GNU bug report logs - #50993
29.0.50; Problems when dragging the mouse over the toolbar

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From: Po Lu <luangruo <at> yahoo.com>
To: martin rudalics <rudalics <at> gmx.at>
Cc: Eli Zaretskii <eliz <at> gnu.org>, 50993 <at> debbugs.gnu.org, Stefan Monnier <monnier <at> iro.umontreal.ca>
Subject: bug#50993: 29.0.50; Problems when dragging the mouse over the toolbar
Date: Mon, 11 Oct 2021 15:24:59 +0800

martin rudalics <rudalics <at> gmx.at> writes:

> I'm too silly to understand how this is related to the issue at hand.
> Can you please elaborate?

AFAIU, mouse-movement events generated by moving the mouse over the
toolbar don't contain a window, but rather the frame the toolbar belongs
to.

However, mouse-drag-track wants START-EVENT to contain a window.

> So far I've been unable to reproduce this issue on Emacs 28.  Doesn't
> 'mouse-drag-track', once started, conceptually have to get through
> wherever the mouse pointer is - a child frame, the tool bar, another
> frame, no frame at all?  Like scroll bar dragging with the mouse?

You need a build without toolkit tool bars, I think.

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