function folder_form($args)
    {
        $mbox_imap = $args['options']['name'];
        $myrights  = $args['options']['rights'];

        // Edited folder name (empty in create-folder mode)
        if (!strlen($mbox_imap)) {
            return $args;
        }
/*
        // Do nothing on protected folders (?)
        if ($args['options']['protected']) {
            return $args;
        }
*/
        // Get MYRIGHTS
        if (empty($myrights)) {
            return $args;
        }

        // Load localization and include scripts
        $this->load_config();
        $this->specials = $this->rc->config->get('acl_specials', $this->specials);
        $this->add_texts('localization/', array('deleteconfirm', 'norights',
            'nouser', 'deleting', 'saving', 'newuser', 'editperms'));
        $this->rc->output->add_label('save', 'cancel');
        $this->include_script('acl.js');
        $this->rc->output->include_script('list.js');
        $this->include_stylesheet($this->local_skin_path().'/acl.css');

        // add Info fieldset if it doesn't exist
        if (!isset($args['form']['props']['fieldsets']['info']))
            $args['form']['props']['fieldsets']['info'] = array(
                'name'  => $this->rc->gettext('info'),
                'content' => array());

        // Display folder rights to 'Info' fieldset
        $args['form']['props']['fieldsets']['info']['content']['myrights'] = array(
            'label' => rcube::Q($this->gettext('myrights')),
            'value' => $this->acl2text($myrights)
        );

        // Return if not folder admin
        if (!in_array('a', $myrights)) {
            return $args;
        }

        // The 'Sharing' tab
        $this->mbox = $mbox_imap;
        $this->rc->output->set_env('acl_users_source', (bool) $this->rc->config->get('acl_users_source'));
        $this->rc->output->set_env('mailbox', $mbox_imap);
        $this->rc->output->add_handlers(array(
            'acltable'  => array($this, 'templ_table'),
            'acluser'   => array($this, 'templ_user'),
            'aclrights' => array($this, 'templ_rights'),
        ));

        $this->rc->output->set_env('autocomplete_max', (int)$this->rc->config->get('autocomplete_max', 15));
        $this->rc->output->set_env('autocomplete_min_length', $this->rc->config->get('autocomplete_min_length'));
        $this->rc->output->add_label('autocompletechars', 'autocompletemore');

        $args['form']['sharing'] = array(
            'name'    => rcube::Q($this->gettext('sharing')),
            'content' => $this->rc->output->parse('acl.table', false, false),
        );

        return $args;
    }