winemac: Add another workaround for bad side effects of CGWarpMouseCursorPosition().
Signed-off-by: Ken Thomases <ken@codeweavers.com> Signed-off-by: Alexandre Julliard <julliard@winehq.org>
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@ -1307,20 +1307,27 @@ - (BOOL) setCursorPosition:(CGPoint)pos
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}
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else
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{
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// Annoyingly, CGWarpMouseCursorPosition() effectively disassociates
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// the mouse from the cursor position for 0.25 seconds. This means
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// that mouse movement during that interval doesn't move the cursor
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// and events carry a constant location (the warped-to position)
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// even though they have delta values. For apps which warp the
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// cursor frequently (like after every mouse move), this makes
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// cursor movement horribly laggy and jerky, as only a fraction of
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// mouse move events have any effect.
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//
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// On some versions of OS X, it's sufficient to forcibly reassociate
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// the mouse and cursor position. On others, it's necessary to set
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// the local events suppression interval to 0 for the warp. That's
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// deprecated, but I'm not aware of any other way. For good
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// measure, we do both.
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CGSetLocalEventsSuppressionInterval(0);
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ret = (CGWarpMouseCursorPosition(pos) == kCGErrorSuccess);
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CGSetLocalEventsSuppressionInterval(0.25);
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if (ret)
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{
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lastSetCursorPositionTime = [[NSProcessInfo processInfo] systemUptime];
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// Annoyingly, CGWarpMouseCursorPosition() effectively disassociates
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// the mouse from the cursor position for 0.25 seconds. This means
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// that mouse movement during that interval doesn't move the cursor
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// and events carry a constant location (the warped-to position)
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// even though they have delta values. This screws us up because
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// the accumulated deltas we send to Wine don't match any eventual
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// absolute position we send (like with a button press). We can
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// work around this by simply forcibly reassociating the mouse and
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// cursor position.
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CGAssociateMouseAndMouseCursorPosition(true);
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}
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}
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