diff --git a/Elsa.Studio.sln b/Elsa.Studio.sln
index 33c474958..c552007d8 100644
--- a/Elsa.Studio.sln
+++ b/Elsa.Studio.sln
@@ -1,7 +1,7 @@
Microsoft Visual Studio Solution File, Format Version 12.00
# Visual Studio Version 18
-VisualStudioVersion = 18.2.11408.102 d18.0
+VisualStudioVersion = 18.2.11408.102
MinimumVisualStudioVersion = 10.0.40219.1
Project("{2150E333-8FDC-42A3-9474-1A3956D46DE8}") = "src", "src", "{875A7E2E-4B7C-4AF0-A71E-3980B73AF363}"
ProjectSection(SolutionItems) = preProject
diff --git a/IMPLEMENTATION_SUMMARY.md b/IMPLEMENTATION_SUMMARY.md
new file mode 100644
index 000000000..884159588
--- /dev/null
+++ b/IMPLEMENTATION_SUMMARY.md
@@ -0,0 +1,212 @@
+# Elsa Studio Hosting Components - Implementation Summary
+
+## Problem Statement
+There was a lot of repetitive code in host application HTML, CSHTML, and JavaScript files that wasn't transferrable to other Elsa Studio host applications. Integrators had to copy and paste all the boilerplate code to set up a new host.
+
+## Solution
+Created complete, reusable single-script loaders in the `Elsa.Studio.Shared` project that handle EVERYTHING - CSS, JavaScript, loading screen, and initialization.
+
+## What Was Created
+
+### 1. Complete Single-Script Loaders
+**Location:** `src/framework/Elsa.Studio.Shared/wwwroot/js/`
+
+Three comprehensive loaders that dynamically inject all dependencies:
+
+**elsa-studio-loader-server.js** - For Blazor Server
+- Dynamically injects all required CSS links (MudBlazor, Radzen, Elsa Studio Shell, Workflows Designer)
+- Dynamically loads all JavaScript libraries (BlazorMonaco, MudBlazor, Radzen, etc.)
+- Creates and injects loading screen HTML and CSS
+- Initializes Blazor Server with 10-second timeout fallback
+- Exposes `ElsaStudio.hideLoading()` API
+
+**elsa-studio-loader-wasm.js** - For Blazor WebAssembly
+- Dynamically injects all required CSS links
+- Dynamically loads all JavaScript libraries including WebAssembly authentication
+- Creates and injects loading screen HTML and CSS
+- Initializes Blazor WASM with safety timeout
+- Handles script loading order and dependencies
+
+**elsa-studio-loader-hosted-wasm.js** - For Hosted WebAssembly
+- All features of WASM loader
+- Custom `loadBootResource` configuration for multi-tenant scenarios
+- Dynamic base path resolution support
+
+### 2. Optional Standalone CSS
+**Location:** `src/framework/Elsa.Studio.Shared/wwwroot/css/elsa-loading.css`
+
+Standalone CSS file for the loading screen (optional, as loaders inject inline styles).
+
+### 3. Razor Components (For Pure Blazor)
+**Location:** `src/framework/Elsa.Studio.Shared/Components/Hosting/`
+
+These remain available for use in pure Blazor components:
+- `ElsaStudioHead.razor`
+- `ElsaStudioScripts.razor`
+- `ElsaStudioLoadingScreen.razor`
+- `ElsaStudioInitScript.razor`
+- `BlazorHostingMode.cs`
+
+### 4. Comprehensive Documentation
+**Location:** `src/framework/Elsa.Studio.Shared/Components/Hosting/README.md`
+
+Complete integration guide with minimal examples for all scenarios.
+
+## Changes to Host Projects
+
+### Before (Repetitive Pattern)
+Each host had ~50-60 lines of boilerplate:
+- 5-7 CSS `Elsa Studio
+
+ An error has occurred.
+
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+
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+
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+
+
+
+
+
+ An unhandled error has occurred.
+
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+
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+
+ /// The Blazor hosting mode (Server or WebAssembly).
+ ///
+ [Parameter]
+ public BlazorHostingMode Mode { get; set; } = BlazorHostingMode.Server;
+
+ ///
+ /// For Server mode: Maximum time (in milliseconds) to wait before hiding loading screen. Default is 10000 (10 seconds).
+ ///
+ [Parameter]
+ public int MaxWaitTimeMs { get; set; } = 10000;
+
+ ///
+ /// For WebAssembly mode: Safety timeout (in milliseconds) to ensure loading screen is hidden. Default is 5000 (5 seconds).
+ ///
+ [Parameter]
+ public int SafetyTimeoutMs { get; set; } = 5000;
+
+ ///
+ /// For WebAssembly mode: Custom Blazor configuration as a JavaScript object literal.
+ /// Example: "{ loadBootResource: function(type, name, defaultUri, integrity) { return defaultUri; } }"
+ ///
+ [Parameter]
+ public string? CustomConfig { get; set; }
+}
diff --git a/src/framework/Elsa.Studio.Shared/Components/Hosting/ElsaStudioLoadingScreen.razor b/src/framework/Elsa.Studio.Shared/Components/Hosting/ElsaStudioLoadingScreen.razor
new file mode 100644
index 000000000..9284f4520
--- /dev/null
+++ b/src/framework/Elsa.Studio.Shared/Components/Hosting/ElsaStudioLoadingScreen.razor
@@ -0,0 +1,44 @@
+@namespace Elsa.Studio.Shared.Components.Hosting
+
+@*
+ Elsa Studio Loading Screen Component - Shows a loading spinner during initialization.
