PreviewBlock::getAvailableViews

private function getAvailableViews()
{
	static $views;
	if (!$views)
	{
		$viewProvider = new ViewProvider();
		$results = $viewProvider->execute()->getResults();
		foreach ($results as $result)
		{
			if ($result::USE_IN_VISUAL_CONSTRUCTOR)
			{
				$views[$result->getKey()] = $result;
			}
		}
	}

	return $views;
}