@Override
public void actionPerformed(ActionEvent evt) {
final Application app = getApplication();
if (app.isEnabled()) {
app.setEnabled(false);
// Search for an empty view
View emptyView = app.getActiveView();
if (emptyView == null || !emptyView.isEmpty() || !emptyView.isEnabled()) {
emptyView = null;
}
final View p;
if (emptyView == null) {
p = app.createView();
app.add(p);
app.show(p);
} else {
p = emptyView;
}
openView(p);
}
}
protected void openView(final View view) {
final Application app = getApplication();
app.setEnabled(true);
// If there is another view with the same URI we set the multiple open
// id of our view to max(multiple open id) + 1.
int multipleOpenId = 1;
for (View aView : app.views()) {
if (aView != view && aView.isEmpty()) {
multipleOpenId = Math.max(multipleOpenId, aView.getMultipleOpenId() + 1);
}
}
view.setMultipleOpenId(multipleOpenId);
view.setEnabled(false);
// Open the file
view.execute(
new Worker() {
@Override
protected Object construct() throws IOException {
boolean exists = true;
try {
File f = new File(uri);
exists = f.exists();
} catch (IllegalArgumentException e) {
// The URI does not denote a file, thus we can not check whether the file exists.
}
if (exists) {
view.read(uri, null);
return null;
} else {
ResourceBundleUtil labels = ResourceBundleUtil.getBundle("org.jhotdraw.app.Labels");
throw new IOException(
labels.getFormatted("file.open.fileDoesNotExist.message", URIUtil.getName(uri)));
}
}
@Override
protected void done(Object value) {
view.setURI(uri);
Frame w = (Frame) SwingUtilities.getWindowAncestor(view.getComponent());
if (w != null) {
w.setExtendedState(w.getExtendedState() & ~Frame.ICONIFIED);
w.toFront();
}
view.setEnabled(true);
view.getComponent().requestFocus();
}
@Override
protected void failed(Throwable value) {
value.printStackTrace();
String message = value.getMessage() != null ? value.getMessage() : value.toString();
ResourceBundleUtil labels = ResourceBundleUtil.getBundle("org.jhotdraw.app.Labels");
JSheet.showMessageSheet(
view.getComponent(),
"<html>"
+ UIManager.getString("OptionPane.css")
+ "<b>"
+ labels.getFormatted("file.open.couldntOpen.message", URIUtil.getName(uri))
+ "</b><p>"
+ (message == null ? "" : message),
JOptionPane.ERROR_MESSAGE,
new SheetListener() {
@Override
public void optionSelected(SheetEvent evt) {
view.setEnabled(true);
}
});
}
});
}