Merge branch 'master' into jmacato/missing-skia-api-lottie

src/Avalonia.Input/Gestures.cs

@@ -24,7 +24,7 @@ namespace Avalonia.Input
         public static readonly RoutedEvent<ScrollGestureEventArgs> ScrollGestureEvent =
             RoutedEvent.Register<ScrollGestureEventArgs>(
                 "ScrollGesture", RoutingStrategies.Bubble, typeof(Gestures));
- 
+
         public static readonly RoutedEvent<ScrollGestureEventArgs> ScrollGestureEndedEvent =
             RoutedEvent.Register<ScrollGestureEventArgs>(
                 "ScrollGestureEnded", RoutingStrategies.Bubble, typeof(Gestures));
@@ -89,7 +89,7 @@ namespace Avalonia.Input
                 {
                     if (s_lastPress.TryGetTarget(out var target) && target == e.Source)
                     {
-                        e.Source.RaiseEvent(new RoutedEventArgs(DoubleTappedEvent));
+                        e.Source.RaiseEvent(new TappedEventArgs(DoubleTappedEvent, e));
                     }
                 }
             }
@@ -105,8 +105,14 @@ namespace Avalonia.Input
                 {
                     if (e.InitialPressMouseButton == MouseButton.Left || e.InitialPressMouseButton == MouseButton.Right)
                     {
-                        var et = e.InitialPressMouseButton != MouseButton.Right ? TappedEvent : RightTappedEvent;
-                        e.Source.RaiseEvent(new RoutedEventArgs(et));
+                        if (e.InitialPressMouseButton == MouseButton.Right)
+                        {
+                            e.Source.RaiseEvent(new TappedEventArgs(RightTappedEvent, e));
+                        }
+                        else
+                        {
+                            e.Source.RaiseEvent(new TappedEventArgs(TappedEvent, e));
+                        }
                     }
                 }
             }

src/Avalonia.Input/PointerEventArgs.cs

@@ -107,7 +107,9 @@ namespace Avalonia.Input
         None,
         Left,
         Right,
-        Middle
+        Middle,
+        XButton1,
+        XButton2
     }
 
     public class PointerPressedEventArgs : PointerEventArgs

src/Avalonia.Input/PointerPoint.cs

@@ -90,6 +90,10 @@ namespace Avalonia.Input
                 return MouseButton.Middle;
             if (kind == PointerUpdateKind.RightButtonPressed || kind == PointerUpdateKind.RightButtonReleased)
                 return MouseButton.Right;
+            if (kind == PointerUpdateKind.XButton1Pressed || kind == PointerUpdateKind.XButton1Released)
+                return MouseButton.XButton1;
+            if (kind == PointerUpdateKind.XButton2Pressed || kind == PointerUpdateKind.XButton2Released)
+                return MouseButton.XButton2;
             return MouseButton.None;
         }
     }

src/Avalonia.Input/TappedEventArgs.cs

@@ -0,0 +1,18 @@
+using Avalonia.Interactivity;
+using Avalonia.VisualTree;
+
+namespace Avalonia.Input
+{
+    public class TappedEventArgs : RoutedEventArgs
+    {
+        private readonly PointerEventArgs lastPointerEventArgs;
+
+        public TappedEventArgs(RoutedEvent routedEvent, PointerEventArgs lastPointerEventArgs)
+            : base(routedEvent)
+        {
+            this.lastPointerEventArgs = lastPointerEventArgs;
+        }
+
+        public Point GetPosition(IVisual? relativeTo) => lastPointerEventArgs.GetPosition(relativeTo);
+    }
+}

src/Windows/Avalonia.Win32/WindowImpl.cs

@@ -85,6 +85,7 @@ namespace Avalonia.Win32
         private ExtendClientAreaChromeHints _extendChromeHints = ExtendClientAreaChromeHints.Default;
         private bool _isCloseRequested;
         private bool _shown;
+        private bool _hiddenWindowIsParent;
 
         public WindowImpl()
         {
@@ -483,8 +484,8 @@ namespace Avalonia.Win32
                     IntPtr.Zero,
                     0,
                     0,
-                    requestedClientWidth + (windowRect.Width - clientRect.Width),
-                    requestedClientHeight + (windowRect.Height - clientRect.Height),
+                    requestedClientWidth + (_isClientAreaExtended ? 0 : windowRect.Width - clientRect.Width),
+                    requestedClientHeight + (_isClientAreaExtended ? 0 : windowRect.Height - clientRect.Height),
                     SetWindowPosFlags.SWP_RESIZE);
             }
         }
@@ -571,8 +572,7 @@ namespace Avalonia.Win32
 
         public virtual void Show(bool activate)
         {
-            SetWindowLongPtr(_hwnd, (int)WindowLongParam.GWL_HWNDPARENT, _parent != null ? _parent._hwnd : IntPtr.Zero);
-
+            SetParent(_parent);
             ShowWindow(_showWindowState, activate);
         }
 
