Files
hinode/layouts/shortcodes/image.html
2022-03-13 06:15:36 +01:00

76 lines
3.0 KiB
HTML

<!--
Render an image with responsive image sizing. The image should be available as resource stored in the "assets"
folder. Images are resized using default media breakpoints and are converted to webp format. The image is
processed using the quality setting specified in the [imaging] section of the main config file (defaults to 75).
A fallback image is provided for older browsers. The partial supports the following arguments:
"src": Required relative url of the image, e.g. "img/example.jpg"
"ratio": Bootstrap ratio of the image, either "1x1", "4x3" (default), "16x9", or "21x9".
"class": Optional class attribute of the inner img element, e.g. "rounded".
"title": Optional alternate text of the image.
"caption": Optional figure caption.
-->
{{ if isset .Params "src" }}
{{ $url := .Get "src" }}
{{ $ratio := "4x3" }}
{{ $class := "" }}
{{ $title := "" }}
{{ $caption := "" }}
{{ $img := resources.Get $url }}
{{ with .Get "ratio" }}{{ $ratio = . }}{{ end }}
{{ with .Get "class" }}{{ $class = . }}{{ end }}
{{ with .Get "title" }}{{ $title = . }}{{ end }}
{{ with .Get "caption" }}{{ $caption = . }}{{ end }}
<!-- default ratio 4x3 -->
{{ $smDim := "576x432" }}
{{ $mdDim := "768x576" }}
{{ $lgDim := "992x744" }}
{{ $xlDim := "1200x900" }}
{{ $xxlDim := "1400x1050" }}
{{ if eq $ratio "1x1"}}
{{ $smDim = "576x576" }}
{{ $mdDim = "768x768" }}
{{ $lgDim = "992x992" }}
{{ $xlDim = "1200x1200" }}
{{ $xxlDim = "1400x1400" }}
{{ else if eq $ratio "16x9"}}
{{ $smDim = "576x324" }}
{{ $mdDim = "768x432" }}
{{ $lgDim = "992x558" }}
{{ $xlDim = "1200x675" }}
{{ $xxlDim = "1400x788" }}
{{ else if eq $ratio "21x9"}}
{{ $smDim = "576x247" }}
{{ $mdDim = "768x329" }}
{{ $lgDim = "992x425" }}
{{ $xlDim = "1200x514" }}
{{ $xxlDim = "1400x600" }}
{{ end }}
{{ $sm := ($img.Fill (printf "%s webp" $smDim)) }}
{{ $md := ($img.Fill (printf "%s webp" $mdDim)) }}
{{ $lg := ($img.Fill (printf "%s webp" $lgDim)) }}
{{ $xl := ($img.Fill (printf "%s webp" $xlDim)) }}
{{ $xxl := ($img.Fill (printf "%s webp" $xxlDim)) }}
{{ $fallback := ($img.Fill (printf "%s jpg" $xxlDim)) }}
<figure class="figure">
<img class="figure-img img-fluid {{ $class}}"
srcset="
{{- with $xxl.RelPermalink -}}{{.}} 1400w{{- end -}}
{{- with $xl.RelPermalink -}}, {{.}} 1200w{{- end -}}
{{- with $lg.RelPermalink -}}, {{.}} 992w{{- end -}}
{{- with $md.RelPermalink -}}, {{.}} 768w{{- end -}}
{{- with $sm.RelPermalink -}}, {{.}} 576w{{- end -}}"
sizes="100vw"
src="{{ $fallback.RelPermalink }}"
alt="{{ $title }}">
<figcaption class="figure-caption">{{ $caption }}</figcaption>
</figure>
{{ else }}
{{ errorf "missing value for param 'src': %s" .Position }}
{{ end }}