includes/Skin.php

   1 <?php
   2
   3 /**
   4  *
   5  * @package MediaWiki
   6  * @subpackage Skins
   7  */
   8
   9 /**
  10  * This is not a valid entry point, perform no further processing unless MEDIAWIKI is defined
  11  */
  12 if( defined( "MEDIAWIKI" ) ) {
  13
  14 # See skin.txt
  15 require_once( 'Linker.php' );
  16 require_once( 'Image.php' );
  17
  18 # Get a list of all skins available in /skins/
  19 # Build using the regular expression '^(.*).php$'
  20 # Array keys are all lower case, array value keep the case used by filename
  21 #
  22
  23 $skinDir = dir($IP.'/skins');
  24
  25 # while code from www.php.net
  26 while (false !== ($file = $skinDir->read())) {
  27         if(preg_match('/^([^.].*)\.php$/',$file, $matches)) {
  28                 $aSkin = $matches[1];
  29                 $wgValidSkinNames[strtolower($aSkin)] = $aSkin;
  30         }
  31 }
  32 $skinDir->close();
  33 unset($matches);
  34
  35 require_once( 'RecentChange.php' );
  36
  37 /**
  38  * @todo document
  39  * @package MediaWiki
  40  */
  41 class RCCacheEntry extends RecentChange
  42 {
  43         var $secureName, $link;
  44         var $curlink , $difflink, $lastlink , $usertalklink , $versionlink ;
  45         var $userlink, $timestamp, $watched;
  46
  47         function newFromParent( $rc )
  48         {
  49                 $rc2 = new RCCacheEntry;
  50                 $rc2->mAttribs = $rc->mAttribs;
  51                 $rc2->mExtra = $rc->mExtra;
  52                 return $rc2;
  53         }
  54 } ;
  55
  56
  57 /**
  58  * The main skin class that provide methods and properties for all other skins
  59  * including PHPTal skins.
  60  * This base class is also the "Standard" skin.
  61  * @package MediaWiki
  62  */
  63 class Skin extends Linker {
  64         /**#@+
  65          * @access private
  66          */
  67         var $lastdate, $lastline;
  68         var $rc_cache ; # Cache for Enhanced Recent Changes
  69         var $rcCacheIndex ; # Recent Changes Cache Counter for visibility toggle
  70         var $rcMoveIndex;
  71         /**#@-*/
  72
  73         /** Constructor, call parent constructor */
  74         function Skin() { parent::Linker(); }
  75
  76         function getSkinNames() {
  77                 global $wgValidSkinNames;
  78                 return $wgValidSkinNames;
  79         }
  80
  81         /** @return string path to the skin stylesheet */
  82         function getStylesheet() { return 'common/wikistandard.css'; }
  83
  84         /** @return string skin name */
  85         function getSkinName() {
  86                 return 'standard';
  87         }
  88
  89         function qbSetting() {
  90                 global $wgOut, $wgUser;
  91
  92                 if ( $wgOut->isQuickbarSuppressed() ) { return 0; }
  93                 $q = $wgUser->getOption( 'quickbar' );
  94                 if ( '' == $q ) { $q = 0; }
  95                 return $q;
  96         }
  97
  98         function initPage( &$out ) {
  99                 $fname = 'Skin::initPage';
 100                 wfProfileIn( $fname );
 101
 102                 $out->addLink( array( 'rel' => 'shortcut icon', 'href' => '/favicon.ico' ) );
 103
 104                 $this->addMetadataLinks($out);
 105
 106                 wfProfileOut( $fname );
 107         }
 108
 109         function addMetadataLinks( &$out ) {
 110                 global $wgTitle, $wgEnableDublinCoreRdf, $wgEnableCreativeCommonsRdf, $wgRdfMimeType, $action;
 111                 global $wgRightsPage, $wgRightsUrl, $wgUseTrackbacks;
 112
 113                 if( $out->isArticleRelated() ) {
 114                         # note: buggy CC software only reads first "meta" link
 115                         if( $wgEnableCreativeCommonsRdf ) {
 116                                 $out->addMetadataLink( array(
 117                                         'title' => 'Creative Commons',
 118                                         'type' => 'application/rdf+xml',
 119                                         'href' => $wgTitle->getLocalURL( 'action=creativecommons') ) );
 120                         }
 121                         if( $wgEnableDublinCoreRdf ) {
 122                                 $out->addMetadataLink( array(
 123                                         'title' => 'Dublin Core',
 124                                         'type' => 'application/rdf+xml',
 125                                         'href' => $wgTitle->getLocalURL( 'action=dublincore' ) ) );
 126                         }
 127                 }
 128                 $copyright = '';
 129                 if( $wgRightsPage ) {
 130                         $copy = Title::newFromText( $wgRightsPage );
 131                         if( $copy ) {
 132                                 $copyright = $copy->getLocalURL();
 133                         }
 134                 }
 135                 if( !$copyright && $wgRightsUrl ) {
 136                         $copyright = $wgRightsUrl;
 137                 }
 138                 if( $copyright ) {
 139                         $out->addLink( array(
 140                                 'rel' => 'copyright',
 141                                 'href' => $copyright ) );
 142                 }
 143         }
 144
 145         function outputPage( &$out ) {
 146                 global $wgDebugComments;
 147
 148                 wfProfileIn( 'Skin::outputPage' );
 149                 $this->initPage( $out );
 150
 151                 $out->out( $out->headElement() );
 152
 153                 $out->out( "\n<body" );
 154                 $ops = $this->getBodyOptions();
 155                 foreach ( $ops as $name => $val ) {
 156                         $out->out( " $name='$val'" );
 157                 }
 158                 $out->out( ">\n" );
 159                 if ( $wgDebugComments ) {
 160                         $out->out( "<!-- Wiki debugging output:\n" .
 161                           $out->mDebugtext . "-->\n" );
 162                 }
 163
 164                 $out->out( $this->beforeContent() );
 165
 166                 $out->out( $out->mBodytext . "\n" );
 167
 168                 $out->out( $this->afterContent() );
 169
 170                 wfProfileClose();
 171                 $out->out( $out->reportTime() );
 172
 173                 $out->out( "\n</body></html>" );
 174         }
 175
 176         function getHeadScripts() {
 177                 global $wgStylePath, $wgUser, $wgContLang, $wgAllowUserJs, $wgJsMimeType;
 178                 $r = "<script type=\"{$wgJsMimeType}\" src=\"{$wgStylePath}/common/wikibits.js\"></script>\n";
 179                 if( $wgAllowUserJs && $wgUser->isLoggedIn() ) {
 180                         $userpage = $wgUser->getUserPage();
 181                         $userjs = htmlspecialchars( $this->makeUrl(
 182                                 $userpage->getPrefixedText().'/'.$this->getSkinName().'.js',
 183                                 'action=raw&ctype='.$wgJsMimeType));
 184                         $r .= '<script type="'.$wgJsMimeType.'" src="'.$userjs."\"></script>\n";
 185                 }
 186                 return $r;
 187         }
 188
 189         /**
 190          * To make it harder for someone to slip a user a fake
 191          * user-JavaScript or user-CSS preview, a random token
 192          * is associated with the login session. If it's not
 193          * passed back with the preview request, we won't render
 194          * the code.
