maxtar.github.io/themes/hugo-geekdoc/layouts/partials/menu-bundle-np.html

{{ $current := . }}
{{ $site := .Site }}
{{ $current.Scratch.Set "prev" false }}
{{ $current.Scratch.Set "getNext" false }}

{{ $current.Scratch.Set "nextPage" false }}
{{ $current.Scratch.Set "prevPage" false }}

{{ template "menu-bundle-np" dict "sect" $.Site.Data.menu.main.main "current" $current "site" $site }}

{{ define "menu-bundle-np" }}
  {{ $current := .current }}
  {{ $site := .site }}

  {{ range sort (default (seq 0) .sect) "weight" }}
    {{ $current.Scratch.Set "current" $current }}
    {{ $current.Scratch.Set "site" $site }}

    {{ $ref := default false .ref }}
    {{ if $ref }}
      {{ $site := $current.Scratch.Get "site" }}
      {{ $this := $site.GetPage .ref }}
      {{ $current := $current.Scratch.Get "current" }}

      {{ if reflect.IsMap .name }}
        {{ $current.Scratch.Set "refName" (index .name $site.Language.Lang) }}
      {{ else }}
        {{ $current.Scratch.Set "refName" .name }}
      {{ end }}
      {{ $name := $current.Scratch.Get "refName" }}

      {{ if $current.Scratch.Get "getNext" }}
        {{ $current.Scratch.Set "nextPage" (dict "name" $name "this" $this) }}
        {{ $current.Scratch.Set "getNext" false }}
      {{ end }}

      {{ if eq $current $this }}
        {{ $current.Scratch.Set "prevPage" ($current.Scratch.Get "prev") }}
        {{ $current.Scratch.Set "getNext" true }}
      {{ end }}

      {{ $current.Scratch.Set "prev" (dict "name" $name "this" $this) }}
    {{ end }}

    {{ $sub := default false .sub }}
    {{ if $sub }}
      {{ template "menu-bundle-np" dict "sect" $sub "current" ($current.Scratch.Get "current") "site" ($current.Scratch.Get "site") }}
    {{ end }}
  {{ end }}
{{ end }}

<span class="gdoc-page__nav">
  {{ with ($current.Scratch.Get "prevPage") }}
    <a
      class="gdoc-page__nav--prev flex align-center"
      href="{{ .this.RelPermalink }}"
      title="{{ .name }}"
    >
      <i class="gdoc-icon">gdoc_arrow_left_alt</i>
      {{ .name }}
    </a>
  {{ end }}
</span>
<span class="gdoc-page__nav">
  {{ with ($current.Scratch.Get "nextPage") }}
    <a
      class="gdoc-page__nav--next flex align-center"
      href="{{ .this.RelPermalink }}"
      title="{{ .name }}"
    >
      {{ .name }}
      <i class="gdoc-icon">gdoc_arrow_right_alt</i>
    </a>
  {{ end }}
</span>