mediawiki.png|http://www.mediawiki.org/|MediaWiki * Adapted from http://leuksman.com/extensions/ImageLink.phps * * Further reading: * http://meta.wikimedia.org/wiki/Write_your_own_MediaWiki_extension */ $wgExtensionFunctions[] = "wfSetupImageLink"; function wfSetupImageLink() { global $wgParser; $wgParser->setHook( 'imagelink', 'imageLinkHandler' ); } function imageLinkHandler( $data ) { $bits = array_map( 'trim', explode( '|', $data ) ); $nbits = count( $bits ); if( $nbits < 1 ) return "(invalid image link)"; else $imageName = $bits[0]; if( $nbits < 2 ) $linkTarget = 'Image:' . $imageName; else $linkTarget = $bits[1]; if( $nbits < 3 ) $altText = $linkTarget; else $altText = $bits[2]; return formatImageLink( $imageName, $linkTarget, $altText ); } function formatImageLink( $imageName, $linkTarget, $altText ) { $imageTitle = Title::makeTitleSafe( NS_IMAGE, $imageName ); if( is_null( $imageTitle ) ) return "(invalid image name)"; $image = Image::newFromTitle( $imageTitle ); if( is_null( $image ) ) return "(invalid image)"; if( preg_match( '/^(' . URL_PROTOCOLS . ')/', $linkTarget ) ) { $linkUrl = $linkTarget; } else { $linkTitle = Title::newFromText( $linkTarget ); if( is_null( $linkTitle ) ) return "(invalid link target)"; $linkUrl = $linkTitle->getLocalUrl(); } $imageUrl = $image->getViewURL(); return ''; } ?>