 195          *
 196          * @param string $action
 197          * @return bool
 198          * @access private
 199          */
 200         function userCanPreview( $action ) {
 201                 global $wgTitle, $wgRequest, $wgUser;
 202
 203                 if( $action != 'submit' )
 204                         return false;
 205                 if( !$wgRequest->wasPosted() )
 206                         return false;
 207                 if( !$wgTitle->userCanEditCssJsSubpage() )
 208                         return false;
 209                 return $wgUser->matchEditToken(
 210                         $wgRequest->getVal( 'wpEditToken' ) );
 211         }
 212
 213         # get the user/site-specific stylesheet, SkinPHPTal called from RawPage.php (settings are cached that way)
 214         function getUserStylesheet() {
 215                 global $wgOut, $wgStylePath, $wgRequest, $wgContLang, $wgSquidMaxage;
 216                 $sheet = $this->getStylesheet();
 217                 $action = $wgRequest->getText('action');
 218                 $s = "@import \"$wgStylePath/$sheet\";\n";
 219                 if($wgContLang->isRTL()) $s .= "@import \"$wgStylePath/common/common_rtl.css\";\n";
 220
 221                 $query = "action=raw&ctype=text/css&smaxage=$wgSquidMaxage";
 222                 $s .= '@import "' . $this->makeNSUrl( 'Common.css', $query, NS_MEDIAWIKI ) . "\";\n" .
 223                         '@import "'.$this->makeNSUrl( ucfirst( $this->getSkinName() . '.css' ), $query, NS_MEDIAWIKI ) . "\";\n";
 224
 225                 $s .= $this->doGetUserStyles();
 226                 return $s."\n";
 227         }
 228
 229         /**
 230          * placeholder, returns generated js in monobook
 231          */
 232         function getUserJs() { return; }
 233
 234         /**
 235          * Return html code that include User stylesheets
 236          */
 237         function getUserStyles() {
 238                 global $wgOut, $wgStylePath, $wgLang;
 239                 $s = "<style type='text/css'>\n";
 240                 $s .= "/*/*/ /*<![CDATA[*/\n"; # <-- Hide the styles from Netscape 4 without hiding them from IE/Mac
 241                 $s .= $this->getUserStylesheet();
 242                 $s .= "/*]]>*/ /* */\n";
 243                 $s .= "</style>\n";
 244                 return $s;
 245         }
 246
 247         /**
 248          * Some styles that are set by user through the user settings interface.
 249          */
 250         function doGetUserStyles() {
 251                 global $wgUser, $wgContLang, $wgUser, $wgRequest, $wgTitle, $wgAllowUserCss;
 252
 253                 $s = '';
 254
 255                 if( $wgAllowUserCss && $wgUser->isLoggedIn() ) { # logged in
 256                         if($wgTitle->isCssSubpage() && $this->userCanPreview( $action ) ) {
 257                                 $s .= $wgRequest->getText('wpTextbox1');
 258                         } else {
 259                                 $userpage = $wgUser->getUserPage();
 260                                 $s.= '@import "'.$this->makeUrl(
 261                                         $userpage->getPrefixedText().'/'.$this->getSkinName().'.css',
 262                                         'action=raw&ctype=text/css').'";'."\n";
 263                         }
 264                 }
 265
 266                 return $s . $this->reallyDoGetUserStyles();
 267         }
 268
 269         function reallyDoGetUserStyles() {
 270                 global $wgUser;
 271                 $s = '';
 272                 if (($undopt = $wgUser->getOption("underline")) != 2) {
 273                         $underline = $undopt ? 'underline' : 'none';
 274                         $s .= "a { text-decoration: $underline; }\n";
 275                 }
 276                 if( $wgUser->getOption( 'highlightbroken' ) ) {
 277                         $s .= "a.new, #quickbar a.new { color: #CC2200; }\n";
 278                 } else {
 279                         $s .= <<<END
 280 a.new, #quickbar a.new,
 281 a.stub, #quickbar a.stub {
 282         color: inherit;
 283         text-decoration: inherit;
 284 }
 285 a.new:after, #quickbar a.new:after {
 286         content: "?";
 287         color: #CC2200;
 288         text-decoration: $underline;
 289 }
 290 a.stub:after, #quickbar a.stub:after {
 291         content: "!";
 292         color: #772233;
 293         text-decoration: $underline;
 294 }
 295 END;
 296                 }
 297                 if( $wgUser->getOption( 'justify' ) ) {
 298                         $s .= "#article, #bodyContent { text-align: justify; }\n";
 299                 }
 300                 if( !$wgUser->getOption( 'showtoc' ) ) {
 301                         $s .= "#toc { display: none; }\n";
 302                 }
 303                 if( !$wgUser->getOption( 'editsection' ) ) {
 304                         $s .= ".editsection { display: none; }\n";
 305                 }
 306                 return $s;
 307         }
 308
 309         function getBodyOptions() {
 310                 global $wgUser, $wgTitle, $wgNamespaceBackgrounds, $wgOut, $wgRequest;
 311
 312                 extract( $wgRequest->getValues( 'oldid', 'redirect', 'diff' ) );
 313
 314                 if ( 0 != $wgTitle->getNamespace() ) {
 315                         $a = array( 'bgcolor' => '#ffffec' );
 316                 }
 317                 else $a = array( 'bgcolor' => '#FFFFFF' );
 318                 if($wgOut->isArticle() && $wgUser->getOption('editondblclick') &&
 319                   $wgTitle->userCanEdit() ) {
 320                         $t = wfMsg( 'editthispage' );
 321                         $oid = $red = '';
 322                         if ( !empty($redirect) && $redirect == 'no' ) {
 323                                 $red = "&redirect={$redirect}";
 324                         }
 325                         if ( !empty($oldid) && ! isset( $diff ) ) {
 326                                 $oid = "&oldid=" . intval( $oldid );
 327                         }
 328                         $s = $wgTitle->getFullURL( "action=edit{$oid}{$red}" );
 329                         $s = 'document.location = "' .$s .'";';
 330                         $a += array ('ondblclick' => $s);
 331
 332                 }
 333                 $a['onload'] = $wgOut->getOnloadHandler();
 334                 if( $wgUser->getOption( 'editsectiononrightclick' ) ) {
 335                         if( $a['onload'] != '' ) {
 336                                 $a['onload'] .= ';';
 337                         }
 338                         $a['onload'] .= 'setupRightClickEdit()';
 339                 }
 340                 return $a;
 341         }
 342
 343         /**
 344          * URL to the logo
 345          */
 346         function getLogo() {
 347                 global $wgLogo;
 348                 return $wgLogo;
 349         }
 350
 351         /**
 352          * This will be called immediately after the <body> tag.  Split into
 353          * two functions to make it easier to subclass.
