<!doctype html>
<html lang="{{ language }}" class="sidebar-visible no-js {{ default_theme }}">
  <head>
    <!-- Book generated using mdBook -->
    <meta charset="UTF-8" />
    <title>{{ title }}</title>
    {{#if is_print }}
    <meta name="robots" content="noindex" />
    {{/if}}
    {{#if base_url}}
    <base href="{{ base_url }}" />
    {{/if}}

    <!-- Custom HTML head -->
    {{> head}}

    <meta name="description" content="{{ description }}" />
    <meta name="viewport" content="width=device-width, initial-scale=1" />
    <meta name="theme-color" content="#ffffff" />

    {{#if favicon_svg}}
    <link rel="icon" href="{{ path_to_root }}favicon.svg" />
    {{/if}}
    {{#if favicon_png}}
    <link rel="shortcut icon" href="{{ path_to_root }}favicon.png" />
    {{/if}}
    <link rel="stylesheet" href="{{ path_to_root }}css/variables.css" />
    <link rel="stylesheet" href="{{ path_to_root }}css/general.css" />
    <link rel="stylesheet" href="{{ path_to_root }}css/chrome.css" />
    {{#if print_enable}}
    <link
      rel="stylesheet"
      href="{{ path_to_root }}css/print.css"
      media="print"
    />
    {{/if}}

    <!-- Fonts -->
    <link
      rel="stylesheet"
      href="{{ path_to_root }}FontAwesome/css/font-awesome.css"
    />
    {{#if copy_fonts}}
    <link rel="stylesheet" href="{{ path_to_root }}fonts/fonts.css" />
    {{/if}}

    <!-- Highlight.js Stylesheets -->
    <link rel="stylesheet" href="{{ path_to_root }}highlight.css" />
    <link rel="stylesheet" href="{{ path_to_root }}tomorrow-night.css" />
    <link rel="stylesheet" href="{{ path_to_root }}ayu-highlight.css" />

    <!-- Custom theme stylesheets -->
    {{#each additional_css}}
    <link rel="stylesheet" href="{{ ../path_to_root }}{{ this }}" />
    {{/each}}

    {{#if mathjax_support}}
    <!-- MathJax -->
    <script
      async
      src="https://cdnjs.cloudflare.com/ajax/libs/mathjax/2.7.1/MathJax.js?config=TeX-AMS-MML_HTMLorMML"
    ></script>
    {{/if}}
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      <!-- Provide site root to javascript -->
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        var path_to_root = "{{ path_to_root }}";
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          theme = default_theme;
        }
        var html = document.querySelector("html");
        html.classList.remove("no-js");
        html.classList.remove("{{ default_theme }}");
        html.classList.add(theme);
        html.classList.add("js");
      </script>

      <!-- Hide / unhide sidebar before it is displayed -->
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        html.classList.add("sidebar-" + sidebar);
      </script>

      <nav id="sidebar" class="sidebar" aria-label="Table of contents">
        <div class="sidebar-scrollbox">{{#toc}}{{/toc}}</div>
        <div id="sidebar-resize-handle" class="sidebar-resize-handle"></div>
      </nav>

      <div id="page-wrapper" class="page-wrapper">
        <div class="page">
          {{> header}}
          <div id="menu-bar-hover-placeholder"></div>
          <div id="menu-bar" class="menu-bar sticky bordered">
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              <button
                id="sidebar-toggle"
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                title="Toggle Table of Contents"
                aria-label="Toggle Table of Contents"
                aria-controls="sidebar"
              >
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              </button>
              <button
                id="theme-toggle"
                class="icon-button"
                type="button"
                title="Change theme"
                aria-label="Change theme"
                aria-haspopup="true"
                aria-expanded="false"
                aria-controls="theme-list"
              >
                <i class="fa fa-paint-brush"></i>
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              <ul
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                class="theme-popup"
                aria-label="Themes"
                role="menu"
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                <li role="none">
                  <button role="menuitem" class="theme" id="light">
                    Light
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                </li>
                <li role="none">
                  <button role="menuitem" class="theme" id="rust">Rust</button>
                </li>
                <li role="none">
                  <button role="menuitem" class="theme" id="coal">Coal</button>
                </li>
                <li role="none">
                  <button role="menuitem" class="theme" id="navy">Navy</button>
                </li>
                <li role="none">
                  <button role="menuitem" class="theme" id="ayu">Ayu</button>
                </li>
              </ul>
              {{#if search_enabled}}
              <button
                id="search-toggle"
                class="icon-button"
                type="button"
                title="Search. (Shortkey: s)"
                aria-label="Toggle Searchbar"
                aria-expanded="false"
                aria-keyshortcuts="S"
                aria-controls="searchbar"
              >
                <i class="fa fa-search"></i>
              </button>
              {{/if}}
            </div>

