[kronolith] Show events from other Apps in Kronolith

[Chuck Hagenbuch]

Quoting Robin Rainton <robin at rainton.com>:

> If you're subscribed to other lists you might have read I'm playing with
> a logistics type package. This is going OK-ish and moving onto
> integration with other apps.
>
> I'd like to get 'jobs' entered in the new app to appear in a user's
> Kronolith calendar, and see there might be several ways to do this:
>
> 1. Create some sort of remote calendar feed (with ical) and have
> Kronolith import this (from the same server? Dumb, eh?).
> 2. I see Nag tasks can appear, so could create this 'listTasks' method.
> Nice, but a bit limited.
> 3. Patch Kronolith somehow (yerch!)
> 4. Create a different 'Driver' type and drop into the Kronolith
> directory (although how to make Kronolith use this would be a mystery to
> me!).
> 5. Something else?
>
> Number 2 does look promising, but it's a bit nag-centric. Are there any
> plans to make this more generic. Ie. instead of the Kronolith option
> saying "Tasks\nDo you want to show tasks which are due on your
> calendar?" perhaps it should have a list of apps from where events can
> be shown (this would be a bit like Nag's "External Data" option I
> guess). It might also be better for Kronolith to be able to pass a date
> range and perhaps other filter (although I can't think what that might
> be) info to potential donor apps, thus limiting events returned. Would
> like to return Edit link info as well as view - that would be nice.

I think a really elegant way to do all of this would be for Kronolith  
to support showing Atom feeds. Atom feeds can have edit links, display  
links, as much custom information as you need, dates, etc. We could  
have other apps, like Nag, provide Atom feeds (potentially restricted  
by dates or other criteria, such as having a due date and not  
completed). Could provide the same information _to_ Nag for displaying  
whups tickets on the task list, Hermes could provide timesheet  
information to Kronolith, etc.

I really think either that or iCalendar is the way to go.

-chuck

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