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<!DOCTYPE html>
<meta name="timeout" content="long">
<title>Window Management test: target-screen element.requestFullscreen()</title>
<link rel="help" href="https://w3c.github.io/window-management/">
Tests use of multi-screen details to move fullscreen between screens.<br>
The host device must have 2+ screens to yield meaningful results.<br><br>
<ul id="list"></ul>
<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="resources/helpers.js"></script>
<script>
'use strict';
promise_test(async test => {
await setUpWindowManagement(test);
const originalScreen = window.screenDetails.currentScreen;
// Request fullscreen on the current screen; the window should stay there.
await buttonClick(test, `Request fullscreen on '${originalScreen.label}'`);
await document.documentElement.requestFullscreen({ screen: originalScreen });
await assertWindowOnScreen(window, originalScreen);
assert_true(!!document.fullscreenElement);
for (const s of window.screenDetails.screens) {
// Request fullscreen on screen `s`; `window` should move there.
await buttonClick(test, `Request fullscreen on '${s.label}'`);
await document.documentElement.requestFullscreen({ screen: s });
await assertWindowOnScreen(window, s);
assert_true(!!document.fullscreenElement);
}
// Exit fullscreen; `window` should move back to `originalScreen`.
await buttonClick(test, `Exit fullscreen`);
await document.exitFullscreen();
await assertWindowOnScreen(window, originalScreen);
assert_false(!!document.fullscreenElement);
}, 'Use multi-screen details to move fullscreen between screens');
</script>
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