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 if( isset( $skinNames[$wgDefaultSkin] ) ) {
 119                         return $wgDefaultSkin;
 120                 } else {
 121                         return 'vector';
 122                 }
 123         }
 124
 125         /**
 126          * Factory method for loading a skin of a given type
 127          * @param $key String: 'monobook', 'standard', etc.
 128          * @return Skin
 129          */
 130         static function &newFromKey( $key ) {
 131                 global $wgStyleDirectory;
 132
 133                 $key = Skin::normalizeKey( $key );
 134
 135                 $skinNames = Skin::getSkinNames();
 136                 $skinName = $skinNames[$key];
 137                 $className = 'Skin' . ucfirst( $key );
 138
 139                 # Grab the skin class and initialise it.
 140                 if ( !class_exists( $className ) ) {
 141                         // Preload base classes to work around APC/PHP5 bug
 142                         $deps = "{$wgStyleDirectory}/{$skinName}.deps.php";
 143                         if( file_exists( $deps ) ) {
 144                                 include_once( $deps );
 145                         }
 146                         require_once( "{$wgStyleDirectory}/{$skinName}.php" );
 147
 148                         # Check if we got if not failback to default skin
 149                         if( !class_exists( $className ) ) {
 150                                 # DO NOT die if the class isn't found. This breaks maintenance
 151                                 # scripts and can cause a user account to be unrecoverable
 152                                 # except by SQL manipulation if a previously valid skin name
 153                                 # is no longer valid.
 154                                 wfDebug( "Skin class does not exist: $className\n" );
 155                                 $className = 'SkinVector';
 156                                 require_once( "{$wgStyleDirectory}/Vector.php" );
 157                         }
 158                 }
 159                 $skin = new $className;
 160                 return $skin;
 161         }
 162
 163         /** @return string path to the skin stylesheet */
 164         function getStylesheet() {
 165                 return 'common/wikistandard.css';
 166         }
 167
 168         /** @return string skin name */
 169         public function getSkinName() {
 170                 return $this->skinname;
 171         }
 172
 173         function qbSetting() {
 174                 global $wgOut, $wgUser;
 175
 176                 if ( $wgOut->isQuickbarSuppressed() ) {
 177                         return 0;
 178                 }
 179                 $q = $wgUser->getOption( 'quickbar', 0 );
 180                 return $q;
 181         }
 182
 183         function initPage( OutputPage $out ) {
 184                 global $wgFavicon, $wgAppleTouchIcon;
 185
 186                 wfProfileIn( __METHOD__ );
 187
 188                 # Generally the order of the favicon and apple-touch-icon links
 189                 # should not matter, but Konqueror (3.5.9 at least) incorrectly
 190                 # uses whichever one appears later in the HTML source. Make sure
 191                 # apple-touch-icon is specified first to avoid this.
 192                 if( false !== $wgAppleTouchIcon ) {
 193                         $out->addLink( array( 'rel' => 'apple-touch-icon', 'href' => $wgAppleTouchIcon ) );
 194                 }
 195
 196                 if( false !== $wgFavicon ) {
 197                         $out->addLink( array( 'rel' => 'shortcut icon', 'href' => $wgFavicon ) );
 198                 }
 199
 200                 # OpenSearch description link
 201                 $out->addLink( array(
 202                         'rel' => 'search',
 203                         'type' => 'application/opensearchdescription+xml',
 204                         'href' => wfScript( 'opensearch_desc' ),
 205                         'title' => wfMsgForContent( 'opensearch-desc' ),
 206                 ));
 207
 208                 $this->addMetadataLinks( $out );
 209
 210                 $this->mRevisionId = $out->mRevisionId;
 211
 212                 $this->preloadExistence();
 213
 214                 wfProfileOut( __METHOD__ );
 215         }
 216
 217         /**
 218          * Preload the existence of three commonly-requested pages in a single query
 219          */
 220         function preloadExistence() {
 221                 global $wgUser;
 222
 223                 // User/talk link
 224                 $titles = array( $wgUser->getUserPage(), $wgUser->getTalkPage() );
 225
 226                 // Other tab link
 227                 if ( $this->mTitle->getNamespace() == NS_SPECIAL ) {
 228                         // nothing
 229                 } elseif ( $this->mTitle->isTalkPage() ) {
 230                         $titles[] = $this->mTitle->getSubjectPage();
 231                 } else {
 232                         $titles[] = $this->mTitle->getTalkPage();
 233                 }
 234
 235                 $lb = new LinkBatch( $titles );
 236                 $lb->execute();
 237         }
 238
 239         /**
 240          * Adds metadata links (Creative Commons/Dublin Core/copyright) to the HTML
 241          * output.
 242          * @param $out Object: instance of OutputPage
 243          */
 244         function addMetadataLinks( OutputPage $out ) {
 245                 global $wgEnableDublinCoreRdf, $wgEnableCreativeCommonsRdf;
 246                 global $wgRightsPage, $wgRightsUrl;
 247
 248                 if( $out->isArticleRelated() ) {
 249                         # note: buggy CC software only reads first "meta" link
 250                         if( $wgEnableCreativeCommonsRdf ) {
 251                                 $out->addMetadataLink( array(
 252                                         'title' => 'Creative Commons',
 253                                         'type' => 'application/rdf+xml',
 254                                         'href' => $this->mTitle->getLocalURL( 'action=creativecommons' ) )
 255                                 );
 256                         }
 257                         if( $wgEnableDublinCoreRdf ) {
 258                                 $out->addMetadataLink( array(
 259                                         'title' => 'Dublin Core',
 260                                         'type' => 'application/rdf+xml',
 261                                         'href' => $this->mTitle->getLocalURL( 'action=dublincore' ) )
 262                                 );
 263                         }
 264                 }
 265                 $copyright = '';
 266                 if( $wgRightsPage ) {
 267                         $copy = Title::newFromText( $wgRightsPage );
 268                         if( $copy ) {
 269                                 $copyright = $copy->getLocalURL();
 270                         }
 271                 }
 272                 if( !$copyright && $wgRightsUrl ) {
 273                         $copyright = $wgRightsUrl;
 274                 }
 275                 if( $copyright ) {
 276                         $out->addLink( array(
 277                                 'rel' => 'copyright',
 278                                 'href' => $copyright )
 279                         );
 280                 }
 281         }
 282
 283         /**
 284          * Set some local variables
 285          */
 286         protected function setMembers() {
 287                 global $wgUser;
 288                 $this->mUser = $wgUser;
 289                 $this->userpage = $wgUser->getUserPage()->getPrefixedText();
 290                 $this->usercss = false;
 291         }
 292
 293         /**
 294          * Set the title
 295          * @param $t Title object to use
 296          */
 297         public function setTitle( $t ) {
 298                 $this->mTitle = $t;
 299         }
 300
 301         /** Get the title */
 302         public function getTitle() {
 303                 return $this->mTitle;
 304         }
 305
 306         /**
 307          * Outputs the HTML generated by other functions.
 308          * @param $out Object: instance of OutputPage
 309          */
 310         function outputPage( OutputPage $out ) {
 311                 global $wgDebugComments;
 312                 wfProfileIn( __METHOD__ );
 313
 314                 $this->setMembers();
 315                 $this->initPage( $out );
 316
 317                 // See self::afterContentHook() for documentation
 318                 $afterContent = $this->afterContentHook();
 319
 320                 $out->out( $out->headElement( $this ) );
 321
 322                 if ( $wgDebugComments ) {
 323                         $out->out( "<!-- Wiki debugging output:\n" .
 324                           $out->mDebugtext . "-->\n" );
 325                 }
 326
 327                 $out->out( $this->beforeContent() );
 328
 329                 $out->out( $out->mBodytext . "\n" );
 330
 331                 $out->out( $this->afterContent() );
 332
 333                 $out->out( $afterContent );
 334
 335                 $out->out( $this->bottomScripts( $out ) );
 336
 337                 $out->out( wfReportTime() );
 338
 339                 $out->out( "\n</body></html>" );
 340                 wfProfileOut( __METHOD__ );
 341         }
 342
 343         static function makeVariablesScript( $data ) {
 344                 if( $data ) {
 345                         return Html::inlineScript( 'mediaWiki.config.set(' . json_encode( $data ) . ');' );
 346                 } else {
 347                         return '';
 348                 }
 349         }
 350
 351         /**
 352          * Make a <script> tag containing global variables
 353          * @param $skinName string Name of the skin
 354          * The odd calling convention is for backwards compatibility
 355          * @todo FIXME: Make this not depend on $wgTitle!
 356          */
 357         static function makeGlobalVariablesScript( $skinName ) {
 358                 if ( is_array( $skinName ) ) {
 359                         # Weird back-compat stuff.
 360                         $skinName = $skinName['skinname'];
 361                 }
 362                 global $wgScript, $wgTitle, $wgStylePath, $wgUser, $wgScriptExtension;
 363                 global $wgArticlePath, $wgScriptPath, $wgServer, $wgContLang, $wgLang;
 364                 global $wgOut, $wgArticle;
 365                 global $wgBreakFrames, $wgRequest, $wgVariantArticlePath, $wgActionPaths;
 366                 global $wgUseAjax, $wgAjaxWatch;
 367                 global $wgVersion, $wgEnableAPI, $wgEnableWriteAPI;
 368                 global $wgRestrictionTypes;
 369                 global $wgDBname, $wgEnableMWSuggest;
 370                 global $wgSitename;
 371
 372                 $ns = $wgTitle->getNamespace();
 373                 $nsname = MWNamespace::exists( $ns ) ? MWNamespace::getCanonicalName( $ns ) : $wgTitle->getNsText();
 374                 $separatorTransTable = $wgContLang->separatorTransformTable();
 375                 $separatorTransTable = $separatorTransTable ? $separatorTransTable : array();
 376                 $compactSeparatorTransTable = array(
 377                         implode( "\t", array_keys( $separatorTransTable ) ),
 378                         implode( "\t", $separatorTransTable ),
 379                 );
 380                 $digitTransTable = $wgContLang->digitTransformTable();
 381                 $digitTransTable = $digitTransTable ? $digitTransTable : array();
 382                 $compactDigitTransTable = array(
 383                         implode( "\t", array_keys( $digitTransTable ) ),
 384                         implode( "\t", $digitTransTable ),
 385                 );
 386
 387                 $mainPage = Title::newMainPage();
 388                 $vars = array(
 389                         'skin' => $skinName,
 390                         'stylepath' => $wgStylePath,
 391                         'wgUrlProtocols' => wfUrlProtocols(),
 392                         'wgArticlePath' => $wgArticlePath,
 393                         'wgScriptPath' => $wgScriptPath,
 394                         'wgScriptExtension' => $wgScriptExtension,
 395                         'wgScript' => $wgScript,
 396                         'wgVariantArticlePath' => $wgVariantArticlePath,
 397                         'wgActionPaths' => (object)$wgActionPaths,
 398                         'wgServer' => $wgServer,
 399                         'wgCanonicalNamespace' => $nsname,
 400                         'wgCanonicalSpecialPageName' => $ns == NS_SPECIAL ?
