Java tutorial
/* * This library is part of OpenCms - * the Open Source Content Management System * * Copyright (c) Alkacon Software GmbH (http://www.alkacon.com) * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; either * version 2.1 of the License, or (at your option) any later version. * * This library 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 * Lesser General Public License for more details. * * For further information about Alkacon Software, please see the * company website: http://www.alkacon.com * * For further information about OpenCms, please see the * project website: http://www.opencms.org * * You should have received a copy of the GNU Lesser General Public * License along with this library; if not, write to the Free Software * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */ package com.alkacon.opencms.v8.calendar.client.widget; import com.alkacon.opencms.v8.calendar.shared.rpc.I_CmsSerialDateService; import com.alkacon.opencms.v8.calendar.shared.rpc.I_CmsSerialDateServiceAsync; import com.alkacon.vie.client.Entity; import org.opencms.ade.contenteditor.client.CmsContentEditor; import org.opencms.ade.contenteditor.client.I_CmsEntityChangeListener; import org.opencms.ade.contenteditor.client.widgets.CmsSelectWidget; import org.opencms.ade.contenteditor.shared.CmsContentDefinition; import org.opencms.gwt.client.CmsCoreProvider; import org.opencms.gwt.client.rpc.CmsRpcAction; import org.opencms.gwt.client.util.CmsDebugLog; import org.opencms.util.CmsStringUtil; import java.util.HashMap; import java.util.Map; import com.google.gwt.core.client.GWT; import com.google.gwt.event.logical.shared.ValueChangeEvent; import com.google.gwt.user.client.rpc.ServiceDefTarget; /** * Provides a DHTML calendar widget, for use on a widget dialog.<p> * * */ public class CmsSerialDateSelectWidget extends CmsSelectWidget { /** Test */ private static I_CmsSerialDateServiceAsync SERVICE; /** The String of select configuration. */ String m_selectValues = ""; /** The entry count. */ private int m_entryCount; /** The locale. */ private String m_locale; /** The set value.*/ private String m_value; /** * Constructs an CmsComboWidget with the in XSD schema declared configuration.<p> * @param config The configuration string given from OpenCms XSD. */ public CmsSerialDateSelectWidget(String config) { super(""); String[] configs = config.split(";"); m_entryCount = Integer.parseInt(configs[0]); m_locale = configs[1]; getNewValues(CmsContentDefinition.getValueForPath(CmsContentEditor.getEntity(), "Serialdate")); CmsContentEditor.addEntityChangeListener(new I_CmsEntityChangeListener() { public void onEntityChange(Entity entity) { getNewValues(CmsContentDefinition.getValueForPath(entity, "Serialdate")); } }, "Serialdate"); } /** * Returns the long value of the given String or the default value if parsing the String fails.<p> * * @param strValue the String to parse * @param defaultValue the default value to use if parsing fails * @return the long value of the given String */ protected static long getLongValue(String strValue, long defaultValue) { long result = defaultValue; if (CmsStringUtil.isNotEmptyOrWhitespaceOnly(strValue)) { try { result = Long.parseLong(strValue); } catch (NumberFormatException e) { // no number, use default value } } return result; } /** * @see org.opencms.ade.contenteditor.client.widgets.CmsSelectWidget#setValue(java.lang.String, boolean) */ @Override public void setValue(String value, boolean fireEvents) { if (!m_selectBox.getItems().containsKey(value)) { Map<String, String> val = new HashMap<String, String>(); val.put(value, value); m_selectBox.setItems(val); } super.setValue(value, fireEvents); m_value = value; } /** * @see org.opencms.ade.contenteditor.client.widgets.CmsSelectWidget#fireChangeEvent() */ @Override public void fireChangeEvent() { m_value = m_selectBox.getFormValueAsString(); ValueChangeEvent.fire(this, m_selectBox.getFormValueAsString()); } /** * Checks if the select values have to be change.<p> * * @param serialDateValue the serial date widget value * */ protected void getNewValues(String serialDateValue) { if (!m_selectValues.equals(serialDateValue)) { m_selectValues = serialDateValue; if (!m_selectValues.isEmpty()) { generateNewSelection(m_selectValues); } } } /** * Returns the container-page RPC service.<p> * * @return the container-page service */ protected I_CmsSerialDateServiceAsync getService() { if (SERVICE == null) { SERVICE = GWT.create(I_CmsSerialDateService.class); String serviceUrl = CmsCoreProvider.get() .link("com.alkacon.opencms.v8.calendar.CmsSerialDateService.gwt"); ((ServiceDefTarget) SERVICE).setServiceEntryPoint(serviceUrl); } return SERVICE; } /** * Updates the selection of this select box.<p> * @param newValues Map of the select options * */ protected void updateSelection(Map<String, String> newValues) { m_selectBox.setItems(newValues); CmsDebugLog.getInstance().printLine("m_value= " + m_value); CmsDebugLog.getInstance() .printLine("newValues contains: " + m_value + " = " + newValues.containsKey(m_value)); if (newValues.containsKey(m_value)) { setValue(m_value); } else { setValue(""); } } /** * Generates the new select values an sets them.<p> * @param selectValues the values to be selected * * */ private void generateNewSelection(String selectValues) { // generate a list of all configured categories. final String locale = m_locale; final String values = selectValues; final int entryCount = m_entryCount; // start request CmsRpcAction<Map<String, String>> action = new CmsRpcAction<Map<String, String>>() { /** * @see org.opencms.gwt.client.rpc.CmsRpcAction#onResponse(java.lang.Object) */ @Override public void execute() { getService().getSeriaDateSelection(values, locale, entryCount, this); } /** * @see org.opencms.gwt.client.rpc.CmsRpcAction#onResponse(java.lang.Object) */ @Override protected void onResponse(Map<String, String> result) { updateSelection(result); } }; action.execute(); } }