vcard-integration for gnome

[Darko Obradovic <dobradovic gmx de>]

Hi all,

First: I'm not sure if I'm addressing the correct list, but this  
message certainly aims towards desktop development and I found no  
better alternative.
Using gnome2 since its beginning, I very much like the direction it's  
heading towards, and noticed one bigger issue: PIM. gnome-pim obviously  
didn't get the port to gnome2, and by now evolution took that over in a  
way, but mostly for calendar-stuff only imho.
So, here's my idea: some form contact management would be a solid base  
for the desktop in general. We'd need a central and standardized  
location to store contacts, an application or ways (more to this later  
on) to manage them, and mechanisms which provide the functionality to  
other gnome-applications.
I did quite some research, but I certainly missed a lot, and thus seek  
for input and an evaluation or opinions from more experienced people.  
Now, step by step:
1. USEFULNESS

Having a central way to handle contacts would be a good thing from a  
user's point of view, as he doesn't have to think separately for every  
application. Applications which could make use of this are mail-clients  
(balsa, maybe evo), instant-messengers (gossip), video-conferencing  
(gnomemeeting), connective apps (a cellphone-manager, gnome-pilot) and  
maybe even more, like seahorse.
2. ARCHITECTURE

That's the point where I'm quite lost for now. What makes most sense? A  
separate library, some bonobo-components, gnome-vfs, a combination of  
some of these? This is certainly a decisive point where design flaws  
will have a heavy impact, so some people smarter than me are needed. ;)
3. ADDRESSBOOK-MANAGEMENT

First and easiest thing to develop is a simple gui which lets you view,  
edit, delete and add contacts. Yet I'm not sure if this should go into  
a separate application based on a library (see ARCHITECTURE), or if it  
would be the basic software for all this.
4. FORMAT

I came to the conclusion that vCard might be the best choice. It's  
quite widespread, was used by gnome-pim, is used by evolution, is  
suitable for interchange (cellphones, pdas) and there already is  
"libversit" in gnome-cvs. It should be fairly straightforward to create  
a "~/.vcards"-folder (might be in some .gnome*-dir as well) and save  
individual files there.

My personal motivation on this:
I'm experimentally about to start writing a GTK2-frontend for gammu  
cellphone-manager, which could need such an infrastructure, and for  
ages I'm looking to get some solid addressbook-handling for balsa.
Ok, so I'd be very happy to get some constructive comments, especially  
regarding the feasibilty and sense of all this. I have some more  
concrete ideas, but I'm trying to keep this short for the beginning.
Thanks for reading,

Darko Obradovic

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