includes/skins/SkinTemplate.php

   1 <?php
   2 /**
   3  * This program is free software; you can redistribute it and/or modify
   4  * it under the terms of the GNU General Public License as published by
   5  * the Free Software Foundation; either version 2 of the License, or
   6  * (at your option) any later version.
   7  *
   8  * This program is distributed in the hope that it will be useful,
   9  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  10  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
  11  * GNU General Public License for more details.
  12  *
  13  * You should have received a copy of the GNU General Public License along
  14  * with this program; if not, write to the Free Software Foundation, Inc.,
  15  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
  16  * http://www.gnu.org/copyleft/gpl.html
  17  *
  18  * @file
  19  */
  20
  21 /**
  22  * Base class for template-based skins.
  23  *
  24  * Template-filler skin base class
  25  * Formerly generic PHPTal (http://phptal.sourceforge.net/) skin
  26  * Based on Brion's smarty skin
  27  * @copyright Copyright © Gabriel Wicke -- http://www.aulinx.de/
  28  *
  29  * @todo Needs some serious refactoring into functions that correspond
  30  * to the computations individual esi snippets need. Most importantly no body
  31  * parsing for most of those of course.
  32  *
  33  * @ingroup Skins
  34  */
  35 class SkinTemplate extends Skin {
  36         /**
  37          * @var string Name of our skin, it probably needs to be all lower case.
  38          *   Child classes should override the default.
  39          */
  40         public $skinname = 'monobook';
  41
  42         /**
  43          * @var string For QuickTemplate, the name of the subclass which will
  44          *   actually fill the template.  Child classes should override the default.
  45          */
  46         public $template = 'QuickTemplate';
  47
  48         /**
  49          * Add specific styles for this skin
  50          *
  51          * @param OutputPage $out
  52          */
  53         function setupSkinUserCss( OutputPage $out ) {
  54                 $moduleStyles = array(
  55                         'mediawiki.legacy.shared',
  56                         'mediawiki.legacy.commonPrint',
  57                         'mediawiki.sectionAnchor'
  58                 );
  59                 if ( $out->isSyndicated() ) {
  60                         $moduleStyles[] = 'mediawiki.feedlink';
  61                 }
  62
  63                 // Deprecated since 1.26: Unconditional loading of mediawiki.ui.button
  64                 // on every page is deprecated. Express a dependency instead.
  65                 if ( strpos( $out->getHTML(), 'mw-ui-button' ) !== false ) {
  66                         $moduleStyles[] = 'mediawiki.ui.button';
  67                 }
  68
  69                 $out->addModuleStyles( $moduleStyles );
  70         }
  71
  72         /**
  73          * Create the template engine object; we feed it a bunch of data
  74          * and eventually it spits out some HTML. Should have interface
  75          * roughly equivalent to PHPTAL 0.7.
  76          *
  77          * @param string $classname
  78          * @param bool|string $repository Subdirectory where we keep template files
  79          * @param bool|string $cache_dir
  80          * @return QuickTemplate
  81          * @private
  82          */
  83         function setupTemplate( $classname, $repository = false, $cache_dir = false ) {
  84                 return new $classname( $this->getConfig() );
  85         }
  86
  87         /**
  88          * Generates array of language links for the current page
  89          *
  90          * @return array
  91          */
  92         public function getLanguages() {
  93                 global $wgHideInterlanguageLinks;
  94                 if ( $wgHideInterlanguageLinks ) {
  95                         return array();
  96                 }
  97
  98                 $userLang = $this->getLanguage();
  99                 $languageLinks = array();
 100
 101                 foreach ( $this->getOutput()->getLanguageLinks() as $languageLinkText ) {
 102                         $languageLinkParts = explode( ':', $languageLinkText, 2 );
 103                         $class = 'interlanguage-link interwiki-' . $languageLinkParts[0];
 104                         unset( $languageLinkParts );
 105
 106                         $languageLinkTitle = Title::newFromText( $languageLinkText );
 107                         if ( $languageLinkTitle ) {
 108                                 $ilInterwikiCode = $languageLinkTitle->getInterwiki();
 109                                 $ilLangName = Language::fetchLanguageName( $ilInterwikiCode );
 110
 111                                 if ( strval( $ilLangName ) === '' ) {
 112                                         $ilDisplayTextMsg = wfMessage( "interlanguage-link-$ilInterwikiCode" );
 113                                         if ( !$ilDisplayTextMsg->isDisabled() ) {
 114                                                 // Use custom MW message for the display text
 115                                                 $ilLangName = $ilDisplayTextMsg->text();
 116                                         } else {
 117                                                 // Last resort: fallback to the language link target
 118                                                 $ilLangName = $languageLinkText;
 119                                         }
 120                                 } else {
 121                                         // Use the language autonym as display text
 122                                         $ilLangName = $this->formatLanguageName( $ilLangName );
 123                                 }
 124
 125                                 // CLDR extension or similar is required to localize the language name;
 126                                 // otherwise we'll end up with the autonym again.
 127                                 $ilLangLocalName = Language::fetchLanguageName(
 128                                         $ilInterwikiCode,
 129                                         $userLang->getCode()
 130                                 );
 131
 132                                 $languageLinkTitleText = $languageLinkTitle->getText();
 133                                 if ( $ilLangLocalName === '' ) {
 134                                         $ilFriendlySiteName = wfMessage( "interlanguage-link-sitename-$ilInterwikiCode" );
 135                                         if ( !$ilFriendlySiteName->isDisabled() ) {
 136                                                 if ( $languageLinkTitleText === '' ) {
 137                                                         $ilTitle = wfMessage(
 138                                                                 'interlanguage-link-title-nonlangonly',
 139                                                                 $ilFriendlySiteName->text()
 140                                                         )->text();
 141                                                 } else {
 142                                                         $ilTitle = wfMessage(
 143                                                                 'interlanguage-link-title-nonlang',
 144                                                                 $languageLinkTitleText,
 145                                                                 $ilFriendlySiteName->text()
 146                                                         )->text();
 147                                                 }
 148                                         } else {
 149                                                 // we have nothing friendly to put in the title, so fall back to
 150                                                 // displaying the interlanguage link itself in the title text
 151                                                 // (similar to what is done in page content)
 152                                                 $ilTitle = $languageLinkTitle->getInterwiki() .
