use crate::Location;
use glib::object::IsA;
use glib::translate::*;
use std::boxed::Box as Box_;
use std::pin::Pin;
use std::ptr;
impl Location {
#[doc(alias = "gweather_location_detect_nearest_city")]
pub fn detect_nearest_city<P: FnOnce(Result<Location, glib::Error>) + 'static>(
&self,
lat: f64,
lon: f64,
cancellable: Option<&impl IsA<gio::Cancellable>>,
callback: P,
) {
let main_context = glib::MainContext::ref_thread_default();
let is_main_context_owner = main_context.is_owner();
let has_acquired_main_context = (!is_main_context_owner)
.then(|| main_context.acquire().ok())
.flatten();
assert!(
is_main_context_owner || has_acquired_main_context.is_some(),
"Async operations only allowed if the thread is owning the MainContext"
);
let user_data: Box_<glib::thread_guard::ThreadGuard<P>> =
Box_::new(glib::thread_guard::ThreadGuard::new(callback));
unsafe extern "C" fn detect_nearest_city_trampoline<
P: FnOnce(Result<Location, glib::Error>) + 'static,
>(
_source_object: *mut glib::gobject_ffi::GObject,
res: *mut gio::ffi::GAsyncResult,
user_data: glib::ffi::gpointer,
) {
let mut error = ptr::null_mut();
let ret = ffi::gweather_location_detect_nearest_city_finish(res, &mut error);
let result = if error.is_null() {
Ok(from_glib_full(ret))
} else {
Err(from_glib_full(error))
};
let callback: Box_<glib::thread_guard::ThreadGuard<P>> =
Box_::from_raw(user_data as *mut _);
let callback: P = callback.into_inner();
callback(result);
}
let callback = detect_nearest_city_trampoline::<P>;
unsafe {
ffi::gweather_location_detect_nearest_city(
self.to_glib_none().0,
lat,
lon,
cancellable.map(|p| p.as_ref()).to_glib_none().0,
Some(callback),
Box_::into_raw(user_data) as *mut _,
);
}
}
pub fn detect_nearest_city_future(
&self,
lat: f64,
lon: f64,
) -> Pin<Box_<dyn std::future::Future<Output = Result<Location, glib::Error>> + 'static>> {
Box_::pin(gio::GioFuture::new(self, move |obj, cancellable, send| {
obj.detect_nearest_city(lat, lon, Some(cancellable), move |res| {
send.resolve(res);
});
}))
}
}