From 2d50e289756cdd5a6bd4a83bda71496b2e7fa9ff Mon Sep 17 00:00:00 2001
From: Florian <florian.schmidt.stargatewissen@gmail.com>
Date: Sat, 25 Jul 2015 17:32:08 +0200
Subject: [PATCH] Allow to enable OOUI via a parser tag extension

This change adds the possibility to enable OOUI out of the parser,
which enabled parser tag functions to easily enable OOUI, if they
need it, for every page view out of the function that handles the
parser tag.

Bug: T106949
Change-Id: If1e139d4f07be98e418e11470794ea42e8a9b2eb
---
 includes/OutputPage.php          | 30 ++++++++++++++++++++++++------
 includes/parser/Parser.php       | 11 +++++++++++
 includes/parser/ParserOutput.php | 18 +++++++++++++++++-
 3 files changed, 52 insertions(+), 7 deletions(-)

diff --git a/includes/OutputPage.php b/includes/OutputPage.php
index a551fe17d5..bbf3993795 100644
--- a/includes/OutputPage.php
+++ b/includes/OutputPage.php
@@ -1817,6 +1817,11 @@ class OutputPage extends ContextSource {
 			}
 		}
 
+		// enable OOUI if requested via ParserOutput
+		if ( $parserOutput->getEnableOOUI() ) {
+			$this->enableOOUI();
+		}
+
 		// Link flags are ignored for now, but may in the future be
 		// used to mark individual language links.
 		$linkFlags = array();
@@ -3946,21 +3951,34 @@ class OutputPage extends ContextSource {
 	}
 
 	/**
-	 * Add ResourceLoader module styles for OOUI and set up the PHP implementation of it for use with
-	 * MediaWiki and this OutputPage instance.
+	 * Helper function to setup the PHP implementation of OOUI to use in this request.
 	 *
-	 * @since 1.25
+	 * @since 1.26
+	 * @param String $skinName The Skin name to determine the correct OOUI theme
+	 * @param String $dir Language direction
 	 */
-	public function enableOOUI() {
+	public static function setupOOUI( $skinName = '', $dir = 'ltr' ) {
 		$themes = ExtensionRegistry::getInstance()->getAttribute( 'SkinOOUIThemes' );
 		// Make keys (skin names) lowercase for case-insensitive matching.
 		$themes = array_change_key_case( $themes, CASE_LOWER );
-		$skinName = strtolower( $this->getSkin()->getSkinName() );
 		$theme = isset( $themes[ $skinName ] ) ? $themes[ $skinName ] : 'MediaWiki';
 		// For example, 'OOUI\MediaWikiTheme'.
 		$themeClass = "OOUI\\{$theme}Theme";
 		OOUI\Theme::setSingleton( new $themeClass() );
-		OOUI\Element::setDefaultDir( $this->getLanguage()->getDir() );
+		OOUI\Element::setDefaultDir( $dir );
+	}
+
+	/**
+	 * Add ResourceLoader module styles for OOUI and set up the PHP implementation of it for use with
+	 * MediaWiki and this OutputPage instance.
+	 *
+	 * @since 1.25
+	 */
+	public function enableOOUI() {
+		self::setupOOUI(
+			strtolower( $this->getSkin()->getSkinName() ),
+			$this->getLanguage()->getDir()
+		);
 		$this->addModuleStyles( array(
 			'oojs-ui.styles',
 			'oojs-ui.styles.icons',
diff --git a/includes/parser/Parser.php b/includes/parser/Parser.php
index 65d8182151..0b6ab6e90a 100644
--- a/includes/parser/Parser.php
+++ b/includes/parser/Parser.php
@@ -6435,4 +6435,15 @@ class Parser {
 			return $this;
 		}
 	}
+
+	/**
+	 * Set's up the PHP implementation of OOUI for use in this request
+	 * and instructs OutputPage to enable OOUI for itself.
+	 *
+	 * @since 1.26
+	 */
+	public function enableOOUI() {
+		OutputPage::setupOOUI();
+		$this->mOutput->setEnableOOUI( true );
+	}
 }
diff --git a/includes/parser/ParserOutput.php b/includes/parser/ParserOutput.php
index 7068bd717e..15321c2186 100644
--- a/includes/parser/ParserOutput.php
+++ b/includes/parser/ParserOutput.php
@@ -49,7 +49,8 @@ class ParserOutput extends CacheTime {
 		$mProperties = array(),       # Name/value pairs to be cached in the DB
 		$mTOCHTML = '',               # HTML of the TOC
 		$mTimestamp,                  # Timestamp of the revision
-		$mTOCEnabled = true;          # Whether TOC should be shown, can't override __NOTOC__
+		$mTOCEnabled = true,          # Whether TOC should be shown, can't override __NOTOC__
+		$mEnableOOUI = false;         # Whether OOUI should be enabled
 	private $mIndexPolicy = '';       # 'index' or 'noindex'?  Any other value will result in no change.
 	private $mAccessedOptions = array(); # List of ParserOptions (stored in the keys)
 	private $mExtensionData = array(); # extra data used by extensions
@@ -232,6 +233,10 @@ class ParserOutput extends CacheTime {
 		return $this->mTOCEnabled;
 	}
 
+	public function getEnableOOUI() {
+		return $this->mEnableOOUI;
+	}
+
 	public function setText( $text ) {
 		return wfSetVar( $this->mText, $text );
 	}
@@ -283,6 +288,17 @@ class ParserOutput extends CacheTime {
 		$this->mIndicators[$id] = $content;
 	}
 
+	/**
+	 * Enables OOUI, if true, in any OutputPage instance this ParserOutput
+	 * object is added to.
+	 *
+	 * @since 1.26
+	 * @param bool $enable If OOUI should be enabled or not
+	 */
+	public function setEnableOOUI( $enable = false ) {
+		$this->mEnableOOUI = $enable;
+	}
+
 	public function addLanguageLink( $t ) {
 		$this->mLanguageLinks[] = $t;
 	}
-- 
2.20.1