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 = $skinDir->read())) {
  50                                 // Skip non-PHP files, hidden files, and '.dep' includes
  51                                 if(preg_match('/^([^.]*)\.php$/',$file, $matches)) {
  52                                         $aSkin = $matches[1];
  53                                         $wgValidSkinNames[strtolower($aSkin)] = $aSkin;
  54                                 }
  55                         }
  56                         $skinDir->close();
  57                         $skinsInitialised = true;
  58                         wfProfileOut( __METHOD__ . '-init' );
  59                 }
  60                 return $wgValidSkinNames;
  61         }
  62
  63         /**
  64          * Normalize a skin preference value to a form that can be loaded.
  65          * If a skin can't be found, it will fall back to the configured
  66          * default (or the old 'Classic' skin if that's broken).
  67          * @param string $key
  68          * @return string
  69          * @static
  70          */
  71         static function normalizeKey( $key ) {
  72                 global $wgDefaultSkin;
  73                 $skinNames = Skin::getSkinNames();
  74
  75                 if( $key == '' ) {
  76                         // Don't return the default immediately;
  77                         // in a misconfiguration we need to fall back.
  78                         $key = $wgDefaultSkin;
  79                 }
  80
  81                 if( isset( $skinNames[$key] ) ) {
  82                         return $key;
  83                 }
  84
  85                 // Older versions of the software used a numeric setting
  86                 // in the user preferences.
  87                 $fallback = array(
  88                         0 => $wgDefaultSkin,
  89                         1 => 'nostalgia',
  90                         2 => 'cologneblue' );
  91
  92                 if( isset( $fallback[$key] ) ){
  93                         $key = $fallback[$key];
  94                 }
  95
  96                 if( isset( $skinNames[$key] ) ) {
  97                         return $key;
  98                 } else {
  99                         // The old built-in skin
 100                         return 'standard';
 101                 }
 102         }
 103
 104         /**
 105          * Factory method for loading a skin of a given type
 106          * @param string $key 'monobook', 'standard', etc
 107          * @return Skin
 108          * @static
 109          */
 110         static function &newFromKey( $key ) {
 111                 global $wgStyleDirectory;
 112
 113                 $key = Skin::normalizeKey( $key );
 114
 115                 $skinNames = Skin::getSkinNames();
 116                 $skinName = $skinNames[$key];
 117
 118                 # Grab the skin class and initialise it.
 119                 wfSuppressWarnings();
 120                 // Preload base classes to work around APC/PHP5 bug
 121                 include_once( "{$wgStyleDirectory}/{$skinName}.deps.php" );
 122                 wfRestoreWarnings();
 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?1';
 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;
 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                 $this->addMetadataLinks($out);
 170
 171                 $this->mRevisionId = $out->mRevisionId;
 172
 173                 $this->preloadExistence();
 174
 175                 wfProfileOut( $fname );
 176         }
 177
 178         /**
 179          * Preload the existence of three commonly-requested pages in a single query
 180          */
 181         function preloadExistence() {
 182                 global $wgUser, $wgTitle;
 183
 184                 if ( $wgTitle->isTalkPage() ) {
 185                         $otherTab = $wgTitle->getSubjectPage();
 186                 } else {
 187                         $otherTab = $wgTitle->getTalkPage();
 188                 }
 189                 $lb = new LinkBatch( array(
 190                         $wgUser->getUserPage(),
 191                         $wgUser->getTalkPage(),
 192                         $otherTab
 193                 ));
 194                 $lb->execute();
 195         }
 196
 197         function addMetadataLinks( &$out ) {
 198                 global $wgTitle, $wgEnableDublinCoreRdf, $wgEnableCreativeCommonsRdf;
 199                 global $wgRightsPage, $wgRightsUrl;
 200
 201                 if( $out->isArticleRelated() ) {
 202                         # note: buggy CC software only reads first "meta" link
 203                         if( $wgEnableCreativeCommonsRdf ) {
 204                                 $out->addMetadataLink( array(
 205                                         'title' => 'Creative Commons',
 206                                         'type' => 'application/rdf+xml',
 207                                         'href' => $wgTitle->getLocalURL( 'action=creativecommons') ) );
 208                         }
 209                         if( $wgEnableDublinCoreRdf ) {
 210                                 $out->addMetadataLink( array(
 211                                         'title' => 'Dublin Core',
 212                                         'type' => 'application/rdf+xml',
 213                                         'href' => $wgTitle->getLocalURL( 'action=dublincore' ) ) );
 214                         }
 215                 }
 216                 $copyright = '';
 217                 if( $wgRightsPage ) {
 218                         $copy = Title::newFromText( $wgRightsPage );
 219                         if( $copy ) {
 220                                 $copyright = $copy->getLocalURL();
 221                         }
 222                 }
 223                 if( !$copyright && $wgRightsUrl ) {
 224                         $copyright = $wgRightsUrl;
 225                 }
 226                 if( $copyright ) {
 227                         $out->addLink( array(
 228                                 'rel' => 'copyright',
 229                                 'href' => $copyright ) );
 230                 }
 231         }
 232
 233         function outputPage( &$out ) {
 234                 global $wgDebugComments;
 235
 236                 wfProfileIn( 'Skin::outputPage' );
 237                 $this->initPage( $out );
 238
 239                 $out->out( $out->headElement() );
 240
 241                 $out->out( "\n<body" );
 242                 $ops = $this->getBodyOptions();
 243                 foreach ( $ops as $name => $val ) {
 244                         $out->out( " $name='$val'" );
 245                 }
 246                 $out->out( ">\n" );
 247                 if ( $wgDebugComments ) {
 248                         $out->out( "<!-- Wiki debugging output:\n" .
