fix: begin drag was triggered when double click on the title bar

src/Views/Blame.axaml

@@ -28,7 +28,9 @@
               Background="{DynamicResource Brush.TitleBar}"
               BorderThickness="0,0,0,1" BorderBrush="{DynamicResource Brush.Border2}"
               DoubleTapped="MaximizeOrRestoreWindow"
-              PointerPressed="BeginMoveWindow"/>
+              PointerPressed="BeginMoveWindow"
+              PointerMoved="MoveWindow"
+              PointerReleased="EndMoveWindow"/>
 
       <!-- Caption Buttons (macOS) -->
       <Border Grid.Column="0" IsVisible="{OnPlatform False, macOS=True}">

src/Views/Blame.axaml.cs

@@ -343,7 +343,29 @@ namespace SourceGit.Views
 
         private void BeginMoveWindow(object sender, PointerPressedEventArgs e)
         {
-            BeginMoveDrag(e);
+            if (e.ClickCount != 2)
+                _pressedTitleBar = true;
+        }
+
+        private void MoveWindow(object sender, PointerEventArgs e)
+        {
+            if (!_pressedTitleBar)
+                return;
+
+            var visual = (Visual)e.Source;
+            BeginMoveDrag(new PointerPressedEventArgs(
+                e.Source,
+                e.Pointer,
+                visual,
+                e.GetPosition(visual),
+                e.Timestamp,
+                new PointerPointProperties(RawInputModifiers.None, PointerUpdateKind.LeftButtonPressed),
+                e.KeyModifiers));
+        }
+
+        private void EndMoveWindow(object sender, PointerReleasedEventArgs e)
+        {
+            _pressedTitleBar = false;
         }
 
         protected override void OnClosed(EventArgs e)
@@ -361,5 +383,7 @@ namespace SourceGit.Views
             }
             e.Handled = true;
         }
+
+        private bool _pressedTitleBar = false;
     }
 }

src/Views/BranchCompare.axaml

@@ -28,7 +28,9 @@
               Background="{DynamicResource Brush.TitleBar}"
               BorderThickness="0,0,0,1" BorderBrush="{DynamicResource Brush.Border2}"
               DoubleTapped="MaximizeOrRestoreWindow"
-              PointerPressed="BeginMoveWindow"/>
+              PointerPressed="BeginMoveWindow"
+              PointerMoved="MoveWindow"
+              PointerReleased="EndMoveWindow"/>
 
       <!-- Caption Buttons (macOS) -->
       <Border Grid.Column="0" IsVisible="{OnPlatform False, macOS=True}">

src/Views/BranchCompare.axaml.cs

@@ -1,3 +1,4 @@
+using Avalonia;
 using Avalonia.Controls;
 using Avalonia.Input;
 
@@ -22,7 +23,29 @@ namespace SourceGit.Views
 
         private void BeginMoveWindow(object sender, PointerPressedEventArgs e)
         {
-            BeginMoveDrag(e);
+            if (e.ClickCount != 2)
+                _pressedTitleBar = true;
+        }
+
+        private void MoveWindow(object sender, PointerEventArgs e)
+        {
+            if (!_pressedTitleBar)
+                return;
+
+            var visual = (Visual)e.Source;
+            BeginMoveDrag(new PointerPressedEventArgs(
+                e.Source,
+                e.Pointer,
+                visual,
+                e.GetPosition(visual),
+                e.Timestamp,
+                new PointerPointProperties(RawInputModifiers.None, PointerUpdateKind.LeftButtonPressed),
+                e.KeyModifiers));
+        }
+
+        private void EndMoveWindow(object sender, PointerReleasedEventArgs e)
+        {
+            _pressedTitleBar = false;
         }
 
         private void OnChangeContextRequested(object sender, ContextRequestedEventArgs e)
@@ -43,5 +66,7 @@ namespace SourceGit.Views
 
             e.Handled = true;
         }
+
+        private bool _pressedTitleBar = false;
     }
 }

src/Views/FileHistories.axaml

@@ -26,7 +26,9 @@
               Background="{DynamicResource Brush.TitleBar}"
               BorderThickness="0,0,0,1" BorderBrush="{DynamicResource Brush.Border0}"
               DoubleTapped="MaximizeOrRestoreWindow"
-              PointerPressed="BeginMoveWindow"/>
+              PointerPressed="BeginMoveWindow"
+              PointerMoved="MoveWindow"
+              PointerReleased="EndMoveWindow"/>
 
       <!-- Caption Buttons (macOS) -->
       <Border Grid.Column="0" IsVisible="{OnPlatform False, macOS=True}">

src/Views/FileHistories.axaml.cs

@@ -1,3 +1,4 @@
+using Avalonia;
 using Avalonia.Controls;
 using Avalonia.Input;
 
