Call::buildSubjectBlock

private function buildSubjectBlock(): ?ContentBlock
{
	$subject = $this->getAssociatedEntityModel()->get('SUBJECT');
	if (empty($subject))
	{
		return null;
	}

	return (new ContentBlockWithTitle())
		->setTitle(Loc::getMessage("CRM_TIMELINE_BLOCK_TITLE_THEME"))
		->setContentBlock(ContentBlockFactory::createTitle((string)$subject))
		->setInline()
	;
}