Module org.apache.wicket.core

Package org.apache.wicket.markup.head

Class JavaScriptHeaderItem

java.lang.Object

org.apache.wicket.markup.head.HeaderItem

org.apache.wicket.markup.head.AbstractCspHeaderItem

org.apache.wicket.markup.head.JavaScriptHeaderItem

All Implemented Interfaces:

Serializable, IClusterable

Direct Known Subclasses:

AbstractJavaScriptReferenceHeaderItem, JavaScriptContentHeaderItem

public abstract class JavaScriptHeaderItem
extends AbstractCspHeaderItem

Base class for all HeaderItems that represent javascripts. This class mainly contains factory methods.

Author:

papegaaij

See Also:

• Serialized Form

Constructor Summary

Constructors

Constructor	Description
JavaScriptHeaderItem()

Method Summary

Modifier and Type	Method	Description
boolean	equals(Object o)
static JavaScriptReferenceHeaderItem	forReference(ResourceReference reference)	Creates a JavaScriptReferenceHeaderItem for the given reference.
static JavaScriptReferenceHeaderItem	forReference(ResourceReference reference, String id)	Creates a JavaScriptReferenceHeaderItem for the given reference.
static JavaScriptReferenceHeaderItem	forReference(ResourceReference reference, PageParameters pageParameters, String id)	Creates a JavaScriptReferenceHeaderItem for the given reference.
static JavaScriptContentHeaderItem	forScript(CharSequence javascript, String id)	Creates a JavaScriptContentHeaderItem for the given content.
static JavaScriptUrlReferenceHeaderItem	forUrl(String url)	Creates a JavaScriptUrlReferenceHeaderItem for the given url.
static JavaScriptUrlReferenceHeaderItem	forUrl(String url, String id)	Creates a JavaScriptUrlReferenceHeaderItem for the given url.
String	getId()
int	hashCode()
JavaScriptHeaderItem	setId(String markupId)	Sets the markup id for this header item

Methods inherited from class org.apache.wicket.markup.head.AbstractCspHeaderItem

getNonce, setNonce

Methods inherited from class org.apache.wicket.markup.head.HeaderItem

getDependencies, getProvidedResources, getRenderTokens, render

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, toString, wait, wait, wait

Constructor Details

JavaScriptHeaderItem

public JavaScriptHeaderItem()

Method Details

getId

public String getId()

Returns:

unique id for the javascript element.

setId

public JavaScriptHeaderItem setId(String markupId)

Sets the markup id for this header item

Parameters:

markupId - the markup id

Returns:

this object, for method chaining

forReference

public static JavaScriptReferenceHeaderItem forReference(ResourceReference reference,
 PageParameters pageParameters,
 String id)

Creates a JavaScriptReferenceHeaderItem for the given reference.

Parameters:

reference - resource reference pointing to the javascript resource

pageParameters - the parameters for this Javascript resource reference

id - id that will be used to filter duplicate reference (it's still filtered by URL too)

Returns:

A newly created JavaScriptReferenceHeaderItem for the given reference.

forReference

public static JavaScriptReferenceHeaderItem forReference(ResourceReference reference,
 String id)

Creates a JavaScriptReferenceHeaderItem for the given reference.

Parameters:

reference - resource reference pointing to the JavaScript resource

id - id that will be used to filter duplicate reference (it's still filtered by URL too)

Returns:

A newly created JavaScriptReferenceHeaderItem for the given reference.

forReference

public static JavaScriptReferenceHeaderItem forReference(ResourceReference reference)

Creates a JavaScriptReferenceHeaderItem for the given reference.

Parameters:

reference - resource reference pointing to the JavaScript resource

Returns:

A newly created JavaScriptReferenceHeaderItem for the given reference.

forScript

public static JavaScriptContentHeaderItem forScript(CharSequence javascript,
 String id)

Creates a JavaScriptContentHeaderItem for the given content.

Parameters:

javascript - javascript content to be rendered.

id - unique id for the javascript element. This can be null, however in that case the ajax header contribution can't detect duplicate script fragments.

Returns:

A newly created JavaScriptContentHeaderItem for the given content.

forUrl

public static JavaScriptUrlReferenceHeaderItem forUrl(String url)

Creates a JavaScriptUrlReferenceHeaderItem for the given url.

Parameters:

url - context-relative url of the the javascript resource

Returns:

A newly created JavaScriptUrlReferenceHeaderItem for the given url.

forUrl

public static JavaScriptUrlReferenceHeaderItem forUrl(String url,
 String id)

Creates a JavaScriptUrlReferenceHeaderItem for the given url.

Parameters:

url - context-relative url of the the javascript resource

id - id that will be used to filter duplicate reference (it's still filtered by URL too)

Returns:

A newly created JavaScriptUrlReferenceHeaderItem for the given url.

equals

public boolean equals(Object o)

Overrides:

equals in class Object

hashCode

public int hashCode()

Overrides:

hashCode in class Object