From bc3e25f8c1edbd233ed0c266c574892e88644d9c Mon Sep 17 00:00:00 2001
From: Ben Bridle <ben@derelict.engineering>
Date: Wed, 15 Jan 2025 15:54:27 +1300
Subject: Implement image galleries

Each gallery image must be kept in the three directories images/large,
images/small, and images/thumb. A gallery is a fragment with the
language 'gallery' containing a list of image filenames, one per line.
---
 src/generate_html.rs | 11 +++++++++++
 1 file changed, 11 insertions(+)

(limited to 'src/generate_html.rs')

diff --git a/src/generate_html.rs b/src/generate_html.rs
index 3486352..0210986 100644
--- a/src/generate_html.rs
+++ b/src/generate_html.rs
@@ -188,6 +188,17 @@ pub fn document_to_html(document: &MarkdownDocument, page: &Page, website: &Webs
                         for paragraph in recipe.process { html!("<p>{paragraph}</p>") }
                         html!("</div>");
                     },
+                    "gallery" => wrap!("div", "class='gallery'", for line in content.lines() {
+                        let file = line.trim();
+                        if !website.has_image(file) {
+                            warn!("Gallery on page {:?} references nonexistent image {file:?}", page.name);
+                            continue;
+                        }
+                        let large = format!("{root}images/large/{file}");
+                        // let small = format!("{root}images/small/{file}");
+                        let thumb = format!("{root}images/thumb/{file}");
+                        html!("<a href='{large}'><img src='{thumb}'></a>");
+                    }),
                     _ => {
                         html!("<pre class='{}'>", language);
                         html!("{}", sanitize_text(content));
-- 
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