| <!DOCTYPE html> |
| <title>Multicol in scrollable with ::column::scroll-marker</title> |
| <link rel="author" title="Morten Stenshorne" href="mailto:mstensho@chromium.org"> |
| <link rel="help" href="https://www.w3.org/TR/css-multicol-2/#column-pseudo"> |
| <script src="/resources/testharness.js"></script> |
| <script src="/resources/testharnessreport.js"></script> |
| <script src="/resources/testdriver.js"></script> |
| <script src="/resources/testdriver-actions.js"></script> |
| <script src="/resources/testdriver-vendor.js"></script> |
| <style> |
| #scrollable { |
| overflow: hidden; |
| height: 100px; |
| border: 15px solid; |
| line-height: 20px; |
| scroll-marker-group: before; |
| background: yellow; |
| } |
| #multicol { |
| columns: 3; |
| column-fill: auto; |
| gap: 0; |
| orphans: 1; |
| widows: 1; |
| width: 420px; |
| height: 100px; |
| margin-left: 100px; |
| margin-top: 50px; |
| } |
| #scrollable::scroll-marker-group { |
| display: flex; |
| justify-content: space-between; |
| height: 50px; |
| background: cyan; |
| } |
| #multicol::column::scroll-marker { |
| display: flex; |
| justify-content: center; |
| align-items: center; |
| width: 50px; |
| height: 50px; |
| background: hotpink; |
| content: "*"; |
| } |
| </style> |
| <div style="width:450px;"> |
| <div id="scrollable"> |
| <div id="multicol"> |
| First column<br> |
| <br> |
| <br> |
| <br> |
| <br> |
| Second column<br> |
| <br> |
| <br> |
| <br> |
| <br> |
| Third column<br> |
| <br> |
| <br> |
| <br> |
| <br> |
| Fourth column<br> |
| <br> |
| <br> |
| <br> |
| <br> |
| Fifth column<br> |
| </div> |
| </div> |
| </div> |
| <script> |
| function sendClick(x) { |
| return new test_driver.Actions() |
| .pointerMove(x, 10) |
| .pointerDown() |
| .pointerUp() |
| .send(); |
| } |
| |
| test(()=> { |
| assert_equals(scrollable.scrollLeft, 0); |
| assert_equals(scrollable.scrollTop, 0); |
| }, "Initial scroll position"); |
| promise_test(async t => { |
| await sendClick(110); |
| assert_equals(scrollable.scrollLeft, 0); |
| assert_equals(scrollable.scrollTop, 50); |
| }, "Scroll second column into view"); |
| promise_test(async t => { |
| await sendClick(210); |
| assert_equals(scrollable.scrollLeft, 100); |
| assert_equals(scrollable.scrollTop, 50); |
| }, "Scroll third column into view"); |
| promise_test(async t => { |
| await sendClick(310); |
| assert_equals(scrollable.scrollLeft, 240); |
| assert_equals(scrollable.scrollTop, 50); |
| }, "Scroll fourth column into view"); |
| promise_test(async t => { |
| await sendClick(410); |
| assert_equals(scrollable.scrollLeft, 380); |
| assert_equals(scrollable.scrollTop, 50); |
| }, "Scroll fifth column into view"); |
| promise_test(async t => { |
| await sendClick(310); |
| assert_equals(scrollable.scrollLeft, 380); |
| assert_equals(scrollable.scrollTop, 50); |
| }, "Scroll fourth column into view again"); |
| promise_test(async t => { |
| await sendClick(210); |
| assert_equals(scrollable.scrollLeft, 380); |
| assert_equals(scrollable.scrollTop, 50); |
| }, "Scroll third column into view again"); |
| promise_test(async t => { |
| await sendClick(110); |
| assert_equals(scrollable.scrollLeft, 240); |
| assert_equals(scrollable.scrollTop, 50); |
| }, "Scroll second column into view again"); |
| promise_test(async t => { |
| await sendClick(10); |
| assert_equals(scrollable.scrollLeft, 100); |
| assert_equals(scrollable.scrollTop, 50); |
| }, "Scroll first column into view"); |
| </script> |