+ Usage:
+ /// The ID for the loading screen element. Default is "elsa-loading".
+ ///
+ [Parameter]
+ public string Id { get; set; } = "elsa-loading";
+
+ ///
+ /// The ID for the loading text element. Default is "elsa-loading-text".
+ ///
+ [Parameter]
+ public string TextId { get; set; } = "elsa-loading-text";
+
+ ///
+ /// The initial loading text. Default is "Initializing...".
+ ///
+ [Parameter]
+ public string Text { get; set; } = "Initializing...";
+}
diff --git a/src/framework/Elsa.Studio.Shared/Components/Hosting/ElsaStudioScripts.razor b/src/framework/Elsa.Studio.Shared/Components/Hosting/ElsaStudioScripts.razor
new file mode 100644
index 000000000..2457c3cb0
--- /dev/null
+++ b/src/framework/Elsa.Studio.Shared/Components/Hosting/ElsaStudioScripts.razor
@@ -0,0 +1,47 @@
+@namespace Elsa.Studio.Shared.Components.Hosting
+
+@*
+ Elsa Studio Scripts Component - Includes all required JavaScript libraries.
+ Usage:
+ /// The Blazor hosting mode (Server or WebAssembly).
+ ///
+ [Parameter]
+ public BlazorHostingMode Mode { get; set; } = BlazorHostingMode.Server;
+
+ ///
+ /// For WebAssembly mode, whether to auto-start Blazor. Default is true.
+ /// Set to false if you need to configure Blazor startup manually.
+ ///
+ [Parameter]
+ public bool AutoStart { get; set; } = true;
+}
diff --git a/src/framework/Elsa.Studio.Shared/Components/Hosting/README.md b/src/framework/Elsa.Studio.Shared/Components/Hosting/README.md
new file mode 100644
index 000000000..0df538f8b
--- /dev/null
+++ b/src/framework/Elsa.Studio.Shared/Components/Hosting/README.md
@@ -0,0 +1,207 @@
+# Elsa Studio Hosting Components
+
+This document explains how to use the reusable hosting components provided in the `Elsa.Studio.Shared` package.
+
+## Overview
+
+The hosting components simplify integration of Elsa Studio by providing complete, reusable loaders that handle:
+- CSS link references
+- JavaScript library includes
+- Loading screen UI
+- Blazor initialization scripts
+
+## Quick Start - Minimal Integration
+
+### For Blazor Server
+
+Simply add one script tag in your `_Host.cshtml`:
+
+```cshtml
+
+
+
+ Elsa Studio
+
+ An error has occurred.
+
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+
🗙
+
Elsa Studio
+
+
+
+
+
+ An unhandled error has occurred.
+
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+
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+
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+
+
+
+
+
+ An unhandled error has occurred.
+
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+
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+
+/// Provides logout functionality for the current authentication provider.
+///
+public interface ILogoutService
+{
+ ///
+ /// Performs logout for the current authentication provider.
+ ///
+ /// A task representing the asynchronous logout operation.
+ Task LogoutAsync();
+}
\ No newline at end of file
diff --git a/src/framework/Elsa.Studio.Shared/Extensions/ServiceCollectionExtensions.cs b/src/framework/Elsa.Studio.Shared/Extensions/ServiceCollectionExtensions.cs
index a30c6e31f..57f6c324e 100644
--- a/src/framework/Elsa.Studio.Shared/Extensions/ServiceCollectionExtensions.cs
+++ b/src/framework/Elsa.Studio.Shared/Extensions/ServiceCollectionExtensions.cs
@@ -4,6 +4,7 @@
using Elsa.Studio.Localization.Time.Providers;
using Elsa.Studio.Monaco.Handlers;
using Elsa.Studio.Services;
+using Elsa.Studio.Shared.Services;
using Microsoft.Extensions.DependencyInjection;
using Radzen;
@@ -30,6 +31,9 @@ public static IServiceCollection AddSharedServices(this IServiceCollection servi
services.AddScoped();
services.AddScoped();
+ // Default logout service (can be overridden by authentication modules)
+ services.AddScoped();
+
// Required for the Radzen.Blazor.RadzenHtmlEditorLink component to work.
