includes/SkinTemplate.php

   1 <?php
   2 /**
   3  * Base class for template-based skins
   4  *
   5  * This program is free software; you can redistribute it and/or modify
   6  * it under the terms of the GNU General Public License as published by
   7  * the Free Software Foundation; either version 2 of the License, or
   8  * (at your option) any later version.
   9  *
  10  * This program is distributed in the hope that it will be useful,
  11  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
  13  * GNU General Public License for more details.
  14  *
  15  * You should have received a copy of the GNU General Public License along
  16  * with this program; if not, write to the Free Software Foundation, Inc.,
  17  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
  18  * http://www.gnu.org/copyleft/gpl.html
  19  *
  20  * @file
  21  */
  22
  23 if ( !defined( 'MEDIAWIKI' ) ) {
  24         die( 1 );
  25 }
  26
  27 /**
  28  * Wrapper object for MediaWiki's localization functions,
  29  * to be passed to the template engine.
  30  *
  31  * @private
  32  * @ingroup Skins
  33  */
  34 class MediaWiki_I18N {
  35         var $_context = array();
  36
  37         function set( $varName, $value ) {
  38                 $this->_context[$varName] = $value;
  39         }
  40
  41         function translate( $value ) {
  42                 wfProfileIn( __METHOD__ );
  43
  44                 // Hack for i18n:attributes in PHPTAL 1.0.0 dev version as of 2004-10-23
  45                 $value = preg_replace( '/^string:/', '', $value );
  46
  47                 $value = wfMsg( $value );
  48                 // interpolate variables
  49                 $m = array();
  50                 while( preg_match( '/\$([0-9]*?)/sm', $value, $m ) ) {
  51                         list( $src, $var ) = $m;
  52                         wfSuppressWarnings();
  53                         $varValue = $this->_context[$var];
  54                         wfRestoreWarnings();
  55                         $value = str_replace( $src, $varValue, $value );
  56                 }
  57                 wfProfileOut( __METHOD__ );
  58                 return $value;
  59         }
  60 }
  61
  62 /**
  63  * Template-filler skin base class
  64  * Formerly generic PHPTal (http://phptal.sourceforge.net/) skin
  65  * Based on Brion's smarty skin
  66  * @copyright Copyright © Gabriel Wicke -- http://www.aulinx.de/
  67  *
  68  * @todo Needs some serious refactoring into functions that correspond
  69  * to the computations individual esi snippets need. Most importantly no body
  70  * parsing for most of those of course.
  71  *
  72  * @ingroup Skins
  73  */
  74 class SkinTemplate extends Skin {
  75         /**#@+
  76          * @private
  77          */
  78
  79         /**
  80          * Name of our skin, it probably needs to be all lower case.  Child classes
  81          * should override the default.
  82          */
  83         var $skinname = 'monobook';
  84
  85         /**
  86          * Stylesheets set to use.  Subdirectory in skins/ where various stylesheets
  87          * are located.  Child classes should override the default.
  88          */
  89         var $stylename = 'monobook';
  90
  91         /**
  92          * For QuickTemplate, the name of the subclass which will actually fill the
  93          * template.  Child classes should override the default.
  94          */
  95         var $template = 'QuickTemplate';
  96
  97         /**
  98          * Whether this skin use OutputPage::headElement() to generate the <head>
  99          * tag
 100          */
 101         var $useHeadElement = false;
 102
 103         /**#@-*/
 104
 105         /**
 106          * Add specific styles for this skin
 107          *
 108          * @param $out OutputPage
 109          */
 110         function setupSkinUserCss( OutputPage $out ){
 111                 $out->addModuleStyles( array( 'mediawiki.legacy.shared', 'mediawiki.legacy.commonPrint' ) );
 112         }
 113
 114         /**
 115          * Create the template engine object; we feed it a bunch of data
 116          * and eventually it spits out some HTML. Should have interface
 117          * roughly equivalent to PHPTAL 0.7.
 118          *
 119          * @param $classname string (or file)
 120          * @param $repository string: subdirectory where we keep template files
 121          * @param $cache_dir string
 122          * @return object
 123          * @private
 124          */
 125         function setupTemplate( $classname, $repository = false, $cache_dir = false ) {
 126                 return new $classname();
 127         }
 128
 129         /**
 130          * initialize various variables and generate the template
 131          *
 132          * @param $out OutputPage
 133          */
 134         function outputPage( OutputPage $out ) {
 135                 global $wgArticle, $wgUser, $wgLang, $wgContLang;
 136                 global $wgScript, $wgStylePath, $wgLanguageCode;
 137                 global $wgMimeType, $wgJsMimeType, $wgOutputEncoding, $wgRequest;
 138                 global $wgXhtmlDefaultNamespace, $wgXhtmlNamespaces, $wgHtml5Version;
 139                 global $wgDisableCounters, $wgLogo, $wgHideInterlanguageLinks;
 140                 global $wgMaxCredits, $wgShowCreditsIfMax;
 141                 global $wgPageShowWatchingUsers;
 142                 global $wgUseTrackbacks, $wgUseSiteJs, $wgDebugComments;
 143                 global $wgArticlePath, $wgScriptPath, $wgServer, $wgProfiler;
 144
 145                 wfProfileIn( __METHOD__ );
 146                 if ( is_object( $wgProfiler ) ) {
 147                         $wgProfiler->setTemplated( true );
 148                 }
 149
 150                 $oldid = $wgRequest->getVal( 'oldid' );
 151                 $diff = $wgRequest->getVal( 'diff' );
 152                 $action = $wgRequest->getVal( 'action', 'view' );
 153
 154                 wfProfileIn( __METHOD__ . '-init' );
 155                 $this->initPage( $out );
 156
 157                 $this->setMembers();
 158                 $tpl = $this->setupTemplate( $this->template, 'skins' );
 159
 160                 #if ( $wgUseDatabaseMessages ) { // uncomment this to fall back to GetText
 161                 $tpl->setTranslator( new MediaWiki_I18N() );
 162                 #}
 163                 wfProfileOut( __METHOD__ . '-init' );
 164
 165                 wfProfileIn( __METHOD__ . '-stuff' );
 166                 $this->thispage = $this->mTitle->getPrefixedDBkey();
 167                 $this->thisurl = $this->mTitle->getPrefixedURL();
 168                 $query = array();
 169                 if ( !$wgRequest->wasPosted() ) {
 170                         $query = $wgRequest->getValues();
 171                         unset( $query['title'] );
 172                         unset( $query['returnto'] );
 173                         unset( $query['returntoquery'] );
 174                 }
 175                 $this->thisquery = wfUrlencode( wfArrayToCGI( $query ) );
 176                 $this->loggedin = $wgUser->isLoggedIn();
 177                 $this->iscontent = ( $this->mTitle->getNamespace() != NS_SPECIAL );
 178                 $this->iseditable = ( $this->iscontent and !( $action == 'edit' or $action == 'submit' ) );
 179                 $this->username = $wgUser->getName();
 180
 181                 if ( $wgUser->isLoggedIn() || $this->showIPinHeader() ) {
 182                         $this->userpageUrlDetails = self::makeUrlDetails( $this->userpage );
 183                 } else {
 184                         # This won't be used in the standard skins, but we define it to preserve the interface
 185                         # To save time, we check for existence
 186                         $this->userpageUrlDetails = self::makeKnownUrlDetails( $this->userpage );
 187                 }
 188
 189                 $this->titletxt = $this->mTitle->getPrefixedText();
 190                 wfProfileOut( __METHOD__ . '-stuff' );
 191
 192                 wfProfileIn( __METHOD__ . '-stuff-head' );
 193                 if ( $this->useHeadElement ) {
 194                         $pagecss = $this->setupPageCss();
 195                         if( $pagecss )
 196                                 $out->addInlineStyle( $pagecss );
 197                 } else {
 198                         $this->setupUserCss( $out );
 199
 200                         $tpl->set( 'pagecss', $this->setupPageCss() );
 201                         $tpl->setRef( 'usercss', $this->usercss );
 202
 203                         $this->userjs = $this->userjsprev = false;
 204                         $this->setupUserJs( $out->isUserJsAllowed() );
 205                         $tpl->setRef( 'userjs', $this->userjs );
 206                         $tpl->setRef( 'userjsprev', $this->userjsprev );
 207
 208                         if( $wgUseSiteJs ) {
 209                                 $jsCache = $this->loggedin ? '&smaxage=0' : '';
 210                                 $tpl->set( 'jsvarurl',
 211                                                   self::makeUrl( '-',
 212                                                                                 "action=raw$jsCache&gen=js&useskin=" .
 213                                                                                 urlencode( $this->getSkinName() ) ) );
 214                         } else {
 215                                 $tpl->set( 'jsvarurl', false );
 216                         }
 217
 218                         $tpl->setRef( 'xhtmldefaultnamespace', $wgXhtmlDefaultNamespace );
 219                         $tpl->set( 'xhtmlnamespaces', $wgXhtmlNamespaces );
 220                         $tpl->set( 'html5version', $wgHtml5Version );
 221                         $tpl->set( 'headlinks', $out->getHeadLinks( $this ) );
 222                         $tpl->set( 'csslinks', $out->buildCssLinks() );
 223
 224                         if( $wgUseTrackbacks && $out->isArticleRelated() ) {
 225                                 $tpl->set( 'trackbackhtml', $out->getTitle()->trackbackRDF() );
 226                         } else {
 227                                 $tpl->set( 'trackbackhtml', null );
 228                         }
 229                 }
 230                 wfProfileOut( __METHOD__ . '-stuff-head' );
 231
 232                 wfProfileIn( __METHOD__ . '-stuff2' );
 233                 $tpl->set( 'title', $out->getPageTitle() );
 234                 $tpl->set( 'pagetitle', $out->getHTMLTitle() );
 235                 $tpl->set( 'displaytitle', $out->mPageLinkTitle );
 236                 $tpl->set( 'pageclass', $this->getPageClasses( $this->mTitle ) );
 237                 $tpl->set( 'skinnameclass', ( 'skin-' . Sanitizer::escapeClass( $this->getSkinName() ) ) );
 238
 239                 $nsname = MWNamespace::exists( $this->mTitle->getNamespace() ) ?
