Files
One-KVM/src/hid/keyboard.rs

410 lines
12 KiB
Rust

use serde::{Deserialize, Serialize};
use typeshare::typeshare;
/// Shared canonical keyboard key identifiers used across frontend and backend.
///
/// The enum names intentionally mirror `KeyboardEvent.code` style values so the
/// browser, virtual keyboard, and HID backend can all speak the same language.
#[typeshare]
#[derive(Debug, Clone, Copy, PartialEq, Eq, Hash, Serialize, Deserialize)]
pub enum CanonicalKey {
KeyA,
KeyB,
KeyC,
KeyD,
KeyE,
KeyF,
KeyG,
KeyH,
KeyI,
KeyJ,
KeyK,
KeyL,
KeyM,
KeyN,
KeyO,
KeyP,
KeyQ,
KeyR,
KeyS,
KeyT,
KeyU,
KeyV,
KeyW,
KeyX,
KeyY,
KeyZ,
Digit1,
Digit2,
Digit3,
Digit4,
Digit5,
Digit6,
Digit7,
Digit8,
Digit9,
Digit0,
Enter,
Escape,
Backspace,
Tab,
Space,
Minus,
Equal,
BracketLeft,
BracketRight,
Backslash,
Semicolon,
Quote,
Backquote,
Comma,
Period,
Slash,
CapsLock,
F1,
F2,
F3,
F4,
F5,
F6,
F7,
F8,
F9,
F10,
F11,
F12,
PrintScreen,
ScrollLock,
Pause,
Insert,
Home,
PageUp,
Delete,
End,
PageDown,
ArrowRight,
ArrowLeft,
ArrowDown,
ArrowUp,
NumLock,
NumpadDivide,
NumpadMultiply,
NumpadSubtract,
NumpadAdd,
NumpadEnter,
Numpad1,
Numpad2,
Numpad3,
Numpad4,
Numpad5,
Numpad6,
Numpad7,
Numpad8,
Numpad9,
Numpad0,
NumpadDecimal,
IntlBackslash,
ContextMenu,
F13,
F14,
F15,
F16,
F17,
F18,
F19,
F20,
F21,
F22,
F23,
F24,
ControlLeft,
ShiftLeft,
AltLeft,
MetaLeft,
ControlRight,
ShiftRight,
AltRight,
MetaRight,
}
impl CanonicalKey {
/// Convert the canonical key to a stable wire code.
///
/// The wire code intentionally matches the USB HID usage for keyboard page
/// keys so existing low-level behavior stays intact while the semantic type
/// becomes explicit.
pub const fn to_hid_usage(self) -> u8 {
match self {
Self::KeyA => 0x04,
Self::KeyB => 0x05,
Self::KeyC => 0x06,
Self::KeyD => 0x07,
Self::KeyE => 0x08,
Self::KeyF => 0x09,
Self::KeyG => 0x0A,
Self::KeyH => 0x0B,
Self::KeyI => 0x0C,
Self::KeyJ => 0x0D,
Self::KeyK => 0x0E,
Self::KeyL => 0x0F,
Self::KeyM => 0x10,
Self::KeyN => 0x11,
Self::KeyO => 0x12,
Self::KeyP => 0x13,
Self::KeyQ => 0x14,
Self::KeyR => 0x15,
Self::KeyS => 0x16,
Self::KeyT => 0x17,
Self::KeyU => 0x18,
Self::KeyV => 0x19,
Self::KeyW => 0x1A,
Self::KeyX => 0x1B,
Self::KeyY => 0x1C,
Self::KeyZ => 0x1D,
Self::Digit1 => 0x1E,
Self::Digit2 => 0x1F,
Self::Digit3 => 0x20,
Self::Digit4 => 0x21,
Self::Digit5 => 0x22,
Self::Digit6 => 0x23,
Self::Digit7 => 0x24,
Self::Digit8 => 0x25,
Self::Digit9 => 0x26,
Self::Digit0 => 0x27,
Self::Enter => 0x28,
Self::Escape => 0x29,
Self::Backspace => 0x2A,
Self::Tab => 0x2B,
Self::Space => 0x2C,
Self::Minus => 0x2D,
Self::Equal => 0x2E,
Self::BracketLeft => 0x2F,
Self::BracketRight => 0x30,
Self::Backslash => 0x31,
Self::Semicolon => 0x33,
Self::Quote => 0x34,
Self::Backquote => 0x35,
