
 605                 $pop = '</span>';
 606                 $t = $embed . implode ( "{$pop} {$sep} {$embed}" , $wgOut->mCategoryLinks ) . $pop;
 607
 608                 $msg = wfMsgExt( 'pagecategories', array( 'parsemag', 'escape' ), count( $wgOut->mCategoryLinks ) );
 609                 $s = $this->makeLinkObj( Title::newFromText( wfMsgForContent('pagecategorieslink') ), $msg )
 610                         . ': ' . $t;
 611
 612                 # optional 'dmoz-like' category browser. Will be shown under the list
 613                 # of categories an article belong to
 614                 if($wgUseCategoryBrowser) {
 615                         $s .= '<br /><hr />';
 616
 617                         # get a big array of the parents tree
 618                         $parenttree = $wgTitle->getParentCategoryTree();
 619                         # Skin object passed by reference cause it can not be
 620                         # accessed under the method subfunction drawCategoryBrowser
 621                         $tempout = explode("\n", Skin::drawCategoryBrowser($parenttree, $this) );
 622                         # Clean out bogus first entry and sort them
 623                         unset($tempout[0]);
 624                         asort($tempout);
 625                         # Output one per line
 626                         $s .= implode("<br />\n", $tempout);
 627                 }
 628
 629                 return $s;
 630         }
 631
 632         /** Render the array as a serie of links.
 633          * @param $tree Array: categories tree returned by Title::getParentCategoryTree
 634          * @param &skin Object: skin passed by reference
 635          * @return String separated by &gt;, terminate with "\n"
 636          */
 637         function drawCategoryBrowser($tree, &$skin) {
 638                 $return = '';
 639                 foreach ($tree as $element => $parent) {
 640                         if (empty($parent)) {
 641                                 # element start a new list
 642                                 $return .= "\n";
 643                         } else {
 644                                 # grab the others elements
 645                                 $return .= Skin::drawCategoryBrowser($parent, $skin) . ' &gt; ';
 646                         }
 647                         # add our current element to the list
 648                         $eltitle = Title::NewFromText($element);
 649                         $return .=  $skin->makeLinkObj( $eltitle, $eltitle->getText() ) ;
 650                 }
 651                 return $return;
 652         }
 653
 654         function getCategories() {
 655                 $catlinks=$this->getCategoryLinks();
 656                 if(!empty($catlinks)) {
 657                         return "<p class='catlinks'>{$catlinks}</p>";
 658                 }
 659         }
 660
 661         function getQuickbarCompensator( $rows = 1 ) {
 662                 return "<td width='152' rowspan='{$rows}'>&nbsp;</td>";
 663         }
 664
 665         /**
 666          * This gets called shortly before the \</body\> tag.
 667          * @return String HTML to be put before \</body\>
 668          */
 669         function afterContent() {
 670                 $printfooter = "<div class=\"printfooter\">\n" . $this->printFooter() . "</div>\n";
 671                 return $printfooter . $this->doAfterContent();
 672         }
 673
 674         /**
 675          * This gets called shortly before the \</body\> tag.
 676          * @return String HTML-wrapped JS code to be put before \</body\>
 677          */
 678         function bottomScripts() {
 679                 global $wgJsMimeType;
 680                 return "\n\t\t<script type=\"$wgJsMimeType\">if (window.runOnloadHook) runOnloadHook();</script>\n";
 681         }
 682
 683         /** @return string Retrievied from HTML text */
 684         function printSource() {
 685                 global $wgTitle;
 686                 $url = htmlspecialchars( $wgTitle->getFullURL() );
 687                 return wfMsg( 'retrievedfrom', '<a href="'.$url.'">'.$url.'</a>' );
 688         }
 689
 690         function printFooter() {
 691                 return "<p>" .  $this->printSource() .
 692                         "</p>\n\n<p>" . $this->pageStats() . "</p>\n";
 693         }
 694
 695         /** overloaded by derived classes */
 696         function doAfterContent() { }
 697
 698         function pageTitleLinks() {
 699                 global $wgOut, $wgTitle, $wgUser, $wgRequest;
 700
 701                 $oldid = $wgRequest->getVal( 'oldid' );
 702                 $diff = $wgRequest->getVal( 'diff' );
 703                 $action = $wgRequest->getText( 'action' );
 704
 705                 $s = $this->printableLink();
 706                 $disclaimer = $this->disclaimerLink(); # may be empty
 707                 if( $disclaimer ) {
 708                         $s .= ' | ' . $disclaimer;
 709                 }
 710                 $privacy = $this->privacyLink(); # may be empty too
 711                 if( $privacy ) {
 712                         $s .= ' | ' . $privacy;
 713                 }
 714
 715                 if ( $wgOut->isArticleRelated() ) {
 716                         if ( $wgTitle->getNamespace() == NS_IMAGE ) {
 717                                 $name = $wgTitle->getDBkey();
 718                                 $image = new Image( $wgTitle );
 719                                 if( $image->exists() ) {
 720                                         $link = htmlspecialchars( $image->getURL() );
 721                                         $style = $this->getInternalLinkAttributes( $link, $name );
 722                                         $s .= " | <a href=\"{$link}\"{$style}>{$name}</a>";
 723                                 }
 724                         }
 725                 }
 726                 if ( 'history' == $action || isset( $diff ) || isset( $oldid ) ) {
 727                         $s .= ' | ' . $this->makeKnownLinkObj( $wgTitle,
 728                                         wfMsg( 'currentrev' ) );
 729                 }
 730
 731                 if ( $wgUser->getNewtalk() ) {
 732                         # do not show "You have new messages" text when we are viewing our
 733                         # own talk page
 734                         if( !$wgTitle->equals( $wgUser->getTalkPage() ) ) {
 735                                 $tl = $this->makeKnownLinkObj( $wgUser->getTalkPage(), wfMsgHtml( 'newmessageslink' ), 'redirect=no' );
 736                                 $dl = $this->makeKnownLinkObj( $wgUser->getTalkPage(), wfMsgHtml( 'newmessagesdifflink' ), 'diff=cur' );
 737                                 $s.= ' | <strong>'. wfMsg( 'youhavenewmessages', $tl, $dl ) . '</strong>';
