element-request-fullscreen-same.html

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

<!DOCTYPE html>

<title>Element#requestFullscreen() on the current fullscreen element</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>

<div id="target"></div>

<script>

    promise_test(async (t) => {

        const target = document.getElementById("target");

        document.onfullscreenerror = t.unreached_func("fullscreenerror event");

        await Promise.all([

            fullScreenChange(),

            trusted_request(target),

]);

        assert_equals(document.fullscreenElement, target);

        // The next requestFullscreen() should fire no events due to "If element is

        // doc's fullscreen element, terminate these subsubsteps."

        document.onfullscreenchange = t.unreached_func(

            "fullscreenchange event"

);

        await trusted_click(target);

        await target.requestFullscreen();

        assert_equals(document.fullscreenElement, target);

        // Wait until after the next animation frame.

        await new Promise((r) => requestAnimationFrame(r));

    }, "Element#requestFullscreen() on the current fullscreen element");

</script>