Index: modules/translation/translation.module
===================================================================
RCS file: /cvs/drupal/drupal/modules/translation/translation.module,v
retrieving revision 1.22
diff -u -r1.22 translation.module
--- modules/translation/translation.module	9 Jan 2008 11:51:54 -0000	1.22
+++ modules/translation/translation.module	12 Jan 2008 07:05:21 -0000
@@ -226,6 +226,13 @@
         if (!empty($node->translation['retranslate'])) {
           // This is the source node, asking to mark all translations outdated.
           db_query("UPDATE {node} SET translate = 1 WHERE tnid = %d AND nid != %d", $node->tnid, $node->nid);
+          
+          // Let every module know the nodes that require a retranslation.
+          $result = db_query('SELECT nid FROM {node} WHERE tnid = %d AND nid != %d', $node->tnid, $node->nid);
+          while ($translation = db_fetch_object($result)) {
+            $translation = node_load($translation->nid);
+            node_invoke_nodeapi($translation, 'retranslate');
+          }
         }
       }
       break;
@@ -338,3 +345,29 @@
   }
 }
 
+/**
+ * Implementation of hook_hook_info().
+ */
+function translation_hook_info() {
+  return array(
+    'node' => array(
+      'nodeapi' => array(
+         'retranslate' => array(
+           'runs when' => t('After flagging the translations of a source node as outdated'),
+        ),
+      )
+    )           
+  );
+}
+
+/**
+ * Implementation of hook_action_info_alter().
+ */
+function translation_action_info_alter(&$actions) {
+  foreach ($actions as $key => $action) {
+    if (isset($action['hooks']['nodeapi']) && !in_array('retranslate', $action['hooks']['nodeapi'])) {
+      $actions[$key]['hooks']['nodeapi'][] = 'retranslate';
+    }
+  }
+}
+
Index: modules/trigger/trigger.module
===================================================================
RCS file: /cvs/drupal/drupal/modules/trigger/trigger.module,v
retrieving revision 1.12
diff -u -r1.12 trigger.module
--- modules/trigger/trigger.module	31 Dec 2007 14:51:04 -0000	1.12
+++ modules/trigger/trigger.module	12 Jan 2008 07:05:23 -0000
@@ -212,7 +212,7 @@
   // Prevent recursion by tracking which operations have already been called.
   static $recursion;
   // Support a subset of operations.
-  if (!in_array($op, array('view', 'update', 'presave', 'insert', 'delete')) || isset($recursion[$op])) {
+  if (!in_array($op, array('view', 'update', 'presave', 'insert', 'delete', 'retranslate')) || isset($recursion[$op])) {
     return;
   }
   $recursion[$op] = TRUE;