includes/Skin.php

   1 <?php
   2 /**
   3  * @defgroup Skins Skins
   4  */
   5
   6 if ( ! defined( 'MEDIAWIKI' ) )
   7         die( 1 );
   8
   9 /**
  10  * The main skin class that provide methods and properties for all other skins.
  11  * This base class is also the "Standard" skin.
  12  *
  13  * See docs/skin.txt for more information.
  14  *
  15  * @ingroup Skins
  16  */
  17 class Skin extends Linker {
  18         /**#@+
  19          * @private
  20          */
  21         var $mWatchLinkNum = 0; // Appended to end of watch link id's
  22         // How many search boxes have we made?  Avoid duplicate id's.
  23         protected $searchboxes = '';
  24         /**#@-*/
  25         protected $mRevisionId; // The revision ID we're looking at, null if not applicable.
  26         protected $skinname = 'standard' ;
  27
  28         /** Constructor, call parent constructor */
  29         function Skin() { parent::__construct(); }
  30
  31         /**
  32          * Fetch the set of available skins.
  33          * @return array of strings
  34          * @static
  35          */
  36         static function getSkinNames() {
  37                 global $wgValidSkinNames;
  38                 static $skinsInitialised = false;
  39                 if ( !$skinsInitialised ) {
  40                         # Get a list of available skins
  41                         # Build using the regular expression '^(.*).php$'
  42                         # Array keys are all lower case, array value keep the case used by filename
  43                         #
  44                         wfProfileIn( __METHOD__ . '-init' );
  45                         global $wgStyleDirectory;
  46                         $skinDir = dir( $wgStyleDirectory );
  47
  48                         # while code from www.php.net
  49                         while (false !== ($file = $skinDir->read())) {
  50                                 // Skip non-PHP files, hidden files, and '.dep' includes
  51                                 $matches = array();
  52                                 if(preg_match('/^([^.]*)\.php$/',$file, $matches)) {
  53                                         $aSkin = $matches[1];
  54                                         $wgValidSkinNames[strtolower($aSkin)] = $aSkin;
  55                                 }
  56                         }
  57                         $skinDir->close();
  58                         $skinsInitialised = true;
  59                         wfProfileOut( __METHOD__ . '-init' );
  60                 }
  61                 return $wgValidSkinNames;
  62         }
  63
  64         /**
  65          * Fetch the list of usable skins in regards to $wgSkipSkins.
  66          * Useful for Special:Preferences and other places where you
  67          * only want to show skins users _can_ use.
  68          * @return array of strings
  69          */
  70         public static function getUsableSkins() {
  71                 global $wgSkipSkins;
  72                 $usableSkins = self::getSkinNames();
  73                 foreach ( $wgSkipSkins as $skip ) {
  74                         unset( $usableSkins[$skip] );
  75                 }
  76                 return $usableSkins;
  77         }
  78
  79         /**
  80          * Normalize a skin preference value to a form that can be loaded.
  81          * If a skin can't be found, it will fall back to the configured
  82          * default (or the old 'Classic' skin if that's broken).
  83          * @param string $key
  84          * @return string
  85          * @static
  86          */
  87         static function normalizeKey( $key ) {
  88                 global $wgDefaultSkin;
  89                 $skinNames = Skin::getSkinNames();
  90
  91                 if( $key == '' ) {
  92                         // Don't return the default immediately;
  93                         // in a misconfiguration we need to fall back.
  94                         $key = $wgDefaultSkin;
  95                 }
  96
  97                 if( isset( $skinNames[$key] ) ) {
  98                         return $key;
  99                 }
 100
 101                 // Older versions of the software used a numeric setting
 102                 // in the user preferences.
 103                 $fallback = array(
 104                         0 => $wgDefaultSkin,
 105                         1 => 'nostalgia',
 106                         2 => 'cologneblue' );
 107
 108                 if( isset( $fallback[$key] ) ){
 109                         $key = $fallback[$key];
 110                 }
 111
 112                 if( isset( $skinNames[$key] ) ) {
 113                         return $key;
 114                 } else {
 115                         return 'monobook';
 116                 }
 117         }
 118
 119         /**
 120          * Factory method for loading a skin of a given type
 121          * @param string $key 'monobook', 'standard', etc
 122          * @return Skin
 123          * @static
 124          */
 125         static function &newFromKey( $key ) {
 126                 global $wgStyleDirectory, $wgAutoloadClasses;
 127
 128                 $key = Skin::normalizeKey( $key );
 129
 130                 $skinNames = Skin::getSkinNames();
 131                 $skinName = $skinNames[$key];
 132                 $className = 'Skin'.ucfirst($key);
 133
 134                 # Grab the skin class and initialise it.
 135                 # Use autoloader if it is set in $wgAutoloadClasses.
 136                 if( !class_exists( $className, isset($wgAutoloadClasses[$className]) ) ) {
 137                         // Preload base classes to work around APC/PHP5 bug
 138                         $deps = "{$wgStyleDirectory}/{$skinName}.deps.php";
 139                         if( file_exists( $deps ) ) include_once( $deps );
 140                         require_once( "{$wgStyleDirectory}/{$skinName}.php" );
 141
 142                         # Check if we got if not failback to default skin
 143                         if( !class_exists( $className ) ) {
 144                                 # DO NOT die if the class isn't found. This breaks maintenance
 145                                 # scripts and can cause a user account to be unrecoverable
 146                                 # except by SQL manipulation if a previously valid skin name
 147                                 # is no longer valid.
 148                                 wfDebug( "Skin class does not exist: $className\n" );
 149                                 $className = 'SkinMonobook';
 150                                 require_once( "{$wgStyleDirectory}/MonoBook.php" );
 151                         }
 152                 }
 153                 $skin = new $className;
 154                 return $skin;
 155         }
 156
 157         /** @return string path to the skin stylesheet */
 158         function getStylesheet() {
 159                 return 'common/wikistandard.css';
 160         }
 161
 162         /** @return string skin name */
 163         public function getSkinName() {
 164                 return $this->skinname;
 165         }
 166
 167         function qbSetting() {
 168                 global $wgOut, $wgUser;
 169
 170                 if ( $wgOut->isQuickbarSuppressed() ) { return 0; }
 171                 $q = $wgUser->getOption( 'quickbar', 0 );
 172                 return $q;
 173         }
 174
 175         function initPage( OutputPage $out ) {
 176                 global $wgFavicon, $wgAppleTouchIcon;
 177
 178                 wfProfileIn( __METHOD__ );
 179
 180                 # Generally the order of the favicon and apple-touch-icon links
 181                 # should not matter, but Konqueror (3.5.9 at least) incorrectly
 182                 # uses whichever one appears later in the HTML source.  Make sure
 183                 # apple-touch-icon is specified first to avoid this.
 184                 if( false !== $wgAppleTouchIcon ) {
 185                         $out->addLink( array( 'rel' => 'apple-touch-icon', 'href' => $wgAppleTouchIcon ) );
 186                 }
 187
 188                 if( false !== $wgFavicon ) {
 189                         $out->addLink( array( 'rel' => 'shortcut icon', 'href' => $wgFavicon ) );
 190                 }
 191
 192                 # OpenSearch description link
 193                 $out->addLink( array(
 194                         'rel' => 'search',
 195                         'type' => 'application/opensearchdescription+xml',
 196                         'href' => wfScript( 'opensearch_desc' ),
 197                         'title' => wfMsgForContent( 'opensearch-desc' ),
 198                 ));
 199
 200                 $this->addMetadataLinks($out);
 201
 202                 $this->mRevisionId = $out->mRevisionId;
 203
 204                 $this->preloadExistence();
 205
 206                 wfProfileOut( __METHOD__ );
 207         }
 208
 209         /**
 210          * Preload the existence of three commonly-requested pages in a single query
 211          */
 212         function preloadExistence() {
 213                 global $wgUser, $wgTitle;
 214
 215                 // User/talk link
 216                 $titles = array( $wgUser->getUserPage(), $wgUser->getTalkPage() );
 217
 218                 // Other tab link
 219                 if ( $wgTitle->getNamespace() == NS_SPECIAL ) {
 220                         // nothing
 221                 } elseif ( $wgTitle->isTalkPage() ) {
 222                         $titles[] = $wgTitle->getSubjectPage();
 223                 } else {
 224                         $titles[] = $wgTitle->getTalkPage();
 225                 }
 226
 227                 $lb = new LinkBatch( $titles );
 228                 $lb->execute();
 229         }
 230
 231         function addMetadataLinks( OutputPage $out ) {
 232                 global $wgTitle, $wgEnableDublinCoreRdf, $wgEnableCreativeCommonsRdf;
 233                 global $wgRightsPage, $wgRightsUrl;
 234
 235                 if( $out->isArticleRelated() ) {
 236                         # note: buggy CC software only reads first "meta" link
 237                         if( $wgEnableCreativeCommonsRdf ) {
 238                                 $out->addMetadataLink( array(
 239                                         'title' => 'Creative Commons',
 240                                         'type' => 'application/rdf+xml',
 241                                         'href' => $wgTitle->getLocalURL( 'action=creativecommons') ) );
 242                         }
 243                         if( $wgEnableDublinCoreRdf ) {
 244                                 $out->addMetadataLink( array(
 245                                         'title' => 'Dublin Core',
 246                                         'type' => 'application/rdf+xml',
 247                                         'href' => $wgTitle->getLocalURL( 'action=dublincore' ) ) );
 248                         }
 249                 }
 250                 $copyright = '';
 251                 if( $wgRightsPage ) {
 252                         $copy = Title::newFromText( $wgRightsPage );
 253                         if( $copy ) {
 254                                 $copyright = $copy->getLocalURL();
 255                         }
 256                 }
 257                 if( !$copyright && $wgRightsUrl ) {
 258                         $copyright = $wgRightsUrl;
 259                 }
 260                 if( $copyright ) {
 261                         $out->addLink( array(
 262                                 'rel' => 'copyright',
 263                                 'href' => $copyright ) );
 264                 }
 265         }
 266
 267         function setMembers(){
 268                 global $wgTitle, $wgUser;
 269                 $this->mTitle = $wgTitle;
 270                 $this->mUser = $wgUser;
 271                 $this->userpage = $wgUser->getUserPage()->getPrefixedText();
 272                 $this->usercss = false;
 273         }
 274
 275         function outputPage( OutputPage $out ) {
 276                 global $wgDebugComments;
 277                 wfProfileIn( __METHOD__ );
 278
 279                 $this->setMembers();
 280                 $this->initPage( $out );
 281
 282                 // See self::afterContentHook() for documentation
 283                 $afterContent = $this->afterContentHook();
 284
 285                 $out->out( $out->headElement( $this ) );
 286
 287                 $out->out( "\n<body" );
 288                 $ops = $this->getBodyOptions();
 289                 foreach ( $ops as $name => $val ) {
 290                         $out->out( " $name='$val'" );
 291                 }
 292                 $out->out( ">\n" );
 293                 if ( $wgDebugComments ) {
 294                         $out->out( "<!-- Wiki debugging output:\n" .
