hugo/tpl/tplimpl/embedded/templates/partials/_funcs/get-page-images.html
Razon Yang 14d85ec136
tpl: Allow using page resources on the images page parameter for opengraph, schema and twitter_cards templates
The page images selection order as follows:

1. Page's images parameter, image resources are supported.
2. Page's image resources that naming in *feature*, *cover* or *thumbnail* pattern.
3. If no page images specified, then the first one of site's images will be used as the fallback, supports site resources.
2023-12-04 12:05:41 +01:00

47 lines
1.4 KiB
HTML

{{- $imgs := slice }}
{{- $imgParams := .Params.images }}
{{- $resources := .Resources.ByType "image" -}}
{{/* Find featured image resources if the images parameter is empty. */}}
{{- if not $imgParams }}
{{- $featured := $resources.GetMatch "*feature*" -}}
{{- if not $featured }}{{ $featured = $resources.GetMatch "{*cover*,*thumbnail*}" }}{{ end -}}
{{- with $featured }}
{{- $imgs = $imgs | append (dict
"Image" .
"RelPermalink" .RelPermalink
"Permalink" .Permalink) }}
{{- end }}
{{- end }}
{{/* Use the first one of site images as the fallback. */}}
{{- if and (not $imgParams) (not $imgs) }}
{{- with site.Params.images }}
{{- $imgParams = first 1 . }}
{{- end }}
{{- end }}
{{/* Parse page's images parameter. */}}
{{- range $imgParams }}
{{- $img := . }}
{{- $url := urls.Parse $img }}
{{- if eq $url.Scheme "" }}
{{/* Internal image. */}}
{{- with $resources.GetMatch $img -}}
{{/* Image resource. */}}
{{- $imgs = $imgs | append (dict
"Image" .
"RelPermalink" .RelPermalink
"Permalink" .Permalink) }}
{{- else }}
{{- $imgs = $imgs | append (dict
"RelPermalink" (relURL $img)
"Permalink" (absURL $img)
) }}
{{- end }}
{{- else }}
{{/* External image */}}
{{- $imgs = $imgs | append (dict
"RelPermalink" $img
"Permalink" $img
) }}
{{- end }}
{{- end }}
{{- return $imgs }}