 401                                 SpecialPage::resolveAlias( $wgTitle->getDBkey() ) : false, # bug 21115
 402                         'wgNamespaceNumber' => $wgTitle->getNamespace(),
 403                         'wgPageName' => $wgTitle->getPrefixedDBKey(),
 404                         'wgTitle' => $wgTitle->getText(),
 405                         'wgAction' => $wgRequest->getText( 'action', 'view' ),
 406                         'wgArticleId' => $wgTitle->getArticleId(),
 407                         'wgIsArticle' => $wgOut->isArticle(),
 408                         'wgUserName' => $wgUser->isAnon() ? null : $wgUser->getName(),
 409                         'wgUserGroups' => $wgUser->getEffectiveGroups(),
 410                         'wgUserLanguage' => $wgLang->getCode(),
 411                         'wgContentLanguage' => $wgContLang->getCode(),
 412                         'wgBreakFrames' => $wgBreakFrames,
 413                         'wgCurRevisionId' => isset( $wgArticle ) ? $wgArticle->getLatest() : 0,
 414                         'wgVersion' => $wgVersion,
 415                         'wgEnableAPI' => $wgEnableAPI,
 416                         'wgEnableWriteAPI' => $wgEnableWriteAPI,
 417                         'wgSeparatorTransformTable' => $compactSeparatorTransTable,
 418                         'wgDigitTransformTable' => $compactDigitTransTable,
 419                         'wgMainPageTitle' => $mainPage ? $mainPage->getPrefixedText() : null,
 420                         'wgFormattedNamespaces' => $wgContLang->getFormattedNamespaces(),
 421                         'wgNamespaceIds' => $wgContLang->getNamespaceIds(),
 422                         'wgSiteName' => $wgSitename,
 423                         'wgCategories' => $wgOut->getCategories(),
 424                 );
 425                 if ( $wgContLang->hasVariants() ) {
 426                         $vars['wgUserVariant'] = $wgContLang->getPreferredVariant();
 427                 }
 428
 429                 // if on upload page output the extension list & js_upload
 430                 if( SpecialPage::resolveAlias( $wgTitle->getDBkey() ) == 'Upload' ) {
 431                         global $wgFileExtensions;
 432                         $vars['wgFileExtensions'] = $wgFileExtensions;
 433                 }
 434
 435                 if( $wgUseAjax && $wgEnableMWSuggest && !$wgUser->getOption( 'disablesuggest', false ) ) {
 436                         $vars['wgMWSuggestTemplate'] = SearchEngine::getMWSuggestTemplate();
 437                         $vars['wgDBname'] = $wgDBname;
 438                         $vars['wgSearchNamespaces'] = SearchEngine::userNamespaces( $wgUser );
 439                         $vars['wgMWSuggestMessages'] = array( wfMsg( 'search-mwsuggest-enabled' ), wfMsg( 'search-mwsuggest-disabled' ) );
 440                 }
 441
 442                 foreach( $wgRestrictionTypes as $type ) {
 443                         $vars['wgRestriction' . ucfirst( $type )] = $wgTitle->getRestrictions( $type );
 444                 }
 445
 446                 if ( $wgOut->isArticleRelated() && $wgUseAjax && $wgAjaxWatch && $wgUser->isLoggedIn() ) {
 447                         $msgs = (object)array();
 448                         foreach ( array( 'watch', 'unwatch', 'watching', 'unwatching',
 449                                 'tooltip-ca-watch', 'tooltip-ca-unwatch' ) as $msgName ) {
 450                                 $msgs->{$msgName . 'Msg'} = wfMsg( $msgName );
 451                         }
 452                         $vars['wgAjaxWatch'] = $msgs;
 453                 }
 454
 455                 // Allow extensions to add their custom variables to the global JS variables
 456                 wfRunHooks( 'MakeGlobalVariablesScript', array( &$vars ) );
 457
 458                 return self::makeVariablesScript( $vars );
 459         }
 460
 461         /**
 462          * To make it harder for someone to slip a user a fake
 463          * user-JavaScript or user-CSS preview, a random token
 464          * is associated with the login session. If it's not
 465          * passed back with the preview request, we won't render
 466          * the code.
 467          *
 468          * @param $action String: 'edit', 'submit' etc.
 469          * @return bool
 470          */
 471         public function userCanPreview( $action ) {
 472                 global $wgRequest, $wgUser;
 473
 474                 if( $action != 'submit' ) {
 475                         return false;
 476                 }
 477                 if( !$wgRequest->wasPosted() ) {
 478                         return false;
 479                 }
 480                 if( !$this->mTitle->userCanEditCssSubpage() ) {
 481                         return false;
 482                 }
 483                 if( !$this->mTitle->userCanEditJsSubpage() ) {
 484                         return false;
 485                 }
 486                 return $wgUser->matchEditToken(
 487                         $wgRequest->getVal( 'wpEditToken' ) );
 488         }
 489
 490         /**
 491          * Generated JavaScript action=raw&gen=js
 492          * This returns MediaWiki:Common.js and MediaWiki:[Skinname].js concate-
 493          * nated together.  For some bizarre reason, it does *not* return any
 494          * custom user JS from subpages.  Huh?
 495          *
 496          * There's absolutely no reason to have separate Monobook/Common JSes.
 497          * Any JS that cares can just check the skin variable generated at the
 498          * top.  For now Monobook.js will be maintained, but it should be consi-
 499          * dered deprecated.
 500          *
 501          * @param $skinName String: If set, overrides the skin name
 502          * @return string
 503          */
 504         public function generateUserJs( $skinName = null ) {
 505                 global $wgStylePath;
 506
 507                 wfProfileIn( __METHOD__ );
 508                 if( !$skinName ) {
 509                         $skinName = $this->getSkinName();
 510                 }
 511
 512                 $s = "/* generated javascript */\n";
 513                 $s .= "var skin = '" . Xml::escapeJsString( $skinName ) . "';\n";
 514                 $s .= "var stylepath = '" . Xml::escapeJsString( $wgStylePath ) . "';";
 515                 $s .= "\n\n/* MediaWiki:Common.js */\n";
 516                 $commonJs = wfMsgExt( 'common.js', 'content' );
 517                 if ( !wfEmptyMsg( 'common.js', $commonJs ) ) {
 518                         $s .= $commonJs;
 519                 }
 520
 521                 $s .= "\n\n/* MediaWiki:" . ucfirst( $skinName ) . ".js */\n";
 522                 // avoid inclusion of non defined user JavaScript (with custom skins only)
 523                 // by checking for default message content
 524                 $msgKey = ucfirst( $skinName ) . '.js';
 525                 $userJS = wfMsgExt( $msgKey, 'content' );
 526                 if ( !wfEmptyMsg( $msgKey, $userJS ) ) {
 527                         $s .= $userJS;
 528                 }
 529
 530                 wfProfileOut( __METHOD__ );
 531                 return $s;
 532         }
 533
 534         /**
 535          * Generate user stylesheet for action=raw&gen=css
 536          */
 537         public function generateUserStylesheet() {
 538                 wfProfileIn( __METHOD__ );
 539                 $s = "/* generated user stylesheet */\n" .
 540                         $this->reallyGenerateUserStylesheet();
 541                 wfProfileOut( __METHOD__ );
 542                 return $s;
 543         }
 544
 545         /**
 546          * Split for easier subclassing in SkinSimple, SkinStandard and SkinCologneBlue
 547          * Anything in here won't be generated if $wgAllowUserCssPrefs is false.
 548          */
 549         protected function reallyGenerateUserStylesheet() {
 550                 global $wgUser;
 551                 $s = '';
 552                 if( ( $undopt = $wgUser->getOption( 'underline' ) ) < 2 ) {
 553                         $underline = $undopt ? 'underline' : 'none';
 554                         $s .= "a { text-decoration: $underline; }\n";
 555                 }
 556                 if( $wgUser->getOption( 'highlightbroken' ) ) {
 557                         $s .= "a.new, #quickbar a.new { color: #CC2200; }\n";
 558                 } else {
 559                         $s .= <<<CSS
 560 a.new, #quickbar a.new,
 561 a.stub, #quickbar a.stub {
 562         color: inherit;
 563 }
 564 a.new:after, #quickbar a.new:after {
 565         content: "?";
 566         color: #CC2200;
 567 }
 568 a.stub:after, #quickbar a.stub:after {
 569         content: "!";
 570         color: #772233;
 571 }
 572 CSS;
 573                 }
 574                 if( $wgUser->getOption( 'justify' ) ) {
 575                         $s .= "#article, #bodyContent, #mw_content { text-align: justify; }\n";
 576                 }
 577                 if( !$wgUser->getOption( 'showtoc' ) ) {
 578                         $s .= "#toc { display: none; }\n";
 579                 }
 580                 if( !$wgUser->getOption( 'editsection' ) ) {
 581                         $s .= ".editsection { display: none; }\n";
 582                 }
 583                 $fontstyle = $wgUser->getOption( 'editfont' );
 584                 if ( $fontstyle !== 'default' ) {
 585                         $s .= "textarea { font-family: $fontstyle; }\n";
 586                 }
 587                 return $s;
 588         }
 589
 590         /**
 591          * @private
 592          */
 593         function setupUserCss( OutputPage $out ) {
 594                 global $wgRequest, $wgUser;
 595                 global $wgAllowUserCss, $wgUseSiteCss, $wgSquidMaxage;
 596
 597                 wfProfileIn( __METHOD__ );
 598
 599                 $this->setupSkinUserCss( $out );
 600
 601                 $siteargs = array(
 602                         'action' => 'raw',
 603                         'maxage' => $wgSquidMaxage,
 604                 );
 605
 606                 // Add any extension CSS
 607                 foreach ( $out->getExtStyle() as $url ) {
 608                         $out->addStyle( $url );
 609                 }
 610
 611                 // If we use the site's dynamic CSS, throw that in, too
 612                 // Per-site custom styles
 613                 if( $wgUseSiteCss ) {
 614                         global $wgHandheldStyle;
 615                         $query = wfArrayToCGI( self::getDynamicStylesheetQuery() );
 616                         # Site settings must override extension css! (bug 15025)
 617                         $out->addStyle( self::makeNSUrl( 'Common.css', $query, NS_MEDIAWIKI ) );
 618                         $out->addStyle( self::makeNSUrl( 'Print.css', $query, NS_MEDIAWIKI ), 'print' );
 619                         if( $wgHandheldStyle ) {
 620                                 $out->addStyle( self::makeNSUrl( 'Handheld.css', $query, NS_MEDIAWIKI ), 'handheld' );
 621                         }
 622                         $out->addStyle( self::makeNSUrl( $this->getSkinName() . '.css', $query, NS_MEDIAWIKI ) );
 623                 }
 624
 625                 global $wgAllowUserCssPrefs;
 626                 if( $wgAllowUserCssPrefs ){
 627                         if( $wgUser->isLoggedIn() ) {
 628                                 // Ensure that logged-in users' generated CSS isn't clobbered
 629                                 // by anons' publicly cacheable generated CSS.
