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fix(host/linux,clients/android): honor the host/device keyboard layout in keymaps

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wlroots injector: the virtual keyboard keymap now defers to the standard
XKB_DEFAULT_RULES/MODEL/LAYOUT/VARIANT/OPTIONS env vars (libxkbcommon
built-ins as fallback) instead of hardcoding evdev/pc105/us, matching the
libei path where the session compositor's own keymap applies. Android:
Keymap gains the same positional-key coverage for non-US layouts (+ tests).

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
This commit is contained in:
Enrico Bühler
2026-07-02 16:25:07 +02:00
parent 1f5a2e4920
commit 76e2a1f5a7
4 changed files with 134 additions and 20 deletions
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crates/punktfunk-host/src/inject/linux/wlr.rs
+17 -14
View File
@@ -1,9 +1,10 @@
//! Input injection through the wlroots virtual-input Wayland protocols
//! (`zwlr_virtual_pointer_manager_v1` + `zwp_virtual_keyboard_manager_v1`) — the headless-Sway
//! path. We connect as an ordinary Wayland client (the host inherits Sway's
//! `WAYLAND_DISPLAY`/`XDG_RUNTIME_DIR`), bind the two managers, upload a standard evdev/US xkb
//! keymap, and translate events into virtual pointer/keyboard requests, tracking modifier state
//! so the compositor resolves shifted keysyms correctly.
//! `WAYLAND_DISPLAY`/`XDG_RUNTIME_DIR`), bind the two managers, upload an xkb keymap for the
//! virtual keyboard (the host's layout via the standard `XKB_DEFAULT_LAYOUT` et al., defaulting
//! to evdev/US), and translate events into virtual pointer/keyboard requests, tracking modifier
//! state so the compositor resolves shifted keysyms correctly.
// Every `unsafe` block in this file carries a `// SAFETY:` proof; enforce it (unsafe-proof program).
#![deny(clippy::undocumented_unsafe_blocks)]
@@ -133,18 +134,20 @@ impl WlrootsInjector {
);
let keyboard = keyboard_mgr.create_virtual_keyboard(&seat, &qh, ());
// A standard evdev/US keymap so raw evdev keycodes resolve to the right keysyms.
// The keymap the compositor resolves our raw evdev keycodes with. Empty names defer to
// the standard `XKB_DEFAULT_RULES/MODEL/LAYOUT/VARIANT/OPTIONS` env vars, then to
// libxkbcommon's built-ins (evdev/pc105/us) — so a non-US host sets e.g.
// `XKB_DEFAULT_LAYOUT=de` and the positional wire keys render as its layout (parity with
// the libei path, where the session compositor's own keymap applies). Previously this
// hardcoded "us", which forced US characters for the OEM/umlaut keys on every layout.
let ctx = xkb::Context::new(xkb::CONTEXT_NO_FLAGS);
let keymap = xkb::Keymap::new_from_names(
&ctx,
"evdev",
"pc105",
"us",
"",
None,
xkb::KEYMAP_COMPILE_NO_FLAGS,
)
.context("compile xkb keymap")?;
let keymap =
xkb::Keymap::new_from_names(&ctx, "", "", "", "", None, xkb::KEYMAP_COMPILE_NO_FLAGS)
.context("compile xkb keymap (check XKB_DEFAULT_LAYOUT/VARIANT/RULES if set)")?;
tracing::info!(
layout = %std::env::var("XKB_DEFAULT_LAYOUT").unwrap_or_else(|_| "us (default)".into()),
"virtual keyboard keymap compiled"
);
let keymap_str = keymap.get_as_string(xkb::KEYMAP_FORMAT_TEXT_V1);
let xkb_state = xkb::State::new(&keymap);