org.openqa.selenium.interactions
Interfaces 
Action
HasInputDevices
HasTouchScreen
Keyboard
Mouse
TouchScreen
Classes 
Actions
ButtonReleaseAction
ClickAction
ClickAndHoldAction
CompositeAction
ContextClickAction
DoubleClickAction
KeyDownAction
KeyUpAction
MoveMouseAction
MoveToOffsetAction
SendKeysAction
Exceptions 
InvalidCoordinatesException
MoveTargetOutOfBoundsException