FestiIDE Plugin

More detail about IDE you could found via link: https://ace.c9.io/.

Editor for HTML form

 $idePlugin = Core::getInstance()->getPluginInstance('FestiIDE');

 $editor = $idePlugin->fetchEditor($value, 'java', 'editor');

...

$editor = $this->plugin->festiIDE->fetchEditor($value, 'html', 'editor');

DGS Field

<field  type="ide"
        caption="<?php echo __('Content'); ?>"
        name="content"
        hide="true"
        mode="php" />