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use crate::HoverContext;
use crate::HoverDisplay;
use glib::object::IsA;
use glib::translate::*;
use std::boxed::Box as Box_;
use std::fmt;
use std::pin::Pin;
use std::ptr;
glib::wrapper! {
pub struct HoverProvider(Interface<ffi::GtkSourceHoverProvider, ffi::GtkSourceHoverProviderInterface>);
match fn {
get_type => || ffi::gtk_source_hover_provider_get_type(),
}
}
pub const NONE_HOVER_PROVIDER: Option<&HoverProvider> = None;
pub trait HoverProviderExt: 'static {
#[doc(alias = "gtk_source_hover_provider_populate_async")]
fn populate_async<
P: IsA<gio::Cancellable>,
Q: FnOnce(Result<(), glib::Error>) + Send + 'static,
>(
&self,
context: &HoverContext,
display: &HoverDisplay,
cancellable: Option<&P>,
callback: Q,
);
fn populate_async_future(
&self,
context: &HoverContext,
display: &HoverDisplay,
) -> Pin<Box_<dyn std::future::Future<Output = Result<(), glib::Error>> + 'static>>;
}
impl<O: IsA<HoverProvider>> HoverProviderExt for O {
fn populate_async<
P: IsA<gio::Cancellable>,
Q: FnOnce(Result<(), glib::Error>) + Send + 'static,
>(
&self,
context: &HoverContext,
display: &HoverDisplay,
cancellable: Option<&P>,
callback: Q,
) {
let user_data: Box_<Q> = Box_::new(callback);
unsafe extern "C" fn populate_async_trampoline<
Q: FnOnce(Result<(), glib::Error>) + Send + '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 _ = ffi::gtk_source_hover_provider_populate_finish(
_source_object as *mut _,
res,
&mut error,
);
let result = if error.is_null() {
Ok(())
} else {
Err(from_glib_full(error))
};
let callback: Box_<Q> = Box_::from_raw(user_data as *mut _);
callback(result);
}
let callback = populate_async_trampoline::<Q>;
unsafe {
ffi::gtk_source_hover_provider_populate_async(
self.as_ref().to_glib_none().0,
context.to_glib_none().0,
display.to_glib_none().0,
cancellable.map(|p| p.as_ref()).to_glib_none().0,
Some(callback),
Box_::into_raw(user_data) as *mut _,
);
}
}
fn populate_async_future(
&self,
context: &HoverContext,
display: &HoverDisplay,
) -> Pin<Box_<dyn std::future::Future<Output = Result<(), glib::Error>> + 'static>> {
let context = context.clone();
let display = display.clone();
Box_::pin(gio::GioFuture::new(self, move |obj, send| {
let cancellable = gio::Cancellable::new();
obj.populate_async(&context, &display, Some(&cancellable), move |res| {
send.resolve(res);
});
cancellable
}))
}
}
impl fmt::Display for HoverProvider {
fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
f.write_str("HoverProvider")
}
}