 354          */
 355         function beforeContent() {
 356                 return $this->doBeforeContent();
 357         }
 358
 359         function doBeforeContent() {
 360                 global $wgOut, $wgTitle, $wgContLang;
 361                 $fname = 'Skin::doBeforeContent';
 362                 wfProfileIn( $fname );
 363
 364                 $s = '';
 365                 $qb = $this->qbSetting();
 366
 367                 if( $langlinks = $this->otherLanguages() ) {
 368                         $rows = 2;
 369                         $borderhack = '';
 370                 } else {
 371                         $rows = 1;
 372                         $langlinks = false;
 373                         $borderhack = 'class="top"';
 374                 }
 375
 376                 $s .= "\n<div id='content'>\n<div id='topbar'>\n" .
 377                   "<table border='0' cellspacing='0' width='98%'>\n<tr>\n";
 378
 379                 $shove = ($qb != 0);
 380                 $left = ($qb == 1 || $qb == 3);
 381                 if($wgContLang->isRTL()) $left = !$left;
 382
 383                 if ( !$shove ) {
 384                         $s .= "<td class='top' align='left' valign='top' rowspan='{$rows}'>\n" .
 385                           $this->logoText() . '</td>';
 386                 } elseif( $left ) {
 387                         $s .= $this->getQuickbarCompensator( $rows );
 388                 }
 389                 $l = $wgContLang->isRTL() ? 'right' : 'left';
 390                 $s .= "<td {$borderhack} align='$l' valign='top'>\n";
 391
 392                 $s .= $this->topLinks() ;
 393                 $s .= "<p class='subtitle'>" . $this->pageTitleLinks() . "</p>\n";
 394
 395                 $r = $wgContLang->isRTL() ? "left" : "right";
 396                 $s .= "</td>\n<td {$borderhack} valign='top' align='$r' nowrap='nowrap'>";
 397                 $s .= $this->nameAndLogin();
 398                 $s .= "\n<br />" . $this->searchForm() . "</td>";
 399
 400                 if ( $langlinks ) {
 401                         $s .= "</tr>\n<tr>\n<td class='top' colspan=\"2\">$langlinks</td>\n";
 402                 }
 403
 404                 if ( $shove && !$left ) { # Right
 405                         $s .= $this->getQuickbarCompensator( $rows );
 406                 }
 407                 $s .= "</tr>\n</table>\n</div>\n";
 408                 $s .= "\n<div id='article'>\n";
 409
 410                 $notice = wfGetSiteNotice();
 411                 if( $notice ) {
 412                         $s .= "\n<div id='siteNotice'>$notice</div>\n";
 413                 }
 414                 $s .= $this->pageTitle();
 415                 $s .= $this->pageSubtitle() ;
 416                 $s .= $this->getCategories();
 417                 wfProfileOut( $fname );
 418                 return $s;
 419         }
 420
 421
 422         function getCategoryLinks () {
 423                 global $wgOut, $wgTitle, $wgParser;
 424                 global $wgUseCategoryMagic, $wgUseCategoryBrowser, $wgLang;
 425
 426                 if( !$wgUseCategoryMagic ) return '' ;
 427                 if( count( $wgOut->mCategoryLinks ) == 0 ) return '';
 428
 429                 # Taken out so that they will be displayed in previews -- TS
 430                 #if( !$wgOut->isArticle() ) return '';
 431
 432                 $t = implode ( ' | ' , $wgOut->mCategoryLinks );
 433                 $msg = count( $wgOut->mCategoryLinks ) === 1 ? 'categories1' : 'categories';
 434                 $s = $this->makeKnownLinkObj( Title::makeTitle( NS_SPECIAL, 'Categories' ),
 435                         wfMsg( $msg ), 'article=' . urlencode( $wgTitle->getPrefixedDBkey() ) )
 436                         . ': ' . $t;
 437
 438                 # optional 'dmoz-like' category browser. Will be shown under the list
 439                 # of categories an article belong to
 440                 if($wgUseCategoryBrowser) {
 441                         $s .= '<br /><hr />';
 442
 443                         # get a big array of the parents tree
 444                         $parenttree = $wgTitle->getParentCategoryTree();
 445                         # Skin object passed by reference cause it can not be
 446                         # accessed under the method subfunction drawCategoryBrowser
 447                         $tempout = explode("\n", Skin::drawCategoryBrowser($parenttree, $this) );
 448                         # Clean out bogus first entry and sort them
 449                         unset($tempout[0]);
 450                         asort($tempout);
 451                         # Output one per line
 452                         $s .= implode("<br />\n", $tempout);
 453                 }
 454
 455                 return $s;
 456         }
 457
 458         /** Render the array as a serie of links.
 459          * @param array $tree Categories tree returned by Title::getParentCategoryTree
 460          * @param object &skin Skin passed by reference
 461          * @return string separated by &gt;, terminate with "\n"
 462          */
 463         function drawCategoryBrowser($tree, &$skin) {
 464                 $return = '';
 465                 foreach ($tree as $element => $parent) {
 466                         if (empty($parent)) {
 467                                 # element start a new list
 468                                 $return .= "\n";
 469                         } else {
 470                                 # grab the others elements
 471                                 $return .= Skin::drawCategoryBrowser($parent, $skin) . ' &gt; ';
 472                         }
 473                         # add our current element to the list
 474                         $eltitle = Title::NewFromText($element);
 475                         $return .=  $skin->makeLinkObj( $eltitle, $eltitle->getText() ) ;
 476                 }
 477                 return $return;
 478         }
 479
 480         function getCategories() {
 481                 $catlinks=$this->getCategoryLinks();
 482                 if(!empty($catlinks)) {
 483                         return "<p class='catlinks'>{$catlinks}</p>";
 484                 }
 485         }
 486
 487         function getQuickbarCompensator( $rows = 1 ) {
 488                 return "<td width='152' rowspan='{$rows}'>&nbsp;</td>";
 489         }
 490
 491         /**
 492          * This gets called immediately before the </body> tag.
 493          * @return string HTML to be put after </body> ???
 494          */
 495         function afterContent() {
 496                 $printfooter = "<div class=\"printfooter\">\n" . $this->printFooter() . "</div>\n";
 497                 return $printfooter . $this->doAfterContent();
 498         }
 499
 500         /** @return string Retrievied from HTML text */
 501         function printSource() {
 502                 global $wgTitle;
 503                 $url = htmlspecialchars( $wgTitle->getFullURL() );
 504                 return wfMsg( 'retrievedfrom', '<a href="'.$url.'">'.$url.'</a>' );
 505         }
 506
 507         function printFooter() {
 508                 return "<p>" .  $this->printSource() .
