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         // @todo Fixme: should be protected :-\
  28         var $mTitle = null;
  29
  30         /** Constructor, call parent constructor */
  31         function Skin() { parent::__construct(); }
  32
  33         /**
  34          * Fetch the set of available skins.
  35          * @return array of strings
  36          * @static
  37          */
  38         static function getSkinNames() {
  39                 global $wgValidSkinNames;
  40                 static $skinsInitialised = false;
  41                 if ( !$skinsInitialised ) {
  42                         # Get a list of available skins
  43                         # Build using the regular expression '^(.*).php$'
  44                         # Array keys are all lower case, array value keep the case used by filename
  45                         #
  46                         wfProfileIn( __METHOD__ . '-init' );
  47                         global $wgStyleDirectory;
  48                         $skinDir = dir( $wgStyleDirectory );
  49
  50                         # while code from www.php.net
  51                         while( false !== ( $file = $skinDir->read() ) ) {
  52                                 // Skip non-PHP files, hidden files, and '.dep' includes
  53                                 $matches = array();
  54                                 if( preg_match( '/^([^.]*)\.php$/', $file, $matches ) ) {
  55                                         $aSkin = $matches[1];
  56                                         $wgValidSkinNames[strtolower($aSkin)] = $aSkin;
  57                                 }
  58                         }
  59                         $skinDir->close();
  60                         $skinsInitialised = true;
  61                         wfProfileOut( __METHOD__ . '-init' );
  62                 }
  63                 return $wgValidSkinNames;
  64         }
  65
  66         /**
  67          * Fetch the list of usable skins in regards to $wgSkipSkins.
  68          * Useful for Special:Preferences and other places where you
  69          * only want to show skins users _can_ use.
  70          * @return array of strings
  71          */
  72         public static function getUsableSkins() {
  73                 global $wgSkipSkins;
  74                 $usableSkins = self::getSkinNames();
  75                 foreach ( $wgSkipSkins as $skip ) {
  76                         unset( $usableSkins[$skip] );
  77                 }
  78                 return $usableSkins;
  79         }
  80
  81         /**
  82          * Normalize a skin preference value to a form that can be loaded.
  83          * If a skin can't be found, it will fall back to the configured
  84          * default (or the old 'Classic' skin if that's broken).
  85          * @param string $key
  86          * @return string
  87          * @static
  88          */
  89         static function normalizeKey( $key ) {
  90                 global $wgDefaultSkin;
  91                 $skinNames = Skin::getSkinNames();
  92
  93                 if( $key == '' ) {
  94                         // Don't return the default immediately;
  95                         // in a misconfiguration we need to fall back.
  96                         $key = $wgDefaultSkin;
  97                 }
  98
  99                 if( isset( $skinNames[$key] ) ) {
 100                         return $key;
 101                 }
 102
 103                 // Older versions of the software used a numeric setting
 104                 // in the user preferences.
 105                 $fallback = array(
 106                         0 => $wgDefaultSkin,
 107                         1 => 'nostalgia',
 108                         2 => 'cologneblue' );
 109
 110                 if( isset( $fallback[$key] ) ){
 111                         $key = $fallback[$key];
 112                 }
 113
 114                 if( isset( $skinNames[$key] ) ) {
 115                         return $key;
 116                 } else {
 117                         return 'monobook';
 118                 }
 119         }
 120
 121         /**
 122          * Factory method for loading a skin of a given type
 123          * @param string $key 'monobook', 'standard', etc
 124          * @return Skin
 125          * @static
 126          */
 127         static function &newFromKey( $key ) {
 128                 global $wgStyleDirectory;
 129
 130                 $key = Skin::normalizeKey( $key );
 131
 132                 $skinNames = Skin::getSkinNames();
 133                 $skinName = $skinNames[$key];
 134                 $className = 'Skin'.ucfirst($key);
 135
 136                 # Grab the skin class and initialise it.
 137                 if ( !class_exists( $className ) ) {
 138                         // Preload base classes to work around APC/PHP5 bug
 139                         $deps = "{$wgStyleDirectory}/{$skinName}.deps.php";
 140                         if( file_exists( $deps ) ) include_once( $deps );
 141                         require_once( "{$wgStyleDirectory}/{$skinName}.php" );
 142
 143                         # Check if we got if not failback to default skin
 144                         if( !class_exists( $className ) ) {
 145                                 # DO NOT die if the class isn't found. This breaks maintenance
 146                                 # scripts and can cause a user account to be unrecoverable
 147                                 # except by SQL manipulation if a previously valid skin name
 148                                 # is no longer valid.
 149                                 wfDebug( "Skin class does not exist: $className\n" );
 150                                 $className = 'SkinMonobook';
 151                                 require_once( "{$wgStyleDirectory}/MonoBook.php" );
 152                         }
 153                 }
 154                 $skin = new $className;
 155                 return $skin;
 156         }
 157
 158         /** @return string path to the skin stylesheet */
 159         function getStylesheet() {
 160                 return 'common/wikistandard.css';
 161         }
 162
 163         /** @return string skin name */
 164         public function getSkinName() {
 165                 return $this->skinname;
 166         }
 167
 168         function qbSetting() {
 169                 global $wgOut, $wgUser;
 170
 171                 if ( $wgOut->isQuickbarSuppressed() ) { return 0; }
 172                 $q = $wgUser->getOption( 'quickbar', 0 );
 173                 return $q;
 174         }
 175
 176         function initPage( OutputPage $out ) {
 177                 global $wgFavicon, $wgAppleTouchIcon;
 178
 179                 wfProfileIn( __METHOD__ );
 180
 181                 # Generally the order of the favicon and apple-touch-icon links
 182                 # should not matter, but Konqueror (3.5.9 at least) incorrectly
 183                 # uses whichever one appears later in the HTML source.  Make sure
 184                 # apple-touch-icon is specified first to avoid this.
 185                 if( false !== $wgAppleTouchIcon ) {
 186                         $out->addLink( array( 'rel' => 'apple-touch-icon', 'href' => $wgAppleTouchIcon ) );
 187                 }
 188
 189                 if( false !== $wgFavicon ) {
 190                         $out->addLink( array( 'rel' => 'shortcut icon', 'href' => $wgFavicon ) );
 191                 }
 192
 193                 # OpenSearch description link
 194                 $out->addLink( array(
 195                         'rel' => 'search',
 196                         'type' => 'application/opensearchdescription+xml',
 197                         'href' => wfScript( 'opensearch_desc' ),
 198                         'title' => wfMsgForContent( 'opensearch-desc' ),
 199                 ));
 200
 201                 $this->addMetadataLinks( $out );
 202
 203                 $this->mRevisionId = $out->mRevisionId;
 204
 205                 $this->preloadExistence();
 206
 207                 wfProfileOut( __METHOD__ );
 208         }
 209
 210         /**
 211          * Preload the existence of three commonly-requested pages in a single query
 212          */
 213         function preloadExistence() {
 214                 global $wgUser;
 215
 216                 // User/talk link
 217                 $titles = array( $wgUser->getUserPage(), $wgUser->getTalkPage() );
 218
 219                 // Other tab link
 220                 if ( $this->mTitle->getNamespace() == NS_SPECIAL ) {
 221                         // nothing
 222                 } elseif ( $this->mTitle->isTalkPage() ) {
 223                         $titles[] = $this->mTitle->getSubjectPage();
 224                 } else {
 225                         $titles[] = $this->mTitle->getTalkPage();
 226                 }
 227
 228                 $lb = new LinkBatch( $titles );
 229                 $lb->execute();
 230         }
 231
 232         function addMetadataLinks( OutputPage $out ) {
 233                 global $wgEnableDublinCoreRdf, $wgEnableCreativeCommonsRdf;
 234                 global $wgRightsPage, $wgRightsUrl;
 235
 236                 if( $out->isArticleRelated() ) {
 237                         # note: buggy CC software only reads first "meta" link
 238                         if( $wgEnableCreativeCommonsRdf ) {
 239                                 $out->addMetadataLink( array(
 240                                         'title' => 'Creative Commons',
 241                                         'type' => 'application/rdf+xml',
 242                                         'href' => $this->mTitle->getLocalURL( 'action=creativecommons' ) )
 243                                 );
 244                         }
 245                         if( $wgEnableDublinCoreRdf ) {
 246                                 $out->addMetadataLink( array(
 247                                         'title' => 'Dublin Core',
 248                                         'type' => 'application/rdf+xml',
 249                                         'href' => $this->mTitle->getLocalURL( 'action=dublincore' ) )
 250                                 );
 251                         }
 252                 }
 253                 $copyright = '';
 254                 if( $wgRightsPage ) {
 255                         $copy = Title::newFromText( $wgRightsPage );
 256                         if( $copy ) {
 257                                 $copyright = $copy->getLocalURL();
 258                         }
 259                 }
 260                 if( !$copyright && $wgRightsUrl ) {
 261                         $copyright = $wgRightsUrl;
 262                 }
 263                 if( $copyright ) {
 264                         $out->addLink( array(
 265                                 'rel' => 'copyright',
 266                                 'href' => $copyright )
 267                         );
 268                 }
 269         }
 270
 271         /**
 272          * Set some local variables
 273          */
 274         protected function setMembers(){
 275                 global $wgUser;
 276                 $this->mUser = $wgUser;
 277                 $this->userpage = $wgUser->getUserPage()->getPrefixedText();
 278                 $this->usercss = false;
 279         }
 280
 281         /**
 282          * Set the title
 283          * @param Title $t The title to use
 284          */
 285         public function setTitle( $t ) {
 286                 $this->mTitle = $t;
 287         }
 288
 289         /** Get the title */
 290         public function getTitle() {
 291                 return $this->mTitle;
 292         }
 293
 294         function outputPage( OutputPage $out ) {
 295                 global $wgDebugComments;
 296                 wfProfileIn( __METHOD__ );
 297
 298                 $this->setMembers();
 299                 $this->initPage( $out );
 300
 301                 // See self::afterContentHook() for documentation
 302                 $afterContent = $this->afterContentHook();
 303
 304                 $out->out( $out->headElement( $this ) );
 305
 306                 $out->out( "\n<body" );
 307                 $ops = $this->getBodyOptions();
 308                 foreach ( $ops as $name => $val ) {
 309                         $out->out( " $name='$val'" );
 310                 }
 311                 $out->out( ">\n" );
 312                 if ( $wgDebugComments ) {
 313                         $out->out( "<!-- Wiki debugging output:\n" .
