Major updates

Automatic type conversion
Support struct data
Custom error handler

runtime/js/core/store.js

@@ -20,36 +20,53 @@ export function New(name, optionalDefault) {
 
 	var data;
 
+	// Check we are initialised
 	if( !window.wails) {
 		throw Error('Wails is not initialised');
 	}
 
+	// Store for the callbacks
 	let callbacks = [];
 	
+	// Subscribe to updates by providing a callback
 	this.subscribe = (callback) => {
 		callbacks.push(callback);
 	};
 
+	// sets the store data to the provided `newdata` value
 	this.set = (newdata) => {
 		
 		data = newdata;
 
-		// Emit the data
-		window.wails.Events.Emit('wails:sync:store:updated:'+name, data);
+		// Emit a notification to back end
+		window.wails.Events.Emit('wails:sync:store:updatedbyfrontend:'+name, JSON.stringify(data));
+
+		// Notify callbacks
+		callbacks.forEach( function(callback) {
+			callback(data);
+		});
 	};
 
+	// update mutates the value in the store by calling the
+	// provided method with the current value. The value returned 
+	// by the updater function will be set as the new store value
 	this.update = (updater) => {
 		var newValue = updater(data);
 		this.set(newValue);
 	};
 
-	// Setup event listener
-	window.wails.Events.On('wails:sync:store:updated:'+name, function(result) {
+	// Setup event callback
+	window.wails.Events.On('wails:sync:store:updatedbybackend:'+name, function(result) {
+
+		// Parse data
+		result = JSON.parse(result);
+
+		// Todo: Potential preprocessing?
 
 		// Save data
 		data = result;
 
-		// Notify listeners
+		// Notify callbacks
 		callbacks.forEach( function(callback) {
 			callback(data);
 		});