includes/Skin.php

   1 <?php
   2 /**
   3  * @defgroup Skins Skins
   4  */
   5
   6 if ( !defined( 'MEDIAWIKI' ) ) {
   7         die( 1 );
   8 }
   9
  10 /**
  11  * The main skin class that provide methods and properties for all other skins.
  12  * This base class is also the "Standard" skin.
  13  *
  14  * See docs/skin.txt for more information.
  15  *
  16  * @ingroup Skins
  17  */
  18 class Skin extends Linker {
  19         /**#@+
  20          * @private
  21          */
  22         var $mWatchLinkNum = 0; // Appended to end of watch link id's
  23         // How many search boxes have we made?  Avoid duplicate id's.
  24         protected $searchboxes = '';
  25         /**#@-*/
  26         protected $mRevisionId; // The revision ID we're looking at, null if not applicable.
  27         protected $skinname = 'standard';
  28         // @todo Fixme: should be protected :-\
  29         var $mTitle = null;
  30
  31         /** Constructor, call parent constructor */
  32         function __construct() {
  33                 parent::__construct();
  34         }
  35
  36         /**
  37          * Fetch the set of available skins.
  38          * @return array of strings
  39          */
  40         static function getSkinNames() {
  41                 global $wgValidSkinNames;
  42                 static $skinsInitialised = false;
  43                 if ( !$skinsInitialised ) {
  44                         # Get a list of available skins
  45                         # Build using the regular expression '^(.*).php$'
  46                         # Array keys are all lower case, array value keep the case used by filename
  47                         #
  48                         wfProfileIn( __METHOD__ . '-init' );
  49                         global $wgStyleDirectory;
  50                         $skinDir = dir( $wgStyleDirectory );
  51
  52                         # while code from www.php.net
  53                         while( false !== ( $file = $skinDir->read() ) ) {
  54                                 // Skip non-PHP files, hidden files, and '.dep' includes
  55                                 $matches = array();
  56                                 if( preg_match( '/^([^.]*)\.php$/', $file, $matches ) ) {
  57                                         $aSkin = $matches[1];
  58                                         $wgValidSkinNames[strtolower( $aSkin )] = $aSkin;
  59                                 }
  60                         }
  61                         $skinDir->close();
  62                         $skinsInitialised = true;
  63                         wfProfileOut( __METHOD__ . '-init' );
  64                 }
  65                 return $wgValidSkinNames;
  66         }
  67
  68         /**
  69          * Fetch the list of usable skins in regards to $wgSkipSkins.
  70          * Useful for Special:Preferences and other places where you
  71          * only want to show skins users _can_ use.
  72          * @return array of strings
  73          */
  74         public static function getUsableSkins() {
  75                 global $wgSkipSkins;
  76                 $usableSkins = self::getSkinNames();
  77                 foreach ( $wgSkipSkins as $skip ) {
  78                         unset( $usableSkins[$skip] );
  79                 }
  80                 return $usableSkins;
  81         }
  82
  83         /**
  84          * Normalize a skin preference value to a form that can be loaded.
  85          * If a skin can't be found, it will fall back to the configured
  86          * default (or the old 'Classic' skin if that's broken).
  87          * @param $key String: 'monobook', 'standard', etc.
  88          * @return string
  89          */
  90         static function normalizeKey( $key ) {
  91                 global $wgDefaultSkin;
  92                 $skinNames = Skin::getSkinNames();
  93
  94                 if( $key == '' ) {
  95                         // Don't return the default immediately;
  96                         // in a misconfiguration we need to fall back.
  97                         $key = $wgDefaultSkin;
  98                 }
  99
 100                 if( isset( $skinNames[$key] ) ) {
 101                         return $key;
 102                 }
 103
 104                 // Older versions of the software used a numeric setting
 105                 // in the user preferences.
 106                 $fallback = array(
 107                         0 => $wgDefaultSkin,
 108                         1 => 'nostalgia',
 109                         2 => 'cologneblue'
 110                 );
 111
 112                 if( isset( $fallback[$key] ) ) {
 113                         $key = $fallback[$key];
 114                 }
 115
 116                 if( isset( $skinNames[$key] ) ) {
 117                         return $key;
 118                 } else {
 119                         return 'monobook';
 120                 }
 121         }
 122
 123         /**
 124          * Factory method for loading a skin of a given type
 125          * @param $key String: 'monobook', 'standard', etc.
 126          * @return Skin
 127          */
 128         static function &newFromKey( $key ) {
 129                 global $wgStyleDirectory;
 130
 131                 $key = Skin::normalizeKey( $key );
 132
 133                 $skinNames = Skin::getSkinNames();
 134                 $skinName = $skinNames[$key];
 135                 $className = 'Skin' . ucfirst( $key );
 136
 137                 # Grab the skin class and initialise it.
 138                 if ( !class_exists( $className ) ) {
 139                         // Preload base classes to work around APC/PHP5 bug
 140                         $deps = "{$wgStyleDirectory}/{$skinName}.deps.php";
 141                         if( file_exists( $deps ) ) {
 142                                 include_once( $deps );
 143                         }
 144                         require_once( "{$wgStyleDirectory}/{$skinName}.php" );
 145
 146                         # Check if we got if not failback to default skin
 147                         if( !class_exists( $className ) ) {
 148                                 # DO NOT die if the class isn't found. This breaks maintenance
 149                                 # scripts and can cause a user account to be unrecoverable
 150                                 # except by SQL manipulation if a previously valid skin name
 151                                 # is no longer valid.
 152                                 wfDebug( "Skin class does not exist: $className\n" );
 153                                 $className = 'SkinMonobook';
 154                                 require_once( "{$wgStyleDirectory}/MonoBook.php" );
 155                         }
 156                 }
 157                 $skin = new $className;
 158                 return $skin;
 159         }
 160
 161         /** @return string path to the skin stylesheet */
 162         function getStylesheet() {
 163                 return 'common/wikistandard.css';
 164         }
 165
 166         /** @return string skin name */
 167         public function getSkinName() {
 168                 return $this->skinname;
 169         }
 170
 171         function qbSetting() {
 172                 global $wgOut, $wgUser;
 173
 174                 if ( $wgOut->isQuickbarSuppressed() ) {
 175                         return 0;
 176                 }
 177                 $q = $wgUser->getOption( 'quickbar', 0 );
 178                 return $q;
 179         }
 180
 181         function initPage( OutputPage $out ) {
 182                 global $wgFavicon, $wgAppleTouchIcon;
 183
 184                 wfProfileIn( __METHOD__ );
 185
 186                 # Generally the order of the favicon and apple-touch-icon links
 187                 # should not matter, but Konqueror (3.5.9 at least) incorrectly
 188                 # uses whichever one appears later in the HTML source. Make sure
 189                 # apple-touch-icon is specified first to avoid this.
 190                 if( false !== $wgAppleTouchIcon ) {
 191                         $out->addLink( array( 'rel' => 'apple-touch-icon', 'href' => $wgAppleTouchIcon ) );
 192                 }
 193
 194                 if( false !== $wgFavicon ) {
 195                         $out->addLink( array( 'rel' => 'shortcut icon', 'href' => $wgFavicon ) );
 196                 }
 197
 198                 # OpenSearch description link
 199                 $out->addLink( array(
 200                         'rel' => 'search',
 201                         'type' => 'application/opensearchdescription+xml',
 202                         'href' => wfScript( 'opensearch_desc' ),
 203                         'title' => wfMsgForContent( 'opensearch-desc' ),
 204                 ));
 205
 206                 $this->addMetadataLinks( $out );
 207
 208                 $this->mRevisionId = $out->mRevisionId;
 209
 210                 $this->preloadExistence();
 211
 212                 wfProfileOut( __METHOD__ );
 213         }
 214
 215         /**
 216          * Preload the existence of three commonly-requested pages in a single query
 217          */
 218         function preloadExistence() {
 219                 global $wgUser;
 220
 221                 // User/talk link
 222                 $titles = array( $wgUser->getUserPage(), $wgUser->getTalkPage() );
 223
 224                 // Other tab link
 225                 if ( $this->mTitle->getNamespace() == NS_SPECIAL ) {
 226                         // nothing
 227                 } elseif ( $this->mTitle->isTalkPage() ) {
 228                         $titles[] = $this->mTitle->getSubjectPage();
 229                 } else {
 230                         $titles[] = $this->mTitle->getTalkPage();
 231                 }
 232
 233                 $lb = new LinkBatch( $titles );
 234                 $lb->execute();
 235         }
 236
 237         /**
 238          * Adds metadata links (Creative Commons/Dublin Core/copyright) to the HTML
 239          * output.
 240          * @param $out Object: instance of OutputPage
 241          */
 242         function addMetadataLinks( OutputPage $out ) {
 243                 global $wgEnableDublinCoreRdf, $wgEnableCreativeCommonsRdf;
 244                 global $wgRightsPage, $wgRightsUrl;
 245
 246                 if( $out->isArticleRelated() ) {
 247                         # note: buggy CC software only reads first "meta" link
 248                         if( $wgEnableCreativeCommonsRdf ) {
 249                                 $out->addMetadataLink( array(
 250                                         'title' => 'Creative Commons',
 251                                         'type' => 'application/rdf+xml',
 252                                         'href' => $this->mTitle->getLocalURL( 'action=creativecommons' ) )
 253                                 );
 254                         }
 255                         if( $wgEnableDublinCoreRdf ) {
 256                                 $out->addMetadataLink( array(
 257                                         'title' => 'Dublin Core',
 258                                         'type' => 'application/rdf+xml',
 259                                         'href' => $this->mTitle->getLocalURL( 'action=dublincore' ) )
 260                                 );
 261                         }
 262                 }
 263                 $copyright = '';
 264                 if( $wgRightsPage ) {
 265                         $copy = Title::newFromText( $wgRightsPage );
 266                         if( $copy ) {
 267                                 $copyright = $copy->getLocalURL();
 268                         }
 269                 }
 270                 if( !$copyright && $wgRightsUrl ) {
 271                         $copyright = $wgRightsUrl;
 272                 }
 273                 if( $copyright ) {
 274                         $out->addLink( array(
 275                                 'rel' => 'copyright',
 276                                 'href' => $copyright )
 277                         );
 278                 }
 279         }
 280
 281         /**
 282          * Set some local variables
 283          */
 284         protected function setMembers() {
 285                 global $wgUser;
 286                 $this->mUser = $wgUser;
 287                 $this->userpage = $wgUser->getUserPage()->getPrefixedText();
 288                 $this->usercss = false;
 289         }
 290
 291         /**
 292          * Set the title
 293          * @param $t Title object to use
 294          */
 295         public function setTitle( $t ) {
 296                 $this->mTitle = $t;
 297         }
 298
 299         /** Get the title */
 300         public function getTitle() {
 301                 return $this->mTitle;
 302         }
 303
 304         /**
 305          * Outputs the HTML generated by other functions.
 306          * @param $out Object: instance of OutputPage
 307          */
 308         function outputPage( OutputPage $out ) {
 309                 global $wgDebugComments;
 310                 wfProfileIn( __METHOD__ );
 311
 312                 $this->setMembers();
 313                 $this->initPage( $out );
 314
 315                 // See self::afterContentHook() for documentation
 316                 $afterContent = $this->afterContentHook();
 317
 318                 $out->out( $out->headElement( $this ) );
 319
 320                 if ( $wgDebugComments ) {
 321                         $out->out( "<!-- Wiki debugging output:\n" .