services.AddRadzenComponents();
diff --git a/src/framework/Elsa.Studio.Shared/Layouts/MainLayout.razor.cs b/src/framework/Elsa.Studio.Shared/Layouts/MainLayout.razor.cs
index de161ddf6..7fb32e10c 100644
--- a/src/framework/Elsa.Studio.Shared/Layouts/MainLayout.razor.cs
+++ b/src/framework/Elsa.Studio.Shared/Layouts/MainLayout.razor.cs
@@ -5,6 +5,7 @@
using Microsoft.AspNetCore.Components;
using Microsoft.AspNetCore.Components.Authorization;
using Microsoft.AspNetCore.Components.Web;
+using Microsoft.Extensions.DependencyInjection;
using MudBlazor;
namespace Elsa.Studio.Layouts;
@@ -16,6 +17,7 @@ public partial class MainLayout : IDisposable
{
private bool _drawerOpen = true;
private ErrorBoundary? _errorBoundary;
+ private AuthenticationState? _currentAuthState;
[Inject] private IThemeService ThemeService { get; set; } = null!;
[Inject] private IAppBarService AppBarService { get; set; } = null!;
@@ -25,12 +27,78 @@ public partial class MainLayout : IDisposable
[Inject] private IDialogService DialogService { get; set; } = null!;
[Inject] private IBrandingProvider BrandingProvider { get; set; } = null!;
[Inject] private IServiceProvider ServiceProvider { get; set; } = null!;
+ [Inject] private AuthenticationStateProvider AuthenticationStateProvider { get; set; } = null!;
[CascadingParameter] private Task? AuthenticationState { get; set; }
+
private MudTheme CurrentTheme => ThemeService.CurrentTheme;
private bool IsDarkMode => ThemeService.IsDarkMode;
- private RenderFragment UnauthorizedComponent => UnauthorizedComponentProvider.GetUnauthorizedComponent();
+
+ // Smart unauthorized component that checks authentication state
+ private RenderFragment UnauthorizedComponent => GetSmartUnauthorizedComponent();
private RenderFragment DisplayError(Exception context) => ErrorComponentProvider.GetErrorComponent(context);
+ ///
+ /// Returns unauthorized component only if user is not authenticated.
+ /// Prevents login modal from appearing when user is already logged in.
+ ///
+ private RenderFragment GetSmartUnauthorizedComponent()
+ {
+ return builder =>
+ {
+ // Only show unauthorized component if user is genuinely not authenticated
+ if (_currentAuthState?.User?.Identity?.IsAuthenticated != true)
+ {
+ // User is not authenticated - show login
+ var unauthorizedFragment = UnauthorizedComponentProvider.GetUnauthorizedComponent();
+ unauthorizedFragment(builder);
+ }
+ else
+ {
+ // User is authenticated but got unauthorized exception - show error message instead
+ builder.OpenElement(0, "div");
+ builder.AddAttribute(1, "class", "d-flex flex-column align-center justify-center pa-8");
+ builder.AddAttribute(2, "style", "min-height: 300px;");
+
+ builder.OpenElement(3, "div");
+ builder.AddAttribute(4, "class", "mb-4");
+ builder.OpenComponent(5);
+ builder.AddAttribute(6, "Icon", Icons.Material.Filled.Warning);
+ builder.AddAttribute(7, "Color", Color.Warning);
+ builder.AddAttribute(8, "Size", Size.Large);
+ builder.CloseComponent();
+ builder.CloseElement();
+
+ builder.OpenElement(9, "h3");
+ builder.AddAttribute(10, "class", "mb-2");
+ builder.AddContent(11, "Access Temporarily Unavailable");
+ builder.CloseElement();
+
+ builder.OpenElement(12, "p");
+ builder.AddAttribute(13, "class", "text-center mb-4");
+ builder.AddContent(14, "You don't have permission to access this resource right now. This might be temporary - please try refreshing the page.");
+ builder.CloseElement();
+
+ builder.OpenComponent(15);
+ builder.AddAttribute(16, "Variant", Variant.Filled);
+ builder.AddAttribute(17, "Color", Color.Primary);
+ builder.AddAttribute(18, "OnClick", EventCallback.Factory.Create(this, RefreshPage));
+ builder.AddContent(19, "Refresh Page");
+ builder.CloseComponent();
+
+ builder.CloseElement();
+ }
+ };
+ }
+
+ ///
+ /// Refreshes the current page
+ ///
+ private void RefreshPage()
+ {
+ var navigationManager = ServiceProvider.GetRequiredService();
+ navigationManager.NavigateTo(navigationManager.Uri, forceLoad: true);
+ }
+
/// (15);
AppBarService.AddComponent(20);
AppBarService.AddComponent(25);
+ AppBarService.AddComponent(99);
ThemeService.CurrentThemeChanged += OnThemeChanged;
ThemeService.IsDarkModeChanged += OnDarkModeChanged;
@@ -47,15 +116,36 @@ protected override void OnInitialized()
///
+ /// Handles authentication state changes to update the current state
+ ///
+ private async void OnAuthenticationStateChanged(Task authStateTask)
+ {
+ try
+ {
+ _currentAuthState = await authStateTask;
+ await InvokeAsync(StateHasChanged);
+ }
+ catch (Exception ex)
+ {
+ // Log error but don't crash the app
+ Console.WriteLine($"Error updating authentication state: {ex.Message}");
+ }
}
///
+/// Configuration model for authentication token names and storage keys.
+///
+public class AuthenticationStorageOptions
+{
+ public const string SectionName = "Authentication:StorageKeys";
+
+ ///
+ /// Local storage key for authentication tokens.
+ ///
+ public string AuthToken { get; set; } = "authToken";
+
+ ///
+ /// Local storage key for OIDC user information.
+ ///
+ public string OidcUser { get; set; } = "oidc.user";
+
+ ///
+ /// Local storage key for user information.
+ ///
+ public string User { get; set; } = "user";
+
+ ///
+ /// Local storage key for authentication expiry information.
+ ///
+ public string AuthExpiry { get; set; } = "authExpiry";
+}
\ No newline at end of file
diff --git a/src/framework/Elsa.Studio.Shared/Models/RoutesOptions.cs b/src/framework/Elsa.Studio.Shared/Models/RoutesOptions.cs
new file mode 100644
index 000000000..ff8e0fed2
--- /dev/null
+++ b/src/framework/Elsa.Studio.Shared/Models/RoutesOptions.cs
@@ -0,0 +1,24 @@
+namespace Elsa.Studio.Shared.Models;
+
+///
+/// Configuration model for application routes and navigation paths.
