Carousel do not recalculate its size after window size change

[compulim]

Repro

1. Connect to MockBot
2. Type "carousel", wait until carousel of cards come in
3. Resize Web Chat programmatically (no window.onresize event will fire)

Expected

Left/right flipper should be visible if not all the cards are shown.

Actual

Left/right flipper are hidden forever, and no way to scroll the carousel.

Notes

Also related to #997. If step 3 is hide/show Web Chat thru display: none or hidden attribute, measurement is postponed. But we did not reschedule the measurement.

Potential fixes

1. Redo measurement from time to time
   • Currently, the measurement is flashy because it remove all activities, add a super-wide card for measurement, then show all activities
2. Not doing measurement
   • Can we not calculating the width of an activity? I suspect we have the calculation because the user may change their CSS. But we might be able to get around with it using other CSS layout strategies, like flex box

[Kartik1607]

Hi, I tried to replicate the issue using code from master branch, but was unable to do so. Here is the video

Is this specific to certain browser or am I doing something wrong?

[compulim]

Thanks @Kartik1607.

If I remember my repro correctly, I think I mean resizing it programmatically using JavaScript.

[compulim]

This is fixed in v4.