Migrate *all* photos to the cavelab setup. Header/footer still broken.
Completely remove the other image gallery themes. I now have: image galleries, with lightboxes, and captions, with links in them (and to Hugo pages), with full images lazy-loaded, with all thumbnails auto-generated, and the ability to do this on both individual images *and* with globbing, from page resources, from this page or any specified one. See cavelab_notes.txt. It also has the ability to use Exif data of the photo - if I preprocess it into a JSON file. Known issues: - The theme header/footer are now being overridden. I am working to fix this first. - I am missing some kind of fonts/images needed for the lightbox to show up properly.
This commit is contained in:
Chris Hodapp
@@ -1,71 +1,107 @@
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<!--
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Put this file in /layouts/shortcodes/figure.html
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NB this overrides Hugo's built-in "figure" shortcode but is backwards compatible
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Documentation and licence at https://github.com/liwenyip/hugo-easy-gallery/
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-->
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<!-- See cavelab_notes.txt at root of repo. -->
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<!-- count how many times we've called this shortcode; load the css if it's the first time -->
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{{- if not ($.Page.Scratch.Get "figurecount") -}}<link rel="stylesheet" href="/css/hugo-easy-gallery.css" />{{- end -}}
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{{- $.Page.Scratch.Add "figurecount" 1 -}}
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<!-- Started from: https://blog.cavelab.dev/2021/04/photo-gallery-posts/ -->
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<!-- if 'resource' is given, look for a page resource by that name. -->
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<!-- if 'page' is given, find the page resource there. -->
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<!-- if not, find the page resource in the current page. -->
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<!-- (yes, my description is probably at least 50% wrong) -->
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<!-- Thumbnail image size/type -->
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{{- $resize_opts := "600x jpg" -}}
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<!-- TODO: This isn't generating a JPEG on my configuration. Not sure
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why. Hugo version issue? -->
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{{- $thumb := "" -}}
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{{- $href := "" -}}
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{{- if .Get "resource" -}}
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{{- $page := $.Page -}}
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{{- with .Get "page" -}}
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{{- $page = $.Site.GetPage . -}}
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{{- end -}}
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{{- if not $page -}}
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{{- errorf "Error: Can't find page %s" (.Get "page") -}}
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{{- end -}}
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{{- $resource := (.Get "resource") -}}
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{{- $original := $page.Resources.GetMatch (printf "*%s*" $resource) -}}
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{{- if eq $original nil -}}
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{{- errorf "Error: Can't find resource %s on page %s" $resource (.Get "page") -}}
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{{- end -}}
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{{- if .Get "noresize" -}}
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{{- .Scratch.Set "image" $original -}}
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{{- else -}}
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{{- .Scratch.Set "image" ($original.Resize $resize_opts) -}}
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{{- end -}}
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{{- $image := .Scratch.Get "image" -}}
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{{- $thumb = $image.RelPermalink -}}
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{{- $href = $original.RelPermalink -}}
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{{- else -}}
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<!-- use either src or link-thumb for thumbnail image -->
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{{- $thumb = .Get "src" | default (printf "%s." (.Get "thumb") | replace (.Get "link") ".") -}}
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{{- $href = .Get "link" | default (.Get "src") -}}
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<!-- if 'page' is given, find page resources there. -->
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<!-- if not, find page resources in the current page. -->
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{{- $page := $.Page -}}
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{{- with .Get "page" -}}
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{{- $page = $.Site.GetPage . -}}
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{{- end -}}
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{{- if not $page -}}
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{{- errorf "Error: Can't find page %s" (.Get "page") -}}
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{{- end -}}
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<div class="box{{ with .Get "caption-position" }} fancy-figure caption-position-{{.}}{{end}}{{ with .Get "caption-effect" }} caption-effect-{{.}}{{end}}" {{ with .Get "width" }}style="max-width:{{.}}"{{end}}>
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<figure {{ with .Get "class" }}class="{{.}}"{{ end }} itemprop="associatedMedia" itemscope itemtype="http://schema.org/ImageObject">
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<!-- Prepending ../.. below is a hack to get around
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https://github.com/gohugoio/hugo/issues/2744 when I don't
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feel like setting baseURL and using absolute URLs. -->
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<div class="img"{{ if .Parent }} style="background-image: url('../..{{ $thumb }}');"{{ end }}{{ with .Get "size" }} data-size="{{.}}"{{ end }}>
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<img itemprop="thumbnail" src="{{ $thumb }}" {{ with .Get "alt" | default (.Get "caption" | markdownify) }}alt="{{.}}"{{ end }}/><!-- <img> hidden if in .gallery -->
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</div>
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<a href="{{ $href }}" itemprop="contentUrl"></a>
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{{- if or (or (.Get "title") (.Get "caption" | markdownify)) (.Get "attr") -}}
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<figcaption>
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{{- with .Get "title" -}}<h4>{{.}}</h4>{{ end }}
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{{- if or (.Get "caption" | markdownify) (.Get "attr")}}
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<p>
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{{- .Get "caption" -}}
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{{- with .Get "attrlink"}}<a href="{{.}}">{{ .Get "attr" }}</a>{{ else }}{{ .Get "attr"}}{{ end -}}
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</p>