            <h1 class="menu-title">{{ book_title }}</h1>

            <div class="right-buttons">
              <button
                id="language-toggle"
                class="icon-button"
                type="button"
                title="Change language"
                aria-label="Change language"
                aria-haspopup="true"
                aria-expanded="false"
                aria-controls="language-list"
              >
                <i class="fa fa-globe"></i>
              </button>
              <ul
                id="language-list"
                class="theme-popup"
                aria-label="Languages"
                role="menu"
              >
                <li role="none">
                  <button role="menuitem" class="theme">
                    <a id="en">English</a>
                  </button>
                </li>
                <li role="none">
                  <button role="menuitem" class="theme">
                    <a id="zh-CN">Simplified Chinese (简体中文)</a>
                  </button>
                </li>
              </ul>

              <script>
                let langToggle = document.getElementById("language-toggle");
                let langList = document.getElementById("language-list");
                langToggle.addEventListener("click", (event) => {
                    langList.style.display = langList.style.display == "block" ? "none" : "block";
                });
                let selectedLang = document.getElementById("{{ language }}");
                if (selectedLang) {
                    selectedLang.parentNode.classList.add("theme-selected");
                }

                // The path to the root, taking the current
                // language into account.
                {{#if (eq language "en")}}
                let full_path_to_root = "{{ path_to_root }}";
                {{else}}
                let full_path_to_root = "{{ path_to_root }}../";
                {{/if}}
                // The page path (mdbook only gives us
                // access to the path to the Markdown file).
                let path = "{{ path }}".replace(/\.md$/, ".html");
                for (let lang of langList.querySelectorAll("a")) {
                    if (lang.id == "en") {
                        lang.href = `${full_path_to_root}${path}`;
                    } else {
                        lang.href = `${full_path_to_root}${lang.id}/${path}`;
                    }
                }
              </script>

              {{#if print_enable}}
              <a
                href="{{ path_to_root }}print.html"
                title="Print this book"
                aria-label="Print this book"
              >
                <i id="print-button" class="fa fa-print"></i>
              </a>
              {{/if}}
              {{#if git_repository_url}}
              <a
                href="{{ git_repository_url }}"
                title="Git repository"
                aria-label="Git repository"
              >
                <i
                  id="git-repository-button"
                  class="fa {{ git_repository_icon }}"
                ></i>
              </a>
              {{/if}}
              {{#if git_repository_edit_url}}
              <a
                href="{{ git_repository_edit_url }}"
                title="Suggest an edit"
                aria-label="Suggest an edit"
              >
                <i id="git-edit-button" class="fa fa-edit"></i>
              </a>
              {{/if}}
            </div>
          </div>

          {{#if search_enabled}}
          <div id="search-wrapper" class="hidden">
            <form id="searchbar-outer" class="searchbar-outer">
              <input
                type="search"
                id="searchbar"
                name="searchbar"
                placeholder="Search this book ..."
                aria-controls="searchresults-outer"
                aria-describedby="searchresults-header"
              />
            </form>
            <div id="searchresults-outer" class="searchresults-outer hidden">
              <div id="searchresults-header" class="searchresults-header"></div>
              <ul id="searchresults"></ul>
            </div>
          </div>
          {{/if}}

          <!-- Apply ARIA attributes after the sidebar and the sidebar toggle button are added to the DOM -->
          <script>
            document
              .getElementById("sidebar-toggle")
              .setAttribute("aria-expanded", sidebar === "visible");
            document
              .getElementById("sidebar")
              .setAttribute("aria-hidden", sidebar !== "visible");
            Array.from(document.querySelectorAll("#sidebar a")).forEach(
              function (link) {
                link.setAttribute("tabIndex", sidebar === "visible" ? 0 : -1);
              },
            );
          </script>

          <div id="content" class="content">
            <main>
              {{{ content }}}
<!-- 
              <script
                src="https://giscus.app/client.js"
                data-repo="radxa-pkg/rsdk"
                data-repo-id=""
                data-category="Documents Comment"
                data-category-id="DIC_kwDOHK1yos4Cd6ac"
                data-mapping="pathname"
                data-strict="1"
                data-reactions-enabled="1"
                data-emit-metadata="0"
                data-input-position="top"
                data-theme="preferred_color_scheme"
                data-lang="en"
                data-loading="lazy"
                crossorigin="anonymous"
                async
              ></script>
 -->
            </main>