 322                           $out->mDebugtext . "-->\n" );
 323                 }
 324
 325                 $out->out( $this->beforeContent() );
 326
 327                 $out->out( $out->mBodytext . "\n" );
 328
 329                 $out->out( $this->afterContent() );
 330
 331                 $out->out( $afterContent );
 332
 333                 $out->out( $this->bottomScripts() );
 334
 335                 $out->out( wfReportTime() );
 336
 337                 $out->out( "\n</body></html>" );
 338                 wfProfileOut( __METHOD__ );
 339         }
 340
 341         static function makeVariablesScript( $data ) {
 342                 if( $data ) {
 343                         $r = array();
 344                         foreach ( $data as $name => $value ) {
 345                                 $encValue = Xml::encodeJsVar( $value );
 346                                 $r[] = "$name=$encValue";
 347                         }
 348                         $js = 'var ' . implode( ",\n", $r ) . ';';
 349                         return Html::inlineScript( "\n$js\n" );
 350                 } else {
 351                         return '';
 352                 }
 353         }
 354
 355         /**
 356          * Make a <script> tag containing global variables
 357          * @param $skinName string Name of the skin
 358          * The odd calling convention is for backwards compatibility
 359          * @todo FIXME: Make this not depend on $wgTitle!
 360          */
 361         static function makeGlobalVariablesScript( $skinName ) {
 362                 if ( is_array( $skinName ) ) {
 363                         # Weird back-compat stuff.
 364                         $skinName = $skinName['skinname'];
 365                 }
 366                 global $wgScript, $wgTitle, $wgStylePath, $wgUser, $wgScriptExtension;
 367                 global $wgArticlePath, $wgScriptPath, $wgServer, $wgContLang, $wgLang;
 368                 global $wgOut, $wgArticle;
 369                 global $wgBreakFrames, $wgRequest, $wgVariantArticlePath, $wgActionPaths;
 370                 global $wgUseAjax, $wgAjaxWatch;
 371                 global $wgVersion, $wgEnableAPI, $wgEnableWriteAPI;
 372                 global $wgRestrictionTypes;
 373                 global $wgMWSuggestTemplate, $wgDBname, $wgEnableMWSuggest;
 374                 global $wgSitename;
 375
 376                 $ns = $wgTitle->getNamespace();
 377                 $nsname = MWNamespace::exists( $ns ) ? MWNamespace::getCanonicalName( $ns ) : $wgTitle->getNsText();
 378                 $separatorTransTable = $wgContLang->separatorTransformTable();
 379                 $separatorTransTable = $separatorTransTable ? $separatorTransTable : array();
 380                 $compactSeparatorTransTable = array(
 381                         implode( "\t", array_keys( $separatorTransTable ) ),
 382                         implode( "\t", $separatorTransTable ),
 383                 );
 384                 $digitTransTable = $wgContLang->digitTransformTable();
 385                 $digitTransTable = $digitTransTable ? $digitTransTable : array();
 386                 $compactDigitTransTable = array(
 387                         implode( "\t", array_keys( $digitTransTable ) ),
 388                         implode( "\t", $digitTransTable ),
 389                 );
 390
 391                 $mainPage = Title::newFromText( wfMsgForContent( 'mainpage' ) );
 392                 $vars = array(
 393                         'skin' => $skinName,
 394                         'stylepath' => $wgStylePath,
 395                         'wgUrlProtocols' => wfUrlProtocols(),
 396                         'wgArticlePath' => $wgArticlePath,
 397                         'wgScriptPath' => $wgScriptPath,
 398                         'wgScriptExtension' => $wgScriptExtension,
 399                         'wgScript' => $wgScript,
 400                         'wgVariantArticlePath' => $wgVariantArticlePath,
 401                         'wgActionPaths' => (object)$wgActionPaths,
 402                         'wgServer' => $wgServer,
 403                         'wgCanonicalNamespace' => $nsname,
 404                         'wgCanonicalSpecialPageName' => $ns == NS_SPECIAL ?
 405                                 SpecialPage::resolveAlias( $wgTitle->getDBkey() ) : false, # bug 21115
 406                         'wgNamespaceNumber' => $wgTitle->getNamespace(),
 407                         'wgPageName' => $wgTitle->getPrefixedDBKey(),
 408                         'wgTitle' => $wgTitle->getText(),
 409                         'wgAction' => $wgRequest->getText( 'action', 'view' ),
 410                         'wgArticleId' => $wgTitle->getArticleId(),
 411                         'wgIsArticle' => $wgOut->isArticle(),
 412                         'wgUserName' => $wgUser->isAnon() ? null : $wgUser->getName(),
 413                         'wgUserGroups' => $wgUser->getEffectiveGroups(),
 414                         'wgUserLanguage' => $wgLang->getCode(),
 415                         'wgContentLanguage' => $wgContLang->getCode(),
 416                         'wgBreakFrames' => $wgBreakFrames,
 417                         'wgCurRevisionId' => isset( $wgArticle ) ? $wgArticle->getLatest() : 0,
 418                         'wgVersion' => $wgVersion,
 419                         'wgEnableAPI' => $wgEnableAPI,
 420                         'wgEnableWriteAPI' => $wgEnableWriteAPI,
 421                         'wgSeparatorTransformTable' => $compactSeparatorTransTable,
 422                         'wgDigitTransformTable' => $compactDigitTransTable,
 423                         'wgMainPageTitle' => $mainPage ? $mainPage->getPrefixedText() : null,
 424                         'wgFormattedNamespaces' => $wgContLang->getFormattedNamespaces(),
 425                         'wgNamespaceIds' => $wgContLang->getNamespaceIds(),
 426                         'wgSiteName' => $wgSitename,
 427                         'wgCategories' => $wgOut->getCategories(),
 428                 );
 429                 if ( $wgContLang->hasVariants() ) {
 430                         $vars['wgUserVariant'] = $wgContLang->getPreferredVariant();
 431                 }
 432
 433                 // if on upload page output the extension list & js_upload
 434                 if( SpecialPage::resolveAlias( $wgTitle->getDBkey() ) == 'Upload' ) {
 435                         global $wgFileExtensions, $wgAjaxUploadInterface;
 436                         $vars['wgFileExtensions'] = $wgFileExtensions;
 437                 }
 438
 439                 if( $wgUseAjax && $wgEnableMWSuggest && !$wgUser->getOption( 'disablesuggest', false ) ) {
 440                         $vars['wgMWSuggestTemplate'] = SearchEngine::getMWSuggestTemplate();
 441                         $vars['wgDBname'] = $wgDBname;
 442                         $vars['wgSearchNamespaces'] = SearchEngine::userNamespaces( $wgUser );
 443                         $vars['wgMWSuggestMessages'] = array( wfMsg( 'search-mwsuggest-enabled' ), wfMsg( 'search-mwsuggest-disabled' ) );
 444                 }
 445
 446                 foreach( $wgRestrictionTypes as $type ) {
 447                         $vars['wgRestriction' . ucfirst( $type )] = $wgTitle->getRestrictions( $type );
 448                 }
 449
 450                 if ( $wgOut->isArticleRelated() && $wgUseAjax && $wgAjaxWatch && $wgUser->isLoggedIn() ) {
 451                         $msgs = (object)array();
 452                         foreach ( array( 'watch', 'unwatch', 'watching', 'unwatching',
 453                                 'tooltip-ca-watch', 'tooltip-ca-unwatch' ) as $msgName ) {
 454                                 $msgs->{$msgName . 'Msg'} = wfMsg( $msgName );
 455                         }
 456                         $vars['wgAjaxWatch'] = $msgs;
 457                 }
 458
 459                 // Allow extensions to add their custom variables to the global JS variables
 460                 wfRunHooks( 'MakeGlobalVariablesScript', array( &$vars ) );
 461
 462                 return self::makeVariablesScript( $vars );
 463         }
 464
 465         /**
 466          * To make it harder for someone to slip a user a fake
 467          * user-JavaScript or user-CSS preview, a random token
 468          * is associated with the login session. If it's not
 469          * passed back with the preview request, we won't render
 470          * the code.
 471          *
 472          * @param $action String: 'edit', 'submit' etc.
 473          * @return bool
 474          */
 475         public function userCanPreview( $action ) {
 476                 global $wgRequest, $wgUser;
 477
 478                 if( $action != 'submit' ) {
 479                         return false;
 480                 }
 481                 if( !$wgRequest->wasPosted() ) {
 482                         return false;
 483                 }
 484                 if( !$this->mTitle->userCanEditCssSubpage() ) {
 485                         return false;
 486                 }
 487                 if( !$this->mTitle->userCanEditJsSubpage() ) {
 488                         return false;
 489                 }
 490                 return $wgUser->matchEditToken(
 491                         $wgRequest->getVal( 'wpEditToken' ) );
 492         }
 493
 494         /**
 495          * Generated JavaScript action=raw&gen=js
 496          * This returns MediaWiki:Common.js and MediaWiki:[Skinname].js concate-
 497          * nated together.  For some bizarre reason, it does *not* return any
 498          * custom user JS from subpages.  Huh?
 499          *
 500          * There's absolutely no reason to have separate Monobook/Common JSes.
 501          * Any JS that cares can just check the skin variable generated at the
 502          * top.  For now Monobook.js will be maintained, but it should be consi-
 503          * dered deprecated.
 504          *
 505          * @param $skinName String: If set, overrides the skin name
 506          * @return string
 507          */
 508         public function generateUserJs( $skinName = null ) {
 509                 global $wgStylePath;
 510
 511                 wfProfileIn( __METHOD__ );
 512                 if( !$skinName ) {
 513                         $skinName = $this->getSkinName();
 514                 }
 515
 516                 $s = "/* generated javascript */\n";
 517                 $s .= "var skin = '" . Xml::escapeJsString( $skinName ) . "';\n";
 518                 $s .= "var stylepath = '" . Xml::escapeJsString( $wgStylePath ) . "';";
 519                 $s .= "\n\n/* MediaWiki:Common.js */\n";
 520                 $commonJs = wfMsgExt( 'common.js', 'content' );
 521                 if ( !wfEmptyMsg( 'common.js', $commonJs ) ) {
 522                         $s .= $commonJs;
 523                 }
 524
 525                 $s .= "\n\n/* MediaWiki:" . ucfirst( $skinName ) . ".js */\n";
 526                 // avoid inclusion of non defined user JavaScript (with custom skins only)
 527                 // by checking for default message content
 528                 $msgKey = ucfirst( $skinName ) . '.js';
 529                 $userJS = wfMsgExt( $msgKey, 'content' );
 530                 if ( !wfEmptyMsg( $msgKey, $userJS ) ) {
 531                         $s .= $userJS;
 532                 }
 533
 534                 wfProfileOut( __METHOD__ );
 535                 return $s;
 536         }
 537
 538         /**
 539          * Generate user stylesheet for action=raw&gen=css
 540          */
 541         public function generateUserStylesheet() {
 542                 wfProfileIn( __METHOD__ );
 543                 $s = "/* generated user stylesheet */\n" .