 738                                 # disable caching
 739                                 $wgOut->setSquidMaxage(0);
 740                                 $wgOut->enableClientCache(false);
 741                         }
 742                 }
 743
 744                 $undelete = $this->getUndeleteLink();
 745                 if( !empty( $undelete ) ) {
 746                         $s .= ' | '.$undelete;
 747                 }
 748                 return $s;
 749         }
 750
 751         function getUndeleteLink() {
 752                 global $wgUser, $wgTitle, $wgContLang, $action;
 753                 if(     $wgUser->isAllowed( 'deletedhistory' ) &&
 754                         (($wgTitle->getArticleId() == 0) || ($action == "history")) &&
 755                         ($n = $wgTitle->isDeleted() ) )
 756                 {
 757                         if ( $wgUser->isAllowed( 'delete' ) ) {
 758                                 $msg = 'thisisdeleted';
 759                         } else {
 760                                 $msg = 'viewdeleted';
 761                         }
 762                         return wfMsg( $msg,
 763                                 $this->makeKnownLink(
 764                                         $wgContLang->SpecialPage( 'Undelete/' . $wgTitle->getPrefixedDBkey() ),
 765                                         wfMsgExt( 'restorelink', array( 'parsemag', 'escape' ), $n ) ) );
 766                 }
 767                 return '';
 768         }
 769
 770         function printableLink() {
 771                 global $wgOut, $wgFeedClasses, $wgRequest;
 772
 773                 $baseurl = $_SERVER['REQUEST_URI'];
 774                 if( strpos( '?', $baseurl ) == false ) {
 775                         $baseurl .= '?';
 776                 } else {
 777                         $baseurl .= '&';
 778                 }
 779                 $baseurl = htmlspecialchars( $baseurl );
 780                 $printurl = $wgRequest->escapeAppendQuery( 'printable=yes' );
 781
 782                 $s = "<a href=\"$printurl\">" . wfMsg( 'printableversion' ) . '</a>';
 783                 if( $wgOut->isSyndicated() ) {
 784                         foreach( $wgFeedClasses as $format => $class ) {
 785                                 $feedurl = $wgRequest->escapeAppendQuery( "feed=$format" );
 786                                 $s .= " | <a href=\"$feedurl\">{$format}</a>";
 787                         }
 788                 }
 789                 return $s;
 790         }
 791
 792         function pageTitle() {
 793                 global $wgOut;
 794                 $s = '<h1 class="pagetitle">' . htmlspecialchars( $wgOut->getPageTitle() ) . '</h1>';
 795                 return $s;
 796         }
 797
 798         function pageSubtitle() {
 799                 global $wgOut;
 800
 801                 $sub = $wgOut->getSubtitle();
 802                 if ( '' == $sub ) {
 803                         global $wgExtraSubtitle;
 804                         $sub = wfMsg( 'tagline' ) . $wgExtraSubtitle;
 805                 }
 806                 $subpages = $this->subPageSubtitle();
 807                 $sub .= !empty($subpages)?"</p><p class='subpages'>$subpages":'';
 808                 $s = "<p class='subtitle'>{$sub}</p>\n";
 809                 return $s;
 810         }
 811
 812         function subPageSubtitle() {
 813                 global $wgOut,$wgTitle,$wgNamespacesWithSubpages;
 814                 $subpages = '';
 815                 if($wgOut->isArticle() && !empty($wgNamespacesWithSubpages[$wgTitle->getNamespace()])) {
 816                         $ptext=$wgTitle->getPrefixedText();
 817                         if(preg_match('/\//',$ptext)) {
 818                                 $links = explode('/',$ptext);
 819                                 $c = 0;
 820                                 $growinglink = '';
 821                                 foreach($links as $link) {
 822                                         $c++;
 823                                         if ($c<count($links)) {
 824                                                 $growinglink .= $link;
 825                                                 $getlink = $this->makeLink( $growinglink, htmlspecialchars( $link ) );
 826                                                 if(preg_match('/class="new"/i',$getlink)) { break; } # this is a hack, but it saves time
 827                                                 if ($c>1) {
 828                                                         $subpages .= ' | ';
 829                                                 } else  {
 830                                                         $subpages .= '&lt; ';
 831                                                 }
 832                                                 $subpages .= $getlink;
 833                                                 $growinglink .= '/';
 834                                         }
 835                                 }
 836                         }
 837                 }
 838                 return $subpages;
 839         }
 840
 841         function nameAndLogin() {
 842                 global $wgUser, $wgTitle, $wgLang, $wgContLang, $wgShowIPinHeader;
 843
 844                 $lo = $wgContLang->specialPage( 'Userlogout' );
 845
 846                 $s = '';
 847                 if ( $wgUser->isAnon() ) {
 848                         if( $wgShowIPinHeader && isset( $_COOKIE[ini_get('session.name')] ) ) {
 849                                 $n = wfGetIP();
 850
 851                                 $tl = $this->makeKnownLinkObj( $wgUser->getTalkPage(),
 852                                   $wgLang->getNsText( NS_TALK ) );
 853
 854                                 $s .= $n . ' ('.$tl.')';
 855                         } else {
 856                                 $s .= wfMsg('notloggedin');
 857                         }
 858
 859                         $rt = $wgTitle->getPrefixedURL();
 860                         if ( 0 == strcasecmp( urlencode( $lo ), $rt ) ) {
 861                                 $q = '';
 862                         } else { $q = "returnto={$rt}"; }
 863
 864                         $s .= "\n<br />" . $this->makeKnownLinkObj(
 865                                 SpecialPage::getTitleFor( 'Userlogin' ),
 866                                 wfMsg( 'login' ), $q );
 867                 } else {
 868                         $n = $wgUser->getName();
 869                         $rt = $wgTitle->getPrefixedURL();
 870                         $tl = $this->makeKnownLinkObj( $wgUser->getTalkPage(),
 871                           $wgLang->getNsText( NS_TALK ) );
 872
 873                         $tl = " ({$tl})";
 874
 875                         $s .= $this->makeKnownLinkObj( $wgUser->getUserPage(),
 876                           $n ) . "{$tl}<br />" .
