[dev] IMP dynamic redirection

[Michael M Slusarz]

Quoting Stuart Bingë <s.binge at codefusion.co.za>:

> Hi Michael,
>
> On Tuesday 06 April 2004 00:56, Michael M Slusarz wrote:
>> 1) _imp_hook_mbox_icon() was changed to return an array of mailbox/icon
>> pairs instead of a single image URL to reduce to one function call (instead
>> of potentially a function call each time a folder was displayed)
>
> Just got a chance to look at the change you made - I can see why you would
> want to do this, from a performance perspective. Unfortunately this creates a
> problem for the way we handle things:
>
> What we do with the Kolab server is store a hidden message of a specific
> format in each IMAP folder, which tells us what type of folder it is
> (Calendar, Task List, Notepad, etc). With the way I had implemented the icon
> hook we were able to open the folder that was passed as the parameter, read
> the hidden message from the folder (if one exists), and return the relevant
> icon depending on the folder type. I thought this was the best way as it
> simplifies the hook function immensely, as we could then rely on IMP handling
> the mailbox tree however it saw fit.
>
> With the way you're doing it now, we're going to have to build the 
> IMAP folder
> listing ourselves within the hook function and go through each folder,
> reading in our hidden messages and populating the icon array accordingly.
> This is not necessarily a major problem for us to do - all it means is our
> hook is now slightly more complex. The only problem I could forsee with this
> is if our way of building the mailbox tree differs somehow from the way that
> IMP does things, which could lead to us having two different mailbox trees.
>
> I haven't looked very closely at IMP's internals - are there perhaps a couple
> of functions we could call to get the folder tree from IMP? If so then
> there's no problem with the changes you've made.
>
> What do you think of this problem?

How about a compromise.  The hook will continue to return the entire 
icon/folder
mapping list if no arguments are passed in, and will pass back just the icon
URL if a mailbox/folder name is passed in.

How does that sound?

michael

______________________________________________
Michael Slusarz [slusarz at bigworm.colorado.edu]
The University of Colorado at Boulder