Don't look for pipes in the root node.
[lhc/web/wiklou.git] / includes / Skin.php
index 81dd0bf..15536c4 100644 (file)
@@ -3,8 +3,9 @@
  * @defgroup Skins Skins
  */
 
-if ( ! defined( 'MEDIAWIKI' ) )
+if ( !defined( 'MEDIAWIKI' ) ) {
        die( 1 );
+}
 
 /**
  * The main skin class that provide methods and properties for all other skins.
@@ -24,36 +25,43 @@ class Skin extends Linker {
        /**#@-*/
        protected $mRevisionId; // The revision ID we're looking at, null if not applicable.
        protected $skinname = 'standard';
-       // @fixme Should be protected :-\
+       // @todo Fixme: should be protected :-\
        var $mTitle = null;
+       protected $mRelevantTitle = null;
+       protected $mRelevantUser = null;
 
        /** Constructor, call parent constructor */
-       function Skin() { parent::__construct(); }
+       function __construct() {
+               parent::__construct();
+       }
 
        /**
         * Fetch the set of available skins.
         * @return array of strings
-        * @static
         */
        static function getSkinNames() {
                global $wgValidSkinNames;
                static $skinsInitialised = false;
-               if ( !$skinsInitialised ) {
+
+               if ( !$skinsInitialised || !count( $wgValidSkinNames ) ) {
                        # Get a list of available skins
                        # Build using the regular expression '^(.*).php$'
                        # Array keys are all lower case, array value keep the case used by filename
                        #
                        wfProfileIn( __METHOD__ . '-init' );
+
                        global $wgStyleDirectory;
+
                        $skinDir = dir( $wgStyleDirectory );
 
                        # while code from www.php.net
-                       while( false !== ( $file = $skinDir->read() ) ) {
+                       while ( false !== ( $file = $skinDir->read() ) ) {
                                // Skip non-PHP files, hidden files, and '.dep' includes
                                $matches = array();
-                               if( preg_match( '/^([^.]*)\.php$/', $file, $matches ) ) {
+
+                               if ( preg_match( '/^([^.]*)\.php$/', $file, $matches ) ) {
                                        $aSkin = $matches[1];
-                                       $wgValidSkinNames[strtolower($aSkin)] = $aSkin;
+                                       $wgValidSkinNames[strtolower( $aSkin )] = $aSkin;
                                }
                        }
                        $skinDir->close();
@@ -71,10 +79,13 @@ class Skin extends Linker {
         */
        public static function getUsableSkins() {
                global $wgSkipSkins;
+
                $usableSkins = self::getSkinNames();
+
                foreach ( $wgSkipSkins as $skip ) {
                        unset( $usableSkins[$skip] );
                }
+
                return $usableSkins;
        }
 
@@ -82,21 +93,21 @@ class Skin extends Linker {
         * Normalize a skin preference value to a form that can be loaded.
         * If a skin can't be found, it will fall back to the configured
         * default (or the old 'Classic' skin if that's broken).
-        * @param string $key
+        * @param $key String: 'monobook', 'standard', etc.
         * @return string
-        * @static
         */
        static function normalizeKey( $key ) {
                global $wgDefaultSkin;
+
                $skinNames = Skin::getSkinNames();
 
-               if( $key == '' ) {
+               if ( $key == '' ) {
                        // Don't return the default immediately;
                        // in a misconfiguration we need to fall back.
                        $key = $wgDefaultSkin;
                }
 
-               if( isset( $skinNames[$key] ) ) {
+               if ( isset( $skinNames[$key] ) ) {
                        return $key;
                }
 
@@ -105,24 +116,26 @@ class Skin extends Linker {
                $fallback = array(
                        0 => $wgDefaultSkin,
                        1 => 'nostalgia',
-                       2 => 'cologneblue' );
+                       2 => 'cologneblue'
+               );
 
-               if( isset( $fallback[$key] ) ){
+               if ( isset( $fallback[$key] ) ) {
                        $key = $fallback[$key];
                }
 
-               if( isset( $skinNames[$key] ) ) {
+               if ( isset( $skinNames[$key] ) ) {
                        return $key;
+               } else if ( isset( $skinNames[$wgDefaultSkin] ) ) {
+                       return $wgDefaultSkin;
                } else {
-                       return 'monobook';
+                       return 'vector';
                }
        }
 
        /**
         * Factory method for loading a skin of a given type
-        * @param string $key 'monobook', 'standard', etc
+        * @param $key String: 'monobook', 'standard', etc.
         * @return Skin
-        * @static
         */
        static function &newFromKey( $key ) {
                global $wgStyleDirectory;
@@ -131,24 +144,27 @@ class Skin extends Linker {
 
                $skinNames = Skin::getSkinNames();
                $skinName = $skinNames[$key];
-               $className = 'Skin'.ucfirst($key);
+               $className = "Skin{$skinName}";
 
                # Grab the skin class and initialise it.
                if ( !class_exists( $className ) ) {
                        // Preload base classes to work around APC/PHP5 bug
                        $deps = "{$wgStyleDirectory}/{$skinName}.deps.php";
-                       if( file_exists( $deps ) ) include_once( $deps );
+
+                       if ( file_exists( $deps ) ) {
+                               include_once( $deps );
+                       }
                        require_once( "{$wgStyleDirectory}/{$skinName}.php" );
 
                        # Check if we got if not failback to default skin
-                       if( !class_exists( $className ) ) {
+                       if ( !class_exists( $className ) ) {
                                # DO NOT die if the class isn't found. This breaks maintenance
                                # scripts and can cause a user account to be unrecoverable
                                # except by SQL manipulation if a previously valid skin name
                                # is no longer valid.
                                wfDebug( "Skin class does not exist: $className\n" );
-                               $className = 'SkinMonobook';
-                               require_once( "{$wgStyleDirectory}/MonoBook.php" );
+                               $className = 'SkinVector';
+                               require_once( "{$wgStyleDirectory}/Vector.php" );
                        }
                }
                $skin = new $className;
@@ -168,25 +184,29 @@ class Skin extends Linker {
        function qbSetting() {
                global $wgOut, $wgUser;
 
-               if ( $wgOut->isQuickbarSuppressed() ) { return 0; }
+               if ( $wgOut->isQuickbarSuppressed() ) {
+                       return 0;
+               }
+
                $q = $wgUser->getOption( 'quickbar', 0 );
+
                return $q;
        }
 
        function initPage( OutputPage $out ) {
-               global $wgFavicon, $wgAppleTouchIcon;
+               global $wgFavicon, $wgAppleTouchIcon, $wgEnableAPI;
 
                wfProfileIn( __METHOD__ );
 
                # Generally the order of the favicon and apple-touch-icon links
                # should not matter, but Konqueror (3.5.9 at least) incorrectly
-               # uses whichever one appears later in the HTML source.  Make sure
+               # uses whichever one appears later in the HTML source. Make sure
                # apple-touch-icon is specified first to avoid this.
-               if( false !== $wgAppleTouchIcon ) {
+               if ( false !== $wgAppleTouchIcon ) {
                        $out->addLink( array( 'rel' => 'apple-touch-icon', 'href' => $wgAppleTouchIcon ) );
                }
 
-               if( false !== $wgFavicon ) {
+               if ( false !== $wgFavicon ) {
                        $out->addLink( array( 'rel' => 'shortcut icon', 'href' => $wgFavicon ) );
                }
 
@@ -196,7 +216,19 @@ class Skin extends Linker {
                        'type' => 'application/opensearchdescription+xml',
                        'href' => wfScript( 'opensearch_desc' ),
                        'title' => wfMsgForContent( 'opensearch-desc' ),
-               ));
+               ) );
+
+               if ( $wgEnableAPI ) {
+                       # Real Simple Discovery link, provides auto-discovery information
+                       # for the MediaWiki API (and potentially additional custom API
+                       # support such as WordPress or Twitter-compatible APIs for a
+                       # blogging extension, etc)
+                       $out->addLink( array(
+                               'rel' => 'EditURI',
+                               'type' => 'application/rsd+xml',
+                               'href' => wfExpandUrl( wfAppendQuery( wfScript( 'api' ), array( 'action' => 'rsd' ) ) ),
+                       ) );
+               }
 
                $this->addMetadataLinks( $out );
 
@@ -226,23 +258,41 @@ class Skin extends Linker {
                }
 
                $lb = new LinkBatch( $titles );
+               $lb->setCaller( __METHOD__ );
                $lb->execute();
        }
 
+       /**
+        * Adds metadata links below to the HTML output.
+        * <ol>
+        *  <li>Creative Commons
+        *   <br />See http://wiki.creativecommons.org/Extend_Metadata.
+        *  </li>
+        *  <li>Dublin Core</li>
+        *  <li>Use hreflang to specify canonical and alternate links
+        *   <br />See http://www.google.com/support/webmasters/bin/answer.py?answer=189077
+        *  </li>
+        *  <li>Copyright</li>
+        * <ol>
+        * 
+        * @param $out Object: instance of OutputPage
+        */
        function addMetadataLinks( OutputPage $out ) {
                global $wgEnableDublinCoreRdf, $wgEnableCreativeCommonsRdf;
+               global $wgDisableLangConversion, $wgCanonicalLanguageLinks, $wgContLang;
                global $wgRightsPage, $wgRightsUrl;
 
-               if( $out->isArticleRelated() ) {
+               if ( $out->isArticleRelated() ) {
                        # note: buggy CC software only reads first "meta" link
-                       if( $wgEnableCreativeCommonsRdf ) {
+                       if ( $wgEnableCreativeCommonsRdf ) {
                                $out->addMetadataLink( array(
                                        'title' => 'Creative Commons',
                                        'type' => 'application/rdf+xml',
                                        'href' => $this->mTitle->getLocalURL( 'action=creativecommons' ) )
                                );
                        }
-                       if( $wgEnableDublinCoreRdf ) {
+
+                       if ( $wgEnableDublinCoreRdf ) {
                                $out->addMetadataLink( array(
                                        'title' => 'Dublin Core',
                                        'type' => 'application/rdf+xml',
@@ -250,17 +300,43 @@ class Skin extends Linker {
                                );
                        }
                }
+
+               if ( !$wgDisableLangConversion && $wgCanonicalLanguageLinks
+                       && $wgContLang->hasVariants() ) {
+
+                       $urlvar = $wgContLang->getURLVariant();
+
+                       if ( !$urlvar ) {
+                               $variants = $wgContLang->getVariants();
+                               foreach ( $variants as $_v ) {
+                                       $out->addLink( array(
+                                               'rel' => 'alternate',
+                                               'hreflang' => $_v,
+                                               'href' => $this->mTitle->getLocalURL( '', $_v ) )
+                                       );
+                               }
+                       } else {
+                               $out->addLink( array(
+                                       'rel' => 'canonical',
+                                       'href' => $this->mTitle->getFullURL() )
+                               );
+                       }
+               }
+               
                $copyright = '';
-               if( $wgRightsPage ) {
+               if ( $wgRightsPage ) {
                        $copy = Title::newFromText( $wgRightsPage );
-                       if( $copy ) {
+
+                       if ( $copy ) {
                                $copyright = $copy->getLocalURL();
                        }
                }
-               if( !$copyright && $wgRightsUrl ) {
+
+               if ( !$copyright && $wgRightsUrl ) {
                        $copyright = $wgRightsUrl;
                }
-               if( $copyright ) {
+
+               if ( $copyright ) {
                        $out->addLink( array(
                                'rel' => 'copyright',
                                'href' => $copyright )
@@ -271,16 +347,25 @@ class Skin extends Linker {
        /**
         * Set some local variables
         */
-       protected function setMembers(){
+       protected function setMembers() {
                global $wgUser;
                $this->mUser = $wgUser;
                $this->userpage = $wgUser->getUserPage()->getPrefixedText();
                $this->usercss = false;
        }
 