Self::Comma => 0x36,
Self::Period => 0x37,
Self::Slash => 0x38,
Self::CapsLock => 0x39,
Self::F1 => 0x3A,
Self::F2 => 0x3B,
Self::F3 => 0x3C,
Self::F4 => 0x3D,
Self::F5 => 0x3E,
Self::F6 => 0x3F,
Self::F7 => 0x40,
Self::F8 => 0x41,
Self::F9 => 0x42,
Self::F10 => 0x43,
Self::F11 => 0x44,
Self::F12 => 0x45,
Self::PrintScreen => 0x46,
Self::ScrollLock => 0x47,
Self::Pause => 0x48,
Self::Insert => 0x49,
Self::Home => 0x4A,
Self::PageUp => 0x4B,
Self::Delete => 0x4C,
Self::End => 0x4D,
Self::PageDown => 0x4E,
Self::ArrowRight => 0x4F,
Self::ArrowLeft => 0x50,
Self::ArrowDown => 0x51,
Self::ArrowUp => 0x52,
Self::NumLock => 0x53,
Self::NumpadDivide => 0x54,
Self::NumpadMultiply => 0x55,
Self::NumpadSubtract => 0x56,
Self::NumpadAdd => 0x57,
Self::NumpadEnter => 0x58,
Self::Numpad1 => 0x59,
Self::Numpad2 => 0x5A,
Self::Numpad3 => 0x5B,
Self::Numpad4 => 0x5C,
Self::Numpad5 => 0x5D,
Self::Numpad6 => 0x5E,
Self::Numpad7 => 0x5F,
Self::Numpad8 => 0x60,
Self::Numpad9 => 0x61,
Self::Numpad0 => 0x62,
Self::NumpadDecimal => 0x63,
Self::IntlBackslash => 0x64,
Self::ContextMenu => 0x65,
Self::F13 => 0x68,
Self::F14 => 0x69,
Self::F15 => 0x6A,
Self::F16 => 0x6B,
Self::F17 => 0x6C,
Self::F18 => 0x6D,
Self::F19 => 0x6E,
Self::F20 => 0x6F,
Self::F21 => 0x70,
Self::F22 => 0x71,
Self::F23 => 0x72,
Self::F24 => 0x73,
Self::ControlLeft => 0xE0,
Self::ShiftLeft => 0xE1,
Self::AltLeft => 0xE2,
Self::MetaLeft => 0xE3,
Self::ControlRight => 0xE4,
Self::ShiftRight => 0xE5,
Self::AltRight => 0xE6,
Self::MetaRight => 0xE7,
}
}
/// Convert a wire code / USB HID usage to its canonical key.
pub const fn from_hid_usage(usage: u8) -> Option<Self> {
match usage {
0x04 => Some(Self::KeyA),
0x05 => Some(Self::KeyB),
0x06 => Some(Self::KeyC),
0x07 => Some(Self::KeyD),
0x08 => Some(Self::KeyE),
0x09 => Some(Self::KeyF),
0x0A => Some(Self::KeyG),
0x0B => Some(Self::KeyH),
0x0C => Some(Self::KeyI),
0x0D => Some(Self::KeyJ),
0x0E => Some(Self::KeyK),
0x0F => Some(Self::KeyL),
0x10 => Some(Self::KeyM),
0x11 => Some(Self::KeyN),
0x12 => Some(Self::KeyO),
0x13 => Some(Self::KeyP),
0x14 => Some(Self::KeyQ),
0x15 => Some(Self::KeyR),
0x16 => Some(Self::KeyS),
0x17 => Some(Self::KeyT),
0x18 => Some(Self::KeyU),
0x19 => Some(Self::KeyV),
0x1A => Some(Self::KeyW),
0x1B => Some(Self::KeyX),
0x1C => Some(Self::KeyY),
0x1D => Some(Self::KeyZ),
0x1E => Some(Self::Digit1),
0x1F => Some(Self::Digit2),
0x20 => Some(Self::Digit3),
0x21 => Some(Self::Digit4),
0x22 => Some(Self::Digit5),
0x23 => Some(Self::Digit6),
0x24 => Some(Self::Digit7),
0x25 => Some(Self::Digit8),
0x26 => Some(Self::Digit9),
0x27 => Some(Self::Digit0),
0x28 => Some(Self::Enter),
0x29 => Some(Self::Escape),
0x2A => Some(Self::Backspace),
0x2B => Some(Self::Tab),
