+ # We need to get what handler the file uses, to figure out parameters.
+ # Note, a hook can overide the file name, and chose an entirely different
+ # file (which potentially could be of a different type and have different handler).
+ $options = array();
+ $descQuery = false;
+ wfRunHooks( 'BeforeParserFetchFileAndTitle',
+ array( $this, $title, &$options, &$descQuery ) );
+ # Don't register it now, as ImageGallery does that later.
+ $file = $this->fetchFileNoRegister( $title, $options );
+ $handler = $file ? $file->getHandler() : false;
+
+ wfProfileIn( __METHOD__ . '-getMagicWord' );
+ $paramMap = array(
+ 'img_alt' => 'gallery-internal-alt',
+ 'img_link' => 'gallery-internal-link',
+ );
+ if ( $handler ) {
+ $paramMap = $paramMap + $handler->getParamMap();
+ // We don't want people to specify per-image widths.
+ // Additionally the width parameter would need special casing anyhow.
+ unset( $paramMap['img_width'] );
+ }
+
+ $mwArray = new MagicWordArray( array_keys( $paramMap ) );
+ wfProfileOut( __METHOD__ . '-getMagicWord' );
+