 295                           $out->mDebugtext . "-->\n" );
 296                 }
 297
 298                 $out->out( $this->beforeContent() );
 299
 300                 $out->out( $out->mBodytext . "\n" );
 301
 302                 $out->out( $this->afterContent() );
 303
 304                 $out->out( $afterContent );
 305
 306                 $out->out( $this->bottomScripts() );
 307
 308                 $out->out( wfReportTime() );
 309
 310                 $out->out( "\n</body></html>" );
 311                 wfProfileOut( __METHOD__ );
 312         }
 313
 314         static function makeVariablesScript( $data ) {
 315                 global $wgJsMimeType;
 316
 317                 $r = array( "<script type= \"$wgJsMimeType\">/*<![CDATA[*/" );
 318                 foreach ( $data as $name => $value ) {
 319                         $encValue = Xml::encodeJsVar( $value );
 320                         $r[] = "var $name = $encValue;";
 321                 }
 322                 $r[] = "/*]]>*/</script>\n";
 323
 324                 return implode( "\n\t\t", $r );
 325         }
 326
 327         /**
 328          * Make a <script> tag containing global variables
 329          * @param array $data Associative array containing one element:
 330          *     skinname => the skin name
 331          * The odd calling convention is for backwards compatibility
 332          */
 333         static function makeGlobalVariablesScript( $data ) {
 334                 global $wgScript, $wgStylePath, $wgUser;
 335                 global $wgArticlePath, $wgScriptPath, $wgServer, $wgContLang, $wgLang;
 336                 global $wgTitle, $wgCanonicalNamespaceNames, $wgOut, $wgArticle;
 337                 global $wgBreakFrames, $wgRequest, $wgVariantArticlePath, $wgActionPaths;
 338                 global $wgUseAjax, $wgAjaxWatch;
 339                 global $wgVersion, $wgEnableAPI, $wgEnableWriteAPI;
 340                 global $wgRestrictionTypes, $wgLivePreview;
 341                 global $wgMWSuggestTemplate, $wgDBname, $wgEnableMWSuggest;
 342
 343                 $ns = $wgTitle->getNamespace();
 344                 $nsname = isset( $wgCanonicalNamespaceNames[ $ns ] ) ? $wgCanonicalNamespaceNames[ $ns ] : $wgTitle->getNsText();
 345                 $separatorTransTable = $wgContLang->separatorTransformTable();
 346                 $separatorTransTable = $separatorTransTable ? $separatorTransTable : array();
 347                 $compactSeparatorTransTable = array(
 348                         implode( "\t", array_keys( $separatorTransTable ) ),
 349                         implode( "\t", $separatorTransTable ),
 350                 );
 351                 $digitTransTable = $wgContLang->digitTransformTable();
 352                 $digitTransTable = $digitTransTable ? $digitTransTable : array();
 353                 $compactDigitTransTable = array(
 354                         implode( "\t", array_keys( $digitTransTable ) ),
 355                         implode( "\t", $digitTransTable ),
 356                 );
 357
 358                 $vars = array(
 359                         'skin' => $data['skinname'],
 360                         'stylepath' => $wgStylePath,
 361                         'wgArticlePath' => $wgArticlePath,
 362                         'wgScriptPath' => $wgScriptPath,
 363                         'wgScript' => $wgScript,
 364                         'wgVariantArticlePath' => $wgVariantArticlePath,
 365                         'wgActionPaths' => (object)$wgActionPaths,
 366                         'wgServer' => $wgServer,
 367                         'wgCanonicalNamespace' => $nsname,
 368                         'wgCanonicalSpecialPageName' => SpecialPage::resolveAlias( $wgTitle->getDBkey() ),
 369                         'wgNamespaceNumber' => $wgTitle->getNamespace(),
 370                         'wgPageName' => $wgTitle->getPrefixedDBKey(),
 371                         'wgTitle' => $wgTitle->getText(),
 372                         'wgAction' => $wgRequest->getText( 'action', 'view' ),
 373                         'wgArticleId' => $wgTitle->getArticleId(),
 374                         'wgIsArticle' => $wgOut->isArticle(),
 375                         'wgUserName' => $wgUser->isAnon() ? NULL : $wgUser->getName(),
 376                         'wgUserGroups' => $wgUser->isAnon() ? NULL : $wgUser->getEffectiveGroups(),
 377                         'wgUserLanguage' => $wgLang->getCode(),
 378                         'wgContentLanguage' => $wgContLang->getCode(),
 379                         'wgBreakFrames' => $wgBreakFrames,
 380                         'wgCurRevisionId' => isset( $wgArticle ) ? $wgArticle->getLatest() : 0,
 381                         'wgVersion' => $wgVersion,
 382                         'wgEnableAPI' => $wgEnableAPI,
 383                         'wgEnableWriteAPI' => $wgEnableWriteAPI,
 384                         'wgSeparatorTransformTable' => $compactSeparatorTransTable,
 385                         'wgDigitTransformTable' => $compactDigitTransTable,
 386                 );
 387
 388                 if( $wgUseAjax && $wgEnableMWSuggest && !$wgUser->getOption( 'disablesuggest', false )){
 389                         $vars['wgMWSuggestTemplate'] = SearchEngine::getMWSuggestTemplate();
 390                         $vars['wgDBname'] = $wgDBname;
 391                         $vars['wgSearchNamespaces'] = SearchEngine::userNamespaces( $wgUser );
 392                         $vars['wgMWSuggestMessages'] = array( wfMsg('search-mwsuggest-enabled'), wfMsg('search-mwsuggest-disabled'));
 393                 }
 394
 395                 foreach( $wgRestrictionTypes as $type )
 396                         $vars['wgRestriction' . ucfirst( $type )] = $wgTitle->getRestrictions( $type );
 397
 398                 if ( $wgLivePreview && $wgUser->getOption( 'uselivepreview' ) ) {
 399                         $vars['wgLivepreviewMessageLoading'] = wfMsg( 'livepreview-loading' );
 400                         $vars['wgLivepreviewMessageReady']   = wfMsg( 'livepreview-ready' );
 401                         $vars['wgLivepreviewMessageFailed']  = wfMsg( 'livepreview-failed' );
 402                         $vars['wgLivepreviewMessageError']   = wfMsg( 'livepreview-error' );
 403                 }
 404
 405                 if($wgUseAjax && $wgAjaxWatch && $wgUser->isLoggedIn() ) {
 406                         $msgs = (object)array();
 407                         foreach ( array( 'watch', 'unwatch', 'watching', 'unwatching' ) as $msgName ) {
 408                                 $msgs->{$msgName . 'Msg'} = wfMsg( $msgName );
 409                         }
 410                         $vars['wgAjaxWatch'] = $msgs;
 411                 }
 412
 413                 wfRunHooks('MakeGlobalVariablesScript', array(&$vars));
 414
 415                 return self::makeVariablesScript( $vars );
 416         }
 417
 418         function getHeadScripts( $allowUserJs ) {
 419                 global $wgStylePath, $wgUser, $wgJsMimeType, $wgStyleVersion;
 420
 421                 $vars = self::makeGlobalVariablesScript( array( 'skinname' => $this->getSkinName() ) );
 422
 423                 $r = array( "<script type=\"{$wgJsMimeType}\" src=\"{$wgStylePath}/common/wikibits.js?$wgStyleVersion\"></script>" );
 424                 global $wgUseSiteJs;
 425                 if ($wgUseSiteJs) {
 426                         $jsCache = $wgUser->isLoggedIn() ? '&smaxage=0' : '';
 427                         $r[] = "<script type=\"$wgJsMimeType\" src=\"".
 428                                 htmlspecialchars(self::makeUrl('-',
 429                                         "action=raw$jsCache&gen=js&useskin=" .
 430                                         urlencode( $this->getSkinName() ) ) ) .
 431                                 "\"><!-- site js --></script>";
 432                 }
 433                 if( $allowUserJs && $wgUser->isLoggedIn() ) {
 434                         $userpage = $wgUser->getUserPage();
 435                         $userjs = htmlspecialchars( self::makeUrl(
 436                                 $userpage->getPrefixedText().'/'.$this->getSkinName().'.js',
 437                                 'action=raw&ctype='.$wgJsMimeType));
 438                         $r[] = '<script type="'.$wgJsMimeType.'" src="'.$userjs."\"></script>";
 439                 }
 440                 return $vars . "\t\t" . implode ( "\n\t\t", $r );
 441         }
 442
 443         /**
 444          * To make it harder for someone to slip a user a fake
 445          * user-JavaScript or user-CSS preview, a random token
 446          * is associated with the login session. If it's not
 447          * passed back with the preview request, we won't render
 448          * the code.