 544                         $this->reallyGenerateUserStylesheet();
 545                 wfProfileOut( __METHOD__ );
 546                 return $s;
 547         }
 548
 549         /**
 550          * Split for easier subclassing in SkinSimple, SkinStandard and SkinCologneBlue
 551          * Anything in here won't be generated if $wgAllowUserCssPrefs is false.
 552          */
 553         protected function reallyGenerateUserStylesheet() {
 554                 global $wgUser;
 555                 $s = '';
 556                 if( ( $undopt = $wgUser->getOption( 'underline' ) ) < 2 ) {
 557                         $underline = $undopt ? 'underline' : 'none';
 558                         $s .= "a { text-decoration: $underline; }\n";
 559                 }
 560                 if( !$wgUser->getOption( 'highlightbroken' ) ) {
 561                         $s .= <<<CSS
 562 a.new, #quickbar a.new,
 563 a.stub, #quickbar a.stub {
 564         color: inherit;
 565 }
 566 a.new:after, #quickbar a.new:after {
 567         content: "?";
 568         color: #CC2200;
 569 }
 570 a.stub:after, #quickbar a.stub:after {
 571         content: "!";
 572         color: #772233;
 573 }
 574 CSS;
 575                 }
 576                 if( $wgUser->getOption( 'justify' ) ) {
 577                         $s .= "#article, #bodyContent, #mw_content { text-align: justify; }\n";
 578                 }
 579                 if( !$wgUser->getOption( 'showtoc' ) ) {
 580                         $s .= "#toc { display: none; }\n";
 581                 }
 582                 if( !$wgUser->getOption( 'editsection' ) ) {
 583                         $s .= ".editsection { display: none; }\n";
 584                 }
 585                 $fontstyle = $wgUser->getOption( 'editfont' );
 586                 if ( $fontstyle !== 'default' ) {
 587                         $s .= "textarea { font-family: $fontstyle; }\n";
 588                 }
 589                 return $s;
 590         }
 591
 592         /**
 593          * @private
 594          */
 595         function setupUserCss( OutputPage $out ) {
 596                 global $wgRequest, $wgContLang, $wgUser;
 597                 global $wgAllowUserCss, $wgUseSiteCss, $wgSquidMaxage, $wgStylePath;
 598
 599                 wfProfileIn( __METHOD__ );
 600
 601                 $this->setupSkinUserCss( $out );
 602
 603                 $siteargs = array(
 604                         'action' => 'raw',
 605                         'maxage' => $wgSquidMaxage,
 606                 );
 607
 608                 // Add any extension CSS
 609                 foreach ( $out->getExtStyle() as $url ) {
 610                         $out->addStyle( $url );
 611                 }
 612
 613                 // If we use the site's dynamic CSS, throw that in, too
 614                 // Per-site custom styles
 615                 if( $wgUseSiteCss ) {
 616                         global $wgHandheldStyle;
 617                         $query = wfArrayToCGI( array(
 618                                 'usemsgcache' => 'yes',
 619                                 'ctype' => 'text/css',
 620                                 'smaxage' => $wgSquidMaxage
 621                         ) + $siteargs );
 622                         # Site settings must override extension css! (bug 15025)
 623                         $out->addStyle( self::makeNSUrl( 'Common.css', $query, NS_MEDIAWIKI ) );
 624                         $out->addStyle( self::makeNSUrl( 'Print.css', $query, NS_MEDIAWIKI ), 'print' );
 625                         if( $wgHandheldStyle ) {
 626                                 $out->addStyle( self::makeNSUrl( 'Handheld.css', $query, NS_MEDIAWIKI ), 'handheld' );
 627                         }
 628                         $out->addStyle( self::makeNSUrl( $this->getSkinName() . '.css', $query, NS_MEDIAWIKI ) );
 629                 }
 630
 631                 global $wgAllowUserCssPrefs;
 632                 if( $wgAllowUserCssPrefs ){
 633                         if( $wgUser->isLoggedIn() ) {
 634                                 // Ensure that logged-in users' generated CSS isn't clobbered
 635                                 // by anons' publicly cacheable generated CSS.
 636                                 $siteargs['smaxage'] = '0';
 637                                 $siteargs['ts'] = $wgUser->mTouched;
 638                         }
 639                         // Per-user styles based on preferences
 640                         $siteargs['gen'] = 'css';
 641                         if( ( $us = $wgRequest->getVal( 'useskin', '' ) ) !== '' ) {
 642                                 $siteargs['useskin'] = $us;
 643                         }
 644                         $out->addStyle( self::makeUrl( '-', wfArrayToCGI( $siteargs ) ) );
 645                 }
 646
 647                 // Per-user custom style pages
 648                 if( $wgAllowUserCss && $wgUser->isLoggedIn() ) {
 649                         $action = $wgRequest->getVal( 'action' );
 650                         # If we're previewing the CSS page, use it
 651                         if( $this->mTitle->isCssSubpage() && $this->userCanPreview( $action ) ) {
 652                                 // @FIXME: properly escape the cdata!
 653                                 $out->addInlineStyle( $wgRequest->getText( 'wpTextbox1' ) );
 654                         } else {
 655                                 $names = array( 'common', $this->getSkinName() );
 656                                 foreach( $names as $name ) {
 657                                         $out->addStyle( self::makeUrl(
 658                                                 $this->userpage . '/' . $name . '.css',
 659                                                 'action=raw&ctype=text/css' )
 660                                         );
 661                                 }
 662                         }
 663                 }
 664
 665                 wfProfileOut( __METHOD__ );
 666         }
 667
 668         /**
 669          * Add skin specific stylesheets
 670          * @param $out OutputPage
 671          */
 672         function setupSkinUserCss( OutputPage $out ) {
 673                 $out->addStyle( 'common/shared.css' );
 674                 $out->addStyle( 'common/oldshared.css' );
 675                 $out->addStyle( $this->getStylesheet() );
 676                 $out->addStyle( 'common/common_rtl.css', '', '', 'rtl' );
 677         }
 678
 679         function getPageClasses( $title ) {
 680                 $numeric = 'ns-' . $title->getNamespace();
 681                 if( $title->getNamespace() == NS_SPECIAL ) {
 682                         $type = 'ns-special';
 683                 } elseif( $title->isTalkPage() ) {
 684                         $type = 'ns-talk';
 685                 } else {
 686                         $type = 'ns-subject';
 687                 }
 688                 $name = Sanitizer::escapeClass( 'page-' . $title->getPrefixedText() );
 689                 return "$numeric $type $name";
 690         }
 691
 692         /**
 693          * URL to the logo
 694          */
 695         function getLogo() {
 696                 global $wgLogo;
 697                 return $wgLogo;
 698         }
 699
 700         /**
 701          * This will be called immediately after the <body> tag.  Split into
 702          * two functions to make it easier to subclass.
 703          */
 704         function beforeContent() {
 705                 return $this->doBeforeContent();
 706         }
 707
 708         function doBeforeContent() {
 709                 global $wgContLang;
 710                 wfProfileIn( __METHOD__ );
 711
 712                 $s = '';
 713                 $qb = $this->qbSetting();
 714
 715                 $langlinks = $this->otherLanguages();
 716                 if( $langlinks ) {
 717                         $rows = 2;
 718                         $borderhack = '';
 719                 } else {
 720                         $rows = 1;
 721                         $langlinks = false;
 722                         $borderhack = 'class="top"';
 723                 }
 724
 725                 $s .= "\n<div id='content'>\n<div id='topbar'>\n" .
 726                   "<table border='0' cellspacing='0' width='98%'>\n<tr>\n";
 727
 728                 $shove = ( $qb != 0 );
 729                 $left = ( $qb == 1 || $qb == 3 );
 730                 if( $wgContLang->isRTL() ) {
 731                         $left = !$left;
 732                 }
 733
 734                 if( !$shove ) {
 735                         $s .= "<td class='top' align='left' valign='top' rowspan='{$rows}'>\n" .
 736                                 $this->logoText() . '</td>';
 737                 } elseif( $left ) {
 738                         $s .= $this->getQuickbarCompensator( $rows );
 739                 }
 740                 $l = $wgContLang->alignStart();
 741                 $s .= "<td {$borderhack} align='$l' valign='top'>\n";
 742
 743                 $s .= $this->topLinks();
 744                 $s .= '<p class="subtitle">' . $this->pageTitleLinks() . "</p>\n";
 745
 746                 $r = $wgContLang->alignEnd();
 747                 $s .= "</td>\n<td {$borderhack} valign='top' align='$r' nowrap='nowrap'>";
 748                 $s .= $this->nameAndLogin();
 749                 $s .= "\n<br />" . $this->searchForm() . '</td>';
 750
 751                 if ( $langlinks ) {
 752                         $s .= "</tr>\n<tr>\n<td class='top' colspan=\"2\">$langlinks</td>\n";
 753                 }
 754
 755                 if ( $shove && !$left ) { # Right
 756                         $s .= $this->getQuickbarCompensator( $rows );
 757                 }
 758                 $s .= "</tr>\n</table>\n</div>\n";
 759                 $s .= "\n<div id='article'>\n";
 760
 761                 $notice = wfGetSiteNotice();
 762                 if( $notice ) {
 763                         $s .= "\n<div id='siteNotice'>$notice</div>\n";
 764                 }
 765                 $s .= $this->pageTitle();
 766                 $s .= $this->pageSubtitle();
 767                 $s .= $this->getCategories();
 768                 wfProfileOut( __METHOD__ );
 769                 return $s;
 770         }
 771
 772         function getCategoryLinks() {
 773                 global $wgOut, $wgUseCategoryBrowser;
 774                 global $wgContLang, $wgUser;
 775
 776                 if( count( $wgOut->mCategoryLinks ) == 0 ) {
 777                         return '';
 778                 }
 779
 780                 # Separator
 781                 $sep = wfMsgExt( 'catseparator', array( 'parsemag', 'escapenoentities' ) );
 782
 783                 // Use Unicode bidi embedding override characters,
 784                 // to make sure links don't smash each other up in ugly ways.
 785                 $dir = $wgContLang->getDir();
 786                 $embed = "<span dir='$dir'>";
 787                 $pop = '</span>';
 788
 789                 $allCats = $wgOut->getCategoryLinks();
 790                 $s = '';
 791                 $colon = wfMsgExt( 'colon-separator', 'escapenoentities' );
 792                 if ( !empty( $allCats['normal'] ) ) {
 793                         $t = $embed . implode( "{$pop} {$sep} {$embed}" , $allCats['normal'] ) . $pop;
 794
 795                         $msg = wfMsgExt( 'pagecategories', array( 'parsemag', 'escapenoentities' ), count( $allCats['normal'] ) );
 796                         $s .= '<div id="mw-normal-catlinks">' .
 797                                 $this->link( Title::newFromText( wfMsgForContent( 'pagecategorieslink' ) ), $msg )
 798                                 . $colon . $t . '</div>';
 799                 }
 800
 801                 # Hidden categories
 802                 if ( isset( $allCats['hidden'] ) ) {
 803                         if ( $wgUser->getBoolOption( 'showhiddencats' ) ) {
 804                                 $class ='mw-hidden-cats-user-shown';
 805                         } elseif ( $this->mTitle->getNamespace() == NS_CATEGORY ) {
 806                                 $class = 'mw-hidden-cats-ns-shown';
 807                         } else {
 808                                 $class = 'mw-hidden-cats-hidden';
 809                         }
 810                         $s .= "<div id=\"mw-hidden-catlinks\" class=\"$class\">" .
