Using Prime in gjs to create Gtk Applications.

build.sh

# use the split-generics branch of prime.
wrup -r prime ../../www/prime/index.js -r bind ../../www/prime/function/bind -o prime.js

gjs-prime.js

#!/usr/bin/gjs

const Lang = imports.lang;
const Gtk = imports.gi.Gtk;

imports.searchPath.push ('.');
var prime = imports.prime.prime;
var bind = imports.prime.bind;

const Application = prime({

	//create the application
	constructor: function() {
		this.application = new Gtk.Application();
		//connect to 'activate' and 'startup' signals to handlers.
		this.application.connect('activate', bind(this.onActivate, this));
		this.application.connect('startup', bind(this.onStartup, this));
	},

	//create the UI
	buildUI: function() {
		this.window = new Gtk.ApplicationWindow({
			application: this.application,
			title: "Hello World!"
		});
		this.label = new Gtk.Label({
			label: "Hello World"
		});
		this.window.add(this.label);
	},

	//handler for 'activate' signal
	onActivate: function() {
		//show the window and all child widgets
		this.window.show_all();
	},

	//handler for 'startup' signal
	onStartup: function() {
		this.buildUI();
	}

});

//run the application
let app = new Application();
app.application.run(ARGV);