Module org.apache.wicket.core

Package org.apache.wicket.markup.html.link

Class ExternalLink

java.lang.Object

org.apache.wicket.Component

org.apache.wicket.MarkupContainer

org.apache.wicket.markup.html.WebMarkupContainer

org.apache.wicket.markup.html.link.AbstractLink

org.apache.wicket.markup.html.link.ExternalLink

All Implemented Interfaces:

Serializable, Iterable<Component>, IEventSink, IEventSource, IFeedbackContributor, IConverterLocator, IMetadataContext<Serializable,Component>, IHeaderContributor, IRequestableComponent, IHierarchical<Component>, IClusterable

public class ExternalLink
extends AbstractLink

A simple anchor link (<a href="http://url">) pointing to any URL. Usually this is used for links to destinations outside of Wicket.

Note: in the case when the support for cookies in the browser is disabled the user's jsessionid will leak in the 'Referrer' header after clicking this link. If this is a problem for the application then better use a Link which redirects to a shared resource (see WebApplication.mountResource(String, org.apache.wicket.request.resource.ResourceReference) , e.g. "/myapp/redirecting-resource?url=...") which on its side redirects to the new URL using RedirectToUrlException. Another option is to use rel="noreferrer" attribute in your markup but this will work only in the modern browsers (supporting HTML5 standard).

Author:

Juergen Donnerstag

See Also:

• Serialized Form

Field Summary

Fields inherited from class org.apache.wicket.Component

ENABLE, FLAG_INITIALIZED, FLAG_RESERVED1, FLAG_RESERVED2, FLAG_RESERVED3, FLAG_RESERVED4, FLAG_RESERVED5, FLAG_RESERVED8, PARENT_PATH, PATH_SEPARATOR, RENDER, RFLAG_CONTAINER_DEQUEING, RFLAG_CONTAINER_HAS_REMOVALS

Constructor Summary

Constructors

Constructor	Description
ExternalLink(String id, String href)	Constructor.
ExternalLink(String id, String href, String label)	Constructor.
ExternalLink(String id, IModel<String> href)	Constructor.
ExternalLink(String id, IModel<String> href, IModel<?> label)	Constructor.

Method Summary

Modifier and Type	Method	Description
final PopupSettings	getPopupSettings()	Gets the popup specification.
boolean	isContextRelative()
protected void	onComponentTag(ComponentTag tag)	Processes the component tag.
void	renderHead(IHeaderResponse response)	Render to the web response whatever the component wants to contribute to the head section.
ExternalLink	setContextRelative(boolean contextRelative)	Set to true if this link should be automatically prepended with ../ to make it relative to the context root.
final ExternalLink	setPopupSettings(PopupSettings popupSettings)	Sets the popup specification.

Methods inherited from class org.apache.wicket.markup.html.link.AbstractLink

disableLink, getBody, onComponentTagBody, onDetach, setBody

Methods inherited from class org.apache.wicket.markup.html.WebMarkupContainer

getWebApplication, getWebPage, getWebRequest, getWebResponse, getWebSession

Methods inherited from class org.apache.wicket.MarkupContainer

add, addDequeuedComponent, addOrReplace, autoAdd, canDequeueTag, contains, dequeue, dequeue, dequeuePreamble, findChildComponent, findComponentToDequeue, get, getAssociatedMarkup, getAssociatedMarkupStream, getMarkup, getMarkupType, getRegionMarkup, internalAdd, internalInitialize, iterator, iterator, newDequeueContext, onInitialize, onRender, queue, remove, remove, removeAll, renderAll, renderAssociatedMarkup, renderNext, replace, setDefaultModel, size, stream, streamChildren, toString, toString, visitChildren, visitChildren

Methods inherited from class org.apache.wicket.Component

add, addStateChange, beforeRender, canCallListener, canCallListenerAfterExpiry, 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, getMarkupTag, 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, internalRenderComponent, internalRenderHead, isActionAuthorized, isAuto, isBehaviorAccepted, isEnableAllowed, isEnabled, isEnabledInHierarchy, isIgnoreAttributeModifier, isInitialized, isRenderAllowed, isRendering, isStateless, isVersioned, isVisibilityAllowed, isVisible, isVisibleInHierarchy, markRendering, modelChanged, modelChanging, newMarkupSourcingStrategy, onAfterRender, onBeforeRender, onConfigure, onEvent, onModelChanged, onModelChanging, onReAdd, onRemove, redirectToInterceptPage, remove, remove, render, renderComponentTag, rendered, renderPart, renderPlaceholderTag, replaceComponentTagBody, replaceWith, sameInnermostModel, sameInnermostModel, send, setAuto, setDefaultModelObject, setEnabled, setEscapeModelStrings, setFlag, setIgnoreAttributeModifier, setMarkup, setMarkupId, setMarkupIdImpl, setMetaData, setOutputMarkupId, setOutputMarkupPlaceholderTag, setParent, setRenderBodyOnly, setResponsePage, setResponsePage, setResponsePage, setVersioned, setVisibilityAllowed, setVisible, success, urlFor, urlFor, urlFor, urlForListener, urlForListener, visitParents, visitParents, warn, wrap

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Methods inherited from interface java.lang.Iterable

forEach, spliterator

Constructor Details

ExternalLink

public ExternalLink(String id,
 String href,
 String label)

Constructor.

Parameters:

id - See Component

href - the href attribute to set

label - the label (body)

ExternalLink

public ExternalLink(String id,
 String href)

Constructor.

Parameters:

id - The name of this component

href - the href attribute to set

ExternalLink

public ExternalLink(String id,
 IModel<String> href)

Constructor.

Parameters:

id - The name of this component

href - the href attribute to set

ExternalLink

public ExternalLink(String id,
 IModel<String> href,
 IModel<?> label)

Constructor.

Parameters:

id - See Component

href - the href attribute to set

label - the label (body)

Method Details

getPopupSettings

public final PopupSettings getPopupSettings()

Gets the popup specification. If not-null, a javascript on-click event handler will be generated that opens a new window using the popup properties.

Returns:

the popup specification.

setPopupSettings

public final ExternalLink setPopupSettings(PopupSettings popupSettings)

Sets the popup specification. If not-null, a javascript on-click event handler will be generated that opens a new window using the popup properties.

Parameters:

popupSettings - the popup specification.

Returns:

This

onComponentTag

protected void onComponentTag(ComponentTag tag)

Processes the component tag.

Overrides:

onComponentTag in class Component

Parameters:

tag - Tag to modify

See Also:

• Component.onComponentTag(org.apache.wicket.markup.ComponentTag)

renderHead

public void renderHead(IHeaderResponse response)

Description copied from class: Component

Render to the web response whatever the component wants to contribute to the head section.

Specified by:

renderHead in interface IHeaderContributor

Overrides:

renderHead in class Component

Parameters:

response - Response object

isContextRelative

public boolean isContextRelative()

Returns:

True if this link is automatically prepended with ../ to make it relative to the context root.

setContextRelative

public ExternalLink setContextRelative(boolean contextRelative)

Set to true if this link should be automatically prepended with ../ to make it relative to the context root.

Parameters:

contextRelative -

Returns:

This for chaining