 811                                 wfMsgExt( 'hidden-categories', array( 'parsemag', 'escapenoentities' ), count( $allCats['hidden'] ) ) .
 812                                 $colon . $embed . implode( "$pop $sep $embed", $allCats['hidden'] ) . $pop .
 813                                 '</div>';
 814                 }
 815
 816                 # optional 'dmoz-like' category browser. Will be shown under the list
 817                 # of categories an article belong to
 818                 if( $wgUseCategoryBrowser ) {
 819                         $s .= '<br /><hr />';
 820
 821                         # get a big array of the parents tree
 822                         $parenttree = $this->mTitle->getParentCategoryTree();
 823                         # Skin object passed by reference cause it can not be
 824                         # accessed under the method subfunction drawCategoryBrowser
 825                         $tempout = explode( "\n", Skin::drawCategoryBrowser( $parenttree, $this ) );
 826                         # Clean out bogus first entry and sort them
 827                         unset( $tempout[0] );
 828                         asort( $tempout );
 829                         # Output one per line
 830                         $s .= implode( "<br />\n", $tempout );
 831                 }
 832
 833                 return $s;
 834         }
 835
 836         /**
 837          * Render the array as a serie of links.
 838          * @param $tree Array: categories tree returned by Title::getParentCategoryTree
 839          * @param &skin Object: skin passed by reference
 840          * @return String separated by &gt;, terminate with "\n"
 841          */
 842         function drawCategoryBrowser( $tree, &$skin ) {
 843                 $return = '';
 844                 foreach( $tree as $element => $parent ) {
 845                         if( empty( $parent ) ) {
 846                                 # element start a new list
 847                                 $return .= "\n";
 848                         } else {
 849                                 # grab the others elements
 850                                 $return .= Skin::drawCategoryBrowser( $parent, $skin ) . ' &gt; ';
 851                         }
 852                         # add our current element to the list
 853                         $eltitle = Title::newFromText( $element );
 854                         $return .=  $skin->link( $eltitle, $eltitle->getText() );
 855                 }
 856                 return $return;
 857         }
 858
 859         function getCategories() {
 860                 $catlinks = $this->getCategoryLinks();
 861
 862                 $classes = 'catlinks';
 863
 864                 // Check what we're showing
 865                 global $wgOut, $wgUser;
 866                 $allCats = $wgOut->getCategoryLinks();
 867                 $showHidden = $wgUser->getBoolOption( 'showhiddencats' ) ||
 868                                                 $this->mTitle->getNamespace() == NS_CATEGORY;
 869
 870                 if( empty( $allCats['normal'] ) && !( !empty( $allCats['hidden'] ) && $showHidden ) ) {
 871                         $classes .= ' catlinks-allhidden';
 872                 }
 873
 874                 return "<div id='catlinks' class='$classes'>{$catlinks}</div>";
 875         }
 876
 877         function getQuickbarCompensator( $rows = 1 ) {
 878                 return "<td width='152' rowspan='{$rows}'>&#160;</td>";
 879         }
 880
 881         /**
 882          * This runs a hook to allow extensions placing their stuff after content
 883          * and article metadata (e.g. categories).
 884          * Note: This function has nothing to do with afterContent().
 885          *
 886          * This hook is placed here in order to allow using the same hook for all
 887          * skins, both the SkinTemplate based ones and the older ones, which directly
 888          * use this class to get their data.
 889          *
 890          * The output of this function gets processed in SkinTemplate::outputPage() for
 891          * the SkinTemplate based skins, all other skins should directly echo it.
 892          *
 893          * Returns an empty string by default, if not changed by any hook function.
 894          */
 895         protected function afterContentHook() {
 896                 $data = '';
 897
 898                 if( wfRunHooks( 'SkinAfterContent', array( &$data ) ) ) {
 899                         // adding just some spaces shouldn't toggle the output
 900                         // of the whole <div/>, so we use trim() here
 901                         if( trim( $data ) != '' ) {
 902                                 // Doing this here instead of in the skins to
 903                                 // ensure that the div has the same ID in all
 904                                 // skins
 905                                 $data = "<div id='mw-data-after-content'>\n" .
 906                                         "\t$data\n" .
 907                                         "</div>\n";
 908                         }
 909                 } else {
 910                         wfDebug( "Hook SkinAfterContent changed output processing.\n" );
 911                 }
 912
 913                 return $data;
 914         }
 915
 916         /**
 917          * Generate debug data HTML for displaying at the bottom of the main content
 918          * area.
 919          * @return String HTML containing debug data, if enabled (otherwise empty).
 920          */
 921         protected function generateDebugHTML() {
 922                 global $wgShowDebug, $wgOut;
 923                 if ( $wgShowDebug ) {
 924                         $listInternals = $this->formatDebugHTML( $wgOut->mDebugtext );
 925                         return "\n<hr />\n<strong>Debug data:</strong><ul style=\"font-family:monospace;\" id=\"mw-debug-html\">" .
 926                                 $listInternals . "</ul>\n";
 927                 }
 928                 return '';
 929         }
 930
 931         private function formatDebugHTML( $debugText ) {
 932                 $lines = explode( "\n", $debugText );
 933                 $curIdent = 0;
 934                 $ret = '<li>';
 935                 foreach( $lines as $line ) {
 936                         $m = array();
 937                         $display = ltrim( $line );
 938                         $ident = strlen( $line ) - strlen( $display );
 939                         $diff = $ident - $curIdent;
 940
 941                         if ( $display == '' ) {
 942                                 $display = "\xc2\xa0";
 943                         }
 944
 945                         if ( !$ident && $diff < 0 && substr( $display, 0, 9 ) != 'Entering ' && substr( $display, 0, 8 ) != 'Exiting ' ) {
 946                                 $ident = $curIdent;
 947                                 $diff = 0;
 948                                 $display = '<span style="background:yellow;">' . htmlspecialchars( $display ) . '</span>';
 949                         } else {
 950                                 $display = htmlspecialchars( $display );
 951                         }
 952
 953                         if ( $diff < 0 ) {
 954                                 $ret .= str_repeat( "</li></ul>\n", -$diff ) . "</li><li>\n";
 955                         } elseif ( $diff == 0 ) {
 956                                 $ret .= "</li><li>\n";
 957                         } else {
 958                                 $ret .= str_repeat( "<ul><li>\n", $diff );
 959                         }
 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() {
1000                 return '</div></div>';
1001         }
1002
1003         function pageTitleLinks() {
1004                 global $wgOut, $wgUser, $wgRequest, $wgLang;
1005
1006                 $oldid = $wgRequest->getVal( 'oldid' );
1007                 $diff = $wgRequest->getVal( 'diff' );
1008                 $action = $wgRequest->getText( 'action' );
1009
1010                 $s[] = $this->printableLink();
1011                 $disclaimer = $this->disclaimerLink(); # may be empty
1012                 if( $disclaimer ) {
1013                         $s[] = $disclaimer;
1014                 }
1015                 $privacy = $this->privacyLink(); # may be empty too
1016                 if( $privacy ) {
1017                         $s[] = $privacy;
1018                 }
1019
1020                 if ( $wgOut->isArticleRelated() ) {
1021                         if ( $this->mTitle->getNamespace() == NS_FILE ) {
1022                                 $name = $this->mTitle->getDBkey();
1023                                 $image = wfFindFile( $this->mTitle );
1024                                 if( $image ) {
1025                                         $link = htmlspecialchars( $image->getURL() );
1026                                         $style = $this->getInternalLinkAttributes( $link, $name );
1027                                         $s[] = "<a href=\"{$link}\"{$style}>{$name}</a>";
1028                                 }
1029                         }
1030                 }
1031                 if ( 'history' == $action || isset( $diff ) || isset( $oldid ) ) {
1032                         $s[] .= $this->link(
1033                                         $this->mTitle,
1034                                         wfMsg( 'currentrev' ),
1035                                         array(),
1036                                         array(),
1037                                         array( 'known', 'noclasses' )
1038                         );
1039                 }
1040
1041                 if ( $wgUser->getNewtalk() ) {
1042                         # do not show "You have new messages" text when we are viewing our
1043                         # own talk page
1044                         if( !$this->mTitle->equals( $wgUser->getTalkPage() ) ) {
1045                                 $tl = $this->link(
1046                                         $wgUser->getTalkPage(),
1047                                         wfMsgHtml( 'newmessageslink' ),
1048                                         array(),
1049                                         array( 'redirect' => 'no' ),
1050                                         array( 'known', 'noclasses' )
1051                                 );
1052
1053                                 $dl = $this->link(
1054                                         $wgUser->getTalkPage(),
1055                                         wfMsgHtml( 'newmessagesdifflink' ),
1056                                         array(),
1057                                         array( 'diff' => 'cur' ),
1058                                         array( 'known', 'noclasses' )
1059                                 );
1060                                 $s[] = '<strong>'. wfMsg( 'youhavenewmessages', $tl, $dl ) . '</strong>';
1061                                 # disable caching
1062                                 $wgOut->setSquidMaxage( 0 );
1063                                 $wgOut->enableClientCache( false );
1064                         }
1065                 }
1066
1067                 $undelete = $this->getUndeleteLink();
1068                 if( !empty( $undelete ) ) {
1069                         $s[] = $undelete;
1070                 }
1071                 return $wgLang->pipeList( $s );
1072         }
1073
1074         function getUndeleteLink() {
1075                 global $wgUser, $wgContLang, $wgLang, $wgRequest;
1076
1077                 $action = $wgRequest->getVal( 'action', 'view' );
1078
1079                 if ( $wgUser->isAllowed( 'deletedhistory' ) &&
1080                         ( $this->mTitle->getArticleId() == 0 || $action == 'history' ) ) {
1081                         $n = $this->mTitle->isDeleted();
1082                         if ( $n ) {
1083                                 if ( $wgUser->isAllowed( 'undelete' ) ) {
1084                                         $msg = 'thisisdeleted';
1085                                 } else {
1086                                         $msg = 'viewdeleted';
1087                                 }
1088                                 return wfMsg(
1089                                         $msg,
1090                                         $this->link(
1091                                                 SpecialPage::getTitleFor( 'Undelete', $this->mTitle->getPrefixedDBkey() ),
1092                                                 wfMsgExt( 'restorelink', array( 'parsemag', 'escape' ), $wgLang->formatNum( $n ) ),
1093                                                 array(),
1094                                                 array(),
1095                                                 array( 'known', 'noclasses' )
1096                                         )
1097                                 );
1098                         }
1099                 }
1100                 return '';
1101         }
1102
1103         function printableLink() {
1104                 global $wgOut, $wgFeedClasses, $wgRequest, $wgLang;
1105
1106                 $s = array();
1107
1108                 if ( !$wgOut->isPrintable() ) {
1109                         $printurl = $wgRequest->escapeAppendQuery( 'printable=yes' );
1110                         $s[] = "<a href=\"$printurl\" rel=\"alternate\">" . wfMsg( 'printableversion' ) . '</a>';
1111                 }
1112
1113                 if( $wgOut->isSyndicated() ) {
1114                         foreach( $wgFeedClasses as $format => $class ) {
1115                                 $feedurl = $wgRequest->escapeAppendQuery( "feed=$format" );
1116                                 $s[] = "<a href=\"$feedurl\" rel=\"alternate\" type=\"application/{$format}+xml\""
1117                                                 . " class=\"feedlink\">" . wfMsgHtml( "feed-$format" ) . "</a>";
1118                         }
1119                 }
1120                 return $wgLang->pipeList( $s );
1121         }
1122
1123         /**
1124          * Gets the h1 element with the page title.