+///
+public class RoutesOptions
+{
+ public const string SectionName = "Routes";
+
+ ///
+ /// Path to the login page.
+ ///
+ public string LoginPath { get; set; } = "/login";
+
+ ///
+ /// Path to the authentication logout endpoint.
+ ///
+ public string AuthenticationLogoutPath { get; set; } = "/authentication/logout";
+
+ ///
+ /// Path to the home page (used for redirect after login).
+ ///
+ public string HomePage { get; set; } = "/";
+}
\ No newline at end of file
diff --git a/src/framework/Elsa.Studio.Shared/Services/DefaultLogoutService.cs b/src/framework/Elsa.Studio.Shared/Services/DefaultLogoutService.cs
new file mode 100644
index 000000000..b2bef56ac
--- /dev/null
+++ b/src/framework/Elsa.Studio.Shared/Services/DefaultLogoutService.cs
@@ -0,0 +1,53 @@
+using Elsa.Studio.Contracts;
+using Elsa.Studio.Shared.Models;
+using Microsoft.AspNetCore.Components;
+using Microsoft.Extensions.Configuration;
+using Microsoft.JSInterop;
+
+namespace Elsa.Studio.Shared.Services;
+
+///
+/// Default logout service that navigates to the login page using Blazor's NavigationManager.
+/// This provides a smooth SPA transition without full page reloads.
+///
+public class DefaultLogoutService(NavigationManager navigationManager, IJSRuntime jsRuntime, IConfiguration configuration) : ILogoutService
+{
+ /// ("Routes:LoginPath") ?? "/login";
+ navigationManager.NavigateTo(loginPath, forceLoad: false, replace: true);
+ }
+
+ private async Task ClearClientStateAsync()
+ {
+ try
+ {
+ // Get storage keys from configuration with fallbacks
+ var authTokenKey = configuration.GetValue("Authentication:StorageKeys:AuthToken") ?? "authToken";
+
+ // Clear localStorage/sessionStorage if used for auth tokens
+ await jsRuntime.InvokeVoidAsync("localStorage.removeItem", authTokenKey);
+ await jsRuntime.InvokeVoidAsync("sessionStorage.clear");
+ }
+ catch (JSException)
+ {
+ // Handle JS errors gracefully
+ }
+ }
+}
\ No newline at end of file
diff --git a/src/framework/Elsa.Studio.Shared/wwwroot/css/elsa-loading.css b/src/framework/Elsa.Studio.Shared/wwwroot/css/elsa-loading.css
new file mode 100644
index 000000000..0d70f675c
--- /dev/null
+++ b/src/framework/Elsa.Studio.Shared/wwwroot/css/elsa-loading.css
@@ -0,0 +1,41 @@
+/* Elsa Studio Loading Screen Styles */
+#elsa-loading {
+ position: fixed;
+ top: 0;
+ left: 0;
+ width: 100%;
+ height: 100%;
+ background: #f5f5f5;
+ display: flex;
+ justify-content: center;
+ align-items: center;
+ z-index: 9999;
+}
+
+#elsa-loading > div {
+ text-align: center;
+}
+
+#elsa-loading-spinner {
+ width: 40px;
+ height: 40px;
+ border: 4px solid #e0e0e0;
+ border-top: 4px solid #1976d2;
+ border-radius: 50%;
+ animation: elsa-loading-spin 1s linear infinite;
+ margin: 0 auto 20px;
+}
+
+#elsa-loading-text {
+ color: #666;
+ font-family: 'Roboto', sans-serif;
+}
+
+@keyframes elsa-loading-spin {
+ 0% { transform: rotate(0deg); }
+ 100% { transform: rotate(360deg); }
+}
+
+.blazor-ready #elsa-loading {
+ display: none !important;
+}
diff --git a/src/framework/Elsa.Studio.Shared/wwwroot/js/elsa-studio-init.js b/src/framework/Elsa.Studio.Shared/wwwroot/js/elsa-studio-init.js
new file mode 100644
index 000000000..e2b7d2184
--- /dev/null
+++ b/src/framework/Elsa.Studio.Shared/wwwroot/js/elsa-studio-init.js
@@ -0,0 +1,86 @@
+/**
+ * Elsa Studio Initialization Module
+ * Provides utilities for managing loading screens and Blazor initialization
+ */
+
+(function() {
+ 'use strict';
+
+ let loadingHidden = false;
+ let blazorStartAttempted = false;
+
+ /**
+ * Hides the loading screen by adding 'blazor-ready' class to body
+ */
+ function hideLoadingScreen() {
+ if (!loadingHidden) {
+ loadingHidden = true;
+ document.body.classList.add('blazor-ready');
+ }
+ }
+
+ /**
+ * Updates the loading text
+ * @param {string} text - The text to display
+ */
+ function updateLoadingText(text) {
+ const loadingTextEl = document.getElementById('elsa-loading-text');
+ if (loadingTextEl) {
+ loadingTextEl.textContent = text;
+ }
+ }
+
+ /**
+ * Initializes Blazor WebAssembly with optional configuration
+ * @param {object} config - Blazor configuration options
+ */
+ function initializeBlazorWasm(config) {
+ if (typeof Blazor === 'undefined') {
+ updateLoadingText('Blazor not loaded');
+ setTimeout(hideLoadingScreen, 2000);
+ return;
+ }
+
+ if (!blazorStartAttempted) {
+ blazorStartAttempted = true;