 449          *
 450          * @param string $action
 451          * @return bool
 452          * @private
 453          */
 454         function userCanPreview( $action ) {
 455                 global $wgTitle, $wgRequest, $wgUser;
 456
 457                 if( $action != 'submit' )
 458                         return false;
 459                 if( !$wgRequest->wasPosted() )
 460                         return false;
 461                 if( !$wgTitle->userCanEditCssJsSubpage() )
 462                         return false;
 463                 return $wgUser->matchEditToken(
 464                         $wgRequest->getVal( 'wpEditToken' ) );
 465         }
 466
 467         /**
 468          * generated JavaScript action=raw&gen=js
 469          * This returns MediaWiki:Common.js and MediaWiki:[Skinname].js concate-
 470          * nated together.  For some bizarre reason, it does *not* return any
 471          * custom user JS from subpages.  Huh?
 472          *
 473          * There's absolutely no reason to have separate Monobook/Common JSes.
 474          * Any JS that cares can just check the skin variable generated at the
 475          * top.  For now Monobook.js will be maintained, but it should be consi-
 476          * dered deprecated.
 477          *
 478          * @return string
 479          */
 480         public function generateUserJs() {
 481                 global $wgStylePath;
 482
 483                 wfProfileIn( __METHOD__ );
 484
 485                 $s = "/* generated javascript */\n";
 486                 $s .= "var skin = '" . Xml::escapeJsString( $this->getSkinName() ) . "';\n";
 487                 $s .= "var stylepath = '" . Xml::escapeJsString( $wgStylePath ) . "';";
 488                 $s .= "\n\n/* MediaWiki:Common.js */\n";
 489                 $commonJs = wfMsgForContent('common.js');
 490                 if ( !wfEmptyMsg ( 'common.js', $commonJs ) ) {
 491                         $s .= $commonJs;
 492                 }
 493
 494                 $s .= "\n\n/* MediaWiki:".ucfirst( $this->getSkinName() ).".js */\n";
 495                 // avoid inclusion of non defined user JavaScript (with custom skins only)
 496                 // by checking for default message content
 497                 $msgKey = ucfirst( $this->getSkinName() ).'.js';
 498                 $userJS = wfMsgForContent($msgKey);
 499                 if ( !wfEmptyMsg( $msgKey, $userJS ) ) {
 500                         $s .= $userJS;
 501                 }
 502
 503                 wfProfileOut( __METHOD__ );
 504                 return $s;
 505         }
 506
 507         /**
 508          * generate user stylesheet for action=raw&gen=css
 509          */
 510         public function generateUserStylesheet() {
 511                 wfProfileIn( __METHOD__ );
 512                 $s = "/* generated user stylesheet */\n" .
 513                         $this->reallyGenerateUserStylesheet();
 514                 wfProfileOut( __METHOD__ );
 515                 return $s;
 516         }
 517
 518         /**
 519          * Split for easier subclassing in SkinSimple, SkinStandard and SkinCologneBlue
 520          */
 521         protected function reallyGenerateUserStylesheet(){
 522                 global $wgUser;
 523                 $s = '';
 524                 if (($undopt = $wgUser->getOption("underline")) < 2) {
 525                         $underline = $undopt ? 'underline' : 'none';
 526                         $s .= "a { text-decoration: $underline; }\n";
 527                 }
 528                 if( $wgUser->getOption( 'highlightbroken' ) ) {
 529                         $s .= "a.new, #quickbar a.new { color: #CC2200; }\n";
 530                 } else {
 531                         $s .= <<<END
 532 a.new, #quickbar a.new,
 533 a.stub, #quickbar a.stub {
 534         color: inherit;
 535 }
 536 a.new:after, #quickbar a.new:after {
 537         content: "?";
 538         color: #CC2200;
 539 }
 540 a.stub:after, #quickbar a.stub:after {
 541         content: "!";
 542         color: #772233;
 543 }
 544 END;
 545                 }
 546                 if( $wgUser->getOption( 'justify' ) ) {
 547                         $s .= "#article, #bodyContent, #mw_content { text-align: justify; }\n";
 548                 }
 549                 if( !$wgUser->getOption( 'showtoc' ) ) {
 550                         $s .= "#toc { display: none; }\n";
 551                 }
 552                 if( !$wgUser->getOption( 'editsection' ) ) {
 553                         $s .= ".editsection { display: none; }\n";
 554                 }
 555                 return $s;
 556         }
 557
 558         /**
 559          * @private
 560          */
 561         function setupUserCss( OutputPage $out ) {
 562                 global $wgRequest, $wgContLang, $wgUser;
 563                 global $wgAllowUserCss, $wgUseSiteCss, $wgSquidMaxage, $wgStylePath;
 564
 565                 wfProfileIn( __METHOD__ );
 566
 567                 $this->setupSkinUserCss( $out );
 568
 569                 $siteargs = array(
 570                         'action' => 'raw',
 571                         'maxage' => $wgSquidMaxage,
 572                 );
 573
 574                 // Add any extension CSS
 575                 foreach( $out->getExtStyle() as $tag ) {
 576                         $out->addStyle( $tag['href'] );
 577                 }
 578
 579                 // If we use the site's dynamic CSS, throw that in, too
 580                 // Per-site custom styles
 581                 if( $wgUseSiteCss ) {
 582                         global $wgHandheldStyle;
 583                         $query = wfArrayToCGI( array(
 584                                 'usemsgcache' => 'yes',
 585                                 'ctype' => 'text/css',
 586                                 'smaxage' => $wgSquidMaxage
 587                         ) + $siteargs );
 588                         # Site settings must override extension css! (bug 15025)
 589                         $out->addStyle( self::makeNSUrl( 'Common.css', $query, NS_MEDIAWIKI ) );
 590                         $out->addStyle( self::makeNSUrl( 'Print.css', $query, NS_MEDIAWIKI ), 'print' );
 591                         if( $wgHandheldStyle ) {
 592                                 $out->addStyle( self::makeNSUrl( 'Handheld.css', $query, NS_MEDIAWIKI ), 'handheld' );
 593                         }
 594                         $out->addStyle( self::makeNSUrl( $this->getSkinName() . '.css', $query, NS_MEDIAWIKI ) );
 595                 }
 596
 597                 if( $wgUser->isLoggedIn() ) {
 598                         // Ensure that logged-in users' generated CSS isn't clobbered
 599                         // by anons' publicly cacheable generated CSS.
 600                         $siteargs['smaxage'] = '0';
 601                         $siteargs['ts'] = $wgUser->mTouched;
 602                 }
 603                 // Per-user styles based on preferences
 604                 $siteargs['gen'] = 'css';
 605                 if( ( $us = $wgRequest->getVal( 'useskin', '' ) ) !== '' ) {
 606                         $siteargs['useskin'] = $us;
 607                 }
 608                 $out->addStyle( self::makeUrl( '-', wfArrayToCGI( $siteargs ) ) );
 609
 610                 // Per-user custom style pages
 611                 if( $wgAllowUserCss && $wgUser->isLoggedIn() ) {
 612                         $action = $wgRequest->getVal('action');
 613                         # If we're previewing the CSS page, use it
 614                         if( $this->mTitle->isCssSubpage() && $this->userCanPreview( $action ) ) {
 615                                 $previewCss = $wgRequest->getText('wpTextbox1');
 616                                 // @FIXME: properly escape the cdata!
 617                                 $this->usercss = "/*<![CDATA[*/\n" . $previewCss . "/*]]>*/";
 618                         } else {
 619                                 $out->addStyle( self::makeUrl($this->userpage . '/' . $this->getSkinName() .'.css',
 620                                         'action=raw&ctype=text/css' ) );
 621                         }
 622                 }
 623
 624                 wfProfileOut( __METHOD__ );
 625         }
 626
 627         /**
 628          * Add skin specific stylesheets
 629          * @param $out OutputPage
 630          */
 631         function setupSkinUserCss( OutputPage $out ) {
 632                 $out->addStyle( 'common/shared.css' );
 633                 $out->addStyle( 'common/oldshared.css' );
 634                 $out->addStyle( $this->getStylesheet() );
 635                 $out->addStyle( 'common/common_rtl.css', '', '', 'rtl' );
 636         }
 637
 638         function getBodyOptions() {
 639                 global $wgUser, $wgTitle, $wgOut, $wgRequest, $wgContLang;
 640
 641                 extract( $wgRequest->getValues( 'oldid', 'redirect', 'diff' ) );
 642
 643                 if ( 0 != $wgTitle->getNamespace() ) {
 644                         $a = array( 'bgcolor' => '#ffffec' );
 645                 }
 646                 else $a = array( 'bgcolor' => '#FFFFFF' );
 647                 if($wgOut->isArticle() && $wgUser->getOption('editondblclick') &&
 648                   $wgTitle->quickUserCan( 'edit' ) ) {
 649                         $s = $wgTitle->getFullURL( $this->editUrlOptions() );
 650                         $s = 'document.location = "' .wfEscapeJSString( $s ) .'";';
 651                         $a += array ('ondblclick' => $s);
 652
 653                 }
 654                 $a['onload'] = $wgOut->getOnloadHandler();
 655                 $a['class'] =
 656                         'mediawiki' .
 657                         ' '.( $wgContLang->isRTL() ? "rtl" : "ltr" ).
 658                         ' '.$this->getPageClasses( $wgTitle ) .
 659                         ' skin-'. Sanitizer::escapeClass( $this->getSkinName( ) );
 660                 return $a;
 661         }
 662
 663         function getPageClasses( $title ) {
 664                 $numeric = 'ns-'.$title->getNamespace();
 665                 if( $title->getNamespace() == NS_SPECIAL ) {
 666                         $type = "ns-special";
 667                 } elseif( $title->isTalkPage() ) {
 668                         $type = "ns-talk";
 669                 } else {
 670                         $type = "ns-subject";
 671                 }
 672                 $name = Sanitizer::escapeClass( 'page-'.$title->getPrefixedText() );
 673                 return "$numeric $type $name";
 674         }
 675
 676         /**
 677          * URL to the logo
 678          */
 679         function getLogo() {
 680                 global $wgLogo;
 681                 return $wgLogo;
 682         }
 683
 684         /**
 685          * This will be called immediately after the <body> tag.  Split into
 686          * two functions to make it easier to subclass.
