From 836c449d0c54f2812c5c1fe3a02152cab08b10f5 Mon Sep 17 00:00:00 2001
From: dzello <jdzielak@gmail.com>
Date: Sat, 21 Jul 2018 10:53:55 +0200
Subject: [PATCH] Add "content" attribute to slide shortcode

Points to a data template where markdown is contained. Makes it easy to reuse slides.
---
 layouts/shortcodes/slide.html | 25 +++++++++++++++++++++----
 1 file changed, 21 insertions(+), 4 deletions(-)

diff --git a/layouts/shortcodes/slide.html b/layouts/shortcodes/slide.html
index 6a4fc79..70eea53 100644
--- a/layouts/shortcodes/slide.html
+++ b/layouts/shortcodes/slide.html
@@ -1,9 +1,26 @@
+{{ .Scratch.Set "slides" slice }}
+
+{{ if trim .Inner "\n" }}
+{{ .Scratch.Add "slides" .Inner }}
+{{ end }}
+
+{{ if .Get "content" }}
+  {{ $lookup := split (.Get "content") "." }}
+  {{ $html := index .Page.Site.Data (index $lookup 0) (index $lookup 1) | markdownify }}
+  {{ $slides := split $html "<hr />" }}
+  {{ $scratch := .Scratch }}
+  {{ range $slides }}
+    {{ $scratch.Add "slides" . }}
+  {{ end }}
+{{ end }}
+
 {{ $attributes := slice "background-color" "background-image" "background-size" "background-position" "background-repeat" "transition" "transition-speed" "background-iframe" "background-interactive" "background-video" "background-video-loop" "background-video-muted" }}
 {{ $params := . }}
+{{ range .Scratch.Get "slides" }}
 <section data-noprocess
   {{- range $attribute := $attributes -}}
     {{- with $params.Get $attribute }} data-{{ $attribute | safeHTMLAttr }}="{{ . }}"{{ end -}}
-  {{- end -}}
-  >
-{{ .Inner }}
-</section>
\ No newline at end of file
+  {{- end -}}>
+  {{ . | safeHTML }}
+</section>
+{{ end }}