 153                                                         ":$languageLinkTitleText";
 154                                         }
 155                                 } elseif ( $languageLinkTitleText === '' ) {
 156                                         $ilTitle = wfMessage(
 157                                                 'interlanguage-link-title-langonly',
 158                                                 $ilLangLocalName
 159                                         )->text();
 160                                 } else {
 161                                         $ilTitle = wfMessage(
 162                                                 'interlanguage-link-title',
 163                                                 $languageLinkTitleText,
 164                                                 $ilLangLocalName
 165                                         )->text();
 166                                 }
 167
 168                                 $ilInterwikiCodeBCP47 = wfBCP47( $ilInterwikiCode );
 169                                 $languageLink = array(
 170                                         'href' => $languageLinkTitle->getFullURL(),
 171                                         'text' => $ilLangName,
 172                                         'title' => $ilTitle,
 173                                         'class' => $class,
 174                                         'lang' => $ilInterwikiCodeBCP47,
 175                                         'hreflang' => $ilInterwikiCodeBCP47,
 176                                 );
 177                                 Hooks::run(
 178                                         'SkinTemplateGetLanguageLink',
 179                                         array( &$languageLink, $languageLinkTitle, $this->getTitle(), $this->getOutput() )
 180                                 );
 181                                 $languageLinks[] = $languageLink;
 182                         }
 183                 }
 184
 185                 return $languageLinks;
 186         }
 187
 188         protected function setupTemplateForOutput() {
 189
 190                 $request = $this->getRequest();
 191                 $user = $this->getUser();
 192                 $title = $this->getTitle();
 193
 194                 $tpl = $this->setupTemplate( $this->template, 'skins' );
 195
 196                 $this->thispage = $title->getPrefixedDBkey();
 197                 $this->titletxt = $title->getPrefixedText();
 198                 $this->userpage = $user->getUserPage()->getPrefixedText();
 199                 $query = array();
 200                 if ( !$request->wasPosted() ) {
 201                         $query = $request->getValues();
 202                         unset( $query['title'] );
 203                         unset( $query['returnto'] );
 204                         unset( $query['returntoquery'] );
 205                 }
 206                 $this->thisquery = wfArrayToCgi( $query );
 207                 $this->loggedin = $user->isLoggedIn();
 208                 $this->username = $user->getName();
 209
 210                 if ( $this->loggedin ) {
 211                         $this->userpageUrlDetails = self::makeUrlDetails( $this->userpage );
 212                 } else {
 213                         # This won't be used in the standard skins, but we define it to preserve the interface
 214                         # To save time, we check for existence
 215                         $this->userpageUrlDetails = self::makeKnownUrlDetails( $this->userpage );
 216                 }
 217
 218                 return $tpl;
 219         }
 220
 221         /**
 222          * initialize various variables and generate the template
 223          *
 224          * @param OutputPage $out
 225          */
 226         function outputPage( OutputPage $out = null ) {
 227                 Profiler::instance()->setTemplated( true );
 228
 229                 $oldContext = null;
 230                 if ( $out !== null ) {
 231                         // Deprecated since 1.20, note added in 1.25
 232                         wfDeprecated( __METHOD__, '1.25' );
 233                         $oldContext = $this->getContext();
 234                         $this->setContext( $out->getContext() );
 235                 }
 236
 237                 $out = $this->getOutput();
 238
 239                 $this->initPage( $out );
 240                 $tpl = $this->prepareQuickTemplate( $out );
 241                 // execute template
 242                 $res = $tpl->execute();
 243
 244                 // result may be an error
 245                 $this->printOrError( $res );
 246
 247                 if ( $oldContext ) {
 248                         $this->setContext( $oldContext );
 249                 }
 250
 251         }
 252
 253         /**
 254          * initialize various variables and generate the template
 255          *
 256          * @since 1.23
 257          * @return QuickTemplate The template to be executed by outputPage
 258          */
 259         protected function prepareQuickTemplate() {
 260                 global $wgContLang, $wgScript, $wgStylePath, $wgMimeType, $wgJsMimeType,
 261                         $wgSitename, $wgLogo, $wgMaxCredits,
 262                         $wgShowCreditsIfMax, $wgArticlePath,
 263                         $wgScriptPath, $wgServer;
 264
 265                 $title = $this->getTitle();
 266                 $request = $this->getRequest();
 267                 $out = $this->getOutput();
 268                 $tpl = $this->setupTemplateForOutput();
 269
 270                 $tpl->set( 'title', $out->getPageTitle() );
 271                 $tpl->set( 'pagetitle', $out->getHTMLTitle() );
 272                 $tpl->set( 'displaytitle', $out->mPageLinkTitle );
 273
 274                 $tpl->setRef( 'thispage', $this->thispage );
 275                 $tpl->setRef( 'titleprefixeddbkey', $this->thispage );
 276                 $tpl->set( 'titletext', $title->getText() );
 277                 $tpl->set( 'articleid', $title->getArticleID() );
 278
 279                 $tpl->set( 'isarticle', $out->isArticle() );
 280
 281                 $subpagestr = $this->subPageSubtitle();
 282                 if ( $subpagestr !== '' ) {
 283                         $subpagestr = '<span class="subpages">' . $subpagestr . '</span>';
 284                 }
 285                 $tpl->set( 'subtitle', $subpagestr . $out->getSubtitle() );
 286
 287                 $undelete = $this->getUndeleteLink();
 288                 if ( $undelete === '' ) {
 289                         $tpl->set( 'undelete', '' );
 290                 } else {
 291                         $tpl->set( 'undelete', '<span class="subpages">' . $undelete . '</span>' );
 292                 }
 293
 294                 $tpl->set( 'catlinks', $this->getCategories() );
 295                 if ( $out->isSyndicated() ) {
 296                         $feeds = array();
 297                         foreach ( $out->getSyndicationLinks() as $format => $link ) {
 298                                 $feeds[$format] = array(
 299                                         // Messages: feed-atom, feed-rss
 300                                         'text' => $this->msg( "feed-$format" )->text(),
 301                                         'href' => $link
 302                                 );
 303                         }
 304                         $tpl->setRef( 'feeds', $feeds );
 305                 } else {
 306                         $tpl->set( 'feeds', false );
 307                 }
 308
 309                 $tpl->setRef( 'mimetype', $wgMimeType );
 310                 $tpl->setRef( 'jsmimetype', $wgJsMimeType );
 311                 $tpl->set( 'charset', 'UTF-8' );
 312                 $tpl->setRef( 'wgScript', $wgScript );
 313                 $tpl->setRef( 'skinname', $this->skinname );
 314                 $tpl->set( 'skinclass', get_class( $this ) );
 315                 $tpl->setRef( 'skin', $this );
 316                 $tpl->setRef( 'stylename', $this->stylename );
 317                 $tpl->set( 'printable', $out->isPrintable() );
 318                 $tpl->set( 'handheld', $request->getBool( 'handheld' ) );
 319                 $tpl->setRef( 'loggedin', $this->loggedin );
 320                 $tpl->set( 'notspecialpage', !$title->isSpecialPage() );
 321                 $tpl->set( 'searchaction', $this->escapeSearchLink() );
 322                 $tpl->set( 'searchtitle', SpecialPage::getTitleFor( 'Search' )->getPrefixedDBkey() );
 323                 $tpl->set( 'search', trim( $request->getVal( 'search' ) ) );
 324                 $tpl->setRef( 'stylepath', $wgStylePath );
 325                 $tpl->setRef( 'articlepath', $wgArticlePath );
 326                 $tpl->setRef( 'scriptpath', $wgScriptPath );
 327                 $tpl->setRef( 'serverurl', $wgServer );
 328                 $tpl->setRef( 'logopath', $wgLogo );
 329                 $tpl->setRef( 'sitename', $wgSitename );
 330
 331                 $userLang = $this->getLanguage();
 332                 $userLangCode = $userLang->getHtmlCode();
 333                 $userLangDir = $userLang->getDir();
 334
 335                 $tpl->set( 'lang', $userLangCode );
 336                 $tpl->set( 'dir', $userLangDir );
 337                 $tpl->set( 'rtl', $userLang->isRTL() );
 338
 339                 $tpl->set( 'capitalizeallnouns', $userLang->capitalizeAllNouns() ? ' capitalize-all-nouns' : '' );
 340                 $tpl->set( 'showjumplinks', true ); // showjumplinks preference has been removed
 341                 $tpl->set( 'username', $this->loggedin ? $this->username : null );
 342                 $tpl->setRef( 'userpage', $this->userpage );
 343                 $tpl->setRef( 'userpageurl', $this->userpageUrlDetails['href'] );
 344                 $tpl->set( 'userlang', $userLangCode );
 345
 346                 // Users can have their language set differently than the
 347                 // content of the wiki. For these users, tell the web browser
 348                 // that interface elements are in a different language.