 240                                         MWNamespace::getCanonicalName( $this->mTitle->getNamespace() ) :
 241                                         $this->mTitle->getNsText();
 242
 243                 $tpl->set( 'nscanonical', $nsname );
 244                 $tpl->set( 'nsnumber', $this->mTitle->getNamespace() );
 245                 $tpl->set( 'titleprefixeddbkey', $this->mTitle->getPrefixedDBKey() );
 246                 $tpl->set( 'titletext', $this->mTitle->getText() );
 247                 $tpl->set( 'articleid', $this->mTitle->getArticleId() );
 248                 $tpl->set( 'currevisionid', isset( $wgArticle ) ? $wgArticle->getLatest() : 0 );
 249
 250                 $tpl->set( 'isarticle', $out->isArticle() );
 251
 252                 $tpl->setRef( 'thispage', $this->thispage );
 253                 $subpagestr = $this->subPageSubtitle();
 254                 $tpl->set(
 255                         'subtitle', !empty( $subpagestr ) ?
 256                         '<span class="subpages">' . $subpagestr . '</span>' . $out->getSubtitle() :
 257                         $out->getSubtitle()
 258                 );
 259                 $undelete = $this->getUndeleteLink();
 260                 $tpl->set(
 261                         'undelete', !empty( $undelete ) ?
 262                         '<span class="subpages">' . $undelete . '</span>' :
 263                         ''
 264                 );
 265
 266                 $tpl->set( 'catlinks', $this->getCategories() );
 267                 if( $out->isSyndicated() ) {
 268                         $feeds = array();
 269                         foreach( $out->getSyndicationLinks() as $format => $link ) {
 270                                 $feeds[$format] = array(
 271                                         'text' => wfMsg( "feed-$format" ),
 272                                         'href' => $link
 273                                 );
 274                         }
 275                         $tpl->setRef( 'feeds', $feeds );
 276                 } else {
 277                         $tpl->set( 'feeds', false );
 278                 }
 279
 280                 $tpl->setRef( 'mimetype', $wgMimeType );
 281                 $tpl->setRef( 'jsmimetype', $wgJsMimeType );
 282                 $tpl->setRef( 'charset', $wgOutputEncoding );
 283                 $tpl->setRef( 'wgScript', $wgScript );
 284                 $tpl->setRef( 'skinname', $this->skinname );
 285                 $tpl->set( 'skinclass', get_class( $this ) );
 286                 $tpl->setRef( 'stylename', $this->stylename );
 287                 $tpl->set( 'printable', $out->isPrintable() );
 288                 $tpl->set( 'handheld', $wgRequest->getBool( 'handheld' ) );
 289                 $tpl->setRef( 'loggedin', $this->loggedin );
 290                 $tpl->set( 'notspecialpage', $this->mTitle->getNamespace() != NS_SPECIAL );
 291                 /* XXX currently unused, might get useful later
 292                 $tpl->set( 'editable', ( $this->mTitle->getNamespace() != NS_SPECIAL ) );
 293                 $tpl->set( 'exists', $this->mTitle->getArticleID() != 0 );
 294                 $tpl->set( 'watch', $this->mTitle->userIsWatching() ? 'unwatch' : 'watch' );
 295                 $tpl->set( 'protect', count( $this->mTitle->isProtected() ) ? 'unprotect' : 'protect' );
 296                 $tpl->set( 'helppage', wfMsg( 'helppage' ) );
 297                 */
 298                 $tpl->set( 'searchaction', $this->escapeSearchLink() );
 299                 $tpl->set( 'searchtitle', SpecialPage::getTitleFor( 'Search' )->getPrefixedDBKey() );
 300                 $tpl->set( 'search', trim( $wgRequest->getVal( 'search' ) ) );
 301                 $tpl->setRef( 'stylepath', $wgStylePath );
 302                 $tpl->setRef( 'articlepath', $wgArticlePath );
 303                 $tpl->setRef( 'scriptpath', $wgScriptPath );
 304                 $tpl->setRef( 'serverurl', $wgServer );
 305                 $tpl->setRef( 'logopath', $wgLogo );
 306
 307                 $lang = wfUILang();
 308                 $tpl->set( 'lang', $lang->getCode() );
 309                 $tpl->set( 'dir', $lang->getDir() );
 310                 $tpl->set( 'rtl', $lang->isRTL() );
 311
 312                 $tpl->set( 'capitalizeallnouns', $wgLang->capitalizeAllNouns() ? ' capitalize-all-nouns' : '' );
 313                 $tpl->set( 'showjumplinks', $wgUser->getOption( 'showjumplinks' ) );
 314                 $tpl->set( 'username', $wgUser->isAnon() ? null : $this->username );
 315                 $tpl->setRef( 'userpage', $this->userpage );
 316                 $tpl->setRef( 'userpageurl', $this->userpageUrlDetails['href'] );
 317                 $tpl->set( 'userlang', $wgLang->getCode() );
 318
 319                 // Users can have their language set differently than the
 320                 // content of the wiki. For these users, tell the web browser
 321                 // that interface elements are in a different language.
 322                 $tpl->set( 'userlangattributes', '' );
 323                 $tpl->set( 'specialpageattributes', '' );
 324
 325                 $lang = $wgLang->getCode();
 326                 $dir  = $wgLang->getDir();
 327                 if ( $lang !== $wgContLang->getCode() || $dir !== $wgContLang->getDir() ) {
 328                         $attrs = " lang='$lang' dir='$dir'";
 329
 330                         $tpl->set( 'userlangattributes', $attrs );
 331
 332                         // The content of SpecialPages should be presented in the
 333                         // user's language. Content of regular pages should not be touched.
 334                         if( $this->mTitle->isSpecialPage() ) {
 335                                 $tpl->set( 'specialpageattributes', $attrs );
 336                         }
 337                 }
 338
 339                 $newtalks = $this->getNewtalks();
 340
 341                 wfProfileOut( __METHOD__ . '-stuff2' );
 342
 343                 wfProfileIn( __METHOD__ . '-stuff3' );
 344                 $tpl->setRef( 'newtalk', $newtalks );
 345                 $tpl->setRef( 'skin', $this );
 346                 $tpl->set( 'logo', $this->logoText() );
 347                 if ( $out->isArticle() && ( !isset( $oldid ) || isset( $diff ) ) &&
 348                         $wgArticle && 0 != $wgArticle->getID() ){
 349                         if ( !$wgDisableCounters ) {
 350                                 $viewcount = $wgLang->formatNum( $wgArticle->getCount() );
 351                                 if ( $viewcount ) {
 352                                         $tpl->set( 'viewcount', wfMsgExt( 'viewcount', array( 'parseinline' ), $viewcount ) );
 353                                 } else {
 354                                         $tpl->set( 'viewcount', false );
 355                                 }
 356                         } else {
 357                                 $tpl->set( 'viewcount', false );
 358                         }
 359
 360                         if( $wgPageShowWatchingUsers ) {
 361                                 $dbr = wfGetDB( DB_SLAVE );
 362                                 $res = $dbr->select( 'watchlist',
 363                                         array( 'COUNT(*) AS n' ),
 364                                         array( 'wl_title' => $dbr->strencode( $this->mTitle->getDBkey() ), 'wl_namespace' => $this->mTitle->getNamespace() ),
 365                                         __METHOD__
 366                                 );
 367                                 $x = $dbr->fetchObject( $res );
 368                                 $numberofwatchingusers = $x->n;
 369                                 if( $numberofwatchingusers > 0 ) {
 370                                         $tpl->set( 'numberofwatchingusers',
 371                                                 wfMsgExt( 'number_of_watching_users_pageview', array( 'parseinline' ),
 372                                                 $wgLang->formatNum( $numberofwatchingusers ) )
 373                                         );
 374                                 } else {
 375                                         $tpl->set( 'numberofwatchingusers', false );
 376                                 }
 377                         } else {
 378                                 $tpl->set( 'numberofwatchingusers', false );
 379                         }
 380
 381                         $tpl->set( 'copyright', $this->getCopyright() );
 382
 383                         $this->credits = false;
 384
 385                         if( $wgMaxCredits != 0 ){
 386                                 $this->credits = Credits::getCredits( $wgArticle, $wgMaxCredits, $wgShowCreditsIfMax );
 387                         } else {
 388                                 $tpl->set( 'lastmod', $this->lastModified() );
 389                         }
 390
 391                         $tpl->setRef( 'credits', $this->credits );
 392
 393                 } elseif ( isset( $oldid ) && !isset( $diff ) ) {
 394                         $tpl->set( 'copyright', $this->getCopyright() );
 395                         $tpl->set( 'viewcount', false );
 396                         $tpl->set( 'lastmod', false );
 397                         $tpl->set( 'credits', false );
 398                         $tpl->set( 'numberofwatchingusers', false );
 399                 } else {
 400                         $tpl->set( 'copyright', false );
 401                         $tpl->set( 'viewcount', false );
 402                         $tpl->set( 'lastmod', false );
 403                         $tpl->set( 'credits', false );
 404                         $tpl->set( 'numberofwatchingusers', false );
 405                 }
 406                 wfProfileOut( __METHOD__ . '-stuff3' );
 407
 408                 wfProfileIn( __METHOD__ . '-stuff4' );
 409                 $tpl->set( 'copyrightico', $this->getCopyrightIcon() );
 410                 $tpl->set( 'poweredbyico', $this->getPoweredBy() );
 411                 $tpl->set( 'disclaimer', $this->disclaimerLink() );
 412                 $tpl->set( 'privacy', $this->privacyLink() );
 413                 $tpl->set( 'about', $this->aboutLink() );
 414
 415                 $tpl->set( 'footerlinks', array(
 416                         'info' => array(
 417                                 'lastmod',
 418                                 'viewcount',
