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Use linux scancode values for KeyCodeExtScancode

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Old winit was using linux scancodes, so this should make it backward
compatible with itself.
This commit is contained in:
Kirill Chibisov
2023-05-29 13:48:12 +03:00
committed by GitHub
parent b5af6bb266
commit 035eebb19a
3 changed files with 19 additions and 12 deletions
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12
src/platform/scancode.rs
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@@ -1,10 +1,9 @@
#![cfg(any(windows_platform, macos_platform, x11_platform, wayland_platform))]
// TODO: Maybe merge this with `modifier_supplement` if the two are indeed supported on the same
// set of platforms
use crate::keyboard::KeyCode;
// TODO: Describe what this value contains for each platform
/// Additional methods for the [`KeyCode`] type that allow the user to access the platform-specific
/// scancode.
///
@@ -16,13 +15,16 @@ pub trait KeyCodeExtScancode {
///
/// ## Platform-specific
/// - **Windows:** A 16bit extended scancode
/// - **Wayland/X11**: A 32-bit X11-style keycode.
// TODO: Describe what this value contains for each platform
/// - **Wayland/X11**: A 32-bit linux scancode, which is X11/Wayland keycode subtracted by 8.
fn to_scancode(self) -> Option<u32>;
/// Constructs a `KeyCode` from a platform-specific physical key identifier.
///
/// Note that this conversion may be lossy, i.e. converting the returned `KeyCode` back
/// using `to_scancode` might not yield the original value.
///
/// ## Platform-specific
/// - **Wayland/X11**: A 32-bit linux scancode. When building from X11/Wayland keycode subtract
/// `8` to get the value you wanted.
fn from_scancode(scancode: u32) -> KeyCode;
}