How to set condition operators on checkbox derived component?

[plibleblo]

I have created a custom component that is based on a checkbox element based on the template for CheckboxElement.

It renders in the form and builder as expected. But I noticed that when making a condition I get different operators (is empty/not empty) than a standard checkbox (is true/is false) in the builder. Naturally this leads to the condition not working.

This is the (simplified) code that I made. As far as I can see I am extending the standard CheckboxElement everywhere, so I am not sure where the condition operators are defined and why they are different?

Screenshot of condition dialog with different operator options:

[adamberecz]

I would first check out this:
https://builder.vueform.com/docs/custom-elements#defining-condition-operators

Then, if it doesn't work, I would try setting builder.type (next to where you set builder.resize = false) to checkbox. It should make the builder interpret it the same as checkbox when it will come to conditions (might have other side effects).