[WICKET-2991] Ajax Fallback LInk should pass a NullAjaxRequestTarget when javascript not supported

• Type: Improvement
• Status: Resolved
• Priority: Major
• Resolution: Won't Fix
• Assignee: Igor Vaynberg
• Reporter: Don Ferguson
• Created: 15/Aug/10 16:58
• Updated: 26/Feb/16 13:05
• Resolved: 16/Jun/11 16:46

Description

When javascript is not supported, AjaxFallbackLink calls onClick(target) with target = null. I propose that instead it should pass a NullAjaxRequestTarget whose addComponent() method is a noop (since the whole page is going to be re-rendered anyway).

This will make it possible to call write the onClick() method without a null check, as in:

@Override
public void onClick(AjaxRequestTarget target)

{ target.addComponent(...); }

rather than always worrying about whether javascript is enabled by the browser, and wrapping a null check around the target,

Issue Links

• relates to: WICKET-6104 Rework AjaxFallback** components to use java.util.Optional for their #onEvent methods