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       tpl: Allow using page resources on the images page parameter for `opengraph`, `schema` and `twitter_cards` templates - hugo - [fork] hugo port for 9front
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       ---
   DIR commit 14d85ec136413dcfc96ad8e4d31633f8f9cbf410
   DIR parent 171836cdfae7e9697fddafe262c46b9448bcb98e
  HTML Author: Razon Yang <razonyang@gmail.com>
       Date:   Mon,  4 Dec 2023 19:05:41 +0800
       
       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.
       
       Diffstat:
         M hugolib/embedded_templates_test.go  |      27 ++++++++++++++++-----------
         M tpl/tplimpl/embedded/templates/ope… |      14 +++-----------
         A tpl/tplimpl/embedded/templates/par… |      47 +++++++++++++++++++++++++++++++
         M tpl/tplimpl/embedded/templates/sch… |      14 +++-----------
         M tpl/tplimpl/embedded/templates/twi… |      20 ++++----------------
         M tpl/tplimpl/template.go             |       4 ++--
       
       6 files changed, 75 insertions(+), 51 deletions(-)
       ---
   DIR diff --git a/hugolib/embedded_templates_test.go b/hugolib/embedded_templates_test.go
       @@ -36,9 +36,9 @@ lastmod: 2021-05-22T19:25:00-01:00
        ---
        `)
        
       -        b.WithContent("mypage.md", `---
       +        b.WithContent("mypage/index.md", `---
        title: My Page
       -images: ["pageimg1.jpg", "pageimg2.jpg"]
       +images: ["pageimg1.jpg", "pageimg2.jpg", "https://example.local/logo.png", "sample.jpg"]
        date: 2021-02-26T18:02:00+01:00
        lastmod: 2021-05-22T19:25:00+01:00
        ---
       @@ -58,37 +58,42 @@ title: My Site
        `)
        
                b.WithSunset("content/mybundle/featured-sunset.jpg")
       +        b.WithSunset("content/mypage/sample.jpg")
                b.Build(BuildCfg{})
        
                b.AssertFileContent("public/mybundle/index.html", `
       -<meta name="twitter:image" content="https://example.org/mybundle/featured-sunset.jpg"/>
       +<meta name="twitter:image" content="https://example.org/mybundle/featured-sunset.jpg" />
        <meta name="twitter:title" content="My Bundle"/>
        <meta property="og:title" content="My Bundle" />
        <meta property="og:url" content="https://example.org/mybundle/" />
       -<meta property="og:image" content="https://example.org/mybundle/featured-sunset.jpg"/>
       +<meta property="og:image" content="https://example.org/mybundle/featured-sunset.jpg" />
        <meta property="article:published_time" content="2021-02-26T18:02:00-01:00" />
        <meta property="article:modified_time" content="2021-05-22T19:25:00-01:00" />
        <meta itemprop="name" content="My Bundle">
       -<meta itemprop="image" content="https://example.org/mybundle/featured-sunset.jpg">
       +<meta itemprop="image" content="https://example.org/mybundle/featured-sunset.jpg" />
        <meta itemprop="datePublished" content="2021-02-26T18:02:00-01:00" />
        <meta itemprop="dateModified" content="2021-05-22T19:25:00-01:00" />
        
        `)
                b.AssertFileContent("public/mypage/index.html", `
       -<meta name="twitter:image" content="https://example.org/pageimg1.jpg"/>
       +<meta name="twitter:image" content="https://example.org/pageimg1.jpg" />
        <meta property="og:image" content="https://example.org/pageimg1.jpg" />
        <meta property="og:image" content="https://example.org/pageimg2.jpg" />
       +<meta property="og:image" content="https://example.local/logo.png" />
       +<meta property="og:image" content="https://example.org/mypage/sample.jpg" />
        <meta property="article:published_time" content="2021-02-26T18:02:00+01:00" />
        <meta property="article:modified_time" content="2021-05-22T19:25:00+01:00" />
       -<meta itemprop="image" content="https://example.org/pageimg1.jpg">
       -<meta itemprop="image" content="https://example.org/pageimg2.jpg">
       +<meta itemprop="image" content="https://example.org/pageimg1.jpg" />
       +<meta itemprop="image" content="https://example.org/pageimg2.jpg" />
       +<meta itemprop="image" content="https://example.local/logo.png" />
       +<meta itemprop="image" content="https://example.org/mypage/sample.jpg" />
        <meta itemprop="datePublished" content="2021-02-26T18:02:00+01:00" />
        <meta itemprop="dateModified" content="2021-05-22T19:25:00+01:00" />
        `)
                b.AssertFileContent("public/mysite/index.html", `
       -<meta name="twitter:image" content="https://example.org/siteimg1.jpg"/>
       -<meta property="og:image" content="https://example.org/siteimg1.jpg"/>
       -<meta itemprop="image" content="https://example.org/siteimg1.jpg"/>
       +<meta name="twitter:image" content="https://example.org/siteimg1.jpg" />
       +<meta property="og:image" content="https://example.org/siteimg1.jpg" />
       +<meta itemprop="image" content="https://example.org/siteimg1.jpg" />
        `)
        }
        
   DIR diff --git a/tpl/tplimpl/embedded/templates/opengraph.html b/tpl/tplimpl/embedded/templates/opengraph.html
       @@ -3,17 +3,9 @@
        <meta property="og:type" content="{{ if .IsPage }}article{{ else }}website{{ end }}" />
        <meta property="og:url" content="{{ .Permalink }}" />
        