            <nav class="nav-wrapper" aria-label="Page navigation">
              <!-- Mobile navigation buttons -->
              {{#previous}}
              <a
                rel="prev"
                href="{{ path_to_root }}{{ link }}"
                class="mobile-nav-chapters previous"
                title="Previous chapter"
                aria-label="Previous chapter"
                aria-keyshortcuts="Left"
              >
                <i class="fa fa-angle-left"></i>
              </a>
              {{/previous}}

              {{#next}}
              <a
                rel="next"
                href="{{ path_to_root }}{{ link }}"
                class="mobile-nav-chapters next"
                title="Next chapter"
                aria-label="Next chapter"
                aria-keyshortcuts="Right"
              >
                <i class="fa fa-angle-right"></i>
              </a>
              {{/next}}

              <div style="clear: both"></div>
            </nav>
          </div>
        </div>

        <nav class="nav-wide-wrapper" aria-label="Page navigation">
          {{#previous}}
          <a
            rel="prev"
            href="{{ path_to_root }}{{ link }}"
            class="nav-chapters previous"
            title="Previous chapter"
            aria-label="Previous chapter"
            aria-keyshortcuts="Left"
          >
            <i class="fa fa-angle-left"></i>
          </a>
          {{/previous}}

          {{#next}}
          <a
            rel="next"
            href="{{ path_to_root }}{{ link }}"
            class="nav-chapters next"
            title="Next chapter"
            aria-label="Next chapter"
            aria-keyshortcuts="Right"
          >
            <i class="fa fa-angle-right"></i>
          </a>
          {{/next}}
        </nav>
      </div>

      {{#if live_reload_endpoint}}
      <!-- Livereload script (if served using the cli tool) -->
      <script>
        const wsProtocol = location.protocol === "https:" ? "wss:" : "ws:";
        const wsAddress =
          wsProtocol +
          "//" +
          location.host +
          "/" +
          "{{{live_reload_endpoint}}}";
        const socket = new WebSocket(wsAddress);
        socket.onmessage = function (event) {
          if (event.data === "reload") {
            socket.close();
            location.reload();
          }
        };

        window.onbeforeunload = function () {
          socket.close();
        };
      </script>
      {{/if}}

      {{#if google_analytics}}
      <!-- Google Analytics Tag -->
      <script>
        var localAddrs = ["localhost", "127.0.0.1", ""];

        // make sure we don't activate google analytics if the developer is
        // inspecting the book locally...
        if (localAddrs.indexOf(document.location.hostname) === -1) {
          (function (i, s, o, g, r, a, m) {
            i["GoogleAnalyticsObject"] = r;
            (i[r] =
              i[r] ||
              function () {
                (i[r].q = i[r].q || []).push(arguments);
              }),
              (i[r].l = 1 * new Date());
            (a = s.createElement(o)), (m = s.getElementsByTagName(o)[0]);
            a.async = 1;
            a.src = g;
            m.parentNode.insertBefore(a, m);
          })(
            window,
            document,
            "script",
            "https://www.google-analytics.com/analytics.js",
            "ga",
          );

          ga("create", "{{google_analytics}}", "auto");
          ga("send", "pageview");
        }
      </script>
      {{/if}}

      {{#if playground_line_numbers}}
      <script>
        window.playground_line_numbers = true;
      </script>
      {{/if}}

      {{#if playground_copyable}}
      <script>
        window.playground_copyable = true;
      </script>
      {{/if}}

      {{#if playground_js}}
      <script src="{{ path_to_root }}ace.js"></script>
      <script src="{{ path_to_root }}editor.js"></script>
      <script src="{{ path_to_root }}mode-rust.js"></script>
      <script src="{{ path_to_root }}theme-dawn.js"></script>
      <script src="{{ path_to_root }}theme-tomorrow_night.js"></script>
      {{/if}}

      {{#if search_js}}
      <script src="{{ path_to_root }}elasticlunr.min.js"></script>
      <script src="{{ path_to_root }}mark.min.js"></script>
      <script src="{{ path_to_root }}searcher.js"></script>
      {{/if}}

      <script src="{{ path_to_root }}clipboard.min.js"></script>
      <script src="{{ path_to_root }}highlight.js"></script>
      <script src="{{ path_to_root }}book.js"></script>

      <!-- Custom JS scripts -->
      {{#each additional_js}}
      <script src="{{ ../path_to_root }}{{ this }}"></script>
      {{/each}}

      {{#if is_print}}
      {{#if mathjax_support}}
      <script>
        window.addEventListener("load", function () {
          MathJax.Hub.Register.StartupHook("End", function () {
            window.setTimeout(window.print, 100);
          });
        });
      </script>
      {{else}}
      <script>
        window.addEventListener("load", function () {
          window.setTimeout(window.print, 100);
        });
      </script>
      {{/if}}
      {{/if}}
    </div>
  </body>
</html>
