Finalize capabilityfeature/static-rsvp-form

1 files changed, 49 insertions, 0 deletions

diff --git a/haunt/static/js/rsvp-min.js b/haunt/static/js/rsvp-min.js
new file mode 100644
index 0000000..8c6d053
--- /dev/null
+++ b/haunt/static/js/rsvp-min.js
@@ -0,0 +1,49 @@
+/*
+ * rsvp-min.js -- UX improvements for static RSVP form page.
+ * Copyright © 2023 Jakob L. Kreuze <zerodaysfordays@sdf.org>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 3 of the
+ * License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see
+ * <http://www.gnu.org/licenses/>.
+ */
+
+// Common nodes.
+const guestView = document.getElementById("guest-view");
+const guestList = document.getElementById("guest-list");
+const addEntryButton = document.getElementById("add-entry");
+const removeEntryButton = document.getElementById("remove-entry");
+
+// Enable visual elements.
+guestList.setAttribute("hidden", true);
+addEntryButton.removeAttribute("hidden");
+removeEntryButton.removeAttribute("hidden");
+
+function updateGuestList() {
+  guestList.value = guestView.childNodes.map((node) => node.value).join(",");
+}
+
+addEntry.addEventListener("click", () => {
+  let i = guestView.childNodes.length;
+  let elem = document.createElement("input");
+  elem.type = "text";
+  elem.name = `guest-${i}`;
+  guestView.appendChild(elem);
+
+  elem.addEventListener("input", updateGuestList);
+});
+removeEntry.addEventListener("click", () => {
+  if (guestView.lastChild) {
+    guestView.lastChild.remove();
+  }
+  updateGuestList();
+});