As Palettes can either include a Gtk.Menu or a Gtk.Window we
have to use a "false" menu when we want to have both
functionality in a Palette. This is a new class PaletteMenuItem
for those use cases.
Code highly based on the work from Gonzalo Odiard. The API is
based on the one from GtkImageMenuItem [1].
[1] http://developer.gnome.org/gtk3/3.4/GtkImageMenuItem.html
Signed-off-by: Simon Schampijer <simon@laptop.org>
Acked-by: Manuel Quiñones <manuq@laptop.org>
Simon Schampijer
2d0ac2a952