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