document-onfullscreenchange.html

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This WPT test may be referenced by the following Test IDs:
- /fullscreen/api/document-onfullscreenchange.html - WPT Dashboard Interop Dashboard

<!DOCTYPE html>

<title>Document#onfullscreenchange</title>

<script src="/resources/testharness.js"></script>

<script src="/resources/testharnessreport.js"></script>

<script src="/resources/testdriver.js"></script>

<script src="/resources/testdriver-vendor.js"></script>

<script src="../trusted-click.js"></script>

<div id="log"></div>

<script>

    promise_test(async (t) => {

        const div = document.querySelector("div");

        assert_equals(

            document.onfullscreenchange,

            null,

            "initial onfullscreenchange"

);

        const [, event] = await Promise.all([

            trusted_request(div),

            new Promise((r) =>

                document.addEventListener("fullscreenchange", r)

),

]);

        assert_true(event instanceof Event);

        assert_equals(event.target, div);

    }, "Checks that the fullscreenchange event is fired when entering fullscreen");

</script>