Hi
In one of my plugins, I'm using QWebEngineView as a way to show a HTML/CSS graph, using flexbox. It works just fine on calibre 6, but I had a hard time trying to make it work on older versions. If I remember correctly, calibre 4 and 5 have QWebEngineView, but you need to run it on a diferent process, and this leaded to crashes here (certainly something wrong I did).
First, I would like to know if there is another alternative to QWebEngineView that could work on calibre 4+, in a general way. It is important to have full HTML/CSS support, otherwise flexbox won't work.
Second, there is something bothering me with my current working code: the QDialog used to close when I pressed Esc; now, after adding the QWebEngineView widget, Esc doesn't work anymore... I have to click on the X.
I tried overriding closeEvent or keyPressEvent but nothing worked.
Any tips would be great!
