- improve responsiveness by flushing template output asap, also set the \Seen flag after message page display

program/include/rcube_template.php

@@ -294,6 +294,10 @@ class rcube_template extends rcube_html_page
             $this->write();
         }
 
+	// set output asap
+	ob_flush();
+	flush();
+        
 	if ($exit) {
             exit;
         }

program/steps/mail/show.inc

@@ -25,10 +25,6 @@ $PRINT_MODE = $RCMAIL->action=='print' ? TRUE : FALSE;
 if ($_GET['_uid']) {
   $MESSAGE = new rcube_message(get_input_value('_uid', RCUBE_INPUT_GET));
 
-  // set message charset as default
-  if (!empty($MESSAGE->headers->charset))
-    $IMAP->set_charset($MESSAGE->headers->charset);
-
   // if message not found (wrong UID)...
   if (empty($MESSAGE->headers)) {
     $OUTPUT->show_message('messageopenerror', 'error');
@@ -65,6 +61,10 @@ if ($_GET['_uid']) {
   else if (empty($CONFIG['devel_mode']))
     send_modified_header($_SESSION['login_time'], $etag, !$MESSAGE->headers->seen);
 
+  // set message charset as default
+  if (!empty($MESSAGE->headers->charset))
+    $IMAP->set_charset($MESSAGE->headers->charset);
+
   $OUTPUT->set_pagetitle($MESSAGE->subject);
   
   // give message uid to the client
@@ -143,11 +143,9 @@ if ($_GET['_uid']) {
       $OUTPUT->set_env('last_uid', $last);
     }
 
-  // mark message as read
+  if (!$MESSAGE->headers->seen)
-  if (!$MESSAGE->headers->seen) {
+    $RCMAIL->plugins->exec_hook('message_read', array('uid' => $MESSAGE->uid,
-    $IMAP->set_flag($MESSAGE->uid, 'SEEN');
+	'mailbox' => $IMAP->mailbox, 'message' => $MESSAGE));
-    $RCMAIL->plugins->exec_hook('message_read', array('uid' => $MESSAGE->uid, 'mailbox' => $IMAP->mailbox, 'message' => $MESSAGE));
-  }
 }
 
 
@@ -223,9 +221,17 @@ $OUTPUT->add_handlers(array(
 
 
 if ($RCMAIL->action=='print' && $OUTPUT->template_exists('printmessage'))
-  $OUTPUT->send('printmessage');
+  $OUTPUT->send('printmessage', false);
 else if ($RCMAIL->action=='preview' && $OUTPUT->template_exists('messagepreview'))
-  $OUTPUT->send('messagepreview');
+  $OUTPUT->send('messagepreview', false);
 else
-  $OUTPUT->send('message');
+  $OUTPUT->send('message', false);
+
+
+// mark message as read
+if ($MESSAGE && $MESSAGE->headers && !$MESSAGE->headers->seen)
+  $IMAP->set_flag($MESSAGE->uid, 'SEEN');
+
+exit;
+
 ?>