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? |