 687          */
 688         function beforeContent() {
 689                 return $this->doBeforeContent();
 690         }
 691
 692         function doBeforeContent() {
 693                 global $wgContLang;
 694                 $fname = 'Skin::doBeforeContent';
 695                 wfProfileIn( $fname );
 696
 697                 $s = '';
 698                 $qb = $this->qbSetting();
 699
 700                 if( $langlinks = $this->otherLanguages() ) {
 701                         $rows = 2;
 702                         $borderhack = '';
 703                 } else {
 704                         $rows = 1;
 705                         $langlinks = false;
 706                         $borderhack = 'class="top"';
 707                 }
 708
 709                 $s .= "\n<div id='content'>\n<div id='topbar'>\n" .
 710                   "<table border='0' cellspacing='0' width='98%'>\n<tr>\n";
 711
 712                 $shove = ( $qb != 0 );
 713                 $left = ( $qb == 1 || $qb == 3 );
 714                 if( $wgContLang->isRTL() ) $left = !$left;
 715
 716                 if( !$shove ) {
 717                         $s .= "<td class='top' align='left' valign='top' rowspan='{$rows}'>\n" .
 718                           $this->logoText() . '</td>';
 719                 } elseif( $left ) {
 720                         $s .= $this->getQuickbarCompensator( $rows );
 721                 }
 722                 $l = $wgContLang->isRTL() ? 'right' : 'left';
 723                 $s .= "<td {$borderhack} align='$l' valign='top'>\n";
 724
 725                 $s .= $this->topLinks() ;
 726                 $s .= "<p class='subtitle'>" . $this->pageTitleLinks() . "</p>\n";
 727
 728                 $r = $wgContLang->isRTL() ? "left" : "right";
 729                 $s .= "</td>\n<td {$borderhack} valign='top' align='$r' nowrap='nowrap'>";
 730                 $s .= $this->nameAndLogin();
 731                 $s .= "\n<br />" . $this->searchForm() . "</td>";
 732
 733                 if ( $langlinks ) {
 734                         $s .= "</tr>\n<tr>\n<td class='top' colspan=\"2\">$langlinks</td>\n";
 735                 }
 736
 737                 if ( $shove && !$left ) { # Right
 738                         $s .= $this->getQuickbarCompensator( $rows );
 739                 }
 740                 $s .= "</tr>\n</table>\n</div>\n";
 741                 $s .= "\n<div id='article'>\n";
 742
 743                 $notice = wfGetSiteNotice();
 744                 if( $notice ) {
 745                         $s .= "\n<div id='siteNotice'>$notice</div>\n";
 746                 }
 747                 $s .= $this->pageTitle();
 748                 $s .= $this->pageSubtitle() ;
 749                 $s .= $this->getCategories();
 750                 wfProfileOut( $fname );
 751                 return $s;
 752         }
 753
 754
 755         function getCategoryLinks() {
 756                 global $wgOut, $wgTitle, $wgUseCategoryBrowser;
 757                 global $wgContLang, $wgUser;
 758
 759                 if( count( $wgOut->mCategoryLinks ) == 0 ) return '';
 760
 761                 # Separator
 762                 $sep = wfMsgHtml( 'catseparator' );
 763
 764                 // Use Unicode bidi embedding override characters,
 765                 // to make sure links don't smash each other up in ugly ways.
 766                 $dir = $wgContLang->isRTL() ? 'rtl' : 'ltr';
 767                 $embed = "<span dir='$dir'>";
 768                 $pop = '</span>';
 769
 770                 $allCats = $wgOut->getCategoryLinks();
 771                 $s = '';
 772                 $colon = wfMsgExt( 'colon-separator', 'escapenoentities' );
 773                 if ( !empty( $allCats['normal'] ) ) {
 774                         $t = $embed . implode ( "{$pop} {$sep} {$embed}" , $allCats['normal'] ) . $pop;
 775
 776                         $msg = wfMsgExt( 'pagecategories', array( 'parsemag', 'escapenoentities' ), count( $allCats['normal'] ) );
 777                         $s .= '<div id="mw-normal-catlinks">' .
 778                                 $this->link( Title::newFromText( wfMsgForContent('pagecategorieslink') ), $msg )
 779                                 . $colon . $t . '</div>';
 780                 }
 781
 782                 # Hidden categories
 783                 if ( isset( $allCats['hidden'] ) ) {
 784                         if ( $wgUser->getBoolOption( 'showhiddencats' ) ) {
 785                                 $class ='mw-hidden-cats-user-shown';
 786                         } elseif ( $wgTitle->getNamespace() == NS_CATEGORY ) {
 787                                 $class = 'mw-hidden-cats-ns-shown';
 788                         } else {
 789                                 $class = 'mw-hidden-cats-hidden';
 790                         }
 791                         $s .= "<div id=\"mw-hidden-catlinks\" class=\"$class\">" .
 792                                 wfMsgExt( 'hidden-categories', array( 'parsemag', 'escapenoentities' ), count( $allCats['hidden'] ) ) .
 793                                 $colon . $embed . implode( "$pop $sep $embed", $allCats['hidden'] ) . $pop .
 794                                 "</div>";
 795                 }
 796
 797                 # optional 'dmoz-like' category browser. Will be shown under the list
 798                 # of categories an article belong to
 799                 if( $wgUseCategoryBrowser ){
 800                         $s .= '<br /><hr />';
 801
 802                         # get a big array of the parents tree
 803                         $parenttree = $wgTitle->getParentCategoryTree();
 804                         # Skin object passed by reference cause it can not be
 805                         # accessed under the method subfunction drawCategoryBrowser
 806                         $tempout = explode("\n", Skin::drawCategoryBrowser($parenttree, $this) );
 807                         # Clean out bogus first entry and sort them
 808                         unset($tempout[0]);
 809                         asort($tempout);
 810                         # Output one per line
 811                         $s .= implode("<br />\n", $tempout);
 812                 }
 813
 814                 return $s;
 815         }
 816
 817         /** Render the array as a serie of links.
 818          * @param $tree Array: categories tree returned by Title::getParentCategoryTree
 819          * @param &skin Object: skin passed by reference
 820          * @return String separated by &gt;, terminate with "\n"
 821          */
 822         function drawCategoryBrowser( $tree, &$skin ){
 823                 $return = '';
 824                 foreach ($tree as $element => $parent) {
 825                         if (empty($parent)) {
 826                                 # element start a new list
 827                                 $return .= "\n";
 828                         } else {
 829                                 # grab the others elements
 830                                 $return .= Skin::drawCategoryBrowser($parent, $skin) . ' &gt; ';
 831                         }
 832                         # add our current element to the list
 833                         $eltitle = Title::newFromText($element);
 834                         $return .=  $skin->link( $eltitle, $eltitle->getText() ) ;
 835                 }
 836                 return $return;
 837         }
 838
 839         function getCategories() {
 840                 $catlinks=$this->getCategoryLinks();
 841
 842                 $classes = 'catlinks';
 843
 844                 if( strpos( $catlinks, '<div id="mw-normal-catlinks">' ) === false &&
 845                         strpos( $catlinks, '<div id="mw-hidden-catlinks" class="mw-hidden-cats-hidden">' ) !== false ) {
 846                         $classes .= ' catlinks-allhidden';
 847                 }
 848
 849                 if( !empty( $catlinks ) ){
 850                         return "<div id='catlinks' class='$classes'>{$catlinks}</div>";
 851                 }
 852         }
 853
 854         function getQuickbarCompensator( $rows = 1 ) {
 855                 return "<td width='152' rowspan='{$rows}'>&nbsp;</td>";
 856         }
 857
 858         /**
 859          * This runs a hook to allow extensions placing their stuff after content
 860          * and article metadata (e.g. categories).
 861          * Note: This function has nothing to do with afterContent().
 862          *
 863          * This hook is placed here in order to allow using the same hook for all
 864          * skins, both the SkinTemplate based ones and the older ones, which directly
 865          * use this class to get their data.
 866          *
 867          * The output of this function gets processed in SkinTemplate::outputPage() for
 868          * the SkinTemplate based skins, all other skins should directly echo it.
 869          *
 870          * Returns an empty string by default, if not changed by any hook function.
 871          */
 872         protected function afterContentHook() {
 873                 $data = "";
 874
 875                 if( wfRunHooks( 'SkinAfterContent', array( &$data ) ) ){
 876                         // adding just some spaces shouldn't toggle the output
 877                         // of the whole <div/>, so we use trim() here
 878                         if( trim( $data ) != '' ){
 879                                 // Doing this here instead of in the skins to
 880                                 // ensure that the div has the same ID in all
 881                                 // skins
 882                                 $data = "<div id='mw-data-after-content'>\n" .
 883                                         "\t$data\n" .
 884                                         "</div>\n";
 885                         }
 886                 } else {
 887                         wfDebug( "Hook SkinAfterContent changed output processing.\n" );
 888                 }
 889
 890                 return $data;
 891         }
 892
 893         /**
 894          * This gets called shortly before the </body> tag.
 895          * @return String HTML to be put before </body>
 896          */
 897         function afterContent() {
 898                 $printfooter = "<div class=\"printfooter\">\n" . $this->printFooter() . "</div>\n";
 899                 return $printfooter . $this->doAfterContent();
 900         }
 901
 902         /**
 903          * This gets called shortly before the </body> tag.
 904          * @return String HTML-wrapped JS code to be put before </body>
 905          */
 906         function bottomScripts() {
 907                 global $wgJsMimeType;
 908                 $bottomScriptText = "\n\t\t<script type=\"$wgJsMimeType\">if (window.runOnloadHook) runOnloadHook();</script>\n";
 909                 wfRunHooks( 'SkinAfterBottomScripts', array( $this, &$bottomScriptText ) );
 910                 return $bottomScriptText;
 911         }
 912
 913         /** @return string Retrievied from HTML text */
 914         function printSource() {
 915                 global $wgTitle;
 916                 $url = htmlspecialchars( $wgTitle->getFullURL() );
 917                 return wfMsg( 'retrievedfrom', '<a href="'.$url.'">'.$url.'</a>' );
 918         }
 919
 920         function printFooter() {
 921                 return "<p>" .  $this->printSource() .
