| <!DOCTYPE html> |
| <title>position-try-fallbacks with flip-block and flip-inline</title> |
| <link rel="author" title="Morten Stenshorne" href="mailto:mstensho@chromium.org"> |
| <link rel="help" href="https://drafts.csswg.org/css-anchor-position/#position-try-fallbacks"> |
| <link rel="help" href="https://issues.chromium.org/issues/400761086"> |
| <script src="/resources/testharness.js"></script> |
| <script src="/resources/testharnessreport.js"></script> |
| <script src="support/test-common.js"></script> |
| <style> |
| #anchor { |
| anchor-name: --a; |
| margin-top: 200px; |
| margin-left: 100px; |
| width: 150px; |
| height: 50px; |
| background: blue; |
| } |
| #anchored { |
| position: absolute; |
| position-anchor: --a; |
| position-area: top left; |
| position-try-fallbacks: flip-inline, flip-block, flip-block flip-inline; |
| width: 100%; |
| height: 100%; |
| background: hotpink; |
| } |
| </style> |
| |
| <div id="scroller" style="position:relative; overflow:hidden; width:400px; height:400px;"> |
| <div id="anchor"></div> |
| <div style="width:1000px; height:1000px;"></div> |
| <div id="anchored"></div> |
| </div> |
| |
| <script> |
| promise_test(async () => { |
| await waitUntilNextAnimationFrame(); |
| await waitUntilNextAnimationFrame(); |
| assert_equals(anchored.offsetLeft, 0); |
| assert_equals(anchored.offsetTop, 0); |
| assert_equals(anchored.offsetWidth, 100); |
| assert_equals(anchored.offsetHeight, 200); |
| }, 'initial position'); |
| |
| promise_test(async () => { |
| scroller.scrollTo(0, 10); |
| await waitUntilNextAnimationFrame(); |
| await waitUntilNextAnimationFrame(); |
| assert_equals(anchored.offsetLeft, 0); |
| assert_equals(anchored.offsetTop, 250); |
| assert_equals(anchored.offsetWidth, 100); |
| assert_equals(anchored.offsetHeight, 160); |
| }, 'Scroll down to 0,10'); |
| |
| promise_test(async () => { |
| scroller.scrollTo(10, 10); |
| await waitUntilNextAnimationFrame(); |
| await waitUntilNextAnimationFrame(); |
| assert_equals(anchored.offsetLeft, 250); |
| assert_equals(anchored.offsetTop, 10); |
| assert_equals(anchored.offsetWidth, 160); |
| assert_equals(anchored.offsetHeight, 190); |
| }, 'Scroll right to 10,10'); |
| |
| promise_test(async () => { |
| scroller.scrollTo(10, 0); |
| await waitUntilNextAnimationFrame(); |
| await waitUntilNextAnimationFrame(); |
| assert_equals(anchored.offsetLeft, 250); |
| assert_equals(anchored.offsetTop, 10); |
| assert_equals(anchored.offsetWidth, 160); |
| assert_equals(anchored.offsetHeight, 190); |
| }, 'Scroll up to 10,0'); |
| |
| promise_test(async () => { |
| scroller.scrollTo(10, 20); |
| await waitUntilNextAnimationFrame(); |
| await waitUntilNextAnimationFrame(); |
| assert_equals(anchored.offsetLeft, 10); |
| assert_equals(anchored.offsetTop, 250); |
| assert_equals(anchored.offsetWidth, 90); |
| assert_equals(anchored.offsetHeight, 170); |
| }, 'Scroll down to 10,20'); |
| |
| promise_test(async () => { |
| scroller.scrollTo(101, 20); |
| await waitUntilNextAnimationFrame(); |
| await waitUntilNextAnimationFrame(); |
| assert_equals(anchored.offsetLeft, 250); |
| assert_equals(anchored.offsetTop, 20); |
| assert_equals(anchored.offsetWidth, 251); |
| assert_equals(anchored.offsetHeight, 180); |
| }, 'Scroll down to 101,20'); |
| |
| promise_test(async () => { |
| scroller.scrollTo(101, 30); |
| await waitUntilNextAnimationFrame(); |
| await waitUntilNextAnimationFrame(); |
| assert_equals(anchored.offsetLeft, 250); |
| assert_equals(anchored.offsetTop, 250); |
| assert_equals(anchored.offsetWidth, 251); |
| assert_equals(anchored.offsetHeight, 180); |
| }, 'Scroll down to 101,30'); |
| </script> |
