Represents all the control characters (the first 32 codes + SPACE and DELETE).
A listener is notified when the model it is associated with changed.
A swipeable element receives notifications from a swipe manager.
A button helper manages the behavior of a button: it handles pointer events, and notifies listeners when the button is clicked.
Utilities to take a screenshot of displayable objects.
The swipe event handler responsibility is to detect pointer events (press, drag, release) and help moving over some element(s).
A toggle helper manages the behavior of a toggle: it handles pointer events, changes the state of the toggle and notifies listeners when the toggle is clicked.