Java tutorial
/** * * geo-platform * Rich webgis framework * http://geo-platform.org * ==================================================================== * * Copyright (C) 2008-2014 geoSDI Group (CNR IMAA - Potenza - ITALY). * * This program is free software: you can redistribute it and/or modify it * under the terms of the GNU General Public License as published by * the Free Software Foundation, either version 3 of the License, or * (at your option) any later version. This program is distributed in the * hope that it will be useful, but WITHOUT ANY WARRANTY; without * even the implied warranty of MERCHANTABILITY or FITNESS FOR * A PARTICULAR PURPOSE. See the GNU General Public License * for more details. You should have received a copy of the GNU General * Public License along with this program. If not, see http://www.gnu.org/licenses/ * * ==================================================================== * * Linking this library statically or dynamically with other modules is * making a combined work based on this library. Thus, the terms and * conditions of the GNU General Public License cover the whole combination. * * As a special exception, the copyright holders of this library give you permission * to link this library with independent modules to produce an executable, regardless * of the license terms of these independent modules, and to copy and distribute * the resulting executable under terms of your choice, provided that you also meet, * for each linked independent module, the terms and conditions of the license of * that module. An independent module is a module which is not derived from or * based on this library. If you modify this library, you may extend this exception * to your version of the library, but you are not obligated to do so. If you do not * wish to do so, delete this exception statement from your version. */ package org.geosdi.geoplatform.gui.configuration.resources; import com.google.gwt.dom.client.Document; import com.google.gwt.dom.client.Element; import com.google.gwt.dom.client.HeadElement; import com.google.gwt.dom.client.ScriptElement; /** * * @author Giuseppe La Scaleia - CNR IMAA geoSDI Group * @email giuseppe.lascaleia@geosdi.org */ class GPAbstractInjector { private static HeadElement head; protected static HeadElement getHead() { if (head == null) { Element element = Document.get().getElementsByTagName("head").getItem(0); assert element != null : "The host HTML page does not have a <head> element" + " which is required by GPAbstractInjector"; GPAbstractInjector.head = HeadElement.as(element); } return GPAbstractInjector.head; } protected static ScriptElement createScriptElement() { ScriptElement script = Document.get().createScriptElement(); script.setAttribute(ScriptKeywordEnum.SCRIPT_LANGUAGE.getValue().getKey(), ScriptKeywordEnum.SCRIPT_LANGUAGE.getValue().getValue()); script.setAttribute(ScriptKeywordEnum.SCRIPT_TYPE.getValue().getKey(), ScriptKeywordEnum.SCRIPT_TYPE.getValue().getValue()); script.setAttribute(ScriptKeywordEnum.SCRIPT_CHARSET.getValue().getKey(), ScriptKeywordEnum.SCRIPT_CHARSET.getValue().getValue()); return script; } }