 509                         "</p>\n\n<p>" . $this->pageStats() . "</p>\n";
 510         }
 511
 512         /** overloaded by derived classes */
 513         function doAfterContent() { }
 514
 515         function pageTitleLinks() {
 516                 global $wgOut, $wgTitle, $wgUser, $wgContLang, $wgRequest;
 517
 518                 extract( $wgRequest->getValues( 'oldid', 'diff' ) );
 519                 $action = $wgRequest->getText( 'action' );
 520
 521                 $s = $this->printableLink();
 522                 $disclaimer = $this->disclaimerLink(); # may be empty
 523                 if( $disclaimer ) {
 524                         $s .= ' | ' . $disclaimer;
 525                 }
 526
 527                 if ( $wgOut->isArticleRelated() ) {
 528                         if ( $wgTitle->getNamespace() == NS_IMAGE ) {
 529                                 $name = $wgTitle->getDBkey();
 530                                 $image = new Image( $wgTitle );
 531                                 if( $image->exists() ) {
 532                                         $link = htmlspecialchars( $image->getURL() );
 533                                         $style = $this->getInternalLinkAttributes( $link, $name );
 534                                         $s .= " | <a href=\"{$link}\"{$style}>{$name}</a>";
 535                                 }
 536                         }
 537                 }
 538                 if ( 'history' == $action || isset( $diff ) || isset( $oldid ) ) {
 539                         $s .= ' | ' . $this->makeKnownLinkObj( $wgTitle,
 540                                         wfMsg( 'currentrev' ) );
 541                 }
 542
 543                 if ( $wgUser->getNewtalk() ) {
 544                 # do not show "You have new messages" text when we are viewing our
 545                 # own talk page
 546
 547                         if( !$wgTitle->equals( $wgUser->getTalkPage() ) ) {
 548                                 $tl = $this->makeKnownLinkObj( $wgUser->getTalkPage(),
 549                                                 wfMsg('newmessageslink') );
 550                                 $s.= ' | <strong>'. wfMsg( 'newmessages', $tl ) . '</strong>';
 551                                 # disable caching
 552                                 $wgOut->setSquidMaxage(0);
 553                                 $wgOut->enableClientCache(false);
 554                         }
 555                 }
 556
 557                 $undelete = $this->getUndeleteLink();
 558                 if( !empty( $undelete ) ) {
 559                         $s .= ' | '.$undelete;
 560                 }
 561                 return $s;
 562         }
 563
 564         function getUndeleteLink() {
 565                 global $wgUser, $wgTitle, $wgContLang, $action;
 566                 if(     (($wgTitle->getArticleId() == 0) || ($action == "history")) &&
 567                         ($n = $wgTitle->isDeleted() ) )
 568                 {
 569                         if ( $wgUser->isAllowed( 'delete' ) ) {
 570                                 $msg = 'thisisdeleted';
 571                         } else {
 572                                 $msg = 'viewdeleted';
 573                         }
 574                         return wfMsg( $msg,
 575                                 $this->makeKnownLink(
 576                                         $wgContLang->SpecialPage( 'Undelete/' . $wgTitle->getPrefixedDBkey() ),
 577                                         wfMsg( 'restorelink' . ($n == 1 ? '1' : ''), $n ) ) );
 578                 }
 579                 return '';
 580         }
 581
 582         function printableLink() {
 583                 global $wgOut, $wgFeedClasses, $wgRequest;
 584
 585                 $baseurl = $_SERVER['REQUEST_URI'];
 586                 if( strpos( '?', $baseurl ) == false ) {
 587                         $baseurl .= '?';
 588                 } else {
 589                         $baseurl .= '&';
 590                 }
 591                 $baseurl = htmlspecialchars( $baseurl );
 592                 $printurl = $wgRequest->escapeAppendQuery( 'printable=yes' );
 593
 594                 $s = "<a href=\"$printurl\">" . wfMsg( 'printableversion' ) . '</a>';
 595                 if( $wgOut->isSyndicated() ) {
 596                         foreach( $wgFeedClasses as $format => $class ) {
 597                                 $feedurl = $wgRequest->escapeAppendQuery( "feed=$format" );
 598                                 $s .= " | <a href=\"$feedurl\">{$format}</a>";
 599                         }
 600                 }
 601                 return $s;
 602         }
 603
 604         function pageTitle() {
 605                 global $wgOut, $wgTitle, $wgUser;
 606
 607                 $s = '<h1 class="pagetitle">' . htmlspecialchars( $wgOut->getPageTitle() ) . '</h1>';
 608                 return $s;
 609         }
 610
 611         function pageSubtitle() {
 612                 global $wgOut;
 613
 614                 $sub = $wgOut->getSubtitle();
 615                 if ( '' == $sub ) {
 616                         global $wgExtraSubtitle;
 617                         $sub = wfMsg( 'tagline' ) . $wgExtraSubtitle;
 618                 }
 619                 $subpages = $this->subPageSubtitle();
 620                 $sub .= !empty($subpages)?"</p><p class='subpages'>$subpages":'';
 621                 $s = "<p class='subtitle'>{$sub}</p>\n";
 622                 return $s;
 623         }
 624
 625         function subPageSubtitle() {
 626                 global $wgOut,$wgTitle,$wgNamespacesWithSubpages;
 627                 $subpages = '';
 628                 if($wgOut->isArticle() && !empty($wgNamespacesWithSubpages[$wgTitle->getNamespace()])) {
 629                         $ptext=$wgTitle->getPrefixedText();
 630                         if(preg_match('/\//',$ptext)) {
 631                                 $links = explode('/',$ptext);
 632                                 $c = 0;
 633                                 $growinglink = '';
 634                                 foreach($links as $link) {
 635                                         $c++;
 636                                         if ($c<count($links)) {
 637                                                 $growinglink .= $link;
 638                                                 $getlink = $this->makeLink( $growinglink, $link );
 639                                                 if(preg_match('/class="new"/i',$getlink)) { break; } # this is a hack, but it saves time
 640                                                 if ($c>1) {
 641                                                         $subpages .= ' | ';
 642                                                 } else  {
 643                                                         $subpages .= '&lt; ';
 644                                                 }
 645                                                 $subpages .= $getlink;
 646                                                 $growinglink .= '/';
 647                                         }
 648                                 }
 649                         }
 650                 }
 651                 return $subpages;
 652         }
 653
 654         function nameAndLogin() {
 655                 global $wgUser, $wgTitle, $wgLang, $wgContLang, $wgShowIPinHeader;
 656
 657                 $li = $wgContLang->specialPage( 'Userlogin' );
 658                 $lo = $wgContLang->specialPage( 'Userlogout' );
 659
 660                 $s = '';
 661                 if ( $wgUser->isAnon() ) {
 662                         if( $wgShowIPinHeader && isset( $_COOKIE[ini_get('session.name')] ) ) {
 663                                 $n = wfGetIP();
 664
 665                                 $tl = $this->makeKnownLinkObj( $wgUser->getTalkPage(),
 666                                   $wgLang->getNsText( NS_TALK ) );
 667
 668                                 $s .= $n . ' ('.$tl.')';
 669                         } else {
 670                                 $s .= wfMsg('notloggedin');
 671                         }
 672
 673                         $rt = $wgTitle->getPrefixedURL();
 674                         if ( 0 == strcasecmp( urlencode( $lo ), $rt ) ) {
 675                                 $q = '';
 676                         } else { $q = "returnto={$rt}"; }
 677
 678                         $s .= "\n<br />" . $this->makeKnownLinkObj(
 679                                 Title::makeTitle( NS_SPECIAL, 'Userlogin' ),
 680                                 wfMsg( 'login' ), $q );
 681                 } else {
 682                         $n = $wgUser->getName();
 683                         $rt = $wgTitle->getPrefixedURL();
 684                         $tl = $this->makeKnownLinkObj( $wgUser->getTalkPage(),
 685                           $wgLang->getNsText( NS_TALK ) );
 686
 687                         $tl = " ({$tl})";
 688
 689                         $s .= $this->makeKnownLinkObj( $wgUser->getUserPage(),
 690                           $n ) . "{$tl}<br />" .
