Updated to compile with babel 7

Author: qudde

.babelrc

@@ -0,0 +1,8 @@
+{
+  "presets": [
+    "@babel/react"
+  ],
+  "plugins": [
+    "@babel/plugin-syntax-dynamic-import"
+  ]
+}

lib/index.js

@@ -0,0 +1,47 @@
+function _extends() { _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; }; return _extends.apply(this, arguments); }
+
+import React, { Component } from "react";
+import mediator from "./store";
+
+function withMediator(WrappedComponent) {
+  class WithMediator extends Component {
+    constructor(props) {
+      super(props);
+      this.listeners = [];
+    }
+
+    subscribe(name, fn) {
+      this.listeners[name] = mediator.subscribe(name, fn);
+    }
+
+    publish(name, data) {
+      mediator.publish(name, data);
+    }
+
+    unsubscribe() {
+      for (let key in this.listeners) {
+        mediator.remove(key, this.listeners[key]);
+      }
+
+      this.listeners = {};
+    }
+
+    componentWillUnmount() {
+      this.unsubscribe();
+    }
+
+    render() {
+      return React.createElement(WrappedComponent, _extends({}, this.props, {
+        publish: this.publish,
+        subscribe: this.subscribe,
+        listeners: this.listeners
+      }));
+    }
+
+  }
+
+  WithMediator.displayName = `withMediator(${WrappedComponent.displayName || WrappedComponent.name})`;
+  return WithMediator;
+}
+
+export { withMediator, mediator };

lib/pubsub.js

@@ -0,0 +1,52 @@
+class Mediator {
+  constructor() {
+    this.events = {};
+  }
+
+  publish(name, obj) {
+    let e = this.events[name];
+
+    if (!e) {
+      return;
+    }
+
+    e.forEach(fn => fn.apply(this, [obj]));
+  }
+
+  subscribe(name, func) {
+    if (!this.events[name]) {
+      this.events[name] = [];
+    }
+
+    const index = this.events[name].push(func) - 1;
+    return index;
+  }
+
+  remove(name, index) {
+    let e = this.events[name];
+
+    if (e && typeof index === "undefined") {
+      delete this.events[name];
+      return true;
+    }
+
+    if (e && e[index]) {
+      delete this.events[name][index];
+
+      if (this.events[name] && !this.events[name][0]) {
+        delete this.events[name];
+      }
+
+      return true;
+    }
+
+    return;
+  }
+
+  getEvents() {
+    return this.events;
+  }
+
+}
+
+export default Mediator;

lib/store.js

@@ -0,0 +1,3 @@
+import Mediator from "./pubsub";
+let mediator = new Mediator();
+export default mediator;