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

{{/* Gallery Shortcode for Wowchemy. */}}
{{/* Load gallery images from page dir. */}}

{{/* Get album folder or default to `gallery/`. */}}
{{ $album := (.Get "album") | default "gallery" }}

{{/* Set image path and page bundle that images are associated with. */}}
{{ $album_path := "" }}
{{ $resource_page := "" }}
{{ if eq .Page.Parent.Type "widget_page" }}
  {{ $album_path = printf "%s/%s/*" (path.Base (path.Split .Page.Path).Dir) $album }}
  {{ $resource_page = $.Page.Parent }}
{{ else }}
  {{ $album_path = printf "%s/*" $album }}
  {{ $resource_page = $.Page }}
{{ end }}

<div class="gallery">

  {{/* Attempt to automatically load gallery images from page bundle */}}
  {{ $images := ($resource_page.Resources.ByType "image").Match $album_path }}
  {{ range $images }}
    {{ $image := .Resize "x190" }}
    {{/* Check if the user set a caption for this image */}}
    {{ $filename := path.Base .Name }}
    {{ $caption := "" }}
    {{ if $.Page.Params.gallery_item }}
      {{ range (where (where $.Page.Params.gallery_item "album" $album) "image" $filename) }}
        {{ $caption = .caption }}
      {{ end }}
    {{ end }}
    <a data-fancybox="gallery-{{$album}}" href="{{ .RelPermalink }}" {{ with $caption }}data-caption="{{.|markdownify|emojify|safeHTMLAttr}}"{{ end }}>
      <img src="{{ $image.RelPermalink }}" loading="lazy" alt="{{ plainify $caption | default $filename }}" width="{{ $image.Width }}" height="{{ $image.Height }}">{{/* Width & height (or low res src) required for lazy loading. */}}
    </a>
  {{else}}
    {{ errorf "Unable to load gallery in %s." .Page.File.Filename }}
  {{end}}

</div>