From 96c88b5a1e668eb506db6db3544feadcf592db6f Mon Sep 17 00:00:00 2001
From: Pranav Kant <pranavk@collabora.com>
Date: Fri, 1 Apr 2016 18:30:39 +0530
Subject: [PATCH] Use window.postMessage API for cross-domain frame
 communication

Use filename as additional param to let the child frame know the
name of the document easily.

Use closebutton param to instruct the child frame about whether
to show the close button, or not.
---
 js/documents.js | 25 +++++++++----------------
 1 file changed, 9 insertions(+), 16 deletions(-)

diff --git a/js/documents.js b/js/documents.js
index 42bcec75..288fddb3 100644
--- a/js/documents.js
+++ b/js/documents.js
@@ -199,29 +199,22 @@ var documentsMain = {
 					var viewer = urlsrc +
 						'WOPISrc=' + encodeURIComponent(documentsMain.url) +
 						'&host=' + $('#wopi-url').val() +
-						'&permission=' + 'view' +
-						'&timestamp=' + '';
+			                        '&filename=' + title +
+					        '&permission=' + 'view' +
+			                        '&timestamp=' + '' +
+			                        '&closebutton=1';
 
 					var frame = '<iframe id="loleafletframe" allowfullscreen style="width:100%;height:100%;position:absolute;" src="' + viewer + '"  sandbox="allow-scripts allow-same-origin allow-popups allow-modals"/>';
 					$('#mainContainer').append(frame);
 
 					$('#loleafletframe').load(function(){
 						documentsMain.overlay.documentOverlay('hide');
-						var iframe = $('#loleafletframe').contents();
-						iframe.find('#tb_toolbar-up_item_close').click(function() {
-						documentsMain.onClose();
+						window.addEventListener('message', function(e){
+							if (e.data === 'close') {
+								documentsMain.onClose();
+							}
+						});
 					});
-					var frameWindow = $('#loleafletframe')[0].contentWindow;
-					(function() {
-						cloudSuiteOnClick = frameWindow.onClick;
-						frameWindow.onClick = function() {
-							fileName = encodeURIComponent(title.substr(0, title.lastIndexOf('.')) || title);
-							frameWindow.map.options.doc = fileName;
-							cloudSuiteOnClick.apply(this, arguments);
-							frameWindow.map.options.doc = documentsMain.url;
-						};
-					})();
-				});
 			});
 		},