[Zope3-dev] Menu issues

[Roger Ineichen]

Hi stefan

Behalf Of Stephan Richter
> Sent: Tuesday, March 01, 2005 9:47 PM
> To: zope3-dev at zope.org
> Subject: [Zope3-dev] Menu issues
> 
> Hello everyone,
> 
> as you have seem probably, I have been working on a menu demo 
> today. Update 
> your Zope 3, then go to http://localhost:8080/%40%40menudemo.html

First, thanks for your great work.

> While I was doing that it occurred to me that our 
> implementation of menus has 
> some problems. For example, it might be desirable at times to 
> have a sub-menu 
> that lists all recently opened files. Currently there is no 
> way ti implement 
> that, since we do not have the concept of a menu, but only a 
> menu item, which 
> are fairly static. 

I'm still working out a way where we can build menus with submenus.
I think there is no other way then using javascripts;-(
Yes the gecko engine can do it without JS, but ie ... 

I think your implementation is going in the right direction
if you using nested lists. This is today the best concept
for supporting future accessiblity requierments.

> Thus, I propose to implement a menu adapter that mainly does the work 
> "getMenu" is currently doing. By default the implementation 
> of a menu will be 
> very simple. But one can optionally specify a menu class that 
> does very 
> different things to generate menu items. This would allow us 
> to implement the 
> "Open Recently" use case.

I think, using adapters will be staight forward for this.

Perhaps we can a also support a menu view where is using a 
layout template. If so we could call this view and get a 
rendered menu component. This whould be cleaner then do it
all the time in a master template and would make it reusable.
(like the navigation tree in Rotterdam)

> Another advantage is that we can then store some sort of 
> state on the menu; 

On the menu item in the registry? This info is session or 
principal related? right? I mean if a menu is collapsed
or expanded is up to what a user klicked.
Or you mean somthing like the default state of a menu item for a
application?

> for example whether non-available items should be not displayed or be 
> disabled. Another possible feature would be the grouping of 
> menu-items and 
> inserting meta-items, such as a separator.

Uh, I forgot the separators in the unordered list concept... 

Has anybody some ideas, for supporting separator in UL menues?
Or knows a good sample. 

> Please let me know what you think.

Regards
Roger Ineichen

> Regards,
> Stephan
> -- 
> Stephan Richter
> CBU Physics & Chemistry (B.S.) / Tufts Physics (Ph.D. student)
> Web2k - Web Software Design, Development and Training
> _______________________________________________
> Zope3-dev mailing list
> Zope3-dev at zope.org
> Unsub: 
> http://mail.zope.org/mailman/options/zope3-dev/dev%40projekt01.ch
> 
>