 419                                 'numberofwatchingusers',
 420                                 'credits',
 421                                 'copyright',
 422                         ),
 423                         'places' => array(
 424                                 'privacy',
 425                                 'about',
 426                                 'disclaimer',
 427                         ),
 428                 ) );
 429
 430                 global $wgFooterIcons;
 431                 $tpl->set( 'footericons', $wgFooterIcons );
 432                 foreach ( $tpl->data['footericons'] as $footerIconsKey => &$footerIconsBlock ) {
 433                         if ( count( $footerIconsBlock ) > 0 ) {
 434                                 foreach ( $footerIconsBlock as &$footerIcon ) {
 435                                         if ( isset( $footerIcon['src'] ) ) {
 436                                                 if ( !isset( $footerIcon['width'] ) ) {
 437                                                         $footerIcon['width'] = 88;
 438                                                 }
 439                                                 if ( !isset( $footerIcon['height'] ) ) {
 440                                                         $footerIcon['height'] = 31;
 441                                                 }
 442                                         }
 443                                 }
 444                         } else {
 445                                 unset( $tpl->data['footericons'][$footerIconsKey] );
 446                         }
 447                 }
 448
 449                 if ( $wgDebugComments ) {
 450                         $tpl->setRef( 'debug', $out->mDebugtext );
 451                 } else {
 452                         $tpl->set( 'debug', '' );
 453                 }
 454
 455                 $tpl->set( 'reporttime', wfReportTime() );
 456                 $tpl->set( 'sitenotice', wfGetSiteNotice() );
 457                 $tpl->set( 'bottomscripts', $this->bottomScripts( $out ) );
 458
 459                 $printfooter = "<div class=\"printfooter\">\n" . $this->printSource() . "</div>\n";
 460                 global $wgBetterDirectionality;
 461                 if ( $wgBetterDirectionality ) {
 462                         $realBodyAttribs = array( 'lang' => $wgLanguageCode, 'dir' => $wgContLang->getDir() );
 463                         $out->mBodytext = Html::rawElement( 'div', $realBodyAttribs, $out->mBodytext );
 464                 }
 465                 $out->mBodytext .= $printfooter . $this->generateDebugHTML();
 466                 $tpl->setRef( 'bodytext', $out->mBodytext );
 467
 468                 # Language links
 469                 $language_urls = array();
 470
 471                 if ( !$wgHideInterlanguageLinks ) {
 472                         foreach( $out->getLanguageLinks() as $l ) {
 473                                 $tmp = explode( ':', $l, 2 );
 474                                 $class = 'interwiki-' . $tmp[0];
 475                                 unset( $tmp );
 476                                 $nt = Title::newFromText( $l );
 477                                 if ( $nt ) {
 478                                         $language_urls[] = array(
 479                                                 'href' => $nt->getFullURL(),
 480                                                 'text' => ( $wgContLang->getLanguageName( $nt->getInterwiki() ) != '' ?
 481                                                                         $wgContLang->getLanguageName( $nt->getInterwiki() ) : $l ),
 482                                                 'title' => $nt->getText(),
 483                                                 'class' => $class
 484                                         );
 485                                 }
 486                         }
 487                 }
 488                 if( count( $language_urls ) ) {
 489                         $tpl->setRef( 'language_urls', $language_urls );
 490                 } else {
 491                         $tpl->set( 'language_urls', false );
 492                 }
 493                 wfProfileOut( __METHOD__ . '-stuff4' );
 494
 495                 wfProfileIn( __METHOD__ . '-stuff5' );
 496                 # Personal toolbar
 497                 $tpl->set( 'personal_urls', $this->buildPersonalUrls() );
 498                 $content_navigation = $this->buildContentNavigationUrls();
 499                 $content_actions = $this->buildContentActionUrls( $content_navigation );
 500                 $tpl->setRef( 'content_navigation', $content_navigation );
 501                 $tpl->setRef( 'content_actions', $content_actions );
 502
 503                 $tpl->set( 'sidebar', $this->buildSidebar() );
 504                 $tpl->set( 'nav_urls', $this->buildNavUrls() );
 505
 506                 // Set the head scripts near the end, in case the above actions resulted in added scripts
 507                 if ( $this->useHeadElement ) {
 508                         $tpl->set( 'headelement', $out->headElement( $this ) );
 509                 } else {
 510                         $tpl->set( 'headscripts', $out->getScript() );
 511                 }
 512
 513                 // original version by hansm
 514                 if( !wfRunHooks( 'SkinTemplateOutputPageBeforeExec', array( &$this, &$tpl ) ) ) {
 515                         wfDebug( __METHOD__ . ": Hook SkinTemplateOutputPageBeforeExec broke outputPage execution!\n" );
 516                 }
 517
 518                 // allow extensions adding stuff after the page content.
 519                 // See Skin::afterContentHook() for further documentation.
 520                 $tpl->set( 'dataAfterContent', $this->afterContentHook() );
 521                 wfProfileOut( __METHOD__ . '-stuff5' );
 522
 523                 // execute template
 524                 wfProfileIn( __METHOD__ . '-execute' );
 525                 $res = $tpl->execute();
 526                 wfProfileOut( __METHOD__ . '-execute' );
 527
 528                 // result may be an error
 529                 $this->printOrError( $res );
 530                 wfProfileOut( __METHOD__ );
 531         }
 532
 533         /**
 534          * Output the string, or print error message if it's
 535          * an error object of the appropriate type.
 536          * For the base class, assume strings all around.
 537          *
 538          * @param $str Mixed
 539          * @private
 540          */
 541         function printOrError( $str ) {
 542                 echo $str;
 543         }
 544
 545         /**
 546          * Output a boolean indiciating if buildPersonalUrls should output separate
 547          * login and create account links or output a combined link
 548          * By default we simply return a global config setting that affects most skins
 549          * This is setup as a method so that like with $wgLogo and getLogo() a skin
 550          * can override this setting and always output one or the other if it has
 551          * a reason it can't output one of the two modes.
 552          */
 553         function useCombinedLoginLink() {
 554                 global $wgUseCombinedLoginLink;
 555                 return $wgUseCombinedLoginLink;
 556         }
 557
 558         /**
 559          * build array of urls for personal toolbar
 560          * @return array
 561          * @private
 562          */
 563         function buildPersonalUrls() {
 564                 global $wgOut, $wgRequest;
 565
 566                 $title = $wgOut->getTitle();
 567                 $pageurl = $title->getLocalURL();
 568                 wfProfileIn( __METHOD__ );
 569
 570                 /* set up the default links for the personal toolbar */
 571                 $personal_urls = array();
 572                 $page = $wgRequest->getVal( 'returnto', $this->thisurl );
 573                 $query = $wgRequest->getVal( 'returntoquery', $this->thisquery );
 574                 $returnto = "returnto=$page";
 575                 if( $this->thisquery != '' ) {
 576                         $returnto .= "&returntoquery=$query";
 577                 }
 578                 if( $this->loggedin ) {
 579                         $personal_urls['userpage'] = array(
 580                                 'text' => $this->username,
 581                                 'href' => &$this->userpageUrlDetails['href'],
 582                                 'class' => $this->userpageUrlDetails['exists'] ? false : 'new',
 583                                 'active' => ( $this->userpageUrlDetails['href'] == $pageurl )
 584                         );
 585                         $usertalkUrlDetails = $this->makeTalkUrlDetails( $this->userpage );
 586                         $personal_urls['mytalk'] = array(
 587                                 'text' => wfMsg( 'mytalk' ),
 588                                 'href' => &$usertalkUrlDetails['href'],
 589                                 'class' => $usertalkUrlDetails['exists'] ? false : 'new',
 590                                 'active' => ( $usertalkUrlDetails['href'] == $pageurl )
 591                         );
 592                         $href = self::makeSpecialUrl( 'Preferences' );
 593                         $personal_urls['preferences'] = array(
 594                                 'text' => wfMsg( 'mypreferences' ),
 595                                 'href' => $href,
 596                                 'active' => ( $href == $pageurl )
 597                         );
 598                         $href = self::makeSpecialUrl( 'Watchlist' );
 599                         $personal_urls['watchlist'] = array(
 600                                 'text' => wfMsg( 'mywatchlist' ),
 601                                 'href' => $href,
 602                                 'active' => ( $href == $pageurl )
 603                         );
 604
 605                         # We need to do an explicit check for Special:Contributions, as we
 606                         # have to match both the title, and the target (which could come
 607                         # from request values or be specified in "sub page" form. The plot
 608                         # thickens, because $wgTitle is altered for special pages, so doesn't
 609                         # contain the original alias-with-subpage.
