| /******************************************************************************* |
| * Copyright (C) 2013 The University of Manchester |
| * |
| * Modifications to the initial code base are copyright of their |
| * respective authors, or their employers as appropriate. |
| * |
| * This program 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 program 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 program; if not, write to the Free Software |
| * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 |
| ******************************************************************************/ |
| package net.sf.taverna.t2.workbench.file.importworkflow.actions; |
| |
| import java.awt.Component; |
| import java.awt.event.ActionEvent; |
| import java.io.File; |
| import java.util.Arrays; |
| import java.util.List; |
| import java.util.prefs.Preferences; |
| |
| import javax.swing.AbstractAction; |
| import javax.swing.JFileChooser; |
| import javax.swing.JOptionPane; |
| import javax.swing.filechooser.FileFilter; |
| |
| import net.sf.taverna.t2.workbench.file.FileManager; |
| import net.sf.taverna.t2.workbench.icons.WorkbenchIcons; |
| |
| import org.apache.log4j.Logger; |
| |
| /** |
| * @author David Withers |
| */ |
| @SuppressWarnings("serial") |
| public abstract class OpenSourceWorkflowAction extends AbstractAction { |
| |
| private static Logger logger = Logger.getLogger(OpenSourceWorkflowAction.class); |
| |
| private static final String OPEN_WORKFLOW = "Open workflow..."; |
| |
| protected FileManager fileManager; |
| |
| public OpenSourceWorkflowAction(FileManager fileManager) { |
| super(OPEN_WORKFLOW, WorkbenchIcons.openIcon); |
| this.fileManager = fileManager; |
| } |
| |
| public void actionPerformed(ActionEvent e) { |
| final Component parentComponent; |
| if (e.getSource() instanceof Component) { |
| parentComponent = (Component) e.getSource(); |
| } else { |
| parentComponent = null; |
| } |
| openWorkflows(parentComponent); |
| } |
| |
| public abstract void openWorkflows(Component parentComponent, File[] files); |
| |
| /** |
| * Pop up an Open-dialogue to select one or more workflow files to open. |
| * |
| * @param parentComponent |
| * The UI parent component to use for pop up dialogues |
| * @param openCallback |
| * An {@link OpenCallback} to be called during the file opening. |
| * The callback will be invoked for each file that has been |
| * opened, as file opening happens in a separate thread that |
| * might execute after the return of this method. |
| * @return <code>false</code> if no files were selected or the dialogue was |
| * cancelled, or <code>true</code> if the process of opening one or |
| * more files has been started. |
| */ |
| public boolean openWorkflows(final Component parentComponent) { |
| JFileChooser fileChooser = new JFileChooser(); |
| Preferences prefs = Preferences.userNodeForPackage(getClass()); |
| String curDir = prefs.get("currentDir", System.getProperty("user.home")); |
| fileChooser.setDialogTitle(OPEN_WORKFLOW); |
| |
| fileChooser.resetChoosableFileFilters(); |
| fileChooser.setAcceptAllFileFilterUsed(false); |
| List<FileFilter> fileFilters = fileManager.getOpenFileFilters(); |
| if (fileFilters.isEmpty()) { |
| logger.warn("No file types found for opening workflow"); |
| JOptionPane |
| .showMessageDialog(parentComponent, |
| "No file types found for opening workflow.", "Error", |
| JOptionPane.ERROR_MESSAGE); |
| return false; |
| } |
| for (FileFilter fileFilter : fileFilters) { |
| fileChooser.addChoosableFileFilter(fileFilter); |
| } |
| |
| fileChooser.setFileFilter(fileFilters.get(0)); |
| |
| fileChooser.setCurrentDirectory(new File(curDir)); |
| fileChooser.setMultiSelectionEnabled(true); |
| |
| int returnVal = fileChooser.showOpenDialog(parentComponent); |
| if (returnVal == JFileChooser.APPROVE_OPTION) { |
| prefs.put("currentDir", fileChooser.getCurrentDirectory().toString()); |
| final File[] selectedFiles = fileChooser.getSelectedFiles(); |
| if (selectedFiles.length == 0) { |
| logger.warn("No files selected"); |
| return false; |
| } |
| new FileOpenerThread(parentComponent, selectedFiles).start(); |
| return true; |
| } |
| return false; |
| } |
| |
| private final class FileOpenerThread extends Thread { |
| private final File[] files; |
| private final Component parentComponent; |
| |
| private FileOpenerThread(Component parentComponent, File[] selectedFiles) { |
| super("Opening workflows(s) " + Arrays.asList(selectedFiles)); |
| this.parentComponent = parentComponent; |
| this.files = selectedFiles; |
| } |
| |
| @Override |
| public void run() { |
| openWorkflows(parentComponent, files); |
| } |
| } |
| |
| } |