DYN-6857 homepage settings refactor

src/DynamoCore/Configuration/PreferenceSettings.cs

@@ -397,19 +397,8 @@ public bool IsBackgroundPreviewActive
 
         /// <summary>
         /// Persistence for Dynamo HomePage
-        /// </summary>
-        [XmlIgnore]
-        internal Dictionary<string, object> HomePageSettings { get; set; }
-
-        /// <summary>
-        /// A helper intermediary string to allow the serialization of the HomePageSettings dictionary
-        /// </summary>
-        public string HomePageSettingsSerialized
-        {
-            get => Newtonsoft.Json.JsonConvert.SerializeObject(HomePageSettings);   
-            set => HomePageSettings = Newtonsoft.Json.JsonConvert.DeserializeObject<Dictionary<string, object>>(value);
-        }
-
+        /// </summary>  
+        public List<string> HomePageSettings { get; set; }
         #endregion
 
         #region Dynamo application settings
@@ -997,6 +986,7 @@ public PreferenceSettings()
             backupLocation = string.Empty;
             GraphChecksumItemsList = new List<GraphChecksumItem>();
             isMLAutocompleteTOUApproved = true;
+            HomePageSettings = new List<string>();
         }
 
         /// <summary>
@@ -1114,7 +1104,7 @@ public static PreferenceSettings LoadContent(string content)
                     return new PreferenceSettings() { isCreatedFromValidFile = false };
                 }
             }
-
+                
             settings.CustomPackageFolders = settings.CustomPackageFolders.Distinct().ToList();
             settings.GroupStyleItemsList = settings.GroupStyleItemsList.GroupBy(entry => entry.Name).Select(result => result.First()).ToList();
             MigrateStdLibTokenToBuiltInToken(settings);

src/DynamoCore/PublicAPI.Unshipped.txt

@@ -171,8 +171,8 @@ Dynamo.Configuration.PreferenceSettings.HideAutocompleteMethodOptions.get -> boo
 Dynamo.Configuration.PreferenceSettings.HideAutocompleteMethodOptions.set -> void
 Dynamo.Configuration.PreferenceSettings.HideNodesBelowSpecificConfidenceLevel.get -> bool
 Dynamo.Configuration.PreferenceSettings.HideNodesBelowSpecificConfidenceLevel.set -> void
-Dynamo.Configuration.PreferenceSettings.HomePageSettingsSerialized.get -> string
-Dynamo.Configuration.PreferenceSettings.HomePageSettingsSerialized.set -> void
+Dynamo.Configuration.PreferenceSettings.HomePageSettings.get -> System.Collections.Generic.List<string>
+Dynamo.Configuration.PreferenceSettings.HomePageSettings.set -> void
 Dynamo.Configuration.PreferenceSettings.IronPythonResolveTargetVersion.get -> string
 Dynamo.Configuration.PreferenceSettings.IronPythonResolveTargetVersion.set -> void
 Dynamo.Configuration.PreferenceSettings.IsADPAnalyticsReportingApproved.get -> bool

src/DynamoCoreWpf/Views/HomePage/HomePage.xaml.cs

@@ -299,7 +299,8 @@ private async void SendRecentGraphsData()
             {
                 if (startPage.DynamoViewModel.PreferenceSettings.HomePageSettings != null)
                 {
-                    var settingsJson = Newtonsoft.Json.JsonConvert.SerializeObject(startPage.DynamoViewModel.PreferenceSettings.HomePageSettings);
+                    var dict = GetDictFromListStrings(startPage.DynamoViewModel.PreferenceSettings.HomePageSettings);
+                    var settingsJson = Newtonsoft.Json.JsonConvert.SerializeObject(dict);
                     settingsJson = System.Web.HttpUtility.JavaScriptStringEncode(settingsJson);
 
                     await dynWebView.CoreWebView2.ExecuteScriptAsync(@$"window.setHomePageSettings('{settingsJson}');");
@@ -442,30 +443,62 @@ internal void SaveSettings(string settingsJson)
         {
             if (!string.IsNullOrEmpty(settingsJson) && this.startPage != null)
             {
-                var settingsDict = Newtonsoft.Json.JsonConvert.DeserializeObject<Dictionary<string, object>>(settingsJson);
+                var settingsDict = Newtonsoft.Json.JsonConvert.DeserializeObject<Dictionary<string, string>>(settingsJson);
 
