| <!DOCTYPE html> |
| <script src="../../../resources/gesture-util.js"></script> |
| <script src="../../../resources/testharness.js"></script> |
| <script src="../../../resources/testharnessreport.js"></script> |
| |
| <div id="host"></div> |
| |
| <script> |
| var receivedMouseWheel = false; |
| |
| function createInput(name) { |
| var div = document.createElement('input'); |
| div.style.width = '100px'; |
| div.style.height = '100px'; |
| |
| div.addEventListener('mousewheel', function(e) { |
| receivedMouseWheel = true; |
| }); |
| |
| return div; |
| } |
| |
| promise_test(async () => { |
| var shadowRoot = host.attachShadow({ mode: 'open' }); |
| var shadowDiv = createInput('shadow'); |
| shadowRoot.appendChild(shadowDiv); |
| |
| var center = elementCenter(shadowDiv); |
| await wheelTick(0, -1, center); |
| |
| assert_true(receivedMouseWheel); |
| }, "Verify a mousewheel event is fired when wheeling over shadow div element."); |
| </script> |
