private static bool SetMousePosition(object sender, FrameworkElement attachedToEl)
{
FrameworkElement draggedEl = (FrameworkElement)sender;
FrameworkElement containerEl = GetContainerElement(attachedToEl);
Point mousePositionWithRespectToContainerElement =
Mouse.GetPosition(containerEl);
SetMousePositionWithinContainerElement
(
attachedToEl,
mousePositionWithRespectToContainerElement);
bool isDragAbove = containerEl.Contains(mousePositionWithRespectToContainerElement);
SetIsDragAbove(attachedToEl, isDragAbove);
bool result =
SetWhetherCanDrop(draggedEl, attachedToEl, mousePositionWithRespectToContainerElement);
if (result)
{
IDropPositionChooser dropPositonChooser = GetTheDropPositionChooser(attachedToEl);
if (dropPositonChooser != null)
{
Point dropPoint =
dropPositonChooser.GetPositionWithinDropDontainer
(
draggedEl,
containerEl,
mousePositionWithRespectToContainerElement);
SetDropPosition(attachedToEl, dropPoint);
}
}
return(result);
}
public static void SetTheDropPositionChooser(DependencyObject obj, IDropPositionChooser value)
{
obj.SetValue(TheDropPositionChooserProperty, value);
}
