wcpopup 0.9.3

Context menu for Windows and Linux
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
135
136
137
138
139
140
141

use super::to_gtk_menu_item;
#[cfg(feature = "accelerator")]
use super::to_gtk_window;
use super::{util::get_accel_group, MenuItem, MenuItemType};
#[cfg(feature = "accelerator")]
use gtk::{
    accelerator_name,
    glib::{Propagation, Quark},
    prelude::AccelGroupExt,
};
use gtk::{
    gdk::{keys::Key, ModifierType},
    prelude::WidgetExt,
    traits::GtkWindowExt,
    AccelFlags, AccelGroup,
};
use std::collections::HashMap;

pub(crate) struct AcceleratorKey {
    pub(crate) key: u32,
    pub(crate) modifier_type: ModifierType,
}

const MODIFIERS: [&str; 3] = ["CTRL", "ALT", "SHIFT"];

pub(crate) fn setup_accel_group(accelerators: &HashMap<isize, String>) -> AccelGroup {
    let accel_group = AccelGroup::new();
    for (menu_item_handle, accelerator) in accelerators {
        if let Some(accelerator_key) = get_accelerator_key(accelerator.as_str()) {
            let gtk_menu_item = to_gtk_menu_item(*menu_item_handle);
            gtk_menu_item.add_accelerator("activate", &accel_group, accelerator_key.key, accelerator_key.modifier_type, AccelFlags::VISIBLE);
        }
    }
    accel_group
}

pub(crate) fn add_accelerator(main_gtk_menu_handle: isize, new_accelerators: &HashMap<isize, String>) {
    let accel_group = get_accel_group(main_gtk_menu_handle);

    for (menu_item_handle, accelerator) in new_accelerators {
        if let Some(accelerator_key) = get_accelerator_key(accelerator.as_str()) {
            let gtk_menu_item = to_gtk_menu_item(*menu_item_handle);
            gtk_menu_item.add_accelerator("activate", accel_group, accelerator_key.key, accelerator_key.modifier_type, AccelFlags::VISIBLE);
        }
    }
}

pub(crate) fn add_accelerators_from_menu_item(main_gtk_menu_handle: isize, item: &MenuItem) {
    let items = if item.menu_item_type == MenuItemType::Submenu {
        item.submenu.as_ref().unwrap().items()
    } else {
        vec![item.clone()]
    };

    let mut items_with_accel = Vec::new();
    for item in items {
        if !item.accelerator.is_empty() {
            items_with_accel.push(item);
        }
    }

    if items_with_accel.is_empty() {
        return;
    }

    let mut accelerators = HashMap::new();

    for item in items_with_accel {
        accelerators.insert(item.gtk_menu_item_handle, item.accelerator.clone());
    }

    add_accelerator(main_gtk_menu_handle, &accelerators);
}

pub(crate) fn get_accelerator_key(accelerator: &str) -> Option<AcceleratorKey> {
    let upper_key = accelerator.to_uppercase();
    let upper_keys: Vec<&str> = upper_key.split('+').collect();

    if MODIFIERS.contains(&upper_keys[upper_keys.len() - 1]) {
        return None;
    }

    let keys: Vec<&str> = accelerator.split('+').collect();
    let key_str = keys[keys.len() - 1];
    let key = Key::from_name(key_str);

    let mut modifier_type = ModifierType::empty();

    if upper_keys.contains(&"CTRL") {
        modifier_type.set(ModifierType::CONTROL_MASK, true);
    }

    if upper_keys.contains(&"ALT") {
        modifier_type.set(ModifierType::MOD1_MASK, true);
    }

    if upper_keys.contains(&"SHIFT") {
        modifier_type.set(ModifierType::SHIFT_MASK, true);
    }

    Some(AcceleratorKey {
        key: *key,
        modifier_type,
    })
}

pub(crate) fn add_accel_group(gtk_window: &gtk::Window, gtk_menu_handle: isize) {
    let accel_group = get_accel_group(gtk_menu_handle);
    gtk_window.add_accel_group(accel_group);
}

pub(crate) fn remove_accel_group(gtk_window: &gtk::Window, gtk_menu_handle: isize) {
    let accel_group = get_accel_group(gtk_menu_handle);
    gtk_window.remove_accel_group(accel_group);
}

#[cfg(feature = "accelerator")]
pub(crate) fn connect_accelerator(gtk_menu: &gtk::Menu, gtk_menu_handle: isize, gtk_window_handle: isize) {
    gtk_menu.connect_key_press_event(move |memu, event| {
        let key_val = event.keyval();
        let mut modifiers = event.state();

        modifiers &= !(ModifierType::MOD2_MASK | ModifierType::MOD3_MASK | ModifierType::MOD4_MASK | ModifierType::MOD5_MASK);

        if let Some(quark) = accelerator_name(*key_val, modifiers) {
            let accel_quark = Quark::from_str(quark);
            let accel_group = get_accel_group(gtk_menu_handle);
            let gtk_window = to_gtk_window(gtk_window_handle);
            let result = accel_group.activate(accel_quark, &gtk_window, *key_val, modifiers);

            if result {
                memu.hide();
                return Propagation::Stop;
            } else {
                return Propagation::Proceed;
            }
        }

        Propagation::Proceed
    });
}