@instructure/quiz-interactions/lib/components/hotspot/common/Square/index.js

A React UI component Library for quiz interaction types.

"use strict";

var _interopRequireDefault = require("@babel/runtime/helpers/interopRequireDefault");
Object.defineProperty(exports, "__esModule", {
  value: true
});
exports["default"] = void 0;
var _classCallCheck2 = _interopRequireDefault(require("@babel/runtime/helpers/classCallCheck"));
var _createClass2 = _interopRequireDefault(require("@babel/runtime/helpers/createClass"));
var _possibleConstructorReturn2 = _interopRequireDefault(require("@babel/runtime/helpers/possibleConstructorReturn"));
var _getPrototypeOf2 = _interopRequireDefault(require("@babel/runtime/helpers/getPrototypeOf"));
var _inherits2 = _interopRequireDefault(require("@babel/runtime/helpers/inherits"));
var _defineProperty2 = _interopRequireDefault(require("@babel/runtime/helpers/defineProperty"));
var _react = _interopRequireWildcard(require("react"));
var _Canvas = _interopRequireDefault(require("../Canvas"));
var _propTypes = _interopRequireWildcard(require("../Canvas/propTypes"));
function _getRequireWildcardCache(nodeInterop) { if (typeof WeakMap !== "function") return null; var cacheBabelInterop = new WeakMap(); var cacheNodeInterop = new WeakMap(); return (_getRequireWildcardCache = function _getRequireWildcardCache(nodeInterop) { return nodeInterop ? cacheNodeInterop : cacheBabelInterop; })(nodeInterop); }
function _interopRequireWildcard(obj, nodeInterop) { if (!nodeInterop && obj && obj.__esModule) { return obj; } if (obj === null || typeof obj !== "object" && typeof obj !== "function") { return { "default": obj }; } var cache = _getRequireWildcardCache(nodeInterop); if (cache && cache.has(obj)) { return cache.get(obj); } var newObj = {}; var hasPropertyDescriptor = Object.defineProperty && Object.getOwnPropertyDescriptor; for (var key in obj) { if (key !== "default" && Object.prototype.hasOwnProperty.call(obj, key)) { var desc = hasPropertyDescriptor ? Object.getOwnPropertyDescriptor(obj, key) : null; if (desc && (desc.get || desc.set)) { Object.defineProperty(newObj, key, desc); } else { newObj[key] = obj[key]; } } } newObj["default"] = obj; if (cache) { cache.set(obj, newObj); } return newObj; }
function _callSuper(_this, derived, args) {
  function isNativeReflectConstruct() {
    if (typeof Reflect === "undefined" || !Reflect.construct) return false;
    if (Reflect.construct.sham) return false;
    if (typeof Proxy === "function") return true;
    try {
      return !Boolean.prototype.valueOf.call(Reflect.construct(Boolean, [], function () {}));
    } catch (e) {
      return false;
    }
  }
  derived = (0, _getPrototypeOf2["default"])(derived);
  return (0, _possibleConstructorReturn2["default"])(_this, isNativeReflectConstruct() ? Reflect.construct(derived, args || [], (0, _getPrototypeOf2["default"])(_this).constructor) : derived.apply(_this, args));
}
var Square = exports["default"] = /*#__PURE__*/function (_Component) {
  function Square() {
    var _this2;
    (0, _classCallCheck2["default"])(this, Square);
    for (var _len = arguments.length, args = new Array(_len), _key = 0; _key < _len; _key++) {
      args[_key] = arguments[_key];
    }
    _this2 = _callSuper(this, Square, [].concat(args));
    (0, _defineProperty2["default"])(_this2, "canvasRef", function (ref) {
      _this2.canvas = ref;
    });
    // this type needs exactly 2 coordinates to draw a square
    (0, _defineProperty2["default"])(_this2, "drawShape", function () {
      var coordinates = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : [];
      if (coordinates.length === 2) {
        var ctx = _this2.canvas.canvasElement.getContext('2d');
        var startPoint = coordinates[0];
        var endPoint = coordinates[1];
        var minX = Math.min(endPoint.x, startPoint.x);
        var minY = Math.min(endPoint.y, startPoint.y);
        var maxX = Math.max(endPoint.x, startPoint.x);
        var maxY = Math.max(endPoint.y, startPoint.y);
        var width = maxX - minX;
        var height = maxY - minY;
        _this2.canvas.setFillStyle(); // content
        ctx.fillRect(minX, minY, width, height);
        _this2.canvas.setStrokeStyle(); // border
        ctx.strokeRect(minX, minY, width, height);
      }
    });
    // ===========
    //   ACTIONS
    // ===========
    (0, _defineProperty2["default"])(_this2, "onMouseMove", function (e) {
      if (_this2.canvas.isDrawing()) {
        var coordinates = _this2.__getSquareCoordinates(e);
        _this2.canvas.drawShape(coordinates);
      }
    });
    (0, _defineProperty2["default"])(_this2, "onMouseDown", function (e) {
      if (!_this2.canvas.isDrawing()) {
        _this2.canvas.startDrawing(e);
      }
    });
    (0, _defineProperty2["default"])(_this2, "onMouseUp", function (e) {
      if (_this2.canvas.isDrawing()) {
        var coordinates = _this2.__getSquareCoordinates(e);
        var firstPoint = coordinates[0];
        var nextPoint = coordinates[1];
        var pointsDiffer = firstPoint.x !== nextPoint.x || firstPoint.y !== nextPoint.y;
        if (pointsDiffer) {
          _this2.canvas.stopDrawing(coordinates);
        }
      }
    });
    (0, _defineProperty2["default"])(_this2, "onTouchStart", function (e) {
      e.preventDefault();
      var evt = _this2.canvas.convertTouchCoordinates(e);
      _this2.onMouseDown(evt);
    });
    (0, _defineProperty2["default"])(_this2, "onTouchMove", function (e) {
      var evt = _this2.canvas.convertTouchCoordinates(e);
      _this2.onMouseMove(evt);
    });
    (0, _defineProperty2["default"])(_this2, "onTouchEnd", function (e) {
      e.preventDefault();
      var evt = _this2.canvas.convertTouchCoordinates(e);
      _this2.onMouseUp(evt);
    });
    return _this2;
  }
  (0, _inherits2["default"])(Square, _Component);
  return (0, _createClass2["default"])(Square, [{
    key: "__getSquareCoordinates",
    value: function __getSquareCoordinates(e) {
      var startPoint = this.canvas.getInitialCoordinate();
      var x = e.nativeEvent.offsetX;
      var y = e.nativeEvent.offsetY;
      return [{
        x: startPoint.x,
        y: startPoint.y
      }, {
        x: x,
        y: y
      }];
    }
  }, {
    key: "render",
    value: function render() {
      return /*#__PURE__*/_react["default"].createElement(_Canvas["default"], Object.assign({
        realRef: this.canvasRef,
        drawShape: this.drawShape,
        onMouseMove: this.onMouseMove,
        onMouseDown: this.onMouseDown,
        onMouseUp: this.onMouseUp,
        onTouchStart: this.onTouchStart,
        onTouchMove: this.onTouchMove,
        onTouchEnd: this.onTouchEnd
      }, (0, _propTypes.pickProps)(this.props)));
    }
  }]);
}(_react.Component);
(0, _defineProperty2["default"])(Square, "propTypes", _propTypes["default"]);
(0, _defineProperty2["default"])(Square, "defaultProps", _propTypes.defaultProps);