From 5d4e12e3b961f6035dd567e24b3a6e8de258dc78 Mon Sep 17 00:00:00 2001
From: Brion Vibber <brion@pobox.com>
Date: Fri, 1 Nov 2013 10:06:59 -0700
Subject: [PATCH] Fullscreen support for IE 11

Support "ms"-prefixed fullscreen API in IE 11.

Bug: 56470
Change-Id: I7647433c12314ac34f3fcd6d03e7d4da6893a7ee
---
 js/multilightbox/lightboxinterface.js | 11 +++++++++--
 1 file changed, 9 insertions(+), 2 deletions(-)

diff --git a/js/multilightbox/lightboxinterface.js b/js/multilightbox/lightboxinterface.js
index eb4d79669..375cf613e 100644
--- a/js/multilightbox/lightboxinterface.js
+++ b/js/multilightbox/lightboxinterface.js
@@ -13,7 +13,8 @@
 			if ( !lbinterface.fullscreenButtonJustPressed &&
 					!document.fullscreenElement &&
 					!document.mozFullScreenElement &&
-					!document.webkitFullScreenElement ) {
+					!document.webkitFullScreenElement &&
+					!document.msFullScreenElement) {
 				lbinterface.fullscreen();
 			} else if ( lbinterface.fullscreenButtonJustPressed ) {
 				lbinterface.fullscreenButtonJustPressed = false;
@@ -72,6 +73,7 @@
 		window.addEventListener( 'fullscreenchange', handleFullscreenChange );
 		window.addEventListener( 'mozfullscreenchange', handleFullscreenChange );
 		window.addEventListener( 'webkitfullscreenchange', handleFullscreenChange );
+		window.addEventListener( 'msfullscreenchange', handleFullscreenChange );
 	}
 
 	LIP = LightboxInterface.prototype;
@@ -101,13 +103,16 @@
 		if ( this.isFullScreen ) {
 			if ( !document.fullscreenElement &&
 					!document.mozFullScreenElement &&
-					!document.webkitFullScreenElement ) {
+					!document.webkitFullScreenElement &&
+					!document.msFullScreenElement ) {
 				if ( document.cancelFullScreen ) {
 					document.cancelFullScreen();
 				} else if ( document.mozCancelFullScreen ) {
 					document.mozCancelFullScreen();
 				} else if ( document.webkitCancelFullScreen ) {
 					document.webkitCancelFullScreen();
+				} else if ( document.msCancelFullScreen ) {
+					document.msCancelFullScreen();
 				}
 			}
 
@@ -130,6 +135,8 @@
 				fullscreen.mozRequestFullScreen();
 			} else if ( fullscreen.webkitRequestFullScreen ) {
 				fullscreen.webkitRequestFullScreen();
+			} else if ( fullscreen.msRequestFullscreen ) {
+				fullscreen.msRequestFullscreen();
 			}
 
 			lightboxHooks.callAll( 'fullscreen', this );