+       /**
+        * Whether the revision displayed is the latest revision of the page
+        *
+        * @return Boolean
+        */
+       public function isRevisionCurrent() {
+               return $this->mRevisionId == 0 || $this->mRevisionId == $this->mTitle->getLatestRevID();
+       }
+
        /**
         * Set the title
-        * @param Title $t The title to use
+        * @param $t Title object to use
         */
        public function setTitle( $t ) {
                $this->mTitle = $t;
@@ -291,6 +376,70 @@ class Skin extends Linker {
                return $this->mTitle;
        }
 
+       /**
+        * Set the "relevant" title
+        * @see self::getRelevantTitle()
+        * @param $t Title object to use
+        */
+       public function setRelevantTitle( $t ) {
+               $this->mRelevantTitle = $t;
+       }
+
+       /**
+        * Return the "relevant" title.
+        * A "relevant" title is not necessarily the actual title of the page.
+        * Special pages like Special:MovePage use set the page they are acting on
+        * as their "relevant" title, this allows the skin system to display things
+        * such as content tabs which belong to to that page instead of displaying
+        * a basic special page tab which has almost no meaning.
+        */
+       public function getRelevantTitle() {
+               if ( isset($this->mRelevantTitle) ) {
+                       return $this->mRelevantTitle;
+               }
+               return $this->mTitle;
+       }
+
+       /**
+        * Set the "relevant" user
+        * @see self::getRelevantUser()
+        * @param $u User object to use
+        */
+       public function setRelevantUser( $u ) {
+               $this->mRelevantUser = $u;
+       }
+
+       /**
+        * Return the "relevant" user.
+        * A "relevant" user is similar to a relevant title. Special pages like
+        * Special:Contributions mark the user which they are relevant to so that
+        * things like the toolbox can display the information they usually are only
+        * able to display on a user's userpage and talkpage.
+        */
+       public function getRelevantUser() {
+               if ( isset($this->mRelevantUser) ) {
+                       return $this->mRelevantUser;
+               }
+               $title = $this->getRelevantTitle();
+               if( $title->getNamespace() == NS_USER || $title->getNamespace() == NS_USER_TALK ) {
+                       $rootUser = strtok( $title->getText(), '/' );
+                       if ( User::isIP( $rootUser ) ) {
+                               $this->mRelevantUser = User::newFromName( $rootUser, false );
+                       } else {
+                               $user = User::newFromName( $rootUser );
+                               if ( $user->isLoggedIn() ) {
+                                       $this->mRelevantUser = $user;
+                               }
+                       }
+                       return $this->mRelevantUser;
+               }
+               return null;
+       }
+
+       /**
+        * Outputs the HTML generated by other functions.
+        * @param $out Object: instance of OutputPage
+        */
        function outputPage( OutputPage $out ) {
                global $wgDebugComments;
                wfProfileIn( __METHOD__ );
@@ -303,14 +452,8 @@ class Skin extends Linker {
 
                $out->out( $out->headElement( $this ) );
 
-               $out->out( "\n<body" );
-               $ops = $this->getBodyOptions();
-               foreach ( $ops as $name => $val ) {
-                       $out->out( " $name='$val'" );
-               }
-               $out->out( ">\n" );
                if ( $wgDebugComments ) {
-                       $out->out( "<!-- Wiki debugging output:\n" .
+                       $out->out( "<!-- Debug output:\n" .
                          $out->mDebugtext . "-->\n" );
                }
 
@@ -322,7 +465,7 @@ class Skin extends Linker {
 
                $out->out( $afterContent );
 
-               $out->out( $this->bottomScripts() );
+               $out->out( $this->bottomScripts( $out ) );
 
                $out->out( wfReportTime() );
 
@@ -331,66 +474,30 @@ class Skin extends Linker {
        }
 
        static function makeVariablesScript( $data ) {
-               if( $data ) {
-                       $r = array();
-                       foreach ( $data as $name => $value ) {
-                               $encValue = Xml::encodeJsVar( $value );
-                               $r[] = "$name=$encValue";
-                       }
-                       $js = 'var ' . implode( ",\n", $r ) . ';';
-                       return Html::inlineScript( "\n$js\n" );
+               if ( $data ) {
+                       return Html::inlineScript(
+                               ResourceLoader::makeLoaderConditionalScript( ResourceLoader::makeConfigSetScript( $data ) )
+                       );
                } else {
                        return '';
-               }
+               } 
        }
 
        /**
         * Make a <script> tag containing global variables
         * @param $skinName string Name of the skin
         * The odd calling convention is for backwards compatibility
-        * @TODO @FIXME Make this not depend on $wgTitle!
+        * @todo FIXME: Make this not depend on $wgTitle!
+        * 
+        * Do not add things here which can be evaluated in ResourceLoaderStartupScript - in other words, without state.
+        * You will only be adding bloat to the page and causing page caches to have to be purged on configuration changes.
         */
        static function makeGlobalVariablesScript( $skinName ) {
-               if ( is_array( $skinName ) ) {
-                       # Weird back-compat stuff.
-                       $skinName = $skinName['skinname'];
-               }
-               global $wgScript, $wgTitle, $wgStylePath, $wgUser, $wgScriptExtension;
-               global $wgArticlePath, $wgScriptPath, $wgServer, $wgContLang, $wgLang;
-               global $wgOut, $wgArticle;
-               global $wgBreakFrames, $wgRequest, $wgVariantArticlePath, $wgActionPaths;
-               global $wgUseAjax, $wgAjaxWatch;
-               global $wgVersion, $wgEnableAPI, $wgEnableWriteAPI;
-               global $wgRestrictionTypes, $wgLivePreview;
-               global $wgMWSuggestTemplate, $wgDBname, $wgEnableMWSuggest;
-               global $wgSitename, $wgEnableIframeApiProxy, $wgEnableJS2system;
-
+               global $wgTitle, $wgUser, $wgRequest, $wgOut, $wgUseAjax, $wgEnableMWSuggest;
+               
                $ns = $wgTitle->getNamespace();
                $nsname = MWNamespace::exists( $ns ) ? MWNamespace::getCanonicalName( $ns ) : $wgTitle->getNsText();
-               $separatorTransTable = $wgContLang->separatorTransformTable();
-               $separatorTransTable = $separatorTransTable ? $separatorTransTable : array();
-               $compactSeparatorTransTable = array(
-                       implode( "\t", array_keys( $separatorTransTable ) ),
-                       implode( "\t", $separatorTransTable ),
-               );
-               $digitTransTable = $wgContLang->digitTransformTable();
-               $digitTransTable = $digitTransTable ? $digitTransTable : array();
-               $compactDigitTransTable = array(
-                       implode( "\t", array_keys( $digitTransTable ) ),
-                       implode( "\t", $digitTransTable ),
-               );
-
-               $mainPage = Title::newFromText( wfMsgForContent( 'mainpage' ) );
                $vars = array(
-                       'skin' => $skinName,
-                       'stylepath' => $wgStylePath,
-                       'wgArticlePath' => $wgArticlePath,
-                       'wgScriptPath' => $wgScriptPath,
-                       'wgScriptExtension' => $wgScriptExtension,
-                       'wgScript' => $wgScript,
-                       'wgVariantArticlePath' => $wgVariantArticlePath,
-                       'wgActionPaths' => (object)$wgActionPaths,
-                       'wgServer' => $wgServer,
                        'wgCanonicalNamespace' => $nsname,
                        'wgCanonicalSpecialPageName' => $ns == NS_SPECIAL ?
                                SpecialPage::resolveAlias( $wgTitle->getDBkey() ) : false, # bug 21115
@@ -400,72 +507,22 @@ class Skin extends Linker {
                        'wgAction' => $wgRequest->getText( 'action', 'view' ),
                        'wgArticleId' => $wgTitle->getArticleId(),
                        'wgIsArticle' => $wgOut->isArticle(),
-                       'wgUserName' => $wgUser->isAnon() ? NULL : $wgUser->getName(),
-                       'wgUserGroups' => $wgUser->isAnon() ? NULL : $wgUser->getEffectiveGroups(),
-                       'wgUserLanguage' => $wgLang->getCode(),
-                       'wgContentLanguage' => $wgContLang->getCode(),
-                       'wgBreakFrames' => $wgBreakFrames,
-                       'wgCurRevisionId' => isset( $wgArticle ) ? $wgArticle->getLatest() : 0,
-                       'wgVersion' => $wgVersion,
-                       'wgEnableAPI' => $wgEnableAPI,
-                       'wgEnableWriteAPI' => $wgEnableWriteAPI,
-                       'wgSeparatorTransformTable' => $compactSeparatorTransTable,
-                       'wgDigitTransformTable' => $compactDigitTransTable,
-                       'wgMainPageTitle' => $mainPage ? $mainPage->getPrefixedText() : null,
-                       'wgFormattedNamespaces' => $wgContLang->getFormattedNamespaces(),
-                       'wgNamespaceIds' => $wgContLang->getNamespaceIds(),
-                       'wgSiteName' => $wgSitename,
+                       'wgUserName' => $wgUser->isAnon() ? null : $wgUser->getName(),
+                       'wgUserGroups' => $wgUser->getEffectiveGroups(),
+                       'wgCurRevisionId' => $wgTitle->getLatestRevID(),
+                       'wgCategories' => $wgOut->getCategories(),
+                       'wgBreakFrames' => $wgOut->getFrameOptions() == 'DENY',
                );
-               if ( $wgContLang->hasVariants() ) {
-                       $vars['wgUserVariant'] = $wgContLang->getPreferredVariant();
-               }
-
-               //if on upload page output the extension list & js_upload
-               if( SpecialPage::resolveAlias( $wgTitle->getDBkey() ) ==  "Upload" ) {
-                       global $wgFileExtensions, $wgAjaxUploadInterface;
-                       $vars['wgFileExtensions'] = $wgFileExtensions;
-                       $vars['wgAjaxUploadInterface'] = $wgAjaxUploadInterface;
-               }
-
-               if( $wgUseAjax && $wgEnableMWSuggest && !$wgUser->getOption( 'disablesuggest', false ) ){
-                       $vars['wgMWSuggestTemplate'] = SearchEngine::getMWSuggestTemplate();
-                       $vars['wgDBname'] = $wgDBname;
-                       $vars['wgSearchNamespaces'] = SearchEngine::userNamespaces( $wgUser );
-                       $vars['wgMWSuggestMessages'] = array( wfMsg( 'search-mwsuggest-enabled' ), wfMsg( 'search-mwsuggest-disabled' ) );
-               }
-
-               foreach( $wgRestrictionTypes as $type )
+               foreach ( $wgTitle->getRestrictionTypes() as $type ) {
                        $vars['wgRestriction' . ucfirst( $type )] = $wgTitle->getRestrictions( $type );
-
-               if ( $wgLivePreview && $wgUser->getOption( 'uselivepreview' ) ) {
-                       $vars['wgLivepreviewMessageLoading'] = wfMsg( 'livepreview-loading' );
-                       $vars['wgLivepreviewMessageReady']   = wfMsg( 'livepreview-ready' );
-                       $vars['wgLivepreviewMessageFailed']  = wfMsg( 'livepreview-failed' );
-                       $vars['wgLivepreviewMessageError']   = wfMsg( 'livepreview-error' );
                }
-
-               //add api proxy var and script link if on the special proxy page:
-               if( $wgEnableJS2system &&
-                       $wgTitle->getNamespace() == NS_MEDIAWIKI &&
-                       $wgTitle->getDBKey() == 'ApiProxy' )
-               {
-                       $vars['wgEnableIframeApiProxy'] = $wgEnableIframeApiProxy;                      
-                       //also add the apiProxy Page script if we are on that page
-                       if( $wgEnableIframeApiProxy )
-                               $wgOut->addScriptClass( 'apiProxyPage' );
-               }
-
-               if ( $wgOut->isArticleRelated() && $wgUseAjax && $wgAjaxWatch && $wgUser->isLoggedIn() ) {
-                       $msgs = (object)array();
-                       foreach ( array( 'watch', 'unwatch', 'watching', 'unwatching' ) as $msgName ) {
-                               $msgs->{$msgName . 'Msg'} = wfMsg( $msgName );
-                       }
-                       $vars['wgAjaxWatch'] = $msgs;
+               if ( $wgUseAjax && $wgEnableMWSuggest && !$wgUser->getOption( 'disablesuggest', false ) ) {
+                       $vars['wgSearchNamespaces'] = SearchEngine::userNamespaces( $wgUser );
                }
-
+               
                // Allow extensions to add their custom variables to the global JS variables
                wfRunHooks( 'MakeGlobalVariablesScript', array( &$vars ) );
-
+               
                return self::makeVariablesScript( $vars );
        }
 
