[Wayland-bugs] [Bug 766405] New: Stack shows incorrect frame in widget factory on wayland

[gtk+ (GNOME Bugzilla)]

https://bugzilla.gnome.org/show_bug.cgi?id=766405

            Bug ID: 766405
           Summary: Stack shows incorrect frame in widget factory on
                    wayland
    Classification: Platform
           Product: gtk+
           Version: unspecified
                OS: Linux
            Status: NEW
          Severity: normal
          Priority: Normal
         Component: Backend: Wayland
          Assignee: gtk-bugs at gtk.org
          Reporter: mattdangerw at gmail.com
        QA Contact: gtk-bugs at gtk.org
                CC: rob at robster.org.uk, wayland-bugs at lists.freedesktop.org
     GNOME version: ---

>From Timm Bäder on irc, on wayland sometimes stack shows a double drawn frame
in the widget factory.

http://i.imgur.com/JzcvonC.png

I believe the problem is because for some reason after triggering a stack page
transition, the stack is being drawn before its first tick callback. A gdk
window is positioned wrong until that callback.

Probably good for stack to always have consistent state, and have a patch for
that which fixes this problem. But no idea if that ordering of draw->tick
callback is expected, so opening the bug in case someone who knows more on the
wayland side wants to dig in there.

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