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const digits = ["0", "1", "2", "3", "4", "5", "6", "7", "8", "9"];
export default class Key {
public readonly key: string;
public readonly shift: boolean;
public readonly ctrl: boolean;
public readonly alt: boolean;
public readonly meta: boolean;
constructor({
key,
shift = false,
ctrl = false,
alt = false,
meta = false,
}: {
key: string;
shift?: boolean;
ctrl?: boolean;
alt?: boolean;
meta?: boolean;
}) {
this.key = key;
this.shift = shift;
this.ctrl = ctrl;
this.alt = alt;
this.meta = meta;
}
static fromMapKey(str: string): Key {
if (str.startsWith("<") && str.endsWith(">")) {
const inner = str.slice(1, -1);
const shift = inner.includes("S-");
let base = inner.slice(inner.lastIndexOf("-") + 1);
if (shift && base.length === 1) {
base = base.toUpperCase();
} else if (!shift && base.length === 1) {
base = base.toLowerCase();
}
return new Key({
key: base,
shift: shift,
ctrl: inner.includes("C-"),
alt: inner.includes("A-"),
meta: inner.includes("M-"),
});
}
return new Key({
key: str,
shift: str.toLowerCase() !== str,
ctrl: false,
alt: false,
meta: false,
});
}
isDigit(): boolean {
return digits.includes(this.key) && !this.ctrl && !this.alt && !this.meta;
}
equals(key: Key) {
return (
this.key === key.key &&
this.ctrl === key.ctrl &&
this.meta === key.meta &&
this.alt === key.alt &&
this.shift === key.shift
);
}
}
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