Function rulerRect

static/js/transport.js:25–27

()

// "1:00" on the ruler always lands a marker exactly under that tick,
// regardless of how the waves layer below happens to size itself.
function rulerRect() {
  return rulerTime?.getBoundingClientRect() || { left: 0, width: 1 };
}

function loopOverlayParent() {
  return document.querySelector(".waves-column") || rulerTime;