1 files changed, 25 insertions, 0 deletions
diff --git a/testing/web-platform/tests/clipboard-apis/resources/user-activation.js b/testing/web-platform/tests/clipboard-apis/resources/user-activation.js
new file mode 100644
index 0000000000..ed294bb9cb
--- /dev/null
+++ b/testing/web-platform/tests/clipboard-apis/resources/user-activation.js
@@ -0,0 +1,25 @@
+'use strict';
+
+// In order to use this function, please import testdriver.js and
+// testdriver-vendor.js, and include a <body> element.
+async function waitForUserActivation() {
+  if (window.opener) {
+    throw new Error(
+        "waitForUserActivation() only works in the top-level frame");
+  }
+  const loadedPromise = new Promise(resolve => {
+    if(document.readyState == 'complete') {
+      resolve();
+      return;
+    }
+    window.addEventListener('load', resolve, {once: true});
+  });
+  await loadedPromise;
+
+  const clickedPromise = new Promise(resolve => {
+    document.body.addEventListener('click', resolve, {once: true});
+  });
+
+  test_driver.click(document.body);
+  await clickedPromise;
+}