From fe8ec09de6afbce6273bb04c0ac27be74c86e253 Mon Sep 17 00:00:00 2001
From: "Evan W. Patton" <ewpatton@mit.edu>
Date: Mon, 15 May 2017 18:08:26 -0400
Subject: [PATCH] Improve rendering of flyouts with many blocks

---
 core/flyout.js | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/core/flyout.js b/core/flyout.js
index 0df05b16e..54e0fe8ca 100644
--- a/core/flyout.js
+++ b/core/flyout.js
@@ -758,6 +758,7 @@ Blockly.Flyout.prototype.show = function(xmlList) {
   }
 
   this.setVisible(true);
+  this.workspace_.rendered = false;
   // Create the blocks to be shown in this flyout.
   var contents = [];
   var gaps = [];
@@ -800,6 +801,12 @@ Blockly.Flyout.prototype.show = function(xmlList) {
       }
     }
   }
+  this.workspace_.rendered = true;
+  var blocks = goog.object.getValues(this.workspace_.blockDB_);
+  for (var i = 0; i < blocks.length; i++) {
+    blocks[i].initSvg();
+  }
+  this.workspace_.render();
 
   this.layout_(contents, gaps);