I have a trouble with panel in relation to fullscreen

Configuration
1

I have a panel made with FvwmButtons, which has the style StaysOnTop and this ends up rendering it over even a fullscreened window. I have tried to fiddle with the layers, but as soon as the panel is on a layer where it always renders on top of an application it will also render on top of a fullscreened window. Is there any way to make a fullscreened window automatically render on top of the panel?

I have seen another thread where they binded the F11 key to a function, but I want this to automatically happen whenever something like youtube wants to go fullscreen. Is this possible, perhaps with FvwmEvent, or is it only possible through key bindings?

2

You should be able to use FvwmEvent for this. Put your panel on Layer 5 (usually layer 6 is the StaysOnTop layer and layer 4 is the default layer). Then when a window becomes full screen move it to Layer 6 via the StaysOnTop style, and back with StaysPut (layer 4). I don’t see an event for maximize/fullscreen, but I think the event, property_change might trigger (you may have to test things a bit). You can then have to run a function something like:

DestroyFunc ToggleMaximizeLayer
AddToFunc ToggleMaximizeLayer
+ I ThisWindow (Maximzed, AcceptsFocus, CurrentPage) WindowStyle StaysOnTop
+ I ThisWindow (!Maximized, AcceptsFocus, CurrentPage) WindowStyle StaysPut

I haven’t tested this, but the AcceptsFocus (or maybe CirculateHit) are to keep your panel or other windows from being affected by this if they have any property_change.

3

Thanks for this. I will have to read up on how to use FvwmEvent, but this makes me believe it is possible to do this

4

I have done a little bit of testing, and property_change seems to be activated at seemingly random times. What I can say for sure is that it doesn’t seem to be activated on entering fullscreen.
Do you have any idea of anything else that could work?

5

Yea, it appears that property_change doesn’t detect maximize, seems there is no event for this.

The event would have been nice because it can work no matter how a window becomes full screen, if this isn’t an option, you’ll have to write your own custom maximize function (note maximize can trigger the fullscreen flag).

DestroyFunc MyToggleFullscreen
AddToFunc MyToggleFullscreen
+ I ThisWindow (Maximized) MyFullscreenOff
+ I TestRc (NoMatch) MyFullscreenOn

DestroyFunc MyFullscreenOn
AddToFunc MyFullscreenOn
+ I Maximize fullscreen true
+ I WindowStyle StaysOnTop

DestroyFunc MyFullscreenOff
AddToFunc MyFullscreenOff
+ I Maximize fullscreen off
+ I WindowStyle StaysPut

Bind this to a key/menu and you can use it to toggle fullscreen on/off, and when that happens it will change the layer to raise it above/below your panel on layer 5.

6

I was really hoping I was able to automate this, so this feels like a loss to me. Thanks for the help though