 922                         "</p>\n\n<p>" . $this->pageStats() . "</p>\n";
 923         }
 924
 925         /** overloaded by derived classes */
 926         function doAfterContent() { return "</div></div>"; }
 927
 928         function pageTitleLinks() {
 929                 global $wgOut, $wgTitle, $wgUser, $wgRequest;
 930
 931                 $oldid = $wgRequest->getVal( 'oldid' );
 932                 $diff = $wgRequest->getVal( 'diff' );
 933                 $action = $wgRequest->getText( 'action' );
 934
 935                 $s = $this->printableLink();
 936                 $disclaimer = $this->disclaimerLink(); # may be empty
 937                 if( $disclaimer ) {
 938                         $s .= ' | ' . $disclaimer;
 939                 }
 940                 $privacy = $this->privacyLink(); # may be empty too
 941                 if( $privacy ) {
 942                         $s .= ' | ' . $privacy;
 943                 }
 944
 945                 if ( $wgOut->isArticleRelated() ) {
 946                         if ( $wgTitle->getNamespace() == NS_FILE ) {
 947                                 $name = $wgTitle->getDBkey();
 948                                 $image = wfFindFile( $wgTitle );
 949                                 if( $image ) {
 950                                         $link = htmlspecialchars( $image->getURL() );
 951                                         $style = $this->getInternalLinkAttributes( $link, $name );
 952                                         $s .= " | <a href=\"{$link}\"{$style}>{$name}</a>";
 953                                 }
 954                         }
 955                 }
 956                 if ( 'history' == $action || isset( $diff ) || isset( $oldid ) ) {
 957                         $s .= ' | ' . $this->makeKnownLinkObj( $wgTitle,
 958                                         wfMsg( 'currentrev' ) );
 959                 }
 960
 961                 if ( $wgUser->getNewtalk() ) {
 962                         # do not show "You have new messages" text when we are viewing our
 963                         # own talk page
 964                         if( !$wgTitle->equals( $wgUser->getTalkPage() ) ) {
 965                                 $tl = $this->makeKnownLinkObj( $wgUser->getTalkPage(), wfMsgHtml( 'newmessageslink' ), 'redirect=no' );
 966                                 $dl = $this->makeKnownLinkObj( $wgUser->getTalkPage(), wfMsgHtml( 'newmessagesdifflink' ), 'diff=cur' );
 967                                 $s.= ' | <strong>'. wfMsg( 'youhavenewmessages', $tl, $dl ) . '</strong>';
 968                                 # disable caching
 969                                 $wgOut->setSquidMaxage(0);
 970                                 $wgOut->enableClientCache(false);
 971                         }
 972                 }
 973
 974                 $undelete = $this->getUndeleteLink();
 975                 if( !empty( $undelete ) ) {
 976                         $s .= ' | '.$undelete;
 977                 }
 978                 return $s;
 979         }
 980
 981         function getUndeleteLink() {
 982                 global $wgUser, $wgTitle, $wgContLang, $wgLang, $action;
 983                 if(     $wgUser->isAllowed( 'deletedhistory' ) &&
 984                         (($wgTitle->getArticleId() == 0) || ($action == "history")) &&
 985                         ($n = $wgTitle->isDeleted() ) )
 986                 {
 987                         if ( $wgUser->isAllowed( 'undelete' ) ) {
 988                                 $msg = 'thisisdeleted';
 989                         } else {
 990                                 $msg = 'viewdeleted';
 991                         }
 992                         return wfMsg( $msg,
 993                                 $this->makeKnownLinkObj(
 994                                         SpecialPage::getTitleFor( 'Undelete', $wgTitle->getPrefixedDBkey() ),
 995                                         wfMsgExt( 'restorelink', array( 'parsemag', 'escape' ), $wgLang->formatNum( $n ) ) ) );
 996                 }
 997                 return '';
 998         }
 999
1000         function printableLink() {
1001                 global $wgOut, $wgFeedClasses, $wgRequest;
1002
1003                 $printurl = $wgRequest->escapeAppendQuery( 'printable=yes' );
1004
1005                 $s = "<a href=\"$printurl\">" . wfMsg( 'printableversion' ) . '</a>';
1006                 if( $wgOut->isSyndicated() ) {
1007                         foreach( $wgFeedClasses as $format => $class ) {
1008                                 $feedurl = $wgRequest->escapeAppendQuery( "feed=$format" );
1009                                 $s .= " | <a href=\"$feedurl\">{$format}</a>";
1010                         }
1011                 }
1012                 return $s;
1013         }
1014
1015         function pageTitle() {
1016                 global $wgOut;
1017                 $s = '<h1 class="pagetitle">' . htmlspecialchars( $wgOut->getPageTitle() ) . '</h1>';
1018                 return $s;
1019         }
1020
1021         function pageSubtitle() {
1022                 global $wgOut;
1023
1024                 $sub = $wgOut->getSubtitle();
1025                 if ( '' == $sub ) {
1026                         global $wgExtraSubtitle;
1027                         $sub = wfMsg( 'tagline' ) . $wgExtraSubtitle;
1028                 }
1029                 $subpages = $this->subPageSubtitle();
1030                 $sub .= !empty($subpages)?"</p><p class='subpages'>$subpages":'';
1031                 $s = "<p class='subtitle'>{$sub}</p>\n";
1032                 return $s;
1033         }
1034
1035         function subPageSubtitle() {
1036                 $subpages = '';
1037                 if(!wfRunHooks('SkinSubPageSubtitle', array(&$subpages)))
1038                         return $subpages;
1039
1040                 global $wgOut, $wgTitle;
1041                 if($wgOut->isArticle() && MWNamespace::hasSubpages( $wgTitle->getNamespace() )) {
1042                         $ptext=$wgTitle->getPrefixedText();
1043                         if(preg_match('/\//',$ptext)) {
1044                                 $links = explode('/',$ptext);
1045                                 array_pop( $links );
1046                                 $c = 0;
1047                                 $growinglink = '';
1048                                 $display = '';
1049                                 foreach($links as $link) {
1050                                         $growinglink .= $link;
1051                                         $display .= $link;
1052                                         $linkObj = Title::newFromText( $growinglink );
1053                                         if( is_object( $linkObj ) && $linkObj->exists() ){
1054                                                 $getlink = $this->makeKnownLinkObj( $linkObj, htmlspecialchars( $display ) );
1055                                                 $c++;
1056                                                 if ($c>1) {
1057                                                         $subpages .= ' | ';
1058                                                 } else  {
1059                                                         $subpages .= '&lt; ';
1060                                                 }
1061                                                 $subpages .= $getlink;
1062                                                 $display = '';
1063                                         } else {
1064                                                 $display .= '/';
1065                                         }
1066                                         $growinglink .= '/';
1067                                 }
1068                         }
1069                 }
1070                 return $subpages;
1071         }
1072
1073         /**
1074          * Returns true if the IP should be shown in the header
1075          */
1076         function showIPinHeader() {
1077                 global $wgShowIPinHeader;
1078                 return $wgShowIPinHeader && session_id() != '';
1079         }
1080
1081         function nameAndLogin() {
1082                 global $wgUser, $wgTitle, $wgLang, $wgContLang;
1083
1084                 $logoutPage = $wgContLang->specialPage( 'Userlogout' );
1085
1086                 $ret = '';
1087                 if ( $wgUser->isAnon() ) {
1088                         if( $this->showIPinHeader() ) {
1089                                 $name = wfGetIP();
1090
1091                                 $talkLink = $this->link( $wgUser->getTalkPage(),
1092                                         $wgLang->getNsText( NS_TALK ) );
1093
1094                                 $ret .= "$name ($talkLink)";
1095                         } else {
1096                                 $ret .= wfMsg( 'notloggedin' );
1097                         }
1098
1099                         $returnTo = $wgTitle->getPrefixedDBkey();
1100                         $query = array();
1101                         if ( $logoutPage != $returnTo ) {
1102                                 $query['returnto'] = $returnTo;
1103                         }
1104
1105                         $loginlink = $wgUser->isAllowed( 'createaccount' )
1106                                 ? 'nav-login-createaccount'
1107                                 : 'login';
1108                         $ret .= "\n<br />" . $this->link(
1109                                 SpecialPage::getTitleFor( 'Userlogin' ),
1110                                 wfMsg( $loginlink ), array(), $query
1111                         );
1112                 } else {
1113                         $returnTo = $wgTitle->getPrefixedDBkey();
1114                         $talkLink = $this->link( $wgUser->getTalkPage(),
1115                                 $wgLang->getNsText( NS_TALK ) );
1116
1117                         $ret .= $this->link( $wgUser->getUserPage(),
1118                                 htmlspecialchars( $wgUser->getName() ) );
1119                         $ret .= " ($talkLink)<br />";
1120                         $ret .= $this->link(
1121                                 SpecialPage::getTitleFor( 'Userlogout' ), wfMsg( 'logout' ),
1122                                 array(), array( 'returnto' => $returnTo )
1123                         );
1124                         $ret .= ' | ' . $this->specialLink( 'preferences' );
1125                 }
1126                 $ret .= ' | ' . $this->link(
1127                         Title::newFromText( wfMsgForContent( 'helppage' ) ),
1128                         wfMsg( 'help' )
1129                 );
1130
1131                 return $ret;
1132         }
1133
1134         function getSearchLink() {
1135                 $searchPage = SpecialPage::getTitleFor( 'Search' );
1136                 return $searchPage->getLocalURL();
1137         }
1138
1139         function escapeSearchLink() {
1140                 return htmlspecialchars( $this->getSearchLink() );
1141         }
1142
1143         function searchForm() {
1144                 global $wgRequest;
1145                 $search = $wgRequest->getText( 'search' );
1146
1147                 $s = '<form id="searchform'.$this->searchboxes.'" name="search" class="inline" method="post" action="'
1148                   . $this->escapeSearchLink() . "\">\n"
1149                   . '<input type="text" id="searchInput'.$this->searchboxes.'" name="search" size="19" value="'
1150                   . htmlspecialchars(substr($search,0,256)) . "\" />\n"
1151                   . '<input type="submit" name="go" value="' . wfMsg ('searcharticle') . '" />&nbsp;'
1152                   . '<input type="submit" name="fulltext" value="' . wfMsg ('searchbutton') . "\" />\n</form>";
1153
1154                 // Ensure unique id's for search boxes made after the first
1155                 $this->searchboxes = $this->searchboxes == '' ? 2 : $this->searchboxes + 1;
1156
1157                 return $s;
1158         }
1159
1160         function topLinks() {
1161                 global $wgOut;
1162                 $sep = " |\n";
1163
1164                 $s = $this->mainPageLink() . $sep
1165                   . $this->specialLink( 'recentchanges' );
1166
1167                 if ( $wgOut->isArticleRelated() ) {
1168                         $s .=  $sep . $this->editThisPage()
1169                           . $sep . $this->historyLink();
1170                 }
1171                 # Many people don't like this dropdown box
1172                 #$s .= $sep . $this->specialPagesList();
1173
1174                 $s .= $this->variantLinks();
1175
1176                 $s .= $this->extensionTabLinks();
1177
1178                 return $s;
1179         }
1180
1181         /**
1182          * Compatibility for extensions adding functionality through tabs.
