[Solved] Return a value from a triggered promise?

self.runtime.trigger(cr.plugins_.PluginName.prototype.cnds.OnProvMessage, self);[/code:3vw215xn]

Looks like the self modifier there might be applying to the API's listen promise/function, so there might be a better way for this to be executed. An earlier version of the API worked no problem with just BrowserExecJS but due to updates to it using promises, I'm having to delve into the SDK a little to try to make things work. I'm not used to working with Promises so there might be a simple solution I need.

Here's the runtime code for the plugin I'm trying to setup. Currently the only actions are Connect, Listen, Send, with an expression for the message and condition to trigger when a message is received.
[code:3vw215xn]
	// called whenever an instance is created
	instanceProto.onCreate = function()
	{
		
		this.msgContent = "";
		
		APIThing.Messages.setProvider('providername', {server: 'localhost', port: 5001});
		
		var self = this;
	};

...
	//////////////////////////////////////
	// Conditions
	function Cnds() {};
	
	Cnds.prototype.OnProvMessage = function ()
	{
		return true;
	};
	
	pluginProto.cnds = new Cnds();
	
	//////////////////////////////////////
	// Actions
	function Acts() {};
	
	Acts.prototype.listenTo = function (topic_)
	{
		APIThing.Messages.listenTo({topic: topic_}).then(function(message,msgInfo) {
			self.msgContent = JSON.stringify(msgInfo);
			self.runtime.trigger(cr.plugins_.PluginName.prototype.cnds.OnProvMessage, self);
		});
	};
	
	Acts.prototype.sendMsg = function (topic_, msg_)
	{
		APIThing.Messages.sendMessage({
			topic: topic_, data: {stuff: ((msg_).toString() + '').toString()}
		});
	};
	
	pluginProto.acts = new Acts();
	
	//////////////////////////////////////
	// Expressions
	function Exps() {};
	
	Exps.prototype.message = function (ret)
	{
		 ret.set_string(this.msgContent);
	};
	
	// ... other expressions here ...
	
	pluginProto.exps = new Exps();
[/code:3vw215xn]

Acts.prototype.listenTo = function (topic_)
{
	var c2self = this;
	APIThing.Messages.listenTo({topic: topic_}).then(function(message,msgInfo) {
		c2self.msgContent = JSON.stringify(msgInfo);
		c2self.runtime.trigger(cr.plugins_.PluginName.prototype.cnds.OnProvMessage, c2self);
	});
};[/code:1a86eokk]

With this code it's returning the JSON info I need .