From ec9aebdbe039e26bba386c08a5d3062d3ed3107e Mon Sep 17 00:00:00 2001
From: Stephanie Closson <srclosson@gmail.com>
Date: Fri, 22 Sep 2023 14:12:38 -0300
Subject: [PATCH] fixed issue with equality in props, moved to underscore

---
 package.json          |  4 +++-
 src/divPanelChild.tsx |  4 ++--
 yarn.lock             | 15 ++++++++++-----
 3 files changed, 15 insertions(+), 8 deletions(-)

diff --git a/package.json b/package.json
index e2d2a2e..ac03bfb 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "grafana-div-panel",
-  "version": "1.2.1",
+  "version": "1.2.2",
   "description": "Create your own panel with html + css and javascript",
   "scripts": {
     "build": "webpack -c ./.config/webpack/webpack.config.ts --env production",
@@ -34,6 +34,7 @@
     "@types/prop-types": "15.7.5",
     "@types/react": "18.2.22",
     "@cypress/request": "3.0.0",
+    "@types/underscore": "^1.11.9",
     "acorn": "8.8.2",
     "console-feed": "3.5.0",
     "copy-webpack-plugin": "^11.0.0",
@@ -67,6 +68,7 @@
     "typescript": "4.8.4",
     "webpack": "^5.86.0",
     "webpack-cli": "^5.1.4",
+    "underscore": "^1.13.6",
     "webpack-livereload-plugin": "^3.0.2"
   },
   "dependencies": {
diff --git a/src/divPanelChild.tsx b/src/divPanelChild.tsx
index b0d718e..cae4015 100644
--- a/src/divPanelChild.tsx
+++ b/src/divPanelChild.tsx
@@ -2,6 +2,7 @@ import React, { Component } from 'react';
 import * as functions from 'utils/functions';
 import { DivPanelChildProps, divStyle } from './types';
 import { register, compile } from 'utils/handlebars';
+import { isEqual } from 'underscore';
 
 interface State {
   ref: HTMLDivElement | null;
@@ -19,8 +20,7 @@ export class DivPanelChild extends Component<DivPanelChildProps, State> {
 
   shouldComponentUpdate = (prevProps: DivPanelChildProps, prevState: State): boolean => {
     const truth =
-      ((typeof prevProps !== "undefined" && typeof this.props !== "undefined") &&
-      (JSON.stringify(prevProps) !== JSON.stringify(this.props))) ||
+      isEqual(prevProps, this.props) ||
       prevProps.data.state === 'Done' ||
       prevProps.data.state === 'Streaming';
     return truth;
diff --git a/yarn.lock b/yarn.lock
index ec98b09..9902dc4 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -2943,6 +2943,11 @@
   resolved "https://registry.yarnpkg.com/@types/tough-cookie/-/tough-cookie-4.0.3.tgz#3d06b6769518450871fbc40770b7586334bdfd90"
   integrity sha512-THo502dA5PzG/sfQH+42Lw3fvmYkceefOspdCwpHRul8ik2Jv1K8I5OZz1AT3/rs46kwgMCe9bSBmDLYkkOMGg==
 
+"@types/underscore@^1.11.9":
+  version "1.11.9"
+  resolved "https://registry.yarnpkg.com/@types/underscore/-/underscore-1.11.9.tgz#76a071d27e544e422dbf00f956818b1057f377b2"
+  integrity sha512-M63wKUdsjDFUfyFt1TCUZHGFk9KDAa5JP0adNUErbm0U45Lr06HtANdYRP+GyleEopEoZ4UyBcdAC5TnW4Uz2w==
+
 "@types/uuid@9.0.1":
   version "9.0.1"
   resolved "https://registry.yarnpkg.com/@types/uuid/-/uuid-9.0.1.tgz#98586dc36aee8dacc98cc396dbca8d0429647aa6"
@@ -10122,16 +10127,16 @@ unbox-primitive@^1.0.2:
     has-symbols "^1.0.3"
     which-boxed-primitive "^1.0.2"
 
-underscore@1.12.1:
-  version "1.12.1"
-  resolved "https://registry.yarnpkg.com/underscore/-/underscore-1.12.1.tgz#7bb8cc9b3d397e201cf8553336d262544ead829e"
-  integrity sha512-hEQt0+ZLDVUMhebKxL4x1BTtDY7bavVofhZ9KZ4aI26X9SRaE+Y3m83XUL1UP2jn8ynjndwCCpEHdUG+9pP1Tw==
-
 underscore@1.7.0:
   version "1.7.0"
   resolved "https://registry.yarnpkg.com/underscore/-/underscore-1.7.0.tgz#6bbaf0877500d36be34ecaa584e0db9fef035209"
   integrity sha512-cp0oQQyZhUM1kpJDLdGO1jPZHgS/MpzoWYfe9+CM2h/QGDZlqwT2T3YGukuBdaNJ/CAPoeyAZRRHz8JFo176vA==
 
+underscore@^1.13.6:
+  version "1.13.6"
+  resolved "https://registry.yarnpkg.com/underscore/-/underscore-1.13.6.tgz#04786a1f589dc6c09f761fc5f45b89e935136441"
+  integrity sha512-+A5Sja4HP1M08MaXya7p5LvjuM7K6q/2EaC0+iovj/wOcMsTzMvDFbasi/oSapiwOlt252IqsKqPjCl7huKS0A==
+
 unicode-canonical-property-names-ecmascript@^2.0.0:
   version "2.0.0"
   resolved "https://registry.yarnpkg.com/unicode-canonical-property-names-ecmascript/-/unicode-canonical-property-names-ecmascript-2.0.0.tgz#301acdc525631670d39f6146e0e77ff6bbdebddc"