Avalonia: Fix main window not draggable by touch#4869
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Gabriel Dufresne (GabrielDuf) merged 2 commits intoJun 3, 2026
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Pull request overview
Improves Avalonia main-window title bar dragging on Windows for touch/pen users by introducing a manual drag implementation (workaround for BeginMoveDrag limitations with non-mouse pointers), addressing issue #4866.
Changes:
- Added manual drag state + pointer event handlers in
MainWindow.axaml.csfor touch/pen on Windows. - Updated title bar pointer-press logic to keep native OS drag for mouse (preserving Aero Snap) while using manual dragging for touch/pen.
- Wired up additional pointer events on the title bar drag area in XAML to support the new drag lifecycle.
Reviewed changes
Copilot reviewed 2 out of 2 changed files in this pull request and generated 2 comments.
| File | Description |
|---|---|
| src/UniGetUI.Avalonia/Views/MainWindow.axaml.cs | Adds touch/pen-specific manual window dragging logic and related pointer event handlers. |
| src/UniGetUI.Avalonia/Views/MainWindow.axaml | Names the title bar drag area and hooks pointer moved/released/capture-lost events to drive manual dragging. |
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Marc-André Moreau (mamoreau-devolutions)
approved these changes
Jun 3, 2026
Gabriel Dufresne (GabrielDuf)
deleted the
fix/4866-touchscreen-window-drag
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This pull request enhances the window dragging experience for touch and pen users on Windows by implementing a custom, manual drag behavior for the title bar. This change addresses platform-specific limitations and ensures consistent behavior across pointer types. #4866
Title Bar Dragging Improvements:
PointerMoved,PointerReleased,PointerCaptureLost) to theTitleBarDragAreainMainWindow.axamlto support manual drag logic for touch and pen input._titleBarDragPointer,_titleBarDragOrigin) and logic to track and manage manual drag operations inMainWindow.axaml.cs.TitleBar_PointerPressedto distinguish between mouse and touch/pen input, using manual drag only for touch/pen on Windows. Mouse input continues to use the native drag behavior.TitleBar_PointerMoved,TitleBar_PointerReleased, andTitleBar_PointerCaptureLostmethods to handle moving the window, releasing the drag, and cleaning up drag state for touch/pen scenarios.These changes improve usability for touch and pen users, especially on Windows, by providing a smooth and reliable window dragging experience.