mirror of
https://github.com/theNewDynamic/gohugo-theme-ananke.git
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29 lines
968 B
Plaintext
29 lines
968 B
Plaintext
{{/*
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GetImageSrcset
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This partial gets a srcset for a given image.
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@return Slice of sources suitable for use in a srcset attribute. May be empty.
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*/}}
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{{/* Declare a new variable, $srcset */}}
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{{ $srcset := slice }}
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{{ with site.Param "breakpoints" }}
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{{ $scratch := newScratch }}
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{{ range $breakpoint := . }}
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{{ $target_width := mul $breakpoint $.target_width }}
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{{/* Default mobile breakpoint for Tachyons is 480 */}}
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{{ if and (ge $breakpoint 480) (ge $.original.Width $target_width) }}
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{{ $breakpoint_image := $.original.Resize (print (math.Round $target_width) "x") }}
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{{ $breakpoint_image_url := (trim $breakpoint_image.RelPermalink "/") | absURL }}
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{{ $scratch.Add "srcset" (slice (print $breakpoint_image_url " " (math.Round $target_width) "w")) }}
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{{ end }}
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{{ end }}
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{{ $srcset = $scratch.Get "srcset" }}
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{{ end }}
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{{/* Return a srcset. */}}
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{{ return $srcset }}
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