stateCLIOptions method

String? stateCLIOptions(String title, List<String> options)

Implementation

String? stateCLIOptions(String title, List<String> options) {
  stdin.echoMode = false;
  stdin.lineMode = false;
  var console = Console();
  var isRunning = true;
  var selected = 0;

  while (isRunning) {
    print('\x1B[2J\x1B[0;0H');
    output.title('Slidy CLI Interactive\n');
    output.warn(title);
    for (var i = 0; i < options.length; i++) {
      if (selected == i) {
        print(output.green(options[i]));
      } else {
        print(output.white(options[i]));
      }
    }

    print('\nUse ↑↓ (keyboard arrows)');
    print('Press \'q\' to quit.');

    var key = console.readKey();

    if (key.controlChar == ControlCharacter.arrowDown) {
      if (selected < options.length - 1) {
        selected++;
      }
    } else if (key.controlChar == ControlCharacter.arrowUp) {
      if (selected > 0) {
        selected--;
      }
    } else if (key.controlChar == ControlCharacter.enter) {
      isRunning = false;
      print('\x1B[2J\x1B[0;0H');
      return options[selected];
    } else if (key.char == 'q') {
      return null;
    }
  }
  print('\x1B[2J\x1B[0;0H');
  return null;
}