bug#38693: 27.0.50; tab-bar: automatic tab names should be shortened

[Juri Linkov]

tags 38693 fixed
close 38693 27.0.60
thanks

>>>>> Please provide an option to dynamically shorten at least
>>>>> automatic tab labels in order not to overflow the tab bar into
>>>>> another line OR provide an option with sensible default for the
>>>>> max length of automatic tab labels (e.g. 23 characters per tab
>>>>> label would allow for at least 3 tabs on a 80 char terminal) OR
>>>>> something to such effect.
>>>>
>>>> Maybe such a new option:
>>>>
>>>>   (defcustom tab-bar-tab-name-max 23
>>>>
>>>> and using it on the default values of tab-bar-tab-name-current,
>>>> tab-bar-tab-name-current-with-count, tab-bar-tab-name-all?
>>>
>>> yes, this would be helpful for me.
>>
>> I'm still not sure whether to use the new option in all functions above,
>> or add a new function that truncates the name.  It seems the latter is
>> better:
>>
>> +(defcustom tab-bar-tab-name-truncated-max 20
>> +  "Maximum length of the tab name from the current buffer.
>> +Effective when `tab-bar-tab-name-function' is customized
>> +to `tab-bar-tab-name-truncated'."
>> +  :type 'integer
>> +  :group 'tab-bar
>> +  :version "27.1")
>
> The same option should be added also to tab-line to truncate tab-line
> tab names.  Currently I fixed a bug that occurred when a tab name
> was longer than window width.  With such an option set to some reasonable
> default value this situation won't happen.

Fixed and closed, thanks.