This implements https://bugzilla.gnome.org/show_bug.cgi?id=663527#c3.
Account reordering is now done by drag-and-drop instead of up/down
buttons.
Turned out to be a wee bit more complicated than I initially thought.
This scraps EAccountManager and EAccountTreeView and replaces them with
new classes centered around EMailAccountStore, which EMailSession owns.
EMailAccountStore is the model behind the account list in Preferences.
The folder tree model now uses it to sort its own top-level rows using
gtk_tree_path_compare(). It also broadcasts account operations through
signals so we don't have to rely so heavily on EAccountList signals,
since EAccountList is going away soon.
Also as part of this work, the e-mail-local.h and e-mail-store.h APIs
have been merged into EMailSession and MailFolderCache.
My apologies for flip-flopping the API again.
e-mail-store.c functions used to take an EMailSession, then I changed
it to take an EMailBackend in preparation for my account-mgmt branch.
Having rethought some API decisions on the branch, however, the first
flip-flop proved to be unnecessary. And now Srini needs the API to use
EMailSession for his mail-factory branch, so I'm flip-flopping again.
We have a confusing array of nearly-identical CFLAGS/LIBS definitions in
configure.ac. Time to simplify. Instead let's just have one definition
that includes all the libraries provided by Evolution-Data-Server (incl.
Camel). That, in combination with GNOME_PLATFORM, gives us most of what
we need for compliation and linking, and we can sprinkle definitions for
additional library dependencies in Makefile.am's as needed.
The settings library started using an EMailBackend object, but since
it is abstract it can't be instantiated directly. So we use the EShell
to get the mail backend for us instead, after loading the modules.
All this so EMFolderTree can submit EActivity instances for async ops.
You can obtain an EMailSession from an EMailBackend, but not vice versa.
Creates lots of pretty ripples in the mail code, but ultimately reduces
complexity. So it's a code cleanup of sorts.
This thing is kind of a weird hybrid of Anjal and Evolution code anyway.
We should figure out if and where it really belongs in Evolution and get
the Anjal references cleaned up.
This marks the end of unintrusive error dialogs, which were too
unintrusive. We now show errors directly in the main window using
the EAlert / EAlertSink framework.
Global variables in shared libraries are a bad idea. EMailBackend now
owns the MailSession instance, which is actually now EMailSession.
Move the blocking utility functions in mail-tools.c to e-mail-session.c
and add asynchronous variants. Same approach as Camel.
Replace EMailReader.get_shell_backend() with EMailReader.get_backend(),
which returns an EMailBackend. Easier access to the EMailSession.
In GTK+ 2.21.8, the keysym names were renamed from GDK_* to GDK_KEY_*.
I've added backward-compatibility macors to gtk-compat.h, which can be
dumped as soon as we require GTK+ >= 2.22.0.
