From 4b3d8836396150eed0903da0f0e17e5bd048ed6f Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Gina=20H=C3=A4u=C3=9Fge?= <gina@octoprint.org>
Date: Mon, 23 Oct 2017 13:49:33 +0200
Subject: [PATCH] Don't evaluate onWebcamLoaded more than once

Firefox for some reason keeps triggering the event and we don't want to
do unnecessary work on each trigger (and flood the log with debug
statements).
---
 src/octoprint/static/js/app/viewmodels/control.js | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/src/octoprint/static/js/app/viewmodels/control.js b/src/octoprint/static/js/app/viewmodels/control.js
index 3e5d24b8..4950af7b 100644
--- a/src/octoprint/static/js/app/viewmodels/control.js
+++ b/src/octoprint/static/js/app/viewmodels/control.js
@@ -402,6 +402,8 @@ $(function() {
         };
 
         self.onWebcamLoaded = function() {
+            if (self.webcamLoaded()) return;
+
             log.debug("Webcam stream loaded");
             self.webcamLoaded(true);
             self.webcamError(false);