 314                           $out->mDebugtext . "-->\n" );
 315                 }
 316
 317                 $out->out( $this->beforeContent() );
 318
 319                 $out->out( $out->mBodytext . "\n" );
 320
 321                 $out->out( $this->afterContent() );
 322
 323                 $out->out( $afterContent );
 324
 325                 $out->out( $this->bottomScripts() );
 326
 327                 $out->out( wfReportTime() );
 328
 329                 $out->out( "\n</body></html>" );
 330                 wfProfileOut( __METHOD__ );
 331         }
 332
 333         static function makeVariablesScript( $data ) {
 334                 if( $data ) {
 335                         $r = array();
 336                         foreach ( $data as $name => $value ) {
 337                                 $encValue = Xml::encodeJsVar( $value );
 338                                 $r[] = "$name=$encValue";
 339                         }
 340                         $js = 'var ' . implode( ",\n", $r ) . ';';
 341                         return Html::inlineScript( "\n$js\n" );
 342                 } else {
 343                         return '';
 344                 }
 345         }
 346
 347         /**
 348          * Make a <script> tag containing global variables
 349          * @param $skinName string Name of the skin
 350          * The odd calling convention is for backwards compatibility
 351          * @TODO @FIXME Make this not depend on $wgTitle!
 352          */
 353         static function makeGlobalVariablesScript( $skinName ) {
 354                 if ( is_array( $skinName ) ) {
 355                         # Weird back-compat stuff.
 356                         $skinName = $skinName['skinname'];
 357                 }
 358                 global $wgScript, $wgTitle, $wgStylePath, $wgUser, $wgScriptExtension;
 359                 global $wgArticlePath, $wgScriptPath, $wgServer, $wgContLang, $wgLang;
 360                 global $wgOut, $wgArticle;
 361                 global $wgBreakFrames, $wgRequest, $wgVariantArticlePath, $wgActionPaths;
 362                 global $wgUseAjax, $wgAjaxWatch;
 363                 global $wgVersion, $wgEnableAPI, $wgEnableWriteAPI;
 364                 global $wgRestrictionTypes;
 365                 global $wgMWSuggestTemplate, $wgDBname, $wgEnableMWSuggest;
 366                 global $wgSitename;
 367
 368                 $ns = $wgTitle->getNamespace();
 369                 $nsname = MWNamespace::exists( $ns ) ? MWNamespace::getCanonicalName( $ns ) : $wgTitle->getNsText();
 370                 $separatorTransTable = $wgContLang->separatorTransformTable();
 371                 $separatorTransTable = $separatorTransTable ? $separatorTransTable : array();
 372                 $compactSeparatorTransTable = array(
 373                         implode( "\t", array_keys( $separatorTransTable ) ),
 374                         implode( "\t", $separatorTransTable ),
 375                 );
 376                 $digitTransTable = $wgContLang->digitTransformTable();
 377                 $digitTransTable = $digitTransTable ? $digitTransTable : array();
 378                 $compactDigitTransTable = array(
 379                         implode( "\t", array_keys( $digitTransTable ) ),
 380                         implode( "\t", $digitTransTable ),
 381                 );
 382
 383                 $mainPage = Title::newFromText( wfMsgForContent( 'mainpage' ) );
 384                 $vars = array(
 385                         'skin' => $skinName,
 386                         'stylepath' => $wgStylePath,
 387                         'urlprotocols' => wfUrlProtocols(),
 388                         'wgArticlePath' => $wgArticlePath,
 389                         'wgScriptPath' => $wgScriptPath,
 390                         'wgScriptExtension' => $wgScriptExtension,
 391                         'wgScript' => $wgScript,
 392                         'wgVariantArticlePath' => $wgVariantArticlePath,
 393                         'wgActionPaths' => (object)$wgActionPaths,
 394                         'wgServer' => $wgServer,
 395                         'wgCanonicalNamespace' => $nsname,
 396                         'wgCanonicalSpecialPageName' => $ns == NS_SPECIAL ?
 397                                 SpecialPage::resolveAlias( $wgTitle->getDBkey() ) : false, # bug 21115
 398                         'wgNamespaceNumber' => $wgTitle->getNamespace(),
 399                         'wgPageName' => $wgTitle->getPrefixedDBKey(),
 400                         'wgTitle' => $wgTitle->getText(),
 401                         'wgAction' => $wgRequest->getText( 'action', 'view' ),
 402                         'wgArticleId' => $wgTitle->getArticleId(),
 403                         'wgIsArticle' => $wgOut->isArticle(),
 404                         'wgUserName' => $wgUser->isAnon() ? null : $wgUser->getName(),
 405                         'wgUserGroups' => $wgUser->isAnon() ? null : $wgUser->getEffectiveGroups(),
 406                         'wgUserLanguage' => $wgLang->getCode(),
 407                         'wgContentLanguage' => $wgContLang->getCode(),
 408                         'wgBreakFrames' => $wgBreakFrames,
 409                         'wgCurRevisionId' => isset( $wgArticle ) ? $wgArticle->getLatest() : 0,
 410                         'wgVersion' => $wgVersion,
 411                         'wgEnableAPI' => $wgEnableAPI,
 412                         'wgEnableWriteAPI' => $wgEnableWriteAPI,
 413                         'wgSeparatorTransformTable' => $compactSeparatorTransTable,
 414                         'wgDigitTransformTable' => $compactDigitTransTable,
 415                         'wgMainPageTitle' => $mainPage ? $mainPage->getPrefixedText() : null,
 416                         'wgFormattedNamespaces' => $wgContLang->getFormattedNamespaces(),
 417                         'wgNamespaceIds' => $wgContLang->getNamespaceIds(),
 418                         'wgSiteName' => $wgSitename,
 419                         'wgCategories' => $wgOut->getCategories(),
 420                 );
 421                 if ( $wgContLang->hasVariants() ) {
 422                         $vars['wgUserVariant'] = $wgContLang->getPreferredVariant();
 423                 }
 424
 425                 //if on upload page output the extension list & js_upload
 426                 if( SpecialPage::resolveAlias( $wgTitle->getDBkey() ) ==  "Upload" ) {
 427                         global $wgFileExtensions, $wgAjaxUploadInterface;
 428                         $vars['wgFileExtensions'] = $wgFileExtensions;
 429                 }
 430
 431                 if( $wgUseAjax && $wgEnableMWSuggest && !$wgUser->getOption( 'disablesuggest', false ) ){
 432                         $vars['wgMWSuggestTemplate'] = SearchEngine::getMWSuggestTemplate();
 433                         $vars['wgDBname'] = $wgDBname;
 434                         $vars['wgSearchNamespaces'] = SearchEngine::userNamespaces( $wgUser );
 435                         $vars['wgMWSuggestMessages'] = array( wfMsg( 'search-mwsuggest-enabled' ), wfMsg( 'search-mwsuggest-disabled' ) );
 436                 }
 437
 438                 foreach( $wgRestrictionTypes as $type )
 439                         $vars['wgRestriction' . ucfirst( $type )] = $wgTitle->getRestrictions( $type );
 440
 441                 if ( $wgOut->isArticleRelated() && $wgUseAjax && $wgAjaxWatch && $wgUser->isLoggedIn() ) {
 442                         $msgs = (object)array();
 443                         foreach ( array( 'watch', 'unwatch', 'watching', 'unwatching',
 444                                 'tooltip-ca-watch', 'tooltip-ca-unwatch' ) as $msgName ) {
 445                                 $msgs->{$msgName . 'Msg'} = wfMsg( $msgName );
 446                         }
 447                         $vars['wgAjaxWatch'] = $msgs;
 448                 }
 449
 450                 // Allow extensions to add their custom variables to the global JS variables
 451                 wfRunHooks( 'MakeGlobalVariablesScript', array( &$vars ) );
 452
 453                 return self::makeVariablesScript( $vars );
 454         }
 455
 456         /**
 457          * To make it harder for someone to slip a user a fake
 458          * user-JavaScript or user-CSS preview, a random token
 459          * is associated with the login session. If it's not
 460          * passed back with the preview request, we won't render
 461          * the code.
 462          *
 463          * @param string $action
 464          * @return bool
 465          */
 466         public function userCanPreview( $action ) {
 467                 global $wgRequest, $wgUser;
 468
 469                 if( $action != 'submit' )
 470                         return false;
 471                 if( !$wgRequest->wasPosted() )
 472                         return false;
 473                 if( !$this->mTitle->userCanEditCssSubpage() )
 474                         return false;
 475                 if( !$this->mTitle->userCanEditJsSubpage() )
 476                         return false;
 477                 return $wgUser->matchEditToken(
 478                         $wgRequest->getVal( 'wpEditToken' ) );
 479         }
 480
 481         /**
 482          * generated JavaScript action=raw&gen=js
 483          * This returns MediaWiki:Common.js and MediaWiki:[Skinname].js concate-
 484          * nated together.  For some bizarre reason, it does *not* return any
 485          * custom user JS from subpages.  Huh?
 486          *
 487          * There's absolutely no reason to have separate Monobook/Common JSes.
 488          * Any JS that cares can just check the skin variable generated at the
 489          * top.  For now Monobook.js will be maintained, but it should be consi-
 490          * dered deprecated.
 491          *
 492          * @param $force_skin string If set, overrides the skin name
 493          *
 494          * @return string
 495          */
 496         public function generateUserJs( $skinName = null ) {
 497                 global $wgStylePath;
 498
 499                 wfProfileIn( __METHOD__ );
 500                 if( !$skinName ) {
 501                         $skinName =     $this->getSkinName();
 502                 }
 503
 504                 $s = "/* generated javascript */\n";
 505                 $s .= "var skin = '" . Xml::escapeJsString($skinName ) . "';\n";
 506                 $s .= "var stylepath = '" . Xml::escapeJsString( $wgStylePath ) . "';";
 507                 $s .= "\n\n/* MediaWiki:Common.js */\n";
 508                 $commonJs = wfMsgForContent( 'common.js' );
 509                 if ( !wfEmptyMsg( 'common.js', $commonJs ) ) {
 510                         $s .= $commonJs;
 511                 }
 512
 513                 $s .= "\n\n/* MediaWiki:".ucfirst( $skinName ).".js */\n";
 514                 // avoid inclusion of non defined user JavaScript (with custom skins only)
 515                 // by checking for default message content
 516                 $msgKey = ucfirst( $skinName ) . '.js';
 517                 $userJS = wfMsgForContent( $msgKey );
 518                 if ( !wfEmptyMsg( $msgKey, $userJS ) ) {
 519                         $s .= $userJS;
 520                 }
 521
 522                 wfProfileOut( __METHOD__ );
 523                 return $s;
 524         }
 525
 526         /**
 527          * Generate user stylesheet for action=raw&gen=css
 528          */
 529         public function generateUserStylesheet() {
 530                 wfProfileIn( __METHOD__ );
 531                 $s = "/* generated user stylesheet */\n" .
