/**
* Installs a <code>SystemEventListener</code> on the <code>UIViewRoot</code> to track components
* added to or removed from the view.
*/
public void startTrackViewModifications(FacesContext ctx, UIViewRoot root) {
if (modListener == null) {
modListener = new AddRemoveListener(ctx);
root.subscribeToViewEvent(PostAddToViewEvent.class, modListener);
root.subscribeToViewEvent(PreRemoveFromViewEvent.class, modListener);
}
setTrackViewModifications(true);
}
/** Constructor. */
public DynamicParentComponent() {
setRendererType("com.sun.faces.test.agnostic.statesaving.basic.DynamicParentComponentRenderer");
FacesContext context = FacesContext.getCurrentInstance();
UIViewRoot root = context.getViewRoot();
if (!context.isPostback()) {
root.subscribeToViewEvent(PreRenderViewEvent.class, this);
}
}
/**
* Register callback to be executed only on whole scope destroying (not single object).
*
* @see Scope for more details
*/
@Override
public void registerDestructionCallback(String name, Runnable callback) {
// logger.trace("registerDestructionCallback for bean " + name);
UIViewRoot viewRoot = FacesContext.getCurrentInstance().getViewRoot();
ViewScopeViewMapListener listener =
new ViewScopeViewMapListener(viewRoot, name, callback, this);
viewRoot.subscribeToViewEvent(PreDestroyViewMapEvent.class, listener);
HttpSession httpSession =
(HttpSession) FacesContext.getCurrentInstance().getExternalContext().getSession(true);
final Set<ViewScopeViewMapListener> sessionListeners;
if (sessionToListeners.containsKey(httpSession)) {
sessionListeners = sessionToListeners.get(httpSession);
} else {
synchronized (sessionToListeners) {
if (sessionToListeners.containsKey(httpSession)) {
sessionListeners = sessionToListeners.get(httpSession);
} else {
sessionListeners = new HashSet<>();
sessionToListeners.put(httpSession, sessionListeners);
}
}
}
synchronized (sessionListeners) {
sessionListeners.add(listener);
}
if (!FacesContext.getCurrentInstance()
.getExternalContext()
.getSessionMap()
.containsKey("sessionBindingListener")) {
FacesContext.getCurrentInstance()
.getExternalContext()
.getSessionMap()
.put("sessionBindingListener", this);
}
}
//
// Constructor: Subscribes to PreRenderView Event(s)
//
public TableComponent() {
setRendererType("component");
FacesContext context = FacesContext.getCurrentInstance();
UIViewRoot root = context.getViewRoot();
root.subscribeToViewEvent(PreRenderViewEvent.class, this);
}