Multiple top level user interface displays

摘要

When a program invokes a synchronous user interface display, it is determined whether an asynchronous user interface (UI) display needs to be generated. If so, the user interface thread invoked by the synchronous program is blocked and the asynchronous UI display is generated and displayed so that it covers the synchronous display on the UI display screen. When the processing corresponding to the synchronous user interface display is complete, processing returns to the synchronous user interface display and the user interface thread invoked by the synchronous program is unblocked.

主权项

1. A computer-implemented method of processing a synchronous user interface thread by a synchronous program, comprising:
detecting that the synchronous program is invoking a synchronous user interface display; detecting that an asynchronous user interface is to be displayed; blocking the synchronous user interface thread, using a synchronous user interface thread handling component, based on the asynchronous user interface thread; displaying the asynchronous user interface display over the synchronous user interface display while blocking the synchronous user interface thread; detecting completion of processing, by the synchronous program, corresponding to the synchronous user interface display; based on detecting completion of processing corresponding to the synchronous user interface display, removing display of the asynchronous user interface display; and unblocking the synchronous user interface thread.