From 8b27a08764cf7e9ed09909298961e00ef2763b0e Mon Sep 17 00:00:00 2001
From: david-swift <haenerdavid@icloud.com>
Date: Thu, 11 Apr 2024 20:17:25 +0200
Subject: [PATCH] Add support for spawning windows outside the app

---
 Sources/Adwaita/Model/User Interface/App/App.swift   | 10 +++++++++-
 .../Adwaita/Model/User Interface/App/GTUIApp.swift   | 12 ++++++++++--
 2 files changed, 19 insertions(+), 3 deletions(-)

diff --git a/Sources/Adwaita/Model/User Interface/App/App.swift b/Sources/Adwaita/Model/User Interface/App/App.swift
index 754114c..977d596 100644
--- a/Sources/Adwaita/Model/User Interface/App/App.swift	
+++ b/Sources/Adwaita/Model/User Interface/App/App.swift	
@@ -41,6 +41,14 @@ extension App {
 
     /// The application's entry point.
     public static func main() {
+        let app = setupApp()
+        app.run()
+    }
+
+    /// Initialize and get the GTUI app.
+    ///
+    /// To run the app, call the ``GTUIApp/run()`` function.
+    public static func setupApp() -> GTUIApp {
         var appInstance = self.init()
         appInstance.app = GTUIApp(appInstance.id) { appInstance }
         GTUIApp.updateHandlers.append { force in
@@ -57,7 +65,7 @@ extension App {
             }
         }
         GTUIApp.appID = appInstance.id
-        appInstance.app.run()
+        return appInstance.app
     }
 
 }
diff --git a/Sources/Adwaita/Model/User Interface/App/GTUIApp.swift b/Sources/Adwaita/Model/User Interface/App/GTUIApp.swift
index b8c9a19..853c1c8 100644
--- a/Sources/Adwaita/Model/User Interface/App/GTUIApp.swift	
+++ b/Sources/Adwaita/Model/User Interface/App/GTUIApp.swift	
@@ -48,8 +48,16 @@ public class GTUIApp {
     }
 
     /// Run the application.
-    public func run() {
-        let data = ViewStorage.SignalData { self.onActivate() }
+    /// - Parameters:
+    ///     - automaticSetup: Whether the initial windows should be added.
+    ///     - manualSetup: A closure that is executed in the main loop.
+    public func run(automaticSetup: Bool = true, manualSetup: @escaping () -> Void = { }) {
+        let data = ViewStorage.SignalData {
+            if automaticSetup {
+                self.onActivate()
+            }
+            manualSetup()
+        }
         fields["run"] = data
         g_signal_connect_data(
             pointer?.cast(),