wizard - npm Package Compare versions

Comparing version 1.0.0 to 2.0.0

example/src/index.js

@@ -5,8 +5,6 @@ import Wizard from '../../lib';
 
-const main = async () => {
-  const wizard = new Wizard(questions);
-  const selections = await wizard.init();
+const wizard = new Wizard(questions);
+wizard.init().then(selections => {
   console.log(selections);
-};
-
-main();
+  process.exit();
+});

example/src/questions.js

@@ -9,3 +9,3 @@ export default {
   ],
-  next: {
+  then: {
     template: {
@@ -35,3 +35,3 @@ question: 'Pick a template:',
       ],
-      next: {
+      then: {
         testing: {
@@ -46,3 +46,3 @@ question: 'Which testing framework would you like to use?',
           ],
-          next: {
+          then: {
             useReact: {
@@ -49,0 +49,0 @@ question: 'Will you be using react?',

lib/components/Component.js

@@ -16,65 +16,140 @@ "use strict";
 
-function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }
+class Component {
+  constructor(styles) {
+    this.styles = styles;
+    this.ansi = _ansiEscapes.default;
+    this.colors = _chalk.default;
+    this.keys = _keys.default; // Event Handlers
 
-function _defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ("value" in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } }
+    this._onKeyHandler = null;
+    this._onKeyEnter = null;
+    this._onKeyArrowUp = null;
+    this._onKeyArrowDown = null;
+    this._onKeyArrowLeft = null;
+    this._onKeyArrowRight = null;
+    this._onKeySpace = null;
+  } // Accessors
 
-function _createClass(Constructor, protoProps, staticProps) { if (protoProps) _defineProperties(Constructor.prototype, protoProps); if (staticProps) _defineProperties(Constructor, staticProps); return Constructor; }
+  /** When the Enter key is pressed. */
 
-function _defineProperty(obj, key, value) { if (key in obj) { Object.defineProperty(obj, key, { value: value, enumerable: true, configurable: true, writable: true }); } else { obj[key] = value; } return obj; }
 
-var Component =
-/*#__PURE__*/
-function () {
-  function Component() {
-    _classCallCheck(this, Component);
+  set onKeyEnter(handler) {
+    this._onKeyEnter = handler;
+  }
+  /** When the Up arrow is pressed.  */
 
-    _defineProperty(this, "ansi", _ansiEscapes.default);
 
-    _defineProperty(this, "colors", _chalk.default);
+  set onKeyUp(handler) {
+    this._onKeyArrowUp = handler;
+  }
+  /** When the Down arrow is pressed.  */
 
-    _defineProperty(this, "keys", _keys.default);
 
-    this.handleEscape();
+  set onKeyDown(handler) {
+    this._onKeyArrowDown = handler;
   }
+  /** When the Left arrow is pressed.  */
 
-  _createClass(Component, [{
-    key: "write",
-    value: function write(text) {
-      process.stdout.write("\r".concat(text));
+
+  set onKeyLeft(handler) {
+    this._onKeyArrowLeft = handler;
+  }
+  /** When the Right arrow is pressed.  */
+
+
+  set onKeyRight(handler) {
+    this._onKeyArrow = handler;
+  }
+  /** When the Space key is pressed. */
+
+
+  set onKeySpace(handler) {
+    this._onKeySpace = handler;
+  } // Component Methods
+
+  /** Write text to screen. */
+
+
+  write(text) {
+    process.stdout.write(`\r${text}`);
+  }
+  /** Write a newline to the screen. */
+
+
+  newline() {
+    this.write('\n');
+  }
+  /** Clear a components output. */
+
+
+  clear() {
+    if (this.styles.preserveQuestion) {
+      this.write(this.ansi.cursorUp());
     }
-  }, {
-    key: "newline",
-    value: function newline() {
-      process.stdout.write('\r\n');
-    }
-  }, {
-    key: "cleanAndExit",
-    value: function cleanAndExit() {
-      process.stdout.write(_ansiEscapes.default.cursorShow);
-      process.exit();
-    } // Ensure app is killable
 
-  }, {
-    key: "handleEscape",
-    value: function handleEscape() {
-      var _this = this;
+    this.write(this.ansi.eraseDown);
+  }
+  /** Exit gracefully. */
 
-      process.stdin.on('data', function (key) {
-        switch (key) {
-          case _keys.default.KEY_ESC:
-            _this.cleanAndExit();
 
-            break;
+  cleanAndExit() {
+    this.write(this.ansi.cursorShow);
+    process.exit();
+  }
+  /** Throw error */
 
-          default:
-            break;
-        }
-      });
+
+  throw(err) {
+    throw err;
+  }
+  /**
+   * Initializes the component.
+   * Registers event listeners and prints question.
+   * @param {string} question
+   */
+
+
+  initialize(question) {
+    this.write(this.ansi.eraseLine);
+    this.write(this.styles.question.color(question));
+    this.newline();
+    this.update();
+    this._onKeyHandler = this.onKeyHandler.bind(this);
+    process.stdin.addListener('data', this._onKeyHandler);
+  }
+
+  onKeyHandler(key) {
+    switch (key) {
+      case this.keys.KEY_UP:
+        return this._onKeyArrowUp ? this._onKeyArrowUp() : null;
+
+      case this.keys.KEY_DOWN:
+        return this._onKeyArrowDown ? this._onKeyArrowDown() : null;
+
+      case this.keys.KEY_LEFT:
+        return this._onKeyArrowLeft ? this._onKeyArrowLeft() : null;
+
+      case this.keys.KEY_RIGHT:
+        return this._onKeyArrowRight ? this._onKeyArrowRight() : null;
+
+      case this.keys.KEY_SPACE:
+        return this._onKeySpace ? this._onKeySpace() : null;
+
+      case this.keys.KEY_ENTER:
+      case this.keys.KEY_RETURN:
+        process.stdin.removeListener('data', this._onKeyHandler);
+        return this._onKeyEnter ? this._onKeyEnter() : this.throw(new Error('Keypress Unhandled'));
+
+      case this.keys.CTRL_C:
+        this.cleanAndExit();
+        return null;
+
+      default:
+        return null;
     }
-  }]);
+  }
 
-  return Component;
-}();
+}
 
 var _default = Component;
 exports.default = _default;

lib/components/List.js

@@ -8,117 +8,59 @@ "use strict";
 
-var _Component2 = _interopRequireDefault(require("./Component"));
+var _Component = _interopRequireDefault(require("./Component"));
 
 function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
 
-function _typeof(obj) { if (typeof Symbol === "function" && typeof Symbol.iterator === "symbol") { _typeof = function _typeof(obj) { return typeof obj; }; } else { _typeof = function _typeof(obj) { return obj && typeof Symbol === "function" && obj.constructor === Symbol && obj !== Symbol.prototype ? "symbol" : typeof obj; }; } return _typeof(obj); }
+class List extends _Component.default {
+  constructor(question, styles) {
+    super(styles);
+    this.styles = styles;
+    this.question = question.question;
+    this.options = question.options;
+    this.chosen = 0;
+  }
 
