Ajax back/forward button support

[Martin Grigorov <ma...@fredhopper.com>]

Hi,

I just committed a demo implementation of a basic support for back and
forward buttons for Ajax requests.

The code could be found at:
impl:
https://wicket-stuff.svn.sourceforge.net/svnroot/wicket-stuff/trunk/wicketstuff-jquery/src/main/java/org/wicketstuff/jquery/ajaxbackbutton

examples:
code:
https://wicket-stuff.svn.sourceforge.net/svnroot/wicket-stuff/trunk/wicketstuff-jquery-examples/src/main/java/org/wicketstuff/jquery/ajaxbackbutton 
jetty:
http://localhost:8080/backbutton/Page4AjaxBackButton/

The idea is the same as GWT:
http://code.google.com/docreader/#p=google-web-toolkit-doc-1-5&s=google-web-toolkit-doc-1-5&t=DevGuideHistory

Clicking on back/forward buttons notifies you at the server side and
tells you the #hash which is the wicket id of the component which
registered this history entry. 

In contrast to Wicket's back button support for non-Ajax pages (which
saves the whole pages in the page store) this implementation don't
creates new versions at all. It just notifies you that the buttons are
clicked - you (the developer) should take care of this notification.
No saving new versions leads to the known problem that you'll have no
history for the page after leaving it and returning back. But it should
work good enough for apps like GMail.

Any feedback is welcome! Bad feedback is prefered ;-)

martin-g 


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