1 files changed, 247 insertions, 0 deletions
diff --git a/www/wiki/extensions/SemanticMediaWiki/src/Page/Page.php b/www/wiki/extensions/SemanticMediaWiki/src/Page/Page.php
new file mode 100644
index 00000000..5e682193
--- /dev/null
+++ b/www/wiki/extensions/SemanticMediaWiki/src/Page/Page.php
@@ -0,0 +1,247 @@
+<?php
+
+namespace SMW\Page;
+
+use Article;
+use SMW\DIWikiPage;
+use SMW\Options;
+use SMWOutputs as Outputs;
+
+/**
+ * Abstract subclass of MediaWiki's Article that handles the common tasks of
+ * article pages for Concept and Property pages. This is mainly parameter
+ * handling and some very basic output control.
+ *
+ * @license GNU GPL v2+
+ * @since 3.0
+ *
+ * @author Nikolas Iwan
+ * @author Markus Krötzsch
+ * @author Jeroen De Dauw
+ */
+abstract class Page extends Article {
+
+	/**
+	 * Limit for results per page.
+	 *
+	 * @var integer
+	 */
+	protected $limit;
+
+	/**
+	 * Start string: print $limit results from here.
+	 *
+	 * @var string
+	 */
+	protected $from;
+
+	/**
+	 * End string: print $limit results strictly before this article.
+	 *
+	 * @var string
+	 */
+	protected $until;
+
+	/**
+	 * Cache for the current skin, obtained from $wgUser.
+	 *
+	 * @var Skin
+	 */
+	protected $skin;
+
+	/**
+	 * @var Options
+	 */
+	private $options;
+
+	/**
+	 * Overwrite Article::view to add additional HTML to the output.
+	 *
+	 * @see Article::view
+	 */
+	public function view() {
+
+		$outputPage = $this->getContext()->getOutput();
+		$outputPage->addModuleStyles( 'ext.smw.page.styles' );
+
+		if ( !$this->getOption( 'smwgSemanticsEnabled' ) ) {
+			$outputPage->setPageTitle( $this->getTitle()->getPrefixedText() );
+			$outputPage->addHTML( wfMessage( 'smw-semantics-not-enabled' )->text() );
+			return;
+		}
+
+		if ( ( $redirectTargetURL = $this->getRedirectTargetURL() ) !== false ) {
+			$outputPage->redirect( $redirectTargetURL );
+		}
+
+		$this->initParameters();
+
+		// Copied from CategoryPage
+		$user = $this->getContext()->getUser();
+		$request = $this->getContext()->getRequest();
+
+		$diff = $request->getVal( 'diff' );
+		$diffOnly = $request->getBool( 'diffonly', $user->getOption( 'diffonly' ) );
+
+		if ( !isset( $diff ) || !$diffOnly ) {
+			// MW 1.25+
+			if ( method_exists( $outputPage, 'setIndicators' ) && ( $indicators = $this->getTopIndicators() ) !== '' ) {
+				$outputPage->setIndicators( $indicators );
+			}
+
+			$outputPage->addHTML( $this->initHtml() );
+			$outputPage->addHTML( $this->beforeView() );
+		}
+
+		if ( $this->isLockedView() === false ) {
+			parent::view();
+		}
+
+		if ( !isset( $diff ) || !$diffOnly ) {
+			$this->showList();
+		}
+
+		$outputPage->addHTML( $this->afterHtml() );
+	}
+
+	/**
+	 * @since 3.0
+	 *
+	 * @param string $key
+	 *
+	 * @return mixed
+	 */
+	public function getOption( $key ) {
+
+		if ( $this->options === null ) {
+			$this->options = new Options();
+		}
+
+		return $this->options->safeGet( $key, false );
+	}
+
+	/**
+	 * @since 3.0
+	 *
+	 * @param string $key
+	 * @param mixed $value
+	 */
+	public function setOption( $key, $value ) {
+
+		if ( $this->options === null ) {
+			$this->options = new Options();
+		}
+
+		return $this->options->set( $key, $value );
+	}
+
+	/**
+	 * @since 3.0
+	 *
+	 * @return string|boolean
+	 */
+	protected function getRedirectTargetURL() {
+		return false;
+	}
+
+	/**
+	 * @since 2.4
+	 *
+	 * @return string
+	 */
+	protected function getTopIndicators() {
+		return '';
+	}
+
+	/**
+	 * @since 3.0
+	 *
+	 * @return string
+	 */
+	protected function initHtml() {
+		return $this->getIntroductoryText();
+	}
+
+	/**
+	 * @since 2.4
+	 *
+	 * @return string
+	 */
+	protected function getIntroductoryText() {
+		return '';
+	}
+
+	/**
+	 * @since 3.0
+	 *
+	 * @return boolean
+	 */
+	protected function isLockedView() {
+		return false;
+	}
+
+	/**
+	 * Main method for adding all additional HTML to the output stream.
+	 */
+	protected function showList() {
+
+		$outputPage = $this->getContext()->getOutput();
+		$request = $this->getContext()->getRequest();
+
+		$this->from = $request->getVal( 'from', '' );
+		$this->until = $request->getVal( 'until', '' );
+
+		$outputPage->addHTML( $this->getHtml() );
+
+		Outputs::commitToOutputPage( $outputPage );
+	}
+
+	/**
+	 * Initialise some parameters that might be changed by subclasses
+	 * (e.g. $limit). Method can be overwritten in this case.
+	 * If the method returns false, nothing will be printed besides
+	 * the original article.
+	 *
+	 * @return true
+	 */
+	protected function initParameters() {
+		$this->limit = 20;
+	}
+
+	/**
+	 * Returns HTML to be displayed before the article text.
+	 *
+	 * @return string
+	 */
+	protected function beforeView() {
+		return '';
+	}
+
+	/**
+	 * Returns HTML to be displayed after the list display.
+	 *
+	 * @return string
+	 */
+	protected function afterHtml() {
+		return '';
+	}
+
+	/**
+	 * Returns the HTML which is added to $wgOut after the article text.
+	 *
+	 * @return string
+	 */
+	protected abstract function getHtml();
+
+	/**
+	 * Like Article's getTitle(), but returning a suitable SMWDIWikiPage.
+	 *
+	 * @since 1.6
+	 *
+	 * @return SMWDIWikiPage
+	 */
+	protected function getDataItem() {
+		return DIWikiPage::newFromTitle( $this->getTitle() );
+	}
+
+}