Inline Actions refer to action buttons that are inline with the object
they affect, as opposed to being at a global or screen level. In The
Nearby and Foodspotting, for example, each item in the list has an
Inline Action button that can show two states (follow/following).
Many applications rely on stateful buttons for the Inline Actions, like
the star buttons that can be toggled on and off in RetailMeNot and
Gmail. See the next pattern, the Multi-State Button, for incorporating
more than two states