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{{- $linkto := .Get "linkto" -}}
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{{- $linktitle := "" -}}
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{{- if $linkto -}}
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{{- $linktitle = ($.Site.GetPage $linkto).Title -}}
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{{- end -}}
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{{- $title := .Get "title" -}}
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{{- $resources := .Get "resources" -}}
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{{- if not $resources -}}
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{{- errorf "Error: 'resources' must be given" -}}
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{{- end -}}
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{{- range $src := $page.Resources.Match $resources -}}
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{{- $exifJson := $page.Resources.GetMatch (printf "%s.json" .Name) -}}
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{{- $exif := slice -}}
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{{- with $exifJson -}}
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{{- with (index (.Content | unmarshal) 0) -}}
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{{- with .Title -}}
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<!-- If user gave no title, but Exif has one, use that: -->
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{{- if not $title -}}
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{{- $title = . -}}
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{{- end -}}
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</figcaption>
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{{- end -}}
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{{- with .Make2 -}}{{- $exif = $exif | append (printf "Make: %s" .) -}}{{- end -}}
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{{- with .Model -}}{{- $exif = $exif | append (printf "Camera: %s" .) -}}{{- end -}}
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{{- with .LensSpec -}}{{- $exif = $exif | append (printf "Lens: %s" .) -}}{{- end -}}
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{{- with .FocalLength -}}{{- $exif = $exif | append (printf "Focal length: %s" .) -}}{{- end -}}
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{{- with .FNumber -}}{{- $exif = $exif | append (printf "Aperture: ƒ/%.1f" .) -}}{{- end -}}
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{{- with .ExposureTime -}}
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{{- if eq (printf "%T" .) "float64" -}}
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{{- $exif = $exif | append (printf "Exposure time: %.1f s" .) -}}
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{{- else -}}
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{{- $exif = $exif | append (printf "Exposure time: %s s" .) -}}
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{{- end -}}
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{{- end -}}
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{{- with .ISO -}}{{- $exif = $exif | append (printf "ISO: %.0f" .) -}}{{- end -}}
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{{- end -}}
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</figure>
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</div>
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{{- end -}}
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<!-- If still no title, just use the filename: -->
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{{- if not $title -}}
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{{- $title = .Title -}}
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{{- end -}}
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<!-- If *still* no title, but a link was given, use page title from link: -->
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{{- $text := $title -}}
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{{- if $linkto -}}
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{{- if not $title -}}
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{{- $title = $linktitle -}}
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{{- end -}}
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{{- $text = (printf "<a href=\"%s\">%s</a>" (relref $.Page $linkto) $title) -}}
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{{- end -}}
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<div class="photo-item" data-src="{{ .Permalink }}" data-sub-html="<h4>{{ $text }}</h4><p>{{ delimit $exif " | " }}</p>">
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{{- $crop := default "smart" -}}
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{{- $tinyw := printf "500x375 %s Lanczos q85" $crop -}}
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{{- $smallw := printf "800x600 %s Lanczos q80" $crop -}}
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{{- $mediumw := printf "1200x900 %s Lanczos q40" $crop -}}
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{{- $largew := printf "1600x1200 %s Lanczos q30" $crop -}}
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{{- $srcset := slice -}}
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{{- $tiny := ($src.Fill $tinyw) -}}
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{{- $srcset = $srcset | append (printf "%s 500w" $tiny.Permalink) -}}
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{{- $img := dict "src" $tiny.RelPermalink "w" $tiny.Width "h" $src.Height -}}
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{{- if and (ge $src.Width "800") (ne $src.MediaType.SubType "png") -}}
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{{- $small := ($src.Fill $smallw) -}}
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{{- $srcset = $srcset | append (printf "%s 800w" $small.Permalink) -}}
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{{- $img = dict "src" $small.RelPermalink "w" $small.Width "h" $small.Height -}}
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{{- end -}}
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{{- if and (ge $src.Width "1200") (ne $src.MediaType.SubType "png") -}}
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{{- $medium := ($src.Fill $mediumw) -}}
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{{- $srcset = $srcset | append (printf "%s 1200w" $medium.Permalink) -}}
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{{- end -}}
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{{- if and (ge $src.Width "1600") (ne $src.MediaType.SubType "png") -}}
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{{- $large := ($src.Fill $largew) -}}
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{{- $srcset = $srcset | append (printf "%s 1600w" $large.Permalink) -}}
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{{- end -}}
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{{- $sizes := "(min-width: 900px) 420px, (min-width: 684px) 310px, calc(100vw - 40px)" -}}
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<a href="{{ .Permalink }}">
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<picture>
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<source type="{{ $src.MediaType }}" sizes="{{ $sizes }}" srcset='{{ delimit $srcset ", " }}'>
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<img loading="lazy" class="center"
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src="{{ $img.src }}" width="{{ $img.w }}" height="{{ $img.h }}" alt="{{ $title }}">
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<!-- CMH: img was missing closing tag on his website -->
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</picture>
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</a>
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</div>
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{{ end }}
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