gio/auto/
loadable_icon.rs

1// This file was generated by gir (https://github.com/gtk-rs/gir)
2// from gir-files (https://github.com/gtk-rs/gir-files)
3// DO NOT EDIT
4
5#[cfg(feature = "futures")]
6use futures::future;
7use gio_sys;
8use glib::object::IsA;
9use glib::translate::*;
10use glib::GString;
11use glib_sys;
12use gobject_sys;
13#[cfg(feature = "futures")]
14use std::boxed::Box as Box_;
15use std::fmt;
16use std::ptr;
17use Cancellable;
18use Error;
19use Icon;
20use InputStream;
21
22glib_wrapper! {
23    pub struct LoadableIcon(Interface<gio_sys::GLoadableIcon>) @requires Icon;
24
25    match fn {
26        get_type => || gio_sys::g_loadable_icon_get_type(),
27    }
28}
29
30pub const NONE_LOADABLE_ICON: Option<&LoadableIcon> = None;
31
32pub trait LoadableIconExt: 'static {
33    fn load<P: IsA<Cancellable>>(
34        &self,
35        size: i32,
36        cancellable: Option<&P>,
37    ) -> Result<(InputStream, GString), Error>;
38
39    fn load_async<
40        P: IsA<Cancellable>,
41        Q: FnOnce(Result<(InputStream, GString), Error>) + Send + 'static,
42    >(
43        &self,
44        size: i32,
45        cancellable: Option<&P>,
46        callback: Q,
47    );
48
49    #[cfg(feature = "futures")]
50    fn load_async_future(
51        &self,
52        size: i32,
53    ) -> Box_<dyn future::Future<Output = Result<(InputStream, GString), Error>> + std::marker::Unpin>;
54}
55
56impl<O: IsA<LoadableIcon>> LoadableIconExt for O {
57    fn load<P: IsA<Cancellable>>(
58        &self,
59        size: i32,
60        cancellable: Option<&P>,
61    ) -> Result<(InputStream, GString), Error> {
62        unsafe {
63            let mut type_ = ptr::null_mut();
64            let mut error = ptr::null_mut();
65            let ret = gio_sys::g_loadable_icon_load(
66                self.as_ref().to_glib_none().0,
67                size,
68                &mut type_,
69                cancellable.map(|p| p.as_ref()).to_glib_none().0,
70                &mut error,
71            );
72            if error.is_null() {
73                Ok((from_glib_full(ret), from_glib_full(type_)))
74            } else {
75                Err(from_glib_full(error))
76            }
77        }
78    }
79
80    fn load_async<
81        P: IsA<Cancellable>,
82        Q: FnOnce(Result<(InputStream, GString), Error>) + Send + 'static,
83    >(
84        &self,
85        size: i32,
86        cancellable: Option<&P>,
87        callback: Q,
88    ) {
89        let user_data: Box<Q> = Box::new(callback);
90        unsafe extern "C" fn load_async_trampoline<
91            Q: FnOnce(Result<(InputStream, GString), Error>) + Send + 'static,
92        >(
93            _source_object: *mut gobject_sys::GObject,
94            res: *mut gio_sys::GAsyncResult,
95            user_data: glib_sys::gpointer,
96        ) {
97            let mut error = ptr::null_mut();
98            let mut type_ = ptr::null_mut();
99            let ret = gio_sys::g_loadable_icon_load_finish(
100                _source_object as *mut _,
101                res,
102                &mut type_,
103                &mut error,
104            );
105            let result = if error.is_null() {
106                Ok((from_glib_full(ret), from_glib_full(type_)))
107            } else {
108                Err(from_glib_full(error))
109            };
110            let callback: Box<Q> = Box::from_raw(user_data as *mut _);
111            callback(result);
112        }
113        let callback = load_async_trampoline::<Q>;
114        unsafe {
115            gio_sys::g_loadable_icon_load_async(
116                self.as_ref().to_glib_none().0,
117                size,
118                cancellable.map(|p| p.as_ref()).to_glib_none().0,
119                Some(callback),
120                Box::into_raw(user_data) as *mut _,
121            );
122        }
123    }
124
125    #[cfg(feature = "futures")]
126    fn load_async_future(
127        &self,
128        size: i32,
129    ) -> Box_<dyn future::Future<Output = Result<(InputStream, GString), Error>> + std::marker::Unpin>
130    {
131        use fragile::Fragile;
132        use GioFuture;
133
134        GioFuture::new(self, move |obj, send| {
135            let cancellable = Cancellable::new();
136            let send = Fragile::new(send);
137            obj.load_async(size, Some(&cancellable), move |res| {
138                let _ = send.into_inner().send(res);
139            });
140
141            cancellable
142        })
143    }
144}
145
146impl fmt::Display for LoadableIcon {
147    fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
148        write!(f, "LoadableIcon")
149    }
150}