GtkPlacesView is a widget to display locations in the computer, such as root ("/") and volumes, separating the persistent devices from removable ones. From the latest mockups[1], GtkPlacesView would display the available space of local drives like partitions. This, however, is not implemented in the current codebase. Fix that by implementing the measurement of disk space, and adding a new property GtkPlacesView::show-disk-usage which controls the visibility of measured disks. [1] https://raw.githubusercontent.com/gnome-design-team/gnome-mockups/master/nautilus/nautilus-next/other-locations.png https://bugzilla.gnome.org/show_bug.cgi?id=759225
