MailSender::renderControl

static function renderControl(FieldType $fieldType, array $field, $value, $allowSelection, $renderMode)
{
	$providers = static::getMailboxList();
	$fieldName = htmlspecialcharsbx(static::generateControlName($field));

	$isPublicControl = $renderMode & FieldType::RENDER_MODE_PUBLIC;

	$typeValue = $value;
	if (is_array($typeValue))
	{
		$typeValue = (string)current($value);
	}

	$valueHtml = htmlspecialcharsbx((string)$typeValue);
	$nodeAttributes = '';

	if ($allowSelection && $isPublicControl)
	{
		$nodeAttributes = sprintf(
			'data-role="inline-selector-target" data-select-mode="replace" data-property="%s" ',
			htmlspecialcharsbx(MainWebJson::encode($fieldType->getProperty()))
		);
	}

	if (!$isPublicControl)
	{
		$nodeAttributes .= 'style="opacity: 1" ';
	}

	$controlId = htmlspecialcharsbx(static::generateControlId($field));
	$className = htmlspecialcharsbx(static::generateControlClassName($fieldType, $field));
	$placeholder = htmlspecialcharsbx(Loc::getMessage('BP_FIELDTYPE_MAIL_SENDER_AUTO'));

	$node = <<
HTML;

	if ($allowSelection && !$isPublicControl)
	{
		$node .= static::renderControlSelectorButton($controlId, $fieldType, 'replace');
	}

	return $node . static::getJs($providers, $controlId);
}