/**
* A Placehold.it helper
*
* @link http://placehold.it/
* @param string $size
* @param string $set
* @param boolean $lazyload
* @return string
*/
function PlaceholdIt($size = '300x200', $set = null, $lazyload = true)
{
$html = '<img data-sizes="auto" src="http://placehold.it/' . $size . '"';
if ($set) {
$parts = explode(',', $set);
$srcset = array();
foreach ($parts as $part) {
$dim = LazySizesImageExtension::parseDimensions($part);
$srcset[] = 'http://placehold.it/' . $part . ' ' . $dim[0] . 'w';
}
$html .= ' data-srcset="' . implode(',', $srcset) . '"';
}
if ($lazyload) {
$html .= ' class="lazyload"';
}
$html .= '/>';
return $html;
}
/**
* An accessor for $_responsiveSetsCache. Stores cache if not set
*
* @param boolean $keys
* @return array
*/
protected function getResponsiveSets($keys = false)
{
if (!self::$_responsiveSetsCache) {
$list = array();
foreach (self::config()->sets as $set => $conf) {
$list[strtolower($set)] = $conf;
}
self::$_responsiveSetsCache = $list;
}
if ($keys) {
return array_keys(self::$_responsiveSetsCache);
}
return self::$_responsiveSetsCache;
}
