| <!DOCTYPE html> |
| <head> |
| <title>Performance Paint Timing Test: FCP due to direction change</title> |
| <style> |
| #text { |
| right: -100px; |
| position: absolute; |
| } |
| |
| body { |
| direction: rtl; |
| } |
| |
| #dummy { |
| background: yellow; |
| width: 10px; |
| height: 10px; |
| position: absolute; |
| left: 0; |
| top: 0; |
| } |
| </style> |
| </head> |
| <body> |
| <script src="../resources/utils.js"></script> |
| <script src="/resources/testharness.js"></script> |
| <script src="/resources/testharnessreport.js"></script> |
| <div id="dummy"></div> |
| <div id="text">TEXT</div> |
| <script> |
| promise_test(async t => { |
| assert_precondition(window.PerformancePaintTiming, "Paint Timing isn't supported."); |
| await new Promise(r => window.addEventListener('load', r)); |
| await assertNoFirstContentfulPaint(t); |
| document.body.style.direction = 'ltr' |
| document.getElementById('dummy').style.background = 'green' |
| await assertFirstContentfulPaint(t); |
| }, 'FCP should fire when coordinates are negative, if within document scrollable area'); |
| </script> |
| </body> |
| </html> |