 349                 $tpl->set( 'userlangattributes', '' );
 350                 $tpl->set( 'specialpageattributes', '' ); # obsolete
 351                 // Used by VectorBeta to insert HTML before content but after the
 352                 // heading for the page title. Defaults to empty string.
 353                 $tpl->set( 'prebodyhtml', '' );
 354
 355                 if ( $userLangCode !== $wgContLang->getHtmlCode() || $userLangDir !== $wgContLang->getDir() ) {
 356                         $escUserlang = htmlspecialchars( $userLangCode );
 357                         $escUserdir = htmlspecialchars( $userLangDir );
 358                         // Attributes must be in double quotes because htmlspecialchars() doesn't
 359                         // escape single quotes
 360                         $attrs = " lang=\"$escUserlang\" dir=\"$escUserdir\"";
 361                         $tpl->set( 'userlangattributes', $attrs );
 362                 }
 363
 364                 $tpl->set( 'newtalk', $this->getNewtalks() );
 365                 $tpl->set( 'logo', $this->logoText() );
 366
 367                 $tpl->set( 'copyright', false );
 368                 // No longer used
 369                 $tpl->set( 'viewcount', false );
 370                 $tpl->set( 'lastmod', false );
 371                 $tpl->set( 'credits', false );
 372                 $tpl->set( 'numberofwatchingusers', false );
 373                 if ( $out->isArticle() && $title->exists() ) {
 374                         if ( $this->isRevisionCurrent() ) {
 375                                 if ( $wgMaxCredits != 0 ) {
 376                                         $tpl->set( 'credits', Action::factory( 'credits', $this->getWikiPage(),
 377                                                 $this->getContext() )->getCredits( $wgMaxCredits, $wgShowCreditsIfMax ) );
 378                                 } else {
 379                                         $tpl->set( 'lastmod', $this->lastModified() );
 380                                 }
 381                         }
 382                         $tpl->set( 'copyright', $this->getCopyright() );
 383                 }
 384
 385                 $tpl->set( 'copyrightico', $this->getCopyrightIcon() );
 386                 $tpl->set( 'poweredbyico', $this->getPoweredBy() );
 387                 $tpl->set( 'disclaimer', $this->disclaimerLink() );
 388                 $tpl->set( 'privacy', $this->privacyLink() );
 389                 $tpl->set( 'about', $this->aboutLink() );
 390
 391                 $tpl->set( 'footerlinks', array(
 392                         'info' => array(
 393                                 'lastmod',
 394                                 'numberofwatchingusers',
 395                                 'credits',
 396                                 'copyright',
 397                         ),
 398                         'places' => array(
 399                                 'privacy',
 400                                 'about',
 401                                 'disclaimer',
 402                         ),
 403                 ) );
 404
 405                 global $wgFooterIcons;
 406                 $tpl->set( 'footericons', $wgFooterIcons );
 407                 foreach ( $tpl->data['footericons'] as $footerIconsKey => &$footerIconsBlock ) {
 408                         if ( count( $footerIconsBlock ) > 0 ) {
 409                                 foreach ( $footerIconsBlock as &$footerIcon ) {
 410                                         if ( isset( $footerIcon['src'] ) ) {
 411                                                 if ( !isset( $footerIcon['width'] ) ) {
 412                                                         $footerIcon['width'] = 88;
 413                                                 }
 414                                                 if ( !isset( $footerIcon['height'] ) ) {
 415                                                         $footerIcon['height'] = 31;
 416                                                 }
 417                                         }
 418                                 }
 419                         } else {
 420                                 unset( $tpl->data['footericons'][$footerIconsKey] );
 421                         }
 422                 }
 423
 424                 $tpl->set( 'indicators', $out->getIndicators() );
 425
 426                 $tpl->set( 'sitenotice', $this->getSiteNotice() );
 427                 $tpl->set( 'bottomscripts', $this->bottomScripts() );
 428                 $tpl->set( 'printfooter', $this->printSource() );
 429
 430                 # An ID that includes the actual body text; without categories, contentSub, ...
 431                 $realBodyAttribs = array( 'id' => 'mw-content-text' );
 432
 433                 # Add a mw-content-ltr/rtl class to be able to style based on text direction
 434                 # when the content is different from the UI language, i.e.:
 435                 # not for special pages or file pages AND only when viewing
 436                 if ( !in_array( $title->getNamespace(), array( NS_SPECIAL, NS_FILE ) ) &&
 437                         Action::getActionName( $this ) === 'view' ) {
 438                         $pageLang = $title->getPageViewLanguage();
 439                         $realBodyAttribs['lang'] = $pageLang->getHtmlCode();
 440                         $realBodyAttribs['dir'] = $pageLang->getDir();
 441                         $realBodyAttribs['class'] = 'mw-content-' . $pageLang->getDir();
 442                 }
 443
 444                 $out->mBodytext = Html::rawElement( 'div', $realBodyAttribs, $out->mBodytext );
 445                 $tpl->setRef( 'bodytext', $out->mBodytext );
 446
 447                 $language_urls = $this->getLanguages();
 448                 if ( count( $language_urls ) ) {
 449                         $tpl->setRef( 'language_urls', $language_urls );
 450                 } else {
 451                         $tpl->set( 'language_urls', false );
 452                 }
 453
 454                 # Personal toolbar
 455                 $tpl->set( 'personal_urls', $this->buildPersonalUrls() );
 456                 $content_navigation = $this->buildContentNavigationUrls();
 457                 $content_actions = $this->buildContentActionUrls( $content_navigation );
 458                 $tpl->setRef( 'content_navigation', $content_navigation );
 459                 $tpl->setRef( 'content_actions', $content_actions );
 460
 461                 $tpl->set( 'sidebar', $this->buildSidebar() );
 462                 $tpl->set( 'nav_urls', $this->buildNavUrls() );
 463
 464                 // Set the head scripts near the end, in case the above actions resulted in added scripts
 465                 $tpl->set( 'headelement', $out->headElement( $this ) );
 466
 467                 $tpl->set( 'debug', '' );
 468                 $tpl->set( 'debughtml', $this->generateDebugHTML() );
 469                 $tpl->set( 'reporttime', wfReportTime() );
 470
 471                 // original version by hansm
 472                 if ( !Hooks::run( 'SkinTemplateOutputPageBeforeExec', array( &$this, &$tpl ) ) ) {
 473                         wfDebug( __METHOD__ . ": Hook SkinTemplateOutputPageBeforeExec broke outputPage execution!\n" );
 474                 }
 475
 476                 // Set the bodytext to another key so that skins can just output it on its own
 477                 // and output printfooter and debughtml separately
 478                 $tpl->set( 'bodycontent', $tpl->data['bodytext'] );
 479
 480                 // Append printfooter and debughtml onto bodytext so that skins that
 481                 // were already using bodytext before they were split out don't suddenly
 482                 // start not outputting information.
 483                 $tpl->data['bodytext'] .= Html::rawElement(
 484                         'div',
 485                         array( 'class' => 'printfooter' ),
 486                         "\n{$tpl->data['printfooter']}"
 487                 ) . "\n";
 488                 $tpl->data['bodytext'] .= $tpl->data['debughtml'];
 489
 490                 // allow extensions adding stuff after the page content.
