hugo-academic/wowchemy/layouts/shortcodes/figure.html

{{/* Figure Shortcode for Wowchemy. */}}
{{/* Load image from page dir falling back to media library at `assets/media/` and then to remote URI. */}}
{{/* Note: Uses `{{-` to unindent HTML so that Figure shortcode can be nested within a `{{%` Markdown shortcode,
     such as Callout, without the HTML being rendered as a Markdown code block. */}}

{{ $destination := .Get "src" }}
{{ $is_remote := strings.HasPrefix $destination "http" }}
{{ $caption := .Get "caption" | default (.Get "title") | default "" }}{{/* Support legacy `title` option. */}}
{{ $zoom := eq (.Get "lightbox" | default "true") "true" }}
{{ $id := anchorize (.Get "id" | default ($caption | plainify)) }}
{{ $alt := .Get "alt" | default ($caption | plainify) }}
{{ $img_class := "" }}
{{ if eq (.Get "theme" | lower) "light" }}{{ $img_class = printf "%s img-light" $img_class }}{{end}}
{{ if eq (.Get "theme" | lower) "dark" }}{{ $img_class = printf "%s img-dark" $img_class }}{{end}}

{{/* Workaround Hugo v0.81 error on Windows when `resources.Get (path.Join "media" <URL>)` */}}
{{- $img := "" -}}
{{- if not $is_remote -}}
  {{- $img = (.Page.Resources.ByType "image").GetMatch $destination -}}
  {{- if not $img -}}
    {{- $img = resources.Get (path.Join "media" $destination) -}}
  {{- end -}}
{{- end -}}

<figure {{ with .Get "class" }}class="{{.}}"{{end}} {{ with $id }}id="figure-{{ . }}"{{ end }}>
  <div class="d-flex justify-content-center">
    <div class="w-100" {{ with .Get "max_width" }}style="max-width: {{.}}"{{end}}>
      {{- if $img -}}
        {{ $isSVG := eq $img.MediaType.SubType "svg" }}
        {{ if $isSVG -}}
          <img alt="{{ $alt }}"
           src="{{ $img.RelPermalink }}"
           loading="lazy"
           {{- if $zoom }} data-zoomable{{end}}
           {{- with .Get "width" }} width="{{.}}"{{end}}
           {{- with .Get "height" }} height="{{.}}"{{end}}
           {{- with $img_class }} class="{{.}}"{{end}} />
        {{- else }}
          {{- $img_lg := $img.Fit "1200x1200" -}}
          {{- $img_md := $img_lg.Fit "760x760" -}}{{/* Match `.docs-article-container` max-width */}}
          {{- $img_sm := $img_md.Fit "400x400" -}}
          {{- $width := (.Get "width") | default $img_md.Width -}}
          {{- $height := (.Get "height") | default $img_md.Height -}}
          <img alt="{{ $alt }}" srcset="
               {{ $img_sm.RelPermalink }} 400w,
               {{ $img_md.RelPermalink }} 760w,
               {{ $img_lg.RelPermalink }} 1200w"
               src="{{ $img_sm.RelPermalink }}"
               width="{{ $width }}"
               height="{{ $height }}"
               loading="lazy"
               {{- if $zoom }} data-zoomable{{end}}
               {{- with $img_class }} class="{{.}}"{{end}} />
        {{- end }}
      {{- else -}}
        <img src="{{ $destination | safeURL }}" alt="{{ $alt }}" loading="lazy" {{ if $zoom }}data-zoomable{{end}}
             {{- with .Get "width" }} width="{{.}}"{{end}} {{- with .Get "height" }} height="{{.}}"{{end}}
             {{- with $img_class }} class="{{.}}"{{end}} />
      {{- end -}}
    </div>
  </div>

  {{- if $caption -}}
    {{/* Localize the figure numbering (if enabled). */}}
    {{- $figure := split (i18n "figure" | default "Figure %d:") "%d" -}}
    <figcaption{{ if eq (.Get "numbered") "true" }} data-pre="{{- trim (index $figure 0) " " -}}&nbsp;" data-post="{{ index $figure 1 }}&nbsp;" class="numbered"{{ end }}>
      {{ $caption | markdownify | emojify }}
    </figcaption>
  {{- end -}}
</figure>