Java tutorial
/** * OpenKM, Open Document Management System (http://www.openkm.com) * Copyright (c) 2006-2011 Paco Avila & Josep Llort * * No bytes were intentionally harmed during the development of this application. * * 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 2 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, write to the Free Software Foundation, Inc., * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. */ package com.openkm.frontend.client.widget; import java.util.Iterator; import java.util.List; 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.dom.client.ClickEvent; import com.google.gwt.event.dom.client.ClickHandler; import com.google.gwt.user.client.Window; import com.google.gwt.user.client.rpc.AsyncCallback; import com.google.gwt.user.client.ui.Button; import com.google.gwt.user.client.ui.DialogBox; import com.google.gwt.user.client.ui.HTML; import com.google.gwt.user.client.ui.HorizontalPanel; import com.google.gwt.user.client.ui.ListBox; import com.google.gwt.user.client.ui.VerticalPanel; import com.openkm.frontend.client.Main; import com.openkm.frontend.client.bean.GWTDocument; import com.openkm.frontend.client.bean.GWTFolder; import com.openkm.frontend.client.bean.GWTMail; import com.openkm.frontend.client.bean.GWTPropertyGroup; import com.openkm.frontend.client.service.OKMPropertyGroupService; import com.openkm.frontend.client.service.OKMPropertyGroupServiceAsync; /** * Group popup * * @author jllort * */ public class PropertyGroupPopup extends DialogBox { private final OKMPropertyGroupServiceAsync propertyGroupService = (OKMPropertyGroupServiceAsync) GWT .create(OKMPropertyGroupService.class); private VerticalPanel vPanel; private HorizontalPanel hPanel; private Button button; private Button addButton; private ListBox listBox; private String path; /** * About popup */ public PropertyGroupPopup() { // Establishes auto-close when click outside super(false, true); vPanel = new VerticalPanel(); hPanel = new HorizontalPanel(); button = new Button(Main.i18n("button.close"), new ClickHandler() { @Override public void onClick(ClickEvent event) { hide(); } }); addButton = new Button(Main.i18n("button.add"), new ClickHandler() { @Override public void onClick(ClickEvent event) { addGroup(); hide(); } }); listBox = new ListBox(); listBox.addChangeHandler(new ChangeHandler() { @Override public void onChange(ChangeEvent arg0) { if (listBox.getSelectedIndex() > 0) { addButton.setEnabled(true); } else { addButton.setEnabled(false); } } }); listBox.setStyleName("okm-Select"); vPanel.setWidth("300px"); vPanel.setHeight("50px"); button.setStyleName("okm-Button"); addButton.setStyleName("okm-Button"); addButton.setEnabled(false); hPanel.add(button); hPanel.add(new HTML(" ")); hPanel.add(addButton); hPanel.setCellHorizontalAlignment(button, VerticalPanel.ALIGN_CENTER); hPanel.setCellHorizontalAlignment(addButton, VerticalPanel.ALIGN_CENTER); vPanel.add(new HTML("<br>")); vPanel.add(listBox); vPanel.add(new HTML("<br>")); vPanel.add(hPanel); vPanel.add(new HTML("<br>")); vPanel.setCellHorizontalAlignment(listBox, VerticalPanel.ALIGN_CENTER); vPanel.setCellHorizontalAlignment(hPanel, VerticalPanel.ALIGN_CENTER); super.hide(); setWidget(vPanel); } /** * Gets asyncronous to get all groups */ final AsyncCallback<List<GWTPropertyGroup>> callbackGetAllGroups = new AsyncCallback<List<GWTPropertyGroup>>() { public void onSuccess(List<GWTPropertyGroup> result) { listBox.clear(); listBox.addItem("", ""); // Adds empty value for (Iterator<GWTPropertyGroup> it = result.iterator(); it.hasNext();) { GWTPropertyGroup group = it.next(); listBox.addItem(group.getLabel(), group.getName()); } } public void onFailure(Throwable caught) { Main.get().showError("GetAllGroups", caught); } }; /** * Gets asyncronous to add a group */ final AsyncCallback<Object> callbackAddGroup = new AsyncCallback<Object>() { public void onSuccess(Object result) { Object node = Main.get().mainPanel.topPanel.toolBar.getActualNode(); if (node != null) { if (Main.get().mainPanel.topPanel.toolBar.isNodeDocument()) { GWTDocument doc = (GWTDocument) Main.get().mainPanel.topPanel.toolBar.getActualNode(); Main.get().mainPanel.desktop.browser.tabMultiple.tabDocument.setProperties(doc); } else if (Main.get().mainPanel.topPanel.toolBar.isNodeFolder()) { GWTFolder folder = (GWTFolder) Main.get().mainPanel.topPanel.toolBar.getActualNode(); Main.get().mainPanel.desktop.browser.tabMultiple.tabFolder.setProperties(folder); } else if (Main.get().mainPanel.topPanel.toolBar.isNodeMail()) { GWTMail mail = (GWTMail) Main.get().mainPanel.topPanel.toolBar.getActualNode(); Main.get().mainPanel.desktop.browser.tabMultiple.tabMail.setProperties(mail); } // Case there's only two items (white and other) and this is added, then // there's no item to be added and must disable addPropertyGroup if (listBox.getItemCount() == 2) { Main.get().mainPanel.topPanel.toolBar.disableAddPropertyGroup(); } } } public void onFailure(Throwable caught) { Main.get().showError("AddGroup", caught); } }; /** * Enables close button */ public void enableClose() { button.setEnabled(true); Main.get().mainPanel.setVisible(true); // Shows main panel when all widgets are loaded } /** * Language refresh */ public void langRefresh() { setText(Main.i18n("group.label")); button.setText(Main.i18n("button.close")); addButton.setText(Main.i18n("button.add")); } /** * Show the popup error * * @param msg Error message */ public void show() { setText(Main.i18n("group.label")); getAllGroups(); // Gets all groups addButton.setEnabled(false); int left = (Window.getClientWidth() - 300) / 2; int top = (Window.getClientHeight() - 100) / 2; setPopupPosition(left, top); super.show(); } /** * Gets all property groups */ private void getAllGroups() { path = Main.get().mainPanel.topPanel.toolBar.getActualNodePath(); if (!path.equals("")) { propertyGroupService.getAllGroups(path, callbackGetAllGroups); } } /** * Add a group to a document */ private void addGroup() { if (listBox.getSelectedIndex() > 0) { String grpName = listBox.getValue(listBox.getSelectedIndex()); if (path != null && !path.equals("")) { propertyGroupService.addGroup(path, grpName, callbackAddGroup); } } } }