2 files changed, 10 insertions, 0 deletions
diff --git a/program/include/rcube_imap.php b/program/include/rcube_imap.php
index 81ad1859a..2be225636 100644
--- a/program/include/rcube_imap.php
+++ b/program/include/rcube_imap.php
@@ -212,6 +212,8 @@ class rcube_imap extends rcube_storage
 
     /**
      * Check connection state, connect if not connected.
+     *
+     * @return bool Connection state.
      */
     public function check_connection()
     {
diff --git a/program/include/rcube_storage.php b/program/include/rcube_storage.php
index cef773c82..8123e9cee 100644
--- a/program/include/rcube_storage.php
+++ b/program/include/rcube_storage.php
@@ -109,6 +109,14 @@ abstract class rcube_storage
 
 
     /**
+     * Check connection state, connect if not connected.
+     *
+     * @return bool Connection state.
+     */
+    abstract function check_connection();
+
+
+    /**
      * Returns code of last error
      *
      * @return int Error code