Focusin/focusout events for triggers

Author: di

warehouse/static/js/warehouse/index.js

@@ -147,6 +147,18 @@ docReady(() => {
   }
 });
 
+docReady(() => {
+  let dropdownTriggers = document.querySelectorAll("li.dropdown__trigger");
+  for (let trigger of dropdownTriggers) {
+    trigger.addEventListener("focusin", function () {
+      trigger.querySelector("ul.dropdown__content").style.display = "block";
+    });
+    trigger.addEventListener("focusout", function () {
+      trigger.querySelector("ul.dropdown__content").style.display = "none";
+    });
+  }
+});
+
 const application = Application.start();
 const context = require.context("./controllers", true, /\.js$/);
 application.load(definitionsFromContext(context));