/**
* Makes this window as a modal dialog. It will automatically center the window (ignoring {@link
* #getLeft} and {@link #getTop}).
*
* <p>Notice: though both setMode("modal") and doModal() both causes the window to become modal,
* they are a bit different. doModal causes the event listener to suspend immediately, while
* setMode("modal") posts an event ({@link Events#ON_MODAL}). That is, {@link #setMode} won't
* suspend the execution immediately, but {@link #doModal} will. {@link #doModal} can be called
* only in an event listener, while {@link #setMode} can be called anytime.
*
* @exception SuspendNotAllowedException if 1) not in an event listener;<br>
* 2) the event thread is disabled.<br>
* 3) there are too many suspended processing thread than the deployer allows. By default,
* there is no limit of # of suspended threads.
* @exception InterruptedException thrown if the desktop or the Web application is being
* destroyed, or {@link org.zkoss.zk.ui.sys.DesktopCtrl#ceaseSuspendedThread}. To tell the
* difference, check the getMessage method of InterruptedException.
* @since 3.0.4
*/
public void doModal() throws InterruptedException, SuspendNotAllowedException {
if (!isEventThreadEnabled(true)) {
checkOverlappable(_MODAL_);
setNonModalMode(_MODAL_);
return;
}
checkOverlappable(MODAL);
if (_mode != MODAL) {
if (!Events.inEventListener())
throw new SuspendNotAllowedException("doModal must be called in an event listener");
int oldmode = _mode;
boolean oldvisi = isVisible();
setVisible(true); // if MODAL, it must be visible; vice versa
try {
enterModal();
} catch (SuspendNotAllowedException ex) {
handleFailedModal(oldmode, oldvisi);
throw ex;
}
}
}