 877                           $this->makeKnownLinkObj( SpecialPage::getTitleFor( 'Userlogout' ), wfMsg( 'logout' ),
 878                           "returnto={$rt}" ) . ' | ' .
 879                           $this->specialLink( 'preferences' );
 880                 }
 881                 $s .= ' | ' . $this->makeKnownLink( wfMsgForContent( 'helppage' ),
 882                   wfMsg( 'help' ) );
 883
 884                 return $s;
 885         }
 886
 887         function getSearchLink() {
 888                 $searchPage = SpecialPage::getTitleFor( 'Search' );
 889                 return $searchPage->getLocalURL();
 890         }
 891
 892         function escapeSearchLink() {
 893                 return htmlspecialchars( $this->getSearchLink() );
 894         }
 895
 896         function searchForm() {
 897                 global $wgRequest;
 898                 $search = $wgRequest->getText( 'search' );
 899
 900                 $s = '<form name="search" class="inline" method="post" action="'
 901                   . $this->escapeSearchLink() . "\">\n"
 902                   . '<input type="text" name="search" size="19" value="'
 903                   . htmlspecialchars(substr($search,0,256)) . "\" />\n"
 904                   . '<input type="submit" name="go" value="' . wfMsg ('searcharticle') . '" />&nbsp;'
 905                   . '<input type="submit" name="fulltext" value="' . wfMsg ('searchbutton') . "\" />\n</form>";
 906
 907                 return $s;
 908         }
 909
 910         function topLinks() {
 911                 global $wgOut;
 912                 $sep = " |\n";
 913
 914                 $s = $this->mainPageLink() . $sep
 915                   . $this->specialLink( 'recentchanges' );
 916
 917                 if ( $wgOut->isArticleRelated() ) {
 918                         $s .=  $sep . $this->editThisPage()
 919                           . $sep . $this->historyLink();
 920                 }
 921                 # Many people don't like this dropdown box
 922                 #$s .= $sep . $this->specialPagesList();
 923
 924                 $s .= $this->variantLinks();
 925
 926                 $s .= $this->extensionTabLinks();
 927
 928                 return $s;
 929         }
 930
 931         /**
 932          * Compatibility for extensions adding functionality through tabs.
 933          * Eventually these old skins should be replaced with SkinTemplate-based
 934          * versions, sigh...
 935          * @return string
 936          */
 937         function extensionTabLinks() {
 938                 $tabs = array();
 939                 $s = '';
 940                 wfRunHooks( 'SkinTemplateTabs', array( $this, &$tabs ) );
 941                 foreach( $tabs as $tab ) {
 942                         $s .= ' | ' . Xml::element( 'a',
 943                                 array( 'href' => $tab['href'] ),
 944                                 $tab['text'] );
 945                 }
 946                 return $s;
 947         }
 948
 949         /**
 950          * Language/charset variant links for classic-style skins
 951          * @return string
 952          */
 953         function variantLinks() {
 954                 $s = '';
 955                 /* show links to different language variants */
 956                 global $wgDisableLangConversion, $wgContLang, $wgTitle;
 957                 $variants = $wgContLang->getVariants();
 958                 if( !$wgDisableLangConversion && sizeof( $variants ) > 1 ) {
 959                         foreach( $variants as $code ) {
 960                                 $varname = $wgContLang->getVariantname( $code );
 961                                 if( $varname == 'disable' )
 962                                         continue;
 963                                 $s .= ' | <a href="' . $wgTitle->escapeLocalUrl( 'variant=' . $code ) . '">' . htmlspecialchars( $varname ) . '</a>';
 964                         }
 965                 }
 966                 return $s;
 967         }
 968
 969         function bottomLinks() {
 970                 global $wgOut, $wgUser, $wgTitle, $wgUseTrackbacks;
 971                 $sep = " |\n";
 972
 973                 $s = '';
 974                 if ( $wgOut->isArticleRelated() ) {
 975                         $s .= '<strong>' . $this->editThisPage() . '</strong>';
 976                         if ( $wgUser->isLoggedIn() ) {
 977                                 $s .= $sep . $this->watchThisPage();
 978                         }
 979                         $s .= $sep . $this->talkLink()
 980                           . $sep . $this->historyLink()
 981                           . $sep . $this->whatLinksHere()
 982                           . $sep . $this->watchPageLinksLink();
 983
 984                         if ($wgUseTrackbacks)
 985                                 $s .= $sep . $this->trackbackLink();
 986
 987                         if ( $wgTitle->getNamespace() == NS_USER
 988                             || $wgTitle->getNamespace() == NS_USER_TALK )
 989
 990                         {
 991                                 $id=User::idFromName($wgTitle->getText());
 992                                 $ip=User::isIP($wgTitle->getText());
 993
 994                                 if($id || $ip) { # both anons and non-anons have contri list