                 // If the HomePageSettings have not been previously created, initialize it now
                 if (startPage.DynamoViewModel.PreferenceSettings.HomePageSettings == null)
                 {
-                    startPage.DynamoViewModel.PreferenceSettings.HomePageSettings = new Dictionary<string, object>();
-                }    
+                    startPage.DynamoViewModel.PreferenceSettings.HomePageSettings = new List<string>();
+                }
+
+                var dict = GetDictFromListStrings(startPage.DynamoViewModel.PreferenceSettings.HomePageSettings);
 
                 // Change existing values, or add new ones
                 foreach (var setting in settingsDict)
                 {
-                    if (startPage.DynamoViewModel.PreferenceSettings.HomePageSettings.ContainsKey(setting.Key)
-                        && startPage.DynamoViewModel.PreferenceSettings.HomePageSettings[setting.Key] != setting.Value)
+                    if (dict.ContainsKey(setting.Key))
                     {
-                        startPage.DynamoViewModel.PreferenceSettings.HomePageSettings[setting.Key] = setting.Value;
+                        if (dict[setting.Key] == setting.Value) continue;
+                        dict[setting.Key] = setting.Value;
                     }
                     else
                     {
-                        startPage.DynamoViewModel.PreferenceSettings.HomePageSettings.Add(setting.Key, setting.Value);
-                    }
+                        dict.Add(setting.Key, setting.Value);
+                    }   
                 }
+
+                SetListStringsFromDict(dict, startPage.DynamoViewModel.PreferenceSettings.HomePageSettings);
+            }
+        }
+
+        private void SetListStringsFromDict(Dictionary<string, string> dict, List<string> homePageSettings)
+        {
+            homePageSettings.Clear();
+            foreach (var kvp in dict)
+            {
+                homePageSettings.Add($"{kvp.Key}:{kvp.Value}");
+            }
+        }
+
+        private Dictionary<string, string> GetDictFromListStrings(List<string> homePageSettings)
+        {
+            var dict = new Dictionary<string, string>();
+            if (!homePageSettings.Any()) return dict;
+
+            try
+            {
+                dict = homePageSettings.Select(item => item.Split(':'))
+                                       .Where(parts => parts.Length == 2)
+                                       .ToDictionary(parts => parts[0], parts => parts[1]);
+            }
+            catch(Exception ex)
+            {
+                this.startPage.DynamoViewModel.Model.Logger.Log("Failed to load HomePageSettings: " + ex.Message);
             }
+
+            return dict;
         }
-            
+
         internal void NewWorkspace()
         {
             this.startPage?.DynamoViewModel?.NewHomeWorkspaceCommand.Execute(null);

test/DynamoCoreTests/Configuration/PreferenceSettingsTests.cs

@@ -490,16 +490,15 @@ public void TestSerializingHomePageSettings()
             PreferenceSettings settings = new PreferenceSettings();
 
             // Assert defaults
-            Assert.AreEqual(settings.HomePageSettings, null);
-            Assert.AreEqual(settings.HomePageSettingsSerialized, "null");
+            Assert.IsEmpty(settings.HomePageSettings);
 
-            settings.HomePageSettings = new Dictionary<string, object> { { "greeting", "Hello World" } };
+            settings.HomePageSettings = new List<string> { { String.Concat("greeting", "Hello World") } };
 
             // Save
             settings.Save(tempPath);
             settings = PreferenceSettings.Load(tempPath);
 
-            Assert.AreEqual(settings.HomePageSettings["greeting"], "Hello World");
+            Assert.IsTrue(settings.HomePageSettings.Contains(String.Concat("greeting", "Hello World")));
         }
     }
 }

test/DynamoCoreWpfTests/HomePageTests.cs

@@ -65,7 +65,7 @@ public void HomePage_NewSettingsAreAddedCorrectly()
 
             homePage.DataContext = startPage;
 
-            Assert.IsNull(preferences.HomePageSettings);
+            Assert.IsEmpty(preferences.HomePageSettings);
 
             // Act
             var pair1 = @"{""Name"": ""Alice""}";

test/settings/DynamoSettings-NewSettings.xml

@@ -32,7 +32,10 @@
   <WindowW>1936</WindowW>
   <WindowH>1056</WindowH>
   <UseHardwareAcceleration>false</UseHardwareAcceleration>
-  <HomePageSettingsSerialized>{"recentPageViewMode":"grid","samplesViewMode":"list"}</HomePageSettingsSerialized>
+  <HomePageSettings>
+    <string>recentPageViewMode:list</string>
+    <string>samplesViewMode:list</string>
+  </HomePageSettings>
   <NumberFormat>f4</NumberFormat>
   <MaxNumRecentFiles>12</MaxNumRecentFiles>
   <RecentFiles>