 532                         $this->reallyGenerateUserStylesheet();
 533                 wfProfileOut( __METHOD__ );
 534                 return $s;
 535         }
 536
 537         /**
 538          * Split for easier subclassing in SkinSimple, SkinStandard and SkinCologneBlue
 539          */
 540         protected function reallyGenerateUserStylesheet(){
 541                 global $wgUser;
 542                 $s = '';
 543                 if( ( $undopt = $wgUser->getOption( 'underline' ) ) < 2 ) {
 544                         $underline = $undopt ? 'underline' : 'none';
 545                         $s .= "a { text-decoration: $underline; }\n";
 546                 }
 547                 if( $wgUser->getOption( 'highlightbroken' ) ) {
 548                         $s .= "a.new, #quickbar a.new { color: #CC2200; }\n";
 549                 } else {
 550                         $s .= <<<CSS
 551 a.new, #quickbar a.new,
 552 a.stub, #quickbar a.stub {
 553         color: inherit;
 554 }
 555 a.new:after, #quickbar a.new:after {
 556         content: "?";
 557         color: #CC2200;
 558 }
 559 a.stub:after, #quickbar a.stub:after {
 560         content: "!";
 561         color: #772233;
 562 }
 563 CSS;
 564                 }
 565                 if( $wgUser->getOption( 'justify' ) ) {
 566                         $s .= "#article, #bodyContent, #mw_content { text-align: justify; }\n";
 567                 }
 568                 if( !$wgUser->getOption( 'showtoc' ) ) {
 569                         $s .= "#toc { display: none; }\n";
 570                 }
 571                 if( !$wgUser->getOption( 'editsection' ) ) {
 572                         $s .= ".editsection { display: none; }\n";
 573                 }
 574                 $fontstyle = $wgUser->getOption( 'editfont' );
 575                 if ( $fontstyle !== 'default' ) {
 576                         $s .= "textarea { font-family: $fontstyle; }\n";
 577                 }
 578                 return $s;
 579         }
 580
 581         /**
 582          * @private
 583          */
 584         function setupUserCss( OutputPage $out ) {
 585                 global $wgRequest, $wgContLang, $wgUser;
 586                 global $wgAllowUserCss, $wgUseSiteCss, $wgSquidMaxage, $wgStylePath;
 587
 588                 wfProfileIn( __METHOD__ );
 589
 590                 $this->setupSkinUserCss( $out );
 591
 592                 $siteargs = array(
 593                         'action' => 'raw',
 594                         'maxage' => $wgSquidMaxage,
 595                 );
 596
 597                 // Add any extension CSS
 598                 foreach ( $out->getExtStyle() as $url ) {
 599                         $out->addStyle( $url );
 600                 }
 601
 602                 // If we use the site's dynamic CSS, throw that in, too
 603                 // Per-site custom styles
 604                 if( $wgUseSiteCss ) {
 605                         global $wgHandheldStyle;
 606                         $query = wfArrayToCGI( array(
 607                                 'usemsgcache' => 'yes',
 608                                 'ctype' => 'text/css',
 609                                 'smaxage' => $wgSquidMaxage
 610                         ) + $siteargs );
 611                         # Site settings must override extension css! (bug 15025)
 612                         $out->addStyle( self::makeNSUrl( 'Common.css', $query, NS_MEDIAWIKI ) );
 613                         $out->addStyle( self::makeNSUrl( 'Print.css', $query, NS_MEDIAWIKI ), 'print' );
 614                         if( $wgHandheldStyle ) {
 615                                 $out->addStyle( self::makeNSUrl( 'Handheld.css', $query, NS_MEDIAWIKI ), 'handheld' );
 616                         }
 617                         $out->addStyle( self::makeNSUrl( $this->getSkinName() . '.css', $query, NS_MEDIAWIKI ) );
 618                 }
 619
 620                 if( $wgUser->isLoggedIn() ) {
 621                         // Ensure that logged-in users' generated CSS isn't clobbered
 622                         // by anons' publicly cacheable generated CSS.
 623                         $siteargs['smaxage'] = '0';
 624                         $siteargs['ts'] = $wgUser->mTouched;
 625                 }
 626                 // Per-user styles based on preferences
 627                 $siteargs['gen'] = 'css';
 628                 if( ( $us = $wgRequest->getVal( 'useskin', '' ) ) !== '' ) {
 629                         $siteargs['useskin'] = $us;
 630                 }
 631                 $out->addStyle( self::makeUrl( '-', wfArrayToCGI( $siteargs ) ) );
 632
 633                 // Per-user custom style pages
 634                 if( $wgAllowUserCss && $wgUser->isLoggedIn() ) {
 635                         $action = $wgRequest->getVal( 'action' );
 636                         # If we're previewing the CSS page, use it
 637                         if( $this->mTitle->isCssSubpage() && $this->userCanPreview( $action ) ) {
 638                                 // @FIXME: properly escape the cdata!
 639                                 $out->addInlineStyle( $wgRequest->getText( 'wpTextbox1' ) );
 640                         } else {
 641                                 $out->addStyle( self::makeUrl( $this->userpage . '/' . $this->getSkinName() .'.css',
 642                                         'action=raw&ctype=text/css' ) );
 643                         }
 644                 }
 645
 646                 wfProfileOut( __METHOD__ );
 647         }
 648
 649         /**
 650          * Add skin specific stylesheets
 651          * @param $out OutputPage
 652          */
 653         function setupSkinUserCss( OutputPage $out ) {
 654                 $out->addStyle( 'common/shared.css' );
 655                 $out->addStyle( 'common/oldshared.css' );
 656                 $out->addStyle( $this->getStylesheet() );
 657                 $out->addStyle( 'common/common_rtl.css', '', '', 'rtl' );
 658         }
 659
 660         function getBodyOptions() {
 661                 global $wgUser, $wgOut, $wgRequest, $wgContLang;
 662
 663                 extract( $wgRequest->getValues( 'oldid', 'redirect', 'diff' ) );
 664
 665                 if ( 0 != $this->mTitle->getNamespace() ) {
 666                         $a = array( 'bgcolor' => '#ffffec' );
 667                 }
 668                 else $a = array( 'bgcolor' => '#FFFFFF' );
 669                 if( $wgOut->isArticle() && $wgUser->getOption( 'editondblclick' ) &&
 670                   $this->mTitle->quickUserCan( 'edit' ) ) {
 671                         $s = $this->mTitle->getFullURL( $this->editUrlOptions() );
 672                         $s = 'document.location = "' .Xml::escapeJsString( $s ) .'";';
 673                         $a += array( 'ondblclick' => $s );
 674                 }
 675                 $a['onload'] = $wgOut->getOnloadHandler();
 676                 $a['class'] =
 677                         'mediawiki' .
 678                         ' '.( $wgContLang->getDir() ).
 679                         ' '.$this->getPageClasses( $this->mTitle ) .
 680                         ' skin-'. Sanitizer::escapeClass( $this->getSkinName() );
 681                 return $a;
 682         }
 683
 684         function getPageClasses( $title ) {
 685                 $numeric = 'ns-'.$title->getNamespace();
 686                 if( $title->getNamespace() == NS_SPECIAL ) {
 687                         $type = 'ns-special';
 688                 } elseif( $title->isTalkPage() ) {
 689                         $type = 'ns-talk';
 690                 } else {
 691                         $type = 'ns-subject';
 692                 }
 693                 $name = Sanitizer::escapeClass( 'page-'.$title->getPrefixedText() );
 694                 return "$numeric $type $name";
 695         }
 696
 697         /**
 698          * URL to the logo
 699          */
 700         function getLogo() {
 701                 global $wgLogo;
 702                 return $wgLogo;
 703         }
 704
 705         /**
 706          * This will be called immediately after the <body> tag.  Split into
 707          * two functions to make it easier to subclass.
 708          */
 709         function beforeContent() {
 710                 return $this->doBeforeContent();
 711         }
 712
 713         function doBeforeContent() {
 714                 global $wgContLang;
 715                 wfProfileIn( __METHOD__ );
 716
 717                 $s = '';
 718                 $qb = $this->qbSetting();
 719
 720                 if( $langlinks = $this->otherLanguages() ) {
 721                         $rows = 2;
 722                         $borderhack = '';
 723                 } else {
 724                         $rows = 1;
 725                         $langlinks = false;
 726                         $borderhack = 'class="top"';
 727                 }
 728
 729                 $s .= "\n<div id='content'>\n<div id='topbar'>\n" .
 730                   "<table border='0' cellspacing='0' width='98%'>\n<tr>\n";
 731
 732                 $shove = ( $qb != 0 );
 733                 $left = ( $qb == 1 || $qb == 3 );
 734                 if( $wgContLang->isRTL() ) $left = !$left;
 735
 736                 if( !$shove ) {
 737                         $s .= "<td class='top' align='left' valign='top' rowspan='{$rows}'>\n" .
 738                           $this->logoText() . '</td>';
 739                 } elseif( $left ) {
 740                         $s .= $this->getQuickbarCompensator( $rows );
 741                 }
 742                 $l = $wgContLang->alignStart();
 743                 $s .= "<td {$borderhack} align='$l' valign='top'>\n";
 744
 745                 $s .= $this->topLinks();
 746                 $s .= "<p class='subtitle'>" . $this->pageTitleLinks() . "</p>\n";
 747
 748                 $r = $wgContLang->alignEnd();
 749                 $s .= "</td>\n<td {$borderhack} valign='top' align='$r' nowrap='nowrap'>";
 750                 $s .= $this->nameAndLogin();
 751                 $s .= "\n<br />" . $this->searchForm() . "</td>";
 752
 753                 if ( $langlinks ) {
 754                         $s .= "</tr>\n<tr>\n<td class='top' colspan=\"2\">$langlinks</td>\n";
 755                 }
 756
 757                 if ( $shove && !$left ) { # Right
 758                         $s .= $this->getQuickbarCompensator( $rows );
 759                 }
 760                 $s .= "</tr>\n</table>\n</div>\n";
 761                 $s .= "\n<div id='article'>\n";
 762
 763                 $notice = wfGetSiteNotice();
 764                 if( $notice ) {
 765                         $s .= "\n<div id='siteNotice'>$notice</div>\n";
 766                 }
 767                 $s .= $this->pageTitle();
 768                 $s .= $this->pageSubtitle();
 769                 $s .= $this->getCategories();
 770                 wfProfileOut( __METHOD__ );
 771                 return $s;
 772         }
 773
 774
 775         function getCategoryLinks() {
 776                 global $wgOut, $wgUseCategoryBrowser;
 777                 global $wgContLang, $wgUser;
 778
 779                 if( count( $wgOut->mCategoryLinks ) == 0 ) return '';
 780
 781                 # Separator
 782                 $sep = wfMsgExt( 'catseparator', array( 'parsemag', 'escapenoentities' ) );
 783
 784                 // Use Unicode bidi embedding override characters,
 785                 // to make sure links don't smash each other up in ugly ways.
