the component acting as "horizontal" when there is a horizontal scroll even if direction="vertical" is set

[m4m205]

Hello mfuu,

this issue happen when I have a vertical list with one row (or rows not enough to have vertical scroll),
and that row always has a lot of data to show. then when there is horizontal scroll AND no vertical scroll, then the issue happen.

the "bottom" event will be triggered when scrolling to the right (which shouldn't happen). and the list will not update the view correctly when adding a second line.
both lines will be disappear.

thank you in advice for all your efforts.

I know that you are providing this amazing component for free.
but just to put you in the picture, I am using this component in production and now I have a lot of complains from the customers.
if that can be fix quickly then it will be great.

I looked to your code and it look like you always consider 'direction' cases.
nevertheless the issue exist.

if I can help in anyway then please let me know.

[m4m205]

Hello mfuu,

I found the issue.

let's say we have a case with component set to direction="vertical"

in Virtual.js file the function handleScroll will be called even when the scroll horizontally, but with the same "offset" value

then we will have a case with offset === this.offset

I added a fix to my previous pull request (for adding extra Props).
it woke okay for my.

I still not understand what "LEADING_BUFFER" is used for.

and also it causing some rows to disappear when a user add a new row to long list of rows!
(but that to be fixed in another day maybe)

please let me know if you agree with my fix.