/**
* Generates an image tag that handle multiple sizes and rendered with picturefill
*
* ```
* $options = [
* 'sizes' => '(min-width: 40em) 80vw, 100vw'
* 'srcset' => [375, 480, 780]
* ]
* ```
*
* @param \Cake\Datasource\EntityInterface $entity The entity that is going to be saved
* @param array $options picturefill options
* @return string
*/
public function picturefill(Entity $entity, array $options)
{
$srcset = '';
foreach ($options['srcset'] as $size) {
$src = $entity->getUrl(['w' => $size]);
$src .= " " . $size . "w";
$srcset[] = $src;
}
$options['srcset'] = implode(" ,", $srcset);
$picturefill = $this->Html->image($entity->getUrl($options), $options);
$selfLoad = $this->Require->module('picturefill');
return $picturefill . $selfLoad;
}