 786                 $dir = $wgContLang->getDir();
 787                 $embed = "<span dir='$dir'>";
 788                 $pop = '</span>';
 789
 790                 $allCats = $wgOut->getCategoryLinks();
 791                 $s = '';
 792                 $colon = wfMsgExt( 'colon-separator', 'escapenoentities' );
 793                 if ( !empty( $allCats['normal'] ) ) {
 794                         $t = $embed . implode( "{$pop} {$sep} {$embed}" , $allCats['normal'] ) . $pop;
 795
 796                         $msg = wfMsgExt( 'pagecategories', array( 'parsemag', 'escapenoentities' ), count( $allCats['normal'] ) );
 797                         $s .= '<div id="mw-normal-catlinks">' .
 798                                 $this->link( Title::newFromText( wfMsgForContent( 'pagecategorieslink' ) ), $msg )
 799                                 . $colon . $t . '</div>';
 800                 }
 801
 802                 # Hidden categories
 803                 if ( isset( $allCats['hidden'] ) ) {
 804                         if ( $wgUser->getBoolOption( 'showhiddencats' ) ) {
 805                                 $class ='mw-hidden-cats-user-shown';
 806                         } elseif ( $this->mTitle->getNamespace() == NS_CATEGORY ) {
 807                                 $class = 'mw-hidden-cats-ns-shown';
 808                         } else {
 809                                 $class = 'mw-hidden-cats-hidden';
 810                         }
 811                         $s .= "<div id=\"mw-hidden-catlinks\" class=\"$class\">" .
 812                                 wfMsgExt( 'hidden-categories', array( 'parsemag', 'escapenoentities' ), count( $allCats['hidden'] ) ) .
 813                                 $colon . $embed . implode( "$pop $sep $embed", $allCats['hidden'] ) . $pop .
 814                                 "</div>";
 815                 }
 816
 817                 # optional 'dmoz-like' category browser. Will be shown under the list
 818                 # of categories an article belong to
 819                 if( $wgUseCategoryBrowser ){
 820                         $s .= '<br /><hr />';
 821
 822                         # get a big array of the parents tree
 823                         $parenttree = $this->mTitle->getParentCategoryTree();
 824                         # Skin object passed by reference cause it can not be
 825                         # accessed under the method subfunction drawCategoryBrowser
 826                         $tempout = explode( "\n", Skin::drawCategoryBrowser( $parenttree, $this ) );
 827                         # Clean out bogus first entry and sort them
 828                         unset( $tempout[0] );
 829                         asort( $tempout );
 830                         # Output one per line
 831                         $s .= implode( "<br />\n", $tempout );
 832                 }
 833
 834                 return $s;
 835         }
 836
 837         /**
 838          * Render the array as a serie of links.
 839          * @param $tree Array: categories tree returned by Title::getParentCategoryTree
 840          * @param &skin Object: skin passed by reference
 841          * @return String separated by &gt;, terminate with "\n"
 842          */
 843         function drawCategoryBrowser( $tree, &$skin ){
 844                 $return = '';
 845                 foreach( $tree as $element => $parent ) {
 846                         if( empty( $parent ) ) {
 847                                 # element start a new list
 848                                 $return .= "\n";
 849                         } else {
 850                                 # grab the others elements
 851                                 $return .= Skin::drawCategoryBrowser( $parent, $skin ) . ' &gt; ';
 852                         }
 853                         # add our current element to the list
 854                         $eltitle = Title::newFromText( $element );
 855                         $return .=  $skin->link( $eltitle, $eltitle->getText() );
 856                 }
 857                 return $return;
 858         }
 859
 860         function getCategories() {
 861                 $catlinks = $this->getCategoryLinks();
 862
 863                 $classes = 'catlinks';
 864
 865                 // Check what we're showing
 866                 global $wgOut, $wgUser;
 867                 $allCats = $wgOut->getCategoryLinks();
 868                 $showHidden = $wgUser->getBoolOption( 'showhiddencats' ) ||
 869                                                 $this->mTitle->getNamespace() == NS_CATEGORY;
 870
 871                 if( empty($allCats['normal']) && !( !empty($allCats['hidden']) && $showHidden ) ) {
 872                         $classes .= ' catlinks-allhidden';
 873                 }
 874
 875                 return "<div id='catlinks' class='$classes'>{$catlinks}</div>";
 876         }
 877
 878         function getQuickbarCompensator( $rows = 1 ) {
 879                 return "<td width='152' rowspan='{$rows}'>&nbsp;</td>";
 880         }
 881
 882         /**
 883          * This runs a hook to allow extensions placing their stuff after content
 884          * and article metadata (e.g. categories).
 885          * Note: This function has nothing to do with afterContent().
 886          *
 887          * This hook is placed here in order to allow using the same hook for all
 888          * skins, both the SkinTemplate based ones and the older ones, which directly
 889          * use this class to get their data.
 890          *
 891          * The output of this function gets processed in SkinTemplate::outputPage() for
 892          * the SkinTemplate based skins, all other skins should directly echo it.
 893          *
 894          * Returns an empty string by default, if not changed by any hook function.
 895          */
 896         protected function afterContentHook() {
 897                 $data = '';
 898
 899                 if( wfRunHooks( 'SkinAfterContent', array( &$data ) ) ){
 900                         // adding just some spaces shouldn't toggle the output
 901                         // of the whole <div/>, so we use trim() here
 902                         if( trim( $data ) != '' ){
 903                                 // Doing this here instead of in the skins to
 904                                 // ensure that the div has the same ID in all
 905                                 // skins
 906                                 $data = "<div id='mw-data-after-content'>\n" .
 907                                         "\t$data\n" .
 908                                         "</div>\n";
 909                         }
 910                 } else {
 911                         wfDebug( "Hook SkinAfterContent changed output processing.\n" );
 912                 }
 913
 914                 return $data;
 915         }
 916
 917         /**
 918          * Generate debug data HTML for displaying at the bottom of the main content
 919          * area.
 920          * @return String HTML containing debug data, if enabled (otherwise empty).
 921          */
 922         protected function generateDebugHTML() {
 923                 global $wgShowDebug, $wgOut;
 924                 if ( $wgShowDebug ) {
 925                         $listInternals = $this->formatDebugHTML( $wgOut->mDebugtext );
 926                         return "\n<hr />\n<strong>Debug data:</strong><ul style=\"font-family:monospace;\" id=\"mw-debug-html\">" .
 927                                 $listInternals . "</ul>\n";
 928                 }
 929                 return '';
 930         }
 931
 932         private function formatDebugHTML( $debugText ) {
 933                 $lines = explode( "\n", $debugText );
 934                 $curIdent = 0;
 935                 $ret = '<li>';
 936                 foreach( $lines as $line ) {
 937                         $m = array();
 938                         $display = ltrim( $line );
 939                         $ident = strlen( $line ) - strlen( $display );
 940                         $diff = $ident - $curIdent;
 941
 942                         if ( $display == '' )
 943                                 $display = "\xc2\xa0";
 944
 945                         if ( !$ident && $diff < 0 && substr( $display, 0, 9 ) != 'Entering ' && substr( $display, 0, 8 ) != 'Exiting ' ) {
 946                                 $ident = $curIdent;
 947                                 $diff = 0;
 948                                 $display = '<span style="background:yellow;">' . htmlspecialchars( $display ) . '</span>';
 949                         } else {
 950                                 $display = htmlspecialchars( $display );
 951                         }
 952
 953                         if ( $diff < 0 )
 954                                 $ret .= str_repeat( "</li></ul>\n", -$diff ) . "</li><li>\n";
 955                         elseif ( $diff == 0 )
 956                                 $ret .= "</li><li>\n";
 957                         else
 958                                 $ret .= str_repeat( "<ul><li>\n", $diff );
 959                         $ret .= $display . "\n";
 960
 961                         $curIdent = $ident;
 962                 }
 963                 $ret .= str_repeat( '</li></ul>', $curIdent ) . '</li>';
 964                 return $ret;
 965         }
 966
 967         /**
 968          * This gets called shortly before the </body> tag.
 969          * @return String HTML to be put before </body>
 970          */
 971         function afterContent() {
 972                 $printfooter = "<div class=\"printfooter\">\n" . $this->printFooter() . "</div>\n";
 973                 return $printfooter . $this->generateDebugHTML() . $this->doAfterContent();
 974         }
 975
 976         /**
 977          * This gets called shortly before the </body> tag.
 978          * @return String HTML-wrapped JS code to be put before </body>
 979          */
 980         function bottomScripts() {
 981                 $bottomScriptText = "\n" . Html::inlineScript( 'if (window.runOnloadHook) runOnloadHook();' ) . "\n";
 982                 wfRunHooks( 'SkinAfterBottomScripts', array( $this, &$bottomScriptText ) );
 983                 return $bottomScriptText;
 984         }
 985
 986         /** @return string Retrievied from HTML text */
 987         function printSource() {
 988                 $url = htmlspecialchars( $this->mTitle->getFullURL() );
 989                 return wfMsg( 'retrievedfrom', '<a href="'.$url.'">'.$url.'</a>' );
 990         }
 991
 992         function printFooter() {
 993                 return "<p>" .  $this->printSource() .