1183          * Eventually these old skins should be replaced with SkinTemplate-based
1184          * versions, sigh...
1185          * @return string
1186          */
1187         function extensionTabLinks() {
1188                 $tabs = array();
1189                 $s = '';
1190                 wfRunHooks( 'SkinTemplateTabs', array( $this, &$tabs ) );
1191                 foreach( $tabs as $tab ) {
1192                         $s .= ' | ' . Xml::element( 'a',
1193                                 array( 'href' => $tab['href'] ),
1194                                 $tab['text'] );
1195                 }
1196                 return $s;
1197         }
1198
1199         /**
1200          * Language/charset variant links for classic-style skins
1201          * @return string
1202          */
1203         function variantLinks() {
1204                 $s = '';
1205                 /* show links to different language variants */
1206                 global $wgDisableLangConversion, $wgContLang, $wgTitle;
1207                 $variants = $wgContLang->getVariants();
1208                 if( !$wgDisableLangConversion && sizeof( $variants ) > 1 ) {
1209                         foreach( $variants as $code ) {
1210                                 $varname = $wgContLang->getVariantname( $code );
1211                                 if( $varname == 'disable' )
1212                                         continue;
1213                                 $s .= ' | <a href="' . $wgTitle->escapeLocalUrl( 'variant=' . $code ) . '">' . htmlspecialchars( $varname ) . '</a>';
1214                         }
1215                 }
1216                 return $s;
1217         }
1218
1219         function bottomLinks() {
1220                 global $wgOut, $wgUser, $wgTitle, $wgUseTrackbacks;
1221                 $sep = " |\n";
1222
1223                 $s = '';
1224                 if ( $wgOut->isArticleRelated() ) {
1225                         $s .= '<strong>' . $this->editThisPage() . '</strong>';
1226                         if ( $wgUser->isLoggedIn() ) {
1227                                 $s .= $sep . $this->watchThisPage();
1228                         }
1229                         $s .= $sep . $this->talkLink()
1230                           . $sep . $this->historyLink()
1231                           . $sep . $this->whatLinksHere()
1232                           . $sep . $this->watchPageLinksLink();
1233
1234                         if ($wgUseTrackbacks)
1235                                 $s .= $sep . $this->trackbackLink();
1236
1237                         if ( $wgTitle->getNamespace() == NS_USER
1238                             || $wgTitle->getNamespace() == NS_USER_TALK )
1239
1240                         {
1241                                 $id=User::idFromName($wgTitle->getText());
1242                                 $ip=User::isIP($wgTitle->getText());
1243
1244                                 if($id || $ip) { # both anons and non-anons have contri list
1245                                         $s .= $sep . $this->userContribsLink();
1246                                 }
1247                                 if( $this->showEmailUser( $id ) ) {
1248                                         $s .= $sep . $this->emailUserLink();
1249                                 }
1250                         }
1251                         if ( $wgTitle->getArticleId() ) {
1252                                 $s .= "\n<br />";
1253                                 if($wgUser->isAllowed('delete')) { $s .= $this->deleteThisPage(); }
1254                                 if($wgUser->isAllowed('protect')) { $s .= $sep . $this->protectThisPage(); }
1255                                 if($wgUser->isAllowed('move')) { $s .= $sep . $this->moveThisPage(); }
1256                         }
1257                         $s .= "<br />\n" . $this->otherLanguages();
1258                 }
1259                 return $s;
1260         }
1261
1262         function pageStats() {
1263                 global $wgOut, $wgLang, $wgArticle, $wgRequest, $wgUser;
1264                 global $wgDisableCounters, $wgMaxCredits, $wgShowCreditsIfMax, $wgTitle, $wgPageShowWatchingUsers;
1265
1266                 $oldid = $wgRequest->getVal( 'oldid' );
1267                 $diff = $wgRequest->getVal( 'diff' );
1268                 if ( ! $wgOut->isArticle() ) { return ''; }
1269                 if ( isset( $oldid ) || isset( $diff ) ) { return ''; }
1270                 if ( 0 == $wgArticle->getID() ) { return ''; }
1271
1272                 $s = '';
1273                 if ( !$wgDisableCounters ) {
1274                         $count = $wgLang->formatNum( $wgArticle->getCount() );
1275                         if ( $count ) {
1276                                 $s = wfMsgExt( 'viewcount', array( 'parseinline' ), $count );
1277                         }
1278                 }
1279
1280                 if( $wgMaxCredits != 0 ){
1281                         $s .= ' ' . Credits::getCredits( $wgArticle, $wgMaxCredits, $wgShowCreditsIfMax );
1282                 } else {
1283                         $s .= $this->lastModified();
1284                 }
1285
1286                 if( $wgPageShowWatchingUsers && $wgUser->getOption( 'shownumberswatching' ) ) {
1287                         $dbr = wfGetDB( DB_SLAVE );
1288                         $watchlist = $dbr->tableName( 'watchlist' );
1289                         $sql = "SELECT COUNT(*) AS n FROM $watchlist
1290                                 WHERE wl_title='" . $dbr->strencode($wgTitle->getDBkey()) .
1291                                 "' AND  wl_namespace=" . $wgTitle->getNamespace() ;
1292                         $res = $dbr->query( $sql, 'Skin::pageStats');
1293                         $x = $dbr->fetchObject( $res );
1294
1295                         $s .= ' ' . wfMsgExt( 'number_of_watching_users_pageview',
1296                                 array( 'parseinline' ), $wgLang->formatNum($x->n)
1297                         );
1298                 }
1299
1300                 return $s . ' ' .  $this->getCopyright();
1301         }
1302
1303         function getCopyright( $type = 'detect' ) {
1304                 global $wgRightsPage, $wgRightsUrl, $wgRightsText, $wgRequest, $wgArticle;
1305
1306                 if ( $type == 'detect' ) {
1307                         $diff = $wgRequest->getVal( 'diff' );
1308                         $isCur = $wgArticle && $wgArticle->isCurrent();
1309                         if ( is_null( $diff ) && !$isCur && wfMsgForContent( 'history_copyright' ) !== '-' ) {
1310                                 $type = 'history';
1311                         } else {
1312                                 $type = 'normal';
1313                         }
1314                 }
1315
1316                 if ( $type == 'history' ) {
1317                         $msg = 'history_copyright';
1318                 } else {
1319                         $msg = 'copyright';
1320                 }
1321
1322                 $out = '';
1323                 if( $wgRightsPage ) {
1324                         $link = $this->makeKnownLink( $wgRightsPage, $wgRightsText );
1325                 } elseif( $wgRightsUrl ) {
1326                         $link = $this->makeExternalLink( $wgRightsUrl, $wgRightsText );
1327                 } elseif( $wgRightsText ) {
1328                         $link = $wgRightsText;
1329                 } else {
1330                         # Give up now
1331                         return $out;
1332                 }
1333                 $out .= wfMsgForContent( $msg, $link );
1334                 return $out;
1335         }
1336
1337         function getCopyrightIcon() {
1338                 global $wgRightsUrl, $wgRightsText, $wgRightsIcon, $wgCopyrightIcon;
1339                 $out = '';
1340                 if ( isset( $wgCopyrightIcon ) && $wgCopyrightIcon ) {
1341                         $out = $wgCopyrightIcon;
1342                 } else if ( $wgRightsIcon ) {
1343                         $icon = htmlspecialchars( $wgRightsIcon );
1344                         if ( $wgRightsUrl ) {
1345                                 $url = htmlspecialchars( $wgRightsUrl );
1346                                 $out .= '<a href="'.$url.'">';
1347                         }
1348                         $text = htmlspecialchars( $wgRightsText );
1349                         $out .= "<img src=\"$icon\" alt='$text' />";
1350                         if ( $wgRightsUrl ) {
1351                                 $out .= '</a>';
1352                         }
1353                 }
1354                 return $out;
1355         }
1356
1357         function getPoweredBy() {
1358                 global $wgStylePath;
1359                 $url = htmlspecialchars( "$wgStylePath/common/images/poweredby_mediawiki_88x31.png" );
1360                 $img = '<a href="http://www.mediawiki.org/"><img src="'.$url.'" alt="Powered by MediaWiki" /></a>';
1361                 return $img;
1362         }
1363
1364         function lastModified() {
1365                 global $wgLang, $wgArticle;
1366                 if( $this->mRevisionId ) {
1367                         $timestamp = Revision::getTimestampFromId( $wgArticle->getTitle(), $this->mRevisionId );
1368                 } else {
1369                         $timestamp = $wgArticle->getTimestamp();
1370                 }
1371                 if ( $timestamp ) {
1372                         $d = $wgLang->date( $timestamp, true );
1373                         $t = $wgLang->time( $timestamp, true );
1374                         $s = ' ' . wfMsg( 'lastmodifiedat', $d, $t );
1375                 } else {
1376                         $s = '';
1377                 }
1378                 if ( wfGetLB()->getLaggedSlaveMode() ) {
1379                         $s .= ' <strong>' . wfMsg( 'laggedslavemode' ) . '</strong>';
1380                 }
1381                 return $s;
1382         }
1383
1384         function logoText( $align = '' ) {
1385                 if ( '' != $align ) { $a = " align='{$align}'"; }
1386                 else { $a = ''; }
1387
1388                 $mp = wfMsg( 'mainpage' );
1389                 $mptitle = Title::newMainPage();
1390                 $url = ( is_object($mptitle) ? $mptitle->escapeLocalURL() : '' );
1391
1392                 $logourl = $this->getLogo();
1393                 $s = "<a href='{$url}'><img{$a} src='{$logourl}' alt='[{$mp}]' /></a>";
1394                 return $s;
1395         }
1396
1397         /**
1398          * show a drop-down box of special pages
1399          */
1400         function specialPagesList() {
1401                 global $wgUser, $wgContLang, $wgServer, $wgRedirectScript;
1402                 $pages = array_merge( SpecialPage::getRegularPages(), SpecialPage::getRestrictedPages() );
1403                 foreach ( $pages as $name => $page ) {
1404                         $pages[$name] = $page->getDescription();
1405                 }
1406
1407                 $go = wfMsg( 'go' );
1408                 $sp = wfMsg( 'specialpages' );
1409                 $spp = $wgContLang->specialPage( 'Specialpages' );
1410
1411                 $s = '<form id="specialpages" method="get" ' .
