1 files changed, 170 insertions, 0 deletions
diff --git a/includes/context/ContextSource.php b/includes/context/ContextSource.php
new file mode 100644
index 00000000..45bd6fff
--- /dev/null
+++ b/includes/context/ContextSource.php
@@ -0,0 +1,170 @@
+<?php
+/**
+ * Request-dependant objects containers.
+ *
+ * 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
+ *
+ * @since 1.18
+ *
+ * @author Happy-melon
+ * @file
+ */
+
+/**
+ * The simplest way of implementing IContextSource is to hold a RequestContext as a
+ * member variable and provide accessors to it.
+ */
+abstract class ContextSource implements IContextSource {
+
+	/**
+	 * @var IContextSource
+	 */
+	private $context;
+
+	/**
+	 * Get the RequestContext object
+	 * @since 1.18
+	 * @return RequestContext
+	 */
+	public function getContext() {
+		if ( $this->context === null ) {
+			$class = get_class( $this );
+			wfDebug( __METHOD__  . " ($class): called and \$context is null. Using RequestContext::getMain() for sanity\n" );
+			$this->context = RequestContext::getMain();
+		}
+		return $this->context;
+	}
+
+	/**
+	 * Set the IContextSource object
+	 *
+	 * @since 1.18
+	 * @param $context IContextSource
+	 */
+	public function setContext( IContextSource $context ) {
+		$this->context = $context;
+	}
+
+	/**
+	 * Get the WebRequest object
+	 *
+	 * @since 1.18
+	 * @return WebRequest
+	 */
+	public function getRequest() {
+		return $this->getContext()->getRequest();
+	}
+
+	/**
+	 * Get the Title object
+	 *
+	 * @since 1.18
+	 * @return Title
+	 */
+	public function getTitle() {
+		return $this->getContext()->getTitle();
+	}
+
+	/**
+	 * Check whether a WikiPage object can be get with getWikiPage().
+	 * Callers should expect that an exception is thrown from getWikiPage()
+	 * if this method returns false.
+	 *
+	 * @since 1.19
+	 * @return bool
+	 */
+	public function canUseWikiPage() {
+		return $this->getContext()->canUseWikiPage();
+	}
+
+	/**
+	 * Get the WikiPage object.
+	 * May throw an exception if there's no Title object set or the Title object
+	 * belongs to a special namespace that doesn't have WikiPage, so use first
+	 * canUseWikiPage() to check whether this method can be called safely.
+	 *
+	 * @since 1.19
+	 * @return WikiPage
+	 */
+	public function getWikiPage() {
+		return $this->getContext()->getWikiPage();
+	}
+
+	/**
+	 * Get the OutputPage object
+	 *
+	 * @since 1.18
+	 * @return OutputPage object
+	 */
+	public function getOutput() {
+		return $this->getContext()->getOutput();
+	}
+
+	/**
+	 * Get the User object
+	 *
+	 * @since 1.18
+	 * @return User
+	 */
+	public function getUser() {
+		return $this->getContext()->getUser();
+	}
+
+	/**
+	 * Get the Language object
+	 *
+	 * @deprecated 1.19 Use getLanguage instead
+	 * @return Language
+	 */
+	public function getLang() {
+		wfDeprecated( __METHOD__, '1.19' );
+		return $this->getLanguage();
+	}
+
+	/**
+	 * Get the Language object
+	 *
+	 * @since 1.19
+	 * @return Language
+	 */
+	public function getLanguage() {
+		return $this->getContext()->getLanguage();
+	}
+
+	/**
+	 * Get the Skin object
+	 *
+	 * @since 1.18
+	 * @return Skin
+	 */
+	public function getSkin() {
+		return $this->getContext()->getSkin();
+	}
+
+	/**
+	 * Get a Message object with context set
+	 * Parameters are the same as wfMessage()
+	 *
+	 * @since 1.18
+	 * @return Message object
+	 */
+	public function msg( /* $args */ ) {
+		$args = func_get_args();
+		return call_user_func_array( array( $this->getContext(), 'msg' ), $args );
+	}
+	
+}
+