--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/plugins/attachment_reminder/attachment_reminder.php	Thu Jan 04 15:50:29 2018 -0500
@@ -0,0 +1,83 @@
+<?php
+/**
+ * Attachment Reminder
+ *
+ * A plugin that reminds a user to attach the files
+ *
+ * @author Thomas Yu - Sian, Liu
+ * @author Aleksander Machniak <machniak@kolabsys.com>
+ *
+ * Copyright (C) 2013 Thomas Yu - Sian, Liu
+ * Copyright (C) 2013, Kolab Systems AG
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>
+ */
+
+class attachment_reminder extends rcube_plugin
+{
+    public $task = 'mail|settings';
+    public $noajax = true;
+
+
+    function init()
+    {
+        $rcmail = rcube::get_instance();
+
+        if ($rcmail->task == 'mail' && $rcmail->action == 'compose') {
+            if ($rcmail->config->get('attachment_reminder')) {
+                $this->include_script('attachment_reminder.js');
+                $this->add_texts('localization/', array('keywords', 'forgotattachment'));
+                $rcmail->output->add_label('addattachment', 'send');
+            }
+        }
+
+        if ($rcmail->task == 'settings') {
+            $dont_override = $rcmail->config->get('dont_override', array());
+
+            if (!in_array('attachment_reminder', $dont_override)) {
+                $this->add_hook('preferences_list', array($this, 'prefs_list'));
+                $this->add_hook('preferences_save', array($this, 'prefs_save'));
+            }
+        }
+    }
+
+    function prefs_list($args)
+    {
+        if ($args['section'] == 'compose') {
+            $this->add_texts('localization/');
+            $reminder = rcube::get_instance()->config->get('attachment_reminder');
+            $field_id = 'rcmfd_attachment_reminder';
+            $checkbox = new html_checkbox(array('name' => '_attachment_reminder', 'id' => $field_id, 'value' => 1));
+
+            $args['blocks']['main']['options']['attachment_reminder'] = array(
+                'title' => html::label($field_id, rcube::Q($this->gettext('reminderoption'))),
+                'content' => $checkbox->show($reminder ? 1 : 0),
+            );
+        }
+
+        return $args;
+    }
+
+    function prefs_save($args)
+    {
+        if ($args['section'] == 'compose') {
+            $dont_override = rcube::get_instance()->config->get('dont_override', array());
+            if (!in_array('attachment_reminder', $dont_override)) {
+                $args['prefs']['attachment_reminder'] = !empty($_POST['_attachment_reminder']);
+            }
+        }
+        return $args;
+    }
+
+}