@@ -580,8 +580,15 @@ namespace Avalonia.Win32
 
         public void SetParent(IWindowImpl parent)
         {
-            _parent = (WindowImpl)parent;
-            SetWindowLongPtr(_hwnd, (int)WindowLongParam.GWL_HWNDPARENT, _parent._hwnd);
+            var parentHwnd = ((WindowImpl)parent)?._hwnd ?? IntPtr.Zero;
+
+            if (parentHwnd == IntPtr.Zero && !_windowProperties.ShowInTaskbar)
+            {
+                parentHwnd = OffscreenParentWindow.Handle;
+                _hiddenWindowIsParent = true;
+            }
+
+            SetWindowLongPtr(_hwnd, (int)WindowLongParam.GWL_HWNDPARENT, parentHwnd);
         }
 
         public void SetEnabled(bool enable) => EnableWindow(_hwnd, enable);
@@ -883,20 +890,19 @@ namespace Avalonia.Win32
                 _isClientAreaExtended = false;
                 return;
             }
-
-            GetWindowRect(_hwnd, out var rcClient);
+            GetClientRect(_hwnd, out var rcClient);
+            GetWindowRect(_hwnd, out var rcWindow);
 
             // Inform the application of the frame change.
             SetWindowPos(_hwnd,
-                         IntPtr.Zero,
-                         rcClient.left, rcClient.top,
-                         rcClient.Width, rcClient.Height,
-                         SetWindowPosFlags.SWP_FRAMECHANGED);
+                IntPtr.Zero,
+                rcWindow.left, rcWindow.top,
+                rcClient.Width, rcClient.Height,
+                SetWindowPosFlags.SWP_FRAMECHANGED);
 
             if (_isClientAreaExtended && WindowState != WindowState.FullScreen)
             {
                 var margins = UpdateExtendMargins();
-
                 DwmExtendFrameIntoClientArea(_hwnd, ref margins);
             }
             else
@@ -906,6 +912,8 @@ namespace Avalonia.Win32
 
                 _offScreenMargin = new Thickness();
                 _extendedMargins = new Thickness();
+                
+                Resize(new Size(rcWindow.Width/ RenderScaling, rcWindow.Height / RenderScaling));
             }
 
             if(!_isClientAreaExtended || (_extendChromeHints.HasFlagCustom(ExtendClientAreaChromeHints.SystemChrome) &&
@@ -1094,16 +1102,38 @@ namespace Avalonia.Win32
                 if (newProperties.ShowInTaskbar)
                 {
                     exStyle |= WindowStyles.WS_EX_APPWINDOW;
+
+                    if (_hiddenWindowIsParent)
+                    {
+                        // Can't enable the taskbar icon by clearing the parent window unless the window
+                        // is hidden. Hide the window and show it again with the same activation state
+                        // when we've finished. Interestingly it seems to work fine the other way.
+                        var shown = IsWindowVisible(_hwnd);
+                        var activated = GetActiveWindow() == _hwnd;
+
+                        if (shown)
+                            Hide();
+
+                        _hiddenWindowIsParent = false;
+                        SetParent(null);
+
+                        if (shown)
+                            Show(activated);
+                    }
                 }
                 else
                 {
+                    // To hide a non-owned window's taskbar icon we need to parent it to a hidden window.
+                    if (_parent is null)
+                    {
+                        SetWindowLongPtr(_hwnd, (int)WindowLongParam.GWL_HWNDPARENT, OffscreenParentWindow.Handle);
+                        _hiddenWindowIsParent = true;
+                    }
+
                     exStyle &= ~WindowStyles.WS_EX_APPWINDOW;
                 }
 
                 SetExtendedStyle(exStyle);
-
-                // TODO: To hide non-owned window from taskbar we need to parent it to a hidden window.
-                // Otherwise it will still show in the taskbar.
             }
 
             WindowStyles style;