 994                         "</p>\n\n<p>" . $this->pageStats() . "</p>\n";
 995         }
 996
 997         /** overloaded by derived classes */
 998         function doAfterContent() { return '</div></div>'; }
 999
1000         function pageTitleLinks() {
1001                 global $wgOut, $wgUser, $wgRequest, $wgLang;
1002
1003                 $oldid = $wgRequest->getVal( 'oldid' );
1004                 $diff = $wgRequest->getVal( 'diff' );
1005                 $action = $wgRequest->getText( 'action' );
1006
1007                 $s[] = $this->printableLink();
1008                 $disclaimer = $this->disclaimerLink(); # may be empty
1009                 if( $disclaimer ) {
1010                         $s[] = $disclaimer;
1011                 }
1012                 $privacy = $this->privacyLink(); # may be empty too
1013                 if( $privacy ) {
1014                         $s[] = $privacy;
1015                 }
1016
1017                 if ( $wgOut->isArticleRelated() ) {
1018                         if ( $this->mTitle->getNamespace() == NS_FILE ) {
1019                                 $name = $this->mTitle->getDBkey();
1020                                 $image = wfFindFile( $this->mTitle );
1021                                 if( $image ) {
1022                                         $link = htmlspecialchars( $image->getURL() );
1023                                         $style = $this->getInternalLinkAttributes( $link, $name );
1024                                         $s[] = "<a href=\"{$link}\"{$style}>{$name}</a>";
1025                                 }
1026                         }
1027                 }
1028                 if ( 'history' == $action || isset( $diff ) || isset( $oldid ) ) {
1029                         $s[] .= $this->link(
1030                                         $this->mTitle,
1031                                         wfMsg( 'currentrev' ),
1032                                         array(),
1033                                         array(),
1034                                         array( 'known', 'noclasses' )
1035                         );
1036                 }
1037
1038                 if ( $wgUser->getNewtalk() ) {
1039                         # do not show "You have new messages" text when we are viewing our
1040                         # own talk page
1041                         if( !$this->mTitle->equals( $wgUser->getTalkPage() ) ) {
1042                                 $tl = $this->link(
1043                                         $wgUser->getTalkPage(),
1044                                         wfMsgHtml( 'newmessageslink' ),
1045                                         array(),
1046                                         array( 'redirect' => 'no' ),
1047                                         array( 'known', 'noclasses' )
1048                                 );
1049
1050                                 $dl = $this->link(
1051                                         $wgUser->getTalkPage(),
1052                                         wfMsgHtml( 'newmessagesdifflink' ),
1053                                         array(),
1054                                         array( 'diff' => 'cur' ),
1055                                         array( 'known', 'noclasses' )
1056                                 );
1057                                 $s[] = '<strong>'. wfMsg( 'youhavenewmessages', $tl, $dl ) . '</strong>';
1058                                 # disable caching
1059                                 $wgOut->setSquidMaxage( 0 );
1060                                 $wgOut->enableClientCache( false );
1061                         }
1062                 }
1063
1064                 $undelete = $this->getUndeleteLink();
1065                 if( !empty( $undelete ) ) {
1066                         $s[] = $undelete;
1067                 }
1068                 return $wgLang->pipeList( $s );
1069         }
1070
1071         function getUndeleteLink() {
1072                 global $wgUser, $wgContLang, $wgLang, $wgRequest;
1073
1074                 $action = $wgRequest->getVal( 'action', 'view' );
1075
1076                 if ( $wgUser->isAllowed( 'deletedhistory' ) &&
1077                         ( $this->mTitle->getArticleId() == 0 || $action == 'history' ) ) {
1078                         $n = $this->mTitle->isDeleted();
1079                         if ( $n ) {
1080                                 if ( $wgUser->isAllowed( 'undelete' ) ) {
1081                                         $msg = 'thisisdeleted';
1082                                 } else {
1083                                         $msg = 'viewdeleted';
1084                                 }
1085                                 return wfMsg(
1086                                         $msg,
1087                                         $this->link(
1088                                                 SpecialPage::getTitleFor( 'Undelete', $this->mTitle->getPrefixedDBkey() ),
1089                                                 wfMsgExt( 'restorelink', array( 'parsemag', 'escape' ), $wgLang->formatNum( $n ) ),
1090                                                 array(),
1091                                                 array(),
1092                                                 array( 'known', 'noclasses' )
1093                                         )
1094                                 );
1095                         }
1096                 }
1097                 return '';
1098         }
1099
1100         function printableLink() {
1101                 global $wgOut, $wgFeedClasses, $wgRequest, $wgLang;
1102
1103                 $s = array();
1104
1105                 if ( !$wgOut->isPrintable() ) {
1106                         $printurl = $wgRequest->escapeAppendQuery( 'printable=yes' );
1107                         $s[] = "<a href=\"$printurl\" rel=\"alternate\">" . wfMsg( 'printableversion' ) . '</a>';
1108                 }
1109
1110                 if( $wgOut->isSyndicated() ) {
1111                         foreach( $wgFeedClasses as $format => $class ) {
1112                                 $feedurl = $wgRequest->escapeAppendQuery( "feed=$format" );
1113                                 $s[] = "<a href=\"$feedurl\" rel=\"alternate\" type=\"application/{$format}+xml\""
1114                                                 . " class=\"feedlink\">" . wfMsgHtml( "feed-$format" ) . "</a>";
1115                         }
1116                 }
1117                 return $wgLang->pipeList( $s );
1118         }
1119
1120         function pageTitle() {
1121                 global $wgOut;
1122                 $s = '<h1 class="pagetitle">' . $wgOut->getPageTitle() . '</h1>';
1123                 return $s;
1124         }
1125
1126         function pageSubtitle() {
1127                 global $wgOut;
1128
1129                 $sub = $wgOut->getSubtitle();
1130                 if ( '' == $sub ) {
1131                         global $wgExtraSubtitle;
1132                         $sub = wfMsgExt( 'tagline', 'parsemag' ) . $wgExtraSubtitle;
1133                 }
1134                 $subpages = $this->subPageSubtitle();
1135                 $sub .= !empty( $subpages ) ? "</p><p class='subpages'>$subpages" : '';
1136                 $s = "<p class='subtitle'>{$sub}</p>\n";
1137                 return $s;
1138         }
1139
1140         function subPageSubtitle() {
1141                 $subpages = '';
1142                 if( !wfRunHooks( 'SkinSubPageSubtitle', array( &$subpages ) ) )
1143                         return $subpages;
1144
1145                 global $wgOut;
1146                 if( $wgOut->isArticle() && MWNamespace::hasSubpages( $this->mTitle->getNamespace() ) ) {
1147                         $ptext = $this->mTitle->getPrefixedText();
1148                         if( preg_match( '/\//', $ptext ) ) {
1149                                 $links = explode( '/', $ptext );
1150                                 array_pop( $links );
1151                                 $c = 0;
1152                                 $growinglink = '';
1153                                 $display = '';
1154                                 foreach( $links as $link ) {
1155                                         $growinglink .= $link;
1156                                         $display .= $link;
1157                                         $linkObj = Title::newFromText( $growinglink );
1158                                         if( is_object( $linkObj ) && $linkObj->exists() ){
1159                                                 $getlink = $this->link(
1160                                                         $linkObj,
1161                                                         htmlspecialchars( $display ),
1162                                                         array(),
1163                                                         array(),
1164                                                         array( 'known', 'noclasses' )
1165                                                 );
1166                                                 $c++;
1167                                                 if( $c > 1 ) {
1168                                                         $subpages .= wfMsgExt( 'pipe-separator', 'escapenoentities' );
1169                                                 } else  {
1170                                                         $subpages .= '&lt; ';
1171                                                 }
1172                                                 $subpages .= $getlink;
1173                                                 $display = '';
1174                                         } else {
1175                                                 $display .= '/';
1176                                         }
1177                                         $growinglink .= '/';
1178                                 }
1179                         }
1180                 }
1181                 return $subpages;
1182         }
1183
1184         /**
1185          * Returns true if the IP should be shown in the header
1186          */
1187         function showIPinHeader() {
1188                 global $wgShowIPinHeader;
1189                 return $wgShowIPinHeader && session_id() != '';
1190         }
1191
1192         function nameAndLogin() {
1193                 global $wgUser, $wgLang, $wgContLang;
1194
1195                 $logoutPage = $wgContLang->specialPage( 'Userlogout' );
1196
1197                 $ret = '';
1198                 if ( $wgUser->isAnon() ) {
1199                         if( $this->showIPinHeader() ) {
1200                                 $name = wfGetIP();
1201
1202                                 $talkLink = $this->link( $wgUser->getTalkPage(),
1203                                         $wgLang->getNsText( NS_TALK ) );
1204
1205                                 $ret .= "$name ($talkLink)";
1206                         } else {
1207                                 $ret .= wfMsg( 'notloggedin' );
1208                         }
1209
1210                         $returnTo = $this->mTitle->getPrefixedDBkey();
1211                         $query = array();
1212                         if ( $logoutPage != $returnTo ) {
1213                                 $query['returnto'] = $returnTo;
1214                         }
1215
1216                         $loginlink = $wgUser->isAllowed( 'createaccount' )
1217                                 ? 'nav-login-createaccount'
1218                                 : 'login';
1219                         $ret .= "\n<br />" . $this->link(
1220                                 SpecialPage::getTitleFor( 'Userlogin' ),
1221                                 wfMsg( $loginlink ), array(), $query
1222                         );
1223                 } else {
1224                         $returnTo = $this->mTitle->getPrefixedDBkey();
1225                         $talkLink = $this->link( $wgUser->getTalkPage(),
1226                                 $wgLang->getNsText( NS_TALK ) );
1227
1228                         $ret .= $this->link( $wgUser->getUserPage(),
1229                                 htmlspecialchars( $wgUser->getName() ) );
1230                         $ret .= " ($talkLink)<br />";
1231                         $ret .= $wgLang->pipeList( array(
1232                                 $this->link(
1233                                         SpecialPage::getTitleFor( 'Userlogout' ), wfMsg( 'logout' ),
1234                                         array(), array( 'returnto' => $returnTo )
1235                                 ),
1236                                 $this->specialLink( 'preferences' ),
1237                         ) );
1238                 }
1239                 $ret = $wgLang->pipeList( array(
1240                         $ret,
1241                         $this->link(
1242                                 Title::newFromText( wfMsgForContent( 'helppage' ) ),
1243                                 wfMsg( 'help' )
1244                         ),
1245                 ) );
1246
1247                 return $ret;
1248         }
1249
1250         function getSearchLink() {
1251                 $searchPage = SpecialPage::getTitleFor( 'Search' );
1252                 return $searchPage->getLocalURL();
1253         }
1254
1255         function escapeSearchLink() {
1256                 return htmlspecialchars( $this->getSearchLink() );
1257         }
1258
1259         function searchForm() {
1260                 global $wgRequest, $wgUseTwoButtonsSearchForm;
1261                 $search = $wgRequest->getText( 'search' );
1262
1263                 $s = '<form id="searchform'.$this->searchboxes.'" name="search" class="inline" method="post" action="'
1264                   . $this->escapeSearchLink() . "\">\n"
1265                   . '<input type="text" id="searchInput'.$this->searchboxes.'" name="search" size="19" value="'
1266                   . htmlspecialchars( substr( $search, 0, 256 ) ) . "\" />\n"
1267                   . '<input type="submit" name="go" value="' . wfMsg( 'searcharticle' ) . '" />';
1268
1269                 if( $wgUseTwoButtonsSearchForm )
1270                         $s .= '&nbsp;<input type="submit" name="fulltext" value="' . wfMsg( 'searchbutton' ) . "\" />\n";
1271                 else
1272                         $s .= ' <a href="' . $this->escapeSearchLink() . '" rel="search">' . wfMsg( 'powersearch-legend' ) . "</a>\n";
1273
1274                 $s .= '</form>';
1275
1276                 // Ensure unique id's for search boxes made after the first
1277                 $this->searchboxes = $this->searchboxes == '' ? 2 : $this->searchboxes + 1;
1278
1279                 return $s;
1280         }
1281
1282         function topLinks() {
1283                 global $wgOut;
1284
1285                 $s = array(
1286                         $this->mainPageLink(),
1287                         $this->specialLink( 'recentchanges' )
1288                 );
1289
1290                 if ( $wgOut->isArticleRelated() ) {
1291                         $s[] = $this->editThisPage();
1292                         $s[] = $this->historyLink();
1293                 }
1294                 # Many people don't like this dropdown box
1295                 #$s[] = $this->specialPagesList();
1296
1297                 if( $this->variantLinks() ) {
1298                         $s[] = $this->variantLinks();
1299                 }
1300
1301                 if( $this->extensionTabLinks() ) {
1302                         $s[] = $this->extensionTabLinks();
1303                 }
1304
1305                 // FIXME: Is using Language::pipeList impossible here? Do not quite understand the use of the newline
1306                 return implode( $s, wfMsgExt( 'pipe-separator', 'escapenoentities' ) . "\n" );
1307         }
1308
1309         /**
1310          * Compatibility for extensions adding functionality through tabs.
