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| 1 | +<!doctype html> |
| 2 | +<meta charset="utf-8"> |
| 3 | +<title>CSS Test: ::scroll-marker only scrolls associated scrolling container</title> |
| 4 | +<link rel="help" href="https://drafts.csswg.org/css-overflow-5/#scroll-marker-activation"> |
| 5 | +<script src="/dom/events/scrolling/scroll_support.js"></script> |
| 6 | +<script src="/resources/testharness.js"></script> |
| 7 | +<script src="/resources/testharnessreport.js"></script> |
| 8 | +<script src="/resources/testdriver.js"></script> |
| 9 | +<script src="/resources/testdriver-actions.js"></script> |
| 10 | +<script src="/resources/testdriver-vendor.js"></script> |
| 11 | +<style> |
| 12 | + body { |
| 13 | + margin: 0; |
| 14 | + } |
| 15 | + |
| 16 | + #ancestor-scroller { |
| 17 | + border: 2px solid gray; |
| 18 | + width: 600px; |
| 19 | + height: 150px; |
| 20 | + overflow: auto; |
| 21 | + position: relative; |
| 22 | + } |
| 23 | + |
| 24 | + #marker-scroller { |
| 25 | + height: 300px; |
| 26 | + overflow: auto; |
| 27 | + scroll-snap-type: x mandatory; |
| 28 | + position: relative; |
| 29 | + scroll-marker-group: before; |
| 30 | + white-space: nowrap; |
| 31 | + } |
| 32 | + |
| 33 | + #marker-scroller div { |
| 34 | + scroll-snap-align: start; |
| 35 | + box-sizing: border-box; |
| 36 | + border-radius: 5px; |
| 37 | + background: lightgray; |
| 38 | + border: 1px solid black; |
| 39 | + display: inline-block; |
| 40 | + width: 500px; |
| 41 | + height: 100%; |
| 42 | + } |
| 43 | + |
| 44 | + #marker-scroller::scroll-marker-group { |
| 45 | + display: flex; |
| 46 | + height: 100px; |
| 47 | + } |
| 48 | + |
| 49 | + #marker-scroller div::scroll-marker { |
| 50 | + content: ""; |
| 51 | + width: 100px; |
| 52 | + height: 100px; |
| 53 | + box-sizing: border-box; |
| 54 | + border-radius: 5px; |
| 55 | + border: 1px solid black; |
| 56 | + display: inline-block; |
| 57 | + } |
| 58 | + #marker-scroller div::scroll-marker:target-current { |
| 59 | + background: blue; |
| 60 | + } |
| 61 | +</style> |
| 62 | +<div id="ancestor-scroller"> |
| 63 | + <div id="marker-scroller"> |
| 64 | + <div>1</div> |
| 65 | + <div id="target">2</div> |
| 66 | + <div>3</div> |
| 67 | + </div> |
| 68 | +</div> |
| 69 | +<script> |
| 70 | + promise_test(async t => { |
| 71 | + const target = document.querySelector('#target'); |
| 72 | + const ancestorScroller = document.querySelector('#ancestor-scroller'); |
| 73 | + const scroller = document.querySelector('#marker-scroller'); |
| 74 | + const scrollEndPromise = waitForScrollEndFallbackToDelayWithoutScrollEvent(scroller); |
| 75 | + actions_promise = new test_driver.Actions() |
| 76 | + .pointerMove(150, 50) |
| 77 | + .pointerDown() |
| 78 | + .pointerUp() |
| 79 | + .send(); |
| 80 | + await actions_promise; |
| 81 | + await scrollEndPromise; |
| 82 | + assert_equals(scroller.scrollLeft, target.offsetLeft, "::scroll-marker activation scrolls to target"); |
| 83 | + assert_equals(ancestorScroller.scrollTop, 0, "::scroll-marker activation doesn't scroll ancestors"); |
| 84 | + }); |
| 85 | +</script> |
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