}
function relayout(dir: LayoutDirection) {
	if (selectedTile == null) return;
	selectedTile.layoutDirection = dir;

	t.split(t.layoutDirection);

	const dir = t.layoutDirection;
	t.split(dir);

	if (p == null) {

	let i: number;
	if (p?.layoutDirection == dir) {
		// we actually split p, not t
		i = mod(get_tile_index(t) + 1, p.tiles.length);
	} else if (p == null) {

		t = t.tiles[0];

		i = 1;
	} else {
		// we split t for real
		p = t;
		i = 1;

	t = p.tiles[mod(get_tile_index(t) + 1, p.tiles.length)];

	t = p.tiles[i];

registerShortcut(
  "kwi3:splith", "kwi3: Horizontal split", "Meta+V",
  () => relayout(LayoutDirection.Horizontal));
registerShortcut(
  "kwi3:splitv", "kwi3: Vertical split", "Meta+B",
  () => relayout(LayoutDirection.Vertical));