From 59bb32fa44066efec0e33ab8feed569c2c78ff71 Mon Sep 17 00:00:00 2001
From: Frode Petterson <frode.andre.petterson@gmail.com>
Date: Mon, 20 Apr 2015 15:37:49 +0200
Subject: [PATCH 1/4] Create a spaceholder when resizing iframes.

---
 js/h5p-resizer.js | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/js/h5p-resizer.js b/js/h5p-resizer.js
index 6318fc8..3d83db6 100644
--- a/js/h5p-resizer.js
+++ b/js/h5p-resizer.js
@@ -46,6 +46,11 @@
    */
   actionHandlers.prepareResize = function (iframe, data, respond) {
     responseData = {};
+    
+    // Create spaceholder and insert after iframe.
+    var spaceholder = document.createElement('div');
+    spaceholder.style.height = (iframe.clientHeight - 1) + 'px';
+    iframe.parentNode.insertBefore(spaceholder, iframe.nextSibling);
 
     // Reset iframe height, in case content has shrinked.
     iframe.style.height = '1px';
@@ -64,6 +69,7 @@
   actionHandlers.resize = function (iframe, data, respond) {
     // Resize iframe so all content is visible.
     iframe.style.height = data.height + 'px';
+    iframe.nextSibling.remove();
   };
 
   /**

From 8433f654af1ff9fee495d492d66e6de98f9d7e75 Mon Sep 17 00:00:00 2001
From: Frode Petterson <frode.andre.petterson@gmail.com>
Date: Tue, 21 Apr 2015 13:56:24 +0200
Subject: [PATCH 2/4] Remove element from DOM the correct way.

---
 js/h5p-resizer.js | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/js/h5p-resizer.js b/js/h5p-resizer.js
index 3d83db6..894951b 100644
--- a/js/h5p-resizer.js
+++ b/js/h5p-resizer.js
@@ -46,7 +46,7 @@
    */
   actionHandlers.prepareResize = function (iframe, data, respond) {
     responseData = {};
-    
+
     // Create spaceholder and insert after iframe.
     var spaceholder = document.createElement('div');
     spaceholder.style.height = (iframe.clientHeight - 1) + 'px';
@@ -69,7 +69,7 @@
   actionHandlers.resize = function (iframe, data, respond) {
     // Resize iframe so all content is visible.
     iframe.style.height = data.height + 'px';
-    iframe.nextSibling.remove();
+    iframe.parentNode.removeChild(iframe.nextSibling);
   };
 
   /**

From 27a0a332988155f1846aae8cefc407bf8275cc59 Mon Sep 17 00:00:00 2001
From: Frode Petterson <frode.andre.petterson@gmail.com>
Date: Tue, 21 Apr 2015 15:08:59 +0200
Subject: [PATCH 3/4] Prevent running multiple resizer.

---
 js/h5p-resizer.js | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/js/h5p-resizer.js b/js/h5p-resizer.js
index 894951b..bbfb009 100644
--- a/js/h5p-resizer.js
+++ b/js/h5p-resizer.js
@@ -1,8 +1,9 @@
 // H5P iframe Resizer
 (function () {
-  if (!window.postMessage || !window.addEventListener) {
+  if (!window.postMessage || !window.addEventListener || window.h5pResizerInitialized) {
     return; // Not supported
   }
+  window.h5pResizerInitialized = true;
 
   // Map actions to handlers
   var actionHandlers = {};

From 10918905966344220c8832ec30ed9303422b83f2 Mon Sep 17 00:00:00 2001
From: Frode Petterson <frode.andre.petterson@gmail.com>
Date: Tue, 21 Apr 2015 16:22:51 +0200
Subject: [PATCH 4/4] Fixed fullscreen checker.

---
 js/h5p.js | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/js/h5p.js b/js/h5p.js
index 42b28f9..2978239 100644
--- a/js/h5p.js
+++ b/js/h5p.js
@@ -67,7 +67,7 @@ H5P.init = function (target) {
 
   // Determine if we can use full screen
   if (H5P.canHasFullScreen === undefined) {
-    H5P.canHasFullScreen = (H5P.isFramed && H5P.externalEmbed !== false) ? (document.fullscreenEnabled || document.webkitFullscreenEnabled || document.mozFullScreenEnabled || document.msFullscreenEnabled) : true;
+    H5P.canHasFullScreen = (H5P.isFramed && H5P.externalEmbed !== false) ? ((document.fullscreenEnabled || document.webkitFullscreenEnabled || document.mozFullScreenEnabled || document.msFullscreenEnabled) ? true : false) : true;
   }
 
   // H5Ps added in normal DIV.
@@ -111,7 +111,7 @@ H5P.init = function (target) {
     var instance = H5P.newRunnable(library, contentId, $container, true);
 
     // Check if we should add and display a fullscreen button for this H5P.
-    if (contentData.fullScreen == 1) {
+    if (contentData.fullScreen == 1 && H5P.canHasFullScreen) {
       H5P.jQuery('<div class="h5p-content-controls"><div role="button" tabindex="1" class="h5p-enable-fullscreen" title="' + H5P.t('fullscreen') + '"></div></div>').prependTo($container).children().click(function () {
         H5P.fullScreen($container, instance);
       });