       -{{- with $.Params.images -}}
       -{{- range first 6 . }}<meta property="og:image" content="{{ . | absURL }}" />{{ end -}}
       -{{- else -}}
       -{{- $images := $.Resources.ByType "image" -}}
       -{{- $featured := $images.GetMatch "*feature*" -}}
       -{{- if not $featured }}{{ $featured = $images.GetMatch "{*cover*,*thumbnail*}" }}{{ end -}}
       -{{- with $featured -}}
       -<meta property="og:image" content="{{ $featured.Permalink }}"/>
       -{{- else -}}
       -{{- with $.Site.Params.images }}<meta property="og:image" content="{{ index . 0 | absURL }}"/>{{ end -}}
       -{{- end -}}
       +{{- $images := partial "_funcs/get-page-images" . -}}
       +{{- range first 6 $images -}}
       +  <meta property="og:image" content="{{ .Permalink }}" />
        {{- end -}}
        
        {{- if .IsPage }}
   DIR diff --git a/tpl/tplimpl/embedded/templates/partials/_funcs/get-page-images.html b/tpl/tplimpl/embedded/templates/partials/_funcs/get-page-images.html
       @@ -0,0 +1,47 @@
       +{{- $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 }}
   DIR diff --git a/tpl/tplimpl/embedded/templates/schema.html b/tpl/tplimpl/embedded/templates/schema.html
       @@ -7,17 +7,9 @@
        {{ with .Lastmod }}<meta itemprop="dateModified" {{ .Format $iso8601 | printf "content=%q" | safeHTMLAttr }} />{{ end}}
        <meta itemprop="wordCount" content="{{ .WordCount }}">
        
       -{{- with $.Params.images -}}
       -{{- range first 6 . -}}<meta itemprop="image" content="{{ . | absURL }}">{{ end -}}
       -{{- else -}}
       -{{- $images := $.Resources.ByType "image" -}}
       -{{- $featured := $images.GetMatch "*feature*" -}}
       -{{- if not $featured }}{{ $featured = $images.GetMatch "{*cover*,*thumbnail*}" }}{{ end -}}
       -{{- with $featured -}}
       -<meta itemprop="image" content="{{ $featured.Permalink }}">
       -{{- else -}}
       -{{- with $.Site.Params.images -}}<meta itemprop="image" content="{{ index . 0 | absURL }}"/>{{ end -}}
       -{{- end -}}
       +{{- $images := partial "_funcs/get-page-images" . -}}
       +{{- range first 6 $images -}}
       +  <meta itemprop="image" content="{{ .Permalink }}" />
        {{- end -}}
        
        <!-- Output all taxonomies as schema.org keywords -->
   DIR diff --git a/tpl/tplimpl/embedded/templates/twitter_cards.html b/tpl/tplimpl/embedded/templates/twitter_cards.html
       @@ -1,22 +1,10 @@
       -{{- with $.Params.images -}}
       -<meta name="twitter:card" content="summary_large_image"/>
       -<meta name="twitter:image" content="{{ index . 0 | absURL }}"/>
       -{{ else -}}
       -{{- $images := $.Resources.ByType "image" -}}
       -{{- $featured := $images.GetMatch "*feature*" -}}
       -{{- if not $featured }}{{ $featured = $images.GetMatch "{*cover*,*thumbnail*}" }}{{ end -}}
       -{{- with $featured -}}
       -<meta name="twitter:card" content="summary_large_image"/>
       -<meta name="twitter:image" content="{{ $featured.Permalink }}"/>
       +{{- $images := partial "_funcs/get-page-images" . -}}
       +{{- with index $images 0 -}}
       +<meta name="twitter:card" content="summary_large_image" />
       +<meta name="twitter:image" content="{{ .Permalink }}" />
        {{- else -}}
       -{{- with $.Site.Params.images -}}
       -<meta name="twitter:card" content="summary_large_image"/>
       -<meta name="twitter:image" content="{{ index . 0 | absURL }}"/>
       -{{ else -}}
        <meta name="twitter:card" content="summary"/>
        {{- end -}}
       -{{- end -}}
       -{{- end }}
        <meta name="twitter:title" content="{{ .Title }}"/>
        <meta name="twitter:description" content="{{ with .Description }}{{ . }}{{ else }}{{if .IsPage}}{{ .Summary }}{{ else }}{{ with .Site.Params.description }}{{ . }}{{ end }}{{ end }}{{ end -}}"/>
        
   DIR diff --git a/tpl/tplimpl/template.go b/tpl/tplimpl/template.go
       @@ -751,7 +751,7 @@ func (t *templateHandler) applyTemplateTransformers(ns *templateNamespace, ts *t
                return c, err
        }
        
       -//go:embed embedded/templates/*
       +//go:embed all:embedded/templates/*
        //go:embed embedded/templates/_default/*
        //go:embed embedded/templates/_server/*
        var embeddedTemplatesFs embed.FS
       @@ -779,7 +779,7 @@ func (t *templateHandler) loadEmbedded() error {
                        // For the render hooks and the server templates it does not make sense to preserve the
                        // double _internal double book-keeping,
                        // just add it if its now provided by the user.
       -                if !strings.Contains(path, "_default/_markup") && !strings.HasPrefix(name, "_server/") {
       +                if !strings.Contains(path, "_default/_markup") && !strings.HasPrefix(name, "_server/") && !strings.HasPrefix(name, "partials/_funcs/") {
                                templateName = internalPathPrefix + name
                        }