add a checkbox for free events

dnscms/dnscms/static/js/page-editor.js

@@ -0,0 +1,21 @@
+function registerPricingPanelToggler() {
+  const checkbox = document.querySelector(
+    `input[type="checkbox"][id$="id_free"]`
+  );
+  const specificPricingPanel = document.querySelector(
+    `div#specific_pricing_panel`
+  );
+
+  function onChange() {
+    specificPricingPanel.style.display = checkbox.checked ? "none" : "block";
+  }
+
+  if (checkbox && specificPricingPanel) {
+    checkbox.addEventListener("change", () => onChange());
+    onChange();
+  }
+}
+
+document.addEventListener("DOMContentLoaded", () => {
+  registerPricingPanelToggler();
+});

dnscms/dnscms/wagtail_hooks.py

@@ -1,5 +1,7 @@
 from django.contrib.admin.utils import quote
+from django.templatetags.static import static
 from django.urls import reverse
+from django.utils.html import format_html
 from wagtail import hooks
 from wagtail.admin.menu import MenuItem
 
@@ -47,3 +49,8 @@ def make_publish_default_action(menu_items, request, context):
             menu_items.pop(index)
             menu_items.insert(0, item)
             break
+
+
+@hooks.register("insert_editor_js")
+def editor_js():
+    return format_html('<script src="{}"></script>', static("js/page-editor.js"))