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65 lines
2.3 KiB
HTML
65 lines
2.3 KiB
HTML
<!DOCTYPE html>
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<!--
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Tentative due to:
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https://github.com/whatwg/fullscreen/issues/152
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-->
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<title>Element#requestFullscreen() on two elements in different iframes</title>
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<meta name="timeout" content="long">
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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="../trusted-click.js"></script>
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<div id="log"></div>
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<iframe id="a" allowfullscreen></iframe>
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<iframe id="b" allowfullscreen></iframe>
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<script>
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promise_test(async (test) => {
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// Request fullscreen on the body elements of both iframes, but in reverse
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// tree order.
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const a = document.getElementById('a');
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const b = document.getElementById('b');
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var rejected = false;
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// Expect two fullscreenchange events, with document.fullscreenElement
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// changing in the same order as the requests. (Events should also fire on the
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// iframes' documents, but this is not covered by this test.)
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const order = [];
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const fullscreenChangePromise = new Promise((resolve, reject) => {
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document.onfullscreenchange = test.step_func(() => {
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assert_in_array(document.fullscreenElement, [a, b]);
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order.push(document.fullscreenElement.id);
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if (order.length == 2) {
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// When the second event arrived, the fullscreen element may still be the
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// old one.
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//
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// TODO(mustaq): We need a better explanation here to cover the tree-order
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// idea of the spec.
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assert_true(order[0] == 'a' || order[0] == 'b', 'first id seen is a or b');
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assert_true(order[1] == 'a', 'second id seen is a');
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}
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resolve();
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});
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});
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const fullscreenErrorPromise = new Promise((resolve, reject) => {
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document.onfullscreenerror = test.step_func(() => {
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resolve();
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});
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});
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// Make a trusted click on frame 'b' to activate it.
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trusted_click(test, () => {
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// Now queue a trusted click on frame 'a' to make back-to-back calls.
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setTimeout(() => {
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trusted_click(test, () => {
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b.contentDocument.body.requestFullscreen();
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a.contentDocument.body.requestFullscreen().catch(test.step_func_done());
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}, a.contentDocument.body);
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}, 0);
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}, b.contentDocument.body);
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await Promise.all([
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fullscreenChangePromise,
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fullscreenErrorPromise,
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]);
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});
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</script>
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