Identify scroll coming from locking

[AntoineDuComptoirDesPharmacies]

Is your feature request related to a problem? Please describe.
We are using window event listener on scroll to open/collapse the website header according to user scroll up/down on the page.
When tua-body-scroll-lock trigger, a scroll event is sent with pos_x = 0 and pos_y = 0, making the header thinking that user scroll up.
It would be nice to avoid this header effect on scroll lock.

Describe the solution you'd like
The header is not opened/collapsed when an element get scroll lock.
Two potential implementations :

1. tua-body-scroll export the getLockState method to access the lockedNum value. On our side we can check this value on scroll and ignore event if lockedNum > 0.
2. tua-body-scroll export a isLocked method that will do the same as '1' but with a simple true/false return.
3. tua-body-scroll add a special meta/key in the scroll event so we can ignore them on reception.

The (3) may be the best but do not know if it is technically feasible.

Describe alternatives you've considered
At first we were thinking to check the value of style overflow on document or body but it to not work on iOS as the style is not passed to hidden / grid.
So at the moment, we are using useGlobalLockState and checking the value of window.__BSL_LOCK_STATE__?.lockedNum,

Yours faithfully,
LCDP

[BuptStEve]

Thanks for your issue, how about providing a reproduction repo or online demo? @AntoineDuComptoirDesPharmacies

[BuptStEve]

Maybe export getLockState? So you can check the lockedNum?