portails/layouts/shortcodes/img.html

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{{ $image := .Page.Resources.GetMatch (printf "*%s*" (.Get "src")) -}}
{{ $lqip := $image.Resize $.Site.Params.lqipWidth -}}
{{ $imgSrc := "" -}}
{{ $imgSrcSet := slice -}}
{{ $widths := $.Site.Params.landscapePhotoWidths -}}
{{ if gt $image.Height $image.Width -}}
{{ $widths = $.Site.Params.portraitPhotoWidths -}}
{{ end -}}
{{ range $widths -}}
{{ $srcUrl := (printf "%dx" . | $image.Resize).Permalink -}}
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{{ if eq $imgSrc "" -}}{{ $imgSrc = $srcUrl -}}{{ end -}}
{{ $imgSrcSet = $imgSrcSet | append (printf "%s %dw" $srcUrl .) -}}
{{ end -}}
{{ $imgSrcSet = (delimit $imgSrcSet ",") -}}
<figure{{ with .Get "class" }} class="{{.}}"{{ end }}>
{{ if eq .Site.Params.options.lazySizes true -}}
<img class="img-fluid lazyload blur-up" data-sizes="auto" src="{{ $lqip.RelPermalink }}" data-srcset="{{ $imgSrcSet }}" width="{{ $image.Width }}" height="{{ $image.Height }}" {{ with .Get "alt" }}alt="{{.}}"{{ end }}>
{{ else -}}
<img class="img-fluid" sizes="100vw" srcset="{{ $imgSrcSet }}" src="{{ $image.RelPermalink }}" width="{{ $image.Width }}" height="{{ $image.Height }}" {{ with .Get "alt" }}alt="{{.}}"{{ end }}>
{{ end -}}
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<noscript><img class="img-fluid" sizes="100vw" srcset="{{ $imgSrcSet }}" src="{{ $image.RelPermalink }}" width="{{ $image.Width }}" height="{{ $image.Height }}" {{ with .Get "alt" }}alt="{{.}}"{{ end }}></noscript>
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{{ with .Get "caption" }}<figcaption class="figure-caption">{{ . | safeHTML }}</figcaption>{{ end }}
</figure>