1125          * @return string
1126          */
1127         function pageTitle() {
1128                 global $wgOut;
1129                 $s = '<h1 class="pagetitle">' . $wgOut->getPageTitle() . '</h1>';
1130                 return $s;
1131         }
1132
1133         function pageSubtitle() {
1134                 global $wgOut;
1135
1136                 $sub = $wgOut->getSubtitle();
1137                 if ( $sub == '' ) {
1138                         global $wgExtraSubtitle;
1139                         $sub = wfMsgExt( 'tagline', 'parsemag' ) . $wgExtraSubtitle;
1140                 }
1141                 $subpages = $this->subPageSubtitle();
1142                 $sub .= !empty( $subpages ) ? "</p><p class='subpages'>$subpages" : '';
1143                 $s = "<p class='subtitle'>{$sub}</p>\n";
1144                 return $s;
1145         }
1146
1147         function subPageSubtitle() {
1148                 $subpages = '';
1149                 if( !wfRunHooks( 'SkinSubPageSubtitle', array( &$subpages ) ) ) {
1150                         return $subpages;
1151                 }
1152
1153                 global $wgOut;
1154                 if( $wgOut->isArticle() && MWNamespace::hasSubpages( $this->mTitle->getNamespace() ) ) {
1155                         $ptext = $this->mTitle->getPrefixedText();
1156                         if( preg_match( '/\//', $ptext ) ) {
1157                                 $links = explode( '/', $ptext );
1158                                 array_pop( $links );
1159                                 $c = 0;
1160                                 $growinglink = '';
1161                                 $display = '';
1162                                 foreach( $links as $link ) {
1163                                         $growinglink .= $link;
1164                                         $display .= $link;
1165                                         $linkObj = Title::newFromText( $growinglink );
1166                                         if( is_object( $linkObj ) && $linkObj->exists() ) {
1167                                                 $getlink = $this->link(
1168                                                         $linkObj,
1169                                                         htmlspecialchars( $display ),
1170                                                         array(),
1171                                                         array(),
1172                                                         array( 'known', 'noclasses' )
1173                                                 );
1174                                                 $c++;
1175                                                 if( $c > 1 ) {
1176                                                         $subpages .= wfMsgExt( 'pipe-separator', 'escapenoentities' );
1177                                                 } else  {
1178                                                         $subpages .= '&lt; ';
1179                                                 }
1180                                                 $subpages .= $getlink;
1181                                                 $display = '';
1182                                         } else {
1183                                                 $display .= '/';
1184                                         }
1185                                         $growinglink .= '/';
1186                                 }
1187                         }
1188                 }
1189                 return $subpages;
1190         }
1191
1192         /**
1193          * Returns true if the IP should be shown in the header
1194          */
1195         function showIPinHeader() {
1196                 global $wgShowIPinHeader;
1197                 return $wgShowIPinHeader && session_id() != '';
1198         }
1199
1200         function nameAndLogin() {
1201                 global $wgUser, $wgLang, $wgContLang;
1202
1203                 $logoutPage = $wgContLang->specialPage( 'Userlogout' );
1204
1205                 $ret = '';
1206                 if ( $wgUser->isAnon() ) {
1207                         if( $this->showIPinHeader() ) {
1208                                 $name = wfGetIP();
1209
1210                                 $talkLink = $this->link( $wgUser->getTalkPage(),
1211                                         $wgLang->getNsText( NS_TALK ) );
1212
1213                                 $ret .= "$name ($talkLink)";
1214                         } else {
1215                                 $ret .= wfMsg( 'notloggedin' );
1216                         }
1217
1218                         $returnTo = $this->mTitle->getPrefixedDBkey();
1219                         $query = array();
1220                         if ( $logoutPage != $returnTo ) {
1221                                 $query['returnto'] = $returnTo;
1222                         }
1223
1224                         $loginlink = $wgUser->isAllowed( 'createaccount' )
1225                                 ? 'nav-login-createaccount'
1226                                 : 'login';
1227                         $ret .= "\n<br />" . $this->link(
1228                                 SpecialPage::getTitleFor( 'Userlogin' ),
1229                                 wfMsg( $loginlink ), array(), $query
1230                         );
1231                 } else {
1232                         $returnTo = $this->mTitle->getPrefixedDBkey();
1233                         $talkLink = $this->link( $wgUser->getTalkPage(),
1234                                 $wgLang->getNsText( NS_TALK ) );
1235
1236                         $ret .= $this->link( $wgUser->getUserPage(),
1237                                 htmlspecialchars( $wgUser->getName() ) );
1238                         $ret .= " ($talkLink)<br />";
1239                         $ret .= $wgLang->pipeList( array(
1240                                 $this->link(
1241                                         SpecialPage::getTitleFor( 'Userlogout' ), wfMsg( 'logout' ),
1242                                         array(), array( 'returnto' => $returnTo )
1243                                 ),
1244                                 $this->specialLink( 'preferences' ),
1245                         ) );
1246                 }
1247                 $ret = $wgLang->pipeList( array(
1248                         $ret,
1249                         $this->link(
1250                                 Title::newFromText( wfMsgForContent( 'helppage' ) ),
1251                                 wfMsg( 'help' )
1252                         ),
1253                 ) );
1254
1255                 return $ret;
1256         }
1257
1258         function getSearchLink() {
1259                 $searchPage = SpecialPage::getTitleFor( 'Search' );
1260                 return $searchPage->getLocalURL();
1261         }
1262
1263         function escapeSearchLink() {
1264                 return htmlspecialchars( $this->getSearchLink() );
1265         }
1266
1267         function searchForm() {
1268                 global $wgRequest, $wgUseTwoButtonsSearchForm;
1269                 $search = $wgRequest->getText( 'search' );
1270
1271                 $s = '<form id="searchform' . $this->searchboxes . '" name="search" class="inline" method="post" action="'
1272                   . $this->escapeSearchLink() . "\">\n"
1273                   . '<input type="text" id="searchInput' . $this->searchboxes . '" name="search" size="19" value="'
1274                   . htmlspecialchars( substr( $search, 0, 256 ) ) . "\" />\n"
1275                   . '<input type="submit" name="go" value="' . wfMsg( 'searcharticle' ) . '" />';
1276
1277                 if( $wgUseTwoButtonsSearchForm ) {
1278                         $s .= '&#160;<input type="submit" name="fulltext" value="' . wfMsg( 'searchbutton' ) . "\" />\n";
1279                 } else {
1280                         $s .= ' <a href="' . $this->escapeSearchLink() . '" rel="search">' . wfMsg( 'powersearch-legend' ) . "</a>\n";
1281                 }
1282
1283                 $s .= '</form>';
1284
1285                 // Ensure unique id's for search boxes made after the first
1286                 $this->searchboxes = $this->searchboxes == '' ? 2 : $this->searchboxes + 1;
1287
1288                 return $s;
1289         }
1290
1291         function topLinks() {
1292                 global $wgOut;
1293
1294                 $s = array(
1295                         $this->mainPageLink(),
1296                         $this->specialLink( 'recentchanges' )
1297                 );
1298
1299                 if ( $wgOut->isArticleRelated() ) {
1300                         $s[] = $this->editThisPage();
1301                         $s[] = $this->historyLink();
1302                 }
1303                 # Many people don't like this dropdown box
1304                 #$s[] = $this->specialPagesList();
1305
1306                 if( $this->variantLinks() ) {
1307                         $s[] = $this->variantLinks();
1308                 }
1309
1310                 if( $this->extensionTabLinks() ) {
1311                         $s[] = $this->extensionTabLinks();
1312                 }
1313
1314                 // FIXME: Is using Language::pipeList impossible here? Do not quite understand the use of the newline
1315                 return implode( $s, wfMsgExt( 'pipe-separator', 'escapenoentities' ) . "\n" );
1316         }
1317
1318         /**
1319          * Compatibility for extensions adding functionality through tabs.
1320          * Eventually these old skins should be replaced with SkinTemplate-based
1321          * versions, sigh...
