ciril/lib/factory/classes.js

A javascript data binding library

'use strict';

var _typeof = typeof Symbol === "function" && typeof Symbol.iterator === "symbol" ? function (obj) { return typeof obj; } : function (obj) { return obj && typeof Symbol === "function" && obj.constructor === Symbol ? "symbol" : typeof obj; };

Object.defineProperty(exports, "__esModule", {
    value: true
});
exports.createMixin = createMixin;
exports.default = createClass;

var _flownode = require('../core/flownode');

var _flownode2 = _interopRequireDefault(_flownode);

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }

function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }

function _possibleConstructorReturn(self, call) { if (!self) { throw new ReferenceError("this hasn't been initialised - super() hasn't been called"); } return call && (typeof call === "object" || typeof call === "function") ? call : self; }

function _inherits(subClass, superClass) { if (typeof superClass !== "function" && superClass !== null) { throw new TypeError("Super expression must either be null or a function, not " + typeof superClass); } subClass.prototype = Object.create(superClass && superClass.prototype, { constructor: { value: subClass, enumerable: false, writable: true, configurable: true } }); if (superClass) Object.setPrototypeOf ? Object.setPrototypeOf(subClass, superClass) : subClass.__proto__ = superClass; }

var assign = require('object-assign');

function conservativeMerge(target, source) {
    Object.getOwnPropertyNames(source).forEach(function (name) {
        if (name !== "constructor" && !target[name]) Object.defineProperty(target, name, Object.getOwnPropertyDescriptor(source, name));
    });
}

/**
 * Helper method to mix source class into target class. Existing
 * properties are NOT overriden.
 * @param target {function}
 * @param source {function}
 */
function mixin(target) {
    var proto = target.prototype;

    for (var _len = arguments.length, sources = Array(_len > 1 ? _len - 1 : 0), _key = 1; _key < _len; _key++) {
        sources[_key - 1] = arguments[_key];
    }

    sources.forEach(function (source) {
        source = source.prototype;
        conservativeMerge(proto, source);
    });
    return target;
}

/**
 * Create a FlowNode mixin class from a constructor.
 * @param Constructor {function}
 * @return
 *        A FlowNode mixin class
 */
function createMixin(Constructor) {
    if (typeof Constructor !== 'function') throw new Error('createMixin(...): argument ' + ('should be function, got ' + (typeof Constructor === 'undefined' ? 'undefined' : _typeof(Constructor))));
    var getInitialState = Constructor.prototype.getInitialState;
    var initialState = typeof getInitialState === 'function' ? getInitialState.apply(this) : null;
    var register = Constructor.prototype.registerOnCreate || true;

    var Mixin = function (_Constructor) {
        _inherits(Mixin, _Constructor);

        function Mixin() {
            _classCallCheck(this, Mixin);

            return _possibleConstructorReturn(this, Object.getPrototypeOf(Mixin).apply(this, arguments));
        }

        return Mixin;
    }(Constructor);

    ;

    mixin(Mixin, _flownode2.default);

    var proto = Mixin.prototype;
    // override constructor
    Mixin = function Mixin() {
        _flownode.NodeConstructor.call(this, initialState, register);
        Constructor.apply(this, arguments);
    };
    // copy back prototype
    Mixin.prototype = proto;
    return Mixin;
}

/**
 * Create a FlowNode class from a specification.
 * @param spec {object}
 */
function createClass(spec) {
    if ((typeof spec === 'undefined' ? 'undefined' : _typeof(spec)) !== 'object') throw new Error('createClass(...): class ' + 'specification must be an object, ' + ('got ' + (typeof spec === 'undefined' ? 'undefined' : _typeof(spec))));

    var NewClass = function (_FlowNode) {
        _inherits(NewClass, _FlowNode);

        function NewClass() {
            _classCallCheck(this, NewClass);

            return _possibleConstructorReturn(this, Object.getPrototypeOf(NewClass).apply(this, arguments));
        }

        return NewClass;
    }(_flownode2.default);

    ;
    assign(NewClass.prototype, spec);
    return NewClass;
}