/**
* Gets the image preview (virtual field)
* @return string|null
* @uses MeTools\Utility\Youtube::getId()
* @uses MeTools\Utility\Youtube::getPreview()
*/
protected function _getPreview()
{
if (empty($this->_properties['text'])) {
return null;
}
//Checks for the first image in the text
preg_match('#<\\s*img [^\\>]*src\\s*=\\s*(["\'])(.*?)\\1#im', $this->_properties['text'], $matches);
if (!empty($matches[2])) {
return Router::url($matches[2], true);
}
//Checks for a YouTube video and its preview
preg_match('/\\[youtube](.+?)\\[\\/youtube]/', $this->_properties['text'], $matches);
if (!empty($matches[1])) {
return Youtube::getPreview(isUrl($matches[1]) ? Youtube::getId($matches[1]) : $matches[1]);
}
return null;
}
