This commit adds a DND_INSERT_NEXT action option for drag-and-drop, allows for selecting it through the --drag-and-drop=insert-next option, and adds the necessary plumbing to make that happen when something is dragged onto the player.
This commit adds a DND_INSERT_NEXT action option for drag-and-drop, allows for selecting it through the --drag-and-drop=insert-next option, and adds the necessary plumbing to make that happen when something is dragged onto the player.