How does Facebooks new fullscreen photo viewer work?

Question

We're used to using websites like youtube in full screen, but now Facebook offers this for its image gallery. What is Facebook doing to allow full screen image browsing, that seems to use normal hmtl coding?

Answer 1

That is the non-standard Fullscreen API.

In theory (from an article linked from the page I linked to above):

var elem = document.getElementById("myId");  
if (elem.requestFullScreen) {  
  elem.requestFullScreen();  
} else if (elem.mozRequestFullScreen) {  
  elem.mozRequestFullScreen();  
} else if (elem.webkitRequestFullScreen) {  
  elem.webkitRequestFullScreen();  
}