mozbrowservisibilitychange 编辑

Non-standard
This feature is non-standard and is not on a standards track. Do not use it on production sites facing the Web: it will not work for every user. There may also be large incompatibilities between implementations and the behavior may change in the future.

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

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.");
  }
});

Related Events

• mozbrowserasyncscroll
• mozbrowserclose
• mozbrowsercontextmenu
• mozbrowsererror
• mozbrowsericonchange
• mozbrowserloadend
• mozbrowserloadstart
• mozbrowserlocationchange
• mozbrowseropenwindow
• mozbrowsersecuritychange
• mozbrowsertitlechange

See also

• Using the Browser API