Firing the Event Using JavaScript Code Internally

Hi,

 I created my own custom event and need to fire that event using Javascript code. See the below code which is from thirdparty API which contain the ItemChangeHandler.

It will fire the event internally using javascript.So i need to implement the same way in GWT.Does any one have any idea on this?Thanks in advance..

 public HandlerRegistration addItemChangeHandler(com.smartgwt.client.widgets.form.events.ItemChangeHandler handler) {

        if(getHandlerCount(com.smartgwt.client.widgets.form.events.ItemChangeEvent.getType()) == 0) setupItemChangeEvent();

        return doAddHandler(handler, com.smartgwt.client.widgets.form.events.ItemChangeEvent.getType());

    }

    private native void setupItemChangeEvent() /*-{

        var obj = null;

        var selfJ = this;

        if(this.@com.smartgwt.client.widgets.BaseWidget::isCreated()()) {

            obj = this.@com.smartgwt.client.widgets.BaseWidget::getJsObj()();

            obj.addProperties({itemChange:$debox($entry(function(){

                        var param = {"item" : arguments[0], "newValue" : arguments[1], "oldValue" : arguments[2]};

                        var event = @com.smartgwt.client.widgets.form.events.ItemChangeEvent::new(Lcom/google/gwt/core/client/JavaScriptObject;)(param);

                        selfJ.@com.smartgwt.client.widgets.BaseWidget::fireEvent(Lcom/google/gwt/event/shared/GwtEvent;)(event);

                        var ret = event.@com.smartgwt.client.event.Cancellable::isCancelled()();

                        return !ret;

                    }))

             });

        } else {

            obj = this.@com.smartgwt.client.widgets.BaseWidget::getConfig()();

            obj.itemChange = $debox($entry(function(){

                   var param = {"item" : arguments[0], "newValue" : arguments[1], "oldValue" : arguments[2]};

                   var event = @com.smartgwt.client.widgets.form.events.ItemChangeEvent::new(Lcom/google/gwt/core/client/JavaScriptObject;)(param);

                   selfJ.@com.smartgwt.client.widgets.BaseWidget::fireEvent(Lcom/google/gwt/event/shared/GwtEvent;)(event);

                   var ret = event.@com.smartgwt.client.event.Cancellable::isCancelled()();

                   return !ret;

               }));

        }

   }-*/;

--
You received this message because you are subscribed to the Google Groups "Google Web Toolkit" group.
To unsubscribe from this group and stop receiving emails from it, send an email to google-web-toolkit+unsubscribe@googlegroups.com.
To post to this group, send email to google-web-toolkit@googlegroups.com.
Visit this group at http://groups.google.com/group/google-web-toolkit.
For more options, visit https://groups.google.com/d/optout.