1 files changed, 62 insertions, 0 deletions
diff --git a/static/user/user-additions.js b/static/user/user-additions.js
new file mode 100644
index 00000000..c9ebe1a4
--- /dev/null
+++ b/static/user/user-additions.js
@@ -0,0 +1,62 @@
+window.formatters.set('description', (el, d) => {
+    if (/<br\/?>/.exec(d)) {
+        /* Assume that the text is HTML iff it contains a <br/> tag */
+        let parser = new DOMParser();
+        let doc = parser.parseFromString(d, 'text/html');
+        el.replaceChildren(doc.body);
+    } else {
+        /* Otherwise it should be plain(er) text, parse "all" links */
+        let rx = /https?:\/\/\S+/g
+        let idx = 0;
+        let children = []
+        for (let match of d.matchAll(rx)) {
+            let anch = document.createElement('a')
+            anch.href = match[0]
+            anch.textContent = match[0]
+
+            children.push(d.substring(idx, match.index))
+            children.push(anch)
+
+            idx = match.index + match[0].length
+        }
+        children.push(d.substring(idx))
+        el.replaceChildren(...children);
+    }
+})
+
+/* This location formatter is generally not for general use.
+   It holds a small lookup table of "all" locations at Linköping University,
+   and makes location names from their calendar system clickable.
+
+   To obtain salar.json, run scripts/fetch-liu-map-index.scm from calps source tree.
+*/
+
+window.salar = new Promise((resolve, reject) =>
+    fetch('/static/user/salar.json')
+    .then(d => d.json())
+    .then(d => resolve(d)))
+
+
+window.formatters.set('location', async function(el, d) {
+    let rx = /Lokal: (.*)/
+    let m = rx.exec(d)
+    if (! m) {
+        el.textContent = d;
+        return;
+    }
+
+    let salar = await window.salar;
+
+    let name = m[1]
+    let frag = salar[name];
+    if (frag) {
+        let anch = document.createElement('a');
+        anch.href = `https://old.liu.se/karta/${frag}`
+        anch.target = '_blank'
+        anch.textContent = name;
+        el.append('Lokal: ');
+        el.append(anch);
+    } else {
+        el.textContent = `Lokal: ${name}`
+    }
+})