Yeah we need to implement them in ephy-bookmark-action and ephy-topic-
action. It should not be too hard.

ephy-go-action, ephy-location-action and ephy-spinner-action too.

Created attachment 16174 [details] [review]
Initial stab at working this out

Guys, I've taken an initial stab at a patch for this. I appreciate
it's not yet tidy!  So far I've got the menu items to appear - but
nothing happens when I select them (And I get a *load* of errors on
the terminal output). If you can give me some pointers I'm happy to
work on this and get it into a useable state[1] - let me know what you
think ....

I dont think you need to do this, eggaction will do it for you I 
think.
It would seem you can just override create_menu_item and do something 
like this in it:

GtkWidget *menu_item;

menu_item = (* EGG_ACTION_GET_CLASS (action)->create_menu_item) 
(action);
set_label etc ...

You could also avoid to call the parent method and create the menu 
item yourself... it would work anyway but maybe this is cleaner.

marco i think to get this working we need to convert our custom action
into egg_tool_items so that we can over the create_menu_proxy function.

as a side note, i do think it would be kind of cool to implement a
custom menu entry for the address entry so that when its in the menu
you can still enter in addresses.

I think eggmenu create eggtoolitems ... not sure though, need to check.

Created attachment 17468 [details] [review]
Implement overflow menu item for bookmarks

Toolbar overflow menu items are now implemented for bookmarks,
bookmark topics, the zoom control and the go button. The spinner and
the location entry _never_ overflow (the spinner because it's
pack_end, and the location entry because it's expandable).