Function resolveKeyFromEvent

packages/app-core/src/lib/keymaps.ts:1172–1186

* Resolve the binding key from a KeyboardEvent. * * Layout-aware: when `event.key` is a single printable ASCII char it * reflects what the active keyboard layout *typed* (Colemak/Dvorak * users want `Cmd+P` to fire on whichever physical key produces `p`, * not on the QWERTY-P position). Letters

(event: KeyboardEvent)

 * `normalizeKeyName(event.key)`.
 */
function resolveKeyFromEvent(event: KeyboardEvent): string | null {
  if (isModifierKey(event.key)) return null;
  const k = event.key;
  // Skip the typed-char fast path for '+': it is the binding-string
  // separator, so emitting it would produce unparsable strings like
  // "Mod+Shift++". Fall through to physicalKeyFromCode (event.code
  // = "Equal" -> "=" for Shift+Cmd+=).
  if (k.length === 1 && k !== "+") {
    const cp = k.charCodeAt(0);
    if (cp > 0x20 && cp < 0x7f) {
      return k.toUpperCase();
    }
  }
  return physicalKeyFromCode(event.code);
}

function normalizeKeyName(key: string): string | null {
  if (!key) return null;