a7n_core/
modifiers.rs

1// SPDX-License-Identifier: GPL-3.0-or-later
2
3//! Default physical modifier mapping between platforms.
4
5use a7n_proto::v1::Platform;
6
7pub const LEFT_CTRL: u32 = 0x0007_00e0;
8pub const LEFT_META: u32 = 0x0007_00e3;
9pub const RIGHT_CTRL: u32 = 0x0007_00e4;
10pub const RIGHT_META: u32 = 0x0007_00e7;
11
12const CMD_CTRL_SWAP: &[(u32, u32)] = &[
13    (LEFT_META, LEFT_CTRL),
14    (LEFT_CTRL, LEFT_META),
15    (RIGHT_META, RIGHT_CTRL),
16    (RIGHT_CTRL, RIGHT_META),
17];
18
19#[must_use]
20pub fn default_modifier_remap(sender: Platform, receiver: Platform) -> &'static [(u32, u32)] {
21    match (sender, receiver) {
22        (Platform::Macos, Platform::Windows | Platform::Linux)
23        | (Platform::Windows | Platform::Linux, Platform::Macos) => CMD_CTRL_SWAP,
24        _ => &[],
25    }
26}
27
28#[cfg(test)]
29mod tests {
30    use super::*;
31
32    #[test]
33    fn default_modifier_remap_platform_pairs_swap_only_between_mac_and_pc() {
34        // Arrange
35        let platforms = [
36            Platform::Macos,
37            Platform::Windows,
38            Platform::Linux,
39            Platform::Unspecified,
40        ];
41        let expected_swap = [
42            (0x0007_00e3, 0x0007_00e0),
43            (0x0007_00e0, 0x0007_00e3),
44            (0x0007_00e7, 0x0007_00e4),
45            (0x0007_00e4, 0x0007_00e7),
46        ];
47        let swaps = [
48            [false, true, true, false],
49            [true, false, false, false],
50            [true, false, false, false],
51            [false, false, false, false],
52        ];
53        for (i, sender) in platforms.into_iter().enumerate() {
54            for (j, receiver) in platforms.into_iter().enumerate() {
55                // Act
56                let remap = default_modifier_remap(sender, receiver);
57
58                // Assert
59                let expected = if swaps[i][j] {
60                    expected_swap.as_slice()
61                } else {
62                    &[]
63                };
64                assert_eq!(remap, expected, "{sender:?} → {receiver:?}");
65            }
66        }
67    }
68}
a7n_core/modifiers.rs

a7n_core/
modifiers.rs