 249                           $out->mDebugtext . "-->\n" );
 250                 }
 251
 252                 $out->out( $this->beforeContent() );
 253
 254                 $out->out( $out->mBodytext . "\n" );
 255
 256                 $out->out( $this->afterContent() );
 257
 258                 $out->out( $this->bottomScripts() );
 259
 260                 $out->out( $out->reportTime() );
 261
 262                 $out->out( "\n</body></html>" );
 263         }
 264
 265         /*static*/ function makeGlobalVariablesScript( $data ) {
 266                 $r = '<script type= "' . $data['jsmimetype'] . '">
 267                         var skin = "' . Xml::escapeJsString( $data['skinname'] ) . '";
 268                         var stylepath = "' . Xml::escapeJsString( $data['stylepath'] ) . '";
 269
 270                         var wgArticlePath = "' . Xml::escapeJsString( $data['articlepath'] ) . '";
 271                         var wgScriptPath = "' . Xml::escapeJsString( $data['scriptpath'] ) . '";
 272                         var wgServer = "' . Xml::escapeJsString( $data['serverurl'] ) . '";
 273
 274                         var wgCanonicalNamespace = "' . Xml::escapeJsString( $data['nscanonical'] ) . '";
 275                         var wgPageName = "' . Xml::escapeJsString( $data['titleprefixeddbkey'] ) . '";
 276                         var wgTitle = "' . Xml::escapeJsString( $data['titletext'] ) . '";
 277                         var wgArticleId = ' . (int)$data['articleid'] . ';
 278
 279                         var wgUserName = ' . ( $data['username'] == NULL ? 'null' : ( '"' . Xml::escapeJsString( $data['username'] ) . '"' ) ) . ';
 280                         var wgUserLanguage = "' . Xml::escapeJsString( $data['userlang'] ) . '";
 281                         var wgContentLanguage = "' . Xml::escapeJsString( $data['lang'] ) . '";
 282                 </script>
 283                 ';
 284
 285                 return $r;
 286         }
 287
 288         function getHeadScripts() {
 289                 global $wgStylePath, $wgUser, $wgAllowUserJs, $wgJsMimeType;
 290                 global $wgArticlePath, $wgScriptPath, $wgServer, $wgContLang, $wgLang;
 291                 global $wgTitle, $wgCanonicalNamespaceNames;
 292
 293                 $nsname = @$wgCanonicalNamespaceNames[ $wgTitle->getNamespace() ];
 294                 if ( $nsname === NULL ) $nsname = $wgTitle->getNsText();
 295
 296                 $vars = array(
 297                         'jsmimetype' => $wgJsMimeType,
 298                         'skinname' => $this->getSkinName(),
 299                         'stylepath' => $wgStylePath,
 300                         'articlepath' => $wgArticlePath,
 301                         'scriptpath' => $wgScriptPath,
 302                         'serverurl' => $wgServer,
 303                         'nscanonical' => $nsname,
 304                         'titleprefixeddbkey' => $wgTitle->getPrefixedDBKey(),
 305                         'titletext' => $wgTitle->getText(),
 306                         'articleid' => $wgTitle->getArticleId(),
 307                         'username' => $wgUser->isAnon() ? NULL : $wgUser->getName(),
 308                         'userlang' => $wgLang->getCode(),
 309                         'lang' => $wgContLang->getCode(),
 310                 );
 311
 312                 $r = Skin::makeGlobalVariablesScript( $vars );
 313
 314                 $r .= "<script type=\"{$wgJsMimeType}\" src=\"{$wgStylePath}/common/wikibits.js\"></script>\n";
 315                 if( $wgAllowUserJs && $wgUser->isLoggedIn() ) {
 316                         $userpage = $wgUser->getUserPage();
 317                         $userjs = htmlspecialchars( $this->makeUrl(
 318                                 $userpage->getPrefixedText().'/'.$this->getSkinName().'.js',
 319                                 'action=raw&ctype='.$wgJsMimeType));
 320                         $r .= '<script type="'.$wgJsMimeType.'" src="'.$userjs."\"></script>\n";
 321                 }
 322                 return $r;
 323         }
 324
 325         /**
 326          * To make it harder for someone to slip a user a fake
 327          * user-JavaScript or user-CSS preview, a random token
 328          * is associated with the login session. If it's not
 329          * passed back with the preview request, we won't render
 330          * the code.
 331          *
 332          * @param string $action
 333          * @return bool
 334          * @private
 335          */
 336         function userCanPreview( $action ) {
 337                 global $wgTitle, $wgRequest, $wgUser;
 338
 339                 if( $action != 'submit' )
 340                         return false;
 341                 if( !$wgRequest->wasPosted() )
 342                         return false;
 343                 if( !$wgTitle->userCanEditCssJsSubpage() )
 344                         return false;
 345                 return $wgUser->matchEditToken(
 346                         $wgRequest->getVal( 'wpEditToken' ) );
 347         }
 348
 349         # get the user/site-specific stylesheet, SkinTemplate loads via RawPage.php (settings are cached that way)
 350         function getUserStylesheet() {
 351                 global $wgStylePath, $wgRequest, $wgContLang, $wgSquidMaxage;
 352                 $sheet = $this->getStylesheet();
 353                 $action = $wgRequest->getText('action');
 354                 $s = "@import \"$wgStylePath/$sheet\";\n";
 355                 if($wgContLang->isRTL()) $s .= "@import \"$wgStylePath/common/common_rtl.css\";\n";
 356
 357                 $query = "action=raw&ctype=text/css&smaxage=$wgSquidMaxage";
 358                 $s .= '@import "' . $this->makeNSUrl( 'Common.css', $query, NS_MEDIAWIKI ) . "\";\n" .
 359                         '@import "'.$this->makeNSUrl( ucfirst( $this->getSkinName() . '.css' ), $query, NS_MEDIAWIKI ) . "\";\n";
 360
 361                 $s .= $this->doGetUserStyles();
 362                 return $s."\n";
 363         }
 364
 365         /**
 366          * placeholder, returns generated js in monobook
 367          */
 368         function getUserJs() { return; }
 369
 370         /**
 371          * Return html code that include User stylesheets
 372          */
 373         function getUserStyles() {
 374                 $s = "<style type='text/css'>\n";
 375                 $s .= "/*/*/ /*<![CDATA[*/\n"; # <-- Hide the styles from Netscape 4 without hiding them from IE/Mac
 376                 $s .= $this->getUserStylesheet();
 377                 $s .= "/*]]>*/ /* */\n";
 378                 $s .= "</style>\n";
 379                 return $s;
 380         }
 381
 382         /**
 383          * Some styles that are set by user through the user settings interface.
 384          */
 385         function doGetUserStyles() {
 386                 global $wgUser, $wgUser, $wgRequest, $wgTitle, $wgAllowUserCss;
 387
 388                 $s = '';
 389
 390                 if( $wgAllowUserCss && $wgUser->isLoggedIn() ) { # logged in
 391                         if($wgTitle->isCssSubpage() && $this->userCanPreview( $wgRequest->getText( 'action' ) ) ) {
 392                                 $s .= $wgRequest->getText('wpTextbox1');
 393                         } else {
 394                                 $userpage = $wgUser->getUserPage();
 395                                 $s.= '@import "'.$this->makeUrl(
 396                                         $userpage->getPrefixedText().'/'.$this->getSkinName().'.css',
 397                                         'action=raw&ctype=text/css').'";'."\n";
 398                         }
 399                 }
 400
 401                 return $s . $this->reallyDoGetUserStyles();
 402         }
 403
 404         function reallyDoGetUserStyles() {
 405                 global $wgUser;
 406                 $s = '';
 407                 if (($undopt = $wgUser->getOption("underline")) != 2) {
 408                         $underline = $undopt ? 'underline' : 'none';
 409                         $s .= "a { text-decoration: $underline; }\n";
 410                 }
 411                 if( $wgUser->getOption( 'highlightbroken' ) ) {
 412                         $s .= "a.new, #quickbar a.new { color: #CC2200; }\n";
 413                 } else {
 414                         $s .= <<<END
 415 a.new, #quickbar a.new,
 416 a.stub, #quickbar a.stub {
 417         color: inherit;
 418         text-decoration: inherit;
 419 }
 420 a.new:after, #quickbar a.new:after {
 421         content: "?";
 422         color: #CC2200;
 423         text-decoration: $underline;
 424 }
 425 a.stub:after, #quickbar a.stub:after {
 426         content: "!";
 427         color: #772233;
 428         text-decoration: $underline;
 429 }
 430 END;
 431                 }
 432                 if( $wgUser->getOption( 'justify' ) ) {
 433                         $s .= "#article, #bodyContent { text-align: justify; }\n";
 434                 }
 435                 if( !$wgUser->getOption( 'showtoc' ) ) {
 436                         $s .= "#toc { display: none; }\n";
 437                 }
 438                 if( !$wgUser->getOption( 'editsection' ) ) {
 439                         $s .= ".editsection { display: none; }\n";
 440                 }
 441                 return $s;
 442         }
 443
 444         function getBodyOptions() {
 445                 global $wgUser, $wgTitle, $wgOut, $wgRequest;
 446
 447                 extract( $wgRequest->getValues( 'oldid', 'redirect', 'diff' ) );
 448
 449                 if ( 0 != $wgTitle->getNamespace() ) {
 450                         $a = array( 'bgcolor' => '#ffffec' );
 451                 }
 452                 else $a = array( 'bgcolor' => '#FFFFFF' );
 453                 if($wgOut->isArticle() && $wgUser->getOption('editondblclick') &&
 454                   $wgTitle->userCanEdit() ) {
 455                         $t = wfMsg( 'editthispage' );
 456                         $s = $wgTitle->getFullURL( $this->editUrlOptions() );
 457                         $s = 'document.location = "' .wfEscapeJSString( $s ) .'";';
 458                         $a += array ('ondblclick' => $s);
 459
 460                 }
 461                 $a['onload'] = $wgOut->getOnloadHandler();
 462                 if( $wgUser->getOption( 'editsectiononrightclick' ) ) {
 463                         if( $a['onload'] != '' ) {
 464                                 $a['onload'] .= ';';
 465                         }
 466                         $a['onload'] .= 'setupRightClickEdit()';
 467                 }
 468                 return $a;
 469         }
 470
 471         /**
 472          * URL to the logo
 473          */
 474         function getLogo() {
 475                 global $wgLogo;
 476                 return $wgLogo;
 477         }
 478
 479         /**
 480          * This will be called immediately after the <body> tag.  Split into
 481          * two functions to make it easier to subclass.
