1 files changed, 130 insertions, 0 deletions
diff --git a/includes/specialpage/WantedQueryPage.php b/includes/specialpage/WantedQueryPage.php
new file mode 100644
index 00000000..be2f1e8d
--- /dev/null
+++ b/includes/specialpage/WantedQueryPage.php
@@ -0,0 +1,130 @@
+<?php
+/**
+ * Class definition for a wanted query page.
+ *
+ * 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
+ * @ingroup SpecialPage
+ */
+
+/**
+ * Class definition for a wanted query page like
+ * WantedPages, WantedTemplates, etc
+ * @ingroup SpecialPage
+ */
+abstract class WantedQueryPage extends QueryPage {
+	function isExpensive() {
+		return true;
+	}
+
+	function isSyndicated() {
+		return false;
+	}
+
+	/**
+	 * Cache page existence for performance
+	 * @param DatabaseBase $db
+	 * @param ResultWrapper $res
+	 */
+	function preprocessResults( $db, $res ) {
+		if ( !$res->numRows() ) {
+			return;
+		}
+
+		$batch = new LinkBatch;
+		foreach ( $res as $row ) {
+			$batch->add( $row->namespace, $row->title );
+		}
+		$batch->execute();
+
+		// Back to start for display
+		$res->seek( 0 );
+	}
+
+	/**
+	 * Should formatResult() always check page existence, even if
+	 * the results are fresh?  This is a (hopefully temporary)
+	 * kluge for Special:WantedFiles, which may contain false
+	 * positives for files that exist e.g. in a shared repo (bug
+	 * 6220).
+	 * @return bool
+	 */
+	function forceExistenceCheck() {
+		return false;
+	}
+
+	/**
+	 * Format an individual result
+	 *
+	 * @param Skin $skin Skin to use for UI elements
+	 * @param object $result Result row
+	 * @return string
+	 */
+	public function formatResult( $skin, $result ) {
+		$title = Title::makeTitleSafe( $result->namespace, $result->title );
+		if ( $title instanceof Title ) {
+			if ( $this->isCached() || $this->forceExistenceCheck() ) {
+				$pageLink = $this->existenceCheck( $title )
+					? '<del>' . Linker::link( $title ) . '</del>'
+					: Linker::link( $title );
+			} else {
+				$pageLink = Linker::link(
+					$title,
+					null,
+					array(),
+					array(),
+					array( 'broken' )
+				);
+			}
+			return $this->getLanguage()->specialList( $pageLink, $this->makeWlhLink( $title, $result ) );
+		} else {
+			return $this->msg( 'wantedpages-badtitle', $result->title )->escaped();
+		}
+	}
+
+	/**
+	 * Does the Title currently exists
+	 *
+	 * This method allows a subclass to override this check
+	 * (For example, wantedfiles, would want to check if the file exists
+	 * not just that a page in the file namespace exists).
+	 *
+	 * This will only control if the link is crossed out. Whether or not the link
+	 * is blue vs red is controlled by if the title exists.
+	 *
+	 * @note This will only be run if the page is cached (ie $wgMiserMode = true)
+	 *   unless forceExistenceCheck() is true.
+	 * @since 1.24
+	 * @return boolean
+	 */
+	protected function existenceCheck( Title $title ) {
+		return $title->isKnown();
+	}
+
+	/**
+	 * Make a "what links here" link for a given title
+	 *
+	 * @param Title $title Title to make the link for
+	 * @param object $result Result row
+	 * @return string
+	 */
+	private function makeWlhLink( $title, $result ) {
+		$wlh = SpecialPage::getTitleFor( 'Whatlinkshere', $title->getPrefixedText() );
+		$label = $this->msg( 'nlinks' )->numParams( $result->value )->escaped();
+		return Linker::link( $wlh, $label );
+	}
+}