 630                                 $siteargs['smaxage'] = '0';
 631                                 $siteargs['ts'] = $wgUser->mTouched;
 632                         }
 633                         // Per-user styles based on preferences
 634                         $siteargs['gen'] = 'css';
 635                         if( ( $us = $wgRequest->getVal( 'useskin', '' ) ) !== '' ) {
 636                                 $siteargs['useskin'] = $us;
 637                         }
 638                         $out->addStyle( self::makeUrl( '-', wfArrayToCGI( $siteargs ) ) );
 639                 }
 640
 641                 // Per-user custom style pages
 642                 if( $wgAllowUserCss && $wgUser->isLoggedIn() ) {
 643                         $action = $wgRequest->getVal( 'action' );
 644                         # If we're previewing the CSS page, use it
 645                         if( $this->mTitle->isCssSubpage() && $this->userCanPreview( $action ) ) {
 646                                 // @FIXME: properly escape the cdata!
 647                                 $out->addInlineStyle( $wgRequest->getText( 'wpTextbox1' ) );
 648                         } else {
 649                                 $names = array( 'common', $this->getSkinName() );
 650                                 foreach( $names as $name ) {
 651                                         $out->addStyle( self::makeUrl(
 652                                                 $this->userpage . '/' . $name . '.css',
 653                                                 'action=raw&ctype=text/css' )
 654                                         );
 655                                 }
 656                         }
 657                 }
 658
 659                 wfProfileOut( __METHOD__ );
 660         }
 661
 662         /**
 663          * Get the query to generate a dynamic stylesheet
 664          *
 665          * @return array
 666          */
 667         public static function getDynamicStylesheetQuery() {
 668                 global $wgSquidMaxage;
 669                 return array(
 670                                 'action' => 'raw',
 671                                 'maxage' => $wgSquidMaxage,
 672                                 'usemsgcache' => 'yes',
 673                                 'ctype' => 'text/css',
 674                                 'smaxage' => $wgSquidMaxage,
 675                         );
 676         }
 677
 678         /**
 679          * Add skin specific stylesheets
 680          * @param $out OutputPage
 681          */
 682         function setupSkinUserCss( OutputPage $out ) {
 683                 // This includes the shared.js and oldshared.js files from skins/common/
 684                 $out->addModuleStyles( 'mediawiki.legacy.shared' );
 685                 // TODO: Figure out how to best integrate this stuff into ResourceLoader
 686                 $out->addStyle( $this->getStylesheet() );
 687                 $out->addStyle( 'common/common_rtl.css', '', '', 'rtl' );
 688         }
 689
 690         function getPageClasses( $title ) {
 691                 $numeric = 'ns-' . $title->getNamespace();
 692                 if( $title->getNamespace() == NS_SPECIAL ) {
 693                         $type = 'ns-special';
 694                 } elseif( $title->isTalkPage() ) {
 695                         $type = 'ns-talk';
 696                 } else {
 697                         $type = 'ns-subject';
 698                 }
 699                 $name = Sanitizer::escapeClass( 'page-' . $title->getPrefixedText() );
 700                 return "$numeric $type $name";
 701         }
 702
 703         /**
 704          * URL to the logo
 705          */
 706         function getLogo() {
 707                 global $wgLogo;
 708                 return $wgLogo;
 709         }
 710
 711         /**
 712          * This will be called immediately after the <body> tag.  Split into
 713          * two functions to make it easier to subclass.
 714          */
 715         function beforeContent() {
 716                 return $this->doBeforeContent();
 717         }
 718
 719         function doBeforeContent() {
 720                 global $wgContLang;
 721                 wfProfileIn( __METHOD__ );
 722
 723                 $s = '';
 724                 $qb = $this->qbSetting();
 725
 726                 $langlinks = $this->otherLanguages();
 727                 if( $langlinks ) {
 728                         $rows = 2;
 729                         $borderhack = '';
 730                 } else {
 731                         $rows = 1;
 732                         $langlinks = false;
 733                         $borderhack = 'class="top"';
 734                 }
 735
 736                 $s .= "\n<div id='content'>\n<div id='topbar'>\n" .
 737                   "<table border='0' cellspacing='0' width='98%'>\n<tr>\n";
 738
 739                 $shove = ( $qb != 0 );
 740                 $left = ( $qb == 1 || $qb == 3 );
 741                 if( $wgContLang->isRTL() ) {
 742                         $left = !$left;
 743                 }
 744
 745                 if( !$shove ) {
 746                         $s .= "<td class='top' align='left' valign='top' rowspan='{$rows}'>\n" .
 747                                 $this->logoText() . '</td>';
 748                 } elseif( $left ) {
 749                         $s .= $this->getQuickbarCompensator( $rows );
 750                 }
 751                 $l = $wgContLang->alignStart();
 752                 $s .= "<td {$borderhack} align='$l' valign='top'>\n";
 753
 754                 $s .= $this->topLinks();
 755                 $s .= '<p class="subtitle">' . $this->pageTitleLinks() . "</p>\n";
 756
 757                 $r = $wgContLang->alignEnd();
 758                 $s .= "</td>\n<td {$borderhack} valign='top' align='$r' nowrap='nowrap'>";
 759                 $s .= $this->nameAndLogin();
 760                 $s .= "\n<br />" . $this->searchForm() . '</td>';
 761
 762                 if ( $langlinks ) {
 763                         $s .= "</tr>\n<tr>\n<td class='top' colspan=\"2\">$langlinks</td>\n";
 764                 }
 765
 766                 if ( $shove && !$left ) { # Right
 767                         $s .= $this->getQuickbarCompensator( $rows );
 768                 }
 769                 $s .= "</tr>\n</table>\n</div>\n";
 770                 $s .= "\n<div id='article'>\n";
 771
 772                 $notice = wfGetSiteNotice();
 773                 if( $notice ) {
 774                         $s .= "\n<div id='siteNotice'>$notice</div>\n";
 775                 }
 776                 $s .= $this->pageTitle();
 777                 $s .= $this->pageSubtitle();
 778                 $s .= $this->getCategories();
 779                 wfProfileOut( __METHOD__ );
 780                 return $s;
 781         }
 782
 783         function getCategoryLinks() {
 784                 global $wgOut, $wgUseCategoryBrowser;
 785                 global $wgContLang, $wgUser;
 786
 787                 if( count( $wgOut->mCategoryLinks ) == 0 ) {
 788                         return '';
 789                 }
 790
 791                 # Separator
 792                 $sep = wfMsgExt( 'catseparator', array( 'parsemag', 'escapenoentities' ) );
 793
 794                 // Use Unicode bidi embedding override characters,
 795                 // to make sure links don't smash each other up in ugly ways.
 796                 $dir = $wgContLang->getDir();
 797                 $embed = "<span dir='$dir'>";
 798                 $pop = '</span>';
 799
 800                 $allCats = $wgOut->getCategoryLinks();
 801                 $s = '';
 802                 $colon = wfMsgExt( 'colon-separator', 'escapenoentities' );
 803                 if ( !empty( $allCats['normal'] ) ) {
 804                         $t = $embed . implode( "{$pop} {$sep} {$embed}" , $allCats['normal'] ) . $pop;
 805
 806                         $msg = wfMsgExt( 'pagecategories', array( 'parsemag', 'escapenoentities' ), count( $allCats['normal'] ) );
 807                         $s .= '<div id="mw-normal-catlinks">' .
 808                                 $this->link( Title::newFromText( wfMsgForContent( 'pagecategorieslink' ) ), $msg )
 809                                 . $colon . $t . '</div>';
 810                 }
 811
 812                 # Hidden categories
 813                 if ( isset( $allCats['hidden'] ) ) {
 814                         if ( $wgUser->getBoolOption( 'showhiddencats' ) ) {
 815                                 $class ='mw-hidden-cats-user-shown';
 816                         } elseif ( $this->mTitle->getNamespace() == NS_CATEGORY ) {
 817                                 $class = 'mw-hidden-cats-ns-shown';
 818                         } else {
 819                                 $class = 'mw-hidden-cats-hidden';
 820                         }
 821                         $s .= "<div id=\"mw-hidden-catlinks\" class=\"$class\">" .
 822                                 wfMsgExt( 'hidden-categories', array( 'parsemag', 'escapenoentities' ), count( $allCats['hidden'] ) ) .
 823                                 $colon . $embed . implode( "$pop $sep $embed", $allCats['hidden'] ) . $pop .
 824                                 '</div>';
 825                 }
 826
 827                 # optional 'dmoz-like' category browser. Will be shown under the list
 828                 # of categories an article belong to
 829                 if( $wgUseCategoryBrowser ) {
 830                         $s .= '<br /><hr />';
 831
 832                         # get a big array of the parents tree
 833                         $parenttree = $this->mTitle->getParentCategoryTree();
 834                         # Skin object passed by reference cause it can not be
 835                         # accessed under the method subfunction drawCategoryBrowser
 836                         $tempout = explode( "\n", $this->drawCategoryBrowser( $parenttree, $this ) );
 837                         # Clean out bogus first entry and sort them
 838                         unset( $tempout[0] );
 839                         asort( $tempout );
 840                         # Output one per line
 841                         $s .= implode( "<br />\n", $tempout );
 842                 }
 843
 844                 return $s;
 845         }
 846
 847         /**
 848          * Render the array as a serie of links.
 849          * @param $tree Array: categories tree returned by Title::getParentCategoryTree
 850          * @param &skin Object: skin passed by reference
 851          * @return String separated by &gt;, terminate with "\n"
 852          */
 853         function drawCategoryBrowser( $tree, &$skin ) {
 854                 $return = '';
 855                 foreach( $tree as $element => $parent ) {
 856                         if( empty( $parent ) ) {
 857                                 # element start a new list
 858                                 $return .= "\n";
 859                         } else {
 860                                 # grab the others elements
 861                                 $return .= $this->drawCategoryBrowser( $parent, $skin ) . ' &gt; ';
 862                         }
 863                         # add our current element to the list
 864                         $eltitle = Title::newFromText( $element );
 865                         $return .=  $skin->link( $eltitle, $eltitle->getText() );
 866                 }
 867                 return $return;
 868         }
 869
 870         function getCategories() {
 871                 $catlinks = $this->getCategoryLinks();
 872
 873                 $classes = 'catlinks';
 874
 875                 // Check what we're showing
 876                 global $wgOut, $wgUser;
 877                 $allCats = $wgOut->getCategoryLinks();
 878                 $showHidden = $wgUser->getBoolOption( 'showhiddencats' ) ||
 879                                                 $this->mTitle->getNamespace() == NS_CATEGORY;
 880
 881                 if( empty( $allCats['normal'] ) && !( !empty( $allCats['hidden'] ) && $showHidden ) ) {
 882                         $classes .= ' catlinks-allhidden';
 883                 }
 884
 885                 return "<div id='catlinks' class='$classes'>{$catlinks}</div>";
 886         }
 887
 888         function getQuickbarCompensator( $rows = 1 ) {
 889                 return "<td width='152' rowspan='{$rows}'>&#160;</td>";
 890         }
 891
 892         /**
 893          * This runs a hook to allow extensions placing their stuff after content
 894          * and article metadata (e.g. categories).