1412                   'action="' . htmlspecialchars( "{$wgServer}{$wgRedirectScript}" ) . "\">\n";
1413                 $s .= "<select name=\"wpDropdown\">\n";
1414                 $s .= "<option value=\"{$spp}\">{$sp}</option>\n";
1415
1416
1417                 foreach ( $pages as $name => $desc ) {
1418                         $p = $wgContLang->specialPage( $name );
1419                         $s .= "<option value=\"{$p}\">{$desc}</option>\n";
1420                 }
1421                 $s .= "</select>\n";
1422                 $s .= "<input type='submit' value=\"{$go}\" name='redirect' />\n";
1423                 $s .= "</form>\n";
1424                 return $s;
1425         }
1426
1427         function mainPageLink() {
1428                 $s = $this->makeKnownLinkObj( Title::newMainPage(), wfMsg( 'mainpage' ) );
1429                 return $s;
1430         }
1431
1432         function copyrightLink() {
1433                 $s = $this->makeKnownLink( wfMsgForContent( 'copyrightpage' ),
1434                   wfMsg( 'copyrightpagename' ) );
1435                 return $s;
1436         }
1437
1438         private function footerLink ( $desc, $page ) {
1439                 // if the link description has been set to "-" in the default language,
1440                 if ( wfMsgForContent( $desc )  == '-') {
1441                         // then it is disabled, for all languages.
1442                         return '';
1443                 } else {
1444                         // Otherwise, we display the link for the user, described in their
1445                         // language (which may or may not be the same as the default language),
1446                         // but we make the link target be the one site-wide page.
1447                         return $this->makeKnownLink( wfMsgForContent( $page ),
1448                                 wfMsgExt( $desc, array( 'parsemag', 'escapenoentities' ) ) );
1449                 }
1450         }
1451
1452         function privacyLink() {
1453                 return $this->footerLink( 'privacy', 'privacypage' );
1454         }
1455
1456         function aboutLink() {
1457                 return $this->footerLink( 'aboutsite', 'aboutpage' );
1458         }
1459
1460         function disclaimerLink() {
1461                 return $this->footerLink( 'disclaimers', 'disclaimerpage' );
1462         }
1463
1464         function editThisPage() {
1465                 global $wgOut, $wgTitle;
1466
1467                 if ( !$wgOut->isArticleRelated() ) {
1468                         $s = wfMsg( 'protectedpage' );
1469                 } else {
1470                         if( $wgTitle->quickUserCan( 'edit' ) && $wgTitle->exists() ) {
1471                                 $t = wfMsg( 'editthispage' );
1472                         } elseif( $wgTitle->quickUserCan( 'create' ) && !$wgTitle->exists() ) {
1473                                 $t = wfMsg( 'create-this-page' );
1474                         } else {
1475                                 $t = wfMsg( 'viewsource' );
1476                         }
1477
1478                         $s = $this->makeKnownLinkObj( $wgTitle, $t, $this->editUrlOptions() );
1479                 }
1480                 return $s;
1481         }
1482
1483         /**
1484          * Return URL options for the 'edit page' link.
1485          * This may include an 'oldid' specifier, if the current page view is such.
1486          *
1487          * @return string
1488          * @private
1489          */
1490         function editUrlOptions() {
1491                 global $wgArticle;
1492
1493                 if( $this->mRevisionId && ! $wgArticle->isCurrent() ) {
1494                         return "action=edit&oldid=" . intval( $this->mRevisionId );
1495                 } else {
1496                         return "action=edit";
1497                 }
1498         }
1499
1500         function deleteThisPage() {
1501                 global $wgUser, $wgTitle, $wgRequest;
1502
1503                 $diff = $wgRequest->getVal( 'diff' );
1504                 if ( $wgTitle->getArticleId() && ( ! $diff ) && $wgUser->isAllowed('delete') ) {
1505                         $t = wfMsg( 'deletethispage' );
1506
1507                         $s = $this->makeKnownLinkObj( $wgTitle, $t, 'action=delete' );
1508                 } else {
1509                         $s = '';
1510                 }
1511                 return $s;
1512         }
1513
1514         function protectThisPage() {
1515                 global $wgUser, $wgTitle, $wgRequest;
1516
1517                 $diff = $wgRequest->getVal( 'diff' );
1518                 if ( $wgTitle->getArticleId() && ( ! $diff ) && $wgUser->isAllowed('protect') ) {
1519                         if ( $wgTitle->isProtected() ) {
1520                                 $t = wfMsg( 'unprotectthispage' );
1521                                 $q = 'action=unprotect';
1522                         } else {
1523                                 $t = wfMsg( 'protectthispage' );
1524                                 $q = 'action=protect';
1525                         }
1526                         $s = $this->makeKnownLinkObj( $wgTitle, $t, $q );
1527                 } else {
1528                         $s = '';
1529                 }
1530                 return $s;
1531         }
1532
1533         function watchThisPage() {
1534                 global $wgOut, $wgTitle;
1535                 ++$this->mWatchLinkNum;
1536
1537                 if ( $wgOut->isArticleRelated() ) {
1538                         if ( $wgTitle->userIsWatching() ) {
1539                                 $t = wfMsg( 'unwatchthispage' );
1540                                 $q = 'action=unwatch';
1541                                 $id = "mw-unwatch-link".$this->mWatchLinkNum;
1542                         } else {
1543                                 $t = wfMsg( 'watchthispage' );
1544                                 $q = 'action=watch';
1545                                 $id = 'mw-watch-link'.$this->mWatchLinkNum;
1546                         }
1547                         $s = $this->makeKnownLinkObj( $wgTitle, $t, $q, '', '', " id=\"$id\"" );
1548                 } else {
1549                         $s = wfMsg( 'notanarticle' );
1550                 }
1551                 return $s;
1552         }
1553
1554         function moveThisPage() {
1555                 global $wgTitle;
1556
1557                 if ( $wgTitle->quickUserCan( 'move' ) ) {
1558                         return $this->makeKnownLinkObj( SpecialPage::getTitleFor( 'Movepage' ),
1559                           wfMsg( 'movethispage' ), 'target=' . $wgTitle->getPrefixedURL() );
1560                 } else {
1561                         // no message if page is protected - would be redundant
1562                         return '';
1563                 }
1564         }
1565
1566         function historyLink() {
1567                 global $wgTitle;
1568
1569                 return $this->makeKnownLinkObj( $wgTitle,
1570                   wfMsg( 'history' ), 'action=history' );
1571         }
1572
1573         function whatLinksHere() {
1574                 global $wgTitle;
1575
1576                 return $this->makeKnownLinkObj(
1577                         SpecialPage::getTitleFor( 'Whatlinkshere', $wgTitle->getPrefixedDBkey() ),
1578                         wfMsg( 'whatlinkshere' ) );
1579         }
1580
1581         function userContribsLink() {
1582                 global $wgTitle;
1583
1584                 return $this->makeKnownLinkObj(
1585                         SpecialPage::getTitleFor( 'Contributions', $wgTitle->getDBkey() ),
1586                         wfMsg( 'contributions' ) );
1587         }
1588
1589         function showEmailUser( $id ) {
1590                 global $wgUser;
1591                 $targetUser = User::newFromId( $id );
1592                 return  $wgUser->canSendEmail() && # the sending user must have a confirmed email address
1593                         $targetUser->canReceiveEmail(); # the target user must have a confirmed email address and allow emails from users
1594         }
1595
1596         function emailUserLink() {
1597                 global $wgTitle;
1598
1599                 return $this->makeKnownLinkObj(
1600                         SpecialPage::getTitleFor( 'Emailuser', $wgTitle->getDBkey() ),
1601                         wfMsg( 'emailuser' ) );
1602         }
1603
1604         function watchPageLinksLink() {
1605                 global $wgOut, $wgTitle;
1606
1607                 if ( ! $wgOut->isArticleRelated() ) {
1608                         return '(' . wfMsg( 'notanarticle' ) . ')';
1609                 } else {
1610                         return $this->makeKnownLinkObj(
1611                                 SpecialPage::getTitleFor( 'Recentchangeslinked', $wgTitle->getPrefixedDBkey() ),
1612                                 wfMsg( 'recentchangeslinked' ) );
1613                 }
1614         }
1615
1616         function trackbackLink() {
1617                 global $wgTitle;
1618
1619                 return "<a href=\"" . $wgTitle->trackbackURL() . "\">"
1620                         . wfMsg('trackbacklink') . "</a>";
1621         }
1622
1623         function otherLanguages() {
1624                 global $wgOut, $wgContLang, $wgHideInterlanguageLinks;
1625
1626                 if ( $wgHideInterlanguageLinks ) {
1627                         return '';
1628                 }
1629
1630                 $a = $wgOut->getLanguageLinks();
1631                 if ( 0 == count( $a ) ) {
1632                         return '';
1633                 }
1634
1635                 $s = wfMsg( 'otherlanguages' ) . ': ';
1636                 $first = true;
1637                 if($wgContLang->isRTL()) $s .= '<span dir="LTR">';
1638                 foreach( $a as $l ) {
1639                         if ( ! $first ) { $s .= ' | '; }
1640                         $first = false;
1641
1642                         $nt = Title::newFromText( $l );
1643                         $url = $nt->escapeFullURL();
1644                         $text = $wgContLang->getLanguageName( $nt->getInterwiki() );
1645
1646                         if ( '' == $text ) { $text = $l; }
1647                         $style = $this->getExternalLinkAttributes( $l, $text );
1648                         $s .= "<a href=\"{$url}\"{$style}>{$text}</a>";
1649                 }
1650                 if($wgContLang->isRTL()) $s .= '</span>';
1651                 return $s;
1652         }
1653
1654         function bugReportsLink() {
1655                 $s = $this->makeKnownLink( wfMsgForContent( 'bugreportspage' ),
1656                   wfMsg( 'bugreports' ) );
1657                 return $s;
1658         }
1659
1660         function talkLink() {
1661                 global $wgTitle;
1662
1663                 if ( NS_SPECIAL == $wgTitle->getNamespace() ) {
1664                         # No discussion links for special pages
1665                         return '';
1666                 }
1667
1668                 $linkOptions = array();
1669
1670                 if( $wgTitle->isTalkPage() ) {
1671                         $link = $wgTitle->getSubjectPage();
1672                         switch( $link->getNamespace() ) {
1673                                 case NS_MAIN:
1674                                         $text = wfMsg( 'articlepage' );
1675                                         break;
1676                                 case NS_USER:
1677                                         $text = wfMsg( 'userpage' );
1678                                         break;
1679                                 case NS_PROJECT:
1680                                         $text = wfMsg( 'projectpage' );
1681                                         break;
1682                                 case NS_FILE:
1683                                         $text = wfMsg( 'imagepage' );
1684                                         # Make link known if image exists, even if the desc. page doesn't.