 995                                         $s .= $sep . $this->userContribsLink();
 996                                 }
 997                                 if( $this->showEmailUser( $id ) ) {
 998                                         $s .= $sep . $this->emailUserLink();
 999                                 }
1000                         }
1001                         if ( $wgTitle->getArticleId() ) {
1002                                 $s .= "\n<br />";
1003                                 if($wgUser->isAllowed('delete')) { $s .= $this->deleteThisPage(); }
1004                                 if($wgUser->isAllowed('protect')) { $s .= $sep . $this->protectThisPage(); }
1005                                 if($wgUser->isAllowed('move')) { $s .= $sep . $this->moveThisPage(); }
1006                         }
1007                         $s .= "<br />\n" . $this->otherLanguages();
1008                 }
1009                 return $s;
1010         }
1011
1012         function pageStats() {
1013                 global $wgOut, $wgLang, $wgArticle, $wgRequest, $wgUser;
1014                 global $wgDisableCounters, $wgMaxCredits, $wgShowCreditsIfMax, $wgTitle, $wgPageShowWatchingUsers;
1015
1016                 $oldid = $wgRequest->getVal( 'oldid' );
1017                 $diff = $wgRequest->getVal( 'diff' );
1018                 if ( ! $wgOut->isArticle() ) { return ''; }
1019                 if ( isset( $oldid ) || isset( $diff ) ) { return ''; }
1020                 if ( 0 == $wgArticle->getID() ) { return ''; }
1021
1022                 $s = '';
1023                 if ( !$wgDisableCounters ) {
1024                         $count = $wgLang->formatNum( $wgArticle->getCount() );
1025                         if ( $count ) {
1026                                 $s = wfMsgExt( 'viewcount', array( 'parseinline' ), $count );
1027                         }
1028                 }
1029
1030                 if (isset($wgMaxCredits) && $wgMaxCredits != 0) {
1031                     require_once('Credits.php');
1032                     $s .= ' ' . getCredits($wgArticle, $wgMaxCredits, $wgShowCreditsIfMax);
1033                 } else {
1034                     $s .= $this->lastModified();
1035                 }
1036
1037                 if ($wgPageShowWatchingUsers && $wgUser->getOption( 'shownumberswatching' )) {
1038                         $dbr =& wfGetDB( DB_SLAVE );
1039                         $watchlist = $dbr->tableName( 'watchlist' );
1040                         $sql = "SELECT COUNT(*) AS n FROM $watchlist
1041                                 WHERE wl_title='" . $dbr->strencode($wgTitle->getDBKey()) .
1042                                 "' AND  wl_namespace=" . $wgTitle->getNamespace() ;
1043                         $res = $dbr->query( $sql, 'Skin::pageStats');
1044                         $x = $dbr->fetchObject( $res );
1045                         $s .= ' ' . wfMsg('number_of_watching_users_pageview', $x->n );
1046                 }
1047
1048                 return $s . ' ' .  $this->getCopyright();
1049         }
1050
1051         function getCopyright( $type = 'detect' ) {
1052                 global $wgRightsPage, $wgRightsUrl, $wgRightsText, $wgRequest;
1053
1054                 if ( $type == 'detect' ) {
1055                         $oldid = $wgRequest->getVal( 'oldid' );
1056                         $diff = $wgRequest->getVal( 'diff' );
1057
1058                         if ( !is_null( $oldid ) && is_null( $diff ) && wfMsgForContent( 'history_copyright' ) !== '-' ) {
1059                                 $type = 'history';
1060                         } else {
1061                                 $type = 'normal';
1062                         }
1063                 }
1064
1065                 if ( $type == 'history' ) {
1066                         $msg = 'history_copyright';
1067                 } else {
1068                         $msg = 'copyright';
1069                 }
1070
1071                 $out = '';
1072                 if( $wgRightsPage ) {
1073                         $link = $this->makeKnownLink( $wgRightsPage, $wgRightsText );
1074                 } elseif( $wgRightsUrl ) {
1075                         $link = $this->makeExternalLink( $wgRightsUrl, $wgRightsText );
1076                 } else {
1077                         # Give up now
1078                         return $out;
1079                 }
1080                 $out .= wfMsgForContent( $msg, $link );
1081                 return $out;
1082         }
1083
1084         function getCopyrightIcon() {
1085                 global $wgRightsUrl, $wgRightsText, $wgRightsIcon, $wgCopyrightIcon;
1086                 $out = '';
1087                 if ( isset( $wgCopyrightIcon ) && $wgCopyrightIcon ) {
1088                         $out = $wgCopyrightIcon;
1089                 } else if ( $wgRightsIcon ) {
1090                         $icon = htmlspecialchars( $wgRightsIcon );
1091                         if ( $wgRightsUrl ) {
1092                                 $url = htmlspecialchars( $wgRightsUrl );
1093                                 $out .= '<a href="'.$url.'">';
1094                         }
1095                         $text = htmlspecialchars( $wgRightsText );
1096                         $out .= "<img src=\"$icon\" alt='$text' />";
1097                         if ( $wgRightsUrl ) {
1098                                 $out .= '</a>';