 610                         $origTitle = Title::newFromText( $wgRequest->getText( 'title' ) );
 611                         if( $origTitle instanceof Title && $origTitle->getNamespace() == NS_SPECIAL ) {
 612                                 list( $spName, $spPar ) =
 613                                         SpecialPage::resolveAliasWithSubpage( $origTitle->getText() );
 614                                 $active = $spName == 'Contributions'
 615                                         && ( ( $spPar && $spPar == $this->username )
 616                                                 || $wgRequest->getText( 'target' ) == $this->username );
 617                         } else {
 618                                 $active = false;
 619                         }
 620
 621                         $href = self::makeSpecialUrlSubpage( 'Contributions', $this->username );
 622                         $personal_urls['mycontris'] = array(
 623                                 'text' => wfMsg( 'mycontris' ),
 624                                 'href' => $href,
 625                                 'active' => $active
 626                         );
 627                         $personal_urls['logout'] = array(
 628                                 'text' => wfMsg( 'userlogout' ),
 629                                 'href' => self::makeSpecialUrl( 'Userlogout',
 630                                         $title->isSpecial( 'Preferences' ) ? '' : $returnto
 631                                 ),
 632                                 'active' => false
 633                         );
 634                 } else {
 635                         global $wgUser;
 636                         $useCombinedLoginLink = $this->useCombinedLoginLink();
 637                         $loginlink = $wgUser->isAllowed( 'createaccount' ) && $useCombinedLoginLink
 638                                 ? 'nav-login-createaccount'
 639                                 : 'login';
 640                         $is_signup = $wgRequest->getText('type') == "signup";
 641
 642                         # anonlogin & login are the same
 643                         $login_url = array(
 644                                 'text' => wfMsg( $loginlink ),
 645                                 'href' => self::makeSpecialUrl( 'Userlogin', $returnto ),
 646                                 'active' => $title->isSpecial( 'Userlogin' ) && ( $loginlink == "nav-login-createaccount" || !$is_signup )
 647                         );
 648                         if ( $wgUser->isAllowed( 'createaccount' ) && !$useCombinedLoginLink ) {
 649                                 $createaccount_url = array(
 650                                         'text' => wfMsg( 'createaccount' ),
 651                                         'href' => self::makeSpecialUrl( 'Userlogin', "$returnto&type=signup" ),
 652                                         'active' => $title->isSpecial( 'Userlogin' ) && $is_signup
 653                                 );
 654                         }
 655                         global $wgProto, $wgSecureLogin;
 656                         if( $wgProto === 'http' && $wgSecureLogin ) {
 657                                 $title = SpecialPage::getTitleFor( 'Userlogin' );
 658                                 $https_url = preg_replace( '/^http:/', 'https:', $title->getFullURL() );
 659                                 $login_url['href']  = $https_url;
 660                                 $login_url['class'] = 'link-https';  # FIXME class depends on skin
 661                                 if ( isset($createaccount_url) ) {
 662                                         $https_url = preg_replace( '/^http:/', 'https:', $title->getFullURL("type=signup") );
 663                                         $createaccount_url['href']  = $https_url;
 664                                         $createaccount_url['class'] = 'link-https';  # FIXME class depends on skin
 665                                 }
 666                         }
 667
 668
 669                         if( $this->showIPinHeader() ) {
 670                                 $href = &$this->userpageUrlDetails['href'];
 671                                 $personal_urls['anonuserpage'] = array(
 672                                         'text' => $this->username,
 673                                         'href' => $href,
 674                                         'class' => $this->userpageUrlDetails['exists'] ? false : 'new',
 675                                         'active' => ( $pageurl == $href )
 676                                 );
 677                                 $usertalkUrlDetails = $this->makeTalkUrlDetails( $this->userpage );
 678                                 $href = &$usertalkUrlDetails['href'];
 679                                 $personal_urls['anontalk'] = array(
 680                                         'text' => wfMsg( 'anontalk' ),
 681                                         'href' => $href,
 682                                         'class' => $usertalkUrlDetails['exists'] ? false : 'new',
 683                                         'active' => ( $pageurl == $href )
 684                                 );
 685                                 $personal_urls['anonlogin'] = $login_url;
 686                                 if ( isset($createaccount_url) ) {
 687                                         $personal_urls['createaccount'] = $createaccount_url;
 688                                 }
 689                         } else {
 690                                 $personal_urls['login'] = $login_url;
 691                         }
 692                 }
 693
 694                 wfRunHooks( 'PersonalUrls', array( &$personal_urls, &$title ) );
 695                 wfProfileOut( __METHOD__ );
 696                 return $personal_urls;
 697         }
 698
 699         function tabAction( $title, $message, $selected, $query = '', $checkEdit = false ) {
 700                 $classes = array();
 701                 if( $selected ) {
 702                         $classes[] = 'selected';
 703                 }
 704                 if( $checkEdit && !$title->isKnown() ) {
 705                         $classes[] = 'new';
 706                         $query = 'action=edit&redlink=1';
 707                 }
 708
 709                 $text = wfMsg( $message );
 710                 if ( wfEmptyMsg( $message, $text ) ) {
 711                         global $wgContLang;
 712                         $text = $wgContLang->getFormattedNsText( MWNamespace::getSubject( $title->getNamespace() ) );
 713                 }
 714
 715                 $result = array();
 716                 if( !wfRunHooks( 'SkinTemplateTabAction', array( &$this,
 717                                 $title, $message, $selected, $checkEdit,
 718                                 &$classes, &$query, &$text, &$result ) ) ) {
 719                         return $result;
 720                 }
 721
 722                 return array(
 723                         'class' => implode( ' ', $classes ),
 724                         'text' => $text,
 725                         'href' => $title->getLocalUrl( $query ),
 726                         'primary' => true );
 727         }
 728
 729         function makeTalkUrlDetails( $name, $urlaction = '' ) {
 730                 $title = Title::newFromText( $name );
 731                 if( !is_object( $title ) ) {
 732                         throw new MWException( __METHOD__ . " given invalid pagename $name" );
 733                 }
 734                 $title = $title->getTalkPage();
 735                 self::checkTitle( $title, $name );
 736                 return array(
 737                         'href' => $title->getLocalURL( $urlaction ),
 738                         'exists' => $title->getArticleID() != 0,
 739                 );
 740         }
 741
 742         function makeArticleUrlDetails( $name, $urlaction = '' ) {
 743                 $title = Title::newFromText( $name );
 744                 $title= $title->getSubjectPage();
 745                 self::checkTitle( $title, $name );
 746                 return array(
 747                         'href' => $title->getLocalURL( $urlaction ),
 748                         'exists' => $title->getArticleID() != 0,
 749                 );
 750         }
 751
 752         /**
 753          * a structured array of links usually used for the tabs in a skin
 754          *
 755          * There are 4 standard sections
 756          * namespaces: Used for namespace tabs like special, page, and talk namespaces
 757          * views: Used for primary page views like read, edit, history
 758          * actions: Used for most extra page actions like deletion, protection, etc...
 759          * variants: Used to list the language variants for the page
 760          *
 761          * Each section's value is a key/value array of links for that section.
 762          * The links themseves have these common keys:
 763          * - class: The css classes to apply to the tab
 764          * - text: The text to display on the tab
 765          * - href: The href for the tab to point to
 766          * - rel: An optional rel= for the tab's link
 767          * - redundant: If true the tab will be dropped in skins using content_actions
 768          *   this is useful for tabs like "Read" which only have meaning in skins that
 769          *   take special meaning from the grouped structure of content_navigation
 770          *
 771          * Views also have an extra key which can be used:
 772          * - primary: If this is not true skins like vector may try to hide the tab
 773          *            when the user has limited space in their browser window
 774          *
 775          * content_navigation using code also expects these ids to be present on the
 776          * links, however these are usually automatically generated by SkinTemplate
 777          * itself and are not necessary when using a hook. The only things these may
 778          * matter to are people modifying content_navigation after it's initial creation:
 779          * - id: A "preferred" id, most skins are best off outputting this preferred id for best compatibility
 780          * - tooltiponly: This is set to true for some tabs in cases where the system
 781          *                believes that the accesskey should not be added to the tab.
 782          *
 783          * @return array
 784          * @private
 785          */
 786         function buildContentNavigationUrls() {
 787                 global $wgContLang, $wgLang, $wgOut, $wgUser, $wgRequest, $wgArticle;
 788                 global $wgDisableLangConversion;
 789
 790                 wfProfileIn( __METHOD__ );
 791
 792                 $content_navigation = array(
 793                         'namespaces' => array(),
 794                         'views' => array(),
 795                         'actions' => array(),
 796                         'variants' => array()
 797                 );
 798
 799                 // parameters
 800                 $action = $wgRequest->getVal( 'action', 'view' );
 801                 $section = $wgRequest->getVal( 'section' );
 802
 803                 $userCanRead = $this->mTitle->userCanRead();
 804                 $skname = $this->skinname;
 805
 806                 $preventActiveTabs = false;
 807                 wfRunHooks( 'SkinTemplatePreventOtherActiveTabs', array( &$this, &$preventActiveTabs ) );
 808
 809                 // Checks if page is some kind of content
 810                 if( $this->iscontent ) {
 811                         // Gets page objects for the related namespaces
 812                         $subjectPage = $this->mTitle->getSubjectPage();
 813                         $talkPage = $this->mTitle->getTalkPage();
 814
 815                         // Determines if this is a talk page
 816                         $isTalk = $this->mTitle->isTalkPage();
 817
 818                         // Generates XML IDs from namespace names
 819                         $subjectId = $this->mTitle->getNamespaceKey( '' );
 820
 821                         if ( $subjectId == 'main' ) {
 822                                 $talkId = 'talk';
 823                         } else {
 824                                 $talkId = "{$subjectId}_talk";
 825                         }
 826
 827                         // Adds namespace links
 828                         $content_navigation['namespaces'][$subjectId] = $this->tabAction(
 829                                 $subjectPage, 'nstab-' . $subjectId, !$isTalk && !$preventActiveTabs, '', $userCanRead
 830                         );
 831                         $content_navigation['namespaces'][$subjectId]['context'] = 'subject';
 832                         $content_navigation['namespaces'][$talkId] = $this->tabAction(
 833                                 $talkPage, 'talk', $isTalk && !$preventActiveTabs, '', $userCanRead
 834                         );
 835                         $content_navigation['namespaces'][$talkId]['context'] = 'talk';
 836
 837                         // Adds view view link
 838                         if ( $this->mTitle->exists() && $userCanRead ) {
 839                                 $content_navigation['views']['view'] = $this->tabAction(
 840                                         $isTalk ? $talkPage : $subjectPage,
 841                                         !wfEmptyMsg( "$skname-view-view" ) ? "$skname-view-view" : 'view',
 842                                         ( $action == 'view' ), '', true
 843                                 );
 844                                 $content_navigation['views']['view']['redundant'] = true; // signal to hide this from simple content_actions
 845                         }
 846
 847                         wfProfileIn( __METHOD__ . '-edit' );
 848
 849                         // Checks if user can...
