Java tutorial
/******************************************************************************* * Copyright 2011 Alex 'Ript' Malyshev <alexript@gmail.com> * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. ******************************************************************************/ package net.autosauler.ballance.client.gui; import java.util.Date; import net.autosauler.ballance.client.Ballance_autosauler_net; import net.autosauler.ballance.client.Services; import net.autosauler.ballance.client.SessionId; import net.autosauler.ballance.client.gui.messages.M; import net.autosauler.ballance.shared.UserRole; import com.extjs.gxt.ui.client.Style.HorizontalAlignment; import com.extjs.gxt.ui.client.event.ButtonEvent; import com.extjs.gxt.ui.client.event.ComponentEvent; import com.extjs.gxt.ui.client.event.Events; import com.extjs.gxt.ui.client.event.KeyListener; import com.extjs.gxt.ui.client.event.SelectionListener; import com.extjs.gxt.ui.client.widget.ContentPanel; import com.extjs.gxt.ui.client.widget.Info; import com.extjs.gxt.ui.client.widget.button.Button; import com.extjs.gxt.ui.client.widget.form.FormPanel; import com.extjs.gxt.ui.client.widget.form.TextField; import com.extjs.gxt.ui.client.widget.layout.FormData; import com.google.gwt.event.dom.client.KeyCodes; import com.google.gwt.user.client.Cookies; import com.google.gwt.user.client.rpc.AsyncCallback; import com.google.gwt.user.client.ui.HasHorizontalAlignment; import com.google.gwt.user.client.ui.Label; /** * The Class AuthPanel. */ public class AuthPanel extends SelectionListener<ButtonEvent> implements IDialogYesReceiver { /** The auth panel. */ private final FormPanel authPanel = new FormPanel(); /** The login text. */ private TextField<String> loginText = null; /** The password text. */ private TextField<String> passwordText = null; /** The ok button. */ private Button okButton = null; /** The cancel button. */ private Button cancelButton = null; /** The logout button. */ private Button logoutButton = null; private final FormData formData; /** * Instantiates a new auth panel. * * @param title * the title */ public AuthPanel(String title, ContentPanel cp) { formData = new FormData("-20"); authPanel.setHeading(title); authPanel.setFrame(true); authPanel.setWidth("240px"); authPanel.setButtonAlign(HorizontalAlignment.CENTER); authPanel.setHeight("136px"); authPanel.setCollapsible(true); // // Window.alert("check " + Ballance_autosauler_net.isLoggedIn()); if (Ballance_autosauler_net.isLoggedIn()) { constructHelloPane(); } else { constructAuthForm(); } cp.add(authPanel); } @Override public void componentSelected(ButtonEvent event) { if (event.getSource().equals(okButton)) { // let's auth onOkButton(); } else if (event.getSource().equals(cancelButton)) { // clean form authPanel.reset(); } else if (event.getSource().equals(logoutButton)) { new QuestionDialog(M.auth.qtnLogout(), this, "logout").show(); } } /** * Construct auth form. */ private void constructAuthForm() { if (Ballance_autosauler_net.menu != null) { Ballance_autosauler_net.menu.buildContent(); } authPanel.removeAll(); authPanel.getButtonBar().removeAll(); logoutButton = null; loginText = new TextField<String>(); loginText.setFieldLabel(M.auth.labelLogin()); loginText.setAllowBlank(false); loginText.getFocusSupport().setPreviousId(authPanel.getButtonBar().getId()); loginText.setMinLength(5); loginText.addKeyListener(new KeyListener() { @Override public void componentKeyPress(ComponentEvent event) { if (event.getKeyCode() == KeyCodes.KEY_ENTER) { passwordText.focus(); } } }); authPanel.add(loginText, formData); passwordText = new TextField<String>(); passwordText.setFieldLabel(M.auth.labelPssword()); passwordText.setPassword(true); passwordText.setMinLength(5); passwordText.setAllowBlank(false); passwordText.addKeyListener(new KeyListener() { @Override public void componentKeyPress(ComponentEvent event) { if (event.getKeyCode() == KeyCodes.KEY_ENTER) { onOkButton(); } } }); authPanel.add(passwordText, formData); okButton = new Button(M.auth.btnLogin()); okButton.addSelectionListener(this); authPanel.addButton(okButton); cancelButton = new Button(M.auth.btnCancel()); cancelButton.addSelectionListener(this); authPanel.addButton(cancelButton); } /** * Construct hello pane. */ private void constructHelloPane() { authPanel.removeAll(); authPanel.getButtonBar().removeAll(); loginText = null; passwordText = null; okButton = null; cancelButton = null; Label helloLabel = new Label(); helloLabel.setText(M.auth.helloUserMsg(Ballance_autosauler_net.sessionId.getUsername())); helloLabel.setHorizontalAlignment(HasHorizontalAlignment.ALIGN_CENTER); authPanel.add(helloLabel); UserRole userrole = Ballance_autosauler_net.sessionId.getUserrole(); RolesWidget roleswidget = new RolesWidget(userrole); roleswidget.setHorizontalAlignment(HasHorizontalAlignment.ALIGN_CENTER); authPanel.add(roleswidget); logoutButton = new Button(M.auth.btnLogout()); logoutButton.addSelectionListener(this); authPanel.addButton(logoutButton); if (Ballance_autosauler_net.menu != null) { Ballance_autosauler_net.menu.buildContent(); } } /** * Login action. */ public void loginAction() { constructHelloPane(); authPanel.recalculate(); authPanel.layout(true); authPanel.fireEvent(Events.Refresh); Info.display("Auth", M.auth.helloUserMsg(Ballance_autosauler_net.sessionId.getUsername())); } /** * Logoff action. */ public void logoffAction() { constructAuthForm(); authPanel.recalculate(); authPanel.layout(true); authPanel.fireEvent(Events.Refresh); } /* * (non-Javadoc) * * @see * net.autosauler.ballance.client.gui.IDialogYesReceiver#onDialogYesButtonClick * (java.lang.String) */ @Override public void onDialogYesButtonClick(String tag, Object tag2) { if (tag.equals("logout")) { MainPanel.setCommInfo(true); Services.auth.logoff(new AsyncCallback<Void>() { @Override public void onFailure(Throwable caught) { MainPanel.setCommInfo(false); new AlertDialog(caught).show(); } @Override public void onSuccess(Void result) { Ballance_autosauler_net.logoutSequence(); MainPanel.setCommInfo(false); } }); } } /** * On ok button. */ private void onOkButton() { String login = loginText.getValue().trim(); String password = passwordText.getValue().trim(); if (!authPanel.isValid()) { return; } MainPanel.setCommInfo(true); Services.auth.chkAuth(login, password, new AsyncCallback<SessionId>() { @Override public void onFailure(Throwable caught) { MainPanel.setCommInfo(false); Info.display("Error", M.auth.commError()); new AlertDialog(caught).show(); } @Override public void onSuccess(SessionId result) { if (result != null) { Ballance_autosauler_net.setLoggedInState(true); Cookies.setCookie("session", result.getSessionId(), new Date(System.currentTimeMillis() + Ballance_autosauler_net.COOKIE_TIME)); Ballance_autosauler_net.sessionId.setSessionId(result.getSessionId()); Ballance_autosauler_net.sessionId.setUsername(result.getUsername()); Ballance_autosauler_net.sessionId.setUserrole(result.getUserrole()); loginAction(); } else { Ballance_autosauler_net.setLoggedInState(false); logoffAction(); Info.display("Auth error", M.auth.badAuth()); } // end else MainPanel.setCommInfo(false); } }); } }