first elements of settings form

        return 'This plugin transform XML articles to HTML';

    }

    /**

     * @param $request

     * @param $verb

     * @return mixed

     */

    public function getActions($request, $verb) {

        $router = $request->getRouter();

        import('lib.pkp.classes.linkAction.request.AjaxModal');

        return array_merge(

            $this->getEnabled()?array(

                new LinkAction(

                    'settings',

                    new AjaxModal(

                        $router->url($request, null, null, 'manage', null, array('verb' => 'settings', 'plugin' => $this->getName(), 'category' => 'generic')),

                        $this->getDisplayName()

                    ),

                    __('manager.plugins.settings'),

                    null

                ),

            ):array(),

            parent::getActions($request, $verb)

        );

    }

    public function manage($args, $request) {

        switch ($request->getUserVar('verb')) {

            case 'settings':

                AppLocale::requireComponents(LOCALE_COMPONENT_APP_COMMON,  LOCALE_COMPONENT_PKP_MANAGER);

                $this->import('XML2HTMLSettingsForm');

                $form = new XML2HTMLSettingsForm($this, $request->getContext()->getId());

                if ($request->getUserVar('save')) {

                    $form->readInputData();

                    if ($form->validate()) {

                        $form->execute();

                        $notificationManager = new NotificationManager();

                        $notificationManager->createTrivialNotification($request->getUser()->getId());

                        return new JSONMessage(true);

                    }

                } else {

                    $form->initData();

                }

                return new JSONMessage(true, $form->fetch($request));

        }

        return parent::manage($args, $request);

    }

    function getPluginAssetsPath($request) {

        return $request->getBaseUrl() . '/' . $this->getPluginPath() . '/resources/';

    }

<?php

import('lib.pkp.classes.form.Form');

class XML2HTMLSettingsForm extends Form {

    private static $FORMAT_SETTING = "format";

    private $_contextId;

    private $_plugin;

    /**

     * Constructor

     * @param $plugin  xml2html plugin

     * @param $contextId int Context ID

     */

    function __construct($plugin, $contextId) {

        $this->_contextId = $contextId;

        $this->_plugin = $plugin;

        parent::__construct($plugin->getTemplateResource('settingsForm.tpl'));

        $this->addCheck(new FormValidatorPost($this));

        $this->addCheck(new FormValidatorCSRF($this));

    }

    /**

     * Initialize form data.

     */

    function initData() {

        $contextId = $this->_contextId;

        $plugin = $this->_plugin;

        $this->setData('format', $plugin->getSetting($contextId, XML2HTMLSettingsForm::$FORMAT));

    }

    /**

     * Assign form data to user-submitted data.

     */

    function readInputData() {

        $this->readUserVars(array(XML2HTMLSettingsForm::$FORMAT));

//

//        // if recent items is selected, check that we have a value

//        if ($this->getData('displayItems') == 'recent') {

//            $this->addCheck(new FormValidator($this, 'recentItems', 'required', 'plugins.generic.webfeed.settings.recentItemsRequired'));

//        }

    }

    /**

     * Fetch the form.

     * @copydoc Form::fetch()

     */

    function fetch($request, $template = null, $display = false) {

        $templateMgr = TemplateManager::getManager($request);

        $templateMgr->assign('pluginName', $this->_plugin->getName());

        return parent::fetch($request);

    }

    /**

     * @copydoc Form::execute()

     */

    function execute(...$functionArgs) {

        $plugin = $this->_plugin;

        $contextId = $this->_contextId;

        $plugin->updateSetting($contextId, XML2HTMLSettingsForm::$FORMAT, $this->getData(XML2HTMLSettingsForm::$FORMAT));

        parent::execute(...$functionArgs);

    }

}

<script>

    $(function() {ldelim}

        // Attach the form handler.

        $('#xml2htmlSettingsForm').pkpHandler('$.pkp.controllers.form.AjaxFormHandler');

        {rdelim});

</script>

<form class="pkp_form" id="xml2htmlSettingsForm" method="post" action="{url router=$smarty.const.ROUTE_COMPONENT op="manage" category="generic" plugin=$pluginName verb="settings" save=true}">

    <div id="xml2htmlSettings">

            TEST

    </div>

</form>