From 7f8a9b12d9e521c68e5b055b52b860059f4ef19e Mon Sep 17 00:00:00 2001
From: Jonas Jenwald <jonas.jenwald@gmail.com>
Date: Sun, 14 Feb 2021 10:39:34 +0100
Subject: [PATCH] Stop including the "errorWrapper" HTML code in
 `MOZCENTRAL`-builds

Given that these HTML elements are not being used at all in `MOZCENTRAL`-builds, note the preprocessor check in `PDFViewerApplication._otherError`, we obviously don't need the HTML code either.
---
 web/app.js      |  6 ++++--
 web/viewer.html |  2 ++
 web/viewer.js   | 21 +++++++++++++--------
 3 files changed, 19 insertions(+), 10 deletions(-)

diff --git a/web/app.js b/web/app.js
index dc080e7ca..69a155a64 100644
--- a/web/app.js
+++ b/web/app.js
@@ -824,8 +824,10 @@ const PDFViewerApplication = {
   async close() {
     this._unblockDocumentLoadEvent();
 
-    const errorWrapper = this.appConfig.errorWrapper.container;
-    errorWrapper.hidden = true;
+    if (typeof PDFJSDev === "undefined" || !PDFJSDev.test("MOZCENTRAL")) {
+      const { container } = this.appConfig.errorWrapper;
+      container.hidden = true;
+    }
 
     if (!this.pdfLoadingTask) {
       return undefined;
diff --git a/web/viewer.html b/web/viewer.html
index 4f1d08091..c390ba62e 100644
--- a/web/viewer.html
+++ b/web/viewer.html
@@ -320,6 +320,7 @@ See https://github.com/adobe-type-tools/cmap-resources
           <div id="viewer" class="pdfViewer"></div>
         </div>
 
+<!--#if !MOZCENTRAL-->
         <div id="errorWrapper" hidden='true'>
           <div id="errorMessageLeft">
             <span id="errorMessage"></span>
@@ -338,6 +339,7 @@ See https://github.com/adobe-type-tools/cmap-resources
           <div class="clearBoth"></div>
           <textarea id="errorMoreInfo" hidden='true' readonly="readonly"></textarea>
         </div>
+<!--#endif-->
       </div> <!-- mainContainer -->
 
       <div id="overlayContainer" class="hidden">
diff --git a/web/viewer.js b/web/viewer.js
index b524d840e..8c8435660 100644
--- a/web/viewer.js
+++ b/web/viewer.js
@@ -61,6 +61,18 @@ if (typeof PDFJSDev !== "undefined" && PDFJSDev.test("CHROME || GENERIC")) {
 }
 
 function getViewerConfiguration() {
+  let errorWrapper = null;
+  if (typeof PDFJSDev === "undefined" || !PDFJSDev.test("MOZCENTRAL")) {
+    errorWrapper = {
+      container: document.getElementById("errorWrapper"),
+      errorMessage: document.getElementById("errorMessage"),
+      closeButton: document.getElementById("errorClose"),
+      errorMoreInfo: document.getElementById("errorMoreInfo"),
+      moreInfoButton: document.getElementById("errorShowMore"),
+      lessInfoButton: document.getElementById("errorShowLess"),
+    };
+  }
+
   return {
     appContainer: document.body,
     mainContainer: document.getElementById("viewerContainer"),
@@ -177,14 +189,7 @@ function getViewerConfiguration() {
         linearized: document.getElementById("linearizedField"),
       },
     },
-    errorWrapper: {
-      container: document.getElementById("errorWrapper"),
-      errorMessage: document.getElementById("errorMessage"),
-      closeButton: document.getElementById("errorClose"),
-      errorMoreInfo: document.getElementById("errorMoreInfo"),
-      moreInfoButton: document.getElementById("errorShowMore"),
-      lessInfoButton: document.getElementById("errorShowLess"),
-    },
+    errorWrapper,
     printContainer: document.getElementById("printContainer"),
     openFileInputName: "fileInput",
     debuggerScriptPath: "./debugger.js",