1311          * Eventually these old skins should be replaced with SkinTemplate-based
1312          * versions, sigh...
1313          * @return string
1314          */
1315         function extensionTabLinks() {
1316                 $tabs = array();
1317                 $out = '';
1318                 $s = array();
1319                 wfRunHooks( 'SkinTemplateTabs', array( $this, &$tabs ) );
1320                 foreach( $tabs as $tab ) {
1321                         $s[] = Xml::element( 'a',
1322                                 array( 'href' => $tab['href'] ),
1323                                 $tab['text'] );
1324                 }
1325
1326                 if( count( $s ) ) {
1327                         global $wgLang;
1328
1329                         $out = wfMsgExt( 'pipe-separator' , 'escapenoentities' );
1330                         $out .= $wgLang->pipeList( $s );
1331                 }
1332
1333                 return $out;
1334         }
1335
1336         /**
1337          * Language/charset variant links for classic-style skins
1338          * @return string
1339          */
1340         function variantLinks() {
1341                 $s = '';
1342                 /* show links to different language variants */
1343                 global $wgDisableLangConversion, $wgLang, $wgContLang;
1344                 $variants = $wgContLang->getVariants();
1345                 if( !$wgDisableLangConversion && sizeof( $variants ) > 1 ) {
1346                         foreach( $variants as $code ) {
1347                                 $varname = $wgContLang->getVariantname( $code );
1348                                 if( $varname == 'disable' )
1349                                         continue;
1350                                 $s = $wgLang->pipeList( array(
1351                                         $s,
1352                                         '<a href="' . $this->mTitle->escapeLocalUrl( 'variant=' . $code ) . '">' . htmlspecialchars( $varname ) . '</a>'
1353                                 ) );
1354                         }
1355                 }
1356                 return $s;
1357         }
1358
1359         function bottomLinks() {
1360                 global $wgOut, $wgUser, $wgUseTrackbacks;
1361                 $sep = wfMsgExt( 'pipe-separator', 'escapenoentities' ) . "\n";
1362
1363                 $s = '';
1364                 if ( $wgOut->isArticleRelated() ) {
1365                         $element[] = '<strong>' . $this->editThisPage() . '</strong>';
1366                         if ( $wgUser->isLoggedIn() ) {
1367                                 $element[] = $this->watchThisPage();
1368                         }
1369                         $element[] = $this->talkLink();
1370                         $element[] = $this->historyLink();
1371                         $element[] = $this->whatLinksHere();
1372                         $element[] = $this->watchPageLinksLink();
1373
1374                         if( $wgUseTrackbacks )
1375                                 $element[] = $this->trackbackLink();
1376
1377                         if ( $this->mTitle->getNamespace() == NS_USER
1378                             || $this->mTitle->getNamespace() == NS_USER_TALK ){
1379                                 $id = User::idFromName( $this->mTitle->getText() );
1380                                 $ip = User::isIP( $this->mTitle->getText() );
1381
1382                                 if( $id || $ip ) { # both anons and non-anons have contri list
1383                                         $element[] = $this->userContribsLink();
1384                                 }
1385                                 if( $this->showEmailUser( $id ) ) {
1386                                         $element[] = $this->emailUserLink();
1387                                 }
1388                         }
1389
1390                         $s = implode( $element, $sep );
1391
1392                         if ( $this->mTitle->getArticleId() ) {
1393                                 $s .= "\n<br />";
1394                                 if( $wgUser->isAllowed( 'delete' ) ) { $s .= $this->deleteThisPage(); }
1395                                 if( $wgUser->isAllowed( 'protect' ) ) { $s .= $sep . $this->protectThisPage(); }
1396                                 if( $wgUser->isAllowed( 'move' ) ) { $s .= $sep . $this->moveThisPage(); }
1397                         }
1398                         $s .= "<br />\n" . $this->otherLanguages();
1399                 }
1400
1401                 return $s;
1402         }
1403
1404         function pageStats() {
1405                 global $wgOut, $wgLang, $wgArticle, $wgRequest, $wgUser;
1406                 global $wgDisableCounters, $wgMaxCredits, $wgShowCreditsIfMax, $wgPageShowWatchingUsers;
1407
1408                 $oldid = $wgRequest->getVal( 'oldid' );
1409                 $diff = $wgRequest->getVal( 'diff' );
1410                 if ( ! $wgOut->isArticle() ) { return ''; }
1411                 if( !$wgArticle instanceOf Article ) { return ''; }
1412                 if ( isset( $oldid ) || isset( $diff ) ) { return ''; }
1413                 if ( 0 == $wgArticle->getID() ) { return ''; }
1414
1415                 $s = '';
1416                 if ( !$wgDisableCounters ) {
1417                         $count = $wgLang->formatNum( $wgArticle->getCount() );
1418                         if ( $count ) {
1419                                 $s = wfMsgExt( 'viewcount', array( 'parseinline' ), $count );
1420                         }
1421                 }
1422
1423                 if( $wgMaxCredits != 0 ){
1424                         $s .= ' ' . Credits::getCredits( $wgArticle, $wgMaxCredits, $wgShowCreditsIfMax );
1425                 } else {
1426                         $s .= $this->lastModified();
1427                 }
1428
1429                 if( $wgPageShowWatchingUsers && $wgUser->getOption( 'shownumberswatching' ) ) {
1430                         $dbr = wfGetDB( DB_SLAVE );
1431                         $res = $dbr->select( 'watchlist',
1432                                 array( 'COUNT(*) AS n' ),
1433                                 array( 'wl_title' => $dbr->strencode( $this->mTitle->getDBkey() ), 'wl_namespace' => $this->mTitle->getNamespace() ),
1434                                 __METHOD__
1435                         );
1436                         $x = $dbr->fetchObject( $res );
1437
1438                         $s .= ' ' . wfMsgExt( 'number_of_watching_users_pageview',
1439                                 array( 'parseinline' ), $wgLang->formatNum( $x->n )
1440                         );
1441                 }
1442
1443                 return $s . ' ' .  $this->getCopyright();
1444         }
1445
1446         function getCopyright( $type = 'detect' ) {
1447                 global $wgRightsPage, $wgRightsUrl, $wgRightsText, $wgRequest, $wgArticle;
1448
1449                 if ( $type == 'detect' ) {
1450                         $diff = $wgRequest->getVal( 'diff' );
1451                         $isCur = $wgArticle && $wgArticle->isCurrent();
1452                         if ( is_null( $diff ) && !$isCur && wfMsgForContent( 'history_copyright' ) !== '-' ) {
1453                                 $type = 'history';
1454                         } else {
1455                                 $type = 'normal';
1456                         }
1457                 }
1458
1459                 if ( $type == 'history' ) {
1460                         $msg = 'history_copyright';
1461                 } else {
1462                         $msg = 'copyright';
1463                 }
1464
1465                 $out = '';
1466                 if( $wgRightsPage ) {
1467                         $title = Title::newFromText( $wgRightsPage );
1468                         $link = $this->linkKnown( $title, $wgRightsText );
1469                 } elseif( $wgRightsUrl ) {
1470                         $link = $this->makeExternalLink( $wgRightsUrl, $wgRightsText );
1471                 } elseif( $wgRightsText ) {
1472                         $link = $wgRightsText;
1473                 } else {
1474                         # Give up now
1475                         return $out;
1476                 }
1477                 // Allow for site and per-namespace customization of copyright notice.
1478                 if( isset($wgArticle) )
1479                         wfRunHooks( 'SkinCopyrightFooter', array( $wgArticle->getTitle(), $type, &$msg, &$link ) );
1480
1481                 $out .= wfMsgForContent( $msg, $link );
1482                 return $out;
1483         }
1484
1485         function getCopyrightIcon() {
1486                 global $wgRightsUrl, $wgRightsText, $wgRightsIcon, $wgCopyrightIcon;
1487                 $out = '';
1488                 if ( isset( $wgCopyrightIcon ) && $wgCopyrightIcon ) {
1489                         $out = $wgCopyrightIcon;
1490                 } else if ( $wgRightsIcon ) {
1491                         $icon = htmlspecialchars( $wgRightsIcon );
1492                         if ( $wgRightsUrl ) {
1493                                 $url = htmlspecialchars( $wgRightsUrl );
1494                                 $out .= '<a href="'.$url.'">';
1495                         }
1496                         $text = htmlspecialchars( $wgRightsText );
1497                         $out .= "<img src=\"$icon\" alt=\"$text\" width=\"88\" height=\"31\" />";
1498                         if ( $wgRightsUrl ) {
1499                                 $out .= '</a>';
1500                         }
1501                 }
1502                 return $out;
1503         }
1504
1505         function getPoweredBy() {
1506                 global $wgStylePath;
1507                 $url = htmlspecialchars( "$wgStylePath/common/images/poweredby_mediawiki_88x31.png" );
1508                 $img = '<a href="http://www.mediawiki.org/"><img src="'.$url.'" height="31" width="88" alt="Powered by MediaWiki" /></a>';
1509                 return $img;
1510         }
1511
1512         function lastModified() {
1513                 global $wgLang, $wgArticle;
1514                 if( $this->mRevisionId && $this->mRevisionId != $wgArticle->getLatest()) {
1515                         $timestamp = Revision::getTimestampFromId( $wgArticle->getTitle(), $this->mRevisionId );
1516                 } else {
1517                         $timestamp = $wgArticle->getTimestamp();
1518                 }
1519                 if ( $timestamp ) {
1520                         $d = $wgLang->date( $timestamp, true );
1521                         $t = $wgLang->time( $timestamp, true );
1522                         $s = ' ' . wfMsg( 'lastmodifiedat', $d, $t );
1523                 } else {
1524                         $s = '';
1525                 }
1526                 if ( wfGetLB()->getLaggedSlaveMode() ) {
1527                         $s .= ' <strong>' . wfMsg( 'laggedslavemode' ) . '</strong>';
1528                 }
1529                 return $s;
1530         }
1531
1532         function logoText( $align = '' ) {
1533                 if ( '' != $align ) {
1534                         $a = " align='{$align}'";
1535                 } else {
1536                         $a = '';
1537                 }
1538
1539                 $mp = wfMsg( 'mainpage' );
1540                 $mptitle = Title::newMainPage();
1541                 $url = ( is_object( $mptitle ) ? $mptitle->escapeLocalURL() : '' );
1542
1543                 $logourl = $this->getLogo();
1544                 $s = "<a href='{$url}'><img{$a} src='{$logourl}' alt='[{$mp}]' /></a>";
1545                 return $s;
1546         }
1547
1548         /**
1549          * show a drop-down box of special pages
1550          */
1551         function specialPagesList() {
1552                 global $wgUser, $wgContLang, $wgServer, $wgRedirectScript;
1553                 $pages = array_merge( SpecialPage::getRegularPages(), SpecialPage::getRestrictedPages() );
1554                 foreach ( $pages as $name => $page ) {
1555                         $pages[$name] = $page->getDescription();
1556                 }
1557
1558                 $go = wfMsg( 'go' );
1559                 $sp = wfMsg( 'specialpages' );
1560                 $spp = $wgContLang->specialPage( 'Specialpages' );
1561
1562                 $s = '<form id="specialpages" method="get" ' .
