private Interactive GetTarget(IInputElement root, Point local)
{
var target = root.InputHitTest(local)?.GetSelfAndVisualAncestors()?.OfType <Interactive>()?.FirstOrDefault();
if (target != null && DragDrop.GetAllowDrop(target))
{
return(target);
}
return(null);
}
private bool MouseDown(IMouseDevice device, ulong timestamp, IInputElement root, Point p,
PointerPointProperties properties,
KeyModifiers inputModifiers, IInputElement?hitTest)
{
device = device ?? throw new ArgumentNullException(nameof(device));
root = root ?? throw new ArgumentNullException(nameof(root));
var source = _pointer.Captured ?? root.InputHitTest(p);
if (source != null)
{
_pointer.Capture(source);
if (source != null)
{
var settings = AvaloniaLocator.Current.GetService <IPlatformSettings>();
var doubleClickTime = settings?.DoubleClickTime.TotalMilliseconds ?? 500;
var doubleClickSize = settings?.DoubleClickSize ?? new Size(4, 4);
if (!_lastClickRect.Contains(p) || timestamp - _lastClickTime > doubleClickTime)
{
_clickCount = 0;
}
++_clickCount;
_lastClickTime = timestamp;
_lastClickRect = new Rect(p, new Size())
.Inflate(new Thickness(doubleClickSize.Width / 2, doubleClickSize.Height / 2));
_lastMouseDownButton = properties.PointerUpdateKind.GetMouseButton();
var e = new PointerPressedEventArgs(source, _pointer, root, p, timestamp, properties, inputModifiers, _clickCount);
source.RaiseEvent(e);
return(e.Handled);
}
}
return(false);
}
private IInputElement HitTest(IInputElement root, Point p)
{
return(Captured ?? root.InputHitTest(p));
}
private IInputElement HitTest(IInputElement root, Point p)
{
return Captured ?? root.InputHitTest(p);
}
private IInputElement HitTest(IInputElement root, Point p)
{
Contract.Requires <ArgumentNullException>(root != null);
return(Captured ?? root.InputHitTest(p));
}
private IInputElement?HitTest(IInputElement root, Point p)
{
root = root ?? throw new ArgumentNullException(nameof(root));
return(_pointer.Captured ?? root.InputHitTest(p));
}