-function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }
+  init() {
+    return new Promise(resolve => {
+      this.onKeyEnter = () => {
+        this.clear();
+        resolve(this.options[this.chosen]);
+      };
 
-function _defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ("value" in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } }
+      this.onKeyUp = () => {
+        this.chosen = this.chosen === 0 ? this.styles.list.wrapToTop ? this.options.length - 1 : 0 : this.chosen - 1;
+        this.update();
+      };
 
-function _createClass(Constructor, protoProps, staticProps) { if (protoProps) _defineProperties(Constructor.prototype, protoProps); if (staticProps) _defineProperties(Constructor, staticProps); return Constructor; }
+      this.onKeyDown = () => {
+        this.chosen = this.chosen === this.options.length - 1 ? this.styles.list.wrapToTop ? 0 : this.options.length - 1 : this.chosen + 1;
+        this.update();
+      };
 
-function _possibleConstructorReturn(self, call) { if (call && (_typeof(call) === "object" || typeof call === "function")) { return call; } return _assertThisInitialized(self); }
-
-function _assertThisInitialized(self) { if (self === void 0) { throw new ReferenceError("this hasn't been initialised - super() hasn't been called"); } return self; }
-
-function _getPrototypeOf(o) { _getPrototypeOf = Object.setPrototypeOf ? Object.getPrototypeOf : function _getPrototypeOf(o) { return o.__proto__ || Object.getPrototypeOf(o); }; return _getPrototypeOf(o); }
-
-function _inherits(subClass, superClass) { if (typeof superClass !== "function" && superClass !== null) { throw new TypeError("Super expression must either be null or a function"); } subClass.prototype = Object.create(superClass && superClass.prototype, { constructor: { value: subClass, writable: true, configurable: true } }); if (superClass) _setPrototypeOf(subClass, superClass); }
-
-function _setPrototypeOf(o, p) { _setPrototypeOf = Object.setPrototypeOf || function _setPrototypeOf(o, p) { o.__proto__ = p; return o; }; return _setPrototypeOf(o, p); }
-
-var List =
-/*#__PURE__*/
-function (_Component) {
-  _inherits(List, _Component);
-
-  function List(question, styles) {
-    var _this;
-
-    _classCallCheck(this, List);
-
-    _this = _possibleConstructorReturn(this, _getPrototypeOf(List).call(this));
-    _this.styles = styles;
-    _this.question = question.question;
-    _this.options = question.options;
-    _this.chosen = 0;
-    return _this;
+      this.initialize(this.question);
+    });
   }
 
-  _createClass(List, [{
-    key: "init",
-    value: function init() {
-      var _this2 = this;
+  update() {
+    this.options.forEach((option, index) => {
+      this.write(this.ansi.eraseLine);
+      const formatted = option.name.padStart(option.name.length + this.styles.list.paddingLeft, ' '.repeat(this.styles.list.paddingLeft));
 
-      return new Promise(function (resolve) {
-        _this2.write(_this2.styles.question.color(_this2.question));
-
-        _this2.newline();
-
-        process.stdin.on('data', function (key) {
-          var value = _this2.handleInput(key);
-
-          if (value !== null) {
-            resolve(value);
-          }
-        });
-
-        _this2.updateDisplay();
-      });
-    }
-  }, {
-    key: "updateDisplay",
-    value: function updateDisplay() {
-      var _this3 = this;
-
-      this.options.forEach(function (option, index) {
-        var formatted = option.name;
-        formatted = formatted.padStart(formatted.length + _this3.styles.list.paddingLeft, ' '.repeat(_this3.styles.list.paddingLeft));
-
-        if (index === _this3.chosen) {
-          if (_this3.styles.caret.icon) {
-            _this3.write(_this3.styles.caret.color(_this3.styles.caret.icon.padStart(_this3.styles.caret.paddingLeft + 1, ' '.repeat(_this3.styles.caret.paddingLeft))) + ' '.repeat(_this3.styles.caret.paddingRight) + _this3.styles.list.selectedColor(option.name));
-          } else {
-            _this3.write(_this3.styles.list.selectedColor(formatted));
-          }
+      if (index === this.chosen) {
+        if (this.styles.caret.icon) {
+          this.write(this.styles.caret.color(this.styles.caret.icon.padStart(this.styles.caret.paddingLeft + 1, ' '.repeat(this.styles.caret.paddingLeft))) + ' '.repeat(this.styles.caret.paddingRight) + this.styles.list.selectedColor(option.name));
         } else {
-          _this3.write(_this3.styles.list.defaultColor(formatted));
+          this.write(this.styles.list.selectedColor(formatted));
         }
+      } else {
+        this.write(this.styles.list.defaultColor(formatted));
+      }
 
-        _this3.newline();
-      });
-      this.write(this.ansi.cursorUp(this.options.length));
-    }
-  }, {
-    key: "handleInput",
-    value: function handleInput(key) {
-      switch (key) {
-        case this.keys.KEY_UP:
-          this.chosen = this.chosen === 0 ? this.styles.list.wrapToTop ? this.options.length - 1 : 0 : this.chosen - 1;
-          this.updateDisplay();
-          return null;
+      this.newline();
+    });
+    this.write(this.ansi.cursorUp(this.options.length));
+  }
 
-        case this.keys.KEY_DOWN:
-          this.chosen = this.chosen === this.options.length - 1 ? this.styles.list.wrapToTop ? 0 : this.options.length - 1 : this.chosen + 1;
-          this.updateDisplay();
-          return null;
+}
 
-        case this.keys.KEY_RETURN:
-        case this.keys.KEY_ENTER:
-          this.write(this.ansi.eraseDown);
-          process.stdin.removeAllListeners('data');
-          this.handleEscape();
-          return this.options[this.chosen];
-
-        default:
-          return null;
-      }
-    }
-  }]);
-
-  return List;
-}(_Component2.default);
-
 var _default = List;
 exports.default = _default;

lib/components/ListToggle.js

@@ -8,131 +8,74 @@ "use strict";
 
