mirror of
https://github.com/tiennm99/HugoBlox-kit.git
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George Cushen
361707f4fd
The proportion of image data in the typical payload of a website can be significant. Lazy loading is a solution that lowers initial page payload and load time, without removing content. Non-critical resources are instead loaded at the moment that they are needed. Also, load MathJax async in head if required, rather than at end of body. Close #1106
56 lines
2.1 KiB
HTML
56 lines
2.1 KiB
HTML
{{/* Get album folder or default to `gallery/`. */}}
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{{ $album := "" }}
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{{ with .Get "album" }}{{ $album = . }}{{else}}{{ $album = "gallery" }}{{end}}
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{{/* Set image path and page bundle that images are associated with. */}}
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{{ $album_path := "" }}
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{{ $resource_page := "" }}
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{{ if eq .Page.Parent.Type "widget_page" }}
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{{ $album_path = printf "%s/%s/*" (path.Base (path.Split .Page.Path).Dir) $album }}
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{{ $resource_page = $.Page.Parent }}
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{{ else }}
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{{ $album_path = printf "%s/*" $album }}
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{{ $resource_page = $.Page }}
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{{ end }}
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<div class="gallery">
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{{/* Attempt to automatically load gallery images from page bundle */}}
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{{ $images := ($resource_page.Resources.ByType "image").Match $album_path }}
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{{ with $images }}
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{{ range $images }}
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{{ $image := .Resize "x190" }}
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{{/* Check if the user set a caption for this image */}}
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{{ $filename := path.Base .Name }}
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{{ $caption := "" }}
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{{ if $.Page.Params.gallery_item }}
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{{ range (where (where $.Page.Params.gallery_item "album" $album) "image" $filename) }}
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{{ $caption = .caption }}
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{{ end }}
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{{ end }}
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<a data-fancybox="gallery-{{$album}}" href="{{ .RelPermalink }}" {{ with $caption }}data-caption="{{.|markdownify|emojify|safeHTMLAttr}}"{{ end }}>
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<img data-src="{{ $image.RelPermalink }}" class="lazyload" alt="">
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</a>
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{{end}}
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{{else}}
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{{/* Load gallery images from the `static/img/` media library or internet */}}
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{{ if $.Page.Params.gallery_item }}
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{{ range (where $.Page.Params.gallery_item "album" $album) }}
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{{/* Set image path. */}}
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{{ $.Scratch.Set "src" .image }}
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{{ if gt (len .image) 4 }}
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{{ if ne "http" (slicestr .image 0 4) }}
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{{ $.Scratch.Set "src" (printf "img/%s" .image | relURL) }}
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{{ end }}
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{{ end }}
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<a data-fancybox="gallery{{ with .album }}-{{.}}{{ end }}" {{ with .caption }}data-caption="{{.|markdownify|emojify|safeHTMLAttr}}"{{ end }} href="{{$.Scratch.Get "src"}}">
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<img data-src="{{$.Scratch.Get "src"}}" class="lazyload" alt="">
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</a>
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{{end}}
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{{else}}
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{{ errorf "Unable to load gallery in %s." .Page.File.Filename }}
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{{end}}
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{{end}}
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</div> |