[Libreoffice-bugs] [Bug 116095] New: GTK3 scrollbars are unusable – only area of 1-2px of scrollbar can be grabbed with pointer

[bugzilla-daemon at bugs.documentfoundation.org]

https://bugs.documentfoundation.org/show_bug.cgi?id=116095

            Bug ID: 116095
           Summary: GTK3 scrollbars are unusable – only area of 1-2px of
                    scrollbar can be grabbed with pointer
           Product: LibreOffice
           Version: 6.0.1.1 release
          Hardware: All
                OS: Linux (All)
            Status: UNCONFIRMED
          Severity: normal
          Priority: medium
         Component: UI
          Assignee: libreoffice-bugs at lists.freedesktop.org
          Reporter: zetok at openmailbox.org

Description:
LibreOffice with GTK3 support has broken scrollbars – out of the whole surface
of scrollbar that is supposed to be dragable with mouse pointer, only an area
on the very edge of scrollbar can be used to move the scrollbar. The said area
is very small, probably something like 1-2 pixels wide.

Initially I thought that scrollbars were completely unusable, but after
clicking on the scrollbar in frustration quite a few times, I've noticed that
it still can be grabbed if you aim very precisely for those few pixels that can
be grabbed...

Problem applies to both vertical and horizontal scrollbars.

Among all the GTK3 applications that I'm using, only LibreOffice exhibits this
problem.

GTK3 theme I'm using is fairly popular and mainstream: KDE Breeze. If I'm not
mistaken, it's shipped by default with KDE in many distros (and is one of the
very few default KDE themes that don't look bad).

I've also checked with some other GTK theme, and problem still occurs.


Steps to Reproduce:
1. Compile LO with support for GTK3
2. Try to grab scrollbar with mouse pointer

Actual Results:  
Can't grab scrollbar.

Expected Results:
Can grab scrollbar.


Reproducible: Always


User Profile Reset: No



Additional Info:
Version: 6.0.1.1
Build ID: Gentoo official package
CPU threads: 8; OS: Linux 4.15; UI render: default; VCL: gtk3; 
Locale: en-GB (en_GB.UTF-8); Calc: group


User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:58.0) Gecko/20100101
Firefox/58.0

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