From e367f49686634d87b0e3db2e90690f3d4e7609ad Mon Sep 17 00:00:00 2001
From: Jonas Jenwald <jonas.jenwald@gmail.com>
Date: Thu, 17 Oct 2013 16:52:36 +0200
Subject: [PATCH] Disable Presentation Mode until the document has started
 rendering

---
 web/presentation_mode.js | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/web/presentation_mode.js b/web/presentation_mode.js
index c5d6a0dbe..c2aa7ac12 100644
--- a/web/presentation_mode.js
+++ b/web/presentation_mode.js
@@ -33,6 +33,8 @@ var PresentationMode = {
     this.container = options.container;
     this.secondaryToolbar = options.secondaryToolbar;
 
+    this.viewer = this.container.firstElementChild;
+
     this.firstPage = options.firstPage;
     this.lastPage = options.lastPage;
     this.pageRotateCw = options.pageRotateCw;
@@ -65,7 +67,8 @@ var PresentationMode = {
   },
 
   request: function presentationModeRequest() {
-    if (!PDFView.supportsFullscreen || this.isFullscreen) {
+    if (!PDFView.supportsFullscreen || this.isFullscreen ||
+        !this.viewer.hasChildNodes()) {
       return false;
     }