main.d

// D-WebUI - Public Network Access Example

import std.format : format;
import webui;

// Embed both UIs into the binary at compile time.
enum privateHtml = import("private.html");
enum publicHtml = import("public.html");

Window privateWindow;
Window publicWindow;

void main()
{
    privateWindow = newWindow();
    publicWindow = newWindow();

    // Wait forever, never time out
    setTimeout(0);

    // -- Public window -------------------------------------------------------

    // Make the URL reachable from public networks
    publicWindow.setPublic(true);

    // An empty element name binds every event of the window
    publicWindow.bind("", &publicWindowEvents);

    // Use a fixed port so the public URL is predictable
    publicWindow.setPort(9090);

    // Start the server without opening a browser window
    publicWindow.showBrowser(publicHtml, Browser.noBrowser);

    // -- Private window ------------------------------------------------------

    privateWindow.bind("", &privateWindowEvents);
    privateWindow.bind("Exit", () { exit(); });
    privateWindow.show(privateHtml);

    // Wait until all windows get closed
    wait();

    // Free all memory resources (optional)
    clean();
}

void publicWindowEvents(Event* e)
{
    if (e.eventType == EventType.connected)
        privateWindow.run(`document.getElementById("Logs").value += "New connection.\n";`);
    else if (e.eventType == EventType.disconnected)
        privateWindow.run(`document.getElementById("Logs").value += "Disconnected.\n";`);
}

void privateWindowEvents(Event* e)
{
    if (e.eventType != EventType.connected)
        return;

    // Show the public window address in the private window
    privateWindow.run(format(
            "document.getElementById('urlSpan1').innerHTML = 'http://localhost:%d';",
            publicWindow.getPort()));
    privateWindow.run(format(
            "document.getElementById('urlSpan2').innerHTML = '%s';", publicWindow.getUrl()));
}