 895          * Note: This function has nothing to do with afterContent().
 896          *
 897          * This hook is placed here in order to allow using the same hook for all
 898          * skins, both the SkinTemplate based ones and the older ones, which directly
 899          * use this class to get their data.
 900          *
 901          * The output of this function gets processed in SkinTemplate::outputPage() for
 902          * the SkinTemplate based skins, all other skins should directly echo it.
 903          *
 904          * Returns an empty string by default, if not changed by any hook function.
 905          */
 906         protected function afterContentHook() {
 907                 $data = '';
 908
 909                 if( wfRunHooks( 'SkinAfterContent', array( &$data, $this ) ) ) {
 910                         // adding just some spaces shouldn't toggle the output
 911                         // of the whole <div/>, so we use trim() here
 912                         if( trim( $data ) != '' ) {
 913                                 // Doing this here instead of in the skins to
 914                                 // ensure that the div has the same ID in all
 915                                 // skins
 916                                 $data = "<div id='mw-data-after-content'>\n" .
 917                                         "\t$data\n" .
 918                                         "</div>\n";
 919                         }
 920                 } else {
 921                         wfDebug( "Hook SkinAfterContent changed output processing.\n" );
 922                 }
 923
 924                 return $data;
 925         }
 926
 927         /**
 928          * Generate debug data HTML for displaying at the bottom of the main content
 929          * area.
 930          * @return String HTML containing debug data, if enabled (otherwise empty).
 931          */
 932         protected function generateDebugHTML() {
 933                 global $wgShowDebug, $wgOut;
 934                 if ( $wgShowDebug ) {
 935                         $listInternals = $this->formatDebugHTML( $wgOut->mDebugtext );
 936                         return "\n<hr />\n<strong>Debug data:</strong><ul style=\"font-family:monospace;\" id=\"mw-debug-html\">" .
 937                                 $listInternals . "</ul>\n";
 938                 }
 939                 return '';
 940         }
 941
 942         private function formatDebugHTML( $debugText ) {
 943                 $lines = explode( "\n", $debugText );
 944                 $curIdent = 0;
 945                 $ret = '<li>';
 946                 foreach( $lines as $line ) {
 947                         $m = array();
 948                         $display = ltrim( $line );
 949                         $ident = strlen( $line ) - strlen( $display );
 950                         $diff = $ident - $curIdent;
 951
 952                         if ( $display == '' ) {
 953                                 $display = "\xc2\xa0";
 954                         }
 955
 956                         if ( !$ident && $diff < 0 && substr( $display, 0, 9 ) != 'Entering ' && substr( $display, 0, 8 ) != 'Exiting ' ) {
 957                                 $ident = $curIdent;
 958                                 $diff = 0;
 959                                 $display = '<span style="background:yellow;">' . htmlspecialchars( $display ) . '</span>';
 960                         } else {
 961                                 $display = htmlspecialchars( $display );
 962                         }
 963
 964                         if ( $diff < 0 ) {
 965                                 $ret .= str_repeat( "</li></ul>\n", -$diff ) . "</li><li>\n";
 966                         } elseif ( $diff == 0 ) {
 967                                 $ret .= "</li><li>\n";
 968                         } else {
 969                                 $ret .= str_repeat( "<ul><li>\n", $diff );
 970                         }
 971                         $ret .= $display . "\n";
 972
 973                         $curIdent = $ident;
 974                 }
 975                 $ret .= str_repeat( '</li></ul>', $curIdent ) . '</li>';
 976                 return $ret;
 977         }
 978
 979         /**
 980          * This gets called shortly before the </body> tag.
 981          * @return String HTML to be put before </body>
 982          */
 983         function afterContent() {
 984                 $printfooter = "<div class=\"printfooter\">\n" . $this->printFooter() . "</div>\n";
 985                 return $printfooter . $this->generateDebugHTML() . $this->doAfterContent();
 986         }
 987
 988         /**
 989          * This gets called shortly before the </body> tag.
 990          * @param $out OutputPage object
 991          * @return String HTML-wrapped JS code to be put before </body>
 992          */
 993         function bottomScripts( $out ) {
 994                 $bottomScriptText = "\n" . $out->getHeadScripts( $this );
 995                 wfRunHooks( 'SkinAfterBottomScripts', array( $this, &$bottomScriptText ) );
 996                 return $bottomScriptText;
 997         }
 998
 999         /** @return string Retrievied from HTML text */
1000         function printSource() {
1001                 $url = htmlspecialchars( $this->mTitle->getFullURL() );
1002                 return wfMsg( 'retrievedfrom', '<a href="' . $url . '">' . $url . '</a>' );
1003         }
1004
1005         function printFooter() {
1006                 return "<p>" .  $this->printSource() .
1007                         "</p>\n\n<p>" . $this->pageStats() . "</p>\n";
1008         }
1009
1010         /** overloaded by derived classes */
1011         function doAfterContent() {
1012                 return '</div></div>';
1013         }
1014
1015         function pageTitleLinks() {
1016                 global $wgOut, $wgUser, $wgRequest, $wgLang;
1017
1018                 $oldid = $wgRequest->getVal( 'oldid' );
1019                 $diff = $wgRequest->getVal( 'diff' );
1020                 $action = $wgRequest->getText( 'action' );
1021
1022                 $s[] = $this->printableLink();
1023                 $disclaimer = $this->disclaimerLink(); # may be empty
1024                 if( $disclaimer ) {
1025                         $s[] = $disclaimer;
1026                 }
1027                 $privacy = $this->privacyLink(); # may be empty too
1028                 if( $privacy ) {
1029                         $s[] = $privacy;
1030                 }
1031
1032                 if ( $wgOut->isArticleRelated() ) {
1033                         if ( $this->mTitle->getNamespace() == NS_FILE ) {
1034                                 $name = $this->mTitle->getDBkey();
1035                                 $image = wfFindFile( $this->mTitle );
1036                                 if( $image ) {
1037                                         $link = htmlspecialchars( $image->getURL() );
1038                                         $style = $this->getInternalLinkAttributes( $link, $name );
1039                                         $s[] = "<a href=\"{$link}\"{$style}>{$name}</a>";
1040                                 }
1041                         }
1042                 }
1043                 if ( 'history' == $action || isset( $diff ) || isset( $oldid ) ) {
1044                         $s[] .= $this->link(
1045                                         $this->mTitle,
1046                                         wfMsg( 'currentrev' ),
1047                                         array(),
1048                                         array(),
1049                                         array( 'known', 'noclasses' )
1050                         );
1051                 }
1052
1053                 if ( $wgUser->getNewtalk() ) {
1054                         # do not show "You have new messages" text when we are viewing our
1055                         # own talk page
1056                         if( !$this->mTitle->equals( $wgUser->getTalkPage() ) ) {
1057                                 $tl = $this->link(
1058                                         $wgUser->getTalkPage(),
1059                                         wfMsgHtml( 'newmessageslink' ),
1060                                         array(),
1061                                         array( 'redirect' => 'no' ),
1062                                         array( 'known', 'noclasses' )
1063                                 );
1064
1065                                 $dl = $this->link(
1066                                         $wgUser->getTalkPage(),
1067                                         wfMsgHtml( 'newmessagesdifflink' ),
1068                                         array(),
1069                                         array( 'diff' => 'cur' ),
1070                                         array( 'known', 'noclasses' )
1071                                 );
1072                                 $s[] = '<strong>'. wfMsg( 'youhavenewmessages', $tl, $dl ) . '</strong>';
1073                                 # disable caching
1074                                 $wgOut->setSquidMaxage( 0 );
1075                                 $wgOut->enableClientCache( false );
1076                         }
1077                 }
1078
1079                 $undelete = $this->getUndeleteLink();
1080                 if( !empty( $undelete ) ) {
1081                         $s[] = $undelete;
1082                 }
1083                 return $wgLang->pipeList( $s );
1084         }
1085
1086         function getUndeleteLink() {
1087                 global $wgUser, $wgLang, $wgRequest;
1088
1089                 $action = $wgRequest->getVal( 'action', 'view' );
1090
1091                 if ( $wgUser->isAllowed( 'deletedhistory' ) &&
1092                         ( $this->mTitle->getArticleId() == 0 || $action == 'history' ) ) {
1093                         $n = $this->mTitle->isDeleted();
1094                         if ( $n ) {
1095                                 if ( $wgUser->isAllowed( 'undelete' ) ) {
1096                                         $msg = 'thisisdeleted';
1097                                 } else {
1098                                         $msg = 'viewdeleted';
1099                                 }
1100                                 return wfMsg(
1101                                         $msg,
1102                                         $this->link(
1103                                                 SpecialPage::getTitleFor( 'Undelete', $this->mTitle->getPrefixedDBkey() ),
1104                                                 wfMsgExt( 'restorelink', array( 'parsemag', 'escape' ), $wgLang->formatNum( $n ) ),
1105                                                 array(),
1106                                                 array(),
1107                                                 array( 'known', 'noclasses' )
1108                                         )
1109                                 );
1110                         }
1111                 }
1112                 return '';
1113         }
1114
1115         function printableLink() {
1116                 global $wgOut, $wgFeedClasses, $wgRequest, $wgLang;
1117
1118                 $s = array();
1119
1120                 if ( !$wgOut->isPrintable() ) {
1121                         $printurl = $wgRequest->escapeAppendQuery( 'printable=yes' );
1122                         $s[] = "<a href=\"$printurl\" rel=\"alternate\">" . wfMsg( 'printableversion' ) . '</a>';
1123                 }
1124
1125                 if( $wgOut->isSyndicated() ) {
1126                         foreach( $wgFeedClasses as $format => $class ) {
1127                                 $feedurl = $wgRequest->escapeAppendQuery( "feed=$format" );
1128                                 $s[] = "<a href=\"$feedurl\" rel=\"alternate\" type=\"application/{$format}+xml\""
1129                                                 . " class=\"feedlink\">" . wfMsgHtml( "feed-$format" ) . "</a>";
1130                         }
1131                 }
1132                 return $wgLang->pipeList( $s );
1133         }
1134
1135         /**
1136          * Gets the h1 element with the page title.
