| <!DOCTYPE html> |
| <title>Element#requestFullscreen() on two elements in different iframes</title> |
| <meta name="timeout" content="long"> |
| <script src="/resources/testharness.js"></script> |
| <script src="/resources/testharnessreport.js"></script> |
| <script src="../trusted-click.js"></script> |
| <div id="log"></div> |
| <iframe id="a" allowfullscreen></iframe> |
| <iframe id="b" allowfullscreen></iframe> |
| <script> |
| async_test(t => { |
| // Request fullscreen on the body elements of both iframes, but in reverse |
| // tree order. |
| const a = document.getElementById('a'); |
| const b = document.getElementById('b'); |
| |
| // Expect two fullscreenchange events, with document.fullscreenElement |
| // changing in the same order as the requests. (Events should also fire on the |
| // iframes' documents, but this is not covered by this test.) |
| const order = []; |
| document.onfullscreenchange = t.step_func(() => { |
| assert_in_array(document.fullscreenElement, [a, b]); |
| order.push(document.fullscreenElement.id); |
| if (order.length == 2) { |
| // When the second event arrived, the fullscreen element may still be the |
| // old one. |
| // |
| // TODO(mustaq): We need a better explanation here to cover the tree-order |
| // idea of the spec. |
| assert_true(order[0] == 'a' || order[0] == 'b', 'first id seen is a or b'); |
| assert_equals(order[1], 'a', 'second id seen is a'); |
| t.done(); |
| } |
| }); |
| document.onfullscreenerror = t.unreached_func('fullscreenerror event'); |
| |
| // Make a trusted click on frame 'b' to activate it. |
| trusted_click(t, () => { |
| // Now queue a trusted click on frame 'a' to make back-to-back calls. |
| setTimeout(() => { |
| trusted_click(t, () => { |
| b.contentDocument.body.requestFullscreen(); |
| a.contentDocument.body.requestFullscreen(); |
| }, a.contentDocument.body); |
| }, 0); |
| }, b.contentDocument.body); |
| }); |
| </script> |
