protected void addComponentToView(
FaceletContext ctx, UIComponent parent, UIComponent c, boolean componentFound) {
FacesContext context = ctx.getFacesContext();
boolean suppressEvents = ComponentSupport.suppressViewModificationEvents(context);
boolean compcomp = UIComponent.isCompositeComponent(c);
if (suppressEvents && componentFound && !compcomp) {
context.setProcessingEvents(false);
}
ComponentSupport.addComponent(ctx, parent, c);
if (suppressEvents && componentFound && !compcomp) {
context.setProcessingEvents(true);
}
}
protected void doOrphanedChildCleanup(FaceletContext ctx, UIComponent parent, UIComponent c) {
ComponentSupport.finalizeForDeletion(c);
if (getFacetName(parent) == null) {
FacesContext context = ctx.getFacesContext();
boolean suppressEvents = ComponentSupport.suppressViewModificationEvents(context);
if (suppressEvents) {
// if the component has already been found, it will be removed
// and added back to the view. We don't want to publish events
// for this case.
context.setProcessingEvents(false);
}
// suppress the remove event for this case since it will be re-added
parent.getChildren().remove(c);
if (suppressEvents) {
// re-enable event processing
context.setProcessingEvents(true);
}
}
}
/**
* PRECONDITION: the necessary factories have been installed in the ServletContext attr set.
*
* <p>
*
* <p>POSTCONDITION: The facesContext has been initialized with a tree.
*/
public void execute(FacesContext facesContext) throws FacesException {
if (LOGGER.isLoggable(Level.FINE)) {
LOGGER.fine("Entering RestoreViewPhase");
}
if (null == facesContext) {
throw new FacesException(
MessageUtils.getExceptionMessageString(MessageUtils.NULL_CONTEXT_ERROR_MESSAGE_ID));
}
// If an app had explicitely set the tree in the context, use that;
//
UIViewRoot viewRoot = facesContext.getViewRoot();
if (viewRoot != null) {
if (LOGGER.isLoggable(Level.FINE)) {
LOGGER.fine("Found a pre created view in FacesContext");
}
facesContext.getViewRoot().setLocale(facesContext.getExternalContext().getRequestLocale());
// do per-component actions
deliverPostRestoreStateEvent(facesContext);
if (!facesContext.isPostback()) {
facesContext.renderResponse();
}
return;
}
FacesException thrownException = null;
try {
// Reconstitute or create the request tree
Map requestMap = facesContext.getExternalContext().getRequestMap();
String viewId = (String) requestMap.get("javax.servlet.include.path_info");
if (viewId == null) {
viewId = facesContext.getExternalContext().getRequestPathInfo();
}
// It could be that this request was mapped using
// a prefix mapping in which case there would be no
// path_info. Query the servlet path.
if (viewId == null) {
viewId = (String) requestMap.get("javax.servlet.include.servlet_path");
}
if (viewId == null) {
viewId = facesContext.getExternalContext().getRequestServletPath();
}
if (viewId == null) {
throw new FacesException(
MessageUtils.getExceptionMessageString(
MessageUtils.NULL_REQUEST_VIEW_ERROR_MESSAGE_ID));
}
ViewHandler viewHandler = Util.getViewHandler(facesContext);
boolean isPostBack = (facesContext.isPostback() && !isErrorPage(facesContext));
if (isPostBack) {
facesContext.setProcessingEvents(false);
// try to restore the view
viewRoot = viewHandler.restoreView(facesContext, viewId);
if (viewRoot == null) {
if (is11CompatEnabled(facesContext)) {
// 1.1 -> create a new view and flag that the response should
// be immediately rendered
if (LOGGER.isLoggable(Level.FINE)) {
LOGGER.fine("Postback: recreating a view for " + viewId);
}
viewRoot = viewHandler.createView(facesContext, viewId);
facesContext.renderResponse();
} else {
Object[] params = {viewId};
throw new ViewExpiredException(
MessageUtils.getExceptionMessageString(
MessageUtils.RESTORE_VIEW_ERROR_MESSAGE_ID, params),
viewId);
}
}
facesContext.setViewRoot(viewRoot);
facesContext.setProcessingEvents(true);
if (LOGGER.isLoggable(Level.FINE)) {
LOGGER.fine("Postback: restored view for " + viewId);
}
} else {
if (LOGGER.isLoggable(Level.FINE)) {
LOGGER.fine("New request: creating a view for " + viewId);
}
ViewDeclarationLanguage vdl =
facesContext
.getApplication()
.getViewHandler()
.getViewDeclarationLanguage(facesContext, viewId);
facesContext.getAttributes().put(RIConstants.VIEWID_KEY_NAME, viewId);
if (vdl != null) {
// If we have one, get the ViewMetadata...
ViewMetadata metadata = vdl.getViewMetadata(facesContext, viewId);
if (metadata != null) { // perhaps it's not supported
// and use it to create the ViewRoot. This will have, at most
// the UIViewRoot and its metadata facet.
viewRoot = metadata.createMetadataView(facesContext);
// Only skip to render response if there are no view parameters
Collection<UIViewParameter> params = ViewMetadata.getViewParameters(viewRoot);
if (params.isEmpty()) {
facesContext.renderResponse();
}
}
} else {
facesContext.renderResponse();
}
if (null == viewRoot) {
viewRoot = (Util.getViewHandler(facesContext)).createView(facesContext, viewId);
}
facesContext.setViewRoot(viewRoot);
assert (null != viewRoot);
}
} catch (FacesException fe) {
thrownException = fe;
} finally {
if (null == thrownException) {
deliverPostRestoreStateEvent(facesContext);
} else {
throw thrownException;
}
}
if (LOGGER.isLoggable(Level.FINE)) {
LOGGER.fine("Exiting RestoreViewPhase");
}
}