1137          * @return string
1138          */
1139         function pageTitle() {
1140                 global $wgOut;
1141                 $s = '<h1 class="pagetitle">' . $wgOut->getPageTitle() . '</h1>';
1142                 return $s;
1143         }
1144
1145         function pageSubtitle() {
1146                 global $wgOut;
1147
1148                 $sub = $wgOut->getSubtitle();
1149                 if ( $sub == '' ) {
1150                         global $wgExtraSubtitle;
1151                         $sub = wfMsgExt( 'tagline', 'parsemag' ) . $wgExtraSubtitle;
1152                 }
1153                 $subpages = $this->subPageSubtitle();
1154                 $sub .= !empty( $subpages ) ? "</p><p class='subpages'>$subpages" : '';
1155                 $s = "<p class='subtitle'>{$sub}</p>\n";
1156                 return $s;
1157         }
1158
1159         function subPageSubtitle() {
1160                 $subpages = '';
1161                 if( !wfRunHooks( 'SkinSubPageSubtitle', array( &$subpages ) ) ) {
1162                         return $subpages;
1163                 }
1164
1165                 global $wgOut;
1166                 if( $wgOut->isArticle() && MWNamespace::hasSubpages( $this->mTitle->getNamespace() ) ) {
1167                         $ptext = $this->mTitle->getPrefixedText();
1168                         if( preg_match( '/\//', $ptext ) ) {
1169                                 $links = explode( '/', $ptext );
1170                                 array_pop( $links );
1171                                 $c = 0;
1172                                 $growinglink = '';
1173                                 $display = '';
1174                                 foreach( $links as $link ) {
1175                                         $growinglink .= $link;
1176                                         $display .= $link;
1177                                         $linkObj = Title::newFromText( $growinglink );
1178                                         if( is_object( $linkObj ) && $linkObj->exists() ) {
1179                                                 $getlink = $this->link(
1180                                                         $linkObj,
1181                                                         htmlspecialchars( $display ),
1182                                                         array(),
1183                                                         array(),
1184                                                         array( 'known', 'noclasses' )
1185                                                 );
1186                                                 $c++;
1187                                                 if( $c > 1 ) {
1188                                                         $subpages .= wfMsgExt( 'pipe-separator', 'escapenoentities' );
1189                                                 } else  {
1190                                                         $subpages .= '&lt; ';
1191                                                 }
1192                                                 $subpages .= $getlink;
1193                                                 $display = '';
1194                                         } else {
1195                                                 $display .= '/';
1196                                         }
1197                                         $growinglink .= '/';
1198                                 }
1199                         }
1200                 }
1201                 return $subpages;
1202         }
1203
1204         /**
1205          * Returns true if the IP should be shown in the header
1206          */
1207         function showIPinHeader() {
1208                 global $wgShowIPinHeader;
1209                 return $wgShowIPinHeader && session_id() != '';
1210         }
1211
1212         function nameAndLogin() {
1213                 global $wgUser, $wgLang, $wgContLang;
1214
1215                 $logoutPage = $wgContLang->specialPage( 'Userlogout' );
1216
1217                 $ret = '';
1218                 if ( $wgUser->isAnon() ) {
1219                         if( $this->showIPinHeader() ) {
1220                                 $name = wfGetIP();
1221
1222                                 $talkLink = $this->link( $wgUser->getTalkPage(),
1223                                         $wgLang->getNsText( NS_TALK ) );
1224
1225                                 $ret .= "$name ($talkLink)";
1226                         } else {
1227                                 $ret .= wfMsg( 'notloggedin' );
1228                         }
1229
1230                         $returnTo = $this->mTitle->getPrefixedDBkey();
1231                         $query = array();
1232                         if ( $logoutPage != $returnTo ) {
1233                                 $query['returnto'] = $returnTo;
1234                         }
1235
1236                         $loginlink = $wgUser->isAllowed( 'createaccount' )
1237                                 ? 'nav-login-createaccount'
1238                                 : 'login';
1239                         $ret .= "\n<br />" . $this->link(
1240                                 SpecialPage::getTitleFor( 'Userlogin' ),
1241                                 wfMsg( $loginlink ), array(), $query
1242                         );
1243                 } else {
1244                         $returnTo = $this->mTitle->getPrefixedDBkey();
1245                         $talkLink = $this->link( $wgUser->getTalkPage(),
1246                                 $wgLang->getNsText( NS_TALK ) );
1247
1248                         $ret .= $this->link( $wgUser->getUserPage(),
1249                                 htmlspecialchars( $wgUser->getName() ) );
1250                         $ret .= " ($talkLink)<br />";
1251                         $ret .= $wgLang->pipeList( array(
1252                                 $this->link(
1253                                         SpecialPage::getTitleFor( 'Userlogout' ), wfMsg( 'logout' ),
1254                                         array(), array( 'returnto' => $returnTo )
1255                                 ),
1256                                 $this->specialLink( 'preferences' ),
1257                         ) );
1258                 }
1259                 $ret = $wgLang->pipeList( array(
1260                         $ret,
1261                         $this->link(
1262                                 Title::newFromText( wfMsgForContent( 'helppage' ) ),
1263                                 wfMsg( 'help' )
1264                         ),
1265                 ) );
1266
1267                 return $ret;
1268         }
1269
1270         function getSearchLink() {
1271                 $searchPage = SpecialPage::getTitleFor( 'Search' );
1272                 return $searchPage->getLocalURL();
1273         }
1274
1275         function escapeSearchLink() {
1276                 return htmlspecialchars( $this->getSearchLink() );
1277         }
1278
1279         function searchForm() {
1280                 global $wgRequest, $wgUseTwoButtonsSearchForm;
1281                 $search = $wgRequest->getText( 'search' );
1282
1283                 $s = '<form id="searchform' . $this->searchboxes . '" name="search" class="inline" method="post" action="'
1284                   . $this->escapeSearchLink() . "\">\n"
1285                   . '<input type="text" id="searchInput' . $this->searchboxes . '" name="search" size="19" value="'
1286                   . htmlspecialchars( substr( $search, 0, 256 ) ) . "\" />\n"
1287                   . '<input type="submit" name="go" value="' . wfMsg( 'searcharticle' ) . '" />';
1288
1289                 if( $wgUseTwoButtonsSearchForm ) {
1290                         $s .= '&#160;<input type="submit" name="fulltext" value="' . wfMsg( 'searchbutton' ) . "\" />\n";
1291                 } else {
1292                         $s .= ' <a href="' . $this->escapeSearchLink() . '" rel="search">' . wfMsg( 'powersearch-legend' ) . "</a>\n";
1293                 }
1294
1295                 $s .= '</form>';
1296
1297                 // Ensure unique id's for search boxes made after the first
1298                 $this->searchboxes = $this->searchboxes == '' ? 2 : $this->searchboxes + 1;
1299
1300                 return $s;
1301         }
1302
1303         function topLinks() {
1304                 global $wgOut;
1305
1306                 $s = array(
1307                         $this->mainPageLink(),
1308                         $this->specialLink( 'recentchanges' )
1309                 );
1310
1311                 if ( $wgOut->isArticleRelated() ) {
1312                         $s[] = $this->editThisPage();
1313                         $s[] = $this->historyLink();
1314                 }
1315                 # Many people don't like this dropdown box
1316                 #$s[] = $this->specialPagesList();
1317
1318                 if( $this->variantLinks() ) {
1319                         $s[] = $this->variantLinks();
1320                 }
1321
1322                 if( $this->extensionTabLinks() ) {
1323                         $s[] = $this->extensionTabLinks();
1324                 }
1325
1326                 // FIXME: Is using Language::pipeList impossible here? Do not quite understand the use of the newline
1327                 return implode( $s, wfMsgExt( 'pipe-separator', 'escapenoentities' ) . "\n" );
1328         }
1329
1330         /**
1331          * Compatibility for extensions adding functionality through tabs.
1332          * Eventually these old skins should be replaced with SkinTemplate-based
1333          * versions, sigh...
1334          * @return string
1335          */
1336         function extensionTabLinks() {
1337                 $tabs = array();
1338                 $out = '';
1339                 $s = array();
1340                 wfRunHooks( 'SkinTemplateTabs', array( $this, &$tabs ) );
1341                 foreach( $tabs as $tab ) {
1342                         $s[] = Xml::element( 'a',
1343                                 array( 'href' => $tab['href'] ),
1344                                 $tab['text'] );
1345                 }
1346
1347                 if( count( $s ) ) {
1348                         global $wgLang;
1349
1350                         $out = wfMsgExt( 'pipe-separator' , 'escapenoentities' );
1351                         $out .= $wgLang->pipeList( $s );
1352                 }
1353
1354                 return $out;
1355         }
1356
1357         /**
1358          * Language/charset variant links for classic-style skins
1359          * @return string
1360          */
1361         function variantLinks() {
1362                 $s = '';
1363                 /* show links to different language variants */
1364                 global $wgDisableLangConversion, $wgLang, $wgContLang;
1365                 $variants = $wgContLang->getVariants();
1366                 if( !$wgDisableLangConversion && sizeof( $variants ) > 1 ) {
1367                         foreach( $variants as $code ) {
1368                                 $varname = $wgContLang->getVariantname( $code );
1369                                 if( $varname == 'disable' ) {
1370                                         continue;
1371                                 }
1372                                 $s = $wgLang->pipeList( array(
1373                                         $s,
1374                                         '<a href="' . $this->mTitle->escapeLocalURL( 'variant=' . $code ) . '">' . htmlspecialchars( $varname ) . '</a>'
1375                                 ) );
1376                         }
1377                 }
1378                 return $s;
1379         }
1380
1381         function bottomLinks() {
1382                 global $wgOut, $wgUser, $wgUseTrackbacks;
1383                 $sep = wfMsgExt( 'pipe-separator', 'escapenoentities' ) . "\n";
1384
1385                 $s = '';
1386                 if ( $wgOut->isArticleRelated() ) {
1387                         $element[] = '<strong>' . $this->editThisPage() . '</strong>';
1388                         if ( $wgUser->isLoggedIn() ) {
1389                                 $element[] = $this->watchThisPage();
1390                         }
1391                         $element[] = $this->talkLink();
1392                         $element[] = $this->historyLink();
1393                         $element[] = $this->whatLinksHere();
1394                         $element[] = $this->watchPageLinksLink();
1395
1396                         if( $wgUseTrackbacks ) {
1397                                 $element[] = $this->trackbackLink();
1398                         }
1399
1400                         if (
1401                                 $this->mTitle->getNamespace() == NS_USER ||
1402                                 $this->mTitle->getNamespace() == NS_USER_TALK
1403                         )
1404                         {
1405                                 $id = User::idFromName( $this->mTitle->getText() );
1406                                 $ip = User::isIP( $this->mTitle->getText() );
1407
1408                                 # Both anons and non-anons have contributions list
1409                                 if( $id || $ip ) {
1410                                         $element[] = $this->userContribsLink();
1411                                 }
1412                                 if( $this->showEmailUser( $id ) ) {
1413                                         $element[] = $this->emailUserLink();
1414                                 }
1415                         }
1416
1417                         $s = implode( $element, $sep );
