WD-26684 - Fix bug with dropdown preventing clicks when closed

static/js/base/global-nav.ts

@@ -1,5 +1,63 @@
 import { createNav } from "@canonical/global-nav";
 
+/**
+ * Add custom listeners to control animation of dropdowns and be able to remove the
+ * display of some hidden elements from global-nav that block clicks for underneath
+ * elements (see WD-26684).
+ *
+ * We must set these listeners before the global-nav sets its own listeners for them
+ * to work properly.
+ */
+
+const DROPDOWN_ANIMATION_DURATION = 333;
+const toggles = [
+  ...document.querySelectorAll(
+    ".p-navigation__nav .p-navigation__link[aria-controls]:not(.js-back-button)",
+  ),
+].filter((element) => element.id !== "all-canonical-link");
+
+const toggleAnimationPlaying = (element: Element) => {
+  const endAnimation = () => {
+    element.classList.toggle("js-animation-playing", false);
+  };
+
+  element.classList.toggle("js-animation-playing", true);
+  setTimeout(endAnimation, DROPDOWN_ANIMATION_DURATION);
+};
+
+const setAnimationPlaying = () => {
+  // get all open toggles to add the animation playing to them
+  toggles
+    .filter(
+      (toggle: Element): toggle is Element =>
+        toggle.parentElement != null &&
+        toggle.parentElement.classList.contains("is-active"),
+    )
+    .forEach((toggle: Element) => {
+      toggleAnimationPlaying(toggle.parentElement!);
+    });
+};
+
+const handleToggle = (e: Event, toggle: Element) => {
+  e.preventDefault();
+
+  const toggleParent = toggle.parentElement;
+  if (toggleParent) {
+    toggleAnimationPlaying(toggleParent);
+  }
+
+  e.stopPropagation();
+};
+
+toggles.forEach((toggle: Element) => {
+  const handler = (e: Event) => handleToggle(e, toggle);
+  toggle.addEventListener("click", handler);
+});
+
+// when clicking outside navigation, set js-animation-playing on all open dropdowns
+document.addEventListener("click", setAnimationPlaying);
+
+// Once our listeners are added then we run global-nav, which will add others
 window.addEventListener("DOMContentLoaded", function () {
   createNav({ isSliding: true, closeMenuAnimationDuration: 200 });
 });

static/sass/_snapcraft_p-navigation.scss

@@ -69,7 +69,7 @@
       .p-navigation__dropdown--container {
         // a bit extra % to be able to show the shadow of the box if present
         clip-path: rect(0 105% 105% 0);
-        display: block;
+        display: none;
         min-width: 100%;
         position: absolute;
 
@@ -91,6 +91,11 @@
           }
         }
       }
+
+      .js-animation-playing .p-navigation__dropdown--container,
+      .is-active .p-navigation__dropdown--container {
+        display: block;
+      }
     }
   }
 }