/* OxygenHub report frame (oxygenhub#127): the hub adds this to a report's

   HTML pages. It tells the page around the frame how tall the report is,

   so the frame grows to fit instead of scrolling, and takes the hub's

   theme (data-theme="dark" or "light" on <html>) for report.css. It sends

   nothing but sizes, and reads nothing but the theme. */

(function () {

  if (window.parent === window) return;

  var root = document.documentElement, last = 0;

  var send = function () {

    var h = Math.ceil(Math.max(root.scrollHeight, document.body ? document.body.scrollHeight : 0));

    if (h && h !== last) {

      last = h;

      window.parent.postMessage({ oxygenhubReport: { height: h } }, "*");

    }

  };

  window.addEventListener("message", function (e) {

    if (e.source !== window.parent) return;

    var t = e.data && e.data.oxygenhubTheme;

    if (t === "dark" || t === "light") root.dataset.theme = t;

  });

  window.addEventListener("load", send);

  if (window.ResizeObserver) new ResizeObserver(send).observe(root);

  else setInterval(send, 500);

  window.parent.postMessage({ oxygenhubReport: { ready: true } }, "*");

})();