1418
1419                         if ( $this->mTitle->getArticleId() ) {
1420                                 $s .= "\n<br />";
1421                                 // Delete/protect/move links for privileged users
1422                                 if( $wgUser->isAllowed( 'delete' ) ) {
1423                                         $s .= $this->deleteThisPage();
1424                                 }
1425                                 if( $wgUser->isAllowed( 'protect' ) ) {
1426                                         $s .= $sep . $this->protectThisPage();
1427                                 }
1428                                 if( $wgUser->isAllowed( 'move' ) ) {
1429                                         $s .= $sep . $this->moveThisPage();
1430                                 }
1431                         }
1432                         $s .= "<br />\n" . $this->otherLanguages();
1433                 }
1434
1435                 return $s;
1436         }
1437
1438         function pageStats() {
1439                 global $wgOut, $wgLang, $wgArticle, $wgRequest, $wgUser;
1440                 global $wgDisableCounters, $wgMaxCredits, $wgShowCreditsIfMax, $wgPageShowWatchingUsers;
1441
1442                 $oldid = $wgRequest->getVal( 'oldid' );
1443                 $diff = $wgRequest->getVal( 'diff' );
1444                 if ( !$wgOut->isArticle() ) {
1445                         return '';
1446                 }
1447                 if( !$wgArticle instanceof Article ) {
1448                         return '';
1449                 }
1450                 if ( isset( $oldid ) || isset( $diff ) ) {
1451                         return '';
1452                 }
1453                 if ( 0 == $wgArticle->getID() ) {
1454                         return '';
1455                 }
1456
1457                 $s = '';
1458                 if ( !$wgDisableCounters ) {
1459                         $count = $wgLang->formatNum( $wgArticle->getCount() );
1460                         if ( $count ) {
1461                                 $s = wfMsgExt( 'viewcount', array( 'parseinline' ), $count );
1462                         }
1463                 }
1464
1465                 if( $wgMaxCredits != 0 ) {
1466                         $s .= ' ' . Credits::getCredits( $wgArticle, $wgMaxCredits, $wgShowCreditsIfMax );
1467                 } else {
1468                         $s .= $this->lastModified();
1469                 }
1470
1471                 if( $wgPageShowWatchingUsers && $wgUser->getOption( 'shownumberswatching' ) ) {
1472                         $dbr = wfGetDB( DB_SLAVE );
1473                         $res = $dbr->select(
1474                                 'watchlist',
1475                                 array( 'COUNT(*) AS n' ),
1476                                 array(
1477                                         'wl_title' => $dbr->strencode( $this->mTitle->getDBkey() ),
1478                                         'wl_namespace' => $this->mTitle->getNamespace()
1479                                 ),
1480                                 __METHOD__
1481                         );
1482                         $x = $dbr->fetchObject( $res );
1483
1484                         $s .= ' ' . wfMsgExt( 'number_of_watching_users_pageview',
1485                                 array( 'parseinline' ), $wgLang->formatNum( $x->n )
1486                         );
1487                 }
1488
1489                 return $s . ' ' .  $this->getCopyright();
1490         }
1491
1492         function getCopyright( $type = 'detect' ) {
1493                 global $wgRightsPage, $wgRightsUrl, $wgRightsText, $wgRequest, $wgArticle;
1494
1495                 if ( $type == 'detect' ) {
1496                         $diff = $wgRequest->getVal( 'diff' );
1497                         $isCur = $wgArticle && $wgArticle->isCurrent();
1498                         if ( is_null( $diff ) && !$isCur && wfMsgForContent( 'history_copyright' ) !== '-' ) {
1499                                 $type = 'history';
1500                         } else {
1501                                 $type = 'normal';
1502                         }
1503                 }
1504
1505                 if ( $type == 'history' ) {
1506                         $msg = 'history_copyright';
1507                 } else {
1508                         $msg = 'copyright';
1509                 }
1510
1511                 $out = '';
1512                 if( $wgRightsPage ) {
1513                         $title = Title::newFromText( $wgRightsPage );
1514                         $link = $this->linkKnown( $title, $wgRightsText );
1515                 } elseif( $wgRightsUrl ) {
1516                         $link = $this->makeExternalLink( $wgRightsUrl, $wgRightsText );
1517                 } elseif( $wgRightsText ) {
1518                         $link = $wgRightsText;
1519                 } else {
1520                         # Give up now
1521                         return $out;
1522                 }
1523                 // Allow for site and per-namespace customization of copyright notice.
1524                 $forContent = true;
1525                 if( isset( $wgArticle ) ) {
1526                         wfRunHooks( 'SkinCopyrightFooter', array( $wgArticle->getTitle(), $type, &$msg, &$link, &$forContent ) );
1527                 }
1528
1529                 if ( $forContent ) {
1530                         $out .= wfMsgForContent( $msg, $link );
1531                 } else {
1532                         $out .= wfMsg( $msg, $link );
1533                 }
1534                 return $out;
1535         }
1536
1537         function getCopyrightIcon() {
1538                 global $wgRightsUrl, $wgRightsText, $wgRightsIcon, $wgCopyrightIcon;
1539                 $out = '';
1540                 if ( isset( $wgCopyrightIcon ) && $wgCopyrightIcon ) {
1541                         $out = $wgCopyrightIcon;
1542                 } elseif ( $wgRightsIcon ) {
1543                         $icon = htmlspecialchars( $wgRightsIcon );
1544                         if ( $wgRightsUrl ) {
1545                                 $url = htmlspecialchars( $wgRightsUrl );
1546                                 $out .= '<a href="'.$url.'">';
1547                         }
1548                         $text = htmlspecialchars( $wgRightsText );
1549                         $out .= "<img src=\"$icon\" alt=\"$text\" width=\"88\" height=\"31\" />";
1550                         if ( $wgRightsUrl ) {
1551                                 $out .= '</a>';
1552                         }
1553                 }
1554                 return $out;
1555         }
1556
1557         /**
1558          * Gets the powered by MediaWiki icon.
1559          * @return string
1560          */
1561         function getPoweredBy() {
1562                 global $wgStylePath;
1563                 $url = htmlspecialchars( "$wgStylePath/common/images/poweredby_mediawiki_88x31.png" );
1564                 $img = '<a href="http://www.mediawiki.org/"><img src="' . $url . '" height="31" width="88" alt="Powered by MediaWiki" /></a>';
1565                 return $img;
1566         }
1567
1568         function lastModified() {
1569                 global $wgLang, $wgArticle;
1570                 if( $this->mRevisionId && $this->mRevisionId != $wgArticle->getLatest() ) {
1571                         $timestamp = Revision::getTimestampFromId( $wgArticle->getTitle(), $this->mRevisionId );
1572                 } else {
1573                         $timestamp = $wgArticle->getTimestamp();
1574                 }
1575                 if ( $timestamp ) {
1576                         $d = $wgLang->date( $timestamp, true );
1577                         $t = $wgLang->time( $timestamp, true );
1578                         $s = ' ' . wfMsg( 'lastmodifiedat', $d, $t );
1579                 } else {
1580                         $s = '';
1581                 }
1582                 if ( wfGetLB()->getLaggedSlaveMode() ) {
1583                         $s .= ' <strong>' . wfMsg( 'laggedslavemode' ) . '</strong>';
1584                 }
1585                 return $s;
1586         }
1587
1588         function logoText( $align = '' ) {
1589                 if ( $align != '' ) {
1590                         $a = " align='{$align}'";
1591                 } else {
1592                         $a = '';
1593                 }
1594
1595                 $mp = wfMsg( 'mainpage' );
1596                 $mptitle = Title::newMainPage();
1597                 $url = ( is_object( $mptitle ) ? $mptitle->escapeLocalURL() : '' );
1598
1599                 $logourl = $this->getLogo();
1600                 $s = "<a href='{$url}'><img{$a} src='{$logourl}' alt='[{$mp}]' /></a>";
1601                 return $s;
1602         }
1603
1604         /**
1605          * Show a drop-down box of special pages
1606          */
1607         function specialPagesList() {
1608                 global $wgContLang, $wgServer, $wgRedirectScript;
1609                 $pages = array_merge( SpecialPage::getRegularPages(), SpecialPage::getRestrictedPages() );
1610                 foreach ( $pages as $name => $page ) {
1611                         $pages[$name] = $page->getDescription();
1612                 }
1613
1614                 $go = wfMsg( 'go' );
1615                 $sp = wfMsg( 'specialpages' );
1616                 $spp = $wgContLang->specialPage( 'Specialpages' );
1617
1618                 $s = '<form id="specialpages" method="get" ' .
1619                   'action="' . htmlspecialchars( "{$wgServer}{$wgRedirectScript}" ) . "\">\n";
1620                 $s .= "<select name=\"wpDropdown\">\n";
1621                 $s .= "<option value=\"{$spp}\">{$sp}</option>\n";
1622
1623
1624                 foreach ( $pages as $name => $desc ) {
1625                         $p = $wgContLang->specialPage( $name );
1626                         $s .= "<option value=\"{$p}\">{$desc}</option>\n";
1627                 }
1628                 $s .= "</select>\n";
1629                 $s .= "<input type='submit' value=\"{$go}\" name='redirect' />\n";
1630                 $s .= "</form>\n";
1631                 return $s;
1632         }
1633
1634         /**
1635          * Gets the link to the wiki's main page.
1636          * @return string
1637          */
1638         function mainPageLink() {
1639                 $s = $this->link(
1640                         Title::newMainPage(),
1641                         wfMsg( 'mainpage' ),
1642                         array(),
1643                         array(),
1644                         array( 'known', 'noclasses' )
1645                 );
1646                 return $s;
1647         }
1648
1649         private function footerLink( $desc, $page ) {
1650                 // if the link description has been set to "-" in the default language,
1651                 if ( wfMsgForContent( $desc )  == '-') {
1652                         // then it is disabled, for all languages.
1653                         return '';
1654                 } else {
1655                         // Otherwise, we display the link for the user, described in their
1656                         // language (which may or may not be the same as the default language),
1657                         // but we make the link target be the one site-wide page.
1658                         $title = Title::newFromText( wfMsgForContent( $page ) );
1659                         return $this->linkKnown(
1660                                 $title,
1661                                 wfMsgExt( $desc, array( 'parsemag', 'escapenoentities' ) )
1662                         );
1663                 }
1664         }
1665
1666         /**
1667          * Gets the link to the wiki's privacy policy page.
1668          */
1669         function privacyLink() {
1670                 return $this->footerLink( 'privacy', 'privacypage' );
1671         }
1672
1673         /**
1674          * Gets the link to the wiki's about page.
1675          */
1676         function aboutLink() {
1677                 return $this->footerLink( 'aboutsite', 'aboutpage' );
1678         }
1679
1680         /**
1681          * Gets the link to the wiki's general disclaimers page.
1682          */
1683         function disclaimerLink() {
1684                 return $this->footerLink( 'disclaimers', 'disclaimerpage' );
1685         }
1686
1687         function editThisPage() {
1688                 global $wgOut;
1689
1690                 if ( !$wgOut->isArticleRelated() ) {
1691                         $s = wfMsg( 'protectedpage' );
1692                 } else {
1693                         if( $this->mTitle->quickUserCan( 'edit' ) && $this->mTitle->exists() ) {
1694                                 $t = wfMsg( 'editthispage' );
1695                         } elseif( $this->mTitle->quickUserCan( 'create' ) && !$this->mTitle->exists() ) {
1696                                 $t = wfMsg( 'create-this-page' );
1697                         } else {
1698                                 $t = wfMsg( 'viewsource' );
1699                         }
1700
1701                         $s = $this->link(
1702                                 $this->mTitle,
1703                                 $t,
1704                                 array(),
1705                                 $this->editUrlOptions(),
1706                                 array( 'known', 'noclasses' )
1707                         );
1708                 }
1709                 return $s;
1710         }
1711
1712         /**
1713          * Return URL options for the 'edit page' link.
