Support desktop move

Desktops can now be moved to specified index.
Close #16.

Author: AkazaRenn

.gitignore

@@ -25,6 +25,9 @@ bld/
 # Visual Studo 2015 cache/options directory
 .vs/
 
+# Visual Studo Code cache/options directory
+.vscode/
+
 # MSTest test Results
 [Tt]est[Rr]esult*/
 [Bb]uild[Ll]og.*
@@ -129,7 +132,7 @@ publish/
 # Publish Web Output
 *.[Pp]ublish.xml
 *.azurePubxml
-# TODO: Comment the next line if you want to checkin your web deploy settings 
+# TODO: Comment the next line if you want to checkin your web deploy settings
 # but database connection strings (with potential passwords) will be unencrypted
 *.pubxml
 *.publishproj

samples/VirtualDesktop.Showcase/MainWindow.xaml

@@ -38,6 +38,10 @@
                                 Click="SwitchRight" />
                         <Button Content="Remove"
                                 Click="Remove" />
+                        <Button Content="Move left"
+                                Click="MoveLeft" />
+                        <Button Content="Move right"
+                                Click="MoveRight" />
                     </StackPanel>
                 </GroupBox>
 

samples/VirtualDesktop.Showcase/MainWindow.xaml.cs

@@ -1,4 +1,4 @@
-using System;
+using System;
 using System.Collections.Generic;
 using System.Collections.ObjectModel;
 using System.ComponentModel;
@@ -224,6 +224,30 @@ private void Remove(object sender, RoutedEventArgs e)
         VirtualDesktop.Current.Remove();
     }
 
+    private void MoveLeft(object sender, RoutedEventArgs e)
+    {
+        foreach (var it in this.Desktops.Select((x, i) => new { Desktop = x, Index = i }))
+        {
+            if (it.Desktop.IsCurrent && it.Index > 0)
+            {
+                Debug.WriteLine($"Moved: {it.Index} -> {it.Index - 1}");
+                VirtualDesktop.Current.Move(it.Index - 1);
+            }
+        }
+    }
+
+    private void MoveRight(object sender, RoutedEventArgs e)
+    {
+        foreach (var it in this.Desktops.Select((x, i) => new { Desktop = x, Index = i }))
+        {
+            if (it.Desktop.IsCurrent && (it.Index < (this.Desktops.Count - 1)))
+            {
+                Debug.WriteLine($"Moved: {it.Index} -> {it.Index + 1}");
+                VirtualDesktop.Current.Move(it.Index + 1);
+            }
+        }
+    }
+
     private void SwitchDesktop(object sender, RoutedEventArgs e)
     {
         if (sender is Button { DataContext: VirtualDesktopViewModel vm })

src/VirtualDesktop/Interop/Build10240_0000/VirtualDesktopManagerInternal.cs

@@ -1,4 +1,4 @@
-using System;
+using System;
 using System.Collections.Generic;
 using System.Runtime.CompilerServices;
 using WindowsDesktop.Interop.Proxy;
@@ -45,6 +45,9 @@ public IVirtualDesktop CreateDesktop()
     public void SwitchDesktop(IVirtualDesktop desktop)
         => this.InvokeMethod(Args(((VirtualDesktop)desktop).ComObject));
 
+    public void MoveDesktop(IVirtualDesktop pMove, int nIndex)
+        => throw new NotSupportedException();
+
     public void RemoveDesktop(IVirtualDesktop pRemove, IVirtualDesktop pFallbackDesktop)
         => this.InvokeMethod(Args(((VirtualDesktop)pRemove).ComObject, ((VirtualDesktop)pFallbackDesktop).ComObject));
 

src/VirtualDesktop/Interop/Build20348_0000/VirtualDesktopManagerInternal.cs

@@ -1,4 +1,4 @@
-using System;
+using System;
 using System.Collections.Generic;
 using System.Runtime.CompilerServices;
 using WindowsDesktop.Interop.Proxy;
@@ -45,6 +45,10 @@ public IVirtualDesktop CreateDesktop()
     public void SwitchDesktop(IVirtualDesktop desktop)
         => this.InvokeMethod(Args(IntPtr.Zero, ((VirtualDesktop)desktop).ComObject));
 