 691                           $this->makeKnownLinkObj( Title::makeTitle( NS_SPECIAL, 'Userlogout' ), wfMsg( 'logout' ),
 692                           "returnto={$rt}" ) . ' | ' .
 693                           $this->specialLink( 'preferences' );
 694                 }
 695                 $s .= ' | ' . $this->makeKnownLink( wfMsgForContent( 'helppage' ),
 696                   wfMsg( 'help' ) );
 697
 698                 return $s;
 699         }
 700
 701         function getSearchLink() {
 702                 $searchPage =& Title::makeTitle( NS_SPECIAL, 'Search' );
 703                 return $searchPage->getLocalURL();
 704         }
 705
 706         function escapeSearchLink() {
 707                 return htmlspecialchars( $this->getSearchLink() );
 708         }
 709
 710         function searchForm() {
 711                 global $wgRequest;
 712                 $search = $wgRequest->getText( 'search' );
 713
 714                 $s = '<form name="search" class="inline" method="post" action="'
 715                   . $this->escapeSearchLink() . "\">\n"
 716                   . '<input type="text" name="search" size="19" value="'
 717                   . htmlspecialchars(substr($search,0,256)) . "\" />\n"
 718                   . '<input type="submit" name="go" value="' . wfMsg ('go') . '" />&nbsp;'
 719                   . '<input type="submit" name="fulltext" value="' . wfMsg ('search') . "\" />\n</form>";
 720
 721                 return $s;
 722         }
 723
 724         function topLinks() {
 725                 global $wgOut;
 726                 $sep = " |\n";
 727
 728                 $s = $this->mainPageLink() . $sep
 729                   . $this->specialLink( 'recentchanges' );
 730
 731                 if ( $wgOut->isArticleRelated() ) {
 732                         $s .=  $sep . $this->editThisPage()
 733                           . $sep . $this->historyLink();
 734                 }
 735                 # Many people don't like this dropdown box
 736                 #$s .= $sep . $this->specialPagesList();
 737
 738                 /* show links to different language variants */
 739                 global $wgDisableLangConversion, $wgContLang, $wgTitle;
 740                 $variants = $wgContLang->getVariants();
 741                 if( !$wgDisableLangConversion && sizeof( $variants ) > 1 ) {
 742                         foreach( $variants as $code ) {
 743                                 $varname = $wgContLang->getVariantname( $code );
 744                                 if( $varname == 'disable' )
 745                                         continue;
 746                                 $s .= ' | <a href="' . $wgTitle->getLocalUrl( 'variant=' . $code ) . '">' . $varname . '</a>';
 747                         }
 748                 }
 749
 750                 return $s;
 751         }
 752
 753         function bottomLinks() {
 754                 global $wgOut, $wgUser, $wgTitle, $wgUseTrackbacks;
 755                 $sep = " |\n";
 756
 757                 $s = '';
 758                 if ( $wgOut->isArticleRelated() ) {
 759                         $s .= '<strong>' . $this->editThisPage() . '</strong>';
 760                         if ( $wgUser->isLoggedIn() ) {
 761                                 $s .= $sep . $this->watchThisPage();
 762                         }
 763                         $s .= $sep . $this->talkLink()
 764                           . $sep . $this->historyLink()
 765                           . $sep . $this->whatLinksHere()
 766                           . $sep . $this->watchPageLinksLink();
 767
 768                         if ($wgUseTrackbacks)
 769                                 $s .= $sep . $this->trackbackLink();
 770
 771                         if ( $wgTitle->getNamespace() == NS_USER
 772                             || $wgTitle->getNamespace() == NS_USER_TALK )
 773
 774                         {
 775                                 $id=User::idFromName($wgTitle->getText());
 776                                 $ip=User::isIP($wgTitle->getText());
 777
 778                                 if($id || $ip) { # both anons and non-anons have contri list
 779                                         $s .= $sep . $this->userContribsLink();
 780                                 }
 781                                 if( $this->showEmailUser( $id ) ) {
 782                                         $s .= $sep . $this->emailUserLink();
 783                                 }
 784                         }
 785                         if ( $wgTitle->getArticleId() ) {
 786                                 $s .= "\n<br />";
 787                                 if($wgUser->isAllowed('delete')) { $s .= $this->deleteThisPage(); }
 788                                 if($wgUser->isAllowed('protect')) { $s .= $sep . $this->protectThisPage(); }
 789                                 if($wgUser->isAllowed('move')) { $s .= $sep . $this->moveThisPage(); }
 790                         }
 791                         $s .= "<br />\n" . $this->otherLanguages();
 792                 }
 793                 return $s;
 794         }
 795
 796         function pageStats() {
 797                 global $wgOut, $wgLang, $wgArticle, $wgRequest, $wgUser;
 798                 global $wgDisableCounters, $wgMaxCredits, $wgShowCreditsIfMax, $wgTitle, $wgPageShowWatchingUsers;
 799
 800                 extract( $wgRequest->getValues( 'oldid', 'diff' ) );
 801                 if ( ! $wgOut->isArticle() ) { return ''; }
 802                 if ( isset( $oldid ) || isset( $diff ) ) { return ''; }
 803                 if ( 0 == $wgArticle->getID() ) { return ''; }
 804
 805                 $s = '';
 806                 if ( !$wgDisableCounters ) {
 807                         $count = $wgLang->formatNum( $wgArticle->getCount() );
 808                         if ( $count ) {
 809                                 $s = wfMsg( 'viewcount', $count );
 810                         }
 811                 }
 812
 813                 if (isset($wgMaxCredits) && $wgMaxCredits != 0) {
 814                     require_once('Credits.php');
 815                     $s .= ' ' . getCredits($wgArticle, $wgMaxCredits, $wgShowCreditsIfMax);
 816                 } else {
 817                     $s .= $this->lastModified();
 818                 }
 819
 820                 if ($wgPageShowWatchingUsers && $wgUser->getOption( 'shownumberswatching' )) {
 821                         $dbr =& wfGetDB( DB_SLAVE );
 822                         extract( $dbr->tableNames( 'watchlist' ) );
