bug#48069: 28.0.50; [feature/pgtk]; tooltips are jittery and sometimes obscured

[Yuuki Harano]

On Tue, 04 May 2021 14:54:20 +0300,
        Eli Zaretskii <eliz@gnu.org> wrote:
> Does that mean tooltips will not work well in the pgtk build?

Yes..

> Can we somehow work around this
> peculiarity, so that tooltips for menus and tool-bar buttons work as
> they do in the other builds?

At least, I need information what widget the tooltip is on.
Currently, I can get only frame.

Or,
I may be able to set tooltip text to menu item in advance and
entrust gtk with handling tooltips.

I'll try the second way.
-- 
Yuuki Harano