Java tutorial
/********************************************************************************* * Ephesoft is a Intelligent Document Capture and Mailroom Automation program * developed by Ephesoft, Inc. Copyright (C) 2010-2012 Ephesoft Inc. * * This program is free software; you can redistribute it and/or modify it under * the terms of the GNU Affero General Public License version 3 as published by the * Free Software Foundation with the addition of the following permission added * to Section 15 as permitted in Section 7(a): FOR ANY PART OF THE COVERED WORK * IN WHICH THE COPYRIGHT IS OWNED BY EPHESOFT, EPHESOFT DISCLAIMS THE WARRANTY * OF NON INFRINGEMENT OF THIRD PARTY RIGHTS. * * 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 Affero General Public License for more * details. * * You should have received a copy of the GNU Affero General Public License along with * this program; if not, see http://www.gnu.org/licenses or write to the Free * Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA * 02110-1301 USA. * * You can contact Ephesoft, Inc. headquarters at 111 Academy Way, * Irvine, CA 92617, USA. or at email address info@ephesoft.com. * * The interactive user interfaces in modified source and object code versions * of this program must display Appropriate Legal Notices, as required under * Section 5 of the GNU Affero General Public License version 3. * * In accordance with Section 7(b) of the GNU Affero General Public License version 3, * these Appropriate Legal Notices must retain the display of the "Ephesoft" logo. * If the display of the logo is not reasonably feasible for * technical reasons, the Appropriate Legal Notices must display the words * "Powered by Ephesoft". ********************************************************************************/ package com.ephesoft.dcma.gwt.foldermanager.client.view.widget; import java.util.Map; import java.util.Set; import java.util.Map.Entry; import com.ephesoft.dcma.gwt.foldermanager.client.event.BatchClassChangeEvent; import com.ephesoft.dcma.gwt.foldermanager.shared.constant.FolderManagementConstants; import com.google.gwt.core.client.GWT; import com.google.gwt.event.dom.client.ChangeEvent; import com.google.gwt.event.dom.client.ChangeHandler; import com.google.gwt.event.shared.HandlerManager; import com.google.gwt.uibinder.client.UiBinder; import com.google.gwt.uibinder.client.UiField; import com.google.gwt.user.client.ui.Composite; import com.google.gwt.user.client.ui.HorizontalPanel; import com.google.gwt.user.client.ui.ListBox; public class FolderSelectionWidget extends Composite { private static final String _150PX = "150px"; @UiField protected HorizontalPanel mainPanel; @UiField protected ListBox batchClassSelectionListBox; interface Binder extends UiBinder<HorizontalPanel, FolderSelectionWidget> { } private static final Binder BINDER = GWT.create(Binder.class); public FolderSelectionWidget(final Map<String, String> batchClassesNameMap, final HandlerManager eventBus) { super(); initWidget(BINDER.createAndBindUi(this)); mainPanel.addStyleName(FolderManagementConstants.OPTIONS_BOX); batchClassSelectionListBox.setWidth(_150PX); batchClassSelectionListBox.addStyleName(FolderManagementConstants.CUSTOM_LIST_BOX); if (null != batchClassesNameMap && !batchClassesNameMap.isEmpty()) { Set<Entry<String, String>> entrySet = batchClassesNameMap.entrySet(); for (Entry<String, String> entry : entrySet) { batchClassSelectionListBox.addItem(entry.getKey()); } fireEventForFolderSelection(batchClassesNameMap, eventBus); batchClassSelectionListBox.addChangeHandler(new ChangeHandler() { @Override public void onChange(ChangeEvent event) { fireEventForFolderSelection(batchClassesNameMap, eventBus); } }); } else { eventBus.fireEvent(new BatchClassChangeEvent()); } } public FolderSelectionWidget(Map<String, String> batchClassesNameMap) { this(batchClassesNameMap, null); } private void fireEventForFolderSelection(final Map<String, String> batchClassesNameMap, final HandlerManager eventBus) { String itemText = batchClassSelectionListBox.getItemText(batchClassSelectionListBox.getSelectedIndex()); if (eventBus != null) { eventBus.fireEvent(new BatchClassChangeEvent(itemText, batchClassesNameMap.get(itemText))); } } }