NextCheckKeyIsLong() is called right before each call to CheckKey() to
tell the implementation if the key is a long-press or not. (To be
used on devices with few buttons.) It's done as a separate method
(rather than a parameter to CheckKey) to not break existing recovery
UI implementations.
EnqueueKey() can be called from CheckKey() to put arbitrary code codes
in the synchronous queue (to be processed by HandleMenuKey).
Change-Id: If8a83d66efe0bbc9e2dc178e5ebe12acd216324b
Move the key for handling keys from ScreenRecoveryUI to RecoveryUI, so
it can be used by devices without screens. Remove the UIParameters
struct and replace it with some new member variables in
ScreenRecoveryUI.
Change-Id: I70094ecbc4acbf76ce44d5b5ec2036c36bdc3414
Move all the functions in ui.c to be members of a ScreenRecoveryUI
class, which is a subclass of an abstract RecoveryUI class. Recovery
then creates a global singleton instance of this class and then invoke
the methods to drive the UI. We use this to allow substitution of a
different RecoveryUI implementation for devices with radically
different form factors (eg, that don't have a screen).
Change-Id: I76bdd34eca506149f4cc07685df6a4890473f3d9