 850                         if (
 851                                 // read and edit the current page
 852                                 $userCanRead && $this->mTitle->quickUserCan( 'edit' ) &&
 853                                 (
 854                                         // if it exists
 855                                         $this->mTitle->exists() ||
 856                                         // or they can create one here
 857                                         $this->mTitle->quickUserCan( 'create' )
 858                                 )
 859                         ) {
 860                                 // Builds CSS class for talk page links
 861                                 $isTalkClass = $isTalk ? ' istalk' : '';
 862
 863                                 // Determines if we're in edit mode
 864                                 $selected = (
 865                                         ( $action == 'edit' || $action == 'submit' ) &&
 866                                         ( $section != 'new' )
 867                                 );
 868                                 $msgKey = $this->mTitle->exists() || ( $this->mTitle->getNamespace() == NS_MEDIAWIKI && !wfEmptyMsg( $this->mTitle->getText() ) ) ?
 869                                         "edit" : "create";
 870                                 $content_navigation['views']['edit'] = array(
 871                                         'class' => ( $selected ? 'selected' : '' ) . $isTalkClass,
 872                                         'text' => wfMessageFallback( "$skname-view-$msgKey", $msgKey )->plain(),
 873                                         'href' => $this->mTitle->getLocalURL( $this->editUrlOptions() ),
 874                                         'primary' => true, // don't collapse this in vector
 875                                 );
 876                                 // Checks if this is a current rev of talk page and we should show a new
 877                                 // section link
 878                                 if ( ( $isTalk && $wgArticle && $wgArticle->isCurrent() ) || ( $wgOut->showNewSectionLink() ) ) {
 879                                         // Checks if we should ever show a new section link
 880                                         if ( !$wgOut->forceHideNewSectionLink() ) {
 881                                                 // Adds new section link
 882                                                 //$content_navigation['actions']['addsection']
 883                                                 $content_navigation['views']['addsection'] = array(
 884                                                         'class' => $section == 'new' ? 'selected' : false,
 885                                                         'text' => wfMessageFallback( "$skname-action-addsection", 'addsection' )->plain(),
 886                                                         'href' => $this->mTitle->getLocalURL( 'action=edit&section=new' )
 887                                                 );
 888                                         }
 889                                 }
 890                         // Checks if the page has some kind of viewable content
 891                         } elseif ( $this->mTitle->hasSourceText() && $userCanRead ) {
 892                                 // Adds view source view link
 893                                 $content_navigation['views']['viewsource'] = array(
 894                                         'class' => ( $action == 'edit' ) ? 'selected' : false,
 895                                         'text' => wfMessageFallback( "$skname-action-viewsource", 'viewsource' )->plain(),
 896                                         'href' => $this->mTitle->getLocalURL( $this->editUrlOptions() ),
 897                                         'primary' => true, // don't collapse this in vector
 898                                 );
 899                         }
 900                         wfProfileOut( __METHOD__ . '-edit' );
 901
 902                         wfProfileIn( __METHOD__ . '-live' );
 903
 904                         // Checks if the page exists
 905                         if ( $this->mTitle->exists() && $userCanRead ) {
 906                                 // Adds history view link
 907                                 $content_navigation['views']['history'] = array(
 908                                         'class' => ( $action == 'history' ) ? 'selected' : false,
 909                                         'text' => wfMessageFallback( "$skname-view-history", 'history_short' )->plain(),
 910                                         'href' => $this->mTitle->getLocalURL( 'action=history' ),
 911                                         'rel' => 'archives',
 912                                 );
 913
 914                                 if( $wgUser->isAllowed( 'delete' ) ) {
 915                                         $content_navigation['actions']['delete'] = array(
 916                                                 'class' => ( $action == 'delete' ) ? 'selected' : false,
 917                                                 'text' => wfMessageFallback( "$skname-action-delete", 'delete' )->plain(),
 918                                                 'href' => $this->mTitle->getLocalURL( 'action=delete' )
 919                                         );
 920                                 }
 921                                 if ( $this->mTitle->quickUserCan( 'move' ) ) {
 922                                         $moveTitle = SpecialPage::getTitleFor( 'Movepage', $this->thispage );
 923                                         $content_navigation['actions']['move'] = array(
 924                                                 'class' => $this->mTitle->isSpecial( 'Movepage' ) ? 'selected' : false,
 925                                                 'text' => wfMessageFallback( "$skname-action-move", 'move' )->plain(),
 926                                                 'href' => $moveTitle->getLocalURL()
 927                                         );
 928                                 }
 929
 930                                 if ( $this->mTitle->getNamespace() !== NS_MEDIAWIKI && $wgUser->isAllowed( 'protect' ) ) {
 931                                         $mode = !$this->mTitle->isProtected() ? 'protect' : 'unprotect';
 932                                         $content_navigation['actions'][$mode] = array(
 933                                                 'class' => ( $action == $mode ) ? 'selected' : false,
 934                                                 'text' => wfMessageFallback( "$skname-action-$mode", $mode )->plain(),
 935                                                 'href' => $this->mTitle->getLocalURL( "action=$mode" )
 936                                         );
 937                                 }
 938                         } else {
 939                                 // article doesn't exist or is deleted
 940                                 if ( $wgUser->isAllowed( 'deletedhistory' ) ) {
 941                                         $n = $this->mTitle->isDeleted();
 942                                         if( $n ) {
 943                                                 $undelTitle = SpecialPage::getTitleFor( 'Undelete' );
 944                                                 // If the user can't undelete but can view deleted history show them a "View .. deleted" tab instead
 945                                                 $msgKey = $wgUser->isAllowed( 'undelete' ) ? 'undelete' : 'viewdeleted';
 946                                                 $content_navigation['actions']['undelete'] = array(
 947                                                         'class' => false,
 948                                                         'text' => wfMessageFallback( "$skname-action-$msgKey", "{$msgKey}_short" )
 949                                                                 ->params( $wgLang->formatNum( $n ) )->text(),
 950                                                         'href' => $undelTitle->getLocalURL( array( 'target' => $this->thispage ) )
 951                                                 );
 952                                         }
 953                                 }
 954
 955                                 if ( $this->mTitle->getNamespace() !== NS_MEDIAWIKI && $wgUser->isAllowed( 'protect' ) ) {
 956                                         $mode = !$this->mTitle->getRestrictions( 'create' ) ? 'protect' : 'unprotect';
 957                                         $content_navigation['actions'][$mode] = array(
 958                                                 'class' => ( $action == $mode ) ? 'selected' : false,
 959                                                 'text' => wfMessageFallback( "$skname-action-$mode", $mode )->plain(),
 960                                                 'href' => $this->mTitle->getLocalURL( "action=$mode" )
 961                                         );
 962                                 }
 963                         }
 964                         wfProfileOut( __METHOD__ . '-live' );
 965
 966                         // Checks if the user is logged in
 967                         if ( $this->loggedin ) {
 968                                 /**
 969                                  * The following actions use messages which, if made particular to
 970                                  * the any specific skins, would break the Ajax code which makes this
 971                                  * action happen entirely inline. Skin::makeGlobalVariablesScript
 972                                  * defines a set of messages in a javascript object - and these
 973                                  * messages are assumed to be global for all skins. Without making
 974                                  * a change to that procedure these messages will have to remain as
 975                                  * the global versions.
 976                                  */
 977                                 $mode = $this->mTitle->userIsWatching() ? 'unwatch' : 'watch';
 978                                 $content_navigation['actions'][$mode] = array(
 979                                         'class' => ( $action == 'watch' || $action == 'unwatch' ) ? 'selected' : false,
 980                                         'text' => wfMsg( $mode ), // uses 'watch' or 'unwatch' message
 981                                         'href' => $this->mTitle->getLocalURL( 'action=' . $mode )
 982                                 );
 983                         }
 984
 985                         wfRunHooks( 'SkinTemplateNavigation', array( &$this, &$content_navigation ) );
 986                 } else {
 987                         // If it's not content, it's got to be a special page
 988                         $content_navigation['namespaces']['special'] = array(
 989                                 'class' => 'selected',
 990                                 'text' => wfMsg( 'nstab-special' ),
 991                                 'href' => $wgRequest->getRequestURL(), // @bug 2457, 2510
 992                                 'context' => 'subject'
 993                         );
 994
 995                         wfRunHooks( 'SkinTemplateNavigation::SpecialPage', array( &$this, &$content_navigation ) );
 996                 }
 997
 998                 // Gets list of language variants
 999                 $variants = $wgContLang->getVariants();
1000                 // Checks that language conversion is enabled and variants exist
1001                 if( !$wgDisableLangConversion && count( $variants ) > 1 ) {
1002                         // Gets preferred variant
1003                         $preferred = $wgContLang->getPreferredVariant();
1004                         // Loops over each variant
1005                         foreach( $variants as $code ) {
1006                                 // Gets variant name from language code
1007                                 $varname = $wgContLang->getVariantname( $code );
1008                                 // Checks if the variant is marked as disabled
1009                                 if( $varname == 'disable' ) {
1010                                         // Skips this variant
1011                                         continue;
1012                                 }
1013                                 // Appends variant link
1014                                 $content_navigation['variants'][] = array(
1015                                         'class' => ( $code == $preferred ) ? 'selected' : false,
1016                                         'text' => $varname,
1017                                         'href' => $this->mTitle->getLocalURL( '', $code )
1018                                 );
1019                         }
1020                 }
1021
1022                 // Equiv to SkinTemplateContentActions
1023                 wfRunHooks( 'SkinTemplateNavigation::Universal', array( &$this,  &$content_navigation ) );
1024
1025                 // Setup xml ids and tooltip info
1026                 foreach ( $content_navigation as $section => &$links ) {
1027                         foreach ( $links as $key => &$link ) {
1028                                 $xmlID = $key;
1029                                 if ( isset( $link['context'] ) && $link['context'] == 'subject' ) {
1030                                         $xmlID = 'ca-nstab-' . $xmlID;
1031                                 } elseif ( isset( $link['context'] ) && $link['context'] == 'talk' ) {
1032                                         $xmlID = 'ca-talk';
1033                                 } elseif ( $section == "variants" ) {
1034                                         $xmlID = 'ca-varlang-' . $xmlID;
1035                                 } else {
1036                                         $xmlID = 'ca-' . $xmlID;
1037                                 }
1038                                 $link['id'] = $xmlID;
1039                         }
1040                 }
1041
1042                 # We don't want to give the watch tab an accesskey if the
1043                 # page is being edited, because that conflicts with the
1044                 # accesskey on the watch checkbox.  We also don't want to
1045                 # give the edit tab an accesskey, because that's fairly su-
1046                 # perfluous and conflicts with an accesskey (Ctrl-E) often
1047                 # used for editing in Safari.
