syntax = "proto3";

package api.key;

message Key {
  enum KeyModifier {
    CTRL = 0;
    ALT = 1;
  }

  enum NamedKey {
    PageDown = 0;
    PageUp = 1;
    LeftArrow = 2;
    DownArrow = 3;
    UpArrow = 4;
    RightArrow = 5;
    Home = 6;
    End = 7;
    Backspace = 8;
    Delete = 9;
    Insert = 10;
    F1 = 11;
    F2 = 12;
    F3 = 13;
    F4 = 14;
    F5 = 15;
    F6 = 16;
    F7 = 17;
    F8 = 18;
    F9 = 19;
    F10 = 20;
    F11 = 21;
    F12 = 22;
    Tab = 23;
    Esc = 24;
  }

  enum Char {
    a = 0;
    b = 1;
    c = 2;
    d = 3;
    e = 4;
    f = 5;
    g = 6;
    h = 7;
    i = 8;
    j = 9;
    k = 10;
    l = 11;
    m = 12;
    n = 13;
    o = 14;
    p = 15;
    q = 16;
    r = 17;
    s = 18;
    t = 19;
    u = 20;
    v = 21;
    w = 22;
    x = 23;
    y = 24;
    z = 25;
    zero = 26;
    one = 27;
    two = 28;
    three = 29;
    four = 30;
    five = 31;
    six = 32;
    seven = 33;
    eight = 34;
    nine = 35;
  }

  optional KeyModifier modifier = 1;
  oneof main_key {
    NamedKey key = 2;
    Char char = 3;
  }
}