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<?php
namespace Gt\Dom;
class DOMStringMapFactory extends DOMStringMap {
public static function createDataset(Element $element):DOMStringMap {
return new DOMStringMap(
function() use($element) {
$keyValuePairs = [];
/**
* @var string $key
* @var Attr $attr
*/
foreach($element->attributes as $key => $attr) {
if(!str_starts_with($key, "data-")) {
continue;
}
$trimmedKey = substr($key, strlen("data-"));
$keyValuePairs[$trimmedKey] = $attr->value;
}
return $keyValuePairs;
},
/** @param array<string,string> $keyValuePairs */
function(array $keyValuePairs) use($element) {
foreach($keyValuePairs as $key => $value) {
$dataKey = "data-$key";
$current = $element->getAttribute($dataKey);
if($value === $current) {
continue;
}
$element->setAttribute($dataKey, $value);
}
}
);
}
}