Bug#728106: libreoffice-writer: The "Save" dialog doesn't appear when quitting with two windows open on different desktops

[Vincent Lefevre <vincent@vinc17.net>]

About the desktops in my test:
  file1.odt is on top-left
  file2.odt is on top-right

Then...

On 2013-10-28 15:30:57 +0100, Vincent Lefevre wrote:
> I don't know what frame_x means, but the negative value looks strange
> to me.

I may have an idea of what could occur.

I don't know exactly how fvwm implements desktops (more precisely
pages on the desktop), but I think it does that by translating the
coordinates of the windows. That's why, for instance, a window can
appear partly on two adjacent pages. So, when I move to the right
page, the X coordinates of the windows on the left page become
negative.

Now, with LibreOffice, I think that the following occurs:

1. LibreOffice gets the coordinates of the file1.odt window
   (currently negative, as on the left page, while the right
   page of the desktop is being displayed), with the goal to
   display the "Save" window above the file1.odt window.

2. LibreOffice switches to the left page (perhaps by raising or
   giving the focus to the file1.odt window). This makes fvwm
   translate the coordinates.

3. LibreOffice opens the "Save" window, using the coordinates
   obtained in (1). But the problem is that these coordinates
   are not up-to-date!

This could explain the bug, with a large negative frame_x of the
"Save" window.

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Vincent Lefèvre <vincent@vinc17.net> - Web: <http://www.vinc17.net/>
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