neels has uploaded this change for review. ( https://gerrit.osmocom.org/c/pysim/+/40202?usp=email )

Change subject: personalization: add get_typical_input_len() to ConfigurableParameter ......................................................................

personalization: add get_typical_input_len() to ConfigurableParameter

The aim is to tell a user interface how wide an input text field should be chosen to be convenient -- ideally showing the entire value in all cases, but not too huge for fields that have no sane size limit.

Change-Id: I2568a032167a10517d4d75d8076a747be6e21890 --- M pySim/esim/saip/personalization.py 1 file changed, 18 insertions(+), 1 deletion(-)

git pull ssh://gerrit.osmocom.org:29418/pysim refs/changes/02/40202/1

diff --git a/pySim/esim/saip/personalization.py b/pySim/esim/saip/personalization.py index 1ce420a..e3ded68 100644 --- a/pySim/esim/saip/personalization.py +++ b/pySim/esim/saip/personalization.py @@ -259,6 +259,14 @@ return (min(vals), max(vals))

@classmethod + def get_typical_input_len(cls): + '''return a good length to use as the visible width of a user interface input field. + May be overridden by subclasses. + This default implementation returns the maximum allowed value length -- a good fit for most subclasses. + ''' + return cls.get_len_range()[1] or 16 + + @classmethod def get_all_implementations(cls, blacklist=None, allow_abstract=False): # return a set() so that multiple inheritance does not return dups return set(c @@ -267,7 +275,6 @@ and ((not blacklist) or (c not in blacklist))) )

- class DecimalParam(ConfigurableParameter): """Decimal digits. The input value may be a string of decimal digits like '012345', or an int. The output of validate_val() is a string with only decimal digits 0-9, in the required length with leading zeros if necessary. @@ -338,6 +345,16 @@ val = super().validate_val(val) return bytes(val)

+ @classmethod + def get_typical_input_len(cls): + # override to return twice the length, because of hex digits. + min_len, max_len = cls.get_len_range() + if max_len is None: + return None + # two hex characters per value octet. + # (maybe *3 to also allow for spaces?) + return max_len * 2 +

class EnumParam(ConfigurableParameter): value_map = {