feat: save diagrams as .json with pretty printing, open accepts .json and .txt

VS Code/src/extension.ts

@@ -301,10 +301,10 @@ export class CodeMindMapPanel {
                     case 'saveMindMap':
                         const saveUri = await vscode.window.showSaveDialog({
                             filters: {
-                                'Text files': ['txt']
+                                'JSON files': ['json']
                             },
                             title: 'Save Mind Map As',
-                            defaultUri: CodeMindMapPanel._lastSavePath || vscode.Uri.file('CodeMindMap.txt')
+                            defaultUri: CodeMindMapPanel._lastSavePath || vscode.Uri.file('CodeMindMap.json')
                         });
 
                         if (saveUri) {
@@ -337,11 +337,11 @@ export class CodeMindMapPanel {
                     case 'loadMindMap':
                         const openUri = await vscode.window.showOpenDialog({
                             filters: {
-                                'Text files': ['txt']
+                                'Mind Map files': ['json', 'txt']
                             },
                             title: 'Load Mind Map',
                             canSelectMany: false,
-                            defaultUri: CodeMindMapPanel._lastSavePath || vscode.Uri.file('CodeMindMap.txt')
+                            defaultUri: CodeMindMapPanel._lastSavePath || vscode.Uri.file('CodeMindMap.json')
                         });
 
                         if (openUri && openUri[0]) {
@@ -1040,7 +1040,7 @@ export class CodeMindMapPanel {
         window.exportData = function() {
             if (!mind) return { success: false, error: 'Mind map not initialized' };
             try {
-                return mind.getDataString();
+                return JSON.stringify(JSON.parse(mind.getDataString()), null, 2);
             } catch (e) {
                 console.error('Error exporting data:', e);
                 return { success: false, error: e.message };

VS Code/webpack.dev.config.js

@@ -1,4 +1,5 @@
 const path = require('path');
+const CopyWebpackPlugin = require('copy-webpack-plugin');
 
 module.exports = {
     mode: 'development',
@@ -35,5 +36,15 @@ module.exports = {
     devtool: 'source-map',
     optimization: {
         minimize: false // Keep readable for debugging
-    }
+    },
+    plugins: [
+        new CopyWebpackPlugin({
+            patterns: [
+                {
+                    from: 'MindElixir/MindElixir.js',
+                    to: 'MindElixir/MindElixir.js'
+                }
+            ]
+        })
+    ]
 };

Visual Studio/CodeMindMap/CodeMindMapHtml.cs

@@ -307,7 +307,7 @@ function initMindMap() {
         window.exportData = function() {
             if (!mind) return { success: false, error: ""Mind map not initialized"" };
             try {
-                return mind.getDataString();
+                return JSON.stringify(JSON.parse(mind.getDataString()), null, 2);
             } catch (e) {
                 console.error(""Error exporting data:"", e);
                 return { success: false, error: e.message };

Visual Studio/CodeMindMap/MindMapToolWindowControl.xaml.cs

@@ -744,8 +744,8 @@ private async void SaveDataClick(object sender, RoutedEventArgs eventArgs)
             Microsoft.Win32.SaveFileDialog dialog = new Microsoft.Win32.SaveFileDialog
             {
                 FileName = SolutionMindMapData.DefaultDataFileName,
-                DefaultExt = ".txt",
-                Filter = "Text documents (.txt)|*.txt",
+                DefaultExt = ".json",
+                Filter = "JSON files (.json)|*.json",
                 InitialDirectory = InitialFileDialogDir,
                 Title = SaveDataButton.ToolTip.ToString()
             };
@@ -828,8 +828,8 @@ private async void LoadDataClick(object sender, RoutedEventArgs eventArgs)
             var dialog = new Microsoft.Win32.OpenFileDialog
             {
                 FileName = SolutionMindMapData.DefaultDataFileName,
-                DefaultExt = ".txt",
-                Filter = "Text documents (.txt)|*.txt",
+                DefaultExt = ".json",
+                Filter = "Mind Map files (.json, .txt)|*.json;*.txt",
                 InitialDirectory = InitialFileDialogDir,
                 Title = LoadDataButton.ToolTip.ToString()
             };

Visual Studio/CodeMindMap/SolutionMindMapData.cs

@@ -34,7 +34,7 @@ public SolutionMindMapData(string id, string solutionFilePath, string appDataFol
             }
         }
 
-        public const string DefaultDataFileName = "CodeMindMap.txt";
+        public const string DefaultDataFileName = "CodeMindMap.json";
 
         public string Id { get; set; }
         public string SolutionFilePath { get; set; }