[Kde-pim] Synchronizing local subscriptions with the IMAP serverside subscription state

[Christian Mollekopf]

On Monday 12 May 2014 20.24:09 Ingo Klöcker wrote:
> On Monday 12 May 2014 16:33:12 Christian Mollekopf wrote:
> > Hey,
> > 
> > I want the IMAP resource to synchronize the server-side subscriptions
> > with the local subscription state in akonadi.
> 
> I've read your mail and techbase, but I still don't understand what you
> mean by "synchronize the server-side subscriptions with the local
> subscription state". I do understand that you don't mean that server-
> side subscriptions and local subscriptions are kept identical (which is
> what I understand if somebody says 'synchronize').
> 

I actually mean that they are kept identical (in-sync) =)
At least if you enable sever-side subscriptions in the imap resource. If you 
don't we ignore server-side subscriptions and you can use local subscriptions 
only. But lest assume you have them enabled for the rest of the discussion.

> Please explain what you mean with a few examples. What happens if I add
> a folder to my server-side subscriptions? What happens if I add a folder
> to my local subscriptions? What happens if I create a new folder on the
> server resp. locally? What happens if I remove a folder from either
> subscriptions?
> 

I essentially want to remove the server-side/local subscription distinction. 
Either you are subscribed to a folder or you are not, and if the IMAP resource 
has server-side subscriptions enabled it mirrors that subscription state to 
the server as an indication that you're interested in this folder, no matter 
what device your connecting to the server (so server-side subscription is 
simply used to synchronize your subscription state).

So that's the basic change I want to make, it reduces the complexity and IMO 
achieves what I would have expected from the system anyways (I never 
understood what I should do with local subscriptions).

However, it also enables me to do one more thing. I can always synchronize the 
complete folder list (not the content), ignoring the subscription state, and 
then use the subscription state for what I want offline (in a disconnected-IMAP 
scenario). By default all non-subscribed collections will be hidden, since not 
subscribed to locally. It's then fairly easy to give the user the possibility 
to say "I'm not normally subscribed to that shared folder, but let me just 
take a look now since I have internet.". We can simply synchronize the folder 
quickly in online-imap style, without changing any subscriptions.
And that would IMO make Kontact quite a bit more awesome.

Cheers,
Christian

> 
> Regards,
> Ingo

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