[Bug 26205] High-level API for ContactLists

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=26205

Simon McVittie <simon.mcvittie at collabora.co.uk> changed:

           What    |Removed                     |Added
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                 CC|                            |sjoerd at luon.net

--- Comment #2 from Simon McVittie <simon.mcvittie at collabora.co.uk> 2011-02-15 03:43:12 PST ---
(In reply to comment #1)
> TP_CONNECTION_FEATURE_CONTACT_LIST (which depends on
> TP_CONNECTION_FEATURE_CONNECTED and TP_IFACE_CHANNEL_TYPE_CONTACT_LIST).

Some of the ContactList information is useful before CONNECTED, like whether we
have one at all, and the boolean flags.

One alternative would be:

* FEATURE_CONTACT_LIST does not depend on FEATURE_CONNECTED
* FEATURE_CONTACT_LIST also includes (a mapping of) ContactListState
* FEATURE_CONTACT_LIST also includes contact-list-error: GError or NULL,
  to report why the contact list (last) failed, or NotAvailable if it's just
not
  there yet
* the contact list appears to be empty until we get to the SUCCESS state,
  with change notification
* FEATURE_CONNECTED doesn't require SUCCESS (rationale: it can take a while
  to get the contact list, particularly on XMPP where it's a separate async
  request, and MSN where the separate contact list server might even be down)

Another would be:

* as above, plus
* FEATURE_CONTACT_LIST_FULL (better name needed) requires that SUCCESS or
  FAILURE state has been reached

Someone objected to features that require CONNECTED; Sjoerd, perhaps?

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