+ updateLoadingText('Starting...');
+
+ Blazor.start(config || {}).then(() => {
+ updateLoadingText('Loading application...');
+ }).catch((error) => {
+ if (error.message && error.message.includes('already started')) {
+ setTimeout(hideLoadingScreen, 100);
+ } else {
+ console.error('Blazor startup failed:', error);
+ updateLoadingText('Startup failed');
+ setTimeout(hideLoadingScreen, 2000);
+ }
+ });
+ }
+ }
+
+ /**
+ * Initializes Blazor Server
+ * Sets up a fallback timeout to hide loading screen
+ * @param {number} maxWaitMs - Maximum time to wait before hiding loading screen
+ */
+ function initializeBlazorServer(maxWaitMs) {
+ maxWaitMs = maxWaitMs || 10000;
+ setTimeout(function() {
+ hideLoadingScreen();
+ }, maxWaitMs);
+ }
+
+ // Expose functions to window for Blazor components to call
+ window.ElsaStudio = window.ElsaStudio || {};
+ window.ElsaStudio.hideLoading = hideLoadingScreen;
+ window.ElsaStudio.updateLoadingText = updateLoadingText;
+ window.ElsaStudio.initializeBlazorWasm = initializeBlazorWasm;
+ window.ElsaStudio.initializeBlazorServer = initializeBlazorServer;
+
+ // Legacy compatibility - keep existing function names
+ window.hideAuthLoading = hideLoadingScreen;
+ window.hideWasmLoading = hideLoadingScreen;
+ window.updateLoadingStatus = updateLoadingText;
+
+})();
diff --git a/src/framework/Elsa.Studio.Shared/wwwroot/js/elsa-studio-loader-hosted-wasm.js b/src/framework/Elsa.Studio.Shared/wwwroot/js/elsa-studio-loader-hosted-wasm.js
new file mode 100644
index 000000000..ae2070d5d
--- /dev/null
+++ b/src/framework/Elsa.Studio.Shared/wwwroot/js/elsa-studio-loader-hosted-wasm.js
@@ -0,0 +1,90 @@
+/**
+ * Elsa Studio Loader for Blazor Hosted WebAssembly
+ * Uses ElsaStudioCore for shared functionality with custom configuration support
+ */
+
+(function() {
+ 'use strict';
+
+ if (!window.ElsaStudioCore) {
+ console.error('ElsaStudioCore not found. Make sure elsa-studio-core.js is loaded first.');
+ return;
+ }
+
+ let blazorStartAttempted = false;
+
+ // Initialize Blazor with client config for hosted scenarios
+ function initializeBlazorWasm() {
+ if (typeof Blazor === 'undefined') {
+ setTimeout(initializeBlazorWasm, 100);
+ return;
+ }
+
+ if (!blazorStartAttempted && ElsaStudioCore.monacoReady && ElsaStudioCore.scriptsReady) {
+ blazorStartAttempted = true;
+ ElsaStudioCore.updateProgress(98);
+ ElsaStudioCore.updateLoadingText('Configuring application...');
+
+ // Get client configuration if available
+ const config = window.getClientConfig ? window.getClientConfig() : {};
+
+ const blazorConfig = {};
+ if (config.apiUrl) {
+ blazorConfig.configureServices = function(services) {
+ services.set('apiUrl', config.apiUrl);
+ };
+ }
+
+ Blazor.start(blazorConfig).then(() => {
+ console.log('Blazor Hosted WASM started successfully with config:', config);
+ ElsaStudioCore.updateProgress(100);
+ ElsaStudioCore.updateLoadingText('Ready');
+ setTimeout(ElsaStudioCore.hideLoadingScreen, 300);
+ }).catch((error) => {
+ console.error('Blazor startup failed:', error);
+ if (!error.message?.includes('already started')) {
+ ElsaStudioCore.updateLoadingText('Startup failed - reloading...');
+ setTimeout(() => location.reload(), 3000);
+ } else {
+ ElsaStudioCore.hideLoadingScreen();
+ }
+ });
+ } else if (!ElsaStudioCore.monacoReady || !ElsaStudioCore.scriptsReady) {
+ setTimeout(initializeBlazorWasm, 100);
+ }
+ }
+
+ // Initialize with hosted WASM optimizations
+ function init() {
+ ElsaStudioCore.initialize({
+ additionalScripts: [], // Hosted WASM has minimal additional scripts
+ onProgress: (percentage, status) => {
+ // Hosted WASM specific messages
+ if (percentage >= 80) {
+ ElsaStudioCore.updateLoadingText('Loading hosted application...');
+ }
+ },
+ onScriptsLoaded: () => {
+ ElsaStudioCore.updateLoadingText('Initializing configuration...');
+ setTimeout(initializeBlazorWasm, 100);
+ },
+ fallbackTimeout: 18000 // Hosted WASM is usually faster than standalone
+ });
+ }
+
+ // Run initialization
+ if (document.readyState === 'loading') {
+ document.addEventListener('DOMContentLoaded', init);
+ } else {
+ init();
+ }
+
+ // Expose API
+ window.ElsaStudio = window.ElsaStudio || {};
+ window.ElsaStudio.hideLoading = ElsaStudioCore.hideLoadingScreen;
+ window.ElsaStudio.forceReady = function() {
+ console.log('Forcing Blazor Hosted WASM readiness');
