public static function getInstance()
{
if (is_null(self::$instance)) {
self::$instance = new AppCacheManifest();
}
return self::$instance;
}
/**
* Sets custom file for getting of manifest content
* self::MANIFEST_CHECK_FILE uses by default
*@param string $customManifestCheckFile
*/
public static function setManifestCheckFile($customManifestCheckFile)
{
self::$customCheckFile = $customManifestCheckFile;
}
/**
* Creates or updates the manifest file for the page with usage its content.
*
* @param bool $isEnable
*
* @internal param $content
*/
public static function setEnabled($isEnabled = true)
{
self::$isEnabled = (bool) $isEnabled;
}