Popup menus not removed when dragging across QuickFolders tabs

[RealRaven2000]

I had seen behavior of popup menus not closing intermittently, but popups left when dragging seems to be more consistent. I am not sure that 6.3 introduced the problem or deprecations of code in the Thunderbird back-end (they keep phasing out XUL features).

[RealRaven2000]

I made another observation - when dragging the email to a tab that has no subfolders (and hence no popup menu is triggered) some or sometimes all of the other menus are closed. I know there is code that iterates old popup menus forcing a closing, I think this is still in force but maybe only for this one case.

[ardent42c]

Have the same issue, but it doesn't seem to be right to left only issue. If I drag over from left to right on the buttons, it has the same problem.

[RealRaven2000]

After a bit more research I see that my dragExit() function was never triggered and that a lot of chrome browsers do not support this event but instead dragLeave, which is a more HTML compatible event, whereas dragExit is specific to XUL (the old Mozilla platform code). Although we still are using (some) XUL / xhtml code, there is an ongoing rewrite in the Tb UI to go towards standard HTML, so I decided to simply rename those functions, with some encouraging results. Here is a test version:

QuickFolders-mx-6.3.1pre4.zip

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To test the version above, download the zip file, drag the file into Thunderbird Add-ons Manager, do not extract contents or if won't install.

[RealRaven2000]

There seems to be a side effect with the "hover" background color being stuck when dragging away, so I need to fix that as well...

[RealRaven2000]

There seems to be a side effect with the "hover" background color being stuck when dragging away, so I need to fix that as well...

Ok fixed the side effect, I did some explite calls to dragExit that I also needed to renamed...

QuickFolders-mx-6.3.1pre5.zip

discussion on the dragExit vs dragLeave event can be read here.

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To test the version above, download the zip file, drag the file into Thunderbird Add-ons Manager, do not extract contents or if won't install.

[ardent42c]

I can confirm that the issue is indeed resolved with this version. Thanks!

[RealRaven2000]

Fixed in 6.4 released on 04/12/2023