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mozbrowservisibilitychange

Non-standard
This feature is not on a current W3C standards track, but it is supported on the Firefox OS platform. Although implementations may change in the future and it is not supported widely across browsers, it is suitable for use in code dedicated to Firefox OS apps.

The mozbrowservisibilitychange event is fired when the visibility state of the current browser iframe <iframe> changes, for example due to a call to setVisible().

General info

Specification
Non standard
Interface
CustomEvent
Bubbles
Yes
Cancelable
Yes
Target
<iframe>
Default Action
None

Properties

Property Type Description
target Read only EventTarget The browser iframe
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?
details Read only object A custom object

details

The details property returns an anonymous JavaScript object with the following properties:

visible
A Boolean that indicates whether the browser iframe is visible (true) or not (false).

Example

var browser = document.querySelector("iframe");

browser.addEventListener("mozbrowservisibilitychange", function( event ) {
  if(event.details.visible) {
    console.log("The browser is visible.");
  } else {
    console.log("The browser is hidden.");
  }
});

See also

Document Tags and Contributors

 Contributors to this page: wbamberg, chrisdavidmills
 Last updated by: wbamberg,