+ ElsaStudioCore.hideLoadingScreen();
+ };
+
+})();
\ No newline at end of file
diff --git a/src/framework/Elsa.Studio.Shared/wwwroot/js/elsa-studio-loader-server.js b/src/framework/Elsa.Studio.Shared/wwwroot/js/elsa-studio-loader-server.js
new file mode 100644
index 000000000..8f572ea3e
--- /dev/null
+++ b/src/framework/Elsa.Studio.Shared/wwwroot/js/elsa-studio-loader-server.js
@@ -0,0 +1,246 @@
+/**
+ * Elsa Studio Loader for Blazor Server - Simplified for reliability
+ * Focuses on loading remaining scripts and managing loading screen
+ */
+
+(function() {
+ 'use strict';
+
+ if (!window.ElsaStudioCore) {
+ console.error('ElsaStudioCore not found. Make sure elsa-studio-core.js is loaded first.');
+ return;
+ }
+
+ let blazorReady = false;
+ let initialRenderComplete = false;
+ let mudBlazorReady = false;
+ let authenticationReady = false;
+
+ // Check if MudBlazor JavaScript is properly loaded
+ function checkMudBlazorReady() {
+ // Check for MudBlazor global objects
+ if (typeof window.mudElementRef !== 'undefined' ||
+ typeof window.MudBlazor !== 'undefined' ||
+ document.querySelector('script[src*="MudBlazor.min.js"]')) {
+
+ console.log('MudBlazor JavaScript detected');
+ mudBlazorReady = true;
+ return true;
+ }
+
+ // Give it some time to initialize
+ setTimeout(() => {
+ console.log('MudBlazor timeout - assuming ready');
+ mudBlazorReady = true;
+ checkReadiness();
+ }, 2000);
+
+ return false;
+ }
+
+ // Check authentication state before hiding loading screen
+ function checkAuthenticationReady() {
+ // First, check if we're in the middle of an authentication redirect
+ const currentUrl = window.location.href;
+ const isAuthRedirect = currentUrl.includes('/authentication/') ||
+ currentUrl.includes('code=') ||
+ currentUrl.includes('state=') ||
+ currentUrl.includes('returnUrl=');
+
+ if (isAuthRedirect) {
+ console.log('Authentication redirect in progress - waiting...');
+ return false; // Don't hide loading screen during auth redirects
+ }
+
+ // Look for authentication indicators in the DOM
+ const authIndicators = [
+ '.mud-appbar', // Main app bar usually appears when authenticated
+ '.elsa-main-layout',
+ '.authenticated-content',
+ '.mud-layout main', // Main content area
+ '.workflows-page', // Specific to Elsa Studio authenticated pages
+ '.dashboard-page'
+ ];
+
+ // Check if we're still on a login page
+ const loginIndicators = [
+ '.login-form',
+ '.authentication-form',
+ 'form[action*="login"]',
+ '.login-page',
+ '.auth-container'
+ ];
+
+ const hasAuthContent = authIndicators.some(selector => {
+ const element = document.querySelector(selector);
+ return element && element.offsetHeight > 0;
+ });
+
+ const hasLoginContent = loginIndicators.some(selector => {
+ const element = document.querySelector(selector);
+ return element && element.offsetHeight > 0;
+ });
+
+ // If we have authenticated content and no login content
+ if (hasAuthContent && !hasLoginContent) {
+ console.log('Authentication state confirmed - user is logged in with app content');
+ authenticationReady = true;
+ return true;
+ }
+
+ // If we're on login page, that's also a valid state
+ if (hasLoginContent && !hasAuthContent) {
+ console.log('Login page detected - user needs to authenticate');
+ authenticationReady = true;
+ return true;
+ }
+
+ // If neither are clearly present, wait longer
+ console.log('Authentication state unclear - waiting for content to appear...');
+ return false;
+ }
+
+ // Check if we should hide loading screen
+ function checkReadiness() {
+ if (blazorReady && initialRenderComplete && mudBlazorReady && authenticationReady && ElsaStudioCore.monacoReady && !ElsaStudioCore.isLoadingHidden) {
+ ElsaStudioCore.updateProgress(100);
+ ElsaStudioCore.updateLoadingText('Ready!');
+ setTimeout(ElsaStudioCore.hideLoadingScreen, 500); // Slightly longer delay for auth
+ }
+ }
+
+ // Simplified Blazor detection - since blazor.server.js is already loaded
+ function detectBlazorConnection() {
+ // Check if Blazor is already available
+ if (typeof window.Blazor !== 'undefined') {
+ console.log('Blazor Server detected');
+ blazorReady = true;
+ checkReadiness();
+ return;
+ }
+
+ // Monitor for Blazor availability
+ let checkCount = 0;
+ const checkInterval = setInterval(() => {
+ checkCount++;
+
+ if (typeof window.Blazor !== 'undefined') {
+ console.log('Blazor Server became available');
