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<!DOCTYPE HTML>
<html>
<!--
https://bugzilla.mozilla.org/show_bug.cgi?id=1369072
-->
<head>
<title>Test for Bug 1369072</title>
<script src="/tests/SimpleTest/SimpleTest.js"></script>
<script src="/tests/SimpleTest/EventUtils.js"></script>
<script src="/tests/SimpleTest/paint_listener.js"></script>
<script src="/tests/gfx/layers/apz/test/mochitest/apz_test_utils.js"></script>
<link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css"/>
</head>
<body>
<a target="_blank" href="https://bugzilla.mozilla.org/show_bug.cgi?id=1369072">Mozilla Bug 1369072</a>
<div id="display">
<iframe id="iframe" srcdoc="<a id='anchor' href='about:home'>anchor text</a><div id='div'></div>" style="width: 300px; height: 300px;"></iframe>
<!-- make <body> contents overflow -->
<div style="width: 1000px; height: 1000px;"></div>
</div>
<div id="content" style="display: none">
</div>
<pre id="test">
<script type="application/javascript">
SimpleTest.waitForExplicitFinish();
SimpleTest.waitForFocus(runTests, window);
function ok()
{
window.opener.ok.apply(window.opener, arguments);
}
function is()
{
window.opener.is.apply(window.opener, arguments);
}
async function runTests()
{
await SpecialPowers.pushPrefEnv({
set: [
["general.smoothScroll", false],
["toolkit.scrollbox.verticalScrollDistance", 20],
["toolkit.scrollbox.horizontalScrollDistance", 20],
],
});
var iframe = document.getElementById("iframe");
var anchor = iframe.contentDocument.getElementById("anchor");
var div = iframe.contentDocument.getElementById("div");
async function resetScroll()
{
var oldFocus = document.activeElement;
var oldFrameFocus = iframe.contentDocument.activeElement;
// Cancel any scroll animation on the target scroll elements to make sure
// setting scrollTop or scrolLeft works as expected.
// cancelScrollAnimation clears focus, so make sure to restore it.
await cancelScrollAnimation(document.documentElement);
await cancelScrollAnimation(iframe.contentDocument.documentElement);
oldFocus.focus();
oldFrameFocus.focus();
return new Promise(resolve => {
var scrollParent = document.documentElement.scrollTop || document.documentElement.scrollLeft;
var scrollChild = iframe.contentDocument.documentElement.scrollTop || iframe.contentDocument.documentElement.scrollLeft;
if (scrollParent) {
window.addEventListener("scroll", () => {
scrollParent = false;
if (!scrollChild) {
SimpleTest.executeSoon(resolve);
}
}, { once: true });
}
if (scrollChild) {
iframe.contentWindow.addEventListener("scroll", () => {
scrollChild = false;
if (!scrollParent) {
SimpleTest.executeSoon(resolve);
}
}, { once: true });
}
document.documentElement.scrollTop = 0;
document.documentElement.scrollLeft = 0;
iframe.contentDocument.documentElement.scrollTop = 0;
iframe.contentDocument.documentElement.scrollLeft = 0;
if (!scrollParent && !scrollChild) {
SimpleTest.executeSoon(resolve);
}
});
}
async function tryToScrollWithKey(aVertical)
{
await resetScroll();
return new Promise(resolve => {
// Wait scroll event
function onScroll() {
SimpleTest.executeSoon(resolve);
}
window.addEventListener("scroll", onScroll, { once: true });
iframe.contentWindow.addEventListener("scroll", onScroll, { once: true });
if (aVertical) {
synthesizeKey("KEY_ArrowDown");
} else {
synthesizeKey("KEY_ArrowRight");
}
});
}
// When iframe element has focus and the iframe document isn't scrollable, the parent document should be scrolled instead.
document.body.focus();
iframe.focus();
await tryToScrollWithKey(true);
ok(document.documentElement.scrollTop > 0, "ArrowDown keydown event at the iframe whose content is not scrollable should cause scrolling the parent document");
await tryToScrollWithKey(false);
ok(document.documentElement.scrollLeft > 0, "ArrowRight keydown event at the iframe whose content is not scrollable should cause scrolling the parent document");
await resetScroll();
// When iframe element has focus and the iframe document scrollable, the parent document shouldn't be scrolled.
document.body.focus();
div.style.height = "1000px";
div.style.width = "1000px";
iframe.focus();
await tryToScrollWithKey(true);
is(document.documentElement.scrollTop, 0, "ArrowDown keydown event at the iframe whose content is scrollable shouldn't cause scrolling the parent document");
ok(iframe.contentDocument.documentElement.scrollTop > 0, "ArrowDown keydown event at the iframe whose content is scrollable should cause scrolling the iframe document");
await tryToScrollWithKey(false);
is(document.documentElement.scrollLeft, 0, "ArrowRight keydown event at the iframe whose content is scrollable shouldn't cause scrolling the parent document");
ok(iframe.contentDocument.documentElement.scrollLeft > 0, "ArrowRight keydown event at the iframe whose content is scrollable should cause scrolling the iframe document");
await resetScroll();
// If iframe document cannot scroll to specific direction, parent document should be scrolled instead.
div.style.height = "1px";
div.style.width = "1000px";
iframe.focus();
await tryToScrollWithKey(true);
ok(document.documentElement.scrollTop > 0, "ArrowDown keydown event at the iframe whose content is scrollable only horizontally should cause scrolling the parent document");
await tryToScrollWithKey(false);
is(document.documentElement.scrollLeft, 0, "ArrowRight keydown event at the iframe whose content is scrollable only horizontally shouldn't cause scrolling the parent document");
ok(iframe.contentDocument.documentElement.scrollLeft > 0, "ArrowRight keydown event at the iframe whose content is scrollable only horizontally should cause scrolling the iframe document");
await resetScroll();
div.style.height = "1000px";
div.style.width = "1px";
iframe.focus();
await tryToScrollWithKey(true);
is(document.documentElement.scrollTop, 0, "ArrowDown keydown event at the iframe whose content is scrollable only vertically shouldn't cause scrolling the parent document");
ok(iframe.contentDocument.documentElement.scrollTop > 0, "ArrowDown keydown event at the iframe whose content is scrollable only vertically should cause scrolling the iframe document");
await tryToScrollWithKey(false);
ok(document.documentElement.scrollLeft > 0, "ArrowRight keydown event at the iframe whose content is scrollable only vertically should cause scrolling the parent document");
await resetScroll();
// Hidden iframe shouldn't consume keyboard events if it was not scrollable.
document.body.focus();
anchor.focus();
iframe.style.display = "none";
await tryToScrollWithKey(true);
ok(document.documentElement.scrollTop > 0, "ArrowDown keydown event after hiding the iframe should cause scrolling the parent document");
await tryToScrollWithKey(false);
ok(document.documentElement.scrollLeft > 0, "ArrowRight keydown event after hiding the iframe should cause scrolling the parent document");
await resetScroll();
// Make sure the result visible in the viewport.
document.documentElement.scrollTop = 0;
document.documentElement.scrollLeft = 0;
window.opener.finish();
}
</script>
</pre>
</body>
</html>
|