1685                                         if( wfFindFile( $link ) )
1686                                                 $linkOptions[] = 'known';
1687                                         break;
1688                                 case NS_MEDIAWIKI:
1689                                         $text = wfMsg( 'mediawikipage' );
1690                                         break;
1691                                 case NS_TEMPLATE:
1692                                         $text = wfMsg( 'templatepage' );
1693                                         break;
1694                                 case NS_HELP:
1695                                         $text = wfMsg( 'viewhelppage' );
1696                                         break;
1697                                 case NS_CATEGORY:
1698                                         $text = wfMsg( 'categorypage' );
1699                                         break;
1700                                 default:
1701                                         $text = wfMsg( 'articlepage' );
1702                         }
1703                 } else {
1704                         $link = $wgTitle->getTalkPage();
1705                         $text = wfMsg( 'talkpage' );
1706                 }
1707
1708                 $s = $this->link( $link, $text, array(), array(), $linkOptions );
1709
1710                 return $s;
1711         }
1712
1713         function commentLink() {
1714                 global $wgTitle, $wgOut;
1715
1716                 if ( $wgTitle->getNamespace() == NS_SPECIAL ) {
1717                         return '';
1718                 }
1719
1720                 # __NEWSECTIONLINK___ changes behaviour here
1721                 # If it's present, the link points to this page, otherwise
1722                 # it points to the talk page
1723                 if( $wgTitle->isTalkPage() ) {
1724                         $title = $wgTitle;
1725                 } elseif( $wgOut->showNewSectionLink() ) {
1726                         $title = $wgTitle;
1727                 } else {
1728                         $title = $wgTitle->getTalkPage();
1729                 }
1730
1731                 return $this->makeKnownLinkObj( $title, wfMsg( 'postcomment' ), 'action=edit&section=new' );
1732         }
1733
1734         /* these are used extensively in SkinTemplate, but also some other places */
1735         static function makeMainPageUrl( $urlaction = '' ) {
1736                 $title = Title::newMainPage();
1737                 self::checkTitle( $title, '' );
1738                 return $title->getLocalURL( $urlaction );
1739         }
1740
1741         static function makeSpecialUrl( $name, $urlaction = '' ) {
1742                 $title = SpecialPage::getTitleFor( $name );
1743                 return $title->getLocalURL( $urlaction );
1744         }
1745
1746         static function makeSpecialUrlSubpage( $name, $subpage, $urlaction = '' ) {
1747                 $title = SpecialPage::getSafeTitleFor( $name, $subpage );
1748                 return $title->getLocalURL( $urlaction );
1749         }
1750
1751         static function makeI18nUrl( $name, $urlaction = '' ) {
1752                 $title = Title::newFromText( wfMsgForContent( $name ) );
1753                 self::checkTitle( $title, $name );
1754                 return $title->getLocalURL( $urlaction );
1755         }
1756
1757         static function makeUrl( $name, $urlaction = '' ) {
1758                 $title = Title::newFromText( $name );
1759                 self::checkTitle( $title, $name );
1760                 return $title->getLocalURL( $urlaction );
1761         }
1762
1763         # If url string starts with http, consider as external URL, else
1764         # internal
1765         static function makeInternalOrExternalUrl( $name ) {
1766                 if ( preg_match( '/^(?:' . wfUrlProtocols() . ')/', $name ) ) {
1767                         return $name;
1768                 } else {
1769                         return self::makeUrl( $name );
1770                 }
1771         }
1772
1773         # this can be passed the NS number as defined in Language.php
1774         static function makeNSUrl( $name, $urlaction = '', $namespace = NS_MAIN ) {
1775                 $title = Title::makeTitleSafe( $namespace, $name );
1776                 self::checkTitle( $title, $name );
1777                 return $title->getLocalURL( $urlaction );
1778         }
1779
1780         /* these return an array with the 'href' and boolean 'exists' */
1781         static function makeUrlDetails( $name, $urlaction = '' ) {
1782                 $title = Title::newFromText( $name );
1783                 self::checkTitle( $title, $name );
1784                 return array(
1785                         'href' => $title->getLocalURL( $urlaction ),
1786                         'exists' => $title->getArticleID() != 0 ? true : false
1787                 );
1788         }
1789
1790         /**
1791          * Make URL details where the article exists (or at least it's convenient to think so)
1792          */
1793         static function makeKnownUrlDetails( $name, $urlaction = '' ) {
1794                 $title = Title::newFromText( $name );
1795                 self::checkTitle( $title, $name );
1796                 return array(
1797                         'href' => $title->getLocalURL( $urlaction ),
1798                         'exists' => true
1799                 );
1800         }
1801
1802         # make sure we have some title to operate on
1803         static function checkTitle( &$title, $name ) {
1804                 if( !is_object( $title ) ) {
1805                         $title = Title::newFromText( $name );
1806                         if( !is_object( $title ) ) {
1807                                 $title = Title::newFromText( '--error: link target missing--' );
1808                         }
1809                 }
1810         }
1811
1812         /**
1813          * Build an array that represents the sidebar(s), the navigation bar among them
1814          *
1815          * @return array
1816          */
1817         function buildSidebar() {
1818                 global $parserMemc, $wgEnableSidebarCache, $wgSidebarCacheExpiry;
1819                 global $wgLang;
1820                 wfProfileIn( __METHOD__ );
1821
1822                 $key = wfMemcKey( 'sidebar', $wgLang->getCode() );
1823
1824                 if ( $wgEnableSidebarCache ) {
1825                         $cachedsidebar = $parserMemc->get( $key );
1826                         if ( $cachedsidebar ) {
1827                                 wfProfileOut( __METHOD__ );
1828                                 return $cachedsidebar;
1829                         }
1830                 }
1831
1832                 $bar = array();
1833                 $lines = explode( "\n", wfMsgForContent( 'sidebar' ) );
1834                 $heading = '';
1835                 foreach ($lines as $line) {
1836                         if (strpos($line, '*') !== 0)
1837                                 continue;
1838                         if (strpos($line, '**') !== 0) {
1839                                 $line = trim($line, '* ');
1840                                 $heading = $line;
1841                                 if( !array_key_exists($heading, $bar) ) $bar[$heading] = array();
1842                         } else {
1843                                 if (strpos($line, '|') !== false) { // sanity check
1844                                         $line = array_map('trim', explode( '|' , trim($line, '* '), 2 ) );
1845                                         $link = wfMsgForContent( $line[0] );
1846                                         if ($link == '-')
1847                                                 continue;
1848                                         if (wfEmptyMsg($line[1], $text = wfMsg($line[1])))
1849                                                 $text = $line[1];
1850                                         if (wfEmptyMsg($line[0], $link))
1851                                                 $link = $line[0];
1852
1853                                         if ( preg_match( '/^(?:' . wfUrlProtocols() . ')/', $link ) ) {
1854                                                 $href = $link;
1855                                         } else {
1856                                                 $title = Title::newFromText( $link );
1857                                                 if ( $title ) {
1858                                                         $title = $title->fixSpecialName();
1859                                                         $href = $title->getLocalURL();
1860                                                 } else {
1861                                                         $href = 'INVALID-TITLE';
1862                                                 }
1863                                         }
1864
1865                                         $bar[$heading][] = array(
1866                                                 'text' => $text,
1867                                                 'href' => $href,
1868                                                 'id' => 'n-' . strtr($line[1], ' ', '-'),
1869                                                 'active' => false
1870                                         );
1871                                 } else { continue; }
1872                         }
1873                 }
1874                 wfRunHooks('SkinBuildSidebar', array($this, &$bar));
1875                 if ( $wgEnableSidebarCache ) $parserMemc->set( $key, $bar, $wgSidebarCacheExpiry );
1876                 wfProfileOut( __METHOD__ );
1877                 return $bar;
1878         }
1879 }