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<!DOCTYPE>
<html>
<head>
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>Checking zoomToFocusedInput scrolls that focused element is into iframe</title>
<script type="application/javascript" src="apz_test_utils.js"></script>
<script type="application/javascript" src="apz_test_native_event_utils.js"></script>
<script src="/tests/SimpleTest/paint_listener.js"></script>
</head>
<body>
<div style="height: 8000px;">ABC</div>
<iframe style="height: 30em;" src="helper_iframe_textarea.html"></iframe>
</div>
<!-- Leave additional room below the element so it can be scrolled to the center -->
<div style="height: 1000px;">ABC</div>
<script type="application/javascript">
async function test() {
let utils = SpecialPowers.getDOMWindowUtils(window);
let iframe = document.querySelector("iframe");
let textarea = iframe.contentDocument.querySelector("textarea");
for (let i = 0; i < 20; i++) {
textarea.value += "foo\n";
}
let win = iframe.contentWindow;
iframe.focus();
textarea.focus();
await waitToClearOutAnyPotentialScrolls(win);
textarea.setSelectionRange(0, 0);
window.scrollTo(0, 0);
await waitToClearOutAnyPotentialScrolls(win);
is(0, window.scrollY, "scroll position is reset");
let transformEndPromise = promiseTransformEnd();
utils.zoomToFocusedInput();
await promiseApzFlushedRepaints();
ok(window.scrollY > 0, "scroll position isn't top");
ok(iframe.contentWindow.scrollY > 0, "scroll position into iframe isn't top");
let prevPosY = window.scrollY;
await transformEndPromise;
await promiseApzFlushedRepaints();
window.scrollTo(0, 0);
await waitToClearOutAnyPotentialScrolls(win);
is(0, window.scrollY, "scroll position is reset");
textarea.setSelectionRange(textarea.value.length, textarea.value.length);
transformEndPromise = promiseTransformEnd();
utils.zoomToFocusedInput();
await transformEndPromise;
await promiseApzFlushedRepaints();
ok(window.scrollY > 0, "scroll position isn't top");
ok(iframe.contentWindow.scrollY > 0, "scroll position into iframe isn't top");
ok(prevPosY < window.scrollY,
"scroll position is different from first line of textarea");
}
waitUntilApzStable().then(test).then(subtestDone, subtestFailed);
</script>
</body>
</html>
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