public class Enclosure extends WebMarkupContainer implements IComponentResolver
<table wicket:id="label-container" class="notify"><tr><td><span wicket:id="label">[[notification]]</span></td></tr></table>
WebMarkupContainer container=new WebMarkupContainer("label-container")
{
public boolean isVisible()
{
return hasNotification();
}
};
add(container);
container.add(new Label("label", notificationModel));
with Enclosure you are able to do the following:
<wicket:enclosure>
<table class="notify"><tr><td><span wicket:id="label">[[notification]]</span></td></tr></table>
</wicket:enclosure>
add(new Label("label", notificationModel))
{
public boolean isVisible()
{
return hasNotification();
}
}
Please note that since a transparent auto-component is created for the tag, the markup and the
component hierarchy will not be in sync which leads to subtle differences if your code relies on
onBeforeRender() and validate() being called for the children inside the enclosure tag. E.g. it
might happen that onBeforeRender() and validate() gets called on invisible components. In doubt,
please fall back to EnclosureContainer.
Additionally due to the reason above it is not possible to assert that children in Enclosure are not visible to WicketTester.
EnclosureHandler,
EnclosureContainer,
Serialized FormENABLE, FLAG_AFTER_RENDERING, FLAG_INITIALIZED, FLAG_PREPARED_FOR_RENDER, FLAG_REMOVING_FROM_HIERARCHY, FLAG_RENDERING, FLAG_RESERVED1, FLAG_RESERVED2, FLAG_RESERVED3, FLAG_RESERVED4, FLAG_RESERVED5, FLAG_RESERVED8, PARENT_PATH, PATH_SEPARATOR, RENDER, RFLAG_CONTAINER_DEQUEING| Constructor and Description |
|---|
Enclosure(String id,
String childId)
Construct.
|
| Modifier and Type | Method and Description |
|---|---|
protected Component |
getChild() |
String |
getChildId() |
protected MarkupContainer |
getEnclosureParent()
Get the real parent container
|
boolean |
isVisible()
Gets whether this component and any children are visible.
|
protected void |
onConfigure()
Called once per request on components before they are about to be rendered.
|
protected void |
onDetach()
Called to allow a component to detach resources after use.
|
Component |
resolve(MarkupContainer container,
MarkupStream markupStream,
ComponentTag tag)
Try to resolve a component.
|
getWebApplication, getWebPage, getWebRequest, getWebResponse, getWebSessionadd, addDequeuedComponent, addOrReplace, autoAdd, canDequeueTag, contains, dequeue, dequeue, dequeuePreamble, findChildComponent, findComponentToDequeue, get, get, getAssociatedMarkup, getAssociatedMarkupStream, getMarkup, getMarkupType, getRegionMarkup, internalAdd, internalInitialize, iterator, iterator, newDequeueContext, onAfterRenderChildren, onComponentTagBody, onInitialize, onRender, queue, remove, remove, removeAll, renderAll, renderAssociatedMarkup, renderNext, replace, setDefaultModel, size, swap, toString, toString, visitChildren, visitChildren, visitChildren, visitChildrenadd, addStateChange, afterRender, beforeRender, canCallListenerInterface, canCallListenerInterfaceAfterExpiry, checkComponentTag, checkComponentTagAttribute, checkHierarchyChange, clearOriginalDestination, configure, continueToOriginalDestination, createConverter, debug, detach, detachModel, detachModels, determineVisibility, error, exceptionMessage, fatal, findMarkupStream, findPage, findParent, findParentWithAssociatedMarkup, getAjaxRegionMarkupId, getApplication, getBehaviorById, getBehaviorId, getBehaviors, getBehaviors, getClassRelativePath, getConverter, getDefaultModel, getDefaultModelObject, getDefaultModelObjectAsString, getDefaultModelObjectAsString, getEscapeModelStrings, getFeedbackMessages, getFlag, getId, getInnermostModel, getInnermostModel, getLocale, getLocalizer, getMarkup, getMarkupAttributes, getMarkupId, getMarkupId, getMarkupIdFromMarkup, getMarkupIdImpl, getMarkupSourcingStrategy, getMetaData, getModelComparator, getOutputMarkupId, getOutputMarkupPlaceholderTag, getPage, getPageRelativePath, getParent, getPath, getRenderBodyOnly, getRequest, getRequestCycle, getRequestFlag, getResponse, getSession, getSizeInBytes, getStatelessHint, getString, getString, getString, getStyle, getVariation, hasBeenRendered, hasErrorMessage, hasFeedbackMessage, info, initModel, internalOnModelChanged, internalPrepareForRender, internalRenderComponent, internalRenderHead, isActionAuthorized, isAuto, isBehaviorAccepted, isEnableAllowed, isEnabled, isEnabledInHierarchy, isIgnoreAttributeModifier, isRenderAllowed, isRendering, isStateless, isVersioned, isVisibilityAllowed, isVisibleInHierarchy, markRendering, modelChanged, modelChanging, newMarkupSourcingStrategy, onAfterRender, onBeforeRender, onComponentTag, onEvent, onModelChanged, onModelChanging, onReAdd, onRemove, prepareForRender, redirectToInterceptPage, remove, remove, render, renderComponentTag, rendered, renderHead, renderHead, renderPlaceholderTag, replaceComponentTagBody, replaceWith, sameInnermostModel, sameInnermostModel, send, setAuto, setDefaultModelObject, setEnabled, setEscapeModelStrings, setFlag, setIgnoreAttributeModifier, setMarkup, setMarkupId, setMarkupIdImpl, setMetaData, setOutputMarkupId, setOutputMarkupPlaceholderTag, setParent, setRenderBodyOnly, setRequestFlag, setResponsePage, setResponsePage, setResponsePage, setVersioned, setVisibilityAllowed, setVisible, success, urlFor, urlFor, urlFor, urlFor, urlFor, visitParents, visitParents, warn, wrappublic final String getChildId()
protected final Component getChild()
public boolean isVisible()
Component
WARNING: this method can be called multiple times during a request. If you override this
method, it is a good idea to keep it cheap in terms of processing. Alternatively, you can
call Component.setVisible(boolean).
protected void onConfigure()
Component
Overrides must call super.onConfigure(), usually before any other code
NOTE: Component hierarchy should not be modified inside this method, instead it should be
done in Component.onBeforeRender()
NOTE: Why this method is preferrable to directly overriding Component.isVisible() and
Component.isEnabled()? Because those methods are called multiple times even for processing of
a single request. If they contain expensive logic they can slow down the response time of the
entire page. Further, overriding those methods directly on form components may lead to
inconsistent or unexpected state depending on when those methods are called in the form
processing workflow. It is a better practice to push changes to state rather than pull.
NOTE: If component's visibility or another property depends on another component you may call
other.configure() followed by other.isVisible() as mentioned in
Component.configure() javadoc.
NOTE: Why should Component.onBeforeRender() not be used for this? Because if a component's
visibility is controlled inside Component.onBeforeRender(), once invisible the component will
never become visible again.
onConfigure in class Componentprotected void onDetach()
ComponentonDetach in class MarkupContainerprotected MarkupContainer getEnclosureParent()
public Component resolve(MarkupContainer container, MarkupStream markupStream, ComponentTag tag)
IComponentResolverresolve in interface IComponentResolvercontainer - The container parsing its markupmarkupStream - The current markupStreamtag - The current component tag while parsing the markupnull if not foundCopyright © 2006–2018 Apache Software Foundation. All rights reserved.