Renders a content provider in a portlet
collective.portlet.contentprovider allows you to put content providers like viewletmanagers into portlets. This tool is meant for use by experienced theme developers since real-life use is going to require the ability to rewire viewlets and viewlet managers in ZCML and Generic Setup profiles.
Installation is typical for a Plone add on. Add collective.portlet.contentprovider to your eggs list in your buildout. If using an early version of plone, also add it to the zcml slugs.
Use is probably best demonstrate with a real use case: adding a Products.Carousel slideshow to a portlet. Normally, Carousel adds its banner viewlet, Products.Carousel.viewlet, to the IContentViews viewletmanager. Let’s say we wish, instead, to display it in a collective.portlet.contentprovider portlet.
Viewlets aren’t meant for use as direct content providers (they need a manager), so we need to tell a contentprovider portlet to show a viewletmanager that displays Products.Carousel.viewlet. So, we could just add a contentprovider portlet and tell it (in the provider field in the portlet editor) to display plone.contentviews. This works, but it also drags in everything else handled by plone.contentviews.
So, to do this right, we need to do the typical viewlet dance for moving viewlets from one manager to another. We’ll also make use of the fact that collective.portlet.contentprovider registers a viewlet manager that isn’t used anywhere else. So, in our theme product’s configure.zcml, all we need to do is set that manager to handle the carousel
<browser:viewlet name="Products.Carousel.pviewlet" for="*" manager="collective.portlet.contentprovider.interfaces.IContentProviderPortlet" class="Products.Carousel.browser.viewlet.CarouselViewlet" permission="zope2.View" layer=".interfaces.IThemeSpecific" />
And, in our viewlets.xml setup file, hide the Carousel viewlet in the old manager:
<hidden manager="plone.contentviews" skinname="plonetheme.ucdvaw"> <viewlet name="Products.Carousel.viewlet"/> </hidden>
Finally, just add a contentprovider portlet and tell it to display collective.portlet.contentprovider_vmanager.
- Fix missing file in initial release
- Initial release
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