[Seaside] Bread crumbs

[Julian Fitzell]

Honesly, bread crumbs is a pattern I've been pondering for a while but 
haven't come up with a good solution for yet (and I'll need one fairly 
soon so some discussion around this would be great).

There are a number of difficulties with implementing breadcrumbs:

- What are we going back to?  Are you rolling back state or is it more 
like going back in a wizard where if you went forward the later stuff 
would still be filled in?
- How are we going back?  Are we storing a previous continuation and 
going back to it or are we going to some new URL that shows the "same" 
content (clearing delegates, etc)?
- What pages views actually generate a crumb?  Does every page you see 
have one or just certain task sections?  If you're showing a bread crumb 
for a page that is asking a question, when the user answers it do you 
remove the bread crumb or add a new one?  If we're removing them, how 
does the user go back?  If we're adding them, when do we clear the trail?

These are just some of the questions swirling in my mind.  Bread crumbs 
work really well for say yahoo or that kind of hierarchical information 
system (and maybe that's all you're talking about doing) but, while I 
think they'd be pretty useful for other applications, I can't quite 
formulate how they'd work or how we should implement them.

Anyway, I'd be interested in seeing what others think.  In the words or 
Saturday Night Live, talk amongst yourselves, I'll give you a topic: 
Bread Crumbs; discuss. :)

(Wow - can't believe I'm gonna leave that reference in... I'm alone at 
work today and bored so I guess I need whatever little entertainment I 
can find.  Actually bread crumbs are fairly high on my todo list in the 
near future so this discussion is a good think to think about today)

Julian

Pennell, David wrote:
> How would you generalize this for bread crumb trails?
> 
> -david