The libedataserverui dependency is a relic of the old E-D-S API.
As of 3.6.0, E-D-S now centralizes authentication prompts so clients
don't have to display their own. This also allows trading the GTK+
main loop for a plain GMainLoop in gnome-shell-calendar-server.c.
https://bugzilla.gnome.org/show_bug.cgi?id=687189
If evolution-data-server needs to prompt for a password, it will try
to pop up a GTK+ dialog. When GTK+ is not initialized, the result is
a crash. So, initialize GTK+ and run a main loop.
See https://bugzilla.redhat.com/show_bug.cgi?id=809681
The result is ugly since we have a Gnome-shell-calendar-server fallback
application, but I don't think it's worth installing a desktop file
and having a string break, since this is pretty uncommon (only for
manually added calendars without the password stored in gnome-keyring),
and apparently this is being rewritten for 3.5 to have the dialogs come
the e-d-s daemon rather than from the individual application.
https://bugzilla.gnome.org/show_bug.cgi?id=673608
ECal is deprecated and replaced by ECalClient. This has the
advantage of using e_utils to handle authentication, and should
fix NotOpened errors (that affect in particular webcal calendars
prior to evolution running)
https://bugzilla.gnome.org/show_bug.cgi?id=671177
Unfortunately the evolution-data-server client-side libraries seem to
block the calling thread. This is a major problem as we must never
ever block the main thread (doing so causes animations to flicker
etc.). In the worst case, this problem causes login to hang (without
falling back to fall-back mode) and in the best case it slows down
login until a network connection is acquired.
Additionally, in order to sanely use these evolution-data-server
libraries, GConf has to be involved and GConf is not thread-safe. So
it's not really feasible just moving the code to a separate
thread. Therefore, move all calendar IO out of process and use a
simple (and private) D-Bus interface for the shell to communicate with
the out-of-process helper.
For simplification, remove existing in-process code since internal
interfaces have been slightly revised. This means that the shell is no
longer using any native code for drawing the calendar dropdown.
https://bugzilla.gnome.org/show_bug.cgi?id=641396
Signed-off-by: David Zeuthen <davidz@redhat.com>
