gtk/
menu.rs

1// Take a look at the license at the top of the repository in the LICENSE file.
2
3use crate::Widget;
4use crate::{Menu, ffi};
5use glib::object::Cast;
6use glib::object::IsA;
7use glib::translate::*;
8use libc::c_int;
9use std::boxed::Box as Box_;
10use std::ptr;
11
12mod sealed {
13    pub trait Sealed {}
14    impl<T: glib::object::IsA<crate::Menu>> Sealed for T {}
15}
16
17pub trait GtkMenuExtManual: IsA<Menu> + sealed::Sealed + 'static {
18    #[doc(alias = "gtk_menu_popup")]
19    fn popup<
20        T: IsA<Widget>,
21        U: IsA<Widget>,
22        F: FnOnce(&Self, &mut i32, &mut i32) -> bool + 'static,
23    >(
24        &self,
25        parent_menu_shell: Option<&T>,
26        parent_menu_item: Option<&U>,
27        f: F,
28        button: u32,
29        activate_time: u32,
30    ) {
31        unsafe extern "C" fn position_callback<
32            T,
33            F: FnOnce(&T, &mut i32, &mut i32) -> bool + 'static,
34        >(
35            this: *mut ffi::GtkMenu,
36            x: *mut c_int,
37            y: *mut c_int,
38            push_in: *mut glib::ffi::gboolean,
39            f: glib::ffi::gpointer,
40        ) where
41            T: IsA<Menu>,
42        {
43            unsafe {
44                let mut f: Box<Option<F>> = Box::from_raw(f as *mut _);
45                let f = f.take().expect("No callback");
46                *push_in = f(
47                    &Menu::from_glib_none(this).unsafe_cast(),
48                    x.as_mut().unwrap(),
49                    y.as_mut().unwrap(),
50                )
51                .into_glib();
52            }
53        }
54        unsafe {
55            let f: Box_<Option<F>> = Box_::new(Some(f));
56            ffi::gtk_menu_popup(
57                self.as_ref().to_glib_none().0,
58                parent_menu_shell.map(|p| p.as_ref()).to_glib_none().0,
59                parent_menu_item.map(|p| p.as_ref()).to_glib_none().0,
60                Some(position_callback::<Self, F>),
61                Box_::into_raw(f) as *mut _,
62                button,
63                activate_time,
64            )
65        }
66    }
67
68    #[doc(alias = "gtk_menu_popup_easy")]
69    fn popup_easy(&self, button: u32, activate_time: u32) {
70        unsafe {
71            ffi::gtk_menu_popup(
72                self.as_ref().to_glib_none().0,
73                ptr::null_mut(),
74                ptr::null_mut(),
75                None,
76                ptr::null_mut(),
77                button,
78                activate_time,
79            )
80        }
81    }
82}
83
84impl<O: IsA<Menu>> GtkMenuExtManual for O {}
gtk/menu.rs

gtk/
menu.rs