+
+    public void MoveDesktop(IVirtualDesktop pMove, int nIndex)
+        => throw new NotSupportedException();
+
     public void RemoveDesktop(IVirtualDesktop pRemove, IVirtualDesktop pFallbackDesktop)
         => this.InvokeMethod(Args(((VirtualDesktop)pRemove).ComObject, ((VirtualDesktop)pFallbackDesktop).ComObject));
 

src/VirtualDesktop/Interop/Build22000_0000/VirtualDesktopManagerInternal.cs

@@ -1,4 +1,4 @@
-using System;
+using System;
 using System.Collections.Generic;
 using System.Runtime.CompilerServices;
 using WindowsDesktop.Interop.Proxy;
@@ -45,6 +45,9 @@ public IVirtualDesktop CreateDesktop()
     public void SwitchDesktop(IVirtualDesktop desktop)
         => this.InvokeMethod(Args(IntPtr.Zero, ((VirtualDesktop)desktop).ComObject));
 
+    public void MoveDesktop(IVirtualDesktop pMove, int nIndex)
+        => this.InvokeMethod(Args(((VirtualDesktop)pMove).ComObject, IntPtr.Zero, nIndex));
+
     public void RemoveDesktop(IVirtualDesktop pRemove, IVirtualDesktop pFallbackDesktop)
         => this.InvokeMethod(Args(((VirtualDesktop)pRemove).ComObject, ((VirtualDesktop)pFallbackDesktop).ComObject));
 

src/VirtualDesktop/Interop/Build22621_2215/VirtualDesktopManagerInternal.cs

@@ -1,4 +1,4 @@
-using System;
+using System;
 using System.Collections.Generic;
 using System.Runtime.CompilerServices;
 using WindowsDesktop.Interop.Proxy;
@@ -45,6 +45,9 @@ public IVirtualDesktop CreateDesktop()
     public void SwitchDesktop(IVirtualDesktop desktop)
         => this.InvokeMethod(Args(((VirtualDesktop)desktop).ComObject));
 
+    public void MoveDesktop(IVirtualDesktop pMove, int nIndex)
+        => this.InvokeMethod(Args(((VirtualDesktop)pMove).ComObject, nIndex));
+
     public void RemoveDesktop(IVirtualDesktop pRemove, IVirtualDesktop pFallbackDesktop)
         => this.InvokeMethod(Args(((VirtualDesktop)pRemove).ComObject, ((VirtualDesktop)pFallbackDesktop).ComObject));
 

src/VirtualDesktop/Interop/Proxy/IVirtualDesktopManagerInternal.cs

@@ -20,6 +20,8 @@ public interface IVirtualDesktopManagerInternal
 
     IVirtualDesktop CreateDesktop();
 
+    void MoveDesktop(IVirtualDesktop pMove, int nIndex);
+
     void RemoveDesktop(IVirtualDesktop pRemove, IVirtualDesktop pFallbackDesktop);
 
     void SwitchDesktop(IVirtualDesktop desktop);

src/VirtualDesktop/VirtualDesktop.cs

@@ -149,6 +149,16 @@ public static VirtualDesktop Create()
             .ToVirtualDesktop();
     }
 
+    /// <summary>
+    /// Move the given desktop to another posision.
+    /// </summary>
+    public void Move(int index)
+    {
+        if (index < 0 || index >= GetDesktops().Count()) throw new Exception($"Invalid index: {index}");
+
+        _provider.VirtualDesktopManagerInternal.MoveDesktop(this._source, index);
+    }
+
     /// <summary>
     /// Returns a virtual desktop matching the specified identifier.
     /// </summary>
@@ -344,4 +354,4 @@ public static bool TryGetAppUserModelId(IntPtr hWnd, out string appUserModelId)
     }
 
     #endregion
-}
+}