1 files changed, 77 insertions, 0 deletions
diff --git a/www/wiki/extensions/SemanticMediaWiki/src/MediaWiki/RedirectTargetFinder.php b/www/wiki/extensions/SemanticMediaWiki/src/MediaWiki/RedirectTargetFinder.php
new file mode 100644
index 00000000..38b61896
--- /dev/null
+++ b/www/wiki/extensions/SemanticMediaWiki/src/MediaWiki/RedirectTargetFinder.php
@@ -0,0 +1,77 @@
+<?php
+
+namespace SMW\MediaWiki;
+
+use ContentHandler;
+use Title;
+
+/**
+ * @license GNU GPL v2+
+ * @since 2.0
+ *
+ * @author mwjames
+ */
+class RedirectTargetFinder {
+
+	/**
+	 * @var Title|null
+	 */
+	private $redirectTarget = null;
+
+	/**
+	 * @since 2.0
+	 *
+	 * @param string $text
+	 *
+	 * @return Title|null
+	 */
+	public function findRedirectTargetFromText( $text ) {
+
+		if ( $this->redirectTarget === null ) {
+			$this->redirectTarget = $this->findFromText( $text );
+		}
+
+		return $this;
+	}
+
+	/**
+	 * @since 2.1
+	 *
+	 * @param Title|null
+	 */
+	public function setRedirectTarget( Title $redirectTarget = null ) {
+		$this->redirectTarget = $redirectTarget;
+	}
+
+	/**
+	 * @since 2.0
+	 *
+	 * @return Title|null
+	 */
+	public function getRedirectTarget() {
+		return $this->redirectTarget;
+	}
+
+	/**
+	 * @since 2.0
+	 *
+	 * @return boolean
+	 */
+	public function hasRedirectTarget() {
+		return $this->redirectTarget instanceof Title;
+	}
+
+	private function findFromText( $text ) {
+
+		if ( $this->hasContentHandler() ) {
+			return ContentHandler::makeContent( $text, null, CONTENT_MODEL_WIKITEXT )->getRedirectTarget();
+		}
+
+		return Title::newFromRedirect( $text );
+	}
+
+	protected function hasContentHandler() {
+		return defined( 'CONTENT_MODEL_WIKITEXT' );
+	}
+
+}