From b7bbe87298cb6a6c124987a84479b3e36c60b5e5 Mon Sep 17 00:00:00 2001
From: Salim B <git@salim.space>
Date: Wed, 1 Nov 2023 00:33:29 +0100
Subject: [PATCH] Incl. extracted inline styles in head

---
 layouts/partials/_inline-svg.html            | 8 ++++++++
 layouts/partials/head/inline-svg-styles.html | 8 ++++++++
 2 files changed, 16 insertions(+)
 create mode 100644 layouts/partials/head/inline-svg-styles.html

diff --git a/layouts/partials/_inline-svg.html b/layouts/partials/_inline-svg.html
index 32a3189..9476d98 100644
--- a/layouts/partials/_inline-svg.html
+++ b/layouts/partials/_inline-svg.html
@@ -75,6 +75,14 @@
   {{ end }}
   {{ $replacement = print "$1 " (delimit $attributes " ") "$2" }}
   {{ $markup = replaceRE $patternSvgTag $replacement $markup 1 }}
+
+  {{/* Extract inline styles and write them to page store to be included in head */}}
+  {{ $inlineStyles := slice }}
+  {{ range (findRE `<style(\s+[^>]*)?>[\s\S]*?</style>` $markup) }}
+    {{ $inlineStyles = append (replaceRE `(^<style(\s+[^>]*)?>|</style>$)` "" .) $inlineStyles }}
+    {{ $markup = replace $markup . "" 1 }}
+  {{ end }}
+  {{ page.Store.Add "inlineStyles" $inlineStyles }}
 {{ else }}
   {{ warnf "Could not find src '%s'." .src }}
 {{ end }}
diff --git a/layouts/partials/head/inline-svg-styles.html b/layouts/partials/head/inline-svg-styles.html
new file mode 100644
index 0000000..a10829d
--- /dev/null
+++ b/layouts/partials/head/inline-svg-styles.html
@@ -0,0 +1,8 @@
+{{- /* Trigger evaluation of shortcodes */ -}}
+{{- $noop := .WordCount -}}
+{{- /* Include extracted inline SVG styles as proper resources */ -}}
+{{- $css := "" -}}
+{{- with .Store.Get "inlineStyles" -}}
+  {{- $css := delimit . "\n" | resources.FromString "inline-svg.css" | resources.Fingerprint "sha512" -}}
+  <link rel="stylesheet" href="{{ $css.Permalink | relURL }}" integrity="{{ $css.Data.Integrity }}" crossorigin="anonymous">
+{{- end }}