Tweak serialization code and remove ISerializedObject

Configuration/UserConfig.cs

@@ -9,8 +9,10 @@
 using TweetDuck.Data.Serialization;
 
 namespace TweetDuck.Configuration{
-    sealed class UserConfig : ISerializedObject{
-        private static readonly FileSerializer<UserConfig> Serializer = new FileSerializer<UserConfig>();
+    sealed class UserConfig{
+        private static readonly FileSerializer<UserConfig> Serializer = new FileSerializer<UserConfig>{
+            OnReadUnknownProperty = (obj, property, value) => false
+        };
 
         static UserConfig(){
             Serializer.RegisterTypeConverter(typeof(WindowState), WindowState.Converter);
@@ -138,10 +140,6 @@ public UserConfig(string file){ // TODO make private after removing UserConfigLe
             this.file = file;
         }
 
-        bool ISerializedObject.OnReadUnknownProperty(string property, string value){
-            return false;
-        }
-
         public bool Save(){
             try{
                 WindowsUtils.CreateDirectoryForFile(file);

Data/Serialization/FileSerializer.cs

@@ -6,12 +6,15 @@
 using System.Runtime.Serialization;
 
 namespace TweetDuck.Data.Serialization{
-    sealed class FileSerializer<T> where T : ISerializedObject{
+    sealed class FileSerializer<T>{
         private const string NewLineReal = "\r\n";
         private const string NewLineCustom = "\r~\n";
 
         private static readonly ITypeConverter BasicSerializerObj = new BasicTypeConverter();
         
+        public delegate bool OnReadUnknownPropertyHandler(T obj, string property, string value);
+        public OnReadUnknownPropertyHandler OnReadUnknownProperty { get; set; }
+        
         private readonly Dictionary<string, PropertyInfo> props;
         private readonly Dictionary<Type, ITypeConverter> converters;
 
@@ -49,7 +52,7 @@ public void Write(string file, T obj){
 
         public void Read(string file, T obj){
             using(StreamReader reader = new StreamReader(new FileStream(file, FileMode.Open, FileAccess.Read, FileShare.Read))){
-                if (reader.Peek() == 0){
+                if (reader.Peek() <= 1){
                     throw new FormatException("Input appears to be a binary file.");
                 }
 
@@ -75,7 +78,7 @@ public void Read(string file, T obj){
                             throw new SerializationException($"Invalid file format, cannot convert value: {value} (property: {property})");
                         }
                     }
-                    else if (!obj.OnReadUnknownProperty(property, value)){
+                    else if (!(OnReadUnknownProperty?.Invoke(obj, property, value) ?? false)){
                         throw new SerializationException($"Invalid file format, unknown property: {property}+");
                     }
                 }

Data/Serialization/ISerializedObject.cs

@@ -1,5 +0,0 @@
-namespace TweetDuck.Data.Serialization{
-    interface ISerializedObject{
-        bool OnReadUnknownProperty(string property, string value);
-    }
-}

Data/Serialization/SingleTypeConverter.cs

@@ -2,11 +2,8 @@
 
 namespace TweetDuck.Data.Serialization{
     sealed class SingleTypeConverter<T> : ITypeConverter{
-        public delegate string FuncConvertToString<U>(U value);
-        public delegate U FuncConvertToObject<U>(string value);
-
-        public FuncConvertToString<T> ConvertToString { get; set; }
-        public FuncConvertToObject<T> ConvertToObject { get; set; }
+        public Func<T, string> ConvertToString { get; set; }
+        public Func<string, T> ConvertToObject { get; set; }
 
         bool ITypeConverter.TryWriteType(Type type, object value, out string converted){
             try{