 482          */
 483         function beforeContent() {
 484                 return $this->doBeforeContent();
 485         }
 486
 487         function doBeforeContent() {
 488                 global $wgContLang;
 489                 $fname = 'Skin::doBeforeContent';
 490                 wfProfileIn( $fname );
 491
 492                 $s = '';
 493                 $qb = $this->qbSetting();
 494
 495                 if( $langlinks = $this->otherLanguages() ) {
 496                         $rows = 2;
 497                         $borderhack = '';
 498                 } else {
 499                         $rows = 1;
 500                         $langlinks = false;
 501                         $borderhack = 'class="top"';
 502                 }
 503
 504                 $s .= "\n<div id='content'>\n<div id='topbar'>\n" .
 505                   "<table border='0' cellspacing='0' width='98%'>\n<tr>\n";
 506
 507                 $shove = ($qb != 0);
 508                 $left = ($qb == 1 || $qb == 3);
 509                 if($wgContLang->isRTL()) $left = !$left;
 510
 511                 if ( !$shove ) {
 512                         $s .= "<td class='top' align='left' valign='top' rowspan='{$rows}'>\n" .
 513                           $this->logoText() . '</td>';
 514                 } elseif( $left ) {
 515                         $s .= $this->getQuickbarCompensator( $rows );
 516                 }
 517                 $l = $wgContLang->isRTL() ? 'right' : 'left';
 518                 $s .= "<td {$borderhack} align='$l' valign='top'>\n";
 519
 520                 $s .= $this->topLinks() ;
 521                 $s .= "<p class='subtitle'>" . $this->pageTitleLinks() . "</p>\n";
 522
 523                 $r = $wgContLang->isRTL() ? "left" : "right";
 524                 $s .= "</td>\n<td {$borderhack} valign='top' align='$r' nowrap='nowrap'>";
 525                 $s .= $this->nameAndLogin();
 526                 $s .= "\n<br />" . $this->searchForm() . "</td>";
 527
 528                 if ( $langlinks ) {
 529                         $s .= "</tr>\n<tr>\n<td class='top' colspan=\"2\">$langlinks</td>\n";
 530                 }
 531
 532                 if ( $shove && !$left ) { # Right
 533                         $s .= $this->getQuickbarCompensator( $rows );
 534                 }
 535                 $s .= "</tr>\n</table>\n</div>\n";
 536                 $s .= "\n<div id='article'>\n";
 537
 538                 $notice = wfGetSiteNotice();
 539                 if( $notice ) {
 540                         $s .= "\n<div id='siteNotice'>$notice</div>\n";
 541                 }
 542                 $s .= $this->pageTitle();
 543                 $s .= $this->pageSubtitle() ;
 544                 $s .= $this->getCategories();
 545                 wfProfileOut( $fname );
 546                 return $s;
 547         }
 548
 549
 550         function getCategoryLinks () {
 551                 global $wgOut, $wgTitle, $wgUseCategoryBrowser;
 552                 global $wgContLang;
 553
 554                 if( count( $wgOut->mCategoryLinks ) == 0 ) return '';
 555
 556                 # Separator
 557                 $sep = wfMsgHtml( 'catseparator' );
 558
 559                 // Use Unicode bidi embedding override characters,
 560                 // to make sure links don't smash each other up in ugly ways.
 561                 $dir = $wgContLang->isRTL() ? 'rtl' : 'ltr';
 562                 $embed = "<span dir='$dir'>";
 563                 $pop = '</span>';
 564                 $t = $embed . implode ( "{$pop} {$sep} {$embed}" , $wgOut->mCategoryLinks ) . $pop;
 565
 566                 $msg = wfMsgExt('categories', array('parsemag', 'escape'), count( $wgOut->mCategoryLinks ));
 567                 $s = $this->makeKnownLinkObj( Title::makeTitle( NS_SPECIAL, 'Categories' ),
 568                         $msg, 'article=' . urlencode( $wgTitle->getPrefixedDBkey() ) )
 569                         . ': ' . $t;
 570
 571                 # optional 'dmoz-like' category browser. Will be shown under the list
 572                 # of categories an article belong to
 573                 if($wgUseCategoryBrowser) {
 574                         $s .= '<br /><hr />';
 575
 576                         # get a big array of the parents tree
 577                         $parenttree = $wgTitle->getParentCategoryTree();
 578                         # Skin object passed by reference cause it can not be
 579                         # accessed under the method subfunction drawCategoryBrowser
 580                         $tempout = explode("\n", Skin::drawCategoryBrowser($parenttree, $this) );
 581                         # Clean out bogus first entry and sort them
 582                         unset($tempout[0]);
 583                         asort($tempout);
 584                         # Output one per line
 585                         $s .= implode("<br />\n", $tempout);
 586                 }
 587
 588                 return $s;
 589         }
 590
 591         /** Render the array as a serie of links.
 592          * @param $tree Array: categories tree returned by Title::getParentCategoryTree
 593          * @param &skin Object: skin passed by reference
 594          * @return String separated by &gt;, terminate with "\n"
 595          */
 596         function drawCategoryBrowser($tree, &$skin) {
 597                 $return = '';
 598                 foreach ($tree as $element => $parent) {
 599                         if (empty($parent)) {
 600                                 # element start a new list
 601                                 $return .= "\n";
 602                         } else {
 603                                 # grab the others elements
 604                                 $return .= Skin::drawCategoryBrowser($parent, $skin) . ' &gt; ';
 605                         }
 606                         # add our current element to the list
 607                         $eltitle = Title::NewFromText($element);
 608                         $return .=  $skin->makeLinkObj( $eltitle, $eltitle->getText() ) ;
 609                 }
 610                 return $return;
 611         }
 612
 613         function getCategories() {
 614                 $catlinks=$this->getCategoryLinks();
 615                 if(!empty($catlinks)) {
 616                         return "<p class='catlinks'>{$catlinks}</p>";
 617                 }
 618         }
 619
 620         function getQuickbarCompensator( $rows = 1 ) {
 621                 return "<td width='152' rowspan='{$rows}'>&nbsp;</td>";
 622         }
 623
 624         /**
 625          * This gets called shortly before the \</body\> tag.
 626          * @return String HTML to be put before \</body\>
 627          */
 628         function afterContent() {
 629                 $printfooter = "<div class=\"printfooter\">\n" . $this->printFooter() . "</div>\n";
 630                 return $printfooter . $this->doAfterContent();
 631         }
 632
 633         /**
 634          * This gets called shortly before the \</body\> tag.
