wsobserver

wsobserver

A node module for receive websocket message in electron main process,and routing to render process.

Introduction

In electron main process start a websocket client, use thrid party module to connect remote websocket server.

If Electron render process want to receive websocket message from Electron main process, must subscribe title and ipc channel throught wsobserver module.we only to add render page's webcontent into wsobserver.

Install

npm install wsobserver --save

Usage

Require the module in an Electron web page.

var wswrap = require('wsobserver')

UsageAPI

subscribe(object, title, ipc_name)

object:Electron's BrowserWindow property webContent, title:string, ipc_name:string

unsubscribe(object, title)

object:Electron's BrowserWindow property webContent, title:string

unsubscribeAll(object) object:Electron's BrowserWindow property webContent

send(title, data)

title:string, data:string

In main process

//share object in render process and main process
global.sharedObj.wsObserver =wswrap.observer;

var ws = new wswrap.wsclient('ws://localhost:8088');
ws.ws_connect();

In render process

var ipcRenderer = require('electron').ipcRenderer;
var remote = require('electron').remote;

//get wsobserver in main process share object 
var observer = remote.getGlobal('sharedObj').wsObserver;

//websocket handle function
ipcRenderer.on('ws-title-message', function (e, data) {
     alert(data.toString());
});

//listen for websocket message from the main process   
function setupWSObserver(title) {
   observer.subscribe(remote.getCurrentWebContents(), title, 'ws-title-message');
}

function clearWSObserver(title) {
    observer.unsubscribe(remote.getCurrentWebContents(), title);
}