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<!DOCTYPE HTML>
<html>
<!--
Verifies that cancelFullScreen() rolls back to have the previous full-screen
element full-screen.
Tests:
* Request full-screen in doc.
* Request full-screen in doc on element not descended from full-screen element.
* Cancel full-screen, FSE should rollback to previous FSE.
* Request full-screen in subdoc.
* Cancel full-screen in subdoc, doc should be full-screen.
* Request full-screen in subdoc.
* Removing FSE should fully-exit full-screen.
-->
<head>
<script src="/tests/SimpleTest/SimpleTest.js"></script>
<script src="/tests/SimpleTest/EventUtils.js"></script>
<script type="application/javascript" src="file_fullscreen-utils.js"></script>
</head>
<body>
<div id="fse">
<div id="fse-inner">
<iframe id="subdoc" allowfullscreen srcdoc="<html><body bgcolor='black'></body></html>"></iframe>
</div>
</div>
<div id="non-fse"></div>
<script type="application/javascript">
function ok(condition, msg) {
opener.ok(condition, "[rollback] " + msg);
if (!condition) {
opener.finish();
}
}
function is(a, b, msg) {
opener.is(a, b, "[rollback] " + msg);
if (a != b) {
opener.finish();
}
}
function enterFullscreen(element, callback) {
addFullscreenChangeContinuation("enter", callback);
element.focus();
element.requestFullscreen();
}
function revertFullscreen(doc, callback) {
ok(doc.fullscreenElement != null, "Should only exit fullscreen on a fullscreen doc");
addFullscreenChangeContinuation("exit", callback, doc);
doc.exitFullscreen();
}
function e(id) {
return document.getElementById(id);
}
function requestFullscreen(element) {
element.focus();
element.requestFullscreen();
}
function begin() {
enterFullscreen(e("fse"), change1);
}
function change1() {
is(document.fullscreenElement, e("fse"), "Body should be FSE");
// Request full-screen from element not descendent from current FSE.
enterFullscreen(e("non-fse"), change2);
}
function change2() {
is(document.fullscreenElement, e("non-fse"), "FSE should be e('non-fse')");
revertFullscreen(document, change3);
}
function change3() {
is(document.fullscreenElement, e("fse"), "FSE should rollback to FSE.");
var iframe = e("subdoc");
enterFullscreen(iframe.contentDocument.body, change4);
}
function change4() {
var iframe = e("subdoc");
is(document.fullscreenElement, iframe, "Subdoc container should be FSE.");
is(iframe.contentDocument.fullscreenElement, iframe.contentDocument.body, "Subdoc body should be FSE in subdoc");
revertFullscreen(document, change5);
}
function change5() {
is(document.fullscreenElement, e("fse"), "FSE should rollback to FSE.");
revertFullscreen(document, change6);
}
function change6() {
is(document.fullscreenElement, null, "Should have left full-screen entirely");
enterFullscreen(e("fse"), change7);
}
function change7() {
is(document.fullscreenElement, e("fse"), "FSE should be e('fse')");
enterFullscreen(e("fse-inner"), change8);
}
function change8() {
var element = e('fse-inner');
is(document.fullscreenElement, element, "FSE should be e('fse-inner')");
// We're breaking out of two levels of fullscreen by removing the
// fullscreenElement. To make our helper functions work correctly,
// we set the fullscreenChangeEnters value to 1. This is a hack, but
// it is a hack that supports the expected behavior.
setFullscreenChangeEnters(1);
addFullscreenChangeContinuation("exit", change9);
info(`Removing FSE should exit fullscreen.`);
element.remove();
}
function change9() {
is(document.fullscreenElement, null, "Should have fully exited full-screen mode when removed FSE from doc");
opener.nextTest();
}
</script>
</pre>
</body>
</html>