screen dimming in manjaro-XFCE 18 & possible "presentation mode" support?

[carlinux]

Apparently caffeine doesn't prevent xfce4-power-manager screen dimming (after x seconds) . in manjaro-XFCE. ( I'm not sure in other xfce distros. ) Extrangely enough, xfce4-power-manager knows that caffeine is preventing power management as you can see in the screenshot. (sorry it is in spanish, the message says "caffeine is preventing the use of PM" On the other hand xfce4-power-manager now has a (less smart than caffeine) mode to prevent PM, it is called "presentation mode". That mode prevents PM while it is active.

I wonder if it would be possible to integrate "Presentation mode" as the PM for caffeine in XFCE. it can be set in real time by summoning xfconf-query To trigger it on and off xfconf-query -c xfce4-power-manager -p /xfce4-power-manager/presentation-mode -T To explicitly activate or deactivate it
xfconf-query -c xfce4-power-manager -p /xfce4-power-manager/presentation-mode -s true xfconf-query -c xfce4-power-manager -p /xfce4-power-manager/presentation-mode -s false

This mode prevents screen dimming and every other PM aspect.

Thanks in advance

[carlinux]

~~First of all i'm not a coder so maybe i,m missing something important but just looking into the code I think this could do it.~~

I Tested this piece of code and it works as intended :+1: I never did a PR so, please, mind it if I'm doing something wrong.

class xfceInhibitor(BaseInhibitor):

    def __init__(self):
        BaseInhibitor.__init__(self)

    def inhibit(self):
        self.running = True

        os.system("xfconf-query -c xfce4-power-manager -p /xfce4-power-manager/presentation-mode -s true")

    def uninhibit(self):
        self.running = False

        # FIXME: Aren't we enabling it if it was never online?
        # Grep `xset q` for "DPMS is Enabled"
        os.system("xfconf-query -c xfce4-power-manager -p /xfce4-power-manager/presentation-mode -s false")

    @property
    def applicable(self):
        # TODO!
        return True

[WhyNotHugo]

This repository has moved to codeberg.

Follow-up for this issue is at https://codeberg.org/WhyNotHugo/caffeine-ng/issues/23