-var _Component2 = _interopRequireDefault(require("./Component"));
+var _Component = _interopRequireDefault(require("./Component"));
 
 function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
 
-function _typeof(obj) { if (typeof Symbol === "function" && typeof Symbol.iterator === "symbol") { _typeof = function _typeof(obj) { return typeof obj; }; } else { _typeof = function _typeof(obj) { return obj && typeof Symbol === "function" && obj.constructor === Symbol && obj !== Symbol.prototype ? "symbol" : typeof obj; }; } return _typeof(obj); }
+class ListToggle extends _Component.default {
+  constructor(question, styles) {
+    super(styles);
+    this.styles = styles;
+    this.question = question.question;
+    this.options = question.options;
+    this.selected = new Array(this.options.length);
+    this.chosen = 0;
+  }
 
-function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }
+  init() {
+    return new Promise(resolve => {
+      this.onKeyEnter = () => {
+        this.clear();
+        resolve({
+          value: this.selected.filter(Boolean),
+          then: this.options[0].then
+        });
+      };
 
-function _defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ("value" in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } }
+      this.onKeyUp = () => {
+        this.chosen = this.chosen === 0 ? this.styles.list.wrapToTop ? this.options.length - 1 : 0 : this.chosen - 1;
+        this.update();
+      };
 
-function _createClass(Constructor, protoProps, staticProps) { if (protoProps) _defineProperties(Constructor.prototype, protoProps); if (staticProps) _defineProperties(Constructor, staticProps); return Constructor; }
+      this.onKeyDown = () => {
+        this.chosen = this.chosen === this.options.length - 1 ? this.styles.list.wrapToTop ? 0 : this.options.length - 1 : this.chosen + 1;
+        this.update();
+      };
 
-function _possibleConstructorReturn(self, call) { if (call && (_typeof(call) === "object" || typeof call === "function")) { return call; } return _assertThisInitialized(self); }
+      this.onKeySpace = () => {
+        this.selected[this.chosen] = this.selected[this.chosen] ? null : this.options[this.chosen].value;
+      };
 
-function _assertThisInitialized(self) { if (self === void 0) { throw new ReferenceError("this hasn't been initialised - super() hasn't been called"); } return self; }
-
-function _getPrototypeOf(o) { _getPrototypeOf = Object.setPrototypeOf ? Object.getPrototypeOf : function _getPrototypeOf(o) { return o.__proto__ || Object.getPrototypeOf(o); }; return _getPrototypeOf(o); }
-
-function _inherits(subClass, superClass) { if (typeof superClass !== "function" && superClass !== null) { throw new TypeError("Super expression must either be null or a function"); } subClass.prototype = Object.create(superClass && superClass.prototype, { constructor: { value: subClass, writable: true, configurable: true } }); if (superClass) _setPrototypeOf(subClass, superClass); }
-
-function _setPrototypeOf(o, p) { _setPrototypeOf = Object.setPrototypeOf || function _setPrototypeOf(o, p) { o.__proto__ = p; return o; }; return _setPrototypeOf(o, p); }
-
-var ListToggle =
-/*#__PURE__*/
-function (_Component) {
-  _inherits(ListToggle, _Component);
-
-  function ListToggle(question, styles) {
-    var _this;
-
-    _classCallCheck(this, ListToggle);
-
-    _this = _possibleConstructorReturn(this, _getPrototypeOf(ListToggle).call(this));
-    _this.styles = styles;
-    _this.question = question.question;
-    _this.options = question.options;
-    _this.selected = new Array(_this.options.length);
-    _this.chosen = 0;
-    return _this;
+      this.initialize(this.question);
+    });
   }
 
-  _createClass(ListToggle, [{
-    key: "init",
-    value: function init() {
-      var _this2 = this;
+  update() {
+    this.options.forEach((option, index) => {
+      this.write(this.ansi.eraseLine);
+      let formatted = option.name;
+      formatted = formatted.padStart(formatted.length + this.styles.list.paddingLeft, ' '.repeat(this.styles.list.paddingLeft));
 
-      return new Promise(function (resolve) {
-        _this2.write(_this2.styles.question.color(_this2.question));
-
-        _this2.newline();
-
-        process.stdin.on('data', function (key) {
-          var value = _this2.handleInput(key);
-
-          if (value !== null) {
-            resolve(value);
-          }
-        });
-
-        _this2.updateDisplay();
-      });
-    }
-  }, {
-    key: "updateDisplay",
-    value: function updateDisplay() {
-      var _this3 = this;
-
-      this.options.forEach(function (option, index) {
-        var formatted = option.name;
-        formatted = formatted.padStart(formatted.length + _this3.styles.list.paddingLeft, ' '.repeat(_this3.styles.list.paddingLeft));
-
-        if (index === _this3.chosen) {
-          if (_this3.styles.caret.icon) {
-            _this3.write(_this3.styles.caret.color(_this3.styles.caret.icon.padStart(_this3.styles.caret.paddingLeft + _this3.styles.caret.paddingLeft, ' '.repeat(_this3.styles.caret.paddingLeft))) + ' '.repeat(_this3.styles.caret.paddingRight) + _this3.styles.list.selectedColor(option.name));
-          } else {
-            _this3.write(_this3.styles.list.selectedColor(formatted));
-          }
-        } else if (_this3.selected[index]) {
-          if (_this3.styles.list.toggle.icon) {
-            _this3.write(_this3.styles.list.toggle.color(_this3.styles.list.toggle.icon.padStart(_this3.styles.list.toggle.paddingLeft + 1, ' '.repeat(_this3.styles.list.toggle.paddingLeft))) + ' '.repeat(_this3.styles.list.toggle.paddingRight) + _this3.styles.list.toggledColor(option.name));
-          } else {
-            _this3.write(_this3.styles.list.toggledColor(formatted));
-          }
+      if (index === this.chosen) {
+        if (this.styles.caret.icon) {
+          this.write(this.styles.caret.color(this.styles.caret.icon.padStart(this.styles.caret.paddingLeft + this.styles.caret.paddingLeft, ' '.repeat(this.styles.caret.paddingLeft))) + ' '.repeat(this.styles.caret.paddingRight) + this.styles.list.selectedColor(option.name));
         } else {
-          _this3.write(_this3.styles.list.defaultColor(formatted));
+          this.write(this.styles.list.selectedColor(formatted));
         }
+      } else if (this.selected[index]) {
+        if (this.styles.list.toggle.icon) {
+          this.write(this.styles.list.toggle.color(this.styles.list.toggle.icon.padStart(this.styles.list.toggle.paddingLeft + 1, ' '.repeat(this.styles.list.toggle.paddingLeft))) + ' '.repeat(this.styles.list.toggle.paddingRight) + this.styles.list.toggledColor(option.name));
+        } else {
+          this.write(this.styles.list.toggledColor(formatted));
+        }
+      } else {
+        this.write(this.styles.list.defaultColor(formatted));
+      }
 
