feature: show command running time in logs window (#1253)

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

src/ViewModels/CommandLog.cs

@@ -18,6 +18,12 @@ namespace SourceGit.ViewModels
             get;
         } = DateTime.Now;
 
+        public DateTime EndTime
+        {
+            get;
+            private set;
+        } = DateTime.Now;
+
         public bool IsComplete
         {
             get;
@@ -64,6 +70,8 @@ namespace SourceGit.ViewModels
                 _builder.Clear();
                 _builder = null;
 
+                EndTime = DateTime.Now;
+
                 OnPropertyChanged(nameof(IsComplete));
 
                 if (_onNewLineReceived != null)

src/Views/CommandLogTime.cs

@@ -0,0 +1,80 @@
+using System;
+using System.Threading;
+
+using Avalonia;
+using Avalonia.Controls;
+using Avalonia.Interactivity;
+using Avalonia.Threading;
+
+namespace SourceGit.Views
+{
+    public class CommandLogTime : TextBlock
+    {
+        public static readonly StyledProperty<ViewModels.CommandLog> LogProperty =
+            AvaloniaProperty.Register<CommandLogTime, ViewModels.CommandLog>(nameof(Log), null);
+
+        public ViewModels.CommandLog Log
+        {
+            get => GetValue(LogProperty);
+            set => SetValue(LogProperty, value);
+        }
+
+        protected override Type StyleKeyOverride => typeof(TextBlock);
+
+        protected override void OnUnloaded(RoutedEventArgs e)
+        {
+            base.OnUnloaded(e);
+            StopTimer();
+        }
+
+        protected override void OnPropertyChanged(AvaloniaPropertyChangedEventArgs change)
+        {
+            base.OnPropertyChanged(change);
+
+            if (change.Property == LogProperty)
+            {
+                StopTimer();
+
+                if (change.NewValue is ViewModels.CommandLog log)
+                    SetupCommandLog(log);
+                else
+                    Text = string.Empty;
+            }
+        }
+
+        private void SetupCommandLog(ViewModels.CommandLog log)
+        {
+            Text = GetDisplayText(log);
+            if (log.IsComplete)
+                return;
+
+            _refreshTimer = new Timer(_ =>
+            {
+                Dispatcher.UIThread.Invoke(() =>
+                {
+                    Text = GetDisplayText(log);
+                    if (log.IsComplete)
+                        StopTimer();
+                });
+            }, null, 0, 100);
+        }
+
+        private void StopTimer()
+        {
+            if (_refreshTimer is { })
+            {
+                _refreshTimer.Dispose();
+                _refreshTimer = null;
+            }
+        }
+
+        private string GetDisplayText(ViewModels.CommandLog log)
+        {
+            var endTime = log.IsComplete ? log.EndTime : DateTime.Now;
+            var duration = (endTime - log.StartTime).ToString(@"hh\:mm\:ss\.fff");
+            return $"{log.StartTime:T} ({duration})";
+        }
+
+        private Timer _refreshTimer = null;
+    }
+}

src/Views/ViewLogs.axaml

@@ -77,7 +77,7 @@
               <Grid.ColumnDefinitions>
                 <ColumnDefinition Width="Auto"/>
                 <ColumnDefinition Width="*"/>
-                <ColumnDefinition Width="Auto" SharedSizeGroup="SearchCommitTimeColumn"/>
+                <ColumnDefinition Width="Auto" SharedSizeGroup="TimeColumn"/>
               </Grid.ColumnDefinitions>
               <v:LoadingIcon Grid.Column="0"
                              Width="14" Height="14"
@@ -91,12 +91,12 @@
                          VerticalAlignment="Center"
                          TextTrimming="CharacterEllipsis"/>
               
-              <TextBlock Grid.Column="2"
+              <v:CommandLogTime Grid.Column="2"
-                         Classes="primary"
+                                Classes="primary"
-                         Margin="4,0"
+                                Margin="4,0"
-                         Foreground="{DynamicResource Brush.FG2}"
+                                Foreground="{DynamicResource Brush.FG2}"
-                         Text="{Binding StartTime, StringFormat='{}{0:T}'}"
+                                Log="{Binding}"
-                         HorizontalAlignment="Right" VerticalAlignment="Center"/>
+                                HorizontalAlignment="Right" VerticalAlignment="Center"/>
             </Grid>
           </DataTemplate>
         </ListBox.ItemTemplate>