Merge "Introduce ContentHandler::exportTransform()"

[lhc/web/wiklou.git] / includes / content / ContentHandler.php

diff --git a/includes/content/ContentHandler.php b/includes/content/ContentHandler.php
index 212dfd1..b5b4d13 100644 (file)
--- a/includes/content/ContentHandler.php
+++ b/includes/content/ContentHandler.php
@@ -430,6 +430,20 @@ abstract class ContentHandler {
         */
        abstract public function serializeContent( Content $content, $format = null );
 
+       /**
+        * Applies transformations on export (returns the blob unchanged per default).
+        * Subclasses may override this to perform transformations such as conversion
+        * of legacy formats or filtering of internal meta-data.
+        *
+        * @param string $blob The blob to be exported
+        * @param string|null $format The blob's serialization format
+        *
+        * @return string
+        */
+       public function exportTransform( $blob, $format = null ) {
+               return $blob;
+       }
+
        /**
         * Unserializes a Content object of the type supported by this ContentHandler.
         *