finally more structure

OwnChar.App.Desktop/UI/Windows/MainWindow.cs

@@ -1,7 +1,10 @@
 using OwnChar.App.Desktop.Api;
+using OwnChar.App.Desktop.Api.Parameters;
+using OwnChar.Manager;
 using Pilz.Plugins.Advanced;
 using Pilz.Plugins.Advanced.UI.Telerik;
 using System;
+using System.Linq;
 using System.Windows.Forms;
 using Telerik.WinControls.UI;
 
@@ -9,34 +12,81 @@ namespace OwnChar.App.Desktop.UI.Windows
 {
     public partial class MainWindow : RadTabbedForm
     {
+        private readonly OwnCharManager? manager = new();
+
         public MainWindowApi Api { get; }
 
         public MainWindow()
         {
             Api = new(this);
             InitializeComponent();
-            PluginFeatureController.Instance.Features.Get(FeatureCodes.MainTab).InsertItemsTo(radMenuItem2.Items, customClickHandler: MainTabItem_Clicked);
+            PluginFeatureController.Instance.Features.Get(FeatureCodes.QuickAction).InsertItemsTo(radTabbedFormControl1.RightItems, customClickHandler: RightItem_Clicked);
         }
 
         public class MainWindowApi(MainWindow mainWindow) : IMainWindowApi
         {
             public MainWindow MainWindow { get; } = mainWindow;
 
-            public void CloseTab(Control content)
+            public OwnCharManager? Manager => MainWindow.manager;
+
+            public void OpenTab(Control content, string title)
             {
-                throw new NotImplementedException();
+                MainWindow.OpenTab(content, title);
             }
 
-            public void OpenTab(Control content)
+            public void CloseTab(Control content)
             {
-                throw new NotImplementedException();
+                MainWindow.CloseTab(content);
+            }
+
+            public bool IsTabOpen(Control content)
+            {
+                return MainWindow.FindTab(content) != null;
+            }
+
+            public bool IsTabOpen<T>()
+            {
+                return MainWindow.FindTab<T>() != null;
             }
         }
 
-        private void MainTabItem_Clicked(object? sender, EventArgs e)
+        private MainWindowParams GetMainWindowParams()
         {
-            //if (sender is RadMenuItem item && item.Tag is PluginModule module)
-                //...Add() ... module.CreateUI(), "Titel", null);
+            return new MainWindowParams(Api);
+        }
+
+        private void OpenTab(Control content, string title)
+        {
+            var newTab = new RadTabbedFormControlTab();
+            content.Dock = DockStyle.Fill;
+            newTab.Controls.Add(content);
+            newTab.Text = title;
+            newTab.Tag = content;
+            content.Tag = newTab;
+            radTabbedFormControl1.Tabs.Add(newTab);
+            radTabbedFormControl1.SelectedTab = newTab;
+        }
+
+        private void CloseTab(Control content)
+        {
+            if (FindTab(content) is RadTabbedFormControlTab tab)
+                radTabbedFormControl1.Tabs.Remove(tab);
+        }
+
+        private RadTabbedFormControlTab? FindTab(Control content)
+        {
+            return radTabbedFormControl1.Tabs.FirstOrDefault(n => n.Tag == content);
+        }
+
+        private RadTabbedFormControlTab? FindTab<T>()
+        {
+            return radTabbedFormControl1.Tabs.FirstOrDefault(n => n.Tag is T);
+        }
+
+        private void RightItem_Clicked(object? sender, EventArgs e)
+        {
+            if (sender is RadMenuItem item && item.Tag is PluginFunction function)
+                function.Execute(GetMainWindowParams());
         }
     }
 }