wicket.ajax.calldecorator
Class CancelEventIfNoAjaxDecorator

java.lang.Object
  wicket.ajax.calldecorator.AjaxPostprocessingCallDecorator
      wicket.ajax.calldecorator.CancelEventIfNoAjaxDecorator

All Implemented Interfaces:

java.io.Serializable, IAjaxCallDecorator

public final class CancelEventIfNoAjaxDecorator
extends AjaxPostprocessingCallDecorator

Decorator that can be used to cancel the regular action if ajax call was performed. This allows us to, for example, cancel the default anchor behavior (requesting href url) if an ajax call was made in the onclick event handler. Ajax call cannot be performed if javascript has been turned off or no compatible XmlHttpRequest object can be found. This decorator will make javascript return true if the ajax call was made, and false otherwise.

Since:

1.2

Author:

Igor Vaynberg (ivaynberg)

See Also:

AjaxFallbackLink, Serialized Form

Field Summary

Fields inherited from interface wicket.ajax.IAjaxCallDecorator

WICKET_CALL_RESULT_VAR

Constructor Summary

CancelEventIfNoAjaxDecorator()
Construct.

CancelEventIfNoAjaxDecorator(IAjaxCallDecorator delegate)
Constructors that allows chaining of another decorator

Method Summary

java.lang.CharSequence

postDecorateScript(java.lang.CharSequence script) Decorates ajax call script

Methods inherited from class wicket.ajax.calldecorator.AjaxPostprocessingCallDecorator

decorateOnFailureScript, decorateOnSuccessScript, decorateScript, postDecorateOnFailureScript, postDecorateOnSuccessScript

Methods inherited from class java.lang.Object

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

Constructor Detail

CancelEventIfNoAjaxDecorator

public CancelEventIfNoAjaxDecorator()

Construct.

CancelEventIfNoAjaxDecorator

public CancelEventIfNoAjaxDecorator(IAjaxCallDecorator delegate)

Constructors that allows chaining of another decorator

Parameters:

delegate -

Method Detail

postDecorateScript

public final java.lang.CharSequence postDecorateScript(java.lang.CharSequence script)

Description copied from class: AjaxPostprocessingCallDecorator

Decorates ajax call script

Overrides:

postDecorateScript in class AjaxPostprocessingCallDecorator

Returns:

decorated script

See Also:

AjaxPostprocessingCallDecorator.postDecorateScript(CharSequence)