public void OnInitializePotentialDrag(PointerEventData eventData)
{
ExecuteEvents.ExecuteHierarchy(transform.parent.gameObject, eventData, ExecuteEvents.initializePotentialDrag);
m_isReady = false;
Vector2 point;
if (RectTransformUtility.ScreenPointToLocalPointInRectangle(m_rt, eventData.position, eventData.pressEventCamera, out point))
{
Vector2Int coord;
if (m_pointer.GetKeyframeCoordinate(point, false, false, out coord))
{
m_start1 = new Vector2Int(coord.x, coord.y - 1);
m_start2 = new Vector2Int(coord.x, coord.y);
if (BeginSelection != null)
{
TimelineBoxSelectionCancelArgs cancelArgs = new TimelineBoxSelectionCancelArgs(point);
BeginSelection(cancelArgs);
if (!cancelArgs.Cancel)
{
m_isReady = true;
}
}
else
{
m_isReady = true;
}
}
}
}
private void OnBeginBoxSelection(TimelineBoxSelectionCancelArgs args)
{
Vector2Int coord;
if (m_pointer.GetKeyframeCoordinate(args.LocalPoint, true, false, out coord))
{
if (TryGetKeyframeWithinRange(coord, m_pointer.Range, out coord))
{
if (Clip.IsSelected(coord.y, coord.x))
{
args.Cancel = true;
}
}
}
if (!args.Cancel)
{
m_pointer.IsDragInProgress = false;
}
}