enhance: only show Initialize as needed option when it is necessary

Signed-off-by: leo <longshuang@msn.cn>

Author: love-linger

src/ViewModels/UpdateSubmodules.cs

@@ -27,6 +27,12 @@ public bool UpdateAll
             set => SetProperty(ref _updateAll, value);
         }
 
+        public bool IsEnableInitVisible
+        {
+            get;
+            set;
+        } = true;
+
         public bool EnableInit
         {
             get;
@@ -53,12 +59,14 @@ public UpdateSubmodules(Repository repo, Models.Submodule selected)
             {
                 _updateAll = false;
                 SelectedSubmodule = selected;
+                IsEnableInitVisible = selected.Status == Models.SubmoduleStatus.NotInited;
                 EnableInit = selected.Status == Models.SubmoduleStatus.NotInited;
                 HasPreSelectedSubmodule = true;
             }
             else if (repo.Submodules.Count > 0)
             {
                 SelectedSubmodule = repo.Submodules[0];
+                IsEnableInitVisible = true;
                 HasPreSelectedSubmodule = false;
             }
         }

src/Views/UpdateSubmodules.axaml

@@ -11,7 +11,7 @@
     <TextBlock FontSize="18"
                Classes="bold"
                Text="{DynamicResource Text.UpdateSubmodules}"/>
-    <Grid Margin="0,16,0,0" RowDefinitions="32,Auto,32,32,32" ColumnDefinitions="120,*">
+    <Grid Margin="0,16,0,0" RowDefinitions="32,Auto,Auto,32,32" ColumnDefinitions="120,*">
       <TextBlock Grid.Row="0" Grid.Column="0"
                  HorizontalAlignment="Right" VerticalAlignment="Center"
                  Margin="0,0,8,0"
@@ -45,8 +45,10 @@
                 IsVisible="{Binding !HasPreSelectedSubmodule, Mode=OneWay}"/>
 
       <CheckBox Grid.Row="2" Grid.Column="1"
+                Height="32"
                 Content="{DynamicResource Text.UpdateSubmodules.Init}"
                 IsChecked="{Binding EnableInit, Mode=TwoWay}"
+                IsVisible="{Binding IsEnableInitVisible, Mode=OneWay}"
                 ToolTip.Tip="--init"/>
 
       <CheckBox Grid.Row="3" Grid.Column="1"