 491                 // See Skin::afterContentHook() for further documentation.
 492                 $tpl->set( 'dataAfterContent', $this->afterContentHook() );
 493
 494                 return $tpl;
 495         }
 496
 497         /**
 498          * Get the HTML for the p-personal list
 499          * @return string
 500          */
 501         public function getPersonalToolsList() {
 502                 $tpl = $this->setupTemplateForOutput();
 503                 $tpl->set( 'personal_urls', $this->buildPersonalUrls() );
 504                 $html = '';
 505                 foreach ( $tpl->getPersonalTools() as $key => $item ) {
 506                         $html .= $tpl->makeListItem( $key, $item );
 507                 }
 508                 return $html;
 509         }
 510
 511         /**
 512          * Format language name for use in sidebar interlanguage links list.
 513          * By default it is capitalized.
 514          *
 515          * @param string $name Language name, e.g. "English" or "español"
 516          * @return string
 517          * @private
 518          */
 519         function formatLanguageName( $name ) {
 520                 return $this->getLanguage()->ucfirst( $name );
 521         }
 522
 523         /**
 524          * Output the string, or print error message if it's
 525          * an error object of the appropriate type.
 526          * For the base class, assume strings all around.
 527          *
 528          * @param string $str
 529          * @private
 530          */
 531         function printOrError( $str ) {
 532                 echo $str;
 533         }
 534
 535         /**
 536          * Output a boolean indicating if buildPersonalUrls should output separate
 537          * login and create account links or output a combined link
 538          * By default we simply return a global config setting that affects most skins
 539          * This is setup as a method so that like with $wgLogo and getLogo() a skin
 540          * can override this setting and always output one or the other if it has
 541          * a reason it can't output one of the two modes.
 542          * @return bool
 543          */
 544         function useCombinedLoginLink() {
 545                 global $wgUseCombinedLoginLink;
 546                 return $wgUseCombinedLoginLink;
 547         }
 548
 549         /**
 550          * build array of urls for personal toolbar
 551          * @return array
 552          */
 553         protected function buildPersonalUrls() {
 554                 $title = $this->getTitle();
 555                 $request = $this->getRequest();
 556                 $pageurl = $title->getLocalURL();
 557
 558                 /* set up the default links for the personal toolbar */
 559                 $personal_urls = array();
 560
 561                 # Due to bug 32276, if a user does not have read permissions,
 562                 # $this->getTitle() will just give Special:Badtitle, which is
 563                 # not especially useful as a returnto parameter. Use the title
 564                 # from the request instead, if there was one.
 565                 if ( $this->getUser()->isAllowed( 'read' ) ) {
 566                         $page = $this->getTitle();
 567                 } else {
 568                         $page = Title::newFromText( $request->getVal( 'title', '' ) );
 569                 }
 570                 $page = $request->getVal( 'returnto', $page );
 571                 $a = array();
 572                 if ( strval( $page ) !== '' ) {
 573                         $a['returnto'] = $page;
 574                         $query = $request->getVal( 'returntoquery', $this->thisquery );
 575                         if ( $query != '' ) {
 576                                 $a['returntoquery'] = $query;
 577                         }
 578                 }
 579
 580                 $returnto = wfArrayToCgi( $a );
 581                 if ( $this->loggedin ) {
 582                         $personal_urls['userpage'] = array(
 583                                 'text' => $this->username,
 584                                 'href' => &$this->userpageUrlDetails['href'],
 585                                 'class' => $this->userpageUrlDetails['exists'] ? false : 'new',
 586                                 'active' => ( $this->userpageUrlDetails['href'] == $pageurl ),
 587                                 'dir' => 'auto'
 588                         );
 589                         $usertalkUrlDetails = $this->makeTalkUrlDetails( $this->userpage );
 590                         $personal_urls['mytalk'] = array(
 591                                 'text' => $this->msg( 'mytalk' )->text(),
 592                                 'href' => &$usertalkUrlDetails['href'],
 593                                 'class' => $usertalkUrlDetails['exists'] ? false : 'new',
 594                                 'active' => ( $usertalkUrlDetails['href'] == $pageurl )
 595                         );
 596                         $href = self::makeSpecialUrl( 'Preferences' );
 597                         $personal_urls['preferences'] = array(
 598                                 'text' => $this->msg( 'mypreferences' )->text(),
 599                                 'href' => $href,
 600                                 'active' => ( $href == $pageurl )
 601                         );
 602
 603                         if ( $this->getUser()->isAllowed( 'viewmywatchlist' ) ) {
 604                                 $href = self::makeSpecialUrl( 'Watchlist' );
 605                                 $personal_urls['watchlist'] = array(
 606                                         'text' => $this->msg( 'mywatchlist' )->text(),
 607                                         'href' => $href,
 608                                         'active' => ( $href == $pageurl )
 609                                 );
 610                         }
 611
 612                         # We need to do an explicit check for Special:Contributions, as we
 613                         # have to match both the title, and the target, which could come
 614                         # from request values (Special:Contributions?target=Jimbo_Wales)
 615                         # or be specified in "sub page" form
 616                         # (Special:Contributions/Jimbo_Wales). The plot
 617                         # thickens, because the Title object is altered for special pages,
 618                         # so it doesn't contain the original alias-with-subpage.
 619                         $origTitle = Title::newFromText( $request->getText( 'title' ) );
 620                         if ( $origTitle instanceof Title && $origTitle->isSpecialPage() ) {
 621                                 list( $spName, $spPar ) = SpecialPageFactory::resolveAlias( $origTitle->getText() );
 622                                 $active = $spName == 'Contributions'
 623                                         && ( ( $spPar && $spPar == $this->username )
 624                                                 || $request->getText( 'target' ) == $this->username );
 625                         } else {
 626                                 $active = false;
 627                         }
 628
 629                         $href = self::makeSpecialUrlSubpage( 'Contributions', $this->username );
 630                         $personal_urls['mycontris'] = array(
 631                                 'text' => $this->msg( 'mycontris' )->text(),
 632                                 'href' => $href,
 633                                 'active' => $active
 634                         );
 635                         $personal_urls['logout'] = array(
 636                                 'text' => $this->msg( 'pt-userlogout' )->text(),
 637                                 'href' => self::makeSpecialUrl( 'Userlogout',
 638                                         // userlogout link must always contain an & character, otherwise we might not be able
 639                                         // to detect a buggy precaching proxy (bug 17790)
 640                                         $title->isSpecial( 'Preferences' ) ? 'noreturnto' : $returnto
 641                                 ),
 642                                 'active' => false
 643                         );
 644                 } else {
 645                         $useCombinedLoginLink = $this->useCombinedLoginLink();
 646                         $loginlink = $this->getUser()->isAllowed( 'createaccount' ) && $useCombinedLoginLink
 647                                 ? 'nav-login-createaccount'
 648                                 : 'pt-login';
 649                         $is_signup = $request->getText( 'type' ) == 'signup';
 650
 651                         $login_url = array(
 652                                 'text' => $this->msg( $loginlink )->text(),
 653                                 'href' => self::makeSpecialUrl( 'Userlogin', $returnto ),
 654                                 'active' => $title->isSpecial( 'Userlogin' )
 655                                         && ( $loginlink == 'nav-login-createaccount' || !$is_signup ),
 656                         );
 657                         $createaccount_url = array(
 658                                 'text' => $this->msg( 'pt-createaccount' )->text(),
 659                                 'href' => self::makeSpecialUrl( 'Userlogin', "$returnto&type=signup" ),
 660                                 'active' => $title->isSpecial( 'Userlogin' ) && $is_signup,
 661                         );
 662
 663                         // No need to show Talk and Contributions to anons if they can't contribute!
