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Question by IzzySoft · Feb 23, 2014 at 10:13 AM · editorfocusundoprevent

Can my EditorWindow intercept Undo Redo Keyboard commands?

Is it possible to Intercept/Prevent Ctrl + Z, or Ctrl + Y from being executed by the Scene view if my EditorWindow has the Focus? :)

Ex:

             bool doesThisWinHaveFocus = EditorWindow.focusedWindow == win;
             bool wasUndoRedoPerformed = Event.current.type == EventType.ValidateCommand && Event.current.commandName == "UndoRedoPerformed";
             if( wasUndoRedoPerformed && doesThisWinHaveFocus == true )
             {
                 Event.current.Use();
             }
     
             if( Event.current.type == EventType.keyUp && Event.current.control && Event.current.keyCode == KeyCode.Z )
             {
                 bPerformUndo = true;
                 Event.current.Use();
             }
             else if( Event.current.type == EventType.keyUp && Event.current.control && Event.current.keyCode == KeyCode.Y )
             {
                 bPerformRedo = true;
                 Event.current.Use();
             }
 

Thanks for any help. :)

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avatar image vexe · Feb 23, 2014 at 10:32 AM 0
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$$anonymous$$ay I ask what you're trying to do? why do you want to intercept undo/redo?

avatar image vexe · Feb 23, 2014 at 10:32 AM 0
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For starters, I don't think you could intercept it by checking for "UndoRedoPerformed" because as the name suggests, the operation has been performed.

avatar image IzzySoft · Feb 23, 2014 at 12:25 PM 0
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When i read this page, http://docs.unity3d.com/Documentation/ScriptReference/EventType.ValidateCommand.html, i'm under the impression that it doesnt run until EventType.ExecuteCommand

avatar image IzzySoft · Feb 23, 2014 at 12:28 PM 0
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"why do you want to intercept undo/redo?"

I have a Custom Undo/Redo list i added myself and want to take over the use of Control + Z and Control + Y. The user might be Undoing important changes in the Scene and not know it.

avatar image IzzySoft · Feb 24, 2014 at 12:24 AM 0
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I just know someone will suggest that if i have my heart set on using Ctrl + Z/Y that i should just call Undo.PerformRedo/Undo.PerformUndo after so it can redo/undo any unwanted changes in the Scene. ;)

Ehhh... there must be a better way!?! Right?!? :/

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