1099                         }
1100                 }
1101                 return $out;
1102         }
1103
1104         function getPoweredBy() {
1105                 global $wgStylePath;
1106                 $url = htmlspecialchars( "$wgStylePath/common/images/poweredby_mediawiki_88x31.png" );
1107                 $img = '<a href="http://www.mediawiki.org/"><img src="'.$url.'" alt="MediaWiki" /></a>';
1108                 return $img;
1109         }
1110
1111         function lastModified() {
1112                 global $wgLang, $wgArticle, $wgLoadBalancer;
1113
1114                 $timestamp = $wgArticle->getTimestamp();
1115                 if ( $timestamp ) {
1116                         $d = $wgLang->date( $timestamp, true );
1117                         $t = $wgLang->time( $timestamp, true );
1118                         $s = ' ' . wfMsg( 'lastmodifiedat', $d, $t );
1119                 } else {
1120                         $s = '';
1121                 }
1122                 if ( $wgLoadBalancer->getLaggedSlaveMode() ) {
1123                         $s .= ' <strong>' . wfMsg( 'laggedslavemode' ) . '</strong>';
1124                 }
1125                 return $s;
1126         }
1127
1128         function logoText( $align = '' ) {
1129                 if ( '' != $align ) { $a = " align='{$align}'"; }
1130                 else { $a = ''; }
1131
1132                 $mp = wfMsg( 'mainpage' );
1133                 $mptitle = Title::newMainPage();
1134                 $url = ( is_object($mptitle) ? $mptitle->escapeLocalURL() : '' );
1135
1136                 $logourl = $this->getLogo();
1137                 $s = "<a href='{$url}'><img{$a} src='{$logourl}' alt='[{$mp}]' /></a>";
1138                 return $s;
1139         }
1140
1141         /**
1142          * show a drop-down box of special pages
1143          */
1144         function specialPagesList() {
1145                 global $wgUser, $wgContLang, $wgServer, $wgRedirectScript;
1146                 $pages = array_merge( SpecialPage::getRegularPages(), SpecialPage::getRestrictedPages() );
1147                 foreach ( $pages as $name => $page ) {
1148                         $pages[$name] = $page->getDescription();
1149                 }
1150
1151                 $go = wfMsg( 'go' );
1152                 $sp = wfMsg( 'specialpages' );
1153                 $spp = $wgContLang->specialPage( 'Specialpages' );
1154
1155                 $s = '<form id="specialpages" method="get" class="inline" ' .
1156                   'action="' . htmlspecialchars( "{$wgServer}{$wgRedirectScript}" ) . "\">\n";
1157                 $s .= "<select name=\"wpDropdown\">\n";
1158                 $s .= "<option value=\"{$spp}\">{$sp}</option>\n";
1159
1160
1161                 foreach ( $pages as $name => $desc ) {
1162                         $p = $wgContLang->specialPage( $name );
1163                         $s .= "<option value=\"{$p}\">{$desc}</option>\n";
1164                 }
1165                 $s .= "</select>\n";
1166                 $s .= "<input type='submit' value=\"{$go}\" name='redirect' />\n";
1167                 $s .= "</form>\n";
1168                 return $s;
1169         }
1170
1171         function mainPageLink() {
1172                 $s = $this->makeKnownLinkObj( Title::newMainPage(), wfMsg( 'mainpage' ) );
1173                 return $s;
1174         }
1175
1176         function copyrightLink() {
1177                 $s = $this->makeKnownLink( wfMsgForContent( 'copyrightpage' ),
1178                   wfMsg( 'copyrightpagename' ) );
1179                 return $s;
1180         }
1181
1182         function privacyLink() {
1183                 $privacy = wfMsg( 'privacy' );
1184                 if ($privacy == '-') {
1185                         return '';
1186                 } else {
1187                         return $this->makeKnownLink( wfMsgForContent( 'privacypage' ), $privacy);
1188                 }
1189         }
1190
1191         function aboutLink() {
1192                 $s = $this->makeKnownLink( wfMsgForContent( 'aboutpage' ),
1193                   wfMsg( 'aboutsite' ) );
1194                 return $s;
1195         }
1196
1197         function disclaimerLink() {
1198                 $disclaimers = wfMsg( 'disclaimers' );
1199                 if ($disclaimers == '-') {
1200                         return '';
1201                 } else {
1202                         return $this->makeKnownLink( wfMsgForContent( 'disclaimerpage' ),
1203                                                      $disclaimers );
1204                 }
1205         }
1206
1207         function editThisPage() {
1208                 global $wgOut, $wgTitle;
1209
1210                 if ( ! $wgOut->isArticleRelated() ) {
1211                         $s = wfMsg( 'protectedpage' );
1212                 } else {
1213                         if ( $wgTitle->userCanEdit() ) {
1214                                 $t = wfMsg( 'editthispage' );
1215                         } else {
1216                                 $t = wfMsg( 'viewsource' );
1217                         }
1218
1219                         $s = $this->makeKnownLinkObj( $wgTitle, $t, $this->editUrlOptions() );
1220                 }
1221                 return $s;
1222         }
1223
1224         /**
1225          * Return URL options for the 'edit page' link.
