yunitto/lib.js

Yunitto, the unique NodeOS desktop manager

var express = require("express");
var app = express();
var uuid = require("uuid");
var ee = require('event-emitter');
var WebSocketServer = require('ws').Server;
var Yunitto = function(opts) { // initialize the interfaces
    this.screens = [];
    this.e = ee({});
    this.detectScreens = false;
    this.debug = opts.debug;
    if(!opts.nobrowser) {
        if(!opts.httpport) {
            opts.httpport = 52758;
        }

        if(!opts.sockport) {
            opts.sockport = 28844;
        }

        app.use(express.static(__dirname + '/b_back'));
        app.listen(opts.httpport);
        this.wss = new WebSocketServer({ port: opts.sockport });
        this.wss.on('connection', (ws) => {
            if(this.debug) {
                console.log("[Yunitto] Websocket connection established. ");
            }

            if(this.detectScreens) {
                var id = uuid.v4();
                ws.on('close', () => {
                    if(this.debug) {
                        console.log("[Yunitto] Websocket connection died. ");
                    }

                    this.e.emit('destroyScreen', this.screens[id]);
                    delete this.screens[id];
                });

                this.screens[id] = new this.Screen("browser", [ws], this);
            } else {
                // TODO add user to pending screens list and make it be confirmed
            }
        });
    }
};

Yunitto.prototype.useAllScreens = function() {
    this.detectScreens = true;
};

var Screen = function(interf, params, y) {
    // init interface
    this.interf = interf;
    this.map = [];
    this.type = "canvas";
    if(this.interf === "framebuffer") {

    } else if(this.interf === "egl") {

    } else if(this.interf === "browser") {
        this.ws = params[0];
        if(this.debug) {
            console.log("[Yunitto][Screen] Browser screen created. ");
        }
    } else {
        throw "Invalid interface requested";
    }

    y.e.emit('loadScreen', this);
};

Screen.prototype.setContentType = function(type) {
    this.type = type;
    if(this.debug) {
        console.log("[Yunitto][Screen] Content-type set to " + type + ". ");
    }
};

Screen.prototype.render = function(content) {
    if(this.type == "canvas") {
        if(this.interf === "framebuffer") {

        } else if(this.interf === "egl") {

        } else if(this.interf === "browser") {
            this.ws.send("3" + JSON.stringify(content.func));
        } else {
            throw "Invalid interface being used for rendering";
        }
    } else if(this.type == "html") {
        if(this.interf === "framebuffer") {

        } else if(this.interf === "egl") {

        } else if(this.interf === "browser") {
            if(content.url) {
                this.ws.send("1" + content.url);
            } else if(content.html) {
                this.ws.send("2" + content.html);
            }
        } else {
            throw "Invalid interface being used for rendering";
        }
    } else {
        throw "Invalid type being used for rendering";
    }
};

Yunitto.prototype.Screen = Screen;
Yunitto.prototype.useScreen = function(interf, params) {
    this.screens.push(new this.Screen(interf, params));
    if(this.debug) {
        console.log("[Yunitto] Now using a new screen. ");
    }
};

module.exports = Yunitto;