From fd7e5f685a75c8d0bcc4fba0ff712f8d8521a355 Mon Sep 17 00:00:00 2001
From: "Evan W. Patton" <ewpatton@mit.edu>
Date: Mon, 4 Mar 2019 09:27:18 -0500
Subject: [PATCH] Update Closure Library to fix typeblocking autocomplete

Change-Id: Ia732cb6a35725ef49bb5605f1ab0bc6a808fe33b
---
 .gitmodules                                |  2 +-
 appinventor/blocklyeditor/src/typeblock.js | 10 +++++++++-
 appinventor/lib/closure-library            |  2 +-
 3 files changed, 11 insertions(+), 3 deletions(-)

diff --git a/.gitmodules b/.gitmodules
index 330aacac513..4ad1fbc3bce 100644
--- a/.gitmodules
+++ b/.gitmodules
@@ -3,4 +3,4 @@
 	url = https://github.com/mit-cml/blockly.git
 [submodule "appinventor/lib/closure-library"]
 	path = appinventor/lib/closure-library
-	url = https://github.com/google/closure-library.git
+	url = https://github.com/mit-cml/closure-library.git
diff --git a/appinventor/blocklyeditor/src/typeblock.js b/appinventor/blocklyeditor/src/typeblock.js
index ca1392c662a..c9bf0079697 100644
--- a/appinventor/blocklyeditor/src/typeblock.js
+++ b/appinventor/blocklyeditor/src/typeblock.js
@@ -170,6 +170,10 @@ Blockly.TypeBlock.prototype.handleKey = function(e){
       case 34:  // Page Down
       case 35:  // Shift
       case 36:  // End
+      case 37:  // Left Arrow
+      case 38:  // Up Arrow
+      case 39:  // Right Arrow
+      case 40:  // Down Arrow
       case 45:  // Ins
       case 91:  // Meta
       case 112: // F1
@@ -197,8 +201,12 @@ Blockly.TypeBlock.prototype.handleKey = function(e){
       // Can't seem to make Firefox display first character, so keep all browsers from automatically
       // displaying the first character and add it manually.
       e.preventDefault();
+      if (e.charCode == 0) {
+        // Don't try to render a non-printing character.
+        return;
+      }
       goog.dom.getElement(this.inputText_).value =
-        String.fromCharCode(e.charCode != null ? e.charCode : e.keycode);
+        String.fromCharCode(e.charCode != null ? e.charCode : e.keyCode);
     }
   };
 
diff --git a/appinventor/lib/closure-library b/appinventor/lib/closure-library
index effb4062e34..91eccc0185c 160000
--- a/appinventor/lib/closure-library
+++ b/appinventor/lib/closure-library
@@ -1 +1 @@
-Subproject commit effb4062e34576a011e788a0d33c1433a677f940
+Subproject commit 91eccc0185c296aa9eda3e025cf186469895e84b