gio 0.22.2

Rust bindings for the Gio library
Documentation 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134

// Take a look at the license at the top of the repository in the LICENSE file.

use std::{collections::HashMap, sync::OnceLock};

use glib::{GString, Quark, prelude::*, subclass::prelude::*, translate::*};

use crate::{Action, ActionMap, ffi};

pub trait ActionMapImpl: ObjectImpl + ObjectSubclass<Type: IsA<ActionMap>> {
    fn lookup_action(&self, action_name: &str) -> Option<Action>;
    fn add_action(&self, action: &Action);
    fn remove_action(&self, action_name: &str);
}

pub trait ActionMapImplExt: ActionMapImpl {
    fn parent_lookup_action(&self, name: &str) -> Option<Action> {
        unsafe {
            let type_data = Self::type_data();
            let parent_iface = type_data.as_ref().parent_interface::<ActionMap>()
                as *const ffi::GActionMapInterface;

            let func = (*parent_iface)
                .lookup_action
                .expect("no parent \"lookup_action\" implementation");
            let ret = func(
                self.obj().unsafe_cast_ref::<ActionMap>().to_glib_none().0,
                name.to_glib_none().0,
            );
            from_glib_none(ret)
        }
    }

    fn parent_add_action(&self, action: &Action) {
        unsafe {
            let type_data = Self::type_data();
            let parent_iface = type_data.as_ref().parent_interface::<ActionMap>()
                as *const ffi::GActionMapInterface;

            let func = (*parent_iface)
                .add_action
                .expect("no parent \"add_action\" implementation");
            func(
                self.obj().unsafe_cast_ref::<ActionMap>().to_glib_none().0,
                action.to_glib_none().0,
            );
        }
    }

    fn parent_remove_action(&self, action_name: &str) {
        unsafe {
            let type_data = Self::type_data();
            let parent_iface = type_data.as_ref().parent_interface::<ActionMap>()
                as *const ffi::GActionMapInterface;

            let func = (*parent_iface)
                .remove_action
                .expect("no parent \"remove_action\" implementation");
            func(
                self.obj().unsafe_cast_ref::<ActionMap>().to_glib_none().0,
                action_name.to_glib_none().0,
            );
        }
    }
}

impl<T: ActionMapImpl> ActionMapImplExt for T {}

unsafe impl<T: ActionMapImpl> IsImplementable<T> for ActionMap {
    fn interface_init(iface: &mut glib::Interface<Self>) {
        let iface = iface.as_mut();

        iface.lookup_action = Some(action_map_lookup_action::<T>);
        iface.add_action = Some(action_map_add_action::<T>);
        iface.remove_action = Some(action_map_remove_action::<T>);
    }
}

unsafe extern "C" fn action_map_lookup_action<T: ActionMapImpl>(
    action_map: *mut ffi::GActionMap,
    action_nameptr: *const libc::c_char,
) -> *mut ffi::GAction {
    unsafe {
        let instance = &*(action_map as *mut T::Instance);
        let action_name = GString::from_glib_borrow(action_nameptr);
        let imp = instance.imp();

        let ret = imp.lookup_action(&action_name);
        if let Some(action) = ret {
            let instance = imp.obj();
            let actionptr = action.to_glib_none().0;

            let action_map_quark = {
                static QUARK: OnceLock<Quark> = OnceLock::new();
                *QUARK.get_or_init(|| Quark::from_str("gtk-rs-subclass-action-map-lookup-action"))
            };

            let mut map = instance
                .steal_qdata::<HashMap<String, Action>>(action_map_quark)
                .unwrap_or_default();
            map.insert(action_name.to_string(), action);
            instance.set_qdata(action_map_quark, map);

            actionptr
        } else {
            std::ptr::null_mut()
        }
    }
}

unsafe extern "C" fn action_map_add_action<T: ActionMapImpl>(
    action_map: *mut ffi::GActionMap,
    actionptr: *mut ffi::GAction,
) {
    unsafe {
        let instance = &*(action_map as *mut T::Instance);
        let imp = instance.imp();
        let action: Borrowed<Action> = from_glib_borrow(actionptr);

        imp.add_action(&action);
    }
}

unsafe extern "C" fn action_map_remove_action<T: ActionMapImpl>(
    action_map: *mut ffi::GActionMap,
    action_nameptr: *const libc::c_char,
) {
    unsafe {
        let instance = &*(action_map as *mut T::Instance);
        let imp = instance.imp();
        let action_name = GString::from_glib_borrow(action_nameptr);

        imp.remove_action(&action_name);
    }
}