[dev] Disable sidebar by default

[Michael M Slusarz]

Quoting Chuck Hagenbuch <chuck at horde.org>:

> Quoting Michael M Slusarz <slusarz at horde.org>:
>
>> The new sidebar code is good now that we got rid of frames.  But it  
>> is bad because it has to be regenerated every time a page is  
>> loaded.  This is quite a bit of extra load.  Enough so that I  
>> wonder if sidebar should be disabled by default.  Alternatively, we  
>> need to do some sort of caching of the tree so that it does not  
>> need to be rebuilt on every page click.  Maybe do absolute time  
>> caching (e.g. we only rebuild the tree every 'refresh_time' minutes  
>> - when the page is loaded, the next refresh will be the difference  
>> between the next refresh time and the current time).
>
> That would lose us the realtime message count updates, but maybe  
> certain aspects could be more dynamic than others.
>
> I agree with Jan that it shouldn't be disabled by default.

I'm thinking we need to rewrite Horde_Block for the sidebar; since  
portal blocks/widgets aren't anything close to the same as sidebar  
block/widgets.  This code needs to be H4'ified anyway, and should  
probably be moved to Horde_Core.

Then each individual sidebar block could indicate whether its results  
can be cached or not for each session.  Example: if folder polling is  
disabled in IMP, we could used cached results to display the sidebar  
widget (folder creation/deletion could trigger a manual deletion of  
the cached result so that the folder list is accurately displayed).

michael

-- 
___________________________________
Michael Slusarz [slusarz at horde.org]