| <!DOCTYPE html> |
| <script src='../../resources/gesture-util.js'></script> |
| <script src="../../resources/testharness.js"></script> |
| <script src="../../resources/testharnessreport.js"></script> |
| |
| <style> |
| #blue { |
| background-color: rgb(0, 0, 255); |
| position: absolute; |
| left: 75px; |
| top: 75px; |
| height: 100px; |
| width: 100px; |
| } |
| #blue:hover { |
| background-color: rgb(255, 255, 0); |
| } |
| </style> |
| <div id="blue"></div> |
| <script> |
| var x = 100; |
| var y = 100; |
| var blue = document.getElementById('blue'); |
| |
| window.onload = async () => { |
| promise_test(async () => { |
| await mouseMoveTo(x, y); |
| await raf(); |
| assert_true(blue.matches(':hover'), "Hover on the element blue"); |
| // Move the element blue away from the mouse cursor. |
| blue.style.top = y + 500 + 'px'; |
| // Force a layout change. |
| assert_equals(blue.offsetTop, 600, "Check that the blue element is moved by 600px"); |
| assert_true(blue.matches(':hover'), "The hover state is not yet updated"); |
| await raf(); |
| assert_false(blue.matches(':hover'), "The hover state is updated after the begin frame"); |
| }, 'The hover state is updated at the begin frame after the layout changes.'); |
| |
| } |
| </script> |
