From d01cb61473f6fb8a84568b240327018f68d9077d Mon Sep 17 00:00:00 2001
From: Anthony Johnson <aj@ohess.org>
Date: Wed, 23 Sep 2015 10:55:10 -0700
Subject: [PATCH] Add check for an already running nav

Fixes #250
---
 js/theme.js                         | 41 ++++++++++++++++-------------
 sphinx_rtd_theme/static/js/theme.js | 41 ++++++++++++++++-------------
 2 files changed, 44 insertions(+), 38 deletions(-)

diff --git a/js/theme.js b/js/theme.js
index b1f0c1b9..f7fcbdf4 100644
--- a/js/theme.js
+++ b/js/theme.js
@@ -12,33 +12,36 @@ function ThemeNav () {
         winPosition: 0,
         winHeight: null,
         docHeight: null,
-        isRunning: null
+        isRunning: false
     };
 
     nav.enable = function () {
         var self = this;
 
-        jQuery(function ($) {
-            self.init($);
+        if (!self.isRunning) {
+            self.isRunning = true;
+            jQuery(function ($) {
+                self.init($);
 
-            self.reset();
-            self.win.on('hashchange', self.reset);
+                self.reset();
+                self.win.on('hashchange', self.reset);
 
-            // Set scroll monitor
-            self.win.on('scroll', function () {
-                if (!self.linkScroll) {
-                    self.winScroll = true;
-                }
+                // Set scroll monitor
+                self.win.on('scroll', function () {
+                    if (!self.linkScroll) {
+                        self.winScroll = true;
+                    }
+                });
+                setInterval(function () { if (self.winScroll) self.onScroll(); }, 25);
+
+                // Set resize monitor
+                self.win.on('resize', function () {
+                    self.winResize = true;
+                });
+                setInterval(function () { if (self.winResize) self.onResize(); }, 25);
+                self.onResize();
             });
-            setInterval(function () { if (self.winScroll) self.onScroll(); }, 25);
-
-            // Set resize monitor
-            self.win.on('resize', function () {
-                self.winResize = true;
-            });
-            setInterval(function () { if (self.winResize) self.onResize(); }, 25);
-            self.onResize();
-        });
+        };
     };
 
     nav.init = function ($) {
diff --git a/sphinx_rtd_theme/static/js/theme.js b/sphinx_rtd_theme/static/js/theme.js
index 48a9f06b..432dc0c0 100644
--- a/sphinx_rtd_theme/static/js/theme.js
+++ b/sphinx_rtd_theme/static/js/theme.js
@@ -13,33 +13,36 @@ function ThemeNav () {
         winPosition: 0,
         winHeight: null,
         docHeight: null,
-        isRunning: null
+        isRunning: false
     };
 
     nav.enable = function () {
         var self = this;
 
-        jQuery(function ($) {
-            self.init($);
+        if (!self.isRunning) {
+            self.isRunning = true;
+            jQuery(function ($) {
+                self.init($);
 
-            self.reset();
-            self.win.on('hashchange', self.reset);
+                self.reset();
+                self.win.on('hashchange', self.reset);
 
-            // Set scroll monitor
-            self.win.on('scroll', function () {
-                if (!self.linkScroll) {
-                    self.winScroll = true;
-                }
+                // Set scroll monitor
+                self.win.on('scroll', function () {
+                    if (!self.linkScroll) {
+                        self.winScroll = true;
+                    }
+                });
+                setInterval(function () { if (self.winScroll) self.onScroll(); }, 25);
+
+                // Set resize monitor
+                self.win.on('resize', function () {
+                    self.winResize = true;
+                });
+                setInterval(function () { if (self.winResize) self.onResize(); }, 25);
+                self.onResize();
             });
-            setInterval(function () { if (self.winScroll) self.onScroll(); }, 25);
-
-            // Set resize monitor
-            self.win.on('resize', function () {
-                self.winResize = true;
-            });
-            setInterval(function () { if (self.winResize) self.onResize(); }, 25);
-            self.onResize();
-        });
+        };
     };
 
     nav.init = function ($) {