| <!DOCTYPE html> |
| <meta charset="utf-8"> |
| <title>CSS Overflow: Scrollable Overflow Transform Dynamic Position Change</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, even when some element has changed position too."> |
| <script src="/resources/testharness.js"></script> |
| <script src="/resources/testharnessreport.js"></script> |
| <style> |
| .container { |
| position: absolute; |
| width: 100px; |
| height: 100px; |
| overflow: auto; |
| background: silver; |
| border: solid thick; |
| } |
| |
| .element { |
| width: 50px; |
| height: 50px; |
| background: lime; |
| } |
| </style> |
| |
| <div id="container1" style="top: 100px;" class="container"> |
| <div id="element1" style="transform: translateX(20px);" class="element"></div> |
| </div> |
| |
| <div id="container2" style="top: 250px;" class="container"> |
| <div id="element2" style="transform: translateY(30px);" class="element"></div> |
| </div> |
| |
| <div id="container3" style="top: 400px;" class="container"> |
| <div id="element3" style="transform: translate(20px, 30px);" class="element"></div> |
| </div> |
| |
| <script> |
| test(() => { |
| assert_equals(container1.scrollWidth, 100); |
| container1.style.top = "110px"; |
| element1.style.transform = "translateX(200px)"; |
| assert_equals(container1.scrollWidth, 250); |
| }, "Check scrollWidth before and after position and transform chage"); |
| |
| test(() => { |
| assert_equals(container2.scrollHeight, 100); |
| container2.style.top = "260px"; |
| element2.style.transform = "translateY(300px)"; |
| assert_equals(container2.scrollHeight, 350); |
| }, "Check scrollHeight before and after position and transform chage"); |
| |
| test(() => { |
| assert_equals(container3.scrollWidth, 100); |
| assert_equals(container3.scrollHeight, 100); |
| container3.style.top = "410px"; |
| element3.style.transform = "translate(200px, 300px)"; |
| assert_equals(container3.scrollWidth, 250); |
| assert_equals(container3.scrollHeight, 350); |
| }, "Check scrollWidth and scrollHeight after position and transform chage"); |
| </script> |