Function waitForStableButtonRect

content/signup-page.js:1840–1876

(button, timeout = 1500)

}

async function waitForStableButtonRect(button, timeout = 1500) {
  let previous = null;
  let stableSamples = 0;
  const start = Date.now();

  while (Date.now() - start < timeout) {
    throwIfStopped();
    const rect = button?.getBoundingClientRect?.();
    if (rect && rect.width > 0 && rect.height > 0) {
      const snapshot = {
        left: rect.left,
        top: rect.top,
        width: rect.width,
        height: rect.height,
      };

      if (
        previous
        && Math.abs(snapshot.left - previous.left) < 1
        && Math.abs(snapshot.top - previous.top) < 1
        && Math.abs(snapshot.width - previous.width) < 1
        && Math.abs(snapshot.height - previous.height) < 1
      ) {
        stableSamples += 1;
        if (stableSamples >= 2) {
          return;
        }
      } else {
        stableSamples = 0;
      }

      previous = snapshot;
    }

    await sleep(80);
  }
}

function getSerializableRect(el) {
  const rect = el.getBoundingClientRect();