1322          * @return string
1323          */
1324         function extensionTabLinks() {
1325                 $tabs = array();
1326                 $out = '';
1327                 $s = array();
1328                 wfRunHooks( 'SkinTemplateTabs', array( $this, &$tabs ) );
1329                 foreach( $tabs as $tab ) {
1330                         $s[] = Xml::element( 'a',
1331                                 array( 'href' => $tab['href'] ),
1332                                 $tab['text'] );
1333                 }
1334
1335                 if( count( $s ) ) {
1336                         global $wgLang;
1337
1338                         $out = wfMsgExt( 'pipe-separator' , 'escapenoentities' );
1339                         $out .= $wgLang->pipeList( $s );
1340                 }
1341
1342                 return $out;
1343         }
1344
1345         /**
1346          * Language/charset variant links for classic-style skins
1347          * @return string
1348          */
1349         function variantLinks() {
1350                 $s = '';
1351                 /* show links to different language variants */
1352                 global $wgDisableLangConversion, $wgLang, $wgContLang;
1353                 $variants = $wgContLang->getVariants();
1354                 if( !$wgDisableLangConversion && sizeof( $variants ) > 1 ) {
1355                         foreach( $variants as $code ) {
1356                                 $varname = $wgContLang->getVariantname( $code );
1357                                 if( $varname == 'disable' ) {
1358                                         continue;
1359                                 }
1360                                 $s = $wgLang->pipeList( array(
1361                                         $s,
1362                                         '<a href="' . $this->mTitle->escapeLocalURL( 'variant=' . $code ) . '">' . htmlspecialchars( $varname ) . '</a>'
1363                                 ) );
1364                         }
1365                 }
1366                 return $s;
1367         }
1368
1369         function bottomLinks() {
1370                 global $wgOut, $wgUser, $wgUseTrackbacks;
1371                 $sep = wfMsgExt( 'pipe-separator', 'escapenoentities' ) . "\n";
1372
1373                 $s = '';
1374                 if ( $wgOut->isArticleRelated() ) {
1375                         $element[] = '<strong>' . $this->editThisPage() . '</strong>';
1376                         if ( $wgUser->isLoggedIn() ) {
1377                                 $element[] = $this->watchThisPage();
1378                         }
1379                         $element[] = $this->talkLink();
1380                         $element[] = $this->historyLink();
1381                         $element[] = $this->whatLinksHere();
1382                         $element[] = $this->watchPageLinksLink();
1383
1384                         if( $wgUseTrackbacks ) {
1385                                 $element[] = $this->trackbackLink();
1386                         }
1387
1388                         if (
1389                                 $this->mTitle->getNamespace() == NS_USER ||
1390                                 $this->mTitle->getNamespace() == NS_USER_TALK
1391                         )
1392                         {
1393                                 $id = User::idFromName( $this->mTitle->getText() );
1394                                 $ip = User::isIP( $this->mTitle->getText() );
1395
1396                                 # Both anons and non-anons have contributions list
1397                                 if( $id || $ip ) {
1398                                         $element[] = $this->userContribsLink();
1399                                 }
1400                                 if( $this->showEmailUser( $id ) ) {
1401                                         $element[] = $this->emailUserLink();
1402                                 }
1403                         }
1404
1405                         $s = implode( $element, $sep );
1406
1407                         if ( $this->mTitle->getArticleId() ) {
1408                                 $s .= "\n<br />";
1409                                 // Delete/protect/move links for privileged users
1410                                 if( $wgUser->isAllowed( 'delete' ) ) {
1411                                         $s .= $this->deleteThisPage();
1412                                 }
1413                                 if( $wgUser->isAllowed( 'protect' ) ) {
1414                                         $s .= $sep . $this->protectThisPage();
1415                                 }
1416                                 if( $wgUser->isAllowed( 'move' ) ) {
1417                                         $s .= $sep . $this->moveThisPage();
1418                                 }
1419                         }
1420                         $s .= "<br />\n" . $this->otherLanguages();
1421                 }
1422
1423                 return $s;
1424         }
1425
1426         function pageStats() {
1427                 global $wgOut, $wgLang, $wgArticle, $wgRequest, $wgUser;
1428                 global $wgDisableCounters, $wgMaxCredits, $wgShowCreditsIfMax, $wgPageShowWatchingUsers;
1429
1430                 $oldid = $wgRequest->getVal( 'oldid' );
1431                 $diff = $wgRequest->getVal( 'diff' );
1432                 if ( !$wgOut->isArticle() ) {
1433                         return '';
1434                 }
1435                 if( !$wgArticle instanceof Article ) {
1436                         return '';
1437                 }
1438                 if ( isset( $oldid ) || isset( $diff ) ) {
1439                         return '';
1440                 }
1441                 if ( 0 == $wgArticle->getID() ) {
1442                         return '';
1443                 }
1444
1445                 $s = '';
1446                 if ( !$wgDisableCounters ) {
1447                         $count = $wgLang->formatNum( $wgArticle->getCount() );
1448                         if ( $count ) {
1449                                 $s = wfMsgExt( 'viewcount', array( 'parseinline' ), $count );
1450                         }
1451                 }
1452
1453                 if( $wgMaxCredits != 0 ) {
1454                         $s .= ' ' . Credits::getCredits( $wgArticle, $wgMaxCredits, $wgShowCreditsIfMax );
1455                 } else {
1456                         $s .= $this->lastModified();
1457                 }
1458
1459                 if( $wgPageShowWatchingUsers && $wgUser->getOption( 'shownumberswatching' ) ) {
1460                         $dbr = wfGetDB( DB_SLAVE );
1461                         $res = $dbr->select(
1462                                 'watchlist',
1463                                 array( 'COUNT(*) AS n' ),
1464                                 array(
1465                                         'wl_title' => $dbr->strencode( $this->mTitle->getDBkey() ),
1466                                         'wl_namespace' => $this->mTitle->getNamespace()
1467                                 ),
1468                                 __METHOD__
1469                         );
1470                         $x = $dbr->fetchObject( $res );
1471
1472                         $s .= ' ' . wfMsgExt( 'number_of_watching_users_pageview',
1473                                 array( 'parseinline' ), $wgLang->formatNum( $x->n )
1474                         );
1475                 }
1476
1477                 return $s . ' ' .  $this->getCopyright();
1478         }
1479
1480         function getCopyright( $type = 'detect' ) {
1481                 global $wgRightsPage, $wgRightsUrl, $wgRightsText, $wgRequest, $wgArticle;
1482
1483                 if ( $type == 'detect' ) {
1484                         $diff = $wgRequest->getVal( 'diff' );
1485                         $isCur = $wgArticle && $wgArticle->isCurrent();
1486                         if ( is_null( $diff ) && !$isCur && wfMsgForContent( 'history_copyright' ) !== '-' ) {
1487                                 $type = 'history';
1488                         } else {
1489                                 $type = 'normal';
1490                         }
1491                 }
1492
1493                 if ( $type == 'history' ) {
1494                         $msg = 'history_copyright';
1495                 } else {
1496                         $msg = 'copyright';
1497                 }
1498
1499                 $out = '';
1500                 if( $wgRightsPage ) {
1501                         $title = Title::newFromText( $wgRightsPage );
1502                         $link = $this->linkKnown( $title, $wgRightsText );
1503                 } elseif( $wgRightsUrl ) {
1504                         $link = $this->makeExternalLink( $wgRightsUrl, $wgRightsText );
1505                 } elseif( $wgRightsText ) {
1506                         $link = $wgRightsText;
1507                 } else {
1508                         # Give up now
1509                         return $out;
1510                 }
1511                 // Allow for site and per-namespace customization of copyright notice.
1512                 if( isset( $wgArticle ) ) {
1513                         wfRunHooks( 'SkinCopyrightFooter', array( $wgArticle->getTitle(), $type, &$msg, &$link ) );
1514                 }
1515
1516                 $out .= wfMsgForContent( $msg, $link );
1517                 return $out;
1518         }
1519
1520         function getCopyrightIcon() {
1521                 global $wgRightsUrl, $wgRightsText, $wgRightsIcon, $wgCopyrightIcon;
1522                 $out = '';
1523                 if ( isset( $wgCopyrightIcon ) && $wgCopyrightIcon ) {
1524                         $out = $wgCopyrightIcon;
1525                 } elseif ( $wgRightsIcon ) {
1526                         $icon = htmlspecialchars( $wgRightsIcon );
1527                         if ( $wgRightsUrl ) {
1528                                 $url = htmlspecialchars( $wgRightsUrl );
1529                                 $out .= '<a href="'.$url.'">';
1530                         }
1531                         $text = htmlspecialchars( $wgRightsText );
1532                         $out .= "<img src=\"$icon\" alt=\"$text\" width=\"88\" height=\"31\" />";
1533                         if ( $wgRightsUrl ) {
1534                                 $out .= '</a>';
1535                         }
1536                 }
1537                 return $out;
1538         }
1539
1540         /**
1541          * Gets the powered by MediaWiki icon.
1542          * @return string
1543          */
1544         function getPoweredBy() {
1545                 global $wgStylePath;
1546                 $url = htmlspecialchars( "$wgStylePath/common/images/poweredby_mediawiki_88x31.png" );
1547                 $img = '<a href="http://www.mediawiki.org/"><img src="' . $url . '" height="31" width="88" alt="Powered by MediaWiki" /></a>';
1548                 return $img;
1549         }
1550
1551         function lastModified() {
1552                 global $wgLang, $wgArticle;
1553                 if( $this->mRevisionId && $this->mRevisionId != $wgArticle->getLatest() ) {
1554                         $timestamp = Revision::getTimestampFromId( $wgArticle->getTitle(), $this->mRevisionId );
1555                 } else {
1556                         $timestamp = $wgArticle->getTimestamp();
1557                 }
1558                 if ( $timestamp ) {
1559                         $d = $wgLang->date( $timestamp, true );
1560                         $t = $wgLang->time( $timestamp, true );
1561                         $s = ' ' . wfMsg( 'lastmodifiedat', $d, $t );
1562                 } else {
1563                         $s = '';
1564                 }
1565                 if ( wfGetLB()->getLaggedSlaveMode() ) {
1566                         $s .= ' <strong>' . wfMsg( 'laggedslavemode' ) . '</strong>';
1567                 }
1568                 return $s;
1569         }
1570
1571         function logoText( $align = '' ) {
1572                 if ( $align != '' ) {
1573                         $a = " align='{$align}'";
1574                 } else {
1575                         $a = '';
1576                 }
1577
1578                 $mp = wfMsg( 'mainpage' );
1579                 $mptitle = Title::newMainPage();
1580                 $url = ( is_object( $mptitle ) ? $mptitle->escapeLocalURL() : '' );
1581
1582                 $logourl = $this->getLogo();
1583                 $s = "<a href='{$url}'><img{$a} src='{$logourl}' alt='[{$mp}]' /></a>";
1584                 return $s;
1585         }
1586
1587         /**
1588          * Show a drop-down box of special pages
1589          */
1590         function specialPagesList() {
1591                 global $wgUser, $wgContLang, $wgServer, $wgRedirectScript;
1592                 $pages = array_merge( SpecialPage::getRegularPages(), SpecialPage::getRestrictedPages() );
1593                 foreach ( $pages as $name => $page ) {
1594                         $pages[$name] = $page->getDescription();
1595                 }
1596
1597                 $go = wfMsg( 'go' );
1598                 $sp = wfMsg( 'specialpages' );
1599                 $spp = $wgContLang->specialPage( 'Specialpages' );
1600
1601                 $s = '<form id="specialpages" method="get" ' .
1602                   'action="' . htmlspecialchars( "{$wgServer}{$wgRedirectScript}" ) . "\">\n";
1603                 $s .= "<select name=\"wpDropdown\">\n";
1604                 $s .= "<option value=\"{$spp}\">{$sp}</option>\n";
1605
1606
1607                 foreach ( $pages as $name => $desc ) {
1608                         $p = $wgContLang->specialPage( $name );
1609                         $s .= "<option value=\"{$p}\">{$desc}</option>\n";
1610                 }
1611                 $s .= "</select>\n";
1612                 $s .= "<input type='submit' value=\"{$go}\" name='redirect' />\n";
1613                 $s .= "</form>\n";
1614                 return $s;
1615         }
1616
1617         /**
1618          * Gets the link to the wiki's main page.
1619          * @return string
1620          */
1621         function mainPageLink() {
1622                 $s = $this->link(
1623                         Title::newMainPage(),
1624                         wfMsg( 'mainpage' ),
1625                         array(),
1626                         array(),
1627                         array( 'known', 'noclasses' )
1628                 );
1629                 return $s;
1630         }
1631
1632         private function footerLink( $desc, $page ) {
1633                 // if the link description has been set to "-" in the default language,
1634                 if ( wfMsgForContent( $desc )  == '-') {
1635                         // then it is disabled, for all languages.
1636                         return '';
1637                 } else {
1638                         // Otherwise, we display the link for the user, described in their
1639                         // language (which may or may not be the same as the default language),
1640                         // but we make the link target be the one site-wide page.
1641                         $title = Title::newFromText( wfMsgForContent( $page ) );
1642                         return $this->linkKnown(
1643                                 $title,
1644                                 wfMsgExt( $desc, array( 'parsemag', 'escapenoentities' ) )
1645                         );
1646                 }
1647         }
1648
1649         /**
1650          * Gets the link to the wiki's privacy policy page.
1651          */
1652         function privacyLink() {
1653                 return $this->footerLink( 'privacy', 'privacypage' );
1654         }
1655
1656         /**
1657          * Gets the link to the wiki's about page.
1658          */
1659         function aboutLink() {
1660                 return $this->footerLink( 'aboutsite', 'aboutpage' );
1661         }
1662
1663         /**
1664          * Gets the link to the wiki's general disclaimers page.
