Show custom warning popup when I try to delete specific file

Dear all,

I have two problem with unity editor

1. I want show custom warning popup when delete specific file. Is there anyway to do this?
Ex: When I try to delete .prefab file, I want to show custom message with big text size and red color text ...

2. I using macos, when using shortcut [cmd+backspace], Editor delete file without popup message, How can show popup in this case?

Thank you very much.

 

You can show a popup after there is change, but I don't think you can before. You might (haven't tried), be able to bind a key command to that key command that calls a script instead of the default behaviour, then your script could throw a dialog and perform the action. Maybe, don't know if it is possible.

 

Maybe this can help? (Disclaimer: I have never done such a thing, so I'm guessing)
https://docs.unity3d.com/ScriptReference/AssetModificationProcessor.OnWillDeleteAsset.html

Combined with this one: https://docs.unity3d.com/ScriptReference/EditorUtility.DisplayDialog.html

 

Thank you very much for your help!
That's exactly what i want!!!