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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,