@@ -476,26 +533,31 @@ class Skin extends Linker {
         * passed back with the preview request, we won't render
         * the code.
         *
-        * @param string $action
+        * @param $action String: 'edit', 'submit' etc.
         * @return bool
         */
        public function userCanPreview( $action ) {
                global $wgRequest, $wgUser;
 
-               if( $action != 'submit' )
+               if ( $action != 'submit' ) {
                        return false;
-               if( !$wgRequest->wasPosted() )
+               }
+               if ( !$wgRequest->wasPosted() ) {
                        return false;
-               if( !$this->mTitle->userCanEditCssSubpage() )
+               }
+               if ( !$this->mTitle->userCanEditCssSubpage() ) {
                        return false;
-               if( !$this->mTitle->userCanEditJsSubpage() )
+               }
+               if ( !$this->mTitle->userCanEditJsSubpage() ) {
                        return false;
+               }
+
                return $wgUser->matchEditToken(
                        $wgRequest->getVal( 'wpEditToken' ) );
        }
 
        /**
-        * generated JavaScript action=raw&gen=js
+        * Generated JavaScript action=raw&gen=js
         * This returns MediaWiki:Common.js and MediaWiki:[Skinname].js concate-
         * nated together.  For some bizarre reason, it does *not* return any
         * custom user JS from subpages.  Huh?
@@ -505,211 +567,129 @@ class Skin extends Linker {
         * top.  For now Monobook.js will be maintained, but it should be consi-
         * dered deprecated.
         *
-        * @param $force_skin string If set, overrides the skin name
-        *
+        * @param $skinName String: If set, overrides the skin name
         * @return string
         */
        public function generateUserJs( $skinName = null ) {
-               global $wgStylePath;
-
-               wfProfileIn( __METHOD__ );
-               if( !$skinName ) {
-                       $skinName =     $this->getSkinName();
-               }
-
-               $s = "/* generated javascript */\n";
-               $s .= "var skin = '" . Xml::escapeJsString($skinName ) . "';\n";
-               $s .= "var stylepath = '" . Xml::escapeJsString( $wgStylePath ) . "';";
-               $s .= "\n\n/* MediaWiki:Common.js */\n";
-               $commonJs = wfMsgForContent( 'common.js' );
-               if ( !wfEmptyMsg( 'common.js', $commonJs ) ) {
-                       $s .= $commonJs;
-               }
-
-               $s .= "\n\n/* MediaWiki:".ucfirst( $skinName ).".js */\n";
-               // avoid inclusion of non defined user JavaScript (with custom skins only)
-               // by checking for default message content
-               $msgKey = ucfirst( $skinName ) . '.js';
-               $userJS = wfMsgForContent( $msgKey );
-               if ( !wfEmptyMsg( $msgKey, $userJS ) ) {
-                       $s .= $userJS;
-               }
-
-               wfProfileOut( __METHOD__ );
-               return $s;
+               
+               // Stub - see ResourceLoaderSiteModule, CologneBlue, Simple and Standard skins override this
+               
+               return '';
        }
 
        /**
         * Generate user stylesheet for action=raw&gen=css
         */
        public function generateUserStylesheet() {
-               wfProfileIn( __METHOD__ );
-               $s = "/* generated user stylesheet */\n" .
-                       $this->reallyGenerateUserStylesheet();
-               wfProfileOut( __METHOD__ );
-               return $s;
+               
+               // Stub - see ResourceLoaderUserModule, CologneBlue, Simple and Standard skins override this
+               
+               return '';
        }
 
        /**
         * Split for easier subclassing in SkinSimple, SkinStandard and SkinCologneBlue
+        * Anything in here won't be generated if $wgAllowUserCssPrefs is false.
         */
-       protected function reallyGenerateUserStylesheet(){
-               global $wgUser;
-               $s = '';
-               if( ( $undopt = $wgUser->getOption( 'underline' ) ) < 2 ) {
-                       $underline = $undopt ? 'underline' : 'none';
-                       $s .= "a { text-decoration: $underline; }\n";
-               }
-               if( $wgUser->getOption( 'highlightbroken' ) ) {
-                       $s .= "a.new, #quickbar a.new { color: #CC2200; }\n";
-               } else {
-                       $s .= <<<END
-a.new, #quickbar a.new,
-a.stub, #quickbar a.stub {
-       color: inherit;
-}
-a.new:after, #quickbar a.new:after {
-       content: "?";
-       color: #CC2200;
-}
-a.stub:after, #quickbar a.stub:after {
-       content: "!";
-       color: #772233;
-}
-END;
-               }
-               if( $wgUser->getOption( 'justify' ) ) {
-                       $s .= "#article, #bodyContent, #mw_content { text-align: justify; }\n";
-               }
-               if( !$wgUser->getOption( 'showtoc' ) ) {
-                       $s .= "#toc { display: none; }\n";
-               }
-               if( !$wgUser->getOption( 'editsection' ) ) {
-                       $s .= ".editsection { display: none; }\n";
-               }
-               $fontstyle = $wgUser->getOption( 'editfont' );
-               if ( $fontstyle !== 'default' ) {
-                       $s .= "textarea { font-family: $fontstyle; }\n";
-               }
-               return $s;
+       protected function reallyGenerateUserStylesheet() {
+               
+               // Stub - see  ResourceLoaderUserModule, CologneBlue, Simple and Standard skins override this
+               
+               return '';
        }
 
        /**
         * @private
         */
        function setupUserCss( OutputPage $out ) {
-               global $wgRequest, $wgContLang, $wgUser;
-               global $wgAllowUserCss, $wgUseSiteCss, $wgSquidMaxage, $wgStylePath;
+               global $wgRequest;
+               global $wgUseSiteCss, $wgAllowUserCss, $wgAllowUserCssPrefs;
 
                wfProfileIn( __METHOD__ );
 
                $this->setupSkinUserCss( $out );
-
-               $siteargs = array(
-                       'action' => 'raw',
-                       'maxage' => $wgSquidMaxage,
-               );
-
                // Add any extension CSS
                foreach ( $out->getExtStyle() as $url ) {
                        $out->addStyle( $url );
                }
 
-               // If we use the site's dynamic CSS, throw that in, too
                // Per-site custom styles
-               if( $wgUseSiteCss ) {
-                       global $wgHandheldStyle;
-                       $query = wfArrayToCGI( array(
-                               'usemsgcache' => 'yes',
-                               'ctype' => 'text/css',
-                               'smaxage' => $wgSquidMaxage
-                       ) + $siteargs );
-                       # Site settings must override extension css! (bug 15025)
-                       $out->addStyle( self::makeNSUrl( 'Common.css', $query, NS_MEDIAWIKI ) );
-                       $out->addStyle( self::makeNSUrl( 'Print.css', $query, NS_MEDIAWIKI ), 'print' );
-                       if( $wgHandheldStyle ) {
-                               $out->addStyle( self::makeNSUrl( 'Handheld.css', $query, NS_MEDIAWIKI ), 'handheld' );
-                       }
-                       $out->addStyle( self::makeNSUrl( $this->getSkinName() . '.css', $query, NS_MEDIAWIKI ) );
+               if ( $wgUseSiteCss ) {
+                       $out->addModuleStyles( 'site' );
                }
 
-               if( $wgUser->isLoggedIn() ) {
-                       // Ensure that logged-in users' generated CSS isn't clobbered
-                       // by anons' publicly cacheable generated CSS.
-                       $siteargs['smaxage'] = '0';
-                       $siteargs['ts'] = $wgUser->mTouched;
-               }
-               // Per-user styles based on preferences
-               $siteargs['gen'] = 'css';
-               if( ( $us = $wgRequest->getVal( 'useskin', '' ) ) !== '' ) {
-                       $siteargs['useskin'] = $us;
-               }
-               $out->addStyle( self::makeUrl( '-', wfArrayToCGI( $siteargs ) ) );
-
-               // Per-user custom style pages
-               if( $wgAllowUserCss && $wgUser->isLoggedIn() ) {
-                       $action = $wgRequest->getVal( 'action' );
-                       # If we're previewing the CSS page, use it
-                       if( $this->mTitle->isCssSubpage() && $this->userCanPreview( $action ) ) {
+               // Per-user custom styles
+               if ( $wgAllowUserCss ) {
+                       if ( $this->mTitle->isCssSubpage() && $this->userCanPreview( $wgRequest->getVal( 'action' ) ) ) {
                                // @FIXME: properly escape the cdata!
                                $out->addInlineStyle( $wgRequest->getText( 'wpTextbox1' ) );
                        } else {
-                               $out->addStyle( self::makeUrl( $this->userpage . '/' . $this->getSkinName() .'.css',
-                                       'action=raw&ctype=text/css' ) );
+                               $out->addModuleStyles( 'user' );
                        }
                }
 
+               // Per-user preference styles
+               if ( $wgAllowUserCssPrefs ) {
+                       $out->addModuleStyles( 'user.options' );
+               }
+
                wfProfileOut( __METHOD__ );
        }
 
