ux: more flex layout for left siderbar groups

src/ViewModels/BranchTreeNode.cs

@@ -24,7 +24,6 @@ namespace SourceGit.ViewModels
         public string Name { get; set; }
         public BranchTreeNodeType Type { get; set; }
         public object Backend { get; set; }
-        public bool IsExpanded { get; set; }
         public bool IsFiltered { get; set; }
         public List<BranchTreeNode> Children { get; set; } = new List<BranchTreeNode>();
 
@@ -69,6 +68,12 @@ namespace SourceGit.ViewModels
             set => SetProperty(ref _isSelected, value);
         }
 
+        public bool IsExpanded
+        {
+            get => _isExpanded;
+            set => SetProperty(ref _isExpanded, value);
+        }
+
         public string Tooltip
         {
             get
@@ -108,7 +113,9 @@ namespace SourceGit.ViewModels
                     child.UpdateCornerRadius(ref prev);
             }
         }
+
         private bool _isSelected = false;
+        private bool _isExpanded = false;
         private CornerRadius _cornerRadius = new CornerRadius(DEFAULT_CORNER);
 
         public class Builder

src/ViewModels/Repository.cs

@@ -271,6 +271,18 @@ namespace SourceGit.ViewModels
             set => SetProperty(ref _searchedCommits, value);
         }
 
+        public bool IsLocalBranchGroupExpanded
+        {
+            get => _isLocalBranchGroupExpanded;
+            set => SetProperty(ref _isLocalBranchGroupExpanded, value);
+        }
+
+        public bool IsRemoteGroupExpanded
+        {
+            get => _isRemoteGroupExpanded;
+            set => SetProperty(ref _isRemoteGroupExpanded, value);
+        }
+
         public bool IsTagGroupExpanded
         {
             get => _isTagGroupExpanded;
@@ -355,14 +367,7 @@ namespace SourceGit.ViewModels
             _histories = null;
             _workingCopy = null;
             _stashesPage = null;
-            _isSearching = false;
-            _searchCommitFilter = string.Empty;
-
-            _isTagGroupExpanded = false;
-            _isSubmoduleGroupExpanded = false;
-
             _inProgressContext = null;
-            _hasUnsolvedConflicts = false;
 
             _remotes.Clear();
             _branches.Clear();
@@ -1941,6 +1946,8 @@ namespace SourceGit.ViewModels
         private string _searchCommitFilter = string.Empty;
         private List<Models.Commit> _searchedCommits = new List<Models.Commit>();
 
+        private bool _isLocalBranchGroupExpanded = true;
+        private bool _isRemoteGroupExpanded = false;
         private bool _isTagGroupExpanded = false;
         private bool _isSubmoduleGroupExpanded = false;
         private bool _isWorktreeGroupExpanded = false;

src/Views/Repository.axaml

@@ -119,7 +119,7 @@
         </Grid>
         
         <!-- Dashboard -->
-        <Grid Grid.Row="1" Margin="0,0,0,8" RowDefinitions="Auto,Auto,28,Auto,28,*,28,Auto,28,Auto,28,Auto" IsVisible="{Binding !IsSearching}">
+        <Grid Grid.Row="1" Margin="0,0,0,8" RowDefinitions="Auto,Auto,*" IsVisible="{Binding !IsSearching}">
           <!-- Page Switcher for Right Panel -->
           <Border Grid.Row="0" Margin="8,0,4,0" BorderThickness="1" BorderBrush="{DynamicResource Brush.Border2}" CornerRadius="6">
             <Border CornerRadius="6" ClipToBounds="True">
@@ -231,14 +231,17 @@
             </TextBox.InnerRightContent>
           </TextBox>
 
+          <Grid Grid.Row="2" RowDefinitions="28,Auto,28,Auto,28,Auto,28,Auto,28,Auto" LayoutUpdated="OnDashboardLayoutUpdated">
             <!-- Local Branches -->
-          <TextBlock Grid.Row="2" Classes="group_header_label" Text="{DynamicResource Text.Repository.LocalBranches}"/>
-          <TreeView Grid.Row="3"
+            <ToggleButton Grid.Row="0" Classes="group_expander" IsChecked="{Binding IsLocalBranchGroupExpanded, Mode=TwoWay}">
+              <TextBlock Classes="group_header_label" Margin="0" Text="{DynamicResource Text.Repository.LocalBranches}"/>
+            </ToggleButton>
+            <TreeView Grid.Row="1"
                       x:Name="localBranchTree"
-                    MaxHeight="400"
                       Margin="8,0,4,0"
                       SelectionMode="Multiple"
                       ItemsSource="{Binding LocalBranchTrees}"
+                      IsVisible="{Binding IsLocalBranchGroupExpanded}"
                       ScrollViewer.HorizontalScrollBarVisibility="Disabled"
                       ScrollViewer.VerticalScrollBarVisibility="Auto"
                       ContextRequested="OnLocalBranchContextMenuRequested"
@@ -305,17 +308,20 @@
             </TreeView>
 