-        _this3.newline();
-      });
-      this.write(this.ansi.cursorUp(this.options.length));
-    }
-  }, {
-    key: "handleInput",
-    value: function handleInput(key) {
-      switch (key) {
-        case this.keys.KEY_UP:
-          this.chosen = this.chosen === 0 ? this.styles.list.wrapToTop ? this.options.length - 1 : 0 : this.chosen - 1;
-          this.updateDisplay();
-          return null;
+      this.newline();
+    });
+    this.write(this.ansi.cursorUp(this.options.length));
+  }
 
-        case this.keys.KEY_DOWN:
-          this.chosen = this.chosen === this.options.length - 1 ? this.styles.list.wrapToTop ? 0 : this.options.length - 1 : this.chosen + 1;
-          this.updateDisplay();
-          return null;
+}
 
-        case this.keys.KEY_SPACE:
-          this.selected[this.chosen] = this.selected[this.chosen] ? null : this.options[this.chosen].value;
-          return null;
-
-        case this.keys.KEY_RETURN:
-        case this.keys.KEY_ENTER:
-          this.write(this.ansi.eraseDown);
-          process.stdin.removeAllListeners('data');
-          this.handleEscape();
-          return {
-            value: this.selected.filter(Boolean),
-            then: this.options[0].then
-          };
-
-        default:
-          return null;
-      }
-    }
-  }]);
-
-  return ListToggle;
-}(_Component2.default);
-
 var _default = ListToggle;
 exports.default = _default;

lib/components/Wizard.js

@@ -8,3 +8,3 @@ "use strict";
 
-var _Component2 = _interopRequireDefault(require("./Component"));
+var _Component = _interopRequireDefault(require("./Component"));
 
@@ -17,47 +17,16 @@ var _List = _interopRequireDefault(require("./List"));
 
-function _typeof(obj) { if (typeof Symbol === "function" && typeof Symbol.iterator === "symbol") { _typeof = function _typeof(obj) { return typeof obj; }; } else { _typeof = function _typeof(obj) { return obj && typeof Symbol === "function" && obj.constructor === Symbol && obj !== Symbol.prototype ? "symbol" : typeof obj; }; } return _typeof(obj); }
-
-function asyncGeneratorStep(gen, resolve, reject, _next, _throw, key, arg) { try { var info = gen[key](arg); var value = info.value; } catch (error) { reject(error); return; } if (info.done) { resolve(value); } else { Promise.resolve(value).then(_next, _throw); } }
-
-function _asyncToGenerator(fn) { return function () { var self = this, args = arguments; return new Promise(function (resolve, reject) { var gen = fn.apply(self, args); function _next(value) { asyncGeneratorStep(gen, resolve, reject, _next, _throw, "next", value); } function _throw(err) { asyncGeneratorStep(gen, resolve, reject, _next, _throw, "throw", err); } _next(undefined); }); }; }
-
-function _objectSpread(target) { for (var i = 1; i < arguments.length; i++) { var source = arguments[i] != null ? arguments[i] : {}; var ownKeys = Object.keys(source); if (typeof Object.getOwnPropertySymbols === 'function') { ownKeys = ownKeys.concat(Object.getOwnPropertySymbols(source).filter(function (sym) { return Object.getOwnPropertyDescriptor(source, sym).enumerable; })); } ownKeys.forEach(function (key) { _defineProperty(target, key, source[key]); }); } return target; }
-
-function _defineProperty(obj, key, value) { if (key in obj) { Object.defineProperty(obj, key, { value: value, enumerable: true, configurable: true, writable: true }); } else { obj[key] = value; } return obj; }
-
-function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }
-
-function _defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ("value" in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } }
-
-function _createClass(Constructor, protoProps, staticProps) { if (protoProps) _defineProperties(Constructor.prototype, protoProps); if (staticProps) _defineProperties(Constructor, staticProps); return Constructor; }
-
-function _possibleConstructorReturn(self, call) { if (call && (_typeof(call) === "object" || typeof call === "function")) { return call; } return _assertThisInitialized(self); }
-
-function _assertThisInitialized(self) { if (self === void 0) { throw new ReferenceError("this hasn't been initialised - super() hasn't been called"); } return self; }
-
-function _getPrototypeOf(o) { _getPrototypeOf = Object.setPrototypeOf ? Object.getPrototypeOf : function _getPrototypeOf(o) { return o.__proto__ || Object.getPrototypeOf(o); }; return _getPrototypeOf(o); }
-
-function _inherits(subClass, superClass) { if (typeof superClass !== "function" && superClass !== null) { throw new TypeError("Super expression must either be null or a function"); } subClass.prototype = Object.create(superClass && superClass.prototype, { constructor: { value: subClass, writable: true, configurable: true } }); if (superClass) _setPrototypeOf(subClass, superClass); }
-
-function _setPrototypeOf(o, p) { _setPrototypeOf = Object.setPrototypeOf || function _setPrototypeOf(o, p) { o.__proto__ = p; return o; }; return _setPrototypeOf(o, p); }
-
-var Wizard =
-/*#__PURE__*/
-function (_Component) {
-  _inherits(Wizard, _Component);
-
-  function Wizard(steps, styles, components) {
-    var _this;
-
-    _classCallCheck(this, Wizard);
-
-    _this = _possibleConstructorReturn(this, _getPrototypeOf(Wizard).call(this));
-    _this.components = _objectSpread({
-      list: _List.default,
-      listToggle: _ListToggle.default
-    }, components);
-    var styleDefaults = {
+// TODO - Add tests
+class Wizard extends _Component.default {
+  constructor(steps, styles, components) {
+    super(styles);
+    const styleDefaults = {
+      preserveAnswer: true,
+      question: {
+        color: this.colors.white,
+        prefix: '',
+        paddingLeft: 0
+      },
       caret: {
         icon: '❯',
-        color: _this.colors.white,
+        color: this.colors.white,
         paddingRight: 1,
@@ -68,133 +37,90 @@ paddingLeft: 0
         wrapToTop: false,
-        defaultColor: _this.colors.gray,
-        selectedColor: _this.colors.white,
-        toggledColor: _this.colors.red,
-        preserveAnswer: true,
+        defaultColor: this.colors.gray,
+        selectedColor: this.colors.white,
+        toggledColor: this.colors.red,
         paddingLeft: 2,
         toggle: {
           icon: '*',
-          color: _this.colors.red,
+          color: this.colors.red,
           paddingRight: 1,
           paddingLeft: 0
         }
-      },
-      question: {
-        color: _this.colors.white,
-        prefix: '',
-        paddingLeft: 0
       }
     };
-    _this.styles = _objectSpread({}, styleDefaults, styles);
-    _this.steps = steps;
-    _this.selections = {};
-    return _this;
+    this.components = {
+      list: _List.default,
+      listToggle: _ListToggle.default,
+      ...components
+    };
+    this.styles = { ...styleDefaults,
+      ...styles
+    };
+    this.steps = steps;
+    this.selections = {};
   }
 