1048                 if( in_array( $action, array( 'edit', 'submit' ) ) ) {
1049                         if ( isset($content_navigation['views']['edit']) ) {
1050                                 $content_navigation['views']['edit']['tooltiponly'] = true;
1051                         }
1052                         if ( isset($content_navigation['actions']['watch']) ) {
1053                                 $content_navigation['actions']['watch']['tooltiponly'] = true;
1054                         }
1055                         if ( isset($content_navigation['actions']['unwatch']) ) {
1056                                 $content_navigation['actions']['unwatch']['tooltiponly'] = true;
1057                         }
1058                 }
1059
1060                 wfProfileOut( __METHOD__ );
1061
1062                 return $content_navigation;
1063         }
1064
1065         /**
1066          * an array of edit links by default used for the tabs
1067          * @return array
1068          * @private
1069          */
1070         function buildContentActionUrls( $content_navigation ) {
1071
1072                 wfProfileIn( __METHOD__ );
1073
1074                 // content_actions has been replaced with content_navigation for backwards
1075                 // compatibility and also for skins that just want simple tabs content_actions
1076                 // is now built by flattening the content_navigation arrays into one
1077
1078                 $content_actions = array();
1079
1080                 foreach ( $content_navigation as $section => $links ) {
1081
1082                         foreach ( $links as $key => $value ) {
1083
1084                                 if ( isset($value["redundant"]) && $value["redundant"] ) {
1085                                         // Redundant tabs are dropped from content_actions
1086                                         continue;
1087                                 }
1088
1089                                 // content_actions used to have ids built using the "ca-$key" pattern
1090                                 // so the xmlID based id is much closer to the actual $key that we want
1091                                 // for that reason we'll just strip out the ca- if present and use
1092                                 // the latter potion of the "id" as the $key
1093                                 if ( isset($value["id"]) && substr($value["id"], 0, 3) == "ca-" ) {
1094                                         $key = substr($value["id"], 3);
1095                                 }
1096
1097                                 if ( isset($content_actions[$key]) ) {
1098                                         wfDebug( __METHOD__ . ": Found a duplicate key for $key while flattening content_navigation into content_actions." );
1099                                         continue;
1100                                 }
1101
1102                                 $content_actions[$key] = $value;
1103
1104                         }
1105
1106                 }
1107
1108                 wfProfileOut( __METHOD__ );
1109
1110                 return $content_actions;
1111         }
1112
1113         /**
1114          * build array of common navigation links
1115          * @return array
1116          * @private
1117          */
1118         function buildNavUrls() {
1119                 global $wgUseTrackbacks, $wgOut, $wgUser, $wgRequest;
1120                 global $wgUploadNavigationUrl;
1121
1122                 wfProfileIn( __METHOD__ );
1123
1124                 $action = $wgRequest->getVal( 'action', 'view' );
1125
1126                 $nav_urls = array();
1127                 $nav_urls['mainpage'] = array( 'href' => self::makeMainPageUrl() );
1128                 if( $wgUploadNavigationUrl ) {
1129                         $nav_urls['upload'] = array( 'href' => $wgUploadNavigationUrl );
1130                 } elseif( UploadBase::isEnabled() && UploadBase::isAllowed( $wgUser ) === true ) {
1131                         $nav_urls['upload'] = array( 'href' => self::makeSpecialUrl( 'Upload' ) );
1132                 } else {
1133                         $nav_urls['upload'] = false;
1134                 }
1135                 $nav_urls['specialpages'] = array( 'href' => self::makeSpecialUrl( 'Specialpages' ) );
1136
1137                 // default permalink to being off, will override it as required below.
1138                 $nav_urls['permalink'] = false;
1139
1140                 // A print stylesheet is attached to all pages, but nobody ever
1141                 // figures that out. :)  Add a link...
1142                 if( $this->iscontent && ( $action == 'view' || $action == 'purge' ) ) {
1143                         if ( !$wgOut->isPrintable() ) {
1144                                 $nav_urls['print'] = array(
1145                                         'text' => wfMsg( 'printableversion' ),
1146                                         'href' => $wgRequest->appendQuery( 'printable=yes' )
1147                                 );
1148                         }
1149
1150                         // Also add a "permalink" while we're at it
1151                         if ( $this->mRevisionId ) {
1152                                 $nav_urls['permalink'] = array(
1153                                         'text' => wfMsg( 'permalink' ),
1154                                         'href' => $wgOut->getTitle()->getLocalURL( "oldid=$this->mRevisionId" )
1155                                 );
1156                         }
1157
1158                         // Copy in case this undocumented, shady hook tries to mess with internals
1159                         $revid = $this->mRevisionId;
1160                         wfRunHooks( 'SkinTemplateBuildNavUrlsNav_urlsAfterPermalink', array( &$this, &$nav_urls, &$revid, &$revid ) );
1161                 }
1162
1163                 if( $this->mTitle->getNamespace() != NS_SPECIAL ) {
1164                         $wlhTitle = SpecialPage::getTitleFor( 'Whatlinkshere', $this->thispage );
1165                         $nav_urls['whatlinkshere'] = array(
1166                                 'href' => $wlhTitle->getLocalUrl()
1167                         );
1168                         if( $this->mTitle->getArticleId() ) {
1169                                 $rclTitle = SpecialPage::getTitleFor( 'Recentchangeslinked', $this->thispage );
1170                                 $nav_urls['recentchangeslinked'] = array(
1171                                         'href' => $rclTitle->getLocalUrl()
1172                                 );
1173                         } else {
1174                                 $nav_urls['recentchangeslinked'] = false;
1175                         }
1176                         if( $wgUseTrackbacks )
1177                                 $nav_urls['trackbacklink'] = array(
1178                                         'href' => $wgOut->getTitle()->trackbackURL()
1179                                 );
1180                 }
1181
1182                 if( $this->mTitle->getNamespace() == NS_USER || $this->mTitle->getNamespace() == NS_USER_TALK ) {
1183                         $rootUser = strtok( $this->mTitle->getText(), '/' );
1184                         $id = User::idFromName( $rootUser );
1185                         $ip = User::isIP( $rootUser );
1186                 } else {
1187                         $id = 0;
1188                         $ip = false;
1189                 }
1190
1191                 if( $id || $ip ) { # both anons and non-anons have contribs list
1192                         $nav_urls['contributions'] = array(
1193                                 'href' => self::makeSpecialUrlSubpage( 'Contributions', $rootUser )
1194                         );
1195
1196                         if( $id ) {
1197                                 $logPage = SpecialPage::getTitleFor( 'Log' );
1198                                 $nav_urls['log'] = array(
1199                                         'href' => $logPage->getLocalUrl(
1200                                                 array(
1201                                                         'user' => $rootUser
1202                                                 )
1203                                         )
1204                                 );
1205                         } else {
1206                                 $nav_urls['log'] = false;
1207                         }
1208
1209                         if ( $wgUser->isAllowed( 'block' ) ) {
1210                                 $nav_urls['blockip'] = array(
1211                                         'href' => self::makeSpecialUrlSubpage( 'Blockip', $rootUser )
1212                                 );
1213                         } else {
1214                                 $nav_urls['blockip'] = false;
1215                         }
1216                 } else {
1217                         $nav_urls['contributions'] = false;
1218                         $nav_urls['log'] = false;
1219                         $nav_urls['blockip'] = false;
1220                 }
1221                 $nav_urls['emailuser'] = false;
1222                 if( $this->showEmailUser( $id ) ) {
1223                         $nav_urls['emailuser'] = array(
1224                                 'href' => self::makeSpecialUrlSubpage( 'Emailuser', $rootUser )
1225                         );
1226                 }
1227                 wfProfileOut( __METHOD__ );
1228                 return $nav_urls;
1229         }
1230
1231         /**
1232          * Generate strings used for xml 'id' names
1233          * @return string
1234          * @private
1235          */
1236         function getNameSpaceKey() {
1237                 return $this->mTitle->getNamespaceKey();
1238         }
1239
1240         /**
1241          * @private
1242          */
1243         function setupUserJs( $allowUserJs ) {
1244                 global $wgRequest, $wgJsMimeType;
1245                 wfProfileIn( __METHOD__ );
1246
1247                 $action = $wgRequest->getVal( 'action', 'view' );
1248
1249                 if( $allowUserJs && $this->loggedin ) {
1250                         if( $this->mTitle->isJsSubpage() and $this->userCanPreview( $action ) ) {
1251                                 # XXX: additional security check/prompt?
