public void exit() { if (Ctx.project.getProjectDir() != null && (Ctx.project.getWorld().isModified() || Ctx.project.getSelectedChapter().isModified())) { new Dialog("Save Project", skin) { protected void result(Object object) { if (((Boolean) object).booleanValue()) { try { Ctx.project.saveProject(); } catch (TransformerException | IOException e1) { String msg = "Something went wrong while saving the actor.\n\n" + e1.getClass().getSimpleName() + " - " + e1.getMessage(); Ctx.msg.show(getStage(), msg, 4); e1.printStackTrace(); } } ((Main) Gdx.app).exitSaved(); } }.text("Save changes to project?") .button("Yes", true) .button("No", false) .key(Keys.ENTER, true) .key(Keys.ESCAPE, false) .show(stage); } else { ((Main) Gdx.app).exitSaved(); } }