Adding upstream version 110.0.1.upstream/110.0.1upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 55 insertions, 0 deletions

diff --git a/testing/web-platform/tests/html/capability-delegation/resources/utils.js b/testing/web-platform/tests/html/capability-delegation/resources/utils.js
new file mode 100644
index 0000000000..37c0226be7
--- /dev/null
+++ b/testing/web-platform/tests/html/capability-delegation/resources/utils.js
@@ -0,0 +1,55 @@
+// Returns a Promise that gets resolved with `event.data` when `window` receives from `source` a
+// "message" event whose `event.data.type` matches the string `message_data_type`.
+function getMessageData(message_data_type, source) {
+    return new Promise(resolve => {
+        function waitAndRemove(e) {
+            if (e.source != source || !e.data || e.data.type != message_data_type)
+                return;
+            window.removeEventListener("message", waitAndRemove);
+            resolve(e.data);
+        }
+        window.addEventListener("message", waitAndRemove);
+    });
+}
+
+// A helper that simulates user activation on the current frame if `activate` is true, then posts
+// `message` to `frame` with the target `origin` and specified `capability` to delegate. This helper
+// awaits and returns a Promise fulfilled with the result message sent in reply from `frame`.
+// However, if the `postMessage` call fails, the helper returns a Promise rejected with the
+// exception.
+async function postCapabilityDelegationMessage(frame, message, origin, capability, activate) {
+    let result_promise = getMessageData("result", frame);
+
+    if (activate)
+        await test_driver.bless();
+
+    let postMessageOptions = {targetOrigin: origin};
+    if (capability)
+        postMessageOptions["delegate"] = capability;
+    try {
+        frame.postMessage(message, postMessageOptions);
+    } catch (exception) {
+        return Promise.reject(exception);
+    }
+
+    return await result_promise;
+}
+
+// Returns the name of a capability for which `postMessage` delegation is supported by the user
+// agent, or undefined if no such capability is found.
+async function findOneCapabilitySupportingDelegation() {
+  const capabilities = ["fullscreen", "payment"];
+
+  for (let i = 0; i < capabilities.length; i++) {
+    try {
+      await postCapabilityDelegationMessage(window, "any_message", "/", capabilities[i], false);
+      assert_unreached();
+    } catch (exception) {
+      if (exception.name != "NotSupportedError")
+          return capabilities[i];
+      // Ignore all other exceptions to continue searching through the list.
+    }
+  };
+
+  return undefined;
+}