1252                                 $this->userjsprev = '/*<![CDATA[*/ ' . $wgRequest->getText( 'wpTextbox1' ) . ' /*]]>*/';
1253                         } else {
1254                                 $this->userjs = self::makeUrl( $this->userpage . '/' . $this->skinname . '.js', 'action=raw&ctype=' . $wgJsMimeType );
1255                         }
1256                 }
1257                 wfProfileOut( __METHOD__ );
1258         }
1259
1260         /**
1261          * Code for extensions to hook into to provide per-page CSS, see
1262          * extensions/PageCSS/PageCSS.php for an implementation of this.
1263          *
1264          * @private
1265          */
1266         function setupPageCss() {
1267                 wfProfileIn( __METHOD__ );
1268                 $out = false;
1269                 wfRunHooks( 'SkinTemplateSetupPageCss', array( &$out ) );
1270                 wfProfileOut( __METHOD__ );
1271                 return $out;
1272         }
1273
1274         public function commonPrintStylesheet() {
1275                 return false;
1276         }
1277 }
1278
1279 /**
1280  * Generic wrapper for template functions, with interface
1281  * compatible with what we use of PHPTAL 0.7.
1282  * @ingroup Skins
1283  */
1284 abstract class QuickTemplate {
1285         /**
1286          * Constructor
1287          */
1288         public function QuickTemplate() {
1289                 $this->data = array();
1290                 $this->translator = new MediaWiki_I18N();
1291         }
1292
1293         /**
1294          * Sets the value $value to $name
1295          * @param $name
1296          * @param $value
1297          */
1298         public function set( $name, $value ) {
1299                 $this->data[$name] = $value;
1300         }
1301
1302         /**
1303          * @param $name
1304          * @param $value
1305          */
1306         public function setRef( $name, &$value ) {
1307                 $this->data[$name] =& $value;
1308         }
1309
1310         /**
1311          * @param $t
1312          */
1313         public function setTranslator( &$t ) {
1314                 $this->translator = &$t;
1315         }
1316
1317         /**
1318          * Main function, used by classes that subclass QuickTemplate
1319          * to show the actual HTML output
1320          */
1321         abstract public function execute();
1322
1323         /**
1324          * @private
1325          */
1326         function text( $str ) {
1327                 echo htmlspecialchars( $this->data[$str] );
1328         }
1329
1330         /**
1331          * @private
1332          */
1333         function jstext( $str ) {
1334                 echo Xml::escapeJsString( $this->data[$str] );
1335         }
1336
1337         /**
1338          * @private
1339          */
1340         function html( $str ) {
1341                 echo $this->data[$str];
1342         }
1343
1344         /**
1345          * @private
1346          */
1347         function msg( $str ) {
1348                 echo htmlspecialchars( $this->translator->translate( $str ) );
1349         }
1350
1351         /**
1352          * @private
1353          */
1354         function msgHtml( $str ) {
1355                 echo $this->translator->translate( $str );
1356         }
1357
1358         /**
1359          * An ugly, ugly hack.
1360          * @private
1361          */
1362         function msgWiki( $str ) {
1363                 global $wgParser, $wgOut;
1364
1365                 $text = $this->translator->translate( $str );
1366                 $parserOutput = $wgParser->parse( $text, $wgOut->getTitle(),
1367                         $wgOut->parserOptions(), true );
1368                 echo $parserOutput->getText();
1369         }
1370
1371         /**
1372          * @private
1373          */
1374         function haveData( $str ) {
1375                 return isset( $this->data[$str] );
1376         }
1377
1378         /**
1379          * @private
1380          */
1381         function haveMsg( $str ) {
1382                 $msg = $this->translator->translate( $str );
1383                 return ( $msg != '-' ) && ( $msg != '' ); # ????
1384         }
1385 }
1386
1387 /**
1388  * New base template for a skin's template extended from QuickTemplate
1389  * this class features helper methods that provide common ways of interacting
1390  * with the data stored in the QuickTemplate
1391  */
1392 abstract class BaseTemplate extends QuickTemplate {
1393
1394         /**
1395          * Create an array of common toolbox items from the data in the quicktemplate
1396          * stored by SkinTemplate.
1397          * The resulting array is built acording to a format intended to be passed
1398          * through makeListItem to generate the html.
1399          */
1400         function getToolbox() {
1401                 wfProfileIn( __METHOD__ );
1402
1403                 $toolbox = array();
1404                 if ( $this->data['notspecialpage'] ) {
1405                         $toolbox['whatlinkshere'] = $this->data['nav_urls']['whatlinkshere'];
1406                         $toolbox['whatlinkshere']['id'] = 't-whatlinkshere';
1407                         if ( $this->data['nav_urls']['recentchangeslinked'] ) {
1408                                 $toolbox['recentchangeslinked'] = $this->data['nav_urls']['recentchangeslinked'];
1409                                 $toolbox['recentchangeslinked']['msg'] = 'recentchangeslinked-toolbox';
1410                                 $toolbox['recentchangeslinked']['id'] = 't-recentchangeslinked';
1411                         }
1412                 }
1413                 if( isset( $this->data['nav_urls']['trackbacklink'] ) && $this->data['nav_urls']['trackbacklink'] ) {
1414                         $toolbox['trackbacklink'] = $this->data['nav_urls']['trackbacklink'];
1415                         $toolbox['trackbacklink']['id'] = 't-trackbacklink';
1416                 }
1417                 if ( $this->data['feeds'] ) {
1418                         $toolbox['feeds']['id'] = 'feedlinks';
1419                         $toolbox['feeds']['links'] = array();
1420                         foreach ( $this->data['feeds'] as $key => $feed ) {
1421                                 $toolbox['feeds']['links'][$key] = $feed;
1422                                 $toolbox['feeds']['links'][$key]['id'] = "feed-$key";
1423                                 $toolbox['feeds']['links'][$key]['rel'] = 'alternate';
1424                                 $toolbox['feeds']['links'][$key]['type'] = "application/{$key}+xml";
1425                                 $toolbox['feeds']['links'][$key]['class'] = 'feedlink';
1426                         }
1427                 }
1428                 foreach ( array( 'contributions', 'log', 'blockip', 'emailuser', 'upload', 'specialpages' ) as $special ) {
1429                         if ( $this->data['nav_urls'][$special] ) {
1430                                 $toolbox[$special] = $this->data['nav_urls'][$special];
1431                                 $toolbox[$special]['id'] = "t-$special";
1432                         }
1433                 }
1434                 if ( !empty( $this->data['nav_urls']['print']['href'] ) ) {
1435                         $toolbox['print'] = $this->data['nav_urls']['print'];
1436                         $toolbox['print']['rel'] = 'alternate';
1437                         $toolbox['print']['msg'] = 'printableversion';
1438                 }
1439                 if ( !empty( $this->data['nav_urls']['permalink']['href'] ) ) {
1440                         $toolbox['permalink'] = $this->data['nav_urls']['permalink'];
1441                         $toolbox['permalink']['id'] = 't-permalink';
1442                 } elseif ( $this->data['nav_urls']['permalink']['href'] === '' ) {
1443                         $toolbox['permalink'] = $this->data['nav_urls']['permalink'];
1444                         unset( $toolbox['permalink']['href'] );
1445                         $toolbox['ispermalink']['tooltiponly'] = true;
1446                         $toolbox['ispermalink']['id'] = 't-ispermalink';
1447                         $toolbox['ispermalink']['msg'] = 'permalink';
1448                 }
1449                 wfRunHooks( 'BaseTemplateToolbox', array( &$this, &$toolbox ) );
1450                 wfProfileOut( __METHOD__ );
1451                 return $toolbox;
1452         }
1453
1454         /**
1455          * Create an array of personal tools items from the data in the quicktemplate
1456          * stored by SkinTemplate.
1457          * The resulting array is built acording to a format intended to be passed
1458          * through makeListItem to generate the html.
1459          * This is in reality the same list as already stored in personal_urls
1460          * however it is reformatted so that you can just pass the individual items
1461          * to makeListItem instead of hardcoding the element creation boilerplate.
1462          */
1463         function getPersonalTools() {
1464                 $personal_tools = array();
1465                 foreach( $this->data['personal_urls'] as $key => $ptool ) {
1466                         # The class on a personal_urls item is meant to go on the <a> instead
1467                         # of the <li> so we have to use a single item "links" array instead
1468                         # of using most of the personal_url's keys directly
1469                         $personal_tools[$key] = array();
1470                         $personal_tools[$key]["links"][] = array();
1471                         $personal_tools[$key]["links"][0]["single-id"] = $personal_tools[$key]["id"] = "pt-$key";
1472                         if ( isset($ptool["active"]) ) {
1473                                 $personal_tools[$key]["active"] = $ptool["active"];
1474                         }
1475                         foreach ( array("href", "class", "text") as $k ) {
1476                                 if ( isset($ptool[$k]) )
1477                                         $personal_tools[$key]["links"][0][$k] = $ptool[$k];
1478                         }
1479                 }
1480                 return $personal_tools;
1481         }
1482
1483         /**
1484          * Makes a link, usually used by makeListItem to generate a link for an item
1485          * in a list used in navigation lists, portlets, portals, sidebars, etc...
1486          *
1487          * $key is a string, usually a key from the list you are generating this link from
1488          * $item is an array containing some of a specific set of keys.
1489          * The text of the link will be generated either from the contents of the "text"
1490          * key in the $item array, if a "msg" key is present a message by that name will
1491          * be used, and if neither of those are set the $key will be used as a message name.
1492          * If a "href" key is not present makeLink will just output htmlescaped text.
1493          * The href, id, class, rel, and type keys are used as attributes for the link if present.
