MASKs input Text_Field with bug

[VictorDeon]

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• I have searched the opened issues and there are no duplicates

Describe the requested feature

I've developed a CNPJ normalization within the on_change of the TextField, but it keeps selecting the value and when I type it again it goes out because it's selected, I've tried autofocus, focus and etc and nothing works, can anyone help me?

I don't know if there is another way to do this, or if this is a bug, but it would be interesting to have this functionality to create masks for inputs.

ft.TextField(
  label="CNPJ",
  hint_text="33.933.606/001-39",
  filled=True,
  on_change=normalize_cnpj
)
 
def normalize_cnpj(e: ft.ControlEvent): 
        field: ft.TextField = e.control
        cnpj: str = field.value
 
        digits = "".join(filter(str.isdigit, cnpj))
 
        if len(digits) <= 2:
            field.value = digits
        elif len(digits) <= 5:
            field.value = f"{digits[:2]}.{digits[2:5]}"
        elif len(digits) <= 8:
            field.value = f"{digits[:2]}.{digits[2:5]}.{digits[5:8]}"
        elif len(digits) <= 12:
            field.value = f"{digits[:2]}.{digits[2:5]}.{digits[5:8]}/{digits[8:12]}"
        elif len(digits) <= 14:
            field.value = f"{digits[:2]}.{digits[2:5]}.{digits[5:8]}/{digits[8:12]}-{digits[12:14]}"
        else:
            field.value = f"{digits[:2]}.{digits[2:5]}.{digits[5:8]}/{digits[8:12]}-{digits[12:14]}"
 
        field.update()

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[VictorDeon]

I know there's a duplicate here, but mine is more specific

[ndonkoHenri]

Please can you share a screen recording of the issue ?