+       /**
+        * Get the query to generate a dynamic stylesheet
+        *
+        * @return array
+        */
+       public static function getDynamicStylesheetQuery() {
+               global $wgSquidMaxage;
+
+               return array(
+                               'action' => 'raw',
+                               'maxage' => $wgSquidMaxage,
+                               'usemsgcache' => 'yes',
+                               'ctype' => 'text/css',
+                               'smaxage' => $wgSquidMaxage,
+                       );
+       }
+
        /**
         * Add skin specific stylesheets
         * @param $out OutputPage
         */
        function setupSkinUserCss( OutputPage $out ) {
-               $out->addStyle( 'common/shared.css' );
-               $out->addStyle( 'common/oldshared.css' );
+               $out->addModuleStyles( 'mediawiki.legacy.shared' );
+               $out->addModuleStyles( 'mediawiki.legacy.oldshared' );
+               // TODO: When converting old skins to use ResourceLoader (or removing them) the following should be reconsidered
                $out->addStyle( $this->getStylesheet() );
                $out->addStyle( 'common/common_rtl.css', '', '', 'rtl' );
        }
 
-       function getBodyOptions() {
-               global $wgUser, $wgOut, $wgRequest, $wgContLang;
-
-               extract( $wgRequest->getValues( 'oldid', 'redirect', 'diff' ) );
-
-               if ( 0 != $this->mTitle->getNamespace() ) {
-                       $a = array( 'bgcolor' => '#ffffec' );
-               }
-               else $a = array( 'bgcolor' => '#FFFFFF' );
-               if( $wgOut->isArticle() && $wgUser->getOption( 'editondblclick' ) &&
-                 $this->mTitle->quickUserCan( 'edit' ) ) {
-                       $s = $this->mTitle->getFullURL( $this->editUrlOptions() );
-                       $s = 'document.location = "' .Xml::escapeJsString( $s ) .'";';
-                       $a += array( 'ondblclick' => $s );
-               }
-               $a['onload'] = $wgOut->getOnloadHandler();
-               $a['class'] =
-                       'mediawiki' .
-                       ' '.( $wgContLang->getDir() ).
-                       ' '.$this->getPageClasses( $this->mTitle ) .
-                       ' skin-'. Sanitizer::escapeClass( $this->getSkinName() );
-               return $a;
-       }
-
        function getPageClasses( $title ) {
-               $numeric = 'ns-'.$title->getNamespace();
-               if( $title->getNamespace() == NS_SPECIAL ) {
+               $numeric = 'ns-' . $title->getNamespace();
+
+               if ( $title->getNamespace() == NS_SPECIAL ) {
                        $type = 'ns-special';
-               } elseif( $title->isTalkPage() ) {
+               } elseif ( $title->isTalkPage() ) {
                        $type = 'ns-talk';
                } else {
                        $type = 'ns-subject';
                }
-               $name = Sanitizer::escapeClass( 'page-'.$title->getPrefixedText() );
+
+               $name = Sanitizer::escapeClass( 'page-' . $title->getPrefixedText() );
+
                return "$numeric $type $name";
        }
 
+       /**
+        * This will be called by OutputPage::headElement when it is creating the
+        * <body> tag, skins can override it if they have a need to add in any
+        * body attributes or classes of their own.
+        */
+       function addToBodyAttributes( $out, &$bodyAttrs ) {
+               // does nothing by default
+       }
+
        /**
         * URL to the logo
         */
@@ -733,7 +713,8 @@ END;
                $s = '';
                $qb = $this->qbSetting();
 
-               if( $langlinks = $this->otherLanguages() ) {
+               $langlinks = $this->otherLanguages();
+               if ( $langlinks ) {
                        $rows = 2;
                        $borderhack = '';
                } else {
@@ -747,24 +728,28 @@ END;
 
                $shove = ( $qb != 0 );
                $left = ( $qb == 1 || $qb == 3 );
-               if( $wgContLang->isRTL() ) $left = !$left;
 
-               if( !$shove ) {
+               if ( $wgContLang->isRTL() ) {
+                       $left = !$left;
+               }
+
+               if ( !$shove ) {
                        $s .= "<td class='top' align='left' valign='top' rowspan='{$rows}'>\n" .
-                         $this->logoText() . '</td>';
-               } elseif( $left ) {
+                               $this->logoText() . '</td>';
+               } elseif ( $left ) {
                        $s .= $this->getQuickbarCompensator( $rows );
                }
+
                $l = $wgContLang->alignStart();
                $s .= "<td {$borderhack} align='$l' valign='top'>\n";
 
                $s .= $this->topLinks();
-               $s .= "<p class='subtitle'>" . $this->pageTitleLinks() . "</p>\n";
+               $s .= '<p class="subtitle">' . $this->pageTitleLinks() . "</p>\n";
 
                $r = $wgContLang->alignEnd();
                $s .= "</td>\n<td {$borderhack} valign='top' align='$r' nowrap='nowrap'>";
                $s .= $this->nameAndLogin();
-               $s .= "\n<br />" . $this->searchForm() . "</td>";
+               $s .= "\n<br />" . $this->searchForm() . '</td>';
 
                if ( $langlinks ) {
                        $s .= "</tr>\n<tr>\n<td class='top' colspan=\"2\">$langlinks</td>\n";
@@ -773,26 +758,30 @@ END;
                if ( $shove && !$left ) { # Right
                        $s .= $this->getQuickbarCompensator( $rows );
                }
+
                $s .= "</tr>\n</table>\n</div>\n";
                $s .= "\n<div id='article'>\n";
 
                $notice = wfGetSiteNotice();
-               if( $notice ) {
+
+               if ( $notice ) {
                        $s .= "\n<div id='siteNotice'>$notice</div>\n";
                }
                $s .= $this->pageTitle();
                $s .= $this->pageSubtitle();
                $s .= $this->getCategories();
+
                wfProfileOut( __METHOD__ );
                return $s;
        }
 
-
        function getCategoryLinks() {
                global $wgOut, $wgUseCategoryBrowser;
                global $wgContLang, $wgUser;
 
-               if( count( $wgOut->mCategoryLinks ) == 0 ) return '';
+               if ( count( $wgOut->mCategoryLinks ) == 0 ) {
+                       return '';
+               }
 
                # Separator
                $sep = wfMsgExt( 'catseparator', array( 'parsemag', 'escapenoentities' ) );
@@ -806,6 +795,7 @@ END;
                $allCats = $wgOut->getCategoryLinks();
                $s = '';
                $colon = wfMsgExt( 'colon-separator', 'escapenoentities' );
+
                if ( !empty( $allCats['normal'] ) ) {
                        $t = $embed . implode( "{$pop} {$sep} {$embed}" , $allCats['normal'] ) . $pop;
 
@@ -818,28 +808,29 @@ END;
                # Hidden categories
                if ( isset( $allCats['hidden'] ) ) {
                        if ( $wgUser->getBoolOption( 'showhiddencats' ) ) {
-                               $class ='mw-hidden-cats-user-shown';
+                               $class = 'mw-hidden-cats-user-shown';
                        } elseif ( $this->mTitle->getNamespace() == NS_CATEGORY ) {
                                $class = 'mw-hidden-cats-ns-shown';
                        } else {
                                $class = 'mw-hidden-cats-hidden';
                        }
+
                        $s .= "<div id=\"mw-hidden-catlinks\" class=\"$class\">" .
                                wfMsgExt( 'hidden-categories', array( 'parsemag', 'escapenoentities' ), count( $allCats['hidden'] ) ) .
                                $colon . $embed . implode( "$pop $sep $embed", $allCats['hidden'] ) . $pop .
-                               "</div>";
+                               '</div>';
                }
 
                # optional 'dmoz-like' category browser. Will be shown under the list
                # of categories an article belong to
-               if( $wgUseCategoryBrowser ){
+               if ( $wgUseCategoryBrowser ) {
                        $s .= '<br /><hr />';
 
                        # get a big array of the parents tree
                        $parenttree = $this->mTitle->getParentCategoryTree();
                        # Skin object passed by reference cause it can not be
                        # accessed under the method subfunction drawCategoryBrowser
-                       $tempout = explode( "\n", Skin::drawCategoryBrowser( $parenttree, $this ) );
+                       $tempout = explode( "\n", $this->drawCategoryBrowser( $parenttree, $this ) );
                        # Clean out bogus first entry and sort them
                        unset( $tempout[0] );
                        asort( $tempout );
@@ -856,20 +847,23 @@ END;
         * @param &skin Object: skin passed by reference
         * @return String separated by &gt;, terminate with "\n"
         */
-       function drawCategoryBrowser( $tree, &$skin ){
+       function drawCategoryBrowser( $tree, &$skin ) {
                $return = '';
-               foreach( $tree as $element => $parent ) {
-                       if( empty( $parent ) ) {
+
+               foreach ( $tree as $element => $parent ) {
+                       if ( empty( $parent ) ) {
                                # element start a new list
                                $return .= "\n";
                        } else {
                                # grab the others elements
-                               $return .= Skin::drawCategoryBrowser( $parent, $skin ) . ' &gt; ';
+                               $return .= $this->drawCategoryBrowser( $parent, $skin ) . ' &gt; ';
                        }
+
                        # add our current element to the list
                        $eltitle = Title::newFromText( $element );
                        $return .=  $skin->link( $eltitle, $eltitle->getText() );
                }
+
                return $return;
        }
 
@@ -878,13 +872,14 @@ END;
 
                $classes = 'catlinks';
 
-               // Check what we're showing
                global $wgOut, $wgUser;
+
+               // Check what we're showing
                $allCats = $wgOut->getCategoryLinks();
                $showHidden = $wgUser->getBoolOption( 'showhiddencats' ) ||
                                                $this->mTitle->getNamespace() == NS_CATEGORY;
 
-               if( empty($allCats['normal']) && !( !empty($allCats['hidden']) && $showHidden ) ) {
+               if ( empty( $allCats['normal'] ) && !( !empty( $allCats['hidden'] ) && $showHidden ) ) {
                        $classes .= ' catlinks-allhidden';
                }
 
@@ -892,7 +887,7 @@ END;
        }
 
        function getQuickbarCompensator( $rows = 1 ) {
-               return "<td width='152' rowspan='{$rows}'>&nbsp;</td>";
+               return "<td width='152' rowspan='{$rows}'>&#160;</td>";
        }
 
        /**
@@ -912,10 +907,10 @@ END;
        protected function afterContentHook() {
                $data = '';
 
-               if( wfRunHooks( 'SkinAfterContent', array( &$data ) ) ){
+               if ( wfRunHooks( 'SkinAfterContent', array( &$data, $this ) ) ) {
                        // adding just some spaces shouldn't toggle the output
                        // of the whole <div/>, so we use trim() here
-                       if( trim( $data ) != '' ){
+                       if ( trim( $data ) != '' ) {
                                // Doing this here instead of in the skins to
                                // ensure that the div has the same ID in all
                                // skins
@@ -937,11 +932,13 @@ END;
         */
        protected function generateDebugHTML() {
                global $wgShowDebug, $wgOut;
+
                if ( $wgShowDebug ) {
                        $listInternals = $this->formatDebugHTML( $wgOut->mDebugtext );
                        return "\n<hr />\n<strong>Debug data:</strong><ul style=\"font-family:monospace;\" id=\"mw-debug-html\">" .
                                $listInternals . "</ul>\n";
                }
+
                return '';
        }
 
@@ -949,14 +946,15 @@ END;
                $lines = explode( "\n", $debugText );
                $curIdent = 0;
                $ret = '<li>';
-               foreach( $lines as $line ) {
-                       $m = array();
+
+               foreach ( $lines as $line ) {
                        $display = ltrim( $line );
                        $ident = strlen( $line ) - strlen( $display );
                        $diff = $ident - $curIdent;
 
