[Zope3-Users] Different menu items for different views for the same context

[Robert Marianski]

On Wed, Aug 06, 2008 at 11:52:18PM +0530, Baiju M wrote:
> Hi all,
> 
> I am trying to create a navigation menu where menu items should
> change based on views.  To do this first I created a
> viewletManager like this::
> 
>   <browser:viewletManager
>      name="page_navigation_menu"
>      provides=".viewlet.IPageNavigationMenu"
>      class=".viewlet.PageNavigationMenu"
>      layer="myapp.skinning.layer.IMyappBrowserLayer"
>      permission="myapp.View"
>     />
> 
> And I defined viewletManager like this::
> 
>   from zope.viewlet.manager import WeightOrderedViewletManager
>   from zope.interface import implements
>   from zope.viewlet.interfaces import IViewletManager
> 
>   class IPageNavigationMenu(IViewletManager):
>       """Page Navigation Menu Viewlet Manager."""
> 
> 
>   class PageNavigationMenu(WeightOrderedViewletManager):
> 
>       implements(IPageNavigationMenu)
> 
> 
> Also I have this in my page layout::
> 
>   <div id="pagenavigation"
>        tal:content="structure provider:page_navigation_menu">
>     Page Navigation Menu
>   </div>
> 
> 
> This is an example viewlet::
> 
>   <browser:viewlet
>      name="Add User"
>      viewURL="@@add_user"
>      for="myapp.main.interfaces.IMyapp"
>      manager="myapp.skinning.viewlet.IPageNavigationMenu"
>      class="z3c.menu.simple.menu.ContextMenuItem"
>      permission="myapp.View"
>      layer="myapp.skinning.layer.IMyappBrowserLayer"
>      weight="2"
>      />
> 
> I do not want this viewlet appear when I open some views
> registerd for `myapp.main.interfaces.IMyapp`.  How can I do that
> ? Can I use "layer" feature in some way to solve this ?
> or anything I missed here ?
> 
> Regards,
> Baiju M

You can register your viewlets for a particular view. This works well if
you only want your viewlet to appear on a small number of views.

-- 
Robert