refactor: disable --all by default while fetching (#1647)

- If there's only one remote or we have selected the remote to fetch changes from, do not show `Fetch all remotes` option
- Disable `--all` by default

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

Author: love-linger

src/ViewModels/Fetch.cs

@@ -10,11 +10,17 @@ public List<Models.Remote> Remotes
             get => _repo.Remotes;
         }
 
+        public bool IsFetchAllRemoteVisible
+        {
+            get;
+            private set;
+        } = true;
+
         public bool FetchAllRemotes
         {
-            get => _fetchAllRemotes;
-            set => SetProperty(ref _fetchAllRemotes, value);
-        }
+            get;
+            set;
+        } = false;
 
         public Models.Remote SelectedRemote
         {
@@ -37,7 +43,7 @@ public bool Force
         public Fetch(Repository repo, Models.Remote preferredRemote = null)
         {
             _repo = repo;
-            _fetchAllRemotes = preferredRemote == null;
+            IsFetchAllRemoteVisible = repo.Remotes.Count > 1 && preferredRemote == null;
 
             if (preferredRemote != null)
             {
@@ -92,6 +98,5 @@ public override async Task<bool> Sure()
         }
 
         private readonly Repository _repo = null;
-        private bool _fetchAllRemotes;
     }
 }

src/Views/BranchTree.axaml.cs

@@ -894,7 +894,7 @@ private ContextMenu CreateContextMenuForRemote(ViewModels.Repository repo, Model
             fetch.Click += (_, e) =>
             {
                 if (repo.CanCreatePopup())
-                    repo.ShowAndStartPopup(new ViewModels.Fetch(repo, remote));
+                    repo.ShowPopup(new ViewModels.Fetch(repo, remote));
                 e.Handled = true;
             };
 

src/Views/Fetch.axaml

@@ -11,7 +11,7 @@
     <TextBlock FontSize="18"
                Classes="bold"
                Text="{DynamicResource Text.Fetch.Title}"/>
-    <Grid Margin="0,16,0,0" RowDefinitions="32,32,32,32" ColumnDefinitions="120,*">
+    <Grid Margin="0,16,0,0" RowDefinitions="32,32,Auto,32" ColumnDefinitions="120,*">
       <TextBlock Grid.Row="0" Grid.Column="0"
                  HorizontalAlignment="Right" VerticalAlignment="Center"
                  Margin="0,0,8,0"
@@ -20,8 +20,13 @@
                 Height="28" Padding="8,0"
                 VerticalAlignment="Center" HorizontalAlignment="Stretch"
                 ItemsSource="{Binding Remotes}"
-                SelectedItem="{Binding SelectedRemote, Mode=TwoWay}"
-                IsEnabled="{Binding !FetchAllRemotes}">
+                SelectedItem="{Binding SelectedRemote, Mode=TwoWay}">
+        <ComboBox.IsEnabled>
+          <MultiBinding Converter="{x:Static BoolConverters.And}">
+            <Binding Path="IsFetchAllRemoteVisible"/>
+            <Binding Path="FetchAllRemotes" Converter="{x:Static BoolConverters.Not}"/>
+          </MultiBinding>
+        </ComboBox.IsEnabled>
         <ComboBox.ItemTemplate>
           <DataTemplate x:DataType="{x:Type m:Remote}">
             <StackPanel Orientation="Horizontal" Height="20" VerticalAlignment="Center">
@@ -38,8 +43,10 @@
                 ToolTip.Tip="--force"/>
 
       <CheckBox Grid.Row="2" Grid.Column="1"
+                Height="32"
                 Content="{DynamicResource Text.Fetch.AllRemotes}"
                 IsChecked="{Binding FetchAllRemotes, Mode=TwoWay}"
+                IsVisible="{Binding IsFetchAllRemoteVisible, Mode=OneWay}"
                 ToolTip.Tip="--all"/>
 
       <CheckBox Grid.Row="3" Grid.Column="1"