adapter: Implement PowerState property This property should allow any program to show whether an adapter is in the process of being turned on. As turning on an adapter isn't instantaneous, it's important that the UI reflects the transitional state of the adapter's power, and doesn't assume the device is already turned on but not yet working, or still off despite having requested for it to be turned on, in both cases making the UI feel unresponsive. This can also not be implemented in front-ends directly as, then, the status of an adapter wouldn't be reflected correctly in the Settings window if it's turned on in the system menu. Implementing it in the front-ends would also preclude from having feedback about the state of the adapter when bluetoothd is the one powering up the adapter after the rfkill was unblocked. See https://gitlab.gnome.org/GNOME/gnome-bluetooth/-/issues/121 and the original https://gitlab.gnome.org/GNOME/gnome-shell/-/issues/5773

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1 files changed, 128 insertions(+), 11 deletions(-)