/**
* Create a form element with necessary controls
*
* @return $this
*/
protected function _prepareForm()
{
/** @var \Magento\Framework\Data\Form $form */
$form = $this->_formFactory->create();
$this->setForm($form);
$this->_addThemeCssFieldset();
$customFiles = $this->_getCurrentTheme()->getCustomization()->getFilesByType(\Magento\Theme\Model\Theme\Customization\File\CustomCss::TYPE);
$this->_customCssFile = reset($customFiles);
$this->_addCustomCssFieldset();
$formData['custom_css_content'] = $this->_customCssFile ? $this->_customCssFile->getContent() : null;
/** @var $session \Magento\Backend\Model\Session */
$session = $this->_objectManager->get('Magento\\Backend\\Model\\Session');
$cssFileContent = $session->getThemeCustomCssData();
if ($cssFileContent) {
$formData['custom_css_content'] = $cssFileContent;
$session->unsThemeCustomCssData();
}
$form->addValues($formData);
parent::_prepareForm();
return $this;
}