1714          * This may include an 'oldid' specifier, if the current page view is such.
1715          *
1716          * @return array
1717          * @private
1718          */
1719         function editUrlOptions() {
1720                 global $wgArticle;
1721
1722                 $options = array( 'action' => 'edit' );
1723
1724                 if( $this->mRevisionId && ! $wgArticle->isCurrent() ) {
1725                         $options['oldid'] = intval( $this->mRevisionId );
1726                 }
1727
1728                 return $options;
1729         }
1730
1731         function deleteThisPage() {
1732                 global $wgUser, $wgRequest;
1733
1734                 $diff = $wgRequest->getVal( 'diff' );
1735                 if ( $this->mTitle->getArticleId() && ( !$diff ) && $wgUser->isAllowed( 'delete' ) ) {
1736                         $t = wfMsg( 'deletethispage' );
1737
1738                         $s = $this->link(
1739                                 $this->mTitle,
1740                                 $t,
1741                                 array(),
1742                                 array( 'action' => 'delete' ),
1743                                 array( 'known', 'noclasses' )
1744                         );
1745                 } else {
1746                         $s = '';
1747                 }
1748                 return $s;
1749         }
1750
1751         function protectThisPage() {
1752                 global $wgUser, $wgRequest;
1753
1754                 $diff = $wgRequest->getVal( 'diff' );
1755                 if ( $this->mTitle->getArticleId() && ( ! $diff ) && $wgUser->isAllowed('protect') ) {
1756                         if ( $this->mTitle->isProtected() ) {
1757                                 $text = wfMsg( 'unprotectthispage' );
1758                                 $query = array( 'action' => 'unprotect' );
1759                         } else {
1760                                 $text = wfMsg( 'protectthispage' );
1761                                 $query = array( 'action' => 'protect' );
1762                         }
1763
1764                         $s = $this->link(
1765                                 $this->mTitle,
1766                                 $text,
1767                                 array(),
1768                                 $query,
1769                                 array( 'known', 'noclasses' )
1770                         );
1771                 } else {
1772                         $s = '';
1773                 }
1774                 return $s;
1775         }
1776
1777         function watchThisPage() {
1778                 global $wgOut;
1779                 ++$this->mWatchLinkNum;
1780
1781                 if ( $wgOut->isArticleRelated() ) {
1782                         if ( $this->mTitle->userIsWatching() ) {
1783                                 $text = wfMsg( 'unwatchthispage' );
1784                                 $query = array( 'action' => 'unwatch' );
1785                                 $id = 'mw-unwatch-link' . $this->mWatchLinkNum;
1786                         } else {
1787                                 $text = wfMsg( 'watchthispage' );
1788                                 $query = array( 'action' => 'watch' );
1789                                 $id = 'mw-watch-link' . $this->mWatchLinkNum;
1790                         }
1791
1792                         $s = $this->link(
1793                                 $this->mTitle,
1794                                 $text,
1795                                 array( 'id' => $id ),
1796                                 $query,
1797                                 array( 'known', 'noclasses' )
1798                         );
1799                 } else {
1800                         $s = wfMsg( 'notanarticle' );
1801                 }
1802                 return $s;
1803         }
1804
1805         function moveThisPage() {
1806                 if ( $this->mTitle->quickUserCan( 'move' ) ) {
1807                         return $this->link(
1808                                 SpecialPage::getTitleFor( 'Movepage' ),
1809                                 wfMsg( 'movethispage' ),
1810                                 array(),
1811                                 array( 'target' => $this->mTitle->getPrefixedDBkey() ),
1812                                 array( 'known', 'noclasses' )
1813                         );
1814                 } else {
1815                         // no message if page is protected - would be redundant
1816                         return '';
1817                 }
1818         }
1819
1820         function historyLink() {
1821                 return $this->link(
1822                         $this->mTitle,
1823                         wfMsgHtml( 'history' ),
1824                         array( 'rel' => 'archives' ),
1825                         array( 'action' => 'history' )
1826                 );
1827         }
1828
1829         function whatLinksHere() {
1830                 return $this->link(
1831                         SpecialPage::getTitleFor( 'Whatlinkshere', $this->mTitle->getPrefixedDBkey() ),
1832                         wfMsgHtml( 'whatlinkshere' ),
1833                         array(),
1834                         array(),
1835                         array( 'known', 'noclasses' )
1836                 );
1837         }
1838
1839         function userContribsLink() {
1840                 return $this->link(
1841                         SpecialPage::getTitleFor( 'Contributions', $this->mTitle->getDBkey() ),
1842                         wfMsgHtml( 'contributions' ),
1843                         array(),
1844                         array(),
1845                         array( 'known', 'noclasses' )
1846                 );
1847         }
1848
1849         function showEmailUser( $id ) {
1850                 global $wgUser;
1851                 $targetUser = User::newFromId( $id );
1852                 return $wgUser->canSendEmail() && # the sending user must have a confirmed email address
1853                         $targetUser->canReceiveEmail(); # the target user must have a confirmed email address and allow emails from users
1854         }
1855
1856         function emailUserLink() {
1857                 return $this->link(
1858                         SpecialPage::getTitleFor( 'Emailuser', $this->mTitle->getDBkey() ),
1859                         wfMsg( 'emailuser' ),
1860                         array(),
1861                         array(),
1862                         array( 'known', 'noclasses' )
1863                 );
1864         }
1865
1866         function watchPageLinksLink() {
1867                 global $wgOut;
1868                 if ( !$wgOut->isArticleRelated() ) {
1869                         return '(' . wfMsg( 'notanarticle' ) . ')';
1870                 } else {
1871                         return $this->link(
1872                                 SpecialPage::getTitleFor( 'Recentchangeslinked', $this->mTitle->getPrefixedDBkey() ),
1873                                 wfMsg( 'recentchangeslinked-toolbox' ),
1874                                 array(),
1875                                 array(),
1876                                 array( 'known', 'noclasses' )
1877                         );
1878                 }
1879         }
1880
1881         function trackbackLink() {
1882                 return '<a href="' . $this->mTitle->trackbackURL() . '">'
1883                         . wfMsg( 'trackbacklink' ) . '</a>';
1884         }
1885
1886         function otherLanguages() {
1887                 global $wgOut, $wgContLang, $wgHideInterlanguageLinks;
1888
1889                 if ( $wgHideInterlanguageLinks ) {
1890                         return '';
1891                 }
1892
1893                 $a = $wgOut->getLanguageLinks();
1894                 if ( 0 == count( $a ) ) {
1895                         return '';
1896                 }
1897
1898                 $s = wfMsg( 'otherlanguages' ) . wfMsg( 'colon-separator' );
1899                 $first = true;
1900                 if( $wgContLang->isRTL() ) {
1901                         $s .= '<span dir="LTR">';
1902                 }
1903                 foreach( $a as $l ) {
1904                         if ( !$first ) {
1905                                 $s .= wfMsgExt( 'pipe-separator', 'escapenoentities' );
1906                         }
1907                         $first = false;
1908
1909                         $nt = Title::newFromText( $l );
1910                         $url = $nt->escapeFullURL();
1911                         $text = $wgContLang->getLanguageName( $nt->getInterwiki() );
1912                         $title = htmlspecialchars( $nt->getText() );
1913
1914                         if ( $text == '' ) {
1915                                 $text = $l;
1916                         }
1917                         $style = $this->getExternalLinkAttributes();
1918                         $s .= "<a href=\"{$url}\" title=\"{$title}\"{$style}>{$text}</a>";
1919                 }
1920                 if( $wgContLang->isRTL() ) {
1921                         $s .= '</span>';
1922                 }
1923                 return $s;
1924         }
1925
1926         function talkLink() {
1927                 if ( NS_SPECIAL == $this->mTitle->getNamespace() ) {
1928                         # No discussion links for special pages
1929                         return '';
1930                 }
1931
1932                 $linkOptions = array();
1933
1934                 if( $this->mTitle->isTalkPage() ) {
1935                         $link = $this->mTitle->getSubjectPage();
1936                         switch( $link->getNamespace() ) {
1937                                 case NS_MAIN:
1938                                         $text = wfMsg( 'articlepage' );
1939                                         break;
1940                                 case NS_USER:
1941                                         $text = wfMsg( 'userpage' );
1942                                         break;
1943                                 case NS_PROJECT:
1944                                         $text = wfMsg( 'projectpage' );
1945                                         break;
1946                                 case NS_FILE:
1947                                         $text = wfMsg( 'imagepage' );
1948                                         # Make link known if image exists, even if the desc. page doesn't.
