private void EnsureEffectiveCaptureState()
{
if (_targets.Any())
{
// We have some target, self enable us
if (_actives.TryGetValue(Pointer, out var capture))
{
if (capture != this)
{
throw new InvalidOperationException("There is already another active capture.");
}
}
else
{
// This is what makes this capture active
_actives.Add(Pointer, this);
}
if (_nativeCaptureElement == null)
{
_nativeCaptureElement = _targets.Single().Value.NativeCaptureElement;
try
{
_nativeCaptureElement.CapturePointerNative(Pointer);
}
catch (Exception e)
{
this.Log().Error($"Failed to capture natively pointer {Pointer}.", e);
}
}
}
else
{
// We no longer have any target, cleanup
if (_nativeCaptureElement != null)
{
try
{
_nativeCaptureElement.ReleasePointerNative(Pointer);
}
catch (Exception e)
{
this.Log().Error($"Failed to release native capture of {Pointer}", e);
}
_nativeCaptureElement = null;
}
if (_actives.TryGetValue(Pointer, out var capture) && capture == this)
{
// This is what makes this capture inactive
_actives.Remove(Pointer);
}
}
}
private void CapturePointerNative()
{
try
{
_nativeCaptureElement.CapturePointerNative(Pointer);
}
catch (Exception e)
{
this.Log().Error($"Failed to capture natively pointer {Pointer}.", e);
}
}
