Detecting if a browser is in full screen mode

Question

Is there any way of reliably detecting if a browser is running in full screen mode? I\'m pretty sure there isn\'t any browser API I can query, but has anyone worked it out b

Answer 1

Chrome 15, Firefox 10, and Safari 5.1 now provide APIs to programmatically trigger fullscreen mode. Fullscreen mode triggered this way provides events to detect fullscreen changes and CSS pseudo-classes for styling fullscreen elements.

See this hacks.mozilla.org blog post for details.