Re: [Libguestfs] another GTK3 regression...

On Fri, Sep 30, 2022 at 10:04:27AM +0100, Daniel P. Berrangé wrote: For future reference, inside the virt-p2v ISO environment I logged in as root/p2v and edited /usr/bin/launch-virt-p2v, changing: - exec /usr/bin/virt-p2v --iso --colours + exec bash -c 'GTK_DEBUG=interactive /usr/bin/virt-p2v --iso --colours' I then ran launch-virt-p2v from the text console. This starts X11 and does launches virt-p2v & the separate inspector window. If you look at the attached screenshot, the inspector window (lower) has the GtkSpinner widget in blue. The widget name is greyed out which makes it hard to read. I guess that corresponds to the spinner being hidden. If you click Test Connection then the widget name becomes visible, probably corresponding to the idle task being run and calling start_spinner which shows the widget. (The spinner itself still does not show up or "spin"). When Test connection finishes, the widget name again goes back to being greyed out, probably corresponding to stop_spinner being called. A few other notes: The GtkLabel below the blue bar in the screenshot is the spinner message. This is being displayed and updated properly. If you click to the right of the "Style Classes" column in the inspector, then the widget or box is flashed in blue briefly. When GtkSpinner is inactive nothing happens. BUT (and it is difficult to do the mouse gymnastics here) if you click "Test Connection" and while that is running click to the right of the GtkSpinner, it does highlight a small blue box (displaying nothing) to the left of the spinner message. So it seems that the spinner widget is occupying the expected place on the screen, even if it's not displaying anything. Clicking the second button along the top row of the inspector shows details of the spinner. There's a lot of stuff here. For example under "CSS nodes" I can see the -gtk-icon-transform CSS changing to "rotate(XXX)" (with "XXX" rapidly increasing) as the spinner is supposed to be animating, but again no animation is shown. Under "Visual" there are various buttons. If you enable "Show Graphic Updates" then the GtkSpinner widget space flashes in red (again the spinner itself does not display), so it seems to indicate that Gtk "knows" that the spinner should be updating even if for some reason it doesn't get rendered. Rich. -- Richard Jones, Virtualization Group, Red Hat http://people.redhat.com/~rjones Read my programming and virtualization blog: http://rwmj.wordpress.com Fedora Windows cross-compiler. Compile Windows programs, test, and build Windows installers. Over 100 libraries supported. http://fedoraproject.org/wiki/MinGW