1665          */
1666         function disclaimerLink() {
1667                 return $this->footerLink( 'disclaimers', 'disclaimerpage' );
1668         }
1669
1670         function editThisPage() {
1671                 global $wgOut;
1672
1673                 if ( !$wgOut->isArticleRelated() ) {
1674                         $s = wfMsg( 'protectedpage' );
1675                 } else {
1676                         if( $this->mTitle->quickUserCan( 'edit' ) && $this->mTitle->exists() ) {
1677                                 $t = wfMsg( 'editthispage' );
1678                         } elseif( $this->mTitle->quickUserCan( 'create' ) && !$this->mTitle->exists() ) {
1679                                 $t = wfMsg( 'create-this-page' );
1680                         } else {
1681                                 $t = wfMsg( 'viewsource' );
1682                         }
1683
1684                         $s = $this->link(
1685                                 $this->mTitle,
1686                                 $t,
1687                                 array(),
1688                                 $this->editUrlOptions(),
1689                                 array( 'known', 'noclasses' )
1690                         );
1691                 }
1692                 return $s;
1693         }
1694
1695         /**
1696          * Return URL options for the 'edit page' link.
1697          * This may include an 'oldid' specifier, if the current page view is such.
1698          *
1699          * @return array
1700          * @private
1701          */
1702         function editUrlOptions() {
1703                 global $wgArticle;
1704
1705                 $options = array( 'action' => 'edit' );
1706
1707                 if( $this->mRevisionId && ! $wgArticle->isCurrent() ) {
1708                         $options['oldid'] = intval( $this->mRevisionId );
1709                 }
1710
1711                 return $options;
1712         }
1713
1714         function deleteThisPage() {
1715                 global $wgUser, $wgRequest;
1716
1717                 $diff = $wgRequest->getVal( 'diff' );
1718                 if ( $this->mTitle->getArticleId() && ( !$diff ) && $wgUser->isAllowed( 'delete' ) ) {
1719                         $t = wfMsg( 'deletethispage' );
1720
1721                         $s = $this->link(
1722                                 $this->mTitle,
1723                                 $t,
1724                                 array(),
1725                                 array( 'action' => 'delete' ),
1726                                 array( 'known', 'noclasses' )
1727                         );
1728                 } else {
1729                         $s = '';
1730                 }
1731                 return $s;
1732         }
1733
1734         function protectThisPage() {
1735                 global $wgUser, $wgRequest;
1736
1737                 $diff = $wgRequest->getVal( 'diff' );
1738                 if ( $this->mTitle->getArticleId() && ( ! $diff ) && $wgUser->isAllowed('protect') ) {
1739                         if ( $this->mTitle->isProtected() ) {
1740                                 $text = wfMsg( 'unprotectthispage' );
1741                                 $query = array( 'action' => 'unprotect' );
1742                         } else {
1743                                 $text = wfMsg( 'protectthispage' );
1744                                 $query = array( 'action' => 'protect' );
1745                         }
1746
1747                         $s = $this->link(
1748                                 $this->mTitle,
1749                                 $text,
1750                                 array(),
1751                                 $query,
1752                                 array( 'known', 'noclasses' )
1753                         );
1754                 } else {
1755                         $s = '';
1756                 }
1757                 return $s;
1758         }
1759
1760         function watchThisPage() {
1761                 global $wgOut;
1762                 ++$this->mWatchLinkNum;
1763
1764                 if ( $wgOut->isArticleRelated() ) {
1765                         if ( $this->mTitle->userIsWatching() ) {
1766                                 $text = wfMsg( 'unwatchthispage' );
1767                                 $query = array( 'action' => 'unwatch' );
1768                                 $id = 'mw-unwatch-link' . $this->mWatchLinkNum;
1769                         } else {
1770                                 $text = wfMsg( 'watchthispage' );
1771                                 $query = array( 'action' => 'watch' );
1772                                 $id = 'mw-watch-link' . $this->mWatchLinkNum;
1773                         }
1774
1775                         $s = $this->link(
1776                                 $this->mTitle,
1777                                 $text,
1778                                 array( 'id' => $id ),
1779                                 $query,
1780                                 array( 'known', 'noclasses' )
1781                         );
1782                 } else {
1783                         $s = wfMsg( 'notanarticle' );
1784                 }
1785                 return $s;
1786         }
1787
1788         function moveThisPage() {
1789                 if ( $this->mTitle->quickUserCan( 'move' ) ) {
1790                         return $this->link(
1791                                 SpecialPage::getTitleFor( 'Movepage' ),
1792                                 wfMsg( 'movethispage' ),
1793                                 array(),
1794                                 array( 'target' => $this->mTitle->getPrefixedDBkey() ),
1795                                 array( 'known', 'noclasses' )
1796                         );
1797                 } else {
1798                         // no message if page is protected - would be redundant
1799                         return '';
1800                 }
1801         }
1802
1803         function historyLink() {
1804                 return $this->link(
1805                         $this->mTitle,
1806                         wfMsgHtml( 'history' ),
1807                         array( 'rel' => 'archives' ),
1808                         array( 'action' => 'history' )
1809                 );
1810         }
1811
1812         function whatLinksHere() {
1813                 return $this->link(
1814                         SpecialPage::getTitleFor( 'Whatlinkshere', $this->mTitle->getPrefixedDBkey() ),
1815                         wfMsgHtml( 'whatlinkshere' ),
1816                         array(),
1817                         array(),
1818                         array( 'known', 'noclasses' )
1819                 );
1820         }
1821
1822         function userContribsLink() {
1823                 return $this->link(
1824                         SpecialPage::getTitleFor( 'Contributions', $this->mTitle->getDBkey() ),
1825                         wfMsgHtml( 'contributions' ),
1826                         array(),
1827                         array(),
1828                         array( 'known', 'noclasses' )
1829                 );
1830         }
1831
1832         function showEmailUser( $id ) {
1833                 global $wgUser;
1834                 $targetUser = User::newFromId( $id );
1835                 return $wgUser->canSendEmail() && # the sending user must have a confirmed email address
1836                         $targetUser->canReceiveEmail(); # the target user must have a confirmed email address and allow emails from users
1837         }
1838
1839         function emailUserLink() {
1840                 return $this->link(
1841                         SpecialPage::getTitleFor( 'Emailuser', $this->mTitle->getDBkey() ),
1842                         wfMsg( 'emailuser' ),
1843                         array(),
1844                         array(),
1845                         array( 'known', 'noclasses' )
1846                 );
1847         }
1848
1849         function watchPageLinksLink() {
1850                 global $wgOut;
1851                 if ( !$wgOut->isArticleRelated() ) {
1852                         return '(' . wfMsg( 'notanarticle' ) . ')';
1853                 } else {
1854                         return $this->link(
1855                                 SpecialPage::getTitleFor( 'Recentchangeslinked', $this->mTitle->getPrefixedDBkey() ),
1856                                 wfMsg( 'recentchangeslinked-toolbox' ),
1857                                 array(),
1858                                 array(),
1859                                 array( 'known', 'noclasses' )
1860                         );
1861                 }
1862         }
1863
1864         function trackbackLink() {
1865                 return '<a href="' . $this->mTitle->trackbackURL() . '">'
1866                         . wfMsg( 'trackbacklink' ) . '</a>';
1867         }
1868
1869         function otherLanguages() {
1870                 global $wgOut, $wgContLang, $wgHideInterlanguageLinks;
1871
1872                 if ( $wgHideInterlanguageLinks ) {
1873                         return '';
1874                 }
1875
1876                 $a = $wgOut->getLanguageLinks();
1877                 if ( 0 == count( $a ) ) {
1878                         return '';
1879                 }
1880
1881                 $s = wfMsg( 'otherlanguages' ) . wfMsg( 'colon-separator' );
1882                 $first = true;
1883                 if( $wgContLang->isRTL() ) {
1884                         $s .= '<span dir="LTR">';
1885                 }
1886                 foreach( $a as $l ) {
1887                         if ( !$first ) {
1888                                 $s .= wfMsgExt( 'pipe-separator', 'escapenoentities' );
1889                         }
1890                         $first = false;
1891
1892                         $nt = Title::newFromText( $l );
1893                         $url = $nt->escapeFullURL();
1894                         $text = $wgContLang->getLanguageName( $nt->getInterwiki() );
1895
1896                         if ( $text == '' ) {
1897                                 $text = $l;
1898                         }
1899                         $style = $this->getExternalLinkAttributes();
1900                         $s .= "<a href=\"{$url}\"{$style}>{$text}</a>";
1901                 }
1902                 if( $wgContLang->isRTL() ) {
1903                         $s .= '</span>';
1904                 }
1905                 return $s;
1906         }
1907
1908         function talkLink() {
1909                 if ( NS_SPECIAL == $this->mTitle->getNamespace() ) {
1910                         # No discussion links for special pages
1911                         return '';
1912                 }
1913
1914                 $linkOptions = array();
1915
1916                 if( $this->mTitle->isTalkPage() ) {
1917                         $link = $this->mTitle->getSubjectPage();
1918                         switch( $link->getNamespace() ) {
1919                                 case NS_MAIN:
1920                                         $text = wfMsg( 'articlepage' );
1921                                         break;
1922                                 case NS_USER:
1923                                         $text = wfMsg( 'userpage' );
1924                                         break;
1925                                 case NS_PROJECT:
1926                                         $text = wfMsg( 'projectpage' );
1927                                         break;
1928                                 case NS_FILE:
1929                                         $text = wfMsg( 'imagepage' );
1930                                         # Make link known if image exists, even if the desc. page doesn't.
