Check if we are still holding the model before updating it; removes a set

Check if we are still holding the model before updating it; removes a set

2007-08-23  Emmanuele Bassi  <ebassi@gnome.org>

	* gtkfilechooserdefault.c:
	(search_hit_get_info_cb), (recent_item_get_info_cb): Check if
	we are still holding the model before updating it; removes a
	set of critical warnings when switching to the browse mode from
	a loading search or recent files list.

	(recent_clear_model), (recent_sort_model),
	(recent_idle_cleanup): When in recent files mode, set the
	model for the files list view when we have completed the loading
	of the recently used files list. This makes switching between
	modes fast again and reduces the amount of redraws needed
	to display the list. (#469214)

svn path=/trunk/; revision=18677