+ blazorReady = true;
+ checkReadiness();
+ clearInterval(checkInterval);
+ } else if (checkCount > 50) { // 5 seconds max
+ console.log('Blazor Server timeout - assuming ready');
+ blazorReady = true;
+ checkReadiness();
+ clearInterval(checkInterval);
+ }
+ }, 100);
+ }
+
+ // Simplified render detection with authentication awareness
+ function detectRenderCompletion() {
+ // Check for main UI elements
+ function checkForUI() {
+ const indicators = [
+ '.mud-main-content',
+ '.mud-layout',
+ '.mud-appbar',
+ 'main',
+ '[role="main"]'
+ ];
+
+ return indicators.some(selector => {
+ const element = document.querySelector(selector);
+ if (element && element.offsetHeight > 0) {
+ console.log(`UI detected: ${selector}`);
+ return true;
+ }
+ return false;
+ });
+ }
+
+ // Check periodically
+ let checkCount = 0;
+ let authCheckAttempts = 0;
+ const maxAuthCheckAttempts = 10;
+
+ const checkInterval = setInterval(() => {
+ checkCount++;
+
+ if (checkForUI()) {
+ initialRenderComplete = true;
+
+ // Keep checking authentication state with retry logic
+ const authCheckInterval = setInterval(() => {
+ authCheckAttempts++;
+
+ if (checkAuthenticationReady()) {
+ console.log('Authentication check passed');
+ clearInterval(authCheckInterval);
+ checkReadiness();
+ } else if (authCheckAttempts >= maxAuthCheckAttempts) {
+ console.log('Authentication check timeout - proceeding anyway');
+ authenticationReady = true;
+ clearInterval(authCheckInterval);
+ checkReadiness();
+ }
+ }, 500); // Check every 500ms
+
+ clearInterval(checkInterval);
+ } else if (checkCount > 100) { // 10 seconds max
+ console.log('UI detection timeout - assuming ready');
+ initialRenderComplete = true;
+ authenticationReady = true;
+ checkReadiness();
+ clearInterval(checkInterval);
+ }
+ }, 100);
+ }
+
+ // Initialize with only Monaco and BlazorMonaco scripts (MudBlazor scripts now loaded in HTML)
+ function init() {
+ ElsaStudioCore.initialize({
+ additionalScripts: [
+ // Only Monaco-related scripts since MudBlazor is already loaded
+ '_content/BlazorMonaco/jsInterop.js'
+ ],
+ onScriptsLoaded: () => {
+ ElsaStudioCore.updateLoadingText('Initializing components...');
+
+ // Check MudBlazor readiness first
+ checkMudBlazorReady();
+
+ // Give MudBlazor components time to initialize
+ setTimeout(() => {
+ ElsaStudioCore.updateLoadingText('Starting components');
+ detectBlazorConnection();
+ }, 200);
+
+ setTimeout(() => {
+ ElsaStudioCore.updateLoadingText('Handling security');
+ detectRenderCompletion();
+ }, 800);
+ },
+ fallbackTimeout: 8000
+ });
+ }
+
+ // Run initialization
+ if (document.readyState === 'loading') {
+ document.addEventListener('DOMContentLoaded', init);
+ } else {
+ init();
+ }
+
+ // Expose API
+ window.ElsaStudio = window.ElsaStudio || {};
+ window.ElsaStudio.hideLoading = ElsaStudioCore.hideLoadingScreen;
+ window.ElsaStudio.forceReady = function() {
+ console.log('Forcing readiness');
+ blazorReady = true;
+ initialRenderComplete = true;
+ checkReadiness();
+ };
+
+})();
\ No newline at end of file
diff --git a/src/framework/Elsa.Studio.Shared/wwwroot/js/elsa-studio-loader-wasm.js b/src/framework/Elsa.Studio.Shared/wwwroot/js/elsa-studio-loader-wasm.js
new file mode 100644
index 000000000..4bea7d8a2
--- /dev/null
+++ b/src/framework/Elsa.Studio.Shared/wwwroot/js/elsa-studio-loader-wasm.js
@@ -0,0 +1,86 @@
+/**
+ * Elsa Studio Loader for Blazor WebAssembly
+ * Uses ElsaStudioCore for shared functionality with optimized WASM startup
+ */
+
+(function() {
+ 'use strict';
+
+ if (!window.ElsaStudioCore) {
+ console.error('ElsaStudioCore not found. Make sure elsa-studio-core.js is loaded first.');
+ return;
+ }
+
+ let blazorStartAttempted = false;
+
+ // Initialize Blazor WASM with proper sequencing
+ function initializeBlazorWasm(config) {
+ if (typeof Blazor === 'undefined') {
+ setTimeout(() => initializeBlazorWasm(config), 100);
+ return;
+ }
+
+ if (!blazorStartAttempted && ElsaStudioCore.monacoReady && ElsaStudioCore.scriptsReady) {
+ blazorStartAttempted = true;
+ ElsaStudioCore.updateProgress(98);
+ ElsaStudioCore.updateLoadingText('Starting application...');
+
+ Blazor.start(config || {}).then(() => {
+ console.log('Blazor WASM started successfully');
+ ElsaStudioCore.updateProgress(100);
+ ElsaStudioCore.updateLoadingText('Ready');
+ setTimeout(ElsaStudioCore.hideLoadingScreen, 300);