 635          * @return String HTML-wrapped JS code to be put before \</body\>
 636          */
 637         function bottomScripts() {
 638                 global $wgJsMimeType;
 639                 return "\n\t\t<script type=\"$wgJsMimeType\">if (window.runOnloadHook) runOnloadHook();</script>\n";
 640         }
 641
 642         /** @return string Retrievied from HTML text */
 643         function printSource() {
 644                 global $wgTitle;
 645                 $url = htmlspecialchars( $wgTitle->getFullURL() );
 646                 return wfMsg( 'retrievedfrom', '<a href="'.$url.'">'.$url.'</a>' );
 647         }
 648
 649         function printFooter() {
 650                 return "<p>" .  $this->printSource() .
 651                         "</p>\n\n<p>" . $this->pageStats() . "</p>\n";
 652         }
 653
 654         /** overloaded by derived classes */
 655         function doAfterContent() { }
 656
 657         function pageTitleLinks() {
 658                 global $wgOut, $wgTitle, $wgUser, $wgRequest;
 659
 660                 extract( $wgRequest->getValues( 'oldid', 'diff' ) );
 661                 $action = $wgRequest->getText( 'action' );
 662
 663                 $s = $this->printableLink();
 664                 $disclaimer = $this->disclaimerLink(); # may be empty
 665                 if( $disclaimer ) {
 666                         $s .= ' | ' . $disclaimer;
 667                 }
 668                 $privacy = $this->privacyLink(); # may be empty too
 669                 if( $privacy ) {
 670                         $s .= ' | ' . $privacy;
 671                 }
 672
 673                 if ( $wgOut->isArticleRelated() ) {
 674                         if ( $wgTitle->getNamespace() == NS_IMAGE ) {
 675                                 $name = $wgTitle->getDBkey();
 676                                 $image = new Image( $wgTitle );
 677                                 if( $image->exists() ) {
 678                                         $link = htmlspecialchars( $image->getURL() );
 679                                         $style = $this->getInternalLinkAttributes( $link, $name );
 680                                         $s .= " | <a href=\"{$link}\"{$style}>{$name}</a>";
 681                                 }
 682                         }
 683                 }
 684                 if ( 'history' == $action || isset( $diff ) || isset( $oldid ) ) {
 685                         $s .= ' | ' . $this->makeKnownLinkObj( $wgTitle,
 686                                         wfMsg( 'currentrev' ) );
 687                 }
 688
 689                 if ( $wgUser->getNewtalk() ) {
 690                         # do not show "You have new messages" text when we are viewing our
 691                         # own talk page
 692                         if( !$wgTitle->equals( $wgUser->getTalkPage() ) ) {
 693                                 $tl = $this->makeKnownLinkObj( $wgUser->getTalkPage(), wfMsgHtml( 'newmessageslink' ), 'redirect=no' );
 694                                 $dl = $this->makeKnownLinkObj( $wgUser->getTalkPage(), wfMsgHtml( 'newmessagesdifflink' ), 'diff=cur' );
 695                                 $s.= ' | <strong>'. wfMsg( 'youhavenewmessages', $tl, $dl ) . '</strong>';
 696                                 # disable caching
 697                                 $wgOut->setSquidMaxage(0);
 698                                 $wgOut->enableClientCache(false);
 699                         }
 700                 }
 701
 702                 $undelete = $this->getUndeleteLink();
 703                 if( !empty( $undelete ) ) {
 704                         $s .= ' | '.$undelete;
 705                 }
 706                 return $s;
 707         }
 708
 709         function getUndeleteLink() {
 710                 global $wgUser, $wgTitle, $wgContLang, $action;
 711                 if(     $wgUser->isAllowed( 'deletedhistory' ) &&
 712                         (($wgTitle->getArticleId() == 0) || ($action == "history")) &&
 713                         ($n = $wgTitle->isDeleted() ) )
 714                 {
 715                         if ( $wgUser->isAllowed( 'delete' ) ) {
 716                                 $msg = 'thisisdeleted';
 717                         } else {
 718                                 $msg = 'viewdeleted';
 719                         }
 720                         return wfMsg( $msg,
 721                                 $this->makeKnownLink(
 722                                         $wgContLang->SpecialPage( 'Undelete/' . $wgTitle->getPrefixedDBkey() ),
 723                                         wfMsgExt( 'restorelink', array( 'parsemag', 'escape' ), $n ) ) );
 724                 }
 725                 return '';
 726         }
 727
 728         function printableLink() {
 729                 global $wgOut, $wgFeedClasses, $wgRequest;
 730
 731                 $baseurl = $_SERVER['REQUEST_URI'];
 732                 if( strpos( '?', $baseurl ) == false ) {
 733                         $baseurl .= '?';
 734                 } else {
 735                         $baseurl .= '&';
 736                 }
 737                 $baseurl = htmlspecialchars( $baseurl );
 738                 $printurl = $wgRequest->escapeAppendQuery( 'printable=yes' );
 739
 740                 $s = "<a href=\"$printurl\">" . wfMsg( 'printableversion' ) . '</a>';
 741                 if( $wgOut->isSyndicated() ) {
 742                         foreach( $wgFeedClasses as $format => $class ) {
 743                                 $feedurl = $wgRequest->escapeAppendQuery( "feed=$format" );
 744                                 $s .= " | <a href=\"$feedurl\">{$format}</a>";
 745                         }
 746                 }
 747                 return $s;
 748         }
 749
 750         function pageTitle() {
 751                 global $wgOut;
 752                 $s = '<h1 class="pagetitle">' . htmlspecialchars( $wgOut->getPageTitle() ) . '</h1>';
 753                 return $s;
 754         }
 755
 756         function pageSubtitle() {
 757                 global $wgOut;
 758
 759                 $sub = $wgOut->getSubtitle();
 760                 if ( '' == $sub ) {
 761                         global $wgExtraSubtitle;
 762                         $sub = wfMsg( 'tagline' ) . $wgExtraSubtitle;
 763                 }
 764                 $subpages = $this->subPageSubtitle();
 765                 $sub .= !empty($subpages)?"</p><p class='subpages'>$subpages":'';
 766                 $s = "<p class='subtitle'>{$sub}</p>\n";
 767                 return $s;
 768         }
 769
 770         function subPageSubtitle() {
 771                 global $wgOut,$wgTitle,$wgNamespacesWithSubpages;
 772                 $subpages = '';
 773                 if($wgOut->isArticle() && !empty($wgNamespacesWithSubpages[$wgTitle->getNamespace()])) {
 774                         $ptext=$wgTitle->getPrefixedText();
 775                         if(preg_match('/\//',$ptext)) {
 776                                 $links = explode('/',$ptext);
 777                                 $c = 0;
 778                                 $growinglink = '';
 779                                 foreach($links as $link) {
 780                                         $c++;
 781                                         if ($c<count($links)) {
 782                                                 $growinglink .= $link;
 783                                                 $getlink = $this->makeLink( $growinglink, htmlspecialchars( $link ) );
 784                                                 if(preg_match('/class="new"/i',$getlink)) { break; } # this is a hack, but it saves time
 785                                                 if ($c>1) {
 786                                                         $subpages .= ' | ';
 787                                                 } else  {
 788                                                         $subpages .= '&lt; ';
 789                                                 }
 790                                                 $subpages .= $getlink;
 791                                                 $growinglink .= '/';
 792                                         }
 793                                 }
 794                         }
 795                 }
 796                 return $subpages;
 797         }
 798
 799         function nameAndLogin() {
 800                 global $wgUser, $wgTitle, $wgLang, $wgContLang, $wgShowIPinHeader;
 801
 802                 $li = $wgContLang->specialPage( 'Userlogin' );
 803                 $lo = $wgContLang->specialPage( 'Userlogout' );
 804
 805                 $s = '';
 806                 if ( $wgUser->isAnon() ) {
 807                         if( $wgShowIPinHeader && isset( $_COOKIE[ini_get('session.name')] ) ) {
 808                                 $n = wfGetIP();
 809
 810                                 $tl = $this->makeKnownLinkObj( $wgUser->getTalkPage(),
 811                                   $wgLang->getNsText( NS_TALK ) );
 812
 813                                 $s .= $n . ' ('.$tl.')';
 814                         } else {
 815                                 $s .= wfMsg('notloggedin');
 816                         }
 817
 818                         $rt = $wgTitle->getPrefixedURL();
 819                         if ( 0 == strcasecmp( urlencode( $lo ), $rt ) ) {
 820                                 $q = '';
 821                         } else { $q = "returnto={$rt}"; }
 822
 823                         $s .= "\n<br />" . $this->makeKnownLinkObj(
 824                                 Title::makeTitle( NS_SPECIAL, 'Userlogin' ),
 825                                 wfMsg( 'login' ), $q );
 826                 } else {
 827                         $n = $wgUser->getName();
 828                         $rt = $wgTitle->getPrefixedURL();
 829                         $tl = $this->makeKnownLinkObj( $wgUser->getTalkPage(),
 830                           $wgLang->getNsText( NS_TALK ) );
 831
 832                         $tl = " ({$tl})";
 833
 834                         $s .= $this->makeKnownLinkObj( $wgUser->getUserPage(),
 835                           $n ) . "{$tl}<br />" .
