feat(i18n): 支持绑定表达式作为国际化键值

- 将 I18NBinding 构造函数的 key 参数从 string 类型改为 object 类型
- 添加对 BindingBase 类型键值的支持，允许动态绑定国际化键
- 为 I18NExtension 添加多个构造函数重载以支持 BindingBase 键值
- 更新资源文件添加新的测试键值对
- 修改视图模型属性访问修饰符并添加测试属性
- 在主窗口视图中添加绑定表达式的国际化使用示例

JackCraft.I18N/I18NBinding.cs

@@ -9,7 +9,7 @@ internal class I18NBinding : MultiBinding
     public readonly IValueConverter KeyConverter;
     public readonly IValueConverter ValueConverter;
 
-    public I18NBinding(string key, params dynamic[] values)
+    public I18NBinding(object key, params dynamic[] values)
     {
         Mode = BindingMode.OneWay;
         TargetNullValue = key;
@@ -18,13 +18,26 @@ internal class I18NBinding : MultiBinding
         KeyConverter = new I18NKeyConverter();
         ValueConverter = new I18NValueConverter();
         Bindings.Add(new Binding { Source = I18NConfig.Manager, Path = nameof(I18NConfig.Manager.Culture) });
-        Bindings.Add(new Binding { Source = key });
-        foreach (var value in values)
+
+        switch (key)
         {
-            if (value is BindingBase binding)
+            // 处理 key 参数，可能是字符串或 BindingBase
+            case string keyStr:
+                Bindings.Add(new Binding { Source = keyStr });
+                break;
+            case BindingBase binding:
                 Bindings.Add(binding);
+                break;
+            // 其他情况，作为普通对象处理
+            default:
+                Bindings.Add(new Binding { Source = key });
+                break;
+        }
+
+        foreach (var value in values)
+            if (value is BindingBase valueBinding)
+                Bindings.Add(valueBinding);
             else
                 Bindings.Add(new Binding { Source = value });
-        }
     }
 }

JackCraft.I18N/I18NExtension.cs

@@ -1,9 +1,19 @@
+using Avalonia.Data;
 using Avalonia.Markup.Xaml;
 
 namespace JackCraft.I18N;
 
-public class I18NExtension(string key, params dynamic[] values) : MarkupExtension
+public class I18NExtension : MarkupExtension
 {
+    private readonly object _key;
+    private readonly dynamic[] _values;
+
+    public I18NExtension(string key, params dynamic[] values)
+    {
+        _key = key;
+        _values = values;
+    }
+
     public I18NExtension(string key) : this(key, [])
     {
     }
@@ -31,8 +41,43 @@ public class I18NExtension(string key, params dynamic[] values) : MarkupExtensio
     {
     }
 
+    // 支持 BindingBase 作为 key
+    public I18NExtension(BindingBase key, params dynamic[] values)
+    {
+        _key = key;
+        _values = values;
+    }
+
+    public I18NExtension(BindingBase key) : this(key, [])
+    {
+    }
+
+    public I18NExtension(BindingBase key, dynamic value1) : this(key, [value1])
+    {
+    }
+
+    public I18NExtension(BindingBase key, dynamic value1, dynamic value2) : this(key, [value1, value2])
+    {
+    }
+
+    public I18NExtension(BindingBase key, dynamic value1, dynamic value2, dynamic value3) : this(key,
+        [value1, value2, value3])
+    {
+    }
+
+    public I18NExtension(BindingBase key, dynamic value1, dynamic value2, dynamic value3, dynamic value4) : this(key,
+        [value1, value2, value3, value4])
+    {
+    }
+
+    public I18NExtension(BindingBase key, dynamic value1, dynamic value2, dynamic value3, dynamic value4,
+        dynamic value5) :
+        this(key, [value1, value2, value3, value4, value5])
+    {
+    }
+
     public override object ProvideValue(IServiceProvider serviceProvider)
     {
-        return new I18NBinding(key, values);
+        return new I18NBinding(_key, _values);
     }
 }

TestMvvm/Assets/Resources.resx

@@ -1,7 +1,8 @@
 <?xml version="1.0" encoding="utf-8"?>
 
 <root>
-    <xsd:schema xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:msdata="urn:schemas-microsoft-com:xml-msdata" id="root"
+    <xsd:schema xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:msdata="urn:schemas-microsoft-com:xml-msdata"
+                id="root"
                 xmlns="">
         <xsd:element name="root" msdata:IsDataSet="true">
 
@@ -26,4 +27,7 @@
     <data name="Test1" xml:space="preserve">
         <value>Test1: {0}</value>
     </data>
+    <data name="Test2" xml:space="preserve">
+        <value>Test2Test2</value>
+    </data>
 </root>

TestMvvm/Assets/Resources.zh-hans.resx

@@ -18,4 +18,7 @@
     <data name="Test1" xml:space="preserve">
         <value>测试1: {0}</value>
     </data>
+    <data name="Test2" xml:space="preserve">
+        <value>测试2测试2</value>
+    </data>
 </root>

TestMvvm/ViewModels/MainWindowViewModel.cs

@@ -7,7 +7,8 @@ namespace TestMvvm.ViewModels;
 
 public partial class MainWindowViewModel : ViewModelBase
 {
-    [ObservableProperty] public string? test = Path.GetRandomFileName();
+    [ObservableProperty] private string? _test = Path.GetRandomFileName();
+    [ObservableProperty] private string _test2 = "Test2";
 
     [RelayCommand]
     public void RandomText()

TestMvvm/Views/MainWindow.axaml

@@ -19,6 +19,7 @@
     <StackPanel>
         <TextBlock Text="{Binding Test}" HorizontalAlignment="Center" VerticalAlignment="Center" />
         <TextBlock Text="{i18N:I18N Test1, {Binding Test}}" HorizontalAlignment="Center" VerticalAlignment="Center" />
+        <TextBlock Text="{i18N:I18N {Binding Test2}}" HorizontalAlignment="Center" VerticalAlignment="Center" />
         <Button Content="随机文本"
                 Command="{Binding RandomTextCommand}" />
         <Button Content="切换中文"