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.

1 files changed, 11 insertions, 0 deletions

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));