1 files changed, 41 insertions, 0 deletions
diff --git a/browser/extensions/webcompat/injections/js/bug1605611-maps.google.com-directions-time.js b/browser/extensions/webcompat/injections/js/bug1605611-maps.google.com-directions-time.js
new file mode 100644
index 0000000000..7c2c9be7bc
--- /dev/null
+++ b/browser/extensions/webcompat/injections/js/bug1605611-maps.google.com-directions-time.js
@@ -0,0 +1,41 @@
+"use strict";
+
+/* globals exportFunction */
+
+/**
+ * Bug 1605611 - Cannot change Departure/arrival dates in Google Maps on Android
+ *
+ * This patch re-enables the disabled "Leave now" button.
+ *
+ * See https://bugzilla.mozilla.org/show_bug.cgi?id=1605611 for details.
+ */
+
+document.addEventListener("DOMContentLoaded", () => {
+  // In case the element appeared before the MutationObserver was activated.
+  for (const elem of document.querySelectorAll(".ml-icon-access-time")) {
+    elem.parentNode.disabled = false;
+  }
+  // Start watching for the insertion of the "Leave now" button.
+  const moOptions = {
+    attributeFilter: ["disabled"],
+    attributes: true,
+    subtree: true,
+  };
+  const mo = new MutationObserver(function(records) {
+    let restore = false;
+    for (const { target } of records) {
+      if (target.querySelector(".ml-icon-access-time")) {
+        if (!restore) {
+          restore = true;
+          mo.disconnect();
+        }
+
+        target.disabled = false;
+      }
+    }
+    if (restore) {
+      mo.observe(document.body, moOptions);
+    }
+  });
+  mo.observe(document.body, moOptions);
+});