Embedding Rocket.Chat on iframe in Swift

README.md

Docs

Make sure to read https://developer.rocket.chat/rocket.chat/iframe-integration/adding-a-rocket.chat-chat-room-to-your-web-app

There are two important settings there:

• Administration > Settings > General > Restrict access to any iframe needs to be disabled
• Administration > Settings > General > iframe Integration > Enable Receive needs to be enabled
• Keep Receive Origins as *

Xcode

• Open Xcode and create a new iOS project.
• Choose the "App" template and click "Next."
• Enter your project details and make sure Swift is selected as the language.
• Go to ViewController.swift and overwrite it with the code below
• Make sure to a valid user token on YOUR_TOKEN_HERE

Env

Xcode 15.3
Macbook Pro M1 Pro

ViewController.swift

//
//  ViewController.swift
//  WKWebViewExample
//
//  Created by Diego Mello on 3/19/24.
//

import UIKit
import WebKit

class ViewController: UIViewController, WKNavigationDelegate {
    
    var webView: WKWebView!

    override func viewDidLoad() {
        super.viewDidLoad()
        // Do any additional setup after loading the view.
        
        let myURL = URL(string: "https://mobile.rocket.chat/channel/general?layout=embedded")
        let myRequest = URLRequest(url: myURL!)
        webView.load(myRequest)
    }
    
    override func loadView() {
        let webConfiguration = WKWebViewConfiguration()
        webView = WKWebView(frame: .zero, configuration: webConfiguration)
        webView.navigationDelegate = self
        view = webView
    }

    func webView(_ webView: WKWebView, didFinish navigation: WKNavigation!) {
        // JavaScript code to post a message
        let js = "window.postMessage({ externalCommand:'login-with-token', token: 'YOUR_TOKEN_HERE' });"

        // Delay the JavaScript injection by 300 milliseconds
        DispatchQueue.main.asyncAfter(deadline: .now() + 0.3) {
            webView.evaluateJavaScript(js) { (result, error) in
                if let error = error {
                    print("JavaScript injection error: \(error)")
                } else {
                    print("JavaScript injected successfully")
                }
            }
        }
    }
}

Simulator.Screen.Recording.-.iPhone.15.Pro.-.2024-03-19.at.11.41.08.mp4