From 9326378bbf6e4f8bd32233d0d1c0dec62729ceec Mon Sep 17 00:00:00 2001
From: intellisense <eye-see-you@live.com>
Date: Tue, 31 Mar 2015 03:26:34 +0500
Subject: [PATCH] Only add loading indicator if not already present

If for some reason the xhr request failed, the loading indicator cloned again upon new request. This pull request makes sure that the loading indicator should only be cloned into page container if not already present.
---
 share/pdf2htmlEX.js.in | 11 +++++++----
 1 file changed, 7 insertions(+), 4 deletions(-)

diff --git a/share/pdf2htmlEX.js.in b/share/pdf2htmlEX.js.in
index 636c94a..ae6a688 100644
--- a/share/pdf2htmlEX.js.in
+++ b/share/pdf2htmlEX.js.in
@@ -361,10 +361,13 @@ Viewer.prototype = {
     if (url) {
       this.pages_loading[idx] = true;       // set semaphore
 
-      // add a copy of the loading indicator
-      var new_loading_indicator = this.loading_indicator.cloneNode();
-      new_loading_indicator.classList.add('active');
-      cur_page_ele.appendChild(new_loading_indicator);
+      // add a copy of the loading indicator if not already present
+      var new_loading_indicator = cur_page_ele.getElementsByClassName(this.config['loading_indicator_cls'])[0];
+      if (typeof new_loading_indicator === 'undefined'){
+        new_loading_indicator = this.loading_indicator.cloneNode(true);
+        new_loading_indicator.classList.add('active');
+        cur_page_ele.appendChild(new_loading_indicator);
+      }
 
       // load data
       {