From 33868ecdff9d42f7a863c5ec4ecf6810156bb70f Mon Sep 17 00:00:00 2001
From: pixelzoom <cmalley@pixelzoom.com>
Date: Thu, 4 Mar 2021 18:46:11 -0700
Subject: [PATCH] move noRealRootsNode.visibleProperty phetioReadOnly:false
 from overrides.js to code, #148

---
 js/graphing-quadratics-phet-io-overrides.js | 3 ---
 js/standardform/view/NoRealRootsNode.js     | 4 ++--
 2 files changed, 2 insertions(+), 5 deletions(-)

diff --git a/js/graphing-quadratics-phet-io-overrides.js b/js/graphing-quadratics-phet-io-overrides.js
index 09989449..6b1d364a 100644
--- a/js/graphing-quadratics-phet-io-overrides.js
+++ b/js/graphing-quadratics-phet-io-overrides.js
@@ -217,9 +217,6 @@ window.phet.preloads.phetio.phetioElementsOverrides =
     "graphingQuadratics.standardFormScreen.view.leftPointToolNode.visibleProperty": {
       "phetioFeatured": true
     },
-    "graphingQuadratics.standardFormScreen.view.noRealRootsNode.visibleProperty": {
-      "phetioReadOnly": true
-    },
     "graphingQuadratics.standardFormScreen.view.rightPointToolNode.visibleProperty": {
       "phetioFeatured": true
     },
diff --git a/js/standardform/view/NoRealRootsNode.js b/js/standardform/view/NoRealRootsNode.js
index 5fe5296f..b2858239 100644
--- a/js/standardform/view/NoRealRootsNode.js
+++ b/js/standardform/view/NoRealRootsNode.js
@@ -41,8 +41,8 @@ class NoRealRootsNode extends Node {
 
       // phet-io
       tandem: Tandem.REQUIRED,
-      phetioDocumentation: 'displays NO REAL ROOTS when the interactive quadratic has no real roots'
-
+      phetioDocumentation: 'displays NO REAL ROOTS when the interactive quadratic has no real roots',
+      visiblePropertyOptions: { phetioReadOnly: true } // because visibility is derived below
     }, options );
 
     const textNode = new Text( graphingQuadraticsStrings.noRealRoots, {