1226          * This may include an 'oldid' specifier, if the current page view is such.
1227          *
1228          * @return string
1229          * @private
1230          */
1231         function editUrlOptions() {
1232                 global $wgArticle;
1233
1234                 if( $this->mRevisionId && ! $wgArticle->isCurrent() ) {
1235                         return "action=edit&oldid=" . intval( $this->mRevisionId );
1236                 } else {
1237                         return "action=edit";
1238                 }
1239         }
1240
1241         function deleteThisPage() {
1242                 global $wgUser, $wgTitle, $wgRequest;
1243
1244                 $diff = $wgRequest->getVal( 'diff' );
1245                 if ( $wgTitle->getArticleId() && ( ! $diff ) && $wgUser->isAllowed('delete') ) {
1246                         $t = wfMsg( 'deletethispage' );
1247
1248                         $s = $this->makeKnownLinkObj( $wgTitle, $t, 'action=delete' );
1249                 } else {
1250                         $s = '';
1251                 }
1252                 return $s;
1253         }
1254
1255         function protectThisPage() {
1256                 global $wgUser, $wgTitle, $wgRequest;
1257
1258                 $diff = $wgRequest->getVal( 'diff' );
1259                 if ( $wgTitle->getArticleId() && ( ! $diff ) && $wgUser->isAllowed('protect') ) {
1260                         if ( $wgTitle->isProtected() ) {
1261                                 $t = wfMsg( 'unprotectthispage' );
1262                                 $q = 'action=unprotect';
1263                         } else {
1264                                 $t = wfMsg( 'protectthispage' );
1265                                 $q = 'action=protect';
1266                         }
1267                         $s = $this->makeKnownLinkObj( $wgTitle, $t, $q );
1268                 } else {
1269                         $s = '';
1270                 }
1271                 return $s;
1272         }
1273
1274         function watchThisPage() {
1275                 global $wgOut, $wgTitle;
1276
1277                 if ( $wgOut->isArticleRelated() ) {
1278                         if ( $wgTitle->userIsWatching() ) {
1279                                 $t = wfMsg( 'unwatchthispage' );
1280                                 $q = 'action=unwatch';
1281                         } else {
1282                                 $t = wfMsg( 'watchthispage' );
1283                                 $q = 'action=watch';
1284                         }
1285                         $s = $this->makeKnownLinkObj( $wgTitle, $t, $q );
1286                 } else {
1287                         $s = wfMsg( 'notanarticle' );
1288                 }
1289                 return $s;
1290         }
1291
1292         function moveThisPage() {
1293                 global $wgTitle;
1294
1295                 if ( $wgTitle->userCanMove() ) {
1296                         return $this->makeKnownLinkObj( SpecialPage::getTitleFor( 'Movepage' ),
1297                           wfMsg( 'movethispage' ), 'target=' . $wgTitle->getPrefixedURL() );
1298                 } else {
1299                         // no message if page is protected - would be redundant
1300                         return '';
1301                 }
1302         }
1303
1304         function historyLink() {
1305                 global $wgTitle;
1306
1307                 return $this->makeKnownLinkObj( $wgTitle,
1308                   wfMsg( 'history' ), 'action=history' );
1309         }
1310
1311         function whatLinksHere() {
1312                 global $wgTitle;
1313
1314                 return $this->makeKnownLinkObj(
1315                         SpecialPage::getTitleFor( 'Whatlinkshere', $wgTitle->getPrefixedDBkey() ),
1316                         wfMsg( 'whatlinkshere' ) );
1317         }
1318
1319         function userContribsLink() {
1320                 global $wgTitle;
1321
1322                 return $this->makeKnownLinkObj(
1323                         SpecialPage::getTitleFor( 'Contributions', $wgTitle->getDBkey() ),
1324                         wfMsg( 'contributions' ) );
1325         }
1326
1327         function showEmailUser( $id ) {
1328                 global $wgEnableEmail, $wgEnableUserEmail, $wgUser;
1329                 return $wgEnableEmail &&
1330                        $wgEnableUserEmail &&
1331                        $wgUser->isLoggedIn() && # show only to signed in users
1332                        0 != $id; # we can only email to non-anons ..
1333 #                      '' != $id->getEmail() && # who must have an email address stored ..
