Java tutorial
/******************************************************************************* * Copyright (c) 2013 Todd Schiller. * 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.eclipse.org/legal/epl-v10.html * * Contributors: * Todd Schiller - initial API, implementation, and documentation ******************************************************************************/ package edu.washington.cs.cupid.usage.internal; import java.io.InputStream; import java.io.InputStreamReader; import java.net.URL; import java.nio.charset.Charset; import org.eclipse.jface.dialogs.IDialogConstants; import org.eclipse.jface.dialogs.IMessageProvider; import org.eclipse.jface.dialogs.TitleAreaDialog; import org.eclipse.swt.SWT; import org.eclipse.swt.browser.Browser; 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.osgi.framework.Bundle; import com.google.common.io.CharStreams; /** * Dialog to prompt user to report usage data. * @author Todd Schiller */ public final class DataCollectorDialog extends TitleAreaDialog { private static final String CONSENT_AGREEMENT_PATH = "/documents/consent-agreement.html"; //$NON-NLS-1$ /** * Construct dialog to prompt user to report usage data. * @param parentShell the parent SWT shell */ public DataCollectorDialog(final Shell parentShell) { super(parentShell); } @Override public void create() { super.create(); setTitle("Enable Cupid Usage Data Collection?"); setMessage("Help improve Cupid by automatically reporting Cupid usage information", IMessageProvider.INFORMATION); } @Override protected void createButtonsForButtonBar(final Composite parent) { GridData gridData = new GridData(SWT.CENTER, SWT.FILL, true, true); parent.setLayoutData(gridData); createButton(parent, IDialogConstants.OK_ID, "Enable Data Collection", true); createButton(parent, IDialogConstants.CANCEL_ID, "Do Not Collect Data", false); } @Override protected Control createDialogArea(final Composite parent) { GridLayout layout = new GridLayout(); layout.numColumns = 1; parent.setLayout(layout); Label text = new Label(parent, SWT.LEFT | SWT.WRAP); text.setText("You can review collected data and disable reporting on the Cupid preferences page."); GridData data = new GridData(SWT.FILL, SWT.FILL, true, true); data.heightHint = 30; text.setLayoutData(data); Browser consentText = new Browser(parent, SWT.BORDER); try { Bundle bundle = Activator.getDefault().getBundle(); URL fileURL = bundle.getEntry(CONSENT_AGREEMENT_PATH); if (fileURL == null) { throw new RuntimeException("Unable to locate consent agreement at " + CONSENT_AGREEMENT_PATH); } InputStream inputStream = fileURL.openStream(); String content = CharStreams.toString(new InputStreamReader(inputStream, Charset.forName("UTF-8"))); consentText.setText(content); } catch (Exception ex) { Activator.getDefault().logError("Error loading consent form: " + ex.getLocalizedMessage(), ex); consentText.setText("Error loading consent form: " + ex.getLocalizedMessage()); } data = new GridData(SWT.FILL, SWT.FILL, true, true); data.heightHint = 250; data.widthHint = 400; consentText.setLayoutData(data); return parent; } }