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Fix scroll events for legacy X11

pull/4125/head
Jumar Macato 6 years ago
parent
commit
752398188b
No known key found for this signature in database GPG Key ID: B19884DAC3A5BF3F
  1. 16
      src/Avalonia.X11/XI2Manager.cs

16
src/Avalonia.X11/XI2Manager.cs

@ -237,6 +237,22 @@ namespace Avalonia.X11
RawPointerEventType.Move, ev.Position, ev.Modifiers));
}
if (ev.Type == XiEventType.XI_ButtonPress && ev.Button >= 4 && ev.Button <= 7 && !ev.Emulated)
{
Vector? scrollDelta = ev.Button switch
{
4 => new Vector(0, 1),
5 => new Vector(0, -1),
6 => new Vector(1, 0),
7 => new Vector(-1, 0),
_ => null
};
if (scrollDelta.HasValue)
client.ScheduleXI2Input(new RawMouseWheelEventArgs(client.MouseDevice, ev.Timestamp,
client.InputRoot, ev.Position, scrollDelta.Value, ev.Modifiers));
}
if (ev.Type == XiEventType.XI_ButtonPress || ev.Type == XiEventType.XI_ButtonRelease)
{
var down = ev.Type == XiEventType.XI_ButtonPress;

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