undecorated onboard doesn't comply with compiz effects

[kenn]

I am on Ubuntu 14.04.2 platform. When I untick "show window decorator" in onboard settings, onboard doesn't obey compiz window
animation effects while minimizing, maximizing, moving ect. Is it by design or a regression in recent releases?

[marmuta (marmuta)]

Yes, current Onboard hides and shows the keyboard window wherever possible, instead of minimizing/restoring it. IIRC it's been like this since we switched to GTK-3 in 2012 and more out of necessity than by design. Gnome-3/GTK-3 were trying to get rid of minimizing back then and the required APIs weren't there or have been unreliable. Also the default minimize/restore animations in compiz added delays and didn't seem like a good fit for Onboard's auto-show overall.

Currently there's one loophole left for real minimizing:
- Onboard has to think it runs under metacity, so run it from command line as
  onboard -q metacity
- uncheck Preferences->Window->Force to top
- uncheck Preferences->General->Show status icon
- uncheck Preferences->General->Show floating icon

That should get you minimizing in Compiz too, but YMMV. With auto-show enabled there's a chance the window disappears for good at some point, i.e. deiconify() does nothing.

Marking 'won't fix' for now as I don't believe we'll be able to change this behavior.

[kenn (whatnext)]

@marmuta thank you for the info. It appears to be gtk3 client side decoration handicap. I can live with it.
I met another decoration problem, when I enable "show window decoration" and set transparency to 80 while inactive, then when I move mouse pointer on window decoration which has minimize, maximize and exit buttons, it loses focus and sets transparency, I can not see onboard while moving it in the screen. It's like window geometry is not covering onboard's window decoration.

[marmuta (marmuta)]

OK, I've opened bug #1461823 for this new issue.