Change socket implementation for servers

resources/assets/scripts/mixins/socketio/emitter.js

@@ -0,0 +1,61 @@
+import isFunction from 'lodash/isFunction';
+
+export default new class SocketEmitter {
+    constructor () {
+        this.listeners = new Map();
+    }
+
+    /**
+     * Add an event listener for socket events.
+     *
+     * @param {String|Number|Symbol} event
+     * @param {Function} callback
+     * @param {*} vm
+     */
+    addListener (event, callback, vm) {
+        if (!isFunction(callback)) {
+            return;
+        }
+
+        if (!this.listeners.has(event)) {
+            this.listeners.set(event, []);
+        }
+
+        this.listeners.get(event).push({callback, vm});
+    }
+
+    /**
+     * Remove an event listener for socket events based on the context passed through.
+     *
+     * @param {String|Number|Symbol} event
+     * @param {Function} callback
+     * @param {*} vm
+     */
+    removeListener (event, callback, vm) {
+        if (!isFunction(callback) || !this.listeners.has(event)) {
+            return;
+        }
+
+        const filtered = this.listeners.get(event).filter((listener) => {
+            return listener.callback !== callback || listener.vm !== vm;
+        });
+
+        if (filtered.length > 0) {
+            this.listeners.set(event, filtered);
+        } else {
+            this.listeners.delete(event);
+        }
+    }
+
+    /**
+     * Emit a socket event.
+     *
+     * @param {String|Number|Symbol} event
+     * @param {Array} args
+     */
+    emit (event, ...args) {
+        (this.listeners.get(event) || []).forEach((listener) => {
+            listener.callback.call(listener.vm, ...args);
+        });
+    }
+}