Presenting a modal dialog box using an invisible panel underneath

A non-transitory computer readable storage medium including instructions that, when executed by a processing device, cause the processing device to execute operations comprising:

• displaying, by the processing device, a panel superimposed on a graphical user interface (GUI) virtualization system management page;
• displaying on top of the panel a dialog box comprising an input user interface element;
• receiving, by an event handler of the panel, an event associated with a user interaction with the panel outside of the dialog box;
• generating, by the processing device, an alert in response to the user interaction indicating that the user interaction is invalid, wherein the alert is in a visual form;
• and
• preventing an event handler of the GUI virtualization system management page from receiving the event.

A system, comprising:

• a display device;
• a processing device coupled to the display device;
• and
• a memory coupled to the processing device to store computer instructions, which when executed from the memory, cause the processing device to:
• display a panel superimposed on a graphical user interface (GUI) virtualization system management page,
• display on top of the panel a dialog box comprising an input user interface element,
• receive, by an event handler of the panel, an event associated with a user interaction with the panel outside of the dialog box;
• generate an alert in response to the user interaction indicating that the user interaction is invalid, wherein the alert is in a visual form;
• and
• prevent an event handler of the GUI virtualization system management page from receiving the event.