/*
* #!
* Ontopoly Editor
* #-
* Copyright (C) 2001 - 2013 The Ontopia Project
* #-
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
* !#
*/
package ontopoly.utils;
import org.apache.wicket.Component;
import org.apache.wicket.behavior.AbstractBehavior;
import org.apache.wicket.markup.html.IHeaderResponse;
/**
* Behaviour that uses JavaScript to assign focus to component on page load.
*
* @author grove
*
*/
public class FocusOnLoadBehaviour extends AbstractBehavior {
private Component component;
public void bind(Component component) {
this.component = component;
component.setOutputMarkupId(true);
}
public void renderHead(IHeaderResponse iHeaderResponse) {
super.renderHead(iHeaderResponse);
iHeaderResponse.renderOnLoadJavascript("var focusElement = document.getElementById('"+ component.getMarkupId() + "'); if (focusElement != null) focusElement.focus();");
}
public boolean isTemporary() {
// remove the behavior after component has been rendered
return true;
}
}