public static UIComponent addFacet(
FacesContext context,
ServletRequest req,
UIComponent parent,
String facetName,
ValueExpression binding,
Class childClass)
throws Exception {
if (context == null) context = FacesContext.getCurrentInstance();
if (parent == null) {
UIComponentClassicTagBase parentTag =
(UIComponentClassicTagBase) req.getAttribute("caucho.jsf.parent");
parent = parentTag.getComponentInstance();
}
UIComponent child = null;
if (binding != null) child = (UIComponent) binding.getValue(context.getELContext());
if (child == null) child = (UIComponent) childClass.newInstance();
if (parent != null) parent.getFacets().put(facetName, child);
if (binding != null) binding.setValue(context.getELContext(), child);
return child;
}
@SuppressWarnings({"UnusedDeclaration"})
protected UIComponent findReparentedComponent(
FaceletContext ctx, UIComponent parent, String tagId) {
UIComponent facet = parent.getFacets().get(UIComponent.COMPOSITE_FACET_NAME);
if (facet != null) {
UIComponent newParent = facet.findComponent((String) parent.getAttributes().get(tagId));
if (newParent != null) return ComponentSupport.findChildByTagId(newParent, tagId);
}
return null;
}