-                       if ( $display == '' )
+                       if ( $display == '' ) {
                                $display = "\xc2\xa0";
+                       }
 
                        if ( !$ident && $diff < 0 && substr( $display, 0, 9 ) != 'Entering ' && substr( $display, 0, 8 ) != 'Exiting ' ) {
                                $ident = $curIdent;
@@ -966,17 +964,20 @@ END;
                                $display = htmlspecialchars( $display );
                        }
 
-                       if ( $diff < 0 )
+                       if ( $diff < 0 ) {
                                $ret .= str_repeat( "</li></ul>\n", -$diff ) . "</li><li>\n";
-                       elseif ( $diff == 0 )
+                       } elseif ( $diff == 0 ) {
                                $ret .= "</li><li>\n";
-                       else
+                       } else {
                                $ret .= str_repeat( "<ul><li>\n", $diff );
+                       }
                        $ret .= $display . "\n";
 
                        $curIdent = $ident;
                }
+
                $ret .= str_repeat( '</li></ul>', $curIdent ) . '</li>';
+
                return $ret;
        }
 
@@ -991,18 +992,20 @@ END;
 
        /**
         * This gets called shortly before the </body> tag.
+        * @param $out OutputPage object
         * @return String HTML-wrapped JS code to be put before </body>
         */
-       function bottomScripts() {
-               $bottomScriptText = "\n" . Html::inlineScript( 'if (window.runOnloadHook) runOnloadHook();' ) . "\n";
+       function bottomScripts( $out ) {
+               $bottomScriptText = "\n" . $out->getHeadScripts( $this );
                wfRunHooks( 'SkinAfterBottomScripts', array( $this, &$bottomScriptText ) );
+
                return $bottomScriptText;
        }
 
        /** @return string Retrievied from HTML text */
        function printSource() {
                $url = htmlspecialchars( $this->mTitle->getFullURL() );
-               return wfMsg( 'retrievedfrom', '<a href="'.$url.'">'.$url.'</a>' );
+               return wfMsg( 'retrievedfrom', '<a href="' . $url . '">' . $url . '</a>' );
        }
 
        function printFooter() {
@@ -1011,7 +1014,9 @@ END;
        }
 
        /** overloaded by derived classes */
-       function doAfterContent() { return '</div></div>'; }
+       function doAfterContent() {
+               return '</div></div>';
+       }
 
        function pageTitleLinks() {
                global $wgOut, $wgUser, $wgRequest, $wgLang;
@@ -1022,11 +1027,14 @@ END;
 
                $s[] = $this->printableLink();
                $disclaimer = $this->disclaimerLink(); # may be empty
-               if( $disclaimer ) {
+
+               if ( $disclaimer ) {
                        $s[] = $disclaimer;
                }
+
                $privacy = $this->privacyLink(); # may be empty too
-               if( $privacy ) {
+
+               if ( $privacy ) {
                        $s[] = $privacy;
                }
 
@@ -1034,13 +1042,15 @@ END;
                        if ( $this->mTitle->getNamespace() == NS_FILE ) {
                                $name = $this->mTitle->getDBkey();
                                $image = wfFindFile( $this->mTitle );
-                               if( $image ) {
+
+                               if ( $image ) {
                                        $link = htmlspecialchars( $image->getURL() );
                                        $style = $this->getInternalLinkAttributes( $link, $name );
                                        $s[] = "<a href=\"{$link}\"{$style}>{$name}</a>";
                                }
                        }
                }
+
                if ( 'history' == $action || isset( $diff ) || isset( $oldid ) ) {
                        $s[] .= $this->link(
                                        $this->mTitle,
@@ -1054,7 +1064,7 @@ END;
                if ( $wgUser->getNewtalk() ) {
                        # do not show "You have new messages" text when we are viewing our
                        # own talk page
-                       if( !$this->mTitle->equals( $wgUser->getTalkPage() ) ) {
+                       if ( !$this->mTitle->equals( $wgUser->getTalkPage() ) ) {
                                $tl = $this->link(
                                        $wgUser->getTalkPage(),
                                        wfMsgHtml( 'newmessageslink' ),
@@ -1070,7 +1080,7 @@ END;
                                        array( 'diff' => 'cur' ),
                                        array( 'known', 'noclasses' )
                                );
-                               $s[] = '<strong>'. wfMsg( 'youhavenewmessages', $tl, $dl ) . '</strong>';
+                               $s[] = '<strong>' . wfMsg( 'youhavenewmessages', $tl, $dl ) . '</strong>';
                                # disable caching
                                $wgOut->setSquidMaxage( 0 );
                                $wgOut->enableClientCache( false );
@@ -1078,26 +1088,30 @@ END;
                }
 
                $undelete = $this->getUndeleteLink();
-               if( !empty( $undelete ) ) {
+
+               if ( !empty( $undelete ) ) {
                        $s[] = $undelete;
                }
+
                return $wgLang->pipeList( $s );
        }
 
        function getUndeleteLink() {
-               global $wgUser, $wgContLang, $wgLang, $wgRequest;
+               global $wgUser, $wgLang, $wgRequest;
 
                $action = $wgRequest->getVal( 'action', 'view' );
 
                if ( $wgUser->isAllowed( 'deletedhistory' ) &&
                        ( $this->mTitle->getArticleId() == 0 || $action == 'history' ) ) {
                        $n = $this->mTitle->isDeleted();
+
                        if ( $n ) {
                                if ( $wgUser->isAllowed( 'undelete' ) ) {
                                        $msg = 'thisisdeleted';
                                } else {
                                        $msg = 'viewdeleted';
                                }
+
                                return wfMsg(
                                        $msg,
                                        $this->link(
@@ -1110,6 +1124,7 @@ END;
                                );
                        }
                }
+
                return '';
        }
 
@@ -1123,8 +1138,8 @@ END;
                        $s[] = "<a href=\"$printurl\" rel=\"alternate\">" . wfMsg( 'printableversion' ) . '</a>';
                }
 
-               if( $wgOut->isSyndicated() ) {
-                       foreach( $wgFeedClasses as $format => $class ) {
+               if ( $wgOut->isSyndicated() ) {
+                       foreach ( $wgFeedClasses as $format => $class ) {
                                $feedurl = $wgRequest->escapeAppendQuery( "feed=$format" );
                                $s[] = "<a href=\"$feedurl\" rel=\"alternate\" type=\"application/{$format}+xml\""
                                                . " class=\"feedlink\">" . wfMsgHtml( "feed-$format" ) . "</a>";
@@ -1133,6 +1148,10 @@ END;
                return $wgLang->pipeList( $s );
        }
 
+       /**
+        * Gets the h1 element with the page title.
+        * @return string
+        */
        function pageTitle() {
                global $wgOut;
                $s = '<h1 class="pagetitle">' . $wgOut->getPageTitle() . '</h1>';
@@ -1143,35 +1162,43 @@ END;
                global $wgOut;
 
                $sub = $wgOut->getSubtitle();
-               if ( '' == $sub ) {
+
+               if ( $sub == '' ) {
                        global $wgExtraSubtitle;
                        $sub = wfMsgExt( 'tagline', 'parsemag' ) . $wgExtraSubtitle;
                }
+
                $subpages = $this->subPageSubtitle();
                $sub .= !empty( $subpages ) ? "</p><p class='subpages'>$subpages" : '';
                $s = "<p class='subtitle'>{$sub}</p>\n";
+
                return $s;
        }
 
        function subPageSubtitle() {
                $subpages = '';
-               if( !wfRunHooks( 'SkinSubPageSubtitle', array( &$subpages ) ) )
+
+               if ( !wfRunHooks( 'SkinSubPageSubtitle', array( &$subpages, $this ) ) ) {
                        return $subpages;
+               }
 
                global $wgOut;
-               if( $wgOut->isArticle() && MWNamespace::hasSubpages( $this->mTitle->getNamespace() ) ) {
+
+               if ( $wgOut->isArticle() && MWNamespace::hasSubpages( $this->mTitle->getNamespace() ) ) {
                        $ptext = $this->mTitle->getPrefixedText();
-                       if( preg_match( '/\//', $ptext ) ) {
+                       if ( preg_match( '/\//', $ptext ) ) {
                                $links = explode( '/', $ptext );
                                array_pop( $links );
                                $c = 0;
                                $growinglink = '';
                                $display = '';
-                               foreach( $links as $link ) {
+
+                               foreach ( $links as $link ) {
                                        $growinglink .= $link;
                                        $display .= $link;
                                        $linkObj = Title::newFromText( $growinglink );
-                                       if( is_object( $linkObj ) && $linkObj->exists() ){
+
+                                       if ( is_object( $linkObj ) && $linkObj->exists() ) {
                                                $getlink = $this->link(
                                                        $linkObj,
                                                        htmlspecialchars( $display ),
@@ -1179,12 +1206,15 @@ END;
                                                        array(),
                                                        array( 'known', 'noclasses' )
                                                );
+
                                                $c++;
-                                               if( $c > 1 ) {
+
+                                               if ( $c > 1 ) {
                                                        $subpages .= wfMsgExt( 'pipe-separator', 'escapenoentities' );
                                                } else  {
                                                        $subpages .= '&lt; ';
                                                }
+
                                                $subpages .= $getlink;
                                                $display = '';
                                        } else {
@@ -1194,6 +1224,7 @@ END;
                                }
                        }
                }
+
                return $subpages;
        }
 
@@ -1211,8 +1242,9 @@ END;
                $logoutPage = $wgContLang->specialPage( 'Userlogout' );
 
                $ret = '';
+
                if ( $wgUser->isAnon() ) {
-                       if( $this->showIPinHeader() ) {
+                       if ( $this->showIPinHeader() ) {
                                $name = wfGetIP();
 
                                $talkLink = $this->link( $wgUser->getTalkPage(),
@@ -1225,6 +1257,7 @@ END;
 
                        $returnTo = $this->mTitle->getPrefixedDBkey();
                        $query = array();
+
                        if ( $logoutPage != $returnTo ) {
                                $query['returnto'] = $returnTo;
                        }
@@ -1249,9 +1282,10 @@ END;
                                        SpecialPage::getTitleFor( 'Userlogout' ), wfMsg( 'logout' ),
                                        array(), array( 'returnto' => $returnTo )
                                ),
-                               $this->specialLink( 'preferences' ),
+                               $this->specialLink( 'Preferences' ),
                        ) );
                }
+
                $ret = $wgLang->pipeList( array(
                        $ret,
                        $this->link(
@@ -1274,18 +1308,20 @@ END;
 
        function searchForm() {
                global $wgRequest, $wgUseTwoButtonsSearchForm;
+
                $search = $wgRequest->getText( 'search' );
 
-               $s = '<form id="searchform'.$this->searchboxes.'" name="search" class="inline" method="post" action="'
+               $s = '<form id="searchform' . $this->searchboxes . '" name="search" class="inline" method="post" action="'
                  . $this->escapeSearchLink() . "\">\n"
-                 . '<input type="text" id="searchInput'.$this->searchboxes.'" name="search" size="19" value="'
+                 . '<input type="text" id="searchInput' . $this->searchboxes . '" name="search" size="19" value="'
                  . htmlspecialchars( substr( $search, 0, 256 ) ) . "\" />\n"
                  . '<input type="submit" name="go" value="' . wfMsg( 'searcharticle' ) . '" />';
 