 823                         $sql = "SELECT COUNT(*) AS n FROM $watchlist
 824                                 WHERE wl_title='" . $dbr->strencode($wgTitle->getDBKey()) .
 825                                 "' AND  wl_namespace=" . $wgTitle->getNamespace() ;
 826                         $res = $dbr->query( $sql, 'Skin::pageStats');
 827                         $x = $dbr->fetchObject( $res );
 828                         $s .= ' ' . wfMsg('number_of_watching_users_pageview', $x->n );
 829                 }
 830
 831                 return $s . ' ' .  $this->getCopyright();
 832         }
 833
 834         function getCopyright() {
 835                 global $wgRightsPage, $wgRightsUrl, $wgRightsText, $wgRequest;
 836
 837
 838                 $oldid = $wgRequest->getVal( 'oldid' );
 839                 $diff = $wgRequest->getVal( 'diff' );
 840
 841                 if ( !is_null( $oldid ) && is_null( $diff ) && wfMsgForContent( 'history_copyright' ) !== '-' ) {
 842                         $msg = 'history_copyright';
 843                 } else {
 844                         $msg = 'copyright';
 845                 }
 846
 847                 $out = '';
 848                 if( $wgRightsPage ) {
 849                         $link = $this->makeKnownLink( $wgRightsPage, $wgRightsText );
 850                 } elseif( $wgRightsUrl ) {
 851                         $link = $this->makeExternalLink( $wgRightsUrl, $wgRightsText );
 852                 } else {
 853                         # Give up now
 854                         return $out;
 855                 }
 856                 $out .= wfMsgForContent( $msg, $link );
 857                 return $out;
 858         }
 859
 860         function getCopyrightIcon() {
 861                 global $wgRightsPage, $wgRightsUrl, $wgRightsText, $wgRightsIcon, $wgCopyrightIcon;
 862                 $out = '';
 863                 if ( isset( $wgCopyrightIcon ) && $wgCopyrightIcon ) {
 864                         $out = $wgCopyrightIcon;
 865                 } else if ( $wgRightsIcon ) {
 866                         $icon = htmlspecialchars( $wgRightsIcon );
 867                         if ( $wgRightsUrl ) {
 868                                 $url = htmlspecialchars( $wgRightsUrl );
 869                                 $out .= '<a href="'.$url.'">';
 870                         }
 871                         $text = htmlspecialchars( $wgRightsText );
 872                         $out .= "<img src=\"$icon\" alt='$text' />";
 873                         if ( $wgRightsUrl ) {
 874                                 $out .= '</a>';
 875                         }
 876                 }
 877                 return $out;
 878         }
 879
 880         function getPoweredBy() {
 881                 global $wgStylePath;
 882                 $url = htmlspecialchars( "$wgStylePath/common/images/poweredby_mediawiki_88x31.png" );
 883                 $img = '<a href="http://www.mediawiki.org/"><img src="'.$url.'" alt="MediaWiki" /></a>';
 884                 return $img;
 885         }
 886
 887         function lastModified() {
 888                 global $wgLang, $wgArticle, $wgLoadBalancer;
 889
 890                 $timestamp = $wgArticle->getTimestamp();
 891                 if ( $timestamp ) {
 892                         $d = $wgLang->timeanddate( $timestamp, true );
 893                         $s = ' ' . wfMsg( 'lastmodified', $d );
 894                 } else {
 895                         $s = '';
 896                 }
 897                 if ( $wgLoadBalancer->getLaggedSlaveMode() ) {
 898                         $s .= ' <strong>' . wfMsg( 'laggedslavemode' ) . '</strong>';
 899                 }
 900                 return $s;
 901         }
 902
 903         function logoText( $align = '' ) {
 904                 if ( '' != $align ) { $a = " align='{$align}'"; }
 905                 else { $a = ''; }
 906
 907                 $mp = wfMsg( 'mainpage' );
 908                 $titleObj = Title::newFromText( $mp );
 909                 if ( is_object( $titleObj ) ) {
 910                         $url = $titleObj->escapeLocalURL();
 911                 } else {
 912                         $url = '';
 913                 }
 914
 915                 $logourl = $this->getLogo();
 916                 $s = "<a href='{$url}'><img{$a} src='{$logourl}' alt='[{$mp}]' /></a>";
 917                 return $s;
 918         }
 919
 920         /**
 921          * show a drop-down box of special pages
 922          * @TODO crash bug913. Need to be rewrote completly.
 923          */
 924         function specialPagesList() {
 925                 global $wgUser, $wgOut, $wgContLang, $wgServer, $wgRedirectScript, $wgAvailableRights;
 926                 require_once('SpecialPage.php');
 927                 $a = array();
 928                 $pages = SpecialPage::getPages();
 929
 930                 // special pages without access restriction
 931                 foreach ( $pages[''] as $name => $page ) {
 932                         $a[$name] = $page->getDescription();
 933                 }
 934
 935                 // Other special pages that are restricted.
 936                 // Copied from SpecialSpecialpages.php
 937                 foreach($wgAvailableRights as $right) {
 938                         if( $wgUser->isAllowed($right) ) {
 939                                 /** Add all pages for this right */
 940                                 if(isset($pages[$right])) {
 941                                         foreach($pages[$right] as $name => $page) {
 942                                         $a[$name] = $page->getDescription();
 943                                         }
 944                                 }
 945                         }
 946                 }
 947
 948                 $go = wfMsg( 'go' );
 949                 $sp = wfMsg( 'specialpages' );
 950                 $spp = $wgContLang->specialPage( 'Specialpages' );
 951
 952                 $s = '<form id="specialpages" method="get" class="inline" ' .
 953                   'action="' . htmlspecialchars( "{$wgServer}{$wgRedirectScript}" ) . "\">\n";
 954                 $s .= "<select name=\"wpDropdown\">\n";
 955                 $s .= "<option value=\"{$spp}\">{$sp}</option>\n";
 956
 957
 958                 foreach ( $a as $name => $desc ) {
 959                         $p = $wgContLang->specialPage( $name );
 960                         $s .= "<option value=\"{$p}\">{$desc}</option>\n";
 961                 }
 962                 $s .= "</select>\n";
 963                 $s .= "<input type='submit' value=\"{$go}\" name='redirect' />\n";
 964                 $s .= "</form>\n";
 965                 return $s;
 966         }
 967
 968         function mainPageLink() {
 969                 $mp = wfMsgForContent( 'mainpage' );
 970                 $mptxt = wfMsg( 'mainpage');
 971                 $s = $this->makeKnownLink( $mp, $mptxt );
 972                 return $s;
 973         }
 974
 975         function copyrightLink() {
 976                 $s = $this->makeKnownLink( wfMsgForContent( 'copyrightpage' ),
 977                   wfMsg( 'copyrightpagename' ) );
 978                 return $s;
 979         }
 980
 981         function aboutLink() {
 982                 $s = $this->makeKnownLink( wfMsgForContent( 'aboutpage' ),
 983                   wfMsg( 'aboutsite' ) );
 984                 return $s;
 985         }
 986
 987
 988         function disclaimerLink() {
 989                 $disclaimers = wfMsg( 'disclaimers' );
 990                 if ($disclaimers == '-') {
 991                         return '';
 992                 } else {
 993                         return $this->makeKnownLink( wfMsgForContent( 'disclaimerpage' ),
 994                                                      $disclaimers );
 995                 }
 996         }
 997
 998         function editThisPage() {
 999                 global $wgOut, $wgTitle, $wgRequest;
1000
1001                 $oldid = $wgRequest->getVal( 'oldid' );
1002                 $diff = $wgRequest->getVal( 'diff' );
1003                 $redirect = $wgRequest->getVal( 'redirect' );
1004
1005                 if ( ! $wgOut->isArticleRelated() ) {
