Review Request 127301: Disable window move on Wayland due to lack of Qt features and some cleanup

[Martin Gräßlin]

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https://git.reviewboard.kde.org/r/127301/
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Review request for Plasma and Hugo Pereira Da Costa.


Repository: breeze


Description
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A call to QX11Info::isPlatformX11() is a string comparison each time.
So let's better have the value cached, it won't change at runtime.

[kstyle] Add static bool Helper::isWayland()

Just like isX11.

[kstyle] Disable window move on Wayland

Unfortunately we cannot support moving windows from the style on Wayland
(yet). To move a window we need the (Xdg)ShellSurface and the wl_seat.
Through the integration plugin we can get the ShellSurface, but not the
seat. Thus we cannot invoke the feature through KWayland.

We either need to extend the native interface and/or extend QWindow to
expose a startSystemMove (QPlatformWindow already supports a
startSystemResize).


Diffs
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  kstyle/breezehelper.h 16344687463d2955b51d9244b7c8990e88a28b5f 
  kstyle/breezehelper.cpp 1c35f25fd19060fc74d052493f1303a74099b308 
  kstyle/breezewindowmanager.cpp a2d5bca223722ed658aea0c7ba6ea1ffc0817c7d 

Diff: https://git.reviewboard.kde.org/r/127301/diff/


Testing
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Thanks,

Martin Gräßlin

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