PDF-AS signature working with local BKU

git-svn-id: https://joinup.ec.europa.eu/svn/pdf-over/trunk@26 174cde9d-5d70-4d2a-aa98-46368bc2aaf7

1 files changed, 221 insertions, 0 deletions

diff --git a/pdf-over-gui/src/main/java/at/asit/pdfover/gui/composites/OutputComposite.java b/pdf-over-gui/src/main/java/at/asit/pdfover/gui/composites/OutputComposite.java
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+/*
+ * Copyright 2012 by A-SIT, Secure Information Technology Center Austria
+ *
+ * Licensed under the EUPL, Version 1.1 or - as soon they will be approved by
+ * the European Commission - subsequent versions of the EUPL (the "Licence");
+ * You may not use this work except in compliance with the Licence.
+ * You may obtain a copy of the Licence at:
+ * http://joinup.ec.europa.eu/software/page/eupl
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the Licence is distributed on an "AS IS" basis,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the Licence for the specific language governing permissions and
+ * limitations under the Licence.
+ */
+package at.asit.pdfover.gui.composites;
+
+// Imports
+import java.awt.Desktop;
+import org.eclipse.swt.widgets.FileDialog;
+import java.io.File;
+import java.io.FileOutputStream;
+
+import org.eclipse.swt.SWT;
+import org.eclipse.swt.events.SelectionEvent;
+import org.eclipse.swt.events.SelectionListener;
+import org.eclipse.swt.layout.FormAttachment;
+import org.eclipse.swt.layout.FormData;
+import org.eclipse.swt.layout.FormLayout;
+import org.eclipse.swt.widgets.Button;
+import org.eclipse.swt.widgets.Composite;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+import at.asit.pdfover.gui.workflow.states.State;
+import at.asit.pdfover.signator.DocumentSource;
+
+/**
+ * GUI component for Output State
+ */
+public class OutputComposite extends StateComposite {
+	
+	/**
+	 * Selection Listner for save button
+	 */
+	private final class SaveSelectionListener implements SelectionListener {
+		
+		/**
+		 * Default constructor 
+		 */
+		public SaveSelectionListener() {
+			// Nothing to do
+		}
+
+		@Override
+		public void widgetSelected(SelectionEvent e) {
+			try {
+				FileDialog save = new FileDialog(OutputComposite.this.getShell(), SWT.SAVE | SWT.NATIVE);
+				save.setFilterExtensions(new String[] {"*.pdf"});
+				save.setFilterNames(new String[] {"PDF Dateien"});
+				
+				String target = save.open();
+				
+				File targetFile = new File(target);
+				
+				DocumentSource source = OutputComposite.this
+						.getSignedDocument();
+				
+				FileOutputStream outstream = new FileOutputStream(targetFile);
+				outstream.write(source.getByteArray(), 0,
+						source.getByteArray().length);
+				outstream.close();
+				
+				OutputComposite.this.savedFile = targetFile;
+				
+			} catch (Exception ex) {
+				log.error("SaveSelectionListener: ", ex); //$NON-NLS-1$
+			}
+		}
+
+		@Override
+		public void widgetDefaultSelected(SelectionEvent e) {
+			// Nothing todo
+		}
+	}
+
+	/**
+	 * Selection Listner for open button
+	 */
+	private final class OpenSelectionListener implements SelectionListener {
+		
+		/**
+		 * Default constructor
+		 */
+		public OpenSelectionListener() {
+			// Nothing to do
+		}
+
+		@Override
+		public void widgetSelected(SelectionEvent e) {
+			try {
+				DocumentSource source = OutputComposite.this
+						.getSignedDocument();
+
+				if (source != null) {
+					File open = OutputComposite.this.savedFile;
+					if (open == null) {
+						// Save as temp file ...
+						open = new File("tmp_signed.pdf");
+						FileOutputStream outstream = new FileOutputStream(open);
+						outstream.write(source.getByteArray(), 0,
+								source.getByteArray().length);
+						outstream.close();
+					}
+
+					if (open.exists()) {
+						// Desktop supported check allready done in constructor
+						Desktop.getDesktop().open(open);
+						return;
+					}
+				} else {
+					// TODO: Handle exception ...
+				}
+			} catch (Exception ex) {
+				log.error("OpenSelectionListener: ", ex); //$NON-NLS-1$
+			}
+		}
+
+		@Override
+		public void widgetDefaultSelected(SelectionEvent e) {
+			// Nothing todo
+		}
+	}
+
+	/**
+	 * SLF4J Logger instance
+	 **/
+	private static final Logger log = LoggerFactory
+			.getLogger(OutputComposite.class);
+
+	File savedFile = null;
+
+	private DocumentSource signedDocument;
+
+	/**
+	 * Create the composite.
+	 * 
+	 * @param parent
+	 *            The parent composite
+	 * @param style
+	 *            The swt style
+	 * @param state
+	 *            The owning state
+	 */
+	public OutputComposite(Composite parent, int style, State state) {
+		super(parent, style, state);
+
+		this.setLayout(new FormLayout());
+
+		Button btn_open = new Button(this, SWT.NATIVE | SWT.RESIZE);
+		btn_open.setText("OPEN");
+		// Point mobile_size = btn_mobile.computeSize(SWT.DEFAULT, SWT.DEFAULT);
+		FormData fd_btn_open = new FormData();
+		fd_btn_open.left = new FormAttachment(40, 0);
+		fd_btn_open.right = new FormAttachment(50, 0);
+		fd_btn_open.top = new FormAttachment(45, 0);
+		fd_btn_open.bottom = new FormAttachment(55, 0);
+		btn_open.setLayoutData(fd_btn_open);
+		btn_open.addSelectionListener(new OpenSelectionListener());
+
+		if (!Desktop.isDesktopSupported()) {
+			btn_open.setEnabled(false);
+		}
+
+		Button btn_save = new Button(this, SWT.NATIVE | SWT.RESIZE);
+		btn_save.setText("SAVE");
+		// Point card_size = btn_card.computeSize(SWT.DEFAULT, SWT.DEFAULT);
+		FormData fd_btn_save = new FormData();
+		fd_btn_save.left = new FormAttachment(50, 0);
+		fd_btn_save.right = new FormAttachment(60, 0);
+		fd_btn_save.top = new FormAttachment(45, 0);
+		fd_btn_save.bottom = new FormAttachment(55, 0);
+		btn_save.setLayoutData(fd_btn_save);
+		btn_save.addSelectionListener(new SaveSelectionListener());
+
+		this.pack();
+	}
+
+	/**
+	 * Gets the signed document
+	 * @return the signed document
+	 */
+	public DocumentSource getSignedDocument() {
+		return this.signedDocument;
+	}
+
+	/**
+	 * Sets the signed document
+	 * @param signedDocument the signed document
+	 */
+	public void setSignedDocument(final DocumentSource signedDocument) {
+		this.signedDocument = signedDocument;
+	}
+
+	@Override
+	protected void checkSubclass() {
+		// Disable the check that prevents subclassing of SWT components
+	}
+
+	/*
+	 * (non-Javadoc)
+	 * 
+	 * @see at.asit.pdfover.gui.composites.StateComposite#doLayout()
+	 */
+	@Override
+	public void doLayout() {
+		// TODO Auto-generated method stub
+
+	}
+
+}