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<?php
namespace Scene7\Helpers\Html\Attributes;
use Scene7\Helpers\ImageMultiplier;
use Scene7\RenderInterface;
use Scene7\Requests\Image;
class Srcset implements RenderInterface
{
use ImageMultiplier;
protected $srcset = '';
protected $image;
protected $multipliers = [];
public function __construct($srcset = '', Image $image = null, array $multipliers = [])
{
$this->srcset = $srcset;
$this->setImage($image);
$this->setMultipliers($multipliers);
}
public function setImage(Image $image = null)
{
$this->image = $image;
return $this;
}
public function setMultipliers(array $multipliers = [])
{
$this->multipliers = $multipliers;
return $this;
}
public function render()
{
return $this->image instanceof Image ? $this->renderFromImage() : $this->srcset;
}
protected function renderFromImage()
{
$srcset = '';
if (!empty($this->multipliers)) {
$images = $this->getMultipliedImages($this->image, $this->multipliers);
foreach ($images as $multiplier => $multImage) {
$srcset .= $multImage->render() . ' ' . ((int) $multiplier) . 'x,';
}
} else {
$srcset = $this->image->render();
}
return $srcset;
}
public function __toString()
{
return $this->render();
}
}