 664                         if ( User::groupHasPermission( '*', 'edit' ) ) {
 665                                 // Show the text "Not logged in"
 666                                 $personal_urls['anonuserpage'] = array(
 667                                         'text' => $this->msg( 'notloggedin' )->text()
 668                                 );
 669
 670                                 // Because of caching, we can't link directly to the IP talk and
 671                                 // contributions pages. Instead we use the special page shortcuts
 672                                 // (which work correctly regardless of caching). This means we can't
 673                                 // determine whether these links are active or not, but since major
 674                                 // skins (MonoBook, Vector) don't use this information, it's not a
 675                                 // huge loss.
 676                                 $personal_urls['anontalk'] = array(
 677                                         'text' => $this->msg( 'anontalk' )->text(),
 678                                         'href' => self::makeSpecialUrlSubpage( 'Mytalk', false ),
 679                                         'active' => false
 680                                 );
 681                                 $personal_urls['anoncontribs'] = array(
 682                                         'text' => $this->msg( 'anoncontribs' )->text(),
 683                                         'href' => self::makeSpecialUrlSubpage( 'Mycontributions', false ),
 684                                         'active' => false
 685                                 );
 686                         }
 687
 688                         if ( $this->getUser()->isAllowed( 'createaccount' ) && !$useCombinedLoginLink ) {
 689                                 $personal_urls['createaccount'] = $createaccount_url;
 690                         }
 691
 692                         $personal_urls['login'] = $login_url;
 693                 }
 694
 695                 Hooks::run( 'PersonalUrls', array( &$personal_urls, &$title, $this ) );
 696                 return $personal_urls;
 697         }
 698
 699         /**
 700          * Builds an array with tab definition
 701          *
 702          * @param Title $title Page Where the tab links to
 703          * @param string|array $message Message key or an array of message keys (will fall back)
 704          * @param bool $selected Display the tab as selected
 705          * @param string $query Query string attached to tab URL
 706          * @param bool $checkEdit Check if $title exists and mark with .new if one doesn't
 707          *
 708          * @return array
 709          */
 710         function tabAction( $title, $message, $selected, $query = '', $checkEdit = false ) {
 711                 $classes = array();
 712                 if ( $selected ) {
 713                         $classes[] = 'selected';
 714                 }
 715                 if ( $checkEdit && !$title->isKnown() ) {
 716                         $classes[] = 'new';
 717                         if ( $query !== '' ) {
 718                                 $query = 'action=edit&redlink=1&' . $query;
 719                         } else {
 720                                 $query = 'action=edit&redlink=1';
 721                         }
 722                 }
 723
 724                 // wfMessageFallback will nicely accept $message as an array of fallbacks
 725                 // or just a single key
 726                 $msg = wfMessageFallback( $message )->setContext( $this->getContext() );
 727                 if ( is_array( $message ) ) {
 728                         // for hook compatibility just keep the last message name
 729                         $message = end( $message );
 730                 }
 731                 if ( $msg->exists() ) {
 732                         $text = $msg->text();
 733                 } else {
 734                         global $wgContLang;
 735                         $text = $wgContLang->getConverter()->convertNamespace(
 736                                 MWNamespace::getSubject( $title->getNamespace() ) );
 737                 }
 738
 739                 $result = array();
 740                 if ( !Hooks::run( 'SkinTemplateTabAction', array( &$this,
 741                                 $title, $message, $selected, $checkEdit,
 742                                 &$classes, &$query, &$text, &$result ) ) ) {
 743                         return $result;
 744                 }
 745
 746                 return array(
 747                         'class' => implode( ' ', $classes ),
 748                         'text' => $text,
 749                         'href' => $title->getLocalURL( $query ),
 750                         'primary' => true );
 751         }
 752
 753         function makeTalkUrlDetails( $name, $urlaction = '' ) {
 754                 $title = Title::newFromText( $name );
 755                 if ( !is_object( $title ) ) {
 756                         throw new MWException( __METHOD__ . " given invalid pagename $name" );
 757                 }
 758                 $title = $title->getTalkPage();
 759                 self::checkTitle( $title, $name );
 760                 return array(
 761                         'href' => $title->getLocalURL( $urlaction ),
 762                         'exists' => $title->isKnown(),
 763                 );
 764         }
 765
 766         /**
 767          * @todo is this even used?
 768          */
 769         function makeArticleUrlDetails( $name, $urlaction = '' ) {
 770                 $title = Title::newFromText( $name );
 771                 $title = $title->getSubjectPage();
 772                 self::checkTitle( $title, $name );
 773                 return array(
 774                         'href' => $title->getLocalURL( $urlaction ),
 775                         'exists' => $title->exists(),
 776                 );
 777         }
 778
 779         /**
 780          * a structured array of links usually used for the tabs in a skin
 781          *
 782          * There are 4 standard sections
 783          * namespaces: Used for namespace tabs like special, page, and talk namespaces
 784          * views: Used for primary page views like read, edit, history
 785          * actions: Used for most extra page actions like deletion, protection, etc...
 786          * variants: Used to list the language variants for the page
 787          *
 788          * Each section's value is a key/value array of links for that section.
 789          * The links themselves have these common keys:
 790          * - class: The css classes to apply to the tab
 791          * - text: The text to display on the tab
 792          * - href: The href for the tab to point to
 793          * - rel: An optional rel= for the tab's link
 794          * - redundant: If true the tab will be dropped in skins using content_actions
 795          *   this is useful for tabs like "Read" which only have meaning in skins that
 796          *   take special meaning from the grouped structure of content_navigation
 797          *
 798          * Views also have an extra key which can be used:
 799          * - primary: If this is not true skins like vector may try to hide the tab
 800          *            when the user has limited space in their browser window
 801          *
 802          * content_navigation using code also expects these ids to be present on the
 803          * links, however these are usually automatically generated by SkinTemplate
 804          * itself and are not necessary when using a hook. The only things these may
 805          * matter to are people modifying content_navigation after it's initial creation:
 806          * - id: A "preferred" id, most skins are best off outputting this preferred
 807          *   id for best compatibility.
 808          * - tooltiponly: This is set to true for some tabs in cases where the system
 809          *   believes that the accesskey should not be added to the tab.
