/**
* ===========================================
* Java Pdf Extraction Decoding Access Library
* ===========================================
*
* Project Info: http://www.jpedal.org
* (C) Copyright 1997-2008, IDRsolutions and Contributors.
*
* This file is part of JPedal
*
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*
* ---------------
* MultiViewTransferHandler.java
* ---------------
*/
package org.jpedal.examples.simpleviewer.gui;
import java.awt.datatransfer.Transferable;
import java.io.File;
import java.net.URL;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.Iterator;
import java.util.LinkedList;
import java.util.List;
import javax.swing.JComponent;
import javax.swing.JOptionPane;
import org.jpedal.examples.simpleviewer.Commands;
import org.jpedal.examples.simpleviewer.Values;
import org.jpedal.examples.simpleviewer.gui.generic.GUIThumbnailPanel;
import org.jpedal.utils.Messages;
import org.jpedal.utils.SwingWorker;
public class MultiViewTransferHandler extends BaseTransferHandler {
private int fileCount = 0;
public MultiViewTransferHandler(Values commonValues, GUIThumbnailPanel thumbnails, SwingGUI currentGUI, Commands currentCommands) {
super(commonValues, thumbnails, currentGUI, currentCommands);
}
public boolean importData(JComponent src, Transferable transferable) {
try {
Object dragImport = getImport(transferable);
if (dragImport instanceof String) {
String url = (String) dragImport;
System.out.println(url);
String testURL = url.toLowerCase();
if (testURL.startsWith("http:/")) {
currentCommands.openTransferedFile(testURL);
return true;
} else if (testURL.startsWith("file:/")) {
String[] urls = url.split("file:/");
List files = new LinkedList();
for (String file : urls) {
if (file.length() > 0) {
File file2 = new File(new URL("file:/" + file).getFile());
System.out.println(file2);
files.add(file2);
}
}
return openFiles(files);
}
} else if (dragImport instanceof List) {
List files = (List) dragImport;
return openFiles(files);
}
} catch (Exception e) {
}
return false;
}
private boolean openFiles(List files) {
fileCount = 0;
List flattenedFiles = getFlattenedFiles(files, new ArrayList());
if (fileCount == commonValues.getMaxMiltiViewers()) {
currentGUI.showMessageDialog("You have choosen to import more files than your current set " +
"maximum (" + commonValues.getMaxMiltiViewers() + "). Only the first " +
commonValues.getMaxMiltiViewers() + " files will be imported.\nYou can change this value " +
"in View | Preferences",
"Maximum number of files reached", JOptionPane.INFORMATION_MESSAGE);
}
List[] filterdFiles = filterFiles(flattenedFiles);
final List allowedFiles = filterdFiles[0];
List disAllowedFiles = filterdFiles[1];
int noOfDisAllowedFiles = disAllowedFiles.size();
int noOfAllowedFiles = allowedFiles.size();
if(noOfDisAllowedFiles > 0) {
String unOpenableFiles = "";
for (Object disAllowedFile : disAllowedFiles) {
String file = (String) disAllowedFile;
String fileName = new File(file).getName();
unOpenableFiles += fileName + '\n';
}
int result = currentGUI.showConfirmDialog("You have selected " + flattenedFiles.size() +
" files to open. The following file(s) cannot be opened\nas they are not valid PDFs " +
"or images.\n" + unOpenableFiles + "\nWould you like to open the remaining " +
noOfAllowedFiles + " files?", "File Import", JOptionPane.YES_NO_OPTION, JOptionPane.QUESTION_MESSAGE);
if (result == JOptionPane.NO_OPTION) {
return false;
}
}
final SwingWorker worker = new SwingWorker() {
public Object construct() {
for (Object allowedFile : allowedFiles) {
final String file = (String) allowedFile;
try {
currentCommands.openTransferedFile(file);
} catch (Exception e) {
int result;
if (allowedFiles.size() == 1) {
currentGUI.showMessageDialog(Messages.getMessage("PdfViewerOpenerror"), commonValues.getSelectedFile(), JOptionPane.ERROR_MESSAGE);
result = JOptionPane.NO_OPTION;
} else {
result = currentGUI.showConfirmDialog(Messages.getMessage("PdfViewerOpenerror") + ". Continue opening remaining files?", commonValues.getSelectedFile(),
JOptionPane.YES_NO_OPTION, JOptionPane.QUESTION_MESSAGE);
}
currentGUI.closeMultiViewerWindow(commonValues.getSelectedFile());
if (result == JOptionPane.NO_OPTION) {
return null;
}
}
}
return null;
}
};
worker.start();
// while (currentCommands.openingTransferedFiles()) {
// Thread.sleep(250);
// }
//
// SwingUtilities.invokeLater(new Runnable() {
// public void run() {
// JInternalFrame[] allFrames = currentGUI.getMultiViewerFrames().getAllFrames();
//
// for (int i = allFrames.length - 1; i >= 0; i--) {
// JInternalFrame pdf = allFrames[i];
//
// pdf.updateUI();
// pdf.repaint();
// try {
// pdf.setSelected(true);
// } catch (PropertyVetoException e) {
// e.printStackTrace();
// }
// }
// currentGUI.getMultiViewerFrames().repaint();
// }
// });
return true;
}
private static List[] filterFiles(List flattenedFiles) {
List allowedFiles = new LinkedList();
List disAllowedFiles = new LinkedList();
for (Object flattenedFile : flattenedFiles) {
String file = ((String) flattenedFile);
String testFile = file.toLowerCase();
boolean isValid = ((testFile.endsWith(".pdf")) || (testFile.endsWith(".fdf")) ||
(testFile.endsWith(".tif")) || (testFile.endsWith(".tiff")) ||
(testFile.endsWith(".png")) || (testFile.endsWith(".jpg")) ||
(testFile.endsWith(".jpeg")));
if (isValid) {
allowedFiles.add(file);
} else {
disAllowedFiles.add(file);
}
}
return new List[] { allowedFiles, disAllowedFiles };
}
private List getFlattenedFiles(List files, List flattenedFiles) {
for (Object file1 : files) {
if (fileCount == commonValues.getMaxMiltiViewers()) {
return flattenedFiles;
}
File file = (File) file1;
// System.out.println(file);
if (file.isDirectory()) {
getFlattenedFiles(Arrays.asList(file.listFiles()), flattenedFiles);
} else {
flattenedFiles.add(file.getAbsolutePath());
fileCount++;
}
}
return flattenedFiles;
}
// protected void openTransferedFile(String file) {
// String testFile = file.toLowerCase();
//
// boolean isValid = ((testFile.endsWith(".pdf"))
// || (testFile.endsWith(".fdf")) || (testFile.endsWith(".tif"))
// || (testFile.endsWith(".tiff")) || (testFile.endsWith(".png"))
// || (testFile.endsWith(".jpg")) || (testFile.endsWith(".jpeg")));
//
// if (isValid) {
// currentCommands.openTransferedFile(file);
// } else {
// currentGUI.showMessageDialog("You may only import a valid PDF or image");
// }
// }
}