-  _createClass(Wizard, [{
-    key: "init",
-    value: function init() {
-      process.stdin.setRawMode(true);
-      process.stdin.resume();
-      process.stdin.setEncoding('utf8');
-      this.write(this.ansi.cursorHide);
-      this.handleEscape();
-      return this.traverse(this.steps);
-    }
-  }, {
-    key: "traverse",
-    value: function traverse(section) {
-      var _this2 = this;
+  async init() {
+    process.stdin.setRawMode(true);
+    process.stdin.resume();
+    process.stdin.setEncoding('utf8');
+    this.write(this.ansi.cursorHide);
+    const selections = await this.traverse(this.steps);
+    return selections;
+  }
 
-      return new Promise(
-      /*#__PURE__*/
-      function () {
-        var _ref = _asyncToGenerator(
-        /*#__PURE__*/
-        regeneratorRuntime.mark(function _callee(resolve, reject) {
-          var ComponentType, component, response;
-          return regeneratorRuntime.wrap(function _callee$(_context) {
-            while (1) {
-              switch (_context.prev = _context.next) {
-                case 0:
-                  if (!_this2.validateSection(section)) {
-                    _this2.write('Error in Configuration');
+  async traverse(section) {
+    try {
+      return new Promise(async (resolve, reject) => {
+        if (!this.validateSection(section)) {
+          this.cleanAndExit();
+          throw new Error('Invalid configuration');
+        }
 
-                    _this2.cleanAndExit();
-                  }
+        const ComponentType = this.components[section.type];
 
-                  ComponentType = _this2.components[section.type];
+        if (ComponentType) {
+          const component = new ComponentType(section, this.styles);
+          const response = await component.init();
+          this.selections[section.id] = response.value;
 
-                  if (!ComponentType) {
-                    _context.next = 21;
-                    break;
-                  }
+          if (section.then && section.then[response.then]) {
+            resolve((await this.traverse(section.then[response.then])));
+            return null;
+          }
 
-                  component = new ComponentType(section, _this2.styles);
-                  _context.next = 6;
-                  return component.init();
+          if (!response.then) {
+            this.write(this.ansi.cursorShow);
+            resolve(this.selections);
+            return null;
+          }
 
-                case 6:
-                  response = _context.sent;
-                  _this2.selections[section.id] = response.value;
+          if (!section.then) {
+            this.write(this.ansi.cursorShow);
+            reject(new Error('Invalid configuration'));
+            return null;
+          }
 
-                  if (response.then) {
-                    _context.next = 12;
-                    break;
-                  }
+          this.write(this.ansi.cursorShow);
+          reject(new Error('An unknown error occured'));
+          return null;
+        }
 
-                  _this2.write(_this2.ansi.cursorShow);
+        this.write(this.ansi.cursorShow);
+        reject(new Error('Invalid configuration'));
+        return null;
+      });
+    } catch (err) {
+      this.write(this.colors.red(err));
+      this.cleanAndExit();
+      return null;
+    }
+  }
 
-                  resolve(_this2.selections);
-                  return _context.abrupt("return", null);
+  validateSection(section) {
+    return (section.question || section.options || section.id || section.type) && true;
+  }
 
-                case 12:
-                  if (!section.next[response.then]) {
-                    _context.next = 18;
-                    break;
-                  }
+}
 
-                  _context.t0 = resolve;
-                  _context.next = 16;
-                  return _this2.traverse(section.next[response.then]);
-
-                case 16:
-                  _context.t1 = _context.sent;
-                  (0, _context.t0)(_context.t1);
-
-                case 18:
-                  _this2.write(_this2.ansi.cursorShow);
-
-                  reject();
-                  return _context.abrupt("return", null);
-
-                case 21:
-                  _this2.write(_this2.ansi.cursorShow);
-
-                  reject();
-                  return _context.abrupt("return", null);
-
-                case 24:
-                case "end":
-                  return _context.stop();
-              }
-            }
-          }, _callee, this);
-        }));
-
-        return function (_x, _x2) {
-          return _ref.apply(this, arguments);
-        };
-      }());
-    }
-  }, {
-    key: "validateSection",
-    value: function validateSection(section) {
-      return (section.question || section.options || section.id || section.type) && true;
-    }
-  }]);
-
-  return Wizard;
-}(_Component2.default);
-
 var _default = Wizard;
 exports.default = _default;

lib/constants/keys.js

@@ -7,13 +7,13 @@ "use strict";
 exports.default = void 0;
-var ESC = "\x1B";
+const ESC = '\u001B';
 var _default = {
-  KEY_UP: "".concat(ESC, "[A"),
-  KEY_DOWN: "".concat(ESC, "[B"),
-  KEY_RIGHT: "".concat(ESC, "[C"),
-  KEY_LEFT: "".concat(ESC, "[D"),
-  KEY_ENTER: "\u2324",
-  KEY_RETURN: "\r",
-  KEY_SPACE: " ",
-  KEY_ESC: "\x03"
+  KEY_UP: `${ESC}[A`,
+  KEY_DOWN: `${ESC}[B`,
+  KEY_RIGHT: `${ESC}[C`,
+  KEY_LEFT: `${ESC}[D`,
+  KEY_ENTER: '\u2324',
+  KEY_RETURN: '\u000D',
+  KEY_SPACE: '\u0020',
+  CTRL_C: '\u0003'
 };
 exports.default = _default;

lib/index.js

@@ -8,3 +8,3 @@ "use strict";
   enumerable: true,
-  get: function get() {
+  get: function () {
     return _Component.default;
@@ -15,4 +15,2 @@ }
 
-require("@babel/polyfill");
-
 var _Wizard = _interopRequireDefault(require("./components/Wizard"));
@@ -19,0 +17,0 @@

package.json

 {
   "name": "wizard",
-  "version": "1.0.0",
+  "version": "2.0.0",
   "description": "Wizard is a highly configurable library for building complex CLI based installation/setup wizards",
   "main": "lib/index.js",
   "scripts": {
-    "start": "babel src -d lib -w",
+    "start": "npm run build && npm run build:example && node example/build",
+    "watch": "babel src -d lib -w",
     "build": "babel src -d lib",
-    "build:demo": "babel example/src -d build",
+    "watch:example": "babel example/src -d example/build -w",
+    "build:example": "babel example/src -d example/build",
     "precommit": "lint-staged",
@@ -31,8 +33,6 @@ "prepare": "npm run build"
     "@babel/core": "^7.0.0",
-    "@babel/plugin-proposal-class-properties": "^7.0.0",
     "@babel/preset-env": "^7.0.0",
-    "babel-eslint": "^9.0.0",
     "eslint": "^5.5.0",
     "eslint-config-airbnb-base": "^13.1.0",
-    "eslint-plugin-import": "^2.14.0",
+    "eslint-config-prettier": "^3.4.0",
     "husky": "^0.14.3",
@@ -43,3 +43,2 @@ "lint-staged": "^7.2.2",
   "dependencies": {
-    "@babel/polyfill": "^7.0.0",
     "ansi-escapes": "^3.1.0",
@@ -46,0 +45,0 @@ "chalk": "^2.4.1"