             <!-- Remotes -->
-          <Grid Grid.Row="4" ColumnDefinitions="*,Auto">
-            <TextBlock Grid.Column="0" Classes="group_header_label" Text="{DynamicResource Text.Repository.Remotes}"/>
+            <ToggleButton Grid.Row="2" Classes="group_expander" IsChecked="{Binding IsRemoteGroupExpanded, Mode=TwoWay}">
+              <Grid ColumnDefinitions="*,Auto">
+                <TextBlock Grid.Column="0" Classes="group_header_label" Margin="0" Text="{DynamicResource Text.Repository.Remotes}"/>
                 <Button Grid.Column="1" Classes="icon_button" Width="14" Margin="8,0" Command="{Binding AddRemote}" ToolTip.Tip="{DynamicResource Text.Repository.Remotes.Add}">
                   <Path Width="12" Height="12" Data="{StaticResource Icons.Remote.Add}"/>
                 </Button>
               </Grid>
-          <TreeView Grid.Row="5"
+            </ToggleButton>
+            <TreeView Grid.Row="3"
                       x:Name="remoteBranchTree"
                       Margin="8,0,4,0"
                       SelectionMode="Multiple"
                       ItemsSource="{Binding RemoteBranchTrees}"
+                      IsVisible="{Binding IsRemoteGroupExpanded}"
                       ScrollViewer.HorizontalScrollBarVisibility="Disabled"
                       ScrollViewer.VerticalScrollBarVisibility="Auto"
                       ContextRequested="OnRemoteBranchContextMenuRequested"
@@ -369,7 +375,7 @@
             </TreeView>
 
             <!-- Tags -->
-          <ToggleButton Grid.Row="6" Classes="group_expander" IsChecked="{Binding IsTagGroupExpanded, Mode=TwoWay}">
+            <ToggleButton Grid.Row="4" Classes="group_expander" IsChecked="{Binding IsTagGroupExpanded, Mode=TwoWay}">
               <Grid ColumnDefinitions="Auto,*,Auto">
                 <TextBlock Grid.Column="0" Classes="group_header_label" Margin="0" Text="{DynamicResource Text.Repository.Tags}"/>
                 <TextBlock Grid.Column="1" Text="{Binding Tags, Converter={x:Static c:ListConverters.ToCount}}" Foreground="{DynamicResource Brush.FG2}" FontWeight="Bold"/>
@@ -378,7 +384,7 @@
                 </Button>
               </Grid>
             </ToggleButton>
-          <DataGrid Grid.Row="7"
+            <DataGrid Grid.Row="5"
                       x:Name="tagsList"
                       Margin="8,0,4,0"
                       Background="Transparent"
@@ -395,8 +401,7 @@
                       VerticalScrollBarVisibility="Auto"
                       IsVisible="{Binding IsTagGroupExpanded, Mode=OneWay}"
                       SelectionChanged="OnTagDataGridSelectionChanged"
-                    ContextRequested="OnTagContextRequested"
-                    PropertyChanged="OnTagPropertyChanged">
+                      ContextRequested="OnTagContextRequested">
               <DataGrid.Styles>
                 <Style Selector="DataGridRow">
                   <Setter Property="CornerRadius" Value="4" />
@@ -458,7 +463,7 @@
             </DataGrid>
 
             <!-- Submodules -->
-          <ToggleButton Grid.Row="8" Classes="group_expander" IsChecked="{Binding IsSubmoduleGroupExpanded, Mode=TwoWay}">
+            <ToggleButton Grid.Row="6" Classes="group_expander" IsChecked="{Binding IsSubmoduleGroupExpanded, Mode=TwoWay}">
               <Grid ColumnDefinitions="Auto,*,Auto,Auto">
                 <TextBlock Grid.Column="0" Classes="group_header_label" Margin="0" Text="{DynamicResource Text.Repository.Submodules}"/>
                 <TextBlock Grid.Column="1" Text="{Binding Submodules, Converter={x:Static c:ListConverters.ToCount}}" Foreground="{DynamicResource Brush.FG2}" FontWeight="Bold"/>
@@ -481,7 +486,8 @@
                 </Button>
               </Grid>
             </ToggleButton>
-          <DataGrid Grid.Row="9"
+            <DataGrid Grid.Row="7"
+                      x:Name="submoduleList"
                       MaxHeight="200"
                       Margin="8,0,4,0"
                       Background="Transparent"
@@ -539,7 +545,7 @@
             </DataGrid>
 