1494          * If an "id" or "single-id" (if you don't want the actual id to be output on the link)
1495          * is present it will be used to generate a tooltip and accesskey for the link.
1496          * If you don't want an accesskey, set $item['tooltiponly'] = true;
1497          */
1498         function makeLink( $key, $item ) {
1499                 if ( isset( $item['text'] ) ) {
1500                         $text = $item['text'];
1501                 } else {
1502                         $text = $this->translator->translate( isset( $item['msg'] ) ? $item['msg'] : $key );
1503                 }
1504
1505                 if ( !isset( $item['href'] ) ) {
1506                         return htmlspecialchars( $text );
1507                 }
1508
1509                 $attrs = array();
1510                 foreach ( array( 'href', 'id', 'class', 'rel', 'type' ) as $attr ) {
1511                         if ( isset( $item[$attr] ) ) {
1512                                 $attrs[$attr] = $item[$attr];
1513                         }
1514                 }
1515
1516                 if ( isset( $item['id'] ) ) {
1517                         $item['single-id'] = $item['id'];
1518                 }
1519                 if ( isset( $item['single-id'] ) ) {
1520                         if ( isset( $item['tooltiponly'] ) && $item['tooltiponly'] ) {
1521                                 $attrs['title'] = $this->skin->titleAttrib( $item['single-id'] );
1522                                 if ( $attrs['title'] === false ) {
1523                                         unset( $attrs['title'] );
1524                                 }
1525                         } else {
1526                                 $attrs = array_merge(
1527                                         $attrs,
1528                                         $this->skin->tooltipAndAccesskeyAttribs( $item['single-id'] )
1529                                 );
1530                         }
1531                 }
1532
1533                 return Html::element( 'a', $attrs, $text );
1534         }
1535
1536         /**
1537          * Generates a list item for a navigation, portlet, portal, sidebar... etc list
1538          * $key is a string, usually a key from the list you are generating this link from
1539          * $item is an array of list item data containing some of a specific set of keys.
1540          * The "id" and "class" keys will be used as attributes for the list item,
1541          * if "active" contains a value of true a "active" class will also be appended to class.
1542          * If you want something other than a <li> you can pass a tag name such as
1543          * "tag" => "span" in the $options array to change the tag used.
1544          * link/content data for the list item may come in one of two forms
1545          * A "links" key may be used, in which case it should contain an array with
1546          * a list of links to include inside the list item, see makeLink for the format
1547          * of individual links array items.
1548          * Otherwise the relevant keys from the list item $item array will be passed
1549          * to makeLink instead. Note however that "id" and "class" are used by the
1550          * list item directly so they will not be passed to makeLink
1551          * (however the link will still support a tooltip and accesskey from it)
1552          * If you need an id or class on a single link you should include a "links"
1553          * array with just one link item inside of it.
1554          */
1555         function makeListItem( $key, $item, $options = array() ) {
1556                 if ( isset( $item['links'] ) ) {
1557                         $html = '';
1558                         foreach ( $item['links'] as $linkKey => $link ) {
1559                                 $html .= $this->makeLink( $linkKey, $link );
1560                         }
1561                 } else {
1562                         $link = array();
1563                         foreach ( array( 'text', 'msg', 'href', 'rel', 'type', 'tooltiponly' ) as $k ) {
1564                                 if ( isset( $item[$k] ) ) {
1565                                         $link[$k] = $item[$k];
1566                                 }
1567                         }
1568                         if ( isset( $item['id'] ) ) {
1569                                 // The id goes on the <li> not on the <a> for single links
1570                                 // but makeSidebarLink still needs to know what id to use when
1571                                 // generating tooltips and accesskeys.
1572                                 $link['single-id'] = $item['id'];
1573                         }
1574                         $html = $this->makeLink( $key, $link );
1575                 }
1576
1577                 $attrs = array();
1578                 foreach ( array( 'id', 'class' ) as $attr ) {
1579                         if ( isset( $item[$attr] ) ) {
1580                                 $attrs[$attr] = $item[$attr];
1581                         }
1582                 }
1583                 if ( isset( $item['active'] ) && $item['active'] ) {
1584                         if ( !isset( $attrs['class'] ) ) {
1585                                 $attrs['class'] = '';
1586                         }
1587                         $attrs['class'] .= ' active';
1588                         $attrs['class'] = trim( $attrs['class'] );
1589                 }
1590                 return Html::rawElement( isset( $options['tag'] ) ? $options['tag'] : 'li', $attrs, $html );
1591         }
1592
1593         function makeSearchInput( $attrs = array() ) {
1594                 $realAttrs = array(
1595                         'type' => 'search',
1596                         'name' => 'search',
1597                         'value' => isset( $this->data['search'] ) ? $this->data['search'] : '',
1598                 );
1599                 $realAttrs = array_merge( $realAttrs, $this->skin->tooltipAndAccesskeyAttribs( 'search' ), $attrs );
1600                 return Html::element( 'input', $realAttrs );
1601         }
1602
1603         function makeSearchButton( $mode, $attrs = array() ) {
1604                 switch( $mode ) {
1605                         case 'go':
1606                         case 'fulltext':
1607                                 $realAttrs = array(
1608                                         'type' => 'submit',
1609                                         'name' => $mode,
1610                                         'value' => $this->translator->translate( $mode == 'go' ? 'searcharticle' : 'searchbutton' ),
1611                                 );
1612                                 $realAttrs = array_merge(
1613                                         $realAttrs,
1614                                         $this->skin->tooltipAndAccesskeyAttribs( "search-$mode" ),
1615                                         $attrs
1616                                 );
1617                                 return Html::element( 'input', $realAttrs );
1618                         case 'image':
1619                                 $buttonAttrs = array(
1620                                         'type' => 'submit',
1621                                         'name' => 'button',
1622                                 );
1623                                 $buttonAttrs = array_merge(
1624                                         $buttonAttrs,
1625                                         $this->skin->tooltipAndAccesskeyAttribs( 'search-fulltext' ),
1626                                         $attrs
1627                                 );
1628                                 unset( $buttonAttrs['src'] );
1629                                 unset( $buttonAttrs['alt'] );
1630                                 $imgAttrs = array(
1631                                         'src' => $attrs['src'],
1632                                         'alt' => isset( $attrs['alt'] ) ? $attrs['alt'] : $this->translator->translate( 'searchbutton' ),
1633                                 );
1634                                 return Html::rawElement( 'button', $buttonAttrs, Html::element( 'img', $imgAttrs ) );
1635                         default:
1636                                 throw new MWException( 'Unknown mode passed to BaseTemplate::makeSearchButton' );
1637                 }
1638         }
1639
1640         /**
1641          * Returns an array of footerlinks trimmed down to only those footer links that
1642          * are valid.
1643          * If you pass "flat" as an option then the returned array will be a flat array
1644          * of footer icons instead of a key/value array of footerlinks arrays broken
1645          * up into categories.
1646          */
1647         function getFooterLinks( $option = null ) {
1648                 $footerlinks = $this->data['footerlinks'];
1649
1650                 // Reduce footer links down to only those which are being used
1651                 $validFooterLinks = array();
1652                 foreach( $footerlinks as $category => $links ) {
1653                         $validFooterLinks[$category] = array();
1654                         foreach( $links as $link ) {
1655                                 if( isset( $this->data[$link] ) && $this->data[$link] ) {
1656                                         $validFooterLinks[$category][] = $link;
1657                                 }
1658                         }
1659                         if ( count( $validFooterLinks[$category] ) <= 0 ) {
1660                                 unset( $validFooterLinks[$category] );
1661                         }
1662                 }
1663
1664                 if ( $option == 'flat' ) {
1665                         // fold footerlinks into a single array using a bit of trickery
1666                         $validFooterLinks = call_user_func_array(
1667                                 'array_merge',
1668                                 array_values( $validFooterLinks )
1669                         );
1670                 }
1671
1672                 return $validFooterLinks;
1673         }
1674
1675         /**
1676          * Returns an array of footer icons filtered down by options relevant to how
1677          * the skin wishes to display them.
1678          * If you pass "icononly" as the option all footer icons which do not have an
1679          * image icon set will be filtered out.
1680          * If you pass "nocopyright" then MediaWiki's copyright icon will not be included
1681          * in the list of footer icons. This is mostly useful for skins which only
1682          * display the text from footericons instead of the images and don't want a
1683          * duplicate copyright statement because footerlinks already rendered one.
1684          */
1685         function getFooterIcons( $option = null ) {
1686                 // Generate additional footer icons
1687                 $footericons = $this->data['footericons'];
1688
1689                 if ( $option == 'icononly' ) {
1690                         // Unset any icons which don't have an image
1691                         foreach ( $footericons as $footerIconsKey => &$footerIconsBlock ) {
1692                                 foreach ( $footerIconsBlock as $footerIconKey => $footerIcon ) {
1693                                         if ( !is_string( $footerIcon ) && !isset( $footerIcon['src'] ) ) {
1694                                                 unset( $footerIconsBlock[$footerIconKey] );
1695                                         }
1696                                 }
1697                         }
1698                         // Redo removal of any empty blocks
1699                         foreach ( $footericons as $footerIconsKey => &$footerIconsBlock ) {
1700                                 if ( count( $footerIconsBlock ) <= 0 ) {
1701                                         unset( $footericons[$footerIconsKey] );
1702                                 }
1703                         }
1704                 } elseif ( $option == 'nocopyright' ) {
1705                         $footericons = $this->data['footericons'];
1706                         unset( $footericons['copyright']['copyright'] );
1707                         if ( count( $footericons['copyright'] ) <= 0 ) {
1708                                 unset( $footericons['copyright'] );
1709                         }
1710                 }
1711
1712                 return $footericons;
1713         }
1714
1715
1716 }
1717