1949                                         if( wfFindFile( $link ) )
1950                                                 $linkOptions[] = 'known';
1951                                         break;
1952                                 case NS_MEDIAWIKI:
1953                                         $text = wfMsg( 'mediawikipage' );
1954                                         break;
1955                                 case NS_TEMPLATE:
1956                                         $text = wfMsg( 'templatepage' );
1957                                         break;
1958                                 case NS_HELP:
1959                                         $text = wfMsg( 'viewhelppage' );
1960                                         break;
1961                                 case NS_CATEGORY:
1962                                         $text = wfMsg( 'categorypage' );
1963                                         break;
1964                                 default:
1965                                         $text = wfMsg( 'articlepage' );
1966                         }
1967                 } else {
1968                         $link = $this->mTitle->getTalkPage();
1969                         $text = wfMsg( 'talkpage' );
1970                 }
1971
1972                 $s = $this->link( $link, $text, array(), array(), $linkOptions );
1973
1974                 return $s;
1975         }
1976
1977         function commentLink() {
1978                 global $wgOut;
1979
1980                 if ( $this->mTitle->getNamespace() == NS_SPECIAL ) {
1981                         return '';
1982                 }
1983
1984                 # __NEWSECTIONLINK___ changes behaviour here
1985                 # If it is present, the link points to this page, otherwise
1986                 # it points to the talk page
1987                 if( $this->mTitle->isTalkPage() ) {
1988                         $title = $this->mTitle;
1989                 } elseif( $wgOut->showNewSectionLink() ) {
1990                         $title = $this->mTitle;
1991                 } else {
1992                         $title = $this->mTitle->getTalkPage();
1993                 }
1994
1995                 return $this->link(
1996                         $title,
1997                         wfMsg( 'postcomment' ),
1998                         array(),
1999                         array(
2000                                 'action' => 'edit',
2001                                 'section' => 'new'
2002                         ),
2003                         array( 'known', 'noclasses' )
2004                 );
2005         }
2006
2007         function getUploadLink() {
2008                 global $wgUploadNavigationUrl;
2009
2010                 if( $wgUploadNavigationUrl ) {
2011                         # Using an empty class attribute to avoid automatic setting of "external" class
2012                         return $this->makeExternalLink( $wgUploadNavigationUrl, wfMsgHtml( 'upload' ), false, null, array( 'class' => '') );
2013                 } else {
2014                         return $this->link(
2015                                 SpecialPage::getTitleFor('Upload'),
2016                                 wfMsgHtml( 'upload' ),
2017                                 array(),
2018                                 array(),
2019                                 array( 'known', 'noclasses' )
2020                         );
2021                 }
2022         }
2023
2024         /* these are used extensively in SkinTemplate, but also some other places */
2025         static function makeMainPageUrl( $urlaction = '' ) {
2026                 $title = Title::newMainPage();
2027                 self::checkTitle( $title, '' );
2028                 return $title->getLocalURL( $urlaction );
2029         }
2030
2031         static function makeSpecialUrl( $name, $urlaction = '' ) {
2032                 $title = SpecialPage::getTitleFor( $name );
2033                 return $title->getLocalURL( $urlaction );
2034         }
2035
2036         static function makeSpecialUrlSubpage( $name, $subpage, $urlaction = '' ) {
2037                 $title = SpecialPage::getSafeTitleFor( $name, $subpage );
2038                 return $title->getLocalURL( $urlaction );
2039         }
2040
2041         static function makeI18nUrl( $name, $urlaction = '' ) {
2042                 $title = Title::newFromText( wfMsgForContent( $name ) );
2043                 self::checkTitle( $title, $name );
2044                 return $title->getLocalURL( $urlaction );
2045         }
2046
2047         static function makeUrl( $name, $urlaction = '' ) {
2048                 $title = Title::newFromText( $name );
2049                 self::checkTitle( $title, $name );
2050                 return $title->getLocalURL( $urlaction );
2051         }
2052
2053         /**
2054          * If url string starts with http, consider as external URL, else
2055          * internal
2056          */
2057         static function makeInternalOrExternalUrl( $name ) {
2058                 if ( preg_match( '/^(?:' . wfUrlProtocols() . ')/', $name ) ) {
2059                         return $name;
2060                 } else {
2061                         return self::makeUrl( $name );
2062                 }
2063         }
2064
2065         # this can be passed the NS number as defined in Language.php
2066         static function makeNSUrl( $name, $urlaction = '', $namespace = NS_MAIN ) {
2067                 $title = Title::makeTitleSafe( $namespace, $name );
2068                 self::checkTitle( $title, $name );
2069                 return $title->getLocalURL( $urlaction );
2070         }
2071
2072         /* these return an array with the 'href' and boolean 'exists' */
2073         static function makeUrlDetails( $name, $urlaction = '' ) {
2074                 $title = Title::newFromText( $name );
2075                 self::checkTitle( $title, $name );
2076                 return array(
2077                         'href' => $title->getLocalURL( $urlaction ),
2078                         'exists' => $title->getArticleID() != 0 ? true : false
2079                 );
2080         }
2081
2082         /**
2083          * Make URL details where the article exists (or at least it's convenient to think so)
2084          */
2085         static function makeKnownUrlDetails( $name, $urlaction = '' ) {
2086                 $title = Title::newFromText( $name );
2087                 self::checkTitle( $title, $name );
2088                 return array(
2089                         'href' => $title->getLocalURL( $urlaction ),
2090                         'exists' => true
2091                 );
2092         }
2093
2094         # make sure we have some title to operate on
2095         static function checkTitle( &$title, $name ) {
2096                 if( !is_object( $title ) ) {
2097                         $title = Title::newFromText( $name );
2098                         if( !is_object( $title ) ) {
2099                                 $title = Title::newFromText( '--error: link target missing--' );
2100                         }
2101                 }
2102         }
2103
2104         /**
2105          * Build an array that represents the sidebar(s), the navigation bar among them
2106          *
2107          * @return array
2108          */
2109         function buildSidebar() {
2110                 global $parserMemc, $wgEnableSidebarCache, $wgSidebarCacheExpiry;
2111                 global $wgLang;
2112                 wfProfileIn( __METHOD__ );
2113
2114                 $key = wfMemcKey( 'sidebar', $wgLang->getCode() );
2115
2116                 if ( $wgEnableSidebarCache ) {
2117                         $cachedsidebar = $parserMemc->get( $key );
2118                         if ( $cachedsidebar ) {
2119                                 wfProfileOut( __METHOD__ );
2120                                 return $cachedsidebar;
2121                         }
2122                 }
2123
2124                 $bar = array();
2125                 $this->addToSidebar( $bar, 'sidebar' );
2126
2127                 wfRunHooks( 'SkinBuildSidebar', array( $this, &$bar ) );
2128                 if ( $wgEnableSidebarCache ) {
2129                         $parserMemc->set( $key, $bar, $wgSidebarCacheExpiry );
2130                 }
2131                 wfProfileOut( __METHOD__ );
2132                 return $bar;
2133         }
2134         /**
2135          * Add content from a sidebar system message
2136          * Currently only used for MediaWiki:Sidebar (but may be used by Extensions)
2137          *
2138          * This is just a wrapper around addToSidebarPlain() for backwards compatibility
2139          *
2140          * @param &$bar array
2141          * @param $message String
2142          */
2143         function addToSidebar( &$bar, $message ) {
2144                 $this->addToSidebarPlain( $bar, wfMsgForContent( $message ) );
2145         }
2146
2147         /**
2148          * Add content from plain text
2149          * @since 1.17
2150          * @param &$bar array
2151          * @param $text string
2152          */
2153         function addToSidebarPlain( &$bar, $text ) {
2154                 $lines = explode( "\n", $text );
2155                 $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.
2156
2157                 $heading = '';
2158                 foreach( $lines as $line ) {
2159                         if( strpos( $line, '*' ) !== 0 ) {
2160                                 continue;
2161                         }
2162                         if( strpos( $line, '**') !== 0 ) {
2163                                 $heading = trim( $line, '* ' );
2164                                 if( !array_key_exists( $heading, $bar ) ) {
2165                                         $bar[$heading] = array();
2166                                 }
2167                         } else {
2168                                 $line = trim( $line, '* ' );
2169                                 if( strpos( $line, '|' ) !== false ) { // sanity check
2170                                         $line = array_map( 'trim', explode( '|', $line, 2 ) );
2171                                         $link = wfMsgForContent( $line[0] );
2172                                         if( $link == '-' ) {
2173                                                 continue;
2174                                         }
2175
2176                                         $text = wfMsgExt( $line[1], 'parsemag' );
2177                                         if( wfEmptyMsg( $line[1], $text ) ) {
2178                                                 $text = $line[1];
2179                                         }
2180                                         if( wfEmptyMsg( $line[0], $link ) ) {
2181                                                 $link = $line[0];
2182                                         }
2183
2184                                         if ( preg_match( '/^(?:' . wfUrlProtocols() . ')/', $link ) ) {
2185                                                 $href = $link;
2186                                         } else {
2187                                                 $title = Title::newFromText( $link );
2188                                                 if ( $title ) {
2189                                                         $title = $title->fixSpecialName();
2190                                                         $href = $title->getLocalURL();
2191                                                 } else {
2192                                                         $href = 'INVALID-TITLE';
2193                                                 }
2194                                         }
2195
2196                                         $bar[$heading][] = array(
2197                                                 'text' => $text,
2198                                                 'href' => $href,
2199                                                 'id' => 'n-' . strtr( $line[1], ' ', '-' ),
2200                                                 'active' => false
2201                                         );
2202                                 } else if ( (substr($line, 0, 2) == '{{') && (substr($line, -2) == '}}') ) {
2203                                         global $wgParser, $wgTitle;
2204
2205                                         $line = substr($line, 2, strlen($line) - 4 );
2206
2207                                         if (is_null($wgParser->mOptions))
2208                                                 $wgParser->mOptions = new ParserOptions();
2209
2210                                         $wgParser->mOptions->setEditSection(false);
2211                                         $wikiBar[$heading] = $wgParser->parse( wfMsgForContentNoTrans( $line ) , $wgTitle, $wgParser->mOptions )->getText();
2212                                 } else {
2213                                         continue;
2214                                 }
2215                         }
2216                 }
2217
2218                 if ( count($wikiBar) > 0 )
2219                         $bar = array_merge($bar, $wikiBar);
2220
2221                 return $bar;
2222         }
2223
2224         /**
2225          * Should we include common/wikiprintable.css?  Skins that have their own
2226          * print stylesheet should override this and return false.  (This is an
2227          * ugly hack to get Monobook to play nicely with
2228          * OutputPage::headElement().)
2229          *
2230          * @return bool
2231          */
2232         public function commonPrintStylesheet() {
2233                 return true;
2234         }
2235
2236         /**
2237          * Gets new talk page messages for the current user.
2238          * @return MediaWiki message or if no new talk page messages, nothing
2239          */
2240         function getNewtalks() {
2241                 global $wgUser, $wgOut;
2242                 $newtalks = $wgUser->getNewMessageLinks();
2243                 $ntl = '';
2244
2245                 if( count( $newtalks ) == 1 && $newtalks[0]['wiki'] === wfWikiID() ) {
2246                         $userTitle = $this->mUser->getUserPage();
2247                         $userTalkTitle = $userTitle->getTalkPage();
2248
2249                         if( !$userTalkTitle->equals( $this->mTitle ) ) {
2250                                 $newMessagesLink = $this->link(
2251                                         $userTalkTitle,
2252                                         wfMsgHtml( 'newmessageslink' ),
2253                                         array(),
2254                                         array( 'redirect' => 'no' ),
2255                                         array( 'known', 'noclasses' )
2256                                 );
2257
2258                                 $newMessagesDiffLink = $this->link(
2259                                         $userTalkTitle,
2260                                         wfMsgHtml( 'newmessagesdifflink' ),
2261                                         array(),
2262                                         array( 'diff' => 'cur' ),
2263                                         array( 'known', 'noclasses' )
2264                                 );
2265
2266                                 $ntl = wfMsg(
2267                                         'youhavenewmessages',
2268                                         $newMessagesLink,
2269                                         $newMessagesDiffLink
2270                                 );
2271                                 # Disable Squid cache
2272                                 $wgOut->setSquidMaxage( 0 );
2273                         }
2274                 } elseif( count( $newtalks ) ) {
2275                         // _>" " for BC <= 1.16
2276                         $sep = str_replace( '_', ' ', wfMsgHtml( 'newtalkseparator' ) );
2277                         $msgs = array();
2278                         foreach( $newtalks as $newtalk ) {
2279                                 $msgs[] = Xml::element(
2280                                         'a',
2281                                         array( 'href' => $newtalk['link'] ), $newtalk['wiki']
2282                                 );
2283                         }
2284                         $parts = implode( $sep, $msgs );
2285                         $ntl = wfMsgHtml( 'youhavenewmessagesmulti', $parts );
2286                         $wgOut->setSquidMaxage( 0 );
2287                 }
2288                 return $ntl;
2289         }
2290
2291 }