pub trait VfsExt: 'static {
// Required methods
fn file_for_path(&self, path: &str) -> File;
fn file_for_uri(&self, uri: &str) -> File;
fn supported_uri_schemes(&self) -> Vec<GString>;
fn is_active(&self) -> bool;
fn parse_name(&self, parse_name: &str) -> File;
fn register_uri_scheme(
&self,
scheme: &str,
uri_func: Option<Box_<dyn Fn(&Vfs, &str) -> File + 'static>>,
parse_name_func: Option<Box_<dyn Fn(&Vfs, &str) -> File + 'static>>
) -> bool;
fn unregister_uri_scheme(&self, scheme: &str) -> bool;
}