Module org.apache.wicket.extensions

Package org.apache.wicket.extensions.ajax

Class AjaxDisableComponentListener

java.lang.Object

org.apache.wicket.ajax.attributes.AjaxCallListener

org.apache.wicket.extensions.ajax.AjaxDisableComponentListener

All Implemented Interfaces:

Serializable, IAjaxCallListener, IComponentAwareHeaderContributor, IClusterable

public class AjaxDisableComponentListener
extends AjaxCallListener

An AjaxCallListener to disable the associated component while the AJAX request is running. Please note that under the hood this class uses DOM attribute 'disabled' to disable a component, hence it can be used only with those HTML components that support this attribute. If you want to use it with other kinds of components you should override generateHandlerJavaScript(org.apache.wicket.Component, boolean) to generate the proper enable/disable JavaScript.

Author:

Andrea Del Bene

See Also:

• Serialized Form

Constructor Summary

Constructors

Constructor	Description
AjaxDisableComponentListener()

Method Summary

Modifier and Type	Method	Description
protected String	generateHandlerJavaScript(Component component, boolean disabled)	Generate the proper enable/disable JavaScript code for the given component.
CharSequence	getBeforeHandler(Component component)	The JavaScript that will be executed before the Ajax call, as early as possible.
CharSequence	getCompleteHandler(Component component)	The JavaScript that will be executed after both successful and unsuccessful return of the Ajax call.
CharSequence	getFailureHandler(Component component)	The JavaScript that will be executed after unsuccessful return of the Ajax call.

Methods inherited from class org.apache.wicket.ajax.attributes.AjaxCallListener

getAfterHandler, getBeforeSendHandler, getDoneHandler, getInitHandler, getPrecondition, getSuccessHandler, onAfter, onBefore, onBeforeSend, onComplete, onDone, onFailure, onInit, onPrecondition, onSuccess, renderHead

Methods inherited from class java.lang.Object

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

Constructor Details

AjaxDisableComponentListener

public AjaxDisableComponentListener()

Method Details

getBeforeHandler

public CharSequence getBeforeHandler(Component component)

Description copied from interface: IAjaxCallListener

The JavaScript that will be executed before the Ajax call, as early as possible. Even before the preconditions. The script will be executed in a function that receives the following parameters:

1. attrs - the AjaxRequestAttributes as JSON

Specified by:

getBeforeHandler in interface IAjaxCallListener

Overrides:

getBeforeHandler in class AjaxCallListener

Parameters:

component - the Component with the Ajax behavior

Returns:

the JavaScript that will be executed before the Ajax call.

getCompleteHandler

public CharSequence getCompleteHandler(Component component)

Description copied from interface: IAjaxCallListener

The JavaScript that will be executed after both successful and unsuccessful return of the Ajax call. The script will be executed in a function that receives the following parameters:

1. attrs - the AjaxRequestAttributes as JSON
2. jqXHR - the jQuery XMLHttpRequest object
3. textStatus - the status as text

Specified by:

getCompleteHandler in interface IAjaxCallListener

Overrides:

getCompleteHandler in class AjaxCallListener

Parameters:

component - the Component with the Ajax behavior

Returns:

the JavaScript that will be executed after both successful and unsuccessful return of the Ajax call.

getFailureHandler

public CharSequence getFailureHandler(Component component)

Description copied from interface: IAjaxCallListener

The JavaScript that will be executed after unsuccessful return of the Ajax call. The script will be executed in a function that receives the following parameters:

1. attrs - the AjaxRequestAttributes as JSON
2. jqXHR - the jQuery XMLHttpRequest object
3. errorMessage - in case of HTTP error the textual portion of the HTTP status
4. textStatus - type of failure: null, "timeout", "error", "abort" or "parsererror"

Specified by:

getFailureHandler in interface IAjaxCallListener

Overrides:

getFailureHandler in class AjaxCallListener

Parameters:

component - the Component with the Ajax behavior

Returns:

the JavaScript that will be executed after a unsuccessful return of the Ajax call.

generateHandlerJavaScript

protected String generateHandlerJavaScript(Component component,
 boolean disabled)

Generate the proper enable/disable JavaScript code for the given component. By default component is enabled/disabled using DOM attribute 'disabled'.