ipc copypasted from legacy app

src/services/index.js

@@ -0,0 +1,5 @@
+const ipc = require('./ipc');
+
+module.exports = {
+    ipc
+};

src/services/ipc.js

@@ -0,0 +1,54 @@
+var events = require("events");
+
+var ipc = new events.EventEmitter();
+
+ipc.props = { };
+ipc.send = function() { };
+ipc.isDesktop = false;
+
+// New method of communication
+function initShellComm() {
+	var transport = window.qt && window.qt.webChannelTransport
+	if (! transport) throw "no viable transport found (qt.webChannelTransport)"
+
+	ipc.isDesktop = true;
+
+	var QtMsgTypes = { signal: 1, propertyUpdate: 2, init: 3, idle: 4, debug: 5, invokeMethod: 6, connectToSignal: 7, disconnectFromSignal: 8, setProperty: 9, response: 10 };
+	var QtObjId = "transport"; // the ID of our transport object
+
+	var id = 0;
+	function send(msg) {
+		msg.id = id++;
+		transport.send(JSON.stringify(msg))
+	}
+
+	transport.onmessage = function(message) {
+		var msg = JSON.parse(message.data)
+
+		if (msg.id === 0) {
+			var obj = msg.data[QtObjId]
+
+			obj.properties.slice(1).forEach(function(prop) {
+				ipc.props[prop[1]] = prop[3]
+			})
+			ipc.emit("received-props", ipc.props)
+
+			obj.signals.forEach(function(sig) {
+				send({ type: QtMsgTypes.connectToSignal, object: QtObjId, signal: sig[1] }) 
+			})
+
+			var onEvent = obj.methods.filter(function(x) { return x[0] === "onEvent" })[0]
+		
+			ipc.send = function(ev, args) {
+				send({ type: QtMsgTypes.invokeMethod, object: QtObjId, method: onEvent[1], args: [ev, args || { }] })
+			}
+			ipc.send("app-ready", { }) // signal that we're ready to take events
+		}
+
+		if (msg.object == QtObjId && msg.type === QtMsgTypes.signal) ipc.emit(msg.args[0], msg.args[1])
+	}
+
+	send({ type: QtMsgTypes.init })
+}
+
+module.exports = ipc;