README.md

@@ -21,9 +21,7 @@ <div align="center">
 
-const main = async () => {
-  const wizard = new Wizard(questions);
-  const selections = await wizard.init();
+const wizard = new Wizard(questions);
+wizard.init().then(selections => {
   console.log(selections);
-};
-
-main();
+  process.exit();
+});
 ```
@@ -56,4 +54,4 @@
 - **question** (string) Your question
-- **id** (string) The variable name that the answer will be stored under.
-- **type** (string) The type of input asociated with this question (See _Input types_).
+- **id** (string) The key that the answer will be stored under.
+- **type** (string) The input component type (See _Input types_).
 
@@ -72,25 +70,31 @@ Depending on the input type, you may be required to have:
 ```
-question: 'My question'
-id: 'my-question',
-type: 'list',
-options: [
-  { name: 'Answer 1', value: 'answer-1', then: 'question2' },
-  { name: 'Answer 2', value: 'answer-2', then: 'question3' },
-],
-then: {
-  question2: {
-    question: 'Question 2',
-    id: 'question-2',
-    type: 'text',
-  },
-  question3: {
-    question: 'Question 3',
-    id: 'question-3',
-    type: 'list',
-    options: [
-      { name: 'Answer 1, value: 'answer-1' },
-      { name: 'Answer 2, value: 'answer-2' },
-      { name: 'Answer 3, value: 'answer-3' },
-      { name: 'Answer 4, value: 'answer-4' },
-    ]
+{
+  question: 'My question',
+  id: 'my-question',
+  type: 'list',
+  options: [
+    { name: 'Answer 1', value: 'answer-1', then: 'question2' },
+    { name: 'Answer 2', value: 'answer-2', then: 'question3' },
+  ],
+  then: {
+    question2: {
+      question: 'Question 2',
+      id: 'question-2',
+      type: 'list',
+      options: [
+        { name: 'Answer 1', value: 'answer-1' },
+        { name: 'Answer 2', value: 'answer-2' },
+      ]
+    },
+    question3: {
+      question: 'Question 3',
+      id: 'question-3',
+      type: 'list',
+      options: [
+        { name: 'Answer 1', value: 'answer-1' },
+        { name: 'Answer 2', value: 'answer-2' },
+        { name: 'Answer 3', value: 'answer-3' },
+        { name: 'Answer 4', value: 'answer-4' },
+      ]
+    }
   }
@@ -106,2 +110,8 @@ }
 {
+  preserveAnswer: bool - Preserve the previous question when finished
+  question: {
+    color: function - The color of the question
+    prefex: string - Question text prefix
+    paddingLeft: int - Left padding for question
+  }
   caret : {
@@ -112,3 +122,3 @@ icon: string - The character representing the caret
     paddingLeft: int - Left padding for the caret
-  },
+  }
   list: {
@@ -119,3 +129,2 @@ wrapToTop: bool - Whether the caret wraps to top
     toggledColor: function - The color of toggled items
-    preserveAnswer: bool - Whether the previous questions and answers are printed
     paddingLeft: int - Left padding for the whole list
@@ -148,40 +157,32 @@ toggle: {
 
-### Custom Components
+## Custom Inputs
 
-You can make your very own personalized inputs if you can't achieve what you wish through styling. A `Component` class is made available through: `import { Component } from 'wizard` that allows you to create and use your own inputs.
+You can make your very own personalized inputs if the ones provided don't suit your needs. A `Component` class is available by importing it -  `import { Component } from 'wizard`. It provides a number of methods and events to extend wizard however you wish.
 
-Each Input must have an `init` method.
+Each Input must have an `init` and an `update` method.
 
-- **init** A method that starts your input - This must be a promise!
+- **init()** Starts your input component - This is a promise that will return the users selected or provided input.
+- **update()** Repaints the screen. Leave empty if making a simple input.
 
 To create a basic component:
 
-```
+```javascript
 import { Component } from 'wizard';
 
 class MyComponent extends Component {
+  constructor() {
+    super();
+  }
+
   init() {
     return new Promise(resolve => {
-      this.write('Welcome to my component!');
-      this.newline();
+      this.onKeySpace = () => {
+        this.write('Space Pressed!');
+      }
 
-      process.stdin.on('data', key => {
-        const value = this.handleInput(key);
-        if (value !== null) {
-          resolve(value);
-        }
-      });
+      this.initialize('My new input!');
     });
   }
 
-  handleInput(key) {
-    switch(key) {
-      this.keys.KEY_SPACE:
-        this.write(this.colors.red('Space pressed'));
-	this.newline();
-	return 'some value';
-      default:
-        return null;
-    }
-  }
+  update() {}
 }
@@ -209,2 +210,48 @@ ```
 
-For coloring, we make the `chalk` library useful by way of `this.color`. Check out the library here: https://github.com/chalk/chalk
+### Methods
+
+The `Component` class provides a number of methods to use when creating your input.
+
+#### `initialize(question)` Initialize the component.
+
+- **question** (string) The questions text.
+
+#### `write(text)` Write string to screen.
+
+- **text** (string) Text to write to the screen.
+
+#### `newline()` Write a newline to the screen.
+
+#### `clear()` Clear the components output.
+
+#### `cleanAndExit()` Restore the cursor and gracefully exit.
+
+
+### Events
+
+A number of `keyPress` events can be handled. The only manditory handler is for `onKeyEnter`. This must resolve the component and clear the screen for the next question. The following event handlers are available:
+
+- **onKeyEnter** 
+
+- **onKeyUp**
+
+- **onKeyDown**
+
+- **onKeyLeft**
+
+- **onKeyRight**
+
+- **onKeySpace**
+
+Example:
+
+```javascript
+this.onKeyEnter = () => {
+  this.clear();
+  resolve('test');
+}
+```
+
+---
+
+We use the `chalk` library for coloring, and `ansi-escapes` for cursor manipulation. Access them through `this.color` and `this.ansi` respectively.

