react-themable-hoc/dist/ThemeEvents.js

React higher-order-components that allow for css-in-js-style themes.

(function (global, factory) {
    if (typeof define === "function" && define.amd) {
        define(["exports"], factory);
    } else if (typeof exports !== "undefined") {
        factory(exports);
    } else {
        var mod = {
            exports: {}
        };
        factory(mod.exports);
        global.ThemeEvents = mod.exports;
    }
})(this, function (exports) {
    "use strict";

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

    function _toConsumableArray(arr) {
        if (Array.isArray(arr)) {
            for (var i = 0, arr2 = Array(arr.length); i < arr.length; i++) {
                arr2[i] = arr[i];
            }

            return arr2;
        } else {
            return Array.from(arr);
        }
    }

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

    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 ThemeEvents = function () {
        function ThemeEvents() {
            _classCallCheck(this, ThemeEvents);
        }

        _createClass(ThemeEvents, null, [{
            key: "subscribe",
            value: function subscribe(event, listener) {
                var _this = this;

                var options = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : {};

                if (event && !listener) {
                    // Partial application - returns function that takes a listener and options
                    // for this event type
                    return function (l, o) {
                        return _this.subscribe(event, l, o);
                    };
                }

                if (!this.listeners[event]) {
                    this.listeners[event] = [];
                }

                this.listeners[event].push(listener);

                return function () {
                    return _this.unsubscribe(event, listener);
                };
            }
        }, {
            key: "unsubscribe",
            value: function unsubscribe(event, listener) {
                var listenerIndex = this.listeners[event].indexOf(listener);
                if (listenerIndex < 0) return;

                this.listeners[event] = [].concat(_toConsumableArray(this.listeners[event].slice(0, listenerIndex)), _toConsumableArray(this.listeners[event].slice(listenerIndex + 1)));
            }
        }, {
            key: "publish",
            value: function publish(event, payload) {
                if (this.listeners[event]) {
                    this.listeners[event].forEach(function (callback) {
                        return callback(payload);
                    });
                }
            }
        }]);

        return ThemeEvents;
    }();

    ThemeEvents.listeners = {};
    exports.default = ThemeEvents;
});