Java tutorial
package eu.uqasar.web.components.tree.util.theme; /* * #%L * U-QASAR * %% * Copyright (C) 2012 - 2015 U-QASAR Consortium * %% * 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. * #L% */ import org.apache.wicket.Component; import org.apache.wicket.behavior.Behavior; import org.apache.wicket.markup.ComponentTag; import org.apache.wicket.markup.head.CssHeaderItem; import org.apache.wicket.markup.head.IHeaderResponse; import org.apache.wicket.request.resource.CssResourceReference; import org.apache.wicket.request.resource.ResourceReference; public class UQasarTreeTheme extends Behavior { private static final long serialVersionUID = 1L; private static final ResourceReference CSS = new CssResourceReference(UQasarTreeTheme.class, "theme.css"); @Override public void onComponentTag(Component component, ComponentTag tag) { tag.append("class", "tree-theme-uqasar", " "); } @Override public void renderHead(Component component, IHeaderResponse response) { response.render(CssHeaderItem.forReference(CSS)); } }