From 9db190c7e736ec8d063187d4241b59feaf7dc2d1 Mon Sep 17 00:00:00 2001
From: Pierre Schmitz <pierre@archlinux.de>
Date: Wed, 22 Jun 2011 11:28:20 +0200
Subject: update to MediaWiki 1.17.0

---
 .../resourceloader/ResourceLoaderWikiModule.php    | 171 +++++++++++++++++++++
 1 file changed, 171 insertions(+)
 create mode 100644 includes/resourceloader/ResourceLoaderWikiModule.php

(limited to 'includes/resourceloader/ResourceLoaderWikiModule.php')

diff --git a/includes/resourceloader/ResourceLoaderWikiModule.php b/includes/resourceloader/ResourceLoaderWikiModule.php
new file mode 100644
index 00000000..93e66eb0
--- /dev/null
+++ b/includes/resourceloader/ResourceLoaderWikiModule.php
@@ -0,0 +1,171 @@
+<?php
+/**
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+ * http://www.gnu.org/copyleft/gpl.html
+ *
+ * @file
+ * @author Trevor Parscal
+ * @author Roan Kattouw
+ */
+
+defined( 'MEDIAWIKI' ) || die( 1 );
+
+/**
+ * Abstraction for resource loader modules which pull from wiki pages
+ * 
+ * This can only be used for wiki pages in the MediaWiki and User namespaces, 
+ * because of its dependence on the functionality of 
+ * Title::isValidCssJsSubpage.
+ */
+abstract class ResourceLoaderWikiModule extends ResourceLoaderModule {
+	
+	/* Protected Members */
+	
+	// In-object cache for title mtimes
+	protected $titleMtimes = array();
+	
+	/* Abstract Protected Methods */
+	
+	abstract protected function getPages( ResourceLoaderContext $context );
+	
+	/* Protected Methods */
+	
+	protected function getContent( $title ) {
+		if ( $title->getNamespace() === NS_MEDIAWIKI ) {
+			$dbkey = $title->getDBkey();
+			return wfEmptyMsg( $dbkey ) ? '' : wfMsgExt( $dbkey, 'content' );
+		}
+		if ( !$title->isCssJsSubpage() ) {
+			return null;
+		}
+		$revision = Revision::newFromTitle( $title );
+		if ( !$revision ) {
+			return null;
+		}
+		return $revision->getRawText();
+	}
+	
+	/* Methods */
+
+	public function getScript( ResourceLoaderContext $context ) {
+		$scripts = '';
+		foreach ( $this->getPages( $context ) as $titleText => $options ) {
+			if ( $options['type'] !== 'script' ) {
+				continue;
+			}
+			$title = Title::newFromText( $titleText );
+			if ( !$title ) {
+				continue;
+			}
+			$script = $this->getContent( $title );
+			if ( strval( $script ) !== '' ) {
+				if ( strpos( $titleText, '*/' ) === false ) {
+					$scripts .=  "/* $titleText */\n";
+				}
+				$scripts .= $script . "\n";
+			}
+		}
+		return $scripts;
+	}
+
+	public function getStyles( ResourceLoaderContext $context ) {
+		global $wgScriptPath;
+		
+		$styles = array();
+		foreach ( $this->getPages( $context ) as $titleText => $options ) {
+			if ( $options['type'] !== 'style' ) {
+				continue;
+			}
+			$title = Title::newFromText( $titleText );
+			if ( !$title ) {
+				continue;
+			}			
+			$media = isset( $options['media'] ) ? $options['media'] : 'all';
+			$style = $this->getContent( $title );
+			if ( strval( $style ) === '' ) {
+				continue;
+			}
+			if ( $this->getFlip( $context ) ) {
+				$style = CSSJanus::transform( $style, true, false );
+			}
+			$style = CSSMin::remap( $style, false, $wgScriptPath, true );
+			if ( !isset( $styles[$media] ) ) {
+				$styles[$media] = '';
+			}
+			if ( strpos( $titleText, '*/' ) === false ) {
+				$styles[$media] .=  "/* $titleText */\n";
+			}
+			$styles[$media] .= $style . "\n";
+		}
+		return $styles;
+	}
+
+	public function getModifiedTime( ResourceLoaderContext $context ) {
+		$modifiedTime = 1; // wfTimestamp() interprets 0 as "now"
+		$mtimes = $this->getTitleMtimes( $context );
+		if ( count( $mtimes ) ) {
+			$modifiedTime = max( $modifiedTime, max( $mtimes ) );
+		}
+		return $modifiedTime;
+	}
+	
+	public function isKnownEmpty( ResourceLoaderContext $context ) {
+		return count( $this->getTitleMtimes( $context ) ) == 0;
+	}
+	
+	/**
+	 * @param $context ResourceLoaderContext
+	 * @return bool
+	 */
+	public function getFlip( $context ) {
+		global $wgContLang;
+
+		return $wgContLang->getDir() !== $context->getDirection();
+	}
+	
+	/**
+	 * Get the modification times of all titles that would be loaded for
+	 * a given context.
+	 * @param $context ResourceLoaderContext: Context object
+	 * @return array( prefixed DB key => UNIX timestamp ), nonexistent titles are dropped
+	 */
+	protected function getTitleMtimes( ResourceLoaderContext $context ) {
+		$hash = $context->getHash();
+		if ( isset( $this->titleMtimes[$hash] ) ) {
+			return $this->titleMtimes[$hash];
+		}
+		
+		$this->titleMtimes[$hash] = array();
+		$batch = new LinkBatch;
+		foreach ( $this->getPages( $context ) as $titleText => $options ) {
+			$batch->addObj( Title::newFromText( $titleText ) );
+		}
+		
+		if ( !$batch->isEmpty() ) {
+			$dbr = wfGetDB( DB_SLAVE );
+			$res = $dbr->select( 'page',
+				array( 'page_namespace', 'page_title', 'page_touched' ),
+				$batch->constructSet( 'page', $dbr ),
+				__METHOD__
+			);
+			foreach ( $res as $row ) {
+				$title = Title::makeTitle( $row->page_namespace, $row->page_title );
+				$this->titleMtimes[$hash][$title->getPrefixedDBkey()] =
+					wfTimestamp( TS_UNIX, $row->page_touched );
+			}
+		}
+		return $this->titleMtimes[$hash];
+	}
+}
-- 
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