who generates the varNodeToggler?
On Mon, 7 Feb 2005 12:29:16 -0500, Sean Schofield
<[EMAIL PROTECTED]> wrote:
> Here is a revised proposal of how we could do this:
>
> <x:tree value="#{treeBacker.treeData}" var="node" varNodeToggler="t">
> <f:facet name="foo-folder">
> <h:panelGroup>
> <h:commandLink immediate="true" action="#{t.toggleExpanded}">
> <h:graphicImage value="folder-open.png"
> rendered="#{t.expanded}" border="0"/>
> <h:graphicImage
> value="folder-closed.png"rendered="#{!t.expanded}" border="0"/>
> </h:commandLink>
> <h:outputText value="#{node.description}" styleClass="nodeFolder"/>
> </h:panelGroup>
> </f:facet>
> <f:facet name="document">
> <h:panelGroup>
> <h:commandLink immediate="true" styleClass="document">
> <h:graphicImage value="/images/document.png" border="0"/>
> <h:outputText value="#{node.description}"/>
> <f:param name="userId" value="#{node.identifier}"/>
> </h:commandLink>
> </h:panelGroup>
> </f:facet>
> </x:tree>
>
> This is similar to earlier examples except the expand/collapse
> information has been completely removed from the model. (It is not in
> TreeNode interface or TreeModel classes.)
>
> It makes use of a "varNdeToggler" variable. I was using
> varNodeToggler in the WAR example I posted but I have taken it one
> step further. It is now completely responsible for providing (and
> updating) information regarding the expand/collapse state. So I have
> changed #{node.expanded} to #{t.expanded}.
>
> varNodeToggler is really just a variable that you can reference to
> find out if something is expanded or collapsed. Behind the scenes its
> up to HtmlTree (or subclass) to make a bean available in the request
> with name you specify.
>
> I think this solves every one of the scenarios we have discussed so
> far. Its also still very simple and allows for the use of existing
> "rendered" functionality which I still think is a logical way to do
> this type of thing (if we can manage it.)
>
> sean
>
--
-Heath Borders-Wing
[EMAIL PROTECTED]
