42 lines
1.5 KiB
HTML
42 lines
1.5 KiB
HTML
{{- /*
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Params:
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Resource: Hugo image resource object (Optional, for processing)
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Width: Image width (Required)
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Height: Image height (Required)
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Resize: Whether to perform resize (Optional, default: false)
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Attributes: Map of HTML attributes for the <img> tag
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*/ -}}
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{{- $resource := .Resource -}}
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{{- $width := .Width -}}
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{{- $height := .Height -}}
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{{- $resize := .Resize -}}
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{{- $attributes := .Attributes | default dict -}}
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{{- if and $resize $resource (reflect.IsImageResourceProcessable $resource) $width $height -}}
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{{/* Create thumbnail with 1x/2x descriptors */}}
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{{- $srcset := slice -}}
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{{- range (slice 1 2) -}}
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{{- $w := mul $width . -}}
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{{- $h := mul $height . -}}
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{{- if and (le $w $resource.Width) (le $h $resource.Height) -}}
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{{- $resized := $resource.Fill (printf "%dx%d" $w $h) -}}
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{{- $srcset = $srcset | append (printf "%s %dx" $resized.RelPermalink .) -}}
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{{- if eq . 1 -}}
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{{- $attributes = merge $attributes (dict "src" $resized.RelPermalink) -}}
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{{- end -}}
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{{- end -}}
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{{- end -}}
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{{- if gt (len $srcset) 0 -}}
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{{- $attributes = merge $attributes (dict "width" $width "height" $height "srcset" (delimit $srcset ", ")) -}}
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{{- end -}}
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{{- end -}}
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<img {{- range $k, $v := $attributes -}}
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{{- if $v -}}
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{{- printf " %s=%q" (lower $k) (printf "%v" $v) | safeHTMLAttr -}}
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{{- end -}}
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{{- end -}}>
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