 810          *
 811          * @return array
 812          */
 813         protected function buildContentNavigationUrls() {
 814                 global $wgDisableLangConversion;
 815
 816                 // Display tabs for the relevant title rather than always the title itself
 817                 $title = $this->getRelevantTitle();
 818                 $onPage = $title->equals( $this->getTitle() );
 819
 820                 $out = $this->getOutput();
 821                 $request = $this->getRequest();
 822                 $user = $this->getUser();
 823
 824                 $content_navigation = array(
 825                         'namespaces' => array(),
 826                         'views' => array(),
 827                         'actions' => array(),
 828                         'variants' => array()
 829                 );
 830
 831                 // parameters
 832                 $action = $request->getVal( 'action', 'view' );
 833
 834                 $userCanRead = $title->quickUserCan( 'read', $user );
 835
 836                 $preventActiveTabs = false;
 837                 Hooks::run( 'SkinTemplatePreventOtherActiveTabs', array( &$this, &$preventActiveTabs ) );
 838
 839                 // Checks if page is some kind of content
 840                 if ( $title->canExist() ) {
 841                         // Gets page objects for the related namespaces
 842                         $subjectPage = $title->getSubjectPage();
 843                         $talkPage = $title->getTalkPage();
 844
 845                         // Determines if this is a talk page
 846                         $isTalk = $title->isTalkPage();
 847
 848                         // Generates XML IDs from namespace names
 849                         $subjectId = $title->getNamespaceKey( '' );
 850
 851                         if ( $subjectId == 'main' ) {
 852                                 $talkId = 'talk';
 853                         } else {
 854                                 $talkId = "{$subjectId}_talk";
 855                         }
 856
 857                         $skname = $this->skinname;
 858
 859                         // Adds namespace links
 860                         $subjectMsg = array( "nstab-$subjectId" );
 861                         if ( $subjectPage->isMainPage() ) {
 862                                 array_unshift( $subjectMsg, 'mainpage-nstab' );
 863                         }
 864                         $content_navigation['namespaces'][$subjectId] = $this->tabAction(
 865                                 $subjectPage, $subjectMsg, !$isTalk && !$preventActiveTabs, '', $userCanRead
 866                         );
 867                         $content_navigation['namespaces'][$subjectId]['context'] = 'subject';
 868                         $content_navigation['namespaces'][$talkId] = $this->tabAction(
 869                                 $talkPage, array( "nstab-$talkId", 'talk' ), $isTalk && !$preventActiveTabs, '', $userCanRead
 870                         );
 871                         $content_navigation['namespaces'][$talkId]['context'] = 'talk';
 872
 873                         if ( $userCanRead ) {
 874                                 $isForeignFile = $title->inNamespace( NS_FILE ) && $this->canUseWikiPage() &&
 875                                         $this->getWikiPage() instanceof WikiFilePage && !$this->getWikiPage()->isLocal();
 876
 877                                 // Adds view view link
 878                                 if ( $title->exists() || $isForeignFile ) {
 879                                         $content_navigation['views']['view'] = $this->tabAction(
 880                                                 $isTalk ? $talkPage : $subjectPage,
 881                                                 array( "$skname-view-view", 'view' ),
 882                                                 ( $onPage && ( $action == 'view' || $action == 'purge' ) ), '', true
 883                                         );
 884                                         // signal to hide this from simple content_actions
 885                                         $content_navigation['views']['view']['redundant'] = true;
 886                                 }
 887
 888                                 // If it is a non-local file, show a link to the file in its own repository
 889                                 if ( $isForeignFile ) {
 890                                         $file = $this->getWikiPage()->getFile();
 891                                         $content_navigation['views']['view-foreign'] = array(
 892                                                 'class' => '',
 893                                                 'text' => wfMessageFallback( "$skname-view-foreign", 'view-foreign' )->
 894                                                         setContext( $this->getContext() )->
 895                                                         params( $file->getRepo()->getDisplayName() )->text(),
 896                                                 'href' => $file->getDescriptionUrl(),
 897                                                 'primary' => false,
 898                                         );
 899                                 }
 900
 901                                 // Checks if user can edit the current page if it exists or create it otherwise
 902                                 if ( $title->quickUserCan( 'edit', $user )
 903                                         && ( $title->exists() || $title->quickUserCan( 'create', $user ) )
 904                                 ) {
 905                                         // Builds CSS class for talk page links
 906                                         $isTalkClass = $isTalk ? ' istalk' : '';
 907                                         // Whether the user is editing the page
 908                                         $isEditing = $onPage && ( $action == 'edit' || $action == 'submit' );
 909                                         // Whether to show the "Add a new section" tab
 910                                         // Checks if this is a current rev of talk page and is not forced to be hidden
 911                                         $showNewSection = !$out->forceHideNewSectionLink()
 912                                                 && ( ( $isTalk && $this->isRevisionCurrent() ) || $out->showNewSectionLink() );
 913                                         $section = $request->getVal( 'section' );
 914
 915                                         if ( $title->exists()
 916                                                 || ( $title->getNamespace() == NS_MEDIAWIKI
 917                                                         && $title->getDefaultMessageText() !== false
 918                                                 )
 919                                         ) {
 920                                                 $msgKey = $isForeignFile ? 'edit-local' : 'edit';
 921                                         } else {
 922                                                 $msgKey = $isForeignFile ? 'create-local' : 'create';
 923                                         }
 924                                         $content_navigation['views']['edit'] = array(
 925                                                 'class' => ( $isEditing && ( $section !== 'new' || !$showNewSection )
 926                                                         ? 'selected'
 927                                                         : ''
 928                                                 ) . $isTalkClass,
 929                                                 'text' => wfMessageFallback( "$skname-view-$msgKey", $msgKey )
 930                                                         ->setContext( $this->getContext() )->text(),
 931                                                 'href' => $title->getLocalURL( $this->editUrlOptions() ),
 932                                                 'primary' => !$isForeignFile, // don't collapse this in vector
 933                                         );
 934
 935                                         // section link
 936                                         if ( $showNewSection ) {
 937                                                 // Adds new section link
 938                                                 // $content_navigation['actions']['addsection']
 939                                                 $content_navigation['views']['addsection'] = array(
 940                                                         'class' => ( $isEditing && $section == 'new' ) ? 'selected' : false,
 941                                                         'text' => wfMessageFallback( "$skname-action-addsection", 'addsection' )
 942                                                                 ->setContext( $this->getContext() )->text(),
 943                                                         'href' => $title->getLocalURL( 'action=edit&section=new' )
 944                                                 );
 945                                         }
 946                                 // Checks if the page has some kind of viewable content
 947                                 } elseif ( $title->hasSourceText() ) {
 948                                         // Adds view source view link
 949                                         $content_navigation['views']['viewsource'] = array(
 950                                                 'class' => ( $onPage && $action == 'edit' ) ? 'selected' : false,
 951                                                 'text' => wfMessageFallback( "$skname-action-viewsource", 'viewsource' )
 952                                                         ->setContext( $this->getContext() )->text(),
 953                                                 'href' => $title->getLocalURL( $this->editUrlOptions() ),
 954                                                 'primary' => true, // don't collapse this in vector
 955                                         );
 956                                 }
 957
 958                                 // Checks if the page exists
 959                                 if ( $title->exists() ) {
 960                                         // Adds history view link
 961                                         $content_navigation['views']['history'] = array(
 962                                                 'class' => ( $onPage && $action == 'history' ) ? 'selected' : false,
 963                                                 'text' => wfMessageFallback( "$skname-view-history", 'history_short' )
 964                                                         ->setContext( $this->getContext() )->text(),
 965                                                 'href' => $title->getLocalURL( 'action=history' ),
 966                                         );
 967
 968                                         if ( $title->quickUserCan( 'delete', $user ) ) {
 969                                                 $content_navigation['actions']['delete'] = array(
 970                                                         'class' => ( $onPage && $action == 'delete' ) ? 'selected' : false,
 971                                                         'text' => wfMessageFallback( "$skname-action-delete", 'delete' )
 972                                                                 ->setContext( $this->getContext() )->text(),
 973                                                         'href' => $title->getLocalURL( 'action=delete' )
 974                                                 );
 975                                         }
 976
 977                                         if ( $title->quickUserCan( 'move', $user ) ) {
 978                                                 $moveTitle = SpecialPage::getTitleFor( 'Movepage', $title->getPrefixedDBkey() );
 979                                                 $content_navigation['actions']['move'] = array(
 980                                                         'class' => $this->getTitle()->isSpecial( 'Movepage' ) ? 'selected' : false,
 981                                                         'text' => wfMessageFallback( "$skname-action-move", 'move' )
 982                                                                 ->setContext( $this->getContext() )->text(),
 983                                                         'href' => $moveTitle->getLocalURL()
 984                                                 );
 985                                         }
 986                                 } else {
 987                                         // article doesn't exist or is deleted
 988                                         if ( $user->isAllowed( 'deletedhistory' ) ) {
 989                                                 $n = $title->isDeleted();
 990                                                 if ( $n ) {
 991                                                         $undelTitle = SpecialPage::getTitleFor( 'Undelete', $title->getPrefixedDBkey() );
 992                                                         // If the user can't undelete but can view deleted
 993                                                         // history show them a "View .. deleted" tab instead.
