scrollable-overflow-transform-dynamic-003.html

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This WPT test may be referenced by the following Test IDs:
- /css/css-overflow/scrollable-overflow-transform-dynamic-003.html - WPT Dashboard Interop Dashboard

<!DOCTYPE html>

<meta charset="utf-8">

<meta name="viewport" content="width=device-width,initial-scale=1">

<title>CSS Overflow: Scrollable Overflow Transform Dynamic Inline Element</title>

<link rel="author" title="Manuel Rego Casasnovas" href="mailto:rego@igalia.com">

<link rel="help" href="https://drafts.csswg.org/css-overflow-3/#scrollable" />

<meta name="assert" content="Checks that changes on an element's transform contribute to the scrollable overflow on an inline element.">

<script src="/resources/testharness.js"></script>

<script src="/resources/testharnessreport.js"></script>

<style>

  .container {

    display: inline-block;

    width: 100px;

    height: 100px;

    overflow: auto;

    background: silver;

    border: solid thick;

  .element {

    width: 50px;

    height: 50px;

    background: lime;

</style>

<div id="container1" style="top: 0px;" class="container">

  <div id="element1" style="transform: translateX(20px);" class="element"></div>

</div>

<div id="container2" style="top: 150px;"  class="container">

  <div id="element2" style="transform: translateY(30px);" class="element"></div>

</div>

<div id="container3" style="top: 300px;"  class="container">

  <div id="element3" style="transform: translate(20px, 30px);" class="element"></div>

</div>

<script>

  test(() => {

    assert_equals(container1.scrollWidth, 100);

    element1.style.transform = "translateX(200px)";

    assert_equals(container1.scrollWidth, 250);

  }, "Check scrollWidth before and after transform chage");

  test(() => {

    assert_equals(container2.scrollHeight, 100);

    element2.style.transform = "translateY(300px)";

    assert_equals(container2.scrollHeight, 350);

  }, "Check scrollHeight before and after transform chage");

  test(() => {

    assert_equals(container3.scrollWidth, 100);

    assert_equals(container3.scrollHeight, 100);

    element3.style.transform = "translate(200px, 300px)";

    assert_equals(container3.scrollWidth, 250);

    assert_equals(container3.scrollHeight, 350);

  }, "Check scrollWidth and scrollHeight before and after transform chage");

</script>