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Update web-platform-tests to revision 45d92ebc552d67936169a17e86980636b112bf18

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WPT Sync Bot 2018-03-27 21:22:22 -04:00
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commit ba1004338e
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tests/wpt/web-platform-tests/css/css-position/position-sticky-nested-right.html
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<!DOCTYPE html>
<title>Nested right-constrained position:sticky elements should render correctly</title>
<link rel="match" href="position-sticky-nested-right-ref.html" />
<link rel="help" href="https://www.w3.org/TR/css-position-3/#sticky-pos" />
<meta name="assert" content="This test checks that nested position:sticky elements with a right constraint render correctly" />
<style>
.group {
position: relative;
width: 250px;
height: 150px;
}
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
.scroller {
position: relative;
width: 200px;
height: 100px;
overflow-x: auto;
overflow-y: hidden;
}
<script src="resources/sticky-util.js"></script>
.contents {
height: 100%;
width: 500px;
/* Allow nice formatting of inline divs. Fonts are not used in this test. */
font-size: 0;
}
.prepadding {
display: inline-block;
height: 100%;
width: 200px;
}
.container {
display: inline-block;
height: 100%;
width: 200px;
}
.filler {
display: inline-block;
height: 100%;
width: 100px;
}
.outerIndicator {
background-color: red;
position: absolute;
top: 0;
display: inline-block;
height: 100%;
width: 100px;
}
.innerIndicator {
background-color: red;
position: absolute;
top: 0;
display: inline-block;
height: 100%;
width: 50px;
}
.outerSticky {
background-color: green;
position: sticky;
right: 25px;
display: inline-block;
height: 100%;
width: 100px;
}
.innerFiller {
display: inline-block;
height: 100%;
width: 50px;
}
.innerSticky {
background-color: blue;
position: sticky;
right: 35px;
display: inline-block;
height: 100%;
width: 50px;
}
</style>
<body></body>
<script>
window.addEventListener('load', function() {
document.getElementById('scroller1').scrollLeft = 75;
document.getElementById('scroller2').scrollLeft = 175;
document.getElementById('scroller3').scrollLeft = 250;
});
test(() => {
const elements = setupNestedStickyTest('right', 25, 35);
elements.scroller.scrollLeft = 200;
const nonStickyLeftX = elements.container.offsetLeft +
elements.filler.clientWidth;
assert_equals(elements.sticky.offsetLeft, nonStickyLeftX);
// The inner sticky should not be offset from the outer.
const nonStickyInnerLeftX = elements.sticky.clientWidth -
elements.innerSticky.clientWidth;
assert_equals(elements.innerSticky.offsetLeft, nonStickyInnerLeftX);
}, 'before reaching the sticking point, neither sticky box should be offset');
test(() => {
const elements = setupNestedStickyTest('right', 25, 50);
elements.scroller.scrollLeft = 150;
const nonStickyLeftX = elements.container.offsetLeft +
elements.filler.clientWidth;
assert_equals(elements.sticky.offsetLeft, nonStickyLeftX);
assert_equals(elements.innerSticky.offsetLeft, 35);
}, 'the inner sticky can stick before the outer one if necessary');
test(() => {
const elements = setupNestedStickyTest('right', 25, 35);
elements.scroller.scrollLeft = 100;
const nonStickyLeftX = elements.container.offsetLeft +
elements.filler.clientWidth;
const nonStickyBottomX = nonStickyLeftX + elements.sticky.clientWidth;
const targetBottomX = elements.scroller.clientWidth +
elements.scroller.scrollLeft - 25;
const stickyOffset = nonStickyBottomX - targetBottomX;
assert_equals(elements.sticky.offsetLeft, nonStickyLeftX - stickyOffset);
// The inner sticky has similar math, but its offsetLeft is relative to the
// sticky element and in this test is (height - the difference between the
// top values).
assert_equals(elements.innerSticky.offsetLeft, 40);
}, 'both sticky boxes can be stuck at the same time');
test(() => {
const elements = setupNestedStickyTest('right', 25, 35);
elements.scroller.scrollLeft = 0;
assert_equals(elements.sticky.offsetLeft, elements.container.offsetLeft);
assert_equals(elements.innerSticky.offsetLeft, 0);
}, 'neither sticky can escape their containing block');
test(() => {
const elements = setupNestedStickyTest('right', 25, 500);
elements.scroller.scrollLeft = 200;
// It doesn't matter how big the inner sticky offset is, it cannot escape its
// containing block (the outer sticky).
assert_equals(elements.innerSticky.offsetLeft, 0);
}, 'the inner sticky cannot be pushed outside the outer sticky');
</script>
<div class="group">
<div id="scroller1" class="scroller">
<div class="outerIndicator" style="left: 200px;"></div>
<div class="contents">
<div class="prepadding"></div>
<div class="container">
<div class="filler"></div>
<div class="outerSticky">
<div class="innerIndicator" style="left: 0;"></div>
<div class="innerFiller"></div>
<div class="innerSticky"></div>
</div>
</div>
</div>
</div>
</div>
<div class="group">
<div id="scroller2" class="scroller">
<div class="outerIndicator" style="left: 250px;"></div>
<div class="contents">
<div class="prepadding"></div>
<div class="container">
<div class="filler"></div>
<div class="outerSticky">
<div class="innerIndicator" style="left: 40px;"></div>
<div class="innerFiller"></div>
<div class="innerSticky"></div>
</div>
</div>
</div>
</div>
</div>
<div class="group">
<div id="scroller3" class="scroller">
<div class="outerIndicator" style="left: 300px;"></div>
<div class="contents">
<div class="prepadding"></div>
<div class="container">
<div class="filler"></div>
<div class="outerSticky">
<div class="innerIndicator" style="left: 50px;"></div>
<div class="innerFiller"></div>
<div class="innerSticky"></div>
</div>
</div>
</div>
</div>
</div>
<div>You should see three green and three blue boxes above. No red should be visible.</div>