Java tutorial
/* ********************************************************************** ** ** Copyright notice ** ** ** ** (c) 2005-2010 RSSOwl Development Team ** ** http://www.rssowl.org/ ** ** ** ** All rights reserved ** ** ** ** This program and the accompanying materials are made available under ** ** the terms of the Eclipse Public License v1.0 which accompanies this ** ** distribution, and is available at: ** ** http://www.rssowl.org/legal/epl-v10.html ** ** ** ** A copy is found in the file epl-v10.html and important notices to the ** ** license from the team is found in the textfile LICENSE.txt distributed ** ** in this package. ** ** ** ** This copyright notice MUST APPEAR in all copies of the file! ** ** ** ** Contributors: ** ** RSSOwl Development Team - initial API and implementation ** ** ** ** ********************************************************************** */ package org.rssowl.ui.internal.dialogs; import org.eclipse.jface.dialogs.IDialogConstants; import org.eclipse.jface.dialogs.MessageDialog; import org.eclipse.jface.dialogs.TitleAreaDialog; import org.eclipse.jface.resource.JFaceResources; import org.eclipse.jface.resource.LocalResourceManager; import org.eclipse.swt.SWT; import org.eclipse.swt.layout.GridData; import org.eclipse.swt.layout.GridLayout; import org.eclipse.swt.widgets.Composite; import org.eclipse.swt.widgets.Control; import org.eclipse.swt.widgets.Label; import org.eclipse.swt.widgets.Shell; import org.eclipse.swt.widgets.Text; import org.rssowl.core.Owl; import org.rssowl.core.connection.CredentialsException; import org.rssowl.core.connection.ICredentials; import org.rssowl.core.connection.ICredentialsProvider; import org.rssowl.core.util.StringUtils; import org.rssowl.core.util.SyncUtils; import org.rssowl.ui.internal.Activator; import org.rssowl.ui.internal.OwlUI; import org.rssowl.ui.internal.actions.GmailAuthenticationAction; import org.rssowl.ui.internal.util.GmailCredentials; import org.rssowl.ui.internal.util.LayoutUtils; import java.net.URI; public class GoogleCredentialDialog extends TitleAreaDialog { /* Keep the visible instance saved */ private static GoogleCredentialDialog fVisibleInstance; public static GoogleCredentialDialog getVisibleInstance() { return fVisibleInstance; } /* Fields */ private LocalResourceManager fResources; private Text usernameField; private Text passwordField; private final URI gLink = URI.create(SyncUtils.GMAIL_LOGIN); private ICredentialsProvider gCredProvider = Owl.getConnectionService().getCredentialsProvider(gLink); public GoogleCredentialDialog(Shell parentShell) { super(parentShell); fResources = new LocalResourceManager(JFaceResources.getResources()); } @Override protected void buttonPressed(int buttonId) { /* User pressed SAVE Button */ if (buttonId == IDialogConstants.OK_ID) { final String username = usernameField.getText(); final String password = passwordField.getText(); if (!username.equals("") && !password.equals("")) { //$NON-NLS-1$//$NON-NLS-2$ GmailCredentials credentials = new GmailCredentials(username, password); try { if (gCredProvider != null) { gCredProvider.setAuthCredentials(credentials, gLink, null); } } catch (CredentialsException e) { Activator.getDefault().getLog().log(e.getStatus()); } GmailAuthenticationAction gAuthAction = new GmailAuthenticationAction(); gAuthAction.addGmailFolder(); } else { MessageDialog.openError(this.getParentShell(), "You must enter valid credentials", //$NON-NLS-1$ "Empty strings are not allowed"); //$NON-NLS-1$ } } super.buttonPressed(buttonId); } @Override public boolean close() { fVisibleInstance = null; fResources.dispose(); return