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<!DOCTYPE html>
<title>Display-capture request delegation test</title>
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<script src="/resources/testdriver.js"></script>
<script src="/resources/testdriver-actions.js"></script>
<script src="/resources/testdriver-vendor.js"></script>
<div>
Verifies that getDisplayMedia() calls from a cross-origin subframe without user activation
works if and only if the top frame has user activation and it delegates the capability to the
subframe.
</div>
<iframe allow="display-capture" width="300px" height="50px"
src="https://{{hosts[alt][www]}}:{{ports[https][0]}}/screen-capture/resources/delegate-request-subframe.sub.html">
</iframe>
<script>
// 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);
});
}
promise_setup(async () => {
// Make sure the iframe has loaded.
await getMessageData("subframe-loaded", frames[0]);
});
const target_origin = "https://{{hosts[alt][www]}}:{{ports[https][0]}}";
const request = {"type": "make-display-capture-request"};
promise_test(async () => {
let result_promise = getMessageData("result", frames[0]);
frames[0].postMessage(request, {targetOrigin: target_origin});
let data = await result_promise;
assert_equals(data.result, "failure");
}, "Display-capture request from a subframe fails without delegation when the top frame has no user activation");
promise_test(async () => {
let result_promise = getMessageData("result", frames[0]);
await test_driver.bless();
frames[0].postMessage(request, {targetOrigin: target_origin});
let data = await result_promise;
assert_equals(data.result, "failure");
}, "Display-capture request from a subframe fails without delegation when the top frame has user activation");
promise_test(async () => {
{
let result_promise = getMessageData("result", frames[0]);
await test_driver.bless();
frames[0].postMessage(request, {targetOrigin: target_origin,
delegate: "display-capture"});
let data = await result_promise;
assert_equals(data.result, "success");
}
{
// Check display-capture request can be consumed only once.
let result_promise = getMessageData("result", frames[0]);
frames[0].postMessage(request, {targetOrigin: target_origin});
let data = await result_promise;
assert_equals(data.result, "failure");
}
}, "Display-capture request from a subframe succeeds with delegation when the top frame has user activation");
</script>
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