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use gio_sys;
use glib;
use glib::object::IsA;
use glib::translate::*;
use glib::GString;
use glib_sys;
use gobject_sys;
use std::boxed::Box as Box_;
use std::fmt;
use std::pin::Pin;
use std::ptr;
use Cancellable;
use Icon;
use InputStream;
glib_wrapper! {
pub struct LoadableIcon(Interface<gio_sys::GLoadableIcon>) @requires Icon;
match fn {
get_type => || gio_sys::g_loadable_icon_get_type(),
}
}
pub const NONE_LOADABLE_ICON: Option<&LoadableIcon> = None;
pub trait LoadableIconExt: 'static {
fn load<P: IsA<Cancellable>>(
&self,
size: i32,
cancellable: Option<&P>,
) -> Result<(InputStream, GString), glib::Error>;
fn load_async<
P: IsA<Cancellable>,
Q: FnOnce(Result<(InputStream, GString), glib::Error>) + Send + 'static,
>(
&self,
size: i32,
cancellable: Option<&P>,
callback: Q,
);
fn load_async_future(
&self,
size: i32,
) -> Pin<
Box_<
dyn std::future::Future<Output = Result<(InputStream, GString), glib::Error>> + 'static,
>,
>;
}
impl<O: IsA<LoadableIcon>> LoadableIconExt for O {
fn load<P: IsA<Cancellable>>(
&self,
size: i32,
cancellable: Option<&P>,
) -> Result<(InputStream, GString), glib::Error> {
unsafe {
let mut type_ = ptr::null_mut();
let mut error = ptr::null_mut();
let ret = gio_sys::g_loadable_icon_load(
self.as_ref().to_glib_none().0,
size,
&mut type_,
cancellable.map(|p| p.as_ref()).to_glib_none().0,
&mut error,
);
if error.is_null() {
Ok((from_glib_full(ret), from_glib_full(type_)))
} else {
Err(from_glib_full(error))
}
}
}
fn load_async<
P: IsA<Cancellable>,
Q: FnOnce(Result<(InputStream, GString), glib::Error>) + Send + 'static,
>(
&self,
size: i32,
cancellable: Option<&P>,
callback: Q,
) {
let user_data: Box_<Q> = Box_::new(callback);
unsafe extern "C" fn load_async_trampoline<
Q: FnOnce(Result<(InputStream, GString), glib::Error>) + Send + 'static,
>(
_source_object: *mut gobject_sys::GObject,
res: *mut gio_sys::GAsyncResult,
user_data: glib_sys::gpointer,
) {
let mut error = ptr::null_mut();
let mut type_ = ptr::null_mut();
let ret = gio_sys::g_loadable_icon_load_finish(
_source_object as *mut _,
res,
&mut type_,
&mut error,
);
let result = if error.is_null() {
Ok((from_glib_full(ret), from_glib_full(type_)))
} else {
Err(from_glib_full(error))
};
let callback: Box_<Q> = Box_::from_raw(user_data as *mut _);
callback(result);
}
let callback = load_async_trampoline::<Q>;
unsafe {
gio_sys::g_loadable_icon_load_async(
self.as_ref().to_glib_none().0,
size,
cancellable.map(|p| p.as_ref()).to_glib_none().0,
Some(callback),
Box_::into_raw(user_data) as *mut _,
);
}
}
fn load_async_future(
&self,
size: i32,
) -> Pin<
Box_<
dyn std::future::Future<Output = Result<(InputStream, GString), glib::Error>> + 'static,
>,
> {
Box_::pin(crate::GioFuture::new(self, move |obj, send| {
let cancellable = Cancellable::new();
obj.load_async(size, Some(&cancellable), move |res| {
send.resolve(res);
});
cancellable
}))
}
}
impl fmt::Display for LoadableIcon {
fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
write!(f, "LoadableIcon")
}
}