 836                           $this->makeKnownLinkObj( Title::makeTitle( NS_SPECIAL, 'Userlogout' ), wfMsg( 'logout' ),
 837                           "returnto={$rt}" ) . ' | ' .
 838                           $this->specialLink( 'preferences' );
 839                 }
 840                 $s .= ' | ' . $this->makeKnownLink( wfMsgForContent( 'helppage' ),
 841                   wfMsg( 'help' ) );
 842
 843                 return $s;
 844         }
 845
 846         function getSearchLink() {
 847                 $searchPage =& Title::makeTitle( NS_SPECIAL, 'Search' );
 848                 return $searchPage->getLocalURL();
 849         }
 850
 851         function escapeSearchLink() {
 852                 return htmlspecialchars( $this->getSearchLink() );
 853         }
 854
 855         function searchForm() {
 856                 global $wgRequest;
 857                 $search = $wgRequest->getText( 'search' );
 858
 859                 $s = '<form name="search" class="inline" method="post" action="'
 860                   . $this->escapeSearchLink() . "\">\n"
 861                   . '<input type="text" name="search" size="19" value="'
 862                   . htmlspecialchars(substr($search,0,256)) . "\" />\n"
 863                   . '<input type="submit" name="go" value="' . wfMsg ('go') . '" />&nbsp;'
 864                   . '<input type="submit" name="fulltext" value="' . wfMsg ('searchbutton') . "\" />\n</form>";
 865
 866                 return $s;
 867         }
 868
 869         function topLinks() {
 870                 global $wgOut;
 871                 $sep = " |\n";
 872
 873                 $s = $this->mainPageLink() . $sep
 874                   . $this->specialLink( 'recentchanges' );
 875
 876                 if ( $wgOut->isArticleRelated() ) {
 877                         $s .=  $sep . $this->editThisPage()
 878                           . $sep . $this->historyLink();
 879                 }
 880                 # Many people don't like this dropdown box
 881                 #$s .= $sep . $this->specialPagesList();
 882
 883                 /* show links to different language variants */
 884                 global $wgDisableLangConversion, $wgContLang, $wgTitle;
 885                 $variants = $wgContLang->getVariants();
 886                 if( !$wgDisableLangConversion && sizeof( $variants ) > 1 ) {
 887                         foreach( $variants as $code ) {
 888                                 $varname = $wgContLang->getVariantname( $code );
 889                                 if( $varname == 'disable' )
 890                                         continue;
 891                                 $s .= ' | <a href="' . $wgTitle->getLocalUrl( 'variant=' . $code ) . '">' . $varname . '</a>';
 892                         }
 893                 }
 894
 895                 return $s;
 896         }
 897
 898         function bottomLinks() {
 899                 global $wgOut, $wgUser, $wgTitle, $wgUseTrackbacks;
 900                 $sep = " |\n";
 901
 902                 $s = '';
 903                 if ( $wgOut->isArticleRelated() ) {
 904                         $s .= '<strong>' . $this->editThisPage() . '</strong>';
 905                         if ( $wgUser->isLoggedIn() ) {
 906                                 $s .= $sep . $this->watchThisPage();
 907                         }
 908                         $s .= $sep . $this->talkLink()
 909                           . $sep . $this->historyLink()
 910                           . $sep . $this->whatLinksHere()
 911                           . $sep . $this->watchPageLinksLink();
 912
 913                         if ($wgUseTrackbacks)
 914                                 $s .= $sep . $this->trackbackLink();
 915
 916                         if ( $wgTitle->getNamespace() == NS_USER
 917                             || $wgTitle->getNamespace() == NS_USER_TALK )
 918
 919                         {
 920                                 $id=User::idFromName($wgTitle->getText());
 921                                 $ip=User::isIP($wgTitle->getText());
 922
 923                                 if($id || $ip) { # both anons and non-anons have contri list
 924                                         $s .= $sep . $this->userContribsLink();
 925                                 }
 926                                 if( $this->showEmailUser( $id ) ) {
 927                                         $s .= $sep . $this->emailUserLink();
 928                                 }
 929                         }
 930                         if ( $wgTitle->getArticleId() ) {
 931                                 $s .= "\n<br />";
 932                                 if($wgUser->isAllowed('delete')) { $s .= $this->deleteThisPage(); }
 933                                 if($wgUser->isAllowed('protect')) { $s .= $sep . $this->protectThisPage(); }
 934                                 if($wgUser->isAllowed('move')) { $s .= $sep . $this->moveThisPage(); }
 935                         }
 936                         $s .= "<br />\n" . $this->otherLanguages();
 937                 }
 938                 return $s;
 939         }
 940
 941         function pageStats() {
 942                 global $wgOut, $wgLang, $wgArticle, $wgRequest, $wgUser;
 943                 global $wgDisableCounters, $wgMaxCredits, $wgShowCreditsIfMax, $wgTitle, $wgPageShowWatchingUsers;
 944
 945                 extract( $wgRequest->getValues( 'oldid', 'diff' ) );
 946                 if ( ! $wgOut->isArticle() ) { return ''; }
 947                 if ( isset( $oldid ) || isset( $diff ) ) { return ''; }
 948                 if ( 0 == $wgArticle->getID() ) { return ''; }
 949
 950                 $s = '';
 951                 if ( !$wgDisableCounters ) {
 952                         $count = $wgLang->formatNum( $wgArticle->getCount() );
 953                         if ( $count ) {
 954                                 $s = wfMsgExt( 'viewcount', array( 'parseinline' ), $count );
 955                         }
 956                 }
 957
 958                 if (isset($wgMaxCredits) && $wgMaxCredits != 0) {
 959                     require_once('Credits.php');
 960                     $s .= ' ' . getCredits($wgArticle, $wgMaxCredits, $wgShowCreditsIfMax);
 961                 } else {
 962                     $s .= $this->lastModified();
 963                 }
 964
 965                 if ($wgPageShowWatchingUsers && $wgUser->getOption( 'shownumberswatching' )) {
 966                         $dbr =& wfGetDB( DB_SLAVE );
 967                         extract( $dbr->tableNames( 'watchlist' ) );
