@startuml
skinparam BackgroundColor F0F0F0

participant "AutoLock Timer" as timer
participant "PhoneLock Handler" as lock
participant "Application Manger" as apm
participant "Event Manager" as evnt
actor "User" as user

user -> evnt : key press/release
activate evnt
evnt->evnt : process event
evnt->apm : PreventBlockingRequest
deactivate evnt
activate apm

apm->lock : isLocked
activate lock
lock-->apm : response
deactivate lock

alt [ Not locked ]
apm -> timer : (re)start
activate timer
end

@enduml