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popupshowing

The popupshowing event is executed when a <menupopup>, <panel> or <tooltip> is about to become visible. The default action of the event can be prevented to prevent the popup to appear.

General info

Specification
XUL
Interface
PopupEvent
Bubbles
Yes
Cancelable
Yes
Target
element
Default Action
A popup is displayed

Properties

Property Type Description
target Read only EventTarget The event target (the topmost target in the DOM tree).
type Read only DOMString The type of event.
bubbles Read only boolean Does the event normally bubble?
cancelable Read only boolean Is it possible to cancel the event?

Document Tags and Contributors

 Contributors to this page: teoli, Sheppy, ethertank, louisremi
 Last updated by: teoli,