SoftwareDriven.InteropWebView.Client 1.0.0

SoftwareDriven.InteropWebView is a pub/sub hub solution to communicate strongly typed between a MAUI web view that runs a Blazor frontend hosted somewhere else.

• SoftwareDriven.InteropWebView contains shared classes
• SoftwareDriven.InteropWebView.Host is for the MAUI app
• SoftwareDriven.InteropWebView.Client is for the Blazor frontend.

In the MAUI app, register the web view:

builder
    .UseMauiApp<App>()
    .ConfigureFonts(fonts =>
    {
        fonts.AddFont("OpenSans-Regular.ttf", "OpenSansRegular");
        fonts.AddFont("OpenSans-Semibold.ttf", "OpenSansSemibold");
    })
    .ConfigureMauiHandlers(handlers =>
    {
        handlers.AddHandler(typeof(InteropWebView), typeof(InteropWebViewHandler));
    });

And don't forget to use the control in the target page. Bind the 'MessageHub' to it, e.g. from a viewmodel. Two self explanatory methods are provided by the hub:

MessageHub.Subscribe<T>(string topic, Action<T> action);

MessageHub.Publish<T>(string topic, T data);

In the client, register the following services:

services.AddSingleton<InteropMessageHub>();
services.AddSingleton<InteropClient>();

Trigger the initialization early, e.g. by triggering the creation of the service:

// Trigger the creation of the interop client.
services.GetService<InteropClient>();

Again, use the publish and subscribe methods to get or receive typed data.