src/components/Component.js

@@ -7,12 +7,55 @@ import ansiEscapes from 'ansi-escapes';
 class Component {
-  constructor() {
-    this.handleEscape();
+  constructor(styles) {
+    this.styles = styles;
+
+    this.ansi = ansiEscapes;
+    this.colors = chalk;
+    this.keys = keys;
+
+    // Event Handlers
+    this._onKeyHandler = null;
+
+    this._onKeyEnter = null;
+    this._onKeyArrowUp = null;
+    this._onKeyArrowDown = null;
+    this._onKeyArrowLeft = null;
+    this._onKeyArrowRight = null;
+    this._onKeySpace = null;
   }
 
-  ansi = ansiEscapes;
+  // Accessors
 
-  colors = chalk;
+  /** When the Enter key is pressed. */
+  set onKeyEnter(handler) {
+    this._onKeyEnter = handler;
+  }
 
-  keys = keys;
+  /** When the Up arrow is pressed.  */
+  set onKeyUp(handler) {
+    this._onKeyArrowUp = handler;
+  }
 
+  /** When the Down arrow is pressed.  */
+  set onKeyDown(handler) {
+    this._onKeyArrowDown = handler;
+  }
+
+  /** When the Left arrow is pressed.  */
+  set onKeyLeft(handler) {
+    this._onKeyArrowLeft = handler;
+  }
+
+  /** When the Right arrow is pressed.  */
+  set onKeyRight(handler) {
+    this._onKeyArrow = handler;
+  }
+
+  /** When the Space key is pressed. */
+  set onKeySpace(handler) {
+    this._onKeySpace = handler;
+  }
+
+  // Component Methods
+
+  /** Write text to screen. */
   write(text) {
@@ -22,25 +65,68 @@ process.stdout.write(`\r${text}`);
 
+  /** Write a newline to the screen. */
   newline() {
-    process.stdout.write('\r\n');
+    this.write('\n');
   }
 
+  /** Clear a components output. */
+  clear() {
+    if (this.styles.preserveQuestion) {
+      this.write(this.ansi.cursorUp());
+    }
+    this.write(this.ansi.eraseDown);
+  }
+
+  /** Exit gracefully. */
   cleanAndExit() {
-    process.stdout.write(ansiEscapes.cursorShow);
+    this.write(this.ansi.cursorShow);
     process.exit();
   }
 
-  // Ensure app is killable
-  handleEscape() {
-    process.stdin.on('data', key => {
-      switch (key) {
-        case keys.KEY_ESC:
-          this.cleanAndExit();
-          break;
-        default:
-          break;
-      }
-    });
+  /** Throw error */
+  throw(err) {
+    throw err;
   }
+
+  /**
+   * Initializes the component.
+   * Registers event listeners and prints question.
+   * @param {string} question
+   */
+  initialize(question) {
+    this.write(this.ansi.eraseLine);
+    this.write(this.styles.question.color(question));
+    this.newline();
+    this.update();
+
+    this._onKeyHandler = this.onKeyHandler.bind(this);
+    process.stdin.addListener('data', this._onKeyHandler);
+  }
+
+  onKeyHandler(key) {
+    switch (key) {
+      case this.keys.KEY_UP:
+        return this._onKeyArrowUp ? this._onKeyArrowUp() : null;
+      case this.keys.KEY_DOWN:
+        return this._onKeyArrowDown ? this._onKeyArrowDown() : null;
+      case this.keys.KEY_LEFT:
+        return this._onKeyArrowLeft ? this._onKeyArrowLeft() : null;
+      case this.keys.KEY_RIGHT:
+        return this._onKeyArrowRight ? this._onKeyArrowRight() : null;
+      case this.keys.KEY_SPACE:
+        return this._onKeySpace ? this._onKeySpace() : null;
+      case this.keys.KEY_ENTER:
+      case this.keys.KEY_RETURN:
+        process.stdin.removeListener('data', this._onKeyHandler);
+        return this._onKeyEnter
+          ? this._onKeyEnter()
+          : this.throw(new Error('Keypress Unhandled'));
+      case this.keys.CTRL_C:
+        this.cleanAndExit();
+        return null;
+      default:
+        return null;
+    }
+  }
 }
 
 export default Component;

src/components/List.js

@@ -5,3 +5,3 @@ import Component from './Component';
   constructor(question, styles) {
-    super();
+    super(styles);
 
@@ -17,21 +17,37 @@ this.styles = styles;
     return new Promise(resolve => {
-      this.write(this.styles.question.color(this.question));
-      this.newline();
+      this.onKeyEnter = () => {
+        this.clear();
+        resolve(this.options[this.chosen]);
+      };
 
-      process.stdin.on('data', key => {
-        const value = this.handleInput(key);
-        if (value !== null) {
-          resolve(value);
-        }
-      });
+      this.onKeyUp = () => {
+        this.chosen =
+          this.chosen === 0
+            ? this.styles.list.wrapToTop
+              ? this.options.length - 1
+              : 0
+            : this.chosen - 1;
+        this.update();
+      };
 
-      this.updateDisplay();
+      this.onKeyDown = () => {
+        this.chosen =
+          this.chosen === this.options.length - 1
+            ? this.styles.list.wrapToTop
+              ? 0
+              : this.options.length - 1
+            : this.chosen + 1;
+        this.update();
+      };
+
+      this.initialize(this.question);
     });
   }
 
-  updateDisplay() {
+  update() {
     this.options.forEach((option, index) => {
-      let formatted = option.name;
-      formatted = formatted.padStart(
-        formatted.length + this.styles.list.paddingLeft,
+      this.write(this.ansi.eraseLine);
+
+      const formatted = option.name.padStart(
+        option.name.length + this.styles.list.paddingLeft,
         ' '.repeat(this.styles.list.paddingLeft),
@@ -58,41 +74,8 @@ );
       }
-
       this.newline();
     });
-
     this.write(this.ansi.cursorUp(this.options.length));
   }
-
-  handleInput(key) {
-    switch (key) {
-      case this.keys.KEY_UP:
-        this.chosen =
-          this.chosen === 0
-            ? this.styles.list.wrapToTop
-              ? this.options.length - 1
-              : 0
-            : this.chosen - 1;
-        this.updateDisplay();
-        return null;
-      case this.keys.KEY_DOWN:
-        this.chosen =
-          this.chosen === this.options.length - 1
-            ? this.styles.list.wrapToTop
-              ? 0
-              : this.options.length - 1
-            : this.chosen + 1;
-        this.updateDisplay();
-        return null;
-      case this.keys.KEY_RETURN:
-      case this.keys.KEY_ENTER:
-        this.write(this.ansi.eraseDown);
-        process.stdin.removeAllListeners('data');
-        this.handleEscape();
-        return this.options[this.chosen];
-      default:
-        return null;
-    }
-  }
 }
 
 export default List;

src/components/ListToggle.js

@@ -5,3 +5,3 @@ import Component from './Component';
   constructor(question, styles) {
-    super();
+    super(styles);
 