1563                   'action="' . htmlspecialchars( "{$wgServer}{$wgRedirectScript}" ) . "\">\n";
1564                 $s .= "<select name=\"wpDropdown\">\n";
1565                 $s .= "<option value=\"{$spp}\">{$sp}</option>\n";
1566
1567
1568                 foreach ( $pages as $name => $desc ) {
1569                         $p = $wgContLang->specialPage( $name );
1570                         $s .= "<option value=\"{$p}\">{$desc}</option>\n";
1571                 }
1572                 $s .= "</select>\n";
1573                 $s .= "<input type='submit' value=\"{$go}\" name='redirect' />\n";
1574                 $s .= "</form>\n";
1575                 return $s;
1576         }
1577
1578         function mainPageLink() {
1579                 $s = $this->link(
1580                         Title::newMainPage(),
1581                         wfMsg( 'mainpage' ),
1582                         array(),
1583                         array(),
1584                         array( 'known', 'noclasses' )
1585                 );
1586                 return $s;
1587         }
1588
1589         private function footerLink ( $desc, $page ) {
1590                 // if the link description has been set to "-" in the default language,
1591                 if ( wfMsgForContent( $desc )  == '-') {
1592                         // then it is disabled, for all languages.
1593                         return '';
1594                 } else {
1595                         // Otherwise, we display the link for the user, described in their
1596                         // language (which may or may not be the same as the default language),
1597                         // but we make the link target be the one site-wide page.
1598                         $title = Title::newFromText( wfMsgForContent( $page ) );
1599                         return $this->linkKnown(
1600                                 $title,
1601                                 wfMsgExt( $desc, array( 'parsemag', 'escapenoentities' ) )
1602                         );
1603                 }
1604         }
1605
1606         function privacyLink() {
1607                 return $this->footerLink( 'privacy', 'privacypage' );
1608         }
1609
1610         function aboutLink() {
1611                 return $this->footerLink( 'aboutsite', 'aboutpage' );
1612         }
1613
1614         function disclaimerLink() {
1615                 return $this->footerLink( 'disclaimers', 'disclaimerpage' );
1616         }
1617
1618         function editThisPage() {
1619                 global $wgOut;
1620
1621                 if ( !$wgOut->isArticleRelated() ) {
1622                         $s = wfMsg( 'protectedpage' );
1623                 } else {
1624                         if( $this->mTitle->quickUserCan( 'edit' ) && $this->mTitle->exists() ) {
1625                                 $t = wfMsg( 'editthispage' );
1626                         } elseif( $this->mTitle->quickUserCan( 'create' ) && !$this->mTitle->exists() ) {
1627                                 $t = wfMsg( 'create-this-page' );
1628                         } else {
1629                                 $t = wfMsg( 'viewsource' );
1630                         }
1631
1632                         $s = $this->link(
1633                                 $this->mTitle,
1634                                 $t,
1635                                 array(),
1636                                 $this->editUrlOptions(),
1637                                 array( 'known', 'noclasses' )
1638                         );
1639                 }
1640                 return $s;
1641         }
1642
1643         /**
1644          * Return URL options for the 'edit page' link.
1645          * This may include an 'oldid' specifier, if the current page view is such.
1646          *
1647          * @return array
1648          * @private
1649          */
1650         function editUrlOptions() {
1651                 global $wgArticle;
1652
1653                 $options = array( 'action' => 'edit' );
1654
1655                 if( $this->mRevisionId && ! $wgArticle->isCurrent() ) {
1656                         $options['oldid'] = intval( $this->mRevisionId );
1657                 }
1658
1659                 return $options;
1660         }
1661
1662         function deleteThisPage() {
1663                 global $wgUser, $wgRequest;
1664
1665                 $diff = $wgRequest->getVal( 'diff' );
1666                 if ( $this->mTitle->getArticleId() && ( !$diff ) && $wgUser->isAllowed( 'delete' ) ) {
1667                         $t = wfMsg( 'deletethispage' );
1668
1669                         $s = $this->link(
1670                                 $this->mTitle,
1671                                 $t,
1672                                 array(),
1673                                 array( 'action' => 'delete' ),
1674                                 array( 'known', 'noclasses' )
1675                         );
1676                 } else {
1677                         $s = '';
1678                 }
1679                 return $s;
1680         }
1681
1682         function protectThisPage() {
1683                 global $wgUser, $wgRequest;
1684
1685                 $diff = $wgRequest->getVal( 'diff' );
1686                 if ( $this->mTitle->getArticleId() && ( ! $diff ) && $wgUser->isAllowed('protect') ) {
1687                         if ( $this->mTitle->isProtected() ) {
1688                                 $text = wfMsg( 'unprotectthispage' );
1689                                 $query = array( 'action' => 'unprotect' );
1690                         } else {
1691                                 $text = wfMsg( 'protectthispage' );
1692                                 $query = array( 'action' => 'protect' );
1693                         }
1694
1695                         $s = $this->link(
1696                                 $this->mTitle,
1697                                 $text,
1698                                 array(),
1699                                 $query,
1700                                 array( 'known', 'noclasses' )
1701                         );
1702                 } else {
1703                         $s = '';
1704                 }
1705                 return $s;
1706         }
1707
1708         function watchThisPage() {
1709                 global $wgOut;
1710                 ++$this->mWatchLinkNum;
1711
1712                 if ( $wgOut->isArticleRelated() ) {
1713                         if ( $this->mTitle->userIsWatching() ) {
1714                                 $text = wfMsg( 'unwatchthispage' );
1715                                 $query = array( 'action' => 'unwatch' );
1716                                 $id = 'mw-unwatch-link' . $this->mWatchLinkNum;
1717                         } else {
1718                                 $text = wfMsg( 'watchthispage' );
1719                                 $query = array( 'action' => 'watch' );
1720                                 $id = 'mw-watch-link' . $this->mWatchLinkNum;
1721                         }
1722
1723                         $s = $this->link(
1724                                 $this->mTitle,
1725                                 $text,
1726                                 array( 'id' => $id ),
1727                                 $query,
1728                                 array( 'known', 'noclasses' )
1729                         );
1730                 } else {
1731                         $s = wfMsg( 'notanarticle' );
1732                 }
1733                 return $s;
1734         }
1735
1736         function moveThisPage() {
1737                 if ( $this->mTitle->quickUserCan( 'move' ) ) {
1738                         return $this->link(
1739                                 SpecialPage::getTitleFor( 'Movepage' ),
1740                                 wfMsg( 'movethispage' ),
1741                                 array(),
1742                                 array( 'target' => $this->mTitle->getPrefixedDBkey() ),
1743                                 array( 'known', 'noclasses' )
1744                         );
1745                 } else {
1746                         // no message if page is protected - would be redundant
1747                         return '';
1748                 }
1749         }
1750
1751         function historyLink() {
1752                 return $this->link(
1753                         $this->mTitle,
1754                         wfMsgHtml( 'history' ),
1755                         array( 'rel' => 'archives' ),
1756                         array( 'action' => 'history' )
1757                 );
1758         }
1759
1760         function whatLinksHere() {
1761                 return $this->link(
1762                         SpecialPage::getTitleFor( 'Whatlinkshere', $this->mTitle->getPrefixedDBkey() ),
1763                         wfMsgHtml( 'whatlinkshere' ),
1764                         array(),
1765                         array(),
1766                         array( 'known', 'noclasses' )
1767                 );
1768         }
1769
1770         function userContribsLink() {
1771                 return $this->link(
1772                         SpecialPage::getTitleFor( 'Contributions', $this->mTitle->getDBkey() ),
1773                         wfMsgHtml( 'contributions' ),
1774                         array(),
1775                         array(),
1776                         array( 'known', 'noclasses' )
1777                 );
1778         }
1779
1780         function showEmailUser( $id ) {
1781                 global $wgUser;
1782                 $targetUser = User::newFromId( $id );
1783                 return  $wgUser->canSendEmail() && # the sending user must have a confirmed email address
1784                         $targetUser->canReceiveEmail(); # the target user must have a confirmed email address and allow emails from users
1785         }
1786
1787         function emailUserLink() {
1788                 return $this->link(
1789                         SpecialPage::getTitleFor( 'Emailuser', $this->mTitle->getDBkey() ),
1790                         wfMsg( 'emailuser' ),
1791                         array(),
1792                         array(),
1793                         array( 'known', 'noclasses' )
1794                 );
1795         }
1796
1797         function watchPageLinksLink() {
1798                 global $wgOut;
1799                 if ( ! $wgOut->isArticleRelated() ) {
1800                         return '(' . wfMsg( 'notanarticle' ) . ')';
1801                 } else {
1802                         return $this->link(
1803                                 SpecialPage::getTitleFor( 'Recentchangeslinked', $this->mTitle->getPrefixedDBkey() ),
1804                                 wfMsg( 'recentchangeslinked-toolbox' ),
1805                                 array(),
1806                                 array(),
1807                                 array( 'known', 'noclasses' )
1808                         );
1809                 }
1810         }
1811
1812         function trackbackLink() {
1813                 return '<a href="' . $this->mTitle->trackbackURL() . '">'
1814                         . wfMsg( 'trackbacklink' ) . '</a>';
1815         }
1816
1817         function otherLanguages() {
1818                 global $wgOut, $wgContLang, $wgHideInterlanguageLinks;
1819
1820                 if ( $wgHideInterlanguageLinks ) {
1821                         return '';
1822                 }
1823
1824                 $a = $wgOut->getLanguageLinks();
1825                 if ( 0 == count( $a ) ) {
1826                         return '';
1827                 }
1828
1829                 $s = wfMsg( 'otherlanguages' ) . wfMsg( 'colon-separator' );
1830                 $first = true;
1831                 if( $wgContLang->isRTL() ) $s .= '<span dir="LTR">';
1832                 foreach( $a as $l ) {
1833                         if ( !$first ) {
1834                                 $s .= wfMsgExt( 'pipe-separator', 'escapenoentities' );
1835                         }
1836                         $first = false;
1837
1838                         $nt = Title::newFromText( $l );
1839                         $url = $nt->escapeFullURL();
1840                         $text = $wgContLang->getLanguageName( $nt->getInterwiki() );
1841
1842                         if ( '' == $text ) { $text = $l; }
1843                         $style = $this->getExternalLinkAttributes();
1844                         $s .= "<a href=\"{$url}\"{$style}>{$text}</a>";
1845                 }
1846                 if( $wgContLang->isRTL() ) $s .= '</span>';
1847                 return $s;
1848         }
1849
1850         function talkLink() {
1851                 if ( NS_SPECIAL == $this->mTitle->getNamespace() ) {
1852                         # No discussion links for special pages
1853                         return '';
1854                 }
1855
1856                 $linkOptions = array();
1857
1858                 if( $this->mTitle->isTalkPage() ) {
1859                         $link = $this->mTitle->getSubjectPage();
1860                         switch( $link->getNamespace() ) {
1861                                 case NS_MAIN:
1862                                         $text = wfMsg( 'articlepage' );
1863                                         break;
1864                                 case NS_USER:
1865                                         $text = wfMsg( 'userpage' );
1866                                         break;
1867                                 case NS_PROJECT:
1868                                         $text = wfMsg( 'projectpage' );
1869                                         break;
1870                                 case NS_FILE:
1871                                         $text = wfMsg( 'imagepage' );
1872                                         # Make link known if image exists, even if the desc. page doesn't.