@@ -22,7 +23,31 @@ namespace SourceGit.Views
 
         private void BeginMoveWindow(object sender, PointerPressedEventArgs e)
         {
-            BeginMoveDrag(e);
+            if (e.ClickCount != 2)
+                _pressedTitleBar = true;
         }
+
+        private void MoveWindow(object sender, PointerEventArgs e)
+        {
+            if (!_pressedTitleBar)
+                return;
+
+            var visual = (Visual)e.Source;
+            BeginMoveDrag(new PointerPressedEventArgs(
+                e.Source,
+                e.Pointer,
+                visual,
+                e.GetPosition(visual),
+                e.Timestamp,
+                new PointerPointProperties(RawInputModifiers.None, PointerUpdateKind.LeftButtonPressed),
+                e.KeyModifiers));
+        }
+
+        private void EndMoveWindow(object sender, PointerReleasedEventArgs e)
+        {
+            _pressedTitleBar = false;
+        }
+
+        private bool _pressedTitleBar = false;
     }
 }

src/Views/Launcher.axaml

@@ -31,7 +31,9 @@
               Background="{DynamicResource Brush.TitleBar}"
               BorderThickness="0,0,0,1" BorderBrush="{DynamicResource Brush.Border0}"
               DoubleTapped="OnTitleBarDoubleTapped"
-              PointerPressed="BeginMoveWindow"/>
+              PointerPressed="BeginMoveWindow"
+              PointerMoved="MoveWindow"
+              PointerReleased="EndMoveWindow"/>
 
       <!-- Caption Buttons (macOS) -->
       <Border Grid.Column="0" VerticalAlignment="Stretch" Margin="2,0,8,3" IsVisible="{OnPlatform False, macOS=True}">
@@ -81,10 +83,9 @@
 
         <ScrollViewer Grid.Column="1"
                       x:Name="launcherTabsScroller"
+                      HorizontalAlignment="Left"
                       HorizontalScrollBarVisibility="Hidden"
                       VerticalScrollBarVisibility="Disabled"
-                      DoubleTapped="OnTitleBarDoubleTapped"
-                      PointerPressed="BeginMoveWindow"
                       PointerWheelChanged="ScrollTabs"
                       ScrollChanged="OnTabsScrollChanged">
           <StackPanel x:Name="launcherTabsBar" Orientation="Horizontal" SizeChanged="UpdateScrollIndicator">

src/Views/Launcher.axaml.cs

@@ -172,7 +172,28 @@ namespace SourceGit.Views
         private void BeginMoveWindow(object sender, PointerPressedEventArgs e)
         {
             if (e.ClickCount != 2)
-                BeginMoveDrag(e);
+                _pressedTitleBar = true;
+        }
+
+        private void MoveWindow(object sender, PointerEventArgs e)
+        {
+            if (!_pressedTitleBar)
+                return;
+
+            var visual = (Visual)e.Source;
+            BeginMoveDrag(new PointerPressedEventArgs(
+                e.Source, 
+                e.Pointer,
+                visual, 
+                e.GetPosition(visual), 
+                e.Timestamp, 
+                new PointerPointProperties(RawInputModifiers.None, PointerUpdateKind.LeftButtonPressed), 
+                e.KeyModifiers));
+        }
+
+        private void EndMoveWindow(object sender, PointerReleasedEventArgs e)
+        {
+            _pressedTitleBar = false;
         }
 
         private void ScrollTabs(object sender, PointerWheelEventArgs e)
@@ -236,26 +257,26 @@ namespace SourceGit.Views
         private void OnPointerPressedTab(object sender, PointerPressedEventArgs e)
         {
             _pressedTab = true;
-            _startDrag = false;
+            _startDragTab = false;
             _pressedTabPosition = e.GetPosition(sender as Border);
         }
 
         private void OnPointerReleasedTab(object sender, PointerReleasedEventArgs e)
         {
             _pressedTab = false;
-            _startDrag = false;
+            _startDragTab = false;
         }
 
         private void OnPointerMovedOverTab(object sender, PointerEventArgs e)
         {
-            if (_pressedTab && !_startDrag && sender is Border border)
+            if (_pressedTab && !_startDragTab && sender is Border border)
             {
                 var delta = e.GetPosition(border) - _pressedTabPosition;
                 var sizeSquired = delta.X * delta.X + delta.Y * delta.Y;
                 if (sizeSquired < 64)
                     return;
 
-                _startDrag = true;
+                _startDragTab = true;
 
                 var data = new DataObject();
                 data.Set("MovedTab", border.DataContext);
@@ -277,7 +298,7 @@ namespace SourceGit.Views
             }
 
             _pressedTab = false;
-            _startDrag = false;
+            _startDragTab = false;
             e.Handled = true;
         }
 
@@ -304,8 +325,9 @@ namespace SourceGit.Views
             OnPopupCancel(sender, e);
         }
 
+        private bool _pressedTitleBar = false;
         private bool _pressedTab = false;
         private Point _pressedTabPosition = new Point();
-        private bool _startDrag = false;
+        private bool _startDragTab = false;
     }
 }