@@ -18,18 +18,44 @@ this.styles = styles;
     return new Promise(resolve => {
-      this.write(this.styles.question.color(this.question));
-      this.newline();
+      this.onKeyEnter = () => {
+        this.clear();
+        resolve({
+          value: this.selected.filter(Boolean),
+          then: this.options[0].then,
+        });
+      };
 
-      process.stdin.on('data', key => {
-        const value = this.handleInput(key);
-        if (value !== null) {
-          resolve(value);
-        }
-      });
+      this.onKeyUp = () => {
+        this.chosen =
+          this.chosen === 0
+            ? this.styles.list.wrapToTop
+              ? this.options.length - 1
+              : 0
+            : this.chosen - 1;
+        this.update();
+      };
 
-      this.updateDisplay();
+      this.onKeyDown = () => {
+        this.chosen =
+          this.chosen === this.options.length - 1
+            ? this.styles.list.wrapToTop
+              ? 0
+              : this.options.length - 1
+            : this.chosen + 1;
+        this.update();
+      };
+
+      this.onKeySpace = () => {
+        this.selected[this.chosen] = this.selected[this.chosen]
+          ? null
+          : this.options[this.chosen].value;
+      };
+
+      this.initialize(this.question);
     });
   }
 
-  updateDisplay() {
+  update() {
     this.options.forEach((option, index) => {
+      this.write(this.ansi.eraseLine);
+
       let formatted = option.name;
@@ -74,49 +100,8 @@ formatted = formatted.padStart(
       }
-
       this.newline();
     });
-
     this.write(this.ansi.cursorUp(this.options.length));
   }
-
-  handleInput(key) {
-    switch (key) {
-      case this.keys.KEY_UP:
-        this.chosen =
-          this.chosen === 0
-            ? this.styles.list.wrapToTop
-              ? this.options.length - 1
-              : 0
-            : this.chosen - 1;
-        this.updateDisplay();
-        return null;
-      case this.keys.KEY_DOWN:
-        this.chosen =
-          this.chosen === this.options.length - 1
-            ? this.styles.list.wrapToTop
-              ? 0
-              : this.options.length - 1
-            : this.chosen + 1;
-        this.updateDisplay();
-        return null;
-      case this.keys.KEY_SPACE:
-        this.selected[this.chosen] = this.selected[this.chosen]
-          ? null
-          : this.options[this.chosen].value;
-        return null;
-      case this.keys.KEY_RETURN:
-      case this.keys.KEY_ENTER:
-        this.write(this.ansi.eraseDown);
-        process.stdin.removeAllListeners('data');
-        this.handleEscape();
-        return {
-          value: this.selected.filter(Boolean),
-          then: this.options[0].then,
-        };
-      default:
-        return null;
-    }
-  }
 }
 
 export default ListToggle;

src/components/Wizard.js

@@ -0,1 +1,3 @@
+// TODO - Add tests
+
 import Component from './Component';
@@ -8,11 +10,11 @@
   constructor(steps, styles, components) {
-    super();
+    super(styles);
 
-    this.components = {
-      list,
-      listToggle,
-      ...components,
-    };
-
     const styleDefaults = {
+      preserveAnswer: true,
+      question: {
+        color: this.colors.white,
+        prefix: '',
+        paddingLeft: 0,
+      },
       caret: {
@@ -29,3 +31,2 @@ icon: '❯',
         toggledColor: this.colors.red,
-        preserveAnswer: true,
         paddingLeft: 2,
@@ -39,5 +40,10 @@ toggle: {
       },
-      question: { color: this.colors.white, prefix: '', paddingLeft: 0 },
     };
 
+    this.components = {
+      list,
+      listToggle,
+      ...components,
+    };
+
     this.styles = {
@@ -52,3 +58,3 @@ ...styleDefaults,
 
-  init() {
+  async init() {
     process.stdin.setRawMode(true);
@@ -59,38 +65,47 @@ process.stdin.resume();
 
-    this.handleEscape();
+    const selections = await this.traverse(this.steps);
 
-    return this.traverse(this.steps);
+    return selections;
   }
 
-  traverse(section) {
-    return new Promise(async (resolve, reject) => {
-      if (!this.validateSection(section)) {
-        this.write('Error in Configuration');
-        this.cleanAndExit();
-      }
+  async traverse(section) {
+    try {
+      return new Promise(async (resolve, reject) => {
+        if (!this.validateSection(section)) {
+          this.cleanAndExit();
+          throw new Error('Invalid configuration');
+        }
+        const ComponentType = this.components[section.type];
+        if (ComponentType) {
+          const component = new ComponentType(section, this.styles);
+          const response = await component.init();
+          this.selections[section.id] = response.value;
 
-      const ComponentType = this.components[section.type];
-      if (ComponentType) {
-        const component = new ComponentType(section, this.styles);
-        const response = await component.init();
-        this.selections[section.id] = response.value;
-
-        if (!response.then) {
+          if (section.then && section.then[response.then]) {
+            resolve(await this.traverse(section.then[response.then]));
+            return null;
+          }
+          if (!response.then) {
+            this.write(this.ansi.cursorShow);
+            resolve(this.selections);
+            return null;
+          }
+          if (!section.then) {
+            this.write(this.ansi.cursorShow);
+            reject(new Error('Invalid configuration'));
+            return null;
+          }
           this.write(this.ansi.cursorShow);
-          resolve(this.selections);
+          reject(new Error('An unknown error occured'));
           return null;
         }
-        if (section.next[response.then]) {
-          resolve(await this.traverse(section.next[response.then]));
-        }
-
         this.write(this.ansi.cursorShow);
-        reject();
+        reject(new Error('Invalid configuration'));
         return null;
-      }
-
-      this.write(this.ansi.cursorShow);
-      reject();
+      });
+    } catch (err) {
+      this.write(this.colors.red(err));
+      this.cleanAndExit();
       return null;
-    });
+    }
   }
@@ -97,0 +112,0 @@

src/constants/keys.js

@@ -11,3 +11,3 @@ const ESC = '\u001B';
   KEY_SPACE: '\u0020',
-  KEY_ESC: '\u0003',
+  CTRL_C: '\u0003',
 };

src/index.js

@@ -1,3 +0,1 @@
-import '@babel/polyfill';
-
 import Wizard from './components/Wizard';
@@ -4,0 +2,0 @@ import Component from './components/Component';

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Improved metrics

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decreased by-33.33%

Dev dependency count

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Number of lines in readme file

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Dependency changes

• - Removed@babel/polyfill@^7.0.0

• - Removed@babel/polyfill@7.12.1(transitive)

• - Removedcore-js@2.6.12(transitive)

• - Removedregenerator-runtime@0.13.11(transitive)