Java tutorial
/* * Licensed to the Apache Software Foundation (ASF) under one * or more contributor license agreements. See the NOTICE file * distributed with this work for additional information * regarding copyright ownership. The ASF licenses this file * to you 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 org.apache.directory.studio.connection.ui.dialogs; import org.apache.commons.lang.StringUtils; import org.apache.directory.api.util.Strings; import org.apache.directory.studio.common.ui.CommonUIUtils; import org.apache.directory.studio.common.ui.widgets.BaseWidgetUtils; import org.eclipse.jface.dialogs.Dialog; import org.eclipse.jface.dialogs.IDialogConstants; import org.eclipse.swt.SWT; import org.eclipse.swt.events.SelectionAdapter; import org.eclipse.swt.events.SelectionEvent; import org.eclipse.swt.layout.GridData; import org.eclipse.swt.layout.GridLayout; import org.eclipse.swt.widgets.Button; import org.eclipse.swt.widgets.Composite; import org.eclipse.swt.widgets.Control; import org.eclipse.swt.widgets.Group; import org.eclipse.swt.widgets.Label; import org.eclipse.swt.widgets.Shell; import org.eclipse.swt.widgets.Text; /** * The ResetPasswordDialog is used to ask the user his current password * (for verification purposes) and a new (verified) password. * <p> * It has a useful checkbox that can show/hide the typed passwords. * * @author <a href="mailto:dev@directory.apache.org">Apache Directory Project</a> */ public class ResetPasswordDialog extends Dialog { /** The title of the dialog */ private String title; /** The message to display, or <code>null</code> if none */ private String message; /** The current password value; the empty string by default */ private String currentPassword = StringUtils.EMPTY; //$NON-NLS-1$ /** The new password value; the empty string by default */ private String newPassword = StringUtils.EMPTY; //$NON-NLS-1$ // UI Widgets /** The OK button */ private Button okButton; /** The Current Password Text */ private Text currentPasswordText; /** The Show Current Password Checkbox */ private Button showCurrentPasswordCheckbox; /** The New Password Text */ private Text newPasswordText; /** The Show New Password checkbox */ private Button showNewPasswordCheckbox; /** The Verify New Password Text */ private Text verifyNewPasswordText; /** The Show Verify New Password button */ private Button showVerifyNewPasswordCheckbox; /** * Creates a new instance of CredentialsDialog. * * @param parentShell the parent shell * @param title the title * @param message the dialog message * @param initialValue the initial value */ public ResetPasswordDialog(Shell parentShell, String title, String message, String initialValue) { super(parentShell); this.title = title; this.message = message; if (initialValue == null) { currentPassword = StringUtils.EMPTY; //$NON-NLS-1$ } else { currentPassword = initialValue; } } /** * {@inheritDoc} */ @Override protected void configureShell(Shell shell) { super.configureShell(shell); shell.setText(CommonUIUtils.getTextValue(title)); } /** * {@inheritDoc} */ @Override protected void createButtonsForButtonBar(Composite parent) { okButton = createButton(parent, IDialogConstants.OK_ID, IDialogConstants.OK_LABEL, true); createButton(parent, IDialogConstants.CANCEL_ID, IDialogConstants.CANCEL_LABEL, false); validate(); } /** * {@inheritDoc} */ @Override protected void buttonPressed(int buttonId) { if (buttonId == IDialogConstants.OK_ID) { currentPassword = currentPasswordText.getText(); newPassword = newPasswordText.getText(); } else { currentPassword = null; newPassword = null; } super.buttonPressed(buttonId); } /** * {@inheritDoc} */ @Override protected Control createDialogArea(Composite parent) { // Composite Composite composite = new Composite(parent, SWT.NONE); GridLayout layout = new GridLayout(); layout.marginHeight = convertVerticalDLUsToPixels(IDialogConstants.VERTICAL_MARGIN); layout.marginWidth = convertHorizontalDLUsToPixels(IDialogConstants.HORIZONTAL_MARGIN); layout.verticalSpacing = convertVerticalDLUsToPixels(IDialogConstants.VERTICAL_SPACING); layout.horizontalSpacing = convertHorizontalDLUsToPixels(IDialogConstants.HORIZONTAL_SPACING); composite.setLayout(layout); GridData compositeGridData = new GridData(SWT.FILL, SWT.FILL, true, true); compositeGridData.widthHint = convertHorizontalDLUsToPixels(IDialogConstants.MINIMUM_MESSAGE_AREA_WIDTH); composite.setLayoutData(compositeGridData); // Message if (message != null) { Label messageLabel = BaseWidgetUtils.createWrappedLabel(composite, message, 1); GridData messageLabelGridData = new GridData(SWT.FILL, SWT.CENTER, true, true, 2, 1); messageLabelGridData.widthHint = convertHorizontalDLUsToPixels( IDialogConstants.MINIMUM_MESSAGE_AREA_WIDTH); messageLabel.setLayoutData(messageLabelGridData); } // Current Password Group Group currentPasswordGroup = BaseWidgetUtils.createGroup(composite, Messages.getString("ResetPasswordDialog.CurrentPassword"), 1); //$NON-NLS-1$ currentPasswordGroup.setLayout(new GridLayout(2, false)); // Current Password Text BaseWidgetUtils.createLabel(currentPasswordGroup, Messages.getString("ResetPasswordDialog.CurrentPasswordColon"), 1); //$NON-NLS-1$ currentPasswordText = BaseWidgetUtils.createText(currentPasswordGroup, StringUtils.EMPTY, 1); //$NON-NLS-1$ currentPasswordText.setEchoChar('\u2022'); currentPasswordText.addModifyListener(event -> validate()); // Show Current Password Checkbox BaseWidgetUtils.createLabel(currentPasswordGroup, StringUtils.EMPTY, 1); //$NON-NLS-1$ showCurrentPasswordCheckbox = BaseWidgetUtils.createCheckbox(currentPasswordGroup, Messages.getString("ResetPasswordDialog.ShowPassword"), 1); //$NON-NLS-1$ showCurrentPasswordCheckbox.addSelectionListener(new SelectionAdapter() { /** * {@inheritDoc} */ @Override public void widgetSelected(SelectionEvent event) { if (showCurrentPasswordCheckbox.getSelection()) { currentPasswordText.setEchoChar('\0'); } else { currentPasswordText.setEchoChar('\u2022'); } } }); // New Password Group Group newPasswordGroup = BaseWidgetUtils.createGroup(composite, Messages.getString("ResetPasswordDialog.NewPassword"), 1); //$NON-NLS-1$ newPasswordGroup.setLayout(new GridLayout(2, false)); // New Password Text BaseWidgetUtils.createLabel(newPasswordGroup, Messages.getString("ResetPasswordDialog.NewPasswordColon"), //$NON-NLS-1$ 1); newPasswordText = BaseWidgetUtils.createText(newPasswordGroup, StringUtils.EMPTY, 1); //$NON-NLS-1$ newPasswordText.setEchoChar('\u2022'); newPasswordText.addModifyListener(event -> validate()); // Show New Password Checkbox BaseWidgetUtils.createLabel(newPasswordGroup, StringUtils.EMPTY, 1); //$NON-NLS-1$ showNewPasswordCheckbox = BaseWidgetUtils.createCheckbox(newPasswordGroup, Messages.getString("ResetPasswordDialog.ShowPassword"), 1); //$NON-NLS-1$ showNewPasswordCheckbox.addSelectionListener(new SelectionAdapter() { /** * {@inheritDoc} */ @Override public void widgetSelected(SelectionEvent event) { if (showNewPasswordCheckbox.getSelection()) { newPasswordText.setEchoChar('\0'); } else { newPasswordText.setEchoChar('\u2022'); } } }); // Verify Text BaseWidgetUtils.createLabel(newPasswordGroup, Messages.getString("ResetPasswordDialog.VerifyNewPasswordColon"), 1); //$NON-NLS-1$ verifyNewPasswordText = BaseWidgetUtils.createText(newPasswordGroup, StringUtils.EMPTY, 1); //$NON-NLS-1$ verifyNewPasswordText.setEchoChar('\u2022'); verifyNewPasswordText.addModifyListener(event -> validate()); // Show Verify New Password Checkbox BaseWidgetUtils.createLabel(newPasswordGroup, StringUtils.EMPTY, 1); //$NON-NLS-1$ showVerifyNewPasswordCheckbox = BaseWidgetUtils.createCheckbox(newPasswordGroup, Messages.getString("ResetPasswordDialog.ShowPassword"), 1); //$NON-NLS-1$ showVerifyNewPasswordCheckbox.addSelectionListener(new SelectionAdapter() { /** * {@inheritDoc} */ @Override public void widgetSelected(SelectionEvent event) { if (showVerifyNewPasswordCheckbox.getSelection()) { verifyNewPasswordText.setEchoChar('\0'); } else { verifyNewPasswordText.setEchoChar('\u2022'); } } }); // Setting focus currentPasswordGroup.setFocus(); applyDialogFont(composite); return composite; } /** * Returns current password. * * @return the current password */ public String getCurrentPassword() { return currentPassword; } /** * Returns new password. * * @return the new password */ public String getNewPassword() { return newPassword; } /** * Validates the input. */ private void validate() { String currentPwd = currentPasswordText.getText(); String newPwd = newPasswordText.getText(); String verifyNewPwd = verifyNewPasswordText.getText(); okButton.setEnabled(!Strings.isEmpty(currentPwd) && !Strings.isEmpty(newPwd) && newPwd.equals(verifyNewPwd) && !currentPwd.equals(newPwd)); //$NON-NLS-1$ //$NON-NLS-2$ } }