themes/docsy/layouts/partials/navbar.html

{{ $cover := .HasShortcode "blocks/cover" }}
<nav class="js-navbar-scroll navbar navbar-expand  {{ if $cover}} td-navbar-cover {{ end }}flex-column flex-md-row td-navbar">
    <div class="sidebar-button">
      <i class="iconfont icon-menu"></i>
    </div>
    <a class="navbar-brand" href="{{ .Site.Home.RelPermalink }}">
        <span class="navbar-logo">{{ if .Site.Params.ui.navbar_logo }}<img width="130" src="/images/logo.svg" alt="SkyWalking"></span> {{ else }}
        <span class="text-uppercase font-weight-bold">{{ .Site.Title }}</span> {{ end }}
    </a>
    <div class="td-navbar-nav-scroll navbar-nav-wrapper" id="navigation">
        <ul class="navbar-nav mt-lg-0">
            {{ $p := . }} {{ range .Site.Menus.main }}
            {{ if .HasChildren }}
            {{ else }}
            <!--
            <li class="nav-item">
                <a class="nav-link" href="{{ .URL | relLangURL }}">{{ .Name }}</a>
            </li>
            -->
            <li class="nav-item mr-3 mb-lg-0">
				{{ $active := or ($p.IsMenuCurrent "main" .) ($p.HasMenuCurrent "main" .) }}
				{{ with .Page }}
				{{ $active = or $active ( $.IsDescendant .)  }}
				{{ end }}
				{{ $url := urls.Parse .URL }}
				{{ $baseurl := urls.Parse $.Site.Params.Baseurl }}
				<a class="nav-link{{if $active }} active{{end}}" href="{{ with .Page }}{{ .RelPermalink }}{{ else }}{{ .URL | relLangURL }}{{ end }}" {{ if ne $url.Host $baseurl.Host }}target="_blank" {{ end }}><span{{if $active }} class="active"{{end}}>{{ .Name }}</span></a>
			</li>
            {{ end }}
            {{ end }}
            <li class="nav-item mr-3 mb-lg-0">
                <span class="link dropdown blog">
                    <a class="link-name nav-link dropdown-toggle" href="#" role="button" data-toggle="dropdown" aria-haspopup="true" aria-expanded="false">中文资料</a>
                    <div class="dropdown-menu">
                        <a class="dropdown-item" href="/zh/">博客</a>
                        <a class="dropdown-item" href="https://space.bilibili.com/390683219" target="_blank" rel="noopener noreferrer">
                            B站
                        </a>
                        <a class="dropdown-item" href="https://juejin.cn/user/13673577331607" target="_blank" rel="noopener noreferrer">
                            掘金
                        </a>
                    </div>
                </span>
            </li>

            {{ if  .Site.Params.versions }}
			<li class="nav-item dropdown d-none d-lg-block">
				{{ partial "navbar-version-selector.html" . }}
			</li>
			{{ end }}
			{{ if  (gt (len .Site.Home.Translations) 0) }}
			<li class="nav-item dropdown d-none d-lg-block">
				{{ partial "navbar-lang-selector.html" . }}
			</li>
			{{ end }}
        </ul>
    </div>
    <div class="navbar-nav d-none d-lg-block search-input-box">
        {{ $p := . }} {{ range .Site.Menus.main }}
            {{ if .HasChildren }}
            <span class="link dropdown">
                <a class="link-name dropdown-toggle" href="#" role="button" data-toggle="dropdown" aria-haspopup="true" aria-expanded="false">
                    {{ .Name }}
                </a>
                <div class="dropdown-menu">
                    {{ range .Children }}
                    <a class="dropdown-item" href="{{ .URL | relLangURL }}">{{ .Name }}</a> {{ end }}
                </div>
            </span>
            {{ end }}
        {{ end }}
        {{ partial "search-input.html" . }}
    </div>
</nav>