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https://issues.apache.org/jira/browse/TOBAGO-2397?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17945271#comment-17945271
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Henning Nöth commented on TOBAGO-2397:
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The commit which resolve this issue has the wrong issue IDs set in the commit
message. The correct IDs should be TOBAGO-2396 and TOBAGO-2397 (instead of
TOBAGO-2389, TOBAGO-2390). See:
https://github.com/apache/myfaces-tobago/commit/75405fa091fc593911366da124fe8917d6917d0e
> Button-Dropdown menu position while scrolling
> ---------------------------------------------
>
> Key: TOBAGO-2397
> URL: https://issues.apache.org/jira/browse/TOBAGO-2397
> Project: MyFaces Tobago
> Issue Type: Bug
> Components: JavaScript
> Affects Versions: 5.15.1, 6.7.1
> Reporter: Henning Nöth
> Assignee: Henning Nöth
> Priority: Major
> Fix For: 5.15.2, 6.7.2
>
>
> The dropdown menu position is set with PopperJs which works well if the
> related component is not in a scrollable container (like a tc:sheet).
> If the component is in a scrollable container, the position is updated very
> slowly.
> A better behavior would be, if the dropdown menu is closed if the user
> scrolls. This is the default behavior for Chrome/Chromium in Windows and
> Gnome. Another solution would be, if the user cannot scroll at all as long as
> the dropdown menu stays open.
> Unfortunately, the second solution is not easy to implement. So Tobago should
> close dropdown menus if the user scrolls.
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