1006                         $s = wfMsg( 'protectedpage' );
1007                 } else {
1008                         if ( $wgTitle->userCanEdit() ) {
1009                                 $t = wfMsg( 'editthispage' );
1010                         } else {
1011                                 $t = wfMsg( 'viewsource' );
1012                         }
1013                         $oid = $red = '';
1014
1015                         if ( !is_null( $redirect ) ) { $red = "&redirect={$redirect}"; }
1016                         if ( $oldid && ! isset( $diff ) ) {
1017                                 $oid = '&oldid='.$oldid;
1018                         }
1019                         $s = $this->makeKnownLinkObj( $wgTitle, $t, "action=edit{$oid}{$red}" );
1020                 }
1021                 return $s;
1022         }
1023
1024         function deleteThisPage() {
1025                 global $wgUser, $wgOut, $wgTitle, $wgRequest;
1026
1027                 $diff = $wgRequest->getVal( 'diff' );
1028                 if ( $wgTitle->getArticleId() && ( ! $diff ) && $wgUser->isAllowed('delete') ) {
1029                         $t = wfMsg( 'deletethispage' );
1030
1031                         $s = $this->makeKnownLinkObj( $wgTitle, $t, 'action=delete' );
1032                 } else {
1033                         $s = '';
1034                 }
1035                 return $s;
1036         }
1037
1038         function protectThisPage() {
1039                 global $wgUser, $wgOut, $wgTitle, $wgRequest;
1040
1041                 $diff = $wgRequest->getVal( 'diff' );
1042                 if ( $wgTitle->getArticleId() && ( ! $diff ) && $wgUser->isAllowed('protect') ) {
1043                         if ( $wgTitle->isProtected() ) {
1044                                 $t = wfMsg( 'unprotectthispage' );
1045                                 $q = 'action=unprotect';
1046                         } else {
1047                                 $t = wfMsg( 'protectthispage' );
1048                                 $q = 'action=protect';
1049                         }
1050                         $s = $this->makeKnownLinkObj( $wgTitle, $t, $q );
1051                 } else {
1052                         $s = '';
1053                 }
1054                 return $s;
1055         }
1056
1057         function watchThisPage() {
1058                 global $wgUser, $wgOut, $wgTitle;
1059
1060                 if ( $wgOut->isArticleRelated() ) {
1061                         if ( $wgTitle->userIsWatching() ) {
1062                                 $t = wfMsg( 'unwatchthispage' );
1063                                 $q = 'action=unwatch';
1064                         } else {
1065                                 $t = wfMsg( 'watchthispage' );
1066                                 $q = 'action=watch';
1067                         }
1068                         $s = $this->makeKnownLinkObj( $wgTitle, $t, $q );
1069                 } else {
1070                         $s = wfMsg( 'notanarticle' );
1071                 }
1072                 return $s;
1073         }
1074
1075         function moveThisPage() {
1076                 global $wgTitle;
1077
1078                 if ( $wgTitle->userCanMove() ) {
1079                         return $this->makeKnownLinkObj( Title::makeTitle( NS_SPECIAL, 'Movepage' ),
1080                           wfMsg( 'movethispage' ), 'target=' . $wgTitle->getPrefixedURL() );
1081                 } else {
1082                         // no message if page is protected - would be redundant
1083                         return '';
1084                 }
1085         }
1086
1087         function historyLink() {
1088                 global $wgTitle;
1089
1090                 return $this->makeKnownLinkObj( $wgTitle,
1091                   wfMsg( 'history' ), 'action=history' );
1092         }
1093
1094         function whatLinksHere() {
1095                 global $wgTitle;
1096
1097                 return $this->makeKnownLinkObj( Title::makeTitle( NS_SPECIAL, 'Whatlinkshere' ),
1098                   wfMsg( 'whatlinkshere' ), 'target=' . $wgTitle->getPrefixedURL() );
1099         }
1100
1101         function userContribsLink() {
1102                 global $wgTitle;
1103
1104                 return $this->makeKnownLinkObj( Title::makeTitle( NS_SPECIAL, 'Contributions' ),
1105                   wfMsg( 'contributions' ), 'target=' . $wgTitle->getPartialURL() );
1106         }
1107
1108         function showEmailUser( $id ) {
1109                 global $wgEnableEmail, $wgEnableUserEmail, $wgUser;
1110                 return $wgEnableEmail &&
1111                        $wgEnableUserEmail &&
1112                        $wgUser->isLoggedIn() && # show only to signed in users
1113                        0 != $id; # we can only email to non-anons ..
1114 #                      '' != $id->getEmail() && # who must have an email address stored ..
1115 #                      0 != $id->getEmailauthenticationtimestamp() && # .. which is authenticated
1116 #                      1 != $wgUser->getOption('disablemail'); # and not disabled
1117         }
1118
1119         function emailUserLink() {
1120                 global $wgTitle;
1121
1122                 return $this->makeKnownLinkObj( Title::makeTitle( NS_SPECIAL, 'Emailuser' ),
1123                   wfMsg( 'emailuser' ), 'target=' . $wgTitle->getPartialURL() );
1124         }
1125
1126         function watchPageLinksLink() {
1127                 global $wgOut, $wgTitle;
1128
1129                 if ( ! $wgOut->isArticleRelated() ) {
1130                         return '(' . wfMsg( 'notanarticle' ) . ')';
1131                 } else {
1132                         return $this->makeKnownLinkObj( Title::makeTitle( NS_SPECIAL,
1133                           'Recentchangeslinked' ), wfMsg( 'recentchangeslinked' ),
1134                           'target=' . $wgTitle->getPrefixedURL() );
1135                 }
1136         }
1137
1138         function trackbackLink() {
1139                 global $wgTitle;
1140
1141                 return "<a href=\"" . $wgTitle->trackbackURL() . "\">"
1142                         . wfMsg('trackbacklink') . "</a>";
1143         }
1144
1145         function otherLanguages() {
1146                 global $wgOut, $wgContLang, $wgTitle, $wgHideInterlanguageLinks;
1147
1148                 if ( $wgHideInterlanguageLinks ) {
1149                         return '';
1150                 }
1151
1152                 $a = $wgOut->getLanguageLinks();
1153                 if ( 0 == count( $a ) ) {
1154                         return '';
1155                 }
1156
1157                 $s = wfMsg( 'otherlanguages' ) . ': ';
1158                 $first = true;
1159                 if($wgContLang->isRTL()) $s .= '<span dir="LTR">';
1160                 foreach( $a as $l ) {
1161                         if ( ! $first ) { $s .= ' | '; }
1162                         $first = false;
1163
1164                         $nt = Title::newFromText( $l );
1165                         $url = $nt->escapeFullURL();
1166                         $text = $wgContLang->getLanguageName( $nt->getInterwiki() );
1167
1168                         if ( '' == $text ) { $text = $l; }
1169                         $style = $this->getExternalLinkAttributes( $l, $text );
1170                         $s .= "<a href=\"{$url}\"{$style}>{$text}</a>";
1171                 }
1172                 if($wgContLang->isRTL()) $s .= '</span>';
1173                 return $s;
1174         }
1175
1176         function bugReportsLink() {
1177                 $s = $this->makeKnownLink( wfMsgForContent( 'bugreportspage' ),
1178                   wfMsg( 'bugreports' ) );
1179                 return $s;
1180         }
1181
1182         function dateLink() {
1183                 global $wgLinkCache;
1184                 $t1 = Title::newFromText( gmdate( 'F j' ) );
1185                 $t2 = Title::newFromText( gmdate( 'Y' ) );
1186
1187                 $wgLinkCache->suspend();
1188                 $id = $t1->getArticleID();
1189                 $wgLinkCache->resume();
1190
1191                 if ( 0 == $id ) {
1192                         $s = $this->makeBrokenLink( $t1->getText() );
