elsa-studio/src/hosts/Elsa.Studio.Host.HostedWasm/Pages/_Host.cshtml at ec62ae8091f92db85c65de0233a1ee2a77e44eae · elsa-workflows/elsa-studio · GitHub

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        @page "/"
@using Elsa.Studio.Branding
@addTagHelper *, Microsoft.AspNetCore.Mvc.TagHelpers
@inject IConfiguration Configuration;
@inject IBrandingProvider BrandingProvider
@{
    var apiUrl = Configuration["Hosting:ApiUrl"];

    // Get the first segment of the request path, which represents the tenant ID.
    var segments = Request.Path.Value!.Split('/', StringSplitOptions.RemoveEmptyEntries);
    var tenantId = segments.Length is 1 or > 2 ? segments[0] : null;
    var baseRef = tenantId != null ? $"/{tenantId}/" : "/";
}

<!DOCTYPE html>
<html lang="en">

<head>
    <meta charset="utf-8"/>
    <meta name="viewport" content="width=device-width, initial-scale=1.0, maximum-scale=1.0, user-scalable=no"/>
    <title>Elsa Studio</title>
    <base href="@baseRef"/>
    <link rel="apple-touch-icon" sizes="180x180" href="@BrandingProvider.AppleTouchIconUrl">
    <link rel="icon" type="image/png" sizes="32x32" href="@BrandingProvider.Favicon32Url">
    <link rel="icon" type="image/png" sizes="16x16" href="@BrandingProvider.Favicon16Url">
    <link rel="manifest" href="_content/Elsa.Studio.Shell/site.webmanifest">
    <link href="_content/MudBlazor/MudBlazor.min.css" rel="stylesheet"/>
    <link href="_content/CodeBeam.MudBlazor.Extensions/MudExtensions.min.css" rel="stylesheet"/>
    <link href="_content/Radzen.Blazor/css/material-base.css" rel="stylesheet">
    <link href="_content/Elsa.Studio.Shell/css/shell.css" rel="stylesheet">
</head>

<body>

<!-- Initial loading screen for HostedWasm -->
<div id="hosted-wasm-loading" style="position: fixed; top: 0; left: 0; width: 100%; height: 100%; background: #f5f5f5; display: flex; justify-content: center; align-items: center; z-index: 9999;">
    <div style="text-align: center;">
        <div style="width: 40px; height: 40px; border: 4px solid #e0e0e0; border-top: 4px solid #1976d2; border-radius: 50%; animation: spin 1s linear infinite; margin: 0 auto 20px;"></div>
        <div id="hosted-loading-text" style="color: #666; font-family: 'Roboto', sans-serif;">Initializing...</div>
    </div>
</div>

<div id="app"></div>

<div id="blazor-error-ui">
    An unhandled error has occurred.
    <a href="" class="reload">Reload</a>
    <a class="dismiss">🗙</a>
</div>

<style>
    @@keyframes spin {
        0% { transform: rotate(0deg); }
        100% { transform: rotate(360deg); }
    }

    .blazor-ready #hosted-wasm-loading {
        display: none !important;
    }
</style>

<script src="_content/BlazorMonaco/jsInterop.js"></script>
<script src="_content/BlazorMonaco/lib/monaco-editor/min/vs/loader.js"></script>
<script src="_content/BlazorMonaco/lib/monaco-editor/min/vs/editor/editor.main.js"></script>
<script src="_content/MudBlazor/MudBlazor.min.js"></script>
<script src="_content/CodeBeam.MudBlazor.Extensions/MudExtensions.min.js"></script>
<script src="_content/Radzen.Blazor/Radzen.Blazor.js"></script>

<script>
    window.getClientConfig = function() { return {
        "apiUrl": "@apiUrl"
     } };
</script>

<script src="_framework/blazor.webassembly.js" autostart="false"></script>

<script>
    let hostedWasmLoadingHidden = false;
    let blazorStartAttempted = false;

    function hideHostedWasmLoadingScreen() {
        if (!hostedWasmLoadingHidden) {
            hostedWasmLoadingHidden = true;
            document.body.classList.add('blazor-ready');
        }
    }

    function updateHostedLoadingText(text) {
        const loadingTextEl = document.getElementById('hosted-loading-text');
        if (loadingTextEl) {
            loadingTextEl.textContent = text;
        }
    }

    // Expose functions for Blazor components
    window.hideAuthLoading = function () {
        hideHostedWasmLoadingScreen();
    };

    window.hideWasmLoading = function () {
        hideHostedWasmLoadingScreen();
    };

    window.updateLoadingStatus = function (status) {
        updateHostedLoadingText(status);
    };

    // Initialize Blazor with custom configuration
    function initializeBlazor() {
        if (!blazorStartAttempted) {
            blazorStartAttempted = true;
            updateHostedLoadingText('Starting Blazor WASM...');

            Blazor.start({
                loadBootResource: function (type, name, defaultUri, integrity) {
                    if (defaultUri.startsWith('http'))
                        return defaultUri;

                    if (!defaultUri.startsWith('/'))
                        return `/${defaultUri}`;

                    return defaultUri;
                }
            }).then(() => {
                updateHostedLoadingText('Loading application...');
            }).catch((error) => {
                if (error.message && error.message.includes('already started')) {
                    setTimeout(hideHostedWasmLoadingScreen, 100);
                } else {
                    updateHostedLoadingText('Startup failed');
                    setTimeout(hideHostedWasmLoadingScreen, 2000);
                }
            });
        }
    }

    // Initialize when DOM is ready
    document.addEventListener('DOMContentLoaded', function () {
        initializeBlazor();
    });

    // Safety timeout
    setTimeout(() => {
        if (!hostedWasmLoadingHidden) {
            hideHostedWasmLoadingScreen();
        }
    }, 5000);
</script>

</body>

</html>