static void Reset()
{
_dragData = null;
_dragId = -1;
_waitingToApplyDrag = false;
_dragDelayElapsed = false;
ClearDragDelayedCall();
}
/// <summary>
/// Starts a drag operation on a GUI element.
/// </summary>
/// <param name="dragId">ID for this drag operation (must be the same for both StartDrag and Drag</param>
/// <param name="editorWindow">Reference to the current editor drawing the GUI (used when a Repaint is needed)</param>
/// <param name="draggableList">List containing the dragged item and all other relative draggable items</param>
/// <param name="draggedItemIndex">DraggableList index of the item being dragged</param>
/// <param name="optionalData">Optional data that can be retrieved via the <see cref="optionalDragData"/> static property</param>
public static void StartDrag(int dragId, EditorWindow editorWindow, IList draggableList, int draggedItemIndex, object optionalData = null)
{
if (_dragData != null)
{
return;
}
Reset();
_editor = null;
_editorWindow = editorWindow;
_dragId = dragId;
_dragData = new GUIDragData(draggableList, draggableList[draggedItemIndex], draggedItemIndex, optionalData);
ClearDragDelayedCall();
_dragDelayedCall = DeEditorUtils.DelayedCall(_DragDelay, () => _dragDelayElapsed = true);
}