Wicket's ajax functions require you to load the wicket ajax javascript.
This is handled by the AbstractDefaultAjaxBahavior out of the box.
However, since you do not call super.renderHead(component,response) in
your code, the required javascript files are not loaded.
Met vriendelijke groet,
Kind regards,
Bas Gooren
Op 3-7-2013 19:09, schreef Andun Sameera:
Hi All,
I have looked in to this topic in many places and found some ways. In this
particular scenario, I have used
https://cwiki.apache.org/confluence/display/WICKET/Calling+Wicket+from+Javascriptarticle
as the reference.
What I did in Java,
public class HomePage extends WebPage {
private static final long serialVersionUID = 1L;
public HomePage(final PageParameters parameters) {
super(parameters);
final AbstractDefaultAjaxBehavior behave = new
AbstractDefaultAjaxBehavior() {
protected void respond(final AjaxRequestTarget target) {
target.add(new Label("foo", "Yeah I was just called from
Javascript!"));
}
public void renderHead(Component component,IHeaderResponse
response){
String componentMarkupId = component.getMarkupId();
String callbackUrl = getCallbackUrl().toString();
response.render(JavaScriptHeaderItem.forScript("var
componentMarkupId='"+componentMarkupId+"'; var
callbackUrl='"+callbackUrl+"';","values"));
}
};
add(behave);
}
}
and my HomePage.html,
<!DOCTYPE HTML>
<html>
<body>
<script src="http://ajax.googleapis.com/ajax/libs/jquery/1.6.1/jquery.min.js
"></script>
<script type="text/javascript">
$(function() {
var wcall = Wicket.Ajax.get({ u: '${callbackUrl}' + '' });
alert(wcall);
});
</script>
</body>
</html>
What I tried to do is call the get ajax method using the vars I have
initialized. But when my page loads, in the firebug console it says,
ReferenceError: Wicket is not defined
[Break On This Error]
var wcall = Wicket.Ajax.get({ u: '${callbackUrl}' + '' });
What has gone wrong here ?
Is there any other good way to call Java Function from Javascript?
Thanks!
