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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

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