Struts/UIX/JavaScript Child Windows

Question

I have seen an example of using JavaScript to execute a Struts action mapping that is implemented using UIX. I would like to know if this will work in UIX.
HC_doOpenRemote('<html:rewrite forward="item"/>');
This function would be a simple JavaScript function that would cause a child window to be opened and cause the forward to the Struts action item to be executed resulting in the page being displayed.
Is this possible in UIX? If so, please outline the steps to do it.
By the way I got this example out of the book Struts In Action by Ted Husted.

Answer 1

Thanks Adam for the example. The "event" part of the code helped me to do what I needed. (By the way, if there is a more direct way to do this let me know.)
The issue for me is that the server does not know when a child window page is opened and this causes the blackhole as far as Struts is concerned. Working with Struts events is important because it provides easy integration with BC4J through the BC4JRequestProcessor.
So your example suggested that I should implement an UIX page that strictly handles events that are recieved from a page that is opening the child window.
Each event is named differently and makes a call to a Struts event. (The UIX event handler is the only place that UIX can deal with Struts events.)
Here is some example code:
The main.uix page has the following links:
<link text="Open UIX page (events only), transfer control through Struts event. #1">
<!-- Let's send a request to open a window with an initial event -->
<boundAttribute name="onClick">
<concat>
<fixed text="openWindow(self, '"/>
<ctrl:pageURL name="/pages/transferwindow" event="GoToRealPage1"/>
<fixed text="');return false"/>
</concat>
</boundAttribute>
</link>
<link text="Open UIX page (events only), transfer control through Struts event. #2">
<!-- Let's send a request to open a window with an initial event -->
<boundAttribute name="onClick">
<concat>
<fixed text="openWindow(self, '"/>
<ctrl:pageURL name="/pages/transferwindow" event="GoToRealPage2"/>
<fixed text="');return false"/>
</concat>
</boundAttribute>
</link>
The transfer.uix page only handles UIX events passed in from JavaScript:
<?xml version="1.0" encoding="windows-1252"?>
<page xmlns="http://xmlns.oracle.com/uix/controller"
xmlns:ctrl="http://xmlns.oracle.com/uix/controller"
xmlns:html="http://www.w3.org/TR/REC-html40"
xmlns:struts="http://xmlns.oracle.com/uix/struts">
<content>
<!--
This is a UIX page that is used only to transfer control to a Struts
event. This is important to Struts/UIX applications that use child
windows since the Struts controller is on the server side and child
windows are launched on the client side.
-->
</content>
<handlers>
<!-- Add EventHandlers (<event> elements) here -->
<event name="GoToRealPage1">
<struts:action path="/realchild1.do"/>
</event>
<event name="GoToRealPage2">
<struts:action path="/realchild2.do"/>
</event>
</handlers>
</page>
And then the struts-config.xml:
<action path="/realchild1"
type="org.apache.struts.actions.ForwardAction"
parameter="/pages/realwindow1.uix">
</action>
<action path="/realchild2"
type="org.apache.struts.actions.ForwardAction"
parameter="/pages/realwindow2.uix">
</action>