 968                         $sql = "SELECT COUNT(*) AS n FROM $watchlist
 969                                 WHERE wl_title='" . $dbr->strencode($wgTitle->getDBKey()) .
 970                                 "' AND  wl_namespace=" . $wgTitle->getNamespace() ;
 971                         $res = $dbr->query( $sql, 'Skin::pageStats');
 972                         $x = $dbr->fetchObject( $res );
 973                         $s .= ' ' . wfMsg('number_of_watching_users_pageview', $x->n );
 974                 }
 975
 976                 return $s . ' ' .  $this->getCopyright();
 977         }
 978
 979         function getCopyright( $type = 'detect' ) {
 980                 global $wgRightsPage, $wgRightsUrl, $wgRightsText, $wgRequest;
 981
 982                 if ( $type == 'detect' ) {
 983                         $oldid = $wgRequest->getVal( 'oldid' );
 984                         $diff = $wgRequest->getVal( 'diff' );
 985
 986                         if ( !is_null( $oldid ) && is_null( $diff ) && wfMsgForContent( 'history_copyright' ) !== '-' ) {
 987                                 $type = 'history';
 988                         } else {
 989                                 $type = 'normal';
 990                         }
 991                 }
 992
 993                 if ( $type == 'history' ) {
 994                         $msg = 'history_copyright';
 995                 } else {
 996                         $msg = 'copyright';
 997                 }
 998
 999                 $out = '';
1000                 if( $wgRightsPage ) {
1001                         $link = $this->makeKnownLink( $wgRightsPage, $wgRightsText );
1002                 } elseif( $wgRightsUrl ) {
1003                         $link = $this->makeExternalLink( $wgRightsUrl, $wgRightsText );
1004                 } else {
1005                         # Give up now
1006                         return $out;
1007                 }
1008                 $out .= wfMsgForContent( $msg, $link );
1009                 return $out;
1010         }
1011
1012         function getCopyrightIcon() {
1013                 global $wgRightsUrl, $wgRightsText, $wgRightsIcon, $wgCopyrightIcon;
1014                 $out = '';
1015                 if ( isset( $wgCopyrightIcon ) && $wgCopyrightIcon ) {
1016                         $out = $wgCopyrightIcon;
1017                 } else if ( $wgRightsIcon ) {
1018                         $icon = htmlspecialchars( $wgRightsIcon );
1019                         if ( $wgRightsUrl ) {
1020                                 $url = htmlspecialchars( $wgRightsUrl );
1021                                 $out .= '<a href="'.$url.'">';
1022                         }
1023                         $text = htmlspecialchars( $wgRightsText );
1024                         $out .= "<img src=\"$icon\" alt='$text' />";
1025                         if ( $wgRightsUrl ) {
1026                                 $out .= '</a>';
1027                         }
1028                 }
1029                 return $out;
1030         }
1031
1032         function getPoweredBy() {
1033                 global $wgStylePath;
1034                 $url = htmlspecialchars( "$wgStylePath/common/images/poweredby_mediawiki_88x31.png" );
1035                 $img = '<a href="http://www.mediawiki.org/"><img src="'.$url.'" alt="MediaWiki" /></a>';
1036                 return $img;
1037         }
1038
1039         function lastModified() {
1040                 global $wgLang, $wgArticle, $wgLoadBalancer;
1041
1042                 $timestamp = $wgArticle->getTimestamp();
1043                 if ( $timestamp ) {
1044                         $d = $wgLang->timeanddate( $timestamp, true );
1045                         $s = ' ' . wfMsg( 'lastmodified', $d );
1046                 } else {
1047                         $s = '';
1048                 }
1049                 if ( $wgLoadBalancer->getLaggedSlaveMode() ) {
1050                         $s .= ' <strong>' . wfMsg( 'laggedslavemode' ) . '</strong>';
1051                 }
1052                 return $s;
1053         }
1054
1055         function logoText( $align = '' ) {
1056                 if ( '' != $align ) { $a = " align='{$align}'"; }
1057                 else { $a = ''; }
1058
1059                 $mp = wfMsg( 'mainpage' );
1060                 $titleObj = Title::newFromText( $mp );
1061                 if ( is_object( $titleObj ) ) {
1062                         $url = $titleObj->escapeLocalURL();
1063                 } else {
1064                         $url = '';
1065                 }
1066
1067                 $logourl = $this->getLogo();
1068                 $s = "<a href='{$url}'><img{$a} src='{$logourl}' alt='[{$mp}]' /></a>";
1069                 return $s;
1070         }
1071
1072         /**
1073          * show a drop-down box of special pages
1074          * @TODO crash bug913. Need to be rewrote completly.
1075          */
1076         function specialPagesList() {
1077                 global $wgUser, $wgContLang, $wgServer, $wgRedirectScript;
1078                 require_once('SpecialPage.php');
1079                 $a = array();
1080                 $pages = SpecialPage::getPages();
1081
1082                 // special pages without access restriction
1083                 foreach ( $pages[''] as $name => $page ) {
1084                         $a[$name] = $page->getDescription();
1085                 }
1086
1087                 // Other special pages that are restricted.
1088                 foreach ( $pages['restricted'] as $name => $page ) {
1089                         if( $wgUser->isAllowed( $page->getRestriction() ) ) {
1090                                 $a[$name] = $page->getDescription();
1091                         }
1092                 }
1093
1094                 $go = wfMsg( 'go' );
1095                 $sp = wfMsg( 'specialpages' );
1096                 $spp = $wgContLang->specialPage( 'Specialpages' );
1097
1098                 $s = '<form id="specialpages" method="get" class="inline" ' .
1099                   'action="' . htmlspecialchars( "{$wgServer}{$wgRedirectScript}" ) . "\">\n";
1100                 $s .= "<select name=\"wpDropdown\">\n";
1101                 $s .= "<option value=\"{$spp}\">{$sp}</option>\n";
1102
1103
1104                 foreach ( $a as $name => $desc ) {
1105                         $p = $wgContLang->specialPage( $name );
1106                         $s .= "<option value=\"{$p}\">{$desc}</option>\n";
1107                 }
1108                 $s .= "</select>\n";
1109                 $s .= "<input type='submit' value=\"{$go}\" name='redirect' />\n";
1110                 $s .= "</form>\n";
1111                 return $s;
1112         }
1113
1114         function mainPageLink() {
1115                 $mp = wfMsgForContent( 'mainpage' );
1116                 $mptxt = wfMsg( 'mainpage');
1117                 $s = $this->makeKnownLink( $mp, $mptxt );
1118                 return $s;
1119         }
1120
1121         function copyrightLink() {
1122                 $s = $this->makeKnownLink( wfMsgForContent( 'copyrightpage' ),
1123                   wfMsg( 'copyrightpagename' ) );
1124                 return $s;
1125         }
1126
1127         function privacyLink() {
1128                 $privacy = wfMsg( 'privacy' );
1129                 if ($privacy == '-') {
1130                         return '';
1131                 } else {
1132                         return $this->makeKnownLink( wfMsgForContent( 'privacypage' ), $privacy);
1133                 }
1134         }
1135
1136         function aboutLink() {
1137                 $s = $this->makeKnownLink( wfMsgForContent( 'aboutpage' ),
1138                   wfMsg( 'aboutsite' ) );
1139                 return $s;
1140         }
1141
1142         function disclaimerLink() {
1143                 $disclaimers = wfMsg( 'disclaimers' );
1144                 if ($disclaimers == '-') {
1145                         return '';
1146                 } else {
1147                         return $this->makeKnownLink( wfMsgForContent( 'disclaimerpage' ),
1148                                                      $disclaimers );
1149                 }
1150         }
1151
1152         function editThisPage() {
1153                 global $wgOut, $wgTitle;
1154
1155                 if ( ! $wgOut->isArticleRelated() ) {
1156                         $s = wfMsg( 'protectedpage' );
1157                 } else {
1158                         if ( $wgTitle->userCanEdit() ) {
1159                                 $t = wfMsg( 'editthispage' );
1160                         } else {
1161                                 $t = wfMsg( 'viewsource' );
1162                         }
1163
1164                         $s = $this->makeKnownLinkObj( $wgTitle, $t, $this->editUrlOptions() );
1165                 }
1166                 return $s;
1167         }
1168
1169         /**
1170          * Return URL options for the 'edit page' link.
