From 4b980cb01006ecb11115c0cd18c7db78e45db5c2 Mon Sep 17 00:00:00 2001
From: Pranav Kant <pranavk@collabora.co.uk>
Date: Thu, 22 Mar 2018 14:07:07 +0530
Subject: [PATCH] fix back button navigation (#183)

now backbutton when document is opened takes you back to the files app
from where the document was opened.
---
 js/viewer/viewer.js | 16 ++++++++++++++++
 1 file changed, 16 insertions(+)

diff --git a/js/viewer/viewer.js b/js/viewer/viewer.js
index 8bdf3950..a1ae922c 100644
--- a/js/viewer/viewer.js
+++ b/js/viewer/viewer.js
@@ -107,6 +107,22 @@ var odfViewer = {
 
 		$('#app-content #controls').addClass('hidden');
 		$('#app-content').append($iframe);
+		window.location.assign(window.location.href + '#richdocuments');
+
+		window.addEventListener('hashchange', function(e) {
+			// handle double hash (eg: ##richdocuments)
+			var hash = window.location.hash.replace(/#/g, '');
+			// unload
+			if (hash !== 'richdocuments') {
+				odfViewer.onClose();
+			}
+			// load
+			else if (hash === 'richdocuments' && $('#richdocumentsframe').length === 0) {
+				$('#app-content #controls').addClass('hidden');
+				$('#app-navigation').addClass('hidden');
+				$('#app-content').append($iframe);
+			}
+		});
 	},
 
 	onClose: function() {