1334 #                      0 != $id->getEmailauthenticationtimestamp() && # .. which is authenticated
1335 #                      1 != $wgUser->getOption('disablemail'); # and not disabled
1336         }
1337
1338         function emailUserLink() {
1339                 global $wgTitle;
1340
1341                 return $this->makeKnownLinkObj(
1342                         SpecialPage::getTitleFor( 'Emailuser', $wgTitle->getDBkey() ),
1343                         wfMsg( 'emailuser' ) );
1344         }
1345
1346         function watchPageLinksLink() {
1347                 global $wgOut, $wgTitle;
1348
1349                 if ( ! $wgOut->isArticleRelated() ) {
1350                         return '(' . wfMsg( 'notanarticle' ) . ')';
1351                 } else {
1352                         return $this->makeKnownLinkObj(
1353                                 SpecialPage::getTitleFor( 'Recentchangeslinked', $wgTitle->getPrefixedDBkey() ),
1354                                 wfMsg( 'recentchangeslinked' ) );
1355                 }
1356         }
1357
1358         function trackbackLink() {
1359                 global $wgTitle;
1360
1361                 return "<a href=\"" . $wgTitle->trackbackURL() . "\">"
1362                         . wfMsg('trackbacklink') . "</a>";
1363         }
1364
1365         function otherLanguages() {
1366                 global $wgOut, $wgContLang, $wgHideInterlanguageLinks;
1367
1368                 if ( $wgHideInterlanguageLinks ) {
1369                         return '';
1370                 }
1371
1372                 $a = $wgOut->getLanguageLinks();
1373                 if ( 0 == count( $a ) ) {
1374                         return '';
1375                 }
1376
1377                 $s = wfMsg( 'otherlanguages' ) . ': ';
1378                 $first = true;
1379                 if($wgContLang->isRTL()) $s .= '<span dir="LTR">';
1380                 foreach( $a as $l ) {
1381                         if ( ! $first ) { $s .= ' | '; }
1382                         $first = false;
1383
1384                         $nt = Title::newFromText( $l );
1385                         $url = $nt->escapeFullURL();
1386                         $text = $wgContLang->getLanguageName( $nt->getInterwiki() );
1387
1388                         if ( '' == $text ) { $text = $l; }
1389                         $style = $this->getExternalLinkAttributes( $l, $text );
1390                         $s .= "<a href=\"{$url}\"{$style}>{$text}</a>";
1391                 }
1392                 if($wgContLang->isRTL()) $s .= '</span>';
1393                 return $s;
1394         }
1395
1396         function bugReportsLink() {
1397                 $s = $this->makeKnownLink( wfMsgForContent( 'bugreportspage' ),
1398                   wfMsg( 'bugreports' ) );
1399                 return $s;
1400         }
1401
1402         function dateLink() {
1403                 $t1 = Title::newFromText( gmdate( 'F j' ) );
1404                 $t2 = Title::newFromText( gmdate( 'Y' ) );
1405
1406                 $id = $t1->getArticleID();
1407
1408                 if ( 0 == $id ) {
1409                         $s = $this->makeBrokenLink( $t1->getText() );
1410                 } else {
1411                         $s = $this->makeKnownLink( $t1->getText() );
1412                 }
1413                 $s .= ', ';
1414
1415                 $id = $t2->getArticleID();
1416
1417                 if ( 0 == $id ) {
1418                         $s .= $this->makeBrokenLink( $t2->getText() );
1419                 } else {
1420                         $s .= $this->makeKnownLink( $t2->getText() );
1421                 }
1422                 return $s;
1423         }
1424
1425         function talkLink() {
1426                 global $wgTitle;
1427
1428                 if ( NS_SPECIAL == $wgTitle->getNamespace() ) {
1429                         # No discussion links for special pages
1430                         return '';
1431                 }
1432
1433                 if( $wgTitle->isTalkPage() ) {
1434                         $link = $wgTitle->getSubjectPage();
1435                         switch( $link->getNamespace() ) {
1436                                 case NS_MAIN:
1437                                         $text = wfMsg( 'articlepage' );
1438                                         break;
1439                                 case NS_USER:
1440                                         $text = wfMsg( 'userpage' );
1441                                         break;
1442                                 case NS_PROJECT:
1443                                         $text = wfMsg( 'projectpage' );
1444                                         break;
1445                                 case NS_IMAGE:
1446                                         $text = wfMsg( 'imagepage' );
1447                                         break;
1448                                 case NS_MEDIAWIKI:
1449                                         $text = wfMsg( 'mediawikipage' );
1450                                         break;
1451                                 case NS_TEMPLATE:
1452                                         $text = wfMsg( 'templatepage' );
1453                                         break;
1454                                 case NS_HELP:
1455                                         $text = wfMsg( 'viewhelppage' );
1456                                         break;
1457                                 case NS_CATEGORY:
1458                                         $text = wfMsg( 'categorypage' );
1459                                         break;
1460                                 default:
1461                                         $text = wfMsg( 'articlepage' );
1462                         }
1463                 } else {
1464                         $link = $wgTitle->getTalkPage();
1465                         $text = wfMsg( 'talkpage' );
1466                 }
1467
1468                 $s = $this->makeLinkObj( $link, $text );
1469
1470                 return $s;
1471         }
1472
1473         function commentLink() {
1474                 global $wgTitle, $wgOut;
1475
1476                 if ( $wgTitle->getNamespace() == NS_SPECIAL ) {
1477                         return '';
1478                 }
1479
1480                 # __NEWSECTIONLINK___ changes behaviour here
1481                 # If it's present, the link points to this page, otherwise
1482                 # it points to the talk page
1483                 if( $wgTitle->isTalkPage() ) {
1484                         $title =& $wgTitle;
1485                 } elseif( $wgOut->showNewSectionLink() ) {
1486                         $title =& $wgTitle;
1487                 } else {
1488                         $title =& $wgTitle->getTalkPage();
1489                 }
1490
1491                 return $this->makeKnownLinkObj( $title, wfMsg( 'postcomment' ), 'action=edit&section=new' );
1492         }
1493
1494         /* these are used extensively in SkinTemplate, but also some other places */
1495         static function makeMainPageUrl( $urlaction = '' ) {