1873                                         if( wfFindFile( $link ) )
1874                                                 $linkOptions[] = 'known';
1875                                         break;
1876                                 case NS_MEDIAWIKI:
1877                                         $text = wfMsg( 'mediawikipage' );
1878                                         break;
1879                                 case NS_TEMPLATE:
1880                                         $text = wfMsg( 'templatepage' );
1881                                         break;
1882                                 case NS_HELP:
1883                                         $text = wfMsg( 'viewhelppage' );
1884                                         break;
1885                                 case NS_CATEGORY:
1886                                         $text = wfMsg( 'categorypage' );
1887                                         break;
1888                                 default:
1889                                         $text = wfMsg( 'articlepage' );
1890                         }
1891                 } else {
1892                         $link = $this->mTitle->getTalkPage();
1893                         $text = wfMsg( 'talkpage' );
1894                 }
1895
1896                 $s = $this->link( $link, $text, array(), array(), $linkOptions );
1897
1898                 return $s;
1899         }
1900
1901         function commentLink() {
1902                 global $wgOut;
1903
1904                 if ( $this->mTitle->getNamespace() == NS_SPECIAL ) {
1905                         return '';
1906                 }
1907
1908                 # __NEWSECTIONLINK___ changes behaviour here
1909                 # If it is present, the link points to this page, otherwise
1910                 # it points to the talk page
1911                 if( $this->mTitle->isTalkPage() ) {
1912                         $title = $this->mTitle;
1913                 } elseif( $wgOut->showNewSectionLink() ) {
1914                         $title = $this->mTitle;
1915                 } else {
1916                         $title = $this->mTitle->getTalkPage();
1917                 }
1918
1919                 return $this->link(
1920                         $title,
1921                         wfMsg( 'postcomment' ),
1922                         array(),
1923                         array(
1924                                 'action' => 'edit',
1925                                 'section' => 'new'
1926                         ),
1927                         array( 'known', 'noclasses' )
1928                 );
1929         }
1930
1931         /* these are used extensively in SkinTemplate, but also some other places */
1932         static function makeMainPageUrl( $urlaction = '' ) {
1933                 $title = Title::newMainPage();
1934                 self::checkTitle( $title, '' );
1935                 return $title->getLocalURL( $urlaction );
1936         }
1937
1938         static function makeSpecialUrl( $name, $urlaction = '' ) {
1939                 $title = SpecialPage::getTitleFor( $name );
1940                 return $title->getLocalURL( $urlaction );
1941         }
1942
1943         static function makeSpecialUrlSubpage( $name, $subpage, $urlaction = '' ) {
1944                 $title = SpecialPage::getSafeTitleFor( $name, $subpage );
1945                 return $title->getLocalURL( $urlaction );
1946         }
1947
1948         static function makeI18nUrl( $name, $urlaction = '' ) {
1949                 $title = Title::newFromText( wfMsgForContent( $name ) );
1950                 self::checkTitle( $title, $name );
1951                 return $title->getLocalURL( $urlaction );
1952         }
1953
1954         static function makeUrl( $name, $urlaction = '' ) {
1955                 $title = Title::newFromText( $name );
1956                 self::checkTitle( $title, $name );
1957                 return $title->getLocalURL( $urlaction );
1958         }
1959
1960         # If url string starts with http, consider as external URL, else
1961         # internal
1962         static function makeInternalOrExternalUrl( $name ) {
1963                 if ( preg_match( '/^(?:' . wfUrlProtocols() . ')/', $name ) ) {
1964                         return $name;
1965                 } else {
1966                         return self::makeUrl( $name );
1967                 }
1968         }
1969
1970         # this can be passed the NS number as defined in Language.php
1971         static function makeNSUrl( $name, $urlaction = '', $namespace = NS_MAIN ) {
1972                 $title = Title::makeTitleSafe( $namespace, $name );
1973                 self::checkTitle( $title, $name );
1974                 return $title->getLocalURL( $urlaction );
1975         }
1976
1977         /* these return an array with the 'href' and boolean 'exists' */
1978         static function makeUrlDetails( $name, $urlaction = '' ) {
1979                 $title = Title::newFromText( $name );
1980                 self::checkTitle( $title, $name );
1981                 return array(
1982                         'href' => $title->getLocalURL( $urlaction ),
1983                         'exists' => $title->getArticleID() != 0 ? true : false
1984                 );
1985         }
1986
1987         /**
1988          * Make URL details where the article exists (or at least it's convenient to think so)
1989          */
1990         static function makeKnownUrlDetails( $name, $urlaction = '' ) {
1991                 $title = Title::newFromText( $name );
1992                 self::checkTitle( $title, $name );
1993                 return array(
1994                         'href' => $title->getLocalURL( $urlaction ),
1995                         'exists' => true
1996                 );
1997         }
1998
1999         # make sure we have some title to operate on
2000         static function checkTitle( &$title, $name ) {
2001                 if( !is_object( $title ) ) {
2002                         $title = Title::newFromText( $name );
2003                         if( !is_object( $title ) ) {
2004                                 $title = Title::newFromText( '--error: link target missing--' );
2005                         }
2006                 }
2007         }
2008
2009         /**
2010          * Build an array that represents the sidebar(s), the navigation bar among them
2011          *
2012          * @return array
2013          */
2014         function buildSidebar() {
2015                 global $parserMemc, $wgEnableSidebarCache, $wgSidebarCacheExpiry;
2016                 global $wgLang;
2017                 wfProfileIn( __METHOD__ );
2018
2019                 $key = wfMemcKey( 'sidebar', $wgLang->getCode() );
2020
2021                 if ( $wgEnableSidebarCache ) {
2022                         $cachedsidebar = $parserMemc->get( $key );
2023                         if ( $cachedsidebar ) {
2024                                 wfProfileOut( __METHOD__ );
2025                                 return $cachedsidebar;
2026                         }
2027                 }
2028
2029                 $bar = array();
2030                 $this->addToSidebar( $bar, 'sidebar' );
2031
2032                 wfRunHooks( 'SkinBuildSidebar', array( $this, &$bar ) );
2033                 if ( $wgEnableSidebarCache ) $parserMemc->set( $key, $bar, $wgSidebarCacheExpiry );
2034                 wfProfileOut( __METHOD__ );
2035                 return $bar;
2036         }
2037         /**
2038          * Add content from a sidebar system message
2039          * Currently only used for MediaWiki:Sidebar (but may be used by Extensions)
2040          *
2041          * @param &$bar array
2042          * @param $message String
2043          */
2044         function addToSidebar( &$bar, $message ) {
2045                 $lines = explode( "\n", wfMsgForContent( $message ) );
2046                 $heading = '';
2047                 foreach( $lines as $line ) {
2048                         if( strpos( $line, '*' ) !== 0 )
2049                                 continue;
2050                         if( strpos( $line, '**') !== 0 ) {
2051                                 $heading = trim( $line, '* ' );
2052                                 if( !array_key_exists( $heading, $bar ) ) $bar[$heading] = array();
2053                         } else {
2054                                 if( strpos( $line, '|' ) !== false ) { // sanity check
2055                                         $line = array_map( 'trim', explode( '|', trim( $line, '* ' ), 2 ) );
2056                                         $link = wfMsgForContent( $line[0] );
2057                                         if( $link == '-' )
2058                                                 continue;
2059
2060                                         $text = wfMsgExt( $line[1], 'parsemag' );
2061                                         if( wfEmptyMsg( $line[1], $text ) )
2062                                                 $text = $line[1];
2063                                         if( wfEmptyMsg( $line[0], $link ) )
2064                                                 $link = $line[0];
2065
2066                                         if ( preg_match( '/^(?:' . wfUrlProtocols() . ')/', $link ) ) {
2067                                                 $href = $link;
2068                                         } else {
2069                                                 $title = Title::newFromText( $link );
2070                                                 if ( $title ) {
2071                                                         $title = $title->fixSpecialName();
2072                                                         $href = $title->getLocalURL();
2073                                                 } else {
2074                                                         $href = 'INVALID-TITLE';
2075                                                 }
2076                                         }
2077
2078                                         $bar[$heading][] = array(
2079                                                 'text' => $text,
2080                                                 'href' => $href,
2081                                                 'id' => 'n-' . strtr( $line[1], ' ', '-' ),
2082                                                 'active' => false
2083                                         );
2084                                 } else { continue; }
2085                         }
2086                 }
2087         }
2088
2089         /**
2090          * Should we include common/wikiprintable.css?  Skins that have their own
2091          * print stylesheet should override this and return false.  (This is an
2092          * ugly hack to get Monobook to play nicely with
2093          * OutputPage::headElement().)
2094          *
2095          * @return bool
2096          */
2097         public function commonPrintStylesheet() {
2098                 return true;
2099         }
2100 }