 994                                                         $msgKey = $user->isAllowed( 'undelete' ) ? 'undelete' : 'viewdeleted';
 995                                                         $content_navigation['actions']['undelete'] = array(
 996                                                                 'class' => $this->getTitle()->isSpecial( 'Undelete' ) ? 'selected' : false,
 997                                                                 'text' => wfMessageFallback( "$skname-action-$msgKey", "{$msgKey}_short" )
 998                                                                         ->setContext( $this->getContext() )->numParams( $n )->text(),
 999                                                                 'href' => $undelTitle->getLocalURL()
1000                                                         );
1001                                                 }
1002                                         }
1003                                 }
1004
1005                                 if ( $title->quickUserCan( 'protect', $user ) && $title->getRestrictionTypes() &&
1006                                         MWNamespace::getRestrictionLevels( $title->getNamespace(), $user ) !== array( '' )
1007                                 ) {
1008                                         $mode = $title->isProtected() ? 'unprotect' : 'protect';
1009                                         $content_navigation['actions'][$mode] = array(
1010                                                 'class' => ( $onPage && $action == $mode ) ? 'selected' : false,
1011                                                 'text' => wfMessageFallback( "$skname-action-$mode", $mode )
1012                                                         ->setContext( $this->getContext() )->text(),
1013                                                 'href' => $title->getLocalURL( "action=$mode" )
1014                                         );
1015                                 }
1016
1017                                 // Checks if the user is logged in
1018                                 if ( $this->loggedin && $user->isAllowedAll( 'viewmywatchlist', 'editmywatchlist' ) ) {
1019                                         /**
1020                                          * The following actions use messages which, if made particular to
1021                                          * the any specific skins, would break the Ajax code which makes this
1022                                          * action happen entirely inline. OutputPage::getJSVars
1023                                          * defines a set of messages in a javascript object - and these
1024                                          * messages are assumed to be global for all skins. Without making
1025                                          * a change to that procedure these messages will have to remain as
1026                                          * the global versions.
1027                                          */
1028                                         $mode = $user->isWatched( $title ) ? 'unwatch' : 'watch';
1029                                         $content_navigation['actions'][$mode] = array(
1030                                                 'class' => 'mw-watchlink ' . (
1031                                                         $onPage && ( $action == 'watch' || $action == 'unwatch' ) ? 'selected' : ''
1032                                                 ),
1033                                                 // uses 'watch' or 'unwatch' message
1034                                                 'text' => $this->msg( $mode )->text(),
1035                                                 'href' => $title->getLocalURL( array( 'action' => $mode ) )
1036                                         );
1037                                 }
1038                         }
1039
1040                         Hooks::run( 'SkinTemplateNavigation', array( &$this, &$content_navigation ) );
1041
1042                         if ( $userCanRead && !$wgDisableLangConversion ) {
1043                                 $pageLang = $title->getPageLanguage();
1044                                 // Gets list of language variants
1045                                 $variants = $pageLang->getVariants();
1046                                 // Checks that language conversion is enabled and variants exist
1047                                 // And if it is not in the special namespace
1048                                 if ( count( $variants ) > 1 ) {
1049                                         // Gets preferred variant (note that user preference is
1050                                         // only possible for wiki content language variant)
1051                                         $preferred = $pageLang->getPreferredVariant();
1052                                         if ( Action::getActionName( $this ) === 'view' ) {
1053                                                 $params = $request->getQueryValues();
1054                                                 unset( $params['title'] );
1055                                         } else {
1056                                                 $params = array();
1057                                         }
1058                                         // Loops over each variant
1059                                         foreach ( $variants as $code ) {
1060                                                 // Gets variant name from language code
1061                                                 $varname = $pageLang->getVariantname( $code );
1062                                                 // Appends variant link
1063                                                 $content_navigation['variants'][] = array(
1064                                                         'class' => ( $code == $preferred ) ? 'selected' : false,
1065                                                         'text' => $varname,
1066                                                         'href' => $title->getLocalURL( array( 'variant' => $code ) + $params ),
1067                                                         'lang' => wfBCP47( $code ),
1068                                                         'hreflang' => wfBCP47( $code ),
1069                                                 );
1070                                         }
1071                                 }
1072                         }
1073                 } else {
1074                         // If it's not content, it's got to be a special page
1075                         $content_navigation['namespaces']['special'] = array(
1076                                 'class' => 'selected',
1077                                 'text' => $this->msg( 'nstab-special' )->text(),
1078                                 'href' => $request->getRequestURL(), // @see: bug 2457, bug 2510
1079                                 'context' => 'subject'
1080                         );
1081
1082                         Hooks::run( 'SkinTemplateNavigation::SpecialPage',
1083                                 array( &$this, &$content_navigation ) );
1084                 }
1085
1086                 // Equiv to SkinTemplateContentActions
1087                 Hooks::run( 'SkinTemplateNavigation::Universal', array( &$this, &$content_navigation ) );
1088
1089                 // Setup xml ids and tooltip info
1090                 foreach ( $content_navigation as $section => &$links ) {
1091                         foreach ( $links as $key => &$link ) {
1092                                 $xmlID = $key;
1093                                 if ( isset( $link['context'] ) && $link['context'] == 'subject' ) {
1094                                         $xmlID = 'ca-nstab-' . $xmlID;
1095                                 } elseif ( isset( $link['context'] ) && $link['context'] == 'talk' ) {
1096                                         $xmlID = 'ca-talk';
1097                                         $link['rel'] = 'discussion';
1098                                 } elseif ( $section == 'variants' ) {
1099                                         $xmlID = 'ca-varlang-' . $xmlID;
1100                                 } else {
1101                                         $xmlID = 'ca-' . $xmlID;
1102                                 }
1103                                 $link['id'] = $xmlID;
1104                         }
1105                 }
1106
1107                 # We don't want to give the watch tab an accesskey if the
1108                 # page is being edited, because that conflicts with the
1109                 # accesskey on the watch checkbox.  We also don't want to
1110                 # give the edit tab an accesskey, because that's fairly
1111                 # superfluous and conflicts with an accesskey (Ctrl-E) often
1112                 # used for editing in Safari.