super.close(); } @Override protected void configureShell(Shell shell) { super.configureShell(shell); shell.setText(Messages.GoogleCredentialDialog_WINDOW_TITLE); } //Create the Dialog structure /* * @see org.eclipse.jface.dialogs.Dialog#createButtonsForButtonBar(org.eclipse.swt.widgets.Composite) */ @Override protected void createButtonsForButtonBar(Composite parent) { createButton(parent, IDialogConstants.OK_ID, "Save", true); //$NON-NLS-1$ createButton(parent, IDialogConstants.CANCEL_ID, "Cancel", false); //$NON-NLS-1$ } @Override protected Control createDialogArea(Composite parent) { /* Title */ setTitle(Messages.GoogleCredentialDialog_TITLE); /* Title Image */ setTitleImage(OwlUI.getImage(fResources, "icons/wizban/login_wiz.png")); //$NON-NLS-1$ /* Title Message */ setMessage(Messages.GoogleCredentialDialog_MESSAGE); /* Separator */ new Label(parent, SWT.SEPARATOR | SWT.HORIZONTAL) .setLayoutData(new GridData(SWT.FILL, SWT.BEGINNING, true, false)); /* Composite to hold all components */ Composite composite = new Composite(parent, SWT.NONE); composite.setLayout(LayoutUtils.createGridLayout(3, 5, 10)); composite.setLayoutData(new GridData(SWT.FILL, SWT.FILL, true, false)); /* Label for username */ Label userLabel = new Label(composite, SWT.WRAP); userLabel.setLayoutData(new GridData(SWT.FILL, SWT.BEGINNING, true, false)); userLabel.setText(Messages.GoogleCredentialDialog_USERNAME); /* Field for username */ Composite textIndent = new Composite(composite, SWT.NONE); textIndent.setLayoutData(new GridData(SWT.FILL, SWT.BEGINNING, true, false)); textIndent.setLayout(new GridLayout(1, false)); /* Label for username */ Label userSuggestLabel = new Label(composite, SWT.WRAP); userSuggestLabel.setLayoutData(new GridData(SWT.FILL, SWT.BEGINNING, true, false)); userSuggestLabel.setText("@gmail.com"); //$NON-NLS-1$ usernameField = new Text(textIndent, SWT.BORDER); usernameField.setLayoutData(new GridData(SWT.FILL, SWT.BEGINNING, true, false)); usernameField.setFocus(); /* Label for password */ Label passwordLabel = new Label(composite, SWT.WRAP); passwordLabel.setLayoutData(new GridData(SWT.FILL, SWT.BEGINNING, true, false)); passwordLabel.setText(Messages.GoogleCredentialDialog_PASSWORD); /* Field for password */ Composite textIndent2 = new Composite(composite, SWT.NONE); textIndent2.setLayoutData(new GridData(SWT.FILL, SWT.BEGINNING, true, false)); textIndent2.setLayout(new GridLayout(1, false)); passwordField = new Text(textIndent2, SWT.BORDER | SWT.PASSWORD); passwordField.setLayoutData(new GridData(SWT.FILL, SWT.BEGINNING, true, false)); /* Separator */ new Label(parent, SWT.SEPARATOR | SWT.HORIZONTAL) .setLayoutData(new GridData(SWT.FILL, SWT.BEGINNING, true, false)); /* Try loading Credentials from Platform if available */ preload(); applyDialogFont(composite); return composite; } /* * @see org.eclipse.jface.window.Window#getShellStyle() */ @Override protected int getShellStyle() { int style = SWT.TITLE | SWT.BORDER | SWT.CLOSE | getDefaultOrientation(); return style; } @Override public int open() { fVisibleInstance = this; return super.open(); } private void preload() { ICredentials authCredentials = null; try { if (gCredProvider != null) authCredentials = gCredProvider.getAuthCredentials(gLink, null); } catch (CredentialsException e) { Activator.getDefault().getLog().log(e.getStatus()); } if (authCredentials != null) { String username = authCredentials.getUsername(); String password = authCredentials.getPassword(); if (StringUtils.isSet(username)) { usernameField.setText(username); usernameField.selectAll(); } if (StringUtils.isSet(password)) passwordField.setText(password); } } }