| <!DOCTYPE HTML> |
| <script src="../../../resources/testharness.js"></script> |
| <script src="../../../resources/testharnessreport.js"></script> |
| <script src="../../../resources/gesture-util.js"></script> |
| <style> |
| |
| ::-webkit-scrollbar { |
| display: none; |
| } |
| body { |
| margin: 0px; |
| height: 1000px; |
| width: 1000px; |
| } |
| #parentDiv { |
| background-color: #FF7F7F; |
| height: 600px; |
| width: 600px; |
| overflow: scroll; |
| } |
| #content1 { |
| height: 1100px; |
| width: 1100px; |
| } |
| #childDiv { |
| background-color: #84BE6A; |
| height: 500px; |
| width: 500px; |
| overflow: scroll; |
| } |
| #content2 { |
| height: 1000px; |
| width: 1000px; |
| } |
| </style> |
| |
| <div id="parentDiv"> |
| <div id="content1"> |
| <div id="childDiv"> |
| <div id="content2"> |
| </div> |
| </div> |
| </div> |
| </div> |
| |
| <script> |
| var parentDiv = document.getElementById('parentDiv'); |
| var childDiv = document.getElementById('childDiv'); |
| var rect = childDiv.getBoundingClientRect(); |
| |
| function setUpForTest() { |
| if (window.internals) |
| internals.settings.setScrollAnimatorEnabled(false); |
| parentDiv.scrollTo(0, 0); |
| childDiv.scrollTo(0, 0); |
| } |
| |
| childDiv.addEventListener('scroll', () => { |
| if(childDiv.scrollTop > 0) |
| childDiv.remove(); |
| }); |
| |
| promise_test( async () => { |
| setUpForTest(); |
| // Start scrolling on the child div and remove the div in the middle of |
| // scrolling, then check that parentDiv starts scrolling. |
| var x = (rect.left + rect.right) / 2; |
| var y = (rect.top + rect.bottom) / 2; |
| // Slow scrolling gives enough time to switch from cc to main. |
| var pixels_per_sec = 100; |
| await smoothScroll(400, x, y, GestureSourceType.TOUCH_INPUT, 'down', pixels_per_sec); |
| await waitFor( () => {return parentDiv.scrollTop > 0}); |
| }, "New node must start wheel scrolling when the latched node is removed."); |
| </script> |
