I thought adding respond was the ajax call to the server, am I wrong? I didn't work much with ajax, i am sorry
2013/11/11 Martin Grigorov <[email protected]> > Did you do what I suggested you ? > > > On Mon, Nov 11, 2013 at 3:49 PM, Daniela L <[email protected]> wrote: > > > Hi, > > > > I have tryed to change to AbstractDefaultAjaxBehavior like I described > > below, but respond is never called. What am I doing wrong? > > > > > > Hi, > > > > as far as I have understood this can only be achieved, if I subclass > > AbstractDefaultAjaxBehavior like this? > > > > public class PageExitWarningBehavior extends AbstractDefaultAjaxBehavior > { > > @Override > > protected void respond(AjaxRequestTarget target) { > > > > AppointmentSession.get().releaseSavedBlockedFreeCalendarEvent(); > > } > > > > > > Hi, > > > > You need to make an Ajax call to the server. > > > > > > On Mon, Nov 11, 2013 at 2:10 PM, Daniela L <[email protected]> > > <[email protected]><[email protected]> <[email protected]> > > wrote: > > > > > > Hi, > > this is my first question, so i hope I get everything right. > > > > I am trying to catch the event of the user closing the browser window in > > wicket. > > > > I followed this example: > > > > > http://stackoverflow.com/questions/16527463/call-java-component-from-javascript-and-retreive-value > > > > and I managed to get the example working so the message is displayed, > but I > > have no idea how to get the event triggered by the javascript function in > > wicket. I need this because when the user closes the browser window I > want > > to update some data in my database. > > Here is what I have tryed: > > > > > > RequiredTextField<String> myTextField = new > > RequiredTextField<String>("myTextField"); > > myTextField.setOutputMarkupPlaceholderTag(true); > > myTextField.add(new PageExitWarningBehavior(){ > > @Override > > public void onEvent(Component component, IEvent<?> event) > > { > > //this isn't ever called > > MySession.get().releaseBlockedDataFromDatabase(); > > } > > }); > > > > public class PageExitWarningBehavior extends Behavior { > > @Override > > public void renderHead(Component component, IHeaderResponse > > response) { > > super.renderHead(component, response); > > response.render(new > > OnDomReadyHeaderItem("window.onbeforeunload = function (e) {" > > > > > > + "Wicket.Ajax.get({u: '"+getCallbackUrl()+"', > async: > > false});" > > > > > > + "var message = 'Your confirmation message goes > > here.'," > > > > + "e = e || window.event;" + "if (e) {" > > > > + "e.returnValue = message;" + "}" + "return message;" > + > > "};")); > > } > > } > > > > What am I missing? Thank you very much in advance > > >
