| 1 | // License: GPL. For details, see LICENSE file.
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| 2 | package org.openstreetmap.josm.actions;
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| 3 |
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| 4 | import static org.openstreetmap.josm.gui.help.HelpUtil.ht;
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| 5 | import static org.openstreetmap.josm.tools.I18n.tr;
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| 6 |
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| 7 | import java.awt.event.ActionEvent;
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| 8 | import java.io.File;
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| 9 | import java.io.IOException;
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| 10 | import java.util.List;
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| 11 |
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| 12 | import javax.swing.JFileChooser;
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| 13 | import javax.swing.JOptionPane;
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| 14 | import javax.swing.SwingUtilities;
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| 15 | import javax.swing.filechooser.FileFilter;
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| 16 |
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| 17 | import org.openstreetmap.josm.Main;
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| 18 | import org.openstreetmap.josm.gui.HelpAwareOptionPane;
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| 19 | import org.openstreetmap.josm.gui.PleaseWaitRunnable;
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| 20 | import org.openstreetmap.josm.gui.layer.Layer;
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| 21 | import org.openstreetmap.josm.gui.progress.ProgressMonitor;
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| 22 | import org.openstreetmap.josm.io.IllegalDataException;
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| 23 | import org.openstreetmap.josm.io.session.SessionReader;
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| 24 |
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| 25 | public class SessionLoadAction extends JosmAction {
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| 26 | public SessionLoadAction() {
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| 27 | super(tr("Load Session"), "open", tr("Load a session from file."), null, true, "load-session", true);
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| 28 | putValue("help", ht("/Action/SessionLoad"));
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| 29 | }
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| 30 |
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| 31 | public void actionPerformed(ActionEvent e) {
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| 32 | String curDir = Main.pref.get("lastDirectory");
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| 33 | if (curDir.equals("")) {
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| 34 | curDir = ".";
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| 35 | }
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| 36 | JFileChooser fc = new JFileChooser(new File(curDir));
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| 37 | fc.setDialogTitle(tr("Open session"));
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| 38 | fc.setFileSelectionMode(JFileChooser.FILES_ONLY);
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| 39 | fc.setMultiSelectionEnabled(false);
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| 40 | fc.setAcceptAllFileFilterUsed(true);
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| 41 | FileFilter ff = new ExtensionFileFilter("jos,joz", "jos", tr("Session file (*.jos, *.joz)"));
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| 42 | fc.addChoosableFileFilter(ff);
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| 43 | int answer = fc.showOpenDialog(Main.parent);
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| 44 | if (answer != JFileChooser.APPROVE_OPTION)
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| 45 | return;
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| 46 |
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| 47 | if (!fc.getCurrentDirectory().getAbsolutePath().equals(curDir)) {
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| 48 | Main.pref.put("lastDirectory", fc.getCurrentDirectory().getAbsolutePath());
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| 49 | }
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| 50 | File file = fc.getSelectedFile();
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| 51 | boolean zip = true;
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| 52 | if (file.getName().toLowerCase().endsWith(".jos")) {
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| 53 | zip = false;
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| 54 | }
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| 55 | Main.worker.submit(new Loader(file, zip));
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| 56 | }
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| 57 |
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| 58 | public static class Loader extends PleaseWaitRunnable {
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| 59 |
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| 60 | private boolean canceled;
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| 61 | private File file;
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| 62 | private boolean zip;
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| 63 | private List<Layer> layers;
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| 64 | private List<Runnable> postLoadTasks;
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| 65 |
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| 66 | public Loader(File file, boolean zip) {
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| 67 | super(tr("Loading session ''{0}''", file.getName()));
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| 68 | this.file = file;
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| 69 | this.zip = zip;
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| 70 | }
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| 71 |
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| 72 | @Override
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| 73 | protected void cancel() {
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| 74 | Thread.currentThread().dumpStack();
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| 75 | canceled = true;
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| 76 | }
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| 77 |
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| 78 | @Override
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| 79 | protected void finish() {
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| 80 | SwingUtilities.invokeLater(new Runnable() {
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| 81 | @Override
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| 82 | public void run() {
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| 83 | if (canceled) return;
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| 84 | for (Layer l : layers) {
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| 85 | if (canceled) return;
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| 86 | Main.main.addLayer(l);
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| 87 | }
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| 88 | for (Runnable task : postLoadTasks) {
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| 89 | if (canceled) return;
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| 90 | if (task == null) {
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| 91 | continue;
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| 92 | }
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| 93 | task.run();
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| 94 | }
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| 95 | }
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| 96 | });
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| 97 | }
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| 98 |
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| 99 | @Override
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| 100 | protected void realRun() {
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| 101 | try {
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| 102 | ProgressMonitor monitor = getProgressMonitor();
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| 103 | SessionReader reader = new SessionReader();
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| 104 | reader.loadSession(file, zip, monitor);
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| 105 | layers = reader.getLayers();
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| 106 | postLoadTasks = reader.getPostLoadTasks();
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| 107 | } catch (IllegalDataException e) {
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| 108 | e.printStackTrace();
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| 109 | HelpAwareOptionPane.showMessageDialogInEDT(
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| 110 | Main.parent,
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| 111 | tr("<html>Could not load session file ''{0}''.<br>Error is:<br>{1}</html>", file.getName(), e.getMessage()),
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| 112 | tr("Data Error"),
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| 113 | JOptionPane.ERROR_MESSAGE,
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| 114 | null
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| 115 | );
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| 116 | cancel();
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| 117 | } catch (IOException e) {
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| 118 | e.printStackTrace();
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| 119 | HelpAwareOptionPane.showMessageDialogInEDT(
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| 120 | Main.parent,
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| 121 | tr("<html>Could not load session file ''{0}''.<br>Error is:<br>{1}</html>", file.getName(), e.getMessage()),
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| 122 | tr("IO Error"),
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| 123 | JOptionPane.ERROR_MESSAGE,
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| 124 | null
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| 125 | );
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| 126 | cancel();
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| 127 | } catch (RuntimeException e) {
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| 128 | cancel();
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| 129 | throw e;
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| 130 | } catch (Error e) {
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| 131 | cancel();
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| 132 | throw e;
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| 133 | }
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| 134 | }
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| 135 | }
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| 136 | }
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| 137 |
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