-               if( $wgUseTwoButtonsSearchForm )
-                       $s .= '&nbsp;<input type="submit" name="fulltext" value="' . wfMsg( 'searchbutton' ) . "\" />\n";
-               else
+               if ( $wgUseTwoButtonsSearchForm ) {
+                       $s .= '&#160;<input type="submit" name="fulltext" value="' . wfMsg( 'searchbutton' ) . "\" />\n";
+               } else {
                        $s .= ' <a href="' . $this->escapeSearchLink() . '" rel="search">' . wfMsg( 'powersearch-legend' ) . "</a>\n";
+               }
 
                $s .= '</form>';
 
@@ -1300,25 +1336,26 @@ END;
 
                $s = array(
                        $this->mainPageLink(),
-                       $this->specialLink( 'recentchanges' )
+                       $this->specialLink( 'Recentchanges' )
                );
 
                if ( $wgOut->isArticleRelated() ) {
                        $s[] = $this->editThisPage();
                        $s[] = $this->historyLink();
                }
+
                # Many people don't like this dropdown box
-               #$s[] = $this->specialPagesList();
+               # $s[] = $this->specialPagesList();
 
-               if( $this->variantLinks() ) {
+               if ( $this->variantLinks() ) {
                        $s[] = $this->variantLinks();
                }
 
-               if( $this->extensionTabLinks() ) {
+               if ( $this->extensionTabLinks() ) {
                        $s[] = $this->extensionTabLinks();
                }
 
-               // FIXME: Is using Language::pipeList impossible here? Do not quite understand the use of the newline
+               // @todo FIXME: Is using Language::pipeList impossible here? Do not quite understand the use of the newline
                return implode( $s, wfMsgExt( 'pipe-separator', 'escapenoentities' ) . "\n" );
        }
 
@@ -1333,13 +1370,13 @@ END;
                $out = '';
                $s = array();
                wfRunHooks( 'SkinTemplateTabs', array( $this, &$tabs ) );
-               foreach( $tabs as $tab ) {
+               foreach ( $tabs as $tab ) {
                        $s[] = Xml::element( 'a',
                                array( 'href' => $tab['href'] ),
                                $tab['text'] );
                }
 
-               if( count( $s ) ) {
+               if ( count( $s ) ) {
                        global $wgLang;
 
                        $out = wfMsgExt( 'pipe-separator' , 'escapenoentities' );
@@ -1355,20 +1392,26 @@ END;
         */
        function variantLinks() {
                $s = '';
+
                /* show links to different language variants */
                global $wgDisableLangConversion, $wgLang, $wgContLang;
+
                $variants = $wgContLang->getVariants();
-               if( !$wgDisableLangConversion && sizeof( $variants ) > 1 ) {
-                       foreach( $variants as $code ) {
+
+               if ( !$wgDisableLangConversion && sizeof( $variants ) > 1 ) {
+                       foreach ( $variants as $code ) {
                                $varname = $wgContLang->getVariantname( $code );
-                               if( $varname == 'disable' )
+
+                               if ( $varname == 'disable' ) {
                                        continue;
+                               }
                                $s = $wgLang->pipeList( array(
                                        $s,
-                                       '<a href="' . $this->mTitle->escapeLocalUrl( 'variant=' . $code ) . '">' . htmlspecialchars( $varname ) . '</a>'
+                                       '<a href="' . $this->mTitle->escapeLocalURL( 'variant=' . $code ) . '">' . htmlspecialchars( $varname ) . '</a>'
                                ) );
                        }
                }
+
                return $s;
        }
 
@@ -1379,26 +1422,33 @@ END;
                $s = '';
                if ( $wgOut->isArticleRelated() ) {
                        $element[] = '<strong>' . $this->editThisPage() . '</strong>';
+
                        if ( $wgUser->isLoggedIn() ) {
                                $element[] = $this->watchThisPage();
                        }
+
                        $element[] = $this->talkLink();
                        $element[] = $this->historyLink();
                        $element[] = $this->whatLinksHere();
                        $element[] = $this->watchPageLinksLink();
 
-                       if( $wgUseTrackbacks )
+                       if ( $wgUseTrackbacks ) {
                                $element[] = $this->trackbackLink();
+                       }
 
-                       if ( $this->mTitle->getNamespace() == NS_USER
-                           || $this->mTitle->getNamespace() == NS_USER_TALK ){
+                       if (
+                               $this->mTitle->getNamespace() == NS_USER ||
+                               $this->mTitle->getNamespace() == NS_USER_TALK
+                       ) {
                                $id = User::idFromName( $this->mTitle->getText() );
                                $ip = User::isIP( $this->mTitle->getText() );
 
-                               if( $id || $ip ) { # both anons and non-anons have contri list
+                               # Both anons and non-anons have contributions list
+                               if ( $id || $ip ) {
                                        $element[] = $this->userContribsLink();
                                }
-                               if( $this->showEmailUser( $id ) ) {
+
+                               if ( $this->showEmailUser( $id ) ) {
                                        $element[] = $this->emailUserLink();
                                }
                        }
@@ -1407,10 +1457,21 @@ END;
 
                        if ( $this->mTitle->getArticleId() ) {
                                $s .= "\n<br />";
-                               if( $wgUser->isAllowed( 'delete' ) ) { $s .= $this->deleteThisPage(); }
-                               if( $wgUser->isAllowed( 'protect' ) ) { $s .= $sep . $this->protectThisPage(); }
-                               if( $wgUser->isAllowed( 'move' ) ) { $s .= $sep . $this->moveThisPage(); }
+
+                               // Delete/protect/move links for privileged users
+                               if ( $wgUser->isAllowed( 'delete' ) ) {
+                                       $s .= $this->deleteThisPage();
+                               }
+
+                               if ( $wgUser->isAllowed( 'protect' ) ) {
+                                       $s .= $sep . $this->protectThisPage();
+                               }
+
+                               if ( $wgUser->isAllowed( 'move' ) ) {
+                                       $s .= $sep . $this->moveThisPage();
+                               }
                        }
+
                        $s .= "<br />\n" . $this->otherLanguages();
                }
 
@@ -1421,32 +1482,39 @@ END;
                global $wgOut, $wgLang, $wgArticle, $wgRequest, $wgUser;
                global $wgDisableCounters, $wgMaxCredits, $wgShowCreditsIfMax, $wgPageShowWatchingUsers;
 
-               $oldid = $wgRequest->getVal( 'oldid' );
-               $diff = $wgRequest->getVal( 'diff' );
-               if ( ! $wgOut->isArticle() ) { return ''; }
-               if( !$wgArticle instanceOf Article ) { return ''; }
-               if ( isset( $oldid ) || isset( $diff ) ) { return ''; }
-               if ( 0 == $wgArticle->getID() ) { return ''; }
+               if ( !is_null( $wgRequest->getVal( 'oldid' ) ) || !is_null( $wgRequest->getVal( 'diff' ) ) ) {
+                       return '';
+               }
+
+               if ( !$wgOut->isArticle() || !$this->mTitle->exists() ) {
+                       return '';
+               }
 
                $s = '';
+
                if ( !$wgDisableCounters ) {
                        $count = $wgLang->formatNum( $wgArticle->getCount() );
+
                        if ( $count ) {
                                $s = wfMsgExt( 'viewcount', array( 'parseinline' ), $count );
                        }
                }
 
-               if( $wgMaxCredits != 0 ){
+               if ( $wgMaxCredits != 0 ) {
                        $s .= ' ' . Credits::getCredits( $wgArticle, $wgMaxCredits, $wgShowCreditsIfMax );
                } else {
                        $s .= $this->lastModified();
                }
 
-               if( $wgPageShowWatchingUsers && $wgUser->getOption( 'shownumberswatching' ) ) {
+               if ( $wgPageShowWatchingUsers && $wgUser->getOption( 'shownumberswatching' ) ) {
                        $dbr = wfGetDB( DB_SLAVE );
-                       $res = $dbr->select( 'watchlist',
+                       $res = $dbr->select(
+                               'watchlist',
                                array( 'COUNT(*) AS n' ),
-                               array( 'wl_title' => $dbr->strencode( $this->mTitle->getDBkey() ), 'wl_namespace' => $this->mTitle->getNamespace() ),
+                               array(
+                                       'wl_title' => $dbr->strencode( $this->mTitle->getDBkey() ),
+                                       'wl_namespace' => $this->mTitle->getNamespace()
+                               ),
                                __METHOD__
                        );
                        $x = $dbr->fetchObject( $res );
@@ -1460,12 +1528,12 @@ END;
        }
 
        function getCopyright( $type = 'detect' ) {
-               global $wgRightsPage, $wgRightsUrl, $wgRightsText, $wgRequest, $wgArticle;
+               global $wgRightsPage, $wgRightsUrl, $wgRightsText, $wgRequest;
 
                if ( $type == 'detect' ) {
                        $diff = $wgRequest->getVal( 'diff' );
-                       $isCur = $wgArticle && $wgArticle->isCurrent();
-                       if ( is_null( $diff ) && !$isCur && wfMsgForContent( 'history_copyright' ) !== '-' ) {
+
+                       if ( is_null( $diff ) && !$this->isRevisionCurrent() && wfMsgForContent( 'history_copyright' ) !== '-' ) {
                                $type = 'history';
                        } else {
                                $type = 'normal';
@@ -1479,59 +1547,81 @@ END;
                }
 
                $out = '';
-               if( $wgRightsPage ) {
+
+               if ( $wgRightsPage ) {
                        $title = Title::newFromText( $wgRightsPage );
                        $link = $this->linkKnown( $title, $wgRightsText );
-               } elseif( $wgRightsUrl ) {
+               } elseif ( $wgRightsUrl ) {
                        $link = $this->makeExternalLink( $wgRightsUrl, $wgRightsText );
-               } elseif( $wgRightsText ) {
+               } elseif ( $wgRightsText ) {
                        $link = $wgRightsText;
                } else {
                        # Give up now
                        return $out;
                }
+
                // Allow for site and per-namespace customization of copyright notice.
-               if( isset($wgArticle) )
-                       wfRunHooks( 'SkinCopyrightFooter', array( $wgArticle->getTitle(), $type, &$msg, &$link ) );
+               $forContent = true;
+
+               wfRunHooks( 'SkinCopyrightFooter', array( $this->mTitle, $type, &$msg, &$link, &$forContent ) );
+
+               if ( $forContent ) {
+                       $out .= wfMsgForContent( $msg, $link );
+               } else {
+                       $out .= wfMsg( $msg, $link );
+               }
 
-               $out .= wfMsgForContent( $msg, $link );
                return $out;
        }
 
        function getCopyrightIcon() {
                global $wgRightsUrl, $wgRightsText, $wgRightsIcon, $wgCopyrightIcon;
+
                $out = '';
+
                if ( isset( $wgCopyrightIcon ) && $wgCopyrightIcon ) {
                        $out = $wgCopyrightIcon;
-               } else if ( $wgRightsIcon ) {
+               } elseif ( $wgRightsIcon ) {
                        $icon = htmlspecialchars( $wgRightsIcon );
+
                        if ( $wgRightsUrl ) {
                                $url = htmlspecialchars( $wgRightsUrl );
-                               $out .= '<a href="'.$url.'">';
+                               $out .= '<a href="' . $url . '">';
                        }
+
                        $text = htmlspecialchars( $wgRightsText );
                        $out .= "<img src=\"$icon\" alt=\"$text\" width=\"88\" height=\"31\" />";
+
                        if ( $wgRightsUrl ) {
                                $out .= '</a>';
                        }
                }
+
                return $out;
        }
 
