// Simple "copy to clipboard" button for code blocks. // Adds a button to each

 block.
(function () {
  "use strict";

  function addCopyButton(block) {
    var button = document.createElement("button");
    button.className = "copybutton";
    button.title = "Copy";
    button.setAttribute("aria-label", "Copy code to clipboard");
    button.innerHTML =
      '' +
      '';

    button.addEventListener("click", function () {
      var code = block.querySelector("pre").innerText;
      navigator.clipboard.writeText(code).then(
        function () {
          button.classList.add("copied");
          setTimeout(function () {
            button.classList.remove("copied");
          }, 2000);
        },
        function () {
          // Fallback for older browsers
          var ta = document.createElement("textarea");
          ta.value = code;
          ta.style.position = "fixed";
          ta.style.opacity = "0";
          document.body.appendChild(ta);
          ta.focus();
          ta.select();
          document.execCommand("copy");
          document.body.removeChild(ta);
          button.classList.add("copied");
          setTimeout(function () {
            button.classList.remove("copied");
          }, 2000);
        }
      );
    });

    block.style.position = "relative";
    block.appendChild(button);
  }

  document.addEventListener("DOMContentLoaded", function () {
    document.querySelectorAll("div.highlight").forEach(addCopyButton);
  });
})();