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make lastPointerPosition trackable at the drag event (#18069)
make _lastKnownPosition trackable at dragging
adding additional comments regarding fix
delete unnecessary lines
pull/18154/head
AnastassiaP
1 year ago
committed by
GitHub
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1 changed files with
15 additions and
3 deletions
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src/Avalonia.Base/Input/PointerOverPreProcessor.cs
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@ -29,9 +29,21 @@ namespace Avalonia.Input |
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public void OnNext(RawInputEventArgs value) |
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{ |
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if (value is RawPointerEventArgs args |
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&& args.Root == _inputRoot |
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&& value.Device is IPointerDevice pointerDevice) |
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if (value is RawDragEvent dragArgs) |
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{ |
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// When a platform drag operation is in progress, the application does not receive
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// pointer move events until after the drop event. This is a problem because if a
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// popup is shown at the pointer position in the drop event, it will be shown at
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// the position at which the drag was initiated, not the position at which the drop
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// occurred.
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//
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// Solve this by updating the last known pointer position when a drag event occurs.
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_lastKnownPosition = ((Visual)_inputRoot).PointToScreen(dragArgs.Location); |
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} |
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else if (value is RawPointerEventArgs args |
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&& args.Root == _inputRoot |
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&& value.Device is IPointerDevice pointerDevice) |
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{ |
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if (pointerDevice != _lastActivePointerDevice) |
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{ |
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