Java tutorial
/** * Copyright (C) 2010 Asterios Raptis * * 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 org.jaulp.wicket.behaviors; import java.util.ArrayList; import java.util.List; import lombok.Getter; import org.apache.log4j.Logger; import org.apache.wicket.Component; import org.apache.wicket.behavior.Behavior; import org.apache.wicket.markup.head.IHeaderResponse; import org.apache.wicket.markup.head.OnDomReadyHeaderItem; import org.apache.wicket.util.lang.Args; import org.odlabs.wiquery.core.javascript.ChainableStatement; import org.odlabs.wiquery.core.javascript.JsStatement; public class JqueryStatementsBehavior extends Behavior { /** The Constant logger. */ protected static final Logger LOGGER = Logger.getLogger(JqueryStatementsBehavior.class.getName()); /** The Constant serialVersionUID. */ private static final long serialVersionUID = 1L; private List<ChainableStatement> chainableStatement; @Getter private CharSequence renderedStatement; @Getter private boolean rendered; public JqueryStatementsBehavior() { this.chainableStatement = new ArrayList<>(); } public JqueryStatementsBehavior(List<ChainableStatement> chainableStatement) { Args.notNull(chainableStatement, "chainableStatement"); this.chainableStatement = chainableStatement; } @Override public void renderHead(Component component, IHeaderResponse response) { CharSequence renderedStatement = createRenderedStatement(component); response.render(OnDomReadyHeaderItem.forScript(renderedStatement)); } public JqueryStatementsBehavior add(ChainableStatement defaultChainableStatement) { this.chainableStatement.add(defaultChainableStatement); return this; } public CharSequence createRenderedStatement(Component component) { component.setOutputMarkupId(true); JsStatement statement = new JsStatement().$(component); for (ChainableStatement defaultChainableStatement : chainableStatement) { statement.chain(defaultChainableStatement); } this.renderedStatement = statement.render(); this.rendered = true; return this.renderedStatement; } }