PointerMovedEvent and PointerReleasedEvent do not trigger after mouse leaves the title bar with pressed

[huangliu]

Describe the bug

I add a contorl to the titlebar, and add Handlers PointerPressedEvent/PointerMovedEvent/PointerReleasedEvent/PointerCaptureLostEvent. When I press/move/release mouse left button over the control, all events trigger as expected.

If I just press mouse and move out the titlebar, PointerMovedEvent will not trigger, unless I release the left button. PointerReleasedEvent does not trigger at this point, and e.GetCurrentPoint(this).Properties.IsLeftButtonPressed still return true in PointerMovedEvent event, until I press left button and release next time.

But If I remove property OSXThickTitleBar from ExtendClientAreaChromeHints, everything works well.

Here is a demo video:

iShot_2024-05-12_01.01.30.mp4

Here is the other demo which works perfect when I just remove OSXThickTitleBar property from ExtendClientAreaChromeHints:

iShot_2024-05-12_01.27.21.mp4

To Reproduce

1. Set window properties ExtendClientAreaToDecorationsHint="True" / ExtendClientAreaTitleBarHeightHint="38" / ExtendClientAreaChromeHints="Default,OSXThickTitleBar"
2. Add a control to the top, use the following code to listen for events

this.AddHandler(PointerPressedEvent, this.OnPointerPressed, RoutingStrategies.Tunnel);
this.AddHandler(PointerMovedEvent, this.OnPointerMove, RoutingStrategies.Tunnel);
this.AddHandler(PointerReleasedEvent, this.OnPointerReleased, RoutingStrategies.Tunnel);
this.AddHandler(PointerCaptureLostEvent, this.OnPointerCaptureLost, RoutingStrategies.Tunnel);

3. Press the control with mouse left button, and move out from titlebar, but don't leave the window.

Expected behavior

No response

Avalonia version

11.0.10

OS

macOS

Additional context

No response

[huangliu]

After move out of titlebar with mouse left button hold on, no more PointerMoved event triggered, if OSXThickTitleBar is set.