Transient parent for QtWidgets popup menus

[Elvis Angelaccio]

On domenica 28 maggio 2017 10:37:40 CEST, Marco Martin wrote:
> On Sunday 28 May 2017 10:12:53 Elvis Angelaccio wrote:
>>    createWinId();
>> 
>> windowHandle()->setTransientParent(parent()->nativeParentWidget()->windowHan
>> dle());
>> 
>> Does it makes sense? Would it work?
>
> As far i know, if a qmenu is passed a parent in the ctor, then at the right 
> moment a transientparent is set as well, that's why most of menus are ok.
>
> for a general solution,  tried to do this in Qt:
> https://codereview.qt-project.org/#/c/195704/

Tried your patch and it seems to work fine! I'll leave a comment on gerrit.

>