From d90ff4e22acf0ed4aa32bcaa2b51a957047de714 Mon Sep 17 00:00:00 2001
From: THARAGESHWARAN-SATHYAMOORTHY <s.tharageshwaran6343000@gmail.com>
Date: Fri, 16 Jun 2023 11:14:10 +0530
Subject: [PATCH] Fixed undo and redo while opening file from imports and
 gallery

---
 .../SchematicEditor/Helper/ToolbarTools.js      | 17 +++++++++++++++++
 .../SchematicEditor/SchematicToolbar.js         |  2 ++
 2 files changed, 19 insertions(+)

diff --git a/eda-frontend/src/components/SchematicEditor/Helper/ToolbarTools.js b/eda-frontend/src/components/SchematicEditor/Helper/ToolbarTools.js
index 7b7da98da..a79ac0c9d 100644
--- a/eda-frontend/src/components/SchematicEditor/Helper/ToolbarTools.js
+++ b/eda-frontend/src/components/SchematicEditor/Helper/ToolbarTools.js
@@ -8,6 +8,17 @@ import * as actions from '../../../redux/actions/actions'
 import ComponentParameters from './ComponentParametersData'
 var graph
 var undoManager
+export { undoManager };
+
+let fileOpenedSuccessfully = false;
+
+export function setFileOpenedStatus(status) {
+  fileOpenedSuccessfully = status;
+}
+
+export function getFileOpenedStatus() {
+  return fileOpenedSuccessfully;
+}
 
 const {
   mxPrintPreview,
@@ -65,6 +76,11 @@ const checkWireChange = (changes) => {
 
 // UNDO
 export function Undo() {
+  if (fileOpenedSuccessfully) {
+    undoManager.clear(); // Clear the undoManager
+    fileOpenedSuccessfully = false;
+  }
+  // undoManager.clear()
   if (undoManager.indexOfNextAdd === 0) {
     // Nothing to undo
     return
@@ -1061,6 +1077,7 @@ export function renderGalleryXML(xml) {
   graph.removeCells(graph.getChildVertices(graph.getDefaultParent()))
   graph.view.refresh()
   var xmlDoc = mxUtils.parseXml(xml)
+  setFileOpenedStatus(true);
   parseXmlToGraph(xmlDoc, graph)
 }
 // Certain Variables need to be Defined before Saving the Circuit, XML Wire Connections does that 
diff --git a/eda-frontend/src/components/SchematicEditor/SchematicToolbar.js b/eda-frontend/src/components/SchematicEditor/SchematicToolbar.js
index e2803127d..96f068fa0 100644
--- a/eda-frontend/src/components/SchematicEditor/SchematicToolbar.js
+++ b/eda-frontend/src/components/SchematicEditor/SchematicToolbar.js
@@ -42,6 +42,7 @@ import queryString from 'query-string'
 import { RotateLeft } from '@material-ui/icons'
 import AddPhotoAlternateIcon from '@material-ui/icons/AddPhotoAlternate'
 import { fetchRole } from '../../redux/actions/authActions'
+import { setFileOpenedStatus } from './Helper/ToolbarTools';
 
 import {
   NetlistModal,
@@ -630,6 +631,7 @@ export default function SchematicToolbar ({
         setMessage('Unsupported file error !')
         handleSnacClick()
       } else {
+        setFileOpenedStatus(true); // Set flag to indicate successful file opening
         dispatch(openLocalSch(obj))
       }
     }