1931                                         if( wfFindFile( $link ) )
1932                                                 $linkOptions[] = 'known';
1933                                         break;
1934                                 case NS_MEDIAWIKI:
1935                                         $text = wfMsg( 'mediawikipage' );
1936                                         break;
1937                                 case NS_TEMPLATE:
1938                                         $text = wfMsg( 'templatepage' );
1939                                         break;
1940                                 case NS_HELP:
1941                                         $text = wfMsg( 'viewhelppage' );
1942                                         break;
1943                                 case NS_CATEGORY:
1944                                         $text = wfMsg( 'categorypage' );
1945                                         break;
1946                                 default:
1947                                         $text = wfMsg( 'articlepage' );
1948                         }
1949                 } else {
1950                         $link = $this->mTitle->getTalkPage();
1951                         $text = wfMsg( 'talkpage' );
1952                 }
1953
1954                 $s = $this->link( $link, $text, array(), array(), $linkOptions );
1955
1956                 return $s;
1957         }
1958
1959         function commentLink() {
1960                 global $wgOut;
1961
1962                 if ( $this->mTitle->getNamespace() == NS_SPECIAL ) {
1963                         return '';
1964                 }
1965
1966                 # __NEWSECTIONLINK___ changes behaviour here
1967                 # If it is present, the link points to this page, otherwise
1968                 # it points to the talk page
1969                 if( $this->mTitle->isTalkPage() ) {
1970                         $title = $this->mTitle;
1971                 } elseif( $wgOut->showNewSectionLink() ) {
1972                         $title = $this->mTitle;
1973                 } else {
1974                         $title = $this->mTitle->getTalkPage();
1975                 }
1976
1977                 return $this->link(
1978                         $title,
1979                         wfMsg( 'postcomment' ),
1980                         array(),
1981                         array(
1982                                 'action' => 'edit',
1983                                 'section' => 'new'
1984                         ),
1985                         array( 'known', 'noclasses' )
1986                 );
1987         }
1988
1989         function uploadLink() {
1990                 global $wgUploadNavigationUrl;
1991
1992                 if( $wgUploadNavigationUrl ) {
1993                         # Using an empty class attribute to avoid automatic setting of "external" class
1994                         return $this->makeExternalLink( $wgUploadNavigationUrl, wfMsgHtml( 'upload' ), false, null, array( 'class' => '') );
1995                 } else {
1996                         return $this->link(
1997                                 SpecialPage::getTitleFor('Upload'),
1998                                 wfMsgHtml( 'upload' ),
1999                                 array(),
2000                                 array(),
2001                                 array( 'known', 'noclasses' )
2002                         );
2003                 }
2004         }
2005
2006         /* these are used extensively in SkinTemplate, but also some other places */
2007         static function makeMainPageUrl( $urlaction = '' ) {
2008                 $title = Title::newMainPage();
2009                 self::checkTitle( $title, '' );
2010                 return $title->getLocalURL( $urlaction );
2011         }
2012
2013         static function makeSpecialUrl( $name, $urlaction = '' ) {
2014                 $title = SpecialPage::getTitleFor( $name );
2015                 return $title->getLocalURL( $urlaction );
2016         }
2017
2018         static function makeSpecialUrlSubpage( $name, $subpage, $urlaction = '' ) {
2019                 $title = SpecialPage::getSafeTitleFor( $name, $subpage );
2020                 return $title->getLocalURL( $urlaction );
2021         }
2022
2023         static function makeI18nUrl( $name, $urlaction = '' ) {
2024                 $title = Title::newFromText( wfMsgForContent( $name ) );
2025                 self::checkTitle( $title, $name );
2026                 return $title->getLocalURL( $urlaction );
2027         }
2028
2029         static function makeUrl( $name, $urlaction = '' ) {
2030                 $title = Title::newFromText( $name );
2031                 self::checkTitle( $title, $name );
2032                 return $title->getLocalURL( $urlaction );
2033         }
2034
2035         /**
2036          * If url string starts with http, consider as external URL, else
2037          * internal
2038          */
2039         static function makeInternalOrExternalUrl( $name ) {
2040                 if ( preg_match( '/^(?:' . wfUrlProtocols() . ')/', $name ) ) {
2041                         return $name;
2042                 } else {
2043                         return self::makeUrl( $name );
2044                 }
2045         }
2046
2047         # this can be passed the NS number as defined in Language.php
2048         static function makeNSUrl( $name, $urlaction = '', $namespace = NS_MAIN ) {
2049                 $title = Title::makeTitleSafe( $namespace, $name );
2050                 self::checkTitle( $title, $name );
2051                 return $title->getLocalURL( $urlaction );
2052         }
2053
2054         /* these return an array with the 'href' and boolean 'exists' */
2055         static function makeUrlDetails( $name, $urlaction = '' ) {
2056                 $title = Title::newFromText( $name );
2057                 self::checkTitle( $title, $name );
2058                 return array(
2059                         'href' => $title->getLocalURL( $urlaction ),
2060                         'exists' => $title->getArticleID() != 0 ? true : false
2061                 );
2062         }
2063
2064         /**
2065          * Make URL details where the article exists (or at least it's convenient to think so)
2066          */
2067         static function makeKnownUrlDetails( $name, $urlaction = '' ) {
2068                 $title = Title::newFromText( $name );
2069                 self::checkTitle( $title, $name );
2070                 return array(
2071                         'href' => $title->getLocalURL( $urlaction ),
2072                         'exists' => true
2073                 );
2074         }
2075
2076         # make sure we have some title to operate on
2077         static function checkTitle( &$title, $name ) {
2078                 if( !is_object( $title ) ) {
2079                         $title = Title::newFromText( $name );
2080                         if( !is_object( $title ) ) {
2081                                 $title = Title::newFromText( '--error: link target missing--' );
2082                         }
2083                 }
2084         }
2085
2086         /**
2087          * Build an array that represents the sidebar(s), the navigation bar among them
2088          *
2089          * @return array
2090          */
2091         function buildSidebar() {
2092                 global $parserMemc, $wgEnableSidebarCache, $wgSidebarCacheExpiry;
2093                 global $wgLang;
2094                 wfProfileIn( __METHOD__ );
2095
2096                 $key = wfMemcKey( 'sidebar', $wgLang->getCode() );
2097
2098                 if ( $wgEnableSidebarCache ) {
2099                         $cachedsidebar = $parserMemc->get( $key );
2100                         if ( $cachedsidebar ) {
2101                                 wfProfileOut( __METHOD__ );
2102                                 return $cachedsidebar;
2103                         }
2104                 }
2105
2106                 $bar = array();
2107                 $this->addToSidebar( $bar, wfMsgForContentNoTrans( 'sidebar' ) );
2108
2109                 wfRunHooks( 'SkinBuildSidebar', array( $this, &$bar ) );
2110                 if ( $wgEnableSidebarCache ) {
2111                         $parserMemc->set( $key, $bar, $wgSidebarCacheExpiry );
2112                 }
2113                 wfProfileOut( __METHOD__ );
2114                 return $bar;
2115         }
2116
2117         /**
2118          * Add content to the sidebar from text
2119          * @since 1.16
2120          * @param &$bar array
2121          * @param $text string
2122          *
2123          * @return array
2124          */
2125         function addToSidebar( &$bar, $text ) {
2126                 $lines = explode( "\n", $text );
2127                 $wikiBar = array(); # We need to handle the wikitext on a different variable, to avoid trying to do an array operation on text, which would be a fatal error.
2128
2129                 $heading = '';
2130                 foreach( $lines as $line ) {
2131                         if( strpos( $line, '*' ) !== 0 ) {
2132                                 continue;
2133                         }
2134                         if( strpos( $line, '**') !== 0 ) {
2135                                 $heading = trim( $line, '* ' );
2136                                 if( !array_key_exists( $heading, $bar ) ) {
2137                                         $bar[$heading] = array();
2138                                 }
2139                         } else {
2140                                 $line = trim( $line, '* ' );
2141                                 if( strpos( $line, '|' ) !== false ) { // sanity check
2142                                         global $wgMessageCache;
2143                                         $line = $wgMessageCache->transform( $line );
2144
2145                                         $line = array_map( 'trim', explode( '|', $line, 2 ) );
2146                                         $link = wfMsgForContent( $line[0] );
2147                                         if( $link == '-' ) {
2148                                                 continue;
2149                                         }
2150
2151                                         $text = wfMsgExt( $line[1], 'parsemag' );
2152                                         if( wfEmptyMsg( $line[1], $text ) ) {
2153                                                 $text = $line[1];
2154                                         }
2155                                         if( wfEmptyMsg( $line[0], $link ) ) {
2156                                                 $link = $line[0];
2157                                         }
2158
2159                                         if ( preg_match( '/^(?:' . wfUrlProtocols() . ')/', $link ) ) {
2160                                                 $href = $link;
2161                                         } else {
2162                                                 $title = Title::newFromText( $link );
2163                                                 if ( $title ) {
2164                                                         $title = $title->fixSpecialName();
2165                                                         $href = $title->getLocalURL();
2166                                                 } else {
2167                                                         $href = 'INVALID-TITLE';
2168                                                 }
2169                                         }
2170
2171                                         $bar[$heading][] = array(
2172                                                 'text' => $text,
2173                                                 'href' => $href,
2174                                                 'id' => 'n-' . strtr( $line[1], ' ', '-' ),
2175                                                 'active' => false
2176                                         );
2177                                 } else if ( (substr($line, 0, 2) == '{{') && (substr($line, -2) == '}}') ) {
2178                                         global $wgParser, $wgTitle;
2179
2180                                         $line = substr($line, 2, strlen($line) - 4 );
2181
2182                                         if (is_null($wgParser->mOptions))
2183                                                 $wgParser->mOptions = new ParserOptions();
2184
2185                                         $wgParser->mOptions->setEditSection(false);
2186                                         $wikiBar[$heading] = $wgParser->parse( wfMsgForContentNoTrans( $line ) , $wgTitle, $wgParser->mOptions )->getText();
2187                                 } else {
2188                                         continue;
2189                                 }
2190                         }
2191                 }
2192
2193                 if ( count($wikiBar) > 0 )
2194                         $bar = array_merge($bar, $wikiBar);
2195
2196                 return $bar;
2197         }
2198
2199         /**
2200          * Should we include common/wikiprintable.css?  Skins that have their own
2201          * print stylesheet should override this and return false.  (This is an
2202          * ugly hack to get Monobook to play nicely with
2203          * OutputPage::headElement().)
2204          *
2205          * @return bool
2206          */
2207         public function commonPrintStylesheet() {
2208                 return true;
2209         }
2210
2211         /**
2212          * Gets new talk page messages for the current user.
2213          * @return MediaWiki message or if no new talk page messages, nothing
2214          */
2215         function getNewtalks() {
2216                 global $wgUser, $wgOut;
2217                 $newtalks = $wgUser->getNewMessageLinks();
2218                 $ntl = '';
2219
2220                 if( count( $newtalks ) == 1 && $newtalks[0]['wiki'] === wfWikiID() ) {
2221                         $userTitle = $this->mUser->getUserPage();
2222                         $userTalkTitle = $userTitle->getTalkPage();
2223
2224                         if( !$userTalkTitle->equals( $this->mTitle ) ) {
2225                                 $newMessagesLink = $this->link(
2226                                         $userTalkTitle,
2227                                         wfMsgHtml( 'newmessageslink' ),
2228                                         array(),
2229                                         array( 'redirect' => 'no' ),
2230                                         array( 'known', 'noclasses' )
2231                                 );
2232
2233                                 $newMessagesDiffLink = $this->link(
2234                                         $userTalkTitle,
2235                                         wfMsgHtml( 'newmessagesdifflink' ),
2236                                         array(),
2237                                         array( 'diff' => 'cur' ),
2238                                         array( 'known', 'noclasses' )
2239                                 );
2240
2241                                 $ntl = wfMsg(
2242                                         'youhavenewmessages',
2243                                         $newMessagesLink,
2244                                         $newMessagesDiffLink
2245                                 );
2246                                 # Disable Squid cache
2247                                 $wgOut->setSquidMaxage( 0 );
2248                         }
2249                 } elseif( count( $newtalks ) ) {
2250                         // _>" " for BC <= 1.16
2251                         $sep = str_replace( '_', ' ', wfMsgHtml( 'newtalkseparator' ) );
2252                         $msgs = array();
2253                         foreach( $newtalks as $newtalk ) {
2254                                 $msgs[] = Xml::element(
2255                                         'a',
2256                                         array( 'href' => $newtalk['link'] ), $newtalk['wiki']
2257                                 );
2258                         }
2259                         $parts = implode( $sep, $msgs );
2260                         $ntl = wfMsgHtml( 'youhavenewmessagesmulti', $parts );
2261                         $wgOut->setSquidMaxage( 0 );
2262                 }
2263                 return $ntl;
2264         }
2265
2266 }