+       /**
+        * Gets the powered by MediaWiki icon.
+        * @return string
+        */
        function getPoweredBy() {
                global $wgStylePath;
+
                $url = htmlspecialchars( "$wgStylePath/common/images/poweredby_mediawiki_88x31.png" );
-               $img = '<a href="http://www.mediawiki.org/"><img src="'.$url.'" height="31" width="88" alt="Powered by MediaWiki" /></a>';
-               return $img;
+               $text = '<a href="http://www.mediawiki.org/"><img src="' . $url . '" height="31" width="88" alt="Powered by MediaWiki" /></a>';
+               wfRunHooks( 'SkinGetPoweredBy', array( &$text, $this ) );       
+               return $text;
        }
 
        function lastModified() {
                global $wgLang, $wgArticle;
-               if( $this->mRevisionId && $this->mRevisionId != $wgArticle->getLatest()) {
-                       $timestamp = Revision::getTimestampFromId( $wgArticle->getTitle(), $this->mRevisionId );
+
+               if ( !$this->isRevisionCurrent() ) {
+                       $timestamp = Revision::getTimestampFromId( $this->mTitle, $this->mRevisionId );
                } else {
                        $timestamp = $wgArticle->getTimestamp();
                }
+
                if ( $timestamp ) {
                        $d = $wgLang->date( $timestamp, true );
                        $t = $wgLang->time( $timestamp, true );
@@ -1539,14 +1629,16 @@ END;
                } else {
                        $s = '';
                }
+
                if ( wfGetLB()->getLaggedSlaveMode() ) {
                        $s .= ' <strong>' . wfMsg( 'laggedslavemode' ) . '</strong>';
                }
+
                return $s;
        }
 
        function logoText( $align = '' ) {
-               if ( '' != $align ) {
+               if ( $align != '' ) {
                        $a = " align='{$align}'";
                } else {
                        $a = '';
@@ -1558,15 +1650,18 @@ END;
 
                $logourl = $this->getLogo();
                $s = "<a href='{$url}'><img{$a} src='{$logourl}' alt='[{$mp}]' /></a>";
+
                return $s;
        }
 
        /**
-        * show a drop-down box of special pages
+        * Show a drop-down box of special pages
         */
        function specialPagesList() {
-               global $wgUser, $wgContLang, $wgServer, $wgRedirectScript;
+               global $wgContLang, $wgServer, $wgRedirectScript;
+
                $pages = array_merge( SpecialPage::getRegularPages(), SpecialPage::getRestrictedPages() );
+
                foreach ( $pages as $name => $page ) {
                        $pages[$name] = $page->getDescription();
                }
@@ -1585,12 +1680,41 @@ END;
                        $p = $wgContLang->specialPage( $name );
                        $s .= "<option value=\"{$p}\">{$desc}</option>\n";
                }
+
                $s .= "</select>\n";
                $s .= "<input type='submit' value=\"{$go}\" name='redirect' />\n";
                $s .= "</form>\n";
+
                return $s;
        }
 
+       /**
+        * Renders a $wgFooterIcons icon acording to the method's arguments
+        * @param $icon Array: The icon to build the html for, see $wgFooterIcons for the format of this array
+        * @param $withImage Boolean: Whether to use the icon's image or output a text-only footericon
+        */
+       function makeFooterIcon( $icon, $withImage = 'withImage' ) {
+               if ( is_string( $icon ) ) {
+                       $html = $icon;
+               } else { // Assuming array
+                       $url = $icon["url"];
+                       unset( $icon["url"] );
+                       if ( isset( $icon["src"] ) && $withImage === 'withImage' ) {
+                               $html = Html::element( 'img', $icon ); // do this the lazy way, just pass icon data as an attribute array
+                       } else {
+                               $html = htmlspecialchars( $icon["alt"] );
+                       }
+                       if ( $url ) {
+                               $html = Html::rawElement( 'a', array( "href" => $url ), $html );
+                       }
+               }
+               return $html;
+       }
+
+       /**
+        * Gets the link to the wiki's main page.
+        * @return string
+        */
        function mainPageLink() {
                $s = $this->link(
                        Title::newMainPage(),
@@ -1599,12 +1723,13 @@ END;
                        array(),
                        array( 'known', 'noclasses' )
                );
+
                return $s;
        }
 
-       private function footerLink ( $desc, $page ) {
+       public function footerLink( $desc, $page ) {
                // if the link description has been set to "-" in the default language,
-               if ( wfMsgForContent( $desc )  == '-') {
+               if ( wfMsgForContent( $desc )  == '-' ) {
                        // then it is disabled, for all languages.
                        return '';
                } else {
@@ -1612,6 +1737,7 @@ END;
                        // language (which may or may not be the same as the default language),
                        // but we make the link target be the one site-wide page.
                        $title = Title::newFromText( wfMsgForContent( $page ) );
+
                        return $this->linkKnown(
                                $title,
                                wfMsgExt( $desc, array( 'parsemag', 'escapenoentities' ) )
@@ -1619,14 +1745,23 @@ END;
                }
        }
 
+       /**
+        * Gets the link to the wiki's privacy policy page.
+        */
        function privacyLink() {
                return $this->footerLink( 'privacy', 'privacypage' );
        }
 
+       /**
+        * Gets the link to the wiki's about page.
+        */
        function aboutLink() {
                return $this->footerLink( 'aboutsite', 'aboutpage' );
        }
 
+       /**
+        * Gets the link to the wiki's general disclaimers page.
+        */
        function disclaimerLink() {
                return $this->footerLink( 'disclaimers', 'disclaimerpage' );
        }
@@ -1637,9 +1772,9 @@ END;
                if ( !$wgOut->isArticleRelated() ) {
                        $s = wfMsg( 'protectedpage' );
                } else {
-                       if( $this->mTitle->quickUserCan( 'edit' ) && $this->mTitle->exists() ) {
+                       if ( $this->mTitle->quickUserCan( 'edit' ) && $this->mTitle->exists() ) {
                                $t = wfMsg( 'editthispage' );
-                       } elseif( $this->mTitle->quickUserCan( 'create' ) && !$this->mTitle->exists() ) {
+                       } elseif ( $this->mTitle->quickUserCan( 'create' ) && !$this->mTitle->exists() ) {
                                $t = wfMsg( 'create-this-page' );
                        } else {
                                $t = wfMsg( 'viewsource' );
@@ -1653,6 +1788,7 @@ END;
                                array( 'known', 'noclasses' )
                        );
                }
+
                return $s;
        }
 
@@ -1664,11 +1800,9 @@ END;
         * @private
         */
        function editUrlOptions() {
-               global $wgArticle;
-
                $options = array( 'action' => 'edit' );
 
-               if( $this->mRevisionId && ! $wgArticle->isCurrent() ) {
+               if ( !$this->isRevisionCurrent() ) {
                        $options['oldid'] = intval( $this->mRevisionId );
                }
 
@@ -1679,6 +1813,7 @@ END;
                global $wgUser, $wgRequest;
 
                $diff = $wgRequest->getVal( 'diff' );
+
                if ( $this->mTitle->getArticleId() && ( !$diff ) && $wgUser->isAllowed( 'delete' ) ) {
                        $t = wfMsg( 'deletethispage' );
 
@@ -1692,6 +1827,7 @@ END;
                } else {
                        $s = '';
                }
+
                return $s;
        }
 
@@ -1699,7 +1835,8 @@ END;
                global $wgUser, $wgRequest;
 
                $diff = $wgRequest->getVal( 'diff' );
-               if ( $this->mTitle->getArticleId() && ( ! $diff ) && $wgUser->isAllowed('protect') ) {
+
+               if ( $this->mTitle->getArticleId() && ( ! $diff ) && $wgUser->isAllowed( 'protect' ) ) {
                        if ( $this->mTitle->isProtected() ) {
                                $text = wfMsg( 'unprotectthispage' );
                                $query = array( 'action' => 'unprotect' );
@@ -1718,6 +1855,7 @@ END;
                } else {
                        $s = '';
                }
+
                return $s;
        }
 
@@ -1746,6 +1884,7 @@ END;
                } else {
                        $s = wfMsg( 'notanarticle' );
                }
+
                return $s;
        }
 
@@ -1796,7 +1935,7 @@ END;
        function showEmailUser( $id ) {
                global $wgUser;
                $targetUser = User::newFromId( $id );
-               return  $wgUser->canSendEmail() && # the sending user must have a confirmed email address
+               return $wgUser->canSendEmail() && # the sending user must have a confirmed email address
                        $targetUser->canReceiveEmail(); # the target user must have a confirmed email address and allow emails from users
        }
 
@@ -1812,7 +1951,8 @@ END;
 
        function watchPageLinksLink() {
                global $wgOut;
-               if ( ! $wgOut->isArticleRelated() ) {
+
+               if ( !$wgOut->isArticleRelated() ) {
                        return '(' . wfMsg( 'notanarticle' ) . ')';
                } else {
                        return $this->link(
@@ -1838,28 +1978,42 @@ END;
                }
 
                $a = $wgOut->getLanguageLinks();
+
                if ( 0 == count( $a ) ) {
                        return '';
                }
 
                $s = wfMsg( 'otherlanguages' ) . wfMsg( 'colon-separator' );
                $first = true;
-               if( $wgContLang->isRTL() ) $s .= '<span dir="LTR">';
-               foreach( $a as $l ) {
+
+               if ( $wgContLang->isRTL() ) {
+                       $s .= '<span dir="LTR">';
+               }
+
+               foreach ( $a as $l ) {
                        if ( !$first ) {
                                $s .= wfMsgExt( 'pipe-separator', 'escapenoentities' );
                        }
+
                        $first = false;
 
                        $nt = Title::newFromText( $l );
                        $url = $nt->escapeFullURL();
                        $text = $wgContLang->getLanguageName( $nt->getInterwiki() );
+                       $title = htmlspecialchars( $nt->getText() );
+
+                       if ( $text == '' ) {
+                               $text = $l;
+                       }
 
-                       if ( '' == $text ) { $text = $l; }
                        $style = $this->getExternalLinkAttributes();
-                       $s .= "<a href=\"{$url}\"{$style}>{$text}</a>";
+                       $s .= "<a href=\"{$url}\" title=\"{$title}\"{$style}>{$text}</a>";
                }
-               if( $wgContLang->isRTL() ) $s .= '</span>';
+
+               if ( $wgContLang->isRTL() ) {
+                       $s .= '</span>';
+               }
+
                return $s;
        }
 
@@ -1871,7 +2025,7 @@ END;
 
                $linkOptions = array();
 
