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<!doctype html>
<title>Test for bug 1617342</title>
<script src="/tests/SimpleTest/SimpleTest.js"></script>
<script src="/tests/SimpleTest/EventUtils.js"></script>
<style>
:root {
scroll-padding: 100px 0;
}
body {
margin: 0;
}
#fixed-footer {
height: 100px;
position: fixed;
bottom: 0;
left: 0;
width: 100%;
background: green;
}
#fixed-header {
height: 100px;
position: fixed;
top: 0;
left: 0;
width: 100%;
background: green;
}
.almost-full-padding {
height: calc(100vh - 200px);
}
.padding {
height: 100vh;
}
</style>
<div id="fixed-header"></div>
<div class="padding"></div>
<input>
<div class="almost-full-padding"></div>
<input>
<div class="padding"></div>
<input id="end">
<div class="padding"></div>
<div id="fixed-footer"></div>
<script>
SimpleTest.waitForExplicitFinish();
SimpleTest.waitForFocus(async function() {
let stack = [];
let end = document.getElementById("end");
let lastActiveElement = document.activeElement;
do {
synthesizeKey("KEY_Tab");
is(document.activeElement.tagName, "INPUT", "Should focus inputs only, there's nothing else");
isnot(document.activeElement, lastActiveElement, "Focus should've moved once per tab keypress");
let rect = document.activeElement.getBoundingClientRect();
ok(rect.top >= 100, "Should not be covered by top bar");
ok(rect.bottom >= 100, "Should not be covered by bottom bar");
lastActiveElement = document.activeElement;
stack.push(lastActiveElement);
} while (document.activeElement != end)
do {
let previous = stack.pop();
let rect = document.activeElement.getBoundingClientRect();
ok(rect.top >= 100, "Should not be covered by top bar");
ok(rect.bottom >= 100, "Should not be covered by bottom bar");
is(document.activeElement, previous, "Focus should've moved backwards as expected");
synthesizeKey("KEY_Tab", {shiftKey: true});
} while (stack.length);
SimpleTest.finish();
});
</script>
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