Examples of org.apache.wicket.ajax.attributes.IAjaxCallListener

org.apache.wicket.ajax.attributes.IAjaxCallListener

Interface used to listen at the most important points when Wicket performs an Ajax callback.
Ajax call listeners are potential contributors to the page header by implementing {@link org.apache.wicket.markup.html.IComponentAwareHeaderContributor}. E.g. the JavaScript used by the listener may depend on some JavaScript library, by implementing {@link org.apache.wicket.markup.html.IComponentAwareHeaderContributor} interfacethey can assure it will be loaded. @since 6.0


      @Override
      protected void updateAjaxAttributes(AjaxRequestAttributes attributes)
      {
        super.updateAjaxAttributes(attributes);
        IAjaxCallListener ajaxCallListener = new AjaxCallListener() {
          @Override
          public CharSequence getBeforeSendHandler(Component component)
          {
            return "showLoadingIndicator();";
          }


                            @Override
                            protected void updateAjaxAttributes(final AjaxRequestAttributes attributes) {
                                super.updateAjaxAttributes(attributes);


                                IAjaxCallListener ajaxCallListener = new AjaxCallListener() {


                                    private static final long serialVersionUID = 7160235486520935153L;


                                    @Override
                                    public CharSequence getPrecondition(final Component component) {


      @Override
      protected void updateAjaxAttributes(AjaxRequestAttributes attributes)
      {
        super.updateAjaxAttributes(attributes);
        IAjaxCallListener ajaxCallListener = new AjaxCallListener() {
          @Override
          public CharSequence getBeforeHandler(Component component)
          {
            return "showLoadingIndicator();";
          }

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