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; import java.util.List; import com.ephesoft.dcma.core.common.FileType; import com.ephesoft.dcma.core.common.FileWrapper; import com.ephesoft.dcma.gwt.core.client.View; import com.ephesoft.dcma.gwt.core.client.i18n.LocaleDictionary; import com.ephesoft.dcma.gwt.foldermanager.client.presenter.FolderSystemTreePresenter; import com.ephesoft.dcma.gwt.foldermanager.shared.constant.FolderManagementMessages; import com.google.gwt.core.client.GWT; import com.google.gwt.event.logical.shared.OpenEvent; import com.google.gwt.event.logical.shared.OpenHandler; import com.google.gwt.event.logical.shared.SelectionEvent; import com.google.gwt.event.logical.shared.SelectionHandler; import com.google.gwt.uibinder.client.UiBinder; import com.google.gwt.uibinder.client.UiField; import com.google.gwt.user.client.ui.Tree; import com.google.gwt.user.client.ui.TreeItem; public class FolderSystemTreeView extends View<FolderSystemTreePresenter> { @UiField protected Tree tree; interface Binder extends UiBinder<Tree, FolderSystemTreeView> { } private static final Binder BINDER = GWT.create(Binder.class); public FolderSystemTreeView() { super(); initWidget(BINDER.createAndBindUi(this)); } public void expandTreeItem(TreeItem father, List<FileWrapper> files) { father.removeItems(); for (FileWrapper file : files) { if (file.getKind() == FileType.DIR) { TreeItem newItem = new TreeItem(file.getName()); father.addItem(newItem); if (file.isSubFolderContained()) { newItem.addItem(LocaleDictionary.get().getMessageValue(FolderManagementMessages.LOADING)); } } } } public void createFolderSystemTree(final String parentFolderName) { tree.clear(); tree.setAnimationEnabled(true); TreeItem tItem = new TreeItem(parentFolderName); tItem.addItem(LocaleDictionary.get().getMessageValue(FolderManagementMessages.LOADING)); tree.addOpenHandler(new OpenHandler<TreeItem>() { @Override public void onOpen(OpenEvent<TreeItem> openEvent) { TreeItem targetItem = (TreeItem) openEvent.getTarget(); String path = findPath(targetItem); fetchTreeItems(targetItem, path); presenter.setCurrentTreeItem(targetItem); } }); tree.addSelectionHandler(new SelectionHandler<TreeItem>() { @Override public void onSelection(SelectionEvent<TreeItem> selectionEvent) { TreeItem selectedItem = (TreeItem) selectionEvent.getSelectedItem(); String path = findPath(selectedItem); presenter.refreshTableItems(path); fetchTreeItems(selectedItem, path); presenter.setFooterPath(path); presenter.setCurrentTreeItem(selectedItem); } }); tree.addItem(tItem); tree.setSelectedItem(tItem, true); } public void fetchTreeItems(final TreeItem father, String path) { presenter.fetchTreeItems(father, path); } public String findPath(TreeItem item) { return presenter.findPath(item); } public void setTree(Tree tree) { this.tree = tree; } public Tree getTree() { return tree; } }