tor-browser

The Tor Browser
git clone https://git.dasho.dev/tor-browser.git
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dir-shadow-utils.js (697B)

      1 function html_direction(element) {
      2  let is_ltr = element.matches(":dir(ltr)");
      3  let is_rtl = element.matches(":dir(rtl)");
      4  if (is_ltr == is_rtl) {
      5    return "error";
      6  }
      7  return is_ltr ? "ltr" : "rtl";
      8 }
      9 
     10 function setup_tree(light_tree, shadow_tree) {
     11  let body = document.body;
     12  let old_length = body.childNodes.length;
     13  body.insertAdjacentHTML("beforeend", light_tree.trim());
     14  if (body.childNodes.length != old_length + 1) {
     15    throw "unexpected markup";
     16  }
     17  let result = body.lastChild;
     18  if (shadow_tree) {
     19    let shadow = result.querySelector("#root").attachShadow({mode: "open"});
     20    shadow.innerHTML = shadow_tree.trim();
     21    return [result, shadow];
     22  }
     23  return result;
     24 }