/* termemu-keys.js: some key-handling code common to both drivers. */

/* ASCII values of keys 0-9. */
var numShifts = [41, 33, 64, 35, 36, 37, 94, 38, 42, 40];

var keyHexCodes = {
  init: function () {
    this[13]  = ["0d", "0d"]; // return
    this[32]  = ["20", "20"]; // space
    this[9]   = ["09", "09"]; // tab
    this[192] = ["60", "7e"]; // backtick, tilde
    this[219] = ["5b", "7b"]; // open bracket, open brace
    this[221] = ["5d", "7d"]; // close bracket, close brace
    this[220] = ["5c", "7c"]; // backslash, pipe
    this[59]  = ["3b", "3a"]; // semicolon, colon
    this[186] = ["3b", "3a"]; // semicolon, colon (Chrome)
    this[222] = ["27", "22"]; // single quote, double quote
    this[188] = ["2c", "3c"]; // comma, less than
    this[190] = ["2e", "3e"]; // period, right angle
    this[191] = ["2f", "3f"]; // slash, question mark
    this[61]  = ["3d", "2b"]; // equal, plus
    this[187] = ["3d", "2b"]; // equal, plus (Chrome)
    this[109] = ["2d", "5f"]; // subtract, underscore (maybe on numpad)
    this[173] = ["2d", "5f"]; // subtract, underscore (maybe not on numpad)
    this[189] = ["2d", "5f"]; // subtract, underscore (Chrome)
    this[8]   = ["08", "08"]; // backspace
    this[46]  = ["1b5b337e", "1b5b337e"]; // delete
    this[27]  = ["1b", "1b"]; // escape
    this[33]  = ["1b5b357e", "1b5b357e"]; // page up
    this[34]  = ["1b5b367e", "1b5b367e"]; // page down
    this.appCursor(false);
    this.appKeypad(false);
  },
  /* Multi-char control sequences!  Neat! */
  appCursor: function (on) {
    /* Aren't special keys vile? */
    if (on) {
      this[37] = ["1b4f44", "1b4f44"]; // left arror
      this[39] = ["1b4f43", "1b4f43"]; // right arrow
      this[38] = ["1b4f41", "1b4f41"]; // up arrow
      this[40] = ["1b4f42", "1b4f42"]; // down arrow
      this[35] = ["1b4f46", "1b4f46"]; // end
      this[36] = ["1b4f48", "1b4f48"]; // home
    }
    else {
      this[37] = ["1b5b44", "1b5b44"]; // left arror
      this[39] = ["1b5b43", "1b5b43"]; // right arrow
      this[38] = ["1b5b41", "1b5b41"]; // up arrow
      this[40] = ["1b5b42", "1b5b42"]; // down arrow
      this[35] = ["1b5b46", "1b5b46"]; // end
      this[36] = ["1b5b48", "1b5b48"]; // home
    }
  },
  appKeypad: function (on) {
    /* In theory, these should produce either numerals or the k[a-c][1-3]
     * sequences.  Since we can't count on the terminfo description actually
     * containing those sequences, pretend they're just arrow keys etc.
     */
    this[97]  = ["1b4f46", "1b4f46"];
    this[98]  = ["1b4f42", "1b4f42"];
    this[99]  = ["1b5b367e", "1b5b367e"];
    this[100] = ["1b4f44", "1b4f44"];
    this[101] = ["1b5b45", "1b5b45"];
    this[102] = ["1b4f43", "1b4f43"];
    this[103] = ["1b4f48", "1b4f48"];
    this[104] = ["1b4f41", "1b4f41"];
    this[105] = ["1b5b357e", "1b5b357e"];
    return;
  }
};