/** Handler for Sketch → Export Application */
  public void handleExportApplication() {
    toolbar.activate(JavaToolbar.EXPORT);

    if (handleExportCheckModified()) {
      statusNotice("Exporting application...");
      try {
        if (exportApplicationPrompt()) {
          Base.openFolder(sketch.getFolder());
          statusNotice("Done exporting.");
        } else {
          // error message will already be visible
          // or there was no error, in which case it was canceled.
        }
      } catch (Exception e) {
        statusNotice("Error during export.");
        e.printStackTrace();
      }
    }
    toolbar.deactivate(JavaToolbar.EXPORT);
  }