private void UpdateDrag(bool firstFrame = false)
{
if (currentDragEvent == null)
{
return;
}
if (currentDragEvent.lockCursor && currentDragEvent.cursor != null)
{
Cursor.SetCursor(currentDragEvent.cursor.texture, currentDragEvent.cursor.hotSpot, CursorMode.Auto);
currentCursor = currentDragEvent.cursor;
}
currentDragEvent.MousePosition = MousePosition;
currentDragEvent.Modifiers = m_KeyboardState.modifiersThisFrame;
if (firstFrame)
{
RunDragEvent(m_ElementsThisFrame, InputEventType.DragEnter);
currentDragEvent.Update();
}
else
{
RunDragEvent(m_ExitedElements, InputEventType.DragExit);
RunDragEvent(m_EnteredElements, InputEventType.DragEnter);
currentDragEvent.Update();
RunDragEvent(m_ElementsThisFrame,
mouseState.DidMove ? InputEventType.DragMove : InputEventType.DragHover);
}
if (currentDragEvent.IsCanceled)
{
EndDrag(InputEventType.DragCancel);
}
if (currentDragEvent.IsDropped)
{
EndDrag(InputEventType.DragDrop);
}
}