private void evaluateContext(Element target, ModelElement contextModel, Node contextNode)
throws ParseException {
// TODO support for 'bind attribute'
if (target instanceof ModelElement) {
contextModel = (ModelElement) target;
contextNode = contextModel.getInitialContextNode();
} else if (target.getAttribute("model") != null) {
// 7.4-3-a: context model which 'model' atttibeute determines is used
String id = target.getAttribute("model");
contextModel = (ModelElement) getElementById(id);
// reset the context node to the top-level element node
contextNode = contextModel.getInitialContextNode();
}
if (contextModel == null) {
// 7.4-3-c: The first model in document order is used
contextModel = getInitialContextModel();
// 7.4-1: 'outermost element' uses the top-level element node
contextNode = contextModel.getInitialContextNode();
}
if (target instanceof XFormsElement) ((XFormsElement) target).setContextNode(contextNode);
System.out.println(
"evaluete : context node["
+ target.getTagName()
+ "] = "
+ ((InstanceDocument) contextNode.getOwnerDocument()).getOwner().getAttribute("id"));
for (Node n = target.getFirstChild(); n != null; n = n.getNextSibling()) {
if (!(n instanceof Element)) continue;
// 7.4.3-b: The context model of immediately enclosing element is used
// 7.4-2: 'non-outermost element' uses
// first node of the binding expression of the immediately enclosing element
if (target instanceof XFormsElement) {
Node bindingNode = ((XFormsElement) target).getBindingNode();
if (bindingNode != null) {
evaluateContext((Element) n, contextModel, bindingNode);
continue;
}
}
evaluateContext((Element) n, contextModel, contextNode);
}
}
public void destruct() throws Exception {
for (Enumeration e = xpathSelectElements("//model"); e.hasMoreElements(); ) {
Element model = (Element) e.nextElement();
model.dispatchEvent(new Event("xforms-destruct", true, false));
}
}