0x2C => Some(Self::Space),
0x2D => Some(Self::Minus),
0x2E => Some(Self::Equal),
0x2F => Some(Self::BracketLeft),
0x30 => Some(Self::BracketRight),
0x31 => Some(Self::Backslash),
0x33 => Some(Self::Semicolon),
0x34 => Some(Self::Quote),
0x35 => Some(Self::Backquote),
0x36 => Some(Self::Comma),
0x37 => Some(Self::Period),
0x38 => Some(Self::Slash),
0x39 => Some(Self::CapsLock),
0x3A => Some(Self::F1),
0x3B => Some(Self::F2),
0x3C => Some(Self::F3),
0x3D => Some(Self::F4),
0x3E => Some(Self::F5),
0x3F => Some(Self::F6),
0x40 => Some(Self::F7),
0x41 => Some(Self::F8),
0x42 => Some(Self::F9),
0x43 => Some(Self::F10),
0x44 => Some(Self::F11),
0x45 => Some(Self::F12),
0x46 => Some(Self::PrintScreen),
0x47 => Some(Self::ScrollLock),
0x48 => Some(Self::Pause),
0x49 => Some(Self::Insert),
0x4A => Some(Self::Home),
0x4B => Some(Self::PageUp),
0x4C => Some(Self::Delete),
0x4D => Some(Self::End),
0x4E => Some(Self::PageDown),
0x4F => Some(Self::ArrowRight),
0x50 => Some(Self::ArrowLeft),
0x51 => Some(Self::ArrowDown),
0x52 => Some(Self::ArrowUp),
0x53 => Some(Self::NumLock),
0x54 => Some(Self::NumpadDivide),
0x55 => Some(Self::NumpadMultiply),
0x56 => Some(Self::NumpadSubtract),
0x57 => Some(Self::NumpadAdd),
0x58 => Some(Self::NumpadEnter),
0x59 => Some(Self::Numpad1),
0x5A => Some(Self::Numpad2),
0x5B => Some(Self::Numpad3),
0x5C => Some(Self::Numpad4),
0x5D => Some(Self::Numpad5),
0x5E => Some(Self::Numpad6),
0x5F => Some(Self::Numpad7),
0x60 => Some(Self::Numpad8),
0x61 => Some(Self::Numpad9),
0x62 => Some(Self::Numpad0),
0x63 => Some(Self::NumpadDecimal),
0x64 => Some(Self::IntlBackslash),
0x65 => Some(Self::ContextMenu),
0x68 => Some(Self::F13),
0x69 => Some(Self::F14),
0x6A => Some(Self::F15),
0x6B => Some(Self::F16),
0x6C => Some(Self::F17),
0x6D => Some(Self::F18),
0x6E => Some(Self::F19),
0x6F => Some(Self::F20),
0x70 => Some(Self::F21),
0x71 => Some(Self::F22),
0x72 => Some(Self::F23),
0x73 => Some(Self::F24),
0xE0 => Some(Self::ControlLeft),
0xE1 => Some(Self::ShiftLeft),
0xE2 => Some(Self::AltLeft),
0xE3 => Some(Self::MetaLeft),
0xE4 => Some(Self::ControlRight),
0xE5 => Some(Self::ShiftRight),
0xE6 => Some(Self::AltRight),
0xE7 => Some(Self::MetaRight),
_ => None,
}
}
pub const fn is_modifier(self) -> bool {
matches!(
self,
Self::ControlLeft
| Self::ShiftLeft
| Self::AltLeft
| Self::MetaLeft
| Self::ControlRight
| Self::ShiftRight
| Self::AltRight
| Self::MetaRight
)
}
pub const fn modifier_bit(self) -> Option<u8> {
match self {
Self::ControlLeft => Some(0x01),
Self::ShiftLeft => Some(0x02),
Self::AltLeft => Some(0x04),
Self::MetaLeft => Some(0x08),
Self::ControlRight => Some(0x10),
Self::ShiftRight => Some(0x20),
Self::AltRight => Some(0x40),
Self::MetaRight => Some(0x80),
_ => None,
}
}
}