65 lines
3.2 KiB
HTML
65 lines
3.2 KiB
HTML
<!DOCTYPE html>
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<title>Document#exitFullscreen() for nested fullscreen inside an iframe</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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<iframe allowfullscreen></iframe>
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<script>
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async function fullscreenNestedElements(t, iframe, outer, inner) {
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// First request fullscreen for the outer element.
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await Promise.all([fullScreenChange(), fullScreenChange(iframe.contentDocument), trusted_request(outer)]);
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assert_equals(document.fullscreenElement, iframe);
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assert_equals(iframe.contentDocument.fullscreenElement, outer);
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document.onfullscreenchange = t.unreached_func(
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"fullscreenchange event should not be emitted a second time for parent document."
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);
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// Then request fullscreen for the inner element.
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await Promise.all([fullScreenChange(iframe.contentDocument), trusted_request(inner)]);
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assert_equals(document.fullscreenElement, iframe);
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assert_equals(iframe.contentDocument.fullscreenElement, inner);
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document.onfullscreenchange = null;
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}
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promise_test(async (t) => {
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const iframe = document.querySelector("iframe");
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await new Promise((resolve) => {
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iframe.onload = resolve;
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iframe.srcdoc = "<div id='outer'><div id='inner'></div></div>";
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});
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const iframeDoc = iframe.contentDocument;
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const outer = iframeDoc.getElementById("outer");
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const inner = iframeDoc.getElementById("inner");
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// Fullscreen outer, then inner, 2 elements in toplayer of <iframe>
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await fullscreenNestedElements(t, iframe, outer, inner);
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// Check if iframe sees (fullscreenchange, element) as per spec
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await Promise.all([fullScreenChange(iframeDoc), iframeDoc.exitFullscreen()]);
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// First iframe.contentDocument.exitFullscreen()
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// should only remove 1 from the top layer of iframe
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assert_equals(iframeDoc.fullscreenElement, outer);
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assert_equals(document.fullscreenElement, iframe);
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// Second exitFullscreen should exit fully from fullscreen, as stated by
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// https://fullscreen.spec.whatwg.org/#collect-documents-to-unfullscreen, since
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// all documents are now simple fullscreen documents
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// https://fullscreen.spec.whatwg.org/#simple-fullscreen-document
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await Promise.all([fullScreenChange(document), iframeDoc.exitFullscreen()]);
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assert_equals(iframeDoc.fullscreenElement, null);
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assert_equals(document.fullscreenElement, null);
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await fullscreenNestedElements(t, iframe, outer, inner);
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// Exit the top level document from fullscreen - should exit all documents below it as
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// per step 13 & 15 in https://fullscreen.spec.whatwg.org/#exit-fullscreen
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await Promise.all([fullScreenChange(document), document.exitFullscreen()]);
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assert_equals(iframeDoc.fullscreenElement, null);
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assert_equals(document.fullscreenElement, null);
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}, "Exit fullscreen for nested fullscreen inside an iframe");
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</script>
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