Function onSample

examples/commodetto/mini-drag/main.js:140–167

()

if (!Touch) throw new Error("No touch driver configured");

const onSample = () => {
	const points = touch.sample();
	if (!points) return;

	const last = touch.points[0];

	if (points.length === 0) {
		if (last) {
			last.target?.onTouchEnded(last.x, last.y);
			touch.points[0] = undefined;
		}
		return;
	}

	const { x, y } = points[0];

	if (last) {
		last.x = x;
		last.y = y;
		last.target?.onTouchMoved(x, y);
		return;
	}

	const entry = { x, y };
	touch.points[0] = entry;
	entry.target = dragger.contains(x, y) ? dragger : null;
	entry.target?.onTouchBegan(x, y);
};

const touch = new Touch({ onSample })