add support for tags

lib/custom_html.typ

@@ -33,3 +33,4 @@
 #let summary-card-details = html.elem.with("summary-card-details")
 
 #let summary-card-list = html.elem.with("summary-card-list")
+#let tag-box = html.elem.with("tag-box")

lib/html_head.typ

@@ -17,6 +17,8 @@
   description: none,
   /// Author of the site for metadata, default to document.author
   author: none,
+  /// Tags describing the content of the page
+  tags: (),
   /// Additional stylesheet for the page: must be a list of url
   stylesheets: (),
   /// List of related sites for metadata
@@ -38,6 +40,11 @@
     // Only set the Referer header for out request to the same origin
     html.meta(name: "referrer", content: "same-origin")
 
+    // Tags
+    if tags.len() != 0 {
+      html.meta(name: "keywords", content: tags.join(", "))
+    }
+
     if icon != none {
       html.link(rel: "icon", type: "image/png", href: icon)
     }

lib/main.typ

@@ -23,6 +23,8 @@
   description: none,
   /// Author of the site for metadata, default to document.author
   author: none,
+  /// Tags describing the content of the page
+  tags: (),
   /// Additional stylesheet for the page: must be a list of url
   stylesheets: (),
   /// List of related sites for metadata
@@ -53,6 +55,7 @@
       site-name: site-name,
       description: description,
       author: author,
+      tags: tags,
       stylesheets: stylesheets,
       me-links: me-links
     )

lib/summary.typ

@@ -51,6 +51,30 @@
         margin-top: auto;
         padding-top: 1em;
       }
+
+      tag-box {
+        display: flex;
+        flex-wrap: wrap;
+        margin-top: 0.3em;
+
+        .tag {
+          max-width: ;
+          overflow: hidden;
+          text-overflow: ellipsis;
+          display:inline-block;
+          white-space: nowrap;
+
+          background-color: var(--color-bg-highlight);
+          margin: 0.1em;
+          padding-top: 0.1em;
+          padding-bottom: 0.1em;
+          padding-left: 0.4em;
+          padding-right: 0.4em;
+          border-radius: 1em;
+
+        }
+      }
+
     }
 
   }
@@ -68,6 +92,7 @@
         html.a(href: summ.template-args.url, summ.document-args.description)
 
         chtml.summary-card-details(summ.document-args.date.display())
+        chtml.tag-box(for tag in summ.template-args.tags { html.span(class: ("tag",), "#" + tag) })
       })
   })
 }
@@ -92,6 +117,8 @@
   description: none,
   /// The date of publication (or maybe update?) of the page.
   date: none,
+  /// Tags associated to the content of the page
+  tags: (),
 ) = {
   assert(type(url) == str, message: "summary() must have an url")
   assert(type(title) == str or type(title) == content, message: "summary() must have title")
@@ -109,6 +136,7 @@
     ),
     template-args: (
       url: url,
+      tags: tags,
     ),
     preview-image: preview-image,
     img-copyright: img-copyright,

lib/theme_colors.typ

@@ -14,7 +14,8 @@
   --color-button-shadow: light-dark(#888, #000);
   --color-button-focus: light-dark(#000, #FFF);
 
-  --color-code-bg: light-dark(rgba(0, 0, 0, 0.05), rgba(255, 255, 255, 0.05));
+  --color-bg-highlight: light-dark(rgba(0, 0, 0, 0.05), rgba(255, 255, 255, 0.05));
+  --color-code-bg: var(--color-bg-highlight);
 
   --color-bg-overlay: light-dark(rgba(255, 255, 255, 0.9), rgba(0, 0, 0, 0.9));