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make MLEM.Ui not crash on DesktopGL.Core

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This commit is contained in:
Ellpeck 2020-02-24 00:42:01 +01:00
parent 88b467725c
commit 719bdc7176
1 changed files with 11 additions and 2 deletions
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13
MLEM/Extensions/WindowExtensions.cs
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@ -1,4 +1,5 @@
using System;
using System.Linq;
using System.Reflection;
using Microsoft.Xna.Framework;
using Microsoft.Xna.Framework.Input;
@ -13,7 +14,15 @@ namespace MLEM.Extensions {
}
public static bool SupportsTextInput() {
return TextInput != null;
if (TextInput == null)
return false;
// The newest version of DesktopGL.Core made a change where TextInputEventArgs doesn't extend EventArgs
// anymore, making this reflection system incompatible with it. For now, this just disables text input
// meaning that MLEM.Ui text boxes won't work, but at least it won't crash either.
// Let's hope there'll be one last update to DesktopGL that also introduces this change so we can fix this.
if (!typeof(EventArgs).IsAssignableFrom(TextInput.EventHandlerType.GenericTypeArguments.FirstOrDefault()))
return false;
return true;
}
public delegate void TextInputCallback(object sender, Keys key, char character);
@ -30,7 +39,7 @@ namespace MLEM.Extensions {
}
public bool AddToWindow(GameWindow window) {
if (TextInput == null)
if (!SupportsTextInput())
return false;
TextInput.AddEventHandler(window, Delegate.CreateDelegate(TextInput.EventHandlerType, this, Callback));
return true;