Add size column to activity details view

[bernie]

It's hard for users to determine what activities could be deleted t recover some space.

A size column could be handy, but computing the size synchronously would freeze the UI for too much time. One possible solution would be spawning a command line such as

du -s Activities/*

and parsing its output asynchronously in the parent process. This is very easy to do with glib.spawn_with_pipe() and I/O completion callbacks. tch did something similar for the backup/restore function.

[bernie]

Patch series here:  http://people.sugarlabs.org/~aa/patches/journal-sort/v1/

[erikos]

This is the real link:  http://people.sugarlabs.org/~aa/patches/sugar/journal-sort/v1/

There are a few threads about this on the sugar-devel ml:  http://lists.sugarlabs.org/archive/sugar-devel/2010-May/023658.html

[tomeu]

Wrong ticket? Those patches seem to be about the journal.

[bernie]

Indeed, this ticket has no patches yet.

[erikos]

I removed the r keyword as there is nothing to review yet. Please add the flag then again when there are patches.