First Commit

ViewModels/FileEditorViewModel.cs

@@ -0,0 +1,65 @@
+using System;
+using System.Collections.ObjectModel;
+using System.IO;
+using System.Threading.Tasks;
+using Avalonia;
+using Avalonia.Controls;
+using Avalonia.Platform.Storage;
+
+using CommunityToolkit.Mvvm.ComponentModel;
+using CommunityToolkit.Mvvm.Input;
+using CommunityToolkit.Mvvm.Messaging;
+using CrossLangDevStudio.Messages;
+using CrossLangDevStudio.Views;
+
+namespace CrossLangDevStudio.ViewModels;
+
+public partial class FileEditorViewModel : ViewModelBase, ISavable
+{
+    TabItemViewModel tab;
+    public string FilePath { get; }
+    bool _modified = false;
+    private bool Modified
+    {
+        get => _modified;
+        set
+        {
+            _modified = value;
+
+            if (value)
+            {
+                tab.Header = $"{Path.GetFileName(FilePath)}*";
+            }
+            else
+            {
+                tab.Header = Path.GetFileName(FilePath);
+            }
+        }
+    }
+    
+    private string _text = "";
+
+    public string Text
+    {
+        get => _text;
+        set
+        {
+
+            Modified = true;
+            this.SetProperty(ref _text, value, nameof(Text));
+        }
+    }
+
+    public FileEditorViewModel(string path,TabItemViewModel tab)
+    {
+        this.tab = tab;
+        FilePath = path;
+        _text = File.ReadAllText(path);
+    }
+
+    public void Save()
+    {
+        File.WriteAllText(FilePath, Text);
+        Modified = false;
+    }
+}