-               if( $this->mTitle->isTalkPage() ) {
+               if ( $this->mTitle->isTalkPage() ) {
                        $link = $this->mTitle->getSubjectPage();
                        switch( $link->getNamespace() ) {
                                case NS_MAIN:
@@ -1886,7 +2040,7 @@ END;
                                case NS_FILE:
                                        $text = wfMsg( 'imagepage' );
                                        # Make link known if image exists, even if the desc. page doesn't.
-                                       if( wfFindFile( $link ) )
+                                       if ( wfFindFile( $link ) )
                                                $linkOptions[] = 'known';
                                        break;
                                case NS_MEDIAWIKI:
@@ -1924,9 +2078,9 @@ END;
                # __NEWSECTIONLINK___ changes behaviour here
                # If it is present, the link points to this page, otherwise
                # it points to the talk page
-               if( $this->mTitle->isTalkPage() ) {
+               if ( $this->mTitle->isTalkPage() ) {
                        $title = $this->mTitle;
-               } elseif( $wgOut->showNewSectionLink() ) {
+               } elseif ( $wgOut->showNewSectionLink() ) {
                        $title = $this->mTitle;
                } else {
                        $title = $this->mTitle->getTalkPage();
@@ -1944,10 +2098,52 @@ END;
                );
        }
 
+       function getUploadLink() {
+               global $wgUploadNavigationUrl;
+
+               if ( $wgUploadNavigationUrl ) {
+                       # Using an empty class attribute to avoid automatic setting of "external" class
+                       return $this->makeExternalLink( $wgUploadNavigationUrl, wfMsgHtml( 'upload' ), false, null, array( 'class' => '' ) );
+               } else {
+                       return $this->link(
+                               SpecialPage::getTitleFor( 'Upload' ),
+                               wfMsgHtml( 'upload' ),
+                               array(),
+                               array(),
+                               array( 'known', 'noclasses' )
+                       );
+               }
+       }
+
+       /**
+        * Return a fully resolved style path url to images or styles stored in the common folder.
+        * This method returns a url resolved using the configured skin style path
+        * and includes the style version inside of the url.
+        * @param $name String: The name or path of a skin resource file
+        * @return String The fully resolved style path url including styleversion
+        */
+       function getCommonStylePath( $name ) {
+               global $wgStylePath, $wgStyleVersion;
+               return "$wgStylePath/common/$name?$wgStyleVersion";
+       }
+
+       /**
+        * Return a fully resolved style path url to images or styles stored in the curent skins's folder.
+        * This method returns a url resolved using the configured skin style path
+        * and includes the style version inside of the url.
+        * @param $name String: The name or path of a skin resource file
+        * @return String The fully resolved style path url including styleversion
+        */
+       function getSkinStylePath( $name ) {
+               global $wgStylePath, $wgStyleVersion;
+               return "$wgStylePath/{$this->stylename}/$name?$wgStyleVersion";
+       }
+
        /* these are used extensively in SkinTemplate, but also some other places */
        static function makeMainPageUrl( $urlaction = '' ) {
                $title = Title::newMainPage();
                self::checkTitle( $title, '' );
+
                return $title->getLocalURL( $urlaction );
        }
 
@@ -1970,11 +2166,14 @@ END;
        static function makeUrl( $name, $urlaction = '' ) {
                $title = Title::newFromText( $name );
                self::checkTitle( $title, $name );
+
                return $title->getLocalURL( $urlaction );
        }
 
-       # If url string starts with http, consider as external URL, else
-       # internal
+       /**
+        * If url string starts with http, consider as external URL, else
+        * internal
+        */
        static function makeInternalOrExternalUrl( $name ) {
                if ( preg_match( '/^(?:' . wfUrlProtocols() . ')/', $name ) ) {
                        return $name;
@@ -1987,6 +2186,7 @@ END;
        static function makeNSUrl( $name, $urlaction = '', $namespace = NS_MAIN ) {
                $title = Title::makeTitleSafe( $namespace, $name );
                self::checkTitle( $title, $name );
+
                return $title->getLocalURL( $urlaction );
        }
 
@@ -1994,9 +2194,10 @@ END;
        static function makeUrlDetails( $name, $urlaction = '' ) {
                $title = Title::newFromText( $name );
                self::checkTitle( $title, $name );
+
                return array(
                        'href' => $title->getLocalURL( $urlaction ),
-                       'exists' => $title->getArticleID() != 0 ? true : false
+                       'exists' => $title->getArticleID() != 0,
                );
        }
 
@@ -2006,6 +2207,7 @@ END;
        static function makeKnownUrlDetails( $name, $urlaction = '' ) {
                $title = Title::newFromText( $name );
                self::checkTitle( $title, $name );
+
                return array(
                        'href' => $title->getLocalURL( $urlaction ),
                        'exists' => true
@@ -2014,9 +2216,9 @@ END;
 
        # make sure we have some title to operate on
        static function checkTitle( &$title, $name ) {
-               if( !is_object( $title ) ) {
+               if ( !is_object( $title ) ) {
                        $title = Title::newFromText( $name );
-                       if( !is_object( $title ) ) {
+                       if ( !is_object( $title ) ) {
                                $title = Title::newFromText( '--error: link target missing--' );
                        }
                }
@@ -2043,31 +2245,77 @@ END;
                }
 
                $bar = array();
-               $lines = explode( "\n", wfMsgForContent( 'sidebar' ) );
+               $this->addToSidebar( $bar, 'sidebar' );
+
+               wfRunHooks( 'SkinBuildSidebar', array( $this, &$bar ) );
+               if ( $wgEnableSidebarCache ) {
+                       $parserMemc->set( $key, $bar, $wgSidebarCacheExpiry );
+               }
+
+               wfProfileOut( __METHOD__ );
+               return $bar;
+       }
+       /**
+        * Add content from a sidebar system message
+        * Currently only used for MediaWiki:Sidebar (but may be used by Extensions)
+        *
+        * This is just a wrapper around addToSidebarPlain() for backwards compatibility
+        *
+        * @param &$bar array
+        * @param $message String
+        */
+       function addToSidebar( &$bar, $message ) {
+               $this->addToSidebarPlain( $bar, wfMsgForContent( $message ) );
+       }
+
+       /**
+        * Add content from plain text
+        * @since 1.17
+        * @param &$bar array
+        * @param $text string
+        */
+       function addToSidebarPlain( &$bar, $text ) {
+               $lines = explode( "\n", $text );
+               $wikiBar = array(); # We need to handle the wikitext on a different variable, to avoid trying to do an array operation on text, which would be a fatal error.
+
                $heading = '';
-               foreach( $lines as $line ) {
-                       if( strpos( $line, '*' ) !== 0 )
+
+               foreach ( $lines as $line ) {
+                       if ( strpos( $line, '*' ) !== 0 ) {
                                continue;
-                       if( strpos( $line, '**') !== 0 ) {
+                       }
+
+                       if ( strpos( $line, '**' ) !== 0 ) {
                                $heading = trim( $line, '* ' );
-                               if( !array_key_exists( $heading, $bar ) ) $bar[$heading] = array();
+                               if ( !array_key_exists( $heading, $bar ) ) {
+                                       $bar[$heading] = array();
+                               }
                        } else {
-                               if( strpos( $line, '|' ) !== false ) { // sanity check
-                                       $line = array_map( 'trim', explode( '|', trim( $line, '* ' ), 2 ) );
+                               $line = trim( $line, '* ' );
+
+                               if ( strpos( $line, '|' ) !== false ) { // sanity check
+                                       $line = array_map( 'trim', explode( '|', $line, 2 ) );
                                        $link = wfMsgForContent( $line[0] );
-                                       if( $link == '-' )
+
+                                       if ( $link == '-' ) {
                                                continue;
+                                       }
 
                                        $text = wfMsgExt( $line[1], 'parsemag' );
-                                       if( wfEmptyMsg( $line[1], $text ) )
+
+                                       if ( wfEmptyMsg( $line[1], $text ) ) {
                                                $text = $line[1];
-                                       if( wfEmptyMsg( $line[0], $link ) )
+                                       }
+
+                                       if ( wfEmptyMsg( $line[0], $link ) ) {
                                                $link = $line[0];
+                                       }
 
                                        if ( preg_match( '/^(?:' . wfUrlProtocols() . ')/', $link ) ) {
                                                $href = $link;
                                        } else {
                                                $title = Title::newFromText( $link );
+
                                                if ( $title ) {
                                                        $title = $title->fixSpecialName();
                                                        $href = $title->getLocalURL();
@@ -2082,12 +2330,25 @@ END;
                                                'id' => 'n-' . strtr( $line[1], ' ', '-' ),
                                                'active' => false
                                        );
-                               } else { continue; }
+                               } else if ( ( substr( $line, 0, 2 ) == '{{' ) && ( substr( $line, -2 ) == '}}' ) ) {
+                                       global $wgParser, $wgTitle;
+
+                                       $line = substr( $line, 2, strlen( $line ) - 4 );
+
+                                       $options = new ParserOptions();
+                                       $options->setEditSection( false );
+                                       $options->setInterfaceMessage( true );
+                                       $wikiBar[$heading] = $wgParser->parse( wfMsgForContentNoTrans( $line ) , $wgTitle, $options )->getText();
+                               } else {
+                                       continue;
+                               }
                        }
                }
-               wfRunHooks( 'SkinBuildSidebar', array( $this, &$bar ) );
-               if ( $wgEnableSidebarCache ) $parserMemc->set( $key, $bar, $wgSidebarCacheExpiry );
-               wfProfileOut( __METHOD__ );
+
+               if ( count( $wikiBar ) > 0 ) {
+                       $bar = array_merge( $bar, $wikiBar );
+               }
+
                return $bar;
        }
 
@@ -2102,4 +2363,62 @@ END;
        public function commonPrintStylesheet() {
                return true;
        }
+
+       /**
+        * Gets new talk page messages for the current user.
+        * @return MediaWiki message or if no new talk page messages, nothing
+        */
+       function getNewtalks() {
+               global $wgUser, $wgOut;
+
+               $newtalks = $wgUser->getNewMessageLinks();
+               $ntl = '';
+
+               if ( count( $newtalks ) == 1 && $newtalks[0]['wiki'] === wfWikiID() ) {
+                       $userTitle = $this->mUser->getUserPage();
+                       $userTalkTitle = $userTitle->getTalkPage();
+
+                       if ( !$userTalkTitle->equals( $this->mTitle ) ) {
+                               $newMessagesLink = $this->link(
+                                       $userTalkTitle,
+                                       wfMsgHtml( 'newmessageslink' ),
+                                       array(),
+                                       array( 'redirect' => 'no' ),
+                                       array( 'known', 'noclasses' )
+                               );
+
+                               $newMessagesDiffLink = $this->link(
+                                       $userTalkTitle,
+                                       wfMsgHtml( 'newmessagesdifflink' ),
+                                       array(),
+                                       array( 'diff' => 'cur' ),
+                                       array( 'known', 'noclasses' )
+                               );
+
+                               $ntl = wfMsg(
+                                       'youhavenewmessages',
+                                       $newMessagesLink,
+                                       $newMessagesDiffLink
+                               );
+                               # Disable Squid cache
+                               $wgOut->setSquidMaxage( 0 );
+                       }
+               } elseif ( count( $newtalks ) ) {
+                       // _>" " for BC <= 1.16
+                       $sep = str_replace( '_', ' ', wfMsgHtml( 'newtalkseparator' ) );
+                       $msgs = array();
+
+                       foreach ( $newtalks as $newtalk ) {
+                               $msgs[] = Xml::element(
+                                       'a',
+                                       array( 'href' => $newtalk['link'] ), $newtalk['wiki']
+                               );
+                       }
+                       $parts = implode( $sep, $msgs );
+                       $ntl = wfMsgHtml( 'youhavenewmessagesmulti', $parts );
+                       $wgOut->setSquidMaxage( 0 );
+               }
+
+               return $ntl;
+       }
 }