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use Cancellable;
use Error;
use FileInfo;
use IOStream;
use Seekable;
use ffi;
#[cfg(feature = "futures")]
use futures_core;
use glib;
use glib::object::IsA;
use glib::translate::*;
use glib_ffi;
use gobject_ffi;
#[cfg(feature = "futures")]
use std::boxed::Box as Box_;
use std::mem;
use std::ptr;
glib_wrapper! {
pub struct FileIOStream(Object<ffi::GFileIOStream, ffi::GFileIOStreamClass>): IOStream, Seekable;
match fn {
get_type => || ffi::g_file_io_stream_get_type(),
}
}
pub trait FileIOStreamExt: Sized {
fn get_etag(&self) -> Option<String>;
fn query_info<'a, P: Into<Option<&'a Cancellable>>>(&self, attributes: &str, cancellable: P) -> Result<FileInfo, Error>;
fn query_info_async<'a, P: Into<Option<&'a Cancellable>>, Q: FnOnce(Result<FileInfo, Error>) + Send + 'static>(&self, attributes: &str, io_priority: glib::Priority, cancellable: P, callback: Q);
#[cfg(feature = "futures")]
fn query_info_async_future(&self, attributes: &str, io_priority: glib::Priority) -> Box_<futures_core::Future<Item = (Self, FileInfo), Error = (Self, Error)>>;
}
impl<O: IsA<FileIOStream> + IsA<glib::object::Object> + Clone + 'static> FileIOStreamExt for O {
fn get_etag(&self) -> Option<String> {
unsafe {
from_glib_full(ffi::g_file_io_stream_get_etag(self.to_glib_none().0))
}
}
fn query_info<'a, P: Into<Option<&'a Cancellable>>>(&self, attributes: &str, cancellable: P) -> Result<FileInfo, Error> {
let cancellable = cancellable.into();
let cancellable = cancellable.to_glib_none();
unsafe {
let mut error = ptr::null_mut();
let ret = ffi::g_file_io_stream_query_info(self.to_glib_none().0, attributes.to_glib_none().0, cancellable.0, &mut error);
if error.is_null() { Ok(from_glib_full(ret)) } else { Err(from_glib_full(error)) }
}
}
fn query_info_async<'a, P: Into<Option<&'a Cancellable>>, Q: FnOnce(Result<FileInfo, Error>) + Send + 'static>(&self, attributes: &str, io_priority: glib::Priority, cancellable: P, callback: Q) {
let cancellable = cancellable.into();
let cancellable = cancellable.to_glib_none();
let user_data: Box<Box<Q>> = Box::new(Box::new(callback));
unsafe extern "C" fn query_info_async_trampoline<Q: FnOnce(Result<FileInfo, Error>) + Send + 'static>(_source_object: *mut gobject_ffi::GObject, res: *mut ffi::GAsyncResult, user_data: glib_ffi::gpointer)
{
let mut error = ptr::null_mut();
let ret = ffi::g_file_io_stream_query_info_finish(_source_object as *mut _, res, &mut error);
let result = if error.is_null() { Ok(from_glib_full(ret)) } else { Err(from_glib_full(error)) };
let callback: Box<Box<Q>> = Box::from_raw(user_data as *mut _);
callback(result);
}
let callback = query_info_async_trampoline::<Q>;
unsafe {
ffi::g_file_io_stream_query_info_async(self.to_glib_none().0, attributes.to_glib_none().0, io_priority.to_glib(), cancellable.0, Some(callback), Box::into_raw(user_data) as *mut _);
}
}
#[cfg(feature = "futures")]
fn query_info_async_future(&self, attributes: &str, io_priority: glib::Priority) -> Box_<futures_core::Future<Item = (Self, FileInfo), Error = (Self, Error)>> {
use GioFuture;
use fragile::Fragile;
let attributes = String::from(attributes);
GioFuture::new(self, move |obj, send| {
let cancellable = Cancellable::new();
let send = Fragile::new(send);
let obj_clone = Fragile::new(obj.clone());
obj.query_info_async(
&attributes,
io_priority,
Some(&cancellable),
move |res| {
let obj = obj_clone.into_inner();
let res = res.map(|v| (obj.clone(), v)).map_err(|v| (obj.clone(), v));
let _ = send.into_inner().send(res);
},
);
cancellable
})
}
}