astian authored Jul 12, 2017 and Carlos Garcia Campos committed Jul 22, 2017

This patch makes use of standard GObject macros to declare class
EvDocumentModel.  GObject macros take care of defining a few useful
functions/variables, so the corresponding (so far hand-coded) macros
were removed.  Since the class is not derived from, it is marked "final"
(this restriction can always be lifted at a later date, if needed).  For
that reason GObject will also take care of defining the class structure,
therefore the hand-coded definition was also removed.

That last point also means that an unused class-scoped function pointer
meant to serve as a signal handler (a so-called "class closure") for
signal "page-changed" was removed.  Notice that the signal itself still
exists.

https://bugzilla.gnome.org/show_bug.cgi?id=784914