Kagami Sascha Rosylight
56a8f66ede
Differential Revision: https://phabricator.services.mozilla.com/D294960
40 lines
1.6 KiB
HTML
40 lines
1.6 KiB
HTML
<!DOCTYPE html>
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<title>Element#requestFullscreen() on the current fullscreen element</title>
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<script src="/resources/testharness.js"></script>
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<script src="/resources/testharnessreport.js"></script>
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<script src="/resources/testdriver.js"></script>
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<script src="/resources/testdriver-vendor.js"></script>
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<script src="../trusted-click.js"></script>
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<div id="log"></div>
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<script>
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promise_test(async (t) => {
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t.add_cleanup(() => {
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if (document.fullscreenElement) return document.exitFullscreen();
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});
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document.onfullscreenerror = t.unreached_func("fullscreenerror event");
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// Use the body element as the fullscreen element, because the second
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// test_driver.bless() call needs to insert a button inside of it, which
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// can't be clicked if another element is already fullscreen.
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const target = document.body;
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// First enter fullscreen.
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await Promise.all([
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fullScreenChange(),
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test_driver.bless("fullscreen", () => target.requestFullscreen()),
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]);
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assert_equals(document.fullscreenElement, target, "fullscreen element after first request");
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// The next requestFullscreen() should fire no events due to "If element is
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// doc's fullscreen element, terminate these subsubsteps."
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document.onfullscreenchange = t.unreached_func(
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"fullscreenchange event"
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);
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// Now request fullscreen again, which should be a no-op.
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await test_driver.bless("fullscreen", () => target.requestFullscreen());
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assert_equals(document.fullscreenElement, target, "fullscreen element after second request");
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});
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</script>
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