1171          * This may include an 'oldid' specifier, if the current page view is such.
1172          *
1173          * @return string
1174          * @private
1175          */
1176         function editUrlOptions() {
1177                 global $wgArticle;
1178
1179                 if( $this->mRevisionId && ! $wgArticle->isCurrent() ) {
1180                         return "action=edit&oldid=" . intval( $this->mRevisionId );
1181                 } else {
1182                         return "action=edit";
1183                 }
1184         }
1185
1186         function deleteThisPage() {
1187                 global $wgUser, $wgTitle, $wgRequest;
1188
1189                 $diff = $wgRequest->getVal( 'diff' );
1190                 if ( $wgTitle->getArticleId() && ( ! $diff ) && $wgUser->isAllowed('delete') ) {
1191                         $t = wfMsg( 'deletethispage' );
1192
1193                         $s = $this->makeKnownLinkObj( $wgTitle, $t, 'action=delete' );
1194                 } else {
1195                         $s = '';
1196                 }
1197                 return $s;
1198         }
1199
1200         function protectThisPage() {
1201                 global $wgUser, $wgTitle, $wgRequest;
1202
1203                 $diff = $wgRequest->getVal( 'diff' );
1204                 if ( $wgTitle->getArticleId() && ( ! $diff ) && $wgUser->isAllowed('protect') ) {
1205                         if ( $wgTitle->isProtected() ) {
1206                                 $t = wfMsg( 'unprotectthispage' );
1207                                 $q = 'action=unprotect';
1208                         } else {
1209                                 $t = wfMsg( 'protectthispage' );
1210                                 $q = 'action=protect';
1211                         }
1212                         $s = $this->makeKnownLinkObj( $wgTitle, $t, $q );
1213                 } else {
1214                         $s = '';
1215                 }
1216                 return $s;
1217         }
1218
1219         function watchThisPage() {
1220                 global $wgOut, $wgTitle;
1221
1222                 if ( $wgOut->isArticleRelated() ) {
1223                         if ( $wgTitle->userIsWatching() ) {
1224                                 $t = wfMsg( 'unwatchthispage' );
1225                                 $q = 'action=unwatch';
1226                         } else {
1227                                 $t = wfMsg( 'watchthispage' );
1228                                 $q = 'action=watch';
1229                         }
1230                         $s = $this->makeKnownLinkObj( $wgTitle, $t, $q );
1231                 } else {
1232                         $s = wfMsg( 'notanarticle' );
1233                 }
1234                 return $s;
1235         }
1236
1237         function moveThisPage() {
1238                 global $wgTitle;
1239
1240                 if ( $wgTitle->userCanMove() ) {
1241                         return $this->makeKnownLinkObj( Title::makeTitle( NS_SPECIAL, 'Movepage' ),
1242                           wfMsg( 'movethispage' ), 'target=' . $wgTitle->getPrefixedURL() );
1243                 } else {
1244                         // no message if page is protected - would be redundant
1245                         return '';
1246                 }
1247         }
1248
1249         function historyLink() {
1250                 global $wgTitle;
1251
1252                 return $this->makeKnownLinkObj( $wgTitle,
1253                   wfMsg( 'history' ), 'action=history' );
1254         }
1255
1256         function whatLinksHere() {
1257                 global $wgTitle;
1258
1259                 return $this->makeKnownLinkObj( Title::makeTitle( NS_SPECIAL, 'Whatlinkshere' ),
1260                   wfMsg( 'whatlinkshere' ), 'target=' . $wgTitle->getPrefixedURL() );
1261         }
1262
1263         function userContribsLink() {
1264                 global $wgTitle;
1265
1266                 return $this->makeKnownLinkObj( Title::makeTitle( NS_SPECIAL, 'Contributions' ),
1267                   wfMsg( 'contributions' ), 'target=' . $wgTitle->getPartialURL() );
1268         }
1269
1270         function showEmailUser( $id ) {
1271                 global $wgEnableEmail, $wgEnableUserEmail, $wgUser;
1272                 return $wgEnableEmail &&
1273                        $wgEnableUserEmail &&
1274                        $wgUser->isLoggedIn() && # show only to signed in users
1275                        0 != $id; # we can only email to non-anons ..
1276 #                      '' != $id->getEmail() && # who must have an email address stored ..
1277 #                      0 != $id->getEmailauthenticationtimestamp() && # .. which is authenticated
1278 #                      1 != $wgUser->getOption('disablemail'); # and not disabled
1279         }
1280
1281         function emailUserLink() {
1282                 global $wgTitle;
1283
1284                 return $this->makeKnownLinkObj( Title::makeTitle( NS_SPECIAL, 'Emailuser' ),
1285                   wfMsg( 'emailuser' ), 'target=' . $wgTitle->getPartialURL() );
1286         }
1287
1288         function watchPageLinksLink() {
1289                 global $wgOut, $wgTitle;
1290
1291                 if ( ! $wgOut->isArticleRelated() ) {
1292                         return '(' . wfMsg( 'notanarticle' ) . ')';
1293                 } else {
1294                         return $this->makeKnownLinkObj( Title::makeTitle( NS_SPECIAL,
1295                           'Recentchangeslinked' ), wfMsg( 'recentchangeslinked' ),
1296                           'target=' . $wgTitle->getPrefixedURL() );
1297                 }
1298         }
1299
1300         function trackbackLink() {
1301                 global $wgTitle;
1302
1303                 return "<a href=\"" . $wgTitle->trackbackURL() . "\">"
1304                         . wfMsg('trackbacklink') . "</a>";
1305         }
1306
1307         function otherLanguages() {
1308                 global $wgOut, $wgContLang, $wgHideInterlanguageLinks;
1309
1310                 if ( $wgHideInterlanguageLinks ) {
1311                         return '';
1312                 }
1313
1314                 $a = $wgOut->getLanguageLinks();
1315                 if ( 0 == count( $a ) ) {
1316                         return '';
1317                 }
1318
1319                 $s = wfMsg( 'otherlanguages' ) . ': ';
1320                 $first = true;
1321                 if($wgContLang->isRTL()) $s .= '<span dir="LTR">';
1322                 foreach( $a as $l ) {
1323                         if ( ! $first ) { $s .= ' | '; }
1324                         $first = false;
1325
1326                         $nt = Title::newFromText( $l );
1327                         $url = $nt->escapeFullURL();
1328                         $text = $wgContLang->getLanguageName( $nt->getInterwiki() );
1329
1330                         if ( '' == $text ) { $text = $l; }
1331                         $style = $this->getExternalLinkAttributes( $l, $text );
1332                         $s .= "<a href=\"{$url}\"{$style}>{$text}</a>";
1333                 }
1334                 if($wgContLang->isRTL()) $s .= '</span>';
1335                 return $s;
1336         }
1337
1338         function bugReportsLink() {
1339                 $s = $this->makeKnownLink( wfMsgForContent( 'bugreportspage' ),
1340                   wfMsg( 'bugreports' ) );
1341                 return $s;
1342         }
1343
1344         function dateLink() {
1345                 $t1 = Title::newFromText( gmdate( 'F j' ) );
1346                 $t2 = Title::newFromText( gmdate( 'Y' ) );
1347
1348                 $id = $t1->getArticleID();
1349
1350                 if ( 0 == $id ) {
1351                         $s = $this->makeBrokenLink( $t1->getText() );
1352                 } else {
1353                         $s = $this->makeKnownLink( $t1->getText() );
1354                 }
1355                 $s .= ', ';
1356
1357                 $id = $t2->getArticleID();
1358
1359                 if ( 0 == $id ) {
1360                         $s .= $this->makeBrokenLink( $t2->getText() );
1361                 } else {
1362                         $s .= $this->makeKnownLink( $t2->getText() );
1363                 }
1364                 return $s;
1365         }
1366
1367         function talkLink() {
1368                 global $wgTitle;
1369
1370                 if ( NS_SPECIAL == $wgTitle->getNamespace() ) {
