/** * @param parent parent component which is used to calculate heavy weight window ancestor. <code> * parent</code> cannot be <code>null</code> and must be showing. */ protected DialogWrapperPeerImpl( @NotNull DialogWrapper wrapper, @NotNull Component parent, boolean canBeParent) { myWrapper = wrapper; if (!parent.isShowing() && parent != JOptionPane.getRootFrame()) { throw new IllegalArgumentException("parent must be showing: " + parent); } myWindowManager = null; Application application = ApplicationManager.getApplication(); if (application != null && application.hasComponent(WindowManager.class)) { myWindowManager = (WindowManagerEx) WindowManager.getInstance(); } Window owner = parent instanceof Window ? (Window) parent : (Window) SwingUtilities.getAncestorOfClass(Window.class, parent); if (!(owner instanceof Dialog) && !(owner instanceof Frame)) { owner = JOptionPane.getRootFrame(); } createDialog(owner, canBeParent); }