[Libreoffice-bugs] [Bug 85677] Dragging on a Windows touchscreen highlights instead of scrolling

[bugzilla-daemon at bugs.documentfoundation.org]

https://bugs.documentfoundation.org/show_bug.cgi?id=85677

V Stuart Foote <vstuart.foote at utsa.edu> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
           See Also|                            |https://bugs.documentfounda
                   |                            |tion.org/show_bug.cgi?id=12
                   |                            |4146
                 CC|                            |mikekaganski at hotmail.com,
                   |                            |quikee at gmail.com,
                   |                            |vstuart.foote at utsa.edu

--- Comment #12 from V Stuart Foote <vstuart.foote at utsa.edu> ---
As noted, the touch screen behavior on Windows now selects under touch pointer,
rather than panning x/y (to ranges of scrollbars).

So while two finger swipe vertical scroll, and <shift> two finger swipe
horizontal scroll behaviors are correct with track pad--single finger swipe is
not with touch screen panels. Guess that should probably be expected, they are
different hw driver and os/DE integration.

@Tomaž, Mike K. -- with some generic support for gestures in VCL now for bug
124146, could we possibly support the screen touch scrolling here without the
dev overhead of a full implementation of Windows Touch API (WM_TOUCH,
WM_GESTURE messaging)[1]? 

MSDN suggests it is possible [2], and we seem to use some elements already in
the gdi/salnativewidgets-luna for Windows builds.


=-ref-=
[1]
https://docs.microsoft.com/en-us/windows/desktop/wintouch/windows-touch-portal
[2]
https://docs.microsoft.com/en-us/windows/desktop/wintouch/improving-the-single-finger-panning-experience

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