Invoking the Link#setEnabled( false ) on a input type=button / element
will not disable the component.
The onclick handler will not be invoked (disabled) but it does not apper as
a disabled component.
Instead invoking Button#setEnabled( false ) will render the button disabled.
I think it
Well, a Link can be attached to any HTML element so I think it can not
know (in general) how to render the element disabled. A Button component
can only be attached to an html button; for an html button it is known
what to do.
One could argue that the Link component can see what type of element