1371                         # No discussion links for special pages
1372                         return '';
1373                 }
1374
1375                 if( $wgTitle->isTalkPage() ) {
1376                         $link = $wgTitle->getSubjectPage();
1377                         switch( $link->getNamespace() ) {
1378                         case NS_MAIN:
1379                                 $text = wfMsg('articlepage');
1380                                 break;
1381                         case NS_USER:
1382                                 $text = wfMsg('userpage');
1383                                 break;
1384                         case NS_PROJECT:
1385                                 $text = wfMsg('projectpage');
1386                                 break;
1387                         case NS_IMAGE:
1388                                 $text = wfMsg('imagepage');
1389                                 break;
1390                         default:
1391                                 $text= wfMsg('articlepage');
1392                         }
1393                 } else {
1394                         $link = $wgTitle->getTalkPage();
1395                         $text = wfMsg( 'talkpage' );
1396                 }
1397
1398                 $s = $this->makeLinkObj( $link, $text );
1399
1400                 return $s;
1401         }
1402
1403         function commentLink() {
1404                 global $wgTitle, $wgOut;
1405
1406                 if ( $wgTitle->getNamespace() == NS_SPECIAL ) {
1407                         return '';
1408                 }
1409
1410                 # __NEWSECTIONLINK___ changes behaviour here
1411                 # If it's present, the link points to this page, otherwise
1412                 # it points to the talk page
1413                 if( $wgTitle->isTalkPage() ) {
1414                         $title =& $wgTitle;
1415                 } elseif( $wgOut->showNewSectionLink() ) {
1416                         $title =& $wgTitle;
1417                 } else {
1418                         $title =& $wgTitle->getTalkPage();
1419                 }
1420
1421                 return $this->makeKnownLinkObj( $title, wfMsg( 'postcomment' ), 'action=edit&section=new' );
1422         }
1423
1424         /* these are used extensively in SkinTemplate, but also some other places */
1425         /*static*/ function makeSpecialUrl( $name, $urlaction='' ) {
1426                 $title = Title::makeTitle( NS_SPECIAL, $name );
1427                 return $title->getLocalURL( $urlaction );
1428         }
1429
1430         /*static*/ function makeI18nUrl ( $name, $urlaction='' ) {
1431                 $title = Title::newFromText( wfMsgForContent($name) );
1432                 $this->checkTitle($title, $name);
1433                 return $title->getLocalURL( $urlaction );
1434         }
1435
1436         /*static*/ function makeUrl ( $name, $urlaction='' ) {
1437                 $title = Title::newFromText( $name );
1438                 $this->checkTitle($title, $name);
1439                 return $title->getLocalURL( $urlaction );
1440         }
1441
1442         # If url string starts with http, consider as external URL, else
1443         # internal
1444         /*static*/ function makeInternalOrExternalUrl( $name ) {
1445                 if ( preg_match( '/^(?:' . wfUrlProtocols() . ')/', $name ) ) {
1446                         return $name;
1447                 } else {
1448                         return $this->makeUrl( $name );
1449                 }
1450         }
1451
1452         # this can be passed the NS number as defined in Language.php
1453         /*static*/ function makeNSUrl( $name, $urlaction='', $namespace=NS_MAIN ) {
1454                 $title = Title::makeTitleSafe( $namespace, $name );
1455                 $this->checkTitle($title, $name);
1456                 return $title->getLocalURL( $urlaction );
1457         }
1458
1459         /* these return an array with the 'href' and boolean 'exists' */
1460         /*static*/ function makeUrlDetails ( $name, $urlaction='' ) {
1461                 $title = Title::newFromText( $name );
1462                 $this->checkTitle($title, $name);
1463                 return array(
1464                         'href' => $title->getLocalURL( $urlaction ),
1465                         'exists' => $title->getArticleID() != 0?true:false
1466                 );
1467         }
1468
1469         /**
1470          * Make URL details where the article exists (or at least it's convenient to think so)
1471          */
1472         function makeKnownUrlDetails( $name, $urlaction='' ) {
1473                 $title = Title::newFromText( $name );
1474                 $this->checkTitle($title, $name);
1475                 return array(
1476                         'href' => $title->getLocalURL( $urlaction ),
1477                         'exists' => true
1478                 );
1479         }
1480
1481         # make sure we have some title to operate on
1482         /*static*/ function checkTitle ( &$title, &$name ) {
1483                 if(!is_object($title)) {
1484                         $title = Title::newFromText( $name );
1485                         if(!is_object($title)) {
1486                                 $title = Title::newFromText( '--error: link target missing--' );
1487                         }
1488                 }
1489         }
1490
1491         /**
1492          * Build an array that represents the sidebar(s), the navigation bar among them
1493          *
1494          * @return array
1495          * @private
1496          */
1497         function buildSidebar() {
1498                 global $wgDBname, $parserMemc, $wgEnableSidebarCache;
1499                 global $wgLang, $wgContLang;
1500
1501                 $fname = 'SkinTemplate::buildSidebar';
1502
1503                 wfProfileIn( $fname );
1504
1505                 $key = "{$wgDBname}:sidebar";
1506                 $cacheSidebar = $wgEnableSidebarCache &&
1507                         ($wgLang->getCode() == $wgContLang->getCode());
1508
1509                 if ($cacheSidebar) {
1510                         $cachedsidebar = $parserMemc->get( $key );
1511                         if ($cachedsidebar!="") {
1512                                 wfProfileOut($fname);
1513                                 return $cachedsidebar;
1514                         }
1515                 }
1516
1517                 $bar = array();
1518                 $lines = explode( "\n", wfMsgForContent( 'sidebar' ) );
1519                 foreach ($lines as $line) {
1520                         if (strpos($line, '*') !== 0)
1521                                 continue;
1522                         if (strpos($line, '**') !== 0) {
1523                                 $line = trim($line, '* ');
1524                                 $heading = $line;
1525                         } else {
1526                                 if (strpos($line, '|') !== false) { // sanity check
1527                                         $line = explode( '|' , trim($line, '* '), 2 );
1528                                         $link = wfMsgForContent( $line[0] );
1529                                         if ($link == '-')
1530                                                 continue;
1531                                         if (wfEmptyMsg($line[1], $text = wfMsg($line[1])))
1532                                                 $text = $line[1];
1533                                         if (wfEmptyMsg($line[0], $link))
1534                                                 $link = $line[0];
1535                                         $href = $this->makeInternalOrExternalUrl( $link );
1536                                         $bar[$heading][] = array(
1537                                                 'text' => $text,
1538                                                 'href' => $href,
1539                                                 'id' => 'n-' . strtr($line[1], ' ', '-'),
1540                                                 'active' => false
1541                                         );
1542                                 } else { continue; }
1543                         }
1544                 }
1545                 if ($cacheSidebar)
1546                         $cachednotice = $parserMemc->set( $key, $bar, 86400 );
1547                 wfProfileOut( $fname );
1548                 return $bar;
1549         }
1550 }
1551 ?>