+ }).catch((error) => {
+ console.error('Blazor WASM startup failed:', error);
+ if (!error.message?.includes('already started')) {
+ ElsaStudioCore.updateLoadingText('Startup failed - reloading...');
+ setTimeout(() => location.reload(), 3000);
+ } else {
+ ElsaStudioCore.hideLoadingScreen();
+ }
+ });
+ } else if (!ElsaStudioCore.monacoReady || !ElsaStudioCore.scriptsReady) {
+ // Wait for dependencies
+ setTimeout(() => initializeBlazorWasm(config), 100);
+ }
+ }
+
+ // Initialize with WASM-specific optimizations
+ function init() {
+ ElsaStudioCore.initialize({
+ additionalScripts: [
+ '_content/Microsoft.AspNetCore.Components.WebAssembly.Authentication/AuthenticationService.js',
+ '_framework/blazor.webassembly.js'
+ ],
+ onProgress: (percentage, status) => {
+ // WASM-specific progress messages
+ if (percentage >= 80) {
+ ElsaStudioCore.updateLoadingText('Loading WebAssembly...');
+ }
+ },
+ onScriptsLoaded: () => {
+ ElsaStudioCore.updateLoadingText('Preparing WebAssembly...');
+ // Give WASM a moment to initialize before starting Blazor
+ setTimeout(() => initializeBlazorWasm(), 200);
+ },
+ fallbackTimeout: 20000 // WASM needs more time than Server
+ });
+ }
+
+ // Run initialization
+ if (document.readyState === 'loading') {
+ document.addEventListener('DOMContentLoaded', init);
+ } else {
+ init();
+ }
+
+ // Expose API
+ window.ElsaStudio = window.ElsaStudio || {};
+ window.ElsaStudio.hideLoading = ElsaStudioCore.hideLoadingScreen;
+ window.ElsaStudio.initializeBlazorWasm = initializeBlazorWasm;
+ window.ElsaStudio.forceReady = function() {
+ console.log('Forcing Blazor WASM readiness');
+ ElsaStudioCore.hideLoadingScreen();
+ };
+
+})();
\ No newline at end of file
diff --git a/src/framework/Elsa.Studio.Shell/App.razor b/src/framework/Elsa.Studio.Shell/App.razor
index cc7a2575f..2c04e1c5b 100644
--- a/src/framework/Elsa.Studio.Shell/App.razor
+++ b/src/framework/Elsa.Studio.Shell/App.razor
@@ -1,24 +1,47 @@
@inherits StudioComponentBase
+@inject IJSRuntime JSRuntime
+@inject NavigationManager Navigation
+@using System.Reflection
+
+ @{
+ // Check if current route is login page
+ var isLoginPage = IsLoginRoute(routeData);
+ var layoutType = isLoginPage ? typeof(BasicLayout) : typeof(MainLayout);
+ }
+
@if (!AuthorizationIsDisabled)
{
-
+
-
- Authorizing
-
+ @if (!isLoginPage)
+ {
+
+
+
+
Checking authentication...
+
+
- @UnauthorizedComponentProvider.GetUnauthorizedComponent()
+ @if (isLoginPage)
+ {
+
}
else
{
-
+
}
+
+
+
+@code {
+ protected override async Task OnAfterRenderAsync(bool firstRender)
+ {
+ if (firstRender)
+ {
+ // Only hide loading screens if NOT on login page
+ var currentUri = Navigation.Uri;
+ var isLoginPage = currentUri.Contains("/login", StringComparison.OrdinalIgnoreCase);
+
+ if (!isLoginPage)
+ {
+ // Hide the initial loading screen after the first render
+ try
+ {
+ await Task.Delay(300); // Small delay to ensure smooth transition
+
+ // Try both Server and WASM hiding functions (one will work, one will be ignored)
+ await JSRuntime.InvokeVoidAsync("hideAuthLoading"); // Server
+ await JSRuntime.InvokeVoidAsync("hideWasmLoading"); // WASM
+ }
+ catch (Exception ex)
+ {
+ Console.WriteLine($"Failed to call loading screen hide functions: {ex.Message}");
+ }
+ }
+ }
+ }
+
+ private bool IsLoginRoute(RouteData routeData)
+ {
+ // Check if the current route is the login page
+ var routeTemplate = routeData.PageType.GetCustomAttribute()?.Template;
+ return routeTemplate?.Equals("/login", StringComparison.OrdinalIgnoreCase) == true ||
+ Navigation.Uri.Contains("/login", StringComparison.OrdinalIgnoreCase);
+ }
+}
diff --git a/src/framework/Elsa.Studio.Shell/Components/AuthenticationWrapper.razor b/src/framework/Elsa.Studio.Shell/Components/AuthenticationWrapper.razor
new file mode 100644
index 000000000..e69de29bb
diff --git a/src/hosts/Elsa.Studio.Host.HostedWasm/Pages/_Host.cshtml b/src/hosts/Elsa.Studio.Host.HostedWasm/Pages/_Host.cshtml
index 7419d248a..12474f346 100644
--- a/src/hosts/Elsa.Studio.Host.HostedWasm/Pages/_Host.cshtml
+++ b/src/hosts/Elsa.Studio.Host.HostedWasm/Pages/_Host.cshtml
@@ -1,4 +1,4 @@
-@page "/"
+ @page "/"
@using Elsa.Studio.Branding
@addTagHelper *, Microsoft.AspNetCore.Mvc.TagHelpers
@inject IConfiguration Configuration;
@@ -18,58 +18,34 @@
Elsa Studio 3
+ Elsa Studio
An unhandled error has occurred.
Reload
🗙