hugo-theme-hilfe/layouts/shortcodes/img.html

{{- $source := ($.Page.Resources.ByType "image").GetMatch (printf "%s" (.Get "name")) }}
{{- $customAlt := .Get "alt" }}
{{- $customSize := .Get "size" | lower }}
{{- $lazyLoad := default (default true $.Site.Params.GeekdocImageLazyLoading) (.Get "lazy") }}
{{- $data := newScratch }}

{{- with $source }}
  {{- $caption := default .Title $customAlt }}
  {{- $isSVG := (eq .MediaType.SubType "svg") }}

  {{- $origin := .Permalink }}
  {{- if $isSVG }}
    {{- $data.SetInMap "size" "profile" "180" }}
    {{- $data.SetInMap "size" "tiny" "320" }}
    {{- $data.SetInMap "size" "small" "600" }}
    {{- $data.SetInMap "size" "medium" "1200" }}
    {{- $data.SetInMap "size" "large" "1800" }}
  {{- else }}
    {{- $data.SetInMap "size" "profile" (.Fill "180x180 Center").Permalink }}
    {{- $data.SetInMap "size" "tiny" (.Resize "320x").Permalink }}
    {{- $data.SetInMap "size" "small" (.Resize "600x").Permalink }}
    {{- $data.SetInMap "size" "medium" (.Resize "1200x").Permalink }}
    {{- $data.SetInMap "size" "large" (.Resize "1800x").Permalink }}
  {{- end }}


  <div class="flex justify-center">
    <figure
      class="gdoc-markdown__figure
      {{- if eq $customSize "profile" }}{{ print " gdoc-post__figure--round" }}{{ end }}"
    >
      <a class="gdoc-markdown__link--raw" href="{{ .Permalink }}">
        <picture>
          {{- $size := $data.Get "size" }}
          {{- if not $isSVG }}
            <source
              {{- with $customSize }}
                srcset="{{ index $size $customSize }}"
              {{- else }}
                srcset="{{ $size.small }} 600w, {{ $size.medium }} 1200w" sizes="100vw"
              {{- end }}
            />
          {{- end }}
          <img
            {{- if $isSVG }}
              src="{{ $origin }}" width="{{ index $size (default "medium" $customSize) }}"
            {{- else }}
              {{- if $lazyLoad }}{{ print " loading=\"lazy\"" | safeHTMLAttr }}{{- end }}
              {{- if eq $customSize "origin" }}
                src="{{ $origin }}"
              {{- else }}
                src="{{ $size.large }}"
              {{- end }}
              alt="{{ $caption }}"
            {{- end }}
          />
        </picture>
      </a>
      {{- if not (eq $customSize "profile") }}
        {{- with $caption }}
          <figcaption>
            {{ . }}
            {{- with $source.Params.credits }}
              {{ printf " (%s)" . | $.Page.RenderString }}
            {{- end }}
          </figcaption>
        {{- end }}
      {{- end }}
    </figure>
  </div>
{{- end }}