axis3d/core/component.js

'use strict';

Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.Component = undefined;

var _extends = Object.assign || function (target) { for (var i = 1; i < arguments.length; i++) { var source = arguments[i]; for (var key in source) { if (Object.prototype.hasOwnProperty.call(source, key)) { target[key] = source[key]; } } } return target; };

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

var _createClass = 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); } } return function (Constructor, protoProps, staticProps) { if (protoProps) defineProperties(Constructor.prototype, protoProps); if (staticProps) defineProperties(Constructor, staticProps); return Constructor; }; }();

var _command = require('./command');

var _entity = require('./entity');

function _objectDestructuringEmpty(obj) { if (obj == null) throw new TypeError("Cannot destructure undefined"); }

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; }

/**
 * A Component is a command that composes one or more components and functions
 * into a single function  that is invokable like any command function.
 * An initial or default state can be given which is injected into the block
 * context object each call.
 */
var componentCount = 0;

var Component = exports.Component = function (_Command) {
  _inherits(Component, _Command);

  _createClass(Component, null, [{
    key: 'id',
    value: function id() {
      return ++componentCount;
    }
  }, {
    key: 'defaults',
    value: function defaults() {
      return {};
    }
  }, {
    key: 'compose',
    value: function compose() {
      for (var _len = arguments.length, components = Array(_len), _key = 0; _key < _len; _key++) {
        components[_key] = arguments[_key];
      }

      if (Array.isArray(components[0])) {
        components = components[0];
      }
      components = Array.isArray(components) ? components : [];
      return component;
      function component(state, block) {
        if ('function' == typeof state) {
          block = state;state = {};
        }
        state = 'object' == (typeof state === 'undefined' ? 'undefined' : _typeof(state)) && state ? state : {};
        block = 'function' == typeof block ? block : function () {};
        if (0 == components.length) {
          return block(state);
        } else {
          walk(components.slice());
        }
        function walk(list) {
          var component = list.shift();
          if ('function' == typeof component) {
            if (list.length) {
              component(state, function () {
                return walk(list);
              });
            } else if (block != component) {
              component(state, block);
            }
          } else {
            walk(list);
          }
        }
      }
    }
  }]);

  function Component(ctx) {
    for (var _len2 = arguments.length, children = Array(_len2 > 2 ? _len2 - 2 : 0), _key2 = 2; _key2 < _len2; _key2++) {
      children[_key2 - 2] = arguments[_key2];
    }

    var initialState = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {};

    _classCallCheck(this, Component);

    if ('function' == typeof initialState) {
      children.unshift(initialState);
      initialState = {};
    } else if (Array.isArray(initialState)) {
      children = initialState;
      initialState = {};
    }
    children = Component.compose(children);
    var entity = new _entity.Entity(ctx, initialState);
    return _possibleConstructorReturn(this, (Component.__proto__ || Object.getPrototypeOf(Component)).call(this, function (state, block) {
      if ('function' == typeof state) {
        block = state;state = {};
      }
      state = 'object' == (typeof state === 'undefined' ? 'undefined' : _typeof(state)) && state ? state : {};
      block = 'function' == typeof block ? block : function () {};
      if (Array.isArray(state)) {
        state = state.map(function (s) {
          return _extends({}, initialState, s);
        });
      } else {
        state = _extends({}, initialState, state);
      }
      entity(state, function (_ref, args) {
        _objectDestructuringEmpty(_ref);

        children(args, block);
      });
    }));
  }

  return Component;
}(_command.Command);
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