public static String getFormClientId(UIComponent component, FacesContext context) {
UIComponent parent = component.getParent();
while (parent != null) {
if (parent instanceof UIForm) {
break;
}
parent = parent.getParent();
}
UIForm form = (UIForm) parent;
if (form != null) {
return form.getClientId(context);
}
return null;
}
public static UIComponent findParentForm(FacesContext context, UIComponent component) {
UIComponent parent = component;
while (parent != null)
if (parent instanceof UIForm) break;
else parent = parent.getParent();
return parent;
}
/**
* Override the {@link UIComponent#getContainerClientId} to allow users to disable this form from
* prepending its <code>clientId</code> to its descendent's <code>clientIds</code> depending on
* the value of this form's {@link #isPrependId} property.
*/
public String getContainerClientId(FacesContext context) {
if (this.isPrependId()) {
return super.getContainerClientId(context);
} else {
UIComponent parent = this.getParent();
while (parent != null) {
if (parent instanceof NamingContainer) {
return parent.getContainerClientId(context);
}
parent = parent.getParent();
}
}
return null;
}
/**
* Method handles UIComponent tree creation in accordance with the JSF 1.2 spec.
*
* <ol>
* <li>First determines this UIComponent's id by calling {@link
* javax.faces.view.facelets.ComponentHandler#getTagId()}.
* <li>Search the parent for an existing UIComponent of the id we just grabbed
* <li>If found, {@link
* com.sun.faces.facelets.tag.jsf.ComponentSupport#markForDeletion(javax.faces.component.UIComponent)
* mark} its children for deletion.
* <li>If <i>not</i> found, call {@link #createComponent(FaceletContext) createComponent}.
* <ol>
* <li>Only here do we apply {@link
* com.sun.faces.facelets.tag.MetaTagHandlerImpl#setAttributes(FaceletContext,
* Object)}
* <li>Set the UIComponent's id
* <li>Set the RendererType of this instance
* </ol>
* <li>Now apply the nextHandler, passing the UIComponent we've created/found.
* <li>Now add the UIComponent to the passed parent
* <li>Lastly, if the UIComponent already existed (found), then {@link
* ComponentSupport#finalizeForDeletion(UIComponent) finalize} for deletion.
* </ol>
*
* @throws TagException if the UIComponent parent is null
*/
@Override
public void apply(FaceletContext ctx, UIComponent parent) throws IOException {
FacesContext context = ctx.getFacesContext();
// make sure our parent is not null
if (parent == null) {
throw new TagException(owner.getTag(), "Parent UIComponent was null");
}
// our id
String id = ctx.generateUniqueId(owner.getTagId());
// grab our component
UIComponent c = findChild(ctx, parent, id);
if (null == c
&& context.isPostback()
&& UIComponent.isCompositeComponent(parent)
&& parent.getAttributes().get(id) != null) {
c = findReparentedComponent(ctx, parent, id);
} else {
/**
* If we found a child that is dynamic, the actual parent might have changed, so we need to
* remove it from the actual parent. The reapplyDynamicActions will then replay the actions
* and will make sure it ends up in the correct order.
*/
if (c != null
&& c.getParent() != parent
&& c.getAttributes().containsKey(DYNAMIC_COMPONENT)) {
c.getParent().getChildren().remove(c);
}
}
boolean componentFound = false;
if (c != null) {
componentFound = true;
doExistingComponentActions(ctx, id, c);
} else {
c = this.createComponent(ctx);
doNewComponentActions(ctx, id, c);
assignUniqueId(ctx, parent, id, c);
// hook method
owner.onComponentCreated(ctx, c, parent);
}
CompositeComponentStackManager ccStackManager =
CompositeComponentStackManager.getManager(context);
boolean compcompPushed = pushComponentToEL(ctx, c, ccStackManager);
if (ProjectStage.Development == context.getApplication().getProjectStage()) {
ComponentSupport.setTagForComponent(context, c, this.owner.getTag());
}
// If this this a naming container, stop generating unique Ids
// for the repeated tags
boolean setUniqueIds = false;
boolean oldUnique = false;
if (c instanceof NamingContainer) {
oldUnique = ComponentSupport.setNeedUniqueIds(ctx, false);
setUniqueIds = true;
}
try {
// first allow c to get populated
owner.applyNextHandler(ctx, c);
} finally {
if (setUniqueIds) ComponentSupport.setNeedUniqueIds(ctx, oldUnique);
}
// finish cleaning up orphaned children
if (componentFound) {
doOrphanedChildCleanup(ctx, parent, c);
}
this.privateOnComponentPopulated(ctx, c);
owner.onComponentPopulated(ctx, c, parent);
// add to the tree afterwards
// this allows children to determine if it's
// been part of the tree or not yet
addComponentToView(ctx, parent, c, componentFound);
adjustIndexOfDynamicChildren(context, c);
popComponentFromEL(ctx, c, ccStackManager, compcompPushed);
}
public static String findClientIds(FacesContext context, UIComponent component, String list) {
if (list == null) return "@none";
// System.out.println("ComponentUtils.findClientIds() component.clientId: " +
// component.getClientId(context) + " list: " + list);
String[] ids = list.split("[,\\s]+");
StringBuilder buffer = new StringBuilder();
for (int i = 0; i < ids.length; i++) {
if (i != 0) buffer.append(" ");
String id = ids[i].trim();
// System.out.println("ComponentUtils.findClientIds() ["+i+"] id: " + id);
if (id.equals("@all") || id.equals("@none")) {
// System.out.println("ComponentUtils.findClientIds() ["+i+"] " + id);
buffer.append(id);
} else if (id.equals("@this")) {
// System.out.println("ComponentUtils.findClientIds() ["+i+"] @this : " +
// component.getClientId(context));
buffer.append(component.getClientId(context));
} else if (id.equals("@parent")) {
// System.out.println("ComponentUtils.findClientIds() ["+i+"] @parent: " +
// component.getParent().getClientId(context));
buffer.append(component.getParent().getClientId(context));
} else if (id.equals("@form")) {
UIComponent form = ComponentUtils.findParentForm(context, component);
if (form == null)
throw new FacesException(
"Component " + component.getClientId(context) + " needs to be enclosed in a form");
buffer.append(form.getClientId(context));
} else {
UIComponent comp = component.findComponent(id);
// For portlets, if the standard search doesn't work, it may be necessary to do an absolute
// search
// which requires including the portlet's namespace. So the resulting encoded id looks
// something
// like portletNamespace:container:componentId. We make the search absolute by pre-pending
// a leading colon (:).
if (comp == null) {
String encodedId = encodeNameSpace(context, id);
if (!encodedId.startsWith(":")) {
encodedId = ":" + encodedId;
}
comp = component.findComponent(encodedId);
// System.out.println("ComponentUtils.findClientIds() ["+i+"] comp
// : " + (comp == null ? "null" : comp.getClientId(context)) + " id: " + encodedId);
}
if (comp != null) {
buffer.append(comp.getClientId(context));
} else {
if (context.getApplication().getProjectStage().equals(ProjectStage.Development)) {
logger.log(Level.INFO, "Cannot find component with identifier \"{0}\" in view.", id);
}
buffer.append(id);
}
}
}
return buffer.toString();
}
