public void UpdateMouseLocation(Point dragPosition)
{
var floatingWindowModel = _floatingWindow.Model as LayoutFloatingWindow;
var newHost = _overlayWindowHosts.FirstOrDefault(oh => oh.HitTest(dragPosition));
if (_currentHost != null || _currentHost != newHost)
{
//is mouse still inside current overlay window host?
if ((_currentHost != null && !_currentHost.HitTest(dragPosition)) ||
_currentHost != newHost)
{
//esit drop target
if (_currentDropTarget != null)
{
_currentWindow.DragLeave(_currentDropTarget);
}
_currentDropTarget = null;
//exit area
_currentWindowAreas.ForEach(a =>
_currentWindow.DragLeave(a));
_currentWindowAreas.Clear();
//hide current overlay window
if (_currentWindow != null)
{
_currentWindow.DragLeave(_floatingWindow);
}
if (_currentHost != null)
{
_currentHost.HideOverlayWindow();
}
_currentHost = null;
}
if (_currentHost != newHost)
{
_currentHost = newHost;
_currentWindow = _currentHost.ShowOverlayWindow(_floatingWindow);
_currentWindow.DragEnter(_floatingWindow);
}
}
if (_currentHost == null)
{
return;
}
if (_currentDropTarget != null &&
!_currentDropTarget.HitTest(dragPosition))
{
_currentWindow.DragLeave(_currentDropTarget);
_currentDropTarget = null;
}
List <IDropArea> areasToRemove = new List <IDropArea>();
_currentWindowAreas.ForEach(a =>
{
//is mouse still inside this area?
if (!a.DetectionRect.Contains(dragPosition))
{
_currentWindow.DragLeave(a);
areasToRemove.Add(a);
}
});
areasToRemove.ForEach(a =>
_currentWindowAreas.Remove(a));
var areasToAdd =
_currentHost.GetDropAreas(_floatingWindow).Where(cw => !_currentWindowAreas.Contains(cw) && cw.DetectionRect.Contains(dragPosition)).ToList();
_currentWindowAreas.AddRange(areasToAdd);
areasToAdd.ForEach(a =>
_currentWindow.DragEnter(a));
if (_currentDropTarget == null)
{
_currentWindowAreas.ForEach(wa =>
{
if (_currentDropTarget != null)
{
return;
}
_currentDropTarget = _currentWindow.GetTargets().FirstOrDefault(dt => dt.HitTest(dragPosition));
if (_currentDropTarget != null)
{
_currentWindow.DragEnter(_currentDropTarget);
return;
}
});
}
}
