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 java.util.List; import org.apache.directory.api.ldap.model.exception.LdapURLEncodingException; import org.apache.directory.api.ldap.model.url.LdapUrl; import org.apache.directory.studio.common.ui.widgets.BaseWidgetUtils; import org.apache.directory.studio.connection.core.Connection; import org.apache.directory.studio.connection.core.ConnectionCorePlugin; import org.apache.directory.studio.connection.core.Utils; import org.apache.directory.studio.connection.ui.widgets.ConnectionActionGroup; import org.apache.directory.studio.connection.ui.widgets.ConnectionConfiguration; import org.apache.directory.studio.connection.ui.widgets.ConnectionUniversalListener; import org.apache.directory.studio.connection.ui.widgets.ConnectionWidget; import org.eclipse.jface.dialogs.Dialog; import org.eclipse.jface.dialogs.IDialogConstants; import org.eclipse.jface.viewers.IStructuredSelection; import org.eclipse.jface.viewers.StructuredSelection; import org.eclipse.swt.SWT; 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.Shell; /** * Dialog to select the connection of a referral. * * @author <a href="mailto:dev@directory.apache.org">Apache Directory Project</a> */ public class SelectReferralConnectionDialog extends Dialog { /** The dialog title */ private String title; /** The list of available referrals */ private List<String> referralUrls; /** The selected connection */ private Connection selectedConnection; /** The connection configuration */ private ConnectionConfiguration configuration; /** The connection listener */ private ConnectionUniversalListener universalListener; /** The connection action group */ private ConnectionActionGroup actionGroup; /** The connection widget */ private ConnectionWidget mainWidget; /** * Creates a new instance of SelectReferralConnectionDialog. * * @param parentShell the parent shell * @param referralUrl the referral URL */ public SelectReferralConnectionDialog(Shell parentShell, List<String> referralUrls) { super(parentShell); super.setShellStyle(super.getShellStyle() | SWT.RESIZE); this.title = Messages.getString("SelectReferralConnectionDialog.SelectReferralConenction"); //$NON-NLS-1$ this.referralUrls = referralUrls; this.selectedConnection = null; } /** * {@inheritDoc} */ @Override protected void configureShell(Shell shell) { super.configureShell(shell); shell.setText(title); } /** * {@inheritDoc} */ @Override public boolean close() { if (mainWidget != null) { configuration.dispose(); configuration = null; actionGroup.deactivateGlobalActionHandlers(); actionGroup.dispose(); actionGroup = null; universalListener.dispose(); universalListener = null; mainWidget.dispose(); mainWidget = null; } return super.close(); } /** * {@inheritDoc} */ @Override protected void cancelPressed() { selectedConnection = null; super.cancelPressed(); } /** * {@inheritDoc} */ @Override protected void createButtonsForButtonBar(Composite parent) { Button okButton = createButton(parent, IDialogConstants.OK_ID, IDialogConstants.OK_LABEL, true); okButton.setFocus(); createButton(parent, IDialogConstants.CANCEL_ID, IDialogConstants.CANCEL_LABEL, false); validate(); } private void validate() { if (getButton(IDialogConstants.OK_ID) != null) { getButton(IDialogConstants.OK_ID).setEnabled(selectedConnection != null); } } /** * {@inheritDoc} */ @Override protected Control createDialogArea(Composite parent) { Composite composite = (Composite) super.createDialogArea(parent); GridLayout gridLayout = new GridLayout(); composite.setLayout(gridLayout); GridData gridData = new GridData(GridData.FILL_BOTH); gridData.widthHint = convertHorizontalDLUsToPixels(IDialogConstants.MINIMUM_MESSAGE_AREA_WIDTH); gridData.heightHint = convertHorizontalDLUsToPixels(IDialogConstants.MINIMUM_MESSAGE_AREA_WIDTH / 2); composite.setLayoutData(gridData); BaseWidgetUtils.createWrappedLabeledText(composite, Messages.getString("SelectReferralConnectionDialog.SelectConnectionToHandleReferral"), 1); //$NON-NLS-1$ for (String url : referralUrls) { BaseWidgetUtils.createWrappedLabeledText(composite, " - " + url, 1); //$NON-NLS-1$ } // create configuration configuration = new ConnectionConfiguration(); // create main widget mainWidget = new ConnectionWidget(configuration, null); mainWidget.createWidget(composite); mainWidget.setInput(ConnectionCorePlugin.getDefault().getConnectionFolderManager()); // create actions and context menu (and register global actions) actionGroup = new ConnectionActionGroup(mainWidget, configuration); actionGroup.fillToolBar(mainWidget.getToolBarManager()); actionGroup.fillMenu(mainWidget.getMenuManager()); actionGroup.fillContextMenu(mainWidget.getContextMenuManager()); actionGroup.activateGlobalActionHandlers(); // create the listener universalListener = new ConnectionUniversalListener(mainWidget.getViewer()); mainWidget.getViewer().addSelectionChangedListener(event -> { selectedConnection = null; if (!event.getSelection().isEmpty()) { Object object = ((IStructuredSelection) event.getSelection()).getFirstElement(); if (object instanceof Connection) { selectedConnection = (Connection) object; } } validate(); }); mainWidget.getViewer().addDoubleClickListener(event -> { selectedConnection = null; if (!event.getSelection().isEmpty()) { Object object = ((IStructuredSelection) event.getSelection()).getFirstElement(); if (object instanceof Connection) { selectedConnection = (Connection) object; } } validate(); }); if (referralUrls != null) { Connection[] connections = ConnectionCorePlugin.getDefault().getConnectionManager().getConnections(); for (Connection connection : connections) { LdapUrl connectionUrl = connection.getUrl(); String normalizedConnectionUrl = Utils.getSimpleNormalizedUrl(connectionUrl); for (String url : referralUrls) { try { if ((url != null) && Utils.getSimpleNormalizedUrl(new LdapUrl(url)).equals(normalizedConnectionUrl)) { mainWidget.getViewer().reveal(connection); mainWidget.getViewer().setSelection(new StructuredSelection(connection), true); break; } } catch (LdapURLEncodingException e) { // Will never occur } } } } applyDialogFont(composite); validate(); return composite; } /** * Gets the referral connection. * * @return the referral connection */ public Connection getReferralConnection() { return selectedConnection; } }