             <!-- Worktrees -->
-          <ToggleButton Grid.Row="10" Classes="group_expander" IsChecked="{Binding IsWorktreeGroupExpanded, Mode=TwoWay}">
+            <ToggleButton Grid.Row="8" Classes="group_expander" IsChecked="{Binding IsWorktreeGroupExpanded, Mode=TwoWay}">
               <Grid ColumnDefinitions="Auto,*,Auto,Auto">
                 <TextBlock Grid.Column="0" Classes="group_header_label" Margin="0" Text="{DynamicResource Text.Repository.Worktrees}"/>
                 <TextBlock Grid.Column="1" Text="{Binding Worktrees, Converter={x:Static c:ListConverters.ToCount}}" Foreground="{DynamicResource Brush.FG2}" FontWeight="Bold"/>
@@ -562,8 +568,8 @@
                 </Button>
               </Grid>
             </ToggleButton>
-          <DataGrid Grid.Row="11"
-                    MaxHeight="200"
+            <DataGrid Grid.Row="9"
+                      x:Name="worktreeList"
                       Margin="8,0,4,0"
                       Background="Transparent"
                       ItemsSource="{Binding Worktrees}"
@@ -628,6 +634,7 @@
               </DataGrid.Columns>
             </DataGrid>
           </Grid>
+        </Grid>
 
         <!-- Commit Search Panel -->
         <Grid Grid.Row="1" RowDefinitions="Auto,32,*" Margin="8,0,4,8" IsVisible="{Binding IsSearching}" PropertyChanged="OnSearchCommitPanelPropertyChanged">

src/Views/Repository.axaml.cs

@@ -7,6 +7,7 @@ using Avalonia.Controls.Primitives;
 using Avalonia.Input;
 using Avalonia.Interactivity;
 using Avalonia.VisualTree;
+using AvaloniaEdit.Utils;
 
 namespace SourceGit.Views
 {
@@ -280,18 +281,6 @@ namespace SourceGit.Views
             e.Handled = true;
         }
 
-        private void OnTagPropertyChanged(object sender, AvaloniaPropertyChangedEventArgs e)
-        {
-            if (e.Property == DataGrid.ItemsSourceProperty && DataContext is ViewModels.Repository vm)
-            {
-                if (vm.VisibleTags == null)
-                    return;
-
-                var desiredHeight = tagsList.RowHeight * vm.VisibleTags.Count;
-                tagsList.Height = Math.Min(200, desiredHeight);
-            }
-        }
-
         private void OnToggleFilter(object sender, RoutedEventArgs e)
         {
             if (sender is ToggleButton toggle)
@@ -379,5 +368,81 @@ namespace SourceGit.Views
                     outs.Add(b);
             }
         }
+
+        private void OnDashboardLayoutUpdated(object sender, EventArgs e) 
+        {
+            var vm = DataContext as ViewModels.Repository;
+            if (vm == null || vm.Settings == null)
+                return;
+
+            var grid = sender as Grid;
+            if (grid == null)
+                return;
+
+            var leftHeight = grid.Bounds.Height - 28.0 * 5;
+            if (vm.IsTagGroupExpanded)
+            {
+                var desiredHeight = Math.Min(200.0, tagsList.RowHeight * vm.VisibleTags.Count);
+                leftHeight -= desiredHeight;
+                if (!tagsList.Height.IsClose(desiredHeight))
+                    tagsList.Height = desiredHeight;
+            }
+
+            if (vm.IsSubmoduleGroupExpanded)
+            {
+                var desiredHeight = Math.Min(200.0, submoduleList.RowHeight * vm.Submodules.Count);
+                leftHeight -= desiredHeight;
+                if (!submoduleList.Height.IsClose(desiredHeight))
+                    submoduleList.Height = desiredHeight;
+            }
+
+            if (vm.IsWorktreeGroupExpanded)
+            {
+                var desiredHeight = Math.Min(200.0, worktreeList.RowHeight * vm.Worktrees.Count);
+                leftHeight -= desiredHeight;
+                if (!worktreeList.Height.IsClose(desiredHeight))
+                    worktreeList.Height = desiredHeight;
+            }
+
+            var desiredLocalBranchHeight = GetTreeRowsCount(vm.LocalBranchTrees) * 24;
+            var desiredRemoteHeight = GetTreeRowsCount(vm.RemoteBranchTrees) * 24;
+
+            if (!vm.IsRemoteGroupExpanded)
+            {
+                if (vm.IsLocalBranchGroupExpanded)
+                {
+                    var localBranchHeight = Math.Min(leftHeight, desiredLocalBranchHeight);
+                    localBranchTree.Height = localBranchHeight;
+                }
+            }
+            else
+            {
+                if (vm.IsLocalBranchGroupExpanded)
+                {
+                    var localBranchHeight = Math.Min(leftHeight * 0.5, desiredLocalBranchHeight);
+                    if (!localBranchTree.Height.IsClose(localBranchHeight))
+                        localBranchTree.Height = localBranchHeight;
+
+                    leftHeight -= localBranchHeight;
+                }
+
+                var remoteHeight = Math.Min(leftHeight, desiredRemoteHeight);
+                if (!remoteBranchTree.Height.IsClose(remoteHeight))
+                    remoteBranchTree.Height = remoteHeight;
+            }
+        }
+
+        private int GetTreeRowsCount(List<ViewModels.BranchTreeNode> nodes)
+        {
+            int count = nodes.Count;
+
+            foreach (var node in nodes)
+            {
+                if (!node.IsBranch && node.IsExpanded)
+                    count += GetTreeRowsCount(node.Children);
+            }
+                
+            return count;
+        }
     }
 }