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<!DOCTYPE html>
<title>Element#requestFullscreen() timing</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');
// If fullscreenchange is an animation frame event, then animation frame
// callbacks should be run after it is fired, before the timer callback.
// The resize event should fire before the fullscreenchange event.
const events = [];
const p = new Promise(resolve => {
const callback = t.step_func(event => {
// fullscreenElement should have changed before either event is fired.
assert_equals(document.fullscreenElement, div, `fullscreenElement in {event.type} event`);
events.push(event.type);
if (event.type == 'fullscreenchange') {
step_timeout(t.unreached_func('timer callback'));
requestAnimationFrame(t.step_func_done(() => {
// Removed 'resize' expectation for now, see https://crbug.com/381127087.
assert_array_equals(events, ['fullscreenchange'], 'event order');
resolve();
}));
}
});
document.onfullscreenchange = window.onresize = callback;
});
await trusted_request(div);
await p;
// so the user doesn't have to exit for themselves
document.exitFullscreen();
}, 'Timing of fullscreenchange and resize events');
async_test(t => {
// Gecko throttles requestAnimationFrame before the first paint, so
// wrap the test to work around that.
requestAnimationFrame(t.step_func(() => {
var promise = document.createElement('a').requestFullscreen();
var promise_executed = false;
promise.catch(()=>{promise_executed = true; });
// If fullscreenerror is an animation frame event, then animation frame
// callbacks should be run after it is fired, before the timer callback.
document.onfullscreenerror = t.step_func(() => {
assert_true(promise_executed, "promise executed");
step_timeout(t.unreached_func('timer callback'));
requestAnimationFrame(t.step_func_done());
});
}));
}, 'Timing of fullscreenerror event');
</script>
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