1496                 $title = Title::newMainPage();
1497                 self::checkTitle( $title, $name );
1498                 return $title->getLocalURL( $urlaction );
1499         }
1500
1501         static function makeSpecialUrl( $name, $urlaction = '' ) {
1502                 $title = SpecialPage::getTitleFor( $name );
1503                 return $title->getLocalURL( $urlaction );
1504         }
1505
1506         static function makeI18nUrl( $name, $urlaction = '' ) {
1507                 $title = Title::newFromText( wfMsgForContent( $name ) );
1508                 self::checkTitle( $title, $name );
1509                 return $title->getLocalURL( $urlaction );
1510         }
1511
1512         static function makeUrl( $name, $urlaction = '' ) {
1513                 $title = Title::newFromText( $name );
1514                 self::checkTitle( $title, $name );
1515                 return $title->getLocalURL( $urlaction );
1516         }
1517
1518         # If url string starts with http, consider as external URL, else
1519         # internal
1520         static function makeInternalOrExternalUrl( $name ) {
1521                 if ( preg_match( '/^(?:' . wfUrlProtocols() . ')/', $name ) ) {
1522                         return $name;
1523                 } else {
1524                         return self::makeUrl( $name );
1525                 }
1526         }
1527
1528         # this can be passed the NS number as defined in Language.php
1529         static function makeNSUrl( $name, $urlaction = '', $namespace = NS_MAIN ) {
1530                 $title = Title::makeTitleSafe( $namespace, $name );
1531                 self::checkTitle( $title, $name );
1532                 return $title->getLocalURL( $urlaction );
1533         }
1534
1535         /* these return an array with the 'href' and boolean 'exists' */
1536         static function makeUrlDetails( $name, $urlaction = '' ) {
1537                 $title = Title::newFromText( $name );
1538                 self::checkTitle( $title, $name );
1539                 return array(
1540                         'href' => $title->getLocalURL( $urlaction ),
1541                         'exists' => $title->getArticleID() != 0 ? true : false
1542                 );
1543         }
1544
1545         /**
1546          * Make URL details where the article exists (or at least it's convenient to think so)
1547          */
1548         static function makeKnownUrlDetails( $name, $urlaction = '' ) {
1549                 $title = Title::newFromText( $name );
1550                 self::checkTitle( $title, $name );
1551                 return array(
1552                         'href' => $title->getLocalURL( $urlaction ),
1553                         'exists' => true
1554                 );
1555         }
1556
1557         # make sure we have some title to operate on
1558         static function checkTitle( &$title, &$name ) {
1559                 if( !is_object( $title ) ) {
1560                         $title = Title::newFromText( $name );
1561                         if( !is_object( $title ) ) {
1562                                 $title = Title::newFromText( '--error: link target missing--' );
1563                         }
1564                 }
1565         }
1566
1567         /**
1568          * Build an array that represents the sidebar(s), the navigation bar among them
1569          *
1570          * @return array
1571          * @private
1572          */
1573         function buildSidebar() {
1574                 global $parserMemc, $wgEnableSidebarCache;
1575                 global $wgLang, $wgContLang;
1576
1577                 $fname = 'SkinTemplate::buildSidebar';
1578
1579                 wfProfileIn( $fname );
1580
1581                 $key = wfMemcKey( 'sidebar' );
1582                 $cacheSidebar = $wgEnableSidebarCache &&
1583                         ($wgLang->getCode() == $wgContLang->getCode());
1584
1585                 if ($cacheSidebar) {
1586                         $cachedsidebar = $parserMemc->get( $key );
1587                         if ($cachedsidebar!="") {
1588                                 wfProfileOut($fname);
1589                                 return $cachedsidebar;
1590                         }
1591                 }
1592
1593                 $bar = array();
1594                 $lines = explode( "\n", wfMsgForContent( 'sidebar' ) );
1595                 foreach ($lines as $line) {
1596                         if (strpos($line, '*') !== 0)
1597                                 continue;
1598                         if (strpos($line, '**') !== 0) {
1599                                 $line = trim($line, '* ');
1600                                 $heading = $line;
1601                         } else {
1602                                 if (strpos($line, '|') !== false) { // sanity check
1603                                         $line = explode( '|' , trim($line, '* '), 2 );
1604                                         $link = wfMsgForContent( $line[0] );
1605                                         if ($link == '-')
1606                                                 continue;
1607                                         if (wfEmptyMsg($line[1], $text = wfMsg($line[1])))
1608                                                 $text = $line[1];
1609                                         if (wfEmptyMsg($line[0], $link))
1610                                                 $link = $line[0];
1611
1612                                         if ( preg_match( '/^(?:' . wfUrlProtocols() . ')/', $link ) ) {
1613                                                 $href = $link;
1614                                         } else {
1615                                                 $title = Title::newFromText( $link );
1616                                                 if ( $title ) {
1617                                                         $title = $title->fixSpecialName();
1618                                                         $href = $title->getLocalURL();
1619                                                 } else {
1620                                                         $href = 'INVALID-TITLE';
1621                                                 }
1622                                         }
1623
1624                                         $bar[$heading][] = array(
1625                                                 'text' => $text,
1626                                                 'href' => $href,
1627                                                 'id' => 'n-' . strtr($line[1], ' ', '-'),
1628                                                 'active' => false
1629                                         );
1630                                 } else { continue; }
1631                         }
1632                 }
1633                 if ($cacheSidebar)
1634                         $parserMemc->set( $key, $bar, 86400 );
1635                 wfProfileOut( $fname );
1636                 return $bar;
1637         }
1638 }
1639 ?>