1113                 if ( in_array( $action, array( 'edit', 'submit' ) ) ) {
1114                         if ( isset( $content_navigation['views']['edit'] ) ) {
1115                                 $content_navigation['views']['edit']['tooltiponly'] = true;
1116                         }
1117                         if ( isset( $content_navigation['actions']['watch'] ) ) {
1118                                 $content_navigation['actions']['watch']['tooltiponly'] = true;
1119                         }
1120                         if ( isset( $content_navigation['actions']['unwatch'] ) ) {
1121                                 $content_navigation['actions']['unwatch']['tooltiponly'] = true;
1122                         }
1123                 }
1124
1125                 return $content_navigation;
1126         }
1127
1128         /**
1129          * an array of edit links by default used for the tabs
1130          * @param array $content_navigation
1131          * @return array
1132          */
1133         private function buildContentActionUrls( $content_navigation ) {
1134
1135                 // content_actions has been replaced with content_navigation for backwards
1136                 // compatibility and also for skins that just want simple tabs content_actions
1137                 // is now built by flattening the content_navigation arrays into one
1138
1139                 $content_actions = array();
1140
1141                 foreach ( $content_navigation as $links ) {
1142                         foreach ( $links as $key => $value ) {
1143                                 if ( isset( $value['redundant'] ) && $value['redundant'] ) {
1144                                         // Redundant tabs are dropped from content_actions
1145                                         continue;
1146                                 }
1147
1148                                 // content_actions used to have ids built using the "ca-$key" pattern
1149                                 // so the xmlID based id is much closer to the actual $key that we want
1150                                 // for that reason we'll just strip out the ca- if present and use
1151                                 // the latter potion of the "id" as the $key
1152                                 if ( isset( $value['id'] ) && substr( $value['id'], 0, 3 ) == 'ca-' ) {
1153                                         $key = substr( $value['id'], 3 );
1154                                 }
1155
1156                                 if ( isset( $content_actions[$key] ) ) {
1157                                         wfDebug( __METHOD__ . ": Found a duplicate key for $key while flattening " .
1158                                                 "content_navigation into content_actions.\n" );
1159                                         continue;
1160                                 }
1161
1162                                 $content_actions[$key] = $value;
1163                         }
1164                 }
1165
1166                 return $content_actions;
1167         }
1168
1169         /**
1170          * build array of common navigation links
1171          * @return array
1172          */
1173         protected function buildNavUrls() {
1174                 global $wgUploadNavigationUrl;
1175
1176                 $out = $this->getOutput();
1177                 $request = $this->getRequest();
1178
1179                 $nav_urls = array();
1180                 $nav_urls['mainpage'] = array( 'href' => self::makeMainPageUrl() );
1181                 if ( $wgUploadNavigationUrl ) {
1182                         $nav_urls['upload'] = array( 'href' => $wgUploadNavigationUrl );
1183                 } elseif ( UploadBase::isEnabled() && UploadBase::isAllowed( $this->getUser() ) === true ) {
1184                         $nav_urls['upload'] = array( 'href' => self::makeSpecialUrl( 'Upload' ) );
1185                 } else {
1186                         $nav_urls['upload'] = false;
1187                 }
1188                 $nav_urls['specialpages'] = array( 'href' => self::makeSpecialUrl( 'Specialpages' ) );
1189
1190                 $nav_urls['print'] = false;
1191                 $nav_urls['permalink'] = false;
1192                 $nav_urls['info'] = false;
1193                 $nav_urls['whatlinkshere'] = false;
1194                 $nav_urls['recentchangeslinked'] = false;
1195                 $nav_urls['contributions'] = false;
1196                 $nav_urls['log'] = false;
1197                 $nav_urls['blockip'] = false;
1198                 $nav_urls['emailuser'] = false;
1199                 $nav_urls['userrights'] = false;
1200
1201                 // A print stylesheet is attached to all pages, but nobody ever
1202                 // figures that out. :)  Add a link...
1203                 if ( !$out->isPrintable() && ( $out->isArticle() || $this->getTitle()->isSpecialPage() ) ) {
1204                         $nav_urls['print'] = array(
1205                                 'text' => $this->msg( 'printableversion' )->text(),
1206                                 'href' => $this->getTitle()->getLocalURL(
1207                                         $request->appendQueryValue( 'printable', 'yes' ) )
1208                         );
1209                 }
1210
1211                 if ( $out->isArticle() ) {
1212                         // Also add a "permalink" while we're at it
1213                         $revid = $this->getRevisionId();
1214                         if ( $revid ) {
1215                                 $nav_urls['permalink'] = array(
1216                                         'text' => $this->msg( 'permalink' )->text(),
1217                                         'href' => $this->getTitle()->getLocalURL( "oldid=$revid" )
1218                                 );
1219                         }
1220
1221                         // Use the copy of revision ID in case this undocumented, shady hook tries to mess with internals
1222                         Hooks::run( 'SkinTemplateBuildNavUrlsNav_urlsAfterPermalink',
1223                                 array( &$this, &$nav_urls, &$revid, &$revid ) );
1224                 }
1225
1226                 if ( $out->isArticleRelated() ) {
1227                         $nav_urls['whatlinkshere'] = array(
1228                                 'href' => SpecialPage::getTitleFor( 'Whatlinkshere', $this->thispage )->getLocalURL()
1229                         );
1230
1231                         $nav_urls['info'] = array(
1232                                 'text' => $this->msg( 'pageinfo-toolboxlink' )->text(),
1233                                 'href' => $this->getTitle()->getLocalURL( "action=info" )
1234                         );
1235
1236                         if ( $this->getTitle()->exists() ) {
1237                                 $nav_urls['recentchangeslinked'] = array(
1238                                         'href' => SpecialPage::getTitleFor( 'Recentchangeslinked', $this->thispage )->getLocalURL()
1239                                 );
1240                         }
1241                 }
1242
1243                 $user = $this->getRelevantUser();
1244                 if ( $user ) {
1245                         $rootUser = $user->getName();
1246
1247                         $nav_urls['contributions'] = array(
1248                                 'text' => $this->msg( 'contributions', $rootUser )->text(),
1249                                 'href' => self::makeSpecialUrlSubpage( 'Contributions', $rootUser ),
1250                                 'tooltip-params' => array( $rootUser ),
1251                         );
1252
1253                         $nav_urls['log'] = array(
1254                                 'href' => self::makeSpecialUrlSubpage( 'Log', $rootUser )
1255                         );
1256
1257                         if ( $this->getUser()->isAllowed( 'block' ) ) {
1258                                 $nav_urls['blockip'] = array(
1259                                         'text' => $this->msg( 'blockip', $rootUser )->text(),
1260                                         'href' => self::makeSpecialUrlSubpage( 'Block', $rootUser )
1261                                 );
1262                         }
1263
1264                         if ( $this->showEmailUser( $user ) ) {
1265                                 $nav_urls['emailuser'] = array(
1266                                         'href' => self::makeSpecialUrlSubpage( 'Emailuser', $rootUser ),
1267                                         'tooltip-params' => array( $rootUser ),
1268                                 );
1269                         }
1270
1271                         if ( !$user->isAnon() ) {
1272                                 $sur = new UserrightsPage;
1273                                 $sur->setContext( $this->getContext() );
1274                                 if ( $sur->userCanExecute( $this->getUser() ) ) {
1275                                         $nav_urls['userrights'] = array(
1276                                                 'href' => self::makeSpecialUrlSubpage( 'Userrights', $rootUser )
1277                                         );
1278                                 }
1279                         }
1280                 }
1281
1282                 return $nav_urls;
1283         }
1284
1285         /**
1286          * Generate strings used for xml 'id' names
1287          * @return string
1288          */
1289         protected function getNameSpaceKey() {
1290                 return $this->getTitle()->getNamespaceKey();
1291         }
1292 }