1193                 } else {
1194                         $s = $this->makeKnownLink( $t1->getText() );
1195                 }
1196                 $s .= ', ';
1197
1198                 $wgLinkCache->suspend();
1199                 $id = $t2->getArticleID();
1200                 $wgLinkCache->resume();
1201
1202                 if ( 0 == $id ) {
1203                         $s .= $this->makeBrokenLink( $t2->getText() );
1204                 } else {
1205                         $s .= $this->makeKnownLink( $t2->getText() );
1206                 }
1207                 return $s;
1208         }
1209
1210         function talkLink() {
1211                 global $wgTitle, $wgLinkCache;
1212
1213                 if ( NS_SPECIAL == $wgTitle->getNamespace() ) {
1214                         # No discussion links for special pages
1215                         return '';
1216                 }
1217
1218                 if( $wgTitle->isTalkPage() ) {
1219                         $link = $wgTitle->getSubjectPage();
1220                         switch( $link->getNamespace() ) {
1221                         case NS_MAIN:
1222                                 $text = wfMsg('articlepage');
1223                                 break;
1224                         case NS_USER:
1225                                 $text = wfMsg('userpage');
1226                                 break;
1227                         case NS_PROJECT:
1228                                 $text = wfMsg('wikipediapage');
1229                                 break;
1230                         case NS_IMAGE:
1231                                 $text = wfMsg('imagepage');
1232                                 break;
1233                         default:
1234                                 $text= wfMsg('articlepage');
1235                         }
1236                 } else {
1237                         $link = $wgTitle->getTalkPage();
1238                         $text = wfMsg( 'talkpage' );
1239                 }
1240
1241                 $wgLinkCache->suspend();
1242                 $s = $this->makeLinkObj( $link, $text );
1243                 $wgLinkCache->resume();
1244
1245                 return $s;
1246         }
1247
1248         function commentLink() {
1249                 global $wgContLang, $wgTitle, $wgLinkCache;
1250
1251                 if ( $wgTitle->getNamespace() == NS_SPECIAL ) {
1252                         return '';
1253                 }
1254                 return $this->makeKnownLinkObj( $wgTitle->getTalkPage(),
1255                         wfMsg( 'postcomment' ), 'action=edit&section=new' );
1256         }
1257
1258         /* these are used extensively in SkinPHPTal, but also some other places */
1259         /*static*/ function makeSpecialUrl( $name, $urlaction='' ) {
1260                 $title = Title::makeTitle( NS_SPECIAL, $name );
1261                 return $title->getLocalURL( $urlaction );
1262         }
1263
1264         /*static*/ function makeI18nUrl ( $name, $urlaction='' ) {
1265                 $title = Title::newFromText( wfMsgForContent($name) );
1266                 $this->checkTitle($title, $name);
1267                 return $title->getLocalURL( $urlaction );
1268         }
1269
1270         /*static*/ function makeUrl ( $name, $urlaction='' ) {
1271                 $title = Title::newFromText( $name );
1272                 $this->checkTitle($title, $name);
1273                 return $title->getLocalURL( $urlaction );
1274         }
1275
1276         # If url string starts with http, consider as external URL, else
1277         # internal
1278         /*static*/ function makeInternalOrExternalUrl( $name ) {
1279                 if ( preg_match( '/^(?:' . wfUrlProtocols() . ')/', $name ) ) {
1280                         return $name;
1281                 } else {
1282                         return $this->makeUrl( $name );
1283                 }
1284         }
1285
1286         # this can be passed the NS number as defined in Language.php
1287         /*static*/ function makeNSUrl( $name, $urlaction='', $namespace=NS_MAIN ) {
1288                 $title = Title::makeTitleSafe( $namespace, $name );
1289                 $this->checkTitle($title, $name);
1290                 return $title->getLocalURL( $urlaction );
1291         }
1292
1293         /* these return an array with the 'href' and boolean 'exists' */
1294         /*static*/ function makeUrlDetails ( $name, $urlaction='' ) {
1295                 $title = Title::newFromText( $name );
1296                 $this->checkTitle($title, $name);
1297                 return array(
1298                         'href' => $title->getLocalURL( $urlaction ),
1299                         'exists' => $title->getArticleID() != 0?true:false
1300                 );
1301         }
1302
1303         /**
1304          * Make URL details where the article exists (or at least it's convenient to think so)
1305          */
1306         function makeKnownUrlDetails( $name, $urlaction='' ) {
1307                 $title = Title::newFromText( $name );
1308                 $this->checkTitle($title, $name);
1309                 return array(
1310                         'href' => $title->getLocalURL( $urlaction ),
1311                         'exists' => true
1312                 );
1313         }
1314
1315         # make sure we have some title to operate on
1316         /*static*/ function checkTitle ( &$title, &$name ) {
1317                 if(!is_object($title)) {
1318                         $title = Title::newFromText( $name );
1319                         if(!is_object($title)) {
1320                                 $title = Title::newFromText( '--error: link target missing--' );
1321                         }
1322                 }
1323         }
1324
1325         /**
1326          * Build an array that represents the sidebar(s), the navigation bar among them
1327          *
1328          * @return array
1329          * @access private
1330          */
1331         function buildSidebar() {
1332                 global $wgTitle, $action;
1333
1334                 $fname = 'SkinTemplate::buildSidebar';
1335                 $pageurl = $wgTitle->getLocalURL();
1336                 wfProfileIn( $fname );
1337
1338                 $bar = array();
1339                 $lines = explode( "\n", wfMsgForContent( 'sidebar' ) );
1340                 foreach ($lines as $line) {
1341                         if (strpos($line, '*') !== 0)
1342                                 continue;
1343                         if (strpos($line, '**') !== 0) {
1344                                 $line = trim($line, '* ');
1345                                 $heading = $line;
1346                         } else {
1347                                 if (strpos($line, '|') !== false) { // sanity check
1348                                         $line = explode( '|' , trim($line, '* '), 2 );
1349                                         $link = wfMsgForContent( $line[0] );
1350                                         if ($link == '-')
1351                                                 continue;
1352                                         if (wfEmptyMsg($line[1], $text = wfMsg($line[1])))
1353                                                 $text = $line[1];
1354                                         if (wfEmptyMsg($line[0], $link))
1355                                                 $link = $line[0];
1356                                         $href = $this->makeInternalOrExternalUrl( $link );
1357                                         $bar[$heading][] = array(
1358                                                 'text' => $text,
1359                                                 'href' => $href,
1360                                                 'id' => 'n-' . strtr($line[1], ' ', '-'),
1361                                                 'active' => $pageurl == $href
1362                                         );
1363                                 } else { continue; }
1364                         }
1365                 }
1366
1367                 wfProfileOut( $fname );
1368                 return $bar;
1369         }
1370 }
1371
1372 }
1373 ?>